suricata
decode.h
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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 Victor Julien <victor@inliniac.net>
22  */
23 
24 #ifndef __DECODE_H__
25 #define __DECODE_H__
26 
27 //#define DBG_THREADS
28 #define COUNTERS
29 
30 #include "suricata-common.h"
31 #include "suricata-plugin.h"
32 #include "threadvars.h"
33 #include "util-debug.h"
34 #include "decode-events.h"
35 #include "flow-worker.h"
36 
37 #ifdef HAVE_NAPATECH
38 #include "util-napatech.h"
39 #endif /* HAVE_NAPATECH */
40 
41 
42 typedef enum {
49 
50 enum PktSrcEnum {
63 };
64 
65 #include "source-nflog.h"
66 #include "source-nfq.h"
67 #include "source-ipfw.h"
68 #include "source-pcap.h"
69 #include "source-af-packet.h"
70 #include "source-netmap.h"
71 #include "source-windivert.h"
72 #ifdef HAVE_PF_RING_FLOW_OFFLOAD
73 #include "source-pfring.h"
74 #endif
75 
76 #include "action-globals.h"
77 
78 #include "decode-erspan.h"
79 #include "decode-ethernet.h"
80 #include "decode-chdlc.h"
81 #include "decode-gre.h"
82 #include "decode-geneve.h"
83 #include "decode-ppp.h"
84 #include "decode-pppoe.h"
85 #include "decode-sll.h"
86 #include "decode-ipv4.h"
87 #include "decode-ipv6.h"
88 #include "decode-icmpv4.h"
89 #include "decode-icmpv6.h"
90 #include "decode-tcp.h"
91 #include "decode-udp.h"
92 #include "decode-sctp.h"
93 #include "decode-raw.h"
94 #include "decode-null.h"
95 #include "decode-vlan.h"
96 #include "decode-vxlan.h"
97 #include "decode-mpls.h"
98 
99 #include "detect-reference.h"
100 
101 #include "app-layer-protos.h"
102 
103 /* forward declarations */
104 struct DetectionEngineThreadCtx_;
106 
107 struct PktPool_;
108 
109 /* declare these here as they are called from the
110  * PACKET_RECYCLE and PACKET_CLEANUP macro's. */
114 
115 /* Address */
116 typedef struct Address_ {
117  char family;
118  union {
119  uint32_t address_un_data32[4]; /* type-specific field */
120  uint16_t address_un_data16[8]; /* type-specific field */
121  uint8_t address_un_data8[16]; /* type-specific field */
122  struct in6_addr address_un_in6;
125 
126 #define addr_data32 address.address_un_data32
127 #define addr_data16 address.address_un_data16
128 #define addr_data8 address.address_un_data8
129 #define addr_in6addr address.address_un_in6
130 
131 #define COPY_ADDRESS(a, b) do { \
132  (b)->family = (a)->family; \
133  (b)->addr_data32[0] = (a)->addr_data32[0]; \
134  (b)->addr_data32[1] = (a)->addr_data32[1]; \
135  (b)->addr_data32[2] = (a)->addr_data32[2]; \
136  (b)->addr_data32[3] = (a)->addr_data32[3]; \
137  } while (0)
138 
139 /* Set the IPv4 addresses into the Addrs of the Packet.
140  * Make sure p->ip4h is initialized and validated.
141  *
142  * We set the rest of the struct to 0 so we can
143  * prevent using memset. */
144 #define SET_IPV4_SRC_ADDR(p, a) do { \
145  (a)->family = AF_INET; \
146  (a)->addr_data32[0] = (uint32_t)(p)->ip4h->s_ip_src.s_addr; \
147  (a)->addr_data32[1] = 0; \
148  (a)->addr_data32[2] = 0; \
149  (a)->addr_data32[3] = 0; \
150  } while (0)
151 
152 #define SET_IPV4_DST_ADDR(p, a) do { \
153  (a)->family = AF_INET; \
154  (a)->addr_data32[0] = (uint32_t)(p)->ip4h->s_ip_dst.s_addr; \
155  (a)->addr_data32[1] = 0; \
156  (a)->addr_data32[2] = 0; \
157  (a)->addr_data32[3] = 0; \
158  } while (0)
159 
160 /* clear the address structure by setting all fields to 0 */
161 #define CLEAR_ADDR(a) do { \
162  (a)->family = 0; \
163  (a)->addr_data32[0] = 0; \
164  (a)->addr_data32[1] = 0; \
165  (a)->addr_data32[2] = 0; \
166  (a)->addr_data32[3] = 0; \
167  } while (0)
168 
169 /* Set the IPv6 addresses into the Addrs of the Packet.
170  * Make sure p->ip6h is initialized and validated. */
171 #define SET_IPV6_SRC_ADDR(p, a) do { \
172  (a)->family = AF_INET6; \
173  (a)->addr_data32[0] = (p)->ip6h->s_ip6_src[0]; \
174  (a)->addr_data32[1] = (p)->ip6h->s_ip6_src[1]; \
175  (a)->addr_data32[2] = (p)->ip6h->s_ip6_src[2]; \
176  (a)->addr_data32[3] = (p)->ip6h->s_ip6_src[3]; \
177  } while (0)
178 
179 #define SET_IPV6_DST_ADDR(p, a) do { \
180  (a)->family = AF_INET6; \
181  (a)->addr_data32[0] = (p)->ip6h->s_ip6_dst[0]; \
182  (a)->addr_data32[1] = (p)->ip6h->s_ip6_dst[1]; \
183  (a)->addr_data32[2] = (p)->ip6h->s_ip6_dst[2]; \
184  (a)->addr_data32[3] = (p)->ip6h->s_ip6_dst[3]; \
185  } while (0)
186 
187 /* Set the TCP ports into the Ports of the Packet.
188  * Make sure p->tcph is initialized and validated. */
189 #define SET_TCP_SRC_PORT(pkt, prt) do { \
190  SET_PORT(TCP_GET_SRC_PORT((pkt)), *(prt)); \
191  } while (0)
192 
193 #define SET_TCP_DST_PORT(pkt, prt) do { \
194  SET_PORT(TCP_GET_DST_PORT((pkt)), *(prt)); \
195  } while (0)
196 
197 /* Set the UDP ports into the Ports of the Packet.
198  * Make sure p->udph is initialized and validated. */
199 #define SET_UDP_SRC_PORT(pkt, prt) do { \
200  SET_PORT(UDP_GET_SRC_PORT((pkt)), *(prt)); \
201  } while (0)
202 #define SET_UDP_DST_PORT(pkt, prt) do { \
203  SET_PORT(UDP_GET_DST_PORT((pkt)), *(prt)); \
204  } while (0)
205 
206 /* Set the SCTP ports into the Ports of the Packet.
207  * Make sure p->sctph is initialized and validated. */
208 #define SET_SCTP_SRC_PORT(pkt, prt) do { \
209  SET_PORT(SCTP_GET_SRC_PORT((pkt)), *(prt)); \
210  } while (0)
211 
212 #define SET_SCTP_DST_PORT(pkt, prt) do { \
213  SET_PORT(SCTP_GET_DST_PORT((pkt)), *(prt)); \
214  } while (0)
215 
216 
217 
218 #define GET_IPV4_SRC_ADDR_U32(p) ((p)->src.addr_data32[0])
219 #define GET_IPV4_DST_ADDR_U32(p) ((p)->dst.addr_data32[0])
220 #define GET_IPV4_SRC_ADDR_PTR(p) ((p)->src.addr_data32)
221 #define GET_IPV4_DST_ADDR_PTR(p) ((p)->dst.addr_data32)
222 
223 #define GET_IPV6_SRC_IN6ADDR(p) ((p)->src.addr_in6addr)
224 #define GET_IPV6_DST_IN6ADDR(p) ((p)->dst.addr_in6addr)
225 #define GET_IPV6_SRC_ADDR(p) ((p)->src.addr_data32)
226 #define GET_IPV6_DST_ADDR(p) ((p)->dst.addr_data32)
227 #define GET_TCP_SRC_PORT(p) ((p)->sp)
228 #define GET_TCP_DST_PORT(p) ((p)->dp)
229 
230 #define GET_PKT_LEN(p) ((p)->pktlen)
231 #define GET_PKT_DATA(p) ((((p)->ext_pkt) == NULL ) ? (uint8_t *)((p) + 1) : (p)->ext_pkt)
232 #define GET_PKT_DIRECT_DATA(p) (uint8_t *)((p) + 1)
233 #define GET_PKT_DIRECT_MAX_SIZE(p) (default_packet_size)
234 
235 #define SET_PKT_LEN(p, len) do { \
236  (p)->pktlen = (len); \
237  } while (0)
238 
239 
240 /* Port is just a uint16_t */
241 typedef uint16_t Port;
242 #define SET_PORT(v, p) ((p) = (v))
243 #define COPY_PORT(a,b) ((b) = (a))
244 
245 #define CMP_ADDR(a1, a2) \
246  (((a1)->addr_data32[3] == (a2)->addr_data32[3] && \
247  (a1)->addr_data32[2] == (a2)->addr_data32[2] && \
248  (a1)->addr_data32[1] == (a2)->addr_data32[1] && \
249  (a1)->addr_data32[0] == (a2)->addr_data32[0]))
250 #define CMP_PORT(p1, p2) \
251  ((p1) == (p2))
252 
253 /*Given a packet pkt offset to the start of the ip header in a packet
254  *We determine the ip version. */
255 #define IP_GET_RAW_VER(pkt) ((((pkt)[0] & 0xf0) >> 4))
256 
257 #define PKT_IS_IPV4(p) (((p)->ip4h != NULL))
258 #define PKT_IS_IPV6(p) (((p)->ip6h != NULL))
259 #define PKT_IS_TCP(p) (((p)->tcph != NULL))
260 #define PKT_IS_UDP(p) (((p)->udph != NULL))
261 #define PKT_IS_ICMPV4(p) (((p)->icmpv4h != NULL))
262 #define PKT_IS_ICMPV6(p) (((p)->icmpv6h != NULL))
263 #define PKT_IS_TOSERVER(p) (((p)->flowflags & FLOW_PKT_TOSERVER))
264 #define PKT_IS_TOCLIENT(p) (((p)->flowflags & FLOW_PKT_TOCLIENT))
265 
266 #define IPH_IS_VALID(p) (PKT_IS_IPV4((p)) || PKT_IS_IPV6((p)))
267 
268 /* Retrieve proto regardless of IP version */
269 #define IP_GET_IPPROTO(p) \
270  (p->proto ? p->proto : \
271  (PKT_IS_IPV4((p))? IPV4_GET_IPPROTO((p)) : (PKT_IS_IPV6((p))? IPV6_GET_L4PROTO((p)) : 0)))
