+++ /dev/null
-/*
- * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- */
-/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
-/*
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software donated to Berkeley by
- * Jan-Simon Pendry.
- *
- * 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.
- *
- * @(#)fdesc_vnops.c 8.17 (Berkeley) 5/22/95
- *
- */
-
-/*
- * /dev/fd Filesystem
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/proc_internal.h>
-#include <sys/kernel.h> /* boottime */
-#include <sys/resourcevar.h>
-#include <sys/filedesc.h>
-#include <sys/kauth.h>
-#include <sys/vnode_internal.h>
-#include <sys/malloc.h>
-#include <sys/file_internal.h>
-#include <sys/stat.h>
-#include <sys/mount_internal.h>
-#include <sys/namei.h>
-#include <sys/dirent.h>
-#include <sys/ubc.h>
-#include <sys/socketvar.h>
-#include <sys/pipe.h>
-#include <sys/uio_internal.h>
-#include <miscfs/fdesc/fdesc.h>
-#include <vfs/vfs_support.h>
-#include <pexpert/pexpert.h>
-
-/* XXX should be prototyped in header for here, kern_descrip.c */
-extern int soo_stat(struct socket *so, void *ub, int isstat64);
-
-#define FDL_WANT 0x01
-#define FDL_LOCKED 0x02
-static int fdcache_lock;
-
-
-#if (FD_STDIN != FD_STDOUT-1) || (FD_STDOUT != FD_STDERR-1)
-FD_STDIN, FD_STDOUT, FD_STDERR must be a sequence n, n+1, n+2
-#endif
-
-#define NFDCACHE 3
-
-#define FD_NHASH(ix) \
- (&fdhashtbl[(ix) & fdhash])
-LIST_HEAD(fdhashhead, fdescnode) *fdhashtbl;
-u_long fdhash;
-
-static int fdesc_attr(int fd, struct vnode_attr *vap, vfs_context_t a_context);
-
-
-/*
- * Initialise cache headers
- */
-int
-fdesc_init(__unused struct vfsconf *vfsp)
-{
-
- fdhashtbl = hashinit(NFDCACHE, M_CACHE, &fdhash);
-
- return( 0 );
-}
-
-int
-fdesc_allocvp(fdntype ftype, int ix, struct mount *mp, struct vnode **vpp,
- enum vtype vtype)
-{
- struct fdhashhead *fc;
- struct fdescnode *fd;
- int error = 0;
- int vid = 0;
- struct vnode_fsparam vfsp;
-
- fc = FD_NHASH(ix);
-loop:
- for (fd = fc->lh_first; fd != 0; fd = fd->fd_hash.le_next) {
- if (fd->fd_ix == ix && vnode_mount(fd->fd_vnode) == mp) {
- /*
- * doing a vnode_getwithvid isn't technically
- * necessary since fdesc is an unsafe filesystem
- * and we're running behind a funnel at this point
- * however, vnode_get always succeeds, which isn't
- * what we want if this vnode is in the process of
- * being terminated
- */
- vid = vnode_vid(fd->fd_vnode);
-
- if (vnode_getwithvid(fd->fd_vnode, vid))
- goto loop;
- *vpp = fd->fd_vnode;
- (*vpp)->v_type = vtype;
-
- return (error);
- }
- }
-
- /*
- * otherwise lock the array while we call getnewvnode
- * since that can block.
