/*
- * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1982, 1986, 1989, 1993
+ * The Regents of the University of California. All rights reserved.
*
- * %sccs.include.redist.c%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
*
- * @(#)ufs_vnops.c 7.72 (Berkeley) %G%
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)ufs_vnops.c 8.1 (Berkeley) 6/11/93
*/
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/mount.h>
#include <sys/vnode.h>
-#include <sys/specdev.h>
-#include <sys/fifo.h>
#include <sys/malloc.h>
+#include <sys/dirent.h>
+
+#include <vm/vm.h>
+
+#include <miscfs/specfs/specdev.h>
#include <ufs/ufs/lockf.h>
#include <ufs/ufs/quota.h>
#include <ufs/ufs/ufsmount.h>
#include <ufs/ufs/ufs_extern.h>
-int ufs_chmod __P((struct vnode *, int, struct proc *));
-int ufs_chown __P((struct vnode *, u_int, u_int, struct proc *));
-
-enum vtype iftovt_tab[16] = {
- VNON, VFIFO, VCHR, VNON, VDIR, VNON, VBLK, VNON,
- VREG, VNON, VLNK, VNON, VSOCK, VNON, VNON, VBAD,
-};
-int vttoif_tab[9] = {
- 0, IFREG, IFDIR, IFBLK, IFCHR, IFLNK, IFSOCK, IFIFO, IFMT,
-};
+static int ufs_chmod __P((struct vnode *, int, struct ucred *, struct proc *));
+static int ufs_chown
+ __P((struct vnode *, uid_t, gid_t, struct ucred *, struct proc *));
-#ifdef _NOQUAD
-#define SETHIGH(q, h) (q).val[_QUAD_HIGHWORD] = (h)
-#define SETLOW(q, l) (q).val[_QUAD_LOWWORD] = (l)
-#else /* QUAD */
union _qcvt {
quad_t qcvt;
long val[2];
tmp.val[_QUAD_LOWWORD] = (l); \
(q) = tmp.qcvt; \
}
-#endif /* QUAD */
/*
* Create a regular file
*/
int
-ufs_create(dvp, vpp, cnp, vap) /* converted to CN. */
-/* was: ufs_create(ndp, vap, p) */
- struct vnode *dvp;
- struct vnode **vpp;
- struct componentname *cnp;
- struct vattr *vap;
+ufs_create(ap)
+ struct vop_create_args /* {
+ struct vnode *a_dvp;
+ struct vnode **a_vpp;
+ struct componentname *a_cnp;
+ struct vattr *a_vap;
+ } */ *ap;
{
int error;
if (error =
- ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode), dvp, vpp, cnp))
+ ufs_makeinode(MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode),
+ ap->a_dvp, ap->a_vpp, ap->a_cnp))
return (error);
return (0);
}
*/
/* ARGSUSED */
int
-ufs_mknod(dvp, vpp, cnp, vap) /* converted to CN. */
-/* was: ufs_mknod(ndp, vap, cred, p) */
- struct vnode *dvp;
- struct vnode **vpp;
- struct componentname *cnp;
- struct vattr *vap;
+ufs_mknod(ap)
+ struct vop_mknod_args /* {
+ struct vnode *a_dvp;
+ struct vnode **a_vpp;
+ struct componentname *a_cnp;
+ struct vattr *a_vap;
+ } */ *ap;
{
+ register struct vattr *vap = ap->a_vap;
+ register struct vnode **vpp = ap->a_vpp;
register struct inode *ip;
int error;
if (error =
- ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode), dvp, vpp, cnp))
+ ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode),
+ ap->a_dvp, vpp, ap->a_cnp))
return (error);
ip = VTOI(*vpp);
ip->i_flag |= IACC|IUPD|ICHG;
*/
/* ARGSUSED */
int
-ufs_open(vp, mode, cred, p)
- struct vnode *vp;
- int mode;
- struct ucred *cred;
- struct proc *p;
+ufs_open(ap)
+ struct vop_open_args /* {
+ struct vnode *a_vp;
+ int a_mode;
+ struct ucred *a_cred;
+ struct proc *a_p;
+ } */ *ap;
{
+ /*
+ * Files marked append-only must be opened for appending.
+ */
+ if ((VTOI(ap->a_vp)->i_flags & APPEND) &&
+ (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE)
+ return (EPERM);
return (0);
}
*/
/* ARGSUSED */
int
-ufs_close(vp, fflag, cred, p)
- struct vnode *vp;
- int fflag;
- struct ucred *cred;
- struct proc *p;
+ufs_close(ap)
+ struct vop_close_args /* {
+ struct vnode *a_vp;
+ int a_fflag;
+ struct ucred *a_cred;
+ struct proc *a_p;
+ } */ *ap;
{
- register struct inode *ip;
+ register struct vnode *vp = ap->a_vp;
+ register struct inode *ip = VTOI(vp);
- ip = VTOI(vp);
if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))
ITIMES(ip, &time, &time);
return (0);
* super user is granted all permissions.
*/
int
-ufs_access(vp, mode, cred, p)
- struct vnode *vp;
- register int mode;
- struct ucred *cred;
- struct proc *p;
+ufs_access(ap)
+ struct vop_access_args /* {
+ struct vnode *a_vp;
+ int a_mode;
+ struct ucred *a_cred;
+ struct proc *a_p;
+ } */ *ap;
{
+ register struct vnode *vp = ap->a_vp;
register struct inode *ip = VTOI(vp);
+ register struct ucred *cred = ap->a_cred;
+ mode_t mode = ap->a_mode;
register gid_t *gp;
int i, error;
}
}
#endif /* QUOTA */
+ if ((mode & VWRITE) && (ip->i_flags & IMMUTABLE))
+ return (EPERM);
/*
* If you're the super-user, you always get access.
*/
found:
;
}
- if ((ip->i_mode & mode) != 0)
- return (0);
- return (EACCES);
+ return ((ip->i_mode & mode) == mode ? 0 : EACCES);
}
/* ARGSUSED */
int
-ufs_getattr(vp, vap, cred, p)
- struct vnode *vp;
- register struct vattr *vap;
- struct ucred *cred;
- struct proc *p;
+ufs_getattr(ap)
+ struct vop_getattr_args /* {
+ struct vnode *a_vp;
+ struct vattr *a_vap;
+ struct ucred *a_cred;
+ struct proc *a_p;
+ } */ *ap;
{
- register struct inode *ip;
+ register struct vnode *vp = ap->a_vp;
+ register struct inode *ip = VTOI(vp);
+ register struct vattr *vap = ap->a_vap;
- ip = VTOI(vp);
ITIMES(ip, &time, &time);
/*
* Copy from inode table
vap->va_uid = ip->i_uid;
vap->va_gid = ip->i_gid;
vap->va_rdev = (dev_t)ip->i_rdev;
-#ifdef tahoe
- vap->va_size = ip->i_size;
- vap->va_size_rsv = 0;
-#else
- vap->va_qsize = ip->i_din.di_qsize;
-#endif
- vap->va_atime.tv_sec = ip->i_atime;
- vap->va_atime.tv_usec = 0;
- vap->va_mtime.tv_sec = ip->i_mtime;
- vap->va_mtime.tv_usec = 0;
- vap->va_ctime.tv_sec = ip->i_ctime;
- vap->va_ctime.tv_usec = 0;
+ vap->va_size = ip->i_din.di_size;
+ vap->va_atime = ip->i_atime;
+ vap->va_mtime = ip->i_mtime;
+ vap->va_ctime = ip->i_ctime;
vap->va_flags = ip->i_flags;
vap->va_gen = ip->i_gen;
/* this doesn't belong here */
else
vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
vap->va_bytes = dbtob(ip->i_blocks);
-#ifdef _NOQUAD
- vap->va_bytes_rsv = 0;
-#endif
vap->va_type = vp->v_type;
vap->va_filerev = ip->i_modrev;
return (0);
* Set attribute vnode op. called from several syscalls
*/
int
-ufs_setattr(vp, vap, cred, p)
- register struct vnode *vp;
- register struct vattr *vap;
- register struct ucred *cred;
- struct proc *p;
+ufs_setattr(ap)
+ struct vop_setattr_args /* {
+ struct vnode *a_vp;
+ struct vattr *a_vap;
+ struct ucred *a_cred;
+ struct proc *a_p;
+ } */ *ap;
{
- register struct inode *ip;
+ register struct vattr *vap = ap->a_vap;
+ register struct vnode *vp = ap->a_vp;
+ register struct inode *ip = VTOI(vp);
+ register struct ucred *cred = ap->a_cred;
+ register struct proc *p = ap->a_p;
+ struct timeval atimeval, mtimeval;
int error;
/*
((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
return (EINVAL);
}
+ if (vap->va_flags != VNOVAL) {
+ if (cred->cr_uid != ip->i_uid &&
+ (error = suser(cred, &p->p_acflag)))
+ return (error);
+ if (cred->cr_uid == 0) {
+ if ((ip->i_flags & (SF_IMMUTABLE | SF_APPEND)) &&
+ securelevel > 0)
+ return (EPERM);
+ ip->i_flags = vap->va_flags;
+ } else {
+ if (ip->i_flags & (SF_IMMUTABLE | SF_APPEND))
+ return (EPERM);
+ ip->i_flags &= SF_SETTABLE;
+ ip->i_flags |= (vap->va_flags & UF_SETTABLE);
+ }
+ ip->i_flag |= ICHG;
+ if (vap->va_flags & (IMMUTABLE | APPEND))
+ return (0);
+ }
+ if (ip->i_flags & (IMMUTABLE | APPEND))
+ return (EPERM);
/*
* Go through the fields and update iff not VNOVAL.
