18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Wi-Fi Direct - P2P Invitation procedure 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2010, Atheros Communications 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 58d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This program is free software; you can redistribute it and/or modify 68d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * it under the terms of the GNU General Public License version 2 as 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * published by the Free Software Foundation. 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Alternatively, this software may be distributed under the terms of BSD 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * license. 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * See README and COPYING for more details. 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "includes.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common.h" 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_defs.h" 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "p2p_i.h" 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "p2p.h" 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_build_invitation_req(struct p2p_data *p2p, 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *peer, 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *go_dev_addr) 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf; 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *dev_addr; 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = wpabuf_alloc(1000); 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dialog_token++; 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->dialog_token == 0) 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dialog_token = 1; 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_public_action_hdr(buf, P2P_INVITATION_REQ, 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dialog_token); 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = p2p_buf_add_ie_hdr(buf); 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO || !p2p->inv_persistent) 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_config_timeout(buf, 0, 0); 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_config_timeout(buf, 100, 20); 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_invitation_flags(buf, p2p->inv_persistent ? 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt P2P_INVITATION_FLAGS_TYPE : 0); 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_operating_channel(buf, p2p->cfg->country, 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->inv_bssid_set) 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_group_bssid(buf, p2p->inv_bssid); 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_channel_list(buf, p2p->cfg->country, &p2p->channels); 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (go_dev_addr) 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_addr = go_dev_addr; 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else if (p2p->inv_role == P2P_INVITE_ROLE_CLIENT) 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_addr = peer->info.p2p_device_addr; 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 58497c1d5e50162d6b3c1cce5dbd9c5fd9da69aaefDmitry Shmidt#ifdef ANDROID_BRCM_P2P_PATCH 59497c1d5e50162d6b3c1cce5dbd9c5fd9da69aaefDmitry Shmidt dev_addr = p2p->cfg->p2p_dev_addr; 60497c1d5e50162d6b3c1cce5dbd9c5fd9da69aaefDmitry Shmidt#else 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_addr = p2p->cfg->dev_addr; 62497c1d5e50162d6b3c1cce5dbd9c5fd9da69aaefDmitry Shmidt#endif 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_group_id(buf, dev_addr, p2p->inv_ssid, p2p->inv_ssid_len); 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_device_info(buf, p2p, peer); 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(buf, len); 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return buf; 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_build_invitation_resp(struct p2p_data *p2p, 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *peer, 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dialog_token, u8 status, 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *group_bssid, 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 reg_class, u8 channel, 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_channels *channels) 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf; 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = wpabuf_alloc(1000); 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_public_action_hdr(buf, P2P_INVITATION_RESP, 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dialog_token); 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = p2p_buf_add_ie_hdr(buf); 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_status(buf, status); 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_config_timeout(buf, 0, 0); /* FIX */ 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (reg_class && channel) 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_operating_channel(buf, p2p->cfg->country, 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt reg_class, channel); 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group_bssid) 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_group_bssid(buf, group_bssid); 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (channels) 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_channel_list(buf, p2p->cfg->country, channels); 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(buf, len); 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return buf; 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa, 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t len, int rx_freq) 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_message msg; 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *resp = NULL; 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int freq; 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int go = 0; 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 group_bssid[ETH_ALEN], *bssid; 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int op_freq = 0; 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 reg_class = 0, channel = 0; 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_channels intersection, *channels = NULL; 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int persistent; 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(group_bssid, 0, sizeof(group_bssid)); 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Received Invitation Request from " MACSTR " (freq=%d)", 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sa), rx_freq); 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_parse(data, len, &msg)) 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) { 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Invitation Request from unknown peer " 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_add_device(p2p, sa, rx_freq, 0, data + 1, len - 1)) { 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Invitation Request add device failed " 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL) { 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Reject Invitation Request from unknown " 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "peer " MACSTR, MAC2STR(sa)); 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!msg.group_id || !msg.channel_list) { 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Mandatory attribute missing in Invitation " 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Request from " MACSTR, MAC2STR(sa)); 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INVALID_PARAMS; 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (msg.invitation_flags) 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt persistent = *msg.invitation_flags & P2P_INVITATION_FLAGS_TYPE; 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else { 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Invitation Flags is a mandatory attribute starting from P2P 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * spec 1.06. As a backwards compatibility mechanism, assume 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the request was for a persistent group if the attribute is 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * missing. 