wtap_opttypes.h

Go to the documentation of this file.

 
#ifndef WTAP_OPT_TYPES_H
#define WTAP_OPT_TYPES_H
 
#include "ws_symbol_export.h"
 
#include <wsutil/inet_addr.h>
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
/*
 * We use the pcapng option codes for option type values.
 */
 
/* Options for all blocks */
#define OPT_EOFOPT             0     
#define OPT_COMMENT            1     
#define OPT_CUSTOM_STR_COPY    2988  
#define OPT_CUSTOM_BIN_COPY    2989  
#define OPT_CUSTOM_STR_NO_COPY 19372 
#define OPT_CUSTOM_BIN_NO_COPY 19373 
/* Section Header block (SHB) */
#define OPT_SHB_HARDWARE       2     
#define OPT_SHB_OS             3     
#define OPT_SHB_USERAPPL       4     
/* Interface Description block (IDB) */
#define OPT_IDB_NAME           2     
#define OPT_IDB_DESCRIPTION    3     
#define OPT_IDB_IP4ADDR        4     
#define OPT_IDB_IP6ADDR        5     
#define OPT_IDB_MACADDR        6     
#define OPT_IDB_EUIADDR        7     
#define OPT_IDB_SPEED          8     
#define OPT_IDB_TSRESOL        9     
#define OPT_IDB_TZONE          10    
#define OPT_IDB_FILTER         11    
#define OPT_IDB_OS             12    
#define OPT_IDB_FCSLEN         13    
#define OPT_IDB_TSOFFSET       14    
#define OPT_IDB_HARDWARE       15    
/*
 * These are the flags for an EPB, but we use them for all WTAP_BLOCK_PACKET
 */
#define OPT_PKT_FLAGS        2
#define OPT_PKT_HASH         3
#define OPT_PKT_DROPCOUNT    4
#define OPT_PKT_PACKETID     5
#define OPT_PKT_QUEUE        6
#define OPT_PKT_VERDICT      7
 
/* Name Resolution Block (NRB) */
#define OPT_NS_DNSNAME       2
#define OPT_NS_DNSIP4ADDR    3
#define OPT_NS_DNSIP6ADDR    4
 
/* Interface Statistics Block (ISB) */
#define OPT_ISB_STARTTIME    2
#define OPT_ISB_ENDTIME      3
#define OPT_ISB_IFRECV       4
#define OPT_ISB_IFDROP       5
#define OPT_ISB_FILTERACCEPT 6
#define OPT_ISB_OSDROP       7
#define OPT_ISB_USRDELIV     8
 
struct wtap_block;
typedef struct wtap_block *wtap_block_t;
 
/*
 * Currently supported blocks; these are not the pcapng block type values
 * for them, they're identifiers used internally, and more than one
 * pcapng block type may use a given block type.
 *
 * Note that, in a given file format, this information won't necessarily
 * appear in the form of blocks in the file, even though they're presented
 * to the caller of libwiretap as blocks when reading and are presented
 * by the caller of libwiretap as blocks when writing.  See, for example,
 * the iptrace file format, in which the interface name is given as part
 * of the packet record header; we synthesize those blocks when reading
 * (we don't currently support writing that format, but if we did, we'd
 * get the interface name from the block and put it in the packet record
 * header).
 *
 * WTAP_BLOCK_IF_ID_AND_INFO is a block that not only gives
 * descriptive information about an interface but *also* assigns an
 * ID to the interface, so that every packet has either an explicit
 * or implicit interface ID indicating on which the packet arrived.
 *
 * It does *not* refer to information about interfaces that does not
 * allow identification of the interface on which a packet arrives
 * (I'm looking at *you*, Microsoft Network Monitor...).  Do *not*
 * indicate support for that block if your capture format merely
 * gives a list of interface information without having every packet
 * explicitly or implicitly (as in, for example, the pcapng Simple
 * Packet Block) indicate on which of those interfaces the packet
 * arrived.
 *
 * WTAP_BLOCK_PACKET (which corresponds to the Enhanced Packet Block,
 * the Simple Packet Block, and the deprecated Packet Block) is not
 * currently used; it's reserved for future use.  The same applies
 * to WTAP_BLOCK_SYSTEMD_JOURNAL_EXPORT.
 */
typedef enum {
    WTAP_BLOCK_SECTION = 0,
    WTAP_BLOCK_IF_ID_AND_INFO,
    WTAP_BLOCK_NAME_RESOLUTION,
    WTAP_BLOCK_IF_STATISTICS,
    WTAP_BLOCK_DECRYPTION_SECRETS,
    WTAP_BLOCK_PACKET,
    WTAP_BLOCK_FT_SPECIFIC_REPORT,
    WTAP_BLOCK_FT_SPECIFIC_EVENT,
    WTAP_BLOCK_SYSDIG_EVENT,
    WTAP_BLOCK_META_EVENT,
    WTAP_BLOCK_SYSTEMD_JOURNAL_EXPORT,
    WTAP_BLOCK_CUSTOM,
    MAX_WTAP_BLOCK_TYPE_VALUE
} wtap_block_type_t;
 
