f591779bb5
New locks are: - pgrpsess_lock which locks the whole pgrps and sessions, - pg_mtx which protects the pgrp members, and - s_mtx which protects the session members. Please refer to sys/proc.h for the coverage of these locks. Changes on the pgrp/session interface: - pgfind() needs the pgrpsess_lock held. - The caller of enterpgrp() is responsible to allocate a new pgrp and session. - Call enterthispgrp() in order to enter an existing pgrp. - pgsignal() requires a pgrp lock held. Reviewed by: jhb, alfred Tested on: cvsup.jp.FreeBSD.org (which is a quad-CPU machine running -current)
1186 lines
26 KiB
C
1186 lines
26 KiB
C
/*-
|
|
* Copyright (c) 1994-1995 Søren Schmidt
|
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* All rights reserved.
|
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*
|
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
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* are met:
|
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* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer
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|
* in this position and unchanged.
|
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* 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
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* derived from this software withough specific prior written permission
|
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*
|
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
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* 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
|
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
|
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* $FreeBSD$
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*/
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|
|
|
#include "opt_compat.h"
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|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/dirent.h>
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|
#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/proc.h>
|
|
#include <sys/sysproto.h>
|
|
#include <sys/tty.h>
|
|
#include <sys/vnode.h>
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|
|
|
#include <ufs/ufs/extattr.h>
|
|
#include <ufs/ufs/quota.h>
|
|
#include <ufs/ufs/ufsmount.h>
|
|
|
|
#include <machine/../linux/linux.h>
|
|
#include <machine/../linux/linux_proto.h>
|
|
#include <compat/linux/linux_util.h>
|
|
|
|
#ifndef __alpha__
|
|
int
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|
linux_creat(struct thread *td, struct linux_creat_args *args)
|
|
{
|
|
struct open_args /* {
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|
char *path;
|
|
int flags;
|
|
int mode;
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|
} */ bsd_open_args;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTCREAT(td, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(creat))
|
|
printf(ARGS(creat, "%s, %d"), args->path, args->mode);
|
|
#endif
|
|
bsd_open_args.path = args->path;
|
|
bsd_open_args.mode = args->mode;
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|
bsd_open_args.flags = O_WRONLY | O_CREAT | O_TRUNC;
|
|
return open(td, &bsd_open_args);
|
|
}
|
|
#endif /*!__alpha__*/
|
|
|
|
int
|
|
linux_open(struct thread *td, struct linux_open_args *args)
|
|
{
|
|
struct open_args /* {
|
|
char *path;
|
|
int flags;
|
|
int mode;
|
|
} */ bsd_open_args;
|
|
struct proc *p = td->td_proc;
|
|
int error;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
|
|
if (args->flags & LINUX_O_CREAT)
|
|
CHECKALTCREAT(td, &sg, args->path);
|
|
else
|
|
CHECKALTEXIST(td, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(open))
|
|
printf(ARGS(open, "%s, 0x%x, 0x%x"),
|
|
args->path, args->flags, args->mode);
|
|
#endif
|
|
bsd_open_args.flags = 0;
|
|
if (args->flags & LINUX_O_RDONLY)
|
|
bsd_open_args.flags |= O_RDONLY;
|
|
if (args->flags & LINUX_O_WRONLY)
|
|
bsd_open_args.flags |= O_WRONLY;
|
|
if (args->flags & LINUX_O_RDWR)
|
|
bsd_open_args.flags |= O_RDWR;
|
|
if (args->flags & LINUX_O_NDELAY)
|
|
