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authorNeels Hofmeyr <nhofmeyr@sysmocom.de>2016-08-12 16:03:09 +0200
committerNeels Hofmeyr <nhofmeyr@sysmocom.de>2017-03-09 18:34:15 +0100
commitc8c35eea0926f5a753ac7e661a276469c7432913 (patch)
tree69495a3d8318b4e35d6d6fe85f887a43f546086f
parent60d67846ddc034c8867495c7e0255a5286d1117b (diff)
Iu auth wip
-rw-r--r--openbsc/src/libmsc/gsm_04_08.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/openbsc/src/libmsc/gsm_04_08.c b/openbsc/src/libmsc/gsm_04_08.c
index c6211ee..cf16fcc 100644
--- a/openbsc/src/libmsc/gsm_04_08.c
+++ b/openbsc/src/libmsc/gsm_04_08.c
@@ -31,6 +31,7 @@
#include <netinet/in.h>
#include <regex.h>
#include <sys/types.h>
+#include <openssl/rand.h>
#include "bscconfig.h"
@@ -69,6 +70,7 @@
#include <osmocom/core/talloc.h>
#include <osmocom/core/utils.h>
#include <osmocom/gsm/tlv.h>
+#include <osmocom/crypt/auth.h>
#include <assert.h>
@@ -174,6 +176,29 @@ void allocate_security_operation(struct gsm_subscriber_connection *conn)
subscr_con_get(conn);
}
+int iu_hack__get_hardcoded_auth_tuple(struct gsm_auth_tuple *atuple)
+{
+ unsigned char tmp_rand[16];
+ /* Ki 000102030405060708090a0b0c0d0e0f */
+ struct osmo_sub_auth_data auth = {
+ .type = OSMO_AUTH_TYPE_GSM,
+ .algo = OSMO_AUTH_ALG_COMP128v1,
+ .u.gsm.ki = {
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
+ 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d,
+ 0x0e, 0x0f
+ },
+ };
+
+ RAND_bytes(tmp_rand, sizeof(tmp_rand));
+
+ memset(&atuple->vec, 0, sizeof(atuple->vec));
+ osmo_auth_gen_vec(&atuple->vec, &auth, tmp_rand);
+
+ atuple->key_seq = 0;
+ return AUTH_DO_AUTH;
+}
+
int gsm48_secure_channel(struct gsm_subscriber_connection *conn, int key_seq,
gsm_cbfn *cb, void *cb_data)
{