18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * hostapd / EAP-PEAP (draft-josefsson-pppext-eap-tls-eap-10.txt) 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2004-2008, 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 "crypto/sha1.h" 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/tls.h" 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/random.h" 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "eap_i.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "eap_tls_common.h" 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "eap_common/eap_tlv_common.h" 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "eap_common/eap_peap_common.h" 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "tncs.h" 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* Maximum supported PEAP version 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 0 = Microsoft's PEAP version 0; draft-kamath-pppext-peapv0-00.txt 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 1 = draft-josefsson-ppext-eap-tls-eap-05.txt 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 2 = draft-josefsson-ppext-eap-tls-eap-10.txt 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define EAP_PEAP_VERSION 1 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_reset(struct eap_sm *sm, void *priv); 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct eap_peap_data { 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_ssl_data ssl; 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum { 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt START, PHASE1, PHASE1_ID2, PHASE2_START, PHASE2_ID, 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt PHASE2_METHOD, PHASE2_SOH, 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt PHASE2_TLV, SUCCESS_REQ, FAILURE_REQ, SUCCESS, FAILURE 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } state; 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int peap_version; 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int recv_version; 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct eap_method *phase2_method; 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt void *phase2_priv; 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int force_version; 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *pending_phase2_resp; 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum { TLV_REQ_NONE, TLV_REQ_SUCCESS, TLV_REQ_FAILURE } tlv_request; 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int crypto_binding_sent; 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int crypto_binding_used; 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum { NO_BINDING, OPTIONAL_BINDING, REQUIRE_BINDING } crypto_binding; 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 binding_nonce[32]; 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ipmk[40]; 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 cmk[20]; 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *phase2_key; 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t phase2_key_len; 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *soh_response; 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic const char * eap_peap_state_txt(int state) 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (state) { 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case START: 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "START"; 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE1: 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "PHASE1"; 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE1_ID2: 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "PHASE1_ID2"; 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_START: 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "PHASE2_START"; 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_ID: 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "PHASE2_ID"; 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_METHOD: 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "PHASE2_METHOD"; 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_SOH: 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "PHASE2_SOH"; 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_TLV: 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "PHASE2_TLV"; 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case SUCCESS_REQ: 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "SUCCESS_REQ"; 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case FAILURE_REQ: 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "FAILURE_REQ"; 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case SUCCESS: 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "SUCCESS"; 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case FAILURE: 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "FAILURE"; 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "Unknown?!"; 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_state(struct eap_peap_data *data, int state) 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: %s -> %s", 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state_txt(data->state), 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state_txt(state)); 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->state = state; 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_peapv2_tlv_eap_payload(struct wpabuf *buf) 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *e; 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_tlv_hdr *tlv; 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Encapsulate EAP packet in EAP-Payload TLV */ 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAPv2: Add EAP-Payload TLV"); 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt e = wpabuf_alloc(sizeof(*tlv) + wpabuf_len(buf)); 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (e == NULL) { 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAPv2: Failed to allocate memory " 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "for TLV encapsulation"); 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(buf); 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv = wpabuf_put(e, sizeof(*tlv)); 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv->tlv_type = host_to_be16(EAP_TLV_TYPE_MANDATORY | 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_TLV_EAP_PAYLOAD_TLV); 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv->length = host_to_be16(wpabuf_len(buf)); 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_buf(e, buf); 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(buf); 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return e; 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_req_success(struct eap_sm *sm, 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data) 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->state == FAILURE || data->state == FAILURE_REQ) { 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->peap_version == 0) { 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->tlv_request = TLV_REQ_SUCCESS; 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, PHASE2_TLV); 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, SUCCESS_REQ); 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_req_failure(struct eap_sm *sm, 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data) 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->state == FAILURE || data->state == FAILURE_REQ || 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->state == SUCCESS_REQ || data->tlv_request != TLV_REQ_NONE) { 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->peap_version == 0) { 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->tlv_request = TLV_REQ_FAILURE; 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, PHASE2_TLV); 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE_REQ); 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void * eap_peap_init(struct eap_sm *sm) 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data; 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data = os_zalloc(sizeof(*data)); 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data == NULL) 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->peap_version = EAP_PEAP_VERSION; 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->force_version = -1; 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->user && sm->user->force_version >= 0) { 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->force_version = sm->user->force_version; 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: forcing version %d", 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->force_version); 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->peap_version = data->force_version; 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->state = START; 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->crypto_binding = OPTIONAL_BINDING; 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_server_tls_ssl_init(sm, &data->ssl, 0)) { 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAP: Failed to initialize SSL."); 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_reset(sm, data); 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return data; 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_reset(struct eap_sm *sm, void *priv) 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data = priv; 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data == NULL) 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->phase2_priv && data->phase2_method) 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->phase2_method->reset(sm, data->phase2_priv); 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_server_tls_ssl_deinit(sm, &data->ssl); 