suricata
output-json-drop.c
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1 /* Copyright (C) 2007-2023 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 Tom DeCanio <td@npulsetech.com>
22  *
23  * JSON Drop log module to log the dropped packet information
24  *
25  */
26 
27 #include "suricata-common.h"
28 #include "packet.h"
29 #include "detect.h"
30 #include "flow.h"
31 #include "conf.h"
32 
33 #include "threads.h"
34 #include "tm-threads.h"
35 #include "threadvars.h"
36 #include "util-debug.h"
37 
38 #include "decode-ipv4.h"
39 #include "detect-parse.h"
40 #include "detect-engine.h"
41 #include "detect-engine-mpm.h"
42 #include "detect-reference.h"
43 
44 #include "output.h"
45 #include "output-json.h"
46 #include "output-json-alert.h"
47 #include "output-json-drop.h"
48 
49 #include "util-unittest.h"
50 #include "util-unittest-helper.h"
52 #include "util-privs.h"
53 #include "util-print.h"
54 #include "util-proto-name.h"
55 #include "util-logopenfile.h"
56 #include "util-time.h"
57 #include "util-buffer.h"
58 
59 #include "action-globals.h"
60 
61 #define MODULE_NAME "JsonDropLog"
62 
63 #define LOG_DROP_ALERTS BIT_U8(1)
64 #define LOG_DROP_VERDICT BIT_U8(2)
65 
66 typedef struct JsonDropOutputCtx_ {
67  uint8_t flags;
70 
71 typedef struct JsonDropLogThread_ {
75 
76 /* default to true as this has been the default behavior for a long time */
77 static int g_droplog_flows_start = 1;
78 
79 /**
80  * \brief Log the dropped packets in netfilter format when engine is running
81  * in inline mode
82  *
83  * \param tv Pointer the current thread variables
84  * \param p Pointer the packet which is being logged
85  *
86  * \return return TM_ECODE_OK on success
87  */
88 static int DropLogJSON (JsonDropLogThread *aft, const Packet *p)
89 {
90  JsonDropOutputCtx *drop_ctx = aft->drop_ctx;
91 
94 
95  JsonBuilder *js = CreateEveHeader(p, LOG_DIR_PACKET, "drop", &addr, drop_ctx->eve_ctx);
96  if (unlikely(js == NULL))
97  return TM_ECODE_OK;
98 
99  if (p->flow != NULL) {
100  if (p->flowflags & FLOW_PKT_TOSERVER) {
101  jb_set_string(js, "direction", "to_server");
102  } else {
103  jb_set_string(js, "direction", "to_client");
104  }
105  }
106 
107  jb_open_object(js, "drop");
108 
109  uint16_t proto = 0;
110  if (PacketIsIPv4(p)) {
111  const IPV4Hdr *ip4h = PacketGetIPv4(p);
112  jb_set_uint(js, "len", IPV4_GET_RAW_IPLEN(ip4h));
113  jb_set_uint(js, "tos", IPV4_GET_RAW_IPTOS(ip4h));
114  jb_set_uint(js, "ttl", IPV4_GET_RAW_IPTTL(ip4h));
115  jb_set_uint(js, "ipid", IPV4_GET_RAW_IPID(ip4h));
116  proto = IPV4_GET_RAW_IPPROTO(ip4h);
117  } else if (PacketIsIPv6(p)) {
118  const IPV6Hdr *ip6h = PacketGetIPv6(p);
119  jb_set_uint(js, "len", IPV6_GET_RAW_PLEN(ip6h));
120  jb_set_uint(js, "tc", IPV6_GET_RAW_CLASS(ip6h));
121  jb_set_uint(js, "hoplimit", IPV6_GET_RAW_HLIM(ip6h));
122  jb_set_uint(js, "flowlbl", IPV6_GET_RAW_FLOW(ip6h));
123  proto = IPV6_GET_L4PROTO(p);
124  }
125  switch (proto) {
126  case IPPROTO_TCP:
127  if (PacketIsTCP(p)) {
128  const TCPHdr *tcph = PacketGetTCP(p);
129  jb_set_uint(js, "tcpseq", TCP_GET_RAW_SEQ(tcph));
130  jb_set_uint(js, "tcpack", TCP_GET_RAW_ACK(tcph));
131  jb_set_uint(js, "tcpwin", TCP_GET_RAW_WINDOW(tcph));
132  jb_set_bool(js, "syn", TCP_ISSET_FLAG_RAW_SYN(tcph) ? true : false);
133  jb_set_bool(js, "ack", TCP_ISSET_FLAG_RAW_ACK(tcph) ? true : false);
