suricata
decode.h
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1 /* Copyright (C) 2007-2022 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 #ifdef PROFILING
36 #include "flow-worker.h"
37 #include "app-layer-protos.h"
38 #endif
39 
40 #ifdef HAVE_NAPATECH
41 #include "util-napatech.h"
42 #endif /* HAVE_NAPATECH */
43 
44 typedef enum {
52 
53 enum PktSrcEnum {
66 };
67 
68 #include "source-nflog.h"
69 #include "source-nfq.h"
70 #include "source-ipfw.h"
71 #include "source-pcap.h"
72 #include "source-af-packet.h"
73 #include "source-netmap.h"
74 #include "source-windivert.h"
75 #ifdef HAVE_DPDK
76 #include "source-dpdk.h"
77 #endif
78 #ifdef HAVE_PF_RING_FLOW_OFFLOAD
79 #include "source-pfring.h"
80 #endif
81 #ifdef HAVE_AF_XDP
82 #include "source-af-xdp.h"
83 #endif
84 
85 #include "decode-ethernet.h"
86 #include "decode-gre.h"
87 #include "decode-ppp.h"
88 #include "decode-pppoe.h"
89 #include "decode-ipv4.h"
90 #include "decode-ipv6.h"
91 #include "decode-icmpv4.h"
92 #include "decode-icmpv6.h"
93 #include "decode-tcp.h"
94 #include "decode-udp.h"
95 #include "decode-sctp.h"
96 #include "decode-esp.h"
97 #include "decode-vlan.h"
98 #include "decode-mpls.h"
99 
100 
101 /* forward declarations */
102 struct DetectionEngineThreadCtx_;
104 
105 struct PktPool_;
106 
107 /* declare these here as they are called from the
108  * PACKET_RECYCLE and PACKET_CLEANUP macro's. */
112 
113 /* Address */
114 typedef struct Address_ {
115  char family;
116  union {
117  uint32_t address_un_data32[4]; /* type-specific field */
118  uint16_t address_un_data16[8]; /* type-specific field */
119  uint8_t address_un_data8[16]; /* type-specific field */
120  struct in6_addr address_un_in6;
123 
124 #define addr_data32 address.address_un_data32
125 #define addr_data16 address.address_un_data16
126 #define addr_data8 address.address_un_data8
127 #define addr_in6addr address.address_un_in6
128 
129 #define COPY_ADDRESS(a, b) do { \
130  (b)->family = (a)->family; \
131  (b)->addr_data32[0] = (a)->addr_data32[0]; \
132  (b)->addr_data32[1] = (a)->addr_data32[1]; \
133  (b)->addr_data32[2] = (a)->addr_data32[2]; \
134  (b)->addr_data32[3] = (a)->addr_data32[3]; \
135  } while (0)
136 
137 /* Set the IPv4 addresses into the Addrs of the Packet.
138  * Make sure p->ip4h is initialized and validated.
139  *
140  * We set the rest of the struct to 0 so we can
141  * prevent using memset. */
142 #define SET_IPV4_SRC_ADDR(p, a) do { \
143  (a)->family = AF_INET; \
144  (a)->addr_data32[0] = (uint32_t)(p)->ip4h->s_ip_src.s_addr; \
145  (a)->addr_data32[1] = 0; \
146  (a)->addr_data32[2] = 0; \
147  (a)->addr_data32[3] = 0; \
148  } while (0)
149 
150 #define SET_IPV4_DST_ADDR(p, a) do { \
151  (a)->family = AF_INET; \
152  (a)->addr_data32[0] = (uint32_t)(p)->ip4h->s_ip_dst.s_addr; \
153  (a)->addr_data32[1] = 0; \
154  (a)->addr_data32[2] = 0; \
155  (a)->addr_data32[3] = 0; \
156  } while (0)
157 
158 /* Set the IPv6 addresses into the Addrs of the Packet.
159  * Make sure p->ip6h is initialized and validated. */
160 #define SET_IPV6_SRC_ADDR(p, a) do { \
161  (a)->family = AF_INET6; \
162  (a)->addr_data32[0] = (p)->ip6h->s_ip6_src[0]; \
163  (a)->addr_data32[1] = (p)->ip6h->s_ip6_src[1]; \
164  (a)->addr_data32[2] = (p)->ip6h->s_ip6_src[2]; \
165  (a)->addr_data32[3] = (p)->ip6h->s_ip6_src[3]; \
166  } while (0)
167 
168 #define SET_IPV6_DST_ADDR(p, a) do { \
169  (a)->family = AF_INET6; \
170  (a)->addr_data32[0] = (p)->ip6h->s_ip6_dst[0]; \
171  (a)->addr_data32[1] = (p)->ip6h->s_ip6_dst[1]; \
172  (a)->addr_data32[2] = (p)->ip6h->s_ip6_dst[2]; \
173  (a)->addr_data32[3] = (p)->ip6h->s_ip6_dst[3]; \
174  } while (0)
175 
176 /* Set the TCP ports into the Ports of the Packet.
177  * Make sure p->tcph is initialized and validated. */
178 #define SET_TCP_SRC_PORT(pkt, prt) do { \
179  SET_PORT(TCP_GET_SRC_PORT((pkt)), *(prt)); \
180  } while (0)
181 
182 #define SET_TCP_DST_PORT(pkt, prt) do { \
183  SET_PORT(TCP_GET_DST_PORT((pkt)), *(prt)); \
184  } while (0)
185 
186 /* Set the UDP ports into the Ports of the Packet.
187  * Make sure p->udph is initialized and validated. */
188 #define SET_UDP_SRC_PORT(pkt, prt) do { \
189  SET_PORT(UDP_GET_SRC_PORT((pkt)), *(prt)); \
190  } while (0)
191 #define SET_UDP_DST_PORT(pkt, prt) do { \
192  SET_PORT(UDP_GET_DST_PORT((pkt)), *(prt)); \
193  } while (0)
194 
195 /* Set the SCTP ports into the Ports of the Packet.
196  * Make sure p->sctph is initialized and validated. */
197 #define SET_SCTP_SRC_PORT(pkt, prt) do { \
198  SET_PORT(SCTP_GET_SRC_PORT((pkt)), *(prt)); \
199  } while (0)
200 
201 #define SET_SCTP_DST_PORT(pkt, prt) do { \
202  SET_PORT(SCTP_GET_DST_PORT((pkt)), *(prt)); \
203  } while (0)
204 
205 
206 #define GET_IPV4_SRC_ADDR_U32(p) ((p)->src.addr_data32[0])
207 #define GET_IPV4_DST_ADDR_U32(p) ((p)->dst.addr_data32[0])
208 #define GET_IPV4_SRC_ADDR_PTR(p) ((p)->src.addr_data32)
209 #define GET_IPV4_DST_ADDR_PTR(p) ((p)->dst.addr_data32)
210 
211 #define GET_IPV6_SRC_IN6ADDR(p) ((p)->src.addr_in6addr)
212 #define GET_IPV6_DST_IN6ADDR(p) ((p)->dst.addr_in6addr)
213 #define GET_IPV6_SRC_ADDR(p) ((p)->src.addr_data32)
214 #define GET_IPV6_DST_ADDR(p) ((p)->dst.addr_data32)
215 #define GET_TCP_SRC_PORT(p) ((p)->sp)
216 #define GET_TCP_DST_PORT(p) ((p)->dp)
217 
218 #define GET_PKT_LEN(p) ((p)->pktlen)
219 #define GET_PKT_DATA(p) ((((p)->ext_pkt) == NULL ) ? (uint8_t *)((p) + 1) : (p)->ext_pkt)
220 #define GET_PKT_DIRECT_DATA(p) (uint8_t *)((p) + 1)
221 #define GET_PKT_DIRECT_MAX_SIZE(p) (default_packet_size)
222 
223 #define SET_PKT_LEN(p, len) do { \
224  (p)->pktlen = (len); \
225  } while (0)
226 
227 
228 /* Port is just a uint16_t */
229 typedef uint16_t Port;
230 #define SET_PORT(v, p) ((p) = (v))
231 #define COPY_PORT(a,b) ((b) = (a))
232 
233 #define CMP_ADDR(a1, a2) \
234  (((a1)->addr_data32[3] == (a2)->addr_data32[3] && \
235  (a1)->addr_data32[2] == (a2)->addr_data32[2] && \
236  (a1)->addr_data32[1] == (a2)->addr_data32[1] && \
237  (a1)->addr_data32[0] == (a2)->addr_data32[0]))
238 #define CMP_PORT(p1, p2) \
239  ((p1) == (p2))
240 
241 /*Given a packet pkt offset to the start of the ip header in a packet
242  *We determine the ip version. */
243 #define IP_GET_RAW_VER(pkt) ((((pkt)[0] & 0xf0) >> 4))
244 
245 #define PKT_IS_IPV4(p) (((p)->ip4h != NULL))
246 #define PKT_IS_IPV6(p) (((p)->ip6h != NULL))
247 #define PKT_IS_TCP(p) (((p)->tcph != NULL))
248 #define PKT_IS_UDP(p) (((p)->udph != NULL))
249 #define PKT_IS_ICMPV4(p) (((p)->icmpv4h != NULL))
250 #define PKT_IS_ICMPV6(p) (((p)->icmpv6h != NULL))
251 #define PKT_IS_TOSERVER(p) (((p)->flowflags & FLOW_PKT_TOSERVER))
252 #define PKT_IS_TOCLIENT(p) (((p)->flowflags & FLOW_PKT_TOCLIENT))
253 
254 #define IPH_IS_VALID(p) (PKT_IS_IPV4((p)) || PKT_IS_IPV6((p)))
255 
256 /* Retrieve proto regardless of IP version */
257 #define IP_GET_IPPROTO(p) \
258  (p->proto ? p->proto : \
259  (PKT_IS_IPV4((p))? IPV4_GET_IPPROTO((p)) : (PKT_IS_IPV6((p))? IPV6_GET_L4PROTO((p)) : 0)))
260 
261 /* structure to store the sids/gids/etc the detection engine
262  * found in this packet */
263 typedef struct PacketAlert_ {
264  SigIntId num; /* Internal num, used for sorting */
265  uint8_t action; /* Internal num, used for thresholding */
266  uint8_t flags;
267  const struct Signature_ *s;
268  uint64_t tx_id; /* Used for sorting */
269  int64_t frame_id;
271 
272 /* flag to indicate the rule action (drop/pass) needs to be applied to the flow */
273 #define PACKET_ALERT_FLAG_APPLY_ACTION_TO_FLOW 0x1
274 /** alert was generated based on state */
275 #define PACKET_ALERT_FLAG_STATE_MATCH 0x02
276 /** alert was generated based on stream */
