implement unit tests for osmo_sccp_addr_{parse,encode}()

The recent bug with chopped-off point codes in SCCP Address handling
has shown that this code could need proper test cases.  This patch
adds a testsuite for SCCP address encoding and decoding.

Related: OS#2441
Change-Id: I612352736ab33462ca0dd97798a2c437eadccb86
This commit is contained in:
Harald Welte 2017-10-27 17:39:34 +02:00
parent 212d0c4c76
commit db736f432a
6 changed files with 260 additions and 2 deletions

View File

@ -77,3 +77,4 @@ int osmo_isup_party_parse(char *out_digits, const uint8_t *in,
unsigned int in_num_bytes, bool odd);
int osmo_sccp_addr_parse(struct osmo_sccp_addr *out,
const uint8_t *addr, unsigned int addrlen);
int osmo_sccp_addr_encode(struct msgb *msg, const struct osmo_sccp_addr *in);

View File

@ -22,7 +22,8 @@ AT_CLEANUP
AT_SETUP([xua])
AT_KEYWORDS([xua])
cat $abs_srcdir/xua/xua_test.ok > expout
AT_CHECK([$abs_top_builddir/tests/xua/xua_test], [], [expout], [ignore])
cat $abs_srcdir/xua/xua_test.err > experr
AT_CHECK([$abs_top_builddir/tests/xua/xua_test], [], [expout], [experr])
AT_CLEANUP
AT_SETUP([ss7])

View File

@ -5,7 +5,7 @@ AM_LDFLAGS = -static
LDADD = $(top_builddir)/src/libosmo-sigtran.la \
$(LIBOSMOCORE_LIBS) $(LIBOSMOVTY_LIBS) $(LIBOSMONETIF_LIBS) $(LIBSCTP_LIBS)
EXTRA_DIST = xua_test.ok
EXTRA_DIST = xua_test.ok xua_test.err
noinst_HEADERS = sccp_test_data.h
noinst_PROGRAMS = xua_test

