18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * P2P - IE builder 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 "wps/wps_i.h" 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "p2p_i.h" 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token) 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, WLAN_ACTION_VENDOR_SPECIFIC); 20a38abf9af7bec7e89dbfb39ac7bb77223fe47c72Dmitry Shmidt wpabuf_put_be32(buf, P2P_IE_VENDOR_TYPE); 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, subtype); /* OUI Subtype */ 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, dialog_token); 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Dialog Token: %d", dialog_token); 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype, 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dialog_token) 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, WLAN_ACTION_PUBLIC); 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, WLAN_PA_VENDOR_SPECIFIC); 33a38abf9af7bec7e89dbfb39ac7bb77223fe47c72Dmitry Shmidt wpabuf_put_be32(buf, P2P_IE_VENDOR_TYPE); 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, subtype); /* OUI Subtype */ 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, dialog_token); 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Dialog Token: %d", dialog_token); 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtu8 * p2p_buf_add_ie_hdr(struct wpabuf *buf) 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P IE header */ 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC); 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = wpabuf_put(buf, 1); /* IE length to be filled */ 48a38abf9af7bec7e89dbfb39ac7bb77223fe47c72Dmitry Shmidt wpabuf_put_be32(buf, P2P_IE_VENDOR_TYPE); 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * P2P IE header"); 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return len; 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len) 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Update P2P IE Length */ 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = (u8 *) wpabuf_put(buf, 0) - len - 1; 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab) 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Capability */ 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_CAPABILITY); 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, 2); 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, dev_capab); /* Device Capabilities */ 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, group_capab); /* Group Capabilities */ 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Capability dev=%02x group=%02x", 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dev_capab, group_capab); 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent) 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Group Owner Intent */ 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_GROUP_OWNER_INTENT); 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, 1); 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, go_intent); 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * GO Intent: Intent %u Tie breaker %u", 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt go_intent >> 1, go_intent & 0x01); 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country, 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 reg_class, u8 channel) 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Listen Channel */ 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_LISTEN_CHANNEL); 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, 5); 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, country, 3); 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, reg_class); /* Regulatory Class */ 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, channel); /* Channel Number */ 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Listen Channel: Regulatory Class %u " 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Channel %u", reg_class, channel); 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country, 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 reg_class, u8 channel) 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Operating Channel */ 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_OPERATING_CHANNEL); 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, 5); 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, country, 3); 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, reg_class); /* Regulatory Class */ 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, channel); /* Channel Number */ 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Operating Channel: Regulatory Class %u " 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Channel %u", reg_class, channel); 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_channel_list(struct wpabuf *buf, const char *country, 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_channels *chan) 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t i; 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Channel List */ 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_CHANNEL_LIST); 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = wpabuf_put(buf, 2); /* IE length to be filled */ 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, country, 3); /* Country String */ 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (i = 0; i < chan->reg_classes; i++) { 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_reg_class *c = &chan->reg_class[i]; 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, c->reg_class); 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, c->channels); 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, c->channel, c->channels); 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Update attribute length */ 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(len, (u8 *) wpabuf_put(buf, 0) - len - 2); 13291c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "P2P: * Channel List", 13391c40cdce17424d9a4718876becf0b7811cf68f2Dmitry Shmidt len + 2, (u8 *) wpabuf_put(buf, 0) - len - 2); 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 136d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_status(struct wpabuf *buf, u8 status) 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Status */ 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_STATUS); 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, 1); 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, status); 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Status: %d", status); 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p, 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_device *peer) 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 methods; 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t nlen, i; 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Device Info */ 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_DEVICE_INFO); 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = wpabuf_put(buf, 2); /* IE length to be filled */ 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Device address */ 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, p2p->cfg->dev_addr, ETH_ALEN); 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Config Methods */ 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt methods = 0; 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer && peer->wps_method != WPS_NOT_READY) { 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->wps_method == WPS_PBC) 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt methods |= WPS_CONFIG_PUSHBUTTON; 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else if (peer->wps_method == WPS_PIN_DISPLAY || 167aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt peer->wps_method == WPS_PIN_KEYPAD) { 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt methods |= WPS_CONFIG_DISPLAY | WPS_CONFIG_KEYPAD; 169aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt methods |= WPS_CONFIG_P2PS; 170aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt } 1711f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } else if (p2p->cfg->config_methods) { 1721f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt methods |= p2p->cfg->config_methods & 1731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_DISPLAY | 174aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt WPS_CONFIG_KEYPAD | WPS_CONFIG_P2PS); 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt methods |= WPS_CONFIG_PUSHBUTTON; 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt methods |= WPS_CONFIG_DISPLAY | WPS_CONFIG_KEYPAD; 178aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt methods |= WPS_CONFIG_P2PS; 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, methods); 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Primary Device Type */ 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, p2p->cfg->pri_dev_type, 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(p2p->cfg->pri_dev_type)); 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Number of Secondary Device Types */ 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, p2p->cfg->num_sec_dev_types); 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Secondary Device Type List */ 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (i = 0; i < p2p->cfg->num_sec_dev_types; i++) 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, p2p->cfg->sec_dev_type[i], 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPS_DEV_TYPE_LEN); 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Device Name */ 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nlen = p2p->cfg->dev_name ? os_strlen(p2p->cfg->dev_name) : 0; 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, ATTR_DEV_NAME); 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, nlen); 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, p2p->cfg->dev_name, nlen); 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Update attribute length */ 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(len, (u8 *) wpabuf_put(buf, 0) - len - 2); 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Device Info"); 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr) 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Device ID */ 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_DEVICE_ID); 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, ETH_ALEN); 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, dev_addr, ETH_ALEN); 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Device ID: " MACSTR, MAC2STR(dev_addr)); 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout, 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 client_timeout) 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Configuration Timeout */ 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_CONFIGURATION_TIMEOUT); 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, 2); 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, go_timeout); 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, client_timeout); 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Configuration Timeout: GO %d (*10ms) " 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "client %d (*10ms)", go_timeout, client_timeout); 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr) 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Intended P2P Interface Address */ 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_INTENDED_INTERFACE_ADDR); 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, ETH_ALEN); 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, interface_addr, ETH_ALEN); 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Intended P2P Interface Address " MACSTR, 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(interface_addr)); 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid) 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Group BSSID */ 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_GROUP_BSSID); 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, ETH_ALEN); 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, bssid, ETH_ALEN); 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * P2P Group BSSID " MACSTR, 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(bssid)); 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr, 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ssid, size_t ssid_len) 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Group ID */ 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_GROUP_ID); 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, ETH_ALEN + ssid_len); 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, dev_addr, ETH_ALEN); 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, ssid, ssid_len); 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * P2P Group ID " MACSTR, 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(dev_addr)); 2615460547a121207cf7a99eac45e05fcdd83be3161Dmitry Shmidt wpa_hexdump_ascii(MSG_DEBUG, "P2P: P2P Group ID SSID", ssid, ssid_len); 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags) 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Invitation Flags */ 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_INVITATION_FLAGS); 2698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, 1); 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, flags); 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Invitation Flags: bitmap 0x%x", flags); 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void p2p_buf_add_noa_desc(struct wpabuf *buf, struct p2p_noa_desc *desc) 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (desc == NULL) 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, desc->count_type); 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le32(buf, desc->duration); 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le32(buf, desc->interval); 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le32(buf, desc->start_time); 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow, 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2) 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Notice of Absence */ 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_NOTICE_OF_ABSENCE); 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, 2 + (desc1 ? 13 : 0) + (desc2 ? 13 : 0)); 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, noa_index); 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, (opp_ps ? 