suricata
detect-rpc.c
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1 /* Copyright (C) 2007-2020 Open Information Security Foundation
2  *
3  * You can copy, redistribute or modify this Program under the terms of
4  * the GNU General Public License version 2 as published by the Free
5  * Software Foundation.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  * GNU General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * version 2 along with this program; if not, write to the Free Software
14  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15  * 02110-1301, USA.
16  */
17 
18 /**
19  * \file
20  *
21  * \author Pablo Rincon <pablo.rincon.crespo@gmail.com>
22  *
23  * Implements RPC keyword
24  */
25 
26 #include "suricata-common.h"
27 #include "decode.h"
28 
29 #include "detect.h"
30 #include "detect-rpc.h"
31 #include "detect-parse.h"
32 #include "detect-engine.h"
33 #include "detect-engine-mpm.h"
34 #include "detect-engine-siggroup.h"
35 #include "detect-engine-address.h"
36 #include "detect-engine-build.h"
37 
38 #include "util-unittest.h"
39 #include "util-unittest-helper.h"
40 #include "util-debug.h"
41 #include "util-byte.h"
42 
43 /**
44  * \brief Regex for parsing our rpc options
45  */
46 #define PARSE_REGEX "^\\s*([0-9]{0,10})\\s*(?:,\\s*([0-9]{0,10}|[*])\\s*(?:,\\s*([0-9]{0,10}|[*]))?)?\\s*$"
47 
48 static DetectParseRegex parse_regex;
49 
50 static int DetectRpcMatch (DetectEngineThreadCtx *, Packet *,
51  const Signature *, const SigMatchCtx *);
52 static int DetectRpcSetup (DetectEngineCtx *, Signature *, const char *);
53 #ifdef UNITTESTS
54 static void DetectRpcRegisterTests(void);
55 #endif
56 void DetectRpcFree(DetectEngineCtx *, void *);
57 
58 /**
59  * \brief Registration function for rpc keyword
60  */
61 void DetectRpcRegister (void)
62 {
64  sigmatch_table[DETECT_RPC].desc = "match RPC procedure numbers and RPC version";
65  sigmatch_table[DETECT_RPC].url = "/rules/payload-keywords.html#rpc";
66  sigmatch_table[DETECT_RPC].Match = DetectRpcMatch;
67  sigmatch_table[DETECT_RPC].Setup = DetectRpcSetup;
69 #ifdef UNITTESTS
70  sigmatch_table[DETECT_RPC].RegisterTests = DetectRpcRegisterTests;
71 #endif
72  DetectSetupParseRegexes(PARSE_REGEX, &parse_regex);
73 }
74 
75 /*
76  * returns 0: no match
77  * 1: match
78  * -1: error
79  */
80 
81 /**
82  * \brief This function is used to match rpc request set on a packet with those passed via rpc
83  *
84  * \param t pointer to thread vars
85  * \param det_ctx pointer to the pattern matcher thread
86  * \param p pointer to the current packet
87  * \param m pointer to the sigmatch that we will cast into DetectRpcData
88  *
89  * \retval 0 no match
90  * \retval 1 match
91  */
92 static int DetectRpcMatch (DetectEngineThreadCtx *det_ctx, Packet *p,
93  const Signature *s, const SigMatchCtx *ctx)
94 {
95  /* PrintRawDataFp(stdout, p->payload, p->payload_len); */
96  const DetectRpcData *rd = (const DetectRpcData *)ctx;
97  char *rpcmsg = (char *)p->payload;
98 
