milenage_test: enhance to verify new SQN increments

After the legacy mode incrementing with ind_bitlen == 0 is through, do another
AUTS run with sensible ind_bitlen and ind, and then two more normal vector
generations to verify proper SQN increments.

Related: OS#1968
Change-Id: Id6947899ff7b1c82b939f969e163e51ce282bce2

1 files changed, 28 insertions, 0 deletions

diff --git a/tests/auth/milenage_test.c b/tests/auth/milenage_test.c
index 7aada36b..b4c2c79b 100644
--- a/tests/auth/milenage_test.c
+++ b/tests/auth/milenage_test.c
@@ -104,6 +104,34 @@ int main(int argc, char **argv)
 		       test_aud.u.umts.sqn);
 	}
 
+	/* Now test SQN incrementing scheme using SEQ and IND parts:
+	 * with ind_bitlen == 5 and ind == 10, the next SQN after 31 is
+	 * 32 + 10 == 42. */
+	test_aud.u.umts.ind_bitlen = 5;
+	test_aud.u.umts.ind = 10;
+	rc = osmo_auth_gen_vec_auts(vec, &test_aud, auts, _rand, _rand);
+	if (rc < 0)
+		printf("AUTS failed\n");
+	else
+		printf("AUTS success: tuple generated with SQN = %" PRIu64 "\n",
+		       test_aud.u.umts.sqn);
+
+	/* And the one after that is 64 + 10 == 74 */
+	rc = osmo_auth_gen_vec(vec, &test_aud, _rand);
+	if (rc < 0)
+		printf("generating vector failed\n");
+	else
+		printf("tuple generated with SQN = %" PRIu64 "\n",
+		       test_aud.u.umts.sqn);
+
+	/* And the one after *that* is 96 + 10 == 106 */
+	rc = osmo_auth_gen_vec(vec, &test_aud, _rand);
+	if (rc < 0)
+		printf("generating vector failed\n");
+	else
+		printf("tuple generated with SQN = %" PRIu64 "\n",
+		       test_aud.u.umts.sqn);
+
 	opc_test(&test_aud);
 
 	exit(0);