| /* Test the GTP hub */ |
| |
| /* (C) 2015 by sysmocom s.f.m.c. GmbH |
| * All Rights Reserved |
| * |
| * Author: Neels Hofmeyr <nhofmeyr@sysmcom.de> |
| * |
| * 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 <stdio.h> |
| #include <string.h> |
| #include <limits.h> |
| #include <unistd.h> |
| |
| #include <osmocom/core/utils.h> |
| #include <osmocom/core/msgb.h> |
| #include <osmocom/core/application.h> |
| |
| #include <openbsc/debug.h> |
| |
| #include <openbsc/gtphub.h> |
| #include <gtp.h> |
| #include <gtpie.h> |
| |
| #define ZERO_STRUCT(struct_pointer) memset(struct_pointer, '\0', \ |
| sizeof(*(struct_pointer))) |
| |
| #define LVL2_ASSERT(exp) LVL2_ASSERT_R(exp, return 0) |
| #define LVL2_ASSERT_R(exp, ret) \ |
| if (!(exp)) { \ |
| fprintf(stderr, "LVL2 Assert failed %s %s:%d\n", #exp, \ |
| __FILE__, __LINE__); \ |
| osmo_generate_backtrace(); \ |
| ret; \ |
| } |
| |
| /* Convenience makro, note: only within this C file. */ |
| #define LOG(label) \ |
| { fprintf(stderr, "\n" label "\n"); \ |
| printf(label "\n"); } |
| |
| void gtphub_init(struct gtphub *hub); |
| void gtphub_free(struct gtphub *hub); |
| |
| void *osmo_gtphub_ctx; |
| |
| /* TODO copied from libosmo-abis/src/subchan_demux.c, remove dup */ |
| static int llist_len(struct llist_head *head) |
| { |
| struct llist_head *entry; |
| int i = 0; |
| |
| llist_for_each(entry, head) |
| i++; |
| |
| return i; |
| } |
| |
| static void nr_mapping_free(struct expiring_item *e) |
| { |
| struct nr_mapping *m = container_of(e, struct nr_mapping, |
| expiry_entry); |
| nr_mapping_del(m); |
| talloc_free(m); |
| } |
| |
| static struct nr_mapping *nr_mapping_alloc(void) |
| { |
| struct nr_mapping *m; |
| m = talloc(osmo_gtphub_ctx, struct nr_mapping); |
| nr_mapping_init(m); |
| m->expiry_entry.del_cb = nr_mapping_free; |
| return m; |
| } |
| |
| static struct nr_mapping *nr_map_have(struct nr_map *map, void *origin, |
| nr_t orig, time_t now) |
| { |
| struct nr_mapping *mapping; |
| |
| mapping = nr_map_get(map, origin, orig); |
| if (!mapping) { |
| mapping = nr_mapping_alloc(); |
| mapping->origin = origin; |
| mapping->orig = orig; |
| nr_map_add(map, mapping, now); |
| } |
| |
| return mapping; |
| } |
| |
| static nr_t nr_map_verify(const struct nr_map *map, void *origin, nr_t orig, |
| nr_t expect_repl) |
| { |
| struct nr_mapping *m; |
| m = nr_map_get(map, origin, orig); |
| |
| if (!m) { |
| printf("mapping not found for %p %d\n", origin, orig); |
| return 0; |
| } |
| |
| if (m->repl != expect_repl) { |
| printf("mapping found, but nr mismatches: expect %d, got %d\n", |
| (int)expect_repl, (int)m->repl); |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| static int nr_map_verify_inv(const struct nr_map *map, nr_t repl, |
| void *expect_origin, nr_t expect_orig) |
| { |
| struct nr_mapping *m; |
| m = nr_map_get_inv(map, repl); |
| if (!m) { |
| printf("mapping not found for %d\n", (int)repl); |
| return 0; |
| } |
| |
| if (m->origin != expect_origin) { |
| printf("mapping found, but origin mismatches:" |
| " expect %p, got %p\n", |
| expect_origin, m->origin); |
| return 0; |
| } |
| |
| if (m->orig != expect_orig) { |
| printf("mapping found, but nr mismatches: expect %d, got %d\n", |
| (int)expect_orig, (int)m->orig); |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| |
| static void test_nr_map_basic(void) |
| { |
| struct nr_pool _pool; |
| struct nr_pool *pool = &_pool; |
| struct nr_map _map; |
| struct nr_map *map = &_map; |
| |
| nr_pool_init(pool, 1, 1000); |
| nr_map_init(map, pool, NULL); |
| |
| OSMO_ASSERT(llist_empty(&map->mappings)); |
| |
| #define TEST_N_HALF 100 |
| #define TEST_N (2*TEST_N_HALF) |
| #define TEST_I 123 |
| uint32_t i, check_i; |
| uint32_t m[TEST_N]; |
| struct nr_mapping *mapping; |
| |
| /* create half of TEST_N mappings from one origin */ |
| void *origin1 = (void*)0x1234; |
| for (i = 0; i < TEST_N_HALF; i++) { |
| nr_t orig = TEST_I + i; |
| mapping = nr_map_have(map, origin1, orig, 0); |
| m[i] = mapping->repl; |
| OSMO_ASSERT(m[i] != 0); |
| OSMO_ASSERT(llist_len(&map->mappings) == (i+1)); |
| for (check_i = 0; check_i < i; check_i++) |
| OSMO_ASSERT(m[check_i] != m[i]); |
| } |
| OSMO_ASSERT(llist_len(&map->mappings) == TEST_N_HALF); |
| |
| /* create another TEST_N mappings with the same original numbers, but |
| * from a different origin */ |
| void *origin2 = (void*)0x5678; |
| for (i = 0; i < TEST_N_HALF; i++) { |
| int i2 = TEST_N_HALF + i; |
| nr_t orig = TEST_I + i; |
| mapping = nr_map_have(map, origin2, orig, 0); |
| m[i2] = mapping->repl; |
| OSMO_ASSERT(m[i2] != 0); |
| OSMO_ASSERT(llist_len(&map->mappings) == (i2+1)); |
| for (check_i = 0; check_i < i2; check_i++) |
| OSMO_ASSERT(m[check_i] != m[i2]); |
| } |
| OSMO_ASSERT(llist_len(&map->mappings) == TEST_N); |
| |
| /* verify mappings */ |
| for (i = 0; i < TEST_N_HALF; i++) { |
| nr_t orig = TEST_I + i; |
| { |
| OSMO_ASSERT(nr_map_verify(map, origin1, orig, m[i])); |
| OSMO_ASSERT(nr_map_verify_inv(map, m[i], origin1, |
| orig)); |
| } |
| { |
| int i2 = TEST_N_HALF + i; |
| OSMO_ASSERT(nr_map_verify(map, origin2, orig, m[i2])); |
| OSMO_ASSERT(nr_map_verify_inv(map, m[i2], origin2, |
| orig)); |
| } |
| } |
| |
| /* remove all mappings */ |
| for (i = 0; i < TEST_N_HALF; i++) { |
| OSMO_ASSERT(llist_len(&map->mappings) == (TEST_N - 2*i)); |
| |
| nr_t orig = TEST_I + i; |
| nr_mapping_del(nr_map_get(map, origin1, orig)); |
| nr_mapping_del(nr_map_get(map, origin2, orig)); |
| } |
| OSMO_ASSERT(llist_empty(&map->mappings)); |
| #undef TEST_N |
| #undef TEST_I |
| } |
| |
| static int nr_map_is(struct nr_map *map, const char *str) |
| { |
| static char buf[4096]; |
| char *pos = buf; |
| size_t len = sizeof(buf); |
| struct nr_mapping *m; |
| llist_for_each_entry(m, &map->mappings, entry) { |
| size_t wrote = snprintf(pos, len, "(%u->%u@%d), ", |
| m->orig, |
| m->repl, |
| (int)m->expiry_entry.expiry); |
| OSMO_ASSERT(wrote < len); |
| pos += wrote; |
| len -= wrote; |
| } |
| *pos = '\0'; |
| |
| if (strncmp(buf, str, sizeof(buf)) != 0) { |
