d2b2128a28
via the Linux tool.
- Add Linux shim to ipmi(4)
- Create a partitions file to linprocfs to make Linux fdisk see
disks. This file is dynamic so we can see disks come and go.
- Convert msdosfs to vfat in mtab since Linux uses that for
msdosfs.
- In the Linux mount path convert vfat passed in to msdosfs
so Linux mount works on FreeBSD. Note that tasting works
so that if da0 is a msdos file system
/compat/linux/bin/mount /dev/da0 /mnt
works.
- fix a 64it bug for l_off_t.
Grabing sh, mount, fdisk, df from Linux, creating a symlink of mtab to
/compat/linux/etc/mtab and then some careful unpacking of the Linux bmc
update tool and hacking makes it work on newer Dell boxes. Note, probably
if you can't figure out how to do this, then you probably shouldn't be
doing it :-)
1536 lines
35 KiB
C
1536 lines
35 KiB
C
/*-
|
|
* Copyright (c) 1994-1995 Søren Schmidt
|
|
* 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
|
|
* in this position and unchanged.
|
|
* 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. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_compat.h"
|
|
#include "opt_mac.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/dirent.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/file.h>
|
|
#include <sys/filedesc.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/namei.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/sx.h>
|
|
#include <sys/syscallsubr.h>
|
|
#include <sys/sysproto.h>
|
|
#include <sys/tty.h>
|
|
#include <sys/unistd.h>
|
|
#include <sys/vnode.h>
|
|
|
|
#include <security/mac/mac_framework.h>
|
|
|
|
#include <ufs/ufs/extattr.h>
|
|
#include <ufs/ufs/quota.h>
|
|
#include <ufs/ufs/ufsmount.h>
|
|
|
|
#ifdef COMPAT_LINUX32
|
|
#include <machine/../linux32/linux.h>
|
|
#include <machine/../linux32/linux32_proto.h>
|
|
#else
|
|
#include <machine/../linux/linux.h>
|
|
#include <machine/../linux/linux_proto.h>
|
|
#endif
|
|
#include <compat/linux/linux_util.h>
|
|
#include <compat/linux/linux_file.h>
|
|
|
|
int
|
|
linux_creat(struct thread *td, struct linux_creat_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(creat))
|
|
printf(ARGS(creat, "%s, %d"), path, args->mode);
|
|
#endif
|
|
error = kern_open(td, path, UIO_SYSSPACE, O_WRONLY | O_CREAT | O_TRUNC,
|
|
args->mode);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
|
|
static int
|
|
linux_common_open(struct thread *td, int dirfd, char *path, int l_flags, int mode)
|
|
{
|
|
struct proc *p = td->td_proc;
|
|
struct file *fp;
|
|
int fd;
|
|
int bsd_flags, error;
|
|
|
|
bsd_flags = 0;
|
|
switch (l_flags & LINUX_O_ACCMODE) {
|
|
case LINUX_O_WRONLY:
|
|
bsd_flags |= O_WRONLY;
|
|
break;
|
|
case LINUX_O_RDWR:
|
|
bsd_flags |= O_RDWR;
|
|
break;
|
|
default:
|
|
bsd_flags |= O_RDONLY;
|
|
}
|
|
if (l_flags & LINUX_O_NDELAY)
|
|
bsd_flags |= O_NONBLOCK;
|
|
if (l_flags & LINUX_O_APPEND)
|
|
bsd_flags |= O_APPEND;
|
|
if (l_flags & LINUX_O_SYNC)
|
|
bsd_flags |= O_FSYNC;
|
|
if (l_flags & LINUX_O_NONBLOCK)
|
|
bsd_flags |= O_NONBLOCK;
|
|
if (l_flags & LINUX_FASYNC)
|
|
bsd_flags |= O_ASYNC;
|
|
if (l_flags & LINUX_O_CREAT)
|
|
bsd_flags |= O_CREAT;
|
|
if (l_flags & LINUX_O_TRUNC)
|
|
bsd_flags |= O_TRUNC;
|
|
if (l_flags & LINUX_O_EXCL)
|
|
bsd_flags |= O_EXCL;
|
|
if (l_flags & LINUX_O_NOCTTY)
|
|
bsd_flags |= O_NOCTTY;
|
|
if (l_flags & LINUX_O_DIRECT)
|
|
bsd_flags |= O_DIRECT;
|
|
if (l_flags & LINUX_O_NOFOLLOW)
|
|
bsd_flags |= O_NOFOLLOW;
|
|
/* XXX LINUX_O_NOATIME: unable to be easily implemented. */
|
|
|
|
error = kern_openat(td, dirfd, path, UIO_SYSSPACE, bsd_flags, mode);
|
|
|
|
if (!error) {
|
|
fd = td->td_retval[0];
|
|
/*
|
|
* XXX In between kern_open() and fget(), another process
|
|
* having the same filedesc could use that fd without
|
|
* checking below.
|
|
*/
|
|
error = fget(td, fd, &fp);
|
|
if (!error) {
|
|
sx_slock(&proctree_lock);
|
|
PROC_LOCK(p);
|
|
if (!(bsd_flags & O_NOCTTY) &&
|
|
SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
|
|
PROC_UNLOCK(p);
|
|
sx_unlock(&proctree_lock);
|
|
if (fp->f_type == DTYPE_VNODE)
|
|
(void) fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0,
|
|
td->td_ucred, td);
|
|
} else {
|
|
PROC_UNLOCK(p);
|
|
sx_sunlock(&proctree_lock);
|
|
}
|
|
if (l_flags & LINUX_O_DIRECTORY) {
|
|
if (fp->f_type != DTYPE_VNODE ||
|
|
fp->f_vnode->v_type != VDIR) {
|
|
error = ENOTDIR;
|
|
}
|
|
}
|
|
fdrop(fp, td);
|
|
/*
|
|
* XXX as above, fdrop()/kern_close() pair is racy.
