freebsd-nq/sys/netatm/uni/uni_load.c
1999-08-28 01:08:13 +00:00

451 lines
7.9 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
* ---------------------
*
* Loadable kernel module support
*
*/
#ifndef ATM_UNI_MODULE
#include "opt_atm.h"
#endif
#include <netatm/kern_include.h>
#include <netatm/uni/uni.h>
#ifndef lint
__RCSID("@(#) $FreeBSD$");
#endif
/*
* External functions
*/
int sscop_start __P((void));
int sscop_stop __P((void));
int sscf_uni_start __P((void));
int sscf_uni_stop __P((void));
int uniip_start __P((void));
int uniip_stop __P((void));
int unisig_start __P((void));
int unisig_stop __P((void));
/*
* Local functions
*/
static int uni_start __P((void));
static int uni_stop __P((void));
/*
* Initialize uni processing
*
* This will be called during module loading. We just notify all of our
* sub-services to initialize.
*
* Arguments:
* none
*
* Returns:
* 0 startup was successful
* errno startup failed - reason indicated
*
*/
static int
uni_start()
{
int err;
/*
* Verify software version
*/
if (atm_version != ATM_VERSION) {
log(LOG_ERR, "version mismatch: uni=%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);
}
/*
* Initialize uni sub-services
*/
err = sscop_start();
if (err)
goto done;
err = sscf_uni_start();
if (err)
goto done;
err = unisig_start();
if (err)
goto done;
err = uniip_start();
if (err)
goto done;
done:
return (err);
}
/*
* Halt uni processing
*
* This will be called just prior to unloading the module from
* memory. All sub-services will be notified of the termination.
*
* Arguments:
* none
*
* Returns:
* 0 shutdown was successful
* errno shutdown failed - reason indicated
*
*/
static int
uni_stop()
{
int err, s = splnet();
/*
* Terminate uni sub-services
*/
err = uniip_stop();
if (err)
goto done;
err = unisig_stop();
if (err)
goto done;
err = sscf_uni_stop();
if (err)
goto done;
err = sscop_stop();
if (err)
goto done;
done:
(void) splx(s);
return (err);
}
#ifdef ATM_UNI_MODULE
/*
*******************************************************************
*
* Loadable Module Support
*
*******************************************************************
*/
static int uni_doload __P((void));
static int uni_dounload __P((void));
/*
* Generic module load processing
*
* This function is called by an OS-specific function when this
* module is being loaded.
*
* Arguments:
* none
*
* Returns:
* 0 load was successful
* errno load failed - reason indicated
*
*/
static int
uni_doload()
{
int err = 0;
/*
* Start us up
*/
err = uni_start();
if (err)
/* Problems, clean up */
(void)uni_stop();
return (err);
}
/*
* Generic module unload processing
*
* This function is called by an OS-specific function when this
* module is being unloaded.
*
* Arguments:
* none
*
* Returns:
* 0 unload was successful
* errno unload failed - reason indicated
*
*/
static int
uni_dounload()
{
int err = 0;
/*
* OK, try to clean up our mess
*/
err = uni_stop();
return (err);
}
#ifdef sun
/*
* Loadable driver description
*/
struct vdldrv uni_drv = {
VDMAGIC_PSEUDO, /* Pseudo Driver */
"uni_mod", /* name */
NULL, /* dev_ops */
NULL, /* bdevsw */
NULL, /* cdevsw */
0, /* blockmajor */
0 /* charmajor */
};
/*
* Loadable module support entry point
*
* This is the routine called by the vd driver for all loadable module
* functions for this pseudo driver. This routine name must be specified
* on the modload(1) command. This routine will be called whenever the
* modload(1), modunload(1) or modstat(1) commands are issued for this
* module.
*
* Arguments:
* cmd vd command code
* vdp pointer to vd driver's structure
* vdi pointer to command-specific vdioctl_* structure
* vds pointer to status structure (VDSTAT only)
*
* Returns:
* 0 command was successful
* errno command failed - reason indicated
*
*/
int
uni_mod(cmd, vdp, vdi, vds)
int cmd;
struct vddrv *vdp;
caddr_t vdi;
struct vdstat *vds;
{
int err = 0;
switch (cmd) {
case VDLOAD:
/*
* Module Load
*
* We dont support any user configuration
*/
err = uni_doload();
if (err == 0)
/* Let vd driver know about us */
vdp->vdd_vdtab = (struct vdlinkage *)&uni_drv;
break;
case VDUNLOAD:
/*
* Module Unload
*/
err = uni_dounload();
break;
case VDSTAT:
/*
* Module Status
*/
/* Not much to say at the moment */
break;
default:
log(LOG_ERR, "uni_mod: Unknown vd command 0x%x\n", cmd);
err = EINVAL;
}
return (err);
}
#endif /* sun */
#ifdef __FreeBSD__
#include <sys/exec.h>
#include <sys/sysent.h>
#include <sys/lkm.h>
/*
* Loadable miscellaneous module description
*/
MOD_MISC(uni);
/*
* Loadable module support "load" entry point
*
* This is the routine called by the lkm driver whenever the
* modload(1) command is issued for this module.
*
* Arguments:
* lkmtp pointer to lkm drivers's structure
* cmd lkm command code
*
* Returns:
* 0 command was successful
* errno command failed - reason indicated
*
*/
static int
uni_load(lkmtp, cmd)
struct lkm_table *lkmtp;
int cmd;
{
return(uni_doload());
}
/*
* Loadable module support "unload" entry point
*
* This is the routine called by the lkm driver whenever the
* modunload(1) command is issued for this module.
*
* Arguments:
* lkmtp pointer to lkm drivers's structure
* cmd lkm command code
*
* Returns:
* 0 command was successful
* errno command failed - reason indicated
*
*/
static int
uni_unload(lkmtp, cmd)
struct lkm_table *lkmtp;
int cmd;
{
return(uni_dounload());
}
/*
* Loadable module support entry point
*
* This is the routine called by the lkm driver for all loadable module
* functions for this driver. This routine name must be specified
* on the modload(1) command. This routine will be called whenever the
* modload(1), modunload(1) or modstat(1) commands are issued for this
* module.
*
* Arguments:
* lkmtp pointer to lkm drivers's structure
* cmd lkm command code
* ver lkm version
*
* Returns:
* 0 command was successful
* errno command failed - reason indicated
*
*/
int
uni_mod(lkmtp, cmd, ver)
struct lkm_table *lkmtp;
int cmd;
int ver;
{
MOD_DISPATCH(uni, lkmtp, cmd, ver,
uni_load, uni_unload, lkm_nullcmd);
}
#endif /* __FreeBSD__ */
#else /* !ATM_UNI_MODULE */
/*
*******************************************************************
*
* Kernel Compiled Module Support
*
*******************************************************************
*/
static void uni_doload __P((void *));
SYSINIT(atmuni, SI_SUB_PROTO_END, SI_ORDER_ANY, uni_doload, NULL)
/*
* Kernel initialization
*
* Arguments:
* arg Not used
*
* Returns:
* none
*
*/
static void
uni_doload(void *arg)
{
int err = 0;
/*
* Start us up
*/
err = uni_start();
if (err) {
/* Problems, clean up */
(void)uni_stop();
log(LOG_ERR, "ATM UNI unable to initialize (%d)!!\n", err);
}
return;
}
#endif /* ATM_UNI_MODULE */