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Diffstat (limited to 'libdnet-stripped/include/dnet/sctp.h')
| -rw-r--r-- | libdnet-stripped/include/dnet/sctp.h | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/libdnet-stripped/include/dnet/sctp.h b/libdnet-stripped/include/dnet/sctp.h new file mode 100644 index 0000000..9451abc --- /dev/null +++ b/libdnet-stripped/include/dnet/sctp.h @@ -0,0 +1,179 @@ +/* + * sctp.h + * + * Stream Control Transmission Protocol (RFC 4960). + * + * Copyright (c) 2008-2009 Daniel Roethlisberger <daniel@roe.ch> + * + * $Id: sctp.h 653 2009-07-05 21:00:00Z daniel@roe.ch $ + */ + +#ifndef DNET_SCTP_H +#define DNET_SCTP_H + +#ifndef __GNUC__ +# ifndef __attribute__ +# define __attribute__(x) +# endif +# pragma pack(1) +#endif + +#define SCTP_HDR_LEN 12 + +struct sctp_hdr { + uint16_t sh_sport; /* source port */ + uint16_t sh_dport; /* destination port */ + uint32_t sh_vtag; /* sctp verification tag */ + uint32_t sh_sum; /* sctp checksum */ +} __attribute__((__packed__)); + +#define SCTP_PORT_MAX 65535 + +#define sctp_pack_hdr(hdr, sport, dport, vtag) do { \ + struct sctp_hdr *sctp_pack_p = (struct sctp_hdr *)(hdr); \ + sctp_pack_p->sh_sport = htons(sport); \ + sctp_pack_p->sh_dport = htons(dport); \ + sctp_pack_p->sh_vtag = htonl(vtag); \ +} while (0) + +struct dnet_sctp_chunkhdr { + uint8_t sch_type; /* chunk type */ + uint8_t sch_flags; /* chunk flags */ + uint16_t sch_length; /* chunk length */ +} __attribute__((__packed__)); + +/* chunk types */ +#define SCTP_DATA 0x00 +#define SCTP_INIT 0x01 +#define SCTP_INIT_ACK 0x02 +#define SCTP_SACK 0x03 +#define SCTP_HEARTBEAT 0x04 +#define SCTP_HEARTBEAT_ACK 0x05 +#define SCTP_ABORT 0x06 +#define SCTP_SHUTDOWN 0x07 +#define SCTP_SHUTDOWN_ACK 0x08 +#define SCTP_ERROR 0x09 +#define SCTP_COOKIE_ECHO 0x0a +#define SCTP_COOKIE_ACK 0x0b +#define SCTP_ECNE 0x0c +#define SCTP_CWR 0x0d +#define SCTP_SHUTDOWN_COMPLETE 0x0e +#define SCTP_AUTH 0x0f /* RFC 4895 */ +#define SCTP_ASCONF_ACK 0x80 /* RFC 5061 */ +#define SCTP_PKTDROP 0x81 /* draft-stewart-sctp-pktdrprep-08 */ +#define SCTP_PAD 0x84 /* RFC 4820 */ +#define SCTP_FORWARD_TSN 0xc0 /* RFC 3758 */ +#define SCTP_ASCONF 0xc1 /* RFC 5061 */ + +/* chunk types bitmask flags */ +#define SCTP_TYPEFLAG_REPORT 1 +#define SCTP_TYPEFLAG_SKIP 2 + +#define sctp_pack_chunkhdr(hdr, type, flags, length) do { \ + struct dnet_sctp_chunkhdr *sctp_pack_chp = (struct dnet_sctp_chunkhdr *)(hdr);\ + sctp_pack_chp->sch_type = type; \ + sctp_pack_chp->sch_flags = flags; \ + sctp_pack_chp->sch_length = htons(length); \ +} while (0) + +/* + * INIT chunk + */ +struct sctp_chunkhdr_init { + struct dnet_sctp_chunkhdr chunkhdr; + + uint32_t schi_itag; /* Initiate Tag */ + uint32_t schi_arwnd; /* Advertised Receiver Window Credit */ + uint16_t schi_nos; /* Number