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freebsd-dev/sys/netatm/uni/unisig_if.c
Andrew R. Reiter 2575dfa6d9 - Change KM_ macro calls to the appropriate function call. 
- Nuke KM_ macros from port.h

  This is a leadin step towards cleaning up this code as I wait for some
  ATM cards and a ATM switch to arrive.
2002-04-19 17:45:22 +00:00

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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.
*
* @(#) $FreeBSD$
*
*/
/*
* 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>
#ifndef lint
__RCSID("@(#) $FreeBSD$");
#endif
/*
* Global variables
*/
struct sp_info unisig_vcpool = {
"unisig vcc pool", /* si_name */
sizeof(struct unisig_vccb), /* si_blksiz */
10, /* si_blkcnt */
50 /* si_maxallow */
};
struct sp_info unisig_msgpool = {
"unisig message pool", /* si_name */
sizeof(struct unisig_msg), /* si_blksiz */
10, /* si_blkcnt */
50 /* si_maxallow */
};
struct sp_info unisig_iepool = {
"unisig ie pool", /* si_name */
sizeof(struct ie_generic), /* si_blksiz */
10, /* si_blkcnt */
50 /* si_maxallow */
};
/*
* 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);
}
/*
* 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
*/
atm_release_pool(&unisig_vcpool);
atm_release_pool(&unisig_msgpool);
atm_release_pool(&unisig_iepool);
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;
atm_free((caddr_t)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);
}
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