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 137a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_INV_RESP]) 138a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_P2P_INV_RESP]); 139a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 14061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt buf = wpabuf_alloc(1000 + extra); 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_public_action_hdr(buf, P2P_INVITATION_RESP, 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dialog_token); 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = p2p_buf_add_ie_hdr(buf); 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_status(buf, status); 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_config_timeout(buf, 0, 0); /* FIX */ 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (reg_class && channel) 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_operating_channel(buf, p2p->cfg->country, 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt reg_class, channel); 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group_bssid) 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_group_bssid(buf, group_bssid); 155069fa2c39ec7120656a2ea8cca83c5ee41ddab60Irfan Sheriff if (channels) 156069fa2c39ec7120656a2ea8cca83c5ee41ddab60Irfan Sheriff p2p_buf_add_channel_list(buf, p2p->cfg->country, channels); 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(buf, len); 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#ifdef CONFIG_WIFI_DISPLAY 16061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wfd_ie) 16161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpabuf_put_buf(buf, wfd_ie); 16261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt#endif /* CONFIG_WIFI_DISPLAY */ 16361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 164a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_INV_RESP]) 165a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_buf(buf, p2p->vendor_elem[VENDOR_ELEM_P2P_INV_RESP]); 166a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return buf; 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa, 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t len, int rx_freq) 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_message msg; 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *resp = NULL; 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int freq; 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int go = 0; 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 group_bssid[ETH_ALEN], *bssid; 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int op_freq = 0; 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 reg_class = 0, channel = 0; 1836c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt struct p2p_channels all_channels, intersection, *channels = NULL; 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int persistent; 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(group_bssid, 0, sizeof(group_bssid)); 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 188b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Received Invitation Request from " MACSTR " (freq=%d)", 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sa), rx_freq); 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_parse(data, len, &msg)) 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) { 196b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Request from unknown peer " MACSTR, 197b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MAC2STR(sa)); 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 199f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (p2p_add_device(p2p, sa, rx_freq, NULL, 0, data + 1, len - 1, 200a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 0)) { 201b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Request add device failed " 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL) { 209b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Reject Invitation Request from unknown peer " 210b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!msg.group_id || !msg.channel_list) { 217b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory attribute missing in Invitation Request from " 218b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_INVALID_PARAMS; 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (msg.invitation_flags) 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt persistent = *msg.invitation_flags & P2P_INVITATION_FLAGS_TYPE; 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else { 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Invitation Flags is a mandatory attribute starting from P2P 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * spec 1.06. As a backwards compatibility mechanism, assume 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the request was for a persistent group if the attribute is 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * missing. 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 231b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory Invitation Flags attribute missing from Invitation Request"); 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt persistent = 1; 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2356c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_channels_union(&p2p->cfg->channels, &p2p->cfg->cli_channels, 2366c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt &all_channels); 2376c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt 2386c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt if (p2p_peer_channels_check(p2p, &all_channels, dev, 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.channel_list, msg.channel_list_len) < 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0) { 241b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No common channels found"); 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 246717574375e969e8272c6d1a26137286eac158abbDmitry Shmidt p2p_channels_dump(p2p, "own channels", &p2p->cfg->channels); 2476c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_channels_dump(p2p, "own client channels", &all_channels); 248717574375e969e8272c6d1a26137286eac158abbDmitry Shmidt p2p_channels_dump(p2p, "peer channels", &dev->channels); 2496c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_channels_intersect(&all_channels, &dev->channels, 250f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt &intersection); 251717574375e969e8272c6d1a26137286eac158abbDmitry Shmidt p2p_channels_dump(p2p, "intersection", &intersection); 252f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->cfg->invitation_process) { 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = p2p->cfg->invitation_process( 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->cb_ctx, sa, msg.group_bssid, msg.group_id, 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.group_id + ETH_ALEN, msg.group_id_len - ETH_ALEN, 257cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt &go, group_bssid, &op_freq, persistent, &intersection, 258cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt msg.dev_password_id_present ? msg.dev_password_id : -1); 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2616c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt if (go) { 2626c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_channels_intersect(&p2p->cfg->channels, &dev->channels, 2636c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt &intersection); 2646c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_channels_dump(p2p, "intersection(GO)", &intersection); 2656c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt if (intersection.reg_classes == 0) { 2666c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_dbg(p2p, "No common channels found (GO)"); 2676c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2686c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt goto fail; 2696c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt } 2706c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt } 2716c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (op_freq) { 273b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation processing forced frequency %d MHz", 274b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt op_freq); 2754b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt if (p2p_freq_to_channel(op_freq, ®_class, &channel) < 0) { 276b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Unknown forced freq %d MHz from invitation_process()", 277b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt op_freq); 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!p2p_channels_includes(&intersection, reg_class, channel)) 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt { 284b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "forced freq %d MHz not in the supported channels interaction", 285b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt op_freq); 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status == P2P_SC_SUCCESS) 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt channels = &intersection; 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 293b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No forced channel from invitation processing - figure out best one to use"); 29491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 29591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt /* Default to own configuration as a starting point */ 29691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class = p2p->cfg->op_reg_class; 29791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel = p2p->cfg->op_channel; 298b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Own default op_class %d channel %d", 29991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 30091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 30191c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt /* Use peer preference if specified and compatible */ 30291c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt if (msg.operating_channel) { 30391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt int req_freq; 30491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt req_freq = p2p_channel_to_freq( 30591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[3], 30691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[4]); 307b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Peer operating channel preference: %d MHz", 30891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt req_freq); 30991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt if (req_freq > 0 && 31091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p_channels_includes(&intersection, 31191c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[3], 31291c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt msg.operating_channel[4])) { 31391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class = msg.operating_channel[3]; 31491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel = msg.operating_channel[4]; 315b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Use peer preference op_class %d channel %d", 31691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 31791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } else { 318b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Cannot use peer channel preference"); 31991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 32091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 32191c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 32215907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt /* Reselect the channel only for the case of the GO */ 32315907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt if (go && 32415907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt !p2p_channels_includes(&intersection, p2p->op_reg_class, 32591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel)) { 326b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Initially selected channel (op_class %d channel %d) not in channel intersection - try to reselect", 32791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 32891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p_reselect_channel(p2p, &intersection); 329b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Re-selection result: op_class %d channel %d", 33091c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 33191c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt if (!p2p_channels_includes(&intersection, 33291c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, 33391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel)) { 334b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Peer does not support selected operating channel (reg_class=%u channel=%u)", 33591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 33691c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 33791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt goto fail; 33891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 33915907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt } else if (go && !(dev->flags & P2P_DEV_FORCE_FREQ) && 34044c957860ca714a86357591f39aff0bfa904c743Dmitry Shmidt !p2p->cfg->cfg_op_channel) { 341b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Try to reselect channel selection with peer information received; previously selected op_class %u channel %u", 34244c957860ca714a86357591f39aff0bfa904c743Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 34344c957860ca714a86357591f39aff0bfa904c743Dmitry Shmidt p2p_reselect_channel(p2p, &intersection); 34491c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt } 34591c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt 3464b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt op_freq = p2p_channel_to_freq(p2p->op_reg_class, 34791c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_channel); 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (op_freq < 0) { 349b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Unknown operational channel (country=%c%c reg_class=%u channel=%u)", 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->country[0], p2p->cfg->country[1], 35191c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt p2p->op_reg_class, p2p->op_channel); 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto fail; 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 355b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Selected operating channel - %d MHz", op_freq); 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status == P2P_SC_SUCCESS) { 35891c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt reg_class = p2p->op_reg_class; 35991c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt channel = p2p->op_channel; 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt channels = &intersection; 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtfail: 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (go && status == P2P_SC_SUCCESS && !is_zero_ether_addr(group_bssid)) 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid = group_bssid; 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid = NULL; 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp = p2p_build_invitation_resp(p2p, dev, msg.dialog_token, status, 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt bssid, reg_class, channel, channels); 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (resp == NULL) 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rx_freq > 0) 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt freq = rx_freq; 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 3784b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt freq = p2p_channel_to_freq(p2p->cfg->reg_class, 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->channel); 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (freq < 0) { 381b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Unknown regulatory class/channel"); 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto out; 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Store copy of invitation data to be used when processing TX status 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * callback for the Acton frame. 