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251 lines
7.4 KiB
C
251 lines
7.4 KiB
C
/* Copyright (C) 2007-2019 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \file
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*
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* \author Victor Julien <victor@inliniac.net>
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*
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*/
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/**
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* \test DetectTlsVersionTestParse01 is a test to make sure that we parse the "id"
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* option correctly when given valid id option
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*/
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static int DetectTlsVersionTestParse01 (void)
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{
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DetectTlsVersionData *tls = NULL;
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tls = DetectTlsVersionParse(NULL, "1.0");
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FAIL_IF_NULL(tls);
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FAIL_IF_NOT(tls->ver == TLS_VERSION_10);
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DetectTlsVersionFree(NULL, tls);
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PASS;
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}
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/**
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* \test DetectTlsVersionTestParse02 is a test to make sure that we parse the "id"
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* option correctly when given an invalid id option
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* it should return id_d = NULL
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*/
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static int DetectTlsVersionTestParse02 (void)
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{
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DetectTlsVersionData *tls = NULL;
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tls = DetectTlsVersionParse(NULL, "2.5");
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FAIL_IF_NOT_NULL(tls);
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DetectTlsVersionFree(NULL, tls);
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PASS;
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}
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#include "stream-tcp-reassemble.h"
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/** \test Send a get request in three chunks + more data. */
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static int DetectTlsVersionTestDetect01(void)
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{
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Flow f;
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uint8_t tlsbuf1[] = { 0x16 };
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uint32_t tlslen1 = sizeof(tlsbuf1);
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uint8_t tlsbuf2[] = { 0x03 };
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uint32_t tlslen2 = sizeof(tlsbuf2);
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uint8_t tlsbuf3[] = { 0x01 };
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uint32_t tlslen3 = sizeof(tlsbuf3);
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uint8_t tlsbuf4[] = { 0x01, 0x00, 0x00, 0xad, 0x03, 0x01 };
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uint32_t tlslen4 = sizeof(tlsbuf4);
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TcpSession ssn;
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Packet *p = NULL;
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Signature *s = NULL;
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ThreadVars th_v;
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DetectEngineThreadCtx *det_ctx = NULL;
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AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
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memset(&th_v, 0, sizeof(th_v));
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memset(&f, 0, sizeof(f));
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memset(&ssn, 0, sizeof(ssn));
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p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
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FLOW_INITIALIZE(&f);
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f.protoctx = (void *)&ssn;
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f.proto = IPPROTO_TCP;
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p->flow = &f;
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p->flowflags |= FLOW_PKT_TOSERVER;
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p->flowflags |= FLOW_PKT_ESTABLISHED;
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p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
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f.alproto = ALPROTO_TLS;
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StreamTcpInitConfig(TRUE);
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DetectEngineCtx *de_ctx = DetectEngineCtxInit();
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FAIL_IF_NULL(de_ctx);
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de_ctx->flags |= DE_QUIET;
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s = de_ctx->sig_list = SigInit(de_ctx,"alert tls any any -> any any (msg:\"TLS\"; tls.version:1.0; sid:1;)");
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FAIL_IF_NULL(s);
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SigGroupBuild(de_ctx);
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DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
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int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS,
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STREAM_TOSERVER, tlsbuf1, tlslen1);
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FAIL_IF(r != 0);
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r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER,
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tlsbuf2, tlslen2);
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FAIL_IF(r != 0);
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r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER,
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tlsbuf3, tlslen3);
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FAIL_IF(r != 0);
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r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER,
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tlsbuf4, tlslen4);
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FAIL_IF(r != 0);
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SSLState *ssl_state = f.alstate;
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FAIL_IF_NULL(ssl_state);
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FAIL_IF(ssl_state->client_connp.content_type != 0x16);
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FAIL_IF(ssl_state->client_connp.version != TLS_VERSION_10);
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SCLogDebug("ssl_state is at %p, ssl_state->server_version 0x%02X "
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"ssl_state->client_version 0x%02X",
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ssl_state, ssl_state->server_connp.version,
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ssl_state->client_connp.version);
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/* do detect */
