p2p_invitation.c revision 15907098d1f67c24bb000e593e279af173cf57d7
18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Wi-Fi Direct - P2P Invitation procedure 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2010, Atheros Communications 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 5c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * This software may be distributed under the terms of the BSD license. 6c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * See README for more details. 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "includes.h" 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common.h" 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_defs.h" 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "p2p_i.h" 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "p2p.h" 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_build_invitation_req(struct p2p_data *p2p, 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *peer, 19cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt const u8 *go_dev_addr, 20cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt int dev_pw_id) 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf; 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *dev_addr; 2561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t extra = 0; 2661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 2761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_WIFI_DISPLAY 2861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct wpabuf *wfd_ie = p2p->wfd_ie_invitation; 2961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie && p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) { 3061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t i; 3161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt for (i = 0; i < p2p->num_groups; i++) { 3261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct p2p_group *g = p2p->groups[i]; 3361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct wpabuf *ie; 344530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt if (os_memcmp(p2p_group_get_interface_addr(g), 354530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt p2p->inv_bssid, ETH_ALEN) != 0) 364530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt continue; 3761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ie = p2p_group_get_wfd_ie(g); 3861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (ie) { 3961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wfd_ie = ie; 4061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt break; 4161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 4261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 4361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 4461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie) 4561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt extra = wpabuf_len(wfd_ie); 4661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_WIFI_DISPLAY */ 4761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 4861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt buf = wpabuf_alloc(1000 + extra); 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dialog_token++; 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->dialog_token == 0) 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dialog_token = 1; 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_public_action_hdr(buf, P2P_INVITATION_REQ, 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dialog_token); 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = p2p_buf_add_ie_hdr(buf); 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO || !p2p->inv_persistent) 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_config_timeout(buf, 0, 0); 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 6261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt p2p_buf_add_config_timeout(buf, p2p->go_timeout, 6361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt p2p->client_timeout); 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_invitation_flags(buf, p2p->inv_persistent ? 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt P2P_INVITATION_FLAGS_TYPE : 0); 667a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt if (p2p->inv_role != P2P_INVITE_ROLE_CLIENT || 677a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt !(peer->flags & P2P_DEV_NO_PREF_CHAN)) 687a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p_buf_add_operating_channel(buf, p2p->cfg->country, 697a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p->op_reg_class, 707a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p->op_channel); 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->inv_bssid_set) 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_group_bssid(buf, p2p->inv_bssid); 73069fa2c39ec7120656a2ea8cca83c5ee41ddab60Irfan Sheriff p2p_buf_add_channel_list(buf, p2p->cfg->country, &p2p->channels); 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (go_dev_addr) 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_addr = go_dev_addr; 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else if (p2p->inv_role == P2P_INVITE_ROLE_CLIENT) 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_addr = peer->info.p2p_device_addr; 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_addr = p2p->cfg->dev_addr; 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_group_id(buf, dev_addr, p2p->inv_ssid, p2p->inv_ssid_len); 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_device_info(buf, p2p, peer); 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(buf, len); 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_WIFI_DISPLAY 8561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie) 8661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpabuf_put_buf(buf, wfd_ie); 8761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_WIFI_DISPLAY */ 8861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 89cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (dev_pw_id >= 0) { 90cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt /* WSC IE in Invitation Request for NFC static handover */ 91cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt p2p_build_wps_ie(p2p, buf, dev_pw_id, 0); 92cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt } 93cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return buf; 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_build_invitation_resp(struct p2p_data *p2p, 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *peer, 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dialog_token, u8 status, 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *group_bssid, 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 reg_class, u8 channel, 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_channels *channels) 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf; 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 10761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t extra = 0; 10861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 10961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_WIFI_DISPLAY 11061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct wpabuf *wfd_ie = p2p->wfd_ie_invitation; 11161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie && group_bssid) { 11261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t i; 11361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt for (i = 0; i < p2p->num_groups; i++) { 11461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct p2p_group *g = p2p->groups[i]; 11561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct wpabuf *ie; 1164530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt if (os_memcmp(p2p_group_get_interface_addr(g), 1174530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt group_bssid, ETH_ALEN) != 0) 11861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt continue; 11961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ie = p2p_group_get_wfd_ie(g); 12061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (ie) { 12161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wfd_ie = ie; 12261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt break; 12361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 12461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 12561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 12661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie) 12761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt extra = wpabuf_len(wfd_ie); 12861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_WIFI_DISPLAY */ 12961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 13061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt buf = wpabuf_alloc(1000 + extra); 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_public_action_hdr(buf, P2P_INVITATION_RESP, 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dialog_token); 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = p2p_buf_add_ie_hdr(buf); 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_status(buf, status); 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_config_timeout(buf, 0, 0); /* FIX */ 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (reg_class && channel) 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_operating_channel(buf, p2p->cfg->country, 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt reg_class, channel); 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group_bssid) 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_group_bssid(buf, group_bssid); 145069fa2c39ec7120656a2ea8cca83c5ee41ddab60Irfan Sheriff if (channels) 146069fa2c39ec7120656a2ea8cca83c5ee41ddab60Irfan Sheriff p2p_buf_add_channel_list(buf, p2p->cfg->country, channels); 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(buf, len); 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_WIFI_DISPLAY 15061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie) 15161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpabuf_put_buf(buf, wfd_ie); 15261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_WIFI_DISPLAY */ 15361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return buf; 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa, 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t len, int rx_freq) 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_message msg; 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *resp = NULL; 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int freq; 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int go = 0; 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 group_bssid[ETH_ALEN], *bssid; 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int op_freq = 0; 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 reg_class = 0, channel = 0; 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_channels intersection, *channels = NULL; 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int persistent; 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(group_bssid, 0, sizeof(group_bssid)); 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 175b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Received Invitation Request from " MACSTR " (freq=%d)", 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sa), rx_freq); 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_parse(data, len, &msg)) 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) { 183b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Request from unknown peer " MACSTR, 184b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MAC2STR(sa)); 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 186f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (p2p_add_device(p2p, sa, rx_freq, NULL, 0, data + 1, len - 1, 187a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 0)) { 188b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Request add device failed " 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL) { 196b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Reject Invitation Request from unknown peer " 197b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!msg.group_id || !msg.channel_list) { 204b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory attribute missing in Invitation Request from " 205b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INVALID_PARAMS; 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (msg.invitation_flags) 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt persistent = *msg.invitation_flags & P2P_INVITATION_FLAGS_TYPE; 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else { 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Invitation Flags is a mandatory attribute starting from P2P 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * spec 1.06. As a backwards compatibility mechanism, assume 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the request was for a persistent group if the attribute is 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * missing. 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 218b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory Invitation Flags attribute missing from Invitation Request"); 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt persistent = 1; 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_peer_channels_check(p2p, &p2p->cfg->channels, dev, 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.channel_list, msg.channel_list_len) < 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0) { 225b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No common channels found"); 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 230f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt p2p_channels_intersect(&p2p->cfg->channels, &dev->channels, 231f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt &intersection); 232f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->cfg->invitation_process) { 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = p2p->cfg->invitation_process( 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->cb_ctx, sa, msg.group_bssid, msg.group_id, 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.group_id + ETH_ALEN, msg.group_id_len - ETH_ALEN, 237cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt &go, group_bssid, &op_freq, persistent, &intersection, 238cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt msg.dev_password_id_present ? msg.dev_password_id : -1); 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (op_freq) { 242b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation processing forced frequency %d MHz", 243b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt op_freq); 2444b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt if (p2p_freq_to_channel(op_freq, ®_class, &channel) < 0) { 245b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Unknown forced freq %d MHz from invitation_process()", 246b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt op_freq); 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!p2p_channels_includes(&intersection, reg_class, channel)) 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt { 253b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "forced freq %d MHz not in the supported channels interaction", 254b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt op_freq); 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status == P2P_SC_SUCCESS) 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt channels = &intersection; 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 