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_sa, sa, ETH_ALEN); 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (msg.group_bssid) { 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_group_bssid, msg.group_bssid, ETH_ALEN); 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr = p2p->inv_group_bssid; 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr = NULL; 3957d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt if (msg.group_id) { 3969d9e60286e05ae45025b672636490bd12586138dDmitry Shmidt if (msg.group_id_len - ETH_ALEN <= SSID_MAX_LEN) { 3977d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt os_memcpy(p2p->inv_ssid, msg.group_id + ETH_ALEN, 3987d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt msg.group_id_len - ETH_ALEN); 3997d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt p2p->inv_ssid_len = msg.group_id_len - ETH_ALEN; 4007d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt } 4017d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt os_memcpy(p2p->inv_go_dev_addr, msg.group_id, ETH_ALEN); 4027d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt } else { 4037d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt p2p->inv_ssid_len = 0; 4047d5c8f257a74ac0d12828962a492e8b84ef83923Dmitry Shmidt os_memset(p2p->inv_go_dev_addr, 0, ETH_ALEN); 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_status = status; 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_op_freq = op_freq; 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->pending_action_state = P2P_PENDING_INVITATION_RESPONSE; 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_send_action(p2p, freq, sa, p2p->cfg->dev_addr, 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->dev_addr, 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_head(resp), wpabuf_len(resp), 200) < 0) { 413b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Failed to send Action frame"); 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtout: 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(resp); 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa, 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t len) 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_message msg; 4277a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt struct p2p_channels intersection, *channels = NULL; 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 429b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Received Invitation Response from " MACSTR, 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sa)); 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, sa); 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev == NULL) { 434b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Ignore Invitation Response from unknown peer " 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 4366c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->cfg->send_action_done(p2p->cfg->cb_ctx); 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev != p2p->invite_peer) { 441b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Ignore unexpected Invitation Response from peer " 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(sa)); 4436c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->cfg->send_action_done(p2p->cfg->cb_ctx); 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4476c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt if (p2p_parse(data, len, &msg)) { 4486c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->cfg->send_action_done(p2p->cfg->cb_ctx); 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4506c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt } 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!msg.status) { 453b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory Status attribute missing in Invitation Response from " 454b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 4566c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->cfg->send_action_done(p2p->cfg->cb_ctx); 4576c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt return; 4586c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt } 4596c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt 4606c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt /* 4616c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt * We should not really receive a replayed response twice since 4626c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt * duplicate frames are supposed to be dropped. However, not all drivers 4636c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt * do that for pre-association frames. We did not use to verify dialog 4646c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt * token matches for invitation response frames, but that check can be 4656c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt * safely used to drop a replayed response to the previous Invitation 4666c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt * Request in case the suggested operating channel was changed. This 4676c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt * allows a duplicated reject frame to be dropped with the assumption 4686c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt * that the real response follows after it. 4696c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt */ 4706c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt if (*msg.status == P2P_SC_FAIL_NO_COMMON_CHANNELS && 4716c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->retry_invite_req_sent && 4726c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt msg.dialog_token != dev->dialog_token) { 4736c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_dbg(p2p, "Unexpected Dialog Token %u (expected %u)", 4746c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt msg.dialog_token, dev->dialog_token); 4756c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_parse_free(&msg); 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4796c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt if (*msg.status == P2P_SC_FAIL_NO_COMMON_CHANNELS && 4806c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->retry_invite_req && 4816c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_channel_random_social(&p2p->cfg->channels, &p2p->op_reg_class, 4826c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt &p2p->op_channel) == 0) { 4836c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->retry_invite_req = 0; 4846c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->cfg->send_action_done(p2p->cfg->cb_ctx); 4856c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->cfg->stop_listen(p2p->cfg->cb_ctx); 