277 #define PACKET_ALERT_FLAG_STREAM_MATCH 0x04
278 /** alert is in a tx, tx_id set */
279 #define PACKET_ALERT_FLAG_TX 0x08
280 /** action was changed by rate_filter */
281 #define PACKET_ALERT_RATE_FILTER_MODIFIED 0x10
282 /** alert is in a frame, frame_id set */
283 #define PACKET_ALERT_FLAG_FRAME 0x20
284 
285 extern uint16_t packet_alert_max;
286 #define PACKET_ALERT_MAX 15
287 
288 typedef struct PacketAlerts_ {
289  uint16_t cnt;
290  uint16_t discarded;
291  uint16_t suppressed;
293  /* single pa used when we're dropping,
294  * so we can log it out in the drop log. */
297 
299 
300 void PacketAlertFree(PacketAlert *pa);
301 
302 /** number of decoder events we support per packet. Power of 2 minus 1
303  * for memory layout */
304 #define PACKET_ENGINE_EVENT_MAX 15
305 
306 /** data structure to store decoder, defrag and stream events */
307 typedef struct PacketEngineEvents_ {
308  uint8_t cnt; /**< number of events */
309  uint8_t events[PACKET_ENGINE_EVENT_MAX]; /**< array of events */
311 
312 typedef struct PktVar_ {
313  uint32_t id;
314  struct PktVar_ *next; /* right now just implement this as a list,
315  * in the long run we have thing of something
316  * faster. */
317  uint16_t key_len;
318  uint16_t value_len;
319  uint8_t *key;
320  uint8_t *value;
322 
323 #ifdef PROFILING
324 
325 /** \brief Per TMM stats storage */
326 typedef struct PktProfilingTmmData_ {
327  uint64_t ticks_start;
328  uint64_t ticks_end;
329 #ifdef PROFILE_LOCKING
330  uint64_t mutex_lock_cnt;
331  uint64_t mutex_lock_wait_ticks;
332  uint64_t mutex_lock_contention;
333  uint64_t spin_lock_cnt;
334  uint64_t spin_lock_wait_ticks;
335  uint64_t spin_lock_contention;
336  uint64_t rww_lock_cnt;
337  uint64_t rww_lock_wait_ticks;
338  uint64_t rww_lock_contention;
339  uint64_t rwr_lock_cnt;
340  uint64_t rwr_lock_wait_ticks;
341  uint64_t rwr_lock_contention;
342 #endif
344 
345 typedef struct PktProfilingData_ {
346  uint64_t ticks_start;
347  uint64_t ticks_end;
349 
350 typedef struct PktProfilingDetectData_ {
351  uint64_t ticks_start;
352  uint64_t ticks_end;
353  uint64_t ticks_spent;
355 
356 typedef struct PktProfilingAppData_ {
357  uint64_t ticks_spent;
359 
360 typedef struct PktProfilingLoggerData_ {
361  uint64_t ticks_start;
362  uint64_t ticks_end;
363  uint64_t ticks_spent;
365 
367  uint64_t ticks_spent;
369 
372  uint32_t size; /**< array size */
374 
375 /** \brief Per pkt stats storage */
376 typedef struct PktProfiling_ {
377  uint64_t ticks_start;
378  uint64_t ticks_end;
379 
385  uint64_t proto_detect;
387 
388 #endif /* PROFILING */
389 
400  PKT_DROP_REASON_RULES_THRESHOLD, /**< detection_filter in action */
404  PKT_DROP_REASON_NFQ_ERROR, /**< no nfq verdict, must be error */
405  PKT_DROP_REASON_INNER_PACKET, /**< drop issued by inner (tunnel) packet */
406 };
407 
408 /* forward declaration since Packet struct definition requires this */
409 struct PacketQueue_;
410 
411 /* sizes of the members:
412  * src: 17 bytes
413  * dst: 17 bytes
414  * sp/type: 1 byte
415  * dp/code: 1 byte
416  * proto: 1 byte
417  * recurs: 1 byte
418  *
419  * sum of above: 38 bytes
420  *
421  * flow ptr: 4/8 bytes
422  * flags: 1 byte
423  * flowflags: 1 byte
424  *
425  * sum of above 44/48 bytes
426  */
427 typedef struct Packet_
428 {
429  /* Addresses, Ports and protocol
430  * these are on top so we can use
431  * the Packet as a hash key */
434  union {
436  // icmp type and code of this packet
437  struct {
438  uint8_t type;
439  uint8_t code;
441  };
442  union {
444  // icmp type and code of the expected counterpart (for flows)
445  struct {
446  uint8_t type;
447  uint8_t code;
449  };
450  uint8_t proto;
451  /* make sure we can't be attacked on when the tunneled packet
452  * has the exact same tuple as the lower levels */
454 
455  uint16_t vlan_id[2];
456  uint8_t vlan_idx;
457 
458  /* flow */
459  uint8_t flowflags;
460  /* coccinelle: Packet:flowflags:FLOW_PKT_ */
461 
462  /* Pkt Flags */
463  uint32_t flags;
464 
465  struct Flow_ *flow;
466 
467  /* raw hash value for looking up the flow, will need to modulated to the
468  * hash size still */
469  uint32_t flow_hash;
470 
472 
473  union {
474  /* nfq stuff */
475 #ifdef HAVE_NFLOG
476  NFLOGPacketVars nflog_v;
477 #endif /* HAVE_NFLOG */
478 #ifdef NFQ
480 #endif /* NFQ */
481 #ifdef IPFW
483 #endif /* IPFW */
484 #ifdef AF_PACKET
485  AFPPacketVars afp_v;
486 #endif
487 #ifdef HAVE_NETMAP
488  NetmapPacketVars netmap_v;
489 #endif
490 #ifdef HAVE_PFRING
491 #ifdef HAVE_PF_RING_FLOW_OFFLOAD
492  PfringPacketVars pfring_v;
493 #endif
494 #endif
495 #ifdef WINDIVERT
496  WinDivertPacketVars windivert_v;
497 #endif /* WINDIVERT */
498 #ifdef HAVE_DPDK
499  DPDKPacketVars dpdk_v;
500 #endif
501 #ifdef HAVE_NAPATECH
503 #endif
504 #ifdef HAVE_AF_XDP
505  AFXDPPacketVars afxdp_v;
506 #endif
507  /* A chunk of memory that a plugin can use for its packet vars. */
509 
510  /** libpcap vars: shared by Pcap Live mode and Pcap File mode */
512  };
513 
514  /** The release function for packet structure and data */
515  void (*ReleasePacket)(struct Packet_ *);
516  /** The function triggering bypass the flow in the capture method.
517  * Return 1 for success and 0 on error */
518  int (*BypassPacketsFlow)(struct Packet_ *);
519 
520  /* pkt vars */
522 
523  /* header pointers */
524  EthernetHdr *ethh;
525 
526  /* Checksum for IP packets. */
528  /* Check sum for TCP, UDP or ICMP packets */
530 
532 
534 
535  /* IPv4 and IPv6 are mutually exclusive */
536  union {
538  struct {
541  };
542  };
543  /* Can only be one of TCP, UDP, ICMP at any given time */
544  union {
549 #define tcpvars l4vars.tcpvars
550 #define icmpv4vars l4vars.icmpv4vars
551 #define icmpv6vars l4vars.icmpv6vars
552 
553  TCPHdr *tcph;
554 
555  UDPHdr *udph;
556 
557  SCTPHdr *sctph;
558 
559  ESPHdr *esph;
560 
561  ICMPV4Hdr *icmpv4h;
562 
564 
565  PPPHdr *ppph;
567  PPPOEDiscoveryHdr *pppoedh;
568 
569  GREHdr *greh;
570 
571  /* ptr to the payload of the packet
572  * with it's length. */
573  uint8_t *payload;
574  uint16_t payload_len;
575 
576  /* IPS action to take */
577  uint8_t action;
578 
579  uint8_t pkt_src;
580 
581  /* storage: set to pointer to heap and extended via allocation if necessary */
582  uint32_t pktlen;
583  uint8_t *ext_pkt;
584 
585  /* Incoming interface */
587 
589 
590  struct Host_ *host_src;
591  struct Host_ *host_dst;
592 
593  /** packet number in the pcap file, matches wireshark */
594  uint64_t pcap_cnt;
595 
596 
597  /* engine events */
599 
601 
602  /* double linked list ptrs */
603  struct Packet_ *next;
604  struct Packet_ *prev;
605 
606  /** data linktype in host order */
607  int datalink;
608 
609  /* count decoded layers of packet : too many layers
610  * cause issues with performance and stability (stack exhaustion)
611  */
613 
614  /* enum PacketDropReason::PKT_DROP_REASON_* as uint8_t for compactness */
615  uint8_t drop_reason;
616 
617  /* tunnel/encapsulation handling */
618  struct Packet_ *root; /* in case of tunnel this is a ptr
619  * to the 'real' packet, the one we
620  * need to set the verdict on --
621  * It should always point to the lowest
622  * packet in a encapsulated packet */
623 
624  /* ready to set verdict counter, only set in root */
625  uint16_t tunnel_rtv_cnt;
626  /* tunnel packet ref count */
627  uint16_t tunnel_tpr_cnt;
628 
629  /** tenant id for this packet, if any. If 0 then no tenant was assigned. */
630  uint32_t tenant_id;
631 
632  /* The Packet pool from which this packet was allocated. Used when returning
633  * the packet to its owner's stack. If NULL, then allocated with malloc.
