/* * WPA Supplicant - test code * Copyright (c) 2003-2013, Jouni Malinen * * This software may be distributed under the terms of the BSD license. * See README for more details. * * IEEE 802.1X Supplicant test code (to be used in place of wpa_supplicant.c. * Not used in production version. */ #include "includes.h" #include #include "common.h" #include "utils/ext_password.h" #include "config.h" #include "eapol_supp/eapol_supp_sm.h" #include "eap_peer/eap.h" #include "eap_server/eap_methods.h" #include "eloop.h" #include "utils/base64.h" #include "rsn_supp/wpa.h" #include "wpa_supplicant_i.h" #include "radius/radius.h" #include "radius/radius_client.h" #include "common/wpa_ctrl.h" #include "ctrl_iface.h" #include "pcsc_funcs.h" #include "wpas_glue.h" struct wpa_driver_ops *wpa_drivers[] = { NULL }; struct extra_radius_attr { u8 type; char syntax; char *data; struct extra_radius_attr *next; }; struct eapol_test_data { struct wpa_supplicant *wpa_s; int eapol_test_num_reauths; int no_mppe_keys; int num_mppe_ok, num_mppe_mismatch; u8 radius_identifier; struct radius_msg *last_recv_radius; struct in_addr own_ip_addr; struct radius_client_data *radius; struct hostapd_radius_servers *radius_conf; /* last received EAP Response from Authentication Server */ struct wpabuf *last_eap_radius; u8 authenticator_pmk[PMK_LEN]; size_t authenticator_pmk_len; int radius_access_accept_received; int radius_access_reject_received; int auth_timed_out; u8 *eap_identity; size_t eap_identity_len; char *connect_info; u8 own_addr[ETH_ALEN]; struct extra_radius_attr *extra_attrs; FILE *server_cert_file; }; static struct eapol_test_data eapol_test; static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx); static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module, int level, const char *txt, size_t len) { if (addr) wpa_printf(MSG_DEBUG, "STA " MACSTR ": %s\n", MAC2STR(addr), txt); else wpa_printf(MSG_DEBUG, "%s", txt); } static int add_extra_attr(struct radius_msg *msg, struct extra_radius_attr *attr) { size_t len; char *pos; u32 val; char buf[RADIUS_MAX_ATTR_LEN + 1]; switch (attr->syntax) { case 's': os_snprintf(buf, sizeof(buf), "%s", attr->data); len = os_strlen(buf); break; case 'n': buf[0] = '\0'; len = 1; break; case 'x': pos = attr->data; if (pos[0] == '0' && pos[1] == 'x') pos += 2; len = os_strlen(pos); if ((len & 1) || (len / 2) > RADIUS_MAX_ATTR_LEN) { printf("Invalid extra attribute hexstring\n"); return -1; } len /= 2; if (hexstr2bin(pos, (u8 *) buf, len) < 0) { printf("Invalid extra attribute hexstring\n"); return -1; } break; case 'd': val = htonl(atoi(attr->data)); os_memcpy(buf, &val, 4); len = 4; break; default: printf("Incorrect extra attribute syntax specification\n"); return -1; } if (!radius_msg_add_attr(msg, attr->type, (u8 *) buf, len)) { printf("Could not add attribute %d\n", attr->type); return -1; } return 0; } static int add_extra_attrs(struct radius_msg *msg, struct extra_radius_attr *attrs) { struct extra_radius_attr *p; for (p = attrs; p; p = p->next) { if (add_extra_attr(msg, p) < 0) return -1; } return 0; } static struct extra_radius_attr * find_extra_attr(struct extra_radius_attr *attrs, u8 type) { struct extra_radius_attr *p; for (p = attrs; p; p = p->next) { if (p->type == type) return p; } return NULL; } static void ieee802_1x_encapsulate_radius(struct eapol_test_data *e, const u8 *eap, size_t len) { struct radius_msg *msg; char buf[RADIUS_MAX_ATTR_LEN + 1]; const struct eap_hdr *hdr; const u8 *pos; wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS " "packet"); e->radius_identifier = radius_client_get_id(e->radius); msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST, e->radius_identifier); if (msg == NULL) { printf("Could not create net RADIUS packet\n"); return; } radius_msg_make_authenticator(msg, (u8 *) e, sizeof(*e)); hdr = (const struct eap_hdr *) eap; pos = (const u8 *) (hdr + 1); if (len > sizeof(*hdr) && hdr->code == EAP_CODE_RESPONSE && pos[0] == EAP_TYPE_IDENTITY) { pos++; os_free(e->eap_identity); e->eap_identity_len = len - sizeof(*hdr) - 1; e->eap_identity = os_malloc(e->eap_identity_len); if (e->eap_identity) { os_memcpy(e->eap_identity, pos, e->eap_identity_len); wpa_hexdump(MSG_DEBUG, "Learned identity from " "EAP-Response-Identity", e->eap_identity, e->eap_identity_len); } } if (e->eap_identity && !