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SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
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FAIL_IF_NOT(PacketAlertCheck(p, 1));
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AppLayerParserThreadCtxFree(alp_tctx);
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SigGroupCleanup(de_ctx);
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SigCleanSignatures(de_ctx);
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DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
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DetectEngineCtxFree(de_ctx);
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StreamTcpFreeConfig(TRUE);
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FLOW_DESTROY(&f);
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UTHFreePackets(&p, 1);
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PASS;
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}
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static int DetectTlsVersionTestDetect02(void)
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{
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Flow f;
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uint8_t tlsbuf1[] = { 0x16 };
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uint32_t tlslen1 = sizeof(tlsbuf1);
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uint8_t tlsbuf2[] = { 0x03 };
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uint32_t tlslen2 = sizeof(tlsbuf2);
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uint8_t tlsbuf3[] = { 0x01 };
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uint32_t tlslen3 = sizeof(tlsbuf3);
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uint8_t tlsbuf4[] = { 0x01, 0x00, 0x00, 0xad, 0x03, 0x02 };
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uint32_t tlslen4 = sizeof(tlsbuf4);
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TcpSession ssn;
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Packet *p = NULL;
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Signature *s = NULL;
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ThreadVars th_v;
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DetectEngineThreadCtx *det_ctx = NULL;
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AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
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memset(&th_v, 0, sizeof(th_v));
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memset(&f, 0, sizeof(f));
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memset(&ssn, 0, sizeof(ssn));
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p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
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FLOW_INITIALIZE(&f);
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f.protoctx = (void *)&ssn;
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f.proto = IPPROTO_TCP;
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p->flow = &f;
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p->flowflags |= FLOW_PKT_TOSERVER;
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p->flowflags |= FLOW_PKT_ESTABLISHED;
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p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
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f.alproto = ALPROTO_TLS;
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StreamTcpInitConfig(TRUE);
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DetectEngineCtx *de_ctx = DetectEngineCtxInit();
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FAIL_IF_NULL(de_ctx);
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de_ctx->flags |= DE_QUIET;
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s = de_ctx->sig_list = SigInit(de_ctx,"alert tls any any -> any any (msg:\"TLS\"; tls.version:1.0; sid:1;)");
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FAIL_IF_NULL(s);
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SigGroupBuild(de_ctx);
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DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
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int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS,
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STREAM_TOSERVER, tlsbuf1, tlslen1);
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FAIL_IF(r != 0);
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r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER,
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tlsbuf2, tlslen2);
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FAIL_IF(r != 0);
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r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER,
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tlsbuf3, tlslen3);
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FAIL_IF(r != 0);
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r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOSERVER,
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tlsbuf4, tlslen4);
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FAIL_IF(r != 0);
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SSLState *ssl_state = f.alstate;
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FAIL_IF_NULL(ssl_state);
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FAIL_IF(ssl_state->client_connp.content_type != 0x16);
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FAIL_IF(ssl_state->client_connp.version != TLS_VERSION_10);
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/* do detect */
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SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
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FAIL_IF_NOT(PacketAlertCheck(p, 1));
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AppLayerParserThreadCtxFree(alp_tctx);
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SigGroupCleanup(de_ctx);
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SigCleanSignatures(de_ctx);
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DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
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DetectEngineCtxFree(de_ctx);
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StreamTcpFreeConfig(TRUE);
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FLOW_DESTROY(&f);
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UTHFreePackets(&p, 1);
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PASS;
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}
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/**
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* \brief this function registers unit tests for DetectTlsVersion
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*/
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static void DetectTlsVersionRegisterTests(void)
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{
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UtRegisterTest("DetectTlsVersionTestParse01", DetectTlsVersionTestParse01);
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UtRegisterTest("DetectTlsVersionTestParse02", DetectTlsVersionTestParse02);
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UtRegisterTest("DetectTlsVersionTestDetect01",
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DetectTlsVersionTestDetect01);
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UtRegisterTest("DetectTlsVersionTestDetect02",
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DetectTlsVersionTestDetect02);
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}
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