typedef struct wtapng_section_mandatory_s {
    uint64_t            section_length; 
} wtapng_section_mandatory_t;
 
typedef struct wtapng_iface_descriptions_s {
    GArray *interface_data;
} wtapng_iface_descriptions_t;
 
typedef struct wtapng_if_descr_mandatory_s {
    int                    wtap_encap;            
    uint64_t               time_units_per_second;
    int                    tsprecision;           
    uint32_t               snap_len;
 
    uint8_t                num_stat_entries;
    GArray                *interface_statistics;  
} wtapng_if_descr_mandatory_t;
 
typedef struct wtapng_nrb_mandatory_s {
    GList       *ipv4_addr_list;
    GList       *ipv6_addr_list;
}  wtapng_nrb_mandatory_t;
 
typedef struct wtapng_if_stats_mandatory_s {
    uint32_t interface_id;
    uint32_t ts_high;
    uint32_t ts_low;
} wtapng_if_stats_mandatory_t;
 
typedef struct wtapng_dsb_mandatory_s {
    uint32_t               secrets_type;            
    uint32_t               secrets_len;             
    uint8_t               *secrets_data;            
} wtapng_dsb_mandatory_t;
 
typedef struct wtapng_meta_event_mandatory_s {
    uint32_t               mev_block_type;      
    unsigned               mev_data_len;        
    uint8_t               *mev_data;            
} wtapng_meta_event_mandatory_t;
 
#if 0
/* Commented out for now, there's no mandatory data that isn't handled by
 * Wireshark in other ways.
 */
typedef struct wtapng_packet_mandatory_s {
    uint32_t interface_id;
    uint32_t ts_high;
    uint32_t ts_low;
    uint32_t captured_len;
    uint32_t orig_len;
} wtapng_packet_mandatory_t;
#endif
 
typedef struct wtapng_ft_specific_mandatory_s {
    unsigned  record_type;      /* the type of record this is - file type-specific value */
} wtapng_ft_specific_mandatory_t;
 
/*
 * Currently supported option types.  These are not option types
 * in the sense that each one corresponds to a particular option,
 * they are data types for the data of an option, so, for example,
 * all options with a 32-bit unsigned integer value have the type
 * WTAP_OPTTYPE_UINT32.
 */
typedef enum {
    WTAP_OPTTYPE_UINT8,
    WTAP_OPTTYPE_UINT32,
    WTAP_OPTTYPE_UINT64,
    WTAP_OPTTYPE_STRING,
    WTAP_OPTTYPE_BYTES,
    WTAP_OPTTYPE_IPv4,
    WTAP_OPTTYPE_IPv6,
    WTAP_OPTTYPE_CUSTOM,
    WTAP_OPTTYPE_IF_FILTER,
    WTAP_OPTTYPE_PACKET_VERDICT,
    WTAP_OPTTYPE_PACKET_HASH,
    WTAP_OPTTYPE_INT8,
    WTAP_OPTTYPE_INT32,
    WTAP_OPTTYPE_INT64,
} wtap_opttype_e;
 
typedef enum {
    WTAP_OPTTYPE_SUCCESS = 0,
    WTAP_OPTTYPE_NO_SUCH_OPTION = -1,
    WTAP_OPTTYPE_NOT_FOUND = -2,
    WTAP_OPTTYPE_TYPE_MISMATCH = -3,
    WTAP_OPTTYPE_NUMBER_MISMATCH = -4,
    WTAP_OPTTYPE_ALREADY_EXISTS = -5,
    WTAP_OPTTYPE_BAD_BLOCK = -6,
} wtap_opttype_return_val;
 
