449 lines
7.9 KiB
C
449 lines
7.9 KiB
C
/*
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*
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* ===================================
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* HARP | Host ATM Research Platform
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* ===================================
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*
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*
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* This Host ATM Research Platform ("HARP") file (the "Software") is
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* made available by Network Computing Services, Inc. ("NetworkCS")
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* "AS IS". NetworkCS does not provide maintenance, improvements or
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* support of any kind.
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*
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* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
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* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
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* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
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* In no event shall NetworkCS be responsible for any damages, including
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* but not limited to consequential damages, arising from or relating to
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* any use of the Software or related support.
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*
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* Copyright 1994-1998 Network Computing Services, Inc.
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*
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* Copies of this Software may be made, however, the above copyright
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* notice must be reproduced on all copies.
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*
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* @(#) $FreeBSD$
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*
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*/
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/*
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* ATM Forum UNI Support
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* ---------------------
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*
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* Loadable kernel module support
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*
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*/
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#ifndef ATM_UNI_MODULE
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#include "opt_atm.h"
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#endif
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#include <netatm/kern_include.h>
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#ifndef lint
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__RCSID("@(#) $FreeBSD$");
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#endif
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/*
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* External functions
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*/
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int sscop_start __P((void));
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int sscop_stop __P((void));
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int sscf_uni_start __P((void));
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int sscf_uni_stop __P((void));
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int uniip_start __P((void));
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int uniip_stop __P((void));
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int unisig_start __P((void));
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int unisig_stop __P((void));
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/*
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* Local functions
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*/
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static int uni_start __P((void));
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static int uni_stop __P((void));
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/*
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* Initialize uni processing
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*
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* This will be called during module loading. We just notify all of our
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* sub-services to initialize.
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*
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* Arguments:
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* none
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*
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* Returns:
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* 0 startup was successful
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* errno startup failed - reason indicated
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*
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*/
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static int
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uni_start()
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{
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int err;
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/*
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* Verify software version
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*/
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if (atm_version != ATM_VERSION) {
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log(LOG_ERR, "version mismatch: uni=%d.%d kernel=%d.%d\n",
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ATM_VERS_MAJ(ATM_VERSION), ATM_VERS_MIN(ATM_VERSION),
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ATM_VERS_MAJ(atm_version), ATM_VERS_MIN(atm_version));
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return (EINVAL);
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}
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/*
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* Initialize uni sub-services
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*/
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err = sscop_start();
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if (err)
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goto done;
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err = sscf_uni_start();
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if (err)
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goto done;
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err = unisig_start();
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if (err)
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goto done;
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err = uniip_start();
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if (err)
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goto done;
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done:
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return (err);
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}
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/*
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* Halt uni processing
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*
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* This will be called just prior to unloading the module from
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* memory. All sub-services will be notified of the termination.
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*
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* Arguments:
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* none
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*
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* Returns:
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* 0 shutdown was successful
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* errno shutdown failed - reason indicated
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*
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*/
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static int
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uni_stop()
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{
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int err, s = splnet();
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/*
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* Terminate uni sub-services
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*/
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err = uniip_stop();
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if (err)
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goto done;
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err = unisig_stop();
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if (err)
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goto done;
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err = sscf_uni_stop();
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if (err)
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goto done;
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err = sscop_stop();
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if (err)
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goto done;
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done:
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(void) splx(s);
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return (err);
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}
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#ifdef ATM_UNI_MODULE
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/*
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*******************************************************************
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*
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* Loadable Module Support
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*
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*******************************************************************
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*/
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static int uni_doload __P((void));
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static int uni_dounload __P((void));
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/*
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* Generic module load processing
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*
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* This function is called by an OS-specific function when this
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* module is being loaded.
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*
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* Arguments:
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* none
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*
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* Returns:
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* 0 load was successful
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* errno load failed - reason indicated
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*
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*/
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static int
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uni_doload()
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{
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int err = 0;
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/*
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* Start us up
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*/
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err = uni_start();
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if (err)
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/* Problems, clean up */
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(void)uni_stop();
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return (err);
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}
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/*
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* Generic module unload processing
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*
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* This function is called by an OS-specific function when this
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* module is being unloaded.