| printf("FAILURE: nr_map_is() mismatches expected value:\n" |
| "expected: \"%s\"\n" |
| "is: \"%s\"\n", |
| str, buf); |
| return 0; |
| } |
| return 1; |
| } |
| |
| static int test_nr_map_wrap_with(nr_t nr_min, nr_t nr_max, nr_t repl_last, |
| nr_t orig_start, int orig_n, |
| const char *expect) |
| { |
| struct nr_pool _pool; |
| struct nr_pool *pool = &_pool; |
| struct nr_map _map; |
| struct nr_map *map = &_map; |
| |
| nr_pool_init(pool, nr_min, nr_max); |
| nr_map_init(map, pool, NULL); |
| |
| pool->last_nr = repl_last; |
| |
| void *origin = (void*)0x1234; |
| |
| int i; |
| for (i = 0; i < orig_n; i++) |
| LVL2_ASSERT(nr_map_have(map, origin, orig_start + i, 0)); |
| |
| LVL2_ASSERT(nr_map_is(map, expect)); |
| |
| nr_map_clear(map); |
| return 1; |
| } |
| |
| static void test_nr_map_wrap(void) |
| { |
| OSMO_ASSERT(test_nr_map_wrap_with( |
| 0, UINT_MAX, UINT_MAX - 2, |
| 1, 5, |
| "(1->4294967294@0), " |
| "(2->4294967295@0), " |
| "(3->0@0), " |
| "(4->1@0), " |
| "(5->2@0), " |
| )); |
| OSMO_ASSERT(test_nr_map_wrap_with( |
| 5, 10, 8, |
| 1, 5, |
| "(1->9@0), (2->10@0), (3->5@0), (4->6@0), (5->7@0), " |
| )); |
| } |
| |
| static void test_expiry(void) |
| { |
| struct expiry expiry; |
| struct nr_pool pool; |
| struct nr_map map; |
| int i; |
| |
| expiry_init(&expiry, 30); |
| nr_pool_init(&pool, 1, 1000); |
| nr_map_init(&map, &pool, &expiry); |
| OSMO_ASSERT(nr_map_is(&map, "")); |
| |
| /* tick on empty map */ |
| OSMO_ASSERT(expiry_tick(&expiry, 10000) == 0); |
| OSMO_ASSERT(nr_map_is(&map, "")); |
| |
| #define MAP1 \ |
| "(10->1@10040), " \ |
| "" |
| |
| #define MAP2 \ |
| "(20->2@10050), " \ |
| "(21->3@10051), " \ |
| "(22->4@10052), " \ |
| "(23->5@10053), " \ |
| "(24->6@10054), " \ |
| "(25->7@10055), " \ |
| "(26->8@10056), " \ |
| "(27->9@10057), " \ |
| "" |
| |
| #define MAP3 \ |
| "(420->10@10072), " \ |
| "(421->11@10072), " \ |
| "(422->12@10072), " \ |
| "(423->13@10072), " \ |
| "(424->14@10072), " \ |
| "(425->15@10072), " \ |
| "(426->16@10072), " \ |
| "(427->17@10072), " \ |
| "" |
| |
| /* add mapping at time 10010. */ |
| nr_map_have(&map, 0, 10, 10010); |
| OSMO_ASSERT(nr_map_is(&map, MAP1)); |
| |
| /* tick on unexpired item. */ |
| OSMO_ASSERT(expiry_tick(&expiry, 10010) == 0); |
| OSMO_ASSERT(expiry_tick(&expiry, 10011) == 0); |
| OSMO_ASSERT(nr_map_is(&map, MAP1)); |
| |
| /* Spread mappings at 10020, 10021, ... 10027. */ |
| for (i = 0; i < 8; i++) |
| nr_map_have(&map, 0, 20 + i, 10020 + i); |
| OSMO_ASSERT(nr_map_is(&map, MAP1 MAP2)); |
| |
| /* tick on unexpired items. */ |
| OSMO_ASSERT(expiry_tick(&expiry, 10030) == 0); |
| OSMO_ASSERT(expiry_tick(&expiry, 10039) == 0); |
| OSMO_ASSERT(nr_map_is(&map, MAP1 MAP2)); |
| |
| /* expire the first item (from 10010). */ |
| OSMO_ASSERT(expiry_tick(&expiry, 10010 + 30) == 1); |
| OSMO_ASSERT(nr_map_is(&map, MAP2)); |
| |
| /* again nothing to expire */ |
| OSMO_ASSERT(expiry_tick(&expiry, 10041) == 0); |
| OSMO_ASSERT(nr_map_is(&map, MAP2)); |
| |
| /* Mappings all at the same time. */ |
| for (i = 0; i < 8; i++) |
| nr_map_have(&map, 0, 420 + i, 10042); |
| OSMO_ASSERT(nr_map_is(&map, MAP2 MAP3)); |
| |
| /* Eight to expire, were added further above to be chronologically |
| * correct, at 10020..10027. */ |
| OSMO_ASSERT(expiry_tick(&expiry, 10027 + 30) == 8); |
| OSMO_ASSERT(nr_map_is(&map, MAP3)); |
| |
| /* again nothing to expire */ |
| OSMO_ASSERT(expiry_tick(&expiry, 10027 + 30) == 0); |
| OSMO_ASSERT(nr_map_is(&map, MAP3)); |
| |
| /* Eight to expire, from 10042. Now at 10042 + 30: */ |
| OSMO_ASSERT(expiry_tick(&expiry, 10042 + 30) == 8); |
| OSMO_ASSERT(nr_map_is(&map, "")); |
| |
| #undef MAP1 |
| #undef MAP2 |
| #undef MAP3 |
| } |
| |
| char resolve_ggsn_got_imsi[GSM23003_IMSI_MAX_DIGITS+1]; |
| char resolve_ggsn_got_ni[GSM_APN_LENGTH]; |
| |
| struct osmo_sockaddr resolved_ggsn_addr; |
| static int resolve_to_ggsn(const char *addr, uint16_t port) |
| { |
| LVL2_ASSERT(osmo_sockaddr_init_udp(&resolved_ggsn_addr, |
| addr, port) |
| == 0); |
| return 1; |
| } |
| |
| struct osmo_sockaddr resolved_sgsn_addr; |
| static int resolve_to_sgsn(const char *addr, uint16_t port) |
| { |
| LVL2_ASSERT(osmo_sockaddr_init_udp(&resolved_sgsn_addr, |
| addr, port) |
| == 0); |
| return 1; |
| } |
| |
| struct osmo_sockaddr sgsn_sender; |
| static int send_from_sgsn(const char *addr, uint16_t port) |
| { |
| LVL2_ASSERT(osmo_sockaddr_init_udp(&sgsn_sender, |
| addr, port) |
| == 0); |
| return 1; |
| } |
| |
| struct osmo_sockaddr ggsn_sender; |
| static int send_from_ggsn(const char *addr, uint16_t port) |
| { |
| LVL2_ASSERT(osmo_sockaddr_init_udp(&ggsn_sender, |
| addr, port) |
| == 0); |
| return 1; |
| } |
| |
| |
| /* override, requires '-Wl,--wrap=gtphub_resolve_ggsn_addr' */ |
| struct gtphub_peer_port *__real_gtphub_resolve_ggsn_addr(struct gtphub *hub, |
| const char *imsi_str, |
| const char *apn_ni_str); |
| |
| struct gtphub_peer_port *__wrap_gtphub_resolve_ggsn_addr(struct gtphub *hub, |
| const char *imsi_str, |
| const char *apn_ni_str) |
| { |
| struct gsn_addr resolved_gsna; |
| uint16_t resolved_port; |
| |
| OSMO_ASSERT(gsn_addr_from_sockaddr(&resolved_gsna, &resolved_port, |
| &resolved_ggsn_addr) == 0); |
| |
| struct gtphub_peer_port *pp; |
| pp = gtphub_port_have(hub, &hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_CTRL], |
| &resolved_gsna, resolved_port); |
| printf("- __wrap_gtphub_resolve_ggsn_addr():\n" |
| " returning GGSN addr from imsi %s ni %s: %s\n", |
| imsi_str, apn_ni_str, gtphub_port_str(pp)); |
| |
| if (imsi_str) { |
| strncpy(resolve_ggsn_got_imsi, imsi_str, |
| sizeof(resolve_ggsn_got_imsi)); |
| resolve_ggsn_got_imsi[sizeof(resolve_ggsn_got_imsi) - 1] = '\0'; |
| } |
| else |
| strcpy(resolve_ggsn_got_imsi, "(null)"); |
| |
| if (apn_ni_str) { |
| strncpy(resolve_ggsn_got_ni, apn_ni_str, |
| sizeof(resolve_ggsn_got_ni)); |
| resolve_ggsn_got_ni[sizeof(resolve_ggsn_got_ni) - 1] = '\0'; |
| } |
| else |
| strcpy(resolve_ggsn_got_ni, "(null)"); |
| |
| return pp; |
| } |
| |
