p2p_group.c revision c5ec7f57ead87efa365800228aa0b09a12d9e6c4
18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Wi-Fi Direct - P2P group operations 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2009-2010, Atheros Communications 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 5c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * This software may be distributed under the terms of the BSD license. 6c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * See README for more details. 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "includes.h" 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common.h" 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_defs.h" 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_common.h" 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wps/wps_defs.h" 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wps/wps_i.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "p2p_i.h" 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "p2p.h" 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct p2p_group_member { 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *next; 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 addr[ETH_ALEN]; /* P2P Interface Address */ 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dev_addr[ETH_ALEN]; /* P2P Device Address */ 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *p2p_ie; 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *client_info; 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dev_capab; 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * struct p2p_group - Internal P2P module per-group data 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct p2p_group { 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_data *p2p; 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_config *cfg; 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *members; 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int num_members; 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int group_formation; 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int beacon_update; 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *noa; 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_update_ies(struct p2p_group *group); 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct p2p_group * p2p_group_init(struct p2p_data *p2p, 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_config *config) 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group *group, **groups; 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group = os_zalloc(sizeof(*group)); 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group == NULL) 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt groups = os_realloc(p2p->groups, (p2p->num_groups + 1) * 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct p2p_group *)); 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (groups == NULL) { 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(group); 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt groups[p2p->num_groups++] = group; 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->groups = groups; 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->p2p = p2p; 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg = config; 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->group_formation = 1; 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 1; 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_update_ies(group); 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->idle_update(group->cfg->cb_ctx, 1); 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return group; 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_free_member(struct p2p_group_member *m) 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(m->p2p_ie); 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(m->client_info); 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(m); 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_free_members(struct p2p_group *group) 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m, *prev; 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m = group->members; 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->members = NULL; 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->num_members = 0; 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (m) { 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt prev = m; 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m = m->next; 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_free_member(prev); 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_group_deinit(struct p2p_group *group) 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t g; 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_data *p2p; 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group == NULL) 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p = group->p2p; 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (g = 0; g < p2p->num_groups; g++) { 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->groups[g] == group) { 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (g + 1 < p2p->num_groups) { 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->groups[g] = p2p->groups[g + 1]; 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt g++; 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->num_groups--; 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_free_members(group); 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(group->cfg); 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(group->noa); 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(group); 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_client_info(struct wpabuf *ie, struct p2p_group_member *m) 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m->client_info == NULL) 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpabuf_tailroom(ie) < wpabuf_len(m->client_info) + 1) 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_buf(ie, m->client_info); 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_add_common_ies(struct p2p_group *group, 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *ie) 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dev_capab = 0, group_capab = 0; 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Capability */ 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY; 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE; 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER; 1441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (group->cfg->persistent_group) { 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_PERSISTENT_GROUP; 1461f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (group->cfg->persistent_group == 2) 1471f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt group_capab |= P2P_GROUP_CAPAB_PERSISTENT_RECONN; 1481f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->p2p->cfg->p2p_intra_bss) 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_INTRA_BSS_DIST; 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->group_formation) 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_GROUP_FORMATION; 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->p2p->cross_connect) 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_CROSS_CONN; 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->num_members >= group->cfg->max_clients) 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_capab |= P2P_GROUP_CAPAB_GROUP_LIMIT; 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_capability(ie, dev_capab, group_capab); 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_add_noa(struct wpabuf *ie, struct wpabuf *noa) 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (noa == NULL) 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Notice of Absence */ 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(ie, P2P_ATTR_NOTICE_OF_ABSENCE); 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(ie, wpabuf_len(noa)); 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_buf(ie, noa); 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_group_build_beacon_ie(struct p2p_group *group) 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *ie; 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie = wpabuf_alloc(257); 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ie == NULL) 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = p2p_buf_add_ie_hdr(ie); 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_add_common_ies(group, ie); 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_device_id(ie, group->p2p->cfg->dev_addr); 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_add_noa(ie, group->noa); 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(ie, len); 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ie; 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_group_build_probe_resp_ie(struct p2p_group *group) 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *group_info; 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *ie; 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie = wpabuf_alloc(257); 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ie == NULL) 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = p2p_buf_add_ie_hdr(ie); 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_add_common_ies(group, ie); 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_add_noa(ie, group->noa); 