/**
* \test Test the deallocation of app layer parser memory on occurance of
* error in the parsing process.
*/
static int AppLayerParserTest01(void)
{
AppLayerParserBackupParserTable();
int result = 0;
Flow *f = NULL;
uint8_t testbuf[] = { 0x11 };
uint32_t testlen = sizeof(testbuf);
TcpSession ssn;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&ssn, 0, sizeof(ssn));
/* Register the Test protocol state and parser functions */
AppLayerParserRegisterParser(IPPROTO_TCP, ALPROTO_TEST, STREAM_TOSERVER,
TestProtocolParser);
AppLayerParserRegisterStateFuncs(IPPROTO_TCP, ALPROTO_TEST,
TestProtocolStateAlloc, TestProtocolStateFree);
f = UTHBuildFlow(AF_INET, "1.2.3.4", "4.3.2.1", 20, 40);
if (f == NULL)
goto end;
f->protoctx = &ssn;
f->alproto = ALPROTO_TEST;
f->proto = IPPROTO_TCP;
StreamTcpInitConfig(TRUE);
FLOWLOCK_WRLOCK(f);
int r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_TEST,
STREAM_TOSERVER | STREAM_EOF, testbuf,
testlen);
if (r != -1) {
printf("returned %" PRId32 ", expected -1: ", r);
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
if (!(ssn.flags & STREAMTCP_FLAG_APP_LAYER_DISABLED)) {
printf("flag should have been set, but is not: ");
goto end;
}
result = 1;
end:
AppLayerParserRestoreParserTable();
StreamTcpFreeConfig(TRUE);
UTHFreeFlow(f);
return result;
}
/**
* \test Test the deallocation of app layer parser memory on occurance of
* error in the parsing process for UDP.
*/
static int AppLayerParserTest02(void)
{
AppLayerParserBackupParserTable();
int result = 1;
Flow *f = NULL;
uint8_t testbuf[] = { 0x11 };
uint32_t testlen = sizeof(testbuf);
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
/* Register the Test protocol state and parser functions */
AppLayerParserRegisterParser(IPPROTO_UDP, ALPROTO_TEST, STREAM_TOSERVER,
TestProtocolParser);
AppLayerParserRegisterStateFuncs(IPPROTO_UDP, ALPROTO_TEST,
TestProtocolStateAlloc, TestProtocolStateFree);
f = UTHBuildFlow(AF_INET, "1.2.3.4", "4.3.2.1", 20, 40);
if (f == NULL)
goto end;
f->alproto = ALPROTO_TEST;
f->proto = IPPROTO_UDP;
f->protomap = FlowGetProtoMapping(f->proto);
StreamTcpInitConfig(TRUE);
FLOWLOCK_WRLOCK(f);
int r = AppLayerParserParse(NULL, alp_tctx, f, ALPROTO_TEST,
STREAM_TOSERVER | STREAM_EOF, testbuf,
testlen);
if (r != -1) {
printf("returned %" PRId32 ", expected -1: \n", r);
result = 0;
FLOWLOCK_UNLOCK(f);
goto end;
}
FLOWLOCK_UNLOCK(f);
end:
AppLayerParserRestoreParserTable();
StreamTcpFreeConfig(TRUE);
UTHFreeFlow(f);
return result;
}
/**
* \test Test matching on a simple google.com SNI with pcre
*/
static int DetectTlsSniTest02(void)
{
/* client hello */
uint8_t buf[] = { 0x16, 0x03, 0x03, 0x00, 0x82, 0x01, 0x00, 0x00, 0x7E,
0x03, 0x03, 0x57, 0x04, 0x9F, 0x5D, 0xC9, 0x5C, 0x87,
0xAE, 0xF2, 0xA7, 0x4A, 0xFC, 0x59, 0x78, 0x23, 0x31,
0x61, 0x2D, 0x29, 0x92, 0xB6, 0x70, 0xA5, 0xA1, 0xFC,
0x0E, 0x79, 0xFE, 0xC3, 0x97, 0x37, 0xC0, 0x00, 0x00,
0x44, 0x00, 0x04, 0x00, 0x05, 0x00, 0x0A, 0x00, 0x0D,
0x00, 0x10, 0x00, 0x13, 0x00, 0x16, 0x00, 0x2F, 0x00,
0x30, 0x00, 0x31, 0x00, 0x32, 0x00, 0x33, 0x00, 0x35,
0x00, 0x36, 0x00, 0x37, 0x00, 0x38, 0x00, 0x39, 0x00,
0x3C, 0x00, 0x3D, 0x00, 0x3E, 0x00, 0x3F, 0x00, 0x40,
0x00, 0x41, 0x00, 0x44, 0x00, 0x45, 0x00, 0x66, 0x00,
0x67, 0x00, 0x68, 0x00, 0x69, 0x00, 0x6A, 0x00, 0x6B,
0x00, 0x84, 0x00, 0x87, 0x00, 0xFF, 0x01, 0x00, 0x00,
0x13, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x0D, 0x00, 0x00,
0x0A, 0x67, 0x6F, 0x6F, 0x67, 0x6C, 0x65, 0x2E, 0x63,
0x6F, 0x6D, };
Flow f;
SSLState *ssl_state = NULL;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars tv;
DetectEngineThreadCtx *det_ctx = NULL;
TcpSession ssn;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&tv, 0, sizeof(ThreadVars));
memset(&f, 0, sizeof(Flow));
memset(&ssn, 0, sizeof(TcpSession));
p = UTHBuildPacketReal(buf, sizeof(buf), IPPROTO_TCP,
"192.168.1.5", "192.168.1.1",
41424, 443);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.flags |= FLOW_IPV4;
f.proto = IPPROTO_TCP;
f.protomap = FlowGetProtoMapping(f.proto);
p->flow = &f;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p->flowflags |= FLOW_PKT_TOSERVER|FLOW_PKT_ESTABLISHED;
f.alproto = ALPROTO_TLS;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL(de_ctx);
de_ctx->mpm_matcher = DEFAULT_MPM;
de_ctx->flags |= DE_QUIET;
s = DetectEngineAppendSig(de_ctx, "alert tls any any -> any any "
"(msg:\"Test tls_sni option\"; "
"tls_sni; content:\"google\"; nocase; "
"pcre:\"/google\\.com$/i\"; sid:1;)");
FAIL_IF_NULL(s);
s = DetectEngineAppendSig(de_ctx, "alert tls any any -> any any "
"(msg:\"Test tls_sni option\"; "
"tls_sni; content:\"google\"; nocase; "
"pcre:\"/^\\.[a-z]{2,3}$/iR\"; sid:2;)");
FAIL_IF_NULL(s);
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS,
STREAM_TOSERVER, buf, sizeof(buf));
FLOWLOCK_UNLOCK(&f);
FAIL_IF(r != 0);
ssl_state = f.alstate;
FAIL_IF_NULL(ssl_state);
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p);
FAIL_IF_NOT(PacketAlertCheck(p, 1));
FAIL_IF_NOT(PacketAlertCheck(p, 2));
AppLayerParserThreadCtxFree(alp_tctx);
DetectEngineThreadCtxDeinit(&tv, det_ctx);
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePacket(p);
PASS;
}
/**
* \test Test a valid dce_iface entry for a bind and bind_ack
*/
static int DetectSslStateTest07(void)
{
uint8_t chello_buf[] = {
0x80, 0x67, 0x01, 0x03, 0x00, 0x00, 0x4e, 0x00,
0x00, 0x00, 0x10, 0x01, 0x00, 0x80, 0x03, 0x00,
0x80, 0x07, 0x00, 0xc0, 0x06, 0x00, 0x40, 0x02,
0x00, 0x80, 0x04, 0x00, 0x80, 0x00, 0x00, 0x39,
0x00, 0x00, 0x38, 0x00, 0x00, 0x35, 0x00, 0x00,
0x33, 0x00, 0x00, 0x32, 0x00, 0x00, 0x04, 0x00,
0x00, 0x05, 0x00, 0x00, 0x2f, 0x00, 0x00, 0x16,
0x00, 0x00, 0x13, 0x00, 0xfe, 0xff, 0x00, 0x00,
0x0a, 0x00, 0x00, 0x15, 0x00, 0x00, 0x12, 0x00,
0xfe, 0xfe, 0x00, 0x00, 0x09, 0x00, 0x00, 0x64,
0x00, 0x00, 0x62, 0x00, 0x00, 0x03, 0x00, 0x00,
0x06, 0xa8, 0xb8, 0x93, 0xbb, 0x90, 0xe9, 0x2a,
0xa2, 0x4d, 0x6d, 0xcc, 0x1c, 0xe7, 0x2a, 0x80,
0x21
};
uint32_t chello_buf_len = sizeof(chello_buf);
uint8_t shello_buf[] = {
0x16, 0x03, 0x00, 0x00, 0x4a, 0x02,
0x00, 0x00, 0x46, 0x03, 0x00, 0x44, 0x4c, 0x94,
0x8f, 0xfe, 0x81, 0xed, 0x93, 0x65, 0x02, 0x88,
0xa3, 0xf8, 0xeb, 0x63, 0x86, 0x0e, 0x2c, 0xf6,
0x8d, 0xd0, 0x0f, 0x2c, 0x2a, 0xd6, 0x4f, 0xcd,
0x2d, 0x3c, 0x16, 0xd7, 0xd6, 0x20, 0xa0, 0xfb,
0x60, 0x86, 0x3d, 0x1e, 0x76, 0xf3, 0x30, 0xfe,
0x0b, 0x01, 0xfd, 0x1a, 0x01, 0xed, 0x95, 0xf6,
0x7b, 0x8e, 0xc0, 0xd4, 0x27, 0xbf, 0xf0, 0x6e,
0xc7, 0x56, 0xb1, 0x47, 0xce, 0x98, 0x00, 0x35,
0x00, 0x16, 0x03, 0x00, 0x03, 0x44, 0x0b, 0x00,
0x03, 0x40, 0x00, 0x03, 0x3d, 0x00, 0x03, 0x3a,
0x30, 0x82, 0x03, 0x36, 0x30, 0x82, 0x02, 0x9f,
0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x01, 0x01,
0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
0xf7, 0x0d, 0x01, 0x01, 0x04, 0x05, 0x00, 0x30,
0x81, 0xa9, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03,
0x55, 0x04, 0x06, 0x13, 0x02, 0x58, 0x59, 0x31,
0x15, 0x30, 0x13, 0x06, 0x03, 0x55, 0x04, 0x08,
0x13, 0x0c, 0x53, 0x6e, 0x61, 0x6b, 0x65, 0x20,
0x44, 0x65, 0x73, 0x65, 0x72, 0x74, 0x31, 0x13,
0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13,
0x0a, 0x53, 0x6e, 0x61, 0x6b, 0x65, 0x20, 0x54,
0x6f, 0x77, 0x6e, 0x31, 0x17, 0x30, 0x15, 0x06,
0x03, 0x55, 0x04, 0x0a, 0x13, 0x0e, 0x53, 0x6e,
0x61, 0x6b, 0x65, 0x20, 0x4f, 0x69, 0x6c, 0x2c,
0x20, 0x4c, 0x74, 0x64, 0x31, 0x1e, 0x30, 0x1c,
0x06, 0x03, 0x55, 0x04, 0x0b, 0x13, 0x15, 0x43,
0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61,
0x74, 0x65, 0x20, 0x41, 0x75, 0x74, 0x68, 0x6f,
0x72, 0x69, 0x74, 0x79, 0x31, 0x15, 0x30, 0x13,
0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x0c, 0x53,
0x6e, 0x61, 0x6b, 0x65, 0x20, 0x4f, 0x69, 0x6c,
0x20, 0x43, 0x41, 0x31, 0x1e, 0x30, 0x1c, 0x06,
0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
0x09, 0x01, 0x16, 0x0f, 0x63, 0x61, 0x40, 0x73,
0x6e, 0x61, 0x6b, 0x65, 0x6f, 0x69, 0x6c, 0x2e,
0x64, 0x6f, 0x6d, 0x30, 0x1e, 0x17, 0x0d, 0x30,
0x33, 0x30, 0x33, 0x30, 0x35, 0x31, 0x36, 0x34,
0x37, 0x34, 0x35, 0x5a, 0x17, 0x0d, 0x30, 0x38,
0x30, 0x33, 0x30, 0x33, 0x31, 0x36, 0x34, 0x37,
0x34, 0x35, 0x5a, 0x30, 0x81, 0xa7, 0x31, 0x0b,
0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13,
0x02, 0x58, 0x59, 0x31, 0x15, 0x30, 0x13, 0x06,
0x03, 0x55, 0x04, 0x08, 0x13, 0x0c, 0x53, 0x6e,
0x61, 0x6b, 0x65, 0x20, 0x44, 0x65, 0x73, 0x65,
0x72, 0x74, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03,
0x55, 0x04, 0x07, 0x13, 0x0a, 0x53, 0x6e, 0x61,
0x6b, 0x65, 0x20, 0x54, 0x6f, 0x77, 0x6e, 0x31,
0x17, 0x30, 0x15, 0x06, 0x03, 0x55, 0x04, 0x0a,
0x13, 0x0e, 0x53, 0x6e, 0x61, 0x6b, 0x65, 0x20,
0x4f, 0x69, 0x6c, 0x2c, 0x20, 0x4c, 0x74, 0x64,
0x31, 0x17, 0x30, 0x15, 0x06, 0x03, 0x55, 0x04,
0x0b, 0x13, 0x0e, 0x57, 0x65, 0x62, 0x73, 0x65,
0x72, 0x76, 0x65, 0x72, 0x20, 0x54, 0x65, 0x61,
0x6d, 0x31, 0x19, 0x30, 0x17, 0x06, 0x03, 0x55,
0x04, 0x03, 0x13, 0x10, 0x77, 0x77, 0x77, 0x2e,
0x73, 0x6e, 0x61, 0x6b, 0x65, 0x6f, 0x69, 0x6c,
0x2e, 0x64, 0x6f, 0x6d, 0x31, 0x1f, 0x30, 0x1d,
0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d,
0x01, 0x09, 0x01, 0x16, 0x10, 0x77, 0x77, 0x77,
0x40, 0x73, 0x6e, 0x61, 0x6b, 0x65, 0x6f, 0x69,
0x6c, 0x2e, 0x64, 0x6f, 0x6d, 0x30, 0x81, 0x9f,
