18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * EAP peer method: EAP-SIM (RFC 4186) 34530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt * Copyright (c) 2004-2012, 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 "pcsc_funcs.h" 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/milenage.h" 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/random.h" 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "eap_peer/eap_i.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "eap_config.h" 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "eap_common/eap_sim_common.h" 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct eap_sim_data { 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *ver_list; 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t ver_list_len; 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int selected_version; 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t min_num_chal, num_chal; 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 kc[3][EAP_SIM_KC_LEN]; 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 sres[3][EAP_SIM_SRES_LEN]; 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 nonce_mt[EAP_SIM_NONCE_MT_LEN], nonce_s[EAP_SIM_NONCE_S_LEN]; 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mk[EAP_SIM_MK_LEN]; 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 k_aut[EAP_SIM_K_AUT_LEN]; 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 k_encr[EAP_SIM_K_ENCR_LEN]; 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 msk[EAP_SIM_KEYING_DATA_LEN]; 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 emsk[EAP_EMSK_LEN]; 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 rand[3][GSM_RAND_LEN]; 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int num_id_req, num_notification; 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pseudonym; 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t pseudonym_len; 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *reauth_id; 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t reauth_id_len; 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int reauth; 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int counter, counter_too_small; 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *last_eap_identity; 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t last_eap_identity_len; 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum { 462271d3fdd5982d0e5e81cf9999a861bba933eacbDmitry Shmidt CONTINUE, RESULT_SUCCESS, SUCCESS, FAILURE 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } state; 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int result_ind, use_result_ind; 49ebd93af924f6e54fb4982b3312ff875a4896b62bDmitry Shmidt int use_pseudonym; 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifndef CONFIG_NO_STDOUT_DEBUG 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic const char * eap_sim_state_txt(int state) 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (state) { 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case CONTINUE: 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "CONTINUE"; 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case RESULT_SUCCESS: 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "RESULT_SUCCESS"; 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case SUCCESS: 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "SUCCESS"; 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case FAILURE: 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "FAILURE"; 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return "?"; 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_NO_STDOUT_DEBUG */ 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_sim_state(struct eap_sim_data *data, int state) 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: %s -> %s", 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_state_txt(data->state), 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_state_txt(state)); 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->state = state; 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void * eap_sim_init(struct eap_sm *sm) 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data; 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peer_config *config = eap_get_config(sm); 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data = os_zalloc(sizeof(*data)); 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data == NULL) 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (random_get_bytes(data->nonce_mt, EAP_SIM_NONCE_MT_LEN)) { 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Failed to get random data " 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "for NONCE_MT"); 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data); 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->min_num_chal = 2; 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (config && config->phase1) { 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt char *pos = os_strstr(config->phase1, "sim_min_num_chal="); 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pos) { 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->min_num_chal = atoi(pos + 17); 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->min_num_chal < 2 || data->min_num_chal > 3) { 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Invalid " 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "sim_min_num_chal configuration " 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(%lu, expected 2 or 3)", 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) data->min_num_chal); 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data); 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Set minimum number of " 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "challenges to %lu", 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) data->min_num_chal); 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->result_ind = os_strstr(config->phase1, "result_ind=1") != 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt NULL; 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 119ebd93af924f6e54fb4982b3312ff875a4896b62bDmitry Shmidt data->use_pseudonym = !sm->init_phase2; 120ebd93af924f6e54fb4982b3312ff875a4896b62bDmitry Shmidt if (config && config->anonymous_identity && data->use_pseudonym) { 1214530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt data->pseudonym = os_malloc(config->anonymous_identity_len); 1224530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt if (data->pseudonym) { 1234530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt os_memcpy(data->pseudonym, config->anonymous_identity, 1244530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt config->anonymous_identity_len); 1254530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt data->pseudonym_len = config->anonymous_identity_len; 1264530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt } 1274530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt } 1284530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_state(data, CONTINUE); 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return data; 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 135c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidtstatic void eap_sim_clear_keys(struct eap_sim_data *data, int reauth) 136c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt{ 137c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt if (!reauth) { 138c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memset(data->mk, 0, EAP_SIM_MK_LEN); 139c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memset(data->k_aut, 0, EAP_SIM_K_AUT_LEN); 140c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memset(data->k_encr, 0, EAP_SIM_K_ENCR_LEN); 141c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt } 142c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memset(data->kc, 0, 3 * EAP_SIM_KC_LEN); 143c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memset(data->sres, 0, 3 * EAP_SIM_SRES_LEN); 144c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memset(data->msk, 0, EAP_SIM_KEYING_DATA_LEN); 145c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memset(data->emsk, 0, EAP_EMSK_LEN); 146c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt} 147c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt 148c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_sim_deinit(struct eap_sm *sm, void *priv) 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data = priv; 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data) { 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->ver_list); 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->pseudonym); 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->reauth_id); 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->last_eap_identity); 157c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt eap_sim_clear_keys(data, 0); 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data); 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 163051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidtstatic int eap_sim_ext_sim_req(struct eap_sm *sm, struct eap_sim_data *data) 164051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt{ 165051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt char req[200], *pos, *end; 166051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt size_t i; 167051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 168051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Use external SIM processing"); 169051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt pos = req; 170051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt end = pos + sizeof(req); 171051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt pos += os_snprintf(pos, end - pos, "GSM-AUTH"); 172051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt for (i = 0; i < data->num_chal; i++) { 