Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * wpa_supplicant - P2P |
| 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_common.h" |
| 14 | #include "common/ieee802_11_defs.h" |
| 15 | #include "common/wpa_ctrl.h" |
| 16 | #include "wps/wps_i.h" |
| 17 | #include "p2p/p2p.h" |
| 18 | #include "ap/hostapd.h" |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 19 | #include "ap/ap_config.h" |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 20 | #include "ap/p2p_hostapd.h" |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 21 | #include "eapol_supp/eapol_supp_sm.h" |
| 22 | #include "rsn_supp/wpa.h" |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 23 | #include "wpa_supplicant_i.h" |
| 24 | #include "driver_i.h" |
| 25 | #include "ap.h" |
| 26 | #include "config_ssid.h" |
| 27 | #include "config.h" |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 28 | #include "notify.h" |
| 29 | #include "scan.h" |
| 30 | #include "bss.h" |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 31 | #include "offchannel.h" |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 32 | #include "wps_supplicant.h" |
| 33 | #include "p2p_supplicant.h" |
| 34 | |
| 35 | |
| 36 | /* |
| 37 | * How many times to try to scan to find the GO before giving up on join |
| 38 | * request. |
| 39 | */ |
| 40 | #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10 |
| 41 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 42 | #ifndef P2P_MAX_CLIENT_IDLE |
| 43 | /* |
| 44 | * How many seconds to try to reconnect to the GO when connection in P2P client |
| 45 | * role has been lost. |
| 46 | */ |
| 47 | #define P2P_MAX_CLIENT_IDLE 10 |
| 48 | #endif /* P2P_MAX_CLIENT_IDLE */ |
| 49 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 50 | |
| 51 | static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx); |
| 52 | static struct wpa_supplicant * |
| 53 | wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated, |
| 54 | int go); |
| 55 | static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s); |
| 56 | static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx); |
| 57 | static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr, |
| 58 | const u8 *dev_addr, enum p2p_wps_method wps_method); |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 59 | static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx, |
| 60 | void *timeout_ctx); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 61 | static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s); |
| 62 | static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s); |
| 63 | static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx); |
| 64 | static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s); |
| 65 | |
| 66 | |
| 67 | static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s, |
| 68 | struct wpa_scan_results *scan_res) |
| 69 | { |
| 70 | size_t i; |
| 71 | |
| 72 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 73 | return; |
| 74 | |
| 75 | wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)", |
| 76 | (int) scan_res->num); |
| 77 | |
| 78 | for (i = 0; i < scan_res->num; i++) { |
| 79 | struct wpa_scan_res *bss = scan_res->res[i]; |
| 80 | if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid, |
| 81 | bss->freq, bss->level, |
| 82 | (const u8 *) (bss + 1), |
| 83 | bss->ie_len) > 0) |
| 84 | break; |
| 85 | } |
| 86 | |
| 87 | p2p_scan_res_handled(wpa_s->global->p2p); |
| 88 | } |
| 89 | |
| 90 | |
| 91 | static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq, |
| 92 | unsigned int num_req_dev_types, |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 93 | const u8 *req_dev_types, const u8 *dev_id) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 94 | { |
| 95 | struct wpa_supplicant *wpa_s = ctx; |
| 96 | struct wpa_driver_scan_params params; |
| 97 | int ret; |
| 98 | struct wpabuf *wps_ie, *ies; |
| 99 | int social_channels[] = { 2412, 2437, 2462, 0, 0 }; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 100 | size_t ielen; |
| 101 | int was_in_p2p_scan; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 102 | |
| 103 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 104 | return -1; |
| 105 | |
| 106 | os_memset(¶ms, 0, sizeof(params)); |
| 107 | |
| 108 | /* P2P Wildcard SSID */ |
| 109 | params.num_ssids = 1; |
| 110 | params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID; |
| 111 | params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN; |
| 112 | |
| 113 | wpa_s->wps->dev.p2p = 1; |
| 114 | wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid, |
| 115 | WPS_REQ_ENROLLEE, |
| 116 | num_req_dev_types, req_dev_types); |
| 117 | if (wps_ie == NULL) |
| 118 | return -1; |
| 119 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 120 | ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p); |
| 121 | ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 122 | if (ies == NULL) { |
| 123 | wpabuf_free(wps_ie); |
| 124 | return -1; |
| 125 | } |
| 126 | wpabuf_put_buf(ies, wps_ie); |
| 127 | wpabuf_free(wps_ie); |
| 128 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 129 | p2p_scan_ie(wpa_s->global->p2p, ies, dev_id); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 130 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 131 | params.p2p_probe = 1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 132 | params.extra_ies = wpabuf_head(ies); |
| 133 | params.extra_ies_len = wpabuf_len(ies); |
| 134 | |
| 135 | switch (type) { |
| 136 | case P2P_SCAN_SOCIAL: |
| 137 | params.freqs = social_channels; |
| 138 | break; |
| 139 | case P2P_SCAN_FULL: |
| 140 | break; |
| 141 | case P2P_SCAN_SPECIFIC: |
| 142 | social_channels[0] = freq; |
| 143 | social_channels[1] = 0; |
| 144 | params.freqs = social_channels; |
| 145 | break; |
| 146 | case P2P_SCAN_SOCIAL_PLUS_ONE: |
| 147 | social_channels[3] = freq; |
| 148 | params.freqs = social_channels; |
| 149 | break; |
| 150 | } |
| 151 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 152 | was_in_p2p_scan = wpa_s->scan_res_handler == wpas_p2p_scan_res_handler; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 153 | wpa_s->scan_res_handler = wpas_p2p_scan_res_handler; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 154 | ret = wpa_drv_scan(wpa_s, ¶ms); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 155 | |
| 156 | wpabuf_free(ies); |
| 157 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 158 | if (ret) { |
| 159 | wpa_s->scan_res_handler = NULL; |
| 160 | if (wpa_s->scanning || was_in_p2p_scan) { |
| 161 | wpa_s->p2p_cb_on_scan_complete = 1; |
| 162 | ret = 1; |
| 163 | } |
| 164 | } |
| 165 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 166 | return ret; |
| 167 | } |
| 168 | |
| 169 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 170 | static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface) |
| 171 | { |
| 172 | switch (p2p_group_interface) { |
| 173 | case P2P_GROUP_INTERFACE_PENDING: |
| 174 | return WPA_IF_P2P_GROUP; |
| 175 | case P2P_GROUP_INTERFACE_GO: |
| 176 | return WPA_IF_P2P_GO; |
| 177 | case P2P_GROUP_INTERFACE_CLIENT: |
| 178 | return WPA_IF_P2P_CLIENT; |
| 179 | } |
| 180 | |
| 181 | return WPA_IF_P2P_GROUP; |
| 182 | } |
| 183 | |
| 184 | |
| 185 | static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s, |
| 186 | const u8 *ssid, |
| 187 | size_t ssid_len, int *go) |
| 188 | { |
| 189 | struct wpa_ssid *s; |
| 190 | |
| 191 | for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
| 192 | for (s = wpa_s->conf->ssid; s; s = s->next) { |
| 193 | if (s->disabled != 0 || !s->p2p_group || |
| 194 | s->ssid_len != ssid_len || |
| 195 | os_memcmp(ssid, s->ssid, ssid_len) != 0) |
| 196 | continue; |
| 197 | if (s->mode == WPAS_MODE_P2P_GO && |
| 198 | s != wpa_s->current_ssid) |
| 199 | continue; |
| 200 | if (go) |
| 201 | *go = s->mode == WPAS_MODE_P2P_GO; |
| 202 | return wpa_s; |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | return NULL; |
| 207 | } |
| 208 | |
| 209 | |
| 210 | static void wpas_p2p_group_delete(struct wpa_supplicant *wpa_s) |
| 211 | { |
| 212 | struct wpa_ssid *ssid; |
| 213 | char *gtype; |
| 214 | const char *reason; |
| 215 | |
| 216 | eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL); |
| 217 | |
| 218 | ssid = wpa_s->current_ssid; |
| 219 | if (ssid == NULL) { |
| 220 | /* |
| 221 | * The current SSID was not known, but there may still be a |
| 222 | * pending P2P group interface waiting for provisioning. |
| 223 | */ |
| 224 | ssid = wpa_s->conf->ssid; |
| 225 | while (ssid) { |
| 226 | if (ssid->p2p_group && |
| 227 | (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION || |
| 228 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) |
| 229 | break; |
| 230 | ssid = ssid->next; |
| 231 | } |
| 232 | } |
| 233 | if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO) |
| 234 | gtype = "GO"; |
| 235 | else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT || |
| 236 | (ssid && ssid->mode == WPAS_MODE_INFRA)) { |
| 237 | wpa_s->reassociate = 0; |
| 238 | wpa_s->disconnected = 1; |
| 239 | wpa_supplicant_deauthenticate(wpa_s, |
| 240 | WLAN_REASON_DEAUTH_LEAVING); |
| 241 | gtype = "client"; |
| 242 | } else |
| 243 | gtype = "GO"; |
| 244 | if (wpa_s->cross_connect_in_use) { |
| 245 | wpa_s->cross_connect_in_use = 0; |
| 246 | wpa_msg(wpa_s->parent, MSG_INFO, |
| 247 | P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s", |
| 248 | wpa_s->ifname, wpa_s->cross_connect_uplink); |
| 249 | } |
| 250 | switch (wpa_s->removal_reason) { |
| 251 | case P2P_GROUP_REMOVAL_REQUESTED: |
| 252 | reason = " reason=REQUESTED"; |
| 253 | break; |
| 254 | case P2P_GROUP_REMOVAL_IDLE_TIMEOUT: |
| 255 | reason = " reason=IDLE"; |
| 256 | break; |
| 257 | case P2P_GROUP_REMOVAL_UNAVAILABLE: |
| 258 | reason = " reason=UNAVAILABLE"; |
| 259 | break; |
Dmitry Shmidt | 687922c | 2012-03-26 14:02:32 -0700 | [diff] [blame^] | 260 | #ifdef ANDROID_P2P |
| 261 | case P2P_GROUP_REMOVAL_FREQ_CONFLICT: |
| 262 | reason = " reason=FREQ_CONFLICT"; |
| 263 | break; |
| 264 | #endif |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 265 | default: |
| 266 | reason = ""; |
| 267 | break; |
| 268 | } |
| 269 | wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_REMOVED "%s %s%s", |
| 270 | wpa_s->ifname, gtype, reason); |
| 271 | |
| 272 | if (ssid) |
| 273 | wpas_notify_p2p_group_removed(wpa_s, ssid, gtype); |
| 274 | |
| 275 | if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) { |
| 276 | struct wpa_global *global; |
| 277 | char *ifname; |
| 278 | enum wpa_driver_if_type type; |
| 279 | wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s", |
| 280 | wpa_s->ifname); |
| 281 | global = wpa_s->global; |
| 282 | ifname = os_strdup(wpa_s->ifname); |
| 283 | type = wpas_p2p_if_type(wpa_s->p2p_group_interface); |
Dmitry Shmidt | e15c7b5 | 2011-08-03 15:04:35 -0700 | [diff] [blame] | 284 | wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 285 | wpa_s = global->ifaces; |
| 286 | if (wpa_s && ifname) |
| 287 | wpa_drv_if_remove(wpa_s, type, ifname); |
| 288 | os_free(ifname); |
| 289 | return; |
| 290 | } |
| 291 | |
| 292 | wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network"); |
| 293 | if (ssid && (ssid->p2p_group || |
| 294 | ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION || |
| 295 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) { |
| 296 | int id = ssid->id; |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 297 | if (ssid == wpa_s->current_ssid) { |
| 298 | wpa_sm_set_config(wpa_s->wpa, NULL); |
| 299 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 300 | wpa_s->current_ssid = NULL; |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 301 | } |
| 302 | /* |
| 303 | * Networks objects created during any P2P activities are not |
| 304 | * exposed out as they might/will confuse certain non-P2P aware |
| 305 | * applications since these network objects won't behave like |
| 306 | * regular ones. |
| 307 | * |
| 308 | * Likewise, we don't send out network removed signals for such |
| 309 | * network objects. |
| 310 | */ |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 311 | wpa_config_remove_network(wpa_s->conf, id); |
| 312 | wpa_supplicant_clear_status(wpa_s); |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 313 | wpa_supplicant_cancel_sched_scan(wpa_s); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 314 | } else { |
| 315 | wpa_printf(MSG_DEBUG, "P2P: Temporary group network not " |
| 316 | "found"); |
| 317 | } |
| 318 | wpa_supplicant_ap_deinit(wpa_s); |
| 319 | } |
| 320 | |
| 321 | |
| 322 | static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s, |
| 323 | u8 *go_dev_addr, |
| 324 | const u8 *ssid, size_t ssid_len) |
| 325 | { |
| 326 | struct wpa_bss *bss; |
| 327 | const u8 *bssid; |
| 328 | struct wpabuf *p2p; |
| 329 | u8 group_capab; |
| 330 | const u8 *addr; |
| 331 | |
| 332 | if (wpa_s->go_params) |
| 333 | bssid = wpa_s->go_params->peer_interface_addr; |
| 334 | else |
| 335 | bssid = wpa_s->bssid; |
| 336 | |
| 337 | bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len); |
| 338 | if (bss == NULL) { |
| 339 | u8 iface_addr[ETH_ALEN]; |
| 340 | if (p2p_get_interface_addr(wpa_s->global->p2p, bssid, |
| 341 | iface_addr) == 0) |
| 342 | bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len); |
| 343 | } |
| 344 | if (bss == NULL) { |
| 345 | wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether " |
| 346 | "group is persistent - BSS " MACSTR " not found", |
| 347 | MAC2STR(bssid)); |
| 348 | return 0; |
| 349 | } |
| 350 | |
| 351 | p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); |
| 352 | if (p2p == NULL) { |
| 353 | wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether " |
| 354 | "group is persistent - BSS " MACSTR |
| 355 | " did not include P2P IE", MAC2STR(bssid)); |
| 356 | wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs", |
| 357 | (u8 *) (bss + 1), bss->ie_len); |
| 358 | wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs", |
| 359 | ((u8 *) bss + 1) + bss->ie_len, |
| 360 | bss->beacon_ie_len); |
| 361 | return 0; |
| 362 | } |
| 363 | |
| 364 | group_capab = p2p_get_group_capab(p2p); |
| 365 | addr = p2p_get_go_dev_addr(p2p); |
| 366 | wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: " |
| 367 | "group_capab=0x%x", group_capab); |
| 368 | if (addr) { |
| 369 | os_memcpy(go_dev_addr, addr, ETH_ALEN); |
| 370 | wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR, |
| 371 | MAC2STR(addr)); |
| 372 | } else |
| 373 | os_memset(go_dev_addr, 0, ETH_ALEN); |
| 374 | wpabuf_free(p2p); |
| 375 | |
| 376 | wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x " |
| 377 | "go_dev_addr=" MACSTR, |
| 378 | MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr)); |
| 379 | |
| 380 | return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP; |
| 381 | } |
| 382 | |
| 383 | |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 384 | static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s, |
| 385 | struct wpa_ssid *ssid, |
| 386 | const u8 *go_dev_addr) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 387 | { |
| 388 | struct wpa_ssid *s; |
| 389 | int changed = 0; |
| 390 | |
| 391 | wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent " |
| 392 | "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr)); |
| 393 | for (s = wpa_s->conf->ssid; s; s = s->next) { |
| 394 | if (s->disabled == 2 && |
| 395 | os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 && |
| 396 | s->ssid_len == ssid->ssid_len && |
| 397 | os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0) |
| 398 | break; |
| 399 | } |
| 400 | |
| 401 | if (s) { |
| 402 | wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group " |
| 403 | "entry"); |
| 404 | if (ssid->passphrase && !s->passphrase) |
| 405 | changed = 1; |
| 406 | else if (ssid->passphrase && s->passphrase && |
| 407 | os_strcmp(ssid->passphrase, s->passphrase) != 0) |
| 408 | changed = 1; |
| 409 | } else { |
| 410 | wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group " |
| 411 | "entry"); |
| 412 | changed = 1; |
| 413 | s = wpa_config_add_network(wpa_s->conf); |
| 414 | if (s == NULL) |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 415 | return -1; |
| 416 | |
| 417 | /* |
| 418 | * Instead of network_added we emit persistent_group_added |
| 419 | * notification. Also to keep the defense checks in |
| 420 | * persistent_group obj registration method, we set the |
| 421 | * relevant flags in s to designate it as a persistent group. |
| 422 | */ |
| 423 | s->p2p_group = 1; |
| 424 | s->p2p_persistent_group = 1; |
| 425 | wpas_notify_persistent_group_added(wpa_s, s); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 426 | wpa_config_set_network_defaults(s); |
| 427 | } |
| 428 | |
| 429 | s->p2p_group = 1; |
| 430 | s->p2p_persistent_group = 1; |
| 431 | s->disabled = 2; |
| 432 | s->bssid_set = 1; |
| 433 | os_memcpy(s->bssid, go_dev_addr, ETH_ALEN); |
| 434 | s->mode = ssid->mode; |
| 435 | s->auth_alg = WPA_AUTH_ALG_OPEN; |
| 436 | s->key_mgmt = WPA_KEY_MGMT_PSK; |
| 437 | s->proto = WPA_PROTO_RSN; |
| 438 | s->pairwise_cipher = WPA_CIPHER_CCMP; |
| 439 | s->export_keys = 1; |
| 440 | if (ssid->passphrase) { |
| 441 | os_free(s->passphrase); |
| 442 | s->passphrase = os_strdup(ssid->passphrase); |
| 443 | } |
| 444 | if (ssid->psk_set) { |
| 445 | s->psk_set = 1; |
| 446 | os_memcpy(s->psk, ssid->psk, 32); |
| 447 | } |
| 448 | if (s->passphrase && !s->psk_set) |
| 449 | wpa_config_update_psk(s); |
| 450 | if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) { |
| 451 | os_free(s->ssid); |
| 452 | s->ssid = os_malloc(ssid->ssid_len); |
| 453 | } |
| 454 | if (s->ssid) { |
| 455 | s->ssid_len = ssid->ssid_len; |
| 456 | os_memcpy(s->ssid, ssid->ssid, s->ssid_len); |
| 457 | } |
| 458 | |
| 459 | #ifndef CONFIG_NO_CONFIG_WRITE |
| 460 | if (changed && wpa_s->conf->update_config && |
| 461 | wpa_config_write(wpa_s->confname, wpa_s->conf)) { |
| 462 | wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration"); |
| 463 | } |
| 464 | #endif /* CONFIG_NO_CONFIG_WRITE */ |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 465 | |
| 466 | return s->id; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 467 | } |
| 468 | |
| 469 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 470 | static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s, |
| 471 | const u8 *addr) |
| 472 | { |
| 473 | struct wpa_ssid *ssid, *s; |
| 474 | u8 *n; |
| 475 | size_t i; |
| 476 | |
| 477 | ssid = wpa_s->current_ssid; |
| 478 | if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO || |
| 479 | !ssid->p2p_persistent_group) |
| 480 | return; |
| 481 | |
| 482 | for (s = wpa_s->parent->conf->ssid; s; s = s->next) { |
| 483 | if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO) |
| 484 | continue; |
| 485 | |
| 486 | if (s->ssid_len == ssid->ssid_len && |
| 487 | os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0) |
| 488 | break; |
| 489 | } |
| 490 | |
| 491 | if (s == NULL) |
| 492 | return; |
| 493 | |
| 494 | for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) { |
| 495 | if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr, |
| 496 | ETH_ALEN) == 0) |
| 497 | return; /* already in list */ |
| 498 | } |
| 499 | |
| 500 | n = os_realloc(s->p2p_client_list, |
| 501 | (s->num_p2p_clients + 1) * ETH_ALEN); |
| 502 | if (n == NULL) |
| 503 | return; |
| 504 | os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN); |
| 505 | s->p2p_client_list = n; |
| 506 | s->num_p2p_clients++; |
| 507 | |
| 508 | #ifndef CONFIG_NO_CONFIG_WRITE |
| 509 | if (wpa_s->parent->conf->update_config && |
| 510 | wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf)) |
| 511 | wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration"); |
| 512 | #endif /* CONFIG_NO_CONFIG_WRITE */ |
| 513 | } |
| 514 | |
| 515 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 516 | static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s, |
| 517 | int success) |
| 518 | { |
| 519 | struct wpa_ssid *ssid; |
| 520 | const char *ssid_txt; |
| 521 | int client; |
| 522 | int persistent; |
| 523 | u8 go_dev_addr[ETH_ALEN]; |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 524 | int network_id = -1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 525 | |
| 526 | /* |
| 527 | * This callback is likely called for the main interface. Update wpa_s |
| 528 | * to use the group interface if a new interface was created for the |
| 529 | * group. |
| 530 | */ |
| 531 | if (wpa_s->global->p2p_group_formation) |
| 532 | wpa_s = wpa_s->global->p2p_group_formation; |
| 533 | wpa_s->global->p2p_group_formation = NULL; |
| 534 | wpa_s->p2p_in_provisioning = 0; |
| 535 | |
| 536 | if (!success) { |
| 537 | wpa_msg(wpa_s->parent, MSG_INFO, |
| 538 | P2P_EVENT_GROUP_FORMATION_FAILURE); |
| 539 | wpas_p2p_group_delete(wpa_s); |
| 540 | return; |
| 541 | } |
| 542 | |
| 543 | wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS); |
| 544 | |
| 545 | ssid = wpa_s->current_ssid; |
| 546 | if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { |
| 547 | ssid->mode = WPAS_MODE_P2P_GO; |
| 548 | p2p_group_notif_formation_done(wpa_s->p2p_group); |
| 549 | wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL); |
| 550 | } |
| 551 | |
| 552 | persistent = 0; |
| 553 | if (ssid) { |
| 554 | ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len); |
| 555 | client = ssid->mode == WPAS_MODE_INFRA; |
| 556 | if (ssid->mode == WPAS_MODE_P2P_GO) { |
| 557 | persistent = ssid->p2p_persistent_group; |
Dmitry Shmidt | 497c1d5 | 2011-07-21 15:19:46 -0700 | [diff] [blame] | 558 | os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr, |
| 559 | ETH_ALEN); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 560 | } else |
| 561 | persistent = wpas_p2p_persistent_group(wpa_s, |
| 562 | go_dev_addr, |
| 563 | ssid->ssid, |
| 564 | ssid->ssid_len); |
| 565 | } else { |
| 566 | ssid_txt = ""; |
| 567 | client = wpa_s->p2p_group_interface == |
| 568 | P2P_GROUP_INTERFACE_CLIENT; |
| 569 | os_memset(go_dev_addr, 0, ETH_ALEN); |
| 570 | } |
| 571 | |
| 572 | wpa_s->show_group_started = 0; |
| 573 | if (client) { |
| 574 | /* |
| 575 | * Indicate event only after successfully completed 4-way |
