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" 132e67f06149ff649fb6f8782bad041d3d9124685eDmitry Shmidt#include "common/wpa_ctrl.h" 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "p2p_i.h" 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "p2p.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_build_invitation_req(struct p2p_data *p2p, 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *peer, 20cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt const u8 *go_dev_addr, 21cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt int dev_pw_id) 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf; 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *dev_addr; 2661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t extra = 0; 2761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 2861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_WIFI_DISPLAY 2961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct wpabuf *wfd_ie = p2p->wfd_ie_invitation; 3061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie && p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) { 3161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t i; 3261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt for (i = 0; i < p2p->num_groups; i++) { 3361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct p2p_group *g = p2p->groups[i]; 3461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct wpabuf *ie; 354530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt if (os_memcmp(p2p_group_get_interface_addr(g), 364530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt p2p->inv_bssid, ETH_ALEN) != 0) 374530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt continue; 3861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ie = p2p_group_get_wfd_ie(g); 3961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (ie) { 4061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wfd_ie = ie; 4161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt break; 4261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 4361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 4461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 4561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie) 4661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt extra = wpabuf_len(wfd_ie); 4761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_WIFI_DISPLAY */ 4861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 492e67f06149ff649fb6f8782bad041d3d9124685eDmitry Shmidt if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_INV_REQ]) 502e67f06149ff649fb6f8782bad041d3d9124685eDmitry Shmidt extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_P2P_INV_REQ]); 512e67f06149ff649fb6f8782bad041d3d9124685eDmitry Shmidt 5261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt buf = wpabuf_alloc(1000 + extra); 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dialog_token++; 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->dialog_token == 0) 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dialog_token = 1; 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_public_action_hdr(buf, P2P_INVITATION_REQ, 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dialog_token); 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = p2p_buf_add_ie_hdr(buf); 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO || !p2p->inv_persistent) 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_config_timeout(buf, 0, 0); 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 6661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt p2p_buf_add_config_timeout(buf, p2p->go_timeout, 6761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt p2p->client_timeout); 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_invitation_flags(buf, p2p->inv_persistent ? 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt P2P_INVITATION_FLAGS_TYPE : 0); 707a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt if (p2p->inv_role != P2P_INVITE_ROLE_CLIENT || 717a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt !(peer->flags & P2P_DEV_NO_PREF_CHAN)) 727a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p_buf_add_operating_channel(buf, p2p->cfg->country, 737a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p->op_reg_class, 747a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p->op_channel); 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->inv_bssid_set) 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_group_bssid(buf, p2p->inv_bssid); 77069fa2c39ec7120656a2ea8cca83c5ee41ddab60Irfan Sheriff p2p_buf_add_channel_list(buf, p2p->cfg->country, &p2p->channels); 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (go_dev_addr) 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_addr = go_dev_addr; 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else if (p2p->inv_role == P2P_INVITE_ROLE_CLIENT) 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_addr = peer->info.p2p_device_addr; 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_addr = p2p->cfg->dev_addr; 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_group_id(buf, dev_addr, p2p->inv_ssid, p2p->inv_ssid_len); 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_device_info(buf, p2p, peer); 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(buf, len); 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_WIFI_DISPLAY 8961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie) 9061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpabuf_put_buf(buf, wfd_ie); 9161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_WIFI_DISPLAY */ 9261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 932e67f06149ff649fb6f8782bad041d3d9124685eDmitry Shmidt if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_INV_REQ]) 942e67f06149ff649fb6f8782bad041d3d9124685eDmitry Shmidt wpabuf_put_buf(buf, p2p->vendor_elem[VENDOR_ELEM_P2P_INV_REQ]); 952e67f06149ff649fb6f8782bad041d3d9124685eDmitry Shmidt 96cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (dev_pw_id >= 0) { 97cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt /* WSC IE in Invitation Request for NFC static handover */ 98cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt p2p_build_wps_ie(p2p, buf, dev_pw_id, 0); 99cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt } 100cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return buf; 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_build_invitation_resp(struct p2p_data *p2p, 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *peer, 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dialog_token, u8 status, 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *group_bssid, 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 reg_class, u8 channel, 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_channels *channels) 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf; 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 11461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t extra = 0; 11561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 11661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_WIFI_DISPLAY 11761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct wpabuf *wfd_ie = p2p->wfd_ie_invitation; 11861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie && group_bssid) { 11961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt size_t i; 12061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt for (i = 0; i < p2p->num_groups; i++) { 12161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct p2p_group *g = p2p->groups[i]; 12261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct wpabuf *ie; 1234530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt if (os_memcmp(p2p_group_get_interface_addr(g), 1244530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt group_bssid, ETH_ALEN) != 