| #define was_resolved_for(IMSI,NI) _was_resolved_for(IMSI, NI, __FILE__, __LINE__) |
| static int _was_resolved_for(const char *imsi, const char *ni, const char |
| *file, int line) |
| { |
| int cmp0 = strncmp(imsi, resolve_ggsn_got_imsi, |
| sizeof(resolve_ggsn_got_imsi)); |
| |
| if (cmp0 != 0) { |
| printf("\n%s:%d: was_resolved_for(): MISMATCH for IMSI\n" |
| " expecting: '%s'\n" |
| " got: '%s'\n\n", |
| file, |
| line, |
| imsi, resolve_ggsn_got_imsi); |
| } |
| |
| int cmp1 = strncmp(ni, resolve_ggsn_got_ni, |
| sizeof(resolve_ggsn_got_ni)); |
| if (cmp1 != 0) { |
| printf("\n%s:%d: was_resolved_for(): MISMATCH for NI\n" |
| " expecting: '%s'\n" |
| " got: '%s'\n\n", |
| file, |
| line, |
| ni, resolve_ggsn_got_ni); |
| } |
| |
| return (cmp0 == 0) && (cmp1 == 0); |
| } |
| |
| /* override, requires '-Wl,--wrap=gtphub_ares_init' */ |
| int __real_gtphub_ares_init(struct gtphub *hub); |
| |
| int __wrap_gtphub_ares_init(struct gtphub *hub) |
| { |
| /* Do nothing. */ |
| return 0; |
| } |
| |
| /* override, requires '-Wl,--wrap=gtphub_write' */ |
| int __real_gtphub_write(const struct osmo_fd *to, |
| const struct osmo_sockaddr *to_addr, |
| const uint8_t *buf, size_t buf_len); |
| |
| int __wrap_gtphub_write(const struct osmo_fd *to, |
| const struct osmo_sockaddr *to_addr, |
| const uint8_t *buf, size_t buf_len) |
| { |
| printf("Out-of-band gtphub_write(%d):\n" |
| "to %s\n" |
| "%s\n", |
| (int)buf_len, |
| osmo_sockaddr_to_str(to_addr), |
| osmo_hexdump(buf, buf_len)); |
| return 0; |
| } |
| |
| #define buf_len 1024 |
| static uint8_t buf[buf_len]; |
| static uint8_t *reply_buf; |
| |
| static unsigned int msg(const char *hex) |
| { |
| unsigned int l = osmo_hexparse(hex, buf, buf_len); |
| OSMO_ASSERT(l > 0); |
| return l; |
| } |
| |
| /* Compare static buf to given string constant. The amount of bytes is obtained |
| * from parsing the GTP header in buf. hex must match an osmo_hexdump() of the |
| * desired message. Return 1 if size and content match. */ |
| #define reply_is(MSG) _reply_is(MSG, __FILE__, __LINE__) |
| static int _reply_is(const char *hex, const char *file, int line) |
| { |
| struct gtp1_header_long *h = (void*)reply_buf; |
| int len = ntoh16(h->length) + 8; |
| const char *dump = osmo_hexdump_nospc(reply_buf, len); |
| int cmp = strcmp(dump, hex); |
| |
| if (cmp != 0) { |
| printf("\n%s:%d: reply_is(): MISMATCH\n" |
| " expecting:\n'%s'\n" |
| " got:\n'%s'\n\n", |
| file, |
| line, |
| hex, dump); |
| int i; |
| int l = strlen(hex); |
| int m = strlen(dump); |
| if (m < l) |
| l = m; |
| for (i = 0; i < l; i++) { |
| if (hex[i] != dump[i]) { |
| printf("First mismatch at position %d:\n" |
| " %s\n %s\n", i, hex + i, dump + i); |
| break; |
| } |
| } |
| } |
| return cmp == 0; |
| } |
| |
| #define same_addr(GOT, EXPECTED) _same_addr((GOT),(EXPECTED), __FILE__, __LINE__) |
| static int _same_addr(const struct osmo_sockaddr *got, |
| const struct osmo_sockaddr *expected, |
| const char *file, int line) |
| { |
| int cmp = osmo_sockaddr_cmp(got, expected); |
| if (!cmp) |
| return 1; |
| char buf[256]; |
| printf("\n%s:%d: addr_is(): MISMATCH\n" |
| " expecting: '%s'\n" |
| " got: '%s'\n\n", |
| file, line, |
| osmo_sockaddr_to_str(expected), |
| osmo_sockaddr_to_strb(got, buf, sizeof(buf))); |
| return 0; |
| } |
| |
| |
| time_t now; |
| static struct gtphub _hub; |
| static struct gtphub *hub = &_hub; |
| |
| static int setup_test_hub() |
| { |
| /* Not really needed, but to make 100% sure... */ |
| ZERO_STRUCT(hub); |
| |
| gtphub_init(hub); |
| |
| /* Tell this mock gtphub its local address for this test. */ |
| LVL2_ASSERT(gsn_addr_from_str(&hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_CTRL].local_addr, |
| "127.0.1.1") == 0); |
| LVL2_ASSERT(gsn_addr_from_str(&hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_USER].local_addr, |
| "127.0.1.2") == 0); |
| LVL2_ASSERT(gsn_addr_from_str(&hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_CTRL].local_addr, |
| "127.0.2.1") == 0); |
| LVL2_ASSERT(gsn_addr_from_str(&hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_USER].local_addr, |
| "127.0.2.2") == 0); |
| |
| hub->restart_counter = 0x23; |
| now = 345; |
| LVL2_ASSERT(send_from_sgsn("192.168.42.23", 423)); |
| LVL2_ASSERT(resolve_to_ggsn("192.168.43.34", 2123)); |
| LVL2_ASSERT(send_from_ggsn("192.168.43.34", 434)); |
| LVL2_ASSERT(resolve_to_sgsn("192.168.42.23", 2123)); |
| |
| #define GGSNS_CTRL_FD 1 |
| #define GGSNS_USER_FD 2 |
| #define SGSNS_CTRL_FD 3 |
| #define SGSNS_USER_FD 4 |
| hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_CTRL].ofd.priv_nr = GGSNS_CTRL_FD; |
| hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_USER].ofd.priv_nr = GGSNS_USER_FD; |
| hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_CTRL].ofd.priv_nr = SGSNS_CTRL_FD; |
| hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_USER].ofd.priv_nr = SGSNS_USER_FD; |
| |
| return 1; |
| } |
| |
| static int clear_test_hub() |
| { |
| /* expire all */ |
| gtphub_gc(hub, now + (60 * GTPH_EXPIRE_SLOWLY_MINUTES) + 1); |
| |
| int plane_idx; |
| plane_idx = GTPH_PLANE_CTRL; |
| LVL2_ASSERT(llist_empty(&hub->to_gsns[GTPH_SIDE_GGSN][plane_idx].peers)); |
| LVL2_ASSERT(llist_empty(&hub->to_gsns[GTPH_SIDE_SGSN][plane_idx].peers)); |
| plane_idx = GTPH_PLANE_USER; |
| LVL2_ASSERT(llist_empty(&hub->to_gsns[GTPH_SIDE_GGSN][plane_idx].peers)); |
| LVL2_ASSERT(llist_empty(&hub->to_gsns[GTPH_SIDE_SGSN][plane_idx].peers)); |
| |
| LVL2_ASSERT(llist_empty(&hub->tunnels)); |
| LVL2_ASSERT(llist_empty(&hub->pending_deletes)); |
| LVL2_ASSERT(llist_empty(&hub->ggsn_lookups)); |
| LVL2_ASSERT(llist_empty(&hub->resolved_ggsns)); |
| |
| gtphub_free(hub); |
| return 1; |
| } |
| |
| static int tunnels_are(const char *expect) |
| { |
| static char buf[4096]; |
| char *pos = buf; |
| size_t len = sizeof(buf); |
| struct gtphub_tunnel *t; |
| llist_for_each_entry(t, &hub->tunnels, entry) { |
| size_t wrote = snprintf(pos, len, "%s @%d\n", |
| gtphub_tunnel_str(t), |
| (int)t->expiry_entry.expiry); |
| LVL2_ASSERT(wrote < len); |
| pos += wrote; |
