The Android Open Source Project | 845e012 | 2009-03-03 19:31:34 -0800 | [diff] [blame] | 1 | /* |
| 2 | * WPA Supplicant / TLS interface functions and an internal TLS implementation |
| 3 | * Copyright (c) 2004-2006, 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 | * This file interface functions for hostapd/wpa_supplicant to use the |
| 15 | * integrated TLSv1 implementation. |
| 16 | */ |
| 17 | |
| 18 | #include "includes.h" |
| 19 | |
| 20 | #include "common.h" |
| 21 | #include "tls.h" |
| 22 | #include "tlsv1_client.h" |
| 23 | |
| 24 | |
| 25 | static int tls_ref_count = 0; |
| 26 | |
| 27 | struct tls_global { |
| 28 | int dummy; |
| 29 | }; |
| 30 | |
| 31 | struct tls_connection { |
| 32 | struct tlsv1_client *client; |
| 33 | }; |
| 34 | |
| 35 | |
| 36 | void * tls_init(const struct tls_config *conf) |
| 37 | { |
| 38 | struct tls_global *global; |
| 39 | |
| 40 | if (tls_ref_count == 0) { |
| 41 | if (tlsv1_client_global_init()) |
| 42 | return NULL; |
| 43 | } |
| 44 | tls_ref_count++; |
| 45 | |
| 46 | global = os_zalloc(sizeof(*global)); |
| 47 | if (global == NULL) |
| 48 | return NULL; |
| 49 | |
| 50 | return global; |
| 51 | } |
| 52 | |
| 53 | void tls_deinit(void *ssl_ctx) |
| 54 | { |
| 55 | struct tls_global *global = ssl_ctx; |
| 56 | tls_ref_count--; |
| 57 | if (tls_ref_count == 0) { |
| 58 | tlsv1_client_global_deinit(); |
| 59 | } |
| 60 | os_free(global); |
| 61 | } |
| 62 | |
| 63 | |
| 64 | int tls_get_errors(void *tls_ctx) |
| 65 | { |
| 66 | return 0; |
| 67 | } |
| 68 | |
| 69 | |
| 70 | struct tls_connection * tls_connection_init(void *tls_ctx) |
| 71 | { |
| 72 | struct tls_connection *conn; |
| 73 | |
| 74 | conn = os_zalloc(sizeof(*conn)); |
| 75 | if (conn == NULL) |
| 76 | return NULL; |
| 77 | |
| 78 | conn->client = tlsv1_client_init(); |
| 79 | if (conn->client == NULL) { |
| 80 | os_free(conn); |
| 81 | return NULL; |
| 82 | } |
| 83 | |
| 84 | return conn; |
| 85 | } |
| 86 | |
| 87 | |
| 88 | void tls_connection_deinit(void *tls_ctx, struct tls_connection *conn) |
| 89 | { |
| 90 | if (conn == NULL) |
| 91 | return; |
| 92 | tlsv1_client_deinit(conn->client); |
| 93 | os_free(conn); |
| 94 | } |
| 95 | |
| 96 | |
| 97 | int tls_connection_established(void *tls_ctx, struct tls_connection *conn) |
| 98 | { |
| 99 | return tlsv1_client_established(conn->client); |
| 100 | } |
| 101 | |
| 102 | |
| 103 | int tls_connection_shutdown(void *tls_ctx, struct tls_connection *conn) |
| 104 | { |
| 105 | return tlsv1_client_shutdown(conn->client); |
| 106 | } |
| 107 | |
| 108 | |
| 109 | int tls_connection_set_params(void *tls_ctx, struct tls_connection *conn, |
| 110 | const struct tls_connection_params *params) |
| 111 | { |
| 112 | if (tlsv1_client_set_ca_cert(conn->client, params->ca_cert, |
| 113 | params->ca_cert_blob, |
| 114 | params->ca_cert_blob_len, |
| 115 | params->ca_path)) { |
| 116 | wpa_printf(MSG_INFO, "TLS: Failed to configure trusted CA " |
| 117 | "certificates"); |
| 118 | return -1; |
| 119 | } |
| 120 | |
| 121 | if (tlsv1_client_set_client_cert(conn->client, params->client_cert, |
