[sccp] Implement parsing the rather easy IT messages.
diff --git a/openbsc/tests/sccp/sccp_test.c b/openbsc/tests/sccp/sccp_test.c
index 553544d..38c14e4 100644
--- a/openbsc/tests/sccp/sccp_test.c
+++ b/openbsc/tests/sccp/sccp_test.c
@@ -242,6 +242,52 @@
},
};
+struct sccp_parse_header_result {
+ /* results */
+ int msg_type;
+ int wanted_len;
+ int src_ssn;
+ int dst_ssn;
+
+ int has_src_ref, has_dst_ref;
+ struct sccp_source_reference src_ref;
+ struct sccp_source_reference dst_ref;
+
+ /* the input */
+ const u_int8_t *input;
+ int input_len;
+};
+
+static const u_int8_t it_test[] = {
+0x10, 0x01, 0x07,
+0x94, 0x01, 0x04, 0x00, 0x02, 0x00, 0x00, 0x00 };
+
+static const struct sccp_parse_header_result parse_result[] = {
+ {
+ .msg_type = SCCP_MSG_TYPE_IT,
+ .wanted_len = 0,
+ .src_ssn = -1,
+ .dst_ssn = -1,
+ .has_src_ref = 1,
+ .has_dst_ref = 1,
+
+ .src_ref = {
+ .octet1 = 0x01,
+ .octet2 = 0x04,
+ .octet3 = 0x00
+ },
+ .dst_ref = {
+ .octet1 = 0x01,
+ .octet2 = 0x07,
+ .octet3 = 0x94,
+ },
+
+ .input = it_test,
+ .input_len = sizeof(it_test),
+ },
+};
+
+
/* testing procedure:
* - we will use sccp_write and see what will be set in the
* outgoing callback
@@ -712,6 +758,59 @@
printf("survived\n");
}
+static void test_sccp_parsing(void)
+{
+ for (current_test = 0; current_test < ARRAY_SIZE(parse_result); ++current_test) {
+ struct msgb *msg;
+ struct sccp_parse_result result;
+
+ msg = msgb_alloc_headroom(1024, 128, "parse-test");
+ msgb_put(msg, 1);
+ msg->l2h = msgb_put(msg, parse_result[current_test].input_len);
+ memcpy(msg->l2h, parse_result[current_test].input, msgb_l2len(msg));
+
+ memset(&result, 0, sizeof(result));
+ if (sccp_parse_header(msg, &result) != 0) {
+ fprintf(stderr, "Failed to parse test: %d\n", current_test);
+ } else {
+ if (parse_result[current_test].wanted_len != result.data_len) {
+ fprintf(stderr, "Unexpected data length.\n");
+ abort();
+ }
+
+ if (parse_result[current_test].has_src_ref) {
+ if (memcmp(result.source_local_reference,
+ &parse_result[current_test].src_ref,
+ sizeof(struct sccp_source_reference)) != 0) {
+ fprintf(stderr, "SRC REF did not match\n");
+ abort();
+ }
+ }
+
+ if (parse_result[current_test].has_dst_ref) {
+ if (memcmp(result.destination_local_reference,
+ &parse_result[current_test].dst_ref,
+ sizeof(struct sccp_source_reference)) != 0) {
+ fprintf(stderr, "DST REF did not match\n");
+ abort();
+ }
+ }
+
+ if (parse_result[current_test].src_ssn != -1) {
+ fprintf(stderr, "Not implemented.\n");
+ abort();
+ }
+
+ if (parse_result[current_test].dst_ssn != -1) {
+ fprintf(stderr, "Not implemented.\n");
+ abort();
+ }
+ }
+
+ msgb_free(msg);
+ }
+}
+
int main(int argc, char **argv)
{
@@ -720,6 +819,7 @@
test_sccp_udt_communication();
test_sccp_connection();
test_sccp_system_crash();
+ test_sccp_parsing();
return 0;
}