| 576 | * handshake, i.e., when the interface is ready for data |
| 577 | * packets. |
| 578 | */ |
| 579 | wpa_s->show_group_started = 1; |
| 580 | } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) { |
| 581 | char psk[65]; |
| 582 | wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32); |
| 583 | wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED |
| 584 | "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR |
| 585 | "%s", |
| 586 | wpa_s->ifname, ssid_txt, ssid->frequency, psk, |
| 587 | MAC2STR(go_dev_addr), |
| 588 | persistent ? " [PERSISTENT]" : ""); |
| 589 | wpas_p2p_cross_connect_setup(wpa_s); |
| 590 | wpas_p2p_set_group_idle_timeout(wpa_s); |
| 591 | } else { |
| 592 | wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED |
| 593 | "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" " |
| 594 | "go_dev_addr=" MACSTR "%s", |
| 595 | wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0, |
| 596 | ssid && ssid->passphrase ? ssid->passphrase : "", |
| 597 | MAC2STR(go_dev_addr), |
| 598 | persistent ? " [PERSISTENT]" : ""); |
| 599 | wpas_p2p_cross_connect_setup(wpa_s); |
| 600 | wpas_p2p_set_group_idle_timeout(wpa_s); |
| 601 | } |
| 602 | |
| 603 | if (persistent) |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 604 | network_id = wpas_p2p_store_persistent_group(wpa_s->parent, |
| 605 | ssid, go_dev_addr); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 606 | if (network_id < 0 && ssid) |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 607 | network_id = ssid->id; |
| 608 | if (!client) |
| 609 | wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 610 | } |
| 611 | |
| 612 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 613 | static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s, |
| 614 | unsigned int freq, |
| 615 | const u8 *dst, const u8 *src, |
| 616 | const u8 *bssid, |
| 617 | const u8 *data, size_t data_len, |
| 618 | enum offchannel_send_action_result |
| 619 | result) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 620 | { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 621 | enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 622 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 623 | if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) |
| 624 | return; |
| 625 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 626 | return; |
| 627 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 628 | switch (result) { |
| 629 | case OFFCHANNEL_SEND_ACTION_SUCCESS: |
| 630 | res = P2P_SEND_ACTION_SUCCESS; |
| 631 | break; |
| 632 | case OFFCHANNEL_SEND_ACTION_NO_ACK: |
| 633 | res = P2P_SEND_ACTION_NO_ACK; |
| 634 | break; |
| 635 | case OFFCHANNEL_SEND_ACTION_FAILED: |
| 636 | res = P2P_SEND_ACTION_FAILED; |
| 637 | break; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 638 | } |
| 639 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 640 | p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 641 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 642 | if (result != OFFCHANNEL_SEND_ACTION_SUCCESS && |
| 643 | wpa_s->pending_pd_before_join && |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 644 | (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 || |
| 645 | os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 646 | wpa_s->pending_pd_before_join = 0; |
| 647 | wpa_printf(MSG_DEBUG, "P2P: Starting pending " |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 648 | "join-existing-group operation (no ACK for PD " |
| 649 | "Req)"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 650 | wpas_p2p_join_start(wpa_s); |
| 651 | } |
| 652 | } |
| 653 | |
| 654 | |
| 655 | static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst, |
| 656 | const u8 *src, const u8 *bssid, const u8 *buf, |
| 657 | size_t len, unsigned int wait_time) |
| 658 | { |
| 659 | struct wpa_supplicant *wpa_s = ctx; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 660 | return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len, |
| 661 | wait_time, |
| 662 | wpas_p2p_send_action_tx_status, 1); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 663 | } |
| 664 | |
| 665 | |
| 666 | static void wpas_send_action_done(void *ctx) |
| 667 | { |
| 668 | struct wpa_supplicant *wpa_s = ctx; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 669 | offchannel_send_action_done(wpa_s); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 670 | } |
| 671 | |
| 672 | |
| 673 | static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s, |
| 674 | struct p2p_go_neg_results *params) |
| 675 | { |
| 676 | if (wpa_s->go_params == NULL) { |
| 677 | wpa_s->go_params = os_malloc(sizeof(*params)); |
| 678 | if (wpa_s->go_params == NULL) |
| 679 | return -1; |
| 680 | } |
| 681 | os_memcpy(wpa_s->go_params, params, sizeof(*params)); |
| 682 | return 0; |
| 683 | } |
| 684 | |
| 685 | |
| 686 | static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s, |
| 687 | struct p2p_go_neg_results *res) |
| 688 | { |
| 689 | wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR, |
| 690 | MAC2STR(res->peer_interface_addr)); |
| 691 | wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID", |
| 692 | res->ssid, res->ssid_len); |
| 693 | wpa_supplicant_ap_deinit(wpa_s); |
| 694 | wpas_copy_go_neg_results(wpa_s, res); |
| 695 | if (res->wps_method == WPS_PBC) |
| 696 | wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1); |
| 697 | else { |
| 698 | u16 dev_pw_id = DEV_PW_DEFAULT; |
| 699 | if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD) |
| 700 | dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED; |
| 701 | wpas_wps_start_pin(wpa_s, res->peer_interface_addr, |
| 702 | wpa_s->p2p_pin, 1, dev_pw_id); |
| 703 | } |
| 704 | } |
| 705 | |
| 706 | |
| 707 | static void p2p_go_configured(void *ctx, void *data) |
| 708 | { |
| 709 | struct wpa_supplicant *wpa_s = ctx; |
| 710 | struct p2p_go_neg_results *params = data; |
| 711 | struct wpa_ssid *ssid; |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 712 | int network_id = -1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 713 | |
| 714 | ssid = wpa_s->current_ssid; |
| 715 | if (ssid && ssid->mode == WPAS_MODE_P2P_GO) { |
| 716 | wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning"); |
| 717 | if (wpa_s->global->p2p_group_formation == wpa_s) |
| 718 | wpa_s->global->p2p_group_formation = NULL; |
| 719 | wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED |
| 720 | "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" " |
| 721 | "go_dev_addr=" MACSTR "%s", |
| 722 | wpa_s->ifname, |
| 723 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len), |
| 724 | ssid->frequency, |
| 725 | params->passphrase ? params->passphrase : "", |
Dmitry Shmidt | 497c1d5 | 2011-07-21 15:19:46 -0700 | [diff] [blame] | 726 | MAC2STR(wpa_s->global->p2p_dev_addr), |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 727 | params->persistent_group ? " [PERSISTENT]" : ""); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 728 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 729 | if (params->persistent_group) |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 730 | network_id = wpas_p2p_store_persistent_group( |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 731 | wpa_s->parent, ssid, |
Dmitry Shmidt | 497c1d5 | 2011-07-21 15:19:46 -0700 | [diff] [blame] | 732 | wpa_s->global->p2p_dev_addr); |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 733 | if (network_id < 0) |
| 734 | network_id = ssid->id; |
| 735 | wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 736 | wpas_p2p_cross_connect_setup(wpa_s); |
| 737 | wpas_p2p_set_group_idle_timeout(wpa_s); |
| 738 | return; |
| 739 | } |
| 740 | |
| 741 | wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning"); |
| 742 | if (wpa_supplicant_ap_mac_addr_filter(wpa_s, |
| 743 | params->peer_interface_addr)) { |
| 744 | wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address " |
| 745 | "filtering"); |
| 746 | return; |
| 747 | } |
| 748 | if (params->wps_method == WPS_PBC) |
| 749 | wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr, |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 750 | params->peer_device_addr); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 751 | else if (wpa_s->p2p_pin[0]) |
| 752 | wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr, |
| 753 | wpa_s->p2p_pin, NULL, 0); |
| 754 | os_free(wpa_s->go_params); |
| 755 | wpa_s->go_params = NULL; |
| 756 | } |
| 757 | |
| 758 | |
| 759 | static void wpas_start_wps_go(struct wpa_supplicant *wpa_s, |
| 760 | struct p2p_go_neg_results *params, |
| 761 | int group_formation) |
| 762 | { |
| 763 | struct wpa_ssid *ssid; |
| 764 | |
| 765 | if (wpas_copy_go_neg_results(wpa_s, params) < 0) |
| 766 | return; |
| 767 | |
| 768 | ssid = wpa_config_add_network(wpa_s->conf); |
| 769 | if (ssid == NULL) |
| 770 | return; |
| 771 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 772 | wpa_s->show_group_started = 0; |
| 773 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 774 | wpa_config_set_network_defaults(ssid); |
| 775 | ssid->temporary = 1; |
| 776 | ssid->p2p_group = 1; |
| 777 | ssid->p2p_persistent_group = params->persistent_group; |
| 778 | ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION : |
| 779 | WPAS_MODE_P2P_GO; |
| 780 | ssid->frequency = params->freq; |
| 781 | ssid->ssid = os_zalloc(params->ssid_len + 1); |
| 782 | if (ssid->ssid) { |
| 783 | os_memcpy(ssid->ssid, params->ssid, params->ssid_len); |
| 784 | ssid->ssid_len = params->ssid_len; |
| 785 | } |
| 786 | ssid->auth_alg = WPA_AUTH_ALG_OPEN; |
| 787 | ssid->key_mgmt = WPA_KEY_MGMT_PSK; |
| 788 | ssid->proto = WPA_PROTO_RSN; |
| 789 | ssid->pairwise_cipher = WPA_CIPHER_CCMP; |
| 790 | ssid->passphrase = os_strdup(params->passphrase); |
| 791 | |
| 792 | wpa_s->ap_configured_cb = p2p_go_configured; |
| 793 | wpa_s->ap_configured_cb_ctx = wpa_s; |
| 794 | wpa_s->ap_configured_cb_data = wpa_s->go_params; |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 795 | wpa_s->connect_without_scan = ssid; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 796 | wpa_s->reassociate = 1; |
| 797 | wpa_s->disconnected = 0; |
| 798 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
| 799 | } |
| 800 | |
| 801 | |
| 802 | static void wpas_p2p_clone_config(struct wpa_supplicant *dst, |
| 803 | const struct wpa_supplicant *src) |
| 804 | { |
| 805 | struct wpa_config *d; |
| 806 | const struct wpa_config *s; |
| 807 | |
| 808 | d = dst->conf; |
| 809 | s = src->conf; |
| 810 | |
| 811 | #define C(n) if (s->n) d->n = os_strdup(s->n) |
| 812 | C(device_name); |
| 813 | C(manufacturer); |
| 814 | C(model_name); |
| 815 | C(model_number); |
| 816 | C(serial_number); |
| 817 | C(config_methods); |
| 818 | #undef C |
| 819 | |
| 820 | os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN); |
| 821 | os_memcpy(d->sec_device_type, s->sec_device_type, |
| 822 | sizeof(d->sec_device_type)); |
| 823 | d->num_sec_device_types = s->num_sec_device_types; |
| 824 | |
| 825 | d->p2p_group_idle = s->p2p_group_idle; |
| 826 | d->p2p_intra_bss = s->p2p_intra_bss; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 827 | d->persistent_reconnect = s->persistent_reconnect; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 828 | } |
| 829 | |
| 830 | |
| 831 | static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s, |
| 832 | enum wpa_driver_if_type type) |
| 833 | { |
| 834 | char ifname[120], force_ifname[120]; |
| 835 | |
| 836 | if (wpa_s->pending_interface_name[0]) { |
| 837 | wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists " |
| 838 | "- skip creation of a new one"); |
| 839 | if (is_zero_ether_addr(wpa_s->pending_interface_addr)) { |
| 840 | wpa_printf(MSG_DEBUG, "P2P: Pending virtual address " |
| 841 | "unknown?! ifname='%s'", |
| 842 | wpa_s->pending_interface_name); |
| 843 | return -1; |
| 844 | } |
| 845 | return 0; |
| 846 | } |
| 847 | |
| 848 | os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname, |
| 849 | wpa_s->p2p_group_idx); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 850 | if (os_strlen(ifname) >= IFNAMSIZ && |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 851 | os_strlen(wpa_s->ifname) < IFNAMSIZ) { |
| 852 | /* Try to avoid going over the IFNAMSIZ length limit */ |
| 853 | os_snprintf(ifname, sizeof(ifname), "p2p-%d", |
| 854 | wpa_s->p2p_group_idx); |
| 855 | } |
| 856 | force_ifname[0] = '\0'; |
| 857 | |
| 858 | wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group", |
| 859 | ifname); |
| 860 | wpa_s->p2p_group_idx++; |
| 861 | |
| 862 | wpa_s->pending_interface_type = type; |
| 863 | if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname, |
| 864 | wpa_s->pending_interface_addr, NULL) < 0) { |
| 865 | wpa_printf(MSG_ERROR, "P2P: Failed to create new group " |
| 866 | "interface"); |
| 867 | return -1; |
| 868 | } |
| 869 | |
| 870 | if (force_ifname[0]) { |
| 871 | wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s", |
| 872 | force_ifname); |
| 873 | os_strlcpy(wpa_s->pending_interface_name, force_ifname, |
| 874 | sizeof(wpa_s->pending_interface_name)); |
| 875 | } else |
| 876 | os_strlcpy(wpa_s->pending_interface_name, ifname, |
| 877 | sizeof(wpa_s->pending_interface_name)); |
| 878 | wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr " |
| 879 | MACSTR, wpa_s->pending_interface_name, |
| 880 | MAC2STR(wpa_s->pending_interface_addr)); |
| 881 | |
| 882 | return 0; |
| 883 | } |
| 884 | |
| 885 | |
| 886 | static void wpas_p2p_remove_pending_group_interface( |
| 887 | struct wpa_supplicant *wpa_s) |
| 888 | { |
| 889 | if (!wpa_s->pending_interface_name[0] || |
| 890 | is_zero_ether_addr(wpa_s->pending_interface_addr)) |
| 891 | return; /* No pending virtual interface */ |
| 892 | |
| 893 | wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s", |
| 894 | wpa_s->pending_interface_name); |
| 895 | wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type, |
| 896 | wpa_s->pending_interface_name); |
| 897 | os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN); |
| 898 | wpa_s->pending_interface_name[0] = '\0'; |
| 899 | } |
| 900 | |
| 901 | |
| 902 | static struct wpa_supplicant * |
| 903 | wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go) |
| 904 | { |
| 905 | struct wpa_interface iface; |
| 906 | struct wpa_supplicant *group_wpa_s; |
| 907 | |
| 908 | if (!wpa_s->pending_interface_name[0]) { |
| 909 | wpa_printf(MSG_ERROR, "P2P: No pending group interface"); |
| 910 | if (!wpas_p2p_create_iface(wpa_s)) |
| 911 | return NULL; |
| 912 | /* |
| 913 | * Something has forced us to remove the pending interface; try |
| 914 | * to create a new one and hope for the best that we will get |
| 915 | * the same local address. |
| 916 | */ |
| 917 | if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO : |
| 918 | WPA_IF_P2P_CLIENT) < 0) |
| 919 | return NULL; |
| 920 | } |
| 921 | |
| 922 | os_memset(&iface, 0, sizeof(iface)); |
| 923 | iface.ifname = wpa_s->pending_interface_name; |
| 924 | iface.driver = wpa_s->driver->name; |
| 925 | iface.ctrl_interface = wpa_s->conf->ctrl_interface; |
| 926 | iface.driver_param = wpa_s->conf->driver_param; |
| 927 | group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface); |
| 928 | if (group_wpa_s == NULL) { |
| 929 | wpa_printf(MSG_ERROR, "P2P: Failed to create new " |
| 930 | "wpa_supplicant interface"); |
| 931 | return NULL; |
| 932 | } |
| 933 | wpa_s->pending_interface_name[0] = '\0'; |
| 934 | group_wpa_s->parent = wpa_s; |
| 935 | group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO : |
| 936 | P2P_GROUP_INTERFACE_CLIENT; |
| 937 | wpa_s->global->p2p_group_formation = group_wpa_s; |
| 938 | |
| 939 | wpas_p2p_clone_config(group_wpa_s, wpa_s); |
| 940 | |
| 941 | return group_wpa_s; |
| 942 | } |
| 943 | |
| 944 | |
| 945 | static void wpas_p2p_group_formation_timeout(void *eloop_ctx, |
| 946 | void *timeout_ctx) |
| 947 | { |
| 948 | struct wpa_supplicant *wpa_s = eloop_ctx; |
| 949 | wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out"); |
| 950 | if (wpa_s->global->p2p) |
| 951 | p2p_group_formation_failed(wpa_s->global->p2p); |
| 952 | else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 953 | wpa_drv_p2p_group_formation_failed(wpa_s); |
| 954 | wpas_group_formation_completed(wpa_s, 0); |
| 955 | } |
| 956 | |
| 957 | |
| 958 | void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res) |
| 959 | { |
| 960 | struct wpa_supplicant *wpa_s = ctx; |
| 961 | |
| 962 | if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) { |
| 963 | wpa_drv_cancel_remain_on_channel(wpa_s); |
| 964 | wpa_s->off_channel_freq = 0; |
| 965 | wpa_s->roc_waiting_drv_freq = 0; |
| 966 | } |
| 967 | |
| 968 | if (res->status) { |
| 969 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d", |
| 970 | res->status); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 971 | wpas_notify_p2p_go_neg_completed(wpa_s, res); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 972 | wpas_p2p_remove_pending_group_interface(wpa_s); |
| 973 | return; |
| 974 | } |
| 975 | |
| 976 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 977 | wpas_notify_p2p_go_neg_completed(wpa_s, res); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 978 | |
| 979 | if (wpa_s->create_p2p_iface) { |
| 980 | struct wpa_supplicant *group_wpa_s = |
| 981 | wpas_p2p_init_group_interface(wpa_s, res->role_go); |
| 982 | if (group_wpa_s == NULL) { |
| 983 | wpas_p2p_remove_pending_group_interface(wpa_s); |
| 984 | return; |
| 985 | } |
| 986 | if (group_wpa_s != wpa_s) { |
| 987 | os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin, |
| 988 | sizeof(group_wpa_s->p2p_pin)); |
| 989 | group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method; |
| 990 | } |
| 991 | os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN); |
| 992 | wpa_s->pending_interface_name[0] = '\0'; |
| 993 | group_wpa_s->p2p_in_provisioning = 1; |
| 994 | |
| 995 | if (res->role_go) |
| 996 | wpas_start_wps_go(group_wpa_s, res, 1); |
| 997 | else |
| 998 | wpas_start_wps_enrollee(group_wpa_s, res); |
| 999 | } else { |
| 1000 | wpa_s->p2p_in_provisioning = 1; |
| 1001 | wpa_s->global->p2p_group_formation = wpa_s; |
| 1002 | |
| 1003 | if (res->role_go) |
| 1004 | wpas_start_wps_go(wpa_s, res, 1); |
| 1005 | else |
| 1006 | wpas_start_wps_enrollee(ctx, res); |
| 1007 | } |
| 1008 | |
| 1009 | wpa_s->p2p_long_listen = 0; |
| 1010 | eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL); |
| 1011 | |
| 1012 | eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL); |
| 1013 | eloop_register_timeout(15 + res->peer_config_timeout / 100, |
| 1014 | (res->peer_config_timeout % 100) * 10000, |
| 1015 | wpas_p2p_group_formation_timeout, wpa_s, NULL); |
| 1016 | } |
| 1017 | |
| 1018 | |
| 1019 | void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id) |
| 1020 | { |
| 1021 | struct wpa_supplicant *wpa_s = ctx; |
| 1022 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR |
| 1023 | " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id); |
| 1024 | |
| 1025 | wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id); |
| 1026 | } |
| 1027 | |
| 1028 | |
| 1029 | void wpas_dev_found(void *ctx, const u8 *addr, |
| 1030 | const struct p2p_peer_info *info, |
| 1031 | int new_device) |
| 1032 | { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1033 | #ifndef CONFIG_NO_STDOUT_DEBUG |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1034 | struct wpa_supplicant *wpa_s = ctx; |
| 1035 | char devtype[WPS_DEV_TYPE_BUFSIZE]; |
| 1036 | |
| 1037 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR |
| 1038 | " p2p_dev_addr=" MACSTR |
| 1039 | " pri_dev_type=%s name='%s' config_methods=0x%x " |
| 1040 | "dev_capab=0x%x group_capab=0x%x", |
| 1041 | MAC2STR(addr), MAC2STR(info->p2p_device_addr), |
| 1042 | wps_dev_type_bin2str(info->pri_dev_type, devtype, |
| 1043 | sizeof(devtype)), |
| 1044 | info->device_name, info->config_methods, |
| 1045 | info->dev_capab, info->group_capab); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1046 | #endif /* CONFIG_NO_STDOUT_DEBUG */ |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1047 | |
| 1048 | wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device); |
| 1049 | } |
| 1050 | |
| 1051 | |
| 1052 | static void wpas_dev_lost(void *ctx, const u8 *dev_addr) |
| 1053 | { |
| 1054 | struct wpa_supplicant *wpa_s = ctx; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1055 | |
Dmitry Shmidt | 497c1d5 | 2011-07-21 15:19:46 -0700 | [diff] [blame] | 1056 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST |
| 1057 | "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr)); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1058 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1059 | wpas_notify_p2p_device_lost(wpa_s, dev_addr); |
| 1060 | } |
| 1061 | |
| 1062 | |
| 1063 | static int wpas_start_listen(void *ctx, unsigned int freq, |
| 1064 | unsigned int duration, |
| 1065 | const struct wpabuf *probe_resp_ie) |
| 1066 | { |
| 1067 | struct wpa_supplicant *wpa_s = ctx; |
| 1068 | |
| 1069 | wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL); |
| 1070 | |
| 1071 | if (wpa_drv_probe_req_report(wpa_s, 1) < 0) { |
| 1072 | wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to " |
| 1073 | "report received Probe Request frames"); |
| 1074 | return -1; |
| 1075 | } |
| 1076 | |
| 1077 | wpa_s->pending_listen_freq = freq; |
| 1078 | wpa_s->pending_listen_duration = duration; |
| 1079 | |
| 1080 | if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) { |
| 1081 | wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver " |
| 1082 | "to remain on channel (%u MHz) for Listen " |
| 1083 | "state", freq); |
| 1084 | wpa_s->pending_listen_freq = 0; |
| 1085 | return -1; |
| 1086 | } |
| 1087 | wpa_s->off_channel_freq = 0; |
| 1088 | wpa_s->roc_waiting_drv_freq = freq; |
| 1089 | |
| 1090 | return 0; |
| 1091 | } |
| 1092 | |
| 1093 | |
| 1094 | static void wpas_stop_listen(void *ctx) |
| 1095 | { |
| 1096 | struct wpa_supplicant *wpa_s = ctx; |
| 1097 | if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) { |
| 1098 | wpa_drv_cancel_remain_on_channel(wpa_s); |
| 1099 | wpa_s->off_channel_freq = 0; |