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(data->pending_phase2_resp); 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->phase2_key); 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(data->soh_response); 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data); 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_peap_build_start(struct eap_sm *sm, 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data, u8 id) 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *req; 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_PEAP, 1, 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_CODE_REQUEST, id); 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (req == NULL) { 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "EAP-PEAP: Failed to allocate memory for" 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " request"); 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(req, EAP_TLS_FLAGS_START | data->peap_version); 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, PHASE1); 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return req; 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_peap_build_phase2_req(struct eap_sm *sm, 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data, 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 id) 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf, *encr_req, msgbuf; 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *req; 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t req_len; 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->phase2_method == NULL || data->phase2_priv == NULL) { 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Phase 2 method not ready"); 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = data->phase2_method->buildReq(sm, data->phase2_priv, id); 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->peap_version >= 2 && buf) 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = eap_peapv2_tlv_eap_payload(buf); 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req = wpabuf_head(buf); 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req_len = wpabuf_len(buf); 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: Encrypting Phase 2 data", 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req, req_len); 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->peap_version == 0 && 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->phase2_method->method != EAP_TYPE_TLV) { 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req += sizeof(struct eap_hdr); 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req_len -= sizeof(struct eap_hdr); 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_set(&msgbuf, req, req_len); 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt encr_req = eap_server_tls_encrypt(sm, &data->ssl, &msgbuf); 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(buf); 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return encr_req; 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef EAP_SERVER_TNC 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_peap_build_phase2_soh(struct eap_sm *sm, 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data, 2698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 id) 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf1, *buf, *encr_req, msgbuf; 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *req; 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t req_len; 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf1 = tncs_build_soh_request(); 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf1 == NULL) 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = eap_msg_alloc(EAP_VENDOR_MICROSOFT, 0x21, wpabuf_len(buf1), 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_CODE_REQUEST, id); 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) { 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(buf1); 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_buf(buf, buf1); 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(buf1); 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req = wpabuf_head(buf); 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req_len = wpabuf_len(buf); 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: Encrypting Phase 2 SOH data", 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req, req_len); 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req += sizeof(struct eap_hdr); 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req_len -= sizeof(struct eap_hdr); 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_set(&msgbuf, req, req_len); 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt encr_req = eap_server_tls_encrypt(sm, &data->ssl, &msgbuf); 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(buf); 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return encr_req; 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* EAP_SERVER_TNC */ 3048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_get_isk(struct eap_peap_data *data, 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *isk, size_t isk_len) 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t key_len; 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(isk, 0, isk_len); 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->phase2_key == NULL) 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_len = data->phase2_key_len; 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key_len > isk_len) 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_len = isk_len; 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(isk, data->phase2_key, key_len); 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int eap_peap_derive_cmk(struct eap_sm *sm, struct eap_peap_data *data) 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *tk; 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 isk[32], imck[60]; 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Tunnel key (TK) is the first 60 octets of the key generated by 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * phase 1 of PEAP (based on TLS). 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tk = eap_server_tls_derive_key(sm, &data->ssl, "client EAP encryption", 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_TLS_KEY_LEN); 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tk == NULL) 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: TK", tk, 60); 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_get_isk(data, isk, sizeof(isk)); 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: ISK", isk, sizeof(isk)); 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * IPMK Seed = "Inner Methods Compound Keys" | ISK 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TempKey = First 40 octets of TK 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * IPMK|CMK = PRF+(TempKey, IPMK Seed, 60) 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * (note: draft-josefsson-pppext-eap-tls-eap-10.txt includes a space 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * in the end of the label just before ISK; is that just a typo?) 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: TempKey", tk, 40); 3481f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (peap_prfplus(data->peap_version, tk, 40, 3491f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "Inner Methods Compound Keys", 3501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt isk, sizeof(isk), imck, sizeof(imck)) < 0) { 3511f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt os_free(tk); 3521f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 3531f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: IMCK (IPMKj)", 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt imck, sizeof(imck)); 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(tk); 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: fast-connect: IPMK|CMK = TK */ 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->ipmk, imck, 40); 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: IPMK (S-IPMKj)", data->ipmk, 40); 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->cmk, imck + 40, 20); 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: CMK (CMKj)", data->cmk, 20); 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_peap_build_phase2_tlv(struct eap_sm *sm, 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data, 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 id) 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf, *encr_req; 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t mlen; 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mlen = 6; /* Result TLV */ 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->crypto_binding != NO_BINDING) 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mlen += 60; /* Cryptobinding TLV */ 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef EAP_SERVER_TNC 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->soh_response) 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mlen += wpabuf_len(data->soh_response); 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* EAP_SERVER_TNC */ 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_TLV, mlen, 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_CODE_REQUEST, id); 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, 0x80); /* Mandatory */ 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, EAP_TLV_RESULT_TLV); 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Length */ 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, 2); 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Status */ 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, data->tlv_request == TLV_REQ_SUCCESS ? 