2 * Copyright (c) 1994-1995 Søren Schmidt
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include "opt_compat.h"
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/capability.h>
38 #include <sys/dirent.h>
39 #include <sys/fcntl.h>
41 #include <sys/filedesc.h>
43 #include <sys/malloc.h>
44 #include <sys/mount.h>
45 #include <sys/mutex.h>
46 #include <sys/namei.h>
50 #include <sys/syscallsubr.h>
51 #include <sys/sysproto.h>
53 #include <sys/unistd.h>
54 #include <sys/vnode.h>
56 #include <security/mac/mac_framework.h>
58 #include <ufs/ufs/extattr.h>
59 #include <ufs/ufs/quota.h>
60 #include <ufs/ufs/ufsmount.h>
63 #include <machine/../linux32/linux.h>
64 #include <machine/../linux32/linux32_proto.h>
66 #include <machine/../linux/linux.h>
67 #include <machine/../linux/linux_proto.h>
69 #include <compat/linux/linux_util.h>
70 #include <compat/linux/linux_file.h>
73 int do_pipe(struct thread *td, int fildes[2], int flags);
76 linux_creat(struct thread *td, struct linux_creat_args *args)
81 LCONVPATHEXIST(td, args->path, &path);
85 printf(ARGS(creat, "%s, %d"), path, args->mode);
87 error = kern_open(td, path, UIO_SYSSPACE, O_WRONLY | O_CREAT | O_TRUNC,
95 linux_common_open(struct thread *td, int dirfd, char *path, int l_flags, int mode)
97 struct proc *p = td->td_proc;
100 int bsd_flags, error;
103 switch (l_flags & LINUX_O_ACCMODE) {
105 bsd_flags |= O_WRONLY;
111 bsd_flags |= O_RDONLY;
113 if (l_flags & LINUX_O_NDELAY)
114 bsd_flags |= O_NONBLOCK;
115 if (l_flags & LINUX_O_APPEND)
116 bsd_flags |= O_APPEND;
117 if (l_flags & LINUX_O_SYNC)
118 bsd_flags |= O_FSYNC;
119 if (l_flags & LINUX_O_NONBLOCK)
120 bsd_flags |= O_NONBLOCK;
121 if (l_flags & LINUX_FASYNC)
122 bsd_flags |= O_ASYNC;
123 if (l_flags & LINUX_O_CREAT)
124 bsd_flags |= O_CREAT;
125 if (l_flags & LINUX_O_TRUNC)
126 bsd_flags |= O_TRUNC;
127 if (l_flags & LINUX_O_EXCL)
129 if (l_flags & LINUX_O_NOCTTY)
130 bsd_flags |= O_NOCTTY;
131 if (l_flags & LINUX_O_DIRECT)
132 bsd_flags |= O_DIRECT;
133 if (l_flags & LINUX_O_NOFOLLOW)
134 bsd_flags |= O_NOFOLLOW;
135 if (l_flags & LINUX_O_DIRECTORY)
136 bsd_flags |= O_DIRECTORY;
137 /* XXX LINUX_O_NOATIME: unable to be easily implemented. */
139 error = kern_openat(td, dirfd, path, UIO_SYSSPACE, bsd_flags, mode);
142 fd = td->td_retval[0];
144 * XXX In between kern_open() and fget(), another process
145 * having the same filedesc could use that fd without
148 error = fget(td, fd, CAP_IOCTL, &fp);
150 sx_slock(&proctree_lock);
152 if (!(bsd_flags & O_NOCTTY) &&
153 SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
155 sx_unlock(&proctree_lock);
156 if (fp->f_type == DTYPE_VNODE)
157 (void) fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0,
161 sx_sunlock(&proctree_lock);
165 * XXX as above, fdrop()/kern_close() pair is racy.