- */
- if (fdcache_lock & FDL_LOCKED) {
- fdcache_lock |= FDL_WANT;
- sleep((caddr_t) &fdcache_lock, PINOD);
- goto loop;
- }
- fdcache_lock |= FDL_LOCKED;
-
- MALLOC(fd, void *, sizeof(struct fdescnode), M_TEMP, M_WAITOK);
-
- vfsp.vnfs_mp = mp;
- vfsp.vnfs_vtype = vtype;
- vfsp.vnfs_str = "fdesc";
- vfsp.vnfs_dvp = NULL;
- vfsp.vnfs_fsnode = fd;
- vfsp.vnfs_cnp = NULL;
- vfsp.vnfs_vops = fdesc_vnodeop_p;
- vfsp.vnfs_rdev = 0;
- vfsp.vnfs_filesize = 0;
- vfsp.vnfs_flags = VNFS_NOCACHE | VNFS_CANTCACHE;
- vfsp.vnfs_marksystem = 0;
- if (ftype == Froot)
- vfsp.vnfs_markroot = 1;
- else
- vfsp.vnfs_markroot = 0;
-
- error = vnode_create(VNCREATE_FLAVOR, VCREATESIZE, &vfsp, vpp);
- if (error) {
- FREE(fd, M_TEMP);
- goto out;
- }
- (*vpp)->v_tag = VT_FDESC;
- fd->fd_vnode = *vpp;
- fd->fd_type = ftype;
- fd->fd_fd = -1;
- fd->fd_link = NULL;
- fd->fd_ix = ix;
- LIST_INSERT_HEAD(fc, fd, fd_hash);
-
-out:
- fdcache_lock &= ~FDL_LOCKED;
-
- if (fdcache_lock & FDL_WANT) {
- fdcache_lock &= ~FDL_WANT;
- wakeup((caddr_t) &fdcache_lock);
- }
-
- return (error);
-}
-
-/*
- * vp is the current namei directory
- * ndp is the name to locate in that directory...
- */
-int
-fdesc_lookup(struct vnop_lookup_args *ap)
-{
- struct vnode **vpp = ap->a_vpp;
- struct vnode *dvp = ap->a_dvp;
- struct componentname *cnp = ap->a_cnp;
- char *pname = cnp->cn_nameptr;
- struct proc *p = vfs_context_proc(ap->a_context);
- int numfiles = p->p_fd->fd_nfiles;
- int fd;
- int error;
- struct vnode *fvp;
- const char *ln;
-
- if (cnp->cn_namelen == 1 && *pname == '.') {
- *vpp = dvp;
-
- if ( (error = vnode_get(dvp)) ) {
- return(error);
- }
- return (0);
- }
-
- switch (VTOFDESC(dvp)->fd_type) {
- default:
- case Flink:
- case Fdesc:
- /* should never happen */
- error = ENOTDIR;
- goto bad;
-
- case Froot:
- if (cnp->cn_namelen == 2 && bcmp(pname, "fd", 2) == 0) {
- error = fdesc_allocvp(Fdevfd, FD_DEVFD, dvp->v_mount, &fvp, VDIR);
- if (error)
- goto bad;
- *vpp = fvp;
- return (0);
- }
-
- ln = NULL;
- switch (cnp->cn_namelen) {
- case 5:
- if (bcmp(pname, "stdin", 5) == 0) {
- ln = "fd/0";
- fd = FD_STDIN;
- }
- break;
- case 6:
- if (bcmp(pname, "stdout", 6) == 0) {
- ln = "fd/1";
- fd = FD_STDOUT;
- } else
- if (bcmp(pname, "stderr", 6) == 0) {
- ln = "fd/2";
- fd = FD_STDERR;
- }
- break;
- }
-
- if (ln) {
- error = fdesc_allocvp(Flink, fd, dvp->v_mount, &fvp, VLNK);
- if (error)
- goto bad;
- VTOFDESC(fvp)->fd_link = ln;
- *vpp = fvp;
- return (0);
- } else {
- error = ENOENT;
- goto bad;
- }
-
- /* FALL THROUGH */
-
- case Fdevfd:
- if (cnp->cn_namelen == 2 && bcmp(pname, "..", 2) == 0) {
- if ((error = fdesc_root(dvp->v_mount, vpp, ap->a_context)))
- goto bad;
- return (0);
- }
-
- fd = 0;
- while (*pname >= '0' && *pname <= '9') {
- fd = 10 * fd + *pname++ - '0';
- if (fd >= numfiles)
- break;
- }
-
- if (*pname != '\0') {
- error = ENOENT;
- goto bad;
- }
-
- if (fd < 0 || fd >= numfiles ||
- *fdfile(p, fd) == NULL ||
- (*fdflags(p, fd) & UF_RESERVED)) {
- error = EBADF;
- goto bad;
- }
-
- error = fdesc_allocvp(Fdesc, FD_DESC+fd, dvp->v_mount, &fvp, VNON);
- if (error)
- goto bad;
- VTOFDESC(fvp)->fd_fd = fd;
- *vpp = fvp;
- return (0);
- }
-
-bad:;
- *vpp = NULL;
- return (error);
-}
-
-int
-fdesc_open(struct vnop_open_args *ap)
-{
- struct vnode *vp = ap->a_vp;
- thread_t thr = vfs_context_thread(ap->a_context);
- uthread_t uu;
- int error = 0;
-
- if (thr == NULL)
- return (EINVAL);
-
- uu = get_bsdthread_info(thr);
-
- switch (VTOFDESC(vp)->fd_type) {
- case Fdesc:
- /*
- * XXX Kludge: set uu->uu_dupfd to contain the value of the
- * the file descriptor being sought for duplication. The error
- * return ensures that the vnode for this device will be
- * released by vn_open. Open will detect this special error and
- * take the actions in dupfdopen. Other callers of vn_open or
- * vnop_open will simply report the error.
