284 lines
10 KiB
C
284 lines
10 KiB
C
/*
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*
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* ===================================
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* HARP | Host ATM Research Platform
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* ===================================
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*
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*
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* This Host ATM Research Platform ("HARP") file (the "Software") is
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* made available by Network Computing Services, Inc. ("NetworkCS")
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* "AS IS". NetworkCS does not provide maintenance, improvements or
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* support of any kind.
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*
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* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
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* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
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* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
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* In no event shall NetworkCS be responsible for any damages, including
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* but not limited to consequential damages, arising from or relating to
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* any use of the Software or related support.
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*
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* Copyright 1994-1998 Network Computing Services, Inc.
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*
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* Copies of this Software may be made, however, the above copyright
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* notice must be reproduced on all copies.
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*
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* @(#) $FreeBSD$
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*
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*/
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/*
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* ATM Forum UNI Support
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* ---------------------
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*
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* SSCOP protocol control blocks
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*
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*/
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#ifndef _UNI_SSCOP_VAR_H
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#define _UNI_SSCOP_VAR_H
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/*
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* Structure containing information for each SSCOP connection.
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*/
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struct sscop {
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struct sscop *so_next; /* Next connection in chain */
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u_char so_state; /* Connection state (see below) */
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u_short so_flags; /* Connection flags (see below) */
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enum sscop_vers so_vers; /* SSCOP version */
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/* Transmitter variables */
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sscop_seq so_send; /* VT(S) - next SD to send */
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sscop_seq so_sendmax; /* VT(MS) - max SD to send + 1 */
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sscop_seq so_ack; /* VT(A) - next expected ack */
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sscop_seq so_pollsend; /* VT(PS) - last POLL sent */
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sscop_seq so_pollack; /* VT(PA) - next expected STAT */
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short so_polldata; /* VT(PD) - SD's sent between POLLs */
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short so_connctl; /* VT(CC) - un-ack'd BGN,END,ER,RS */
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u_char so_sendconn; /* VT(SQ) - last BGN,ER,RS sent */
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/* Receiver variables */
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sscop_seq so_rcvnext; /* VR(R) - next SD to receive */
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sscop_seq so_rcvhigh; /* VR(H) - next highest SD to receive */
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sscop_seq so_rcvmax; /* VR(MR) - max SD to receive + 1 */
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u_char so_rcvconn; /* VR(SQ) - last BGN,ER,RS received */
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/* PDU queues */
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KBuffer *so_xmit_hd; /* SD transmission queue head */
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KBuffer *so_xmit_tl; /* SD transmission queue tail */
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struct pdu_hdr *so_rexmit_hd; /* SD retransmission queue head */
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struct pdu_hdr *so_rexmit_tl; /* SD retransmission queue head */
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struct pdu_hdr *so_pack_hd; /* SD pending ack queue head */
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struct pdu_hdr *so_pack_tl; /* SD pending ack queue tail */
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struct pdu_hdr *so_recv_hd; /* SD receive queue head */
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struct pdu_hdr *so_recv_tl; /* SD receive queue tail */
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/* Connection parameters */
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struct sscop_parms so_parm; /* Connection parameters */
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/* Timers */
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u_short so_timer[SSCOP_T_NUM]; /* Connection timers */
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/* Stack variables */
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Atm_connvc *so_connvc; /* Connection vcc for this stack */
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void *so_toku; /* Stack upper layer's token */
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void *so_tokl; /* Stack lower layer's token */
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void (*so_upper) /* Stack upper layer's interface */
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(int, void *, int, int);
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void (*so_lower) /* Stack lower layer's interface */
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(int, void *, int, int);
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u_short so_headout; /* Output buffer headroom */
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};
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/*
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* Connection States
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*
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* Notes:
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* # - state valid only for Q.SAAL1