| len -= wrote; |
| } |
| *pos = '\0'; |
| |
| if (strncmp(buf, expect, sizeof(buf)) != 0) { |
| fprintf(stderr, "FAILURE: tunnels_are() mismatches expected value:\n" |
| "EXPECTED:\n%s\n" |
| "IS:\n%s\n", |
| expect, buf); |
| LVL2_ASSERT("tunnels do not match expected listing."); |
| return 0; |
| } |
| return 1; |
| } |
| |
| static void test_echo(void) |
| { |
| LOG("test_echo"); |
| OSMO_ASSERT(setup_test_hub()); |
| |
| now = 123; |
| |
| struct osmo_fd *to_ofd; |
| struct osmo_sockaddr to_addr; |
| struct gtphub_peer_port *pp; |
| int send; |
| |
| const char *gtp_ping_from_sgsn = |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */ |
| "01" /* type 01: Echo request */ |
| "0004" /* length of 4 after header TEI */ |
| "00000000" /* header TEI == 0 in Echo */ |
| "abcd" /* some 2 octet sequence nr */ |
| "0000" /* N-PDU 0, no extension header (why is this here?) */ |
| ; |
| |
| const char *gtp_pong_to_sgsn = |
| "32" |
| "02" /* type 02: Echo response */ |
| "0006" /* length of 6 after header TEI */ |
| "00000000" /* header TEI == 0 in Echo */ |
| "abcd" /* same sequence nr */ |
| "0000" |
| "0e23" /* Recovery with restart counter */ |
| ; |
| |
| to_ofd = NULL; |
| ZERO_STRUCT(&to_addr); |
| send = gtphub_handle_buf(hub, GTPH_SIDE_SGSN, GTPH_PLANE_CTRL, |
| &sgsn_sender, buf, msg(gtp_ping_from_sgsn), |
| now, &reply_buf, &to_ofd, &to_addr); |
| OSMO_ASSERT(send > 0); |
| OSMO_ASSERT(to_addr.l); |
| OSMO_ASSERT(same_addr(&to_addr, &sgsn_sender)); |
| OSMO_ASSERT(to_ofd && (to_ofd->priv_nr == SGSNS_CTRL_FD)); |
| OSMO_ASSERT(reply_is(gtp_pong_to_sgsn)); |
| |
| pp = gtphub_port_find_sa(&hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_CTRL], |
| &sgsn_sender); |
| /* We don't record Echo peers. */ |
| OSMO_ASSERT(!pp); |
| |
| const char *gtp_ping_from_ggsn = |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */ |
| "01" /* type 01: Echo request */ |
| "0004" /* length of 4 after header TEI */ |
| "00000000" /* header TEI == 0 in Echo */ |
| "cdef" /* some 2 octet sequence nr */ |
| "0000" /* N-PDU 0, no extension header (why is this here?) */ |
| ; |
| |
| const char *gtp_pong_to_ggsn = |
| "32" |
| "02" /* type 02: Echo response */ |
| "0006" /* length of 6 after header TEI */ |
| "00000000" /* header TEI == 0 in Echo */ |
| "cdef" /* same sequence nr */ |
| "0000" |
| "0e23" /* Recovery with restart counter */ |
| ; |
| |
| to_ofd = NULL; |
| ZERO_STRUCT(&to_addr); |
| send = gtphub_handle_buf(hub, GTPH_SIDE_GGSN, GTPH_PLANE_CTRL, |
| &ggsn_sender, buf, msg(gtp_ping_from_ggsn), |
| now, &reply_buf, &to_ofd, &to_addr); |
| OSMO_ASSERT(send > 0); |
| OSMO_ASSERT(same_addr(&to_addr, &ggsn_sender)); |
| OSMO_ASSERT(to_ofd && (to_ofd->priv_nr == GGSNS_CTRL_FD)); |
| OSMO_ASSERT(reply_is(gtp_pong_to_ggsn)); |
| |
| pp = gtphub_port_find_sa(&hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_CTRL], |
| &sgsn_sender); |
| OSMO_ASSERT(!pp); |
| |
| |
| /* And all the same on the user plane. */ |
| |
| to_ofd = NULL; |
| ZERO_STRUCT(&to_addr); |
| send = gtphub_handle_buf(hub, GTPH_SIDE_SGSN, GTPH_PLANE_USER, |
| &sgsn_sender, buf, msg(gtp_ping_from_sgsn), |
| now, &reply_buf, &to_ofd, &to_addr); |
| OSMO_ASSERT(send > 0); |
| OSMO_ASSERT(to_addr.l); |
| OSMO_ASSERT(same_addr(&to_addr, &sgsn_sender)); |
| OSMO_ASSERT(to_ofd && (to_ofd->priv_nr == SGSNS_USER_FD)); |
| OSMO_ASSERT(reply_is(gtp_pong_to_sgsn)); |
| |
| pp = gtphub_port_find_sa(&hub->to_gsns[GTPH_SIDE_SGSN][GTPH_PLANE_USER], |
| &sgsn_sender); |
| OSMO_ASSERT(!pp); |
| |
| to_ofd = NULL; |
| ZERO_STRUCT(&to_addr); |
| send = gtphub_handle_buf(hub, GTPH_SIDE_GGSN, GTPH_PLANE_USER, |
| &ggsn_sender, buf, msg(gtp_ping_from_ggsn), |
| now, &reply_buf, &to_ofd, &to_addr); |
| OSMO_ASSERT(send > 0); |
| OSMO_ASSERT(same_addr(&to_addr, &ggsn_sender)); |
| OSMO_ASSERT(to_ofd && (to_ofd->priv_nr == GGSNS_USER_FD)); |
| OSMO_ASSERT(reply_is(gtp_pong_to_ggsn)); |
| |
| pp = gtphub_port_find_sa(&hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_USER], |
| &sgsn_sender); |
| OSMO_ASSERT(!pp); |
| |
| |
| OSMO_ASSERT(clear_test_hub()); |
| } |
| |
| |
| #define MSG_PDP_CTX_REQ(len, seq, restart, imsi, tei_u, tei_c, apn, gsn_c, gsn_u) \ |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr. */ \ |
| "10" /* type 16: Create PDP Context Request */ \ |
| len /* msg length = 8 + len (2 octets) */ \ |
| "00000000" /* No TEI yet */ \ |
| seq /* Sequence nr (2 octets) */ \ |
| "00" /* N-PDU 0 */ \ |
| "00" /* No extensions */ \ |
| /* IEs */ \ |
| "0e" restart /* 14: Recovery (restart counter: 1 octet) */ \ |
| "02" /* 2 = IMSI */ \ |
| imsi /* (8 octets) */ \ |
| "0f01" /* 15: Selection mode = MS provided APN, subscription not verified*/ \ |
| "10" /* 16: TEI Data I */ \ |
| tei_u /* (4 octets) */ \ |
| "11" /* 17: TEI Control Plane */ \ |
| tei_c /* (4 octets) */ \ |
| "1400" /* 20: NSAPI = 0*/ \ |
| "1a" /* 26: Charging Characteristics */ \ |
| "0800" \ |
| "80" /* 128: End User Address */ \ |
| "0002" /* length = 2: empty PDP Address */ \ |
| "f121" /* spare 0xf0, PDP organization 1, PDP type number 0x21 = 33 */ \ |
| "83" /* 131: Access Point Name */ \ |
| apn /* (2 octets length, N octets encoded APN-NI) */ \ |
| "84" /* 132: Protocol Configuration Options */ \ |
| "0015" /* length = 21 */ \ |
| "80c0231101010011036d69670868656d6d656c6967" \ |
| "85" /* 133: GSN Address */ \ |
| gsn_c /* (2 octets length, N octets addr) */ \ |
| "85" /* 133: GSN Address (second entry) */ \ |
| gsn_u /* (2 octets length, N octets addr) */ \ |
| "86" /* 134: MS International PSTN/ISDN Number (MSISDN) */ \ |
| "0007" /* length */ \ |
| "916407123254f6" /* 1946702123456(f) */ \ |
| "87" /* 135: Quality of Service (QoS) Profile */ \ |
| "0004" /* length */ \ |
| "00" /* priority */ \ |
| "0b921f" /* QoS profile data */ |
| |
| #define MSG_PDP_CTX_RSP(len, tei_h, seq, restart, tei_u, tei_c, gsn_c, gsn_u) \ |
| "32" \ |
| "11" /* Create PDP Context Response */ \ |
| len /* msg length = 8 + len (2 octets) */ \ |
| tei_h /* destination TEI (sent in req above) */ \ |
| seq /* mapped seq */ \ |