| 122 | params->client_cert_blob, |
| 123 | params->client_cert_blob_len)) { |
| 124 | wpa_printf(MSG_INFO, "TLS: Failed to configure client " |
| 125 | "certificate"); |
| 126 | return -1; |
| 127 | } |
| 128 | |
| 129 | if (tlsv1_client_set_private_key(conn->client, |
| 130 | params->private_key, |
| 131 | params->private_key_passwd, |
| 132 | params->private_key_blob, |
| 133 | params->private_key_blob_len)) { |
| 134 | wpa_printf(MSG_INFO, "TLS: Failed to load private key"); |
| 135 | return -1; |
| 136 | } |
| 137 | |
| 138 | return 0; |
| 139 | } |
| 140 | |
| 141 | |
| 142 | int tls_global_set_params(void *tls_ctx, |
| 143 | const struct tls_connection_params *params) |
| 144 | { |
| 145 | wpa_printf(MSG_INFO, "TLS: not implemented - %s", __func__); |
| 146 | return -1; |
| 147 | } |
| 148 | |
| 149 | |
| 150 | int tls_global_set_verify(void *tls_ctx, int check_crl) |
| 151 | { |
| 152 | wpa_printf(MSG_INFO, "TLS: not implemented - %s", __func__); |
| 153 | return -1; |
| 154 | } |
| 155 | |
| 156 | |
| 157 | int tls_connection_set_verify(void *tls_ctx, struct tls_connection *conn, |
| 158 | int verify_peer) |
| 159 | { |
| 160 | return -1; |
| 161 | } |
| 162 | |
| 163 | |
| 164 | int tls_connection_set_ia(void *tls_ctx, struct tls_connection *conn, |
| 165 | int tls_ia) |
| 166 | { |
| 167 | return -1; |
| 168 | } |
| 169 | |
| 170 | |
| 171 | int tls_connection_get_keys(void *tls_ctx, struct tls_connection *conn, |
| 172 | struct tls_keys *keys) |
| 173 | { |
| 174 | return tlsv1_client_get_keys(conn->client, keys); |
| 175 | } |
| 176 | |
| 177 | |
| 178 | int tls_connection_prf(void *tls_ctx, struct tls_connection *conn, |
| 179 | const char *label, int server_random_first, |
| 180 | u8 *out, size_t out_len) |
| 181 | { |
| 182 | return tlsv1_client_prf(conn->client, label, server_random_first, |
| 183 | out, out_len); |
| 184 | } |
| 185 | |
| 186 | |
| 187 | u8 * tls_connection_handshake(void *tls_ctx, struct tls_connection *conn, |
| 188 | const u8 *in_data, size_t in_len, |
| 189 | size_t *out_len, u8 **appl_data, |
| 190 | size_t *appl_data_len) |
| 191 | { |
| 192 | if (appl_data) |
| 193 | *appl_data = NULL; |
| 194 | |
| 195 | wpa_printf(MSG_DEBUG, "TLS: %s(in_data=%p in_len=%lu)", |
| 196 | __func__, in_data, (unsigned long) in_len); |
| 197 | return tlsv1_client_handshake(conn->client, in_data, in_len, out_len); |
| 198 | } |
| 199 | |
| 200 | |
| 201 | u8 * tls_connection_server_handshake(void *tls_ctx, |
| 202 | struct tls_connection *conn, |
| 203 | const u8 *in_data, size_t in_len, |
| 204 | size_t *out_len) |
| 205 | { |
| 206 | wpa_printf(MSG_INFO, "TLS: not implemented - %s", __func__); |
| 207 | return NULL; |
| 208 | } |
| 209 | |
| 210 | |
| 211 | int tls_connection_encrypt(void *tls_ctx, struct tls_connection *conn, |
| 212 | const u8 *in_data, size_t in_len, |
| 213 | u8 *out_data, size_t out_len) |
| 214 | { |
| 215 | return tlsv1_client_encrypt(conn->client, in_data, in_len, out_data, |
| 216 | out_len); |
| 217 | } |
| 218 | |
| 219 | |
