suricata
decode.h
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1 /* Copyright (C) 2007-2024 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 SURICATA_DECODE_H
25 #define SURICATA_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"
36 #ifdef PROFILING
37 #include "flow-worker.h"
38 #include "app-layer-protos.h"
39 #endif
40 
41 #ifdef HAVE_NAPATECH
42 #include "util-napatech.h"
43 #endif /* HAVE_NAPATECH */
44 
45 typedef enum {
53 
54 enum PktSrcEnum {
68 };
69 
70 #include "source-nflog.h"
71 #include "source-nfq.h"
72 #include "source-ipfw.h"
73 #include "source-pcap.h"
74 #include "source-af-packet.h"
75 #include "source-netmap.h"
76 #include "source-windivert.h"
77 #ifdef HAVE_DPDK
78 #include "source-dpdk.h"
79 #endif
80 #ifdef HAVE_PF_RING_FLOW_OFFLOAD
81 #include "source-pfring.h"
82 #endif
83 #ifdef HAVE_AF_XDP
84 #include "source-af-xdp.h"
85 #endif
86 
87 #include "decode-ethernet.h"
88 #include "decode-gre.h"
89 #include "decode-ppp.h"
90 #include "decode-ipv4.h"
91 #include "decode-ipv6.h"
92 #include "decode-icmpv4.h"
93 #include "decode-icmpv6.h"
94 #include "decode-tcp.h"
95 #include "decode-udp.h"
96 #include "decode-sctp.h"
97 #include "decode-esp.h"
98 #include "decode-vlan.h"
99 #include "decode-mpls.h"
100 #include "decode-arp.h"
101 
102 #include "util-validate.h"
103 
104 /* forward declarations */
105 struct DetectionEngineThreadCtx_;
107 
108 struct PktPool_;
109 
110 /* declare these here as they are called from the
111  * PACKET_RECYCLE and PACKET_CLEANUP macro's. */
115 
116 /* Address */
117 typedef struct Address_ {
118  char family;
119  union {
120  uint32_t address_un_data32[4]; /* type-specific field */
121  uint16_t address_un_data16[8]; /* type-specific field */
122  uint8_t address_un_data8[16]; /* type-specific field */
123  struct in6_addr address_un_in6;
126 
127 #define addr_data32 address.address_un_data32
128 #define addr_data16 address.address_un_data16
129 #define addr_data8 address.address_un_data8
130 #define addr_in6addr address.address_un_in6
131 
132 #define COPY_ADDRESS(a, b) do { \
133  (b)->family = (a)->family; \
134  (b)->addr_data32[0] = (a)->addr_data32[0]; \
135  (b)->addr_data32[1] = (a)->addr_data32[1]; \
136  (b)->addr_data32[2] = (a)->addr_data32[2]; \
137  (b)->addr_data32[3] = (a)->addr_data32[3]; \
138  } while (0)
139 
140 /* Set the IPv4 addresses into the Addrs of the Packet.
141  * Make sure p->ip4h is initialized and validated.
142  *
143  * We set the rest of the struct to 0 so we can
144  * prevent using memset. */
145 #define SET_IPV4_SRC_ADDR(ip4h, a) \
146  do { \
147  (a)->family = AF_INET; \
148  (a)->addr_data32[0] = (uint32_t)(ip4h)->s_ip_src.s_addr; \
149  (a)->addr_data32[1] = 0; \
150  (a)->addr_data32[2] = 0; \
151  (a)->addr_data32[3] = 0; \
152  } while (0)
153 
154 #define SET_IPV4_DST_ADDR(ip4h, a) \
155  do { \
156  (a)->family = AF_INET; \
157  (a)->addr_data32[0] = (uint32_t)(ip4h)->s_ip_dst.s_addr; \
158  (a)->addr_data32[1] = 0; \
159  (a)->addr_data32[2] = 0; \
160  (a)->addr_data32[3] = 0; \
161  } while (0)
162 
163 /* Set the IPv6 addresses into the Addrs of the Packet. */
164 #define SET_IPV6_SRC_ADDR(ip6h, a) \
165  do { \
166  (a)->family = AF_INET6; \
167  (a)->addr_data32[0] = (ip6h)->s_ip6_src[0]; \
168  (a)->addr_data32[1] = (ip6h)->s_ip6_src[1]; \
169  (a)->addr_data32[2] = (ip6h)->s_ip6_src[2]; \
170  (a)->addr_data32[3] = (ip6h)->s_ip6_src[3]; \
171  } while (0)
172 
173 #define SET_IPV6_DST_ADDR(ip6h, a) \
174  do { \
175  (a)->family = AF_INET6; \
176  (a)->addr_data32[0] = (ip6h)->s_ip6_dst[0]; \
177  (a)->addr_data32[1] = (ip6h)->s_ip6_dst[1]; \
178  (a)->addr_data32[2] = (ip6h)->s_ip6_dst[2]; \
179  (a)->addr_data32[3] = (ip6h)->s_ip6_dst[3]; \
180  } while (0)
181 
182 /* Set the TCP ports into the Ports of the Packet.
183  * Make sure p->tcph is initialized and validated. */
184 #define SET_TCP_SRC_PORT(pkt, prt) do { \
185  SET_PORT(TCP_GET_SRC_PORT((pkt)), *(prt)); \
186  } while (0)
187 
188 #define SET_TCP_DST_PORT(pkt, prt) do { \
189  SET_PORT(TCP_GET_DST_PORT((pkt)), *(prt)); \
190  } while (0)
191 
192 /* Set the UDP ports into the Ports of the Packet.
193  * Make sure p->udph is initialized and validated. */
194 #define SET_UDP_SRC_PORT(pkt, prt) do { \
195  SET_PORT(UDP_GET_SRC_PORT((pkt)), *(prt)); \
196  } while (0)
197 #define SET_UDP_DST_PORT(pkt, prt) do { \
198  SET_PORT(UDP_GET_DST_PORT((pkt)), *(prt)); \
199  } while (0)
200 
201 #define GET_IPV4_SRC_ADDR_U32(p) ((p)->src.addr_data32[0])
202 #define GET_IPV4_DST_ADDR_U32(p) ((p)->dst.addr_data32[0])
203 #define GET_IPV4_SRC_ADDR_PTR(p) ((p)->src.addr_data32)
204 #define GET_IPV4_DST_ADDR_PTR(p) ((p)->dst.addr_data32)
205 
206 #define GET_IPV6_SRC_IN6ADDR(p) ((p)->src.addr_in6addr)
207 #define GET_IPV6_DST_IN6ADDR(p) ((p)->dst.addr_in6addr)
208 #define GET_IPV6_SRC_ADDR(p) ((p)->src.addr_data32)
209 #define GET_IPV6_DST_ADDR(p) ((p)->dst.addr_data32)
210 #define GET_TCP_SRC_PORT(p) ((p)->sp)
211 #define GET_TCP_DST_PORT(p) ((p)->dp)
212 
213 #define GET_PKT_LEN(p) (p)->pktlen
214 #define GET_PKT_DATA(p) (((p)->ext_pkt == NULL) ? GET_PKT_DIRECT_DATA(p) : (p)->ext_pkt)
215 #define GET_PKT_DIRECT_DATA(p) (p)->pkt_data
216 #define GET_PKT_DIRECT_MAX_SIZE(p) (default_packet_size)
217 
218 #define SET_PKT_LEN(p, len) do { \
219  (p)->pktlen = (len); \
220  } while (0)
221 
222 /* Port is just a uint16_t */
223 typedef uint16_t Port;
224 #define SET_PORT(v, p) ((p) = (v))
225 #define COPY_PORT(a,b) ((b) = (a))
226 
227 #define CMP_ADDR(a1, a2) \
228  (((a1)->addr_data32[3] == (a2)->addr_data32[3] && \
229  (a1)->addr_data32[2] == (a2)->addr_data32[2] && \
230  (a1)->addr_data32[1] == (a2)->addr_data32[1] && \
231  (a1)->addr_data32[0] == (a2)->addr_data32[0]))
232 #define CMP_PORT(p1, p2) \
233  ((p1) == (p2))
234 
235 /*Given a packet pkt offset to the start of the ip header in a packet
236  *We determine the ip version. */
237 #define IP_GET_RAW_VER(pkt) ((((pkt)[0] & 0xf0) >> 4))
238 
239 #define PKT_IS_TCP(p) (((p)->tcph != NULL))
240 #define PKT_IS_UDP(p) (((p)->udph != NULL))
241 #define PKT_IS_ICMPV4(p) (((p)->icmpv4h != NULL))
242 #define PKT_IS_ICMPV6(p) (((p)->icmpv6h != NULL))
243 #define PKT_IS_TOSERVER(p) (((p)->flowflags & FLOW_PKT_TOSERVER))
244 #define PKT_IS_TOCLIENT(p) (((p)->flowflags & FLOW_PKT_TOCLIENT))
245 
246 /* structure to store the sids/gids/etc the detection engine
247  * found in this packet */
248 typedef struct PacketAlert_ {
249  SigIntId num; /* Internal num, used for sorting */
250  uint8_t action; /* Internal num, used for thresholding */
251  uint8_t flags;
252  const struct Signature_ *s;
253  uint64_t tx_id; /* Used for sorting */
254  int64_t frame_id;
256 
257 /* flag to indicate the rule action (drop/pass) needs to be applied to the flow */
258 #define PACKET_ALERT_FLAG_APPLY_ACTION_TO_FLOW 0x1
259 /** alert was generated based on state */
260 #define PACKET_ALERT_FLAG_STATE_MATCH 0x02
261 /** alert was generated based on stream */
262 #define PACKET_ALERT_FLAG_STREAM_MATCH 0x04
263 /** alert is in a tx, tx_id set */
264 #define PACKET_ALERT_FLAG_TX 0x08
265 /** action was changed by rate_filter */
266 #define PACKET_ALERT_RATE_FILTER_MODIFIED 0x10
267 /** alert is in a frame, frame_id set */
268 #define PACKET_ALERT_FLAG_FRAME 0x20
269 
270 extern uint16_t packet_alert_max;
271 #define PACKET_ALERT_MAX 15
272 
273 typedef struct PacketAlerts_ {
274  uint16_t cnt;
275  uint16_t discarded;
276  uint16_t suppressed;
278  /* single pa used when we're dropping,
279  * so we can log it out in the drop log. */
282 
284 
285 void PacketAlertFree(PacketAlert *pa);
286 
287 /** number of decoder events we support per packet. Power of 2 minus 1
288  * for memory layout */
289 #define PACKET_ENGINE_EVENT_MAX 15
290 
291 /** data structure to store decoder, defrag and stream events */
292 typedef struct PacketEngineEvents_ {
293  uint8_t cnt; /**< number of events */
294  uint8_t events[PACKET_ENGINE_EVENT_MAX]; /**< array of events */
296 
297 typedef struct PktVar_ {
298  uint32_t id;
299  struct PktVar_ *next; /* right now just implement this as a list,
300  * in the long run we have thing of something
301  * faster. */
302  uint16_t key_len;
303  uint16_t value_len;
304  uint8_t *key;
305  uint8_t *value;
307 
308 #ifdef PROFILING
309 
310 /** \brief Per TMM stats storage */
311 typedef struct PktProfilingTmmData_ {
312  uint64_t ticks_start;
313  uint64_t ticks_end;
314 #ifdef PROFILE_LOCKING
315  uint64_t mutex_lock_cnt;
316  uint64_t mutex_lock_wait_ticks;
317  uint64_t mutex_lock_contention;
318  uint64_t spin_lock_cnt;
319  uint64_t spin_lock_wait_ticks;
320  uint64_t spin_lock_contention;
321  uint64_t rww_lock_cnt;
322  uint64_t rww_lock_wait_ticks;
323  uint64_t rww_lock_contention;
324  uint64_t rwr_lock_cnt;
325  uint64_t rwr_lock_wait_ticks;
326  uint64_t rwr_lock_contention;
327 #endif
329 
330 typedef struct PktProfilingData_ {
331  uint64_t ticks_start;
332  uint64_t ticks_end;
334 
335 typedef struct PktProfilingDetectData_ {
336  uint64_t ticks_start;
337  uint64_t ticks_end;
338  uint64_t ticks_spent;
340 
341 typedef struct PktProfilingAppData_ {
342  uint64_t ticks_spent;
344 
345 typedef struct PktProfilingLoggerData_ {
346  uint64_t ticks_start;
347  uint64_t ticks_end;
348  uint64_t ticks_spent;
350 
351 /** \brief Per pkt stats storage */
352 typedef struct PktProfiling_ {
353  uint64_t ticks_start;
354  uint64_t ticks_end;
355 
360  uint64_t proto_detect;
363 
364 #endif /* PROFILING */
365 
376  PKT_DROP_REASON_RULES_THRESHOLD, /**< detection_filter in action */