/* https://www.iana.org/assignments/enterprise-numbers/enterprise-numbers */
#define PEN_NFLX 10949
#define PEN_VCTR 46254
 
/*
 * Structure describing a custom option.
 */
 
typedef struct custom_opt_s {
    uint32_t pen;
    union {
        struct generic_custom_opt_data {
            size_t custom_data_len;
            char *custom_data;
        } generic_data;
        struct nflx_custom_opt_data {
            uint32_t type;
            size_t custom_data_len;
            char *custom_data;
            bool use_little_endian;
        } nflx_data;
    } data;
} custom_opt_t;
 
/*
 * Structure describing a NFLX custom option.
 */
typedef struct nflx_custom_opt_s {
    bool nflx_use_little_endian;
    uint32_t nflx_type;
    size_t nflx_custom_data_len;
    char *nflx_custom_data;
} nflx_custom_opt_t;
 
/* Interface description data - if_filter option structure */
 
/* BPF instruction */
typedef struct wtap_bpf_insn_s {
    uint16_t               code;
    uint8_t                jt;
    uint8_t                jf;
    uint32_t               k;
} wtap_bpf_insn_t;
 
/*
 * Type of filter.
 */
typedef enum {
    if_filter_pcap = 0, /* pcap filter string */
    if_filter_bpf  = 1  /* BPF program */
} if_filter_type_e;
 
typedef struct if_filter_opt_s {
    if_filter_type_e type;
    union {
        char              *filter_str;   
        struct wtap_bpf_insns {
            unsigned       bpf_prog_len; 
            wtap_bpf_insn_t *bpf_prog;   
        }                  bpf_prog;     
    }                      data;
} if_filter_opt_t;
 
/* Packet - packet_verdict option structure */
 
/*
 * Type of verdict.
 */
typedef enum {
    packet_verdict_hardware =       0, /* array of octets */
    packet_verdict_linux_ebpf_tc  = 1, /* 64-bit unsigned integer TC_ACT_ value */
    packet_verdict_linux_ebpf_xdp = 2  /* 64-bit unsigned integer xdp_action value */
} packet_verdict_type_e;
 
typedef struct packet_verdict_opt_s {
    packet_verdict_type_e type;
    union {
        GByteArray *verdict_bytes;
        uint64_t    verdict_linux_ebpf_tc;
        uint64_t    verdict_linux_ebpf_xdp;
    }               data;
} packet_verdict_opt_t;
 
typedef struct packet_hash_opt_s {
    uint8_t type;
    GByteArray *hash_bytes;
} packet_hash_opt_t;
 
/*
 * Structure describing a value of an option.
 */
typedef union {
    uint8_t uint8val;
    uint32_t uint32val;
    uint64_t uint64val;
    int8_t int8val;
    int32_t int32val;
    int64_t int64val;
    ws_in4_addr ipv4val;    /* network byte order */
    ws_in6_addr ipv6val;
    char *stringval;
    GBytes *byteval;
    custom_opt_t custom_opt;
    if_filter_opt_t if_filterval;
    packet_verdict_opt_t packet_verdictval;
    packet_hash_opt_t packet_hash;
} wtap_optval_t;
 
/*
 * Structure describing an option in a block.
 */
typedef struct {
    unsigned option_id;     
    wtap_optval_t value; 
} wtap_option_t;
 