- */
- uu->uu_dupfd = VTOFDESC(vp)->fd_fd; /* XXX */
- error = ENODEV;
- break;
- default: /* Froot / Fdevfd / Flink */
- break;
- }
-
- return (error);
-}
-
-static int
-fdesc_attr(int fd, struct vnode_attr *vap, vfs_context_t a_context)
-{
- struct fileproc *fp;
- struct proc *p = vfs_context_proc(a_context);
- struct stat stb;
- int error;
-
- if ((error = fp_lookup(p, fd, &fp, 0)))
- return (error);
- switch (fp->f_fglob->fg_type) {
- case DTYPE_VNODE:
- if((error = vnode_getwithref((struct vnode *) fp->f_fglob->fg_data)) != 0) {
- break;
- }
- if ((error = vnode_authorize((struct vnode *)fp->f_fglob->fg_data,
- NULL,
- KAUTH_VNODE_READ_ATTRIBUTES | KAUTH_VNODE_READ_SECURITY,
- a_context)) == 0)
- error = vnode_getattr((struct vnode *)fp->f_fglob->fg_data, vap, a_context);
- if (error == 0 && vap->va_type == VDIR) {
- /*
- * directories can cause loops in the namespace,
- * so turn off the 'x' bits to avoid trouble.
- *
- * XXX ACLs break this, of course
- */
- vap->va_mode &= ~((VEXEC)|(VEXEC>>3)|(VEXEC>>6));
- }
- (void)vnode_put((struct vnode *) fp->f_fglob->fg_data);
- break;
-
- case DTYPE_SOCKET:
- case DTYPE_PIPE:
-#if SOCKETS
- if (fp->f_fglob->fg_type == DTYPE_SOCKET)
- error = soo_stat((struct socket *)fp->f_fglob->fg_data, (void *)&stb, 0);
- else
-#endif /* SOCKETS */
- error = pipe_stat((struct pipe *)fp->f_fglob->fg_data, (void *)&stb, 0);
-
- if (error == 0) {
- if (fp->f_fglob->fg_type == DTYPE_SOCKET)
- VATTR_RETURN(vap, va_type, VSOCK);
- else
- VATTR_RETURN(vap, va_type, VFIFO);
-
- VATTR_RETURN(vap, va_mode, stb.st_mode);
- VATTR_RETURN(vap, va_nlink, stb.st_nlink);
- VATTR_RETURN(vap, va_uid, stb.st_uid);
- VATTR_RETURN(vap, va_gid, stb.st_gid);
- VATTR_RETURN(vap, va_fsid, stb.st_dev);
- VATTR_RETURN(vap, va_fileid, stb.st_ino);
- VATTR_RETURN(vap, va_data_size, stb.st_size);
- VATTR_RETURN(vap, va_access_time, stb.st_atimespec);
- VATTR_RETURN(vap, va_modify_time, stb.st_mtimespec);
- VATTR_RETURN(vap, va_change_time, stb.st_ctimespec);
- VATTR_RETURN(vap, va_gen, stb.st_gen);
- VATTR_RETURN(vap, va_flags, stb.st_flags);
- VATTR_RETURN(vap, va_rdev, stb.st_rdev);
- VATTR_RETURN(vap, va_total_alloc, stb.st_blocks * stb.st_blksize);