0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03,
0x81, 0x8d, 0x00, 0x30, 0x81, 0x89, 0x02, 0x81,
0x81, 0x00, 0xa4, 0x6e, 0x53, 0x14, 0x0a, 0xde,
0x2c, 0xe3, 0x60, 0x55, 0x9a, 0xf2, 0x42, 0xa6,
0xaf, 0x47, 0x12, 0x2f, 0x17, 0xce, 0xfa, 0xba,
0xdc, 0x4e, 0x63, 0x56, 0x34, 0xb9, 0xba, 0x73,
0x4b, 0x78, 0x44, 0x3d, 0xc6, 0x6c, 0x69, 0xa4,
0x25, 0xb3, 0x61, 0x02, 0x9d, 0x09, 0x04, 0x3f,
0x72, 0x3d, 0xd8, 0x27, 0xd3, 0xb0, 0x5a, 0x45,
0x77, 0xb7, 0x36, 0xe4, 0x26, 0x23, 0xcc, 0x12,
0xb8, 0xae, 0xde, 0xa7, 0xb6, 0x3a, 0x82, 0x3c,
0x7c, 0x24, 0x59, 0x0a, 0xf8, 0x96, 0x43, 0x8b,
0xa3, 0x29, 0x36, 0x3f, 0x91, 0x7f, 0x5d, 0xc7,
0x23, 0x94, 0x29, 0x7f, 0x0a, 0xce, 0x0a, 0xbd,
0x8d, 0x9b, 0x2f, 0x19, 0x17, 0xaa, 0xd5, 0x8e,
0xec, 0x66, 0xa2, 0x37, 0xeb, 0x3f, 0x57, 0x53,
0x3c, 0xf2, 0xaa, 0xbb, 0x79, 0x19, 0x4b, 0x90,
0x7e, 0xa7, 0xa3, 0x99, 0xfe, 0x84, 0x4c, 0x89,
0xf0, 0x3d, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3,
0x6e, 0x30, 0x6c, 0x30, 0x1b, 0x06, 0x03, 0x55,
0x1d, 0x11, 0x04, 0x14, 0x30, 0x12, 0x81, 0x10,
0x77, 0x77, 0x77, 0x40, 0x73, 0x6e, 0x61, 0x6b,
0x65, 0x6f, 0x69, 0x6c, 0x2e, 0x64, 0x6f, 0x6d,
0x30, 0x3a, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01,
0x86, 0xf8, 0x42, 0x01, 0x0d, 0x04, 0x2d, 0x16,
0x2b, 0x6d, 0x6f, 0x64, 0x5f, 0x73, 0x73, 0x6c,
0x20, 0x67, 0x65, 0x6e, 0x65, 0x72, 0x61, 0x74,
0x65, 0x64, 0x20, 0x63, 0x75, 0x73, 0x74, 0x6f,
0x6d, 0x20, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72,
0x20, 0x63, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69,
0x63, 0x61, 0x74, 0x65, 0x30, 0x11, 0x06, 0x09,
0x60, 0x86, 0x48, 0x01, 0x86, 0xf8, 0x42, 0x01,
0x01, 0x04, 0x04, 0x03, 0x02, 0x06, 0x40, 0x30,
0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
0x0d, 0x01, 0x01, 0x04, 0x05, 0x00, 0x03, 0x81,
0x81, 0x00, 0xae, 0x79, 0x79, 0x22, 0x90, 0x75,
0xfd, 0xa6, 0xd5, 0xc4, 0xb8, 0xc4, 0x99, 0x4e,
0x1c, 0x05, 0x7c, 0x91, 0x59, 0xbe, 0x89, 0x0d,
0x3d, 0xc6, 0x8c, 0xa3, 0xcf, 0xf6, 0xba, 0x23,
0xdf, 0xb8, 0xae, 0x44, 0x68, 0x8a, 0x8f, 0xb9,
0x8b, 0xcb, 0x12, 0xda, 0xe6, 0xa2, 0xca, 0xa5,
0xa6, 0x55, 0xd9, 0xd2, 0xa1, 0xad, 0xba, 0x9b,
0x2c, 0x44, 0x95, 0x1d, 0x4a, 0x90, 0x59, 0x7f,
0x83, 0xae, 0x81, 0x5e, 0x3f, 0x92, 0xe0, 0x14,
0x41, 0x82, 0x4e, 0x7f, 0x53, 0xfd, 0x10, 0x23,
0xeb, 0x8a, 0xeb, 0xe9, 0x92, 0xea, 0x61, 0xf2,
0x8e, 0x19, 0xa1, 0xd3, 0x49, 0xc0, 0x84, 0x34,
0x1e, 0x2e, 0x6e, 0xf6, 0x98, 0xe2, 0x87, 0x53,
0xd6, 0x55, 0xd9, 0x1a, 0x8a, 0x92, 0x5c, 0xad,
0xdc, 0x1e, 0x1c, 0x30, 0xa7, 0x65, 0x9d, 0xc2,
0x4f, 0x60, 0xd2, 0x6f, 0xdb, 0xe0, 0x9f, 0x9e,
0xbc, 0x41, 0x16, 0x03, 0x00, 0x00, 0x04, 0x0e,
0x00, 0x00, 0x00
};
uint32_t shello_buf_len = sizeof(shello_buf);
uint8_t client_change_cipher_spec_buf[] = {
0x16, 0x03, 0x00, 0x00, 0x84, 0x10, 0x00, 0x00,
0x80, 0x65, 0x51, 0x2d, 0xa6, 0xd4, 0xa7, 0x38,
0xdf, 0xac, 0x79, 0x1f, 0x0b, 0xd9, 0xb2, 0x61,
0x7d, 0x73, 0x88, 0x32, 0xd9, 0xf2, 0x62, 0x3a,
0x8b, 0x11, 0x04, 0x75, 0xca, 0x42, 0xff, 0x4e,
0xd9, 0xcc, 0xb9, 0xfa, 0x86, 0xf3, 0x16, 0x2f,
0x09, 0x73, 0x51, 0x66, 0xaa, 0x29, 0xcd, 0x80,
0x61, 0x0f, 0xe8, 0x13, 0xce, 0x5b, 0x8e, 0x0a,
0x23, 0xf8, 0x91, 0x5e, 0x5f, 0x54, 0x70, 0x80,
0x8e, 0x7b, 0x28, 0xef, 0xb6, 0x69, 0xb2, 0x59,
0x85, 0x74, 0x98, 0xe2, 0x7e, 0xd8, 0xcc, 0x76,
0x80, 0xe1, 0xb6, 0x45, 0x4d, 0xc7, 0xcd, 0x84,
0xce, 0xb4, 0x52, 0x79, 0x74, 0xcd, 0xe6, 0xd7,
0xd1, 0x9c, 0xad, 0xef, 0x63, 0x6c, 0x0f, 0xf7,
0x05, 0xe4, 0x4d, 0x1a, 0xd3, 0xcb, 0x9c, 0xd2,
0x51, 0xb5, 0x61, 0xcb, 0xff, 0x7c, 0xee, 0xc7,
0xbc, 0x5e, 0x15, 0xa3, 0xf2, 0x52, 0x0f, 0xbb,
0x32, 0x14, 0x03, 0x00, 0x00, 0x01, 0x01, 0x16,
0x03, 0x00, 0x00, 0x40, 0xa9, 0xd8, 0xd7, 0x35,
0xbc, 0x39, 0x56, 0x98, 0xad, 0x87, 0x61, 0x2a,
0xc4, 0x8f, 0xcc, 0x03, 0xcb, 0x93, 0x80, 0x81,
0xb0, 0x4a, 0xc4, 0xd2, 0x09, 0x71, 0x3e, 0x90,
0x3c, 0x8d, 0xe0, 0x95, 0x44, 0xfe, 0x56, 0xd1,
0x7e, 0x88, 0xe2, 0x48, 0xfd, 0x76, 0x70, 0x76,
0xe2, 0xcd, 0x06, 0xd0, 0xf3, 0x9d, 0x13, 0x79,
0x67, 0x1e, 0x37, 0xf6, 0x98, 0xbe, 0x59, 0x18,
0x4c, 0xfc, 0x75, 0x56
};
uint32_t client_change_cipher_spec_buf_len =
sizeof(client_change_cipher_spec_buf);
uint8_t server_change_cipher_spec_buf[] = {
0x14, 0x03, 0x00, 0x00, 0x01, 0x01, 0x16, 0x03,
0x00, 0x00, 0x40, 0xce, 0x7c, 0x92, 0x43, 0x59,
0xcc, 0x3d, 0x90, 0x91, 0x9c, 0x58, 0xf0, 0x7a,
0xce, 0xae, 0x0d, 0x08, 0xe0, 0x76, 0xb4, 0x86,
0xb1, 0x15, 0x5b, 0x32, 0xb8, 0x77, 0x53, 0xe7,
0xa6, 0xf9, 0xd0, 0x95, 0x5f, 0xaa, 0x07, 0xc3,
0x96, 0x7c, 0xc9, 0x88, 0xc2, 0x7a, 0x20, 0x89,
0x4f, 0xeb, 0xeb, 0xb6, 0x19, 0xef, 0xaa, 0x27,
0x73, 0x9d, 0xa6, 0xb4, 0x9f, 0xeb, 0x34, 0xe2,
0x4d, 0x9f, 0x6b
};
uint32_t server_change_cipher_spec_buf_len =
sizeof(server_change_cipher_spec_buf);
uint8_t toserver_app_data_buf[] = {
0x17, 0x03, 0x00, 0x01, 0xb0, 0x4a, 0xc3, 0x3e,
0x9d, 0x77, 0x78, 0x01, 0x2c, 0xb4, 0xbc, 0x4c,
0x9a, 0x84, 0xd7, 0xb9, 0x90, 0x0c, 0x21, 0x10,
0xf0, 0xfa, 0x00, 0x7c, 0x16, 0xbb, 0x77, 0xfb,
0x72, 0x42, 0x4f, 0xad, 0x50, 0x4a, 0xd0, 0xaa,
0x6f, 0xaa, 0x44, 0x6c, 0x62, 0x94, 0x1b, 0xc5,
0xfe, 0xe9, 0x1c, 0x5e, 0xde, 0x85, 0x0b, 0x0e,
0x05, 0xe4, 0x18, 0x6e, 0xd2, 0xd3, 0xb5, 0x20,
0xab, 0x81, 0xfd, 0x18, 0x9a, 0x73, 0xb8, 0xd7,
0xef, 0xc3, 0xdd, 0x74, 0xd7, 0x9c, 0x1e, 0x6f,
0x21, 0x6d, 0xf8, 0x24, 0xca, 0x3c, 0x70, 0x78,
0x36, 0x12, 0x7a, 0x8a, 0x9c, 0xac, 0x4e, 0x1c,
0xa8, 0xfb, 0x27, 0x30, 0xba, 0x9a, 0xf4, 0x2f,
0x0a, 0xab, 0x80, 0x6a, 0xa1, 0x60, 0x74, 0xf0,
0xe3, 0x91, 0x84, 0xe7, 0x90, 0x88, 0xcc, 0xf0,
0x95, 0x7b, 0x0a, 0x22, 0xf2, 0xf9, 0x27, 0xe0,
0xdd, 0x38, 0x0c, 0xfd, 0xe9, 0x03, 0x71, 0xdc,
0x70, 0xa4, 0x6e, 0xdf, 0xe3, 0x72, 0x9e, 0xa1,
0xf0, 0xc9, 0x00, 0xd6, 0x03, 0x55, 0x6a, 0x67,
0x5d, 0x9c, 0xb8, 0x75, 0x01, 0xb0, 0x01, 0x9f,
0xe6, 0xd2, 0x44, 0x18, 0xbc, 0xca, 0x7a, 0x10,
0x39, 0xa6, 0xcf, 0x15, 0xc7, 0xf5, 0x35, 0xd4,
0xb3, 0x6d, 0x91, 0x23, 0x84, 0x99, 0xba, 0xb0,
0x7e, 0xd0, 0xc9, 0x4c, 0xbf, 0x3f, 0x33, 0x68,
0x37, 0xb7, 0x7d, 0x44, 0xb0, 0x0b, 0x2c, 0x0f,
0xd0, 0x75, 0xa2, 0x6b, 0x5b, 0xe1, 0x9f, 0xd4,
0x69, 0x9a, 0x14, 0xc8, 0x29, 0xb7, 0xd9, 0x10,
0xbb, 0x99, 0x30, 0x9a, 0xfb, 0xcc, 0x13, 0x1f,
0x76, 0x4e, 0xe6, 0xdf, 0x14, 0xaa, 0xd5, 0x60,
0xbf, 0x91, 0x49, 0x0d, 0x64, 0x42, 0x29, 0xa8,
0x64, 0x27, 0xd4, 0x5e, 0x1b, 0x18, 0x03, 0xa8,
0x73, 0xd6, 0x05, 0x6e, 0xf7, 0x50, 0xb0, 0x09,
0x6b, 0x69, 0x7a, 0x12, 0x28, 0x58, 0xef, 0x5a,
0x86, 0x11, 0xde, 0x71, 0x71, 0x9f, 0xca, 0xbd,
0x79, 0x2a, 0xc2, 0xe5, 0x9b, 0x5e, 0x32, 0xe7,
0xcb, 0x97, 0x6e, 0xa0, 0xea, 0xa4, 0xa4, 0x6a,
0x32, 0xf9, 0x37, 0x39, 0xd8, 0x37, 0x6d, 0x63,
0xf3, 0x08, 0x1c, 0xdd, 0x06, 0xdd, 0x2c, 0x2b,
0x9f, 0x04, 0x88, 0x5f, 0x36, 0x42, 0xc1, 0xb1,
0xc7, 0xe8, 0x2d, 0x5d, 0xa4, 0x6c, 0xe5, 0x60,
0x94, 0xae, 0xd0, 0x90, 0x1e, 0x88, 0xa0, 0x87,
0x52, 0xfb, 0xed, 0x97, 0xa5, 0x25, 0x5a, 0xb7,
0x55, 0xc5, 0x13, 0x07, 0x85, 0x27, 0x40, 0xed,
0xb8, 0xa0, 0x26, 0x13, 0x44, 0x0c, 0xfc, 0xcc,
0x5a, 0x09, 0xe5, 0x44, 0xb5, 0x63, 0xa1, 0x43,
0x51, 0x23, 0x4f, 0x17, 0x21, 0x89, 0x2e, 0x58,
0xfd, 0xf9, 0x63, 0x74, 0x04, 0x70, 0x1e, 0x7d,
0xd0, 0x66, 0xba, 0x40, 0x5e, 0x45, 0xdc, 0x39,
0x7c, 0x53, 0x0f, 0xa8, 0x38, 0xb2, 0x13, 0x99,
0x27, 0xd9, 0x4a, 0x51, 0xe9, 0x9f, 0x2a, 0x92,
0xbb, 0x9c, 0x90, 0xab, 0xfd, 0xf1, 0xb7, 0x40,
0x05, 0xa9, 0x7a, 0x20, 0x63, 0x36, 0xc1, 0xef,
0xb9, 0xad, 0xa2, 0xe0, 0x1d, 0x20, 0x4f, 0xb2,
0x34, 0xbd, 0xea, 0x07, 0xac, 0x21, 0xce, 0xf6,
0x8a, 0xa2, 0x9e, 0xcd, 0xfa
};
uint32_t toserver_app_data_buf_len = sizeof(toserver_app_data_buf);
Signature *s = NULL;
ThreadVars th_v;
Packet *p = NULL;
Flow f;
TcpSession ssn;
DetectEngineThreadCtx *det_ctx = NULL;
DetectEngineCtx *de_ctx = NULL;
SSLState *ssl_state = NULL;
int r = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&p, 0, sizeof(p));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
p->flow = &f;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
f.alproto = ALPROTO_TLS;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL(de_ctx);
de_ctx->flags |= DE_QUIET;
s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any "
"(msg:\"ssl state\"; ssl_state:client_hello; "
"sid:1;)");
FAIL_IF_NULL(s);
s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any "
"(msg:\"ssl state\"; "
"ssl_state:server_hello; "
"sid:2;)");
FAIL_IF_NULL(s);
s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any "
"(msg:\"ssl state\"; "
"ssl_state:client_keyx; "
"sid:3;)");
FAIL_IF_NULL(s);
s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any "
"(msg:\"ssl state\"; "
"ssl_state:server_keyx; "
"sid:4;)");
FAIL_IF_NULL(s);
s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any "
"(msg:\"ssl state\"; "
"ssl_state:!client_hello; "
"sid:5;)");
FAIL_IF_NULL(s);
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS,
STREAM_TOSERVER | STREAM_START, chello_buf,
chello_buf_len);
FAIL_IF(r != 0);
FLOWLOCK_UNLOCK(&f);
ssl_state = f.alstate;
FAIL_IF(ssl_state == NULL);
/* do detect */
p->alerts.cnt = 0;
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
FAIL_IF(!PacketAlertCheck(p, 1));
FAIL_IF(PacketAlertCheck(p, 2));
FAIL_IF(PacketAlertCheck(p, 3));
FAIL_IF(PacketAlertCheck(p, 4));
FAIL_IF(PacketAlertCheck(p, 5));
FLOWLOCK_WRLOCK(&f);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOCLIENT,
