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 
45 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 
82 #include "decode-ethernet.h"
83 #include "decode-gre.h"
84 #include "decode-ppp.h"
85 #include "decode-pppoe.h"
86 #include "decode-ipv4.h"
87 #include "decode-ipv6.h"
88 #include "decode-icmpv4.h"
89 #include "decode-icmpv6.h"
90 #include "decode-tcp.h"
91 #include "decode-udp.h"
92 #include "decode-sctp.h"
93 #include "decode-esp.h"
94 #include "decode-vlan.h"
95 #include "decode-mpls.h"
96 
97 
98 /* forward declarations */
99 struct DetectionEngineThreadCtx_;
101 
102 struct PktPool_;
103 
104 /* declare these here as they are called from the
105  * PACKET_RECYCLE and PACKET_CLEANUP macro's. */
109 
110 /* Address */
111 typedef struct Address_ {
112  char family;
113  union {
114  uint32_t address_un_data32[4]; /* type-specific field */
115  uint16_t address_un_data16[8]; /* type-specific field */
116  uint8_t address_un_data8[16]; /* type-specific field */
117  struct in6_addr address_un_in6;
120 
121 #define addr_data32 address.address_un_data32
122 #define addr_data16 address.address_un_data16
123 #define addr_data8 address.address_un_data8
124 #define addr_in6addr address.address_un_in6
125 
126 #define COPY_ADDRESS(a, b) do { \
127  (b)->family = (a)->family; \
128  (b)->addr_data32[0] = (a)->addr_data32[0]; \
129  (b)->addr_data32[1] = (a)->addr_data32[1]; \
130  (b)->addr_data32[2] = (a)->addr_data32[2]; \
131  (b)->addr_data32[3] = (a)->addr_data32[3]; \
132  } while (0)
133 
134 /* Set the IPv4 addresses into the Addrs of the Packet.
135  * Make sure p->ip4h is initialized and validated.
136  *
137  * We set the rest of the struct to 0 so we can
138  * prevent using memset. */
139 #define SET_IPV4_SRC_ADDR(p, a) do { \
140  (a)->family = AF_INET; \
141  (a)->addr_data32[0] = (uint32_t)(p)->ip4h->s_ip_src.s_addr; \
142  (a)->addr_data32[1] = 0; \
143  (a)->addr_data32[2] = 0; \
144  (a)->addr_data32[3] = 0; \
145  } while (0)
146 
147 #define SET_IPV4_DST_ADDR(p, a) do { \
148  (a)->family = AF_INET; \
149  (a)->addr_data32[0] = (uint32_t)(p)->ip4h->s_ip_dst.s_addr; \
150  (a)->addr_data32[1] = 0; \
151  (a)->addr_data32[2] = 0; \
152  (a)->addr_data32[3] = 0; \
153  } while (0)
154 
155 /* Set the IPv6 addresses into the Addrs of the Packet.
156  * Make sure p->ip6h is initialized and validated. */
157 #define SET_IPV6_SRC_ADDR(p, a) do { \
158  (a)->family = AF_INET6; \
159  (a)->addr_data32[0] = (p)->ip6h->s_ip6_src[0]; \
160  (a)->addr_data32[1] = (p)->ip6h->s_ip6_src[1]; \
161  (a)->addr_data32[2] = (p)->ip6h->s_ip6_src[2]; \
162  (a)->addr_data32[3] = (p)->ip6h->s_ip6_src[3]; \
163  } while (0)
164 
165 #define SET_IPV6_DST_ADDR(p, a) do { \
166  (a)->family = AF_INET6; \
167  (a)->addr_data32[0] = (p)->ip6h->s_ip6_dst[0]; \
168  (a)->addr_data32[1] = (p)->ip6h->s_ip6_dst[1]; \
169  (a)->addr_data32[2] = (p)->ip6h->s_ip6_dst[2]; \
170  (a)->addr_data32[3] = (p)->ip6h->s_ip6_dst[3]; \
171  } while (0)
172 
173 /* Set the TCP ports into the Ports of the Packet.
174  * Make sure p->tcph is initialized and validated. */
175 #define SET_TCP_SRC_PORT(pkt, prt) do { \
176  SET_PORT(TCP_GET_SRC_PORT((pkt)), *(prt)); \
177  } while (0)
178 
179 #define SET_TCP_DST_PORT(pkt, prt) do { \
180  SET_PORT(TCP_GET_DST_PORT((pkt)), *(prt)); \
181  } while (0)
182 
183 /* Set the UDP ports into the Ports of the Packet.
184  * Make sure p->udph is initialized and validated. */
185 #define SET_UDP_SRC_PORT(pkt, prt) do { \
186  SET_PORT(UDP_GET_SRC_PORT((pkt)), *(prt)); \
187  } while (0)
188 #define SET_UDP_DST_PORT(pkt, prt) do { \
189  SET_PORT(UDP_GET_DST_PORT((pkt)), *(prt)); \
190  } while (0)
191 
192 /* Set the SCTP ports into the Ports of the Packet.
193  * Make sure p->sctph is initialized and validated. */
194 #define SET_SCTP_SRC_PORT(pkt, prt) do { \
195  SET_PORT(SCTP_GET_SRC_PORT((pkt)), *(prt)); \
196  } while (0)
197 
198 #define SET_SCTP_DST_PORT(pkt, prt) do { \
199  SET_PORT(SCTP_GET_DST_PORT((pkt)), *(prt)); \
200  } while (0)
201 
202 
203 #define GET_IPV4_SRC_ADDR_U32(p) ((p)->src.addr_data32[0])
204 #define GET_IPV4_DST_ADDR_U32(p) ((p)->dst.addr_data32[0])
205 #define GET_IPV4_SRC_ADDR_PTR(p) ((p)->src.addr_data32)
206 #define GET_IPV4_DST_ADDR_PTR(p) ((p)->dst.addr_data32)
207 
208 #define GET_IPV6_SRC_IN6ADDR(p) ((p)->src.addr_in6addr)
209 #define GET_IPV6_DST_IN6ADDR(p) ((p)->dst.addr_in6addr)
210 #define GET_IPV6_SRC_ADDR(p) ((p)->src.addr_data32)
211 #define GET_IPV6_DST_ADDR(p) ((p)->dst.addr_data32)
212 #define GET_TCP_SRC_PORT(p) ((p)->sp)
213 #define GET_TCP_DST_PORT(p) ((p)->dp)
214 
215 #define GET_PKT_LEN(p) ((p)->pktlen)
216 #define GET_PKT_DATA(p) ((((p)->ext_pkt) == NULL ) ? (uint8_t *)((p) + 1) : (p)->ext_pkt)
217 #define GET_PKT_DIRECT_DATA(p) (uint8_t *)((p) + 1)
218 #define GET_PKT_DIRECT_MAX_SIZE(p) (default_packet_size)
219 
220 #define SET_PKT_LEN(p, len) do { \
221  (p)->pktlen = (len); \
222  } while (0)
223 
224 
225 /* Port is just a uint16_t */
226 typedef uint16_t Port;
227 #define SET_PORT(v, p) ((p) = (v))
228 #define COPY_PORT(a,b) ((b) = (a))
229 
230 #define CMP_ADDR(a1, a2) \
231  (((a1)->addr_data32[3] == (a2)->addr_data32[3] && \
232  (a1)->addr_data32[2] == (a2)->addr_data32[2] && \
233  (a1)->addr_data32[1] == (a2)->addr_data32[1] && \
234  (a1)->addr_data32[0] == (a2)->addr_data32[0]))
235 #define CMP_PORT(p1, p2) \
236  ((p1) == (p2))
237 
238 /*Given a packet pkt offset to the start of the ip header in a packet
239  *We determine the ip version. */
240 #define IP_GET_RAW_VER(pkt) ((((pkt)[0] & 0xf0) >> 4))
241 
242 #define PKT_IS_IPV4(p) (((p)->ip4h != NULL))
243 #define PKT_IS_IPV6(p) (((p)->ip6h != NULL))
244 #define PKT_IS_TCP(p) (((p)->tcph != NULL))
245 #define PKT_IS_UDP(p) (((p)->udph != NULL))
246 #define PKT_IS_ICMPV4(p) (((p)->icmpv4h != NULL))
247 #define PKT_IS_ICMPV6(p) (((p)->icmpv6h != NULL))
248 #define PKT_IS_TOSERVER(p) (((p)->flowflags & FLOW_PKT_TOSERVER))
249 #define PKT_IS_TOCLIENT(p) (((p)->flowflags & FLOW_PKT_TOCLIENT))
250 