- VATTR_RETURN(vap, va_acl, NULL);
- }
- break;
-
- default:
- error = EBADF;
- }
-
- fp_drop(p, fd, fp, 0);
- return (error);
-}
-
-int
-fdesc_getattr(struct vnop_getattr_args *ap)
-{
- struct vnode *vp = ap->a_vp;
- struct vnode_attr *vap = ap->a_vap;
- unsigned fd;
- int error = 0;
- struct timespec ts;
-
- switch (VTOFDESC(vp)->fd_type) {
- case Froot:
- case Fdevfd:
- case Flink:
- VATTR_RETURN(vap, va_fileid, VTOFDESC(vp)->fd_ix);
- VATTR_RETURN(vap, va_uid, 0);
- VATTR_RETURN(vap, va_gid, 0);
- VATTR_RETURN(vap, va_fsid, vp->v_mount->mnt_vfsstat.f_fsid.val[0]);
- VATTR_RETURN(vap, va_iosize, DEV_BSIZE);
- ts.tv_sec = boottime_sec();
- ts.tv_nsec = 0;
- VATTR_RETURN(vap, va_access_time, ts);
- VATTR_RETURN(vap, va_modify_time, ts);
- VATTR_RETURN(vap, va_change_time, ts);
- VATTR_RETURN(vap, va_gen, 0);
- VATTR_RETURN(vap, va_flags, 0);
- VATTR_RETURN(vap, va_rdev, 0);
- VATTR_RETURN(vap, va_acl, NULL);
-
- switch (VTOFDESC(vp)->fd_type) {
- case Flink:
- VATTR_RETURN(vap, va_mode, S_IRUSR|S_IRGRP|S_IROTH);
- VATTR_RETURN(vap, va_type, VLNK); /* not strictly required */
- VATTR_RETURN(vap, va_nlink, 1);
- VATTR_RETURN(vap, va_data_size, strlen(VTOFDESC(vp)->fd_link));
- break;
-
- default:
- VATTR_RETURN(vap, va_mode, S_IRUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH);
- VATTR_RETURN(vap, va_type, VDIR);
- VATTR_RETURN(vap, va_nlink, 2);
- VATTR_RETURN(vap, va_data_size, DEV_BSIZE);
- break;
- }
- break;
-
- case Fdesc:
- fd = VTOFDESC(vp)->fd_fd;
- error = fdesc_attr(fd, vap, ap->a_context);
- break;
-
- default:
- return (EBADF);
- break;
- }
-
- if (error == 0) {
- vp->v_type = vap->va_type;
- }
-
- return (error);
-}
-
-int
-fdesc_setattr(struct vnop_setattr_args *ap)
-{
- struct fileproc *fp;
- unsigned fd;
- int error;
- struct proc * p = vfs_context_proc(ap->a_context);
-
- /*
- * Can't mess with the root vnode
- */
- switch (VTOFDESC(ap->a_vp)->fd_type) {
- case Fdesc:
- break;
-
- default:
- return (EACCES);
- }
-
- fd = VTOFDESC(ap->a_vp)->fd_fd;
- if ((error = fp_lookup(vfs_context_proc(ap->a_context), fd, &fp, 0)))
- return (error);
-
- /*
- * Can setattr the underlying vnode, but not sockets!
