wtap.h

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#ifndef __WTAP_H__
#define __WTAP_H__
 
#include <wireshark.h>
#include <time.h>
#include <wsutil/buffer.h>
#include <wsutil/nstime.h>
#include <wsutil/inet_addr.h>
#include "wtap_opttypes.h"
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
/* Encapsulation types. Choose names that truly reflect
 * what is contained in the packet trace file.
 *
 * WTAP_ENCAP_PER_PACKET is a value passed to "wtap_dump_open()" or
 * "wtap_dump_fdopen()" to indicate that there is no single encapsulation
 * type for all packets in the file; this may cause those routines to
 * fail if the capture file format being written can't support that.
 * It's also returned by "wtap_file_encap()" for capture files that
 * don't have a single encapsulation type for all packets in the file.
 *
 * WTAP_ENCAP_UNKNOWN is returned by "wtap_pcap_encap_to_wtap_encap()"
 * if it's handed an unknown encapsulation. It is also used by file
 * types for encapsulations which are unsupported by libwiretap.
 *
 * WTAP_ENCAP_NONE is an initial value used by file types like pcapng
 * that do not have a single file level encapsulation type. If and when
 * something that indicate encapsulation is read, the encapsulation will
 * change (possibly to WTAP_ENCAP_PER_PACKET) and appropriate IDBs will
 * be generated. If a file type uses this value, it MUST provide IDBs
 * (possibly fake) when the encapsulation changes; otherwise, it should
 * return WTAP_ENCAP_UNKNOWN so that attempts to write an output file
 * without reading the entire input file first fail gracefully.
 *
 * WTAP_ENCAP_FDDI_BITSWAPPED is for FDDI captures on systems where the
 * MAC addresses you get from the hardware are bit-swapped.  Ideally,
 * the driver would tell us that, but I know of none that do, so, for
 * now, we base it on the machine on which we're *reading* the
 * capture, rather than on the machine on which the capture was taken
 * (they're probably likely to be the same).  We assume that they're
 * bit-swapped on everything except for systems running Ultrix, Alpha
 * systems, and BSD/OS systems (that's what "tcpdump" does; I guess
 * Digital decided to bit-swap addresses in the hardware or in the
 * driver, and I guess BSDI bit-swapped them in the driver, given that
 * BSD/OS generally runs on Boring Old PC's).  If we create a wiretap
 * save file format, we'd use the WTAP_ENCAP values to flag the
 * encapsulation of a packet, so there we'd at least be able to base
 * it on the machine on which the capture was taken.
 *
 * WTAP_ENCAP_LINUX_ATM_CLIP is the encapsulation you get with the
 * ATM on Linux code from <http://linux-atm.sourceforge.net/>;
 * that code adds a DLT_ATM_CLIP DLT_ code of 19, and that
 * encapsulation isn't the same as the DLT_ATM_RFC1483 encapsulation
 * presumably used on some BSD systems, which we turn into
 * WTAP_ENCAP_ATM_RFC1483.
 *
 * WTAP_ENCAP_NULL corresponds to DLT_NULL from "libpcap".  This
 * corresponds to
 *
 *  1) PPP-over-HDLC encapsulation, at least with some versions
 *     of ISDN4BSD (but not the current ones, it appears, unless
 *     I've missed something);
 *
 *  2) a 4-byte header containing the AF_ address family, in
 *     the byte order of the machine that saved the capture,
 *     for the packet, as used on many BSD systems for the
 *     loopback device and some other devices, or a 4-byte header
 *     containing the AF_ address family in network byte order,
 *     as used on recent OpenBSD systems for the loopback device;
 *
 *  3) a 4-byte header containing 2 octets of 0 and an Ethernet
 *     type in the byte order from an Ethernet header, that being
 *     what older versions of "libpcap" on Linux turn the Ethernet
 *     header for loopback interfaces into (0.6.0 and later versions
 *     leave the Ethernet header alone and make it DLT_EN10MB). */
#define WTAP_ENCAP_NONE                         -2
#define WTAP_ENCAP_PER_PACKET                   -1
#define WTAP_ENCAP_UNKNOWN                        0
#define WTAP_ENCAP_ETHERNET                       1
#define WTAP_ENCAP_TOKEN_RING                     2
#define WTAP_ENCAP_SLIP                           3
#define WTAP_ENCAP_PPP                            4
#define WTAP_ENCAP_FDDI                           5
#define WTAP_ENCAP_FDDI_BITSWAPPED                6
#define WTAP_ENCAP_RAW_IP                         7
#define WTAP_ENCAP_ARCNET                         8
#define WTAP_ENCAP_ARCNET_LINUX                   9
#define WTAP_ENCAP_ATM_RFC1483                   10
#define WTAP_ENCAP_LINUX_ATM_CLIP                11
#define WTAP_ENCAP_LAPB                          12
#define WTAP_ENCAP_ATM_PDUS                      13
#define WTAP_ENCAP_ATM_PDUS_UNTRUNCATED          14
#define WTAP_ENCAP_NULL                          15
#define WTAP_ENCAP_ASCEND                        16
#define WTAP_ENCAP_ISDN                          17
#define WTAP_ENCAP_IP_OVER_FC                    18
#define WTAP_ENCAP_PPP_WITH_PHDR                 19
#define WTAP_ENCAP_IEEE_802_11                   20
#define WTAP_ENCAP_IEEE_802_11_PRISM             21
#define WTAP_ENCAP_IEEE_802_11_WITH_RADIO        22
#define WTAP_ENCAP_IEEE_802_11_RADIOTAP          23
#define WTAP_ENCAP_IEEE_802_11_AVS               24
#define WTAP_ENCAP_SLL                           25
#define WTAP_ENCAP_FRELAY                        26
#define WTAP_ENCAP_FRELAY_WITH_PHDR              27
#define WTAP_ENCAP_CHDLC                         28
#define WTAP_ENCAP_CISCO_IOS                     29
#define WTAP_ENCAP_LOCALTALK                     30
#define WTAP_ENCAP_OLD_PFLOG                     31
#define WTAP_ENCAP_HHDLC                         32
#define WTAP_ENCAP_DOCSIS                        33
#define WTAP_ENCAP_COSINE                        34
#define WTAP_ENCAP_WFLEET_HDLC                   35
#define WTAP_ENCAP_SDLC                          36
#define WTAP_ENCAP_TZSP                          37
#define WTAP_ENCAP_ENC                           38
#define WTAP_ENCAP_PFLOG                         39
#define WTAP_ENCAP_CHDLC_WITH_PHDR               40
#define WTAP_ENCAP_BLUETOOTH_H4                  41
#define WTAP_ENCAP_MTP2                          42
#define WTAP_ENCAP_MTP3                          43
#define WTAP_ENCAP_IRDA                          44
#define WTAP_ENCAP_USER0                         45
#define WTAP_ENCAP_USER1                         46
#define WTAP_ENCAP_USER2                         47
#define WTAP_ENCAP_USER3                         48
#define WTAP_ENCAP_USER4                         49
#define WTAP_ENCAP_USER5                         50
#define WTAP_ENCAP_USER6                         51
#define WTAP_ENCAP_USER7                         52
#define WTAP_ENCAP_USER8                         53
#define WTAP_ENCAP_USER9                         54
#define WTAP_ENCAP_USER10                        55
#define WTAP_ENCAP_USER11                        56
#define WTAP_ENCAP_USER12                        57
#define WTAP_ENCAP_USER13                        58
#define WTAP_ENCAP_USER14                        59
#define WTAP_ENCAP_USER15                        60
#define WTAP_ENCAP_SYMANTEC                      61
#define WTAP_ENCAP_APPLE_IP_OVER_IEEE1394        62
#define WTAP_ENCAP_BACNET_MS_TP                  63
#define WTAP_ENCAP_NETTL_RAW_ICMP                64
#define WTAP_ENCAP_NETTL_RAW_ICMPV6              65
#define WTAP_ENCAP_GPRS_LLC                      66
#define WTAP_ENCAP_JUNIPER_ATM1                  67
#define WTAP_ENCAP_JUNIPER_ATM2                  68
#define WTAP_ENCAP_REDBACK                       69
#define WTAP_ENCAP_NETTL_RAW_IP                  70
#define WTAP_ENCAP_NETTL_ETHERNET                71
#define WTAP_ENCAP_NETTL_TOKEN_RING              72
#define WTAP_ENCAP_NETTL_FDDI                    73
#define WTAP_ENCAP_NETTL_UNKNOWN                 74
#define WTAP_ENCAP_MTP2_WITH_PHDR                75
#define WTAP_ENCAP_JUNIPER_PPPOE                 76
#define WTAP_ENCAP_GCOM_TIE1                     77
#define WTAP_ENCAP_GCOM_SERIAL                   78
#define WTAP_ENCAP_NETTL_X25                     79
#define WTAP_ENCAP_K12                           80
#define WTAP_ENCAP_JUNIPER_MLPPP                 81
#define WTAP_ENCAP_JUNIPER_MLFR                  82
#define WTAP_ENCAP_JUNIPER_ETHER                 83
#define WTAP_ENCAP_JUNIPER_PPP                   84
#define WTAP_ENCAP_JUNIPER_FRELAY                85
#define WTAP_ENCAP_JUNIPER_CHDLC                 86
#define WTAP_ENCAP_JUNIPER_GGSN                  87
#define WTAP_ENCAP_LINUX_LAPD                    88
#define WTAP_ENCAP_CATAPULT_DCT2000              89
#define WTAP_ENCAP_BER                           90
#define WTAP_ENCAP_JUNIPER_VP                    91
#define WTAP_ENCAP_USB_FREEBSD                   92
#define WTAP_ENCAP_IEEE802_16_MAC_CPS            93
#define WTAP_ENCAP_NETTL_RAW_TELNET              94
#define WTAP_ENCAP_USB_LINUX                     95
#define WTAP_ENCAP_MPEG                          96
#define WTAP_ENCAP_PPI                           97
#define WTAP_ENCAP_ERF                           98
#define WTAP_ENCAP_BLUETOOTH_H4_WITH_PHDR        99
#define WTAP_ENCAP_SITA                         100
#define WTAP_ENCAP_SCCP                         101
#define WTAP_ENCAP_BLUETOOTH_HCI                102 /*raw packets without a transport layer header e.g. H4*/
#define WTAP_ENCAP_IPMB_KONTRON                 103
#define WTAP_ENCAP_IEEE802_15_4                 104
#define WTAP_ENCAP_X2E_XORAYA                   105
#define WTAP_ENCAP_FLEXRAY                      106
#define WTAP_ENCAP_LIN                          107
#define WTAP_ENCAP_MOST                         108
#define WTAP_ENCAP_CAN20B                       109
#define WTAP_ENCAP_LAYER1_EVENT                 110
#define WTAP_ENCAP_X2E_SERIAL                   111
#define WTAP_ENCAP_I2C_LINUX                    112
#define WTAP_ENCAP_IEEE802_15_4_NONASK_PHY      113
#define WTAP_ENCAP_TNEF                         114
#define WTAP_ENCAP_USB_LINUX_MMAPPED            115
#define WTAP_ENCAP_GSM_UM                       116
#define WTAP_ENCAP_DPNSS                        117
#define WTAP_ENCAP_PACKETLOGGER                 118
#define WTAP_ENCAP_NSTRACE_1_0                  119
#define WTAP_ENCAP_NSTRACE_2_0                  120
#define WTAP_ENCAP_FIBRE_CHANNEL_FC2            121
#define WTAP_ENCAP_FIBRE_CHANNEL_FC2_WITH_FRAME_DELIMS 122
#define WTAP_ENCAP_JPEG_JFIF                    123 /* obsoleted by WTAP_ENCAP_MIME*/
#define WTAP_ENCAP_IPNET                        124
#define WTAP_ENCAP_SOCKETCAN                    125
#define WTAP_ENCAP_IEEE_802_11_NETMON           126
#define WTAP_ENCAP_IEEE802_15_4_NOFCS           127
#define WTAP_ENCAP_RAW_IPFIX                    128
#define WTAP_ENCAP_RAW_IP4                      129
#define WTAP_ENCAP_RAW_IP6                      130
#define WTAP_ENCAP_LAPD                         131
#define WTAP_ENCAP_DVBCI                        132
#define WTAP_ENCAP_MUX27010                     133
#define WTAP_ENCAP_MIME                         134
#define WTAP_ENCAP_NETANALYZER                  135
#define WTAP_ENCAP_NETANALYZER_TRANSPARENT      136
#define WTAP_ENCAP_IP_OVER_IB_SNOOP             137
#define WTAP_ENCAP_MPEG_2_TS                    138
#define WTAP_ENCAP_PPP_ETHER                    139
#define WTAP_ENCAP_NFC_LLCP                     140
#define WTAP_ENCAP_NFLOG                        141
#define WTAP_ENCAP_V5_EF                        142
#define WTAP_ENCAP_BACNET_MS_TP_WITH_PHDR       143
#define WTAP_ENCAP_IXVERIWAVE                   144
#define WTAP_ENCAP_SDH                          145
#define WTAP_ENCAP_DBUS                         146
#define WTAP_ENCAP_AX25_KISS                    147
#define WTAP_ENCAP_AX25                         148
#define WTAP_ENCAP_SCTP                         149
#define WTAP_ENCAP_INFINIBAND                   150
#define WTAP_ENCAP_JUNIPER_SVCS                 151
#define WTAP_ENCAP_USBPCAP                      152
#define WTAP_ENCAP_RTAC_SERIAL                  153
#define WTAP_ENCAP_BLUETOOTH_LE_LL              154
#define WTAP_ENCAP_WIRESHARK_UPPER_PDU          155
#define WTAP_ENCAP_STANAG_4607                  156
#define WTAP_ENCAP_STANAG_5066_D_PDU            157
#define WTAP_ENCAP_NETLINK                      158
#define WTAP_ENCAP_BLUETOOTH_LINUX_MONITOR      159
#define WTAP_ENCAP_BLUETOOTH_BREDR_BB           160
#define WTAP_ENCAP_BLUETOOTH_LE_LL_WITH_PHDR    161
#define WTAP_ENCAP_NSTRACE_3_0                  162
#define WTAP_ENCAP_LOGCAT                       163
#define WTAP_ENCAP_LOGCAT_BRIEF                 164
#define WTAP_ENCAP_LOGCAT_PROCESS               165
#define WTAP_ENCAP_LOGCAT_TAG                   166
#define WTAP_ENCAP_LOGCAT_THREAD                167
#define WTAP_ENCAP_LOGCAT_TIME                  168
#define WTAP_ENCAP_LOGCAT_THREADTIME            169
#define WTAP_ENCAP_LOGCAT_LONG                  170
#define WTAP_ENCAP_PKTAP                        171
#define WTAP_ENCAP_EPON                         172
#define WTAP_ENCAP_IPMI_TRACE                   173
#define WTAP_ENCAP_LOOP                         174
#define WTAP_ENCAP_JSON                         175
#define WTAP_ENCAP_NSTRACE_3_5                  176
#define WTAP_ENCAP_ISO14443                     177
#define WTAP_ENCAP_GFP_T                        178
#define WTAP_ENCAP_GFP_F                        179
#define WTAP_ENCAP_IP_OVER_IB_PCAP              180
#define WTAP_ENCAP_JUNIPER_VN                   181
#define WTAP_ENCAP_USB_DARWIN                   182
#define WTAP_ENCAP_LORATAP                      183
#define WTAP_ENCAP_3MB_ETHERNET                 184
#define WTAP_ENCAP_VSOCK                        185
#define WTAP_ENCAP_NORDIC_BLE                   186
#define WTAP_ENCAP_NETMON_NET_NETEVENT          187
#define WTAP_ENCAP_NETMON_HEADER                188
#define WTAP_ENCAP_NETMON_NET_FILTER            189
#define WTAP_ENCAP_NETMON_NETWORK_INFO_EX       190
#define WTAP_ENCAP_MA_WFP_CAPTURE_V4            191
#define WTAP_ENCAP_MA_WFP_CAPTURE_V6            192
#define WTAP_ENCAP_MA_WFP_CAPTURE_2V4           193
#define WTAP_ENCAP_MA_WFP_CAPTURE_2V6           194
#define WTAP_ENCAP_MA_WFP_CAPTURE_AUTH_V4       195
#define WTAP_ENCAP_MA_WFP_CAPTURE_AUTH_V6       196
#define WTAP_ENCAP_JUNIPER_ST                   197
#define WTAP_ENCAP_ETHERNET_MPACKET             198
#define WTAP_ENCAP_DOCSIS31_XRA31               199
#define WTAP_ENCAP_DPAUXMON                     200
#define WTAP_ENCAP_RUBY_MARSHAL                 201
#define WTAP_ENCAP_RFC7468                      202
#define WTAP_ENCAP_SYSTEMD_JOURNAL              203 /* Event, not a packet */
#define WTAP_ENCAP_EBHSCR                       204
#define WTAP_ENCAP_VPP                          205
#define WTAP_ENCAP_IEEE802_15_4_TAP             206
#define WTAP_ENCAP_LOG_3GPP                     207
#define WTAP_ENCAP_USB_2_0                      208
#define WTAP_ENCAP_MP4                          209
#define WTAP_ENCAP_SLL2                         210
#define WTAP_ENCAP_ZWAVE_SERIAL                 211
#define WTAP_ENCAP_ETW                          212
#define WTAP_ENCAP_ERI_ENB_LOG                  213
#define WTAP_ENCAP_ZBNCP            214
#define WTAP_ENCAP_USB_2_0_LOW_SPEED            215
#define WTAP_ENCAP_USB_2_0_FULL_SPEED           216
#define WTAP_ENCAP_USB_2_0_HIGH_SPEED           217
#define WTAP_ENCAP_AUTOSAR_DLT                  218
#define WTAP_ENCAP_AUERSWALD_LOG                219
#define WTAP_ENCAP_ATSC_ALP                     220
#define WTAP_ENCAP_FIRA_UCI                     221
#define WTAP_ENCAP_SILABS_DEBUG_CHANNEL         222
#define WTAP_ENCAP_MDB                          223
#define WTAP_ENCAP_EMS                          224
#define WTAP_ENCAP_DECT_NR                      225
 