272 
273 /* structure to store the sids/gids/etc the detection engine
274  * found in this packet */
275 typedef struct PacketAlert_ {
276  SigIntId num; /* Internal num, used for sorting */
277  uint8_t action; /* Internal num, used for sorting */
278  uint8_t flags;
279  const struct Signature_ *s;
280  uint64_t tx_id;
282 
283 /** After processing an alert by the thresholding module, if at
284  * last it gets triggered, we might want to stick the drop action to
285  * the flow on IPS mode */
286 #define PACKET_ALERT_FLAG_DROP_FLOW 0x01
287 /** alert was generated based on state */
288 #define PACKET_ALERT_FLAG_STATE_MATCH 0x02
289 /** alert was generated based on stream */
290 #define PACKET_ALERT_FLAG_STREAM_MATCH 0x04
291 /** alert is in a tx, tx_id set */
292 #define PACKET_ALERT_FLAG_TX 0x08
293 /** action was changed by rate_filter */
294 #define PACKET_ALERT_RATE_FILTER_MODIFIED 0x10
295 
296 #define PACKET_ALERT_MAX 15
297 
298 typedef struct PacketAlerts_ {
299  uint16_t cnt;
301  /* single pa used when we're dropping,
302  * so we can log it out in the drop log. */
305 
306 /** number of decoder events we support per packet. Power of 2 minus 1
307  * for memory layout */
308 #define PACKET_ENGINE_EVENT_MAX 15
309 
310 /** data structure to store decoder, defrag and stream events */
311 typedef struct PacketEngineEvents_ {
312  uint8_t cnt; /**< number of events */
313  uint8_t events[PACKET_ENGINE_EVENT_MAX]; /**< array of events */
315 
316 typedef struct PktVar_ {
317  uint32_t id;
318  struct PktVar_ *next; /* right now just implement this as a list,
319  * in the long run we have thing of something
320  * faster. */
321  uint16_t key_len;
322  uint16_t value_len;
323  uint8_t *key;
324  uint8_t *value;
326 
327 #ifdef PROFILING
328 
329 /** \brief Per TMM stats storage */
330 typedef struct PktProfilingTmmData_ {
331  uint64_t ticks_start;
332  uint64_t ticks_end;
333 #ifdef PROFILE_LOCKING
334  uint64_t mutex_lock_cnt;
335  uint64_t mutex_lock_wait_ticks;
336  uint64_t mutex_lock_contention;
337  uint64_t spin_lock_cnt;
338  uint64_t spin_lock_wait_ticks;
339  uint64_t spin_lock_contention;
340  uint64_t rww_lock_cnt;
341  uint64_t rww_lock_wait_ticks;
342  uint64_t rww_lock_contention;
343  uint64_t rwr_lock_cnt;
344  uint64_t rwr_lock_wait_ticks;
345  uint64_t rwr_lock_contention;
346 #endif
348 
349 typedef struct PktProfilingData_ {
350  uint64_t ticks_start;
351  uint64_t ticks_end;
353 
354 typedef struct PktProfilingDetectData_ {
355  uint64_t ticks_start;
356  uint64_t ticks_end;
357  uint64_t ticks_spent;
359 
360 typedef struct PktProfilingAppData_ {
361  uint64_t ticks_spent;
363 
364 typedef struct PktProfilingLoggerData_ {
365  uint64_t ticks_start;
366  uint64_t ticks_end;
367  uint64_t ticks_spent;
369 
371  uint64_t ticks_spent;
373 
376  uint32_t size; /**< array size */
378 
379 /** \brief Per pkt stats storage */
380 typedef struct PktProfiling_ {
381  uint64_t ticks_start;
382  uint64_t ticks_end;
383 
389  uint64_t proto_detect;
391 
392 #endif /* PROFILING */
393 
394 /* forward declaration since Packet struct definition requires this */
395 struct PacketQueue_;
396 
397 /* sizes of the members:
398  * src: 17 bytes
399  * dst: 17 bytes
400  * sp/type: 1 byte
401  * dp/code: 1 byte
402  * proto: 1 byte
403  * recurs: 1 byte
404  *
405  * sum of above: 38 bytes
406  *
407  * flow ptr: 4/8 bytes
408  * flags: 1 byte
409  * flowflags: 1 byte
410  *
411  * sum of above 44/48 bytes
412  */
413 typedef struct Packet_
414 {
415  /* Addresses, Ports and protocol
416  * these are on top so we can use
417  * the Packet as a hash key */
420  union {
422  // icmp type and code of this packet
423  struct {
424  uint8_t type;
425  uint8_t code;
427  };
428  union {
430  // icmp type and code of the expected counterpart (for flows)
431  struct {
432  uint8_t type;
433  uint8_t code;
435  };
436  uint8_t proto;
437  /* make sure we can't be attacked on when the tunneled packet
438  * has the exact same tuple as the lower levels */
440 
441  uint16_t vlan_id[2];
442  uint8_t vlan_idx;
443 
444  /* flow */
445  uint8_t flowflags;
446  /* coccinelle: Packet:flowflags:FLOW_PKT_ */
447 
448  /* Pkt Flags */
449  uint32_t flags;
450 
451  struct Flow_ *flow;
452 
453  /* raw hash value for looking up the flow, will need to modulated to the
454  * hash size still */
455  uint32_t flow_hash;
456 
457  struct timeval ts;
458 
459  union {
460  /* nfq stuff */
461 #ifdef HAVE_NFLOG
462  NFLOGPacketVars nflog_v;
463 #endif /* HAVE_NFLOG */
464 #ifdef NFQ
466 #endif /* NFQ */
467 #ifdef IPFW
469 #endif /* IPFW */
470 #ifdef AF_PACKET
471  AFPPacketVars afp_v;
472 #endif
473 #ifdef HAVE_NETMAP
474  NetmapPacketVars netmap_v;
475 #endif
476 #ifdef HAVE_PFRING
477 #ifdef HAVE_PF_RING_FLOW_OFFLOAD
478  PfringPacketVars pfring_v;
479 #endif
480 #endif
481 #ifdef WINDIVERT
482  WinDivertPacketVars windivert_v;
483 #endif /* WINDIVERT */
484 
485  /* A chunk of memory that a plugin can use for its packet vars. */
487 
488  /** libpcap vars: shared by Pcap Live mode and Pcap File mode */
490  };
491 
492  /** The release function for packet structure and data */
493  void (*ReleasePacket)(struct Packet_ *);
494  /** The function triggering bypass the flow in the capture method.
495  * Return 1 for success and 0 on error */
496  int (*BypassPacketsFlow)(struct Packet_ *);
497 
498  /* pkt vars */
500 
501  /* header pointers */
502  EthernetHdr *ethh;
503 
504  /* Checksum for IP packets. */
506  /* Check sum for TCP, UDP or ICMP packets */
508 
510 
512 
513  /* IPv4 and IPv6 are mutually exclusive */
514  union {
516  struct {
519  };
520  };
521  /* Can only be one of TCP, UDP, ICMP at any given time */
522  union {
527 #define tcpvars l4vars.tcpvars
528 #define icmpv4vars l4vars.icmpv4vars
529 #define icmpv6vars l4vars.icmpv6vars
530 
531  TCPHdr *tcph;
532 
533  UDPHdr *udph;
534 
535  SCTPHdr *sctph;
536 
537  ICMPV4Hdr *icmpv4h;
538 
540 
541  PPPHdr *ppph;
543  PPPOEDiscoveryHdr *pppoedh;
544 
545  GREHdr *greh;
546 
547  /* ptr to the payload of the packet
548  * with it's length. */
549  uint8_t *payload;
550  uint16_t payload_len;
551 
552  /* IPS action to take */
553  uint8_t action;
554 
555  uint8_t pkt_src;
556 
557  /* storage: set to pointer to heap and extended via allocation if necessary */
558  uint32_t pktlen;
559  uint8_t *ext_pkt;
560 
561  /* Incoming interface */
563 
565 
566  struct Host_ *host_src;
567  struct Host_ *host_dst;
568 
569  /** packet number in the pcap file, matches wireshark */
570  uint64_t pcap_cnt;
571 
572 
573  /* engine events */
575 
577 
578  /* double linked list ptrs */
579  struct Packet_ *next;
580  struct Packet_ *prev;
581 
582  /** data linktype in host order */
583  int datalink;
584 
585  /* tunnel/encapsulation handling */
586  struct Packet_ *root; /* in case of tunnel this is a ptr
587  * to the 'real' packet, the one we
588  * need to set the verdict on --
589  * It should always point to the lowest
590  * packet in a encapsulated packet */
591 
592  /** mutex to protect access to:
593  * - tunnel_rtv_cnt
594  * - tunnel_tpr_cnt
595  */
597  /* ready to set verdict counter, only set in root */
598  uint16_t tunnel_rtv_cnt;
599  /* tunnel packet ref count */
600  uint16_t tunnel_tpr_cnt;
601 
602  /** tenant id for this packet, if any. If 0 then no tenant was assigned. */
603  uint32_t tenant_id;
604 
605  /* The Packet pool from which this packet was allocated. Used when returning
606  * the packet to its owner's stack. If NULL, then allocated with malloc.
