From c8a614d2e9c56fe13c22f239be82f2a2c958e039 Mon Sep 17 00:00:00 2001 From: Neels Hofmeyr Date: Thu, 24 Sep 2015 17:32:30 +0200 Subject: Add GTP hub initial code base. First steps towards a new GTP hub. The aim is to mux GTP connections, so that multiple SGSN <--> GGSN links can pass through a single point. Background: allow having more than one SGSN, possibly in various remote locations. The recent addition of OAP to GSUP is related to the same background idea. (This is a collapsed patch of various changes that do not make sense to review in chronological order anymore, since a lot of it has thorougly transmorphed after it was first committed.) Sponsored-by: On-Waves ehf --- openbsc/tests/gtphub/gtphub_test.c | 709 +++++++++++++++++++++++++++++++++++++ 1 file changed, 709 insertions(+) create mode 100644 openbsc/tests/gtphub/gtphub_test.c (limited to 'openbsc/tests/gtphub/gtphub_test.c') diff --git a/openbsc/tests/gtphub/gtphub_test.c b/openbsc/tests/gtphub/gtphub_test.c new file mode 100644 index 000000000..af8f3ed75 --- /dev/null +++ b/openbsc/tests/gtphub/gtphub_test.c @@ -0,0 +1,709 @@ +/* Test the GTP hub */ + +/* (C) 2015 by sysmocom s.f.m.c. GmbH + * All Rights Reserved + * + * Author: Neels Hofmeyr + * + * 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 . + * + */ + +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include +#include +#include + +#define EXPIRE_ALL ((60 * GTPH_TEI_MAPPING_EXPIRY_MINUTES) + 1) + +/* Make non-public API accessible */ + +void gtphub_init(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); + 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, "(%d->%d@%d), ", + (int)m->orig, + (int)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 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); + 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 +} + + + +/* override, requires '-Wl,--wrap=gtphub_resolve_ggsn_addr' */ +int __real_gtphub_resolve_ggsn_addr(struct gtphub *hub, + struct osmo_sockaddr *result, + struct gtp_packet_desc *p); + +struct osmo_sockaddr resolved_ggsn_addr = {.l = 0}; +int __wrap_gtphub_resolve_ggsn_addr(struct gtphub *hub, + struct osmo_sockaddr *result, + struct gtp_packet_desc *p) +{ + osmo_sockaddr_copy(result, &resolved_ggsn_addr); + printf("Wrap: returning GGSN addr: %s\n", + osmo_sockaddr_to_str(result)); + return (resolved_ggsn_addr.l != 0)? 0 : -1; +} + +#define buf_len 1024 +static uint8_t buf[buf_len]; + +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 msg_is(MSG) _msg_is(MSG, __FILE__, __LINE__) +static int _msg_is(const char *hex, const char *file, int line) +{ + struct gtp1_header_long *h = (void*)buf; + int len = ntoh16(h->length) + 8; + const char *dump = osmo_hexdump_nospc(buf, len); + int cmp = strcmp(dump, hex); + + if (cmp != 0) { + printf("\n%s:%d: msg_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; +} + +static void test_echo(void) +{ + struct gtphub _hub; + struct gtphub *hub = &_hub; + time_t now = 123; + + gtphub_init(hub); + + 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 16 octet sequence nr */ + "0000" /* N-PDU 0, no extension header (why is this here?) */ + ; + + /* Same with mapped sequence number */ + const char *gtp_ping_to_ggsn = + "32" "01" "0004" "00000000" + "6d31" /* mapped seq */ + "00" "00"; + + const char *gtp_pong_from_ggsn = + "32" + "02" /* type 02: Echo response */ + "0006" /* len */ + "00000000" /* tei */ + "6d31" /* mapped seq */ + "0000" /* ext */ + "0e01" /* 0e: Recovery, val == 1 */ + ; + /* Same with unmapped sequence number */ + const char *gtp_pong_to_sgsn = + "32" "02" "0006" "00000000" + "abcd" /* unmapped seq */ + "00" "00" "0e01"; + + /* Set the GGSN address that gtphub is forced to resolve to. */ + OSMO_ASSERT(osmo_sockaddr_init_udp(&resolved_ggsn_addr, + "192.168.43.34", 434) + == 0); + + /* according to spec, we'd always send to port 2123 instead... + struct osmo_sockaddr ggsn_standard_port; + OSMO_ASSERT(osmo_sockaddr_init_udp(&ggsn_standard_port, + "192.168.43.34", 2123) + == 0); + */ + + struct osmo_sockaddr orig_sgsn_addr; + OSMO_ASSERT(osmo_sockaddr_init(&orig_sgsn_addr, + AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, + "192.168.42.23", 423) == 0); + struct osmo_fd *ggsn_ofd = NULL; + struct osmo_sockaddr ggsn_addr; + int send; + send = gtphub_from_sgsns_handle_buf(hub, GTPH_PLANE_CTRL, &orig_sgsn_addr, + buf, msg(gtp_ping_from_sgsn), now, + &ggsn_ofd, &ggsn_addr); + OSMO_ASSERT(send > 0); + OSMO_ASSERT(ggsn_addr.l); + OSMO_ASSERT(same_addr(&ggsn_addr, &resolved_ggsn_addr)); + OSMO_ASSERT(msg_is(gtp_ping_to_ggsn)); + + struct osmo_fd *sgsn_ofd; + struct osmo_sockaddr sgsn_addr; + send = gtphub_from_ggsns_handle_buf(hub, GTPH_PLANE_CTRL, &ggsn_addr, + buf, msg(gtp_pong_from_ggsn), now, + &sgsn_ofd, &sgsn_addr); + OSMO_ASSERT(send > 0); + OSMO_ASSERT(same_addr(&sgsn_addr, &orig_sgsn_addr)); + OSMO_ASSERT(msg_is(gtp_pong_to_sgsn)); + + struct gtphub_peer_port *ggsn_port = + gtphub_port_find_sa(&hub->to_ggsns[GTPH_PLANE_CTRL], + &resolved_ggsn_addr); + OSMO_ASSERT(ggsn_port); + struct gtphub_peer *ggsn = ggsn_port->peer_addr->peer; + /* now == 123; now + 30 == 153. */ + OSMO_ASSERT(nr_map_is(&ggsn->seq_map, "(43981->27953@153), ")); + + OSMO_ASSERT(nr_map_is(&hub->tei_map[GTPH_PLANE_CTRL], "")); + OSMO_ASSERT(nr_map_is(&hub->tei_map[GTPH_PLANE_USER], "")); + + gtphub_gc(hub, now + EXPIRE_ALL); +} + +static void test_create_pdp_ctx(void) +{ + struct gtphub _hub; + struct gtphub *hub = &_hub; + time_t now = 345; + + gtphub_init(hub); + + /* Tell this mock gtphub its local address for this test. */ + OSMO_ASSERT(gsn_addr_from_str(&hub->to_sgsns[GTPH_PLANE_CTRL].local_addr, + "127.0.1.1") == 0); + OSMO_ASSERT(gsn_addr_from_str(&hub->to_sgsns[GTPH_PLANE_USER].local_addr, + "127.0.1.2") == 0); + OSMO_ASSERT(gsn_addr_from_str(&hub->to_ggsns[GTPH_PLANE_CTRL].local_addr, + "127.0.2.1") == 0); + OSMO_ASSERT(gsn_addr_from_str(&hub->to_ggsns[GTPH_PLANE_USER].local_addr, + "127.0.2.2") == 0); + + /* This is copied from a packet that sgsnemu sends. */ + const char *gtp_req_from_sgsn = + "32" /* 0b001'1 0010: version 1, protocol GTP, with seq nr. */ + "10" /* type 16: Create PDP Context Request */ + "0067" /* length = 8 + 103 */ + "00000000" /* No TEI yet */ + "abcd" /* Sequence nr */ + "00" /* N-PDU 0 */ + "00" /* No extensions */ + /* IEs */ + "02" /* 2 = IMSI */ + "42000121436587f9" + "0e" "60" /* 14: Recovery = 96 */ + "0f01" /* 15: Selection mode = MS provided APN, subscription not verified*/ + "10" /* 16: TEI Data I */ + "00000123" + "11" /* 17: TEI Control Plane */ + "00000321" + "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 */ + "0008" /* length = 8 */ + "696e7465726e6574" /* "internet" */ + "84" /* 132: Protocol Configuration Options */ + "0015" /* length = 21 */ + "80c0231101010011036d69670868656d6d656c6967" + "85" /* 133: GSN Address */ + "0004" /* length */ + "abcdef00" + "85" /* 133: GSN Address (second entry) */ + "0004" /* length */ + "fedcba00" + "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 */ + ; + + const char *gtp_req_to_ggsn = + "32" "10" "0067" "00000000" + "6d31" /* mapped seq ("abcd") */ + "00" "00" "02" "42000121436587f9" "0e60" "0f01" + "10" "00000001" /* mapped