| 1100 | wpa_s->roc_waiting_drv_freq = 0; |
| 1101 | } |
| 1102 | wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL); |
| 1103 | wpa_drv_probe_req_report(wpa_s, 0); |
| 1104 | } |
| 1105 | |
| 1106 | |
| 1107 | static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf) |
| 1108 | { |
| 1109 | struct wpa_supplicant *wpa_s = ctx; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1110 | return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1111 | } |
| 1112 | |
| 1113 | |
| 1114 | static struct p2p_srv_bonjour * |
| 1115 | wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s, |
| 1116 | const struct wpabuf *query) |
| 1117 | { |
| 1118 | struct p2p_srv_bonjour *bsrv; |
| 1119 | size_t len; |
| 1120 | |
| 1121 | len = wpabuf_len(query); |
| 1122 | dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour, |
| 1123 | struct p2p_srv_bonjour, list) { |
| 1124 | if (len == wpabuf_len(bsrv->query) && |
| 1125 | os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query), |
| 1126 | len) == 0) |
| 1127 | return bsrv; |
| 1128 | } |
| 1129 | return NULL; |
| 1130 | } |
| 1131 | |
| 1132 | |
| 1133 | static struct p2p_srv_upnp * |
| 1134 | wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version, |
| 1135 | const char *service) |
| 1136 | { |
| 1137 | struct p2p_srv_upnp *usrv; |
| 1138 | |
| 1139 | dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp, |
| 1140 | struct p2p_srv_upnp, list) { |
| 1141 | if (version == usrv->version && |
| 1142 | os_strcmp(service, usrv->service) == 0) |
| 1143 | return usrv; |
| 1144 | } |
| 1145 | return NULL; |
| 1146 | } |
| 1147 | |
| 1148 | |
| 1149 | static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto, |
| 1150 | u8 srv_trans_id) |
| 1151 | { |
| 1152 | u8 *len_pos; |
| 1153 | |
| 1154 | if (wpabuf_tailroom(resp) < 5) |
| 1155 | return; |
| 1156 | |
| 1157 | /* Length (to be filled) */ |
| 1158 | len_pos = wpabuf_put(resp, 2); |
| 1159 | wpabuf_put_u8(resp, srv_proto); |
| 1160 | wpabuf_put_u8(resp, srv_trans_id); |
| 1161 | /* Status Code */ |
| 1162 | wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE); |
| 1163 | /* Response Data: empty */ |
| 1164 | WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2); |
| 1165 | } |
| 1166 | |
| 1167 | |
| 1168 | static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s, |
| 1169 | struct wpabuf *resp, u8 srv_trans_id) |
| 1170 | { |
| 1171 | struct p2p_srv_bonjour *bsrv; |
| 1172 | u8 *len_pos; |
| 1173 | |
| 1174 | wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services"); |
| 1175 | |
| 1176 | if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) { |
| 1177 | wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available"); |
| 1178 | return; |
| 1179 | } |
| 1180 | |
| 1181 | dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour, |
| 1182 | struct p2p_srv_bonjour, list) { |
| 1183 | if (wpabuf_tailroom(resp) < |
| 1184 | 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) |
| 1185 | return; |
| 1186 | /* Length (to be filled) */ |
| 1187 | len_pos = wpabuf_put(resp, 2); |
| 1188 | wpabuf_put_u8(resp, P2P_SERV_BONJOUR); |
| 1189 | wpabuf_put_u8(resp, srv_trans_id); |
| 1190 | /* Status Code */ |
| 1191 | wpabuf_put_u8(resp, P2P_SD_SUCCESS); |
| 1192 | wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service", |
| 1193 | wpabuf_head(bsrv->resp), |
| 1194 | wpabuf_len(bsrv->resp)); |
| 1195 | /* Response Data */ |
| 1196 | wpabuf_put_buf(resp, bsrv->query); /* Key */ |
| 1197 | wpabuf_put_buf(resp, bsrv->resp); /* Value */ |
| 1198 | WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - |
| 1199 | 2); |
| 1200 | } |
| 1201 | } |
| 1202 | |
| 1203 | |
| 1204 | static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s, |
| 1205 | struct wpabuf *resp, u8 srv_trans_id, |
| 1206 | const u8 *query, size_t query_len) |
| 1207 | { |
| 1208 | struct p2p_srv_bonjour *bsrv; |
| 1209 | struct wpabuf buf; |
| 1210 | u8 *len_pos; |
| 1211 | |
| 1212 | wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour", |
| 1213 | query, query_len); |
| 1214 | if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) { |
| 1215 | wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available"); |
| 1216 | wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR, |
| 1217 | srv_trans_id); |
| 1218 | return; |
| 1219 | } |
| 1220 | |
| 1221 | if (query_len == 0) { |
| 1222 | wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id); |
| 1223 | return; |
| 1224 | } |
| 1225 | |
| 1226 | if (wpabuf_tailroom(resp) < 5) |
| 1227 | return; |
| 1228 | /* Length (to be filled) */ |
| 1229 | len_pos = wpabuf_put(resp, 2); |
| 1230 | wpabuf_put_u8(resp, P2P_SERV_BONJOUR); |
| 1231 | wpabuf_put_u8(resp, srv_trans_id); |
| 1232 | |
| 1233 | wpabuf_set(&buf, query, query_len); |
| 1234 | bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf); |
| 1235 | if (bsrv == NULL) { |
| 1236 | wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not " |
| 1237 | "available"); |
| 1238 | |
| 1239 | /* Status Code */ |
| 1240 | wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE); |
| 1241 | /* Response Data: empty */ |
| 1242 | WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - |
| 1243 | 2); |
| 1244 | return; |
| 1245 | } |
| 1246 | |
| 1247 | /* Status Code */ |
| 1248 | wpabuf_put_u8(resp, P2P_SD_SUCCESS); |
| 1249 | wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service", |
| 1250 | wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp)); |
| 1251 | |
| 1252 | if (wpabuf_tailroom(resp) >= |
| 1253 | wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) { |
| 1254 | /* Response Data */ |
| 1255 | wpabuf_put_buf(resp, bsrv->query); /* Key */ |
| 1256 | wpabuf_put_buf(resp, bsrv->resp); /* Value */ |
| 1257 | } |
| 1258 | WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2); |
| 1259 | } |
| 1260 | |
| 1261 | |
| 1262 | static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s, |
| 1263 | struct wpabuf *resp, u8 srv_trans_id) |
| 1264 | { |
| 1265 | struct p2p_srv_upnp *usrv; |
| 1266 | u8 *len_pos; |
| 1267 | |
| 1268 | wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services"); |
| 1269 | |
| 1270 | if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) { |
| 1271 | wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available"); |
| 1272 | return; |
| 1273 | } |
| 1274 | |
| 1275 | dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp, |
| 1276 | struct p2p_srv_upnp, list) { |
| 1277 | if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service)) |
| 1278 | return; |
| 1279 | |
| 1280 | /* Length (to be filled) */ |
| 1281 | len_pos = wpabuf_put(resp, 2); |
| 1282 | wpabuf_put_u8(resp, P2P_SERV_UPNP); |
| 1283 | wpabuf_put_u8(resp, srv_trans_id); |
| 1284 | |
| 1285 | /* Status Code */ |
| 1286 | wpabuf_put_u8(resp, P2P_SD_SUCCESS); |
| 1287 | /* Response Data */ |
| 1288 | wpabuf_put_u8(resp, usrv->version); |
| 1289 | wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s", |
| 1290 | usrv->service); |
| 1291 | wpabuf_put_str(resp, usrv->service); |
| 1292 | WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - |
| 1293 | 2); |
| 1294 | } |
| 1295 | } |
| 1296 | |
| 1297 | |
| 1298 | static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s, |
| 1299 | struct wpabuf *resp, u8 srv_trans_id, |
| 1300 | const u8 *query, size_t query_len) |
| 1301 | { |
| 1302 | struct p2p_srv_upnp *usrv; |
| 1303 | u8 *len_pos; |
| 1304 | u8 version; |
| 1305 | char *str; |
| 1306 | int count = 0; |
| 1307 | |
| 1308 | wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP", |
| 1309 | query, query_len); |
| 1310 | |
| 1311 | if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) { |
| 1312 | wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available"); |
| 1313 | wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP, |
| 1314 | srv_trans_id); |
| 1315 | return; |
| 1316 | } |
| 1317 | |
| 1318 | if (query_len == 0) { |
| 1319 | wpas_sd_all_upnp(wpa_s, resp, srv_trans_id); |
| 1320 | return; |
| 1321 | } |
| 1322 | |
| 1323 | if (wpabuf_tailroom(resp) < 5) |
| 1324 | return; |
| 1325 | |
| 1326 | /* Length (to be filled) */ |
| 1327 | len_pos = wpabuf_put(resp, 2); |
| 1328 | wpabuf_put_u8(resp, P2P_SERV_UPNP); |
| 1329 | wpabuf_put_u8(resp, srv_trans_id); |
| 1330 | |
| 1331 | version = query[0]; |
| 1332 | str = os_malloc(query_len); |
| 1333 | if (str == NULL) |
| 1334 | return; |
| 1335 | os_memcpy(str, query + 1, query_len - 1); |
| 1336 | str[query_len - 1] = '\0'; |
| 1337 | |
| 1338 | dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp, |
| 1339 | struct p2p_srv_upnp, list) { |
| 1340 | if (version != usrv->version) |
| 1341 | continue; |
| 1342 | |
| 1343 | if (os_strcmp(str, "ssdp:all") != 0 && |
| 1344 | os_strstr(usrv->service, str) == NULL) |
| 1345 | continue; |
| 1346 | |
| 1347 | if (wpabuf_tailroom(resp) < 2) |
| 1348 | break; |
| 1349 | if (count == 0) { |
| 1350 | /* Status Code */ |
| 1351 | wpabuf_put_u8(resp, P2P_SD_SUCCESS); |
| 1352 | /* Response Data */ |
| 1353 | wpabuf_put_u8(resp, version); |
| 1354 | } else |
| 1355 | wpabuf_put_u8(resp, ','); |
| 1356 | |
| 1357 | count++; |
| 1358 | |
| 1359 | wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s", |
| 1360 | usrv->service); |
| 1361 | if (wpabuf_tailroom(resp) < os_strlen(usrv->service)) |
| 1362 | break; |
| 1363 | wpabuf_put_str(resp, usrv->service); |
| 1364 | } |
| 1365 | os_free(str); |
| 1366 | |
| 1367 | if (count == 0) { |
| 1368 | wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not " |
| 1369 | "available"); |
| 1370 | /* Status Code */ |
| 1371 | wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE); |
| 1372 | /* Response Data: empty */ |
| 1373 | } |
| 1374 | |
| 1375 | WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2); |
| 1376 | } |
| 1377 | |
| 1378 | |
| 1379 | void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token, |
| 1380 | u16 update_indic, const u8 *tlvs, size_t tlvs_len) |
| 1381 | { |
| 1382 | struct wpa_supplicant *wpa_s = ctx; |
| 1383 | const u8 *pos = tlvs; |
| 1384 | const u8 *end = tlvs + tlvs_len; |
| 1385 | const u8 *tlv_end; |
| 1386 | u16 slen; |
| 1387 | struct wpabuf *resp; |
| 1388 | u8 srv_proto, srv_trans_id; |
| 1389 | size_t buf_len; |
| 1390 | char *buf; |
| 1391 | |
| 1392 | wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs", |
| 1393 | tlvs, tlvs_len); |
| 1394 | buf_len = 2 * tlvs_len + 1; |
| 1395 | buf = os_malloc(buf_len); |
| 1396 | if (buf) { |
| 1397 | wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len); |
| 1398 | wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d " |
| 1399 | MACSTR " %u %u %s", |
| 1400 | freq, MAC2STR(sa), dialog_token, update_indic, |
| 1401 | buf); |
| 1402 | os_free(buf); |
| 1403 | } |
| 1404 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1405 | if (wpa_s->p2p_sd_over_ctrl_iface) { |
| 1406 | wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token, |
| 1407 | update_indic, tlvs, tlvs_len); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1408 | return; /* to be processed by an external program */ |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1409 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1410 | |
| 1411 | resp = wpabuf_alloc(10000); |
| 1412 | if (resp == NULL) |
| 1413 | return; |
| 1414 | |
| 1415 | while (pos + 1 < end) { |
| 1416 | wpa_printf(MSG_DEBUG, "P2P: Service Request TLV"); |
| 1417 | slen = WPA_GET_LE16(pos); |
| 1418 | pos += 2; |
| 1419 | if (pos + slen > end || slen < 2) { |
| 1420 | wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data " |
| 1421 | "length"); |
| 1422 | wpabuf_free(resp); |
| 1423 | return; |
| 1424 | } |
| 1425 | tlv_end = pos + slen; |
| 1426 | |
| 1427 | srv_proto = *pos++; |
| 1428 | wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u", |
| 1429 | srv_proto); |
| 1430 | srv_trans_id = *pos++; |
| 1431 | wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u", |
| 1432 | srv_trans_id); |
| 1433 | |
| 1434 | wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data", |
| 1435 | pos, tlv_end - pos); |
| 1436 | |
| 1437 | |
| 1438 | if (wpa_s->force_long_sd) { |
| 1439 | wpa_printf(MSG_DEBUG, "P2P: SD test - force long " |
| 1440 | "response"); |
| 1441 | wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id); |
| 1442 | wpas_sd_all_upnp(wpa_s, resp, srv_trans_id); |
| 1443 | goto done; |
| 1444 | } |
| 1445 | |
| 1446 | switch (srv_proto) { |
| 1447 | case P2P_SERV_ALL_SERVICES: |
| 1448 | wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request " |
| 1449 | "for all services"); |
| 1450 | if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) && |
| 1451 | dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) { |
| 1452 | wpa_printf(MSG_DEBUG, "P2P: No service " |
| 1453 | "discovery protocols available"); |
| 1454 | wpas_sd_add_proto_not_avail( |
| 1455 | resp, P2P_SERV_ALL_SERVICES, |
| 1456 | srv_trans_id); |
| 1457 | break; |
| 1458 | } |
| 1459 | wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id); |
| 1460 | wpas_sd_all_upnp(wpa_s, resp, srv_trans_id); |
| 1461 | break; |
| 1462 | case P2P_SERV_BONJOUR: |
| 1463 | wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id, |
| 1464 | pos, tlv_end - pos); |
| 1465 | break; |
| 1466 | case P2P_SERV_UPNP: |
| 1467 | wpas_sd_req_upnp(wpa_s, resp, srv_trans_id, |
| 1468 | pos, tlv_end - pos); |
| 1469 | break; |
| 1470 | default: |
| 1471 | wpa_printf(MSG_DEBUG, "P2P: Unavailable service " |
| 1472 | "protocol %u", srv_proto); |
| 1473 | wpas_sd_add_proto_not_avail(resp, srv_proto, |
| 1474 | srv_trans_id); |
| 1475 | break; |
| 1476 | } |
| 1477 | |
| 1478 | pos = tlv_end; |
| 1479 | } |
| 1480 | |
| 1481 | done: |
| 1482 | wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token, |
| 1483 | update_indic, tlvs, tlvs_len); |
| 1484 | |
| 1485 | wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp); |
| 1486 | |
| 1487 | wpabuf_free(resp); |
| 1488 | } |
| 1489 | |
| 1490 | |
| 1491 | void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic, |
| 1492 | const u8 *tlvs, size_t tlvs_len) |
| 1493 | { |
| 1494 | struct wpa_supplicant *wpa_s = ctx; |
| 1495 | const u8 *pos = tlvs; |
| 1496 | const u8 *end = tlvs + tlvs_len; |
| 1497 | const u8 *tlv_end; |
| 1498 | u16 slen; |
| 1499 | size_t buf_len; |
| 1500 | char *buf; |
| 1501 | |
| 1502 | wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs", |
| 1503 | tlvs, tlvs_len); |
| 1504 | if (tlvs_len > 1500) { |
| 1505 | /* TODO: better way for handling this */ |
| 1506 | wpa_msg_ctrl(wpa_s, MSG_INFO, |
| 1507 | P2P_EVENT_SERV_DISC_RESP MACSTR |
| 1508 | " %u <long response: %u bytes>", |
| 1509 | MAC2STR(sa), update_indic, |
| 1510 | (unsigned int) tlvs_len); |
| 1511 | } else { |
| 1512 | buf_len = 2 * tlvs_len + 1; |
| 1513 | buf = os_malloc(buf_len); |
| 1514 | if (buf) { |
| 1515 | wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len); |
| 1516 | wpa_msg_ctrl(wpa_s, MSG_INFO, |
| 1517 | P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s", |
| 1518 | MAC2STR(sa), update_indic, buf); |
| 1519 | os_free(buf); |
| 1520 | } |
| 1521 | } |
| 1522 | |
| 1523 | while (pos < end) { |
| 1524 | u8 srv_proto, srv_trans_id, status; |
| 1525 | |
| 1526 | wpa_printf(MSG_DEBUG, "P2P: Service Response TLV"); |
| 1527 | slen = WPA_GET_LE16(pos); |
| 1528 | pos += 2; |
| 1529 | if (pos + slen > end || slen < 3) { |
| 1530 | wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data " |
| 1531 | "length"); |
| 1532 | return; |
| 1533 | } |
| 1534 | tlv_end = pos + slen; |
| 1535 | |
| 1536 | srv_proto = *pos++; |
| 1537 | wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u", |
| 1538 | srv_proto); |
| 1539 | srv_trans_id = *pos++; |
| 1540 | wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u", |
| 1541 | srv_trans_id); |
| 1542 | status = *pos++; |
| 1543 | wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u", |
| 1544 | status); |
| 1545 | |
| 1546 | wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data", |
| 1547 | pos, tlv_end - pos); |
| 1548 | |
| 1549 | pos = tlv_end; |
| 1550 | } |
| 1551 | |
| 1552 | wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len); |
| 1553 | } |
| 1554 | |
| 1555 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1556 | u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst, |
| 1557 | const struct wpabuf *tlvs) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1558 | { |
| 1559 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1560 | return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1561 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1562 | return 0; |
| 1563 | return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1564 | } |
| 1565 | |
| 1566 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1567 | u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst, |
| 1568 | u8 version, const char *query) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1569 | { |
| 1570 | struct wpabuf *tlvs; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1571 | u64 ret; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1572 | |
| 1573 | tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query)); |
| 1574 | if (tlvs == NULL) |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1575 | return 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1576 | wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query)); |
| 1577 | wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */ |
| 1578 | wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */ |
| 1579 | wpabuf_put_u8(tlvs, version); |
| 1580 | wpabuf_put_str(tlvs, query); |
| 1581 | ret = wpas_p2p_sd_request(wpa_s, dst, tlvs); |
| 1582 | wpabuf_free(tlvs); |
| 1583 | return ret; |
| 1584 | } |
| 1585 | |
| 1586 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1587 | int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1588 | { |
| 1589 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1590 | return wpa_drv_p2p_sd_cancel_request(wpa_s, req); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1591 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 1592 | return -1; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1593 | return p2p_sd_cancel_request(wpa_s->global->p2p, |
| 1594 | (void *) (uintptr_t) req); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1595 | } |
| 1596 | |
| 1597 | |
| 1598 | void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq, |
| 1599 | const u8 *dst, u8 dialog_token, |
| 1600 | const struct wpabuf *resp_tlvs) |
| 1601 | { |
| 1602 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) { |
| 1603 | wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token, |
| 1604 | resp_tlvs); |
| 1605 | return; |
| 1606 | } |
| 1607 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 1608 | return; |
| 1609 | p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token, |
| 1610 | resp_tlvs); |
| 1611 | } |
| 1612 | |
| 1613 | |
| 1614 | void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s) |
| 1615 | { |
| 1616 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) { |
| 1617 | wpa_drv_p2p_service_update(wpa_s); |
| 1618 | return; |
| 1619 | } |
| 1620 | if (wpa_s->global->p2p) |
| 1621 | p2p_sd_service_update(wpa_s->global->p2p); |
| 1622 | } |
| 1623 | |
| 1624 | |
| 1625 | static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv) |
| 1626 | { |
| 1627 | dl_list_del(&bsrv->list); |
| 1628 | wpabuf_free(bsrv->query); |
| 1629 | wpabuf_free(bsrv->resp); |
| 1630 | os_free(bsrv); |
| 1631 | } |
| 1632 | |
| 1633 | |
| 1634 | static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv) |
| 1635 | { |
| 1636 | dl_list_del(&usrv->list); |
| 1637 | os_free(usrv->service); |
| 1638 | os_free(usrv); |
| 1639 | } |
| 1640 | |
| 1641 | |
| 1642 | void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s) |
| 1643 | { |
| 1644 | struct p2p_srv_bonjour *bsrv, *bn; |
| 1645 | struct p2p_srv_upnp *usrv, *un; |
| 1646 | |
| 1647 | dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour, |
| 1648 | struct p2p_srv_bonjour, list) |
| 1649 | wpas_p2p_srv_bonjour_free(bsrv); |
| 1650 | |
| 1651 | dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp, |
| 1652 | struct p2p_srv_upnp, list) |
| 1653 | wpas_p2p_srv_upnp_free(usrv); |
| 1654 | |
| 1655 | wpas_p2p_sd_service_update(wpa_s); |
| 1656 | } |
| 1657 | |
| 1658 | |
| 1659 | int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s, |
| 1660 | struct wpabuf *query, struct wpabuf *resp) |
| 1661 | { |
| 1662 | struct p2p_srv_bonjour *bsrv; |
| 1663 | |
| 1664 | bsrv = wpas_p2p_service_get_bonjour(wpa_s, query); |
| 1665 | if (bsrv) { |
| 1666 | wpabuf_free(query); |
| 1667 | wpabuf_free(bsrv->resp); |
| 1668 | bsrv->resp = resp; |
| 1669 | return 0; |
| 1670 | } |
| 1671 | |
| 1672 | bsrv = os_zalloc(sizeof(*bsrv)); |
| 1673 | if (bsrv == NULL) |
| 1674 | return -1; |
| 1675 | bsrv->query = query; |
| 1676 | bsrv->resp = resp; |
| 1677 | dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list); |
| 1678 | |
| 1679 | wpas_p2p_sd_service_update(wpa_s); |
| 1680 | return 0; |
| 1681 | } |
| 1682 | |
| 1683 | |
| 1684 | int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s, |
| 1685 | const struct wpabuf *query) |
| 1686 | { |
| 1687 | struct p2p_srv_bonjour *bsrv; |
| 1688 | |
| 1689 | bsrv = wpas_p2p_service_get_bonjour(wpa_s, query); |
| 1690 | if (bsrv == NULL) |
| 1691 | return -1; |
| 1692 | wpas_p2p_srv_bonjour_free(bsrv); |
| 1693 | wpas_p2p_sd_service_update(wpa_s); |
| 1694 | return 0; |
| 1695 | } |
| 1696 | |
| 1697 | |
| 1698 | int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version, |
| 1699 | const char *service) |
| 1700 | { |
| 1701 | struct p2p_srv_upnp *usrv; |
| 1702 | |
| 1703 | if (wpas_p2p_service_get_upnp(wpa_s, version, service)) |
| 1704 | return 0; /* Already listed */ |
| 1705 | usrv = os_zalloc(sizeof(*usrv)); |
| 1706 | if (usrv == NULL) |
| 1707 | return -1; |
| 1708 | usrv->version = version; |
| 1709 | usrv->service = os_strdup(service); |
| 1710 | if (usrv->service == NULL) { |
| 1711 | os_free(usrv); |
| 1712 | return -1; |
| 1713 | } |
| 1714 | dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list); |
| 1715 | |
| 1716 | wpas_p2p_sd_service_update(wpa_s); |
| 1717 | return 0; |
| 1718 | } |
| 1719 | |
| 1720 | |