607  */
608  struct PktPool_ *pool;
609 
610 #ifdef PROFILING
612 #endif
613 #ifdef HAVE_NAPATECH
615 #endif
617 
618 /** highest mtu of the interfaces we monitor */
619 extern int g_default_mtu;
620 #define DEFAULT_MTU 1500
621 #define MINIMUM_MTU 68 /**< ipv4 minimum: rfc791 */
622 
623 #define DEFAULT_PACKET_SIZE (DEFAULT_MTU + ETHERNET_HEADER_LEN)
624 /* storage: maximum ip packet size + link header */
625 #define MAX_PAYLOAD_SIZE (IPV6_HEADER_LEN + 65536 + 28)
626 extern uint32_t default_packet_size;
627 #define SIZE_OF_PACKET (default_packet_size + sizeof(Packet))
628 
629 /** \brief Structure to hold thread specific data for all decode modules */
630 typedef struct DecodeThreadVars_
631 {
632  /** Specific context for udp protocol detection (here atm) */
634 
635  /** stats/counters */
636  uint16_t counter_pkts;
637  uint16_t counter_bytes;
642 
643  uint16_t counter_invalid;
644 
645  uint16_t counter_eth;
646  uint16_t counter_chdlc;
647  uint16_t counter_ipv4;
648  uint16_t counter_ipv6;
649  uint16_t counter_tcp;
650  uint16_t counter_udp;
651  uint16_t counter_icmpv4;
652  uint16_t counter_icmpv6;
653 
654  uint16_t counter_sll;
655  uint16_t counter_raw;
656  uint16_t counter_null;
657  uint16_t counter_sctp;
658  uint16_t counter_ppp;
659  uint16_t counter_geneve;
660  uint16_t counter_gre;
661  uint16_t counter_vlan;
663  uint16_t counter_vxlan;
665  uint16_t counter_pppoe;
666  uint16_t counter_teredo;
667  uint16_t counter_mpls;
670  uint16_t counter_erspan;
671 
672  /** frag stats - defrag runs in the context of the decoder. */
680 
682 
693 
698 
700 
701  /* thread data for flow logging api: only used at forced
702  * flow recycle during lookups */
704 
706 
707 typedef struct CaptureStats_ {
708 
713 
715 
716 void CaptureStatsUpdate(ThreadVars *tv, CaptureStats *s, const Packet *p);
718 
719 #define PACKET_CLEAR_L4VARS(p) do { \
720  memset(&(p)->l4vars, 0x00, sizeof((p)->l4vars)); \
721  } while (0)
722 
723 /**
724  * \brief reset these to -1(indicates that the packet is fresh from the queue)
725  */
726 #define PACKET_RESET_CHECKSUMS(p) do { \
727  (p)->level3_comp_csum = -1; \
728  (p)->level4_comp_csum = -1; \
729  } while (0)
730 
731 /* if p uses extended data, free them */
732 #define PACKET_FREE_EXTDATA(p) do { \
733  if ((p)->ext_pkt) { \
734  if (!((p)->flags & PKT_ZERO_COPY)) { \
735  SCFree((p)->ext_pkt); \
736  } \
737  (p)->ext_pkt = NULL; \
738  } \
739  } while(0)
740 
741 /**
742  * \brief Initialize a packet structure for use.
743  */
744 #define PACKET_INITIALIZE(p) { \
745  SCMutexInit(&(p)->tunnel_mutex, NULL); \
746  PACKET_RESET_CHECKSUMS((p)); \
747  (p)->livedev = NULL; \
748 }
749 
750 #define PACKET_RELEASE_REFS(p) do { \
751  FlowDeReference(&((p)->flow)); \
752  HostDeReference(&((p)->host_src)); \
753  HostDeReference(&((p)->host_dst)); \
754  } while (0)
755 
756 /**
757  * \brief Recycle a packet structure for reuse.
758  */
759 #define PACKET_REINIT(p) do { \
760  CLEAR_ADDR(&(p)->src); \
761  CLEAR_ADDR(&(p)->dst); \
762  (p)->sp = 0; \
763  (p)->dp = 0; \
764  (p)->proto = 0; \
765  (p)->recursion_level = 0; \
766  PACKET_FREE_EXTDATA((p)); \
767  (p)->flags = (p)->flags & PKT_ALLOC; \
768  (p)->flowflags = 0; \
769  (p)->pkt_src = 0; \
770  (p)->vlan_id[0] = 0; \
771  (p)->vlan_id[1] = 0; \
772  (p)->vlan_idx = 0; \
773  (p)->ts.tv_sec = 0; \
774  (p)->ts.tv_usec = 0; \
775  (p)->datalink = 0; \
776  (p)->action = 0; \
777  if ((p)->pktvar != NULL) { \
778  PktVarFree((p)->pktvar); \
779  (p)->pktvar = NULL; \
780  } \
781  (p)->ethh = NULL; \
782  if ((p)->ip4h != NULL) { \
783  CLEAR_IPV4_PACKET((p)); \
784  } \
785  if ((p)->ip6h != NULL) { \
786  CLEAR_IPV6_PACKET((p)); \
787  } \
788  if ((p)->tcph != NULL) { \
789  CLEAR_TCP_PACKET((p)); \
790  } \
791  if ((p)->udph != NULL) { \
792  CLEAR_UDP_PACKET((p)); \
793  } \
794  if ((p)->sctph != NULL) { \
795  CLEAR_SCTP_PACKET((p)); \
796  } \
797  if ((p)->icmpv4h != NULL) { \
798  CLEAR_ICMPV4_PACKET((p)); \
799  } \
800  if ((p)->icmpv6h != NULL) { \
801  CLEAR_ICMPV6_PACKET((p)); \
802  } \
803  (p)->ppph = NULL; \
804  (p)->pppoesh = NULL; \
805  (p)->pppoedh = NULL; \
806  (p)->greh = NULL; \
807  (p)->payload = NULL; \
808  (p)->payload_len = 0; \
809  (p)->BypassPacketsFlow = NULL; \
810  (p)->pktlen = 0; \
811  (p)->alerts.cnt = 0; \
812  (p)->alerts.drop.action = 0; \
813  (p)->pcap_cnt = 0; \
814  (p)->tunnel_rtv_cnt = 0; \
815  (p)->tunnel_tpr_cnt = 0; \
816  (p)->events.cnt = 0; \
817  AppLayerDecoderEventsResetEvents((p)->app_layer_events); \
818  (p)->next = NULL; \
819  (p)->prev = NULL; \
820  (p)->root = NULL; \
821  (p)->livedev = NULL; \
822  PACKET_RESET_CHECKSUMS((p)); \
823  PACKET_PROFILING_RESET((p)); \
824  p->tenant_id = 0; \
825  } while (0)
826 
827 #define PACKET_RECYCLE(p) do { \
828  PACKET_RELEASE_REFS((p)); \
829  PACKET_REINIT((p)); \
830  } while (0)
831 
832 /**
833  * \brief Cleanup a packet so that we can free it. No memset needed..
834  */
835 #define PACKET_DESTRUCTOR(p) do { \
836  if ((p)->pktvar != NULL) { \
837  PktVarFree((p)->pktvar); \
838  } \
839  PACKET_FREE_EXTDATA((p)); \
840  SCMutexDestroy(&(p)->tunnel_mutex); \
841  AppLayerDecoderEventsFreeEvents(&(p)->app_layer_events); \
842  PACKET_PROFILING_RESET((p)); \
843  } while (0)
844 
845 
846 /* macro's for setting the action
847  * handle the case of a root packet
848  * for tunnels */
849 
850 #define PACKET_SET_ACTION(p, a) do { \
851  ((p)->root ? \
852  ((p)->root->action = a) : \
853  ((p)->action = a)); \
854 } while (0)
855 
856 #define PACKET_ALERT(p) PACKET_SET_ACTION(p, ACTION_ALERT)
857 
858 #define PACKET_ACCEPT(p) PACKET_SET_ACTION(p, ACTION_ACCEPT)
859 
860 #define PACKET_DROP(p) PACKET_SET_ACTION(p, ACTION_DROP)
861 
862 #define PACKET_REJECT(p) PACKET_SET_ACTION(p, (ACTION_REJECT|ACTION_DROP))
863 
864 #define PACKET_REJECT_DST(p) PACKET_SET_ACTION(p, (ACTION_REJECT_DST|ACTION_DROP))
865 
866 #define PACKET_REJECT_BOTH(p) PACKET_SET_ACTION(p, (ACTION_REJECT_BOTH|ACTION_DROP))
867 
868 #define PACKET_PASS(p) PACKET_SET_ACTION(p, ACTION_PASS)
869 
870 #define PACKET_TEST_ACTION(p, a) \
871  ((p)->root ? \
872  ((p)->root->action & a) : \
873  ((p)->action & a))
874 
875 #define PACKET_UPDATE_ACTION(p, a) do { \
876  ((p)->root ? \
877  ((p)->root->action |= a) : \
878  ((p)->action |= a)); \
879 } while (0)
880 
881 #define TUNNEL_INCR_PKT_RTV_NOLOCK(p) do { \
882  ((p)->root ? (p)->root->tunnel_rtv_cnt++ : (p)->tunnel_rtv_cnt++); \
883  } while (0)
884 
885 #define TUNNEL_INCR_PKT_TPR(p) do { \
886  SCMutexLock((p)->root ? &(p)->root->tunnel_mutex : &(p)->tunnel_mutex); \
887  ((p)->root ? (p)->root->tunnel_tpr_cnt++ : (p)->tunnel_tpr_cnt++); \
888  SCMutexUnlock((p)->root ? &(p)->root->tunnel_mutex : &(p)->tunnel_mutex); \
889  } while (0)
890 
891 #define TUNNEL_PKT_RTV(p) ((p)->root ? (p)->root->tunnel_rtv_cnt : (p)->tunnel_rtv_cnt)
892 #define TUNNEL_PKT_TPR(p) ((p)->root ? (p)->root->tunnel_tpr_cnt : (p)->tunnel_tpr_cnt)
893 
894 #define IS_TUNNEL_PKT(p) (((p)->flags & PKT_TUNNEL))
895 #define SET_TUNNEL_PKT(p) ((p)->flags |= PKT_TUNNEL)
896 #define UNSET_TUNNEL_PKT(p) ((p)->flags &= ~PKT_TUNNEL)
897 #define IS_TUNNEL_ROOT_PKT(p) (IS_TUNNEL_PKT(p) && (p)->root == NULL)
898 
899 #define IS_TUNNEL_PKT_VERDICTED(p) (((p)->flags & PKT_TUNNEL_VERDICTED))
900 #define SET_TUNNEL_PKT_VERDICTED(p) ((p)->flags |= PKT_TUNNEL_VERDICTED)
901 
909  DECODE_TUNNEL_IPV6_TEREDO, /**< separate protocol for stricter error handling */
912 };
913 
915  const uint8_t *pkt, uint32_t len, enum DecodeTunnelProto proto);
916 Packet *PacketDefragPktSetup(Packet *parent, const uint8_t *pkt, uint32_t len, uint8_t proto);
917 void PacketDefragPktSetupParent(Packet *parent);
924 void PacketFree(Packet *p);
925 void PacketFreeOrRelease(Packet *p);
926 int PacketCallocExtPkt(Packet *p, int datalen);
927 int PacketCopyData(Packet *p, const uint8_t *pktdata, uint32_t pktlen);
928 int PacketSetData(Packet *p, const uint8_t *pktdata, uint32_t pktlen);
929 int PacketCopyDataOffset(Packet *p, uint32_t offset, const uint8_t *data, uint32_t datalen);
930 const char *PktSrcToString(enum PktSrcEnum pkt_src);
932 void PacketSwap(Packet *p);
933 
937  const DecodeThreadVars *dtv, const Packet *p);
938 
939 /* decoder functions */
940 int DecodeEthernet(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
941 int DecodeSll(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
942 int DecodePPP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
943 int DecodePPPOESession(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
944 int DecodePPPOEDiscovery(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
945 int DecodeTunnel(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t, enum DecodeTunnelProto) WARN_UNUSED;
946 int DecodeNull(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
947 int DecodeRaw(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
948 int DecodeIPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
949 int DecodeIPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
950 int DecodeICMPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
951 int DecodeICMPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
952 int DecodeTCP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
953 int DecodeUDP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
954 int DecodeSCTP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
955 int DecodeGRE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
956 int DecodeVLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
957 int DecodeIEEE8021ah(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
958 int DecodeGeneve(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
959 int DecodeVXLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
960 int DecodeMPLS(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
961 int DecodeERSPAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
962 int DecodeERSPANTypeI(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
963 int DecodeCHDLC(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
964 int DecodeTEMPLATE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
965 
966 #ifdef UNITTESTS
967 void DecodeIPV6FragHeader(Packet *p, const uint8_t *pkt,
968  uint16_t hdrextlen, uint16_t plen,
969  uint16_t prev_hdrextlen);
970 #endif
971 
972 void AddressDebugPrint(Address *);
973 
975  const uint8_t *pkt, uint32_t len);
976 void DecodeGlobalConfig(void);
977 void DecodeUnregisterCounters(void);
978 
979 /** \brief Set the No payload inspection Flag for the packet.