shello_buf, shello_buf_len);
FAIL_IF(r != 0);
FLOWLOCK_UNLOCK(&f);
/* do detect */
p->alerts.cnt = 0;
p->flowflags = (FLOW_PKT_TOCLIENT | FLOW_PKT_ESTABLISHED);
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
FAIL_IF(PacketAlertCheck(p, 1));
FAIL_IF(!PacketAlertCheck(p, 2));
FAIL_IF(PacketAlertCheck(p, 3));
FAIL_IF(PacketAlertCheck(p, 4));
FAIL_IF(!PacketAlertCheck(p, 5));
PASS;
FLOWLOCK_WRLOCK(&f);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER,
client_change_cipher_spec_buf,
client_change_cipher_spec_buf_len);
FAIL_IF(r != 0);
FLOWLOCK_UNLOCK(&f);
/* do detect */
p->alerts.cnt = 0;
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
FAIL_IF(PacketAlertCheck(p, 1));
FAIL_IF(PacketAlertCheck(p, 2));
FAIL_IF(!PacketAlertCheck(p, 3));
FAIL_IF(PacketAlertCheck(p, 4));
FLOWLOCK_WRLOCK(&f);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOCLIENT,
server_change_cipher_spec_buf,
server_change_cipher_spec_buf_len);
FAIL_IF(r != 0);
FLOWLOCK_UNLOCK(&f);
/* do detect */
p->alerts.cnt = 0;
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
FAIL_IF(PacketAlertCheck(p, 1));
FAIL_IF(PacketAlertCheck(p, 2));
FAIL_IF(PacketAlertCheck(p, 3));
FAIL_IF(PacketAlertCheck(p, 4));
FLOWLOCK_WRLOCK(&f);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER,
toserver_app_data_buf, toserver_app_data_buf_len);
FAIL_IF(r != 0);
FLOWLOCK_UNLOCK(&f);
/* do detect */
p->alerts.cnt = 0;
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
FAIL_IF(PacketAlertCheck(p, 1));
FAIL_IF(PacketAlertCheck(p, 2));
FAIL_IF(PacketAlertCheck(p, 3));
FAIL_IF(PacketAlertCheck(p, 4));
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
PASS;
}
/** \test Send a get request in three chunks + more data. */
static int DetectSshVersionTestDetect01(void)
{
Flow f;
uint8_t sshbuf1[] = "SSH-1.";
uint32_t sshlen1 = sizeof(sshbuf1) - 1;
uint8_t sshbuf2[] = "10-PuTTY_2.123" ;
uint32_t sshlen2 = sizeof(sshbuf2) - 1;
uint8_t sshbuf3[] = "\n";
uint32_t sshlen3 = sizeof(sshbuf3) - 1;
uint8_t sshbuf4[] = "whatever...";
uint32_t sshlen4 = sizeof(sshbuf4) - 1;
TcpSession ssn;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FAIL_IF_NULL(p);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_SSH;
f.proto = IPPROTO_TCP;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL (de_ctx);
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx,"alert ssh any any -> any any (msg:\"SSH\"; ssh.protoversion:1.10; sid:1;)");
FAIL_IF_NULL(s);
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCLogDebug("==> 1");
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_SSH,
STREAM_TOSERVER, sshbuf1, sshlen1);
FAIL_IF(r != 0);
SCLogDebug("==> 2");
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER,
sshbuf2, sshlen2);
FAIL_IF(r != 0);
SCLogDebug("==> 3");
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER,
sshbuf3, sshlen3);
FAIL_IF(r != 0);
SCLogDebug("==> 4");
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER,
sshbuf4, sshlen4);
FAIL_IF(r != 0);
SshState *ssh_state = f.alstate;
FAIL_IF_NULL(ssh_state);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
FAIL_IF(!(PacketAlertCheck(p, 1)));
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
AppLayerParserThreadCtxFree(alp_tctx);
PASS;
}
/** \test Check a signature with an request method and negation of the same */
static int DetectHttpMethodSigTest04(void)
{
int result = 0;
Flow f;
uint8_t httpbuf1[] = "GET / HTTP/1.0\r\n"
"Host: foo.bar.tld\r\n"
"\r\n";
uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */
TcpSession ssn;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx,
"alert tcp any any -> any any (msg:\"Testing http_method\"; "
"content:\"GET\"; http_method; sid:1;)");
if (s == NULL) {
goto end;
}
s = s->next = SigInit(de_ctx,
"alert tcp any any -> any any (msg:\"Testing http_method\"; "
"content:!\"GET\"; http_method; sid:2;)");
if (s == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1);
if (r != 0) {
SCLogDebug("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
SCLogDebug("no http state: ");
goto end;
}
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
if (PacketAlertCheck(p, 2)) {
printf("sid 2 matched but shouldn't have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL) {
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
}
if (det_ctx != NULL) {
DetectEngineThreadCtxDeinit(&th_v, (void *) det_ctx);
}
if (de_ctx != NULL) {
DetectEngineCtxFree(de_ctx);
}
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
static int DetectTlsVersionTestDetect03(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
Flow f;
uint8_t tlsbuf1[] = { 0x16 };
uint32_t tlslen1 = sizeof(tlsbuf1);
uint8_t tlsbuf2[] = { 0x03 };
uint32_t tlslen2 = sizeof(tlsbuf2);
uint8_t tlsbuf3[] = { 0x01 };
uint32_t tlslen3 = sizeof(tlsbuf3);
uint8_t tlsbuf4[] = { 0x01, 0x00, 0x00, 0xad, 0x03, 0x02 };
uint32_t tlslen4 = sizeof(tlsbuf4);
TcpSession ssn;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
p->tcph->th_seq = htonl(1000);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_TLS;
f.proto = p->proto;
StreamTcpInitConfig(TRUE);
StreamMsg *stream_msg = StreamMsgGetFromPool();
if (stream_msg == NULL) {
printf("no stream_msg: ");
goto end;
}
memcpy(stream_msg->data, tlsbuf4, tlslen4);
stream_msg->data_len = tlslen4;
ssn.toserver_smsg_head = stream_msg;
ssn.toserver_smsg_tail = stream_msg;
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx,"alert tcp any any -> any any (msg:\"TLS\"; tls.version:1.0; content:\"|01 00 00 AD|\"; sid:1;)");
if (s == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER, tlsbuf1, tlslen1);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER, tlsbuf2, tlslen2);
if (r != 0) {
printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER, tlsbuf3, tlslen3);
if (r != 0) {
printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER, tlsbuf4, tlslen4);
if (r != 0) {
printf("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
SSLState *ssl_state = f.alstate;
if (ssl_state == NULL) {
printf("no tls state: ");
goto end;
}
if (ssl_state->client_connp.content_type != 0x16) {
printf("expected content_type %" PRIu8 ", got %" PRIu8 ": ",
0x16, ssl_state->client_connp.content_type);
goto end;
}
if (ssl_state->client_connp.version != TLS_VERSION_10) {
printf("expected version %04" PRIu16 ", got %04" PRIu16 ": ",
TLS_VERSION_10, ssl_state->client_connp.version);
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("signature 1 didn't match while it should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL) {
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
DetectEngineCtxFree(de_ctx);
}
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
/**
* \test Check the signature working to alert against set-cookie
*/
static int DetectHttpCookieSigTest08(void)
{
int result = 0;
Flow f;
uint8_t httpbuf_request[] =
"GET / HTTP/1.1\r\n"
"User-Agent: Mozilla/1.0\r\n"
"\r\n";
uint32_t httpbuf_request_len = sizeof(httpbuf_request) - 1; /* minus the \0 */
uint8_t httpbuf_response[] =
"HTTP/1.1 200 OK\r\n"
"Set-Cookie: response_user_agent\r\n"
"\r\n";
uint32_t httpbuf_response_len = sizeof(httpbuf_response) - 1; /* minus the \0 */
TcpSession ssn;
Packet *p1 = NULL, *p2 = NULL;
Signature *s = NULL;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
f.alproto = ALPROTO_HTTP;
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
p1->flow = &f;
p1->flowflags |= FLOW_PKT_TOSERVER;
p1->flowflags |= FLOW_PKT_ESTABLISHED;
p1->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
p2->flow = &f;
p2->flowflags |= FLOW_PKT_TOCLIENT;
p2->flowflags |= FLOW_PKT_ESTABLISHED;
p2->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(flow:to_client; content:\"response_user_agent\"; "
"http_cookie; sid:1;)");
if (s == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
/* request */
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER,
httpbuf_request, httpbuf_request_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
if (PacketAlertCheck(p1, 1)) {
goto end;
}
/* response */
SCMutexLock(&f.m);
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOCLIENT,
httpbuf_response, httpbuf_response_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
if (!PacketAlertCheck(p2, 1)) {
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (det_ctx != NULL) {
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
}
if (de_ctx != NULL) {
SigGroupCleanup(de_ctx);
DetectEngineCtxFree(de_ctx);
}
StreamTcpFreeConfig(TRUE);
UTHFreePackets(&p1, 1);
UTHFreePackets(&p2, 1);
return result;
}
static int DetectEngineSMTPFiledataTest03(void)
{
uint8_t mimemsg1[] = {0x65, 0x76,};
uint8_t mimemsg2[] = {0x69, 0x6C,};
uint32_t mimemsg1_len = sizeof(mimemsg1) - 1;
uint32_t mimemsg2_len = sizeof(mimemsg2) - 1;
TcpSession ssn;
Packet *p;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
SMTPState *smtp_state = NULL;
Flow f;
int result = 1;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
f.alstate = SMTPStateAlloc();
MimeDecParseState *state = MimeDecInitParser(&f, NULL);
((MimeDecEntity *)state->stack->top->data)->ctnt_flags = CTNT_IS_ATTACHMENT;
state->body_begin = 1;
