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 * 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 "wpa.h" 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "pmksa_cache.h" 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_defs.h" 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpa_i.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpa_ie.h" 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_parse_wpa_ie - Parse WPA/RSN IE 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wpa_ie: Pointer to WPA or RSN IE 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wpa_ie_len: Length of the WPA/RSN IE 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @data: Pointer to data area for parsing results 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Parse the contents of WPA or RSN IE and write the parsed data into data. 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len, 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ie_data *data) 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ie_len >= 1 && wpa_ie[0] == WLAN_EID_RSN) 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_parse_wpa_ie_rsn(wpa_ie, wpa_ie_len, data); 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_parse_wpa_ie_wpa(wpa_ie, wpa_ie_len, data); 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_gen_wpa_ie_wpa(u8 *wpa_ie, size_t wpa_ie_len, 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise_cipher, int group_cipher, 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int key_mgmt) 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos; 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ie_hdr *hdr; 444530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt u32 suite; 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ie_len < sizeof(*hdr) + WPA_SELECTOR_LEN + 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2 + WPA_SELECTOR_LEN + 2 + WPA_SELECTOR_LEN) 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct wpa_ie_hdr *) wpa_ie; 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->elem_id = WLAN_EID_VENDOR_SPECIFIC; 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(hdr->oui, WPA_OUI_TYPE); 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->version, WPA_VERSION); 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (hdr + 1); 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 564530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt suite = wpa_cipher_to_suite(WPA_PROTO_WPA, group_cipher); 574530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt if (suite == 0) { 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid group cipher (%d).", 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_cipher); 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 624530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt RSN_SELECTOR_PUT(pos, suite); 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += WPA_SELECTOR_LEN; 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 1; 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0; 674530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt suite = wpa_cipher_to_suite(WPA_PROTO_WPA, pairwise_cipher); 684530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt if (suite == 0 || 694530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt (!wpa_cipher_valid_pairwise(pairwise_cipher) && 704530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt pairwise_cipher != WPA_CIPHER_NONE)) { 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid pairwise cipher (%d).", 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise_cipher); 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 754530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt RSN_SELECTOR_PUT(pos, suite); 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += WPA_SELECTOR_LEN; 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 1; 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0; 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key_mgmt == WPA_KEY_MGMT_IEEE8021X) { 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_AUTH_KEY_MGMT_UNSPEC_802_1X); 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_PSK) { 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X); 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_AUTH_KEY_MGMT_NONE); 86d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_CCKM) { 87d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt RSN_SELECTOR_PUT(pos, WPA_AUTH_KEY_MGMT_CCKM); 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid key management type (%d).", 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_mgmt); 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += WPA_SELECTOR_LEN; 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* WPA Capabilities; use defaults, so no need to include it */ 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->len = (pos - wpa_ie) - 2; 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_ASSERT((size_t) (pos - wpa_ie) <= wpa_ie_len); 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos - wpa_ie; 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_gen_wpa_ie_rsn(u8 *rsn_ie, size_t rsn_ie_len, 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise_cipher, int group_cipher, 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int key_mgmt, int mgmt_group_cipher, 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_sm *sm) 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos; 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ie_hdr *hdr; 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 capab; 1134530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt u32 suite; 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rsn_ie_len < sizeof(*hdr) + RSN_SELECTOR_LEN + 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2 + RSN_SELECTOR_LEN + 2 + RSN_SELECTOR_LEN + 2 + 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (sm->cur_pmksa ? 2 + PMKID_LEN : 0)) { 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "RSN: Too short IE buffer (%lu bytes)", 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) rsn_ie_len); 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ie_hdr *) rsn_ie; 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->elem_id = WLAN_EID_RSN; 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->version, RSN_VERSION); 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (hdr + 1); 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1284530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt suite = wpa_cipher_to_suite(WPA_PROTO_RSN, group_cipher); 1294530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt if (suite == 0) { 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid group cipher (%d).", 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt group_cipher); 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1344530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt RSN_SELECTOR_PUT(pos, suite); 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 1; 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0; 1394530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt suite = wpa_cipher_to_suite(WPA_PROTO_RSN, pairwise_cipher); 1404530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt if (suite == 0 || 1414530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt (!wpa_cipher_valid_pairwise(pairwise_cipher) && 1424530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt pairwise_cipher != WPA_CIPHER_NONE)) { 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid pairwise cipher (%d).", 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise_cipher); 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1474530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt RSN_SELECTOR_PUT(pos, suite); 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 1; 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0; 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key_mgmt == WPA_KEY_MGMT_IEEE8021X) { 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_UNSPEC_802_1X); 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_PSK) { 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X); 156d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_CCKM) { 157d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_CCKM); 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211R 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_FT_IEEE8021X) { 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_FT_802_1X); 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_FT_PSK) { 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_FT_PSK); 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211R */ 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_IEEE8021X_SHA256) { 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_802_1X_SHA256); 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_PSK_SHA256) { 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_PSK_SHA256); 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 170d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt#ifdef CONFIG_SAE 171d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_SAE) { 172d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_SAE); 173d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt } else if (key_mgmt == WPA_KEY_MGMT_FT_SAE) { 174d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_FT_SAE); 175d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt#endif /* CONFIG_SAE */ 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid key management type (%d).", 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_mgmt); 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* RSN Capabilities */ 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab = 0; 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->mfp) 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab |= WPA_CAPABILITY_MFPC; 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->mfp == 2) 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab |= WPA_CAPABILITY_MFPR; 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, capab); 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->cur_pmksa) { 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* PMKID Count (2 octets, little endian) */ 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 1; 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0; 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* PMKID */ 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, sm->cur_pmksa->pmkid, PMKID_LEN); 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += PMKID_LEN; 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 204b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (wpa_cipher_valid_mgmt_group(mgmt_group_cipher)) { 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!sm->cur_pmksa) { 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* PMKID Count */ 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, 0); 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Management Group Cipher Suite */ 212b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt RSN_SELECTOR_PUT(pos, wpa_cipher_to_suite(WPA_PROTO_RSN, 213b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt mgmt_group_cipher)); 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->len = (pos - rsn_ie) - 2; 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_ASSERT((size_t) (pos - rsn_ie) <= rsn_ie_len); 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos - rsn_ie; 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 226f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt#ifdef CONFIG_HS20 227f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidtstatic int wpa_gen_wpa_ie_osen(u8 *wpa_ie, size_t wpa_ie_len, 228f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt int pairwise_cipher, int group_cipher, 229f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt int key_mgmt) 230f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt{ 231f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt u8 *pos, *len; 232f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt u32 suite; 233f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt 234f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt if (wpa_ie_len < 2 + 4 + RSN_SELECTOR_LEN + 235f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt 2 + RSN_SELECTOR_LEN + 2 + RSN_SELECTOR_LEN) 236f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt return -1; 237f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt 238f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt pos = wpa_ie; 239f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt *pos++ = WLAN_EID_VENDOR_SPECIFIC; 240f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt len = pos++; /* to be filled */ 241f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt WPA_PUT_BE24(pos, OUI_WFA); 242f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt pos += 3; 243f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt *pos++ = HS20_OSEN_OUI_TYPE; 244f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt 245f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt /* Group Data Cipher Suite */ 246f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt suite = wpa_cipher_to_suite(WPA_PROTO_RSN, group_cipher); 247f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt if (suite == 0) { 248f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid group cipher (%d).", 249f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt group_cipher); 250f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt return -1; 251f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt } 252f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt RSN_SELECTOR_PUT(pos, suite); 253f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt pos += RSN_SELECTOR_LEN; 254f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt 255f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt /* Pairwise Cipher Suite Count and List */ 256f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt WPA_PUT_LE16(pos, 1); 257f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt pos += 2; 258f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt suite = wpa_cipher_to_suite(WPA_PROTO_RSN, pairwise_cipher); 259f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt if (suite == 0 || 260f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt (!wpa_cipher_valid_pairwise(pairwise_cipher) && 261f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt pairwise_cipher != WPA_CIPHER_NONE)) { 262f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt wpa_printf(MSG_WARNING, "Invalid pairwise cipher (%d).", 263f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt pairwise_cipher); 264f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt return -1; 265f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt } 266f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt RSN_SELECTOR_PUT(pos, suite); 267f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt pos += RSN_SELECTOR_LEN; 268f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt 269f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt /* AKM Suite Count and List */ 270f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt WPA_PUT_LE16(pos, 1); 271f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt pos += 2; 272f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_OSEN); 273f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt pos += RSN_SELECTOR_LEN; 274f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt 275f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt *len = pos - len - 1; 276f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt 277f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt WPA_ASSERT((size_t) (pos - wpa_ie) <= wpa_ie_len); 278f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt 279f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt return pos - wpa_ie; 280f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt} 281f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt#endif /* CONFIG_HS20 */ 282f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt 283f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_gen_wpa_ie - Generate WPA/RSN IE based on current security policy 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @sm: Pointer to WPA state machine data from wpa_sm_init() 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wpa_ie: Pointer to memory area for the generated WPA/RSN IE 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wpa_ie_len: Maximum length of the generated WPA/RSN IE 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: Length of the generated WPA/RSN IE or -1 on failure 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_gen_wpa_ie(struct wpa_sm *sm, u8 *wpa_ie, size_t wpa_ie_len) 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->proto == WPA_PROTO_RSN) 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_gen_wpa_ie_rsn(wpa_ie, wpa_ie_len, 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise_cipher, 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->group_cipher, 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->key_mgmt, sm->mgmt_group_cipher, 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm); 299f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt#ifdef CONFIG_HS20 300f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt else if (sm->proto == WPA_PROTO_OSEN) 301f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt return wpa_gen_wpa_ie_osen(wpa_ie, wpa_ie_len, 302f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt sm->pairwise_cipher, 303f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt sm->group_cipher, 304f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt sm->key_mgmt); 305f21452aea786ac056eb01f1cbba4f553bd502747Dmitry Shmidt#endif /* CONFIG_HS20 */ 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_gen_wpa_ie_wpa(wpa_ie, wpa_ie_len, 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise_cipher, 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->group_cipher, 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->key_mgmt); 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 315b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt * wpa_parse_vendor_specific - Parse Vendor Specific IEs 316b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt * @pos: Pointer to the IE header 317b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt * @end: Pointer to the end of the Key Data buffer 318b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt * @ie: Pointer to parsed IE data 319b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt * Returns: 0 on success, 1 if end mark is found, -1 on failure 320b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt */ 321b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidtstatic int wpa_parse_vendor_specific(const u8 *pos, const u8 *end, 322b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt struct wpa_eapol_ie_parse *ie) 323b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt{ 324b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt unsigned int oui; 325b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 326b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (pos[1] < 4) { 327b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt wpa_printf(MSG_MSGDUMP, "Too short vendor specific IE ignored (len=%u)", 328b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt pos[1]); 329b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt return 1; 330b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt } 331b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 332b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt oui = WPA_GET_BE24(&pos[2]); 333b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (oui == OUI_MICROSOFT && pos[5] == WMM_OUI_TYPE && pos[1] > 4) { 334b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (pos[6] == WMM_OUI_SUBTYPE_INFORMATION_ELEMENT) { 335b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt ie->wmm = &pos[2]; 336b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt ie->wmm_len = pos[1]; 337b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: WMM IE", 338b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt ie->wmm, ie->wmm_len); 339b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt } else if (pos[6] == WMM_OUI_SUBTYPE_PARAMETER_ELEMENT) { 340b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt ie->wmm = &pos[2]; 341b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt ie->wmm_len = pos[1]; 342b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: WMM Parameter Element", 343b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt ie->wmm, ie->wmm_len); 344b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt } 345b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt } 346b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt return 0; 347b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt} 348b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 349b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 350b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt/** 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_parse_generic - Parse EAPOL-Key Key Data Generic IEs 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @pos: Pointer to the IE header 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @end: Pointer to the end of the Key