251 #define IPH_IS_VALID(p) (PKT_IS_IPV4((p)) || PKT_IS_IPV6((p)))
252 
253 /* Retrieve proto regardless of IP version */
254 #define IP_GET_IPPROTO(p) \
255  (p->proto ? p->proto : \
256  (PKT_IS_IPV4((p))? IPV4_GET_IPPROTO((p)) : (PKT_IS_IPV6((p))? IPV6_GET_L4PROTO((p)) : 0)))
257 
258 /* structure to store the sids/gids/etc the detection engine
259  * found in this packet */
260 typedef struct PacketAlert_ {
261  SigIntId num; /* Internal num, used for sorting */
262  uint8_t action; /* Internal num, used for thresholding */
263  uint8_t flags;
264  const struct Signature_ *s;
265  uint64_t tx_id; /* Used for sorting */
266  int64_t frame_id;
268 
269 /* flag to indicate the rule action (drop/pass) needs to be applied to the flow */
270 #define PACKET_ALERT_FLAG_APPLY_ACTION_TO_FLOW 0x1
271 /** alert was generated based on state */
272 #define PACKET_ALERT_FLAG_STATE_MATCH 0x02
273 /** alert was generated based on stream */
274 #define PACKET_ALERT_FLAG_STREAM_MATCH 0x04
275 /** alert is in a tx, tx_id set */
276 #define PACKET_ALERT_FLAG_TX 0x08
277 /** action was changed by rate_filter */
278 #define PACKET_ALERT_RATE_FILTER_MODIFIED 0x10
279 /** alert is in a frame, frame_id set */
280 #define PACKET_ALERT_FLAG_FRAME 0x20
281 
282 extern uint16_t packet_alert_max;
283 #define PACKET_ALERT_MAX 15
284 
285 typedef struct PacketAlerts_ {
286  uint16_t cnt;
287  uint16_t discarded;
288  uint16_t suppressed;
290  /* single pa used when we're dropping,
291  * so we can log it out in the drop log. */
294 
296 
297 void PacketAlertFree(PacketAlert *pa);
298 
299 /** number of decoder events we support per packet. Power of 2 minus 1
300  * for memory layout */
301 #define PACKET_ENGINE_EVENT_MAX 15
302 
303 /** data structure to store decoder, defrag and stream events */
304 typedef struct PacketEngineEvents_ {
305  uint8_t cnt; /**< number of events */
306  uint8_t events[PACKET_ENGINE_EVENT_MAX]; /**< array of events */
308 
309 typedef struct PktVar_ {
310  uint32_t id;
311  struct PktVar_ *next; /* right now just implement this as a list,
312  * in the long run we have thing of something
313  * faster. */
314  uint16_t key_len;
315  uint16_t value_len;
316  uint8_t *key;
317  uint8_t *value;
319 
320 #ifdef PROFILING
321 
322 /** \brief Per TMM stats storage */
323 typedef struct PktProfilingTmmData_ {
324  uint64_t ticks_start;
325  uint64_t ticks_end;
326 #ifdef PROFILE_LOCKING
327  uint64_t mutex_lock_cnt;
328  uint64_t mutex_lock_wait_ticks;
329  uint64_t mutex_lock_contention;
330  uint64_t spin_lock_cnt;
331  uint64_t spin_lock_wait_ticks;
332  uint64_t spin_lock_contention;
333  uint64_t rww_lock_cnt;
334  uint64_t rww_lock_wait_ticks;
335  uint64_t rww_lock_contention;
336  uint64_t rwr_lock_cnt;
337  uint64_t rwr_lock_wait_ticks;
338  uint64_t rwr_lock_contention;
339 #endif
341 
342 typedef struct PktProfilingData_ {
343  uint64_t ticks_start;
344  uint64_t ticks_end;
346 
347 typedef struct PktProfilingDetectData_ {
348  uint64_t ticks_start;
349  uint64_t ticks_end;
350  uint64_t ticks_spent;
352 
353 typedef struct PktProfilingAppData_ {
354  uint64_t ticks_spent;
356 
357 typedef struct PktProfilingLoggerData_ {
358  uint64_t ticks_start;
359  uint64_t ticks_end;
360  uint64_t ticks_spent;
362 
364  uint64_t ticks_spent;
366 
369  uint32_t size; /**< array size */
371 
372 /** \brief Per pkt stats storage */
373 typedef struct PktProfiling_ {
374  uint64_t ticks_start;
375  uint64_t ticks_end;
376 
382  uint64_t proto_detect;
384 
385 #endif /* PROFILING */
386 
397  PKT_DROP_REASON_RULES_THRESHOLD, /**< detection_filter in action */
401  PKT_DROP_REASON_NFQ_ERROR, /**< no nfq verdict, must be error */
402  PKT_DROP_REASON_INNER_PACKET, /**< drop issued by inner (tunnel) packet */
403 };
404 
405 /* forward declaration since Packet struct definition requires this */
406 struct PacketQueue_;
407 
408 /* sizes of the members:
409  * src: 17 bytes
410  * dst: 17 bytes
411  * sp/type: 1 byte
412  * dp/code: 1 byte
413  * proto: 1 byte
414  * recurs: 1 byte
415  *
416  * sum of above: 38 bytes
417  *
418  * flow ptr: 4/8 bytes
419  * flags: 1 byte
420  * flowflags: 1 byte
421  *
422  * sum of above 44/48 bytes
423  */
424 typedef struct Packet_
425 {
426  /* Addresses, Ports and protocol
427  * these are on top so we can use
428  * the Packet as a hash key */
431  union {
433  // icmp type and code of this packet
434  struct {
435  uint8_t type;
436  uint8_t code;
438  };
439  union {
441  // icmp type and code of the expected counterpart (for flows)
442  struct {
443  uint8_t type;
444  uint8_t code;
446  };
447  uint8_t proto;
448  /* make sure we can't be attacked on when the tunneled packet
449  * has the exact same tuple as the lower levels */
451 
452  uint16_t vlan_id[2];
453  uint8_t vlan_idx;
454 
455  /* flow */
456  uint8_t flowflags;
457  /* coccinelle: Packet:flowflags:FLOW_PKT_ */
458 
459  /* Pkt Flags */
460  uint32_t flags;
461 
462  struct Flow_ *flow;
463 
464  /* raw hash value for looking up the flow, will need to modulated to the
465  * hash size still */
466  uint32_t flow_hash;
467 
468  struct timeval ts;
469 
470  union {
471  /* nfq stuff */
472 #ifdef HAVE_NFLOG
473  NFLOGPacketVars nflog_v;
474 #endif /* HAVE_NFLOG */
475 #ifdef NFQ
477 #endif /* NFQ */
478 #ifdef IPFW
480 #endif /* IPFW */
481 #ifdef AF_PACKET
482  AFPPacketVars afp_v;
483 #endif
484 #ifdef HAVE_NETMAP
485  NetmapPacketVars netmap_v;
486 #endif
487 #ifdef HAVE_PFRING
488 #ifdef HAVE_PF_RING_FLOW_OFFLOAD
489  PfringPacketVars pfring_v;
490 #endif
491 #endif
492 #ifdef WINDIVERT
493  WinDivertPacketVars windivert_v;
494 #endif /* WINDIVERT */
495 #ifdef HAVE_DPDK
496  DPDKPacketVars dpdk_v;
497 #endif
498 #ifdef HAVE_NAPATECH
500 #endif
501  /* A chunk of memory that a plugin can use for its packet vars. */
503 
504  /** libpcap vars: shared by Pcap Live mode and Pcap File mode */
506  };
507 
508  /** The release function for packet structure and data */
509  void (*ReleasePacket)(struct Packet_ *);
510  /** The function triggering bypass the flow in the capture method.