173051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt pos += os_snprintf(pos, end - pos, ":"); 174051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt pos += wpa_snprintf_hex(pos, end - pos, data->rand[i], 175051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt GSM_RAND_LEN); 176051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt } 177051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 178051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt eap_sm_request_sim(sm, req); 179051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt return 1; 180051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt} 181051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 182051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 183051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidtstatic int eap_sim_ext_sim_result(struct eap_sm *sm, struct eap_sim_data *data, 184051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt struct eap_peer_config *conf) 185051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt{ 186051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt char *resp, *pos; 187051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt size_t i; 188051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 189051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt wpa_printf(MSG_DEBUG, 190051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt "EAP-SIM: Use result from external SIM processing"); 191051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 192051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt resp = conf->external_sim_resp; 193051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt conf->external_sim_resp = NULL; 194051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 195051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (os_strncmp(resp, "GSM-AUTH:", 9) != 0) { 196051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Unrecognized external SIM processing response"); 197051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt os_free(resp); 198051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt return -1; 199051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt } 200051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 201051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt pos = resp + 9; 202051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt for (i = 0; i < data->num_chal; i++) { 203051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-SIM: RAND", 204051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt data->rand[i], GSM_RAND_LEN); 205051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 206051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (hexstr2bin(pos, data->kc[i], EAP_SIM_KC_LEN) < 0) 207051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt goto invalid; 208051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-SIM: Kc", 209051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt data->kc[i], EAP_SIM_KC_LEN); 210051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt pos += EAP_SIM_KC_LEN * 2; 211051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (*pos != ':') 212051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt goto invalid; 213051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt pos++; 214051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 215051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (hexstr2bin(pos, data->sres[i], EAP_SIM_SRES_LEN) < 0) 216051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt goto invalid; 217051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-SIM: SRES", 218051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt data->sres[i], EAP_SIM_SRES_LEN); 219051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt pos += EAP_SIM_SRES_LEN * 2; 220051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (i + 1 < data->num_chal) { 221051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (*pos != ':') 222051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt goto invalid; 223051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt pos++; 224051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt } 225051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt } 226051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 227051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt os_free(resp); 228051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt return 0; 229051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 230051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidtinvalid: 231051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Invalid external SIM processing GSM-AUTH response"); 232051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt os_free(resp); 233051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt return -1; 234051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt} 235051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 236051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int eap_sim_gsm_auth(struct eap_sm *sm, struct eap_sim_data *data) 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_peer_config *conf; 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: GSM authentication algorithm"); 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt conf = eap_get_config(sm); 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (conf == NULL) 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 246051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 247051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (sm->external_sim) { 248051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (conf->external_sim_resp) 249051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt return eap_sim_ext_sim_result(sm, data, conf); 250051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt else 251051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt return eap_sim_ext_sim_req(sm, data); 252051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt } 253051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 2541d6bf427f4769edb60865a3999d01eeb8f8fcb19Dmitry Shmidt#ifdef PCSC_FUNCS 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (conf->pcsc) { 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (scard_gsm_auth(sm->scard_ctx, data->rand[0], 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->sres[0], data->kc[0]) || 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt scard_gsm_auth(sm->scard_ctx, data->rand[1], 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->sres[1], data->kc[1]) || 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (data->num_chal > 2 && 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt scard_gsm_auth(sm->scard_ctx, data->rand[2], 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->sres[2], data->kc[2]))) { 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: GSM SIM " 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "authentication could not be completed"); 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2691d6bf427f4769edb60865a3999d01eeb8f8fcb19Dmitry Shmidt#endif /* PCSC_FUNCS */ 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_SIM_SIMULATOR 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (conf->password) { 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 opc[16], k[16]; 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const char *pos; 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t i; 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Use internal GSM-Milenage " 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "implementation for authentication"); 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (conf->password_len < 65) { 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: invalid GSM-Milenage " 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "password"); 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (const char *) conf->password; 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (hexstr2bin(pos, k, 16)) 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 32; 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (*pos != ':') 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos++; 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (hexstr2bin(pos, opc, 16)) 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (i = 0; i < data->num_chal; i++) { 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (gsm_milenage(opc, k, data->rand[i], 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->sres[i], data->kc[i])) { 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: " 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "GSM-Milenage authentication " 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "could not be completed"); 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-SIM: RAND", 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->rand[i], GSM_RAND_LEN); 3048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-SIM: SRES", 3058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->sres[i], EAP_SIM_SRES_LEN); 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "EAP-SIM: Kc", 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->kc[i], EAP_SIM_KC_LEN); 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_SIM_SIMULATOR */ 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_SIM_HARDCODED 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* These hardcoded Kc and SRES values are used for testing. RAND to 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * KC/SREC mapping is very bogus as far as real authentication is 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * concerned, but it is quite useful for cases where the AS is rotating 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the order of pre-configured values. */ 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt { 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t