4866c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_set_state(p2p, P2P_INVITE); 4876c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_dbg(p2p, "Resend Invitation Request setting op_class %u channel %u as operating channel", 4886c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->op_reg_class, p2p->op_channel); 4896c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->retry_invite_req_sent = 1; 4906c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr, 4916c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->invite_dev_pw_id); 4926c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p_parse_free(&msg); 4936c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt return; 4946c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt } 4956c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->cfg->send_action_done(p2p->cfg->cb_ctx); 4966c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->retry_invite_req = 0; 4976c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt 498051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (!msg.channel_list && *msg.status == P2P_SC_SUCCESS) { 499b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Mandatory Channel List attribute missing in Invitation Response from " 500b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR, MAC2STR(sa)); 5017a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt#ifdef CONFIG_P2P_STRICT 5027a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p_parse_free(&msg); 5037a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt return; 5047a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt#endif /* CONFIG_P2P_STRICT */ 5057a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt /* Try to survive without peer channel list */ 5067a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt channels = &p2p->channels; 507051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt } else if (!msg.channel_list) { 508051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt /* Non-success cases are not required to include Channel List */ 509051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt channels = &p2p->channels; 5107a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt } else if (p2p_peer_channels_check(p2p, &p2p->channels, dev, 5117a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt msg.channel_list, 5127a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt msg.channel_list_len) < 0) { 513b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No common channels found"); 5147a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p_parse_free(&msg); 5157a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt return; 5167a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt } else { 5177a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt p2p_channels_intersect(&p2p->channels, &dev->channels, 5187a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt &intersection); 5197a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt channels = &intersection; 5207a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt } 5217a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt 522e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (p2p->cfg->invitation_result) { 52315907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt int peer_oper_freq = 0; 524e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt int freq = p2p_channel_to_freq(p2p->op_reg_class, 525e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt p2p->op_channel); 526e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (freq < 0) 527e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt freq = 0; 52815907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt 52915907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt if (msg.operating_channel) { 53015907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt peer_oper_freq = p2p_channel_to_freq( 53115907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt msg.operating_channel[3], 53215907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt msg.operating_channel[4]); 53315907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt if (peer_oper_freq < 0) 53415907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt peer_oper_freq = 0; 53515907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt } 53615907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->invitation_result(p2p->cfg->cb_ctx, *msg.status, 538e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt msg.group_bssid, channels, sa, 53915907098d1f67c24bb000e593e279af173cf57d7Dmitry Shmidt freq, peer_oper_freq); 540e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt } 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_parse_free(&msg); 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_clear_timeout(p2p); 5458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_IDLE); 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_peer = NULL; 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev, 551cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt const u8 *go_dev_addr, int dev_pw_id) 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *req; 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int freq; 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt freq = dev->listen_freq > 0 ? dev->listen_freq : dev->oper_freq; 557cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (freq <= 0) 558cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt freq = dev->oob_go_neg_freq; 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (freq <= 0) { 560b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No Listen/Operating frequency known for the peer " 561b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt MACSTR " to send Invitation Request", 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(dev->info.p2p_device_addr)); 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 566cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt req = p2p_build_invitation_req(p2p, dev, go_dev_addr, dev_pw_id); 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (req == NULL) 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 56904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (p2p->state != P2P_IDLE) 57004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt p2p_stop_listen_for_freq(p2p, freq); 571b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Sending Invitation Request"); 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_INVITE); 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->pending_action_state = P2P_PENDING_INVITATION_REQUEST; 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_peer = dev; 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev->invitation_reqs++; 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_send_action(p2p, freq, dev->info.p2p_device_addr, 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->dev_addr, dev->info.p2p_device_addr, 5789657139ca0bbea9a84e0a3c7e9438d1f53c9ed24Dmitry Shmidt wpabuf_head(req), wpabuf_len(req), 500) < 0) { 579b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Failed to send Action frame"); 5808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Use P2P find to recover and retry */ 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_timeout(p2p, 0, 0); 5823c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt } else { 5833c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt dev->flags |= P2P_DEV_WAIT_INV_REQ_ACK; 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(req); 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_invitation_req_cb(struct p2p_data *p2p, int success) 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 594b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Request TX callback: success=%d", success); 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->invite_peer == NULL) { 597b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "No pending Invite"); 5988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6013c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt if (success) 6023c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt p2p->invite_peer->flags &= ~P2P_DEV_WAIT_INV_REQ_ACK; 6033c4793790bf06f1fe08a2ddf604c9caa855151f1Dmitry Shmidt 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Use P2P find, if needed, to find the other device from its listen 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * channel. 