forked from osmocom/wireshark
308 lines
9.7 KiB
C
308 lines
9.7 KiB
C
/** @file
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*
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* Copyright 2004-2013, Irene Ruengeler <i.ruengeler [AT] fh-muenster.de>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef __TAP_SCTP_ANALYSIS_H__
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#define __TAP_SCTP_ANALYSIS_H__
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#include <stdbool.h>
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#include <epan/dissectors/packet-sctp.h>
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#include <epan/address.h>
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#ifdef _WIN32
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#include <winsock2.h>
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#else
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define CHUNK_TYPE_LENGTH 1
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#define CHUNK_FLAGS_LENGTH 1
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#define CHUNK_LENGTH_LENGTH 2
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#define CHUNK_HEADER_OFFSET 0
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#define CHUNK_TYPE_OFFSET CHUNK_HEADER_OFFSET
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#define CHUNK_FLAGS_OFFSET (CHUNK_TYPE_OFFSET + CHUNK_TYPE_LENGTH)
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#define CHUNK_LENGTH_OFFSET (CHUNK_FLAGS_OFFSET + CHUNK_FLAGS_LENGTH)
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#define CHUNK_VALUE_OFFSET (CHUNK_LENGTH_OFFSET + CHUNK_LENGTH_LENGTH)
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#define INIT_CHUNK_INITIATE_TAG_LENGTH 4
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#define INIT_CHUNK_ADV_REC_WINDOW_CREDIT_LENGTH 4
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#define INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_LENGTH 2
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#define INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_LENGTH 2
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#define INIT_CHUNK_INITIATE_TAG_OFFSET CHUNK_VALUE_OFFSET
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#define INIT_CHUNK_ADV_REC_WINDOW_CREDIT_OFFSET (INIT_CHUNK_INITIATE_TAG_OFFSET + \
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INIT_CHUNK_INITIATE_TAG_LENGTH )
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#define INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_OFFSET (INIT_CHUNK_ADV_REC_WINDOW_CREDIT_OFFSET + \
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INIT_CHUNK_ADV_REC_WINDOW_CREDIT_LENGTH )
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#define INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_OFFSET (INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_OFFSET + \
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INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_LENGTH )
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#define INIT_CHUNK_INITIAL_TSN_OFFSET (INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_OFFSET + \
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INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_LENGTH )
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#define DATA_CHUNK_TSN_LENGTH 4
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#define DATA_CHUNK_TSN_OFFSET (CHUNK_VALUE_OFFSET + 0)
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#define DATA_CHUNK_STREAM_ID_OFFSET (DATA_CHUNK_TSN_OFFSET + DATA_CHUNK_TSN_LENGTH)
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#define DATA_CHUNK_STREAM_ID_LENGTH 2
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#define DATA_CHUNK_STREAM_SEQ_NUMBER_LENGTH 2
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#define DATA_CHUNK_PAYLOAD_PROTOCOL_ID_LENGTH 4
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#define I_DATA_CHUNK_RESERVED_LENGTH 2
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#define I_DATA_CHUNK_MID_LENGTH 4
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#define I_DATA_CHUNK_PAYLOAD_PROTOCOL_ID_LENGTH 4
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#define I_DATA_CHUNK_FSN_LENGTH 4
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#define I_DATA_CHUNK_RESERVED_OFFSET (DATA_CHUNK_STREAM_ID_OFFSET + \
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DATA_CHUNK_STREAM_ID_LENGTH)
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#define I_DATA_CHUNK_MID_OFFSET (I_DATA_CHUNK_RESERVED_OFFSET + \
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I_DATA_CHUNK_RESERVED_LENGTH)
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#define I_DATA_CHUNK_PAYLOAD_PROTOCOL_ID_OFFSET (I_DATA_CHUNK_MID_OFFSET + \
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I_DATA_CHUNK_MID_LENGTH)
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#define I_DATA_CHUNK_FSN_OFFSET (I_DATA_CHUNK_MID_OFFSET + \
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I_DATA_CHUNK_MID_LENGTH)
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#define I_DATA_CHUNK_PAYLOAD_OFFSET (I_DATA_CHUNK_PAYLOAD_PROTOCOL_ID_OFFSET + \
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I_DATA_CHUNK_PAYLOAD_PROTOCOL_ID_LENGTH)
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#define DATA_CHUNK_HEADER_LENGTH (CHUNK_HEADER_LENGTH + \
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DATA_CHUNK_TSN_LENGTH + \
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DATA_CHUNK_STREAM_ID_LENGTH + \
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DATA_CHUNK_STREAM_SEQ_NUMBER_LENGTH + \
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DATA_CHUNK_PAYLOAD_PROTOCOL_ID_LENGTH)
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#define I_DATA_CHUNK_HEADER_LENGTH (CHUNK_HEADER_LENGTH + \
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DATA_CHUNK_TSN_LENGTH + \
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DATA_CHUNK_STREAM_ID_LENGTH + \
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I_DATA_CHUNK_RESERVED_LENGTH + \
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I_DATA_CHUNK_MID_LENGTH +\
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I_DATA_CHUNK_PAYLOAD_PROTOCOL_ID_LENGTH)
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#define MAX_ADDRESS_LEN 47
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#define SCTP_ABORT_CHUNK_T_BIT 0x01
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#define PARAMETER_TYPE_LENGTH 2
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#define PARAMETER_LENGTH_LENGTH 2
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#define PARAMETER_HEADER_LENGTH (PARAMETER_TYPE_LENGTH + PARAMETER_LENGTH_LENGTH)
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#define PARAMETER_HEADER_OFFSET 0
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#define PARAMETER_TYPE_OFFSET PARAMETER_HEADER_OFFSET
