1471410889
be a few bits left to clean from the HARP code in terms of what is using the storage pools; once that's done, the memory management code can be removed entirely. This commit effectively changes the use of dynamic memory routines from atm_allocate, atm_free, atm_release_pool to uma_zcreate, uma_zalloc, uma_zfree, uma_zdestroy.
1037 lines
22 KiB
C
1037 lines
22 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
|
|
* ----------------------------------------
|
|
*
|
|
* System interface module
|
|
*
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/types.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/time.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/syslog.h>
|
|
#include <net/if.h>
|
|
#include <netinet/in.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_vc.h>
|
|
#include <netatm/atm_ioctl.h>
|
|
#include <netatm/atm_sigmgr.h>
|
|
#include <netatm/atm_stack.h>
|
|
#include <netatm/atm_pcb.h>
|
|
#include <netatm/atm_var.h>
|
|
|
|
#include <netatm/ipatm/ipatm_var.h>
|
|
#include <netatm/ipatm/ipatm_serv.h>
|
|
#include <netatm/uni/uniip_var.h>
|
|
|
|
#include <netatm/uni/unisig.h>
|
|
#include <netatm/uni/unisig_var.h>
|
|
#include <netatm/uni/unisig_msg.h>
|
|
|
|
#include <vm/uma.h>
|
|
|
|
#ifndef lint
|
|
__RCSID("@(#) $FreeBSD$");
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Global variables
|
|
*/
|
|
uma_zone_t unisig_vc_zone;
|
|
uma_zone_t unisig_msg_zone;
|
|
uma_zone_t unisig_ie_zone;
|
|
|
|
/*
|
|
* Local functions
|
|
*/
|
|
static int unisig_attach(struct sigmgr *, struct atm_pif *);
|
|
static int unisig_detach(struct atm_pif *);
|
|
static int unisig_setup(Atm_connvc *, int *);
|
|
static int unisig_release(struct vccb *, int *);
|
|
static int unisig_accept(struct vccb *, int *);
|
|
static int unisig_reject(struct vccb *, int *);
|
|
static int unisig_abort(struct vccb *);
|
|
static int unisig_ioctl(int, caddr_t, caddr_t);
|
|
|
|
|
|
/*
|
|
* Local variables
|
|
*/
|
|
static struct sigmgr unisig_mgr30 = {
|
|
NULL,
|
|
ATM_SIG_UNI30,
|
|
NULL,
|
|
unisig_attach,
|
|
unisig_detach,
|
|
unisig_setup,
|
|
unisig_accept,
|
|
unisig_reject,
|
|
unisig_release,
|
|
unisig_free,
|
|
unisig_ioctl
|
|
};
|
|
|
|
static struct sigmgr unisig_mgr31 = {
|
|
NULL,
|
|
ATM_SIG_UNI31,
|
|
NULL,
|
|
unisig_attach,
|
|
unisig_detach,
|
|
unisig_setup,
|
|
unisig_accept,
|
|
unisig_reject,
|
|
unisig_release,
|
|
unisig_free,
|
|
unisig_ioctl
|
|
};
|
|
|
|
|
|
/*
|
|
* Initialize UNISIG processing
|
|
*
|
|
* This will be called during module loading. We'll just register
|
|
* the UNISIG protocol descriptor and wait for a UNISIG ATM interface
|
|
* to come online.
|
|
*
|
|
* Arguments:
|
|
* none
|
|
*
|
|
* Returns:
|
|
* 0 startup was successful
|
|
* errno startup failed - reason indicated
|
|
*
|
|
*/
|
|
int
|
|
unisig_start()
|
|
{
|
|
int err = 0;
|
|
|
|
/*
|
|
* Verify software version
|
|
*/
|
|
if (atm_version != ATM_VERSION) {
|
|
log(LOG_ERR, "version mismatch: unisig=%d.%d kernel=%d.%d\n",
|
|
ATM_VERS_MAJ(ATM_VERSION),
|
|
ATM_VERS_MIN(ATM_VERSION),
|
|
ATM_VERS_MAJ(atm_version),
|
|
ATM_VERS_MIN(atm_version));
|
|
return (EINVAL);
|
|
}
|
|
|
|
/*
|
|
* Atleast ensure the versioning prior to creating our
|
|
* UMA zone.