*/
- if (vap->va_uid != (u_short)VNOVAL || vap->va_gid != (u_short)VNOVAL)
- if (error = ufs_chown(vp, vap->va_uid, vap->va_gid, p))
+ if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL)
+ if (error = ufs_chown(vp, vap->va_uid, vap->va_gid, cred, p))
return (error);
if (vap->va_size != VNOVAL) {
if (vp->v_type == VDIR)
return (EISDIR);
- if (error = VOP_TRUNCATE(vp, vap->va_size, 0)) /* IO_SYNC? */
+ if (error = VOP_TRUNCATE(vp, vap->va_size, 0, cred, p))
return (error);
}
ip = VTOI(vp);
- if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
+ if (vap->va_atime.ts_sec != VNOVAL || vap->va_mtime.ts_sec != VNOVAL) {
if (cred->cr_uid != ip->i_uid &&
- (error = suser(cred, &p->p_acflag)))
+ (error = suser(cred, &p->p_acflag)) &&
+ ((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
+ (error = VOP_ACCESS(vp, VWRITE, cred, p))))
return (error);
- if (vap->va_atime.tv_sec != VNOVAL)
+ if (vap->va_atime.ts_sec != VNOVAL)
ip->i_flag |= IACC;
- if (vap->va_mtime.tv_sec != VNOVAL)
- ip->i_flag |= IUPD;
- ip->i_flag |= ICHG;
- if (error = VOP_UPDATE(vp, &vap->va_atime, &vap->va_mtime, 1))
+ if (vap->va_mtime.ts_sec != VNOVAL)
+ ip->i_flag |= IUPD | ICHG;
+ atimeval.tv_sec = vap->va_atime.ts_sec;
+ atimeval.tv_usec = vap->va_atime.ts_nsec / 1000;
+ mtimeval.tv_sec = vap->va_mtime.ts_sec;
+ mtimeval.tv_usec = vap->va_mtime.ts_nsec / 1000;
+ if (error = VOP_UPDATE(vp, &atimeval, &mtimeval, 1))
return (error);
}
error = 0;
- if (vap->va_mode != (u_short)VNOVAL)
- error = ufs_chmod(vp, (int)vap->va_mode, p);
- if (vap->va_flags != VNOVAL) {
- if (cred->cr_uid != ip->i_uid &&
- (error = suser(cred, &p->p_acflag)))
- return (error);
- if (cred->cr_uid == 0) {
- ip->i_flags = vap->va_flags;
- } else {
- ip->i_flags &= 0xffff0000;
- ip->i_flags |= (vap->va_flags & 0xffff);
- }
- ip->i_flag |= ICHG;
- }
+ if (vap->va_mode != (mode_t)VNOVAL)
+ error = ufs_chmod(vp, (int)vap->va_mode, cred, p);
return (error);
}
* Inode must be locked before calling.
*/
static int
-ufs_chmod(vp, mode, p)
+ufs_chmod(vp, mode, cred, p)
register struct vnode *vp;
register int mode;
+ register struct ucred *cred;
struct proc *p;
{
- register struct ucred *cred = p->p_ucred;
register struct inode *ip = VTOI(vp);
int error;
* inode must be locked prior to call.
*/
static int
-ufs_chown(vp, uid, gid, p)
+ufs_chown(vp, uid, gid, cred, p)
register struct vnode *vp;
- u_int uid;
- u_int gid;
+ uid_t uid;
+ gid_t gid;
+ struct ucred *cred;
struct proc *p;
{
register struct inode *ip = VTOI(vp);
- register struct ucred *cred = p->p_ucred;
uid_t ouid;
gid_t ogid;
int error = 0;
long change;
#endif
- if (uid == (u_short)VNOVAL)
+ if (uid == (uid_t)VNOVAL)
uid = ip->i_uid;
- if (gid == (u_short)VNOVAL)
+ if (gid == (gid_t)VNOVAL)
gid = ip->i_gid;
/*
* If we don't own the file, are trying to change the owner
/* ARGSUSED */
int
-ufs_ioctl(vp, com, data, fflag, cred, p)
- struct vnode *vp;
- int com;
- caddr_t data;
- int fflag;
- struct ucred *cred;
- struct proc *p;
+ufs_ioctl(ap)
+ struct vop_ioctl_args /* {
+ struct vnode *a_vp;
+ int a_command;
+ caddr_t a_data;
+ int a_fflag;
+ struct ucred *a_cred;
+ struct proc *a_p;
+ } */ *ap;
{
return (ENOTTY);
/* ARGSUSED */
int
-ufs_select(vp, which, fflags, cred, p)
- struct vnode *vp;
- int which, fflags;
- struct ucred *cred;
- struct proc *p;
+ufs_select(ap)
+ struct vop_select_args /* {
+ struct vnode *a_vp;
+ int a_which;
+ int a_fflags;
+ struct ucred *a_cred;
+ struct proc *a_p;
+ } */ *ap;
{
/*
*/
/* ARGSUSED */
int
-ufs_mmap(vp, fflags, cred, p)
- struct vnode *vp;
- int fflags;
- struct ucred *cred;
- struct proc *p;
+ufs_mmap(ap)
+ struct vop_mmap_args /* {
+ struct vnode *a_vp;
+ int a_fflags;
+ struct ucred *a_cred;
+ struct proc *a_p;
+ } */ *ap;
{
return (EINVAL);
*/
/* ARGSUSED */
int
-ufs_seek(vp, oldoff, newoff, cred)
- struct vnode *vp;
- off_t oldoff, newoff;
- struct ucred *cred;
+ufs_seek(ap)
+ struct vop_seek_args /* {
+ struct vnode *a_vp;
+ off_t a_oldoff;
+ off_t a_newoff;
+ struct ucred *a_cred;
+ } */ *ap;
{
return (0);
* in unlinking directories.