381  PKT_DROP_REASON_NFQ_ERROR, /**< no nfq verdict, must be error */
382  PKT_DROP_REASON_INNER_PACKET, /**< drop issued by inner (tunnel) packet */
384 };
385 
390 };
391 
392 /* forward declaration since Packet struct definition requires this */
393 struct PacketQueue_;
394 
398 };
399 
400 struct PacketL2 {
401  enum PacketL2Types type;
402  union L2Hdrs {
403  EthernetHdr *ethh;
404  } hdrs;
405 };
406 
412 };
413 
414 struct PacketL3 {
415  enum PacketL3Types type;
416  /* Checksum for IP packets. */
417  bool csum_set;
418  uint16_t csum;
419  union Hdrs {
422  ARPHdr *arph;
423  } hdrs;
424  /* IPv4 and IPv6 are mutually exclusive */
425  union {
427  struct {
430  } ip6;
431  } vars;
432 };
433 
443 };
444 
445 struct PacketL4 {
446  enum PacketL4Types type;
447  bool csum_set;
448  uint16_t csum;
449  union L4Hdrs {
454  SCTPHdr *sctph;
455  GREHdr *greh;
456  ESPHdr *esph;
457  } hdrs;
458  union L4Vars {
462  } vars;
463 };
464 
465 /* sizes of the members:
466  * src: 17 bytes
467  * dst: 17 bytes
468  * sp/type: 1 byte
469  * dp/code: 1 byte
470  * proto: 1 byte
471  * recurs: 1 byte
472  *
473  * sum of above: 38 bytes
474  *
475  * flow ptr: 4/8 bytes
476  * flags: 1 byte
477  * flowflags: 1 byte
478  *
479  * sum of above 44/48 bytes
480  */
481 typedef struct Packet_
482 {
483  /* Addresses, Ports and protocol
484  * these are on top so we can use
485  * the Packet as a hash key */
488  union {
490  // icmp type and code of this packet
491  struct {
492  uint8_t type;
493  uint8_t code;
495  };
496  union {
498  // icmp type and code of the expected counterpart (for flows)
499  struct {
500  uint8_t type;
501  uint8_t code;
503  };
504  uint8_t proto;
505  /* make sure we can't be attacked on when the tunneled packet
506  * has the exact same tuple as the lower levels */
508 
510  uint8_t vlan_idx;
511 
512  /* flow */
513  uint8_t flowflags;
514  /* coccinelle: Packet:flowflags:FLOW_PKT_ */
515 
516  uint8_t app_update_direction; // enum StreamUpdateDir
517 
518  /* Pkt Flags */
519  uint32_t flags;
520 
521  struct Flow_ *flow;
522 
523  /* raw hash value for looking up the flow, will need to modulated to the
524  * hash size still */
525  uint32_t flow_hash;
526 
527  /* tunnel type: none, root or child */
528  enum PacketTunnelType ttype;
529 
531 
532  union {
533  /* nfq stuff */
534 #ifdef HAVE_NFLOG
535  NFLOGPacketVars nflog_v;
536 #endif /* HAVE_NFLOG */
537 #ifdef NFQ
539 #endif /* NFQ */
540 #ifdef IPFW
542 #endif /* IPFW */
543 #ifdef AF_PACKET
544  AFPPacketVars afp_v;
545 #endif
546 #ifdef HAVE_NETMAP
547  NetmapPacketVars netmap_v;
548 #endif
549 #ifdef HAVE_PFRING
550 #ifdef HAVE_PF_RING_FLOW_OFFLOAD
551  PfringPacketVars pfring_v;
552 #endif
553 #endif
554 #ifdef WINDIVERT
555  WinDivertPacketVars windivert_v;
556 #endif /* WINDIVERT */
557 #ifdef HAVE_DPDK
558  DPDKPacketVars dpdk_v;
559 #endif
560 #ifdef HAVE_NAPATECH
562 #endif
563 #ifdef HAVE_AF_XDP
564  AFXDPPacketVars afxdp_v;
565 #endif
566  /* A chunk of memory that a plugin can use for its packet vars. */
568 
569  /** libpcap vars: shared by Pcap Live mode and Pcap File mode */
571  };
572 
573  /** The release function for packet structure and data */
574  void (*ReleasePacket)(struct Packet_ *);
575  /** The function triggering bypass the flow in the capture method.
576  * Return 1 for success and 0 on error */
577  int (*BypassPacketsFlow)(struct Packet_ *);
578 
579  /* pkt vars */
581 
582  struct PacketL2 l2;
583  struct PacketL3 l3;
584  struct PacketL4 l4;
585 
586  /* ptr to the payload of the packet
587  * with it's length. */
588  uint8_t *payload;
589  uint16_t payload_len;
590 
591  /* IPS action to take */
592  uint8_t action;
593 
594  uint8_t pkt_src;
595 
596  /* storage: set to pointer to heap and extended via allocation if necessary */
597  uint32_t pktlen;
598  uint8_t *ext_pkt;
599 
600  /* Incoming interface */
602 
604 
605  struct Host_ *host_src;
606  struct Host_ *host_dst;
607 
608  /** packet number in the pcap file, matches wireshark */
609  uint64_t pcap_cnt;
610 
611 
612  /* engine events */
614 
616 
617  /* double linked list ptrs */
618  struct Packet_ *next;
619  struct Packet_ *prev;
620 
621  /** data linktype in host order */
622  int datalink;
623 
624  /* count decoded layers of packet : too many layers
625  * cause issues with performance and stability (stack exhaustion)
626  */
628 
629  /* enum PacketDropReason::PKT_DROP_REASON_* as uint8_t for compactness */
630  uint8_t drop_reason;
631 
632  /** has verdict on this tunneled packet been issued? */
634 
635  /* tunnel/encapsulation handling */
636  struct Packet_ *root; /* in case of tunnel this is a ptr
637  * to the 'real' packet, the one we
638  * need to set the verdict on --
639  * It should always point to the lowest
640  * packet in a encapsulated packet */
641 
642  /* ready to set verdict counter, only set in root */
643  uint16_t tunnel_rtv_cnt;
644  /* tunnel packet ref count */
645  uint16_t tunnel_tpr_cnt;
646 
647  /** tenant id for this packet, if any. If 0 then no tenant was assigned. */
648  uint32_t tenant_id;
649 
650  /* The Packet pool from which this packet was allocated. Used when returning
651  * the packet to its owner's stack. If NULL, then allocated with malloc.
652  */
653  struct PktPool_ *pool;
654 
655 #ifdef PROFILING
657 #endif
658  /* things in the packet that live beyond a reinit */
659  struct {
660  /** lock to protect access to:
661  * - tunnel_rtv_cnt
662  * - tunnel_tpr_cnt
663  * - tunnel_verdicted
664  * - nfq_v.mark (if p->ttype != PacketTunnelNone)
665  */
668 
669  /** flex array accessor to allocated packet data. Size of the additional
670  * data is `default_packet_size`. If this is insufficient,
671  * Packet::ext_pkt will be used instead. */
672  uint8_t pkt_data[];
674 
675 static inline bool PacketIsIPv4(const Packet *p);
676 static inline bool PacketIsIPv6(const Packet *p);
677 
678 /** highest mtu of the interfaces we monitor */
679 #define DEFAULT_MTU 1500
680 #define MINIMUM_MTU 68 /**< ipv4 minimum: rfc791 */
681 
682 #define DEFAULT_PACKET_SIZE (DEFAULT_MTU + ETHERNET_HEADER_LEN)
683 /* storage: maximum ip packet size + link header */
684 #define MAX_PAYLOAD_SIZE (IPV6_HEADER_LEN + 65536 + 28)
685 extern uint32_t default_packet_size;
686 #define SIZE_OF_PACKET (default_packet_size + sizeof(Packet))
687 
688 static inline bool PacketIsIPv4(const Packet *p)
689 {
690  return p->l3.type == PACKET_L3_IPV4;
691 }
692 
693 static inline const IPV4Hdr *PacketGetIPv4(const Packet *p)
694 {
695  DEBUG_VALIDATE_BUG_ON(!PacketIsIPv4(p));
696  return p->l3.hdrs.ip4h;
697 }
698 
699 static inline IPV4Hdr *PacketSetIPV4(Packet *p, const uint8_t *buf)
700 {
702  p->l3.type = PACKET_L3_IPV4;
703  p->l3.hdrs.ip4h = (IPV4Hdr *)buf;
704  return p->l3.hdrs.ip4h;
705 }
706 
707 /* Retrieve proto regardless of IP version */
708 static inline uint8_t PacketGetIPProto(const Packet *p)
709 {
710  if (p->proto != 0) {
711  return p->proto;
712  }
713  if (PacketIsIPv4(p)) {
714  const IPV4Hdr *hdr = PacketGetIPv4(p);
715  return IPV4_GET_RAW_IPPROTO(hdr);
716  } else if (PacketIsIPv6(p)) {
717  return IPV6_GET_L4PROTO(p);
718  }
719  return 0;
720 }
721 
722 static inline uint8_t PacketGetIPv4IPProto(const Packet *p)
723 {
724  if (PacketGetIPv4(p)) {
725  const IPV4Hdr *hdr = PacketGetIPv4(p);
726  return IPV4_GET_RAW_IPPROTO(hdr);
727  }
728  return 0;
729 }
730 
731 static inline const IPV6Hdr *PacketGetIPv6(const Packet *p)
732 {
733  DEBUG_VALIDATE_BUG_ON(!PacketIsIPv6(p));
734  return p->l3.hdrs.ip6h;
735 }
736 
737 static inline IPV6Hdr *PacketSetIPV6(Packet *p, const uint8_t *buf)
738 {
740  p->l3.type = PACKET_L3_IPV6;
741  p->l3.hdrs.ip6h = (IPV6Hdr *)buf;
742  return p->l3.hdrs.ip6h;
743 }
744 
745 static inline bool PacketIsIPv6(const Packet *p)
746 {
747  return p->l3.type == PACKET_L3_IPV6;
748 }
749 
750 static inline void PacketClearL2(Packet *p)
751 {
752  memset(&p->l2, 0, sizeof(p->l2));
753 }
754 
755 /* Can be called multiple times, e.g. for DCE */
756 static inline EthernetHdr *PacketSetEthernet(Packet *p, const uint8_t *buf)
757 {
760  p->l2.hdrs.ethh = (EthernetHdr *)buf;
761  return p->l2.hdrs.ethh;
762 }
763 
764 static inline const EthernetHdr *PacketGetEthernet(const Packet *p)
765 {
767  return p->l2.hdrs.ethh;
768 }
769 
770 static inline bool PacketIsEthernet(const Packet *p)
771 {
772  return p->l2.type == PACKET_L2_ETHERNET;
773 }
774 
775 static inline void PacketClearL3(Packet *p)
776 {
777  memset(&p->l3, 0, sizeof(p->l3));
778 }
779 
780 static inline void PacketClearL4(Packet *p)
781 {
782  memset(&p->l4, 0, sizeof(p->l4));
783 }
784 
785 static inline TCPHdr *PacketSetTCP(Packet *p, const uint8_t *buf)
786 {
788  p->l4.type = PACKET_L4_TCP;
789  p->l4.hdrs.tcph = (TCPHdr *)buf;
790  return p->l4.hdrs.tcph;
791 }
792 
793 static inline const TCPHdr *PacketGetTCP(const Packet *p)
794 {
796  return p->l4.hdrs.tcph;
797 }
798 
799 static inline bool PacketIsTCP(const Packet *p)
800 {
801  return p->l4.type == PACKET_L4_TCP;
802 }
803 
804 static inline UDPHdr *PacketSetUDP(Packet *p, const uint8_t *buf)
805 {
807  p->l4.type = PACKET_L4_UDP;
808  p->l4.hdrs.udph = (UDPHdr *)buf;
809  return p->l4.hdrs.udph;
810 }
811 
812 static inline const UDPHdr *PacketGetUDP(const Packet *p)
813 {
815  return p->l4.hdrs.udph;
816 }
817 
818 static inline bool PacketIsUDP(const Packet *p)
819 {
820  return p->l4.type == PACKET_L4_UDP;
821 }
822 
823 static inline ICMPV4Hdr *PacketSetICMPv4(Packet *p, const uint8_t *buf)