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* ## - state valid only for Q.2110
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*/
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#define SOS_INST 0 /* Instantiated, waiting for INIT */
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#define SOS_IDLE 1 /* Idle connection */
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#define SOS_OUTCONN 2 /* Outgoing connection pending */
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#define SOS_INCONN 3 /* Incoming connection pending */
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#define SOS_OUTDISC 4 /* Outgoing disconnection pending */
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#define SOS_OUTRESYN 5 /* Outgoing resynchronization pending */
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#define SOS_INRESYN 6 /* Incoming resynchronization pending */
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#define SOS_CONRESYN 7 /* Concurrent resynch pending (#) */
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#define SOS_OUTRECOV 7 /* Outgoing recovery pending (##) */
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#define SOS_RECOVRSP 8 /* Recovery response pending (##) */
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#define SOS_INRECOV 9 /* Incoming recovery pending (##) */
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#define SOS_READY 10 /* Data transfer ready */
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#define SOS_TERM 11 /* Waiting for TERM */
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#define SOS_MAXSTATE 11 /* Maximum state value */
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#define SOS_NUMSTATES (SOS_MAXSTATE+1)/* Number of states */
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/*
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* Connection Flags
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*/
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#define SOF_NOCLRBUF 0x0001 /* Clear buffers = no */
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#define SOF_REESTAB 0x0002 /* SSCOP initiated reestablishment */
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#define SOF_XMITSRVC 0x0004 /* Transmit queues need servicing */
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#define SOF_KEEPALIVE 0x0008 /* Polling in transient phase */
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#define SOF_ENDSSCOP 0x0010 /* Last END PDU, SOURCE=SSCOP */
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#define SOF_NOCREDIT 0x0020 /* Transmit window closed */
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/*
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* SSCOP statistics
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*/
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struct sscop_stat {
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u_long sos_connects; /* Connection instances */
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u_long sos_aborts; /* Connection aborts */
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u_long sos_maa_error[MAA_ERROR_COUNT]; /* Management errors */
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};
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#ifdef _KERNEL
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/*
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* Global function declarations
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*/
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/* sscop.c */
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int sscop_start(void);
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int sscop_stop(void);
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void sscop_maa_error(struct sscop *, int);
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void sscop_abort(struct sscop *, char *);
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/* sscop_lower.c */
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void sscop_lower(int, void *, int, int);
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void sscop_aa_noop_0(struct sscop *, int, int);
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void sscop_aa_noop_1(struct sscop *, int, int);
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void sscop_init_inst(struct sscop *, int, int);
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void sscop_term_all(struct sscop *, int, int);
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/* sscop_pdu.c */
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int sscop_send_bgn(struct sscop *, int);
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int sscop_send_bgak(struct sscop *);
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int sscop_send_bgrej(struct sscop *);
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int sscop_send_end(struct sscop *, int);
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int sscop_send_endak(struct sscop *);
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int sscop_send_rs(struct sscop *);
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int sscop_send_rsak(struct sscop *);
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int sscop_send_er(struct sscop *);
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int sscop_send_erak(struct sscop *);
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int sscop_send_poll(struct sscop *);
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int sscop_send_stat(struct sscop *, sscop_seq);
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int sscop_send_ustat(struct sscop *, sscop_seq);
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int sscop_send_ud(struct sscop *, KBuffer *);
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void sscop_pdu_print(struct sscop *, KBuffer *, char *);
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/* sscop_sigaa.c */
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void sscop_estreq_idle(struct sscop *, int, int);
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void sscop_estrsp_inconn(struct sscop *, int, int);
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void sscop_relreq_outconn(struct sscop *, int, int);
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void sscop_relreq_inconn(struct sscop *, int, int);
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void sscop_relreq_ready(struct sscop *, int, int);
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void sscop_datreq_ready(struct sscop *, int, int);
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void sscop_udtreq_all(struct sscop *, int, int);
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/* sscop_sigcpcs.c */
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void sscop_noop(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgn_idle(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgn_outdisc(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgn_outresyn(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgn_inresyn(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgak_error(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgak_idle(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgak_outconn(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgrej_error(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgrej_outconn(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgrej_inconn(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgrej_outresyn(struct sscop *, KBuffer *, caddr_t);