*/
int
-ufs_remove(dvp, vp, cnp) /* converted to CN. */
-/* old: ufs_remove(ndp, p) */
- struct vnode *dvp, *vp;
- struct componentname *cnp;
+ufs_remove(ap)
+ struct vop_remove_args /* {
+ struct vnode *a_dvp;
+ struct vnode *a_vp;
+ struct componentname *a_cnp;
+ } */ *ap;
{
- register struct inode *ip, *dp;
+ register struct inode *ip;
+ register struct vnode *vp = ap->a_vp;
+ register struct vnode *dvp = ap->a_dvp;
int error;
ip = VTOI(vp);
- dp = VTOI(dvp);
- error = ufs_dirremove(dvp, cnp);
- if (!error) {
+ if ((ip->i_flags & (IMMUTABLE | APPEND)) ||
+ (VTOI(dvp)->i_flags & APPEND)) {
+ error = EPERM;
+ goto out;
+ }
+ if ((error = ufs_dirremove(dvp, ap->a_cnp)) == 0) {
ip->i_nlink--;
ip->i_flag |= ICHG;
}
- if (dp == ip)
- vrele(ITOV(ip));
+out:
+ if (dvp == vp)
+ vrele(vp);
else
- ufs_iput(ip);
- ufs_iput(dp);
+ vput(vp);
+ vput(dvp);
return (error);
}
* link vnode call
*/
int
-ufs_link(vp, tdvp, cnp) /* converted to CN. */
-/* old: ufs_link(vp, ndp, p) */
- register struct vnode *vp; /* source vnode */
- struct vnode *tdvp;
- struct componentname *cnp;
+ufs_link(ap)
+ struct vop_link_args /* {
+ struct vnode *a_vp;
+ struct vnode *a_tdvp;
+ struct componentname *a_cnp;
+ } */ *ap;
{
+ register struct vnode *vp = ap->a_vp;
+ register struct vnode *tdvp = ap->a_tdvp;
+ register struct componentname *cnp = ap->a_cnp;
register struct inode *ip;
+ struct timeval tv;
int error;
-#ifdef DIANOSTIC
+#ifdef DIAGNOSTIC
if ((cnp->cn_flags & HASBUF) == 0)
panic("ufs_link: no name");
#endif
- ip = VTOI(vp);
- if ((unsigned short)ip->i_nlink >= LINK_MAX) {
- free(cnp->cn_pnbuf, M_NAMEI);
- return (EMLINK);
+ if (vp->v_mount != tdvp->v_mount) {
+ VOP_ABORTOP(vp, cnp);
+ error = EXDEV;
+ goto out2;
+ }
+ if (vp != tdvp && (error = VOP_LOCK(tdvp))) {
+ VOP_ABORTOP(vp, cnp);
+ goto out2;
+ }
+ ip = VTOI(tdvp);
+ if ((nlink_t)ip->i_nlink >= LINK_MAX) {
+ VOP_ABORTOP(vp, cnp);
+ error = EMLINK;
+ goto out1;
+ }
+ if (ip->i_flags & (IMMUTABLE | APPEND)) {
+ VOP_ABORTOP(vp, cnp);
+ error = EPERM;
+ goto out1;
}
- if (tdvp != vp)
- ILOCK(ip);
ip->i_nlink++;
ip->i_flag |= ICHG;
- error = VOP_UPDATE(vp, &time, &time, 1);
+ tv = time;
+ error = VOP_UPDATE(tdvp, &tv, &tv, 1);
if (!error)
- error = ufs_direnter(ip, tdvp, cnp);
- if (tdvp != vp)
- IUNLOCK(ip);
- FREE(cnp->cn_pnbuf, M_NAMEI);
- vput(tdvp);
+ error = ufs_direnter(ip, vp, cnp);
if (error) {
ip->i_nlink--;
ip->i_flag |= ICHG;
}
+ FREE(cnp->cn_pnbuf, M_NAMEI);
+out1:
+ if (vp != tdvp)
+ VOP_UNLOCK(tdvp);
+out2:
+ vput(vp);
return (error);
}
* Used by lookup to re-aquire things.
*/
int
-relookup(dvp, vpp, cnp) /* converted to CN */
+relookup(dvp, vpp, cnp)
struct vnode *dvp, **vpp;
struct componentname *cnp;
{
- register char *cp; /* pointer into pathname argument */
register struct vnode *dp = 0; /* the directory we are searching */
struct vnode *tdp; /* saved dp */
struct mount *mp; /* mount table entry */
int docache; /* == 0 do not cache last component */
int wantparent; /* 1 => wantparent or lockparent flag */
int rdonly; /* lookup read-only flag bit */
+ char *cp; /* DEBUG: check name ptr/len */
+ int newhash; /* DEBUG: check name hash */
int error = 0;
- int newhash;
/*
* Setup: break out flag bits into variables.
*/
wantparent = cnp->cn_flags & (LOCKPARENT|WANTPARENT);
docache = (cnp->cn_flags & NOCACHE) ^ NOCACHE;
- if (cnp->cn_nameiop == DELETE || (wantparent && cnp->cn_nameiop != CREATE))
+ if (cnp->cn_nameiop == DELETE ||
+ (wantparent && cnp->cn_nameiop != CREATE))
docache = 0;
rdonly = cnp->cn_flags & RDONLY;
cnp->cn_flags &= ~ISSYMLINK;
* the name set the SAVENAME flag. When done, they assume
* responsibility for freeing the pathname buffer.
*/
-/* NEEDWORK: is hash computed needed */
- newhash = 0;
- for (cp = cnp->cn_nameptr; *cp != 0 && *cp != '/'; cp++)
+#ifdef NAMEI_DIAGNOSTIC
+ for (newhash = 0, cp = cnp->cn_nameptr; *cp != 0 && *cp != '/'; cp++)
newhash += (unsigned char)*cp;
if (newhash != cnp->cn_hash)
panic("relookup: bad hash");
if (cnp->cn_namelen != cp - cnp->cn_nameptr)
panic ("relookup: bad len");
- if (cnp->cn_namelen >= NAME_MAX) {
- error = ENAMETOOLONG;
- goto bad;
- }
-#ifdef NAMEI_DIAGNOSTIC /* NEEDSWORK: should go */
- { char c = *cp;
- *cp = '\0';
+ if (*cp != 0)
+ panic("relookup: not last component");
printf("{%s}: ", cnp->cn_nameptr);
- *cp = c; }
-#endif
-#if 0
- cnp->cn_pathlen -= cnp->cn_namelen;
- ndp->ni_next = cp;
-#endif
-#if 0
- cnp->cn_flags |= MAKEENTRY;
- if (*cp == '\0' && docache == 0)
- cnp->cn_flags &= ~MAKEENTRY;
- if (cnp->cn_namelen == 2 &&
- cnp->ni_nameptr[1] == '.' && cnp->cn_nameptr[0] == '.')
- cnp->cn_flags |= ISDOTDOT;
- else cnp->cn_flags &= ~ISDOTDOT;
#endif
/*
return (0);
}
- /*
- * Handle "..": two special cases.
- * 1. If at root directory (e.g. after chroot)
- * then ignore it so can't get out.
- * 2. If this vnode is the root of a mounted
- * filesystem, then replace it with the
- * vnode which was mounted on so we take the
- * .. in the other file system.
- */
-#if 0
- /* This shouldn't happen because rename throws out .. */
- /* NEEDSWORK: what to do about this? */
- if (cnp->cn_flags & ISDOTDOT) {
- for (;;) {
- if (dp == ndp->ni_rootdir) {
- ndp->ni_dvp = dp;
- ndp->ni_vp = dp;
- VREF(dp);
- goto nextname;
- }
- if ((dp->v_flag & VROOT) == 0 ||
- (cnp->cn_flags & NOCROSSMOUNT))
- break;
- tdp = dp;
- dp = dp->v_mount->mnt_vnodecovered;
- vput(tdp);
- VREF(dp);
- VOP_LOCK(dp);
- }
- }
-#endif
if (cnp->cn_flags & ISDOTDOT)
panic ("relookup: lookup on dot-dot");
if (*vpp != NULL)
panic("leaf should be empty");
#endif
-#ifdef NAMEI_DIAGNOSTIC
- printf("not found\n");
-#endif
- if (cnp->cn_nameiop == LOOKUP || cnp->cn_nameiop == DELETE ||
- error != ENOENT || *cp != 0)
+ if (error != EJUSTRETURN)
goto bad;
/*
* If creating and at end of pathname, then can consider
error = EROFS;
goto bad;
}
+ /* ASSERT(dvp == ndp->ni_startdir) */
+ if (cnp->cn_flags & SAVESTART)
+ VREF(dvp);
/*
* We return with ni_vp NULL to indicate that the entry
* doesn't currently exist, leaving a pointer to the
* (possibly locked) directory inode in ndp->ni_dvp.
*/
-#ifdef JOHNH
- /*
- * no need because we don't need to do another lookup.
- * NEEDSWORK: don't do release.
- * but wait...let's try it a different way.
- */
- if (cnp->cn_flags & SAVESTART) {
-#if 0
- ndp->ni_startdir = ndp->ni_dvp;
- VREF(ndp->ni_startdir);
-#else
- /*
- * startdir == dvp, always
- */
- VREF(dvp);
-#endif
- }
-#endif
return (0);
}
-#ifdef NAMEI_DIAGNOSTIC
- printf("found\n");
-#endif
-
dp = *vpp;
+
+#ifdef DIAGNOSTIC
/*
* Check for symbolic link
*/
-#if 0
- if ((dp->v_type == VLNK) &&
- ((cnp->cn_flags & FOLLOW) || *ndp->ni_next == '/')) {
- cnp->cn_flags |= ISSYMLINK;
- return (0);
- }
-#endif
- if (dp->v_type == VLNK) {
+ if (dp->v_type == VLNK && (cnp->cn_flags & FOLLOW))
panic ("relookup: symlink found.\n");
- };
-
- /*
- * Check to see if the vnode has been mounted on;
- * if so find the root of the mounted file system.
- */
-#if 0
- /* NEEDSWORK: mounts should not be crossed in cnlookup */
- /*
- * Checked for in rename (returns EXDEV).