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Device Info */ 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_device_info(ie, group->p2p, NULL); 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Group Info */ 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_info = wpabuf_put(ie, 0); 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(ie, P2P_ATTR_GROUP_INFO); 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(ie, 0); /* Length to be filled */ 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (m = group->members; m; m = m->next) 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_client_info(ie, m); 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(group_info + 1, 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) wpabuf_put(ie, 0) - group_info - 3); 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(ie, len); 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ie; 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_group_update_ies(struct p2p_group *group) 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *beacon_ie; 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *probe_resp_ie; 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt probe_resp_ie = p2p_group_build_probe_resp_ie(group); 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (probe_resp_ie == NULL) 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_buf(MSG_MSGDUMP, "P2P: Update GO Probe Response P2P IE", 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt probe_resp_ie); 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->beacon_update) { 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt beacon_ie = p2p_group_build_beacon_ie(group); 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (beacon_ie) 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 0; 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_buf(MSG_MSGDUMP, "P2P: Update GO Beacon P2P IE", 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt beacon_ie); 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt beacon_ie = NULL; 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->ie_update(group->cfg->cb_ctx, beacon_ie, probe_resp_ie); 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * p2p_build_client_info - Build P2P Client Info Descriptor 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @addr: MAC address of the peer device 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @p2p_ie: P2P IE from (Re)Association Request 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dev_capab: Buffer for returning Device Capability 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dev_addr: Buffer for returning P2P Device Address 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: P2P Client Info Descriptor or %NULL on failure 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function builds P2P Client Info Descriptor based on the information 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * available from (Re)Association Request frame. Group owner can use this to 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * build the P2P Group Info attribute for Probe Response frames. 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_build_client_info(const u8 *addr, 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *p2p_ie, 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *dev_capab, u8 *dev_addr) 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spos; 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_message msg; 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len_pos; 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf; 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_ie == NULL) 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&msg, 0, sizeof(msg)); 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_parse_p2p_ie(p2p_ie, &msg) || 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.capability == NULL || msg.p2p_device_info == NULL) 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = wpabuf_alloc(ETH_ALEN + 1 + 1 + msg.p2p_device_info_len); 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *dev_capab = msg.capability[0]; 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN); 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt spos = msg.p2p_device_info; /* P2P Device address */ 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Client Info Descriptor */ 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Length to be set */ 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len_pos = wpabuf_put(buf, 1); 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Device address */ 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, spos, ETH_ALEN); 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Interface address */ 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, addr, ETH_ALEN); 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Device Capability Bitmap */ 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, msg.capability[0]); 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Config Methods, Primary Device Type, Number of Secondary Device 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Types, Secondary Device Type List, Device Name copied from 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Device Info 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, spos + ETH_ALEN, 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg.p2p_device_info_len - ETH_ALEN); 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len_pos = wpabuf_len(buf) - 1; 3048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return buf; 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3101f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int p2p_group_remove_member(struct p2p_group *group, const u8 *addr) 3111f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 3121f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct p2p_group_member *m, *prev; 3131f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3141f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (group == NULL) 3151f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 0; 3161f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3171f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt m = group->members; 3181f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt prev = NULL; 3191f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt while (m) { 3201f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(m->addr, addr, ETH_ALEN) == 0) 3211f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt break; 3221f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt prev = m; 3231f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt m = m->next; 3241f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 3251f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (m == NULL) 3271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 0; 3281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3291f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (prev) 3301f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt prev->next = m->next; 3311f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt else 3321f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt group->members = m->next; 3331f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt p2p_group_free_member(m); 3341f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt group->num_members--; 3351f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 1; 3371f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 3381f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3391f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_group_notif_assoc(struct p2p_group *group, const u8 *addr, 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ie, size_t len) 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group == NULL) 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m = os_zalloc(sizeof(*m)); 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m == NULL) 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(m->addr, addr, ETH_ALEN); 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m->p2p_ie = ieee802_11_vendor_ie_concat(ie, len, P2P_IE_VENDOR_TYPE); 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m->p2p_ie) { 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m->client_info = p2p_build_client_info(addr, m->p2p_ie, 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &m->dev_capab, 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m->dev_addr); 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3591f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt p2p_group_remove_member(group, addr); 3601f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m->next = group->members; 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->members = m; 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->num_members++; 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(group->p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Add client " MACSTR 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " to group (p2p=%d client_info=%d); num_members=%u/%u", 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(addr), m->p2p_ie ? 1 : 0, m->client_info ? 