#define NFLX_OPT_TYPE_VERSION    1
#define NFLX_OPT_TYPE_TCPINFO    2
#define NFLX_OPT_TYPE_DUMPINFO   4
#define NFLX_OPT_TYPE_DUMPTIME   5
#define NFLX_OPT_TYPE_STACKNAME  6
 
struct nflx_dumpinfo {
    uint32_t tlh_version;
    uint32_t tlh_type;
    uint64_t tlh_length;
    uint16_t tlh_ie_fport;
    uint16_t tlh_ie_lport;
    uint32_t tlh_ie_faddr_addr32[4];
    uint32_t tlh_ie_laddr_addr32[4];
    uint32_t tlh_ie_zoneid;
    uint64_t tlh_offset_tv_sec;
    uint64_t tlh_offset_tv_usec;
    char    tlh_id[64];
    char    tlh_reason[32];
    char    tlh_tag[32];
    uint8_t tlh_af;
    uint8_t _pad[7];
};
 
/* Flags used in tlb_eventflags */
#define NFLX_TLB_FLAG_RXBUF     0x0001 /* Includes receive buffer info */
#define NFLX_TLB_FLAG_TXBUF     0x0002 /* Includes send buffer info */
#define NFLX_TLB_FLAG_HDR       0x0004 /* Includes a TCP header */
#define NFLX_TLB_FLAG_VERBOSE   0x0008 /* Includes function/line numbers */
#define NFLX_TLB_FLAG_STACKINFO 0x0010 /* Includes stack-specific info */
 
/* Flags used in tlb_flags */
#define NFLX_TLB_TF_REQ_SCALE   0x00000020 /* Sent WS option */
#define NFLX_TLB_TF_RCVD_SCALE  0x00000040 /* Received WS option */
 
/* Values of tlb_state */
#define NFLX_TLB_TCPS_ESTABLISHED 4
#define NFLX_TLB_IS_SYNCHRONIZED(state) (state >= NFLX_TLB_TCPS_ESTABLISHED)
 
struct nflx_tcpinfo {
    uint64_t tlb_tv_sec;
    uint64_t tlb_tv_usec;
    uint32_t tlb_ticks;
    uint32_t tlb_sn;
    uint8_t tlb_stackid;
    uint8_t tlb_eventid;
    uint16_t tlb_eventflags;
    int32_t tlb_errno;
    uint32_t tlb_rxbuf_tls_sb_acc;
    uint32_t tlb_rxbuf_tls_sb_ccc;
    uint32_t tlb_rxbuf_tls_sb_spare;
    uint32_t tlb_txbuf_tls_sb_acc;
    uint32_t tlb_txbuf_tls_sb_ccc;
    uint32_t tlb_txbuf_tls_sb_spare;
    int32_t tlb_state;
    uint32_t tlb_starttime;
    uint32_t tlb_iss;
    uint32_t tlb_flags;
    uint32_t tlb_snd_una;
    uint32_t tlb_snd_max;
    uint32_t tlb_snd_cwnd;
    uint32_t tlb_snd_nxt;
    uint32_t tlb_snd_recover;
    uint32_t tlb_snd_wnd;
    uint32_t tlb_snd_ssthresh;
    uint32_t tlb_srtt;
    uint32_t tlb_rttvar;
    uint32_t tlb_rcv_up;
    uint32_t tlb_rcv_adv;
    uint32_t tlb_flags2;
    uint32_t tlb_rcv_nxt;
    uint32_t tlb_rcv_wnd;
    uint32_t tlb_dupacks;
    int32_t tlb_segqlen;
    int32_t tlb_snd_numholes;
    uint32_t tlb_flex1;
    uint32_t tlb_flex2;
    uint32_t tlb_fbyte_in;
    uint32_t tlb_fbyte_out;
    uint8_t tlb_snd_scale:4,
            tlb_rcv_scale:4;
    uint8_t _pad[3];
 