bsd_open_args.flags |= O_NONBLOCK;
|
|
if (args->flags & LINUX_O_APPEND)
|
|
bsd_open_args.flags |= O_APPEND;
|
|
if (args->flags & LINUX_O_SYNC)
|
|
bsd_open_args.flags |= O_FSYNC;
|
|
if (args->flags & LINUX_O_NONBLOCK)
|
|
bsd_open_args.flags |= O_NONBLOCK;
|
|
if (args->flags & LINUX_FASYNC)
|
|
bsd_open_args.flags |= O_ASYNC;
|
|
if (args->flags & LINUX_O_CREAT)
|
|
bsd_open_args.flags |= O_CREAT;
|
|
if (args->flags & LINUX_O_TRUNC)
|
|
bsd_open_args.flags |= O_TRUNC;
|
|
if (args->flags & LINUX_O_EXCL)
|
|
bsd_open_args.flags |= O_EXCL;
|
|
if (args->flags & LINUX_O_NOCTTY)
|
|
bsd_open_args.flags |= O_NOCTTY;
|
|
bsd_open_args.path = args->path;
|
|
bsd_open_args.mode = args->mode;
|
|
|
|
error = open(td, &bsd_open_args);
|
|
PROC_LOCK(p);
|
|
if (!error && !(bsd_open_args.flags & O_NOCTTY) &&
|
|
SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
|
|
struct file *fp;
|
|
|
|
error = fget(td, td->td_retval[0], &fp);
|
|
PROC_UNLOCK(p);
|
|
if (!error) {
|
|
if (fp->f_type == DTYPE_VNODE)
|
|
fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, td);
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|
fdrop(fp, td);
|
|
}
|
|
} else {
|
|
PROC_UNLOCK(p);
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|
#ifdef DEBUG
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|
if (ldebug(open))
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|
printf(LMSG("open returns error %d"), error);
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|
#endif
|
|
}
|
|
return error;
|
|
}
|
|
|
|
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"),
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|
args->fdes, (long)args->off, args->whence);
|
|
#endif
|
|
tmp_args.fd = args->fdes;
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|
tmp_args.offset = (off_t)args->off;
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|
tmp_args.whence = args->whence;
|
|
error = lseek(td, &tmp_args);
|
|
return error;
|
|
}
|
|
|
|
#ifndef __alpha__
|
|
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"),
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|
args->fd, args->ohigh, args->olow, args->whence);
|
|
#endif
|
|
off = (args->olow) | (((off_t) args->ohigh) << 32);
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|
|
|
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, (caddr_t)args->res, sizeof (off_t))))
|
|
return error;
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|
|
|
td->td_retval[0] = 0;
|
|
return 0;
|
|
}
|
|
#endif /*!__alpha__*/
|
|
|
|
#ifndef __alpha__
|
|
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);
|
|
}
|
|
#endif /*!__alpha__*/
|
|
|
|
/*
|
|
* 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_long 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];
|
|
};
|
|
|
|
#define LINUX_RECLEN(de,namlen) \
|
|
ALIGN((((char *)&(de)->d_name - (char *)de) + (namlen) + 1))
|
|
|
|
#define LINUX_DIRBLKSIZ 512
|
|
|
|
static int
|
|
getdents_common(struct thread *td, struct linux_getdents64_args *args,
|
|
int is64bit)
|
|
{
|
|
register 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 */
|
|
struct file *fp;
|
|
struct uio auio;
|
|
struct iovec aiov;
|
|
struct vattr va;
|
|
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;
|
|
|
|
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 = (struct vnode *) fp->f_data;
|
|
if (vp->v_type != VDIR) {
|
|
fdrop(fp, td);
|
|
return (EINVAL);
|
|
}
|
|
|
|
if ((error = VOP_GETATTR(vp, &va, td->td_proc->p_ucred, td))) {
|
|
fdrop(fp, td);
|
|
return (error);
|
|
}
|
|
|
|
nbytes = args->count;
|
|
if (nbytes == 1) {
|
|
/* readdir(2) case. Always struct dirent. */
|
|
if (is64bit) {
|
|
fdrop(fp, td);
|
|
return (EINVAL);
|
|
}
|
|
nbytes = sizeof(linux_dirent);
|
|
justone = 1;
|
|
} else
|
|
justone = 0;
|
|
|
|
off = fp->f_offset;
|
|
|
|
buflen = max(LINUX_DIRBLKSIZ, nbytes);
|
|
buflen = min(buflen, MAXBSIZE);
|
|
buf = malloc(buflen, M_TEMP, M_WAITOK);
|
|
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
|
|
|
|
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;
|
|
}
|
|
|
|
