Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Wi-Fi Direct - P2P module |
| 3 | * Copyright (c) 2009-2010, Atheros Communications |
| 4 | * |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 5 | * This software may be distributed under the terms of the BSD license. |
| 6 | * See README for more details. |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | #include "includes.h" |
| 10 | |
| 11 | #include "common.h" |
| 12 | #include "eloop.h" |
| 13 | #include "common/ieee802_11_defs.h" |
| 14 | #include "common/ieee802_11_common.h" |
| 15 | #include "wps/wps_i.h" |
| 16 | #include "p2p_i.h" |
| 17 | #include "p2p.h" |
| 18 | |
| 19 | |
| 20 | static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx); |
| 21 | static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev); |
| 22 | static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da, |
| 23 | const u8 *sa, const u8 *data, size_t len, |
| 24 | int rx_freq); |
| 25 | static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da, |
| 26 | const u8 *sa, const u8 *data, |
| 27 | size_t len); |
| 28 | static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx); |
| 29 | static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx); |
| 30 | |
| 31 | |
| 32 | /* |
| 33 | * p2p_scan recovery timeout |
| 34 | * |
| 35 | * Many drivers are using 30 second timeout on scan results. Allow a bit larger |
| 36 | * timeout for this to avoid hitting P2P timeout unnecessarily. |
| 37 | */ |
| 38 | #define P2P_SCAN_TIMEOUT 35 |
| 39 | |
| 40 | /** |
| 41 | * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer |
| 42 | * entries will be removed |
| 43 | */ |
| 44 | #define P2P_PEER_EXPIRATION_AGE 300 |
| 45 | |
| 46 | #define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2) |
| 47 | |
| 48 | static void p2p_expire_peers(struct p2p_data *p2p) |
| 49 | { |
| 50 | struct p2p_device *dev, *n; |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 51 | struct os_reltime now; |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 52 | size_t i; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 53 | |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 54 | os_get_reltime(&now); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 55 | dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) { |
| 56 | if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec) |
| 57 | continue; |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 58 | |
Dmitry Shmidt | 9e3f8ee | 2014-01-17 10:52:01 -0800 | [diff] [blame^] | 59 | if (dev == p2p->go_neg_peer) { |
| 60 | /* |
| 61 | * GO Negotiation is in progress with the peer, so |
| 62 | * don't expire the peer entry until GO Negotiation |
| 63 | * fails or times out. |
| 64 | */ |
| 65 | continue; |
| 66 | } |
| 67 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 68 | if (p2p->cfg->go_connected && |
| 69 | p2p->cfg->go_connected(p2p->cfg->cb_ctx, |
| 70 | dev->info.p2p_device_addr)) { |
| 71 | /* |
| 72 | * We are connected as a client to a group in which the |
| 73 | * peer is the GO, so do not expire the peer entry. |
| 74 | */ |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 75 | os_get_reltime(&dev->last_seen); |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 76 | continue; |
| 77 | } |
| 78 | |
| 79 | for (i = 0; i < p2p->num_groups; i++) { |
| 80 | if (p2p_group_is_client_connected( |
| 81 | p2p->groups[i], dev->info.p2p_device_addr)) |
| 82 | break; |
| 83 | } |
| 84 | if (i < p2p->num_groups) { |
| 85 | /* |
| 86 | * The peer is connected as a client in a group where |
| 87 | * we are the GO, so do not expire the peer entry. |
| 88 | */ |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 89 | os_get_reltime(&dev->last_seen); |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 90 | continue; |
| 91 | } |
| 92 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 93 | p2p_dbg(p2p, "Expiring old peer entry " MACSTR, |
| 94 | MAC2STR(dev->info.p2p_device_addr)); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 95 | dl_list_del(&dev->list); |
| 96 | p2p_device_free(p2p, dev); |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | |
| 101 | static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx) |
| 102 | { |
| 103 | struct p2p_data *p2p = eloop_ctx; |
| 104 | p2p_expire_peers(p2p); |
| 105 | eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0, |
| 106 | p2p_expiration_timeout, p2p, NULL); |
| 107 | } |
| 108 | |
| 109 | |
| 110 | static const char * p2p_state_txt(int state) |
| 111 | { |
| 112 | switch (state) { |
| 113 | case P2P_IDLE: |
| 114 | return "IDLE"; |
| 115 | case P2P_SEARCH: |
| 116 | return "SEARCH"; |
| 117 | case P2P_CONNECT: |
| 118 | return "CONNECT"; |
| 119 | case P2P_CONNECT_LISTEN: |
| 120 | return "CONNECT_LISTEN"; |
| 121 | case P2P_GO_NEG: |
| 122 | return "GO_NEG"; |
| 123 | case P2P_LISTEN_ONLY: |
| 124 | return "LISTEN_ONLY"; |
| 125 | case P2P_WAIT_PEER_CONNECT: |
| 126 | return "WAIT_PEER_CONNECT"; |
| 127 | case P2P_WAIT_PEER_IDLE: |
| 128 | return "WAIT_PEER_IDLE"; |
| 129 | case P2P_SD_DURING_FIND: |
| 130 | return "SD_DURING_FIND"; |
| 131 | case P2P_PROVISIONING: |
| 132 | return "PROVISIONING"; |
| 133 | case P2P_PD_DURING_FIND: |
| 134 | return "PD_DURING_FIND"; |
| 135 | case P2P_INVITE: |
| 136 | return "INVITE"; |
| 137 | case P2P_INVITE_LISTEN: |
| 138 | return "INVITE_LISTEN"; |
| 139 | default: |
| 140 | return "?"; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | |
Dmitry Shmidt | b7b4d0e | 2013-08-26 12:09:05 -0700 | [diff] [blame] | 145 | const char * p2p_get_state_txt(struct p2p_data *p2p) |
| 146 | { |
| 147 | return p2p_state_txt(p2p->state); |
| 148 | } |
| 149 | |
| 150 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 151 | u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr) |
| 152 | { |
| 153 | struct p2p_device *dev = NULL; |
| 154 | |
| 155 | if (!addr || !p2p) |
| 156 | return 0; |
| 157 | |
| 158 | dev = p2p_get_device(p2p, addr); |
| 159 | if (dev) |
| 160 | return dev->wps_prov_info; |
| 161 | else |
| 162 | return 0; |
| 163 | } |
| 164 | |
| 165 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 166 | void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr) |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 167 | { |
| 168 | struct p2p_device *dev = NULL; |
| 169 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 170 | if (!addr || !p2p) |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 171 | return; |
| 172 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 173 | dev = p2p_get_device(p2p, addr); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 174 | if (dev) |
| 175 | dev->wps_prov_info = 0; |
| 176 | } |
| 177 | |
| 178 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 179 | void p2p_set_state(struct p2p_data *p2p, int new_state) |
| 180 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 181 | p2p_dbg(p2p, "State %s -> %s", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 182 | p2p_state_txt(p2p->state), p2p_state_txt(new_state)); |
| 183 | p2p->state = new_state; |
| 184 | } |
| 185 | |
| 186 | |
| 187 | void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec) |
| 188 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 189 | p2p_dbg(p2p, "Set timeout (state=%s): %u.%06u sec", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 190 | p2p_state_txt(p2p->state), sec, usec); |
| 191 | eloop_cancel_timeout(p2p_state_timeout, p2p, NULL); |
| 192 | eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL); |
| 193 | } |
| 194 | |
| 195 | |
| 196 | void p2p_clear_timeout(struct p2p_data *p2p) |
| 197 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 198 | p2p_dbg(p2p, "Clear timeout (state=%s)", p2p_state_txt(p2p->state)); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 199 | eloop_cancel_timeout(p2p_state_timeout, p2p, NULL); |
| 200 | } |
| 201 | |
| 202 | |
| 203 | void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer, |
| 204 | int status) |
| 205 | { |
| 206 | struct p2p_go_neg_results res; |
| 207 | p2p_clear_timeout(p2p); |
| 208 | p2p_set_state(p2p, P2P_IDLE); |
Dmitry Shmidt | 8c65289 | 2013-03-01 10:14:01 -0800 | [diff] [blame] | 209 | if (p2p->go_neg_peer) { |
| 210 | p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 211 | p2p->go_neg_peer->wps_method = WPS_NOT_READY; |
Dmitry Shmidt | 8c65289 | 2013-03-01 10:14:01 -0800 | [diff] [blame] | 212 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 213 | p2p->go_neg_peer = NULL; |
| 214 | |
| 215 | os_memset(&res, 0, sizeof(res)); |
| 216 | res.status = status; |
| 217 | if (peer) { |
| 218 | os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, |
| 219 | ETH_ALEN); |
| 220 | os_memcpy(res.peer_interface_addr, peer->intended_addr, |
| 221 | ETH_ALEN); |
| 222 | } |
| 223 | p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res); |
| 224 | } |
| 225 | |
| 226 | |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 227 | static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 228 | { |
| 229 | unsigned int r, tu; |
| 230 | int freq; |
| 231 | struct wpabuf *ies; |
| 232 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 233 | p2p_dbg(p2p, "Starting short listen state (state=%s)", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 234 | p2p_state_txt(p2p->state)); |
| 235 | |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 236 | freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 237 | if (freq < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 238 | p2p_dbg(p2p, "Unknown regulatory class/channel"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 239 | return; |
| 240 | } |
| 241 | |
| 242 | os_get_random((u8 *) &r, sizeof(r)); |
| 243 | tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) + |
| 244 | p2p->min_disc_int) * 100; |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 245 | if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu) |
| 246 | tu = p2p->max_disc_tu; |
| 247 | if (!dev_disc && tu < 100) |
| 248 | tu = 100; /* Need to wait in non-device discovery use cases */ |
| 249 | if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen) |
| 250 | tu = p2p->cfg->max_listen * 1000 / 1024; |
| 251 | |
| 252 | if (tu == 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 253 | p2p_dbg(p2p, "Skip listen state since duration was 0 TU"); |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 254 | p2p_set_timeout(p2p, 0, 0); |
| 255 | return; |
| 256 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 257 | |
| 258 | p2p->pending_listen_freq = freq; |
| 259 | p2p->pending_listen_sec = 0; |
| 260 | p2p->pending_listen_usec = 1024 * tu; |
| 261 | |
| 262 | ies = p2p_build_probe_resp_ies(p2p); |
| 263 | if (ies == NULL) |
| 264 | return; |
| 265 | |
| 266 | if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000, |
| 267 | ies) < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 268 | p2p_dbg(p2p, "Failed to start listen mode"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 269 | p2p->pending_listen_freq = 0; |
| 270 | } |
| 271 | wpabuf_free(ies); |
| 272 | } |
| 273 | |
| 274 | |
| 275 | int p2p_listen(struct p2p_data *p2p, unsigned int timeout) |
| 276 | { |
| 277 | int freq; |
| 278 | struct wpabuf *ies; |
| 279 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 280 | p2p_dbg(p2p, "Going to listen(only) state"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 281 | |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 282 | freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 283 | if (freq < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 284 | p2p_dbg(p2p, "Unknown regulatory class/channel"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 285 | return -1; |
| 286 | } |
| 287 | |
| 288 | p2p->pending_listen_freq = freq; |
| 289 | p2p->pending_listen_sec = timeout / 1000; |
| 290 | p2p->pending_listen_usec = (timeout % 1000) * 1000; |
| 291 | |
| 292 | if (p2p->p2p_scan_running) { |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 293 | if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 294 | p2p_dbg(p2p, "p2p_scan running - connect is already pending - skip listen"); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 295 | return 0; |
| 296 | } |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 297 | p2p_dbg(p2p, "p2p_scan running - delay start of listen state"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 298 | p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN; |
| 299 | return 0; |
| 300 | } |
| 301 | |
| 302 | ies = p2p_build_probe_resp_ies(p2p); |
| 303 | if (ies == NULL) |
| 304 | return -1; |
| 305 | |
| 306 | if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 307 | p2p_dbg(p2p, "Failed to start listen mode"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 308 | p2p->pending_listen_freq = 0; |
| 309 | wpabuf_free(ies); |
| 310 | return -1; |
| 311 | } |
| 312 | wpabuf_free(ies); |
| 313 | |
| 314 | p2p_set_state(p2p, P2P_LISTEN_ONLY); |
| 315 | |
| 316 | return 0; |
| 317 | } |
| 318 | |
| 319 | |
| 320 | static void p2p_device_clear_reported(struct p2p_data *p2p) |
| 321 | { |
| 322 | struct p2p_device *dev; |
| 323 | dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) |
| 324 | dev->flags &= ~P2P_DEV_REPORTED; |
| 325 | } |
| 326 | |
| 327 | |
| 328 | /** |
| 329 | * p2p_get_device - Fetch a peer entry |
| 330 | * @p2p: P2P module context from p2p_init() |
| 331 | * @addr: P2P Device Address of the peer |
| 332 | * Returns: Pointer to the device entry or %NULL if not found |
| 333 | */ |
| 334 | struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr) |
| 335 | { |
| 336 | struct p2p_device *dev; |
| 337 | dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) { |
| 338 | if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0) |
| 339 | return dev; |
| 340 | } |
| 341 | return NULL; |
| 342 | } |
| 343 | |
| 344 | |
| 345 | /** |
| 346 | * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address |
| 347 | * @p2p: P2P module context from p2p_init() |
| 348 | * @addr: P2P Interface Address of the peer |
| 349 | * Returns: Pointer to the device entry or %NULL if not found |
| 350 | */ |
| 351 | struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p, |
| 352 | const u8 *addr) |
| 353 | { |
| 354 | struct p2p_device *dev; |
| 355 | dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) { |
| 356 | if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0) |
| 357 | return dev; |
| 358 | } |
| 359 | return NULL; |
| 360 | } |
| 361 | |
| 362 | |
| 363 | /** |
| 364 | * p2p_create_device - Create a peer entry |
| 365 | * @p2p: P2P module context from p2p_init() |
| 366 | * @addr: P2P Device Address of the peer |
| 367 | * Returns: Pointer to the device entry or %NULL on failure |
| 368 | * |
| 369 | * If there is already an entry for the peer, it will be returned instead of |
| 370 | * creating a new one. |
| 371 | */ |
| 372 | static struct p2p_device * p2p_create_device(struct p2p_data *p2p, |
| 373 | const u8 *addr) |
| 374 | { |
| 375 | struct p2p_device *dev, *oldest = NULL; |
| 376 | size_t count = 0; |
| 377 | |
| 378 | dev = p2p_get_device(p2p, addr); |
| 379 | if (dev) |
| 380 | return dev; |
| 381 | |
| 382 | dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) { |
| 383 | count++; |
| 384 | if (oldest == NULL || |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 385 | os_reltime_before(&dev->last_seen, &oldest->last_seen)) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 386 | oldest = dev; |
| 387 | } |
| 388 | if (count + 1 > p2p->cfg->max_peers && oldest) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 389 | p2p_dbg(p2p, "Remove oldest peer entry to make room for a new peer"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 390 | dl_list_del(&oldest->list); |
| 391 | p2p_device_free(p2p, oldest); |
| 392 | } |
| 393 | |
| 394 | dev = os_zalloc(sizeof(*dev)); |
| 395 | if (dev == NULL) |
| 396 | return NULL; |
| 397 | dl_list_add(&p2p->devices, &dev->list); |
| 398 | os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN); |
| 399 | |
| 400 | return dev; |
| 401 | } |
| 402 | |
| 403 | |
| 404 | static void p2p_copy_client_info(struct p2p_device *dev, |
| 405 | struct p2p_client_info *cli) |
| 406 | { |
| 407 | os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len); |
| 408 | dev->info.device_name[cli->dev_name_len] = '\0'; |
| 409 | dev->info.dev_capab = cli->dev_capab; |
| 410 | dev->info.config_methods = cli->config_methods; |
| 411 | os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8); |
| 412 | dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types; |
| 413 | os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types, |
| 414 | dev->info.wps_sec_dev_type_list_len); |
| 415 | } |
| 416 | |
| 417 | |
| 418 | static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr, |
| 419 | const u8 *go_interface_addr, int freq, |
| 420 | const u8 *gi, size_t gi_len) |
| 421 | { |
| 422 | struct p2p_group_info info; |
| 423 | size_t c; |
| 424 | struct p2p_device *dev; |
| 425 | |
| 426 | if (gi == NULL) |
| 427 | return 0; |
| 428 | |
| 429 | if (p2p_group_info_parse(gi, gi_len, &info) < 0) |
| 430 | return -1; |
| 431 | |
| 432 | /* |
| 433 | * Clear old data for this group; if the devices are still in the |
| 434 | * group, the information will be restored in the loop following this. |
| 435 | */ |
| 436 | dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 437 | if (os_memcmp(dev->member_in_go_iface, go_interface_addr, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 438 | ETH_ALEN) == 0) { |
| 439 | os_memset(dev->member_in_go_iface, 0, ETH_ALEN); |
| 440 | os_memset(dev->member_in_go_dev, 0, ETH_ALEN); |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | for (c = 0; c < info.num_clients; c++) { |
| 445 | struct p2p_client_info *cli = &info.client[c]; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 446 | if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr, |
| 447 | ETH_ALEN) == 0) |
| 448 | continue; /* ignore our own entry */ |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 449 | dev = p2p_get_device(p2p, cli->p2p_device_addr); |
| 450 | if (dev) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 451 | if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 452 | P2P_DEV_PROBE_REQ_ONLY)) { |
| 453 | /* |
| 454 | * Update information since we have not |
| 455 | * received this directly from the client. |
| 456 | */ |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 457 | p2p_copy_client_info(dev, cli); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 458 | } else { |
| 459 | /* |
| 460 | * Need to update P2P Client Discoverability |
| 461 | * flag since it is valid only in P2P Group |
| 462 | * Info attribute. |
| 463 | */ |
| 464 | dev->info.dev_capab &= |
| 465 | ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY; |
| 466 | dev->info.dev_capab |= |
| 467 | cli->dev_capab & |
| 468 | P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY; |
| 469 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 470 | if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) { |
| 471 | dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY; |
| 472 | } |
| 473 | } else { |
| 474 | dev = p2p_create_device(p2p, cli->p2p_device_addr); |
| 475 | if (dev == NULL) |
| 476 | continue; |
| 477 | dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY; |
| 478 | p2p_copy_client_info(dev, cli); |
| 479 | dev->oper_freq = freq; |
| 480 | p2p->cfg->dev_found(p2p->cfg->cb_ctx, |
| 481 | dev->info.p2p_device_addr, |
| 482 | &dev->info, 1); |
| 483 | dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE; |
| 484 | } |
| 485 | |
| 486 | os_memcpy(dev->interface_addr, cli->p2p_interface_addr, |
| 487 | ETH_ALEN); |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 488 | os_get_reltime(&dev->last_seen); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 489 | os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN); |
| 490 | os_memcpy(dev->member_in_go_iface, go_interface_addr, |
| 491 | ETH_ALEN); |
| 492 | } |
| 493 | |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 498 | static void p2p_copy_wps_info(struct p2p_data *p2p, struct p2p_device *dev, |
| 499 | int probe_req, const struct p2p_message *msg) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 500 | { |
| 501 | os_memcpy(dev->info.device_name, msg->device_name, |
| 502 | sizeof(dev->info.device_name)); |
| 503 | |
| 504 | if (msg->manufacturer && |
| 505 | msg->manufacturer_len < sizeof(dev->info.manufacturer)) { |
| 506 | os_memset(dev->info.manufacturer, 0, |
| 507 | sizeof(dev->info.manufacturer)); |
| 508 | os_memcpy(dev->info.manufacturer, msg->manufacturer, |
| 509 | msg->manufacturer_len); |
| 510 | } |
| 511 | |
| 512 | if (msg->model_name && |
| 513 | msg->model_name_len < sizeof(dev->info.model_name)) { |
| 514 | os_memset(dev->info.model_name, 0, |
| 515 | sizeof(dev->info.model_name)); |
| 516 | os_memcpy(dev->info.model_name, msg->model_name, |
| 517 | msg->model_name_len); |
| 518 | } |
| 519 | |
| 520 | if (msg->model_number && |
| 521 | msg->model_number_len < sizeof(dev->info.model_number)) { |
| 522 | os_memset(dev->info.model_number, 0, |
| 523 | sizeof(dev->info.model_number)); |
| 524 | os_memcpy(dev->info.model_number, msg->model_number, |
| 525 | msg->model_number_len); |
| 526 | } |
| 527 | |
| 528 | if (msg->serial_number && |
| 529 | msg->serial_number_len < sizeof(dev->info.serial_number)) { |
| 530 | os_memset(dev->info.serial_number, 0, |
| 531 | sizeof(dev->info.serial_number)); |
| 532 | os_memcpy(dev->info.serial_number, msg->serial_number, |
| 533 | msg->serial_number_len); |
| 534 | } |
| 535 | |
| 536 | if (msg->pri_dev_type) |
| 537 | os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type, |
| 538 | sizeof(dev->info.pri_dev_type)); |
| 539 | else if (msg->wps_pri_dev_type) |
| 540 | os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type, |
| 541 | sizeof(dev->info.pri_dev_type)); |
| 542 | |
| 543 | if (msg->wps_sec_dev_type_list) { |
| 544 | os_memcpy(dev->info.wps_sec_dev_type_list, |
| 545 | msg->wps_sec_dev_type_list, |
| 546 | msg->wps_sec_dev_type_list_len); |
| 547 | dev->info.wps_sec_dev_type_list_len = |
| 548 | msg->wps_sec_dev_type_list_len; |
| 549 | } |
| 550 | |
| 551 | if (msg->capability) { |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 552 | /* |
| 553 | * P2P Client Discoverability bit is reserved in all frames |
| 554 | * that use this function, so do not change its value here. |
| 555 | */ |
| 556 | dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY; |
| 557 | dev->info.dev_capab |= msg->capability[0] & |
| 558 | ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 559 | dev->info.group_capab = msg->capability[1]; |
| 560 | } |
| 561 | |
| 562 | if (msg->ext_listen_timing) { |
| 563 | dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing); |
| 564 | dev->ext_listen_interval = |
| 565 | WPA_GET_LE16(msg->ext_listen_timing + 2); |
| 566 | } |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 567 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 568 | if (!probe_req) { |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 569 | u16 new_config_methods; |
| 570 | new_config_methods = msg->config_methods ? |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 571 | msg->config_methods : msg->wps_config_methods; |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 572 | if (new_config_methods && |
| 573 | dev->info.config_methods != new_config_methods) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 574 | p2p_dbg(p2p, "Update peer " MACSTR |
| 575 | " config_methods 0x%x -> 0x%x", |
| 576 | MAC2STR(dev->info.p2p_device_addr), |
| 577 | dev->info.config_methods, |
| 578 | new_config_methods); |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 579 | dev->info.config_methods = new_config_methods; |
| 580 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 581 | } |
| 582 | } |
| 583 | |
| 584 | |
