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freebsd-dev/contrib/ntp/sntp/tests/packetHandling.c
Xin LI 68ba7e87e7 MFV r294491: ntp 4.2.8p6. 
Security:	CVE-2015-7973, CVE-2015-7974, CVE-2015-7975
Security:	CVE-2015-7976, CVE-2015-7977, CVE-2015-7978
Security:	CVE-2015-7979, CVE-2015-8138, CVE-2015-8139
Security:	CVE-2015-8140, CVE-2015-8158
With hat:	so
2016-01-22 07:32:39 +00:00

314 lines
6.9 KiB
C
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#include "config.h"
#include "ntp_debug.h"
#include "ntp_stdlib.h"
#include "ntp_types.h"
#include "sntptest.h"
#include "kod_management.h"
#include "main.h"
#include "networking.h"
#include "ntp.h"
#include "unity.h"
void setUp(void);
int LfpEquality(const l_fp expected, const l_fp actual);
void test_GenerateUnauthenticatedPacket(void);
void test_GenerateAuthenticatedPacket(void);
void test_OffsetCalculationPositiveOffset(void);
void test_OffsetCalculationNegativeOffset(void);
void test_HandleUnusableServer(void);
void test_HandleUnusablePacket(void);
void test_HandleServerAuthenticationFailure(void);
void test_HandleKodDemobilize(void);
void test_HandleKodRate(void);
void test_HandleCorrectPacket(void);
void
setUp(void)
{
init_lib();
}
int
LfpEquality(
const l_fp expected,
const l_fp actual
)
{
return !!(L_ISEQU(&expected, &actual));
}
void
test_GenerateUnauthenticatedPacket(void)
{
struct pkt testpkt;
struct timeval xmt;
l_fp expected_xmt, actual_xmt;
GETTIMEOFDAY(&xmt, NULL);
xmt.tv_sec += JAN_1970;
TEST_ASSERT_EQUAL(LEN_PKT_NOMAC,
generate_pkt(&testpkt, &xmt, 0, NULL));
TEST_ASSERT_EQUAL(LEAP_NOTINSYNC, PKT_LEAP(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(NTP_VERSION, PKT_VERSION(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(MODE_CLIENT, PKT_MODE(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(STRATUM_UNSPEC, PKT_TO_STRATUM(testpkt.stratum));
TEST_ASSERT_EQUAL(8, testpkt.ppoll);
TVTOTS(&xmt, &expected_xmt);
NTOHL_FP(&testpkt.xmt, &actual_xmt);
TEST_ASSERT_TRUE(LfpEquality(expected_xmt, actual_xmt));
}
void
test_GenerateAuthenticatedPacket(void)
{
static const int EXPECTED_PKTLEN = LEN_PKT_NOMAC + MAX_MD5_LEN;
struct key testkey;
struct pkt testpkt;
struct timeval xmt;
l_fp expected_xmt, actual_xmt;
char expected_mac[MAX_MD5_LEN];
testkey.next = NULL;
testkey.key_id = 30;
testkey.key_len = 9;
memcpy(testkey.key_seq, "123456789", testkey.key_len);
memcpy(testkey.type, "MD5", 3);
GETTIMEOFDAY(&xmt, NULL);
xmt.tv_sec += JAN_1970;
TEST_ASSERT_EQUAL(EXPECTED_PKTLEN,
generate_pkt(&testpkt, &xmt, testkey.key_id, &testkey));
TEST_ASSERT_EQUAL(LEAP_NOTINSYNC, PKT_LEAP(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(NTP_VERSION, PKT_VERSION(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(MODE_CLIENT, PKT_MODE(testpkt.li_vn_mode));
TEST_ASSERT_EQUAL(STRATUM_UNSPEC, PKT_TO_STRATUM(testpkt.stratum));
TEST_ASSERT_EQUAL(8, testpkt.ppoll);
TVTOTS(&xmt, &expected_xmt);
NTOHL_FP(&testpkt.xmt, &actual_xmt);
TEST_ASSERT_TRUE(LfpEquality(expected_xmt, actual_xmt));
TEST_ASSERT_EQUAL(testkey.key_id, ntohl(testpkt.exten[0]));
TEST_ASSERT_EQUAL(MAX_MD5_LEN - 4, /* Remove the key_id, only keep the mac. */
make_mac(&testpkt, LEN_PKT_NOMAC, MAX_MD5_LEN, &testkey, expected_mac));
TEST_ASSERT_EQUAL_MEMORY(expected_mac, (char*)&testpkt.exten[1], MAX_MD5_LEN -4);
}
void
test_OffsetCalculationPositiveOffset(void)
{
struct pkt rpkt;
l_fp reftime, tmp;
struct timeval dst;
double offset, precision, synch_distance;
rpkt.precision = -16; /* 0,000015259 */
rpkt.rootdelay = HTONS_FP(DTOUFP(0.125));
rpkt.rootdisp = HTONS_FP(DTOUFP(0.25));
/* Synch Distance: (0.125+0.25)/2.0 == 0.1875 */
get_systime(&reftime);
HTONL_FP(&reftime, &rpkt.reftime);
/* T1 - Originate timestamp */