|
|
*/
|
|
if (error)
|
|
kern_close(td, fd);
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(open))
|
|
printf(LMSG("open returns error %d"), error);
|
|
#endif
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_openat(struct thread *td, struct linux_openat_args *args)
|
|
{
|
|
char *path;
|
|
int dfd;
|
|
|
|
dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
|
|
if (args->flags & LINUX_O_CREAT)
|
|
LCONVPATH_AT(td, args->filename, &path, 1, dfd);
|
|
else
|
|
LCONVPATH_AT(td, args->filename, &path, 0, dfd);
|
|
#ifdef DEBUG
|
|
if (ldebug(openat))
|
|
printf(ARGS(openat, "%i, %s, 0x%x, 0x%x"), args->dfd,
|
|
path, args->flags, args->mode);
|
|
#endif
|
|
return (linux_common_open(td, dfd, path, args->flags, args->mode));
|
|
}
|
|
|
|
int
|
|
linux_open(struct thread *td, struct linux_open_args *args)
|
|
{
|
|
char *path;
|
|
|
|
if (args->flags & LINUX_O_CREAT)
|
|
LCONVPATHCREAT(td, args->path, &path);
|
|
else
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(open))
|
|
printf(ARGS(open, "%s, 0x%x, 0x%x"),
|
|
path, args->flags, args->mode);
|
|
#endif
|
|
|
|
return (linux_common_open(td, AT_FDCWD, path, args->flags, args->mode));
|
|
}
|
|
|
|
int
|
|
linux_lseek(struct thread *td, struct linux_lseek_args *args)
|
|
{
|
|
|
|
struct lseek_args /* {
|
|
int fd;
|
|
int pad;
|
|
off_t offset;
|
|
int whence;
|
|
} */ tmp_args;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(lseek))
|
|
printf(ARGS(lseek, "%d, %ld, %d"),
|
|
args->fdes, (long)args->off, args->whence);
|
|
#endif
|
|
tmp_args.fd = args->fdes;
|
|
tmp_args.offset = (off_t)args->off;
|
|
tmp_args.whence = args->whence;
|
|
error = lseek(td, &tmp_args);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
linux_llseek(struct thread *td, struct linux_llseek_args *args)
|
|
{
|
|
struct lseek_args bsd_args;
|
|
int error;
|
|
off_t off;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(llseek))
|
|
printf(ARGS(llseek, "%d, %d:%d, %d"),
|
|
args->fd, args->ohigh, args->olow, args->whence);
|
|
#endif
|
|
off = (args->olow) | (((off_t) args->ohigh) << 32);
|
|
|
|
bsd_args.fd = args->fd;
|
|
bsd_args.offset = off;
|
|
bsd_args.whence = args->whence;
|
|
|
|
if ((error = lseek(td, &bsd_args)))
|
|
return error;
|
|
|
|
if ((error = copyout(td->td_retval, args->res, sizeof (off_t))))
|
|
return error;
|
|
|
|
td->td_retval[0] = 0;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
linux_readdir(struct thread *td, struct linux_readdir_args *args)
|
|
{
|
|
struct linux_getdents_args lda;
|
|
|
|
lda.fd = args->fd;
|
|
lda.dent = args->dent;
|
|
lda.count = 1;
|
|
return linux_getdents(td, &lda);
|
|
}
|
|
|
|
/*
|
|
* Note that linux_getdents(2) and linux_getdents64(2) have the same
|
|
* arguments. They only differ in the definition of struct dirent they
|
|
* operate on. We use this to common the code, with the exception of
|
|
* accessing struct dirent. Note that linux_readdir(2) is implemented
|
|
* by means of linux_getdents(2). In this case we never operate on
|
|
* struct dirent64 and thus don't need to handle it...
|
|
*/
|
|
|
|
struct l_dirent {
|
|
l_ulong d_ino;
|
|
l_off_t d_off;
|
|
l_ushort d_reclen;
|
|
char d_name[LINUX_NAME_MAX + 1];
|
|
};
|
|
|
|
struct l_dirent64 {
|
|
uint64_t d_ino;
|
|
int64_t d_off;
|
|
l_ushort d_reclen;
|
|
u_char d_type;
|
|
char d_name[LINUX_NAME_MAX + 1];
|
|
};
|
|
|
|
/*
|
|
* Linux uses the last byte in the dirent buffer to store d_type,
|
|
* at least glibc-2.7 requires it. That is why l_dirent is padded with 2 bytes.
