diff options
Diffstat (limited to 'openbsc/tests/bsc-nat')
| -rw-r--r-- | openbsc/tests/bsc-nat/Makefile.am | 17 | ||||
| -rw-r--r-- | openbsc/tests/bsc-nat/bsc_data.c | 154 | ||||
| -rw-r--r-- | openbsc/tests/bsc-nat/bsc_nat_test.c | 541 |
3 files changed, 712 insertions, 0 deletions
diff --git a/openbsc/tests/bsc-nat/Makefile.am b/openbsc/tests/bsc-nat/Makefile.am new file mode 100644 index 000000000..5a066a491 --- /dev/null +++ b/openbsc/tests/bsc-nat/Makefile.am @@ -0,0 +1,17 @@ +INCLUDES = $(all_includes) -I$(top_srcdir)/include +AM_CFLAGS=-Wall -ggdb3 $(LIBOSMOCORE_CFLAGS) + +EXTRA_DIST = bsc_data.c + +noinst_PROGRAMS = bsc_nat_test + +bsc_nat_test_SOURCES = bsc_nat_test.c \ + $(top_srcdir)/src/nat/bsc_filter.c \ + $(top_srcdir)/src/nat/bsc_sccp.c \ + $(top_srcdir)/src/nat/bsc_nat_utils.c \ + $(top_srcdir)/src/nat/bsc_mgcp_utils.c \ + $(top_srcdir)/src/mgcp/mgcp_protocol.c \ + $(top_srcdir)/src/mgcp/mgcp_network.c \ + $(top_srcdir)/src/bssap.c +bsc_nat_test_LDADD = $(top_builddir)/src/libbsc.a $(top_builddir)/src/libsccp.a $(LIBOSMOCORE_LIBS) + diff --git a/openbsc/tests/bsc-nat/bsc_data.c b/openbsc/tests/bsc-nat/bsc_data.c new file mode 100644 index 000000000..34242db8c --- /dev/null +++ b/openbsc/tests/bsc-nat/bsc_data.c @@ -0,0 +1,154 @@ +/* test data */ + +/* BSC -> MSC, CR */ +static const u_int8_t bsc_cr[] = { +0x00, 0x2e, 0xfd, +0x01, 0x00, 0x00, 0x15, 0x02, 0x02, 0x04, 0x02, +0x42, 0xfe, 0x0f, 0x21, 0x00, 0x1f, 0x57, 0x05, +0x08, 0x00, 0x72, 0xf4, 0x80, 0x20, 0x1c, 0xc3, +0x51, 0x17, 0x12, 0x05, 0x08, 0x20, 0x72, 0xf4, +0x90, 0x20, 0x1d, 0x50, 0x08, 0x29, 0x47, 0x80, +0x00, 0x00, 0x00, 0x00, 0x80, 0x00 }; + +static const u_int8_t bsc_cr_patched[] = { +0x00, 0x2e, 0xfd, +0x01, 0x00, 0x00, 0x05, 0x02, 0x02, 0x04, 0x02, +0x42, 0xfe, 0x0f, 0x21, 0x00, 0x1f, 0x57, 0x05, +0x08, 0x00, 0x72, 0xf4, 0x80, 0x20, 0x1c, 0xc3, +0x51, 0x17, 0x12, 0x05, 0x08, 0x20, 0x72, 0xf4, +0x90, 0x20, 0x1d, 0x50, 0x08, 0x29, 0x47, 0x80, +0x00, 0x00, 0x00, 0x00, 0x80, 0x00 }; + +/* CC, MSC -> BSC */ +static const u_int8_t msc_cc[] = { +0x00, 0x0a, 0xfd, +0x02, 0x00, 0x00, 0x05, 0x01, 0x1f, 0xe4, 0x02, +0x01, 0x00 }; +static const u_int8_t msc_cc_patched[] = { +0x00, 0x0a, 0xfd, +0x02, 0x00, 0x00, 0x15, 0x01, 0x1f, 0xe4, 0x02, +0x01, 0x00 }; + +/* Classmark, BSC -> MSC */ +static const u_int8_t bsc_dtap[] = { +0x00, 0x17, 0xfd, +0x06, 0x01, 0x1f, 0xe4, 0x00, 0x01, 0x10, 0x00, +0x0e, 0x54, 0x12, 0x03, 0x50, 0x18, 0x93, 0x13, +0x06, 0x60, 0x14, 0x45, 0x00, 0x81, 0x00 }; + +static const u_int8_t bsc_dtap_patched[] = { +0x00, 0x17, 0xfd, +0x06, 0x01, 0x1f, 0xe4, 0x00, 0x01, 0x10, 0x00, +0x0e, 0x54, 0x12, 0x03, 0x50, 0x18, 0x93, 0x13, +0x06, 0x60, 0x14, 0x45, 0x00, 0x81, 0x00 }; + +/* Clear command, MSC -> BSC */ +static const u_int8_t msc_dtap[] = { +0x00, 0x0d, 0xfd, +0x06, 0x00, 0x00, 0x05, 0x00, 0x01, 0x06, 0x00, +0x04, 0x20, 