634  */
635  struct PktPool_ *pool;
636 
637 #ifdef PROFILING
639 #endif
640  /* things in the packet that live beyond a reinit */
641  struct {
642  /** lock to protect access to:
643  * - tunnel_rtv_cnt
644  * - tunnel_tpr_cnt
645  * - nfq_v.mark
646  * - flags
647  */
651 
652 /** highest mtu of the interfaces we monitor */
653 #define DEFAULT_MTU 1500
654 #define MINIMUM_MTU 68 /**< ipv4 minimum: rfc791 */
655 
656 #define DEFAULT_PACKET_SIZE (DEFAULT_MTU + ETHERNET_HEADER_LEN)
657 /* storage: maximum ip packet size + link header */
658 #define MAX_PAYLOAD_SIZE (IPV6_HEADER_LEN + 65536 + 28)
659 extern uint32_t default_packet_size;
660 #define SIZE_OF_PACKET (default_packet_size + sizeof(Packet))
661 
662 /** \brief Structure to hold thread specific data for all decode modules */
663 typedef struct DecodeThreadVars_
664 {
665  /** Specific context for udp protocol detection (here atm) */
667 
668  /** stats/counters */
669  uint16_t counter_pkts;
670  uint16_t counter_bytes;
675 
676  uint16_t counter_invalid;
677 
678  uint16_t counter_eth;
679  uint16_t counter_chdlc;
680  uint16_t counter_ipv4;
681  uint16_t counter_ipv6;
682  uint16_t counter_tcp;
683  uint16_t counter_udp;
684  uint16_t counter_icmpv4;
685  uint16_t counter_icmpv6;
686  uint16_t counter_arp;
688 
689  uint16_t counter_sll;
690  uint16_t counter_raw;
691  uint16_t counter_null;
692  uint16_t counter_sctp;
693  uint16_t counter_esp;
694  uint16_t counter_ppp;
695  uint16_t counter_geneve;
696  uint16_t counter_gre;
697  uint16_t counter_vlan;
699  uint16_t counter_vxlan;
700  uint16_t counter_vntag;
702  uint16_t counter_pppoe;
703  uint16_t counter_teredo;
704  uint16_t counter_mpls;
707  uint16_t counter_erspan;
708  uint16_t counter_nsh;
709 
710  /** frag stats - defrag runs in the context of the decoder. */
718 
720 
734 
739 
741 
742  /* thread data for flow logging api: only used at forced
743  * flow recycle during lookups */
745 
747 
748 typedef struct CaptureStats_ {
749 
754 
756 
757 void CaptureStatsUpdate(ThreadVars *tv, CaptureStats *s, const Packet *p);
759 
760 #define PACKET_CLEAR_L4VARS(p) do { \
761  memset(&(p)->l4vars, 0x00, sizeof((p)->l4vars)); \
762  } while (0)
763 
764 /**
765  * \brief reset these to -1(indicates that the packet is fresh from the queue)
766  */
767 #define PACKET_RESET_CHECKSUMS(p) do { \
768  (p)->level3_comp_csum = -1; \
769  (p)->level4_comp_csum = -1; \
770  } while (0)
771 
772 /* if p uses extended data, free them */
773 #define PACKET_FREE_EXTDATA(p) do { \
774  if ((p)->ext_pkt) { \
775  if (!((p)->flags & PKT_ZERO_COPY)) { \
776  SCFree((p)->ext_pkt); \
777  } \
778  (p)->ext_pkt = NULL; \
779  } \
780  } while(0)
781 
782 #define TUNNEL_INCR_PKT_RTV_NOLOCK(p) do { \
783  ((p)->root ? (p)->root->tunnel_rtv_cnt++ : (p)->tunnel_rtv_cnt++); \
784  } while (0)
785 
786 static inline void TUNNEL_INCR_PKT_TPR(Packet *p)
787 {
788  Packet *rp = p->root ? p->root : p;
790  rp->tunnel_tpr_cnt++;
792 }
793 
794 #define TUNNEL_PKT_RTV(p) ((p)->root ? (p)->root->tunnel_rtv_cnt : (p)->tunnel_rtv_cnt)
795 #define TUNNEL_PKT_TPR(p) ((p)->root ? (p)->root->tunnel_tpr_cnt : (p)->tunnel_tpr_cnt)
796 
797 #define IS_TUNNEL_PKT(p) (((p)->flags & PKT_TUNNEL))
798 #define SET_TUNNEL_PKT(p) ((p)->flags |= PKT_TUNNEL)
799 #define UNSET_TUNNEL_PKT(p) ((p)->flags &= ~PKT_TUNNEL)
800 #define IS_TUNNEL_ROOT_PKT(p) (IS_TUNNEL_PKT(p) && (p)->root == NULL)
801 
802 #define IS_TUNNEL_PKT_VERDICTED(p) (((p)->flags & PKT_TUNNEL_VERDICTED))
803 #define SET_TUNNEL_PKT_VERDICTED(p) ((p)->flags |= PKT_TUNNEL_VERDICTED)
804 
812  DECODE_TUNNEL_IPV6_TEREDO, /**< separate protocol for stricter error handling */
816 };
817 
819  const uint8_t *pkt, uint32_t len, enum DecodeTunnelProto proto);
820 Packet *PacketDefragPktSetup(Packet *parent, const uint8_t *pkt, uint32_t len, uint8_t proto);
821 void PacketDefragPktSetupParent(Packet *parent);
828 void PacketFree(Packet *p);
829 void PacketFreeOrRelease(Packet *p);
830 int PacketCallocExtPkt(Packet *p, int datalen);
831 int PacketCopyData(Packet *p, const uint8_t *pktdata, uint32_t pktlen);
832 int PacketSetData(Packet *p, const uint8_t *pktdata, uint32_t pktlen);
833 int PacketCopyDataOffset(Packet *p, uint32_t offset, const uint8_t *data, uint32_t datalen);
834 const char *PktSrcToString(enum PktSrcEnum pkt_src);
836 void PacketSwap(Packet *p);
837 
841  const DecodeThreadVars *dtv, const Packet *p);
842 const char *PacketDropReasonToString(enum PacketDropReason r);
843 
844 /* decoder functions */
845 int DecodeEthernet(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
846 int DecodeSll(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
847 int DecodePPP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
848 int DecodePPPOESession(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
849 int DecodePPPOEDiscovery(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
850 int DecodeNull(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
851 int DecodeRaw(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
852 int DecodeIPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
853 int DecodeIPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
854 int DecodeICMPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
855 int DecodeICMPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
856 int DecodeTCP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
857 int DecodeUDP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
858 int DecodeSCTP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
859 int DecodeESP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
860 int DecodeGRE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
861 int DecodeVLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
862 int DecodeVNTag(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
863 int DecodeIEEE8021ah(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
864 int DecodeGeneve(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
865 int DecodeVXLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
866 int DecodeMPLS(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
867 int DecodeERSPAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
868 int DecodeERSPANTypeI(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
869 int DecodeCHDLC(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
870 int DecodeTEMPLATE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
871 int DecodeNSH(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
872 
873 #ifdef UNITTESTS
874 void DecodeIPV6FragHeader(Packet *p, const uint8_t *pkt,
875  uint16_t hdrextlen, uint16_t plen,
876  uint16_t prev_hdrextlen);
877 #endif
878 
879 void AddressDebugPrint(Address *);
880 
882  const uint8_t *pkt, uint32_t len);
883 void DecodeGlobalConfig(void);
884 void PacketAlertGetMaxConfig(void);
885 void DecodeUnregisterCounters(void);
886 
887 #define ENGINE_SET_EVENT(p, e) do { \
888  SCLogDebug("p %p event %d", (p), e); \
889  if ((p)->events.cnt < PACKET_ENGINE_EVENT_MAX) { \
890  (p)->events.events[(p)->events.cnt] = e; \
891  (p)->events.cnt++; \
892  } \
893 } while(0)
894 
895 #define ENGINE_SET_INVALID_EVENT(p, e) do { \
896  p->flags |= PKT_IS_INVALID; \
897  ENGINE_SET_EVENT(p, e); \
898 } while(0)
899 
900 
901 
902 #define ENGINE_ISSET_EVENT(p, e) ({ \
903  int r = 0; \
904  uint8_t u; \
905  for (u = 0; u < (p)->events.cnt; u++) { \
906  if ((p)->events.events[u] == (e)) { \
907  r = 1; \
908  break; \
909  } \
910  } \
911  r; \
912 })
913 
914 #ifndef IPPROTO_IPIP
915 #define IPPROTO_IPIP 4
916 #endif
917 
918 /* older libcs don't contain a def for IPPROTO_DCCP
919  * inside of <netinet/in.h>
920  * if it isn't defined let's define it here.
921  */
922 #ifndef IPPROTO_DCCP
923 #define IPPROTO_DCCP 33
924 #endif
925 
926 /* older libcs don't contain a def for IPPROTO_SCTP
927  * inside of <netinet/in.h>
928  * if it isn't defined let's define it here.