/* After adding new item here, please also add new item to encap_table_base array */
 
#define WTAP_NUM_ENCAP_TYPES                    wtap_get_num_encap_types()
 
/* Value to be used as a file type/subtype value if the type is unknown */
#define WTAP_FILE_TYPE_SUBTYPE_UNKNOWN                        -1
 
/* timestamp precision (currently only these values are supported) */
#define WTAP_TSPREC_UNKNOWN    -2
#define WTAP_TSPREC_PER_PACKET -1  /* as a per-file value, means per-packet */
/*
 * These values are the number of digits of precision after the integral part.
 * Thry're the same as WS_TSPREC values; we define them here so that
 * tools/make-enums.py sees them.
 */
#define WTAP_TSPREC_SEC         0
#define WTAP_TSPREC_100_MSEC    1
#define WTAP_TSPREC_DSEC        1 /* Backwards compatibility */
#define WTAP_TSPREC_10_MSEC     2
#define WTAP_TSPREC_CSEC        2 /* Backwards compatibility */
#define WTAP_TSPREC_MSEC        3
#define WTAP_TSPREC_100_USEC    4
#define WTAP_TSPREC_10_USEC     5
#define WTAP_TSPREC_USEC        6
#define WTAP_TSPREC_100_NSEC    7
#define WTAP_TSPREC_10_NSEC     8
#define WTAP_TSPREC_NSEC        9
/* if you add to the above, update wtap_tsprec_string() */
 
/*
 * Maximum packet sizes.
 *
 * For most link-layer types, we use 262144, which is currently
 * libpcap's MAXIMUM_SNAPLEN.
 *
 * For WTAP_ENCAP_DBUS, the maximum is 128MiB, as per
 *
 *    https://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages
 *
 * For WTAP_ENCAP_EBHSCR, the maximum is 8MiB, as per
 *
 *    https://www.elektrobit.com/ebhscr
 *
 * For WTAP_ENCAP_USBPCAP, the maximum is 128MiB, as per
 *
 *    https://gitlab.com/wireshark/wireshark/-/issues/15985
 *
 * We don't want to write out files that specify a maximum packet size
 * greater than 262144 if we don't have to, as software reading those
 * files might allocate a buffer much larger than necessary, wasting memory.
 */
#define WTAP_MAX_PACKET_SIZE_STANDARD    262144U
#define WTAP_MAX_PACKET_SIZE_USBPCAP     (128U*1024U*1024U)
#define WTAP_MAX_PACKET_SIZE_EBHSCR      (32U*1024U*1024U)
#define WTAP_MAX_PACKET_SIZE_DBUS        (128U*1024U*1024U)
 
/*
 * "Pseudo-headers" are used to supply to the clients of wiretap
 * per-packet information that's not part of the packet payload
 * proper.
 *
 * NOTE: do not use pseudo-header structures to hold information
 * used by the code to read a particular capture file type; to
 * keep that sort of state information, add a new structure for
 * that private information to "wtap-int.h", add a pointer to that
 * type of structure to the "capture" member of the "struct wtap"
 * structure, and allocate one of those structures and set that member
 * in the "open" routine for that capture file type if the open
 * succeeds.  See various other capture file type handlers for examples
 * of that.
 */
 
 
/* Packet "pseudo-header" information for Ethernet capture files. */
struct eth_phdr {
    int    fcs_len;  /* Number of bytes of FCS - -1 means "unknown" */
};
 
/* Packet "pseudo-header" information for capture files for traffic
   between DTE and DCE. */
#define FROM_DCE 0x80
struct dte_dce_phdr {
    uint8_t flags;   /* ENCAP_LAPB, ENCAP_V120, ENCAP_FRELAY: 1st bit means From DCE */
};
 
/* Packet "pseudo-header" information for ISDN capture files. */
 
/* Direction */
struct isdn_phdr {
    bool uton;
    uint8_t  channel;   /* 0 = D-channel; n = B-channel n */
};
 
/* Packet "pseudo-header" for ATM capture files.
   Not all of this information is supplied by all capture types.
   These originally came from the Network General (DOS-based)
   ATM Sniffer file format, but we've added some additional
   items. */
 
/*
 * Status bits.
 */
#define ATM_RAW_CELL         0x01 /* true if the packet is a single cell */
#define ATM_NO_HEC           0x02 /* true if the cell has HEC stripped out */
#define ATM_AAL2_NOPHDR      0x04 /* true if the AAL2 PDU has no pseudo-header */
#define ATM_REASSEMBLY_ERROR 0x08 /* true if this is an incompletely-reassembled PDU */
 
/*
 * AAL types.
 */
#define AAL_UNKNOWN     0  /* AAL unknown */
#define AAL_1           1  /* AAL1 */
#define AAL_2           2  /* AAL2 */
#define AAL_3_4         3  /* AAL3/4 */
#define AAL_5           4  /* AAL5 */
#define AAL_USER        5  /* User AAL */
#define AAL_SIGNALLING  6  /* Signaling AAL */
#define AAL_OAMCELL     7  /* OAM cell */
 
/*
 * Traffic types.
 */
#define TRAF_UNKNOWN    0  /* Unknown */
#define TRAF_LLCMX      1  /* LLC multiplexed (RFC 1483) */
#define TRAF_VCMX       2  /* VC multiplexed (RFC 1483) */
#define TRAF_LANE       3  /* LAN Emulation */
#define TRAF_ILMI       4  /* ILMI */
#define TRAF_FR         5  /* Frame Relay */
#define TRAF_SPANS      6  /* FORE SPANS */
#define TRAF_IPSILON    7  /* Ipsilon */
#define TRAF_UMTS_FP    8  /* UMTS Frame Protocol */
#define TRAF_GPRS_NS    9  /* GPRS Network Services */
#define TRAF_SSCOP     10  /* SSCOP */
 