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME, e->eap_identity, e->eap_identity_len)) { printf("Could not add User-Name\n"); goto fail; } if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_NAS_IP_ADDRESS) && !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS, (u8 *) &e->own_ip_addr, 4)) { printf("Could not add NAS-IP-Address\n"); goto fail; } os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT, MAC2STR(e->wpa_s->own_addr)); if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_CALLING_STATION_ID) && !radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID, (u8 *) buf, os_strlen(buf))) { printf("Could not add Calling-Station-Id\n"); goto fail; } /* TODO: should probably check MTU from driver config; 2304 is max for * IEEE 802.11, but use 1400 to avoid problems with too large packets */ if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_FRAMED_MTU) && !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) { printf("Could not add Framed-MTU\n"); goto fail; } if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_NAS_PORT_TYPE) && !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE, RADIUS_NAS_PORT_TYPE_IEEE_802_11)) { printf("Could not add NAS-Port-Type\n"); goto fail; } os_snprintf(buf, sizeof(buf), "%s", e->connect_info); if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_CONNECT_INFO) && !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO, (u8 *) buf, os_strlen(buf))) { printf("Could not add Connect-Info\n"); goto fail; } if (add_extra_attrs(msg, e->extra_attrs) < 0) goto fail; if (eap && !radius_msg_add_eap(msg, eap, len)) { printf("Could not add EAP-Message\n"); goto fail; } /* State attribute must be copied if and only if this packet is * Access-Request reply to the previous Access-Challenge */ if (e->last_recv_radius && radius_msg_get_hdr(e->last_recv_radius)->code == RADIUS_CODE_ACCESS_CHALLENGE) { int res = radius_msg_copy_attr(msg, e->last_recv_radius, RADIUS_ATTR_STATE); if (res < 0) { printf("Could not copy State attribute from previous " "Access-Challenge\n"); goto fail; } if (res > 0) { wpa_printf(MSG_DEBUG, " Copied RADIUS State " "Attribute"); } } if (radius_client_send(e->radius, msg, RADIUS_AUTH, e->wpa_s->own_addr) < 0) goto fail; return; fail: radius_msg_free(msg); } static int eapol_test_eapol_send(void *ctx, int type, const u8 *buf, size_t len) { printf("WPA: eapol_test_eapol_send(type=%d len=%lu)\n", type, (unsigned long) len); if (type == IEEE802_1X_TYPE_EAP_PACKET) { wpa_hexdump(MSG_DEBUG, "TX EAP -> RADIUS", buf, len); ieee802_1x_encapsulate_radius(&eapol_test, buf, len); } return 0; } static void eapol_test_set_config_blob(void *ctx, struct wpa_config_blob *blob) { struct eapol_test_data *e = ctx; wpa_config_set_blob(e->wpa_s->conf, blob); } static const struct wpa_config_blob * eapol_test_get_config_blob(void *ctx, const char *name) { struct eapol_test_data *e = ctx; return wpa_config_get_blob(e->wpa_s->conf, name); } static void eapol_test_eapol_done_cb(void *ctx) { printf("WPA: EAPOL processing complete\n"); } static void eapol_sm_reauth(void *eloop_ctx, void *timeout_ctx) { struct eapol_test_data *e = eloop_ctx; printf("\n\n\n\n\neapol_test: Triggering EAP reauthentication\n\n"); e->radius_access_accept_received = 0; send_eap_request_identity(e->wpa_s, NULL); } static int eapol_test_compare_pmk(struct eapol_test_data *e) { u8 pmk[PMK_LEN]; int ret = 1; if (eapol_sm_get_key(e->wpa_s->eapol, pmk, PMK_LEN) == 0) { wpa_hexdump(MSG_DEBUG, "PMK from EAPOL", pmk, PMK_LEN); if (os_memcmp(pmk, e->authenticator_pmk, PMK_LEN) != 0) { printf("WARNING: PMK mismatch\n"); wpa_hexdump(MSG_DEBUG, "PMK from AS", e->authenticator_pmk, PMK_LEN); } else if (e->radius_access_accept_received) ret = 0; } else if (e->authenticator_pmk_len == 16 && eapol_sm_get_key(e->wpa_s->eapol, pmk, 16) == 0) { wpa_hexdump(MSG_DEBUG, "LEAP PMK from EAPOL", pmk, 16); if (os_memcmp(pmk, e->authenticator_pmk, 16) != 0) { printf("WARNING: PMK mismatch\n"); wpa_hexdump(MSG_DEBUG, "PMK from AS", e->authenticator_pmk, 16); } else if (e->radius_access_accept_received) ret = 0; } else if (e->radius_access_accept_received && e->no_mppe_keys) { /* No keying material expected */ ret = 0; } if (ret && !e->no_mppe_keys) e->num_mppe_mismatch++; else if (!e->no_mppe_keys) e->num_mppe_ok++; return ret; } static void eapol_sm_cb(struct eapol_sm *eapol, int success, void *ctx) { struct eapol_test_data *e = ctx; printf("eapol_sm_cb: success=%d\n", success); e->eapol_test_num_reauths--; if (e->eapol_test_num_reauths < 0) eloop_terminate(); else { eapol_test_compare_pmk(e); eloop_register_timeout(0, 100000, eapol_sm_reauth, e, NULL); } } static void eapol_test_write_cert(FILE *f, const char *subject, const struct wpabuf *cert) { unsigned char *encoded; encoded = base64_encode(wpabuf_head(cert), wpabuf_len(cert), NULL); if (encoded == NULL) return; fprintf(f, "%s\n-----BEGIN CERTIFICATE-----\n%s" "-----END CERTIFICATE-----\n\n", subject, encoded); os_free(encoded); } #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) static void eapol_test_eap_param_needed(void *ctx, enum wpa_ctrl_req_type field, const char *default_txt) { struct eapol_test_data *e = ctx; struct wpa_supplicant *wpa_s = e->wpa_s; struct wpa_ssid *ssid = wpa_s->current_ssid; const char *field_name, *txt = NULL; char *buf; size_t buflen; int len; if (ssid == NULL) return; field_name = wpa_supplicant_ctrl_req_to_string(field, default_txt, &txt); if (field_name == NULL) { wpa_printf(MSG_WARNING, "Unhandled EAP param %d needed", field); return; } buflen = 100 + os_strlen(txt) + ssid->ssid_len; buf = os_malloc(buflen); if (buf == NULL) return; len = os_snprintf(buf, buflen, WPA_CTRL_REQ "%s-%d:%s needed for SSID ", field_name, ssid->id, txt); if (len < 0 || (size_t) len >= buflen) { os_free(buf); return; } if (ssid->ssid && buflen > len + ssid->ssid_len) { os_memcpy(buf + len, ssid->ssid, ssid->ssid_len); len += ssid->ssid_len; buf[len] = '\0'; } buf[buflen - 1] = '\0'; wpa_msg(wpa_s, MSG_INFO, "%s", buf); os_free(buf); } #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ #define eapol_test_eap_param_needed NULL #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ static void eapol_test_cert_cb(void *ctx, int depth, const char *subject, const char *cert_hash, const struct wpabuf *cert) { struct eapol_test_data *e = ctx; wpa_msg(e->wpa_s, MSG_INFO, WPA_EVENT_EAP_PEER_CERT "depth=%d subject='%s'%s%s", depth, subject, cert_hash ? " hash=" : "", cert_hash ? cert_hash : ""); if (cert) { char *cert_hex; size_t len = wpabuf_len(cert) * 2 + 1; cert_hex = os_malloc(len); if (cert_hex) { wpa_snprintf_hex(cert_hex, len, wpabuf_head(cert), wpabuf_len(cert)); wpa_msg_ctrl(e->wpa_s, MSG_INFO, WPA_EVENT_EAP_PEER_CERT "depth=%d subject='%s' cert=%s", depth, subject, cert_hex); os_free(cert_hex); } if (e->server_cert_file) eapol_test_write_cert(e->server_cert_file, subject, cert); } } static void eapol_test_set_anon_id(void *ctx, const u8 *id, size_t len) { struct eapol_test_data *e = ctx; struct wpa_supplicant *wpa_s = e->wpa_s; char *str; int res; wpa_hexdump_ascii(MSG_DEBUG, "EAP method updated anonymous_identity", id, len); if (wpa_s->current_ssid == NULL) return; if (id == NULL) { if (wpa_config_set(wpa_s->current_ssid, "anonymous_identity", "NULL", 0) < 0) return; } else { str = os_malloc(len * 2 + 1); if (str == NULL) return; wpa_snprintf_hex(str, len * 2 + 1, id, len); res = wpa_config_set(wpa_s->current_ssid, "anonymous_identity", str, 0); os_free(str); if (res < 0) return; } } static int test_eapol(struct eapol_test_data *e, struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) { struct eapol_config eapol_conf; struct eapol_ctx *ctx; ctx = os_zalloc(sizeof(*ctx)); if (ctx == NULL) { printf("Failed to allocate EAPOL context.