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*
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* Arguments:
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* none
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*
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* Returns:
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* 0 unload was successful
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* errno unload failed - reason indicated
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*
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*/
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static int
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uni_dounload()
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{
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int err = 0;
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/*
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* OK, try to clean up our mess
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*/
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err = uni_stop();
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return (err);
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}
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#ifdef sun
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/*
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* Loadable driver description
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*/
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struct vdldrv uni_drv = {
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VDMAGIC_PSEUDO, /* Pseudo Driver */
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"uni_mod", /* name */
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NULL, /* dev_ops */
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NULL, /* bdevsw */
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NULL, /* cdevsw */
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0, /* blockmajor */
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0 /* charmajor */
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};
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/*
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* Loadable module support entry point
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*
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* This is the routine called by the vd driver for all loadable module
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* functions for this pseudo driver. This routine name must be specified
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* on the modload(1) command. This routine will be called whenever the
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* modload(1), modunload(1) or modstat(1) commands are issued for this
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* module.
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*
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* Arguments:
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* cmd vd command code
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* vdp pointer to vd driver's structure
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* vdi pointer to command-specific vdioctl_* structure
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* vds pointer to status structure (VDSTAT only)
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*
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* Returns:
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* 0 command was successful
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* errno command failed - reason indicated
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*
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*/
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int
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uni_mod(cmd, vdp, vdi, vds)
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int cmd;
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struct vddrv *vdp;
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caddr_t vdi;
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struct vdstat *vds;
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{
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int err = 0;
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switch (cmd) {
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case VDLOAD:
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/*
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* Module Load
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*
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* We dont support any user configuration
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*/
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err = uni_doload();
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if (err == 0)
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/* Let vd driver know about us */
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vdp->vdd_vdtab = (struct vdlinkage *)&uni_drv;
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break;
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case VDUNLOAD:
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/*
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* Module Unload
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*/
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err = uni_dounload();
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break;
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case VDSTAT:
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/*
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* Module Status
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*/
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/* Not much to say at the moment */
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break;
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default:
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log(LOG_ERR, "uni_mod: Unknown vd command 0x%x\n", cmd);
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err = EINVAL;
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}
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return (err);
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}
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#endif /* sun */
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#ifdef __FreeBSD__
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#include <sys/exec.h>
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#include <sys/sysent.h>
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#include <sys/lkm.h>
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/*
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* Loadable miscellaneous module description
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*/
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MOD_MISC(uni);
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/*
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* Loadable module support "load" entry point
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*
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* This is the routine called by the lkm driver whenever the
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* modload(1) command is issued for this module.
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*
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* Arguments:
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* lkmtp pointer to lkm drivers's structure
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* cmd lkm command code
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*
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* Returns:
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* 0 command was successful
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* errno command failed - reason indicated
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*
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*/
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static int
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uni_load(lkmtp, cmd)
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struct lkm_table *lkmtp;
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int cmd;
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{
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return(uni_doload());
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}
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/*
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* Loadable module support "unload" entry point
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*
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* This is the routine called by the lkm driver whenever the
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* modunload(1) command is issued for this module.
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*
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* Arguments:
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* lkmtp pointer to lkm drivers's structure
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* cmd lkm command code
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*
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* Returns:
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* 0 command was successful
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* errno command failed - reason indicated
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*
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*/
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static int
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uni_unload(lkmtp, cmd)
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struct lkm_table *lkmtp;
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int cmd;
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{
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return(uni_dounload());
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}
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/*
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* Loadable module support entry point
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*
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* This is the routine called by the lkm driver for all loadable module
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* functions for this driver. This routine name must be specified
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* on the modload(1) command. This routine will be called whenever the
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* modload(1), modunload(1) or modstat(1) commands are issued for this
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* module.
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*
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* Arguments:
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* lkmtp pointer to lkm drivers's structure
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* cmd lkm command code
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* ver lkm version
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*
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* Returns:
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* 0 command was successful
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* errno command failed - reason indicated
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*
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*/
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int
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uni_mod(lkmtp, cmd, ver)
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struct lkm_table *lkmtp;
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int cmd;
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int ver;
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{
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MOD_DISPATCH(uni, lkmtp, cmd, ver,
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uni_load, uni_unload, lkm_nullcmd);
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}
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#endif /* __FreeBSD__ */
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#else /* !ATM_UNI_MODULE */
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/*
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*******************************************************************
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*
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* Kernel Compiled Module Support
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*
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*******************************************************************
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*/
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static void uni_doload __P((void *));
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SYSINIT(atmuni, SI_SUB_PROTO_END, SI_ORDER_ANY, uni_doload, NULL)
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/*
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* Kernel initialization
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*
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* Arguments:
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* arg Not used
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*
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* Returns:
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* none
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*
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*/
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static void
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uni_doload(void *arg)
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{
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int err = 0;
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/*
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* Start us up
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*/
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err = uni_start();
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if (err) {
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/* Problems, clean up */
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(void)uni_stop();
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log(LOG_ERR, "ATM UNI unable to initialize (%d)!!\n", err);
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}
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return;
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}
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#endif /* ATM_UNI_MODULE */
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