diff options
Diffstat (limited to 'tests/bsc-nat')
-rw-r--r-- | tests/bsc-nat/Makefile.am | 59 | ||||
-rw-r--r-- | tests/bsc-nat/barr.cfg | 12 | ||||
-rw-r--r-- | tests/bsc-nat/barr_dup.cfg | 2 | ||||
-rw-r--r-- | tests/bsc-nat/bsc_data.c | 275 | ||||
-rw-r--r-- | tests/bsc-nat/bsc_nat_test.c | 1584 | ||||
-rw-r--r-- | tests/bsc-nat/bsc_nat_test.ok | 39 | ||||
-rw-r--r-- | tests/bsc-nat/prefixes.csv | 2 |
7 files changed, 1973 insertions, 0 deletions
diff --git a/tests/bsc-nat/Makefile.am b/tests/bsc-nat/Makefile.am new file mode 100644 index 000000000..40be3a32f --- /dev/null +++ b/tests/bsc-nat/Makefile.am @@ -0,0 +1,59 @@ +AM_CPPFLAGS = \ + $(all_includes) \ + -I$(top_srcdir)/include \ + $(NULL) + +AM_CFLAGS = \ + -Wall \ + -ggdb3 \ + $(LIBOSMOCORE_CFLAGS) \ + $(LIBOSMOGSM_CFLAGS) \ + $(LIBOSMOCTRL_LIBS) \ + $(LIBOSMOSCCP_CFLAGS) \ + $(LIBOSMOABIS_CFLAGS) \ + $(LIBOSMONETIF_CFLAGS) \ + $(COVERAGE_CFLAGS) \ + $(NULL) + +AM_LDFLAGS = \ + $(COVERAGE_LDFLAGS) \ + $(NULL) + +EXTRA_DIST = \ + bsc_nat_test.ok \ + bsc_data.c \ + barr.cfg \ + barr_dup.cfg \ + prefixes.csv \ + $(NULL) + +noinst_PROGRAMS = \ + bsc_nat_test \ + $(NULL) + +bsc_nat_test_SOURCES = \ + bsc_nat_test.c \ + $(top_srcdir)/src/osmo-bsc_nat/bsc_filter.c \ + $(top_srcdir)/src/osmo-bsc_nat/bsc_sccp.c \ + $(top_srcdir)/src/osmo-bsc_nat/bsc_nat_utils.c \ + $(top_srcdir)/src/osmo-bsc_nat/bsc_nat_rewrite.c \ + $(top_srcdir)/src/osmo-bsc_nat/bsc_nat_rewrite_trie.c \ + $(top_srcdir)/src/osmo-bsc_nat/bsc_mgcp_utils.c \ + $(top_srcdir)/src/osmo-bsc_nat/bsc_nat_filter.c + +bsc_nat_test_LDADD = \ + $(top_builddir)/src/libfilter/libfilter.a \ + $(top_builddir)/src/libbsc/libbsc.a \ + $(top_builddir)/src/libcommon-cs/libcommon-cs.a \ + $(top_builddir)/src/libmgcp/libmgcp.a \ + $(top_builddir)/src/libtrau/libtrau.a \ + $(top_builddir)/src/libcommon/libcommon.a \ + $(LIBOSMOCORE_LIBS) \ + $(LIBOSMOGSM_LIBS) \ + $(LIBOSMOSCCP_LIBS) \ + $(LIBOSMOVTY_LIBS) \ + $(LIBOSMOABIS_LIBS) \ + $(LIBOSMONETIF_LIBS) \ + $(LIBOSMOCTRL_LIBS) \ + -lrt \ + $(NULL) diff --git a/tests/bsc-nat/barr.cfg b/tests/bsc-nat/barr.cfg new file mode 100644 index 000000000..a9a4a2b31 --- /dev/null +++ b/tests/bsc-nat/barr.cfg @@ -0,0 +1,12 @@ +12123124:3:2: +12123123:3:1: +12123128:3:6: +12123125:3:3: +12123127:3:5: +12123126:3:4: +12123120:3:4: +12123119:3:4: +12123118:3:4: +12123117:3:4: +12123116:3:4: +12123115:3:4: diff --git a/tests/bsc-nat/barr_dup.cfg b/tests/bsc-nat/barr_dup.cfg new file mode 100644 index 000000000..ea94631ce --- /dev/null +++ b/tests/bsc-nat/barr_dup.cfg @@ -0,0 +1,2 @@ +12123124:3:2: +12123124:3:2: diff --git a/tests/bsc-nat/bsc_data.c b/tests/bsc-nat/bsc_data.c new file mode 100644 index 000000000..3a9f1da62 --- /dev/null +++ b/tests/bsc-nat/bsc_data.c @@ -0,0 +1,275 @@ +/* test data */ + +/* BSC -> MSC, CR */ +static const uint8_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 uint8_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 uint8_t msc_cc[] = { +0x00, 0x0a, 0xfd, +0x02, 0x00, 0x00, 0x05, 0x01, 0x1f, 0xe4, 0x02, +0x01, 0x00 }; +static const uint8_t msc_cc_patched[] = { +0x00, 0x0a, 0xfd, +0x02, 0x00, 0x00, 0x15, 0x01, 0x1f, 0xe4, 0x02, +0x01, 0x00 }; + +/* Classmark, BSC -> MSC */ +static const uint8_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 uint8_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 uint8_t msc_dtap[] = { +0x00, 0x0d, 0xfd, +0x06, 0x00, 0x00, 0x05, 0x00, 0x01, 0x06, 0x00, +0x04, 0x20, 0x04, 0x01, 0x09 }; +static const uint8_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 uint8_t msc_rlsd[] = { +0x00, 0x0a, 0xfd, +0x04, 0x00, 0x00, 0x05, 0x01, 0x1f, 0xe4, 0x00, +0x01, 0x00 }; +static const uint8_t msc_rlsd_patched[] = { +0x00, 0x0a, 0xfd, +0x04, 0x00, 0x00, 0x15, 0x01, 0x1f, 0xe4, 0x00, +0x01, 0x00 }; + +/* RLC, BSC -> MSC */ +static const uint8_t bsc_rlc[] = { +0x00, 0x07, 0xfd, +0x05, 0x01, 0x1f, 0xe4, 0x00, 0x00, 0x15 }; + +static const uint8_t bsc_rlc_patched[] = { +0x00, 0x07, 0xfd, +0x05, 0x01, 0x1f, 0xe4, 0x00, 0x00, 0x05 }; + + +/* a paging command */ +static const uint8_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 uint8_t ass_cmd[] = { +0x00, 0x12, 0xfd, 0x06, +0x00, 0x00, 0x49, 0x00, 0x01, 0x0b, 0x00, 0x09, +0x01, 0x0b, 0x03, 0x01, 0x0a, 0x11, 0x01, 0x00, +0x01 }; + +/* identity response */ +static const uint8_t id_resp[] = { +0x00, 0x15, 0xfd, 0x06, 0x01, 0x1c, 0xdc, +0x00, 0x01, 0x0e, 0x01, 0x00, 0x0b, 0x05, 0x59, +0x08, 0x29, 0x40, 0x21, 0x03, 0x07, 0x48, 0x66, +0x31 +}; + +/* sms code msg */ +static const uint8_t smsc_rewrite[] = { +0x00, 0x30, 0xfd, 0x06, 0x01, 0x13, 0x1e, 0x00, +0x01, 0x29, 0x01, 0x03, 0x26, 0x09, 0x01, 0x23, +0x00, 0x0c, 0x00, 0x07, 0x91, 0x36, 0x19, 0x08, +0x00, 0x10, 0x50, 0x17, 0x21, 0x0c, 0x0f, 0x81, +0x00, 0x94, 0x51, 0x87, 0x86, 0x78, 0x46, 0xf5, +0x00, 0x00, 0x09, 0xcc, 0xb7, 0xbd, 0x0c, 0xca, +0xbf, 0xeb, 0x20 +}; + +static const uint8_t smsc_rewrite_patched[] = { +0x00, 0x31, 0xfd, 0x06, 0x01, 0x13, 0x1e, 0x00, +0x01, 0x2a, 0x01, 0x03, 0x27, 0x09, 0x01, 0x24, +0x00, 0x0c, 0x00, 0x08, 0x91, 0x66, 0x66, 0x66, +0x66, 0x66, 0x66, 0xf7, 0x17, 0x01, 0x0c, 0x0f, +0x81, 0x00, 0x94, 0x51, 0x87, 0x86, 0x78, 0x46, +0xf5, 0x00, 0x00, 0x09, 0xcc, 0xb7, 0xbd, 0x0c, +0xca, 0xbf, 0xeb, 0x20 +}; + +static const uint8_t smsc_rewrite_patched_hdr[] = { +0x00, 0x30, 0xfd, 0x06, 0x01, 0x13, 0x1e, 0x00, +0x01, 0x29, 0x01, 0x03, 0x26, 0x09, 0x01, 0x23, +0x00, 0x0c, 0x00, 0x07, 0x91, 0x36, 0x19, 0x08, +0x00, 0x10, 0x50, 0x17, 0x01, 0x0c, 0x0f, 0x81, +0x00, 0x94, 0x51, 0x87, 0x86, 0x78, 0x46, 0xf5, +0x00, 0x00, 0x09, 0xcc, 0xb7, 0xbd, 0x0c, 0xca, +0xbf, 0xeb, 0x20 +}; + +static const uint8_t smsc_rewrite_num_patched[] = { +0x00, 0x2f, 0xfd, 0x06, 0x01, 0x13, 0x1e, 0x00, +0x01, 0x28, 0x01, 0x03, 0x25, 0x09, 0x01, 0x22, +0x00, 0x0c, 0x00, 0x07, 0x91, 0x36, 0x19, 0x08, +0x00, 