/* * Test program for combined WPA authenticator/supplicant * Copyright (c) 2006-2007, Jouni Malinen <j@w1.fi> * * This software may be distributed under the terms of the BSD license. * See README for more details. */ #include "includes.h" #include "common.h" #include "eloop.h" #include "common/ieee802_11_defs.h" #include "../config.h" #include "rsn_supp/wpa.h" #include "rsn_supp/wpa_ie.h" #include "ap/wpa_auth.h" struct wpa { u8 auth_addr[ETH_ALEN]; u8 supp_addr[ETH_ALEN]; u8 psk[PMK_LEN]; /* from authenticator */ u8 auth_eapol_dst[ETH_ALEN]; u8 *auth_eapol; size_t auth_eapol_len; /* from supplicant */ u8 *supp_eapol; size_t supp_eapol_len; struct wpa_sm *supp; struct wpa_authenticator *auth_group; struct wpa_state_machine *auth; struct wpa_ssid ssid; u8 supp_ie[80]; size_t supp_ie_len; }; static int supp_get_bssid(void *ctx, u8 *bssid) { struct wpa *wpa = ctx; wpa_printf(MSG_DEBUG, "SUPP: %s", __func__); os_memcpy(bssid, wpa->auth_addr, ETH_ALEN); return 0; } static void supp_set_state(void *ctx, enum wpa_states state) { wpa_printf(MSG_DEBUG, "SUPP: %s(state=%d)", __func__, state); } static void auth_eapol_rx(void *eloop_data, void *user_ctx) { struct wpa *wpa = eloop_data; wpa_printf(MSG_DEBUG, "AUTH: RX EAPOL frame"); wpa_receive(wpa->auth_group, wpa->auth, wpa->supp_eapol, wpa->supp_eapol_len); } static int supp_ether_send(void *ctx, const u8 *dest, u16 proto, const u8 *buf, size_t len) { struct wpa *wpa = ctx; wpa_printf(MSG_DEBUG, "SUPP: %s(dest=" MACSTR " proto=0x%04x " "len=%lu)", __func__, MAC2STR(dest), proto, (unsigned long) len); os_free(wpa->supp_eapol); wpa->supp_eapol = os_malloc(len); if (wpa->supp_eapol == NULL) return -1; os_memcpy(wpa->supp_eapol, buf, len); wpa->supp_eapol_len = len; eloop_register_timeout(0, 0, auth_eapol_rx, wpa, NULL); return 0; } static u8 * supp_alloc_eapol(void *ctx, u8 type, const void *data, u16 data_len, size_t *msg_len, void **data_pos) { struct ieee802_1x_hdr *hdr; wpa_printf(MSG_DEBUG, "SUPP: %s(type=%d data_len=%d)", __func__, type, data_len); *msg_len = sizeof(*hdr) + data_len; hdr = os_malloc(*msg_len); if (hdr == NULL) return NULL; hdr->version = 2; hdr->type = type; hdr->length = host_to_be16(data_len); if (data) os_memcpy(hdr + 1, data, data_len); else os_memset(hdr + 1, 0, data_len); if (data_pos) *data_pos = hdr + 1; return (u8 *) hdr; } static int supp_get_beacon_ie(void *ctx) { struct wpa *wpa = ctx; const u8 *ie; size_t ielen; wpa_printf(MSG_DEBUG, "SUPP: %s", __func__); ie = wpa_auth_get_wpa_ie(wpa->auth_group, &ielen); if (ie == NULL || ielen < 1) return -1; if (ie[0] == WLAN_EID_RSN) return wpa_sm_set_ap_rsn_ie(wpa->supp, ie, 2 + ie[1]); return wpa_sm_set_ap_wpa_ie(wpa->supp, ie, 