0) 12561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt continue; 12661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt ie = p2p_group_get_wfd_ie(g); 12761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (ie) { 12861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wfd_ie = ie; 12961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt break; 13061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 13161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 13261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 13361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie) 13461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt extra = wpabuf_len(wfd_ie); 13561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_WIFI_DISPLAY */ 13661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 13761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt buf = wpabuf_alloc(1000 + extra); 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_public_action_hdr(buf, P2P_INVITATION_RESP, 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dialog_token); 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = p2p_buf_add_ie_hdr(buf); 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_status(buf, status); 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_config_timeout(buf, 0, 0); /* FIX */ 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (reg_class && channel) 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_operating_channel(buf, p2p->cfg->country, 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt reg_class, channel); 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group_bssid) 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_group_bssid(buf, group_bssid); 152069fa2c39ec7120656a2ea8cca83c5ee41ddab60Irfan Sheriff if (channels) 153069fa2c39ec7120656a2ea8cca83c5ee41ddab60Irfan Sheriff p2p_buf_add_channel_list(buf, p2p->cfg->country, channels); 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(buf, len); 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_WIFI_DISPLAY 15761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie) 15861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpabuf_put_buf(buf, wfd_ie); 15961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_WIFI_DISPLAY */ 16061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return buf; 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa, 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t len, int rx_freq) 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_message msg; 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *resp = NULL; 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int freq; 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int go = 0; 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 group_bssid[ETH_ALEN], *bssid; 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int op_freq = 0; 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 reg_class = 0, channel = 0; 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_channels intersection, *channels = NULL; 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int persistent; 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(group_bssid, 0, sizeof(group_bssid)); 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 182b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Received Invitation Request from " MACSTR " (freq=%d)", 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sa), rx_freq); 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_parse(data, len, &msg)) 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) { 190b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Request from unknown peer " MACSTR, 191b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MAC2STR(sa)); 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 193f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (p2p_add_device(p2p, sa, rx_freq, NULL, 0, data + 1, len - 1, 194a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 0)) { 195b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Request add device failed " 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL) { 203b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Reject Invitation Request from unknown peer " 204b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!msg.group_id || !msg.channel_list) { 211b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory attribute missing in Invitation Request from " 212b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INVALID_PARAMS; 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (msg.invitation_flags) 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt persistent = *msg.invitation_flags & P2P_INVITATION_FLAGS_TYPE; 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else { 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Invitation Flags is a mandatory attribute starting from P2P 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * spec 1.06. As a backwards compatibility mechanism, assume 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the request was for a persistent group if the attribute is 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * missing. 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 225b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory Invitation Flags attribute missing from Invitation Request"); 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt persistent = 1; 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_peer_channels_check(p2p, &p2p->cfg->channels, dev, 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.channel_list, msg.channel_list_len) < 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0) { 232b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No common channels found"); 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 237717574375e969e8272c6d1a26137286eac158abbDmitry Shmidt p2p_channels_dump(p2p, "own channels", &p2p->cfg->channels); 238717574375e969e8272c6d1a26137286eac158abbDmitry Shmidt p2p_channels_dump(p2p, "peer channels", &dev->channels); 239f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt p2p_channels_intersect(&p2p->cfg->channels, &dev->channels, 240f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt &intersection); 241717574375e969e8272c6d1a26137286eac158abbDmitry Shmidt p2p_channels_dump(p2p, "intersection", &intersection); 242f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->cfg->invitation_process) { 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = p2p->cfg->invitation_process( 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->cb_ctx, sa, msg.group_bssid, msg.group_id, 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.group_id + ETH_ALEN, msg.group_id_len - ETH_ALEN, 247cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt &go, group_bssid, &op_freq, persistent, &intersection, 248cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt msg.dev_password_id_present ? msg.dev_password_id : -1); 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (op_freq) { 252b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation processing forced frequency %d MHz", 253b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt op_freq); 2544b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt if (p2p_freq_to_channel(op_freq, ®_class, &channel) < 0) { 255b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Unknown forced freq %d MHz from invitation_process()", 256b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt op_freq); 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!p2p_channels_includes(&intersection, reg_class, channel)) 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt { 263b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "forced freq %d MHz not in the supported channels interaction", 264b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt op_freq); 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status == P2P_SC_SUCCESS) 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt channels = &intersection; 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 272b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No forced channel from invitation processing - figure out best one to use"); 27391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 27491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt /* Default to own configuration as a starting point */ 27591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class = p2p->cfg->op_reg_class; 27691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel = p2p->cfg->op_channel; 277b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Own default op_class %d channel %d", 27891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 27991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 28091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt /* Use peer preference if specified and compatible */ 28191c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt if (msg.operating_channel) { 28291c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt int req_freq; 28391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt req_freq = p2p_channel_to_freq( 28491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[3], 28591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[4]); 286b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Peer operating channel preference: %d MHz", 28791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt req_freq); 28891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt if (req_freq > 0 && 28991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p_channels_includes(&intersection, 29091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[3], 29191c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[4])) { 29291c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class = msg.operating_channel[3]; 29391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel = msg.operating_channel[4]; 294b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Use peer preference op_class %d channel %d", 29591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 29691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } else { 297b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Cannot use peer channel preference"); 29891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 29991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 30091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 30115907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt /* Reselect the channel only for the case of the GO */ 30215907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt if (go && 30315907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt !p2p_channels_includes(&intersection, p2p->op_reg_class, 30491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel)) { 305b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Initially selected channel (op_class %d channel %d) not in channel intersection - try to reselect", 30691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 30791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p_reselect_channel(p2p, &intersection); 308b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Re-selection result: op_class %d channel %d", 30991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 31091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt if (!p2p_channels_includes(&intersection, 31191c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, 31291c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel)) { 313b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Peer does not support selected operating channel (reg_class=%u channel=%u)", 31491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 31591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 31691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt goto fail; 31791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 31815907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt } else if (go && !(dev->flags & P2P_DEV_FORCE_FREQ) && 31944c957860ca714a86357591f39aff0bfa904c743Dmitry Shmidt !p2p->cfg->cfg_op_channel) { 320b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Try to reselect channel selection with peer information received; previously selected op_class %u channel %u", 32144c957860ca714a86357591f39aff0bfa904c743Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 32244c957860ca714a86357591f39aff0bfa904c743Dmitry Shmidt p2p_reselect_channel(p2p, &intersection); 32391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 32491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 3254b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt op_freq = p2p_channel_to_freq(p2p->op_reg_class, 32691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel); 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (op_freq < 0) { 328b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Unknown operational channel (country=%c%c reg_class=%u channel=%u)", 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->country[0], p2p->cfg->country[1], 33091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 334b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Selected operating channel - %d MHz", op_freq); 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status == P2P_SC_SUCCESS) { 33791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt reg_class = p2p->op_reg_class; 33891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt channel = p2p->op_channel; 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt channels = &intersection; 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtfail: 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (go && status == P2P_SC_SUCCESS && !is_zero_ether_addr(group_bssid)) 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid = group_bssid; 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid = NULL; 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp = p2p_build_invitation_resp(p2p, dev, msg.dialog_token, status, 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid, reg_class, channel, channels); 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (resp == NULL) 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rx_freq > 0) 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt freq = rx_freq; 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 3574b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt freq = p2p_channel_to_freq(p2p->cfg->reg_class, 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->channel); 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (freq < 0) { 360b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Unknown regulatory class/channel"); 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Store copy of invitation data to be used when processing TX status 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * callback for the Acton frame. 