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a2b84bf74f
a struct of the same name in <netinet/sctp.h>. This caused a compiliation error when Nmap was compiled with an OpenSSL that had SCTP support. [Olli Hauer, Daniel Roethlisberger]
180 lines
5.0 KiB
C
180 lines
5.0 KiB
C
/*
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* sctp.h
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*
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* Stream Control Transmission Protocol (RFC 4960).
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*
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* Copyright (c) 2008-2009 Daniel Roethlisberger <daniel@roe.ch>
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*
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* $Id: sctp.h 653 2009-07-05 21:00:00Z daniel@roe.ch $
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*/
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#ifndef DNET_SCTP_H
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#define DNET_SCTP_H
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#ifndef __GNUC__
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# ifndef __attribute__
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# define __attribute__(x)
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# endif
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# pragma pack(1)
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#endif
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#define SCTP_HDR_LEN 12
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struct sctp_hdr {
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uint16_t sh_sport; /* source port */
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uint16_t sh_dport; /* destination port */
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uint32_t sh_vtag; /* sctp verification tag */
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uint32_t sh_sum; /* sctp checksum */
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} __attribute__((__packed__));
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#define SCTP_PORT_MAX 65535
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#define sctp_pack_hdr(hdr, sport, dport, vtag) do { \
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struct sctp_hdr *sctp_pack_p = (struct sctp_hdr *)(hdr); \
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sctp_pack_p->sh_sport = htons(sport); \
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sctp_pack_p->sh_dport = htons(dport); \
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sctp_pack_p->sh_vtag = htonl(vtag); \
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} while (0)
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struct dnet_sctp_chunkhdr {
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uint8_t sch_type; /* chunk type */
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uint8_t sch_flags; /* chunk flags */
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uint16_t sch_length; /* chunk length */
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} __attribute__((__packed__));
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/* chunk types */
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#define SCTP_DATA 0x00
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#define SCTP_INIT 0x01
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#define SCTP_INIT_ACK 0x02
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#define SCTP_SACK 0x03
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#define SCTP_HEARTBEAT 0x04
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#define SCTP_HEARTBEAT_ACK 0x05
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#define SCTP_ABORT 0x06
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#define SCTP_SHUTDOWN 0x07
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#define SCTP_SHUTDOWN_ACK 0x08
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#define SCTP_ERROR 0x09
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#define SCTP_COOKIE_ECHO 0x0a
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#define SCTP_COOKIE_ACK 0x0b
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#define SCTP_ECNE 0x0c
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#define SCTP_CWR 0x0d
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#define SCTP_SHUTDOWN_COMPLETE 0x0e
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#define SCTP_AUTH 0x0f /* RFC 4895 */
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#define SCTP_ASCONF_ACK 0x80 /* RFC 5061 */
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#define SCTP_PKTDROP 0x81 /* draft-stewart-sctp-pktdrprep-08 */
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#define SCTP_PAD 0x84 /* RFC 4820 */
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#define SCTP_FORWARD_TSN 0xc0 /* RFC 3758 */
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#define SCTP_ASCONF 0xc1 /* RFC 5061 */
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/* chunk types bitmask flags */
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#define SCTP_TYPEFLAG_REPORT 1
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#define SCTP_TYPEFLAG_SKIP 2
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#define sctp_pack_chunkhdr(hdr, type, flags, length) do { \
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struct dnet_sctp_chunkhdr *sctp_pack_chp = (struct dnet_sctp_chunkhdr *)(hdr);\
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sctp_pack_chp->sch_type = type; \
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sctp_pack_chp->sch_flags = flags; \
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sctp_pack_chp->sch_length = htons(length); \
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} while (0)
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/*
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* INIT chunk
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*/
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struct sctp_chunkhdr_init {
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struct dnet_sctp_chunkhdr chunkhdr;
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uint32_t schi_itag; /* Initiate Tag */
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uint32_t schi_arwnd; /* Advertised Receiver Window Credit */
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uint16_t schi_nos; /* Number of Outbound Streams */
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uint16_t schi_nis; /* Number of Inbound Streams */