2 + ie[1]); } static int supp_set_key(void *ctx, enum wpa_alg alg, const u8 *addr, int key_idx, int set_tx, const u8 *seq, size_t seq_len, const u8 *key, size_t key_len) { wpa_printf(MSG_DEBUG, "SUPP: %s(alg=%d addr=" MACSTR " key_idx=%d " "set_tx=%d)", __func__, alg, MAC2STR(addr), key_idx, set_tx); wpa_hexdump(MSG_DEBUG, "SUPP: set_key - seq", seq, seq_len); wpa_hexdump(MSG_DEBUG, "SUPP: set_key - key", key, key_len); return 0; } static int supp_mlme_setprotection(void *ctx, const u8 *addr, int protection_type, int key_type) { wpa_printf(MSG_DEBUG, "SUPP: %s(addr=" MACSTR " protection_type=%d " "key_type=%d)", __func__, MAC2STR(addr), protection_type, key_type); return 0; } static void supp_cancel_auth_timeout(void *ctx) { wpa_printf(MSG_DEBUG, "SUPP: %s", __func__); } static int supp_init(struct wpa *wpa) { struct wpa_sm_ctx *ctx = os_zalloc(sizeof(*ctx)); if (ctx == NULL) return -1; ctx->ctx = wpa; ctx->msg_ctx = wpa; ctx->set_state = supp_set_state; ctx->get_bssid = supp_get_bssid; ctx->ether_send = supp_ether_send; ctx->get_beacon_ie = supp_get_beacon_ie; ctx->alloc_eapol = supp_alloc_eapol; ctx->set_key = supp_set_key; ctx->mlme_setprotection = supp_mlme_setprotection; ctx->cancel_auth_timeout = supp_cancel_auth_timeout; wpa->supp = wpa_sm_init(ctx); if (wpa->supp == NULL) { wpa_printf(MSG_DEBUG, "SUPP: wpa_sm_init() failed"); return -1; } wpa_sm_set_own_addr(wpa->supp, wpa->supp_addr); wpa_sm_set_param(wpa->supp, WPA_PARAM_RSN_ENABLED, 1); wpa_sm_set_param(wpa->supp, WPA_PARAM_PROTO, WPA_PROTO_RSN); wpa_sm_set_param(wpa->supp, WPA_PARAM_PAIRWISE, WPA_CIPHER_CCMP); wpa_sm_set_param(wpa->supp, WPA_PARAM_GROUP, WPA_CIPHER_CCMP); wpa_sm_set_param(wpa->supp, WPA_PARAM_KEY_MGMT, WPA_KEY_MGMT_PSK); wpa_sm_set_pmk(wpa->supp, wpa->psk, PMK_LEN); wpa->supp_ie_len = sizeof(wpa->supp_ie); if (wpa_sm_set_assoc_wpa_ie_default(wpa->supp, wpa->supp_ie, &wpa->supp_ie_len) < 0) { wpa_printf(MSG_DEBUG, "SUPP: wpa_sm_set_assoc_wpa_ie_default()" " failed"); return -1; } wpa_sm_notify_assoc(wpa->supp, wpa->auth_addr); return 0; } static void auth_logger(void *ctx, const u8 *addr, logger_level level, const char *txt) { if (addr) wpa_printf(MSG_DEBUG, "AUTH: " MACSTR " - %s", MAC2STR(addr), txt); else wpa_printf(MSG_DEBUG, "AUTH: %s", txt); } static void supp_eapol_rx(void *eloop_data, void *user_ctx) { struct wpa *wpa = eloop_data; wpa_printf(MSG_DEBUG, "SUPP: RX EAPOL frame"); wpa_sm_rx_eapol(wpa->supp, wpa->auth_addr, wpa->auth_eapol, wpa->auth_eapol_len); } static int auth_send_eapol(void *ctx, const u8 *addr, const u8 *data, size_t data_len, int encrypt) { struct wpa *wpa = ctx; wpa_printf(MSG_DEBUG, "AUTH: %s(addr=" MACSTR " data_len=%lu " "encrypt=%d)", __func__, MAC2STR(addr), (unsigned long) data_len, encrypt); os_free(wpa->auth_eapol); wpa->auth_eapol = os_malloc(data_len); if (wpa->auth_eapol == NULL) return -1; os_memcpy(wpa->auth_eapol_dst, addr, ETH_ALEN); os_memcpy(wpa->auth_eapol, data, data_len); wpa->auth_eapol_len = data_len; eloop_register_timeout(0, 0, supp_eapol_rx, wpa, NULL); return 0; } static const u8 * auth_get_psk(void *ctx, const u8 *addr, const u8 *prev_psk) { struct wpa *wpa = ctx; wpa_printf(MSG_DEBUG, "AUTH: %s (addr=" MACSTR " prev_psk=%p)", __func__, MAC2STR(addr), prev_psk); if (prev_psk) return NULL; return wpa->psk; } static int auth_init_group(struct wpa *wpa) { struct wpa_auth_config conf; struct wpa_auth_callbacks cb; wpa_printf(MSG_DEBUG, "AUTH: Initializing group state machine"); os_memset(&conf, 0, sizeof(conf)); conf.wpa = 2; conf.wpa_key_mgmt = WPA_KEY_MGMT_PSK; conf.wpa_pairwise = WPA_CIPHER_CCMP; conf.rsn_pairwise = WPA_CIPHER_CCMP; conf.wpa_group = WPA_CIPHER_CCMP; conf.eapol_version = 2; os_memset(&cb, 0, sizeof(cb)); cb.ctx = wpa; cb.logger = auth_logger; cb.send_eapol = auth_send_eapol; cb.get_psk = auth_get_psk; wpa->auth_group = wpa_init(wpa->auth_addr, &conf, &cb); if (wpa->auth_group == NULL) { wpa_printf(MSG_DEBUG, "AUTH: wpa_init() failed"); return -1; } return 0; } static int auth_init(struct wpa *wpa) { wpa->auth = wpa_auth_sta_init(wpa->auth_group, wpa->supp_addr, NULL); if (wpa->auth == NULL) { wpa_printf(MSG_DEBUG, "AUTH: wpa_auth_sta_init() failed"); return -1; } if (wpa_validate_wpa_ie(wpa->auth_group, wpa->auth, wpa->supp_ie, wpa->supp_ie_len, NULL, 0) != WPA_IE_OK) { wpa_printf(MSG_DEBUG, "AUTH: wpa_validate_wpa_ie() failed"); return -1; } wpa_auth_sm_event(wpa->auth, WPA_ASSOC); wpa_auth_sta_associated(wpa->auth_group, wpa->auth); return 0; } static void deinit(struct wpa *wpa) { wpa_auth_sta_deinit(wpa->auth); wpa_sm_deinit(wpa->supp); wpa_deinit(wpa->auth_group); os_free(wpa->auth_eapol); wpa->auth_eapol = NULL; os_free(wpa->supp_eapol); wpa->supp_eapol = NULL; } int main(int argc, char *argv[]) { struct wpa wpa; if (os_program_init()) return -1; os_memset(&wpa, 0, sizeof(wpa)); os_memset(wpa.auth_addr, 0x12, ETH_ALEN); os_memset(wpa.supp_addr, 0x32, ETH_ALEN); os_memset(wpa.psk, 0x44, PMK_LEN); wpa_debug_level = 0; wpa_debug_show_keys = 1; if (eloop_init()) { wpa_printf(MSG_ERROR, "Failed to initialize event loop"); return -1; } if (auth_init_group(&wpa) < 0) return -1; if (supp_init(&wpa) < 0) return -1; if (auth_init(&wpa) < 0) return -1; wpa_printf(MSG_DEBUG, "Starting eloop"); eloop_run(); wpa_printf(MSG_DEBUG, "eloop done"); deinit(&wpa); eloop_destroy(); os_program_deinit(); return 0; }