0x10, 0x50, 0x16, 0x21, 0x0c, 0x0d, 0x91, + 0x23, 0x51, 0x87, 0x86, 0x78, 0x46, 0xf5, +0x00, 0x00, 0x09, 0xcc, 0xb7, 0xbd, 0x0c, 0xca, +0xbf, 0xeb, 0x20 +}; + +static const uint8_t smsc_rewrite_num_patched_tp_srr[] = { +0x00, 0x2f, 0xfd, 0x06, 0x01, 0x13, 0x1e, 0x00, +0x01, 0x28, 0x01, 0x03, 0x25, 0x09, 0x01, 0x22, +0x00, 0x0c, 0x00, 0x07, 0x91, 0x36, 0x19, 0x08, +0x00, 0x10, 0x50, 0x16, 0x01, 0x0c, 0x0d, 0x91, + 0x23, 0x51, 0x87, 0x86, 0x78, 0x46, 0xf5, +0x00, 0x00, 0x09, 0xcc, 0xb7, 0xbd, 0x0c, 0xca, +0xbf, 0xeb, 0x20 +}; + +/* + * 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 1e@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 3\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 3\r\na=rtpmap:98 AMR/8000\r\na=fmtp:98 mode-set=2\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 1e@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\na=fmtp:98 mode-set=2\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\na=fmtp:98 mode-set=2\n"; +static const char mdcx_resp_patched2_noamr[] = "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; + const int payload_type; + const int ensure_mode_set; +}; + +static const struct mgcp_patch_test mgcp_messages[] = { + { + .orig = crcx, + .patch = crcx_patched, + .ip = "0.0.0.0", + .port = 2323, + .ensure_mode_set = 1, + }, + { + .orig = crcx_resp, + .patch = crcx_resp_patched, + .ip = "10.0.0.1", + .port = 999, + .payload_type = 98, + .ensure_mode_set = 1, + }, + { + .orig = mdcx, + .patch = mdcx_patched, + .ip = "10.0.0.23", + .port = 6666, + .payload_type = 126, + .ensure_mode_set = 1, + }, + { + .orig = mdcx_resp, + .patch = mdcx_resp_patched, + .ip = "10.0.0.23", + .port = 5555, + .payload_type = 98, + .ensure_mode_set = 1, + }, + { + .orig = mdcx_resp2, + .patch = mdcx_resp_patched2, + .ip = "10.0.0.23", + .port = 5555, + .payload_type = 98, + .ensure_mode_set = 1, + }, + { + .orig = mdcx_resp2, + .patch = mdcx_resp_patched2_noamr, + .ip = "10.0.0.23", + .port = 5555, + .payload_type = 98, + .ensure_mode_set = 0, + }, +}; + +/* CC Setup messages */ +static const uint8_t cc_setup_national[] = { + 0x00, 0x20, 0xfd, 0x06, 0x01, 0x12, + 0x6d, 0x00, 0x01, 0x19, 0x01, 0x00, 0x16, 0x03, + 0x05, 0x04, 0x06, 0x60, 0x04, 0x02, 0x00, 0x05, + 0x81, 0x5e, 0x06, 0x81, 0x10, 0x27, 0x33, 0x63, + 0x66, 0x15, 0x02, 0x11, 0x01 +}; + +static const uint8_t cc_setup_national_patched[] = { + 0x00, 0x21, 0xfd, 0x06, 0x01, 0x12, + 0x6d, 0x00, 0x01, 0x1a, 0x01, 0x00, 0x17, 0x03, + 0x05, 0x04, 0x06, 0x60, 0x04, 0x02, 0x00, 0x05, + 0x81, 0x5e, 0x07, 0x91, 0x94, 0x71, 0x32, 0x33, + 0x66, 0xf6, 0x15, 0x02, 0x11, 0x01 +}; + +/* patch the phone number of cc_setup_national_patched */ +static const uint8_t cc_setup_national_patched_patched[] = { + 0x00, 0x21, 0xfd, 0x06, 0x01, 0x12, + 0x6d, 0x00, 0x01, 0x1a, 0x01, 0x00, 0x17, 0x03, + 0x05, 0x04, 0x06, 0x60, 0x04, 0x02, 0x00, 0x05, + 0x81, 0x5e, 0x07, 0x91, 0x63, 0x71, 0x32, 0x33, + 0x66, 0xf6, 0x15, 0x02, 0x11, 0x01 +}; + +static const uint8_t cc_setup_international[] = { + 0x00, 0x22, 0xfd, 0x06, 0x01, 0x13, + 0xe7, 0x00, 0x01, 0x1b, 0x01, 0x00, 0x18, 0x03, + 0x45, 0x04, 0x06, 0x60, 0x04, 0x02, 0x00, 0x05, + 0x81, 0x5e, 0x08, 0x81, 0x00, 0x94, 0x71, 0x33, + 0x63, 0x66, 0x03, 0x15, 0x02, 0x11, 0x01 +}; + +static const uint8_t cc_setup_national_again[] = { + 0x00, 0x22, 0xfd, 0x06, 0x01, 0x12, 0x6d, 0x00, + 0x01, 0x1b, 0x01, 0x00, 0x18, 0x03, 0x05, 0x04, + 0x06, 0x60, 0x04, 0x02, 0x00, 0x05, 0x81, 0x5e, + 0x08, 0x81, 0x63, 0x94, 0x71, 0x32, 0x33, 0x66, + 0xf6, 0x15, 0x02, 0x11, 0x01 +}; diff --git a/tests/bsc-nat/bsc_nat_test.c b/tests/bsc-nat/bsc_nat_test.c new file mode 100644 index 000000000..2914a01b5 --- /dev/null +++ b/tests/bsc-nat/bsc_nat_test.c @@ -0,0 +1,1584 @@ +/* + * BSC NAT Message filtering + * + * (C) 2010-2013 by Holger Hans Peter Freyther <zecke@selfish.org> + * (C) 2010-2013 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 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 General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + + +#include <openbsc/debug.h> +#include <openbsc/gsm_data.h> +#include <openbsc/bsc_nat.h> +#include <openbsc/bsc_nat_sccp.h> +#include <openbsc/bsc_msg_filter.h> +#include <openbsc/nat_rewrite_trie.h> + +#include <osmocom/core/application.h> +#include <osmocom/core/backtrace.h> +#include <osmocom/core/talloc.h> + +#include <osmocom/sccp/sccp.h> +#include <osmocom/gsm/protocol/gsm_08_08.h> + +#include <stdio.h> + +/* test messages for ipa */ +static uint8_t ipa_id[] = { + 0x00, 0x01, 0xfe, 0x06, +}; + +/* SCCP messages are below */ +static uint8_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 uint8_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 uint8_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 uint8_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 uint8_t bssmap_cc[] = { + 0x00, 0x0a, 0xfd, + 0x02, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00, +}; + +/* MSC -> BSC released */ +static const uint8_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 uint8_t bssmap_release_complete[] = { + 0x00, 0x07, 0xfd, + 0x05, 0x01, 0x02, 0x03, 0x00, 0x00, 0x03 +}; + +/* both directions IT timer */ +static const uint8_t connnection_it[] = { + 0x00, 0x0b, 0xfd, + 0x10, 0x01, 0x02, 0x03, 0x01, 0x02, 0x03, + 0x00, 0x00, 0x00, 0x00, +}; + +/* error in both directions */ +static const uint8_t proto_error[] = { + 0x00, 0x05, 0xfd, + 0x0f, 0x22, 0x33, 0x44, 0x00, +}; + +/* MGCP wrap... */ +static const uint8_t mgcp_msg[] = { + 0x00, 0x03, 0xfc, + 0x20, 0x20, 0x20, +}; + +/* location updating request */ +static const uint8_t bss_lu[] = { + 0x00, 0x2e, 0xfd, + 0x01, 0x91, 0x45, 0x14, 0x02, 0x02, 0x04, 0x02, + 0x42, 0xfe, 0x0f, 0x21, 0x00, 0x1f, 0x57, 0x05, + 0x08, 0x00, 0x72, 0xf4, 0x80, 0x20, 0x14, 0xc3, + 0x50, 0x17, 0x12, 0x05, 0x08, 0x70, 