p2p_group.c revision 1f69aa52ea2e0a73ac502565df8c666ee49cab6a
18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Wi-Fi Direct - P2P group operations 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2009-2010, Atheros Communications 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 58d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This program is free software; you can redistribute it and/or modify 68d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * it under the terms of the GNU General Public License version 2 as 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * published by the Free Software Foundation. 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Alternatively, this software may be distributed under the terms of BSD 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * license. 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * See README and COPYING for more details. 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "includes.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common.h" 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_defs.h" 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_common.h" 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wps/wps_defs.h" 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wps/wps_i.h" 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "p2p_i.h" 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "p2p.h" 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct p2p_group_member { 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *next; 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 addr[ETH_ALEN]; /* P2P Interface Address */ 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dev_addr[ETH_ALEN]; /* P2P Device Address */ 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *p2p_ie; 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *client_info; 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dev_capab; 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * struct p2p_group - Internal P2P module per-group data 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct p2p_group { 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_data *p2p; 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_config *cfg; 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *members; 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int num_members; 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int group_formation; 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int beacon_update; 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *noa; 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_update_ies(struct p2p_group *group); 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct p2p_group * p2p_group_init(struct p2p_data *p2p, 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_config *config) 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group *group, **groups; 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group = os_zalloc(sizeof(*group)); 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group == NULL) 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt groups = os_realloc(p2p->groups, (p2p->num_groups + 1) * 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct p2p_group *)); 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (groups == NULL) { 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(group); 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt groups[p2p->num_groups++] = group; 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->groups = groups; 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->p2p = p2p; 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg = config; 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->group_formation = 1; 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 1; 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_update_ies(group); 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->idle_update(group->cfg->cb_ctx, 1); 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return group; 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_free_member(struct p2p_group_member *m) 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(m->p2p_ie); 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(m->client_info); 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(m); 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_free_members(struct p2p_group *group) 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m, *prev; 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m = group->members; 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->members = NULL; 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->num_members = 0; 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (m) { 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt prev = m; 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m = m->next; 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_free_member(prev); 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_group_deinit(struct p2p_group *group) 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t g; 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_data *p2p; 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group == NULL) 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p = group->p2p; 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (g = 0; g < p2p->num_groups; g++) { 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->groups[g] == group) { 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (g + 1 < p2p->num_groups) { 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->groups[g] = p2p->groups[g + 1]; 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt g++; 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->num_groups--; 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_free_members(group); 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(group->cfg); 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(group->noa); 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(group); 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_client_info(struct wpabuf *ie, struct p2p_group_member *m) 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m->client_info == NULL) 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpabuf_tailroom(ie) < wpabuf_len(m->client_info) + 1) 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_buf(ie, m->client_info); 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_add_common_ies(struct p2p_group *group, 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *ie) 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dev_capab = 0, group_capab = 0; 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Capability */ 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY; 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE; 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER; 1501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (group->cfg->persistent_group) { 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_PERSISTENT_GROUP; 1521f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (group->cfg->persistent_group == 2) 1531f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt group_capab |= P2P_GROUP_CAPAB_PERSISTENT_RECONN; 1541f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->p2p->cfg->p2p_intra_bss) 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_INTRA_BSS_DIST; 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->group_formation) 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_GROUP_FORMATION; 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->p2p->cross_connect) 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_CROSS_CONN; 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->num_members >= group->cfg->max_clients) 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_GROUP_LIMIT; 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_capability(ie, dev_capab, group_capab); 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_add_noa(struct wpabuf *ie, struct wpabuf *noa) 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (noa == NULL) 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Notice of Absence */ 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(ie, P2P_ATTR_NOTICE_OF_ABSENCE); 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(ie, wpabuf_len(noa)); 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_buf(ie, noa); 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_group_build_beacon_ie(struct p2p_group *group) 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *ie; 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie = wpabuf_alloc(257); 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ie == NULL) 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = p2p_buf_add_ie_hdr(ie); 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_add_common_ies(group, ie); 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_device_id(ie, group->p2p->cfg->dev_addr); 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_add_noa(ie, group->noa); 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(ie, len); 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ie; 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_group_build_probe_resp_ie(struct p2p_group *group) 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *group_info; 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *ie; 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie = wpabuf_alloc(257); 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ie == NULL) 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = p2p_buf_add_ie_hdr(ie); 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_add_common_ies(group, ie); 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_add_noa(ie, group->noa); 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Device Info */ 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_device_info(ie, group->p2p, NULL); 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Group Info */ 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_info = wpabuf_put(ie, 0); 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(ie, P2P_ATTR_GROUP_INFO); 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(ie, 0); /* Length to be filled */ 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (m = group->members; m; m = m->next) 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_client_info(ie, m); 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(group_info + 1, 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) wpabuf_put(ie, 0) - group_info - 3); 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(ie, len); 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ie; 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_update_ies(struct p2p_group *group) 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *beacon_ie; 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *probe_resp_ie; 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt probe_resp_ie = p2p_group_build_probe_resp_ie(group); 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (probe_resp_ie == NULL) 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_buf(MSG_MSGDUMP, "P2P: Update GO Probe Response P2P IE", 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt probe_resp_ie); 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->beacon_update) { 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt beacon_ie = p2p_group_build_beacon_ie(group); 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (beacon_ie) 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 0; 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_buf(MSG_MSGDUMP, "P2P: Update GO Beacon P2P IE", 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt beacon_ie); 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt beacon_ie = NULL; 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->ie_update(group->cfg->cb_ctx, beacon_ie, probe_resp_ie); 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * p2p_build_client_info - Build P2P Client Info Descriptor 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @addr: MAC address of the peer device 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @p2p_ie: P2P IE from (Re)Association Request 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dev_capab: Buffer for returning Device Capability 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dev_addr: Buffer for returning P2P Device Address 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: P2P Client Info Descriptor or %NULL on failure 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function builds P2P Client Info Descriptor based on the information 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * available from (Re)Association Request frame. Group owner can use this to 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * build the P2P Group Info attribute for Probe Response frames. 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_build_client_info(const u8 *addr, 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *p2p_ie, 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *dev_capab, u8 *dev_addr) 2698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spos; 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_message msg; 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len_pos; 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf; 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_ie == NULL) 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&msg, 0, sizeof(msg)); 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_parse_p2p_ie(p2p_ie, &msg) || 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.capability == NULL || msg.p2p_device_info == NULL) 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = wpabuf_alloc(ETH_ALEN + 1 + 1 + msg.p2p_device_info_len); 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *dev_capab = msg.capability[0]; 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN); 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt spos = msg.p2p_device_info; /* P2P Device address */ 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Client Info Descriptor */ 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Length to be set */ 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len_pos = wpabuf_put(buf, 1); 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Device address */ 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, spos, ETH_ALEN); 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Interface address */ 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, addr, ETH_ALEN); 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Device Capability Bitmap */ 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, msg.capability[0]); 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Config Methods, Primary Device Type, Number of Secondary Device 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Types, Secondary Device Type List, Device Name copied from 3048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Device Info 3058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, spos + ETH_ALEN, 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.p2p_device_info_len - ETH_ALEN); 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len_pos = wpabuf_len(buf) - 1; 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return buf; 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3161f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int p2p_group_remove_member(struct p2p_group *group, const u8 *addr) 3171f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 3181f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct p2p_group_member *m, *prev; 3191f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3201f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (group == NULL) 3211f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 0; 3221f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3231f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt m = group->members; 3241f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt prev = NULL; 3251f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt while (m) { 3261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(m->addr, addr, ETH_ALEN) == 0) 3271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt break; 3281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt prev = m; 3291f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt m = m->next; 3301f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 3311f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3321f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (m == NULL) 3331f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 0; 3341f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3351f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (prev) 3361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt prev->next = m->next; 3371f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt else 3381f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt group->members = m->next; 3391f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt p2p_group_free_member(m); 3401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt group->num_members--; 