| /* |
| * Driver interaction with Linux nl80211/cfg80211 |
| * Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi> |
| * Copyright (c) 2003-2004, Instant802 Networks, Inc. |
| * Copyright (c) 2005-2006, Devicescape Software, Inc. |
| * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net> |
| * Copyright (c) 2009-2010, Atheros Communications |
| * |
| * This software may be distributed under the terms of the BSD license. |
| * See README for more details. |
| */ |
| |
| #include "includes.h" |
| #include <sys/ioctl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <net/if.h> |
| #include <netlink/genl/genl.h> |
| #include <netlink/genl/family.h> |
| #include <netlink/genl/ctrl.h> |
| #include <linux/rtnetlink.h> |
| #include <netpacket/packet.h> |
| #include <linux/filter.h> |
| #include <linux/errqueue.h> |
| #include "nl80211_copy.h" |
| |
| #include "common.h" |
| #include "eloop.h" |
| #include "utils/list.h" |
| #include "common/qca-vendor.h" |
| #include "common/ieee802_11_defs.h" |
| #include "common/ieee802_11_common.h" |
| #include "l2_packet/l2_packet.h" |
| #include "netlink.h" |
| #include "linux_ioctl.h" |
| #include "radiotap.h" |
| #include "radiotap_iter.h" |
| #include "rfkill.h" |
| #include "driver.h" |
| |
| #ifndef SO_WIFI_STATUS |
| # if defined(__sparc__) |
| # define SO_WIFI_STATUS 0x0025 |
| # elif defined(__parisc__) |
| # define SO_WIFI_STATUS 0x4022 |
| # else |
| # define SO_WIFI_STATUS 41 |
| # endif |
| |
| # define SCM_WIFI_STATUS SO_WIFI_STATUS |
| #endif |
| |
| #ifndef SO_EE_ORIGIN_TXSTATUS |
| #define SO_EE_ORIGIN_TXSTATUS 4 |
| #endif |
| |
| #ifndef PACKET_TX_TIMESTAMP |
| #define PACKET_TX_TIMESTAMP 16 |
| #endif |
| |
| #ifdef ANDROID |
| #include "android_drv.h" |
| #endif /* ANDROID */ |
| #ifdef CONFIG_LIBNL20 |
| /* libnl 2.0 compatibility code */ |
| #define nl_handle nl_sock |
| #define nl80211_handle_alloc nl_socket_alloc_cb |
| #define nl80211_handle_destroy nl_socket_free |
| #else |
| /* |
| * libnl 1.1 has a bug, it tries to allocate socket numbers densely |
| * but when you free a socket again it will mess up its bitmap and |
| * and use the wrong number the next time it needs a socket ID. |
| * Therefore, we wrap the handle alloc/destroy and add our own pid |
| * accounting. |
| */ |
| static uint32_t port_bitmap[32] = { 0 }; |
| |
| static struct nl_handle *nl80211_handle_alloc(void *cb) |
| { |
| struct nl_handle *handle; |
| uint32_t pid = getpid() & 0x3FFFFF; |
| int i; |
| |
| handle = nl_handle_alloc_cb(cb); |
| |
| for (i = 0; i < 1024; i++) { |
| if (port_bitmap[i / 32] & (1 << (i % 32))) |
| continue; |
| port_bitmap[i / 32] |= 1 << (i % 32); |
| pid += i << 22; |
| break; |
| } |
| |
| nl_socket_set_local_port(handle, pid); |
| |
| return handle; |
| } |
| |
| static void nl80211_handle_destroy(struct nl_handle *handle) |
| { |
| uint32_t port = nl_socket_get_local_port(handle); |
| |
| port >>= 22; |
| port_bitmap[port / 32] &= ~(1 << (port % 32)); |
| |
| nl_handle_destroy(handle); |
| } |
| #endif /* CONFIG_LIBNL20 */ |
| |
| |
| #ifdef ANDROID |
| /* system/core/libnl_2 does not include nl_socket_set_nonblocking() */ |
| static int android_nl_socket_set_nonblocking(struct nl_handle *handle) |
| { |
| return fcntl(nl_socket_get_fd(handle), F_SETFL, O_NONBLOCK); |
| } |
| #undef nl_socket_set_nonblocking |
| #define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h) |
| #endif /* ANDROID */ |
| |
| |
| static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg) |
| { |
| struct nl_handle *handle; |
| |
| handle = nl80211_handle_alloc(cb); |
| if (handle == NULL) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " |
| "callbacks (%s)", dbg); |
| return NULL; |
| } |
| |
| if (genl_connect(handle)) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic " |
| "netlink (%s)", dbg); |
| nl80211_handle_destroy(handle); |
| return NULL; |
| } |
| |
| return handle; |
| } |
| |
| |
| static void nl_destroy_handles(struct nl_handle **handle) |
| { |
| if (*handle == NULL) |
| return; |
| nl80211_handle_destroy(*handle); |
| *handle = NULL; |
| } |
| |
| |
| #if __WORDSIZE == 64 |
| #define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL |
| #else |
| #define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL |
| #endif |
| |
| static void nl80211_register_eloop_read(struct nl_handle **handle, |
| eloop_sock_handler handler, |
| void *eloop_data) |
| { |
| nl_socket_set_nonblocking(*handle); |
| eloop_register_read_sock(nl_socket_get_fd(*handle), handler, |
| eloop_data, *handle); |
| *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); |
| } |
| |
| |
| static void nl80211_destroy_eloop_handle(struct nl_handle **handle) |
| { |
| *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID); |
| eloop_unregister_read_sock(nl_socket_get_fd(*handle)); |
| nl_destroy_handles(handle); |
| } |
| |
| |
| #ifndef IFF_LOWER_UP |
| #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */ |
| #endif |
| #ifndef IFF_DORMANT |
| #define IFF_DORMANT 0x20000 /* driver signals dormant */ |
| #endif |
| |
| #ifndef IF_OPER_DORMANT |
| #define IF_OPER_DORMANT 5 |
| #endif |
| #ifndef IF_OPER_UP |
| #define IF_OPER_UP 6 |
| #endif |
| |
| struct nl80211_global { |
| struct dl_list interfaces; |
| int if_add_ifindex; |
| u64 if_add_wdevid; |
| int if_add_wdevid_set; |
| struct netlink_data *netlink; |
| struct nl_cb *nl_cb; |
| struct nl_handle *nl; |
| int nl80211_id; |
| int ioctl_sock; /* socket for ioctl() use */ |
| |
| struct nl_handle *nl_event; |
| }; |
| |
| struct nl80211_wiphy_data { |
| struct dl_list list; |
| struct dl_list bsss; |
| struct dl_list drvs; |
| |
| struct nl_handle *nl_beacons; |
| struct nl_cb *nl_cb; |
| |
| int wiphy_idx; |
| }; |
| |
| static void nl80211_global_deinit(void *priv); |
| |
| struct i802_bss { |
| struct wpa_driver_nl80211_data *drv; |
| struct i802_bss *next; |
| int ifindex; |
| u64 wdev_id; |
| char ifname[IFNAMSIZ + 1]; |
| char brname[IFNAMSIZ]; |
| unsigned int beacon_set:1; |
| unsigned int added_if_into_bridge:1; |
| unsigned int added_bridge:1; |
| unsigned int in_deinit:1; |
| unsigned int wdev_id_set:1; |
| unsigned int added_if:1; |
| |
| u8 addr[ETH_ALEN]; |
| |
| int freq; |
| int if_dynamic; |
| |
| void *ctx; |
| struct nl_handle *nl_preq, *nl_mgmt; |
| struct nl_cb *nl_cb; |
| |
| struct nl80211_wiphy_data *wiphy_data; |
| struct dl_list wiphy_list; |
| }; |
| |
| struct wpa_driver_nl80211_data { |
| struct nl80211_global *global; |
| struct dl_list list; |
| struct dl_list wiphy_list; |
| char phyname[32]; |
| void *ctx; |
| int ifindex; |
| int if_removed; |
| int if_disabled; |
| int ignore_if_down_event; |
| struct rfkill_data *rfkill; |
| struct wpa_driver_capa capa; |
| u8 *extended_capa, *extended_capa_mask; |
| unsigned int extended_capa_len; |
| int has_capability; |
| |
| int operstate; |
| |
| int scan_complete_events; |
| enum scan_states { |
| NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED, |
| SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED, |
| SCHED_SCAN_RESULTS |
| } scan_state; |
| |
| struct nl_cb *nl_cb; |
| |
| u8 auth_bssid[ETH_ALEN]; |
| u8 auth_attempt_bssid[ETH_ALEN]; |
| u8 bssid[ETH_ALEN]; |
| u8 prev_bssid[ETH_ALEN]; |
| int associated; |
| u8 ssid[32]; |
| size_t ssid_len; |
| enum nl80211_iftype nlmode; |
| enum nl80211_iftype ap_scan_as_station; |
| unsigned int assoc_freq; |
| |
| int monitor_sock; |
| int monitor_ifidx; |
| int monitor_refcount; |
| |
| unsigned int disabled_11b_rates:1; |
| unsigned int pending_remain_on_chan:1; |
| unsigned int in_interface_list:1; |
| unsigned int device_ap_sme:1; |
| unsigned int poll_command_supported:1; |
| unsigned int data_tx_status:1; |
| unsigned int scan_for_auth:1; |
| unsigned int retry_auth:1; |
| unsigned int use_monitor:1; |
| unsigned int ignore_next_local_disconnect:1; |
| unsigned int allow_p2p_device:1; |
| unsigned int hostapd:1; |
| unsigned int start_mode_ap:1; |
| unsigned int start_iface_up:1; |
| |
| u64 remain_on_chan_cookie; |
| u64 send_action_cookie; |
| |
| unsigned int last_mgmt_freq; |
| |
| struct wpa_driver_scan_filter *filter_ssids; |
| size_t num_filter_ssids; |
| |
| struct i802_bss *first_bss; |
| |
| int eapol_tx_sock; |
| |
| int eapol_sock; /* socket for EAPOL frames */ |
| |
| int default_if_indices[16]; |
| int *if_indices; |
| int num_if_indices; |
| |
| /* From failed authentication command */ |
| int auth_freq; |
| u8 auth_bssid_[ETH_ALEN]; |
| u8 auth_ssid[32]; |
| size_t auth_ssid_len; |
| int auth_alg; |
| u8 *auth_ie; |
| size_t auth_ie_len; |
| u8 auth_wep_key[4][16]; |
| size_t auth_wep_key_len[4]; |
| int auth_wep_tx_keyidx; |
| int auth_local_state_change; |
| int auth_p2p; |
| }; |
| |
| |
| static void wpa_driver_nl80211_deinit(struct i802_bss *bss); |
| static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, |
| void *timeout_ctx); |
| static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, |
| enum nl80211_iftype nlmode); |
| static int |
| wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, |
| const u8 *set_addr, int first); |
| static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, |
| const u8 *addr, int cmd, u16 reason_code, |
| int local_state_change); |
| static void nl80211_remove_monitor_interface( |
| struct wpa_driver_nl80211_data *drv); |
| static int nl80211_send_frame_cmd(struct i802_bss *bss, |
| unsigned int freq, unsigned int wait, |
| const u8 *buf, size_t buf_len, u64 *cookie, |
| int no_cck, int no_ack, int offchanok); |
| static int nl80211_register_frame(struct i802_bss *bss, |
| struct nl_handle *hl_handle, |
| u16 type, const u8 *match, size_t match_len); |
| static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, |
| int report); |
| #ifdef ANDROID |
| static int android_pno_start(struct i802_bss *bss, |
| struct wpa_driver_scan_params *params); |
| static int android_pno_stop(struct i802_bss *bss); |
| extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, |
| size_t buf_len); |
| #endif /* ANDROID */ |
| #ifdef ANDROID_P2P |
| int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); |
| int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); |
| int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); |
| int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, |
| const struct wpabuf *proberesp, |
| const struct wpabuf *assocresp); |
| #endif /* ANDROID_P2P */ |
| |
| static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); |
| static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); |
| static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); |
| static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, |
| enum wpa_driver_if_type type, |
| const char *ifname); |
| |
| static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, |
| struct hostapd_freq_params *freq); |
| static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, |
| int ifindex, int disabled); |
| |
| static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv); |
| static int wpa_driver_nl80211_authenticate_retry( |
| struct wpa_driver_nl80211_data *drv); |
| |
| static int i802_set_iface_flags(struct i802_bss *bss, int up); |
| |
| |
| static const char * nl80211_command_to_string(enum nl80211_commands cmd) |
| { |
| #define C2S(x) case x: return #x; |
| switch (cmd) { |
| C2S(NL80211_CMD_UNSPEC) |
| C2S(NL80211_CMD_GET_WIPHY) |
| C2S(NL80211_CMD_SET_WIPHY) |
| C2S(NL80211_CMD_NEW_WIPHY) |
| C2S(NL80211_CMD_DEL_WIPHY) |
| C2S(NL80211_CMD_GET_INTERFACE) |
| C2S(NL80211_CMD_SET_INTERFACE) |
| C2S(NL80211_CMD_NEW_INTERFACE) |
| C2S(NL80211_CMD_DEL_INTERFACE) |
| C2S(NL80211_CMD_GET_KEY) |
| C2S(NL80211_CMD_SET_KEY) |
| C2S(NL80211_CMD_NEW_KEY) |
| C2S(NL80211_CMD_DEL_KEY) |
| C2S(NL80211_CMD_GET_BEACON) |
| C2S(NL80211_CMD_SET_BEACON) |
| C2S(NL80211_CMD_START_AP) |
| C2S(NL80211_CMD_STOP_AP) |
| C2S(NL80211_CMD_GET_STATION) |
| C2S(NL80211_CMD_SET_STATION) |
| C2S(NL80211_CMD_NEW_STATION) |
| C2S(NL80211_CMD_DEL_STATION) |
| C2S(NL80211_CMD_GET_MPATH) |
| C2S(NL80211_CMD_SET_MPATH) |
| C2S(NL80211_CMD_NEW_MPATH) |
| C2S(NL80211_CMD_DEL_MPATH) |
| C2S(NL80211_CMD_SET_BSS) |
| C2S(NL80211_CMD_SET_REG) |
| C2S(NL80211_CMD_REQ_SET_REG) |
| C2S(NL80211_CMD_GET_MESH_CONFIG) |
| C2S(NL80211_CMD_SET_MESH_CONFIG) |
| C2S(NL80211_CMD_SET_MGMT_EXTRA_IE) |
| C2S(NL80211_CMD_GET_REG) |
| C2S(NL80211_CMD_GET_SCAN) |
| C2S(NL80211_CMD_TRIGGER_SCAN) |
| C2S(NL80211_CMD_NEW_SCAN_RESULTS) |
| C2S(NL80211_CMD_SCAN_ABORTED) |
| C2S(NL80211_CMD_REG_CHANGE) |
| C2S(NL80211_CMD_AUTHENTICATE) |
| C2S(NL80211_CMD_ASSOCIATE) |
| C2S(NL80211_CMD_DEAUTHENTICATE) |
| C2S(NL80211_CMD_DISASSOCIATE) |
| C2S(NL80211_CMD_MICHAEL_MIC_FAILURE) |
| C2S(NL80211_CMD_REG_BEACON_HINT) |
| C2S(NL80211_CMD_JOIN_IBSS) |
| C2S(NL80211_CMD_LEAVE_IBSS) |
| C2S(NL80211_CMD_TESTMODE) |
| C2S(NL80211_CMD_CONNECT) |
| C2S(NL80211_CMD_ROAM) |
| C2S(NL80211_CMD_DISCONNECT) |
| C2S(NL80211_CMD_SET_WIPHY_NETNS) |
| C2S(NL80211_CMD_GET_SURVEY) |
| C2S(NL80211_CMD_NEW_SURVEY_RESULTS) |
| C2S(NL80211_CMD_SET_PMKSA) |
| C2S(NL80211_CMD_DEL_PMKSA) |
| C2S(NL80211_CMD_FLUSH_PMKSA) |
| C2S(NL80211_CMD_REMAIN_ON_CHANNEL) |
| C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL) |
| C2S(NL80211_CMD_SET_TX_BITRATE_MASK) |
| C2S(NL80211_CMD_REGISTER_FRAME) |
| C2S(NL80211_CMD_FRAME) |
| C2S(NL80211_CMD_FRAME_TX_STATUS) |
| C2S(NL80211_CMD_SET_POWER_SAVE) |
| C2S(NL80211_CMD_GET_POWER_SAVE) |
| C2S(NL80211_CMD_SET_CQM) |
| C2S(NL80211_CMD_NOTIFY_CQM) |
| C2S(NL80211_CMD_SET_CHANNEL) |
| C2S(NL80211_CMD_SET_WDS_PEER) |
| C2S(NL80211_CMD_FRAME_WAIT_CANCEL) |
| C2S(NL80211_CMD_JOIN_MESH) |
| C2S(NL80211_CMD_LEAVE_MESH) |
| C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE) |
| C2S(NL80211_CMD_UNPROT_DISASSOCIATE) |
| C2S(NL80211_CMD_NEW_PEER_CANDIDATE) |
| C2S(NL80211_CMD_GET_WOWLAN) |
| C2S(NL80211_CMD_SET_WOWLAN) |
| C2S(NL80211_CMD_START_SCHED_SCAN) |
| C2S(NL80211_CMD_STOP_SCHED_SCAN) |
| C2S(NL80211_CMD_SCHED_SCAN_RESULTS) |
| C2S(NL80211_CMD_SCHED_SCAN_STOPPED) |
| C2S(NL80211_CMD_SET_REKEY_OFFLOAD) |
| C2S(NL80211_CMD_PMKSA_CANDIDATE) |
| C2S(NL80211_CMD_TDLS_OPER) |
| C2S(NL80211_CMD_TDLS_MGMT) |
| C2S(NL80211_CMD_UNEXPECTED_FRAME) |
| C2S(NL80211_CMD_PROBE_CLIENT) |
| C2S(NL80211_CMD_REGISTER_BEACONS) |
| C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME) |
| C2S(NL80211_CMD_SET_NOACK_MAP) |
| C2S(NL80211_CMD_CH_SWITCH_NOTIFY) |
| C2S(NL80211_CMD_START_P2P_DEVICE) |
| C2S(NL80211_CMD_STOP_P2P_DEVICE) |
| C2S(NL80211_CMD_CONN_FAILED) |
| C2S(NL80211_CMD_SET_MCAST_RATE) |
| C2S(NL80211_CMD_SET_MAC_ACL) |
| C2S(NL80211_CMD_RADAR_DETECT) |
| C2S(NL80211_CMD_GET_PROTOCOL_FEATURES) |
| C2S(NL80211_CMD_UPDATE_FT_IES) |
| C2S(NL80211_CMD_FT_EVENT) |
| C2S(NL80211_CMD_CRIT_PROTOCOL_START) |
| C2S(NL80211_CMD_CRIT_PROTOCOL_STOP) |
| C2S(NL80211_CMD_GET_COALESCE) |
| C2S(NL80211_CMD_SET_COALESCE) |
| C2S(NL80211_CMD_CHANNEL_SWITCH) |
| C2S(NL80211_CMD_VENDOR) |
| C2S(NL80211_CMD_SET_QOS_MAP) |
| default: |
| return "NL80211_CMD_UNKNOWN"; |
| } |
| #undef C2S |
| } |
| |
| |
| /* Converts nl80211_chan_width to a common format */ |
| static enum chan_width convert2width(int width) |
| { |
| switch (width) { |
| case NL80211_CHAN_WIDTH_20_NOHT: |
| return CHAN_WIDTH_20_NOHT; |
| case NL80211_CHAN_WIDTH_20: |
| return CHAN_WIDTH_20; |
| case NL80211_CHAN_WIDTH_40: |
| return CHAN_WIDTH_40; |
| case NL80211_CHAN_WIDTH_80: |
| return CHAN_WIDTH_80; |
| case NL80211_CHAN_WIDTH_80P80: |
| return CHAN_WIDTH_80P80; |
| case NL80211_CHAN_WIDTH_160: |
| return CHAN_WIDTH_160; |
| } |
| return CHAN_WIDTH_UNKNOWN; |
| } |
| |
| |
| static int is_ap_interface(enum nl80211_iftype nlmode) |
| { |
| return (nlmode == NL80211_IFTYPE_AP || |
| nlmode == NL80211_IFTYPE_P2P_GO); |
| } |
| |
| |
| static int is_sta_interface(enum nl80211_iftype nlmode) |
| { |
| return (nlmode == NL80211_IFTYPE_STATION || |
| nlmode == NL80211_IFTYPE_P2P_CLIENT); |
| } |
| |
| |
| static int is_p2p_net_interface(enum nl80211_iftype nlmode) |
| { |
| return (nlmode == NL80211_IFTYPE_P2P_CLIENT || |
| nlmode == NL80211_IFTYPE_P2P_GO); |
| } |
| |
| |
| static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv) |
| { |
| if (drv->associated) |
| os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); |
| drv->associated = 0; |
| os_memset(drv->bssid, 0, ETH_ALEN); |
| } |
| |
| |
| struct nl80211_bss_info_arg { |
| struct wpa_driver_nl80211_data *drv; |
| struct wpa_scan_results *res; |
| unsigned int assoc_freq; |
| u8 assoc_bssid[ETH_ALEN]; |
| }; |
| |
| static int bss_info_handler(struct nl_msg *msg, void *arg); |
| |
| |
| /* nl80211 code */ |
| static int ack_handler(struct nl_msg *msg, void *arg) |
| { |
| int *err = arg; |
| *err = 0; |
| return NL_STOP; |
| } |
| |
| static int finish_handler(struct nl_msg *msg, void *arg) |
| { |
| int *ret = arg; |
| *ret = 0; |
| return NL_SKIP; |
| } |
| |
| static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, |
| void *arg) |
| { |
| int *ret = arg; |
| *ret = err->error; |
| return NL_SKIP; |
| } |
| |
| |
| static int no_seq_check(struct nl_msg *msg, void *arg) |
| { |
| return NL_OK; |
| } |
| |
| |
| static int send_and_recv(struct nl80211_global *global, |
| struct nl_handle *nl_handle, struct nl_msg *msg, |
| int (*valid_handler)(struct nl_msg *, void *), |
| void *valid_data) |
| { |
| struct nl_cb *cb; |
| int err = -ENOMEM; |
| |
| cb = nl_cb_clone(global->nl_cb); |
| if (!cb) |
| goto out; |
| |
| err = nl_send_auto_complete(nl_handle, msg); |
| if (err < 0) |
| goto out; |
| |
| err = 1; |
| |
| nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); |
| nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); |
| nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); |
| |
| if (valid_handler) |
| nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, |
| valid_handler, valid_data); |
| |
| while (err > 0) { |
| int res = nl_recvmsgs(nl_handle, cb); |
| if (res) { |
| wpa_printf(MSG_INFO, |
| "nl80211: %s->nl_recvmsgs failed: %d", |
| __func__, res); |
| } |
| } |
| out: |
| nl_cb_put(cb); |
| nlmsg_free(msg); |
| return err; |
| } |
| |
| |
| static int send_and_recv_msgs_global(struct nl80211_global *global, |
| struct nl_msg *msg, |
| int (*valid_handler)(struct nl_msg *, void *), |
| void *valid_data) |
| { |
| return send_and_recv(global, global->nl, msg, valid_handler, |
| valid_data); |
| } |
| |
| |
| static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, |
| struct nl_msg *msg, |
| int (*valid_handler)(struct nl_msg *, void *), |
| void *valid_data) |
| { |
| return send_and_recv(drv->global, drv->global->nl, msg, |
| valid_handler, valid_data); |
| } |
| |
| |
| struct family_data { |
| const char *group; |
| int id; |
| }; |
| |
| |
| static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss) |
| { |
| if (bss->wdev_id_set) |
| NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); |
| else |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); |
| return 0; |
| |
| nla_put_failure: |
| return -1; |
| } |
| |
| |
| static int family_handler(struct nl_msg *msg, void *arg) |
| { |
| struct family_data *res = arg; |
| struct nlattr *tb[CTRL_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *mcgrp; |
| int i; |
| |
| nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| if (!tb[CTRL_ATTR_MCAST_GROUPS]) |
| return NL_SKIP; |
| |
| nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) { |
| struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1]; |
| nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp), |
| nla_len(mcgrp), NULL); |
| if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] || |
| !tb2[CTRL_ATTR_MCAST_GRP_ID] || |
| os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]), |
| res->group, |
| nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0) |
| continue; |
| res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]); |
| break; |
| }; |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int nl_get_multicast_id(struct nl80211_global *global, |
| const char *family, const char *group) |
| { |
| struct nl_msg *msg; |
| int ret = -1; |
| struct family_data res = { group, -ENOENT }; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"), |
| 0, 0, CTRL_CMD_GETFAMILY, 0); |
| NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family); |
| |
| ret = send_and_recv_msgs_global(global, msg, family_handler, &res); |
| msg = NULL; |
| if (ret == 0) |
| ret = res.id; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, |
| struct nl_msg *msg, int flags, uint8_t cmd) |
| { |
| return genlmsg_put(msg, 0, 0, drv->global->nl80211_id, |
| 0, flags, cmd, 0); |
| } |
| |
| |
| struct wiphy_idx_data { |
| int wiphy_idx; |
| enum nl80211_iftype nlmode; |
| u8 *macaddr; |
| }; |
| |
| |
| static int netdev_info_handler(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct wiphy_idx_data *info = arg; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| if (tb[NL80211_ATTR_WIPHY]) |
| info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]); |
| |
| if (tb[NL80211_ATTR_IFTYPE]) |
| info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]); |
| |
| if (tb[NL80211_ATTR_MAC] && info->macaddr) |
| os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]), |
| ETH_ALEN); |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int nl80211_get_wiphy_index(struct i802_bss *bss) |
| { |
| struct nl_msg *msg; |
| struct wiphy_idx_data data = { |
| .wiphy_idx = -1, |
| .macaddr = NULL, |
| }; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return NL80211_IFTYPE_UNSPECIFIED; |
| |
| nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); |
| |
| if (nl80211_set_iface_id(msg, bss) < 0) |
| goto nla_put_failure; |
| |
| if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) |
| return data.wiphy_idx; |
| msg = NULL; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -1; |
| } |
| |
| |
| static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss) |
| { |
| struct nl_msg *msg; |
| struct wiphy_idx_data data = { |
| .nlmode = NL80211_IFTYPE_UNSPECIFIED, |
| .macaddr = NULL, |
| }; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); |
| |
| if (nl80211_set_iface_id(msg, bss) < 0) |
| goto nla_put_failure; |
| |
| if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0) |
| return data.nlmode; |
| msg = NULL; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return NL80211_IFTYPE_UNSPECIFIED; |
| } |
| |
| |
| static int nl80211_get_macaddr(struct i802_bss *bss) |
| { |
| struct nl_msg *msg; |
| struct wiphy_idx_data data = { |
| .macaddr = bss->addr, |
| }; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return NL80211_IFTYPE_UNSPECIFIED; |
| |
| nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE); |
| if (nl80211_set_iface_id(msg, bss) < 0) |
| goto nla_put_failure; |
| |
| return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return NL80211_IFTYPE_UNSPECIFIED; |
| } |
| |
| |
| static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, |
| struct nl80211_wiphy_data *w) |
| { |
| struct nl_msg *msg; |
| int ret = -1; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx); |
| |
| ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Register beacons command " |
| "failed: ret=%d (%s)", |
| ret, strerror(-ret)); |
| goto nla_put_failure; |
| } |
| ret = 0; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle) |
| { |
| struct nl80211_wiphy_data *w = eloop_ctx; |
| int res; |
| |
| wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available"); |
| |
| res = nl_recvmsgs(handle, w->nl_cb); |
| if (res) { |
| wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", |
| __func__, res); |
| } |
| } |
| |
| |
| static int process_beacon_event(struct nl_msg *msg, void *arg) |
| { |
| struct nl80211_wiphy_data *w = arg; |
| struct wpa_driver_nl80211_data *drv; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| union wpa_event_data event; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| if (gnlh->cmd != NL80211_CMD_FRAME) { |
| wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)", |
| gnlh->cmd); |
| return NL_SKIP; |
| } |
| |
| if (!tb[NL80211_ATTR_FRAME]) |
| return NL_SKIP; |
| |
| dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data, |
| wiphy_list) { |
| os_memset(&event, 0, sizeof(event)); |
| event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]); |
| event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]); |
| wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); |
| } |
| |
| return NL_SKIP; |
| } |
| |
| |
| static struct nl80211_wiphy_data * |
| nl80211_get_wiphy_data_ap(struct i802_bss *bss) |
| { |
| static DEFINE_DL_LIST(nl80211_wiphys); |
| struct nl80211_wiphy_data *w; |
| int wiphy_idx, found = 0; |
| struct i802_bss *tmp_bss; |
| |
| if (bss->wiphy_data != NULL) |
| return bss->wiphy_data; |
| |
| wiphy_idx = nl80211_get_wiphy_index(bss); |
| |
| dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) { |
| if (w->wiphy_idx == wiphy_idx) |
| goto add; |
| } |
| |
| /* alloc new one */ |
| w = os_zalloc(sizeof(*w)); |
| if (w == NULL) |
| return NULL; |
| w->wiphy_idx = wiphy_idx; |
| dl_list_init(&w->bsss); |
| dl_list_init(&w->drvs); |
| |
| w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); |
| if (!w->nl_cb) { |
| os_free(w); |
| return NULL; |
| } |
| nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL); |
| nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event, |
| w); |
| |
| w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb, |
| "wiphy beacons"); |
| if (w->nl_beacons == NULL) { |
| os_free(w); |
| return NULL; |
| } |
| |
| if (nl80211_register_beacons(bss->drv, w)) { |
| nl_destroy_handles(&w->nl_beacons); |
| os_free(w); |
| return NULL; |
| } |
| |
| nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w); |
| |
| dl_list_add(&nl80211_wiphys, &w->list); |
| |
| add: |
| /* drv entry for this bss already there? */ |
| dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { |
| if (tmp_bss->drv == bss->drv) { |
| found = 1; |
| break; |
| } |
| } |
| /* if not add it */ |
| if (!found) |
| dl_list_add(&w->drvs, &bss->drv->wiphy_list); |
| |
| dl_list_add(&w->bsss, &bss->wiphy_list); |
| bss->wiphy_data = w; |
| return w; |
| } |
| |
| |
| static void nl80211_put_wiphy_data_ap(struct i802_bss *bss) |
| { |
| struct nl80211_wiphy_data *w = bss->wiphy_data; |
| struct i802_bss *tmp_bss; |
| int found = 0; |
| |
| if (w == NULL) |
| return; |
| bss->wiphy_data = NULL; |
| dl_list_del(&bss->wiphy_list); |
| |
| /* still any for this drv present? */ |
| dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) { |
| if (tmp_bss->drv == bss->drv) { |
| found = 1; |
| break; |
| } |
| } |
| /* if not remove it */ |
| if (!found) |
| dl_list_del(&bss->drv->wiphy_list); |
| |
| if (!dl_list_empty(&w->bsss)) |
| return; |
| |
| nl80211_destroy_eloop_handle(&w->nl_beacons); |
| |
| nl_cb_put(w->nl_cb); |
| dl_list_del(&w->list); |
| os_free(w); |
| } |
| |
| |
| static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| if (!drv->associated) |
| return -1; |
| os_memcpy(bssid, drv->bssid, ETH_ALEN); |
| return 0; |
| } |
| |
| |
| static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| if (!drv->associated) |
| return -1; |
| os_memcpy(ssid, drv->ssid, drv->ssid_len); |
| return drv->ssid_len; |
| } |
| |
| |
| static void wpa_driver_nl80211_event_newlink( |
| struct wpa_driver_nl80211_data *drv, char *ifname) |
| { |
| union wpa_event_data event; |
| |
| if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { |
| if (if_nametoindex(drv->first_bss->ifname) == 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK", |
| drv->first_bss->ifname); |
| return; |
| } |
| if (!drv->if_removed) |
| return; |
| wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event", |
| drv->first_bss->ifname); |
| drv->if_removed = 0; |
| } |
| |
| os_memset(&event, 0, sizeof(event)); |
| os_strlcpy(event.interface_status.ifname, ifname, |
| sizeof(event.interface_status.ifname)); |
| event.interface_status.ievent = EVENT_INTERFACE_ADDED; |
| wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); |
| } |
| |
| |
| static void wpa_driver_nl80211_event_dellink( |
| struct wpa_driver_nl80211_data *drv, char *ifname) |
| { |
| union wpa_event_data event; |
| |
| if (os_strcmp(drv->first_bss->ifname, ifname) == 0) { |
| if (drv->if_removed) { |
| wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s", |
| ifname); |
| return; |
| } |
| wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1", |
| ifname); |
| drv->if_removed = 1; |
| } else { |
| wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed", |
| ifname); |
| } |
| |
| os_memset(&event, 0, sizeof(event)); |
| os_strlcpy(event.interface_status.ifname, ifname, |
| sizeof(event.interface_status.ifname)); |
| event.interface_status.ievent = EVENT_INTERFACE_REMOVED; |
| wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); |
| } |
| |
| |
| static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv, |
| u8 *buf, size_t len) |
| { |
| int attrlen, rta_len; |
| struct rtattr *attr; |
| |
| attrlen = len; |
| attr = (struct rtattr *) buf; |
| |
| rta_len = RTA_ALIGN(sizeof(struct rtattr)); |
| while (RTA_OK(attr, attrlen)) { |
| if (attr->rta_type == IFLA_IFNAME) { |
| if (os_strcmp(((char *) attr) + rta_len, |
| drv->first_bss->ifname) == 0) |
| return 1; |
| else |
| break; |
| } |
| attr = RTA_NEXT(attr, attrlen); |
| } |
| |
| return 0; |
| } |
| |
| |
| static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv, |
| int ifindex, u8 *buf, size_t len) |
| { |
| if (drv->ifindex == ifindex) |
| return 1; |
| |
| if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " |
| "interface"); |
| wpa_driver_nl80211_finish_drv_init(drv, NULL, 0); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| |
| static struct wpa_driver_nl80211_data * |
| nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len) |
| { |
| struct wpa_driver_nl80211_data *drv; |
| dl_list_for_each(drv, &global->interfaces, |
| struct wpa_driver_nl80211_data, list) { |
| if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) || |
| have_ifidx(drv, idx)) |
| return drv; |
| } |
| return NULL; |
| } |
| |
| |
| static void wpa_driver_nl80211_event_rtm_newlink(void *ctx, |
| struct ifinfomsg *ifi, |
| u8 *buf, size_t len) |
| { |
| struct nl80211_global *global = ctx; |
| struct wpa_driver_nl80211_data *drv; |
| int attrlen; |
| struct rtattr *attr; |
| u32 brid = 0; |
| char namebuf[IFNAMSIZ]; |
| char ifname[IFNAMSIZ + 1]; |
| char extra[100], *pos, *end; |
| |
| drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); |
| if (!drv) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d", |
| ifi->ifi_index); |
| return; |
| } |
| |
| extra[0] = '\0'; |
| pos = extra; |
| end = pos + sizeof(extra); |
| ifname[0] = '\0'; |
| |
| attrlen = len; |
| attr = (struct rtattr *) buf; |
| while (RTA_OK(attr, attrlen)) { |
| switch (attr->rta_type) { |
| case IFLA_IFNAME: |
| if (RTA_PAYLOAD(attr) >= IFNAMSIZ) |
| break; |
| os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); |
| ifname[RTA_PAYLOAD(attr)] = '\0'; |
| break; |
| case IFLA_MASTER: |
| brid = nla_get_u32((struct nlattr *) attr); |
| pos += os_snprintf(pos, end - pos, " master=%u", brid); |
| break; |
| case IFLA_WIRELESS: |
| pos += os_snprintf(pos, end - pos, " wext"); |
| break; |
| case IFLA_OPERSTATE: |
| pos += os_snprintf(pos, end - pos, " operstate=%u", |
| nla_get_u32((struct nlattr *) attr)); |
| break; |
| case IFLA_LINKMODE: |
| pos += os_snprintf(pos, end - pos, " linkmode=%u", |
| nla_get_u32((struct nlattr *) attr)); |
| break; |
| } |
| attr = RTA_NEXT(attr, attrlen); |
| } |
| extra[sizeof(extra) - 1] = '\0'; |
| |
| wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_flags=0x%x (%s%s%s%s)", |
| ifi->ifi_index, ifname, extra, ifi->ifi_flags, |
| (ifi->ifi_flags & IFF_UP) ? "[UP]" : "", |
| (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "", |
| (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "", |
| (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : ""); |
| |
| if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) { |
| if (if_indextoname(ifi->ifi_index, namebuf) && |
| linux_iface_up(drv->global->ioctl_sock, |
| drv->first_bss->ifname) > 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " |
| "event since interface %s is up", namebuf); |
| return; |
| } |
| wpa_printf(MSG_DEBUG, "nl80211: Interface down"); |
| if (drv->ignore_if_down_event) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down " |
| "event generated by mode change"); |
| drv->ignore_if_down_event = 0; |
| } else { |
| drv->if_disabled = 1; |
| wpa_supplicant_event(drv->ctx, |
| EVENT_INTERFACE_DISABLED, NULL); |
| } |
| } |
| |
| if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) { |
| if (if_indextoname(ifi->ifi_index, namebuf) && |
| linux_iface_up(drv->global->ioctl_sock, |
| drv->first_bss->ifname) == 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " |
| "event since interface %s is down", |
| namebuf); |
| } else if (if_nametoindex(drv->first_bss->ifname) == 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " |
| "event since interface %s does not exist", |
| drv->first_bss->ifname); |
| } else if (drv->if_removed) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up " |
| "event since interface %s is marked " |
| "removed", drv->first_bss->ifname); |
| } else { |
| wpa_printf(MSG_DEBUG, "nl80211: Interface up"); |
| drv->if_disabled = 0; |
| wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, |
| NULL); |
| } |
| } |
| |
| /* |
| * Some drivers send the association event before the operup event--in |
| * this case, lifting operstate in wpa_driver_nl80211_set_operstate() |
| * fails. This will hit us when wpa_supplicant does not need to do |
| * IEEE 802.1X authentication |
| */ |
| if (drv->operstate == 1 && |
| (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP && |
| !(ifi->ifi_flags & IFF_RUNNING)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate"); |
| netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, |
| -1, IF_OPER_UP); |
| } |
| |
| if (ifname[0]) |
| wpa_driver_nl80211_event_newlink(drv, ifname); |
| |
| if (ifi->ifi_family == AF_BRIDGE && brid) { |
| /* device has been added to bridge */ |
| if_indextoname(brid, namebuf); |
| wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s", |
| brid, namebuf); |
| add_ifidx(drv, brid); |
| } |
| } |
| |
| |
| static void wpa_driver_nl80211_event_rtm_dellink(void *ctx, |
| struct ifinfomsg *ifi, |
| u8 *buf, size_t len) |
| { |
| struct nl80211_global *global = ctx; |
| struct wpa_driver_nl80211_data *drv; |
| int attrlen; |
| struct rtattr *attr; |
| u32 brid = 0; |
| char ifname[IFNAMSIZ + 1]; |
| |
| drv = nl80211_find_drv(global, ifi->ifi_index, buf, len); |
| if (!drv) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d", |
| ifi->ifi_index); |
| return; |
| } |
| |
| ifname[0] = '\0'; |
| |
| attrlen = len; |
| attr = (struct rtattr *) buf; |
| while (RTA_OK(attr, attrlen)) { |
| switch (attr->rta_type) { |
| case IFLA_IFNAME: |
| if (RTA_PAYLOAD(attr) >= IFNAMSIZ) |
| break; |
| os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr)); |
| ifname[RTA_PAYLOAD(attr)] = '\0'; |
| break; |
| case IFLA_MASTER: |
| brid = nla_get_u32((struct nlattr *) attr); |
| break; |
| } |
| attr = RTA_NEXT(attr, attrlen); |
| } |
| |
| if (ifname[0]) |
| wpa_driver_nl80211_event_dellink(drv, ifname); |
| |
| if (ifi->ifi_family == AF_BRIDGE && brid) { |
| /* device has been removed from bridge */ |
| char namebuf[IFNAMSIZ]; |
| if_indextoname(brid, namebuf); |
| wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge " |
| "%s", brid, namebuf); |
| del_ifidx(drv, brid); |
| } |
| } |
| |
| |
| static void mlme_event_auth(struct wpa_driver_nl80211_data *drv, |
| const u8 *frame, size_t len) |
| { |
| const struct ieee80211_mgmt *mgmt; |
| union wpa_event_data event; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Authenticate event"); |
| mgmt = (const struct ieee80211_mgmt *) frame; |
| if (len < 24 + sizeof(mgmt->u.auth)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Too short association event " |
| "frame"); |
| return; |
| } |
| |
| os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN); |
| os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); |
| os_memset(&event, 0, sizeof(event)); |
| os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN); |
| event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg); |
| event.auth.auth_transaction = |
| le_to_host16(mgmt->u.auth.auth_transaction); |
| event.auth.status_code = le_to_host16(mgmt->u.auth.status_code); |
| if (len > 24 + sizeof(mgmt->u.auth)) { |
| event.auth.ies = mgmt->u.auth.variable; |
| event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth); |
| } |
| |
| wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event); |
| } |
| |
| |
| static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv) |
| { |
| struct nl_msg *msg; |
| int ret; |
| struct nl80211_bss_info_arg arg; |
| |
| os_memset(&arg, 0, sizeof(arg)); |
| msg = nlmsg_alloc(); |
| if (!msg) |
| goto nla_put_failure; |
| |
| nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| |
| arg.drv = drv; |
| ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); |
| msg = NULL; |
| if (ret == 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the " |
| "associated BSS from scan results: %u MHz", |
| arg.assoc_freq); |
| if (arg.assoc_freq) |
| drv->assoc_freq = arg.assoc_freq; |
| return drv->assoc_freq; |
| } |
| wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " |
| "(%s)", ret, strerror(-ret)); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return drv->assoc_freq; |
| } |
| |
| |
| static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv, |
| const u8 *frame, size_t len) |
| { |
| const struct ieee80211_mgmt *mgmt; |
| union wpa_event_data event; |
| u16 status; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Associate event"); |
| mgmt = (const struct ieee80211_mgmt *) frame; |
| if (len < 24 + sizeof(mgmt->u.assoc_resp)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Too short association event " |
| "frame"); |
| return; |
| } |
| |
| status = le_to_host16(mgmt->u.assoc_resp.status_code); |
| if (status != WLAN_STATUS_SUCCESS) { |
| os_memset(&event, 0, sizeof(event)); |
| event.assoc_reject.bssid = mgmt->bssid; |
| if (len > 24 + sizeof(mgmt->u.assoc_resp)) { |
| event.assoc_reject.resp_ies = |
| (u8 *) mgmt->u.assoc_resp.variable; |
| event.assoc_reject.resp_ies_len = |
| len - 24 - sizeof(mgmt->u.assoc_resp); |
| } |
| event.assoc_reject.status_code = status; |
| |
| wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); |
| return; |
| } |
| |
| drv->associated = 1; |
| os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN); |
| os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN); |
| |
| os_memset(&event, 0, sizeof(event)); |
| if (len > 24 + sizeof(mgmt->u.assoc_resp)) { |
| event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable; |
| event.assoc_info.resp_ies_len = |
| len - 24 - sizeof(mgmt->u.assoc_resp); |
| } |
| |
| event.assoc_info.freq = drv->assoc_freq; |
| |
| wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); |
| } |
| |
| |
| static void mlme_event_connect(struct wpa_driver_nl80211_data *drv, |
| enum nl80211_commands cmd, struct nlattr *status, |
| struct nlattr *addr, struct nlattr *req_ie, |
| struct nlattr *resp_ie) |
| { |
| union wpa_event_data event; |
| |
| if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { |
| /* |
| * Avoid reporting two association events that would confuse |
| * the core code. |
| */ |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) " |
| "when using userspace SME", cmd); |
| return; |
| } |
| |
| if (cmd == NL80211_CMD_CONNECT) |
| wpa_printf(MSG_DEBUG, "nl80211: Connect event"); |
| else if (cmd == NL80211_CMD_ROAM) |
| wpa_printf(MSG_DEBUG, "nl80211: Roam event"); |
| |
| os_memset(&event, 0, sizeof(event)); |
| if (cmd == NL80211_CMD_CONNECT && |
| nla_get_u16(status) != WLAN_STATUS_SUCCESS) { |
| if (addr) |
| event.assoc_reject.bssid = nla_data(addr); |
| if (resp_ie) { |
| event.assoc_reject.resp_ies = nla_data(resp_ie); |
| event.assoc_reject.resp_ies_len = nla_len(resp_ie); |
| } |
| event.assoc_reject.status_code = nla_get_u16(status); |
| wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event); |
| return; |
| } |
| |
| drv->associated = 1; |
| if (addr) { |
| os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN); |
| os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN); |
| } |
| |
| if (req_ie) { |
| event.assoc_info.req_ies = nla_data(req_ie); |
| event.assoc_info.req_ies_len = nla_len(req_ie); |
| } |
| if (resp_ie) { |
| event.assoc_info.resp_ies = nla_data(resp_ie); |
| event.assoc_info.resp_ies_len = nla_len(resp_ie); |
| } |
| |
| event.assoc_info.freq = nl80211_get_assoc_freq(drv); |
| |
| wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event); |
| } |
| |
| |
| static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv, |
| struct nlattr *reason, struct nlattr *addr, |
| struct nlattr *by_ap) |
| { |
| union wpa_event_data data; |
| unsigned int locally_generated = by_ap == NULL; |
| |
| if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { |
| /* |
| * Avoid reporting two disassociation events that could |
| * confuse the core code. |
| */ |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " |
| "event when using userspace SME"); |
| return; |
| } |
| |
| if (drv->ignore_next_local_disconnect) { |
| drv->ignore_next_local_disconnect = 0; |
| if (locally_generated) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect " |
| "event triggered during reassociation"); |
| return; |
| } |
| wpa_printf(MSG_WARNING, "nl80211: Was expecting local " |
| "disconnect but got another disconnect " |
| "event first"); |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Disconnect event"); |
| nl80211_mark_disconnected(drv); |
| os_memset(&data, 0, sizeof(data)); |
| if (reason) |
| data.deauth_info.reason_code = nla_get_u16(reason); |
| data.deauth_info.locally_generated = by_ap == NULL; |
| wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data); |
| } |
| |
| |
| static int calculate_chan_offset(int width, int freq, int cf1, int cf2) |
| { |
| int freq1 = 0; |
| |
| switch (convert2width(width)) { |
| case CHAN_WIDTH_20_NOHT: |
| case CHAN_WIDTH_20: |
| return 0; |
| case CHAN_WIDTH_40: |
| freq1 = cf1 - 10; |
| break; |
| case CHAN_WIDTH_80: |
| freq1 = cf1 - 30; |
| break; |
| case CHAN_WIDTH_160: |
| freq1 = cf1 - 70; |
| break; |
| case CHAN_WIDTH_UNKNOWN: |
| case CHAN_WIDTH_80P80: |
| /* FIXME: implement this */ |
| return 0; |
| } |
| |
| return (abs(freq - freq1) / 20) % 2 == 0 ? 1 : -1; |
| } |
| |
| |
| static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv, |
| struct nlattr *ifindex, struct nlattr *freq, |
| struct nlattr *type, struct nlattr *bw, |
| struct nlattr *cf1, struct nlattr *cf2) |
| { |
| struct i802_bss *bss; |
| union wpa_event_data data; |
| int ht_enabled = 1; |
| int chan_offset = 0; |
| int ifidx; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Channel switch event"); |
| |
| if (!freq) |
| return; |
| |
| ifidx = nla_get_u32(ifindex); |
| for (bss = drv->first_bss; bss; bss = bss->next) |
| if (bss->ifindex == ifidx) |
| break; |
| |
| if (bss == NULL) { |
| wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring", |
| ifidx); |
| return; |
| } |
| |
| if (type) { |
| switch (nla_get_u32(type)) { |
| case NL80211_CHAN_NO_HT: |
| ht_enabled = 0; |
| break; |
| case NL80211_CHAN_HT20: |
| break; |
| case NL80211_CHAN_HT40PLUS: |
| chan_offset = 1; |
| break; |
| case NL80211_CHAN_HT40MINUS: |
| chan_offset = -1; |
| break; |
| } |
| } else if (bw && cf1) { |
| /* This can happen for example with VHT80 ch switch */ |
| chan_offset = calculate_chan_offset(nla_get_u32(bw), |
| nla_get_u32(freq), |
| nla_get_u32(cf1), |
| cf2 ? nla_get_u32(cf2) : 0); |
| } else { |
| wpa_printf(MSG_WARNING, "nl80211: Unknown secondary channel information - following channel definition calculations may fail"); |
| } |
| |
| os_memset(&data, 0, sizeof(data)); |
| data.ch_switch.freq = nla_get_u32(freq); |
| data.ch_switch.ht_enabled = ht_enabled; |
| data.ch_switch.ch_offset = chan_offset; |
| if (bw) |
| data.ch_switch.ch_width = convert2width(nla_get_u32(bw)); |
| if (cf1) |
| data.ch_switch.cf1 = nla_get_u32(cf1); |
| if (cf2) |
| data.ch_switch.cf2 = nla_get_u32(cf2); |
| |
| bss->freq = data.ch_switch.freq; |
| |
| wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data); |
| } |
| |
| |
| static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv, |
| enum nl80211_commands cmd, struct nlattr *addr) |
| { |
| union wpa_event_data event; |
| enum wpa_event_type ev; |
| |
| if (nla_len(addr) != ETH_ALEN) |
| return; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR, |
| cmd, MAC2STR((u8 *) nla_data(addr))); |
| |
| if (cmd == NL80211_CMD_AUTHENTICATE) |
| ev = EVENT_AUTH_TIMED_OUT; |
| else if (cmd == NL80211_CMD_ASSOCIATE) |
| ev = EVENT_ASSOC_TIMED_OUT; |
| else |
| return; |
| |
| os_memset(&event, 0, sizeof(event)); |
| os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN); |
| wpa_supplicant_event(drv->ctx, ev, &event); |
| } |
| |
| |
| static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv, |
| struct nlattr *freq, struct nlattr *sig, |
| const u8 *frame, size_t len) |
| { |
| const struct ieee80211_mgmt *mgmt; |
| union wpa_event_data event; |
| u16 fc, stype; |
| int ssi_signal = 0; |
| int rx_freq = 0; |
| |
| wpa_printf(MSG_MSGDUMP, "nl80211: Frame event"); |
| mgmt = (const struct ieee80211_mgmt *) frame; |
| if (len < 24) { |
| wpa_printf(MSG_DEBUG, "nl80211: Too short management frame"); |
| return; |
| } |
| |
| fc = le_to_host16(mgmt->frame_control); |
| stype = WLAN_FC_GET_STYPE(fc); |
| |
| if (sig) |
| ssi_signal = (s32) nla_get_u32(sig); |
| |
| os_memset(&event, 0, sizeof(event)); |
| if (freq) { |
| event.rx_mgmt.freq = nla_get_u32(freq); |
| rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq; |
| } |
| wpa_printf(MSG_DEBUG, |
| "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u", |
| rx_freq, ssi_signal, stype, (unsigned int) len); |
| event.rx_mgmt.frame = frame; |
| event.rx_mgmt.frame_len = len; |
| event.rx_mgmt.ssi_signal = ssi_signal; |
| wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); |
| } |
| |
| |
| static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv, |
| struct nlattr *cookie, const u8 *frame, |
| size_t len, struct nlattr *ack) |
| { |
| union wpa_event_data event; |
| const struct ieee80211_hdr *hdr; |
| u16 fc; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event"); |
| if (!is_ap_interface(drv->nlmode)) { |
| u64 cookie_val; |
| |
| if (!cookie) |
| return; |
| |
| cookie_val = nla_get_u64(cookie); |
| wpa_printf(MSG_DEBUG, "nl80211: Action TX status:" |
| " cookie=0%llx%s (ack=%d)", |
| (long long unsigned int) cookie_val, |
| cookie_val == drv->send_action_cookie ? |
| " (match)" : " (unknown)", ack != NULL); |
| if (cookie_val != drv->send_action_cookie) |
| return; |
| } |
| |
| hdr = (const struct ieee80211_hdr *) frame; |
| fc = le_to_host16(hdr->frame_control); |
| |
| os_memset(&event, 0, sizeof(event)); |
| event.tx_status.type = WLAN_FC_GET_TYPE(fc); |
| event.tx_status.stype = WLAN_FC_GET_STYPE(fc); |
| event.tx_status.dst = hdr->addr1; |
| event.tx_status.data = frame; |
| event.tx_status.data_len = len; |
| event.tx_status.ack = ack != NULL; |
| wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event); |
| } |
| |
| |
| static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv, |
| enum wpa_event_type type, |
| const u8 *frame, size_t len) |
| { |
| const struct ieee80211_mgmt *mgmt; |
| union wpa_event_data event; |
| const u8 *bssid = NULL; |
| u16 reason_code = 0; |
| |
| if (type == EVENT_DEAUTH) |
| wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event"); |
| else |
| wpa_printf(MSG_DEBUG, "nl80211: Disassociate event"); |
| |
| mgmt = (const struct ieee80211_mgmt *) frame; |
| if (len >= 24) { |
| bssid = mgmt->bssid; |
| |
| if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) && |
| !drv->associated && |
| os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 && |
| os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 && |
| os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) { |
| /* |
| * Avoid issues with some roaming cases where |
| * disconnection event for the old AP may show up after |
| * we have started connection with the new AP. |
| */ |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR, |
| MAC2STR(bssid), |
| MAC2STR(drv->auth_attempt_bssid)); |
| return; |
| } |
| |
| if (drv->associated != 0 && |
| os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 && |
| os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) { |
| /* |
| * We have presumably received this deauth as a |
| * response to a clear_state_mismatch() outgoing |
| * deauth. Don't let it take us offline! |
| */ |
| wpa_printf(MSG_DEBUG, "nl80211: Deauth received " |
| "from Unknown BSSID " MACSTR " -- ignoring", |
| MAC2STR(bssid)); |
| return; |
| } |
| } |
| |
| nl80211_mark_disconnected(drv); |
| os_memset(&event, 0, sizeof(event)); |
| |
| /* Note: Same offset for Reason Code in both frame subtypes */ |
| if (len >= 24 + sizeof(mgmt->u.deauth)) |
| reason_code = le_to_host16(mgmt->u.deauth.reason_code); |
| |
| if (type == EVENT_DISASSOC) { |
| event.disassoc_info.locally_generated = |
| !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); |
| event.disassoc_info.addr = bssid; |
| event.disassoc_info.reason_code = reason_code; |
| if (frame + len > mgmt->u.disassoc.variable) { |
| event.disassoc_info.ie = mgmt->u.disassoc.variable; |
| event.disassoc_info.ie_len = frame + len - |
| mgmt->u.disassoc.variable; |
| } |
| } else { |
| event.deauth_info.locally_generated = |
| !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN); |
| event.deauth_info.addr = bssid; |
| event.deauth_info.reason_code = reason_code; |
| if (frame + len > mgmt->u.deauth.variable) { |
| event.deauth_info.ie = mgmt->u.deauth.variable; |
| event.deauth_info.ie_len = frame + len - |
| mgmt->u.deauth.variable; |
| } |
| } |
| |
| wpa_supplicant_event(drv->ctx, type, &event); |
| } |
| |
| |
| static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv, |
| enum wpa_event_type type, |
| const u8 *frame, size_t len) |
| { |
| const struct ieee80211_mgmt *mgmt; |
| union wpa_event_data event; |
| u16 reason_code = 0; |
| |
| if (type == EVENT_UNPROT_DEAUTH) |
| wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event"); |
| else |
| wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event"); |
| |
| if (len < 24) |
| return; |
| |
| mgmt = (const struct ieee80211_mgmt *) frame; |
| |
| os_memset(&event, 0, sizeof(event)); |
| /* Note: Same offset for Reason Code in both frame subtypes */ |
| if (len >= 24 + sizeof(mgmt->u.deauth)) |
| reason_code = le_to_host16(mgmt->u.deauth.reason_code); |
| |
| if (type == EVENT_UNPROT_DISASSOC) { |
| event.unprot_disassoc.sa = mgmt->sa; |
| event.unprot_disassoc.da = mgmt->da; |
| event.unprot_disassoc.reason_code = reason_code; |
| } else { |
| event.unprot_deauth.sa = mgmt->sa; |
| event.unprot_deauth.da = mgmt->da; |
| event.unprot_deauth.reason_code = reason_code; |
| } |
| |
| wpa_supplicant_event(drv->ctx, type, &event); |
| } |
| |
| |
| static void mlme_event(struct i802_bss *bss, |
| enum nl80211_commands cmd, struct nlattr *frame, |
| struct nlattr *addr, struct nlattr *timed_out, |
| struct nlattr *freq, struct nlattr *ack, |
| struct nlattr *cookie, struct nlattr *sig) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| const u8 *data; |
| size_t len; |
| |
| if (timed_out && addr) { |
| mlme_timeout_event(drv, cmd, addr); |
| return; |
| } |
| |
| if (frame == NULL) { |
| wpa_printf(MSG_DEBUG, |
| "nl80211: MLME event %d (%s) without frame data", |
| cmd, nl80211_command_to_string(cmd)); |
| return; |
| } |
| |
| data = nla_data(frame); |
| len = nla_len(frame); |
| if (len < 4 + 2 * ETH_ALEN) { |
| wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" |
| MACSTR ") - too short", |
| cmd, nl80211_command_to_string(cmd), bss->ifname, |
| MAC2STR(bss->addr)); |
| return; |
| } |
| wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR |
| ") A1=" MACSTR " A2=" MACSTR, cmd, |
| nl80211_command_to_string(cmd), bss->ifname, |
| MAC2STR(bss->addr), MAC2STR(data + 4), |
| MAC2STR(data + 4 + ETH_ALEN)); |
| if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) && |
| os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 && |
| os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) { |
| wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event " |
| "for foreign address", bss->ifname); |
| return; |
| } |
| wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame", |
| nla_data(frame), nla_len(frame)); |
| |
| switch (cmd) { |
| case NL80211_CMD_AUTHENTICATE: |
| mlme_event_auth(drv, nla_data(frame), nla_len(frame)); |
| break; |
| case NL80211_CMD_ASSOCIATE: |
| mlme_event_assoc(drv, nla_data(frame), nla_len(frame)); |
| break; |
| case NL80211_CMD_DEAUTHENTICATE: |
| mlme_event_deauth_disassoc(drv, EVENT_DEAUTH, |
| nla_data(frame), nla_len(frame)); |
| break; |
| case NL80211_CMD_DISASSOCIATE: |
| mlme_event_deauth_disassoc(drv, EVENT_DISASSOC, |
| nla_data(frame), nla_len(frame)); |
| break; |
| case NL80211_CMD_FRAME: |
| mlme_event_mgmt(drv, freq, sig, nla_data(frame), |
| nla_len(frame)); |
| break; |
| case NL80211_CMD_FRAME_TX_STATUS: |
| mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame), |
| nla_len(frame), ack); |
| break; |
| case NL80211_CMD_UNPROT_DEAUTHENTICATE: |
| mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH, |
| nla_data(frame), nla_len(frame)); |
| break; |
| case NL80211_CMD_UNPROT_DISASSOCIATE: |
| mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC, |
| nla_data(frame), nla_len(frame)); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| |
| static void mlme_event_michael_mic_failure(struct i802_bss *bss, |
| struct nlattr *tb[]) |
| { |
| union wpa_event_data data; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure"); |
| os_memset(&data, 0, sizeof(data)); |
| if (tb[NL80211_ATTR_MAC]) { |
| wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address", |
| nla_data(tb[NL80211_ATTR_MAC]), |
| nla_len(tb[NL80211_ATTR_MAC])); |
| data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]); |
| } |
| if (tb[NL80211_ATTR_KEY_SEQ]) { |
| wpa_hexdump(MSG_DEBUG, "nl80211: TSC", |
| nla_data(tb[NL80211_ATTR_KEY_SEQ]), |
| nla_len(tb[NL80211_ATTR_KEY_SEQ])); |
| } |
| if (tb[NL80211_ATTR_KEY_TYPE]) { |
| enum nl80211_key_type key_type = |
| nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]); |
| wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type); |
| if (key_type == NL80211_KEYTYPE_PAIRWISE) |
| data.michael_mic_failure.unicast = 1; |
| } else |
| data.michael_mic_failure.unicast = 1; |
| |
| if (tb[NL80211_ATTR_KEY_IDX]) { |
| u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]); |
| wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id); |
| } |
| |
| wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data); |
| } |
| |
| |
| static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv, |
| struct nlattr *tb[]) |
| { |
| if (tb[NL80211_ATTR_MAC] == NULL) { |
| wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined " |
| "event"); |
| return; |
| } |
| os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); |
| |
| drv->associated = 1; |
| wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined", |
| MAC2STR(drv->bssid)); |
| |
| wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); |
| } |
| |
| |
| static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv, |
| int cancel_event, struct nlattr *tb[]) |
| { |
| unsigned int freq, chan_type, duration; |
| union wpa_event_data data; |
| u64 cookie; |
| |
| if (tb[NL80211_ATTR_WIPHY_FREQ]) |
| freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); |
| else |
| freq = 0; |
| |
| if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) |
| chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); |
| else |
| chan_type = 0; |
| |
| if (tb[NL80211_ATTR_DURATION]) |
| duration = nla_get_u32(tb[NL80211_ATTR_DURATION]); |
| else |
| duration = 0; |
| |
| if (tb[NL80211_ATTR_COOKIE]) |
| cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); |
| else |
| cookie = 0; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d " |
| "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))", |
| cancel_event, freq, chan_type, duration, |
| (long long unsigned int) cookie, |
| cookie == drv->remain_on_chan_cookie ? "match" : "unknown"); |
| |
| if (cookie != drv->remain_on_chan_cookie) |
| return; /* not for us */ |
| |
| if (cancel_event) |
| drv->pending_remain_on_chan = 0; |
| |
| os_memset(&data, 0, sizeof(data)); |
| data.remain_on_channel.freq = freq; |
| data.remain_on_channel.duration = duration; |
| wpa_supplicant_event(drv->ctx, cancel_event ? |
| EVENT_CANCEL_REMAIN_ON_CHANNEL : |
| EVENT_REMAIN_ON_CHANNEL, &data); |
| } |
| |
| |
| static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv, |
| struct nlattr *tb[]) |
| { |
| union wpa_event_data data; |
| |
| os_memset(&data, 0, sizeof(data)); |
| |
| if (tb[NL80211_ATTR_IE]) { |
| data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]); |
| data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]); |
| } |
| |
| if (tb[NL80211_ATTR_IE_RIC]) { |
| data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]); |
| data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]); |
| } |
| |
| if (tb[NL80211_ATTR_MAC]) |
| os_memcpy(data.ft_ies.target_ap, |
| nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); |
| |
| wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR, |
| MAC2STR(data.ft_ies.target_ap)); |
| |
| wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data); |
| } |
| |
| |
| static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted, |
| struct nlattr *tb[]) |
| { |
| union wpa_event_data event; |
| struct nlattr *nl; |
| int rem; |
| struct scan_info *info; |
| #define MAX_REPORT_FREQS 50 |
| int freqs[MAX_REPORT_FREQS]; |
| int num_freqs = 0; |
| |
| if (drv->scan_for_auth) { |
| drv->scan_for_auth = 0; |
| wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing " |
| "cfg80211 BSS entry"); |
| wpa_driver_nl80211_authenticate_retry(drv); |
| return; |
| } |
| |
| os_memset(&event, 0, sizeof(event)); |
| info = &event.scan_info; |
| info->aborted = aborted; |
| |
| if (tb[NL80211_ATTR_SCAN_SSIDS]) { |
| nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) { |
| struct wpa_driver_scan_ssid *s = |
| &info->ssids[info->num_ssids]; |
| s->ssid = nla_data(nl); |
| s->ssid_len = nla_len(nl); |
| wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'", |
| wpa_ssid_txt(s->ssid, s->ssid_len)); |
| info->num_ssids++; |
| if (info->num_ssids == WPAS_MAX_SCAN_SSIDS) |
| break; |
| } |
| } |
| if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) { |
| char msg[200], *pos, *end; |
| int res; |
| |
| pos = msg; |
| end = pos + sizeof(msg); |
| *pos = '\0'; |
| |
| nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem) |
| { |
| freqs[num_freqs] = nla_get_u32(nl); |
| res = os_snprintf(pos, end - pos, " %d", |
| freqs[num_freqs]); |
| if (res > 0 && end - pos > res) |
| pos += res; |
| num_freqs++; |
| if (num_freqs == MAX_REPORT_FREQS - 1) |
| break; |
| } |
| info->freqs = freqs; |
| info->num_freqs = num_freqs; |
| wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s", |
| msg); |
| } |
| wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event); |
| } |
| |
| |
| static int get_link_signal(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; |
| static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = { |
| [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 }, |
| [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 }, |
| }; |
| struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; |
| static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = { |
| [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 }, |
| [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 }, |
| [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG }, |
| [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, |
| }; |
| struct wpa_signal_info *sig_change = arg; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| if (!tb[NL80211_ATTR_STA_INFO] || |
| nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, |
| tb[NL80211_ATTR_STA_INFO], policy)) |
| return NL_SKIP; |
| if (!sinfo[NL80211_STA_INFO_SIGNAL]) |
| return NL_SKIP; |
| |
| sig_change->current_signal = |
| (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); |
| |
| if (sinfo[NL80211_STA_INFO_SIGNAL_AVG]) |
| sig_change->avg_signal = |
| (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]); |
| else |
| sig_change->avg_signal = 0; |
| |
| if (sinfo[NL80211_STA_INFO_TX_BITRATE]) { |
| if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, |
| sinfo[NL80211_STA_INFO_TX_BITRATE], |
| rate_policy)) { |
| sig_change->current_txrate = 0; |
| } else { |
| if (rinfo[NL80211_RATE_INFO_BITRATE]) { |
| sig_change->current_txrate = |
| nla_get_u16(rinfo[ |
| NL80211_RATE_INFO_BITRATE]) * 100; |
| } |
| } |
| } |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, |
| struct wpa_signal_info *sig) |
| { |
| struct nl_msg *msg; |
| |
| sig->current_signal = -9999; |
| sig->current_txrate = 0; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); |
| |
| return send_and_recv_msgs(drv, msg, get_link_signal, sig); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int get_link_noise(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; |
| static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { |
| [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, |
| [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, |
| }; |
| struct wpa_signal_info *sig_change = arg; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| if (!tb[NL80211_ATTR_SURVEY_INFO]) { |
| wpa_printf(MSG_DEBUG, "nl80211: survey data missing!"); |
| return NL_SKIP; |
| } |
| |
| if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, |
| tb[NL80211_ATTR_SURVEY_INFO], |
| survey_policy)) { |
| wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested " |
| "attributes!"); |
| return NL_SKIP; |
| } |
| |
| if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) |
| return NL_SKIP; |
| |
| if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != |
| sig_change->frequency) |
| return NL_SKIP; |
| |
| if (!sinfo[NL80211_SURVEY_INFO_NOISE]) |
| return NL_SKIP; |
| |
| sig_change->current_noise = |
| (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, |
| struct wpa_signal_info *sig_change) |
| { |
| struct nl_msg *msg; |
| |
| sig_change->current_noise = 9999; |
| sig_change->frequency = drv->assoc_freq; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| |
| return send_and_recv_msgs(drv, msg, get_link_noise, sig_change); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int get_noise_for_scan_results(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; |
| static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { |
| [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, |
| [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, |
| }; |
| struct wpa_scan_results *scan_results = arg; |
| struct wpa_scan_res *scan_res; |
| size_t i; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| if (!tb[NL80211_ATTR_SURVEY_INFO]) { |
| wpa_printf(MSG_DEBUG, "nl80211: Survey data missing"); |
| return NL_SKIP; |
| } |
| |
| if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, |
| tb[NL80211_ATTR_SURVEY_INFO], |
| survey_policy)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested " |
| "attributes"); |
| return NL_SKIP; |
| } |
| |
| if (!sinfo[NL80211_SURVEY_INFO_NOISE]) |
| return NL_SKIP; |
| |
| if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) |
| return NL_SKIP; |
| |
| for (i = 0; i < scan_results->num; ++i) { |
| scan_res = scan_results->res[i]; |
| if (!scan_res) |
| continue; |
| if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) != |
| scan_res->freq) |
| continue; |
| if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID)) |
| continue; |
| scan_res->noise = (s8) |
| nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); |
| scan_res->flags &= ~WPA_SCAN_NOISE_INVALID; |
| } |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int nl80211_get_noise_for_scan_results( |
| struct wpa_driver_nl80211_data *drv, |
| struct wpa_scan_results *scan_res) |
| { |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| |
| return send_and_recv_msgs(drv, msg, get_noise_for_scan_results, |
| scan_res); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv, |
| struct nlattr *tb[]) |
| { |
| static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { |
| [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, |
| [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 }, |
| [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, |
| [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 }, |
| }; |
| struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1]; |
| enum nl80211_cqm_rssi_threshold_event event; |
| union wpa_event_data ed; |
| struct wpa_signal_info sig; |
| int res; |
| |
| if (tb[NL80211_ATTR_CQM] == NULL || |
| nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM], |
| cqm_policy)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event"); |
| return; |
| } |
| |
| os_memset(&ed, 0, sizeof(ed)); |
| |
| if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) { |
| if (!tb[NL80211_ATTR_MAC]) |
| return; |
| os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]), |
| ETH_ALEN); |
| wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed); |
| return; |
| } |
| |
| if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL) |
| return; |
| event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]); |
| |
| if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) { |
| wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " |
| "event: RSSI high"); |
| ed.signal_change.above_threshold = 1; |
| } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) { |
| wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor " |
| "event: RSSI low"); |
| ed.signal_change.above_threshold = 0; |
| } else |
| return; |
| |
| res = nl80211_get_link_signal(drv, &sig); |
| if (res == 0) { |
| ed.signal_change.current_signal = sig.current_signal; |
| ed.signal_change.current_txrate = sig.current_txrate; |
| wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d", |
| sig.current_signal, sig.current_txrate); |
| } |
| |
| res = nl80211_get_link_noise(drv, &sig); |
| if (res == 0) { |
| ed.signal_change.current_noise = sig.current_noise; |
| wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm", |
| sig.current_noise); |
| } |
| |
| wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed); |
| } |
| |
| |
| static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv, |
| struct nlattr **tb) |
| { |
| u8 *addr; |
| union wpa_event_data data; |
| |
| if (tb[NL80211_ATTR_MAC] == NULL) |
| return; |
| addr = nla_data(tb[NL80211_ATTR_MAC]); |
| wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr)); |
| |
| if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { |
| u8 *ies = NULL; |
| size_t ies_len = 0; |
| if (tb[NL80211_ATTR_IE]) { |
| ies = nla_data(tb[NL80211_ATTR_IE]); |
| ies_len = nla_len(tb[NL80211_ATTR_IE]); |
| } |
| wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len); |
| drv_event_assoc(drv->ctx, addr, ies, ies_len, 0); |
| return; |
| } |
| |
| if (drv->nlmode != NL80211_IFTYPE_ADHOC) |
| return; |
| |
| os_memset(&data, 0, sizeof(data)); |
| os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN); |
| wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data); |
| } |
| |
| |
| static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv, |
| struct nlattr **tb) |
| { |
| u8 *addr; |
| union wpa_event_data data; |
| |
| if (tb[NL80211_ATTR_MAC] == NULL) |
| return; |
| addr = nla_data(tb[NL80211_ATTR_MAC]); |
| wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR, |
| MAC2STR(addr)); |
| |
| if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) { |
| drv_event_disassoc(drv->ctx, addr); |
| return; |
| } |
| |
| if (drv->nlmode != NL80211_IFTYPE_ADHOC) |
| return; |
| |
| os_memset(&data, 0, sizeof(data)); |
| os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN); |
| wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data); |
| } |
| |
| |
| static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv, |
| struct nlattr **tb) |
| { |
| struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA]; |
| static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = { |
| [NL80211_REKEY_DATA_KEK] = { |
| .minlen = NL80211_KEK_LEN, |
| .maxlen = NL80211_KEK_LEN, |
| }, |
| [NL80211_REKEY_DATA_KCK] = { |
| .minlen = NL80211_KCK_LEN, |
| .maxlen = NL80211_KCK_LEN, |
| }, |
| [NL80211_REKEY_DATA_REPLAY_CTR] = { |
| .minlen = NL80211_REPLAY_CTR_LEN, |
| .maxlen = NL80211_REPLAY_CTR_LEN, |
| }, |
| }; |
| union wpa_event_data data; |
| |
| if (!tb[NL80211_ATTR_MAC]) |
| return; |
| if (!tb[NL80211_ATTR_REKEY_DATA]) |
| return; |
| if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA, |
| tb[NL80211_ATTR_REKEY_DATA], rekey_policy)) |
| return; |
| if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]) |
| return; |
| |
| os_memset(&data, 0, sizeof(data)); |
| data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]); |
| wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR, |
| MAC2STR(data.driver_gtk_rekey.bssid)); |
| data.driver_gtk_rekey.replay_ctr = |
| nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]); |
| wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter", |
| data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN); |
| wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data); |
| } |
| |
| |
| static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv, |
| struct nlattr **tb) |
| { |
| struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE]; |
| static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = { |
| [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 }, |
| [NL80211_PMKSA_CANDIDATE_BSSID] = { |
| .minlen = ETH_ALEN, |
| .maxlen = ETH_ALEN, |
| }, |
| [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG }, |
| }; |
| union wpa_event_data data; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event"); |
| |
| if (!tb[NL80211_ATTR_PMKSA_CANDIDATE]) |
| return; |
| if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE, |
| tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy)) |
| return; |
| if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] || |
| !cand[NL80211_PMKSA_CANDIDATE_BSSID]) |
| return; |
| |
| os_memset(&data, 0, sizeof(data)); |
| os_memcpy(data.pmkid_candidate.bssid, |
| nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN); |
| data.pmkid_candidate.index = |
| nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]); |
| data.pmkid_candidate.preauth = |
| cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL; |
| wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data); |
| } |
| |
| |
| static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv, |
| struct nlattr **tb) |
| { |
| union wpa_event_data data; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Probe client event"); |
| |
| if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK]) |
| return; |
| |
| os_memset(&data, 0, sizeof(data)); |
| os_memcpy(data.client_poll.addr, |
| nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); |
| |
| wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data); |
| } |
| |
| |
| static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv, |
| struct nlattr **tb) |
| { |
| union wpa_event_data data; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event"); |
| |
| if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION]) |
| return; |
| |
| os_memset(&data, 0, sizeof(data)); |
| os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); |
| switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) { |
| case NL80211_TDLS_SETUP: |
| wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer " |
| MACSTR, MAC2STR(data.tdls.peer)); |
| data.tdls.oper = TDLS_REQUEST_SETUP; |
| break; |
| case NL80211_TDLS_TEARDOWN: |
| wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer " |
| MACSTR, MAC2STR(data.tdls.peer)); |
| data.tdls.oper = TDLS_REQUEST_TEARDOWN; |
| break; |
| default: |
| wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione " |
| "event"); |
| return; |
| } |
| if (tb[NL80211_ATTR_REASON_CODE]) { |
| data.tdls.reason_code = |
| nla_get_u16(tb[NL80211_ATTR_REASON_CODE]); |
| } |
| |
| wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data); |
| } |
| |
| |
| static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv, |
| struct nlattr **tb) |
| { |
| wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL); |
| } |
| |
| |
| static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv, |
| struct nlattr **tb) |
| { |
| union wpa_event_data data; |
| u32 reason; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Connect failed event"); |
| |
| if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON]) |
| return; |
| |
| os_memset(&data, 0, sizeof(data)); |
| os_memcpy(data.connect_failed_reason.addr, |
| nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN); |
| |
| reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]); |
| switch (reason) { |
| case NL80211_CONN_FAIL_MAX_CLIENTS: |
| wpa_printf(MSG_DEBUG, "nl80211: Max client reached"); |
| data.connect_failed_reason.code = MAX_CLIENT_REACHED; |
| break; |
| case NL80211_CONN_FAIL_BLOCKED_CLIENT: |
| wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR |
| " tried to connect", |
| MAC2STR(data.connect_failed_reason.addr)); |
| data.connect_failed_reason.code = BLOCKED_CLIENT; |
| break; |
| default: |
| wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason " |
| "%u", reason); |
| return; |
| } |
| |
| wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data); |
| } |
| |
| |
| static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv, |
| struct nlattr **tb) |
| { |
| union wpa_event_data data; |
| enum nl80211_radar_event event_type; |
| |
| if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT]) |
| return; |
| |
| os_memset(&data, 0, sizeof(data)); |
| data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]); |
| event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]); |
| |
| /* Check HT params */ |
| if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
| data.dfs_event.ht_enabled = 1; |
| data.dfs_event.chan_offset = 0; |
| |
| switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) { |
| case NL80211_CHAN_NO_HT: |
| data.dfs_event.ht_enabled = 0; |
| break; |
| case NL80211_CHAN_HT20: |
| break; |
| case NL80211_CHAN_HT40PLUS: |
| data.dfs_event.chan_offset = 1; |
| break; |
| case NL80211_CHAN_HT40MINUS: |
| data.dfs_event.chan_offset = -1; |
| break; |
| } |
| } |
| |
| /* Get VHT params */ |
| if (tb[NL80211_ATTR_CHANNEL_WIDTH]) |
| data.dfs_event.chan_width = |
| convert2width(nla_get_u32( |
| tb[NL80211_ATTR_CHANNEL_WIDTH])); |
| if (tb[NL80211_ATTR_CENTER_FREQ1]) |
| data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); |
| if (tb[NL80211_ATTR_CENTER_FREQ2]) |
| data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); |
| |
| wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz", |
| data.dfs_event.freq, data.dfs_event.ht_enabled, |
| data.dfs_event.chan_offset, data.dfs_event.chan_width, |
| data.dfs_event.cf1, data.dfs_event.cf2); |
| |
| switch (event_type) { |
| case NL80211_RADAR_DETECTED: |
| wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data); |
| break; |
| case NL80211_RADAR_CAC_FINISHED: |
| wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data); |
| break; |
| case NL80211_RADAR_CAC_ABORTED: |
| wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data); |
| break; |
| case NL80211_RADAR_NOP_FINISHED: |
| wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data); |
| break; |
| default: |
| wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d " |
| "received", event_type); |
| break; |
| } |
| } |
| |
| |
| static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb, |
| int wds) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| union wpa_event_data event; |
| |
| if (!tb[NL80211_ATTR_MAC]) |
| return; |
| |
| os_memset(&event, 0, sizeof(event)); |
| event.rx_from_unknown.bssid = bss->addr; |
| event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]); |
| event.rx_from_unknown.wds = wds; |
| |
| wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); |
| } |
| |
| |
| static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv, |
| const u8 *data, size_t len) |
| { |
| u32 i, count; |
| union wpa_event_data event; |
| struct wpa_freq_range *range = NULL; |
| const struct qca_avoid_freq_list *freq_range; |
| |
| freq_range = (const struct qca_avoid_freq_list *) data; |
| if (len < sizeof(freq_range->count)) |
| return; |
| |
| count = freq_range->count; |
| if (len < sizeof(freq_range->count) + |
| count * sizeof(struct qca_avoid_freq_range)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)", |
| (unsigned int) len); |
| return; |
| } |
| |
| if (count > 0) { |
| range = os_calloc(count, sizeof(struct wpa_freq_range)); |
| if (range == NULL) |
| return; |
| } |
| |
| os_memset(&event, 0, sizeof(event)); |
| for (i = 0; i < count; i++) { |
| unsigned int idx = event.freq_range.num; |
| range[idx].min = freq_range->range[i].start_freq; |
| range[idx].max = freq_range->range[i].end_freq; |
| wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u", |
| range[idx].min, range[idx].max); |
| if (range[idx].min > range[idx].max) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range"); |
| continue; |
| } |
| event.freq_range.num++; |
| } |
| event.freq_range.range = range; |
| |
| wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event); |
| |
| os_free(range); |
| } |
| |
| |
| static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv, |
| u32 subcmd, u8 *data, size_t len) |
| { |
| switch (subcmd) { |
| case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY: |
| qca_nl80211_avoid_freq(drv, data, len); |
| break; |
| default: |
| wpa_printf(MSG_DEBUG, |
| "nl80211: Ignore unsupported QCA vendor event %u", |
| subcmd); |
| break; |
| } |
| } |
| |
| |
| static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv, |
| struct nlattr **tb) |
| { |
| u32 vendor_id, subcmd, wiphy = 0; |
| int wiphy_idx; |
| u8 *data = NULL; |
| size_t len = 0; |
| |
| if (!tb[NL80211_ATTR_VENDOR_ID] || |
| !tb[NL80211_ATTR_VENDOR_SUBCMD]) |
| return; |
| |
| vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]); |
| subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]); |
| |
| if (tb[NL80211_ATTR_WIPHY]) |
| wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u", |
| wiphy, vendor_id, subcmd); |
| |
| if (tb[NL80211_ATTR_VENDOR_DATA]) { |
| data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]); |
| len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]); |
| wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len); |
| } |
| |
| wiphy_idx = nl80211_get_wiphy_index(drv->first_bss); |
| if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) { |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)", |
| wiphy, wiphy_idx); |
| return; |
| } |
| |
| switch (vendor_id) { |
| case OUI_QCA: |
| nl80211_vendor_event_qca(drv, subcmd, data, len); |
| break; |
| default: |
| wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event"); |
| break; |
| } |
| } |
| |
| |
| static void do_process_drv_event(struct i802_bss *bss, int cmd, |
| struct nlattr **tb) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| union wpa_event_data data; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s", |
| cmd, nl80211_command_to_string(cmd), bss->ifname); |
| |
| if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED && |
| (cmd == NL80211_CMD_NEW_SCAN_RESULTS || |
| cmd == NL80211_CMD_SCAN_ABORTED)) { |
| wpa_driver_nl80211_set_mode(drv->first_bss, |
| drv->ap_scan_as_station); |
| drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; |
| } |
| |
| switch (cmd) { |
| case NL80211_CMD_TRIGGER_SCAN: |
| wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger"); |
| drv->scan_state = SCAN_STARTED; |
| wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL); |
| break; |
| case NL80211_CMD_START_SCHED_SCAN: |
| wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started"); |
| drv->scan_state = SCHED_SCAN_STARTED; |
| break; |
| case NL80211_CMD_SCHED_SCAN_STOPPED: |
| wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped"); |
| drv->scan_state = SCHED_SCAN_STOPPED; |
| wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL); |
| break; |
| case NL80211_CMD_NEW_SCAN_RESULTS: |
| wpa_dbg(drv->ctx, MSG_DEBUG, |
| "nl80211: New scan results available"); |
| drv->scan_state = SCAN_COMPLETED; |
| drv->scan_complete_events = 1; |
| eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, |
| drv->ctx); |
| send_scan_event(drv, 0, tb); |
| break; |
| case NL80211_CMD_SCHED_SCAN_RESULTS: |
| wpa_dbg(drv->ctx, MSG_DEBUG, |
| "nl80211: New sched scan results available"); |
| drv->scan_state = SCHED_SCAN_RESULTS; |
| send_scan_event(drv, 0, tb); |
| break; |
| case NL80211_CMD_SCAN_ABORTED: |
| wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted"); |
| drv->scan_state = SCAN_ABORTED; |
| /* |
| * Need to indicate that scan results are available in order |
| * not to make wpa_supplicant stop its scanning. |
| */ |
| eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, |
| drv->ctx); |
| send_scan_event(drv, 1, tb); |
| break; |
| case NL80211_CMD_AUTHENTICATE: |
| case NL80211_CMD_ASSOCIATE: |
| case NL80211_CMD_DEAUTHENTICATE: |
| case NL80211_CMD_DISASSOCIATE: |
| case NL80211_CMD_FRAME_TX_STATUS: |
| case NL80211_CMD_UNPROT_DEAUTHENTICATE: |
| case NL80211_CMD_UNPROT_DISASSOCIATE: |
| mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME], |
| tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], |
| tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], |
| tb[NL80211_ATTR_COOKIE], |
| tb[NL80211_ATTR_RX_SIGNAL_DBM]); |
| break; |
| case NL80211_CMD_CONNECT: |
| case NL80211_CMD_ROAM: |
| mlme_event_connect(drv, cmd, |
| tb[NL80211_ATTR_STATUS_CODE], |
| tb[NL80211_ATTR_MAC], |
| tb[NL80211_ATTR_REQ_IE], |
| tb[NL80211_ATTR_RESP_IE]); |
| break; |
| case NL80211_CMD_CH_SWITCH_NOTIFY: |
| mlme_event_ch_switch(drv, |
| tb[NL80211_ATTR_IFINDEX], |
| tb[NL80211_ATTR_WIPHY_FREQ], |
| tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE], |
| tb[NL80211_ATTR_CHANNEL_WIDTH], |
| tb[NL80211_ATTR_CENTER_FREQ1], |
| tb[NL80211_ATTR_CENTER_FREQ2]); |
| break; |
| case NL80211_CMD_DISCONNECT: |
| mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE], |
| tb[NL80211_ATTR_MAC], |
| tb[NL80211_ATTR_DISCONNECTED_BY_AP]); |
| break; |
| case NL80211_CMD_MICHAEL_MIC_FAILURE: |
| mlme_event_michael_mic_failure(bss, tb); |
| break; |
| case NL80211_CMD_JOIN_IBSS: |
| mlme_event_join_ibss(drv, tb); |
| break; |
| case NL80211_CMD_REMAIN_ON_CHANNEL: |
| mlme_event_remain_on_channel(drv, 0, tb); |
| break; |
| case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL: |
| mlme_event_remain_on_channel(drv, 1, tb); |
| break; |
| case NL80211_CMD_NOTIFY_CQM: |
| nl80211_cqm_event(drv, tb); |
| break; |
| case NL80211_CMD_REG_CHANGE: |
| wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change"); |
| if (tb[NL80211_ATTR_REG_INITIATOR] == NULL) |
| break; |
| os_memset(&data, 0, sizeof(data)); |
| switch (nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])) { |
| case NL80211_REGDOM_SET_BY_CORE: |
| data.channel_list_changed.initiator = |
| REGDOM_SET_BY_CORE; |
| break; |
| case NL80211_REGDOM_SET_BY_USER: |
| data.channel_list_changed.initiator = |
| REGDOM_SET_BY_USER; |
| break; |
| case NL80211_REGDOM_SET_BY_DRIVER: |
| data.channel_list_changed.initiator = |
| REGDOM_SET_BY_DRIVER; |
| break; |
| case NL80211_REGDOM_SET_BY_COUNTRY_IE: |
| data.channel_list_changed.initiator = |
| REGDOM_SET_BY_COUNTRY_IE; |
| break; |
| default: |
| wpa_printf(MSG_DEBUG, "nl80211: Unknown reg change initiator %d received", |
| nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])); |
| break; |
| } |
| wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, |
| &data); |
| break; |
| case NL80211_CMD_REG_BEACON_HINT: |
| wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint"); |
| os_memset(&data, 0, sizeof(data)); |
| data.channel_list_changed.initiator = REGDOM_BEACON_HINT; |
| wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED, |
| &data); |
| break; |
| case NL80211_CMD_NEW_STATION: |
| nl80211_new_station_event(drv, tb); |
| break; |
| case NL80211_CMD_DEL_STATION: |
| nl80211_del_station_event(drv, tb); |
| break; |
| case NL80211_CMD_SET_REKEY_OFFLOAD: |
| nl80211_rekey_offload_event(drv, tb); |
| break; |
| case NL80211_CMD_PMKSA_CANDIDATE: |
| nl80211_pmksa_candidate_event(drv, tb); |
| break; |
| case NL80211_CMD_PROBE_CLIENT: |
| nl80211_client_probe_event(drv, tb); |
| break; |
| case NL80211_CMD_TDLS_OPER: |
| nl80211_tdls_oper_event(drv, tb); |
| break; |
| case NL80211_CMD_CONN_FAILED: |
| nl80211_connect_failed_event(drv, tb); |
| break; |
| case NL80211_CMD_FT_EVENT: |
| mlme_event_ft_event(drv, tb); |
| break; |
| case NL80211_CMD_RADAR_DETECT: |
| nl80211_radar_event(drv, tb); |
| break; |
| case NL80211_CMD_STOP_AP: |
| nl80211_stop_ap(drv, tb); |
| break; |
| case NL80211_CMD_VENDOR: |
| nl80211_vendor_event(drv, tb); |
| break; |
| default: |
| wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event " |
| "(cmd=%d)", cmd); |
| break; |
| } |
| } |
| |
| |
| static int process_drv_event(struct nl_msg *msg, void *arg) |
| { |
| struct wpa_driver_nl80211_data *drv = arg; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct i802_bss *bss; |
| int ifidx = -1; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| if (tb[NL80211_ATTR_IFINDEX]) { |
| ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); |
| |
| for (bss = drv->first_bss; bss; bss = bss->next) |
| if (ifidx == -1 || ifidx == bss->ifindex) { |
| do_process_drv_event(bss, gnlh->cmd, tb); |
| return NL_SKIP; |
| } |
| wpa_printf(MSG_DEBUG, |
| "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)", |
| gnlh->cmd, ifidx); |
| } else if (tb[NL80211_ATTR_WDEV]) { |
| u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); |
| wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device"); |
| for (bss = drv->first_bss; bss; bss = bss->next) { |
| if (bss->wdev_id_set && wdev_id == bss->wdev_id) { |
| do_process_drv_event(bss, gnlh->cmd, tb); |
| return NL_SKIP; |
| } |
| } |
| wpa_printf(MSG_DEBUG, |
| "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)", |
| gnlh->cmd, (long long unsigned int) wdev_id); |
| } |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int process_global_event(struct nl_msg *msg, void *arg) |
| { |
| struct nl80211_global *global = arg; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct wpa_driver_nl80211_data *drv, *tmp; |
| int ifidx = -1; |
| struct i802_bss *bss; |
| u64 wdev_id = 0; |
| int wdev_id_set = 0; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| if (tb[NL80211_ATTR_IFINDEX]) |
| ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); |
| else if (tb[NL80211_ATTR_WDEV]) { |
| wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); |
| wdev_id_set = 1; |
| } |
| |
| dl_list_for_each_safe(drv, tmp, &global->interfaces, |
| struct wpa_driver_nl80211_data, list) { |
| for (bss = drv->first_bss; bss; bss = bss->next) { |
| if ((ifidx == -1 && !wdev_id_set) || |
| ifidx == bss->ifindex || |
| (wdev_id_set && bss->wdev_id_set && |
| wdev_id == bss->wdev_id)) { |
| do_process_drv_event(bss, gnlh->cmd, tb); |
| return NL_SKIP; |
| } |
| } |
| } |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int process_bss_event(struct nl_msg *msg, void *arg) |
| { |
| struct i802_bss *bss = arg; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s", |
| gnlh->cmd, nl80211_command_to_string(gnlh->cmd), |
| bss->ifname); |
| |
| switch (gnlh->cmd) { |
| case NL80211_CMD_FRAME: |
| case NL80211_CMD_FRAME_TX_STATUS: |
| mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME], |
| tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT], |
| tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK], |
| tb[NL80211_ATTR_COOKIE], |
| tb[NL80211_ATTR_RX_SIGNAL_DBM]); |
| break; |
| case NL80211_CMD_UNEXPECTED_FRAME: |
| nl80211_spurious_frame(bss, tb, 0); |
| break; |
| case NL80211_CMD_UNEXPECTED_4ADDR_FRAME: |
| nl80211_spurious_frame(bss, tb, 1); |
| break; |
| default: |
| wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event " |
| "(cmd=%d)", gnlh->cmd); |
| break; |
| } |
| |
| return NL_SKIP; |
| } |
| |
| |
| static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx, |
| void *handle) |
| { |
| struct nl_cb *cb = eloop_ctx; |
| int res; |
| |
| wpa_printf(MSG_MSGDUMP, "nl80211: Event message available"); |
| |
| res = nl_recvmsgs(handle, cb); |
| if (res) { |
| wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d", |
| __func__, res); |
| } |
| } |
| |
| |
| /** |
| * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain |
| * @priv: driver_nl80211 private data |
| * @alpha2_arg: country to which to switch to |
| * Returns: 0 on success, -1 on failure |
| * |
| * This asks nl80211 to set the regulatory domain for given |
| * country ISO / IEC alpha2. |
| */ |
| static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| char alpha2[3]; |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| alpha2[0] = alpha2_arg[0]; |
| alpha2[1] = alpha2_arg[1]; |
| alpha2[2] = '\0'; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG); |
| |
| NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2); |
| if (send_and_recv_msgs(drv, msg, NULL, NULL)) |
| return -EINVAL; |
| return 0; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -EINVAL; |
| } |
| |
| |
| static int nl80211_get_country(struct nl_msg *msg, void *arg) |
| { |
| char *alpha2 = arg; |
| struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| |
| nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) { |
| wpa_printf(MSG_DEBUG, "nl80211: No country information available"); |
| return NL_SKIP; |
| } |
| os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3); |
| return NL_SKIP; |
| } |
| |
| |
| static int wpa_driver_nl80211_get_country(void *priv, char *alpha2) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); |
| alpha2[0] = '\0'; |
| ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2); |
| if (!alpha2[0]) |
| ret = -1; |
| |
| return ret; |
| } |
| |
| |
| static int protocol_feature_handler(struct nl_msg *msg, void *arg) |
| { |
| u32 *feat = arg; |
| struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| |
| nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]) |
| *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]); |
| |
| return NL_SKIP; |
| } |
| |
| |
| static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv) |
| { |
| u32 feat = 0; |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| goto nla_put_failure; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES); |
| if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0) |
| return feat; |
| |
| msg = NULL; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return 0; |
| } |
| |
| |
| struct wiphy_info_data { |
| struct wpa_driver_nl80211_data *drv; |
| struct wpa_driver_capa *capa; |
| |
| unsigned int num_multichan_concurrent; |
| |
| unsigned int error:1; |
| unsigned int device_ap_sme:1; |
| unsigned int poll_command_supported:1; |
| unsigned int data_tx_status:1; |
| unsigned int monitor_supported:1; |
| unsigned int auth_supported:1; |
| unsigned int connect_supported:1; |
| unsigned int p2p_go_supported:1; |
| unsigned int p2p_client_supported:1; |
| unsigned int p2p_concurrent:1; |
| unsigned int channel_switch_supported:1; |
| unsigned int set_qos_map_supported:1; |
| }; |
| |
| |
| static unsigned int probe_resp_offload_support(int supp_protocols) |
| { |
| unsigned int prot = 0; |
| |
| if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS) |
| prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS; |
| if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2) |
| prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2; |
| if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P) |
| prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P; |
| if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U) |
| prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING; |
| |
| return prot; |
| } |
| |
| |
| static void wiphy_info_supported_iftypes(struct wiphy_info_data *info, |
| struct nlattr *tb) |
| { |
| struct nlattr *nl_mode; |
| int i; |
| |
| if (tb == NULL) |
| return; |
| |
| nla_for_each_nested(nl_mode, tb, i) { |
| switch (nla_type(nl_mode)) { |
| case NL80211_IFTYPE_AP: |
| info->capa->flags |= WPA_DRIVER_FLAGS_AP; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| info->capa->flags |= WPA_DRIVER_FLAGS_IBSS; |
| break; |
| case NL80211_IFTYPE_P2P_DEVICE: |
| info->capa->flags |= |
| WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; |
| break; |
| case NL80211_IFTYPE_P2P_GO: |
| info->p2p_go_supported = 1; |
| break; |
| case NL80211_IFTYPE_P2P_CLIENT: |
| info->p2p_client_supported = 1; |
| break; |
| case NL80211_IFTYPE_MONITOR: |
| info->monitor_supported = 1; |
| break; |
| } |
| } |
| } |
| |
| |
| static int wiphy_info_iface_comb_process(struct wiphy_info_data *info, |
| struct nlattr *nl_combi) |
| { |
| struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB]; |
| struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT]; |
| struct nlattr *nl_limit, *nl_mode; |
| int err, rem_limit, rem_mode; |
| int combination_has_p2p = 0, combination_has_mgd = 0; |
| static struct nla_policy |
| iface_combination_policy[NUM_NL80211_IFACE_COMB] = { |
| [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED }, |
| [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 }, |
| [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG }, |
| [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 }, |
| [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 }, |
| }, |
| iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = { |
| [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED }, |
| [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 }, |
| }; |
| |
| err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB, |
| nl_combi, iface_combination_policy); |
| if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] || |
| !tb_comb[NL80211_IFACE_COMB_MAXNUM] || |
| !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) |
| return 0; /* broken combination */ |
| |
| if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS]) |
| info->capa->flags |= WPA_DRIVER_FLAGS_RADAR; |
| |
| nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS], |
| rem_limit) { |
| err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT, |
| nl_limit, iface_limit_policy); |
| if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES]) |
| return 0; /* broken combination */ |
| |
| nla_for_each_nested(nl_mode, |
| tb_limit[NL80211_IFACE_LIMIT_TYPES], |
| rem_mode) { |
| int ift = nla_type(nl_mode); |
| if (ift == NL80211_IFTYPE_P2P_GO || |
| ift == NL80211_IFTYPE_P2P_CLIENT) |
| combination_has_p2p = 1; |
| if (ift == NL80211_IFTYPE_STATION) |
| combination_has_mgd = 1; |
| } |
| if (combination_has_p2p && combination_has_mgd) |
| break; |
| } |
| |
| if (combination_has_p2p && combination_has_mgd) { |
| info->p2p_concurrent = 1; |
| info->num_multichan_concurrent = |
| nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| |
| static void wiphy_info_iface_comb(struct wiphy_info_data *info, |
| struct nlattr *tb) |
| { |
| struct nlattr *nl_combi; |
| int rem_combi; |
| |
| if (tb == NULL) |
| return; |
| |
| nla_for_each_nested(nl_combi, tb, rem_combi) { |
| if (wiphy_info_iface_comb_process(info, nl_combi) > 0) |
| break; |
| } |
| } |
| |
| |
| static void wiphy_info_supp_cmds(struct wiphy_info_data *info, |
| struct nlattr *tb) |
| { |
| struct nlattr *nl_cmd; |
| int i; |
| |
| if (tb == NULL) |
| return; |
| |
| nla_for_each_nested(nl_cmd, tb, i) { |
| switch (nla_get_u32(nl_cmd)) { |
| case NL80211_CMD_AUTHENTICATE: |
| info->auth_supported = 1; |
| break; |
| case NL80211_CMD_CONNECT: |
| info->connect_supported = 1; |
| break; |
| case NL80211_CMD_START_SCHED_SCAN: |
| info->capa->sched_scan_supported = 1; |
| break; |
| case NL80211_CMD_PROBE_CLIENT: |
| info->poll_command_supported = 1; |
| break; |
| case NL80211_CMD_CHANNEL_SWITCH: |
| info->channel_switch_supported = 1; |
| break; |
| case NL80211_CMD_SET_QOS_MAP: |
| info->set_qos_map_supported = 1; |
| break; |
| } |
| } |
| } |
| |
| |
| static void wiphy_info_cipher_suites(struct wiphy_info_data *info, |
| struct nlattr *tb) |
| { |
| int i, num; |
| u32 *ciphers; |
| |
| if (tb == NULL) |
| return; |
| |
| num = nla_len(tb) / sizeof(u32); |
| ciphers = nla_data(tb); |
| for (i = 0; i < num; i++) { |
| u32 c = ciphers[i]; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d", |
| c >> 24, (c >> 16) & 0xff, |
| (c >> 8) & 0xff, c & 0xff); |
| switch (c) { |
| case WLAN_CIPHER_SUITE_CCMP_256: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256; |
| break; |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP; |
| break; |
| case WLAN_CIPHER_SUITE_GCMP: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP; |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP; |
| break; |
| case WLAN_CIPHER_SUITE_WEP104: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104; |
| break; |
| case WLAN_CIPHER_SUITE_WEP40: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40; |
| break; |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP; |
| break; |
| case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128; |
| break; |
| case WLAN_CIPHER_SUITE_BIP_GMAC_256: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256; |
| break; |
| case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256; |
| break; |
| case WLAN_CIPHER_SUITE_NO_GROUP_ADDR: |
| info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED; |
| break; |
| } |
| } |
| } |
| |
| |
| static void wiphy_info_max_roc(struct wpa_driver_capa *capa, |
| struct nlattr *tb) |
| { |
| if (tb) |
| capa->max_remain_on_chan = nla_get_u32(tb); |
| } |
| |
| |
| static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls, |
| struct nlattr *ext_setup) |
| { |
| if (tdls == NULL) |
| return; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: TDLS supported"); |
| capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT; |
| |
| if (ext_setup) { |
| wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup"); |
| capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP; |
| } |
| } |
| |
| |
| static void wiphy_info_feature_flags(struct wiphy_info_data *info, |
| struct nlattr *tb) |
| { |
| u32 flags; |
| struct wpa_driver_capa *capa = info->capa; |
| |
| if (tb == NULL) |
| return; |
| |
| flags = nla_get_u32(tb); |
| |
| if (flags & NL80211_FEATURE_SK_TX_STATUS) |
| info->data_tx_status = 1; |
| |
| if (flags & NL80211_FEATURE_INACTIVITY_TIMER) |
| capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER; |
| |
| if (flags & NL80211_FEATURE_SAE) |
| capa->flags |= WPA_DRIVER_FLAGS_SAE; |
| |
| if (flags & NL80211_FEATURE_NEED_OBSS_SCAN) |
| capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN; |
| } |
| |
| |
| static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa, |
| struct nlattr *tb) |
| { |
| u32 protocols; |
| |
| if (tb == NULL) |
| return; |
| |
| protocols = nla_get_u32(tb); |
| wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP " |
| "mode"); |
| capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD; |
| capa->probe_resp_offloads = probe_resp_offload_support(protocols); |
| } |
| |
| |
| static int wiphy_info_handler(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct wiphy_info_data *info = arg; |
| struct wpa_driver_capa *capa = info->capa; |
| struct wpa_driver_nl80211_data *drv = info->drv; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| if (tb[NL80211_ATTR_WIPHY_NAME]) |
| os_strlcpy(drv->phyname, |
| nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]), |
| sizeof(drv->phyname)); |
| if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) |
| capa->max_scan_ssids = |
| nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]); |
| |
| if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]) |
| capa->max_sched_scan_ssids = |
| nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]); |
| |
| if (tb[NL80211_ATTR_MAX_MATCH_SETS]) |
| capa->max_match_sets = |
| nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]); |
| |
| if (tb[NL80211_ATTR_MAC_ACL_MAX]) |
| capa->max_acl_mac_addrs = |
| nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]); |
| |
| wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]); |
| wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]); |
| wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]); |
| wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]); |
| |
| if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) { |
| wpa_printf(MSG_DEBUG, "nl80211: Using driver-based " |
| "off-channel TX"); |
| capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX; |
| } |
| |
| if (tb[NL80211_ATTR_ROAM_SUPPORT]) { |
| wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming"); |
| capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION; |
| } |
| |
| wiphy_info_max_roc(capa, |
| tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); |
| |
| if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD]) |
| capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD; |
| |
| wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT], |
| tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]); |
| |
| if (tb[NL80211_ATTR_DEVICE_AP_SME]) |
| info->device_ap_sme = 1; |
| |
| wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]); |
| wiphy_info_probe_resp_offload(capa, |
| tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]); |
| |
| if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] && |
| drv->extended_capa == NULL) { |
| drv->extended_capa = |
| os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); |
| if (drv->extended_capa) { |
| os_memcpy(drv->extended_capa, |
| nla_data(tb[NL80211_ATTR_EXT_CAPA]), |
| nla_len(tb[NL80211_ATTR_EXT_CAPA])); |
| drv->extended_capa_len = |
| nla_len(tb[NL80211_ATTR_EXT_CAPA]); |
| } |
| drv->extended_capa_mask = |
| os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA])); |
| if (drv->extended_capa_mask) { |
| os_memcpy(drv->extended_capa_mask, |
| nla_data(tb[NL80211_ATTR_EXT_CAPA]), |
| nla_len(tb[NL80211_ATTR_EXT_CAPA])); |
| } else { |
| os_free(drv->extended_capa); |
| drv->extended_capa = NULL; |
| drv->extended_capa_len = 0; |
| } |
| } |
| |
| if (tb[NL80211_ATTR_VENDOR_DATA]) { |
| struct nlattr *nl; |
| int rem; |
| |
| nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) { |
| struct nl80211_vendor_cmd_info *vinfo; |
| if (nla_len(nl) != sizeof(*vinfo)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); |
| continue; |
| } |
| vinfo = nla_data(nl); |
| wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u", |
| vinfo->vendor_id, vinfo->subcmd); |
| } |
| } |
| |
| if (tb[NL80211_ATTR_VENDOR_EVENTS]) { |
| struct nlattr *nl; |
| int rem; |
| |
| nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) { |
| struct nl80211_vendor_cmd_info *vinfo; |
| if (nla_len(nl) != sizeof(*vinfo)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info"); |
| continue; |
| } |
| vinfo = nla_data(nl); |
| wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u", |
| vinfo->vendor_id, vinfo->subcmd); |
| } |
| } |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv, |
| struct wiphy_info_data *info) |
| { |
| u32 feat; |
| struct nl_msg *msg; |
| |
| os_memset(info, 0, sizeof(*info)); |
| info->capa = &drv->capa; |
| info->drv = drv; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| feat = get_nl80211_protocol_features(drv); |
| if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) |
| nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); |
| else |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); |
| |
| NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); |
| if (nl80211_set_iface_id(msg, drv->first_bss) < 0) |
| goto nla_put_failure; |
| |
| if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info)) |
| return -1; |
| |
| if (info->auth_supported) |
| drv->capa.flags |= WPA_DRIVER_FLAGS_SME; |
| else if (!info->connect_supported) { |
| wpa_printf(MSG_INFO, "nl80211: Driver does not support " |
| "authentication/association or connect commands"); |
| info->error = 1; |
| } |
| |
| if (info->p2p_go_supported && info->p2p_client_supported) |
| drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE; |
| if (info->p2p_concurrent) { |
| wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " |
| "interface (driver advertised support)"); |
| drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; |
| drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; |
| } |
| if (info->num_multichan_concurrent > 1) { |
| wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel " |
| "concurrent (driver advertised support)"); |
| drv->capa.num_multichan_concurrent = |
| info->num_multichan_concurrent; |
| } |
| |
| /* default to 5000 since early versions of mac80211 don't set it */ |
| if (!drv->capa.max_remain_on_chan) |
| drv->capa.max_remain_on_chan = 5000; |
| |
| if (info->channel_switch_supported) |
| drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA; |
| |
| return 0; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -1; |
| } |
| |
| |
| static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv) |
| { |
| struct wiphy_info_data info; |
| if (wpa_driver_nl80211_get_info(drv, &info)) |
| return -1; |
| |
| if (info.error) |
| return -1; |
| |
| drv->has_capability = 1; |
| drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | |
| WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | |
| WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | |
| WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; |
| drv->capa.auth = WPA_DRIVER_AUTH_OPEN | |
| WPA_DRIVER_AUTH_SHARED | |
| WPA_DRIVER_AUTH_LEAP; |
| |
| drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES; |
| drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE; |
| drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; |
| |
| if (!info.device_ap_sme) { |
| drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS; |
| |
| /* |
| * No AP SME is currently assumed to also indicate no AP MLME |
| * in the driver/firmware. |
| */ |
| drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME; |
| } |
| |
| drv->device_ap_sme = info.device_ap_sme; |
| drv->poll_command_supported = info.poll_command_supported; |
| drv->data_tx_status = info.data_tx_status; |
| if (info.set_qos_map_supported) |
| drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING; |
| |
| /* |
| * If poll command and tx status are supported, mac80211 is new enough |
| * to have everything we need to not need monitor interfaces. |
| */ |
| drv->use_monitor = !info.poll_command_supported || !info.data_tx_status; |
| |
| if (drv->device_ap_sme && drv->use_monitor) { |
| /* |
| * Non-mac80211 drivers may not support monitor interface. |
| * Make sure we do not get stuck with incorrect capability here |
| * by explicitly testing this. |
| */ |
| if (!info.monitor_supported) { |
| wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor " |
| "with device_ap_sme since no monitor mode " |
| "support detected"); |
| drv->use_monitor = 0; |
| } |
| } |
| |
| /* |
| * If we aren't going to use monitor interfaces, but the |
| * driver doesn't support data TX status, we won't get TX |
| * status for EAPOL frames. |
| */ |
| if (!drv->use_monitor && !info.data_tx_status) |
| drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; |
| |
| return 0; |
| } |
| |
| |
| #ifdef ANDROID |
| static int android_genl_ctrl_resolve(struct nl_handle *handle, |
| const char *name) |
| { |
| /* |
| * Android ICS has very minimal genl_ctrl_resolve() implementation, so |
| * need to work around that. |
| */ |
| struct nl_cache *cache = NULL; |
| struct genl_family *nl80211 = NULL; |
| int id = -1; |
| |
| if (genl_ctrl_alloc_cache(handle, &cache) < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic " |
| "netlink cache"); |
| goto fail; |
| } |
| |
| nl80211 = genl_ctrl_search_by_name(cache, name); |
| if (nl80211 == NULL) |
| goto fail; |
| |
| id = genl_family_get_id(nl80211); |
| |
| fail: |
| if (nl80211) |
| genl_family_put(nl80211); |
| if (cache) |
| nl_cache_free(cache); |
| |
| return id; |
| } |
| #define genl_ctrl_resolve android_genl_ctrl_resolve |
| #endif /* ANDROID */ |
| |
| |
| static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global) |
| { |
| int ret; |
| |
| global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); |
| if (global->nl_cb == NULL) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink " |
| "callbacks"); |
| return -1; |
| } |
| |
| global->nl = nl_create_handle(global->nl_cb, "nl"); |
| if (global->nl == NULL) |
| goto err; |
| |
| global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211"); |
| if (global->nl80211_id < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not " |
| "found"); |
| goto err; |
| } |
| |
| global->nl_event = nl_create_handle(global->nl_cb, "event"); |
| if (global->nl_event == NULL) |
| goto err; |
| |
| ret = nl_get_multicast_id(global, "nl80211", "scan"); |
| if (ret >= 0) |
| ret = nl_socket_add_membership(global->nl_event, ret); |
| if (ret < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " |
| "membership for scan events: %d (%s)", |
| ret, strerror(-ret)); |
| goto err; |
| } |
| |
| ret = nl_get_multicast_id(global, "nl80211", "mlme"); |
| if (ret >= 0) |
| ret = nl_socket_add_membership(global->nl_event, ret); |
| if (ret < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: Could not add multicast " |
| "membership for mlme events: %d (%s)", |
| ret, strerror(-ret)); |
| goto err; |
| } |
| |
| ret = nl_get_multicast_id(global, "nl80211", "regulatory"); |
| if (ret >= 0) |
| ret = nl_socket_add_membership(global->nl_event, ret); |
| if (ret < 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " |
| "membership for regulatory events: %d (%s)", |
| ret, strerror(-ret)); |
| /* Continue without regulatory events */ |
| } |
| |
| ret = nl_get_multicast_id(global, "nl80211", "vendor"); |
| if (ret >= 0) |
| ret = nl_socket_add_membership(global->nl_event, ret); |
| if (ret < 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast " |
| "membership for vendor events: %d (%s)", |
| ret, strerror(-ret)); |
| /* Continue without vendor events */ |
| } |
| |
| nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, |
| no_seq_check, NULL); |
| nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, |
| process_global_event, global); |
| |
| nl80211_register_eloop_read(&global->nl_event, |
| wpa_driver_nl80211_event_receive, |
| global->nl_cb); |
| |
| return 0; |
| |
| err: |
| nl_destroy_handles(&global->nl_event); |
| nl_destroy_handles(&global->nl); |
| nl_cb_put(global->nl_cb); |
| global->nl_cb = NULL; |
| return -1; |
| } |
| |
| |
| static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv) |
| { |
| drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); |
| if (!drv->nl_cb) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct"); |
| return -1; |
| } |
| |
| nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, |
| no_seq_check, NULL); |
| nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, |
| process_drv_event, drv); |
| |
| return 0; |
| } |
| |
| |
| static void wpa_driver_nl80211_rfkill_blocked(void *ctx) |
| { |
| wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked"); |
| /* |
| * This may be for any interface; use ifdown event to disable |
| * interface. |
| */ |
| } |
| |
| |
| static void wpa_driver_nl80211_rfkill_unblocked(void *ctx) |
| { |
| struct wpa_driver_nl80211_data *drv = ctx; |
| wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked"); |
| if (i802_set_iface_flags(drv->first_bss, 1)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP " |
| "after rfkill unblock"); |
| return; |
| } |
| /* rtnetlink ifup handler will report interface as enabled */ |
| } |
| |
| |
| static void wpa_driver_nl80211_handle_eapol_tx_status(int sock, |
| void *eloop_ctx, |
| void *handle) |
| { |
| struct wpa_driver_nl80211_data *drv = eloop_ctx; |
| u8 data[2048]; |
| struct msghdr msg; |
| struct iovec entry; |
| u8 control[512]; |
| struct cmsghdr *cmsg; |
| int res, found_ee = 0, found_wifi = 0, acked = 0; |
| union wpa_event_data event; |
| |
| memset(&msg, 0, sizeof(msg)); |
| msg.msg_iov = &entry; |
| msg.msg_iovlen = 1; |
| entry.iov_base = data; |
| entry.iov_len = sizeof(data); |
| msg.msg_control = &control; |
| msg.msg_controllen = sizeof(control); |
| |
| res = recvmsg(sock, &msg, MSG_ERRQUEUE); |
| /* if error or not fitting 802.3 header, return */ |
| if (res < 14) |
| return; |
| |
| for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) |
| { |
| if (cmsg->cmsg_level == SOL_SOCKET && |
| cmsg->cmsg_type == SCM_WIFI_STATUS) { |
| int *ack; |
| |
| found_wifi = 1; |
| ack = (void *)CMSG_DATA(cmsg); |
| acked = *ack; |
| } |
| |
| if (cmsg->cmsg_level == SOL_PACKET && |
| cmsg->cmsg_type == PACKET_TX_TIMESTAMP) { |
| struct sock_extended_err *err = |
| (struct sock_extended_err *)CMSG_DATA(cmsg); |
| |
| if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS) |
| found_ee = 1; |
| } |
| } |
| |
| if (!found_ee || !found_wifi) |
| return; |
| |
| memset(&event, 0, sizeof(event)); |
| event.eapol_tx_status.dst = data; |
| event.eapol_tx_status.data = data + 14; |
| event.eapol_tx_status.data_len = res - 14; |
| event.eapol_tx_status.ack = acked; |
| wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event); |
| } |
| |
| |
| static int nl80211_init_bss(struct i802_bss *bss) |
| { |
| bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT); |
| if (!bss->nl_cb) |
| return -1; |
| |
| nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, |
| no_seq_check, NULL); |
| nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, |
| process_bss_event, bss); |
| |
| return 0; |
| } |
| |
| |
| static void nl80211_destroy_bss(struct i802_bss *bss) |
| { |
| nl_cb_put(bss->nl_cb); |
| bss->nl_cb = NULL; |
| } |
| |
| |
| static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname, |
| void *global_priv, int hostapd, |
| const u8 *set_addr) |
| { |
| struct wpa_driver_nl80211_data *drv; |
| struct rfkill_config *rcfg; |
| struct i802_bss *bss; |
| |
| if (global_priv == NULL) |
| return NULL; |
| drv = os_zalloc(sizeof(*drv)); |
| if (drv == NULL) |
| return NULL; |
| drv->global = global_priv; |
| drv->ctx = ctx; |
| drv->hostapd = !!hostapd; |
| drv->eapol_sock = -1; |
| drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int); |
| drv->if_indices = drv->default_if_indices; |
| |
| drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); |
| if (!drv->first_bss) { |
| os_free(drv); |
| return NULL; |
| } |
| bss = drv->first_bss; |
| bss->drv = drv; |
| bss->ctx = ctx; |
| |
| os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname)); |
| drv->monitor_ifidx = -1; |
| drv->monitor_sock = -1; |
| drv->eapol_tx_sock = -1; |
| drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; |
| |
| if (wpa_driver_nl80211_init_nl(drv)) { |
| os_free(drv); |
| return NULL; |
| } |
| |
| if (nl80211_init_bss(bss)) |
| goto failed; |
| |
| rcfg = os_zalloc(sizeof(*rcfg)); |
| if (rcfg == NULL) |
| goto failed; |
| rcfg->ctx = drv; |
| os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname)); |
| rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked; |
| rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked; |
| drv->rfkill = rfkill_init(rcfg); |
| if (drv->rfkill == NULL) { |
| wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available"); |
| os_free(rcfg); |
| } |
| |
| if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0) |
| drv->start_iface_up = 1; |
| |
| if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1)) |
| goto failed; |
| |
| drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); |
| if (drv->eapol_tx_sock < 0) |
| goto failed; |
| |
| if (drv->data_tx_status) { |
| int enabled = 1; |
| |
| if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS, |
| &enabled, sizeof(enabled)) < 0) { |
| wpa_printf(MSG_DEBUG, |
| "nl80211: wifi status sockopt failed\n"); |
| drv->data_tx_status = 0; |
| if (!drv->use_monitor) |
| drv->capa.flags &= |
| ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS; |
| } else { |
| eloop_register_read_sock(drv->eapol_tx_sock, |
| wpa_driver_nl80211_handle_eapol_tx_status, |
| drv, NULL); |
| } |
| } |
| |
| if (drv->global) { |
| dl_list_add(&drv->global->interfaces, &drv->list); |
| drv->in_interface_list = 1; |
| } |
| |
| return bss; |
| |
| failed: |
| wpa_driver_nl80211_deinit(bss); |
| return NULL; |
| } |
| |
| |
| /** |
| * wpa_driver_nl80211_init - Initialize nl80211 driver interface |
| * @ctx: context to be used when calling wpa_supplicant functions, |
| * e.g., wpa_supplicant_event() |
| * @ifname: interface name, e.g., wlan0 |
| * @global_priv: private driver global data from global_init() |
| * Returns: Pointer to private data, %NULL on failure |
| */ |
| static void * wpa_driver_nl80211_init(void *ctx, const char *ifname, |
| void *global_priv) |
| { |
| return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL); |
| } |
| |
| |
| static int nl80211_register_frame(struct i802_bss *bss, |
| struct nl_handle *nl_handle, |
| u16 type, const u8 *match, size_t match_len) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret = -1; |
| char buf[30]; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| buf[0] = '\0'; |
| wpa_snprintf_hex(buf, sizeof(buf), match, match_len); |
| wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p match=%s", |
| type, nl_handle, buf); |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION); |
| |
| if (nl80211_set_iface_id(msg, bss) < 0) |
| goto nla_put_failure; |
| |
| NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type); |
| NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match); |
| |
| ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Register frame command " |
| "failed (type=%u): ret=%d (%s)", |
| type, ret, strerror(-ret)); |
| wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match", |
| match, match_len); |
| goto nla_put_failure; |
| } |
| ret = 0; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int nl80211_alloc_mgmt_handle(struct i802_bss *bss) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| |
| if (bss->nl_mgmt) { |
| wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting " |
| "already on! (nl_mgmt=%p)", bss->nl_mgmt); |
| return -1; |
| } |
| |
| bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt"); |
| if (bss->nl_mgmt == NULL) |
| return -1; |
| |
| return 0; |
| } |
| |
| |
| static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss) |
| { |
| nl80211_register_eloop_read(&bss->nl_mgmt, |
| wpa_driver_nl80211_event_receive, |
| bss->nl_cb); |
| } |
| |
| |
| static int nl80211_register_action_frame(struct i802_bss *bss, |
| const u8 *match, size_t match_len) |
| { |
| u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4); |
| return nl80211_register_frame(bss, bss->nl_mgmt, |
| type, match, match_len); |
| } |
| |
| |
| static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ret = 0; |
| |
| if (nl80211_alloc_mgmt_handle(bss)) |
| return -1; |
| wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP " |
| "handle %p", bss->nl_mgmt); |
| |
| if (drv->nlmode == NL80211_IFTYPE_ADHOC) { |
| u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4); |
| |
| /* register for any AUTH message */ |
| nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0); |
| } |
| |
| #ifdef CONFIG_INTERWORKING |
| /* QoS Map Configure */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0) |
| ret = -1; |
| #endif /* CONFIG_INTERWORKING */ |
| #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) |
| /* GAS Initial Request */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0) |