| "00" "00" \ |
| /* IEs */ \ |
| "01" /* 1: Cause */ \ |
| "80" /* value = 0b10000000 = response, no rejection. */ \ |
| "08" /* 8: Reordering Required */ \ |
| "00" /* not required. */ \ |
| "0e" restart /* 14: Recovery */ \ |
| "10" /* 16: TEI Data I */ \ |
| tei_u \ |
| "11" /* 17: TEI Control */ \ |
| tei_c \ |
| "7f" /* 127: Charging ID */ \ |
| "00000001" \ |
| "80" /* 128: End User Address */ \ |
| "0006" /* length = 6 */ \ |
| "f121" /* spare 0xf0, PDP organization 1, PDP type number 0x21 = 33 */ \ |
| "7f000002" \ |
| "84" /* 132: Protocol Configuration Options */ \ |
| "0014" /* len = 20 */ \ |
| "8080211002000010810608080808830600000000" \ |
| "85" /* 133: GSN Address (Ctrl) */ \ |
| gsn_c \ |
| "85" /* 133: GSN Address (User) */ \ |
| gsn_u \ |
| "87" /* 135: Quality of Service (QoS) Profile */ \ |
| "0004" /* length */ \ |
| "00" /* priority */ \ |
| "0b921f" /* QoS profile data */ |
| |
| #define msg_from_sgsn_c(A,B,C,D) msg_from_sgsn(GTPH_PLANE_CTRL, A,B,C,D) |
| #define msg_from_sgsn_u(A,B,C,D) msg_from_sgsn(GTPH_PLANE_USER, A,B,C,D) |
| static int msg_from_sgsn(int plane_idx, |
| struct osmo_sockaddr *_sgsn_sender, |
| struct osmo_sockaddr *ggsn_receiver, |
| const char *hex_from_sgsn, |
| const char *hex_to_ggsn) |
| { |
| struct osmo_fd *ggsn_ofd = NULL; |
| struct osmo_sockaddr ggsn_addr; |
| int send; |
| send = gtphub_handle_buf(hub, GTPH_SIDE_SGSN, plane_idx, _sgsn_sender, |
| buf, msg(hex_from_sgsn), now, |
| &reply_buf, &ggsn_ofd, &ggsn_addr); |
| LVL2_ASSERT(send > 0); |
| LVL2_ASSERT(same_addr(&ggsn_addr, ggsn_receiver)); |
| LVL2_ASSERT(reply_is(hex_to_ggsn)); |
| return 1; |
| } |
| |
| #define msg_from_ggsn_c(A,B,C,D) msg_from_ggsn(GTPH_PLANE_CTRL, A,B,C,D) |
| #define msg_from_ggsn_u(A,B,C,D) msg_from_ggsn(GTPH_PLANE_USER, A,B,C,D) |
| static int msg_from_ggsn(int plane_idx, |
| struct osmo_sockaddr *ggsn_sender, |
| struct osmo_sockaddr *sgsn_receiver, |
| const char *msg_from_ggsn, |
| const char *msg_to_sgsn) |
| { |
| struct osmo_fd *sgsn_ofd; |
| struct osmo_sockaddr sgsn_addr; |
| int send; |
| send = gtphub_handle_buf(hub, GTPH_SIDE_GGSN, plane_idx, ggsn_sender, |
| buf, msg(msg_from_ggsn), now, |
| &reply_buf, &sgsn_ofd, &sgsn_addr); |
| if (*msg_to_sgsn) { |
| LVL2_ASSERT(send > 0); |
| LVL2_ASSERT(same_addr(&sgsn_addr, sgsn_receiver)); |
| LVL2_ASSERT(reply_is(msg_to_sgsn)); |
| } |
| else |
| LVL2_ASSERT(send == 0); |
| return 1; |
| } |
| |
| static int create_pdp_ctx() |
| { |
| const char *gtp_req_from_sgsn = |
| MSG_PDP_CTX_REQ("0068", |
| "abcd", |
| "60", |
| "42000121436587f9", |
| "00000123", |
| "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", |
| "6d31", /* mapped seq ("abcd") */ |
| "23", |
| "42000121436587f9", |
| "00000001", /* Data I: tunnel's TEI */ |
| "00000001", /* Control: tunnel's TEI */ |
| "0009""08696e7465726e6574", |
| "0004""7f000201", /* replaced with gtphub's ggsn ctrl */ |
| "0004""7f000202" /* replaced with gtphub's ggsn user */ |
| ); |
| |
| LVL2_ASSERT(msg_from_sgsn_c(&sgsn_sender, |
| &resolved_ggsn_addr, |
| gtp_req_from_sgsn, |
| gtp_req_to_ggsn)); |
| LVL2_ASSERT(was_resolved_for("240010123456789", "internet")); |
| |
| LVL2_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)" |
| " @21945\n")); |
| |
| const char *gtp_resp_from_ggsn = |
| MSG_PDP_CTX_RSP("004e", |
| "00000001", /* destination TEI (sent in req above) */ |
| "6d31", /* 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") */ |
| "abcd", /* unmapped seq ("6d31") */ |
| "23", |
| "00000001", /* mapped TEI from GGSN ("567") */ |
| "00000001", /* 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) */ |
| LVL2_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr, |
| &sgsn_sender, |
| gtp_resp_from_ggsn, |
| gtp_resp_to_sgsn)); |
| |
| return 1; |
| } |
| |
| #define MSG_DEL_PDP_CTX_REQ(tei, seq) \ |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr. */ \ |
| "14" /* type 20: Delete PDP Context Request */ \ |
| "0008" /* msg length = 8 + len (2 octets) */ \ |
| tei /* TEI Ctrl */ \ |
| seq /* Sequence nr (2 octets) */ \ |
| "00" /* N-PDU 0 */ \ |
| "00" /* No extensions */ \ |
| /* IEs */ \ |
| "13fe" /* 19: Teardown ind = 0 */ \ |
| "1400" /* 20: NSAPI = 0*/ \ |
| |
| #define MSG_DEL_PDP_CTX_RSP(tei, seq) \ |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr. */ \ |
| "15" /* type 21: Delete PDP Context Response */ \ |
| "0006" /* msg length = 8 + len (2 octets) */ \ |
| tei /* TEI Ctrl */ \ |
| seq /* Sequence nr (2 octets) */ \ |
| "00" /* N-PDU 0 */ \ |
| "00" /* No extensions */ \ |
| /* IEs */ \ |
| "01" /* 1: Cause */ \ |
| "80" /* value = 0b10000000 = response, no rejection. */ \ |
| |
| static int delete_pdp_ctx_from_sgsn(void) |
| { |
| now += GTPH_EXPIRE_QUICKLY_SECS + 1; |
| gtphub_gc(hub, now); |
| |
| LVL2_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @21945\n")); |
| |
| /* TEI Ctrl from above and next sequence after abcd. */ |
| const char *gtp_req_from_sgsn = MSG_DEL_PDP_CTX_REQ("00000001", "abce"); |
| const char *gtp_req_to_ggsn = MSG_DEL_PDP_CTX_REQ("00000765", "6d32"); |
| |
| LVL2_ASSERT(msg_from_sgsn_c(&sgsn_sender, |
| &resolved_ggsn_addr, |
| gtp_req_from_sgsn, |
| gtp_req_to_ggsn)); |
| |
| /* 21945 + 31 = 21976 */ |
| LVL2_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @21976\n")); |
| |
| const char *gtp_resp_from_ggsn = |
| MSG_DEL_PDP_CTX_RSP("00000001", "6d32"); |
| const char *gtp_resp_to_sgsn = |
| MSG_DEL_PDP_CTX_RSP("00000321", "abce"); |
| |
| /* The response should go back to whichever port the request came from |
| * (unmapped by sequence nr) */ |
| LVL2_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr, |
| &sgsn_sender, |
| gtp_resp_from_ggsn, |
| gtp_resp_to_sgsn)); |
| |
| LVL2_ASSERT(tunnels_are("")); |
| |
| return 1; |
| } |
| |
| static int delete_pdp_ctx_from_ggsn(void) |
| { |
| now += GTPH_EXPIRE_QUICKLY_SECS + 1; |
| gtphub_gc(hub, now); |
| |
| LVL2_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @21945\n")); |
| |
| /* TEI Ctrl from above and next sequence after abcd. */ |