511  * Return 1 for success and 0 on error */
512  int (*BypassPacketsFlow)(struct Packet_ *);
513 
514  /* pkt vars */
516 
517  /* header pointers */
518  EthernetHdr *ethh;
519 
520  /* Checksum for IP packets. */
522  /* Check sum for TCP, UDP or ICMP packets */
524 
526 
528 
529  /* IPv4 and IPv6 are mutually exclusive */
530  union {
532  struct {
535  };
536  };
537  /* Can only be one of TCP, UDP, ICMP at any given time */
538  union {
543 #define tcpvars l4vars.tcpvars
544 #define icmpv4vars l4vars.icmpv4vars
545 #define icmpv6vars l4vars.icmpv6vars
546 
547  TCPHdr *tcph;
548 
549  UDPHdr *udph;
550 
551  SCTPHdr *sctph;
552 
553  ESPHdr *esph;
554 
555  ICMPV4Hdr *icmpv4h;
556 
558 
559  PPPHdr *ppph;
561  PPPOEDiscoveryHdr *pppoedh;
562 
563  GREHdr *greh;
564 
565  /* ptr to the payload of the packet
566  * with it's length. */
567  uint8_t *payload;
568  uint16_t payload_len;
569 
570  /* IPS action to take */
571  uint8_t action;
572 
573  uint8_t pkt_src;
574 
575  /* storage: set to pointer to heap and extended via allocation if necessary */
576  uint32_t pktlen;
577  uint8_t *ext_pkt;
578 
579  /* Incoming interface */
581 
583 
584  struct Host_ *host_src;
585  struct Host_ *host_dst;
586 
587  /** packet number in the pcap file, matches wireshark */
588  uint64_t pcap_cnt;
589 
590 
591  /* engine events */
593 
595 
596  /* double linked list ptrs */
597  struct Packet_ *next;
598  struct Packet_ *prev;
599 
600  /** data linktype in host order */
601  int datalink;
602 
603  /* count decoded layers of packet : too many layers
604  * cause issues with performance and stability (stack exhaustion)
605  */
607 
608  /* enum PacketDropReason::PKT_DROP_REASON_* as uint8_t for compactness */
609  uint8_t drop_reason;
610 
611  /* tunnel/encapsulation handling */
612  struct Packet_ *root; /* in case of tunnel this is a ptr
613  * to the 'real' packet, the one we
614  * need to set the verdict on --
615  * It should always point to the lowest
616  * packet in a encapsulated packet */
617 
618  /* ready to set verdict counter, only set in root */
619  uint16_t tunnel_rtv_cnt;
620  /* tunnel packet ref count */
621  uint16_t tunnel_tpr_cnt;
622 
623  /** tenant id for this packet, if any. If 0 then no tenant was assigned. */
624  uint32_t tenant_id;
625 
626  /* The Packet pool from which this packet was allocated. Used when returning
627  * the packet to its owner's stack. If NULL, then allocated with malloc.
628  */
629  struct PktPool_ *pool;
630 
631 #ifdef PROFILING
633 #endif
634  /* things in the packet that live beyond a reinit */
635  struct {
636  /** lock to protect access to:
637  * - tunnel_rtv_cnt
638  * - tunnel_tpr_cnt
639  * - nfq_v.mark
640  * - flags
641  */
645 
646 /** highest mtu of the interfaces we monitor */
647 extern int g_default_mtu;
648 #define DEFAULT_MTU 1500
649 #define MINIMUM_MTU 68 /**< ipv4 minimum: rfc791 */
650 
651 #define DEFAULT_PACKET_SIZE (DEFAULT_MTU + ETHERNET_HEADER_LEN)
652 /* storage: maximum ip packet size + link header */
653 #define MAX_PAYLOAD_SIZE (IPV6_HEADER_LEN + 65536 + 28)
654 extern uint32_t default_packet_size;
655 #define SIZE_OF_PACKET (default_packet_size + sizeof(Packet))
656 
657 /** \brief Structure to hold thread specific data for all decode modules */
658 typedef struct DecodeThreadVars_
659 {
660  /** Specific context for udp protocol detection (here atm) */
662 
663  /** stats/counters */
664  uint16_t counter_pkts;
665  uint16_t counter_bytes;
670 
671  uint16_t counter_invalid;
672 
673  uint16_t counter_eth;
674  uint16_t counter_chdlc;
675  uint16_t counter_ipv4;
676  uint16_t counter_ipv6;
677  uint16_t counter_tcp;
678  uint16_t counter_udp;
679  uint16_t counter_icmpv4;
680  uint16_t counter_icmpv6;
681 
682  uint16_t counter_sll;
683  uint16_t counter_raw;
684  uint16_t counter_null;
685  uint16_t counter_sctp;
686  uint16_t counter_esp;
687  uint16_t counter_ppp;
688  uint16_t counter_geneve;
689  uint16_t counter_gre;
690  uint16_t counter_vlan;
692  uint16_t counter_vxlan;
693  uint16_t counter_vntag;
695  uint16_t counter_pppoe;
696  uint16_t counter_teredo;
697  uint16_t counter_mpls;
700  uint16_t counter_erspan;
701  uint16_t counter_nsh;
702 
703  /** frag stats - defrag runs in the context of the decoder. */
711 
713 
727 
732 
734 
735  /* thread data for flow logging api: only used at forced
736  * flow recycle during lookups */
738 
740 
741 typedef struct CaptureStats_ {
742 
747 
749 
750 void CaptureStatsUpdate(ThreadVars *tv, CaptureStats *s, const Packet *p);
752 
753 #define PACKET_CLEAR_L4VARS(p) do { \
754  memset(&(p)->l4vars, 0x00, sizeof((p)->l4vars)); \
755  } while (0)
756 
757 /**
758  * \brief reset these to -1(indicates that the packet is fresh from the queue)
759  */
760 #define PACKET_RESET_CHECKSUMS(p) do { \
761  (p)->level3_comp_csum = -1; \
762  (p)->level4_comp_csum = -1; \
763  } while (0)
764 
765 /* if p uses extended data, free them */
766 #define PACKET_FREE_EXTDATA(p) do { \
767  if ((p)->ext_pkt) { \
768  if (!((p)->flags & PKT_ZERO_COPY)) { \
769  SCFree((p)->ext_pkt); \
770  } \
771  (p)->ext_pkt = NULL; \
772  } \
773  } while(0)
774 
775 #define TUNNEL_INCR_PKT_RTV_NOLOCK(p) do { \
776  ((p)->root ? (p)->root->tunnel_rtv_cnt++ : (p)->tunnel_rtv_cnt++); \
777  } while (0)
778 
779 static inline void TUNNEL_INCR_PKT_TPR(Packet *p)
780 {
781  Packet *rp = p->root ? p->root : p;
783  rp->tunnel_tpr_cnt++;
785 }
786 
787 #define TUNNEL_PKT_RTV(p) ((p)->root ? (p)->root->tunnel_rtv_cnt : (p)->tunnel_rtv_cnt)
788 #define TUNNEL_PKT_TPR(p) ((p)->root ? (p)->root->tunnel_tpr_cnt : (p)->tunnel_tpr_cnt)
789 
790 #define IS_TUNNEL_PKT(p) (((p)->flags & PKT_TUNNEL))
791 #define SET_TUNNEL_PKT(p) ((p)->flags |= PKT_TUNNEL)
792 #define UNSET_TUNNEL_PKT(p) ((p)->flags &= ~PKT_TUNNEL)
793 #define IS_TUNNEL_ROOT_PKT(p) (IS_TUNNEL_PKT(p) && (p)->root == NULL)
794 
795 #define IS_TUNNEL_PKT_VERDICTED(p) (((p)->flags & PKT_TUNNEL_VERDICTED))
796 #define SET_TUNNEL_PKT_VERDICTED(p) ((p)->flags |= PKT_TUNNEL_VERDICTED)
797 
805  DECODE_TUNNEL_IPV6_TEREDO, /**< separate protocol for stricter error handling */
809 };
810 
812  const uint8_t *pkt, uint32_t len, enum DecodeTunnelProto proto);
813 Packet *PacketDefragPktSetup(Packet *parent, const uint8_t *pkt, uint32_t len, uint8_t proto);
814 void PacketDefragPktSetupParent(Packet *parent);
821 void PacketFree(Packet *p);
822 void PacketFreeOrRelease(Packet *p);
823 int PacketCallocExtPkt(Packet *p, int datalen);
824 int PacketCopyData(Packet *p, const uint8_t *pktdata, uint32_t pktlen);
825 int PacketSetData(Packet *p, const uint8_t *pktdata, uint32_t pktlen);
826 int PacketCopyDataOffset(Packet *p, uint32_t offset, const uint8_t *data, uint32_t datalen);
827 const char *PktSrcToString(enum PktSrcEnum pkt_src);
829 void PacketSwap(Packet *p);
830 
834  const DecodeThreadVars *dtv, const Packet *p);
835 const char *PacketDropReasonToString(enum PacketDropReason r);
836 
837 /* decoder functions */
838 int DecodeEthernet(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
839 int DecodeSll(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
840 int DecodePPP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
841 int DecodePPPOESession(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
842 int DecodePPPOEDiscovery(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
843 int DecodeNull(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
844 int DecodeRaw(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
845 int DecodeIPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