929  */
930 #ifndef IPPROTO_SCTP
931 #define IPPROTO_SCTP 132
932 #endif
933 
934 #ifndef IPPROTO_MH
935 #define IPPROTO_MH 135
936 #endif
937 
938 /* Host Identity Protocol (rfc 5201) */
939 #ifndef IPPROTO_HIP
940 #define IPPROTO_HIP 139
941 #endif
942 
943 #ifndef IPPROTO_SHIM6
944 #define IPPROTO_SHIM6 140
945 #endif
946 
947 /* pcap provides this, but we don't want to depend on libpcap */
948 #ifndef DLT_EN10MB
949 #define DLT_EN10MB 1
950 #endif
951 
952 #ifndef DLT_C_HDLC
953 #define DLT_C_HDLC 104
954 #endif
955 
956 /* taken from pcap's bpf.h */
957 #ifndef DLT_RAW
958 #ifdef __OpenBSD__
959 #define DLT_RAW 14 /* raw IP */
960 #else
961 #define DLT_RAW 12 /* raw IP */
962 #endif
963 #endif
964 
965 #ifndef DLT_NULL
966 #define DLT_NULL 0
967 #endif
968 
969 /** libpcap shows us the way to linktype codes
970  * \todo we need more & maybe put them in a separate file? */
971 #define LINKTYPE_NULL DLT_NULL
972 #define LINKTYPE_ETHERNET DLT_EN10MB
973 #define LINKTYPE_LINUX_SLL 113
974 #define LINKTYPE_PPP 9
975 #define LINKTYPE_RAW DLT_RAW
976 /* http://www.tcpdump.org/linktypes.html defines DLT_RAW as 101, yet others don't.
977  * Libpcap on at least OpenBSD returns 101 as datalink type for RAW pcaps though. */
978 #define LINKTYPE_RAW2 101
979 #define LINKTYPE_IPV4 228
980 #define LINKTYPE_GRE_OVER_IP 778
981 #define LINKTYPE_CISCO_HDLC DLT_C_HDLC
982 #define PPP_OVER_GRE 11
983 #define VLAN_OVER_GRE 13
984 
985 /* Packet Flags */
986 
987 /** Flag to indicate that packet header or contents should not be inspected */
988 #define PKT_NOPACKET_INSPECTION BIT_U32(0)
989 // vacancy
990 
991 /** Flag to indicate that packet contents should not be inspected */
992 #define PKT_NOPAYLOAD_INSPECTION BIT_U32(2)
993 // vacancy
994 
995 /** Packet has matched a tag */
996 #define PKT_HAS_TAG BIT_U32(4)
997 /** Packet payload was added to reassembled stream */
998 #define PKT_STREAM_ADD BIT_U32(5)
999 /** Packet is part of established stream */
1000 #define PKT_STREAM_EST BIT_U32(6)
1001 /** Stream is in eof state */
1002 #define PKT_STREAM_EOF BIT_U32(7)
1003 #define PKT_HAS_FLOW BIT_U32(8)
1004 /** Pseudo packet to end the stream */
1005 #define PKT_PSEUDO_STREAM_END BIT_U32(9)
1006 /** Packet is modified by the stream engine, we need to recalc the csum and \
1007  reinject/replace */
1008 #define PKT_STREAM_MODIFIED BIT_U32(10)
1009 /** Packet mark is modified */
1010 #define PKT_MARK_MODIFIED BIT_U32(11)
1011 /** Exclude packet from pcap logging as it's part of a stream that has reassembly \
1012  depth reached. */
1013 #define PKT_STREAM_NOPCAPLOG BIT_U32(12)
1015 #define PKT_TUNNEL BIT_U32(13)
1016 #define PKT_TUNNEL_VERDICTED BIT_U32(14)
1018 /** Packet checksum is not computed (TX packet for example) */
1019 #define PKT_IGNORE_CHECKSUM BIT_U32(15)
1020 /** Packet comes from zero copy (ext_pkt must not be freed) */
1021 #define PKT_ZERO_COPY BIT_U32(16)
1023 #define PKT_HOST_SRC_LOOKED_UP BIT_U32(17)
1024 #define PKT_HOST_DST_LOOKED_UP BIT_U32(18)
1026 /** Packet is a fragment */
1027 #define PKT_IS_FRAGMENT BIT_U32(19)
1028 #define PKT_IS_INVALID BIT_U32(20)
1029 #define PKT_PROFILE BIT_U32(21)
1031 /** indication by decoder that it feels the packet should be handled by
1032  * flow engine: Packet::flow_hash will be set */
1033 #define PKT_WANTS_FLOW BIT_U32(22)
1035 /** protocol detection done */
1036 #define PKT_PROTO_DETECT_TS_DONE BIT_U32(23)
1037 #define PKT_PROTO_DETECT_TC_DONE BIT_U32(24)
1039 #define PKT_REBUILT_FRAGMENT \
1040  BIT_U32(25) /**< Packet is rebuilt from \
1041  * fragments. */
1042 #define PKT_DETECT_HAS_STREAMDATA \
1043  BIT_U32(26) /**< Set by Detect() if raw stream data is available. */
1045 #define PKT_PSEUDO_DETECTLOG_FLUSH BIT_U32(27) /**< Detect/log flush for protocol upgrade */
1047 /** Packet is part of stream in known bad condition (loss, wrong thread),
1048  * so flag it for not setting stream events */
1049 #define PKT_STREAM_NO_EVENTS BIT_U32(28)
1051 /** We had no alert on flow before this packet */
1052 #define PKT_FIRST_ALERTS BIT_U32(29)
1053 #define PKT_FIRST_TAG BIT_U32(30)
1055 /** Packet updated the app-layer. */
1056 #define PKT_APPLAYER_UPDATE BIT_U32(31)
1058 /** \brief return 1 if the packet is a pseudo packet */
1059 #define PKT_IS_PSEUDOPKT(p) \
1060  ((p)->flags & (PKT_PSEUDO_STREAM_END|PKT_PSEUDO_DETECTLOG_FLUSH))
1061 
1062 #define PKT_SET_SRC(p, src_val) ((p)->pkt_src = src_val)
1064 #define PKT_DEFAULT_MAX_DECODED_LAYERS 16
1065 extern uint8_t decoder_max_layers;
1066 
1067 static inline bool PacketIncreaseCheckLayers(Packet *p)
1068 {
1069  p->nb_decoded_layers++;
1072  return false;
1073  }
1074  return true;
1075 }
1076 
1077 /** \brief Set the No payload inspection Flag for the packet.
1078  *
1079  * \param p Packet to set the flag in
1080  */
1081 static inline void DecodeSetNoPayloadInspectionFlag(Packet *p)
1082 {
1084 }
1085 
1086 /** \brief Set the No packet inspection Flag for the packet.
1087  *
1088  * \param p Packet to set the flag in
1089  */
1090 static inline void DecodeSetNoPacketInspectionFlag(Packet *p)
1091 {
1093 }
1094 
1095 /** \brief return true if *this* packet needs to trigger a verdict.
1096  *
1097  * If we have the root packet, and we have none outstanding,
1098  * we can verdict now.
1099  *
1100  * If we have a upper layer packet, it's the only one and root
1101  * is already processed, we can verdict now.
1102  *
1103  * Otherwise, a future packet will issue the verdict.
