* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
* This code is derived from software donated to Berkeley by
* %sccs.include.redist.c%
* @(#)portal_vfsops.c 8.1 (Berkeley) %G%
* $Id: portal_vfsops.c,v 1.5 1992/05/30 10:25:27 jsp Exp jsp $
#include <sys/filedesc.h>
#include <sys/socketvar.h>
#include <miscfs/portal/portal.h>
static u_short portal_mntid
;
printf("portal_init\n"); /* printed during system boot */
* Mount the per-process file descriptors (/dev/fd)
portal_mount(mp
, path
, data
, ndp
, p
)
printf("portal_mount(mp = %x)\n", mp
);
if (mp
->mnt_flag
& MNT_UPDATE
)
if (error
= copyin(data
, (caddr_t
) &args
, sizeof(struct portal_args
)))
if (error
= getsock(p
->p_fd
, args
.pa_socket
, &fp
))
so
= (struct socket
*) fp
->f_data
;
if (so
->so_proto
->pr_domain
->dom_family
!= AF_UNIX
)
return (ESOCKTNOSUPPORT
);
error
= getnewvnode(VT_UFS
, mp
, portal_vnodeop_p
, &rvp
); /* XXX */
MALLOC(rvp
->v_data
, void *, sizeof(struct portalnode
),
fmp
= (struct portalmount
*) malloc(sizeof(struct portalmount
),
M_UFSMNT
, M_WAITOK
); /* XXX */
VTOPORTAL(rvp
)->pt_arg
= 0;
VTOPORTAL(rvp
)->pt_size
= 0;
VTOPORTAL(rvp
)->pt_fileid
= PORTAL_ROOTFILEID
;
printf("portal_mount: root vp = %x\n", rvp
);
fmp
->pm_server
= fp
; fp
->f_count
++;
mp
->mnt_flag
|= MNT_LOCAL
;
mp
->mnt_data
= (qaddr_t
) fmp
;
getnewfsid(mp
, MOUNT_PORTAL
);
(void) copyinstr(path
, mp
->mnt_stat
.f_mntonname
, MNAMELEN
- 1, &size
);
bzero(mp
->mnt_stat
.f_mntonname
+ size
, MNAMELEN
- size
);
(void) copyinstr(args
.pa_config
, mp
->mnt_stat
.f_mntfromname
, MNAMELEN
- 1,
bzero(mp
->mnt_stat
.f_mntfromname
+ size
, MNAMELEN
- size
);
bzero(mp
->mnt_stat
.f_mntfromname
, MNAMELEN
);
bcopy("portal", mp
->mnt_stat
.f_mntfromname
, sizeof("portal"));
printf("portal_mount: config %s at %s\n",
mp
->mnt_stat
.f_mntfromname
, mp
->mnt_stat
.f_mntonname
);
portal_start(mp
, flags
, p
)
portal_unmount(mp
, mntflags
, p
)
struct vnode
*rootvp
= VFSTOPORTAL(mp
)->pm_root
;
printf("portal_unmount(mp = %x)\n", mp
);
if (mntflags
& MNT_FORCE
) {
/* portal can never be rootfs so don't check for it */
* Clear out buffer cache. I don't think we
* ever get anything cached at this level at the
* moment, but who knows...
printf("portal_unmount: calling mntflushbuf\n");
printf("portal_unmount: calling mntinvalbuf\n");
if (rootvp
->v_usecount
> 1)
printf("portal_unmount: calling vflush\n");
if (error
= vflush(mp
, rootvp
, flags
))
vprint("portal root", rootvp
);
* Release reference on underlying root vnode
* And blow it away for future re-use
* Shutdown the socket. This will cause the select in the
* daemon to wake up, and then the accept will get ECONNABORTED
* which it interprets as a request to go and bury itself.
printf("portal_unmount: shutdown socket\n");
soshutdown((struct socket
*) VFSTOPORTAL(mp
)->pm_server
->f_data
, 2);
* Discard reference to underlying file. Must call closef because
* this may be the last reference.
printf("portal_unmount: closef(%x)\n", VFSTOPORTAL(mp
)->pm_server
);
closef(VFSTOPORTAL(mp
)->pm_server
, (struct proc
*) 0);
* Finally, throw away the portalmount structure
free(mp
->mnt_data
, M_UFSMNT
); /* XXX */
printf("portal_root(mp = %x)\n", mp
);
* Return locked reference to root.
vp
= VFSTOPORTAL(mp
)->pm_root
;
portal_quotactl(mp
, cmd
, uid
, arg
, p
)
portal_statfs(mp
, sbp
, p
)
printf("portal_statfs(mp = %x)\n", mp
);
sbp
->f_type
= MOUNT_PORTAL
;
sbp
->f_bsize
= DEV_BSIZE
;
sbp
->f_iosize
= DEV_BSIZE
;
sbp
->f_blocks
= 2; /* 1K to keep df happy */
sbp
->f_files
= 1; /* Allow for "." */
sbp
->f_ffree
= 0; /* See comments above */
if (sbp
!= &mp
->mnt_stat
) {
bcopy(&mp
->mnt_stat
.f_fsid
, &sbp
->f_fsid
, sizeof(sbp
->f_fsid
));
bcopy(mp
->mnt_stat
.f_mntonname
, sbp
->f_mntonname
, MNAMELEN
);
bcopy(mp
->mnt_stat
.f_mntfromname
, sbp
->f_mntfromname
, MNAMELEN
);
portal_vget(mp
, ino
, vpp
)
portal_fhtovp(mp
, fhp
, vpp
)
struct vfsops portal_vfsops
= {