846 int DecodeIPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
847 int DecodeICMPV4(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
848 int DecodeICMPV6(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
849 int DecodeTCP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
850 int DecodeUDP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
851 int DecodeSCTP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
852 int DecodeESP(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint16_t);
853 int DecodeGRE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
854 int DecodeVLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
855 int DecodeVNTag(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
856 int DecodeIEEE8021ah(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
857 int DecodeGeneve(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
858 int DecodeVXLAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
859 int DecodeMPLS(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
860 int DecodeERSPAN(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
861 int DecodeERSPANTypeI(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
862 int DecodeCHDLC(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
863 int DecodeTEMPLATE(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
864 int DecodeNSH(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t);
865 
866 #ifdef UNITTESTS
867 void DecodeIPV6FragHeader(Packet *p, const uint8_t *pkt,
868  uint16_t hdrextlen, uint16_t plen,
869  uint16_t prev_hdrextlen);
870 #endif
871 
872 void AddressDebugPrint(Address *);
873 
875  const uint8_t *pkt, uint32_t len);
876 void DecodeGlobalConfig(void);
877 void PacketAlertGetMaxConfig(void);
878 void DecodeUnregisterCounters(void);
879 
880 #define ENGINE_SET_EVENT(p, e) do { \
881  SCLogDebug("p %p event %d", (p), e); \
882  if ((p)->events.cnt < PACKET_ENGINE_EVENT_MAX) { \
883  (p)->events.events[(p)->events.cnt] = e; \
884  (p)->events.cnt++; \
885  } \
886 } while(0)
887 
888 #define ENGINE_SET_INVALID_EVENT(p, e) do { \
889  p->flags |= PKT_IS_INVALID; \
890  ENGINE_SET_EVENT(p, e); \
891 } while(0)
892 
893 
894 
895 #define ENGINE_ISSET_EVENT(p, e) ({ \
896  int r = 0; \
897  uint8_t u; \
898  for (u = 0; u < (p)->events.cnt; u++) { \
899  if ((p)->events.events[u] == (e)) { \
900  r = 1; \
901  break; \
902  } \
903  } \
904  r; \
905 })
906 
907 #ifndef IPPROTO_IPIP
908 #define IPPROTO_IPIP 4
909 #endif
910 
911 /* older libcs don't contain a def for IPPROTO_DCCP
912  * inside of <netinet/in.h>
913  * if it isn't defined let's define it here.
914  */
915 #ifndef IPPROTO_DCCP
916 #define IPPROTO_DCCP 33
917 #endif
918 
919 /* older libcs don't contain a def for IPPROTO_SCTP
920  * inside of <netinet/in.h>
921  * if it isn't defined let's define it here.
922  */
923 #ifndef IPPROTO_SCTP
924 #define IPPROTO_SCTP 132
925 #endif
926 
927 #ifndef IPPROTO_MH
928 #define IPPROTO_MH 135
929 #endif
930 
931 /* Host Identity Protocol (rfc 5201) */
932 #ifndef IPPROTO_HIP
933 #define IPPROTO_HIP 139
934 #endif
935 
936 #ifndef IPPROTO_SHIM6
937 #define IPPROTO_SHIM6 140
938 #endif
939 
940 /* pcap provides this, but we don't want to depend on libpcap */
941 #ifndef DLT_EN10MB
942 #define DLT_EN10MB 1
943 #endif
944 
945 #ifndef DLT_C_HDLC
946 #define DLT_C_HDLC 104
947 #endif
948 
949 /* taken from pcap's bpf.h */
950 #ifndef DLT_RAW
951 #ifdef __OpenBSD__
952 #define DLT_RAW 14 /* raw IP */
953 #else
954 #define DLT_RAW 12 /* raw IP */
955 #endif
956 #endif
957 
958 #ifndef DLT_NULL
959 #define DLT_NULL 0
960 #endif
961 
962 /** libpcap shows us the way to linktype codes
963  * \todo we need more & maybe put them in a separate file? */
964 #define LINKTYPE_NULL DLT_NULL
965 #define LINKTYPE_ETHERNET DLT_EN10MB
966 #define LINKTYPE_LINUX_SLL 113
967 #define LINKTYPE_PPP 9
968 #define LINKTYPE_RAW DLT_RAW
969 /* http://www.tcpdump.org/linktypes.html defines DLT_RAW as 101, yet others don't.
970  * Libpcap on at least OpenBSD returns 101 as datalink type for RAW pcaps though. */
971 #define LINKTYPE_RAW2 101
972 #define LINKTYPE_IPV4 228
973 #define LINKTYPE_GRE_OVER_IP 778
974 #define LINKTYPE_CISCO_HDLC DLT_C_HDLC
975 #define PPP_OVER_GRE 11
976 #define VLAN_OVER_GRE 13
977 
978 /* Packet Flags */
979 
980 /** Flag to indicate that packet header or contents should not be inspected */
981 #define PKT_NOPACKET_INSPECTION BIT_U32(0)
982 // vacancy
983 
984 /** Flag to indicate that packet contents should not be inspected */
985 #define PKT_NOPAYLOAD_INSPECTION BIT_U32(2)
986 // vacancy
987 
988 /** Packet has matched a tag */
989 #define PKT_HAS_TAG BIT_U32(4)
990 /** Packet payload was added to reassembled stream */
991 #define PKT_STREAM_ADD BIT_U32(5)
992 /** Packet is part of established stream */
993 #define PKT_STREAM_EST BIT_U32(6)
994 /** Stream is in eof state */
995 #define PKT_STREAM_EOF BIT_U32(7)
996 #define PKT_HAS_FLOW BIT_U32(8)
997 /** Pseudo packet to end the stream */
998 #define PKT_PSEUDO_STREAM_END BIT_U32(9)
999 /** Packet is modified by the stream engine, we need to recalc the csum and \
1000  reinject/replace */
1001 #define PKT_STREAM_MODIFIED BIT_U32(10)
1002 /** Packet mark is modified */
1003 #define PKT_MARK_MODIFIED BIT_U32(11)
1004 /** Exclude packet from pcap logging as it's part of a stream that has reassembly \
1005  depth reached. */
1006 #define PKT_STREAM_NOPCAPLOG BIT_U32(12)
1008 #define PKT_TUNNEL BIT_U32(13)
1009 #define PKT_TUNNEL_VERDICTED BIT_U32(14)
1011 /** Packet checksum is not computed (TX packet for example) */
1012 #define PKT_IGNORE_CHECKSUM BIT_U32(15)
1013 /** Packet comes from zero copy (ext_pkt must not be freed) */
1014 #define PKT_ZERO_COPY BIT_U32(16)
1016 #define PKT_HOST_SRC_LOOKED_UP BIT_U32(17)
1017 #define PKT_HOST_DST_LOOKED_UP BIT_U32(18)
1019 /** Packet is a fragment */
1020 #define PKT_IS_FRAGMENT BIT_U32(19)
1021 #define PKT_IS_INVALID BIT_U32(20)
1022 #define PKT_PROFILE BIT_U32(21)
1024 /** indication by decoder that it feels the packet should be handled by
1025  * flow engine: Packet::flow_hash will be set */
1026 #define PKT_WANTS_FLOW BIT_U32(22)
1028 /** protocol detection done */
1029 #define PKT_PROTO_DETECT_TS_DONE BIT_U32(23)
1030 #define PKT_PROTO_DETECT_TC_DONE BIT_U32(24)
1032 #define PKT_REBUILT_FRAGMENT \
1033  BIT_U32(25) /**< Packet is rebuilt from \
1034  * fragments. */
1035 #define PKT_DETECT_HAS_STREAMDATA \
1036  BIT_U32(26) /**< Set by Detect() if raw stream data is available. */
1038 #define PKT_PSEUDO_DETECTLOG_FLUSH BIT_U32(27) /**< Detect/log flush for protocol upgrade */
1040 /** Packet is part of stream in known bad condition (loss, wrong thread),
1041  * so flag it for not setting stream events */
1042 #define PKT_STREAM_NO_EVENTS BIT_U32(28)
1044 /** We had no alert on flow before this packet */
1045 #define PKT_FIRST_ALERTS BIT_U32(29)
1046 #define PKT_FIRST_TAG BIT_U32(30)
1048 /** Packet updated the app-layer. */
1049 #define PKT_APPLAYER_UPDATE BIT_U32(31)
1051 /** \brief return 1 if the packet is a pseudo packet */
1052 #define PKT_IS_PSEUDOPKT(p) \
1053  ((p)->flags & (PKT_PSEUDO_STREAM_END|PKT_PSEUDO_DETECTLOG_FLUSH))
1054 
1055 #define PKT_SET_SRC(p, src_val) ((p)->pkt_src = src_val)
1057 #define PKT_DEFAULT_MAX_DECODED_LAYERS 16
1058 extern uint8_t decoder_max_layers;
1059 
1060 static inline bool PacketIncreaseCheckLayers(Packet *p)
1061 {
1062  p->nb_decoded_layers++;
1065  return false;
1066  }
1067  return true;
1068 }
1069 
1070 /** \brief Set the No payload inspection Flag for the packet.