| 1721 | int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version, |
| 1722 | const char *service) |
| 1723 | { |
| 1724 | struct p2p_srv_upnp *usrv; |
| 1725 | |
| 1726 | usrv = wpas_p2p_service_get_upnp(wpa_s, version, service); |
| 1727 | if (usrv == NULL) |
| 1728 | return -1; |
| 1729 | wpas_p2p_srv_upnp_free(usrv); |
| 1730 | wpas_p2p_sd_service_update(wpa_s); |
| 1731 | return 0; |
| 1732 | } |
| 1733 | |
| 1734 | |
| 1735 | static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s, |
| 1736 | const u8 *peer, const char *params, |
| 1737 | unsigned int generated_pin) |
| 1738 | { |
| 1739 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s", |
| 1740 | MAC2STR(peer), generated_pin, params); |
| 1741 | } |
| 1742 | |
| 1743 | |
| 1744 | static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s, |
| 1745 | const u8 *peer, const char *params) |
| 1746 | { |
| 1747 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s", |
| 1748 | MAC2STR(peer), params); |
| 1749 | } |
| 1750 | |
| 1751 | |
| 1752 | void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods, |
| 1753 | const u8 *dev_addr, const u8 *pri_dev_type, |
| 1754 | const char *dev_name, u16 supp_config_methods, |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1755 | u8 dev_capab, u8 group_capab, const u8 *group_id, |
| 1756 | size_t group_id_len) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1757 | { |
| 1758 | struct wpa_supplicant *wpa_s = ctx; |
| 1759 | char devtype[WPS_DEV_TYPE_BUFSIZE]; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1760 | char params[300]; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1761 | u8 empty_dev_type[8]; |
| 1762 | unsigned int generated_pin = 0; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1763 | struct wpa_supplicant *group = NULL; |
| 1764 | |
| 1765 | if (group_id) { |
| 1766 | for (group = wpa_s->global->ifaces; group; group = group->next) |
| 1767 | { |
| 1768 | struct wpa_ssid *s = group->current_ssid; |
| 1769 | if (s != NULL && |
| 1770 | s->mode == WPAS_MODE_P2P_GO && |
| 1771 | group_id_len - ETH_ALEN == s->ssid_len && |
| 1772 | os_memcmp(group_id + ETH_ALEN, s->ssid, |
| 1773 | s->ssid_len) == 0) |
| 1774 | break; |
| 1775 | } |
| 1776 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1777 | |
| 1778 | if (pri_dev_type == NULL) { |
| 1779 | os_memset(empty_dev_type, 0, sizeof(empty_dev_type)); |
| 1780 | pri_dev_type = empty_dev_type; |
| 1781 | } |
| 1782 | os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR |
| 1783 | " pri_dev_type=%s name='%s' config_methods=0x%x " |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1784 | "dev_capab=0x%x group_capab=0x%x%s%s", |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1785 | MAC2STR(dev_addr), |
| 1786 | wps_dev_type_bin2str(pri_dev_type, devtype, |
| 1787 | sizeof(devtype)), |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1788 | dev_name, supp_config_methods, dev_capab, group_capab, |
| 1789 | group ? " group=" : "", |
| 1790 | group ? group->ifname : ""); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1791 | params[sizeof(params) - 1] = '\0'; |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 1792 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1793 | if (config_methods & WPS_CONFIG_DISPLAY) { |
| 1794 | generated_pin = wps_generate_pin(); |
| 1795 | wpas_prov_disc_local_display(wpa_s, peer, params, |
| 1796 | generated_pin); |
| 1797 | } else if (config_methods & WPS_CONFIG_KEYPAD) |
| 1798 | wpas_prov_disc_local_keypad(wpa_s, peer, params); |
| 1799 | else if (config_methods & WPS_CONFIG_PUSHBUTTON) |
| 1800 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR |
| 1801 | "%s", MAC2STR(peer), params); |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 1802 | |
| 1803 | wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */, |
| 1804 | P2P_PROV_DISC_SUCCESS, |
| 1805 | config_methods, generated_pin); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1806 | } |
| 1807 | |
| 1808 | |
| 1809 | void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods) |
| 1810 | { |
| 1811 | struct wpa_supplicant *wpa_s = ctx; |
| 1812 | unsigned int generated_pin = 0; |
| 1813 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 1814 | if (wpa_s->pending_pd_before_join && |
| 1815 | (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 || |
| 1816 | os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) { |
| 1817 | wpa_s->pending_pd_before_join = 0; |
| 1818 | wpa_printf(MSG_DEBUG, "P2P: Starting pending " |
| 1819 | "join-existing-group operation"); |
| 1820 | wpas_p2p_join_start(wpa_s); |
| 1821 | return; |
| 1822 | } |
| 1823 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1824 | if (config_methods & WPS_CONFIG_DISPLAY) |
| 1825 | wpas_prov_disc_local_keypad(wpa_s, peer, ""); |
| 1826 | else if (config_methods & WPS_CONFIG_KEYPAD) { |
| 1827 | generated_pin = wps_generate_pin(); |
| 1828 | wpas_prov_disc_local_display(wpa_s, peer, "", generated_pin); |
| 1829 | } else if (config_methods & WPS_CONFIG_PUSHBUTTON) |
| 1830 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR, |
| 1831 | MAC2STR(peer)); |
| 1832 | |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 1833 | wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */, |
| 1834 | P2P_PROV_DISC_SUCCESS, |
| 1835 | config_methods, generated_pin); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1836 | } |
| 1837 | |
| 1838 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 1839 | static void wpas_prov_disc_fail(void *ctx, const u8 *peer, |
| 1840 | enum p2p_prov_disc_status status) |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 1841 | { |
| 1842 | struct wpa_supplicant *wpa_s = ctx; |
| 1843 | |
| 1844 | wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */, |
| 1845 | status, 0, 0); |
| 1846 | } |
| 1847 | |
| 1848 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1849 | static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid, |
| 1850 | const u8 *go_dev_addr, const u8 *ssid, |
| 1851 | size_t ssid_len, int *go, u8 *group_bssid, |
| 1852 | int *force_freq, int persistent_group) |
| 1853 | { |
| 1854 | struct wpa_supplicant *wpa_s = ctx; |
| 1855 | struct wpa_ssid *s; |
| 1856 | u8 cur_bssid[ETH_ALEN]; |
| 1857 | int res; |
| 1858 | struct wpa_supplicant *grp; |
| 1859 | |
| 1860 | if (!persistent_group) { |
| 1861 | wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR |
| 1862 | " to join an active group", MAC2STR(sa)); |
| 1863 | if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) && |
| 1864 | (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN) |
| 1865 | == 0 || |
| 1866 | os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) { |
| 1867 | wpa_printf(MSG_DEBUG, "P2P: Accept previously " |
| 1868 | "authorized invitation"); |
| 1869 | goto accept_inv; |
| 1870 | } |
| 1871 | /* |
| 1872 | * Do not accept the invitation automatically; notify user and |
| 1873 | * request approval. |
| 1874 | */ |
| 1875 | return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; |
| 1876 | } |
| 1877 | |
| 1878 | grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go); |
| 1879 | if (grp) { |
| 1880 | wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already " |
| 1881 | "running persistent group"); |
| 1882 | if (*go) |
| 1883 | os_memcpy(group_bssid, grp->own_addr, ETH_ALEN); |
| 1884 | goto accept_inv; |
| 1885 | } |
| 1886 | |
| 1887 | if (!wpa_s->conf->persistent_reconnect) |
| 1888 | return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; |
| 1889 | |
| 1890 | for (s = wpa_s->conf->ssid; s; s = s->next) { |
| 1891 | if (s->disabled == 2 && |
| 1892 | os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 && |
| 1893 | s->ssid_len == ssid_len && |
| 1894 | os_memcmp(ssid, s->ssid, ssid_len) == 0) |
| 1895 | break; |
| 1896 | } |
| 1897 | |
| 1898 | if (!s) { |
| 1899 | wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR |
| 1900 | " requested reinvocation of an unknown group", |
| 1901 | MAC2STR(sa)); |
| 1902 | return P2P_SC_FAIL_UNKNOWN_GROUP; |
| 1903 | } |
| 1904 | |
| 1905 | if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) { |
| 1906 | *go = 1; |
| 1907 | if (wpa_s->wpa_state >= WPA_AUTHENTICATING) { |
| 1908 | wpa_printf(MSG_DEBUG, "P2P: The only available " |
| 1909 | "interface is already in use - reject " |
| 1910 | "invitation"); |
| 1911 | return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE; |
| 1912 | } |
| 1913 | os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN); |
| 1914 | } else if (s->mode == WPAS_MODE_P2P_GO) { |
| 1915 | *go = 1; |
| 1916 | if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0) |
| 1917 | { |
| 1918 | wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new " |
| 1919 | "interface address for the group"); |
| 1920 | return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE; |
| 1921 | } |
| 1922 | os_memcpy(group_bssid, wpa_s->pending_interface_addr, |
| 1923 | ETH_ALEN); |
| 1924 | } |
| 1925 | |
| 1926 | accept_inv: |
| 1927 | if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 && |
| 1928 | wpa_s->assoc_freq) { |
| 1929 | wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match " |
| 1930 | "the channel we are already using"); |
| 1931 | *force_freq = wpa_s->assoc_freq; |
| 1932 | } |
| 1933 | |
| 1934 | res = wpa_drv_shared_freq(wpa_s); |
| 1935 | if (res > 0) { |
| 1936 | wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match " |
| 1937 | "with the channel we are already using on a " |
| 1938 | "shared interface"); |
| 1939 | *force_freq = res; |
| 1940 | } |
| 1941 | |
| 1942 | return P2P_SC_SUCCESS; |
| 1943 | } |
| 1944 | |
| 1945 | |
| 1946 | static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid, |
| 1947 | const u8 *ssid, size_t ssid_len, |
| 1948 | const u8 *go_dev_addr, u8 status, |
| 1949 | int op_freq) |
| 1950 | { |
| 1951 | struct wpa_supplicant *wpa_s = ctx; |
| 1952 | struct wpa_ssid *s; |
| 1953 | |
| 1954 | for (s = wpa_s->conf->ssid; s; s = s->next) { |
| 1955 | if (s->disabled == 2 && |
| 1956 | s->ssid_len == ssid_len && |
| 1957 | os_memcmp(ssid, s->ssid, ssid_len) == 0) |
| 1958 | break; |
| 1959 | } |
| 1960 | |
| 1961 | if (status == P2P_SC_SUCCESS) { |
| 1962 | wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR |
| 1963 | " was accepted; op_freq=%d MHz", |
| 1964 | MAC2STR(sa), op_freq); |
| 1965 | if (s) { |
| 1966 | wpas_p2p_group_add_persistent( |
| 1967 | wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0); |
| 1968 | } else if (bssid) { |
| 1969 | wpas_p2p_join(wpa_s, bssid, go_dev_addr, |
| 1970 | wpa_s->p2p_wps_method); |
| 1971 | } |
| 1972 | return; |
| 1973 | } |
| 1974 | |
| 1975 | if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) { |
| 1976 | wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR |
| 1977 | " was rejected (status %u)", MAC2STR(sa), status); |
| 1978 | return; |
| 1979 | } |
| 1980 | |
| 1981 | if (!s) { |
| 1982 | if (bssid) { |
| 1983 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED |
| 1984 | "sa=" MACSTR " go_dev_addr=" MACSTR |
| 1985 | " bssid=" MACSTR " unknown-network", |
| 1986 | MAC2STR(sa), MAC2STR(go_dev_addr), |
| 1987 | MAC2STR(bssid)); |
| 1988 | } else { |
| 1989 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED |
| 1990 | "sa=" MACSTR " go_dev_addr=" MACSTR |
| 1991 | " unknown-network", |
| 1992 | MAC2STR(sa), MAC2STR(go_dev_addr)); |
| 1993 | } |
| 1994 | return; |
| 1995 | } |
| 1996 | |
| 1997 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR |
| 1998 | " persistent=%d", MAC2STR(sa), s->id); |
| 1999 | } |
| 2000 | |
| 2001 | |
| 2002 | static void wpas_invitation_result(void *ctx, int status, const u8 *bssid) |
| 2003 | { |
| 2004 | struct wpa_supplicant *wpa_s = ctx; |
| 2005 | struct wpa_ssid *ssid; |
| 2006 | |
| 2007 | if (bssid) { |
| 2008 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT |
| 2009 | "status=%d " MACSTR, |
| 2010 | status, MAC2STR(bssid)); |
| 2011 | } else { |
| 2012 | wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT |
| 2013 | "status=%d ", status); |
| 2014 | } |
| 2015 | wpas_notify_p2p_invitation_result(wpa_s, status, bssid); |
| 2016 | |
| 2017 | if (wpa_s->pending_invite_ssid_id == -1) |
| 2018 | return; /* Invitation to active group */ |
| 2019 | |
| 2020 | if (status != P2P_SC_SUCCESS) { |
| 2021 | wpas_p2p_remove_pending_group_interface(wpa_s); |
| 2022 | return; |
| 2023 | } |
| 2024 | |
| 2025 | ssid = wpa_config_get_network(wpa_s->conf, |
| 2026 | wpa_s->pending_invite_ssid_id); |
| 2027 | if (ssid == NULL) { |
| 2028 | wpa_printf(MSG_ERROR, "P2P: Could not find persistent group " |
| 2029 | "data matching with invitation"); |
| 2030 | return; |
| 2031 | } |
| 2032 | |
| 2033 | wpas_p2p_group_add_persistent(wpa_s, ssid, |
| 2034 | ssid->mode == WPAS_MODE_P2P_GO, 0); |
| 2035 | } |
| 2036 | |
| 2037 | |
| 2038 | static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s, |
| 2039 | struct p2p_channels *chan) |
| 2040 | { |
| 2041 | int i, cla = 0; |
| 2042 | |
| 2043 | wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz " |
| 2044 | "band"); |
| 2045 | |
| 2046 | /* Operating class 81 - 2.4 GHz band channels 1..13 */ |
| 2047 | chan->reg_class[cla].reg_class = 81; |
| 2048 | chan->reg_class[cla].channels = 11; |
| 2049 | for (i = 0; i < 11; i++) |
| 2050 | chan->reg_class[cla].channel[i] = i + 1; |
| 2051 | cla++; |
| 2052 | |
| 2053 | wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz " |
| 2054 | "band"); |
| 2055 | |
| 2056 | /* Operating class 115 - 5 GHz, channels 36-48 */ |
| 2057 | chan->reg_class[cla].reg_class = 115; |
| 2058 | chan->reg_class[cla].channels = 4; |
| 2059 | chan->reg_class[cla].channel[0] = 36; |
| 2060 | chan->reg_class[cla].channel[1] = 40; |
| 2061 | chan->reg_class[cla].channel[2] = 44; |
| 2062 | chan->reg_class[cla].channel[3] = 48; |
| 2063 | cla++; |
| 2064 | |
| 2065 | wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz " |
| 2066 | "band"); |
| 2067 | |
| 2068 | /* Operating class 124 - 5 GHz, channels 149,153,157,161 */ |
| 2069 | chan->reg_class[cla].reg_class = 124; |
| 2070 | chan->reg_class[cla].channels = 4; |
| 2071 | chan->reg_class[cla].channel[0] = 149; |
| 2072 | chan->reg_class[cla].channel[1] = 153; |
| 2073 | chan->reg_class[cla].channel[2] = 157; |
| 2074 | chan->reg_class[cla].channel[3] = 161; |
| 2075 | cla++; |
| 2076 | |
| 2077 | chan->reg_classes = cla; |
| 2078 | return 0; |
| 2079 | } |
| 2080 | |
| 2081 | |
| 2082 | static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes, |
| 2083 | u16 num_modes, |
| 2084 | enum hostapd_hw_mode mode) |
| 2085 | { |
| 2086 | u16 i; |
| 2087 | |
| 2088 | for (i = 0; i < num_modes; i++) { |
| 2089 | if (modes[i].mode == mode) |
| 2090 | return &modes[i]; |
| 2091 | } |
| 2092 | |
| 2093 | return NULL; |
| 2094 | } |
| 2095 | |
| 2096 | |
| 2097 | static int has_channel(struct hostapd_hw_modes *mode, u8 chan, int *flags) |
| 2098 | { |
| 2099 | int i; |
| 2100 | |
| 2101 | for (i = 0; i < mode->num_channels; i++) { |
| 2102 | if (mode->channels[i].chan == chan) { |
| 2103 | if (flags) |
| 2104 | *flags = mode->channels[i].flag; |
| 2105 | return !(mode->channels[i].flag & |
| 2106 | (HOSTAPD_CHAN_DISABLED | |
| 2107 | HOSTAPD_CHAN_PASSIVE_SCAN | |
| 2108 | HOSTAPD_CHAN_NO_IBSS | |
| 2109 | HOSTAPD_CHAN_RADAR)); |
| 2110 | } |
| 2111 | } |
| 2112 | |
| 2113 | return 0; |
| 2114 | } |
| 2115 | |
| 2116 | |
| 2117 | struct p2p_oper_class_map { |
| 2118 | enum hostapd_hw_mode mode; |
| 2119 | u8 op_class; |
| 2120 | u8 min_chan; |
| 2121 | u8 max_chan; |
| 2122 | u8 inc; |
| 2123 | enum { BW20, BW40PLUS, BW40MINUS } bw; |
| 2124 | }; |
| 2125 | |
| 2126 | static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s, |
| 2127 | struct p2p_channels *chan) |
| 2128 | { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2129 | struct hostapd_hw_modes *mode; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2130 | int cla, op; |
| 2131 | struct p2p_oper_class_map op_class[] = { |
| 2132 | { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 }, |
| 2133 | { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1, BW20 }, |
| 2134 | #if 0 /* Do not enable HT40 on 2 GHz for now */ |
| 2135 | { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS }, |
| 2136 | { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS }, |
| 2137 | #endif |
| 2138 | { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 }, |
| 2139 | { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 }, |
| 2140 | { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS }, |
| 2141 | { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS }, |
| 2142 | { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS }, |
| 2143 | { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS }, |
| 2144 | { -1, 0, 0, 0, 0, BW20 } |
| 2145 | }; |
| 2146 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2147 | if (wpa_s->hw.modes == NULL) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2148 | wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching " |
| 2149 | "of all supported channels; assume dualband " |
| 2150 | "support"); |
| 2151 | return wpas_p2p_default_channels(wpa_s, chan); |
| 2152 | } |
| 2153 | |
| 2154 | cla = 0; |
| 2155 | |
| 2156 | for (op = 0; op_class[op].op_class; op++) { |
| 2157 | struct p2p_oper_class_map *o = &op_class[op]; |
| 2158 | u8 ch; |
| 2159 | struct p2p_reg_class *reg = NULL; |
| 2160 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2161 | mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2162 | if (mode == NULL) |
| 2163 | continue; |
| 2164 | for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) { |
| 2165 | int flag; |
| 2166 | if (!has_channel(mode, ch, &flag)) |
| 2167 | continue; |
| 2168 | if (o->bw == BW40MINUS && |
| 2169 | (!(flag & HOSTAPD_CHAN_HT40MINUS) || |
| 2170 | !has_channel(mode, ch - 4, NULL))) |
| 2171 | continue; |
| 2172 | if (o->bw == BW40PLUS && |
| 2173 | (!(flag & HOSTAPD_CHAN_HT40PLUS) || |
| 2174 | !has_channel(mode, ch + 4, NULL))) |
| 2175 | continue; |
| 2176 | if (reg == NULL) { |
| 2177 | wpa_printf(MSG_DEBUG, "P2P: Add operating " |
| 2178 | "class %u", o->op_class); |
| 2179 | reg = &chan->reg_class[cla]; |
| 2180 | cla++; |
| 2181 | reg->reg_class = o->op_class; |
| 2182 | } |
| 2183 | reg->channel[reg->channels] = ch; |
| 2184 | reg->channels++; |
| 2185 | } |
| 2186 | if (reg) { |
| 2187 | wpa_hexdump(MSG_DEBUG, "P2P: Channels", |
| 2188 | reg->channel, reg->channels); |
| 2189 | } |
| 2190 | } |
| 2191 | |
| 2192 | chan->reg_classes = cla; |
| 2193 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2194 | return 0; |
| 2195 | } |
| 2196 | |
| 2197 | |
| 2198 | static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf, |
| 2199 | size_t buf_len) |
| 2200 | { |
| 2201 | struct wpa_supplicant *wpa_s = ctx; |
| 2202 | |
| 2203 | for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
| 2204 | if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0) |
| 2205 | break; |
| 2206 | } |
| 2207 | if (wpa_s == NULL) |
| 2208 | return -1; |
| 2209 | |
| 2210 | return wpa_drv_get_noa(wpa_s, buf, buf_len); |
| 2211 | } |
| 2212 | |
| 2213 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2214 | static int wpas_go_connected(void *ctx, const u8 *dev_addr) |
| 2215 | { |
| 2216 | struct wpa_supplicant *wpa_s = ctx; |
| 2217 | |
| 2218 | for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
| 2219 | struct wpa_ssid *ssid = wpa_s->current_ssid; |
| 2220 | if (ssid == NULL) |
| 2221 | continue; |
| 2222 | if (ssid->mode != WPAS_MODE_INFRA) |
| 2223 | continue; |
| 2224 | if (wpa_s->wpa_state != WPA_COMPLETED && |
| 2225 | wpa_s->wpa_state != WPA_GROUP_HANDSHAKE) |
| 2226 | continue; |
| 2227 | if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0) |
| 2228 | return 1; |
| 2229 | } |
| 2230 | |
| 2231 | return 0; |
| 2232 | } |
| 2233 | |
| 2234 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2235 | /** |
| 2236 | * wpas_p2p_init - Initialize P2P module for %wpa_supplicant |
| 2237 | * @global: Pointer to global data from wpa_supplicant_init() |
| 2238 | * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface() |
| 2239 | * Returns: 0 on success, -1 on failure |
| 2240 | */ |
| 2241 | int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s) |
| 2242 | { |
| 2243 | struct p2p_config p2p; |
| 2244 | unsigned int r; |
| 2245 | int i; |
| 2246 | |
| 2247 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)) |
| 2248 | return 0; |
| 2249 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2250 | if (global->p2p) |
| 2251 | return 0; |
| 2252 | |
| 2253 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) { |
| 2254 | struct p2p_params params; |
| 2255 | |
| 2256 | wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management"); |
| 2257 | os_memset(¶ms, 0, sizeof(params)); |
| 2258 | params.dev_name = wpa_s->conf->device_name; |
| 2259 | os_memcpy(params.pri_dev_type, wpa_s->conf->device_type, |
| 2260 | WPS_DEV_TYPE_LEN); |
| 2261 | params.num_sec_dev_types = wpa_s->conf->num_sec_device_types; |
| 2262 | os_memcpy(params.sec_dev_type, |
| 2263 | wpa_s->conf->sec_device_type, |
| 2264 | params.num_sec_dev_types * WPS_DEV_TYPE_LEN); |
| 2265 | |
| 2266 | if (wpa_drv_p2p_set_params(wpa_s, ¶ms) < 0) |
| 2267 | return -1; |
| 2268 | |
| 2269 | return 0; |
| 2270 | } |
| 2271 | |
| 2272 | os_memset(&p2p, 0, sizeof(p2p)); |
| 2273 | p2p.msg_ctx = wpa_s; |
| 2274 | p2p.cb_ctx = wpa_s; |
| 2275 | p2p.p2p_scan = wpas_p2p_scan; |
| 2276 | p2p.send_action = wpas_send_action; |
| 2277 | p2p.send_action_done = wpas_send_action_done; |
| 2278 | p2p.go_neg_completed = wpas_go_neg_completed; |
| 2279 | p2p.go_neg_req_rx = wpas_go_neg_req_rx; |
| 2280 | p2p.dev_found = wpas_dev_found; |
| 2281 | p2p.dev_lost = wpas_dev_lost; |
| 2282 | p2p.start_listen = wpas_start_listen; |
| 2283 | p2p.stop_listen = wpas_stop_listen; |
| 2284 | p2p.send_probe_resp = wpas_send_probe_resp; |
| 2285 | p2p.sd_request = wpas_sd_request; |
| 2286 | p2p.sd_response = wpas_sd_response; |
| 2287 | p2p.prov_disc_req = wpas_prov_disc_req; |
| 2288 | p2p.prov_disc_resp = wpas_prov_disc_resp; |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2289 | p2p.prov_disc_fail = wpas_prov_disc_fail; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2290 | p2p.invitation_process = wpas_invitation_process; |