824 {
826  p->l4.type = PACKET_L4_ICMPV4;
827  p->l4.hdrs.icmpv4h = (ICMPV4Hdr *)buf;
828  return p->l4.hdrs.icmpv4h;
829 }
830 
831 static inline const ICMPV4Hdr *PacketGetICMPv4(const Packet *p)
832 {
834  return p->l4.hdrs.icmpv4h;
835 }
836 
837 static inline bool PacketIsICMPv4(const Packet *p)
838 {
839  return p->l4.type == PACKET_L4_ICMPV4;
840 }
841 
842 static inline const IPV4Hdr *PacketGetICMPv4EmbIPv4(const Packet *p)
843 {
844  const uint8_t *start = (const uint8_t *)PacketGetICMPv4(p);
845  const uint8_t *ip = start + p->l4.vars.icmpv4.emb_ip4h_offset;
846  return (const IPV4Hdr *)ip;
847 }
848 
849 static inline ICMPV6Hdr *PacketSetICMPv6(Packet *p, const uint8_t *buf)
850 {
852  p->l4.type = PACKET_L4_ICMPV6;
853  p->l4.hdrs.icmpv6h = (ICMPV6Hdr *)buf;
854  return p->l4.hdrs.icmpv6h;
855 }
856 
857 static inline const ICMPV6Hdr *PacketGetICMPv6(const Packet *p)
858 {
860  return p->l4.hdrs.icmpv6h;
861 }
862 
863 static inline bool PacketIsICMPv6(const Packet *p)
864 {
865  return p->l4.type == PACKET_L4_ICMPV6;
866 }
867 
868 static inline SCTPHdr *PacketSetSCTP(Packet *p, const uint8_t *buf)
869 {
871  p->l4.type = PACKET_L4_SCTP;
872  p->l4.hdrs.sctph = (SCTPHdr *)buf;
873  return p->l4.hdrs.sctph;
874 }
875 
876 static inline const SCTPHdr *PacketGetSCTP(const Packet *p)
877 {
879  return p->l4.hdrs.sctph;
880 }
881 
882 static inline bool PacketIsSCTP(const Packet *p)
883 {
884  return p->l4.type == PACKET_L4_SCTP;
885 }
886 
887 static inline GREHdr *PacketSetGRE(Packet *p, const uint8_t *buf)
888 {
890  p->l4.type = PACKET_L4_GRE;
891  p->l4.hdrs.greh = (GREHdr *)buf;
892  return p->l4.hdrs.greh;
893 }
894 
895 static inline const GREHdr *PacketGetGRE(const Packet *p)
896 {
898  return p->l4.hdrs.greh;
899 }
900 
901 static inline bool PacketIsGRE(const Packet *p)
902 {
903  return p->l4.type == PACKET_L4_GRE;
904 }
905 
906 static inline ESPHdr *PacketSetESP(Packet *p, const uint8_t *buf)
907 {
909  p->l4.type = PACKET_L4_ESP;
910  p->l4.hdrs.esph = (ESPHdr *)buf;
911  return p->l4.hdrs.esph;
912 }
913 
914 static inline const ESPHdr *PacketGetESP(const Packet *p)
915 {
917  return p->l4.hdrs.esph;
918 }
919 
920 static inline bool PacketIsESP(const Packet *p)
921 {
922  return p->l4.type == PACKET_L4_ESP;
923 }
924 
925 static inline const ARPHdr *PacketGetARP(const Packet *p)
926 {
928  return p->l3.hdrs.arph;
929 }
930 
931 static inline ARPHdr *PacketSetARP(Packet *p, const uint8_t *buf)
932 {
934  p->l3.type = PACKET_L3_ARP;
935  p->l3.hdrs.arph = (ARPHdr *)buf;
936  return p->l3.hdrs.arph;
937 }
938 
939 static inline bool PacketIsARP(const Packet *p)
940 {
941  return p->l3.type == PACKET_L3_ARP;
942 }
943 
944 /** \brief Structure to hold thread specific data for all decode modules */
945 typedef struct DecodeThreadVars_
946 {
947  /** Specific context for udp protocol detection (here atm) */
949 
950  /** stats/counters */
951  uint16_t counter_pkts;
952  uint16_t counter_bytes;
957 
958  uint16_t counter_invalid;
959 
960  uint16_t counter_eth;
961  uint16_t counter_chdlc;
962  uint16_t counter_ipv4;
963  uint16_t counter_ipv6;
964  uint16_t counter_tcp;
965  uint16_t counter_tcp_syn;
967  uint16_t counter_tcp_rst;
968  uint16_t counter_udp;
969  uint16_t counter_icmpv4;
970  uint16_t counter_icmpv6;
971  uint16_t counter_arp;
973 
974  uint16_t counter_sll;
975  uint16_t counter_raw;
976  uint16_t counter_null;
977  uint16_t counter_sctp;
978  uint16_t counter_esp;
979  uint16_t counter_ppp;
980  uint16_t counter_geneve;
981  uint16_t counter_gre;
982  uint16_t counter_vlan;
985  uint16_t counter_vxlan;
986  uint16_t counter_vntag;
988  uint16_t counter_pppoe;
989  uint16_t counter_teredo;
990  uint16_t counter_mpls;
993  uint16_t counter_erspan;
994  uint16_t counter_nsh;
995 
996  /** frag stats - defrag runs in the context of the decoder. */
1007 
1010 
1024 
1029 
1031 
1032  /* thread data for flow logging api: only used at forced
1033  * flow recycle during lookups */
1035 
1037 
1038 void CaptureStatsUpdate(ThreadVars *tv, const Packet *p);
1040 
1041 #define PACKET_CLEAR_L4VARS(p) do { \
1042  memset(&(p)->l4vars, 0x00, sizeof((p)->l4vars)); \
1043  } while (0)
1044 
1045 /* if p uses extended data, free them */
1046 #define PACKET_FREE_EXTDATA(p) do { \
1047  if ((p)->ext_pkt) { \
1048  if (!((p)->flags & PKT_ZERO_COPY)) { \
1049  SCFree((p)->ext_pkt); \
1050  } \
1051  (p)->ext_pkt = NULL; \
1052  } \
1053  } while(0)
1054 
1055 #define TUNNEL_INCR_PKT_RTV_NOLOCK(p) do { \
1056  ((p)->root ? (p)->root->tunnel_rtv_cnt++ : (p)->tunnel_rtv_cnt++); \
1057  } while (0)
1058 
1059 static inline void TUNNEL_INCR_PKT_TPR(Packet *p)
1060 {
1061  Packet *rp = p->root ? p->root : p;
1063  rp->tunnel_tpr_cnt++;
1065 }
1066 
1067 #define TUNNEL_PKT_RTV(p) ((p)->root ? (p)->root->tunnel_rtv_cnt : (p)->tunnel_rtv_cnt)
1068 #define TUNNEL_PKT_TPR(p) ((p)->root ? (p)->root->tunnel_tpr_cnt : (p)->tunnel_tpr_cnt)
1070 static inline bool PacketTunnelIsVerdicted(const Packet *p)
1071 {
1072  return p->tunnel_verdicted;
1073 }
1074 static inline void PacketTunnelSetVerdicted(Packet *p)
1075 {
1076  p->tunnel_verdicted = true;
1077 }
1078 
1086  DECODE_TUNNEL_IPV6_TEREDO, /**< separate protocol for stricter error handling */
1091 };
1092 
1094  const uint8_t *pkt, uint32_t len, enum DecodeTunnelProto proto);
1095 Packet *PacketDefragPktSetup(Packet *parent, const uint8_t *pkt, uint32_t len, uint8_t proto);
1096 void PacketDefragPktSetupParent(Packet *parent);
1099 Packet *PacketGetFromAlloc(void);
1102  DecodeThreadVars *dtv, Packet *p);
1103 void PacketFree(Packet *p);
1104 void PacketFreeOrRelease(Packet *p);
1105 int PacketCallocExtPkt(Packet *p, int datalen);
1106 int PacketCopyData(Packet *p, const uint8_t *pktdata, uint32_t pktlen);
1107 int PacketSetData(Packet *p, const uint8_t *pktdata, uint32_t pktlen);
1108 int PacketCopyDataOffset(Packet *p, uint32_t offset, const uint8_t *data, uint32_t datalen);
1109 const char *PktSrcToString(enum PktSrcEnum pkt_src);
1110 void PacketBypassCallback(Packet *p);
1111 void PacketSwap(Packet *p);
1112 
1116  const DecodeThreadVars *dtv, const Packet *p);
1117 const char *PacketDropReasonToString(enum PacketDropReason r);
1118 
1119 /* decoder functions */
1120 int DecodeEthernet(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1121 int DecodeSll(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1122 int DecodePPP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1123 int DecodePPPOESession(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1124 int DecodePPPOEDiscovery(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1125 int DecodeNull(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1126 int DecodeRaw(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1127 int DecodeIPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
1128 int DecodeIPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
1129 int DecodeICMPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1130 int DecodeICMPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1131 int DecodeTCP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
1132 int DecodeUDP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
1133 int DecodeSCTP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
1134 int DecodeESP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
1135 int DecodeGRE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1136 int DecodeVLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1137 int DecodeVNTag(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1138 int DecodeIEEE8021ah(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1139 int DecodeGeneve(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1140 int DecodeVXLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1141 int DecodeMPLS(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1142 int DecodeERSPAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1143 int DecodeERSPANTypeI(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1144 int DecodeCHDLC(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1145 int DecodeTEMPLATE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1146 int DecodeNSH(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1147 int DecodeARP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
1148 
1149 #ifdef UNITTESTS
1150 void DecodeIPV6FragHeader(Packet *p, const uint8_t *pkt,
1151  uint16_t hdrextlen, uint16_t plen,
1152  uint16_t prev_hdrextlen);
1153 #endif
1154 
1155 void AddressDebugPrint(Address *);
1156 
1158  const uint8_t *pkt, uint32_t len);
1159 void DecodeGlobalConfig(void);
1160 void PacketAlertGetMaxConfig(void);
1161 void DecodeUnregisterCounters(void);
1162 
1163 #define ENGINE_SET_EVENT(p, e) do { \
1164  SCLogDebug("p %p event %d", (p), e); \
1165  if ((p)->events.cnt < PACKET_ENGINE_EVENT_MAX) { \
1166  (p)->events.events[(p)->events.cnt] = e; \
1167  (p)->events.cnt++; \
1168  } \
1169 } while(0)
1170 
1171 #define ENGINE_SET_INVALID_EVENT(p, e) do { \
1172  p->flags |= PKT_IS_INVALID; \
1173  ENGINE_SET_EVENT(p, e); \
1174 } while(0)
1175 
1176 
1177 
1178 #define ENGINE_ISSET_EVENT(p, e) ({ \
1179  int r = 0; \
1180  uint8_t u; \
1181  for (u = 0; u < (p)->events.cnt; u++) { \
1182  if ((p)->events.events[u] == (e)) { \
1183  r = 1; \
1184  break; \
1185  } \
1186  } \
1187  r; \
1188 })
1189 
1190 #ifndef IPPROTO_IPIP
1191 #define IPPROTO_IPIP 4
1192 #endif
1193 
1194 /* older libcs don't contain a def for IPPROTO_DCCP
1195  * inside of <netinet/in.h>
1196  * if it isn't defined let's define it here.