1104  */
1105 static inline bool VerdictTunnelPacket(Packet *p)
1106 {
1107  bool verdict = true;
1109  SCSpinLock(lock);
1110  const uint16_t outstanding = TUNNEL_PKT_TPR(p) - TUNNEL_PKT_RTV(p);
1111  SCLogDebug("tunnel: outstanding %u", outstanding);
1112 
1113  /* if there are packets outstanding, we won't verdict this one */
1114  if (IS_TUNNEL_ROOT_PKT(p) && !IS_TUNNEL_PKT_VERDICTED(p) && !outstanding) {
1115  // verdict
1116  SCLogDebug("root %p: verdict", p);
1117  } else if (!IS_TUNNEL_ROOT_PKT(p) && outstanding == 1 && p->root && IS_TUNNEL_PKT_VERDICTED(p->root)) {
1118  // verdict
1119  SCLogDebug("tunnel %p: verdict", p);
1120  } else {
1121  verdict = false;
1122  }
1123  SCSpinUnlock(lock);
1124  return verdict;
1125 }
1126 
1127 static inline void DecodeLinkLayer(ThreadVars *tv, DecodeThreadVars *dtv,
1128  const int datalink, Packet *p, const uint8_t *data, const uint32_t len)
1129 {
1130  /* call the decoder */
1131  switch (datalink) {
1132  case LINKTYPE_ETHERNET:
1133  DecodeEthernet(tv, dtv, p, data, len);
1134  break;
1135  case LINKTYPE_LINUX_SLL:
1136  DecodeSll(tv, dtv, p, data, len);
1137  break;
1138  case LINKTYPE_PPP:
1139  DecodePPP(tv, dtv, p, data, len);
1140  break;
1141  case LINKTYPE_RAW:
1142  case LINKTYPE_GRE_OVER_IP:
1143  DecodeRaw(tv, dtv, p, data, len);
1144  break;
1145  case LINKTYPE_NULL:
1146  DecodeNull(tv, dtv, p, data, len);
1147  break;
1148  case LINKTYPE_CISCO_HDLC:
1149  DecodeCHDLC(tv, dtv, p, data, len);
1150  break;
1151  default:
1152  SCLogError("datalink type "
1153  "%" PRId32 " not yet supported",
1154  datalink);
1155  break;
1156  }
1157 }
1158 
1159 /** \brief decode network layer
1160  * \retval bool true if successful, false if unknown */
1161 static inline bool DecodeNetworkLayer(ThreadVars *tv, DecodeThreadVars *dtv,
1162  const uint16_t proto, Packet *p, const uint8_t *data, const uint32_t len)
1163 {
1164  switch (proto) {
1165  case ETHERNET_TYPE_IP: {
1166  uint16_t ip_len = (len < USHRT_MAX) ? (uint16_t)len : (uint16_t)USHRT_MAX;
1167  DecodeIPV4(tv, dtv, p, data, ip_len);
1168  break;
1169  }
1170  case ETHERNET_TYPE_IPV6: {
1171  uint16_t ip_len = (len < USHRT_MAX) ? (uint16_t)len : (uint16_t)USHRT_MAX;
1172  DecodeIPV6(tv, dtv, p, data, ip_len);
1173  break;
1174  }
1176  DecodePPPOESession(tv, dtv, p, data, len);
1177  break;
1179  DecodePPPOEDiscovery(tv, dtv, p, data, len);
1180  break;
1181  case ETHERNET_TYPE_VLAN:
1182  case ETHERNET_TYPE_8021AD:
1184  if (p->vlan_idx >= 2) {
1186  } else {
1187  DecodeVLAN(tv, dtv, p, data, len);
1188  }
1189  break;
1190  case ETHERNET_TYPE_8021AH:
1191  DecodeIEEE8021ah(tv, dtv, p, data, len);
1192  break;
1193  case ETHERNET_TYPE_ARP:
1195  break;
1198  DecodeMPLS(tv, dtv, p, data, len);
1199  break;
1200  case ETHERNET_TYPE_DCE:
1203  } else {
1204  DecodeEthernet(tv, dtv, p, data, len);
1205  }
1206  break;
1207  case ETHERNET_TYPE_VNTAG:
1208  DecodeVNTag(tv, dtv, p, data, len);
1209  break;
1210  case ETHERNET_TYPE_NSH:
1211  DecodeNSH(tv, dtv, p, data, len);
1212  break;
1213  default:
1214  SCLogDebug("unknown ether type: %" PRIx16 "", proto);
1216  return false;
1217  }
1218  return true;
1219 }
1220 
1221 #endif /* __DECODE_H__ */
CaptureStats
struct CaptureStats_ CaptureStats
suricata-plugin.h
ENGINE_SET_EVENT
#define ENGINE_SET_EVENT(p, e)
Definition: decode.h:887
DecodeThreadVars_::counter_flow_get_used_eval_busy
uint16_t counter_flow_get_used_eval_busy
Definition: decode.h:732
PKT_DROP_REASON_DEFRAG_MEMCAP
@ PKT_DROP_REASON_DEFRAG_MEMCAP
Definition: decode.h:394
Packet_::greh
GREHdr * greh
Definition: decode.h:569
PKT_DROP_REASON_DEFRAG_ERROR
@ PKT_DROP_REASON_DEFRAG_ERROR
Definition: decode.h:393
decode-ethernet.h
decode-tcp.h
DecodeThreadVars_::counter_defrag_ipv4_reassembled
uint16_t counter_defrag_ipv4_reassembled
Definition: decode.h:712
Packet_::proto
uint8_t proto
Definition: decode.h:450
spin_lock_cnt
thread_local uint64_t spin_lock_cnt
PKT_DROP_REASON_RULES_THRESHOLD
@ PKT_DROP_REASON_RULES_THRESHOLD
Definition: decode.h:400
DecodeIPV6
int DecodeIPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-ipv6.c:564
DecodeERSPAN
int DecodeERSPAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
ERSPAN Type II.
Definition: decode-erspan.c:75
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:687
decode-mpls.h
DecodeThreadVars_::counter_flow_udp
uint16_t counter_flow_udp
Definition: decode.h:725
len
uint8_t len
Definition: app-layer-dnp3.h:2
DecodeThreadVars_::counter_bytes
uint16_t counter_bytes
Definition: decode.h:670
DECODE_TUNNEL_IPV6
@ DECODE_TUNNEL_IPV6
Definition: decode.h:811
source-pcap.h
CaptureStats_::counter_ips_blocked
uint16_t counter_ips_blocked
Definition: decode.h:751
PktProfilingData_::ticks_end
uint64_t ticks_end
Definition: decode.h:347
PacketAlert_::s
const struct Signature_ * s
Definition: decode.h:267
DecodeThreadVars_::counter_eth
uint16_t counter_eth
Definition: decode.h:678
IPV4Vars_
Definition: decode-ipv4.h:174
DecodeThreadVars_::counter_flow_active
uint16_t counter_flow_active
Definition: decode.h:723
StatsIncr
void StatsIncr(ThreadVars *tv, uint16_t id)
Increments the local counter.
Definition: counters.c:167
CHECKSUM_VALIDATION_OFFLOAD
@ CHECKSUM_VALIDATION_OFFLOAD
Definition: decode.h:50
offset
uint64_t offset
Definition: util-streaming-buffer.h:0
Packet_::sctph
SCTPHdr * sctph
Definition: decode.h:557
NapatechPacketVars_
Definition: util-napatech.h:30
Packet_::code
uint8_t code
Definition: decode.h:439
PacketFreeOrRelease
void PacketFreeOrRelease(Packet *p)
Return a packet to where it was allocated.
Definition: decode.c:191
PLUGIN_VAR_SIZE
#define PLUGIN_VAR_SIZE
Definition: suricata-plugin.h:30
DecodeThreadVars_::counter_flow_icmp4
uint16_t counter_flow_icmp4
Definition: decode.h:726
DecodeThreadVars_::counter_vxlan
uint16_t counter_vxlan
Definition: decode.h:699
DecodeThreadVars_::counter_max_pkt_size
uint16_t counter_max_pkt_size
Definition: decode.h:672
PacketCopyData
int PacketCopyData(Packet *p, const uint8_t *pktdata, uint32_t pktlen)
Copy data to Packet payload and set packet length.
Definition: decode.c:292
decode-pppoe.h
Packet_::vlan_id
uint16_t vlan_id[2]
Definition: decode.h:455
PacketBypassCallback
void PacketBypassCallback(Packet *p)
Definition: decode.c:444
DecodeSCTP
int DecodeSCTP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-sctp.c:66
ICMPV4Vars_
Definition: decode-icmpv4.h:183
DecodeThreadVars_::counter_avg_pkt_size
uint16_t counter_avg_pkt_size
Definition: decode.h:671
PktProfiling_
Per pkt stats storage.
Definition: decode.h:376
Address_::address_un_data16
uint16_t address_un_data16[8]
Definition: decode.h:118
PktProfilingPrefilterData_::engines
PktProfilingPrefilterEngine * engines
Definition: decode.h:371
DecodePPP
int DecodePPP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-ppp.c:44
Address_::address_un_in6
struct in6_addr address_un_in6
Definition: decode.h:120
unlikely
#define unlikely(expr)
Definition: util-optimize.h:35
PKT_DROP_REASON_STREAM_MEMCAP
@ PKT_DROP_REASON_STREAM_MEMCAP
Definition: decode.h:402
PktProfilingTmmData_
Per TMM stats storage.
Definition: decode.h:326
IPV6ExtHdrs_
Definition: decode-ipv6.h:215
PktPool_
Definition: tmqh-packetpool.h:39
Packet_::host_src
struct Host_ * host_src
Definition: decode.h:590
PKT_DROP_REASON_FLOW_MEMCAP
@ PKT_DROP_REASON_FLOW_MEMCAP
Definition: decode.h:395
PPPOESessionHdr_
Definition: decode-pppoe.h:37
PacketDropReasonToString
const char * PacketDropReasonToString(enum PacketDropReason r)
Definition: decode.c:785
PacketEngineEvents_::events
uint8_t events[PACKET_ENGINE_EVENT_MAX]
Definition: decode.h:309
CaptureStats_
Definition: decode.h:748
DECODE_TUNNEL_IPV6_TEREDO
@ DECODE_TUNNEL_IPV6_TEREDO
Definition: decode.h:812
SCLogDebug
#define SCLogDebug(...)
Definition: util-debug.h:269
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:594
PktProfiling_::ticks_end
uint64_t ticks_end
Definition: decode.h:378
TCPVars_
Definition: decode-tcp.h:155
AddressDebugPrint
void AddressDebugPrint(Address *)
Debug print function for printing addresses.
Definition: decode.c:672
PKT_SRC_DECODER_IPV4
@ PKT_SRC_DECODER_IPV4
Definition: decode.h:56
DecodeThreadVars_::counter_flow_spare_sync_avg
uint16_t counter_flow_spare_sync_avg
Definition: decode.h:738
PacketDefragPktSetup
Packet * PacketDefragPktSetup(Packet *parent, const uint8_t *pkt, uint32_t len, uint8_t proto)
Setup a pseudo packet (reassembled frags)
Definition: decode.c:389
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:573
PacketAlerts_::cnt
uint16_t cnt
Definition: decode.h:289
GENERIC_TOO_MANY_LAYERS
@ GENERIC_TOO_MANY_LAYERS
Definition: decode-events.h:221
ETHERNET_TYPE_IPV6
#define ETHERNET_TYPE_IPV6
Definition: decode-ethernet.h:39
PKT_SRC_CAPTURE_TIMEOUT
@ PKT_SRC_CAPTURE_TIMEOUT
Definition: decode.h:64
DecodeUDP
int DecodeUDP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-udp.c:75
Packet_::flags
uint32_t flags
Definition: decode.h:463
decode-udp.h
Packet_::action
uint8_t action
Definition: decode.h:577
PacketAlertCreate
PacketAlert * PacketAlertCreate(void)
Initialize PacketAlerts with dynamic alerts array size.
Definition: decode.c:83
PktProfilingDetectData
struct PktProfilingDetectData_ PktProfilingDetectData
DecodeThreadVars_::counter_vntag
uint16_t counter_vntag
Definition: decode.h:700
Packet_::vlan_idx
uint8_t vlan_idx
Definition: decode.h:456
Flow_
Flow data structure.
