diff options
Diffstat (limited to 'openbsc/tests/sgsn/sgsn_test.c')
| -rw-r--r-- | openbsc/tests/sgsn/sgsn_test.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/openbsc/tests/sgsn/sgsn_test.c b/openbsc/tests/sgsn/sgsn_test.c index 05d1ee0ef..6762ef883 100644 --- a/openbsc/tests/sgsn/sgsn_test.c +++ b/openbsc/tests/sgsn/sgsn_test.c @@ -256,6 +256,44 @@ static void test_gmm_detach_no_mmctx(void) OSMO_ASSERT(count(gprs_llme_list()) == 0); } +/* + * Test that a GMM Status will remove the associated LLME if there is no MMCTX. + */ +static void test_gmm_status_no_mmctx(void) +{ + struct gprs_llc_lle *lle; + uint32_t local_tlli; + struct msgb *msg; + int sgsn_tx_counter_old; + + printf("Testing GMM Status (no MMCTX)\n"); + + /* DTAP - GMM Status, protocol error */ + static const unsigned char gmm_status[] = { + 0x08, 0x20, 0x6f + }; + + /* Create an LLME */ + OSMO_ASSERT(count(gprs_llme_list()) == 0); + local_tlli = gprs_tmsi2tlli(0x23, TLLI_LOCAL); + lle = gprs_lle_get_or_create(local_tlli, 3); + + OSMO_ASSERT(count(gprs_llme_list()) == 1); + + /* inject the detach */ + sgsn_tx_counter_old = sgsn_tx_counter; + msg = create_msg(gmm_status, ARRAY_SIZE(gmm_status)); + msgb_tlli(msg) = local_tlli; + gsm0408_gprs_rcvmsg(msg, lle->llme); + msgb_free(msg); + + /* verify that no message has been sent by the SGSN */ + OSMO_ASSERT(sgsn_tx_counter_old == sgsn_tx_counter); + + /* verify that the LLME is gone */ + OSMO_ASSERT(count(gprs_llme_list()) == 0); +} + static struct log_info_cat gprs_categories[] = { [DMM] = { .name = "DMM", @@ -321,6 +359,7 @@ int main(int argc, char **argv) test_gmm_detach(); test_gmm_detach_power_off(); test_gmm_detach_no_mmctx(); + test_gmm_status_no_mmctx(); printf("Done\n"); return 0; } |