i; 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Use hardcoded Kc and SRES " 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "values for testing"); 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (i = 0; i < data->num_chal; i++) { 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->rand[i][0] == 0xaa) { 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->kc[i], 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7", 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_KC_LEN); 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->sres[i], "\xd1\xd2\xd3\xd4", 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_SRES_LEN); 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (data->rand[i][0] == 0xbb) { 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->kc[i], 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7", 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_KC_LEN); 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->sres[i], "\xe1\xe2\xe3\xe4", 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_SRES_LEN); 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->kc[i], 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7", 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_KC_LEN); 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->sres[i], "\xf1\xf2\xf3\xf4", 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_SRES_LEN); 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#else /* CONFIG_SIM_HARDCODED */ 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: No GSM authentication algorithm " 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "enabled"); 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_SIM_HARDCODED */ 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int eap_sim_supported_ver(int version) 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return version == EAP_SIM_VERSION; 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define CLEAR_PSEUDONYM 0x01 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define CLEAR_REAUTH_ID 0x02 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define CLEAR_EAP_ID 0x04 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3694530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidtstatic void eap_sim_clear_identities(struct eap_sm *sm, 3704530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt struct eap_sim_data *data, int id) 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3721f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if ((id & CLEAR_PSEUDONYM) && data->pseudonym) { 3731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: forgetting old pseudonym"); 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->pseudonym); 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->pseudonym = NULL; 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->pseudonym_len = 0; 377ebd93af924f6e54fb4982b3312ff875a4896b62bDmitry Shmidt if (data->use_pseudonym) 378ebd93af924f6e54fb4982b3312ff875a4896b62bDmitry Shmidt eap_set_anon_id(sm, NULL, 0); 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3801f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if ((id & CLEAR_REAUTH_ID) && data->reauth_id) { 3811f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: forgetting old reauth_id"); 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->reauth_id); 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth_id = NULL; 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth_id_len = 0; 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3861f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if ((id & CLEAR_EAP_ID) && data->last_eap_identity) { 3871f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: forgetting old eap_id"); 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->last_eap_identity); 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->last_eap_identity = NULL; 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->last_eap_identity_len = 0; 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 395c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidtstatic int eap_sim_learn_ids(struct eap_sm *sm, struct eap_sim_data *data, 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_attrs *attr) 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr->next_pseudonym) { 399c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt const u8 *identity = NULL; 400c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt size_t identity_len = 0; 401c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt const u8 *realm = NULL; 402c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt size_t realm_len = 0; 403c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt 404c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt wpa_hexdump_ascii(MSG_DEBUG, 405c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt "EAP-SIM: (encr) AT_NEXT_PSEUDONYM", 406c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt attr->next_pseudonym, 407c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt attr->next_pseudonym_len); 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->pseudonym); 409c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt /* Look for the realm of the permanent identity */ 410c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt identity = eap_get_config_identity(sm, &identity_len); 411c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt if (identity) { 412c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt for (realm = identity, realm_len = identity_len; 413c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt realm_len > 0; realm_len--, realm++) { 414c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt if (*realm == '@') 415c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt break; 416c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt } 417c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt } 418c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt data->pseudonym = os_malloc(attr->next_pseudonym_len + 419c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt realm_len); 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->pseudonym == NULL) { 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: (encr) No memory for " 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "next pseudonym"); 423c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt data->pseudonym_len = 0; 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->pseudonym, attr->next_pseudonym, 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt attr->next_pseudonym_len); 428c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt if (realm_len) { 429c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt os_memcpy(data->pseudonym + attr->next_pseudonym_len, 430c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt realm, realm_len); 431c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt } 432c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt data->pseudonym_len = attr->next_pseudonym_len + realm_len; 433ebd93af924f6e54fb4982b3312ff875a4896b62bDmitry Shmidt if (data->use_pseudonym) 434ebd93af924f6e54fb4982b3312ff875a4896b62bDmitry Shmidt eap_set_anon_id(sm, data->pseudonym, 435ebd93af924f6e54fb4982b3312ff875a4896b62bDmitry Shmidt data->pseudonym_len); 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr->next_reauth_id) { 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->reauth_id); 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth_id = os_malloc(attr->next_reauth_id_len); 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->reauth_id == NULL) { 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: (encr) No memory for " 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "next reauth_id"); 444c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt data->reauth_id_len = 0; 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->reauth_id, attr->next_reauth_id, 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt attr->next_reauth_id_len); 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth_id_len = attr->next_reauth_id_len; 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_ascii(MSG_DEBUG, 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "EAP-SIM: (encr) AT_NEXT_REAUTH_ID", 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth_id, 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth_id_len); 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_sim_client_error(struct eap_sim_data *data, u8 id, 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int err) 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_msg *msg; 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_state(data, FAILURE); 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_id_req = 0; 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_notification = 0; 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4694530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Send Client-Error (error code %d)", 4704530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt err); 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg = eap_sim_msg_init(EAP_CODE_RESPONSE, id, EAP_TYPE_SIM, 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_SUBTYPE_CLIENT_ERROR); 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add(msg, EAP_SIM_AT_CLIENT_ERROR_CODE, err, NULL, 0); 474c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt return eap_sim_msg_finish(msg, EAP_TYPE_SIM, NULL, NULL, 0); 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_sim_response_start(struct eap_sm *sm, 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data, u8 id, 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum eap_sim_id_req id_req) 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *identity = NULL; 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t identity_len = 0; 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_msg *msg; 