99  if (PKT_IS_TCP(p)) {
100  /* if Rpc msg too small */
101  if (p->payload_len < 28) {
102  SCLogDebug("TCP packet to small for the rpc msg (%u)", p->payload_len);
103  return 0;
104  }
105  rpcmsg += 4;
106  } else if (PKT_IS_UDP(p)) {
107  /* if Rpc msg too small */
108  if (p->payload_len < 24) {
109  SCLogDebug("UDP packet to small for the rpc msg (%u)", p->payload_len);
110  return 0;
111  }
112  } else {
113  SCLogDebug("No valid proto for the rpc message");
114  return 0;
115  }
116 
117  /* Point through the rpc msg structure. Use SCNtohl() to compare values */
118  RpcMsg *msg = (RpcMsg *)rpcmsg;
119 
120  /* If its not a call, no match */
121  if (SCNtohl(msg->type) != 0) {
122  SCLogDebug("RPC message type is not a call");
123  return 0;
124  }
125 
126  if (SCNtohl(msg->prog) != rd->program)
127  return 0;
128 
129  if ((rd->flags & DETECT_RPC_CHECK_VERSION) && SCNtohl(msg->vers) != rd->program_version)
130  return 0;
131 
132  if ((rd->flags & DETECT_RPC_CHECK_PROCEDURE) && SCNtohl(msg->proc) != rd->procedure)
133  return 0;
134 
135  SCLogDebug("prog:%u pver:%u proc:%u matched", SCNtohl(msg->prog), SCNtohl(msg->vers), SCNtohl(msg->proc));
136  return 1;
137 }
138 
139 /**
140  * \brief This function is used to parse rpc options passed via rpc keyword
141  *
142  * \param de_ctx Pointer to the detection engine context
143  * \param rpcstr Pointer to the user provided rpc options
144  *
145  * \retval rd pointer to DetectRpcData on success
146  * \retval NULL on failure
147  */
148 static DetectRpcData *DetectRpcParse (DetectEngineCtx *de_ctx, const char *rpcstr)
149 {
150  DetectRpcData *rd = NULL;
151  char *args[3] = {NULL,NULL,NULL};
152  int res = 0;
153  size_t pcre2_len;
154 
155  pcre2_match_data *match = NULL;
156  int ret = DetectParsePcreExec(&parse_regex, &match, rpcstr, 0, 0);
157  if (ret < 1 || ret > 4) {
158  SCLogError("parse error, ret %" PRId32 ", string %s", ret, rpcstr);
159  goto error;
160  }
161 
162  if (ret > 1) {
163  const char *str_ptr;
164  res = pcre2_substring_get_bynumber(match, 1, (PCRE2_UCHAR8 **)&str_ptr, &pcre2_len);
165  if (res < 0) {
166  SCLogError("pcre2_substring_get_bynumber failed");
167  goto error;
168  }
169  args[0] = (char *)str_ptr;
170 
171  if (ret > 2) {
172  res = pcre2_substring_get_bynumber(match, 2, (PCRE2_UCHAR8 **)&str_ptr, &pcre2_len);
173  if (res < 0) {
174  SCLogError("pcre2_substring_get_bynumber failed");
175  goto error;
176  }
177  args[1] = (char *)str_ptr;
178  }
179  if (ret > 3) {
180  res = pcre2_substring_get_bynumber(match, 3, (PCRE2_UCHAR8 **)&str_ptr, &pcre2_len);
181  if (res < 0) {
182  SCLogError("pcre2_substring_get_bynumber failed");
183  goto error;
184  }
185  args[2] = (char *)str_ptr;
186  }
187  }
188 
189  rd = SCMalloc(sizeof(DetectRpcData));
190  if (unlikely(rd == NULL))
191  goto error;
192  rd->flags = 0;
193  rd->program = 0;
194  rd->program_version = 0;
195  rd->procedure = 0;
196 
197  int i;
198  for (i = 0; i < (ret - 1); i++) {