|
|
*/
|
|
unisig_vc_zone = uma_zcreate("unisig vcc", sizeof(struct unisig_vccb),
|
|
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
|
|
if (unisig_vc_zone == NULL)
|
|
panic("unisig_start: uma_zcreate failed to create vcc zone");
|
|
unisig_msg_zone = uma_zcreate("unisig msg", sizeof(struct unisig_msg),
|
|
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
|
|
if (unisig_msg_zone == NULL)
|
|
panic("unisig_start: uma_zcreate failed to create msg zone");
|
|
unisig_ie_zone = uma_zcreate("unisig ie", sizeof(struct ie_generic),
|
|
NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
|
|
if (unisig_ie_zone == NULL)
|
|
panic("unisig_start: uma_zcreate failed to create ie zone");
|
|
|
|
uma_zone_set_max(unisig_vc_zone, 50);
|
|
uma_zone_set_max(unisig_msg_zone, 50);
|
|
uma_zone_set_max(unisig_ie_zone, 50);
|
|
|
|
/*
|
|
* Register ourselves with system
|
|
*/
|
|
err = atm_sigmgr_register(&unisig_mgr30);
|
|
if (err)
|
|
goto done;
|
|
|
|
err = atm_sigmgr_register(&unisig_mgr31);
|
|
|
|
done:
|
|
return (err);
|
|
}
|
|
|
|
|
|
/*
|
|
* Halt UNISIG processing
|
|
*
|
|
* This should be called just prior to unloading the module from
|
|
* memory. All UNISIG interfaces must be deregistered before the
|
|
* protocol can be shutdown.
|
|
*
|
|
* Arguments:
|
|
* none
|
|
*
|
|
* Returns:
|
|
* 0 startup was successful
|
|
* errno startup failed - reason indicated
|
|
*
|
|
*/
|
|
int
|
|
unisig_stop()
|
|
{
|
|
int err = 0;
|
|
int s = splnet();
|
|
|
|
|
|
/*
|
|
* Any protocol instances still registered?
|
|
*/
|
|
if ((unisig_mgr30.sm_prinst != NULL) ||
|
|
(unisig_mgr31.sm_prinst != NULL)) {
|
|
|
|
/* Yes, can't stop now */
|
|
err = EBUSY;
|
|
goto done;
|
|
}
|
|
|
|
/*
|
|
* De-register from system
|
|
*/
|
|
(void) atm_sigmgr_deregister(&unisig_mgr30);
|
|
(void) atm_sigmgr_deregister(&unisig_mgr31);
|
|
|
|
/*
|
|
* Free up our storage pools
|
|
*/
|
|
uma_zdestroy(unisig_vc_zone);
|
|
uma_zdestroy(unisig_msg_zone);
|
|
uma_zdestroy(unisig_ie_zone);
|
|
done:
|
|
(void)splx(s);
|
|
return (err);
|
|
}
|
|
|
|
|
|
/*
|
|
* Attach a UNISIG-controlled interface
|
|
*
|
|
* Each ATM physical interface must be attached with the signalling
|
|
* manager for the interface's signalling protocol (via the
|
|
* atm_sigmgr_attach function). This function will handle the
|
|
* attachment for UNISIG-controlled interfaces. A new UNISIG protocol
|
|
* instance will be created and then we'll just sit around waiting for
|
|
* status or connection requests.
|
|
*
|
|
* Function must be called at splnet.
|
|
*
|
|
* Arguments:
|
|
* smp pointer to UNISIG signalling manager control block
|
|
* pip pointer to ATM physical interface control block
|
|
*
|
|
* Returns:
|
|
* 0 attach successful
|
|
* errno attach failed - reason indicated
|
|
*
|
|
*/
|
|
static int
|
|
unisig_attach(smp, pip)
|
|
struct sigmgr *smp;
|
|
struct atm_pif *pip;
|
|
{
|
|
int err = 0, s;
|
|
struct unisig *usp = NULL;
|
|
|
|
ATM_DEBUG2("unisig_attach: smp=%p, pip=%p\n", smp, pip);
|
|
|
|
/*
|
|
* Allocate UNISIG protocol instance control block
|
|
*/
|
|
usp = malloc(sizeof(struct unisig), M_DEVBUF, M_NOWAIT | M_ZERO);
|
|
if (usp == NULL) {
|
|
err = ENOMEM;
|
|
goto done;
|
|
}
|
|
/*
|
|
* Set state in UNISIG protocol instance control block
|
|
*/
|
|
usp->us_state = UNISIG_NULL;
|
|
usp->us_proto = smp->sm_proto;
|
|
|
|
/*
|
|
* Set initial call reference allocation value
|
|
*/
|
|
usp->us_cref = 1;
|
|
|
|
/*
|
|
* Link instance into manager's chain
|
|
*/
|
|
LINK2TAIL((struct siginst *)usp, struct siginst, smp->sm_prinst,
|
|
si_next);
|
|
|
|
/*
|
|
* Link in interface
|
|
*/
|
|
usp->us_pif = pip;
|
|
s = splimp();
|
|
pip->pif_sigmgr = smp;
|
|
pip->pif_siginst = (struct siginst *) usp;
|
|
(void) splx(s);
|
|
|
|
/*
|
|
* Clear our ATM address. The address will be set by user
|
|
* command or by registration via ILMI.
