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freebsd/sys/netatm/uni/q2110_sigaa.c
David E. O'Brien 81a6b595de Use __FBSDID().
2003-06-11 07:22:30 +00:00

517 lines
11 KiB
C
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/*
* ===================================
* HARP | Host ATM Research Platform
* ===================================
*
*
* This Host ATM Research Platform ("HARP") file (the "Software") is
* made available by Network Computing Services, Inc. ("NetworkCS")
* "AS IS". NetworkCS does not provide maintenance, improvements or
* support of any kind.
*
* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
* In no event shall NetworkCS be responsible for any damages, including
* but not limited to consequential damages, arising from or relating to
* any use of the Software or related support.
*
* Copyright 1994-1998 Network Computing Services, Inc.
*
* Copies of this Software may be made, however, the above copyright
* notice must be reproduced on all copies.
*/
/*
* ATM Forum UNI Support
* ---------------------
*
* ITU-T Q.2110 - Process AA-signals (SAP_SSCOP)
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netatm/port.h>
#include <netatm/queue.h>
#include <netatm/atm.h>
#include <netatm/atm_sys.h>
#include <netatm/atm_cm.h>
#include <netatm/uni/sscop.h>
#include <netatm/uni/sscop_misc.h>
#include <netatm/uni/sscop_var.h>
/*
* Local functions
*/
static void sscop_resreq_ready(struct sscop *, intptr_t, intptr_t);
static void sscop_resrsp_inresyn(struct sscop *, intptr_t, intptr_t);
static void sscop_recrsp_recovrsp(struct sscop *, intptr_t, intptr_t);
static void sscop_recrsp_inrecov(struct sscop *, intptr_t, intptr_t);
/*
* Stack command state lookup tables
*/
/* SSCOP_INIT */
static void (*sscop_init_tab[SOS_NUMSTATES])
(struct sscop *, intptr_t, intptr_t) = {
sscop_init_inst, /* SOS_INST */
NULL, /* SOS_IDLE */
NULL, /* SOS_OUTCONN */
NULL, /* SOS_INCONN */
NULL, /* SOS_OUTDISC */
NULL, /* SOS_OUTRESYN */
NULL, /* SOS_INRESYN */
NULL, /* SOS_OUTRECOV */
NULL, /* SOS_RECOVRSP */
NULL, /* SOS_INRECOV */
NULL, /* SOS_READY */
NULL /* SOS_TERM */
};
/* SSCOP_TERM */
static void (*sscop_term_tab[SOS_NUMSTATES])
(struct sscop *, intptr_t, intptr_t) = {
sscop_term_all, /* SOS_INST */
sscop_term_all, /* SOS_IDLE */
sscop_term_all, /* SOS_OUTCONN */
sscop_term_all, /* SOS_INCONN */
sscop_term_all, /* SOS_OUTDISC */
sscop_term_all, /* SOS_OUTRESYN */
sscop_term_all, /* SOS_INRESYN */
sscop_term_all, /* SOS_OUTRECOV */
sscop_term_all, /* SOS_RECOVRSP */
sscop_term_all, /* SOS_INRECOV */
sscop_term_all, /* SOS_READY */
sscop_term_all /* SOS_TERM */
