| /* Test the SGSN */ |
| /* |
| * (C) 2014 by Holger Hans Peter Freyther |
| * (C) 2014 by sysmocom s.f.m.c. GmbH |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Affero General Public License as published by |
| * the Free Software Foundation; either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Affero General Public License for more details. |
| * |
| * You should have received a copy of the GNU Affero General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| #include <openbsc/gprs_llc.h> |
| #include <openbsc/sgsn.h> |
| #include <openbsc/gprs_gmm.h> |
| #include <openbsc/debug.h> |
| |
| #include <osmocom/gsm/gsm_utils.h> |
| |
| #include <osmocom/core/application.h> |
| #include <osmocom/core/msgb.h> |
| |
| #include <stdio.h> |
| |
| extern void *tall_msgb_ctx; |
| |
| void *tall_bsc_ctx; |
| static struct sgsn_instance sgsn_inst = { |
| .config_file = "osmo_sgsn.cfg", |
| .cfg = { |
| .gtp_statedir = "./", |
| .acl_enabled = 1, |
| }, |
| }; |
| struct sgsn_instance *sgsn = &sgsn_inst; |
| |
| static int count(struct llist_head *head) |
| { |
| struct llist_head *cur; |
| int count = 0; |
| |
| llist_for_each(cur, head) |
| count += 1; |
| |
| return count; |
| } |
| |
| static struct msgb *create_msg(const uint8_t *data, size_t len) |
| { |
| struct msgb *msg = msgb_alloc(len + 8, "test message"); |
| msg->l1h = msgb_put(msg, 8); |
| msg->l2h = msgb_put(msg, len); |
| memcpy(msg->l2h, data, len); |
| |
| msgb_bcid(msg) = msg->l1h; |
| msgb_gmmh(msg) = msg->l2h; |
| return msg; |
| } |
| |
| static void test_llme(void) |
| { |
| struct gprs_llc_lle *lle, *lle_copy; |
| uint32_t local_tlli; |
| uint32_t foreign_tlli; |
| |
| printf("Testing LLME allocations\n"); |
| local_tlli = gprs_tmsi2tlli(0x234, TLLI_LOCAL); |
| foreign_tlli = gprs_tmsi2tlli(0x234, TLLI_FOREIGN); |
| |
| /* initial state */ |
| OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| |
| /* Create a new entry */ |
| lle = gprs_lle_get_or_create(local_tlli, 3); |
| OSMO_ASSERT(lle); |
| OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| |
| /* No new entry is created */ |
| lle_copy = gprs_lle_get_or_create(local_tlli, 3); |
| OSMO_ASSERT(lle == lle_copy); |
| OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| lle_copy = gprs_lle_get_or_create(foreign_tlli, 3); |
| OSMO_ASSERT(lle == lle_copy); |
| OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| |
| /* unassign which should delete it*/ |
| gprs_llgmm_assign(lle->llme, lle->llme->tlli, 0xffffffff, GPRS_ALGO_GEA0, NULL); |
| |
| /* Check that everything was cleaned up */ |
| OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| } |
| |
| /* |
| * Test that a GMM Detach will remove the MMCTX and the |
| * associated LLME. |
| */ |
| static void test_gmm_detach(void) |
| { |
| struct gprs_ra_id raid = { 0, }; |
| struct sgsn_mm_ctx *ctx, *ictx; |
| struct gprs_llc_lle *lle; |
| uint32_t local_tlli; |
| struct msgb *msg; |
| |
| printf("Testing GMM detach\n"); |
| |
| /* DTAP - Detach Request (MO) */ |
| /* normal detach, power_off = 0 */ |
| static const unsigned char detach_req[] = { |
| 0x08, 0x05, 0x01, 0x18, 0x05, 0xf4, 0xef, 0xe2, |
| 0xb7, 0x00, 0x19, 0x03, 0xb9, 0x97, 0xcb |
| }; |
| |
| /* Create a conext and search for it */ |
| OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| local_tlli = gprs_tmsi2tlli(0x23, TLLI_LOCAL); |
| lle = gprs_lle_get_or_create(local_tlli, 3); |
| ctx = sgsn_mm_ctx_alloc(local_tlli, &raid); |
| ctx->mm_state = GMM_REGISTERED_NORMAL; |
| ctx->llme = lle->llme; |
| |
| ictx = sgsn_mm_ctx_by_tlli(local_tlli, &raid); |
| OSMO_ASSERT(ictx == ctx); |
| OSMO_ASSERT(count(gprs_llme_list()) == 1); |
| |
| /* inject the detach */ |
| msg = create_msg(detach_req, ARRAY_SIZE(detach_req)); |
| msgb_tlli(msg) = local_tlli; |
| gsm0408_gprs_rcvmsg(msg, ctx->llme); |
| msgb_free(msg); |
| |
| /* verify that things are gone */ |
| OSMO_ASSERT(count(gprs_llme_list()) == 0); |
| ictx = sgsn_mm_ctx_by_tlli(local_tlli, &raid); |
| OSMO_ASSERT(!ictx); |
| } |
| |
| static struct log_info_cat gprs_categories[] = { |
| [DMM] = { |
| .name = "DMM", |
| .description = "Layer3 Mobility Management (MM)", |
| .color = "\033[1;33m", |
| .enabled = 1, .loglevel = LOGL_NOTICE, |
| }, |
| [DPAG] = { |
| .name = "DPAG", |
| .description = "Paging Subsystem", |
| .color = "\033[1;38m", |
| .enabled = 1, .loglevel = LOGL_NOTICE, |
| }, |
| [DMEAS] = { |
| .name = "DMEAS", |
| .description = "Radio Measurement Processing", |
| .enabled = 0, .loglevel = LOGL_NOTICE, |
| }, |
| [DREF] = { |
| .name = "DREF", |
| .description = "Reference Counting", |
| .enabled = 0, .loglevel = LOGL_NOTICE, |
| }, |
| [DGPRS] = { |
| .name = "DGPRS", |
| .description = "GPRS Packet Service", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DNS] = { |
| .name = "DNS", |
| .description = "GPRS Network Service (NS)", |
| .enabled = 1, .loglevel = LOGL_INFO, |
| }, |
| [DBSSGP] = { |
| .name = "DBSSGP", |
| .description = "GPRS BSS Gateway Protocol (BSSGP)", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DLLC] = { |
| .name = "DLLC", |
| .description = "GPRS Logical Link Control Protocol (LLC)", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| [DSNDCP] = { |
| .name = "DSNDCP", |
| .description = "GPRS Sub-Network Dependent Control Protocol (SNDCP)", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| }; |
| |
| static struct log_info info = { |
| .cat = gprs_categories, |
| .num_cat = ARRAY_SIZE(gprs_categories), |
| }; |
| |
| int main(int argc, char **argv) |
| { |
| osmo_init_logging(&info); |
| tall_bsc_ctx = talloc_named_const(NULL, 0, "osmo_sgsn"); |
| tall_msgb_ctx = talloc_named_const(tall_bsc_ctx, 0, "msgb"); |
| |
| test_llme(); |
| test_gmm_detach(); |
| printf("Done\n"); |
| return 0; |
| } |
| |
| |
| /* stubs */ |
| struct osmo_prim_hdr; |
| int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx) |
| { |
| abort(); |
| } |