|
|
*/
|
|
usp->us_addr.address_format = T_ATM_ABSENT;
|
|
usp->us_addr.address_length = 0;
|
|
usp->us_subaddr.address_format = T_ATM_ABSENT;
|
|
usp->us_subaddr.address_length = 0;
|
|
|
|
/*
|
|
* Set pointer to IP
|
|
*/
|
|
usp->us_ipserv = &uniip_ipserv;
|
|
|
|
/*
|
|
* Kick-start the UNISIG protocol
|
|
*/
|
|
UNISIG_TIMER(usp, 0);
|
|
|
|
/*
|
|
* Log the fact that we've attached
|
|
*/
|
|
log(LOG_INFO, "unisig: attached to interface %s%d\n",
|
|
pip->pif_name, pip->pif_unit);
|
|
|
|
done:
|
|
/*
|
|
* Reset our work if attach fails
|
|
*/
|
|
if (err) {
|
|
if (usp) {
|
|
UNISIG_CANCEL(usp);
|
|
UNLINK((struct siginst *)usp, struct siginst,
|
|
smp->sm_prinst, si_next);
|
|
free(usp, M_DEVBUF);
|
|
}
|
|
s = splimp();
|
|
pip->pif_sigmgr = NULL;
|
|
pip->pif_siginst = NULL;
|
|
(void) splx(s);
|
|
}
|
|
|
|
return (err);
|
|
}
|
|
|
|
|
|
/*
|
|
* Detach a UNISIG-controlled interface
|
|
*
|
|
* Each ATM physical interface may be detached from its signalling
|
|
* manager (via the atm_sigmgr_detach function). This function will
|
|
* handle the detachment for all UNISIG-controlled interfaces. All
|
|
* circuits will be immediately terminated.
|
|
*
|
|
* Function must be called at splnet.
|
|
*
|
|
* Arguments:
|
|
* pip pointer to ATM physical interface control block
|
|
*
|
|
* Returns:
|
|
* 0 detach successful
|
|
* errno detach failed - reason indicated
|
|
*
|
|
*/
|
|
static int
|
|
unisig_detach(pip)
|
|
struct atm_pif *pip;
|
|
{
|
|
struct unisig *usp;
|
|
int err;
|
|
|
|
ATM_DEBUG1("unisig_detach: pip=%p\n", pip);
|
|
|
|
/*
|
|
* Get UNISIG protocol instance
|
|
*/
|
|
usp = (struct unisig *)pip->pif_siginst;
|
|
|
|
/*
|
|
* Return an error if we're already detaching
|
|
*/
|
|
if (usp->us_state == UNISIG_DETACH) {
|
|
return(EALREADY);
|
|
}
|
|
|
|
/*
|
|
* Pass the detach event to the signalling manager
|
|
* state machine
|
|
*/
|
|
err = unisig_sigmgr_state(usp, UNISIG_SIGMGR_DETACH,
|
|
(KBuffer *)0);
|
|
|
|
/*
|
|
* Log the fact that we've detached
|
|
*/
|
|
if (!err)
|
|
log(LOG_INFO, "unisig: detached from interface %s%d\n",
|
|
pip->pif_name, pip->pif_unit);
|
|
|
|
return (0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Open a UNISIG ATM Connection
|
|
*
|
|
* All service user requests to open a VC connection (via
|
|
* atm_open_connection) over an ATM interface attached to the UNISIG
|
|
* signalling manager are handled here.
|
|
*
|
|
* Function will be called at splnet.