0x04, 0x01, 0x09 }; +static const u_int8_t msc_dtap_patched[] = { +0x00, 0x0d, 0xfd, +0x06, 0x00, 0x00, 0x15, 0x00, 0x01, 0x06, 0x00, +0x04, 0x20, 0x04, 0x01, 0x09 }; + +/*RLSD, MSC -> BSC */ +static const u_int8_t msc_rlsd[] = { +0x00, 0x0a, 0xfd, +0x04, 0x00, 0x00, 0x05, 0x01, 0x1f, 0xe4, 0x00, +0x01, 0x00 }; +static const u_int8_t msc_rlsd_patched[] = { +0x00, 0x0a, 0xfd, +0x04, 0x00, 0x00, 0x15, 0x01, 0x1f, 0xe4, 0x00, +0x01, 0x00 }; + +/* RLC, BSC -> MSC */ +static const u_int8_t bsc_rlc[] = { +0x00, 0x07, 0xfd, +0x05, 0x01, 0x1f, 0xe4, 0x00, 0x00, 0x15 }; + +static const u_int8_t bsc_rlc_patched[] = { +0x00, 0x07, 0xfd, +0x05, 0x01, 0x1f, 0xe4, 0x00, 0x00, 0x05 }; + + +/* a paging command */ +static const u_int8_t paging_by_lac_cmd[] = { +0x00, 0x22, 0xfd, 0x09, +0x00, 0x03, 0x07, 0x0b, 0x04, 0x43, 0x02, 0x00, +0xfe, 0x04, 0x43, 0x5c, 0x00, 0xfe, 0x12, 0x00, +0x10, 0x52, 0x08, 0x08, 0x29, 0x47, 0x10, 0x02, +0x01, 0x50, 0x02, 0x30, 0x1a, 0x03, 0x05, 0x20, +0x15 }; + +/* an assignment command */ +static const u_int8_t ass_cmd[] = { +0x00, 0x12, 0xfd, 0x06, +0x00, 0x00, 0x49, 0x00, 0x01, 0x0b, 0x00, 0x09, +0x01, 0x0b, 0x03, 0x01, 0x0a, 0x11, 0x01, 0x00, +0x15 }; + +/* + * MGCP messages + */ + +/* nothing to patch */ +static const char crcx[] = "CRCX 23265295 8@mgw MGCP 1.0\r\nC: 394b0439fb\r\nL: p:20, a:AMR, nt:IN\r\nM: recvonly\r\n"; +static const char crcx_patched[] = "CRCX 23265295 8@mgw MGCP 1.0\r\nC: 394b0439fb\r\nL: p:20, a:AMR, nt:IN\r\nM: recvonly\r\n"; + + +/* patch the ip and port */ +static const char crcx_resp[] = "200 23265295\r\nI: 1\r\n\r\nv=0\r\nc=IN IP4 172.16.18.2\r\nm=audio 4002 RTP/AVP 98\r\na=rtpmap:98 AMR/8000\r\n"; +static const char crcx_resp_patched[] = "200 23265295\r\nI: 1\r\n\r\nv=0\r\nc=IN IP4 10.0.0.1\r\nm=audio 999 RTP/AVP 98\r\na=rtpmap:98 AMR/8000\r\n"; + +/* patch the ip and port */ +static const char mdcx[] = " MDCX 23330829 8@mgw MGCP 1.0\r\nC: 394b0439fb\r\nI: 1\r\nL: p:20, a:AMR, nt:IN\r\nM: recvonly\r\n\r\nv=0\r\no=- 1049380491 0 IN IP4 172.16.18.2\r\ns=-\r\nc=IN IP4 172.16.18.2\r\nt=0 0\r\nm=audio 4410 RTP/AVP 126\r\na=rtpmap:126 AMR/8000/1\r\na=fmtp:126 mode-set=2;start-mode=0\r\na=ptime:20\r\na=recvonly\r\nm=image 4412 udptl t38\r\na=T38FaxVersion:0\r\na=T38MaxBitRate:14400\r\n"; +static const char mdcx_patched[] = " MDCX 23330829 8@mgw MGCP 1.0\r\nC: 394b0439fb\r\nI: 1\r\nL: p:20, a:AMR, nt:IN\r\nM: recvonly\r\n\r\nv=0\r\no=- 1049380491 0 IN IP4 172.16.18.2\r\ns=-\r\nc=IN IP4 10.0.0.23\r\nt=0 0\r\nm=audio 6666 RTP/AVP 126\r\na=rtpmap:126 AMR/8000/1\r\na=fmtp:126 mode-set=2;start-mode=0\r\na=ptime:20\r\na=recvonly\r\nm=image 4412 udptl t38\r\na=T38FaxVersion:0\r\na=T38MaxBitRate:14400\r\n"; + + +static const char mdcx_resp[] = "200 23330829\r\n\r\nv=0\r\nc=IN IP4 172.16.18.2\r\nm=audio 4002 RTP/AVP 98\r\na=rtpmap:98 AMR/8000\r\n"; +static const char