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth = 0; 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (id_req == ANY_ID && data->reauth_id) { 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity = data->reauth_id; 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity_len = data->reauth_id_len; 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth = 1; 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if ((id_req == ANY_ID || id_req == FULLAUTH_ID) && 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->pseudonym) { 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity = data->pseudonym; 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity_len = data->pseudonym_len; 4954530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt eap_sim_clear_identities(sm, data, CLEAR_REAUTH_ID); 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (id_req != NO_ID_REQ) { 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity = eap_get_config_identity(sm, &identity_len); 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (identity) { 4994530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt eap_sim_clear_identities(sm, data, CLEAR_PSEUDONYM | 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt CLEAR_REAUTH_ID); 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (id_req != NO_ID_REQ) 5044530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt eap_sim_clear_identities(sm, data, CLEAR_EAP_ID); 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "Generating EAP-SIM Start (id=%d)", id); 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg = eap_sim_msg_init(EAP_CODE_RESPONSE, id, 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_TYPE_SIM, EAP_SIM_SUBTYPE_START); 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!data->reauth) { 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, " AT_NONCE_MT", 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->nonce_mt, EAP_SIM_NONCE_MT_LEN); 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add(msg, EAP_SIM_AT_NONCE_MT, 0, 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->nonce_mt, EAP_SIM_NONCE_MT_LEN); 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " AT_SELECTED_VERSION %d", 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->selected_version); 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add(msg, EAP_SIM_AT_SELECTED_VERSION, 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->selected_version, NULL, 0); 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (identity) { 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_ascii(MSG_DEBUG, " AT_IDENTITY", 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity, identity_len); 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add(msg, EAP_SIM_AT_IDENTITY, identity_len, 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity, identity_len); 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 527c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt return eap_sim_msg_finish(msg, EAP_TYPE_SIM, NULL, NULL, 0); 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_sim_response_challenge(struct eap_sim_data *data, 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 id) 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_msg *msg; 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "Generating EAP-SIM Challenge (id=%d)", id); 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg = eap_sim_msg_init(EAP_CODE_RESPONSE, id, EAP_TYPE_SIM, 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_SUBTYPE_CHALLENGE); 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->use_result_ind) { 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " AT_RESULT_IND"); 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add(msg, EAP_SIM_AT_RESULT_IND, 0, NULL, 0); 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " AT_MAC"); 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add_mac(msg, EAP_SIM_AT_MAC); 545c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt return eap_sim_msg_finish(msg, EAP_TYPE_SIM, data->k_aut, 546c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt (u8 *) data->sres, 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_chal * EAP_SIM_SRES_LEN); 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_sim_response_reauth(struct eap_sim_data *data, 5524530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt u8 id, int counter_too_small, 5534530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt const u8 *nonce_s) 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_msg *msg; 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int counter; 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "Generating EAP-SIM Reauthentication (id=%d)", 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt id); 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg = eap_sim_msg_init(EAP_CODE_RESPONSE, id, EAP_TYPE_SIM, 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_SUBTYPE_REAUTHENTICATION); 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " AT_IV"); 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " AT_ENCR_DATA"); 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add_encr_start(msg, EAP_SIM_AT_IV, EAP_SIM_AT_ENCR_DATA); 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (counter_too_small) { 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " *AT_COUNTER_TOO_SMALL"); 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add(msg, EAP_SIM_AT_COUNTER_TOO_SMALL, 0, NULL, 0); 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt counter = data->counter_too_small; 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt counter = data->counter; 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " *AT_COUNTER %d", counter); 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add(msg, EAP_SIM_AT_COUNTER, counter, NULL, 0); 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_sim_msg_add_encr_end(msg, data->k_encr, EAP_SIM_AT_PADDING)) { 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Failed to encrypt " 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "AT_ENCR_DATA"); 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_free(msg); 5808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->use_result_ind) { 5838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " AT_RESULT_IND"); 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add(msg, EAP_SIM_AT_RESULT_IND, 0, NULL, 0); 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " AT_MAC"); 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add_mac(msg, EAP_SIM_AT_MAC); 588c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt return eap_sim_msg_finish(msg, EAP_TYPE_SIM, data->k_aut, nonce_s, 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_NONCE_S_LEN); 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_sim_response_notification(struct eap_sim_data *data, 5948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 id, u16 notification) 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_msg *msg; 5978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *k_aut = (notification & 0x4000) == 0 ? data->k_aut : NULL; 5988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "Generating EAP-SIM Notification (id=%d)", id); 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt msg = eap_sim_msg_init(EAP_CODE_RESPONSE, id, 6018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_TYPE_SIM, EAP_SIM_SUBTYPE_NOTIFICATION); 6028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (k_aut && data->reauth) { 6038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " AT_IV"); 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " AT_ENCR_DATA"); 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add_encr_start(msg, EAP_SIM_AT_IV, 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_AT_ENCR_DATA); 6078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " *AT_COUNTER %d", data->counter); 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add(msg, EAP_SIM_AT_COUNTER, data->counter, 6098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt NULL, 0); 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_sim_msg_add_encr_end(msg, data->k_encr, 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_AT_PADDING)) { 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Failed to encrypt " 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "AT_ENCR_DATA"); 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_free(msg); 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (k_aut) { 6198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, " AT_MAC"); 6208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_msg_add_mac(msg, EAP_SIM_AT_MAC); 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 622c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt return eap_sim_msg_finish(msg, EAP_TYPE_SIM, k_aut, (u8 *) "", 0); 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_sim_process_start(struct eap_sm *sm, 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data, u8 id, 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_attrs *attr) 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int selected_version = -1, id_error; 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t i; 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos; 6338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: subtype Start"); 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr->version_list == NULL) { 6368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: No AT_VERSION_LIST in " 6378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "SIM/Start"); 6388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 6398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNSUPPORTED_VERSION); 6408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->ver_list); 6438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ver_list = os_malloc(attr->version_list_len); 6448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->ver_list == NULL) { 6458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Failed to allocate " 6468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "memory for version list"); 6478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 6488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 6498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->ver_list, attr->version_list, attr->version_list_len); 6518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ver_list_len = attr->version_list_len; 6528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = data->ver_list; 6538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (i = 0; i < data->ver_list_len / 2; i++) { 6548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ver = pos[0] * 256 + pos[1]; 6558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 6568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_sim_supported_ver(ver)) { 6578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt selected_version = ver; 6588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 6598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (selected_version < 0) { 6628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: Could not find a supported " 6638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "version"); 6648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 6658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNSUPPORTED_VERSION); 6668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Selected Version %d", 6688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt selected_version); 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->selected_version = selected_version; 6708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt id_error = 0; 6728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (attr->id_req) { 6738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case NO_ID_REQ: 6748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 6758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case ANY_ID: 6768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->num_id_req > 0) 6778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt id_error++; 6788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_id_req++; 6798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 6808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case FULLAUTH_ID: 6818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->num_id_req > 1) 6828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt id_error++; 6838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_id_req++; 6848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case PERMANENT_ID: 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->num_id_req > 2) 6878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt id_error++; 6888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_id_req++; 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 6908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (id_error) { 6928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: Too many ID requests " 6938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "used within one authentication"); 6948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 6958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 6968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_response_start(sm, data, id, attr->id_req); 6998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_sim_process_challenge(struct eap_sm *sm, 7038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data, 7048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 id, 7058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpabuf *reqData, 7068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_attrs *attr) 7078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *identity; 7098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t identity_len; 7108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_attrs eattr; 711051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt int res; 7128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: subtype Challenge"); 7148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth = 0; 7158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!attr->mac || !attr->rand) { 7168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Challenge message " 7178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "did not include%s%s", 7188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !attr->mac ? " AT_MAC" : "", 7198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !attr->rand ? " AT_RAND" : ""); 7208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 7218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 7228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: %lu challenges", 7258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) attr->num_chal); 7268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr->num_chal < data->min_num_chal) { 7278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: Insufficient number of " 7288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "challenges (%lu)", (unsigned long) attr->num_chal); 7298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 7308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_INSUFFICIENT_NUM_OF_CHAL); 7318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr->num_chal > 3) { 7338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: Too many challenges " 7348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(%lu)", (unsigned long) attr->num_chal); 7358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 7368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 7378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Verify that RANDs are different */ 7408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(attr->rand, attr->rand + GSM_RAND_LEN, 7418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt GSM_RAND_LEN) == 0 || 7428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (attr->num_chal > 2 && 7438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (os_memcmp(attr->rand, attr->rand + 2 * GSM_RAND_LEN, 7448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt GSM_RAND_LEN) == 0 || 7458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(attr->rand + GSM_RAND_LEN, 7468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt attr->rand + 2 * GSM_RAND_LEN, 7478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt GSM_RAND_LEN) == 0))) { 7488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: Same RAND used multiple times"); 7498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 7508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_RAND_NOT_FRESH); 7518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->rand, attr->rand, attr->num_chal * GSM_RAND_LEN); 7548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_chal = attr->num_chal; 755051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt 756051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt res = eap_sim_gsm_auth(sm, data); 757051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (res > 0) { 758051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Wait for external SIM processing"); 759051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt return NULL; 760051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt } 761051af73b8f8014eff33330aead0f36944b3403e6Dmitry Shmidt if (res) { 7628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: GSM authentication failed"); 7638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 7648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 7658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->last_eap_identity) { 7678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity = data->last_eap_identity; 7688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity_len = data->last_eap_identity_len; 7698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (data->pseudonym) { 7708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity = data->pseudonym; 7718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity_len = data->pseudonym_len; 7728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 7738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt identity = eap_get_config_identity(sm, &identity_len); 7748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_ascii(MSG_DEBUG, "EAP-SIM: Selected identity for MK " 7758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "derivation", identity, identity_len); 7768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_derive_mk(identity, identity_len, data->nonce_mt, 7778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->selected_version, data->ver_list, 7788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->ver_list_len, data->num_chal, 7798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (const u8 *) data->kc, data->mk); 7808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_derive_keys(data->mk, data->k_encr, data->k_aut, data->msk, 7818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->emsk); 7828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_sim_verify_mac(data->k_aut, reqData, attr->mac, data->nonce_mt, 7838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_NONCE_MT_LEN)) { 7848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Challenge message " 7858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "used invalid AT_MAC"); 7868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 7878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 7888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7901f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* Old reauthentication identity must not be used anymore. In 7911f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * other words, if no new reauth identity is received, full 7921f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * authentication