174 printf(LMSG("open returns error %d"), error);
181 linux_openat(struct thread *td, struct linux_openat_args *args)
186 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
187 if (args->flags & LINUX_O_CREAT)
188 LCONVPATH_AT(td, args->filename, &path, 1, dfd);
190 LCONVPATH_AT(td, args->filename, &path, 0, dfd);
193 printf(ARGS(openat, "%i, %s, 0x%x, 0x%x"), args->dfd,
194 path, args->flags, args->mode);
196 return (linux_common_open(td, dfd, path, args->flags, args->mode));
200 linux_open(struct thread *td, struct linux_open_args *args)
204 if (args->flags & LINUX_O_CREAT)
205 LCONVPATHCREAT(td, args->path, &path);
207 LCONVPATHEXIST(td, args->path, &path);
211 printf(ARGS(open, "%s, 0x%x, 0x%x"),
212 path, args->flags, args->mode);
215 return (linux_common_open(td, AT_FDCWD, path, args->flags, args->mode));
219 linux_lseek(struct thread *td, struct linux_lseek_args *args)
222 struct lseek_args /* {
232 printf(ARGS(lseek, "%d, %ld, %d"),
233 args->fdes, (long)args->off, args->whence);
235 tmp_args.fd = args->fdes;
236 tmp_args.offset = (off_t)args->off;
237 tmp_args.whence = args->whence;
238 error = sys_lseek(td, &tmp_args);
243 linux_llseek(struct thread *td, struct linux_llseek_args *args)
245 struct lseek_args bsd_args;
251 printf(ARGS(llseek, "%d, %d:%d, %d"),
252 args->fd, args->ohigh, args->olow, args->whence);
254 off = (args->olow) | (((off_t) args->ohigh) << 32);
256 bsd_args.fd = args->fd;
257 bsd_args.offset = off;
258 bsd_args.whence = args->whence;
260 if ((error = sys_lseek(td, &bsd_args)))
263 if ((error = copyout(td->td_retval, args->res, sizeof (off_t))))
266 td->td_retval[0] = 0;
271 linux_readdir(struct thread *td, struct linux_readdir_args *args)
273 struct linux_getdents_args lda;
276 lda.dent = args->dent;
278 return linux_getdents(td, &lda);
282 * Note that linux_getdents(2) and linux_getdents64(2) have the same
283 * arguments. They only differ in the definition of struct dirent they
284 * operate on. We use this to common the code, with the exception of
285 * accessing struct dirent. Note that linux_readdir(2) is implemented
286 * by means of linux_getdents(2). In this case we never operate on
287 * struct dirent64 and thus don't need to handle it...
294 char d_name[LINUX_NAME_MAX + 1];
302 char d_name[LINUX_NAME_MAX + 1];
306 * Linux uses the last byte in the dirent buffer to store d_type,
307 * at least glibc-2.7 requires it. That is why l_dirent is padded with 2 bytes.