980  *
981  * \param p Packet to set the flag in
982  */
983 #define DecodeSetNoPayloadInspectionFlag(p) do { \
984  (p)->flags |= PKT_NOPAYLOAD_INSPECTION; \
985  } while (0)
986 
987 #define DecodeUnsetNoPayloadInspectionFlag(p) do { \
988  (p)->flags &= ~PKT_NOPAYLOAD_INSPECTION; \
989  } while (0)
990 
991 /** \brief Set the No packet inspection Flag for the packet.
992  *
993  * \param p Packet to set the flag in
994  */
995 #define DecodeSetNoPacketInspectionFlag(p) do { \
996  (p)->flags |= PKT_NOPACKET_INSPECTION; \
997  } while (0)
998 #define DecodeUnsetNoPacketInspectionFlag(p) do { \
999  (p)->flags &= ~PKT_NOPACKET_INSPECTION; \
1000  } while (0)
1001 
1002 
1003 #define ENGINE_SET_EVENT(p, e) do { \
1004  SCLogDebug("p %p event %d", (p), e); \
1005  if ((p)->events.cnt < PACKET_ENGINE_EVENT_MAX) { \
1006  (p)->events.events[(p)->events.cnt] = e; \
1007  (p)->events.cnt++; \
1008  } \
1009 } while(0)
1010 
1011 #define ENGINE_SET_INVALID_EVENT(p, e) do { \
1012  p->flags |= PKT_IS_INVALID; \
1013  ENGINE_SET_EVENT(p, e); \
1014 } while(0)
1015 
1016 
1017 
1018 #define ENGINE_ISSET_EVENT(p, e) ({ \
1019  int r = 0; \
1020  uint8_t u; \
1021  for (u = 0; u < (p)->events.cnt; u++) { \
1022  if ((p)->events.events[u] == (e)) { \
1023  r = 1; \
1024  break; \
1025  } \
1026  } \
1027  r; \
1028 })
1029 
1030 #ifndef IPPROTO_IPIP
1031 #define IPPROTO_IPIP 4
1032 #endif
1033 
1034 /* older libcs don't contain a def for IPPROTO_DCCP
1035  * inside of <netinet/in.h>
1036  * if it isn't defined let's define it here.
1037  */
1038 #ifndef IPPROTO_DCCP
1039 #define IPPROTO_DCCP 33
1040 #endif
1041 
1042 /* older libcs don't contain a def for IPPROTO_SCTP
1043  * inside of <netinet/in.h>
1044  * if it isn't defined let's define it here.
1045  */
1046 #ifndef IPPROTO_SCTP
1047 #define IPPROTO_SCTP 132
1048 #endif
1049 
1050 #ifndef IPPROTO_MH
1051 #define IPPROTO_MH 135
1052 #endif
1053 
1054 /* Host Identity Protocol (rfc 5201) */
1055 #ifndef IPPROTO_HIP
1056 #define IPPROTO_HIP 139
1057 #endif
1058 
1059 #ifndef IPPROTO_SHIM6
1060 #define IPPROTO_SHIM6 140
1061 #endif
1062 
1063 /* pcap provides this, but we don't want to depend on libpcap */
1064 #ifndef DLT_EN10MB
1065 #define DLT_EN10MB 1
1066 #endif
1067 
1068 #ifndef DLT_C_HDLC
1069 #define DLT_C_HDLC 104
1070 #endif
1071 
1072 /* taken from pcap's bpf.h */
1073 #ifndef DLT_RAW
1074 #ifdef __OpenBSD__
1075 #define DLT_RAW 14 /* raw IP */
1076 #else
1077 #define DLT_RAW 12 /* raw IP */
1078 #endif
1079 #endif
1080 
1081 #ifndef DLT_NULL
1082 #define DLT_NULL 0
1083 #endif
1084 
1085 /** libpcap shows us the way to linktype codes
1086  * \todo we need more & maybe put them in a separate file? */
1087 #define LINKTYPE_NULL DLT_NULL
1088 #define LINKTYPE_ETHERNET DLT_EN10MB
1089 #define LINKTYPE_LINUX_SLL 113
1090 #define LINKTYPE_PPP 9
1091 #define LINKTYPE_RAW DLT_RAW
1092 /* http://www.tcpdump.org/linktypes.html defines DLT_RAW as 101, yet others don't.
1093  * Libpcap on at least OpenBSD returns 101 as datalink type for RAW pcaps though. */
1094 #define LINKTYPE_RAW2 101
1095 #define LINKTYPE_IPV4 228
1096 #define LINKTYPE_GRE_OVER_IP 778
1097 #define LINKTYPE_CISCO_HDLC DLT_C_HDLC
1098 #define PPP_OVER_GRE 11
1099 #define VLAN_OVER_GRE 13
1101 /*Packet Flags*/
1102 #define PKT_NOPACKET_INSPECTION (1) /**< Flag to indicate that packet header or contents should not be inspected*/
1103 #define PKT_NOPAYLOAD_INSPECTION (1<<2) /**< Flag to indicate that packet contents should not be inspected*/
1104 #define PKT_ALLOC (1<<3) /**< Packet was alloc'd this run, needs to be freed */
1105 #define PKT_HAS_TAG (1<<4) /**< Packet has matched a tag */
1106 #define PKT_STREAM_ADD (1<<5) /**< Packet payload was added to reassembled stream */
1107 #define PKT_STREAM_EST (1<<6) /**< Packet is part of established stream */
1108 #define PKT_STREAM_EOF (1<<7) /**< Stream is in eof state */
1109 #define PKT_HAS_FLOW (1<<8)
1110 #define PKT_PSEUDO_STREAM_END (1<<9) /**< Pseudo packet to end the stream */
1111 #define PKT_STREAM_MODIFIED (1<<10) /**< Packet is modified by the stream engine, we need to recalc the csum and reinject/replace */
1112 #define PKT_MARK_MODIFIED (1<<11) /**< Packet mark is modified */
1113 #define PKT_STREAM_NOPCAPLOG (1<<12) /**< Exclude packet from pcap logging as it's part of a stream that has reassembly depth reached. */
1115 #define PKT_TUNNEL (1<<13)
1116 #define PKT_TUNNEL_VERDICTED (1<<14)
1118 #define PKT_IGNORE_CHECKSUM (1<<15) /**< Packet checksum is not computed (TX packet for example) */
1119 #define PKT_ZERO_COPY (1<<16) /**< Packet comes from zero copy (ext_pkt must not be freed) */
1121 #define PKT_HOST_SRC_LOOKED_UP (1<<17)
1122 #define PKT_HOST_DST_LOOKED_UP (1<<18)
1124 #define PKT_IS_FRAGMENT (1<<19) /**< Packet is a fragment */
1125 #define PKT_IS_INVALID (1<<20)
1126 #define PKT_PROFILE (1<<21)
1128 /** indication by decoder that it feels the packet should be handled by
1129  * flow engine: Packet::flow_hash will be set */
1130 #define PKT_WANTS_FLOW (1<<22)
1132 /** protocol detection done */
1133 #define PKT_PROTO_DETECT_TS_DONE (1<<23)
1134 #define PKT_PROTO_DETECT_TC_DONE (1<<24)
1136 #define PKT_REBUILT_FRAGMENT (1<<25) /**< Packet is rebuilt from
1137  * fragments. */
1138 #define PKT_DETECT_HAS_STREAMDATA (1<<26) /**< Set by Detect() if raw stream data is available. */
1140 #define PKT_PSEUDO_DETECTLOG_FLUSH (1<<27) /**< Detect/log flush for protocol upgrade */
1142 /** Packet is part of stream in known bad condition (loss, wrong thread),
1143  * so flag it for not setting stream events */
1144 #define PKT_STREAM_NO_EVENTS (1<<28)
1146 /** \brief return 1 if the packet is a pseudo packet */
1147 #define PKT_IS_PSEUDOPKT(p) \
1148  ((p)->flags & (PKT_PSEUDO_STREAM_END|PKT_PSEUDO_DETECTLOG_FLUSH))
1149 
1150 #define PKT_SET_SRC(p, src_val) ((p)->pkt_src = src_val)
1152 /** \brief return true if *this* packet needs to trigger a verdict.
1153  *
1154  * If we have the root packet, and we have none outstanding,
1155  * we can verdict now.
1156  *
1157  * If we have a upper layer packet, it's the only one and root
1158  * is already processed, we can verdict now.
1159  *
1160  * Otherwise, a future packet will issue the verdict.
