Jouni Malinen | fa201b6 | 2008-11-28 19:46:22 +0200 | [diff] [blame] | 1 | /* |
| 2 | * wpa_supplicant / WPS integration |
| 3 | * Copyright (c) 2008, Jouni Malinen <j@w1.fi> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * Alternatively, this software may be distributed under the terms of BSD |
| 10 | * license. |
| 11 | * |
| 12 | * See README and COPYING for more details. |
| 13 | */ |
| 14 | |
| 15 | #include "includes.h" |
| 16 | |
| 17 | #include "common.h" |
| 18 | #include "ieee802_11_defs.h" |
| 19 | #include "wpa_common.h" |
| 20 | #include "config.h" |
| 21 | #include "wpa_supplicant_i.h" |
| 22 | #include "wps/wps.h" |
| 23 | #include "wps/wps_defs.h" |
| 24 | #include "wps_supplicant.h" |
| 25 | |
| 26 | |
| 27 | int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s) |
| 28 | { |
| 29 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid && |
| 30 | !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { |
| 31 | wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - " |
| 32 | "try to associate with the received credential"); |
| 33 | wpa_supplicant_deauthenticate(wpa_s, |
| 34 | WLAN_REASON_DEAUTH_LEAVING); |
| 35 | wpa_s->reassociate = 1; |
| 36 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
| 37 | return 1; |
| 38 | } |
| 39 | |
| 40 | return 0; |
| 41 | } |
| 42 | |
| 43 | |
Jouni Malinen | bcbbc7a | 2008-11-28 20:02:32 +0200 | [diff] [blame] | 44 | static int wpa_supplicant_wps_cred(void *ctx, |
| 45 | const struct wps_credential *cred) |
Jouni Malinen | fa201b6 | 2008-11-28 19:46:22 +0200 | [diff] [blame] | 46 | { |
| 47 | struct wpa_supplicant *wpa_s = ctx; |
| 48 | struct wpa_ssid *ssid = wpa_s->current_ssid; |
| 49 | |
| 50 | wpa_msg(wpa_s, MSG_INFO, "WPS: New credential received"); |
| 51 | |
| 52 | if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { |
| 53 | wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based " |
| 54 | "on the received credential"); |
| 55 | os_free(ssid->eap.identity); |
| 56 | ssid->eap.identity = NULL; |
| 57 | ssid->eap.identity_len = 0; |
| 58 | os_free(ssid->eap.phase1); |
| 59 | ssid->eap.phase1 = NULL; |
| 60 | os_free(ssid->eap.eap_methods); |
| 61 | ssid->eap.eap_methods = NULL; |
| 62 | } else { |
| 63 | wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the " |
| 64 | "received credential"); |
| 65 | ssid = wpa_config_add_network(wpa_s->conf); |
| 66 | if (ssid == NULL) |
| 67 | return -1; |
| 68 | } |
| 69 | |
| 70 | wpa_config_set_network_defaults(ssid); |
| 71 | |
| 72 | os_free(ssid->ssid); |
| 73 | ssid->ssid = os_malloc(cred->ssid_len); |
| 74 | if (ssid->ssid) { |
| 75 | os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len); |
| 76 | ssid->ssid_len = cred->ssid_len; |
| 77 | } |
| 78 | |
| 79 | switch (cred->encr_type) { |
| 80 | case WPS_ENCR_NONE: |
| 81 | ssid->pairwise_cipher = ssid->group_cipher = WPA_CIPHER_NONE; |
| 82 | break; |
| 83 | case WPS_ENCR_WEP: |
| 84 | ssid->pairwise_cipher = ssid->group_cipher = |
| 85 | WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104; |
| 86 | if (cred->key_len > 0 && cred->key_len <= MAX_WEP_KEY_LEN && |
| 87 | cred->key_idx < NUM_WEP_KEYS) { |
| 88 | os_memcpy(ssid->wep_key[cred->key_idx], cred->key, |
| 89 | cred->key_len); |
| 90 | ssid->wep_key_len[cred->key_idx] = cred->key_len; |
| 91 | ssid->wep_tx_keyidx = cred->key_idx; |
| 92 | } |
| 93 | break; |
| 94 | case WPS_ENCR_TKIP: |
| 95 | ssid->pairwise_cipher = WPA_CIPHER_TKIP; |
| 96 | ssid->group_cipher = WPA_CIPHER_TKIP; |
| 97 | break; |
| 98 | case WPS_ENCR_AES: |
| 99 | ssid->pairwise_cipher = WPA_CIPHER_CCMP; |
| 100 | ssid->group_cipher = WPA_CIPHER_CCMP | WPA_CIPHER_TKIP; |
| 101 | break; |
| 102 | } |
| 103 | |