|
|
*
|
|
* Arguments:
|
|
* cvp pointer to user's requested connection parameters
|
|
* errp pointer to an int for extended error information
|
|
*
|
|
* Returns:
|
|
* CALL_PROCEEDING connection establishment is in progress
|
|
* CALL_FAILED connection establishment failed
|
|
* CALL_CONNECTED connection has been successfully established
|
|
*
|
|
*/
|
|
static int
|
|
unisig_setup(cvp, errp)
|
|
Atm_connvc *cvp;
|
|
int *errp;
|
|
{
|
|
struct atm_pif *pip = cvp->cvc_attr.nif->nif_pif;
|
|
struct unisig *usp = (struct unisig *)pip->pif_siginst;
|
|
int rc = 0;
|
|
|
|
ATM_DEBUG1("unisig_setup: cvp=%p\n", cvp);
|
|
|
|
/*
|
|
* Intialize the returned error code
|
|
*/
|
|
*errp = 0;
|
|
|
|
/*
|
|
* Open the connection
|
|
*/
|
|
switch (cvp->cvc_attr.called.addr.address_format) {
|
|
case T_ATM_PVC_ADDR:
|
|
/*
|
|
* Create a PVC
|
|
*/
|
|
*errp = unisig_open_vcc(usp, cvp);
|
|
rc = (*errp ? CALL_FAILED : CALL_CONNECTED);
|
|
break;
|
|
|
|
case T_ATM_ENDSYS_ADDR:
|
|
case T_ATM_E164_ADDR:
|
|
|
|
/*
|
|
* Create an SVC
|
|
*/
|
|
*errp = unisig_open_vcc(usp, cvp);
|
|
rc = (*errp ? CALL_FAILED : CALL_PROCEEDING);
|
|
break;
|
|
|
|
default:
|
|
*errp = EPROTONOSUPPORT;
|
|
rc = CALL_FAILED;
|
|
}
|
|
|
|
return (rc);
|
|
}
|
|
|
|
|
|
/*
|
|
* Close a UNISIG ATM Connection
|
|
*
|
|
* All service user requests to terminate a previously open VC
|
|
* connection (via the atm_close_connection function), which is running
|
|
* over an interface attached to the UNISIG signalling manager, are
|
|
* handled here.
|
|
*
|
|
* Function will be called at splnet.
|
|
*
|
|
* Arguments:
|
|
* vcp pointer to connection's VC control block
|
|
* errp pointer to an int for extended error information
|
|
*
|
|
* Returns:
|
|
* CALL_PROCEEDING connection termination is in progress
|
|
* CALL_FAILED connection termination failed
|
|
* CALL_CLEARED connection has been successfully terminated
|
|
*
|
|
*/
|
|
static int
|
|
unisig_release(vcp, errp)
|
|
struct vccb *vcp;
|
|
int *errp;
|
|
{
|
|
int rc = 0;
|
|
struct atm_pif *pip = vcp->vc_pif;
|
|
struct unisig *usp = (struct unisig *)pip->pif_siginst;
|
|
|
|
ATM_DEBUG1("unisig_release: vcp=%p\n", vcp);
|
|
|
|
/*
|
|
* Initialize returned error code
|
|
*/
|
|
*errp = 0;
|
|
|
|
/*
|
|
* Validate the connection type (PVC or SVC)
|
|
*/
|
|
if (!(vcp->vc_type & (VCC_PVC | VCC_SVC))) {
|
|
*errp = EPROTONOSUPPORT;
|
|
return(CALL_FAILED);
|
|
}
|
|
|
|
/*
|
|
* Close the VCCB
|
|
*/
|
|
*errp = unisig_close_vcc(usp, (struct unisig_vccb *)vcp);
|
|
|
|
/*
|
|
* Set the return code
|
|
*/
|
|
if (*errp) {
|
|
rc = CALL_FAILED;
|
|
} else if (vcp->vc_sstate == UNI_NULL ||
|
|
vcp->vc_sstate == UNI_FREE) {
|
|
rc = CALL_CLEARED;
|
|
} else {
|
|
rc = CALL_PROCEEDING;
|
|
}
|
|
|
|
return (rc);
|
|
}
|
|
|
|
|
|
/*
|
|
* Accept a UNISIG Open from a remote host
|
|
*
|
|
* A user calls this routine (via the atm_accept_call function)
|
|
* after it is notified that an open request was received for it.
|
|
*
|
|
* Function will be called at splnet.