will be used on next reauthentication (using 7931f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * pseudonym identity or permanent identity). */ 7944530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt eap_sim_clear_identities(sm, data, CLEAR_REAUTH_ID | CLEAR_EAP_ID); 7958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr->encr_data) { 7978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *decrypted; 7988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt decrypted = eap_sim_parse_encr(data->k_encr, attr->encr_data, 7998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt attr->encr_data_len, attr->iv, 8008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &eattr, 0); 8018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (decrypted == NULL) { 8028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error( 8038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data, id, EAP_SIM_UNABLE_TO_PROCESS_PACKET); 8048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 805c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt eap_sim_learn_ids(sm, data, &eattr); 8068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(decrypted); 8078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->result_ind && attr->result_ind) 8108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->use_result_ind = 1; 8118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8122271d3fdd5982d0e5e81cf9999a861bba933eacbDmitry Shmidt if (data->state != FAILURE) { 8138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_state(data, data->use_result_ind ? 8148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RESULT_SUCCESS : SUCCESS); 8158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_id_req = 0; 8188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_notification = 0; 8198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* RFC 4186 specifies that counter is initialized to one after 8208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * fullauth, but initializing it to zero makes it easier to implement 8218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * reauth verification. */ 8228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->counter = 0; 8238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_response_challenge(data, id); 8248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 8258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int eap_sim_process_notification_reauth(struct eap_sim_data *data, 8288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_attrs *attr) 8298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 8308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_attrs eattr; 8318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *decrypted; 8328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr->encr_data == NULL || attr->iv == NULL) { 8348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Notification message after " 8358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "reauth did not include encrypted data"); 8368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 8378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt decrypted = eap_sim_parse_encr(data->k_encr, attr->encr_data, 8408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt attr->encr_data_len, attr->iv, &eattr, 8418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0); 8428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (decrypted == NULL) { 8438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Failed to parse encrypted " 8448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "data from notification message"); 8458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 8468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eattr.counter < 0 || (size_t) eattr.counter != data->counter) { 8498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Counter in notification " 8508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "message does not match with counter in reauth " 8518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "message"); 8528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(decrypted); 8538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 8548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(decrypted); 8578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 8588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 8598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int eap_sim_process_notification_auth(struct eap_sim_data *data, 8628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpabuf *reqData, 8638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_attrs *attr) 8648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 8658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr->mac == NULL) { 8668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: no AT_MAC in after_auth " 8678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Notification message"); 8688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 8698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_sim_verify_mac(data->k_aut, reqData, attr->mac, (u8 *) "", 0)) 8728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt { 8738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Notification message " 8748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "used invalid AT_MAC"); 8758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 8768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->reauth && 8798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_process_notification_reauth(data, attr)) { 8808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Invalid notification " 8818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "message after reauth"); 8828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 8838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 8868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 8878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_sim_process_notification( 8908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sm *sm, struct eap_sim_data *data, u8 id, 8918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpabuf *reqData, struct eap_sim_attrs *attr) 8928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 8938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: subtype Notification"); 8948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->num_notification > 0) { 8958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: too many notification " 8968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "rounds (only one allowed)"); 8978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 8988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 8998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_notification++; 9018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr->notification == -1) { 9028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: no AT_NOTIFICATION in " 9038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Notification message"); 9048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 9058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 9068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((attr->notification & 0x4000) == 0 && 9098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_process_notification_auth(data, reqData, attr)) { 9108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 9118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 9128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_report_notification(sm->msg_ctx, attr->notification, 0); 9158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr->notification >= 0 && attr->notification < 32768) { 9168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_state(data, FAILURE); 9178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (attr->notification == EAP_SIM_SUCCESS && 9188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->state == RESULT_SUCCESS) 9198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_state(data, SUCCESS); 9208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_response_notification(data, id, attr->notification); 9218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_sim_process_reauthentication( 9258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sm *sm, struct eap_sim_data *data, u8 id, 9268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpabuf *reqData, struct eap_sim_attrs *attr) 9278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 9288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_attrs eattr; 9298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *decrypted; 9308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: subtype Reauthentication"); 9328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->reauth_id == NULL) { 9348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Server is trying " 9358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "reauthentication, but no reauth_id available"); 9368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 9378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 9388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth = 1; 9418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_sim_verify_mac(data->k_aut, reqData, attr->mac, (u8 *) "", 0)) 9428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt { 9438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Reauthentication " 9448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "did not have valid AT_MAC"); 9458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 9468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 9478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (attr->encr_data == NULL || attr->iv == NULL) { 9508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Reauthentication " 9518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "message did not include encrypted data"); 