0x72, 0xf4, + 0x80, 0xff, 0xfe, 0x30, 0x08, 0x29, 0x44, 0x50, + 0x12, 0x03, 0x24, 0x01, 0x95, 0x00 +}; + +/* paging response */ +static const uint8_t pag_resp[] = { + 0x00, 0x2c, 0xfd, 0x01, 0xe5, 0x68, + 0x14, 0x02, 0x02, 0x04, 0x02, 0x42, 0xfe, 0x0f, + 0x1f, 0x00, 0x1d, 0x57, 0x05, 0x08, 0x00, 0x72, + 0xf4, 0x80, 0x20, 0x16, 0xc3, 0x50, 0x17, 0x10, + 0x06, 0x27, 0x01, 0x03, 0x30, 0x18, 0x96, 0x08, + 0x29, 0x26, 0x30, 0x32, 0x11, 0x42, 0x01, 0x19, + 0x00 +}; + +struct filter_result { + const uint8_t *data; + const uint16_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, + }, + { + .data = proto_error, + .length = ARRAY_SIZE(proto_error), + .dir = DIR_BSC, + .result = 0, + }, + { + .data = proto_error, + .length = ARRAY_SIZE(proto_error), + .dir = DIR_MSC, + .result = 0, + }, + +}; + +static void test_filter(void) +{ + int i; + + + /* start testinh with proper messages */ + printf("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"); + + printf("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) { + printf("FAIL: Failed to parse the message\n"); + continue; + } + + result = bsc_nat_filter_ipa(results[i].dir, msg, parsed); + if (result != results[i].result) { + printf("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 uint8_t *data, unsigned int length) +{ + msgb_reset(msg); + msg->l2h = msgb_put(msg, length); + memcpy(msg->l2h, data, msgb_l2len(msg)); +} + +static void verify_msg(struct msgb *out, const uint8_t *ref, int ref_len) +{ + if (out->len != ref_len) { + printf("FAIL: The size should match: %d vs. %d\n", + out->len, ref_len); + printf("%s\n", osmo_hexdump(out->data, out->len)); + printf("Wanted\n"); + printf("%s\n", osmo_hexdump(ref, ref_len)); + abort(); + } + + if (memcmp(out->data, ref, out->len) != 0) { + printf("FAIL: the data should be changed.\n"); + printf("%s\n", osmo_hexdump(out->data, out->len)); + printf("Wanted\n"); + printf("%s\n", osmo_hexdump(ref, ref_len)); + abort(); + } +} + + +#define VERIFY(con_found, con, msg, ver, str) \ + if (!con_found) { \ + printf("Failed to find connection.\n"); \ + abort(); \ + } \ + if (con_found->bsc != con) { \ + printf("Got connection of the wrong BSC: %d\n", \ + con_found->bsc->cfg->nr); \ + abort(); \ + } \ + if (memcmp(msg->data, ver, sizeof(ver)) != 0) { \ + printf("Failed to patch the %s msg.\n", str); \ + abort(); \ + } + +/* test conn tracking once */ +static void test_contrack() +{ + struct bsc_nat *nat; + struct bsc_connection *con; + struct nat_sccp_connection *con_found; + struct nat_sccp_connection *rc_con; + struct bsc_nat_parsed *parsed; + struct msgb *msg; + + printf("Testing connection tracking.\n"); + nat = bsc_nat_alloc(); + con = bsc_connection_alloc(nat); + con->cfg = bsc_config_alloc(nat, "foo", 0); + bsc_config_add_lac(con->cfg, 23); + bsc_config_add_lac(con->cfg, 49); + bsc_config_add_lac(con->cfg, 42); + bsc_config_del_lac(con->cfg, 49); + bsc_config_add_lac(con->cfg, 1111); + 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, con); + if (con_found != NULL) { + printf("Con should not exist realref(%u)\n", + sccp_src_ref_to_int(&con_found->real_ref)); + abort(); + } + rc_con = create_sccp_src_ref(con, parsed); + if (!rc_con) { + printf("Failed to create a ref\n"); + abort(); + } + con_found = patch_sccp_src_ref_to_msc(msg, parsed, con); + if (!con_found) { + printf("Failed to find connection.\n"); + abort(); + } + if (con_found->bsc != con) { + printf("Got connection of the wrong BSC: %d\n", + con_found->bsc->cfg->nr); + abort(); + } + if (con_found != rc_con) { + printf("Failed to find the right connection.\n"); + abort(); + } + if (memcmp(msg->data, bsc_cr_patched, sizeof(bsc_cr_patched)) != 0) { + printf("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) { + printf("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, con); + 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, con); + if (!con_found) { + printf("Failed to find connection.\n"); + abort(); + } + if (con_found->bsc != con) { + printf("Got connection of the wrong BSC: %d\n", + con_found->bsc->cfg->nr); + abort(); + } + if (memcmp(msg->data, bsc_rlc_patched, sizeof(bsc_rlc_patched)) != 0) { + printf("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, con); + + /* verify that it is gone */ + if (con_found != NULL) { + printf("Con should not exist real_ref(%u)\n", + sccp_src_ref_to_int(&con_found->real_ref)); + abort(); + } + talloc_free(parsed); + + + bsc_config_free(con->cfg); + bsc_nat_free(nat); + msgb_free(msg); +} + +static void test_paging(void) +{ + struct bsc_nat *nat; + struct bsc_connection *con; + struct bsc_config *cfg; + + printf("Testing paging by lac.\n"); + + nat = bsc_nat_alloc(); + con = bsc_connection_alloc(nat); + cfg = bsc_config_alloc(nat, "unknown", 0); + con->cfg = cfg; + bsc_config_add_lac(cfg, 23); + con->authenticated = 1; + llist_add(&con->list_entry, &nat->bsc_connections); + + /* Test it by not finding it */ + if (bsc_config_handles_lac(cfg, 8213) != 0) { + printf("Should not be handled.\n"); + abort(); + } + + /* Test by finding it */ + bsc_config_del_lac(cfg, 23); + bsc_config_add_lac(cfg, 8213); + if (bsc_config_handles_lac(cfg, 8213) == 0) { + printf("Should have found it.\n"); + abort(); + } + + bsc_nat_free(nat); +} + +static void test_mgcp_allocations(void) +{ +#if 0 + struct bsc_connection *bsc; + struct bsc_nat *nat; + struct nat_sccp_connection con; + int i, j, multiplex; + + printf("Testing MGCP.