Data buffer 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ie: Pointer to parsed IE data 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, 1 if end mark is found, -1 on failure 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_parse_generic(const u8 *pos, const u8 *end, 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse *ie) 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] == 0) 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 1; 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] >= 6 && 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == WPA_OUI_TYPE && 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos[2 + WPA_SELECTOR_LEN] == 1 && 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos[2 + WPA_SELECTOR_LEN + 1] == 0) { 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->wpa_ie = pos; 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->wpa_ie_len = pos[1] + 2; 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: WPA IE in EAPOL-Key", 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->wpa_ie, ie->wpa_ie_len); 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos + 1 + RSN_SELECTOR_LEN < end && 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos[1] >= RSN_SELECTOR_LEN + PMKID_LEN && 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_PMKID) { 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->pmkid = pos + 2 + RSN_SELECTOR_LEN; 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: PMKID in EAPOL-Key", 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_GROUPKEY) { 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->gtk = pos + 2 + RSN_SELECTOR_LEN; 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->gtk_len = pos[1] - RSN_SELECTOR_LEN; 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "WPA: GTK in EAPOL-Key", 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_MAC_ADDR) { 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->mac_addr = pos + 2 + RSN_SELECTOR_LEN; 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->mac_addr_len = pos[1] - RSN_SELECTOR_LEN; 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: MAC Address in EAPOL-Key", 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_PEERKEY 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_SMK) { 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->smk = pos + 2 + RSN_SELECTOR_LEN; 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->smk_len = pos[1] - RSN_SELECTOR_LEN; 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "WPA: SMK in EAPOL-Key", 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_NONCE) { 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->nonce = pos + 2 + RSN_SELECTOR_LEN; 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->nonce_len = pos[1] - RSN_SELECTOR_LEN; 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Nonce in EAPOL-Key", 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_LIFETIME) { 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->lifetime = pos + 2 + RSN_SELECTOR_LEN; 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->lifetime_len = pos[1] - RSN_SELECTOR_LEN; 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Lifetime in EAPOL-Key", 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_ERROR) { 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->error = pos + 2 + RSN_SELECTOR_LEN; 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->error_len = pos[1] - RSN_SELECTOR_LEN; 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Error in EAPOL-Key", 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_PEERKEY */ 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] > RSN_SELECTOR_LEN + 2 && 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_GET(pos + 2) == RSN_KEY_DATA_IGTK) { 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->igtk = pos + 2 + RSN_SELECTOR_LEN; 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->igtk_len = pos[1] - RSN_SELECTOR_LEN; 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "WPA: IGTK in EAPOL-Key", 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, pos[1] + 2); 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 450cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt#ifdef CONFIG_P2P 451cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (pos[1] >= RSN_SELECTOR_LEN + 1 && 452cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt RSN_SELECTOR_GET(pos + 2) == WFA_KEY_DATA_IP_ADDR_REQ) { 453cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt ie->ip_addr_req = pos + 2 + RSN_SELECTOR_LEN; 454cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: IP Address Request in EAPOL-Key", 455cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt ie->ip_addr_req, pos[1] - RSN_SELECTOR_LEN); 456cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt return 0; 457cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt } 458cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt 459cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt if (pos[1] >= RSN_SELECTOR_LEN + 3 * 4 && 460cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt RSN_SELECTOR_GET(pos + 2) == WFA_KEY_DATA_IP_ADDR_ALLOC) { 461cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt ie->ip_addr_alloc = pos + 2 + RSN_SELECTOR_LEN; 462cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt wpa_hexdump(MSG_DEBUG, 463cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt "WPA: IP Address Allocation in EAPOL-Key", 464cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt ie->ip_addr_alloc, pos[1] - RSN_SELECTOR_LEN); 465cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt return 0; 466cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt } 467cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt#endif /* CONFIG_P2P */ 468cf32e60fa7e0d33fe1551a6dba8dcbbec47ea50eDmitry Shmidt 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_supplicant_parse_ies - Parse EAPOL-Key Key Data IEs 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @buf: Pointer to the Key Data buffer 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @len: Key Data Length 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ie: Pointer to parsed IE data 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_supplicant_parse_ies(const u8 *buf, size_t len, 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse *ie) 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos, *end; 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret = 0; 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(ie, 0, sizeof(*ie)); 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (pos = buf, end = pos + len; pos + 1 < end; pos += 2 + pos[1]) { 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[0] == 0xdd && 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ((pos == buf + len - 1) || pos[1] == 0)) { 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Ignore padding */ 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos + 2 + pos[1] > end) { 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "WPA: EAPOL-Key Key Data " 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "underflow (ie=%d len=%d pos=%d)", 