9528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 9538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 9548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt decrypted = eap_sim_parse_encr(data->k_encr, attr->encr_data, 9578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt attr->encr_data_len, attr->iv, &eattr, 9588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0); 9598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (decrypted == NULL) { 9608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Failed to parse encrypted " 9618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "data from reauthentication message"); 9628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 9638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 9648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eattr.nonce_s == NULL || eattr.counter < 0) { 9678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: (encr) No%s%s in reauth packet", 9688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt !eattr.nonce_s ? " AT_NONCE_S" : "", 9698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eattr.counter < 0 ? " AT_COUNTER" : ""); 9708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(decrypted); 9718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return eap_sim_client_error(data, id, 9728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 9738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eattr.counter < 0 || (size_t) eattr.counter <= data->counter) { 9765a1480c7c46c4236d93bfd303dde32062bee04acDmitry Shmidt struct wpabuf *res; 9778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: (encr) Invalid counter " 9788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(%d <= %d)", eattr.counter, data->counter); 9798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->counter_too_small = eattr.counter; 9805a1480c7c46c4236d93bfd303dde32062bee04acDmitry Shmidt 9818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Reply using Re-auth w/ AT_COUNTER_TOO_SMALL. The current 9828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * reauth_id must not be used to start a new reauthentication. 9838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * However, since it was used in the last EAP-Response-Identity 9848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * packet, it has to saved for the following fullauth to be 9858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * used in MK derivation. */ 9868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(data->last_eap_identity); 9878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->last_eap_identity = data->reauth_id; 9888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->last_eap_identity_len = data->reauth_id_len; 9898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth_id = NULL; 9908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth_id_len = 0; 9915a1480c7c46c4236d93bfd303dde32062bee04acDmitry Shmidt 9925a1480c7c46c4236d93bfd303dde32062bee04acDmitry Shmidt res = eap_sim_response_reauth(data, id, 1, eattr.nonce_s); 9938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(decrypted); 9945a1480c7c46c4236d93bfd303dde32062bee04acDmitry Shmidt 9955a1480c7c46c4236d93bfd303dde32062bee04acDmitry Shmidt return res; 9968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->counter = eattr.counter; 9988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data->nonce_s, eattr.nonce_s, EAP_SIM_NONCE_S_LEN); 10008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-SIM: (encr) AT_NONCE_S", 10018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->nonce_s, EAP_SIM_NONCE_S_LEN); 10028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_derive_keys_reauth(data->counter, 10048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->reauth_id, data->reauth_id_len, 10058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->nonce_s, data->mk, data->msk, 10068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->emsk); 10074530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt eap_sim_clear_identities(sm, data, CLEAR_REAUTH_ID | CLEAR_EAP_ID); 1008c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt eap_sim_learn_ids(sm, data, &eattr); 10098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->result_ind && attr->result_ind) 10118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->use_result_ind = 1; 10128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10132271d3fdd5982d0e5e81cf9999a861bba933eacbDmitry Shmidt if (data->state != FAILURE) { 10148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_state(data, data->use_result_ind ? 10158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RESULT_SUCCESS : SUCCESS); 10168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_id_req = 0; 10198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_notification = 0; 10208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->counter > EAP_SIM_MAX_FAST_REAUTHS) { 10218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Maximum number of " 10228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "fast reauths performed - force fullauth"); 10234530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt eap_sim_clear_identities(sm, data, 10244530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt CLEAR_REAUTH_ID | CLEAR_EAP_ID); 10258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(decrypted); 10274530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt return eap_sim_response_reauth(data, id, 0, data->nonce_s); 10288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 10298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpabuf * eap_sim_process(struct eap_sm *sm, void *priv, 10328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_method_ret *ret, 10338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpabuf *reqData) 10348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 10358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data = priv; 10368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct eap_hdr *req; 10378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 subtype, id; 10388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpabuf *res; 10398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 10408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_attrs attr; 10418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t len; 10428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_buf(MSG_DEBUG, "EAP-SIM: EAP data", reqData); 10448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_get_config_identity(sm, &len) == NULL) { 10458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "EAP-SIM: Identity not configured"); 10468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sm_request_identity(sm); 10478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->ignore = TRUE; 10488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 10498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_SIM, reqData, &len); 1052cc00d5dc8483e32158b2ba61ea44b0c38d790ed7Dmitry Shmidt if (pos == NULL || len < 3) { 10538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->ignore = TRUE; 10548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 10558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt req = wpabuf_head(reqData); 10578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt id = req->identifier; 10588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = be_to_host16(req->length); 10598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->ignore = FALSE; 10618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->methodState = METHOD_MAY_CONT; 10628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->decision = DECISION_FAIL; 10638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->allowNotifications = TRUE; 10648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subtype = *pos++; 10668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Subtype=%d", subtype); 10678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; /* Reserved */ 10688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap_sim_parse_attr(pos, wpabuf_head_u8(reqData) + len, &attr, 0, 10708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0)) { 10718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = eap_sim_client_error(data, id, 10728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 10738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto done; 10748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (subtype) { 10778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EAP_SIM_SUBTYPE_START: 10788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = eap_sim_process_start(sm, data, id, &attr); 10798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 10808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EAP_SIM_SUBTYPE_CHALLENGE: 10818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = eap_sim_process_challenge(sm, data, id, reqData, &attr); 10828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 10838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EAP_SIM_SUBTYPE_NOTIFICATION: 10848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = eap_sim_process_notification(sm, data, id, reqData, 10858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &attr); 10868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 10878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EAP_SIM_SUBTYPE_REAUTHENTICATION: 10888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = eap_sim_process_reauthentication(sm, data, id, reqData, 10898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &attr); 10908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 10918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EAP_SIM_SUBTYPE_CLIENT_ERROR: 10928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: subtype Client-Error"); 10938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = eap_sim_client_error(data, id, 10948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 10958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 10968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 10978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "EAP-SIM: Unknown subtype=%d", subtype); 10988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = eap_sim_client_error(data, id, 10998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_SIM_UNABLE_TO_PROCESS_PACKET); 11008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 11018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtdone: 11048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->state == FAILURE) { 11058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->decision = DECISION_FAIL; 11068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->methodState = METHOD_DONE; 11078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (data->state == SUCCESS) { 11088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->decision = data->use_result_ind ? 