tmp.l_ui = 1000000000UL;
tmp.l_uf = 0UL;
HTONL_FP(&tmp, &rpkt.org);
/* T2 - Receive timestamp */
tmp.l_ui = 1000000001UL;
tmp.l_uf = 2147483648UL;
HTONL_FP(&tmp, &rpkt.rec);
/* T3 - Transmit timestamp */
tmp.l_ui = 1000000002UL;
tmp.l_uf = 0UL;
HTONL_FP(&tmp, &rpkt.xmt);
/* T4 - Destination timestamp as standard timeval */
tmp.l_ui = 1000000001UL;
tmp.l_uf = 0UL;
TSTOTV(&tmp, &dst);
dst.tv_sec -= JAN_1970;
offset_calculation(&rpkt, LEN_PKT_NOMAC, &dst, &offset, &precision, &synch_distance);
TEST_ASSERT_EQUAL_DOUBLE(1.25, offset);
TEST_ASSERT_EQUAL_DOUBLE(1. / ULOGTOD(16), precision);
/* 1.1250150000000001 ? */
TEST_ASSERT_EQUAL_DOUBLE(1.125015, synch_distance);
}
void
test_OffsetCalculationNegativeOffset(void)
{
struct pkt rpkt;
l_fp reftime, tmp;
struct timeval dst;
double offset, precision, synch_distance;
rpkt.precision = -1;
rpkt.rootdelay = HTONS_FP(DTOUFP(0.5));
rpkt.rootdisp = HTONS_FP(DTOUFP(0.5));
/* Synch Distance is (0.5+0.5)/2.0, or 0.5 */
get_systime(&reftime);
HTONL_FP(&reftime, &rpkt.reftime);
/* T1 - Originate timestamp */
tmp.l_ui = 1000000001UL;
tmp.l_uf = 0UL;
HTONL_FP(&tmp, &rpkt.org);
/* T2 - Receive timestamp */
tmp.l_ui = 1000000000UL;
tmp.l_uf = 2147483648UL;
HTONL_FP(&tmp, &rpkt.rec);
/*/ T3 - Transmit timestamp */
tmp.l_ui = 1000000001UL;
tmp.l_uf = 2147483648UL;
HTONL_FP(&tmp, &rpkt.xmt);
/* T4 - Destination timestamp as standard timeval */
tmp.l_ui = 1000000003UL;
tmp.l_uf = 0UL;
TSTOTV(&tmp, &dst);
dst.tv_sec -= JAN_1970;
offset_calculation(&rpkt, LEN_PKT_NOMAC, &dst, &offset, &precision, &synch_distance);
TEST_ASSERT_EQUAL_DOUBLE(-1, offset);
TEST_ASSERT_EQUAL_DOUBLE(1. / ULOGTOD(1), precision);
TEST_ASSERT_EQUAL_DOUBLE(1.3333483333333334, synch_distance);
}
void
test_HandleUnusableServer(void)
{
struct pkt rpkt;
sockaddr_u host;
int rpktl;
ZERO(rpkt);
ZERO(host);
rpktl = SERVER_UNUSEABLE;
TEST_ASSERT_EQUAL(-1, handle_pkt(rpktl, &rpkt, &host, ""));
}
void
test_HandleUnusablePacket(void)
{
struct pkt rpkt;
sockaddr_u host;
int rpktl;
ZERO(rpkt);
ZERO(host);
rpktl = PACKET_UNUSEABLE;
TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, ""));
}
void
test_HandleServerAuthenticationFailure(void)
{
struct pkt rpkt;
sockaddr_u host;
int rpktl;
ZERO(rpkt);
ZERO(host);
rpktl = SERVER_AUTH_FAIL;
TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, ""));
}
void
test_HandleKodDemobilize(void)
{
static const char * HOSTNAME = "192.0.2.1";
static const char * REASON = "DENY";
struct pkt rpkt;
sockaddr_u host;
int rpktl;
struct kod_entry * entry;
rpktl = KOD_DEMOBILIZE;
ZERO(rpkt);
memcpy(&rpkt.refid, REASON, 4);
ZERO(host);
host.sa4.sin_family = AF_INET;
host.sa4.sin_addr.s_addr = inet_addr(HOSTNAME);
/* Test that the KOD-entry is added to the database. */
kod_init_kod_db("/dev/null", TRUE);
TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, HOSTNAME));
TEST_ASSERT_EQUAL(1, search_entry(HOSTNAME, &entry));
TEST_ASSERT_EQUAL_MEMORY(REASON, entry->type, 4);
}
void
test_HandleKodRate(void)
{
struct pkt rpkt;
sockaddr_u host;
int rpktl;
ZERO(rpkt);
ZERO(host);
rpktl = KOD_RATE;
TEST_ASSERT_EQUAL(1, handle_pkt(rpktl, &rpkt, &host, ""));
}
void
test_HandleCorrectPacket(void)
{
struct pkt rpkt;
sockaddr_u host;
int rpktl;
l_fp now;
/* We don't want our testing code to actually change the system clock. */
TEST_ASSERT_FALSE(ENABLED_OPT(STEP));
TEST_ASSERT_FALSE(ENABLED_OPT(SLEW));
get_systime(&now);
HTONL_FP(&now, &rpkt.reftime);
HTONL_FP(&now, &rpkt.org);
HTONL_FP(&now, &rpkt.rec);
HTONL_FP(&now, &rpkt.xmt);
rpktl = LEN_PKT_NOMAC;
ZERO(host);
AF(&host) = AF_INET;
TEST_ASSERT_EQUAL(0, handle_pkt(rpktl, &rpkt, &host, ""));
}
/* packetHandling.c */
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