\n"); + memset(&con, 0, sizeof(con)); + + nat = bsc_nat_alloc(); + nat->bsc_endpoints = talloc_zero_array(nat, + struct bsc_endpoint, + 65); + nat->mgcp_cfg = mgcp_config_alloc(); + nat->mgcp_cfg->trunk.number_endpoints = 64; + + bsc = bsc_connection_alloc(nat); + bsc->cfg = bsc_config_alloc(nat, "foo", 0); + bsc->cfg->max_endpoints = 60; + bsc_config_add_lac(bsc->cfg, 2323); + bsc->last_endpoint = 0x22; + con.bsc = bsc; + + bsc_init_endps_if_needed(bsc); + + i = 1; + do { + if (bsc_assign_endpoint(bsc, &con) != 0) { + printf("failed to allocate... on iteration %d\n", i); + break; + } + ++i; + } while(1); + + multiplex = bsc_mgcp_nr_multiplexes(bsc->cfg->max_endpoints); + for (i = 0; i < multiplex; ++i) { + for (j = 0; j < 32; ++j) + printf("%d", bsc->_endpoint_status[i*32 + j]); + printf(": %d of %d\n", i*32 + 32, 32 * 8); + } +#endif +} + +static void test_mgcp_ass_tracking(void) +{ + struct bsc_connection *bsc; + struct bsc_nat *nat; + struct nat_sccp_connection con; + struct bsc_nat_parsed *parsed; + struct msgb *msg; + + printf("Testing MGCP.\n"); + memset(&con, 0, sizeof(con)); + + nat = bsc_nat_alloc(); + nat->bsc_endpoints = talloc_zero_array(nat, + struct bsc_endpoint, + 33); + nat->mgcp_cfg = mgcp_config_alloc(); + nat->mgcp_cfg->trunk.number_endpoints = 64; + mgcp_endpoints_allocate(&nat->mgcp_cfg->trunk); + + bsc = bsc_connection_alloc(nat); + bsc->cfg = bsc_config_alloc(nat, "foo", 0); + bsc_config_add_lac(bsc->cfg, 2323); + bsc->last_endpoint = 0x1e; + con.bsc = bsc; + + msg = msgb_alloc(4096, "foo"); + copy_to_msg(msg, ass_cmd, sizeof(ass_cmd)); + parsed = bsc_nat_parse(msg); + + if (msg->l2h[16] != 0 || + msg->l2h[17] != 0x1) { + printf("Input is not as expected.. %s 0x%x\n", + osmo_hexdump(msg->l2h, msgb_l2len(msg)), + msg->l2h[17]); + abort(); + } + + if (bsc_mgcp_assign_patch(&con, msg) != 0) { + printf("Failed to handle assignment.\n"); + abort(); + } + + if (con.msc_endp != 1) { + printf("Timeslot should be 1.\n"); + abort(); + } + + if (con.bsc_endp != 0x1) { + printf("Assigned timeslot should have been 1.\n"); + abort(); + } + if (con.bsc->_endpoint_status[0x1] != 1) { + printf("The status on the BSC is wrong.\n"); + abort(); + } + + int multiplex, timeslot; + mgcp_endpoint_to_timeslot(0x1, &multiplex, ×lot); + + uint16_t cic = htons(timeslot & 0x1f); + if (memcmp(&cic, &msg->l2h[16], sizeof(cic)) != 0) { + printf("Message was not patched properly\n"); + printf("data cic: 0x%x %s\n", cic, osmo_hexdump(msg->l2h, msgb_l2len(msg))); + abort(); + } + + talloc_free(parsed); + + bsc_mgcp_dlcx(&con); + if (con.bsc_endp != -1 || con.msc_endp != -1 || + con.bsc->_endpoint_status[1] != 0 || con.bsc->last_endpoint != 0x1) { + printf("Clearing should remove the mapping.\n"); + abort(); + } + + bsc_config_free(bsc->cfg); + bsc_nat_free(nat); +} + +/* test the code to find a given connection */ +static void test_mgcp_find(void) +{ + struct bsc_nat *nat; + struct bsc_connection *con; + struct nat_sccp_connection *sccp_con; + + printf("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 nat_sccp_connection); + sccp_con->msc_endp = 12; + sccp_con->bsc_endp = 12; + sccp_con->bsc = con; + llist_add(&sccp_con->list_entry, &nat->sccp_connections); + + if (bsc_mgcp_find_con(nat, 11) != NULL) { + printf("Found the wrong connection.\n"); + abort(); + } + + if (bsc_mgcp_find_con(nat, 12) != sccp_con) { + printf("Didn't find the connection\n"); + abort(); + } + + /* free everything */ + bsc_nat_free(nat); +} + +static void test_mgcp_rewrite(void) +{ + int i; + struct msgb *output; + printf("Testing 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; + const int expected_payload_type = mgcp_messages[i].payload_type; + const int ensure_mode_set = mgcp_messages[i].ensure_mode_set; + int payload_type = -1; + + char *input = strdup(orig); + + output = bsc_mgcp_rewrite(input, strlen(input), 0x1e, + ip, port, -1, &payload_type, ensure_mode_set); + + if (payload_type != -1) { + fprintf(stderr, "Found media payload type %d in SDP data\n", + payload_type); + if (payload_type != expected_payload_type) { + printf("Wrong payload type %d (expected %d)\n", + payload_type, expected_payload_type); + abort(); + } + } + + if (msgb_l2len(output) != strlen(patc)) { + printf("Wrong sizes for test: %d %u != %zu != %zu\n", i, msgb_l2len(output), strlen(patc), strlen(orig)); + printf("String '%s' vs '%s'\n", (const char *) output->l2h, patc); + abort(); + } + + if (memcmp(output->l2h, patc, msgb_l2len(output)) != 0) { + printf("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]; + + printf("Testing MGCP response parsing.\n"); + + if (bsc_mgcp_parse_response(crcx_resp, &code, transaction) != 0) { + printf("Failed to parse CRCX resp.\n"); + abort(); + } + + if (code != 200) { + printf("Failed to parse the CODE properly. Got: %d\n", code); + abort(); + } + + if (strcmp(transaction, "23265295") != 0) { + printf("Failed to parse transaction id: '%s'\n", transaction); + abort(); + } + + ci = bsc_mgcp_extract_ci(crcx_resp); + if (ci != 1) { + printf("Failed to parse the CI. Got: %d\n", ci); + abort(); + } +} + +struct cr_filter { + const uint8_t *data; + int length; + int result; + int contype; + + const char *bsc_imsi_allow; + const char *bsc_imsi_deny; + const char *nat_imsi_deny; + int nat_cm_reject_cause; + int nat_lu_reject_cause; + int bsc_cm_reject_cause; + int bsc_lu_reject_cause; + int want_cm_reject_cause; + int want_lu_reject_cause; +}; + +static struct cr_filter cr_filter[] = { + { + .data = bssmap_cr, + .length = sizeof(bssmap_cr), + .result = 1, + .contype = FLT_CON_TYPE_CM_SERV_REQ, + .nat_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .nat_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + }, + { + .data = bss_lu, + .length = sizeof(bss_lu), + .result = 1, + .contype = FLT_CON_TYPE_LU, + .nat_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .nat_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + }, + { + .data = pag_resp, + .length = sizeof(pag_resp), + .result = 1, + .contype = FLT_CON_TYPE_PAG_RESP, + .nat_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .nat_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + }, + { + /* nat deny is before blank/null