| 585 | /** |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 586 | * p2p_add_device - Add peer entries based on scan results or P2P frames |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 587 | * @p2p: P2P module context from p2p_init() |
| 588 | * @addr: Source address of Beacon or Probe Response frame (may be either |
| 589 | * P2P Device Address or P2P Interface Address) |
| 590 | * @level: Signal level (signal strength of the received frame from the peer) |
| 591 | * @freq: Frequency on which the Beacon or Probe Response frame was received |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 592 | * @rx_time: Time when the result was received |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 593 | * @ies: IEs from the Beacon or Probe Response frame |
| 594 | * @ies_len: Length of ies buffer in octets |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 595 | * @scan_res: Whether this was based on scan results |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 596 | * Returns: 0 on success, -1 on failure |
| 597 | * |
| 598 | * If the scan result is for a GO, the clients in the group will also be added |
| 599 | * to the peer table. This function can also be used with some other frames |
| 600 | * like Provision Discovery Request that contains P2P Capability and P2P Device |
| 601 | * Info attributes. |
| 602 | */ |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 603 | int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq, |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 604 | struct os_reltime *rx_time, int level, const u8 *ies, |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 605 | size_t ies_len, int scan_res) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 606 | { |
| 607 | struct p2p_device *dev; |
| 608 | struct p2p_message msg; |
| 609 | const u8 *p2p_dev_addr; |
| 610 | int i; |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 611 | struct os_reltime time_now; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 612 | |
| 613 | os_memset(&msg, 0, sizeof(msg)); |
| 614 | if (p2p_parse_ies(ies, ies_len, &msg)) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 615 | p2p_dbg(p2p, "Failed to parse P2P IE for a device entry"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 616 | p2p_parse_free(&msg); |
| 617 | return -1; |
| 618 | } |
| 619 | |
| 620 | if (msg.p2p_device_addr) |
| 621 | p2p_dev_addr = msg.p2p_device_addr; |
| 622 | else if (msg.device_id) |
| 623 | p2p_dev_addr = msg.device_id; |
| 624 | else { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 625 | p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 626 | p2p_parse_free(&msg); |
| 627 | return -1; |
| 628 | } |
| 629 | |
| 630 | if (!is_zero_ether_addr(p2p->peer_filter) && |
| 631 | os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 632 | p2p_dbg(p2p, "Do not add peer filter for " MACSTR |
| 633 | " due to peer filter", MAC2STR(p2p_dev_addr)); |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 634 | p2p_parse_free(&msg); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 635 | return 0; |
| 636 | } |
| 637 | |
| 638 | dev = p2p_create_device(p2p, p2p_dev_addr); |
| 639 | if (dev == NULL) { |
| 640 | p2p_parse_free(&msg); |
| 641 | return -1; |
| 642 | } |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 643 | |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 644 | if (rx_time == NULL) { |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 645 | os_get_reltime(&time_now); |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 646 | rx_time = &time_now; |
| 647 | } |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 648 | |
| 649 | /* |
| 650 | * Update the device entry only if the new peer |
| 651 | * entry is newer than the one previously stored. |
| 652 | */ |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 653 | if (dev->last_seen.sec > 0 && |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 654 | os_reltime_before(rx_time, &dev->last_seen)) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 655 | p2p_dbg(p2p, "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u)", |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 656 | (unsigned int) rx_time->sec, |
| 657 | (unsigned int) rx_time->usec, |
| 658 | (unsigned int) dev->last_seen.sec, |
| 659 | (unsigned int) dev->last_seen.usec); |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 660 | p2p_parse_free(&msg); |
| 661 | return -1; |
| 662 | } |
| 663 | |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 664 | os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime)); |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 665 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 666 | dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY); |
| 667 | |
| 668 | if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0) |
| 669 | os_memcpy(dev->interface_addr, addr, ETH_ALEN); |
| 670 | if (msg.ssid && |
| 671 | (msg.ssid[1] != P2P_WILDCARD_SSID_LEN || |
| 672 | os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) |
| 673 | != 0)) { |
| 674 | os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]); |
| 675 | dev->oper_ssid_len = msg.ssid[1]; |
| 676 | } |
| 677 | |
| 678 | if (freq >= 2412 && freq <= 2484 && msg.ds_params && |
| 679 | *msg.ds_params >= 1 && *msg.ds_params <= 14) { |
| 680 | int ds_freq; |
| 681 | if (*msg.ds_params == 14) |
| 682 | ds_freq = 2484; |
| 683 | else |
| 684 | ds_freq = 2407 + *msg.ds_params * 5; |
| 685 | if (freq != ds_freq) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 686 | p2p_dbg(p2p, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 687 | freq, ds_freq); |
| 688 | freq = ds_freq; |
| 689 | } |
| 690 | } |
| 691 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 692 | if (dev->listen_freq && dev->listen_freq != freq && scan_res) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 693 | p2p_dbg(p2p, "Update Listen frequency based on scan results (" |
| 694 | MACSTR " %d -> %d MHz (DS param %d)", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 695 | MAC2STR(dev->info.p2p_device_addr), dev->listen_freq, |
| 696 | freq, msg.ds_params ? *msg.ds_params : -1); |
| 697 | } |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 698 | if (scan_res) { |
| 699 | dev->listen_freq = freq; |
| 700 | if (msg.group_info) |
| 701 | dev->oper_freq = freq; |
| 702 | } |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 703 | dev->info.level = level; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 704 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 705 | p2p_copy_wps_info(p2p, dev, 0, &msg); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 706 | |
| 707 | for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) { |
| 708 | wpabuf_free(dev->info.wps_vendor_ext[i]); |
| 709 | dev->info.wps_vendor_ext[i] = NULL; |
| 710 | } |
| 711 | |
| 712 | for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) { |
| 713 | if (msg.wps_vendor_ext[i] == NULL) |
| 714 | break; |
| 715 | dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy( |
| 716 | msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]); |
| 717 | if (dev->info.wps_vendor_ext[i] == NULL) |
| 718 | break; |
| 719 | } |
| 720 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 721 | if (msg.wfd_subelems) { |
| 722 | wpabuf_free(dev->info.wfd_subelems); |
| 723 | dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems); |
| 724 | } |
| 725 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 726 | if (scan_res) { |
| 727 | p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq, |
| 728 | msg.group_info, msg.group_info_len); |
| 729 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 730 | |
| 731 | p2p_parse_free(&msg); |
| 732 | |
| 733 | if (p2p_pending_sd_req(p2p, dev)) |
| 734 | dev->flags |= P2P_DEV_SD_SCHEDULE; |
| 735 | |
| 736 | if (dev->flags & P2P_DEV_REPORTED) |
| 737 | return 0; |
| 738 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 739 | p2p_dbg(p2p, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)", |
| 740 | freq, (unsigned int) rx_time->sec, |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 741 | (unsigned int) rx_time->usec); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 742 | if (dev->flags & P2P_DEV_USER_REJECTED) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 743 | p2p_dbg(p2p, "Do not report rejected device"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 744 | return 0; |
| 745 | } |
| 746 | |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 747 | if (dev->info.config_methods == 0 && |
| 748 | (freq == 2412 || freq == 2437 || freq == 2462)) { |
| 749 | /* |
| 750 | * If we have only seen a Beacon frame from a GO, we do not yet |
| 751 | * know what WPS config methods it supports. Since some |
| 752 | * applications use config_methods value from P2P-DEVICE-FOUND |
| 753 | * events, postpone reporting this peer until we've fully |
| 754 | * discovered its capabilities. |
| 755 | * |
| 756 | * At least for now, do this only if the peer was detected on |
| 757 | * one of the social channels since that peer can be easily be |
| 758 | * found again and there are no limitations of having to use |
| 759 | * passive scan on this channels, so this can be done through |
| 760 | * Probe Response frame that includes the config_methods |
| 761 | * information. |
| 762 | */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 763 | p2p_dbg(p2p, "Do not report peer " MACSTR |
| 764 | " with unknown config methods", MAC2STR(addr)); |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 765 | return 0; |
| 766 | } |
| 767 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 768 | p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info, |
| 769 | !(dev->flags & P2P_DEV_REPORTED_ONCE)); |
| 770 | dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE; |
| 771 | |
| 772 | return 0; |
| 773 | } |
| 774 | |
| 775 | |
| 776 | static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev) |
| 777 | { |
| 778 | int i; |
| 779 | |
Dmitry Shmidt | 497c1d5 | 2011-07-21 15:19:46 -0700 | [diff] [blame] | 780 | if (p2p->go_neg_peer == dev) { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 781 | /* |
| 782 | * If GO Negotiation is in progress, report that it has failed. |
| 783 | */ |
Dmitry Shmidt | 497c1d5 | 2011-07-21 15:19:46 -0700 | [diff] [blame] | 784 | p2p_go_neg_failed(p2p, dev, -1); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 785 | p2p->go_neg_peer = NULL; |
Dmitry Shmidt | 497c1d5 | 2011-07-21 15:19:46 -0700 | [diff] [blame] | 786 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 787 | if (p2p->invite_peer == dev) |
| 788 | p2p->invite_peer = NULL; |
| 789 | if (p2p->sd_peer == dev) |
| 790 | p2p->sd_peer = NULL; |
| 791 | if (p2p->pending_client_disc_go == dev) |
| 792 | p2p->pending_client_disc_go = NULL; |
| 793 | |
Dmitry Shmidt | c55524a | 2011-07-07 11:18:38 -0700 | [diff] [blame] | 794 | /* dev_lost() device, but only if it was previously dev_found() */ |
| 795 | if (dev->flags & P2P_DEV_REPORTED_ONCE) |
| 796 | p2p->cfg->dev_lost(p2p->cfg->cb_ctx, |
| 797 | dev->info.p2p_device_addr); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 798 | |
| 799 | for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) { |
| 800 | wpabuf_free(dev->info.wps_vendor_ext[i]); |
| 801 | dev->info.wps_vendor_ext[i] = NULL; |
| 802 | } |
| 803 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 804 | wpabuf_free(dev->info.wfd_subelems); |
| 805 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 806 | os_free(dev); |
| 807 | } |
| 808 | |
| 809 | |
| 810 | static int p2p_get_next_prog_freq(struct p2p_data *p2p) |
| 811 | { |
| 812 | struct p2p_channels *c; |
| 813 | struct p2p_reg_class *cla; |
| 814 | size_t cl, ch; |
| 815 | int found = 0; |
| 816 | u8 reg_class; |
| 817 | u8 channel; |
| 818 | int freq; |
| 819 | |
| 820 | c = &p2p->cfg->channels; |
| 821 | for (cl = 0; cl < c->reg_classes; cl++) { |
| 822 | cla = &c->reg_class[cl]; |
| 823 | if (cla->reg_class != p2p->last_prog_scan_class) |
| 824 | continue; |
| 825 | for (ch = 0; ch < cla->channels; ch++) { |
| 826 | if (cla->channel[ch] == p2p->last_prog_scan_chan) { |
| 827 | found = 1; |
| 828 | break; |
| 829 | } |
| 830 | } |
| 831 | if (found) |
| 832 | break; |
| 833 | } |
| 834 | |
| 835 | if (!found) { |
| 836 | /* Start from beginning */ |
| 837 | reg_class = c->reg_class[0].reg_class; |
| 838 | channel = c->reg_class[0].channel[0]; |
| 839 | } else { |
| 840 | /* Pick the next channel */ |
| 841 | ch++; |
| 842 | if (ch == cla->channels) { |
| 843 | cl++; |
| 844 | if (cl == c->reg_classes) |
| 845 | cl = 0; |
| 846 | ch = 0; |
| 847 | } |
| 848 | reg_class = c->reg_class[cl].reg_class; |
| 849 | channel = c->reg_class[cl].channel[ch]; |
| 850 | } |
| 851 | |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 852 | freq = p2p_channel_to_freq(reg_class, channel); |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 853 | p2p_dbg(p2p, "Next progressive search channel: reg_class %u channel %u -> %d MHz", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 854 | reg_class, channel, freq); |
| 855 | p2p->last_prog_scan_class = reg_class; |
| 856 | p2p->last_prog_scan_chan = channel; |
| 857 | |
| 858 | if (freq == 2412 || freq == 2437 || freq == 2462) |
| 859 | return 0; /* No need to add social channels */ |
| 860 | return freq; |
| 861 | } |
| 862 | |
| 863 | |
| 864 | static void p2p_search(struct p2p_data *p2p) |
| 865 | { |
| 866 | int freq = 0; |
| 867 | enum p2p_scan_type type; |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 868 | u16 pw_id = DEV_PW_DEFAULT; |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 869 | int res; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 870 | |
| 871 | if (p2p->drv_in_listen) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 872 | p2p_dbg(p2p, "Driver is still in Listen state - wait for it to end before continuing"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 873 | return; |
| 874 | } |
| 875 | p2p->cfg->stop_listen(p2p->cfg->cb_ctx); |
| 876 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 877 | if (p2p->find_type == P2P_FIND_PROGRESSIVE && |
| 878 | (freq = p2p_get_next_prog_freq(p2p)) > 0) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 879 | type = P2P_SCAN_SOCIAL_PLUS_ONE; |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 880 | p2p_dbg(p2p, "Starting search (+ freq %u)", freq); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 881 | } else { |
| 882 | type = P2P_SCAN_SOCIAL; |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 883 | p2p_dbg(p2p, "Starting search"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 884 | } |
| 885 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 886 | res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq, |
| 887 | p2p->num_req_dev_types, p2p->req_dev_types, |
| 888 | p2p->find_dev_id, pw_id); |
| 889 | if (res < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 890 | p2p_dbg(p2p, "Scan request failed"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 891 | p2p_continue_find(p2p); |
| 892 | } else { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 893 | p2p_dbg(p2p, "Running p2p_scan"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 894 | p2p->p2p_scan_running = 1; |
| 895 | eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL); |
| 896 | eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout, |
| 897 | p2p, NULL); |
| 898 | } |
| 899 | } |
| 900 | |
| 901 | |
| 902 | static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx) |
| 903 | { |
| 904 | struct p2p_data *p2p = eloop_ctx; |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 905 | p2p_dbg(p2p, "Find timeout -> stop"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 906 | p2p_stop_find(p2p); |
| 907 | } |
| 908 | |
| 909 | |
| 910 | static int p2p_run_after_scan(struct p2p_data *p2p) |
| 911 | { |
| 912 | struct p2p_device *dev; |
| 913 | enum p2p_after_scan op; |
| 914 | |
| 915 | if (p2p->after_scan_tx) { |
Dmitry Shmidt | 8da800a | 2013-04-24 12:57:01 -0700 | [diff] [blame] | 916 | p2p->after_scan_tx_in_progress = 1; |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 917 | p2p_dbg(p2p, "Send pending Action frame at p2p_scan completion"); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 918 | p2p->cfg->send_action(p2p->cfg->cb_ctx, |
| 919 | p2p->after_scan_tx->freq, |
| 920 | p2p->after_scan_tx->dst, |
| 921 | p2p->after_scan_tx->src, |
| 922 | p2p->after_scan_tx->bssid, |
| 923 | (u8 *) (p2p->after_scan_tx + 1), |
| 924 | p2p->after_scan_tx->len, |
| 925 | p2p->after_scan_tx->wait_time); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 926 | os_free(p2p->after_scan_tx); |
| 927 | p2p->after_scan_tx = NULL; |
| 928 | return 1; |
| 929 | } |
| 930 | |
| 931 | op = p2p->start_after_scan; |
| 932 | p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING; |
| 933 | switch (op) { |
| 934 | case P2P_AFTER_SCAN_NOTHING: |
| 935 | break; |
| 936 | case P2P_AFTER_SCAN_LISTEN: |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 937 | p2p_dbg(p2p, "Start previously requested Listen state"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 938 | p2p_listen(p2p, p2p->pending_listen_sec * 1000 + |
| 939 | p2p->pending_listen_usec / 1000); |
| 940 | return 1; |
| 941 | case P2P_AFTER_SCAN_CONNECT: |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 942 | p2p_dbg(p2p, "Start previously requested connect with " MACSTR, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 943 | MAC2STR(p2p->after_scan_peer)); |
| 944 | dev = p2p_get_device(p2p, p2p->after_scan_peer); |
| 945 | if (dev == NULL) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 946 | p2p_dbg(p2p, "Peer not known anymore"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 947 | break; |
| 948 | } |
| 949 | p2p_connect_send(p2p, dev); |
| 950 | return 1; |
| 951 | } |
| 952 | |
| 953 | return 0; |
| 954 | } |
| 955 | |
| 956 | |
| 957 | static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx) |
| 958 | { |
| 959 | struct p2p_data *p2p = eloop_ctx; |
| 960 | int running; |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 961 | p2p_dbg(p2p, "p2p_scan timeout (running=%d)", p2p->p2p_scan_running); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 962 | running = p2p->p2p_scan_running; |
| 963 | /* Make sure we recover from missed scan results callback */ |
| 964 | p2p->p2p_scan_running = 0; |
| 965 | |
| 966 | if (running) |
| 967 | p2p_run_after_scan(p2p); |
| 968 | } |
| 969 | |
| 970 | |
| 971 | static void p2p_free_req_dev_types(struct p2p_data *p2p) |
| 972 | { |
| 973 | p2p->num_req_dev_types = 0; |
| 974 | os_free(p2p->req_dev_types); |
| 975 | p2p->req_dev_types = NULL; |
| 976 | } |
| 977 | |
| 978 | |
| 979 | int p2p_find(struct p2p_data *p2p, unsigned int timeout, |
| 980 | enum p2p_discovery_type type, |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 981 | unsigned int num_req_dev_types, const u8 *req_dev_types, |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 982 | const u8 *dev_id, unsigned int search_delay) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 983 | { |
| 984 | int res; |
| 985 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 986 | p2p_dbg(p2p, "Starting find (type=%d)", type); |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 987 | os_get_reltime(&p2p->find_start); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 988 | if (p2p->p2p_scan_running) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 989 | p2p_dbg(p2p, "p2p_scan is already running"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 990 | } |
| 991 | |
| 992 | p2p_free_req_dev_types(p2p); |
| 993 | if (req_dev_types && num_req_dev_types) { |
| 994 | p2p->req_dev_types = os_malloc(num_req_dev_types * |
| 995 | WPS_DEV_TYPE_LEN); |
| 996 | if (p2p->req_dev_types == NULL) |
| 997 | return -1; |
| 998 | os_memcpy(p2p->req_dev_types, req_dev_types, |
| 999 | num_req_dev_types * WPS_DEV_TYPE_LEN); |
| 1000 | p2p->num_req_dev_types = num_req_dev_types; |
| 1001 | } |
| 1002 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 1003 | if (dev_id) { |
| 1004 | os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN); |
| 1005 | p2p->find_dev_id = p2p->find_dev_id_buf; |
| 1006 | } else |
| 1007 | p2p->find_dev_id = NULL; |
| 1008 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1009 | p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING; |
| 1010 | p2p_clear_timeout(p2p); |
| 1011 | p2p->cfg->stop_listen(p2p->cfg->cb_ctx); |
| 1012 | p2p->find_type = type; |
| 1013 | p2p_device_clear_reported(p2p); |
| 1014 | p2p_set_state(p2p, P2P_SEARCH); |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 1015 | p2p->search_delay = search_delay; |
| 1016 | p2p->in_search_delay = 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1017 | eloop_cancel_timeout(p2p_find_timeout, p2p, NULL); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1018 | p2p->last_p2p_find_timeout = timeout; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1019 | if (timeout) |
| 1020 | eloop_register_timeout(timeout, 0, p2p_find_timeout, |
| 1021 | p2p, NULL); |
| 1022 | switch (type) { |
| 1023 | case P2P_FIND_START_WITH_FULL: |
| 1024 | case P2P_FIND_PROGRESSIVE: |
| 1025 | res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0, |
| 1026 | p2p->num_req_dev_types, |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1027 | p2p->req_dev_types, dev_id, |
| 1028 | DEV_PW_DEFAULT); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1029 | break; |
| 1030 | case P2P_FIND_ONLY_SOCIAL: |
| 1031 | res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0, |
| 1032 | p2p->num_req_dev_types, |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1033 | p2p->req_dev_types, dev_id, |
| 1034 | DEV_PW_DEFAULT); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1035 | break; |
| 1036 | default: |
| 1037 | return -1; |
| 1038 | } |
| 1039 | |
| 1040 | if (res == 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1041 | p2p_dbg(p2p, "Running p2p_scan"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1042 | p2p->p2p_scan_running = 1; |
| 1043 | eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL); |
| 1044 | eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout, |
| 1045 | p2p, NULL); |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 1046 | } else if (p2p->p2p_scan_running) { |
| 1047 | p2p_dbg(p2p, "Failed to start p2p_scan - another p2p_scan was already running"); |
| 1048 | /* wait for the previous p2p_scan to complete */ |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1049 | } else { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1050 | p2p_dbg(p2p, "Failed to start p2p_scan"); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1051 | p2p_set_state(p2p, P2P_IDLE); |
| 1052 | eloop_cancel_timeout(p2p_find_timeout, p2p, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1053 | } |
| 1054 | |
| 1055 | return res; |
| 1056 | } |
| 1057 | |
| 1058 | |
| 1059 | void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq) |
| 1060 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1061 | p2p_dbg(p2p, "Stopping find"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1062 | eloop_cancel_timeout(p2p_find_timeout, p2p, NULL); |
| 1063 | p2p_clear_timeout(p2p); |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 1064 | if (p2p->state == P2P_SEARCH) |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1065 | p2p->cfg->find_stopped(p2p->cfg->cb_ctx); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1066 | p2p_set_state(p2p, P2P_IDLE); |
| 1067 | p2p_free_req_dev_types(p2p); |
| 1068 | p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING; |
Dmitry Shmidt | 8c65289 | 2013-03-01 10:14:01 -0800 | [diff] [blame] | 1069 | if (p2p->go_neg_peer) |
| 1070 | p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1071 | p2p->go_neg_peer = NULL; |
| 1072 | p2p->sd_peer = NULL; |
| 1073 | p2p->invite_peer = NULL; |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1074 | p2p_stop_listen_for_freq(p2p, freq); |
| 1075 | } |
| 1076 | |
| 1077 | |
| 1078 | void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq) |