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: Mandatory Invitation Flags " 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "attribute missing from Invitation Request"); 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt persistent = 1; 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_peer_channels_check(p2p, &p2p->cfg->channels, dev, 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.channel_list, msg.channel_list_len) < 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0) { 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: No common channels found"); 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->cfg->invitation_process) { 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = p2p->cfg->invitation_process( 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->cb_ctx, sa, msg.group_bssid, msg.group_id, 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.group_id + ETH_ALEN, msg.group_id_len - ETH_ALEN, 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &go, group_bssid, &op_freq, persistent); 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (op_freq) { 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_freq_to_channel(p2p->cfg->country, op_freq, 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ®_class, &channel) < 0) { 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Unknown forced freq %d MHz from " 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "invitation_process()", op_freq); 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_channels_intersect(&p2p->cfg->channels, &dev->channels, 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &intersection); 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!p2p_channels_includes(&intersection, reg_class, channel)) 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt { 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: forced freq %d MHz not in the supported " 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "channels interaction", op_freq); 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status == P2P_SC_SUCCESS) 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt channels = &intersection; 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt op_freq = p2p_channel_to_freq(p2p->cfg->country, 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->op_reg_class, 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->op_channel); 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (op_freq < 0) { 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Unknown operational channel " 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(country=%c%c reg_class=%u channel=%u)", 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->country[0], p2p->cfg->country[1], 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->op_reg_class, p2p->cfg->op_channel); 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_channels_intersect(&p2p->cfg->channels, &dev->channels, 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &intersection); 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status == P2P_SC_SUCCESS) { 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt reg_class = p2p->cfg->op_reg_class; 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt channel = p2p->cfg->op_channel; 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt channels = &intersection; 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtfail: 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (go && status == P2P_SC_SUCCESS && !is_zero_ether_addr(group_bssid)) 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid = group_bssid; 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid = NULL; 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp = p2p_build_invitation_resp(p2p, dev, msg.dialog_token, status, 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid, reg_class, channel, channels); 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (resp == NULL) 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rx_freq > 0) 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt freq = rx_freq; 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt freq = p2p_channel_to_freq(p2p->cfg->country, 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->reg_class, 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->channel); 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (freq < 0) { 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Unknown regulatory class/channel"); 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Store copy of invitation data to be used when processing TX status 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * callback for the Acton frame. 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_sa, sa, ETH_ALEN); 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (msg.group_bssid) { 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_group_bssid, msg.group_bssid, ETH_ALEN); 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr = p2p->inv_group_bssid; 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr = NULL; 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (msg.group_id_len - ETH_ALEN <= 32) { 2698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_ssid, msg.group_id + ETH_ALEN, 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.group_id_len - ETH_ALEN); 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_ssid_len = msg.group_id_len - ETH_ALEN; 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_go_dev_addr, msg.group_id, ETH_ALEN); 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_status = status; 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_op_freq = op_freq; 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->pending_action_state = P2P_PENDING_INVITATION_RESPONSE; 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_send_action(p2p, freq, sa, p2p->cfg->dev_addr, 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->dev_addr, 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_head(resp), wpabuf_len(resp), 200) < 0) { 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Failed to send Action frame"); 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtout: 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(resp); 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa, 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t len) 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_message msg; 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Received Invitation Response from " MACSTR, 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sa)); 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL) { 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 3048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Ignore Invitation Response from unknown peer " 3058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev != p2p->invite_peer) { 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Ignore unexpected Invitation Response from peer " 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_parse(data, len, &msg)) 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!msg.status) { 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Mandatory Status attribute missing in " 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Invitation Response from " MACSTR, MAC2STR(sa)); 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->cfg->invitation_result) 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->invitation_result(p2p->cfg->cb_ctx, *msg.status, 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.group_bssid); 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_clear_timeout(p2p); 