};
/* SSCOP_ESTABLISH_REQ */
static void (*sscop_estreq_tab[SOS_NUMSTATES])
(struct sscop *, intptr_t, intptr_t) = {
NULL, /* SOS_INST */
sscop_estreq_idle, /* SOS_IDLE */
NULL, /* SOS_OUTCONN */
NULL, /* SOS_INCONN */
sscop_estreq_idle, /* SOS_OUTDISC */
NULL, /* SOS_OUTRESYN */
NULL, /* SOS_INRESYN */
NULL, /* SOS_OUTRECOV */
NULL, /* SOS_RECOVRSP */
NULL, /* SOS_INRECOV */
NULL, /* SOS_READY */
sscop_aa_noop_1 /* SOS_TERM */
};
/* SSCOP_ESTABLISH_RSP */
static void (*sscop_estrsp_tab[SOS_NUMSTATES])
(struct sscop *, intptr_t, intptr_t) = {
NULL, /* SOS_INST */
NULL, /* SOS_IDLE */
NULL, /* SOS_OUTCONN */
sscop_estrsp_inconn, /* SOS_INCONN */
NULL, /* SOS_OUTDISC */
NULL, /* SOS_OUTRESYN */
NULL, /* SOS_INRESYN */
NULL, /* SOS_OUTRECOV */
NULL, /* SOS_RECOVRSP */
NULL, /* SOS_INRECOV */
NULL, /* SOS_READY */
sscop_aa_noop_1 /* SOS_TERM */
};
/* SSCOP_RELEASE_REQ */
static void (*sscop_relreq_tab[SOS_NUMSTATES])
(struct sscop *, intptr_t, intptr_t) = {
NULL, /* SOS_INST */
NULL, /* SOS_IDLE */
sscop_relreq_outconn, /* SOS_OUTCONN */
sscop_relreq_inconn, /* SOS_INCONN */
NULL, /* SOS_OUTDISC */
sscop_relreq_outconn, /* SOS_OUTRESYN */
sscop_relreq_outconn, /* SOS_INRESYN */
sscop_relreq_ready, /* SOS_OUTRECOV */
sscop_relreq_outconn, /* SOS_RECOVRSP */
sscop_relreq_outconn, /* SOS_INRECOV */
sscop_relreq_ready, /* SOS_READY */
sscop_aa_noop_1 /* SOS_TERM */
};
/* SSCOP_DATA_REQ */
static void (*sscop_datreq_tab[SOS_NUMSTATES])
(struct sscop *, intptr_t, intptr_t) = {
NULL, /* SOS_INST */
NULL, /* SOS_IDLE */
NULL, /* SOS_OUTCONN */
NULL, /* SOS_INCONN */
NULL, /* SOS_OUTDISC */
NULL, /* SOS_OUTRESYN */
NULL, /* SOS_INRESYN */
sscop_aa_noop_1, /* SOS_OUTRECOV */
NULL, /* SOS_RECOVRSP */
NULL, /* SOS_INRECOV */
sscop_datreq_ready, /* SOS_READY */
sscop_aa_noop_1 /* SOS_TERM */
};
/* SSCOP_RESYNC_REQ */
static void (*sscop_resreq_tab[SOS_NUMSTATES])
(struct sscop *, intptr_t, intptr_t) = {
NULL, /* SOS_INST */
NULL, /* SOS_IDLE */
NULL, /* SOS_OUTCONN */
NULL, /* SOS_INCONN */
NULL, /* SOS_OUTDISC */
NULL, /* SOS_OUTRESYN */
NULL, /* SOS_INRESYN */
sscop_resreq_ready, /* SOS_OUTRECOV */
sscop_resreq_ready, /* SOS_RECOVRSP */
sscop_resreq_ready, /* SOS_INRECOV */
sscop_resreq_ready, /* SOS_READY */
sscop_aa_noop_1 /* SOS_TERM */
};
/* SSCOP_RESYNC_RSP */
static void (*sscop_resrsp_tab[SOS_NUMSTATES])
(struct sscop *, intptr_t, intptr_t) = {
NULL, /* SOS_INST */
NULL, /* SOS_IDLE */
NULL, /* SOS_OUTCONN */
NULL, /* SOS_INCONN */
NULL, /* SOS_OUTDISC */
NULL, /* SOS_OUTRESYN */
sscop_resrsp_inresyn, /* SOS_INRESYN */
NULL, /* SOS_OUTRECOV */
NULL, /* SOS_RECOVRSP */