199  if (args[i]) {
200  switch (i) {
201  case 0:
202  if (StringParseUint32(&rd->program, 10, strlen(args[i]), args[i]) <= 0) {
203  SCLogError("Invalid size specified for the rpc program:\"%s\"", args[i]);
204  goto error;
205  }
207  break;
208  case 1:
209  if (args[i][0] != '*') {
210  if (StringParseUint32(&rd->program_version, 10, strlen(args[i]), args[i]) <= 0) {
211  SCLogError(
212  "Invalid size specified for the rpc version:\"%s\"", args[i]);
213  goto error;
214  }
216  }
217  break;
218  case 2:
219  if (args[i][0] != '*') {
220  if (StringParseUint32(&rd->procedure, 10, strlen(args[i]), args[i]) <= 0) {
221  SCLogError(
222  "Invalid size specified for the rpc procedure:\"%s\"", args[i]);
223  goto error;
224  }
226  }
227  break;
228  }
229  } else {
230  SCLogError("invalid rpc option %s", rpcstr);
231  goto error;
232  }
233  }
234  for (i = 0; i < (ret -1); i++){
235  if (args[i] != NULL)
236  pcre2_substring_free((PCRE2_UCHAR8 *)args[i]);
237  }
238  pcre2_match_data_free(match);
239  return rd;
240 
241 error:
242  if (match) {
243  pcre2_match_data_free(match);
244  }
245  for (i = 0; i < (ret -1) && i < 3; i++){
246  if (args[i] != NULL)
247  pcre2_substring_free((PCRE2_UCHAR8 *)args[i]);
248  }
249  if (rd != NULL)
250  DetectRpcFree(de_ctx, rd);
251  return NULL;
252 
253 }
254 
255 /**
256  * \brief this function is used to add the parsed rpcdata into the current signature
257  *
258  * \param de_ctx pointer to the Detection Engine Context
259  * \param s pointer to the Current Signature
260  * \param m pointer to the Current SigMatch
261  * \param rpcstr pointer to the user provided rpc options
262  *
263  * \retval 0 on Success
264  * \retval -1 on Failure
265  */
266 int DetectRpcSetup (DetectEngineCtx *de_ctx, Signature *s, const char *rpcstr)
267 {
268  DetectRpcData *rd = NULL;
269  SigMatch *sm = NULL;
270 
271  rd = DetectRpcParse(de_ctx, rpcstr);
272  if (rd == NULL) goto error;
273 
274  sm = SigMatchAlloc();
275  if (sm == NULL)
276  goto error;
277 
278  sm->type = DETECT_RPC;
279  sm->ctx = (SigMatchCtx *)rd;
280 
283 
284  return 0;
285 
286 error:
287  if (rd != NULL) DetectRpcFree(de_ctx, rd);
288  if (sm != NULL) SCFree(sm);
289  return -1;
290 
291 }
292 
293 /**
294  * \brief this function will free memory associated with DetectRpcData
295  *
296  * \param rd pointer to DetectRpcData
297  */
299 {
300  SCEnter();
301 
302  if (ptr == NULL) {
303  SCReturn;
304  }
305 
306  DetectRpcData *rd = (DetectRpcData *)ptr;
307  SCFree(rd);
308 
309  SCReturn;
310 }
311 
312 #ifdef UNITTESTS
313 #include "detect-engine-alert.h"
314 /**
315  * \test DetectRpcTestParse01 is a test to make sure that we return "something"
316  * when given valid rpc opt
317  */
318 static int DetectRpcTestParse01 (void)
319 {
320  DetectRpcData *rd = DetectRpcParse(NULL, "123,444,555");
321  FAIL_IF_NULL(rd);
322 
323  DetectRpcFree(NULL, rd);
324  PASS;
325 }
326 
327 /**
328  * \test DetectRpcTestParse02 is a test for setting the established rpc opt