| 1079 | { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1080 | if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1081 | p2p_dbg(p2p, "Skip stop_listen since we are on correct channel for response"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1082 | return; |
| 1083 | } |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1084 | if (p2p->in_listen) { |
| 1085 | p2p->in_listen = 0; |
| 1086 | p2p_clear_timeout(p2p); |
| 1087 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1088 | if (p2p->drv_in_listen) { |
| 1089 | /* |
| 1090 | * The driver may not deliver callback to p2p_listen_end() |
| 1091 | * when the operation gets canceled, so clear the internal |
| 1092 | * variable that is tracking driver state. |
| 1093 | */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1094 | p2p_dbg(p2p, "Clear drv_in_listen (%d)", p2p->drv_in_listen); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1095 | p2p->drv_in_listen = 0; |
| 1096 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1097 | p2p->cfg->stop_listen(p2p->cfg->cb_ctx); |
| 1098 | } |
| 1099 | |
| 1100 | |
Dmitry Shmidt | 391c59f | 2013-09-03 12:16:28 -0700 | [diff] [blame] | 1101 | void p2p_stop_listen(struct p2p_data *p2p) |
| 1102 | { |
| 1103 | if (p2p->state != P2P_LISTEN_ONLY) { |
| 1104 | p2p_dbg(p2p, "Skip stop_listen since not in listen_only state."); |
| 1105 | return; |
| 1106 | } |
| 1107 | |
| 1108 | p2p_stop_listen_for_freq(p2p, 0); |
| 1109 | p2p_set_state(p2p, P2P_IDLE); |
| 1110 | } |
| 1111 | |
| 1112 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1113 | void p2p_stop_find(struct p2p_data *p2p) |
| 1114 | { |
| 1115 | p2p_stop_find_for_freq(p2p, 0); |
| 1116 | } |
| 1117 | |
| 1118 | |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1119 | static int p2p_prepare_channel_pref(struct p2p_data *p2p, |
| 1120 | unsigned int force_freq, |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1121 | unsigned int pref_freq, int go) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1122 | { |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1123 | u8 op_class, op_channel; |
| 1124 | unsigned int freq = force_freq ? force_freq : pref_freq; |
| 1125 | |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1126 | p2p_dbg(p2p, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d", |
| 1127 | force_freq, pref_freq, go); |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 1128 | if (p2p_freq_to_channel(freq, &op_class, &op_channel) < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1129 | p2p_dbg(p2p, "Unsupported frequency %u MHz", freq); |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1130 | return -1; |
| 1131 | } |
| 1132 | |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1133 | if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel) && |
| 1134 | (go || !p2p_channels_includes(&p2p->cfg->cli_channels, op_class, |
| 1135 | op_channel))) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1136 | p2p_dbg(p2p, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P", |
| 1137 | freq, op_class, op_channel); |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1138 | return -1; |
| 1139 | } |
| 1140 | |
| 1141 | p2p->op_reg_class = op_class; |
| 1142 | p2p->op_channel = op_channel; |
| 1143 | |
| 1144 | if (force_freq) { |
| 1145 | p2p->channels.reg_classes = 1; |
| 1146 | p2p->channels.reg_class[0].channels = 1; |
| 1147 | p2p->channels.reg_class[0].reg_class = p2p->op_reg_class; |
| 1148 | p2p->channels.reg_class[0].channel[0] = p2p->op_channel; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1149 | } else { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1150 | os_memcpy(&p2p->channels, &p2p->cfg->channels, |
| 1151 | sizeof(struct p2p_channels)); |
| 1152 | } |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1153 | |
| 1154 | return 0; |
| 1155 | } |
| 1156 | |
| 1157 | |
| 1158 | static void p2p_prepare_channel_best(struct p2p_data *p2p) |
| 1159 | { |
| 1160 | u8 op_class, op_channel; |
Dmitry Shmidt | a0d265f | 2013-11-19 13:13:41 -0800 | [diff] [blame] | 1161 | const int op_classes_5ghz[] = { 124, 115, 0 }; |
| 1162 | const int op_classes_ht40[] = { 126, 127, 116, 117, 0 }; |
Dmitry Shmidt | e0e48dc | 2013-11-18 12:00:06 -0800 | [diff] [blame] | 1163 | const int op_classes_vht[] = { 128, 0 }; |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1164 | |
Dmitry Shmidt | b7b4d0e | 2013-08-26 12:09:05 -0700 | [diff] [blame] | 1165 | p2p_dbg(p2p, "Prepare channel best"); |
| 1166 | |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1167 | if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 && |
| 1168 | p2p_supported_freq(p2p, p2p->best_freq_overall) && |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 1169 | p2p_freq_to_channel(p2p->best_freq_overall, &op_class, &op_channel) |
| 1170 | == 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1171 | p2p_dbg(p2p, "Select best overall channel as operating channel preference"); |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1172 | p2p->op_reg_class = op_class; |
| 1173 | p2p->op_channel = op_channel; |
| 1174 | } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 && |
| 1175 | p2p_supported_freq(p2p, p2p->best_freq_5) && |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 1176 | p2p_freq_to_channel(p2p->best_freq_5, &op_class, &op_channel) |
| 1177 | == 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1178 | p2p_dbg(p2p, "Select best 5 GHz channel as operating channel preference"); |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1179 | p2p->op_reg_class = op_class; |
| 1180 | p2p->op_channel = op_channel; |
| 1181 | } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_24 > 0 && |
| 1182 | p2p_supported_freq(p2p, p2p->best_freq_24) && |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 1183 | p2p_freq_to_channel(p2p->best_freq_24, &op_class, |
| 1184 | &op_channel) == 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1185 | p2p_dbg(p2p, "Select best 2.4 GHz channel as operating channel preference"); |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1186 | p2p->op_reg_class = op_class; |
| 1187 | p2p->op_channel = op_channel; |
Dmitry Shmidt | b7b4d0e | 2013-08-26 12:09:05 -0700 | [diff] [blame] | 1188 | } else if (p2p->cfg->num_pref_chan > 0 && |
| 1189 | p2p_channels_includes(&p2p->cfg->channels, |
| 1190 | p2p->cfg->pref_chan[0].op_class, |
| 1191 | p2p->cfg->pref_chan[0].chan)) { |
| 1192 | p2p_dbg(p2p, "Select first pref_chan entry as operating channel preference"); |
| 1193 | p2p->op_reg_class = p2p->cfg->pref_chan[0].op_class; |
| 1194 | p2p->op_channel = p2p->cfg->pref_chan[0].chan; |
Dmitry Shmidt | e0e48dc | 2013-11-18 12:00:06 -0800 | [diff] [blame] | 1195 | } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_vht, |
| 1196 | &p2p->op_reg_class, &p2p->op_channel) == |
| 1197 | 0) { |
| 1198 | p2p_dbg(p2p, "Select possible VHT channel (op_class %u channel %u) as operating channel preference", |
| 1199 | p2p->op_reg_class, p2p->op_channel); |
| 1200 | } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_ht40, |
| 1201 | &p2p->op_reg_class, &p2p->op_channel) == |
| 1202 | 0) { |
| 1203 | p2p_dbg(p2p, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference", |
| 1204 | p2p->op_reg_class, p2p->op_channel); |
| 1205 | } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_5ghz, |
| 1206 | &p2p->op_reg_class, &p2p->op_channel) == |
| 1207 | 0) { |
| 1208 | p2p_dbg(p2p, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference", |
| 1209 | p2p->op_reg_class, p2p->op_channel); |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1210 | } else { |
Dmitry Shmidt | b7b4d0e | 2013-08-26 12:09:05 -0700 | [diff] [blame] | 1211 | p2p_dbg(p2p, "Select pre-configured channel as operating channel preference"); |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1212 | p2p->op_reg_class = p2p->cfg->op_reg_class; |
| 1213 | p2p->op_channel = p2p->cfg->op_channel; |
| 1214 | } |
| 1215 | |
| 1216 | os_memcpy(&p2p->channels, &p2p->cfg->channels, |
| 1217 | sizeof(struct p2p_channels)); |
| 1218 | } |
| 1219 | |
| 1220 | |
| 1221 | /** |
| 1222 | * p2p_prepare_channel - Select operating channel for GO Negotiation |
| 1223 | * @p2p: P2P module context from p2p_init() |
| 1224 | * @dev: Selected peer device |
| 1225 | * @force_freq: Forced frequency in MHz or 0 if not forced |
| 1226 | * @pref_freq: Preferred frequency in MHz or 0 if no preference |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1227 | * @go: Whether the local end will be forced to be GO |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1228 | * Returns: 0 on success, -1 on failure (channel not supported for P2P) |
| 1229 | * |
| 1230 | * This function is used to do initial operating channel selection for GO |
| 1231 | * Negotiation prior to having received peer information. The selected channel |
| 1232 | * may be further optimized in p2p_reselect_channel() once the peer information |
| 1233 | * is available. |
| 1234 | */ |
Dmitry Shmidt | 7a5e50a | 2013-03-05 12:37:16 -0800 | [diff] [blame] | 1235 | int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev, |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1236 | unsigned int force_freq, unsigned int pref_freq, int go) |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1237 | { |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1238 | p2p_dbg(p2p, "Prepare channel - force_freq=%u pref_freq=%u go=%d", |
| 1239 | force_freq, pref_freq, go); |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1240 | if (force_freq || pref_freq) { |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1241 | if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq, go) < |
| 1242 | 0) |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1243 | return -1; |
| 1244 | } else { |
| 1245 | p2p_prepare_channel_best(p2p); |
| 1246 | } |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1247 | p2p_channels_dump(p2p, "prepared channels", &p2p->channels); |
| 1248 | if (go) |
| 1249 | p2p_channels_remove_freqs(&p2p->channels, &p2p->no_go_freq); |
| 1250 | else if (!force_freq) |
| 1251 | p2p_channels_union(&p2p->channels, &p2p->cfg->cli_channels, |
| 1252 | &p2p->channels); |
| 1253 | p2p_channels_dump(p2p, "after go/cli filter/add", &p2p->channels); |
| 1254 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1255 | p2p_dbg(p2p, "Own preference for operation channel: Operating Class %u Channel %u%s", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1256 | p2p->op_reg_class, p2p->op_channel, |
| 1257 | force_freq ? " (forced)" : ""); |
| 1258 | |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1259 | if (force_freq) |
| 1260 | dev->flags |= P2P_DEV_FORCE_FREQ; |
| 1261 | else |
| 1262 | dev->flags &= ~P2P_DEV_FORCE_FREQ; |
| 1263 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1264 | return 0; |
| 1265 | } |
| 1266 | |
| 1267 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1268 | static void p2p_set_dev_persistent(struct p2p_device *dev, |
| 1269 | int persistent_group) |
| 1270 | { |
| 1271 | switch (persistent_group) { |
| 1272 | case 0: |
| 1273 | dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP | |
| 1274 | P2P_DEV_PREFER_PERSISTENT_RECONN); |
| 1275 | break; |
| 1276 | case 1: |
| 1277 | dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP; |
| 1278 | dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN; |
| 1279 | break; |
| 1280 | case 2: |
| 1281 | dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP | |
| 1282 | P2P_DEV_PREFER_PERSISTENT_RECONN; |
| 1283 | break; |
| 1284 | } |
| 1285 | } |
| 1286 | |
| 1287 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1288 | int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr, |
| 1289 | enum p2p_wps_method wps_method, |
| 1290 | int go_intent, const u8 *own_interface_addr, |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1291 | unsigned int force_freq, int persistent_group, |
| 1292 | const u8 *force_ssid, size_t force_ssid_len, |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 1293 | int pd_before_go_neg, unsigned int pref_freq) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1294 | { |
| 1295 | struct p2p_device *dev; |
| 1296 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1297 | p2p_dbg(p2p, "Request to start group negotiation - peer=" MACSTR |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1298 | " GO Intent=%d Intended Interface Address=" MACSTR |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 1299 | " wps_method=%d persistent_group=%d pd_before_go_neg=%d", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1300 | MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr), |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 1301 | wps_method, persistent_group, pd_before_go_neg); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1302 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1303 | dev = p2p_get_device(p2p, peer_addr); |
| 1304 | if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1305 | p2p_dbg(p2p, "Cannot connect to unknown P2P Device " MACSTR, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1306 | MAC2STR(peer_addr)); |
| 1307 | return -1; |
| 1308 | } |
| 1309 | |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1310 | if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, |
| 1311 | go_intent == 15) < 0) |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1312 | return -1; |
| 1313 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1314 | if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) { |
| 1315 | if (!(dev->info.dev_capab & |
| 1316 | P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1317 | p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1318 | " that is in a group and is not discoverable", |
| 1319 | MAC2STR(peer_addr)); |
| 1320 | return -1; |
| 1321 | } |
| 1322 | if (dev->oper_freq <= 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1323 | p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1324 | " with incomplete information", |
| 1325 | MAC2STR(peer_addr)); |
| 1326 | return -1; |
| 1327 | } |
| 1328 | |
| 1329 | /* |
| 1330 | * First, try to connect directly. If the peer does not |
| 1331 | * acknowledge frames, assume it is sleeping and use device |
| 1332 | * discoverability via the GO at that point. |
| 1333 | */ |
| 1334 | } |
| 1335 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1336 | p2p->ssid_set = 0; |
| 1337 | if (force_ssid) { |
| 1338 | wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID", |
| 1339 | force_ssid, force_ssid_len); |
| 1340 | os_memcpy(p2p->ssid, force_ssid, force_ssid_len); |
| 1341 | p2p->ssid_len = force_ssid_len; |
| 1342 | p2p->ssid_set = 1; |
| 1343 | } |
| 1344 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1345 | dev->flags &= ~P2P_DEV_NOT_YET_READY; |
| 1346 | dev->flags &= ~P2P_DEV_USER_REJECTED; |
| 1347 | dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE; |
| 1348 | dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM; |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1349 | if (pd_before_go_neg) |
| 1350 | dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG; |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1351 | else { |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1352 | dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG; |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1353 | /* |
Dmitry Shmidt | 9cdf1b9 | 2013-02-27 12:58:50 -0800 | [diff] [blame] | 1354 | * Assign dialog token and tie breaker here to use the same |
| 1355 | * values in each retry within the same GO Negotiation exchange. |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1356 | */ |
| 1357 | dev->dialog_token++; |
| 1358 | if (dev->dialog_token == 0) |
| 1359 | dev->dialog_token = 1; |
Dmitry Shmidt | 9cdf1b9 | 2013-02-27 12:58:50 -0800 | [diff] [blame] | 1360 | dev->tie_breaker = p2p->next_tie_breaker; |
| 1361 | p2p->next_tie_breaker = !p2p->next_tie_breaker; |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1362 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1363 | dev->connect_reqs = 0; |
| 1364 | dev->go_neg_req_sent = 0; |
| 1365 | dev->go_state = UNKNOWN_GO; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1366 | p2p_set_dev_persistent(dev, persistent_group); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1367 | p2p->go_intent = go_intent; |
| 1368 | os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN); |
| 1369 | |
| 1370 | if (p2p->state != P2P_IDLE) |
| 1371 | p2p_stop_find(p2p); |
| 1372 | |
| 1373 | if (p2p->after_scan_tx) { |
| 1374 | /* |
| 1375 | * We need to drop the pending frame to avoid issues with the |
| 1376 | * new GO Negotiation, e.g., when the pending frame was from a |
| 1377 | * previous attempt at starting a GO Negotiation. |
| 1378 | */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1379 | p2p_dbg(p2p, "Dropped previous pending Action frame TX that was waiting for p2p_scan completion"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1380 | os_free(p2p->after_scan_tx); |
| 1381 | p2p->after_scan_tx = NULL; |
| 1382 | } |
| 1383 | |
| 1384 | dev->wps_method = wps_method; |
| 1385 | dev->status = P2P_SC_SUCCESS; |
| 1386 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1387 | if (p2p->p2p_scan_running) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1388 | p2p_dbg(p2p, "p2p_scan running - delay connect send"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1389 | p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT; |
| 1390 | os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN); |
| 1391 | return 0; |
| 1392 | } |
| 1393 | p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING; |
| 1394 | |
| 1395 | return p2p_connect_send(p2p, dev); |
| 1396 | } |
| 1397 | |
| 1398 | |
| 1399 | int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr, |
| 1400 | enum p2p_wps_method wps_method, |
| 1401 | int go_intent, const u8 *own_interface_addr, |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1402 | unsigned int force_freq, int persistent_group, |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 1403 | const u8 *force_ssid, size_t force_ssid_len, |
| 1404 | unsigned int pref_freq) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1405 | { |
| 1406 | struct p2p_device *dev; |
| 1407 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1408 | p2p_dbg(p2p, "Request to authorize group negotiation - peer=" MACSTR |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1409 | " GO Intent=%d Intended Interface Address=" MACSTR |
| 1410 | " wps_method=%d persistent_group=%d", |
| 1411 | MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr), |
| 1412 | wps_method, persistent_group); |
| 1413 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1414 | dev = p2p_get_device(p2p, peer_addr); |
| 1415 | if (dev == NULL) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1416 | p2p_dbg(p2p, "Cannot authorize unknown P2P Device " MACSTR, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1417 | MAC2STR(peer_addr)); |
| 1418 | return -1; |
| 1419 | } |
| 1420 | |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1421 | if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, go_intent == |
| 1422 | 15) < 0) |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 1423 | return -1; |
| 1424 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1425 | p2p->ssid_set = 0; |
| 1426 | if (force_ssid) { |
| 1427 | wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID", |
| 1428 | force_ssid, force_ssid_len); |
| 1429 | os_memcpy(p2p->ssid, force_ssid, force_ssid_len); |
| 1430 | p2p->ssid_len = force_ssid_len; |
| 1431 | p2p->ssid_set = 1; |
| 1432 | } |
| 1433 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1434 | dev->flags &= ~P2P_DEV_NOT_YET_READY; |
| 1435 | dev->flags &= ~P2P_DEV_USER_REJECTED; |
| 1436 | dev->go_neg_req_sent = 0; |
| 1437 | dev->go_state = UNKNOWN_GO; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1438 | p2p_set_dev_persistent(dev, persistent_group); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1439 | p2p->go_intent = go_intent; |
| 1440 | os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN); |
| 1441 | |
| 1442 | dev->wps_method = wps_method; |
| 1443 | dev->status = P2P_SC_SUCCESS; |
| 1444 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1445 | return 0; |
| 1446 | } |
| 1447 | |
| 1448 | |
| 1449 | void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr, |
| 1450 | struct p2p_device *dev, struct p2p_message *msg) |
| 1451 | { |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 1452 | os_get_reltime(&dev->last_seen); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1453 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1454 | p2p_copy_wps_info(p2p, dev, 0, msg); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1455 | |
| 1456 | if (msg->listen_channel) { |
| 1457 | int freq; |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 1458 | freq = p2p_channel_to_freq(msg->listen_channel[3], |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1459 | msg->listen_channel[4]); |
| 1460 | if (freq < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1461 | p2p_dbg(p2p, "Unknown peer Listen channel: " |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1462 | "country=%c%c(0x%02x) reg_class=%u channel=%u", |
| 1463 | msg->listen_channel[0], |
| 1464 | msg->listen_channel[1], |
| 1465 | msg->listen_channel[2], |
| 1466 | msg->listen_channel[3], |
| 1467 | msg->listen_channel[4]); |
| 1468 | } else { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1469 | p2p_dbg(p2p, "Update peer " MACSTR |
| 1470 | " Listen channel: %u -> %u MHz", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1471 | MAC2STR(dev->info.p2p_device_addr), |
| 1472 | dev->listen_freq, freq); |
| 1473 | dev->listen_freq = freq; |
| 1474 | } |
| 1475 | } |
| 1476 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 1477 | if (msg->wfd_subelems) { |
| 1478 | wpabuf_free(dev->info.wfd_subelems); |
| 1479 | dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems); |
| 1480 | } |
| 1481 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1482 | if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) { |
| 1483 | dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY; |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1484 | p2p_dbg(p2p, "Completed device entry based on data from GO Negotiation Request"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1485 | } else { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1486 | p2p_dbg(p2p, "Created device entry based on GO Neg Req: " |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1487 | MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' " |
| 1488 | "listen_freq=%d", |
| 1489 | MAC2STR(dev->info.p2p_device_addr), |
| 1490 | dev->info.dev_capab, dev->info.group_capab, |
| 1491 | dev->info.device_name, dev->listen_freq); |
| 1492 | } |
| 1493 | |
| 1494 | dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY; |
| 1495 | |
| 1496 | if (dev->flags & P2P_DEV_USER_REJECTED) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1497 | p2p_dbg(p2p, "Do not report rejected device"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1498 | return; |
| 1499 | } |
| 1500 | |
| 1501 | p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info, |
| 1502 | !(dev->flags & P2P_DEV_REPORTED_ONCE)); |
| 1503 | dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE; |
| 1504 | } |
| 1505 | |
| 1506 | |
| 1507 | void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len) |
| 1508 | { |
| 1509 | os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN); |
| 1510 | p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2); |
| 1511 | os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2], |
| 1512 | p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len); |
| 1513 | *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len; |
| 1514 | } |
| 1515 | |
| 1516 | |
| 1517 | int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params) |