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#define PARAMETER_LENGTH_OFFSET (PARAMETER_TYPE_OFFSET + PARAMETER_TYPE_LENGTH)
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#define PARAMETER_VALUE_OFFSET (PARAMETER_LENGTH_OFFSET + PARAMETER_LENGTH_LENGTH)
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#define IPV6_ADDRESS_LENGTH 16
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#define IPV6_ADDRESS_OFFSET PARAMETER_VALUE_OFFSET
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#define IPV4_ADDRESS_LENGTH 4
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#define IPV4_ADDRESS_OFFSET PARAMETER_VALUE_OFFSET
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#define IPV4ADDRESS_PARAMETER_ID 0x0005
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#define IPV6ADDRESS_PARAMETER_ID 0x0006
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#define SACK_CHUNK_CUMULATIVE_TSN_ACK_LENGTH 4
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#define SACK_CHUNK_CUMULATIVE_TSN_ACK_OFFSET (CHUNK_VALUE_OFFSET + 0)
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#define SACK_CHUNK_ADV_REC_WINDOW_CREDIT_LENGTH 4
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#define SACK_CHUNK_ADV_REC_WINDOW_CREDIT_OFFSET (SACK_CHUNK_CUMULATIVE_TSN_ACK_OFFSET + \
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SACK_CHUNK_CUMULATIVE_TSN_ACK_LENGTH)
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#define INIT_CHUNK_INITIAL_TSN_LENGTH 4
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#define INIT_CHUNK_FIXED_PARAMETERS_LENGTH (INIT_CHUNK_INITIATE_TAG_LENGTH + \
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INIT_CHUNK_ADV_REC_WINDOW_CREDIT_LENGTH + \
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INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_LENGTH + \
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INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_LENGTH + \
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INIT_CHUNK_INITIAL_TSN_LENGTH)
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#define CHUNK_HEADER_LENGTH (CHUNK_TYPE_LENGTH + \
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CHUNK_FLAGS_LENGTH + \
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CHUNK_LENGTH_LENGTH)
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#define INIT_CHUNK_VARIABLE_LENGTH_PARAMETER_OFFSET (INIT_CHUNK_INITIAL_TSN_OFFSET + \
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INIT_CHUNK_INITIAL_TSN_LENGTH )
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/* The below value is 255 */
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#define NUM_CHUNKS 0x100
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/* This variable is used as an index into arrays
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* which store the cumulative information corresponding
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* all chunks with Chunk Type greater > 16
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* The value for the below variable is 17
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*/
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#define OTHER_CHUNKS_INDEX 0xfe
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/* VNB */
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/* This variable stores the maximum chunk type value
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* that can be associated with a sctp chunk.
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*/
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#define MAX_SCTP_CHUNK_TYPE 256
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typedef struct _tsn {
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guint32 frame_number;
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guint32 secs; /* Absolute seconds */
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guint32 usecs;
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address src;
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address dst;
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guint32 first_tsn;
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GList *tsns;
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} tsn_t;
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typedef struct _sctp_tmp_info {
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guint16 assoc_id;
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guint16 direction;
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address src;
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address dst;
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guint16 port1;
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guint16 port2;
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guint32 verification_tag1;
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guint32 verification_tag2;
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guint32 initiate_tag;
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guint32 n_tvbs;
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} sctp_tmp_info_t;
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typedef struct _sctp_init_collision {
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guint32 init_vtag; /* initiate tag of the INIT chunk */
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guint32 initack_vtag; /* initiate tag of the INIT-ACK chunk */
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guint32 init_min_tsn; /* initial tsn of the INIT chunk */
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guint32 initack_min_tsn; /* initial tsn of the INIT-ACK chunk */
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bool init:1;
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bool initack:1;
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} sctp_init_collision_t;
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struct tsn_sort{
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guint32 tsnumber;
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guint32 secs;
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guint32 usecs;
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guint32 offset;
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guint32 length;
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guint32 framenumber;
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};
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typedef struct _sctp_addr_chunk {
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guint32 direction;
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address addr;
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/* The array is initialized to MAX_SCTP_CHUNK_TYPE
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* so that there is no memory overwrite
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* when accessed using sctp chunk type as index.