| 2291 | p2p.invitation_received = wpas_invitation_received; |
| 2292 | p2p.invitation_result = wpas_invitation_result; |
| 2293 | p2p.get_noa = wpas_get_noa; |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2294 | p2p.go_connected = wpas_go_connected; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2295 | |
| 2296 | os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2297 | os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2298 | p2p.dev_name = wpa_s->conf->device_name; |
| 2299 | p2p.manufacturer = wpa_s->conf->manufacturer; |
| 2300 | p2p.model_name = wpa_s->conf->model_name; |
| 2301 | p2p.model_number = wpa_s->conf->model_number; |
| 2302 | p2p.serial_number = wpa_s->conf->serial_number; |
| 2303 | if (wpa_s->wps) { |
| 2304 | os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16); |
| 2305 | p2p.config_methods = wpa_s->wps->config_methods; |
| 2306 | } |
| 2307 | |
| 2308 | if (wpa_s->conf->p2p_listen_reg_class && |
| 2309 | wpa_s->conf->p2p_listen_channel) { |
| 2310 | p2p.reg_class = wpa_s->conf->p2p_listen_reg_class; |
| 2311 | p2p.channel = wpa_s->conf->p2p_listen_channel; |
| 2312 | } else { |
| 2313 | p2p.reg_class = 81; |
| 2314 | /* |
| 2315 | * Pick one of the social channels randomly as the listen |
| 2316 | * channel. |
| 2317 | */ |
| 2318 | os_get_random((u8 *) &r, sizeof(r)); |
| 2319 | p2p.channel = 1 + (r % 3) * 5; |
| 2320 | } |
| 2321 | wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel); |
| 2322 | |
| 2323 | if (wpa_s->conf->p2p_oper_reg_class && |
| 2324 | wpa_s->conf->p2p_oper_channel) { |
| 2325 | p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class; |
| 2326 | p2p.op_channel = wpa_s->conf->p2p_oper_channel; |
| 2327 | p2p.cfg_op_channel = 1; |
| 2328 | wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: " |
| 2329 | "%d:%d", p2p.op_reg_class, p2p.op_channel); |
| 2330 | |
| 2331 | } else { |
| 2332 | p2p.op_reg_class = 81; |
| 2333 | /* |
| 2334 | * Use random operation channel from (1, 6, 11) if no other |
| 2335 | * preference is indicated. |
| 2336 | */ |
| 2337 | os_get_random((u8 *) &r, sizeof(r)); |
| 2338 | p2p.op_channel = 1 + (r % 3) * 5; |
| 2339 | p2p.cfg_op_channel = 0; |
| 2340 | wpa_printf(MSG_DEBUG, "P2P: Random operating channel: " |
| 2341 | "%d:%d", p2p.op_reg_class, p2p.op_channel); |
| 2342 | } |
| 2343 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) { |
| 2344 | os_memcpy(p2p.country, wpa_s->conf->country, 2); |
| 2345 | p2p.country[2] = 0x04; |
| 2346 | } else |
| 2347 | os_memcpy(p2p.country, "XX\x04", 3); |
| 2348 | |
| 2349 | if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) { |
| 2350 | wpa_printf(MSG_ERROR, "P2P: Failed to configure supported " |
| 2351 | "channel list"); |
| 2352 | return -1; |
| 2353 | } |
| 2354 | |
| 2355 | os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type, |
| 2356 | WPS_DEV_TYPE_LEN); |
| 2357 | |
| 2358 | p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types; |
| 2359 | os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type, |
| 2360 | p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN); |
| 2361 | |
| 2362 | p2p.concurrent_operations = !!(wpa_s->drv_flags & |
| 2363 | WPA_DRIVER_FLAGS_P2P_CONCURRENT); |
| 2364 | |
| 2365 | p2p.max_peers = 100; |
| 2366 | |
| 2367 | if (wpa_s->conf->p2p_ssid_postfix) { |
| 2368 | p2p.ssid_postfix_len = |
| 2369 | os_strlen(wpa_s->conf->p2p_ssid_postfix); |
| 2370 | if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix)) |
| 2371 | p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix); |
| 2372 | os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix, |
| 2373 | p2p.ssid_postfix_len); |
| 2374 | } |
| 2375 | |
| 2376 | p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss; |
| 2377 | |
| 2378 | global->p2p = p2p_init(&p2p); |
| 2379 | if (global->p2p == NULL) |
| 2380 | return -1; |
| 2381 | |
| 2382 | for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) { |
| 2383 | if (wpa_s->conf->wps_vendor_ext[i] == NULL) |
| 2384 | continue; |
| 2385 | p2p_add_wps_vendor_extension( |
| 2386 | global->p2p, wpa_s->conf->wps_vendor_ext[i]); |
| 2387 | } |
| 2388 | |
| 2389 | return 0; |
| 2390 | } |
| 2391 | |
| 2392 | |
| 2393 | /** |
| 2394 | * wpas_p2p_deinit - Deinitialize per-interface P2P data |
| 2395 | * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface() |
| 2396 | * |
| 2397 | * This function deinitialize per-interface P2P data. |
| 2398 | */ |
| 2399 | void wpas_p2p_deinit(struct wpa_supplicant *wpa_s) |
| 2400 | { |
| 2401 | if (wpa_s->driver && wpa_s->drv_priv) |
| 2402 | wpa_drv_probe_req_report(wpa_s, 0); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2403 | |
| 2404 | if (wpa_s->go_params) { |
| 2405 | /* Clear any stored provisioning info */ |
| 2406 | p2p_clear_provisioning_info( |
| 2407 | wpa_s->global->p2p, |
| 2408 | wpa_s->go_params->peer_interface_addr); |
| 2409 | } |
| 2410 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2411 | os_free(wpa_s->go_params); |
| 2412 | wpa_s->go_params = NULL; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2413 | eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL); |
| 2414 | eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL); |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2415 | eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2416 | wpa_s->p2p_long_listen = 0; |
| 2417 | eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL); |
| 2418 | eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL); |
| 2419 | wpas_p2p_remove_pending_group_interface(wpa_s); |
| 2420 | |
| 2421 | /* TODO: remove group interface from the driver if this wpa_s instance |
| 2422 | * is on top of a P2P group interface */ |
| 2423 | } |
| 2424 | |
| 2425 | |
| 2426 | /** |
| 2427 | * wpas_p2p_deinit_global - Deinitialize global P2P module |
| 2428 | * @global: Pointer to global data from wpa_supplicant_init() |
| 2429 | * |
| 2430 | * This function deinitializes the global (per device) P2P module. |
| 2431 | */ |
| 2432 | void wpas_p2p_deinit_global(struct wpa_global *global) |
| 2433 | { |
| 2434 | struct wpa_supplicant *wpa_s, *tmp; |
| 2435 | char *ifname; |
| 2436 | |
| 2437 | if (global->p2p == NULL) |
| 2438 | return; |
| 2439 | |
| 2440 | /* Remove remaining P2P group interfaces */ |
| 2441 | wpa_s = global->ifaces; |
| 2442 | if (wpa_s) |
| 2443 | wpas_p2p_service_flush(wpa_s); |
| 2444 | while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) |
| 2445 | wpa_s = wpa_s->next; |
| 2446 | while (wpa_s) { |
| 2447 | enum wpa_driver_if_type type; |
| 2448 | tmp = global->ifaces; |
| 2449 | while (tmp && |
| 2450 | (tmp == wpa_s || |
| 2451 | tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) { |
| 2452 | tmp = tmp->next; |
| 2453 | } |
| 2454 | if (tmp == NULL) |
| 2455 | break; |
| 2456 | ifname = os_strdup(tmp->ifname); |
| 2457 | type = wpas_p2p_if_type(tmp->p2p_group_interface); |
Dmitry Shmidt | e15c7b5 | 2011-08-03 15:04:35 -0700 | [diff] [blame] | 2458 | wpa_supplicant_remove_iface(global, tmp, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2459 | if (ifname) |
| 2460 | wpa_drv_if_remove(wpa_s, type, ifname); |
| 2461 | os_free(ifname); |
| 2462 | } |
| 2463 | |
| 2464 | /* |
| 2465 | * Deinit GO data on any possibly remaining interface (if main |
| 2466 | * interface is used as GO). |
| 2467 | */ |
| 2468 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
| 2469 | if (wpa_s->ap_iface) |
| 2470 | wpas_p2p_group_deinit(wpa_s); |
| 2471 | } |
| 2472 | |
| 2473 | p2p_deinit(global->p2p); |
| 2474 | global->p2p = NULL; |
| 2475 | } |
| 2476 | |
| 2477 | |
| 2478 | static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s) |
| 2479 | { |
| 2480 | if (wpa_s->drv_flags & |
| 2481 | (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE | |
| 2482 | WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P)) |
| 2483 | return 1; /* P2P group requires a new interface in every case |
| 2484 | */ |
| 2485 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT)) |
| 2486 | return 0; /* driver does not support concurrent operations */ |
| 2487 | if (wpa_s->global->ifaces->next) |
| 2488 | return 1; /* more that one interface already in use */ |
| 2489 | if (wpa_s->wpa_state >= WPA_AUTHENTICATING) |
| 2490 | return 1; /* this interface is already in use */ |
| 2491 | return 0; |
| 2492 | } |
| 2493 | |
| 2494 | |
| 2495 | static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s, |
| 2496 | const u8 *peer_addr, |
| 2497 | enum p2p_wps_method wps_method, |
| 2498 | int go_intent, const u8 *own_interface_addr, |
| 2499 | unsigned int force_freq, int persistent_group) |
| 2500 | { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2501 | if (persistent_group && wpa_s->conf->persistent_reconnect) |
| 2502 | persistent_group = 2; |
| 2503 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2504 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) { |
| 2505 | return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method, |
| 2506 | go_intent, own_interface_addr, |
| 2507 | force_freq, persistent_group); |
| 2508 | } |
| 2509 | |
| 2510 | return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method, |
| 2511 | go_intent, own_interface_addr, force_freq, |
| 2512 | persistent_group); |
| 2513 | } |
| 2514 | |
| 2515 | |
| 2516 | static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s, |
| 2517 | const u8 *peer_addr, |
| 2518 | enum p2p_wps_method wps_method, |
| 2519 | int go_intent, const u8 *own_interface_addr, |
| 2520 | unsigned int force_freq, int persistent_group) |
| 2521 | { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2522 | if (persistent_group && wpa_s->conf->persistent_reconnect) |
| 2523 | persistent_group = 2; |
| 2524 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2525 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 2526 | return -1; |
| 2527 | |
| 2528 | return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method, |
| 2529 | go_intent, own_interface_addr, force_freq, |
| 2530 | persistent_group); |
| 2531 | } |
| 2532 | |
| 2533 | |
| 2534 | static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s) |
| 2535 | { |
| 2536 | wpa_s->p2p_join_scan_count++; |
| 2537 | wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d", |
| 2538 | wpa_s->p2p_join_scan_count); |
| 2539 | if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) { |
| 2540 | wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR |
| 2541 | " for join operationg - stop join attempt", |
| 2542 | MAC2STR(wpa_s->pending_join_iface_addr)); |
| 2543 | eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL); |
| 2544 | wpa_msg(wpa_s->parent, MSG_INFO, |
| 2545 | P2P_EVENT_GROUP_FORMATION_FAILURE); |
| 2546 | } |
| 2547 | } |
| 2548 | |
| 2549 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2550 | static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx, void *timeout_ctx) |
| 2551 | { |
| 2552 | struct wpa_supplicant *wpa_s = eloop_ctx; |
| 2553 | if (!wpa_s->pending_pd_before_join) |
| 2554 | return; |
| 2555 | /* |
| 2556 | * Provision Discovery Response may have been lost - try to connect |
| 2557 | * anyway since we do not need any information from this PD. |
| 2558 | */ |
| 2559 | wpa_printf(MSG_DEBUG, "P2P: PD timeout for join-existing-group - " |
| 2560 | "try to connect anyway"); |
| 2561 | wpas_p2p_join_start(wpa_s); |
| 2562 | } |
| 2563 | |
| 2564 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2565 | static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s, |
| 2566 | struct wpa_scan_results *scan_res) |
| 2567 | { |
| 2568 | struct wpa_bss *bss; |
| 2569 | int freq; |
| 2570 | u8 iface_addr[ETH_ALEN]; |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2571 | #ifdef ANDROID_P2P |
| 2572 | int shared_freq = 0; |
| 2573 | #endif |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2574 | eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL); |
| 2575 | |
| 2576 | if (wpa_s->global->p2p_disabled) |
| 2577 | return; |
| 2578 | |
| 2579 | wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join", |
| 2580 | scan_res ? (int) scan_res->num : -1); |
| 2581 | |
| 2582 | if (scan_res) |
| 2583 | wpas_p2p_scan_res_handler(wpa_s, scan_res); |
| 2584 | |
| 2585 | freq = p2p_get_oper_freq(wpa_s->global->p2p, |
| 2586 | wpa_s->pending_join_iface_addr); |
| 2587 | if (freq < 0 && |
| 2588 | p2p_get_interface_addr(wpa_s->global->p2p, |
| 2589 | wpa_s->pending_join_dev_addr, |
| 2590 | iface_addr) == 0 && |
| 2591 | os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0) |
| 2592 | { |
| 2593 | wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface " |
| 2594 | "address for join from " MACSTR " to " MACSTR |
| 2595 | " based on newly discovered P2P peer entry", |
| 2596 | MAC2STR(wpa_s->pending_join_iface_addr), |
| 2597 | MAC2STR(iface_addr)); |
| 2598 | os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, |
| 2599 | ETH_ALEN); |
| 2600 | |
| 2601 | freq = p2p_get_oper_freq(wpa_s->global->p2p, |
| 2602 | wpa_s->pending_join_iface_addr); |
| 2603 | } |
| 2604 | if (freq >= 0) { |
| 2605 | wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency " |
| 2606 | "from P2P peer table: %d MHz", freq); |
| 2607 | } |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2608 | |
| 2609 | #ifdef ANDROID_P2P |
| 2610 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT) && |
| 2611 | ((shared_freq = wpa_drv_shared_freq(wpa_s)) > 0) && (shared_freq != freq)) { |
| 2612 | wpa_msg(wpa_s->parent, MSG_INFO, |
| 2613 | P2P_EVENT_GROUP_FORMATION_FAILURE "reason=FREQ_CONFLICT"); |
| 2614 | return; |
| 2615 | } |
| 2616 | #endif |
| 2617 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2618 | bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr); |
| 2619 | if (bss) { |
| 2620 | freq = bss->freq; |
| 2621 | wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency " |
| 2622 | "from BSS table: %d MHz", freq); |
| 2623 | } |
| 2624 | if (freq > 0) { |
| 2625 | u16 method; |
| 2626 | |
| 2627 | wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request " |
| 2628 | "prior to joining an existing group (GO " MACSTR |
| 2629 | " freq=%u MHz)", |
| 2630 | MAC2STR(wpa_s->pending_join_dev_addr), freq); |
| 2631 | wpa_s->pending_pd_before_join = 1; |
| 2632 | |
| 2633 | switch (wpa_s->pending_join_wps_method) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2634 | case WPS_PIN_DISPLAY: |
| 2635 | method = WPS_CONFIG_KEYPAD; |
| 2636 | break; |
| 2637 | case WPS_PIN_KEYPAD: |
| 2638 | method = WPS_CONFIG_DISPLAY; |
| 2639 | break; |
| 2640 | case WPS_PBC: |
| 2641 | method = WPS_CONFIG_PUSHBUTTON; |
| 2642 | break; |
| 2643 | default: |
| 2644 | method = 0; |
| 2645 | break; |
| 2646 | } |
| 2647 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2648 | if ((p2p_get_provisioning_info(wpa_s->global->p2p, |
| 2649 | wpa_s->pending_join_dev_addr) == |
| 2650 | method)) { |
| 2651 | /* |
| 2652 | * We have already performed provision discovery for |
| 2653 | * joining the group. Proceed directly to join |
| 2654 | * operation without duplicated provision discovery. */ |
| 2655 | wpa_printf(MSG_DEBUG, "P2P: Provision discovery " |
| 2656 | "with " MACSTR " already done - proceed to " |
| 2657 | "join", |
| 2658 | MAC2STR(wpa_s->pending_join_dev_addr)); |
| 2659 | wpa_s->pending_pd_before_join = 0; |
| 2660 | goto start; |
| 2661 | } |
| 2662 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2663 | if (p2p_prov_disc_req(wpa_s->global->p2p, |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2664 | wpa_s->pending_join_dev_addr, method, 1, |
| 2665 | freq) < 0) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2666 | wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision " |
| 2667 | "Discovery Request before joining an " |
| 2668 | "existing group"); |
| 2669 | wpa_s->pending_pd_before_join = 0; |
| 2670 | goto start; |
| 2671 | } |
| 2672 | |
| 2673 | /* |
| 2674 | * Actual join operation will be started from the Action frame |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2675 | * TX status callback (if no ACK is received) or when the |
| 2676 | * Provision Discovery Response is received. Use a short |
| 2677 | * timeout as a backup mechanism should the Provision Discovery |
| 2678 | * Response be lost for any reason. |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2679 | */ |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2680 | eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, |
| 2681 | NULL); |
| 2682 | eloop_register_timeout(2, 0, wpas_p2p_pd_before_join_timeout, |
| 2683 | wpa_s, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2684 | return; |
| 2685 | } |
| 2686 | |
| 2687 | wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later"); |
| 2688 | eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL); |
| 2689 | eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL); |
| 2690 | wpas_p2p_check_join_scan_limit(wpa_s); |
| 2691 | return; |
| 2692 | |
| 2693 | start: |
| 2694 | /* Start join operation immediately */ |
| 2695 | wpas_p2p_join_start(wpa_s); |
| 2696 | } |
| 2697 | |
| 2698 | |
| 2699 | static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx) |
| 2700 | { |
| 2701 | struct wpa_supplicant *wpa_s = eloop_ctx; |
| 2702 | int ret; |
| 2703 | struct wpa_driver_scan_params params; |
| 2704 | struct wpabuf *wps_ie, *ies; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2705 | size_t ielen; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2706 | |
| 2707 | os_memset(¶ms, 0, sizeof(params)); |
| 2708 | |
| 2709 | /* P2P Wildcard SSID */ |
| 2710 | params.num_ssids = 1; |
| 2711 | params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID; |
| 2712 | params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN; |
| 2713 | |
| 2714 | wpa_s->wps->dev.p2p = 1; |
| 2715 | wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid, |
| 2716 | WPS_REQ_ENROLLEE, 0, NULL); |
| 2717 | if (wps_ie == NULL) { |
| 2718 | wpas_p2p_scan_res_join(wpa_s, NULL); |
| 2719 | return; |
| 2720 | } |
| 2721 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2722 | ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p); |
| 2723 | ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2724 | if (ies == NULL) { |
| 2725 | wpabuf_free(wps_ie); |
| 2726 | wpas_p2p_scan_res_join(wpa_s, NULL); |
| 2727 | return; |
| 2728 | } |
| 2729 | wpabuf_put_buf(ies, wps_ie); |
| 2730 | wpabuf_free(wps_ie); |
| 2731 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2732 | p2p_scan_ie(wpa_s->global->p2p, ies, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2733 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2734 | params.p2p_probe = 1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2735 | params.extra_ies = wpabuf_head(ies); |
| 2736 | params.extra_ies_len = wpabuf_len(ies); |
| 2737 | |
| 2738 | /* |
| 2739 | * Run a scan to update BSS table and start Provision Discovery once |
| 2740 | * the new scan results become available. |
| 2741 | */ |
| 2742 | wpa_s->scan_res_handler = wpas_p2p_scan_res_join; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2743 | ret = wpa_drv_scan(wpa_s, ¶ms); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2744 | |
| 2745 | wpabuf_free(ies); |
| 2746 | |
| 2747 | if (ret) { |
| 2748 | wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - " |
| 2749 | "try again later"); |
| 2750 | eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL); |
| 2751 | eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL); |
| 2752 | wpas_p2p_check_join_scan_limit(wpa_s); |
| 2753 | } |
| 2754 | } |
| 2755 | |
| 2756 | |
| 2757 | static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr, |
| 2758 | const u8 *dev_addr, enum p2p_wps_method wps_method) |
| 2759 | { |
| 2760 | wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface " |
| 2761 | MACSTR " dev " MACSTR ")", |
| 2762 | MAC2STR(iface_addr), MAC2STR(dev_addr)); |
| 2763 | |
| 2764 | os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN); |
| 2765 | os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN); |
| 2766 | wpa_s->pending_join_wps_method = wps_method; |
| 2767 | |
| 2768 | /* Make sure we are not running find during connection establishment */ |
| 2769 | wpas_p2p_stop_find(wpa_s); |
| 2770 | |
| 2771 | wpa_s->p2p_join_scan_count = 0; |
| 2772 | wpas_p2p_join_scan(wpa_s, NULL); |
| 2773 | return 0; |
| 2774 | } |
| 2775 | |
| 2776 | |
| 2777 | static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s) |
| 2778 | { |
| 2779 | struct wpa_supplicant *group; |
| 2780 | struct p2p_go_neg_results res; |
| 2781 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2782 | eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2783 | group = wpas_p2p_get_group_iface(wpa_s, 0, 0); |
| 2784 | if (group == NULL) |
| 2785 | return -1; |
| 2786 | if (group != wpa_s) { |
| 2787 | os_memcpy(group->p2p_pin, wpa_s->p2p_pin, |
| 2788 | sizeof(group->p2p_pin)); |
| 2789 | group->p2p_wps_method = wpa_s->p2p_wps_method; |
| 2790 | } |
| 2791 | |
| 2792 | group->p2p_in_provisioning = 1; |
| 2793 | |
| 2794 | os_memset(&res, 0, sizeof(res)); |
| 2795 | os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr, |
| 2796 | ETH_ALEN); |
| 2797 | res.wps_method = wpa_s->pending_join_wps_method; |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 2798 | if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) { |
| 2799 | wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to " |
| 2800 | "starting client"); |
| 2801 | wpa_drv_cancel_remain_on_channel(wpa_s); |
| 2802 | wpa_s->off_channel_freq = 0; |
| 2803 | wpa_s->roc_waiting_drv_freq = 0; |
| 2804 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2805 | wpas_start_wps_enrollee(group, &res); |
| 2806 | |
| 2807 | /* |
| 2808 | * Allow a longer timeout for join-a-running-group than normal 15 |
| 2809 | * second group formation timeout since the GO may not have authorized |
| 2810 | * our connection yet. |
| 2811 | */ |
| 2812 | eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL); |
| 2813 | eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout, |
| 2814 | wpa_s, NULL); |
| 2815 | |
| 2816 | return 0; |
| 2817 | } |
| 2818 | |
| 2819 | |
| 2820 | /** |
| 2821 | * wpas_p2p_connect - Request P2P Group Formation to be started |
