717 lines
12 KiB
Plaintext
717 lines
12 KiB
Plaintext
#-
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# Copyright (c) 1992, 1993
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# The Regents of the University of California. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 4. Neither the name of the University nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# @(#)vnode_if.src 8.12 (Berkeley) 5/14/95
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# $FreeBSD$
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#
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#
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# Above each of the vop descriptors in lines starting with %%
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# is a specification of the locking protocol used by each vop call.
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# The first column is the name of the variable, the remaining three
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# columns are in, out and error respectively. The "in" column defines
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# the lock state on input, the "out" column defines the state on succesful
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# return, and the "error" column defines the locking state on error exit.
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#
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# The locking value can take the following values:
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# L: locked; not converted to type of lock.
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# A: any lock type.
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# S: locked with shared lock.
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# E: locked with exclusive lock for this process.
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# O: locked with exclusive lock for other process.
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# U: unlocked.
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# -: not applicable. vnode does not yet (or no longer) exists.
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# =: the same on input and output, may be either L or U.
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# X: locked if not nil.
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#
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# The paramater named "vpp" is assumed to be always used with double
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# indirection (**vpp) and that name is hard-coded in vnode_if.awk !
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#
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# Lines starting with %! specify a pre or post-condition function
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# to call before/after the vop call.
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#
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# If other such parameters are introduced, they have to be added to
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# the AWK script at the head of the definition of "add_debug_code()".
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#
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vop_islocked {
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IN struct vnode *vp;
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};
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%% lookup dvp L L L
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%% lookup vpp - L -
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# XXX - the lookup locking protocol defies simple description and depends
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# on the flags and operation fields in the (cnp) structure. Note
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# especially that *vpp may equal dvp and both may be locked.
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vop_lookup {
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IN struct vnode *dvp;
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INOUT struct vnode **vpp;
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IN struct componentname *cnp;
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};
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%% cachedlookup dvp L L L
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%% cachedlookup vpp - L -
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# This must be an exact copy of lookup. See kern/vfs_cache.c for details.
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vop_cachedlookup {
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IN struct vnode *dvp;
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INOUT struct vnode **vpp;
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IN struct componentname *cnp;
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};
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%% create dvp E E E
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%% create vpp - L -
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%! create post vop_create_post
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vop_create {
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IN struct vnode *dvp;
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OUT struct vnode **vpp;
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IN struct componentname *cnp;
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IN struct vattr *vap;
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};
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%% whiteout dvp E E E
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vop_whiteout {
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IN struct vnode *dvp;
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IN struct componentname *cnp;
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IN int flags;
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};
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%% mknod dvp E E E
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%% mknod vpp - L -
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%! mknod post vop_mknod_post
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vop_mknod {
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IN struct vnode *dvp;
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OUT struct vnode **vpp;
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IN struct componentname *cnp;
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IN struct vattr *vap;
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};
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%% open vp L L L
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vop_open {
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IN struct vnode *vp;
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IN int mode;
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IN struct ucred *cred;
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IN struct thread *td;
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IN struct file *fp;
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};
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%% close vp L L L
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vop_close {
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IN struct vnode *vp;
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IN int fflag;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% access vp L L L
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vop_access {
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IN struct vnode *vp;
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IN accmode_t accmode;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% accessx vp L L L
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vop_accessx {
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IN struct vnode *vp;
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IN accmode_t accmode;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% getattr vp L L L
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vop_getattr {
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IN struct vnode *vp;
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OUT struct vattr *vap;
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IN struct ucred *cred;
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};
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%% setattr vp E E E
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%! setattr post vop_setattr_post
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vop_setattr {
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IN struct vnode *vp;
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IN struct vattr *vap;
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IN struct ucred *cred;
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};
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%% markatime vp L L L
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vop_markatime {
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IN struct vnode *vp;
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};
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%% read vp L L L
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vop_read {
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IN struct vnode *vp;
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INOUT struct uio *uio;
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IN int ioflag;
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IN struct ucred *cred;
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};
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%% write vp L L L
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%! write pre VOP_WRITE_PRE
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%! write post VOP_WRITE_POST
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vop_write {
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IN struct vnode *vp;
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INOUT struct uio *uio;
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IN int ioflag;
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IN struct ucred *cred;
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};
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%% ioctl vp U U U
