2013-04-25 18:25:31 +00:00
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/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2013, Digium, Inc.
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*
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* Mark Michelson <mmichelson@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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2013-04-26 21:52:06 +00:00
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/*** MODULEINFO
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<depend>pjproject</depend>
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<depend>res_sip</depend>
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<support_level>core</support_level>
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***/
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2013-04-25 18:25:31 +00:00
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#include "asterisk.h"
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#include <pjsip.h>
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#include "asterisk/res_sip.h"
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#include "asterisk/logger.h"
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#include "asterisk/module.h"
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#include "asterisk/strings.h"
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static int set_outbound_authentication_credentials(pjsip_auth_clt_sess *auth_sess, const char **auth_strs, size_t num_auths)
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{
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struct ast_sip_auth **auths = ast_alloca(num_auths * sizeof(*auths));
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pjsip_cred_info *auth_creds = ast_alloca(num_auths * sizeof(*auth_creds));
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int res = 0;
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int i;
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if (ast_sip_retrieve_auths(auth_strs, num_auths, auths)) {
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res = -1;
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goto cleanup;
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}
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for (i = 0; i < num_auths; ++i) {
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pj_cstr(&auth_creds[i].realm, auths[i]->realm);
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pj_cstr(&auth_creds[i].username, auths[i]->auth_user);
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pj_cstr(&auth_creds[i].scheme, "digest");
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switch (auths[i]->type) {
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case AST_SIP_AUTH_TYPE_USER_PASS:
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pj_cstr(&auth_creds[i].data, auths[i]->auth_pass);
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auth_creds[i].data_type = PJSIP_CRED_DATA_PLAIN_PASSWD;
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break;
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case AST_SIP_AUTH_TYPE_MD5:
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pj_cstr(&auth_creds[i].data, auths[i]->md5_creds);
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auth_creds[i].data_type = PJSIP_CRED_DATA_DIGEST;
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break;
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2013-07-02 17:06:06 +00:00
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case AST_SIP_AUTH_TYPE_ARTIFICIAL:
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ast_log(LOG_ERROR, "Trying to set artificial outbound auth credentials shouldn't happen.\n");
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break;
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2013-04-25 18:25:31 +00:00
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}
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}
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pjsip_auth_clt_set_credentials(auth_sess, num_auths, auth_creds);
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cleanup:
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ast_sip_cleanup_auths(auths, num_auths);
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return res;
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}
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static int digest_create_request_with_auth(const char **auths, size_t num_auths, pjsip_rx_data *challenge,
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pjsip_transaction *tsx, pjsip_tx_data **new_request)
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{
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pjsip_auth_clt_sess auth_sess;
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if (pjsip_auth_clt_init(&auth_sess, ast_sip_get_pjsip_endpoint(),
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tsx->pool, 0) != PJ_SUCCESS) {
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ast_log(LOG_WARNING, "Failed to initialize client authentication session\n");
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return -1;
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}
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if (set_outbound_authentication_credentials(&auth_sess, auths, num_auths)) {
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ast_log(LOG_WARNING, "Failed to set authentication credentials\n");
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return -1;
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}
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if (pjsip_auth_clt_reinit_req(&auth_sess, challenge,
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tsx->last_tx, new_request) != PJ_SUCCESS) {
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ast_log(LOG_WARNING, "Failed to create new request with authentication credentials\n");
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return -1;
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}
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return 0;
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}
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static struct ast_sip_outbound_authenticator digest_authenticator = {
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.create_request_with_auth = digest_create_request_with_auth,
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};
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static int load_module(void)
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{
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if (ast_sip_register_outbound_authenticator(&digest_authenticator)) {
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return AST_MODULE_LOAD_DECLINE;
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}
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return AST_MODULE_LOAD_SUCCESS;
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}
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static int unload_module(void)
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{
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ast_sip_unregister_outbound_authenticator(&digest_authenticator);
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return 0;
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "SIP authentication resource",
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.load = load_module,
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.unload = unload_module,
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.load_pri = AST_MODPRI_CHANNEL_DEPEND,
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);
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