\n"); return -1; } ctx->ctx = e; ctx->msg_ctx = wpa_s; ctx->scard_ctx = wpa_s->scard; ctx->cb = eapol_sm_cb; ctx->cb_ctx = e; ctx->eapol_send_ctx = wpa_s; ctx->preauth = 0; ctx->eapol_done_cb = eapol_test_eapol_done_cb; ctx->eapol_send = eapol_test_eapol_send; ctx->set_config_blob = eapol_test_set_config_blob; ctx->get_config_blob = eapol_test_get_config_blob; ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path; ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path; ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path; ctx->eap_param_needed = eapol_test_eap_param_needed; ctx->cert_cb = eapol_test_cert_cb; ctx->cert_in_cb = 1; ctx->set_anon_id = eapol_test_set_anon_id; wpa_s->eapol = eapol_sm_init(ctx); if (wpa_s->eapol == NULL) { os_free(ctx); printf("Failed to initialize EAPOL state machines.\n"); return -1; } wpa_s->current_ssid = ssid; os_memset(&eapol_conf, 0, sizeof(eapol_conf)); eapol_conf.accept_802_1x_keys = 1; eapol_conf.required_keys = 0; eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; eapol_conf.workaround = ssid->eap_workaround; eapol_conf.external_sim = wpa_s->conf->external_sim; eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); eapol_sm_notify_portValid(wpa_s->eapol, FALSE); /* 802.1X::portControl = Auto */ eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); return 0; } static void test_eapol_clean(struct eapol_test_data *e, struct wpa_supplicant *wpa_s) { struct extra_radius_attr *p, *prev; radius_client_deinit(e->radius); wpabuf_free(e->last_eap_radius); radius_msg_free(e->last_recv_radius); e->last_recv_radius = NULL; os_free(e->eap_identity); e->eap_identity = NULL; eapol_sm_deinit(wpa_s->eapol); wpa_s->eapol = NULL; if (e->radius_conf && e->radius_conf->auth_server) { os_free(e->radius_conf->auth_server->shared_secret); os_free(e->radius_conf->auth_server); } os_free(e->radius_conf); e->radius_conf = NULL; scard_deinit(wpa_s->scard); if (wpa_s->ctrl_iface) { wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); wpa_s->ctrl_iface = NULL; } ext_password_deinit(wpa_s->ext_pw); wpa_s->ext_pw = NULL; wpa_config_free(wpa_s->conf); p = e->extra_attrs; while (p) { prev = p; p = p->next; os_free(prev); } } static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx) { struct wpa_supplicant *wpa_s = eloop_ctx; u8 buf[100], *pos; struct ieee802_1x_hdr *hdr; struct eap_hdr *eap; hdr = (struct ieee802_1x_hdr *) buf; hdr->version = EAPOL_VERSION; hdr->type = IEEE802_1X_TYPE_EAP_PACKET; hdr->length = htons(5); eap = (struct eap_hdr *) (hdr + 1); eap->code = EAP_CODE_REQUEST; eap->identifier = 0; eap->length = htons(5); pos = (u8 *) (eap + 1); *pos = EAP_TYPE_IDENTITY; printf("Sending fake EAP-Request-Identity\n"); eapol_sm_rx_eapol(wpa_s->eapol, wpa_s->bssid, buf, sizeof(*hdr) + 5); } static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx) { struct eapol_test_data *e = eloop_ctx; printf("EAPOL test timed out\n"); e->auth_timed_out = 1; eloop_terminate(); } static char *eap_type_text(u8 type) { switch (type) { case EAP_TYPE_IDENTITY: return "Identity"; case EAP_TYPE_NOTIFICATION: return "Notification"; case EAP_TYPE_NAK: return "Nak"; case EAP_TYPE_TLS: return "TLS"; case EAP_TYPE_TTLS: return "TTLS"; case EAP_TYPE_PEAP: return "PEAP"; case EAP_TYPE_SIM: return "SIM"; case EAP_TYPE_GTC: return "GTC"; case EAP_TYPE_MD5: return "MD5"; case EAP_TYPE_OTP: return "OTP"; case EAP_TYPE_FAST: return "FAST"; case EAP_TYPE_SAKE: return "SAKE"; case EAP_TYPE_PSK: return "PSK"; default: return "Unknown"; } } static void ieee802_1x_decapsulate_radius(struct eapol_test_data *e) { struct wpabuf *eap; const struct eap_hdr *hdr; int eap_type = -1; char buf[64]; struct radius_msg *msg; if (e->last_recv_radius == NULL) return; msg = e->last_recv_radius; eap = radius_msg_get_eap(msg); if (eap == NULL) { /* draft-aboba-radius-rfc2869bis-20.txt, Chap. 2.6.3: * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message * attribute */ wpa_printf(MSG_DEBUG, "could not extract " "EAP-Message from RADIUS message"); wpabuf_free(e->last_eap_radius); e->last_eap_radius = NULL; return; } if (wpabuf_len(eap) < sizeof(*hdr)) { wpa_printf(MSG_DEBUG, "too short EAP packet " "received from authentication server"); wpabuf_free(eap); return; } if (wpabuf_len(eap) > sizeof(*hdr)) eap_type = (wpabuf_head_u8(eap))[sizeof(*hdr)]; hdr = wpabuf_head(eap); switch (hdr->code) { case EAP_CODE_REQUEST: os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)", eap_type >= 0 ? eap_type_text(eap_type) : "??", eap_type); break; case EAP_CODE_RESPONSE: os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)", eap_type >= 0 ? eap_type_text(eap_type) : "??", eap_type); break; case EAP_CODE_SUCCESS: os_strlcpy(buf, "EAP Success", sizeof(buf)); /* LEAP uses EAP Success within an authentication, so must not * stop here with eloop_terminate(); */ break; case EAP_CODE_FAILURE: os_strlcpy(buf, "EAP Failure", sizeof(buf)); eloop_terminate(); break; default: os_strlcpy(buf, "unknown EAP code", sizeof(buf)); wpa_hexdump_buf(MSG_DEBUG, "Decapsulated EAP packet", eap); break; } wpa_printf(MSG_DEBUG, "decapsulated EAP packet (code=%d " "id=%d len=%d) from RADIUS server: %s", hdr->code, hdr->identifier, ntohs(hdr->length), buf); /* sta->eapol_sm->be_auth.idFromServer = hdr->identifier; */ wpabuf_free(e->last_eap_radius); e->last_eap_radius = eap; { struct ieee802_1x_hdr *dot1x; dot1x = os_malloc(sizeof(*dot1x) + wpabuf_len(eap)); assert(dot1x != NULL); dot1x->version = EAPOL_VERSION; dot1x->type = IEEE802_1X_TYPE_EAP_PACKET; dot1x->length = htons(wpabuf_len(eap)); os_memcpy((u8 *) (dot1x + 1), wpabuf_head(eap), wpabuf_len(eap)); eapol_sm_rx_eapol(e->wpa_s->eapol, e->wpa_s->bssid, (u8 *) dot1x, sizeof(*dot1x) + wpabuf_len(eap)); os_free(dot1x); } } static void ieee802_1x_get_keys(struct eapol_test_data *e, struct radius_msg *msg, struct radius_msg *req, const u8 *shared_secret, size_t shared_secret_len) { struct radius_ms_mppe_keys *keys; keys = radius_msg_get_ms_keys(msg, req, shared_secret, shared_secret_len); if (keys && keys->send == NULL && keys->recv == NULL) { os_free(keys); keys = radius_msg_get_cisco_keys(msg, req, shared_secret, shared_secret_len); } if (keys) { if (keys->send) { wpa_hexdump(MSG_DEBUG, "MS-MPPE-Send-Key (sign)", keys->send, keys->send_len); } if (keys->recv) { wpa_hexdump(MSG_DEBUG, "MS-MPPE-Recv-Key (crypt)", keys->recv, keys->recv_len); e->authenticator_pmk_len = keys->recv_len > PMK_LEN ? PMK_LEN : keys->recv_len; os_memcpy(e->authenticator_pmk, keys->recv, e->authenticator_pmk_len); if (e->authenticator_pmk_len == 16 && keys->send && keys->send_len == 16) { /* MS-CHAP-v2 derives 16 octet keys */ wpa_printf(MSG_DEBUG, "Use MS-MPPE-Send-Key " "to extend PMK to 32 octets"); os_memcpy(e->authenticator_pmk + e->authenticator_pmk_len, keys->send, keys->send_len); e->authenticator_pmk_len += keys->send_len; } } os_free(keys->send); os_free(keys->recv); os_free(keys); } } /* Process the RADIUS frames from Authentication Server */ static RadiusRxResult ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req, const u8 *shared_secret, size_t shared_secret_len, void *data) { struct eapol_test_data *e = data; struct radius_hdr *hdr = radius_msg_get_hdr(msg); /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be * present when packet contains an EAP-Message attribute */ if (hdr->code == RADIUS_CODE_ACCESS_REJECT && radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL, 0) < 0 && radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) { wpa_printf(MSG_DEBUG, "Allowing RADIUS " "Access-Reject without Message-Authenticator " "since it does not include EAP-Message\n"); } else if (radius_msg_verify(msg, shared_secret, shared_secret_len, req, 1)) { printf("Incoming RADIUS packet did not have correct " "Message-Authenticator - dropped\n"); return RADIUS_RX_UNKNOWN; } if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT && hdr->code != RADIUS_CODE_ACCESS_REJECT && hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) { printf("Unknown RADIUS message code\n"); return RADIUS_RX_UNKNOWN; } e->radius_identifier = -1; wpa_printf(MSG_DEBUG, "RADIUS packet matching with station"); radius_msg_free(e->last_recv_radius); e->last_recv_radius = msg; switch (hdr->code) { case RADIUS_CODE_ACCESS_ACCEPT: e->radius_access_accept_received = 1; ieee802_1x_get_keys(e, msg, req, shared_secret, shared_secret_len); break; case RADIUS_CODE_ACCESS_REJECT: e->radius_access_reject_received = 1; break; } ieee802_1x_decapsulate_radius(e); if ((hdr->code == RADIUS_CODE_ACCESS_ACCEPT && e->eapol_test_num_reauths < 0) || hdr->code == RADIUS_CODE_ACCESS_REJECT) { eloop_terminate(); } return RADIUS_RX_QUEUED; } static void wpa_init_conf(struct eapol_test_data *e, struct wpa_supplicant *wpa_s, const char *authsrv, int port, const char *secret, const char *cli_addr) { struct hostapd_radius_server *as; int res; wpa_s->bssid[5] = 1; os_memcpy(wpa_s->own_addr, e->own_addr, ETH_ALEN); e->own_ip_addr.s_addr = htonl((127 << 24) | 1); os_strlcpy(wpa_s->ifname, "test", sizeof(wpa_s->ifname)); e->radius_conf = os_zalloc(sizeof(struct hostapd_radius_servers)); assert(e->radius_conf != NULL); e->radius_conf->num_auth_servers = 1; as = os_zalloc(sizeof(struct hostapd_radius_server)); assert(as != NULL); #if defined(CONFIG_NATIVE_WINDOWS) || defined(CONFIG_ANSI_C_EXTRA) { int a[4]; u8 *pos; sscanf(authsrv, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]); pos = (u8 *) &as->addr.u.v4; *pos++ = a[0]; *pos++ = a[1]; *pos++ = a[2]; *pos++ = a[3]; } #else /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */ inet_aton(authsrv, &as->addr.u.v4); #endif /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */ as->addr.af = AF_INET; as->port = port; as->shared_secret = (u8 *) os_strdup(secret); as->shared_secret_len = os_strlen(secret); e->radius_conf->auth_server = as; e->radius_conf->auth_servers = as; e->radius_conf->msg_dumps = 1; if (cli_addr) { if (hostapd_parse_ip_addr(cli_addr, &e->radius_conf->client_addr) == 0) e->radius_conf->force_client_addr = 1; else { wpa_printf(MSG_ERROR, "Invalid IP address '%s'", cli_addr); assert(0); } } e->radius = radius_client_init(wpa_s, e->radius_conf); assert(e->radius != NULL); res = radius_client_register(e->radius, RADIUS_AUTH, ieee802_1x_receive_auth, e); assert(res == 0); } static int scard_test(void) { struct scard_data *scard; size_t len; char imsi[20]; unsigned char _rand[16]; #ifdef PCSC_FUNCS unsigned char sres[4]; unsigned char kc[8]; #endif /* PCSC_FUNCS */ #define num_triplets 5 unsigned char rand_[num_triplets][16]; unsigned char sres_[num_triplets][4]; unsigned char kc_[num_triplets][8]; int i, res; size_t j; #define AKA_RAND_LEN 16 #define AKA_AUTN_LEN 16 #define AKA_AUTS_LEN 14 #define RES_MAX_LEN 16 #define IK_LEN 16 #define CK_LEN 16 unsigned char aka_rand[AKA_RAND_LEN]; unsigned char aka_autn[AKA_AUTN_LEN]; unsigned char aka_auts[AKA_AUTS_LEN]; unsigned char aka_res[RES_MAX_LEN]; size_t aka_res_len; unsigned char aka_ik[IK_LEN]; unsigned char aka_ck[CK_LEN]; scard = scard_init(NULL); if (scard == NULL) return -1; if (scard_set_pin(scard, "1234")) { wpa_printf(MSG_WARNING, "PIN validation failed"); scard_deinit(scard); return -1; } len = sizeof(imsi); if (scard_get_imsi(scard, imsi, &len)) goto failed; wpa_hexdump_ascii(MSG_DEBUG, "SCARD: IMSI", (u8 *) imsi, len); /* NOTE: Permanent Username: 1 | IMSI */ wpa_printf(MSG_DEBUG, "SCARD: MNC length %d", scard_get_mnc_len(scard)); os_memset(_rand, 0, sizeof(_rand)); if (scard_gsm_auth(scard, _rand, sres, kc)) goto failed; os_memset(_rand, 0xff, sizeof(_rand)); if (scard_gsm_auth(scard, _rand, sres, kc)) goto failed; for (i = 0; i < num_triplets; i++) { os_memset(rand_[i], i, sizeof(rand_[i])); if (scard_gsm_auth(scard, rand_[i], sres_[i], kc_[i])) goto failed; } for (i = 0; i < num_triplets; i++) { printf("1"); for (j = 0; j < len; j++) printf("%c", imsi[j]); printf(","); for (j = 0; j < 16; j++) printf("%02X", rand_[i][j]); printf(","); for (j = 0; j < 4; j++) printf("%02X", sres_[i][j]); printf(","); for (j = 0; j < 8; j++) printf("%02X", kc_[i][j]); printf("\n"); } wpa_printf(MSG_DEBUG, "Trying to use UMTS authentication"); /* seq 39 (0x28) */ os_memset(aka_rand, 0xaa, 