BSC */ + .data = bss_lu, + .length = sizeof(bss_lu), + .result = -3, + .nat_imsi_deny = "[0-9]*", + .contype = FLT_CON_TYPE_LU, + .nat_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .nat_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + }, + { + /* BSC allow is before NAT deny */ + .data = bss_lu, + .length = sizeof(bss_lu), + .result = 1, + .nat_imsi_deny = "[0-9]*", + .bsc_imsi_allow = "2440[0-9]*", + .contype = FLT_CON_TYPE_LU, + .nat_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .nat_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + }, + { + /* BSC allow is before NAT deny */ + .data = bss_lu, + .length = sizeof(bss_lu), + .result = 1, + .bsc_imsi_allow = "[0-9]*", + .nat_imsi_deny = "[0-9]*", + .contype = FLT_CON_TYPE_LU, + .nat_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .nat_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + }, + { + /* filter as deny is first */ + .data = bss_lu, + .length = sizeof(bss_lu), + .result = 1, + .bsc_imsi_deny = "[0-9]*", + .bsc_imsi_allow = "[0-9]*", + .nat_imsi_deny = "[0-9]*", + .contype = FLT_CON_TYPE_LU, + .nat_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .nat_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + }, + { + /* deny by nat rule */ + .data = bss_lu, + .length = sizeof(bss_lu), + .result = -3, + .bsc_imsi_deny = "000[0-9]*", + .nat_imsi_deny = "[0-9]*", + .contype = FLT_CON_TYPE_LU, + .nat_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .nat_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + }, + { + /* deny by nat rule */ + .data = bss_lu, + .length = sizeof(bss_lu), + .result = -3, + .bsc_imsi_deny = "000[0-9]*", + .nat_imsi_deny = "[0-9]*", + .contype = FLT_CON_TYPE_LU, + .nat_cm_reject_cause = 0x23, + .nat_lu_reject_cause = 0x42, + .bsc_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_lu_reject_cause = 0x42, + .want_cm_reject_cause = 0x23, + }, + { + /* deny by bsc rule */ + .data = bss_lu, + .length = sizeof(bss_lu), + .result = -2, + .bsc_imsi_deny = "[0-9]*", + .contype = FLT_CON_TYPE_LU, + .nat_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .nat_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .want_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + }, + { + /* deny by bsc rule */ + .data = bss_lu, + .length = sizeof(bss_lu), + .result = -2, + .bsc_imsi_deny = "[0-9]*", + .contype = FLT_CON_TYPE_LU, + .nat_cm_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .nat_lu_reject_cause = GSM48_REJECT_PLMN_NOT_ALLOWED, + .bsc_cm_reject_cause = 0x42, + .bsc_lu_reject_cause = 0x23, + .want_lu_reject_cause = 0x23, + .want_cm_reject_cause = 0x42, + }, +}; + +static void test_cr_filter() +{ + int i, res, contype; + struct msgb *msg = msgb_alloc(4096, "test_cr_filter"); + struct bsc_nat_parsed *parsed; + struct bsc_msg_acc_lst *nat_lst, *bsc_lst; + struct bsc_msg_acc_lst_entry *nat_entry, *bsc_entry; + struct bsc_filter_reject_cause cause; + + struct bsc_nat *nat = bsc_nat_alloc(); + struct bsc_connection *bsc = bsc_connection_alloc(nat); + bsc->cfg = bsc_config_alloc(nat, "foo", 0); + bsc_config_add_lac(bsc->cfg, 1234); + bsc->cfg->acc_lst_name = "bsc"; + nat->acc_lst_name = "nat"; + + nat_lst = bsc_msg_acc_lst_get(nat, &nat->access_lists, "nat"); + bsc_lst = bsc_msg_acc_lst_get(nat, &nat->access_lists, "bsc"); + + bsc_entry = bsc_msg_acc_lst_entry_create(bsc_lst); + nat_entry = bsc_msg_acc_lst_entry_create(nat_lst); + + /* test the default value as we are going to overwrite it */ + OSMO_ASSERT(bsc_entry->cm_reject_cause == GSM48_REJECT_PLMN_NOT_ALLOWED); + OSMO_ASSERT(bsc_entry->lu_reject_cause == GSM48_REJECT_PLMN_NOT_ALLOWED); + + for (i = 0; i < ARRAY_SIZE(cr_filter); ++i) { + char *imsi; + msgb_reset(msg); + copy_to_msg(msg, cr_filter[i].data, cr_filter[i].length); + + bsc_entry->cm_reject_cause = cr_filter[i].bsc_cm_reject_cause; + bsc_entry->lu_reject_cause = cr_filter[i].bsc_lu_reject_cause; + nat_entry->cm_reject_cause = cr_filter[i].nat_cm_reject_cause; + nat_entry->lu_reject_cause = cr_filter[i].nat_lu_reject_cause; + + if (gsm_parse_reg(nat_entry, &nat_entry->imsi_deny_re, &nat_entry->imsi_deny, + cr_filter[i].nat_imsi_deny ? 1 : 0, + &cr_filter[i].nat_imsi_deny) != 0) + abort(); + if (gsm_parse_reg(bsc_entry, &bsc_entry->imsi_allow_re, &bsc_entry->imsi_allow, + cr_filter[i].bsc_imsi_allow ? 1 : 0, + &cr_filter[i].bsc_imsi_allow) != 0) + abort(); + if (gsm_parse_reg(bsc_entry, &bsc_entry->imsi_deny_re, &bsc_entry->imsi_deny, + cr_filter[i].bsc_imsi_deny ? 1 : 0, + &cr_filter[i].bsc_imsi_deny) != 0) + abort(); + + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Failed to parse the message\n"); + abort(); + } + + memset(&cause, 0, sizeof(cause)); + res = bsc_nat_filter_sccp_cr(bsc, msg, parsed, &contype, &imsi, &cause); + if (res != cr_filter[i].result) { + printf("FAIL: Wrong result %d for test %d.\n", res, i); + abort(); + } + + + OSMO_ASSERT(cause.cm_reject_cause == cr_filter[i].want_cm_reject_cause); + OSMO_ASSERT(cause.lu_reject_cause == cr_filter[i].want_lu_reject_cause); + + if (contype != cr_filter[i].contype) { + printf("FAIL: Wrong contype %d for test %d.\n", res, contype); + abort(); + } + + talloc_steal(parsed, imsi); + talloc_free(parsed); + } + + msgb_free(msg); + bsc_nat_free(nat); +} + +static void test_dt_filter() +{ + int i; + struct msgb *msg = msgb_alloc(4096, "test_dt_filter"); + struct bsc_nat_parsed *parsed; + struct bsc_filter_reject_cause cause; + + struct bsc_nat *nat = bsc_nat_alloc(); + struct bsc_connection *bsc = bsc_connection_alloc(nat); + struct nat_sccp_connection *con = talloc_zero(0, struct nat_sccp_connection); + + bsc->cfg = bsc_config_alloc(nat, "foo", 0); + bsc_config_add_lac(bsc->cfg, 23); + con->bsc = bsc; + + msgb_reset(msg); + copy_to_msg(msg, id_resp, ARRAY_SIZE(id_resp)); + + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse ID resp\n"); + abort(); + } + + if (parsed->bssap != BSSAP_MSG_DTAP) { + printf("FAIL: It should be dtap\n"); + abort(); + } + + /* gsm_type is actually the size of the dtap */ + if (parsed->gsm_type < msgb_l3len(msg) - 3) { + printf("FAIL: Not enough space for the content\n"); + abort(); + } + + memset(&cause, 0, sizeof(cause)); + OSMO_ASSERT(!con->filter_state.imsi); + if (bsc_nat_filter_dt(bsc, msg, con, parsed, &cause) != 1) { + printf("FAIL: Should have passed..