0x80 : 0) | (ctwindow & 0x7f)); 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_noa_desc(buf, desc1); 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_add_noa_desc(buf, desc2); 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Notice of Absence"); 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period, 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 interval) 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Extended Listen Timing */ 3058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_EXT_LISTEN_TIMING); 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, 4); 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, period); 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, interval); 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Extended Listen Timing (period %u msec " 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "interval %u msec)", period, interval); 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p) 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Interface */ 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_INTERFACE); 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_le16(buf, ETH_ALEN + 1 + ETH_ALEN); 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Device address */ 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, p2p->cfg->dev_addr, ETH_ALEN); 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * FIX: Fetch interface address list from driver. Do not include 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the P2P Device address if it is never used as interface address. 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* P2P Interface Address Count */ 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, 1); 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, p2p->cfg->dev_addr, ETH_ALEN); 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 331cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidtvoid p2p_buf_add_oob_go_neg_channel(struct wpabuf *buf, const char *country, 332cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt u8 oper_class, u8 channel, 333cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt enum p2p_role_indication role) 334cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt{ 335cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt /* OOB Group Owner Negotiation Channel */ 336cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_OOB_GO_NEG_CHANNEL); 337cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt wpabuf_put_le16(buf, 6); 338cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt wpabuf_put_data(buf, country, 3); 339cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt wpabuf_put_u8(buf, oper_class); /* Operating Class */ 340cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt wpabuf_put_u8(buf, channel); /* Channel Number */ 341cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt wpabuf_put_u8(buf, (u8) role); /* Role indication */ 342cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * OOB GO Negotiation Channel: Operating " 343cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt "Class %u Channel %u Role %d", 344cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt oper_class, channel, role); 345cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt} 346cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt 347cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt 348aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidtvoid p2p_buf_add_service_hash(struct wpabuf *buf, struct p2p_data *p2p) 349aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt{ 350aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt if (!p2p) 351aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt return; 352aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 353aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt /* Service Hash */ 354aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_SERVICE_HASH); 355aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_le16(buf, p2p->p2ps_seek_count * P2PS_HASH_LEN); 356a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_data(buf, p2p->p2ps_seek_hash, 357aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt p2p->p2ps_seek_count * P2PS_HASH_LEN); 358aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "P2P: * Service Hash", 359a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p->p2ps_seek_hash, p2p->p2ps_seek_count * P2PS_HASH_LEN); 360aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt} 361aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 362aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 363aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidtvoid p2p_buf_add_session_info(struct wpabuf *buf, const char *info) 364aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt{ 365aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt size_t info_len = 0; 366aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 367aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt if (info && info[0]) 368aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt info_len = os_strlen(info); 369aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 370aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt /* Session Information Data Info */ 371aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_SESSION_INFORMATION_DATA); 372aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_le16(buf, (u16) info_len); 373aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 374aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt if (info) { 375aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_data(buf, info, info_len); 376aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Session Info Data (%s)", info); 377aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt } 378aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt} 379aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 380aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 381aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidtvoid p2p_buf_add_connection_capability(struct wpabuf *buf, u8 connection_cap) 382aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt{ 383aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt /* Connection Capability Info */ 384aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_CONNECTION_CAPABILITY); 385aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_le16(buf, 1); 386aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_u8(buf, connection_cap); 387aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Connection Capability: 0x%x", 388aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt connection_cap); 389aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt} 390aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 391aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 392aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidtvoid p2p_buf_add_advertisement_id(struct wpabuf *buf, u32 id, const u8 *mac) 393aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt{ 394aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt if (!buf || !mac) 395aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt return; 396aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 397aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt /* Advertisement ID Info */ 398aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_ADVERTISEMENT_ID); 399aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_le16(buf, (u16) (sizeof(u32) + ETH_ALEN)); 400aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_le32(buf, id); 401aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_data(buf, mac, ETH_ALEN); 402aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Advertisement ID (%x) " MACSTR, 403aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt id, MAC2STR(mac)); 404aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt} 405aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 406aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 