if (SMTPProcessDataChunk((uint8_t *)mimemsg1, sizeof(mimemsg1), state) != 0)
goto end;
if (SMTPProcessDataChunk((uint8_t *)mimemsg2, sizeof(mimemsg2), state) != 0)
goto end;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_SMTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert smtp any any -> any any "
"(msg:\"file_data smtp test\"; "
"file_data; content:\"evil\"; sid:1;)");
if (de_ctx->sig_list == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
int r = 0;
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_SMTP,
STREAM_TOSERVER, mimemsg1, mimemsg1_len);
if (r != 0) {
printf("AppLayerParse for smtp failed. Returned %d", r);
FLOWLOCK_UNLOCK(&f);
goto end;
}
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_SMTP,
STREAM_TOSERVER, mimemsg2, mimemsg2_len);
if (r != 0) {
printf("AppLayerParse for smtp failed. Returned %d", r);
FLOWLOCK_UNLOCK(&f);
goto end;
}
FLOWLOCK_UNLOCK(&f);
smtp_state = f.alstate;
if (smtp_state == NULL) {
printf("no smtp state: ");
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (PacketAlertCheck(p, 1)) {
printf("sid 1 matched but shouldn't have\n");
goto end;
}
result = 0;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result == 0;
}
/**
*\test Test that the http_response_line content matches against a http request
* which holds the content.
*/
static int DetectHttpResponseLineTest02(void)
{
TcpSession ssn;
Packet *p = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
Flow f;
uint8_t http_buf[] =
"GET /index.html HTTP/1.0\r\n"
"Host: www.openinfosecfoundation.org\r\n"
"User-Agent: This is dummy message body\r\n"
"Content-Type: text/html\r\n"
"\r\n";
uint32_t http_len = sizeof(http_buf) - 1;
uint8_t http_buf2[] =
"HTTP/1.0 200 OK\r\n"
"Content-Type: text/html\r\n"
"Content-Length: 7\r\n"
"\r\n"
"message";
uint32_t http_len2 = sizeof(http_buf2) - 1;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
FAIL_IF_NULL(alp_tctx);
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FAIL_IF_NULL(p);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= (FLOW_PKT_TOSERVER|FLOW_PKT_ESTABLISHED);
p->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL(de_ctx);
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(http_response_line; content:\"HTTP/1.0 200 OK\"; "
"sid:1;)");
FAIL_IF_NULL(de_ctx->sig_list);
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
int r = AppLayerParserParse(&th_v, alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
FAIL_IF(r != 0);
http_state = f.alstate;
FAIL_IF_NULL(http_state);
r = AppLayerParserParse(&th_v, alp_tctx, &f, ALPROTO_HTTP, STREAM_TOCLIENT, http_buf2, http_len2);
FAIL_IF(r != 0);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
FAIL_IF(PacketAlertCheck(p, 1));
p->flowflags = (FLOW_PKT_TOCLIENT|FLOW_PKT_ESTABLISHED);
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
FAIL_IF(!(PacketAlertCheck(p, 1)));
AppLayerParserThreadCtxFree(alp_tctx);
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
PASS;
}
static int SMB2ParserTest01(void)
{
int result = 1;
Flow f;
uint8_t smb2buf[] =
"\x00\x00\x00\x66" // NBSS
"\xfe\x53\x4d\x42\x40\x00\x00\x00\x00\x00\x00\x00\x00\x00" // SMB2
"\x3f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x24\x00\x01\x00x00\x00\x00\x00\x00\x00\x0\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x02";
uint32_t smb2len = sizeof(smb2buf) - 1;
TcpSession ssn;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
f.protoctx = (void *)&ssn;
StreamTcpInitConfig(TRUE);
FLOWLOCK_WRLOCK(&f);
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_SMB2,
STREAM_TOSERVER | STREAM_EOF, smb2buf,
smb2len);
if (r != 0) {
printf("smb2 header check returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(&f);
goto end;
}
FLOWLOCK_UNLOCK(&f);
SMB2State *smb2_state = f.alstate;
if (smb2_state == NULL) {
printf("no smb2 state: ");
result = 0;
goto end;
}
if (smb2_state->nbss.type != NBSS_SESSION_MESSAGE) {
printf("expected nbss type 0x%02x , got 0x%02x : ", NBSS_SESSION_MESSAGE, smb2_state->nbss.type);
result = 0;
goto end;
}
if (smb2_state->nbss.length != 102) {
printf("expected nbss length 0x%02x , got 0x%02x : ", 102, smb2_state->nbss.length);
result = 0;
goto end;
}
if (smb2_state->smb2.Command != SMB2_NEGOTIATE) {
printf("expected SMB2 command 0x%04x , got 0x%04x : ", SMB2_NEGOTIATE, smb2_state->smb2.Command);
result = 0;
goto end;
}
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
StreamTcpFreeConfig(TRUE);
return result;
}
static int DetectEngineSMTPFiledataTest01(void)
{
uint8_t mimemsg[] = {0x4D, 0x49, 0x4D, 0x45, 0x2D, 0x56, 0x65, 0x72,
0x73, 0x69, 0x6F, 0x6E, 0x3A, 0x20, 0x31, 0x2E,
0x30, 0x0D, 0x0A, 0x43, 0x6F, 0x6E, 0x74, 0x65,
0x6E, 0x74, 0x2D, 0x54, 0x79, 0x70, 0x65, 0x3A,
0x20, 0x74, 0x65, 0x78, 0x74, 0x2F, 0x70, 0x6C,
0x61, 0x69, 0x6E, 0x3B, 0x20, 0x63, 0x68, 0x61,
0x72, 0x73, 0x65, 0x74, 0x3D, 0x55, 0x54, 0x46,
0x2D, 0x38, 0x3B, 0x0D, 0x0A, 0x43, 0x6F, 0x6E,
0x74, 0x65, 0x6E, 0x74, 0x2D, 0x54, 0x72, 0x61,
0x6E, 0x73, 0x66, 0x65, 0x72, 0x2D, 0x45, 0x6E,
0x63, 0x6F, 0x64, 0x69, 0x6E, 0x67, 0x3A, 0x20,
0x37, 0x62, 0x69, 0x74, 0x0D, 0x0A, 0x43, 0x6F,
0x6E, 0x74, 0x65, 0x6E, 0x74, 0x2D, 0x44, 0x69,
0x73, 0x70, 0x6F, 0x73, 0x69, 0x74, 0x69, 0x6F,
0x6E, 0x3A, 0x20, 0x61, 0x74, 0x74, 0x61, 0x63,
0x68, 0x6D, 0x65, 0x6E, 0x74, 0x3B, 0x20, 0x66,
0x69, 0x6C, 0x65, 0x6E, 0x61, 0x6D, 0x65, 0x3D,
0x22, 0x74, 0x65, 0x73, 0x74, 0x2E, 0x74, 0x78,
0x74, 0x22, 0x0D, 0x0A, 0x0D, 0x0A, 0x6d, 0x65,
0x73, 0x73, 0x61, 0x67, 0x65,};
uint32_t mimemsg_len = sizeof(mimemsg) - 1;
TcpSession ssn;
Packet *p;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
SMTPState *smtp_state = NULL;
Flow f;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
f.alstate = SMTPStateAlloc();
MimeDecParseState *state = MimeDecInitParser(&f, NULL);
((MimeDecEntity *)state->stack->top->data)->ctnt_flags = CTNT_IS_ATTACHMENT;
state->body_begin = 1;
if (SMTPProcessDataChunk((uint8_t *)mimemsg, sizeof(mimemsg), state) != 0)
goto end;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST|PKT_STREAM_EOF;
f.alproto = ALPROTO_SMTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert smtp any any -> any any "
"(msg:\"file_data smtp test\"; "
"file_data; content:\"message\"; sid:1;)");
if (de_ctx->sig_list == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_SMTP, STREAM_TOSERVER, mimemsg, mimemsg_len);
if (r != 0) {
printf("AppLayerParse for smtp failed. Returned %d", r);
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
smtp_state = f.alstate;
if (smtp_state == NULL) {
printf("no smtp state: ");
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("sid 1 didn't match but should have\n");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
/** \test multi tx google.(com|net) query matching +
* app layer event */
static int DetectDnsQueryTest07(void)
{
/* google.com */
uint8_t buf1[] = { 0x10, 0x32, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x06, 0x67, 0x6F, 0x6F, 0x67, 0x6C,
0x65, 0x03, 0x63, 0x6F, 0x6D, 0x00,
0x00, 0x01, 0x00, 0x01, };
uint8_t buf2[] = { 0x10, 0x32, /* tx id */
0x81, 0x80|0x40, /* flags: resp, recursion desired, recusion available */
0x00, 0x01, /* 1 query */
0x00, 0x01, /* 1 answer */
0x00, 0x00, 0x00, 0x00, /* no auth rr, additional rr */
/* query record */
0x06, 0x67, 0x6F, 0x6F, 0x67, 0x6C, /* name */
0x65, 0x03, 0x63, 0x6F, 0x6D, 0x00, /* name cont */
0x00, 0x01, 0x00, 0x01, /* type a, class in */
/* answer */
0xc0, 0x0c, /* ref to name in query above */
0x00, 0x01, 0x00, 0x01, /* type a, class in */
0x00, 0x01, 0x40, 0xef, /* ttl */
0x00, 0x04, /* data len */
0x01, 0x02, 0x03, 0x04 }; /* addr */
/* google.net */
uint8_t buf3[] = { 0x11, 0x33, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x06, 0x67, 0x6F, 0x6F, 0x67, 0x6C,
0x65, 0x03, 0x6E, 0x65, 0x74, 0x00,
0x00, 0x10, 0x00, 0x01, };
int result = 0;
Flow f;
DNSState *dns_state = NULL;
Packet *p1 = NULL, *p2 = NULL, *p3 = NULL;
Signature *s = NULL;
ThreadVars tv;
DetectEngineThreadCtx *det_ctx = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&tv, 0, sizeof(ThreadVars));
memset(&f, 0, sizeof(Flow));
p1 = UTHBuildPacketReal(buf1, sizeof(buf1), IPPROTO_UDP,
"192.168.1.5", "192.168.1.1",
41424, 53);
p2 = UTHBuildPacketReal(buf2, sizeof(buf2), IPPROTO_UDP,
"192.168.1.5", "192.168.1.1",
41424, 53);
p3 = UTHBuildPacketReal(buf3, sizeof(buf3), IPPROTO_UDP,
"192.168.1.5", "192.168.1.1",
41424, 53);
FLOW_INITIALIZE(&f);
f.flags |= FLOW_IPV4;
f.proto = IPPROTO_UDP;
f.protomap = FlowGetProtoMapping(f.proto);
f.alproto = ALPROTO_DNS;
p1->flow = &f;
p1->flags |= PKT_HAS_FLOW;
p1->flowflags |= FLOW_PKT_TOSERVER;
p1->pcap_cnt = 1;
p2->flow = &f;
p2->flags |= PKT_HAS_FLOW;
p2->flowflags |= FLOW_PKT_TOCLIENT;
p2->pcap_cnt = 2;
p3->flow = &f;
p3->flags |= PKT_HAS_FLOW;
p3->flowflags |= FLOW_PKT_TOSERVER;
p3->pcap_cnt = 3;
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->mpm_matcher = DEFAULT_MPM;
de_ctx->flags |= DE_QUIET;
s = DetectEngineAppendSig(de_ctx, "alert dns any any -> any any "
"(msg:\"Test dns_query option\"; "
"dns_query; content:\"google.com\"; nocase; sid:1;)");
if (s == NULL) {
goto end;
}
s = DetectEngineAppendSig(de_ctx, "alert dns any any -> any any "