Definition: flow.h:357
DecodeThreadVars_::counter_flow_get_used_eval
uint16_t counter_flow_get_used_eval
Definition: decode.h:730
LiveDevice_
Definition: util-device.h:39
PROF_DETECT_SIZE
@ PROF_DETECT_SIZE
Definition: suricata-common.h:445
PktVar_::next
struct PktVar_ * next
Definition: decode.h:314
DecoderFunc
int(* DecoderFunc)(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p, const uint8_t *pkt, uint32_t len)
Definition: decode.h:881
PktProfilingTmmData_::ticks_end
uint64_t ticks_end
Definition: decode.h:328
Packet_::ipfw_v
IPFWPacketVars ipfw_v
Definition: decode.h:482
Packet_::pool
struct PktPool_ * pool
Definition: decode.h:635
Packet_::ip4vars
IPV4Vars ip4vars
Definition: decode.h:537
IS_TUNNEL_ROOT_PKT
#define IS_TUNNEL_ROOT_PKT(p)
Definition: decode.h:800
CHECKSUM_VALIDATION_RXONLY
@ CHECKSUM_VALIDATION_RXONLY
Definition: decode.h:48
Packet_::ip6vars
IPV6Vars ip6vars
Definition: decode.h:539
DECODE_TUNNEL_ERSPANI
@ DECODE_TUNNEL_ERSPANI
Definition: decode.h:808
PacketAlerts_::alerts
PacketAlert * alerts
Definition: decode.h:292
LINKTYPE_LINUX_SLL
#define LINKTYPE_LINUX_SLL
Definition: decode.h:973
PktProfilingTmmData
struct PktProfilingTmmData_ PktProfilingTmmData
Per TMM stats storage.
DecodeThreadVars_::counter_teredo
uint16_t counter_teredo
Definition: decode.h:703
DecodeThreadVars_::counter_erspan
uint16_t counter_erspan
Definition: decode.h:707
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:250
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:125
Packet_::pppoesh
PPPOESessionHdr * pppoesh
Definition: decode.h:566
DecodeThreadVars_::counter_raw
uint16_t counter_raw
Definition: decode.h:690
DecodeThreadVars
struct DecodeThreadVars_ DecodeThreadVars
Structure to hold thread specific data for all decode modules.
PktProfilingPrefilterData_
Definition: decode.h:370
SCSpinLock
#define SCSpinLock
Definition: threads-debug.h:235
PacketAlerts_::drop
PacketAlert drop
Definition: decode.h:295
DecodeVNTag
int DecodeVNTag(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-vntag.c:52
Address_
Definition: decode.h:114
CHECKSUM_VALIDATION_DISABLE
@ CHECKSUM_VALIDATION_DISABLE
Definition: decode.h:45
DecodeThreadVars_::counter_arp
uint16_t counter_arp
Definition: decode.h:686
DecodeThreadVars_::counter_flow_tcp
uint16_t counter_flow_tcp
Definition: decode.h:724
CHECKSUM_VALIDATION_KERNEL
@ CHECKSUM_VALIDATION_KERNEL
Definition: decode.h:49
PacketDecodeFinalize
void PacketDecodeFinalize(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p)
Finalize decoding of a packet.
Definition: decode.c:147
Address_::address_un_data32
uint32_t address_un_data32[4]
Definition: decode.h:117
Packet_::tcpvars
TCPVars tcpvars
Definition: decode.h:545
proto
uint8_t proto
Definition: decode-template.h:0
PKT_NOPAYLOAD_INSPECTION
#define PKT_NOPAYLOAD_INSPECTION
Definition: decode.h:992
PacketAlertGetMaxConfig
void PacketAlertGetMaxConfig(void)
Definition: decode.c:861
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:178
PktProfilingDetectData_::ticks_end
uint64_t ticks_end
Definition: decode.h:352
decoder_max_layers
uint8_t decoder_max_layers
Definition: decode.c:76
DecodeThreadVars_::counter_tcp_active_sessions
uint16_t counter_tcp_active_sessions
Definition: decode.h:721
PacketAlert
struct PacketAlert_ PacketAlert
Packet_::host_dst
struct Host_ * host_dst
Definition: decode.h:591
PktProfilingLoggerData
struct PktProfilingLoggerData_ PktProfilingLoggerData
Packet_::flowflags
uint8_t flowflags
Definition: decode.h:459
PktProfilingPrefilterEngine
struct PktProfilingPrefilterEngine_ PktProfilingPrefilterEngine
Packet_::BypassPacketsFlow
int(* BypassPacketsFlow)(struct Packet_ *)
Definition: decode.h:518
ALPROTO_MAX
@ ALPROTO_MAX
Definition: app-layer-protos.h:75
PacketDropReason
PacketDropReason
Definition: decode.h:390
DecodeThreadVars_::counter_max_mac_addrs_src
uint16_t counter_max_mac_addrs_src
Definition: decode.h:673
PktProfiling_::app
PktProfilingAppData app[ALPROTO_MAX]
Definition: decode.h:382
PktProfiling_::ticks_start
uint64_t ticks_start
Definition: decode.h:377
DecodeUnregisterCounters
void DecodeUnregisterCounters(void)
Definition: decode.c:516
rww_lock_contention
thread_local uint64_t rww_lock_contention
Packet_::payload_len
uint16_t payload_len
Definition: decode.h:574
DecodeThreadVars_::counter_flow_get_used
uint16_t counter_flow_get_used
Definition: decode.h:729
Packet_::alerts
PacketAlerts alerts
Definition: decode.h:588
Packet_::tunnel_tpr_cnt
uint16_t tunnel_tpr_cnt
Definition: decode.h:627
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:600
Packet_::events
PacketEngineEvents events
Definition: decode.h:598
PacketAlertFree
void PacketAlertFree(PacketAlert *pa)
Definition: decode.c:91
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:736
PktProfilingAppData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:357
DecodeThreadVars_::counter_flow_tcp_reuse
uint16_t counter_flow_tcp_reuse
Definition: decode.h:728
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:268
rwr_lock_contention
thread_local uint64_t rwr_lock_contention
LINKTYPE_NULL
#define LINKTYPE_NULL
Definition: decode.h:971
DECODE_TUNNEL_NSH
@ DECODE_TUNNEL_NSH
Definition: decode.h:814
DecodeThreadVars_::counter_flow_total
uint16_t counter_flow_total
Definition: decode.h:722
PacketAlert_::action
uint8_t action
Definition: decode.h:265
VLAN_HEADER_TOO_MANY_LAYERS
@ VLAN_HEADER_TOO_MANY_LAYERS
Definition: decode-events.h:147
Packet_::icmp_s
struct Packet_::@32::@42 icmp_s
Packet_::datalink
int datalink
Definition: decode.h:607
Packet_::profile
PktProfiling * profile
Definition: decode.h:638
spin_lock_wait_ticks
thread_local uint64_t spin_lock_wait_ticks
CHECKSUM_VALIDATION_ENABLE
@ CHECKSUM_VALIDATION_ENABLE
Definition: decode.h:46
lock
HRLOCK_TYPE lock
Definition: host.h:0
decode-gre.h
DecodeRegisterPerfCounters
void DecodeRegisterPerfCounters(DecodeThreadVars *, ThreadVars *)
Definition: decode.c:526
Packet_::level3_comp_csum
int32_t level3_comp_csum
Definition: decode.h:527
DecodeThreadVars_::counter_flow_spare_sync
uint16_t counter_flow_spare_sync
Definition: decode.h:735
DECODE_TUNNEL_ERSPANII
@ DECODE_TUNNEL_ERSPANII
Definition: decode.h:807
CHECKSUM_VALIDATION_AUTO
@ CHECKSUM_VALIDATION_AUTO
Definition: decode.h:47
DecodeThreadVars_::counter_ipv6inipv6
uint16_t counter_ipv6inipv6
Definition: decode.h:706
Packet_::pktlen
uint32_t pktlen
Definition: decode.h:582
decode-ipv6.h
TUNNEL_PKT_TPR
#define TUNNEL_PKT_TPR(p)
Definition: decode.h:795
Packet_::level4_comp_csum
int32_t level4_comp_csum
Definition: decode.h:529
util-debug.h
DecodeThreadVars_::counter_flow_get_used_failed
uint16_t counter_flow_get_used_failed
Definition: decode.h:733
PKT_SRC_WIRE
@ PKT_SRC_WIRE
Definition: decode.h:54
source-nfq.h
Packet_::pktvar
PktVar * pktvar
Definition: decode.h:521
CaptureStats_::counter_ips_rejected
uint16_t counter_ips_rejected
Definition: decode.h:752
DPDKPacketVars_
per packet DPDK vars
Definition: source-dpdk.h:84
DecodeThreadVars_::counter_icmpv4
uint16_t counter_icmpv4
Definition: decode.h:684
DecodeThreadVars_::counter_ppp
uint16_t counter_ppp
Definition: decode.h:694
ETHERNET_TYPE_8021AD
#define ETHERNET_TYPE_8021AD
Definition: decode-ethernet.h:43
PacketAlert_::num
SigIntId num
Definition: decode.h:264
Packet_::tunnel_lock
SCSpinlock tunnel_lock
Definition: decode.h:648
Packet_::ts
SCTime_t ts
Definition: decode.h:471
PKT_DROP_REASON_APPLAYER_ERROR
@ PKT_DROP_REASON_APPLAYER_ERROR
Definition: decode.h:397
PacketSwap
void PacketSwap(Packet *p)
switch direction of a packet
Definition: decode.c:491
DecodeMPLS
int DecodeMPLS(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-mpls.c:49
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:53
PKT_DROP_REASON_NOT_SET
@ PKT_DROP_REASON_NOT_SET
Definition: decode.h:391
flow-worker.h
PktVar_::value
uint8_t * value
Definition: decode.h:320
PktProfilingAppData
struct PktProfilingAppData_ PktProfilingAppData
DecodeTunnelProto
DecodeTunnelProto
Definition: decode.h:805
Packet_::prev
struct Packet_ * prev
Definition: decode.h:604
Packet
struct Packet_ Packet
decode-ppp.h
Packet_::pcap_v
PcapPacketVars pcap_v
Definition: decode.h:511
IS_TUNNEL_PKT_VERDICTED
#define IS_TUNNEL_PKT_VERDICTED(p)
Definition: decode.h:802
CaptureStatsSetup
void CaptureStatsSetup(ThreadVars *tv, CaptureStats *s)
Definition: decode.c:836
PKT_SRC_DECODER_TEREDO
@ PKT_SRC_DECODER_TEREDO
Definition: decode.h:58
DecodeTEMPLATE
int DecodeTEMPLATE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Function to decode TEMPLATE packets.
