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-rw-r--r--src/libmsc/token_auth.c160
1 files changed, 0 insertions, 160 deletions
diff --git a/src/libmsc/token_auth.c b/src/libmsc/token_auth.c
deleted file mode 100644
index 5af1e980..00000000
--- a/src/libmsc/token_auth.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/* SMS based token authentication for ad-hoc GSM networks */
-
-/* (C) 2009 by Harald Welte <laforge@gnumonks.org>
- *
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <stdio.h>
-#include <osmocom/core/talloc.h>
-#include <openbsc/signal.h>
-#include <openbsc/gsm_data.h>
-#include <openbsc/gsm_04_11.h>
-#include <openbsc/gsm_04_08.h>
-#include <openbsc/gsm_subscriber.h>
-#include <openbsc/chan_alloc.h>
-#include <openbsc/db.h>
-
-#define TOKEN_SMS_TEXT "HAR 2009 GSM. Register at http://har2009.gnumonks.org/ " \
- "Your IMSI is %s, auth token is %08X, phone no is %s."
-
-static char *build_sms_string(struct gsm_subscriber *subscr, uint32_t token)
-{
- char *sms_str;
- unsigned int len;
-
- len = strlen(subscr->imsi) + 8 + strlen(TOKEN_SMS_TEXT);
- sms_str = talloc_size(tall_bsc_ctx, len);
- if (!sms_str)
- return NULL;
-
- snprintf(sms_str, len, TOKEN_SMS_TEXT, subscr->imsi, token,
- subscr->extension);
- sms_str[len-1] = '\0';
-
- return sms_str;
-}
-
-static int token_subscr_cb(unsigned int subsys, unsigned int signal,
- void *handler_data, void *signal_data)
-{
- struct gsm_subscriber *subscr = signal_data;
- struct gsm_sms *sms;
- int rc = 0;
-
- if (signal != S_SUBSCR_ATTACHED)
- return 0;
-
- if (subscr->group->net->auth_policy != GSM_AUTH_POLICY_TOKEN)
- return 0;
-
- if (subscr->flags & GSM_SUBSCRIBER_FIRST_CONTACT) {
- struct gsm_subscriber *sender;
- uint32_t token;
- char *sms_str;
-
- /* we've seen this subscriber for the first time. */
- rc = db_subscriber_alloc_token(subscr, &token);
- if (rc != 0) {
- rc = -EIO;
- goto unauth;
- }
-
- sms_str = build_sms_string(subscr, token);
- if (!sms_str) {
- rc = -ENOMEM;
- goto unauth;
- }
-
-
- /* FIXME: don't use ID 1 static */
- sender = subscr_get_by_id(subscr->group, 1);
-
- sms = sms_from_text(subscr, sender, 0, sms_str);
-
- subscr_put(sender);
- talloc_free(sms_str);
- if (!sms) {
- rc = -ENOMEM;
- goto unauth;
- }
-
- rc = gsm411_send_sms_subscr(subscr, sms);
-
- /* FIXME: else, delete the subscirber from database */
-unauth:
-
- /* make sure we don't allow him in again unless he clicks the web UI */
- subscr->authorized = 0;
- db_sync_subscriber(subscr);
- if (rc) {
- struct gsm_subscriber_connection *conn = connection_for_subscr(subscr);
- if (conn) {
- uint8_t auth_rand[16];
- /* kick the subscriber off the network */
- gsm48_tx_mm_auth_req(conn, auth_rand, NULL, 0);
- gsm48_tx_mm_auth_rej(conn);
- /* FIXME: close the channel early ?*/
- //gsm48_send_rr_Release(lchan);
- }
- }
- }
-
- return rc;
-}
-
-static int token_sms_cb(unsigned int subsys, unsigned int signal,
- void *handler_data, void *signal_data)
-{
- struct sms_signal_data *sig = signal_data;
- struct gsm_sms *sms = sig->sms;;
- struct gsm_subscriber_connection *conn;
- uint8_t auth_rand[16];
-
-
- if (signal != S_SMS_DELIVERED)
- return 0;
-
-
- /* these are not the droids we've been looking for */
- if (!sms->receiver ||
- !(sms->receiver->flags & GSM_SUBSCRIBER_FIRST_CONTACT))
- return 0;
-
-
- if (sms->receiver->group->net->auth_policy != GSM_AUTH_POLICY_TOKEN)
- return 0;
-
-
- conn = connection_for_subscr(sms->receiver);
- if (conn) {
- /* kick the subscriber off the network */
- gsm48_tx_mm_auth_req(conn, auth_rand, NULL, 0);
- gsm48_tx_mm_auth_rej(conn);
- /* FIXME: close the channel early ?*/
- //gsm48_send_rr_Release(lchan);
- }
-
- return 0;
-}
-
-//static __attribute__((constructor)) void on_dso_load_token(void)
-void on_dso_load_token(void)
-{
- osmo_signal_register_handler(SS_SUBSCR, token_subscr_cb, NULL);
- osmo_signal_register_handler(SS_SMS, token_sms_cb, NULL);
-}