mdcx_resp_patched[] = "200 23330829\r\n\r\nv=0\r\nc=IN IP4 10.0.0.23\r\nm=audio 5555 RTP/AVP 98\r\na=rtpmap:98 AMR/8000\r\n"; + +/* different line ending */ +static const char mdcx_resp2[] = "200 33330829\n\nv=0\nc=IN IP4 172.16.18.2\nm=audio 4002 RTP/AVP 98\na=rtpmap:98 AMR/8000\n"; +static const char mdcx_resp_patched2[] = "200 33330829\n\nv=0\nc=IN IP4 10.0.0.23\nm=audio 5555 RTP/AVP 98\na=rtpmap:98 AMR/8000\n"; + +struct mgcp_patch_test { + const char *orig; + const char *patch; + const char *ip; + const int port; +}; + +static const struct mgcp_patch_test mgcp_messages[] = { + { + .orig = crcx, + .patch = crcx_patched, + .ip = "0.0.0.0", + .port = 2323, + }, + { + .orig = crcx_resp, + .patch = crcx_resp_patched, + .ip = "10.0.0.1", + .port = 999, + }, + { + .orig = mdcx, + .patch = mdcx_patched, + .ip = "10.0.0.23", + .port = 6666, + }, + { + .orig = mdcx_resp, + .patch = mdcx_resp_patched, + .ip = "10.0.0.23", + .port = 5555, + }, + { + .orig = mdcx_resp2, + .patch = mdcx_resp_patched2, + .ip = "10.0.0.23", + .port = 5555, + }, +}; diff --git a/openbsc/tests/bsc-nat/bsc_nat_test.c b/openbsc/tests/bsc-nat/bsc_nat_test.c new file mode 100644 index 000000000..1712ff6f0 --- /dev/null +++ b/openbsc/tests/bsc-nat/bsc_nat_test.c @@ -0,0 +1,541 @@ +/* + * BSC NAT Message filtering + * + * (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org> + * (C) 2010 by On-Waves + * + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + + +#include <openbsc/debug.h> +#include <openbsc/gsm_data.h> +#include <openbsc/bsc_nat.h> + +#include <osmocore/talloc.h> + +#include <stdio.h> + +/* test messages for ipa */ +static u_int8_t ipa_id[] = { + 0x00, 0x01, 0xfe, 0x06, +}; + +/* SCCP messages are below */ +static u_int8_t gsm_reset[] = { + 0x00, 0x12, 0xfd, + 0x09, 0x00, 0x03, 0x05, 0x07, 0x02, 0x42, 0xfe, + 0x02, 0x42, 0xfe, 0x06, 0x00, 0x04, 0x30, 0x04, + 0x01, 0x20, +}; + +static const u_int8_t gsm_reset_ack[] = { + 0x00, 0x13, 0xfd, + 0x09, 0x00, 0x03, 0x07, 0x0b, 0x04, 0x43, 0x01, + 0x00, 0xfe, 0x04, 0x43, 0x5c, 0x00, 0xfe, 0x03, + 0x00, 0x01, 0x31, +}; + +static const u_int8_t gsm_paging[] = { + 0x00, 0x20, 0xfd, + 0x09, 0x00, 0x03, 0x07, 0x0b, 0x04, 0x43, 0x01, + 0x00, 0xfe, 0x04, 0x43, 0x5c, 0x00, 0xfe, 0x10, + 0x00, 0x0e, 0x52, 0x08, 0x08, 0x29, 0x47, 0x10, + 0x02, 0x01, 0x31, 0x97, 0x61, 0x1a, 0x01, 0x06, +}; + +/* BSC -> MSC connection open */ +static const u_int8_t bssmap_cr[] = { + 0x00, 0x2c, 0xfd, + 0x01, 0x01, 0x02, 0x03, 0x02, 0x02, 0x04, 0x02, + 0x42, 0xfe, 0x0f, 0x1f, 0x00, 0x1d, 0x57, 0x05, + 0x08, 0x00, 0x72, 0xf4, 0x80, 0x20, 0x12, 0xc3, + 0x50, 0x17, 0x10, 0x05, 0x24, 0x11, 0x03, 0x33, + 0x19, 0xa2, 0x08, 0x29, 0x47, 0x10, 0x02, 0x01, + 0x31, 0x97, 0x61, 0x00 +}; + +/* MSC -> BSC connection confirm */ +static const u_int8_t bssmap_cc[] = { + 0x00, 0x0a, 0xfd, + 0x02, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00, +}; + +/* MSC -> BSC released */ +static const u_int8_t bssmap_released[] = { + 0x00, 0x0e, 0xfd, + 0x04, 0x00, 0x00, 0x03, 0x01, 0x02, 0x03, 0x00, 0x01, 0x0f, + 0x02, 0x23, 0x42, 0x00, +}; + +/* BSC -> MSC released */ +static const u_int8_t bssmap_release_complete[] = { + 0x00, 0x07, 0xfd, + 0x05, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03 +}; + +/* both directions IT timer */ +static const u_int8_t connnection_it[] = { + 0x00, 0x0b, 0xfd, + 0x10, 0x01, 0x02, 0x03, 0x01, 0x02, 0x03, + 0x00, 0x00, 0x00, 0x00, +}; + +/* MGCP wrap... */ +static const u_int8_t mgcp_msg[] = { + 0x00, 0x03, 0xfc, + 0x20, 0x20, 0x20, +}; + +struct filter_result { + const u_int8_t *data; + const u_int16_t length; + const int dir; + const int result; +}; + +static const struct filter_result results[] = { + { + .data = ipa_id, + .length = ARRAY_SIZE(ipa_id), + .dir = DIR_MSC, + .result = 1, + }, + { + .data = gsm_reset, + .length = ARRAY_SIZE(gsm_reset), + .dir = DIR_MSC, + .result = 1, + }, + { + .data = gsm_reset_ack, + .length = ARRAY_SIZE(gsm_reset_ack), + .dir = DIR_BSC, + .result = 1, + }, + { + .data = gsm_paging, + .length = ARRAY_SIZE(gsm_paging), + .dir = DIR_BSC, + .result = 0, + }, + { + .data = bssmap_cr, + .length = ARRAY_SIZE(bssmap_cr), + .dir = DIR_MSC, + .result = 0, + }, + { + .data = bssmap_cc, + .length = ARRAY_SIZE(bssmap_cc), + .dir = DIR_BSC, + .result = 0, + }, + { + .data = bssmap_released, + .length = ARRAY_SIZE(bssmap_released), + .dir = DIR_MSC, + .result = 0, + }, + { + .data = bssmap_release_complete, + .length = ARRAY_SIZE(bssmap_release_complete), + .dir = DIR_BSC, + .result = 0, + }, + { + .data = mgcp_msg, + .length = ARRAY_SIZE(mgcp_msg), + .dir = DIR_MSC, + .result = 0, + }, + { + .data = connnection_it, + .length = ARRAY_SIZE(connnection_it), + .dir = DIR_BSC, + .result = 0, + }, + { + .data = connnection_it, + .length = ARRAY_SIZE(connnection_it), + .dir = DIR_MSC, + .result = 0, + }, +}; + +static void test_filter(void) +{ + int i; + + + /* start testinh with proper messages */ + fprintf(stderr, "Testing BSS Filtering.\n"); + for (i = 0; i < ARRAY_SIZE(results); ++i) { + int result; + struct bsc_nat_parsed *parsed; + struct msgb *msg = msgb_alloc(4096, "test-message"); + + fprintf(stderr, "Going to test item: %d\n", i); + memcpy(msg->data, results[i].data, results[i].length); + msg->l2h = msgb_put(msg, results[i].length); + + parsed = bsc_nat_parse(msg); + if (!parsed) { + fprintf(stderr, "FAIL: Failed to parse the message\n"); + continue; + } + + result = bsc_nat_filter_ipa(results[i].dir, msg, parsed); + if (result != results[i].result) { + fprintf(stderr, "FAIL: Not the expected result got: %d wanted: %d\n", + result, results[i].result); + } + + msgb_free(msg); + } +} + +#include "bsc_data.c" + +static void copy_to_msg(struct msgb *msg, const u_int8_t *data, unsigned int length) +{ + msgb_reset(msg); + msg->l2h = msgb_put(msg, length); + memcpy(msg->l2h, data, msgb_l2len(msg)); +} + +#define VERIFY(con_found, con, msg, ver, str) \ + if (!con_found || con_found->bsc != con) { \ + fprintf(stderr, "Failed to find the con: %p\n", con_found); \ + abort(); \ + } \ + if (memcmp(msg->data, ver, sizeof(ver)) != 0) { \ + fprintf(stderr, "Failed to patch the %s msg.