| ret = -1; |
| /* GAS Initial Response */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0) |
| ret = -1; |
| /* GAS Comeback Request */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0) |
| ret = -1; |
| /* GAS Comeback Response */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0) |
| ret = -1; |
| /* Protected GAS Initial Request */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0) |
| ret = -1; |
| /* Protected GAS Initial Response */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0) |
| ret = -1; |
| /* Protected GAS Comeback Request */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0) |
| ret = -1; |
| /* Protected GAS Comeback Response */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0) |
| ret = -1; |
| #endif /* CONFIG_P2P || CONFIG_INTERWORKING */ |
| #ifdef CONFIG_P2P |
| /* P2P Public Action */ |
| if (nl80211_register_action_frame(bss, |
| (u8 *) "\x04\x09\x50\x6f\x9a\x09", |
| 6) < 0) |
| ret = -1; |
| /* P2P Action */ |
| if (nl80211_register_action_frame(bss, |
| (u8 *) "\x7f\x50\x6f\x9a\x09", |
| 5) < 0) |
| ret = -1; |
| #endif /* CONFIG_P2P */ |
| #ifdef CONFIG_IEEE80211W |
| /* SA Query Response */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0) |
| ret = -1; |
| #endif /* CONFIG_IEEE80211W */ |
| #ifdef CONFIG_TDLS |
| if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) { |
| /* TDLS Discovery Response */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) < |
| 0) |
| ret = -1; |
| } |
| #endif /* CONFIG_TDLS */ |
| |
| /* FT Action frames */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0) |
| ret = -1; |
| else |
| drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT | |
| WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK; |
| |
| /* WNM - BSS Transition Management Request */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0) |
| ret = -1; |
| /* WNM-Sleep Mode Response */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0) |
| ret = -1; |
| |
| #ifdef CONFIG_HS20 |
| /* WNM-Notification */ |
| if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0) |
| return -1; |
| #endif /* CONFIG_HS20 */ |
| |
| nl80211_mgmt_handle_register_eloop(bss); |
| |
| return ret; |
| } |
| |
| |
| static int nl80211_register_spurious_class3(struct i802_bss *bss) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret = -1; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); |
| |
| ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 " |
| "failed: ret=%d (%s)", |
| ret, strerror(-ret)); |
| goto nla_put_failure; |
| } |
| ret = 0; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss) |
| { |
| static const int stypes[] = { |
| WLAN_FC_STYPE_AUTH, |
| WLAN_FC_STYPE_ASSOC_REQ, |
| WLAN_FC_STYPE_REASSOC_REQ, |
| WLAN_FC_STYPE_DISASSOC, |
| WLAN_FC_STYPE_DEAUTH, |
| WLAN_FC_STYPE_ACTION, |
| WLAN_FC_STYPE_PROBE_REQ, |
| /* Beacon doesn't work as mac80211 doesn't currently allow |
| * it, but it wouldn't really be the right thing anyway as |
| * it isn't per interface ... maybe just dump the scan |
| * results periodically for OLBC? |
| */ |
| // WLAN_FC_STYPE_BEACON, |
| }; |
| unsigned int i; |
| |
| if (nl80211_alloc_mgmt_handle(bss)) |
| return -1; |
| wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " |
| "handle %p", bss->nl_mgmt); |
| |
| for (i = 0; i < ARRAY_SIZE(stypes); i++) { |
| if (nl80211_register_frame(bss, bss->nl_mgmt, |
| (WLAN_FC_TYPE_MGMT << 2) | |
| (stypes[i] << 4), |
| NULL, 0) < 0) { |
| goto out_err; |
| } |
| } |
| |
| if (nl80211_register_spurious_class3(bss)) |
| goto out_err; |
| |
| if (nl80211_get_wiphy_data_ap(bss) == NULL) |
| goto out_err; |
| |
| nl80211_mgmt_handle_register_eloop(bss); |
| return 0; |
| |
| out_err: |
| nl_destroy_handles(&bss->nl_mgmt); |
| return -1; |
| } |
| |
| |
| static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss) |
| { |
| if (nl80211_alloc_mgmt_handle(bss)) |
| return -1; |
| wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP " |
| "handle %p (device SME)", bss->nl_mgmt); |
| |
| if (nl80211_register_frame(bss, bss->nl_mgmt, |
| (WLAN_FC_TYPE_MGMT << 2) | |
| (WLAN_FC_STYPE_ACTION << 4), |
| NULL, 0) < 0) |
| goto out_err; |
| |
| nl80211_mgmt_handle_register_eloop(bss); |
| return 0; |
| |
| out_err: |
| nl_destroy_handles(&bss->nl_mgmt); |
| return -1; |
| } |
| |
| |
| static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason) |
| { |
| if (bss->nl_mgmt == NULL) |
| return; |
| wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p " |
| "(%s)", bss->nl_mgmt, reason); |
| nl80211_destroy_eloop_handle(&bss->nl_mgmt); |
| |
| nl80211_put_wiphy_data_ap(bss); |
| } |
| |
| |
| static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx) |
| { |
| wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL); |
| } |
| |
| |
| static void nl80211_del_p2pdev(struct i802_bss *bss) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); |
| NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s", |
| bss->ifname, (long long unsigned int) bss->wdev_id, |
| strerror(-ret)); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| |
| static int nl80211_set_p2pdev(struct i802_bss *bss, int start) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret = -1; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| if (start) |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE); |
| else |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE); |
| |
| NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s", |
| start ? "Start" : "Stop", |
| bss->ifname, (long long unsigned int) bss->wdev_id, |
| strerror(-ret)); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int i802_set_iface_flags(struct i802_bss *bss, int up) |
| { |
| enum nl80211_iftype nlmode; |
| |
| nlmode = nl80211_get_ifmode(bss); |
| if (nlmode != NL80211_IFTYPE_P2P_DEVICE) { |
| return linux_set_iface_flags(bss->drv->global->ioctl_sock, |
| bss->ifname, up); |
| } |
| |
| /* P2P Device has start/stop which is equivalent */ |
| return nl80211_set_p2pdev(bss, up); |
| } |
| |
| |
| static int |
| wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv, |
| const u8 *set_addr, int first) |
| { |
| struct i802_bss *bss = drv->first_bss; |
| int send_rfkill_event = 0; |
| enum nl80211_iftype nlmode; |
| |
| drv->ifindex = if_nametoindex(bss->ifname); |
| bss->ifindex = drv->ifindex; |
| bss->wdev_id = drv->global->if_add_wdevid; |
| bss->wdev_id_set = drv->global->if_add_wdevid_set; |
| |
| bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex; |
| bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set; |
| drv->global->if_add_wdevid_set = 0; |
| |
| if (wpa_driver_nl80211_capa(drv)) |
| return -1; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", |
| bss->ifname, drv->phyname); |
| |
| if (set_addr && |
| (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) || |
| linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, |
| set_addr))) |
| return -1; |
| |
| if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP) |
| drv->start_mode_ap = 1; |
| |
| if (drv->hostapd) |
| nlmode = NL80211_IFTYPE_AP; |
| else if (bss->if_dynamic) |
| nlmode = nl80211_get_ifmode(bss); |
| else |
| nlmode = NL80211_IFTYPE_STATION; |
| |
| if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode"); |
| return -1; |
| } |
| |
| if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { |
| int ret = nl80211_set_p2pdev(bss, 1); |
| if (ret < 0) |
| wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device"); |
| nl80211_get_macaddr(bss); |
| return ret; |
| } |
| |
| if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) { |
| if (rfkill_is_blocked(drv->rfkill)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable " |
| "interface '%s' due to rfkill", |
| bss->ifname); |
| drv->if_disabled = 1; |
| send_rfkill_event = 1; |
| } else { |
| wpa_printf(MSG_ERROR, "nl80211: Could not set " |
| "interface '%s' UP", bss->ifname); |
| return -1; |
| } |
| } |
| |
| if (!drv->hostapd) |
| netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, |
| 1, IF_OPER_DORMANT); |
| |
| if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, |
| bss->addr)) |
| return -1; |
| |
| if (send_rfkill_event) { |
| eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill, |
| drv, drv->ctx); |
| } |
| |
| return 0; |
| } |
| |
| |
| static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv) |
| { |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", |
| drv->ifindex); |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| |
| return send_and_recv_msgs(drv, msg, NULL, NULL); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| /** |
| * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface |
| * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init() |
| * |
| * Shut down driver interface and processing of driver events. Free |
| * private data buffer if one was allocated in wpa_driver_nl80211_init(). |
| */ |
| static void wpa_driver_nl80211_deinit(struct i802_bss *bss) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| |
| bss->in_deinit = 1; |
| if (drv->data_tx_status) |
| eloop_unregister_read_sock(drv->eapol_tx_sock); |
| if (drv->eapol_tx_sock >= 0) |
| close(drv->eapol_tx_sock); |
| |
| if (bss->nl_preq) |
| wpa_driver_nl80211_probe_req_report(bss, 0); |
| if (bss->added_if_into_bridge) { |
| if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, |
| bss->ifname) < 0) |
| wpa_printf(MSG_INFO, "nl80211: Failed to remove " |
| "interface %s from bridge %s: %s", |
| bss->ifname, bss->brname, strerror(errno)); |
| } |
| if (bss->added_bridge) { |
| if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) |
| wpa_printf(MSG_INFO, "nl80211: Failed to remove " |
| "bridge %s: %s", |
| bss->brname, strerror(errno)); |
| } |
| |
| nl80211_remove_monitor_interface(drv); |
| |
| if (is_ap_interface(drv->nlmode)) |
| wpa_driver_nl80211_del_beacon(drv); |
| |
| if (drv->eapol_sock >= 0) { |
| eloop_unregister_read_sock(drv->eapol_sock); |
| close(drv->eapol_sock); |
| } |
| |
| if (drv->if_indices != drv->default_if_indices) |
| os_free(drv->if_indices); |
| |
| if (drv->disabled_11b_rates) |
| nl80211_disable_11b_rates(drv, drv->ifindex, 0); |
| |
| netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0, |
| IF_OPER_UP); |
| rfkill_deinit(drv->rfkill); |
| |
| eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); |
| |
| if (!drv->start_iface_up) |
| (void) i802_set_iface_flags(bss, 0); |
| if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) { |
| if (!drv->hostapd || !drv->start_mode_ap) |
| wpa_driver_nl80211_set_mode(bss, |
| NL80211_IFTYPE_STATION); |
| nl80211_mgmt_unsubscribe(bss, "deinit"); |
| } else { |
| nl80211_mgmt_unsubscribe(bss, "deinit"); |
| nl80211_del_p2pdev(bss); |
| } |
| nl_cb_put(drv->nl_cb); |
| |
| nl80211_destroy_bss(drv->first_bss); |
| |
| os_free(drv->filter_ssids); |
| |
| os_free(drv->auth_ie); |
| |
| if (drv->in_interface_list) |
| dl_list_del(&drv->list); |
| |
| os_free(drv->extended_capa); |
| os_free(drv->extended_capa_mask); |
| os_free(drv->first_bss); |
| os_free(drv); |
| } |
| |
| |
| /** |
| * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion |
| * @eloop_ctx: Driver private data |
| * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init() |
| * |
| * This function can be used as registered timeout when starting a scan to |
| * generate a scan completed event if the driver does not report this. |
| */ |
| static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx) |
| { |
| struct wpa_driver_nl80211_data *drv = eloop_ctx; |
| if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) { |
| wpa_driver_nl80211_set_mode(drv->first_bss, |
| drv->ap_scan_as_station); |
| drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED; |
| } |
| wpa_printf(MSG_DEBUG, "Scan timeout - try to get results"); |
| wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL); |
| } |
| |
| |
| static struct nl_msg * |
| nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd, |
| struct wpa_driver_scan_params *params, u64 *wdev_id) |
| { |
| struct nl_msg *msg; |
| size_t i; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return NULL; |
| |
| nl80211_cmd(drv, msg, 0, cmd); |
| |
| if (!wdev_id) |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| else |
| NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id); |
| |
| if (params->num_ssids) { |
| struct nlattr *ssids; |
| |
| ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); |
| if (ssids == NULL) |
| goto fail; |
| for (i = 0; i < params->num_ssids; i++) { |
| wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID", |
| params->ssids[i].ssid, |
| params->ssids[i].ssid_len); |
| if (nla_put(msg, i + 1, params->ssids[i].ssid_len, |
| params->ssids[i].ssid) < 0) |
| goto fail; |
| } |
| nla_nest_end(msg, ssids); |
| } |
| |
| if (params->extra_ies) { |
| wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs", |
| params->extra_ies, params->extra_ies_len); |
| if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len, |
| params->extra_ies) < 0) |
| goto fail; |
| } |
| |
| if (params->freqs) { |
| struct nlattr *freqs; |
| freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); |
| if (freqs == NULL) |
| goto fail; |
| for (i = 0; params->freqs[i]; i++) { |
| wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u " |
| "MHz", params->freqs[i]); |
| if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0) |
| goto fail; |
| } |
| nla_nest_end(msg, freqs); |
| } |
| |
| os_free(drv->filter_ssids); |
| drv->filter_ssids = params->filter_ssids; |
| params->filter_ssids = NULL; |
| drv->num_filter_ssids = params->num_filter_ssids; |
| |
| if (params->only_new_results) { |
| wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH"); |
| NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS, |
| NL80211_SCAN_FLAG_FLUSH); |
| } |
| |
| return msg; |
| |
| fail: |
| nla_put_failure: |
| nlmsg_free(msg); |
| return NULL; |
| } |
| |
| |
| /** |
| * wpa_driver_nl80211_scan - Request the driver to initiate scan |
| * @bss: Pointer to private driver data from wpa_driver_nl80211_init() |
| * @params: Scan parameters |
| * Returns: 0 on success, -1 on failure |
| */ |
| static int wpa_driver_nl80211_scan(struct i802_bss *bss, |
| struct wpa_driver_scan_params *params) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ret = -1, timeout; |
| struct nl_msg *msg = NULL; |
| |
| wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request"); |
| drv->scan_for_auth = 0; |
| |
| msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params, |
| bss->wdev_id_set ? &bss->wdev_id : NULL); |
| if (!msg) |
| return -1; |
| |
| if (params->p2p_probe) { |
| struct nlattr *rates; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates"); |
| |
| rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES); |
| if (rates == NULL) |
| goto nla_put_failure; |
| |
| /* |
| * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates |
| * by masking out everything else apart from the OFDM rates 6, |
| * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz |
| * rates are left enabled. |
| */ |
| NLA_PUT(msg, NL80211_BAND_2GHZ, 8, |
| "\x0c\x12\x18\x24\x30\x48\x60\x6c"); |
| nla_nest_end(msg, rates); |
| |
| NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); |
| } |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d " |
| "(%s)", ret, strerror(-ret)); |
| if (drv->hostapd && is_ap_interface(drv->nlmode)) { |
| enum nl80211_iftype old_mode = drv->nlmode; |
| |
| /* |
| * mac80211 does not allow scan requests in AP mode, so |
| * try to do this in station mode. |
| */ |
| if (wpa_driver_nl80211_set_mode( |
| bss, NL80211_IFTYPE_STATION)) |
| goto nla_put_failure; |
| |
| if (wpa_driver_nl80211_scan(bss, params)) { |
| wpa_driver_nl80211_set_mode(bss, drv->nlmode); |
| goto nla_put_failure; |
| } |
| |
| /* Restore AP mode when processing scan results */ |
| drv->ap_scan_as_station = old_mode; |
| ret = 0; |
| } else |
| goto nla_put_failure; |
| } |
| |
| drv->scan_state = SCAN_REQUESTED; |
| /* Not all drivers generate "scan completed" wireless event, so try to |
| * read results after a timeout. */ |
| timeout = 10; |
| if (drv->scan_complete_events) { |
| /* |
| * The driver seems to deliver events to notify when scan is |
| * complete, so use longer timeout to avoid race conditions |
| * with scanning and following association request. |
| */ |
| timeout = 30; |
| } |
| wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d " |
| "seconds", ret, timeout); |
| eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx); |
| eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, |
| drv, drv->ctx); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| /** |
| * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan |
| * @priv: Pointer to private driver data from wpa_driver_nl80211_init() |
| * @params: Scan parameters |
| * @interval: Interval between scan cycles in milliseconds |
| * Returns: 0 on success, -1 on failure or if not supported |
| */ |
| static int wpa_driver_nl80211_sched_scan(void *priv, |
| struct wpa_driver_scan_params *params, |
| u32 interval) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ret = -1; |
| struct nl_msg *msg; |
| size_t i; |
| |
| wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request"); |
| |
| #ifdef ANDROID |
| if (!drv->capa.sched_scan_supported) |
| return android_pno_start(bss, params); |
| #endif /* ANDROID */ |
| |
| msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params, |
| bss->wdev_id_set ? &bss->wdev_id : NULL); |
| if (!msg) |
| goto nla_put_failure; |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval); |
| |
| if ((drv->num_filter_ssids && |
| (int) drv->num_filter_ssids <= drv->capa.max_match_sets) || |
| params->filter_rssi) { |
| struct nlattr *match_sets; |
| match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); |
| if (match_sets == NULL) |
| goto nla_put_failure; |
| |
| for (i = 0; i < drv->num_filter_ssids; i++) { |
| struct nlattr *match_set_ssid; |
| wpa_hexdump_ascii(MSG_MSGDUMP, |
| "nl80211: Sched scan filter SSID", |
| drv->filter_ssids[i].ssid, |
| drv->filter_ssids[i].ssid_len); |
| |
| match_set_ssid = nla_nest_start(msg, i + 1); |
| if (match_set_ssid == NULL) |
| goto nla_put_failure; |
| NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID, |
| drv->filter_ssids[i].ssid_len, |
| drv->filter_ssids[i].ssid); |
| if (params->filter_rssi) |
| NLA_PUT_U32(msg, |
| NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, |
| params->filter_rssi); |
| |
| nla_nest_end(msg, match_set_ssid); |
| } |
| |
| /* |
| * Due to backward compatibility code, newer kernels treat this |
| * matchset (with only an RSSI filter) as the default for all |
| * other matchsets, unless it's the only one, in which case the |
| * matchset will actually allow all SSIDs above the RSSI. |
| */ |
| if (params->filter_rssi) { |
| struct nlattr *match_set_rssi; |
| match_set_rssi = nla_nest_start(msg, 0); |
| if (match_set_rssi == NULL) |
| goto nla_put_failure; |
| NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI, |
| params->filter_rssi); |
| wpa_printf(MSG_MSGDUMP, |
| "nl80211: Sched scan RSSI filter %d dBm", |
| params->filter_rssi); |
| nla_nest_end(msg, match_set_rssi); |
| } |
| |
| nla_nest_end(msg, match_sets); |
| } |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| |
| /* TODO: if we get an error here, we should fall back to normal scan */ |
| |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: " |
| "ret=%d (%s)", ret, strerror(-ret)); |
| goto nla_put_failure; |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - " |
| "scan interval %d msec", ret, interval); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| /** |
| * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan |
| * @priv: Pointer to private driver data from wpa_driver_nl80211_init() |
| * Returns: 0 on success, -1 on failure or if not supported |
| */ |
| static int wpa_driver_nl80211_stop_sched_scan(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ret = 0; |
| struct nl_msg *msg; |
| |
| #ifdef ANDROID |
| if (!drv->capa.sched_scan_supported) |
| return android_pno_stop(bss); |
| #endif /* ANDROID */ |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: " |
| "ret=%d (%s)", ret, strerror(-ret)); |
| goto nla_put_failure; |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie) |
| { |
| const u8 *end, *pos; |
| |
| if (ies == NULL) |
| return NULL; |
| |
| pos = ies; |
| end = ies + ies_len; |
| |
| while (pos + 1 < end) { |
| if (pos + 2 + pos[1] > end) |
| break; |
| if (pos[0] == ie) |
| return pos; |
| pos += 2 + pos[1]; |
| } |
| |
| return NULL; |
| } |
| |
| |
| static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv, |
| const u8 *ie, size_t ie_len) |
| { |
| const u8 *ssid; |
| size_t i; |
| |
| if (drv->filter_ssids == NULL) |
| return 0; |
| |
| ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID); |
| if (ssid == NULL) |
| return 1; |
| |
| for (i = 0; i < drv->num_filter_ssids; i++) { |
| if (ssid[1] == drv->filter_ssids[i].ssid_len && |
| os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) == |
| 0) |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| |
| static int bss_info_handler(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *bss[NL80211_BSS_MAX + 1]; |
| static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = { |
| [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC }, |
| [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 }, |
| [NL80211_BSS_TSF] = { .type = NLA_U64 }, |
| [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, |
| [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, |
| [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC }, |
| [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 }, |
| [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 }, |
| [NL80211_BSS_STATUS] = { .type = NLA_U32 }, |
| [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 }, |
| [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC }, |
| }; |
| struct nl80211_bss_info_arg *_arg = arg; |
| struct wpa_scan_results *res = _arg->res; |
| struct wpa_scan_res **tmp; |
| struct wpa_scan_res *r; |
| const u8 *ie, *beacon_ie; |
| size_t ie_len, beacon_ie_len; |
| u8 *pos; |
| size_t i; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| if (!tb[NL80211_ATTR_BSS]) |
| return NL_SKIP; |
| if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], |
| bss_policy)) |
| return NL_SKIP; |
| if (bss[NL80211_BSS_STATUS]) { |
| enum nl80211_bss_status status; |
| status = nla_get_u32(bss[NL80211_BSS_STATUS]); |
| if (status == NL80211_BSS_STATUS_ASSOCIATED && |
| bss[NL80211_BSS_FREQUENCY]) { |
| _arg->assoc_freq = |
| nla_get_u32(bss[NL80211_BSS_FREQUENCY]); |
| wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz", |
| _arg->assoc_freq); |
| } |
| if (status == NL80211_BSS_STATUS_ASSOCIATED && |
| bss[NL80211_BSS_BSSID]) { |
| os_memcpy(_arg->assoc_bssid, |
| nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN); |
| wpa_printf(MSG_DEBUG, "nl80211: Associated with " |
| MACSTR, MAC2STR(_arg->assoc_bssid)); |
| } |
| } |
| if (!res) |
| return NL_SKIP; |
| if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) { |
| ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]); |
| ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]); |
| } else { |
| ie = NULL; |
| ie_len = 0; |
| } |
| if (bss[NL80211_BSS_BEACON_IES]) { |
| beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]); |
| beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]); |
| } else { |
| beacon_ie = NULL; |
| beacon_ie_len = 0; |
| } |
| |
| if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie, |
| ie ? ie_len : beacon_ie_len)) |
| return NL_SKIP; |
| |
| r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len); |
| if (r == NULL) |
| return NL_SKIP; |
| if (bss[NL80211_BSS_BSSID]) |
| os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]), |
| ETH_ALEN); |
| if (bss[NL80211_BSS_FREQUENCY]) |
| r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]); |
| if (bss[NL80211_BSS_BEACON_INTERVAL]) |
| r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]); |
| if (bss[NL80211_BSS_CAPABILITY]) |
| r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]); |
| r->flags |= WPA_SCAN_NOISE_INVALID; |
| if (bss[NL80211_BSS_SIGNAL_MBM]) { |
| r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]); |
| r->level /= 100; /* mBm to dBm */ |
| r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID; |
| } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) { |
| r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]); |
| r->flags |= WPA_SCAN_QUAL_INVALID; |
| } else |
| r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID; |
| if (bss[NL80211_BSS_TSF]) |
| r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]); |
| if (bss[NL80211_BSS_SEEN_MS_AGO]) |
| r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]); |
| r->ie_len = ie_len; |
| pos = (u8 *) (r + 1); |
| if (ie) { |
| os_memcpy(pos, ie, ie_len); |
| pos += ie_len; |
| } |
| r->beacon_ie_len = beacon_ie_len; |
| if (beacon_ie) |
| os_memcpy(pos, beacon_ie, beacon_ie_len); |
| |
| if (bss[NL80211_BSS_STATUS]) { |
| enum nl80211_bss_status status; |
| status = nla_get_u32(bss[NL80211_BSS_STATUS]); |
| switch (status) { |
| case NL80211_BSS_STATUS_AUTHENTICATED: |
| r->flags |= WPA_SCAN_AUTHENTICATED; |
| break; |
| case NL80211_BSS_STATUS_ASSOCIATED: |
| r->flags |= WPA_SCAN_ASSOCIATED; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /* |
| * cfg80211 maintains separate BSS table entries for APs if the same |
| * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does |
| * not use frequency as a separate key in the BSS table, so filter out |
| * duplicated entries. Prefer associated BSS entry in such a case in |
| * order to get the correct frequency into the BSS table. Similarly, |
| * prefer newer entries over older. |
| */ |
| for (i = 0; i < res->num; i++) { |
| const u8 *s1, *s2; |
| if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0) |
| continue; |
| |
| s1 = nl80211_get_ie((u8 *) (res->res[i] + 1), |
| res->res[i]->ie_len, WLAN_EID_SSID); |
| s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID); |
| if (s1 == NULL || s2 == NULL || s1[1] != s2[1] || |
| os_memcmp(s1, s2, 2 + s1[1]) != 0) |
| continue; |
| |
| /* Same BSSID,SSID was already included in scan results */ |
| wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result " |
| "for " MACSTR, MAC2STR(r->bssid)); |
| |
| if (((r->flags & WPA_SCAN_ASSOCIATED) && |
| !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) || |
| r->age < res->res[i]->age) { |
| os_free(res->res[i]); |
| res->res[i] = r; |
| } else |
| os_free(r); |
| return NL_SKIP; |
| } |
| |
| tmp = os_realloc_array(res->res, res->num + 1, |
| sizeof(struct wpa_scan_res *)); |
| if (tmp == NULL) { |
| os_free(r); |
| return NL_SKIP; |
| } |
| tmp[res->num++] = r; |
| res->res = tmp; |
| |
| return NL_SKIP; |
| } |
| |
| |
| static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv, |
| const u8 *addr) |
| { |
| if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) { |
| wpa_printf(MSG_DEBUG, "nl80211: Clear possible state " |
| "mismatch (" MACSTR ")", MAC2STR(addr)); |
| wpa_driver_nl80211_mlme(drv, addr, |
| NL80211_CMD_DEAUTHENTICATE, |
| WLAN_REASON_PREV_AUTH_NOT_VALID, 1); |
| } |
| } |
| |
| |
| static void wpa_driver_nl80211_check_bss_status( |
| struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res) |
| { |
| size_t i; |
| |
| for (i = 0; i < res->num; i++) { |
| struct wpa_scan_res *r = res->res[i]; |
| if (r->flags & WPA_SCAN_AUTHENTICATED) { |
| wpa_printf(MSG_DEBUG, "nl80211: Scan results " |
| "indicates BSS status with " MACSTR |
| " as authenticated", |
| MAC2STR(r->bssid)); |
| if (is_sta_interface(drv->nlmode) && |
| os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 && |
| os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) != |
| 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID" |
| " in local state (auth=" MACSTR |
| " assoc=" MACSTR ")", |
| MAC2STR(drv->auth_bssid), |
| MAC2STR(drv->bssid)); |
| clear_state_mismatch(drv, r->bssid); |
| } |
| } |
| |
| if (r->flags & WPA_SCAN_ASSOCIATED) { |
| wpa_printf(MSG_DEBUG, "nl80211: Scan results " |
| "indicate BSS status with " MACSTR |
| " as associated", |
| MAC2STR(r->bssid)); |
| if (is_sta_interface(drv->nlmode) && |
| !drv->associated) { |
| wpa_printf(MSG_DEBUG, "nl80211: Local state " |
| "(not associated) does not match " |
| "with BSS state"); |
| clear_state_mismatch(drv, r->bssid); |
| } else if (is_sta_interface(drv->nlmode) && |
| os_memcmp(drv->bssid, r->bssid, ETH_ALEN) != |
| 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Local state " |
| "(associated with " MACSTR ") does " |
| "not match with BSS state", |
| MAC2STR(drv->bssid)); |
| clear_state_mismatch(drv, r->bssid); |
| clear_state_mismatch(drv, drv->bssid); |
| } |
| } |
| } |
| } |
| |
| |
| static struct wpa_scan_results * |
| nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv) |
| { |
| struct nl_msg *msg; |
| struct wpa_scan_results *res; |
| int ret; |
| struct nl80211_bss_info_arg arg; |
| |
| res = os_zalloc(sizeof(*res)); |
| if (res == NULL) |
| return NULL; |
| msg = nlmsg_alloc(); |
| if (!msg) |
| goto nla_put_failure; |
| |
| nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN); |
| if (nl80211_set_iface_id(msg, drv->first_bss) < 0) |
| goto nla_put_failure; |
| |
| arg.drv = drv; |
| arg.res = res; |
| ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg); |
| msg = NULL; |
| if (ret == 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu " |
| "BSSes)", (unsigned long) res->num); |
| nl80211_get_noise_for_scan_results(drv, res); |
| return res; |
| } |
| wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " |
| "(%s)", ret, strerror(-ret)); |
| nla_put_failure: |
| nlmsg_free(msg); |
| wpa_scan_results_free(res); |
| return NULL; |
| } |
| |
| |
| /** |
| * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results |
| * @priv: Pointer to private wext data from wpa_driver_nl80211_init() |
| * Returns: Scan results on success, -1 on failure |
| */ |
| static struct wpa_scan_results * |
| wpa_driver_nl80211_get_scan_results(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct wpa_scan_results *res; |
| |
| res = nl80211_get_scan_results(drv); |
| if (res) |
| wpa_driver_nl80211_check_bss_status(drv, res); |
| return res; |
| } |
| |
| |
| static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv) |
| { |
| struct wpa_scan_results *res; |
| size_t i; |
| |
| res = nl80211_get_scan_results(drv); |
| if (res == NULL) { |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results"); |
| return; |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Scan result dump"); |
| for (i = 0; i < res->num; i++) { |
| struct wpa_scan_res *r = res->res[i]; |
| wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s", |
| (int) i, (int) res->num, MAC2STR(r->bssid), |
| r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "", |
| r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : ""); |
| } |
| |
| wpa_scan_results_free(res); |
| } |
| |
| |
| static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len) |
| { |
| switch (alg) { |
| case WPA_ALG_WEP: |
| if (key_len == 5) |
| return WLAN_CIPHER_SUITE_WEP40; |
| return WLAN_CIPHER_SUITE_WEP104; |
| case WPA_ALG_TKIP: |
| return WLAN_CIPHER_SUITE_TKIP; |
| case WPA_ALG_CCMP: |
| return WLAN_CIPHER_SUITE_CCMP; |
| case WPA_ALG_GCMP: |
| return WLAN_CIPHER_SUITE_GCMP; |
| case WPA_ALG_CCMP_256: |
| return WLAN_CIPHER_SUITE_CCMP_256; |
| case WPA_ALG_GCMP_256: |
| return WLAN_CIPHER_SUITE_GCMP_256; |
| case WPA_ALG_IGTK: |
| return WLAN_CIPHER_SUITE_AES_CMAC; |
| case WPA_ALG_BIP_GMAC_128: |
| return WLAN_CIPHER_SUITE_BIP_GMAC_128; |
| case WPA_ALG_BIP_GMAC_256: |
| return WLAN_CIPHER_SUITE_BIP_GMAC_256; |
| case WPA_ALG_BIP_CMAC_256: |
| return WLAN_CIPHER_SUITE_BIP_CMAC_256; |
| case WPA_ALG_SMS4: |
| return WLAN_CIPHER_SUITE_SMS4; |
| case WPA_ALG_KRK: |
| return WLAN_CIPHER_SUITE_KRK; |
| case WPA_ALG_NONE: |
| case WPA_ALG_PMK: |
| wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d", |
| alg); |
| return 0; |
| } |
| |
| wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d", |
| alg); |
| return 0; |
| } |
| |
| |
| static u32 wpa_cipher_to_cipher_suite(unsigned int cipher) |
| { |
| switch (cipher) { |
| case WPA_CIPHER_CCMP_256: |
| return WLAN_CIPHER_SUITE_CCMP_256; |
| case WPA_CIPHER_GCMP_256: |
| return WLAN_CIPHER_SUITE_GCMP_256; |
| case WPA_CIPHER_CCMP: |
| return WLAN_CIPHER_SUITE_CCMP; |
| case WPA_CIPHER_GCMP: |
| return WLAN_CIPHER_SUITE_GCMP; |
| case WPA_CIPHER_TKIP: |
| return WLAN_CIPHER_SUITE_TKIP; |
| case WPA_CIPHER_WEP104: |
| return WLAN_CIPHER_SUITE_WEP104; |
| case WPA_CIPHER_WEP40: |
| return WLAN_CIPHER_SUITE_WEP40; |
| case WPA_CIPHER_GTK_NOT_USED: |
| return WLAN_CIPHER_SUITE_NO_GROUP_ADDR; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[], |
| int max_suites) |
| { |
| int num_suites = 0; |
| |
| if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256) |
| suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256; |
| if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256) |
| suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256; |
| if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP) |
| suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP; |
| if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP) |
| suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP; |
| if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP) |
| suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP; |
| if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104) |
| suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104; |
| if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40) |
| suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40; |
| |
| return num_suites; |
| } |
| |
| |
| static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss, |
| enum wpa_alg alg, const u8 *addr, |
| int key_idx, int set_tx, |
| const u8 *seq, size_t seq_len, |
| const u8 *key, size_t key_len) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ifindex; |
| struct nl_msg *msg; |
| int ret; |
| int tdls = 0; |
| |
| /* Ignore for P2P Device */ |
| if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) |
| return 0; |
| |
| ifindex = if_nametoindex(ifname); |
| wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d " |
| "set_tx=%d seq_len=%lu key_len=%lu", |
| __func__, ifindex, ifname, alg, addr, key_idx, set_tx, |
| (unsigned long) seq_len, (unsigned long) key_len); |
| #ifdef CONFIG_TDLS |
| if (key_idx == -1) { |
| key_idx = 0; |
| tdls = 1; |
| } |
| #endif /* CONFIG_TDLS */ |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| if (alg == WPA_ALG_NONE) { |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY); |
| } else { |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY); |
| NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key); |
| NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, |
| wpa_alg_to_cipher_suite(alg, key_len)); |
| } |
| |
| if (seq && seq_len) |
| NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq); |
| |
| if (addr && !is_broadcast_ether_addr(addr)) { |
| wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr)); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
| |
| if (alg != WPA_ALG_WEP && key_idx && !set_tx) { |
| wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK"); |
| NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, |
| NL80211_KEYTYPE_GROUP); |
| } |
| } else if (addr && is_broadcast_ether_addr(addr)) { |
| struct nlattr *types; |
| |
| wpa_printf(MSG_DEBUG, " broadcast key"); |
| |
| types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); |
| if (!types) |
| goto nla_put_failure; |
| NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); |
| nla_nest_end(msg, types); |
| } |
| NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE) |
| ret = 0; |
| if (ret) |
| wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)", |
| ret, strerror(-ret)); |
| |
| /* |
| * If we failed or don't need to set the default TX key (below), |
| * we're done here. |
| */ |
| if (ret || !set_tx || alg == WPA_ALG_NONE || tdls) |
| return ret; |
| if (is_ap_interface(drv->nlmode) && addr && |
| !is_broadcast_ether_addr(addr)) |
| return ret; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY); |
| NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); |
| if (alg == WPA_ALG_IGTK) |
| NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT); |
| else |
| NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT); |
| if (addr && is_broadcast_ether_addr(addr)) { |
| struct nlattr *types; |
| |
| types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); |
| if (!types) |
| goto nla_put_failure; |
| NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST); |
| nla_nest_end(msg, types); |
| } else if (addr) { |
| struct nlattr *types; |
| |
| types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES); |
| if (!types) |
| goto nla_put_failure; |
| NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST); |
| nla_nest_end(msg, types); |
| } |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| if (ret == -ENOENT) |
| ret = 0; |
| if (ret) |
| wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; " |
| "err=%d %s)", ret, strerror(-ret)); |
| return ret; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg, |
| int key_idx, int defkey, |
| const u8 *seq, size_t seq_len, |
| const u8 *key, size_t key_len) |
| { |
| struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY); |
| if (!key_attr) |
| return -1; |
| |
| if (defkey && alg == WPA_ALG_IGTK) |
| NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT); |
| else if (defkey) |
| NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); |
| |
| NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx); |
| |
| NLA_PUT_U32(msg, NL80211_KEY_CIPHER, |
| wpa_alg_to_cipher_suite(alg, key_len)); |
| |
| if (seq && seq_len) |
| NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq); |
| |
| NLA_PUT(msg, NL80211_KEY_DATA, key_len, key); |
| |
| nla_nest_end(msg, key_attr); |
| |
| return 0; |
| nla_put_failure: |
| return -1; |
| } |
| |
| |
| static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params, |
| struct nl_msg *msg) |
| { |
| int i, privacy = 0; |
| struct nlattr *nl_keys, *nl_key; |
| |
| for (i = 0; i < 4; i++) { |
| if (!params->wep_key[i]) |
| continue; |
| privacy = 1; |
| break; |
| } |
| if (params->wps == WPS_MODE_PRIVACY) |
| privacy = 1; |
| if (params->pairwise_suite && |
| params->pairwise_suite != WPA_CIPHER_NONE) |
| privacy = 1; |
| |
| if (!privacy) |
| return 0; |
| |
| NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); |
| |
| nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS); |
| if (!nl_keys) |
| goto nla_put_failure; |
| |
| for (i = 0; i < 4; i++) { |
| if (!params->wep_key[i]) |
| continue; |
| |
| nl_key = nla_nest_start(msg, i); |
| if (!nl_key) |
| goto nla_put_failure; |
| |
| NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i], |
| params->wep_key[i]); |
| if (params->wep_key_len[i] == 5) |
| NLA_PUT_U32(msg, NL80211_KEY_CIPHER, |
| WLAN_CIPHER_SUITE_WEP40); |
| else |
| NLA_PUT_U32(msg, NL80211_KEY_CIPHER, |
| WLAN_CIPHER_SUITE_WEP104); |
| |
| NLA_PUT_U8(msg, NL80211_KEY_IDX, i); |
| |
| if (i == params->wep_tx_keyidx) |
| NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); |
| |
| nla_nest_end(msg, nl_key); |
| } |
| nla_nest_end(msg, nl_keys); |
| |
| return 0; |
| |
| nla_put_failure: |
| return -ENOBUFS; |
| } |
| |
| |
| static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, |
| const u8 *addr, int cmd, u16 reason_code, |
| int local_state_change) |
| { |
| int ret = -1; |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, cmd); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code); |
| if (addr) |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
| if (local_state_change) |
| NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_dbg(drv->ctx, MSG_DEBUG, |
| "nl80211: MLME command failed: reason=%u ret=%d (%s)", |
| reason_code, ret, strerror(-ret)); |
