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detect/dcerpc.iface: remove commented out unittest

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pull/12747/head
Victor Julien 1 year ago committed by Victor Julien
parent b8ed01e23e
commit 99f151c907
1 changed files with 1 additions and 361 deletions
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362
src/detect-dce-iface.c
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@ -58,9 +58,6 @@ static int DetectDceIfaceMatchRust(DetectEngineThreadCtx *det_ctx,
const Signature *s, const SigMatchCtx *m);
static int DetectDceIfaceSetup(DetectEngineCtx *, Signature *, const char *);
static void DetectDceIfaceFree(DetectEngineCtx *, void *);
#ifdef UNITTESTS
static void DetectDceIfaceRegisterTests(void);
#endif
static int g_dce_generic_list_id = 0;
/**
@ -72,10 +69,7 @@ void DetectDceIfaceRegister(void)
sigmatch_table[DETECT_DCE_IFACE].alias = "dce_iface";
sigmatch_table[DETECT_DCE_IFACE].AppLayerTxMatch = DetectDceIfaceMatchRust;
sigmatch_table[DETECT_DCE_IFACE].Setup = DetectDceIfaceSetup;
sigmatch_table[DETECT_DCE_IFACE].Free = DetectDceIfaceFree;
#ifdef UNITTESTS
sigmatch_table[DETECT_DCE_IFACE].RegisterTests = DetectDceIfaceRegisterTests;
#endif
sigmatch_table[DETECT_DCE_IFACE].Free = DetectDceIfaceFree;
DetectSetupParseRegexes(PARSE_REGEX, &parse_regex);
g_dce_generic_list_id = DetectBufferTypeRegister("dce_generic");
@ -169,357 +163,3 @@ static void DetectDceIfaceFree(DetectEngineCtx *de_ctx, void *ptr)
}
SCReturn;
}
/************************************Unittests*********************************/
#ifdef UNITTESTS
/* Disabled because of bug_753. Would be enabled, once we rewrite
* dce parser */
#if 0
/**
* \test Test a valid dce_iface entry with a bind, bind_ack and 3 request/responses.
*/
static int DetectDceIfaceTestParse13(void)
{
int result = 0;
Signature *s = NULL;
ThreadVars th_v;
Packet *p = NULL;
Flow f;
TcpSession ssn;
DetectEngineThreadCtx *det_ctx = NULL;
DetectEngineCtx *de_ctx = NULL;
DCERPCState *dcerpc_state = NULL;
int r = 0;
uint8_t dcerpc_bind[] = {
0x05, 0x00, 0x0b, 0x03, 0x10, 0x00, 0x00, 0x00,
0x48, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0xb8, 0x10, 0xb8, 0x10, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
0x01, 0xd0, 0x8c, 0x33, 0x44, 0x22, 0xf1, 0x31,
0xaa, 0xaa, 0x90, 0x00, 0x38, 0x00, 0x10, 0x03,
0x01, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00,
};
uint8_t dcerpc_bindack[] = {
0x05, 0x00, 0x0c, 0x03, 0x10, 0x00, 0x00, 0x00,
0x44, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0xb8, 0x10, 0xb8, 0x10, 0x65, 0x8e, 0x00, 0x00,
0x0d, 0x00, 0x5c, 0x50, 0x49, 0x50, 0x45, 0x5c,
0x77, 0x69, 0x6e, 0x72, 0x65, 0x67, 0x00, 0x6d,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11,
0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60,
0x02, 0x00, 0x00, 0x00,
};
uint8_t dcerpc_request1[] = {
0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00,
0x24, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00,
0x2c, 0xfd, 0xb5, 0x00, 0x40, 0xaa, 0x01, 0x00,
0x00, 0x00, 0x00, 0x02,
};
uint8_t dcerpc_response1[] = {
0x05, 0x00, 0x02, 0x03, 0x10, 0x00, 0x00, 0x00,
0x30, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xf6, 0x72, 0x28, 0x9c,
0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c,
0x29, 0x87, 0xea, 0xe9, 0x00, 0x00, 0x00, 0x00,
};
uint8_t dcerpc_request2[] = {
0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00,
0xa4, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
0x8c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00,
0x00, 0x00, 0x00, 0x00, 0xf6, 0x72, 0x28, 0x9c,
0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c,
0x29, 0x87, 0xea, 0xe9, 0x5c, 0x00, 0x5c, 0x00,
0xa8, 0xb9, 0x14, 0x00, 0x2e, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x2e, 0x00, 0x00, 0x00,
0x53, 0x00, 0x4f, 0x00, 0x46, 0x00, 0x54, 0x00,
0x57, 0x00, 0x41, 0x00, 0x52, 0x00, 0x45, 0x00,
0x5c, 0x00, 0x4d, 0x00, 0x69, 0x00, 0x63, 0x00,
0x72, 0x00, 0x6f, 0x00, 0x73, 0x00, 0x6f, 0x00,
0x66, 0x00, 0x74, 0x00, 0x5c, 0x00, 0x57, 0x00,
0x69, 0x00, 0x6e, 0x00, 0x64, 0x00, 0x6f, 0x00,
0x77, 0x00, 0x73, 0x00, 0x5c, 0x00, 0x43, 0x00,
0x75, 0x00, 0x72, 0x00, 0x72, 0x00, 0x65, 0x00,
0x6e, 0x00, 0x74, 0x00, 0x56, 0x00, 0x65, 0x00,
0x72, 0x00, 0x73, 0x00, 0x69, 0x00, 0x6f, 0x00,
0x6e, 0x00, 0x5c, 0x00, 0x52, 0x00, 0x75, 0x00,
0x6e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x03, 0x00, 0x00, 0x00,
};
uint8_t dcerpc_response2[] = {
0x05, 0x00, 0x02, 0x03, 0x10, 0x00, 0x00, 0x00,
0x30, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xf7, 0x72, 0x28, 0x9c,
0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c,
0x29, 0x87, 0xea, 0xe9, 0x00, 0x00, 0x00, 0x00,
};
uint8_t dcerpc_request3[] = {
0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00,
0x70, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
0x58, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0x00,
0x00, 0x00, 0x00, 0x00, 0xf7, 0x72, 0x28, 0x9c,
0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c,
0x29, 0x87, 0xea, 0xe9, 0x0c, 0x00, 0x0c, 0x00,
0x98, 0xda, 0x14, 0x00, 0x06, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00,
0x4f, 0x00, 0x73, 0x00, 0x61, 0x00, 0x33, 0x00,