    /* The following fields might become part of a union */
    uint64_t tlb_stackinfo_bbr_cur_del_rate;
    uint64_t tlb_stackinfo_bbr_delRate;
    uint64_t tlb_stackinfo_bbr_rttProp;
    uint64_t tlb_stackinfo_bbr_bw_inuse;
    uint32_t tlb_stackinfo_bbr_inflight;
    uint32_t tlb_stackinfo_bbr_applimited;
    uint32_t tlb_stackinfo_bbr_delivered;
    uint32_t tlb_stackinfo_bbr_timeStamp;
    uint32_t tlb_stackinfo_bbr_epoch;
    uint32_t tlb_stackinfo_bbr_lt_epoch;
    uint32_t tlb_stackinfo_bbr_pkts_out;
    uint32_t tlb_stackinfo_bbr_flex1;
    uint32_t tlb_stackinfo_bbr_flex2;
    uint32_t tlb_stackinfo_bbr_flex3;
    uint32_t tlb_stackinfo_bbr_flex4;
    uint32_t tlb_stackinfo_bbr_flex5;
    uint32_t tlb_stackinfo_bbr_flex6;
    uint32_t tlb_stackinfo_bbr_lost;
    uint16_t tlb_stackinfo_bbr_pacing_gain;
    uint16_t tlb_stackinfo_bbr_cwnd_gain;
    uint16_t tlb_stackinfo_bbr_flex7;
    uint8_t tlb_stackinfo_bbr_bbr_state;
    uint8_t tlb_stackinfo_bbr_bbr_substate;
    uint8_t tlb_stackinfo_bbr_inhpts;
    uint8_t tlb_stackinfo_bbr_ininput;
    uint8_t tlb_stackinfo_bbr_use_lt_bw;
    uint8_t tlb_stackinfo_bbr_flex8;
    uint32_t tlb_stackinfo_bbr_pkt_epoch;
 
    uint32_t tlb_len;
};
 
typedef void (*wtap_block_create_func)(wtap_block_t block);
typedef void (*wtap_mand_free_func)(wtap_block_t block);
typedef void (*wtap_mand_copy_func)(wtap_block_t dest_block, wtap_block_t src_block);
 
WS_DLL_PUBLIC void
wtap_opttypes_initialize(void);
 
WS_DLL_PUBLIC wtap_block_t
wtap_block_create(wtap_block_type_t block_type);
 
WS_DLL_PUBLIC wtap_block_t
wtap_block_ref(wtap_block_t block);
 
WS_DLL_PUBLIC void
wtap_block_unref(wtap_block_t block);
 
WS_DLL_PUBLIC void
wtap_block_array_free(GArray* block_array);
 
WS_DLL_PUBLIC void
wtap_block_array_unref(GArray* block_array);
 
WS_DLL_PUBLIC void
wtap_block_array_ref(GArray* block_array);
 
WS_DLL_PUBLIC wtap_block_type_t
wtap_block_get_type(wtap_block_t block);
 
WS_DLL_PUBLIC void*
wtap_block_get_mandatory_data(wtap_block_t block);
 