407a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidtstatic int p2ps_wildcard_hash(struct p2p_data *p2p, 408a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt const u8 *hash, u8 hash_count) 409a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt{ 410a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt u8 i; 411a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt const u8 *test = hash; 412a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 413a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt for (i = 0; i < hash_count; i++) { 414a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (os_memcmp(test, p2p->wild_card_hash, P2PS_HASH_LEN) == 0) 415a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt return 1; 416a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt test += P2PS_HASH_LEN; 417a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt } 418a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 419a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt return 0; 420a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt} 421a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 422a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 423a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidtstatic int p2p_wfa_service_adv(struct p2p_data *p2p) 424aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt{ 425aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt struct p2ps_advertisement *adv; 426aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 427a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt for (adv = p2p->p2ps_adv_list; adv; adv = adv->next) { 428a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (os_strncmp(adv->svc_name, P2PS_WILD_HASH_STR, 429a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt os_strlen(P2PS_WILD_HASH_STR)) == 0) 430a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt return 1; 431a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt } 432aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 433a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt return 0; 434a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt} 435aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 436aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 437a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidtstatic int p2p_buf_add_service_info(struct wpabuf *buf, struct p2p_data *p2p, 438a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt u32 adv_id, u16 config_methods, 439a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt const char *svc_name, u8 **ie_len, u8 **pos, 440a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt size_t *total_len, u8 *attr_len) 441a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt{ 442a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt size_t svc_len; 443a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt size_t remaining; 444a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt size_t info_len; 445a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 446a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_dbg(p2p, "Add service info for %s (adv_id=%u)", svc_name, adv_id); 447a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt svc_len = os_strlen(svc_name); 448a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt info_len = sizeof(adv_id) + sizeof(config_methods) + sizeof(u8) + 449a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt svc_len; 450a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 451a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (info_len + *total_len > MAX_SVC_ADV_LEN) { 452a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_dbg(p2p, 453a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt "Unsufficient buffer, failed to add advertised service info"); 454a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt return -1; 455a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt } 456aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 457a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (svc_len > 255) { 458a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_dbg(p2p, 459a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt "Invalid service name length (%u bytes), failed to add advertised service info", 460a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt (unsigned int) svc_len); 461a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt return -1; 462a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt } 463aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 464a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (*ie_len) { 465a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt int ie_data_len = (*pos - *ie_len) - 1; 466aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 467a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (ie_data_len < 0 || ie_data_len > 255) { 468a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_dbg(p2p, 469a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt "Invalid IE length, failed to add advertised service info"); 470a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt return -1; 471aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt } 472a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt remaining = 255 - ie_data_len; 473a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt } else { 474a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt /* 475a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt * Adding new P2P IE header takes 6 extra bytes: 476a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt * - 2 byte IE header (1 byte IE id and 1 byte length) 477a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt * - 4 bytes of IE_VENDOR_TYPE are reduced from 255 below 478a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt */ 479a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt *ie_len = p2p_buf_add_ie_hdr(buf); 480a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt remaining = 255 - 4; 481a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt } 482aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 483a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (remaining < sizeof(u32) + sizeof(u16) + sizeof(u8)) { 484a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt /* 485a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt * Split adv_id, config_methods, and svc_name_len between two 486a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt * IEs. 487a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt */ 488a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt size_t front = remaining; 489a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt size_t back = sizeof(u32) + sizeof(u16) + sizeof(u8) - front; 490a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt u8 holder[sizeof(u32) + sizeof(u16) + sizeof(u8)]; 491aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 492a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt WPA_PUT_LE32(holder, adv_id); 493a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt WPA_PUT_BE16(&holder[sizeof(u32)], config_methods); 494a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt holder[sizeof(u32) + sizeof(u16)] = svc_len; 495aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 496a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (front) 497a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_data(buf, holder, front); 498aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 