| 1518 | { |
| 1519 | p2p_build_ssid(p2p, params->ssid, ¶ms->ssid_len); |
| 1520 | p2p_random(params->passphrase, 8); |
| 1521 | return 0; |
| 1522 | } |
| 1523 | |
| 1524 | |
| 1525 | void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer) |
| 1526 | { |
| 1527 | struct p2p_go_neg_results res; |
| 1528 | int go = peer->go_state == LOCAL_GO; |
| 1529 | struct p2p_channels intersection; |
| 1530 | int freqs; |
| 1531 | size_t i, j; |
| 1532 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1533 | p2p_dbg(p2p, "GO Negotiation with " MACSTR " completed (%s will be GO)", |
| 1534 | MAC2STR(peer->info.p2p_device_addr), go ? "local end" : "peer"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1535 | |
| 1536 | os_memset(&res, 0, sizeof(res)); |
| 1537 | res.role_go = go; |
| 1538 | os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN); |
| 1539 | os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN); |
| 1540 | res.wps_method = peer->wps_method; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1541 | if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) { |
| 1542 | if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN) |
| 1543 | res.persistent_group = 2; |
| 1544 | else |
| 1545 | res.persistent_group = 1; |
| 1546 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1547 | |
| 1548 | if (go) { |
| 1549 | /* Setup AP mode for WPS provisioning */ |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 1550 | res.freq = p2p_channel_to_freq(p2p->op_reg_class, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1551 | p2p->op_channel); |
| 1552 | os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len); |
| 1553 | res.ssid_len = p2p->ssid_len; |
| 1554 | p2p_random(res.passphrase, 8); |
| 1555 | } else { |
| 1556 | res.freq = peer->oper_freq; |
| 1557 | if (p2p->ssid_len) { |
| 1558 | os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len); |
| 1559 | res.ssid_len = p2p->ssid_len; |
| 1560 | } |
| 1561 | } |
| 1562 | |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1563 | p2p_channels_dump(p2p, "own channels", &p2p->channels); |
| 1564 | p2p_channels_dump(p2p, "peer channels", &peer->channels); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1565 | p2p_channels_intersect(&p2p->channels, &peer->channels, |
| 1566 | &intersection); |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1567 | if (go) { |
| 1568 | p2p_channels_remove_freqs(&intersection, &p2p->no_go_freq); |
| 1569 | p2p_channels_dump(p2p, "intersection after no-GO removal", |
| 1570 | &intersection); |
| 1571 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1572 | freqs = 0; |
| 1573 | for (i = 0; i < intersection.reg_classes; i++) { |
| 1574 | struct p2p_reg_class *c = &intersection.reg_class[i]; |
| 1575 | if (freqs + 1 == P2P_MAX_CHANNELS) |
| 1576 | break; |
| 1577 | for (j = 0; j < c->channels; j++) { |
| 1578 | int freq; |
| 1579 | if (freqs + 1 == P2P_MAX_CHANNELS) |
| 1580 | break; |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 1581 | freq = p2p_channel_to_freq(c->reg_class, c->channel[j]); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1582 | if (freq < 0) |
| 1583 | continue; |
| 1584 | res.freq_list[freqs++] = freq; |
| 1585 | } |
| 1586 | } |
| 1587 | |
| 1588 | res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout; |
| 1589 | |
| 1590 | p2p_clear_timeout(p2p); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1591 | p2p->ssid_set = 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1592 | peer->go_neg_req_sent = 0; |
| 1593 | peer->wps_method = WPS_NOT_READY; |
| 1594 | |
| 1595 | p2p_set_state(p2p, P2P_PROVISIONING); |
| 1596 | p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res); |
| 1597 | } |
| 1598 | |
| 1599 | |
| 1600 | static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa, |
| 1601 | const u8 *data, size_t len, int rx_freq) |
| 1602 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1603 | p2p_dbg(p2p, "RX P2P Public Action from " MACSTR, MAC2STR(sa)); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1604 | wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len); |
| 1605 | |
| 1606 | if (len < 1) |
| 1607 | return; |
| 1608 | |
| 1609 | switch (data[0]) { |
| 1610 | case P2P_GO_NEG_REQ: |
| 1611 | p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq); |
| 1612 | break; |
| 1613 | case P2P_GO_NEG_RESP: |
| 1614 | p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq); |
| 1615 | break; |
| 1616 | case P2P_GO_NEG_CONF: |
| 1617 | p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1); |
| 1618 | break; |
| 1619 | case P2P_INVITATION_REQ: |
| 1620 | p2p_process_invitation_req(p2p, sa, data + 1, len - 1, |
| 1621 | rx_freq); |
| 1622 | break; |
| 1623 | case P2P_INVITATION_RESP: |
Dmitry Shmidt | 051af73 | 2013-10-22 13:52:46 -0700 | [diff] [blame] | 1624 | p2p->cfg->send_action_done(p2p->cfg->cb_ctx); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1625 | p2p_process_invitation_resp(p2p, sa, data + 1, len - 1); |
| 1626 | break; |
| 1627 | case P2P_PROV_DISC_REQ: |
| 1628 | p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq); |
| 1629 | break; |
| 1630 | case P2P_PROV_DISC_RESP: |
| 1631 | p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1); |
| 1632 | break; |
| 1633 | case P2P_DEV_DISC_REQ: |
| 1634 | p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq); |
| 1635 | break; |
| 1636 | case P2P_DEV_DISC_RESP: |
| 1637 | p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1); |
| 1638 | break; |
| 1639 | default: |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1640 | p2p_dbg(p2p, "Unsupported P2P Public Action frame type %d", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1641 | data[0]); |
| 1642 | break; |
| 1643 | } |
| 1644 | } |
| 1645 | |
| 1646 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1647 | static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da, |
| 1648 | const u8 *sa, const u8 *bssid, const u8 *data, |
| 1649 | size_t len, int freq) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1650 | { |
| 1651 | if (len < 1) |
| 1652 | return; |
| 1653 | |
| 1654 | switch (data[0]) { |
| 1655 | case WLAN_PA_VENDOR_SPECIFIC: |
| 1656 | data++; |
| 1657 | len--; |
| 1658 | if (len < 3) |
| 1659 | return; |
| 1660 | if (WPA_GET_BE24(data) != OUI_WFA) |
| 1661 | return; |
| 1662 | |
| 1663 | data += 3; |
| 1664 | len -= 3; |
| 1665 | if (len < 1) |
| 1666 | return; |
| 1667 | |
| 1668 | if (*data != P2P_OUI_TYPE) |
| 1669 | return; |
| 1670 | |
| 1671 | p2p_rx_p2p_action(p2p, sa, data + 1, len - 1, freq); |
| 1672 | break; |
| 1673 | case WLAN_PA_GAS_INITIAL_REQ: |
| 1674 | p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq); |
| 1675 | break; |
| 1676 | case WLAN_PA_GAS_INITIAL_RESP: |
| 1677 | p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq); |
| 1678 | break; |
| 1679 | case WLAN_PA_GAS_COMEBACK_REQ: |
| 1680 | p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq); |
| 1681 | break; |
| 1682 | case WLAN_PA_GAS_COMEBACK_RESP: |
| 1683 | p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq); |
| 1684 | break; |
| 1685 | } |
| 1686 | } |
| 1687 | |
| 1688 | |
| 1689 | void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa, |
| 1690 | const u8 *bssid, u8 category, |
| 1691 | const u8 *data, size_t len, int freq) |
| 1692 | { |
| 1693 | if (category == WLAN_ACTION_PUBLIC) { |
| 1694 | p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq); |
| 1695 | return; |
| 1696 | } |
| 1697 | |
| 1698 | if (category != WLAN_ACTION_VENDOR_SPECIFIC) |
| 1699 | return; |
| 1700 | |
| 1701 | if (len < 4) |
| 1702 | return; |
| 1703 | |
| 1704 | if (WPA_GET_BE24(data) != OUI_WFA) |
| 1705 | return; |
| 1706 | data += 3; |
| 1707 | len -= 3; |
| 1708 | |
| 1709 | if (*data != P2P_OUI_TYPE) |
| 1710 | return; |
| 1711 | data++; |
| 1712 | len--; |
| 1713 | |
| 1714 | /* P2P action frame */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1715 | p2p_dbg(p2p, "RX P2P Action from " MACSTR, MAC2STR(sa)); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1716 | wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len); |
| 1717 | |
| 1718 | if (len < 1) |
| 1719 | return; |
| 1720 | switch (data[0]) { |
| 1721 | case P2P_NOA: |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1722 | p2p_dbg(p2p, "Received P2P Action - Notice of Absence"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1723 | /* TODO */ |
| 1724 | break; |
| 1725 | case P2P_PRESENCE_REQ: |
| 1726 | p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq); |
| 1727 | break; |
| 1728 | case P2P_PRESENCE_RESP: |
| 1729 | p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1); |
| 1730 | break; |
| 1731 | case P2P_GO_DISC_REQ: |
| 1732 | p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq); |
| 1733 | break; |
| 1734 | default: |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1735 | p2p_dbg(p2p, "Received P2P Action - unknown type %u", data[0]); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1736 | break; |
| 1737 | } |
| 1738 | } |
| 1739 | |
| 1740 | |
| 1741 | static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx) |
| 1742 | { |
| 1743 | struct p2p_data *p2p = eloop_ctx; |
| 1744 | if (p2p->go_neg_peer == NULL) |
| 1745 | return; |
| 1746 | p2p->cfg->stop_listen(p2p->cfg->cb_ctx); |
| 1747 | p2p->go_neg_peer->status = P2P_SC_SUCCESS; |
| 1748 | p2p_connect_send(p2p, p2p->go_neg_peer); |
| 1749 | } |
| 1750 | |
| 1751 | |
| 1752 | static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx) |
| 1753 | { |
| 1754 | struct p2p_data *p2p = eloop_ctx; |
| 1755 | if (p2p->invite_peer == NULL) |
| 1756 | return; |
| 1757 | p2p->cfg->stop_listen(p2p->cfg->cb_ctx); |
| 1758 | p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr); |
| 1759 | } |
| 1760 | |
| 1761 | |
| 1762 | static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr, |
| 1763 | const u8 *ie, size_t ie_len) |
| 1764 | { |
| 1765 | struct p2p_message msg; |
| 1766 | struct p2p_device *dev; |
| 1767 | |
| 1768 | os_memset(&msg, 0, sizeof(msg)); |
| 1769 | if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL) |
| 1770 | { |
| 1771 | p2p_parse_free(&msg); |
| 1772 | return; /* not a P2P probe */ |
| 1773 | } |
| 1774 | |
| 1775 | if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN || |
| 1776 | os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) |
| 1777 | != 0) { |
| 1778 | /* The Probe Request is not part of P2P Device Discovery. It is |
| 1779 | * not known whether the source address of the frame is the P2P |
| 1780 | * Device Address or P2P Interface Address. Do not add a new |
| 1781 | * peer entry based on this frames. |
| 1782 | */ |
| 1783 | p2p_parse_free(&msg); |
| 1784 | return; |
| 1785 | } |
| 1786 | |
| 1787 | dev = p2p_get_device(p2p, addr); |
| 1788 | if (dev) { |
| 1789 | if (dev->country[0] == 0 && msg.listen_channel) |
| 1790 | os_memcpy(dev->country, msg.listen_channel, 3); |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 1791 | os_get_reltime(&dev->last_seen); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1792 | p2p_parse_free(&msg); |
| 1793 | return; /* already known */ |
| 1794 | } |
| 1795 | |
| 1796 | dev = p2p_create_device(p2p, addr); |
| 1797 | if (dev == NULL) { |
| 1798 | p2p_parse_free(&msg); |
| 1799 | return; |
| 1800 | } |
| 1801 | |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 1802 | os_get_reltime(&dev->last_seen); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1803 | dev->flags |= P2P_DEV_PROBE_REQ_ONLY; |
| 1804 | |
| 1805 | if (msg.listen_channel) { |
| 1806 | os_memcpy(dev->country, msg.listen_channel, 3); |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 1807 | dev->listen_freq = p2p_channel_to_freq(msg.listen_channel[3], |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1808 | msg.listen_channel[4]); |
| 1809 | } |
| 1810 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1811 | p2p_copy_wps_info(p2p, dev, 1, &msg); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1812 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 1813 | if (msg.wfd_subelems) { |
| 1814 | wpabuf_free(dev->info.wfd_subelems); |
| 1815 | dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems); |
| 1816 | } |
| 1817 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1818 | p2p_parse_free(&msg); |
| 1819 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 1820 | p2p_dbg(p2p, "Created device entry based on Probe Req: " MACSTR |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1821 | " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d", |
| 1822 | MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab, |
| 1823 | dev->info.group_capab, dev->info.device_name, |
| 1824 | dev->listen_freq); |
| 1825 | } |
| 1826 | |
| 1827 | |
| 1828 | struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p, |
| 1829 | const u8 *addr, |
| 1830 | struct p2p_message *msg) |
| 1831 | { |
| 1832 | struct p2p_device *dev; |
| 1833 | |
| 1834 | dev = p2p_get_device(p2p, addr); |
| 1835 | if (dev) { |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 1836 | os_get_reltime(&dev->last_seen); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1837 | return dev; /* already known */ |
| 1838 | } |
| 1839 | |
| 1840 | dev = p2p_create_device(p2p, addr); |
| 1841 | if (dev == NULL) |
| 1842 | return NULL; |
| 1843 | |
| 1844 | p2p_add_dev_info(p2p, addr, dev, msg); |
| 1845 | |
| 1846 | return dev; |
| 1847 | } |
| 1848 | |
| 1849 | |
| 1850 | static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type) |
| 1851 | { |
| 1852 | if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0) |
| 1853 | return 1; |
| 1854 | if (os_memcmp(dev_type, req_dev_type, 2) == 0 && |
| 1855 | WPA_GET_BE32(&req_dev_type[2]) == 0 && |
| 1856 | WPA_GET_BE16(&req_dev_type[6]) == 0) |
| 1857 | return 1; /* Category match with wildcard OUI/sub-category */ |
| 1858 | return 0; |
| 1859 | } |
| 1860 | |
| 1861 | |
| 1862 | int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[], |
| 1863 | size_t num_req_dev_type) |
| 1864 | { |
| 1865 | size_t i; |
| 1866 | for (i = 0; i < num_req_dev_type; i++) { |
| 1867 | if (dev_type_match(dev_type, req_dev_type[i])) |
| 1868 | return 1; |
| 1869 | } |
| 1870 | return 0; |
| 1871 | } |
| 1872 | |
| 1873 | |
| 1874 | /** |
| 1875 | * p2p_match_dev_type - Match local device type with requested type |
| 1876 | * @p2p: P2P module context from p2p_init() |
| 1877 | * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) |
| 1878 | * Returns: 1 on match, 0 on mismatch |
| 1879 | * |
| 1880 | * This function can be used to match the Requested Device Type attribute in |
| 1881 | * WPS IE with the local device types for deciding whether to reply to a Probe |
| 1882 | * Request frame. |
| 1883 | */ |
| 1884 | int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps) |
| 1885 | { |
| 1886 | struct wps_parse_attr attr; |
| 1887 | size_t i; |
| 1888 | |
| 1889 | if (wps_parse_msg(wps, &attr)) |
| 1890 | return 1; /* assume no Requested Device Type attributes */ |
| 1891 | |
| 1892 | if (attr.num_req_dev_type == 0) |
| 1893 | return 1; /* no Requested Device Type attributes -> match */ |
| 1894 | |
| 1895 | if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type, |
| 1896 | attr.num_req_dev_type)) |
| 1897 | return 1; /* Own Primary Device Type matches */ |
| 1898 | |
| 1899 | for (i = 0; i < p2p->cfg->num_sec_dev_types; i++) |
| 1900 | if (dev_type_list_match(p2p->cfg->sec_dev_type[i], |
| 1901 | attr.req_dev_type, |
| 1902 | attr.num_req_dev_type)) |
| 1903 | return 1; /* Own Secondary Device Type matches */ |
| 1904 | |
| 1905 | /* No matching device type found */ |
| 1906 | return 0; |
| 1907 | } |
| 1908 | |
| 1909 | |
| 1910 | struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p) |
| 1911 | { |
| 1912 | struct wpabuf *buf; |
| 1913 | u8 *len; |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1914 | int pw_id = -1; |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 1915 | size_t extra = 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1916 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 1917 | #ifdef CONFIG_WIFI_DISPLAY |
| 1918 | if (p2p->wfd_ie_probe_resp) |
| 1919 | extra = wpabuf_len(p2p->wfd_ie_probe_resp); |
| 1920 | #endif /* CONFIG_WIFI_DISPLAY */ |
| 1921 | |
| 1922 | buf = wpabuf_alloc(1000 + extra); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1923 | if (buf == NULL) |
| 1924 | return NULL; |
| 1925 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1926 | if (p2p->go_neg_peer) { |
| 1927 | /* Advertise immediate availability of WPS credential */ |
| 1928 | pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method); |
| 1929 | } |
| 1930 | |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 1931 | if (p2p_build_wps_ie(p2p, buf, pw_id, 1) < 0) { |
| 1932 | p2p_dbg(p2p, "Failed to build WPS IE for Probe Response"); |
| 1933 | wpabuf_free(buf); |
| 1934 | return NULL; |
| 1935 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1936 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 1937 | #ifdef CONFIG_WIFI_DISPLAY |
| 1938 | if (p2p->wfd_ie_probe_resp) |
| 1939 | wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp); |
| 1940 | #endif /* CONFIG_WIFI_DISPLAY */ |
| 1941 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1942 | /* P2P IE */ |
| 1943 | len = p2p_buf_add_ie_hdr(buf); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1944 | p2p_buf_add_capability(buf, p2p->dev_capab & |
| 1945 | ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1946 | if (p2p->ext_listen_interval) |
| 1947 | p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period, |
| 1948 | p2p->ext_listen_interval); |
| 1949 | p2p_buf_add_device_info(buf, p2p, NULL); |
| 1950 | p2p_buf_update_ie_hdr(buf, len); |
| 1951 | |
| 1952 | return buf; |
| 1953 | } |
| 1954 | |
| 1955 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1956 | static enum p2p_probe_req_status |
| 1957 | p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst, |
| 1958 | const u8 *bssid, const u8 *ie, size_t ie_len) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1959 | { |
| 1960 | struct ieee802_11_elems elems; |
| 1961 | struct wpabuf *buf; |
| 1962 | struct ieee80211_mgmt *resp; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1963 | struct p2p_message msg; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1964 | struct wpabuf *ies; |
| 1965 | |
| 1966 | if (!p2p->in_listen || !p2p->drv_in_listen) { |
| 1967 | /* not in Listen state - ignore Probe Request */ |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1968 | return P2P_PREQ_NOT_LISTEN; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1969 | } |
| 1970 | |
| 1971 | if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) == |
| 1972 | ParseFailed) { |
| 1973 | /* Ignore invalid Probe Request frames */ |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1974 | return P2P_PREQ_MALFORMED; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1975 | } |
| 1976 | |
| 1977 | if (elems.p2p == NULL) { |
| 1978 | /* not a P2P probe - ignore it */ |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1979 | return P2P_PREQ_NOT_P2P; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1980 | } |
| 1981 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1982 | if (dst && !is_broadcast_ether_addr(dst) && |
| 1983 | os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) { |
| 1984 | /* Not sent to the broadcast address or our P2P Device Address |
| 1985 | */ |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1986 | return P2P_PREQ_NOT_PROCESSED; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1987 | } |
| 1988 | |
| 1989 | if (bssid && !is_broadcast_ether_addr(bssid)) { |
| 1990 | /* Not sent to the Wildcard BSSID */ |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1991 | return P2P_PREQ_NOT_PROCESSED; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1992 | } |
| 1993 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1994 | if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN || |
| 1995 | os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) != |
| 1996 | 0) { |
| 1997 | /* not using P2P Wildcard SSID - ignore */ |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 1998 | return P2P_PREQ_NOT_PROCESSED; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1999 | } |
| 2000 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2001 | if (supp_rates_11b_only(&elems)) { |
| 2002 | /* Indicates support for 11b rates only */ |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2003 | return P2P_PREQ_NOT_P2P; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2004 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2005 | |
| 2006 | os_memset(&msg, 0, sizeof(msg)); |
| 2007 | if (p2p_parse_ies(ie, ie_len, &msg) < 0) { |
| 2008 | /* Could not parse P2P attributes */ |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2009 | return P2P_PREQ_NOT_P2P; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2010 | } |
| 2011 | |
| 2012 | if (msg.device_id && |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2013 | os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2014 | /* Device ID did not match */ |
| 2015 | p2p_parse_free(&msg); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2016 | return P2P_PREQ_NOT_PROCESSED; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2017 | } |
| 2018 | |
| 2019 | /* Check Requested Device Type match */ |
| 2020 | if (msg.wps_attributes && |
| 2021 | !p2p_match_dev_type(p2p, msg.wps_attributes)) { |
| 2022 | /* No match with Requested Device Type */ |
| 2023 | p2p_parse_free(&msg); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2024 | return P2P_PREQ_NOT_PROCESSED; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2025 | } |
| 2026 | p2p_parse_free(&msg); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2027 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2028 | if (!p2p->cfg->send_probe_resp) { |
| 2029 | /* Response generated elsewhere */ |
| 2030 | return P2P_PREQ_NOT_PROCESSED; |
| 2031 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2032 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2033 | p2p_dbg(p2p, "Reply to P2P Probe Request in Listen state"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2034 | |
| 2035 | /* |
| 2036 | * We do not really have a specific BSS that this frame is advertising, |
| 2037 | * so build a frame that has some information in valid format. This is |
| 2038 | * really only used for discovery purposes, not to learn exact BSS |
| 2039 | * parameters. |
| 2040 | */ |
| 2041 | ies = p2p_build_probe_resp_ies(p2p); |
| 2042 | if (ies == NULL) |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2043 | return P2P_PREQ_NOT_PROCESSED; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2044 | |
| 2045 | buf = wpabuf_alloc(200 + wpabuf_len(ies)); |
| 2046 | if (buf == NULL) { |
| 2047 | wpabuf_free(ies); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2048 | return P2P_PREQ_NOT_PROCESSED; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2049 | } |
| 2050 | |
| 2051 | resp = NULL; |
| 2052 | resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp); |
| 2053 | |
| 2054 | resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) | |
| 2055 | (WLAN_FC_STYPE_PROBE_RESP << 4)); |
| 2056 | os_memcpy(resp->da, addr, ETH_ALEN); |
| 2057 | os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN); |
| 2058 | os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN); |
| 2059 | resp->u.probe_resp.beacon_int = host_to_le16(100); |
| 2060 | /* hardware or low-level driver will setup seq_ctrl and timestamp */ |
| 2061 | resp->u.probe_resp.capab_info = |
| 2062 | host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE | |
| 2063 | WLAN_CAPABILITY_PRIVACY | |
| 2064 | WLAN_CAPABILITY_SHORT_SLOT_TIME); |
| 2065 | |
| 2066 | wpabuf_put_u8(buf, WLAN_EID_SSID); |
| 2067 | wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN); |
| 2068 | wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN); |
| 2069 | |
| 2070 | wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES); |