16); os_memcpy(aka_autn, "\x86\x71\x31\xcb\xa2\xfc\x61\xdf" "\xa3\xb3\x97\x9d\x07\x32\xa2\x12", 16); res = scard_umts_auth(scard, aka_rand, aka_autn, aka_res, &aka_res_len, aka_ik, aka_ck, aka_auts); if (res == 0) { wpa_printf(MSG_DEBUG, "UMTS auth completed successfully"); wpa_hexdump(MSG_DEBUG, "RES", aka_res, aka_res_len); wpa_hexdump(MSG_DEBUG, "IK", aka_ik, IK_LEN); wpa_hexdump(MSG_DEBUG, "CK", aka_ck, CK_LEN); } else if (res == -2) { wpa_printf(MSG_DEBUG, "UMTS auth resulted in synchronization " "failure"); wpa_hexdump(MSG_DEBUG, "AUTS", aka_auts, AKA_AUTS_LEN); } else { wpa_printf(MSG_DEBUG, "UMTS auth failed"); } failed: scard_deinit(scard); return 0; #undef num_triplets } static int scard_get_triplets(int argc, char *argv[]) { struct scard_data *scard; size_t len; char imsi[20]; unsigned char _rand[16]; unsigned char sres[4]; unsigned char kc[8]; int num_triplets; int i; size_t j; if (argc < 2 || ((num_triplets = atoi(argv[1])) <= 0)) { printf("invalid parameters for sim command\n"); return -1; } if (argc <= 2 || os_strcmp(argv[2], "debug") != 0) { /* disable debug output */ wpa_debug_level = 99; } scard = scard_init(NULL); if (scard == NULL) { printf("Failed to open smartcard connection\n"); return -1; } if (scard_set_pin(scard, argv[0])) { wpa_printf(MSG_WARNING, "PIN validation failed"); scard_deinit(scard); return -1; } len = sizeof(imsi); if (scard_get_imsi(scard, imsi, &len)) { scard_deinit(scard); return -1; } for (i = 0; i < num_triplets; i++) { os_memset(_rand, i, sizeof(_rand)); if (scard_gsm_auth(scard, _rand, sres, kc)) break; /* IMSI:Kc:SRES:RAND */ for (j = 0; j < len; j++) printf("%c", imsi[j]); printf(":"); for (j = 0; j < 8; j++) printf("%02X", kc[j]); printf(":"); for (j = 0; j < 4; j++) printf("%02X", sres[j]); printf(":"); for (j = 0; j < 16; j++) printf("%02X", _rand[j]); printf("\n"); } scard_deinit(scard); return 0; } static void eapol_test_terminate(int sig, void *signal_ctx) { struct wpa_supplicant *wpa_s = signal_ctx; wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig); eloop_terminate(); } static void usage(void) { printf("usage:\n" "eapol_test [-nWS] -c [-a] [-p] " "[-s]\\\n" " [-r] [-t] [-C] \\\n" " [-M] [-o] \\\n" " [-A]\n" "eapol_test scard\n" "eapol_test sim [debug]\n" "\n"); printf("options:\n" " -c = configuration file\n" " -a = IP address of the authentication server, " "default 127.0.0.1\n" " -p = UDP port of the authentication server, " "default 1812\n" " -s = shared secret with the authentication " "server, default 'radius'\n" " -A = IP address of the client, default: select " "automatically\n" " -r = number of re-authentications\n" " -W = wait for a control interface monitor before starting\n" " -S = save configuration after authentication\n" " -n = no MPPE keys expected\n" " -t = sets timeout in seconds (default: 30 s)\n" " -C = RADIUS Connect-Info (default: " "CONNECT 11Mbps 802.11b)\n" " -M = Set own MAC address " "(Calling-Station-Id,\n" " default: 02:00:00:00:00:01)\n" " -o = Write received server certificate\n" " chain to the specified file\n" " -N = send arbitrary attribute specified by:\n" " attr_id:syntax:value or attr_id\n" " attr_id - number id of the attribute\n" " syntax - one of: s, d, x\n" " s = string\n" " d = integer\n" " x = octet string\n" " value - attribute value.\n" " When only attr_id is specified, NULL will be used as " "value.\n" " Multiple attributes can be specified by using the " "option several times.\n"); } int main(int argc, char *argv[]) { struct wpa_global global; struct wpa_supplicant wpa_s; int c, ret = 1, wait_for_monitor = 0, save_config = 0; char *as_addr = "127.0.0.1"; int as_port = 1812; char *as_secret = "radius"; char *cli_addr = NULL; char *conf = NULL; int timeout = 30; char *pos; struct extra_radius_attr *p = NULL, *p1; if (os_program_init()) return -1; hostapd_logger_register_cb(hostapd_logger_cb); os_memset(&eapol_test, 0, sizeof(eapol_test)); eapol_test.connect_info = "CONNECT 11Mbps 802.11b"; os_memcpy(eapol_test.own_addr, "\x02\x00\x00\x00\x00\x01", ETH_ALEN); wpa_debug_level = 0; wpa_debug_show_keys = 1; for (;;) { c = getopt(argc, argv, "a:A:c:C:M:nN:o:p:r:s:St:W"); if (c < 0) break; switch (c) { case 'a': as_addr = optarg; break; case 'A': cli_addr = optarg; break; case 'c': conf = optarg; break; case 'C': eapol_test.connect_info = optarg; break; case 'M': if (hwaddr_aton(optarg, eapol_test.own_addr)) { usage(); return -1; } break; case 'n': eapol_test.no_mppe_keys++; break; case 'o': if (eapol_test.server_cert_file) fclose(eapol_test.server_cert_file); eapol_test.server_cert_file = fopen(optarg, "w"); if (eapol_test.server_cert_file == NULL) { printf("Could not open '%s' for writing\n", optarg); return -1; } break; case 'p': as_port = atoi(optarg); break; case 'r': eapol_test.eapol_test_num_reauths = atoi(optarg); break; case 's': as_secret = optarg; break; case 'S': save_config++; break; case 't': timeout = atoi(optarg); break; case 'W': wait_for_monitor++; break; case 'N': p1 = os_zalloc(sizeof(*p1)); if (p1 == NULL) break; if (!p) eapol_test.extra_attrs = p1; else p->next = p1; p = p1; p->type = atoi(optarg); pos = os_strchr(optarg, ':'); if (pos == NULL) { p->syntax = 'n'; p->data = NULL; break; } pos++; if (pos[0] == '\0' || pos[1] != ':') { printf("Incorrect format of attribute " "specification\n"); break; } p->syntax = pos[0]; p->data = pos + 2; break; default: usage(); return -1; } } if (argc > optind && os_strcmp(argv[optind], "scard") == 0) { return scard_test(); } if (argc > optind && os_strcmp(argv[optind], "sim") == 0) { return scard_get_triplets(argc - optind - 1, &argv[optind + 1]); } if (conf == NULL) { usage(); printf("Configuration file is required.\n"); return -1; } if (eap_register_methods()) { wpa_printf(MSG_ERROR, "Failed to register EAP methods"); return -1; } if (eloop_init()) { wpa_printf(MSG_ERROR, "Failed to initialize event loop"); return -1; } os_memset(&global, 0, sizeof(global)); os_memset(&wpa_s, 0, sizeof(wpa_s)); wpa_s.global = &global; eapol_test.wpa_s = &wpa_s; dl_list_init(&wpa_s.bss); dl_list_init(&wpa_s.bss_id); wpa_s.conf = wpa_config_read(conf, NULL); if (wpa_s.conf == NULL) { printf("Failed to parse configuration file '%s'.\n", conf); return -1; } if (wpa_s.conf->ssid == NULL) { printf("No networks defined.\n"); return -1; } wpa_init_conf(&eapol_test, &wpa_s, as_addr, as_port, as_secret, cli_addr); wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s); if (wpa_s.ctrl_iface == NULL) { printf("Failed to initialize control interface '%s'.\n" "You may have another eapol_test process already " "running or the file was\n" "left by an unclean termination of eapol_test in " "which case you will need\n" "to manually remove this file before starting " "eapol_test again.\n", wpa_s.conf->ctrl_interface); return -1; } if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid)) return -1; if (test_eapol(&eapol_test, &wpa_s, wpa_s.conf->ssid)) return -1; if (wpas_init_ext_pw(&wpa_s) < 0) return -1; if (wait_for_monitor) wpa_supplicant_ctrl_iface_wait(wpa_s.ctrl_iface); eloop_register_timeout(timeout, 0, eapol_test_timeout, &eapol_test, NULL); eloop_register_timeout(0, 0, send_eap_request_identity, &wpa_s, NULL); eloop_register_signal_terminate(eapol_test_terminate, &wpa_s); eloop_register_signal_reconfig(eapol_test_terminate, &wpa_s); eloop_run(); eloop_cancel_timeout(eapol_test_timeout, &eapol_test, NULL); eloop_cancel_timeout(eapol_sm_reauth, &eapol_test, NULL); if (eapol_test_compare_pmk(&eapol_test) == 0 || eapol_test.no_mppe_keys) ret = 0; if (eapol_test.auth_timed_out) ret = -2; if (eapol_test.radius_access_reject_received) ret = -3; if (save_config) wpa_config_write(conf, wpa_s.conf); test_eapol_clean(&eapol_test, &wpa_s); eap_peer_unregister_methods(); #ifdef CONFIG_AP eap_server_unregister_methods(); #endif /* CONFIG_AP */ eloop_destroy(); if (eapol_test.server_cert_file) fclose(eapol_test.server_cert_file); printf("MPPE keys OK: %d mismatch: %d\n", eapol_test.num_mppe_ok, eapol_test.num_mppe_mismatch); if (eapol_test.num_mppe_mismatch) ret = -4; if (ret) printf("FAILURE\n"); else printf("SUCCESS\n"); os_program_deinit(); return ret; }