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freebsd-dev/sys/kern/vnode_if.src
Robert Watson 988ee790d4 o Change locking rules for VOP_GETACL() to indicate that vnode locks 
must be held when retrieving ACLs from vnodes.  This is required for
  EA-based UFS ACL implementations.
o Update vacl_get_acl() so that it does appropriate vnode locking.
o Remove static from M_ACL malloc define so that it is accessible for
  consumers of ACLs other than in kern_acl.c

Obtained from:	TrustedBSD Project
2000-09-21 18:43:32 +00:00

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#
# Copyright (c) 1992, 1993
# The Regents of the University of California. All rights reserved.
#
# 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.
#
# 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.
#
# @(#)vnode_if.src 8.12 (Berkeley) 5/14/95
# $FreeBSD$
#
#
# Above each of the vop descriptors is a specification of the locking
# protocol used by each vop call. The first column is the name of
# the variable, the remaining three columns are in, out and error
# respectively. The "in" column defines the lock state on input,
# the "out" column defines the state on succesful return, and the
# "error" column defines the locking state on error exit.
#
# The locking value can take the following values:
# L: locked; not converted to type of lock.
# A: any lock type.
# S: locked with shared lock.
# E: locked with exclusive lock for this process.
# O: locked with exclusive lock for other process.
# U: unlocked.
# -: not applicable. vnode does not yet (or no longer) exists.
# =: the same on input and output, may be either L or U.
# X: locked if not nil.
#
#
#% islocked vp = = =
#
vop_islocked {
IN struct vnode *vp;
IN struct proc *p;
};
#
#% lookup dvp L ? ?
#% lookup vpp - L -
#
# XXX - the lookup locking protocol defies simple description and depends
# on the flags and operation fields in the (cnp) structure. Note
# especially that *vpp may equal dvp and both may be locked.
#
vop_lookup {
IN struct vnode *dvp;
INOUT struct vnode **vpp;
IN struct componentname *cnp;
};
#
#% cachedlookup dvp L ? ?
#% cachedlookup vpp - L -
#
# This must be an exact copy of lookup. See kern/vfs_cache.c for details.
#
vop_cachedlookup {
IN struct vnode *dvp;
INOUT struct vnode **vpp;
IN struct componentname *cnp;
};
#
#% create dvp L L L
#% create vpp - L -
#
vop_create {
IN struct vnode *dvp;
OUT struct vnode **vpp;
IN struct componentname *cnp;
IN struct vattr *vap;
};
#
#% whiteout dvp L L L
#
vop_whiteout {
IN struct vnode *dvp;
IN struct componentname *cnp;
IN int flags;
};
#
#% mknod dvp L L L
#% mknod vpp - X -
#
vop_mknod {
IN struct vnode *dvp;
OUT struct vnode **vpp;
IN struct componentname *cnp;
IN struct vattr *vap;
};
#
#% open vp L L L
#
vop_open {
IN struct vnode *vp;
IN int mode;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% close vp U U U
#
vop_close {
IN struct vnode *vp;
IN int fflag;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% access vp L L L
#
vop_access {
IN struct vnode *vp;
IN int mode;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% getattr vp = = =
#
vop_getattr {
IN struct vnode *vp;
OUT struct vattr *vap;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% setattr vp L L L
#
vop_setattr {
IN struct vnode *vp;
IN struct vattr *vap;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% read vp L L L
#
vop_read {
IN struct vnode *vp;
INOUT struct uio *uio;
IN int ioflag;
IN struct ucred *cred;
};
#
#% write vp L L L
#
vop_write {
IN struct vnode *vp;
INOUT struct uio *uio;
IN int ioflag;
IN struct ucred *cred;
};
#
#% lease vp = = =
#
vop_lease {
IN struct vnode *vp;
IN struct proc *p;
IN struct ucred *cred;
IN int flag;
};
#
#% ioctl vp U U U
#
vop_ioctl {
IN struct vnode *vp;
IN u_long command;
IN caddr_t data;
IN int fflag;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% poll vp U U U
#
vop_poll {
IN struct vnode *vp;
IN int events;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% revoke vp U U U
#
vop_revoke {
IN struct vnode *vp;
IN int flags;
};
#
# XXX - not used
#
vop_mmap {
IN struct vnode *vp;
IN int fflags;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% fsync vp L L L
#
vop_fsync {
IN struct vnode *vp;
IN struct ucred *cred;
IN int waitfor;
IN struct proc *p;
};
#
#% remove dvp L L L
#% remove vp L L L
#
vop_remove {
IN struct vnode *dvp;
IN struct vnode *vp;
IN struct componentname *cnp;
};
#
#% link tdvp L L L
#% link vp U U U
#
vop_link {
IN struct vnode *tdvp;
IN struct vnode *vp;
IN struct componentname *cnp;
};
#
#% rename fdvp U U U
#% rename fvp U U U
#% rename tdvp L U U
#% rename tvp X U U
#
vop_rename {
IN WILLRELE struct vnode *fdvp;
IN WILLRELE struct vnode *fvp;
IN struct componentname *fcnp;
IN WILLRELE struct vnode *tdvp;
IN WILLRELE struct vnode *tvp;
IN struct componentname *tcnp;
};
#
#% mkdir dvp L L L
#% mkdir vpp - L -
#
vop_mkdir {
IN struct vnode *dvp;
OUT struct vnode **vpp;
IN struct componentname *cnp;
IN struct vattr *vap;
};
#
#% rmdir dvp L L L
#% rmdir vp L L L
#
vop_rmdir {
IN struct vnode *dvp;
IN struct vnode *vp;
IN struct componentname *cnp;
};
#
#% symlink dvp L L L
#% symlink vpp - U -
#
vop_symlink {
IN struct vnode *dvp;
OUT struct vnode **vpp;
IN struct componentname *cnp;
IN struct vattr *vap;
IN char *target;
};
#
#% readdir vp L L L
#
vop_readdir {
IN struct vnode *vp;
INOUT struct uio *uio;
IN struct ucred *cred;
INOUT int *eofflag;
OUT int *ncookies;
INOUT u_long **cookies;
};
#
#% readlink vp L L L
#
vop_readlink {
IN struct vnode *vp;
INOUT struct uio *uio;
IN struct ucred *cred;
};
#
#% inactive vp L U U
#
vop_inactive {
IN struct vnode *vp;
IN struct proc *p;
};
#
#% reclaim vp U U U
#
vop_reclaim {
IN struct vnode *vp;
IN struct proc *p;
};
#
#% lock vp ? ? ?