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_TLV_RESULT_SUCCESS : EAP_TLV_RESULT_FAILURE); 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->peap_version == 0 && data->tlv_request == TLV_REQ_SUCCESS && 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->crypto_binding != NO_BINDING) { 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *mac; 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 eap_type = EAP_TYPE_PEAP; 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *addr[2]; 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t len[2]; 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 tlv_type; 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef EAP_SERVER_TNC 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->soh_response) { 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Adding MS-SOH " 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Response TLV"); 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_buf(buf, data->soh_response); 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(data->soh_response); 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->soh_response = NULL; 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* EAP_SERVER_TNC */ 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_peap_derive_cmk(sm, data) < 0 || 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt random_get_bytes(data->binding_nonce, 32)) { 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(buf); 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Compound_MAC: HMAC-SHA1-160(cryptobinding TLV | EAP type) */ 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt addr[0] = wpabuf_put(buf, 0); 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len[0] = 60; 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt addr[1] = &eap_type; 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len[1] = 1; 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv_type = EAP_TLV_CRYPTO_BINDING_TLV; 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->peap_version >= 2) 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv_type |= EAP_TLV_TYPE_MANDATORY; 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, tlv_type); 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_be16(buf, 56); 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, 0); /* Reserved */ 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, data->peap_version); /* Version */ 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, data->recv_version); /* RecvVersion */ 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_u8(buf, 0); /* SubType: 0 = Request, 1 = Response */ 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(buf, data->binding_nonce, 32); /* Nonce */ 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mac = wpabuf_put(buf, 20); /* Compound_MAC */ 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "EAP-PEAP: Compound_MAC CMK", 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->cmk, 20); 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "EAP-PEAP: Compound_MAC data 1", 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt addr[0], len[0]); 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "EAP-PEAP: Compound_MAC data 2", 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt addr[1], len[1]); 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hmac_sha1_vector(data->cmk, 20, 2, addr, len, mac); 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "EAP-PEAP: Compound_MAC", 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mac, SHA1_MAC_LEN); 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->crypto_binding_sent = 1; 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_buf_key(MSG_DEBUG, "EAP-PEAP: Encrypting Phase 2 TLV data", 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf); 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt encr_req = eap_server_tls_encrypt(sm, &data->ssl, buf); 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(buf); 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return encr_req; 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_peap_build_phase2_term(struct eap_sm *sm, 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data, 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 id, int success) 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *encr_req, msgbuf; 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t req_len; 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_hdr *hdr; 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req_len = sizeof(*hdr); 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = os_zalloc(req_len); 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (hdr == NULL) 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->code = success ? EAP_CODE_SUCCESS : EAP_CODE_FAILURE; 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->identifier = id; 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->length = host_to_be16(req_len); 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: Encrypting Phase 2 data", 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) hdr, req_len); 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_set(&msgbuf, hdr, req_len); 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt encr_req = eap_server_tls_encrypt(sm, &data->ssl, &msgbuf); 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(hdr); 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return encr_req; 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_peap_buildReq(struct eap_sm *sm, void *priv, u8 id) 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data = priv; 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->ssl.state == FRAG_ACK) { 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_server_tls_build_ack(id, EAP_TYPE_PEAP, 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->peap_version); 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->ssl.state == WAIT_FRAG_ACK) { 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_server_tls_build_msg(&data->ssl, EAP_TYPE_PEAP, 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->peap_version, id); 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (data->state) { 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case START: 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_peap_build_start(sm, data, id); 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE1: 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE1_ID2: 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->peap_version < 2 && 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tls_connection_established(sm->ssl_ctx, data->ssl.conn)) { 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Phase1 done, " 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "starting Phase2"); 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, PHASE2_START); 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_ID: 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_METHOD: 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(data->ssl.tls_out); 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ssl.tls_out_pos = 0; 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ssl.tls_out = eap_peap_build_phase2_req(sm, data, id); 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef EAP_SERVER_TNC 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_SOH: 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(data->ssl.tls_out); 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ssl.tls_out_pos = 0; 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ssl.tls_out = eap_peap_build_phase2_soh(sm, data, id); 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* EAP_SERVER_TNC */ 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_TLV: 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(data->ssl.tls_out); 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ssl.tls_out_pos = 0; 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ssl.tls_out = eap_peap_build_phase2_tlv(sm, data, id); 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case SUCCESS_REQ: 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(data->ssl.tls_out); 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ssl.tls_out_pos = 0; 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ssl.tls_out = eap_peap_build_phase2_term(sm, data, id, 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1); 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case FAILURE_REQ: 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(data->ssl.tls_out); 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ssl.tls_out_pos = 0; 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ssl.tls_out = eap_peap_build_phase2_term(sm, data, id, 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0); 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: %s - unexpected state %d", 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt __func__, data->state); 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_server_tls_build_msg(&data->ssl, EAP_TYPE_PEAP, 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->peap_version, id); 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic Boolean eap_peap_check(struct eap_sm *sm, void *priv, 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *respData) 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t len; 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_PEAP, respData, &len); 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos == NULL || len < 1) { 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAP: Invalid frame"); 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return TRUE; 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return FALSE; 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int eap_peap_phase2_init(struct eap_sm *sm, struct eap_peap_data *data, 