325 lines
6.4 KiB
C
325 lines
6.4 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 3.0/3.1 Signalling Manager
|
|
* ----------------------------------------
|
|
*
|
|
* Protocol processing module.
|
|
*
|
|
*/
|
|
|
|
#include <netatm/kern_include.h>
|
|
|
|
#include <netatm/uni/unisig.h>
|
|
#include <netatm/uni/unisig_var.h>
|
|
#include <netatm/uni/unisig_msg.h>
|
|
#include <netatm/uni/unisig_mbuf.h>
|
|
|
|
#ifndef lint
|
|
__RCSID("@(#) $FreeBSD$");
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Process a UNISIG timeout
|
|
*
|
|
* Called when a previously scheduled protocol instance control block
|
|
* timer expires. This routine passes a timeout event to the UNISIG
|
|
* signalling manager state machine.
|
|
*
|
|
* Called at splnet.
|
|
*
|
|
* Arguments:
|
|
* tip pointer to UNISIG timer control block
|
|
*
|
|
* Returns:
|
|
* none
|
|
*
|
|
*/
|
|
void
|
|
unisig_timer(tip)
|
|
struct atm_time *tip;
|
|
{
|
|
struct unisig *usp;
|
|
|
|
/*
|
|
* Back-off to UNISIG control block
|
|
*/
|
|
usp = (struct unisig *)
|
|
((caddr_t)tip - (int)(&((struct unisig *)0)->us_time));
|
|
|
|
ATM_DEBUG2("unisig_timer: usp=%p,state=%d\n",
|
|
usp, usp->us_state);
|
|
|
|
/*
|
|
* Pass the timeout to the signalling manager state machine
|
|
*/
|
|
(void) unisig_sigmgr_state(usp,
|
|
UNISIG_SIGMGR_TIMEOUT,
|
|
(KBuffer *) 0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Process a UNISIG VCC timeout
|
|
*
|
|
* Called when a previously scheduled UNISIG VCCB timer expires.
|
|
* Processing will based on the current VCC state.
|
|
*
|
|
* Called at splnet.
|
|
*
|
|
* Arguments:
|
|
* tip pointer to vccb timer control block
|
|
*
|
|
* Returns:
|
|
* none
|
|
*
|
|
*/
|
|
void
|
|
unisig_vctimer(tip)
|
|
struct atm_time *tip;
|
|
{
|
|
struct unisig *usp;
|
|
struct unisig_vccb *uvp;
|
|
|
|
/*
|
|
* Get VCCB and UNISIG control block addresses
|
|
*/
|
|
uvp = (struct unisig_vccb *) ((caddr_t)tip -
|
|
(int)(&((struct vccb *)0)->vc_time));
|
|
usp = (struct unisig *)uvp->uv_pif->pif_siginst;
|
|
|
|
ATM_DEBUG3("unisig_vctimer: uvp=%p, sstate=%d, ustate=%d\n",
|
|
uvp, uvp->uv_sstate, uvp->uv_ustate);
|
|
|
|
/*
|
|
* Hand the timeout to the VC finite state machine
|
|
*/
|
|
if (uvp->uv_ustate == VCCU_ABORT) {
|
|
/*
|
|
* If we're aborting, this is an ABORT call
|
|
*/
|
|
(void) unisig_vc_state(usp, uvp, UNI_VC_ABORT_CALL,
|
|
(struct unisig_msg *) 0);
|
|
} else {
|
|
/*
|
|
* If we're not aborting, it's a timeout
|
|
*/
|
|
(void) unisig_vc_state(usp, uvp, UNI_VC_TIMEOUT,
|
|
(struct unisig_msg *) 0);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* UNISIG SAAL Control Handler
|
|
*
|
|
* This is the module which receives data on the UNISIG signalling
|
|
* channel. Processing is based on the indication received from the
|
|
* SSCF and the protocol state.