| goto nla_put_failure; |
| } |
| ret = 0; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv, |
| int reason_code) |
| { |
| int ret; |
| |
| wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code); |
| nl80211_mark_disconnected(drv); |
| /* Disconnect command doesn't need BSSID - it uses cached value */ |
| ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT, |
| reason_code, 0); |
| /* |
| * For locally generated disconnect, supplicant already generates a |
| * DEAUTH event, so ignore the event from NL80211. |
| */ |
| drv->ignore_next_local_disconnect = ret == 0; |
| |
| return ret; |
| } |
| |
| |
| static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss, |
| const u8 *addr, int reason_code) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) |
| return wpa_driver_nl80211_disconnect(drv, reason_code); |
| wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)", |
| __func__, MAC2STR(addr), reason_code); |
| nl80211_mark_disconnected(drv); |
| if (drv->nlmode == NL80211_IFTYPE_ADHOC) |
| return nl80211_leave_ibss(drv); |
| return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE, |
| reason_code, 0); |
| } |
| |
| |
| static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv, |
| struct wpa_driver_auth_params *params) |
| { |
| int i; |
| |
| drv->auth_freq = params->freq; |
| drv->auth_alg = params->auth_alg; |
| drv->auth_wep_tx_keyidx = params->wep_tx_keyidx; |
| drv->auth_local_state_change = params->local_state_change; |
| drv->auth_p2p = params->p2p; |
| |
| if (params->bssid) |
| os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN); |
| else |
| os_memset(drv->auth_bssid_, 0, ETH_ALEN); |
| |
| if (params->ssid) { |
| os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len); |
| drv->auth_ssid_len = params->ssid_len; |
| } else |
| drv->auth_ssid_len = 0; |
| |
| |
| os_free(drv->auth_ie); |
| drv->auth_ie = NULL; |
| drv->auth_ie_len = 0; |
| if (params->ie) { |
| drv->auth_ie = os_malloc(params->ie_len); |
| if (drv->auth_ie) { |
| os_memcpy(drv->auth_ie, params->ie, params->ie_len); |
| drv->auth_ie_len = params->ie_len; |
| } |
| } |
| |
| for (i = 0; i < 4; i++) { |
| if (params->wep_key[i] && params->wep_key_len[i] && |
| params->wep_key_len[i] <= 16) { |
| os_memcpy(drv->auth_wep_key[i], params->wep_key[i], |
| params->wep_key_len[i]); |
| drv->auth_wep_key_len[i] = params->wep_key_len[i]; |
| } else |
| drv->auth_wep_key_len[i] = 0; |
| } |
| } |
| |
| |
| static int wpa_driver_nl80211_authenticate( |
| struct i802_bss *bss, struct wpa_driver_auth_params *params) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ret = -1, i; |
| struct nl_msg *msg; |
| enum nl80211_auth_type type; |
| enum nl80211_iftype nlmode; |
| int count = 0; |
| int is_retry; |
| |
| is_retry = drv->retry_auth; |
| drv->retry_auth = 0; |
| |
| nl80211_mark_disconnected(drv); |
| os_memset(drv->auth_bssid, 0, ETH_ALEN); |
| if (params->bssid) |
| os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN); |
| else |
| os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN); |
| /* FIX: IBSS mode */ |
| nlmode = params->p2p ? |
| NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; |
| if (drv->nlmode != nlmode && |
| wpa_driver_nl80211_set_mode(bss, nlmode) < 0) |
| return -1; |
| |
| retry: |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)", |
| drv->ifindex); |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE); |
| |
| for (i = 0; i < 4; i++) { |
| if (!params->wep_key[i]) |
| continue; |
| wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP, |
| NULL, i, |
| i == params->wep_tx_keyidx, NULL, 0, |
| params->wep_key[i], |
| params->wep_key_len[i]); |
| if (params->wep_tx_keyidx != i) |
| continue; |
| if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0, |
| params->wep_key[i], params->wep_key_len[i])) { |
| nlmsg_free(msg); |
| return -1; |
| } |
| } |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| if (params->bssid) { |
| wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, |
| MAC2STR(params->bssid)); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); |
| } |
| if (params->freq) { |
| wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); |
| } |
| if (params->ssid) { |
| wpa_hexdump_ascii(MSG_DEBUG, " * SSID", |
| params->ssid, params->ssid_len); |
| NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, |
| params->ssid); |
| } |
| wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len); |
| if (params->ie) |
| NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie); |
| if (params->sae_data) { |
| wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data, |
| params->sae_data_len); |
| NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len, |
| params->sae_data); |
| } |
| if (params->auth_alg & WPA_AUTH_ALG_OPEN) |
| type = NL80211_AUTHTYPE_OPEN_SYSTEM; |
| else if (params->auth_alg & WPA_AUTH_ALG_SHARED) |
| type = NL80211_AUTHTYPE_SHARED_KEY; |
| else if (params->auth_alg & WPA_AUTH_ALG_LEAP) |
| type = NL80211_AUTHTYPE_NETWORK_EAP; |
| else if (params->auth_alg & WPA_AUTH_ALG_FT) |
| type = NL80211_AUTHTYPE_FT; |
| else if (params->auth_alg & WPA_AUTH_ALG_SAE) |
| type = NL80211_AUTHTYPE_SAE; |
| else |
| goto nla_put_failure; |
| wpa_printf(MSG_DEBUG, " * Auth Type %d", type); |
| NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); |
| if (params->local_state_change) { |
| wpa_printf(MSG_DEBUG, " * Local state change only"); |
| NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE); |
| } |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_dbg(drv->ctx, MSG_DEBUG, |
| "nl80211: MLME command failed (auth): ret=%d (%s)", |
| ret, strerror(-ret)); |
| count++; |
| if (ret == -EALREADY && count == 1 && params->bssid && |
| !params->local_state_change) { |
| /* |
| * mac80211 does not currently accept new |
| * authentication if we are already authenticated. As a |
| * workaround, force deauthentication and try again. |
| */ |
| wpa_printf(MSG_DEBUG, "nl80211: Retry authentication " |
| "after forced deauthentication"); |
| wpa_driver_nl80211_deauthenticate( |
| bss, params->bssid, |
| WLAN_REASON_PREV_AUTH_NOT_VALID); |
| nlmsg_free(msg); |
| goto retry; |
| } |
| |
| if (ret == -ENOENT && params->freq && !is_retry) { |
| /* |
| * cfg80211 has likely expired the BSS entry even |
| * though it was previously available in our internal |
| * BSS table. To recover quickly, start a single |
| * channel scan on the specified channel. |
| */ |
| struct wpa_driver_scan_params scan; |
| int freqs[2]; |
| |
| os_memset(&scan, 0, sizeof(scan)); |
| scan.num_ssids = 1; |
| if (params->ssid) { |
| scan.ssids[0].ssid = params->ssid; |
| scan.ssids[0].ssid_len = params->ssid_len; |
| } |
| freqs[0] = params->freq; |
| freqs[1] = 0; |
| scan.freqs = freqs; |
| wpa_printf(MSG_DEBUG, "nl80211: Trigger single " |
| "channel scan to refresh cfg80211 BSS " |
| "entry"); |
| ret = wpa_driver_nl80211_scan(bss, &scan); |
| if (ret == 0) { |
| nl80211_copy_auth_params(drv, params); |
| drv->scan_for_auth = 1; |
| } |
| } else if (is_retry) { |
| /* |
| * Need to indicate this with an event since the return |
| * value from the retry is not delivered to core code. |
| */ |
| union wpa_event_data event; |
| wpa_printf(MSG_DEBUG, "nl80211: Authentication retry " |
| "failed"); |
| os_memset(&event, 0, sizeof(event)); |
| os_memcpy(event.timeout_event.addr, drv->auth_bssid_, |
| ETH_ALEN); |
| wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT, |
| &event); |
| } |
| |
| goto nla_put_failure; |
| } |
| ret = 0; |
| wpa_printf(MSG_DEBUG, "nl80211: Authentication request send " |
| "successfully"); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int wpa_driver_nl80211_authenticate_retry( |
| struct wpa_driver_nl80211_data *drv) |
| { |
| struct wpa_driver_auth_params params; |
| struct i802_bss *bss = drv->first_bss; |
| int i; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again"); |
| |
| os_memset(¶ms, 0, sizeof(params)); |
| params.freq = drv->auth_freq; |
| params.auth_alg = drv->auth_alg; |
| params.wep_tx_keyidx = drv->auth_wep_tx_keyidx; |
| params.local_state_change = drv->auth_local_state_change; |
| params.p2p = drv->auth_p2p; |
| |
| if (!is_zero_ether_addr(drv->auth_bssid_)) |
| params.bssid = drv->auth_bssid_; |
| |
| if (drv->auth_ssid_len) { |
| params.ssid = drv->auth_ssid; |
| params.ssid_len = drv->auth_ssid_len; |
| } |
| |
| params.ie = drv->auth_ie; |
| params.ie_len = drv->auth_ie_len; |
| |
| for (i = 0; i < 4; i++) { |
| if (drv->auth_wep_key_len[i]) { |
| params.wep_key[i] = drv->auth_wep_key[i]; |
| params.wep_key_len[i] = drv->auth_wep_key_len[i]; |
| } |
| } |
| |
| drv->retry_auth = 1; |
| return wpa_driver_nl80211_authenticate(bss, ¶ms); |
| } |
| |
| |
| struct phy_info_arg { |
| u16 *num_modes; |
| struct hostapd_hw_modes *modes; |
| int last_mode, last_chan_idx; |
| }; |
| |
| static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa, |
| struct nlattr *ampdu_factor, |
| struct nlattr *ampdu_density, |
| struct nlattr *mcs_set) |
| { |
| if (capa) |
| mode->ht_capab = nla_get_u16(capa); |
| |
| if (ampdu_factor) |
| mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03; |
| |
| if (ampdu_density) |
| mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2; |
| |
| if (mcs_set && nla_len(mcs_set) >= 16) { |
| u8 *mcs; |
| mcs = nla_data(mcs_set); |
| os_memcpy(mode->mcs_set, mcs, 16); |
| } |
| } |
| |
| |
| static void phy_info_vht_capa(struct hostapd_hw_modes *mode, |
| struct nlattr *capa, |
| struct nlattr *mcs_set) |
| { |
| if (capa) |
| mode->vht_capab = nla_get_u32(capa); |
| |
| if (mcs_set && nla_len(mcs_set) >= 8) { |
| u8 *mcs; |
| mcs = nla_data(mcs_set); |
| os_memcpy(mode->vht_mcs_set, mcs, 8); |
| } |
| } |
| |
| |
| static void phy_info_freq(struct hostapd_hw_modes *mode, |
| struct hostapd_channel_data *chan, |
| struct nlattr *tb_freq[]) |
| { |
| u8 channel; |
| chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]); |
| chan->flag = 0; |
| if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES) |
| chan->chan = channel; |
| |
| if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED]) |
| chan->flag |= HOSTAPD_CHAN_DISABLED; |
| if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR]) |
| chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS; |
| if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR]) |
| chan->flag |= HOSTAPD_CHAN_RADAR; |
| |
| if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) { |
| enum nl80211_dfs_state state = |
| nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]); |
| |
| switch (state) { |
| case NL80211_DFS_USABLE: |
| chan->flag |= HOSTAPD_CHAN_DFS_USABLE; |
| break; |
| case NL80211_DFS_AVAILABLE: |
| chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE; |
| break; |
| case NL80211_DFS_UNAVAILABLE: |
| chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE; |
| break; |
| } |
| } |
| } |
| |
| |
| static int phy_info_freqs(struct phy_info_arg *phy_info, |
| struct hostapd_hw_modes *mode, struct nlattr *tb) |
| { |
| static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { |
| [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, |
| [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG }, |
| [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG }, |
| [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG }, |
| [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, |
| [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 }, |
| }; |
| int new_channels = 0; |
| struct hostapd_channel_data *channel; |
| struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1]; |
| struct nlattr *nl_freq; |
| int rem_freq, idx; |
| |
| if (tb == NULL) |
| return NL_OK; |
| |
| nla_for_each_nested(nl_freq, tb, rem_freq) { |
| nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, |
| nla_data(nl_freq), nla_len(nl_freq), freq_policy); |
| if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) |
| continue; |
| new_channels++; |
| } |
| |
| channel = os_realloc_array(mode->channels, |
| mode->num_channels + new_channels, |
| sizeof(struct hostapd_channel_data)); |
| if (!channel) |
| return NL_SKIP; |
| |
| mode->channels = channel; |
| mode->num_channels += new_channels; |
| |
| idx = phy_info->last_chan_idx; |
| |
| nla_for_each_nested(nl_freq, tb, rem_freq) { |
| nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, |
| nla_data(nl_freq), nla_len(nl_freq), freq_policy); |
| if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ]) |
| continue; |
| phy_info_freq(mode, &mode->channels[idx], tb_freq); |
| idx++; |
| } |
| phy_info->last_chan_idx = idx; |
| |
| return NL_OK; |
| } |
| |
| |
| static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb) |
| { |
| static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = { |
| [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 }, |
| [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = |
| { .type = NLA_FLAG }, |
| }; |
| struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1]; |
| struct nlattr *nl_rate; |
| int rem_rate, idx; |
| |
| if (tb == NULL) |
| return NL_OK; |
| |
| nla_for_each_nested(nl_rate, tb, rem_rate) { |
| nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, |
| nla_data(nl_rate), nla_len(nl_rate), |
| rate_policy); |
| if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) |
| continue; |
| mode->num_rates++; |
| } |
| |
| mode->rates = os_calloc(mode->num_rates, sizeof(int)); |
| if (!mode->rates) |
| return NL_SKIP; |
| |
| idx = 0; |
| |
| nla_for_each_nested(nl_rate, tb, rem_rate) { |
| nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, |
| nla_data(nl_rate), nla_len(nl_rate), |
| rate_policy); |
| if (!tb_rate[NL80211_BITRATE_ATTR_RATE]) |
| continue; |
| mode->rates[idx] = nla_get_u32( |
| tb_rate[NL80211_BITRATE_ATTR_RATE]); |
| idx++; |
| } |
| |
| return NL_OK; |
| } |
| |
| |
| static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band) |
| { |
| struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1]; |
| struct hostapd_hw_modes *mode; |
| int ret; |
| |
| if (phy_info->last_mode != nl_band->nla_type) { |
| mode = os_realloc_array(phy_info->modes, |
| *phy_info->num_modes + 1, |
| sizeof(*mode)); |
| if (!mode) |
| return NL_SKIP; |
| phy_info->modes = mode; |
| |
| mode = &phy_info->modes[*(phy_info->num_modes)]; |
| os_memset(mode, 0, sizeof(*mode)); |
| mode->mode = NUM_HOSTAPD_MODES; |
| mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN | |
| HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN; |
| |
| /* |
| * Unsupported VHT MCS stream is defined as value 3, so the VHT |
| * MCS RX/TX map must be initialized with 0xffff to mark all 8 |
| * possible streams as unsupported. This will be overridden if |
| * driver advertises VHT support. |
| */ |
| mode->vht_mcs_set[0] = 0xff; |
| mode->vht_mcs_set[1] = 0xff; |
| mode->vht_mcs_set[4] = 0xff; |
| mode->vht_mcs_set[5] = 0xff; |
| |
| *(phy_info->num_modes) += 1; |
| phy_info->last_mode = nl_band->nla_type; |
| phy_info->last_chan_idx = 0; |
| } else |
| mode = &phy_info->modes[*(phy_info->num_modes) - 1]; |
| |
| nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band), |
| nla_len(nl_band), NULL); |
| |
| phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA], |
| tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR], |
| tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY], |
| tb_band[NL80211_BAND_ATTR_HT_MCS_SET]); |
| phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA], |
| tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]); |
| ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]); |
| if (ret != NL_OK) |
| return ret; |
| ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]); |
| if (ret != NL_OK) |
| return ret; |
| |
| return NL_OK; |
| } |
| |
| |
| static int phy_info_handler(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct phy_info_arg *phy_info = arg; |
| struct nlattr *nl_band; |
| int rem_band; |
| |
| nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| if (!tb_msg[NL80211_ATTR_WIPHY_BANDS]) |
| return NL_SKIP; |
| |
| nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) |
| { |
| int res = phy_info_band(phy_info, nl_band); |
| if (res != NL_OK) |
| return res; |
| } |
| |
| return NL_SKIP; |
| } |
| |
| |
| static struct hostapd_hw_modes * |
| wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes, |
| u16 *num_modes) |
| { |
| u16 m; |
| struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode; |
| int i, mode11g_idx = -1; |
| |
| /* heuristic to set up modes */ |
| for (m = 0; m < *num_modes; m++) { |
| if (!modes[m].num_channels) |
| continue; |
| if (modes[m].channels[0].freq < 4000) { |
| modes[m].mode = HOSTAPD_MODE_IEEE80211B; |
| for (i = 0; i < modes[m].num_rates; i++) { |
| if (modes[m].rates[i] > 200) { |
| modes[m].mode = HOSTAPD_MODE_IEEE80211G; |
| break; |
| } |
| } |
| } else if (modes[m].channels[0].freq > 50000) |
| modes[m].mode = HOSTAPD_MODE_IEEE80211AD; |
| else |
| modes[m].mode = HOSTAPD_MODE_IEEE80211A; |
| } |
| |
| /* If only 802.11g mode is included, use it to construct matching |
| * 802.11b mode data. */ |
| |
| for (m = 0; m < *num_modes; m++) { |
| if (modes[m].mode == HOSTAPD_MODE_IEEE80211B) |
| return modes; /* 802.11b already included */ |
| if (modes[m].mode == HOSTAPD_MODE_IEEE80211G) |
| mode11g_idx = m; |
| } |
| |
| if (mode11g_idx < 0) |
| return modes; /* 2.4 GHz band not supported at all */ |
| |
| nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes)); |
| if (nmodes == NULL) |
| return modes; /* Could not add 802.11b mode */ |
| |
| mode = &nmodes[*num_modes]; |
| os_memset(mode, 0, sizeof(*mode)); |
| (*num_modes)++; |
| modes = nmodes; |
| |
| mode->mode = HOSTAPD_MODE_IEEE80211B; |
| |
| mode11g = &modes[mode11g_idx]; |
| mode->num_channels = mode11g->num_channels; |
| mode->channels = os_malloc(mode11g->num_channels * |
| sizeof(struct hostapd_channel_data)); |
| if (mode->channels == NULL) { |
| (*num_modes)--; |
| return modes; /* Could not add 802.11b mode */ |
| } |
| os_memcpy(mode->channels, mode11g->channels, |
| mode11g->num_channels * sizeof(struct hostapd_channel_data)); |
| |
| mode->num_rates = 0; |
| mode->rates = os_malloc(4 * sizeof(int)); |
| if (mode->rates == NULL) { |
| os_free(mode->channels); |
| (*num_modes)--; |
| return modes; /* Could not add 802.11b mode */ |
| } |
| |
| for (i = 0; i < mode11g->num_rates; i++) { |
| if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 && |
| mode11g->rates[i] != 55 && mode11g->rates[i] != 110) |
| continue; |
| mode->rates[mode->num_rates] = mode11g->rates[i]; |
| mode->num_rates++; |
| if (mode->num_rates == 4) |
| break; |
| } |
| |
| if (mode->num_rates == 0) { |
| os_free(mode->channels); |
| os_free(mode->rates); |
| (*num_modes)--; |
| return modes; /* No 802.11b rates */ |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g " |
| "information"); |
| |
| return modes; |
| } |
| |
| |
| static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start, |
| int end) |
| { |
| int c; |
| |
| for (c = 0; c < mode->num_channels; c++) { |
| struct hostapd_channel_data *chan = &mode->channels[c]; |
| if (chan->freq - 10 >= start && chan->freq + 10 <= end) |
| chan->flag |= HOSTAPD_CHAN_HT40; |
| } |
| } |
| |
| |
| static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start, |
| int end) |
| { |
| int c; |
| |
| for (c = 0; c < mode->num_channels; c++) { |
| struct hostapd_channel_data *chan = &mode->channels[c]; |
| if (!(chan->flag & HOSTAPD_CHAN_HT40)) |
| continue; |
| if (chan->freq - 30 >= start && chan->freq - 10 <= end) |
| chan->flag |= HOSTAPD_CHAN_HT40MINUS; |
| if (chan->freq + 10 >= start && chan->freq + 30 <= end) |
| chan->flag |= HOSTAPD_CHAN_HT40PLUS; |
| } |
| } |
| |
| |
| static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp, |
| struct phy_info_arg *results) |
| { |
| u16 m; |
| |
| for (m = 0; m < *results->num_modes; m++) { |
| int c; |
| struct hostapd_hw_modes *mode = &results->modes[m]; |
| |
| for (c = 0; c < mode->num_channels; c++) { |
| struct hostapd_channel_data *chan = &mode->channels[c]; |
| if ((u32) chan->freq - 10 >= start && |
| (u32) chan->freq + 10 <= end) |
| chan->max_tx_power = max_eirp; |
| } |
| } |
| } |
| |
| |
| static void nl80211_reg_rule_ht40(u32 start, u32 end, |
| struct phy_info_arg *results) |
| { |
| u16 m; |
| |
| for (m = 0; m < *results->num_modes; m++) { |
| if (!(results->modes[m].ht_capab & |
| HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) |
| continue; |
| nl80211_set_ht40_mode(&results->modes[m], start, end); |
| } |
| } |
| |
| |
| static void nl80211_reg_rule_sec(struct nlattr *tb[], |
| struct phy_info_arg *results) |
| { |
| u32 start, end, max_bw; |
| u16 m; |
| |
| if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || |
| tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || |
| tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) |
| return; |
| |
| start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; |
| end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; |
| max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; |
| |
| if (max_bw < 20) |
| return; |
| |
| for (m = 0; m < *results->num_modes; m++) { |
| if (!(results->modes[m].ht_capab & |
| HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) |
| continue; |
| nl80211_set_ht40_mode_sec(&results->modes[m], start, end); |
| } |
| } |
| |
| |
| static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start, |
| int end) |
| { |
| int c; |
| |
| for (c = 0; c < mode->num_channels; c++) { |
| struct hostapd_channel_data *chan = &mode->channels[c]; |
| if (chan->freq - 10 >= start && chan->freq + 70 <= end) |
| chan->flag |= HOSTAPD_CHAN_VHT_10_70; |
| |
| if (chan->freq - 30 >= start && chan->freq + 50 <= end) |
| chan->flag |= HOSTAPD_CHAN_VHT_30_50; |
| |
| if (chan->freq - 50 >= start && chan->freq + 30 <= end) |
| chan->flag |= HOSTAPD_CHAN_VHT_50_30; |
| |
| if (chan->freq - 70 >= start && chan->freq + 10 <= end) |
| chan->flag |= HOSTAPD_CHAN_VHT_70_10; |
| } |
| } |
| |
| |
| static void nl80211_reg_rule_vht(struct nlattr *tb[], |
| struct phy_info_arg *results) |
| { |
| u32 start, end, max_bw; |
| u16 m; |
| |
| if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL || |
| tb[NL80211_ATTR_FREQ_RANGE_END] == NULL || |
| tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL) |
| return; |
| |
| start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000; |
| end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000; |
| max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; |
| |
| if (max_bw < 80) |
| return; |
| |
| for (m = 0; m < *results->num_modes; m++) { |
| if (!(results->modes[m].ht_capab & |
| HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) |
| continue; |
| /* TODO: use a real VHT support indication */ |
| if (!results->modes[m].vht_capab) |
| continue; |
| |
| nl80211_set_vht_mode(&results->modes[m], start, end); |
| } |
| } |
| |
| |
| static const char * dfs_domain_name(enum nl80211_dfs_regions region) |
| { |
| switch (region) { |
| case NL80211_DFS_UNSET: |
| return "DFS-UNSET"; |
| case NL80211_DFS_FCC: |
| return "DFS-FCC"; |
| case NL80211_DFS_ETSI: |
| return "DFS-ETSI"; |
| case NL80211_DFS_JP: |
| return "DFS-JP"; |
| default: |
| return "DFS-invalid"; |
| } |
| } |
| |
| |
| static int nl80211_get_reg(struct nl_msg *msg, void *arg) |
| { |
| struct phy_info_arg *results = arg; |
| struct nlattr *tb_msg[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *nl_rule; |
| struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1]; |
| int rem_rule; |
| static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { |
| [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
| [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, |
| [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, |
| [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, |
| [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, |
| [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, |
| }; |
| |
| nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| if (!tb_msg[NL80211_ATTR_REG_ALPHA2] || |
| !tb_msg[NL80211_ATTR_REG_RULES]) { |
| wpa_printf(MSG_DEBUG, "nl80211: No regulatory information " |
| "available"); |
| return NL_SKIP; |
| } |
| |
| if (tb_msg[NL80211_ATTR_DFS_REGION]) { |
| enum nl80211_dfs_regions dfs_domain; |
| dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]); |
| wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)", |
| (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), |
| dfs_domain_name(dfs_domain)); |
| } else { |
| wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s", |
| (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2])); |
| } |
| |
| nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) |
| { |
| u32 start, end, max_eirp = 0, max_bw = 0, flags = 0; |
| nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, |
| nla_data(nl_rule), nla_len(nl_rule), reg_policy); |
| if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL || |
| tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL) |
| continue; |
| start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000; |
| end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000; |
| if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) |
| max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100; |
| if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) |
| max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000; |
| if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS]) |
| flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]); |
| |
| wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s", |
| start, end, max_bw, max_eirp, |
| flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "", |
| flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "", |
| flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "", |
| flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" : |
| "", |
| flags & NL80211_RRF_DFS ? " (DFS)" : "", |
| flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "", |
| flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "", |
| flags & NL80211_RRF_NO_IR ? " (no IR)" : ""); |
| if (max_bw >= 40) |
| nl80211_reg_rule_ht40(start, end, results); |
| if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) |
| nl80211_reg_rule_max_eirp(start, end, max_eirp, |
| results); |
| } |
| |
| nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) |
| { |
| nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, |
| nla_data(nl_rule), nla_len(nl_rule), reg_policy); |
| nl80211_reg_rule_sec(tb_rule, results); |
| } |
| |
| nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) |
| { |
| nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, |
| nla_data(nl_rule), nla_len(nl_rule), reg_policy); |
| nl80211_reg_rule_vht(tb_rule, results); |
| } |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv, |
| struct phy_info_arg *results) |
| { |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG); |
| return send_and_recv_msgs(drv, msg, nl80211_get_reg, results); |
| } |
| |
| |
| static struct hostapd_hw_modes * |
| wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags) |
| { |
| u32 feat; |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| struct phy_info_arg result = { |
| .num_modes = num_modes, |
| .modes = NULL, |
| .last_mode = -1, |
| }; |
| |
| *num_modes = 0; |
| *flags = 0; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return NULL; |
| |
| feat = get_nl80211_protocol_features(drv); |
| if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP) |
| nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY); |
| else |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY); |
| |
| NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP); |
| if (nl80211_set_iface_id(msg, bss) < 0) |
| goto nla_put_failure; |
| |
| if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) { |
| nl80211_set_regulatory_flags(drv, &result); |
| return wpa_driver_nl80211_postprocess_modes(result.modes, |
| num_modes); |
| } |
| msg = NULL; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return NULL; |
| } |
| |
| |
| static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv, |
| const void *data, size_t len, |
| int encrypt, int noack) |
| { |
| __u8 rtap_hdr[] = { |
| 0x00, 0x00, /* radiotap version */ |
| 0x0e, 0x00, /* radiotap length */ |
| 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */ |
| IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */ |
| 0x00, /* padding */ |
| 0x00, 0x00, /* RX and TX flags to indicate that */ |
| 0x00, 0x00, /* this is the injected frame directly */ |
| }; |
| struct iovec iov[2] = { |
| { |
| .iov_base = &rtap_hdr, |
| .iov_len = sizeof(rtap_hdr), |
| }, |
| { |
| .iov_base = (void *) data, |
| .iov_len = len, |
| } |
| }; |
| struct msghdr msg = { |
| .msg_name = NULL, |
| .msg_namelen = 0, |
| .msg_iov = iov, |
| .msg_iovlen = 2, |
| .msg_control = NULL, |
| .msg_controllen = 0, |
| .msg_flags = 0, |
| }; |
| int res; |
| u16 txflags = 0; |
| |
| if (encrypt) |
| rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP; |
| |
| if (drv->monitor_sock < 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available " |
| "for %s", __func__); |
| return -1; |
| } |
| |
| if (noack) |
| txflags |= IEEE80211_RADIOTAP_F_TX_NOACK; |
| WPA_PUT_LE16(&rtap_hdr[12], txflags); |
| |
| res = sendmsg(drv->monitor_sock, &msg, 0); |
| if (res < 0) { |
| wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno)); |
| return -1; |
| } |
| return 0; |
| } |
| |
| |
| static int wpa_driver_nl80211_send_frame(struct i802_bss *bss, |
| const void *data, size_t len, |
| int encrypt, int noack, |
| unsigned int freq, int no_cck, |
| int offchanok, unsigned int wait_time) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| u64 cookie; |
| int res; |
| |
| if (freq == 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u", |
| bss->freq); |
| freq = bss->freq; |
| } |
| |
| if (drv->use_monitor) { |
| wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr", |
| freq, bss->freq); |
| return wpa_driver_nl80211_send_mntr(drv, data, len, |
| encrypt, noack); |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd"); |
| res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len, |
| &cookie, no_cck, noack, offchanok); |
| if (res == 0 && !noack) { |
| const struct ieee80211_mgmt *mgmt; |
| u16 fc; |
| |
| mgmt = (const struct ieee80211_mgmt *) data; |
| fc = le_to_host16(mgmt->frame_control); |
| if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && |
| WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) { |
| wpa_printf(MSG_MSGDUMP, |
| "nl80211: Update send_action_cookie from 0x%llx to 0x%llx", |
| (long long unsigned int) |
| drv->send_action_cookie, |
| (long long unsigned int) cookie); |
| drv->send_action_cookie = cookie; |
| } |
| } |
| |
| return res; |
| } |
| |
| |
| static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data, |
| size_t data_len, int noack, |
| unsigned int freq, int no_cck, |
| int offchanok, |
| unsigned int wait_time) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct ieee80211_mgmt *mgmt; |
| int encrypt = 1; |
| u16 fc; |
| |
| mgmt = (struct ieee80211_mgmt *) data; |
| fc = le_to_host16(mgmt->frame_control); |
| wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d", |
| noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode); |
| |
| if ((is_sta_interface(drv->nlmode) || |
| drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) && |
| WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && |
| WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) { |
| /* |
| * The use of last_mgmt_freq is a bit of a hack, |
| * but it works due to the single-threaded nature |
| * of wpa_supplicant. |
| */ |
| if (freq == 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d", |
| drv->last_mgmt_freq); |
| freq = drv->last_mgmt_freq; |
| } |
| return nl80211_send_frame_cmd(bss, freq, 0, |
| data, data_len, NULL, 1, noack, |
| 1); |
| } |
| |
| if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) { |
| if (freq == 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d", |
| bss->freq); |
| freq = bss->freq; |
| } |
| return nl80211_send_frame_cmd(bss, freq, |
| (int) freq == bss->freq ? 0 : |
| wait_time, |
| data, data_len, |
| &drv->send_action_cookie, |
| no_cck, noack, offchanok); |
| } |
| |
| if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && |
| WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) { |
| /* |
| * Only one of the authentication frame types is encrypted. |
| * In order for static WEP encryption to work properly (i.e., |
| * to not encrypt the frame), we need to tell mac80211 about |
| * the frames that must not be encrypted. |
| */ |
| u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg); |
| u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction); |
| if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3) |
| encrypt = 0; |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame"); |
| return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, |
| noack, freq, no_cck, offchanok, |
| wait_time); |
| } |
| |
| |
| static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble, |
| int slot, int ht_opmode, int ap_isolate, |
| int *basic_rates) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS); |
| |
| if (cts >= 0) |
| NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts); |
| if (preamble >= 0) |
| NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble); |
| if (slot >= 0) |
| NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot); |
| if (ht_opmode >= 0) |
| NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode); |
| if (ap_isolate >= 0) |
| NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate); |
| |
| if (basic_rates) { |
| u8 rates[NL80211_MAX_SUPP_RATES]; |
| u8 rates_len = 0; |
| int i; |
| |
| for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; |
| i++) |
| rates[rates_len++] = basic_rates[i] / 5; |
| |
| NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates); |
| } |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
| |
| return send_and_recv_msgs(drv, msg, NULL, NULL); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int wpa_driver_nl80211_set_acl(void *priv, |
| struct hostapd_acl_params *params) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| struct nlattr *acl; |
| unsigned int i; |
| int ret = 0; |
| |
| if (!(drv->capa.max_acl_mac_addrs)) |
| return -ENOTSUP; |
| |
| if (params->num_mac_acl > drv->capa.max_acl_mac_addrs) |
| return -ENOTSUP; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)", |
| params->acl_policy ? "Accept" : "Deny", params->num_mac_acl); |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ? |
| NL80211_ACL_POLICY_DENY_UNLESS_LISTED : |
| NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED); |
| |
| acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS); |
| if (acl == NULL) |
| goto nla_put_failure; |
| |
| for (i = 0; i < params->num_mac_acl; i++) |
| NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr); |
| |
| nla_nest_end(msg, acl); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)", |
| ret, strerror(-ret)); |
| } |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| |
| return ret; |
| } |
| |
| |
| static int wpa_driver_nl80211_set_ap(void *priv, |
| struct wpa_driver_ap_params *params) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| u8 cmd = NL80211_CMD_NEW_BEACON; |
| int ret; |
| int beacon_set; |
| int ifindex = if_nametoindex(bss->ifname); |
| int num_suites; |
| u32 suites[10], suite; |
| u32 ver; |
| |
| beacon_set = bss->beacon_set; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)", |
| beacon_set); |
| if (beacon_set) |
| cmd = NL80211_CMD_SET_BEACON; |
| |
| nl80211_cmd(drv, msg, 0, cmd); |
| wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head", |
| params->head, params->head_len); |
| NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head); |
| wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail", |
| params->tail, params->tail_len); |
| NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail); |
| wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); |
| wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int); |
| NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int); |
| wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period); |
| NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period); |
| wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid", |
| params->ssid, params->ssid_len); |
| NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, |
| params->ssid); |
| if (params->proberesp && params->proberesp_len) { |
| wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)", |
| params->proberesp, params->proberesp_len); |
| NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len, |
| params->proberesp); |
| } |
| switch (params->hide_ssid) { |
| case NO_SSID_HIDING: |
| wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use"); |
| NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, |
| NL80211_HIDDEN_SSID_NOT_IN_USE); |
| break; |
| case HIDDEN_SSID_ZERO_LEN: |
| wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len"); |
| NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, |
| NL80211_HIDDEN_SSID_ZERO_LEN); |
| break; |
| case HIDDEN_SSID_ZERO_CONTENTS: |
| wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents"); |
| NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID, |
| NL80211_HIDDEN_SSID_ZERO_CONTENTS); |
| break; |
| } |
| wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy); |
| if (params->privacy) |
| NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); |
| wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs); |
| if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) == |
| (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) { |
| /* Leave out the attribute */ |
| } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) |
| NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, |
| NL80211_AUTHTYPE_SHARED_KEY); |
| else |
| NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, |
| NL80211_AUTHTYPE_OPEN_SYSTEM); |
| |
| wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version); |
| ver = 0; |
| if (params->wpa_version & WPA_PROTO_WPA) |
| ver |= NL80211_WPA_VERSION_1; |
| if (params->wpa_version & WPA_PROTO_RSN) |
| ver |= NL80211_WPA_VERSION_2; |
| if (ver) |
| NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); |
| |
| wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x", |
| params->key_mgmt_suites); |
| num_suites = 0; |
| if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X) |
| suites[num_suites++] = WLAN_AKM_SUITE_8021X; |
| if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK) |
| suites[num_suites++] = WLAN_AKM_SUITE_PSK; |
| if (num_suites) { |
| NLA_PUT(msg, NL80211_ATTR_AKM_SUITES, |
| num_suites * sizeof(u32), suites); |
| } |
| |
| if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X && |
| params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) |
| NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT); |
| |
| wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x", |
| params->pairwise_ciphers); |
| num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers, |
| suites, ARRAY_SIZE(suites)); |
| if (num_suites) { |
| NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, |
| num_suites * sizeof(u32), suites); |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x", |
| params->group_cipher); |
| suite = wpa_cipher_to_cipher_suite(params->group_cipher); |
| if (suite) |
| NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite); |
| |
| if (params->beacon_ies) { |
| wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies", |
| params->beacon_ies); |
| NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies), |
| wpabuf_head(params->beacon_ies)); |
| } |
| if (params->proberesp_ies) { |
| wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies", |
| params->proberesp_ies); |
| NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, |
| wpabuf_len(params->proberesp_ies), |
| wpabuf_head(params->proberesp_ies)); |
| } |
| if (params->assocresp_ies) { |
| wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies", |
| params->assocresp_ies); |
| NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP, |
| wpabuf_len(params->assocresp_ies), |
| wpabuf_head(params->assocresp_ies)); |
| } |
| |
| if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) { |
| wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d", |
| params->ap_max_inactivity); |
| NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT, |
| params->ap_max_inactivity); |
| } |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)", |
| ret, strerror(-ret)); |
| } else { |
| bss->beacon_set = 1; |
| nl80211_set_bss(bss, params->cts_protect, params->preamble, |
| params->short_slot_time, params->ht_opmode, |
| params->isolate, params->basic_rates); |
| } |
| return ret; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int nl80211_put_freq_params(struct nl_msg *msg, |
| struct hostapd_freq_params *freq) |
| { |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); |
| if (freq->vht_enabled) { |
| switch (freq->bandwidth) { |
| case 20: |
| NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, |
| NL80211_CHAN_WIDTH_20); |
| break; |
| case 40: |
| NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, |
| NL80211_CHAN_WIDTH_40); |
| break; |
| case 80: |
| if (freq->center_freq2) |
| NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, |
| NL80211_CHAN_WIDTH_80P80); |
| else |
| NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, |
| NL80211_CHAN_WIDTH_80); |
| break; |
| case 160: |
| NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, |
| NL80211_CHAN_WIDTH_160); |
| break; |
| default: |
| return -EINVAL; |
| } |
| NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); |
| if (freq->center_freq2) |
| NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, |
| freq->center_freq2); |
| } else if (freq->ht_enabled) { |
| switch (freq->sec_channel_offset) { |
| case -1: |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
| NL80211_CHAN_HT40MINUS); |
| break; |
| case 1: |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
| NL80211_CHAN_HT40PLUS); |
| break; |
| default: |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
| NL80211_CHAN_HT20); |
| break; |
| } |
| } |
| return 0; |
| |
| nla_put_failure: |
| return -ENOBUFS; |
| } |
| |
| |
| static int wpa_driver_nl80211_set_freq(struct i802_bss *bss, |
| struct hostapd_freq_params *freq) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret; |
| |
| wpa_printf(MSG_DEBUG, |
| "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", |
| freq->freq, freq->ht_enabled, freq->vht_enabled, |
| freq->bandwidth, freq->center_freq1, freq->center_freq2); |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| if (nl80211_put_freq_params(msg, freq) < 0) |
| goto nla_put_failure; |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret == 0) { |
| bss->freq = freq->freq; |
| return 0; |
| } |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): " |
| "%d (%s)", freq->freq, ret, strerror(-ret)); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -1; |
| } |
| |
| |
| static u32 sta_flags_nl80211(int flags) |
| { |
| u32 f = 0; |
| |
| if (flags & WPA_STA_AUTHORIZED) |
| f |= BIT(NL80211_STA_FLAG_AUTHORIZED); |
| if (flags & WPA_STA_WMM) |
| f |= BIT(NL80211_STA_FLAG_WME); |
| if (flags & WPA_STA_SHORT_PREAMBLE) |
| f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); |
| if (flags & WPA_STA_MFP) |
| f |= BIT(NL80211_STA_FLAG_MFP); |
| if (flags & WPA_STA_TDLS_PEER) |
| f |= BIT(NL80211_STA_FLAG_TDLS_PEER); |
| |
| return f; |
| } |
| |
| |
| static int wpa_driver_nl80211_sta_add(void *priv, |
| struct hostapd_sta_add_params *params) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| struct nl80211_sta_flag_update upd; |
| int ret = -ENOBUFS; |
| |
| if ((params->flags & WPA_STA_TDLS_PEER) && |
| !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) |
| return -EOPNOTSUPP; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR, |
| params->set ? "Set" : "Add", MAC2STR(params->addr)); |
| nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION : |
| NL80211_CMD_NEW_STATION); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr); |
| NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len, |
| params->supp_rates); |
| wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates, |
| params->supp_rates_len); |
| if (!params->set) { |
| if (params->aid) { |
| wpa_printf(MSG_DEBUG, " * aid=%u", params->aid); |
| NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid); |
| } else { |
| /* |
| * cfg80211 validates that AID is non-zero, so we have |
| * to make this a non-zero value for the TDLS case where |
| * a dummy STA entry is used for now. |
| */ |
| wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)"); |
| NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1); |
| } |
| wpa_printf(MSG_DEBUG, " * listen_interval=%u", |
| params->listen_interval); |
| NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, |
| params->listen_interval); |
| } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) { |
| wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid); |
| NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid); |
| } |
| if (params->ht_capabilities) { |
| wpa_hexdump(MSG_DEBUG, " * ht_capabilities", |
| (u8 *) params->ht_capabilities, |
| sizeof(*params->ht_capabilities)); |
| NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, |
| sizeof(*params->ht_capabilities), |
| params->ht_capabilities); |
| } |
| |
| if (params->vht_capabilities) { |
| wpa_hexdump(MSG_DEBUG, " * vht_capabilities", |
| (u8 *) params->vht_capabilities, |
| sizeof(*params->vht_capabilities)); |
| NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, |
| sizeof(*params->vht_capabilities), |
| params->vht_capabilities); |
| } |
| |
| if (params->vht_opmode_enabled) { |
| wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode); |
| NLA_PUT_U8(msg, NL80211_ATTR_OPMODE_NOTIF, |
| params->vht_opmode); |
| } |
| |
| wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability); |
| NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability); |
| |
| if (params->ext_capab) { |
| wpa_hexdump(MSG_DEBUG, " * ext_capab", |
| params->ext_capab, params->ext_capab_len); |
| NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY, |
| params->ext_capab_len, params->ext_capab); |
| } |
| |
| if (params->supp_channels) { |
| wpa_hexdump(MSG_DEBUG, " * supported channels", |
| params->supp_channels, params->supp_channels_len); |
| NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS, |
| params->supp_channels_len, params->supp_channels); |
| } |
| |
| if (params->supp_oper_classes) { |
| wpa_hexdump(MSG_DEBUG, " * supported operating classes", |
| params->supp_oper_classes, |
| params->supp_oper_classes_len); |
| NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES, |
| params->supp_oper_classes_len, |
| params->supp_oper_classes); |
| } |
| |
| os_memset(&upd, 0, sizeof(upd)); |
| upd.mask = sta_flags_nl80211(params->flags); |
| upd.set = upd.mask; |
| wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x", |
| upd.set, upd.mask); |
| NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); |
| |
| if (params->flags & WPA_STA_WMM) { |
| struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME); |
| |
| if (!wme) |
| goto nla_put_failure; |
| |
| wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo); |
| NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES, |
| params->qosinfo & WMM_QOSINFO_STA_AC_MASK); |
| NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP, |
| (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) & |
| WMM_QOSINFO_STA_SP_MASK); |
| nla_nest_end(msg, wme); |
| } |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) |
| wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION " |
| "result: %d (%s)", params->set ? "SET" : "NEW", ret, |
| strerror(-ret)); |
| if (ret == -EEXIST) |
| ret = 0; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, |
| if_nametoindex(bss->ifname)); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR |
| " --> %d (%s)", |
| bss->ifname, MAC2STR(addr), ret, strerror(-ret)); |
| if (ret == -ENOENT) |
| return 0; |
| return ret; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, |
| int ifidx) |
| { |
| struct nl_msg *msg; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx); |
| |
| /* stop listening for EAPOL on this interface */ |
| del_ifidx(drv, ifidx); |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| goto nla_put_failure; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx); |
| |
| if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) |
| return; |
| msg = NULL; |
| nla_put_failure: |
| nlmsg_free(msg); |
| wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx); |
| } |
| |
| |
| static const char * nl80211_iftype_str(enum nl80211_iftype mode) |
| { |
| switch (mode) { |
| case NL80211_IFTYPE_ADHOC: |
| return "ADHOC"; |
| case NL80211_IFTYPE_STATION: |
| return "STATION"; |
| case NL80211_IFTYPE_AP: |
| return "AP"; |
| case NL80211_IFTYPE_AP_VLAN: |
| return "AP_VLAN"; |
| case NL80211_IFTYPE_WDS: |
| return "WDS"; |
| case NL80211_IFTYPE_MONITOR: |
| return "MONITOR"; |
| case NL80211_IFTYPE_MESH_POINT: |
| return "MESH_POINT"; |
| case NL80211_IFTYPE_P2P_CLIENT: |
| return "P2P_CLIENT"; |
| case NL80211_IFTYPE_P2P_GO: |
| return "P2P_GO"; |
| case NL80211_IFTYPE_P2P_DEVICE: |
| return "P2P_DEVICE"; |
| default: |
| return "unknown"; |
| } |
| } |
| |
| |
| static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv, |
| const char *ifname, |
| enum nl80211_iftype iftype, |
| const u8 *addr, int wds, |
| int (*handler)(struct nl_msg *, void *), |
| void *arg) |
| { |
| struct nl_msg *msg; |
| int ifidx; |
| int ret = -ENOBUFS; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)", |
| iftype, nl80211_iftype_str(iftype)); |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE); |
| if (nl80211_set_iface_id(msg, drv->first_bss) < 0) |
| goto nla_put_failure; |
| NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype); |
| |
| if (iftype == NL80211_IFTYPE_MONITOR) { |
| struct nlattr *flags; |
| |
| flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS); |
| if (!flags) |
| goto nla_put_failure; |
| |
| NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES); |
| |
| nla_nest_end(msg, flags); |
| } else if (wds) { |
| NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds); |
| } |
| |
| ret = send_and_recv_msgs(drv, msg, handler, arg); |
| msg = NULL; |
| if (ret) { |
| nla_put_failure: |
| nlmsg_free(msg); |
| wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)", |
| ifname, ret, strerror(-ret)); |
| return ret; |
| } |
| |
| if (iftype == NL80211_IFTYPE_P2P_DEVICE) |
| return 0; |
| |
| ifidx = if_nametoindex(ifname); |
| wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d", |
| ifname, ifidx); |
| |
| if (ifidx <= 0) |
| return -1; |
| |
| /* start listening for EAPOL on this interface */ |
| add_ifidx(drv, ifidx); |
| |
| if (addr && iftype != NL80211_IFTYPE_MONITOR && |
| linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) { |
| nl80211_remove_iface(drv, ifidx); |
| return -1; |
| } |
| |
| return ifidx; |
| } |
| |
| |
| static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, |
| const char *ifname, enum nl80211_iftype iftype, |
| const u8 *addr, int wds, |
| int (*handler)(struct nl_msg *, void *), |
| void *arg, int use_existing) |
| { |
| int ret; |
| |
| ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler, |
| arg); |
| |
| /* if error occurred and interface exists already */ |
| if (ret == -ENFILE && if_nametoindex(ifname)) { |
| if (use_existing) { |
| wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s", |
| ifname); |
| return -ENFILE; |
| } |
| wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname); |
| |
| /* Try to remove the interface that was already there. */ |
| nl80211_remove_iface(drv, if_nametoindex(ifname)); |
| |
| /* Try to create the interface again */ |
| ret = nl80211_create_iface_once(drv, ifname, iftype, addr, |
| wds, handler, arg); |
| } |
| |
| if (ret >= 0 && is_p2p_net_interface(iftype)) |
| nl80211_disable_11b_rates(drv, ret, 1); |
| |
| return ret; |
| } |
| |
| |
| static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) |
| { |
| struct ieee80211_hdr *hdr; |
| u16 fc; |
| union wpa_event_data event; |
| |
| hdr = (struct ieee80211_hdr *) buf; |
| fc = le_to_host16(hdr->frame_control); |
| |
| os_memset(&event, 0, sizeof(event)); |
| event.tx_status.type = WLAN_FC_GET_TYPE(fc); |
| event.tx_status.stype = WLAN_FC_GET_STYPE(fc); |
| event.tx_status.dst = hdr->addr1; |
| event.tx_status.data = buf; |
| event.tx_status.data_len = len; |
| event.tx_status.ack = ok; |
| wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event); |
| } |
| |
| |
| static void from_unknown_sta(struct wpa_driver_nl80211_data *drv, |
| u8 *buf, size_t len) |
| { |
| struct ieee80211_hdr *hdr = (void *)buf; |
| u16 fc; |
| union wpa_event_data event; |
| |
| if (len < sizeof(*hdr)) |
| return; |
| |
| fc = le_to_host16(hdr->frame_control); |
| |
| os_memset(&event, 0, sizeof(event)); |
| event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len); |
| event.rx_from_unknown.addr = hdr->addr2; |
| event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) == |
| (WLAN_FC_FROMDS | WLAN_FC_TODS); |
| wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event); |
| } |
| |
| |
| static void handle_frame(struct wpa_driver_nl80211_data *drv, |
| u8 *buf, size_t len, int datarate, int ssi_signal) |
| { |
| struct ieee80211_hdr *hdr; |
| u16 fc; |
| union wpa_event_data event; |
| |
| hdr = (struct ieee80211_hdr *) buf; |
| fc = le_to_host16(hdr->frame_control); |
| |
| switch (WLAN_FC_GET_TYPE(fc)) { |
| case WLAN_FC_TYPE_MGMT: |
| os_memset(&event, 0, sizeof(event)); |
| event.rx_mgmt.frame = buf; |
| event.rx_mgmt.frame_len = len; |
| event.rx_mgmt.datarate = datarate; |
| event.rx_mgmt.ssi_signal = ssi_signal; |
| wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event); |
| break; |
| case WLAN_FC_TYPE_CTRL: |
| /* can only get here with PS-Poll frames */ |
| wpa_printf(MSG_DEBUG, "CTRL"); |
| from_unknown_sta(drv, buf, len); |
| break; |
| case WLAN_FC_TYPE_DATA: |
| from_unknown_sta(drv, buf, len); |
| break; |
| } |
| } |
| |
| |
| static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) |
| { |
| struct wpa_driver_nl80211_data *drv = eloop_ctx; |
| int len; |
| unsigned char buf[3000]; |
| struct ieee80211_radiotap_iterator iter; |
| int ret; |
| int datarate = 0, ssi_signal = 0; |
| int injected = 0, failed = 0, rxflags = 0; |
| |
| len = recv(sock, buf, sizeof(buf), 0); |
| if (len < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s", |
| strerror(errno)); |
| return; |
| } |
| |
| if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) { |
| wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame"); |
| return; |
| } |
| |
| while (1) { |
| ret = ieee80211_radiotap_iterator_next(&iter); |
| if (ret == -ENOENT) |
| break; |
| if (ret) { |
| wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)", |
| ret); |
| return; |
| } |
| switch (iter.this_arg_index) { |
| case IEEE80211_RADIOTAP_FLAGS: |
| if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS) |
| len -= 4; |
| break; |
| case IEEE80211_RADIOTAP_RX_FLAGS: |
| rxflags = 1; |
| break; |
| case IEEE80211_RADIOTAP_TX_FLAGS: |
| injected = 1; |
| failed = le_to_host16((*(uint16_t *) iter.this_arg)) & |
| IEEE80211_RADIOTAP_F_TX_FAIL; |
| break; |
| case IEEE80211_RADIOTAP_DATA_RETRIES: |
| break; |
| case IEEE80211_RADIOTAP_CHANNEL: |
| /* TODO: convert from freq/flags to channel number */ |
| break; |
| case IEEE80211_RADIOTAP_RATE: |
| datarate = *iter.this_arg * 5; |
| break; |
| case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: |
| ssi_signal = (s8) *iter.this_arg; |
| break; |
| } |
| } |
| |
| if (rxflags && injected) |
| return; |
| |
| if (!injected) |
| handle_frame(drv, buf + iter.max_length, |
| len - iter.max_length, datarate, ssi_signal); |
| else |
| handle_tx_callback(drv->ctx, buf + iter.max_length, |
| len - iter.max_length, !failed); |
| } |
| |
| |
| /* |
| * we post-process the filter code later and rewrite |
| * this to the offset to the last instruction |
| */ |
| #define PASS 0xFF |
| #define FAIL 0xFE |
| |
| static struct sock_filter msock_filter_insns[] = { |
| /* |
| * do a little-endian load of the radiotap length field |
| */ |
| /* load lower byte into A */ |
| BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2), |
| /* put it into X (== index register) */ |
| BPF_STMT(BPF_MISC| BPF_TAX, 0), |
| /* load upper byte into A */ |
| BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3), |
| /* left-shift it by 8 */ |
| BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8), |
| /* or with X */ |
| BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0), |
| /* put result into X */ |
| BPF_STMT(BPF_MISC| BPF_TAX, 0), |
| |
| /* |
| * Allow management frames through, this also gives us those |
| * management frames that we sent ourselves with status |
| */ |
| /* load the lower byte of the IEEE 802.11 frame control field */ |
| BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), |
| /* mask off frame type and version */ |
| BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF), |
| /* accept frame if it's both 0, fall through otherwise */ |
| BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0), |
| |
| /* |
| * TODO: add a bit to radiotap RX flags that indicates |
| * that the sending station is not associated, then |
| * add a filter here that filters on our DA and that flag |
| * to allow us to deauth frames to that bad station. |
| * |
| * For now allow all To DS data frames through. |
| */ |
| /* load the IEEE 802.11 frame control field */ |
| BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0), |
| /* mask off frame type, version and DS status */ |
| BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03), |
| /* accept frame if version 0, type 2 and To DS, fall through otherwise |
| */ |
| BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0), |
| |
| #if 0 |
| /* |
| * drop non-data frames |
| */ |
| /* load the lower byte of the frame control field */ |
| BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), |
| /* mask off QoS bit */ |
| BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c), |
| /* drop non-data frames */ |
| BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL), |
| #endif |
| /* load the upper byte of the frame control field */ |
| BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1), |
| /* mask off toDS/fromDS */ |
| BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03), |
| /* accept WDS frames */ |
| BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0), |
| |
| /* |
| * add header length to index |
| */ |
| /* load the lower byte of the frame control field */ |
| BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0), |
| /* mask off QoS bit */ |
| BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80), |
| /* right shift it by 6 to give 0 or 2 */ |
| BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6), |
| /* add data frame header length */ |
| BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24), |
| /* add index, was start of 802.11 header */ |
| BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0), |
| /* move to index, now start of LL header */ |
| BPF_STMT(BPF_MISC | BPF_TAX, 0), |
| |
| /* |
| * Accept empty data frames, we use those for |
| * polling activity. |
| */ |
| BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0), |
| BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0), |
| |
| /* |
| * Accept EAPOL frames |
| */ |
| BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0), |
| BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL), |
| BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4), |
| BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL), |
| |
| /* keep these last two statements or change the code below */ |
| /* return 0 == "DROP" */ |
| BPF_STMT(BPF_RET | BPF_K, 0), |
| /* return ~0 == "keep all" */ |
| BPF_STMT(BPF_RET | BPF_K, ~0), |
| }; |
| |
| static struct sock_fprog msock_filter = { |
| .len = ARRAY_SIZE(msock_filter_insns), |
| .filter = msock_filter_insns, |
| }; |
| |
| |
| static int add_monitor_filter(int s) |
| { |
| int idx; |
| |
| /* rewrite all PASS/FAIL jump offsets */ |
| for (idx = 0; idx < msock_filter.len; idx++) { |
| struct sock_filter *insn = &msock_filter_insns[idx]; |
| |
| if (BPF_CLASS(insn->code) == BPF_JMP) { |
| if (insn->code == (BPF_JMP|BPF_JA)) { |
| if (insn->k == PASS) |
| insn->k = msock_filter.len - idx - 2; |
| else if (insn->k == FAIL) |
| insn->k = msock_filter.len - idx - 3; |
| } |
| |
| if (insn->jt == PASS) |
| insn->jt = msock_filter.len - idx - 2; |
| else if (insn->jt == FAIL) |
| insn->jt = msock_filter.len - idx - 3; |
| |
| if (insn->jf == PASS) |
| insn->jf = msock_filter.len - idx - 2; |
| else if (insn->jf == FAIL) |
| insn->jf = msock_filter.len - idx - 3; |
| } |
| } |
| |
| if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER, |
| &msock_filter, sizeof(msock_filter))) { |
| wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s", |
| strerror(errno)); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| |
| static void nl80211_remove_monitor_interface( |
| struct wpa_driver_nl80211_data *drv) |
| { |
| if (drv->monitor_refcount > 0) |
| drv->monitor_refcount--; |
| wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d", |
| drv->monitor_refcount); |
| if (drv->monitor_refcount > 0) |
| return; |
| |
| if (drv->monitor_ifidx >= 0) { |
| nl80211_remove_iface(drv, drv->monitor_ifidx); |
| drv->monitor_ifidx = -1; |
| } |
| if (drv->monitor_sock >= 0) { |
| eloop_unregister_read_sock(drv->monitor_sock); |
| close(drv->monitor_sock); |
| drv->monitor_sock = -1; |
| } |
| } |
| |
| |
| static int |
| nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv) |
| { |
| char buf[IFNAMSIZ]; |
| struct sockaddr_ll ll; |
| int optval; |
| socklen_t optlen; |
| |
| if (drv->monitor_ifidx >= 0) { |
| drv->monitor_refcount++; |
| wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d", |
| drv->monitor_refcount); |
| return 0; |
| } |
| |
| if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) { |
| /* |
| * P2P interface name is of the format p2p-%s-%d. For monitor |
| * interface name corresponding to P2P GO, replace "p2p-" with |
| * "mon-" to retain the same interface name length and to |
| * indicate that it is a monitor interface. |
| */ |
| snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4); |
| } else { |
| /* Non-P2P interface with AP functionality. */ |
| snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname); |
| } |
| |
| buf[IFNAMSIZ - 1] = '\0'; |
| |
| drv->monitor_ifidx = |
| nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL, |
| 0, NULL, NULL, 0); |
| |
| if (drv->monitor_ifidx == -EOPNOTSUPP) { |
| /* |
| * This is backward compatibility for a few versions of |
| * the kernel only that didn't advertise the right |
| * attributes for the only driver that then supported |
| * AP mode w/o monitor -- ath6kl. |
| */ |
| wpa_printf(MSG_DEBUG, "nl80211: Driver does not support " |
| "monitor interface type - try to run without it"); |
| drv->device_ap_sme = 1; |
| } |
| |
| if (drv->monitor_ifidx < 0) |
| return -1; |
| |
| if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1)) |
| goto error; |
| |
| memset(&ll, 0, sizeof(ll)); |
| ll.sll_family = AF_PACKET; |
| ll.sll_ifindex = drv->monitor_ifidx; |
| drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); |
| if (drv->monitor_sock < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s", |
| strerror(errno)); |
| goto error; |
| } |
| |
| if (add_monitor_filter(drv->monitor_sock)) { |
| wpa_printf(MSG_INFO, "Failed to set socket filter for monitor " |
| "interface; do filtering in user space"); |
| /* This works, but will cost in performance. */ |
| } |
| |
| if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s", |
| strerror(errno)); |
| goto error; |
| } |
| |
| optlen = sizeof(optval); |
| optval = 20; |
| if (setsockopt |
| (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s", |
| strerror(errno)); |
| goto error; |
| } |
| |
| if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read, |
| drv, NULL)) { |
| wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket"); |
| goto error; |
| } |
| |
| drv->monitor_refcount++; |
| return 0; |
| error: |
| nl80211_remove_monitor_interface(drv); |
| return -1; |
| } |
| |
| |
| static int nl80211_setup_ap(struct i802_bss *bss) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d", |
| bss->ifname, drv->device_ap_sme, drv->use_monitor); |
| |
| /* |
| * Disable Probe Request reporting unless we need it in this way for |
| * devices that include the AP SME, in the other case (unless using |
| * monitor iface) we'll get it through the nl_mgmt socket instead. |
| */ |
| if (!drv->device_ap_sme) |
| wpa_driver_nl80211_probe_req_report(bss, 0); |
| |
| if (!drv->device_ap_sme && !drv->use_monitor) |
| if (nl80211_mgmt_subscribe_ap(bss)) |
| return -1; |
| |
| if (drv->device_ap_sme && !drv->use_monitor) |
| if (nl80211_mgmt_subscribe_ap_dev_sme(bss)) |
| return -1; |
| |
| if (!drv->device_ap_sme && drv->use_monitor && |
| nl80211_create_monitor_interface(drv) && |
| !drv->device_ap_sme) |
| return -1; |
| |
| if (drv->device_ap_sme && |
| wpa_driver_nl80211_probe_req_report(bss, 1) < 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to enable " |
| "Probe Request frame reporting in AP mode"); |
| /* Try to survive without this */ |
| } |
| |
| return 0; |
| } |
| |
| |
| static void nl80211_teardown_ap(struct i802_bss *bss) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d", |
| bss->ifname, drv->device_ap_sme, drv->use_monitor); |
| if (drv->device_ap_sme) { |
| wpa_driver_nl80211_probe_req_report(bss, 0); |
| if (!drv->use_monitor) |
| nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)"); |
| } else if (drv->use_monitor) |
| nl80211_remove_monitor_interface(drv); |
| else |
| nl80211_mgmt_unsubscribe(bss, "AP teardown"); |
| |
| bss->beacon_set = 0; |
| } |
| |
| |
| static int nl80211_send_eapol_data(struct i802_bss *bss, |
| const u8 *addr, const u8 *data, |
| size_t data_len) |
| { |
| struct sockaddr_ll ll; |
| int ret; |
| |
| if (bss->drv->eapol_tx_sock < 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL"); |
| return -1; |
| } |
| |
| os_memset(&ll, 0, sizeof(ll)); |
| ll.sll_family = AF_PACKET; |
| ll.sll_ifindex = bss->ifindex; |
| ll.sll_protocol = htons(ETH_P_PAE); |
| ll.sll_halen = ETH_ALEN; |
| os_memcpy(ll.sll_addr, addr, ETH_ALEN); |
| ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0, |
| (struct sockaddr *) &ll, sizeof(ll)); |
| if (ret < 0) |
| wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s", |
| strerror(errno)); |
| |
| return ret; |
| } |
| |
| |
| static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; |
| |
| static int wpa_driver_nl80211_hapd_send_eapol( |
| void *priv, const u8 *addr, const u8 *data, |
| size_t data_len, int encrypt, const u8 *own_addr, u32 flags) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct ieee80211_hdr *hdr; |
| size_t len; |
| u8 *pos; |
| int res; |
| int qos = flags & WPA_STA_WMM; |
| |
| if (drv->device_ap_sme || !drv->use_monitor) |
| return nl80211_send_eapol_data(bss, addr, data, data_len); |
| |
| len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 + |
| data_len; |
| hdr = os_zalloc(len); |
| if (hdr == NULL) { |
| wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)", |
| (unsigned long) len); |
| return -1; |
| } |
| |
| hdr->frame_control = |
| IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA); |
| hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS); |
| if (encrypt) |
| hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); |
| if (qos) { |
| hdr->frame_control |= |
| host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4); |
| } |
| |
| memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN); |
| memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); |
| memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); |
| pos = (u8 *) (hdr + 1); |
| |
| if (qos) { |
| /* Set highest priority in QoS header */ |
| pos[0] = 7; |
| pos[1] = 0; |
| pos += 2; |
| } |
| |
| memcpy(pos, rfc1042_header, sizeof(rfc1042_header)); |
| pos += sizeof(rfc1042_header); |
| WPA_PUT_BE16(pos, ETH_P_PAE); |
| pos += 2; |
| memcpy(pos, data, data_len); |
| |
| res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0, |
| 0, 0, 0, 0); |
| if (res < 0) { |
| wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - " |
| "failed: %d (%s)", |
| (unsigned long) len, errno, strerror(errno)); |
| } |
| os_free(hdr); |
| |
| return res; |
| } |
| |
| |
| static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr, |
| int total_flags, |
| int flags_or, int flags_and) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| struct nlattr *flags; |
| struct nl80211_sta_flag_update upd; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, |
| if_nametoindex(bss->ifname)); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
| |
| /* |
| * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This |
| * can be removed eventually. |
| */ |
| flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS); |
| if (!flags) |
| goto nla_put_failure; |
| if (total_flags & WPA_STA_AUTHORIZED) |
| NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED); |
| |
| if (total_flags & WPA_STA_WMM) |
| NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME); |
| |
| if (total_flags & WPA_STA_SHORT_PREAMBLE) |
| NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE); |
| |
| if (total_flags & WPA_STA_MFP) |
| NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP); |
| |
| if (total_flags & WPA_STA_TDLS_PEER) |
| NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER); |
| |
| nla_nest_end(msg, flags); |
| |
| os_memset(&upd, 0, sizeof(upd)); |
| upd.mask = sta_flags_nl80211(flags_or | ~flags_and); |
| upd.set = sta_flags_nl80211(flags_or); |
| NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); |
| |
| return send_and_recv_msgs(drv, msg, NULL, NULL); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv, |
| struct wpa_driver_associate_params *params) |
| { |
| enum nl80211_iftype nlmode, old_mode; |
| struct hostapd_freq_params freq = { |
| .freq = params->freq, |
| }; |
| |
| if (params->p2p) { |
| wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P " |
| "group (GO)"); |
| nlmode = NL80211_IFTYPE_P2P_GO; |
| } else |
| nlmode = NL80211_IFTYPE_AP; |
| |
| old_mode = drv->nlmode; |
| if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) { |
| nl80211_remove_monitor_interface(drv); |
| return -1; |
| } |
| |
| if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) { |
| if (old_mode != nlmode) |
| wpa_driver_nl80211_set_mode(drv->first_bss, old_mode); |
| nl80211_remove_monitor_interface(drv); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv) |
| { |
| struct nl_msg *msg; |
| int ret = -1; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d " |
| "(%s)", ret, strerror(-ret)); |
| goto nla_put_failure; |
| } |
| |
| ret = 0; |
| wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully"); |
| |
| nla_put_failure: |
| if (wpa_driver_nl80211_set_mode(drv->first_bss, |
| NL80211_IFTYPE_STATION)) { |
| wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " |
| "station mode"); |
| } |
| |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv, |
| struct wpa_driver_associate_params *params) |
| { |
| struct nl_msg *msg; |
| int ret = -1; |
| int count = 0; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex); |
| |
| if (wpa_driver_nl80211_set_mode(drv->first_bss, |
| NL80211_IFTYPE_ADHOC)) { |
| wpa_printf(MSG_INFO, "nl80211: Failed to set interface into " |
| "IBSS mode"); |
| return -1; |
| } |
| |
| retry: |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| |
| if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid)) |
| goto nla_put_failure; |
| |
| wpa_hexdump_ascii(MSG_DEBUG, " * SSID", |
| params->ssid, params->ssid_len); |
| NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, |
| params->ssid); |
| os_memcpy(drv->ssid, params->ssid, params->ssid_len); |
| drv->ssid_len = params->ssid_len; |
| |
| wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); |
| |
| ret = nl80211_set_conn_keys(params, msg); |
| if (ret) |
| goto nla_put_failure; |
| |
| if (params->bssid && params->fixed_bssid) { |
| wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR, |
| MAC2STR(params->bssid)); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); |
| } |
| |
| if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || |
| params->key_mgmt_suite == WPA_KEY_MGMT_PSK || |
| params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 || |
| params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) { |
| wpa_printf(MSG_DEBUG, " * control port"); |
| NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); |
| } |
| |
| if (params->wpa_ie) { |
| wpa_hexdump(MSG_DEBUG, |
| " * Extra IEs for Beacon/Probe Response frames", |
| params->wpa_ie, params->wpa_ie_len); |
| NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, |
| params->wpa_ie); |
| } |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)", |
| ret, strerror(-ret)); |
| count++; |
| if (ret == -EALREADY && count == 1) { |
| wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after " |
| "forced leave"); |
| nl80211_leave_ibss(drv); |
| nlmsg_free(msg); |
| goto retry; |
| } |
| |
| goto nla_put_failure; |
| } |
| ret = 0; |
| wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully"); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv, |
| struct wpa_driver_associate_params *params, |
| struct nl_msg *msg) |
| { |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| |
| if (params->bssid) { |
| wpa_printf(MSG_DEBUG, " * bssid=" MACSTR, |
| MAC2STR(params->bssid)); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid); |
| } |
| |
| if (params->bssid_hint) { |
| wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR, |
| MAC2STR(params->bssid_hint)); |
| NLA_PUT(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN, |
| params->bssid_hint); |
| } |
| |
| if (params->freq) { |
| wpa_printf(MSG_DEBUG, " * freq=%d", params->freq); |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq); |
| drv->assoc_freq = params->freq; |
| } else |
| drv->assoc_freq = 0; |
| |
| if (params->freq_hint) { |
| wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint); |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ_HINT, |
| params->freq_hint); |
| } |
| |
| if (params->bg_scan_period >= 0) { |
| wpa_printf(MSG_DEBUG, " * bg scan period=%d", |
| params->bg_scan_period); |
| NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD, |
| params->bg_scan_period); |
| } |
| |
| if (params->ssid) { |
| wpa_hexdump_ascii(MSG_DEBUG, " * SSID", |
| params->ssid, params->ssid_len); |
| NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len, |
| params->ssid); |
| if (params->ssid_len > sizeof(drv->ssid)) |
| goto nla_put_failure; |
| os_memcpy(drv->ssid, params->ssid, params->ssid_len); |
| drv->ssid_len = params->ssid_len; |
| } |
| |
| wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len); |
| if (params->wpa_ie) |
| NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len, |
| params->wpa_ie); |
| |
| if (params->wpa_proto) { |
| enum nl80211_wpa_versions ver = 0; |
| |
| if (params->wpa_proto & WPA_PROTO_WPA) |
| ver |= NL80211_WPA_VERSION_1; |
| if (params->wpa_proto & WPA_PROTO_RSN) |
| ver |= NL80211_WPA_VERSION_2; |
| |
| wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver); |
| NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver); |
| } |
| |
| if (params->pairwise_suite != WPA_CIPHER_NONE) { |
| u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite); |
| wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher); |
| NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher); |
| } |
| |
| if (params->group_suite == WPA_CIPHER_GTK_NOT_USED && |
| !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) { |
| /* |
| * This is likely to work even though many drivers do not |
| * advertise support for operations without GTK. |
| */ |
| wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement"); |
| } else if (params->group_suite != WPA_CIPHER_NONE) { |
| u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite); |
| wpa_printf(MSG_DEBUG, " * group=0x%x", cipher); |
| NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher); |
| } |
| |
| if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X || |
| params->key_mgmt_suite == WPA_KEY_MGMT_PSK || |
| params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X || |
| params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK || |
| params->key_mgmt_suite == WPA_KEY_MGMT_CCKM) { |
| int mgmt = WLAN_AKM_SUITE_PSK; |
| |
| switch (params->key_mgmt_suite) { |
| case WPA_KEY_MGMT_CCKM: |
| mgmt = WLAN_AKM_SUITE_CCKM; |
| break; |
| case WPA_KEY_MGMT_IEEE8021X: |
| mgmt = WLAN_AKM_SUITE_8021X; |
| break; |
| case WPA_KEY_MGMT_FT_IEEE8021X: |
| mgmt = WLAN_AKM_SUITE_FT_8021X; |
| break; |
| case WPA_KEY_MGMT_FT_PSK: |
| mgmt = WLAN_AKM_SUITE_FT_PSK; |
| break; |
| case WPA_KEY_MGMT_PSK: |
| default: |
| mgmt = WLAN_AKM_SUITE_PSK; |
| break; |
| } |
| NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt); |
| } |
| |
| NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT); |
| |
| if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED) |
| NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED); |
| |
| if (params->disable_ht) |
| NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT); |
| |
| if (params->htcaps && params->htcaps_mask) { |
| int sz = sizeof(struct ieee80211_ht_capabilities); |
| NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps); |
| NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz, |
| params->htcaps_mask); |
| } |
| |
| #ifdef CONFIG_VHT_OVERRIDES |
| if (params->disable_vht) { |
| wpa_printf(MSG_DEBUG, " * VHT disabled"); |
| NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT); |
| } |
| |
| if (params->vhtcaps && params->vhtcaps_mask) { |
| int sz = sizeof(struct ieee80211_vht_capabilities); |
| NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps); |
| NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz, |
| params->vhtcaps_mask); |
| } |
| #endif /* CONFIG_VHT_OVERRIDES */ |
| |
| if (params->p2p) |
| wpa_printf(MSG_DEBUG, " * P2P group"); |
| |
| return 0; |
| nla_put_failure: |
| return -1; |
| } |
| |
| |
| static int wpa_driver_nl80211_try_connect( |
| struct wpa_driver_nl80211_data *drv, |
| struct wpa_driver_associate_params *params) |
| { |
| struct nl_msg *msg; |
| enum nl80211_auth_type type; |
| int ret; |
| int algs; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex); |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT); |
| |
| ret = nl80211_connect_common(drv, params, msg); |
| if (ret) |
| goto nla_put_failure; |
| |
| algs = 0; |
| if (params->auth_alg & WPA_AUTH_ALG_OPEN) |
| algs++; |
| if (params->auth_alg & WPA_AUTH_ALG_SHARED) |
| algs++; |
| if (params->auth_alg & WPA_AUTH_ALG_LEAP) |
| algs++; |
| if (algs > 1) { |
| wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic " |
| "selection"); |
| goto skip_auth_type; |
| } |
| |
| if (params->auth_alg & WPA_AUTH_ALG_OPEN) |
| type = NL80211_AUTHTYPE_OPEN_SYSTEM; |
| else if (params->auth_alg & WPA_AUTH_ALG_SHARED) |
| type = NL80211_AUTHTYPE_SHARED_KEY; |
| else if (params->auth_alg & WPA_AUTH_ALG_LEAP) |
| type = NL80211_AUTHTYPE_NETWORK_EAP; |
| else if (params->auth_alg & WPA_AUTH_ALG_FT) |
| type = NL80211_AUTHTYPE_FT; |
| else |
| goto nla_put_failure; |
| |
| wpa_printf(MSG_DEBUG, " * Auth Type %d", type); |
| NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type); |
| |
| skip_auth_type: |
| ret = nl80211_set_conn_keys(params, msg); |
| if (ret) |
| goto nla_put_failure; |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d " |
| "(%s)", ret, strerror(-ret)); |
| goto nla_put_failure; |
| } |
| ret = 0; |
| wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully"); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| |
| } |
| |
| |
| static int wpa_driver_nl80211_connect( |
| struct wpa_driver_nl80211_data *drv, |
| struct wpa_driver_associate_params *params) |
| { |
| int ret = wpa_driver_nl80211_try_connect(drv, params); |
| if (ret == -EALREADY) { |
| /* |
| * cfg80211 does not currently accept new connections if |
| * we are already connected. As a workaround, force |
| * disconnection and try again. |
| */ |
| wpa_printf(MSG_DEBUG, "nl80211: Explicitly " |
| "disconnecting before reassociation " |
| "attempt"); |
| if (wpa_driver_nl80211_disconnect( |
| drv, WLAN_REASON_PREV_AUTH_NOT_VALID)) |
| return -1; |
| ret = wpa_driver_nl80211_try_connect(drv, params); |
| } |
| return ret; |
| } |
| |
| |
| static int wpa_driver_nl80211_associate( |
| void *priv, struct wpa_driver_associate_params *params) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ret; |
| struct nl_msg *msg; |
| |
| if (params->mode == IEEE80211_MODE_AP) |
| return wpa_driver_nl80211_ap(drv, params); |
| |
| if (params->mode == IEEE80211_MODE_IBSS) |
| return wpa_driver_nl80211_ibss(drv, params); |
| |
| if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) { |
| enum nl80211_iftype nlmode = params->p2p ? |
| NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION; |
| |
| if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0) |
| return -1; |
| return wpa_driver_nl80211_connect(drv, params); |
| } |
| |
| nl80211_mark_disconnected(drv); |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)", |
| drv->ifindex); |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE); |
| |
| ret = nl80211_connect_common(drv, params, msg); |
| if (ret) |
| goto nla_put_failure; |
| |
| if (params->prev_bssid) { |
| wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR, |
| MAC2STR(params->prev_bssid)); |
| NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN, |
| params->prev_bssid); |
| } |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_dbg(drv->ctx, MSG_DEBUG, |
| "nl80211: MLME command failed (assoc): ret=%d (%s)", |
| ret, strerror(-ret)); |
| nl80211_dump_scan(drv); |
| goto nla_put_failure; |
| } |
| ret = 0; |
| wpa_printf(MSG_DEBUG, "nl80211: Association request send " |
| "successfully"); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, |
| int ifindex, enum nl80211_iftype mode) |
| { |
| struct nl_msg *msg; |
| int ret = -ENOBUFS; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)", |
| ifindex, mode, nl80211_iftype_str(mode)); |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE); |
| if (nl80211_set_iface_id(msg, drv->first_bss) < 0) |
| goto nla_put_failure; |
| NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (!ret) |
| return 0; |
| nla_put_failure: |
| nlmsg_free(msg); |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:" |
| " %d (%s)", ifindex, mode, ret, strerror(-ret)); |
| return ret; |
| } |
| |
| |
| static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, |
| enum nl80211_iftype nlmode) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ret = -1; |
| int i; |
| int was_ap = is_ap_interface(drv->nlmode); |
| int res; |
| |
| res = nl80211_set_mode(drv, drv->ifindex, nlmode); |
| if (res && nlmode == nl80211_get_ifmode(bss)) |
| res = 0; |
| |
| if (res == 0) { |
| drv->nlmode = nlmode; |
| ret = 0; |
| goto done; |
| } |
| |
| if (res == -ENODEV) |
| return -1; |
| |
| if (nlmode == drv->nlmode) { |
| wpa_printf(MSG_DEBUG, "nl80211: Interface already in " |
| "requested mode - ignore error"); |
| ret = 0; |
| goto done; /* Already in the requested mode */ |
| } |
| |
| /* mac80211 doesn't allow mode changes while the device is up, so |
| * take the device down, try to set the mode again, and bring the |
| * device back up. |
| */ |
| wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting " |
| "interface down"); |
| for (i = 0; i < 10; i++) { |
| res = i802_set_iface_flags(bss, 0); |
| if (res == -EACCES || res == -ENODEV) |
| break; |
| if (res == 0) { |
| /* Try to set the mode again while the interface is |
| * down */ |
| ret = nl80211_set_mode(drv, drv->ifindex, nlmode); |
| if (ret == -EACCES) |
| break; |
| res = i802_set_iface_flags(bss, 1); |
| if (res && !ret) |
| ret = -1; |
| else if (ret != -EBUSY) |
| break; |
| } else |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to set " |
| "interface down"); |
| os_sleep(0, 100000); |
| } |
| |
| if (!ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while " |
| "interface is down"); |
| drv->nlmode = nlmode; |
| drv->ignore_if_down_event = 1; |
| } |
| |
| done: |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d " |
| "from %d failed", nlmode, drv->nlmode); |
| return ret; |
| } |
| |
| if (is_p2p_net_interface(nlmode)) |
| nl80211_disable_11b_rates(drv, drv->ifindex, 1); |
| else if (drv->disabled_11b_rates) |
| nl80211_disable_11b_rates(drv, drv->ifindex, 0); |
| |
| if (is_ap_interface(nlmode)) { |
| nl80211_mgmt_unsubscribe(bss, "start AP"); |
| /* Setup additional AP mode functionality if needed */ |
| if (nl80211_setup_ap(bss)) |
| return -1; |
| } else if (was_ap) { |
| /* Remove additional AP mode functionality */ |
| nl80211_teardown_ap(bss); |
| } else { |
| nl80211_mgmt_unsubscribe(bss, "mode change"); |
| } |
| |
| if (!bss->in_deinit && !is_ap_interface(nlmode) && |
| nl80211_mgmt_subscribe_non_ap(bss) < 0) |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action " |
| "frame processing - ignore for now"); |
| |
| return 0; |
| } |
| |
| |
| static int wpa_driver_nl80211_get_capa(void *priv, |
| struct wpa_driver_capa *capa) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| if (!drv->has_capability) |
| return -1; |
| os_memcpy(capa, &drv->capa, sizeof(*capa)); |
| if (drv->extended_capa && drv->extended_capa_mask) { |
| capa->extended_capa = drv->extended_capa; |
| capa->extended_capa_mask = drv->extended_capa_mask; |
| capa->extended_capa_len = drv->extended_capa_len; |
| } |
| |
| if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && |
| !drv->allow_p2p_device) { |
| wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)"); |
| capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE; |
| } |
| |
| return 0; |
| } |
| |
| |
| static int wpa_driver_nl80211_set_operstate(void *priv, int state) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)", |
| bss->ifname, drv->operstate, state, |
| state ? "UP" : "DORMANT"); |
| drv->operstate = state; |
| return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1, |
| state ? IF_OPER_UP : IF_OPER_DORMANT); |
| } |
| |
| |
| static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| struct nl80211_sta_flag_update upd; |
| int ret = -ENOBUFS; |
| |
| if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) { |
| wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated"); |
| return 0; |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for " |
| MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid)); |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, |
| if_nametoindex(bss->ifname)); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid); |
| |
| os_memset(&upd, 0, sizeof(upd)); |
| upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED); |
| if (authorized) |
| upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED); |
| NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (!ret) |
| return 0; |
| nla_put_failure: |
| nlmsg_free(msg); |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)", |
| ret, strerror(-ret)); |
| return ret; |
| } |
| |
| |
| /* Set kernel driver on given frequency (MHz) */ |
| static int i802_set_freq(void *priv, struct hostapd_freq_params *freq) |
| { |
| struct i802_bss *bss = priv; |
| return wpa_driver_nl80211_set_freq(bss, freq); |
| } |
| |
| |
| static inline int min_int(int a, int b) |
| { |
| if (a < b) |
| return a; |
| return b; |
| } |
| |
| |
| static int get_key_handler(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| /* |
| * TODO: validate the key index and mac address! |
| * Otherwise, there's a race condition as soon as |
| * the kernel starts sending key notifications. |
| */ |
| |
| if (tb[NL80211_ATTR_KEY_SEQ]) |
| memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]), |
| min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6)); |
| return NL_SKIP; |
| } |
| |
| |
| static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr, |
| int idx, u8 *seq) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY); |
| |
| if (addr) |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
| NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface)); |
| |
| memset(seq, 0, 6); |
| |
| return send_and_recv_msgs(drv, msg, get_key_handler, seq); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int i802_set_rts(void *priv, int rts) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret = -ENOBUFS; |
| u32 val; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| if (rts >= 2347) |
| val = (u32) -1; |
| else |
| val = rts; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (!ret) |
| return 0; |
| nla_put_failure: |
| nlmsg_free(msg); |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: " |
| "%d (%s)", rts, ret, strerror(-ret)); |
| return ret; |
| } |
| |
| |
| static int i802_set_frag(void *priv, int frag) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret = -ENOBUFS; |
| u32 val; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| if (frag >= 2346) |
| val = (u32) -1; |
| else |
| val = frag; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (!ret) |
| return 0; |
| nla_put_failure: |
| nlmsg_free(msg); |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold " |
| "%d: %d (%s)", frag, ret, strerror(-ret)); |
| return ret; |
| } |
| |
| |
| static int i802_flush(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int res; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)", |
| bss->ifname); |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION); |
| |
| /* |
| * XXX: FIX! this needs to flush all VLANs too |
| */ |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, |
| if_nametoindex(bss->ifname)); |
| |
| res = send_and_recv_msgs(drv, msg, NULL, NULL); |
| if (res) { |
| wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d " |
| "(%s)", res, strerror(-res)); |
| } |
| return res; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int get_sta_handler(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct hostap_sta_driver_data *data = arg; |
| struct nlattr *stats[NL80211_STA_INFO_MAX + 1]; |
| static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { |
| [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 }, |
| [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 }, |
| [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 }, |
| [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 }, |
| [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 }, |
| [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 }, |
| }; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| /* |
| * TODO: validate the interface and mac address! |
| * Otherwise, there's a race condition as soon as |
| * the kernel starts sending station notifications. |
| */ |
| |
| if (!tb[NL80211_ATTR_STA_INFO]) { |
| wpa_printf(MSG_DEBUG, "sta stats missing!"); |
| return NL_SKIP; |
| } |
| if (nla_parse_nested(stats, NL80211_STA_INFO_MAX, |
| tb[NL80211_ATTR_STA_INFO], |
| stats_policy)) { |
| wpa_printf(MSG_DEBUG, "failed to parse nested attributes!"); |
| return NL_SKIP; |
| } |
| |
| if (stats[NL80211_STA_INFO_INACTIVE_TIME]) |
| data->inactive_msec = |
| nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]); |
| if (stats[NL80211_STA_INFO_RX_BYTES]) |
| data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]); |
| if (stats[NL80211_STA_INFO_TX_BYTES]) |
| data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]); |
| if (stats[NL80211_STA_INFO_RX_PACKETS]) |
| data->rx_packets = |
| nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]); |
| if (stats[NL80211_STA_INFO_TX_PACKETS]) |
| data->tx_packets = |
| nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]); |
| if (stats[NL80211_STA_INFO_TX_FAILED]) |
| data->tx_retry_failed = |
| nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]); |
| |
| return NL_SKIP; |
| } |
| |
| static int i802_read_sta_data(struct i802_bss *bss, |
| struct hostap_sta_driver_data *data, |
| const u8 *addr) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| |
| os_memset(data, 0, sizeof(*data)); |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION); |
| |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
| |
| return send_and_recv_msgs(drv, msg, get_sta_handler, data); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int i802_set_tx_queue_params(void *priv, int queue, int aifs, |
| int cw_min, int cw_max, int burst_time) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| struct nlattr *txq, *params; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
| |
| txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS); |
| if (!txq) |
| goto nla_put_failure; |
| |
| /* We are only sending parameters for a single TXQ at a time */ |
| params = nla_nest_start(msg, 1); |
| if (!params) |
| goto nla_put_failure; |
| |
| switch (queue) { |
| case 0: |
| NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO); |
| break; |
| case 1: |
| NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI); |
| break; |
| case 2: |
| NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE); |
| break; |
| case 3: |
| NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK); |
| break; |
| } |
| /* Burst time is configured in units of 0.1 msec and TXOP parameter in |
| * 32 usec, so need to convert the value here. */ |
| NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32); |
| NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min); |
| NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max); |
| NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs); |
| |
| nla_nest_end(msg, params); |
| |
| nla_nest_end(msg, txq); |
| |
| if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0) |
| return 0; |
| msg = NULL; |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -1; |
| } |
| |
| |
| static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr, |
| const char *ifname, int vlan_id) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret = -ENOBUFS; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR |
| ", ifname=%s[%d], vlan_id=%d)", |
| bss->ifname, if_nametoindex(bss->ifname), |
| MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id); |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, |
| if_nametoindex(bss->ifname)); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
| NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN, |
| if_nametoindex(ifname)); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr=" |
| MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)", |
| MAC2STR(addr), ifname, vlan_id, ret, |
| strerror(-ret)); |
| } |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int i802_get_inact_sec(void *priv, const u8 *addr) |
| { |
| struct hostap_sta_driver_data data; |
| int ret; |
| |
| data.inactive_msec = (unsigned long) -1; |
| ret = i802_read_sta_data(priv, &data, addr); |
| if (ret || data.inactive_msec == (unsigned long) -1) |
| return -1; |
| return data.inactive_msec / 1000; |
| } |
| |
| |
| static int i802_sta_clear_stats(void *priv, const u8 *addr) |
| { |
| #if 0 |
| /* TODO */ |
| #endif |
| return 0; |
| } |
| |
| |
| static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, |
| int reason) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct ieee80211_mgmt mgmt; |
| |
| if (drv->device_ap_sme) |
| return wpa_driver_nl80211_sta_remove(bss, addr); |
| |
| memset(&mgmt, 0, sizeof(mgmt)); |
| mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, |
| WLAN_FC_STYPE_DEAUTH); |
| memcpy(mgmt.da, addr, ETH_ALEN); |
| memcpy(mgmt.sa, own_addr, ETH_ALEN); |
| memcpy(mgmt.bssid, own_addr, ETH_ALEN); |
| mgmt.u.deauth.reason_code = host_to_le16(reason); |
| return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, |
| IEEE80211_HDRLEN + |
| sizeof(mgmt.u.deauth), 0, 0, 0, 0, |
| 0); |
| } |
| |
| |
| static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, |
| int reason) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct ieee80211_mgmt mgmt; |
| |
| if (drv->device_ap_sme) |
| return wpa_driver_nl80211_sta_remove(bss, addr); |
| |
| memset(&mgmt, 0, sizeof(mgmt)); |
| mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, |
| WLAN_FC_STYPE_DISASSOC); |
| memcpy(mgmt.da, addr, ETH_ALEN); |
| memcpy(mgmt.sa, own_addr, ETH_ALEN); |
| memcpy(mgmt.bssid, own_addr, ETH_ALEN); |
| mgmt.u.disassoc.reason_code = host_to_le16(reason); |
| return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt, |
| IEEE80211_HDRLEN + |
| sizeof(mgmt.u.disassoc), 0, 0, 0, 0, |
| 0); |
| } |
| |
| |
| static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) |
| { |
| int i; |
| int *old; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d", |
| ifidx); |
| for (i = 0; i < drv->num_if_indices; i++) { |
| if (drv->if_indices[i] == 0) { |
| drv->if_indices[i] = ifidx; |
| return; |
| } |
| } |
| |
| if (drv->if_indices != drv->default_if_indices) |
| old = drv->if_indices; |
| else |
| old = NULL; |
| |
| drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1, |
| sizeof(int)); |
| if (!drv->if_indices) { |
| if (!old) |
| drv->if_indices = drv->default_if_indices; |
| else |
| drv->if_indices = old; |
| wpa_printf(MSG_ERROR, "Failed to reallocate memory for " |
| "interfaces"); |
| wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx); |
| return; |
| } else if (!old) |
| os_memcpy(drv->if_indices, drv->default_if_indices, |
| sizeof(drv->default_if_indices)); |
| drv->if_indices[drv->num_if_indices] = ifidx; |
| drv->num_if_indices++; |
| } |
| |
| |
| static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) |
| { |
| int i; |
| |
| for (i = 0; i < drv->num_if_indices; i++) { |
| if (drv->if_indices[i] == ifidx) { |
| drv->if_indices[i] = 0; |
| break; |
| } |
| } |
| } |
| |
| |
| static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx) |
| { |
| int i; |
| |
| for (i = 0; i < drv->num_if_indices; i++) |
| if (drv->if_indices[i] == ifidx) |
| return 1; |
| |
| return 0; |
| } |
| |
| |
| static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val, |
| const char *bridge_ifname, char *ifname_wds) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| char name[IFNAMSIZ + 1]; |
| |
| os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid); |
| if (ifname_wds) |
| os_strlcpy(ifname_wds, name, IFNAMSIZ + 1); |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR |
| " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name); |
| if (val) { |
| if (!if_nametoindex(name)) { |
| if (nl80211_create_iface(drv, name, |
| NL80211_IFTYPE_AP_VLAN, |
| bss->addr, 1, NULL, NULL, 0) < |
| 0) |
| return -1; |
| if (bridge_ifname && |
| linux_br_add_if(drv->global->ioctl_sock, |
| bridge_ifname, name) < 0) |
| return -1; |
| } |
| if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA " |
| "interface %s up", name); |
| } |
| return i802_set_sta_vlan(priv, addr, name, 0); |
| } else { |
| if (bridge_ifname) |
| linux_br_del_if(drv->global->ioctl_sock, bridge_ifname, |
| name); |
| |
| i802_set_sta_vlan(priv, addr, bss->ifname, 0); |
| return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN, |
| name); |
| } |
| } |
| |
| |
| static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) |
| { |
| struct wpa_driver_nl80211_data *drv = eloop_ctx; |
| struct sockaddr_ll lladdr; |
| unsigned char buf[3000]; |
| int len; |
| socklen_t fromlen = sizeof(lladdr); |
| |
| len = recvfrom(sock, buf, sizeof(buf), 0, |
| (struct sockaddr *)&lladdr, &fromlen); |
| if (len < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s", |
| strerror(errno)); |
| return; |
| } |
| |
| if (have_ifidx(drv, lladdr.sll_ifindex)) |
| drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len); |
| } |
| |
| |
| static int i802_check_bridge(struct wpa_driver_nl80211_data *drv, |
| struct i802_bss *bss, |
| const char *brname, const char *ifname) |
| { |
| int ifindex; |
| char in_br[IFNAMSIZ]; |
| |
| os_strlcpy(bss->brname, brname, IFNAMSIZ); |
| ifindex = if_nametoindex(brname); |
| if (ifindex == 0) { |
| /* |
| * Bridge was configured, but the bridge device does |
| * not exist. Try to add it now. |
| */ |
| if (linux_br_add(drv->global->ioctl_sock, brname) < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to add the " |
| "bridge interface %s: %s", |
| brname, strerror(errno)); |
| return -1; |
| } |
| bss->added_bridge = 1; |
| add_ifidx(drv, if_nametoindex(brname)); |
| } |
| |
| if (linux_br_get(in_br, ifname) == 0) { |
| if (os_strcmp(in_br, brname) == 0) |
| return 0; /* already in the bridge */ |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from " |
| "bridge %s", ifname, in_br); |
| if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) < |
| 0) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to " |
| "remove interface %s from bridge " |
| "%s: %s", |
| ifname, brname, strerror(errno)); |
| return -1; |
| } |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s", |
| ifname, brname); |
| if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s " |
| "into bridge %s: %s", |
| ifname, brname, strerror(errno)); |
| return -1; |
| } |
| bss->added_if_into_bridge = 1; |
| |
| return 0; |
| } |
| |
| |
| static void *i802_init(struct hostapd_data *hapd, |
| struct wpa_init_params *params) |
| { |
| struct wpa_driver_nl80211_data *drv; |
| struct i802_bss *bss; |
| size_t i; |
| char brname[IFNAMSIZ]; |
| int ifindex, br_ifindex; |
| int br_added = 0; |
| |
| bss = wpa_driver_nl80211_drv_init(hapd, params->ifname, |
| params->global_priv, 1, |
| params->bssid); |
| if (bss == NULL) |
| return NULL; |
| |
| drv = bss->drv; |
| |
| if (linux_br_get(brname, params->ifname) == 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", |
| params->ifname, brname); |
| br_ifindex = if_nametoindex(brname); |
| } else { |
| brname[0] = '\0'; |
| br_ifindex = 0; |
| } |
| |
| for (i = 0; i < params->num_bridge; i++) { |
| if (params->bridge[i]) { |
| ifindex = if_nametoindex(params->bridge[i]); |
| if (ifindex) |
| add_ifidx(drv, ifindex); |
| if (ifindex == br_ifindex) |
| br_added = 1; |
| } |
| } |
| if (!br_added && br_ifindex && |
| (params->num_bridge == 0 || !params->bridge[0])) |
| add_ifidx(drv, br_ifindex); |
| |
| /* start listening for EAPOL on the default AP interface */ |
| add_ifidx(drv, drv->ifindex); |
| |
| if (params->num_bridge && params->bridge[0] && |
| i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) |
| goto failed; |
| |
| drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); |
| if (drv->eapol_sock < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", |
| strerror(errno)); |
| goto failed; |
| } |
| |
| if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL)) |
| { |
| wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol"); |
| goto failed; |
| } |
| |
| if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, |
| params->own_addr)) |
| goto failed; |
| |
| memcpy(bss->addr, params->own_addr, ETH_ALEN); |
| |
| return bss; |
| |
| failed: |
| wpa_driver_nl80211_deinit(bss); |
| return NULL; |
| } |
| |
| |
| static void i802_deinit(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| wpa_driver_nl80211_deinit(bss); |
| } |
| |
| |
| static enum nl80211_iftype wpa_driver_nl80211_if_type( |
| enum wpa_driver_if_type type) |
| { |
| switch (type) { |
| case WPA_IF_STATION: |
| return NL80211_IFTYPE_STATION; |
| case WPA_IF_P2P_CLIENT: |
| case WPA_IF_P2P_GROUP: |
| return NL80211_IFTYPE_P2P_CLIENT; |
| case WPA_IF_AP_VLAN: |
| return NL80211_IFTYPE_AP_VLAN; |
| case WPA_IF_AP_BSS: |
| return NL80211_IFTYPE_AP; |
| case WPA_IF_P2P_GO: |
| return NL80211_IFTYPE_P2P_GO; |
| case WPA_IF_P2P_DEVICE: |
| return NL80211_IFTYPE_P2P_DEVICE; |
| } |
| return -1; |
| } |
| |
| |
| #ifdef CONFIG_P2P |
| |
| static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr) |
| { |
| struct wpa_driver_nl80211_data *drv; |
| dl_list_for_each(drv, &global->interfaces, |
| struct wpa_driver_nl80211_data, list) { |
| if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0) |
| return 1; |
| } |
| return 0; |
| } |
| |
| |
| static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv, |
| u8 *new_addr) |
| { |
| unsigned int idx; |
| |
| if (!drv->global) |
| return -1; |
| |
| os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN); |
| for (idx = 0; idx < 64; idx++) { |
| new_addr[0] = drv->first_bss->addr[0] | 0x02; |
| new_addr[0] ^= idx << 2; |
| if (!nl80211_addr_in_use(drv->global, new_addr)) |
| break; |
| } |
| if (idx == 64) |
| return -1; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address " |
| MACSTR, MAC2STR(new_addr)); |
| |
| return 0; |
| } |
| |
| #endif /* CONFIG_P2P */ |
| |
| |
| struct wdev_info { |
| u64 wdev_id; |
| int wdev_id_set; |
| u8 macaddr[ETH_ALEN]; |
| }; |
| |
| static int nl80211_wdev_handler(struct nl_msg *msg, void *arg) |
| { |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct wdev_info *wi = arg; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| if (tb[NL80211_ATTR_WDEV]) { |
| wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]); |
| wi->wdev_id_set = 1; |
| } |
| |
| if (tb[NL80211_ATTR_MAC]) |
| os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]), |
| ETH_ALEN); |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type, |
| const char *ifname, const u8 *addr, |
| void *bss_ctx, void **drv_priv, |
| char *force_ifname, u8 *if_addr, |
| const char *bridge, int use_existing) |
| { |
| enum nl80211_iftype nlmode; |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ifidx; |
| int added = 1; |
| |
| if (addr) |
| os_memcpy(if_addr, addr, ETH_ALEN); |
| nlmode = wpa_driver_nl80211_if_type(type); |
| if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { |
| struct wdev_info p2pdev_info; |
| |
| os_memset(&p2pdev_info, 0, sizeof(p2pdev_info)); |
| ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, |
| 0, nl80211_wdev_handler, |
| &p2pdev_info, use_existing); |
| if (!p2pdev_info.wdev_id_set || ifidx != 0) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s", |
| ifname); |
| return -1; |
| } |
| |
| drv->global->if_add_wdevid = p2pdev_info.wdev_id; |
| drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set; |
| if (!is_zero_ether_addr(p2pdev_info.macaddr)) |
| os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN); |
| wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created", |
| ifname, |
| (long long unsigned int) p2pdev_info.wdev_id); |
| } else { |
| ifidx = nl80211_create_iface(drv, ifname, nlmode, addr, |
| 0, NULL, NULL, use_existing); |
| if (use_existing && ifidx == -ENFILE) { |
| added = 0; |
| ifidx = if_nametoindex(ifname); |
| } else if (ifidx < 0) { |
| return -1; |
| } |
| } |
| |
| if (!addr) { |
| if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) |
| os_memcpy(if_addr, bss->addr, ETH_ALEN); |
| else if (linux_get_ifhwaddr(drv->global->ioctl_sock, |
| bss->ifname, if_addr) < 0) { |
| if (added) |
| nl80211_remove_iface(drv, ifidx); |
| return -1; |
| } |
| } |
| |
| #ifdef CONFIG_P2P |
| if (!addr && |
| (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP || |
| type == WPA_IF_P2P_GO)) { |
| /* Enforce unique P2P Interface Address */ |
| u8 new_addr[ETH_ALEN]; |
| |
| if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname, |
| new_addr) < 0) { |
| nl80211_remove_iface(drv, ifidx); |
| return -1; |
| } |
| if (nl80211_addr_in_use(drv->global, new_addr)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Allocate new address " |
| "for P2P group interface"); |
| if (nl80211_p2p_interface_addr(drv, new_addr) < 0) { |
| nl80211_remove_iface(drv, ifidx); |
| return -1; |
| } |
| if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, |
| new_addr) < 0) { |
| nl80211_remove_iface(drv, ifidx); |
| return -1; |
| } |
| } |
| os_memcpy(if_addr, new_addr, ETH_ALEN); |
| } |
| #endif /* CONFIG_P2P */ |
| |
| if (type == WPA_IF_AP_BSS) { |
| struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss)); |
| if (new_bss == NULL) { |
| if (added) |
| nl80211_remove_iface(drv, ifidx); |
| return -1; |
| } |
| |
| if (bridge && |
| i802_check_bridge(drv, new_bss, bridge, ifname) < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to add the new " |
| "interface %s to a bridge %s", |
| ifname, bridge); |
| if (added) |
| nl80211_remove_iface(drv, ifidx); |
| os_free(new_bss); |
| return -1; |
| } |
| |
| if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1)) |
| { |
| nl80211_remove_iface(drv, ifidx); |
| os_free(new_bss); |
| return -1; |
| } |
| os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ); |
| os_memcpy(new_bss->addr, if_addr, ETH_ALEN); |
| new_bss->ifindex = ifidx; |
| new_bss->drv = drv; |
| new_bss->next = drv->first_bss->next; |
| new_bss->freq = drv->first_bss->freq; |
| new_bss->ctx = bss_ctx; |
| new_bss->added_if = added; |
| drv->first_bss->next = new_bss; |
| if (drv_priv) |
| *drv_priv = new_bss; |
| nl80211_init_bss(new_bss); |
| |
| /* Subscribe management frames for this WPA_IF_AP_BSS */ |
| if (nl80211_setup_ap(new_bss)) |
| return -1; |
| } |
| |
| if (drv->global) |
| drv->global->if_add_ifindex = ifidx; |
| |
| return 0; |
| } |
| |
| |
| static int wpa_driver_nl80211_if_remove(struct i802_bss *bss, |
| enum wpa_driver_if_type type, |
| const char *ifname) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ifindex = if_nametoindex(ifname); |
| |
| wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d", |
| __func__, type, ifname, ifindex, bss->added_if); |
| if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex)) |
| nl80211_remove_iface(drv, ifindex); |
| |
| if (type != WPA_IF_AP_BSS) |
| return 0; |
| |
| if (bss->added_if_into_bridge) { |
| if (linux_br_del_if(drv->global->ioctl_sock, bss->brname, |
| bss->ifname) < 0) |
| wpa_printf(MSG_INFO, "nl80211: Failed to remove " |
| "interface %s from bridge %s: %s", |
| bss->ifname, bss->brname, strerror(errno)); |
| } |
| if (bss->added_bridge) { |
| if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0) |
| wpa_printf(MSG_INFO, "nl80211: Failed to remove " |
| "bridge %s: %s", |
| bss->brname, strerror(errno)); |
| } |
| |
| if (bss != drv->first_bss) { |
| struct i802_bss *tbss; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it"); |
| for (tbss = drv->first_bss; tbss; tbss = tbss->next) { |
| if (tbss->next == bss) { |
| tbss->next = bss->next; |
| /* Unsubscribe management frames */ |
| nl80211_teardown_ap(bss); |
| nl80211_destroy_bss(bss); |
| os_free(bss); |
| bss = NULL; |
| break; |
| } |
| } |
| if (bss) |
| wpa_printf(MSG_INFO, "nl80211: %s - could not find " |
| "BSS %p in the list", __func__, bss); |
| } else { |
| wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context"); |
| nl80211_teardown_ap(bss); |
| if (!bss->added_if && !drv->first_bss->next) |
| wpa_driver_nl80211_del_beacon(drv); |
| nl80211_destroy_bss(bss); |
| if (!bss->added_if) |
| i802_set_iface_flags(bss, 0); |
| if (drv->first_bss->next) { |
| drv->first_bss = drv->first_bss->next; |
| drv->ctx = drv->first_bss->ctx; |
| os_free(bss); |
| } else { |
| wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to"); |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| static int cookie_handler(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| u64 *cookie = arg; |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| if (tb[NL80211_ATTR_COOKIE]) |
| *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]); |
| return NL_SKIP; |
| } |
| |
| |
| static int nl80211_send_frame_cmd(struct i802_bss *bss, |
| unsigned int freq, unsigned int wait, |
| const u8 *buf, size_t buf_len, |
| u64 *cookie_out, int no_cck, int no_ack, |
| int offchanok) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| u64 cookie; |
| int ret = -1; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d " |
| "no_ack=%d offchanok=%d", |
| freq, wait, no_cck, no_ack, offchanok); |
| wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len); |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME); |
| |
| if (nl80211_set_iface_id(msg, bss) < 0) |
| goto nla_put_failure; |
| if (freq) |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); |
| if (wait) |
| NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait); |
| if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX)) |
| NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); |
| if (no_cck) |
| NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE); |
| if (no_ack) |
| NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK); |
| |
| NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf); |
| |
| cookie = 0; |
| ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d " |
| "(%s) (freq=%u wait=%u)", ret, strerror(-ret), |
| freq, wait); |
| goto nla_put_failure; |
| } |
| wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; " |
| "cookie 0x%llx", no_ack ? " (no ACK)" : "", |
| (long long unsigned int) cookie); |
| |
| if (cookie_out) |
| *cookie_out = no_ack ? (u64) -1 : cookie; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int wpa_driver_nl80211_send_action(struct i802_bss *bss, |
| unsigned int freq, |
| unsigned int wait_time, |
| const u8 *dst, const u8 *src, |
| const u8 *bssid, |
| const u8 *data, size_t data_len, |
| int no_cck) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ret = -1; |
| u8 *buf; |
| struct ieee80211_hdr *hdr; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, " |
| "freq=%u MHz wait=%d ms no_cck=%d)", |
| drv->ifindex, freq, wait_time, no_cck); |
| |
| buf = os_zalloc(24 + data_len); |
| if (buf == NULL) |
| return ret; |
| os_memcpy(buf + 24, data, data_len); |
| hdr = (struct ieee80211_hdr *) buf; |
| hdr->frame_control = |
| IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION); |
| os_memcpy(hdr->addr1, dst, ETH_ALEN); |
| os_memcpy(hdr->addr2, src, ETH_ALEN); |
| os_memcpy(hdr->addr3, bssid, ETH_ALEN); |
| |
| if (is_ap_interface(drv->nlmode) && |
| (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) || |
| (int) freq == bss->freq || drv->device_ap_sme || |
| !drv->use_monitor)) |
| ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len, |
| 0, freq, no_cck, 1, |
| wait_time); |
| else |
| ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf, |
| 24 + data_len, |
| &drv->send_action_cookie, |
| no_cck, 0, 1); |
| |
| os_free(buf); |
| return ret; |
| } |
| |
| |
| static void wpa_driver_nl80211_send_action_cancel_wait(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx", |
| (long long unsigned int) drv->send_action_cookie); |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL); |
| |
| if (nl80211_set_iface_id(msg, bss) < 0) |
| goto nla_put_failure; |
| NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) |
| wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d " |
| "(%s)", ret, strerror(-ret)); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| |
| static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq, |
| unsigned int duration) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret; |
| u64 cookie; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL); |
| |
| if (nl80211_set_iface_id(msg, bss) < 0) |
| goto nla_put_failure; |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); |
| NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); |
| |
| cookie = 0; |
| ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie); |
| msg = NULL; |
| if (ret == 0) { |
| wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie " |
| "0x%llx for freq=%u MHz duration=%u", |
| (long long unsigned int) cookie, freq, duration); |
| drv->remain_on_chan_cookie = cookie; |
| drv->pending_remain_on_chan = 1; |
| return 0; |
| } |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel " |
| "(freq=%d duration=%u): %d (%s)", |
| freq, duration, ret, strerror(-ret)); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -1; |
| } |
| |
| |
| static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret; |
| |
| if (!drv->pending_remain_on_chan) { |
| wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel " |
| "to cancel"); |
| return -1; |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie " |
| "0x%llx", |
| (long long unsigned int) drv->remain_on_chan_cookie); |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL); |
| |
| if (nl80211_set_iface_id(msg, bss) < 0) |
| goto nla_put_failure; |
| |
| NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret == 0) |
| return 0; |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: " |
| "%d (%s)", ret, strerror(-ret)); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -1; |
| } |
| |
| |
| static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| |
| if (!report) { |
| if (bss->nl_preq && drv->device_ap_sme && |
| is_ap_interface(drv->nlmode)) { |
| /* |
| * Do not disable Probe Request reporting that was |
| * enabled in nl80211_setup_ap(). |
| */ |
| wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of " |
| "Probe Request reporting nl_preq=%p while " |
| "in AP mode", bss->nl_preq); |
| } else if (bss->nl_preq) { |
| wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request " |
| "reporting nl_preq=%p", bss->nl_preq); |
| nl80211_destroy_eloop_handle(&bss->nl_preq); |
| } |
| return 0; |
| } |
| |
| if (bss->nl_preq) { |
| wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting " |
| "already on! nl_preq=%p", bss->nl_preq); |
| return 0; |
| } |
| |
| bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq"); |
| if (bss->nl_preq == NULL) |
| return -1; |
| wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request " |
| "reporting nl_preq=%p", bss->nl_preq); |
| |
| if (nl80211_register_frame(bss, bss->nl_preq, |
| (WLAN_FC_TYPE_MGMT << 2) | |
| (WLAN_FC_STYPE_PROBE_REQ << 4), |
| NULL, 0) < 0) |
| goto out_err; |
| |
| nl80211_register_eloop_read(&bss->nl_preq, |
| wpa_driver_nl80211_event_receive, |
| bss->nl_cb); |
| |
| return 0; |
| |
| out_err: |
| nl_destroy_handles(&bss->nl_preq); |
| return -1; |
| } |
| |
| |
| static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv, |
| int ifindex, int disabled) |
| { |
| struct nl_msg *msg; |
| struct nlattr *bands, *band; |
| int ret; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex); |
| |
| bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES); |
| if (!bands) |
| goto nla_put_failure; |
| |
| /* |
| * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything |
| * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS |
| * rates. All 5 GHz rates are left enabled. |
| */ |
| band = nla_nest_start(msg, NL80211_BAND_2GHZ); |
| if (!band) |
| goto nla_put_failure; |
| if (disabled) { |
| NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8, |
| "\x0c\x12\x18\x24\x30\x48\x60\x6c"); |
| } |
| nla_nest_end(msg, band); |
| |
| nla_nest_end(msg, bands); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d " |
| "(%s)", ret, strerror(-ret)); |
| } else |
| drv->disabled_11b_rates = disabled; |
| |
| return ret; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -1; |
| } |
| |
| |
| static int wpa_driver_nl80211_deinit_ap(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| if (!is_ap_interface(drv->nlmode)) |
| return -1; |
| wpa_driver_nl80211_del_beacon(drv); |
| |
| /* |
| * If the P2P GO interface was dynamically added, then it is |
| * possible that the interface change to station is not possible. |
| */ |
| if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic) |
| return 0; |
| |
| return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); |
| } |
| |
| |
| static int wpa_driver_nl80211_stop_ap(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| if (!is_ap_interface(drv->nlmode)) |
| return -1; |
| wpa_driver_nl80211_del_beacon(drv); |
| bss->beacon_set = 0; |
| return 0; |
| } |
| |
| |
| static int wpa_driver_nl80211_deinit_p2p_cli(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT) |
| return -1; |
| |
| /* |
| * If the P2P Client interface was dynamically added, then it is |