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_sa, sa, ETH_ALEN); 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (msg.group_bssid) { 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_group_bssid, msg.group_bssid, ETH_ALEN); 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr = p2p->inv_group_bssid; 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr = NULL; 3747d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt if (msg.group_id) { 3757d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt if (msg.group_id_len - ETH_ALEN <= 32) { 3767d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt os_memcpy(p2p->inv_ssid, msg.group_id + ETH_ALEN, 3777d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt msg.group_id_len - ETH_ALEN); 3787d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt p2p->inv_ssid_len = msg.group_id_len - ETH_ALEN; 3797d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt } 3807d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt os_memcpy(p2p->inv_go_dev_addr, msg.group_id, ETH_ALEN); 3817d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt } else { 3827d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt p2p->inv_ssid_len = 0; 3837d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt os_memset(p2p->inv_go_dev_addr, 0, ETH_ALEN); 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_status = status; 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_op_freq = op_freq; 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->pending_action_state = P2P_PENDING_INVITATION_RESPONSE; 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_send_action(p2p, freq, sa, p2p->cfg->dev_addr, 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->dev_addr, 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_head(resp), wpabuf_len(resp), 200) < 0) { 392b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Failed to send Action frame"); 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtout: 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(resp); 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa, 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t len) 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_message msg; 4067a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt struct p2p_channels intersection, *channels = NULL; 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 408b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Received Invitation Response from " MACSTR, 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sa)); 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL) { 413b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Ignore Invitation Response from unknown peer " 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev != p2p->invite_peer) { 419b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Ignore unexpected Invitation Response from peer " 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_parse(data, len, &msg)) 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!msg.status) { 428b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory Status attribute missing in Invitation Response from " 429b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 434051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (!msg.channel_list && *msg.status == P2P_SC_SUCCESS) { 435b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory Channel List attribute missing in Invitation Response from " 436b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 4377a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt#ifdef CONFIG_P2P_STRICT 4387a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p_parse_free(&msg); 4397a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt return; 4407a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt#endif /* CONFIG_P2P_STRICT */ 4417a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt /* Try to survive without peer channel list */ 4427a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt channels = &p2p->channels; 443051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt } else if (!msg.channel_list) { 444051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt /* Non-success cases are not required to include Channel List */ 445051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt channels = &p2p->channels; 4467a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt } else if (p2p_peer_channels_check(p2p, &p2p->channels, dev, 4477a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt msg.channel_list, 4487a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt msg.channel_list_len) < 0) { 449b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No common channels found"); 4507a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p_parse_free(&msg); 4517a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt return; 4527a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt } else { 4537a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p_channels_intersect(&p2p->channels, &dev->channels, 4547a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt &intersection); 4557a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt channels = &intersection; 4567a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt } 4577a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt 458e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (p2p->cfg->invitation_result) { 45915907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt int peer_oper_freq = 0; 460e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt int freq = p2p_channel_to_freq(p2p->op_reg_class, 461e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt p2p->op_channel); 462e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (freq < 0) 463e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt freq = 0; 46415907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt 46515907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt if (msg.operating_channel) { 46615907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt peer_oper_freq = p2p_channel_to_freq( 46715907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt msg.operating_channel[3], 46815907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt msg.operating_channel[4]); 46915907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt if (peer_oper_freq < 0) 47015907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt peer_oper_freq = 0; 47115907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt } 47215907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->invitation_result(p2p->cfg->cb_ctx, *msg.status, 474e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt msg.group_bssid, channels, sa, 47515907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt freq, peer_oper_freq); 476e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt } 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_clear_timeout(p2p); 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_IDLE); 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_peer = NULL; 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev, 487cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt const u8 *go_dev_addr, int dev_pw_id) 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *req; 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int freq; 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt freq = dev->listen_freq > 0 ? dev->listen_freq : dev->oper_freq; 493cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (freq <= 0) 494cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt freq = dev->oob_go_neg_freq; 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (freq <= 0) { 496b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No Listen/Operating frequency known for the peer " 497b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR " to send Invitation Request", 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(dev->info.p2p_device_addr)); 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 502cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt req = p2p_build_invitation_req(p2p, dev, go_dev_addr, dev_pw_id); 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (req == NULL) 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 50504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (p2p->state != P2P_IDLE) 50604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt p2p_stop_listen_for_freq(p2p, freq); 507b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Sending Invitation Request"); 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_INVITE); 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->pending_action_state = P2P_PENDING_INVITATION_REQUEST; 