1197  */
1198 #ifndef IPPROTO_DCCP
1199 #define IPPROTO_DCCP 33
1200 #endif
1201 
1202 /* older libcs don't contain a def for IPPROTO_SCTP
1203  * inside of <netinet/in.h>
1204  * if it isn't defined let's define it here.
1205  */
1206 #ifndef IPPROTO_SCTP
1207 #define IPPROTO_SCTP 132
1208 #endif
1209 
1210 #ifndef IPPROTO_MH
1211 #define IPPROTO_MH 135
1212 #endif
1213 
1214 /* Host Identity Protocol (rfc 5201) */
1215 #ifndef IPPROTO_HIP
1216 #define IPPROTO_HIP 139
1217 #endif
1218 
1219 #ifndef IPPROTO_SHIM6
1220 #define IPPROTO_SHIM6 140
1221 #endif
1222 
1223 /* pcap provides this, but we don't want to depend on libpcap */
1224 #ifndef DLT_EN10MB
1225 #define DLT_EN10MB 1
1226 #endif
1227 
1228 #ifndef DLT_C_HDLC
1229 #define DLT_C_HDLC 104
1230 #endif
1231 
1232 /* taken from pcap's bpf.h */
1233 #ifndef DLT_RAW
1234 #ifdef __OpenBSD__
1235 #define DLT_RAW 14 /* raw IP */
1236 #else
1237 #define DLT_RAW 12 /* raw IP */
1238 #endif
1239 #endif
1240 
1241 #ifndef DLT_NULL
1242 #define DLT_NULL 0
1243 #endif
1244 
1245 /** libpcap shows us the way to linktype codes
1246  * \todo we need more & maybe put them in a separate file? */
1247 #define LINKTYPE_NULL DLT_NULL
1248 #define LINKTYPE_ETHERNET DLT_EN10MB
1249 #define LINKTYPE_LINUX_SLL 113
1250 #define LINKTYPE_PPP 9
1251 #define LINKTYPE_RAW DLT_RAW
1252 /* http://www.tcpdump.org/linktypes.html defines DLT_RAW as 101, yet others don't.
1253  * Libpcap on at least OpenBSD returns 101 as datalink type for RAW pcaps though. */
1254 #define LINKTYPE_RAW2 101
1255 #define LINKTYPE_IPV4 228
1256 #define LINKTYPE_IPV6 229
1257 #define LINKTYPE_GRE_OVER_IP 778
1258 #define LINKTYPE_CISCO_HDLC DLT_C_HDLC
1259 #define PPP_OVER_GRE 11
1260 #define VLAN_OVER_GRE 13
1262 /* Packet Flags */
1263 
1264 /** Flag to indicate that packet header or contents should not be inspected */
1265 #define PKT_NOPACKET_INSPECTION BIT_U32(0)
1266 /** Packet has a PPP_VJ_UCOMP header */
1267 #define PKT_PPP_VJ_UCOMP BIT_U32(1)
1269 /** Flag to indicate that packet contents should not be inspected */
1270 #define PKT_NOPAYLOAD_INSPECTION BIT_U32(2)
1271 // vacancy
1272 
1273 /** Packet has matched a tag */
1274 #define PKT_HAS_TAG BIT_U32(4)
1275 /** Packet payload was added to reassembled stream */
1276 #define PKT_STREAM_ADD BIT_U32(5)
1277 /** Packet is part of established stream */
1278 #define PKT_STREAM_EST BIT_U32(6)
1279 /** Stream is in eof state */
1280 #define PKT_STREAM_EOF BIT_U32(7)
1281 #define PKT_HAS_FLOW BIT_U32(8)
1282 /** Pseudo packet to end the stream */
1283 #define PKT_PSEUDO_STREAM_END BIT_U32(9)
1284 /** Packet is modified by the stream engine, we need to recalc the csum and \
1285  reinject/replace */
1286 #define PKT_STREAM_MODIFIED BIT_U32(10)
1288 // vacancy
1289 
1290 /** Exclude packet from pcap logging as it's part of a stream that has reassembly \
1291  depth reached. */
1292 #define PKT_STREAM_NOPCAPLOG BIT_U32(12)
1294 // vacancy 2x
1295 
1296 /** Packet checksum is not computed (TX packet for example) */
1297 #define PKT_IGNORE_CHECKSUM BIT_U32(15)
1298 /** Packet comes from zero copy (ext_pkt must not be freed) */
1299 #define PKT_ZERO_COPY BIT_U32(16)
1301 #define PKT_HOST_SRC_LOOKED_UP BIT_U32(17)
1302 #define PKT_HOST_DST_LOOKED_UP BIT_U32(18)
1304 /** Packet is a fragment */
1305 #define PKT_IS_FRAGMENT BIT_U32(19)
1306 #define PKT_IS_INVALID BIT_U32(20)
1307 #define PKT_PROFILE BIT_U32(21)
1309 /** indication by decoder that it feels the packet should be handled by
1310  * flow engine: Packet::flow_hash will be set */
1311 #define PKT_WANTS_FLOW BIT_U32(22)
1313 /** protocol detection done */
1314 #define PKT_PROTO_DETECT_TS_DONE BIT_U32(23)
1315 #define PKT_PROTO_DETECT_TC_DONE BIT_U32(24)
1317 #define PKT_REBUILT_FRAGMENT \
1318  BIT_U32(25) /**< Packet is rebuilt from \
1319  * fragments. */
1320 #define PKT_DETECT_HAS_STREAMDATA \
1321  BIT_U32(26) /**< Set by Detect() if raw stream data is available. */
1323 #define PKT_PSEUDO_DETECTLOG_FLUSH BIT_U32(27) /**< Detect/log flush for protocol upgrade */
1325 /** Packet is part of stream in known bad condition (loss, wrong thread),
1326  * so flag it for not setting stream events */
1327 #define PKT_STREAM_NO_EVENTS BIT_U32(28)
1329 /** We had no alert on flow before this packet */
1330 #define PKT_FIRST_ALERTS BIT_U32(29)
1331 #define PKT_FIRST_TAG BIT_U32(30)
1333 /** \brief return 1 if the packet is a pseudo packet */
1334 #define PKT_IS_PSEUDOPKT(p) \
1335  ((p)->flags & (PKT_PSEUDO_STREAM_END|PKT_PSEUDO_DETECTLOG_FLUSH))
1336 
1337 #define PKT_SET_SRC(p, src_val) ((p)->pkt_src = src_val)
1339 #define PKT_DEFAULT_MAX_DECODED_LAYERS 16
1340 extern uint8_t decoder_max_layers;
1341 
1342 static inline bool PacketIncreaseCheckLayers(Packet *p)
1343 {
1344  p->nb_decoded_layers++;
1347  return false;
1348  }
1349  return true;
1350 }
1351 
1352 /** \brief Set the No payload inspection Flag for the packet.
1353  *
1354  * \param p Packet to set the flag in
1355  */
1356 static inline void DecodeSetNoPayloadInspectionFlag(Packet *p)
1357 {
1359 }
1360 
1361 /** \brief Set the No packet inspection Flag for the packet.
1362  *
1363  * \param p Packet to set the flag in
1364  */
1365 static inline void DecodeSetNoPacketInspectionFlag(Packet *p)
1366 {
1368 }
1369 
1370 static inline bool PacketIsTunnelRoot(const Packet *p)
1371 {
1372  return (p->ttype == PacketTunnelRoot);
1373 }
1374 
1375 static inline bool PacketIsTunnelChild(const Packet *p)
1376 {
1377  return (p->ttype == PacketTunnelChild);
1378 }
1379 
1380 static inline bool PacketIsTunnel(const Packet *p)
1381 {
1382  return (p->ttype != PacketTunnelNone);
1383 }
1384 
1385 static inline bool PacketIsNotTunnel(const Packet *p)
1386 {
1387  return (p->ttype == PacketTunnelNone);
1388 }
1389 
1390 static inline bool VerdictTunnelPacketInternal(const Packet *p)
1391 {
1392  const uint16_t outstanding = TUNNEL_PKT_TPR(p) - TUNNEL_PKT_RTV(p);
1393  SCLogDebug("tunnel: outstanding %u", outstanding);
1394 
1395  /* if there are packets outstanding, we won't verdict this one */
1396  if (PacketIsTunnelRoot(p) && !PacketTunnelIsVerdicted(p) && !outstanding) {
1397  SCLogDebug("root %p: verdict", p);
1398  return true;
1399 
1400  } else if (PacketIsTunnelChild(p) && outstanding == 1 && p->root &&
1401  PacketTunnelIsVerdicted(p->root)) {
1402  SCLogDebug("tunnel %p: verdict", p);
1403  return true;
1404 
1405  } else {
1406  return false;
1407  }
1408 }
1409 
1410 /** \brief return true if *this* packet needs to trigger a verdict.
1411  *
1412  * If we have the root packet, and we have none outstanding,
1413  * we can verdict now.
1414  *
1415  * If we have a upper layer packet, it's the only one and root
1416  * is already processed, we can verdict now.
1417  *
1418  * Otherwise, a future packet will issue the verdict.
