wpa_ie.c revision 1f69aa52ea2e0a73ac502565df8c666ee49cab6a
18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_supplicant - WPA/RSN IE and KDE processing 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi> 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 58d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This program is free software; you can redistribute it and/or modify 68d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * it under the terms of the GNU General Public License version 2 as 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * published by the Free Software Foundation. 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Alternatively, this software may be distributed under the terms of BSD 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * license. 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * See README and COPYING for more details. 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "includes.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common.h" 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpa.h" 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "pmksa_cache.h" 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_defs.h" 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpa_i.h" 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpa_ie.h" 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_parse_wpa_ie - Parse WPA/RSN IE 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wpa_ie: Pointer to WPA or RSN IE 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wpa_ie_len: Length of the WPA/RSN IE 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @data: Pointer to data area for parsing results 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Parse the contents of WPA or RSN IE and write the parsed data into data. 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len, 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ie_data *data) 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ie_len >= 1 && wpa_ie[0] == WLAN_EID_RSN) 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_parse_wpa_ie_rsn(wpa_ie, wpa_ie_len, data); 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_parse_wpa_ie_wpa(wpa_ie, wpa_ie_len, data); 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_gen_wpa_ie_wpa(u8 *wpa_ie, size_t wpa_ie_len, 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise_cipher, int group_cipher, 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int key_mgmt) 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos; 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ie_hdr *hdr; 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ie_len < sizeof(*hdr) + WPA_SELECTOR_LEN + 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2 + WPA_SELECTOR_LEN + 2 + WPA_SELECTOR_LEN) 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct wpa_ie_hdr *) wpa_ie; 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->elem_id = WLAN_EID_VENDOR_SPECIFIC; 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(hdr->oui, WPA_OUI_TYPE); 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->version, WPA_VERSION); 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (hdr + 1); 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group_cipher == WPA_CIPHER_CCMP) { 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_CIPHER_SUITE_CCMP); 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (group_cipher == WPA_CIPHER_TKIP) { 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_CIPHER_SUITE_TKIP); 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (group_cipher == WPA_CIPHER_WEP104) { 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_CIPHER_SUITE_WEP104); 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (group_cipher == WPA_CIPHER_WEP40) { 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_CIPHER_SUITE_WEP40); 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid group cipher (%d).", 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_cipher); 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += WPA_SELECTOR_LEN; 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 1; 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0; 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pairwise_cipher == WPA_CIPHER_CCMP) { 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_CIPHER_SUITE_CCMP); 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (pairwise_cipher == WPA_CIPHER_TKIP) { 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_CIPHER_SUITE_TKIP); 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (pairwise_cipher == WPA_CIPHER_NONE) { 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_CIPHER_SUITE_NONE); 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid pairwise cipher (%d).", 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise_cipher); 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += WPA_SELECTOR_LEN; 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 1; 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0; 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key_mgmt == WPA_KEY_MGMT_IEEE8021X) { 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_AUTH_KEY_MGMT_UNSPEC_802_1X); 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_PSK) { 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X); 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_AUTH_KEY_MGMT_NONE); 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid key management type (%d).", 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_mgmt); 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += WPA_SELECTOR_LEN; 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* WPA Capabilities; use defaults, so no need to include it */ 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->len = (pos - wpa_ie) - 2; 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_ASSERT((size_t) (pos - wpa_ie) <= wpa_ie_len); 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos - wpa_ie; 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_gen_wpa_ie_rsn(u8 *rsn_ie, size_t rsn_ie_len, 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise_cipher, int group_cipher, 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int key_mgmt, int mgmt_group_cipher, 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_sm *sm) 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef CONFIG_NO_WPA2 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos; 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ie_hdr *hdr; 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 capab; 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rsn_ie_len < sizeof(*hdr) + RSN_SELECTOR_LEN + 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2 + RSN_SELECTOR_LEN + 2 + RSN_SELECTOR_LEN + 2 + 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (sm->cur_pmksa ? 