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_IDLE); 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_peer = NULL; 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev, 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *go_dev_addr) 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *req; 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int freq; 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt freq = dev->listen_freq > 0 ? dev->listen_freq : dev->oper_freq; 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (freq <= 0) { 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: No Listen/Operating frequency known for the " 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "peer " MACSTR " to send Invitation Request", 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(dev->info.p2p_device_addr)); 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req = p2p_build_invitation_req(p2p, dev, go_dev_addr); 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (req == NULL) 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Sending Invitation Request"); 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_INVITE); 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->pending_action_state = P2P_PENDING_INVITATION_REQUEST; 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_peer = dev; 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev->invitation_reqs++; 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_send_action(p2p, freq, dev->info.p2p_device_addr, 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->dev_addr, dev->info.p2p_device_addr, 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_head(req), wpabuf_len(req), 200) < 0) { 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Failed to send Action frame"); 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Use P2P find to recover and retry */ 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_timeout(p2p, 0, 0); 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(req); 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_invitation_req_cb(struct p2p_data *p2p, int success) 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Invitation Request TX callback: success=%d", success); 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->invite_peer == NULL) { 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: No pending Invite"); 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Use P2P find, if needed, to find the other device from its listen 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * channel. 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_INVITE); 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_timeout(p2p, 0, 100000); 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_invitation_resp_cb(struct p2p_data *p2p, int success) 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Invitation Response TX callback: success=%d", success); 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->send_action_done(p2p->cfg->cb_ctx); 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (success && p2p->cfg->invitation_received) { 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->invitation_received(p2p->cfg->cb_ctx, 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_sa, 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr, 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_ssid, p2p->inv_ssid_len, 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_go_dev_addr, 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_status, 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_op_freq); 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *bssid, const u8 *ssid, size_t ssid_len, 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int force_freq, const u8 *go_dev_addr, 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int persistent_group) 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Request to invite peer " MACSTR " role=%d persistent=%d " 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "force_freq=%u", 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer), role, persistent_group, force_freq); 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (bssid) 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Invitation for BSSID " MACSTR, MAC2STR(bssid)); 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (go_dev_addr) { 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Invitation for GO Device Address " MACSTR, 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(go_dev_addr)); 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->invite_go_dev_addr_buf, go_dev_addr, ETH_ALEN); 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_go_dev_addr = p2p->invite_go_dev_addr_buf; 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_go_dev_addr = NULL; 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_ascii(MSG_DEBUG, "P2P: Invitation for SSID", 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ssid, ssid_len); 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, peer); 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL || (dev->listen_freq <= 0 && dev->oper_freq <= 0)) { 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Cannot invite unknown P2P Device " MACSTR, 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer)); 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) { 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!(dev->info.dev_capab & 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) { 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Cannot invite a P2P Device " MACSTR 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " that is in a group and is not discoverable", 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer)); 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: use device discoverability request through GO */ 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev->invitation_reqs = 0; 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (force_freq) { 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_freq_to_channel(p2p->cfg->country, force_freq, 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &p2p->op_reg_class, &p2p->op_channel) < 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0) { 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Unsupported frequency %u MHz", 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt force_freq); 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->channels.reg_classes = 1; 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->channels.reg_class[0].channels = 1; 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->channels.reg_class[0].reg_class = p2p->op_reg_class; 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->channels.reg_class[0].channel[0] = p2p->op_channel; 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->op_reg_class = p2p->cfg->op_reg_class; 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->op_channel = p2p->cfg->op_channel; 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(&p2p->channels, &p2p->cfg->channels, 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct p2p_channels)); 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->state != P2P_IDLE) 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_stop_find(p2p); 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_role = role; 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_bssid_set = bssid != NULL; 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (bssid) 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_bssid, bssid, ETH_ALEN); 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_ssid, ssid, ssid_len); 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_ssid_len = ssid_len; 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_persistent = persistent_group; 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return p2p_invite_send(p2p, dev, go_dev_addr); 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 494