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vop_ioctl {
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IN struct vnode *vp;
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IN u_long command;
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IN void *data;
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IN int fflag;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% poll vp U U U
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vop_poll {
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IN struct vnode *vp;
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IN int events;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% kqfilter vp U U U
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vop_kqfilter {
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IN struct vnode *vp;
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IN struct knote *kn;
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};
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%% revoke vp L L L
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vop_revoke {
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IN struct vnode *vp;
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IN int flags;
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};
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%% fsync vp L L L
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vop_fsync {
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IN struct vnode *vp;
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IN int waitfor;
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IN struct thread *td;
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};
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%% remove dvp E E E
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%% remove vp E E E
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%! remove post vop_remove_post
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vop_remove {
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IN struct vnode *dvp;
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IN struct vnode *vp;
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IN struct componentname *cnp;
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};
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%% link tdvp E E E
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%% link vp E E E
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%! link post vop_link_post
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vop_link {
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IN struct vnode *tdvp;
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IN struct vnode *vp;
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IN struct componentname *cnp;
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};
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%! rename pre vop_rename_pre
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%! rename post vop_rename_post
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vop_rename {
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IN WILLRELE struct vnode *fdvp;
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IN WILLRELE struct vnode *fvp;
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IN struct componentname *fcnp;
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IN WILLRELE struct vnode *tdvp;
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IN WILLRELE struct vnode *tvp;
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IN struct componentname *tcnp;
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};
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%% mkdir dvp E E E
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%% mkdir vpp - E -
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%! mkdir post vop_mkdir_post
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vop_mkdir {
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IN struct vnode *dvp;
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OUT struct vnode **vpp;
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IN struct componentname *cnp;
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IN struct vattr *vap;
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};
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%% rmdir dvp E E E
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%% rmdir vp E E E
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%! rmdir post vop_rmdir_post
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vop_rmdir {
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IN struct vnode *dvp;
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IN struct vnode *vp;
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IN struct componentname *cnp;
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};
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%% symlink dvp E E E
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%% symlink vpp - E -
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%! symlink post vop_symlink_post
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vop_symlink {
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IN struct vnode *dvp;
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OUT struct vnode **vpp;
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IN struct componentname *cnp;
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IN struct vattr *vap;
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IN char *target;
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};
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%% readdir vp L L L
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vop_readdir {
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IN struct vnode *vp;
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INOUT struct uio *uio;
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IN struct ucred *cred;
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INOUT int *eofflag;
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OUT int *ncookies;
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INOUT u_long **cookies;
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};
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%% readlink vp L L L
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vop_readlink {
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IN struct vnode *vp;
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INOUT struct uio *uio;
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IN struct ucred *cred;
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};
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%% inactive vp E E E
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vop_inactive {
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IN struct vnode *vp;
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IN struct thread *td;
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};
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%% reclaim vp E E E
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vop_reclaim {
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IN struct vnode *vp;
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IN struct thread *td;
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};
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%! lock1 pre vop_lock_pre
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%! lock1 post vop_lock_post
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vop_lock1 {
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IN struct vnode *vp;
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IN int flags;
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IN char *file;
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IN int line;
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};
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%! unlock pre vop_unlock_pre
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%! unlock post vop_unlock_post
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vop_unlock {
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IN struct vnode *vp;
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IN int flags;
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};
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%% bmap vp L L L
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vop_bmap {
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IN struct vnode *vp;
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IN daddr_t bn;
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OUT struct bufobj **bop;
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IN daddr_t *bnp;
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OUT int *runp;
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OUT int *runb;
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};
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%% strategy vp L L L
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%! strategy pre vop_strategy_pre
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vop_strategy {
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IN struct vnode *vp;
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IN struct buf *bp;
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};
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%% getwritemount vp = = =
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vop_getwritemount {
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IN struct vnode *vp;
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OUT struct mount **mpp;
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};
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%% print vp - - -
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vop_print {
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IN struct vnode *vp;
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};
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%% pathconf vp L L L
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vop_pathconf {
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IN struct vnode *vp;
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IN int name;
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OUT register_t *retval;
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};