|
|
*
|
|
* Arguments:
|
|
* vcp pointer to user's VCCB
|
|
* errp pointer to an int for extended error information
|
|
*
|
|
* Returns:
|
|
* CALL_PROCEEDING connection establishment is in progress
|
|
* CALL_FAILED connection establishment failed
|
|
* CALL_CONNECTED connection has been successfully established
|
|
*
|
|
*/
|
|
static int
|
|
unisig_accept(vcp, errp)
|
|
struct vccb *vcp;
|
|
int *errp;
|
|
{
|
|
struct unisig_vccb *uvp = (struct unisig_vccb *)vcp;
|
|
struct atm_pif *pip = uvp->uv_pif;
|
|
struct unisig *usp = (struct unisig *)pip->pif_siginst;
|
|
|
|
ATM_DEBUG1("unisig_accept: vcp=%p\n", vcp);
|
|
|
|
/*
|
|
* Initialize the returned error code
|
|
*/
|
|
*errp = 0;
|
|
|
|
/*
|
|
* Return an error if we're detaching
|
|
*/
|
|
if (usp->us_state == UNISIG_DETACH) {
|
|
*errp = ENETDOWN;
|
|
goto free;
|
|
}
|
|
|
|
/*
|
|
* Return an error if we lost the connection
|
|
*/
|
|
if (uvp->uv_sstate == UNI_FREE) {
|
|
*errp = ENETDOWN;
|
|
goto free;
|
|
}
|
|
|
|
/*
|
|
* Pass the acceptance to the VC state machine
|
|
*/
|
|
*errp = unisig_vc_state(usp, uvp, UNI_VC_ACCEPT_CALL,
|
|
(struct unisig_msg *) 0);
|
|
if (*errp)
|
|
goto failed;
|
|
|
|
return(CALL_PROCEEDING);
|
|
|
|
failed:
|
|
/*
|
|
* On error, free the VCCB and return CALL_FAILED
|
|
*/
|
|
|
|
free:
|
|
uvp->uv_sstate = UNI_FREE;
|
|
uvp->uv_ustate = VCCU_CLOSED;
|
|
DEQUEUE(uvp, struct unisig_vccb, uv_sigelem, usp->us_vccq);
|
|
unisig_free((struct vccb *)uvp);
|
|
|
|
return(CALL_FAILED);
|
|
}
|
|
|
|
|
|
/*
|
|
* Reject a UNISIG Open from a remote host
|
|
*
|
|
* A user calls this routine (via the atm_reject_call function)
|
|
* after it is notified that an open request was received for it.
|
|
*
|
|
* Function will be called at splnet.
|
|
*
|
|
* Arguments:
|
|
* uvp pointer to user's VCCB
|
|
* errp pointer to an int for extended error information
|
|
*
|
|
* Returns:
|
|
* CALL_CLEARED call request rejected
|
|
* CALL_FAILED call rejection failed
|
|
*
|
|
*/
|
|
static int
|
|
unisig_reject(vcp, errp)
|
|
struct vccb *vcp;
|
|
int *errp;
|
|
{
|
|
struct unisig_vccb *uvp = (struct unisig_vccb *)vcp;
|
|
struct atm_pif *pip = uvp->uv_pif;
|
|
struct unisig *usp = (struct unisig *)pip->pif_siginst;
|
|
|
|
ATM_DEBUG1("unisig_reject: uvp=%p\n", uvp);
|
|
|
|
/*
|
|
* Initialize the returned error code
|
|
*/
|
|
*errp = 0;
|
|
|
|
|
|
/*
|
|
* Return an error if we're detaching
|
|
*/
|
|
if (usp->us_state == UNISIG_DETACH) {
|
|
*errp = ENETDOWN;
|
|
goto failed;
|
|
}
|
|
|
|
/*
|
|
* Call the VC state machine
|
|
*/
|
|
*errp = unisig_vc_state(usp, uvp, UNI_VC_REJECT_CALL,
|
|
(struct unisig_msg *) 0);
|
|
if (*errp)
|
|
goto failed;
|
|
|
|
return(CALL_CLEARED);
|
|
|
|
failed:
|
|
/*
|
|
* On error, free the VCCB and return CALL_FAILED
|
|
*/
|
|
uvp->uv_sstate = UNI_FREE;
|
|
uvp->uv_ustate = VCCU_CLOSED;
|
|
DEQUEUE(uvp, struct unisig_vccb, uv_sigelem, usp->us_vccq);
|
|
(void) unisig_free((struct vccb *)uvp);
|
|
return(CALL_FAILED);
|
|
}
|
|
|
|
|
|
/*
|
|
* Abort a UNISIG ATM Connection
|
|
*
|
|
* All (non-user) requests to abort a previously open VC connection (via
|
|
* the atm_abort_connection function), which is running over an
|
|
* interface attached to the UNISIG signalling manager, are handled here.