of Outbound Streams */ + uint16_t schi_nis; /* Number of Inbound Streams */ + uint32_t schi_itsn; /* Initial TSN */ +} __attribute__((__packed__)); + +#define sctp_pack_chunkhdr_init(hdr, type, flags, length, itag, \ + arwnd, nos, nis, itsn) do { \ + struct sctp_chunkhdr_init *sctp_pack_chip = \ + (struct sctp_chunkhdr_init *)(hdr); \ + sctp_pack_chunkhdr(sctp_pack_chip, type, flags, length); \ + sctp_pack_chip->schi_itag = htonl(itag); \ + sctp_pack_chip->schi_arwnd = htonl(arwnd); \ + sctp_pack_chip->schi_nos = htons(nos); \ + sctp_pack_chip->schi_nis = htons(nis); \ + sctp_pack_chip->schi_itsn = htonl(itsn); \ +} while (0) + +/* + * INIT ACK chunk + */ +struct sctp_chunkhdr_init_ack { + struct dnet_sctp_chunkhdr chunkhdr; + + uint32_t schia_itag; /* Initiate Tag */ + uint32_t schia_arwnd; /* Advertised Receiver Window Credit */ + uint16_t schia_nos; /* Number of Outbound Streams */ + uint16_t schia_nis; /* Number of Inbound Streams */ + uint32_t schia_itsn; /* Initial TSN */ +} __attribute__((__packed__)); + +#define sctp_pack_chunkhdr_init_ack(hdr, type, flags, length, itag, \ + arwnd, nos, nis, itsn) do { \ + struct sctp_chunkhdr_init_ack *sctp_pack_chip = \ + (struct sctp_chunkhdr_init_ack *)(hdr); \ + sctp_pack_chunkhdr(sctp_pack_chip, type, flags, length); \ + sctp_pack_chip->schia_itag = htonl(itag); \ + sctp_pack_chip->schia_arwnd = htonl(arwnd); \ + sctp_pack_chip->schia_nos = htons(nos); \ + sctp_pack_chip->schia_nis = htons(nis); \ + sctp_pack_chip->schia_itsn = htonl(itsn); \ +} while (0) + +/* + * ABORT chunk + */ +struct sctp_chunkhdr_abort { + struct dnet_sctp_chunkhdr chunkhdr; + + /* empty */ +} __attribute__((__packed__)); + +#define sctp_pack_chunkhdr_abort(hdr, type, flags, length) do { \ + struct sctp_chunkhdr_abort *sctp_pack_chip = \ + (struct sctp_chunkhdr_abort *)(hdr); \ + sctp_pack_chunkhdr(sctp_pack_chip, type, flags, length); \ +} while (0) + +/* + * SHUTDOWN ACK chunk + */ +struct sctp_chunkhdr_shutdown_ack { + struct dnet_sctp_chunkhdr chunkhdr; + + /* empty */ +} __attribute__((__packed__)); + +#define sctp_pack_chunkhdr_shutdown_ack(hdr, type, flags, length) do { \ + struct sctp_chunkhdr_shutdown_ack *sctp_pack_chip = \ + (struct sctp_chunkhdr_shutdown_ack *)(hdr); \ + sctp_pack_chunkhdr(sctp_pack_chip, type, flags, length); \ +} while (0) + +/* + * COOKIE ECHO chunk + */ +struct sctp_chunkhdr_cookie_echo { + struct dnet_sctp_chunkhdr chunkhdr; + + /* empty */ +} __attribute__((__packed__)); + +#define sctp_pack_chunkhdr_cookie_echo(hdr, type, flags, length) do { \ + struct sctp_chunkhdr_cookie_echo *sctp_pack_chip = \ + (struct sctp_chunkhdr_cookie_echo *)(hdr); \ + sctp_pack_chunkhdr(sctp_pack_chip, type, flags, length); \ +} while (0) + +#ifndef __GNUC__ +# pragma pack() +#endif + +#endif /* DNET_SCTP_H */ + |