- */
-mntloop:
- while (dp->v_type == VDIR && (mp = dp->v_mountedhere) &&
- (cnp->cn_flags & NOCROSSMOUNT) == 0) {
- if (mp->mnt_flag & MNT_MLOCK) {
- mp->mnt_flag |= MNT_MWAIT;
- sleep((caddr_t)mp, PVFS);
- goto mntloop;
- }
- if (error = VFS_ROOT(dp->v_mountedhere, &tdp))
- goto bad2;
- vput(dp);
- ndp->ni_vp = dp = tdp;
- }
#endif
- if (dp->v_type == VDIR && (dp->v_mountedhere))
- panic ("relookup: mount point encountered.");
-
nextname:
- /*
- * Not a symbolic link. If more pathname,
- * continue at next component, else return.
- */
-#if 0
- if (*ndp->ni_next == '/') {
- cnp->cn_nameptr = ndp->ni_next;
- while (*cnp->cn_nameptr == '/') {
- ndp->ni_nameptr++;
- ndp->ni_pathlen--;
- }
- vrele(ndp->ni_dvp);
- goto dirloop;
- }
-#endif
-
/*
* Check for read-only file systems.
*/
goto bad2;
}
}
- if (cnp->cn_flags & SAVESTART) {
-#if 0
- ndp->ni_startdir = ndp->ni_dvp;
- VREF(ndp->ni_startdir);
-#endif
- /* ASSERT(dvp==ndp->ni_startdir) */
+ /* ASSERT(dvp == ndp->ni_startdir) */
+ if (cnp->cn_flags & SAVESTART)
VREF(dvp);
- }
if (!wantparent)
vrele(dvp);
* directory.
*/
int
-ufs_rename(fdvp, fvp, fcnp,
- tdvp, tvp, tcnp) /* converted to CN. */
-/* old: ufs_rename(fndp, tndp, p) */
- struct vnode *fdvp, *fvp;
- struct componentname *fcnp;
- struct vnode *tdvp, *tvp;
- struct componentname *tcnp;
+ufs_rename(ap)
+ struct vop_rename_args /* {
+ struct vnode *a_fdvp;
+ struct vnode *a_fvp;
+ struct componentname *a_fcnp;
+ struct vnode *a_tdvp;
+ struct vnode *a_tvp;
+ struct componentname *a_tcnp;
+ } */ *ap;
{
+ struct vnode *tvp = ap->a_tvp;
+ register struct vnode *tdvp = ap->a_tdvp;
+ struct vnode *fvp = ap->a_fvp;
+ register struct vnode *fdvp = ap->a_fdvp;
+ register struct componentname *tcnp = ap->a_tcnp;
+ register struct componentname *fcnp = ap->a_fcnp;
register struct inode *ip, *xp, *dp;
struct dirtemplate dirbuf;
+ struct timeval tv;
int doingdirectory = 0, oldparent = 0, newparent = 0;
int error = 0;
int fdvpneedsrele = 1, tdvpneedsrele = 1;
+ u_char namlen;
-#ifdef DIANOSTIC
+#ifdef DIAGNOSTIC
if ((tcnp->cn_flags & HASBUF) == 0 ||
(fcnp->cn_flags & HASBUF) == 0)
panic("ufs_rename: no name");
#endif
- dp = VTOI(fdvp);
- ip = VTOI(fvp);
+ /*
+ * Check for cross-device rename.
+ */
+ if ((fvp->v_mount != tdvp->v_mount) ||
+ (tvp && (fvp->v_mount != tvp->v_mount))) {
+ error = EXDEV;
+abortit:
+ VOP_ABORTOP(tdvp, tcnp); /* XXX, why not in NFS? */
+ if (tdvp == tvp)
+ vrele(tdvp);
+ else
+ vput(tdvp);
+ if (tvp)
+ vput(tvp);
+ VOP_ABORTOP(fdvp, fcnp); /* XXX, why not in NFS? */
+ vrele(fdvp);
+ vrele(fvp);
+ return (error);
+ }
+
/*
* Check if just deleting a link name.
*/
+ if (tvp && ((VTOI(tvp)->i_flags & (IMMUTABLE | APPEND)) ||
+ (VTOI(tdvp)->i_flags & APPEND))) {
+ error = EPERM;
+ goto abortit;
+ }
if (fvp == tvp) {
- VOP_ABORTOP(tdvp, tcnp);
+ if (fvp->v_type == VDIR) {
+ error = EINVAL;
+ goto abortit;
+ }
+ VOP_ABORTOP(fdvp, fcnp);
+ vrele(fdvp);
+ vrele(fvp);
vput(tdvp);
vput(tvp);
- vrele(fdvp);
- if ((ip->i_mode&IFMT) == IFDIR) {
- VOP_ABORTOP(fdvp, fcnp);
- vrele(fvp);
- return (EINVAL);
- }
- doingdirectory = 0;
- goto unlinkit;
+ tcnp->cn_flags &= ~MODMASK;
+ tcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
+ if ((tcnp->cn_flags & SAVESTART) == 0)
+ panic("ufs_rename: lost from startdir");
+ tcnp->cn_nameiop = DELETE;
+ (void) relookup(tdvp, &tvp, tcnp);
+ return (VOP_REMOVE(tdvp, tvp, tcnp));
+ }
+ if (error = VOP_LOCK(fvp))
+ goto abortit;
+ dp = VTOI(fdvp);
+ ip = VTOI(fvp);
+ if ((ip->i_flags & (IMMUTABLE | APPEND)) || (dp->i_flags & APPEND)) {
+ VOP_UNLOCK(fvp);
+ error = EPERM;
+ goto abortit;
}
- ILOCK(ip);
- if ((ip->i_mode&IFMT) == IFDIR) {
+ if ((ip->i_mode & IFMT) == IFDIR) {
/*
* Avoid ".", "..", and aliases of "." for obvious reasons.
*/
if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') ||
- dp == ip || (fcnp->cn_flags&ISDOTDOT) || (ip->i_flag & IRENAME)) {
- VOP_ABORTOP(tdvp, tcnp);
- vput(tdvp);
- if (tvp)
- vput(tvp);
- VOP_ABORTOP(fdvp, fcnp);
- vrele(fdvp);
- vput(fvp);
- return (EINVAL);
+ dp == ip || (fcnp->cn_flags&ISDOTDOT) ||
+ (ip->i_flag & IRENAME)) {
+ VOP_UNLOCK(fvp);
+ error = EINVAL;
+ goto abortit;
}
ip->i_flag |= IRENAME;
oldparent = dp->i_number;
}
vrele(fdvp);
+ /*
+ * When the target exists, both the directory
+ * and target vnodes are returned locked.
+ */
+ dp = VTOI(tdvp);
+ xp = NULL;
+ if (tvp)
+ xp = VTOI(tvp);
+
/*
* 1) Bump link count while we're moving stuff
* around. If we crash somewhere before
*/
ip->i_nlink++;
ip->i_flag |= ICHG;
- error = VOP_UPDATE(fvp, &time, &time, 1);
- IUNLOCK(ip);
+ tv = time;
+ if (error = VOP_UPDATE(fvp, &tv, &tv, 1)) {
+ VOP_UNLOCK(fvp);
+ goto bad;
+ }
- /*
- * When the target exists, both the directory
- * and target vnodes are returned locked.
- */
- dp = VTOI(tdvp);
- xp = NULL;
- if (tvp)
- xp = VTOI(tvp);
/*
* If ".." must be changed (ie the directory gets a new
* parent) then the source directory must not be in the
* to namei, as the parent directory is unlocked by the
* call to checkpath().
*/
+ error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_proc);
+ VOP_UNLOCK(fvp);
if (oldparent != dp->i_number)
newparent = dp->i_number;
if (doingdirectory && newparent) {
- VOP_LOCK(fvp);
- error = ufs_access(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_proc);
- VOP_UNLOCK(fvp);
- if (error)
+ if (error) /* write access check above */
goto bad;
if (xp != NULL)
- ufs_iput(xp);
+ vput(tvp);
if (error = ufs_checkpath(ip, dp, tcnp->cn_cred))
goto out;
if ((tcnp->cn_flags & SAVESTART) == 0)
panic("ufs_rename: lost to startdir");
- p->p_spare[1]--;
if (error = relookup(tdvp, &tvp, tcnp))
goto out;
dp = VTOI(tdvp);
* parent we don't fool with the link count.
