365 lines
6.5 KiB
C
365 lines
6.5 KiB
C
/*
|
|
*
|
|
* ===================================
|
|
* 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.
|
|
*
|
|
* @(#) $FreeBSD$
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* ATM Forum UNI Support
|
|
* ---------------------
|
|
*
|
|
* SSCOP - SSCOP SAP interface processing
|
|
*
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/time.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/syslog.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_sap.h>
|
|
#include <netatm/atm_cm.h>
|
|
#include <netatm/atm_if.h>
|
|
#include <netatm/atm_stack.h>
|
|
#include <netatm/atm_pcb.h>
|
|
#include <netatm/atm_var.h>
|
|
|
|
#include <netatm/uni/sscop.h>
|
|
#include <netatm/uni/sscop_misc.h>
|
|
#include <netatm/uni/sscop_var.h>
|
|
|
|
#ifndef lint
|
|
__RCSID("@(#) $FreeBSD$");
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Local variables
|
|
*/
|
|
/*
|
|
* Stack commands with arg1 containing an buffer pointer
|
|
*/
|
|
static u_char sscop_buf1[] = {
|
|
0,
|
|
0, /* SSCOP_INIT */
|
|
0, /* SSCOP_TERM */
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
1, /* SSCOP_ESTABLISH_REQ */
|
|
0,
|
|
1, /* SSCOP_ESTABLISH_RSP */
|
|
0,
|
|
1, /* SSCOP_RELEASE_REQ */
|
|
0,
|
|
0,
|
|
1, /* SSCOP_DATA_REQ */
|
|
0,
|
|
1, /* SSCOP_RESYNC_REQ */
|
|
0,
|
|
0, /* SSCOP_RESYNC_RSP */
|
|
0,
|
|
0,
|
|
0, /* SSCOP_RECOVER_RSP */
|
|
1, /* SSCOP_UNITDATA_REQ */
|
|
0,
|
|
0, /* SSCOP_RETRIEVE_REQ */
|
|
0,
|
|
0
|
|
};
|
|
|
|
|
|
/*
|
|
* SSCOP Lower Stack Command Handler
|
|
*
|
|
* This function will receive all of the stack commands issued from the
|
|
* layer above SSCOP (ie. using the SSCOP SAP). The appropriate processing
|
|
* function will be determined based on the received stack command and the
|
|
* current sscop control block state.
|
|
*
|
|
* Arguments:
|
|
* cmd stack command code
|
|
* tok session token
|
|
* arg1 command specific argument
|
|
* arg2 command specific argument
|
|
*
|
|
* Returns:
|
|
* none
|
|
*
|
|
*/
|
|
void
|
|
sscop_lower(cmd, tok, arg1, arg2)
|
|
int cmd;
|
|
void *tok;
|
|
int arg1;
|
|
int arg2;
|
|
{
|
|
struct sscop *sop = (struct sscop *)tok;
|
|
void (**stab) __P((struct sscop *, int, int));
|
|
void (*func) __P((struct sscop *, int, int));
|
|
int val;
|
|
|
|
ATM_DEBUG5("sscop_lower: cmd=0x%x, sop=%p, state=%d, arg1=0x%x, arg2=0x%x\n",
|
|
cmd, sop, sop->so_state, arg1, arg2);
|
|
|
|
/*
|
|
* Validate stack command
|
|
*/
|
|
val = cmd & STKCMD_VAL_MASK;
|
|
if (((u_int)cmd < (u_int)SSCOP_CMD_MIN) ||
|
|
((u_int)cmd > (u_int)SSCOP_CMD_MAX) ||
|
|
((stab = (sop->so_vers == SSCOP_VERS_QSAAL ?