View File

@ -34,6 +34,7 @@
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <errno.h>
static void test_isup_parse(void)
{
@ -140,6 +141,183 @@ static void test_sccp_addr_parser(void)
}
}
struct sccp_addr_enc_testcase {
const char *name;
struct osmo_sccp_addr addr_in;
int rc;
char *exp_out;
};
static const struct sccp_addr_enc_testcase enc_cases[] = {
{
.name = "NOGT-PC1024",
.addr_in = {
.ri = OSMO_SCCP_RI_SSN_PC,
.presence = OSMO_SCCP_ADDR_T_PC,
.pc = 1024,
},
.rc = 3,
.exp_out = "410004",
}, {
.name = "NOGT-PC16383",
.addr_in = {
.ri = OSMO_SCCP_RI_SSN_PC,
.presence = OSMO_SCCP_ADDR_T_PC,
.pc = 16383,
},
.rc = 3,
.exp_out = "41ff3f",
}, {
.name = "NOGT-PC16383-SSN90",
.addr_in = {
.ri = OSMO_SCCP_RI_SSN_PC,
.presence = OSMO_SCCP_ADDR_T_PC | OSMO_SCCP_ADDR_T_SSN,
.pc = 16383,
.ssn = 0x5A,
},
.rc = 4,
.exp_out = "43ff3f5a",
}, {
.name = "GT-PC16383-NAIONLY",
.addr_in = {
.ri = OSMO_SCCP_RI_SSN_PC,
.presence = OSMO_SCCP_ADDR_T_PC | OSMO_SCCP_ADDR_T_GT,
.pc = 16383,
.gt.gti = OSMO_SCCP_GTI_NAI_ONLY,
.gt.nai = 0x7f,
},
.rc = 4,
.exp_out = "45ff3f7f",
}, {
.name = "GT-NOPC-NAIONLY",
.addr_in = {
.ri = OSMO_SCCP_RI_GT,
.presence = OSMO_SCCP_ADDR_T_GT,
.gt.gti = OSMO_SCCP_GTI_NAI_ONLY,
.gt.nai = 0x03,
},
.rc = 2,
.exp_out = "0403",
}, {
.name = "GT-NOPC-TTONLY",
.addr_in = {
.ri = OSMO_SCCP_RI_GT,
.presence = OSMO_SCCP_ADDR_T_GT,
.gt.gti = OSMO_SCCP_GTI_TT_ONLY,
.gt.tt = 0x03,
},
.rc = -EINVAL,
}, {
.name = "GT-NOPC-TT_NPL_ENC-ODD",
.addr_in = {
.ri = OSMO_SCCP_RI_GT,
.presence = OSMO_SCCP_ADDR_T_GT,
.gt.gti = OSMO_SCCP_GTI_TT_NPL_ENC,
.gt.tt = 0x03,
.gt.npi = 1,
.gt.digits = "123",
},
.rc = 5,
.exp_out = "0c03112103",
}, {
.name = "GT-NOPC-TT_NPL_ENC-EVEN",
.addr_in = {
.ri = OSMO_SCCP_RI_GT,
.presence = OSMO_SCCP_ADDR_T_GT,
.gt.gti = OSMO_SCCP_GTI_TT_NPL_ENC,
.gt.tt = 0x03,
.gt.npi = 1,
.gt.digits = "1234",
},
.rc = 5,
.exp_out = "0c03122143",
}, {
.name = "GT-NOPC-TT_NPL_ENC_NAI-EVEN",
.addr_in = {
.ri = OSMO_SCCP_RI_GT,
.presence = OSMO_SCCP_ADDR_T_GT,
.gt.gti = OSMO_SCCP_GTI_TT_NPL_ENC_NAI,
.gt.tt = 0x03,
.gt.npi = 1,
.gt.nai = 4,
.gt.digits = "1234",
},
.rc = 6,
.exp_out = "100312042143",
}, {
.name = "GT-NOPC-GTI_INVALID",
.addr_in = {
.ri = OSMO_SCCP_RI_GT,
.presence = OSMO_SCCP_ADDR_T_GT,
.gt.gti = 23,
.gt.tt = 0x03,
.gt.npi = 1,
.gt.nai = 4,
.gt.digits = "1234",
},
.rc = -EINVAL,
}, {
.name = "GT-NOPC-TT_NPL_ENC_NAI-EVEN-NONNUM",
.addr_in = {
.ri = OSMO_SCCP_RI_GT,
.presence = OSMO_SCCP_ADDR_T_GT,
.gt.gti = OSMO_SCCP_GTI_TT_NPL_ENC_NAI,
.gt.tt = 0x03,
.gt.npi = 1,
.gt.nai = 4,
.gt.digits = "1ABF",
},
.rc = 6,
.exp_out = "10031204a1fb",
},
};
static void testcase_sccp_addr_encdec(const struct sccp_addr_enc_testcase *tcase)
{
struct msgb *msg = msgb_alloc(1024, "encdec");
struct osmo_sccp_addr out;
char *str;
int rc;
printf("\n=> %s\n", tcase->name);
printf("input addr: %s\n", osmo_sccp_addr_dump(&tcase->addr_in));
rc = osmo_sccp_addr_encode(msg, &tcase->addr_in);
printf("rc=%d, expected rc=%d\n", rc, tcase->rc);
OSMO_ASSERT(rc == tcase->rc);
if (rc <= 0) {
msgb_free(msg);
return;
}
str = osmo_hexdump_nospc(msg->data, msg->len);
printf("encoded addr: %s\n", str);
if (tcase->exp_out) {
printf("expected addr: %s\n", tcase->exp_out);
OSMO_ASSERT(!strcmp(tcase->exp_out, str));
}
rc = osmo_sccp_addr_parse(&out, msg->data, msg->len);
printf("decod addr: %s\n", osmo_sccp_addr_dump(&out));
OSMO_ASSERT(!memcmp(&out, &tcase->addr_in, sizeof(out)));
msgb_free(msg);
}
static void test_sccp_addr_encdec(void)
{
int i;
printf("Testing SCCP Address Encode/Decode\n");
for (i = 0; i < ARRAY_SIZE(enc_cases); i++) {
testcase_sccp_addr_encdec(&enc_cases[i]);
}
printf("\n");
}
/* sccp_addr_testcases[0].expected.gt transcoded into a SUA Global Title IE */
static const uint8_t expected_sua_gt[] = {
0x80, 0x01, 0x00, 0x14, 0x00, 0x00, 0x00, 0x04,
@ -408,12 +586,15 @@ int main(int argc, char **argv)
log_init(&log_info, NULL);
stderr_target = log_target_create_stderr();
log_add_target(stderr_target);
log_set_use_color(stderr_target, 0);
log_set_print_filename(stderr_target, 0);
test_isup_parse();
test_sccp_addr_parser();
test_helpers();
test_sccp2sua();
test_rkm();
test_sccp_addr_encdec();
printf("All tests passed.\n");
return 0;