Definition: decode-template.c:51
Packet_::tunnel_rtv_cnt
uint16_t tunnel_rtv_cnt
Definition: decode.h:625
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
Packet_::ethh
EthernetHdr * ethh
Definition: decode.h:524
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:345
DECODE_TUNNEL_PPP
@ DECODE_TUNNEL_PPP
Definition: decode.h:813
Packet_::sp
Port sp
Definition: decode.h:435
PktProfiling_::logger
PktProfilingLoggerData logger[LOGGER_SIZE]
Definition: decode.h:384
PacketFree
void PacketFree(Packet *p)
Return a malloced packet.
Definition: decode.c:134
SCSpinUnlock
#define SCSpinUnlock
Definition: threads-debug.h:237
PktSrcToString
const char * PktSrcToString(enum PktSrcEnum pkt_src)
Definition: decode.c:741
PktVar
struct PktVar_ PktVar
DecodeThreadVars_::counter_vlan_qinq
uint16_t counter_vlan_qinq
Definition: decode.h:698
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:980
LINKTYPE_PPP
#define LINKTYPE_PPP
Definition: decode.h:974
PktProfilingDetectData_
Definition: decode.h:350
PktVar_::key
uint8_t * key
Definition: decode.h:319
decode-icmpv6.h
PacketAlerts_::discarded
uint16_t discarded
Definition: decode.h:290
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:399
DecodeThreadVars_::counter_defrag_ipv6_timeouts
uint16_t counter_defrag_ipv6_timeouts
Definition: decode.h:716
LOGGER_SIZE
@ LOGGER_SIZE
Definition: suricata-common.h:482
PacketCallocExtPkt
int PacketCallocExtPkt(Packet *p, int datalen)
Definition: decode.c:224
Address
struct Address_ Address
AppLayerDecoderEventsFreeEvents
void AppLayerDecoderEventsFreeEvents(AppLayerDecoderEvents **events)
Definition: app-layer-events.c:134
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:61
DECODE_TUNNEL_VLAN
@ DECODE_TUNNEL_VLAN
Definition: decode.h:809
Packet_::icmpv6h
ICMPV6Hdr * icmpv6h
Definition: decode.h:563
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:57
CaptureStats_::counter_ips_accepted
uint16_t counter_ips_accepted
Definition: decode.h:750
IPV6Hdr_
Definition: decode-ipv6.h:32
Packet_
Definition: decode.h:428
DecodeThreadVars_::counter_nsh
uint16_t counter_nsh
Definition: decode.h:708
DECODE_TUNNEL_IPV4
@ DECODE_TUNNEL_IPV4
Definition: decode.h:810
DecodeThreadVars_::app_tctx
AppLayerThreadCtx * app_tctx
Definition: decode.h:666
DecodeThreadVars_::counter_defrag_ipv4_timeouts
uint16_t counter_defrag_ipv4_timeouts
Definition: decode.h:713
decode-icmpv4.h
DecodeThreadVars_::counter_sll
uint16_t counter_sll
Definition: decode.h:689
source-ipfw.h
Address_::address_un_data8
uint8_t address_un_data8[16]
Definition: decode.h:119
TMM_SIZE
@ TMM_SIZE
Definition: tm-threads-common.h:79
PacketEngineEvents_
Definition: decode.h:307
source-netmap.h
Packet_::ip4h
IPV4Hdr * ip4h
Definition: decode.h:531
PKT_DROP_REASON_STREAM_ERROR
@ PKT_DROP_REASON_STREAM_ERROR
Definition: decode.h:401
Port
uint16_t Port
Definition: decode.h:229
DecodeThreadVars_::counter_sctp
uint16_t counter_sctp
Definition: decode.h:692
SCTime_t
Definition: util-time.h:40
Packet_::livedev
struct LiveDevice_ * livedev
Definition: decode.h:586
source-windivert.h
DecodeThreadVars_::counter_invalid
uint16_t counter_invalid
Definition: decode.h:676
ETHERNET_TYPE_VNTAG
#define ETHERNET_TYPE_VNTAG
Definition: decode-ethernet.h:51
DecodeThreadVars_::counter_ieee8021ah
uint16_t counter_ieee8021ah
Definition: decode.h:701
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:248
DecodeThreadVars_::counter_ipv4inipv6
uint16_t counter_ipv4inipv6
Definition: decode.h:705
ETHERNET_TYPE_NSH
#define ETHERNET_TYPE_NSH
Definition: decode-ethernet.h:50
Address_::address
union Address_::@31 address
DecodeThreadVars_::counter_vlan
uint16_t counter_vlan
Definition: decode.h:697
Packet_::persistent
struct Packet_::@41 persistent
DECODE_TUNNEL_ETHERNET
@ DECODE_TUNNEL_ETHERNET
Definition: decode.h:806
DecodeThreadVars_::counter_tcp
uint16_t counter_tcp
Definition: decode.h:682
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:669
rwr_lock_wait_ticks
thread_local uint64_t rwr_lock_wait_ticks
Packet_::l4vars
union Packet_::@40 l4vars
decode-events.h
PktProfilingPrefilterEngine_
Definition: decode.h:366
PktProfilingData_::ticks_start
uint64_t ticks_start
Definition: decode.h:346
DecodeNull
int DecodeNull(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-null.c:52
dtv
DecodeThreadVars * dtv
Definition: fuzz_decodepcapfile.c:33
DecodeIPV4
int DecodeIPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t)
Definition: decode-ipv4.c:520
PacketAlert_::frame_id
int64_t frame_id
Definition: decode.h:269
PktProfilingPrefilterData
struct PktProfilingPrefilterData_ PktProfilingPrefilterData
Packet_::ntpv
NapatechPacketVars ntpv
Definition: decode.h:502
decode-vlan.h
IPV4Hdr_
Definition: decode-ipv4.h:72
default_packet_size
uint32_t default_packet_size
Definition: decode.c:72
LINKTYPE_RAW
#define LINKTYPE_RAW
Definition: decode.h:975
Packet_::nb_decoded_layers
uint8_t nb_decoded_layers
Definition: decode.h:612
PacketAlert_::flags
uint8_t flags
Definition: decode.h:266
PKT_SRC_DECODER_GENEVE
@ PKT_SRC_DECODER_GENEVE
Definition: decode.h:65
decode-ipv4.h
DecodeThreadVars_::counter_chdlc
uint16_t counter_chdlc
Definition: decode.h:679
Packet_::ppph
PPPHdr * ppph
Definition: decode.h:565
Packet_::nfq_v
NFQPacketVars nfq_v
Definition: decode.h:479
ICMPV6Hdr_
Definition: decode-icmpv6.h:144
PktProfiling_::detect
PktProfilingDetectData detect[PROF_DETECT_SIZE]
Definition: decode.h:383
Packet_::icmpv4vars
ICMPV4Vars icmpv4vars
Definition: decode.h:546
Packet_::ReleasePacket
void(* ReleasePacket)(struct Packet_ *)
Definition: decode.h:515
Packet_::tenant_id
uint32_t tenant_id
Definition: decode.h:630
Packet_::flow
struct Flow_ * flow
Definition: decode.h:465
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:161
PKT_DROP_REASON_INNER_PACKET
@ PKT_DROP_REASON_INNER_PACKET
Definition: decode.h:405
PktProfiling
struct PktProfiling_ PktProfiling
Per pkt stats storage.
DecodeThreadVarsFree
void DecodeThreadVarsFree(ThreadVars *, DecodeThreadVars *)
Definition: decode.c:708
IPFWPacketVars_
Definition: source-ipfw.h:32
source-dpdk.h
PktProfilingLoggerData_::ticks_end
uint64_t ticks_end
Definition: decode.h:362
PktProfilingPrefilterEngine_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:367
DecodeThreadVars_::counter_flow_spare_sync_incomplete
uint16_t counter_flow_spare_sync_incomplete
Definition: decode.h:737
PKT_DROP_REASON_APPLAYER_MEMCAP
@ PKT_DROP_REASON_APPLAYER_MEMCAP
Definition: decode.h:398
DecodeGlobalConfig
void DecodeGlobalConfig(void)
Definition: decode.c:844
ChecksumValidationMode
ChecksumValidationMode
Definition: decode.h:44
suricata-common.h
PKT_SRC_FFR
@ PKT_SRC_FFR
Definition: decode.h:60
DecodeIPV6FragHeader
void DecodeIPV6FragHeader(Packet *p, const uint8_t *pkt, uint16_t hdrextlen, uint16_t plen, uint16_t prev_hdrextlen)
Definition: decode-ipv6.c:93
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:727
Packet_::tcph
TCPHdr * tcph
Definition: decode.h:553
DecodeThreadVars_::counter_ipv6
uint16_t counter_ipv6
Definition: decode.h:681
PROFILE_FLOWWORKER_SIZE
@ PROFILE_FLOWWORKER_SIZE
Definition: flow-worker.h:29
source-af-xdp.h
CaptureStats_::counter_ips_replaced
uint16_t counter_ips_replaced
Definition: decode.h:753
ETHERNET_DCE_HEADER_LEN
#define ETHERNET_DCE_HEADER_LEN
Definition: decode-ethernet.h:30
DecodeThreadVars_::counter_gre
uint16_t counter_gre
Definition: decode.h:696
DecodeThreadVars_::counter_esp
uint16_t counter_esp
Definition: decode.h:693
Packet_::ext_pkt
uint8_t * ext_pkt
Definition: decode.h:583
PacketAlerts
struct PacketAlerts_ PacketAlerts
DecodeICMPV4
int DecodeICMPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Main ICMPv4 decoding function.