| 2071 | wpabuf_put_u8(buf, 8); |
| 2072 | wpabuf_put_u8(buf, (60 / 5) | 0x80); |
| 2073 | wpabuf_put_u8(buf, 90 / 5); |
| 2074 | wpabuf_put_u8(buf, (120 / 5) | 0x80); |
| 2075 | wpabuf_put_u8(buf, 180 / 5); |
| 2076 | wpabuf_put_u8(buf, (240 / 5) | 0x80); |
| 2077 | wpabuf_put_u8(buf, 360 / 5); |
| 2078 | wpabuf_put_u8(buf, 480 / 5); |
| 2079 | wpabuf_put_u8(buf, 540 / 5); |
| 2080 | |
| 2081 | wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS); |
| 2082 | wpabuf_put_u8(buf, 1); |
| 2083 | wpabuf_put_u8(buf, p2p->cfg->channel); |
| 2084 | |
| 2085 | wpabuf_put_buf(buf, ies); |
| 2086 | wpabuf_free(ies); |
| 2087 | |
| 2088 | p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf); |
| 2089 | |
| 2090 | wpabuf_free(buf); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2091 | |
| 2092 | return P2P_PREQ_NOT_PROCESSED; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2093 | } |
| 2094 | |
| 2095 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2096 | enum p2p_probe_req_status |
| 2097 | p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst, |
| 2098 | const u8 *bssid, const u8 *ie, size_t ie_len) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2099 | { |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2100 | enum p2p_probe_req_status res; |
| 2101 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2102 | p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len); |
| 2103 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2104 | res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2105 | |
| 2106 | if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) && |
| 2107 | p2p->go_neg_peer && |
| 2108 | os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN) |
Dmitry Shmidt | 9cdf1b9 | 2013-02-27 12:58:50 -0800 | [diff] [blame] | 2109 | == 0 && |
| 2110 | !(p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2111 | /* Received a Probe Request from GO Negotiation peer */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2112 | p2p_dbg(p2p, "Found GO Negotiation peer - try to start GO negotiation from timeout"); |
Dmitry Shmidt | 9cdf1b9 | 2013-02-27 12:58:50 -0800 | [diff] [blame] | 2113 | eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2114 | eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2115 | return P2P_PREQ_PROCESSED; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2116 | } |
| 2117 | |
| 2118 | if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) && |
| 2119 | p2p->invite_peer && |
| 2120 | os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN) |
| 2121 | == 0) { |
| 2122 | /* Received a Probe Request from Invite peer */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2123 | p2p_dbg(p2p, "Found Invite peer - try to start Invite from timeout"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2124 | eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2125 | return P2P_PREQ_PROCESSED; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2126 | } |
| 2127 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2128 | return res; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2129 | } |
| 2130 | |
| 2131 | |
| 2132 | static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid, |
| 2133 | u8 *buf, size_t len, struct wpabuf *p2p_ie) |
| 2134 | { |
| 2135 | struct wpabuf *tmp; |
| 2136 | u8 *lpos; |
| 2137 | size_t tmplen; |
| 2138 | int res; |
| 2139 | u8 group_capab; |
| 2140 | |
| 2141 | if (p2p_ie == NULL) |
| 2142 | return 0; /* WLAN AP is not a P2P manager */ |
| 2143 | |
| 2144 | /* |
| 2145 | * (Re)Association Request - P2P IE |
| 2146 | * P2P Capability attribute (shall be present) |
| 2147 | * P2P Interface attribute (present if concurrent device and |
| 2148 | * P2P Management is enabled) |
| 2149 | */ |
| 2150 | tmp = wpabuf_alloc(200); |
| 2151 | if (tmp == NULL) |
| 2152 | return -1; |
| 2153 | |
| 2154 | lpos = p2p_buf_add_ie_hdr(tmp); |
| 2155 | group_capab = 0; |
| 2156 | if (p2p->num_groups > 0) { |
| 2157 | group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER; |
| 2158 | if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) && |
| 2159 | (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) && |
| 2160 | p2p->cross_connect) |
| 2161 | group_capab |= P2P_GROUP_CAPAB_CROSS_CONN; |
| 2162 | } |
| 2163 | p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab); |
| 2164 | if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) && |
| 2165 | (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED)) |
| 2166 | p2p_buf_add_p2p_interface(tmp, p2p); |
| 2167 | p2p_buf_update_ie_hdr(tmp, lpos); |
| 2168 | |
| 2169 | tmplen = wpabuf_len(tmp); |
| 2170 | if (tmplen > len) |
| 2171 | res = -1; |
| 2172 | else { |
| 2173 | os_memcpy(buf, wpabuf_head(tmp), tmplen); |
| 2174 | res = tmplen; |
| 2175 | } |
| 2176 | wpabuf_free(tmp); |
| 2177 | |
| 2178 | return res; |
| 2179 | } |
| 2180 | |
| 2181 | |
| 2182 | int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf, |
| 2183 | size_t len, int p2p_group, struct wpabuf *p2p_ie) |
| 2184 | { |
| 2185 | struct wpabuf *tmp; |
| 2186 | u8 *lpos; |
| 2187 | struct p2p_device *peer; |
| 2188 | size_t tmplen; |
| 2189 | int res; |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 2190 | size_t extra = 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2191 | |
| 2192 | if (!p2p_group) |
| 2193 | return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie); |
| 2194 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 2195 | #ifdef CONFIG_WIFI_DISPLAY |
| 2196 | if (p2p->wfd_ie_assoc_req) |
| 2197 | extra = wpabuf_len(p2p->wfd_ie_assoc_req); |
| 2198 | #endif /* CONFIG_WIFI_DISPLAY */ |
| 2199 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2200 | /* |
| 2201 | * (Re)Association Request - P2P IE |
| 2202 | * P2P Capability attribute (shall be present) |
| 2203 | * Extended Listen Timing (may be present) |
| 2204 | * P2P Device Info attribute (shall be present) |
| 2205 | */ |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 2206 | tmp = wpabuf_alloc(200 + extra); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2207 | if (tmp == NULL) |
| 2208 | return -1; |
| 2209 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 2210 | #ifdef CONFIG_WIFI_DISPLAY |
| 2211 | if (p2p->wfd_ie_assoc_req) |
| 2212 | wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req); |
| 2213 | #endif /* CONFIG_WIFI_DISPLAY */ |
| 2214 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2215 | peer = bssid ? p2p_get_device(p2p, bssid) : NULL; |
| 2216 | |
| 2217 | lpos = p2p_buf_add_ie_hdr(tmp); |
| 2218 | p2p_buf_add_capability(tmp, p2p->dev_capab, 0); |
| 2219 | if (p2p->ext_listen_interval) |
| 2220 | p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period, |
| 2221 | p2p->ext_listen_interval); |
| 2222 | p2p_buf_add_device_info(tmp, p2p, peer); |
| 2223 | p2p_buf_update_ie_hdr(tmp, lpos); |
| 2224 | |
| 2225 | tmplen = wpabuf_len(tmp); |
| 2226 | if (tmplen > len) |
| 2227 | res = -1; |
| 2228 | else { |
| 2229 | os_memcpy(buf, wpabuf_head(tmp), tmplen); |
| 2230 | res = tmplen; |
| 2231 | } |
| 2232 | wpabuf_free(tmp); |
| 2233 | |
| 2234 | return res; |
| 2235 | } |
| 2236 | |
| 2237 | |
| 2238 | int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end) |
| 2239 | { |
| 2240 | struct wpabuf *p2p_ie; |
| 2241 | int ret; |
| 2242 | |
| 2243 | p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE); |
| 2244 | if (p2p_ie == NULL) |
| 2245 | return 0; |
| 2246 | |
| 2247 | ret = p2p_attr_text(p2p_ie, buf, end); |
| 2248 | wpabuf_free(p2p_ie); |
| 2249 | return ret; |
| 2250 | } |
| 2251 | |
| 2252 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2253 | int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr) |
| 2254 | { |
| 2255 | struct p2p_message msg; |
| 2256 | |
| 2257 | os_memset(&msg, 0, sizeof(msg)); |
| 2258 | if (p2p_parse_p2p_ie(p2p_ie, &msg)) |
| 2259 | return -1; |
| 2260 | |
| 2261 | if (msg.p2p_device_addr) { |
| 2262 | os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN); |
| 2263 | return 0; |
| 2264 | } else if (msg.device_id) { |
| 2265 | os_memcpy(dev_addr, msg.device_id, ETH_ALEN); |
| 2266 | return 0; |
| 2267 | } |
| 2268 | return -1; |
| 2269 | } |
| 2270 | |
| 2271 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2272 | int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr) |
| 2273 | { |
| 2274 | struct wpabuf *p2p_ie; |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2275 | int ret; |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2276 | |
| 2277 | p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, |
| 2278 | P2P_IE_VENDOR_TYPE); |
| 2279 | if (p2p_ie == NULL) |
| 2280 | return -1; |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2281 | ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr); |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2282 | wpabuf_free(p2p_ie); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2283 | return ret; |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2284 | } |
| 2285 | |
| 2286 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2287 | static void p2p_clear_go_neg(struct p2p_data *p2p) |
| 2288 | { |
| 2289 | p2p->go_neg_peer = NULL; |
| 2290 | p2p_clear_timeout(p2p); |
| 2291 | p2p_set_state(p2p, P2P_IDLE); |
| 2292 | } |
| 2293 | |
| 2294 | |
| 2295 | void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr) |
| 2296 | { |
| 2297 | if (p2p->go_neg_peer == NULL) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2298 | p2p_dbg(p2p, "No pending Group Formation - ignore WPS registration success notification"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2299 | return; /* No pending Group Formation */ |
| 2300 | } |
| 2301 | |
| 2302 | if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) != |
| 2303 | 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2304 | p2p_dbg(p2p, "Ignore WPS registration success notification for " |
| 2305 | MACSTR " (GO Negotiation peer " MACSTR ")", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2306 | MAC2STR(mac_addr), |
| 2307 | MAC2STR(p2p->go_neg_peer->intended_addr)); |
| 2308 | return; /* Ignore unexpected peer address */ |
| 2309 | } |
| 2310 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2311 | p2p_dbg(p2p, "Group Formation completed successfully with " MACSTR, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2312 | MAC2STR(mac_addr)); |
| 2313 | |
| 2314 | p2p_clear_go_neg(p2p); |
| 2315 | } |
| 2316 | |
| 2317 | |
| 2318 | void p2p_group_formation_failed(struct p2p_data *p2p) |
| 2319 | { |
| 2320 | if (p2p->go_neg_peer == NULL) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2321 | p2p_dbg(p2p, "No pending Group Formation - ignore group formation failure notification"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2322 | return; /* No pending Group Formation */ |
| 2323 | } |
| 2324 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2325 | p2p_dbg(p2p, "Group Formation failed with " MACSTR, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2326 | MAC2STR(p2p->go_neg_peer->intended_addr)); |
| 2327 | |
| 2328 | p2p_clear_go_neg(p2p); |
| 2329 | } |
| 2330 | |
| 2331 | |
| 2332 | struct p2p_data * p2p_init(const struct p2p_config *cfg) |
| 2333 | { |
| 2334 | struct p2p_data *p2p; |
| 2335 | |
| 2336 | if (cfg->max_peers < 1) |
| 2337 | return NULL; |
| 2338 | |
| 2339 | p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg)); |
| 2340 | if (p2p == NULL) |
| 2341 | return NULL; |
| 2342 | p2p->cfg = (struct p2p_config *) (p2p + 1); |
| 2343 | os_memcpy(p2p->cfg, cfg, sizeof(*cfg)); |
| 2344 | if (cfg->dev_name) |
| 2345 | p2p->cfg->dev_name = os_strdup(cfg->dev_name); |
| 2346 | if (cfg->manufacturer) |
| 2347 | p2p->cfg->manufacturer = os_strdup(cfg->manufacturer); |
| 2348 | if (cfg->model_name) |
| 2349 | p2p->cfg->model_name = os_strdup(cfg->model_name); |
| 2350 | if (cfg->model_number) |
| 2351 | p2p->cfg->model_number = os_strdup(cfg->model_number); |
| 2352 | if (cfg->serial_number) |
| 2353 | p2p->cfg->serial_number = os_strdup(cfg->serial_number); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2354 | if (cfg->pref_chan) { |
| 2355 | p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan * |
| 2356 | sizeof(struct p2p_channel)); |
| 2357 | if (p2p->cfg->pref_chan) { |
| 2358 | os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan, |
| 2359 | cfg->num_pref_chan * |
| 2360 | sizeof(struct p2p_channel)); |
| 2361 | } else |
| 2362 | p2p->cfg->num_pref_chan = 0; |
| 2363 | } |
| 2364 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2365 | p2p->min_disc_int = 1; |
| 2366 | p2p->max_disc_int = 3; |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 2367 | p2p->max_disc_tu = -1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2368 | |
| 2369 | os_get_random(&p2p->next_tie_breaker, 1); |
| 2370 | p2p->next_tie_breaker &= 0x01; |
| 2371 | if (cfg->sd_request) |
| 2372 | p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY; |
| 2373 | p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE; |
| 2374 | if (cfg->concurrent_operations) |
| 2375 | p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER; |
| 2376 | p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY; |
| 2377 | |
| 2378 | dl_list_init(&p2p->devices); |
| 2379 | |
| 2380 | eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0, |
| 2381 | p2p_expiration_timeout, p2p, NULL); |
| 2382 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 2383 | p2p->go_timeout = 100; |
| 2384 | p2p->client_timeout = 20; |
| 2385 | |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 2386 | p2p_dbg(p2p, "initialized"); |
| 2387 | p2p_channels_dump(p2p, "channels", &p2p->cfg->channels); |
| 2388 | p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels); |
| 2389 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2390 | return p2p; |
| 2391 | } |
| 2392 | |
| 2393 | |
| 2394 | void p2p_deinit(struct p2p_data *p2p) |
| 2395 | { |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 2396 | #ifdef CONFIG_WIFI_DISPLAY |
| 2397 | wpabuf_free(p2p->wfd_ie_beacon); |
| 2398 | wpabuf_free(p2p->wfd_ie_probe_req); |
| 2399 | wpabuf_free(p2p->wfd_ie_probe_resp); |
| 2400 | wpabuf_free(p2p->wfd_ie_assoc_req); |
| 2401 | wpabuf_free(p2p->wfd_ie_invitation); |
| 2402 | wpabuf_free(p2p->wfd_ie_prov_disc_req); |
| 2403 | wpabuf_free(p2p->wfd_ie_prov_disc_resp); |
| 2404 | wpabuf_free(p2p->wfd_ie_go_neg); |
| 2405 | wpabuf_free(p2p->wfd_dev_info); |
| 2406 | wpabuf_free(p2p->wfd_assoc_bssid); |
| 2407 | wpabuf_free(p2p->wfd_coupled_sink_info); |
| 2408 | #endif /* CONFIG_WIFI_DISPLAY */ |
| 2409 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2410 | eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL); |
| 2411 | eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL); |
| 2412 | eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL); |
Dmitry Shmidt | 9cdf1b9 | 2013-02-27 12:58:50 -0800 | [diff] [blame] | 2413 | eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2414 | p2p_flush(p2p); |
| 2415 | p2p_free_req_dev_types(p2p); |
| 2416 | os_free(p2p->cfg->dev_name); |
| 2417 | os_free(p2p->cfg->manufacturer); |
| 2418 | os_free(p2p->cfg->model_name); |
| 2419 | os_free(p2p->cfg->model_number); |
| 2420 | os_free(p2p->cfg->serial_number); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2421 | os_free(p2p->cfg->pref_chan); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2422 | os_free(p2p->groups); |
| 2423 | wpabuf_free(p2p->sd_resp); |
| 2424 | os_free(p2p->after_scan_tx); |
| 2425 | p2p_remove_wps_vendor_extensions(p2p); |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 2426 | os_free(p2p->no_go_freq.range); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2427 | os_free(p2p); |
| 2428 | } |
| 2429 | |
| 2430 | |
| 2431 | void p2p_flush(struct p2p_data *p2p) |
| 2432 | { |
| 2433 | struct p2p_device *dev, *prev; |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2434 | p2p_stop_find(p2p); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2435 | dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device, |
| 2436 | list) { |
| 2437 | dl_list_del(&dev->list); |
| 2438 | p2p_device_free(p2p, dev); |
| 2439 | } |
| 2440 | p2p_free_sd_queries(p2p); |
| 2441 | os_free(p2p->after_scan_tx); |
| 2442 | p2p->after_scan_tx = NULL; |
| 2443 | } |
| 2444 | |
| 2445 | |
| 2446 | int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr) |
| 2447 | { |
| 2448 | struct p2p_device *dev; |
| 2449 | |
| 2450 | dev = p2p_get_device(p2p, addr); |
| 2451 | if (dev == NULL) |
| 2452 | return -1; |
| 2453 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2454 | p2p_dbg(p2p, "Unauthorizing " MACSTR, MAC2STR(addr)); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2455 | |
| 2456 | if (p2p->go_neg_peer == dev) |
| 2457 | p2p->go_neg_peer = NULL; |
| 2458 | |
| 2459 | dev->wps_method = WPS_NOT_READY; |
| 2460 | dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE; |
| 2461 | dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM; |
| 2462 | |
| 2463 | /* Check if after_scan_tx is for this peer. If so free it */ |
| 2464 | if (p2p->after_scan_tx && |
| 2465 | os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) { |
| 2466 | os_free(p2p->after_scan_tx); |
| 2467 | p2p->after_scan_tx = NULL; |
| 2468 | } |
| 2469 | |
| 2470 | return 0; |
| 2471 | } |
| 2472 | |
| 2473 | |
| 2474 | int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name) |
| 2475 | { |
| 2476 | os_free(p2p->cfg->dev_name); |
| 2477 | if (dev_name) { |
| 2478 | p2p->cfg->dev_name = os_strdup(dev_name); |
| 2479 | if (p2p->cfg->dev_name == NULL) |
| 2480 | return -1; |
| 2481 | } else |
| 2482 | p2p->cfg->dev_name = NULL; |
| 2483 | return 0; |
| 2484 | } |
| 2485 | |
| 2486 | |
| 2487 | int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer) |
| 2488 | { |
| 2489 | os_free(p2p->cfg->manufacturer); |
| 2490 | p2p->cfg->manufacturer = NULL; |
| 2491 | if (manufacturer) { |
| 2492 | p2p->cfg->manufacturer = os_strdup(manufacturer); |
| 2493 | if (p2p->cfg->manufacturer == NULL) |
| 2494 | return -1; |
| 2495 | } |
| 2496 | |
| 2497 | return 0; |
| 2498 | } |
| 2499 | |
| 2500 | |
| 2501 | int p2p_set_model_name(struct p2p_data *p2p, const char *model_name) |
| 2502 | { |
| 2503 | os_free(p2p->cfg->model_name); |
| 2504 | p2p->cfg->model_name = NULL; |
| 2505 | if (model_name) { |
| 2506 | p2p->cfg->model_name = os_strdup(model_name); |
| 2507 | if (p2p->cfg->model_name == NULL) |
| 2508 | return -1; |
| 2509 | } |
| 2510 | |
| 2511 | return 0; |
| 2512 | } |
| 2513 | |
| 2514 | |
| 2515 | int p2p_set_model_number(struct p2p_data *p2p, const char *model_number) |
| 2516 | { |
| 2517 | os_free(p2p->cfg->model_number); |
| 2518 | p2p->cfg->model_number = NULL; |
| 2519 | if (model_number) { |
| 2520 | p2p->cfg->model_number = os_strdup(model_number); |
| 2521 | if (p2p->cfg->model_number == NULL) |
| 2522 | return -1; |
| 2523 | } |
| 2524 | |
| 2525 | return 0; |
| 2526 | } |
| 2527 | |
| 2528 | |
| 2529 | int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number) |
| 2530 | { |
| 2531 | os_free(p2p->cfg->serial_number); |
| 2532 | p2p->cfg->serial_number = NULL; |
| 2533 | if (serial_number) { |
| 2534 | p2p->cfg->serial_number = os_strdup(serial_number); |
| 2535 | if (p2p->cfg->serial_number == NULL) |
| 2536 | return -1; |
| 2537 | } |
| 2538 | |
| 2539 | return 0; |
| 2540 | } |
| 2541 | |
| 2542 | |
| 2543 | void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods) |
| 2544 | { |
| 2545 | p2p->cfg->config_methods = config_methods; |
| 2546 | } |
| 2547 | |
| 2548 | |
| 2549 | void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid) |
| 2550 | { |
| 2551 | os_memcpy(p2p->cfg->uuid, uuid, 16); |
| 2552 | } |
| 2553 | |
| 2554 | |
| 2555 | int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type) |
| 2556 | { |
| 2557 | os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8); |
| 2558 | return 0; |
| 2559 | } |
| 2560 | |
| 2561 | |
| 2562 | int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8], |
| 2563 | size_t num_dev_types) |
| 2564 | { |
| 2565 | if (num_dev_types > P2P_SEC_DEVICE_TYPES) |
| 2566 | num_dev_types = P2P_SEC_DEVICE_TYPES; |
| 2567 | p2p->cfg->num_sec_dev_types = num_dev_types; |
| 2568 | os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8); |
| 2569 | return 0; |
| 2570 | } |
| 2571 | |
| 2572 | |
| 2573 | void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p) |
| 2574 | { |
| 2575 | int i; |
| 2576 | |
| 2577 | for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) { |
| 2578 | wpabuf_free(p2p->wps_vendor_ext[i]); |
| 2579 | p2p->wps_vendor_ext[i] = NULL; |
| 2580 | } |
| 2581 | } |
| 2582 | |
| 2583 | |
| 2584 | int p2p_add_wps_vendor_extension(struct p2p_data *p2p, |
| 2585 | const struct wpabuf *vendor_ext) |
| 2586 | { |
| 2587 | int i; |
| 2588 | |
| 2589 | if (vendor_ext == NULL) |
| 2590 | return -1; |
| 2591 | |
| 2592 | for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) { |
| 2593 | if (p2p->wps_vendor_ext[i] == NULL) |
| 2594 | break; |
| 2595 | } |
| 2596 | if (i >= P2P_MAX_WPS_VENDOR_EXT) |
| 2597 | return -1; |
| 2598 | |
| 2599 | p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext); |
| 2600 | if (p2p->wps_vendor_ext[i] == NULL) |
| 2601 | return -1; |
| 2602 | |
| 2603 | return 0; |
| 2604 | } |
| 2605 | |
| 2606 | |
| 2607 | int p2p_set_country(struct p2p_data *p2p, const char *country) |
| 2608 | { |
| 2609 | os_memcpy(p2p->cfg->country, country, 3); |
| 2610 | return 0; |
| 2611 | } |
| 2612 | |
| 2613 | |
| 2614 | void p2p_continue_find(struct p2p_data *p2p) |
| 2615 | { |
| 2616 | struct p2p_device *dev; |
| 2617 | p2p_set_state(p2p, P2P_SEARCH); |
| 2618 | dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) { |
| 2619 | if (dev->flags & P2P_DEV_SD_SCHEDULE) { |
| 2620 | if (p2p_start_sd(p2p, dev) == 0) |
| 2621 | return; |
| 2622 | else |
| 2623 | break; |
| 2624 | } else if (dev->req_config_methods && |
| 2625 | !(dev->flags & P2P_DEV_PD_FOR_JOIN)) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2626 | p2p_dbg(p2p, "Send pending Provision Discovery Request to " |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2627 | MACSTR " (config methods 0x%x)", |
| 2628 | MAC2STR(dev->info.p2p_device_addr), |
| 2629 | dev->req_config_methods); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2630 | if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2631 | return; |
| 2632 | } |
| 2633 | } |
| 2634 | |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 2635 | p2p_listen_in_find(p2p, 1); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2636 | } |
| 2637 | |
| 2638 | |
| 2639 | static void p2p_sd_cb(struct p2p_data *p2p, int success) |
| 2640 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2641 | p2p_dbg(p2p, "Service Discovery Query TX callback: success=%d", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2642 | success); |
| 2643 | p2p->pending_action_state = P2P_NO_PENDING_ACTION; |
| 2644 | |
| 2645 | if (!success) { |
| 2646 | if (p2p->sd_peer) { |
| 2647 | p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE; |
| 2648 | p2p->sd_peer = NULL; |
| 2649 | } |
| 2650 | p2p_continue_find(p2p); |
| 2651 | return; |
| 2652 | } |
| 2653 | |
| 2654 | if (p2p->sd_peer == NULL) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2655 | p2p_dbg(p2p, "No SD peer entry known"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2656 | p2p_continue_find(p2p); |
| 2657 | return; |
| 2658 | } |
| 2659 | |
| 2660 | /* Wait for response from the peer */ |
| 2661 | p2p_set_state(p2p, P2P_SD_DURING_FIND); |
| 2662 | p2p_set_timeout(p2p, 0, 200000); |
| 2663 | } |
| 2664 | |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2665 | |
| 2666 | /** |
| 2667 | * p2p_retry_pd - Retry any pending provision disc requests in IDLE state |
| 2668 | * @p2p: P2P module context from p2p_init() |
| 2669 | */ |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2670 | static void p2p_retry_pd(struct p2p_data *p2p) |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2671 | { |
| 2672 | struct p2p_device *dev; |
| 2673 | |
