Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1 | /* |
| 2 | * net/tipc/config.c: TIPC configuration management code |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 3 | * |
Per Liden | 593a5f2 | 2006-01-11 19:14:19 +0100 | [diff] [blame] | 4 | * Copyright (c) 2002-2006, Ericsson AB |
Allan Stephens | 59f0c45 | 2008-05-21 14:52:30 -0700 | [diff] [blame] | 5 | * Copyright (c) 2004-2007, Wind River Systems |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 6 | * All rights reserved. |
| 7 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 8 | * Redistribution and use in source and binary forms, with or without |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 9 | * modification, are permitted provided that the following conditions are met: |
| 10 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. Neither the names of the copyright holders nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 19 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 20 | * Alternatively, this software may be distributed under the terms of the |
| 21 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 22 | * Software Foundation. |
| 23 | * |
| 24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| 28 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 29 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 30 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 31 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 32 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 33 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 34 | * POSSIBILITY OF SUCH DAMAGE. |
| 35 | */ |
| 36 | |
| 37 | #include "core.h" |
| 38 | #include "dbg.h" |
| 39 | #include "bearer.h" |
| 40 | #include "port.h" |
| 41 | #include "link.h" |
| 42 | #include "zone.h" |
| 43 | #include "addr.h" |
| 44 | #include "name_table.h" |
| 45 | #include "node.h" |
| 46 | #include "config.h" |
| 47 | #include "discover.h" |
| 48 | |
| 49 | struct subscr_data { |
| 50 | char usr_handle[8]; |
| 51 | u32 domain; |
| 52 | u32 port_ref; |
| 53 | struct list_head subd_list; |
| 54 | }; |
| 55 | |
| 56 | struct manager { |
| 57 | u32 user_ref; |
| 58 | u32 port_ref; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 59 | }; |
| 60 | |
| 61 | static struct manager mng = { 0}; |
| 62 | |
Ingo Molnar | 34af946 | 2006-06-27 02:53:55 -0700 | [diff] [blame] | 63 | static DEFINE_SPINLOCK(config_lock); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 64 | |
| 65 | static const void *req_tlv_area; /* request message TLV area */ |
| 66 | static int req_tlv_space; /* request message TLV area size */ |
| 67 | static int rep_headroom; /* reply message headroom to use */ |
| 68 | |
| 69 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 70 | struct sk_buff *tipc_cfg_reply_alloc(int payload_size) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 71 | { |
| 72 | struct sk_buff *buf; |
| 73 | |
| 74 | buf = alloc_skb(rep_headroom + payload_size, GFP_ATOMIC); |
| 75 | if (buf) |
| 76 | skb_reserve(buf, rep_headroom); |
| 77 | return buf; |
| 78 | } |
| 79 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 80 | int tipc_cfg_append_tlv(struct sk_buff *buf, int tlv_type, |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 81 | void *tlv_data, int tlv_data_size) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 82 | { |
Arnaldo Carvalho de Melo | 27a884d | 2007-04-19 20:29:13 -0700 | [diff] [blame] | 83 | struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(buf); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 84 | int new_tlv_space = TLV_SPACE(tlv_data_size); |
| 85 | |
| 86 | if (skb_tailroom(buf) < new_tlv_space) { |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 87 | dbg("tipc_cfg_append_tlv unable to append TLV\n"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 88 | return 0; |
| 89 | } |
| 90 | skb_put(buf, new_tlv_space); |
| 91 | tlv->tlv_type = htons(tlv_type); |
| 92 | tlv->tlv_len = htons(TLV_LENGTH(tlv_data_size)); |
| 93 | if (tlv_data_size && tlv_data) |
| 94 | memcpy(TLV_DATA(tlv), tlv_data, tlv_data_size); |
| 95 | return 1; |
| 96 | } |
| 97 | |
stephen hemminger | 31e3c3f | 2010-10-13 13:20:35 +0000 | [diff] [blame] | 98 | static struct sk_buff *tipc_cfg_reply_unsigned_type(u16 tlv_type, u32 value) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 99 | { |
| 100 | struct sk_buff *buf; |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 101 | __be32 value_net; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 102 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 103 | buf = tipc_cfg_reply_alloc(TLV_SPACE(sizeof(value))); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 104 | if (buf) { |
| 105 | value_net = htonl(value); |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 106 | tipc_cfg_append_tlv(buf, tlv_type, &value_net, |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 107 | sizeof(value_net)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 108 | } |