1071  *
1072  * \param p Packet to set the flag in
1073  */
1074 static inline void DecodeSetNoPayloadInspectionFlag(Packet *p)
1075 {
1077 }
1078 
1079 /** \brief Set the No packet inspection Flag for the packet.
1080  *
1081  * \param p Packet to set the flag in
1082  */
1083 static inline void DecodeSetNoPacketInspectionFlag(Packet *p)
1084 {
1086 }
1087 
1088 /** \brief return true if *this* packet needs to trigger a verdict.
1089  *
1090  * If we have the root packet, and we have none outstanding,
1091  * we can verdict now.
1092  *
1093  * If we have a upper layer packet, it's the only one and root
1094  * is already processed, we can verdict now.
1095  *
1096  * Otherwise, a future packet will issue the verdict.
1097  */
1098 static inline bool VerdictTunnelPacket(Packet *p)
1099 {
1100  bool verdict = true;
1102  SCSpinLock(lock);
1103  const uint16_t outstanding = TUNNEL_PKT_TPR(p) - TUNNEL_PKT_RTV(p);
1104  SCLogDebug("tunnel: outstanding %u", outstanding);
1105 
1106  /* if there are packets outstanding, we won't verdict this one */
1107  if (IS_TUNNEL_ROOT_PKT(p) && !IS_TUNNEL_PKT_VERDICTED(p) && !outstanding) {
1108  // verdict
1109  SCLogDebug("root %p: verdict", p);
1110  } else if (!IS_TUNNEL_ROOT_PKT(p) && outstanding == 1 && p->root && IS_TUNNEL_PKT_VERDICTED(p->root)) {
1111  // verdict
1112  SCLogDebug("tunnel %p: verdict", p);
1113  } else {
1114  verdict = false;
1115  }
1116  SCSpinUnlock(lock);
1117  return verdict;
1118 }
1119 
1120 static inline void DecodeLinkLayer(ThreadVars *tv, DecodeThreadVars *dtv,
1121  const int datalink, Packet *p, const uint8_t *data, const uint32_t len)
1122 {
1123  /* call the decoder */
1124  switch (datalink) {
1125  case LINKTYPE_ETHERNET:
1126  DecodeEthernet(tv, dtv, p, data, len);
1127  break;
1128  case LINKTYPE_LINUX_SLL:
1129  DecodeSll(tv, dtv, p, data, len);
1130  break;
1131  case LINKTYPE_PPP:
1132  DecodePPP(tv, dtv, p, data, len);
1133  break;
1134  case LINKTYPE_RAW:
1135  case LINKTYPE_GRE_OVER_IP:
1136  DecodeRaw(tv, dtv, p, data, len);
1137  break;
1138  case LINKTYPE_NULL:
1139  DecodeNull(tv, dtv, p, data, len);
1140  break;
1141  case LINKTYPE_CISCO_HDLC:
1142  DecodeCHDLC(tv, dtv, p, data, len);
1143  break;
1144  default:
1145  SCLogError(SC_ERR_DATALINK_UNIMPLEMENTED, "datalink type "
1146  "%"PRId32" not yet supported", datalink);
1147  break;
1148  }
1149 }
1150 
1151 /** \brief decode network layer
1152  * \retval bool true if successful, false if unknown */
1153 static inline bool DecodeNetworkLayer(ThreadVars *tv, DecodeThreadVars *dtv,
1154  const uint16_t proto, Packet *p, const uint8_t *data, const uint32_t len)
1155 {
1156  switch (proto) {
1157  case ETHERNET_TYPE_IP: {
1158  uint16_t ip_len = (len < USHRT_MAX) ? (uint16_t)len : (uint16_t)USHRT_MAX;
1159  DecodeIPV4(tv, dtv, p, data, ip_len);
1160  break;
1161  }
1162  case ETHERNET_TYPE_IPV6: {
1163  uint16_t ip_len = (len < USHRT_MAX) ? (uint16_t)len : (uint16_t)USHRT_MAX;
1164  DecodeIPV6(tv, dtv, p, data, ip_len);
1165  break;
1166  }
1168  DecodePPPOESession(tv, dtv, p, data, len);
1169  break;
1171  DecodePPPOEDiscovery(tv, dtv, p, data, len);
1172  break;
1173  case ETHERNET_TYPE_VLAN:
1174  case ETHERNET_TYPE_8021AD:
1176  if (p->vlan_idx >= 2) {
1178  } else {
1179  DecodeVLAN(tv, dtv, p, data, len);
1180  }
1181  break;
1182  case ETHERNET_TYPE_8021AH:
1183  DecodeIEEE8021ah(tv, dtv, p, data, len);
1184  break;
1185  case ETHERNET_TYPE_ARP:
1186  break;
1189  DecodeMPLS(tv, dtv, p, data, len);
1190  break;
1191  case ETHERNET_TYPE_DCE:
1194  } else {
1195  DecodeEthernet(tv, dtv, p, data, len);
1196  }
1197  break;
1198  case ETHERNET_TYPE_VNTAG:
1199  DecodeVNTag(tv, dtv, p, data, len);
1200  break;
1201  case ETHERNET_TYPE_NSH:
1202  DecodeNSH(tv, dtv, p, data, len);
1203  break;
1204  default:
1205  SCLogDebug("unknown ether type: %" PRIx16 "", proto);
1206  return false;
1207  }
1208  return true;
1209 }
1210 
1211 #endif /* __DECODE_H__ */
CaptureStats
struct CaptureStats_ CaptureStats
suricata-plugin.h
ENGINE_SET_EVENT
#define ENGINE_SET_EVENT(p, e)
Definition: decode.h:880
DecodeThreadVars_::counter_flow_get_used_eval_busy
uint16_t counter_flow_get_used_eval_busy
Definition: decode.h:725
PKT_DROP_REASON_DEFRAG_MEMCAP
@ PKT_DROP_REASON_DEFRAG_MEMCAP
Definition: decode.h:391
Packet_::greh
GREHdr * greh
Definition: decode.h:563
PKT_DROP_REASON_DEFRAG_ERROR
@ PKT_DROP_REASON_DEFRAG_ERROR
Definition: decode.h:390
decode-ethernet.h
decode-tcp.h
DecodeThreadVars_::counter_defrag_ipv4_reassembled
uint16_t counter_defrag_ipv4_reassembled
Definition: decode.h:705
Packet_::proto
uint8_t proto
Definition: decode.h:447
spin_lock_cnt
thread_local uint64_t spin_lock_cnt
PKT_DROP_REASON_RULES_THRESHOLD
@ PKT_DROP_REASON_RULES_THRESHOLD
Definition: decode.h:397
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:76
DecodeGeneve
int DecodeGeneve(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-geneve.c:186
source-nflog.h
decode-mpls.h
DecodeThreadVars_::counter_flow_udp
uint16_t counter_flow_udp
Definition: decode.h:718
len
uint8_t len
Definition: app-layer-dnp3.h:2
DecodeThreadVars_::counter_bytes
uint16_t counter_bytes
Definition: decode.h:665
Packet_::icmp_s
struct Packet_::@33::@43 icmp_s
DECODE_TUNNEL_IPV6
@ DECODE_TUNNEL_IPV6
Definition: decode.h:804
source-pcap.h
CaptureStats_::counter_ips_blocked
uint16_t counter_ips_blocked
Definition: decode.h:744
PktProfilingData_::ticks_end
uint64_t ticks_end
Definition: decode.h:344
PacketAlert_::s
const struct Signature_ * s
Definition: decode.h:264
DecodeThreadVars_::counter_eth
uint16_t counter_eth
Definition: decode.h:673
IPV4Vars_
Definition: decode-ipv4.h:174
DecodeThreadVars_::counter_flow_active
uint16_t counter_flow_active
Definition: decode.h:716
offset
uint64_t offset
Definition: util-streaming-buffer.h:0
Packet_::sctph
SCTPHdr * sctph
Definition: decode.h:551
NapatechPacketVars_
Definition: util-napatech.h:30
Packet_::code
uint8_t code
Definition: decode.h:436
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:719
VLAN_HEADER_TOO_MANY_LAYERS
@ VLAN_HEADER_TOO_MANY_LAYERS
Definition: decode-events.h:146
DecodeThreadVars_::counter_vxlan
uint16_t counter_vxlan
Definition: decode.h:692
DecodeThreadVars_::counter_max_pkt_size
uint16_t counter_max_pkt_size
Definition: decode.h:667
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:452
PacketBypassCallback
void PacketBypassCallback(Packet *p)
Definition: decode.c:446
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:666
PktProfiling_
Per pkt stats storage.