| 2822 | * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface() |
| 2823 | * @peer_addr: Address of the peer P2P Device |
| 2824 | * @pin: PIN to use during provisioning or %NULL to indicate PBC mode |
| 2825 | * @persistent_group: Whether to create a persistent group |
| 2826 | * @join: Whether to join an existing group (as a client) instead of starting |
| 2827 | * Group Owner negotiation; @peer_addr is BSSID in that case |
| 2828 | * @auth: Whether to only authorize the connection instead of doing that and |
| 2829 | * initiating Group Owner negotiation |
| 2830 | * @go_intent: GO Intent or -1 to use default |
| 2831 | * @freq: Frequency for the group or 0 for auto-selection |
| 2832 | * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified |
| 2833 | * failure, -2 on failure due to channel not currently available, |
| 2834 | * -3 if forced channel is not supported |
| 2835 | */ |
| 2836 | int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr, |
| 2837 | const char *pin, enum p2p_wps_method wps_method, |
| 2838 | int persistent_group, int join, int auth, int go_intent, |
| 2839 | int freq) |
| 2840 | { |
| 2841 | int force_freq = 0, oper_freq = 0; |
| 2842 | u8 bssid[ETH_ALEN]; |
| 2843 | int ret = 0; |
| 2844 | enum wpa_driver_if_type iftype; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2845 | const u8 *if_addr; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2846 | |
| 2847 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 2848 | return -1; |
| 2849 | |
| 2850 | if (go_intent < 0) |
| 2851 | go_intent = wpa_s->conf->p2p_go_intent; |
| 2852 | |
| 2853 | if (!auth) |
| 2854 | wpa_s->p2p_long_listen = 0; |
| 2855 | |
| 2856 | wpa_s->p2p_wps_method = wps_method; |
| 2857 | |
| 2858 | if (pin) |
| 2859 | os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin)); |
| 2860 | else if (wps_method == WPS_PIN_DISPLAY) { |
| 2861 | ret = wps_generate_pin(); |
| 2862 | os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d", |
| 2863 | ret); |
| 2864 | wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s", |
| 2865 | wpa_s->p2p_pin); |
| 2866 | } else |
| 2867 | wpa_s->p2p_pin[0] = '\0'; |
| 2868 | |
| 2869 | if (join) { |
| 2870 | u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN]; |
| 2871 | if (auth) { |
| 2872 | wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to " |
| 2873 | "connect a running group from " MACSTR, |
| 2874 | MAC2STR(peer_addr)); |
| 2875 | os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN); |
| 2876 | return ret; |
| 2877 | } |
| 2878 | os_memcpy(dev_addr, peer_addr, ETH_ALEN); |
| 2879 | if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr, |
| 2880 | iface_addr) < 0) { |
| 2881 | os_memcpy(iface_addr, peer_addr, ETH_ALEN); |
| 2882 | p2p_get_dev_addr(wpa_s->global->p2p, peer_addr, |
| 2883 | dev_addr); |
| 2884 | } |
| 2885 | if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method) < |
| 2886 | 0) |
| 2887 | return -1; |
| 2888 | return ret; |
| 2889 | } |
| 2890 | |
| 2891 | if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 && |
| 2892 | wpa_s->assoc_freq) |
| 2893 | oper_freq = wpa_s->assoc_freq; |
| 2894 | else { |
| 2895 | oper_freq = wpa_drv_shared_freq(wpa_s); |
| 2896 | if (oper_freq < 0) |
| 2897 | oper_freq = 0; |
| 2898 | } |
| 2899 | |
| 2900 | if (freq > 0) { |
| 2901 | if (!p2p_supported_freq(wpa_s->global->p2p, freq)) { |
| 2902 | wpa_printf(MSG_DEBUG, "P2P: The forced channel " |
| 2903 | "(%u MHz) is not supported for P2P uses", |
| 2904 | freq); |
| 2905 | return -3; |
| 2906 | } |
| 2907 | |
| 2908 | if (oper_freq > 0 && freq != oper_freq && |
| 2909 | !(wpa_s->drv_flags & |
| 2910 | WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) { |
| 2911 | wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group " |
| 2912 | "on %u MHz while connected on another " |
| 2913 | "channel (%u MHz)", freq, oper_freq); |
| 2914 | return -2; |
| 2915 | } |
| 2916 | wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the " |
| 2917 | "requested channel (%u MHz)", freq); |
| 2918 | force_freq = freq; |
| 2919 | } else if (oper_freq > 0 && |
| 2920 | !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) { |
| 2921 | if (!(wpa_s->drv_flags & |
| 2922 | WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) { |
| 2923 | wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group " |
| 2924 | "while connected on non-P2P supported " |
| 2925 | "channel (%u MHz)", oper_freq); |
| 2926 | return -2; |
| 2927 | } |
| 2928 | wpa_printf(MSG_DEBUG, "P2P: Current operating channel " |
| 2929 | "(%u MHz) not available for P2P - try to use " |
| 2930 | "another channel", oper_freq); |
| 2931 | force_freq = 0; |
| 2932 | } else if (oper_freq > 0) { |
| 2933 | wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the " |
| 2934 | "channel we are already using (%u MHz) on another " |
| 2935 | "interface", oper_freq); |
| 2936 | force_freq = oper_freq; |
| 2937 | } |
| 2938 | |
| 2939 | wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s); |
| 2940 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2941 | if (wpa_s->create_p2p_iface) { |
| 2942 | /* Prepare to add a new interface for the group */ |
| 2943 | iftype = WPA_IF_P2P_GROUP; |
| 2944 | if (go_intent == 15) |
| 2945 | iftype = WPA_IF_P2P_GO; |
| 2946 | if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) { |
| 2947 | wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new " |
| 2948 | "interface for the group"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2949 | return -1; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2950 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2951 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2952 | if_addr = wpa_s->pending_interface_addr; |
| 2953 | } else |
| 2954 | if_addr = wpa_s->own_addr; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2955 | |
| 2956 | if (auth) { |
| 2957 | if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method, |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2958 | go_intent, if_addr, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2959 | force_freq, persistent_group) < 0) |
| 2960 | return -1; |
| 2961 | return ret; |
| 2962 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 2963 | |
| 2964 | if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method, |
| 2965 | go_intent, if_addr, force_freq, |
| 2966 | persistent_group) < 0) { |
| 2967 | if (wpa_s->create_p2p_iface) |
| 2968 | wpas_p2p_remove_pending_group_interface(wpa_s); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2969 | return -1; |
| 2970 | } |
| 2971 | return ret; |
| 2972 | } |
| 2973 | |
| 2974 | |
| 2975 | /** |
| 2976 | * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start |
| 2977 | * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface() |
| 2978 | * @freq: Frequency of the channel in MHz |
| 2979 | * @duration: Duration of the stay on the channel in milliseconds |
| 2980 | * |
| 2981 | * This callback is called when the driver indicates that it has started the |
| 2982 | * requested remain-on-channel duration. |
| 2983 | */ |
| 2984 | void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s, |
| 2985 | unsigned int freq, unsigned int duration) |
| 2986 | { |
| 2987 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 2988 | return; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2989 | if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) { |
| 2990 | p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq, |
| 2991 | wpa_s->pending_listen_duration); |
| 2992 | wpa_s->pending_listen_freq = 0; |
| 2993 | } |
| 2994 | } |
| 2995 | |
| 2996 | |
| 2997 | static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, |
| 2998 | unsigned int timeout) |
| 2999 | { |
| 3000 | /* Limit maximum Listen state time based on driver limitation. */ |
| 3001 | if (timeout > wpa_s->max_remain_on_chan) |
| 3002 | timeout = wpa_s->max_remain_on_chan; |
| 3003 | |
| 3004 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 3005 | return wpa_drv_p2p_listen(wpa_s, timeout); |
| 3006 | |
| 3007 | return p2p_listen(wpa_s->global->p2p, timeout); |
| 3008 | } |
| 3009 | |
| 3010 | |
| 3011 | /** |
| 3012 | * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout |
| 3013 | * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface() |
| 3014 | * @freq: Frequency of the channel in MHz |
| 3015 | * |
| 3016 | * This callback is called when the driver indicates that a remain-on-channel |
| 3017 | * operation has been completed, i.e., the duration on the requested channel |
| 3018 | * has timed out. |
| 3019 | */ |
| 3020 | void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s, |
| 3021 | unsigned int freq) |
| 3022 | { |
| 3023 | wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback " |
| 3024 | "(p2p_long_listen=%d ms pending_action_tx=%p)", |
| 3025 | wpa_s->p2p_long_listen, wpa_s->pending_action_tx); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3026 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3027 | return; |
| 3028 | if (p2p_listen_end(wpa_s->global->p2p, freq) > 0) |
| 3029 | return; /* P2P module started a new operation */ |
| 3030 | if (wpa_s->pending_action_tx) |
| 3031 | return; |
| 3032 | if (wpa_s->p2p_long_listen > 0) |
| 3033 | wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan; |
| 3034 | if (wpa_s->p2p_long_listen > 0) { |
| 3035 | wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state"); |
| 3036 | wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen); |
| 3037 | } |
| 3038 | } |
| 3039 | |
| 3040 | |
| 3041 | /** |
| 3042 | * wpas_p2p_group_remove - Remove a P2P group |
| 3043 | * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface() |
| 3044 | * @ifname: Network interface name of the group interface or "*" to remove all |
| 3045 | * groups |
| 3046 | * Returns: 0 on success, -1 on failure |
| 3047 | * |
| 3048 | * This function is used to remove a P2P group. This can be used to disconnect |
| 3049 | * from a group in which the local end is a P2P Client or to end a P2P Group in |
| 3050 | * case the local end is the Group Owner. If a virtual network interface was |
| 3051 | * created for this group, that interface will be removed. Otherwise, only the |
| 3052 | * configured P2P group network will be removed from the interface. |
| 3053 | */ |
| 3054 | int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname) |
| 3055 | { |
| 3056 | struct wpa_global *global = wpa_s->global; |
| 3057 | |
| 3058 | if (os_strcmp(ifname, "*") == 0) { |
| 3059 | struct wpa_supplicant *prev; |
| 3060 | wpa_s = global->ifaces; |
| 3061 | while (wpa_s) { |
| 3062 | prev = wpa_s; |
| 3063 | wpa_s = wpa_s->next; |
| 3064 | wpas_p2p_disconnect(prev); |
| 3065 | } |
| 3066 | return 0; |
| 3067 | } |
| 3068 | |
| 3069 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
| 3070 | if (os_strcmp(wpa_s->ifname, ifname) == 0) |
| 3071 | break; |
| 3072 | } |
| 3073 | |
| 3074 | return wpas_p2p_disconnect(wpa_s); |
| 3075 | } |
| 3076 | |
| 3077 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3078 | static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s, |
| 3079 | struct p2p_go_neg_results *params, |
| 3080 | int freq) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3081 | { |
| 3082 | u8 bssid[ETH_ALEN]; |
| 3083 | int res; |
| 3084 | |
| 3085 | os_memset(params, 0, sizeof(*params)); |
| 3086 | params->role_go = 1; |
| 3087 | if (freq) { |
| 3088 | wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced " |
| 3089 | "frequency %d MHz", freq); |
| 3090 | params->freq = freq; |
| 3091 | } else if (wpa_s->conf->p2p_oper_reg_class == 81 && |
| 3092 | wpa_s->conf->p2p_oper_channel >= 1 && |
| 3093 | wpa_s->conf->p2p_oper_channel <= 11) { |
| 3094 | params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel; |
| 3095 | wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured " |
| 3096 | "frequency %d MHz", params->freq); |
| 3097 | } else if (wpa_s->conf->p2p_oper_reg_class == 115 || |
Jouni Malinen | 87fd279 | 2011-05-16 18:35:42 +0300 | [diff] [blame] | 3098 | wpa_s->conf->p2p_oper_reg_class == 124) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3099 | params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel; |
| 3100 | wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured " |
| 3101 | "frequency %d MHz", params->freq); |
| 3102 | } else if (wpa_s->conf->p2p_oper_channel == 0 && |
| 3103 | wpa_s->best_overall_freq > 0 && |
| 3104 | p2p_supported_freq(wpa_s->global->p2p, |
| 3105 | wpa_s->best_overall_freq)) { |
| 3106 | params->freq = wpa_s->best_overall_freq; |
| 3107 | wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall " |
| 3108 | "channel %d MHz", params->freq); |
| 3109 | } else if (wpa_s->conf->p2p_oper_channel == 0 && |
| 3110 | wpa_s->best_24_freq > 0 && |
| 3111 | p2p_supported_freq(wpa_s->global->p2p, |
| 3112 | wpa_s->best_24_freq)) { |
| 3113 | params->freq = wpa_s->best_24_freq; |
| 3114 | wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz " |
| 3115 | "channel %d MHz", params->freq); |
| 3116 | } else if (wpa_s->conf->p2p_oper_channel == 0 && |
| 3117 | wpa_s->best_5_freq > 0 && |
| 3118 | p2p_supported_freq(wpa_s->global->p2p, |
| 3119 | wpa_s->best_5_freq)) { |
| 3120 | params->freq = wpa_s->best_5_freq; |
| 3121 | wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz " |
| 3122 | "channel %d MHz", params->freq); |
| 3123 | } else { |
| 3124 | params->freq = 2412; |
| 3125 | wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference " |
| 3126 | "known)", params->freq); |
| 3127 | } |
| 3128 | |
| 3129 | if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 && |
| 3130 | wpa_s->assoc_freq && !freq) { |
| 3131 | wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are " |
| 3132 | "already using"); |
| 3133 | params->freq = wpa_s->assoc_freq; |
| 3134 | } |
| 3135 | |
| 3136 | res = wpa_drv_shared_freq(wpa_s); |
| 3137 | if (res > 0 && !freq) { |
| 3138 | wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are " |
| 3139 | "already using on a shared interface"); |
| 3140 | params->freq = res; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3141 | } else if (res > 0 && freq != res && |
| 3142 | !(wpa_s->drv_flags & |
| 3143 | WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) { |
| 3144 | wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz " |
| 3145 | "while connected on another channel (%u MHz)", |
| 3146 | freq, res); |
| 3147 | return -1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3148 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3149 | |
| 3150 | return 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3151 | } |
| 3152 | |
| 3153 | |
| 3154 | static struct wpa_supplicant * |
| 3155 | wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated, |
| 3156 | int go) |
| 3157 | { |
| 3158 | struct wpa_supplicant *group_wpa_s; |
| 3159 | |
| 3160 | if (!wpas_p2p_create_iface(wpa_s)) |
| 3161 | return wpa_s; |
| 3162 | |
| 3163 | if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO : |
| 3164 | WPA_IF_P2P_CLIENT) < 0) |
| 3165 | return NULL; |
| 3166 | group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go); |
| 3167 | if (group_wpa_s == NULL) { |
| 3168 | wpas_p2p_remove_pending_group_interface(wpa_s); |
| 3169 | return NULL; |
| 3170 | } |
| 3171 | |
| 3172 | return group_wpa_s; |
| 3173 | } |
| 3174 | |
| 3175 | |
| 3176 | /** |
| 3177 | * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner |
| 3178 | * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface() |
| 3179 | * @persistent_group: Whether to create a persistent group |
| 3180 | * @freq: Frequency for the group or 0 to indicate no hardcoding |
| 3181 | * Returns: 0 on success, -1 on failure |
| 3182 | * |
| 3183 | * This function creates a new P2P group with the local end as the Group Owner, |
| 3184 | * i.e., without using Group Owner Negotiation. |
| 3185 | */ |
| 3186 | int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group, |
| 3187 | int freq) |
| 3188 | { |
| 3189 | struct p2p_go_neg_results params; |
| 3190 | unsigned int r; |
| 3191 | |
| 3192 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3193 | return -1; |
| 3194 | |
Dmitry Shmidt | dca3979 | 2011-09-06 11:17:33 -0700 | [diff] [blame] | 3195 | /* Make sure we are not running find during connection establishment */ |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3196 | wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND"); |
Dmitry Shmidt | dca3979 | 2011-09-06 11:17:33 -0700 | [diff] [blame] | 3197 | wpas_p2p_stop_find(wpa_s); |
Dmitry Shmidt | dca3979 | 2011-09-06 11:17:33 -0700 | [diff] [blame] | 3198 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3199 | if (freq == 2) { |
| 3200 | wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz " |
| 3201 | "band"); |
| 3202 | if (wpa_s->best_24_freq > 0 && |
| 3203 | p2p_supported_freq(wpa_s->global->p2p, |
| 3204 | wpa_s->best_24_freq)) { |
| 3205 | freq = wpa_s->best_24_freq; |
| 3206 | wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band " |
| 3207 | "channel: %d MHz", freq); |
| 3208 | } else { |
| 3209 | os_get_random((u8 *) &r, sizeof(r)); |
| 3210 | freq = 2412 + (r % 3) * 25; |
| 3211 | wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band " |
| 3212 | "channel: %d MHz", freq); |
| 3213 | } |
| 3214 | } |
| 3215 | |
| 3216 | if (freq == 5) { |
| 3217 | wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz " |
| 3218 | "band"); |
| 3219 | if (wpa_s->best_5_freq > 0 && |
| 3220 | p2p_supported_freq(wpa_s->global->p2p, |
| 3221 | wpa_s->best_5_freq)) { |
| 3222 | freq = wpa_s->best_5_freq; |
| 3223 | wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band " |
| 3224 | "channel: %d MHz", freq); |
| 3225 | } else { |
| 3226 | os_get_random((u8 *) &r, sizeof(r)); |
| 3227 | freq = 5180 + (r % 4) * 20; |
| 3228 | if (!p2p_supported_freq(wpa_s->global->p2p, freq)) { |
| 3229 | wpa_printf(MSG_DEBUG, "P2P: Could not select " |
| 3230 | "5 GHz channel for P2P group"); |
| 3231 | return -1; |
| 3232 | } |
| 3233 | wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band " |
| 3234 | "channel: %d MHz", freq); |
| 3235 | } |
| 3236 | } |
| 3237 | |
| 3238 | if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) { |
| 3239 | wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO " |
| 3240 | "(%u MHz) is not supported for P2P uses", |
| 3241 | freq); |
| 3242 | return -1; |
| 3243 | } |
| 3244 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3245 | if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq)) |
| 3246 | return -1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3247 | p2p_go_params(wpa_s->global->p2p, ¶ms); |
| 3248 | params.persistent_group = persistent_group; |
| 3249 | |
| 3250 | wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1); |
| 3251 | if (wpa_s == NULL) |
| 3252 | return -1; |
| 3253 | wpas_start_wps_go(wpa_s, ¶ms, 0); |
| 3254 | |
| 3255 | return 0; |
| 3256 | } |
| 3257 | |
| 3258 | |
| 3259 | static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s, |
| 3260 | struct wpa_ssid *params, int addr_allocated) |
| 3261 | { |
| 3262 | struct wpa_ssid *ssid; |
| 3263 | |
| 3264 | wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0); |
| 3265 | if (wpa_s == NULL) |
| 3266 | return -1; |
| 3267 | |
| 3268 | wpa_supplicant_ap_deinit(wpa_s); |
| 3269 | |
| 3270 | ssid = wpa_config_add_network(wpa_s->conf); |
| 3271 | if (ssid == NULL) |
| 3272 | return -1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3273 | wpa_config_set_network_defaults(ssid); |
| 3274 | ssid->temporary = 1; |
| 3275 | ssid->proto = WPA_PROTO_RSN; |
| 3276 | ssid->pairwise_cipher = WPA_CIPHER_CCMP; |
| 3277 | ssid->group_cipher = WPA_CIPHER_CCMP; |
| 3278 | ssid->key_mgmt = WPA_KEY_MGMT_PSK; |
| 3279 | ssid->ssid = os_malloc(params->ssid_len); |
| 3280 | if (ssid->ssid == NULL) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3281 | wpa_config_remove_network(wpa_s->conf, ssid->id); |
| 3282 | return -1; |
| 3283 | } |
| 3284 | os_memcpy(ssid->ssid, params->ssid, params->ssid_len); |
| 3285 | ssid->ssid_len = params->ssid_len; |
| 3286 | ssid->p2p_group = 1; |
| 3287 | ssid->export_keys = 1; |
| 3288 | if (params->psk_set) { |
| 3289 | os_memcpy(ssid->psk, params->psk, 32); |
| 3290 | ssid->psk_set = 1; |
| 3291 | } |
| 3292 | if (params->passphrase) |
| 3293 | ssid->passphrase = os_strdup(params->passphrase); |
| 3294 | |
| 3295 | wpa_supplicant_select_network(wpa_s, ssid); |
| 3296 | |
| 3297 | wpa_s->show_group_started = 1; |
| 3298 | |
| 3299 | return 0; |
| 3300 | } |
| 3301 | |
| 3302 | |
| 3303 | int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s, |
| 3304 | struct wpa_ssid *ssid, int addr_allocated, |
| 3305 | int freq) |
| 3306 | { |
| 3307 | struct p2p_go_neg_results params; |
| 3308 | int go = 0; |
| 3309 | |
| 3310 | if (ssid->disabled != 2 || ssid->ssid == NULL) |
| 3311 | return -1; |
| 3312 | |
| 3313 | if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) && |
| 3314 | go == (ssid->mode == WPAS_MODE_P2P_GO)) { |
| 3315 | wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is " |
| 3316 | "already running"); |
| 3317 | return 0; |
| 3318 | } |
| 3319 | |
| 3320 | /* Make sure we are not running find during connection establishment */ |
| 3321 | wpas_p2p_stop_find(wpa_s); |
| 3322 | |
| 3323 | if (ssid->mode == WPAS_MODE_INFRA) |
| 3324 | return wpas_start_p2p_client(wpa_s, ssid, addr_allocated); |
| 3325 | |
| 3326 | if (ssid->mode != WPAS_MODE_P2P_GO) |
| 3327 | return -1; |
| 3328 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3329 | if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq)) |
| 3330 | return -1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3331 | |
| 3332 | params.role_go = 1; |
| 3333 | if (ssid->passphrase == NULL || |
| 3334 | os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) { |
| 3335 | wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent " |
| 3336 | "group"); |
| 3337 | return -1; |
| 3338 | } |
| 3339 | os_strlcpy(params.passphrase, ssid->passphrase, |
| 3340 | sizeof(params.passphrase)); |
| 3341 | os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len); |
| 3342 | params.ssid_len = ssid->ssid_len; |
| 3343 | params.persistent_group = 1; |
| 3344 | |