1419  */
1420 static inline bool VerdictTunnelPacket(Packet *p)
1421 {
1422  bool verdict;
1424  SCSpinLock(lock);
1425  verdict = VerdictTunnelPacketInternal(p);
1426  SCSpinUnlock(lock);
1427  return verdict;
1428 }
1429 
1430 static inline void DecodeLinkLayer(ThreadVars *tv, DecodeThreadVars *dtv,
1431  const int datalink, Packet *p, const uint8_t *data, const uint32_t len)
1432 {
1433  /* call the decoder */
1434  switch (datalink) {
1435  case LINKTYPE_ETHERNET:
1436  DecodeEthernet(tv, dtv, p, data, len);
1437  break;
1438  case LINKTYPE_LINUX_SLL:
1439  DecodeSll(tv, dtv, p, data, len);
1440  break;
1441  case LINKTYPE_PPP:
1442  DecodePPP(tv, dtv, p, data, len);
1443  break;
1444  case LINKTYPE_RAW:
1445  case LINKTYPE_GRE_OVER_IP:
1446  DecodeRaw(tv, dtv, p, data, len);
1447  break;
1448  case LINKTYPE_NULL:
1449  DecodeNull(tv, dtv, p, data, len);
1450  break;
1451  case LINKTYPE_CISCO_HDLC:
1452  DecodeCHDLC(tv, dtv, p, data, len);
1453  break;
1454  default:
1455  SCLogError("datalink type "
1456  "%" PRId32 " not yet supported",
1457  datalink);
1458  break;
1459  }
1460 }
1461 
1462 /** \brief decode network layer
1463  * \retval bool true if successful, false if unknown */
1464 static inline bool DecodeNetworkLayer(ThreadVars *tv, DecodeThreadVars *dtv,
1465  const uint16_t proto, Packet *p, const uint8_t *data, const uint32_t len)
1466 {
1467  switch (proto) {
1468  case ETHERNET_TYPE_IP: {
1469  uint16_t ip_len = (len < USHRT_MAX) ? (uint16_t)len : (uint16_t)USHRT_MAX;
1470  DecodeIPV4(tv, dtv, p, data, ip_len);
1471  break;
1472  }
1473  case ETHERNET_TYPE_IPV6: {
1474  uint16_t ip_len = (len < USHRT_MAX) ? (uint16_t)len : (uint16_t)USHRT_MAX;
1475  DecodeIPV6(tv, dtv, p, data, ip_len);
1476  break;
1477  }
1479  DecodePPPOESession(tv, dtv, p, data, len);
1480  break;
1482  DecodePPPOEDiscovery(tv, dtv, p, data, len);
1483  break;
1484  case ETHERNET_TYPE_VLAN:
1485  case ETHERNET_TYPE_8021AD:
1487  if (p->vlan_idx > VLAN_MAX_LAYER_IDX) {
1489  } else {
1490  DecodeVLAN(tv, dtv, p, data, len);
1491  }
1492  break;
1493  case ETHERNET_TYPE_8021AH:
1494  DecodeIEEE8021ah(tv, dtv, p, data, len);
1495  break;
1496  case ETHERNET_TYPE_ARP:
1497  DecodeARP(tv, dtv, p, data, len);
1498  break;
1501  DecodeMPLS(tv, dtv, p, data, len);
1502  break;
1503  case ETHERNET_TYPE_DCE:
1506  } else {
1507  // DCE layer is ethernet + 2 bytes, followed by another ethernet
1508  DecodeEthernet(tv, dtv, p, data + 2, len - 2);
1509  }
1510  break;
1511  case ETHERNET_TYPE_VNTAG:
1512  DecodeVNTag(tv, dtv, p, data, len);
1513  break;
1514  case ETHERNET_TYPE_NSH:
1515  DecodeNSH(tv, dtv, p, data, len);
1516  break;
1517  default:
1518  SCLogDebug("unknown ether type: %" PRIx16 "", proto);
1520  return false;
1521  }
1522  return true;
1523 }
1524 
1525 #endif /* SURICATA_DECODE_H */
PacketL4::csum_set
bool csum_set
Definition: decode.h:447
PACKET_L4_GRE
@ PACKET_L4_GRE
Definition: decode.h:441
suricata-plugin.h
ENGINE_SET_EVENT
#define ENGINE_SET_EVENT(p, e)
Definition: decode.h:1163
DecodeThreadVars_::counter_flow_get_used_eval_busy
uint16_t counter_flow_get_used_eval_busy
Definition: decode.h:1022
PKT_DROP_REASON_DEFRAG_MEMCAP
@ PKT_DROP_REASON_DEFRAG_MEMCAP
Definition: decode.h:370
DCE_PKT_TOO_SMALL
@ DCE_PKT_TOO_SMALL
Definition: decode-events.h:207
PKT_DROP_REASON_DEFRAG_ERROR
@ PKT_DROP_REASON_DEFRAG_ERROR
Definition: decode.h:369
decode-ethernet.h
decode-tcp.h
PacketL3::vars
union PacketL3::@27 vars
DecodeThreadVars_::counter_defrag_ipv4_reassembled
uint16_t counter_defrag_ipv4_reassembled
Definition: decode.h:998
Packet_::proto
uint8_t proto
Definition: decode.h:504
spin_lock_cnt
thread_local uint64_t spin_lock_cnt
PKT_DROP_REASON_RULES_THRESHOLD
@ PKT_DROP_REASON_RULES_THRESHOLD
Definition: decode.h:376
DecodeIPV6
int DecodeIPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-ipv6.c:560
DecodeERSPAN
int DecodeERSPAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
ERSPAN Type II.
Definition: decode-erspan.c:76
PacketL3::ip6
struct PacketL3::@27::@28 ip6
DecodeGeneve
int DecodeGeneve(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-geneve.c:185
source-nflog.h
DecodeThreadVars_::counter_ethertype_unknown
uint16_t counter_ethertype_unknown
Definition: decode.h:972
decode-mpls.h
DecodeThreadVars_::counter_flow_udp
uint16_t counter_flow_udp
Definition: decode.h:1015
len
uint8_t len
Definition: app-layer-dnp3.h:2
DecodeThreadVars_::counter_bytes
uint16_t counter_bytes
Definition: decode.h:952
DECODE_TUNNEL_IPV6
@ DECODE_TUNNEL_IPV6
Definition: decode.h:1085
source-pcap.h
PktProfilingData_::ticks_end
uint64_t ticks_end
Definition: decode.h:332
PacketAlert_::s
const struct Signature_ * s
Definition: decode.h:252
DecodeThreadVars_::counter_eth
uint16_t counter_eth
Definition: decode.h:960
IPV4Vars_
Definition: decode-ipv4.h:130
DecodeThreadVars_::counter_flow_active
uint16_t counter_flow_active
Definition: decode.h:1013
StatsIncr
void StatsIncr(ThreadVars *tv, uint16_t id)
Increments the local counter.
Definition: counters.c:166
VLAN_HEADER_TOO_MANY_LAYERS
@ VLAN_HEADER_TOO_MANY_LAYERS
Definition: decode-events.h:147
CHECKSUM_VALIDATION_OFFLOAD
@ CHECKSUM_VALIDATION_OFFLOAD
Definition: decode.h:51
offset
uint64_t offset
Definition: util-streaming-buffer.h:0
NapatechPacketVars_
Definition: util-napatech.h:30
Packet_::code
uint8_t code
Definition: decode.h:493
PacketFreeOrRelease
void PacketFreeOrRelease(Packet *p)
Return a packet to where it was allocated.
Definition: decode.c:250
IPV4_GET_RAW_IPPROTO
#define IPV4_GET_RAW_IPPROTO(ip4h)
Definition: decode-ipv4.h:103
PacketL4Types
PacketL4Types
Definition: decode.h:434
DECODE_EVENT_MAX
@ DECODE_EVENT_MAX
Definition: decode-events.h:310
PLUGIN_VAR_SIZE
#define PLUGIN_VAR_SIZE
Definition: suricata-plugin.h:30
DecodeThreadVars_::counter_flow_icmp4
uint16_t counter_flow_icmp4
Definition: decode.h:1016
DecodeThreadVars_::counter_vxlan
uint16_t counter_vxlan
Definition: decode.h:985
DecodeThreadVars_::counter_max_pkt_size
uint16_t counter_max_pkt_size
Definition: decode.h:954
PacketCopyData
int PacketCopyData(Packet *p, const uint8_t *pktdata, uint32_t pktlen)
Copy data to Packet payload and set packet length.
Definition: decode.c:351
PacketBypassCallback
void PacketBypassCallback(Packet *p)
Definition: decode.c:504
DecodeSCTP
int DecodeSCTP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-sctp.c:62
ICMPV4Vars_
Definition: decode-icmpv4.h:183
DecodeThreadVars_::counter_avg_pkt_size
uint16_t counter_avg_pkt_size
Definition: decode.h:953
PktProfiling_
Per pkt stats storage.
Definition: decode.h:352
Address_::address_un_data16
uint16_t address_un_data16[8]
Definition: decode.h:121
DecodePPP
int DecodePPP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-ppp.c:174
DecodeARP
int DecodeARP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-arp.c:29
Address_::address_un_in6
struct in6_addr address_un_in6
Definition: decode.h:123
unlikely
#define unlikely(expr)
Definition: util-optimize.h:35
Packet_::persistent
struct Packet_::@35 persistent
PacketL3
Definition: decode.h:414
PKT_DROP_REASON_STREAM_MEMCAP
@ PKT_DROP_REASON_STREAM_MEMCAP
Definition: decode.h:378
PktProfilingTmmData_
Per TMM stats storage.
Definition: decode.h:311
IPV6ExtHdrs_
Definition: decode-ipv6.h:150
PktPool_
Definition: tmqh-packetpool.h:43
Packet_::host_src
struct Host_ * host_src
Definition: decode.h:605
PKT_DROP_REASON_FLOW_MEMCAP
@ PKT_DROP_REASON_FLOW_MEMCAP
Definition: decode.h:371
PACKET_L2_ETHERNET
@ PACKET_L2_ETHERNET
Definition: decode.h:397
CaptureStatsSetup
void CaptureStatsSetup(ThreadVars *tv)
Definition: decode.c:983
PacketDropReasonToString
const char * PacketDropReasonToString(enum PacketDropReason r)
Definition: decode.c:872
PacketEngineEvents_::events
uint8_t events[PACKET_ENGINE_EVENT_MAX]
Definition: decode.h:294
DECODE_TUNNEL_IPV6_TEREDO
@ DECODE_TUNNEL_IPV6_TEREDO
Definition: decode.h:1086
PacketL4::csum
uint16_t csum
Definition: decode.h:448
SCLogDebug
#define SCLogDebug(...)
Definition: util-debug.h:269
PACKET_L4_UNKNOWN
@ PACKET_L4_UNKNOWN
Definition: decode.h:435
PKT_SRC_SHUTDOWN_FLUSH
@ PKT_SRC_SHUTDOWN_FLUSH
Definition: decode.h:67
DecodeEthernet
int DecodeEthernet(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-ethernet.c:42
rwr_lock_cnt
thread_local uint64_t rwr_lock_cnt
Packet_::pcap_cnt
uint64_t pcap_cnt
Definition: decode.h:609
PktProfiling_::ticks_end
uint64_t ticks_end
Definition: decode.h:354
TCPVars_
Definition: decode-tcp.h:162
AddressDebugPrint
void AddressDebugPrint(Address *)
Debug print function for printing addresses.
Definition: decode.c:756
PKT_SRC_DECODER_IPV4
@ PKT_SRC_DECODER_IPV4
Definition: decode.h:57
DecodeThreadVars_::counter_flow_spare_sync_avg
uint16_t counter_flow_spare_sync_avg
Definition: decode.h:1028
PacketDefragPktSetup
Packet * PacketDefragPktSetup(Packet *parent, const uint8_t *pkt, uint32_t len, uint8_t proto)
Setup a pseudo packet (reassembled frags)
Definition: decode.c:447
PacketQueue_
simple fifo queue for packets with mutex and cond Calling the mutex or triggering the cond is respons...
Definition: packet-queue.h:49
Packet_::payload
uint8_t * payload
Definition: decode.h:588
PacketAlerts_::cnt
uint16_t cnt
Definition: decode.h:274
ETHERNET_TYPE_IPV6
#define ETHERNET_TYPE_IPV6
Definition: decode-ethernet.h:39
PKT_SRC_CAPTURE_TIMEOUT
@ PKT_SRC_CAPTURE_TIMEOUT
Definition: decode.h:65
DecodeUDP
int DecodeUDP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-udp.c:75
Packet_::flags
uint32_t flags
Definition: decode.h:519
decode-udp.h
Packet_::action
uint8_t action
Definition: decode.h:592
PacketAlertCreate
PacketAlert * PacketAlertCreate(void)
Initialize PacketAlerts with dynamic alerts array size.
Definition: decode.c:140
PktProfilingDetectData
struct PktProfilingDetectData_ PktProfilingDetectData
DecodeThreadVars_::counter_vntag
uint16_t counter_vntag
Definition: decode.h:986
PacketL4::L4Hdrs::udph
UDPHdr * udph
Definition: decode.h:451
Packet_::vlan_idx
uint8_t vlan_idx
Definition: decode.h:510
Flow_
Flow data structure.
Definition: flow.h:360
Packet_::tunnel_verdicted
bool tunnel_verdicted
Definition: decode.h:633
DecodeThreadVars_::counter_flow_get_used_eval
uint16_t counter_flow_get_used_eval
Definition: decode.h:1020
Address_::address
union Address_::@26 address
PacketL4::L4Hdrs::greh
GREHdr * greh
Definition: decode.h:455
LiveDevice_
Definition: util-device.h:50
PROF_DETECT_SIZE
@ PROF_DETECT_SIZE
Definition: suricata-common.h:456
PktVar_::next
struct PktVar_ * next
Definition: decode.h:299
DecoderFunc
int(* DecoderFunc)(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p, const uint8_t *pkt, uint32_t len)
Definition: decode.h:1157
PktProfilingTmmData_::ticks_end
uint64_t ticks_end
Definition: decode.h:313
Packet_::ipfw_v
IPFWPacketVars ipfw_v
Definition: decode.h:541
Packet_::pool
struct PktPool_ * pool
Definition: decode.h:653
DecodeThreadVars_::counter_tcp_synack
uint16_t counter_tcp_synack
Definition: decode.h:966
CHECKSUM_VALIDATION_RXONLY
@ CHECKSUM_VALIDATION_RXONLY
Definition: decode.h:49
PktProfiling_::app
PktProfilingAppData app[]
Definition: decode.h:361
PACKET_L3_IPV4
@ PACKET_L3_IPV4
Definition: decode.h:409
PKT_DROP_REASON_MAX
@ PKT_DROP_REASON_MAX
Definition: decode.h:383
PKT_DROP_REASON_STREAM_REASSEMBLY
@ PKT_DROP_REASON_STREAM_REASSEMBLY
Definition: decode.h:380
DECODE_TUNNEL_ERSPANI
@ DECODE_TUNNEL_ERSPANI
Definition: decode.h:1082
PacketAlerts_::alerts
PacketAlert * alerts
Definition: decode.h:277
LINKTYPE_LINUX_SLL
#define LINKTYPE_LINUX_SLL
Definition: decode.h:1249
PktProfilingTmmData
struct PktProfilingTmmData_ PktProfilingTmmData
Per TMM stats storage.