Definition: decode.h:373
Address_::address_un_data16
uint16_t address_un_data16[8]
Definition: decode.h:115
PktProfilingPrefilterData_::engines
PktProfilingPrefilterEngine * engines
Definition: decode.h:368
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:117
unlikely
#define unlikely(expr)
Definition: util-optimize.h:35
PKT_DROP_REASON_STREAM_MEMCAP
@ PKT_DROP_REASON_STREAM_MEMCAP
Definition: decode.h:399
PktProfilingTmmData_
Per TMM stats storage.
Definition: decode.h:323
IPV6ExtHdrs_
Definition: decode-ipv6.h:215
PktPool_
Definition: tmqh-packetpool.h:39
Packet_::host_src
struct Host_ * host_src
Definition: decode.h:584
PKT_DROP_REASON_FLOW_MEMCAP
@ PKT_DROP_REASON_FLOW_MEMCAP
Definition: decode.h:392
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:306
CaptureStats_
Definition: decode.h:741
DECODE_TUNNEL_IPV6_TEREDO
@ DECODE_TUNNEL_IPV6_TEREDO
Definition: decode.h:805
SCLogDebug
#define SCLogDebug(...)
Definition: util-debug.h:296
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:588
PktProfiling_::ticks_end
uint64_t ticks_end
Definition: decode.h:375
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:731
PacketDefragPktSetup
Packet * PacketDefragPktSetup(Packet *parent, const uint8_t *pkt, uint32_t len, uint8_t proto)
Setup a pseudo packet (reassembled frags)
Definition: decode.c:390
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:567
PacketAlerts_::cnt
uint16_t cnt
Definition: decode.h:286
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:460
decode-udp.h
Packet_::action
uint8_t action
Definition: decode.h:571
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:693
Packet_::vlan_idx
uint8_t vlan_idx
Definition: decode.h:453
Flow_
Flow data structure.
Definition: flow.h:356
DecodeThreadVars_::counter_flow_get_used_eval
uint16_t counter_flow_get_used_eval
Definition: decode.h:723
LiveDevice_
Definition: util-device.h:39
PROF_DETECT_SIZE
@ PROF_DETECT_SIZE
Definition: suricata-common.h:445
Packet_::l4vars
union Packet_::@41 l4vars
PktVar_::next
struct PktVar_ * next
Definition: decode.h:311
DecoderFunc
int(* DecoderFunc)(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p, const uint8_t *pkt, uint32_t len)
Definition: decode.h:874
PktProfilingTmmData_::ticks_end
uint64_t ticks_end
Definition: decode.h:325
Packet_::ipfw_v
IPFWPacketVars ipfw_v
Definition: decode.h:479
Packet_::pool
struct PktPool_ * pool
Definition: decode.h:629
Packet_::ip4vars
IPV4Vars ip4vars
Definition: decode.h:531
IS_TUNNEL_ROOT_PKT
#define IS_TUNNEL_ROOT_PKT(p)
Definition: decode.h:793
CHECKSUM_VALIDATION_RXONLY
@ CHECKSUM_VALIDATION_RXONLY
Definition: decode.h:49
Packet_::ip6vars
IPV6Vars ip6vars
Definition: decode.h:533
DECODE_TUNNEL_ERSPANI
@ DECODE_TUNNEL_ERSPANI
Definition: decode.h:801
PacketAlerts_::alerts
PacketAlert * alerts
Definition: decode.h:289
LINKTYPE_LINUX_SLL
#define LINKTYPE_LINUX_SLL
Definition: decode.h:966
PktProfilingTmmData
struct PktProfilingTmmData_ PktProfilingTmmData
Per TMM stats storage.
DecodeThreadVars_::counter_teredo
uint16_t counter_teredo
Definition: decode.h:696
DecodeThreadVars_::counter_erspan
uint16_t counter_erspan
Definition: decode.h:700
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:123
AppLayerDecoderEventsResetEvents
void AppLayerDecoderEventsResetEvents(AppLayerDecoderEvents *events)
Definition: app-layer-events.c:123
Packet_::pppoesh
PPPOESessionHdr * pppoesh
Definition: decode.h:560
DecodeThreadVars_::counter_raw
uint16_t counter_raw
Definition: decode.h:683
DecodeThreadVars
struct DecodeThreadVars_ DecodeThreadVars
Structure to hold thread specific data for all decode modules.
PktProfilingPrefilterData_
Definition: decode.h:367
SCSpinLock
#define SCSpinLock
Definition: threads-debug.h:235
PacketAlerts_::drop
PacketAlert drop
Definition: decode.h:292
DecodeVNTag
int DecodeVNTag(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Definition: decode-vntag.c:52
Address_
Definition: decode.h:111
Address_::address
union Address_::@32 address
CHECKSUM_VALIDATION_DISABLE
@ CHECKSUM_VALIDATION_DISABLE
Definition: decode.h:46
DecodeThreadVars_::counter_flow_tcp
uint16_t counter_flow_tcp
Definition: decode.h:717
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:147
Address_::address_un_data32
uint32_t address_un_data32[4]
Definition: decode.h:114
Packet_::tcpvars
TCPVars tcpvars
Definition: decode.h:539
proto
uint8_t proto
Definition: decode-template.h:0
PKT_NOPAYLOAD_INSPECTION
#define PKT_NOPAYLOAD_INSPECTION
Definition: decode.h:985
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:349
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:714
PacketAlert
struct PacketAlert_ PacketAlert
Packet_::host_dst
struct Host_ * host_dst
Definition: decode.h:585
PktProfilingLoggerData
struct PktProfilingLoggerData_ PktProfilingLoggerData
Packet_::flowflags
uint8_t flowflags
Definition: decode.h:456
PktProfilingPrefilterEngine
struct PktProfilingPrefilterEngine_ PktProfilingPrefilterEngine
Packet_::BypassPacketsFlow
int(* BypassPacketsFlow)(struct Packet_ *)
Definition: decode.h:512
ALPROTO_MAX
@ ALPROTO_MAX
Definition: app-layer-protos.h:76
PacketDropReason
PacketDropReason
Definition: decode.h:387
DecodeThreadVars_::counter_max_mac_addrs_src
uint16_t counter_max_mac_addrs_src
Definition: decode.h:668
PktProfiling_::app
PktProfilingAppData app[ALPROTO_MAX]
Definition: decode.h:379
PktProfiling_::ticks_start
uint64_t ticks_start
Definition: decode.h:374
DecodeUnregisterCounters
void DecodeUnregisterCounters(void)
Definition: decode.c:518
rww_lock_contention
thread_local uint64_t rww_lock_contention
Packet_::payload_len
uint16_t payload_len
Definition: decode.h:568
DecodeThreadVars_::counter_flow_get_used
uint16_t counter_flow_get_used
Definition: decode.h:722
Packet_::persistent
struct Packet_::@42 persistent
Packet_::alerts
PacketAlerts alerts
Definition: decode.h:582
Packet_::tunnel_tpr_cnt
uint16_t tunnel_tpr_cnt
Definition: decode.h:621
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:594
Packet_::events
PacketEngineEvents events
Definition: decode.h:592
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:729
PktProfilingAppData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:354
DecodeThreadVars_::counter_flow_tcp_reuse
uint16_t counter_flow_tcp_reuse
Definition: decode.h:721
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:265
rwr_lock_contention
thread_local uint64_t rwr_lock_contention
LINKTYPE_NULL
#define LINKTYPE_NULL
Definition: decode.h:964
DECODE_TUNNEL_NSH
@ DECODE_TUNNEL_NSH
Definition: decode.h:807
DecodeThreadVars_::counter_flow_total
uint16_t counter_flow_total
Definition: decode.h:715
PacketAlert_::action
uint8_t action
Definition: decode.h:262
Packet_::datalink
int datalink
Definition: decode.h:601
Packet_::profile
PktProfiling * profile
Definition: decode.h:632
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:528
Packet_::level3_comp_csum
int32_t level3_comp_csum
Definition: decode.h:521
DecodeThreadVars_::counter_flow_spare_sync
uint16_t counter_flow_spare_sync
Definition: decode.h:728
DECODE_TUNNEL_ERSPANII
@ DECODE_TUNNEL_ERSPANII
Definition: decode.h:800
CHECKSUM_VALIDATION_AUTO
@ CHECKSUM_VALIDATION_AUTO
Definition: decode.h:48
DecodeThreadVars_::counter_ipv6inipv6
uint16_t counter_ipv6inipv6
Definition: decode.h:699
Packet_::pktlen
uint32_t pktlen
Definition: decode.h:576