\n", str); \ + abort(); \ + } + +/* test conn tracking once */ +static void test_contrack() +{ + int rc; + struct bsc_nat *nat; + struct bsc_connection *con; + struct sccp_connections *con_found; + struct bsc_nat_parsed *parsed; + struct msgb *msg; + + fprintf(stderr, "Testing connection tracking.\n"); + nat = bsc_nat_alloc(); + con = bsc_connection_alloc(nat); + con->cfg = bsc_config_alloc(nat, "foo", 23); + msg = msgb_alloc(4096, "test"); + + /* 1.) create a connection */ + copy_to_msg(msg, bsc_cr, sizeof(bsc_cr)); + parsed = bsc_nat_parse(msg); + con_found = patch_sccp_src_ref_to_msc(msg, parsed, nat); + if (con_found != NULL) { + fprintf(stderr, "Con should not exist %p\n", con_found); + abort(); + } + rc = create_sccp_src_ref(con, msg, parsed); + if (rc != 0) { + fprintf(stderr, "Failed to create a ref\n"); + abort(); + } + con_found = patch_sccp_src_ref_to_msc(msg, parsed, nat); + if (!con_found || con_found->bsc != con) { + fprintf(stderr, "Failed to find the con: %p\n", con_found); + abort(); + } + if (memcmp(msg->data, bsc_cr_patched, sizeof(bsc_cr_patched)) != 0) { + fprintf(stderr, "Failed to patch the BSC CR msg.\n"); + abort(); + } + talloc_free(parsed); + + /* 2.) get the cc */ + copy_to_msg(msg, msc_cc, sizeof(msc_cc)); + parsed = bsc_nat_parse(msg); + con_found = patch_sccp_src_ref_to_bsc(msg, parsed, nat); + VERIFY(con_found, con, msg, msc_cc_patched, "MSC CC"); + if (update_sccp_src_ref(con_found, parsed) != 0) { + fprintf(stderr, "Failed to update the SCCP con.\n"); + abort(); + } + + /* 3.) send some data */ + copy_to_msg(msg, bsc_dtap, sizeof(bsc_dtap)); + parsed = bsc_nat_parse(msg); + con_found = patch_sccp_src_ref_to_msc(msg, parsed, nat); + VERIFY(con_found, con, msg, bsc_dtap_patched, "BSC DTAP"); + + /* 4.) receive some data */ + copy_to_msg(msg, msc_dtap, sizeof(msc_dtap)); + parsed = bsc_nat_parse(msg); + con_found = patch_sccp_src_ref_to_bsc(msg, parsed, nat); + VERIFY(con_found, con, msg, msc_dtap_patched, "MSC DTAP"); + + /* 5.) close the connection */ + copy_to_msg(msg, msc_rlsd, sizeof(msc_rlsd)); + parsed = bsc_nat_parse(msg); + con_found = patch_sccp_src_ref_to_bsc(msg, parsed, nat); + VERIFY(con_found, con, msg, msc_rlsd_patched, "MSC RLSD"); + + /* 6.) confirm the connection close */ + copy_to_msg(msg, bsc_rlc, sizeof(bsc_rlc)); + parsed = bsc_nat_parse(msg); + con_found = patch_sccp_src_ref_to_msc(msg, parsed, nat); + if (!con_found || con_found->bsc != con) { + fprintf(stderr, "Failed to find the con: %p\n", con_found); + abort(); + } + if (memcmp(msg->data, bsc_rlc_patched, sizeof(bsc_rlc_patched)) != 0) { + fprintf(stderr, "Failed to patch the BSC CR msg.