move openbsc/* to repos root

This is the first step in creating this repository from the legacy openbsc.git.

Like all other Osmocom repositories, keep the autoconf and automake files in
the repository root. openbsc.git has been the sole exception, which ends now.

Change-Id: I9c6f2a448d9cb1cc088cf1cf6918b69d7e69b4e7

1 files changed, 0 insertions, 157 deletions

diff --git a/openbsc/src/libmsc/auth.c b/openbsc/src/libmsc/auth.c
deleted file mode 100644
index 19def1ec1..000000000
--- a/openbsc/src/libmsc/auth.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/* Authentication related functions */
-
-/*
- * (C) 2010 by Sylvain Munaut <tnt@246tNt.com>
- *
- * 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 <openbsc/db.h>
-#include <openbsc/debug.h>
-#include <openbsc/auth.h>
-#include <openbsc/gsm_data.h>
-
-#include <osmocom/gsm/comp128.h>
-#include <osmocom/core/utils.h>
-
-#include <openssl/rand.h>
-
-#include <stdlib.h>
-
-const struct value_string auth_action_names[] = {
-	OSMO_VALUE_STRING(AUTH_ERROR),
-	OSMO_VALUE_STRING(AUTH_NOT_AVAIL),
-	OSMO_VALUE_STRING(AUTH_DO_AUTH_THEN_CIPH),
-	OSMO_VALUE_STRING(AUTH_DO_CIPH),
-	OSMO_VALUE_STRING(AUTH_DO_AUTH),
-	{ 0, NULL }
-};
-
-static int
-_use_xor(struct gsm_auth_info *ainfo, struct gsm_auth_tuple *atuple)
-{
-	int i, l = ainfo->a3a8_ki_len;
-
-	if ((l > A38_XOR_MAX_KEY_LEN) || (l < A38_XOR_MIN_KEY_LEN)) {
-		LOGP(DMM, LOGL_ERROR, "Invalid XOR key (len=%d) %s\n",
-			ainfo->a3a8_ki_len,
-			osmo_hexdump(ainfo->a3a8_ki, ainfo->a3a8_ki_len));
-		return -1;
-	}
-
-	for (i=0; i<4; i++)
-		atuple->vec.sres[i] = atuple->vec.rand[i] ^ ainfo->a3a8_ki[i];
-	for (i=4; i<12; i++)
-		atuple->vec.kc[i-4] = atuple->vec.rand[i] ^ ainfo->a3a8_ki[i];
-
-	return 0;
-}
-
-static int
-_use_comp128_v1(struct gsm_auth_info *ainfo, struct gsm_auth_tuple *atuple)
-{
-	if (ainfo->a3a8_ki_len != A38_COMP128_KEY_LEN) {
-		LOGP(DMM, LOGL_ERROR, "Invalid COMP128v1 key (len=%d) %s\n",
-			ainfo->a3a8_ki_len,
-			osmo_hexdump(ainfo->a3a8_ki, ainfo->a3a8_ki_len));
-		return -1;
-	}
-
-	comp128(ainfo->a3a8_ki, atuple->vec.rand, atuple->vec.sres, atuple->vec.kc);
-
-	return 0;
-}
-
-/* Return values 
- *  -1 -> Internal error
- *   0 -> Not available
- *   1 -> Tuple returned, need to do auth, then enable cipher
- *   2 -> Tuple returned, need to enable cipher
- */
-int auth_get_tuple_for_subscr(struct gsm_auth_tuple *atuple,
-                              struct gsm_subscriber *subscr, int key_seq)
-{
-	struct gsm_auth_info ainfo;
-	int rc;
-
-	/* Get subscriber info (if any) */
-	rc = db_get_authinfo_for_subscr(&ainfo, subscr);
-	if (rc < 0) {
-		LOGP(DMM, LOGL_NOTICE,
-		     "No retrievable Ki for subscriber %s, skipping auth\n",
-		     subscr_name(subscr));
-		return rc == -ENOENT ? AUTH_NOT_AVAIL : AUTH_ERROR;
-	}
-
-	/* If possible, re-use the last tuple and skip auth */
-	rc = db_get_lastauthtuple_for_subscr(atuple, subscr);
-	if ((rc == 0) &&
-	    (key_seq != GSM_KEY_SEQ_INVAL) &&
-	    (key_seq == atuple->key_seq) &&
-	    (atuple->use_count < 3))
-	{
-		atuple->use_count++;
-		db_sync_lastauthtuple_for_subscr(atuple, subscr);
-		DEBUGP(DMM, "Auth tuple use < 3, just doing ciphering\n");
-		return AUTH_DO_CIPH;
-	}
-
-	/* Generate a new one */
-	if (rc != 0) {
-		/* If db_get_lastauthtuple_for_subscr() returned nothing, make
-		 * sure the atuple memory is initialized to zero and thus start
-		 * off with key_seq = 0. */
-		memset(atuple, 0, sizeof(*atuple));
-	} else {
-		/* If db_get_lastauthtuple_for_subscr() returned a previous
-		 * tuple, use the next key_seq. */
-		atuple->key_seq = (atuple->key_seq + 1) % 7;
-	}
-	atuple->use_count = 1;
-
-	if (RAND_bytes(atuple->vec.rand, sizeof(atuple->vec.rand)) != 1) {
-		LOGP(DMM, LOGL_NOTICE, "RAND_bytes failed, can't generate new auth tuple\n");
-		return AUTH_ERROR;
-	}
-
-	switch (ainfo.auth_algo) {
-	case AUTH_ALGO_NONE:
-		DEBUGP(DMM, "No authentication for subscriber\n");
-		return AUTH_NOT_AVAIL;
-
-	case AUTH_ALGO_XOR:
-		if (_use_xor(&ainfo, atuple))
-			return AUTH_NOT_AVAIL;
-		break;
-
-	case AUTH_ALGO_COMP128v1:
-		if (_use_comp128_v1(&ainfo, atuple))
-			return AUTH_NOT_AVAIL;
-		break;
-
-	default:
-		DEBUGP(DMM, "Unsupported auth type algo_id=%d\n",
-			ainfo.auth_algo);
-		return AUTH_NOT_AVAIL;
-	}
-
-        db_sync_lastauthtuple_for_subscr(atuple, subscr);
-
-	DEBUGP(DMM, "Need to do authentication and ciphering\n");
-	return AUTH_DO_AUTH_THEN_CIPH;
-}
-