- */
- switch (fp->f_fglob->fg_type) {
- case DTYPE_VNODE:
- {
- if ((error = vnode_getwithref((struct vnode *) fp->f_fglob->fg_data)) != 0)
- break;
- error = vnode_setattr((struct vnode *) fp->f_fglob->fg_data, ap->a_vap, ap->a_context);
- (void)vnode_put((struct vnode *) fp->f_fglob->fg_data);
- break;
- }
-
- case DTYPE_SOCKET:
- case DTYPE_PIPE:
- error = 0;
- break;
-
- default:
- kprintf("fp->f_fglob->fg_type = %d\n", fp->f_fglob->fg_type);
- error = EBADF;
- break;
- }
-
- fp_drop(p, fd, fp, 0);
- return (error);
-}
-
-#define UIO_MX 16
-
-static struct dirtmp {
- u_long d_fileno;
- u_short d_reclen;
- u_short d_namlen;
- char d_name[8];
-} rootent[] = {
- { FD_DEVFD, UIO_MX, 2, "fd" },
- { FD_STDIN, UIO_MX, 5, "stdin" },
- { FD_STDOUT, UIO_MX, 6, "stdout" },
- { FD_STDERR, UIO_MX, 6, "stderr" },
- { 0, 0, 0, "" }
-};
-
-int
-fdesc_readdir(struct vnop_readdir_args *ap)
-{
- struct uio *uio = ap->a_uio;
- struct proc *p = current_proc();
- int i, error;
-
- /*
- * We don't allow exporting fdesc mounts, and currently local
- * requests do not need cookies.
- */
- if (ap->a_flags & (VNODE_READDIR_EXTENDED | VNODE_READDIR_REQSEEKOFF))
- return (EINVAL);
-
- switch (VTOFDESC(ap->a_vp)->fd_type) {
- case Fdesc:
- return (ENOTDIR);
-
- default:
- break;
- }
-
- if (VTOFDESC(ap->a_vp)->fd_type == Froot) {
- struct dirent d;
- struct dirent *dp = &d;
- struct dirtmp *dt;
- int fd;
-
- i = uio->uio_offset / UIO_MX;
- error = 0;
-
- while (uio_resid(uio) > 0) {
- dt = &rootent[i];
- if (dt->d_fileno == 0) {
- /**eofflagp = 1;*/
- break;
- }
- i++;
-
- switch (dt->d_fileno) {
- case FD_STDIN:
- case FD_STDOUT:
- case FD_STDERR:
- fd = dt->d_fileno - FD_STDIN;
- if (fd >= p->p_fd->fd_nfiles)
- continue;
- if (*fdfile(p, fd) == NULL &&
- !(*fdflags(p, fd) &
- UF_RESERVED))
- continue;
- break;
- }
- bzero((caddr_t) dp, UIO_MX);
- dp->d_fileno = dt->d_fileno;
- dp->d_namlen = dt->d_namlen;
- dp->d_type = DT_UNKNOWN;
- dp->d_reclen = dt->d_reclen;
- bcopy(dt->d_name, dp->d_name, dp->d_namlen+1);
- error = uiomove((caddr_t) dp, UIO_MX, uio);
- if (error)
- break;
- }
- uio->uio_offset = i * UIO_MX;
- return (error);
- }
-
- i = uio->uio_offset / UIO_MX;
- error = 0;
- while (uio_resid(uio) > 0) {
- if (i >= p->p_fd->fd_nfiles)
- break;
-
- if (*fdfile(p, i) != NULL && !(*fdflags(p, i) & UF_RESERVED)) {
- struct dirent d;
- struct dirent *dp = &d;
-
- bzero((caddr_t) dp, UIO_MX);
-
- dp->d_namlen = snprintf(dp->d_name, sizeof(dp->d_name),
- "%d", i);
- dp->d_reclen = UIO_MX;
- dp->d_type = DT_UNKNOWN;
- dp->d_fileno = i + FD_STDIN;
- /*
- * And ship to userland
- */
- error = uiomove((caddr_t) dp, UIO_MX, uio);
- if (error)
- break;
- }
- i++;
- }
-
- uio->uio_offset = i * UIO_MX;
- return (error);
-}
-
-int
-fdesc_readlink(struct vnop_readlink_args *ap)
-{
- struct vnode *vp = ap->a_vp;
- int error;
-
- if (vp->v_type != VLNK)
- return (EPERM);
-
- if (VTOFDESC(vp)->fd_type == Flink) {
- const char *ln = VTOFDESC(vp)->fd_link;
- error = uiomove(ln, strlen(ln), ap->a_uio);
- } else {
- error = ENOTSUP;
- }
-
- return (error);
-}
-
-int
-fdesc_read(__unused struct vnop_read_args *ap)
-{
-
- return (ENOTSUP);
-}
-
-int
-fdesc_write(__unused struct vnop_write_args *ap)
-{
- return (ENOTSUP);
-}
-
-int
-fdesc_ioctl(__unused struct vnop_ioctl_args *ap)
-{
- return (ENOTSUP);
-}
-
-int
-fdesc_select(__unused struct vnop_select_args *ap)
-{
- return (ENOTSUP);
-}
-
-int
-fdesc_inactive(struct vnop_inactive_args *ap)
-{
- struct vnode *vp = ap->a_vp;
-
- /*
- * Clear out the v_type field to avoid
- * nasty things happening in vgone().