| 109 | return buf; |
| 110 | } |
| 111 | |
stephen hemminger | 31e3c3f | 2010-10-13 13:20:35 +0000 | [diff] [blame] | 112 | static struct sk_buff *tipc_cfg_reply_unsigned(u32 value) |
| 113 | { |
| 114 | return tipc_cfg_reply_unsigned_type(TIPC_TLV_UNSIGNED, value); |
| 115 | } |
| 116 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 117 | struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 118 | { |
| 119 | struct sk_buff *buf; |
| 120 | int string_len = strlen(string) + 1; |
| 121 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 122 | buf = tipc_cfg_reply_alloc(TLV_SPACE(string_len)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 123 | if (buf) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 124 | tipc_cfg_append_tlv(buf, tlv_type, string, string_len); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 125 | return buf; |
| 126 | } |
| 127 | |
Allan Stephens | 107e7be | 2010-05-11 14:30:08 +0000 | [diff] [blame] | 128 | #define MAX_STATS_INFO 2000 |
| 129 | |
| 130 | static struct sk_buff *tipc_show_stats(void) |
| 131 | { |
| 132 | struct sk_buff *buf; |
| 133 | struct tlv_desc *rep_tlv; |
| 134 | struct print_buf pb; |
| 135 | int str_len; |
| 136 | u32 value; |
| 137 | |
| 138 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
| 139 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
| 140 | |
| 141 | value = ntohl(*(u32 *)TLV_DATA(req_tlv_area)); |
| 142 | if (value != 0) |
| 143 | return tipc_cfg_reply_error_string("unsupported argument"); |
| 144 | |
| 145 | buf = tipc_cfg_reply_alloc(TLV_SPACE(MAX_STATS_INFO)); |
| 146 | if (buf == NULL) |
| 147 | return NULL; |
| 148 | |
| 149 | rep_tlv = (struct tlv_desc *)buf->data; |
| 150 | tipc_printbuf_init(&pb, (char *)TLV_DATA(rep_tlv), MAX_STATS_INFO); |
| 151 | |
| 152 | tipc_printf(&pb, "TIPC version " TIPC_MOD_VER "\n"); |
| 153 | |
| 154 | /* Use additional tipc_printf()'s to return more info ... */ |
| 155 | |
| 156 | str_len = tipc_printbuf_validate(&pb); |
| 157 | skb_put(buf, TLV_SPACE(str_len)); |
| 158 | TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len); |
| 159 | |
| 160 | return buf; |
| 161 | } |
| 162 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 163 | static struct sk_buff *cfg_enable_bearer(void) |
| 164 | { |
| 165 | struct tipc_bearer_config *args; |
| 166 | |
| 167 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_BEARER_CONFIG)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 168 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 169 | |
| 170 | args = (struct tipc_bearer_config *)TLV_DATA(req_tlv_area); |
| 171 | if (tipc_enable_bearer(args->name, |
| 172 | ntohl(args->detect_scope), |
| 173 | ntohl(args->priority))) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 174 | return tipc_cfg_reply_error_string("unable to enable bearer"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 175 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 176 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 177 | } |
| 178 | |
| 179 | static struct sk_buff *cfg_disable_bearer(void) |
| 180 | { |
| 181 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_BEARER_NAME)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 182 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 183 | |
| 184 | if (tipc_disable_bearer((char *)TLV_DATA(req_tlv_area))) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 185 | return tipc_cfg_reply_error_string("unable to disable bearer"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 186 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 187 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | static struct sk_buff *cfg_set_own_addr(void) |
| 191 | { |
| 192 | u32 addr; |
| 193 | |
| 194 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_NET_ADDR)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 195 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 196 | |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 197 | addr = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 198 | if (addr == tipc_own_addr) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 199 | return tipc_cfg_reply_none(); |
| 200 | if (!tipc_addr_node_valid(addr)) |
| 201 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 202 | " (node address)"); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 203 | if (tipc_mode == TIPC_NET_MODE) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 204 | return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
| 205 | " (cannot change node address once assigned)"); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 206 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 207 | /* |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 208 | * Must release all spinlocks before calling start_net() because |
| 209 | * Linux version of TIPC calls eth_media_start() which calls |
| 210 | * register_netdevice_notifier() which may block! |