262b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No forced channel from invitation processing - figure out best one to use"); 26391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 26491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt /* Default to own configuration as a starting point */ 26591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class = p2p->cfg->op_reg_class; 26691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel = p2p->cfg->op_channel; 267b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Own default op_class %d channel %d", 26891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 26991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 27091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt /* Use peer preference if specified and compatible */ 27191c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt if (msg.operating_channel) { 27291c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt int req_freq; 27391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt req_freq = p2p_channel_to_freq( 27491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[3], 27591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[4]); 276b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Peer operating channel preference: %d MHz", 27791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt req_freq); 27891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt if (req_freq > 0 && 27991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p_channels_includes(&intersection, 28091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[3], 28191c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[4])) { 28291c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class = msg.operating_channel[3]; 28391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel = msg.operating_channel[4]; 284b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Use peer preference op_class %d channel %d", 28591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 28691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } else { 287b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Cannot use peer channel preference"); 28891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 28991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 29091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 29115907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt /* Reselect the channel only for the case of the GO */ 29215907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt if (go && 29315907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt !p2p_channels_includes(&intersection, p2p->op_reg_class, 29491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel)) { 295b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Initially selected channel (op_class %d channel %d) not in channel intersection - try to reselect", 29691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 29791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p_reselect_channel(p2p, &intersection); 298b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Re-selection result: op_class %d channel %d", 29991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 30091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt if (!p2p_channels_includes(&intersection, 30191c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, 30291c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel)) { 303b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Peer does not support selected operating channel (reg_class=%u channel=%u)", 30491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 30591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 30691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt goto fail; 30791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 30815907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt } else if (go && !(dev->flags & P2P_DEV_FORCE_FREQ) && 30944c957860ca714a86357591f39aff0bfa904c743Dmitry Shmidt !p2p->cfg->cfg_op_channel) { 310b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Try to reselect channel selection with peer information received; previously selected op_class %u channel %u", 31144c957860ca714a86357591f39aff0bfa904c743Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 31244c957860ca714a86357591f39aff0bfa904c743Dmitry Shmidt p2p_reselect_channel(p2p, &intersection); 31391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 31491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 3154b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt op_freq = p2p_channel_to_freq(p2p->op_reg_class, 31691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel); 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (op_freq < 0) { 318b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Unknown operational channel (country=%c%c reg_class=%u channel=%u)", 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->country[0], p2p->cfg->country[1], 32091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 324b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Selected operating channel - %d MHz", op_freq); 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status == P2P_SC_SUCCESS) { 32791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt reg_class = p2p->op_reg_class; 32891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt channel = p2p->op_channel; 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt channels = &intersection; 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtfail: 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (go && status == P2P_SC_SUCCESS && !is_zero_ether_addr(group_bssid)) 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid = group_bssid; 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid = NULL; 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp = p2p_build_invitation_resp(p2p, dev, msg.dialog_token, status, 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid, reg_class, channel, channels); 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (resp == NULL) 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rx_freq > 0) 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt freq = rx_freq; 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 3474b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt freq = p2p_channel_to_freq(p2p->cfg->reg_class, 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->channel); 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (freq < 0) { 350b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Unknown regulatory class/channel"); 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Store copy of invitation data to be used when processing TX status 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * callback for the Acton frame. 