| const char *gtp_req_from_ggsn = MSG_DEL_PDP_CTX_REQ("00000001", "5432"); |
| const char *gtp_req_to_sgsn = MSG_DEL_PDP_CTX_REQ("00000321", "6d31"); |
| |
| LVL2_ASSERT(msg_from_ggsn_c(&ggsn_sender, |
| &resolved_sgsn_addr, |
| gtp_req_from_ggsn, |
| gtp_req_to_sgsn)); |
| |
| /* 21945 + 31 = 21976 */ |
| LVL2_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @21976\n")); |
| |
| const char *gtp_resp_from_sgsn = |
| MSG_DEL_PDP_CTX_RSP("00000001", "6d31"); |
| const char *gtp_resp_to_ggsn = |
| MSG_DEL_PDP_CTX_RSP("00000765", "5432"); |
| |
| /* The response should go back to whichever port the request came from |
| * (unmapped by sequence nr) */ |
| LVL2_ASSERT(msg_from_sgsn_c(&resolved_sgsn_addr, |
| &ggsn_sender, |
| gtp_resp_from_sgsn, |
| gtp_resp_to_ggsn)); |
| |
| LVL2_ASSERT(tunnels_are("")); |
| |
| return 1; |
| } |
| |
| static void test_one_pdp_ctx(int del_from_side) |
| { |
| if (del_from_side == GTPH_SIDE_SGSN) |
| LOG("test_one_pdp_ctx (del from SGSN)") |
| else LOG("test_one_pdp_ctx (del from GGSN)"); |
| OSMO_ASSERT(setup_test_hub()); |
| |
| OSMO_ASSERT(create_pdp_ctx()); |
| |
| struct gtphub_peer_port *ggsn_port = |
| gtphub_port_find_sa(&hub->to_gsns[GTPH_SIDE_GGSN][GTPH_PLANE_CTRL], |
| &resolved_ggsn_addr); |
| OSMO_ASSERT(ggsn_port); |
| struct gtphub_peer *ggsn = ggsn_port->peer_addr->peer; |
| /* now == 345; now + 30 == 375. |
| * seq mapping from above: |
| * 0xabcd == 43981 (sent in the packet) |
| * 0x6d31 == 27953 (harcoded seq mapping start val) */ |
| OSMO_ASSERT(nr_map_is(&ggsn->seq_map, "(43981->27953@375), ")); |
| |
| /* now == 345; now + (6 * 60 * 60) == 21600 + 345 == 21945. |
| * 0x00000321 == 801 (TEI from SGSN Ctrl) |
| * 0x00000123 == 291 (TEI from SGSN User) |
| * 0x00000765 == 1893 (TEI from GGSN Ctrl) |
| * 0x00000567 == 1383 (TEI from GGSN User) |
| * Mapped TEIs should be 1 and 2. */ |
| OSMO_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @21945\n")); |
| |
| if (del_from_side == GTPH_SIDE_SGSN) { |
| OSMO_ASSERT(delete_pdp_ctx_from_sgsn()); |
| } else { |
| OSMO_ASSERT(delete_pdp_ctx_from_ggsn()); |
| } |
| OSMO_ASSERT(tunnels_are("")); |
| |
| OSMO_ASSERT(clear_test_hub()); |
| } |
| |
| static void test_user_data(void) |
| { |
| LOG("test_user_data"); |
| |
| OSMO_ASSERT(setup_test_hub()); |
| |
| OSMO_ASSERT(create_pdp_ctx()); |
| |
| /* now == 345; now + (6 * 60 * 60) == 21600 + 345 == 21945. */ |
| OSMO_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @21945\n")); |
| |
| LOG("- user data starts"); |
| /* Now expect default port numbers for User plane. */ |
| resolve_to_ggsn("192.168.43.34", 2152); |
| resolve_to_sgsn("192.168.42.23", 2152); |
| |
| /* 10 minutes later */ |
| now += 600; |
| |
| const char *u_from_ggsn = |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */ |
| "ff" /* type 255: G-PDU */ |
| "0058" /* length: 88 + 8 octets == 96 */ |
| "00000001" /* mapped TEI for SGSN from create_pdp_ctx() */ |
| "0070" /* seq */ |
| "0000" /* No extensions */ |
| /* User data (ICMP packet), 96 - 12 = 84 octets */ |
| "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8" |
| "4156000000007241010000000000101112131415161718191a1b1c1d1e1f" |
| "202122232425262728292a2b2c2d2e2f3031323334353637" |
| ; |
| const char *u_to_sgsn = |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */ |
| "ff" /* type 255: G-PDU */ |
| "0058" /* length: 88 + 8 octets == 96 */ |
| "00000123" /* unmapped User TEI */ |
| "6d31" /* new mapped seq */ |
| "0000" |
| "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8" |
| "4156000000007241010000000000101112131415161718191a1b1c1d1e1f" |
| "202122232425262728292a2b2c2d2e2f3031323334353637" |
| ; |
| |
| /* This depends on create_pdp_ctx() sending resolved_sgsn_addr as GSN |
| * Address IEs in the GGSN's Create PDP Ctx Response. */ |
| OSMO_ASSERT(msg_from_ggsn_u(&ggsn_sender, |
| &resolved_sgsn_addr, |
| u_from_ggsn, |
| u_to_sgsn)); |
| |
| /* Make sure the user plane messages have refreshed the TEI mapping |
| * timeouts: 21945 + 600 == 22545. */ |
| OSMO_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @22545\n")); |
| |
| const char *u_from_sgsn = |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */ |
| "ff" /* type 255: G-PDU */ |
| "0058" /* length: 88 + 8 octets == 96 */ |
| "00000001" /* mapped User TEI for GGSN from create_pdp_ctx() */ |
| "1234" /* unknown seq */ |
| "0000" /* No extensions */ |
| /* User data (ICMP packet), 96 - 12 = 84 octets */ |
| "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8" |
| "4156000000007241010000000000101112131415161718191a1b1c1d1e1f" |
| "202122232425262728292a2b2c2d2e2f3031323334353637" |
| ; |
| const char *u_to_ggsn = |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */ |
| "ff" /* type 255: G-PDU */ |
| "0058" /* length: 88 + 8 octets == 96 */ |
| "00000567" /* unmapped User TEI */ |
| "6d31" /* unmapped seq */ |
| "0000" |
| "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8" |
| "4156000000007241010000000000101112131415161718191a1b1c1d1e1f" |
| "202122232425262728292a2b2c2d2e2f3031323334353637" |
| ; |
| |
| OSMO_ASSERT(msg_from_sgsn_u(&sgsn_sender, |
| &resolved_ggsn_addr, |
| u_from_sgsn, |
| u_to_ggsn)); |
| |
| /* Make sure the user plane messages have refreshed the TEI mapping |
| * timeouts: 21945 + 600 == 22545. Both timeouts refreshed: */ |
| OSMO_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @22545\n")); |
| |
| 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", |
| "00000002", /* mapped TEI Data I ("123") */ |
| "00000002", /* 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( |
| "TEI=2:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)" |
| " @21945\n")); |
| |
| const char *gtp_resp_from_ggsn = |
| MSG_PDP_CTX_RSP("004e", |
| "00000002", /* 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", |
| "00000002", /* mapped TEI from GGSN ("567") */ |
| "00000002", /* 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 void test_peer_restarted(void) |
| { |
| LOG("test_peer_restarted"); |
| |
| OSMO_ASSERT(setup_test_hub()); |
| |
| OSMO_ASSERT(create_pdp_ctx()); |
| |
| now += 10; |