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_RECLEN(&linux_dirent64, bdp->d_namlen)
|
|
: LINUX_RECLEN(&linux_dirent, bdp->d_namlen);
|
|
|
|
if (reclen > len || resid < linuxreclen) {
|
|
outp++;
|
|
break;
|
|
}
|
|
|
|
if (justone) {
|
|
/* readdir(2) case. */
|
|
linux_dirent.d_ino = (l_long)bdp->d_fileno;
|
|
linux_dirent.d_off = (l_off_t)linuxreclen;
|
|
linux_dirent.d_reclen = (l_ushort)bdp->d_namlen;
|
|
strcpy(linux_dirent.d_name, bdp->d_name);
|
|
error = copyout(&linux_dirent, outp, linuxreclen);
|
|
} else {
|
|
if (is64bit) {
|
|
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;
|
|
strcpy(linux_dirent64.d_name, bdp->d_name);
|
|
error = copyout(&linux_dirent64, outp,
|
|
linuxreclen);
|
|
} else {
|
|
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;
|
|
strcpy(linux_dirent.d_name, bdp->d_name);
|
|
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, td);
|
|
fdrop(fp, td);
|
|
free(buf, 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)
|
|
{
|
|
struct access_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(access))
|
|
printf(ARGS(access, "%s, %d"), args->path, args->flags);
|
|
#endif
|
|
bsd.path = args->path;
|
|
bsd.flags = args->flags;
|
|
|
|
return access(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_unlink(struct thread *td, struct linux_unlink_args *args)
|
|
{
|
|
struct unlink_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(unlink))
|
|
printf(ARGS(unlink, "%s"), args->path);
|
|
#endif
|
|
bsd.path = args->path;
|
|
|
|
return unlink(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_chdir(struct thread *td, struct linux_chdir_args *args)
|
|
{
|
|
struct chdir_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(chdir))
|
|
printf(ARGS(chdir, "%s"), args->path);
|
|
#endif
|
|
bsd.path = args->path;
|
|
|
|
return chdir(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_chmod(struct thread *td, struct linux_chmod_args *args)
|
|
{
|
|
struct chmod_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(chmod))
|
|
printf(ARGS(chmod, "%s, %d"), args->path, args->mode);
|
|
#endif
|
|
bsd.path = args->path;
|
|
bsd.mode = args->mode;
|
|
|
|
return chmod(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_mkdir(struct thread *td, struct linux_mkdir_args *args)
|
|
{
|
|
struct mkdir_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTCREAT(td, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(mkdir))
|
|
printf(ARGS(mkdir, "%s, %d"), args->path, args->mode);
|
|
#endif
|
|
bsd.path = args->path;
|
|
bsd.mode = args->mode;
|
|
|
|
return mkdir(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_rmdir(struct thread *td, struct linux_rmdir_args *args)
|
|
{
|
|
struct rmdir_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(rmdir))
|
|
printf(ARGS(rmdir, "%s"), args->path);
|
|
#endif
|
|
bsd.path = args->path;
|
|
|
|
return rmdir(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_rename(struct thread *td, struct linux_rename_args *args)
|
|
{
|
|
struct rename_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->from);
|
|
CHECKALTCREAT(td, &sg, args->to);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(rename))
|
|
printf(ARGS(rename, "%s, %s"), args->from, args->to);
|
|
#endif
|
|
bsd.from = args->from;
|
|
bsd.to = args->to;
|
|
|
|
return rename(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_symlink(struct thread *td, struct linux_symlink_args *args)
|
|
{
|
|
struct symlink_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->path);
|
|
CHECKALTCREAT(td, &sg, args->to);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(symlink))
|
|
printf(ARGS(symlink, "%s, %s"), args->path, args->to);
|
|
#endif
|
|
bsd.path = args->path;
|
|
bsd.link = args->to;
|
|
|
|
return symlink(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_readlink(struct thread *td, struct linux_readlink_args *args)
|
|
{
|
|
struct readlink_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->name);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(readlink))
|
|
printf(ARGS(readlink, "%s, %p, %d"),
|
|
args->name, (void *)args->buf, args->count);
|
|
#endif