NULL, /* SOS_INRECOV */
NULL, /* SOS_READY */
sscop_aa_noop_0 /* SOS_TERM */
};
/* SSCOP_RECOVER_RSP */
static void (*sscop_recrsp_tab[SOS_NUMSTATES])
(struct sscop *, intptr_t, intptr_t) = {
NULL, /* SOS_INST */
NULL, /* SOS_IDLE */
NULL, /* SOS_OUTCONN */
NULL, /* SOS_INCONN */
NULL, /* SOS_OUTDISC */
NULL, /* SOS_OUTRESYN */
NULL, /* SOS_INRESYN */
NULL, /* SOS_OUTRECOV */
sscop_recrsp_recovrsp, /* SOS_RECOVRSP */
sscop_recrsp_inrecov, /* SOS_INRECOV */
NULL, /* SOS_READY */
sscop_aa_noop_0 /* SOS_TERM */
};
/* SSCOP_UNITDATA_REQ */
static void (*sscop_udtreq_tab[SOS_NUMSTATES])
(struct sscop *, intptr_t, intptr_t) = {
NULL, /* SOS_INST */
sscop_udtreq_all, /* SOS_IDLE */
sscop_udtreq_all, /* SOS_OUTCONN */
sscop_udtreq_all, /* SOS_INCONN */
sscop_udtreq_all, /* SOS_OUTDISC */
sscop_udtreq_all, /* SOS_OUTRESYN */
sscop_udtreq_all, /* SOS_INRESYN */
sscop_udtreq_all, /* SOS_OUTRECOV */
sscop_udtreq_all, /* SOS_RECOVRSP */
sscop_udtreq_all, /* SOS_INRECOV */
sscop_udtreq_all, /* SOS_READY */
sscop_aa_noop_1 /* SOS_TERM */
};
/* SSCOP_RETRIEVE_REQ */
static void (*sscop_retreq_tab[SOS_NUMSTATES])
(struct sscop *, intptr_t, intptr_t) = {
NULL, /* SOS_INST */
NULL, /* SOS_IDLE */
NULL, /* SOS_OUTCONN */
NULL, /* SOS_INCONN */
NULL, /* SOS_OUTDISC */
NULL, /* SOS_OUTRESYN */
NULL, /* SOS_INRESYN */
NULL, /* SOS_OUTRECOV */
NULL, /* SOS_RECOVRSP */
NULL, /* SOS_INRECOV */
NULL, /* SOS_READY */
NULL /* SOS_TERM */
};
/*
* Stack command lookup table
*/
void (*(*sscop_q2110_aatab[SSCOP_CMD_SIZE]))
(struct sscop *, intptr_t, intptr_t) = {
NULL,
sscop_init_tab,
sscop_term_tab,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
sscop_estreq_tab,
NULL,
sscop_estrsp_tab,
NULL,
sscop_relreq_tab,
NULL,
NULL,
sscop_datreq_tab,
NULL,
sscop_resreq_tab,
NULL,
sscop_resrsp_tab,
NULL,
NULL,
sscop_recrsp_tab,
sscop_udtreq_tab,
NULL,
sscop_retreq_tab,
NULL,
NULL
};
/*
* SSCOP_RESYNC_REQ / SOS_READY Command Processor
*
* Arguments:
* sop pointer to sscop connection block
* arg1 pointer to buffer containing SSCOP-UU data
* arg2 unused
*
* Returns:
* none
*
*/
static void
sscop_resreq_ready(sop, arg1, arg2)
struct sscop *sop;
intptr_t arg1;
intptr_t arg2;
{
/*
* We don't support SSCOP-UU data
*/
if (arg1 != SSCOP_UU_NULL)
KB_FREEALL((KBuffer *)arg1);
/*
* Stop data transfer timers
*/
sop->so_timer[SSCOP_T_POLL] = 0;
sop->so_timer[SSCOP_T_NORESP] = 0;
sop->so_timer[SSCOP_T_IDLE] = 0;
sop->so_flags &= ~SOF_KEEPALIVE;
/*
* Initialize receiver window
*/
SEQ_SET(sop->so_rcvmax, sop->so_parm.sp_rcvwin);
/*
* Send first RS PDU
*/
sop->so_connctl = 1;
SEQ_INCR(sop->so_sendconn, 1);
(void) sscop_send_rs(sop);