134  jb_set_bool(js, "psh", TCP_ISSET_FLAG_RAW_PUSH(tcph) ? true : false);
135  jb_set_bool(js, "rst", TCP_ISSET_FLAG_RAW_RST(tcph) ? true : false);
136  jb_set_bool(js, "urg", TCP_ISSET_FLAG_RAW_URG(tcph) ? true : false);
137  jb_set_bool(js, "fin", TCP_ISSET_FLAG_RAW_FIN(tcph) ? true : false);
138  jb_set_uint(js, "tcpres", TCP_GET_RAW_X2(tcph));
139  jb_set_uint(js, "tcpurgp", TCP_GET_RAW_URG_POINTER(tcph));
140  }
141  break;
142  case IPPROTO_UDP:
143  if (PacketIsUDP(p)) {
144  const UDPHdr *udph = PacketGetUDP(p);
145  jb_set_uint(js, "udplen", UDP_GET_RAW_LEN(udph));
146  }
147  break;
148  case IPPROTO_ICMP:
149  if (PacketIsICMPv4(p)) {
150  jb_set_uint(js, "icmp_id", ICMPV4_GET_ID(p));
151  jb_set_uint(js, "icmp_seq", ICMPV4_GET_SEQ(p));
152  } else if (PacketIsICMPv6(p)) {
153  jb_set_uint(js, "icmp_id", ICMPV6_GET_ID(p));
154  jb_set_uint(js, "icmp_seq", ICMPV6_GET_SEQ(p));
155  }
156  break;
157  }
158  if (p->drop_reason != 0) {
159  const char *str = PacketDropReasonToString(p->drop_reason);
160  jb_set_string(js, "reason", str);
161  }
162 
163  /* Close drop. */
164  jb_close(js);
165 
166  if (aft->drop_ctx->flags & LOG_DROP_VERDICT) {
167  EveAddVerdict(js, p);
168  }
169 
170  if (aft->drop_ctx->flags & LOG_DROP_ALERTS) {
171  int logged = 0;
172  int i;
173  for (i = 0; i < p->alerts.cnt; i++) {
174  const PacketAlert *pa = &p->alerts.alerts[i];
175  if (unlikely(pa->s == NULL)) {
176  continue;
177  }
179  ((pa->action & ACTION_DROP) && EngineModeIsIPS()))
180  {
181  AlertJsonHeader(NULL, p, pa, js, 0, &addr, NULL);
182  logged = 1;
183  break;
184  }
185  }
186  if (logged == 0) {
187  if (p->alerts.drop.action != 0) {
188  const PacketAlert *pa = &p->alerts.drop;
189  AlertJsonHeader(NULL, p, pa, js, 0, &addr, NULL);
190  }
191  }
192  }
193 
194  OutputJsonBuilderBuffer(js, aft->ctx);
195  jb_free(js);
196 
197  return TM_ECODE_OK;
198 }
199 
200 static TmEcode JsonDropLogThreadInit(ThreadVars *t, const void *initdata, void **data)
201 {
202  JsonDropLogThread *aft = SCCalloc(1, sizeof(JsonDropLogThread));
203  if (unlikely(aft == NULL))
204  return TM_ECODE_FAILED;
205 
206  if(initdata == NULL)
207  {
208  SCLogDebug("Error getting context for EveLogDrop. \"initdata\" argument NULL");
209  goto error_exit;
210  }
211 
212  /** Use the Output Context (file pointer and mutex) */
213  aft->drop_ctx = ((OutputCtx *)initdata)->data;
214  aft->ctx = CreateEveThreadCtx(t, aft->drop_ctx->eve_ctx);
215  if (!aft->ctx) {
216  goto error_exit;
217  }
218 
219  *data = (void *)aft;
220  return TM_ECODE_OK;
221 
222 error_exit:
223  SCFree(aft);
224  return TM_ECODE_FAILED;
225 }
226 
227 static TmEcode JsonDropLogThreadDeinit(ThreadVars *t, void *data)
228 {
229  JsonDropLogThread *aft = (JsonDropLogThread *)data;
230  if (aft == NULL) {
231  return TM_ECODE_OK;
232  }
233 
234  FreeEveThreadCtx(aft->ctx);
235 
236  /* clear memory */
237  memset(aft, 0, sizeof(*aft));
238 
239  SCFree(aft);
240  return TM_ECODE_OK;
241 }
242 
243 static void JsonDropOutputCtxFree(JsonDropOutputCtx *drop_ctx)
244 {
245  if (drop_ctx != NULL) {
246  SCFree(drop_ctx);
247  }
248 }
249 
250 static void JsonDropLogDeInitCtxSub(OutputCtx *output_ctx)
251 {
253 
254  JsonDropOutputCtx *drop_ctx = output_ctx->data;
255  SCFree(drop_ctx);
256  SCLogDebug("cleaning up sub output_ctx %p", output_ctx);
257  SCFree(output_ctx);
258 }
259 