| 104 | switch (cred->auth_type) { |
| 105 | case WPS_AUTH_OPEN: |
| 106 | ssid->auth_alg = WPA_AUTH_ALG_OPEN; |
| 107 | ssid->key_mgmt = WPA_KEY_MGMT_NONE; |
| 108 | ssid->proto = 0; |
| 109 | break; |
| 110 | case WPS_AUTH_SHARED: |
| 111 | ssid->auth_alg = WPA_AUTH_ALG_SHARED; |
| 112 | ssid->key_mgmt = WPA_KEY_MGMT_NONE; |
| 113 | ssid->proto = 0; |
| 114 | break; |
| 115 | case WPS_AUTH_WPAPSK: |
| 116 | ssid->auth_alg = WPA_AUTH_ALG_OPEN; |
| 117 | ssid->key_mgmt = WPA_KEY_MGMT_PSK; |
| 118 | ssid->proto = WPA_PROTO_WPA; |
| 119 | break; |
| 120 | case WPS_AUTH_WPA: |
| 121 | ssid->auth_alg = WPA_AUTH_ALG_OPEN; |
| 122 | ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X; |
| 123 | ssid->proto = WPA_PROTO_WPA; |
| 124 | break; |
| 125 | case WPS_AUTH_WPA2: |
| 126 | ssid->auth_alg = WPA_AUTH_ALG_OPEN; |
| 127 | ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X; |
| 128 | ssid->proto = WPA_PROTO_RSN; |
| 129 | break; |
| 130 | case WPS_AUTH_WPA2PSK: |
| 131 | ssid->auth_alg = WPA_AUTH_ALG_OPEN; |
| 132 | ssid->key_mgmt = WPA_KEY_MGMT_PSK; |
| 133 | ssid->proto = WPA_PROTO_RSN; |
| 134 | break; |
| 135 | } |
| 136 | |
| 137 | if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) { |
| 138 | if (cred->key_len == 2 * PMK_LEN) { |
| 139 | if (hexstr2bin((const char *) cred->key, ssid->psk, |
| 140 | PMK_LEN)) { |
| 141 | wpa_printf(MSG_ERROR, "WPS: Invalid Network " |
| 142 | "Key"); |
| 143 | return -1; |
| 144 | } |
| 145 | ssid->psk_set = 1; |
| 146 | } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) { |
| 147 | os_free(ssid->passphrase); |
| 148 | ssid->passphrase = os_malloc(cred->key_len + 1); |
| 149 | if (ssid->passphrase == NULL) |
| 150 | return -1; |
| 151 | os_memcpy(ssid->passphrase, cred->key, cred->key_len); |
| 152 | ssid->passphrase[cred->key_len] = '\0'; |
| 153 | wpa_config_update_psk(ssid); |
| 154 | } else { |
| 155 | wpa_printf(MSG_ERROR, "WPS: Invalid Network Key " |
| 156 | "length %lu", |
| 157 | (unsigned long) cred->key_len); |
| 158 | return -1; |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | #ifndef CONFIG_NO_CONFIG_WRITE |
| 163 | if (wpa_s->conf->update_config && |
| 164 | wpa_config_write(wpa_s->confname, wpa_s->conf)) { |
| 165 | wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration"); |
| 166 | return -1; |
| 167 | } |
| 168 | #endif /* CONFIG_NO_CONFIG_WRITE */ |
| 169 | |
| 170 | return 0; |
| 171 | } |
| 172 | |
| 173 | |
| 174 | void * wpas_wps_get_cred_cb(void) |
| 175 | { |
| 176 | return wpa_supplicant_wps_cred; |
| 177 | } |
Jouni Malinen | 116654c | 2008-11-28 20:32:13 +0200 | [diff] [blame^] | 178 | |
| 179 | |
| 180 | int wpas_wps_init(struct wpa_supplicant *wpa_s) |
| 181 | { |
| 182 | struct wps_context *wps; |
| 183 | |
| 184 | wps = os_zalloc(sizeof(*wps)); |
| 185 | if (wps == NULL) |
| 186 | return -1; |
| 187 | |
| 188 | wps->cred_cb = wpa_supplicant_wps_cred; |
| 189 | wps->cb_ctx = wpa_s; |
| 190 | |
| 191 | /* TODO: make the device data configurable */ |
| 192 | wps->dev.device_name = "dev name"; |
| 193 | wps->dev.manufacturer = "manuf"; |
| 194 | wps->dev.model_name = "model name"; |
| 195 | wps->dev.model_number = "model number"; |
| 196 | wps->dev.serial_number = "12345"; |
| 197 | wps->dev.categ = WPS_DEV_COMPUTER; |
| 198 | wps->dev.oui = WPS_DEV_OUI_WFA; |
| 199 | wps->dev.sub_categ = WPS_DEV_COMPUTER_PC; |
| 200 | |
| 201 | wpa_s->wps = wps; |
| 202 | |
| 203 | return 0; |
| 204 | } |
| 205 | |
| 206 | |
| 207 | void wpas_wps_deinit(struct wpa_supplicant *wpa_s) |
| 208 | { |
| 209 | if (wpa_s->wps == NULL) |
| 210 | return; |
| 211 | |
| 212 | os_free(wpa_s->wps->network_key); |
| 213 | os_free(wpa_s->wps); |
| 214 | wpa_s->wps = NULL; |
| 215 | } |