| 211 | * |
| 212 | * Temporarily releasing the lock should be harmless for non-Linux TIPC, |
| 213 | * but Linux version of eth_media_start() should really be reworked |
| 214 | * so that it can be called with spinlocks held. |
| 215 | */ |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 216 | |
| 217 | spin_unlock_bh(&config_lock); |
Allan Stephens | 0319437 | 2008-05-21 14:55:04 -0700 | [diff] [blame] | 218 | tipc_core_start_net(addr); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 219 | spin_lock_bh(&config_lock); |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 220 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | static struct sk_buff *cfg_set_remote_mng(void) |
| 224 | { |
| 225 | u32 value; |
| 226 | |
| 227 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 228 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 229 | |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 230 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 231 | tipc_remote_management = (value != 0); |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 232 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | static struct sk_buff *cfg_set_max_publications(void) |
| 236 | { |
| 237 | u32 value; |
| 238 | |
| 239 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 240 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 241 | |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 242 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 243 | if (value != delimit(value, 1, 65535)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 244 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 245 | " (max publications must be 1-65535)"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 246 | tipc_max_publications = value; |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 247 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 248 | } |
| 249 | |
| 250 | static struct sk_buff *cfg_set_max_subscriptions(void) |
| 251 | { |
| 252 | u32 value; |
| 253 | |
| 254 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 255 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 256 | |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 257 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 258 | if (value != delimit(value, 1, 65535)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 259 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 260 | " (max subscriptions must be 1-65535"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 261 | tipc_max_subscriptions = value; |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 262 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 263 | } |
| 264 | |
| 265 | static struct sk_buff *cfg_set_max_ports(void) |
| 266 | { |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 267 | u32 value; |
| 268 | |
| 269 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 270 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 271 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 272 | if (value == tipc_max_ports) |
| 273 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 274 | if (value != delimit(value, 127, 65535)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 275 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 276 | " (max ports must be 127-65535)"); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 277 | if (tipc_mode != TIPC_NOT_RUNNING) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 278 | return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 279 | " (cannot change max ports while TIPC is active)"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 280 | tipc_max_ports = value; |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 281 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 282 | } |
| 283 | |
| 284 | static struct sk_buff *cfg_set_max_zones(void) |
| 285 | { |
| 286 | u32 value; |
| 287 | |
| 288 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 289 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 290 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 291 | if (value == tipc_max_zones) |
| 292 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 293 | if (value != delimit(value, 1, 255)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 294 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 295 | " (max zones must be 1-255)"); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 296 | if (tipc_mode == TIPC_NET_MODE) |
| 297 | return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
| 298 | " (cannot change max zones once TIPC has joined a network)"); |
| 299 | tipc_max_zones = value; |
| 300 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 301 | } |
| 302 | |
| 303 | static struct sk_buff *cfg_set_max_clusters(void) |
| 304 | { |
| 305 | u32 value; |
| 306 | |
| 307 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 308 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 309 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 310 | if (value != delimit(value, 1, 1)) |