| 220 | int tls_connection_decrypt(void *tls_ctx, struct tls_connection *conn, |
| 221 | const u8 *in_data, size_t in_len, |
| 222 | u8 *out_data, size_t out_len) |
| 223 | { |
| 224 | return tlsv1_client_decrypt(conn->client, in_data, in_len, out_data, |
| 225 | out_len); |
| 226 | } |
| 227 | |
| 228 | |
| 229 | int tls_connection_resumed(void *tls_ctx, struct tls_connection *conn) |
| 230 | { |
| 231 | return tlsv1_client_resumed(conn->client); |
| 232 | } |
| 233 | |
| 234 | |
| 235 | int tls_connection_set_master_key(void *tls_ctx, struct tls_connection *conn, |
| 236 | const u8 *key, size_t key_len) |
| 237 | { |
| 238 | return tlsv1_client_set_master_key(conn->client, key, key_len); |
| 239 | } |
| 240 | |
| 241 | |
| 242 | int tls_connection_set_cipher_list(void *tls_ctx, struct tls_connection *conn, |
| 243 | u8 *ciphers) |
| 244 | { |
| 245 | return tlsv1_client_set_cipher_list(conn->client, ciphers); |
| 246 | } |
| 247 | |
| 248 | |
| 249 | int tls_get_cipher(void *tls_ctx, struct tls_connection *conn, |
| 250 | char *buf, size_t buflen) |
| 251 | { |
| 252 | if (conn == NULL) |
| 253 | return -1; |
| 254 | return tlsv1_client_get_cipher(conn->client, buf, buflen); |
| 255 | } |
| 256 | |
| 257 | |
| 258 | int tls_connection_enable_workaround(void *tls_ctx, |
| 259 | struct tls_connection *conn) |
| 260 | { |
| 261 | return -1; |
| 262 | } |
| 263 | |
| 264 | |
| 265 | int tls_connection_client_hello_ext(void *tls_ctx, struct tls_connection *conn, |
| 266 | int ext_type, const u8 *data, |
| 267 | size_t data_len) |
| 268 | { |
| 269 | return tlsv1_client_hello_ext(conn->client, ext_type, data, data_len); |
| 270 | } |
| 271 | |
| 272 | |
| 273 | int tls_connection_get_failed(void *tls_ctx, struct tls_connection *conn) |
| 274 | { |
| 275 | return 0; |
| 276 | } |
| 277 | |
| 278 | |
| 279 | int tls_connection_get_read_alerts(void *tls_ctx, struct tls_connection *conn) |
| 280 | { |
| 281 | return 0; |
| 282 | } |
| 283 | |
| 284 | |
| 285 | int tls_connection_get_write_alerts(void *tls_ctx, |
| 286 | struct tls_connection *conn) |
| 287 | { |
| 288 | return 0; |
| 289 | } |
| 290 | |
| 291 | |
| 292 | int tls_connection_get_keyblock_size(void *tls_ctx, |
| 293 | struct tls_connection *conn) |
| 294 | { |
| 295 | return tlsv1_client_get_keyblock_size(conn->client); |
| 296 | } |
| 297 | |
| 298 | |
| 299 | unsigned int tls_capabilities(void *tls_ctx) |
| 300 | { |
| 301 | return 0; |
| 302 | } |
| 303 | |
| 304 | |
| 305 | int tls_connection_ia_send_phase_finished(void *tls_ctx, |
| 306 | struct tls_connection *conn, |
| 307 | int final, |
| 308 | u8 *out_data, size_t out_len) |
| 309 | { |
| 310 | return -1; |
| 311 | } |
| 312 | |
| 313 | |
| 314 | int tls_connection_ia_final_phase_finished(void *tls_ctx, |
| 315 | struct tls_connection *conn) |
| 316 | { |
| 317 | return -1; |
| 318 | } |
| 319 | |
| 320 | |
| 321 | int tls_connection_ia_permute_inner_secret(void *tls_ctx, |
| 322 | struct tls_connection *conn, |
| 323 | const u8 *key, size_t key_len) |
| 324 | { |
| 325 | return -1; |
| 326 | } |