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EapType eap_type) 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->phase2_priv && data->phase2_method) { 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->phase2_method->reset(sm, data->phase2_priv); 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->phase2_method = NULL; 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->phase2_priv = NULL; 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->phase2_method = eap_server_get_eap_method(EAP_VENDOR_IETF, 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_type); 5828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!data->phase2_method) 5838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->init_phase2 = 1; 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->phase2_priv = data->phase2_method->init(sm); 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->init_phase2 = 0; 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int eap_tlv_validate_cryptobinding(struct eap_sm *sm, 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data, 5948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *crypto_tlv, 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t crypto_tlv_len) 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 buf[61], mac[SHA1_MAC_LEN]; 5988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (crypto_tlv_len != 4 + 56) { 6018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Invalid cryptobinding TLV " 6028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "length %d", (int) crypto_tlv_len); 6038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = crypto_tlv; 6078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 4; /* TLV header */ 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[1] != data->peap_version) { 6098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Cryptobinding TLV Version " 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "mismatch (was %d; expected %d)", 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos[1], data->peap_version); 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos[3] != 1) { 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Unexpected Cryptobinding TLV " 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "SubType %d", pos[3]); 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 4; 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 32; /* Nonce */ 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Compound_MAC: HMAC-SHA1-160(cryptobinding TLV | EAP type) */ 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(buf, crypto_tlv, 60); 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(buf + 4 + 4 + 32, 0, 20); /* Compound_MAC */ 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf[60] = EAP_TYPE_PEAP; 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hmac_sha1(data->cmk, 20, buf, sizeof(buf), mac); 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(mac, pos, SHA1_MAC_LEN) != 0) { 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Invalid Compound_MAC in " 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "cryptobinding TLV"); 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: CMK", data->cmk, 20); 6338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-PEAP: Cryptobinding seed data", 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf, 61); 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Valid cryptobinding TLV received"); 6398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 6418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_process_phase2_tlv(struct eap_sm *sm, 6458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data, 6468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *in_data) 6478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 6498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t left; 6508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *result_tlv = NULL, *crypto_tlv = NULL; 6518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t result_tlv_len = 0, crypto_tlv_len = 0; 6528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tlv_type, mandatory, tlv_len; 6538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_TLV, in_data, &left); 6558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos == NULL) { 6568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Invalid EAP-TLV header"); 6578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 6588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Parse TLVs */ 6618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-PEAP: Received TLVs", pos, left); 6628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (left >= 4) { 6638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mandatory = !!(pos[0] & 0x80); 6648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv_type = pos[0] & 0x3f; 6658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv_type = (tlv_type << 8) | pos[1]; 6668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv_len = ((int) pos[2] << 8) | pos[3]; 6678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 4; 6688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt left -= 4; 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((size_t) tlv_len > left) { 6708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: TLV underrun " 6718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(tlv_len=%d left=%lu)", tlv_len, 6728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) left); 6738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 6748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 6758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (tlv_type) { 6778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EAP_TLV_RESULT_TLV: 6788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt result_tlv = pos; 6798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt result_tlv_len = tlv_len; 6808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 6818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EAP_TLV_CRYPTO_BINDING_TLV: 6828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt crypto_tlv = pos; 6838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt crypto_tlv_len = tlv_len; 6848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Unsupported TLV Type " 6878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "%d%s", tlv_type, 6888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mandatory ? " (mandatory)" : ""); 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (mandatory) { 6908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 6928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Ignore this TLV, but process other TLVs */ 6948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 6958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += tlv_len; 6988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt left -= tlv_len; 6998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (left) { 7018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Last TLV too short in " 7028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Request (left=%lu)", (unsigned long) left); 7038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 7048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 7058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Process supported TLVs */ 7088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (crypto_tlv && data->crypto_binding_sent) { 7098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-PEAP: Cryptobinding TLV", 7108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt crypto_tlv, crypto_tlv_len); 7118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_tlv_validate_cryptobinding(sm, data, crypto_tlv - 4, 7128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt crypto_tlv_len + 4) < 0) { 7138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 7148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 7158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->crypto_binding_used = 1; 7178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (!crypto_tlv && data->crypto_binding_sent && 7188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->crypto_binding == REQUIRE_BINDING) { 7198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: No cryptobinding TLV"); 7208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 7218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 7228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (result_tlv) { 7258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int status; 7268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const char *requested; 7278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-PEAP: Result TLV", 7298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt result_tlv, result_tlv_len); 7308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (result_tlv_len < 2) { 7318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAP: Too short Result TLV " 7328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(len=%lu)", 7338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) result_tlv_len); 7348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 7358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 7368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt requested = data->tlv_request == TLV_REQ_SUCCESS ? "Success" : 7388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Failure"; 7398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WPA_GET_BE16(result_tlv); 7408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status == EAP_TLV_RESULT_SUCCESS) { 7418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAP: TLV Result - Success " 7428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "- requested %s", requested); 7438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->tlv_request == TLV_REQ_SUCCESS) 7448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, SUCCESS); 7458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else 7468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 7478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (status == EAP_TLV_RESULT_FAILURE) { 7498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAP: TLV Result - Failure " 7508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "- requested %s", requested); 7518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 7528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 7538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAP: Unknown TLV Result " 7548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Status %d", status); 7558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 7568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef EAP_SERVER_TNC 7628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_process_phase2_soh(struct eap_sm *sm, 7638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data, 7648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *in_data) 7658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos, *vpos; 7678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t left; 7688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *soh_tlv = NULL; 7698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t soh_tlv_len = 0; 7708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tlv_type, mandatory, tlv_len, vtlv_len; 7718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 next_type; 7728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 vendor_id; 7738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = eap_hdr_validate(EAP_VENDOR_MICROSOFT, 0x21, in_data, &left); 7758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos == NULL) { 7768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Not a valid SoH EAP " 7778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Extensions Method header - skip TNC"); 7788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto auth_method; 7798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Parse TLVs */ 7828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-PEAP: Received TLVs (SoH)", pos, left); 7838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (left >= 4) { 7848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mandatory = !!(pos[0] & 0x80); 7858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv_type = pos[0] & 0x3f; 7868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv_type = (tlv_type << 8) | pos[1]; 7878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv_len = ((int) pos[2] << 8) | pos[3]; 7888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 4; 7898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt left -= 4; 7908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((size_t) tlv_len > left) { 7918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: TLV underrun " 7928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(tlv_len=%d left=%lu)", tlv_len, 7938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) left); 7948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 7958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 7968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (tlv_type) { 7988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EAP_TLV_VENDOR_SPECIFIC_TLV: 7998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tlv_len < 4) { 8008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Too short " 8018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "vendor specific TLV (len=%d)", 8028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (int) tlv_len); 8038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 8048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 8058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt vendor_id = WPA_GET_BE32(pos); 8088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (vendor_id != EAP_VENDOR_MICROSOFT) { 8098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (mandatory) { 8108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 8118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 8128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 8148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt vpos = pos + 4; 8178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mandatory = !!(vpos[0] & 0x80); 8188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv_type = vpos[0] & 0x3f; 8198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv_type = (tlv_type << 8) | vpos[1]; 8208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt vtlv_len = ((int) vpos[2] << 8) | vpos[3]; 8218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt vpos += 4; 8228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (vpos + vtlv_len > pos + left) { 8238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Vendor TLV " 8248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "underrun"); 8258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 8268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 8278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tlv_type == 1) { 8308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt soh_tlv = vpos; 8318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt soh_tlv_len = vtlv_len; 8328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 8338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Unsupported MS-TLV " 8368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Type %d%s", tlv_type, 8378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mandatory ? " (mandatory)" : ""); 8388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (mandatory) { 8398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 8408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 8418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Ignore this TLV, but process other TLVs */ 8438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 8448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 8458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Unsupported TLV Type " 8468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "%d%s", tlv_type, 8478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mandatory ? " (mandatory)" : ""); 8488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (mandatory) { 8498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 8508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 8518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Ignore this TLV, but process other TLVs */ 8538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 8548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += tlv_len; 8578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt left -= tlv_len; 8588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (left) { 8608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Last TLV too short in " 8618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Request (left=%lu)", (unsigned long) left); 8628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 8638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 8648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Process supported TLVs */ 8678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (soh_tlv) { 8688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int failure = 0; 8698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(data->soh_response); 8708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->soh_response = tncs_process_soh(soh_tlv, soh_tlv_len, 8718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &failure); 8728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (failure) { 8738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 8748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 8758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 8778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: No SoH TLV received"); 8788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 8798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 8808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtauth_method: 8838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, PHASE2_METHOD); 8848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next_type = sm->user->methods[0].method; 8858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->user_eap_method_index = 1; 8868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: try EAP type %d", next_type); 8878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_phase2_init(sm, data, next_type); 8888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 8898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* EAP_SERVER_TNC */ 8908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_process_phase2_response(struct eap_sm *sm, 8938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data, 8948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *in_data) 8958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 8968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 next_type = EAP_TYPE_NONE; 8978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct eap_hdr *hdr; 8988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 8998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t left; 9008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->state == PHASE2_TLV) { 9028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_process_phase2_tlv(sm, data, in_data); 9038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 9048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef EAP_SERVER_TNC 9078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->state == PHASE2_SOH) { 9088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_process_phase2_soh(sm, data, in_data); 