|
|
bsd.path = args->name;
|
|
bsd.buf = args->buf;
|
|
bsd.count = args->count;
|
|
|
|
return readlink(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_truncate(struct thread *td, struct linux_truncate_args *args)
|
|
{
|
|
struct truncate_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(truncate))
|
|
printf(ARGS(truncate, "%s, %ld"), args->path,
|
|
(long)args->length);
|
|
#endif
|
|
bsd.path = args->path;
|
|
bsd.length = args->length;
|
|
|
|
return truncate(td, &bsd);
|
|
}
|
|
|
|
int
|
|
linux_link(struct thread *td, struct linux_link_args *args)
|
|
{
|
|
struct link_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->path);
|
|
CHECKALTCREAT(td, &sg, args->to);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(link))
|
|
printf(ARGS(link, "%s, %s"), args->path, args->to);
|
|
#endif
|
|
|
|
bsd.path = args->path;
|
|
bsd.link = args->to;
|
|
|
|
return link(td, &bsd);
|
|
}
|
|
|
|
#ifndef __alpha__
|
|
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);
|
|
}
|
|
#endif /*!__alpha__*/
|
|
|
|
int
|
|
linux_pread(td, uap)
|
|
struct thread *td;
|
|
struct linux_pread_args *uap;
|
|
{
|
|
struct pread_args bsd;
|
|
|
|
bsd.fd = uap->fd;
|
|
bsd.buf = uap->buf;
|
|
bsd.nbyte = uap->nbyte;
|
|
bsd.offset = uap->offset;
|
|
return pread(td, &bsd);
|
|
}
|
|
|
|
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;
|
|
const char *fstype;
|
|
void *fsdata;
|
|
|
|
error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1,
|
|
NULL);
|
|
if (error)
|
|
return (error);
|
|
error = copyinstr(args->specialfile, mntfromname, MFSNAMELEN - 1, NULL);
|
|
if (error)
|
|
return (error);
|
|
error = copyinstr(args->dir, mntonname, MFSNAMELEN - 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) {
|
|
fstype = "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) {
|
|
fstype = "linprocfs";
|
|
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_NODEV)
|
|
fsflags |= MNT_NODEV;
|
|
if (args->rwflag & LINUX_MS_NOEXEC)
|
|
fsflags |= MNT_NOEXEC;
|
|
if (args->rwflag & LINUX_MS_REMOUNT)
|
|
fsflags |= MNT_UPDATE;
|
|
}
|
|
|
|
return (vfs_mount(td, fstype, mntonname, fsflags, fsdata));
|
|
}
|
|
|
|
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;
|
|
};
|
|
|
|
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;
|
|
}
|
|
|
|
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__)
|
|
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;
|
|
};
|
|
|
|
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;
|
|
}
|
|
|
|
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__ */
|
|
|
|
#if defined(__alpha__)
|
|
#define linux_fcntl64_args linux_fcntl_args
|
|
#endif
|
|
|
|
static int
|
|
fcntl_common(struct thread *td, struct linux_fcntl64_args *args)
|
|
{
|
|
struct fcntl_args fcntl_args;
|
|
struct file *fp;
|
|
int error, result;
|
|
|
|
fcntl_args.fd = args->fd;
|
|
|
|
switch (args->cmd) {
|
|
case LINUX_F_DUPFD:
|
|
fcntl_args.cmd = F_DUPFD;
|
|
fcntl_args.arg = args->arg;
|
|
return (fcntl(td, &fcntl_args));
|
|
|
|
case LINUX_F_GETFD:
|
|
fcntl_args.cmd = F_GETFD;
|
|
return (fcntl(td, &fcntl_args));
|
|
|
|
case LINUX_F_SETFD:
|
|
fcntl_args.cmd = F_SETFD;
|
|
fcntl_args.arg = args->arg;
|
|
return (fcntl(td, &fcntl_args));
|
|
|
|
case LINUX_F_GETFL:
|
|
fcntl_args.cmd = F_GETFL;
|
|
error = fcntl(td, &fcntl_args);
|
|
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;
|
|
return (error);
|
|
|
|
case LINUX_F_SETFL:
|
|
fcntl_args.arg = 0;
|
|
if (args->arg & LINUX_O_NDELAY)
|
|
fcntl_args.arg |= O_NONBLOCK;
|
|
if (args->arg & LINUX_O_APPEND)
|
|
fcntl_args.arg |= O_APPEND;
|
|
if (args->arg & LINUX_O_SYNC)
|
|
fcntl_args.arg |= O_FSYNC;
|
|
if (args->arg & LINUX_FASYNC)
|
|
fcntl_args.arg |= O_ASYNC;
|
|
fcntl_args.cmd = F_SETFL;
|
|
return (fcntl(td, &fcntl_args));
|
|
|
|
case LINUX_F_GETOWN:
|
|
fcntl_args.cmd = F_GETOWN;
|
|
return (fcntl(td, &fcntl_args));
|
|
|
|
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);
|
|
|
|
fcntl_args.cmd = F_SETOWN;
|
|
fcntl_args.arg = args->arg;
|
|
return (fcntl(td, &fcntl_args));
|
|
}
|
|
|
|
return (EINVAL);
|
|
}
|
|
|