| 3345 | wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1); |
| 3346 | if (wpa_s == NULL) |
| 3347 | return -1; |
| 3348 | |
| 3349 | wpas_start_wps_go(wpa_s, ¶ms, 0); |
| 3350 | |
| 3351 | return 0; |
| 3352 | } |
| 3353 | |
| 3354 | |
| 3355 | static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies, |
| 3356 | struct wpabuf *proberesp_ies) |
| 3357 | { |
| 3358 | struct wpa_supplicant *wpa_s = ctx; |
| 3359 | if (wpa_s->ap_iface) { |
| 3360 | struct hostapd_data *hapd = wpa_s->ap_iface->bss[0]; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3361 | if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) { |
| 3362 | wpabuf_free(beacon_ies); |
| 3363 | wpabuf_free(proberesp_ies); |
| 3364 | return; |
| 3365 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3366 | if (beacon_ies) { |
| 3367 | wpabuf_free(hapd->p2p_beacon_ie); |
| 3368 | hapd->p2p_beacon_ie = beacon_ies; |
| 3369 | } |
| 3370 | wpabuf_free(hapd->p2p_probe_resp_ie); |
| 3371 | hapd->p2p_probe_resp_ie = proberesp_ies; |
| 3372 | } else { |
| 3373 | wpabuf_free(beacon_ies); |
| 3374 | wpabuf_free(proberesp_ies); |
| 3375 | } |
| 3376 | wpa_supplicant_ap_update_beacon(wpa_s); |
| 3377 | } |
| 3378 | |
| 3379 | |
| 3380 | static void wpas_p2p_idle_update(void *ctx, int idle) |
| 3381 | { |
| 3382 | struct wpa_supplicant *wpa_s = ctx; |
| 3383 | if (!wpa_s->ap_iface) |
| 3384 | return; |
| 3385 | wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not "); |
| 3386 | if (idle) |
| 3387 | wpas_p2p_set_group_idle_timeout(wpa_s); |
| 3388 | else |
| 3389 | eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL); |
| 3390 | } |
| 3391 | |
| 3392 | |
| 3393 | struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s, |
| 3394 | int persistent_group, |
| 3395 | int group_formation) |
| 3396 | { |
| 3397 | struct p2p_group *group; |
| 3398 | struct p2p_group_config *cfg; |
| 3399 | |
| 3400 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 3401 | return NULL; |
| 3402 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3403 | return NULL; |
| 3404 | |
| 3405 | cfg = os_zalloc(sizeof(*cfg)); |
| 3406 | if (cfg == NULL) |
| 3407 | return NULL; |
| 3408 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3409 | if (persistent_group && wpa_s->conf->persistent_reconnect) |
| 3410 | cfg->persistent_group = 2; |
| 3411 | else if (persistent_group) |
| 3412 | cfg->persistent_group = 1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3413 | os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN); |
| 3414 | if (wpa_s->max_stations && |
| 3415 | wpa_s->max_stations < wpa_s->conf->max_num_sta) |
| 3416 | cfg->max_clients = wpa_s->max_stations; |
| 3417 | else |
| 3418 | cfg->max_clients = wpa_s->conf->max_num_sta; |
| 3419 | cfg->cb_ctx = wpa_s; |
| 3420 | cfg->ie_update = wpas_p2p_ie_update; |
| 3421 | cfg->idle_update = wpas_p2p_idle_update; |
| 3422 | |
| 3423 | group = p2p_group_init(wpa_s->global->p2p, cfg); |
| 3424 | if (group == NULL) |
| 3425 | os_free(cfg); |
| 3426 | if (!group_formation) |
| 3427 | p2p_group_notif_formation_done(group); |
| 3428 | wpa_s->p2p_group = group; |
| 3429 | return group; |
| 3430 | } |
| 3431 | |
| 3432 | |
| 3433 | void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr, |
| 3434 | int registrar) |
| 3435 | { |
| 3436 | if (!wpa_s->p2p_in_provisioning) { |
| 3437 | wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P " |
| 3438 | "provisioning not in progress"); |
| 3439 | return; |
| 3440 | } |
| 3441 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3442 | /* Clear any stored provisioning info */ |
| 3443 | p2p_clear_provisioning_info(wpa_s->global->p2p, peer_addr); |
| 3444 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3445 | eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent, |
| 3446 | NULL); |
| 3447 | if (wpa_s->global->p2p) |
| 3448 | p2p_wps_success_cb(wpa_s->global->p2p, peer_addr); |
| 3449 | else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 3450 | wpa_drv_wps_success_cb(wpa_s, peer_addr); |
| 3451 | wpas_group_formation_completed(wpa_s, 1); |
| 3452 | } |
| 3453 | |
| 3454 | |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3455 | void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s, |
| 3456 | struct wps_event_fail *fail) |
| 3457 | { |
| 3458 | if (!wpa_s->p2p_in_provisioning) { |
| 3459 | wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P " |
| 3460 | "provisioning not in progress"); |
| 3461 | return; |
| 3462 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3463 | |
| 3464 | if (wpa_s->go_params) { |
| 3465 | p2p_clear_provisioning_info( |
| 3466 | wpa_s->global->p2p, |
| 3467 | wpa_s->go_params->peer_interface_addr); |
| 3468 | } |
| 3469 | |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3470 | wpas_notify_p2p_wps_failed(wpa_s, fail); |
| 3471 | } |
| 3472 | |
| 3473 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3474 | int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr, |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3475 | const char *config_method, int join) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3476 | { |
| 3477 | u16 config_methods; |
| 3478 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3479 | if (os_strncmp(config_method, "display", 7) == 0) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3480 | config_methods = WPS_CONFIG_DISPLAY; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3481 | else if (os_strncmp(config_method, "keypad", 6) == 0) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3482 | config_methods = WPS_CONFIG_KEYPAD; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3483 | else if (os_strncmp(config_method, "pbc", 3) == 0 || |
| 3484 | os_strncmp(config_method, "pushbutton", 10) == 0) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3485 | config_methods = WPS_CONFIG_PUSHBUTTON; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3486 | else { |
| 3487 | wpa_printf(MSG_DEBUG, "P2P: Unknown config method"); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3488 | return -1; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3489 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3490 | |
| 3491 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) { |
| 3492 | return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr, |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3493 | config_methods, join); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3494 | } |
| 3495 | |
| 3496 | if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) |
| 3497 | return -1; |
| 3498 | |
| 3499 | return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3500 | config_methods, join, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3501 | } |
| 3502 | |
| 3503 | |
| 3504 | int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, |
| 3505 | char *end) |
| 3506 | { |
| 3507 | return p2p_scan_result_text(ies, ies_len, buf, end); |
| 3508 | } |
| 3509 | |
| 3510 | |
| 3511 | static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s) |
| 3512 | { |
| 3513 | if (!wpa_s->pending_action_tx) |
| 3514 | return; |
| 3515 | |
| 3516 | wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new " |
| 3517 | "operation request"); |
| 3518 | wpabuf_free(wpa_s->pending_action_tx); |
| 3519 | wpa_s->pending_action_tx = NULL; |
| 3520 | } |
| 3521 | |
| 3522 | |
| 3523 | int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout, |
| 3524 | enum p2p_discovery_type type, |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 3525 | unsigned int num_req_dev_types, const u8 *req_dev_types, |
| 3526 | const u8 *dev_id) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3527 | { |
| 3528 | wpas_p2p_clear_pending_action_tx(wpa_s); |
| 3529 | wpa_s->p2p_long_listen = 0; |
| 3530 | |
| 3531 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 3532 | return wpa_drv_p2p_find(wpa_s, timeout, type); |
| 3533 | |
| 3534 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3535 | return -1; |
| 3536 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 3537 | wpa_supplicant_cancel_sched_scan(wpa_s); |
| 3538 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3539 | return p2p_find(wpa_s->global->p2p, timeout, type, |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 3540 | num_req_dev_types, req_dev_types, dev_id); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3541 | } |
| 3542 | |
| 3543 | |
| 3544 | void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s) |
| 3545 | { |
| 3546 | wpas_p2p_clear_pending_action_tx(wpa_s); |
| 3547 | wpa_s->p2p_long_listen = 0; |
| 3548 | eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL); |
| 3549 | eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3550 | wpa_s->p2p_cb_on_scan_complete = 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3551 | |
| 3552 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) { |
| 3553 | wpa_drv_p2p_stop_find(wpa_s); |
| 3554 | return; |
| 3555 | } |
| 3556 | |
| 3557 | if (wpa_s->global->p2p) |
| 3558 | p2p_stop_find(wpa_s->global->p2p); |
| 3559 | |
| 3560 | wpas_p2p_remove_pending_group_interface(wpa_s); |
| 3561 | } |
| 3562 | |
| 3563 | |
| 3564 | static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx) |
| 3565 | { |
| 3566 | struct wpa_supplicant *wpa_s = eloop_ctx; |
| 3567 | wpa_s->p2p_long_listen = 0; |
| 3568 | } |
| 3569 | |
| 3570 | |
| 3571 | int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout) |
| 3572 | { |
| 3573 | int res; |
| 3574 | |
| 3575 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3576 | return -1; |
| 3577 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 3578 | wpa_supplicant_cancel_sched_scan(wpa_s); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3579 | wpas_p2p_clear_pending_action_tx(wpa_s); |
| 3580 | |
| 3581 | if (timeout == 0) { |
| 3582 | /* |
| 3583 | * This is a request for unlimited Listen state. However, at |
| 3584 | * least for now, this is mapped to a Listen state for one |
| 3585 | * hour. |
| 3586 | */ |
| 3587 | timeout = 3600; |
| 3588 | } |
| 3589 | eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL); |
| 3590 | wpa_s->p2p_long_listen = 0; |
| 3591 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3592 | /* |
| 3593 | * Stop previous find/listen operation to avoid trying to request a new |
| 3594 | * remain-on-channel operation while the driver is still running the |
| 3595 | * previous one. |
| 3596 | */ |
| 3597 | if (wpa_s->global->p2p) |
| 3598 | p2p_stop_find(wpa_s->global->p2p); |
| 3599 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3600 | res = wpas_p2p_listen_start(wpa_s, timeout * 1000); |
| 3601 | if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) { |
| 3602 | wpa_s->p2p_long_listen = timeout * 1000; |
| 3603 | eloop_register_timeout(timeout, 0, |
| 3604 | wpas_p2p_long_listen_timeout, |
| 3605 | wpa_s, NULL); |
| 3606 | } |
| 3607 | |
| 3608 | return res; |
| 3609 | } |
| 3610 | |
| 3611 | |
| 3612 | int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, |
| 3613 | u8 *buf, size_t len, int p2p_group) |
| 3614 | { |
| 3615 | struct wpabuf *p2p_ie; |
| 3616 | int ret; |
| 3617 | |
| 3618 | if (wpa_s->global->p2p_disabled) |
| 3619 | return -1; |
| 3620 | if (wpa_s->global->p2p == NULL) |
| 3621 | return -1; |
| 3622 | if (bss == NULL) |
| 3623 | return -1; |
| 3624 | |
| 3625 | p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); |
| 3626 | ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len, |
| 3627 | p2p_group, p2p_ie); |
| 3628 | wpabuf_free(p2p_ie); |
| 3629 | |
| 3630 | return ret; |
| 3631 | } |
| 3632 | |
| 3633 | |
| 3634 | int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr, |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3635 | const u8 *dst, const u8 *bssid, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3636 | const u8 *ie, size_t ie_len) |
| 3637 | { |
| 3638 | if (wpa_s->global->p2p_disabled) |
| 3639 | return 0; |
| 3640 | if (wpa_s->global->p2p == NULL) |
| 3641 | return 0; |
| 3642 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3643 | return p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid, |
| 3644 | ie, ie_len); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3645 | } |
| 3646 | |
| 3647 | |
| 3648 | void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da, |
| 3649 | const u8 *sa, const u8 *bssid, |
| 3650 | u8 category, const u8 *data, size_t len, int freq) |
| 3651 | { |
| 3652 | if (wpa_s->global->p2p_disabled) |
| 3653 | return; |
| 3654 | if (wpa_s->global->p2p == NULL) |
| 3655 | return; |
| 3656 | |
| 3657 | p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len, |
| 3658 | freq); |
| 3659 | } |
| 3660 | |
| 3661 | |
| 3662 | void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies) |
| 3663 | { |
| 3664 | if (wpa_s->global->p2p_disabled) |
| 3665 | return; |
| 3666 | if (wpa_s->global->p2p == NULL) |
| 3667 | return; |
| 3668 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 3669 | p2p_scan_ie(wpa_s->global->p2p, ies, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3670 | } |
| 3671 | |
| 3672 | |
| 3673 | void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s) |
| 3674 | { |
| 3675 | p2p_group_deinit(wpa_s->p2p_group); |
| 3676 | wpa_s->p2p_group = NULL; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3677 | |
| 3678 | wpa_s->ap_configured_cb = NULL; |
| 3679 | wpa_s->ap_configured_cb_ctx = NULL; |
| 3680 | wpa_s->ap_configured_cb_data = NULL; |
| 3681 | wpa_s->connect_without_scan = NULL; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3682 | } |
| 3683 | |
| 3684 | |
| 3685 | int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr) |
| 3686 | { |
| 3687 | wpa_s->p2p_long_listen = 0; |
| 3688 | |
| 3689 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 3690 | return wpa_drv_p2p_reject(wpa_s, addr); |
| 3691 | |
| 3692 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3693 | return -1; |
| 3694 | |
| 3695 | return p2p_reject(wpa_s->global->p2p, addr); |
| 3696 | } |
| 3697 | |
| 3698 | |
| 3699 | /* Invite to reinvoke a persistent group */ |
| 3700 | int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr, |
| 3701 | struct wpa_ssid *ssid, const u8 *go_dev_addr) |
| 3702 | { |
| 3703 | enum p2p_invite_role role; |
| 3704 | u8 *bssid = NULL; |
| 3705 | |
| 3706 | if (ssid->mode == WPAS_MODE_P2P_GO) { |
| 3707 | role = P2P_INVITE_ROLE_GO; |
| 3708 | if (peer_addr == NULL) { |
| 3709 | wpa_printf(MSG_DEBUG, "P2P: Missing peer " |
| 3710 | "address in invitation command"); |
| 3711 | return -1; |
| 3712 | } |
| 3713 | if (wpas_p2p_create_iface(wpa_s)) { |
| 3714 | if (wpas_p2p_add_group_interface(wpa_s, |
| 3715 | WPA_IF_P2P_GO) < 0) { |
| 3716 | wpa_printf(MSG_ERROR, "P2P: Failed to " |
| 3717 | "allocate a new interface for the " |
| 3718 | "group"); |
| 3719 | return -1; |
| 3720 | } |
| 3721 | bssid = wpa_s->pending_interface_addr; |
| 3722 | } else |
| 3723 | bssid = wpa_s->own_addr; |
| 3724 | } else { |
| 3725 | role = P2P_INVITE_ROLE_CLIENT; |
| 3726 | peer_addr = ssid->bssid; |
| 3727 | } |
| 3728 | wpa_s->pending_invite_ssid_id = ssid->id; |
| 3729 | |
| 3730 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 3731 | return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid, |
| 3732 | ssid->ssid, ssid->ssid_len, |
| 3733 | go_dev_addr, 1); |
| 3734 | |
| 3735 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3736 | return -1; |
| 3737 | |
| 3738 | return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid, |
| 3739 | ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1); |
| 3740 | } |
| 3741 | |
| 3742 | |
| 3743 | /* Invite to join an active group */ |
| 3744 | int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname, |
| 3745 | const u8 *peer_addr, const u8 *go_dev_addr) |
| 3746 | { |
| 3747 | struct wpa_global *global = wpa_s->global; |
| 3748 | enum p2p_invite_role role; |
| 3749 | u8 *bssid = NULL; |
| 3750 | struct wpa_ssid *ssid; |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 3751 | int persistent; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3752 | |
| 3753 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
| 3754 | if (os_strcmp(wpa_s->ifname, ifname) == 0) |
| 3755 | break; |
| 3756 | } |
| 3757 | if (wpa_s == NULL) { |
| 3758 | wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname); |
| 3759 | return -1; |
| 3760 | } |
| 3761 | |
| 3762 | ssid = wpa_s->current_ssid; |
| 3763 | if (ssid == NULL) { |
| 3764 | wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for " |
| 3765 | "invitation"); |
| 3766 | return -1; |
| 3767 | } |
| 3768 | |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 3769 | persistent = ssid->p2p_persistent_group && |
| 3770 | wpas_p2p_get_persistent(wpa_s->parent, peer_addr, |
| 3771 | ssid->ssid, ssid->ssid_len); |
| 3772 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3773 | if (ssid->mode == WPAS_MODE_P2P_GO) { |
| 3774 | role = P2P_INVITE_ROLE_ACTIVE_GO; |
| 3775 | bssid = wpa_s->own_addr; |
| 3776 | if (go_dev_addr == NULL) |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3777 | go_dev_addr = wpa_s->global->p2p_dev_addr; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3778 | } else { |
| 3779 | role = P2P_INVITE_ROLE_CLIENT; |
| 3780 | if (wpa_s->wpa_state < WPA_ASSOCIATED) { |
| 3781 | wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot " |
| 3782 | "invite to current group"); |
| 3783 | return -1; |
| 3784 | } |
| 3785 | bssid = wpa_s->bssid; |
| 3786 | if (go_dev_addr == NULL && |
| 3787 | !is_zero_ether_addr(wpa_s->go_dev_addr)) |
| 3788 | go_dev_addr = wpa_s->go_dev_addr; |
| 3789 | } |
| 3790 | wpa_s->parent->pending_invite_ssid_id = -1; |
| 3791 | |
| 3792 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 3793 | return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid, |
| 3794 | ssid->ssid, ssid->ssid_len, |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 3795 | go_dev_addr, persistent); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3796 | |
| 3797 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3798 | return -1; |
| 3799 | |
| 3800 | return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid, |
| 3801 | ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq, |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 3802 | go_dev_addr, persistent); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3803 | } |
| 3804 | |
| 3805 | |
| 3806 | void wpas_p2p_completed(struct wpa_supplicant *wpa_s) |
| 3807 | { |
| 3808 | struct wpa_ssid *ssid = wpa_s->current_ssid; |
| 3809 | const char *ssid_txt; |
| 3810 | u8 go_dev_addr[ETH_ALEN]; |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3811 | int network_id = -1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3812 | int persistent; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3813 | int freq; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3814 | |
| 3815 | if (!wpa_s->show_group_started || !ssid) |
| 3816 | return; |
| 3817 | |
| 3818 | wpa_s->show_group_started = 0; |
| 3819 | |
| 3820 | ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len); |
| 3821 | os_memset(go_dev_addr, 0, ETH_ALEN); |
| 3822 | if (ssid->bssid_set) |
| 3823 | os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN); |
| 3824 | persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid, |
| 3825 | ssid->ssid_len); |
| 3826 | os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN); |
| 3827 | |
| 3828 | if (wpa_s->global->p2p_group_formation == wpa_s) |
| 3829 | wpa_s->global->p2p_group_formation = NULL; |
| 3830 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3831 | freq = wpa_s->current_bss ? wpa_s->current_bss->freq : |
| 3832 | (int) wpa_s->assoc_freq; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3833 | if (ssid->passphrase == NULL && ssid->psk_set) { |
| 3834 | char psk[65]; |
| 3835 | wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32); |
| 3836 | wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED |
| 3837 | "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr=" |
| 3838 | MACSTR "%s", |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3839 | wpa_s->ifname, ssid_txt, freq, psk, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3840 | MAC2STR(go_dev_addr), |
| 3841 | persistent ? " [PERSISTENT]" : ""); |
| 3842 | } else { |
| 3843 | wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED |
| 3844 | "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" " |
| 3845 | "go_dev_addr=" MACSTR "%s", |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3846 | wpa_s->ifname, ssid_txt, freq, |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3847 | ssid->passphrase ? ssid->passphrase : "", |
| 3848 | MAC2STR(go_dev_addr), |
| 3849 | persistent ? " [PERSISTENT]" : ""); |
| 3850 | } |
| 3851 | |
| 3852 | if (persistent) |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 3853 | network_id = wpas_p2p_store_persistent_group(wpa_s->parent, |
| 3854 | ssid, go_dev_addr); |
| 3855 | if (network_id < 0) |
| 3856 | network_id = ssid->id; |
| 3857 | wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3858 | } |
| 3859 | |
| 3860 | |
| 3861 | int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1, |
| 3862 | u32 interval1, u32 duration2, u32 interval2) |
| 3863 | { |
| 3864 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 3865 | return -1; |
| 3866 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3867 | return -1; |
| 3868 | |
| 3869 | if (wpa_s->wpa_state < WPA_ASSOCIATED || |
| 3870 | wpa_s->current_ssid == NULL || |
| 3871 | wpa_s->current_ssid->mode != WPAS_MODE_INFRA) |
| 3872 | return -1; |
| 3873 | |
| 3874 | return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid, |
| 3875 | wpa_s->own_addr, wpa_s->assoc_freq, |
| 3876 | duration1, interval1, duration2, interval2); |
| 3877 | } |
| 3878 | |
| 3879 | |
| 3880 | int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period, |
| 3881 | unsigned int interval) |
| 3882 | { |
| 3883 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 3884 | return -1; |
| 3885 | |
| 3886 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3887 | return -1; |
| 3888 | |
| 3889 | return p2p_ext_listen(wpa_s->global->p2p, period, interval); |
| 3890 | } |
| 3891 | |
| 3892 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3893 | static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s) |