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%% advlock vp U U U
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vop_advlock {
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IN struct vnode *vp;
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IN void *id;
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IN int op;
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IN struct flock *fl;
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IN int flags;
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};
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%% advlockasync vp U U U
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vop_advlockasync {
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IN struct vnode *vp;
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IN void *id;
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IN int op;
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IN struct flock *fl;
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IN int flags;
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IN struct task *task;
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INOUT void **cookiep;
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};
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%% advlockpurge vp E E E
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vop_advlockpurge {
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IN struct vnode *vp;
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};
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%% reallocblks vp E E E
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vop_reallocblks {
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IN struct vnode *vp;
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IN struct cluster_save *buflist;
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};
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%% getpages vp L L L
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vop_getpages {
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IN struct vnode *vp;
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IN vm_page_t *m;
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IN int count;
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IN int reqpage;
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IN vm_ooffset_t offset;
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};
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%% putpages vp E E E
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vop_putpages {
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IN struct vnode *vp;
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IN vm_page_t *m;
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IN int count;
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IN int sync;
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IN int *rtvals;
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IN vm_ooffset_t offset;
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};
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%% getacl vp L L L
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vop_getacl {
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IN struct vnode *vp;
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IN acl_type_t type;
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OUT struct acl *aclp;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% setacl vp E E E
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vop_setacl {
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IN struct vnode *vp;
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IN acl_type_t type;
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IN struct acl *aclp;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% aclcheck vp = = =
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vop_aclcheck {
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IN struct vnode *vp;
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IN acl_type_t type;
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IN struct acl *aclp;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% closeextattr vp L L L
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vop_closeextattr {
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IN struct vnode *vp;
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IN int commit;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% getextattr vp L L L
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vop_getextattr {
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IN struct vnode *vp;
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IN int attrnamespace;
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IN const char *name;
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INOUT struct uio *uio;
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OUT size_t *size;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% listextattr vp L L L
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vop_listextattr {
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IN struct vnode *vp;
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IN int attrnamespace;
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INOUT struct uio *uio;
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OUT size_t *size;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% openextattr vp L L L
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vop_openextattr {
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IN struct vnode *vp;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% deleteextattr vp E E E
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%! deleteextattr post vop_deleteextattr_post
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vop_deleteextattr {
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IN struct vnode *vp;
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IN int attrnamespace;
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IN const char *name;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% setextattr vp E E E
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%! setextattr post vop_setextattr_post
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vop_setextattr {
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IN struct vnode *vp;
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IN int attrnamespace;
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IN const char *name;
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INOUT struct uio *uio;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% setlabel vp E E E
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vop_setlabel {
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IN struct vnode *vp;
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IN struct label *label;
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IN struct ucred *cred;
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IN struct thread *td;
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};
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%% vptofh vp = = =
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vop_vptofh {
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IN struct vnode *vp;
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IN struct fid *fhp;
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};
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%% vptocnp vp L L L
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%% vptocnp vpp - U -
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vop_vptocnp {
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IN struct vnode *vp;
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OUT struct vnode **vpp;
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IN struct ucred *cred;
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INOUT char *buf;
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INOUT int *buflen;
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};
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%% allocate vp E E E
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vop_allocate {
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IN struct vnode *vp;
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INOUT off_t *offset;
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INOUT off_t *len;
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};
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%% advise vp U U U
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vop_advise {
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IN struct vnode *vp;
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IN off_t start;
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IN off_t end;
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IN int advice;
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};
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%% unp_bind vp E E E
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vop_unp_bind {
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|
IN struct vnode *vp;
|
|
IN struct socket *socket;
|
|
};
|
|
|
|
%% unp_connect vp L L L
|
|
|
|
vop_unp_connect {
|
|
IN struct vnode *vp;
|
|
OUT struct socket **socket;
|
|
};
|
|
|
|
%% unp_detach vp = = =
|
|
|
|
vop_unp_detach {
|
|
IN struct vnode *vp;
|
|
};
|
|
|
|
%% is_text vp L L L
|
|
|
|
vop_is_text {
|
|
IN struct vnode *vp;
|
|
};
|
|
|
|
%% set_text vp E E E
|
|
|
|
vop_set_text {
|
|
IN struct vnode *vp;
|
|
};
|
|
|
|
%% vop_unset_text vp E E E
|
|
|
|
vop_unset_text {
|
|
IN struct vnode *vp;
|
|
};
|
|
|
|
%% get_writecount vp L L L
|
|
|
|
vop_get_writecount {
|
|
IN struct vnode *vp;
|
|
OUT int *writecount;
|
|
};
|
|
|
|
%% add_writecount vp E E E
|
|
|
|
vop_add_writecount {
|
|
IN struct vnode *vp;
|
|
IN int inc;
|
|
};
|
|
|
|
# The VOPs below are spares at the end of the table to allow new VOPs to be
|
|
# added in stable branches without breaking the KBI. New VOPs in HEAD should
|
|
# be added above these spares. When merging a new VOP to a stable branch,
|
|
# the new VOP should replace one of the spares.
|
|
|
|
vop_spare1 {
|
|
IN struct vnode *vp;
|
|
};
|
|
|
|
vop_spare2 {
|
|
IN struct vnode *vp;
|
|
};
|
|
|
|
vop_spare3 {
|
|
IN struct vnode *vp;
|
|
};
|
|
|
|
vop_spare4 {
|
|
IN struct vnode *vp;
|
|
};
|
|
|
|
vop_spare5 {
|
|
IN struct vnode *vp;
|
|
};
|