|
|
* The VCC owner will be notified of the request, in order to initiate
|
|
* termination of the connection.
|
|
*
|
|
* Function will be called at splnet.
|
|
*
|
|
* Arguments:
|
|
* vcp pointer to connection's VC control block
|
|
*
|
|
* Returns:
|
|
* 0 connection release was successful
|
|
* errno connection release failed - reason indicated
|
|
*
|
|
*/
|
|
static int
|
|
unisig_abort(vcp)
|
|
struct vccb *vcp;
|
|
{
|
|
|
|
ATM_DEBUG1("unisig_abort: vcp=%p\n", vcp);
|
|
|
|
/*
|
|
* Only abort once
|
|
*/
|
|
if (vcp->vc_ustate == VCCU_ABORT) {
|
|
return (EALREADY);
|
|
}
|
|
|
|
/*
|
|
* Cancel any timer that might be running
|
|
*/
|
|
UNISIG_VC_CANCEL(vcp);
|
|
|
|
/*
|
|
* Set immediate timer to schedule connection termination
|
|
*/
|
|
vcp->vc_ustate = VCCU_ABORT;
|
|
UNISIG_VC_TIMER(vcp, 0);
|
|
|
|
return (0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Free UNISIG ATM connection resources
|
|
*
|
|
* All service user requests to free the resources of a closed VCC
|
|
* connection (via the atm_free_connection function), which is running
|
|
* over an interface attached to the UNISIG signalling manager, are
|
|
*handled here.
|
|
*
|
|
* Function will be called at splnet.
|
|
*
|
|
* Arguments:
|
|
* vcp pointer to connection's VC control block
|
|
*
|
|
* Returns:
|
|
* 0 connection free was successful
|
|
* errno connection free failed - reason indicated
|
|
*
|
|
*/
|
|
int
|
|
unisig_free(vcp)
|
|
struct vccb *vcp;
|
|
{
|
|
struct atm_pif *pip = vcp->vc_pif;
|
|
struct unisig *usp = (struct unisig *)pip->pif_siginst;
|
|
|
|
ATM_DEBUG1("unisig_free: vcp = %p\n", vcp);
|
|
|
|
/*
|
|
* Make sure VCC has been closed
|
|
*/
|
|
if ((vcp->vc_ustate != VCCU_CLOSED &&
|
|
vcp->vc_ustate != VCCU_ABORT) ||
|
|
vcp->vc_sstate != UNI_FREE) {
|
|
ATM_DEBUG2("unisig_free: bad state, sstate=%d, ustate=%d\n",
|
|
vcp->vc_sstate, vcp->vc_ustate);
|
|
return(EEXIST);
|
|
}
|
|
|
|
/*
|
|
* Remove VCCB from protocol queue
|
|
*/
|
|
DEQUEUE(vcp, struct vccb, vc_sigelem, usp->us_vccq);
|
|
|
|
/*
|
|
* Free VCCB storage
|
|
*/
|
|
vcp->vc_ustate = VCCU_NULL;
|
|
vcp->vc_sstate = UNI_NULL;
|
|
uma_zfree(unisig_vc_zone, vcp);
|
|
|
|
/*
|
|
* If we're detaching and this was the last VCC queued,
|
|
* get rid of the protocol instance
|
|
*/
|
|
if ((usp->us_state == UNISIG_DETACH) &&
|
|
(Q_HEAD(usp->us_vccq, struct vccb) == NULL)) {
|
|
struct sigmgr *smp = pip->pif_sigmgr;
|
|
int s = splimp();
|
|
|
|
pip->pif_sigmgr = NULL;
|
|
pip->pif_siginst = NULL;
|
|
(void) splx(s);
|
|
|
|
UNLINK((struct siginst *)usp, struct siginst,
|
|
smp->sm_prinst, si_next);
|
|
free(usp, M_DEVBUF);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
|
|
/*
|
|
* UNISIG IOCTL support
|
|
*
|
|
* Function will be called at splnet.