260 static OutputInitResult JsonDropLogInitCtxSub(ConfNode *conf, OutputCtx *parent_ctx)
261 {
262  OutputInitResult result = { NULL, false };
263  if (OutputDropLoggerEnable() != 0) {
264  SCLogError("only one 'drop' logger "
265  "can be enabled");
266  return result;
267  }
268 
269  OutputJsonCtx *ajt = parent_ctx->data;
270 
271  JsonDropOutputCtx *drop_ctx = SCCalloc(1, sizeof(*drop_ctx));
272  if (drop_ctx == NULL)
273  return result;
274 
275  OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx));
276  if (unlikely(output_ctx == NULL)) {
277  JsonDropOutputCtxFree(drop_ctx);
278  return result;
279  }
280 
281  if (conf) {
282  const char *extended = ConfNodeLookupChildValue(conf, "alerts");
283  if (extended != NULL) {
284  if (ConfValIsTrue(extended)) {
285  drop_ctx->flags |= LOG_DROP_ALERTS;
286  }
287  }
288  extended = ConfNodeLookupChildValue(conf, "flows");
289  if (extended != NULL) {
290  if (strcasecmp(extended, "start") == 0) {
291  g_droplog_flows_start = 1;
292  } else if (strcasecmp(extended, "all") == 0) {
293  g_droplog_flows_start = 0;
294  } else {
295  SCLogWarning("valid options for "
296  "'flow' are 'start' and 'all'");
297  }
298  }
299  extended = ConfNodeLookupChildValue(conf, "verdict");
300  if (extended != NULL) {
301  if (ConfValIsTrue(extended)) {
302  drop_ctx->flags |= LOG_DROP_VERDICT;
303  }
304  }
305  }
306 
307  drop_ctx->eve_ctx = ajt;
308 
309  output_ctx->data = drop_ctx;
310  output_ctx->DeInit = JsonDropLogDeInitCtxSub;
311 
312  result.ctx = output_ctx;
313  result.ok = true;
314  return result;
315 }
316 
317 /**
318  * \brief Log the dropped packets when engine is running in inline mode
319  *
320  * \param tv Pointer the current thread variables
321  * \param data Pointer to the droplog struct
322  * \param p Pointer the packet which is being logged
323  *
324  * \retval 0 on success
325  */
326 static int JsonDropLogger(ThreadVars *tv, void *thread_data, const Packet *p)
327 {
328  JsonDropLogThread *td = thread_data;
329  int r = DropLogJSON(td, p);
330  if (r < 0)
331  return -1;
332 
333  if (!g_droplog_flows_start)
334  return 0;
335 
336  if (p->flow) {
337  if (p->flow->flags & FLOW_ACTION_DROP) {
340  else if (PKT_IS_TOCLIENT(p) && !(p->flow->flags & FLOW_TOCLIENT_DROP_LOGGED))
342  }
343  }
344  return 0;
345 }
346 
347 /**
348  * \brief Check if we need to drop-log this packet
349  *
350  * \param tv Pointer the current thread variables
351  * \param p Pointer the packet which is tested
352  *
353  * \retval bool true or false
354  */
355 static bool JsonDropLogCondition(ThreadVars *tv, void *data, const Packet *p)
356 {
357  if (!EngineModeIsIPS()) {
358  SCLogDebug("engine is not running in inline mode, so returning");
359  return false;
360  }
361  if (PKT_IS_PSEUDOPKT(p)) {
362  SCLogDebug("drop log doesn't log pseudo packets");
363  return false;
364  }
365 
366  if (!(PacketCheckAction(p, ACTION_DROP))) {
367  return false;
368  }
369 
370  if (g_droplog_flows_start && p->flow != NULL) {
371  bool ret = false;
372 
373  /* for a flow that will be dropped fully, log just once per direction */
374  if (p->flow->flags & FLOW_ACTION_DROP) {
376  ret = true;
377  else if (PKT_IS_TOCLIENT(p) && !(p->flow->flags & FLOW_TOCLIENT_DROP_LOGGED))
378  ret = true;
379  }
380 
381  /* if drop is caused by signature, log anyway */
382  if (p->alerts.drop.action != 0)