1161  */
1162 static inline bool VerdictTunnelPacket(Packet *p)
1163 {
1164  bool verdict = true;
1165  SCMutex *m = p->root ? &p->root->tunnel_mutex : &p->tunnel_mutex;
1166  SCMutexLock(m);
1167  const uint16_t outstanding = TUNNEL_PKT_TPR(p) - TUNNEL_PKT_RTV(p);
1168  SCLogDebug("tunnel: outstanding %u", outstanding);
1169 
1170  /* if there are packets outstanding, we won't verdict this one */
1171  if (IS_TUNNEL_ROOT_PKT(p) && !IS_TUNNEL_PKT_VERDICTED(p) && !outstanding) {
1172  // verdict
1173  SCLogDebug("root %p: verdict", p);
1174  } else if (!IS_TUNNEL_ROOT_PKT(p) && outstanding == 1 && p->root && IS_TUNNEL_PKT_VERDICTED(p->root)) {
1175  // verdict
1176  SCLogDebug("tunnel %p: verdict", p);
1177  } else {
1178  verdict = false;
1179  }
1180  SCMutexUnlock(m);
1181  return verdict;
1182 }
1183 
1184 static inline void DecodeLinkLayer(ThreadVars *tv, DecodeThreadVars *dtv,
1185  const int datalink, Packet *p, const uint8_t *data, const uint32_t len)
1186 {
1187  /* call the decoder */
1188  switch (datalink) {
1189  case LINKTYPE_ETHERNET:
1190  DecodeEthernet(tv, dtv, p, data, len);
1191  break;
1192  case LINKTYPE_LINUX_SLL:
1193  DecodeSll(tv, dtv, p, data, len);
1194  break;
1195  case LINKTYPE_PPP:
1196  DecodePPP(tv, dtv, p, data, len);
1197  break;
1198  case LINKTYPE_RAW:
1199  case LINKTYPE_GRE_OVER_IP:
1200  DecodeRaw(tv, dtv, p, data, len);
1201  break;
1202  case LINKTYPE_NULL:
1203  DecodeNull(tv, dtv, p, data, len);
1204  break;
1205  case LINKTYPE_CISCO_HDLC:
1206  DecodeCHDLC(tv, dtv, p, data, len);
1207  break;
1208  default:
1209  SCLogError(SC_ERR_DATALINK_UNIMPLEMENTED, "datalink type "
1210  "%"PRId32" not yet supported", datalink);
1211  break;
1212  }
1213 }
1214 
1215 /** \brief decode network layer
1216  * \retval bool true if successful, false if unknown */
1217 static inline bool DecodeNetworkLayer(ThreadVars *tv, DecodeThreadVars *dtv,
1218  const uint16_t proto, Packet *p, const uint8_t *data, const uint32_t len)
1219 {
1220  switch (proto) {
1221  case ETHERNET_TYPE_IP: {
1222  uint16_t ip_len = (len < USHRT_MAX) ? (uint16_t)len : (uint16_t)USHRT_MAX;
1223  DecodeIPV4(tv, dtv, p, data, ip_len);
1224  break;
1225  }
1226  case ETHERNET_TYPE_IPV6: {
1227  uint16_t ip_len = (len < USHRT_MAX) ? (uint16_t)len : (uint16_t)USHRT_MAX;
1228  DecodeIPV6(tv, dtv, p, data, ip_len);
1229  break;
1230  }
1232  DecodePPPOESession(tv, dtv, p, data, len);
1233  break;
1235  DecodePPPOEDiscovery(tv, dtv, p, data, len);
1236  break;
1237  case ETHERNET_TYPE_VLAN:
1238  case ETHERNET_TYPE_8021AD:
1240  if (p->vlan_idx >= 2) {
1242  } else {
1243  DecodeVLAN(tv, dtv, p, data, len);
1244  }
1245  break;
1246  case ETHERNET_TYPE_8021AH:
1247  DecodeIEEE8021ah(tv, dtv, p, data, len);
1248  break;
1249  case ETHERNET_TYPE_ARP:
1250  break;
1253  DecodeMPLS(tv, dtv, p, data, len);
1254  break;
1255  case ETHERNET_TYPE_DCE:
1258  } else {
1259  DecodeEthernet(tv, dtv, p, data, len);
1260  }
1261  break;
1262  default:
1263  SCLogDebug("unknown ether type: %" PRIx16 "", proto);
1264  return false;
1265  }
1266  return true;
1267 }
1268 
1269 #endif /* __DECODE_H__ */
CaptureStats
struct CaptureStats_ CaptureStats
suricata-plugin.h
ENGINE_SET_EVENT
#define ENGINE_SET_EVENT(p, e)
Definition: decode.h:1003
DecodeThreadVars_::counter_flow_get_used_eval_busy
uint16_t counter_flow_get_used_eval_busy
Definition: decode.h:691
Packet_::greh
GREHdr * greh
Definition: decode.h:545
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decode-raw.h
decode-tcp.h
DecodeThreadVars_::counter_defrag_ipv4_reassembled
uint16_t counter_defrag_ipv4_reassembled
Definition: decode.h:674
Packet_::proto
uint8_t proto
Definition: decode.h:436
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thread_local uint64_t spin_lock_cnt
DecodeIPV6
int DecodeIPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-ipv6.c:580
DecodeERSPAN
int DecodeERSPAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
ERSPAN Type II.
Definition: decode-erspan.c:75
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int DecodeGeneve(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-geneve.c:184
source-nflog.h
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uint16_t counter_flow_udp
Definition: decode.h:684
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uint8_t len
Definition: app-layer-dnp3.h:2
DecodeThreadVars_::counter_bytes
uint16_t counter_bytes
Definition: decode.h:637
DECODE_TUNNEL_IPV6
@ DECODE_TUNNEL_IPV6
Definition: decode.h:908
source-pcap.h
CaptureStats_::counter_ips_blocked
uint16_t counter_ips_blocked
Definition: decode.h:710
PktProfilingData_::ticks_end
uint64_t ticks_end
Definition: decode.h:351
decode-erspan.h
decode-vxlan.h
PacketAlert_::s
const struct Signature_ * s
Definition: decode.h:279
DecodeThreadVars_::counter_eth
uint16_t counter_eth
Definition: decode.h:645
IPV4Vars_
Definition: decode-ipv4.h:173
DCE_PKT_TOO_SMALL
@ DCE_PKT_TOO_SMALL
Definition: decode-events.h:198
offset
uint64_t offset
Definition: util-streaming-buffer.h:0
Packet_::sctph
SCTPHdr * sctph
Definition: decode.h:535
NapatechPacketVars_
Definition: util-napatech.h:30
Packet_::code
uint8_t code
Definition: decode.h:425
PacketFreeOrRelease
void PacketFreeOrRelease(Packet *p)
Return a packet to where it was allocated.
Definition: decode.c:165
PLUGIN_VAR_SIZE
#define PLUGIN_VAR_SIZE
Definition: suricata-plugin.h:32
DecodeThreadVars_::counter_flow_icmp4
uint16_t counter_flow_icmp4
Definition: decode.h:685
DecodeThreadVars_::counter_vxlan
uint16_t counter_vxlan
Definition: decode.h:663
DecodeThreadVars_::counter_max_pkt_size
uint16_t counter_max_pkt_size
Definition: decode.h:639
PacketCopyData
int PacketCopyData(Packet *p, const uint8_t *pktdata, uint32_t pktlen)
Copy data to Packet payload and set packet length.
Definition: decode.c:262
decode-pppoe.h
Packet_::vlan_id
uint16_t vlan_id[2]
Definition: decode.h:441
PacketBypassCallback
void PacketBypassCallback(Packet *p)
Definition: decode.c:408
DecodeSCTP
int DecodeSCTP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-sctp.c:62
ICMPV4Vars_
Definition: decode-icmpv4.h:185
DecodeThreadVars_::counter_avg_pkt_size
uint16_t counter_avg_pkt_size
Definition: decode.h:638
PktProfiling_
Per pkt stats storage.
Definition: decode.h:380
Address_::address_un_data16
uint16_t address_un_data16[8]
Definition: decode.h:120
PktProfilingPrefilterData_::engines
PktProfilingPrefilterEngine * engines
Definition: decode.h:375
DecodePPP
int DecodePPP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-ppp.c:43
Address_::address_un_in6
struct in6_addr address_un_in6
Definition: decode.h:122
unlikely
#define unlikely(expr)
Definition: util-optimize.h:35
PktProfilingTmmData_
Per TMM stats storage.
Definition: decode.h:330
IPV6ExtHdrs_
Definition: decode-ipv6.h:215
PktPool_
Definition: tmqh-packetpool.h:40
Packet_::host_src
struct Host_ * host_src
Definition: decode.h:566
PPPOESessionHdr_
Definition: decode-pppoe.h:38
PacketEngineEvents_::events
uint8_t events[PACKET_ENGINE_EVENT_MAX]
Definition: decode.h:313
CaptureStats_
Definition: decode.h:707
DECODE_TUNNEL_IPV6_TEREDO
@ DECODE_TUNNEL_IPV6_TEREDO
Definition: decode.h:909
SCLogDebug
#define SCLogDebug(...)
Definition: util-debug.h:298
DecodeEthernet
int DecodeEthernet(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-ethernet.c:41
rwr_lock_cnt
thread_local uint64_t rwr_lock_cnt
Packet_::pcap_cnt
uint64_t pcap_cnt
Definition: decode.h:570
PktProfiling_::ticks_end
uint64_t ticks_end
Definition: decode.h:382
TCPVars_
Definition: decode-tcp.h:153
AddressDebugPrint
void AddressDebugPrint(Address *)
Debug print function for printing addresses.
Definition: decode.c:622
PKT_SRC_DECODER_IPV4
@ PKT_SRC_DECODER_IPV4
Definition: decode.h:53
DecodeThreadVars_::counter_flow_spare_sync_avg
uint16_t counter_flow_spare_sync_avg
Definition: decode.h:697
PacketDefragPktSetup
Packet * PacketDefragPktSetup(Packet *parent, const uint8_t *pkt, uint32_t len, uint8_t proto)
Setup a pseudo packet (reassembled frags)
Definition: decode.c:352
PacketAlerts_::alerts
PacketAlert alerts[PACKET_ALERT_MAX]
Definition: decode.h:300
PacketQueue_
simple fifo queue for packets with mutex and cond Calling the mutex or triggering the cond is respons...
Definition: packet-queue.h:47
Packet_::payload
uint8_t * payload
Definition: decode.h:549
PacketAlerts_::cnt
uint16_t cnt
Definition: decode.h:299
ETHERNET_TYPE_IPV6
#define ETHERNET_TYPE_IPV6
Definition: decode-ethernet.h:39
PKT_SRC_CAPTURE_TIMEOUT
@ PKT_SRC_CAPTURE_TIMEOUT
Definition: decode.h:61
DecodeUDP
int DecodeUDP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-udp.c:75
action-globals.h
Packet_::flags
uint32_t flags
Definition: decode.h:449
decode-udp.h
Packet_::action
uint8_t action
Definition: decode.h:553
PktProfilingDetectData
struct PktProfilingDetectData_ PktProfilingDetectData
decode-null.h
Packet_::vlan_idx
uint8_t vlan_idx
Definition: decode.h:442
Flow_
Flow data structure.