/*
 * Traffic subtypes.
 */
#define TRAF_ST_UNKNOWN     0   /* Unknown */
 
/*
 * For TRAF_VCMX:
 */
#define TRAF_ST_VCMX_802_3_FCS   1  /* 802.3 with an FCS */
#define TRAF_ST_VCMX_802_4_FCS   2  /* 802.4 with an FCS */
#define TRAF_ST_VCMX_802_5_FCS   3  /* 802.5 with an FCS */
#define TRAF_ST_VCMX_FDDI_FCS    4  /* FDDI with an FCS */
#define TRAF_ST_VCMX_802_6_FCS   5  /* 802.6 with an FCS */
#define TRAF_ST_VCMX_802_3       7  /* 802.3 without an FCS */
#define TRAF_ST_VCMX_802_4       8  /* 802.4 without an FCS */
#define TRAF_ST_VCMX_802_5       9  /* 802.5 without an FCS */
#define TRAF_ST_VCMX_FDDI       10  /* FDDI without an FCS */
#define TRAF_ST_VCMX_802_6      11  /* 802.6 without an FCS */
#define TRAF_ST_VCMX_FRAGMENTS  12  /* Fragments */
#define TRAF_ST_VCMX_BPDU       13  /* BPDU */
 
/*
 * For TRAF_LANE:
 */
#define TRAF_ST_LANE_LE_CTRL     1  /* LANE: LE Ctrl */
#define TRAF_ST_LANE_802_3       2  /* LANE: 802.3 */
#define TRAF_ST_LANE_802_5       3  /* LANE: 802.5 */
#define TRAF_ST_LANE_802_3_MC    4  /* LANE: 802.3 multicast */
#define TRAF_ST_LANE_802_5_MC    5  /* LANE: 802.5 multicast */
 
/*
 * For TRAF_IPSILON:
 */
#define TRAF_ST_IPSILON_FT0      1  /* Ipsilon: Flow Type 0 */
#define TRAF_ST_IPSILON_FT1      2  /* Ipsilon: Flow Type 1 */
#define TRAF_ST_IPSILON_FT2      3  /* Ipsilon: Flow Type 2 */
 
struct atm_phdr {
    uint32_t flags;      /* status flags */
    uint8_t aal;        /* AAL of the traffic */
    uint8_t type;       /* traffic type */
    uint8_t subtype;    /* traffic subtype */
    uint16_t vpi;        /* virtual path identifier */
    uint16_t vci;        /* virtual circuit identifier */
    uint8_t aal2_cid;   /* channel id */
    uint16_t channel;    /* link: 0 for DTE->DCE, 1 for DCE->DTE */
    uint16_t cells;      /* number of cells */
    uint16_t aal5t_u2u;  /* user-to-user indicator */
    uint16_t aal5t_len;  /* length of the packet */
    uint32_t aal5t_chksum;   /* checksum for AAL5 packet */
};
 
/* Packet "pseudo-header" for the output from "wandsession", "wannext",
   "wandisplay", and similar commands on Lucent/Ascend access equipment. */
 
#define ASCEND_MAX_STR_LEN 64
 
#define ASCEND_PFX_WDS_X    1
#define ASCEND_PFX_WDS_R    2
#define ASCEND_PFX_WDD      3
#define ASCEND_PFX_ISDN_X   4
#define ASCEND_PFX_ISDN_R   5
#define ASCEND_PFX_ETHER    6
 
struct ascend_phdr {
    uint16_t type;                         /* ASCEND_PFX_*, as defined above */
    char    user[ASCEND_MAX_STR_LEN];     /* Username, from wandsession header */
    uint32_t sess;                         /* Session number, from wandsession header */
    char    call_num[ASCEND_MAX_STR_LEN]; /* Called number, from WDD header */
    uint32_t chunk;                        /* Chunk number, from WDD header */
    uint32_t task;                         /* Task number */
};
 
/* Packet "pseudo-header" for point-to-point links with direction flags. */
struct p2p_phdr {
    bool sent;
};
 
/*
 * Packet "pseudo-header" information for 802.11.
 * Radio information is only present in this form for
 * WTAP_ENCAP_IEEE_802_11_WITH_RADIO.  This is used for file formats in
 * which the radio information isn't provided as a pseudo-header in the
 * packet data.  It is also used by the dissectors for the pseudo-headers
 * in the packet data to supply radio information, in a form independent
 * of the file format and pseudo-header format, to the "802.11 radio"
 * dissector.
 *
 * Signal strength, etc. information:
 *
 * Raw signal strength can be measured in milliwatts.
 * It can also be represented as dBm, which is 10 times the log base 10
 * of the signal strength in mW.
 *
 * The Receive Signal Strength Indicator is an integer in the range 0 to 255.
 * The actual RSSI value for a given signal strength is dependent on the
 * vendor (and perhaps on the adapter).  The maximum possible RSSI value
 * is also dependent on the vendor and perhaps the adapter.
 *
 * The signal strength can be represented as a percentage, which is 100
 * times the ratio of the RSSI and the maximum RSSI.
 */
 
/*
 * PHY types.
 */
#define PHDR_802_11_PHY_UNKNOWN        0 /* PHY not known */
#define PHDR_802_11_PHY_11_FHSS        1 /* 802.11 FHSS */
#define PHDR_802_11_PHY_11_IR          2 /* 802.11 IR */
#define PHDR_802_11_PHY_11_DSSS        3 /* 802.11 DSSS */
#define PHDR_802_11_PHY_11B            4 /* 802.11b */
#define PHDR_802_11_PHY_11A            5 /* 802.11a */
#define PHDR_802_11_PHY_11G            6 /* 802.11g */
#define PHDR_802_11_PHY_11N            7 /* 802.11n */
#define PHDR_802_11_PHY_11AC           8 /* 802.11ac */
#define PHDR_802_11_PHY_11AD           9 /* 802.11ad */
#define PHDR_802_11_PHY_11AH          10 /* 802.11ah */
#define PHDR_802_11_PHY_11AX          11 /* 802.11ax */
#define PHDR_802_11_PHY_11BE          12 /* 802.11be - EHT */
 
/*
 * PHY-specific information.
 */
 
/*
 * 802.11 legacy FHSS.
 */
struct ieee_802_11_fhss {
    unsigned has_hop_set:1;
    unsigned has_hop_pattern:1;
    unsigned has_hop_index:1;
 
    uint8_t  hop_set;        /* Hop set */
    uint8_t  hop_pattern;    /* Hop pattern */
    uint8_t  hop_index;      /* Hop index */
};
 
/*
 * 802.11b.
 */
struct ieee_802_11b {
    /* Which of this information is present? */
    unsigned has_short_preamble:1;
 
    bool short_preamble; /* Short preamble */
};
 
/*
 * 802.11a.
 */
struct ieee_802_11a {
    /* Which of this information is present? */
    unsigned has_channel_type:1;
    unsigned has_turbo_type:1;
 
    unsigned channel_type:2;
    unsigned turbo_type:2;
};
 
/*
 * Channel type values.
 */
#define PHDR_802_11A_CHANNEL_TYPE_NORMAL           0
#define PHDR_802_11A_CHANNEL_TYPE_HALF_CLOCKED     1
#define PHDR_802_11A_CHANNEL_TYPE_QUARTER_CLOCKED  2
 
/*
 * "Turbo" is an Atheros proprietary extension with 40 MHz-wide channels.
 * It can be dynamic or static.
 *
 * See
 *
 *    http://wifi-insider.com/atheros/turbo.htm
 */
#define PHDR_802_11A_TURBO_TYPE_NORMAL           0
#define PHDR_802_11A_TURBO_TYPE_TURBO            1  /* If we don't know whether it's static or dynamic */
#define PHDR_802_11A_TURBO_TYPE_DYNAMIC_TURBO    2
#define PHDR_802_11A_TURBO_TYPE_STATIC_TURBO     3
 
/*
 * 802.11g.
 *
 * This should only be used for packets sent using OFDM; packets
 * sent on an 11g network using DSSS should have the PHY set to
 * 11b.
 */
struct ieee_802_11g {
    /* Which of this information is present? */
    unsigned has_mode:1;
 
    uint32_t mode;           /* Various proprietary extensions */
};
 
/*
 * Mode values.
 */
#define PHDR_802_11G_MODE_NORMAL    0
#define PHDR_802_11G_MODE_SUPER_G   1  /* Atheros Super G */
 
/*
 * 802.11n.
 */
struct ieee_802_11n {
    /* Which of this information is present? */
    unsigned has_mcs_index:1;
    unsigned has_bandwidth:1;
    unsigned has_short_gi:1;
    unsigned has_greenfield:1;
    unsigned has_fec:1;
    unsigned has_stbc_streams:1;
    unsigned has_ness:1;
 
    uint16_t mcs_index;      /* MCS index */
    unsigned bandwidth;      /* Bandwidth = 20 MHz, 40 MHz, etc. */
    unsigned short_gi:1;     /* True for short guard interval */
    unsigned greenfield:1;   /* True for greenfield, short for mixed */
    unsigned fec:1;          /* FEC: 0 = BCC, 1 = LDPC */
    unsigned stbc_streams:2; /* Number of STBC streams */
    unsigned ness;           /* Number of extension spatial streams */
};
 
/*
 * Bandwidth values; used for both 11n and 11ac.
 */
#define PHDR_802_11_BANDWIDTH_20_MHZ   0  /* 20 MHz */
#define PHDR_802_11_BANDWIDTH_40_MHZ   1  /* 40 MHz */
#define PHDR_802_11_BANDWIDTH_20_20L   2  /* 20 + 20L, 40 MHz */
#define PHDR_802_11_BANDWIDTH_20_20U   3  /* 20 + 20U, 40 MHz */
#define PHDR_802_11_BANDWIDTH_80_MHZ   4  /* 80 MHz */
#define PHDR_802_11_BANDWIDTH_40_40L   5  /* 40 + 40L MHz, 80 MHz */
#define PHDR_802_11_BANDWIDTH_40_40U   6  /* 40 + 40U MHz, 80 MHz */
#define PHDR_802_11_BANDWIDTH_20LL     7  /* ???, 80 MHz */
#define PHDR_802_11_BANDWIDTH_20LU     8  /* ???, 80 MHz */
#define PHDR_802_11_BANDWIDTH_20UL     9  /* ???, 80 MHz */
#define PHDR_802_11_BANDWIDTH_20UU     10 /* ???, 80 MHz */
#define PHDR_802_11_BANDWIDTH_160_MHZ  11 /* 160 MHz */
#define PHDR_802_11_BANDWIDTH_80_80L   12 /* 80 + 80L, 160 MHz */
#define PHDR_802_11_BANDWIDTH_80_80U   13 /* 80 + 80U, 160 MHz */
#define PHDR_802_11_BANDWIDTH_40LL     14 /* ???, 160 MHz */
#define PHDR_802_11_BANDWIDTH_40LU     15 /* ???, 160 MHz */
#define PHDR_802_11_BANDWIDTH_40UL     16 /* ???, 160 MHz */
#define PHDR_802_11_BANDWIDTH_40UU     17 /* ???, 160 MHz */
#define PHDR_802_11_BANDWIDTH_20LLL    18 /* ???, 160 MHz */
#define PHDR_802_11_BANDWIDTH_20LLU    19 /* ???, 160 MHz */
#define PHDR_802_11_BANDWIDTH_20LUL    20 /* ???, 160 MHz */
#define PHDR_802_11_BANDWIDTH_20LUU    21 /* ???, 160 MHz */
#define PHDR_802_11_BANDWIDTH_20ULL    22 /* ???, 160 MHz */
#define PHDR_802_11_BANDWIDTH_20ULU    23 /* ???, 160 MHz */
#define PHDR_802_11_BANDWIDTH_20UUL    24 /* ???, 160 MHz */
#define PHDR_802_11_BANDWIDTH_20UUU    25 /* ???, 160 MHz */
 