\n"); + abort(); + } + remove_sccp_src_ref(con, msg, parsed); + talloc_free(parsed); + + copy_to_msg(msg, bsc_rlc, sizeof(bsc_rlc)); + parsed = bsc_nat_parse(msg); + con_found = patch_sccp_src_ref_to_msc(msg, parsed, nat); + + /* verify that it is gone */ + if (con_found != NULL) { + fprintf(stderr, "Con should be gone. %p\n", con_found); + abort(); + } + talloc_free(parsed); + + + talloc_free(nat); + msgb_free(msg); +} + +static void test_paging(void) +{ + int lac; + struct bsc_nat *nat; + struct bsc_connection *con; + struct bsc_nat_parsed *parsed; + struct bsc_config cfg; + struct msgb *msg; + + fprintf(stderr, "Testing paging by lac.\n"); + + nat = bsc_nat_alloc(); + con = bsc_connection_alloc(nat); + con->cfg = &cfg; + cfg.lac = 23; + con->authenticated = 1; + llist_add(&con->list_entry, &nat->bsc_connections); + msg = msgb_alloc(4096, "test"); + + /* Test completely bad input */ + copy_to_msg(msg, paging_by_lac_cmd, sizeof(paging_by_lac_cmd)); + if (bsc_nat_find_bsc(nat, msg, &lac) != 0) { + fprintf(stderr, "Should have not found anything.\n"); + abort(); + } + + /* Test it by not finding it */ + copy_to_msg(msg, paging_by_lac_cmd, sizeof(paging_by_lac_cmd)); + parsed = bsc_nat_parse(msg); + if (bsc_nat_find_bsc(nat, msg, &lac) != 0) { + fprintf(stderr, "Should have not found aynthing.\n"); + abort(); + } + talloc_free(parsed); + + /* Test by finding it */ + cfg.lac = 8213; + copy_to_msg(msg, paging_by_lac_cmd, sizeof(paging_by_lac_cmd)); + parsed = bsc_nat_parse(msg); + if (bsc_nat_find_bsc(nat, msg, &lac) != con) { + fprintf(stderr, "Should have found it.\n"); + abort(); + } + talloc_free(parsed); +} + +static void test_mgcp_ass_tracking(void) +{ + struct sccp_connections con; + struct bsc_nat_parsed *parsed; + struct msgb *msg; + + fprintf(stderr, "Testing MGCP.\n"); + memset(&con, 0, sizeof(con)); + + msg = msgb_alloc(4096, "foo"); + copy_to_msg(msg, ass_cmd, sizeof(ass_cmd)); + parsed = bsc_nat_parse(msg); + if (bsc_mgcp_assign(&con, msg) != 0) { + fprintf(stderr, "Failed to handle assignment.\n"); + abort(); + } + + if (con.msc_timeslot != 21) { + fprintf(stderr, "Timeslot should be 21.\n"); + abort(); + } + + if (con.bsc_timeslot != 21) { + fprintf(stderr, "Assigned timeslot should have been 21.\n"); + abort(); + } + talloc_free(parsed); + + bsc_mgcp_clear(&con); + if (con.bsc_timeslot != -1 || con.msc_timeslot != -1) { + fprintf(stderr, "Clearing should remove the mapping.