383  ret = true;
384 
385  return ret;
386  }
387 
388  return true;
389 }
390 
392 {
394  "eve-log.drop", JsonDropLogInitCtxSub, JsonDropLogger,
395  JsonDropLogCondition, JsonDropLogThreadInit, JsonDropLogThreadDeinit,
396  NULL);
397 }
PKT_IS_TOCLIENT
#define PKT_IS_TOCLIENT(p)
Definition: decode.h:244
TCP_GET_RAW_SEQ
#define TCP_GET_RAW_SEQ(tcph)
Definition: decode-tcp.h:80
PacketCheckAction
bool PacketCheckAction(const Packet *p, const uint8_t a)
Definition: packet.c:48
tm-threads.h
IPV4_GET_RAW_IPID
#define IPV4_GET_RAW_IPID(ip4h)
Definition: decode-ipv4.h:99
TCP_GET_RAW_X2
#define TCP_GET_RAW_X2(tcph)
Definition: decode-tcp.h:73
detect-engine.h
OutputDropLoggerEnable
int OutputDropLoggerEnable(void)
Definition: output.c:687
IPV6_GET_RAW_PLEN
#define IPV6_GET_RAW_PLEN(ip6h)
Definition: decode-ipv6.h:66
PacketAlert_::s
const struct Signature_ * s
Definition: decode.h:252
JsonDropLogThread_::drop_ctx
JsonDropOutputCtx * drop_ctx
Definition: output-json-drop.c:72
IPV6_GET_RAW_HLIM
#define IPV6_GET_RAW_HLIM(ip6h)
Definition: decode-ipv6.h:67
IPV4_GET_RAW_IPPROTO
#define IPV4_GET_RAW_IPPROTO(ip4h)
Definition: decode-ipv4.h:103
PKT_IS_PSEUDOPKT
#define PKT_IS_PSEUDOPKT(p)
return 1 if the packet is a pseudo packet
Definition: decode.h:1330
unlikely
#define unlikely(expr)
Definition: util-optimize.h:35
ACTION_REJECT
#define ACTION_REJECT
Definition: action-globals.h:31
JsonDropLogThread_
Definition: output-json-drop.c:71
PacketDropReasonToString
const char * PacketDropReasonToString(enum PacketDropReason r)
Definition: decode.c:871
SCLogDebug
#define SCLogDebug(...)
Definition: util-debug.h:269
FreeEveThreadCtx
void FreeEveThreadCtx(OutputJsonThreadCtx *ctx)
Definition: output-json-common.c:58
PacketAlerts_::cnt
uint16_t cnt
Definition: decode.h:274
action-globals.h
threads.h
OutputJsonCtx_
Definition: output-json.h:81
ICMPV6_GET_SEQ
#define ICMPV6_GET_SEQ(p)
Definition: decode-icmpv6.h:109
IPV6_GET_RAW_CLASS
#define IPV6_GET_RAW_CLASS(ip6h)
Definition: decode-ipv6.h:63
logged
int logged
Definition: app-layer-htp.h:1
JsonDropOutputCtx
struct JsonDropOutputCtx_ JsonDropOutputCtx
OutputJsonBuilderBuffer
int OutputJsonBuilderBuffer(JsonBuilder *js, OutputJsonThreadCtx *ctx)
Definition: output-json.c:931
PacketAlerts_::alerts
PacketAlert * alerts
Definition: decode.h:277
CreateEveThreadCtx
OutputJsonThreadCtx * CreateEveThreadCtx(ThreadVars *t, OutputJsonCtx *ctx)
Definition: output-json-common.c:29
json_addr_info_zero
const JsonAddrInfo json_addr_info_zero
Definition: output-json.c:80
FLOW_PKT_TOSERVER
#define FLOW_PKT_TOSERVER
Definition: flow.h:228
IPV6_GET_L4PROTO
#define IPV6_GET_L4PROTO(p)
Definition: decode-ipv6.h:75
ICMPV6_GET_ID
#define ICMPV6_GET_ID(p)
Definition: decode-icmpv6.h:107
PacketAlerts_::drop
PacketAlert drop
Definition: decode.h:280
util-privs.h
FLOW_ACTION_DROP
#define FLOW_ACTION_DROP
Definition: flow.h:68
FLOW_TOSERVER_DROP_LOGGED
#define FLOW_TOSERVER_DROP_LOGGED
Definition: flow.h:76
proto
uint8_t proto
Definition: decode-template.h:0
Packet_::flowflags
uint8_t flowflags
Definition: decode.h:513
TM_ECODE_FAILED
@ TM_ECODE_FAILED
Definition: tm-threads-common.h:85
TCP_GET_RAW_WINDOW
#define TCP_GET_RAW_WINDOW(tcph)
Definition: decode-tcp.h:83
Packet_::alerts
PacketAlerts alerts
Definition: decode.h:603
util-unittest.h
ConfValIsTrue
int ConfValIsTrue(const char *val)
Check if a value is true.