\n"); + abort(); + } + OSMO_ASSERT(con->filter_state.imsi); + OSMO_ASSERT(talloc_parent(con->filter_state.imsi) == con); + + /* just some basic length checking... */ + for (i = ARRAY_SIZE(id_resp); i >= 0; --i) { + msgb_reset(msg); + copy_to_msg(msg, id_resp, ARRAY_SIZE(id_resp)); + + parsed = bsc_nat_parse(msg); + if (!parsed) + continue; + + con->filter_state.imsi_checked = 0; + memset(&cause, 0, sizeof(cause)); + bsc_nat_filter_dt(bsc, msg, con, parsed, &cause); + } + + msgb_free(msg); + bsc_nat_free(nat); +} + +static void test_setup_rewrite() +{ + struct msgb *msg = msgb_alloc(4096, "test_dt_filter"); + struct msgb *out; + struct bsc_nat_parsed *parsed; + const char *imsi = "27408000001234"; + + struct bsc_nat *nat = bsc_nat_alloc(); + + /* a fake list */ + struct osmo_config_list entries; + struct osmo_config_entry entry; + + INIT_LLIST_HEAD(&entries.entry); + entry.mcc = "274"; + entry.mnc = "08"; + entry.option = "^0([1-9])"; + entry.text = "0049"; + llist_add_tail(&entry.list, &entries.entry); + bsc_nat_num_rewr_entry_adapt(nat, &nat->num_rewr, &entries); + + /* verify that nothing changed */ + msgb_reset(msg); + copy_to_msg(msg, cc_setup_international, ARRAY_SIZE(cc_setup_international)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse ID resp\n"); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (msg != out) { + printf("FAIL: The message should not have been changed\n"); + abort(); + } + + verify_msg(out, cc_setup_international, ARRAY_SIZE(cc_setup_international)); + talloc_free(parsed); + + /* verify that something in the message changes */ + msgb_reset(msg); + copy_to_msg(msg, cc_setup_national, ARRAY_SIZE(cc_setup_national)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse ID resp\n"); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (!out) { + printf("FAIL: A new message should be created.\n"); + abort(); + } + + if (msg == out) { + printf("FAIL: The message should have changed\n"); + abort(); + } + + verify_msg(out, cc_setup_national_patched, ARRAY_SIZE(cc_setup_national_patched)); + msgb_free(out); + + /* Make sure that a wildcard is matching */ + entry.mnc = "*"; + bsc_nat_num_rewr_entry_adapt(nat, &nat->num_rewr, &entries); + msg = msgb_alloc(4096, "test_dt_filter"); + copy_to_msg(msg, cc_setup_national, ARRAY_SIZE(cc_setup_national)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse ID resp\n"); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (!out) { + printf("FAIL: A new message should be created.\n"); + abort(); + } + + if (msg == out) { + printf("FAIL: The message should have changed\n"); + abort(); + } + + verify_msg(out, cc_setup_national_patched, ARRAY_SIZE(cc_setup_national_patched)); + msgb_free(out); + + /* Make sure that a wildcard is matching */ + entry.mnc = "09"; + bsc_nat_num_rewr_entry_adapt(nat, &nat->num_rewr, &entries); + msg = msgb_alloc(4096, "test_dt_filter"); + copy_to_msg(msg, cc_setup_national, ARRAY_SIZE(cc_setup_national)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse ID resp\n"); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (out != msg) { + printf("FAIL: The message should be unchanged.\n"); + abort(); + } + + verify_msg(out, cc_setup_national, ARRAY_SIZE(cc_setup_national)); + msgb_free(out); + + /* Now see what happens to an international number */ + entry.mnc = "*"; + entry.option = "^\\+[0-9][0-9]([1-9])"; + entry.text = "0036"; + bsc_nat_num_rewr_entry_adapt(nat, &nat->num_rewr, &entries); + msg = msgb_alloc(4096, "test_dt_filter"); + copy_to_msg(msg, cc_setup_national_patched, ARRAY_SIZE(cc_setup_national_patched)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse ID resp %d\n", __LINE__); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (!out) { + printf("FAIL: A new message should be created %d.\n", __LINE__); + abort(); + } + + if (msg == out) { + printf("FAIL: The message should have changed %d\n", __LINE__); + abort(); + } + + verify_msg(out, cc_setup_national_patched_patched, + ARRAY_SIZE(cc_setup_national_patched_patched)); + msgb_free(out); + + /* go from international back to national */ + entry.mnc = "*"; + entry.option = "^\\+([0-9])"; + entry.text = "36"; + bsc_nat_num_rewr_entry_adapt(nat, &nat->num_rewr, &entries); + msg = msgb_alloc(4096, "test_dt_filter"); + copy_to_msg(msg, cc_setup_national_patched, ARRAY_SIZE(cc_setup_national_patched)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse ID resp %d\n", __LINE__); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (!out) { + printf("FAIL: A new message should be created %d.\n", __LINE__); + abort(); + } + + if (msg == out) { + printf("FAIL: The message should have changed %d\n", __LINE__); + abort(); + } + + verify_msg(out, cc_setup_national_again, + ARRAY_SIZE(cc_setup_national_again)); + msgb_free(out); + bsc_nat_num_rewr_entry_adapt(nat, &nat->num_rewr, NULL); + bsc_nat_free(nat); +} + +static void test_setup_rewrite_prefix(void) +{ + struct msgb *msg = msgb_alloc(4096, "test_dt_filter"); + struct msgb *out; + struct bsc_nat_parsed *parsed; + const char *imsi = "27408000001234"; + + struct bsc_nat *nat = bsc_nat_alloc(); + + /* a fake list */ + struct osmo_config_list entries; + struct osmo_config_entry entry; + + INIT_LLIST_HEAD(&entries.entry); + entry.mcc = "274"; + entry.mnc = "08"; + entry.option = "^0([1-9])"; + entry.text = "prefix_lookup"; + llist_add_tail(&entry.list, &entries.entry); + bsc_nat_num_rewr_entry_adapt(nat, &nat->num_rewr, &entries); + + nat->num_rewr_trie = nat_rewrite_parse(nat, "prefixes.csv"); + + msgb_reset(msg); + copy_to_msg(msg, cc_setup_national, ARRAY_SIZE(cc_setup_national)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse ID resp\n"); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (!out) { + printf("FAIL: A new message should be created.