Definition: flow.h:347
DecodeThreadVars_::counter_flow_get_used_eval
uint16_t counter_flow_get_used_eval
Definition: decode.h:689
LiveDevice_
Definition: util-device.h:40
PROF_DETECT_SIZE
@ PROF_DETECT_SIZE
Definition: suricata-common.h:435
PktVar_::next
struct PktVar_ * next
Definition: decode.h:318
DecoderFunc
int(* DecoderFunc)(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p, const uint8_t *pkt, uint32_t len)
Definition: decode.h:974
PktProfilingTmmData_::ticks_end
uint64_t ticks_end
Definition: decode.h:332
Packet_::ipfw_v
IPFWPacketVars ipfw_v
Definition: decode.h:468
Packet_::pool
struct PktPool_ * pool
Definition: decode.h:608
Packet_::ip4vars
IPV4Vars ip4vars
Definition: decode.h:515
IS_TUNNEL_ROOT_PKT
#define IS_TUNNEL_ROOT_PKT(p)
Definition: decode.h:897
CHECKSUM_VALIDATION_RXONLY
@ CHECKSUM_VALIDATION_RXONLY
Definition: decode.h:46
Packet_::ip6vars
IPV6Vars ip6vars
Definition: decode.h:517
DECODE_TUNNEL_ERSPANI
@ DECODE_TUNNEL_ERSPANI
Definition: decode.h:905
LINKTYPE_LINUX_SLL
#define LINKTYPE_LINUX_SLL
Definition: decode.h:1089
PktProfilingTmmData
struct PktProfilingTmmData_ PktProfilingTmmData
Per TMM stats storage.
DecodeThreadVars_::counter_teredo
uint16_t counter_teredo
Definition: decode.h:666
DecodeThreadVars_::counter_erspan
uint16_t counter_erspan
Definition: decode.h:670
PacketCopyDataOffset
int PacketCopyDataOffset(Packet *p, uint32_t offset, const uint8_t *data, uint32_t datalen)
Copy data to Packet payload at given offset.
Definition: decode.c:221
DecodeVXLAN
int DecodeVXLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-vxlan.c:125
AppLayerDecoderEventsResetEvents
void AppLayerDecoderEventsResetEvents(AppLayerDecoderEvents *events)
Definition: app-layer-events.c:141
Packet_::pppoesh
PPPOESessionHdr * pppoesh
Definition: decode.h:542
DecodeThreadVars_::counter_raw
uint16_t counter_raw
Definition: decode.h:655
SCMutexLock
#define SCMutexLock(mut)
Definition: threads-debug.h:117
DecodeThreadVars
struct DecodeThreadVars_ DecodeThreadVars
Structure to hold thread specific data for all decode modules.
PktProfilingPrefilterData_
Definition: decode.h:374
PacketAlerts_::drop
PacketAlert drop
Definition: decode.h:303
Address_
Definition: decode.h:116
CHECKSUM_VALIDATION_DISABLE
@ CHECKSUM_VALIDATION_DISABLE
Definition: decode.h:43
DecodeThreadVars_::counter_flow_tcp
uint16_t counter_flow_tcp
Definition: decode.h:683
CHECKSUM_VALIDATION_KERNEL
@ CHECKSUM_VALIDATION_KERNEL
Definition: decode.h:47
PacketDecodeFinalize
void PacketDecodeFinalize(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p)
Finalize decoding of a packet.
Definition: decode.c:118
Address_::address_un_data32
uint32_t address_un_data32[4]
Definition: decode.h:119
Packet_::tcpvars
TCPVars tcpvars
Definition: decode.h:523
proto
uint8_t proto
Definition: decode-template.h:0
m
SCMutex m
Definition: flow-hash.h:6
DecodeICMPV6
int DecodeICMPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Decode ICMPV6 packets and fill the Packet with the decoded info.
Definition: decode-icmpv6.c:188
PktProfilingDetectData_::ticks_end
uint64_t ticks_end
Definition: decode.h:356
PacketAlert
struct PacketAlert_ PacketAlert
Packet_::host_dst
struct Host_ * host_dst
Definition: decode.h:567
PktProfilingLoggerData
struct PktProfilingLoggerData_ PktProfilingLoggerData
Packet_::flowflags
uint8_t flowflags
Definition: decode.h:445
PktProfilingPrefilterEngine
struct PktProfilingPrefilterEngine_ PktProfilingPrefilterEngine
Packet_::BypassPacketsFlow
int(* BypassPacketsFlow)(struct Packet_ *)
Definition: decode.h:496
ALPROTO_MAX
@ ALPROTO_MAX
Definition: app-layer-protos.h:68
DecodeThreadVars_::counter_max_mac_addrs_src
uint16_t counter_max_mac_addrs_src
Definition: decode.h:640
PktProfiling_::app
PktProfilingAppData app[ALPROTO_MAX]
Definition: decode.h:386
PktProfiling_::ticks_start
uint64_t ticks_start
Definition: decode.h:381
DecodeUnregisterCounters
void DecodeUnregisterCounters(void)
Definition: decode.c:474
rww_lock_contention
thread_local uint64_t rww_lock_contention
Packet_::payload_len
uint16_t payload_len
Definition: decode.h:550
DecodeThreadVars_::counter_flow_get_used
uint16_t counter_flow_get_used
Definition: decode.h:688
Packet_::alerts
PacketAlerts alerts
Definition: decode.h:564
Packet_::tunnel_tpr_cnt
uint16_t tunnel_tpr_cnt
Definition: decode.h:600
AppLayerDecoderEvents_
Data structure to store app layer decoder events.
Definition: app-layer-events.h:34
Packet_::app_layer_events
AppLayerDecoderEvents * app_layer_events
Definition: decode.h:576
Packet_::events
PacketEngineEvents events
Definition: decode.h:574
ETHERNET_TYPE_8021QINQ
#define ETHERNET_TYPE_8021QINQ
Definition: decode-ethernet.h:47
DecodeThreadVars_::counter_flow_spare_sync_empty
uint16_t counter_flow_spare_sync_empty
Definition: decode.h:695
PktProfilingAppData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:361
DecodeThreadVars_::counter_flow_tcp_reuse
uint16_t counter_flow_tcp_reuse
Definition: decode.h:687
DecodeRaw
int DecodeRaw(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-raw.c:46
PacketAlert_::tx_id
uint64_t tx_id
Definition: decode.h:280
Packet_::icmp_d
struct Packet_::@42::@50 icmp_d
rwr_lock_contention
thread_local uint64_t rwr_lock_contention
LINKTYPE_NULL
#define LINKTYPE_NULL
Definition: decode.h:1087
PacketAlert_::action
uint8_t action
Definition: decode.h:277
detect-reference.h
Packet_::datalink
int datalink
Definition: decode.h:583
Packet_::profile
PktProfiling * profile
Definition: decode.h:611
spin_lock_wait_ticks
thread_local uint64_t spin_lock_wait_ticks
CHECKSUM_VALIDATION_ENABLE
@ CHECKSUM_VALIDATION_ENABLE
Definition: decode.h:44
decode-gre.h
DecodeRegisterPerfCounters
void DecodeRegisterPerfCounters(DecodeThreadVars *, ThreadVars *)
Definition: decode.c:484
Packet_::level3_comp_csum
int32_t level3_comp_csum
Definition: decode.h:505
DecodeThreadVars_::counter_flow_spare_sync
uint16_t counter_flow_spare_sync
Definition: decode.h:694
DECODE_TUNNEL_ERSPANII
@ DECODE_TUNNEL_ERSPANII
Definition: decode.h:904
CHECKSUM_VALIDATION_AUTO
@ CHECKSUM_VALIDATION_AUTO
Definition: decode.h:45
DecodeThreadVars_::counter_ipv6inipv6
uint16_t counter_ipv6inipv6
Definition: decode.h:669
Packet_::pktlen
uint32_t pktlen
Definition: decode.h:558
decode-ipv6.h
TUNNEL_PKT_TPR
#define TUNNEL_PKT_TPR(p)
Definition: decode.h:892
Packet_::level4_comp_csum
int32_t level4_comp_csum
Definition: decode.h:507
util-debug.h
DecodeThreadVars_::counter_flow_get_used_failed
uint16_t counter_flow_get_used_failed
Definition: decode.h:692
PKT_SRC_WIRE
@ PKT_SRC_WIRE
Definition: decode.h:51
source-nfq.h
Packet_::pktvar
PktVar * pktvar
Definition: decode.h:499
CaptureStats_::counter_ips_rejected
uint16_t counter_ips_rejected
Definition: decode.h:711
DecodeThreadVars_::counter_icmpv4
uint16_t counter_icmpv4
Definition: decode.h:651
DecodeThreadVars_::counter_ppp
uint16_t counter_ppp
Definition: decode.h:658
ETHERNET_TYPE_8021AD
#define ETHERNET_TYPE_8021AD
Definition: decode-ethernet.h:43
PacketAlert_::num
SigIntId num
Definition: decode.h:276
SCMutexUnlock
#define SCMutexUnlock(mut)
Definition: threads-debug.h:119
PacketSwap
void PacketSwap(Packet *p)
switch direction of a packet
Definition: decode.c:449
DecodeMPLS
int DecodeMPLS(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-mpls.c:47
AppLayerThreadCtx_
This is for the app layer in general and it contains per thread context relevant to both the alpd and...
Definition: app-layer.c:56
PktSrcEnum
PktSrcEnum
Definition: decode.h:50
flow-worker.h
PktVar_::value
uint8_t * value
Definition: decode.h:324
PktProfilingAppData
struct PktProfilingAppData_ PktProfilingAppData
DecodeTunnelProto
DecodeTunnelProto
Definition: decode.h:902
Packet_::prev
struct Packet_ * prev
Definition: decode.h:580
Packet
struct Packet_ Packet
decode-ppp.h
Packet_::pcap_v
PcapPacketVars pcap_v
Definition: decode.h:489
IS_TUNNEL_PKT_VERDICTED
#define IS_TUNNEL_PKT_VERDICTED(p)
Definition: decode.h:899
CaptureStatsSetup
void CaptureStatsSetup(ThreadVars *tv, CaptureStats *s)
Definition: decode.c:748
PKT_SRC_DECODER_TEREDO
@ PKT_SRC_DECODER_TEREDO
Definition: decode.h:55
DecodeTEMPLATE
int DecodeTEMPLATE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Function to decode TEMPLATE packets.
Definition: decode-template.c:49
Packet_::tunnel_rtv_cnt
uint16_t tunnel_rtv_cnt
Definition: decode.h:598
DecodeVLAN
int DecodeVLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-vlan.c:59
rww_lock_cnt
thread_local uint64_t rww_lock_cnt
Packet_::ethh
EthernetHdr * ethh
Definition: decode.h:502
ThreadVars_
Per thread variable structure.