1 : 0, 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->num_members, group->cfg->max_clients); 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->num_members == group->cfg->max_clients) 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 1; 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_update_ies(group); 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->num_members == 1) 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->idle_update(group->cfg->cb_ctx, 0); 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpabuf * p2p_group_assoc_resp_ie(struct p2p_group *group, u8 status) 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *resp; 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rlen; 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * (Re)Association Response - P2P IE 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Status attribute (shall be present when association request is 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * denied) 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Extended Listen Timing (may be present) 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp = wpabuf_alloc(20); 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (resp == NULL) 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rlen = p2p_buf_add_ie_hdr(resp); 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status != P2P_SC_SUCCESS) 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_status(resp, status); 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(resp, rlen); 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return resp; 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_group_notif_disassoc(struct p2p_group *group, const u8 *addr) 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (p2p_group_remove_member(group, addr)) { 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(group->p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Remove " 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "client " MACSTR " from group; num_members=%u/%u", 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(addr), group->num_members, 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->max_clients); 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->num_members == group->cfg->max_clients - 1) 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 1; 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_update_ies(group); 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->num_members == 0) 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->idle_update(group->cfg->cb_ctx, 1); 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * p2p_match_dev_type_member - Match client device type with requested type 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @m: Group member 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs) 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 1 on match, 0 on mismatch 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function can be used to match the Requested Device Type attribute in 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * WPS IE with the device types of a group member for deciding whether a GO 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * should reply to a Probe Request frame. 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int p2p_match_dev_type_member(struct p2p_group_member *m, 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *wps) 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos, *end; 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wps_parse_attr attr; 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 num_sec; 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m->client_info == NULL || wps == NULL) 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpabuf_head(m->client_info); 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end = pos + wpabuf_len(m->client_info); 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 1 + 2 * ETH_ALEN + 1 + 2; 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < WPS_DEV_TYPE_LEN + 1) 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wps_parse_msg(wps, &attr)) 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* assume no Requested Device Type attributes */ 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr.num_req_dev_type == 0) 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* no Requested Device Type attributes -> match */ 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev_type_list_match(pos, attr.req_dev_type, attr.num_req_dev_type)) 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* Match with client Primary Device Type */ 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += WPS_DEV_TYPE_LEN; 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt num_sec = *pos++; 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < num_sec * WPS_DEV_TYPE_LEN) 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (num_sec > 0) { 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt num_sec--; 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (dev_type_list_match(pos, attr.req_dev_type, 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt attr.num_req_dev_type)) 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* Match with client Secondary Device Type */ 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += WPS_DEV_TYPE_LEN; 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* No matching device type found */ 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_group_match_dev_type(struct p2p_group *group, struct wpabuf *wps) 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_match_dev_type(group->p2p, wps)) 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* Match with own device type */ 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (m = group->members; m; m = m->next) { 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p_match_dev_type_member(m, wps)) 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; /* Match with group client device type */ 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* No match with Requested Device Type */ 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 487c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidtint p2p_group_match_dev_id(struct p2p_group *group, struct wpabuf *p2p) 488c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt{ 489c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt struct p2p_group_member *m; 490c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt struct p2p_message msg; 491c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 492c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt os_memset(&msg, 0, sizeof(msg)); 493c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt if (p2p_parse_p2p_ie(p2p, &msg)) 494c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt return 1; /* Failed to parse - assume no filter on Device ID */ 495c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 496c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt if (!msg.device_id) 497c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt return 1; /* No filter on Device ID */ 498c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 499c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt if (os_memcmp(msg.device_id, group->p2p->cfg->dev_addr, ETH_ALEN) == 0) 500c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt return 1; /* Match with our P2P Device Address */ 501c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 502c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt for (m = group->members; m; m = m->next) { 503c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt if (os_memcmp(msg.device_id, m->dev_addr, ETH_ALEN) == 0) 504c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt return 1; /* Match with group client P2P Device Address */ 505c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt } 506c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 507c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt /* No match with Device ID */ 508c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt return 0; 509c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt} 510c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 511c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_group_notif_formation_done(struct p2p_group *group) 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group == NULL) 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->group_formation = 0; 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 1; 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_update_ies(group); 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_group_notif_noa(struct p2p_group *group, const u8 *noa, 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t noa_len) 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (noa == NULL) { 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(group->noa); 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->noa = NULL; 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->noa) { 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpabuf_size(group->noa) >= noa_len) { 531fc41cadcff448cdd2b60e376fc6e7378e2e57b5eDmitry Shmidt group->noa->used = 0; 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(group->noa, noa, noa_len); 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(group->noa); 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->noa = NULL; 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!group->noa) { 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->noa = wpabuf_alloc_copy(noa, noa_len); 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->noa == NULL) 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->beacon_update = 1; 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_group_update_ies(group); 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct p2p_group_member * p2p_group_get_client(struct p2p_group *group, 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *dev_id) 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (m = group->members; m; m = m->next) { 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(dev_id, m->dev_addr, ETH_ALEN) == 0) 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return m; 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct p2p_group_member * p2p_group_get_client_iface( 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group *group, const u8 *interface_addr) 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (m = group->members; m; m = m->next) { 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(interface_addr, m->addr, ETH_ALEN) == 0) 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return m; 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5791f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 5801f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtconst u8 * p2p_group_get_dev_addr(struct p2p_group *group, const u8 *addr) 581dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt{ 582dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt struct p2p_group_member *m; 583dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt 5841f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (group == NULL) 5851f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return NULL; 586dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt m = p2p_group_get_client_iface(group, addr); 5871f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (m && !is_zero_ether_addr(m->dev_addr)) 588dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt return m->dev_addr; 5891f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return NULL; 590dca3979ccdf869f140f096b83df322a0efc84f22Dmitry Shmidt} 5911f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * p2p_build_go_disc_req(void) 5948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf; 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = wpabuf_alloc(100); 5988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_action_hdr(buf, P2P_GO_DISC_REQ, 0); 6028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return buf; 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint p2p_group_go_discover(struct p2p_group *group, const u8 *dev_id, 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *searching_dev, int rx_freq) 6098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *req; 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_data *p2p = group->p2p; 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int freq; 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m = p2p_group_get_client(group, dev_id); 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m == NULL || m->client_info == NULL) { 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: Requested client was not in this " 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "group " MACSTR, 6198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(group->cfg->interface_addr)); 6208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!(m->dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) { 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: Requested client does not support " 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "client discoverability"); 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: Schedule GO Discoverability Request to be " 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "sent to " MACSTR, MAC2STR(dev_id)); 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req = p2p_build_go_disc_req(); 6338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (req == NULL) 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: Should really use group operating frequency here */ 6378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt freq = rx_freq; 6388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->pending_action_state = P2P_PENDING_GO_DISC_REQ; 6408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, m->addr, 6418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->interface_addr, 6428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->cfg->interface_addr, 6438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_head(req), wpabuf_len(req), 200) < 0) 6448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt { 6458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 6468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "P2P: Failed to send Action frame"); 6478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(req); 6508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 6528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtconst u8 * p2p_group_get_interface_addr(struct p2p_group *group) 6568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return group->cfg->interface_addr; 6588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtu8 p2p_group_presence_req(struct p2p_group *group, 6628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *client_interface_addr, 6638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *noa, size_t noa_len) 6648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *m; 6668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 curr_noa[50]; 6678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int curr_noa_len; 6688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt m = p2p_group_get_client_iface(group, client_interface_addr); 6708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (m == NULL || m->client_info == NULL) { 6718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: Client was not in this group"); 6728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE; 6738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "P2P: Presence Request NoA", noa, noa_len); 6768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group->p2p->cfg->get_noa) 6788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt curr_noa_len = group->p2p->cfg->get_noa( 6798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group->p2p->cfg->cb_ctx, group->cfg->interface_addr, 6808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt curr_noa, sizeof(curr_noa)); 6818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 6828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt curr_noa_len = -1; 6838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (curr_noa_len < 0) 6848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: Failed to fetch current NoA"); 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else if (curr_noa_len == 0) 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: No NoA being advertized"); 6878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 6888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "P2P: Current NoA", curr_noa, 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt curr_noa_len); 6901f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: properly process request and store copy */ 6921f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (curr_noa_len > 0 || curr_noa_len == -1) 6938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE; 6941f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 6958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return P2P_SC_SUCCESS; 6968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtunsigned int p2p_get_group_num_members(struct p2p_group *group) 7008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return group->num_members; 7028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtconst u8 * p2p_iterate_group_members(struct p2p_group *group, void **next) 7068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_group_member *iter = *next; 7088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!iter) 7108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt iter = group->members; 7118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 7128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt iter = iter->next; 7138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *next = iter; 7158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!iter) 7178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 7188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return iter->addr; 7208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 721c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 722c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 723c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidtint p2p_group_is_client_connected(struct p2p_group *group, const u8 *dev_addr) 724c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt{ 725c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt struct p2p_group_member *m; 726c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 727c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt for (m = group->members; m; m = m->next) { 728c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt if (os_memcmp(m->dev_addr, dev_addr, ETH_ALEN) == 0) 729c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt return 1; 730c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt } 731c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 732c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt return 0; 733c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt} 734