329  */
330 static int DetectRpcTestParse02 (void)
331 {
332  DetectRpcData *rd = NULL;
333  rd = DetectRpcParse(NULL, "111,222,333");
334  FAIL_IF_NULL(rd);
338  FAIL_IF_NOT(rd->program == 111);
339  FAIL_IF_NOT(rd->program_version == 222);
340  FAIL_IF_NOT(rd->procedure == 333);
341 
342  DetectRpcFree(NULL, rd);
343 
344  PASS;
345 }
346 
347 /**
348  * \test DetectRpcTestParse03 is a test for checking the wildcards
349  * and not specified fields
350  */
351 static int DetectRpcTestParse03 (void)
352 {
353  DetectRpcData *rd = NULL;
354 
355  rd = DetectRpcParse(NULL, "111,*,333");
356  FAIL_IF_NULL(rd);
357 
361  FAIL_IF_NOT(rd->program == 111);
362  FAIL_IF_NOT(rd->program_version == 0);
363  FAIL_IF_NOT(rd->procedure == 333);
364 
365  DetectRpcFree(NULL, rd);
366 
367  rd = DetectRpcParse(NULL, "111,222,*");
368  FAIL_IF_NULL(rd);
369 
373  FAIL_IF_NOT(rd->program == 111);
374  FAIL_IF_NOT(rd->program_version == 222);
375  FAIL_IF_NOT(rd->procedure == 0);
376 
377  DetectRpcFree(NULL, rd);
378 
379  rd = DetectRpcParse(NULL, "111,*,*");
380  FAIL_IF_NULL(rd);
381 
385  FAIL_IF_NOT(rd->program == 111);
386  FAIL_IF_NOT(rd->program_version == 0);
387  FAIL_IF_NOT(rd->procedure == 0);
388 
389  DetectRpcFree(NULL, rd);
390 
391  rd = DetectRpcParse(NULL, "111,222");
392  FAIL_IF_NULL(rd);
393 
397  FAIL_IF_NOT(rd->program == 111);
398  FAIL_IF_NOT(rd->program_version == 222);
399  FAIL_IF_NOT(rd->procedure == 0);
400 
401  DetectRpcFree(NULL, rd);
402 
403  rd = DetectRpcParse(NULL, "111");
404  FAIL_IF_NULL(rd);
405 
409  FAIL_IF_NOT(rd->program == 111);
410  FAIL_IF_NOT(rd->program_version == 0);
411  FAIL_IF_NOT(rd->procedure == 0);
412 
413  DetectRpcFree(NULL, rd);
414  PASS;
415 }
416 
417 /**
418  * \test DetectRpcTestParse04 is a test for check the discarding of empty options
419  */
420 static int DetectRpcTestParse04 (void)
421 {
422  DetectRpcData *rd = NULL;
423  rd = DetectRpcParse(NULL, "");
424 
425  FAIL_IF_NOT_NULL(rd);
426  DetectRpcFree(NULL, rd);
427 
428  PASS;
429 }
430 
431 /**
432  * \test DetectRpcTestParse05 is a test for check invalid values
433  */
434 static int DetectRpcTestParse05 (void)
435 {
436  DetectRpcData *rd = NULL;
437  rd = DetectRpcParse(NULL, "111,aaa,*");
438 
439  FAIL_IF_NOT_NULL(rd);
440  DetectRpcFree(NULL, rd);
441 
442  PASS;
443 }
444 
445 /**
446  * \test DetectRpcTestParse05 is a test to check the match function
447  */
448 static int DetectRpcTestSig01(void)
449 {
450  /* RPC Call */
451  uint8_t buf[] = {
452  /* XID */
453  0x64,0xb2,0xb3,0x75,
454  /* Message type: Call (0) */
455  0x00,0x00,0x00,0x00,
456  /* RPC Version (2) */
457  0x00,0x00,0x00,0x02,
458  /* Program portmap (100000) */
459  0x00,0x01,0x86,0xa0,
460  /* Program version (2) */
461  0x00,0x00,0x00,0x02,
462  /* Program procedure (3) = GETPORT */
463  0x00,0x00,0x00,0x03,
464  /* AUTH_NULL */
465  0x00,0x00,0x00,0x00,
466  /* Length 0 */
467  0x00,0x00,0x00,0x00,
468  /* VERIFIER NULL */