/*
 * 802.11ac.
 */
struct ieee_802_11ac {
    /* Which of this information is present? */
    unsigned has_stbc:1;
    unsigned has_txop_ps_not_allowed:1;
    unsigned has_short_gi:1;
    unsigned has_short_gi_nsym_disambig:1;
    unsigned has_ldpc_extra_ofdm_symbol:1;
    unsigned has_beamformed:1;
    unsigned has_bandwidth:1;
    unsigned has_fec:1;
    unsigned has_group_id:1;
    unsigned has_partial_aid:1;
 
    unsigned stbc:1;         /* 1 if all spatial streams have STBC */
    unsigned txop_ps_not_allowed:1;
    unsigned short_gi:1;     /* True for short guard interval */
    unsigned short_gi_nsym_disambig:1;
    unsigned ldpc_extra_ofdm_symbol:1;
    unsigned beamformed:1;
    uint8_t  bandwidth;      /* Bandwidth = 20 MHz, 40 MHz, etc. */
    uint8_t  mcs[4];         /* MCS index per user */
    uint8_t  nss[4];         /* NSS per user */
    uint8_t  fec;            /* Bit array of FEC per user: 0 = BCC, 1 = LDPC */
    uint8_t  group_id;
    uint16_t partial_aid;
};
 
/*
 * 802.11ad.
 */
 
/*
 * Min and Max frequencies for 802.11ad and a macro for checking for 802.11ad.
 */
 
#define PHDR_802_11AD_MIN_FREQUENCY    57000
#define PHDR_802_11AD_MAX_FREQUENCY    71000
 
#define IS_80211AD(frequency) (((frequency) >= PHDR_802_11AD_MIN_FREQUENCY) &&\
                               ((frequency) <= PHDR_802_11AD_MAX_FREQUENCY))
 
struct ieee_802_11ad {
    /* Which of this information is present? */
    unsigned has_mcs_index:1;
 
    uint8_t  mcs;            /* MCS index */
};
 
/*
 * 802.11ax (HE).
 */
struct ieee_802_11ax {
    /* Which of this information is present? */
    unsigned has_mcs_index:1;
    unsigned has_bwru:1;
    unsigned has_gi:1;
 
    uint8_t  nsts:4;         /* Number of Space-time Streams */
    uint8_t  mcs:4;          /* MCS index */
    uint8_t  bwru:4;         /* Bandwidth/RU allocation */
    uint8_t  gi:2;           /* Guard Interval */
};
 
/*
 * 802.11be (EHT).
 */
struct ieee_802_11be_user_info {
    unsigned sta_id_known:1;
    unsigned mcs_known:1;
    unsigned coding_known:1;
    unsigned rsv_known:1;
    unsigned nsts_known:1;
    unsigned bf_known:1;
    unsigned spatial_config_known:1;
    unsigned data_for_this_user:1;
    unsigned sta_id:11;
    unsigned ldpc_coding:1;
    unsigned mcs:4;
    unsigned nsts:4;
    unsigned rsv:1;
    unsigned beamform:1;
    unsigned rsv2:2;
};
 
#define PHDR_802_11BE_MAX_USERS 4
struct ieee_802_11be {
    /* Which of this information is present? */
    unsigned has_ru_mru_size:1;
    unsigned has_gi:1;
    unsigned has_bandwidth:1;
 
    uint8_t  bandwidth;
    uint8_t  ru_mru_size:4;  /* RU/MRU allocation */
    uint8_t  gi:2;           /* Guard Interval */
    uint8_t  num_users;
    struct ieee_802_11be_user_info user[PHDR_802_11BE_MAX_USERS]; /* Adding info for only upto 4 users */
};
 
 
union ieee_802_11_phy_info {
    struct ieee_802_11_fhss info_11_fhss;
    struct ieee_802_11b info_11b;
    struct ieee_802_11a info_11a;
    struct ieee_802_11g info_11g;
    struct ieee_802_11n info_11n;
    struct ieee_802_11ac info_11ac;
    struct ieee_802_11ad info_11ad;
    struct ieee_802_11ax info_11ax;
    struct ieee_802_11be info_11be;
};
 
struct ieee_802_11_phdr {
    int      fcs_len;          /* Number of bytes of FCS - -1 means "unknown" */
    unsigned decrypted:1;      /* true if frame is decrypted even if "protected" bit is set */
    unsigned datapad:1;        /* true if frame has padding between 802.11 header and payload */
    unsigned no_a_msdus:1;     /* true if we should ignore the A-MSDU bit */
    unsigned phy;              /* PHY type */
    union ieee_802_11_phy_info phy_info;
 
    /* Which of this information is present? */
    unsigned has_channel:1;
    unsigned has_frequency:1;
    unsigned has_data_rate:1;
    unsigned has_signal_percent:1;
    unsigned has_noise_percent:1;
    unsigned has_signal_dbm:1;
    unsigned has_noise_dbm:1;
    unsigned has_signal_db:1;
    unsigned has_noise_db:1;
    unsigned has_tsf_timestamp:1;
    unsigned has_aggregate_info:1;        /* aggregate flags and ID */
    unsigned has_zero_length_psdu_type:1; /* zero-length PSDU type */
 
    uint16_t channel;                     /* Channel number */
    uint32_t frequency;                   /* Channel center frequency */
    uint16_t data_rate;                   /* Data rate, in .5 Mb/s units */
    uint8_t  signal_percent;              /* Signal level, as a percentage */
    uint8_t  noise_percent;               /* Noise level, as a percentage */
    int8_t   signal_dbm;                  /* Signal level, in dBm */
    int8_t   noise_dbm;                   /* Noise level, in dBm */
    uint8_t  signal_db;                   /* Signal level, in dB from an arbitrary point */
    uint8_t  noise_db;                    /* Noise level, in dB from an arbitrary point */
    uint64_t tsf_timestamp;
    uint32_t aggregate_flags;             /* A-MPDU flags */
    uint32_t aggregate_id;                /* ID for A-MPDU reassembly */
    uint8_t  zero_length_psdu_type;       /* type of zero-length PSDU */
};
 
/*
 * A-MPDU flags.
 */
#define PHDR_802_11_LAST_PART_OF_A_MPDU    0x00000001 /* this is the last part of an A-MPDU */
#define PHDR_802_11_A_MPDU_DELIM_CRC_ERROR 0x00000002 /* delimiter CRC error after this part */
 
/*
 * Zero-length PSDU types.
 */
#define PHDR_802_11_SOUNDING_PSDU                 0 /* sounding PPDU */
#define PHDR_802_11_DATA_NOT_CAPTURED             1 /* data not captured, (e.g. multi-user PPDU) */
#define PHDR_802_11_0_LENGTH_PSDU_VENDOR_SPECIFIC 0xff
 
/* Packet "pseudo-header" for the output from CoSine L2 debug output. */
 
#define COSINE_MAX_IF_NAME_LEN  128
 
#define COSINE_ENCAP_TEST      1
#define COSINE_ENCAP_PPoATM    2
#define COSINE_ENCAP_PPoFR     3
#define COSINE_ENCAP_ATM       4
#define COSINE_ENCAP_FR        5
#define COSINE_ENCAP_HDLC      6
#define COSINE_ENCAP_PPP       7
#define COSINE_ENCAP_ETH       8
#define COSINE_ENCAP_UNKNOWN  99
 
#define COSINE_DIR_TX 1
#define COSINE_DIR_RX 2
 
struct cosine_phdr {
    uint8_t encap;      /* COSINE_ENCAP_* as defined above */
    uint8_t direction;  /* COSINE_DIR_*, as defined above */
    char    if_name[COSINE_MAX_IF_NAME_LEN];  /* Encap & Logical I/F name */
    uint16_t pro;        /* Protocol */
    uint16_t off;        /* Offset */
    uint16_t pri;        /* Priority */
    uint16_t rm;         /* Rate Marking */
    uint16_t err;        /* Error Code */
};
 
/* Packet "pseudo-header" for IrDA capture files. */
 
/*
 * Direction of the packet
 */
#define IRDA_INCOMING       0x0000
#define IRDA_OUTGOING       0x0004
 
/*
 * "Inline" log messages produced by IrCOMM2k on Windows
 */
#define IRDA_LOG_MESSAGE    0x0100  /* log message */
#define IRDA_MISSED_MSG     0x0101  /* missed log entry or frame */
 
/*
 * Differentiate between frames and log messages
 */
#define IRDA_CLASS_FRAME    0x0000
#define IRDA_CLASS_LOG      0x0100
#define IRDA_CLASS_MASK     0xFF00
 
struct irda_phdr {
    uint16_t pkttype;    /* packet type */
};
 
/* Packet "pseudo-header" for nettl (HP-UX) capture files. */
 
struct nettl_phdr {
    uint16_t subsys;
    uint32_t devid;
    uint32_t kind;
    int32_t pid;
    uint32_t uid;
};
 
/* Packet "pseudo-header" for MTP2 files. */
 
#define MTP2_ANNEX_A_NOT_USED      0
#define MTP2_ANNEX_A_USED          1
#define MTP2_ANNEX_A_USED_UNKNOWN  2
 
struct mtp2_phdr {
    uint8_t sent;
    uint8_t annex_a_used;
    uint16_t link_number;
};
 
/* Packet "pseudo-header" for K12 files. */
 
typedef union {
    struct {
        uint16_t vp;
        uint16_t vc;
        uint16_t cid;
    } atm;
 
    uint32_t ds0mask;
} k12_input_info_t;
 
struct k12_phdr {
    uint32_t          input;
    const char       *input_name;
    const char       *stack_file;
    uint32_t          input_type;
    k12_input_info_t  input_info;
    uint8_t          *extra_info;
    uint32_t          extra_length;
    void*             stuff;
};
 
#define K12_PORT_DS0S      0x00010008
#define K12_PORT_DS1       0x00100008
#define K12_PORT_ATMPVC    0x01020000
 
struct lapd_phdr {
    uint16_t pkttype;    /* packet type */
    uint8_t we_network;
};
 
struct wtap;
struct catapult_dct2000_phdr
{
    union
    {
        struct isdn_phdr isdn;
        struct atm_phdr  atm;
        struct p2p_phdr  p2p;
    } inner_pseudo_header;
    int64_t      seek_off;
    struct wtap *wth;
};
 
/*
 * Endace Record Format pseudo header
 */
struct erf_phdr {
    uint64_t ts;     /* Time stamp */
    uint8_t type;
    uint8_t flags;
    uint16_t rlen;
    uint16_t lctr;
    uint16_t wlen;
};
 
struct erf_ehdr {
  uint64_t ehdr;
};
 
/*
 * ERF pseudo header with optional subheader
 * (Multichannel or Ethernet)
 */
 
#define MAX_ERF_EHDR 16
 
struct wtap_erf_eth_hdr {
    uint8_t offset;
    uint8_t pad;
};
 
struct erf_mc_phdr {
    struct erf_phdr phdr;
    struct erf_ehdr ehdr_list[MAX_ERF_EHDR];
    union
    {
        struct wtap_erf_eth_hdr eth_hdr;
        uint32_t mc_hdr;
        uint32_t aal2_hdr;
    } subhdr;
};
 
#define SITA_FRAME_DIR_TXED            (0x00)  /* values of sita_phdr.flags */
#define SITA_FRAME_DIR_RXED            (0x01)
#define SITA_FRAME_DIR                 (0x01)  /* mask */
#define SITA_ERROR_NO_BUFFER           (0x80)
 
#define SITA_SIG_DSR                   (0x01)  /* values of sita_phdr.signals */
#define SITA_SIG_DTR                   (0x02)
#define SITA_SIG_CTS                   (0x04)
#define SITA_SIG_RTS                   (0x08)
#define SITA_SIG_DCD                   (0x10)
#define SITA_SIG_UNDEF1                (0x20)
#define SITA_SIG_UNDEF2                (0x40)
#define SITA_SIG_UNDEF3                (0x80)
 
#define SITA_ERROR_TX_UNDERRUN         (0x01)  /* values of sita_phdr.errors2 (if SITA_FRAME_DIR_TXED) */
#define SITA_ERROR_TX_CTS_LOST         (0x02)
#define SITA_ERROR_TX_UART_ERROR       (0x04)
#define SITA_ERROR_TX_RETX_LIMIT       (0x08)
#define SITA_ERROR_TX_UNDEF1           (0x10)
#define SITA_ERROR_TX_UNDEF2           (0x20)
#define SITA_ERROR_TX_UNDEF3           (0x40)
#define SITA_ERROR_TX_UNDEF4           (0x80)
 