6078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_set_state(p2p, P2P_INVITE); 6099657139ca0bbea9a84e0a3c7e9438d1f53c9ed24Dmitry Shmidt p2p_set_timeout(p2p, 0, success ? 500000 : 100000); 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_invitation_resp_cb(struct p2p_data *p2p, int success) 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 615b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation Response TX callback: success=%d", success); 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->send_action_done(p2p->cfg->cb_ctx); 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6180ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (!success) 619b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Assume Invitation Response was actually received by the peer even though Ack was not reported"); 6200ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt 6210ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (p2p->cfg->invitation_received) { 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->invitation_received(p2p->cfg->cb_ctx, 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_sa, 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_group_bssid_ptr, 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_ssid, p2p->inv_ssid_len, 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_go_dev_addr, 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_status, 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_op_freq); 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *bssid, const u8 *ssid, size_t ssid_len, 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int force_freq, const u8 *go_dev_addr, 636cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt int persistent_group, unsigned int pref_freq, int dev_pw_id) 6378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *dev; 6398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 640b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Request to invite peer " MACSTR " role=%d persistent=%d " 6418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "force_freq=%u", 6428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer), role, persistent_group, force_freq); 6438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (bssid) 644b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation for BSSID " MACSTR, MAC2STR(bssid)); 6458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (go_dev_addr) { 646b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Invitation for GO Device Address " MACSTR, 6478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(go_dev_addr)); 6488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->invite_go_dev_addr_buf, go_dev_addr, ETH_ALEN); 6498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_go_dev_addr = p2p->invite_go_dev_addr_buf; 6508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 6518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->invite_go_dev_addr = NULL; 652b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt wpa_hexdump_ascii(MSG_DEBUG, "Invitation for SSID", 6538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ssid, ssid_len); 654cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (dev_pw_id >= 0) { 655cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt p2p_dbg(p2p, "Invitation to use Device Password ID %d", 656cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt dev_pw_id); 657cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt } 658cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt p2p->invite_dev_pw_id = dev_pw_id; 6596c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->retry_invite_req = role == P2P_INVITE_ROLE_GO && 6606c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt persistent_group && !force_freq; 6616c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt p2p->retry_invite_req_sent = 0; 6628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev = p2p_get_device(p2p, peer); 664cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (dev == NULL || (dev->listen_freq <= 0 && dev->oper_freq <= 0 && 665cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt dev->oob_go_neg_freq <= 0)) { 666b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Cannot invite unknown P2P Device " MACSTR, 6678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer)); 6688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 67168d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, 67268d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt role != P2P_INVITE_ROLE_CLIENT) < 0) 6737a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt return -1; 6747a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt 6757a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt if (persistent_group && role == P2P_INVITE_ROLE_CLIENT && !force_freq && 6767a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt !pref_freq) 6777a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt dev->flags |= P2P_DEV_NO_PREF_CHAN; 6787a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt else 6797a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt dev->flags &= ~P2P_DEV_NO_PREF_CHAN; 6807a5e50a0554bee77a9da492ea3d86f46147f1671Dmitry Shmidt 6818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) { 6828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!(dev->info.dev_capab & 6838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) { 684b6e9aaf735990dc64cdb6efccc03d076768eabf3Dmitry Shmidt p2p_dbg(p2p, "Cannot invite a P2P Device " MACSTR 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " that is in a group and is not discoverable", 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer)); 6878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: use device discoverability request through GO */ 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev->invitation_reqs = 0; 6928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->state != P2P_IDLE) 6948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_stop_find(p2p); 6958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_role = role; 6978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_bssid_set = bssid != NULL; 6988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (bssid) 6998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_bssid, bssid, ETH_ALEN); 7008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(p2p->inv_ssid, ssid, ssid_len); 7018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_ssid_len = ssid_len; 7028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->inv_persistent = persistent_group; 703cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt return p2p_invite_send(p2p, dev, go_dev_addr, dev_pw_id); 7048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 705