|
|
*/
|
|
#define LINUX_RECLEN(namlen) \
|
|
roundup((offsetof(struct l_dirent, d_name) + (namlen) + 2), \
|
|
sizeof(l_ulong))
|
|
|
|
#define LINUX_RECLEN64(namlen) \
|
|
roundup((offsetof(struct l_dirent64, d_name) + (namlen) + 1), \
|
|
sizeof(uint64_t))
|
|
|
|
#define LINUX_MAXRECLEN max(LINUX_RECLEN(LINUX_NAME_MAX), \
|
|
LINUX_RECLEN64(LINUX_NAME_MAX))
|
|
#define LINUX_DIRBLKSIZ 512
|
|
|
|
static int
|
|
getdents_common(struct thread *td, struct linux_getdents64_args *args,
|
|
int is64bit)
|
|
{
|
|
struct dirent *bdp;
|
|
struct vnode *vp;
|
|
caddr_t inp, buf; /* BSD-format */
|
|
int len, reclen; /* BSD-format */
|
|
caddr_t outp; /* Linux-format */
|
|
int resid, linuxreclen=0; /* Linux-format */
|
|
caddr_t lbuf; /* Linux-format */
|
|
struct file *fp;
|
|
struct uio auio;
|
|
struct iovec aiov;
|
|
off_t off;
|
|
struct l_dirent *linux_dirent;
|
|
struct l_dirent64 *linux_dirent64;
|
|
int buflen, error, eofflag, nbytes, justone;
|
|
u_long *cookies = NULL, *cookiep;
|
|
int ncookies, vfslocked;
|
|
|
|
nbytes = args->count;
|
|
if (nbytes == 1) {
|
|
/* readdir(2) case. Always struct dirent. */
|
|
if (is64bit)
|
|
return (EINVAL);
|
|
nbytes = sizeof(*linux_dirent);
|
|
justone = 1;
|
|
} else
|
|
justone = 0;
|
|
|
|
if ((error = getvnode(td->td_proc->p_fd, args->fd, &fp)) != 0)
|
|
return (error);
|
|
|
|
if ((fp->f_flag & FREAD) == 0) {
|
|
fdrop(fp, td);
|
|
return (EBADF);
|
|
}
|
|
|
|
vp = fp->f_vnode;
|
|
vfslocked = VFS_LOCK_GIANT(vp->v_mount);
|
|
if (vp->v_type != VDIR) {
|
|
VFS_UNLOCK_GIANT(vfslocked);
|
|
fdrop(fp, td);
|
|
return (EINVAL);
|
|
}
|
|
|
|
off = fp->f_offset;
|
|
|
|
buflen = max(LINUX_DIRBLKSIZ, nbytes);
|
|
buflen = min(buflen, MAXBSIZE);
|
|
buf = malloc(buflen, M_TEMP, M_WAITOK);
|
|
lbuf = malloc(LINUX_MAXRECLEN, M_TEMP, M_WAITOK | M_ZERO);
|
|
vn_lock(vp, LK_SHARED | LK_RETRY);
|
|
|
|
again:
|
|
aiov.iov_base = buf;
|
|
aiov.iov_len = buflen;
|
|
auio.uio_iov = &aiov;
|
|
auio.uio_iovcnt = 1;
|
|
auio.uio_rw = UIO_READ;
|
|
auio.uio_segflg = UIO_SYSSPACE;
|
|
auio.uio_td = td;
|
|
auio.uio_resid = buflen;
|
|
auio.uio_offset = off;
|
|
|
|
if (cookies) {
|
|
free(cookies, M_TEMP);
|
|
cookies = NULL;
|
|
}
|
|
|
|
#ifdef MAC
|
|
/*
|
|
* Do directory search MAC check using non-cached credentials.
|
|
*/
|
|
if ((error = mac_vnode_check_readdir(td->td_ucred, vp)))
|
|
goto out;
|
|
#endif /* MAC */
|
|
if ((error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies,
|
|
&cookies)))
|
|
goto out;
|
|
|
|
inp = buf;
|
|
outp = (caddr_t)args->dirent;
|
|
resid = nbytes;
|
|
if ((len = buflen - auio.uio_resid) <= 0)
|
|
goto eof;
|
|
|
|
cookiep = cookies;
|
|
|
|
if (cookies) {
|
|
/*
|
|
* When using cookies, the vfs has the option of reading from
|
|
* a different offset than that supplied (UFS truncates the
|
|
* offset to a block boundary to make sure that it never reads
|
|
* partway through a directory entry, even if the directory
|
|
* has been compacted).
|
|
*/
|
|
while (len > 0 && ncookies > 0 && *cookiep <= off) {
|
|
bdp = (struct dirent *) inp;
|
|
len -= bdp->d_reclen;
|
|
inp += bdp->d_reclen;
|
|
cookiep++;
|
|
ncookies--;
|
|
}
|
|
}
|
|
|
|
while (len > 0) {
|
|
if (cookiep && ncookies == 0)
|
|
break;
|
|
bdp = (struct dirent *) inp;
|
|
reclen = bdp->d_reclen;
|
|
if (reclen & 3) {
|
|
error = EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
if (bdp->d_fileno == 0) {
|
|
inp += reclen;
|
|
if (cookiep) {
|
|
off = *cookiep++;
|
|
ncookies--;
|
|
} else
|
|
off += reclen;
|
|
|
|
len -= reclen;
|
|
continue;
|
|
}
|
|
|
|
linuxreclen = (is64bit)
|
|
? LINUX_RECLEN64(bdp->d_namlen)
|
|
: LINUX_RECLEN(bdp->d_namlen);
|
|
|
|
if (reclen > len || resid < linuxreclen) {
|
|
outp++;
|
|
break;
|
|
}
|
|
|
|
if (justone) {
|
|
/* readdir(2) case. */
|
|
linux_dirent = (struct l_dirent*)lbuf;
|
|
linux_dirent->d_ino = bdp->d_fileno;
|
|
linux_dirent->d_off = (l_off_t)linuxreclen;
|
|
linux_dirent->d_reclen = (l_ushort)bdp->d_namlen;
|
|
strlcpy(linux_dirent->d_name, bdp->d_name,
|
|
linuxreclen - offsetof(struct l_dirent, d_name));
|
|
error = copyout(linux_dirent, outp, linuxreclen);
|
|
}
|
|
if (is64bit) {
|
|
linux_dirent64 = (struct l_dirent64*)lbuf;
|
|
linux_dirent64->d_ino = bdp->d_fileno;
|
|
linux_dirent64->d_off = (cookiep)
|
|
? (l_off_t)*cookiep
|
|
: (l_off_t)(off + reclen);
|
|
linux_dirent64->d_reclen = (l_ushort)linuxreclen;
|
|
linux_dirent64->d_type = bdp->d_type;
|
|
strlcpy(linux_dirent64->d_name, bdp->d_name,
|
|
linuxreclen - offsetof(struct l_dirent64, d_name));
|
|
error = copyout(linux_dirent64, outp, linuxreclen);
|
|
} else if (!justone) {
|
|
linux_dirent = (struct l_dirent*)lbuf;
|
|
linux_dirent->d_ino = bdp->d_fileno;
|
|
linux_dirent->d_off = (cookiep)
|
|
? (l_off_t)*cookiep
|
|
: (l_off_t)(off + reclen);
|
|
linux_dirent->d_reclen = (l_ushort)linuxreclen;
|
|
/*
|
|
* Copy d_type to last byte of l_dirent buffer
|
|
*/
|
|
lbuf[linuxreclen-1] = bdp->d_type;
|
|
strlcpy(linux_dirent->d_name, bdp->d_name,
|
|
linuxreclen - offsetof(struct l_dirent, d_name)-1);
|
|
error = copyout(linux_dirent, outp, linuxreclen);
|
|
}
|
|
|
|
if (error)
|
|
goto out;
|
|
|
|
inp += reclen;
|
|
if (cookiep) {
|
|
off = *cookiep++;
|
|
ncookies--;
|
|
} else
|
|
off += reclen;
|
|
|
|
outp += linuxreclen;
|
|
resid -= linuxreclen;
|
|
len -= reclen;
|
|
if (justone)
|
|
break;
|
|
}
|
|
|
|