2 + PMKID_LEN : 0)) { 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "RSN: Too short IE buffer (%lu bytes)", 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) rsn_ie_len); 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ie_hdr *) rsn_ie; 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->elem_id = WLAN_EID_RSN; 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->version, RSN_VERSION); 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (hdr + 1); 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (group_cipher == WPA_CIPHER_CCMP) { 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_CCMP); 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (group_cipher == WPA_CIPHER_TKIP) { 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_TKIP); 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (group_cipher == WPA_CIPHER_WEP104) { 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_WEP104); 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (group_cipher == WPA_CIPHER_WEP40) { 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_WEP40); 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid group cipher (%d).", 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_cipher); 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 1; 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0; 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pairwise_cipher == WPA_CIPHER_CCMP) { 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_CCMP); 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (pairwise_cipher == WPA_CIPHER_TKIP) { 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_TKIP); 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (pairwise_cipher == WPA_CIPHER_NONE) { 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_NONE); 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid pairwise cipher (%d).", 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise_cipher); 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 1; 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0; 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key_mgmt == WPA_KEY_MGMT_IEEE8021X) { 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_UNSPEC_802_1X); 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_PSK) { 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X); 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211R 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_FT_IEEE8021X) { 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_FT_802_1X); 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_FT_PSK) { 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_FT_PSK); 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211R */ 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_IEEE8021X_SHA256) { 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_802_1X_SHA256); 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_PSK_SHA256) { 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_PSK_SHA256); 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid key management type (%d).", 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_mgmt); 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* RSN Capabilities */ 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab = 0; 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->mfp) 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab |= WPA_CAPABILITY_MFPC; 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->mfp == 2) 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab |= WPA_CAPABILITY_MFPR; 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, capab); 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->cur_pmksa) { 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* PMKID Count (2 octets, little endian) */ 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 1; 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0; 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* PMKID */ 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, sm->cur_pmksa->pmkid, PMKID_LEN); 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += PMKID_LEN; 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (mgmt_group_cipher == WPA_CIPHER_AES_128_CMAC) { 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!sm->cur_pmksa) { 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* PMKID Count */ 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, 0); 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Management Group Cipher Suite */ 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_AES_128_CMAC); 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->len = (pos - rsn_ie) - 2; 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_ASSERT((size_t) (pos - rsn_ie) <= rsn_ie_len); 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos - rsn_ie; 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else /* CONFIG_NO_WPA2 */ 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_NO_WPA2 */ 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_gen_wpa_ie - Generate WPA/RSN IE based on current security policy 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @sm: Pointer to WPA state machine data from wpa_sm_init() 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wpa_ie: Pointer to memory area for the generated WPA/RSN IE 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wpa_ie_len: Maximum length of the generated WPA/RSN IE 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Length of the generated WPA/RSN IE or -1 on failure 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_gen_wpa_ie(struct wpa_sm *sm, u8 *wpa_ie, size_t wpa_ie_len) 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->proto == WPA_PROTO_RSN) 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_gen_wpa_ie_rsn(wpa_ie, wpa_ie_len, 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise_cipher, 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->group_cipher, 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->key_mgmt, sm->mgmt_group_cipher, 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm); 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_gen_wpa_ie_wpa(wpa_ie, wpa_ie_len, 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise_cipher, 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->group_cipher, 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->key_mgmt); 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_parse_generic - Parse EAPOL-Key Key Data Generic IEs 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @pos: Pointer to the IE header 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @end: Pointer to the end of the Key Data buffer 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ie: Pointer to parsed IE data 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, 1 if end mark is found, -1 on failure 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 2698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_parse_generic(const u8 *pos, const u8 *end, 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse *ie) 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] == 0) 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] >= 6 && 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == WPA_OUI_TYPE && 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos[2 + WPA_SELECTOR_LEN] == 1 && 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos[2 + WPA_SELECTOR_LEN + 1] == 0) { 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->wpa_ie = pos; 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->wpa_ie_len = pos[1] + 2; 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: WPA IE in EAPOL-Key", 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->wpa_ie, ie->wpa_ie_len); 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos + 1 + RSN_SELECTOR_LEN < end && 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos[1] >= RSN_SELECTOR_LEN + PMKID_LEN && 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_PMKID) { 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->pmkid = pos + 2 + RSN_SELECTOR_LEN; 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: PMKID in EAPOL-Key", 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_GROUPKEY) { 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->gtk = pos + 2 + RSN_SELECTOR_LEN; 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->gtk_len = pos[1] - RSN_SELECTOR_LEN; 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "WPA: GTK in EAPOL-Key", 