Definition: threadvars.h:58
mutex_lock_contention
thread_local uint64_t mutex_lock_contention
spin_lock_contention
thread_local uint64_t spin_lock_contention
PktProfilingData_
Definition: decode.h:349
DECODE_TUNNEL_PPP
@ DECODE_TUNNEL_PPP
Definition: decode.h:910
Packet_::sp
Port sp
Definition: decode.h:421
PktProfiling_::logger
PktProfilingLoggerData logger[LOGGER_SIZE]
Definition: decode.h:388
PacketFree
void PacketFree(Packet *p)
Return a malloced packet.
Definition: decode.c:105
PktSrcToString
const char * PktSrcToString(enum PktSrcEnum pkt_src)
Definition: decode.c:691
PktVar
struct PktVar_ PktVar
DecodeThreadVars_::counter_vlan_qinq
uint16_t counter_vlan_qinq
Definition: decode.h:662
IPV6Vars_
get the highest proto/next header field we know
Definition: decode-ipv6.h:104
LINKTYPE_GRE_OVER_IP
#define LINKTYPE_GRE_OVER_IP
Definition: decode.h:1096
LINKTYPE_PPP
#define LINKTYPE_PPP
Definition: decode.h:1090
PktProfilingDetectData_
Definition: decode.h:354
PktVar_::key
uint8_t * key
Definition: decode.h:323
decode-icmpv6.h
source-pfring.h
DecodeSll
int DecodeSll(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-sll.c:39
DecodeThreadVars_::counter_defrag_ipv6_timeouts
uint16_t counter_defrag_ipv6_timeouts
Definition: decode.h:678
LOGGER_SIZE
@ LOGGER_SIZE
Definition: suricata-common.h:491
PacketCallocExtPkt
int PacketCallocExtPkt(Packet *p, int datalen)
Definition: decode.c:195
Address
struct Address_ Address
AppLayerDecoderEventsFreeEvents
void AppLayerDecoderEventsFreeEvents(AppLayerDecoderEvents **events)
Definition: app-layer-events.c:148
ETHERNET_TYPE_MPLS_UNICAST
#define ETHERNET_TYPE_MPLS_UNICAST
Definition: decode-mpls.h:29
PKT_SRC_STREAM_TCP_DETECTLOG_FLUSH
@ PKT_SRC_STREAM_TCP_DETECTLOG_FLUSH
Definition: decode.h:58
DECODE_TUNNEL_VLAN
@ DECODE_TUNNEL_VLAN
Definition: decode.h:906
Packet_::icmpv6h
ICMPV6Hdr * icmpv6h
Definition: decode.h:539
util-napatech.h
ETHERNET_TYPE_PPPOE_DISC
#define ETHERNET_TYPE_PPPOE_DISC
Definition: decode-ethernet.h:41
PKT_SRC_DECODER_IPV6
@ PKT_SRC_DECODER_IPV6
Definition: decode.h:54
CaptureStats_::counter_ips_accepted
uint16_t counter_ips_accepted
Definition: decode.h:709
IPV6Hdr_
Definition: decode-ipv6.h:32
Packet_
Definition: decode.h:414
DECODE_TUNNEL_IPV4
@ DECODE_TUNNEL_IPV4
Definition: decode.h:907
decode-sll.h
DecodeThreadVars_::app_tctx
AppLayerThreadCtx * app_tctx
Definition: decode.h:633
DecodeThreadVars_::counter_defrag_ipv4_timeouts
uint16_t counter_defrag_ipv4_timeouts
Definition: decode.h:675
decode-icmpv4.h
DecodeThreadVars_::counter_sll
uint16_t counter_sll
Definition: decode.h:654
source-ipfw.h
Address_::address_un_data8
uint8_t address_un_data8[16]
Definition: decode.h:121
TMM_SIZE
@ TMM_SIZE
Definition: tm-threads-common.h:75
PacketEngineEvents_
Definition: decode.h:311
source-netmap.h
Packet_::ip4h
IPV4Hdr * ip4h
Definition: decode.h:509
Port
uint16_t Port
Definition: decode.h:241
DecodeThreadVars_::counter_sctp
uint16_t counter_sctp
Definition: decode.h:657
Packet_::livedev
struct LiveDevice_ * livedev
Definition: decode.h:562
source-windivert.h
DecodeThreadVars_::counter_invalid
uint16_t counter_invalid
Definition: decode.h:643
DecodeThreadVars_::counter_ieee8021ah
uint16_t counter_ieee8021ah
Definition: decode.h:664
rww_lock_wait_ticks
thread_local uint64_t rww_lock_wait_ticks
DecodeTCP
int DecodeTCP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-tcp.c:234
DecodeThreadVars_::counter_ipv4inipv6
uint16_t counter_ipv4inipv6
Definition: decode.h:668
DecodeThreadVars_::counter_vlan
uint16_t counter_vlan
Definition: decode.h:661
DECODE_TUNNEL_ETHERNET
@ DECODE_TUNNEL_ETHERNET
Definition: decode.h:903
DecodeThreadVars_::counter_tcp
uint16_t counter_tcp
Definition: decode.h:649
ETHERNET_TYPE_DCE
#define ETHERNET_TYPE_DCE
Definition: decode-ethernet.h:49
DecodeThreadVars_::counter_pkts
uint16_t counter_pkts
Definition: decode.h:636
rwr_lock_wait_ticks
thread_local uint64_t rwr_lock_wait_ticks
decode-events.h
PktProfilingPrefilterEngine_
Definition: decode.h:370
PktProfilingData_::ticks_start
uint64_t ticks_start
Definition: decode.h:350
DecodeNull
int DecodeNull(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-null.c:48
dtv
DecodeThreadVars * dtv
Definition: fuzz_decodepcapfile.c:30
Packet_::icmp_s
struct Packet_::@40::@49 icmp_s
DecodeIPV4
int DecodeIPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-ipv4.c:517
PktProfilingPrefilterData
struct PktProfilingPrefilterData_ PktProfilingPrefilterData
Packet_::ntpv
NapatechPacketVars ntpv
Definition: decode.h:614
decode-vlan.h
IPV4Hdr_
Definition: decode-ipv4.h:71
default_packet_size
uint32_t default_packet_size
Definition: decode.c:71
LINKTYPE_RAW
#define LINKTYPE_RAW
Definition: decode.h:1091
PacketAlert_::flags
uint8_t flags
Definition: decode.h:278
PKT_SRC_DECODER_GENEVE
@ PKT_SRC_DECODER_GENEVE
Definition: decode.h:62
decode-ipv4.h
DecodeThreadVars_::counter_chdlc
uint16_t counter_chdlc
Definition: decode.h:646
Packet_::ppph
PPPHdr * ppph
Definition: decode.h:541
Packet_::nfq_v
NFQPacketVars nfq_v
Definition: decode.h:465
ICMPV6Hdr_
Definition: decode-icmpv6.h:145
PktProfiling_::detect
PktProfilingDetectData detect[PROF_DETECT_SIZE]
Definition: decode.h:387
Packet_::icmpv4vars
ICMPV4Vars icmpv4vars
Definition: decode.h:524
Packet_::ReleasePacket
void(* ReleasePacket)(struct Packet_ *)
Definition: decode.h:493
Packet_::tenant_id
uint32_t tenant_id
Definition: decode.h:603
Packet_::flow
struct Flow_ * flow
Definition: decode.h:451
DecodeGRE
int DecodeGRE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Function to decode GRE packets.
Definition: decode-gre.c:46
ICMPV6Vars_
Definition: decode-icmpv6.h:162
PktProfiling
struct PktProfiling_ PktProfiling
Per pkt stats storage.
DecodeThreadVarsFree
void DecodeThreadVarsFree(ThreadVars *, DecodeThreadVars *)
Definition: decode.c:658
IPFWPacketVars_
Definition: source-ipfw.h:32
PktProfilingLoggerData_::ticks_end
uint64_t ticks_end
Definition: decode.h:366
PktProfilingPrefilterEngine_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:371
DecodeThreadVars_::counter_flow_spare_sync_incomplete
uint16_t counter_flow_spare_sync_incomplete
Definition: decode.h:696
Packet_::ts
struct timeval ts
Definition: decode.h:457
DecodeGlobalConfig
void DecodeGlobalConfig(void)
Definition: decode.c:756
ChecksumValidationMode
ChecksumValidationMode
Definition: decode.h:42
suricata-common.h
PKT_SRC_FFR
@ PKT_SRC_FFR
Definition: decode.h:57
DecodeIPV6FragHeader
void DecodeIPV6FragHeader(Packet *p, const uint8_t *pkt, uint16_t hdrextlen, uint16_t plen, uint16_t prev_hdrextlen)
Definition: decode-ipv6.c:100
ETHERNET_TYPE_8021AH
#define ETHERNET_TYPE_8021AH
Definition: decode-ethernet.h:44
NFQPacketVars_
Definition: source-nfq.h:40
DecodeThreadVars_::counter_flow_icmp6
uint16_t counter_flow_icmp6
Definition: decode.h:686
Packet_::tcph
TCPHdr * tcph
Definition: decode.h:531
DecodeThreadVars_::counter_ipv6
uint16_t counter_ipv6
Definition: decode.h:648
PROFILE_FLOWWORKER_SIZE
@ PROFILE_FLOWWORKER_SIZE
Definition: flow-worker.h:29
CaptureStats_::counter_ips_replaced
uint16_t counter_ips_replaced
Definition: decode.h:712
ETHERNET_DCE_HEADER_LEN
#define ETHERNET_DCE_HEADER_LEN
Definition: decode-ethernet.h:30
DecodeThreadVars_::counter_gre
uint16_t counter_gre
Definition: decode.h:660
DECODE_EVENT_MAX
@ DECODE_EVENT_MAX
Definition: decode-events.h:271
Packet_::ext_pkt
uint8_t * ext_pkt
Definition: decode.h:559
PacketAlerts
struct PacketAlerts_ PacketAlerts
DecodeICMPV4
int DecodeICMPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Main ICMPv4 decoding function.
Definition: decode-icmpv4.c:155
SCLogError
#define SCLogError(err_code,...)
Macro used to log ERROR messages.
