sgsn/test: Add test_gmm_attach
This test checks the attach procedure until the Attach Complete is received. Note that authorization and GMM state updates are not working properly yet. Sponsored-by: On-Waves ehf
This commit is contained in:
Jacob Erlbeck
Holger Hans Peter Freyther
parent
94ef1c0da9
commit
27cb4d57e0
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@ -289,12 +289,130 @@ static void test_gmm_status_no_mmctx(void)
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OSMO_ASSERT(count(gprs_llme_list()) == 0);
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}
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/*
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* Test the GMM Attach procedure
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*/
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static void test_gmm_attach(void)
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{
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struct gprs_ra_id raid = { 0, };
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struct sgsn_mm_ctx *ctx = NULL;
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struct sgsn_mm_ctx *ictx;
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uint32_t foreign_tlli;
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uint32_t local_tlli = 0;
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struct gprs_llc_lle *lle;
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/* DTAP - Attach Request */
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/* The P-TMSI is not known by the SGSN */
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static const unsigned char attach_req[] = {
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0x08, 0x01, 0x02, 0xf5, 0xe0, 0x21, 0x08, 0x02, 0x05, 0xf4,
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0xfb, 0xc5, 0x46, 0x79, 0x11, 0x22, 0x33, 0x40, 0x50, 0x60,
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0x19, 0x18, 0xb3, 0x43, 0x2b, 0x25, 0x96, 0x62, 0x00, 0x60,
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0x80, 0x9a, 0xc2, 0xc6, 0x62, 0x00, 0x60, 0x80, 0xba, 0xc8,
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0xc6, 0x62, 0x00, 0x60, 0x80, 0x00
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};
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/* DTAP - Identity Response IMEI */
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static const unsigned char ident_resp_imei[] = {
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0x08, 0x16, 0x08, 0x9a, 0x78, 0x56, 0x34, 0x12, 0x90, 0x78,
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0x56
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};
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/* DTAP - Identity Response IMSI */
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static const unsigned char ident_resp_imsi[] = {
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0x08, 0x16, 0x08, 0x19, 0x32, 0x54, 0x76, 0x98, 0x10, 0x32,
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0x54
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};
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/* DTAP - Attach Complete */
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static const unsigned char attach_compl[] = {
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0x08, 0x03
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};
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/* DTAP - Detach Request (MO) */
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/* normal detach, power_off = 0 */
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static const unsigned char detach_req[] = {
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0x08, 0x05, 0x01, 0x18, 0x05, 0xf4, 0xeb, 0x8b,
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0x45, 0x67, 0x19, 0x03, 0xb9, 0x97, 0xcb
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};
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printf("Testing GMM attach\n");
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/* reset the PRNG used by sgsn_alloc_ptmsi */
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srand(1);
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foreign_tlli = gprs_tmsi2tlli(0xc0000023, TLLI_FOREIGN);
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/* Create a LLE/LLME */
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OSMO_ASSERT(count(gprs_llme_list()) == 0);
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lle = gprs_lle_get_or_create(foreign_tlli, 3);
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OSMO_ASSERT(count(gprs_llme_list()) == 1);
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/* inject the attach request */
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send_0408_message(lle->llme, foreign_tlli,
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attach_req, ARRAY_SIZE(attach_req));
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ctx = sgsn_mm_ctx_by_tlli(foreign_tlli, &raid);
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OSMO_ASSERT(ctx != NULL);
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OSMO_ASSERT(ctx->mm_state == GMM_COMMON_PROC_INIT);
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/* we expect an identity request (IMEI) */
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OSMO_ASSERT(sgsn_tx_counter == 1);
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/* inject the identity response (IMEI) */
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send_0408_message(ctx->llme, foreign_tlli,
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ident_resp_imei, ARRAY_SIZE(ident_resp_imei));
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/* we expect an identity request (IMSI) */
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OSMO_ASSERT(sgsn_tx_counter == 1);
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/* inject the identity response (IMSI) */
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send_0408_message(ctx->llme, foreign_tlli,
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ident_resp_imsi, ARRAY_SIZE(ident_resp_imsi));
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/* FIXME: We are not authorized and should get an Attach Reject, fix
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* authorization in gprs_gmm.c */
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/* check that the MM context has not been removed due to a failed
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* authorization */
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OSMO_ASSERT(ctx == sgsn_mm_ctx_by_tlli(foreign_tlli, &raid));
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/* FIXME: If we were authorized, the state should be
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* GMM_COMMON_PROC_INIT until the Attach Complete is received, since a
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* P-TMSI is included, fix state handling in gprs_gmm.c */
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/* OSMO_ASSERT(ctx->mm_state == GMM_COMMON_PROC_INIT); */
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/* we expect an attach accept/reject */
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OSMO_ASSERT(sgsn_tx_counter == 1);
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/* this has been randomly assigned by the SGSN */
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local_tlli = gprs_tmsi2tlli(0xeb8b4567, TLLI_LOCAL);
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/* inject the attach complete */
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send_0408_message(ctx->llme, local_tlli,
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attach_compl, ARRAY_SIZE(attach_compl));
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OSMO_ASSERT(ctx->mm_state == GMM_REGISTERED_NORMAL);
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/* we don't expect a response */
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OSMO_ASSERT(sgsn_tx_counter == 0);
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/* inject the detach */
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send_0408_message(ctx->llme, local_tlli,
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detach_req, ARRAY_SIZE(detach_req));
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/* verify that things are gone */
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OSMO_ASSERT(count(gprs_llme_list()) == 0);
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ictx = sgsn_mm_ctx_by_tlli(local_tlli, &raid);
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OSMO_ASSERT(!ictx);
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}
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static struct log_info_cat gprs_categories[] = {
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[DMM] = {
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.name = "DMM",
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.description = "Layer3 Mobility Management (MM)",
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.color = "\033[1;33m",
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.enabled = 1, .loglevel = LOGL_NOTICE,
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.enabled = 1, .loglevel = LOGL_DEBUG,
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},
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[DPAG] = {
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.name = "DPAG",
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@ -350,11 +468,14 @@ int main(int argc, char **argv)
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tall_bsc_ctx = talloc_named_const(NULL, 0, "osmo_sgsn");
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tall_msgb_ctx = talloc_named_const(tall_bsc_ctx, 0, "msgb");
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sgsn_auth_init(sgsn);
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test_llme();
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test_gmm_detach();
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test_gmm_detach_power_off();
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test_gmm_detach_no_mmctx();
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test_gmm_status_no_mmctx();
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test_gmm_attach();
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printf("Done\n");
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return 0;
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}
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@ -3,4 +3,5 @@ Testing GMM detach
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Testing GMM detach (power off)
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Testing GMM detach (no MMCTX)
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Testing GMM Status (no MMCTX)
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Testing GMM attach
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Done
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