*/
if (doingdirectory && newparent) {
- if ((unsigned short)dp->i_nlink >= LINK_MAX) {
+ if ((nlink_t)dp->i_nlink >= LINK_MAX) {
error = EMLINK;
goto bad;
}
dp->i_nlink++;
dp->i_flag |= ICHG;
- if (error = VOP_UPDATE(ITOV(dp), &time, &time, 1))
+ if (error = VOP_UPDATE(tdvp, &tv, &tv, 1))
goto bad;
}
if (error = ufs_direnter(ip, tdvp, tcnp)) {
if (doingdirectory && newparent) {
dp->i_nlink--;
dp->i_flag |= ICHG;
- (void)VOP_UPDATE(ITOV(dp), &time, &time, 1);
+ (void)VOP_UPDATE(tdvp, &tv, &tv, 1);
}
goto bad;
}
- ufs_iput(dp);
+ vput(tdvp);
} else {
if (xp->i_dev != dp->i_dev || xp->i_dev != ip->i_dev)
panic("rename: EXDEV");
error = ENOTDIR;
goto bad;
}
- cache_purge(ITOV(dp));
+ cache_purge(tdvp);
} else if (doingdirectory) {
error = EISDIR;
goto bad;
dp->i_nlink--;
dp->i_flag |= ICHG;
}
- ufs_iput(dp);
+ vput(tdvp);
/*
* Adjust the link count of the target to
* reflect the dirrewrite above. If this is
if (doingdirectory) {
if (--xp->i_nlink != 0)
panic("rename: linked directory");
- error = VOP_TRUNCATE(ITOV(xp), (u_long)0, IO_SYNC);
+ error = VOP_TRUNCATE(tvp, (off_t)0, IO_SYNC,
+ tcnp->cn_cred, tcnp->cn_proc);
}
xp->i_flag |= ICHG;
- ufs_iput(xp);
+ vput(tvp);
xp = NULL;
}
/*
* 3) Unlink the source.
*/
-unlinkit:
fcnp->cn_flags &= ~MODMASK;
fcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
if ((fcnp->cn_flags & SAVESTART) == 0)
panic("ufs_rename: lost from startdir");
- p->p_spare[1]--;
- (void) relookup(fdvp, &fvp, fcnp); /* NEEDSWORK: startdir stuff */
+ (void) relookup(fdvp, &fvp, fcnp);
if (fvp != NULL) {
xp = VTOI(fvp);
dp = VTOI(fdvp);
*/
if (doingdirectory)
panic("rename: lost dir entry");
- vrele(ITOV(ip));
+ vrele(ap->a_fvp);
return (0);
}
/*
if (doingdirectory && newparent) {
dp->i_nlink--;
dp->i_flag |= ICHG;
- error = vn_rdwr(UIO_READ, ITOV(xp), (caddr_t)&dirbuf,
+ error = vn_rdwr(UIO_READ, fvp, (caddr_t)&dirbuf,
sizeof (struct dirtemplate), (off_t)0,
UIO_SYSSPACE, IO_NODELOCKED,
tcnp->cn_cred, (int *)0, (struct proc *)0);
if (error == 0) {
- if (dirbuf.dotdot_namlen != 2 ||
+# if (BYTE_ORDER == LITTLE_ENDIAN)
+ if (fvp->v_mount->mnt_maxsymlinklen <= 0)
+ namlen = dirbuf.dotdot_type;
+ else
+ namlen = dirbuf.dotdot_namlen;
+# else
+ namlen = dirbuf.dotdot_namlen;
+# endif
+ if (namlen != 2 ||
dirbuf.dotdot_name[0] != '.' ||
dirbuf.dotdot_name[1] != '.') {
- ufs_dirbad(xp, 12,
+ ufs_dirbad(xp, (doff_t)12,
"rename: mangled dir");
} else {
dirbuf.dotdot_ino = newparent;
- (void) vn_rdwr(UIO_WRITE, ITOV(xp),
+ (void) vn_rdwr(UIO_WRITE, fvp,
(caddr_t)&dirbuf,
sizeof (struct dirtemplate),
(off_t)0, UIO_SYSSPACE,
IO_NODELOCKED|IO_SYNC,
tcnp->cn_cred, (int *)0,
(struct proc *)0);
- cache_purge(ITOV(dp));
+ cache_purge(fdvp);
}
}
}
xp->i_flag &= ~IRENAME;
}
if (dp)
- vput(ITOV(dp));
+ vput(fdvp);
if (xp)
- vput(ITOV(xp));
- vrele(ITOV(ip));
+ vput(fvp);
+ vrele(ap->a_fvp);
return (error);
bad:
vput(ITOV(xp));
vput(ITOV(dp));
out:
- ip->i_nlink--;
- ip->i_flag |= ICHG;
- vrele(ITOV(ip));
+ if (VOP_LOCK(fvp) == 0) {
+ ip->i_nlink--;
+ ip->i_flag |= ICHG;
+ vput(fvp);
+ } else
+ vrele(fvp);
return (error);
}
* A virgin directory (no blushing please).
*/
static struct dirtemplate mastertemplate = {
+ 0, 12, DT_DIR, 1, ".",
+ 0, DIRBLKSIZ - 12, DT_DIR, 2, ".."
+};
+static struct odirtemplate omastertemplate = {
0, 12, 1, ".",
0, DIRBLKSIZ - 12, 2, ".."
};
* Mkdir system call
*/
int
-ufs_mkdir(dvp, vpp, cnp, vap) /* converted to CN. */
-/* was: ufs_mkdir(cnp, vap) */
- struct vnode *dvp;
- struct vnode **vpp;
- struct componentname *cnp;
- struct vattr *vap;
+ufs_mkdir(ap)
+ struct vop_mkdir_args /* {
+ struct vnode *a_dvp;
+ struct vnode **a_vpp;
+ struct componentname *a_cnp;
+ struct vattr *a_vap;
+ } */ *ap;
{
+ register struct vnode *dvp = ap->a_dvp;
+ register struct vattr *vap = ap->a_vap;
+ register struct componentname *cnp = ap->a_cnp;
register struct inode *ip, *dp;
struct vnode *tvp;
- struct dirtemplate dirtemplate;
- int error;
- int dmode;
+ struct dirtemplate dirtemplate, *dtp;
+ struct timeval tv;
+ int error, dmode;
-#ifdef DIANOSTIC
+#ifdef DIAGNOSTIC
if ((cnp->cn_flags & HASBUF) == 0)
panic("ufs_mkdir: no name");
#endif
dp = VTOI(dvp);
- if ((unsigned short)dp->i_nlink >= LINK_MAX) {
- free(cnp->cn_pnbuf, M_NAMEI);
- ufs_iput(dp);
- return (EMLINK);
+ if ((nlink_t)dp->i_nlink >= LINK_MAX) {
+ error = EMLINK;
+ goto out;
}
- dmode = vap->va_mode&0777;
+ dmode = vap->va_mode & 0777;
dmode |= IFDIR;
/*
- * Must simulate part of maknode here to acquire the inode, but
- * not have it entered in the parent directory. The entry is made
- * later after writing "." and ".." entries.
+ * Must simulate part of ufs_makeinode here to acquire the inode,
+ * but not have it entered in the parent directory. The entry is
+ * made later after writing "." and ".." entries.
*/
- if (error = VOP_VALLOC(dvp, dmode, cnp->cn_cred, &tvp)) {
- free(cnp->cn_pnbuf, M_NAMEI);
- ufs_iput(dp);
- return (error);
- }
+ if (error = VOP_VALLOC(dvp, dmode, cnp->cn_cred, &tvp))
+ goto out;
ip = VTOI(tvp);
ip->i_uid = cnp->cn_cred->cr_uid;
ip->i_gid = dp->i_gid;
(error = chkiq(ip, 1, cnp->cn_cred, 0))) {
free(cnp->cn_pnbuf, M_NAMEI);
VOP_VFREE(tvp, ip->i_number, dmode);
- ufs_iput(ip);
- ufs_iput(dp);
+ vput(tvp);
+ vput(dvp);
return (error);
}
#endif
ip->i_flag |= IACC|IUPD|ICHG;
ip->i_mode = dmode;
- ITOV(ip)->v_type = VDIR; /* Rest init'd in iget() */
+ tvp->v_type = VDIR; /* Rest init'd in iget() */
ip->i_nlink = 2;
- error = VOP_UPDATE(ITOV(ip), &time, &time, 1);
+ tv = time;
+ error = VOP_UPDATE(tvp, &tv, &tv, 1);
/*
* Bump link count in parent directory
*/
dp->i_nlink++;
dp->i_flag |= ICHG;
- if (error = VOP_UPDATE(ITOV(dp), &time, &time, 1))
+ if (error = VOP_UPDATE(dvp, &tv, &tv, 1))
goto bad;
/* Initialize directory with "." and ".." from static template. */
- dirtemplate = mastertemplate;
+ if (dvp->v_mount->mnt_maxsymlinklen > 0)
+ dtp = &mastertemplate;
+ else
+ dtp = (struct dirtemplate *)&omastertemplate;
+ dirtemplate = *dtp;
dirtemplate.dot_ino = ip->i_number;
dirtemplate.dotdot_ino = dp->i_number;
- error = vn_rdwr(UIO_WRITE, ITOV(ip), (caddr_t)&dirtemplate,
+ error = vn_rdwr(UIO_WRITE, tvp, (caddr_t)&dirtemplate,
sizeof (dirtemplate), (off_t)0, UIO_SYSSPACE,
IO_NODELOCKED|IO_SYNC, cnp->cn_cred, (int *)0, (struct proc *)0);
if (error) {
if (error) {
ip->i_nlink = 0;
ip->i_flag |= ICHG;
- ufs_iput(ip);
+ vput(tvp);
} else
- *vpp = ITOV(ip);
+ *ap->a_vpp = tvp;
+out:
FREE(cnp->cn_pnbuf, M_NAMEI);
- ufs_iput(dp);
+ vput(dvp);
return (error);
}
* Rmdir system call.