decode-ipv6.h
TUNNEL_PKT_TPR
#define TUNNEL_PKT_TPR(p)
Definition: decode.h:788
Packet_::level4_comp_csum
int32_t level4_comp_csum
Definition: decode.h:523
util-debug.h
DecodeThreadVars_::counter_flow_get_used_failed
uint16_t counter_flow_get_used_failed
Definition: decode.h:726
PKT_SRC_WIRE
@ PKT_SRC_WIRE
Definition: decode.h:54
source-nfq.h
Packet_::pktvar
PktVar * pktvar
Definition: decode.h:515
CaptureStats_::counter_ips_rejected
uint16_t counter_ips_rejected
Definition: decode.h:745
DPDKPacketVars_
per packet DPDK vars
Definition: source-dpdk.h:83
DecodeThreadVars_::counter_icmpv4
uint16_t counter_icmpv4
Definition: decode.h:679
DecodeThreadVars_::counter_ppp
uint16_t counter_ppp
Definition: decode.h:687
ETHERNET_TYPE_8021AD
#define ETHERNET_TYPE_8021AD
Definition: decode-ethernet.h:43
PacketAlert_::num
SigIntId num
Definition: decode.h:261
Packet_::tunnel_lock
SCSpinlock tunnel_lock
Definition: decode.h:642
PKT_DROP_REASON_APPLAYER_ERROR
@ PKT_DROP_REASON_APPLAYER_ERROR
Definition: decode.h:394
PacketSwap
void PacketSwap(Packet *p)
switch direction of a packet
Definition: decode.c:493
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:388
flow-worker.h
PktVar_::value
uint8_t * value
Definition: decode.h:317
PktProfilingAppData
struct PktProfilingAppData_ PktProfilingAppData
DecodeTunnelProto
DecodeTunnelProto
Definition: decode.h:798
Packet_::prev
struct Packet_ * prev
Definition: decode.h:598
Packet
struct Packet_ Packet
decode-ppp.h
Packet_::pcap_v
PcapPacketVars pcap_v
Definition: decode.h:505
IS_TUNNEL_PKT_VERDICTED
#define IS_TUNNEL_PKT_VERDICTED(p)
Definition: decode.h:795
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:619
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:518
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:342
DECODE_TUNNEL_PPP
@ DECODE_TUNNEL_PPP
Definition: decode.h:806
Packet_::sp
Port sp
Definition: decode.h:432
PktProfiling_::logger
PktProfilingLoggerData logger[LOGGER_SIZE]
Definition: decode.h:381
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:691
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:973
LINKTYPE_PPP
#define LINKTYPE_PPP
Definition: decode.h:967
PktProfilingDetectData_
Definition: decode.h:347
PktVar_::key
uint8_t * key
Definition: decode.h:316
decode-icmpv6.h
PacketAlerts_::discarded
uint16_t discarded
Definition: decode.h:287
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:396
DecodeThreadVars_::counter_defrag_ipv6_timeouts
uint16_t counter_defrag_ipv6_timeouts
Definition: decode.h:709
LOGGER_SIZE
@ LOGGER_SIZE
Definition: suricata-common.h:481
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:132
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:802
Packet_::icmpv6h
ICMPV6Hdr * icmpv6h
Definition: decode.h:557
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:743
IPV6Hdr_
Definition: decode-ipv6.h:32
Packet_
Definition: decode.h:425
DecodeThreadVars_::counter_nsh
uint16_t counter_nsh
Definition: decode.h:701
GENERIC_TOO_MANY_LAYERS
@ GENERIC_TOO_MANY_LAYERS
Definition: decode-events.h:220
DECODE_TUNNEL_IPV4
@ DECODE_TUNNEL_IPV4
Definition: decode.h:803
DecodeThreadVars_::app_tctx
AppLayerThreadCtx * app_tctx
Definition: decode.h:661
DecodeThreadVars_::counter_defrag_ipv4_timeouts
uint16_t counter_defrag_ipv4_timeouts
Definition: decode.h:706
decode-icmpv4.h
DecodeThreadVars_::counter_sll
uint16_t counter_sll
Definition: decode.h:682
source-ipfw.h
Address_::address_un_data8
uint8_t address_un_data8[16]
Definition: decode.h:116
TMM_SIZE
@ TMM_SIZE
Definition: tm-threads-common.h:77
PacketEngineEvents_
Definition: decode.h:304
source-netmap.h
Packet_::ip4h
IPV4Hdr * ip4h
Definition: decode.h:525
PKT_DROP_REASON_STREAM_ERROR
@ PKT_DROP_REASON_STREAM_ERROR
Definition: decode.h:398
Port
uint16_t Port
Definition: decode.h:226
DecodeThreadVars_::counter_sctp
uint16_t counter_sctp
Definition: decode.h:685
Packet_::livedev
struct LiveDevice_ * livedev
Definition: decode.h:580
source-windivert.h
DecodeThreadVars_::counter_invalid
uint16_t counter_invalid
Definition: decode.h:671
ETHERNET_TYPE_VNTAG
#define ETHERNET_TYPE_VNTAG
Definition: decode-ethernet.h:51
DecodeThreadVars_::counter_ieee8021ah
uint16_t counter_ieee8021ah
Definition: decode.h:694
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:698
ETHERNET_TYPE_NSH
#define ETHERNET_TYPE_NSH
Definition: decode-ethernet.h:50
DecodeThreadVars_::counter_vlan
uint16_t counter_vlan
Definition: decode.h:690
DECODE_TUNNEL_ETHERNET
@ DECODE_TUNNEL_ETHERNET
Definition: decode.h:799
DecodeThreadVars_::counter_tcp
uint16_t counter_tcp
Definition: decode.h:677
ETHERNET_TYPE_DCE
#define ETHERNET_TYPE_DCE
Definition: decode-ethernet.h:49
DecodeThreadVars_::counter_pkts
uint16_t counter_pkts
Definition: decode.h:664
rwr_lock_wait_ticks
thread_local uint64_t rwr_lock_wait_ticks
decode-events.h
PktProfilingPrefilterEngine_
Definition: decode.h:363
PktProfilingData_::ticks_start
uint64_t ticks_start
Definition: decode.h:343
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:266
PktProfilingPrefilterData
struct PktProfilingPrefilterData_ PktProfilingPrefilterData
Packet_::ntpv
NapatechPacketVars ntpv
Definition: decode.h:499
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:968
Packet_::nb_decoded_layers
uint8_t nb_decoded_layers
Definition: decode.h:606
PacketAlert_::flags
uint8_t flags
Definition: decode.h:263
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:674
Packet_::ppph
PPPHdr * ppph
Definition: decode.h:559
Packet_::nfq_v
NFQPacketVars nfq_v
Definition: decode.h:476
ICMPV6Hdr_
Definition: decode-icmpv6.h:144
PktProfiling_::detect
PktProfilingDetectData detect[PROF_DETECT_SIZE]
Definition: decode.h:380
Packet_::icmpv4vars
ICMPV4Vars icmpv4vars
Definition: decode.h:540
Packet_::ReleasePacket
void(* ReleasePacket)(struct Packet_ *)
Definition: decode.h:509
Packet_::tenant_id
uint32_t tenant_id
Definition: decode.h:624
Packet_::flow
struct Flow_ * flow
Definition: decode.h:462
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:402
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:359
PktProfilingPrefilterEngine_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:364
DecodeThreadVars_::counter_flow_spare_sync_incomplete
uint16_t counter_flow_spare_sync_incomplete
Definition: decode.h:730
Packet_::ts
struct timeval ts
Definition: decode.h:468
PKT_DROP_REASON_APPLAYER_MEMCAP
@ PKT_DROP_REASON_APPLAYER_MEMCAP
Definition: decode.h:395
DecodeGlobalConfig
void DecodeGlobalConfig(void)
Definition: decode.c:844
ChecksumValidationMode
ChecksumValidationMode
Definition: decode.h:45
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:720
Packet_::tcph
TCPHdr * tcph
Definition: decode.h:547
DecodeThreadVars_::counter_ipv6
uint16_t counter_ipv6
Definition: decode.h:676
PROFILE_FLOWWORKER_SIZE
@ PROFILE_FLOWWORKER_SIZE
Definition: flow-worker.h:29
CaptureStats_::counter_ips_replaced
uint16_t counter_ips_replaced
Definition: decode.h:746
ETHERNET_DCE_HEADER_LEN
#define ETHERNET_DCE_HEADER_LEN
Definition: decode-ethernet.h:30
DecodeThreadVars_::counter_gre
uint16_t counter_gre
Definition: decode.h:689
DecodeThreadVars_::counter_esp
uint16_t counter_esp
Definition: decode.h:686
Packet_::ext_pkt
uint8_t * ext_pkt
Definition: decode.h:577
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
SCLogError
#define SCLogError(err_code,...)