| |
| const char *gtp_req_from_sgsn = |
| MSG_PDP_CTX_REQ("0068", |
| "1234", /* brand new seq */ |
| "61", /* DIFFERING restart counter */ |
| "42000121436587f9", |
| "00000abc", |
| "00000cba", |
| "0009""08696e7465726e6574", /* "(8)internet" */ |
| "0004""c0a82a17", /* same as default sgsn_sender */ |
| "0004""c0a82a17" |
| ); |
| const char *gtp_req_to_ggsn = |
| MSG_PDP_CTX_REQ("0068", |
| "6d33", /* mapped seq ("1234") */ |
| "23", |
| "42000121436587f9", |
| "00000002", /* mapped TEI Data I ("123") */ |
| "00000002", /* 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( |
| "TEI=2:" |
| " 192.168.42.23 (TEI C=cba U=abc)" |
| " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)" |
| " @21955\n" |
| "TEI=1:" |
| " (uninitialized) (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @21945\n" |
| )); |
| |
| const char *gtp_resp_from_ggsn = |
| MSG_PDP_CTX_RSP("004e", |
| "00000002", /* destination TEI (sent in req above) */ |
| "6d33", /* mapped seq */ |
| "01", /* restart */ |
| "00000def", /* TEI U */ |
| "00000fde", /* TEI C */ |
| "0004""c0a82b22", /* GSN addresses */ |
| "0004""c0a82b22" /* (== resolved_ggsn_addr) */ |
| ); |
| const char *gtp_resp_to_sgsn = |
| MSG_PDP_CTX_RSP("004e", |
| "00000cba", /* unmapped TEI ("005") */ |
| "1234", /* unmapped seq ("6d32") */ |
| "23", |
| "00000002", /* mapped TEI from GGSN ("567") */ |
| "00000002", /* 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 void test_peer_restarted_reusing_tei(void) |
| { |
| LOG("test_peer_restarted_reusing_tei"); |
| |
| OSMO_ASSERT(setup_test_hub()); |
| |
| OSMO_ASSERT(create_pdp_ctx()); |
| |
| now += 10; |
| |
| const char *gtp_req_from_sgsn = |
| MSG_PDP_CTX_REQ("0068", |
| "1234", /* brand new seq */ |
| "61", /* DIFFERING restart counter */ |
| "42000121436587f9", |
| "00000123", /* SAME TEI */ |
| "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", |
| "6d33", /* seq 6d31 + 2, after "out-of-band" Delete PDP Ctx |
| due to differing restart counter. */ |
| "23", |
| "42000121436587f9", |
| "00000002", /* mapped TEI Data I ("123") */ |
| "00000002", /* 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( |
| "TEI=2:" /* being established after restart */ |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)" |
| " @21955\n" |
| "TEI=1:" /* invalidated due to restart */ |
| " (uninitialized) (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @21945\n" |
| )); |
| |
| /* An "out-of-band" delete request should have been sent to the GGSN |
| * (checked by expected log output in gtphub_test.ok), and the GGSN |
| * will (usually) send a Delete Response like this: */ |
| const char *gtp_del_resp_from_ggsn = |
| MSG_DEL_PDP_CTX_RSP("00000001", "6d32"); |
| |
| /* For this response (due to peer restart) we expect no forwarded |
| * message. */ |
| OSMO_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr, |
| &sgsn_sender, |
| gtp_del_resp_from_ggsn, |
| "")); |
| |
| OSMO_ASSERT(tunnels_are( |
| "TEI=2:" /* still being established after restart */ |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)" |
| " @21955\n" |
| )); |
| |
| const char *gtp_resp_from_ggsn = |
| MSG_PDP_CTX_RSP("004e", |
| "00000002", /* destination TEI (sent in req above) */ |
| "6d33", /* mapped seq */ |
| "01", /* restart */ |
| "00000def", /* TEI U */ |
| "00000fde", /* 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 ("005") */ |
| "1234", /* unmapped seq ("6d33") */ |
| "23", |
| "00000002", /* mapped TEI from GGSN ("567") */ |
| "00000002", /* 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(tunnels_are( |
| "TEI=2:" /* still being established after restart */ |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=fde U=def)" |
| " @21955\n" |
| )); |
| |
| OSMO_ASSERT(clear_test_hub()); |
| } |
| |
| static void test_sgsn_behind_nat(void) |
| { |
| LOG("test_user_data"); |
| |
| OSMO_ASSERT(setup_test_hub()); |
| hub->sgsn_use_sender = 1; /* <-- Main difference to test_user_data() */ |
| resolve_to_sgsn("192.168.42.23", 423); /* Same as sender */ |
| |
| OSMO_ASSERT(create_pdp_ctx()); |
| |
| /* now == 345; now + (6 * 60 * 60) == 21600 + 345 == 21945. */ |
| OSMO_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @21945\n")); |
| |
| LOG("- user data starts"); |
| /* Now expect default port numbers for User plane -- except SGSN. */ |
| resolve_to_ggsn("192.168.43.34", 2152); |
| |
| /* 10 minutes later */ |
| now += 600; |
| |
| const char *u_from_ggsn = |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */ |
| "ff" /* type 255: G-PDU */ |
| "0058" /* length: 88 + 8 octets == 96 */ |
| "00000001" /* mapped User TEI for SGSN from create_pdp_ctx() */ |
| "0070" /* seq */ |
| "0000" /* No extensions */ |
| /* User data (ICMP packet), 96 - 12 = 84 octets */ |
| "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8" |
| "4156000000007241010000000000101112131415161718191a1b1c1d1e1f" |
| "202122232425262728292a2b2c2d2e2f3031323334353637" |
| ; |
| const char *u_to_sgsn = |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */ |
| "ff" /* type 255: G-PDU */ |
| "0058" /* length: 88 + 8 octets == 96 */ |
| "00000123" /* unmapped User TEI */ |
| "6d31" /* new mapped seq */ |
| "0000" |
| "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8" |
| "4156000000007241010000000000101112131415161718191a1b1c1d1e1f" |
| "202122232425262728292a2b2c2d2e2f3031323334353637" |
| ; |
| |
| /* This depends on create_pdp_ctx() sending resolved_sgsn_addr as GSN |
| * Address IEs in the GGSN's Create PDP Ctx Response. */ |
| OSMO_ASSERT(msg_from_ggsn_u(&ggsn_sender, |
| &resolved_sgsn_addr, |
| u_from_ggsn, |
| u_to_sgsn)); |
| |
| /* Make sure the user plane messages have refreshed the TEI mapping |
| * timeouts: 21945 + 600 == 22545. */ |
| OSMO_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @22545\n")); |
| |
| const char *u_from_sgsn = |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */ |
| "ff" /* type 255: G-PDU */ |
| "0058" /* length: 88 + 8 octets == 96 */ |
| "00000001" /* mapped User TEI for GGSN from create_pdp_ctx() */ |
| "1234" /* unknown seq */ |