#define SITA_ERROR_RX_FRAMING          (0x01)  /* values of sita_phdr.errors1 (if SITA_FRAME_DIR_RXED) */
#define SITA_ERROR_RX_PARITY           (0x02)
#define SITA_ERROR_RX_COLLISION        (0x04)
#define SITA_ERROR_RX_FRAME_LONG       (0x08)
#define SITA_ERROR_RX_FRAME_SHORT      (0x10)
#define SITA_ERROR_RX_UNDEF1           (0x20)
#define SITA_ERROR_RX_UNDEF2           (0x40)
#define SITA_ERROR_RX_UNDEF3           (0x80)
 
#define SITA_ERROR_RX_NONOCTET_ALIGNED (0x01)  /* values of sita_phdr.errors2 (if SITA_FRAME_DIR_RXED) */
#define SITA_ERROR_RX_ABORT            (0x02)
#define SITA_ERROR_RX_CD_LOST          (0x04)
#define SITA_ERROR_RX_DPLL             (0x08)
#define SITA_ERROR_RX_OVERRUN          (0x10)
#define SITA_ERROR_RX_FRAME_LEN_VIOL   (0x20)
#define SITA_ERROR_RX_CRC              (0x40)
#define SITA_ERROR_RX_BREAK            (0x80)
 
#define SITA_PROTO_UNUSED              (0x00)  /* values of sita_phdr.proto */
#define SITA_PROTO_BOP_LAPB            (0x01)
#define SITA_PROTO_ETHERNET            (0x02)
#define SITA_PROTO_ASYNC_INTIO         (0x03)
#define SITA_PROTO_ASYNC_BLKIO         (0x04)
#define SITA_PROTO_ALC                 (0x05)
#define SITA_PROTO_UTS                 (0x06)
#define SITA_PROTO_PPP_HDLC            (0x07)
#define SITA_PROTO_SDLC                (0x08)
#define SITA_PROTO_TOKENRING           (0x09)
#define SITA_PROTO_I2C                 (0x10)
#define SITA_PROTO_DPM_LINK            (0x11)
#define SITA_PROTO_BOP_FRL             (0x12)
 
struct sita_phdr {
    uint8_t sita_flags;
    uint8_t sita_signals;
    uint8_t sita_errors1;
    uint8_t sita_errors2;
    uint8_t sita_proto;
};
 
/*pseudo header for Bluetooth HCI*/
struct bthci_phdr {
    bool      sent;
    uint32_t  channel;
};
 
#define BTHCI_CHANNEL_COMMAND  1
#define BTHCI_CHANNEL_ACL      2
#define BTHCI_CHANNEL_SCO      3
#define BTHCI_CHANNEL_EVENT    4
#define BTHCI_CHANNEL_ISO      5
 
/* pseudo header for WTAP_ENCAP_BLUETOOTH_LINUX_MONITOR */
struct btmon_phdr {
    uint16_t  adapter_id;
    uint16_t  opcode;
};
 
/* pseudo header for WTAP_ENCAP_LAYER1_EVENT */
struct l1event_phdr {
    bool uton;
};
 
/* * I2C pseudo header */
struct i2c_phdr {
    uint8_t is_event;
    uint8_t bus;
    uint32_t flags;
};
 
/* pseudo header for WTAP_ENCAP_GSM_UM */
struct gsm_um_phdr {
    bool uplink;
    uint8_t  channel;
    /* The following are only populated for downlink */
    uint8_t  bsic;
    uint16_t arfcn;
    uint32_t tdma_frame;
    uint8_t  error;
    uint16_t timeshift;
};
 
#define GSM_UM_CHANNEL_UNKNOWN  0
#define GSM_UM_CHANNEL_BCCH     1
#define GSM_UM_CHANNEL_SDCCH    2
#define GSM_UM_CHANNEL_SACCH    3
#define GSM_UM_CHANNEL_FACCH    4
#define GSM_UM_CHANNEL_CCCH     5
#define GSM_UM_CHANNEL_RACH     6
#define GSM_UM_CHANNEL_AGCH     7
#define GSM_UM_CHANNEL_PCH      8
 
/* Pseudo-header for nstrace packets */
struct nstr_phdr {
    int64_t rec_offset;
    int32_t rec_len;
    uint8_t nicno_offset;
    uint8_t nicno_len;
    uint8_t dir_offset;
    uint8_t dir_len;
    uint16_t eth_offset;
    uint8_t pcb_offset;
    uint8_t l_pcb_offset;
    uint8_t rec_type;
    uint8_t vlantag_offset;
    uint8_t coreid_offset;
    uint8_t srcnodeid_offset;
    uint8_t destnodeid_offset;
    uint8_t clflags_offset;
    uint8_t src_vmname_len_offset;
    uint8_t dst_vmname_len_offset;
    uint8_t ns_activity_offset;
    uint8_t data_offset;
};
 
/* Packet "pseudo-header" for Nokia output */
struct nokia_phdr {
    struct eth_phdr eth;
    uint8_t stuff[4];    /* mysterious stuff */
};
 
#define LLCP_PHDR_FLAG_SENT 0
struct llcp_phdr {
    uint8_t adapter;
    uint8_t flags;
};
 
/* pseudo header for WTAP_ENCAP_LOGCAT */
struct logcat_phdr {
    int version;
};
 
/* Packet "pseudo-header" information for header data from NetMon files. */
 
struct netmon_phdr {
    uint8_t* title;          /* Comment title, as a null-terminated UTF-8 string */
    uint32_t descLength;     /* Number of bytes in the comment description */
    uint8_t* description;    /* Comment description, in ASCII RTF */
    unsigned sub_encap;        /* "Real" encap value for the record that will be used once pseudo header data is display */
    union sub_wtap_pseudo_header {
        struct eth_phdr     eth;
        struct atm_phdr     atm;
        struct ieee_802_11_phdr ieee_802_11;
    } subheader;
};
 
/* File "pseudo-header" for BER data files. */
struct ber_phdr {
    const char *pathname;   /* Path name of file. */
};
 
union wtap_pseudo_header {
    struct eth_phdr     eth;
    struct dte_dce_phdr dte_dce;
    struct isdn_phdr    isdn;
    struct atm_phdr     atm;
    struct ascend_phdr  ascend;
    struct p2p_phdr     p2p;
    struct ieee_802_11_phdr ieee_802_11;
    struct cosine_phdr  cosine;
    struct irda_phdr    irda;
    struct nettl_phdr   nettl;
    struct mtp2_phdr    mtp2;
    struct k12_phdr     k12;
    struct lapd_phdr    lapd;
    struct catapult_dct2000_phdr dct2000;
    struct erf_mc_phdr  erf;
    struct sita_phdr    sita;
    struct bthci_phdr   bthci;
    struct btmon_phdr   btmon;
    struct l1event_phdr l1event;
    struct i2c_phdr     i2c;
    struct gsm_um_phdr  gsm_um;
    struct nstr_phdr    nstr;
    struct nokia_phdr   nokia;
    struct llcp_phdr    llcp;
    struct logcat_phdr  logcat;
    struct netmon_phdr  netmon;
    struct ber_phdr     ber;
};
 
/*
 * Record type values.
 *
 * This list will expand over time, so don't assume everything will
 * forever be one of the types listed below.
 *
 * For file-type-specific records, the "ftsrec" field of the pseudo-header
 * contains a file-type-specific subtype value, such as a block type for
 * a pcapng file.
 *
 * An "event" is an indication that something happened during the capture
 * process, such as a status transition of some sort on the network.
 * These should, ideally, have a time stamp and, if they're relevant to
 * a particular interface on a multi-interface capture, should also have
 * an interface ID.  The data for the event is file-type-specific and
 * subtype-specific.  These should be dissected and displayed just as
 * packets are.
 *
 * A "report" supplies information not corresponding to an event;
 * for example, a pcapng Interface Statistics Block would be a report,
 * as it doesn't correspond to something happening on the network.
 * They may have a time stamp, and should be dissected and displayed
 * just as packets are.
 *
 * We distinguish between "events" and "reports" so that, for example,
 * the packet display can show the delta between a packet and an event
 * but not show the delta between a packet and a report, as the time
 * stamp of a report may not correspond to anything interesting on
 * the network but the time stamp of an event would.
 *
 * XXX - are there any file-type-specific records that *shouldn't* be
 * dissected and displayed?  If so, they should be parsed and the
 * information in them stored somewhere, and used somewhere, whether
 * it's just used when saving the file in its native format or also
 * used to parse *other* file-type-specific records.
 *
 * These would be similar to, for example, pcapng Interface Description
 * Blocks, for which the position within the file is significant only
 * in that an IDB for an interface must appear before any packets from
 * the interface; the fact that an IDB appears at some point doesn't
 * necessarily mean something happened in the capture at that point.
 * Name Resolution Blocks are another example of such a record.
 *
 * (XXX - if you want to have a record that says "this interface first
 * showed up at this time", that needs to be a separate record type
 * from the IDB.  We *could* add a "New Interface Description Block",
 * with a time stamp, for that purpose, but we'd *still* have to
 * provide IDBs for those interfaces, for compatibility with programs
 * that don't know about the NIDB.  An ISB with only an isb_starttime
 * option would suffice for this purpose, so nothing needs to be
 * added to pcapng for this.)
 */
#define REC_TYPE_PACKET                 0    
#define REC_TYPE_FT_SPECIFIC_EVENT      1    
#define REC_TYPE_FT_SPECIFIC_REPORT     2    
#define REC_TYPE_SYSCALL                3    
#define REC_TYPE_SYSTEMD_JOURNAL_EXPORT 4    
#define REC_TYPE_CUSTOM_BLOCK           5    
typedef struct {
    uint32_t  caplen;           /* data length in the file */
    uint32_t  len;              /* data length on the wire */
    int       pkt_encap;        /* WTAP_ENCAP_ value for this packet */
                                /* pcapng variables */
    uint32_t  interface_id;     /* identifier of the interface. */
                                /* options */
 
    union wtap_pseudo_header  pseudo_header;
} wtap_packet_header;
 
/*
 * The pcapng specification says "The word is encoded as an unsigned
 * 32-bit integer, using the endianness of the Section Header Block
 * scope it is in. In the following table, the bits are numbered with
 * 0 being the most-significant bit and 31 being the least-significant
 * bit of the 32-bit unsigned integer."
 *
 * From that, the direction, in bits 0 and 1, is at the *top* of the word.
 *
 * However, several implementations, such as:
 *
 *   the Wireshark pcapng file reading code;
 *
 *   macOS libpcap and tcpdump;
 *
 *   text2pcap;
 *
 *   and probably the software that generated the capture in bug 11665;
 *
 * treat 0 as the *least*-significant bit and bit 31 being the *most*-
 * significant bit of the flags word, and put the direction at the
 * *bottom* of the word.
 *
 * For now, we go with the known implementations.
 */
 
/* Direction field of the packet flags */
#define PACK_FLAGS_DIRECTION_MASK     0x00000003 /* unshifted */
#define PACK_FLAGS_DIRECTION_SHIFT    0
#define PACK_FLAGS_DIRECTION(pack_flags) (((pack_flags) & PACK_FLAGS_DIRECTION_MASK) >> PACK_FLAGS_DIRECTION_SHIFT)
#define PACK_FLAGS_DIRECTION_UNKNOWN  0
#define PACK_FLAGS_DIRECTION_INBOUND  1
#define PACK_FLAGS_DIRECTION_OUTBOUND 2
 
/* Reception type field of the packet flags */
#define PACK_FLAGS_RECEPTION_TYPE_MASK        0x0000001C /* unshifted */
#define PACK_FLAGS_RECEPTION_TYPE_SHIFT       2
#define PACK_FLAGS_RECEPTION_TYPE(pack_flags) (((pack_flags) & PACK_FLAGS_RECEPTION_TYPE_MASK) >> PACK_FLAGS_RECEPTION_TYPE_SHIFT)
#define PACK_FLAGS_RECEPTION_TYPE_UNSPECIFIED 0
#define PACK_FLAGS_RECEPTION_TYPE_UNICAST     1
#define PACK_FLAGS_RECEPTION_TYPE_MULTICAST   2
#define PACK_FLAGS_RECEPTION_TYPE_BROADCAST   3
#define PACK_FLAGS_RECEPTION_TYPE_PROMISCUOUS 4
 