Definition: conf.c:537
util-unittest-helper.h
OutputCtx_::data
void * data
Definition: tm-modules.h:88
TM_ECODE_OK
@ TM_ECODE_OK
Definition: tm-threads-common.h:84
OutputCtx_
Definition: tm-modules.h:85
PacketAlert_::action
uint8_t action
Definition: decode.h:250
OutputJsonThreadCtx_
Definition: output-json.h:89
detect-reference.h
ICMPV4_GET_SEQ
#define ICMPV4_GET_SEQ(p)
Definition: decode-icmpv4.h:238
ACTION_REJECT_DST
#define ACTION_REJECT_DST
Definition: action-globals.h:32
util-debug.h
UDP_GET_RAW_LEN
#define UDP_GET_RAW_LEN(udph)
Definition: decode-udp.h:30
LOG_DROP_ALERTS
#define LOG_DROP_ALERTS
Definition: output-json-drop.c:63
IPV4_GET_RAW_IPTOS
#define IPV4_GET_RAW_IPTOS(ip4h)
Definition: decode-ipv4.h:97
PKT_IS_TOSERVER
#define PKT_IS_TOSERVER(p)
Definition: decode.h:243
OutputInitResult_::ctx
OutputCtx * ctx
Definition: output.h:47
output-json.h
JsonDropLogThread_::ctx
OutputJsonThreadCtx * ctx
Definition: output-json-drop.c:73
CreateEveHeader
JsonBuilder * CreateEveHeader(const Packet *p, enum OutputJsonLogDirection dir, const char *event_type, JsonAddrInfo *addr, OutputJsonCtx *eve_ctx)
Definition: output-json.c:780
util-print.h
detect-engine-mpm.h
TCP_ISSET_FLAG_RAW_URG
#define TCP_ISSET_FLAG_RAW_URG(p)
Definition: decode-tcp.h:124
detect.h
ThreadVars_
Per thread variable structure.
Definition: threadvars.h:57
util-time.h
OutputInitResult_::ok
bool ok
Definition: output.h:48
SCLogWarning
#define SCLogWarning(...)
Macro used to log WARNING messages.
Definition: util-debug.h:249
TCP_ISSET_FLAG_RAW_ACK
#define TCP_ISSET_FLAG_RAW_ACK(p)
Definition: decode-tcp.h:123
LOG_DROP_VERDICT
#define LOG_DROP_VERDICT
Definition: output-json-drop.c:64
JsonAddrInfo_
Definition: output-json.h:47
IPV6Hdr_
Definition: decode-ipv6.h:32
Packet_
Definition: decode.h:482
IPV4_GET_RAW_IPTTL
#define IPV4_GET_RAW_IPTTL(ip4h)
Definition: decode-ipv4.h:102
conf.h
TmEcode
TmEcode
Definition: tm-threads-common.h:83
TCP_ISSET_FLAG_RAW_FIN
#define TCP_ISSET_FLAG_RAW_FIN(p)
Definition: decode-tcp.h:119
AlertJsonHeader
void AlertJsonHeader(void *ctx, const Packet *p, const PacketAlert *pa, JsonBuilder *js, uint16_t flags, JsonAddrInfo *addr, char *xff_buffer)
Definition: output-json-alert.c:184
util-proto-name.h
JsonDropOutputCtx_::flags
uint8_t flags
Definition: output-json-drop.c:67
IPV4Hdr_
Definition: decode-ipv4.h:72
ACTION_REJECT_BOTH
#define ACTION_REJECT_BOTH
Definition: action-globals.h:33
decode-ipv4.h
ICMPV4_GET_ID
#define ICMPV4_GET_ID(p)
Definition: decode-icmpv4.h:236
OutputInitResult_
Definition: output.h:46
Packet_::flow
struct Flow_ * flow
Definition: decode.h:521
LOG_DIR_PACKET
@ LOG_DIR_PACKET
Definition: output-json.h:37
suricata-common.h
OutputCtx_::DeInit
void(* DeInit)(struct OutputCtx_ *)
Definition: tm-modules.h:91
OutputRegisterPacketSubModule
void OutputRegisterPacketSubModule(LoggerId id, const char *parent_name, const char *name, const char *conf_name, OutputInitSubFunc InitFunc, PacketLogger PacketLogFunc, PacketLogCondition PacketConditionFunc, ThreadInitFunc ThreadInit, ThreadDeinitFunc ThreadDeinit, ThreadExitPrintStatsFunc ThreadExitPrintStats)
Register a packet output sub-module.