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uint32_t schi_itsn; /* Initial TSN */
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} __attribute__((__packed__));
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#define sctp_pack_chunkhdr_init(hdr, type, flags, length, itag, \
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arwnd, nos, nis, itsn) do { \
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struct sctp_chunkhdr_init *sctp_pack_chip = \
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(struct sctp_chunkhdr_init *)(hdr); \
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sctp_pack_chunkhdr(sctp_pack_chip, type, flags, length); \
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sctp_pack_chip->schi_itag = htonl(itag); \
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sctp_pack_chip->schi_arwnd = htonl(arwnd); \
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sctp_pack_chip->schi_nos = htons(nos); \
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sctp_pack_chip->schi_nis = htons(nis); \
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sctp_pack_chip->schi_itsn = htonl(itsn); \
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} while (0)
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/*
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* INIT ACK chunk
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*/
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struct sctp_chunkhdr_init_ack {
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struct dnet_sctp_chunkhdr chunkhdr;
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uint32_t schia_itag; /* Initiate Tag */
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uint32_t schia_arwnd; /* Advertised Receiver Window Credit */
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uint16_t schia_nos; /* Number of Outbound Streams */
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uint16_t schia_nis; /* Number of Inbound Streams */
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uint32_t schia_itsn; /* Initial TSN */
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} __attribute__((__packed__));
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#define sctp_pack_chunkhdr_init_ack(hdr, type, flags, length, itag, \
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arwnd, nos, nis, itsn) do { \
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struct sctp_chunkhdr_init_ack *sctp_pack_chip = \
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(struct sctp_chunkhdr_init_ack *)(hdr); \
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sctp_pack_chunkhdr(sctp_pack_chip, type, flags, length); \
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sctp_pack_chip->schia_itag = htonl(itag); \
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sctp_pack_chip->schia_arwnd = htonl(arwnd); \
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sctp_pack_chip->schia_nos = htons(nos); \
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sctp_pack_chip->schia_nis = htons(nis); \
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sctp_pack_chip->schia_itsn = htonl(itsn); \
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} while (0)
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/*
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* ABORT chunk
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*/
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struct sctp_chunkhdr_abort {
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struct dnet_sctp_chunkhdr chunkhdr;
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/* empty */
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} __attribute__((__packed__));
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#define sctp_pack_chunkhdr_abort(hdr, type, flags, length) do { \
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struct sctp_chunkhdr_abort *sctp_pack_chip = \
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(struct sctp_chunkhdr_abort *)(hdr); \
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sctp_pack_chunkhdr(sctp_pack_chip, type, flags, length); \
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} while (0)
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/*
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* SHUTDOWN ACK chunk
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*/
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struct sctp_chunkhdr_shutdown_ack {
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struct dnet_sctp_chunkhdr chunkhdr;
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/* empty */
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} __attribute__((__packed__));
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#define sctp_pack_chunkhdr_shutdown_ack(hdr, type, flags, length) do { \
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struct sctp_chunkhdr_shutdown_ack *sctp_pack_chip = \
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(struct sctp_chunkhdr_shutdown_ack *)(hdr); \
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sctp_pack_chunkhdr(sctp_pack_chip, type, flags, length); \
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} while (0)
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/*
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* COOKIE ECHO chunk
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*/
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struct sctp_chunkhdr_cookie_echo {
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struct dnet_sctp_chunkhdr chunkhdr;
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/* empty */
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} __attribute__((__packed__));
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#define sctp_pack_chunkhdr_cookie_echo(hdr, type, flags, length) do { \
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struct sctp_chunkhdr_cookie_echo *sctp_pack_chip = \
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(struct sctp_chunkhdr_cookie_echo *)(hdr); \
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sctp_pack_chunkhdr(sctp_pack_chip, type, flags, length); \
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} while (0)
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#ifndef __GNUC__
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# pragma pack()
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#endif
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#endif /* DNET_SCTP_H */
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