if (outp == (caddr_t)args->dirent)
|
|
goto again;
|
|
|
|
fp->f_offset = off;
|
|
if (justone)
|
|
nbytes = resid + linuxreclen;
|
|
|
|
eof:
|
|
td->td_retval[0] = nbytes - resid;
|
|
|
|
out:
|
|
if (cookies)
|
|
free(cookies, M_TEMP);
|
|
|
|
VOP_UNLOCK(vp, 0);
|
|
VFS_UNLOCK_GIANT(vfslocked);
|
|
fdrop(fp, td);
|
|
free(buf, M_TEMP);
|
|
free(lbuf, M_TEMP);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_getdents(struct thread *td, struct linux_getdents_args *args)
|
|
{
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(getdents))
|
|
printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count);
|
|
#endif
|
|
|
|
return (getdents_common(td, (struct linux_getdents64_args*)args, 0));
|
|
}
|
|
|
|
int
|
|
linux_getdents64(struct thread *td, struct linux_getdents64_args *args)
|
|
{
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(getdents64))
|
|
printf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count);
|
|
#endif
|
|
|
|
return (getdents_common(td, args, 1));
|
|
}
|
|
|
|
/*
|
|
* These exist mainly for hooks for doing /compat/linux translation.
|
|
*/
|
|
|
|
int
|
|
linux_access(struct thread *td, struct linux_access_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
/* linux convention */
|
|
if (args->flags & ~(F_OK | X_OK | W_OK | R_OK))
|
|
return (EINVAL);
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(access))
|
|
printf(ARGS(access, "%s, %d"), path, args->flags);
|
|
#endif
|
|
error = kern_access(td, path, UIO_SYSSPACE, args->flags);
|
|
LFREEPATH(path);
|
|
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_faccessat(struct thread *td, struct linux_faccessat_args *args)
|
|
{
|
|
char *path;
|
|
int error, dfd;
|
|
|
|
/* linux convention */
|
|
if (args->mode & ~(F_OK | X_OK | W_OK | R_OK))
|
|
return (EINVAL);
|
|
|
|
dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
|
|
LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(access))
|
|
printf(ARGS(access, "%s, %d"), path, args->mode);
|
|
#endif
|
|
|
|
error = kern_accessat(td, dfd, path, UIO_SYSSPACE, 0 /* XXX */,
|
|
args->mode);
|
|
LFREEPATH(path);
|
|
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_unlink(struct thread *td, struct linux_unlink_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
struct stat st;
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(unlink))
|
|
printf(ARGS(unlink, "%s"), path);
|
|
#endif
|
|
|
|
error = kern_unlink(td, path, UIO_SYSSPACE);
|
|
if (error == EPERM)
|
|
/* Introduce POSIX noncompliant behaviour of Linux */
|
|
if (kern_stat(td, path, UIO_SYSSPACE, &st) == 0)
|
|
if (S_ISDIR(st.st_mode))
|
|
error = EISDIR;
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_unlinkat(struct thread *td, struct linux_unlinkat_args *args)
|
|
{
|
|
char *path;
|
|
int error, dfd;
|
|
struct stat st;
|
|
|
|
if (args->flag & ~LINUX_AT_REMOVEDIR)
|
|
return (EINVAL);
|
|
|
|
dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
|
|
LCONVPATHEXIST_AT(td, args->pathname, &path, dfd);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(unlinkat))
|
|
printf(ARGS(unlinkat, "%s"), path);
|
|
#endif
|
|
|
|
if (args->flag & LINUX_AT_REMOVEDIR)
|
|
error = kern_rmdirat(td, dfd, path, UIO_SYSSPACE);
|
|
else
|
|
error = kern_unlinkat(td, dfd, path, UIO_SYSSPACE);
|
|
if (error == EPERM && !(args->flag & LINUX_AT_REMOVEDIR)) {
|
|
/* Introduce POSIX noncompliant behaviour of Linux */
|
|
if (kern_statat(td, AT_SYMLINK_NOFOLLOW, dfd, path,
|
|
UIO_SYSSPACE, &st) == 0 && S_ISDIR(st.st_mode))
|
|
error = EISDIR;
|
|
}
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
int
|
|
linux_chdir(struct thread *td, struct linux_chdir_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(chdir))
|
|
printf(ARGS(chdir, "%s"), path);
|
|
#endif
|
|
error = kern_chdir(td, path, UIO_SYSSPACE);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_chmod(struct thread *td, struct linux_chmod_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(chmod))
|
|
printf(ARGS(chmod, "%s, %d"), path, args->mode);
|
|
#endif
|
|
error = kern_chmod(td, path, UIO_SYSSPACE, args->mode);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_fchmodat(struct thread *td, struct linux_fchmodat_args *args)
|
|
{
|
|
char *path;
|
|
int error, dfd;
|
|
|
|
dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
|
|
LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(fchmodat))
|
|
printf(ARGS(fchmodat, "%s, %d"), path, args->mode);
|
|
#endif
|
|
|
|
error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_mkdir(struct thread *td, struct linux_mkdir_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
LCONVPATHCREAT(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(mkdir))
|
|
printf(ARGS(mkdir, "%s, %d"), path, args->mode);
|
|
#endif
|
|
error = kern_mkdir(td, path, UIO_SYSSPACE, args->mode);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_mkdirat(struct thread *td, struct linux_mkdirat_args *args)
|
|
{
|
|
char *path;
|
|
int error, dfd;
|
|
|
|
dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
|
|
LCONVPATHCREAT_AT(td, args->pathname, &path, dfd);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(mkdirat))
|
|
printf(ARGS(mkdirat, "%s, %d"), path, args->mode);
|
|
#endif
|
|
error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_rmdir(struct thread *td, struct linux_rmdir_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(rmdir))
|
|
