cfg80211: Userspace may inform kernel of mesh auth method.
Authentication takes place in userspace, but the beacon is
generated in the kernel. Allow userspace to inform the
kernel of the authentication method so the appropriate
mesh config IE can be set prior to beacon generation when
joining the MBSS.
Signed-off-by: Colleen Twitty <colleen@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 26e9113..32a2f1b 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1161,6 +1161,7 @@
* @sync_method: which synchronization method to use
* @path_sel_proto: which path selection protocol to use
* @path_metric: which metric to use
+ * @auth_id: which authentication method this mesh is using
* @ie: vendor information elements (optional)
* @ie_len: length of vendor information elements
* @is_authenticated: this mesh requires authentication
@@ -1179,6 +1180,7 @@
u8 sync_method;
u8 path_sel_proto;
u8 path_metric;
+ u8 auth_id;
const u8 *ie;
u8 ie_len;
bool is_authenticated;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index b484307..0632071 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2645,6 +2645,10 @@
* @NL80211_MESH_SETUP_USERSPACE_MPM: Enable this option if userspace will
* implement an MPM which handles peer allocation and state.
*
+ * @NL80211_MESH_SETUP_AUTH_PROTOCOL: Inform the kernel of the authentication
+ * method (u8, as defined in IEEE 8.4.2.100.6, e.g. 0x1 for SAE).
+ * Default is no authentication method required.
+ *
* @NL80211_MESH_SETUP_ATTR_MAX: highest possible mesh setup attribute number
*
* @__NL80211_MESH_SETUP_ATTR_AFTER_LAST: Internal use
@@ -2658,6 +2662,7 @@
NL80211_MESH_SETUP_USERSPACE_AMPE,
NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC,
NL80211_MESH_SETUP_USERSPACE_MPM,
+ NL80211_MESH_SETUP_AUTH_PROTOCOL,
/* keep last */
__NL80211_MESH_SETUP_ATTR_AFTER_LAST,
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 0bb93f3..9546ad2 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -82,6 +82,7 @@
.sync_method = IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET,
.path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP,
.path_metric = IEEE80211_PATH_METRIC_AIRTIME,
+ .auth_id = 0, /* open */
.ie = NULL,
.ie_len = 0,
.is_secure = false,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 9cdcd9e..5f10f7a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4672,6 +4672,7 @@
[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
+ [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
[NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
[NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
.len = IEEE80211_MAX_DATA_LEN },
@@ -4857,6 +4858,13 @@
if (setup->is_secure)
setup->user_mpm = true;
+ if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
+ if (!setup->user_mpm)
+ return -EINVAL;
+ setup->auth_id =
+ nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
+ }
+
return 0;
}