Definition: decode-icmpv4.c:156
decode-esp.h
PKT_DROP_REASON_NFQ_ERROR
@ PKT_DROP_REASON_NFQ_ERROR
Definition: decode.h:404
DecodeThreadVars_::counter_defrag_ipv6_reassembled
uint16_t counter_defrag_ipv6_reassembled
Definition: decode.h:715
DecodeThreadVars_::counter_udp
uint16_t counter_udp
Definition: decode.h:683
PacketUpdateEngineEventCounters
void PacketUpdateEngineEventCounters(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p)
Definition: decode.c:154
DECODE_EVENT_MAX
@ DECODE_EVENT_MAX
Definition: decode-events.h:296
decode-sctp.h
CaptureStatsUpdate
void CaptureStatsUpdate(ThreadVars *tv, CaptureStats *s, const Packet *p)
Definition: decode.c:823
PKT_SRC_DEFRAG
@ PKT_SRC_DEFRAG
Definition: decode.h:59
Packet_::icmpv4h
ICMPV4Hdr * icmpv4h
Definition: decode.h:561
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:680
threadvars.h
PacketGetFromAlloc
Packet * PacketGetFromAlloc(void)
Get a malloced packet.
Definition: decode.c:173
TUNNEL_PKT_RTV
#define TUNNEL_PKT_RTV(p)
Definition: decode.h:794
source-af-packet.h
PKT_SRC_DECODER_VXLAN
@ PKT_SRC_DECODER_VXLAN
Definition: decode.h:62
mutex_lock_wait_ticks
thread_local uint64_t mutex_lock_wait_ticks
DCE_PKT_TOO_SMALL
@ DCE_PKT_TOO_SMALL
Definition: decode-events.h:207
Packet_::next
struct Packet_ * next
Definition: decode.h:603
Packet_::flow_hash
uint32_t flow_hash
Definition: decode.h:469
Packet_::root
struct Packet_ * root
Definition: decode.h:618
DecodeThreadVars_::counter_pppoe
uint16_t counter_pppoe
Definition: decode.h:702
PacketAlerts_::suppressed
uint16_t suppressed
Definition: decode.h:291
PktProfilingPrefilterData_::size
uint32_t size
Definition: decode.h:372
DecodeThreadVars_::counter_mpls
uint16_t counter_mpls
Definition: decode.h:704
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:63
PktProfilingData
struct PktProfilingData_ PktProfilingData
Packet_::pkt_src
uint8_t pkt_src
Definition: decode.h:579
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:664
PACKET_ENGINE_EVENT_MAX
#define PACKET_ENGINE_EVENT_MAX
Definition: decode.h:304
Packet_::recursion_level
uint8_t recursion_level
Definition: decode.h:453
PktProfilingLoggerData_
Definition: decode.h:360
PktProfiling_::tmm
PktProfilingTmmData tmm[TMM_SIZE]
Definition: decode.h:380
Signature_
Signature container.
Definition: detect.h:542
DecodeThreadVars_::output_flow_thread_data
void * output_flow_thread_data
Definition: decode.h:744
DecodeThreadVars_::counter_geneve
uint16_t counter_geneve
Definition: decode.h:695
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:674
Packet_::pppoedh
PPPOEDiscoveryHdr * pppoedh
Definition: decode.h:567
DecodeThreadVarsAlloc
DecodeThreadVars * DecodeThreadVarsAlloc(ThreadVars *)
Alloc and setup DecodeThreadVars.
Definition: decode.c:689
DecodeThreadVars_::counter_defrag_max_hit
uint16_t counter_defrag_max_hit
Definition: decode.h:717
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:728
SCSpinlock
#define SCSpinlock
Definition: threads-debug.h:234
LINKTYPE_CISCO_HDLC
#define LINKTYPE_CISCO_HDLC
Definition: decode.h:981
PktVar_::value_len
uint16_t value_len
Definition: decode.h:318
app-layer-protos.h
DecodeThreadVars_::counter_null
uint16_t counter_null
Definition: decode.h:691
DecodeThreadVars_::counter_icmpv6
uint16_t counter_icmpv6
Definition: decode.h:685
Packet_::udph
UDPHdr * udph
Definition: decode.h:555
PcapPacketVars_
Definition: source-pcap.h:36
Packet_::drop_reason
uint8_t drop_reason
Definition: decode.h:615
Address_::family
char family
Definition: decode.h:115
Packet_::dst
Address dst
Definition: decode.h:433
PKT_SRC_DECODER_GRE
@ PKT_SRC_DECODER_GRE
Definition: decode.h:55
ENGINE_SET_INVALID_EVENT
#define ENGINE_SET_INVALID_EVENT(p, e)
Definition: decode.h:895
PktProfilingTmmData_::ticks_start
uint64_t ticks_start
Definition: decode.h:327
PacketAlert_
Definition: decode.h:263
PktProfilingLoggerData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:363
DecodeThreadVars_::counter_flow_memcap
uint16_t counter_flow_memcap
Definition: decode.h:719
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:714
PKT_NOPACKET_INSPECTION
#define PKT_NOPACKET_INSPECTION
Definition: decode.h:988
PktVar_
Definition: decode.h:312
AFPPacketVars_
per packet AF_PACKET vars
Definition: source-af-packet.h:144
PacketEngineEvents
struct PacketEngineEvents_ PacketEngineEvents
packet_alert_max
uint16_t packet_alert_max
Definition: decode.c:77
DecodeIEEE8021ah
int DecodeIEEE8021ah(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
PktProfilingDetectData_::ticks_start
uint64_t ticks_start
Definition: decode.h:351
PacketDefragPktSetupParent
void PacketDefragPktSetupParent(Packet *parent)
inform defrag "parent" that a pseudo packet is now associated to it.
Definition: decode.c:427
Packet_::plugin_v
uint8_t plugin_v[PLUGIN_VAR_SIZE]
Definition: decode.h:508
Packet_::ip6h
IPV6Hdr * ip6h
Definition: decode.h:533
Packet_::icmpv6vars
ICMPV6Vars icmpv6vars
Definition: decode.h:547
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:308
PktProfiling_::flowworker
PktProfilingData flowworker[PROFILE_FLOWWORKER_SIZE]
Definition: decode.h:381
mutex_lock_cnt
thread_local uint64_t mutex_lock_cnt
NFLOGPacketVars_
Definition: source-nflog.h:55
PKT_DROP_REASON_STREAM_MIDSTREAM
@ PKT_DROP_REASON_STREAM_MIDSTREAM
Definition: decode.h:403
SigIntId
#define SigIntId
Definition: suricata-common.h:304
PacketAlerts_
Definition: decode.h:288
Packet_::dp
Port dp
Definition: decode.h:443
PktVar_::key_len
uint16_t key_len
Definition: decode.h:317
PktProfilingAppData_
Definition: decode.h:356
Host_
Definition: host.h:58
Packet_::esph
ESPHdr * esph
Definition: decode.h:559
DecodeThreadVars_::counter_flow_get_used_eval_reject
uint16_t counter_flow_get_used_eval_reject
Definition: decode.h:731
PktProfiling_::proto_detect
uint64_t proto_detect
Definition: decode.h:385
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:438
ETHERNET_TYPE_IP
#define ETHERNET_TYPE_IP
Definition: decode-ethernet.h:34
AppLayerDecoderEvents_::events
uint8_t * events
Definition: app-layer-events.h:36
DECODE_TUNNEL_UNSET
@ DECODE_TUNNEL_UNSET
Definition: decode.h:815
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:208
PktProfilingLoggerData_::ticks_start
uint64_t ticks_start
Definition: decode.h:361
PKT_DROP_REASON_FLOW_DROP
@ PKT_DROP_REASON_FLOW_DROP
Definition: decode.h:396
Packet_::src
Address src
Definition: decode.h:432
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:42
DecodeUpdatePacketCounters
void DecodeUpdatePacketCounters(ThreadVars *tv, const DecodeThreadVars *dtv, const Packet *p)
Definition: decode.c:655
DecodeThreadVars_::counter_engine_events
uint16_t counter_engine_events[DECODE_EVENT_MAX]
Definition: decode.h:740
Packet_::icmp_d
struct Packet_::@34::@43 icmp_d
LINKTYPE_ETHERNET
#define LINKTYPE_ETHERNET
Definition: decode.h:972
Packet_::ip6eh
IPV6ExtHdrs ip6eh
Definition: decode.h:540
PktProfilingDetectData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:353
PktVar_::id
uint32_t id
Definition: decode.h:313
PKT_DROP_REASON_DECODE_ERROR
@ PKT_DROP_REASON_DECODE_ERROR
Definition: decode.h:392
DecodeThreadVars_::counter_defrag_ipv4_fragments
uint16_t counter_defrag_ipv4_fragments
Definition: decode.h:711
PacketEngineEvents_::cnt
uint8_t cnt
Definition: decode.h:308
DecodePPPOEDiscovery
int DecodePPPOEDiscovery(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Main decoding function for PPPOE Discovery packets.
Definition: decode-pppoe.c:50