printf(ARGS(rmdir, "%s"), path);
|
|
#endif
|
|
error = kern_rmdir(td, path, UIO_SYSSPACE);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_rename(struct thread *td, struct linux_rename_args *args)
|
|
{
|
|
char *from, *to;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->from, &from);
|
|
/* Expand LCONVPATHCREATE so that `from' can be freed on errors */
|
|
error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
|
|
if (to == NULL) {
|
|
LFREEPATH(from);
|
|
return (error);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(rename))
|
|
printf(ARGS(rename, "%s, %s"), from, to);
|
|
#endif
|
|
error = kern_rename(td, from, to, UIO_SYSSPACE);
|
|
LFREEPATH(from);
|
|
LFREEPATH(to);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_renameat(struct thread *td, struct linux_renameat_args *args)
|
|
{
|
|
char *from, *to;
|
|
int error, olddfd, newdfd;
|
|
|
|
olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd;
|
|
newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
|
|
LCONVPATHEXIST_AT(td, args->oldname, &from, olddfd);
|
|
/* Expand LCONVPATHCREATE so that `from' can be freed on errors */
|
|
error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd);
|
|
if (to == NULL) {
|
|
LFREEPATH(from);
|
|
return (error);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(renameat))
|
|
printf(ARGS(renameat, "%s, %s"), from, to);
|
|
#endif
|
|
error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE);
|
|
LFREEPATH(from);
|
|
LFREEPATH(to);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_symlink(struct thread *td, struct linux_symlink_args *args)
|
|
{
|
|
char *path, *to;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
/* Expand LCONVPATHCREATE so that `path' can be freed on errors */
|
|
error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
|
|
if (to == NULL) {
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(symlink))
|
|
printf(ARGS(symlink, "%s, %s"), path, to);
|
|
#endif
|
|
error = kern_symlink(td, path, to, UIO_SYSSPACE);
|
|
LFREEPATH(path);
|
|
LFREEPATH(to);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_symlinkat(struct thread *td, struct linux_symlinkat_args *args)
|
|
{
|
|
char *path, *to;
|
|
int error, dfd;
|
|
|
|
dfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
|
|
LCONVPATHEXIST_AT(td, args->oldname, &path, dfd);
|
|
/* Expand LCONVPATHCREATE so that `path' can be freed on errors */
|
|
error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, dfd);
|
|
if (to == NULL) {
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(symlinkat))
|
|
printf(ARGS(symlinkat, "%s, %s"), path, to);
|
|
#endif
|
|
|
|
error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE);
|
|
LFREEPATH(path);
|
|
LFREEPATH(to);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_readlink(struct thread *td, struct linux_readlink_args *args)
|
|
{
|
|
char *name;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->name, &name);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(readlink))
|
|
printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf,
|
|
args->count);
|
|
#endif
|
|
error = kern_readlink(td, name, UIO_SYSSPACE, args->buf, UIO_USERSPACE,
|
|
args->count);
|
|
LFREEPATH(name);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_readlinkat(struct thread *td, struct linux_readlinkat_args *args)
|
|
{
|
|
char *name;
|
|
int error, dfd;
|
|
|
|
dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
|
|
LCONVPATHEXIST_AT(td, args->path, &name, dfd);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(readlinkat))
|
|
printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf,
|
|
args->bufsiz);
|
|
#endif
|
|
|
|
error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf,
|
|
UIO_USERSPACE, args->bufsiz);
|
|
LFREEPATH(name);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_truncate(struct thread *td, struct linux_truncate_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(truncate))
|
|
printf(ARGS(truncate, "%s, %ld"), path, (long)args->length);
|
|
#endif
|
|
|
|
error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_truncate64(struct thread *td, struct linux_truncate64_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(truncate64))
|
|
printf(ARGS(truncate64, "%s, %jd"), path, args->length);
|
|
#endif
|
|
|
|
error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
int
|
|
linux_ftruncate(struct thread *td, struct linux_ftruncate_args *args)
|
|
{
|
|
struct ftruncate_args /* {
|
|
int fd;
|
|
int pad;
|
|
off_t length;
|
|
} */ nuap;
|
|
|
|
nuap.fd = args->fd;
|
|
nuap.length = args->length;
|
|
return (ftruncate(td, &nuap));
|
|
}
|
|
|
|
int
|
|
linux_link(struct thread *td, struct linux_link_args *args)
|
|
{
|
|
char *path, *to;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
/* Expand LCONVPATHCREATE so that `path' can be freed on errors */
|
|
error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
|
|
if (to == NULL) {
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(link))
|
|
printf(ARGS(link, "%s, %s"), path, to);
|
|
#endif
|
|
error = kern_link(td, path, to, UIO_SYSSPACE);
|
|
LFREEPATH(path);
|
|
LFREEPATH(to);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_linkat(struct thread *td, struct linux_linkat_args *args)
|
|
{
|
|
char *path, *to;
|
|
int error, olddfd, newdfd;
|
|
|
|
/*
|
|
* They really introduced flags argument which is forbidden to
|
|
* use.