0x32, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x18, 0x00, 0x00, 0x00, 0x4e, 0x00, 0x54, 0x00,
0x4f, 0x00, 0x53, 0x00, 0x41, 0x00, 0x33, 0x00,
0x32, 0x00, 0x2e, 0x00, 0x45, 0x00, 0x58, 0x00,
0x45, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00,
};
uint8_t dcerpc_response3[] = {
0x05, 0x00, 0x02, 0x03, 0x10, 0x00, 0x00, 0x00,
0x1c, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
};
uint32_t dcerpc_bind_len = sizeof(dcerpc_bind);
uint32_t dcerpc_bindack_len = sizeof(dcerpc_bindack);
uint32_t dcerpc_request1_len = sizeof(dcerpc_request1);
uint32_t dcerpc_response1_len = sizeof(dcerpc_response1);
uint32_t dcerpc_request2_len = sizeof(dcerpc_request2);
uint32_t dcerpc_response2_len = sizeof(dcerpc_response2);
uint32_t dcerpc_request3_len = sizeof(dcerpc_request3);
uint32_t dcerpc_response3_len = sizeof(dcerpc_response3);
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->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_DCERPC;
StreamTcpInitConfig(true);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
s = DetectEngineAppendSig(de_ctx,"alert tcp any any -> any any "
"(msg:\"DCERPC\"; dce_iface:338cd001-2244-31f1-aaaa-900038001003,=1,any_frag; sid:1;)");
if (s == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCLogDebug("chunk 1, bind");
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER | STREAM_START,
dcerpc_bind, dcerpc_bind_len);
if (r != 0) {
SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r);
goto end;
}
dcerpc_state = f.alstate;
if (dcerpc_state == NULL) {
SCLogDebug("no dcerpc state: ");
goto end;
}
p->flowflags &=~ FLOW_PKT_TOCLIENT;
p->flowflags |= FLOW_PKT_TOSERVER;
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (PacketAlertCheck(p, 1)) {
SCLogDebug("sig 1 didn't match after bind request: ");
goto end;
}
SCLogDebug("chunk 2, bind_ack");
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_bindack,
dcerpc_bindack_len);
if (r != 0) {
SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r);
goto end;
}
p->flowflags &=~ FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_TOCLIENT;
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (PacketAlertCheck(p, 1)) {
SCLogDebug("sig 1 matched again after bind ack: ");
goto end;
}
SCLogDebug("chunk 3, request 1");
/* request1 */
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER, dcerpc_request1,
dcerpc_request1_len);
if (r != 0) {
SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r);
goto end;
}
p->flowflags &=~ FLOW_PKT_TOCLIENT;
p->flowflags |= FLOW_PKT_TOSERVER;
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
SCLogDebug("sig 1 didn't match after request1: ");
goto end;
}
SCLogDebug("sending response1");
/* response1 */
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_response1,
dcerpc_response1_len);
if (r != 0) {
SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r);
goto end;
}
p->flowflags &=~ FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_TOCLIENT;
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (PacketAlertCheck(p, 1)) {
SCLogDebug("sig 1 matched after response1, but shouldn't: ");
goto end;
}
SCLogDebug("sending request2");
/* request2 */
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER, dcerpc_request2,
dcerpc_request2_len);
if (r != 0) {
SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r);
goto end;
}
p->flowflags &=~ FLOW_PKT_TOCLIENT;
p->flowflags |= FLOW_PKT_TOSERVER;
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
SCLogDebug("sig 1 didn't match after request2: ");
goto end;
}
/* response2 */
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_response2,
dcerpc_response2_len);
if (r != 0) {
SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r);
goto end;
}
p->flowflags &=~ FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_TOCLIENT;
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (PacketAlertCheck(p, 1)) {
SCLogDebug("sig 1 matched after response2, but shouldn't have: ");
goto end;
}
/* request3 */
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER, dcerpc_request3,
dcerpc_request3_len);
if (r != 0) {
SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r);
goto end;
}
p->flowflags &=~ FLOW_PKT_TOCLIENT;
p->flowflags |= FLOW_PKT_TOSERVER;
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
SCLogDebug("sig 1 didn't match after request3: ");
goto end;
}
/* response3 */
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT | STREAM_EOF,
dcerpc_response3, dcerpc_response3_len);
if (r != 0) {
SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r);
goto end;
}
p->flowflags &=~ FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_TOCLIENT;
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (PacketAlertCheck(p, 1)) {
SCLogDebug("sig 1 matched after response3, but shouldn't have: ");
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);
UTHFreePackets(&p, 1);
return result;
}
#endif
static void DetectDceIfaceRegisterTests(void)
{
/* Disabled because of bug_753. Would be enabled, once we rewrite
* dce parser */
#if 0
UtRegisterTest("DetectDceIfaceTestParse13", DetectDceIfaceTestParse13, 1);
#endif
}
#endif /* UNITTESTS */

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