|
|
*
|
|
* Arguments:
|
|
* code PF_ATM sub-operation code
|
|
* data pointer to code specific parameter data area
|
|
* arg1 pointer to code specific argument
|
|
*
|
|
* Returns:
|
|
* 0 request procesed
|
|
* errno error processing request - reason indicated
|
|
*
|
|
*/
|
|
static int
|
|
unisig_ioctl(code, data, arg1)
|
|
int code;
|
|
caddr_t data;
|
|
caddr_t arg1;
|
|
{
|
|
struct atmdelreq *adp;
|
|
struct atminfreq *aip;
|
|
struct atmsetreq *asp;
|
|
struct unisig *usp;
|
|
struct unisig_vccb *uvp;
|
|
struct air_vcc_rsp rsp;
|
|
struct atm_pif *pip;
|
|
Atm_connection *cop;
|
|
u_int vpi, vci;
|
|
int err = 0, buf_len, i;
|
|
caddr_t buf_addr;
|
|
|
|
ATM_DEBUG1("unisig_ioctl: code=%d\n", code);
|
|
|
|
switch (code) {
|
|
|
|
case AIOCS_DEL_PVC:
|
|
case AIOCS_DEL_SVC:
|
|
/*
|
|
* Delete a VCC
|
|
*/
|
|
adp = (struct atmdelreq *)data;
|
|
usp = (struct unisig *)arg1;
|
|
|
|
/*
|
|
* Don't let a user close the UNISIG signalling VC
|
|
*/
|
|
vpi = adp->adr_pvc_vpi;
|
|
vci = adp->adr_pvc_vci;
|
|
if ((vpi == UNISIG_SIG_VPI && vci == UNISIG_SIG_VCI))
|
|
return(EINVAL);
|
|
|
|
/*
|
|
* Find requested VCC
|
|
*/
|
|
for (uvp = Q_HEAD(usp->us_vccq, struct unisig_vccb); uvp;
|
|
uvp = Q_NEXT(uvp, struct unisig_vccb, uv_sigelem)) {
|
|
if ((uvp->uv_vpi == vpi) && (uvp->uv_vci == vci))
|
|
break;
|
|
}
|
|
if (uvp == NULL)
|
|
return (ENOENT);
|
|
|
|
/*
|
|
* Check VCC type
|
|
*/
|
|
switch (code) {
|
|
case AIOCS_DEL_PVC:
|
|
if (!(uvp->uv_type & VCC_PVC)) {
|
|
return(EINVAL);
|
|
}
|
|
break;
|
|
case AIOCS_DEL_SVC:
|
|
if (!(uvp->uv_type & VCC_SVC)) {
|
|
return(EINVAL);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Schedule VCC termination
|
|
*/
|
|
unisig_cause_attr_from_user(&uvp->uv_connvc->cvc_attr,
|
|
T_ATM_CAUSE_UNSPECIFIED_NORMAL);
|
|
err = unisig_abort((struct vccb *)uvp);
|
|
break;
|
|
|
|
case AIOCS_INF_VCC:
|
|
/*
|
|
* Return VCC information
|
|
*/
|
|
aip = (struct atminfreq *)data;
|
|
usp = (struct unisig *)arg1;
|
|
|
|
buf_addr = aip->air_buf_addr;
|
|
buf_len = aip->air_buf_len;
|
|
|
|
/*
|
|
* Loop through the VCC queue
|
|
*/
|
|
for (uvp = Q_HEAD(usp->us_vccq, struct unisig_vccb); uvp;
|
|
uvp = Q_NEXT(uvp, struct unisig_vccb, uv_sigelem)) {
|
|
/*
|
|
* Make sure there's room in the user's buffer
|
|
*/
|
|
if (buf_len < sizeof(rsp)) {
|
|
err = ENOSPC;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Fill out the response struct for the VCC
|
|
*/
|
|
(void) snprintf(rsp.avp_intf,
|
|
sizeof(rsp.avp_intf), "%s%d",
|
|
usp->us_pif->pif_name,
|
|
usp->us_pif->pif_unit);
|
|
rsp.avp_vpi = uvp->uv_vpi;
|
|
rsp.avp_vci = uvp->uv_vci;
|
|
rsp.avp_type = uvp->uv_type;
|
|
rsp.avp_aal = uvp->uv_connvc->cvc_attr.aal.type;
|
|
rsp.avp_sig_proto = uvp->uv_proto;
|
|
cop = uvp->uv_connvc->cvc_conn;
|
|
if (cop)