DecodeThreadVars_::counter_teredo
uint16_t counter_teredo
Definition: decode.h:989
DecodeThreadVars_::counter_erspan
uint16_t counter_erspan
Definition: decode.h:993
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:309
DecodeVXLAN
int DecodeVXLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-vxlan.c:122
AppLayerDecoderEventsResetEvents
void AppLayerDecoderEventsResetEvents(AppLayerDecoderEvents *events)
Definition: app-layer-events.c:124
util-exception-policy-types.h
PacketL3::hdrs
union PacketL3::Hdrs hdrs
DecodeThreadVars_::counter_raw
uint16_t counter_raw
Definition: decode.h:975
DecodeThreadVars
struct DecodeThreadVars_ DecodeThreadVars
Structure to hold thread specific data for all decode modules.
PacketL2::type
enum PacketL2Types type
Definition: decode.h:401
IPV6_GET_L4PROTO
#define IPV6_GET_L4PROTO(p)
Definition: decode-ipv6.h:75
SCSpinLock
#define SCSpinLock
Definition: threads-debug.h:235
PacketAlerts_::drop
PacketAlert drop
Definition: decode.h:280
DecodeVNTag
int DecodeVNTag(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-vntag.c:52
Address_
Definition: decode.h:117
PacketL3::Hdrs
Definition: decode.h:419
CHECKSUM_VALIDATION_DISABLE
@ CHECKSUM_VALIDATION_DISABLE
Definition: decode.h:46
DecodeThreadVars_::counter_arp
uint16_t counter_arp
Definition: decode.h:971
DecodeThreadVars_::counter_flow_tcp
uint16_t counter_flow_tcp
Definition: decode.h:1014
PacketL3::Hdrs::arph
ARPHdr * arph
Definition: decode.h:422
CHECKSUM_VALIDATION_KERNEL
@ CHECKSUM_VALIDATION_KERNEL
Definition: decode.h:50
PacketDecodeFinalize
void PacketDecodeFinalize(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p)
Finalize decoding of a packet.
Definition: decode.c:206
Packet_::icmp_s
struct Packet_::@29::@36 icmp_s
Address_::address_un_data32
uint32_t address_un_data32[4]
Definition: decode.h:120
proto
uint8_t proto
Definition: decode-template.h:0
PKT_NOPAYLOAD_INSPECTION
#define PKT_NOPAYLOAD_INSPECTION
Definition: decode.h:1270
PacketAlertGetMaxConfig
void PacketAlertGetMaxConfig(void)
Definition: decode.c:1016
Packet_::icmp_d
struct Packet_::@31::@37 icmp_d
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:177
PktProfilingDetectData_::ticks_end
uint64_t ticks_end
Definition: decode.h:337
decoder_max_layers
uint8_t decoder_max_layers
Definition: decode.c:81
DecodeThreadVars_::counter_tcp_active_sessions
uint16_t counter_tcp_active_sessions
Definition: decode.h:1011
PacketAlert
struct PacketAlert_ PacketAlert
Packet_::host_dst
struct Host_ * host_dst
Definition: decode.h:606
PktProfilingLoggerData
struct PktProfilingLoggerData_ PktProfilingLoggerData
Packet_::flowflags
uint8_t flowflags
Definition: decode.h:513
PacketL3::Hdrs::ip4h
IPV4Hdr * ip4h
Definition: decode.h:420
Packet_::BypassPacketsFlow
int(* BypassPacketsFlow)(struct Packet_ *)
Definition: decode.h:577
PacketDropReason
PacketDropReason
Definition: decode.h:366
DecodeThreadVars_::counter_max_mac_addrs_src
uint16_t counter_max_mac_addrs_src
Definition: decode.h:955
PktProfiling_::ticks_start
uint64_t ticks_start
Definition: decode.h:353
DecodeUnregisterCounters
void DecodeUnregisterCounters(void)
Definition: decode.c:576
rww_lock_contention
thread_local uint64_t rww_lock_contention
PACKET_L2_UNKNOWN
@ PACKET_L2_UNKNOWN
Definition: decode.h:396
Packet_::payload_len
uint16_t payload_len
Definition: decode.h:589
DecodeThreadVars_::counter_flow_get_used
uint16_t counter_flow_get_used
Definition: decode.h:1019
Packet_::alerts
PacketAlerts alerts
Definition: decode.h:603
Packet_::tunnel_tpr_cnt
uint16_t tunnel_tpr_cnt
Definition: decode.h:645
PacketTunnelChild
@ PacketTunnelChild
Definition: decode.h:389
AppLayerDecoderEvents_
Data structure to store app layer decoder events.
Definition: app-layer-events.h:35
Packet_::app_layer_events
AppLayerDecoderEvents * app_layer_events
Definition: decode.h:615
Packet_::events
PacketEngineEvents events
Definition: decode.h:613
PacketAlertFree
void PacketAlertFree(PacketAlert *pa)
Definition: decode.c:148
PacketL4::L4Hdrs
Definition: decode.h:449
PacketL2::L2Hdrs
Definition: decode.h:402
ETHERNET_TYPE_8021QINQ
#define ETHERNET_TYPE_8021QINQ
Definition: decode-ethernet.h:47
PacketTunnelType
PacketTunnelType
Definition: decode.h:386
DecodeThreadVars_::counter_flow_spare_sync_empty
uint16_t counter_flow_spare_sync_empty
Definition: decode.h:1026
PktProfilingAppData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:342
ICMPV4Vars_::emb_ip4h_offset
uint16_t emb_ip4h_offset
Definition: decode-icmpv4.h:184
DecodeThreadVars_::counter_flow_tcp_reuse
uint16_t counter_flow_tcp_reuse
Definition: decode.h:1018
DecodeRaw
int DecodeRaw(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-raw.c:42
PacketAlert_::tx_id
uint64_t tx_id
Definition: decode.h:253
rwr_lock_contention
thread_local uint64_t rwr_lock_contention
LINKTYPE_NULL
#define LINKTYPE_NULL
Definition: decode.h:1247
DECODE_TUNNEL_NSH
@ DECODE_TUNNEL_NSH
Definition: decode.h:1088
DecodeThreadVars_::counter_flow_total
uint16_t counter_flow_total
Definition: decode.h:1012
PacketAlert_::action
uint8_t action
Definition: decode.h:250
PacketL2Types
PacketL2Types
Definition: decode.h:395
PacketL3::Hdrs::ip6h
IPV6Hdr * ip6h
Definition: decode.h:421
Packet_::datalink
int datalink
Definition: decode.h:622
Packet_::profile
PktProfiling * profile
Definition: decode.h:656
PACKET_L3_UNKNOWN
@ PACKET_L3_UNKNOWN
Definition: decode.h:408
spin_lock_wait_ticks
thread_local uint64_t spin_lock_wait_ticks
CHECKSUM_VALIDATION_ENABLE
@ CHECKSUM_VALIDATION_ENABLE
Definition: decode.h:47
lock
HRLOCK_TYPE lock
Definition: host.h:0
decode-gre.h
DecodeRegisterPerfCounters
void DecodeRegisterPerfCounters(DecodeThreadVars *, ThreadVars *)
Definition: decode.c:602
DecodeThreadVars_::counter_flow_spare_sync
uint16_t counter_flow_spare_sync
Definition: decode.h:1025
DECODE_TUNNEL_ERSPANII
@ DECODE_TUNNEL_ERSPANII
Definition: decode.h:1081
DecodeThreadVars_::counter_defrag_tracker_timeout
uint16_t counter_defrag_tracker_timeout
Definition: decode.h:1005
CHECKSUM_VALIDATION_AUTO
@ CHECKSUM_VALIDATION_AUTO
Definition: decode.h:48
DecodeThreadVars_::counter_ipv6inipv6
uint16_t counter_ipv6inipv6
Definition: decode.h:992
Packet_::pktlen
uint32_t pktlen
Definition: decode.h:597
decode-ipv6.h
PACKET_L4_TCP
@ PACKET_L4_TCP
Definition: decode.h:436
PACKET_L4_SCTP
@ PACKET_L4_SCTP
Definition: decode.h:440
TUNNEL_PKT_TPR
#define TUNNEL_PKT_TPR(p)
Definition: decode.h:1068
util-debug.h
DecodeThreadVars_::counter_flow_get_used_failed
uint16_t counter_flow_get_used_failed
Definition: decode.h:1023
PKT_SRC_WIRE
@ PKT_SRC_WIRE
Definition: decode.h:55
source-nfq.h
Packet_::pktvar
PktVar * pktvar
Definition: decode.h:580
ExceptionPolicyCounters_
Definition: util-exception-policy-types.h:43
DPDKPacketVars_
per packet DPDK vars
Definition: source-dpdk.h:92
DecodeThreadVars_::counter_icmpv4
uint16_t counter_icmpv4
Definition: decode.h:969
DecodeThreadVars_::counter_ppp
uint16_t counter_ppp
Definition: decode.h:979
ETHERNET_TYPE_8021AD
#define ETHERNET_TYPE_8021AD
Definition: decode-ethernet.h:43
PacketAlert_::num
SigIntId num
Definition: decode.h:249
PacketL4::L4Vars::icmpv4
ICMPV4Vars icmpv4
Definition: decode.h:460
Packet_::tunnel_lock
SCSpinlock tunnel_lock
Definition: decode.h:666
Packet_::ts
SCTime_t ts
Definition: decode.h:530
PKT_DROP_REASON_APPLAYER_ERROR
@ PKT_DROP_REASON_APPLAYER_ERROR
Definition: decode.h:373
PacketSwap
void PacketSwap(Packet *p)
switch direction of a packet
Definition: decode.c:551
DecodeMPLS
int DecodeMPLS(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-mpls.c:49
DecodeThreadVars_::counter_tcp_rst
uint16_t counter_tcp_rst
Definition: decode.h:967
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:57
PktSrcEnum
PktSrcEnum
Definition: decode.h:54
PKT_DROP_REASON_NOT_SET
@ PKT_DROP_REASON_NOT_SET
Definition: decode.h:367
flow-worker.h
PktVar_::value
uint8_t * value
Definition: decode.h:305
PktProfilingAppData
struct PktProfilingAppData_ PktProfilingAppData
DecodeTunnelProto
DecodeTunnelProto
Definition: decode.h:1079
Packet_::prev
struct Packet_ * prev
Definition: decode.h:619
Packet
struct Packet_ Packet
decode-ppp.h
Packet_::pcap_v
PcapPacketVars pcap_v
Definition: decode.h:570
CaptureStatsUpdate
void CaptureStatsUpdate(ThreadVars *tv, const Packet *p)
Definition: decode.c:963
PKT_SRC_DECODER_TEREDO
@ PKT_SRC_DECODER_TEREDO
Definition: decode.h:59
DecodeTEMPLATE
int DecodeTEMPLATE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Function to decode TEMPLATE packets.
Definition: decode-template.c:51
PacketL4::L4Hdrs::esph
ESPHdr * esph
Definition: decode.h:456
Packet_::tunnel_rtv_cnt
uint16_t tunnel_rtv_cnt
Definition: decode.h:643
DecodeVLAN
int DecodeVLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-vlan.c:54
DecodeESP
int DecodeESP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Function to decode IPSEC-ESP packets.