499a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_buf_update_ie_hdr(buf, *ie_len); 500a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt *ie_len = p2p_buf_add_ie_hdr(buf); 501aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 502a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_data(buf, &holder[front], back); 503a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt remaining = 255 - 4 - (sizeof(u32) + sizeof(u16) + sizeof(u8)) - 504a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt back; 505a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt } else { 506a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_le32(buf, adv_id); 507a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_be16(buf, config_methods); 508a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_u8(buf, svc_len); 509a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt remaining -= sizeof(adv_id) + sizeof(config_methods) + 510a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt sizeof(u8); 511aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt } 512aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 513a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (remaining < svc_len) { 514a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt /* split svc_name between two or three IEs */ 515a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt size_t front = remaining; 516a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt size_t back = svc_len - front; 517aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 518a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (front) 519a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_data(buf, svc_name, front); 520aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 521a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_buf_update_ie_hdr(buf, *ie_len); 522a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt *ie_len = p2p_buf_add_ie_hdr(buf); 523a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 524a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt /* In rare cases, we must split across 3 attributes */ 525a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (back > 255 - 4) { 526a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_data(buf, &svc_name[front], 255 - 4); 527a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt back -= 255 - 4; 528a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt front += 255 - 4; 529a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_buf_update_ie_hdr(buf, *ie_len); 530a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt *ie_len = p2p_buf_add_ie_hdr(buf); 531a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt } 532a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 533a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_data(buf, &svc_name[front], back); 534a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt remaining = 255 - 4 - back; 535aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt } else { 536a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_data(buf, svc_name, svc_len); 537a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt remaining -= svc_len; 538aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt } 539aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 540a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_buf_update_ie_hdr(buf, *ie_len); 541a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 542a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt /* set *ie_len to NULL if a new IE has to be added on the next call */ 543a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (!remaining) 544a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt *ie_len = NULL; 545a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 546a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt /* set *pos to point to the next byte to update */ 547a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt *pos = wpabuf_put(buf, 0); 548a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 549a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt *total_len += info_len; 550a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt WPA_PUT_LE16(attr_len, (u16) *total_len); 551a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt return 0; 552a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt} 553a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 554a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 555a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidtvoid p2p_buf_add_service_instance(struct wpabuf *buf, struct p2p_data *p2p, 556a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt u8 hash_count, const u8 *hash, 557a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt struct p2ps_advertisement *adv_list) 558a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt{ 559a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt struct p2ps_advertisement *adv; 5604171258d30a612645aa061cede62233b5c58ca2aDmitry Shmidt int p2ps_wildcard; 561a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt size_t total_len; 562a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt struct wpabuf *tmp_buf = NULL; 563a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt u8 *pos, *attr_len, *ie_len = NULL; 564a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 565a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (!adv_list || !hash || !hash_count) 566a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt return; 567a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 568a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "P2PS: Probe Request service hash values", 569a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt hash, hash_count * P2PS_HASH_LEN); 570a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2ps_wildcard = p2ps_wildcard_hash(p2p, hash, hash_count) && 571a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_wfa_service_adv(p2p); 572a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 573a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt /* Allocate temp buffer, allowing for overflow of 1 instance */ 574a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt tmp_buf = wpabuf_alloc(MAX_SVC_ADV_IE_LEN + 256 + P2PS_HASH_LEN); 575a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (!tmp_buf) 576a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt return; 577a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 578a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt /* 579a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt * Attribute data can be split into a number of IEs. Start with the 580a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt * first IE and the attribute headers here. 581a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt */ 582a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt ie_len = p2p_buf_add_ie_hdr(tmp_buf); 583a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 584a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt total_len = 0; 585a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 586a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_u8(tmp_buf, P2P_ATTR_ADVERTISED_SERVICE); 587a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt attr_len = wpabuf_put(tmp_buf, sizeof(u16)); 588a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt WPA_PUT_LE16(attr_len, (u16) total_len); 589a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_buf_update_ie_hdr(tmp_buf, ie_len); 590a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt pos = wpabuf_put(tmp_buf, 0); 591a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 592a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (p2ps_wildcard) { 593a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt /* org.wi-fi.wfds match found */ 594a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_buf_add_service_info(tmp_buf, p2p, 0, 0, P2PS_WILD_HASH_STR, 595a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt &ie_len, &pos, &total_len, attr_len); 596a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt } 597a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 598a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt /* add advertised service info of matching services */ 599a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt for (adv = adv_list; adv && total_len <= MAX_SVC_ADV_LEN; 600a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt adv = adv->next) { 601a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt const u8 *test = hash; 602a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt u8 i; 603a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 604a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt for (i = 0; i < hash_count; i++) { 605a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt /* exact name hash match */ 606a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt if (os_memcmp(test, adv->hash, P2PS_HASH_LEN) == 0 && 607a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt p2p_buf_add_service_info(tmp_buf, p2p, 608a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt adv->id, 609a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt adv->config_methods, 610a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt adv->svc_name, 611a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt &ie_len, &pos, 612a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt &total_len, 613a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt attr_len)) 614a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt break; 6154171258d30a612645aa061cede62233b5c58ca2aDmitry Shmidt 616a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt test += P2PS_HASH_LEN; 617a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt } 618a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt } 619a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt 6204171258d30a612645aa061cede62233b5c58ca2aDmitry Shmidt if (total_len) 621a3dc30964aa24aea2b518246f6812663a1103490Dmitry Shmidt wpabuf_put_buf(buf, tmp_buf); 622aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_free(tmp_buf); 623aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt} 624aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 625aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 626aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidtvoid p2p_buf_add_session_id(struct wpabuf *buf, u32 id, const u8 *mac) 627aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt{ 628aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt if (!buf || !mac) 629aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt return; 630aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 631aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt /* Session ID Info */ 632aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_SESSION_ID); 633aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_le16(buf, (u16) (sizeof(u32) + ETH_ALEN)); 634aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_le32(buf, id); 635aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_data(buf, mac, ETH_ALEN); 636aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Session ID Info (%x) " MACSTR, 637aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt id, MAC2STR(mac)); 638aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt} 639aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 640aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 641aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidtvoid p2p_buf_add_feature_capability(struct wpabuf *buf, u16 len, const u8 *mask) 642aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt{ 643aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt if (!buf || !len || !mask) 644aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt return; 645aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 646aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt /* Feature Capability */ 647aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_FEATURE_CAPABILITY); 648aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_le16(buf, len); 649aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_data(buf, mask, len); 650aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * Feature Capability (%d)", len); 651aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt} 652aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 653aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 654aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidtvoid p2p_buf_add_persistent_group_info(struct wpabuf *buf, const u8 *dev_addr, 655aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt const u8 *ssid, size_t ssid_len) 656aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt{ 657aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt /* P2P Group ID */ 658aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_u8(buf, P2P_ATTR_PERSISTENT_GROUP); 659aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_le16(buf, ETH_ALEN + ssid_len); 660aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_data(buf, dev_addr, ETH_ALEN); 661aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpabuf_put_data(buf, ssid, ssid_len); 662aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: * P2P Group ID " MACSTR, 663aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt MAC2STR(dev_addr)); 664aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt} 665aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 666aff761db795db8b506c6f6af7ff607856cf85a81Dmitry Shmidt 66768d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidtstatic int p2p_add_wps_string(struct wpabuf *buf, enum wps_attribute attr, 66868d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt const char *val) 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t len; 6718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = val ? os_strlen(val) : 0; 67368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wpabuf_tailroom(buf) < 4 + len) 67468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 67568d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt wpabuf_put_be16(buf, attr); 6768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef CONFIG_WPS_STRICT 6778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len == 0) { 6788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 6798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Some deployed WPS implementations fail to parse zeor-length 6808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * attributes. As a workaround, send a space character if the 6818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * device attribute string is empty. 