gtphub: add test for reused TEI.
Sponsored-by: On-Waves ehi
diff --git a/openbsc/tests/gtphub/gtphub_test.c b/openbsc/tests/gtphub/gtphub_test.c
index bd7ac58..a213877 100644
--- a/openbsc/tests/gtphub/gtphub_test.c
+++ b/openbsc/tests/gtphub/gtphub_test.c
@@ -1207,6 +1207,78 @@
OSMO_ASSERT(clear_test_hub());
}
+static void test_reused_tei(void)
+{
+ LOG("test_reused_tei");
+
+ OSMO_ASSERT(setup_test_hub());
+
+ OSMO_ASSERT(create_pdp_ctx());
+
+ const char *gtp_req_from_sgsn =
+ MSG_PDP_CTX_REQ("0068",
+ "abce", /* Next seq */
+ "60",
+ "42000121436587f9",
+ "00000123", /* Same TEIs as before */
+ "00000321",
+ "0009""08696e7465726e6574", /* "(8)internet" */
+ "0004""c0a82a17", /* same as default sgsn_sender */
+ "0004""c0a82a17"
+ );
+ const char *gtp_req_to_ggsn =
+ MSG_PDP_CTX_REQ("0068",
+ "6d32", /* mapped seq ("abce") */
+ "23",
+ "42000121436587f9",
+ "00000006", /* mapped TEI Data I ("123") */
+ "00000005", /* mapped TEI Control ("321") */
+ "0009""08696e7465726e6574",
+ "0004""7f000201", /* replaced with gtphub's ggsn ctrl */
+ "0004""7f000202" /* replaced with gtphub's ggsn user */
+ );
+
+ OSMO_ASSERT(msg_from_sgsn_c(&sgsn_sender,
+ &resolved_ggsn_addr,
+ gtp_req_from_sgsn,
+ gtp_req_to_ggsn));
+ OSMO_ASSERT(was_resolved_for("240010123456789", "internet"));
+
+ OSMO_ASSERT(tunnels_are(
+ "192.168.42.23 (TEI C 321=5 / U 123=6)"
+ " <-> 192.168.43.34 / (uninitialized) (TEI C 0=0 / U 0=0)"
+ " @21945\n"));
+
+ const char *gtp_resp_from_ggsn =
+ MSG_PDP_CTX_RSP("004e",
+ "00000005", /* destination TEI (sent in req above) */
+ "6d32", /* mapped seq */
+ "01", /* restart */
+ "00000567", /* TEI U */
+ "00000765", /* TEI C */
+ "0004""c0a82b22", /* GSN addresses */
+ "0004""c0a82b22" /* (== resolved_ggsn_addr) */
+ );
+ const char *gtp_resp_to_sgsn =
+ MSG_PDP_CTX_RSP("004e",
+ "00000321", /* unmapped TEI ("001") */
+ "abce", /* unmapped seq ("6d32") */
+ "23",
+ "00000008", /* mapped TEI from GGSN ("567") */
+ "00000007", /* mapped TEI from GGSN ("765") */
+ "0004""7f000101", /* gtphub's address towards SGSNs (Ctrl) */
+ "0004""7f000102" /* gtphub's address towards SGSNs (User) */
+ );
+ /* The response should go back to whichever port the request came from
+ * (unmapped by sequence nr) */
+ OSMO_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr,
+ &sgsn_sender,
+ gtp_resp_from_ggsn,
+ gtp_resp_to_sgsn));
+
+ OSMO_ASSERT(clear_test_hub());
+}
+
static struct log_info_cat gtphub_categories[] = {
[DGTPHUB] = {
@@ -1234,6 +1306,7 @@
test_one_pdp_ctx(GTPH_SIDE_SGSN);
test_one_pdp_ctx(GTPH_SIDE_GGSN);
test_user_data();
+ test_reused_tei();
printf("Done\n");
talloc_report_full(osmo_gtphub_ctx, stderr);