"(msg:\"Test dns_query option\"; "
"dns_query; content:\"google.net\"; nocase; sid:2;)");
if (s == NULL) {
goto end;
}
s = DetectEngineAppendSig(de_ctx, "alert dns any any -> any any "
"(msg:\"Test Z flag event\"; "
"app-layer-event:dns.z_flag_set; sid:3;)");
if (s == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DNS, STREAM_TOSERVER, buf1, sizeof(buf1));
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
dns_state = f.alstate;
if (dns_state == NULL) {
printf("no dns state: ");
goto end;
}
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p1);
if (!(PacketAlertCheck(p1, 1))) {
printf("(p1) sig 1 didn't alert, but it should have: ");
goto end;
}
if (PacketAlertCheck(p1, 2)) {
printf("(p1) sig 2 did alert, but it should not have: ");
goto end;
}
SCMutexLock(&f.m);
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DNS, STREAM_TOCLIENT, buf2, sizeof(buf2));
if (r != -1) {
printf("toserver client 1 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p2);
if (PacketAlertCheck(p2, 1)) {
printf("(p2) sig 1 alerted, but it should not have: ");
goto end;
}
if (PacketAlertCheck(p2, 2)) {
printf("(p2) sig 2 alerted, but it should not have: ");
goto end;
}
if (!(PacketAlertCheck(p2, 3))) {
printf("(p2) sig 3 didn't alert, but it should have: ");
goto end;
}
SCMutexLock(&f.m);
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DNS, STREAM_TOSERVER, buf3, sizeof(buf3));
if (r != 0) {
printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p3);
if (PacketAlertCheck(p3, 1)) {
printf("(p3) sig 1 alerted, but it should not have: ");
goto end;
}
if (!(PacketAlertCheck(p3, 2))) {
printf("(p3) sig 2 didn't alert, but it should have: ");
goto end;
}
/** \todo should not alert, bug #839
if (PacketAlertCheck(p3, 3)) {
printf("(p3) sig 3 did alert, but it should not have: ");
goto end;
}
*/
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (det_ctx != NULL)
DetectEngineThreadCtxDeinit(&tv, det_ctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
FLOW_DESTROY(&f);
UTHFreePacket(p1);
UTHFreePacket(p2);
UTHFreePacket(p3);
return result;
}
/** \test simple google.com query matching (TCP) */
static int DetectDnsQueryTest03(void)
{
/* google.com */
uint8_t buf[] = { 0x00, 28,
0x10, 0x32, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x06, 0x67, 0x6F, 0x6F, 0x67, 0x6C,
0x65, 0x03, 0x63, 0x6F, 0x6D, 0x00,
0x00, 0x10, 0x00, 0x01, };
int result = 0;
Flow f;
DNSState *dns_state = NULL;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars tv;
DetectEngineThreadCtx *det_ctx = NULL;
TcpSession ssn;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&tv, 0, sizeof(ThreadVars));
memset(&f, 0, sizeof(Flow));
memset(&ssn, 0, sizeof(TcpSession));
p = UTHBuildPacketReal(buf, sizeof(buf), IPPROTO_TCP,
"192.168.1.5", "192.168.1.1",
41424, 53);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.flags |= FLOW_IPV4;
f.proto = IPPROTO_TCP;
f.protomap = FlowGetProtoMapping(f.proto);
p->flow = &f;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p->flowflags |= FLOW_PKT_TOSERVER|FLOW_PKT_ESTABLISHED;
f.alproto = ALPROTO_DNS;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->mpm_matcher = DEFAULT_MPM;
de_ctx->flags |= DE_QUIET;
s = DetectEngineAppendSig(de_ctx, "alert dns any any -> any any "
"(msg:\"Test dns_query option\"; "
"content:\"google\"; nocase; dns_query; sid:1;)");
if (s == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DNS, STREAM_TOSERVER, buf, sizeof(buf));
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
dns_state = f.alstate;
if (dns_state == NULL) {
printf("no dns state: ");
goto end;
}
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("sig 1 didn't alert, but it should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (det_ctx != NULL)
DetectEngineThreadCtxDeinit(&tv, det_ctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePacket(p);
return result;
}
/** \test Send a get request in three chunks + more data. */
static int DetectSslVersionTestDetect01(void)
{
int result = 0;
Flow f;
uint8_t sslbuf1[] = { 0x16 };
uint32_t ssllen1 = sizeof(sslbuf1);
uint8_t sslbuf2[] = { 0x03 };
uint32_t ssllen2 = sizeof(sslbuf2);
uint8_t sslbuf3[] = { 0x01 };
uint32_t ssllen3 = sizeof(sslbuf3);
uint8_t sslbuf4[] = { 0x01, 0x00, 0x00, 0xad, 0x03, 0x01 };
uint32_t ssllen4 = sizeof(sslbuf4);
TcpSession ssn;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
f.alproto = ALPROTO_TLS;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx,"alert tls any any -> any any (msg:\"TLS\"; ssl_version:tls1.0; sid:1;)");
if (s == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER, sslbuf1, ssllen1);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER, sslbuf2, ssllen2);
if (r != 0) {
printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER, sslbuf3, ssllen3);
if (r != 0) {
printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER, sslbuf4, ssllen4);
if (r != 0) {
printf("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
SSLState *app_state = f.alstate;
if (app_state == NULL) {
printf("no ssl state: ");
goto end;
}
if (app_state->client_connp.content_type != 0x16) {
printf("expected content_type %" PRIu8 ", got %" PRIu8 ": ", 0x16, app_state->client_connp.content_type);
goto end;
}
if (app_state->client_connp.version != TLS_VERSION_10) {
printf("expected version %04" PRIu16 ", got %04" PRIu16 ": ", TLS_VERSION_10, app_state->client_connp.version);
goto end;
}
SCLogDebug("app_state is at %p, app_state->server_connp.version 0x%02X app_state->client_connp.version 0x%02X",
app_state, app_state->server_connp.version, app_state->client_connp.version);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
/** \test Check the signature working to alert when http_cookie is not present */
static int DetectHttpCookieSigTest07(void)
{
int result = 0;
Flow f;
uint8_t httpbuf1[] = "POST / HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\n"
"Cookie: dummy\r\n\r\n";
uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */
TcpSession ssn;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any (msg:"
"\"HTTP cookie\"; content:!\"dummy\"; "
"http_cookie; sid:1;)");
if (s == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (PacketAlertCheck(p, 1)) {
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (det_ctx != NULL) {
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
}
if (de_ctx != NULL) {
SigGroupCleanup(de_ctx);
DetectEngineCtxFree(de_ctx);
}
StreamTcpFreeConfig(TRUE);
UTHFreePackets(&p, 1);
return result;
}
static int DetectHttpRequestLineWrapper(const char *sig, const int expectation)
{
TcpSession ssn;
Packet *p = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
Flow f;
uint8_t http_buf[] =
"GET /index.html HTTP/1.0\r\n"
"Host: www.openinfosecfoundation.org\r\n"
"User-Agent: This is dummy message body\r\n"
"Content-Type: text/html\r\n"
"\r\n";
uint32_t http_len = sizeof(http_buf) - 1;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
FAIL_IF_NULL(alp_tctx);
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FAIL_IF_NULL(p);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL(de_ctx);
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, sig);
FAIL_IF_NULL(de_ctx->sig_list);
int sid = de_ctx->sig_list->id;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
int r = AppLayerParserParse(&th_v, alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
FAIL_IF(r != 0);
http_state = f.alstate;
FAIL_IF_NULL(http_state);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
r = PacketAlertCheck(p, sid);
FAIL_IF_NOT(r == expectation);
AppLayerParserThreadCtxFree(alp_tctx);
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
PASS;
}
static int DetectSslVersionTestDetect02(void)
{
Flow f;
uint8_t sslbuf1[] = { 0x16 };
uint32_t ssllen1 = sizeof(sslbuf1);
uint8_t sslbuf2[] = { 0x03 };
uint32_t ssllen2 = sizeof(sslbuf2);
uint8_t sslbuf3[] = { 0x01 };
uint32_t ssllen3 = sizeof(sslbuf3);
uint8_t sslbuf4[] = { 0x01, 0x00, 0x00, 0xad, 0x03, 0x02 };
uint32_t ssllen4 = sizeof(sslbuf4);
TcpSession ssn;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
f.alproto = ALPROTO_TLS;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL(de_ctx);
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx,"alert tls any any -> any any (msg:\"TLS\"; ssl_version:tls1.0; sid:1;)");
FAIL_IF_NULL(s);
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS,
STREAM_TOSERVER, sslbuf1, ssllen1);
FAIL_IF(r != 0);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER,
sslbuf2, ssllen2);
FAIL_IF(r != 0);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER,
sslbuf3, ssllen3);
FAIL_IF(r != 0);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER,
sslbuf4, ssllen4);
FAIL_IF(r != 0);
FLOWLOCK_UNLOCK(&f);
SSLState *app_state = f.alstate;
FAIL_IF_NULL(app_state);
FAIL_IF(app_state->client_connp.content_type != 0x16);
FAIL_IF(app_state->client_connp.version != TLS_VERSION_10);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
FAIL_IF_NOT(PacketAlertCheck(p, 1));
AppLayerParserThreadCtxFree(alp_tctx);
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
PASS;
}
/**
* \test Check the ftpbounce match, send a get request in three chunks
* + more data.