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_sa, sa, ETH_ALEN); 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (msg.group_bssid) { 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_group_bssid, msg.group_bssid, ETH_ALEN); 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr = p2p->inv_group_bssid; 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr = NULL; 3647d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt if (msg.group_id) { 3657d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt if (msg.group_id_len - ETH_ALEN <= 32) { 3667d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt os_memcpy(p2p->inv_ssid, msg.group_id + ETH_ALEN, 3677d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt msg.group_id_len - ETH_ALEN); 3687d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt p2p->inv_ssid_len = msg.group_id_len - ETH_ALEN; 3697d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt } 3707d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt os_memcpy(p2p->inv_go_dev_addr, msg.group_id, ETH_ALEN); 3717d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt } else { 3727d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt p2p->inv_ssid_len = 0; 3737d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt os_memset(p2p->inv_go_dev_addr, 0, ETH_ALEN); 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_status = status; 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_op_freq = op_freq; 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->pending_action_state = P2P_PENDING_INVITATION_RESPONSE; 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_send_action(p2p, freq, sa, p2p->cfg->dev_addr, 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->dev_addr, 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_head(resp), wpabuf_len(resp), 200) < 0) { 382b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Failed to send Action frame"); 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtout: 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(resp); 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa, 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t len) 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_message msg; 3967a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt struct p2p_channels intersection, *channels = NULL; 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 398b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Received Invitation Response from " MACSTR, 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sa)); 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL) { 403b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Ignore Invitation Response from unknown peer " 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev != p2p->invite_peer) { 409b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Ignore unexpected Invitation Response from peer " 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_parse(data, len, &msg)) 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!msg.status) { 418b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory Status attribute missing in Invitation Response from " 419b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 424051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (!msg.channel_list && *msg.status == P2P_SC_SUCCESS) { 425b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory Channel List attribute missing in Invitation Response from " 426b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 4277a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt#ifdef CONFIG_P2P_STRICT 4287a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p_parse_free(&msg); 4297a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt return; 4307a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt#endif /* CONFIG_P2P_STRICT */ 4317a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt /* Try to survive without peer channel list */ 4327a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt channels = &p2p->channels; 433051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt } else if (!msg.channel_list) { 434051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt /* Non-success cases are not required to include Channel List */ 435051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt channels = &p2p->channels; 4367a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt } else if (p2p_peer_channels_check(p2p, &p2p->channels, dev, 4377a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt msg.channel_list, 4387a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt msg.channel_list_len) < 0) { 439b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No common channels found"); 4407a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p_parse_free(&msg); 4417a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt return; 4427a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt } else { 4437a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p_channels_intersect(&p2p->channels, &dev->channels, 4447a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt &intersection); 4457a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt channels = &intersection; 4467a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt } 4477a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt 448e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (p2p->cfg->invitation_result) { 44915907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt int peer_oper_freq = 0; 450e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt int freq = p2p_channel_to_freq(p2p->op_reg_class, 451e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt p2p->op_channel); 452e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (freq < 0) 453e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt freq = 0; 45415907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt 45515907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt if (msg.operating_channel) { 45615907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt peer_oper_freq = p2p_channel_to_freq( 45715907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt msg.operating_channel[3], 45815907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt msg.operating_channel[4]); 45915907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt if (peer_oper_freq < 0) 46015907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt peer_oper_freq = 0; 46115907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt } 46215907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->invitation_result(p2p->cfg->cb_ctx, *msg.status, 464e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt msg.group_bssid, channels, sa, 46515907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt freq, peer_oper_freq); 466e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt } 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_clear_timeout(p2p); 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_IDLE); 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_peer = NULL; 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev, 477cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt const u8 *go_dev_addr, int dev_pw_id) 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *req; 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int freq; 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt freq = dev->listen_freq > 0 ? dev->listen_freq : dev->oper_freq; 483cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (freq <= 0) 484cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt freq = dev->oob_go_neg_freq; 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (freq <= 0) { 486b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No Listen/Operating frequency known for the peer " 487b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR " to send Invitation Request", 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(dev->info.p2p_device_addr)); 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 492cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt req = p2p_build_invitation_req(p2p, dev, go_dev_addr, dev_pw_id); 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (req == NULL) 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 49504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (p2p->state != P2P_IDLE) 49604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt p2p_stop_listen_for_freq(p2p, freq); 497b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Sending Invitation Request"); 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_INVITE); 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->pending_action_state = P2P_PENDING_INVITATION_REQUEST; 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_peer = dev; 