/*
* Drain transmit and receive queues
*/
sscop_xmit_drain(sop);
sscop_rcvr_drain(sop);
/*
* Set retransmit timer
*/
sop->so_timer[SSCOP_T_CC] = sop->so_parm.sp_timecc;
/*
* Wait for RSAK
*/
sop->so_state = SOS_OUTRESYN;
return;
}
/*
* SSCOP_RESYNC_RSP / SOS_INRESYN Command Processor
*
* Arguments:
* sop pointer to sscop connection block
* arg1 unused
* arg2 unused
*
* Returns:
* none
*
*/
static void
sscop_resrsp_inresyn(sop, arg1, arg2)
struct sscop *sop;
intptr_t arg1;
intptr_t arg2;
{
/*
* Clear transmitter buffers
*/
q2110_clear_xmit(sop);
/*
* Initialize state variables
*/
SEQ_SET(sop->so_rcvmax, sop->so_parm.sp_rcvwin);
q2110_init_state(sop);
/*
* Send RSAK PDU
*/
(void) sscop_send_rsak(sop);
/*
* Start data transfer timers
*/
sop->so_timer[SSCOP_T_POLL] = sop->so_parm.sp_timepoll;
sop->so_timer[SSCOP_T_NORESP] = sop->so_parm.sp_timeresp;
/*
* Back to data transfer state
*/
sop->so_state = SOS_READY;
return;
}
/*
* SSCOP_RECOVER_RSP / SOS_RECOVRSP Command Processor
*
* Arguments:
* sop pointer to sscop connection block
* arg1 unused
* arg2 unused
*
* Returns:
* none
*
*/
static void
sscop_recrsp_recovrsp(sop, arg1, arg2)
struct sscop *sop;
intptr_t arg1;
intptr_t arg2;
{
/*
* Clear transmitter buffers, if not done earlier
*/
if (sop->so_flags & SOF_NOCLRBUF)
q2110_clear_xmit(sop);
/*
* Initialize state variables
*/
q2110_init_state(sop);
/*
* Start data transfer timers
*/
sop->so_timer[SSCOP_T_POLL] = sop->so_parm.sp_timepoll;
sop->so_timer[SSCOP_T_NORESP] = sop->so_parm.sp_timeresp;
/*
* Back to data transfer state
*/
sop->so_state = SOS_READY;
/*
* See if transmit queues need servicing
*/
if (sop->so_flags & SOF_XMITSRVC)
sscop_service_xmit(sop);
return;
}
/*
* SSCOP_RECOVER_RSP / SOS_INRECOV Command Processor
*
* Arguments:
* sop pointer to sscop connection block
* arg1 unused
* arg2 unused
*
* Returns:
* none
*
*/
static void
sscop_recrsp_inrecov(sop, arg1, arg2)
struct sscop *sop;
intptr_t arg1;
intptr_t arg2;
{
/*
* Clear transmitter buffers, if not done earlier
*/
if (sop->so_flags & SOF_NOCLRBUF)
q2110_clear_xmit(sop);
/*
* Initialize state variables
*/
SEQ_SET(sop->so_rcvmax, sop->so_parm.sp_rcvwin);
q2110_init_state(sop);
/*
* Send ERAK PDU
*/
(void) sscop_send_erak(sop);
/*
* Start data transfer timers
*/
sop->so_timer[SSCOP_T_POLL] = sop->so_parm.sp_timepoll;
sop->so_timer[SSCOP_T_NORESP] = sop->so_parm.sp_timeresp;
/*
* Back to data transfer state
*/
sop->so_state = SOS_READY;
/*
* See if transmit queues need servicing
*/
if (sop->so_flags & SOF_XMITSRVC)
sscop_service_xmit(sop);
return;
}
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