3411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 1; 3431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 3441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3451f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr, 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ie, size_t len) 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group == NULL) 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m = os_zalloc(sizeof(*m)); 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m == NULL) 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(m->addr, addr, ETH_ALEN); 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m->p2p_ie = ieee802_11_vendor_ie_concat(ie, len, P2P_IE_VENDOR_TYPE); 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m->p2p_ie) { 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m->client_info = p2p_build_client_info(addr, m->p2p_ie, 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &m->dev_capab, 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m->dev_addr); 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3651f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt p2p_group_remove_member(group, addr); 3661f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m->next = group->members; 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->members = m; 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->num_members++; 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(group->p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Add client " MACSTR 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " to group (p2p=%d client_info=%d); num_members=%u/%u", 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(addr), m->p2p_ie ? 1 : 0, m->client_info ? 1 : 0, 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->num_members, group->cfg->max_clients); 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->num_members == group->cfg->max_clients) 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 1; 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_update_ies(group); 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->num_members == 1) 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->idle_update(group->cfg->cb_ctx, 0); 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status) 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *resp; 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rlen; 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * (Re)Association Response - P2P IE 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Status attribute (shall be present when association request is 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * denied) 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Extended Listen Timing (may be present) 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp = wpabuf_alloc(20); 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (resp == NULL) 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rlen = p2p_buf_add_ie_hdr(resp); 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status != P2P_SC_SUCCESS) 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_status(resp, status); 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(resp, rlen); 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return resp; 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr) 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (p2p_group_remove_member(group, addr)) { 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(group->p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Remove " 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "client " MACSTR " from group; num_members=%u/%u", 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(addr), group->num_members, 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->max_clients); 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->num_members == group->cfg->max_clients - 1) 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 1; 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_update_ies(group); 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->num_members == 0) 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->idle_update(group->cfg->cb_ctx, 1); 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * p2p_match_dev_type_member - Match client device type with requested type 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @m: Group member 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 1 on match, 0 on mismatch 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function can be used to match the Requested Device Type attribute in 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * WPS IE with the device types of a group member for deciding whether a GO 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * should reply to a Probe Request frame. 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int p2p_match_dev_type_member(struct p2p_group_member *m, 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *wps) 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos, *end; 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wps_parse_attr attr; 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 num_sec; 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m->client_info == NULL || wps == NULL) 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpabuf_head(m->client_info); 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end = pos + wpabuf_len(m->client_info); 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 1 + 2 * ETH_ALEN + 1 + 2; 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < WPS_DEV_TYPE_LEN + 1) 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wps_parse_msg(wps, &attr)) 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* assume no Requested Device Type attributes */ 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr.num_req_dev_type == 0) 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* no Requested Device Type attributes -> match */ 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev_type_list_match(pos, attr.req_dev_type, attr.num_req_dev_type)) 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* Match with client Primary Device Type */ 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += WPS_DEV_TYPE_LEN; 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt num_sec = *pos++; 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < num_sec * WPS_DEV_TYPE_LEN) 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (num_sec > 0) { 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt num_sec--; 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev_type_list_match(pos, attr.req_dev_type, 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt attr.num_req_dev_type)) 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* Match with client Secondary Device Type */ 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += WPS_DEV_TYPE_LEN; 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* No matching device type found */ 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps) 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_match_dev_type(group->p2p, wps)) 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* Match with own device type */ 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (m = group->members; m; m = m->next) { 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_match_dev_type_member(m, wps)) 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* Match with group client device type */ 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* No match with Requested Device Type */ 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_group_notif_formation_done(struct p2p_group *group) 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group == NULL) 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->group_formation = 0; 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 1; 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_update_ies(group); 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_group_notif_noa(struct p2p_group *group, const u8 *noa, 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t noa_len) 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (noa == NULL) { 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(group->noa); 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->noa = NULL; 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->noa) { 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpabuf_size(group->noa) >= noa_len) { 512fc41cadcff448cdd2b60e376fc6e7378e2e57b5eDmitry Shmidt group->noa->used = 0; 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(group->noa, noa, noa_len); 