\n"); + abort(); + } + + if (msg == out) { + printf("FAIL: The message should have changed\n"); + abort(); + } + + verify_msg(out, cc_setup_national_patched, ARRAY_SIZE(cc_setup_national_patched)); + msgb_free(out); + + bsc_nat_num_rewr_entry_adapt(nat, &nat->num_rewr, NULL); + bsc_nat_free(nat); +} + +static void test_setup_rewrite_post(void) +{ + struct msgb *msg = msgb_alloc(4096, "test_dt_filter"); + struct msgb *out; + struct bsc_nat_parsed *parsed; + const char *imsi = "27408000001234"; + + struct bsc_nat *nat = bsc_nat_alloc(); + + /* a fake list */ + struct osmo_config_list entries; + struct osmo_config_entry entry; + struct osmo_config_list entries_post; + struct osmo_config_entry entry_post; + + INIT_LLIST_HEAD(&entries.entry); + entry.mcc = "274"; + entry.mnc = "08"; + entry.option = "^0([1-9])"; + entry.text = "0049"; + llist_add_tail(&entry.list, &entries.entry); + bsc_nat_num_rewr_entry_adapt(nat, &nat->num_rewr, &entries); + + /* attempt to undo the previous one */ + INIT_LLIST_HEAD(&entries_post.entry); + entry_post.mcc = "274"; + entry_post.mnc = "08"; + entry_post.option = "^\\+49([1-9])"; + entry_post.text = "prefix_lookup"; + llist_add_tail(&entry_post.list, &entries_post.entry); + bsc_nat_num_rewr_entry_adapt(nat, &nat->num_rewr_post, &entries_post); + + nat->num_rewr_trie = nat_rewrite_parse(nat, "prefixes.csv"); + + msgb_reset(msg); + copy_to_msg(msg, cc_setup_national, ARRAY_SIZE(cc_setup_national)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse ID resp\n"); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (!out) { + printf("FAIL: A new message should be created.\n"); + abort(); + } + + if (msg == out) { + printf("FAIL: The message should have changed\n"); + abort(); + } + + verify_msg(out, cc_setup_national, ARRAY_SIZE(cc_setup_national)); + msgb_free(out); + + bsc_nat_free(nat); +} + +static void test_sms_smsc_rewrite() +{ + struct msgb *msg = msgb_alloc(4096, "SMSC rewrite"), *out; + struct bsc_nat_parsed *parsed; + const char *imsi = "515039900406700"; + + struct bsc_nat *nat = bsc_nat_alloc(); + + /* a fake list */ + struct osmo_config_list smsc_entries, dest_entries, clear_entries; + struct osmo_config_entry smsc_entry, dest_entry, clear_entry; + + INIT_LLIST_HEAD(&smsc_entries.entry); + INIT_LLIST_HEAD(&dest_entries.entry); + INIT_LLIST_HEAD(&clear_entries.entry); + smsc_entry.mcc = "^515039"; + smsc_entry.option = "639180000105()"; + smsc_entry.text = "6666666666667"; + llist_add_tail(&smsc_entry.list, &smsc_entries.entry); + dest_entry.mcc = "515"; + dest_entry.mnc = "03"; + dest_entry.option = "^0049"; + dest_entry.text = ""; + llist_add_tail(&dest_entry.list, &dest_entries.entry); + clear_entry.mcc = "^515039"; + clear_entry.option = "^0049"; + clear_entry.text = ""; + llist_add_tail(&clear_entry.list, &clear_entries.entry); + + bsc_nat_num_rewr_entry_adapt(nat, &nat->smsc_rewr, &smsc_entries); + bsc_nat_num_rewr_entry_adapt(nat, &nat->tpdest_match, &dest_entries); + bsc_nat_num_rewr_entry_adapt(nat, &nat->sms_clear_tp_srr, &clear_entries); + + printf("Testing SMSC rewriting.\n"); + + /* + * Check if the SMSC address is changed + */ + copy_to_msg(msg, smsc_rewrite, ARRAY_SIZE(smsc_rewrite)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse SMS\n"); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (out == msg) { + printf("FAIL: This should have changed.\n"); + abort(); + } + + verify_msg(out, smsc_rewrite_patched, ARRAY_SIZE(smsc_rewrite_patched)); + msgb_free(out); + + /* clear out the filter for SMSC */ + printf("Attempting to only rewrite the HDR\n"); + bsc_nat_num_rewr_entry_adapt(nat, &nat->smsc_rewr, NULL); + msg = msgb_alloc(4096, "SMSC rewrite"); + copy_to_msg(msg, smsc_rewrite, ARRAY_SIZE(smsc_rewrite)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse SMS\n"); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (out == msg) { + printf("FAIL: This should have changed.\n"); + abort(); + } + + verify_msg(out, smsc_rewrite_patched_hdr, ARRAY_SIZE(smsc_rewrite_patched_hdr)); + msgb_free(out); + + /* clear out the next filter */ + printf("Attempting to change nothing.\n"); + bsc_nat_num_rewr_entry_adapt(nat, &nat->sms_clear_tp_srr, NULL); + msg = msgb_alloc(4096, "SMSC rewrite"); + copy_to_msg(msg, smsc_rewrite, ARRAY_SIZE(smsc_rewrite)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse SMS\n"); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (out != msg) { + printf("FAIL: This should not have changed.\n"); + abort(); + } + + verify_msg(out, smsc_rewrite, ARRAY_SIZE(smsc_rewrite)); + msgb_free(out); + bsc_nat_free(nat); +} + +static void test_sms_number_rewrite(void) +{ + struct msgb *msg, *out; + struct bsc_nat_parsed *parsed; + const char *imsi = "515039900406700"; + + struct bsc_nat *nat = bsc_nat_alloc(); + + /* a fake list */ + struct osmo_config_list num_entries, clear_entries; + struct osmo_config_entry num_entry, clear_entry; + + INIT_LLIST_HEAD(&num_entries.entry); + num_entry.mcc = "^515039"; + num_entry.option = "^0049()"; + num_entry.text = "0032"; + llist_add_tail(&num_entry.list, &num_entries.entry); + + bsc_nat_num_rewr_entry_adapt(nat, &nat->sms_num_rewr, &num_entries); + + printf("Testing SMS TP-DA rewriting.