* \brief This test tests the ftpbounce condition match, based on the
* ftp layer parser
*/
static int DetectFtpbounceTestALMatch02(void)
{
int result = 0;
uint8_t ftpbuf1[] = { 'P','O' };
uint32_t ftplen1 = sizeof(ftpbuf1);
uint8_t ftpbuf2[] = { 'R', 'T' };
uint32_t ftplen2 = sizeof(ftpbuf2);
uint8_t ftpbuf3[] = { ' ', '8','0',',','5' };
uint32_t ftplen3 = sizeof(ftpbuf3);
uint8_t ftpbuf4[] = "8,0,33,10,20\r\n";
uint32_t ftplen4 = sizeof(ftpbuf4);
TcpSession ssn;
Flow f;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacketSrcDst(NULL, 0, IPPROTO_TCP, "1.2.3.4", "5.6.7.8");
FLOW_INITIALIZE(&f);
f.src.address.address_un_data32[0]=0x01020304;
f.protoctx =(void *)&ssn;
f.proto = IPPROTO_TCP;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_FTP;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx,"alert tcp any any -> any any "
"(msg:\"Ftp Bounce\"; ftpbounce; sid:1;)");
if (s == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v,(void *)de_ctx,(void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_FTP,
STREAM_TOSERVER, ftpbuf1, ftplen1);
if (r != 0) {
SCLogDebug("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(&f);
goto end;
}
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_FTP, STREAM_TOSERVER,
ftpbuf2, ftplen2);
if (r != 0) {
SCLogDebug("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(&f);
goto end;
}
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_FTP, STREAM_TOSERVER,
ftpbuf3, ftplen3);
if (r != 0) {
SCLogDebug("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(&f);
goto end;
}
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_FTP, STREAM_TOSERVER,
ftpbuf4, ftplen4);
if (r != 0) {
SCLogDebug("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(&f);
goto end;
}
FLOWLOCK_UNLOCK(&f);
FtpState *ftp_state = f.alstate;
if (ftp_state == NULL) {
SCLogDebug("no ftp state: ");
result = 0;
goto end;
}
if (ftp_state->command != FTP_COMMAND_PORT) {
SCLogDebug("expected command port not detected");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
DetectEngineThreadCtxDeinit(&th_v,(void *)det_ctx);
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
/**
* \test Test matching for google in the issuer of a certificate
*
*/
static int DetectTlsIssuerTest02(void)
{
/* client hello */
uint8_t client_hello[] = {
0x16, 0x03, 0x01, 0x00, 0xc8, 0x01, 0x00, 0x00,
0xc4, 0x03, 0x03, 0xd6, 0x08, 0x5a, 0xa2, 0x86,
0x5b, 0x85, 0xd4, 0x40, 0xab, 0xbe, 0xc0, 0xbc,
0x41, 0xf2, 0x26, 0xf0, 0xfe, 0x21, 0xee, 0x8b,
0x4c, 0x7e, 0x07, 0xc8, 0xec, 0xd2, 0x00, 0x46,
0x4c, 0xeb, 0xb7, 0x00, 0x00, 0x16, 0xc0, 0x2b,
0xc0, 0x2f, 0xc0, 0x0a, 0xc0, 0x09, 0xc0, 0x13,
0xc0, 0x14, 0x00, 0x33, 0x00, 0x39, 0x00, 0x2f,
0x00, 0x35, 0x00, 0x0a, 0x01, 0x00, 0x00, 0x85,
0x00, 0x00, 0x00, 0x12, 0x00, 0x10, 0x00, 0x00,
0x0d, 0x77, 0x77, 0x77, 0x2e, 0x67, 0x6f, 0x6f,
0x67, 0x6c, 0x65, 0x2e, 0x6e, 0x6f, 0xff, 0x01,
0x00, 0x01, 0x00, 0x00, 0x0a, 0x00, 0x08, 0x00,
0x06, 0x00, 0x17, 0x00, 0x18, 0x00, 0x19, 0x00,
0x0b, 0x00, 0x02, 0x01, 0x00, 0x00, 0x23, 0x00,
0x00, 0x33, 0x74, 0x00, 0x00, 0x00, 0x10, 0x00,
0x29, 0x00, 0x27, 0x05, 0x68, 0x32, 0x2d, 0x31,
0x36, 0x05, 0x68, 0x32, 0x2d, 0x31, 0x35, 0x05,
0x68, 0x32, 0x2d, 0x31, 0x34, 0x02, 0x68, 0x32,
0x08, 0x73, 0x70, 0x64, 0x79, 0x2f, 0x33, 0x2e,
0x31, 0x08, 0x68, 0x74, 0x74, 0x70, 0x2f, 0x31,
0x2e, 0x31, 0x00, 0x05, 0x00, 0x05, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x0d, 0x00, 0x16, 0x00,
0x14, 0x04, 0x01, 0x05, 0x01, 0x06, 0x01, 0x02,
0x01, 0x04, 0x03, 0x05, 0x03, 0x06, 0x03, 0x02,
0x03, 0x04, 0x02, 0x02, 0x02
};
/* server hello */
uint8_t server_hello[] = {
0x16, 0x03, 0x03, 0x00, 0x48, 0x02, 0x00, 0x00,
0x44, 0x03, 0x03, 0x57, 0x91, 0xb8, 0x63, 0xdd,
0xdb, 0xbb, 0x23, 0xcf, 0x0b, 0x43, 0x02, 0x1d,
0x46, 0x11, 0x27, 0x5c, 0x98, 0xcf, 0x67, 0xe1,
0x94, 0x3d, 0x62, 0x7d, 0x38, 0x48, 0x21, 0x23,
0xa5, 0x62, 0x31, 0x00, 0xc0, 0x2f, 0x00, 0x00,
0x1c, 0xff, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x10,
0x00, 0x05, 0x00, 0x03, 0x02, 0x68, 0x32, 0x00,
0x0b, 0x00, 0x02, 0x01, 0x00
};
/* certificate */
uint8_t certificate[] = {
0x16, 0x03, 0x03, 0x04, 0x93, 0x0b, 0x00, 0x04,
0x8f, 0x00, 0x04, 0x8c, 0x00, 0x04, 0x89, 0x30,
0x82, 0x04, 0x85, 0x30, 0x82, 0x03, 0x6d, 0xa0,
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};
Flow f;
SSLState *ssl_state = NULL;
TcpSession ssn;
Packet *p1 = NULL;
Packet *p2 = NULL;
Packet *p3 = NULL;
Signature *s = NULL;
ThreadVars tv;
DetectEngineThreadCtx *det_ctx = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&tv, 0, sizeof(ThreadVars));
memset(&f, 0, sizeof(Flow));
memset(&ssn, 0, sizeof(TcpSession));
p1 = UTHBuildPacketReal(client_hello, sizeof(client_hello), IPPROTO_TCP,
"192.168.1.5", "192.168.1.1", 51251, 443);
p2 = UTHBuildPacketReal(server_hello, sizeof(server_hello), IPPROTO_TCP,
"192.168.1.1", "192.168.1.5", 443, 51251);
p3 = UTHBuildPacketReal(certificate, sizeof(certificate), IPPROTO_TCP,
"192.168.1.1", "192.168.1.5", 443, 51251);
FLOW_INITIALIZE(&f);
f.flags |= FLOW_IPV4;
f.proto = IPPROTO_TCP;
f.protomap = FlowGetProtoMapping(f.proto);
f.alproto = ALPROTO_TLS;
p1->flow = &f;
p1->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
p1->flowflags |= FLOW_PKT_TOSERVER;
p1->flowflags |= FLOW_PKT_ESTABLISHED;
p1->pcap_cnt = 1;
p2->flow = &f;
p2->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
p2->flowflags |= FLOW_PKT_TOCLIENT;
p2->flowflags |= FLOW_PKT_ESTABLISHED;
p2->pcap_cnt = 2;
p3->flow = &f;
p3->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
p3->flowflags |= FLOW_PKT_TOCLIENT;
p3->flowflags |= FLOW_PKT_ESTABLISHED;
p3->pcap_cnt = 3;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL(de_ctx);
de_ctx->mpm_matcher = DEFAULT_MPM;
de_ctx->flags |= DE_QUIET;
s = DetectEngineAppendSig(de_ctx, "alert tls any any -> any any "
"(msg:\"Test tls_cert_issuer\"; "
"tls_cert_issuer; content:\"google\"; nocase; "
"sid:1;)");
FAIL_IF_NULL(s);
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS,
STREAM_TOSERVER, client_hello,
sizeof(client_hello));
FLOWLOCK_UNLOCK(&f);
FAIL_IF(r != 0);
ssl_state = f.alstate;
FAIL_IF_NULL(ssl_state);
SigMatchSignatures(&tv, de_ctx, det_ctx, p1);
FAIL_IF(PacketAlertCheck(p1, 1));
FLOWLOCK_WRLOCK(&f);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOCLIENT,
server_hello, sizeof(server_hello));
FLOWLOCK_UNLOCK(&f);
FAIL_IF(r != 0);
SigMatchSignatures(&tv, de_ctx, det_ctx, p2);
FAIL_IF(PacketAlertCheck(p2, 1));
FLOWLOCK_WRLOCK(&f);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOCLIENT,
certificate, sizeof(certificate));
FLOWLOCK_UNLOCK(&f);
FAIL_IF(r != 0);
SigMatchSignatures(&tv, de_ctx, det_ctx, p3);
FAIL_IF_NOT(PacketAlertCheck(p3, 1));
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (det_ctx != NULL)
DetectEngineThreadCtxDeinit(&tv, det_ctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePacket(p1);
UTHFreePacket(p2);
UTHFreePacket(p3);
PASS;
}
/**
* \test Check the ftpbounce match
* \brief This test tests the ftpbounce condition match, based on
* the ftp layer parser
*/
static int DetectFtpbounceTestALMatch03(void)
{
int result = 0;
uint8_t ftpbuf1[] = { 'P','O' };
uint32_t ftplen1 = sizeof(ftpbuf1);
uint8_t ftpbuf2[] = { 'R', 'T' };
uint32_t ftplen2 = sizeof(ftpbuf2);
uint8_t ftpbuf3[] = { ' ', '1',',','2',',' };
uint32_t ftplen3 = sizeof(ftpbuf3);
uint8_t ftpbuf4[] = "3,4,10,20\r\n";
uint32_t ftplen4 = sizeof(ftpbuf4);
TcpSession ssn;
Flow f;
Packet *p = SCMalloc(SIZE_OF_PACKET);
if (unlikely(p == NULL))
return 0;
Signature *s = NULL;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(p, 0, SIZE_OF_PACKET);
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p->src.family = AF_INET;
p->dst.family = AF_INET;
p->src.addr_data32[0] = 0x04030201;
p->payload = NULL;
p->payload_len = 0;
p->proto = IPPROTO_TCP;
FLOW_INITIALIZE(&f);
f.src.address.address_un_data32[0]=0x04030201;
f.protoctx =(void *)&ssn;
f.proto = IPPROTO_TCP;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_FTP;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx,"alert tcp any any -> any any "
"(msg:\"Ftp Bounce\"; ftpbounce; sid:1;)");
if (s == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v,(void *)de_ctx,(void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_FTP,
STREAM_TOSERVER, ftpbuf1, ftplen1);
if (r != 0) {
SCLogDebug("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(&f);
goto end;
}
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_FTP, STREAM_TOSERVER,
ftpbuf2, ftplen2);
if (r != 0) {
SCLogDebug("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(&f);
goto end;
}
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_FTP, STREAM_TOSERVER,
ftpbuf3, ftplen3);
if (r != 0) {
SCLogDebug("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(&f);
goto end;
}
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_FTP, STREAM_TOSERVER,
ftpbuf4, ftplen4);
if (r != 0) {
SCLogDebug("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(&f);
goto end;
}
FLOWLOCK_UNLOCK(&f);
FtpState *ftp_state = f.alstate;
if (ftp_state == NULL) {
SCLogDebug("no ftp state: ");
result = 0;