| 311 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 312 | " (max clusters fixed at 1)"); |
| 313 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | static struct sk_buff *cfg_set_max_nodes(void) |
| 317 | { |
| 318 | u32 value; |
| 319 | |
| 320 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 321 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 322 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 323 | if (value == tipc_max_nodes) |
| 324 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 325 | if (value != delimit(value, 8, 2047)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 326 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 327 | " (max nodes must be 8-2047)"); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 328 | if (tipc_mode == TIPC_NET_MODE) |
| 329 | return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
| 330 | " (cannot change max nodes once TIPC has joined a network)"); |
| 331 | tipc_max_nodes = value; |
| 332 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 333 | } |
| 334 | |
| 335 | static struct sk_buff *cfg_set_max_slaves(void) |
| 336 | { |
| 337 | u32 value; |
| 338 | |
| 339 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 340 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 341 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 342 | if (value != 0) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 343 | return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
| 344 | " (max secondary nodes fixed at 0)"); |
| 345 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 346 | } |
| 347 | |
| 348 | static struct sk_buff *cfg_set_netid(void) |
| 349 | { |
| 350 | u32 value; |
| 351 | |
| 352 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 353 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 354 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 355 | if (value == tipc_net_id) |
| 356 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 357 | if (value != delimit(value, 1, 9999)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 358 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 359 | " (network id must be 1-9999)"); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 360 | if (tipc_mode == TIPC_NET_MODE) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 361 | return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 362 | " (cannot change network id once TIPC has joined a network)"); |
| 363 | tipc_net_id = value; |
| 364 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 365 | } |
| 366 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 367 | struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area, |
| 368 | int request_space, int reply_headroom) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 369 | { |
| 370 | struct sk_buff *rep_tlv_buf; |
| 371 | |
| 372 | spin_lock_bh(&config_lock); |
| 373 | |
| 374 | /* Save request and reply details in a well-known location */ |
| 375 | |
| 376 | req_tlv_area = request_area; |
| 377 | req_tlv_space = request_space; |
| 378 | rep_headroom = reply_headroom; |
| 379 | |
| 380 | /* Check command authorization */ |
| 381 | |
| 382 | if (likely(orig_node == tipc_own_addr)) { |
| 383 | /* command is permitted */ |
| 384 | } else if (cmd >= 0x8000) { |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 385 | rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
| 386 | " (cannot be done remotely)"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 387 | goto exit; |
| 388 | } else if (!tipc_remote_management) { |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 389 | rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NO_REMOTE); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 390 | goto exit; |
| 391 | } |
| 392 | else if (cmd >= 0x4000) { |
| 393 | u32 domain = 0; |
| 394 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 395 | if ((tipc_nametbl_translate(TIPC_ZM_SRV, 0, &domain) == 0) || |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 396 | (domain != orig_node)) { |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 397 | rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_ZONE_MSTR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 398 | goto exit; |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | /* Call appropriate processing routine */ |
| 403 | |
| 404 | switch (cmd) { |
| 405 | case TIPC_CMD_NOOP: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 406 | rep_tlv_buf = tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 407 | break; |
| 408 | case TIPC_CMD_GET_NODES: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 409 | rep_tlv_buf = tipc_node_get_nodes(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 410 | break; |
| 411 | case TIPC_CMD_GET_LINKS: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 412 | rep_tlv_buf = tipc_node_get_links(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 413 | break; |