| * possible that the interface change to station is not possible. |
| */ |
| if (bss->if_dynamic) |
| return 0; |
| |
| return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION); |
| } |
| |
| |
| static void wpa_driver_nl80211_resume(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| |
| if (i802_set_iface_flags(bss, 1)) |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event"); |
| } |
| |
| |
| static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap, |
| const u8 *ies, size_t ies_len) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int ret; |
| u8 *data, *pos; |
| size_t data_len; |
| const u8 *own_addr = bss->addr; |
| |
| if (action != 1) { |
| wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action " |
| "action %d", action); |
| return -1; |
| } |
| |
| /* |
| * Action frame payload: |
| * Category[1] = 6 (Fast BSS Transition) |
| * Action[1] = 1 (Fast BSS Transition Request) |
| * STA Address |
| * Target AP Address |
| * FT IEs |
| */ |
| |
| data_len = 2 + 2 * ETH_ALEN + ies_len; |
| data = os_malloc(data_len); |
| if (data == NULL) |
| return -1; |
| pos = data; |
| *pos++ = 0x06; /* FT Action category */ |
| *pos++ = action; |
| os_memcpy(pos, own_addr, ETH_ALEN); |
| pos += ETH_ALEN; |
| os_memcpy(pos, target_ap, ETH_ALEN); |
| pos += ETH_ALEN; |
| os_memcpy(pos, ies, ies_len); |
| |
| ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0, |
| drv->bssid, own_addr, drv->bssid, |
| data, data_len, 0); |
| os_free(data); |
| |
| return ret; |
| } |
| |
| |
| static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| struct nlattr *cqm; |
| int ret = -1; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d " |
| "hysteresis=%d", threshold, hysteresis); |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); |
| |
| cqm = nla_nest_start(msg, NL80211_ATTR_CQM); |
| if (cqm == NULL) |
| goto nla_put_failure; |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold); |
| NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis); |
| nla_nest_end(msg, cqm); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| msg = NULL; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return ret; |
| } |
| |
| |
| static int get_channel_width(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct wpa_signal_info *sig_change = arg; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| sig_change->center_frq1 = -1; |
| sig_change->center_frq2 = -1; |
| sig_change->chanwidth = CHAN_WIDTH_UNKNOWN; |
| |
| if (tb[NL80211_ATTR_CHANNEL_WIDTH]) { |
| sig_change->chanwidth = convert2width( |
| nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH])); |
| if (tb[NL80211_ATTR_CENTER_FREQ1]) |
| sig_change->center_frq1 = |
| nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]); |
| if (tb[NL80211_ATTR_CENTER_FREQ2]) |
| sig_change->center_frq2 = |
| nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]); |
| } |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv, |
| struct wpa_signal_info *sig) |
| { |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| |
| return send_and_recv_msgs(drv, msg, get_channel_width, sig); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int res; |
| |
| os_memset(si, 0, sizeof(*si)); |
| res = nl80211_get_link_signal(drv, si); |
| if (res != 0) |
| return res; |
| |
| res = nl80211_get_channel_width(drv, si); |
| if (res != 0) |
| return res; |
| |
| return nl80211_get_link_noise(drv, si); |
| } |
| |
| |
| static int wpa_driver_nl80211_shared_freq(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct wpa_driver_nl80211_data *driver; |
| int freq = 0; |
| |
| /* |
| * If the same PHY is in connected state with some other interface, |
| * then retrieve the assoc freq. |
| */ |
| wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s", |
| drv->phyname); |
| |
| dl_list_for_each(driver, &drv->global->interfaces, |
| struct wpa_driver_nl80211_data, list) { |
| if (drv == driver || |
| os_strcmp(drv->phyname, driver->phyname) != 0 || |
| !driver->associated) |
| continue; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s " |
| MACSTR, |
| driver->phyname, driver->first_bss->ifname, |
| MAC2STR(driver->first_bss->addr)); |
| if (is_ap_interface(driver->nlmode)) |
| freq = driver->first_bss->freq; |
| else |
| freq = nl80211_get_assoc_freq(driver); |
| wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d", |
| drv->phyname, freq); |
| } |
| |
| if (!freq) |
| wpa_printf(MSG_DEBUG, "nl80211: No shared interface for " |
| "PHY (%s) in associated state", drv->phyname); |
| |
| return freq; |
| } |
| |
| |
| static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len, |
| int encrypt) |
| { |
| struct i802_bss *bss = priv; |
| return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0, |
| 0, 0, 0, 0); |
| } |
| |
| |
| static int nl80211_set_param(void *priv, const char *param) |
| { |
| wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param); |
| if (param == NULL) |
| return 0; |
| |
| #ifdef CONFIG_P2P |
| if (os_strstr(param, "use_p2p_group_interface=1")) { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group " |
| "interface"); |
| drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT; |
| drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P; |
| } |
| |
| if (os_strstr(param, "p2p_device=1")) { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| drv->allow_p2p_device = 1; |
| } |
| #endif /* CONFIG_P2P */ |
| |
| if (os_strstr(param, "use_monitor=1")) { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| drv->use_monitor = 1; |
| } |
| |
| if (os_strstr(param, "force_connect_cmd=1")) { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME; |
| } |
| |
| return 0; |
| } |
| |
| |
| static void * nl80211_global_init(void) |
| { |
| struct nl80211_global *global; |
| struct netlink_config *cfg; |
| |
| global = os_zalloc(sizeof(*global)); |
| if (global == NULL) |
| return NULL; |
| global->ioctl_sock = -1; |
| dl_list_init(&global->interfaces); |
| global->if_add_ifindex = -1; |
| |
| cfg = os_zalloc(sizeof(*cfg)); |
| if (cfg == NULL) |
| goto err; |
| |
| cfg->ctx = global; |
| cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink; |
| cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink; |
| global->netlink = netlink_init(cfg); |
| if (global->netlink == NULL) { |
| os_free(cfg); |
| goto err; |
| } |
| |
| if (wpa_driver_nl80211_init_nl_global(global) < 0) |
| goto err; |
| |
| global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0); |
| if (global->ioctl_sock < 0) { |
| wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s", |
| strerror(errno)); |
| goto err; |
| } |
| |
| return global; |
| |
| err: |
| nl80211_global_deinit(global); |
| return NULL; |
| } |
| |
| |
| static void nl80211_global_deinit(void *priv) |
| { |
| struct nl80211_global *global = priv; |
| if (global == NULL) |
| return; |
| if (!dl_list_empty(&global->interfaces)) { |
| wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at " |
| "nl80211_global_deinit", |
| dl_list_len(&global->interfaces)); |
| } |
| |
| if (global->netlink) |
| netlink_deinit(global->netlink); |
| |
| nl_destroy_handles(&global->nl); |
| |
| if (global->nl_event) |
| nl80211_destroy_eloop_handle(&global->nl_event); |
| |
| nl_cb_put(global->nl_cb); |
| |
| if (global->ioctl_sock >= 0) |
| close(global->ioctl_sock); |
| |
| os_free(global); |
| } |
| |
| |
| static const char * nl80211_get_radio_name(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| return drv->phyname; |
| } |
| |
| |
| static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid, |
| const u8 *pmkid) |
| { |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(bss->drv, msg, 0, cmd); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname)); |
| if (pmkid) |
| NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid); |
| if (bssid) |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); |
| |
| return send_and_recv_msgs(bss->drv, msg, NULL, NULL); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) |
| { |
| struct i802_bss *bss = priv; |
| wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid)); |
| return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid); |
| } |
| |
| |
| static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid) |
| { |
| struct i802_bss *bss = priv; |
| wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR, |
| MAC2STR(bssid)); |
| return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid); |
| } |
| |
| |
| static int nl80211_flush_pmkid(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs"); |
| return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL); |
| } |
| |
| |
| static void clean_survey_results(struct survey_results *survey_results) |
| { |
| struct freq_survey *survey, *tmp; |
| |
| if (dl_list_empty(&survey_results->survey_list)) |
| return; |
| |
| dl_list_for_each_safe(survey, tmp, &survey_results->survey_list, |
| struct freq_survey, list) { |
| dl_list_del(&survey->list); |
| os_free(survey); |
| } |
| } |
| |
| |
| static void add_survey(struct nlattr **sinfo, u32 ifidx, |
| struct dl_list *survey_list) |
| { |
| struct freq_survey *survey; |
| |
| survey = os_zalloc(sizeof(struct freq_survey)); |
| if (!survey) |
| return; |
| |
| survey->ifidx = ifidx; |
| survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); |
| survey->filled = 0; |
| |
| if (sinfo[NL80211_SURVEY_INFO_NOISE]) { |
| survey->nf = (int8_t) |
| nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]); |
| survey->filled |= SURVEY_HAS_NF; |
| } |
| |
| if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) { |
| survey->channel_time = |
| nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]); |
| survey->filled |= SURVEY_HAS_CHAN_TIME; |
| } |
| |
| if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) { |
| survey->channel_time_busy = |
| nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]); |
| survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY; |
| } |
| |
| if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) { |
| survey->channel_time_rx = |
| nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]); |
| survey->filled |= SURVEY_HAS_CHAN_TIME_RX; |
| } |
| |
| if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) { |
| survey->channel_time_tx = |
| nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]); |
| survey->filled |= SURVEY_HAS_CHAN_TIME_TX; |
| } |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Freq survey dump event (freq=%d MHz noise=%d channel_time=%ld busy_time=%ld tx_time=%ld rx_time=%ld filled=%04x)", |
| survey->freq, |
| survey->nf, |
| (unsigned long int) survey->channel_time, |
| (unsigned long int) survey->channel_time_busy, |
| (unsigned long int) survey->channel_time_tx, |
| (unsigned long int) survey->channel_time_rx, |
| survey->filled); |
| |
| dl_list_add_tail(survey_list, &survey->list); |
| } |
| |
| |
| static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq, |
| unsigned int freq_filter) |
| { |
| if (!freq_filter) |
| return 1; |
| |
| return freq_filter == surveyed_freq; |
| } |
| |
| |
| static int survey_handler(struct nl_msg *msg, void *arg) |
| { |
| struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; |
| struct survey_results *survey_results; |
| u32 surveyed_freq = 0; |
| u32 ifidx; |
| |
| static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { |
| [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, |
| [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, |
| }; |
| |
| survey_results = (struct survey_results *) arg; |
| |
| nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| genlmsg_attrlen(gnlh, 0), NULL); |
| |
| if (!tb[NL80211_ATTR_IFINDEX]) |
| return NL_SKIP; |
| |
| ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); |
| |
| if (!tb[NL80211_ATTR_SURVEY_INFO]) |
| return NL_SKIP; |
| |
| if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, |
| tb[NL80211_ATTR_SURVEY_INFO], |
| survey_policy)) |
| return NL_SKIP; |
| |
| if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) { |
| wpa_printf(MSG_ERROR, "nl80211: Invalid survey data"); |
| return NL_SKIP; |
| } |
| |
| surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]); |
| |
| if (!check_survey_ok(sinfo, surveyed_freq, |
| survey_results->freq_filter)) |
| return NL_SKIP; |
| |
| if (survey_results->freq_filter && |
| survey_results->freq_filter != surveyed_freq) { |
| wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz", |
| surveyed_freq); |
| return NL_SKIP; |
| } |
| |
| add_survey(sinfo, ifidx, &survey_results->survey_list); |
| |
| return NL_SKIP; |
| } |
| |
| |
| static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int err = -ENOBUFS; |
| union wpa_event_data data; |
| struct survey_results *survey_results; |
| |
| os_memset(&data, 0, sizeof(data)); |
| survey_results = &data.survey_results; |
| |
| dl_list_init(&survey_results->survey_list); |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| goto nla_put_failure; |
| |
| nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| |
| if (freq) |
| data.survey_results.freq_filter = freq; |
| |
| do { |
| wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data"); |
| err = send_and_recv_msgs(drv, msg, survey_handler, |
| survey_results); |
| } while (err > 0); |
| |
| if (err) { |
| wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data"); |
| goto out_clean; |
| } |
| |
| wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data); |
| |
| out_clean: |
| clean_survey_results(survey_results); |
| nla_put_failure: |
| return err; |
| } |
| |
| |
| static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck, |
| const u8 *replay_ctr) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nlattr *replay_nested; |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); |
| |
| replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); |
| if (!replay_nested) |
| goto nla_put_failure; |
| |
| NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek); |
| NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck); |
| NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN, |
| replay_ctr); |
| |
| nla_nest_end(msg, replay_nested); |
| |
| send_and_recv_msgs(drv, msg, NULL, NULL); |
| return; |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| |
| static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr, |
| const u8 *addr, int qos) |
| { |
| /* send data frame to poll STA and check whether |
| * this frame is ACKed */ |
| struct { |
| struct ieee80211_hdr hdr; |
| u16 qos_ctl; |
| } STRUCT_PACKED nulldata; |
| size_t size; |
| |
| /* Send data frame to poll STA and check whether this frame is ACKed */ |
| |
| os_memset(&nulldata, 0, sizeof(nulldata)); |
| |
| if (qos) { |
| nulldata.hdr.frame_control = |
| IEEE80211_FC(WLAN_FC_TYPE_DATA, |
| WLAN_FC_STYPE_QOS_NULL); |
| size = sizeof(nulldata); |
| } else { |
| nulldata.hdr.frame_control = |
| IEEE80211_FC(WLAN_FC_TYPE_DATA, |
| WLAN_FC_STYPE_NULLFUNC); |
| size = sizeof(struct ieee80211_hdr); |
| } |
| |
| nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS); |
| os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN); |
| os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN); |
| os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN); |
| |
| if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0, |
| 0, 0) < 0) |
| wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to " |
| "send poll frame"); |
| } |
| |
| static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr, |
| int qos) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| |
| if (!drv->poll_command_supported) { |
| nl80211_send_null_frame(bss, own_addr, addr, qos); |
| return; |
| } |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT); |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); |
| |
| send_and_recv_msgs(drv, msg, NULL, NULL); |
| return; |
| nla_put_failure: |
| nlmsg_free(msg); |
| } |
| |
| |
| static int nl80211_set_power_save(struct i802_bss *bss, int enabled) |
| { |
| struct nl_msg *msg; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex); |
| NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, |
| enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED); |
| return send_and_recv_msgs(bss->drv, msg, NULL, NULL); |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps, |
| int ctwindow) |
| { |
| struct i802_bss *bss = priv; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d " |
| "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow); |
| |
| if (opp_ps != -1 || ctwindow != -1) { |
| #ifdef ANDROID_P2P |
| wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow); |
| #else /* ANDROID_P2P */ |
| return -1; /* Not yet supported */ |
| #endif /* ANDROID_P2P */ |
| } |
| |
| if (legacy_ps == -1) |
| return 0; |
| if (legacy_ps != 0 && legacy_ps != 1) |
| return -1; /* Not yet supported */ |
| |
| return nl80211_set_power_save(bss, legacy_ps); |
| } |
| |
| |
| static int nl80211_start_radar_detection(void *priv, |
| struct hostapd_freq_params *freq) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC) %d MHz (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)", |
| freq->freq, freq->ht_enabled, freq->vht_enabled, |
| freq->bandwidth, freq->center_freq1, freq->center_freq2); |
| |
| if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar " |
| "detection"); |
| return -1; |
| } |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -1; |
| |
| nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq); |
| |
| if (freq->vht_enabled) { |
| switch (freq->bandwidth) { |
| case 20: |
| NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, |
| NL80211_CHAN_WIDTH_20); |
| break; |
| case 40: |
| NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, |
| NL80211_CHAN_WIDTH_40); |
| break; |
| case 80: |
| if (freq->center_freq2) |
| NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, |
| NL80211_CHAN_WIDTH_80P80); |
| else |
| NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, |
| NL80211_CHAN_WIDTH_80); |
| break; |
| case 160: |
| NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, |
| NL80211_CHAN_WIDTH_160); |
| break; |
| default: |
| return -1; |
| } |
| NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1); |
| if (freq->center_freq2) |
| NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, |
| freq->center_freq2); |
| } else if (freq->ht_enabled) { |
| switch (freq->sec_channel_offset) { |
| case -1: |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
| NL80211_CHAN_HT40MINUS); |
| break; |
| case 1: |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
| NL80211_CHAN_HT40PLUS); |
| break; |
| default: |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
| NL80211_CHAN_HT20); |
| break; |
| } |
| } |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| if (ret == 0) |
| return 0; |
| wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: " |
| "%d (%s)", ret, strerror(-ret)); |
| nla_put_failure: |
| return -1; |
| } |
| |
| #ifdef CONFIG_TDLS |
| |
| static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code, |
| u8 dialog_token, u16 status_code, |
| const u8 *buf, size_t len) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| |
| if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) |
| return -EOPNOTSUPP; |
| |
| if (!dst) |
| return -EINVAL; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); |
| NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code); |
| NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token); |
| NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code); |
| NLA_PUT(msg, NL80211_ATTR_IE, len, buf); |
| |
| return send_and_recv_msgs(drv, msg, NULL, NULL); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| enum nl80211_tdls_operation nl80211_oper; |
| |
| if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) |
| return -EOPNOTSUPP; |
| |
| switch (oper) { |
| case TDLS_DISCOVERY_REQ: |
| nl80211_oper = NL80211_TDLS_DISCOVERY_REQ; |
| break; |
| case TDLS_SETUP: |
| nl80211_oper = NL80211_TDLS_SETUP; |
| break; |
| case TDLS_TEARDOWN: |
| nl80211_oper = NL80211_TDLS_TEARDOWN; |
| break; |
| case TDLS_ENABLE_LINK: |
| nl80211_oper = NL80211_TDLS_ENABLE_LINK; |
| break; |
| case TDLS_DISABLE_LINK: |
| nl80211_oper = NL80211_TDLS_DISABLE_LINK; |
| break; |
| case TDLS_ENABLE: |
| return 0; |
| case TDLS_DISABLE: |
| return 0; |
| default: |
| return -EINVAL; |
| } |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER); |
| NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); |
| |
| return send_and_recv_msgs(drv, msg, NULL, NULL); |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| #endif /* CONFIG TDLS */ |
| |
| |
| #ifdef ANDROID |
| |
| typedef struct android_wifi_priv_cmd { |
| char *buf; |
| int used_len; |
| int total_len; |
| } android_wifi_priv_cmd; |
| |
| static int drv_errors = 0; |
| |
| static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv) |
| { |
| drv_errors++; |
| if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) { |
| drv_errors = 0; |
| wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED"); |
| } |
| } |
| |
| |
| static int android_priv_cmd(struct i802_bss *bss, const char *cmd) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct ifreq ifr; |
| android_wifi_priv_cmd priv_cmd; |
| char buf[MAX_DRV_CMD_SIZE]; |
| int ret; |
| |
| os_memset(&ifr, 0, sizeof(ifr)); |
| os_memset(&priv_cmd, 0, sizeof(priv_cmd)); |
| os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); |
| |
| os_memset(buf, 0, sizeof(buf)); |
| os_strlcpy(buf, cmd, sizeof(buf)); |
| |
| priv_cmd.buf = buf; |
| priv_cmd.used_len = sizeof(buf); |
| priv_cmd.total_len = sizeof(buf); |
| ifr.ifr_data = &priv_cmd; |
| |
| ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); |
| if (ret < 0) { |
| wpa_printf(MSG_ERROR, "%s: failed to issue private commands", |
| __func__); |
| wpa_driver_send_hang_msg(drv); |
| return ret; |
| } |
| |
| drv_errors = 0; |
| return 0; |
| } |
| |
| |
| static int android_pno_start(struct i802_bss *bss, |
| struct wpa_driver_scan_params *params) |
| { |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct ifreq ifr; |
| android_wifi_priv_cmd priv_cmd; |
| int ret = 0, i = 0, bp; |
| char buf[WEXT_PNO_MAX_COMMAND_SIZE]; |
| |
| bp = WEXT_PNOSETUP_HEADER_SIZE; |
| os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp); |
| buf[bp++] = WEXT_PNO_TLV_PREFIX; |
| buf[bp++] = WEXT_PNO_TLV_VERSION; |
| buf[bp++] = WEXT_PNO_TLV_SUBVERSION; |
| buf[bp++] = WEXT_PNO_TLV_RESERVED; |
| |
| while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) { |
| /* Check that there is enough space needed for 1 more SSID, the |
| * other sections and null termination */ |
| if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN + |
| WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf)) |
| break; |
| wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan", |
| params->ssids[i].ssid, |
| params->ssids[i].ssid_len); |
| buf[bp++] = WEXT_PNO_SSID_SECTION; |
| buf[bp++] = params->ssids[i].ssid_len; |
| os_memcpy(&buf[bp], params->ssids[i].ssid, |
| params->ssids[i].ssid_len); |
| bp += params->ssids[i].ssid_len; |
| i++; |
| } |
| |
| buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION; |
| os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", |
| WEXT_PNO_SCAN_INTERVAL); |
| bp += WEXT_PNO_SCAN_INTERVAL_LENGTH; |
| |
| buf[bp++] = WEXT_PNO_REPEAT_SECTION; |
| os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", |
| WEXT_PNO_REPEAT); |
| bp += WEXT_PNO_REPEAT_LENGTH; |
| |
| buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION; |
| os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", |
| WEXT_PNO_MAX_REPEAT); |
| bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1; |
| |
| memset(&ifr, 0, sizeof(ifr)); |
| memset(&priv_cmd, 0, sizeof(priv_cmd)); |
| os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ); |
| |
| priv_cmd.buf = buf; |
| priv_cmd.used_len = bp; |
| priv_cmd.total_len = bp; |
| ifr.ifr_data = &priv_cmd; |
| |
| ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr); |
| |
| if (ret < 0) { |
| wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", |
| ret); |
| wpa_driver_send_hang_msg(drv); |
| return ret; |
| } |
| |
| drv_errors = 0; |
| |
| return android_priv_cmd(bss, "PNOFORCE 1"); |
| } |
| |
| |
| static int android_pno_stop(struct i802_bss *bss) |
| { |
| return android_priv_cmd(bss, "PNOFORCE 0"); |
| } |
| |
| #endif /* ANDROID */ |
| |
| |
| static int driver_nl80211_set_key(const char *ifname, void *priv, |
| enum wpa_alg alg, const u8 *addr, |
| int key_idx, int set_tx, |
| const u8 *seq, size_t seq_len, |
| const u8 *key, size_t key_len) |
| { |
| struct i802_bss *bss = priv; |
| return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx, |
| set_tx, seq, seq_len, key, key_len); |
| } |
| |
| |
| static int driver_nl80211_scan2(void *priv, |
| struct wpa_driver_scan_params *params) |
| { |
| struct i802_bss *bss = priv; |
| return wpa_driver_nl80211_scan(bss, params); |
| } |
| |
| |
| static int driver_nl80211_deauthenticate(void *priv, const u8 *addr, |
| int reason_code) |
| { |
| struct i802_bss *bss = priv; |
| return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code); |
| } |
| |
| |
| static int driver_nl80211_authenticate(void *priv, |
| struct wpa_driver_auth_params *params) |
| { |
| struct i802_bss *bss = priv; |
| return wpa_driver_nl80211_authenticate(bss, params); |
| } |
| |
| |
| static void driver_nl80211_deinit(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| wpa_driver_nl80211_deinit(bss); |
| } |
| |
| |
| static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type, |
| const char *ifname) |
| { |
| struct i802_bss *bss = priv; |
| return wpa_driver_nl80211_if_remove(bss, type, ifname); |
| } |
| |
| |
| static int driver_nl80211_send_mlme(void *priv, const u8 *data, |
| size_t data_len, int noack) |
| { |
| struct i802_bss *bss = priv; |
| return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack, |
| 0, 0, 0, 0); |
| } |
| |
| |
| static int driver_nl80211_sta_remove(void *priv, const u8 *addr) |
| { |
| struct i802_bss *bss = priv; |
| return wpa_driver_nl80211_sta_remove(bss, addr); |
| } |
| |
| |
| static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr, |
| const char *ifname, int vlan_id) |
| { |
| struct i802_bss *bss = priv; |
| return i802_set_sta_vlan(bss, addr, ifname, vlan_id); |
| } |
| |
| |
| static int driver_nl80211_read_sta_data(void *priv, |
| struct hostap_sta_driver_data *data, |
| const u8 *addr) |
| { |
| struct i802_bss *bss = priv; |
| return i802_read_sta_data(bss, data, addr); |
| } |
| |
| |
| static int driver_nl80211_send_action(void *priv, unsigned int freq, |
| unsigned int wait_time, |
| const u8 *dst, const u8 *src, |
| const u8 *bssid, |
| const u8 *data, size_t data_len, |
| int no_cck) |
| { |
| struct i802_bss *bss = priv; |
| return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src, |
| bssid, data, data_len, no_cck); |
| } |
| |
| |
| static int driver_nl80211_probe_req_report(void *priv, int report) |
| { |
| struct i802_bss *bss = priv; |
| return wpa_driver_nl80211_probe_req_report(bss, report); |
| } |
| |
| |
| static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md, |
| const u8 *ies, size_t ies_len) |
| { |
| int ret; |
| struct nl_msg *msg; |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| u16 mdid = WPA_GET_LE16(md); |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs"); |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies); |
| NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed " |
| "err=%d (%s)", ret, strerror(-ret)); |
| } |
| |
| return ret; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| const u8 * wpa_driver_nl80211_get_macaddr(void *priv) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| |
| if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) |
| return NULL; |
| |
| return bss->addr; |
| } |
| |
| |
| static const char * scan_state_str(enum scan_states scan_state) |
| { |
| switch (scan_state) { |
| case NO_SCAN: |
| return "NO_SCAN"; |
| case SCAN_REQUESTED: |
| return "SCAN_REQUESTED"; |
| case SCAN_STARTED: |
| return "SCAN_STARTED"; |
| case SCAN_COMPLETED: |
| return "SCAN_COMPLETED"; |
| case SCAN_ABORTED: |
| return "SCAN_ABORTED"; |
| case SCHED_SCAN_STARTED: |
| return "SCHED_SCAN_STARTED"; |
| case SCHED_SCAN_STOPPED: |
| return "SCHED_SCAN_STOPPED"; |
| case SCHED_SCAN_RESULTS: |
| return "SCHED_SCAN_RESULTS"; |
| } |
| |
| return "??"; |
| } |
| |
| |
| static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| int res; |
| char *pos, *end; |
| |
| pos = buf; |
| end = buf + buflen; |
| |
| res = os_snprintf(pos, end - pos, |
| "ifindex=%d\n" |
| "ifname=%s\n" |
| "brname=%s\n" |
| "addr=" MACSTR "\n" |
| "freq=%d\n" |
| "%s%s%s%s%s", |
| bss->ifindex, |
| bss->ifname, |
| bss->brname, |
| MAC2STR(bss->addr), |
| bss->freq, |
| bss->beacon_set ? "beacon_set=1\n" : "", |
| bss->added_if_into_bridge ? |
| "added_if_into_bridge=1\n" : "", |
| bss->added_bridge ? "added_bridge=1\n" : "", |
| bss->in_deinit ? "in_deinit=1\n" : "", |
| bss->if_dynamic ? "if_dynamic=1\n" : ""); |
| if (res < 0 || res >= end - pos) |
| return pos - buf; |
| pos += res; |
| |
| if (bss->wdev_id_set) { |
| res = os_snprintf(pos, end - pos, "wdev_id=%llu\n", |
| (unsigned long long) bss->wdev_id); |
| if (res < 0 || res >= end - pos) |
| return pos - buf; |
| pos += res; |
| } |
| |
| res = os_snprintf(pos, end - pos, |
| "phyname=%s\n" |
| "drv_ifindex=%d\n" |
| "operstate=%d\n" |
| "scan_state=%s\n" |
| "auth_bssid=" MACSTR "\n" |
| "auth_attempt_bssid=" MACSTR "\n" |
| "bssid=" MACSTR "\n" |
| "prev_bssid=" MACSTR "\n" |
| "associated=%d\n" |
| "assoc_freq=%u\n" |
| "monitor_sock=%d\n" |
| "monitor_ifidx=%d\n" |
| "monitor_refcount=%d\n" |
| "last_mgmt_freq=%u\n" |
| "eapol_tx_sock=%d\n" |
| "%s%s%s%s%s%s%s%s%s%s%s%s%s", |
| drv->phyname, |
| drv->ifindex, |
| drv->operstate, |
| scan_state_str(drv->scan_state), |
| MAC2STR(drv->auth_bssid), |
| MAC2STR(drv->auth_attempt_bssid), |
| MAC2STR(drv->bssid), |
| MAC2STR(drv->prev_bssid), |
| drv->associated, |
| drv->assoc_freq, |
| drv->monitor_sock, |
| drv->monitor_ifidx, |
| drv->monitor_refcount, |
| drv->last_mgmt_freq, |
| drv->eapol_tx_sock, |
| drv->ignore_if_down_event ? |
| "ignore_if_down_event=1\n" : "", |
| drv->scan_complete_events ? |
| "scan_complete_events=1\n" : "", |
| drv->disabled_11b_rates ? |
| "disabled_11b_rates=1\n" : "", |
| drv->pending_remain_on_chan ? |
| "pending_remain_on_chan=1\n" : "", |
| drv->in_interface_list ? "in_interface_list=1\n" : "", |
| drv->device_ap_sme ? "device_ap_sme=1\n" : "", |
| drv->poll_command_supported ? |
| "poll_command_supported=1\n" : "", |
| drv->data_tx_status ? "data_tx_status=1\n" : "", |
| drv->scan_for_auth ? "scan_for_auth=1\n" : "", |
| drv->retry_auth ? "retry_auth=1\n" : "", |
| drv->use_monitor ? "use_monitor=1\n" : "", |
| drv->ignore_next_local_disconnect ? |
| "ignore_next_local_disconnect=1\n" : "", |
| drv->allow_p2p_device ? "allow_p2p_device=1\n" : ""); |
| if (res < 0 || res >= end - pos) |
| return pos - buf; |
| pos += res; |
| |
| if (drv->has_capability) { |
| res = os_snprintf(pos, end - pos, |
| "capa.key_mgmt=0x%x\n" |
| "capa.enc=0x%x\n" |
| "capa.auth=0x%x\n" |
| "capa.flags=0x%x\n" |
| "capa.max_scan_ssids=%d\n" |
| "capa.max_sched_scan_ssids=%d\n" |
| "capa.sched_scan_supported=%d\n" |
| "capa.max_match_sets=%d\n" |
| "capa.max_remain_on_chan=%u\n" |
| "capa.max_stations=%u\n" |
| "capa.probe_resp_offloads=0x%x\n" |
| "capa.max_acl_mac_addrs=%u\n" |
| "capa.num_multichan_concurrent=%u\n", |
| drv->capa.key_mgmt, |
| drv->capa.enc, |
| drv->capa.auth, |
| drv->capa.flags, |
| drv->capa.max_scan_ssids, |
| drv->capa.max_sched_scan_ssids, |
| drv->capa.sched_scan_supported, |
| drv->capa.max_match_sets, |
| drv->capa.max_remain_on_chan, |
| drv->capa.max_stations, |
| drv->capa.probe_resp_offloads, |
| drv->capa.max_acl_mac_addrs, |
| drv->capa.num_multichan_concurrent); |
| if (res < 0 || res >= end - pos) |
| return pos - buf; |
| pos += res; |
| } |
| |
| return pos - buf; |
| } |
| |
| |
| static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings) |
| { |
| if (settings->head) |
| NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, |
| settings->head_len, settings->head); |
| |
| if (settings->tail) |
| NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, |
| settings->tail_len, settings->tail); |
| |
| if (settings->beacon_ies) |
| NLA_PUT(msg, NL80211_ATTR_IE, |
| settings->beacon_ies_len, settings->beacon_ies); |
| |
| if (settings->proberesp_ies) |
| NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP, |
| settings->proberesp_ies_len, settings->proberesp_ies); |
| |
| if (settings->assocresp_ies) |
| NLA_PUT(msg, |
| NL80211_ATTR_IE_ASSOC_RESP, |
| settings->assocresp_ies_len, settings->assocresp_ies); |
| |
| if (settings->probe_resp) |
| NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, |
| settings->probe_resp_len, settings->probe_resp); |
| |
| return 0; |
| |
| nla_put_failure: |
| return -ENOBUFS; |
| } |
| |
| |
| static int nl80211_switch_channel(void *priv, struct csa_settings *settings) |
| { |
| struct nl_msg *msg; |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nlattr *beacon_csa; |
| int ret = -ENOBUFS; |
| |
| wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)", |
| settings->cs_count, settings->block_tx, |
| settings->freq_params.freq, settings->freq_params.bandwidth, |
| settings->freq_params.center_freq1, |
| settings->freq_params.center_freq2); |
| |
| if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) { |
| wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command"); |
| return -EOPNOTSUPP; |
| } |
| |
| if ((drv->nlmode != NL80211_IFTYPE_AP) && |
| (drv->nlmode != NL80211_IFTYPE_P2P_GO)) |
| return -EOPNOTSUPP; |
| |
| /* check settings validity */ |
| if (!settings->beacon_csa.tail || |
| ((settings->beacon_csa.tail_len <= |
| settings->counter_offset_beacon) || |
| (settings->beacon_csa.tail[settings->counter_offset_beacon] != |
| settings->cs_count))) |
| return -EINVAL; |
| |
| if (settings->beacon_csa.probe_resp && |
| ((settings->beacon_csa.probe_resp_len <= |
| settings->counter_offset_presp) || |
| (settings->beacon_csa.probe_resp[settings->counter_offset_presp] != |
| settings->cs_count))) |
| return -EINVAL; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count); |
| ret = nl80211_put_freq_params(msg, &settings->freq_params); |
| if (ret) |
| goto error; |
| |
| if (settings->block_tx) |
| NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX); |
| |
| /* beacon_after params */ |
| ret = set_beacon_data(msg, &settings->beacon_after); |
| if (ret) |
| goto error; |
| |
| /* beacon_csa params */ |
| beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES); |
| if (!beacon_csa) |
| goto nla_put_failure; |
| |
| ret = set_beacon_data(msg, &settings->beacon_csa); |
| if (ret) |
| goto error; |
| |
| NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON, |
| settings->counter_offset_beacon); |
| |
| if (settings->beacon_csa.probe_resp) |
| NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP, |
| settings->counter_offset_presp); |
| |
| nla_nest_end(msg, beacon_csa); |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| if (ret) { |
| wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)", |
| ret, strerror(-ret)); |
| } |
| return ret; |
| |
| nla_put_failure: |
| ret = -ENOBUFS; |
| error: |
| nlmsg_free(msg); |
| wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request"); |
| return ret; |
| } |
| |
| |
| static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set, |
| u8 qos_map_set_len) |
| { |
| struct i802_bss *bss = priv; |
| struct wpa_driver_nl80211_data *drv = bss->drv; |
| struct nl_msg *msg; |
| int ret; |
| |
| msg = nlmsg_alloc(); |
| if (!msg) |
| return -ENOMEM; |
| |
| wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map", |
| qos_map_set, qos_map_set_len); |
| |
| nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP); |
| NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex); |
| NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set); |
| |
| ret = send_and_recv_msgs(drv, msg, NULL, NULL); |
| if (ret) |
| wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed"); |
| |
| return ret; |
| |
| nla_put_failure: |
| nlmsg_free(msg); |
| return -ENOBUFS; |
| } |
| |
| |
| const struct wpa_driver_ops wpa_driver_nl80211_ops = { |
| .name = "nl80211", |
| .desc = "Linux nl80211/cfg80211", |
| .get_bssid = wpa_driver_nl80211_get_bssid, |
| .get_ssid = wpa_driver_nl80211_get_ssid, |
| .set_key = driver_nl80211_set_key, |
| .scan2 = driver_nl80211_scan2, |
| .sched_scan = wpa_driver_nl80211_sched_scan, |
| .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan, |
| .get_scan_results2 = wpa_driver_nl80211_get_scan_results, |
| .deauthenticate = driver_nl80211_deauthenticate, |
| .authenticate = driver_nl80211_authenticate, |
| .associate = wpa_driver_nl80211_associate, |
| .global_init = nl80211_global_init, |
| .global_deinit = nl80211_global_deinit, |
| .init2 = wpa_driver_nl80211_init, |
| .deinit = driver_nl80211_deinit, |
| .get_capa = wpa_driver_nl80211_get_capa, |
| .set_operstate = wpa_driver_nl80211_set_operstate, |
| .set_supp_port = wpa_driver_nl80211_set_supp_port, |
| .set_country = wpa_driver_nl80211_set_country, |
| .get_country = wpa_driver_nl80211_get_country, |
| .set_ap = wpa_driver_nl80211_set_ap, |
| .set_acl = wpa_driver_nl80211_set_acl, |
| .if_add = wpa_driver_nl80211_if_add, |
| .if_remove = driver_nl80211_if_remove, |
| .send_mlme = driver_nl80211_send_mlme, |
| .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data, |
| .sta_add = wpa_driver_nl80211_sta_add, |
| .sta_remove = driver_nl80211_sta_remove, |
| .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol, |
| .sta_set_flags = wpa_driver_nl80211_sta_set_flags, |
| .hapd_init = i802_init, |
| .hapd_deinit = i802_deinit, |
| .set_wds_sta = i802_set_wds_sta, |
| .get_seqnum = i802_get_seqnum, |
| .flush = i802_flush, |
| .get_inact_sec = i802_get_inact_sec, |
| .sta_clear_stats = i802_sta_clear_stats, |
| .set_rts = i802_set_rts, |
| .set_frag = i802_set_frag, |
| .set_tx_queue_params = i802_set_tx_queue_params, |
| .set_sta_vlan = driver_nl80211_set_sta_vlan, |
| .sta_deauth = i802_sta_deauth, |
| .sta_disassoc = i802_sta_disassoc, |
| .read_sta_data = driver_nl80211_read_sta_data, |
| .set_freq = i802_set_freq, |
| .send_action = driver_nl80211_send_action, |
| .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait, |
| .remain_on_channel = wpa_driver_nl80211_remain_on_channel, |
| .cancel_remain_on_channel = |
| wpa_driver_nl80211_cancel_remain_on_channel, |
| .probe_req_report = driver_nl80211_probe_req_report, |
| .deinit_ap = wpa_driver_nl80211_deinit_ap, |
| .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli, |
| .resume = wpa_driver_nl80211_resume, |
| .send_ft_action = nl80211_send_ft_action, |
| .signal_monitor = nl80211_signal_monitor, |
| .signal_poll = nl80211_signal_poll, |
| .send_frame = nl80211_send_frame, |
| .shared_freq = wpa_driver_nl80211_shared_freq, |
| .set_param = nl80211_set_param, |
| .get_radio_name = nl80211_get_radio_name, |
| .add_pmkid = nl80211_add_pmkid, |
| .remove_pmkid = nl80211_remove_pmkid, |
| .flush_pmkid = nl80211_flush_pmkid, |
| .set_rekey_info = nl80211_set_rekey_info, |
| .poll_client = nl80211_poll_client, |
| .set_p2p_powersave = nl80211_set_p2p_powersave, |
| .start_dfs_cac = nl80211_start_radar_detection, |
| .stop_ap = wpa_driver_nl80211_stop_ap, |
| #ifdef CONFIG_TDLS |
| .send_tdls_mgmt = nl80211_send_tdls_mgmt, |
| .tdls_oper = nl80211_tdls_oper, |
| #endif /* CONFIG_TDLS */ |
| .update_ft_ies = wpa_driver_nl80211_update_ft_ies, |
| .get_mac_addr = wpa_driver_nl80211_get_macaddr, |
| .get_survey = wpa_driver_nl80211_get_survey, |
| .status = wpa_driver_nl80211_status, |
| .switch_channel = nl80211_switch_channel, |
| #ifdef ANDROID_P2P |
| .set_noa = wpa_driver_set_p2p_noa, |
| .get_noa = wpa_driver_get_p2p_noa, |
| .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie, |
| #endif /* ANDROID_P2P */ |
| #ifdef ANDROID |
| .driver_cmd = wpa_driver_nl80211_driver_cmd, |
| #endif /* ANDROID */ |
| .set_qos_map = nl80211_set_qos_map, |
| }; |