*/
int
-ufs_rmdir(dvp, vp, cnp) /* converted to CN. */
-/* old: ufs_rmdir(ndp, p) */
- struct vnode *dvp, *vp;
- struct componentname *cnp;
+ufs_rmdir(ap)
+ struct vop_rmdir_args /* {
+ struct vnode *a_dvp;
+ struct vnode *a_vp;
+ struct componentname *a_cnp;
+ } */ *ap;
{
+ register struct vnode *vp = ap->a_vp;
+ register struct vnode *dvp = ap->a_dvp;
+ register struct componentname *cnp = ap->a_cnp;
register struct inode *ip, *dp;
int error;
*/
if (dp == ip) {
vrele(dvp);
- ufs_iput(ip);
+ vput(vp);
return (EINVAL);
}
/*
error = ENOTEMPTY;
goto out;
}
+ if ((dp->i_flags & APPEND) || (ip->i_flags & (IMMUTABLE | APPEND))) {
+ error = EPERM;
+ goto out;
+ }
/*
* Delete reference to directory before purging
* inode. If we crash in between, the directory
dp->i_nlink--;
dp->i_flag |= ICHG;
cache_purge(dvp);
- ufs_iput(dp);
+ vput(dvp);
dvp = NULL;
/*
* Truncate inode. The only stuff left
* worry about them later.
*/
ip->i_nlink -= 2;
- error = VOP_TRUNCATE(vp, (u_long)0, IO_SYNC);
+ error = VOP_TRUNCATE(vp, (off_t)0, IO_SYNC, cnp->cn_cred,
+ cnp->cn_proc);
cache_purge(ITOV(ip));
out:
if (dvp)
- ufs_iput(dp);
- ufs_iput(ip);
+ vput(dvp);
+ vput(vp);
return (error);
}
* symlink -- make a symbolic link
*/
int
-ufs_symlink(dvp, vpp, cnp, vap, target) /* converted to CN. */
-/* old: ufs_symlink(ndp, vap, target, p) */
- struct vnode *dvp;
- struct vnode **vpp;
- struct componentname *cnp;
- struct vattr *vap;
- char *target;
+ufs_symlink(ap)
+ struct vop_symlink_args /* {
+ struct vnode *a_dvp;
+ struct vnode **a_vpp;
+ struct componentname *a_cnp;
+ struct vattr *a_vap;
+ char *a_target;
+ } */ *ap;
{
- int error;
+ register struct vnode *vp, **vpp = ap->a_vpp;
+ register struct inode *ip;
+ int len, error;
- if (error = ufs_makeinode(IFLNK | vap->va_mode, dvp, vpp, cnp))
+ if (error = ufs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp,
+ vpp, ap->a_cnp))
return (error);
- error = vn_rdwr(UIO_WRITE, *vpp, target, strlen(target), (off_t)0,
- UIO_SYSSPACE, IO_NODELOCKED, cnp->cn_cred, (int *)0,
- (struct proc *)0);
- vput(*vpp);
+ vp = *vpp;
+ len = strlen(ap->a_target);
+ if (len < vp->v_mount->mnt_maxsymlinklen) {
+ ip = VTOI(vp);
+ bcopy(ap->a_target, (char *)ip->i_shortlink, len);
+ ip->i_size = len;
+ ip->i_flag |= IUPD|ICHG;
+ } else
+ error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0,
+ UIO_SYSSPACE, IO_NODELOCKED, ap->a_cnp->cn_cred, (int *)0,
+ (struct proc *)0);
+ vput(vp);
return (error);
}
/*
- * Vnode op for read and write
+ * Vnode op for reading directories.
+ *
+ * The routine below assumes that the on-disk format of a directory
+ * is the same as that defined by <sys/dirent.h>. If the on-disk
+ * format changes, then it will be necessary to do a conversion
+ * from the on-disk format that read returns to the format defined
+ * by <sys/dirent.h>.
*/
int
-ufs_readdir(vp, uio, cred, eofflagp)
- struct vnode *vp;
- register struct uio *uio;
- struct ucred *cred;
- int *eofflagp;
+ufs_readdir(ap)
+ struct vop_readdir_args /* {
+ struct vnode *a_vp;
+ struct uio *a_uio;
+ struct ucred *a_cred;
+ } */ *ap;
{
+ register struct uio *uio = ap->a_uio;
int count, lost, error;
count = uio->uio_resid;
return (EINVAL);
uio->uio_resid = count;
uio->uio_iov->iov_len = count;
- error = VOP_READ(vp, uio, 0, cred);
+# if (BYTE_ORDER == LITTLE_ENDIAN)
+ if (ap->a_vp->v_mount->mnt_maxsymlinklen > 0) {
+ error = VOP_READ(ap->a_vp, uio, 0, ap->a_cred);
+ } else {
+ struct dirent *dp, *edp;
+ struct uio auio;
+ struct iovec aiov;
+ caddr_t dirbuf;
+ int readcnt;
+ u_char tmp;
+
+ auio = *uio;
+ auio.uio_iov = &aiov;
+ auio.uio_iovcnt = 1;
+ auio.uio_segflg = UIO_SYSSPACE;
+ aiov.iov_len = count;
+ MALLOC(dirbuf, caddr_t, count, M_TEMP, M_WAITOK);
+ aiov.iov_base = dirbuf;
+ error = VOP_READ(ap->a_vp, &auio, 0, ap->a_cred);
+ if (error == 0) {
+ readcnt = count - auio.uio_resid;
+ edp = (struct dirent *)&dirbuf[readcnt];
+ for (dp = (struct dirent *)dirbuf; dp < edp; ) {
+ tmp = dp->d_namlen;
+ dp->d_namlen = dp->d_type;
+ dp->d_type = tmp;
+ if (dp->d_reclen > 0) {
+ dp = (struct dirent *)
+ ((char *)dp + dp->d_reclen);
+ } else {
+ error = EIO;
+ break;
+ }
+ }
+ if (dp >= edp)
+ error = uiomove(dirbuf, readcnt, uio);
+ }
+ FREE(dirbuf, M_TEMP);
+ }
+# else
+ error = VOP_READ(ap->a_vp, uio, 0, ap->a_cred);
+# endif
uio->uio_resid += lost;
- if ((VTOI(vp)->i_size - uio->uio_offset) <= 0)
- *eofflagp = 1;
- else
- *eofflagp = 0;
return (error);
}
* Return target name of a symbolic link
*/
int
-ufs_readlink(vp, uiop, cred)
- struct vnode *vp;
- struct uio *uiop;
- struct ucred *cred;
+ufs_readlink(ap)
+ struct vop_readlink_args /* {
+ struct vnode *a_vp;
+ struct uio *a_uio;
+ struct ucred *a_cred;
+ } */ *ap;
{
+ register struct vnode *vp = ap->a_vp;
+ register struct inode *ip = VTOI(vp);
+ int isize;
- return (VOP_READ(vp, uiop, 0, cred));
+ isize = ip->i_size;
+ if (isize < vp->v_mount->mnt_maxsymlinklen) {
+ uiomove((char *)ip->i_shortlink, isize, ap->a_uio);
+ return (0);
+ }
+ return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred));
}
/*
*/
/* ARGSUSED */
int
-ufs_abortop(dvp, cnp) /* converted to CN. */
- struct vnode *dvp;
- struct componentname *cnp;
+ufs_abortop(ap)
+ struct vop_abortop_args /* {
+ struct vnode *a_dvp;
+ struct componentname *a_cnp;
+ } */ *ap;
{
- if ((cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
- FREE(cnp->cn_pnbuf, M_NAMEI);
+ if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
+ FREE(ap->a_cnp->cn_pnbuf, M_NAMEI);
return (0);
}
/*
- * Lock an inode.