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*/
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guint32 addr_count[MAX_SCTP_CHUNK_TYPE];
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} sctp_addr_chunk;
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typedef struct _sctp_assoc_info {
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guint16 assoc_id;
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address src;
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address dst;
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guint16 port1;
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guint16 port2;
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guint32 verification_tag1;
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guint32 verification_tag2;
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guint32 initiate_tag;
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guint32 n_tvbs;
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GList *addr1;
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GList *addr2;
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guint16 instream1;
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guint16 outstream1;
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guint16 instream2;
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guint16 outstream2;
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guint32 n_adler32_calculated;
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guint32 n_adler32_correct;
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guint32 n_crc32c_calculated;
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guint32 n_crc32c_correct;
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gchar checksum_type[8];
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guint32 n_checksum_errors;
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guint32 n_bundling_errors;
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guint32 n_padding_errors;
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guint32 n_length_errors;
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guint32 n_value_errors;
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guint32 n_data_chunks;
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guint32 n_forward_chunks;
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guint32 n_forward_chunks_ep1;
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guint32 n_forward_chunks_ep2;
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guint32 n_data_bytes;
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guint32 n_packets;
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guint32 n_data_chunks_ep1;
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guint32 n_data_bytes_ep1;
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guint32 n_data_chunks_ep2;
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guint32 n_data_bytes_ep2;
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guint32 n_sack_chunks_ep1;
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guint32 n_sack_chunks_ep2;
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guint32 n_array_tsn1;
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guint32 n_array_tsn2;
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guint32 max_window1;
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guint32 max_window2;
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guint32 arwnd1;
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guint32 arwnd2;
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bool init:1;
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bool initack:1;
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bool firstdata:1;
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bool init_collision:1;
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guint16 initack_dir;
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guint16 direction;
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guint32 min_secs;
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guint32 min_usecs;
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guint32 max_secs;
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guint32 max_usecs;
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guint32 min_tsn1;
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guint32 min_tsn2;
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guint32 max_tsn1;
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guint32 max_tsn2;
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guint32 max_bytes1;
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guint32 max_bytes2;
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sctp_init_collision_t *dir1;
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sctp_init_collision_t *dir2;
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GSList *min_max;
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GList *frame_numbers;
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GList *tsn1;
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GPtrArray *sort_tsn1;
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GPtrArray *sort_sack1;
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GList *sack1;
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GList *tsn2;
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GPtrArray *sort_tsn2;
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GPtrArray *sort_sack2;
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GList *sack2;
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gboolean check_address;
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GList* error_info_list;
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/* The array is initialized to MAX_SCTP_CHUNK_TYPE
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* so that there is no memory overwrite
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* when accessed using sctp chunk type as index.
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*/
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guint32 chunk_count[MAX_SCTP_CHUNK_TYPE];
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guint32 ep1_chunk_count[MAX_SCTP_CHUNK_TYPE];
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guint32 ep2_chunk_count[MAX_SCTP_CHUNK_TYPE];
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GList *addr_chunk_count;
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} sctp_assoc_info_t;
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typedef struct _sctp_error_info {
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guint32 frame_number;
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gchar chunk_info[200];
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const gchar *info_text;
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} sctp_error_info_t;
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typedef struct _sctp_allassocs_info {
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guint32 sum_tvbs;
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GList *assoc_info_list;
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gboolean is_registered;
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GList *children;
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} sctp_allassocs_info_t;
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void register_tap_listener_sctp_stat(void);
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const sctp_allassocs_info_t* sctp_stat_get_info(void);
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void sctp_stat_scan(void);
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void remove_tap_listener_sctp_stat(void);
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const sctp_assoc_info_t* get_sctp_assoc_info(guint16 assoc_id);
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const sctp_assoc_info_t* get_selected_assoc(void);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __TAP_SCTP_ANALYSIS_H__ */
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