Definition: decode-esp.c:64
rww_lock_cnt
thread_local uint64_t rww_lock_cnt
DecodeNSH
int DecodeNSH(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Function to decode NSH packets.
Definition: decode-nsh.c:46
ThreadVars_
Per thread variable structure.
Definition: threadvars.h:57
mutex_lock_contention
thread_local uint64_t mutex_lock_contention
spin_lock_contention
thread_local uint64_t spin_lock_contention
PktProfilingData_
Definition: decode.h:330
PacketL4::L4Vars::tcp
TCPVars tcp
Definition: decode.h:459
DECODE_TUNNEL_PPP
@ DECODE_TUNNEL_PPP
Definition: decode.h:1087
Packet_::sp
Port sp
Definition: decode.h:489
PktProfiling_::logger
PktProfilingLoggerData logger[LOGGER_SIZE]
Definition: decode.h:359
PacketFree
void PacketFree(Packet *p)
Return a malloced packet.
Definition: decode.c:193
SCSpinUnlock
#define SCSpinUnlock
Definition: threads-debug.h:237
PktSrcToString
const char * PktSrcToString(enum PktSrcEnum pkt_src)
Definition: decode.c:824
PktVar
struct PktVar_ PktVar
DecodeThreadVars_::counter_vlan_qinq
uint16_t counter_vlan_qinq
Definition: decode.h:983
IPV6Vars_
get the highest proto/next header field we know
Definition: decode-ipv6.h:84
LINKTYPE_GRE_OVER_IP
#define LINKTYPE_GRE_OVER_IP
Definition: decode.h:1257
LINKTYPE_PPP
#define LINKTYPE_PPP
Definition: decode.h:1250
DecodeThreadVars_::counter_defrag_tracker_hard_reuse
uint16_t counter_defrag_tracker_hard_reuse
Definition: decode.h:1004
PktProfilingDetectData_
Definition: decode.h:335
PktVar_::key
uint8_t * key
Definition: decode.h:304
decode-icmpv6.h
PacketAlerts_::discarded
uint16_t discarded
Definition: decode.h:275
source-pfring.h
DecodeSll
int DecodeSll(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-sll.c:41
PKT_DROP_REASON_RULES
@ PKT_DROP_REASON_RULES
Definition: decode.h:375
PacketL4::L4Hdrs::icmpv4h
ICMPV4Hdr * icmpv4h
Definition: decode.h:452
LOGGER_SIZE
@ LOGGER_SIZE
Definition: suricata-common.h:494
PacketCallocExtPkt
int PacketCallocExtPkt(Packet *p, int datalen)
Definition: decode.c:283
Address
struct Address_ Address
AppLayerDecoderEventsFreeEvents
void AppLayerDecoderEventsFreeEvents(AppLayerDecoderEvents **events)
Definition: app-layer-events.c:133
ETHERNET_TYPE_MPLS_UNICAST
#define ETHERNET_TYPE_MPLS_UNICAST
Definition: decode-mpls.h:29
PACKET_L3_ARP
@ PACKET_L3_ARP
Definition: decode.h:411
PKT_SRC_STREAM_TCP_DETECTLOG_FLUSH
@ PKT_SRC_STREAM_TCP_DETECTLOG_FLUSH
Definition: decode.h:62
DECODE_TUNNEL_VLAN
@ DECODE_TUNNEL_VLAN
Definition: decode.h:1083
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:58
PACKET_L4_UDP
@ PACKET_L4_UDP
Definition: decode.h:437
IPV6Hdr_
Definition: decode-ipv6.h:32
Packet_
Definition: decode.h:482
DecodeThreadVars_::counter_nsh
uint16_t counter_nsh
Definition: decode.h:994
DECODE_TUNNEL_IPV4
@ DECODE_TUNNEL_IPV4
Definition: decode.h:1084
DecodeThreadVars_::app_tctx
AppLayerThreadCtx * app_tctx
Definition: decode.h:948
decode-icmpv4.h
ICMPV4Hdr_
Definition: decode-icmpv4.h:165
Packet_::l4
struct PacketL4 l4
Definition: decode.h:584
DecodeThreadVars_::counter_sll
uint16_t counter_sll
Definition: decode.h:974
source-ipfw.h
Address_::address_un_data8
uint8_t address_un_data8[16]
Definition: decode.h:122
TMM_SIZE
@ TMM_SIZE
Definition: tm-threads-common.h:79
PacketEngineEvents_
Definition: decode.h:292
source-netmap.h
PACKET_L4_ESP
@ PACKET_L4_ESP
Definition: decode.h:442
PacketL3::ip4
IPV4Vars ip4
Definition: decode.h:426
PKT_DROP_REASON_STREAM_ERROR
@ PKT_DROP_REASON_STREAM_ERROR
Definition: decode.h:377
Port
uint16_t Port
Definition: decode.h:223
DecodeThreadVars_::counter_sctp
uint16_t counter_sctp
Definition: decode.h:977
SCTime_t
Definition: util-time.h:40
Packet_::livedev
struct LiveDevice_ * livedev
Definition: decode.h:601
source-windivert.h
DecodeThreadVars_::counter_invalid
uint16_t counter_invalid
Definition: decode.h:958
ETHERNET_TYPE_VNTAG
#define ETHERNET_TYPE_VNTAG
Definition: decode-ethernet.h:51
DecodeThreadVars_::counter_ieee8021ah
uint16_t counter_ieee8021ah
Definition: decode.h:987
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:270
DecodeThreadVars_::counter_ipv4inipv6
uint16_t counter_ipv4inipv6
Definition: decode.h:991
ETHERNET_TYPE_NSH
#define ETHERNET_TYPE_NSH
Definition: decode-ethernet.h:50
PacketL4::L4Hdrs::sctph
SCTPHdr * sctph
Definition: decode.h:454
PacketL2::L2Hdrs::ethh
EthernetHdr * ethh
Definition: decode.h:403
DecodeThreadVars_::counter_vlan
uint16_t counter_vlan
Definition: decode.h:982
PacketL2
Definition: decode.h:400
DECODE_TUNNEL_ETHERNET
@ DECODE_TUNNEL_ETHERNET
Definition: decode.h:1080
DecodeThreadVars_::counter_tcp
uint16_t counter_tcp
Definition: decode.h:964
ETHERNET_TYPE_DCE
#define ETHERNET_TYPE_DCE
Definition: decode-ethernet.h:49
AFXDPPacketVars_
per packet AF_XDP vars
Definition: source-af-xdp.h:54
DecodeThreadVars_::counter_pkts
uint16_t counter_pkts
Definition: decode.h:951
rwr_lock_wait_ticks
thread_local uint64_t rwr_lock_wait_ticks
PacketTunnelNone
@ PacketTunnelNone
Definition: decode.h:387
decode-events.h
PktProfilingData_::ticks_start
uint64_t ticks_start
Definition: decode.h:331
DecodeNull
int DecodeNull(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-null.c:51
dtv
DecodeThreadVars * dtv
Definition: fuzz_decodepcapfile.c:33
DecodeIPV4
int DecodeIPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-ipv4.c:520
DecodeThreadVars_::counter_defrag_memcap_eps
ExceptionPolicyCounters counter_defrag_memcap_eps
Definition: decode.h:1006
PacketAlert_::frame_id
int64_t frame_id
Definition: decode.h:254
PacketL3::csum_set
bool csum_set
Definition: decode.h:417
Packet_::ntpv
NapatechPacketVars ntpv
Definition: decode.h:561
decode-vlan.h
IPV4Hdr_
Definition: decode-ipv4.h:72
default_packet_size
uint32_t default_packet_size
Definition: decode.c:77
LINKTYPE_RAW
#define LINKTYPE_RAW
Definition: decode.h:1251
Packet_::l2
struct PacketL2 l2
Definition: decode.h:582
Packet_::nb_decoded_layers
uint8_t nb_decoded_layers
Definition: decode.h:627
PacketAlert_::flags
uint8_t flags
Definition: decode.h:251
PKT_SRC_DECODER_GENEVE
@ PKT_SRC_DECODER_GENEVE
Definition: decode.h:66
PacketL3::eh
IPV6ExtHdrs eh
Definition: decode.h:429
decode-ipv4.h
DecodeThreadVars_::counter_chdlc
uint16_t counter_chdlc
Definition: decode.h:961
PacketL3::type
enum PacketL3Types type
Definition: decode.h:415
Packet_::nfq_v
NFQPacketVars nfq_v
Definition: decode.h:538
ICMPV6Hdr_
Definition: decode-icmpv6.h:129
PktProfiling_::detect
PktProfilingDetectData detect[PROF_DETECT_SIZE]
Definition: decode.h:358
Packet_::ReleasePacket
void(* ReleasePacket)(struct Packet_ *)
Definition: decode.h:574
Packet_::tenant_id
uint32_t tenant_id
Definition: decode.h:648
Packet_::flow
struct Flow_ * flow
Definition: decode.h:521
DecodeGRE
int DecodeGRE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Function to decode GRE packets.
Definition: decode-gre.c:47
ICMPV6Vars_
Definition: decode-icmpv6.h:146
PKT_DROP_REASON_INNER_PACKET
@ PKT_DROP_REASON_INNER_PACKET
Definition: decode.h:382
PktProfiling
struct PktProfiling_ PktProfiling
Per pkt stats storage.
PacketL4::type
enum PacketL4Types type
Definition: decode.h:446
DecodeThreadVarsFree
void DecodeThreadVarsFree(ThreadVars *, DecodeThreadVars *)
Definition: decode.c:791
IPFWPacketVars_
Definition: source-ipfw.h:32
source-dpdk.h
PktProfilingLoggerData_::ticks_end
uint64_t ticks_end
Definition: decode.h:347
PacketL4::L4Hdrs::icmpv6h
ICMPV6Hdr * icmpv6h
Definition: decode.h:453
DecodeThreadVars_::counter_flow_spare_sync_incomplete
uint16_t counter_flow_spare_sync_incomplete
Definition: decode.h:1027
PKT_DROP_REASON_APPLAYER_MEMCAP
@ PKT_DROP_REASON_APPLAYER_MEMCAP
Definition: decode.h:374
DecodeGlobalConfig
void DecodeGlobalConfig(void)
Definition: decode.c:999
ChecksumValidationMode
ChecksumValidationMode
Definition: decode.h:45
suricata-common.h
PKT_SRC_FFR
@ PKT_SRC_FFR
Definition: decode.h:61
DecodeIPV6FragHeader
void DecodeIPV6FragHeader(Packet *p, const uint8_t *pkt, uint16_t hdrextlen, uint16_t plen, uint16_t prev_hdrextlen)
Definition: decode-ipv6.c:92
ETHERNET_TYPE_8021AH
#define ETHERNET_TYPE_8021AH
Definition: decode-ethernet.h:44
decode-arp.h
NFQPacketVars_
Definition: source-nfq.h:40
PacketL4::L4Vars
Definition: decode.h:458
DecodeThreadVars_::counter_flow_icmp6
uint16_t counter_flow_icmp6
Definition: decode.h:1017
DecodeThreadVars_::counter_ipv6
uint16_t counter_ipv6
Definition: decode.h:963
PROFILE_FLOWWORKER_SIZE
@ PROFILE_FLOWWORKER_SIZE
Definition: flow-worker.h:29
source-af-xdp.h
ETHERNET_DCE_HEADER_LEN
#define ETHERNET_DCE_HEADER_LEN
Definition: decode-ethernet.h:30
DecodeThreadVars_::counter_gre
uint16_t counter_gre
Definition: decode.h:981
PacketL3Types
PacketL3Types
Definition: decode.h:407
DecodeThreadVars_::counter_esp
uint16_t counter_esp
Definition: decode.h:978
Packet_::ext_pkt
uint8_t * ext_pkt
Definition: decode.h:598
PacketAlerts
struct PacketAlerts_ PacketAlerts
DecodeICMPV4
int DecodeICMPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Main ICMPv4 decoding function.