2
tests/xua/xua_test.err Normal file
View File

@ -0,0 +1,2 @@
Unsupported Translation Type 2requested
Unsupported GTI 23 requested

View File

@ -132,4 +132,77 @@ Re-Encoding decoded SUA to SCCP
SCCP Output: 09 81 03 0d 18 0a 12 07 00 12 04 53 84 09 00 17 0b 12 06 00 12 04 44 87 20 00 20 65 9a 65 81 97 48 04 26 00 01 98 49 04 51 01 03 df 6c 81 88 a1 81 85 02 01 44 02 01 07 30 80 a7 80 a0 80 04 01 2b 30 80 30 12 83 01 10 84 01 07 85 07 91 44 57 76 67 16 97 86 01 20 30 06 82 01 18 84 01 04 00 00 00 00 a3 06 04 01 42 84 01 05 a3 06 04 01 51 84 01 05 a3 06 04 01 31 84 01 05 a3 09 04 01 12 84 01 05 82 01 02 a3 09 04 01 11 84 01 05 81 01 01 a3 06 04 01 14 84 01 00 a3 0b 04 01 41 84 01 04 30 03 83 01 10 a3 0b 04 01 41 84 01 04 30 03 82 01 18 00 00 00 00
Parsing M3UA Message
Parsing Nested M3UA Routing Key IE
Testing SCCP Address Encode/Decode
=> NOGT-PC1024
input addr: RI=2,PC=1024,GTI=0
rc=3, expected rc=3
encoded addr: 410004
expected addr: 410004
decod addr: RI=2,PC=1024,GTI=0
=> NOGT-PC16383
input addr: RI=2,PC=16383,GTI=0
rc=3, expected rc=3
encoded addr: 41ff3f
expected addr: 41ff3f
decod addr: RI=2,PC=16383,GTI=0
=> NOGT-PC16383-SSN90
input addr: RI=2,PC=16383,SSN=90,GTI=0
rc=4, expected rc=4
encoded addr: 43ff3f5a
expected addr: 43ff3f5a
decod addr: RI=2,PC=16383,SSN=90,GTI=0
=> GT-PC16383-NAIONLY
input addr: RI=2,PC=16383,GTI=1,GT=()
rc=4, expected rc=4
encoded addr: 45ff3f7f
expected addr: 45ff3f7f
decod addr: RI=2,PC=16383,GTI=1,GT=()
=> GT-NOPC-NAIONLY
input addr: RI=1,GTI=1,GT=()
rc=2, expected rc=2
encoded addr: 0403
expected addr: 0403
decod addr: RI=1,GTI=1,GT=()
=> GT-NOPC-TTONLY
input addr: RI=1,GTI=2,GT=(TT=3,DIG=)
rc=-22, expected rc=-22
=> GT-NOPC-TT_NPL_ENC-ODD
input addr: RI=1,GTI=3,GT=(TT=3,NPL=1,DIG=123)
rc=5, expected rc=5
encoded addr: 0c03112103
expected addr: 0c03112103
decod addr: RI=1,GTI=3,GT=(TT=3,NPL=1,DIG=123)
=> GT-NOPC-TT_NPL_ENC-EVEN
input addr: RI=1,GTI=3,GT=(TT=3,NPL=1,DIG=1234)
rc=5, expected rc=5
encoded addr: 0c03122143
expected addr: 0c03122143
decod addr: RI=1,GTI=3,GT=(TT=3,NPL=1,DIG=1234)
=> GT-NOPC-TT_NPL_ENC_NAI-EVEN
input addr: RI=1,GTI=4,GT=(TT=3,NPL=1,NAI=4,DIG=1234)
rc=6, expected rc=6
encoded addr: 100312042143
expected addr: 100312042143
decod addr: RI=1,GTI=4,GT=(TT=3,NPL=1,NAI=4,DIG=1234)
=> GT-NOPC-GTI_INVALID
input addr: RI=1,GTI=23,GT=(DIG=1234)
rc=-22, expected rc=-22
=> GT-NOPC-TT_NPL_ENC_NAI-EVEN-NONNUM
input addr: RI=1,GTI=4,GT=(TT=3,NPL=1,NAI=4,DIG=1ABF)
rc=6, expected rc=6
encoded addr: 10031204a1fb
expected addr: 10031204a1fb
decod addr: RI=1,GTI=4,GT=(TT=3,NPL=1,NAI=4,DIG=1ABF)
All tests passed.