|
int
|
|
linux_fcntl(struct thread *td, struct linux_fcntl_args *args)
|
|
{
|
|
struct linux_fcntl64_args args64;
|
|
struct fcntl_args fcntl_args;
|
|
struct l_flock linux_flock;
|
|
struct flock *bsd_flock;
|
|
int error;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
bsd_flock = (struct flock *)stackgap_alloc(&sg, sizeof(bsd_flock));
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(fcntl))
|
|
printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd);
|
|
#endif
|
|
|
|
switch (args->cmd) {
|
|
case LINUX_F_GETLK:
|
|
error = copyin((caddr_t)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock(&linux_flock, bsd_flock);
|
|
fcntl_args.fd = args->fd;
|
|
fcntl_args.cmd = F_GETLK;
|
|
fcntl_args.arg = (long)bsd_flock;
|
|
error = fcntl(td, &fcntl_args);
|
|
if (error)
|
|
return (error);
|
|
bsd_to_linux_flock(bsd_flock, &linux_flock);
|
|
return (copyout(&linux_flock, (caddr_t)args->arg,
|
|
sizeof(linux_flock)));
|
|
|
|
case LINUX_F_SETLK:
|
|
error = copyin((caddr_t)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock(&linux_flock, bsd_flock);
|
|
fcntl_args.fd = args->fd;
|
|
fcntl_args.cmd = F_SETLK;
|
|
fcntl_args.arg = (long)bsd_flock;
|
|
return (fcntl(td, &fcntl_args));
|
|
|
|
case LINUX_F_SETLKW:
|
|
error = copyin((caddr_t)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock(&linux_flock, bsd_flock);
|
|
fcntl_args.fd = args->fd;
|
|
fcntl_args.cmd = F_SETLKW;
|
|
fcntl_args.arg = (long)bsd_flock;
|
|
return (fcntl(td, &fcntl_args));
|
|
}
|
|
|
|
args64.fd = args->fd;
|
|
args64.cmd = args->cmd;
|
|
args64.arg = args->arg;
|
|
return (fcntl_common(td, &args64));
|
|
}
|
|
|
|
#if defined(__i386__)
|
|
int
|
|
linux_fcntl64(struct thread *td, struct linux_fcntl64_args *args)
|
|
{
|
|
struct fcntl_args fcntl_args;
|
|
struct l_flock64 linux_flock;
|
|
struct flock *bsd_flock;
|
|
int error;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
bsd_flock = (struct flock *)stackgap_alloc(&sg, sizeof(bsd_flock));
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(fcntl64))
|
|
printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd);
|
|
#endif
|
|
|
|
switch (args->cmd) {
|
|
case LINUX_F_GETLK:
|
|
error = copyin((caddr_t)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock64(&linux_flock, bsd_flock);
|
|
fcntl_args.fd = args->fd;
|
|
fcntl_args.cmd = F_GETLK;
|
|
fcntl_args.arg = (long)bsd_flock;
|
|
error = fcntl(td, &fcntl_args);
|
|
if (error)
|
|
return (error);
|
|
bsd_to_linux_flock64(bsd_flock, &linux_flock);
|
|
return (copyout(&linux_flock, (caddr_t)args->arg,
|
|
sizeof(linux_flock)));
|
|
|
|
case LINUX_F_SETLK:
|
|
error = copyin((caddr_t)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock64(&linux_flock, bsd_flock);
|
|
fcntl_args.fd = args->fd;
|
|
fcntl_args.cmd = F_SETLK;
|
|
fcntl_args.arg = (long)bsd_flock;
|
|
return (fcntl(td, &fcntl_args));
|
|
|
|
case LINUX_F_SETLKW:
|
|
error = copyin((caddr_t)args->arg, &linux_flock,
|
|
sizeof(linux_flock));
|
|
if (error)
|
|
return (error);
|
|
linux_to_bsd_flock64(&linux_flock, bsd_flock);
|
|
fcntl_args.fd = args->fd;
|
|
fcntl_args.cmd = F_SETLKW;
|
|
fcntl_args.arg = (long)bsd_flock;
|
|
return (fcntl(td, &fcntl_args));
|
|
}
|
|
|
|
return (fcntl_common(td, args));
|
|
}
|
|
#endif /* __i386__ */
|
|
|
|
int
|
|
linux_chown(struct thread *td, struct linux_chown_args *args)
|
|
{
|
|
struct chown_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(chown))
|
|
printf(ARGS(chown, "%s, %d, %d"), args->path, args->uid,
|
|
args->gid);
|
|
#endif
|
|
|
|
bsd.path = args->path;
|
|
bsd.uid = args->uid;
|
|
bsd.gid = args->gid;
|
|
return (chown(td, &bsd));
|
|
}
|
|
|
|
int
|
|
linux_lchown(struct thread *td, struct linux_lchown_args *args)
|
|
{
|
|
struct lchown_args bsd;
|
|
caddr_t sg;
|
|
|
|
sg = stackgap_init();
|
|
CHECKALTEXIST(td, &sg, args->path);
|
|
|
|
#ifdef DEBUG
|
|
if (ldebug(lchown))
|
|
printf(ARGS(lchown, "%s, %d, %d"), args->path, args->uid,
|
|
args->gid);
|
|
#endif
|
|
|
|
bsd.path = args->path;
|
|
bsd.uid = args->uid;
|
|
bsd.gid = args->gid;
|
|
return (lchown(td, &bsd));
|
|
}
|