Definition: util-debug.h:257
DecodeThreadVars_::counter_defrag_ipv6_reassembled
uint16_t counter_defrag_ipv6_reassembled
Definition: decode.h:677
DecodeThreadVars_::counter_udp
uint16_t counter_udp
Definition: decode.h:650
PacketUpdateEngineEventCounters
void PacketUpdateEngineEventCounters(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p)
Definition: decode.c:125
decode-sctp.h
decode-geneve.h
CaptureStatsUpdate
void CaptureStatsUpdate(ThreadVars *tv, CaptureStats *s, const Packet *p)
Definition: decode.c:735
PKT_SRC_DEFRAG
@ PKT_SRC_DEFRAG
Definition: decode.h:56
Packet_::icmpv4h
ICMPV4Hdr * icmpv4h
Definition: decode.h:537
tv
ThreadVars * tv
Definition: fuzz_decodepcapfile.c:29
PfringPacketVars_
per packet Pfring vars
Definition: source-pfring.h:60
NetmapPacketVars_
Definition: source-netmap.h:73
DecodeThreadVars_::counter_ipv4
uint16_t counter_ipv4
Definition: decode.h:647
Packet_::l4vars
union Packet_::@48 l4vars
threadvars.h
PacketGetFromAlloc
Packet * PacketGetFromAlloc(void)
Get a malloced packet.
Definition: decode.c:144
TUNNEL_PKT_RTV
#define TUNNEL_PKT_RTV(p)
Definition: decode.h:891
source-af-packet.h
PKT_SRC_DECODER_VXLAN
@ PKT_SRC_DECODER_VXLAN
Definition: decode.h:59
mutex_lock_wait_ticks
thread_local uint64_t mutex_lock_wait_ticks
Packet_::next
struct Packet_ * next
Definition: decode.h:579
Packet_::flow_hash
uint32_t flow_hash
Definition: decode.h:455
PACKET_ALERT_MAX
#define PACKET_ALERT_MAX
Definition: decode.h:296
Packet_::root
struct Packet_ * root
Definition: decode.h:586
DecodeThreadVars_::counter_pppoe
uint16_t counter_pppoe
Definition: decode.h:665
PktProfilingPrefilterData_::size
uint32_t size
Definition: decode.h:376
DecodeThreadVars_::counter_mpls
uint16_t counter_mpls
Definition: decode.h:667
PKT_SRC_DETECT_RELOAD_FLUSH
@ PKT_SRC_DETECT_RELOAD_FLUSH
Definition: decode.h:60
PktProfilingData
struct PktProfilingData_ PktProfilingData
Packet_::pkt_src
uint8_t pkt_src
Definition: decode.h:555
ETHERNET_TYPE_PPPOE_SESS
#define ETHERNET_TYPE_PPPOE_SESS
Definition: decode-ethernet.h:42
DecodeThreadVars_
Structure to hold thread specific data for all decode modules.
Definition: decode.h:631
PACKET_ENGINE_EVENT_MAX
#define PACKET_ENGINE_EVENT_MAX
Definition: decode.h:308
Packet_::recursion_level
uint8_t recursion_level
Definition: decode.h:439
PktProfilingLoggerData_
Definition: decode.h:364
PktProfiling_::tmm
PktProfilingTmmData tmm[TMM_SIZE]
Definition: decode.h:384
Signature_
Signature container.
Definition: detect.h:528
DecodeThreadVars_::output_flow_thread_data
void * output_flow_thread_data
Definition: decode.h:703
DecodeThreadVars_::counter_geneve
uint16_t counter_geneve
Definition: decode.h:659
ETHERNET_TYPE_ARP
#define ETHERNET_TYPE_ARP
Definition: decode-ethernet.h:35
DecodeThreadVars_::counter_max_mac_addrs_dst
uint16_t counter_max_mac_addrs_dst
Definition: decode.h:641
Packet_::pppoedh
PPPOEDiscoveryHdr * pppoedh
Definition: decode.h:543
DecodeThreadVarsAlloc
DecodeThreadVars * DecodeThreadVarsAlloc(ThreadVars *)
Alloc and setup DecodeThreadVars.
Definition: decode.c:639
DecodeThreadVars_::counter_defrag_max_hit
uint16_t counter_defrag_max_hit
Definition: decode.h:679
PacketSetData
int PacketSetData(Packet *p, const uint8_t *pktdata, uint32_t pktlen)
Set data for Packet and set length when zero copy is used.
Definition: decode.c:678
decode-chdlc.h
SC_ERR_DATALINK_UNIMPLEMENTED
@ SC_ERR_DATALINK_UNIMPLEMENTED
Definition: util-error.h:68
LINKTYPE_CISCO_HDLC
#define LINKTYPE_CISCO_HDLC
Definition: decode.h:1097
PktVar_::value_len
uint16_t value_len
Definition: decode.h:322
app-layer-protos.h
DecodeThreadVars_::counter_null
uint16_t counter_null
Definition: decode.h:656
DecodeThreadVars_::counter_icmpv6
uint16_t counter_icmpv6
Definition: decode.h:652
Packet_::udph
UDPHdr * udph
Definition: decode.h:533
PcapPacketVars_
Definition: source-pcap.h:36
Address_::address
union Address_::@39 address
Address_::family
char family
Definition: decode.h:117
Packet_::dst
Address dst
Definition: decode.h:419
PKT_SRC_DECODER_GRE
@ PKT_SRC_DECODER_GRE
Definition: decode.h:52
ENGINE_SET_INVALID_EVENT
#define ENGINE_SET_INVALID_EVENT(p, e)
Definition: decode.h:1011
PktProfilingTmmData_::ticks_start
uint64_t ticks_start
Definition: decode.h:331
PacketAlert_
Definition: decode.h:275
PktProfilingLoggerData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:367
DecodeThreadVars_::counter_flow_memcap
uint16_t counter_flow_memcap
Definition: decode.h:681
ETHERNET_TYPE_VLAN
#define ETHERNET_TYPE_VLAN
Definition: decode-vlan.h:31
DecodeThreadVars_::counter_defrag_ipv6_fragments
uint16_t counter_defrag_ipv6_fragments
Definition: decode.h:676
PktVar_
Definition: decode.h:316
AFPPacketVars_
per packet AF_PACKET vars
Definition: source-af-packet.h:144
PacketEngineEvents
struct PacketEngineEvents_ PacketEngineEvents
DecodeIEEE8021ah
int DecodeIEEE8021ah(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
PktProfilingDetectData_::ticks_start
uint64_t ticks_start
Definition: decode.h:355
VLAN_HEADER_TOO_MANY_LAYERS
@ VLAN_HEADER_TOO_MANY_LAYERS
Definition: decode-events.h:146
PacketDefragPktSetupParent
void PacketDefragPktSetupParent(Packet *parent)
inform defrag "parent" that a pseudo packet is now associated to it.
Definition: decode.c:391
Packet_::plugin_v
uint8_t plugin_v[PLUGIN_VAR_SIZE]
Definition: decode.h:486
Packet_::ip6h
IPV6Hdr * ip6h
Definition: decode.h:511
Packet_::icmpv6vars
ICMPV6Vars icmpv6vars
Definition: decode.h:525
PacketTunnelPktSetup
Packet * PacketTunnelPktSetup(ThreadVars *tv, DecodeThreadVars *dtv, Packet *parent, const uint8_t *pkt, uint32_t len, enum DecodeTunnelProto proto)
Setup a pseudo packet (tunnel)
Definition: decode.c:278
PktProfiling_::flowworker
PktProfilingData flowworker[PROFILE_FLOWWORKER_SIZE]
Definition: decode.h:385
mutex_lock_cnt
thread_local uint64_t mutex_lock_cnt
NFLOGPacketVars_
Definition: source-nflog.h:55
DecodeTunnel
int DecodeTunnel(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t, enum DecodeTunnelProto) WARN_UNUSED
Definition: decode.c:76
SigIntId
#define SigIntId
Definition: suricata-common.h:297
PacketAlerts_
Definition: decode.h:298
Packet_::dp
Port dp
Definition: decode.h:429
PktVar_::key_len
uint16_t key_len
Definition: decode.h:321
PktProfilingAppData_
Definition: decode.h:360
Host_
Definition: host.h:58
g_default_mtu
int g_default_mtu
Definition: suricata.c:221
DecodeThreadVars_::counter_flow_get_used_eval_reject
uint16_t counter_flow_get_used_eval_reject
Definition: decode.h:690
PktProfiling_::proto_detect
uint64_t proto_detect
Definition: decode.h:389
DecodePPPOESession
int DecodePPPOESession(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Main decoding function for PPPOE Session packets.
Definition: decode-pppoe.c:130
ETHERNET_TYPE_MPLS_MULTICAST
#define ETHERNET_TYPE_MPLS_MULTICAST
Definition: decode-mpls.h:30
Packet_::type
uint8_t type
Definition: decode.h:424
ETHERNET_TYPE_IP
#define ETHERNET_TYPE_IP
Definition: decode-ethernet.h:34
AppLayerDecoderEvents_::events
uint8_t * events
Definition: app-layer-events.h:36
SCMutex
#define SCMutex
Definition: threads-debug.h:114
DECODE_TUNNEL_UNSET
@ DECODE_TUNNEL_UNSET
Definition: decode.h:911
PacketGetFromQueueOrAlloc
Packet * PacketGetFromQueueOrAlloc(void)
Get a packet. We try to get a packet from the packetpool first, but if that is empty we alloc a packe...
Definition: decode.c:180
PktProfilingLoggerData_::ticks_start
uint64_t ticks_start
Definition: decode.h:365
Packet_::src
Address src
Definition: decode.h:418
WARN_UNUSED
#define WARN_UNUSED
Definition: suricata-common.h:389
DecodeERSPANTypeI
int DecodeERSPANTypeI(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
ERSPAN Type I.
Definition: decode-erspan.c:64
DecodeCHDLC
int DecodeCHDLC(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-chdlc.c:41
DecodeUpdatePacketCounters
void DecodeUpdatePacketCounters(ThreadVars *tv, const DecodeThreadVars *dtv, const Packet *p)
Definition: decode.c:605
DecodeThreadVars_::counter_engine_events
uint16_t counter_engine_events[DECODE_EVENT_MAX]
Definition: decode.h:699
Packet_::tunnel_mutex
SCMutex tunnel_mutex
Definition: decode.h:596
LINKTYPE_ETHERNET
#define LINKTYPE_ETHERNET
Definition: decode.h:1088
Packet_::ip6eh
IPV6ExtHdrs ip6eh
Definition: decode.h:518
PktProfilingDetectData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:357
PktVar_::id
uint32_t id
Definition: decode.h:317
DecodeThreadVars_::counter_defrag_ipv4_fragments
uint16_t counter_defrag_ipv4_fragments
Definition: decode.h:673
PacketEngineEvents_::cnt
uint8_t cnt
Definition: decode.h:312
DecodePPPOEDiscovery
int DecodePPPOEDiscovery(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Main decoding function for PPPOE Discovery packets.
Definition: decode-pppoe.c:50