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos[0], pos[1], (int) (pos - buf)); 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "WPA: Key Data", 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf, len); 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = -1; 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (*pos == WLAN_EID_RSN) { 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->rsn_ie = pos; 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->rsn_ie_len = pos[1] + 2; 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: RSN IE in EAPOL-Key", 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->rsn_ie, ie->rsn_ie_len); 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_MOBILITY_DOMAIN) { 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->mdie = pos; 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->mdie_len = pos[1] + 2; 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: MDIE in EAPOL-Key", 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->mdie, ie->mdie_len); 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_FAST_BSS_TRANSITION) { 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->ftie = pos; 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->ftie_len = pos[1] + 2; 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: FTIE in EAPOL-Key", 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->ftie, ie->ftie_len); 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_TIMEOUT_INTERVAL && pos[1] >= 5) { 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[2] == WLAN_TIMEOUT_REASSOC_DEADLINE) { 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->reassoc_deadline = pos; 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Reassoc Deadline " 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "in EAPOL-Key", 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->reassoc_deadline, pos[1] + 2); 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (pos[2] == WLAN_TIMEOUT_KEY_LIFETIME) { 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->key_lifetime = pos; 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: KeyLifetime " 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "in EAPOL-Key", 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->key_lifetime, pos[1] + 2); 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Unrecognized " 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "EAPOL-Key Key Data IE", 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos, 2 + pos[1]); 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_LINK_ID) { 5341f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (pos[1] >= 18) { 5351f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->lnkid = pos; 5361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->lnkid_len = pos[1] + 2; 5371f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_EXT_CAPAB) { 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->ext_capab = pos; 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ie->ext_capab_len = pos[1] + 2; 5411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } else if (*pos == WLAN_EID_SUPP_RATES) { 5421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->supp_rates = pos; 5431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->supp_rates_len = pos[1] + 2; 5441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } else if (*pos == WLAN_EID_EXT_SUPP_RATES) { 5451f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->ext_supp_rates = pos; 5461f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt ie->ext_supp_rates_len = pos[1] + 2; 547f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } else if (*pos == WLAN_EID_HT_CAP) { 548f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt ie->ht_capabilities = pos + 2; 549f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt ie->ht_capabilities_len = pos[1]; 55051b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt } else if (*pos == WLAN_EID_VHT_AID) { 55151b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt if (pos[1] >= 2) 5529ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt ie->aid = WPA_GET_LE16(pos + 2) & 0x3fff; 55333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt } else if (*pos == WLAN_EID_VHT_CAP) { 55433e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt ie->vht_capabilities = pos + 2; 55533e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt ie->vht_capabilities_len = pos[1]; 556f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } else if (*pos == WLAN_EID_QOS && pos[1] >= 1) { 557f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt ie->qosinfo = pos[2]; 558344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } else if (*pos == WLAN_EID_SUPPORTED_CHANNELS) { 559344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt ie->supp_channels = pos + 2; 560344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt ie->supp_channels_len = pos[1]; 561344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } else if (*pos == WLAN_EID_SUPPORTED_OPERATING_CLASSES) { 5624582d2a5dd8180c52eb95b1100fb183b9a289708Dmitry Shmidt /* 5634582d2a5dd8180c52eb95b1100fb183b9a289708Dmitry Shmidt * The value of the Length field of the Supported 5644582d2a5dd8180c52eb95b1100fb183b9a289708Dmitry Shmidt * Operating Classes element is between 2 and 253. 5654582d2a5dd8180c52eb95b1100fb183b9a289708Dmitry Shmidt * Silently skip invalid elements to avoid interop 5664582d2a5dd8180c52eb95b1100fb183b9a289708Dmitry Shmidt * issues when trying to use the value. 5674582d2a5dd8180c52eb95b1100fb183b9a289708Dmitry Shmidt */ 5684582d2a5dd8180c52eb95b1100fb183b9a289708Dmitry Shmidt if (pos[1] >= 2 && pos[1] <= 253) { 5694582d2a5dd8180c52eb95b1100fb183b9a289708Dmitry Shmidt ie->supp_oper_classes = pos + 2; 5704582d2a5dd8180c52eb95b1100fb183b9a289708Dmitry Shmidt ie->supp_oper_classes_len = pos[1]; 5714582d2a5dd8180c52eb95b1100fb183b9a289708Dmitry Shmidt } 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (*pos == WLAN_EID_VENDOR_SPECIFIC) { 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = wpa_parse_generic(pos, end, ie); 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret < 0) 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret > 0) { 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = 0; 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 580b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 581b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt ret = wpa_parse_vendor_specific(pos, end, ie); 582b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (ret < 0) 583b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt break; 584b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (ret > 0) { 585b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt ret = 0; 586b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt break; 587b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt } 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "WPA: Unrecognized EAPOL-Key " 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Key Data IE", pos, 2 + pos[1]); 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ret; 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 596