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    
#define OPT_IDB_TXSPEED        16    
#define OPT_IDB_RXSPEED        17    
#define OPT_IDB_IANA_TZNAME    18    
/*
 * These are the options 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
#define OPT_PKT_PROCIDTHRDID 8
 
/* 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
 
/*
 * 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,
    WTAP_BLOCK_FT_SPECIFIC_INFORMATION,
    MAX_WTAP_BLOCK_TYPE_VALUE
} wtap_block_type_t;
 
struct wtap_block;
typedef struct wtap_block* wtap_block_t;
 
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);
 
/*
 * Structure describing a type of block.
 */
typedef struct wtap_blocktype_t {
    wtap_block_type_t block_type;    
    const char* name;                
    const char* description;         
    wtap_block_create_func create;
    wtap_mand_free_func free_mand;
    wtap_mand_copy_func copy_mand;
    GHashTable* options;             
} wtap_blocktype_t;
typedef struct wtap_blocktype_t {…};
 
struct wtap_block
{
    struct wtap_blocktype_t* info;
    void* mandatory_data;
    GArray* options;
    int ref_count;
#ifdef DEBUG_COUNT_REFS
    unsigned id;
#endif
};
struct wtap_block {…};
 
typedef struct wtapng_section_mandatory_s {
    uint64_t            section_length; 
} wtapng_section_mandatory_t;
typedef struct wtapng_section_mandatory_s {…};
 
typedef struct wtapng_iface_descriptions_s {
    GArray *interface_data;
} wtapng_iface_descriptions_t;
typedef struct wtapng_iface_descriptions_s {…};
 
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_if_descr_mandatory_s {…};
 
typedef struct wtapng_nrb_mandatory_s {
    GList       *ipv4_addr_list;
    GList       *ipv6_addr_list;
}  wtapng_nrb_mandatory_t;
typedef struct wtapng_nrb_mandatory_s {…};
 
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_if_stats_mandatory_s {…};
 
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_dsb_mandatory_s {…};
 
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;
typedef struct wtapng_meta_event_mandatory_s {…};
 
#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;
typedef struct wtapng_ft_specific_mandatory_s {…};
 
/*
 * 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_STRING,
    WTAP_OPTTYPE_CUSTOM_BINARY,
    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_PEN_MISMATCH = -7,
} wtap_opttype_return_val;
 
/* https://www.iana.org/assignments/enterprise-numbers/enterprise-numbers */
#define PEN_VCTR 46254
 
/*
 * Structure giving the value of a custom string option; the value
 * includes both the Private Enterprise Number and the data following it.
 */
typedef struct custom_string_opt_s {
    uint32_t pen;     /* Private Enterprise Number of this option */
    char* string;
} custom_string_opt_t;
typedef struct custom_string_opt_s {…};
 
/*
 * Structure giving the data of a custom binary option.
 */
typedef struct binary_optdata {
    size_t custom_data_len;
    void* custom_data;
} binary_optdata_t;
typedef struct binary_optdata {…};
 
/*
 * Structure giving the value of a custom binary option; the value
 * includes both the Private Enterprise Number and the data following it.
 */
typedef struct custom_binary_opt_s {
    uint32_t pen;     /* Private Enterprise Number of this option */
    binary_optdata_t data;
} custom_binary_opt_t;
typedef struct custom_binary_opt_s {…};
 
/* 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;
typedef struct wtap_bpf_insn_s {…};
 
/*
 * 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;
typedef struct if_filter_opt_s {…};
 
/* 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_verdict_opt_s {…};
 
typedef struct packet_hash_opt_s {
    uint8_t type;
    GByteArray *hash_bytes;
} packet_hash_opt_t;
typedef struct packet_hash_opt_s {…};
 
/*
 * 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_string_opt_t custom_stringval;
    custom_binary_opt_t custom_binaryval;
    if_filter_opt_t if_filterval;
    packet_verdict_opt_t packet_verdictval;
    packet_hash_opt_t packet_hash;
} wtap_optval_t;
typedef union  {…};
 
/*
 * Structure describing an option in a block.
 */
typedef struct {
    unsigned option_id;     
    wtap_optval_t value; 
} wtap_option_t;
typedef struct  {…};
 
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);
 
/*
 * Structure describing a type of option.
 */
typedef struct {
    const char* name;                            
    const char* description;                     
    wtap_opttype_e data_type;                    
    unsigned flags;                                 
} wtap_opttype_t;
typedef struct  {…};
 
#define GET_OPTION_TYPE(options, option_id) \
    (const wtap_opttype_t *)g_hash_table_lookup((options), GUINT_TO_POINTER(option_id))
 
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 void
wtap_opttype_block_register(wtap_blocktype_t* blocktype);
 
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_custom_string_option(wtap_block_t block, unsigned option_id, uint32_t pen, const char *value, size_t value_length);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_custom_binary_option(wtap_block_t block, unsigned option_id, uint32_t pen, binary_optdata_t *value);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_add_custom_binary_option_from_data(wtap_block_t block, unsigned option_id, uint32_t pen, const void *data, size_t data_size);
 
WS_DLL_PUBLIC wtap_opttype_return_val
wtap_block_get_nth_custom_binary_option_value(wtap_block_t block, unsigned option_id, uint32_t pen, unsigned idx, binary_optdata_t *value);
 
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 */