469  0x00,0x00,0x00,0x00,
470  /* Length 0 */
471  0x00,0x00,0x00,0x00,
472  /* Program portmap */
473  0x00,0x01,0x86,0xa2,
474  /* Version 2 */
475  0x00,0x00,0x00,0x02,
476  /* Proto UDP */
477  0x00,0x00,0x00,0x11,
478  /* Port 0 */
479  0x00,0x00,0x00,0x00 };
480  uint16_t buflen = sizeof(buf);
481  Packet *p = NULL;
482  Signature *s = NULL;
483  ThreadVars th_v;
484  DetectEngineThreadCtx *det_ctx;
485 
486  memset(&th_v, 0, sizeof(th_v));
487 
488  p = UTHBuildPacket(buf, buflen, IPPROTO_UDP);
489 
492 
493  de_ctx->flags |= DE_QUIET;
494 
496  "alert udp any any -> any any (msg:\"RPC Get Port Call\"; rpc:100000, 2, 3; sid:1;)");
497  FAIL_IF_NULL(s);
498 
500  "alert udp any any -> any any (msg:\"RPC Get Port Call\"; rpc:100000, 2, *; sid:2;)");
501  FAIL_IF_NULL(s);
502 
504  "alert udp any any -> any any (msg:\"RPC Get Port Call\"; rpc:100000, *, 3; sid:3;)");
505  FAIL_IF_NULL(s);
506 
508  "alert udp any any -> any any (msg:\"RPC Get Port Call\"; rpc:100000, *, *; sid:4;)");
509  FAIL_IF_NULL(s);
510 
511  s = DetectEngineAppendSig(de_ctx, "alert udp any any -> any any (msg:\"RPC Get XXX Call.. no "
512  "match\"; rpc:123456, *, 3; sid:5;)");
513  FAIL_IF_NULL(s);
514 
516  DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
517 
518  SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
519  FAIL_IF(PacketAlertCheck(p, 1) == 0);
520  FAIL_IF(PacketAlertCheck(p, 2) == 0);
521  FAIL_IF(PacketAlertCheck(p, 3) == 0);
522  FAIL_IF(PacketAlertCheck(p, 4) == 0);
523  FAIL_IF(PacketAlertCheck(p, 5) > 0);
524 
525  DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
527 
528  UTHFreePackets(&p, 1);
529 
530  PASS;
531 }
532 
533 /**
534  * \brief this function registers unit tests for DetectRpc
535  */
536 static void DetectRpcRegisterTests(void)
537 {
538  UtRegisterTest("DetectRpcTestParse01", DetectRpcTestParse01);
539  UtRegisterTest("DetectRpcTestParse02", DetectRpcTestParse02);
540  UtRegisterTest("DetectRpcTestParse03", DetectRpcTestParse03);
541  UtRegisterTest("DetectRpcTestParse04", DetectRpcTestParse04);
542  UtRegisterTest("DetectRpcTestParse05", DetectRpcTestParse05);
543  UtRegisterTest("DetectRpcTestSig01", DetectRpcTestSig01);
544 }
545 #endif /* UNITTESTS */
PKT_IS_UDP
#define PKT_IS_UDP(p)
Definition: decode.h:248
util-byte.h
SigTableElmt_::url
const char * url
Definition: detect.h:1288
detect-engine.h
FAIL_IF_NULL
#define FAIL_IF_NULL(expr)
Fail a test if expression evaluates to NULL.
Definition: util-unittest.h:89
SigMatchAppendSMToList
void SigMatchAppendSMToList(Signature *s, SigMatch *new, const int list)
Append a SigMatch to the list type.
Definition: detect-parse.c:437
SigTableElmt_::desc
const char * desc
Definition: detect.h:1287
SigTableElmt_::Free
void(* Free)(DetectEngineCtx *, void *)
Definition: detect.h:1275
detect-engine-siggroup.h
DetectParseRegex
Definition: detect-parse.h:62
SigTableElmt_::name
const char * name
Definition: detect.h:1285
PARSE_REGEX
#define PARSE_REGEX
Regex for parsing our rpc options.
