#include "util-unittest-helper.h"
static int DetectTlsSniSetup(DetectEngineCtx *, Signature *, const char *);
+#ifdef UNITTESTS
static void DetectTlsSniRegisterTests(void);
+#endif
static InspectionBuffer *GetData(DetectEngineThreadCtx *det_ctx,
const DetectEngineTransforms *transforms,
Flow *f, const uint8_t flow_flags,
sigmatch_table[DETECT_AL_TLS_SNI].desc = "content modifier to match specifically and only on the TLS SNI buffer";
sigmatch_table[DETECT_AL_TLS_SNI].url = DOC_URL DOC_VERSION "/rules/tls-keywords.html#tls-sni";
sigmatch_table[DETECT_AL_TLS_SNI].Setup = DetectTlsSniSetup;
+#ifdef UNITTESTS
sigmatch_table[DETECT_AL_TLS_SNI].RegisterTests = DetectTlsSniRegisterTests;
-
+#endif
sigmatch_table[DETECT_AL_TLS_SNI].flags |= SIGMATCH_NOOPT;
sigmatch_table[DETECT_AL_TLS_SNI].flags |= SIGMATCH_INFO_STICKY_BUFFER;
}
#ifdef UNITTESTS
-
-/**
- * \test Test matching on a simple google.com SNI
- */
-static int DetectTlsSniTest01(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;
- 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));
-
- Packet *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 = mpm_default_matcher;
- de_ctx->flags |= DE_QUIET;
-
- Signature *s = DetectEngineAppendSig(de_ctx, "alert tls any any -> any any "
- "(msg:\"Test tls.sni option\"; "
- "tls.sni; content:\"google.com\"; sid:1;)");
- FAIL_IF_NULL(s);
-
- SigGroupBuild(de_ctx);
- DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
-
- int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS,
- STREAM_TOSERVER, buf, sizeof(buf));
- 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));
-
- AppLayerParserThreadCtxFree(alp_tctx);
- DetectEngineThreadCtxDeinit(&tv, det_ctx);
- DetectEngineCtxFree(de_ctx);
-
- StreamTcpFreeConfig(TRUE);
- FLOW_DESTROY(&f);
- UTHFreePacket(p);
-
- PASS;
-}
-
-/**
- * \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;
- 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));
-
- Packet *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 = mpm_default_matcher;
- de_ctx->flags |= DE_QUIET;
-
- Signature *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);
-
- int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS,
- STREAM_TOSERVER, buf, sizeof(buf));
- 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;
-}
-
-#endif
-
-static void DetectTlsSniRegisterTests(void)
-{
-#ifdef UNITTESTS
- UtRegisterTest("DetectTlsSniTest01", DetectTlsSniTest01);
- UtRegisterTest("DetectTlsSniTest02", DetectTlsSniTest02);
+#include "tests/detect-tls-sni.c"
#endif
-}
--- /dev/null
+/* Copyright (C) 2007-2019 Open Information Security Foundation
+ *
+ * You can copy, redistribute or modify this Program under the terms of
+ * the GNU General Public License version 2 as published by the Free
+ * Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/**
+ * \file
+ *
+ * \author Mats Klepsland <mats.klepsland@gmail.com>
+ *
+ */
+
+/**
+ * \test Test matching on a simple google.com SNI
+ */
+static int DetectTlsSniTest01(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;
+ 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));
+
+ Packet *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 = mpm_default_matcher;
+ de_ctx->flags |= DE_QUIET;
+
+ Signature *s = DetectEngineAppendSig(de_ctx, "alert tls any any -> any any "
+ "(msg:\"Test tls.sni option\"; "
+ "tls.sni; content:\"google.com\"; sid:1;)");
+ FAIL_IF_NULL(s);
+
+ SigGroupBuild(de_ctx);
+ DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
+
+ int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS,
+ STREAM_TOSERVER, buf, sizeof(buf));
+ 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));
+
+ AppLayerParserThreadCtxFree(alp_tctx);
+ DetectEngineThreadCtxDeinit(&tv, det_ctx);
+ DetectEngineCtxFree(de_ctx);
+
+ StreamTcpFreeConfig(TRUE);
+ FLOW_DESTROY(&f);
+ UTHFreePacket(p);
+
+ PASS;
+}
+
+/**
+ * \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;
+ 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));
+
+ Packet *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 = mpm_default_matcher;
+ de_ctx->flags |= DE_QUIET;
+
+ Signature *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);
+
+ int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS,
+ STREAM_TOSERVER, buf, sizeof(buf));
+ 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;
+}
+
+static void DetectTlsSniRegisterTests(void)
+{
+ UtRegisterTest("DetectTlsSniTest01", DetectTlsSniTest01);
+ UtRegisterTest("DetectTlsSniTest02", DetectTlsSniTest02);
+}