TEI Data I ("123") */ + "11" "00000001" /* mapped TEI Control ("321") */ + "1400" "1a" "0800" "80" "0002" "f121" "83" + "0008" "696e7465726e6574" "84" "0015" + "80c0231101010011036d69670868656d6d656c6967" "85" "0004" + "7f000201" /* replaced with gtphub's address ggsn ctrl */ + "85" "0004" + "7f000202" /* replaced with gtphub's address ggsn user */ + "86" "0007" "916407123254f6" + "87" "0004" "00" "0b921f" + ; + + const char *gtp_resp_from_ggsn = + "32" + "11" /* Create PDP Context Response */ + "004e" /* length = 78 + 8 */ + "00000001" /* destination TEI (sent in req above) */ + "6d31" /* mapped seq */ + "00" "00" + /* IEs */ + "01" /* 1: Cause */ + "80" /* value = 0b10000000 = response, no rejection. */ + "08" /* 8: Reordering Required */ + "00" /* not required. */ + "0e" "01" /* 14: Recovery = 1 */ + "10" /* 16: TEI Data I */ + "00000567" + "11" /* 17: TEI Control */ + "00000765" + "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) */ + "0004" /* length */ + "7f000002" + "85" /* 133: GSN Address (User) */ + "0004" /* length */ + "7f000002" + "87" /* 135: Quality of Service (QoS) Profile */ + "0004" /* length */ + "00" /* priority */ + "0b921f" /* QoS profile data */ + ; + + const char *gtp_resp_to_sgsn = + "32" "11" "004e" + "00000321" /* unmapped TEI ("001") */ + "abcd" /* unmapped seq ("6d31") */ + "00" "00" "01" "80" "08" "00" "0e" "01" + "10" "00000002" /* mapped TEI from GGSN ("567") */ + "11" "00000002" /* mapped TEI from GGSN ("765") */ + "7f" "00000001" "80" "0006" "f121" "7f000002" "84" "0014" + "8080211002000010810608080808830600000000" + "85" "0004" + "7f000101" /* gtphub's address towards SGSNs (Ctrl) */ + "85" "0004" + "7f000102" /* gtphub's address towards SGSNs (User) */ + "87" "0004" "00" "0b921f" + ; + + /* Set the GGSN address that gtphub is forced to resolve to. */ + OSMO_ASSERT(osmo_sockaddr_init_udp(&resolved_ggsn_addr, + "192.168.43.34", 434) + == 0); + + struct osmo_sockaddr orig_sgsn_addr; + OSMO_ASSERT(osmo_sockaddr_init(&orig_sgsn_addr, + AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, + "192.168.42.23", 423) == 0); + struct osmo_fd *ggsn_ofd = NULL; + struct osmo_sockaddr ggsn_addr; + int send; + send = gtphub_from_sgsns_handle_buf(hub, GTPH_PLANE_CTRL, &orig_sgsn_addr, + buf, msg(gtp_req_from_sgsn), now, + &ggsn_ofd, &ggsn_addr); + OSMO_ASSERT(send > 0); + OSMO_ASSERT(same_addr(&ggsn_addr, &resolved_ggsn_addr)); + OSMO_ASSERT(msg_is(gtp_req_to_ggsn)); + + struct osmo_fd *sgsn_ofd; + struct osmo_sockaddr sgsn_addr; + send = gtphub_from_ggsns_handle_buf(hub, GTPH_PLANE_CTRL, &ggsn_addr, + buf, msg(gtp_resp_from_ggsn), now, + &sgsn_ofd, &sgsn_addr); + OSMO_ASSERT(send > 0); + OSMO_ASSERT(same_addr(&sgsn_addr, &orig_sgsn_addr)); + OSMO_ASSERT(msg_is(gtp_resp_to_sgsn)); + + struct gtphub_peer_port *ggsn_port = + gtphub_port_find_sa(&hub->to_ggsns[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(nr_map_is(&hub->tei_map[GTPH_PLANE_CTRL], "(801->1@21945), (1893->2@21945), ")); + OSMO_ASSERT(nr_map_is(&hub->tei_map[GTPH_PLANE_USER], "(291->1@21945), (1383->2@21945), ")); + + gtphub_gc(hub, now + EXPIRE_ALL); +} + +static struct log_info_cat gtphub_categories[] = { + [DGTPHUB] = { + .name = "DGTPHUB", + .description = "GTP Hub", + .color = "\033[1;33m", + .enabled = 1, .loglevel = LOGL_NOTICE, + }, +}; + +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_expiry(); + test_echo(); + test_create_pdp_ctx(); + printf("Done\n"); + + talloc_report_full(osmo_gtphub_ctx, stderr); + OSMO_ASSERT(talloc_total_blocks(osmo_gtphub_ctx) == 1); + return 0; +} + -- cgit v1.2.3