| 414 | case TIPC_CMD_SHOW_LINK_STATS: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 415 | rep_tlv_buf = tipc_link_cmd_show_stats(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 416 | break; |
| 417 | case TIPC_CMD_RESET_LINK_STATS: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 418 | rep_tlv_buf = tipc_link_cmd_reset_stats(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 419 | break; |
| 420 | case TIPC_CMD_SHOW_NAME_TABLE: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 421 | rep_tlv_buf = tipc_nametbl_get(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 422 | break; |
| 423 | case TIPC_CMD_GET_BEARER_NAMES: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 424 | rep_tlv_buf = tipc_bearer_get_names(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 425 | break; |
| 426 | case TIPC_CMD_GET_MEDIA_NAMES: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 427 | rep_tlv_buf = tipc_media_get_names(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 428 | break; |
| 429 | case TIPC_CMD_SHOW_PORTS: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 430 | rep_tlv_buf = tipc_port_get_ports(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 431 | break; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 432 | case TIPC_CMD_SET_LOG_SIZE: |
Allan Stephens | 025adbe | 2008-05-05 01:20:04 -0700 | [diff] [blame] | 433 | rep_tlv_buf = tipc_log_resize_cmd(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 434 | break; |
| 435 | case TIPC_CMD_DUMP_LOG: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 436 | rep_tlv_buf = tipc_log_dump(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 437 | break; |
Allan Stephens | 107e7be | 2010-05-11 14:30:08 +0000 | [diff] [blame] | 438 | case TIPC_CMD_SHOW_STATS: |
| 439 | rep_tlv_buf = tipc_show_stats(); |
| 440 | break; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 441 | case TIPC_CMD_SET_LINK_TOL: |
| 442 | case TIPC_CMD_SET_LINK_PRI: |
| 443 | case TIPC_CMD_SET_LINK_WINDOW: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 444 | rep_tlv_buf = tipc_link_cmd_config(req_tlv_area, req_tlv_space, cmd); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 445 | break; |
| 446 | case TIPC_CMD_ENABLE_BEARER: |
| 447 | rep_tlv_buf = cfg_enable_bearer(); |
| 448 | break; |
| 449 | case TIPC_CMD_DISABLE_BEARER: |
| 450 | rep_tlv_buf = cfg_disable_bearer(); |
| 451 | break; |
| 452 | case TIPC_CMD_SET_NODE_ADDR: |
| 453 | rep_tlv_buf = cfg_set_own_addr(); |
| 454 | break; |
| 455 | case TIPC_CMD_SET_REMOTE_MNG: |
| 456 | rep_tlv_buf = cfg_set_remote_mng(); |
| 457 | break; |
| 458 | case TIPC_CMD_SET_MAX_PORTS: |
| 459 | rep_tlv_buf = cfg_set_max_ports(); |
| 460 | break; |
| 461 | case TIPC_CMD_SET_MAX_PUBL: |
| 462 | rep_tlv_buf = cfg_set_max_publications(); |
| 463 | break; |
| 464 | case TIPC_CMD_SET_MAX_SUBSCR: |
| 465 | rep_tlv_buf = cfg_set_max_subscriptions(); |
| 466 | break; |
| 467 | case TIPC_CMD_SET_MAX_ZONES: |
| 468 | rep_tlv_buf = cfg_set_max_zones(); |
| 469 | break; |
| 470 | case TIPC_CMD_SET_MAX_CLUSTERS: |
| 471 | rep_tlv_buf = cfg_set_max_clusters(); |
| 472 | break; |
| 473 | case TIPC_CMD_SET_MAX_NODES: |
| 474 | rep_tlv_buf = cfg_set_max_nodes(); |
| 475 | break; |
| 476 | case TIPC_CMD_SET_MAX_SLAVES: |
| 477 | rep_tlv_buf = cfg_set_max_slaves(); |
| 478 | break; |
| 479 | case TIPC_CMD_SET_NETID: |
| 480 | rep_tlv_buf = cfg_set_netid(); |
| 481 | break; |
| 482 | case TIPC_CMD_GET_REMOTE_MNG: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 483 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_remote_management); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 484 | break; |
| 485 | case TIPC_CMD_GET_MAX_PORTS: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 486 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_ports); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 487 | break; |
| 488 | case TIPC_CMD_GET_MAX_PUBL: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 489 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_publications); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 490 | break; |
| 491 | case TIPC_CMD_GET_MAX_SUBSCR: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 492 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_subscriptions); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 493 | break; |
| 494 | case TIPC_CMD_GET_MAX_ZONES: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 495 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_zones); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 496 | break; |
| 497 | case TIPC_CMD_GET_MAX_CLUSTERS: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 498 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_clusters); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 499 | break; |