/* FCS length field of the packet flags */
#define PACK_FLAGS_FCS_LENGTH_MASK                        0x000001E0 /* unshifted */
#define PACK_FLAGS_FCS_LENGTH_SHIFT                       5
#define PACK_FLAGS_FCS_LENGTH(pack_flags) (((pack_flags) & PACK_FLAGS_FCS_LENGTH_MASK) >> PACK_FLAGS_FCS_LENGTH_SHIFT)
 
/* Reserved bits of the packet flags */
#define PACK_FLAGS_RESERVED_MASK                          0x0000FE00
 
/* Link-layer-dependent errors of the packet flags */
 
/* For Ethernet and possibly some other network types */
#define PACK_FLAGS_CRC_ERROR                   0x01000000
#define PACK_FLAGS_PACKET_TOO_LONG             0x02000000
#define PACK_FLAGS_PACKET_TOO_SHORT            0x04000000
#define PACK_FLAGS_WRONG_INTER_FRAME_GAP       0x08000000
#define PACK_FLAGS_UNALIGNED_FRAME             0x10000000
#define PACK_FLAGS_START_FRAME_DELIMITER_ERROR 0x20000000
#define PACK_FLAGS_PREAMBLE_ERROR              0x40000000
#define PACK_FLAGS_SYMBOL_ERROR                0x80000000
 
/* Construct a pack_flags value from its subfield values */
#define PACK_FLAGS_VALUE(direction, reception_type, fcs_length, ll_dependent_errors) \
    (((direction) << 30) | \
    ((reception_type) << 27) | \
    ((fcs_length) << 23) | \
    (ll_dependent_errors))
 
typedef struct {
    unsigned  record_type;      /* the type of record this is - file type-specific value */
    uint32_t  record_len;       /* length of the record */
} wtap_ft_specific_header;
 
typedef struct {
    const char *pathname;       /* Path name of file. */
    unsigned  record_type;      /* XXX match ft_specific_record_phdr so that we chain off of packet-pcapng_block for now. */
    int       byte_order;
    /* uint32_t sentinel; */
    uint64_t  timestamp;        /* ns since epoch - XXX dup of ts */
    uint64_t  thread_id;
    uint32_t  event_len;        /* length of the event */
    uint32_t  event_filelen;    /* event data length in the file */
    uint16_t  event_type;
    uint32_t  nparams;          /* number of parameters of the event */
    uint16_t  cpu_id;
    /* ... Event ... */
} wtap_syscall_header;
 
typedef struct {
    uint32_t  record_len;       /* length of the record */
} wtap_systemd_journal_export_header;
 
typedef struct {
    uint32_t  length;           /* length of the record */
    uint32_t  pen;              /* private enterprise number */
    bool      copy_allowed;     /* CB can be written */
    union {
        struct nflx {
            uint32_t  type;             /* block type */
            uint32_t  skipped;          /* Used if type == BBLOG_TYPE_SKIPPED_BLOCK */
        } nflx_custom_data_header;
    } custom_data_header;
} wtap_custom_block_header;
 
#define BBLOG_TYPE_EVENT_BLOCK   1
#define BBLOG_TYPE_SKIPPED_BLOCK 2
 
/*
 * The largest nstime.secs value that can be put into an unsigned
 * 32-bit quantity.
 *
 * We assume that time_t is signed; it is signed on Windows/MSVC and
 * on many UN*Xes.
 *
 * So, if time_t is 32-bit, we define this as INT32_MAX, as that's
 * the largest value a time_t can have, and it fits in an unsigned
 * 32-bit quantity.  If it's 64-bit or larger, we define this as
 * UINT32_MAX, as, even if it's signed, it can be as large as
 * UINT32_MAX, and that's the largest value that can fit in
 * a 32-bit unsigned quantity.
 *
 * Comparing against this, rather than against G_MAXINT2, when checking
 * whether a time stamp will fit in a 32-bit unsigned integer seconds
 * field in a capture file being written avoids signed vs. unsigned
 * warnings if time_t is a signed 32-bit type.
 *
 * XXX - what if time_t is unsigned?  Are there any platforms where
 * it is?
 */
#define WTAP_NSTIME_32BIT_SECS_MAX ((time_t)(sizeof(time_t) > sizeof(int32_t) ? UINT32_MAX : INT32_MAX))
 
typedef struct wtap_rec {
    unsigned  rec_type;          /* what type of record is this? */
    uint32_t  presence_flags;    /* what stuff do we have? */
    unsigned  section_number;    /* section, within file, containing this record */
    nstime_t  ts;                /* time stamp */
    int       tsprec;            /* WTAP_TSPREC_ value for this record */
    nstime_t  ts_rel_cap;        /* time stamp relative from capture start */
    bool      ts_rel_cap_valid;  /* is ts_rel_cap valid and can be used? */
    union {
        wtap_packet_header packet_header;
        wtap_ft_specific_header ft_specific_header;
        wtap_syscall_header syscall_header;
        wtap_systemd_journal_export_header systemd_journal_export_header;
        wtap_custom_block_header custom_block_header;
    } rec_header;
 
    /*
     * XXX - some if not all of the rec_header information may belong
     * here, or may already be here.  Eliminating rec_header in favor
     * of this might simplify the process of adding new record/block
     * types.
     *
     * It also has a type field that's somewhat equivalent to rec_type.
     *
     * It's null for some record types.
     */
    wtap_block_t block;          /* block information */
    bool block_was_modified;     /* true if ANY aspect of the block has been modified */
 
    /*
     * We use a Buffer so that we don't have to allocate and free
     * a buffer for the options for each record.
     */
    Buffer    options_buf;       /* file-type specific data */
} wtap_rec;
 
/*
 * Bits in presence_flags, indicating which of the fields we have.
 *
 * For the time stamp, we may need some more flags to indicate
 * whether the time stamp is an absolute date-and-time stamp, an
 * absolute time-only stamp (which can make relative time
 * calculations tricky, as you could in theory have two time
 * stamps separated by an unknown number of days), or a time stamp
 * relative to some unspecified time in the past (see mpeg.c).
 *
 * There is no presence flag for len - there has to be *some* length
 * value for the packet.  (The "captured length" can be missing if
 * the file format doesn't report a captured length distinct from
 * the on-the-network length because the application(s) producing those
 * files don't support slicing packets.)
 *
 * There could be a presence flag for the packet encapsulation - if it's
 * absent, use the file encapsulation - but it's not clear that's useful;
 * we currently do that in the module for the file format.
 *
 * Only WTAP_HAS_TS and WTAP_HAS_SECTION_NUMBER apply to all record types.
 */
#define WTAP_HAS_TS             0x00000001  
#define WTAP_HAS_CAP_LEN        0x00000002  
#define WTAP_HAS_INTERFACE_ID   0x00000004  
#define WTAP_HAS_SECTION_NUMBER 0x00000008  
/*
 * The old max name length define, both for backwards compatibility and because
 * other name types (in epan) use it. While Name Resolution Blocks (NRBs) only
 * support IPv4 and IPv6 currently, they could later support other name types.
 */
#ifndef MAXNAMELEN
#define MAXNAMELEN      64  /* max name length (most names: DNS labels, services, eth) */
#endif
 
#ifndef MAXDNSNAMELEN
#define MAXDNSNAMELEN   256 /* max total length of a domain name in DNS */
#endif
 
typedef struct hashipv4 {
    unsigned          addr;
    uint8_t           flags;          /* B0 dummy_entry, B1 resolve, B2 If the address is used in the trace */
    char              ip[WS_INET_ADDRSTRLEN];
    char              name[MAXDNSNAMELEN];
    char              cidr_addr[WS_INET_CIDRADDRSTRLEN];
} hashipv4_t;
 
typedef struct hashipv6 {
    uint8_t           addr[16];
    uint8_t           flags;          /* B0 dummy_entry, B1 resolve, B2 If the address is used in the trace */
    char              ip6[WS_INET6_ADDRSTRLEN];
    char              name[MAXDNSNAMELEN];
} hashipv6_t;
 
typedef struct addrinfo_lists {
    GList      *ipv4_addr_list; 
    GList      *ipv6_addr_list; 
} addrinfo_lists_t;
 
typedef struct wtap_dump_params {
    int         encap;                      
    int         snaplen;                    
    int         tsprec;                     
    GArray     *shb_hdrs;                   
    const GArray *shb_iface_to_global;      
    wtapng_iface_descriptions_t *idb_inf;   
    const GArray *nrbs_growing;             
    GArray     *dsbs_initial;               
    const GArray *dsbs_growing;             
    const GArray *mevs_growing;             
    bool        dont_copy_idbs;             
} wtap_dump_params;
 
/* Zero-initializer for wtap_dump_params. */
#define WTAP_DUMP_PARAMS_INIT {.snaplen=0}
 
struct wtap_dumper;
 
typedef struct wtap wtap;
typedef struct wtap_dumper wtap_dumper;
 
typedef struct wtap_reader *FILE_T;
 
/* Similar to the wtap_open_routine_info for open routines, the following
 * wtap_wslua_file_info struct is used by wslua code for Lua-based file writers.
 *
 * This concept is necessary because when wslua goes to invoke the
 * registered dump/write_open routine callback in Lua, it needs the ref number representing
 * the hooked function inside Lua.  This will be stored in the thing pointed to
 * by the void* data here.  This 'data' pointer will be copied into the
 * wtap_dumper struct's 'void* data' member when calling the dump_open function,
 * which is how wslua finally retrieves it.  Unlike wtap_dumper's 'priv' member, its
 * 'data' member is not free'd in wtap_dump_close().
 */
typedef struct wtap_wslua_file_info {
    int (*wslua_can_write_encap)(int, void*);   /* a can_write_encap func for wslua uses */
    void* wslua_data;                           /* holds the wslua data */
} wtap_wslua_file_info_t;
 
/*
 * For registering extensions used for file formats.
 *
 * These items are used in dialogs for opening files, so that
 * the user can ask to see all capture files (as identified
 * by file extension) or particular types of capture files.
 *
 * Each item has a human-readable description of the file types
 * (possibly more than one!) that use all of this set of extensions,
 * a flag indicating whether it's a capture file or just some file
 * whose contents we can dissect, and a list of extensions files of
 * that type might have.
 *
 * Note that entries in this table do *not* necessarily correspoond
 * to single file types; for example, the entry that lists just "cap"
 * is for several file formats, all of which use the extension ".cap".
 *
 * Also note that a given extension may appear in multiple entries;
 * for example, "cap" (again!) is in an entry for some file types
 * that use only ".cap" and in entries for file types that use
 * ".cap" and some other extensions, and ".trc" is used both for
 * DOS Sniffer Token Ring captures ("trc") and EyeSDN USB ISDN
 * trace files ("tr{a}c{e}").
 *
 * Some entries aren't for capture file types, they're just generic types,
 * such as "text file" or "XML file", that can be used for, among other
 * things, captures we can read, or for file formats we can read in
 * order to dissect the contents of the file (think of this as "Fileshark",
 * which is a program that we really should have).  Those are marked
 * specially, because, in file section dialogs, the user should be able
 * to select "All Capture Files" and get a set of extensions that are
 * associated with capture file formats, but not with files in other
 * formats that might or might not contain captured packets (such as
 * .txt or .xml") or formats that aren't capture files but that we
 * support as "we're being Fileshark now" (such as .jpeg).  The routine
 * that constructs a list of extensions for "All Capture Files" omits
 * extensions for those entries.
 */
struct file_extension_info {
    /* the file type description */
    const char *name;
 
    /* true if this is a capture file type */
    bool is_capture_file;
 
    /* a semicolon-separated list of file extensions used for this type */
    const char *extensions;
};
 