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_peer = dev; 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev->invitation_reqs++; 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_send_action(p2p, freq, dev->info.p2p_device_addr, 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->dev_addr, dev->info.p2p_device_addr, 5149657139ca0bbea9a84e0a3c7e9438d1f53c9ed24Dmitry Shmidt wpabuf_head(req), wpabuf_len(req), 500) < 0) { 515b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Failed to send Action frame"); 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Use P2P find to recover and retry */ 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_timeout(p2p, 0, 0); 5183c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt } else { 5193c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt dev->flags |= P2P_DEV_WAIT_INV_REQ_ACK; 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(req); 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_invitation_req_cb(struct p2p_data *p2p, int success) 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 530b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Request TX callback: success=%d", success); 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->invite_peer == NULL) { 533b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No pending Invite"); 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5373c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt if (success) 5383c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt p2p->invite_peer->flags &= ~P2P_DEV_WAIT_INV_REQ_ACK; 5393c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Use P2P find, if needed, to find the other device from its listen 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * channel. 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_INVITE); 5459657139ca0bbea9a84e0a3c7e9438d1f53c9ed24Dmitry Shmidt p2p_set_timeout(p2p, 0, success ? 500000 : 100000); 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_invitation_resp_cb(struct p2p_data *p2p, int success) 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 551b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Response TX callback: success=%d", success); 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->send_action_done(p2p->cfg->cb_ctx); 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5540ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (!success) 555b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Assume Invitation Response was actually received by the peer even though Ack was not reported"); 5560ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt 5570ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (p2p->cfg->invitation_received) { 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->invitation_received(p2p->cfg->cb_ctx, 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_sa, 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr, 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_ssid, p2p->inv_ssid_len, 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_go_dev_addr, 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_status, 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_op_freq); 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *bssid, const u8 *ssid, size_t ssid_len, 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int force_freq, const u8 *go_dev_addr, 572cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt int persistent_group, unsigned int pref_freq, int dev_pw_id) 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 576b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Request to invite peer " MACSTR " role=%d persistent=%d " 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "force_freq=%u", 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer), role, persistent_group, force_freq); 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (bssid) 580b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation for BSSID " MACSTR, MAC2STR(bssid)); 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (go_dev_addr) { 582b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation for GO Device Address " MACSTR, 5838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(go_dev_addr)); 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->invite_go_dev_addr_buf, go_dev_addr, ETH_ALEN); 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_go_dev_addr = p2p->invite_go_dev_addr_buf; 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_go_dev_addr = NULL; 588b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt wpa_hexdump_ascii(MSG_DEBUG, "Invitation for SSID", 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ssid, ssid_len); 590cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (dev_pw_id >= 0) { 591cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt p2p_dbg(p2p, "Invitation to use Device Password ID %d", 592cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt dev_pw_id); 593cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt } 594cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt p2p->invite_dev_pw_id = dev_pw_id; 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, peer); 597cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (dev == NULL || (dev->listen_freq <= 0 && dev->oper_freq <= 0 && 598cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt dev->oob_go_neg_freq <= 0)) { 599b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Cannot invite unknown P2P Device " MACSTR, 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer)); 6018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 60468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, 60568d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt role != P2P_INVITE_ROLE_CLIENT) < 0) 6067a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt return -1; 6077a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt 6087a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt if (persistent_group && role == P2P_INVITE_ROLE_CLIENT && !force_freq && 6097a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt !pref_freq) 6107a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt dev->flags |= P2P_DEV_NO_PREF_CHAN; 6117a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt else 6127a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt dev->flags &= ~P2P_DEV_NO_PREF_CHAN; 6137a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) { 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!(dev->info.dev_capab & 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) { 617b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Cannot invite a P2P Device " MACSTR 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " that is in a group and is not discoverable", 6198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer)); 6208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: use device discoverability request through GO */ 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev->invitation_reqs = 0; 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->state != P2P_IDLE) 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_stop_find(p2p); 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_role = role; 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_bssid_set = bssid != NULL; 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (bssid) 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_bssid, bssid, ETH_ALEN); 6338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_ssid, ssid, ssid_len); 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_ssid_len = ssid_len; 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_persistent = persistent_group; 636cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt return p2p_invite_send(p2p, dev, go_dev_addr, dev_pw_id); 6378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 638