| 2674 | if (p2p->state != P2P_IDLE) |
| 2675 | return; |
| 2676 | |
| 2677 | /* |
| 2678 | * Retry the prov disc req attempt only for the peer that the user had |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 2679 | * requested. |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2680 | */ |
| 2681 | |
| 2682 | dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) { |
| 2683 | if (os_memcmp(p2p->pending_pd_devaddr, |
| 2684 | dev->info.p2p_device_addr, ETH_ALEN) != 0) |
| 2685 | continue; |
| 2686 | if (!dev->req_config_methods) |
| 2687 | continue; |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2688 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2689 | p2p_dbg(p2p, "Send pending Provision Discovery Request to " |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2690 | MACSTR " (config methods 0x%x)", |
| 2691 | MAC2STR(dev->info.p2p_device_addr), |
| 2692 | dev->req_config_methods); |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 2693 | p2p_send_prov_disc_req(p2p, dev, |
Dmitry Shmidt | 051af73 | 2013-10-22 13:52:46 -0700 | [diff] [blame] | 2694 | dev->flags & P2P_DEV_PD_FOR_JOIN, |
| 2695 | p2p->pd_force_freq); |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2696 | return; |
| 2697 | } |
| 2698 | } |
| 2699 | |
| 2700 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2701 | static void p2p_prov_disc_cb(struct p2p_data *p2p, int success) |
| 2702 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2703 | p2p_dbg(p2p, "Provision Discovery Request TX callback: success=%d", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2704 | success); |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2705 | |
| 2706 | /* |
| 2707 | * Postpone resetting the pending action state till after we actually |
| 2708 | * time out. This allows us to take some action like notifying any |
| 2709 | * interested parties about no response to the request. |
| 2710 | * |
| 2711 | * When the timer (below) goes off we check in IDLE, SEARCH, or |
| 2712 | * LISTEN_ONLY state, which are the only allowed states to issue a PD |
| 2713 | * requests in, if this was still pending and then raise notification. |
| 2714 | */ |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2715 | |
| 2716 | if (!success) { |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2717 | p2p->pending_action_state = P2P_NO_PENDING_ACTION; |
| 2718 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 2719 | if (p2p->user_initiated_pd && |
| 2720 | (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY)) |
| 2721 | { |
| 2722 | /* Retry request from timeout to avoid busy loops */ |
| 2723 | p2p->pending_action_state = P2P_PENDING_PD; |
| 2724 | p2p_set_timeout(p2p, 0, 50000); |
| 2725 | } else if (p2p->state != P2P_IDLE) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2726 | p2p_continue_find(p2p); |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2727 | else if (p2p->user_initiated_pd) { |
| 2728 | p2p->pending_action_state = P2P_PENDING_PD; |
| 2729 | p2p_set_timeout(p2p, 0, 300000); |
| 2730 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2731 | return; |
| 2732 | } |
| 2733 | |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2734 | /* |
| 2735 | * This postponing, of resetting pending_action_state, needs to be |
| 2736 | * done only for user initiated PD requests and not internal ones. |
| 2737 | */ |
| 2738 | if (p2p->user_initiated_pd) |
| 2739 | p2p->pending_action_state = P2P_PENDING_PD; |
| 2740 | else |
| 2741 | p2p->pending_action_state = P2P_NO_PENDING_ACTION; |
| 2742 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2743 | /* Wait for response from the peer */ |
| 2744 | if (p2p->state == P2P_SEARCH) |
| 2745 | p2p_set_state(p2p, P2P_PD_DURING_FIND); |
| 2746 | p2p_set_timeout(p2p, 0, 200000); |
| 2747 | } |
| 2748 | |
| 2749 | |
| 2750 | int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq, |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 2751 | struct os_reltime *rx_time, int level, const u8 *ies, |
Dmitry Shmidt | a54fa5f | 2013-01-15 13:53:35 -0800 | [diff] [blame] | 2752 | size_t ies_len) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2753 | { |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 2754 | if (os_reltime_before(rx_time, &p2p->find_start)) { |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 2755 | /* |
| 2756 | * The driver may have cached (e.g., in cfg80211 BSS table) the |
| 2757 | * scan results for relatively long time. To avoid reporting |
| 2758 | * stale information, update P2P peers only based on results |
| 2759 | * that have based on frames received after the last p2p_find |
| 2760 | * operation was started. |
| 2761 | */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2762 | p2p_dbg(p2p, "Ignore old scan result for " MACSTR |
| 2763 | " (rx_time=%u.%06u)", |
Dmitry Shmidt | f862328 | 2013-02-20 14:34:59 -0800 | [diff] [blame] | 2764 | MAC2STR(bssid), (unsigned int) rx_time->sec, |
| 2765 | (unsigned int) rx_time->usec); |
| 2766 | return 0; |
| 2767 | } |
| 2768 | |
| 2769 | p2p_add_device(p2p, bssid, freq, rx_time, level, ies, ies_len, 1); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2770 | |
| 2771 | return 0; |
| 2772 | } |
| 2773 | |
| 2774 | |
| 2775 | void p2p_scan_res_handled(struct p2p_data *p2p) |
| 2776 | { |
| 2777 | if (!p2p->p2p_scan_running) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2778 | p2p_dbg(p2p, "p2p_scan was not running, but scan results received"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2779 | } |
| 2780 | p2p->p2p_scan_running = 0; |
| 2781 | eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL); |
| 2782 | |
| 2783 | if (p2p_run_after_scan(p2p)) |
| 2784 | return; |
| 2785 | if (p2p->state == P2P_SEARCH) |
| 2786 | p2p_continue_find(p2p); |
| 2787 | } |
| 2788 | |
| 2789 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2790 | void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2791 | { |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 2792 | u8 *len; |
| 2793 | |
| 2794 | #ifdef CONFIG_WIFI_DISPLAY |
| 2795 | if (p2p->wfd_ie_probe_req) |
| 2796 | wpabuf_put_buf(ies, p2p->wfd_ie_probe_req); |
| 2797 | #endif /* CONFIG_WIFI_DISPLAY */ |
| 2798 | |
| 2799 | len = p2p_buf_add_ie_hdr(ies); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2800 | p2p_buf_add_capability(ies, p2p->dev_capab & |
| 2801 | ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0); |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2802 | if (dev_id) |
| 2803 | p2p_buf_add_device_id(ies, dev_id); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2804 | if (p2p->cfg->reg_class && p2p->cfg->channel) |
| 2805 | p2p_buf_add_listen_channel(ies, p2p->cfg->country, |
| 2806 | p2p->cfg->reg_class, |
| 2807 | p2p->cfg->channel); |
| 2808 | if (p2p->ext_listen_interval) |
| 2809 | p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period, |
| 2810 | p2p->ext_listen_interval); |
| 2811 | /* TODO: p2p_buf_add_operating_channel() if GO */ |
| 2812 | p2p_buf_update_ie_hdr(ies, len); |
| 2813 | } |
| 2814 | |
| 2815 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2816 | size_t p2p_scan_ie_buf_len(struct p2p_data *p2p) |
| 2817 | { |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 2818 | size_t len = 100; |
| 2819 | |
| 2820 | #ifdef CONFIG_WIFI_DISPLAY |
| 2821 | if (p2p && p2p->wfd_ie_probe_req) |
| 2822 | len += wpabuf_len(p2p->wfd_ie_probe_req); |
| 2823 | #endif /* CONFIG_WIFI_DISPLAY */ |
| 2824 | |
| 2825 | return len; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2826 | } |
| 2827 | |
| 2828 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2829 | int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end) |
| 2830 | { |
| 2831 | return p2p_attr_text(p2p_ie, buf, end); |
| 2832 | } |
| 2833 | |
| 2834 | |
| 2835 | static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success) |
| 2836 | { |
| 2837 | struct p2p_device *dev = p2p->go_neg_peer; |
Dmitry Shmidt | 8c65289 | 2013-03-01 10:14:01 -0800 | [diff] [blame] | 2838 | int timeout; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2839 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2840 | p2p_dbg(p2p, "GO Negotiation Request TX callback: success=%d", success); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2841 | |
| 2842 | if (dev == NULL) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2843 | p2p_dbg(p2p, "No pending GO Negotiation"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2844 | return; |
| 2845 | } |
| 2846 | |
| 2847 | if (success) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2848 | if (dev->flags & P2P_DEV_USER_REJECTED) { |
| 2849 | p2p_set_state(p2p, P2P_IDLE); |
| 2850 | return; |
| 2851 | } |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 2852 | } else if (dev->go_neg_req_sent) { |
| 2853 | /* Cancel the increment from p2p_connect_send() on failure */ |
Dmitry Shmidt | 98f9e76 | 2012-05-30 11:18:46 -0700 | [diff] [blame] | 2854 | dev->go_neg_req_sent--; |
| 2855 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2856 | |
| 2857 | if (!success && |
| 2858 | (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) && |
| 2859 | !is_zero_ether_addr(dev->member_in_go_dev)) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2860 | p2p_dbg(p2p, "Peer " MACSTR " did not acknowledge request - try to use device discoverability through its GO", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2861 | MAC2STR(dev->info.p2p_device_addr)); |
| 2862 | p2p->cfg->send_action_done(p2p->cfg->cb_ctx); |
| 2863 | p2p_send_dev_disc_req(p2p, dev); |
| 2864 | return; |
| 2865 | } |
| 2866 | |
| 2867 | /* |
| 2868 | * Use P2P find, if needed, to find the other device from its listen |
| 2869 | * channel. |
| 2870 | */ |
| 2871 | p2p_set_state(p2p, P2P_CONNECT); |
Dmitry Shmidt | 8c65289 | 2013-03-01 10:14:01 -0800 | [diff] [blame] | 2872 | timeout = success ? 500000 : 100000; |
| 2873 | if (!success && p2p->go_neg_peer && |
| 2874 | (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE)) { |
| 2875 | unsigned int r; |
| 2876 | /* |
| 2877 | * Peer is expected to wait our response and we will skip the |
| 2878 | * listen phase. Add some randomness to the wait time here to |
| 2879 | * make it less likely to hit cases where we could end up in |
| 2880 | * sync with peer not listening. |
| 2881 | */ |
| 2882 | os_get_random((u8 *) &r, sizeof(r)); |
| 2883 | timeout += r % 100000; |
| 2884 | } |
| 2885 | p2p_set_timeout(p2p, 0, timeout); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2886 | } |
| 2887 | |
| 2888 | |
| 2889 | static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success) |
| 2890 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2891 | p2p_dbg(p2p, "GO Negotiation Response TX callback: success=%d", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2892 | success); |
| 2893 | if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2894 | p2p_dbg(p2p, "Ignore TX callback event - GO Negotiation is not running anymore"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2895 | return; |
| 2896 | } |
| 2897 | p2p_set_state(p2p, P2P_CONNECT); |
Dmitry Shmidt | 8c65289 | 2013-03-01 10:14:01 -0800 | [diff] [blame] | 2898 | p2p_set_timeout(p2p, 0, 500000); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2899 | } |
| 2900 | |
| 2901 | |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 2902 | static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success, |
| 2903 | const u8 *addr) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2904 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2905 | p2p_dbg(p2p, "GO Negotiation Response (failure) TX callback: success=%d", success); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2906 | if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) { |
| 2907 | p2p_go_neg_failed(p2p, p2p->go_neg_peer, |
| 2908 | p2p->go_neg_peer->status); |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 2909 | } else if (success) { |
| 2910 | struct p2p_device *dev; |
| 2911 | dev = p2p_get_device(p2p, addr); |
| 2912 | if (dev && |
| 2913 | dev->status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) |
| 2914 | dev->flags |= P2P_DEV_PEER_WAITING_RESPONSE; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2915 | } |
| 2916 | } |
| 2917 | |
| 2918 | |
| 2919 | static void p2p_go_neg_conf_cb(struct p2p_data *p2p, |
| 2920 | enum p2p_send_action_result result) |
| 2921 | { |
| 2922 | struct p2p_device *dev; |
| 2923 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2924 | p2p_dbg(p2p, "GO Negotiation Confirm TX callback: result=%d", result); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2925 | p2p->cfg->send_action_done(p2p->cfg->cb_ctx); |
| 2926 | if (result == P2P_SEND_ACTION_FAILED) { |
| 2927 | p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1); |
| 2928 | return; |
| 2929 | } |
| 2930 | if (result == P2P_SEND_ACTION_NO_ACK) { |
| 2931 | /* |
| 2932 | * It looks like the TX status for GO Negotiation Confirm is |
| 2933 | * often showing failure even when the peer has actually |
| 2934 | * received the frame. Since the peer may change channels |
| 2935 | * immediately after having received the frame, we may not see |
| 2936 | * an Ack for retries, so just dropping a single frame may |
| 2937 | * trigger this. To allow the group formation to succeed if the |
| 2938 | * peer did indeed receive the frame, continue regardless of |
| 2939 | * the TX status. |
| 2940 | */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2941 | p2p_dbg(p2p, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2942 | } |
| 2943 | |
| 2944 | dev = p2p->go_neg_peer; |
| 2945 | if (dev == NULL) |
| 2946 | return; |
| 2947 | |
| 2948 | p2p_go_complete(p2p, dev); |
| 2949 | } |
| 2950 | |
| 2951 | |
| 2952 | void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst, |
| 2953 | const u8 *src, const u8 *bssid, |
| 2954 | enum p2p_send_action_result result) |
| 2955 | { |
| 2956 | enum p2p_pending_action_state state; |
| 2957 | int success; |
| 2958 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2959 | p2p_dbg(p2p, "Action frame TX callback (state=%d freq=%u dst=" MACSTR |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2960 | " src=" MACSTR " bssid=" MACSTR " result=%d", |
| 2961 | p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src), |
| 2962 | MAC2STR(bssid), result); |
| 2963 | success = result == P2P_SEND_ACTION_SUCCESS; |
| 2964 | state = p2p->pending_action_state; |
| 2965 | p2p->pending_action_state = P2P_NO_PENDING_ACTION; |
| 2966 | switch (state) { |
| 2967 | case P2P_NO_PENDING_ACTION: |
Dmitry Shmidt | 8da800a | 2013-04-24 12:57:01 -0700 | [diff] [blame] | 2968 | if (p2p->after_scan_tx_in_progress) { |
| 2969 | p2p->after_scan_tx_in_progress = 0; |
| 2970 | if (p2p->start_after_scan != P2P_AFTER_SCAN_NOTHING && |
| 2971 | p2p_run_after_scan(p2p)) |
| 2972 | break; |
| 2973 | if (p2p->state == P2P_SEARCH) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 2974 | p2p_dbg(p2p, "Continue find after after_scan_tx completion"); |
Dmitry Shmidt | 8da800a | 2013-04-24 12:57:01 -0700 | [diff] [blame] | 2975 | p2p_continue_find(p2p); |
| 2976 | } |
| 2977 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2978 | break; |
| 2979 | case P2P_PENDING_GO_NEG_REQUEST: |
| 2980 | p2p_go_neg_req_cb(p2p, success); |
| 2981 | break; |
| 2982 | case P2P_PENDING_GO_NEG_RESPONSE: |
| 2983 | p2p_go_neg_resp_cb(p2p, success); |
| 2984 | break; |
| 2985 | case P2P_PENDING_GO_NEG_RESPONSE_FAILURE: |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 2986 | p2p_go_neg_resp_failure_cb(p2p, success, dst); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2987 | break; |
| 2988 | case P2P_PENDING_GO_NEG_CONFIRM: |
| 2989 | p2p_go_neg_conf_cb(p2p, result); |
| 2990 | break; |
| 2991 | case P2P_PENDING_SD: |
| 2992 | p2p_sd_cb(p2p, success); |
| 2993 | break; |
| 2994 | case P2P_PENDING_PD: |
| 2995 | p2p_prov_disc_cb(p2p, success); |
| 2996 | break; |
| 2997 | case P2P_PENDING_INVITATION_REQUEST: |
| 2998 | p2p_invitation_req_cb(p2p, success); |
| 2999 | break; |
| 3000 | case P2P_PENDING_INVITATION_RESPONSE: |
| 3001 | p2p_invitation_resp_cb(p2p, success); |
| 3002 | break; |
| 3003 | case P2P_PENDING_DEV_DISC_REQUEST: |
| 3004 | p2p_dev_disc_req_cb(p2p, success); |
| 3005 | break; |
| 3006 | case P2P_PENDING_DEV_DISC_RESPONSE: |
| 3007 | p2p_dev_disc_resp_cb(p2p, success); |
| 3008 | break; |
| 3009 | case P2P_PENDING_GO_DISC_REQ: |
| 3010 | p2p_go_disc_req_cb(p2p, success); |
| 3011 | break; |
| 3012 | } |
Dmitry Shmidt | 8da800a | 2013-04-24 12:57:01 -0700 | [diff] [blame] | 3013 | |
| 3014 | p2p->after_scan_tx_in_progress = 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3015 | } |
| 3016 | |
| 3017 | |
| 3018 | void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq, |
| 3019 | unsigned int duration) |
| 3020 | { |
| 3021 | if (freq == p2p->pending_client_disc_freq) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3022 | p2p_dbg(p2p, "Client discoverability remain-awake completed"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3023 | p2p->pending_client_disc_freq = 0; |
| 3024 | return; |
| 3025 | } |
| 3026 | |
| 3027 | if (freq != p2p->pending_listen_freq) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3028 | p2p_dbg(p2p, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3029 | freq, duration, p2p->pending_listen_freq); |
| 3030 | return; |
| 3031 | } |
| 3032 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3033 | p2p_dbg(p2p, "Starting Listen timeout(%u,%u) on freq=%u based on callback", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3034 | p2p->pending_listen_sec, p2p->pending_listen_usec, |
| 3035 | p2p->pending_listen_freq); |
| 3036 | p2p->in_listen = 1; |
| 3037 | p2p->drv_in_listen = freq; |
| 3038 | if (p2p->pending_listen_sec || p2p->pending_listen_usec) { |
| 3039 | /* |
| 3040 | * Add 20 msec extra wait to avoid race condition with driver |
| 3041 | * remain-on-channel end event, i.e., give driver more time to |
| 3042 | * complete the operation before our timeout expires. |
| 3043 | */ |
| 3044 | p2p_set_timeout(p2p, p2p->pending_listen_sec, |
| 3045 | p2p->pending_listen_usec + 20000); |
| 3046 | } |
| 3047 | |
| 3048 | p2p->pending_listen_freq = 0; |
| 3049 | } |
| 3050 | |
| 3051 | |
| 3052 | int p2p_listen_end(struct p2p_data *p2p, unsigned int freq) |
| 3053 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3054 | p2p_dbg(p2p, "Driver ended Listen state (freq=%u)", freq); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3055 | p2p->drv_in_listen = 0; |
| 3056 | if (p2p->in_listen) |
| 3057 | return 0; /* Internal timeout will trigger the next step */ |
| 3058 | |
| 3059 | if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) { |
| 3060 | if (p2p->go_neg_peer->connect_reqs >= 120) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3061 | p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3062 | p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1); |
| 3063 | return 0; |
| 3064 | } |
| 3065 | |
| 3066 | p2p_set_state(p2p, P2P_CONNECT); |
| 3067 | p2p_connect_send(p2p, p2p->go_neg_peer); |
| 3068 | return 1; |
| 3069 | } else if (p2p->state == P2P_SEARCH) { |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 3070 | if (p2p->p2p_scan_running) { |
| 3071 | /* |
| 3072 | * Search is already in progress. This can happen if |
| 3073 | * an Action frame RX is reported immediately after |
| 3074 | * the end of a remain-on-channel operation and the |
| 3075 | * response frame to that is sent using an offchannel |
| 3076 | * operation while in p2p_find. Avoid an attempt to |
| 3077 | * restart a scan here. |
| 3078 | */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3079 | p2p_dbg(p2p, "p2p_scan already in progress - do not try to start a new one"); |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 3080 | return 1; |
| 3081 | } |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 3082 | if (p2p->pending_listen_freq) { |
| 3083 | /* |
| 3084 | * Better wait a bit if the driver is unable to start |
| 3085 | * offchannel operation for some reason. p2p_search() |
| 3086 | * will be started from internal timeout. |
| 3087 | */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3088 | p2p_dbg(p2p, "Listen operation did not seem to start - delay search phase to avoid busy loop"); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 3089 | p2p_set_timeout(p2p, 0, 100000); |
| 3090 | return 1; |
| 3091 | } |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 3092 | if (p2p->search_delay) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3093 | p2p_dbg(p2p, "Delay search operation by %u ms", |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 3094 | p2p->search_delay); |
| 3095 | p2p_set_timeout(p2p, p2p->search_delay / 1000, |
| 3096 | (p2p->search_delay % 1000) * 1000); |
| 3097 | return 1; |
| 3098 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3099 | p2p_search(p2p); |
| 3100 | return 1; |
| 3101 | } |
| 3102 | |
| 3103 | return 0; |
| 3104 | } |
| 3105 | |
| 3106 | |
| 3107 | static void p2p_timeout_connect(struct p2p_data *p2p) |
| 3108 | { |
| 3109 | p2p->cfg->send_action_done(p2p->cfg->cb_ctx); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 3110 | if (p2p->go_neg_peer && |
| 3111 | (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3112 | p2p_dbg(p2p, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed"); |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 3113 | p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1); |
| 3114 | return; |
| 3115 | } |
Dmitry Shmidt | 8c65289 | 2013-03-01 10:14:01 -0800 | [diff] [blame] | 3116 | if (p2p->go_neg_peer && |
| 3117 | (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE) && |
| 3118 | p2p->go_neg_peer->connect_reqs < 120) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3119 | p2p_dbg(p2p, "Peer expected to wait our response - skip listen"); |
Dmitry Shmidt | 8c65289 | 2013-03-01 10:14:01 -0800 | [diff] [blame] | 3120 | p2p_connect_send(p2p, p2p->go_neg_peer); |
| 3121 | return; |
| 3122 | } |
| 3123 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3124 | p2p_set_state(p2p, P2P_CONNECT_LISTEN); |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 3125 | p2p_listen_in_find(p2p, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3126 | } |
| 3127 | |
| 3128 | |
| 3129 | static void p2p_timeout_connect_listen(struct p2p_data *p2p) |
| 3130 | { |
| 3131 | if (p2p->go_neg_peer) { |
| 3132 | if (p2p->drv_in_listen) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3133 | p2p_dbg(p2p, "Driver is still in Listen state; wait for it to complete"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3134 | return; |
| 3135 | } |
| 3136 | |
| 3137 | if (p2p->go_neg_peer->connect_reqs >= 120) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3138 | p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3139 | p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1); |
| 3140 | return; |
| 3141 | } |
| 3142 | |
| 3143 | p2p_set_state(p2p, P2P_CONNECT); |
| 3144 | p2p_connect_send(p2p, p2p->go_neg_peer); |
| 3145 | } else |
| 3146 | p2p_set_state(p2p, P2P_IDLE); |
| 3147 | } |
| 3148 | |
| 3149 | |
| 3150 | static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p) |
| 3151 | { |
| 3152 | /* |
| 3153 | * TODO: could remain constantly in Listen state for some time if there |
| 3154 | * are no other concurrent uses for the radio. For now, go to listen |
| 3155 | * state once per second to give other uses a chance to use the radio. |
| 3156 | */ |
| 3157 | p2p_set_state(p2p, P2P_WAIT_PEER_IDLE); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3158 | p2p_set_timeout(p2p, 0, 500000); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3159 | } |
| 3160 | |
| 3161 | |
| 3162 | static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p) |
| 3163 | { |
| 3164 | struct p2p_device *dev = p2p->go_neg_peer; |
| 3165 | |
| 3166 | if (dev == NULL) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3167 | p2p_dbg(p2p, "Unknown GO Neg peer - stop GO Neg wait"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3168 | return; |