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void sscop_bgrej_ready(struct sscop *, KBuffer *, caddr_t);
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void sscop_end_idle(struct sscop *, KBuffer *, caddr_t);
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void sscop_end_inconn(struct sscop *, KBuffer *, caddr_t);
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void sscop_end_outdisc(struct sscop *, KBuffer *, caddr_t);
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void sscop_endak_error(struct sscop *, KBuffer *, caddr_t);
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void sscop_endak_inconn(struct sscop *, KBuffer *, caddr_t);
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void sscop_endak_outdisc(struct sscop *, KBuffer *, caddr_t);
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void sscop_endak_ready(struct sscop *, KBuffer *, caddr_t);
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void sscop_rs_error(struct sscop *, KBuffer *, caddr_t);
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void sscop_rs_idle(struct sscop *, KBuffer *, caddr_t);
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void sscop_rsak_error(struct sscop *, KBuffer *, caddr_t);
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void sscop_rsak_idle(struct sscop *, KBuffer *, caddr_t);
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void sscop_rsak_outresyn(struct sscop *, KBuffer *, caddr_t);
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void sscop_sd_error(struct sscop *, KBuffer *, caddr_t);
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void sscop_sd_idle(struct sscop *, KBuffer *, caddr_t);
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void sscop_sd_inconn(struct sscop *, KBuffer *, caddr_t);
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void sscop_poll_error(struct sscop *, KBuffer *, caddr_t);
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void sscop_poll_idle(struct sscop *, KBuffer *, caddr_t);
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void sscop_poll_inconn(struct sscop *, KBuffer *, caddr_t);
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void sscop_stat_error(struct sscop *, KBuffer *, caddr_t);
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void sscop_stat_idle(struct sscop *, KBuffer *, caddr_t);
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void sscop_stat_inconn(struct sscop *, KBuffer *, caddr_t);
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void sscop_stat_ready(struct sscop *, KBuffer *, caddr_t);
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void sscop_ustat_error(struct sscop *, KBuffer *, caddr_t);
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void sscop_ustat_idle(struct sscop *, KBuffer *, caddr_t);
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void sscop_ustat_inconn(struct sscop *, KBuffer *, caddr_t);
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void sscop_ustat_ready(struct sscop *, KBuffer *, caddr_t);
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void sscop_ud_all(struct sscop *, KBuffer *, caddr_t);
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void sscop_md_all(struct sscop *, KBuffer *, caddr_t);
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/* sscop_subr.c */
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KBuffer * sscop_stat_getelem(KBuffer *, sscop_seq *);
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struct pdu_hdr *sscop_pack_locate(struct sscop *, sscop_seq);
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void sscop_pack_free(struct sscop *, sscop_seq);
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void sscop_rexmit_insert(struct sscop *, struct pdu_hdr *);
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void sscop_rexmit_unlink(struct sscop *, struct pdu_hdr *);
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void sscop_xmit_drain(struct sscop *);
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int sscop_recv_insert(struct sscop *, struct pdu_hdr *);
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void sscop_rcvr_drain(struct sscop *);
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void sscop_service_xmit(struct sscop *);
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int sscop_is_rexmit(struct sscop *, u_char);
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void sscop_set_poll(struct sscop *);
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/* sscop_timer.c */
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void sscop_timeout(struct atm_time *);
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/* sscop_upper.c */
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void sscop_upper(int, void *, int, int);
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/* q2110_sigaa.c */
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/* q2110_sigcpcs.c */
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/* q2110_subr.c */
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void q2110_clear_xmit(struct sscop *);
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void q2110_init_state(struct sscop *);
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void q2110_prep_retrieve(struct sscop *);
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void q2110_prep_recovery(struct sscop *);
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void q2110_deliver_data(struct sscop *);
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void q2110_error_recovery(struct sscop *);
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/* qsaal1_sigaa.c */
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/* qsaal1_sigcpcs.c */
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/* qsaal1_subr.c */
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void qsaal1_reestablish(struct sscop *);
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void qsaal1_reset_xmit(struct sscop *);
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void qsaal1_reset_rcvr(struct sscop *);
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void qsaal1_clear_connection(struct sscop *);
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/*
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* External variables
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*/
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extern struct sp_info sscop_pool;
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extern int sscop_vccnt;
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extern struct sscop *sscop_head;
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extern struct sscop_stat sscop_stat;
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extern struct atm_time sscop_timer;
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extern void (*(*sscop_qsaal_aatab[]))
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(struct sscop *, int, int);
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extern void (*(*sscop_q2110_aatab[]))
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(struct sscop *, int, int);
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extern void (*(*sscop_qsaal_pdutab[]))
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(struct sscop *, KBuffer *, caddr_t);
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extern void (*(*sscop_q2110_pdutab[]))
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(struct sscop *, KBuffer *, caddr_t);
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#endif /* _KERNEL */
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#endif /* _UNI_SSCOP_VAR_H */
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