|
|
*/
|
|
if (args->flags != 0)
|
|
return (EINVAL);
|
|
|
|
olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd;
|
|
newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
|
|
LCONVPATHEXIST_AT(td, args->oldname, &path, olddfd);
|
|
/* Expand LCONVPATHCREATE so that `path' can be freed on errors */
|
|
error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd);
|
|
if (to == NULL) {
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(linkat))
|
|
printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path,
|
|
args->newdfd, to, args->flags);
|
|
#endif
|
|
|
|
error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, FOLLOW);
|
|
LFREEPATH(path);
|
|
LFREEPATH(to);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_fdatasync(td, uap)
|
|
struct thread *td;
|
|
struct linux_fdatasync_args *uap;
|
|
{
|
|
struct fsync_args bsd;
|
|
|
|
bsd.fd = uap->fd;
|
|
return fsync(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_pread(td, uap)
|
|
struct thread *td;
|
|
struct linux_pread_args *uap;
|
|
{
|
|
struct pread_args bsd;
|
|
struct vnode *vp;
|
|
int error;
|
|
|
|
bsd.fd = uap->fd;
|
|
bsd.buf = uap->buf;
|
|
bsd.nbyte = uap->nbyte;
|
|
bsd.offset = uap->offset;
|
|
|
|
error = pread(td, &bsd);
|
|
|
|
if (error == 0) {
|
|
/* This seems to violate POSIX but linux does it */
|
|
if ((error = fgetvp(td, uap->fd, &vp)) != 0)
|
|
return (error);
|
|
if (vp->v_type == VDIR) {
|
|
vrele(vp);
|
|
return (EISDIR);
|
|
}
|
|
vrele(vp);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_pwrite(td, uap)
|
|
struct thread *td;
|
|
struct linux_pwrite_args *uap;
|
|
{
|
|
struct pwrite_args bsd;
|
|
|
|
bsd.fd = uap->fd;
|
|
bsd.buf = uap->buf;
|
|
bsd.nbyte = uap->nbyte;
|
|
bsd.offset = uap->offset;
|
|
return pwrite(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_mount(struct thread *td, struct linux_mount_args *args)
|
|
{
|
|
struct ufs_args ufs;
|
|
char fstypename[MFSNAMELEN];
|
|
char mntonname[MNAMELEN], mntfromname[MNAMELEN];
|
|
int error;
|
|
int fsflags;
|
|
void *fsdata;
|
|
|
|
error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1,
|
|
NULL);
|
|
if (error)
|
|
return (error);
|
|
error = copyinstr(args->specialfile, mntfromname, MNAMELEN - 1, NULL);
|
|
if (error)
|
|
return (error);
|
|
error = copyinstr(args->dir, mntonname, MNAMELEN - 1, NULL);
|
|
if (error)
|
|
return (error);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(mount))
|
|
printf(ARGS(mount, "%s, %s, %s"),
|
|
fstypename, mntfromname, mntonname);
|
|
#endif
|
|
|
|
if (strcmp(fstypename, "ext2") == 0) {
|
|
strcpy(fstypename, "ext2fs");
|
|
fsdata = &ufs;
|
|
ufs.fspec = mntfromname;
|
|
#define DEFAULT_ROOTID -2
|
|
ufs.export.ex_root = DEFAULT_ROOTID;
|
|
ufs.export.ex_flags =
|
|
args->rwflag & LINUX_MS_RDONLY ? MNT_EXRDONLY : 0;
|
|
} else if (strcmp(fstypename, "proc") == 0) {
|
|
strcpy(fstypename, "linprocfs");
|
|
fsdata = NULL;
|
|
} else if (strcmp(fstypename, "vfat") == 0) {
|
|
strcpy(fstypename, "msdosfs");
|
|
fsdata = NULL;
|
|
} else {
|
|
return (ENODEV);
|
|
}
|
|
|
|
fsflags = 0;
|
|
|
|
if ((args->rwflag & 0xffff0000) == 0xc0ed0000) {
|
|
/*
|
|
* Linux SYNC flag is not included; the closest equivalent
|
|
* FreeBSD has is !ASYNC, which is our default.
|
|
*/
|
|
if (args->rwflag & LINUX_MS_RDONLY)
|
|
fsflags |= MNT_RDONLY;
|
|
if (args->rwflag & LINUX_MS_NOSUID)
|
|
fsflags |= MNT_NOSUID;
|
|
if (args->rwflag & LINUX_MS_NOEXEC)
|
|
fsflags |= MNT_NOEXEC;
|
|
if (args->rwflag & LINUX_MS_REMOUNT)
|
|
fsflags |= MNT_UPDATE;
|
|
}
|
|
|
|
if (strcmp(fstypename, "linprocfs") == 0) {
|
|
error = kernel_vmount(fsflags,
|
|
"fstype", fstypename,
|
|
"fspath", mntonname,
|
|
NULL);
|
|
} else if (strcmp(fstypename, "msdosfs") == 0) {
|
|
error = kernel_vmount(fsflags,
|
|
"fstype", fstypename,
|
|
"fspath", mntonname,
|
|
"from", mntfromname,
|
|
NULL);
|
|
} else
|
|
error = EOPNOTSUPP;
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_oldumount(struct thread *td, struct linux_oldumount_args *args)
|
|
{
|
|
struct linux_umount_args args2;
|
|
|
|
args2.path = args->path;
|
|
args2.flags = 0;
|
|
return (linux_umount(td, &args2));
|
|
}
|
|
|
|
int
|
|
linux_umount(struct thread *td, struct linux_umount_args *args)
|
|
{
|
|
struct unmount_args bsd;
|
|
|
|
bsd.path = args->path;
|
|
bsd.flags = args->flags; /* XXX correct? */
|
|
return (unmount(td, &bsd));
|
|
}
|
|
|
|
/*
|
|
* fcntl family of syscalls
|
|
*/
|
|
|
|
struct l_flock {
|
|
l_short l_type;
|
|
l_short l_whence;
|
|
l_off_t l_start;
|
|
l_off_t l_len;
|
|
l_pid_t l_pid;
|
|
}
|
|