/*
 * For registering file types that we can open.
 *
 * Each file type has an open routine.
 *
 * The open routine should return:
 *
 *      WTAP_OPEN_ERROR on an I/O error;
 *
 *      WTAP_OPEN_MINE if the file it's reading is one of the types
 *      it handles;
 *
 *      WTAP_OPEN_NOT_MINE if the file it's reading isn't one of the
 *      types it handles.
 *
 * If the routine handles this type of file, it should set the
 * "file_type_subtype" field in the "struct wtap" to the type of the file.
 *
 * Note that the routine does not have to free the private data pointer on
 * error. The caller takes care of that by calling wtap_close on error.
 * (See https://gitlab.com/wireshark/wireshark/-/issues/8518)
 *
 * However, the caller does have to free the private data pointer when
 * returning WTAP_OPEN_NOT_MINE, since the next file type will be called
 * and will likely just overwrite the pointer.
 */
typedef enum {
    WTAP_OPEN_NOT_MINE = 0,
    WTAP_OPEN_MINE = 1,
    WTAP_OPEN_ERROR = -1
} wtap_open_return_val;
 
typedef wtap_open_return_val (*wtap_open_routine_t)(struct wtap*, int *,
    char **);
 
/*
 * Some file formats have defined magic numbers at fixed offsets from
 * the beginning of the file; those routines should return 1 if and
 * only if the file has the magic number at that offset.  (pcapng
 * is a bit of a special case, as it has both the Section Header Block
 * type field and its byte-order magic field; it checks for both.)
 * Those file formats do not require a file name extension in order
 * to recognize them or to avoid recognizing other file types as that
 * type, and have no extensions specified for them.
 *
 * Other file formats don't have defined magic numbers at fixed offsets,
 * so a heuristic is required.  If that file format has any file name
 * extensions used for it, a list of those extensions should be
 * specified, so that, if the name of the file being opened has an
 * extension, the file formats that use that extension are tried before
 * the ones that don't, to handle the case where a file of one type
 * might be recognized by the heuristics for a different file type.
 */
typedef enum {
    OPEN_INFO_MAGIC = 0,
    OPEN_INFO_HEURISTIC = 1
} wtap_open_type;
 
WS_DLL_PUBLIC void init_open_routines(void);
 
void cleanup_open_routines(void);
 
/*
 * Information about a given file type that applies to all subtypes of
 * the file type.
 *
 * Each file type has:
 *
 *    a human-readable description of the file type, for use in the
 *      user interface;
 *    a wtap_open_type indication of how the open routine
 *      determines whether a file is of that type;
 *    an open routine;
 *    an optional list of extensions used for this file type;
 *    data to be passed to Lua file readers - this should be NULL for
 *      non-Lua (C) file readers.
 *
 * The list of file extensions is used as a hint when calling open routines
 * to open a file; heuristic open routines whose list of extensions includes
 * the file's extension are called before heuristic open routines whose
 * (possibly-empty) list of extensions doesn't contain the file's extension,
 * to reduce the chances that a file will be misidentified due to an heuristic
 * test with a weak heuristic being done before a heuristic test for the
 * file's type.
 *
 * The list of extensions should be NULL for magic-number open routines,
 * as it will not be used for any purpose (no such hinting is done).
 */
struct open_info {
    const char *name;                 /* Description */
    wtap_open_type type;              /* Open routine type */
    wtap_open_routine_t open_routine; /* Open routine */
    const char *extensions;           /* List of extensions used for this file type */
    char **extensions_set;           /* Array of those extensions; populated using extensions member during initialization */
    void* wslua_data;                 /* Data for Lua file readers */
};
WS_DLL_PUBLIC struct open_info *open_routines;
 
/*
 * Types of comments.
 */
#define WTAP_COMMENT_PER_SECTION        0x00000001      /* per-file/per-file-section */
#define WTAP_COMMENT_PER_INTERFACE      0x00000002      /* per-interface */
#define WTAP_COMMENT_PER_PACKET         0x00000004      /* per-packet */
 
/*
 * For a given option type in a certain block type, does a file format
 * not support it, support only one such option, or support multiple
 * such options?
 */
typedef enum {
    OPTION_NOT_SUPPORTED,
    ONE_OPTION_SUPPORTED,
    MULTIPLE_OPTIONS_SUPPORTED
} option_support_t;
 
/*
 * Entry in a table of supported option types.
 */
struct supported_option_type {
    unsigned opt;
    option_support_t support; /* OPTION_NOT_SUPPORTED allowed, equivalent to absence */
};
 
#define OPTION_TYPES_SUPPORTED(option_type_array) \
    array_length(option_type_array), option_type_array
 
#define NO_OPTIONS_SUPPORTED \
    0, NULL
 
/*
 * For a given block type, does a file format not support it, support
 * only one such block, or support multiple such blocks?
 */
typedef enum {
    BLOCK_NOT_SUPPORTED,
    ONE_BLOCK_SUPPORTED,
    MULTIPLE_BLOCKS_SUPPORTED
} block_support_t;
 
/*
 * Entry in a table of supported block types.
 */
struct supported_block_type {
    wtap_block_type_t type;
    block_support_t support; /* BLOCK_NOT_SUPPORTED allowed, equivalent to absence */
    size_t num_supported_options;
    const struct supported_option_type *supported_options;
};
 
#define BLOCKS_SUPPORTED(block_type_array) \
    array_length(block_type_array), block_type_array
 
struct file_type_subtype_info {
    const char *description;
 
    const char *name;
 
    const char *default_file_extension;
 
    const char *additional_file_extensions;
 
    bool writing_must_seek;
 
    size_t num_supported_blocks;
 
    const struct supported_block_type *supported_blocks;
 
    int (*can_write_encap)(int);
 
    bool (*dump_open)(wtap_dumper *, int *, char **);
 
    wtap_wslua_file_info_t *wslua_info;
};
 
#define WTAP_TYPE_AUTO 0
 
WS_DLL_PUBLIC
void wtap_init(bool load_wiretap_plugins);
 
WS_DLL_PUBLIC
struct wtap* wtap_open_offline(const char *filename, unsigned int type, int *err,
    char **err_info, bool do_random);
 
WS_DLL_PUBLIC
void wtap_cleareof(wtap *wth);
 
typedef void (*wtap_new_ipv4_callback_t) (const unsigned addr, const char *name, const bool static_entry);
WS_DLL_PUBLIC
void wtap_set_cb_new_ipv4(wtap *wth, wtap_new_ipv4_callback_t add_new_ipv4);
 
typedef void (*wtap_new_ipv6_callback_t) (const ws_in6_addr *addrp, const char *name, const bool static_entry);
WS_DLL_PUBLIC
void wtap_set_cb_new_ipv6(wtap *wth, wtap_new_ipv6_callback_t add_new_ipv6);
 
typedef void (*wtap_new_secrets_callback_t)(uint32_t secrets_type, const void *secrets, unsigned size);
WS_DLL_PUBLIC
void wtap_set_cb_new_secrets(wtap *wth, wtap_new_secrets_callback_t add_new_secrets);
 
WS_DLL_PUBLIC
bool wtap_read(wtap *wth, wtap_rec *rec, Buffer *buf, int *err,
    char **err_info, int64_t *offset);
 
WS_DLL_PUBLIC
bool wtap_seek_read(wtap *wth, int64_t seek_off, wtap_rec *rec,
    Buffer *buf, int *err, char **err_info);
 
/*** initialize a wtap_rec structure ***/
WS_DLL_PUBLIC
void wtap_rec_init(wtap_rec *rec);
 
/*** Re-initialize a wtap_rec structure ***/
WS_DLL_PUBLIC
void wtap_rec_reset(wtap_rec *rec);
 
/*** clean up a wtap_rec structure, freeing what wtap_rec_init() allocated */
WS_DLL_PUBLIC
void wtap_rec_cleanup(wtap_rec *rec);
 
/*
 * Types of compression for a file, including "none".
 */
typedef enum {
    WTAP_UNCOMPRESSED,
    WTAP_GZIP_COMPRESSED,
    WTAP_ZSTD_COMPRESSED,
    WTAP_LZ4_COMPRESSED,
    WTAP_UNKNOWN_COMPRESSION,
} wtap_compression_type;
 
WS_DLL_PUBLIC
wtap_compression_type wtap_get_compression_type(wtap *wth);
WS_DLL_PUBLIC
wtap_compression_type wtap_name_to_compression_type(const char *name);
WS_DLL_PUBLIC
wtap_compression_type wtap_extension_to_compression_type(const char *ext);
WS_DLL_PUBLIC
const char *wtap_compression_type_description(wtap_compression_type compression_type);
WS_DLL_PUBLIC
const char *wtap_compression_type_extension(wtap_compression_type compression_type);
WS_DLL_PUBLIC
GSList *wtap_get_all_compression_type_extensions_list(void);
WS_DLL_PUBLIC
GSList *wtap_get_all_output_compression_type_names_list(void);
WS_DLL_PUBLIC
bool wtap_can_write_compression_type(wtap_compression_type compression_type);
 
/*** get various information snippets about the current file ***/
 
WS_DLL_PUBLIC
int64_t wtap_read_so_far(wtap *wth);
WS_DLL_PUBLIC
int64_t wtap_file_size(wtap *wth, int *err);
WS_DLL_PUBLIC
unsigned wtap_snapshot_length(wtap *wth); /* per file */
WS_DLL_PUBLIC
int wtap_file_type_subtype(wtap *wth);
WS_DLL_PUBLIC
int wtap_file_encap(wtap *wth);
WS_DLL_PUBLIC
int wtap_file_tsprec(wtap *wth);
 
WS_DLL_PUBLIC
unsigned wtap_file_get_num_shbs(wtap *wth);
 
WS_DLL_PUBLIC
wtap_block_t wtap_file_get_shb(wtap *wth, unsigned shb_num);
 
WS_DLL_PUBLIC
void wtap_write_shb_comment(wtap *wth, char *comment);
 
WS_DLL_PUBLIC
unsigned wtap_file_get_shb_global_interface_id(wtap *wth, unsigned shb_num, uint32_t interface_id);
 
WS_DLL_PUBLIC
wtapng_iface_descriptions_t *wtap_file_get_idb_info(wtap *wth);
 
WS_DLL_PUBLIC
wtap_block_t wtap_get_next_interface_description(wtap *wth);
 
WS_DLL_PUBLIC
void wtap_free_idb_info(wtapng_iface_descriptions_t *idb_info);
 
WS_DLL_PUBLIC
char *wtap_get_debug_if_descr(const wtap_block_t if_descr,
                               const int indent,
                               const char* line_end);
 
WS_DLL_PUBLIC
wtap_block_t wtap_file_get_nrb(wtap *wth);
 
WS_DLL_PUBLIC
unsigned wtap_file_get_num_dsbs(wtap *wth);
 
WS_DLL_PUBLIC
wtap_block_t wtap_file_get_dsb(wtap *wth, unsigned dsb_num);
 
WS_DLL_PUBLIC
void wtap_file_add_decryption_secrets(wtap *wth, const wtap_block_t dsb);
 
WS_DLL_PUBLIC
bool wtap_file_discard_decryption_secrets(wtap *wth);
 
/*** close the file descriptors for the current file ***/
WS_DLL_PUBLIC
void wtap_fdclose(wtap *wth);
 
/*** reopen the random file descriptor for the current file ***/
WS_DLL_PUBLIC
bool wtap_fdreopen(wtap *wth, const char *filename, int *err);
 
WS_DLL_PUBLIC
void wtap_sequential_close(wtap *wth);
 
WS_DLL_PUBLIC
void wtap_close(wtap *wth);
 
/*** dump packets into a capture file ***/
WS_DLL_PUBLIC
bool wtap_dump_can_open(int filetype);
 
WS_DLL_PUBLIC
int wtap_dump_required_file_encap_type(const GArray *file_encaps);
 
WS_DLL_PUBLIC
bool wtap_dump_can_write_encap(int file_type_subtype, int encap);
 
WS_DLL_PUBLIC
bool wtap_dump_can_compress(int file_type_subtype);
 
WS_DLL_PUBLIC
void wtap_dump_params_init(wtap_dump_params *params, wtap *wth);
 
WS_DLL_PUBLIC
void wtap_dump_params_init_no_idbs(wtap_dump_params *params, wtap *wth);
 
