e225428f27
if no records where returned by VOP_READDIR(). Readdir implementations allowed to return 0 records when first record is larger then supplied buffer. In this case trying to execute VOP_READDIR() again causes the syscall looping forewer. The goto was there from the day 1, which goes back to 1995 year. Reported and tested by: Beat G?tzi <beat chruetertee ch> MFC after: 2 weeks
1532 lines
35 KiB
C
1532 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 <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;
|
|
if (l_flags & LINUX_O_DIRECTORY)
|
|
bsd_flags |= O_DIRECTORY;
|
|
/* 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);
|
|
}
|
|
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);
|
|
|
|
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) {
|
|
nbytes = resid;
|
|
goto eof;
|
|
}
|
|
|
|
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, 0);
|
|
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);
|
|
}
|