#if defined(__amd64__) && defined(COMPAT_LINUX32)
|
|
__packed
|
|
#endif
|
|
;
|
|
|
|
static void
|
|
linux_to_bsd_flock(struct l_flock *linux_flock, struct flock *bsd_flock)
|
|
{
|
|
switch (linux_flock->l_type) {
|
|
case LINUX_F_RDLCK:
|
|
bsd_flock->l_type = F_RDLCK;
|
|
break;
|
|
case LINUX_F_WRLCK:
|
|
bsd_flock->l_type = F_WRLCK;
|
|
break;
|
|
case LINUX_F_UNLCK:
|
|
bsd_flock->l_type = F_UNLCK;
|
|
break;
|
|
default:
|
|
bsd_flock->l_type = -1;
|
|
break;
|
|
}
|
|
bsd_flock->l_whence = linux_flock->l_whence;
|
|
bsd_flock->l_start = (off_t)linux_flock->l_start;
|
|
bsd_flock->l_len = (off_t)linux_flock->l_len;
|
|
bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
|
|
bsd_flock->l_sysid = 0;
|
|
}
|
|
|
|
static void
|
|
bsd_to_linux_flock(struct flock *bsd_flock, struct l_flock *linux_flock)
|
|
{
|
|
switch (bsd_flock->l_type) {
|
|
case F_RDLCK:
|
|
linux_flock->l_type = LINUX_F_RDLCK;
|
|
break;
|
|
case F_WRLCK:
|
|
linux_flock->l_type = LINUX_F_WRLCK;
|
|
break;
|
|
case F_UNLCK:
|
|
linux_flock->l_type = LINUX_F_UNLCK;
|
|
break;
|
|
}
|
|
linux_flock->l_whence = bsd_flock->l_whence;
|
|
linux_flock->l_start = (l_off_t)bsd_flock->l_start;
|
|
linux_flock->l_len = (l_off_t)bsd_flock->l_len;
|
|
linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid;
|
|
}
|
|
|
|
#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
|
|
struct l_flock64 {
|
|
l_short l_type;
|
|
l_short l_whence;
|
|
l_loff_t l_start;
|
|
l_loff_t l_len;
|
|
l_pid_t l_pid;
|
|
}
|
|
#if defined(__amd64__) && defined(COMPAT_LINUX32)
|
|
__packed
|
|
#endif
|
|
;
|
|
|
|
static void
|
|
linux_to_bsd_flock64(struct l_flock64 *linux_flock, struct flock *bsd_flock)
|
|
{
|
|
switch (linux_flock->l_type) {
|
|
case LINUX_F_RDLCK:
|
|
bsd_flock->l_type = F_RDLCK;
|
|
break;
|
|
case LINUX_F_WRLCK:
|
|
bsd_flock->l_type = F_WRLCK;
|
|
break;
|
|
case LINUX_F_UNLCK:
|
|
bsd_flock->l_type = F_UNLCK;
|
|
break;
|
|
default:
|
|
bsd_flock->l_type = -1;
|
|
break;
|
|
}
|
|
bsd_flock->l_whence = linux_flock->l_whence;
|
|
bsd_flock->l_start = (off_t)linux_flock->l_start;
|
|
bsd_flock->l_len = (off_t)linux_flock->l_len;
|
|
bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
|
|
bsd_flock->l_sysid = 0;
|
|
}
|
|
|
|
static void
|
|
bsd_to_linux_flock64(struct flock *bsd_flock, struct l_flock64 *linux_flock)
|
|
{
|
|
switch (bsd_flock->l_type) {
|
|
case F_RDLCK:
|
|
linux_flock->l_type = LINUX_F_RDLCK;
|
|
break;
|
|
case F_WRLCK:
|
|
linux_flock->l_type = LINUX_F_WRLCK;
|
|
break;
|
|
case F_UNLCK:
|
|
linux_flock->l_type = LINUX_F_UNLCK;
|
|
break;
|
|
}
|
|
linux_flock->l_whence = bsd_flock->l_whence;
|
|
linux_flock->l_start = (l_loff_t)bsd_flock->l_start;
|
|
linux_flock->l_len = (l_loff_t)bsd_flock->l_len;
|
|
linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid;
|
|
}
|
|
#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
|
|
|
|
static int
|
|
fcntl_common(struct thread *td, struct linux_fcntl64_args *args)
|
|
{
|
|
struct l_flock linux_flock;
|
|
struct flock bsd_flock;
|
|
struct file *fp;
|
|
long arg;
|
|
int error, result;
|
|
|
|
switch (args->cmd) {
|
|
case LINUX_F_DUPFD:
|
|
return (kern_fcntl(td, args->fd, F_DUPFD, args->arg));
|
|
|
|
case LINUX_F_GETFD:
|
|
return (kern_fcntl(td, args->fd, F_GETFD, 0));
|
|
|
|
case LINUX_F_SETFD:
|
|
return (kern_fcntl(td, args->fd, F_SETFD, args->arg));
|
|
|
|
case LINUX_F_GETFL:
|
|
error = kern_fcntl(td, args->fd, F_GETFL, 0);
|
|
result = td->td_retval[0];
|
|
td->td_retval[0] = 0;
|
|
if (result & O_RDONLY)
|
|
td->td_retval[0] |= LINUX_O_RDONLY;
|
|
if (result & O_WRONLY)
|
|
td->td_retval[0] |= LINUX_O_WRONLY;
|
|
if (result & O_RDWR)
|
|
td->td_retval[0] |= LINUX_O_RDWR;
|
|
if (result & O_NDELAY)
|
|
td->td_retval[0] |= LINUX_O_NONBLOCK;
|
|
if (result & O_APPEND)
|
|
td->td_retval[0] |= LINUX_O_APPEND;
|
|
if (result & O_FSYNC)
|
|
td->td_retval[0] |= LINUX_O_SYNC;
|
|
if (result & O_ASYNC)
|
|
td->td_retval[0] |= LINUX_FASYNC;
|
|
#ifdef LINUX_O_NOFOLLOW
|
|
if (result & O_NOFOLLOW)
|
|
td->td_retval[0] |= LINUX_O_NOFOLLOW;
|
|
#endif
|
|
#ifdef LINUX_O_DIRECT
|
|
if (result & O_DIRECT)
|
|
td->td_retval[0] |= LINUX_O_DIRECT;
|
|
#endif
|
|
return (error);
|
|
|
|
case LINUX_F_SETFL:
|
|
arg = 0;
|
|
if (args->arg & LINUX_O_NDELAY)
|
|
arg |= O_NONBLOCK;
|
|
if (args->arg & LINUX_O_APPEND)
|
|
arg |= O_APPEND;
|
|
if (args->arg & LINUX_O_SYNC)
|
|
arg |= O_FSYNC;
|
|
if (args->arg & LINUX_FASYNC)
|
|
arg |= O_ASYNC;
|
|
#ifdef LINUX_O_NOFOLLOW
|
|
if (args->arg & LINUX_O_NOFOLLOW)
|
|
arg |= O_NOFOLLOW;
|
|
#endif
|
|
#ifdef LINUX_O_DIRECT