goto end;
}
if (ftp_state->command != FTP_COMMAND_PORT) {
SCLogDebug("expected command port not detected");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
/* It should not match */
if (!(PacketAlertCheck(p, 1))) {
result = 1;
} else {
SCLogDebug("It should not match here!");
}
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
DetectEngineThreadCtxDeinit(&th_v,(void *)det_ctx);
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
SCFree(p);
return result;
}
int AppLayerParserFromFile(AppProto alproto, char *filename)
{
int result = 1;
Flow *f = NULL;
TcpSession ssn;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&ssn, 0, sizeof(ssn));
f = SCCalloc(1, sizeof(Flow));
if (f == NULL)
goto end;
FLOW_INITIALIZE(f);
f->flags |= FLOW_IPV4;
f->src.addr_data32[0] = 0x01020304;
f->dst.addr_data32[0] = 0x05060708;
f->sp = 10000;
f->dp = 80;
f->protoctx = &ssn;
f->proto = IPPROTO_TCP;
f->alproto = alproto;
uint8_t buffer[64];
#ifdef AFLFUZZ_PERSISTANT_MODE
while (__AFL_LOOP(1000)) {
/* reset state */
memset(buffer, 0, sizeof(buffer));
#endif /* AFLFUZZ_PERSISTANT_MODE */
FILE *fp = fopen(filename, "r");
BUG_ON(fp == NULL);
int start = 1;
int flip = 0;
while (1) {
int done = 0;
size_t result = fread(&buffer, 1, sizeof(buffer), fp);
if (result < sizeof(buffer))
done = 1;
//SCLogInfo("result %u done %d start %d", (uint)result, done, start);
uint8_t flags = 0;
if (flip) {
flags = STREAM_TOCLIENT;
flip = 0;
} else {
flags = STREAM_TOSERVER;
flip = 1;
}
if (start--) {
flags |= STREAM_START;
}
if (done) {
flags |= STREAM_EOF;
}
//PrintRawDataFp(stdout, buffer, result);
(void)AppLayerParserParse(NULL, alp_tctx, f, alproto, flags,
buffer, result);
if (done)
break;
}
fclose(fp);
#ifdef AFLFUZZ_PERSISTANT_MODE
}
#endif /* AFLFUZZ_PERSISTANT_MODE */
result = 0;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (f != NULL) {
FlowFree(f);
}
return result;
}
/** \test simple google.com query matching (TCP splicing) */
static int DetectDnsQueryTest04(void)
{
/* google.com */
uint8_t buf1[] = { 0x00, 28,
0x10, 0x32, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, };
uint8_t buf2[] = { 0x06, 0x67, 0x6F, 0x6F, 0x67, 0x6C,
0x65, 0x03, 0x63, 0x6F, 0x6D, 0x00,
0x00, 0x10, 0x00, 0x01, };
Flow f;
RSDNSState *dns_state = NULL;
Packet *p1 = NULL, *p2 = NULL;
Signature *s = NULL;
ThreadVars tv;
DetectEngineThreadCtx *det_ctx = NULL;
TcpSession ssn;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&tv, 0, sizeof(ThreadVars));
memset(&f, 0, sizeof(Flow));
memset(&ssn, 0, sizeof(TcpSession));
p1 = UTHBuildPacketReal(buf1, sizeof(buf1), IPPROTO_TCP,
"192.168.1.5", "192.168.1.1",
41424, 53);
p2 = UTHBuildPacketReal(buf2, sizeof(buf2), IPPROTO_TCP,
"192.168.1.5", "192.168.1.1",
41424, 53);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.flags |= FLOW_IPV4;
f.proto = IPPROTO_TCP;
f.protomap = FlowGetProtoMapping(f.proto);
f.alproto = ALPROTO_DNS;
p1->flow = &f;
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p1->flowflags |= FLOW_PKT_TOSERVER|FLOW_PKT_ESTABLISHED;
p2->flow = &f;
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p2->flowflags |= FLOW_PKT_TOSERVER|FLOW_PKT_ESTABLISHED;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL(de_ctx);
de_ctx->mpm_matcher = mpm_default_matcher;
de_ctx->flags |= DE_QUIET;
s = DetectEngineAppendSig(de_ctx, "alert dns any any -> any any "
"(msg:\"Test dns_query option\"; "
"dns_query; content:\"google\"; nocase; sid:1;)");
FAIL_IF_NULL(s);
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_DNS,
STREAM_TOSERVER, buf1, sizeof(buf1));
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
FLOWLOCK_UNLOCK(&f);
FAIL;
}
FLOWLOCK_UNLOCK(&f);
dns_state = f.alstate;
FAIL_IF_NULL(dns_state);
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p1);
if (PacketAlertCheck(p1, 1)) {
printf("sig 1 alerted, but it should not have: ");
FAIL;
}
FLOWLOCK_WRLOCK(&f);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_DNS, STREAM_TOSERVER,
buf2, sizeof(buf2));
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0\n", r);
FLOWLOCK_UNLOCK(&f);
FAIL;
}
FLOWLOCK_UNLOCK(&f);
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p2);
if (!(PacketAlertCheck(p2, 1))) {
printf("sig 1 didn't alert, but it should have: ");
FAIL;
}
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (det_ctx != NULL)
DetectEngineThreadCtxDeinit(&tv, det_ctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePacket(p1);
UTHFreePacket(p2);
PASS;
}
/** \test simple google.com query matching (TCP splicing) */
static int DetectDnsQueryTest05(void)
{
/* google.com in 2 chunks (buf1 and buf2) */
uint8_t buf1[] = { 0x00, 28, /* len 28 */
0x10, 0x32, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, };
uint8_t buf2[] = { 0x06, 0x67, 0x6F, 0x6F, 0x67, 0x6C,
0x65, 0x03, 0x63, 0x6F, 0x6D, 0x00,
0x00, 0x10, 0x00, 0x01, };
uint8_t buf3[] = { 0x00, 44, /* len 44 */
0x10, 0x32, /* tx id */
0x81, 0x80, /* flags: resp, recursion desired, recusion available */
0x00, 0x01, /* 1 query */
0x00, 0x01, /* 1 answer */
0x00, 0x00, 0x00, 0x00, /* no auth rr, additional rr */
/* query record */
0x06, 0x67, 0x6F, 0x6F, 0x67, 0x6C, /* name */
0x65, 0x03, 0x63, 0x6F, 0x6D, 0x00, /* name cont */
0x00, 0x01, 0x00, 0x01, /* type a, class in */
/* answer */
0xc0, 0x0c, /* ref to name in query above */
0x00, 0x01, 0x00, 0x01, /* type a, class in */
0x00, 0x01, 0x40, 0xef, /* ttl */
0x00, 0x04, /* data len */
0x01, 0x02, 0x03, 0x04 }; /* addr */
/* google.net */
uint8_t buf4[] = { 0x00, 28, /* len 28 */
0x11, 0x33, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x06, 0x67, 0x6F, 0x6F, 0x67, 0x6C,
0x65, 0x03, 0x6E, 0x65, 0x74, 0x00,
0x00, 0x10, 0x00, 0x01, };
Flow f;
RSDNSState *dns_state = NULL;
Packet *p1 = NULL, *p2 = NULL, *p3 = NULL, *p4 = NULL;
Signature *s = NULL;
ThreadVars tv;
DetectEngineThreadCtx *det_ctx = NULL;
TcpSession ssn;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&tv, 0, sizeof(ThreadVars));
memset(&f, 0, sizeof(Flow));
memset(&ssn, 0, sizeof(TcpSession));
p1 = UTHBuildPacketReal(buf1, sizeof(buf1), IPPROTO_TCP,
"192.168.1.5", "192.168.1.1",
41424, 53);
p2 = UTHBuildPacketReal(buf2, sizeof(buf2), IPPROTO_TCP,
"192.168.1.5", "192.168.1.1",
41424, 53);
p3 = UTHBuildPacketReal(buf3, sizeof(buf3), IPPROTO_TCP,
"192.168.1.5", "192.168.1.1",
41424, 53);
p4 = UTHBuildPacketReal(buf4, sizeof(buf4), IPPROTO_TCP,
"192.168.1.5", "192.168.1.1",
41424, 53);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.flags |= FLOW_IPV4;
f.proto = IPPROTO_TCP;
f.protomap = FlowGetProtoMapping(f.proto);
f.alproto = ALPROTO_DNS;
p1->flow = &f;
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p1->flowflags |= FLOW_PKT_TOSERVER|FLOW_PKT_ESTABLISHED;
p2->flow = &f;
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p2->flowflags |= FLOW_PKT_TOSERVER|FLOW_PKT_ESTABLISHED;
p3->flow = &f;
p3->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p3->flowflags |= FLOW_PKT_TOCLIENT|FLOW_PKT_ESTABLISHED;
p4->flow = &f;
p4->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p4->flowflags |= FLOW_PKT_TOSERVER|FLOW_PKT_ESTABLISHED;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL(de_ctx);
de_ctx->mpm_matcher = mpm_default_matcher;
de_ctx->flags |= DE_QUIET;
s = DetectEngineAppendSig(de_ctx, "alert dns any any -> any any "
"(msg:\"Test dns_query option\"; "
"dns_query; content:\"google.com\"; nocase; sid:1;)");
FAIL_IF_NULL(s);
s = DetectEngineAppendSig(de_ctx, "alert dns any any -> any any "
"(msg:\"Test dns_query option\"; "
"dns_query; content:\"google.net\"; nocase; sid:2;)");
FAIL_IF_NULL(s);
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_DNS,
STREAM_TOSERVER, buf1, sizeof(buf1));
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
FLOWLOCK_UNLOCK(&f);
FAIL;
}
FLOWLOCK_UNLOCK(&f);
dns_state = f.alstate;
FAIL_IF_NULL(dns_state);
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p1);
if (PacketAlertCheck(p1, 1)) {
printf("(p1) sig 1 alerted, but it should not have: ");
FAIL;
}
if (PacketAlertCheck(p1, 2)) {
printf("(p1) sig 2 did alert, but it should not have: ");
FAIL;
}
FLOWLOCK_WRLOCK(&f);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_DNS, STREAM_TOSERVER,
buf2, sizeof(buf2));
if (r != 0) {
printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
FLOWLOCK_UNLOCK(&f);
FAIL;
}
FLOWLOCK_UNLOCK(&f);
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p2);
if (!(PacketAlertCheck(p2, 1))) {
printf("sig 1 didn't alert, but it should have: ");
FAIL;
}
if (PacketAlertCheck(p2, 2)) {
printf("(p2) sig 2 did alert, but it should not have: ");
FAIL;
}
FLOWLOCK_WRLOCK(&f);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_DNS, STREAM_TOCLIENT,
buf3, sizeof(buf3));
if (r != 0) {
printf("toclient chunk 1 returned %" PRId32 ", expected 0: ", r);
FLOWLOCK_UNLOCK(&f);
FAIL;
}
FLOWLOCK_UNLOCK(&f);
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p3);
if (PacketAlertCheck(p3, 1)) {
printf("sig 1 did alert, but it should not have: ");
FAIL;
}
if (PacketAlertCheck(p3, 2)) {
printf("(p3) sig 2 did alert, but it should not have: ");
FAIL;
}
FLOWLOCK_WRLOCK(&f);