| 3894 | { |
| 3895 | return wpa_s->current_ssid != NULL && |
| 3896 | wpa_s->current_ssid->p2p_group && |
| 3897 | wpa_s->current_ssid->mode == WPAS_MODE_INFRA; |
| 3898 | } |
| 3899 | |
| 3900 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3901 | static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx) |
| 3902 | { |
| 3903 | struct wpa_supplicant *wpa_s = eloop_ctx; |
| 3904 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3905 | if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3906 | wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - " |
| 3907 | "disabled"); |
| 3908 | return; |
| 3909 | } |
| 3910 | |
| 3911 | wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate " |
| 3912 | "group"); |
| 3913 | wpa_s->removal_reason = P2P_GROUP_REMOVAL_IDLE_TIMEOUT; |
| 3914 | wpas_p2p_group_delete(wpa_s); |
| 3915 | } |
| 3916 | |
| 3917 | |
| 3918 | static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s) |
| 3919 | { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3920 | unsigned int timeout; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3921 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3922 | eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3923 | if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group) |
| 3924 | return; |
| 3925 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3926 | timeout = wpa_s->conf->p2p_group_idle; |
| 3927 | if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA && |
| 3928 | (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE)) |
| 3929 | timeout = P2P_MAX_CLIENT_IDLE; |
| 3930 | |
| 3931 | if (timeout == 0) |
| 3932 | return; |
| 3933 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3934 | wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds", |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 3935 | timeout); |
| 3936 | eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout, |
| 3937 | wpa_s, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 3938 | } |
| 3939 | |
| 3940 | |
| 3941 | void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid, |
| 3942 | u16 reason_code, const u8 *ie, size_t ie_len) |
| 3943 | { |
| 3944 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3945 | return; |
| 3946 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 3947 | return; |
| 3948 | |
| 3949 | p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len); |
| 3950 | } |
| 3951 | |
| 3952 | |
| 3953 | void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid, |
| 3954 | u16 reason_code, const u8 *ie, size_t ie_len) |
| 3955 | { |
| 3956 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 3957 | return; |
| 3958 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 3959 | return; |
| 3960 | |
| 3961 | p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len); |
| 3962 | } |
| 3963 | |
| 3964 | |
| 3965 | void wpas_p2p_update_config(struct wpa_supplicant *wpa_s) |
| 3966 | { |
| 3967 | struct p2p_data *p2p = wpa_s->global->p2p; |
| 3968 | |
| 3969 | if (p2p == NULL) |
| 3970 | return; |
| 3971 | |
| 3972 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)) |
| 3973 | return; |
| 3974 | |
| 3975 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME) |
| 3976 | p2p_set_dev_name(p2p, wpa_s->conf->device_name); |
| 3977 | |
| 3978 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) |
| 3979 | p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type); |
| 3980 | |
| 3981 | if (wpa_s->wps && |
| 3982 | (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS)) |
| 3983 | p2p_set_config_methods(p2p, wpa_s->wps->config_methods); |
| 3984 | |
| 3985 | if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)) |
| 3986 | p2p_set_uuid(p2p, wpa_s->wps->uuid); |
| 3987 | |
| 3988 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) { |
| 3989 | p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer); |
| 3990 | p2p_set_model_name(p2p, wpa_s->conf->model_name); |
| 3991 | p2p_set_model_number(p2p, wpa_s->conf->model_number); |
| 3992 | p2p_set_serial_number(p2p, wpa_s->conf->serial_number); |
| 3993 | } |
| 3994 | |
| 3995 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) |
| 3996 | p2p_set_sec_dev_types(p2p, |
| 3997 | (void *) wpa_s->conf->sec_device_type, |
| 3998 | wpa_s->conf->num_sec_device_types); |
| 3999 | |
| 4000 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) { |
| 4001 | int i; |
| 4002 | p2p_remove_wps_vendor_extensions(p2p); |
| 4003 | for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) { |
| 4004 | if (wpa_s->conf->wps_vendor_ext[i] == NULL) |
| 4005 | continue; |
| 4006 | p2p_add_wps_vendor_extension( |
| 4007 | p2p, wpa_s->conf->wps_vendor_ext[i]); |
| 4008 | } |
| 4009 | } |
| 4010 | |
| 4011 | if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) && |
| 4012 | wpa_s->conf->country[0] && wpa_s->conf->country[1]) { |
| 4013 | char country[3]; |
| 4014 | country[0] = wpa_s->conf->country[0]; |
| 4015 | country[1] = wpa_s->conf->country[1]; |
| 4016 | country[2] = 0x04; |
| 4017 | p2p_set_country(p2p, country); |
| 4018 | } |
| 4019 | |
| 4020 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) { |
| 4021 | p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix, |
| 4022 | wpa_s->conf->p2p_ssid_postfix ? |
| 4023 | os_strlen(wpa_s->conf->p2p_ssid_postfix) : |
| 4024 | 0); |
| 4025 | } |
| 4026 | |
| 4027 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS) |
| 4028 | p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss); |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 4029 | |
| 4030 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) { |
| 4031 | u8 reg_class, channel; |
| 4032 | int ret; |
| 4033 | unsigned int r; |
| 4034 | if (wpa_s->conf->p2p_listen_reg_class && |
| 4035 | wpa_s->conf->p2p_listen_channel) { |
| 4036 | reg_class = wpa_s->conf->p2p_listen_reg_class; |
| 4037 | channel = wpa_s->conf->p2p_listen_channel; |
| 4038 | } else { |
| 4039 | reg_class = 81; |
| 4040 | /* |
| 4041 | * Pick one of the social channels randomly as the |
| 4042 | * listen channel. |
| 4043 | */ |
| 4044 | os_get_random((u8 *) &r, sizeof(r)); |
| 4045 | channel = 1 + (r % 3) * 5; |
| 4046 | } |
| 4047 | ret = p2p_set_listen_channel(p2p, reg_class, channel); |
| 4048 | if (ret) |
| 4049 | wpa_printf(MSG_ERROR, "P2P: Own listen channel update " |
| 4050 | "failed: %d", ret); |
| 4051 | } |
| 4052 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) { |
| 4053 | u8 op_reg_class, op_channel, cfg_op_channel; |
| 4054 | int ret = 0; |
| 4055 | unsigned int r; |
| 4056 | if (wpa_s->conf->p2p_oper_reg_class && |
| 4057 | wpa_s->conf->p2p_oper_channel) { |
| 4058 | op_reg_class = wpa_s->conf->p2p_oper_reg_class; |
| 4059 | op_channel = wpa_s->conf->p2p_oper_channel; |
| 4060 | cfg_op_channel = 1; |
| 4061 | } else { |
| 4062 | op_reg_class = 81; |
| 4063 | /* |
| 4064 | * Use random operation channel from (1, 6, 11) |
| 4065 | *if no other preference is indicated. |
| 4066 | */ |
| 4067 | os_get_random((u8 *) &r, sizeof(r)); |
| 4068 | op_channel = 1 + (r % 3) * 5; |
| 4069 | cfg_op_channel = 0; |
| 4070 | } |
| 4071 | ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel, |
| 4072 | cfg_op_channel); |
| 4073 | if (ret) |
| 4074 | wpa_printf(MSG_ERROR, "P2P: Own oper channel update " |
| 4075 | "failed: %d", ret); |
| 4076 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4077 | } |
| 4078 | |
| 4079 | |
| 4080 | int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start, |
| 4081 | int duration) |
| 4082 | { |
| 4083 | if (!wpa_s->ap_iface) |
| 4084 | return -1; |
| 4085 | return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start, |
| 4086 | duration); |
| 4087 | } |
| 4088 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4089 | |
| 4090 | int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled) |
| 4091 | { |
| 4092 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 4093 | return -1; |
| 4094 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) |
| 4095 | return -1; |
| 4096 | |
| 4097 | wpa_s->global->cross_connection = enabled; |
| 4098 | p2p_set_cross_connect(wpa_s->global->p2p, enabled); |
| 4099 | |
| 4100 | if (!enabled) { |
| 4101 | struct wpa_supplicant *iface; |
| 4102 | |
| 4103 | for (iface = wpa_s->global->ifaces; iface; iface = iface->next) |
| 4104 | { |
| 4105 | if (iface->cross_connect_enabled == 0) |
| 4106 | continue; |
| 4107 | |
| 4108 | iface->cross_connect_enabled = 0; |
| 4109 | iface->cross_connect_in_use = 0; |
| 4110 | wpa_msg(iface->parent, MSG_INFO, |
| 4111 | P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s", |
| 4112 | iface->ifname, iface->cross_connect_uplink); |
| 4113 | } |
| 4114 | } |
| 4115 | |
| 4116 | return 0; |
| 4117 | } |
| 4118 | |
| 4119 | |
| 4120 | static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink) |
| 4121 | { |
| 4122 | struct wpa_supplicant *iface; |
| 4123 | |
| 4124 | if (!uplink->global->cross_connection) |
| 4125 | return; |
| 4126 | |
| 4127 | for (iface = uplink->global->ifaces; iface; iface = iface->next) { |
| 4128 | if (!iface->cross_connect_enabled) |
| 4129 | continue; |
| 4130 | if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) != |
| 4131 | 0) |
| 4132 | continue; |
| 4133 | if (iface->ap_iface == NULL) |
| 4134 | continue; |
| 4135 | if (iface->cross_connect_in_use) |
| 4136 | continue; |
| 4137 | |
| 4138 | iface->cross_connect_in_use = 1; |
| 4139 | wpa_msg(iface->parent, MSG_INFO, |
| 4140 | P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s", |
| 4141 | iface->ifname, iface->cross_connect_uplink); |
| 4142 | } |
| 4143 | } |
| 4144 | |
| 4145 | |
| 4146 | static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink) |
| 4147 | { |
| 4148 | struct wpa_supplicant *iface; |
| 4149 | |
| 4150 | for (iface = uplink->global->ifaces; iface; iface = iface->next) { |
| 4151 | if (!iface->cross_connect_enabled) |
| 4152 | continue; |
| 4153 | if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) != |
| 4154 | 0) |
| 4155 | continue; |
| 4156 | if (!iface->cross_connect_in_use) |
| 4157 | continue; |
| 4158 | |
| 4159 | wpa_msg(iface->parent, MSG_INFO, |
| 4160 | P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s", |
| 4161 | iface->ifname, iface->cross_connect_uplink); |
| 4162 | iface->cross_connect_in_use = 0; |
| 4163 | } |
| 4164 | } |
| 4165 | |
| 4166 | |
| 4167 | void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s) |
| 4168 | { |
| 4169 | if (wpa_s->ap_iface || wpa_s->current_ssid == NULL || |
| 4170 | wpa_s->current_ssid->mode != WPAS_MODE_INFRA || |
| 4171 | wpa_s->cross_connect_disallowed) |
| 4172 | wpas_p2p_disable_cross_connect(wpa_s); |
| 4173 | else |
| 4174 | wpas_p2p_enable_cross_connect(wpa_s); |
| 4175 | if (!wpa_s->ap_iface) |
| 4176 | eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL); |
| 4177 | } |
| 4178 | |
| 4179 | |
| 4180 | void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s) |
| 4181 | { |
| 4182 | wpas_p2p_disable_cross_connect(wpa_s); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 4183 | if (!wpa_s->ap_iface && |
| 4184 | !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout, |
| 4185 | wpa_s, NULL)) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 4186 | wpas_p2p_set_group_idle_timeout(wpa_s); |
| 4187 | } |
| 4188 | |
| 4189 | |
| 4190 | static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s) |
| 4191 | { |
| 4192 | struct wpa_supplicant *iface; |
| 4193 | |
| 4194 | if (!wpa_s->global->cross_connection) |
| 4195 | return; |
| 4196 | |
| 4197 | for (iface = wpa_s->global->ifaces; iface; iface = iface->next) { |
| 4198 | if (iface == wpa_s) |
| 4199 | continue; |
| 4200 | if (iface->drv_flags & |
| 4201 | WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE) |
| 4202 | continue; |
| 4203 | if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) |
| 4204 | continue; |
| 4205 | |
| 4206 | wpa_s->cross_connect_enabled = 1; |
| 4207 | os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname, |
| 4208 | sizeof(wpa_s->cross_connect_uplink)); |
| 4209 | wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from " |
| 4210 | "%s to %s whenever uplink is available", |
| 4211 | wpa_s->ifname, wpa_s->cross_connect_uplink); |
| 4212 | |
| 4213 | if (iface->ap_iface || iface->current_ssid == NULL || |
| 4214 | iface->current_ssid->mode != WPAS_MODE_INFRA || |
| 4215 | iface->cross_connect_disallowed || |
| 4216 | iface->wpa_state != WPA_COMPLETED) |
| 4217 | break; |
| 4218 | |
| 4219 | wpa_s->cross_connect_in_use = 1; |
| 4220 | wpa_msg(wpa_s->parent, MSG_INFO, |
| 4221 | P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s", |
| 4222 | wpa_s->ifname, wpa_s->cross_connect_uplink); |
| 4223 | break; |
| 4224 | } |
| 4225 | } |
| 4226 | |
| 4227 | |
| 4228 | int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s) |
| 4229 | { |
| 4230 | if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT && |
| 4231 | !wpa_s->p2p_in_provisioning) |
| 4232 | return 0; /* not P2P client operation */ |
| 4233 | |
| 4234 | wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC " |
| 4235 | "session overlap"); |
| 4236 | if (wpa_s != wpa_s->parent) |
| 4237 | wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP); |
| 4238 | |
| 4239 | if (wpa_s->global->p2p) |
| 4240 | p2p_group_formation_failed(wpa_s->global->p2p); |
| 4241 | |
| 4242 | eloop_cancel_timeout(wpas_p2p_group_formation_timeout, |
| 4243 | wpa_s->parent, NULL); |
| 4244 | |
| 4245 | wpas_group_formation_completed(wpa_s, 0); |
| 4246 | return 1; |
| 4247 | } |
| 4248 | |
| 4249 | |
| 4250 | void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s) |
| 4251 | { |
| 4252 | struct p2p_channels chan; |
| 4253 | |
| 4254 | if (wpa_s->global == NULL || wpa_s->global->p2p == NULL) |
| 4255 | return; |
| 4256 | |
| 4257 | os_memset(&chan, 0, sizeof(chan)); |
| 4258 | if (wpas_p2p_setup_channels(wpa_s, &chan)) { |
| 4259 | wpa_printf(MSG_ERROR, "P2P: Failed to update supported " |
| 4260 | "channel list"); |
| 4261 | return; |
| 4262 | } |
| 4263 | |
| 4264 | p2p_update_channel_list(wpa_s->global->p2p, &chan); |
| 4265 | } |
| 4266 | |
| 4267 | |
| 4268 | int wpas_p2p_cancel(struct wpa_supplicant *wpa_s) |
| 4269 | { |
| 4270 | struct wpa_global *global = wpa_s->global; |
| 4271 | int found = 0; |
| 4272 | const u8 *peer; |
| 4273 | |
| 4274 | if (global->p2p == NULL) |
| 4275 | return -1; |
| 4276 | |
| 4277 | wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation"); |
| 4278 | |
| 4279 | if (wpa_s->pending_interface_name[0] && |
| 4280 | !is_zero_ether_addr(wpa_s->pending_interface_addr)) |
| 4281 | found = 1; |
| 4282 | |
| 4283 | peer = p2p_get_go_neg_peer(global->p2p); |
| 4284 | if (peer) { |
| 4285 | wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer " |
| 4286 | MACSTR, MAC2STR(peer)); |
| 4287 | p2p_unauthorize(global->p2p, peer); |
| 4288 | } |
| 4289 | |
| 4290 | wpas_p2p_stop_find(wpa_s); |
| 4291 | |
| 4292 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
| 4293 | if (wpa_s == global->p2p_group_formation && |
| 4294 | (wpa_s->p2p_in_provisioning || |
| 4295 | wpa_s->parent->pending_interface_type == |
| 4296 | WPA_IF_P2P_CLIENT)) { |
| 4297 | wpa_printf(MSG_DEBUG, "P2P: Interface %s in group " |
| 4298 | "formation found - cancelling", |
| 4299 | wpa_s->ifname); |
| 4300 | found = 1; |
| 4301 | eloop_cancel_timeout(wpas_p2p_group_formation_timeout, |
| 4302 | wpa_s->parent, NULL); |
| 4303 | wpas_p2p_group_delete(wpa_s); |
| 4304 | break; |
| 4305 | } |
| 4306 | } |
| 4307 | |
| 4308 | if (!found) { |
| 4309 | wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found"); |
| 4310 | return -1; |
| 4311 | } |
| 4312 | |
| 4313 | return 0; |
| 4314 | } |
| 4315 | |
| 4316 | |
| 4317 | void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s) |
| 4318 | { |
| 4319 | if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group) |
| 4320 | return; |
| 4321 | |
| 4322 | wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not " |
| 4323 | "being available anymore"); |
| 4324 | wpa_s->removal_reason = P2P_GROUP_REMOVAL_UNAVAILABLE; |
| 4325 | wpas_p2p_group_delete(wpa_s); |
| 4326 | } |
| 4327 | |
| 4328 | |
| 4329 | void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s, |
| 4330 | int freq_24, int freq_5, int freq_overall) |
| 4331 | { |
| 4332 | struct p2p_data *p2p = wpa_s->global->p2p; |
| 4333 | if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)) |
| 4334 | return; |
| 4335 | p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall); |
| 4336 | } |
| 4337 | |
| 4338 | |
| 4339 | int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr) |
| 4340 | { |
| 4341 | u8 peer[ETH_ALEN]; |
| 4342 | struct p2p_data *p2p = wpa_s->global->p2p; |
| 4343 | |
| 4344 | if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)) |
| 4345 | return -1; |
| 4346 | |
| 4347 | if (hwaddr_aton(addr, peer)) |
| 4348 | return -1; |
| 4349 | |
| 4350 | return p2p_unauthorize(p2p, peer); |
| 4351 | } |
| 4352 | |
| 4353 | |
| 4354 | /** |
| 4355 | * wpas_p2p_disconnect - Disconnect from a P2P Group |
| 4356 | * @wpa_s: Pointer to wpa_supplicant data |
| 4357 | * Returns: 0 on success, -1 on failure |
| 4358 | * |
| 4359 | * This can be used to disconnect from a group in which the local end is a P2P |
| 4360 | * Client or to end a P2P Group in case the local end is the Group Owner. If a |
| 4361 | * virtual network interface was created for this group, that interface will be |
| 4362 | * removed. Otherwise, only the configured P2P group network will be removed |
| 4363 | * from the interface. |
| 4364 | */ |
| 4365 | int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s) |
| 4366 | { |
| 4367 | |
| 4368 | if (wpa_s == NULL) |
| 4369 | return -1; |
| 4370 | |
| 4371 | wpa_s->removal_reason = P2P_GROUP_REMOVAL_REQUESTED; |
| 4372 | wpas_p2p_group_delete(wpa_s); |
| 4373 | |
| 4374 | return 0; |
| 4375 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 4376 | |
| 4377 | |
| 4378 | int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s) |
| 4379 | { |
| 4380 | if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) |
| 4381 | return 0; |
| 4382 | |
| 4383 | return p2p_in_progress(wpa_s->global->p2p); |
| 4384 | } |
| 4385 | |
| 4386 | |
| 4387 | void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s, |
| 4388 | struct wpa_ssid *ssid) |
| 4389 | |
| 4390 | { |
| 4391 | if (wpa_s->p2p_in_provisioning && ssid->p2p_group && |
| 4392 | eloop_cancel_timeout(wpas_p2p_group_formation_timeout, |
| 4393 | wpa_s->parent, NULL) > 0) { |
| 4394 | wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to " |
| 4395 | "P2P group network getting removed"); |
| 4396 | wpas_p2p_group_formation_timeout(wpa_s->parent, NULL); |
| 4397 | } |
| 4398 | } |
| 4399 | |
| 4400 | |
| 4401 | struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s, |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 4402 | const u8 *addr, const u8 *ssid, |
| 4403 | size_t ssid_len) |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 4404 | { |
| 4405 | struct wpa_ssid *s; |
| 4406 | size_t i; |
| 4407 | |
| 4408 | for (s = wpa_s->conf->ssid; s; s = s->next) { |
| 4409 | if (s->disabled != 2) |
| 4410 | continue; |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 4411 | if (ssid && |
| 4412 | (ssid_len != s->ssid_len || |
| 4413 | os_memcmp(ssid, s->ssid, ssid_len) != 0)) |
| 4414 | continue; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame] | 4415 | if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0) |
| 4416 | return s; /* peer is GO in the persistent group */ |
| 4417 | if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL) |
| 4418 | continue; |
| 4419 | for (i = 0; i < s->num_p2p_clients; i++) { |
| 4420 | if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, |
| 4421 | addr, ETH_ALEN) == 0) |
| 4422 | return s; /* peer is P2P client in persistent |
| 4423 | * group */ |
| 4424 | } |
| 4425 | } |
| 4426 | |
| 4427 | return NULL; |
| 4428 | } |
| 4429 | |
| 4430 | |
| 4431 | void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s, |
| 4432 | const u8 *addr) |
| 4433 | { |
| 4434 | if (addr == NULL) |
| 4435 | return; |
| 4436 | wpas_p2p_add_persistent_group_client(wpa_s, addr); |
| 4437 | } |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 4438 | |
| 4439 | #ifdef ANDROID_P2P |
| 4440 | int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq) |
| 4441 | { |
| 4442 | struct wpa_supplicant *iface = NULL; |
| 4443 | struct p2p_data *p2p = wpa_s->global->p2p; |
| 4444 | |
| 4445 | for (iface = wpa_s->global->ifaces; iface; iface = iface->next) { |
| 4446 | if((iface->p2p_group_interface) && (iface->current_ssid) && |
| 4447 | (iface->current_ssid->frequency != freq)) { |
| 4448 | |
| 4449 | if (iface->p2p_group_interface == P2P_GROUP_INTERFACE_GO) { |
| 4450 | /* Try to see whether we can move the GO. If it |
| 4451 | * is not possible, remove the GO interface |
| 4452 | */ |
| 4453 | if(wpa_drv_switch_channel(iface, freq) == 0) { |
| 4454 | wpa_printf(MSG_ERROR, "P2P: GO Moved to freq(%d)", freq); |
| 4455 | iface->current_ssid->frequency = freq; |
| 4456 | continue; |
| 4457 | } |
| 4458 | } |
| 4459 | |
| 4460 | /* If GO cannot be moved or if the conflicting interface is a |
| 4461 | * P2P Client, remove the interface depending up on the connection |
| 4462 | * priority */ |
Dmitry Shmidt | 687922c | 2012-03-26 14:02:32 -0700 | [diff] [blame^] | 4463 | if(!wpas_is_p2p_prioritized(wpa_s)) { |
| 4464 | /* STA connection has priority over existing |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 4465 | * P2P connection. So remove the interface */ |
Dmitry Shmidt | 687922c | 2012-03-26 14:02:32 -0700 | [diff] [blame^] | 4466 | wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to Single channel" |
| 4467 | "concurrent mode frequency conflict"); |
| 4468 | iface->removal_reason = P2P_GROUP_REMOVAL_FREQ_CONFLICT; |
| 4469 | wpas_p2p_group_delete(iface); |
Dmitry Shmidt | c5ec7f5 | 2012-03-06 16:33:24 -0800 | [diff] [blame] | 4470 | } else { |
| 4471 | /* Existing connection has the priority. Disable the newly |
| 4472 | * selected network and let the application know about it. |
| 4473 | */ |
| 4474 | return -1; |
| 4475 | } |
| 4476 | } |
| 4477 | } |
| 4478 | return 0; |
| 4479 | } |
| 4480 | #endif |