| "0000" /* No extensions */ |
| /* User data (ICMP packet), 96 - 12 = 84 octets */ |
| "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8" |
| "4156000000007241010000000000101112131415161718191a1b1c1d1e1f" |
| "202122232425262728292a2b2c2d2e2f3031323334353637" |
| ; |
| const char *u_to_ggsn = |
| "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr */ |
| "ff" /* type 255: G-PDU */ |
| "0058" /* length: 88 + 8 octets == 96 */ |
| "00000567" /* unmapped User TEI */ |
| "6d31" /* unmapped seq */ |
| "0000" |
| "45000054daee40004001f7890a172a010a172a02080060d23f590071e3f8" |
| "4156000000007241010000000000101112131415161718191a1b1c1d1e1f" |
| "202122232425262728292a2b2c2d2e2f3031323334353637" |
| ; |
| |
| OSMO_ASSERT(msg_from_sgsn_u(&sgsn_sender, |
| &resolved_ggsn_addr, |
| u_from_sgsn, |
| u_to_ggsn)); |
| |
| /* Make sure the user plane messages have refreshed the TEI mapping |
| * timeouts: 21945 + 600 == 22545. Both timeouts refreshed: */ |
| OSMO_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @22545\n")); |
| |
| OSMO_ASSERT(clear_test_hub()); |
| } |
| |
| void test_parallel_context_creation(void) |
| { |
| LOG("test_parallel_context_creation"); |
| |
| OSMO_ASSERT(setup_test_hub()); |
| |
| const char *gtp_req_from_sgsn1 = |
| MSG_PDP_CTX_REQ("0068", |
| "abcd", |
| "60", |
| "42000121436587f9", |
| "00000123", |
| "00000321", |
| "0009""08696e7465726e6574", /* "(8)internet" */ |
| "0004""c0a82a17", /* same as default sgsn_sender */ |
| "0004""c0a82a17" |
| ); |
| const char *gtp_req_to_ggsn1 = |
| MSG_PDP_CTX_REQ("0068", |
| "6d31", /* mapped seq ("abcd") */ |
| "23", |
| "42000121436587f9", |
| "00000001", /* mapped TEI Data I ("123") */ |
| "00000001", /* 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_sgsn1, |
| gtp_req_to_ggsn1)); |
| |
| OSMO_ASSERT(tunnels_are( |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)" |
| " @21945\n")); |
| |
| now ++; |
| |
| const char *gtp_req_from_sgsn2 = |
| MSG_PDP_CTX_REQ("0068", |
| "abce", |
| "60", |
| "42000121436588f9", |
| "00000124", |
| "00000322", |
| "0009""08696e7465726e6574", /* "(8)internet" */ |
| "0004""c0a82a17", /* same as default sgsn_sender */ |
| "0004""c0a82a17" |
| ); |
| const char *gtp_req_to_ggsn2 = |
| MSG_PDP_CTX_REQ("0068", |
| "6d32", /* mapped seq ("abce") */ |
| "23", |
| "42000121436588f9", |
| "00000002", /* mapped TEI Data I ("124") */ |
| "00000002", /* mapped TEI Control ("322") */ |
| "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_sgsn2, |
| gtp_req_to_ggsn2)); |
| |
| OSMO_ASSERT(tunnels_are( |
| "TEI=2:" |
| " 192.168.42.23 (TEI C=322 U=124)" |
| " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)" |
| " @21946\n" |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)" |
| " @21945\n" |
| )); |
| |
| now ++; |
| |
| const char *gtp_resp_from_ggsn1 = |
| MSG_PDP_CTX_RSP("004e", |
| "00000001", /* destination TEI (sent in req above) */ |
| "6d31", /* mapped seq */ |
| "01", /* restart */ |
| "00000567", /* TEI U */ |
| "00000765", /* TEI C */ |
| "0004""c0a82b22", /* GSN addresses */ |
| "0004""c0a82b22" /* (== resolved_ggsn_addr) */ |
| ); |
| const char *gtp_resp_to_sgsn1 = |
| MSG_PDP_CTX_RSP("004e", |
| "00000321", /* unmapped TEI ("001") */ |
| "abcd", /* unmapped seq ("6d31") */ |
| "23", |
| "00000001", /* mapped TEI from GGSN ("567") */ |
| "00000001", /* mapped TEI from GGSN ("765") */ |
| "0004""7f000101", /* gtphub's address towards SGSNs (Ctrl) */ |
| "0004""7f000102" /* gtphub's address towards SGSNs (User) */ |
| ); |
| |
| OSMO_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr, |
| &sgsn_sender, |
| gtp_resp_from_ggsn1, |
| gtp_resp_to_sgsn1)); |
| |
| OSMO_ASSERT(tunnels_are( |
| "TEI=2:" |
| " 192.168.42.23 (TEI C=322 U=124)" |
| " <-> 192.168.43.34/(uninitialized) (TEI C=0 U=0)" |
| " @21946\n" |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @21947\n" |
| )); |
| |
| now ++; |
| |
| const char *gtp_resp_from_ggsn2 = |
| MSG_PDP_CTX_RSP("004e", |
| "00000002", /* destination TEI (sent in req above) */ |
| "6d32", /* mapped seq */ |
| "01", /* restart */ |
| "00000568", /* TEI U */ |
| "00000766", /* TEI C */ |
| "0004""c0a82b22", /* GSN addresses */ |
| "0004""c0a82b22" /* (== resolved_ggsn_addr) */ |
| ); |
| const char *gtp_resp_to_sgsn2 = |
| MSG_PDP_CTX_RSP("004e", |
| "00000322", /* unmapped TEI ("001") */ |
| "abce", /* unmapped seq ("6d31") */ |
| "23", |
| "00000002", /* mapped TEI from GGSN ("567") */ |
| "00000002", /* mapped TEI from GGSN ("765") */ |
| "0004""7f000101", /* gtphub's address towards SGSNs (Ctrl) */ |
| "0004""7f000102" /* gtphub's address towards SGSNs (User) */ |
| ); |
| |
| OSMO_ASSERT(msg_from_ggsn_c(&resolved_ggsn_addr, |
| &sgsn_sender, |
| gtp_resp_from_ggsn2, |
| gtp_resp_to_sgsn2)); |
| |
| OSMO_ASSERT(tunnels_are( |
| "TEI=2:" |
| " 192.168.42.23 (TEI C=322 U=124)" |
| " <-> 192.168.43.34 (TEI C=766 U=568)" |
| " @21948\n" |
| "TEI=1:" |
| " 192.168.42.23 (TEI C=321 U=123)" |
| " <-> 192.168.43.34 (TEI C=765 U=567)" |
| " @21947\n" |
| )); |
| |
| OSMO_ASSERT(clear_test_hub()); |
| } |
| |
| |
| static struct log_info_cat gtphub_categories[] = { |
| [DGTPHUB] = { |
| .name = "DGTPHUB", |
| .description = "GTP Hub", |
| .color = "\033[1;33m", |
| .enabled = 1, .loglevel = LOGL_DEBUG, |
| }, |
| }; |
| |
| static struct log_info info = { |
| .cat = gtphub_categories, |
| .num_cat = ARRAY_SIZE(gtphub_categories), |
| }; |
| |
| int main(int argc, char **argv) |
| { |
| osmo_init_logging(&info); |
| osmo_gtphub_ctx = talloc_named_const(NULL, 0, "osmo_gtphub"); |
| |
| test_nr_map_basic(); |
| test_nr_map_wrap(); |
| test_expiry(); |
| test_echo(); |
| test_one_pdp_ctx(GTPH_SIDE_SGSN); |
| test_one_pdp_ctx(GTPH_SIDE_GGSN); |
| test_user_data(); |
| test_reused_tei(); |
| test_peer_restarted(); |
| test_peer_restarted_reusing_tei(); |
| test_sgsn_behind_nat(); |
| test_parallel_context_creation(); |
| printf("Done\n"); |
| |
| talloc_report_full(osmo_gtphub_ctx, stderr); |
| OSMO_ASSERT(talloc_total_blocks(osmo_gtphub_ctx) == 1); |
| return 0; |
| } |
| |