|
|
rsp.avp_encaps = cop->co_mpx;
|
|
else
|
|
rsp.avp_encaps = 0;
|
|
rsp.avp_state = uvp->uv_sstate;
|
|
if (uvp->uv_connvc->cvc_flags & CVCF_CALLER) {
|
|
rsp.avp_daddr = uvp->uv_connvc->cvc_attr.called.addr;
|
|
} else {
|
|
rsp.avp_daddr = uvp->uv_connvc->cvc_attr.calling.addr;
|
|
}
|
|
rsp.avp_dsubaddr.address_format = T_ATM_ABSENT;
|
|
rsp.avp_dsubaddr.address_length = 0;
|
|
rsp.avp_ipdus = uvp->uv_ipdus;
|
|
rsp.avp_opdus = uvp->uv_opdus;
|
|
rsp.avp_ibytes = uvp->uv_ibytes;
|
|
rsp.avp_obytes = uvp->uv_obytes;
|
|
rsp.avp_ierrors = uvp->uv_ierrors;
|
|
rsp.avp_oerrors = uvp->uv_oerrors;
|
|
rsp.avp_tstamp = uvp->uv_tstamp;
|
|
bzero(rsp.avp_owners,
|
|
sizeof(rsp.avp_owners));
|
|
for (i = 0; cop && i < sizeof(rsp.avp_owners);
|
|
cop = cop->co_next,
|
|
i += T_ATM_APP_NAME_LEN+1) {
|
|
strncpy(&rsp.avp_owners[i],
|
|
cop->co_endpt->ep_getname(cop->co_toku),
|
|
T_ATM_APP_NAME_LEN);
|
|
}
|
|
|
|
/*
|
|
* Copy the response into the user's buffer
|
|
*/
|
|
if ((err = copyout((caddr_t)&rsp, buf_addr,
|
|
sizeof(rsp))) != 0)
|
|
break;
|
|
buf_addr += sizeof(rsp);
|
|
buf_len -= sizeof(rsp);
|
|
}
|
|
|
|
/*
|
|
* Update the buffer pointer and length
|
|
*/
|
|
aip->air_buf_addr = buf_addr;
|
|
aip->air_buf_len = buf_len;
|
|
break;
|
|
|
|
case AIOCS_INF_ARP:
|
|
case AIOCS_INF_ASV:
|
|
case AIOCS_SET_ASV:
|
|
/*
|
|
* Get ARP table information or get/set ARP server address
|
|
*/
|
|
err = uniarp_ioctl(code, data, arg1);
|
|
break;
|
|
|
|
case AIOCS_SET_PRF:
|
|
/*
|
|
* Set NSAP prefix
|
|
*/
|
|
asp = (struct atmsetreq *)data;
|
|
usp = (struct unisig *)arg1;
|
|
pip = usp->us_pif;
|
|
if (usp->us_addr.address_format != T_ATM_ABSENT) {
|
|
if (bcmp(asp->asr_prf_pref, usp->us_addr.address,
|
|
sizeof(asp->asr_prf_pref)) != 0)
|
|
err = EALREADY;
|
|
break;
|
|
}
|
|
usp->us_addr.address_format = T_ATM_ENDSYS_ADDR;
|
|
usp->us_addr.address_length = sizeof(Atm_addr_nsap);
|
|
bcopy(&pip->pif_macaddr,
|
|
((Atm_addr_nsap *)usp->us_addr.address)->aan_esi,
|
|
sizeof(pip->pif_macaddr));
|
|
bcopy((caddr_t) asp->asr_prf_pref,
|
|
&((Atm_addr_nsap *)usp->us_addr.address)->aan_afi,
|
|
sizeof(asp->asr_prf_pref));
|
|
log(LOG_INFO, "uni: set address %s on interface %s\n",
|
|
unisig_addr_print(&usp->us_addr),
|
|
asp->asr_prf_intf);
|
|
|
|
/*
|
|
* Pass event to signalling manager state machine
|
|
*/
|
|
err = unisig_sigmgr_state(usp, UNISIG_SIGMGR_ADDR_SET,
|
|
(KBuffer *) NULL);
|
|
|
|
/*
|
|
* Clean up if there was an error
|
|
*/
|
|
if (err) {
|
|
usp->us_addr.address_format = T_ATM_ABSENT;
|
|
usp->us_addr.address_length = 0;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Inform ARP code of new address
|
|
*/
|
|
uniarp_ifaddr((struct siginst *)usp);
|
|
break;
|
|
|
|
default:
|
|
err = EOPNOTSUPP;
|
|
}
|
|
|
|
return (err);
|
|
}
|