Definition: detect-rpc.c:46
unlikely
#define unlikely(expr)
Definition: util-optimize.h:35
DetectRpcData_
Definition: detect-rpc.h:44
UtRegisterTest
void UtRegisterTest(const char *name, int(*TestFn)(void))
Register unit test.
Definition: util-unittest.c:103
DetectRpcData_::flags
uint8_t flags
Definition: detect-rpc.h:48
DetectRpcData_::procedure
uint32_t procedure
Definition: detect-rpc.h:47
SCLogDebug
#define SCLogDebug(...)
Definition: util-debug.h:269
RpcMsg_
Definition: detect-rpc.h:35
Packet_::payload
uint8_t * payload
Definition: decode.h:577
PacketAlertCheck
int PacketAlertCheck(Packet *p, uint32_t sid)
Check if a certain sid alerted, this is used in the test functions.
Definition: detect-engine-alert.c:141
DetectRpcRegister
void DetectRpcRegister(void)
Registration function for rpc keyword.
Definition: detect-rpc.c:61
DetectEngineCtx_
main detection engine ctx
Definition: detect.h:827
DetectRpcData_::program_version
uint32_t program_version
Definition: detect-rpc.h:46
DetectEngineCtxFree
void DetectEngineCtxFree(DetectEngineCtx *)
Free a DetectEngineCtx::
Definition: detect-engine.c:2592
DETECT_RPC_CHECK_PROCEDURE
#define DETECT_RPC_CHECK_PROCEDURE
Definition: detect-rpc.h:32
DE_QUIET
#define DE_QUIET
Definition: detect.h:315
UTHBuildPacket
Packet * UTHBuildPacket(uint8_t *payload, uint16_t payload_len, uint8_t ipproto)
UTHBuildPacket is a wrapper that build packets with default ip and port fields.
Definition: util-unittest-helper.c:337
SigMatchSignatures
void SigMatchSignatures(ThreadVars *tv, DetectEngineCtx *de_ctx, DetectEngineThreadCtx *det_ctx, Packet *p)
wrapper for old tests
Definition: detect.c:1824
DetectParsePcreExec
int DetectParsePcreExec(DetectParseRegex *parse_regex, pcre2_match_data **match, const char *str, int start_offset, int options)
Definition: detect-parse.c:2629
DetectEngineAppendSig
Signature * DetectEngineAppendSig(DetectEngineCtx *, const char *)
Parse and append a Signature into the Detection Engine Context signature list.
Definition: detect-parse.c:2575
SigTableElmt_::Setup
int(* Setup)(DetectEngineCtx *, Signature *, const char *)
Definition: detect.h:1270
Packet_::payload_len
uint16_t payload_len
Definition: decode.h:578
DETECT_RPC
@ DETECT_RPC
Definition: detect-engine-register.h:84
util-unittest.h
util-unittest-helper.h
FAIL_IF_NOT
#define FAIL_IF_NOT(expr)
Fail a test if expression evaluates to false.
Definition: util-unittest.h:82
detect-rpc.h
PKT_IS_TCP
#define PKT_IS_TCP(p)
Definition: decode.h:247
decode.h
FAIL_IF_NOT_NULL
#define FAIL_IF_NOT_NULL(expr)
Fail a test if expression evaluates to non-NULL.
Definition: util-unittest.h:96
util-debug.h
PASS
#define PASS
Pass the test.
Definition: util-unittest.h:105
de_ctx
DetectEngineCtx * de_ctx
Definition: fuzz_siginit.c:17
DetectEngineThreadCtx_
Definition: detect.h:1075
DetectRpcData_::program
uint32_t program
Definition: detect-rpc.h:45
DetectSetupParseRegexes
void DetectSetupParseRegexes(const char *parse_str, DetectParseRegex *detect_parse)
Definition: detect-parse.c:2753
SCEnter
#define SCEnter(...)
