Support cipher mode reject with extended cause
* add function to generate cipher mode reject with extended (2-byte)
Cause IE
* add function to get (extended) Cause value
* add corresponding (extended cause) test
* update existing (non-extended cause) test
* use enum as a parameter for existing non-extended version to make
interface more unified
Change-Id: Id5509b94a18180a44f45300caaa02b843c166fa3
Related: OS#3187
diff --git a/tests/gsm0808/gsm0808_test.c b/tests/gsm0808/gsm0808_test.c
index 671b839..197ec06 100644
--- a/tests/gsm0808/gsm0808_test.c
+++ b/tests/gsm0808/gsm0808_test.c
@@ -250,14 +250,55 @@
msgb_free(l3);
}
+static inline void parse_cipher_reject(struct msgb *msg, uint8_t exp)
+{
+ struct tlv_parsed tp;
+ int rc;
+
+ /* skip header and message type so we can parse Cause IE directly */
+ msg->l2h = msgb_data(msg) + sizeof(struct bssmap_header) + 1;
+
+ rc = osmo_bssap_tlv_parse(&tp, msg->l2h, msgb_l2len(msg));
+ if (rc < 0)
+ printf("FIXME: failed (%d) to parse created message %s\n", rc, msgb_hexdump(msg));
+
+ rc = gsm0808_get_cipher_reject_cause(&tp);
+ if (rc < 0)
+ printf("FIXME: failed (%s) to extract Cause from created message %s\n",
+ strerror(-rc), msgb_hexdump(msg));
+
+ if (exp != (enum gsm0808_cause)rc)
+ printf("FIXME: wrong Cause %d != %u (" OSMO_BIN_SPEC ") extracted from created message %s\n",
+ rc, exp, OSMO_BIT_PRINT(exp), msgb_hexdump(msg));
+}
+
static void test_create_cipher_reject()
{
static const uint8_t res[] = { 0x00, 0x04, 0x59, 0x04, 0x01, 0x23 };
+ enum gsm0808_cause cause = GSM0808_CAUSE_CCCH_OVERLOAD;
struct msgb *msg;
printf("Testing creating Cipher Reject\n");
- msg = gsm0808_create_cipher_reject(GSM0808_CAUSE_CCCH_OVERLOAD);
+ msg = gsm0808_create_cipher_reject(cause);
VERIFY(msg, res, ARRAY_SIZE(res));
+
+ parse_cipher_reject(msg, cause);
+
+ msgb_free(msg);
+}
+
+static void test_create_cipher_reject_ext()
+{
+ static const uint8_t res[] = { 0x00, 0x05, 0x59, 0x04, 0x02, 0xd0, 0xFA };
+ uint8_t cause = 0xFA;
+ struct msgb *msg;
+
+ printf("Testing creating Cipher Reject (extended)\n");
+ msg = gsm0808_create_cipher_reject_ext(GSM0808_CAUSE_CLASS_INVAL, cause);
+ VERIFY(msg, res, ARRAY_SIZE(res));
+
+ parse_cipher_reject(msg, cause);
+
msgb_free(msg);
}
@@ -1738,6 +1779,7 @@
test_create_cipher();
test_create_cipher_complete();
test_create_cipher_reject();
+ test_create_cipher_reject_ext();
test_create_cm_u();
test_create_sapi_reject();
test_create_ass();