9098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 9108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* EAP_SERVER_TNC */ 9128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->phase2_priv == NULL) { 9148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: %s - Phase2 not " 9158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "initialized?!", __func__); 9168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 9178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = wpabuf_head(in_data); 9208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (const u8 *) (hdr + 1); 9218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpabuf_len(in_data) > sizeof(*hdr) && *pos == EAP_TYPE_NAK) { 9238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt left = wpabuf_len(in_data) - sizeof(*hdr); 9248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-PEAP: Phase2 type Nak'ed; " 9258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "allowed types", pos + 1, left - 1); 9268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sm_process_nak(sm, pos + 1, left - 1); 9278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->user && sm->user_eap_method_index < EAP_MAX_METHODS && 9288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->user->methods[sm->user_eap_method_index].method != 9298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_TYPE_NONE) { 9308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next_type = sm->user->methods[ 9318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->user_eap_method_index++].method; 9328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: try EAP type %d", 9338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next_type); 9348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 9358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_req_failure(sm, data); 9368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next_type = EAP_TYPE_NONE; 9378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_phase2_init(sm, data, next_type); 9398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 9408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->phase2_method->check(sm, data->phase2_priv, in_data)) { 9438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Phase2 check() asked to " 9448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "ignore the packet"); 9458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 9468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->phase2_method->process(sm, data->phase2_priv, in_data); 9498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->method_pending == METHOD_PENDING_WAIT) { 9518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Phase2 method is in " 9528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "pending wait state - save decrypted response"); 9538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(data->pending_phase2_resp); 9548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->pending_phase2_resp = wpabuf_dup(in_data); 9558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!data->phase2_method->isDone(sm, data->phase2_priv)) 9588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 9598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!data->phase2_method->isSuccess(sm, data->phase2_priv)) { 9618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Phase2 method failed"); 9628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_req_failure(sm, data); 9638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next_type = EAP_TYPE_NONE; 9648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_phase2_init(sm, data, next_type); 9658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 9668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->phase2_key); 9698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->phase2_method->getKey) { 9708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->phase2_key = data->phase2_method->getKey( 9718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm, data->phase2_priv, &data->phase2_key_len); 9728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->phase2_key == NULL) { 9738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Phase2 getKey " 9748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "failed"); 9758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_req_failure(sm, data); 9768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_phase2_init(sm, data, EAP_TYPE_NONE); 9778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 9788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (data->state) { 9828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE1_ID2: 9838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_ID: 9848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_SOH: 9858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_user_get(sm, sm->identity, sm->identity_len, 1) != 0) { 9868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_ascii(MSG_DEBUG, "EAP_PEAP: Phase2 " 9878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Identity not found in the user " 9888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "database", 9898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->identity, sm->identity_len); 9908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_req_failure(sm, data); 9918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next_type = EAP_TYPE_NONE; 9928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 9938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef EAP_SERVER_TNC 9968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->state != PHASE2_SOH && sm->tnc && 9978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->peap_version == 0) { 9988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, PHASE2_SOH); 9998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Try to initialize " 10008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TNC (NAP SOH)"); 10018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next_type = EAP_TYPE_NONE; 10028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 10038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* EAP_SERVER_TNC */ 10058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, PHASE2_METHOD); 10078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next_type = sm->user->methods[0].method; 10088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->user_eap_method_index = 1; 10098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: try EAP type %d", next_type); 10108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 10118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_METHOD: 10128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_req_success(sm, data); 10138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt next_type = EAP_TYPE_NONE; 10148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 10158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case FAILURE: 10168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 10178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 10188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: %s - unexpected state %d", 10198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt __func__, data->state); 10208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 10218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_phase2_init(sm, data, next_type); 10248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 10258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_process_phase2(struct eap_sm *sm, 10288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data, 10298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpabuf *respData, 10308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *in_buf) 10318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 10328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *in_decrypted; 10338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct eap_hdr *hdr; 10348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t len; 10358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: received %lu bytes encrypted data for" 10378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " Phase 2", (unsigned long) wpabuf_len(in_buf)); 10388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->pending_phase2_resp) { 10408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Pending Phase 2 response - " 10418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "skip decryption and use old data"); 10428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_process_phase2_response(sm, data, 10438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->pending_phase2_resp); 10448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(data->pending_phase2_resp); 10458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->pending_phase2_resp = NULL; 10468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 10478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt in_decrypted = tls_connection_decrypt(sm->ssl_ctx, data->ssl.conn, 10508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt in_buf); 10518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (in_decrypted == NULL) { 10528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAP: Failed to decrypt Phase 2 " 10538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "data"); 10548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 10558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 10568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_buf_key(MSG_DEBUG, "EAP-PEAP: Decrypted Phase 2 EAP", 10598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt in_decrypted); 10608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->peap_version == 0 && data->state != PHASE2_TLV) { 10628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct eap_hdr *resp; 10638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_hdr *nhdr; 10648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *nbuf = 10658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_alloc(sizeof(struct eap_hdr) + 10668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_len(in_decrypted)); 10678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (nbuf == NULL) { 10688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(in_decrypted); 10698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 10708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp = wpabuf_head(respData); 10738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nhdr = wpabuf_put(nbuf, sizeof(*nhdr)); 10748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nhdr->code = resp->code; 10758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nhdr->identifier = resp->identifier; 10768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nhdr->length = host_to_be16(sizeof(struct eap_hdr) + 10778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_len(in_decrypted)); 10788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_buf(nbuf, in_decrypted); 10798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(in_decrypted); 10808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt in_decrypted = nbuf; 10828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (data->peap_version >= 2) { 10838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_tlv_hdr *tlv; 10848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *nmsg; 10858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpabuf_len(in_decrypted) < sizeof(*tlv) + sizeof(*hdr)) { 10878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAPv2: Too short Phase 2 " 10888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "EAP TLV"); 10898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(in_decrypted); 10908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 10918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tlv = wpabuf_mhead(in_decrypted); 10938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((be_to_host16(tlv->tlv_type) & EAP_TLV_TYPE_MASK) != 10948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_TLV_EAP_PAYLOAD_TLV) { 10958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAPv2: Not an EAP TLV"); 10968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(in_decrypted); 10978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 10988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sizeof(*tlv) + be_to_host16(tlv->length) > 11008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_len(in_decrypted)) { 11018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAPv2: Invalid EAP TLV " 11028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "length"); 11038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(in_decrypted); 11048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 11058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct eap_hdr *) (tlv + 1); 11078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (be_to_host16(hdr->length) > be_to_host16(tlv->length)) { 11088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAPv2: No room for full " 11098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "EAP packet in EAP TLV"); 11108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(in_decrypted); 11118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 11128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nmsg = wpabuf_alloc(be_to_host16(hdr->length)); 11158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (nmsg == NULL) { 11168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(in_decrypted); 11178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 11188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_data(nmsg, hdr, be_to_host16(hdr->length)); 11218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(in_decrypted); 11228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt in_decrypted = nmsg; 11238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = wpabuf_head(in_decrypted); 11268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpabuf_len(in_decrypted) < (int) sizeof(*hdr)) { 11278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAP: Too short Phase 2 " 11288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "EAP frame (len=%lu)", 11298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) wpabuf_len(in_decrypted)); 11308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(in_decrypted); 11318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_req_failure(sm, data); 11328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 11338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = be_to_host16(hdr->length); 11358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len > wpabuf_len(in_decrypted)) { 11368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAP: Length mismatch in " 11378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Phase 2 EAP frame (len=%lu hdr->length=%lu)", 11388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) wpabuf_len(in_decrypted), 11398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) len); 11408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(in_decrypted); 11418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_req_failure(sm, data); 11428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 11438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: received Phase 2: code=%d " 11458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "identifier=%d length=%lu", hdr->code, hdr->identifier, 11468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) len); 11478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (hdr->code) { 11488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EAP_CODE_RESPONSE: 11498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_process_phase2_response(sm, data, in_decrypted); 11508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 11518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EAP_CODE_SUCCESS: 11528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Phase 2 Success"); 11538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->state == SUCCESS_REQ) { 11548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, SUCCESS); 11558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 11578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EAP_CODE_FAILURE: 11588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Phase 2 Failure"); 11598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 11608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 11618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 11628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAP: Unexpected code=%d in " 11638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Phase 2 EAP header", hdr->code); 11648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 11658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(in_decrypted); 11688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int eap_peapv2_start_phase2(struct eap_sm *sm, 11728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data) 11738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *buf, *buf2; 11758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAPv2: Phase1 done, include first Phase2 " 11778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "payload in the same message"); 11788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, PHASE1_ID2); 11798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_peap_phase2_init(sm, data, EAP_TYPE_IDENTITY)) 11808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: which Id to use here? */ 11838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = data->phase2_method->buildReq(sm, data->phase2_priv, 6); 11848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) 11858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf2 = eap_peapv2_tlv_eap_payload(buf); 11888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf2 == NULL) 11898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_buf(MSG_DEBUG, "EAP-PEAPv2: Identity Request", buf2); 11928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = tls_connection_encrypt(sm->ssl_ctx, data->ssl.conn, 11948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf2); 11958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(buf2); 11968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf == NULL) { 11988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAPv2: Failed to encrypt Phase 2 " 11998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "data"); 12008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_buf(MSG_DEBUG, "EAP-PEAPv2: Encrypted Identity Request", 12048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf); 12058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Append TLS data into the pending buffer after the Server Finished */ 12078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpabuf_resize(&data->ssl.tls_out, wpabuf_len(buf)) < 0) { 12088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(buf); 12098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_put_buf(data->ssl.tls_out, buf); 12128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpabuf_free(buf); 12138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 12158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int eap_peap_process_version(struct eap_sm *sm, void *priv, 12198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int peer_version) 12208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data = priv; 12228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->recv_version = peer_version; 