- */
- vp->v_type = VNON;
- return (0);
-}
-
-int
-fdesc_reclaim(struct vnop_reclaim_args *ap)
-{
- struct vnode *vp = ap->a_vp;
- struct fdescnode *fd = VTOFDESC(vp);
-
- LIST_REMOVE(fd, fd_hash);
- FREE(vp->v_data, M_TEMP);
- vp->v_data = NULL;
-
- return (0);
-}
-
-/*
- * Return POSIX pathconf information applicable to special devices.
- */
-int
-fdesc_pathconf(struct vnop_pathconf_args *ap)
-{
-
- switch (ap->a_name) {
- case _PC_LINK_MAX:
- *ap->a_retval = LINK_MAX;
- return (0);
- case _PC_MAX_CANON:
- *ap->a_retval = MAX_CANON;
- return (0);
- case _PC_MAX_INPUT:
- *ap->a_retval = MAX_INPUT;
- return (0);
- case _PC_PIPE_BUF:
- *ap->a_retval = PIPE_BUF;
- return (0);
- case _PC_CHOWN_RESTRICTED:
- *ap->a_retval = 200112; /* _POSIX_CHOWN_RESTRICTED */
- return (0);
- case _PC_VDISABLE:
- *ap->a_retval = _POSIX_VDISABLE;
- return (0);
- default:
- return (EINVAL);
- }
- /* NOTREACHED */
-}
-
-/*
- * /dev/fd "should never get here" operation
- */
-int
-fdesc_badop(void)
-{
-
- return (ENOTSUP);
- /* NOTREACHED */
-}
-
-#define VOPFUNC int (*)(void *)
-
-#define fdesc_create (int (*) (struct vnop_create_args *))eopnotsupp
-#define fdesc_mknod (int (*) (struct vnop_mknod_args *))eopnotsupp
-#define fdesc_close (int (*) (struct vnop_close_args *))nullop
-#define fdesc_access (int (*) (struct vnop_access_args *))nullop
-#define fdesc_mmap (int (*) (struct vnop_mmap_args *))eopnotsupp
-#define fdesc_revoke nop_revoke
-#define fdesc_fsync (int (*) (struct vnop_fsync_args *))nullop
-#define fdesc_remove (int (*) (struct vnop_remove_args *))eopnotsupp
-#define fdesc_link (int (*) (struct vnop_link_args *))eopnotsupp
-#define fdesc_rename (int (*) (struct vnop_rename_args *))eopnotsupp
-#define fdesc_mkdir (int (*) (struct vnop_mkdir_args *))eopnotsupp
-#define fdesc_rmdir (int (*) (struct vnop_rmdir_args *))eopnotsupp
-#define fdesc_symlink (int (*) (struct vnop_symlink_args *))eopnotsupp
-#define fdesc_strategy (int (*) (struct vnop_strategy_args *))fdesc_badop
-#define fdesc_advlock (int (*) (struct vnop_advlock_args *))eopnotsupp
-#define fdesc_bwrite (int (*) (struct vnop_bwrite_args *))eopnotsupp
-#define fdesc_blktooff (int (*) (struct vnop_blktooff_args *))eopnotsupp
-#define fdesc_offtoblk (int (*) (struct vnop_offtoblk_args *))eopnotsupp
-#define fdesc_blockmap (int (*) (struct vnop_blockmap_args *))eopnotsupp
-
-int (**fdesc_vnodeop_p)(void *);