| 500 | case TIPC_CMD_GET_MAX_NODES: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 501 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_nodes); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 502 | break; |
| 503 | case TIPC_CMD_GET_MAX_SLAVES: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 504 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_slaves); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 505 | break; |
| 506 | case TIPC_CMD_GET_NETID: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 507 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_net_id); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 508 | break; |
Allan Stephens | 59f0c45 | 2008-05-21 14:52:30 -0700 | [diff] [blame] | 509 | case TIPC_CMD_NOT_NET_ADMIN: |
| 510 | rep_tlv_buf = |
| 511 | tipc_cfg_reply_error_string(TIPC_CFG_NOT_NET_ADMIN); |
| 512 | break; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 513 | default: |
Allan Stephens | 53cfd1e | 2006-10-16 22:00:56 -0700 | [diff] [blame] | 514 | rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
| 515 | " (unknown command)"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 516 | break; |
| 517 | } |
| 518 | |
| 519 | /* Return reply buffer */ |
| 520 | exit: |
| 521 | spin_unlock_bh(&config_lock); |
| 522 | return rep_tlv_buf; |
| 523 | } |
| 524 | |
| 525 | static void cfg_named_msg_event(void *userdata, |
| 526 | u32 port_ref, |
| 527 | struct sk_buff **buf, |
| 528 | const unchar *msg, |
| 529 | u32 size, |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 530 | u32 importance, |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 531 | struct tipc_portid const *orig, |
| 532 | struct tipc_name_seq const *dest) |
| 533 | { |
| 534 | struct tipc_cfg_msg_hdr *req_hdr; |
| 535 | struct tipc_cfg_msg_hdr *rep_hdr; |
| 536 | struct sk_buff *rep_buf; |
| 537 | |
| 538 | /* Validate configuration message header (ignore invalid message) */ |
| 539 | |
| 540 | req_hdr = (struct tipc_cfg_msg_hdr *)msg; |
| 541 | if ((size < sizeof(*req_hdr)) || |
| 542 | (size != TCM_ALIGN(ntohl(req_hdr->tcm_len))) || |
| 543 | (ntohs(req_hdr->tcm_flags) != TCM_F_REQUEST)) { |
Allan Stephens | a10bd92 | 2006-06-25 23:52:17 -0700 | [diff] [blame] | 544 | warn("Invalid configuration message discarded\n"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 545 | return; |
| 546 | } |
| 547 | |
| 548 | /* Generate reply for request (if can't, return request) */ |
| 549 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 550 | rep_buf = tipc_cfg_do_cmd(orig->node, |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 551 | ntohs(req_hdr->tcm_type), |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 552 | msg + sizeof(*req_hdr), |
| 553 | size - sizeof(*req_hdr), |
| 554 | BUF_HEADROOM + MAX_H_SIZE + sizeof(*rep_hdr)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 555 | if (rep_buf) { |
| 556 | skb_push(rep_buf, sizeof(*rep_hdr)); |
| 557 | rep_hdr = (struct tipc_cfg_msg_hdr *)rep_buf->data; |
| 558 | memcpy(rep_hdr, req_hdr, sizeof(*rep_hdr)); |
| 559 | rep_hdr->tcm_len = htonl(rep_buf->len); |
| 560 | rep_hdr->tcm_flags &= htons(~TCM_F_REQUEST); |
| 561 | } else { |
| 562 | rep_buf = *buf; |
| 563 | *buf = NULL; |
| 564 | } |
| 565 | |
| 566 | /* NEED TO ADD CODE TO HANDLE FAILED SEND (SUCH AS CONGESTION) */ |
| 567 | tipc_send_buf2port(port_ref, orig, rep_buf, rep_buf->len); |
| 568 | } |
| 569 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 570 | int tipc_cfg_init(void) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 571 | { |
| 572 | struct tipc_name_seq seq; |
| 573 | int res; |
| 574 | |
Sam Ravnborg | 1fc54d8 | 2006-03-20 22:36:47 -0800 | [diff] [blame] | 575 | res = tipc_attach(&mng.user_ref, NULL, NULL); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 576 | if (res) |
| 577 | goto failed; |
| 578 | |
Sam Ravnborg | 1fc54d8 | 2006-03-20 22:36:47 -0800 | [diff] [blame] | 579 | res = tipc_createport(mng.user_ref, NULL, TIPC_CRITICAL_IMPORTANCE, |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 580 | NULL, NULL, NULL, |
| 581 | NULL, cfg_named_msg_event, NULL, |
| 582 | NULL, &mng.port_ref); |
| 583 | if (res) |
| 584 | goto failed; |
| 585 | |
| 586 | seq.type = TIPC_CFG_SRV; |
| 587 | seq.lower = seq.upper = tipc_own_addr; |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 588 | res = tipc_nametbl_publish_rsv(mng.port_ref, TIPC_ZONE_SCOPE, &seq); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 589 | if (res) |
| 590 | goto failed; |
| 591 | |
| 592 | return 0; |
| 593 | |
| 594 | failed: |
| 595 | err("Unable to create configuration service\n"); |
| 596 | tipc_detach(mng.user_ref); |
| 597 | mng.user_ref = 0; |
| 598 | return res; |
| 599 | } |
| 600 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 601 | void tipc_cfg_stop(void) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 602 | { |
| 603 | if (mng.user_ref) { |
| 604 | tipc_detach(mng.user_ref); |
| 605 | mng.user_ref = 0; |
| 606 | } |
| 607 | } |