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(group->noa); 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->noa = NULL; 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!group->noa) { 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->noa = wpabuf_alloc_copy(noa, noa_len); 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->noa == NULL) 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 1; 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_update_ies(group); 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct p2p_group_member * p2p_group_get_client(struct p2p_group *group, 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *dev_id) 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (m = group->members; m; m = m->next) { 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(dev_id, m->dev_addr, ETH_ALEN) == 0) 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return m; 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct p2p_group_member * p2p_group_get_client_iface( 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group *group, const u8 *interface_addr) 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (m = group->members; m; m = m->next) { 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(interface_addr, m->addr, ETH_ALEN) == 0) 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return m; 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5601f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 5611f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtconst u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr) 562dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt{ 563dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt struct p2p_group_member *m; 564dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt 5651f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (group == NULL) 5661f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return NULL; 567dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt m = p2p_group_get_client_iface(group, addr); 5681f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (m && !is_zero_ether_addr(m->dev_addr)) 569dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt return m->dev_addr; 5701f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return NULL; 571dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt} 5721f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_build_go_disc_req(void) 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf; 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = wpabuf_alloc(100); 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 5808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_action_hdr(buf, P2P_GO_DISC_REQ, 0); 5838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return buf; 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id, 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *searching_dev, int rx_freq) 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *req; 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_data *p2p = group->p2p; 5948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int freq; 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m = p2p_group_get_client(group, dev_id); 5978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m == NULL || m->client_info == NULL) { 5988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: Requested client was not in this " 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "group " MACSTR, 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(group->cfg->interface_addr)); 6018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!(m->dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) { 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: Requested client does not support " 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "client discoverability"); 6078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: Schedule GO Discoverability Request to be " 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "sent to " MACSTR, MAC2STR(dev_id)); 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req = p2p_build_go_disc_req(); 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (req == NULL) 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: Should really use group operating frequency here */ 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt freq = rx_freq; 6198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->pending_action_state = P2P_PENDING_GO_DISC_REQ; 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, m->addr, 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->interface_addr, 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->interface_addr, 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_head(req), wpabuf_len(req), 200) < 0) 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt { 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Failed to send Action frame"); 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(req); 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 6338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtconst u8 * p2p_group_get_interface_addr(struct p2p_group *group) 6378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return group->cfg->interface_addr; 6398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtu8 p2p_group_presence_req(struct p2p_group *group, 6438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *client_interface_addr, 6448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *noa, size_t noa_len) 6458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 6478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 curr_noa[50]; 6488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int curr_noa_len; 6498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m = p2p_group_get_client_iface(group, client_interface_addr); 6518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m == NULL || m->client_info == NULL) { 6528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: Client was not in this group"); 6538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE; 6548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "P2P: Presence Request NoA", noa, noa_len); 6578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->p2p->cfg->get_noa) 6598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt curr_noa_len = group->p2p->cfg->get_noa( 6608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->p2p->cfg->cb_ctx, group->cfg->interface_addr, 6618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt curr_noa, sizeof(curr_noa)); 6628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 6638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt curr_noa_len = -1; 6648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (curr_noa_len < 0) 6658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: Failed to fetch current NoA"); 6668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else if (curr_noa_len == 0) 6678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: No NoA being advertized"); 6688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "P2P: Current NoA", curr_noa, 6708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt curr_noa_len); 6711f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 6728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: properly process request and store copy */ 6731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (curr_noa_len > 0 || curr_noa_len == -1) 6748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE; 6751f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 6768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return P2P_SC_SUCCESS; 6778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtunsigned int p2p_get_group_num_members(struct p2p_group *group) 6818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return group->num_members; 6838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtconst u8 * p2p_iterate_group_members(struct p2p_group *group, void **next) 6878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *iter = *next; 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!iter) 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt iter = group->members; 6928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 6938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt iter = iter->next; 6948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *next = iter; 6968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!iter) 6988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 6998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return iter->addr; 7018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 702