gbproxy/test: Add/modify test cases
Add a Attach Request message to test_gbproxy_ra_patching, where the
BSSGP RAI differs from the old RAI signalled in the LLC part. This
case had not been tested explicitely yet.
Change the RAI in the first Attach Request in
test_gbproxy_imsi_acquisition from rai_unknown to rai_bss.
Add Detach Requests to test_gbproxy_imsi_acquisition, one for a
incomplete attach procedure and one for an unknown (fresh) TLLI.
In these cases, the acquisition of a IMSI is not necessary and also
doesn't work properly with an E71.
Sponsored-by: On-Waves ehf
diff --git a/openbsc/tests/gbproxy/gbproxy_test.c b/openbsc/tests/gbproxy/gbproxy_test.c
index bb2e3e5..1521c5f 100644
--- a/openbsc/tests/gbproxy/gbproxy_test.c
+++ b/openbsc/tests/gbproxy/gbproxy_test.c
@@ -183,6 +183,16 @@
0xc6, 0x62, 0x00, 0x60, 0x80, 0x00,
};
+/* DTAP - Attach Request (invalid RAI) */
+static const unsigned char dtap_attach_req2[] = {
+ 0x08, 0x01, 0x02, 0xf5, 0xe0, 0x21, 0x08, 0x02,
+ 0x05, 0xf4, 0xfb, 0x00, 0xbe, 0xef, 0x99, 0x99,
+ 0x99, 0x40, 0x50, 0x60, 0x19, 0x18, 0xb3, 0x43,
+ 0x2b, 0x25, 0x96, 0x62, 0x00, 0x60, 0x80, 0x9a,
+ 0xc2, 0xc6, 0x62, 0x00, 0x60, 0x80, 0xba, 0xc8,
+ 0xc6, 0x62, 0x00, 0x60, 0x80, 0x00,
+};
+
/* DTAP - Identity Request */
static const unsigned char dtap_identity_req[] = {
0x08, 0x15, 0x01
@@ -1329,6 +1339,7 @@
const uint32_t ptmsi = 0xefe2b700;
const uint32_t local_tlli = 0xefe2b700;
const uint32_t foreign_tlli = 0xbbc54679;
+ const uint32_t foreign_tlli2 = 0xbb00beef;
const uint8_t imsi[] = {0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18};
struct gbproxy_tlli_info *tlli_info;
struct gbproxy_peer *peer;
@@ -1530,6 +1541,14 @@
printf("--- Bad cases ---\n\n");
+ /* The RAI in the Attach Request message differs from the RAI in the
+ * BSSGP message, only patch the latter */
+
+ send_llc_ul_ui(nsi, "ATTACH REQUEST (foreign RAI)", &bss_peer[0], 0x1002,
+ foreign_tlli2, &rai_bss, cell_id,
+ GPRS_SAPI_GMM, 0,
+ dtap_attach_req2, sizeof(dtap_attach_req2));
+
printf("TLLI is already detached, shouldn't patch\n");
send_llc_ul_ui(nsi, "ACT PDP CTX REQ", &bss_peer[0], 0x1002,
local_tlli, &rai_bss, cell_id,
@@ -1896,6 +1915,7 @@
const uint32_t bss_ptmsi = 0xc00f7304;
const uint32_t local_bss_tlli = 0xc00f7304;
const uint32_t foreign_bss_tlli = 0x8000dead;
+ const uint32_t other_bss_tlli = 0x8000beef;
const uint8_t imsi[] = {0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18};
struct gbproxy_tlli_info *tlli_info;
@@ -1942,7 +1962,7 @@
printf("--- Send message from BSS 1 to SGSN, BVCI 0x1002 ---\n\n");
send_llc_ul_ui(nsi, "ATTACH REQUEST", &bss_peer[0], 0x1002,
- foreign_bss_tlli, &rai_unknown, cell_id,
+ foreign_bss_tlli, &rai_bss, cell_id,
GPRS_SAPI_GMM, bss_nu++,
dtap_attach_req, sizeof(dtap_attach_req));
@@ -2104,6 +2124,20 @@
GPRS_SAPI_GMM, bss_nu++,
dtap_attach_req, sizeof(dtap_attach_req));
+ send_llc_ul_ui(nsi, "DETACH REQ", &bss_peer[0], 0x1002,
+ foreign_bss_tlli, &rai_bss, cell_id,
+ GPRS_SAPI_GMM, bss_nu++,
+ dtap_detach_req, sizeof(dtap_detach_req));
+
+ dump_peers(stdout, 0, 0, &gbcfg);
+
+ /* Special case: Detach from an unknown TLLI */
+
+ send_llc_ul_ui(nsi, "DETACH REQ (unknown TLLI)", &bss_peer[0], 0x1002,
+ other_bss_tlli, &rai_bss, cell_id,
+ GPRS_SAPI_GMM, bss_nu++,
+ dtap_detach_req, sizeof(dtap_detach_req));
+
dump_peers(stdout, 0, 0, &gbcfg);
dump_global(stdout, 0);