| 3169 | } |
| 3170 | |
| 3171 | dev->wait_count++; |
| 3172 | if (dev->wait_count >= 120) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3173 | p2p_dbg(p2p, "Timeout on waiting peer to become ready for GO Negotiation"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3174 | p2p_go_neg_failed(p2p, dev, -1); |
| 3175 | return; |
| 3176 | } |
| 3177 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3178 | p2p_dbg(p2p, "Go to Listen state while waiting for the peer to become ready for GO Negotiation"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3179 | p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT); |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 3180 | p2p_listen_in_find(p2p, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3181 | } |
| 3182 | |
| 3183 | |
| 3184 | static void p2p_timeout_sd_during_find(struct p2p_data *p2p) |
| 3185 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3186 | p2p_dbg(p2p, "Service Discovery Query timeout"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3187 | if (p2p->sd_peer) { |
| 3188 | p2p->cfg->send_action_done(p2p->cfg->cb_ctx); |
| 3189 | p2p->sd_peer->flags &= ~P2P_DEV_SD_SCHEDULE; |
| 3190 | p2p->sd_peer = NULL; |
| 3191 | } |
| 3192 | p2p_continue_find(p2p); |
| 3193 | } |
| 3194 | |
| 3195 | |
| 3196 | static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p) |
| 3197 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3198 | p2p_dbg(p2p, "Provision Discovery Request timeout"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3199 | p2p->cfg->send_action_done(p2p->cfg->cb_ctx); |
| 3200 | p2p_continue_find(p2p); |
| 3201 | } |
| 3202 | |
| 3203 | |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3204 | static void p2p_timeout_prov_disc_req(struct p2p_data *p2p) |
| 3205 | { |
| 3206 | p2p->pending_action_state = P2P_NO_PENDING_ACTION; |
| 3207 | |
| 3208 | /* |
| 3209 | * For user initiated PD requests that we have not gotten any responses |
| 3210 | * for while in IDLE state, we retry them a couple of times before |
| 3211 | * giving up. |
| 3212 | */ |
| 3213 | if (!p2p->user_initiated_pd) |
| 3214 | return; |
| 3215 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3216 | p2p_dbg(p2p, "User initiated Provision Discovery Request timeout"); |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3217 | |
| 3218 | if (p2p->pd_retries) { |
| 3219 | p2p->pd_retries--; |
| 3220 | p2p_retry_pd(p2p); |
| 3221 | } else { |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 3222 | struct p2p_device *dev; |
| 3223 | int for_join = 0; |
| 3224 | |
| 3225 | dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) { |
| 3226 | if (os_memcmp(p2p->pending_pd_devaddr, |
| 3227 | dev->info.p2p_device_addr, ETH_ALEN) != 0) |
| 3228 | continue; |
| 3229 | if (dev->req_config_methods && |
| 3230 | (dev->flags & P2P_DEV_PD_FOR_JOIN)) |
| 3231 | for_join = 1; |
| 3232 | } |
| 3233 | |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3234 | if (p2p->cfg->prov_disc_fail) |
| 3235 | p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx, |
| 3236 | p2p->pending_pd_devaddr, |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 3237 | for_join ? |
| 3238 | P2P_PROV_DISC_TIMEOUT_JOIN : |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3239 | P2P_PROV_DISC_TIMEOUT); |
| 3240 | p2p_reset_pending_pd(p2p); |
| 3241 | } |
| 3242 | } |
| 3243 | |
| 3244 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3245 | static void p2p_timeout_invite(struct p2p_data *p2p) |
| 3246 | { |
| 3247 | p2p->cfg->send_action_done(p2p->cfg->cb_ctx); |
| 3248 | p2p_set_state(p2p, P2P_INVITE_LISTEN); |
| 3249 | if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) { |
| 3250 | /* |
| 3251 | * Better remain on operating channel instead of listen channel |
| 3252 | * when running a group. |
| 3253 | */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3254 | p2p_dbg(p2p, "Inviting in active GO role - wait on operating channel"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3255 | p2p_set_timeout(p2p, 0, 100000); |
| 3256 | return; |
| 3257 | } |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 3258 | p2p_listen_in_find(p2p, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3259 | } |
| 3260 | |
| 3261 | |
| 3262 | static void p2p_timeout_invite_listen(struct p2p_data *p2p) |
| 3263 | { |
| 3264 | if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) { |
| 3265 | p2p_set_state(p2p, P2P_INVITE); |
| 3266 | p2p_invite_send(p2p, p2p->invite_peer, |
| 3267 | p2p->invite_go_dev_addr); |
| 3268 | } else { |
| 3269 | if (p2p->invite_peer) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3270 | p2p_dbg(p2p, "Invitation Request retry limit reached"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3271 | if (p2p->cfg->invitation_result) |
| 3272 | p2p->cfg->invitation_result( |
Dmitry Shmidt | 700a137 | 2013-03-15 14:14:44 -0700 | [diff] [blame] | 3273 | p2p->cfg->cb_ctx, -1, NULL, NULL, |
Dmitry Shmidt | e0e48dc | 2013-11-18 12:00:06 -0800 | [diff] [blame] | 3274 | p2p->invite_peer->info.p2p_device_addr, |
| 3275 | 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3276 | } |
| 3277 | p2p_set_state(p2p, P2P_IDLE); |
| 3278 | } |
| 3279 | } |
| 3280 | |
| 3281 | |
| 3282 | static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx) |
| 3283 | { |
| 3284 | struct p2p_data *p2p = eloop_ctx; |
| 3285 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3286 | p2p_dbg(p2p, "Timeout (state=%s)", p2p_state_txt(p2p->state)); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3287 | |
| 3288 | p2p->in_listen = 0; |
| 3289 | |
| 3290 | switch (p2p->state) { |
| 3291 | case P2P_IDLE: |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3292 | /* Check if we timed out waiting for PD req */ |
| 3293 | if (p2p->pending_action_state == P2P_PENDING_PD) |
| 3294 | p2p_timeout_prov_disc_req(p2p); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3295 | break; |
| 3296 | case P2P_SEARCH: |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3297 | /* Check if we timed out waiting for PD req */ |
| 3298 | if (p2p->pending_action_state == P2P_PENDING_PD) |
| 3299 | p2p_timeout_prov_disc_req(p2p); |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 3300 | if (p2p->search_delay && !p2p->in_search_delay) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3301 | p2p_dbg(p2p, "Delay search operation by %u ms", |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 3302 | p2p->search_delay); |
| 3303 | p2p->in_search_delay = 1; |
| 3304 | p2p_set_timeout(p2p, p2p->search_delay / 1000, |
| 3305 | (p2p->search_delay % 1000) * 1000); |
| 3306 | break; |
| 3307 | } |
| 3308 | p2p->in_search_delay = 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3309 | p2p_search(p2p); |
| 3310 | break; |
| 3311 | case P2P_CONNECT: |
| 3312 | p2p_timeout_connect(p2p); |
| 3313 | break; |
| 3314 | case P2P_CONNECT_LISTEN: |
| 3315 | p2p_timeout_connect_listen(p2p); |
| 3316 | break; |
| 3317 | case P2P_GO_NEG: |
| 3318 | break; |
| 3319 | case P2P_LISTEN_ONLY: |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3320 | /* Check if we timed out waiting for PD req */ |
| 3321 | if (p2p->pending_action_state == P2P_PENDING_PD) |
| 3322 | p2p_timeout_prov_disc_req(p2p); |
| 3323 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3324 | if (p2p->ext_listen_only) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3325 | p2p_dbg(p2p, "Extended Listen Timing - Listen State completed"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3326 | p2p->ext_listen_only = 0; |
| 3327 | p2p_set_state(p2p, P2P_IDLE); |
| 3328 | } |
| 3329 | break; |
| 3330 | case P2P_WAIT_PEER_CONNECT: |
| 3331 | p2p_timeout_wait_peer_connect(p2p); |
| 3332 | break; |
| 3333 | case P2P_WAIT_PEER_IDLE: |
| 3334 | p2p_timeout_wait_peer_idle(p2p); |
| 3335 | break; |
| 3336 | case P2P_SD_DURING_FIND: |
| 3337 | p2p_timeout_sd_during_find(p2p); |
| 3338 | break; |
| 3339 | case P2P_PROVISIONING: |
| 3340 | break; |
| 3341 | case P2P_PD_DURING_FIND: |
| 3342 | p2p_timeout_prov_disc_during_find(p2p); |
| 3343 | break; |
| 3344 | case P2P_INVITE: |
| 3345 | p2p_timeout_invite(p2p); |
| 3346 | break; |
| 3347 | case P2P_INVITE_LISTEN: |
| 3348 | p2p_timeout_invite_listen(p2p); |
| 3349 | break; |
| 3350 | } |
| 3351 | } |
| 3352 | |
| 3353 | |
| 3354 | int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr) |
| 3355 | { |
| 3356 | struct p2p_device *dev; |
| 3357 | |
| 3358 | dev = p2p_get_device(p2p, peer_addr); |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3359 | p2p_dbg(p2p, "Local request to reject connection attempts by peer " |
| 3360 | MACSTR, MAC2STR(peer_addr)); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3361 | if (dev == NULL) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3362 | p2p_dbg(p2p, "Peer " MACSTR " unknown", MAC2STR(peer_addr)); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3363 | return -1; |
| 3364 | } |
| 3365 | dev->status = P2P_SC_FAIL_REJECTED_BY_USER; |
| 3366 | dev->flags |= P2P_DEV_USER_REJECTED; |
| 3367 | return 0; |
| 3368 | } |
| 3369 | |
| 3370 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3371 | const char * p2p_wps_method_text(enum p2p_wps_method method) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3372 | { |
| 3373 | switch (method) { |
| 3374 | case WPS_NOT_READY: |
| 3375 | return "not-ready"; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3376 | case WPS_PIN_DISPLAY: |
| 3377 | return "Display"; |
| 3378 | case WPS_PIN_KEYPAD: |
| 3379 | return "Keypad"; |
| 3380 | case WPS_PBC: |
| 3381 | return "PBC"; |
| 3382 | } |
| 3383 | |
| 3384 | return "??"; |
| 3385 | } |
| 3386 | |
| 3387 | |
| 3388 | static const char * p2p_go_state_text(enum p2p_go_state go_state) |
| 3389 | { |
| 3390 | switch (go_state) { |
| 3391 | case UNKNOWN_GO: |
| 3392 | return "unknown"; |
| 3393 | case LOCAL_GO: |
| 3394 | return "local"; |
| 3395 | case REMOTE_GO: |
| 3396 | return "remote"; |
| 3397 | } |
| 3398 | |
| 3399 | return "??"; |
| 3400 | } |
| 3401 | |
| 3402 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3403 | const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p, |
| 3404 | const u8 *addr, int next) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3405 | { |
| 3406 | struct p2p_device *dev; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3407 | |
| 3408 | if (addr) |
| 3409 | dev = p2p_get_device(p2p, addr); |
| 3410 | else |
| 3411 | dev = dl_list_first(&p2p->devices, struct p2p_device, list); |
| 3412 | |
| 3413 | if (dev && next) { |
| 3414 | dev = dl_list_first(&dev->list, struct p2p_device, list); |
| 3415 | if (&dev->list == &p2p->devices) |
| 3416 | dev = NULL; |
| 3417 | } |
| 3418 | |
| 3419 | if (dev == NULL) |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3420 | return NULL; |
| 3421 | |
| 3422 | return &dev->info; |
| 3423 | } |
| 3424 | |
| 3425 | |
| 3426 | int p2p_get_peer_info_txt(const struct p2p_peer_info *info, |
| 3427 | char *buf, size_t buflen) |
| 3428 | { |
| 3429 | struct p2p_device *dev; |
| 3430 | int res; |
| 3431 | char *pos, *end; |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 3432 | struct os_reltime now; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3433 | |
| 3434 | if (info == NULL) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3435 | return -1; |
| 3436 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3437 | dev = (struct p2p_device *) (((u8 *) info) - |
| 3438 | offsetof(struct p2p_device, info)); |
| 3439 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3440 | pos = buf; |
| 3441 | end = buf + buflen; |
| 3442 | |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 3443 | os_get_reltime(&now); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3444 | res = os_snprintf(pos, end - pos, |
| 3445 | "age=%d\n" |
| 3446 | "listen_freq=%d\n" |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3447 | "wps_method=%s\n" |
| 3448 | "interface_addr=" MACSTR "\n" |
| 3449 | "member_in_go_dev=" MACSTR "\n" |
| 3450 | "member_in_go_iface=" MACSTR "\n" |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3451 | "go_neg_req_sent=%d\n" |
| 3452 | "go_state=%s\n" |
| 3453 | "dialog_token=%u\n" |
| 3454 | "intended_addr=" MACSTR "\n" |
| 3455 | "country=%c%c\n" |
| 3456 | "oper_freq=%d\n" |
| 3457 | "req_config_methods=0x%x\n" |
| 3458 | "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n" |
| 3459 | "status=%d\n" |
| 3460 | "wait_count=%u\n" |
| 3461 | "invitation_reqs=%u\n", |
| 3462 | (int) (now.sec - dev->last_seen.sec), |
| 3463 | dev->listen_freq, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3464 | p2p_wps_method_text(dev->wps_method), |
| 3465 | MAC2STR(dev->interface_addr), |
| 3466 | MAC2STR(dev->member_in_go_dev), |
| 3467 | MAC2STR(dev->member_in_go_iface), |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3468 | dev->go_neg_req_sent, |
| 3469 | p2p_go_state_text(dev->go_state), |
| 3470 | dev->dialog_token, |
| 3471 | MAC2STR(dev->intended_addr), |
| 3472 | dev->country[0] ? dev->country[0] : '_', |
| 3473 | dev->country[1] ? dev->country[1] : '_', |
| 3474 | dev->oper_freq, |
| 3475 | dev->req_config_methods, |
| 3476 | dev->flags & P2P_DEV_PROBE_REQ_ONLY ? |
| 3477 | "[PROBE_REQ_ONLY]" : "", |
| 3478 | dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "", |
| 3479 | dev->flags & P2P_DEV_NOT_YET_READY ? |
| 3480 | "[NOT_YET_READY]" : "", |
| 3481 | dev->flags & P2P_DEV_SD_INFO ? "[SD_INFO]" : "", |
| 3482 | dev->flags & P2P_DEV_SD_SCHEDULE ? "[SD_SCHEDULE]" : |
| 3483 | "", |
| 3484 | dev->flags & P2P_DEV_PD_PEER_DISPLAY ? |
| 3485 | "[PD_PEER_DISPLAY]" : "", |
| 3486 | dev->flags & P2P_DEV_PD_PEER_KEYPAD ? |
| 3487 | "[PD_PEER_KEYPAD]" : "", |
| 3488 | dev->flags & P2P_DEV_USER_REJECTED ? |
| 3489 | "[USER_REJECTED]" : "", |
| 3490 | dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ? |
| 3491 | "[PEER_WAITING_RESPONSE]" : "", |
| 3492 | dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ? |
| 3493 | "[PREFER_PERSISTENT_GROUP]" : "", |
| 3494 | dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ? |
| 3495 | "[WAIT_GO_NEG_RESPONSE]" : "", |
| 3496 | dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ? |
| 3497 | "[WAIT_GO_NEG_CONFIRM]" : "", |
| 3498 | dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ? |
| 3499 | "[GROUP_CLIENT_ONLY]" : "", |
| 3500 | dev->flags & P2P_DEV_FORCE_FREQ ? |
| 3501 | "[FORCE_FREQ]" : "", |
| 3502 | dev->flags & P2P_DEV_PD_FOR_JOIN ? |
| 3503 | "[PD_FOR_JOIN]" : "", |
| 3504 | dev->status, |
| 3505 | dev->wait_count, |
| 3506 | dev->invitation_reqs); |
| 3507 | if (res < 0 || res >= end - pos) |
| 3508 | return pos - buf; |
| 3509 | pos += res; |
| 3510 | |
| 3511 | if (dev->ext_listen_period) { |
| 3512 | res = os_snprintf(pos, end - pos, |
| 3513 | "ext_listen_period=%u\n" |
| 3514 | "ext_listen_interval=%u\n", |
| 3515 | dev->ext_listen_period, |
| 3516 | dev->ext_listen_interval); |
| 3517 | if (res < 0 || res >= end - pos) |
| 3518 | return pos - buf; |
| 3519 | pos += res; |
| 3520 | } |
| 3521 | |
| 3522 | if (dev->oper_ssid_len) { |
| 3523 | res = os_snprintf(pos, end - pos, |
| 3524 | "oper_ssid=%s\n", |
| 3525 | wpa_ssid_txt(dev->oper_ssid, |
| 3526 | dev->oper_ssid_len)); |
| 3527 | if (res < 0 || res >= end - pos) |
| 3528 | return pos - buf; |
| 3529 | pos += res; |
| 3530 | } |
| 3531 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 3532 | #ifdef CONFIG_WIFI_DISPLAY |
| 3533 | if (dev->info.wfd_subelems) { |
| 3534 | res = os_snprintf(pos, end - pos, "wfd_subelems="); |
| 3535 | if (res < 0 || res >= end - pos) |
| 3536 | return pos - buf; |
| 3537 | pos += res; |
| 3538 | |
| 3539 | pos += wpa_snprintf_hex(pos, end - pos, |
| 3540 | wpabuf_head(dev->info.wfd_subelems), |
| 3541 | wpabuf_len(dev->info.wfd_subelems)); |
| 3542 | |
| 3543 | res = os_snprintf(pos, end - pos, "\n"); |
| 3544 | if (res < 0 || res >= end - pos) |
| 3545 | return pos - buf; |
| 3546 | pos += res; |
| 3547 | } |
| 3548 | #endif /* CONFIG_WIFI_DISPLAY */ |
| 3549 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3550 | return pos - buf; |
| 3551 | } |
| 3552 | |
| 3553 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3554 | int p2p_peer_known(struct p2p_data *p2p, const u8 *addr) |
| 3555 | { |
| 3556 | return p2p_get_device(p2p, addr) != NULL; |
| 3557 | } |
| 3558 | |
| 3559 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3560 | void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled) |
| 3561 | { |
| 3562 | if (enabled) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3563 | p2p_dbg(p2p, "Client discoverability enabled"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3564 | p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY; |
| 3565 | } else { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3566 | p2p_dbg(p2p, "Client discoverability disabled"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3567 | p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY; |
| 3568 | } |
| 3569 | } |
| 3570 | |
| 3571 | |
| 3572 | static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1, |
| 3573 | u32 duration2, u32 interval2) |
| 3574 | { |
| 3575 | struct wpabuf *req; |
| 3576 | struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL; |
| 3577 | u8 *len; |
| 3578 | |
| 3579 | req = wpabuf_alloc(100); |
| 3580 | if (req == NULL) |
| 3581 | return NULL; |
| 3582 | |
| 3583 | if (duration1 || interval1) { |
| 3584 | os_memset(&desc1, 0, sizeof(desc1)); |
| 3585 | desc1.count_type = 1; |
| 3586 | desc1.duration = duration1; |
| 3587 | desc1.interval = interval1; |
| 3588 | ptr1 = &desc1; |
| 3589 | |
| 3590 | if (duration2 || interval2) { |
| 3591 | os_memset(&desc2, 0, sizeof(desc2)); |
| 3592 | desc2.count_type = 2; |
| 3593 | desc2.duration = duration2; |
| 3594 | desc2.interval = interval2; |
| 3595 | ptr2 = &desc2; |
| 3596 | } |
| 3597 | } |
| 3598 | |
| 3599 | p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1); |
| 3600 | len = p2p_buf_add_ie_hdr(req); |
| 3601 | p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2); |
| 3602 | p2p_buf_update_ie_hdr(req, len); |
| 3603 | |
| 3604 | return req; |
| 3605 | } |
| 3606 | |
| 3607 | |
| 3608 | int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr, |
| 3609 | const u8 *own_interface_addr, unsigned int freq, |
| 3610 | u32 duration1, u32 interval1, u32 duration2, |
| 3611 | u32 interval2) |
| 3612 | { |
| 3613 | struct wpabuf *req; |
| 3614 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3615 | p2p_dbg(p2p, "Send Presence Request to GO " MACSTR |
| 3616 | " (own interface " MACSTR ") freq=%u dur1=%u int1=%u " |
| 3617 | "dur2=%u int2=%u", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3618 | MAC2STR(go_interface_addr), MAC2STR(own_interface_addr), |
| 3619 | freq, duration1, interval1, duration2, interval2); |
| 3620 | |
| 3621 | req = p2p_build_presence_req(duration1, interval1, duration2, |
| 3622 | interval2); |
| 3623 | if (req == NULL) |
| 3624 | return -1; |
| 3625 | |
| 3626 | p2p->pending_action_state = P2P_NO_PENDING_ACTION; |
| 3627 | if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr, |
| 3628 | go_interface_addr, |
| 3629 | wpabuf_head(req), wpabuf_len(req), 200) < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3630 | p2p_dbg(p2p, "Failed to send Action frame"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3631 | } |
| 3632 | wpabuf_free(req); |
| 3633 | |
| 3634 | return 0; |
| 3635 | } |
| 3636 | |
| 3637 | |
| 3638 | static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa, |
| 3639 | size_t noa_len, u8 dialog_token) |
| 3640 | { |
| 3641 | struct wpabuf *resp; |
| 3642 | u8 *len; |
| 3643 | |
| 3644 | resp = wpabuf_alloc(100 + noa_len); |
| 3645 | if (resp == NULL) |
| 3646 | return NULL; |
| 3647 | |
| 3648 | p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token); |
| 3649 | len = p2p_buf_add_ie_hdr(resp); |
| 3650 | p2p_buf_add_status(resp, status); |
| 3651 | if (noa) { |
| 3652 | wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE); |
| 3653 | wpabuf_put_le16(resp, noa_len); |
| 3654 | wpabuf_put_data(resp, noa, noa_len); |
| 3655 | } else |
| 3656 | p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL); |
| 3657 | p2p_buf_update_ie_hdr(resp, len); |
| 3658 | |
| 3659 | return resp; |
| 3660 | } |
| 3661 | |
| 3662 | |
| 3663 | static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da, |
| 3664 | const u8 *sa, const u8 *data, size_t len, |
| 3665 | int rx_freq) |
| 3666 | { |
| 3667 | struct p2p_message msg; |
| 3668 | u8 status; |
| 3669 | struct wpabuf *resp; |
| 3670 | size_t g; |
| 3671 | struct p2p_group *group = NULL; |
| 3672 | int parsed = 0; |
| 3673 | u8 noa[50]; |
| 3674 | int noa_len; |
| 3675 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3676 | p2p_dbg(p2p, "Received P2P Action - P2P Presence Request"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3677 | |
| 3678 | for (g = 0; g < p2p->num_groups; g++) { |
| 3679 | if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]), |
| 3680 | ETH_ALEN) == 0) { |
| 3681 | group = p2p->groups[g]; |
| 3682 | break; |
| 3683 | } |
| 3684 | } |
| 3685 | if (group == NULL) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3686 | p2p_dbg(p2p, "Ignore P2P Presence Request for unknown group " |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3687 | MACSTR, MAC2STR(da)); |
| 3688 | return; |
| 3689 | } |
| 3690 | |
| 3691 | if (p2p_parse(data, len, &msg) < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3692 | p2p_dbg(p2p, "Failed to parse P2P Presence Request"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3693 | status = P2P_SC_FAIL_INVALID_PARAMS; |
| 3694 | goto fail; |
| 3695 | } |
| 3696 | parsed = 1; |
| 3697 | |
| 3698 | if (msg.noa == NULL) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3699 | p2p_dbg(p2p, "No NoA attribute in P2P Presence Request"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3700 | status = P2P_SC_FAIL_INVALID_PARAMS; |
| 3701 | goto fail; |
| 3702 | } |
| 3703 | |
| 3704 | status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len); |
| 3705 | |
| 3706 | fail: |
| 3707 | if (p2p->cfg->get_noa) |
| 3708 | noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa, |
| 3709 | sizeof(noa)); |
| 3710 | else |
| 3711 | noa_len = -1; |
| 3712 | resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL, |
| 3713 | noa_len > 0 ? noa_len : 0, |
| 3714 | msg.dialog_token); |
| 3715 | if (parsed) |
| 3716 | p2p_parse_free(&msg); |
| 3717 | if (resp == NULL) |
| 3718 | return; |
| 3719 | |
| 3720 | p2p->pending_action_state = P2P_NO_PENDING_ACTION; |
| 3721 | if (p2p_send_action(p2p, rx_freq, sa, da, da, |
| 3722 | wpabuf_head(resp), wpabuf_len(resp), 200) < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3723 | p2p_dbg(p2p, "Failed to send Action frame"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3724 | } |
| 3725 | wpabuf_free(resp); |
| 3726 | } |
| 3727 | |
| 3728 | |
| 3729 | static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da, |
| 3730 | const u8 *sa, const u8 *data, size_t len) |
| 3731 | { |
| 3732 | struct p2p_message msg; |
| 3733 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3734 | p2p_dbg(p2p, "Received P2P Action - P2P Presence Response"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3735 | |
| 3736 | if (p2p_parse(data, len, &msg) < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3737 | p2p_dbg(p2p, "Failed to parse P2P Presence Response"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3738 | return; |
| 3739 | } |
| 3740 | |
| 3741 | if (msg.status == NULL || msg.noa == NULL) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3742 | p2p_dbg(p2p, "No Status or NoA attribute in P2P Presence Response"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3743 | p2p_parse_free(&msg); |
| 3744 | return; |
| 3745 | } |
| 3746 | |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 3747 | if (p2p->cfg->presence_resp) { |
| 3748 | p2p->cfg->presence_resp(p2p->cfg->cb_ctx, sa, *msg.status, |