-struct vnodeopv_entry_desc fdesc_vnodeop_entries[] = {
- { &vnop_default_desc, (VOPFUNC)vn_default_error },
- { &vnop_lookup_desc, (VOPFUNC)fdesc_lookup }, /* lookup */
- { &vnop_create_desc, (VOPFUNC)fdesc_create }, /* create */
- { &vnop_mknod_desc, (VOPFUNC)fdesc_mknod }, /* mknod */
- { &vnop_open_desc, (VOPFUNC)fdesc_open }, /* open */
- { &vnop_close_desc, (VOPFUNC)fdesc_close }, /* close */
- { &vnop_access_desc, (VOPFUNC)fdesc_access }, /* access */
- { &vnop_getattr_desc, (VOPFUNC)fdesc_getattr }, /* getattr */
- { &vnop_setattr_desc, (VOPFUNC)fdesc_setattr }, /* setattr */
- { &vnop_read_desc, (VOPFUNC)fdesc_read }, /* read */
- { &vnop_write_desc, (VOPFUNC)fdesc_write }, /* write */
- { &vnop_ioctl_desc, (VOPFUNC)fdesc_ioctl }, /* ioctl */
- { &vnop_select_desc, (VOPFUNC)fdesc_select }, /* select */
- { &vnop_revoke_desc, (VOPFUNC)fdesc_revoke }, /* revoke */
- { &vnop_mmap_desc, (VOPFUNC)fdesc_mmap }, /* mmap */
- { &vnop_fsync_desc, (VOPFUNC)fdesc_fsync }, /* fsync */
- { &vnop_remove_desc, (VOPFUNC)fdesc_remove }, /* remove */
- { &vnop_link_desc, (VOPFUNC)fdesc_link }, /* link */
- { &vnop_rename_desc, (VOPFUNC)fdesc_rename }, /* rename */
- { &vnop_mkdir_desc, (VOPFUNC)fdesc_mkdir }, /* mkdir */
- { &vnop_rmdir_desc, (VOPFUNC)fdesc_rmdir }, /* rmdir */
- { &vnop_symlink_desc, (VOPFUNC)fdesc_symlink }, /* symlink */
- { &vnop_readdir_desc, (VOPFUNC)fdesc_readdir }, /* readdir */
- { &vnop_readlink_desc, (VOPFUNC)fdesc_readlink },/* readlink */
- { &vnop_inactive_desc, (VOPFUNC)fdesc_inactive },/* inactive */
- { &vnop_reclaim_desc, (VOPFUNC)fdesc_reclaim }, /* reclaim */
- { &vnop_strategy_desc, (VOPFUNC)fdesc_strategy }, /* strategy */
- { &vnop_pathconf_desc, (VOPFUNC)fdesc_pathconf }, /* pathconf */
- { &vnop_advlock_desc, (VOPFUNC)fdesc_advlock }, /* advlock */
- { &vnop_bwrite_desc, (VOPFUNC)fdesc_bwrite }, /* bwrite */
- { &vnop_pagein_desc, (VOPFUNC)err_pagein }, /* pagein */
- { &vnop_pageout_desc, (VOPFUNC)err_pageout }, /* pageout */
- { &vnop_copyfile_desc, (VOPFUNC)err_copyfile }, /* Copyfile */
- { &vnop_blktooff_desc, (VOPFUNC)fdesc_blktooff }, /* blktooff */
- { &vnop_blktooff_desc, (VOPFUNC)fdesc_offtoblk }, /* offtoblk */
- { &vnop_blockmap_desc, (VOPFUNC)fdesc_blockmap }, /* blockmap */
- { (struct vnodeop_desc*)NULL, (VOPFUNC)NULL }
-};
-struct vnodeopv_desc fdesc_vnodeop_opv_desc =
- { &fdesc_vnodeop_p, fdesc_vnodeop_entries };
projects / apple / xnu.git / blobdiff