\n"); + abort(); + } +} + +/* test the code to find a given connection */ +static void test_mgcp_find(void) +{ + struct bsc_nat *nat; + struct bsc_connection *con; + struct sccp_connections *sccp_con; + + fprintf(stderr, "Testing finding of a BSC Connection\n"); + + nat = bsc_nat_alloc(); + con = bsc_connection_alloc(nat); + llist_add(&con->list_entry, &nat->bsc_connections); + + sccp_con = talloc_zero(con, struct sccp_connections); + sccp_con->msc_timeslot = 12; + sccp_con->bsc_timeslot = 12; + sccp_con->bsc = con; + llist_add(&sccp_con->list_entry, &nat->sccp_connections); + + if (bsc_mgcp_find_con(nat, 11) != NULL) { + fprintf(stderr, "Found the wrong connection.\n"); + abort(); + } + + if (bsc_mgcp_find_con(nat, 12) != sccp_con) { + fprintf(stderr, "Didn't find the connection\n"); + abort(); + } + + sccp_con->msc_timeslot = 0; + sccp_con->bsc_timeslot = 0; + if (bsc_mgcp_find_con(nat, 1) != sccp_con) { + fprintf(stderr, "Didn't find the connection\n"); + abort(); + } + + /* free everything */ + talloc_free(nat); +} + +static void test_mgcp_rewrite(void) +{ + int i; + struct msgb *output; + fprintf(stderr, "Test rewriting MGCP messages.\n"); + + for (i = 0; i < ARRAY_SIZE(mgcp_messages); ++i) { + const char *orig = mgcp_messages[i].orig; + const char *patc = mgcp_messages[i].patch; + const char *ip = mgcp_messages[i].ip; + const int port = mgcp_messages[i].port; + + char *input = strdup(orig); + + output = bsc_mgcp_rewrite(input, strlen(input), ip, port); + if (msgb_l2len(output) != strlen(patc)) { + fprintf(stderr, "Wrong sizes for test: %d %d != %d != %d\n", i, msgb_l2len(output), strlen(patc), strlen(orig)); + fprintf(stderr, "String '%s' vs '%s'\n", (const char *) output->l2h, patc); + abort(); + } + + if (memcmp(output->l2h, patc, msgb_l2len(output)) != 0) { + fprintf(stderr, "Broken on %d msg: '%s'\n", i, (const char *) output->l2h); + abort(); + } + + msgb_free(output); + free(input); + } +} + +static void test_mgcp_parse(void) +{ + int code, ci; + char transaction[60]; + + fprintf(stderr, "Test MGCP response parsing.\n"); + + if (bsc_mgcp_parse_response(crcx_resp, &code, transaction) != 0) { + fprintf(stderr, "Failed to parse CRCX resp.\n"); + abort(); + } + + if (code != 200) { + fprintf(stderr, "Failed to parse the CODE properly. Got: %d\n", code); + abort(); + } + + if (strcmp(transaction, "23265295") != 0) { + fprintf(stderr, "Failed to parse transaction id: '%s'\n", transaction); + abort(); + } + + ci = bsc_mgcp_extract_ci(crcx_resp); + if (ci != 1) { + fprintf(stderr, "Failed to parse the CI. Got: %d\n", ci); + abort(); + } +} + +int main(int argc, char **argv) +{ + struct log_target *stderr_target; + + log_init(&log_info); + stderr_target = log_target_create_stderr(); + log_add_target(stderr_target); + log_set_all_filter(stderr_target, 1); + + test_filter(); + test_contrack(); + test_paging(); + test_mgcp_ass_tracking(); + test_mgcp_find(); + test_mgcp_rewrite(); + test_mgcp_parse(); + return 0; +} + +void input_event() +{} +int nm_state_event() +{ + return -1; +} + +int gsm0408_rcvmsg(struct msgb *msg, u_int8_t link_id) +{ + return -1; +} |