|
|
if (args->arg & LINUX_O_DIRECT)
|
|
arg |= O_DIRECT;
|
|
#endif
|
|
return (kern_fcntl(td, args->fd, F_SETFL, arg));
|
|
|
|
case LINUX_F_GETLK:
|
|
error = copyin((void *)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock(&linux_flock, &bsd_flock);
|
|
error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock);
|
|
if (error)
|
|
return (error);
|
|
bsd_to_linux_flock(&bsd_flock, &linux_flock);
|
|
return (copyout(&linux_flock, (void *)args->arg,
|
|
sizeof(linux_flock)));
|
|
|
|
case LINUX_F_SETLK:
|
|
error = copyin((void *)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock(&linux_flock, &bsd_flock);
|
|
return (kern_fcntl(td, args->fd, F_SETLK,
|
|
(intptr_t)&bsd_flock));
|
|
|
|
case LINUX_F_SETLKW:
|
|
error = copyin((void *)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock(&linux_flock, &bsd_flock);
|
|
return (kern_fcntl(td, args->fd, F_SETLKW,
|
|
(intptr_t)&bsd_flock));
|
|
|
|
case LINUX_F_GETOWN:
|
|
return (kern_fcntl(td, args->fd, F_GETOWN, 0));
|
|
|
|
case LINUX_F_SETOWN:
|
|
/*
|
|
* XXX some Linux applications depend on F_SETOWN having no
|
|
* significant effect for pipes (SIGIO is not delivered for
|
|
* pipes under Linux-2.2.35 at least).
|
|
*/
|
|
error = fget(td, args->fd, &fp);
|
|
if (error)
|
|
return (error);
|
|
if (fp->f_type == DTYPE_PIPE) {
|
|
fdrop(fp, td);
|
|
return (EINVAL);
|
|
}
|
|
fdrop(fp, td);
|
|
|
|
return (kern_fcntl(td, args->fd, F_SETOWN, args->arg));
|
|
}
|
|
|
|
return (EINVAL);
|
|
}
|
|
|
|
int
|
|
linux_fcntl(struct thread *td, struct linux_fcntl_args *args)
|
|
{
|
|
struct linux_fcntl64_args args64;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(fcntl))
|
|
printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd);
|
|
#endif
|
|
|
|
args64.fd = args->fd;
|
|
args64.cmd = args->cmd;
|
|
args64.arg = args->arg;
|
|
return (fcntl_common(td, &args64));
|
|
}
|
|
|
|
#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
|
|
int
|
|
linux_fcntl64(struct thread *td, struct linux_fcntl64_args *args)
|
|
{
|
|
struct l_flock64 linux_flock;
|
|
struct flock bsd_flock;
|
|
int error;
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(fcntl64))
|
|
printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd);
|
|
#endif
|
|
|
|
switch (args->cmd) {
|
|
case LINUX_F_GETLK64:
|
|
error = copyin((void *)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock64(&linux_flock, &bsd_flock);
|
|
error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock);
|
|
if (error)
|
|
return (error);
|
|
bsd_to_linux_flock64(&bsd_flock, &linux_flock);
|
|
return (copyout(&linux_flock, (void *)args->arg,
|
|
sizeof(linux_flock)));
|
|
|
|
case LINUX_F_SETLK64:
|
|
error = copyin((void *)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock64(&linux_flock, &bsd_flock);
|
|
return (kern_fcntl(td, args->fd, F_SETLK,
|
|
(intptr_t)&bsd_flock));
|
|
|
|
case LINUX_F_SETLKW64:
|
|
error = copyin((void *)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock64(&linux_flock, &bsd_flock);
|
|
return (kern_fcntl(td, args->fd, F_SETLKW,
|
|
(intptr_t)&bsd_flock));
|
|
}
|
|
|
|
return (fcntl_common(td, args));
|
|
}
|
|
#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
|
|
|
|
int
|
|
linux_chown(struct thread *td, struct linux_chown_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(chown))
|
|
printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid);
|
|
#endif
|
|
error = kern_chown(td, path, UIO_SYSSPACE, args->uid, args->gid);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_fchownat(struct thread *td, struct linux_fchownat_args *args)
|
|
{
|
|
char *path;
|
|
int error, dfd, follow;
|
|
|
|
if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW)
|
|
return (EINVAL);
|
|
|
|
dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
|
|
LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(fchownat))
|
|
printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid);
|
|
#endif
|
|
|
|
follow = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 :
|
|
AT_SYMLINK_NOFOLLOW;
|
|
error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid,
|
|
follow);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
linux_lchown(struct thread *td, struct linux_lchown_args *args)
|
|
{
|
|
char *path;
|
|
int error;
|
|
|
|
LCONVPATHEXIST(td, args->path, &path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(lchown))
|
|
printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid);
|
|
#endif
|
|
error = kern_lchown(td, path, UIO_SYSSPACE, args->uid, args->gid);
|
|
LFREEPATH(path);
|
|
return (error);
|
|
}
|