11098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DECISION_UNCOND_SUCC : DECISION_COND_SUCC; 11108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->methodState = data->use_result_ind ? 11118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt METHOD_DONE : METHOD_MAY_CONT; 11122271d3fdd5982d0e5e81cf9999a861bba933eacbDmitry Shmidt } else if (data->state == RESULT_SUCCESS) 11138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->methodState = METHOD_CONT; 11148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret->methodState == METHOD_DONE) { 11168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret->allowNotifications = FALSE; 11178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return res; 11208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic Boolean eap_sim_has_reauth_data(struct eap_sm *sm, void *priv) 11248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data = priv; 11268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return data->pseudonym || data->reauth_id; 11278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void eap_sim_deinit_for_reauth(struct eap_sm *sm, void *priv) 11318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data = priv; 11334530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt eap_sim_clear_identities(sm, data, CLEAR_EAP_ID); 11348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->use_result_ind = 0; 1135c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt eap_sim_clear_keys(data, 1); 11368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void * eap_sim_init_for_reauth(struct eap_sm *sm, void *priv) 11408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data = priv; 11428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (random_get_bytes(data->nonce_mt, EAP_SIM_NONCE_MT_LEN)) { 11438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "EAP-SIM: Failed to get random data " 11448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "for NONCE_MT"); 1145d7ff03d48f825360eec2a371e3361306f2fd721bDmitry Shmidt eap_sim_deinit(sm, data); 11468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 11478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_id_req = 0; 11498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data->num_notification = 0; 11508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap_sim_state(data, CONTINUE); 11518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return priv; 11528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic const u8 * eap_sim_get_identity(struct eap_sm *sm, void *priv, 11568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t *len) 11578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data = priv; 11598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->reauth_id) { 11618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = data->reauth_id_len; 11628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return data->reauth_id; 11638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->pseudonym) { 11668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = data->pseudonym_len; 11678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return data->pseudonym; 11688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 11718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic Boolean eap_sim_isKeyAvailable(struct eap_sm *sm, void *priv) 11758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data = priv; 11778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return data->state == SUCCESS; 11788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * eap_sim_getKey(struct eap_sm *sm, void *priv, size_t *len) 11828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data = priv; 11848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *key; 11858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->state != SUCCESS) 11878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 11888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key = os_malloc(EAP_SIM_KEYING_DATA_LEN); 11908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key == NULL) 11918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 11928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = EAP_SIM_KEYING_DATA_LEN; 11948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(key, data->msk, EAP_SIM_KEYING_DATA_LEN); 11958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return key; 11978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1200f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidtstatic u8 * eap_sim_get_session_id(struct eap_sm *sm, void *priv, size_t *len) 1201f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt{ 1202f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt struct eap_sim_data *data = priv; 1203f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt u8 *id; 1204f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1205f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (data->state != SUCCESS) 1206f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return NULL; 1207f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1208f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt *len = 1 + data->num_chal * GSM_RAND_LEN + EAP_SIM_NONCE_MT_LEN; 1209f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt id = os_malloc(*len); 1210f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (id == NULL) 1211f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return NULL; 1212f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1213f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt id[0] = EAP_TYPE_SIM; 1214f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_memcpy(id + 1, data->rand, data->num_chal * GSM_RAND_LEN); 1215f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_memcpy(id + 1 + data->num_chal * GSM_RAND_LEN, data->nonce_mt, 1216f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt EAP_SIM_NONCE_MT_LEN); 1217f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "EAP-SIM: Derived Session-Id", id, *len); 1218f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1219f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return id; 1220f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt} 1221f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1222f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 12238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * eap_sim_get_emsk(struct eap_sm *sm, void *priv, size_t *len) 12248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_sim_data *data = priv; 12268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *key; 12278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data->state != SUCCESS) 12298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 12308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key = os_malloc(EAP_EMSK_LEN); 12328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key == NULL) 12338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 12348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = EAP_EMSK_LEN; 12368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(key, data->emsk, EAP_EMSK_LEN); 12378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return key; 12398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint eap_peer_sim_register(void) 12438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct eap_method *eap; 12458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap = eap_peer_method_alloc(EAP_PEER_METHOD_INTERFACE_VERSION, 12478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EAP_VENDOR_IETF, EAP_TYPE_SIM, "SIM"); 12488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (eap == NULL) 12498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->init = eap_sim_init; 12528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->deinit = eap_sim_deinit; 12538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->process = eap_sim_process; 12548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->isKeyAvailable = eap_sim_isKeyAvailable; 12558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->getKey = eap_sim_getKey; 1256f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt eap->getSessionId = eap_sim_get_session_id; 12578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->has_reauth_data = eap_sim_has_reauth_data; 12588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->deinit_for_reauth = eap_sim_deinit_for_reauth; 12598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->init_for_reauth = eap_sim_init_for_reauth; 12608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->get_identity = eap_sim_get_identity; 12618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eap->get_emsk = eap_sim_get_emsk; 12628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12631d6bf427f4769edb60865a3999d01eeb8f8fcb19Dmitry Shmidt return eap_peer_method_register(eap); 12648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1265