WS_DLL_PUBLIC
void wtap_dump_params_discard_name_resolution(wtap_dump_params *params);
 
WS_DLL_PUBLIC
void wtap_dump_params_discard_decryption_secrets(wtap_dump_params *params);
 
WS_DLL_PUBLIC
void wtap_dump_params_cleanup(wtap_dump_params *params);
 
WS_DLL_PUBLIC
wtap_dumper* wtap_dump_open(const char *filename, int file_type_subtype,
    wtap_compression_type compression_type, const wtap_dump_params *params,
    int *err, char **err_info);
 
WS_DLL_PUBLIC
wtap_dumper* wtap_dump_open_tempfile(const char *tmpdir, char **filenamep,
    const char *pfx,
    int file_type_subtype, wtap_compression_type compression_type,
    const wtap_dump_params *params, int *err, char **err_info);
 
WS_DLL_PUBLIC
wtap_dumper* wtap_dump_fdopen(int fd, int file_type_subtype,
    wtap_compression_type compression_type, const wtap_dump_params *params,
    int *err, char **err_info);
 
WS_DLL_PUBLIC
wtap_dumper* wtap_dump_open_stdout(int file_type_subtype,
    wtap_compression_type compression_type, const wtap_dump_params *params,
    int *err, char **err_info);
 
/*
 * Add an IDB to the list of IDBs for a file we're writing.
 * Makes a copy of the IDB, so it can be freed after this call is made.
 *
 * @param wdh handle for the file we're writing.
 * @param idb the IDB to add
 * @param[out] err Will be set to an error code on failure.
 * @param[out] err_info for some errors, a string giving more details of
 * the error.
 * @return true on success, false on failure.
 */
WS_DLL_PUBLIC
bool wtap_dump_add_idb(wtap_dumper *wdh, wtap_block_t idb, int *err,
     char **err_info);
WS_DLL_PUBLIC
bool wtap_dump(wtap_dumper *, const wtap_rec *, const uint8_t *,
     int *err, char **err_info);
WS_DLL_PUBLIC
bool wtap_dump_flush(wtap_dumper *, int *);
WS_DLL_PUBLIC
int wtap_dump_file_type_subtype(wtap_dumper *wdh);
WS_DLL_PUBLIC
int64_t wtap_get_bytes_dumped(wtap_dumper *);
WS_DLL_PUBLIC
void wtap_set_bytes_dumped(wtap_dumper *wdh, int64_t bytes_dumped);
struct addrinfo;
WS_DLL_PUBLIC
bool wtap_addrinfo_list_empty(addrinfo_lists_t *addrinfo_lists);
WS_DLL_PUBLIC
bool wtap_dump_set_addrinfo_list(wtap_dumper *wdh, addrinfo_lists_t *addrinfo_lists);
WS_DLL_PUBLIC
void wtap_dump_discard_name_resolution(wtap_dumper *wdh);
WS_DLL_PUBLIC
void wtap_dump_discard_decryption_secrets(wtap_dumper *wdh);
 
WS_DLL_PUBLIC
bool wtap_dump_close(wtap_dumper *wdh, bool *needs_reload,
    int *err, char **err_info);
 
WS_DLL_PUBLIC
bool wtap_dump_can_write(const GArray *file_encaps, uint32_t required_comment_types);
 
WS_DLL_PUBLIC
void wtap_buffer_append_epdu_tag(Buffer *buf, uint16_t epdu_tag, const uint8_t *data, uint16_t data_len);
 
WS_DLL_PUBLIC
void wtap_buffer_append_epdu_uint(Buffer *buf, uint16_t epdu_tag, uint32_t val);
 
WS_DLL_PUBLIC
void wtap_buffer_append_epdu_string(Buffer *buf, uint16_t epdu_tag, const char *val);
 
WS_DLL_PUBLIC
int wtap_buffer_append_epdu_end(Buffer *buf);
 
/*
 * Sort the file types by name or by description?
 */
typedef enum {
    FT_SORT_BY_NAME,
    FT_SORT_BY_DESCRIPTION
} ft_sort_order;
 
WS_DLL_PUBLIC
GArray *wtap_get_savable_file_types_subtypes_for_file(int file_type_subtype,
    const GArray *file_encaps, uint32_t required_comment_types,
    ft_sort_order sort_order);
 
WS_DLL_PUBLIC
GArray *wtap_get_writable_file_types_subtypes(ft_sort_order sort_order);
 
/*** various file type/subtype functions ***/
WS_DLL_PUBLIC
const char *wtap_file_type_subtype_description(int file_type_subtype);
WS_DLL_PUBLIC
const char *wtap_file_type_subtype_name(int file_type_subtype);
WS_DLL_PUBLIC
int wtap_name_to_file_type_subtype(const char *name);
WS_DLL_PUBLIC
int wtap_pcap_file_type_subtype(void);
WS_DLL_PUBLIC
int wtap_pcap_nsec_file_type_subtype(void);
WS_DLL_PUBLIC
int wtap_pcapng_file_type_subtype(void);
 
WS_DLL_PUBLIC
block_support_t wtap_file_type_subtype_supports_block(int file_type_subtype,
    wtap_block_type_t type);
 
WS_DLL_PUBLIC
option_support_t wtap_file_type_subtype_supports_option(int file_type_subtype,
    wtap_block_type_t type, unsigned opttype);
 
/* Return a list of all extensions that are used by all capture file
 * types, including compressed extensions, e.g. not just "pcap" but
 * also "pcap.gz" if we can read gzipped files.
 *
 * "Capture files" means "include file types that correspond to
 * collections of network packets, but not file types that
 * store data that just happens to be transported over protocols
 * such as HTTP but that aren't collections of network packets",
 * so that it could be used for "All Capture Files" without picking
 * up JPEG files or files such as that - those aren't capture files,
 * and we *do* have them listed in the long list of individual file
 * types, so omitting them from "All Capture Files" is the right
 * thing to do.
 *
 * All strings in the list are allocated with g_malloc() and must be freed
 * with g_free().
 *
 * This is used to generate a list of extensions to look for if the user
 * chooses "All Capture Files" in a file open dialog.
 */
WS_DLL_PUBLIC
GSList *wtap_get_all_capture_file_extensions_list(void);
 
/* Return a list of all extensions that are used by all file types that
 * we can read, including compressed extensions, e.g. not just "pcap" but
 * also "pcap.gz" if we can read gzipped files.
 *
 * "File type" means "include file types that correspond to collections
 * of network packets, as well as file types that store data that just
 * happens to be transported over protocols such as HTTP but that aren't
 * collections of network packets, and plain text files".
 *
 * All strings in the list are allocated with g_malloc() and must be freed
 * with g_free().
 */
WS_DLL_PUBLIC
GSList *wtap_get_all_file_extensions_list(void);
 
/*
 * Free a list returned by wtap_get_file_extension_type_extensions(),
 * wtap_get_all_capture_file_extensions_list, wtap_get_file_extensions_list(),
 * or wtap_get_all_file_extensions_list().
 */
WS_DLL_PUBLIC
void wtap_free_extensions_list(GSList *extensions);
 
/*
 * Return the default file extension to use with the specified file type
 * and subtype; that's just the extension, without any ".".
 */
WS_DLL_PUBLIC
const char *wtap_default_file_extension(int file_type_subtype);
 
/* Return a list of file extensions that are used by the specified file type
 * and subtype.
 *
 * If include_compressed is true, the list will include compressed
 * extensions, e.g. not just "pcap" but also "pcap.gz" if we can read
 * gzipped files.
 *
 * All strings in the list are allocated with g_malloc() and must be freed
 * with g_free().
 */
WS_DLL_PUBLIC
GSList *wtap_get_file_extensions_list(int file_type_subtype, bool include_compressed);
 
WS_DLL_PUBLIC
const char *wtap_encap_name(int encap);
WS_DLL_PUBLIC
const char *wtap_encap_description(int encap);
WS_DLL_PUBLIC
int wtap_name_to_encap(const char *short_name);
 
WS_DLL_PUBLIC
const char* wtap_tsprec_string(int tsprec);
 
WS_DLL_PUBLIC
const char *wtap_strerror(int err);
 
/*** get available number of file types and encapsulations ***/
WS_DLL_PUBLIC
int wtap_get_num_file_type_extensions(void);
WS_DLL_PUBLIC
int wtap_get_num_encap_types(void);
 
/*** get information for file type extension ***/
WS_DLL_PUBLIC
const char *wtap_get_file_extension_type_name(int extension_type);
WS_DLL_PUBLIC
GSList *wtap_get_file_extension_type_extensions(unsigned extension_type);
 
/*** dynamically register new file types and encapsulations ***/
WS_DLL_PUBLIC
void wtap_register_file_type_extension(const struct file_extension_info *ei);
 
typedef struct {
    void (*register_wtap_module)(void);  /* routine to call to register a wiretap module */
} wtap_plugin;
 
WS_DLL_PUBLIC
void wtap_register_plugin(const wtap_plugin *plug);
 
WS_DLL_PUBLIC
int wtap_plugins_supported(void);
 
WS_DLL_PUBLIC
void wtap_register_open_info(struct open_info *oi, const bool first_routine);
WS_DLL_PUBLIC
bool wtap_has_open_info(const char *name);
WS_DLL_PUBLIC
bool wtap_uses_lua_filehandler(const wtap* wth);
WS_DLL_PUBLIC
void wtap_deregister_open_info(const char *name);
 
WS_DLL_PUBLIC
unsigned int open_info_name_to_type(const char *name);
WS_DLL_PUBLIC
int wtap_register_file_type_subtype(const struct file_type_subtype_info* fi);
WS_DLL_PUBLIC
void wtap_deregister_file_type_subtype(const int file_type_subtype);
 
WS_DLL_PUBLIC
int wtap_register_encap_type(const char *description, const char *name);
 
/*** Cleanup the internal library structures */
WS_DLL_PUBLIC
void wtap_cleanup(void);
 
#define WTAP_ERR_NOT_REGULAR_FILE              -1
#define WTAP_ERR_RANDOM_OPEN_PIPE              -2
#define WTAP_ERR_FILE_UNKNOWN_FORMAT           -3
#define WTAP_ERR_UNSUPPORTED                   -4
#define WTAP_ERR_CANT_WRITE_TO_PIPE            -5
#define WTAP_ERR_CANT_OPEN                     -6
#define WTAP_ERR_UNWRITABLE_FILE_TYPE          -7
#define WTAP_ERR_UNWRITABLE_ENCAP              -8
#define WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED  -9
#define WTAP_ERR_CANT_WRITE                   -10
#define WTAP_ERR_CANT_CLOSE                   -11
#define WTAP_ERR_SHORT_READ                   -12
#define WTAP_ERR_BAD_FILE                     -13
#define WTAP_ERR_SHORT_WRITE                  -14
#define WTAP_ERR_UNC_OVERFLOW                 -15
#define WTAP_ERR_RANDOM_OPEN_STDIN            -16
#define WTAP_ERR_COMPRESSION_NOT_SUPPORTED    -17
#define WTAP_ERR_CANT_SEEK                    -18
#define WTAP_ERR_CANT_SEEK_COMPRESSED         -19
#define WTAP_ERR_DECOMPRESS                   -20
#define WTAP_ERR_INTERNAL                     -21
#define WTAP_ERR_PACKET_TOO_LARGE             -22
#define WTAP_ERR_CHECK_WSLUA                  -23
#define WTAP_ERR_UNWRITABLE_REC_TYPE          -24
#define WTAP_ERR_UNWRITABLE_REC_DATA          -25
#define WTAP_ERR_DECOMPRESSION_NOT_SUPPORTED  -26
#define WTAP_ERR_TIME_STAMP_NOT_SUPPORTED     -27
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* __WTAP_H__ */
 
/*
 * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
 *
 * Local variables:
 * c-basic-offset: 4
 * tab-width: 8
 * indent-tabs-mode: nil
 * End:
 *
 * vi: set shiftwidth=4 tabstop=8 expandtab:
 * :indentSize=4:tabSize=8:noTabs=true:
 */