+ * Lock an inode. If its already locked, set the WANT bit and sleep.
*/
int
-ufs_lock(vp)
- struct vnode *vp;
+ufs_lock(ap)
+ struct vop_lock_args /* {
+ struct vnode *a_vp;
+ } */ *ap;
{
- register struct inode *ip = VTOI(vp);
+ register struct vnode *vp = ap->a_vp;
+ register struct inode *ip;
+ struct proc *p = curproc; /* XXX */
- ILOCK(ip);
+start:
+ while (vp->v_flag & VXLOCK) {
+ vp->v_flag |= VXWANT;
+ sleep((caddr_t)vp, PINOD);
+ }
+ if (vp->v_tag == VT_NON)
+ return (ENOENT);
+ ip = VTOI(vp);
+ if (ip->i_flag & ILOCKED) {
+ ip->i_flag |= IWANT;
+#ifdef DIAGNOSTIC
+ if (p) {
+ if (p->p_pid == ip->i_lockholder)
+ panic("locking against myself");
+ ip->i_lockwaiter = p->p_pid;
+ } else
+ ip->i_lockwaiter = -1;
+#endif
+ (void) sleep((caddr_t)ip, PINOD);
+ goto start;
+ }
+#ifdef DIAGNOSTIC
+ ip->i_lockwaiter = 0;
+ if (ip->i_lockholder != 0)
+ panic("lockholder (%d) != 0", ip->i_lockholder);
+ if (p && p->p_pid == 0)
+ printf("locking by process 0\n");
+ if (p)
+ ip->i_lockholder = p->p_pid;
+ else
+ ip->i_lockholder = -1;
+#endif
+ ip->i_flag |= ILOCKED;
return (0);
}
/*
- * Unlock an inode.
+ * Unlock an inode. If WANT bit is on, wakeup.
*/
+int lockcount = 90;
int
-ufs_unlock(vp)
- struct vnode *vp;
+ufs_unlock(ap)
+ struct vop_unlock_args /* {
+ struct vnode *a_vp;
+ } */ *ap;
{
- register struct inode *ip = VTOI(vp);
+ register struct inode *ip = VTOI(ap->a_vp);
+ struct proc *p = curproc; /* XXX */
- if (!(ip->i_flag & ILOCKED))
+#ifdef DIAGNOSTIC
+ if ((ip->i_flag & ILOCKED) == 0) {
+ vprint("ufs_unlock: unlocked inode", ap->a_vp);
panic("ufs_unlock NOT LOCKED");
- IUNLOCK(ip);
+ }
+ if (p && p->p_pid != ip->i_lockholder && p->p_pid > -1 &&
+ ip->i_lockholder > -1 && lockcount++ < 100)
+ panic("unlocker (%d) != lock holder (%d)",
+ p->p_pid, ip->i_lockholder);
+ ip->i_lockholder = 0;
+#endif
+ ip->i_flag &= ~ILOCKED;
+ if (ip->i_flag & IWANT) {
+ ip->i_flag &= ~IWANT;
+ wakeup((caddr_t)ip);
+ }
return (0);
}
* Check for a locked inode.
*/
int
-ufs_islocked(vp)
- struct vnode *vp;
+ufs_islocked(ap)
+ struct vop_islocked_args /* {
+ struct vnode *a_vp;
+ } */ *ap;
{
- if (VTOI(vp)->i_flag & ILOCKED)
+ if (VTOI(ap->a_vp)->i_flag & ILOCKED)
return (1);
return (0);
}
* Calculate the logical to physical mapping if not done already,
* then call the device strategy routine.
*/
-int checkoverlap = 0;
-
int
-ufs_strategy(bp)
- register struct buf *bp;
+ufs_strategy(ap)
+ struct vop_strategy_args /* {
+ struct buf *a_bp;
+ } */ *ap;
{
+ register struct buf *bp = ap->a_bp;
+ register struct vnode *vp = bp->b_vp;
register struct inode *ip;
- struct vnode *vp;
int error;
- ip = VTOI(bp->b_vp);
- if (bp->b_vp->v_type == VBLK || bp->b_vp->v_type == VCHR)
+ ip = VTOI(vp);
+ if (vp->v_type == VBLK || vp->v_type == VCHR)
panic("ufs_strategy: spec");
if (bp->b_blkno == bp->b_lblkno) {
if (error =
- VOP_BMAP(bp->b_vp, bp->b_lblkno, NULL, &bp->b_blkno))
+ VOP_BMAP(vp, bp->b_lblkno, NULL, &bp->b_blkno, NULL)) {
+ bp->b_error = error;
+ bp->b_flags |= B_ERROR;
+ biodone(bp);
return (error);
+ }
if ((long)bp->b_blkno == -1)
clrbuf(bp);
}
biodone(bp);
return (0);
}
-#ifdef DIAGNOSTIC
- if (checkoverlap && bp->b_vp->v_mount->mnt_stat.f_type == MOUNT_UFS)
- ffs_checkoverlap(bp, ip);
-#endif
-
vp = ip->i_devvp;
bp->b_dev = vp->v_rdev;
- (vp->v_op->vop_strategy)(bp);
+ VOCALL (vp->v_op, VOFFSET(vop_strategy), ap);
return (0);
}
* Print out the contents of an inode.
*/
int
-ufs_print(vp)
- struct vnode *vp;
+ufs_print(ap)
+ struct vop_print_args /* {
+ struct vnode *a_vp;
+ } */ *ap;
{
+ register struct vnode *vp = ap->a_vp;
register struct inode *ip = VTOI(vp);
printf("tag VT_UFS, ino %d, on dev %d, %d", ip->i_number,
* Read wrapper for special devices.
*/
int
-ufsspec_read(vp, uio, ioflag, cred)
- struct vnode *vp;
- struct uio *uio;
- int ioflag;
- struct ucred *cred;
+ufsspec_read(ap)
+ struct vop_read_args /* {
+ struct vnode *a_vp;
+ struct uio *a_uio;
+ int a_ioflag;
+ struct ucred *a_cred;
+ } */ *ap;
{
/*
* Set access flag.
*/
- VTOI(vp)->i_flag |= IACC;
- return (spec_read(vp, uio, ioflag, cred));
+ VTOI(ap->a_vp)->i_flag |= IACC;
+ return (VOCALL (spec_vnodeop_p, VOFFSET(vop_read), ap));
}
/*
* Write wrapper for special devices.
*/
int
-ufsspec_write(vp, uio, ioflag, cred)
- struct vnode *vp;
- struct uio *uio;
- int ioflag;
- struct ucred *cred;
+ufsspec_write(ap)
+ struct vop_write_args /* {
+ struct vnode *a_vp;
+ struct uio *a_uio;
+ int a_ioflag;
+ struct ucred *a_cred;
+ } */ *ap;
{
/*
* Set update and change flags.
*/
- VTOI(vp)->i_flag |= IUPD|ICHG;
- return (spec_write(vp, uio, ioflag, cred));
+ VTOI(ap->a_vp)->i_flag |= IUPD|ICHG;
+ return (VOCALL (spec_vnodeop_p, VOFFSET(vop_write), ap));
}
/*
* Update the times on the inode then do device close.
*/
int
-ufsspec_close(vp, fflag, cred, p)
- struct vnode *vp;
- int fflag;
- struct ucred *cred;
- struct proc *p;
+ufsspec_close(ap)
+ struct vop_close_args /* {
+ struct vnode *a_vp;
+ int a_fflag;
+ struct ucred *a_cred;
+ struct proc *a_p;
+ } */ *ap;
{
- register struct inode *ip = VTOI(vp);
+ register struct inode *ip = VTOI(ap->a_vp);
- if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))
+ if (ap->a_vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))
ITIMES(ip, &time, &time);
- return (spec_close(vp, fflag, cred, p));
+ return (VOCALL (spec_vnodeop_p, VOFFSET(vop_close), ap));
}
#ifdef FIFO
* Read wrapper for fifo's
*/
int
-ufsfifo_read(vp, uio, ioflag, cred)
- struct vnode *vp;
- struct uio *uio;
- int ioflag;
- struct ucred *cred;
+ufsfifo_read(ap)
+ struct vop_read_args /* {
+ struct vnode *a_vp;
+ struct uio *a_uio;
+ int a_ioflag;
+ struct ucred *a_cred;
+ } */ *ap;
{
+ extern int (**fifo_vnodeop_p)();
/*
* Set access flag.