|
|
sscop_qsaal_aatab[val] :
|
|
sscop_q2110_aatab[val])) == NULL)) {
|
|
log(LOG_ERR, "sscop_lower: unknown cmd 0x%x, sop=%p\n",
|
|
cmd, sop);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Validate sscop state
|
|
*/
|
|
if (sop->so_state > SOS_MAXSTATE) {
|
|
log(LOG_ERR, "sscop_lower: invalid state sop=%p, state=%d\n",
|
|
sop, sop->so_state);
|
|
/*
|
|
* Release possible buffer
|
|
*/
|
|
if (sscop_buf1[val]) {
|
|
if (arg1)
|
|
KB_FREEALL((KBuffer *)arg1);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Validate command/state combination
|
|
*/
|
|
func = stab[sop->so_state];
|
|
if (func == NULL) {
|
|
log(LOG_ERR,
|
|
"sscop_lower: invalid cmd/state: sop=%p, cmd=0x%x, state=%d\n",
|
|
sop, cmd, sop->so_state);
|
|
/*
|
|
* Release possible buffer
|
|
*/
|
|
if (sscop_buf1[val]) {
|
|
if (arg1)
|
|
KB_FREEALL((KBuffer *)arg1);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Call event processing function
|
|
*/
|
|
(*func)(sop, arg1, arg2);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* No-op Processor (no buffers)
|
|
*
|
|
* Arguments:
|
|
* sop pointer to sscop connection block
|
|
* arg1 command-specific argument
|
|
* arg2 command-specific argument
|
|
*
|
|
* Returns:
|
|
* none
|
|
*
|
|
*/
|
|
void
|
|
sscop_aa_noop_0(sop, arg1, arg2)
|
|
struct sscop *sop;
|
|
int arg1;
|
|
int arg2;
|
|
{
|
|
/*
|
|
* Nothing to do
|
|
*/
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* No-op Processor (arg1 == buffer)
|
|
*
|
|
* Arguments:
|
|
* sop pointer to sscop connection block
|
|
* arg1 command-specific argument (buffer pointer)
|
|
* arg2 command-specific argument
|
|
*
|
|
* Returns:
|
|
* none
|
|
*
|
|
*/
|
|
void
|
|
sscop_aa_noop_1(sop, arg1, arg2)
|
|
struct sscop *sop;
|
|
int arg1;
|
|
int arg2;
|
|
{
|
|
|
|
/*
|
|
* Just free buffer chain
|
|
*/
|
|
if (arg1)
|
|
KB_FREEALL((KBuffer *)arg1);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* SSCOP_INIT / SOS_INST Command Processor
|
|
*
|
|
* Arguments:
|
|
* sop pointer to sscop connection block
|
|
* arg1 command specific argument
|
|
* arg2 command specific argument
|
|
*
|
|
* Returns:
|
|
* none
|
|
*
|
|
*/
|
|
void
|
|
sscop_init_inst(sop, arg1, arg2)
|
|
struct sscop *sop;
|
|
int arg1;
|
|
int arg2;
|
|
{
|
|
int err;
|
|
|
|
/*
|
|
* Make ourselves ready and pass on the INIT
|
|
*/
|
|
sop->so_state = SOS_IDLE;
|
|
|
|
/*
|
|
* Validate SSCOP version to use
|
|
*/
|
|
switch ((enum sscop_vers)arg1) {
|
|
case SSCOP_VERS_QSAAL:
|
|
break;
|
|
|
|
case SSCOP_VERS_Q2110:
|
|
break;
|
|
|
|
default:
|
|
sscop_abort(sop, "sscop: bad version\n");
|
|
return;
|
|
}
|
|
sop->so_vers = (enum sscop_vers)arg1;
|
|
|
|
/*
|
|
* Copy SSCOP connection parameters to use
|
|
*/
|
|
sop->so_parm = *(struct sscop_parms *)arg2;
|
|
|
|
/*
|
|
* Initialize lower layers
|
|
*/
|
|
STACK_CALL(CPCS_INIT, sop->so_lower, sop->so_tokl, sop->so_connvc,
|
|
0, 0, err);
|
|
if (err) {
|
|
/*
|
|
* Should never happen
|
|
*/
|
|
sscop_abort(sop, "sscop: INIT failure\n");
|
|
return;
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* SSCOP_TERM / SOS_* Command Processor
|
|
*
|
|
* Arguments:
|
|
* sop pointer to sscop connection block
|
|
* arg1 command specific argument
|
|
* arg2 command specific argument
|
|
*
|
|
* Returns:
|
|
* none
|
|
*
|
|
*/
|
|
void
|
|
sscop_term_all(sop, arg1, arg2)
|
|
struct sscop *sop;
|
|
int arg1;
|
|
int arg2;
|
|
{
|
|
int err;
|
|
|
|
/*
|
|
* Set termination state
|
|
*/
|
|
sop->so_state = SOS_TERM;
|
|
|
|
/*
|
|
* Pass the TERM down the stack
|
|
*/
|
|
STACK_CALL(CPCS_TERM, sop->so_lower, sop->so_tokl, sop->so_connvc,
|
|
0, 0, err);
|
|
if (err) {
|
|
/*
|
|
* Should never happen
|
|
*/
|
|
sscop_abort(sop, "sscop: TERM failure\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Unlink and free the connection block
|
|
*/
|
|
UNLINK(sop, struct sscop, sscop_head, so_next);
|
|
atm_free((caddr_t)sop);
|
|
sscop_vccnt--;
|
|
return;
|
|
}
|
|
|