WS_DLL_PUBLIC unsigned
wtap_block_count_option(wtap_block_t block, unsigned option_id);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_uint8_option(wtap_block_t block, unsigned option_id, uint8_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_uint8_option_value(wtap_block_t block, unsigned option_id, uint8_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_uint8_option_value(wtap_block_t block, unsigned option_id, uint8_t* value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_uint32_option(wtap_block_t block, unsigned option_id, uint32_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_uint32_option_value(wtap_block_t block, unsigned option_id, uint32_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_uint32_option_value(wtap_block_t block, unsigned option_id, uint32_t* value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_uint64_option(wtap_block_t block, unsigned option_id, uint64_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_uint64_option_value(wtap_block_t block, unsigned option_id, uint64_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_uint64_option_value(wtap_block_t block, unsigned option_id, uint64_t* value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_int8_option(wtap_block_t block, unsigned option_id, int8_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_int8_option_value(wtap_block_t block, unsigned option_id, int8_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_int8_option_value(wtap_block_t block, unsigned option_id, int8_t* value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_int32_option(wtap_block_t block, unsigned option_id, int32_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_int32_option_value(wtap_block_t block, unsigned option_id, int32_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_int32_option_value(wtap_block_t block, unsigned option_id, int32_t* value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_int64_option(wtap_block_t block, unsigned option_id, int64_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_int64_option_value(wtap_block_t block, unsigned option_id, int64_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_int64_option_value(wtap_block_t block, unsigned option_id, int64_t* value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_ipv4_option(wtap_block_t block, unsigned option_id, uint32_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_ipv4_option_value(wtap_block_t block, unsigned option_id, uint32_t value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_ipv4_option_value(wtap_block_t block, unsigned option_id, uint32_t* value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_ipv6_option(wtap_block_t block, unsigned option_id, ws_in6_addr *value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_ipv6_option_value(wtap_block_t block, unsigned option_id, ws_in6_addr *value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_ipv6_option_value(wtap_block_t block, unsigned option_id, ws_in6_addr* value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_string_option(wtap_block_t block, unsigned option_id, const char *value, size_t value_length);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_string_option_owned(wtap_block_t block, unsigned option_id, char *value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_string_option_format(wtap_block_t block, unsigned option_id, const char *format, ...)
                                    G_GNUC_PRINTF(3,4);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_string_option_value(wtap_block_t block, unsigned option_id, const char* value, size_t value_length);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_nth_string_option_value(wtap_block_t block, unsigned option_id, unsigned idx, const char* value, size_t value_length);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_string_option_value_format(wtap_block_t block, unsigned option_id, const char *format, ...)
                                          G_GNUC_PRINTF(3,4);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_nth_string_option_value_format(wtap_block_t block, unsigned option_id, unsigned idx, const char *format, ...)
                                              G_GNUC_PRINTF(4,5);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_string_option_value(wtap_block_t block, unsigned option_id, char** value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_nth_string_option_value(wtap_block_t block, unsigned option_id, unsigned idx, char** value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_bytes_option(wtap_block_t block, unsigned option_id, const uint8_t *value, size_t value_length);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_bytes_option_borrow(wtap_block_t block, unsigned option_id, GBytes *value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_bytes_option_value(wtap_block_t block, unsigned option_id, const uint8_t* value, size_t value_length);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_nth_bytes_option_value(wtap_block_t block, unsigned option_id, unsigned idx, GBytes* value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_bytes_option_value(wtap_block_t block, unsigned option_id, GBytes** value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_nth_bytes_option_value(wtap_block_t block, unsigned option_id, unsigned idx, GBytes** value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_nflx_custom_option(wtap_block_t block, uint32_t nflx_type, const char *nflx_custom_data, size_t nflx_custom_data_len);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_nflx_custom_option(wtap_block_t block, uint32_t nflx_type, char *nflx_custom_data, size_t nflx_custom_data_len);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_custom_option(wtap_block_t block, unsigned option_id, uint32_t pen, const char *custom_data, size_t custom_data_len);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_if_filter_option(wtap_block_t block, unsigned option_id, if_filter_opt_t* value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_if_filter_option_value(wtap_block_t block, unsigned option_id, if_filter_opt_t* value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_if_filter_option_value(wtap_block_t block, unsigned option_id, if_filter_opt_t* value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_packet_verdict_option(wtap_block_t block, unsigned option_id, packet_verdict_opt_t* value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_set_nth_packet_verdict_option_value(wtap_block_t block, unsigned option_id, unsigned idx, packet_verdict_opt_t* value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_nth_packet_verdict_option_value(wtap_block_t block, unsigned option_id, unsigned idx, packet_verdict_opt_t* value) G_GNUC_WARN_UNUSED_RESULT;
 
WS_DLL_PUBLIC void
wtap_packet_verdict_free(packet_verdict_opt_t* verdict);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_packet_hash_option(wtap_block_t block, unsigned option_id, packet_hash_opt_t* value);
 
WS_DLL_PUBLIC void
wtap_packet_hash_free(packet_hash_opt_t* hash);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_remove_option(wtap_block_t block, unsigned option_id);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_remove_nth_option_instance(wtap_block_t block, unsigned option_id, unsigned idx);
 
WS_DLL_PUBLIC void
wtap_block_copy(wtap_block_t dest_block, wtap_block_t src_block);
 
WS_DLL_PUBLIC wtap_block_t
wtap_block_make_copy(wtap_block_t block);
 
typedef bool (*wtap_block_foreach_func)(wtap_block_t block, unsigned option_id, wtap_opttype_e option_type, wtap_optval_t *option, void *user_data);
WS_DLL_PUBLIC bool
wtap_block_foreach_option(wtap_block_t block, wtap_block_foreach_func func, void* user_data);
 
WS_DLL_PUBLIC void
wtap_opttypes_cleanup(void);
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* WTAP_OPT_TYPES_H */