*/
- VTOI(vp)->i_flag |= IACC;
- return (fifo_read(vp, uio, ioflag, cred));
+ VTOI(ap->a_vp)->i_flag |= IACC;
+ return (VOCALL (fifo_vnodeop_p, VOFFSET(vop_read), ap));
}
/*
* Write wrapper for fifo's.
*/
int
-ufsfifo_write(vp, uio, ioflag, cred)
- struct vnode *vp;
- struct uio *uio;
- int ioflag;
- struct ucred *cred;
+ufsfifo_write(ap)
+ struct vop_write_args /* {
+ struct vnode *a_vp;
+ struct uio *a_uio;
+ int a_ioflag;
+ struct ucred *a_cred;
+ } */ *ap;
{
+ extern int (**fifo_vnodeop_p)();
/*
* Set update and change flags.
*/
- VTOI(vp)->i_flag |= IUPD|ICHG;
- return (fifo_write(vp, uio, ioflag, cred));
+ VTOI(ap->a_vp)->i_flag |= IUPD|ICHG;
+ return (VOCALL (fifo_vnodeop_p, VOFFSET(vop_write), ap));
}
/*
*
* Update the times on the inode then do device close.
*/
-ufsfifo_close(vp, fflag, cred, p)
- struct vnode *vp;
- int fflag;
- struct ucred *cred;
- struct proc *p;
+ufsfifo_close(ap)
+ struct vop_close_args /* {
+ struct vnode *a_vp;
+ int a_fflag;
+ struct ucred *a_cred;
+ struct proc *a_p;
+ } */ *ap;
{
- register struct inode *ip = VTOI(vp);
+ extern int (**fifo_vnodeop_p)();
+ register struct inode *ip = VTOI(ap->a_vp);
- if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))
+ if (ap->a_vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))
ITIMES(ip, &time, &time);
- return (fifo_close(vp, fflag, cred, p));
+ return (VOCALL (fifo_vnodeop_p, VOFFSET(vop_close), ap));
}
#endif /* FIFO */
+/*
+ * Return POSIX pathconf information applicable to ufs filesystems.
+ */
+ufs_pathconf(ap)
+ struct vop_pathconf_args /* {
+ struct vnode *a_vp;
+ int a_name;
+ int *a_retval;
+ } */ *ap;
+{
+
+ switch (ap->a_name) {
+ case _PC_LINK_MAX:
+ *ap->a_retval = LINK_MAX;
+ return (0);
+ case _PC_NAME_MAX:
+ *ap->a_retval = NAME_MAX;
+ return (0);
+ case _PC_PATH_MAX:
+ *ap->a_retval = PATH_MAX;
+ return (0);
+ case _PC_PIPE_BUF:
+ *ap->a_retval = PIPE_BUF;
+ return (0);
+ case _PC_CHOWN_RESTRICTED:
+ *ap->a_retval = 1;
+ return (0);
+ case _PC_NO_TRUNC:
+ *ap->a_retval = 1;
+ return (0);
+ default:
+ return (EINVAL);
+ }
+ /* NOTREACHED */
+}
+
/*
* Advisory record locking support
*/
int
-ufs_advlock(vp, id, op, fl, flags)
- struct vnode *vp;
- caddr_t id;
- int op;
- register struct flock *fl;
- int flags;
+ufs_advlock(ap)
+ struct vop_advlock_args /* {
+ struct vnode *a_vp;
+ caddr_t a_id;
+ int a_op;
+ struct flock *a_fl;
+ int a_flags;
+ } */ *ap;
{
- register struct inode *ip = VTOI(vp);
+ register struct inode *ip = VTOI(ap->a_vp);
+ register struct flock *fl = ap->a_fl;
register struct lockf *lock;
off_t start, end;
int error;
* Avoid the common case of unlocking when inode has no locks.
*/
if (ip->i_lockf == (struct lockf *)0) {
- if (op != F_SETLK) {
+ if (ap->a_op != F_SETLK) {
fl->l_type = F_UNLCK;
return (0);
}
MALLOC(lock, struct lockf *, sizeof *lock, M_LOCKF, M_WAITOK);
lock->lf_start = start;
lock->lf_end = end;
- lock->lf_id = id;
+ lock->lf_id = ap->a_id;
lock->lf_inode = ip;
lock->lf_type = fl->l_type;
lock->lf_next = (struct lockf *)0;
lock->lf_block = (struct lockf *)0;
- lock->lf_flags = flags;
+ lock->lf_flags = ap->a_flags;
/*
* Do the requested operation.
*/
- switch(op) {
+ switch(ap->a_op) {
case F_SETLK:
return (lf_setlock(lock));
int
ufs_vinit(mntp, specops, fifoops, vpp)
struct mount *mntp;
- struct vnodeops *specops, *fifoops;
+ int (**specops)();
+ int (**fifoops)();
struct vnode **vpp;
{
- struct inode *ip, *nip;
+ struct inode *ip;
struct vnode *vp, *nvp;
- extern struct vnodeops spec_vnodeops;
vp = *vpp;
ip = VTOI(vp);
/*
* Discard unneeded vnode, but save its inode.
*/
- remque(ip);
- IUNLOCK(ip);
+ ufs_ihashrem(ip);
+ VOP_UNLOCK(vp);
nvp->v_data = vp->v_data;
vp->v_data = NULL;
- vp->v_op = &spec_vnodeops;
+ vp->v_op = spec_vnodeop_p;
vrele(vp);
vgone(vp);
/*
* Allocate a new inode.
*/
int
-ufs_makeinode(mode, dvp, vpp, cnp) /* converted to CN */
-/* OLD: ufs_makeinode(mode, ndp, vpp) */
+ufs_makeinode(mode, dvp, vpp, cnp)
int mode;
struct vnode *dvp;
struct vnode **vpp;
struct componentname *cnp;
{
register struct inode *ip, *pdir;
+ struct timeval tv;
struct vnode *tvp;
int error;
pdir = VTOI(dvp);
-#ifdef DIANOSTIC
+#ifdef DIAGNOSTIC
if ((cnp->cn_flags & HASBUF) == 0)
panic("ufs_makeinode: no name");
#endif
if (error = VOP_VALLOC(dvp, mode, cnp->cn_cred, &tvp)) {
free(cnp->cn_pnbuf, M_NAMEI);
- ufs_iput(pdir);
+ vput(dvp);
return (error);
}
ip = VTOI(tvp);
- ip->i_uid = cnp->cn_cred->cr_uid;
ip->i_gid = pdir->i_gid;
+ if ((mode & IFMT) == IFLNK)
+ ip->i_uid = pdir->i_uid;
+ else
+ ip->i_uid = cnp->cn_cred->cr_uid;
#ifdef QUOTA
if ((error = getinoquota(ip)) ||
(error = chkiq(ip, 1, cnp->cn_cred, 0))) {
free(cnp->cn_pnbuf, M_NAMEI);
VOP_VFREE(tvp, ip->i_number, mode);
- ufs_iput(ip);
- ufs_iput(pdir);
+ vput(tvp);
+ vput(dvp);
return (error);
}
#endif
/*
* Make sure inode goes to disk before directory entry.
*/
- if (error = VOP_UPDATE(tvp, &time, &time, 1))
+ tv = time;
+ if (error = VOP_UPDATE(tvp, &tv, &tv, 1))
goto bad;
if (error = ufs_direnter(ip, dvp, cnp))
goto bad;
if ((cnp->cn_flags & SAVESTART) == 0)
FREE(cnp->cn_pnbuf, M_NAMEI);
- ufs_iput(pdir);
+ vput(dvp);
*vpp = tvp;
return (0);
* or the directory so must deallocate the inode.
*/
free(cnp->cn_pnbuf, M_NAMEI);
- ufs_iput(pdir);
+ vput(dvp);
ip->i_nlink = 0;
ip->i_flag |= ICHG;
- ufs_iput(ip);
+ vput(tvp);
return (error);
}
-
-
-#if defined(JOHNH) && 0
-/*
- * A hack to get the kernel to compile.
- */
-int
-hang_addrlist()
-{
- return 0;
-}
-int
-free_addrlist()
-{
- return 0;
-}
-#endif
-