6828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 68368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wpabuf_tailroom(buf) < 3) 68468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, 1); 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, ' '); 68768d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return 0; 6888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_WPS_STRICT */ 6908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, len); 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (val) 6928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, val, len); 69368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return 0; 6948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 69768d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidtint p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, int pw_id, 69868d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt int all_attr) 6998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *len; 7018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int i; 7028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 70368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wpabuf_tailroom(buf) < 6) 70468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 7058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC); 7068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = wpabuf_put(buf, 1); 7078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be32(buf, WPS_DEV_OUI_WFA); 7088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 70968d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wps_build_version(buf) < 0) 71068d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 7118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (all_attr) { 71368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wpabuf_tailroom(buf) < 5) 71468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 7158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, ATTR_WPS_STATE); 7168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, 1); 7178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, WPS_STATE_NOT_CONFIGURED); 7188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 72004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt if (pw_id >= 0) { 72168d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wpabuf_tailroom(buf) < 6) 72268d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 72304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt /* Device Password ID */ 72404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt wpabuf_put_be16(buf, ATTR_DEV_PASSWORD_ID); 72504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt wpabuf_put_be16(buf, 2); 72604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt wpa_printf(MSG_DEBUG, "P2P: WPS IE Device Password ID: %d", 72704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt pw_id); 72804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt wpabuf_put_be16(buf, pw_id); 72904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt } 7308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (all_attr) { 73268d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wpabuf_tailroom(buf) < 5) 73368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 7348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, ATTR_RESPONSE_TYPE); 7358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, 1); 7368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, WPS_RESP_ENROLLEE_INFO); 7378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 73868d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wps_build_uuid_e(buf, p2p->cfg->uuid) < 0 || 73968d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt p2p_add_wps_string(buf, ATTR_MANUFACTURER, 74068d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt p2p->cfg->manufacturer) < 0 || 74168d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt p2p_add_wps_string(buf, ATTR_MODEL_NAME, 74268d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt p2p->cfg->model_name) < 0 || 74368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt p2p_add_wps_string(buf, ATTR_MODEL_NUMBER, 74468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt p2p->cfg->model_number) < 0 || 74568d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt p2p_add_wps_string(buf, ATTR_SERIAL_NUMBER, 74668d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt p2p->cfg->serial_number) < 0) 74768d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 74868d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 74968d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wpabuf_tailroom(buf) < 4 + WPS_DEV_TYPE_LEN) 75068d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 7518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, ATTR_PRIMARY_DEV_TYPE); 7528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, WPS_DEV_TYPE_LEN); 7538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, p2p->cfg->pri_dev_type, WPS_DEV_TYPE_LEN); 7548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 75568d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (p2p_add_wps_string(buf, ATTR_DEV_NAME, p2p->cfg->dev_name) 75668d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt < 0) 75768d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 7588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 75968d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wpabuf_tailroom(buf) < 6) 76068d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 7618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, ATTR_CONFIG_METHODS); 7628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, 2); 7638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, p2p->cfg->config_methods); 7648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 76668d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wps_build_wfa_ext(buf, 0, NULL, 0) < 0) 76768d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 7688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (all_attr && p2p->cfg->num_sec_dev_types) { 77068d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (wpabuf_tailroom(buf) < 77168d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 4 + WPS_DEV_TYPE_LEN * p2p->cfg->num_sec_dev_types) 77268d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return -1; 7738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, ATTR_SECONDARY_DEV_TYPE_LIST); 7748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, WPS_DEV_TYPE_LEN * 7758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->num_sec_dev_types); 7768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, p2p->cfg->sec_dev_type, 7778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPS_DEV_TYPE_LEN * 7788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p->cfg->num_sec_dev_types); 7798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Add the WPS vendor extensions */ 7828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) { 7838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (p2p->wps_vendor_ext[i] == NULL) 7848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 7858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpabuf_tailroom(buf) < 7868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4 + wpabuf_len(p2p->wps_vendor_ext[i])) 7878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt continue; 7888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, ATTR_VENDOR_EXT); 7898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, wpabuf_len(p2p->wps_vendor_ext[i])); 7908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_buf(buf, p2p->wps_vendor_ext[i]); 7918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt p2p_buf_update_ie_hdr(buf, len); 79468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 79568d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt return 0; 7968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 797