File /code/strss7/include/sys/xti_sctp.h

#ifndef _SYS_XTI_SCTP_H
#define _SYS_XTI_SCTP_H

#ident "@(#) $Name:  $($Revision: 0.8.2.1 $) Copyright (c) 1997-2002 OpenSS7 Corporation."

#ifndef t_uscalar_t
#define t_uscalar_t ulong
#define t_scalar_t  long
#endif

typedef struct sctp_addr {
	uint16_t port __attribute__ ((packed));
	uint32_t addr[0] __attribute__ ((packed));
} sctp_addr_t;

#define T_INET_SCTP	132	/* SCTP level (same as protocol number) */

/*
 *  SCTP Transport Provider Options
 */
#define T_SCTP_NODELAY			 1
#define T_SCTP_CORK			 2
#define T_SCTP_PPI			 3
#define T_SCTP_SID			 4
#define T_SCTP_SSN			 5
#define T_SCTP_TSN			 6
#define T_SCTP_RECVOPT			 7
#define T_SCTP_COOKIE_LIFE		 8
#define T_SCTP_SACK_DELAY		 9
#define T_SCTP_PATH_MAX_RETRANS		10
#define T_SCTP_ASSOC_MAX_RETRANS	11
#define T_SCTP_MAX_INIT_RETRIES		12
#define T_SCTP_HEARTBEAT_ITVL		13
#define T_SCTP_RTO_INITIAL		14
#define T_SCTP_RTO_MIN			15
#define T_SCTP_RTO_MAX			16
#define T_SCTP_OSTREAMS			17
#define T_SCTP_ISTREAMS			18
#define T_SCTP_COOKIE_INC		19
#define T_SCTP_THROTTLE_ITVL		20
#define T_SCTP_MAC_TYPE			21

#ifndef SCTP_HMAC_NONE
#define SCTP_HMAC_NONE      0
#define SCTP_HMAC_SHA_1     1
#define SCTP_HMAC_MD5       2
#endif

#define T_SCTP_HB			22
typedef struct t_sctp_hb {
	uint32_t hb_dest;		/* destination address */
	t_uscalar_t hb_onoff;		/* activation flag */
	t_uscalar_t hb_itvl;		/* interval in milliseconds */
} t_sctp_hb_t;

#define T_SCTP_RTO			23
typedef struct t_sctp_rto {
	uint32_t rto_dest;		/* destination address */
	t_uscalar_t rto_initial;	/* RTO.Initial (milliseconds) */
	t_uscalar_t rto_min;		/* RTO.Min (milliseconds) */
	t_uscalar_t rto_max;		/* RTO.Max (milliseconds) */
	t_uscalar_t max_retrans;	/* Path.Max.Retrans (retries) */
} t_sctp_rto_t;

/*
 *  Read-only options...
 */
#define T_SCTP_MAXSEG			24
#define T_SCTP_STATUS			25
typedef struct t_sctp_dest_status {
	t_uscalar_t dest_addr;		/* dest address */
	t_uscalar_t dest_cwnd;		/* dest congestion window */
	t_uscalar_t dest_unack;		/* dest unacknowledged chunks */
	t_uscalar_t dest_srtt;		/* dest smooth round trip time */
	t_uscalar_t dest_rvar;		/* dest rtt variance */
	t_uscalar_t dest_rto;		/* dest current rto */
	t_uscalar_t dest_sst;		/* dest slow start threshold */
} t_sctp_dest_status_t;

typedef struct t_sctp_status {
	t_uscalar_t curr_rwnd;		/* current receive window */
	t_uscalar_t curr_rbuf;		/* current receive buffer */
	t_uscalar_t curr_nrep;		/* current dests reported */
	t_sctp_dest_status_t curr_dest[0];	/* current primary dest */
} t_sctp_status_t;

#define T_SCTP_DEBUG			26

#ifndef SCTP_OPTION_DROPPING
#define SCTP_OPTION_DROPPING	0x01	/* stream will drop packets */
#define SCTP_OPTION_BREAK	0x02	/* stream will break dest #1 */
#define SCTP_OPTION_DBREAK	0x04	/* stream will break dest both ways */
#define SCTP_OPTION_RANDOM	0x08	/* stream will drop packets at random */
#endif

#endif				/* _SYS_XTI_SCTP_H */