Definition: decode-icmpv4.c:143
Packet_::app_update_direction
uint8_t app_update_direction
Definition: decode.h:516
decode-esp.h
PKT_DROP_REASON_NFQ_ERROR
@ PKT_DROP_REASON_NFQ_ERROR
Definition: decode.h:381
DecodeThreadVars_::counter_defrag_no_frags
uint16_t counter_defrag_no_frags
Definition: decode.h:1002
DecodeThreadVars_::counter_defrag_ipv6_reassembled
uint16_t counter_defrag_ipv6_reassembled
Definition: decode.h:1000
DecodeThreadVars_::counter_udp
uint16_t counter_udp
Definition: decode.h:968
Packet_::ttype
enum PacketTunnelType ttype
Definition: decode.h:528
PacketUpdateEngineEventCounters
void PacketUpdateEngineEventCounters(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p)
Definition: decode.c:213
VLAN_MAX_LAYERS
#define VLAN_MAX_LAYERS
Definition: decode-vlan.h:51
DecodeThreadVars_::counter_flow_memcap_eps
ExceptionPolicyCounters counter_flow_memcap_eps
Definition: decode.h:1009
UDPHdr_
Definition: decode-udp.h:42
decode-sctp.h
PKT_SRC_DEFRAG
@ PKT_SRC_DEFRAG
Definition: decode.h:60
tv
ThreadVars * tv
Definition: fuzz_decodepcapfile.c:32
PfringPacketVars_
per packet Pfring vars
Definition: source-pfring.h:60
NetmapPacketVars_
Definition: source-netmap.h:71
DecodeThreadVars_::counter_ipv4
uint16_t counter_ipv4
Definition: decode.h:962
PACKET_L4_ICMPV6
@ PACKET_L4_ICMPV6
Definition: decode.h:439
threadvars.h
util-validate.h
PacketGetFromAlloc
Packet * PacketGetFromAlloc(void)
Get a malloced packet.
Definition: decode.c:232
TUNNEL_PKT_RTV
#define TUNNEL_PKT_RTV(p)
Definition: decode.h:1067
source-af-packet.h
PKT_SRC_DECODER_VXLAN
@ PKT_SRC_DECODER_VXLAN
Definition: decode.h:63
mutex_lock_wait_ticks
thread_local uint64_t mutex_lock_wait_ticks
Packet_::next
struct Packet_ * next
Definition: decode.h:618
Packet_::flow_hash
uint32_t flow_hash
Definition: decode.h:525
PacketL4::L4Hdrs::tcph
TCPHdr * tcph
Definition: decode.h:450
PACKET_L4_ICMPV4
@ PACKET_L4_ICMPV4
Definition: decode.h:438
Packet_::l3
struct PacketL3 l3
Definition: decode.h:583
Packet_::root
struct Packet_ * root
Definition: decode.h:636
DecodeThreadVars_::counter_pppoe
uint16_t counter_pppoe
Definition: decode.h:988
PacketAlerts_::suppressed
uint16_t suppressed
Definition: decode.h:276
DecodeThreadVars_::counter_mpls
uint16_t counter_mpls
Definition: decode.h:990
SCLogError
#define SCLogError(...)
Macro used to log ERROR messages.
Definition: util-debug.h:261
PKT_SRC_DETECT_RELOAD_FLUSH
@ PKT_SRC_DETECT_RELOAD_FLUSH
Definition: decode.h:64
PktProfilingData
struct PktProfilingData_ PktProfilingData
Packet_::pkt_src
uint8_t pkt_src
Definition: decode.h:594
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:946
PACKET_ENGINE_EVENT_MAX
#define PACKET_ENGINE_EVENT_MAX
Definition: decode.h:289
PACKET_L3_IPV6
@ PACKET_L3_IPV6
Definition: decode.h:410
Packet_::recursion_level
uint8_t recursion_level
Definition: decode.h:507
PktProfilingLoggerData_
Definition: decode.h:345
PktProfiling_::tmm
PktProfilingTmmData tmm[TMM_SIZE]
Definition: decode.h:356
Signature_
Signature container.
Definition: detect.h:601
DecodeThreadVars_::output_flow_thread_data
void * output_flow_thread_data
Definition: decode.h:1034
DecodeThreadVars_::counter_geneve
uint16_t counter_geneve
Definition: decode.h:980
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:956
DecodeThreadVarsAlloc
DecodeThreadVars * DecodeThreadVarsAlloc(ThreadVars *)
Alloc and setup DecodeThreadVars.
Definition: decode.c:773
DecodeThreadVars_::counter_defrag_max_hit
uint16_t counter_defrag_max_hit
Definition: decode.h:1001
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:811
PacketL4::hdrs
union PacketL4::L4Hdrs hdrs
DecodeThreadVars_::counter_vlan_qinqinq
uint16_t counter_vlan_qinqinq
Definition: decode.h:984
SCSpinlock
#define SCSpinlock
Definition: threads-debug.h:234
VLAN_MAX_LAYER_IDX
#define VLAN_MAX_LAYER_IDX
Definition: decode-vlan.h:52
LINKTYPE_CISCO_HDLC
#define LINKTYPE_CISCO_HDLC
Definition: decode.h:1258
PktVar_::value_len
uint16_t value_len
Definition: decode.h:303
PacketL2::hdrs
union PacketL2::L2Hdrs hdrs
app-layer-protos.h
DecodeThreadVars_::counter_null
uint16_t counter_null
Definition: decode.h:976
DecodeThreadVars_::counter_icmpv6
uint16_t counter_icmpv6
Definition: decode.h:970
PcapPacketVars_
Definition: source-pcap.h:36
PacketL3::csum
uint16_t csum
Definition: decode.h:418
Packet_::drop_reason
uint8_t drop_reason
Definition: decode.h:630
Address_::family
char family
Definition: decode.h:118
Packet_::dst
Address dst
Definition: decode.h:487
PKT_SRC_DECODER_GRE
@ PKT_SRC_DECODER_GRE
Definition: decode.h:56
ENGINE_SET_INVALID_EVENT
#define ENGINE_SET_INVALID_EVENT(p, e)
Definition: decode.h:1171
PktProfilingTmmData_::ticks_start
uint64_t ticks_start
Definition: decode.h:312
PacketAlert_
Definition: decode.h:248
PktProfilingLoggerData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:348
DecodeThreadVars_::counter_flow_memcap
uint16_t counter_flow_memcap
Definition: decode.h:1008
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:999
PKT_NOPACKET_INSPECTION
#define PKT_NOPACKET_INSPECTION
Definition: decode.h:1265
PktVar_
Definition: decode.h:297
PacketTunnelRoot
@ PacketTunnelRoot
Definition: decode.h:388
AFPPacketVars_
per packet AF_PACKET vars
Definition: source-af-packet.h:144
Packet_::pkt_data
uint8_t pkt_data[]
Definition: decode.h:672
PacketEngineEvents
struct PacketEngineEvents_ PacketEngineEvents
packet_alert_max
uint16_t packet_alert_max
Definition: decode.c:82
Packet_::vlan_id
uint16_t vlan_id[VLAN_MAX_LAYERS]
Definition: decode.h:509
DecodeIEEE8021ah
int DecodeIEEE8021ah(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
PktProfilingDetectData_::ticks_start
uint64_t ticks_start
Definition: decode.h:336
DECODE_TUNNEL_ARP
@ DECODE_TUNNEL_ARP
Definition: decode.h:1089
PacketL4
Definition: decode.h:445
PacketDefragPktSetupParent
void PacketDefragPktSetupParent(Packet *parent)
inform defrag "parent" that a pseudo packet is now associated to it.
Definition: decode.c:486
DecodeThreadVars_::counter_tcp_syn
uint16_t counter_tcp_syn
Definition: decode.h:965
Packet_::plugin_v
uint8_t plugin_v[PLUGIN_VAR_SIZE]
Definition: decode.h:567
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:367
PktProfiling_::flowworker
PktProfilingData flowworker[PROFILE_FLOWWORKER_SIZE]
Definition: decode.h:357
mutex_lock_cnt
thread_local uint64_t mutex_lock_cnt
NFLOGPacketVars_
Definition: source-nflog.h:55
PacketL4::L4Vars::icmpv6
ICMPV6Vars icmpv6
Definition: decode.h:461
PKT_DROP_REASON_STREAM_MIDSTREAM
@ PKT_DROP_REASON_STREAM_MIDSTREAM
Definition: decode.h:379
SigIntId
#define SigIntId
Definition: suricata-common.h:315
PacketAlerts_
Definition: decode.h:273
Packet_::dp
Port dp
Definition: decode.h:497
PktVar_::key_len
uint16_t key_len
Definition: decode.h:302
PktProfilingAppData_
Definition: decode.h:341
GENERIC_TOO_MANY_LAYERS
@ GENERIC_TOO_MANY_LAYERS
Definition: decode-events.h:221
Host_
Definition: host.h:58
DecodeThreadVars_::counter_flow_get_used_eval_reject
uint16_t counter_flow_get_used_eval_reject
Definition: decode.h:1021
PktProfiling_::proto_detect
uint64_t proto_detect
Definition: decode.h:360
DecodePPPOESession
int DecodePPPOESession(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Main decoding function for PPPOE Session packets.
Definition: decode-pppoe.c:124
ETHERNET_TYPE_MPLS_MULTICAST
#define ETHERNET_TYPE_MPLS_MULTICAST
Definition: decode-mpls.h:30
Packet_::type
uint8_t type
Definition: decode.h:492
ETHERNET_TYPE_IP
#define ETHERNET_TYPE_IP
Definition: decode-ethernet.h:34
AppLayerDecoderEvents_::events
uint8_t * events
Definition: app-layer-events.h:37
DECODE_TUNNEL_UNSET
@ DECODE_TUNNEL_UNSET
Definition: decode.h:1090
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:267
DEBUG_VALIDATE_BUG_ON
#define DEBUG_VALIDATE_BUG_ON(exp)
Definition: util-validate.h:102
PacketL3::v
IPV6Vars v
Definition: decode.h:428
PktProfilingLoggerData_::ticks_start
uint64_t ticks_start
Definition: decode.h:346
PKT_DROP_REASON_FLOW_DROP
@ PKT_DROP_REASON_FLOW_DROP
Definition: decode.h:372
TCPHdr_
Definition: decode-tcp.h:149
Packet_::src
Address src
Definition: decode.h:486
PacketL4::vars
union PacketL4::L4Vars vars
DecodeERSPANTypeI
int DecodeERSPANTypeI(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
ERSPAN Type I.
Definition: decode-erspan.c:65
DecodeCHDLC
int DecodeCHDLC(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-chdlc.c:42
DecodeUpdatePacketCounters
void DecodeUpdatePacketCounters(ThreadVars *tv, const DecodeThreadVars *dtv, const Packet *p)
Definition: decode.c:739
DecodeThreadVars_::counter_engine_events
uint16_t counter_engine_events[DECODE_EVENT_MAX]
Definition: decode.h:1030
DecodeThreadVars_::counter_defrag_tracker_soft_reuse
uint16_t counter_defrag_tracker_soft_reuse
Definition: decode.h:1003
LINKTYPE_ETHERNET
#define LINKTYPE_ETHERNET
Definition: decode.h:1248
PktProfilingDetectData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:338
PktVar_::id
uint32_t id
Definition: decode.h:298
PKT_DROP_REASON_DECODE_ERROR
@ PKT_DROP_REASON_DECODE_ERROR
Definition: decode.h:368
DecodeThreadVars_::counter_defrag_ipv4_fragments
uint16_t counter_defrag_ipv4_fragments
Definition: decode.h:997
PacketEngineEvents_::cnt
uint8_t cnt
Definition: decode.h:293
DecodePPPOEDiscovery
int DecodePPPOEDiscovery(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Main decoding function for PPPOE Discovery packets.
Definition: decode-pppoe.c:50