epan/dissectors/packet-sctp.h

   1 /* packet-sctp.h
   2  *
   3  * Definition of SCTP specific structures used by tap listeners.
   4  *
   5  * Copyright 2004 Michael Tuexen <tuexen [AT] fh-muenster.de>
   6  *
   7  * Wireshark - Network traffic analyzer
   8  * By Gerald Combs <gerald@wireshark.org>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * SPDX-License-Identifier: GPL-2.0-or-later
  12  */
  13
  14 #ifndef __PACKET_SCTP_H__
  15 #define __PACKET_SCTP_H__
  16
  17 #include "ws_symbol_export.h"
  18
  19 #ifdef __cplusplus
  20 extern "C" {
  21 #endif /* __cplusplus */
  22
  23 #define MAXIMUM_NUMBER_OF_TVBS 2048
  24
  25 struct _sctp_info {
  26   bool incomplete;
  27   bool adler32_calculated;
  28   bool adler32_correct;
  29   bool crc32c_calculated;
  30   bool crc32c_correct;
  31   bool checksum_zero;
  32   bool vtag_reflected;
  33   uint16_t sport;
  34   uint16_t dport;
  35   address ip_src;
  36   address ip_dst;
  37   uint32_t verification_tag;
  38   uint16_t assoc_index;
  39   uint16_t direction;
  40   uint32_t number_of_tvbs;
  41   tvbuff_t *tvb[MAXIMUM_NUMBER_OF_TVBS];
  42 };
  43
  44 typedef struct _sctp_fragment {
  45   uint32_t frame_num;
  46   uint32_t tsn;
  47   uint32_t len;
  48   uint32_t ppi;
  49   unsigned char *data;
  50   struct _sctp_fragment *next;
  51 } sctp_fragment;
  52
  53 typedef struct _sctp_frag_be {
  54   sctp_fragment* fragment;
  55   struct _sctp_frag_be *next;
  56 } sctp_frag_be;
  57
  58 typedef struct _sctp_complete_msg {
  59   uint32_t begin;
  60   uint32_t end;
  61   sctp_fragment* reassembled_in;
  62   uint32_t len;
  63   unsigned char *data;
  64   struct _sctp_complete_msg *next;
  65 } sctp_complete_msg;
  66
  67 typedef struct _sctp_frag_msg {
  68   sctp_frag_be* begins;
  69   sctp_frag_be* ends;
  70   sctp_fragment* fragments;
  71   sctp_complete_msg* messages;
  72   uint32_t ppi;
  73   struct _sctp_frag_msg* next;
  74 } sctp_frag_msg;
  75
  76 #define SCTP_DATA_CHUNK_ID               0
  77 #define SCTP_INIT_CHUNK_ID               1
  78 #define SCTP_INIT_ACK_CHUNK_ID           2
  79 #define SCTP_SACK_CHUNK_ID               3
  80 #define SCTP_HEARTBEAT_CHUNK_ID          4
  81 #define SCTP_HEARTBEAT_ACK_CHUNK_ID      5
  82 #define SCTP_ABORT_CHUNK_ID              6
  83 #define SCTP_SHUTDOWN_CHUNK_ID           7
  84 #define SCTP_SHUTDOWN_ACK_CHUNK_ID       8
  85 #define SCTP_ERROR_CHUNK_ID              9
  86 #define SCTP_COOKIE_ECHO_CHUNK_ID       10
  87 #define SCTP_COOKIE_ACK_CHUNK_ID        11
  88 #define SCTP_ECNE_CHUNK_ID              12
  89 #define SCTP_CWR_CHUNK_ID               13
  90 #define SCTP_SHUTDOWN_COMPLETE_CHUNK_ID 14
  91 #define SCTP_AUTH_CHUNK_ID              15
  92 #define SCTP_NR_SACK_CHUNK_ID           16
  93 #define SCTP_I_DATA_CHUNK_ID          0x40
  94 #define SCTP_ASCONF_ACK_CHUNK_ID      0x80
  95 #define SCTP_PKTDROP_CHUNK_ID         0x81
  96 #define SCTP_RE_CONFIG_CHUNK_ID       0x82
  97 #define SCTP_PAD_CHUNK_ID             0x84
  98 #define SCTP_FORWARD_TSN_CHUNK_ID     0xC0
  99 #define SCTP_ASCONF_CHUNK_ID          0xC1
 100 #define SCTP_I_FORWARD_TSN_CHUNK_ID   0xC2
 101 #define SCTP_IETF_EXT                 0xFF
 102
 103 #define IS_SCTP_CHUNK_TYPE(t) \
 104         (((t) <= SCTP_NR_SACK_CHUNK_ID) || \
 105          ((t) == SCTP_I_DATA_CHUNK_ID) || \
 106          ((t) == SCTP_FORWARD_TSN_CHUNK_ID) || \
 107          ((t) == SCTP_ASCONF_CHUNK_ID) || \
 108          ((t) == SCTP_ASCONF_ACK_CHUNK_ID) || \
 109          ((t) == SCTP_PKTDROP_CHUNK_ID))
 110
 111 WS_DLL_PUBLIC const value_string chunk_type_values[];
 112
 113 #ifdef __cplusplus
 114 }
 115 #endif /* __cplusplus */
 116
 117 #endif
 118
 119 /*
 120  * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
 121  *
 122  * Local Variables:
 123  * c-basic-offset: 2
 124  * tab-width: 8
 125  * indent-tabs-mode: nil
 126  * End:
 127  *
 128  * vi: set shiftwidth=2 tabstop=8 expandtab:
 129  * :indentSize=2:tabSize=8:noTabs=true:
 130  */