| 3749 | msg.noa, msg.noa_len); |
| 3750 | } |
| 3751 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3752 | if (*msg.status) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3753 | p2p_dbg(p2p, "P2P Presence Request was rejected: status %u", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3754 | *msg.status); |
| 3755 | p2p_parse_free(&msg); |
| 3756 | return; |
| 3757 | } |
| 3758 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3759 | p2p_dbg(p2p, "P2P Presence Request was accepted"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3760 | wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA", |
| 3761 | msg.noa, msg.noa_len); |
| 3762 | /* TODO: process NoA */ |
| 3763 | p2p_parse_free(&msg); |
| 3764 | } |
| 3765 | |
| 3766 | |
| 3767 | static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx) |
| 3768 | { |
| 3769 | struct p2p_data *p2p = eloop_ctx; |
| 3770 | |
| 3771 | if (p2p->ext_listen_interval) { |
| 3772 | /* Schedule next extended listen timeout */ |
| 3773 | eloop_register_timeout(p2p->ext_listen_interval_sec, |
| 3774 | p2p->ext_listen_interval_usec, |
| 3775 | p2p_ext_listen_timeout, p2p, NULL); |
| 3776 | } |
| 3777 | |
| 3778 | if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) { |
| 3779 | /* |
| 3780 | * This should not really happen, but it looks like the Listen |
| 3781 | * command may fail is something else (e.g., a scan) was |
| 3782 | * running at an inconvenient time. As a workaround, allow new |
| 3783 | * Extended Listen operation to be started. |
| 3784 | */ |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3785 | p2p_dbg(p2p, "Previous Extended Listen operation had not been completed - try again"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3786 | p2p->ext_listen_only = 0; |
| 3787 | p2p_set_state(p2p, P2P_IDLE); |
| 3788 | } |
| 3789 | |
| 3790 | if (p2p->state != P2P_IDLE) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3791 | p2p_dbg(p2p, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p->state)); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3792 | return; |
| 3793 | } |
| 3794 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3795 | p2p_dbg(p2p, "Extended Listen timeout"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3796 | p2p->ext_listen_only = 1; |
| 3797 | if (p2p_listen(p2p, p2p->ext_listen_period) < 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3798 | p2p_dbg(p2p, "Failed to start Listen state for Extended Listen Timing"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3799 | p2p->ext_listen_only = 0; |
| 3800 | } |
| 3801 | } |
| 3802 | |
| 3803 | |
| 3804 | int p2p_ext_listen(struct p2p_data *p2p, unsigned int period, |
| 3805 | unsigned int interval) |
| 3806 | { |
| 3807 | if (period > 65535 || interval > 65535 || period > interval || |
| 3808 | (period == 0 && interval > 0) || (period > 0 && interval == 0)) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3809 | p2p_dbg(p2p, "Invalid Extended Listen Timing request: period=%u interval=%u", |
| 3810 | period, interval); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3811 | return -1; |
| 3812 | } |
| 3813 | |
| 3814 | eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL); |
| 3815 | |
| 3816 | if (interval == 0) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3817 | p2p_dbg(p2p, "Disabling Extended Listen Timing"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3818 | p2p->ext_listen_period = 0; |
| 3819 | p2p->ext_listen_interval = 0; |
| 3820 | return 0; |
| 3821 | } |
| 3822 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3823 | p2p_dbg(p2p, "Enabling Extended Listen Timing: period %u msec, interval %u msec", |
| 3824 | period, interval); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3825 | p2p->ext_listen_period = period; |
| 3826 | p2p->ext_listen_interval = interval; |
| 3827 | p2p->ext_listen_interval_sec = interval / 1000; |
| 3828 | p2p->ext_listen_interval_usec = (interval % 1000) * 1000; |
| 3829 | |
| 3830 | eloop_register_timeout(p2p->ext_listen_interval_sec, |
| 3831 | p2p->ext_listen_interval_usec, |
| 3832 | p2p_ext_listen_timeout, p2p, NULL); |
| 3833 | |
| 3834 | return 0; |
| 3835 | } |
| 3836 | |
| 3837 | |
| 3838 | void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, |
| 3839 | const u8 *ie, size_t ie_len) |
| 3840 | { |
| 3841 | struct p2p_message msg; |
| 3842 | |
| 3843 | if (bssid == NULL || ie == NULL) |
| 3844 | return; |
| 3845 | |
| 3846 | os_memset(&msg, 0, sizeof(msg)); |
| 3847 | if (p2p_parse_ies(ie, ie_len, &msg)) |
| 3848 | return; |
| 3849 | if (msg.minor_reason_code == NULL) |
| 3850 | return; |
| 3851 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3852 | p2p_dbg(p2p, "Deauthentication notification BSSID " MACSTR |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3853 | " reason_code=%u minor_reason_code=%u", |
| 3854 | MAC2STR(bssid), reason_code, *msg.minor_reason_code); |
| 3855 | |
| 3856 | p2p_parse_free(&msg); |
| 3857 | } |
| 3858 | |
| 3859 | |
| 3860 | void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code, |
| 3861 | const u8 *ie, size_t ie_len) |
| 3862 | { |
| 3863 | struct p2p_message msg; |
| 3864 | |
| 3865 | if (bssid == NULL || ie == NULL) |
| 3866 | return; |
| 3867 | |
| 3868 | os_memset(&msg, 0, sizeof(msg)); |
| 3869 | if (p2p_parse_ies(ie, ie_len, &msg)) |
| 3870 | return; |
| 3871 | if (msg.minor_reason_code == NULL) |
| 3872 | return; |
| 3873 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3874 | p2p_dbg(p2p, "Disassociation notification BSSID " MACSTR |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3875 | " reason_code=%u minor_reason_code=%u", |
| 3876 | MAC2STR(bssid), reason_code, *msg.minor_reason_code); |
| 3877 | |
| 3878 | p2p_parse_free(&msg); |
| 3879 | } |
| 3880 | |
| 3881 | |
| 3882 | void p2p_set_managed_oper(struct p2p_data *p2p, int enabled) |
| 3883 | { |
| 3884 | if (enabled) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3885 | p2p_dbg(p2p, "Managed P2P Device operations enabled"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3886 | p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED; |
| 3887 | } else { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3888 | p2p_dbg(p2p, "Managed P2P Device operations disabled"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3889 | p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED; |
| 3890 | } |
| 3891 | } |
| 3892 | |
| 3893 | |
| 3894 | int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel) |
| 3895 | { |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 3896 | if (p2p_channel_to_freq(reg_class, channel) < 0) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3897 | return -1; |
| 3898 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3899 | p2p_dbg(p2p, "Set Listen channel: reg_class %u channel %u", |
| 3900 | reg_class, channel); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3901 | p2p->cfg->reg_class = reg_class; |
| 3902 | p2p->cfg->channel = channel; |
| 3903 | |
| 3904 | return 0; |
| 3905 | } |
| 3906 | |
| 3907 | |
| 3908 | int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len) |
| 3909 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3910 | p2p_dbg(p2p, "New SSID postfix: %s", wpa_ssid_txt(postfix, len)); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3911 | if (postfix == NULL) { |
| 3912 | p2p->cfg->ssid_postfix_len = 0; |
| 3913 | return 0; |
| 3914 | } |
| 3915 | if (len > sizeof(p2p->cfg->ssid_postfix)) |
| 3916 | return -1; |
| 3917 | os_memcpy(p2p->cfg->ssid_postfix, postfix, len); |
| 3918 | p2p->cfg->ssid_postfix_len = len; |
| 3919 | return 0; |
| 3920 | } |
| 3921 | |
| 3922 | |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3923 | int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel, |
| 3924 | int cfg_op_channel) |
| 3925 | { |
Dmitry Shmidt | 4b06059 | 2013-04-29 16:42:49 -0700 | [diff] [blame] | 3926 | if (p2p_channel_to_freq(op_reg_class, op_channel) < 0) |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3927 | return -1; |
| 3928 | |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 3929 | p2p_dbg(p2p, "Set Operating channel: reg_class %u channel %u", |
| 3930 | op_reg_class, op_channel); |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3931 | p2p->cfg->op_reg_class = op_reg_class; |
| 3932 | p2p->cfg->op_channel = op_channel; |
| 3933 | p2p->cfg->cfg_op_channel = cfg_op_channel; |
| 3934 | return 0; |
| 3935 | } |
| 3936 | |
| 3937 | |
Dmitry Shmidt | 0494959 | 2012-07-19 12:16:46 -0700 | [diff] [blame] | 3938 | int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan, |
| 3939 | const struct p2p_channel *pref_chan) |
| 3940 | { |
| 3941 | struct p2p_channel *n; |
| 3942 | |
| 3943 | if (pref_chan) { |
| 3944 | n = os_malloc(num_pref_chan * sizeof(struct p2p_channel)); |
| 3945 | if (n == NULL) |
| 3946 | return -1; |
| 3947 | os_memcpy(n, pref_chan, |
| 3948 | num_pref_chan * sizeof(struct p2p_channel)); |
| 3949 | } else |
| 3950 | n = NULL; |
| 3951 | |
| 3952 | os_free(p2p->cfg->pref_chan); |
| 3953 | p2p->cfg->pref_chan = n; |
| 3954 | p2p->cfg->num_pref_chan = num_pref_chan; |
| 3955 | |
| 3956 | return 0; |
| 3957 | } |
| 3958 | |
| 3959 | |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 3960 | int p2p_set_no_go_freq(struct p2p_data *p2p, |
| 3961 | const struct wpa_freq_range_list *list) |
| 3962 | { |
| 3963 | struct wpa_freq_range *tmp; |
| 3964 | |
| 3965 | if (list == NULL || list->num == 0) { |
| 3966 | os_free(p2p->no_go_freq.range); |
| 3967 | p2p->no_go_freq.range = NULL; |
| 3968 | p2p->no_go_freq.num = 0; |
| 3969 | return 0; |
| 3970 | } |
| 3971 | |
| 3972 | tmp = os_calloc(list->num, sizeof(struct wpa_freq_range)); |
| 3973 | if (tmp == NULL) |
| 3974 | return -1; |
| 3975 | os_memcpy(tmp, list->range, list->num * sizeof(struct wpa_freq_range)); |
| 3976 | os_free(p2p->no_go_freq.range); |
| 3977 | p2p->no_go_freq.range = tmp; |
| 3978 | p2p->no_go_freq.num = list->num; |
| 3979 | p2p_dbg(p2p, "Updated no GO chan list"); |
| 3980 | |
| 3981 | return 0; |
| 3982 | } |
| 3983 | |
| 3984 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3985 | int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr, |
| 3986 | u8 *iface_addr) |
| 3987 | { |
| 3988 | struct p2p_device *dev = p2p_get_device(p2p, dev_addr); |
| 3989 | if (dev == NULL || is_zero_ether_addr(dev->interface_addr)) |
| 3990 | return -1; |
| 3991 | os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN); |
| 3992 | return 0; |
| 3993 | } |
| 3994 | |
| 3995 | |
| 3996 | int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr, |
| 3997 | u8 *dev_addr) |
| 3998 | { |
| 3999 | struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr); |
| 4000 | if (dev == NULL) |
| 4001 | return -1; |
| 4002 | os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN); |
| 4003 | return 0; |
| 4004 | } |
| 4005 | |
| 4006 | |
| 4007 | void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr) |
| 4008 | { |
| 4009 | os_memcpy(p2p->peer_filter, addr, ETH_ALEN); |
| 4010 | if (is_zero_ether_addr(p2p->peer_filter)) |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 4011 | p2p_dbg(p2p, "Disable peer filter"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4012 | else |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 4013 | p2p_dbg(p2p, "Enable peer filter for " MACSTR, |
| 4014 | MAC2STR(p2p->peer_filter)); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4015 | } |
| 4016 | |
| 4017 | |
| 4018 | void p2p_set_cross_connect(struct p2p_data *p2p, int enabled) |
| 4019 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 4020 | p2p_dbg(p2p, "Cross connection %s", enabled ? "enabled" : "disabled"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4021 | if (p2p->cross_connect == enabled) |
| 4022 | return; |
| 4023 | p2p->cross_connect = enabled; |
| 4024 | /* TODO: may need to tear down any action group where we are GO(?) */ |
| 4025 | } |
| 4026 | |
| 4027 | |
| 4028 | int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr) |
| 4029 | { |
| 4030 | struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr); |
| 4031 | if (dev == NULL) |
| 4032 | return -1; |
| 4033 | if (dev->oper_freq <= 0) |
| 4034 | return -1; |
| 4035 | return dev->oper_freq; |
| 4036 | } |
| 4037 | |
| 4038 | |
| 4039 | void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled) |
| 4040 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 4041 | p2p_dbg(p2p, "Intra BSS distribution %s", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4042 | enabled ? "enabled" : "disabled"); |
| 4043 | p2p->cfg->p2p_intra_bss = enabled; |
| 4044 | } |
| 4045 | |
| 4046 | |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 4047 | void p2p_update_channel_list(struct p2p_data *p2p, |
| 4048 | const struct p2p_channels *chan, |
| 4049 | const struct p2p_channels *cli_chan) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4050 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 4051 | p2p_dbg(p2p, "Update channel list"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4052 | os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels)); |
Dmitry Shmidt | 68d0e3e | 2013-10-28 17:59:21 -0700 | [diff] [blame] | 4053 | p2p_channels_dump(p2p, "channels", &p2p->cfg->channels); |
| 4054 | os_memcpy(&p2p->cfg->cli_channels, cli_chan, |
| 4055 | sizeof(struct p2p_channels)); |
| 4056 | p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4057 | } |
| 4058 | |
| 4059 | |
| 4060 | int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst, |
| 4061 | const u8 *src, const u8 *bssid, const u8 *buf, |
| 4062 | size_t len, unsigned int wait_time) |
| 4063 | { |
| 4064 | if (p2p->p2p_scan_running) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 4065 | p2p_dbg(p2p, "Delay Action frame TX until p2p_scan completes"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4066 | if (p2p->after_scan_tx) { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 4067 | p2p_dbg(p2p, "Dropped previous pending Action frame TX"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4068 | os_free(p2p->after_scan_tx); |
| 4069 | } |
| 4070 | p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) + |
| 4071 | len); |
| 4072 | if (p2p->after_scan_tx == NULL) |
| 4073 | return -1; |
| 4074 | p2p->after_scan_tx->freq = freq; |
| 4075 | os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN); |
| 4076 | os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN); |
| 4077 | os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN); |
| 4078 | p2p->after_scan_tx->len = len; |
| 4079 | p2p->after_scan_tx->wait_time = wait_time; |
| 4080 | os_memcpy(p2p->after_scan_tx + 1, buf, len); |
| 4081 | return 0; |
| 4082 | } |
| 4083 | |
| 4084 | return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid, |
| 4085 | buf, len, wait_time); |
| 4086 | } |
| 4087 | |
| 4088 | |
| 4089 | void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5, |
| 4090 | int freq_overall) |
| 4091 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 4092 | p2p_dbg(p2p, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d", |
| 4093 | freq_24, freq_5, freq_overall); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4094 | p2p->best_freq_24 = freq_24; |
| 4095 | p2p->best_freq_5 = freq_5; |
| 4096 | p2p->best_freq_overall = freq_overall; |
| 4097 | } |
| 4098 | |
| 4099 | |
Dmitry Shmidt | 700a137 | 2013-03-15 14:14:44 -0700 | [diff] [blame] | 4100 | void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq) |
| 4101 | { |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 4102 | p2p_dbg(p2p, "Own frequency preference: %d MHz", freq); |
Dmitry Shmidt | 700a137 | 2013-03-15 14:14:44 -0700 | [diff] [blame] | 4103 | p2p->own_freq_preference = freq; |
| 4104 | } |
| 4105 | |
| 4106 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4107 | const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p) |
| 4108 | { |
| 4109 | if (p2p == NULL || p2p->go_neg_peer == NULL) |
| 4110 | return NULL; |
| 4111 | return p2p->go_neg_peer->info.p2p_device_addr; |
| 4112 | } |
| 4113 | |
| 4114 | |
| 4115 | const struct p2p_peer_info * |
| 4116 | p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next) |
| 4117 | { |
| 4118 | struct p2p_device *dev; |
| 4119 | |
| 4120 | if (addr) { |
| 4121 | dev = p2p_get_device(p2p, addr); |
| 4122 | if (!dev) |
| 4123 | return NULL; |
| 4124 | |
| 4125 | if (!next) { |
| 4126 | if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) |
| 4127 | return NULL; |
| 4128 | |
| 4129 | return &dev->info; |
| 4130 | } else { |
| 4131 | do { |
| 4132 | dev = dl_list_first(&dev->list, |
| 4133 | struct p2p_device, |
| 4134 | list); |
| 4135 | if (&dev->list == &p2p->devices) |
| 4136 | return NULL; |
| 4137 | } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY); |
| 4138 | } |
| 4139 | } else { |
| 4140 | dev = dl_list_first(&p2p->devices, struct p2p_device, list); |
| 4141 | if (!dev) |
| 4142 | return NULL; |
| 4143 | while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) { |
| 4144 | dev = dl_list_first(&dev->list, |
| 4145 | struct p2p_device, |
| 4146 | list); |
| 4147 | if (&dev->list == &p2p->devices) |
| 4148 | return NULL; |
| 4149 | } |
| 4150 | } |
| 4151 | |
| 4152 | return &dev->info; |
| 4153 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 4154 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 4155 | |
| 4156 | int p2p_in_progress(struct p2p_data *p2p) |
| 4157 | { |
| 4158 | if (p2p == NULL) |
| 4159 | return 0; |
Dmitry Shmidt | fb79edc | 2014-01-10 10:45:54 -0800 | [diff] [blame] | 4160 | if (p2p->state == P2P_SEARCH) |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 4161 | return 2; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 4162 | return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING; |
| 4163 | } |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 4164 | |
| 4165 | |
| 4166 | void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout, |
| 4167 | u8 client_timeout) |
| 4168 | { |
| 4169 | if (p2p) { |
| 4170 | p2p->go_timeout = go_timeout; |
| 4171 | p2p->client_timeout = client_timeout; |
| 4172 | } |
| 4173 | } |
| 4174 | |
| 4175 | |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 4176 | #ifdef CONFIG_WIFI_DISPLAY |
| 4177 | |
| 4178 | static void p2p_update_wfd_ie_groups(struct p2p_data *p2p) |
| 4179 | { |
| 4180 | size_t g; |
| 4181 | struct p2p_group *group; |
| 4182 | |
| 4183 | for (g = 0; g < p2p->num_groups; g++) { |
| 4184 | group = p2p->groups[g]; |
Dmitry Shmidt | b96dad4 | 2013-11-05 10:07:29 -0800 | [diff] [blame] | 4185 | p2p_group_force_beacon_update_ies(group); |
Dmitry Shmidt | 61d9df3 | 2012-08-29 16:22:06 -0700 | [diff] [blame] | 4186 | } |
| 4187 | } |
| 4188 | |
| 4189 | |
| 4190 | int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie) |
| 4191 | { |
| 4192 | wpabuf_free(p2p->wfd_ie_beacon); |
| 4193 | p2p->wfd_ie_beacon = ie; |
| 4194 | p2p_update_wfd_ie_groups(p2p); |
| 4195 | return 0; |
| 4196 | } |
| 4197 | |
| 4198 | |
| 4199 | int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie) |
| 4200 | { |
| 4201 | wpabuf_free(p2p->wfd_ie_probe_req); |
| 4202 | p2p->wfd_ie_probe_req = ie; |
| 4203 | return 0; |
| 4204 | } |
| 4205 | |
| 4206 | |
| 4207 | int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie) |
| 4208 | { |
| 4209 | wpabuf_free(p2p->wfd_ie_probe_resp); |
| 4210 | p2p->wfd_ie_probe_resp = ie; |
| 4211 | p2p_update_wfd_ie_groups(p2p); |
| 4212 | return 0; |
| 4213 | } |
| 4214 | |
| 4215 | |
| 4216 | int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie) |
| 4217 | { |
| 4218 | wpabuf_free(p2p->wfd_ie_assoc_req); |
| 4219 | p2p->wfd_ie_assoc_req = ie; |
| 4220 | return 0; |
| 4221 | } |
| 4222 | |
| 4223 | |
| 4224 | int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie) |
| 4225 | { |
| 4226 | wpabuf_free(p2p->wfd_ie_invitation); |
| 4227 | p2p->wfd_ie_invitation = ie; |
| 4228 | return 0; |
| 4229 | } |
| 4230 | |
| 4231 | |
| 4232 | int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie) |
| 4233 | { |
| 4234 | wpabuf_free(p2p->wfd_ie_prov_disc_req); |
| 4235 | p2p->wfd_ie_prov_disc_req = ie; |
| 4236 | return 0; |
| 4237 | } |
| 4238 | |
| 4239 | |
| 4240 | int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie) |
| 4241 | { |
| 4242 | wpabuf_free(p2p->wfd_ie_prov_disc_resp); |
| 4243 | p2p->wfd_ie_prov_disc_resp = ie; |
| 4244 | return 0; |
| 4245 | } |
| 4246 | |
| 4247 | |
| 4248 | int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie) |
| 4249 | { |
| 4250 | wpabuf_free(p2p->wfd_ie_go_neg); |
| 4251 | p2p->wfd_ie_go_neg = ie; |
| 4252 | return 0; |
| 4253 | } |
| 4254 | |
| 4255 | |
| 4256 | int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem) |
| 4257 | { |
| 4258 | wpabuf_free(p2p->wfd_dev_info); |
| 4259 | if (elem) { |
| 4260 | p2p->wfd_dev_info = wpabuf_dup(elem); |
| 4261 | if (p2p->wfd_dev_info == NULL) |
| 4262 | return -1; |
| 4263 | } else |
| 4264 | p2p->wfd_dev_info = NULL; |
| 4265 | |
| 4266 | return 0; |
| 4267 | } |
| 4268 | |
| 4269 | |
| 4270 | int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem) |
| 4271 | { |
| 4272 | wpabuf_free(p2p->wfd_assoc_bssid); |
| 4273 | if (elem) { |
| 4274 | p2p->wfd_assoc_bssid = wpabuf_dup(elem); |
| 4275 | if (p2p->wfd_assoc_bssid == NULL) |
| 4276 | return -1; |
| 4277 | } else |
| 4278 | p2p->wfd_assoc_bssid = NULL; |
| 4279 | |
| 4280 | return 0; |
| 4281 | } |
| 4282 | |
| 4283 | |
| 4284 | int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p, |
| 4285 | const struct wpabuf *elem) |
| 4286 | { |
| 4287 | wpabuf_free(p2p->wfd_coupled_sink_info); |
| 4288 | if (elem) { |
| 4289 | p2p->wfd_coupled_sink_info = wpabuf_dup(elem); |
| 4290 | if (p2p->wfd_coupled_sink_info == NULL) |
| 4291 | return -1; |
| 4292 | } else |
| 4293 | p2p->wfd_coupled_sink_info = NULL; |
| 4294 | |
| 4295 | return 0; |
| 4296 | } |
| 4297 | |
| 4298 | #endif /* CONFIG_WIFI_DISPLAY */ |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 4299 | |
| 4300 | |
| 4301 | int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int, |
| 4302 | int max_disc_tu) |
| 4303 | { |
| 4304 | if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0) |
| 4305 | return -1; |
| 4306 | |
| 4307 | p2p->min_disc_int = min_disc_int; |
| 4308 | p2p->max_disc_int = max_disc_int; |
| 4309 | p2p->max_disc_tu = max_disc_tu; |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 4310 | p2p_dbg(p2p, "Set discoverable interval: min=%d max=%d max_tu=%d", |
| 4311 | min_disc_int, max_disc_int, max_disc_tu); |
Dmitry Shmidt | d5e4923 | 2012-12-03 15:08:10 -0800 | [diff] [blame] | 4312 | |
| 4313 | return 0; |
| 4314 | } |
Dmitry Shmidt | b6e9aaf | 2013-05-20 14:49:44 -0700 | [diff] [blame] | 4315 | |
| 4316 | |
| 4317 | void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...) |
| 4318 | { |
| 4319 | va_list ap; |
| 4320 | char buf[500]; |
| 4321 | |
| 4322 | if (!p2p->cfg->debug_print) |
| 4323 | return; |
| 4324 | |
| 4325 | va_start(ap, fmt); |
| 4326 | vsnprintf(buf, sizeof(buf), fmt, ap); |
| 4327 | buf[sizeof(buf) - 1] = '\0'; |
| 4328 | va_end(ap); |
| 4329 | p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_DEBUG, buf); |
| 4330 | } |
| 4331 | |
| 4332 | |
| 4333 | void p2p_info(struct p2p_data *p2p, const char *fmt, ...) |
| 4334 | { |
| 4335 | va_list ap; |
| 4336 | char buf[500]; |
| 4337 | |
| 4338 | if (!p2p->cfg->debug_print) |
| 4339 | return; |
| 4340 | |
| 4341 | va_start(ap, fmt); |
| 4342 | vsnprintf(buf, sizeof(buf), fmt, ap); |
| 4343 | buf[sizeof(buf) - 1] = '\0'; |
| 4344 | va_end(ap); |
| 4345 | p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_INFO, buf); |
| 4346 | } |
| 4347 | |
| 4348 | |
| 4349 | void p2p_err(struct p2p_data *p2p, const char *fmt, ...) |
| 4350 | { |
| 4351 | va_list ap; |
| 4352 | char buf[500]; |
| 4353 | |
| 4354 | if (!p2p->cfg->debug_print) |
| 4355 | return; |
| 4356 | |
| 4357 | va_start(ap, fmt); |
| 4358 | vsnprintf(buf, sizeof(buf), fmt, ap); |
| 4359 | buf[sizeof(buf) - 1] = '\0'; |
| 4360 | va_end(ap); |
| 4361 | p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_ERROR, buf); |
| 4362 | } |