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev->invitation_reqs++; 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_send_action(p2p, freq, dev->info.p2p_device_addr, 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->dev_addr, dev->info.p2p_device_addr, 5049657139ca0bbea9a84e0a3c7e9438d1f53c9ed24Dmitry Shmidt wpabuf_head(req), wpabuf_len(req), 500) < 0) { 505b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Failed to send Action frame"); 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Use P2P find to recover and retry */ 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_timeout(p2p, 0, 0); 5083c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt } else { 5093c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt dev->flags |= P2P_DEV_WAIT_INV_REQ_ACK; 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(req); 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_invitation_req_cb(struct p2p_data *p2p, int success) 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 520b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Request TX callback: success=%d", success); 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->invite_peer == NULL) { 523b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No pending Invite"); 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5273c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt if (success) 5283c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt p2p->invite_peer->flags &= ~P2P_DEV_WAIT_INV_REQ_ACK; 5293c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Use P2P find, if needed, to find the other device from its listen 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * channel. 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_INVITE); 5359657139ca0bbea9a84e0a3c7e9438d1f53c9ed24Dmitry Shmidt p2p_set_timeout(p2p, 0, success ? 500000 : 100000); 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_invitation_resp_cb(struct p2p_data *p2p, int success) 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 541b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Response TX callback: success=%d", success); 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->send_action_done(p2p->cfg->cb_ctx); 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5440ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (!success) 545b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Assume Invitation Response was actually received by the peer even though Ack was not reported"); 5460ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt 5470ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (p2p->cfg->invitation_received) { 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->invitation_received(p2p->cfg->cb_ctx, 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_sa, 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr, 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_ssid, p2p->inv_ssid_len, 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_go_dev_addr, 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_status, 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_op_freq); 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *bssid, const u8 *ssid, size_t ssid_len, 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int force_freq, const u8 *go_dev_addr, 562cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt int persistent_group, unsigned int pref_freq, int dev_pw_id) 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 566b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Request to invite peer " MACSTR " role=%d persistent=%d " 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "force_freq=%u", 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer), role, persistent_group, force_freq); 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (bssid) 570b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation for BSSID " MACSTR, MAC2STR(bssid)); 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (go_dev_addr) { 572b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation for GO Device Address " MACSTR, 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(go_dev_addr)); 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->invite_go_dev_addr_buf, go_dev_addr, ETH_ALEN); 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_go_dev_addr = p2p->invite_go_dev_addr_buf; 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_go_dev_addr = NULL; 578b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt wpa_hexdump_ascii(MSG_DEBUG, "Invitation for SSID", 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ssid, ssid_len); 580cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (dev_pw_id >= 0) { 581cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt p2p_dbg(p2p, "Invitation to use Device Password ID %d", 582cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt dev_pw_id); 583cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt } 584cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt p2p->invite_dev_pw_id = dev_pw_id; 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, peer); 587cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (dev == NULL || (dev->listen_freq <= 0 && dev->oper_freq <= 0 && 588cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt dev->oob_go_neg_freq <= 0)) { 589b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Cannot invite unknown P2P Device " MACSTR, 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer)); 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 59468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, 59568d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt role != P2P_INVITE_ROLE_CLIENT) < 0) 5967a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt return -1; 5977a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt 5987a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt if (persistent_group && role == P2P_INVITE_ROLE_CLIENT && !force_freq && 5997a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt !pref_freq) 6007a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt dev->flags |= P2P_DEV_NO_PREF_CHAN; 6017a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt else 6027a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt dev->flags &= ~P2P_DEV_NO_PREF_CHAN; 6037a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) { 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!(dev->info.dev_capab & 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) { 607b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Cannot invite a P2P Device " MACSTR 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " that is in a group and is not discoverable", 6098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer)); 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: use device discoverability request through GO */ 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev->invitation_reqs = 0; 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->state != P2P_IDLE) 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_stop_find(p2p); 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_role = role; 6208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_bssid_set = bssid != NULL; 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (bssid) 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_bssid, bssid, ETH_ALEN); 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_ssid, ssid, ssid_len); 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_ssid_len = ssid_len; 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_persistent = persistent_group; 626cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt return p2p_invite_send(p2p, dev, go_dev_addr, dev_pw_id); 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 628