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/** @file
*
* Wiretap Library
* Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __W_PCAPNG_H__
#define __W_PCAPNG_H__
#include <glib.h>
#include "wtap.h"
#include "ws_symbol_export.h"
#define PCAPNG_MAGIC 0x1A2B3C4D
#define PCAPNG_SWAPPED_MAGIC 0x4D3C2B1A
#define PCAPNG_MAJOR_VERSION 1
#define PCAPNG_MINOR_VERSION 0
/* pcapng: common block header file encoding for every block type */
typedef struct pcapng_block_header_s {
uint32_t block_type;
uint32_t block_total_length;
/* x bytes block_body */
/* uint32_t block_total_length */
} pcapng_block_header_t;
/* pcapng: section header block file encoding */
typedef struct pcapng_section_header_block_s {
/* pcapng_block_header_t */
uint32_t magic;
uint16_t version_major;
uint16_t version_minor;
uint64_t section_length; /* might be -1 for unknown */
/* ... Options ... */
} pcapng_section_header_block_t;
/* pcapng: interface description block file encoding */
typedef struct pcapng_interface_description_block_s {
uint16_t linktype;
uint16_t reserved;
uint32_t snaplen;
/* ... Options ... */
} pcapng_interface_description_block_t;
/* pcapng: interface statistics block file encoding */
typedef struct pcapng_interface_statistics_block_s {
uint32_t interface_id;
uint32_t timestamp_high;
uint32_t timestamp_low;
/* ... Options ... */
} pcapng_interface_statistics_block_t;
/* pcapng: Decryption Secrets Block file encoding */
typedef struct pcapng_decryption_secrets_block_s {
uint32_t secrets_type; /* Secrets Type, see secrets-types.h */
uint32_t secrets_len; /* Size of variable-length secrets data. */
/* x bytes Secrets Data. */
/* ... Options ... */
} pcapng_decryption_secrets_block_t;
struct pcapng_option_header {
uint16_t type;
uint16_t value_length;
};
/*
* Minimum IDB size = minimum block size + size of fixed length portion of IDB.
*/
#define MIN_IDB_SIZE ((uint32_t)(MIN_BLOCK_SIZE + sizeof(pcapng_interface_description_block_t)))
#define MIN_DSB_SIZE ((uint32_t)(MIN_BLOCK_SIZE + sizeof(pcapng_decryption_secrets_block_t)))
wtap_open_return_val pcapng_open(wtap *wth, int *err, char **err_info);
#endif
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