\n"); + + /* + * Check if the SMSC address is changed + */ + msg = msgb_alloc(4096, "SMSC rewrite"); + copy_to_msg(msg, smsc_rewrite, ARRAY_SIZE(smsc_rewrite)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse SMS\n"); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (out == msg) { + printf("FAIL: This should have changed.\n"); + abort(); + } + + verify_msg(out, smsc_rewrite_num_patched, + ARRAY_SIZE(smsc_rewrite_num_patched)); + msgb_free(out); + + /* + * Now with TP-SRR rewriting enabled + */ + INIT_LLIST_HEAD(&clear_entries.entry); + clear_entry.mcc = "^515039"; + clear_entry.option = ""; + clear_entry.text = ""; + llist_add_tail(&clear_entry.list, &clear_entries.entry); + bsc_nat_num_rewr_entry_adapt(nat, &nat->sms_clear_tp_srr, &clear_entries); + + msg = msgb_alloc(4096, "SMSC rewrite"); + copy_to_msg(msg, smsc_rewrite, ARRAY_SIZE(smsc_rewrite)); + parsed = bsc_nat_parse(msg); + if (!parsed) { + printf("FAIL: Could not parse SMS\n"); + abort(); + } + + out = bsc_nat_rewrite_msg(nat, msg, parsed, imsi); + if (out == msg) { + printf("FAIL: This should have changed.\n"); + abort(); + } + + verify_msg(out, smsc_rewrite_num_patched_tp_srr, + ARRAY_SIZE(smsc_rewrite_num_patched_tp_srr)); + msgb_free(out); + bsc_nat_free(nat); +} + +static void test_barr_list_parsing(void) +{ + int rc; + int cm, lu; + struct rb_node *node; + struct rb_root root = RB_ROOT; + struct osmo_config_list *lst = osmo_config_list_parse(NULL, "barr.cfg"); + if (lst == NULL) + abort(); + + rc = bsc_filter_barr_adapt(NULL, &root, lst); + if (rc != 0) + abort(); + talloc_free(lst); + + + for (node = rb_first(&root); node; node = rb_next(node)) { + struct bsc_filter_barr_entry *entry; + entry = rb_entry(node, struct bsc_filter_barr_entry, node); + printf("IMSI: %s CM: %d LU: %d\n", entry->imsi, + entry->cm_reject_cause, entry->lu_reject_cause); + } + + /* do the look up now.. */ + rc = bsc_filter_barr_find(&root, "12123119", &cm, &lu); + if (!rc) { + printf("Failed to find the IMSI.\n"); + abort(); + } + + if (cm != 3 || lu != 4) { + printf("Found CM(%d) and LU(%d)\n", cm, lu); + abort(); + } + + /* empty and check that it is empty */ + bsc_filter_barr_adapt(NULL, &root, NULL); + if (!RB_EMPTY_ROOT(&root)) { + printf("Failed to empty the list.\n"); + abort(); + } + + /* check that dup results in an error */ + lst = osmo_config_list_parse(NULL, "barr_dup.cfg"); + if (lst == NULL) { + printf("Failed to parse list with dups\n"); + abort(); + } + + rc = bsc_filter_barr_adapt(NULL, &root, lst); + if (rc != -1) { + printf("It should have failed due dup\n"); + abort(); + } + talloc_free(lst); + + /* dump for reference */ + for (node = rb_first(&root); node; node = rb_next(node)) { + struct bsc_filter_barr_entry *entry; + entry = rb_entry(node, struct bsc_filter_barr_entry, node); + printf("IMSI: %s CM: %d LU: %d\n", entry->imsi, + entry->cm_reject_cause, entry->lu_reject_cause); + + } + rc = bsc_filter_barr_adapt(NULL, &root, NULL); +} + +static void test_nat_extract_lac() +{ + int res; + struct bsc_connection *bsc; + struct bsc_nat *nat; + struct nat_sccp_connection con; + struct bsc_nat_parsed *parsed; + struct msgb *msg = msgb_alloc(4096, "test-message"); + + printf("Testing LAC extraction from SCCP CR\n"); + + /* initialize the testcase */ + nat = bsc_nat_alloc(); + bsc = bsc_connection_alloc(nat); + bsc->cfg = bsc_config_alloc(nat, "foo", 0); + + memset(&con, 0, sizeof(con)); + con.bsc = bsc; + + /* create the SCCP CR */ + msg->l2h = msgb_put(msg, ARRAY_SIZE(bssmap_cr)); + memcpy(msg->l2h, bssmap_cr, ARRAY_SIZE(bssmap_cr)); + + /* parse it and pass it on */ + parsed = bsc_nat_parse(msg); + res = bsc_nat_extract_lac(bsc, &con, parsed, msg); + OSMO_ASSERT(res == 0); + + /* verify the LAC */ + OSMO_ASSERT(con.lac == 8210); + OSMO_ASSERT(con.ci == 50000); + + bsc_nat_free(nat); +} + +int main(int argc, char **argv) +{ + msgb_talloc_ctx_init(NULL, 0); + sccp_set_log_area(DSCCP); + osmo_init_logging(&log_info); + + test_filter(); + test_contrack(); + test_paging(); + test_mgcp_ass_tracking(); + test_mgcp_find(); + test_mgcp_rewrite(); + test_mgcp_parse(); + test_cr_filter(); + test_dt_filter(); + test_setup_rewrite(); + test_setup_rewrite_prefix(); + test_setup_rewrite_post(); + test_sms_smsc_rewrite(); + test_sms_number_rewrite(); + test_mgcp_allocations(); + test_barr_list_parsing(); + test_nat_extract_lac(); + + printf("Testing execution completed.\n"); + return 0; +} + +/* stub */ +void bsc_nat_send_mgcp_to_msc(struct bsc_nat *nat, struct msgb *msg) +{ + abort(); +} diff --git a/tests/bsc-nat/bsc_nat_test.ok b/tests/bsc-nat/bsc_nat_test.ok new file mode 100644 index 000000000..ab04f4273 --- /dev/null +++ b/tests/bsc-nat/bsc_nat_test.ok @@ -0,0 +1,39 @@ +Testing BSS Filtering. +Going to test item: 0 +Going to test item: 1 +Going to test item: 2 +Going to test item: 3 +Going to test item: 4 +Going to test item: 5 +Going to test item: 6 +Going to test item: 7 +Going to test item: 8 +Going to test item: 9 +Going to test item: 10 +Going to test item: 11 +Going to test item: 12 +Testing connection tracking. +Testing paging by lac. +Testing MGCP. +Testing finding of a BSC Connection +Testing rewriting MGCP messages. +Testing MGCP response parsing. +Testing SMSC rewriting. +Attempting to only rewrite the HDR +Attempting to change nothing. +Testing SMS TP-DA rewriting. +IMSI: 12123115 CM: 3 LU: 4 +IMSI: 12123116 CM: 3 LU: 4 +IMSI: 12123117 CM: 3 LU: 4 +IMSI: 12123118 CM: 3 LU: 4 +IMSI: 12123119 CM: 3 LU: 4 +IMSI: 12123120 CM: 3 LU: 4 +IMSI: 12123123 CM: 3 LU: 1 +IMSI: 12123124 CM: 3 LU: 2 +IMSI: 12123125 CM: 3 LU: 3 +IMSI: 12123126 CM: 3 LU: 4 +IMSI: 12123127 CM: 3 LU: 5 +IMSI: 12123128 CM: 3 LU: 6 +IMSI: 12123124 CM: 3 LU: 2 +Testing LAC extraction from SCCP CR +Testing execution completed. diff --git a/tests/bsc-nat/prefixes.csv b/tests/bsc-nat/prefixes.csv new file mode 100644 index 000000000..0c7660f10 --- /dev/null +++ b/tests/bsc-nat/prefixes.csv @@ -0,0 +1,2 @@ +0172,0049 ++49,0 |