|
|
*
|
|
* Arguments:
|
|
* cmd command code
|
|
* tok session token (pointer to UNISIG protocol control block)
|
|
* a1 argument 1
|
|
*
|
|
* Returns:
|
|
* none
|
|
*
|
|
*/
|
|
void
|
|
unisig_saal_ctl(cmd, tok, a1)
|
|
int cmd;
|
|
void *tok;
|
|
void *a1;
|
|
{
|
|
struct unisig *usp = tok;
|
|
|
|
ATM_DEBUG4("unisig_upper: usp=%p,state=%d,cmd=%d,a1=0x%lx,\n",
|
|
usp, usp->us_state, cmd, (u_long)a1);
|
|
|
|
/*
|
|
* Process command
|
|
*/
|
|
switch (cmd) {
|
|
|
|
case SSCF_UNI_ESTABLISH_IND:
|
|
(void) unisig_sigmgr_state(usp,
|
|
UNISIG_SIGMGR_SSCF_EST_IND,
|
|
(KBuffer *) 0);
|
|
break;
|
|
|
|
case SSCF_UNI_ESTABLISH_CNF:
|
|
(void) unisig_sigmgr_state(usp,
|
|
UNISIG_SIGMGR_SSCF_EST_CNF,
|
|
(KBuffer *) 0);
|
|
break;
|
|
|
|
case SSCF_UNI_RELEASE_IND:
|
|
(void) unisig_sigmgr_state(usp,
|
|
UNISIG_SIGMGR_SSCF_RLS_IND,
|
|
(KBuffer *) 0);
|
|
break;
|
|
|
|
case SSCF_UNI_RELEASE_CNF:
|
|
(void) unisig_sigmgr_state(usp,
|
|
UNISIG_SIGMGR_SSCF_RLS_CNF,
|
|
(KBuffer *) 0);
|
|
break;
|
|
|
|
default:
|
|
log(LOG_ERR,
|
|
"unisig: unknown SAAL cmd: usp=%p, state=%d, cmd=%d\n",
|
|
usp, usp->us_state, cmd);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* UNISIG SAAL Data Handler
|
|
*
|
|
* This is the module which receives data on the UNISIG signalling
|
|
* channel. Processing is based on the protocol state.
|
|
*
|
|
* Arguments:
|
|
* tok session token (pointer to UNISIG protocol control block)
|
|
* m pointer to data
|
|
*
|
|
* Returns:
|
|
* none
|
|
*
|
|
*/
|
|
void
|
|
unisig_saal_data(tok, m)
|
|
void *tok;
|
|
KBuffer *m;
|
|
{
|
|
struct unisig *usp = tok;
|
|
|
|
ATM_DEBUG3("unisig_saal_data: usp=%p,state=%d,m=%p,\n",
|
|
usp, usp->us_state, m);
|
|
|
|
/*
|
|
* Pass data to signalling manager state machine
|
|
*/
|
|
(void) unisig_sigmgr_state(usp,
|
|
UNISIG_SIGMGR_SSCF_DATA_IND,
|
|
m);
|
|
}
|
|
|
|
|
|
/*
|
|
* Get Connection's Application/Owner Name
|
|
*
|
|
* Arguments:
|
|
* tok UNI signalling connection token (pointer to protocol instance)
|
|
*
|
|
* Returns:
|
|
* addr pointer to string containing our name
|
|
*
|
|
*/
|
|
caddr_t
|
|
unisig_getname(tok)
|
|
void *tok;
|
|
{
|
|
struct unisig *usp = tok;
|
|
|
|
if (usp->us_proto == ATM_SIG_UNI30)
|
|
return ("UNI3.0");
|
|
else if (usp->us_proto == ATM_SIG_UNI31)
|
|
return ("UNI3.1");
|
|
else if (usp->us_proto == ATM_SIG_UNI40)
|
|
return ("UNI4.0");
|
|
else
|
|
return ("UNI");
|
|
}
|
|
|
|
|
|
/*
|
|
* Process a VCC connection notification
|
|
*
|
|
* Should never be called.
|
|
*
|
|
* Arguments:
|
|
* tok user's connection token (unisig protocol block)
|
|
*
|
|
* Returns:
|
|
* none
|
|
*
|
|
*/
|
|
void
|
|
unisig_connected(tok)
|
|
void *tok;
|
|
{
|
|
struct unisig *usp = tok;
|
|
|
|
ATM_DEBUG2("unisig_connected: usp=%p,state=%d\n",
|
|
usp, usp->us_state);
|
|
|
|
/*
|
|
* Connected routine shouldn't ever get called for a PVC
|
|
*/
|
|
log(LOG_ERR, "unisig: connected notification, usp=%p\n",
|
|
usp);
|
|
}
|
|
|
|
|
|
/*
|
|
* Process a VCC closed notification
|
|
*
|
|
* Called when UNISIG signalling channel is closed.
|
|
*
|
|
* Arguments:
|
|
* tok user's connection token (unisig protocol block)
|
|
* cp pointer to cause structure
|
|
*
|
|
* Returns:
|
|
* none
|
|
*
|
|
*/
|
|
void
|
|
unisig_cleared(tok, cp)
|
|
void *tok;
|
|
struct t_atm_cause *cp;
|
|
{
|
|
struct unisig *usp = tok;
|
|
|
|
ATM_DEBUG3("unisig_cleared: usp=%p, state=%d, cause=%d\n",
|
|
usp, usp->us_state, cp->cause_value);
|
|
|
|
/*
|
|
* VCC has been closed. Notify the signalling
|
|
* manager state machine.
|
|
*/
|
|
(void) unisig_sigmgr_state(usp,
|
|
UNISIG_SIGMGR_CALL_CLEARED,
|
|
(KBuffer *) 0);
|
|
}
|