Definition: util-debug.h:271
detect-engine-mpm.h
detect.h
ThreadVars_
Per thread variable structure.
Definition: threadvars.h:57
StringParseUint32
int StringParseUint32(uint32_t *res, int base, size_t len, const char *str)
Definition: util-byte.c:313
DETECT_SM_LIST_MATCH
@ DETECT_SM_LIST_MATCH
Definition: detect.h:108
SigMatch_::ctx
SigMatchCtx * ctx
Definition: detect.h:344
SCReturn
#define SCReturn
Definition: util-debug.h:273
Signature_::flags
uint32_t flags
Definition: detect.h:583
Packet_
Definition: decode.h:430
detect-engine-build.h
detect-engine-alert.h
SigTableElmt_::Match
int(* Match)(DetectEngineThreadCtx *, Packet *, const Signature *, const SigMatchCtx *)
Definition: detect.h:1253
SigMatchAlloc
SigMatch * SigMatchAlloc(void)
Definition: detect-parse.c:322
SigGroupBuild
int SigGroupBuild(DetectEngineCtx *de_ctx)
Convert the signature list into the runtime match structure.
Definition: detect-engine-build.c:1971
SigMatchCtx_
Used to start a pointer to SigMatch context Should never be dereferenced without casting to something...
Definition: detect.h:336
DetectEngineThreadCtxInit
TmEcode DetectEngineThreadCtxInit(ThreadVars *, void *, void **)
initialize thread specific detection engine context
Definition: detect-engine.c:3308
FAIL_IF
#define FAIL_IF(expr)
Fail a test if expression evaluates to true.
Definition: util-unittest.h:71
suricata-common.h
DetectEngineThreadCtxDeinit
TmEcode DetectEngineThreadCtxDeinit(ThreadVars *, void *)
Definition: detect-engine.c:3522
SigMatch_::type
uint16_t type
Definition: detect.h:342
sigmatch_table
SigTableElmt sigmatch_table[DETECT_TBLSIZE]
Definition: detect-parse.c:129
DetectRpcFree
void DetectRpcFree(DetectEngineCtx *, void *)
this function will free memory associated with DetectRpcData
Definition: detect-rpc.c:298
SCMalloc
#define SCMalloc(sz)
Definition: util-mem.h:47
SCLogError
#define SCLogError(...)
Macro used to log ERROR messages.
Definition: util-debug.h:261
SCFree
#define SCFree(p)
Definition: util-mem.h:61
SCNtohl
#define SCNtohl(x)
Definition: suricata-common.h:408
detect-parse.h
Signature_
Signature container.
Definition: detect.h:582
SigMatch_
a single match condition for a signature
Definition: detect.h:341
DetectEngineCtxInit
DetectEngineCtx * DetectEngineCtxInit(void)
Definition: detect-engine.c:2553
DETECT_RPC_CHECK_PROGRAM
#define DETECT_RPC_CHECK_PROGRAM
Definition: detect-rpc.h:30
DetectEngineCtx_::flags
uint8_t flags
Definition: detect.h:829
msg
const char * msg
Definition: app-layer-htp.c:576
DETECT_RPC_CHECK_VERSION
#define DETECT_RPC_CHECK_VERSION
Definition: detect-rpc.h:31
detect-engine-address.h
SigTableElmt_::RegisterTests
void(* RegisterTests)(void)
Definition: detect.h:1277
SIG_FLAG_REQUIRE_PACKET
#define SIG_FLAG_REQUIRE_PACKET
Definition: detect.h:242
UTHFreePackets
void UTHFreePackets(Packet **p, int numpkts)
UTHFreePackets: function to release the allocated data from UTHBuildPacket and the packet itself.
Definition: util-unittest-helper.c:468