Macro used to log ERROR messages.
Definition: util-debug.h:255
PKT_DROP_REASON_NFQ_ERROR
@ PKT_DROP_REASON_NFQ_ERROR
Definition: decode.h:401
DecodeThreadVars_::counter_defrag_ipv6_reassembled
uint16_t counter_defrag_ipv6_reassembled
Definition: decode.h:708
DecodeThreadVars_::counter_udp
uint16_t counter_udp
Definition: decode.h:678
PacketUpdateEngineEventCounters
void PacketUpdateEngineEventCounters(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p)
Definition: decode.c:154
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:555
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:675
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:787
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
Packet_::next
struct Packet_ * next
Definition: decode.h:597
Packet_::flow_hash
uint32_t flow_hash
Definition: decode.h:466
Packet_::root
struct Packet_ * root
Definition: decode.h:612
DecodeThreadVars_::counter_pppoe
uint16_t counter_pppoe
Definition: decode.h:695
PacketAlerts_::suppressed
uint16_t suppressed
Definition: decode.h:288
PktProfilingPrefilterData_::size
uint32_t size
Definition: decode.h:369
DecodeThreadVars_::counter_mpls
uint16_t counter_mpls
Definition: decode.h:697
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:573
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:659
PACKET_ENGINE_EVENT_MAX
#define PACKET_ENGINE_EVENT_MAX
Definition: decode.h:301
Packet_::recursion_level
uint8_t recursion_level
Definition: decode.h:450
PktProfilingLoggerData_
Definition: decode.h:357
PktProfiling_::tmm
PktProfilingTmmData tmm[TMM_SIZE]
Definition: decode.h:377
Signature_
Signature container.
Definition: detect.h:539
DecodeThreadVars_::output_flow_thread_data
void * output_flow_thread_data
Definition: decode.h:737
DecodeThreadVars_::counter_geneve
uint16_t counter_geneve
Definition: decode.h:688
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:669
Packet_::pppoedh
PPPOEDiscoveryHdr * pppoedh
Definition: decode.h:561
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:710
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
SC_ERR_DATALINK_UNIMPLEMENTED
@ SC_ERR_DATALINK_UNIMPLEMENTED
Definition: util-error.h:68
LINKTYPE_CISCO_HDLC
#define LINKTYPE_CISCO_HDLC
Definition: decode.h:974
PktVar_::value_len
uint16_t value_len
Definition: decode.h:315
DECODE_EVENT_MAX
@ DECODE_EVENT_MAX
Definition: decode-events.h:293
Packet_::icmp_d
struct Packet_::@35::@44 icmp_d
app-layer-protos.h
DecodeThreadVars_::counter_null
uint16_t counter_null
Definition: decode.h:684
DecodeThreadVars_::counter_icmpv6
uint16_t counter_icmpv6
Definition: decode.h:680
Packet_::udph
UDPHdr * udph
Definition: decode.h:549
PcapPacketVars_
Definition: source-pcap.h:36
Packet_::drop_reason
uint8_t drop_reason
Definition: decode.h:609
Address_::family
char family
Definition: decode.h:112
Packet_::dst
Address dst
Definition: decode.h:430
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:888
PktProfilingTmmData_::ticks_start
uint64_t ticks_start
Definition: decode.h:324
PacketAlert_
Definition: decode.h:260
PktProfilingLoggerData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:360
DecodeThreadVars_::counter_flow_memcap
uint16_t counter_flow_memcap
Definition: decode.h:712
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:707
PKT_NOPACKET_INSPECTION
#define PKT_NOPACKET_INSPECTION
Definition: decode.h:981
PktVar_
Definition: decode.h:309
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:348
PacketDefragPktSetupParent
void PacketDefragPktSetupParent(Packet *parent)
inform defrag "parent" that a pseudo packet is now associated to it.
Definition: decode.c:429
Packet_::plugin_v
uint8_t plugin_v[PLUGIN_VAR_SIZE]
Definition: decode.h:502
Packet_::ip6h
IPV6Hdr * ip6h
Definition: decode.h:527
Packet_::icmpv6vars
ICMPV6Vars icmpv6vars
Definition: decode.h:541
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:378
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:400
SigIntId
#define SigIntId
Definition: suricata-common.h:304
PacketAlerts_
Definition: decode.h:285
Packet_::dp
Port dp
Definition: decode.h:440
PktVar_::key_len
uint16_t key_len
Definition: decode.h:314
PktProfilingAppData_
Definition: decode.h:353
Host_
Definition: host.h:58
Packet_::esph
ESPHdr * esph
Definition: decode.h:553
g_default_mtu
int g_default_mtu
Definition: suricata.c:184
DecodeThreadVars_::counter_flow_get_used_eval_reject
uint16_t counter_flow_get_used_eval_reject
Definition: decode.h:724
PktProfiling_::proto_detect
uint64_t proto_detect
Definition: decode.h:382
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:435
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:808
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:358
PKT_DROP_REASON_FLOW_DROP
@ PKT_DROP_REASON_FLOW_DROP
Definition: decode.h:393
Packet_::src
Address src
Definition: decode.h:429
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:655
DecodeThreadVars_::counter_engine_events
uint16_t counter_engine_events[DECODE_EVENT_MAX]
Definition: decode.h:733
LINKTYPE_ETHERNET
#define LINKTYPE_ETHERNET
Definition: decode.h:965
Packet_::ip6eh
IPV6ExtHdrs ip6eh
Definition: decode.h:534
PktProfilingDetectData_::ticks_spent
uint64_t ticks_spent
Definition: decode.h:350
PktVar_::id
uint32_t id
Definition: decode.h:310
DCE_PKT_TOO_SMALL
@ DCE_PKT_TOO_SMALL
Definition: decode-events.h:206
PKT_DROP_REASON_DECODE_ERROR
@ PKT_DROP_REASON_DECODE_ERROR
Definition: decode.h:389
DecodeThreadVars_::counter_defrag_ipv4_fragments
uint16_t counter_defrag_ipv4_fragments
Definition: decode.h:704
PacketEngineEvents_::cnt
uint8_t cnt
Definition: decode.h:305
DecodePPPOEDiscovery
int DecodePPPOEDiscovery(ThreadVars *, DecodeThreadVars *, Packet *, const uint8_t *, uint32_t)
Main decoding function for PPPOE Discovery packets.
Definition: decode-pppoe.c:50