Definition: output.c:210
MODULE_NAME
#define MODULE_NAME
Definition: output-json-drop.c:61
packet.h
EveAddVerdict
void EveAddVerdict(JsonBuilder *jb, const Packet *p)
Build verdict object.
Definition: output-json-alert.c:465
TCP_ISSET_FLAG_RAW_PUSH
#define TCP_ISSET_FLAG_RAW_PUSH(p)
Definition: decode-tcp.h:122
ACTION_DROP
#define ACTION_DROP
Definition: action-globals.h:30
LOGGER_JSON_DROP
@ LOGGER_JSON_DROP
Definition: suricata-common.h:481
IPV6_GET_RAW_FLOW
#define IPV6_GET_RAW_FLOW(ip6h)
Definition: decode-ipv6.h:64
util-classification-config.h
UDPHdr_
Definition: decode-udp.h:42
tv
ThreadVars * tv
Definition: fuzz_decodepcapfile.c:32
output-json-alert.h
threadvars.h
str
#define str(s)
Definition: suricata-common.h:291
SCLogError
#define SCLogError(...)
Macro used to log ERROR messages.
Definition: util-debug.h:261
JsonDropLogThread
struct JsonDropLogThread_ JsonDropLogThread
SCFree
#define SCFree(p)
Definition: util-mem.h:61
ConfNode_
Definition: conf.h:32
util-logopenfile.h
JsonDropOutputCtx_
Definition: output-json-drop.c:66
Flow_::flags
uint32_t flags
Definition: flow.h:426
JsonDropLogRegister
void JsonDropLogRegister(void)
Definition: output-json-drop.c:391
detect-parse.h
util-buffer.h
TCP_ISSET_FLAG_RAW_SYN
#define TCP_ISSET_FLAG_RAW_SYN(p)
Definition: decode-tcp.h:120
TCP_ISSET_FLAG_RAW_RST
#define TCP_ISSET_FLAG_RAW_RST(p)
Definition: decode-tcp.h:121
FLOW_TOCLIENT_DROP_LOGGED
#define FLOW_TOCLIENT_DROP_LOGGED
Definition: flow.h:78
EngineModeIsIPS
int EngineModeIsIPS(void)
Definition: suricata.c:231
Packet_::drop_reason
uint8_t drop_reason
Definition: decode.h:630
PacketAlert_
Definition: decode.h:248
JsonAddrInfoInit
void JsonAddrInfoInit(const Packet *p, enum OutputJsonLogDirection dir, JsonAddrInfo *addr)
Definition: output-json.c:468
IPV4_GET_RAW_IPLEN
#define IPV4_GET_RAW_IPLEN(ip4h)
Definition: decode-ipv4.h:98
TCP_GET_RAW_URG_POINTER
#define TCP_GET_RAW_URG_POINTER(tcph)
Definition: decode-tcp.h:84
flow.h
SCCalloc
#define SCCalloc(nm, sz)
Definition: util-mem.h:53
TCP_GET_RAW_ACK
#define TCP_GET_RAW_ACK(tcph)
Definition: decode-tcp.h:81
TCPHdr_
Definition: decode-tcp.h:149
JsonDropOutputCtx_::eve_ctx
OutputJsonCtx * eve_ctx
Definition: output-json-drop.c:68
output.h
OutputDropLoggerDisable
void OutputDropLoggerDisable(void)
Definition: output.c:695
output-json-drop.h
ConfNodeLookupChildValue
const char * ConfNodeLookupChildValue(const ConfNode *node, const char *name)
Lookup the value of a child configuration node by name.
Definition: conf.c:814