12248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->force_version >= 0 && peer_version != data->force_version) { 12258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-PEAP: peer did not select the forced" 12268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " version (forced=%d peer=%d) - reject", 12278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->force_version, peer_version); 12288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer_version < data->peap_version) { 12318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: peer ver=%d, own ver=%d; " 12328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "use version %d", 12338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer_version, data->peap_version, peer_version); 12348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->peap_version = peer_version; 12358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 12388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_process_msg(struct eap_sm *sm, void *priv, 12428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpabuf *respData) 12438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data = priv; 12458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (data->state) { 12478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE1: 12488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_server_tls_phase1(sm, &data->ssl) < 0) { 12498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 12508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 12518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->peap_version >= 2 && 12548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tls_connection_established(sm->ssl_ctx, data->ssl.conn)) { 12558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_peapv2_start_phase2(sm, data)) { 12568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 12578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 12588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 12618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_START: 12628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, PHASE2_ID); 12638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_phase2_init(sm, data, EAP_TYPE_IDENTITY); 12648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 12658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE1_ID2: 12668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_ID: 12678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_METHOD: 12688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_SOH: 12698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PHASE2_TLV: 12708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_process_phase2(sm, data, respData, data->ssl.tls_in); 12718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 12728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case SUCCESS_REQ: 12738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, SUCCESS); 12748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 12758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case FAILURE_REQ: 12768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 12778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 12788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 12798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Unexpected state %d in %s", 12808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->state, __func__); 12818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 12828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_peap_process(struct eap_sm *sm, void *priv, 12878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *respData) 12888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data = priv; 12908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_server_tls_process(sm, &data->ssl, respData, data, 12918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_TYPE_PEAP, eap_peap_process_version, 12928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_process_msg) < 0) 12938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_peap_state(data, FAILURE); 12948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic Boolean eap_peap_isDone(struct eap_sm *sm, void *priv) 12988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data = priv; 13008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return data->state == SUCCESS || data->state == FAILURE; 13018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 13028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * eap_peap_getKey(struct eap_sm *sm, void *priv, size_t *len) 13058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 13068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data = priv; 13078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *eapKeyData; 13088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->state != SUCCESS) 13108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 13118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->crypto_binding_used) { 13138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 csk[128]; 13148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 13158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Note: It looks like Microsoft implementation requires null 13168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * termination for this label while the one used for deriving 13178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * IPMK|CMK did not use null termination. 13188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 13191f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (peap_prfplus(data->peap_version, data->ipmk, 40, 13201f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "Session Key Generating Function", 13211f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt (u8 *) "\00", 1, csk, sizeof(csk)) < 0) 13221f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return NULL; 13238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-PEAP: CSK", csk, sizeof(csk)); 13248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eapKeyData = os_malloc(EAP_TLS_KEY_LEN); 13258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eapKeyData) { 13268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(eapKeyData, csk, EAP_TLS_KEY_LEN); 13278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = EAP_TLS_KEY_LEN; 13288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-PEAP: Derived key", 13298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eapKeyData, EAP_TLS_KEY_LEN); 13308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 13318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Failed to derive " 13328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "key"); 13338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eapKeyData; 13368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: PEAPv1 - different label in some cases */ 13398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eapKeyData = eap_server_tls_derive_key(sm, &data->ssl, 13408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "client EAP encryption", 13418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_TLS_KEY_LEN); 13428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eapKeyData) { 13438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = EAP_TLS_KEY_LEN; 13448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-PEAP: Derived key", 13458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eapKeyData, EAP_TLS_KEY_LEN); 13468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 13478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-PEAP: Failed to derive key"); 13488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eapKeyData; 13518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 13528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic Boolean eap_peap_isSuccess(struct eap_sm *sm, void *priv) 13558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 13568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peap_data *data = priv; 13578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return data->state == SUCCESS; 13588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 13598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint eap_server_peap_register(void) 13628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 13638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_method *eap; 13648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret; 13658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap = eap_server_method_alloc(EAP_SERVER_METHOD_INTERFACE_VERSION, 13678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_VENDOR_IETF, EAP_TYPE_PEAP, "PEAP"); 13688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap == NULL) 13698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->init = eap_peap_init; 13728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->reset = eap_peap_reset; 13738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->buildReq = eap_peap_buildReq; 13748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->check = eap_peap_check; 13758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->process = eap_peap_process; 13768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->isDone = eap_peap_isDone; 13778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->getKey = eap_peap_getKey; 13788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->isSuccess = eap_peap_isSuccess; 13798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = eap_server_method_register(eap); 13818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret) 13828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_server_method_free(eap); 13838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ret; 13848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1385