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 3058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_MAC_ADDR) { 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->mac_addr = pos + 2 + RSN_SELECTOR_LEN; 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->mac_addr_len = pos[1] - RSN_SELECTOR_LEN; 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: MAC Address in EAPOL-Key", 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_PEERKEY 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_SMK) { 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->smk = pos + 2 + RSN_SELECTOR_LEN; 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->smk_len = pos[1] - RSN_SELECTOR_LEN; 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "WPA: SMK in EAPOL-Key", 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_NONCE) { 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->nonce = pos + 2 + RSN_SELECTOR_LEN; 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->nonce_len = pos[1] - RSN_SELECTOR_LEN; 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Nonce in EAPOL-Key", 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_LIFETIME) { 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->lifetime = pos + 2 + RSN_SELECTOR_LEN; 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->lifetime_len = pos[1] - RSN_SELECTOR_LEN; 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Lifetime in EAPOL-Key", 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_ERROR) { 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->error = pos + 2 + RSN_SELECTOR_LEN; 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->error_len = pos[1] - RSN_SELECTOR_LEN; 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Error in EAPOL-Key", 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_PEERKEY */ 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_IGTK) { 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->igtk = pos + 2 + RSN_SELECTOR_LEN; 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->igtk_len = pos[1] - RSN_SELECTOR_LEN; 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "WPA: IGTK in EAPOL-Key", 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_supplicant_parse_ies - Parse EAPOL-Key Key Data IEs 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @buf: Pointer to the Key Data buffer 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @len: Key Data Length 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ie: Pointer to parsed IE data 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_supplicant_parse_ies(const u8 *buf, size_t len, 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse *ie) 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos, *end; 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret = 0; 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(ie, 0, sizeof(*ie)); 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (pos = buf, end = pos + len; pos + 1 < end; pos += 2 + pos[1]) { 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[0] == 0xdd && 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ((pos == buf + len - 1) || pos[1] == 0)) { 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Ignore padding */ 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos + 2 + pos[1] > end) { 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "WPA: EAPOL-Key Key Data " 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "underflow (ie=%d len=%d pos=%d)", 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos[0], pos[1], (int) (pos - buf)); 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "WPA: Key Data", 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf, len); 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = -1; 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (*pos == WLAN_EID_RSN) { 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->rsn_ie = pos; 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->rsn_ie_len = pos[1] + 2; 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: RSN IE in EAPOL-Key", 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->rsn_ie, ie->rsn_ie_len); 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_MOBILITY_DOMAIN) { 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->mdie = pos; 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->mdie_len = pos[1] + 2; 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: MDIE in EAPOL-Key", 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->mdie, ie->mdie_len); 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_FAST_BSS_TRANSITION) { 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->ftie = pos; 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->ftie_len = pos[1] + 2; 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: FTIE in EAPOL-Key", 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->ftie, ie->ftie_len); 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_TIMEOUT_INTERVAL && pos[1] >= 5) { 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[2] == WLAN_TIMEOUT_REASSOC_DEADLINE) { 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->reassoc_deadline = pos; 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Reassoc Deadline " 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "in EAPOL-Key", 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->reassoc_deadline, pos[1] + 2); 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (pos[2] == WLAN_TIMEOUT_KEY_LIFETIME) { 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->key_lifetime = pos; 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: KeyLifetime " 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "in EAPOL-Key", 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->key_lifetime, pos[1] + 2); 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Unrecognized " 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "EAPOL-Key Key Data IE", 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, 2 + pos[1]); 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_LINK_ID) { 4271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (pos[1] >= 18) { 4281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->lnkid = pos; 4291f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->lnkid_len = pos[1] + 2; 4301f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_EXT_CAPAB) { 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->ext_capab = pos; 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->ext_capab_len = pos[1] + 2; 4341f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } else if (*pos == WLAN_EID_SUPP_RATES) { 4351f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->supp_rates = pos; 4361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->supp_rates_len = pos[1] + 2; 4371f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } else if (*pos == WLAN_EID_EXT_SUPP_RATES) { 4381f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->ext_supp_rates = pos; 4391f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->ext_supp_rates_len = pos[1] + 2; 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_VENDOR_SPECIFIC) { 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = wpa_parse_generic(pos, end, ie); 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret < 0) 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret > 0) { 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = 0; 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Unrecognized EAPOL-Key " 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Key Data IE", pos, 2 + pos[1]); 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ret; 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 456