#
vop_lock {
IN struct vnode *vp;
IN int flags;
IN struct proc *p;
};
#
#% unlock vp L U L
#
vop_unlock {
IN struct vnode *vp;
IN int flags;
IN struct proc *p;
};
#
#% bmap vp L L L
#% bmap vpp - U -
#
vop_bmap {
IN struct vnode *vp;
IN daddr_t bn;
OUT struct vnode **vpp;
IN daddr_t *bnp;
OUT int *runp;
OUT int *runb;
};
#
#% strategy vp L L L
#
vop_strategy {
IN struct vnode *vp;
IN struct buf *bp;
};
#
#% getwritemount vp = = =
#
vop_getwritemount {
IN struct vnode *vp;
OUT struct mount **mpp;
};
#
#% copyonwrite vp L L L
#
vop_copyonwrite {
IN struct vnode *vp;
IN struct buf *bp;
};
#
#% print vp = = =
#
vop_print {
IN struct vnode *vp;
};
#
#% pathconf vp L L L
#
vop_pathconf {
IN struct vnode *vp;
IN int name;
OUT register_t *retval;
};
#
#% advlock vp U U U
#
vop_advlock {
IN struct vnode *vp;
IN caddr_t id;
IN int op;
IN struct flock *fl;
IN int flags;
};
#
#% balloc vp L L L
#
vop_balloc {
IN struct vnode *vp;
IN off_t startoffset;
IN int size;
IN struct ucred *cred;
IN int flags;
OUT struct buf **bpp;
};
#
#% reallocblks vp L L L
#
vop_reallocblks {
IN struct vnode *vp;
IN struct cluster_save *buflist;
};
#
#% getpages vp L L L
#
vop_getpages {
IN struct vnode *vp;
IN vm_page_t *m;
IN int count;
IN int reqpage;
IN vm_ooffset_t offset;
};
#
#% putpages vp L L L
#
vop_putpages {
IN struct vnode *vp;
IN vm_page_t *m;
IN int count;
IN int sync;
IN int *rtvals;
IN vm_ooffset_t offset;
};
#
#% freeblks vp - - -
#
# This call is used by the filesystem to release blocks back to
# device-driver. This is useful if the driver has a lengthy
# erase handling or similar.
#
vop_freeblks {
IN struct vnode *vp;
IN daddr_t addr;
IN daddr_t length;
};
#
#% bwrite vp L L L
#
vop_bwrite {
IN struct vnode *vp;
IN struct buf *bp;
};
#
#% getacl vp L L L
#
vop_getacl {
IN struct vnode *vp;
IN acl_type_t type;
OUT struct acl *aclp;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% setacl vp L L L
#
vop_setacl {
IN struct vnode *vp;
IN acl_type_t type;
IN struct acl *aclp;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% aclcheck vp = = =
#
vop_aclcheck {
IN struct vnode *vp;
IN acl_type_t type;
IN struct acl *aclp;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% getextattr vp L L L
#
vop_getextattr {
IN struct vnode *vp;
IN const char *name;
INOUT struct uio *uio;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% setextattr vp L L L
#
vop_setextattr {
IN struct vnode *vp;
IN const char *name;
INOUT struct uio *uio;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% createvobject vp L L L
#
vop_createvobject {
IN struct vnode *vp;
IN struct ucred *cred;
IN struct proc *p;
};
#
#% destroyvobject vp L L L
#
vop_destroyvobject {
IN struct vnode *vp;
};
#
#% getvobject vp L L L
#
vop_getvobject {
IN struct vnode *vp;
OUT struct vm_object **objpp;
};
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