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_DNS, STREAM_TOSERVER,
buf4, sizeof(buf4));
if (r != 0) {
printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
FLOWLOCK_UNLOCK(&f);
FAIL;
}
FLOWLOCK_UNLOCK(&f);
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p4);
if (PacketAlertCheck(p4, 1)) {
printf("(p4) sig 1 did alert, but it should not have: ");
FAIL;
}
if (!(PacketAlertCheck(p4, 2))) {
printf("sig 1 didn't alert, but it should have: ");
FAIL;
}
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (det_ctx != NULL)
DetectEngineThreadCtxDeinit(&tv, det_ctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePacket(p1);
UTHFreePacket(p2);
UTHFreePacket(p3);
UTHFreePacket(p4);
PASS;
}
/** \test simple google.com query matching, pcre */
static int DetectDnsQueryTest06(void)
{
/* google.com */
uint8_t buf[] = { 0x10, 0x32, 0x01, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x06, 0x67, 0x6F, 0x6F, 0x67, 0x6C,
0x65, 0x03, 0x63, 0x6F, 0x6D, 0x00,
0x00, 0x10, 0x00, 0x01, };
Flow f;
RSDNSState *dns_state = NULL;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars tv;
DetectEngineThreadCtx *det_ctx = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&tv, 0, sizeof(ThreadVars));
memset(&f, 0, sizeof(Flow));
p = UTHBuildPacketReal(buf, sizeof(buf), IPPROTO_UDP,
"192.168.1.5", "192.168.1.1",
41424, 53);
FLOW_INITIALIZE(&f);
f.flags |= FLOW_IPV4;
f.proto = IPPROTO_UDP;
f.protomap = FlowGetProtoMapping(f.proto);
p->flow = &f;
p->flags |= PKT_HAS_FLOW;
p->flowflags |= FLOW_PKT_TOSERVER;
f.alproto = ALPROTO_DNS;
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL(de_ctx);
de_ctx->mpm_matcher = mpm_default_matcher;
de_ctx->flags |= DE_QUIET;
s = DetectEngineAppendSig(de_ctx, "alert dns any any -> any any "
"(msg:\"Test dns_query option\"; "
"dns_query; content:\"google\"; nocase; "
"pcre:\"/google\\.com$/i\"; sid:1;)");
FAIL_IF_NULL(s);
s = DetectEngineAppendSig(de_ctx, "alert dns any any -> any any "
"(msg:\"Test dns_query option\"; "
"dns_query; content:\"google\"; nocase; "
"pcre:\"/^\\.[a-z]{2,3}$/iR\"; sid:2;)");
FAIL_IF_NULL(s);
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_DNS,
STREAM_TOSERVER, buf, sizeof(buf));
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
FLOWLOCK_UNLOCK(&f);
FAIL;
}
FLOWLOCK_UNLOCK(&f);
dns_state = f.alstate;
FAIL_IF_NULL(dns_state);
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("sig 1 didn't alert, but it should have: ");
FAIL;
}
if (!(PacketAlertCheck(p, 2))) {
printf("sig 2 didn't alert, but it should have: ");
FAIL;
}
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (det_ctx != NULL)
DetectEngineThreadCtxDeinit(&tv, det_ctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
FLOW_DESTROY(&f);
UTHFreePacket(p);
PASS;
}
/** \test Send a get request in three chunks + more data. */
static int DetectSshVersionTestDetect03(void)
{
int result = 0;
Flow f;
uint8_t sshbuf1[] = "SSH-1.";
uint32_t sshlen1 = sizeof(sshbuf1) - 1;
uint8_t sshbuf2[] = "7-PuTTY_2.123" ;
uint32_t sshlen2 = sizeof(sshbuf2) - 1;
uint8_t sshbuf3[] = "\n";
uint32_t sshlen3 = sizeof(sshbuf3) - 1;
uint8_t sshbuf4[] = "whatever...";
uint32_t sshlen4 = sizeof(sshbuf4) - 1;
TcpSession ssn;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_SSH;
f.proto = IPPROTO_TCP;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx,"alert ssh any any -> any any (msg:\"SSH\"; ssh.protoversion:2_compat; sid:1;)");
if (s == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_SSH,
STREAM_TOSERVER, sshbuf1, sshlen1);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
FLOWLOCK_UNLOCK(&f);
goto end;
}
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER,
sshbuf2, sshlen2);
if (r != 0) {
printf("toserver chunk 2 returned %" PRId32 ", expected 0: ", r);
FLOWLOCK_UNLOCK(&f);
goto end;
}
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER,
sshbuf3, sshlen3);
if (r != 0) {
printf("toserver chunk 3 returned %" PRId32 ", expected 0: ", r);
FLOWLOCK_UNLOCK(&f);
goto end;
}
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_SSH, STREAM_TOSERVER,
sshbuf4, sshlen4);
if (r != 0) {
printf("toserver chunk 4 returned %" PRId32 ", expected 0: ", r);
FLOWLOCK_UNLOCK(&f);
goto end;
}
FLOWLOCK_UNLOCK(&f);
SshState *ssh_state = f.alstate;
if (ssh_state == NULL) {
printf("no ssh state: ");
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (PacketAlertCheck(p, 1)) {
printf("Error, 1.7 version is not 2 compat, so the sig should not match: ");
goto end;
}
result = 1;
end:
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
return result;
}
/** \test Check the signature working to alert when http_stat_msg is used with
* negated content . */
static int DetectHttpStatMsgSigTest03(void)
{
int result = 0;
Flow f;
uint8_t httpbuf1[] = "POST / HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\n\r\n";
uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */
uint8_t httpbuf2[] = "HTTP/1.0 200 OK\r\n\r\n";
uint32_t httplen2 = sizeof(httpbuf2) - 1; /* minus the \0 */
TcpSession ssn;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars th_v;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOCLIENT;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
de_ctx->flags |= DE_QUIET;
s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any (msg:"
"\"HTTP status message\"; content:\"ok\"; "
"nocase; http_stat_msg; sid:1;)");
if (s == NULL) {
goto end;
}
s->next = SigInit(de_ctx,"alert http any any -> any any (msg:\"HTTP "
"Status message nocase\"; content:!\"Not\"; "
"http_stat_msg; sid:2;)");
if (s->next == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
FLOWLOCK_WRLOCK(&f);
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_HTTP,
STREAM_TOSERVER, httpbuf1, httplen1);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(&f);
goto end;
}
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_HTTP,
STREAM_TOCLIENT, httpbuf2, httplen2);
if (r != 0) {
printf("toclient chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
FLOWLOCK_UNLOCK(&f);
goto end;
}
FLOWLOCK_UNLOCK(&f);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (! PacketAlertCheck(p, 1)) {
printf("sid 1 didn't matched but should have: ");
goto end;
}
if (! PacketAlertCheck(p, 2)) {
printf("sid 2 didn't matched but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (det_ctx != NULL) {
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
}
if (de_ctx != NULL) {
SigGroupCleanup(de_ctx);
DetectEngineCtxFree(de_ctx);
}
StreamTcpFreeConfig(TRUE);
UTHFreePackets(&p, 1);
return result;
}
/**
*\test Test that the negated http_header content matches against a
* http request which doesn't hold the content.
*/
static int DetectHttpRawHeaderTest11(void)
{
TcpSession ssn;
Packet *p = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
Flow f;
uint8_t http_buf[] =
"GET /index.html HTTP/1.0\r\n"
"Host: www.openinfosecfoundation.org\r\n"
"User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\n"
"Content-Type: text/html\r\n"
"Content-Length: 26\r\n"
"\r\n"
"This is dummy message body\r\n";
uint32_t http_len = sizeof(http_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(msg:\"http header test\"; flow:to_server; "
"content:!\"lalalalala\"; http_raw_header; "
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
static int DetectTemplateBufferTest(void)
{
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
DetectEngineThreadCtx *det_ctx = NULL;
DetectEngineCtx *de_ctx = NULL;
Flow f;
Packet *p;
TcpSession tcp;
ThreadVars tv;
Signature *s;
int result = 0;
uint8_t request[] = "Hello World!";
/* Setup flow. */
memset(&f, 0, sizeof(Flow));
memset(&tcp, 0, sizeof(TcpSession));
memset(&tv, 0, sizeof(ThreadVars));
p = UTHBuildPacket(request, sizeof(request), IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.alproto = ALPROTO_TEMPLATE;
f.protoctx = (void *)&tcp;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
p->flowflags |= FLOW_PKT_TOSERVER | FLOW_PKT_ESTABLISHED;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL) {
goto end;
}
/* This rule should match. */
s = DetectEngineAppendSig(de_ctx,
"alert tcp any any -> any any ("
"msg:\"TEMPLATE Test Rule\"; "
"template_buffer; content:\"World!\"; "
"sid:1; rev:1;)");
if (s == NULL) {
goto end;
}
/* This rule should not match. */
s = DetectEngineAppendSig(de_ctx,
"alert tcp any any -> any any ("
"msg:\"TEMPLATE Test Rule\"; "
"template_buffer; content:\"W0rld!\"; "
"sid:2; rev:1;)");
if (s == NULL) {
goto end;
}
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
AppLayerParserParse(alp_tctx, &f, ALPROTO_TEMPLATE, STREAM_TOSERVER,
request, sizeof(request));
SCMutexUnlock(&f.m);
/* Check that we have app-layer state. */
if (f.alstate == NULL) {
goto end;
}
SigMatchSignatures(&tv, de_ctx, det_ctx, p);
if (!PacketAlertCheck(p, 1)) {
goto end;
}
if (PacketAlertCheck(p, 2)) {
goto end;
}
result = 1;
end:
/* Cleanup. */
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (det_ctx != NULL)
DetectEngineThreadCtxDeinit(&tv, det_ctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePacket(p);
return result;
}