309 #define LINUX_RECLEN(namlen) \
310 roundup((offsetof(struct l_dirent, d_name) + (namlen) + 2), \
313 #define LINUX_RECLEN64(namlen) \
314 roundup((offsetof(struct l_dirent64, d_name) + (namlen) + 1), \
317 #define LINUX_MAXRECLEN max(LINUX_RECLEN(LINUX_NAME_MAX), \
318 LINUX_RECLEN64(LINUX_NAME_MAX))
319 #define LINUX_DIRBLKSIZ 512
322 getdents_common(struct thread *td, struct linux_getdents64_args *args,
327 caddr_t inp, buf; /* BSD-format */
328 int len, reclen; /* BSD-format */
329 caddr_t outp; /* Linux-format */
330 int resid, linuxreclen=0; /* Linux-format */
331 caddr_t lbuf; /* Linux-format */
336 struct l_dirent *linux_dirent;
337 struct l_dirent64 *linux_dirent64;
338 int buflen, error, eofflag, nbytes, justone;
339 u_long *cookies = NULL, *cookiep;
340 int ncookies, vfslocked;
342 nbytes = args->count;
344 /* readdir(2) case. Always struct dirent. */
347 nbytes = sizeof(*linux_dirent);
352 if ((error = getvnode(td->td_proc->p_fd, args->fd, CAP_READ, &fp)) != 0)
355 if ((fp->f_flag & FREAD) == 0) {
360 off = foffset_lock(fp, 0);
362 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
363 if (vp->v_type != VDIR) {
364 VFS_UNLOCK_GIANT(vfslocked);
365 foffset_unlock(fp, off, 0);
371 buflen = max(LINUX_DIRBLKSIZ, nbytes);
372 buflen = min(buflen, MAXBSIZE);
373 buf = malloc(buflen, M_TEMP, M_WAITOK);
374 lbuf = malloc(LINUX_MAXRECLEN, M_TEMP, M_WAITOK | M_ZERO);
375 vn_lock(vp, LK_SHARED | LK_RETRY);
378 aiov.iov_len = buflen;
379 auio.uio_iov = &aiov;
381 auio.uio_rw = UIO_READ;
382 auio.uio_segflg = UIO_SYSSPACE;
384 auio.uio_resid = buflen;
385 auio.uio_offset = off;
389 * Do directory search MAC check using non-cached credentials.
391 if ((error = mac_vnode_check_readdir(td->td_ucred, vp)))
394 if ((error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies,
399 outp = (caddr_t)args->dirent;
401 if ((len = buflen - auio.uio_resid) <= 0)
408 * When using cookies, the vfs has the option of reading from
409 * a different offset than that supplied (UFS truncates the
410 * offset to a block boundary to make sure that it never reads
411 * partway through a directory entry, even if the directory
412 * has been compacted).
414 while (len > 0 && ncookies > 0 && *cookiep <= off) {
415 bdp = (struct dirent *) inp;
416 len -= bdp->d_reclen;
417 inp += bdp->d_reclen;
424 if (cookiep && ncookies == 0)
426 bdp = (struct dirent *) inp;
427 reclen = bdp->d_reclen;
433 if (bdp->d_fileno == 0) {
445 linuxreclen = (is64bit)
446 ? LINUX_RECLEN64(bdp->d_namlen)
447 : LINUX_RECLEN(bdp->d_namlen);
449 if (reclen > len || resid < linuxreclen) {
455 /* readdir(2) case. */
456 linux_dirent = (struct l_dirent*)lbuf;
457 linux_dirent->d_ino = bdp->d_fileno;
458 linux_dirent->d_off = (l_off_t)linuxreclen;
459 linux_dirent->d_reclen = (l_ushort)bdp->d_namlen;
460 strlcpy(linux_dirent->d_name, bdp->d_name,
461 linuxreclen - offsetof(struct l_dirent, d_name));
462 error = copyout(linux_dirent, outp, linuxreclen);
465 linux_dirent64 = (struct l_dirent64*)lbuf;
466 linux_dirent64->d_ino = bdp->d_fileno;
467 linux_dirent64->d_off = (cookiep)
469 : (l_off_t)(off + reclen);
470 linux_dirent64->d_reclen = (l_ushort)linuxreclen;
471 linux_dirent64->d_type = bdp->d_type;
472 strlcpy(linux_dirent64->d_name, bdp->d_name,
473 linuxreclen - offsetof(struct l_dirent64, d_name));
474 error = copyout(linux_dirent64, outp, linuxreclen);
475 } else if (!justone) {
476 linux_dirent = (struct l_dirent*)lbuf;
477 linux_dirent->d_ino = bdp->d_fileno;
478 linux_dirent->d_off = (cookiep)
480 : (l_off_t)(off + reclen);
481 linux_dirent->d_reclen = (l_ushort)linuxreclen;
483 * Copy d_type to last byte of l_dirent buffer
485 lbuf[linuxreclen-1] = bdp->d_type;
486 strlcpy(linux_dirent->d_name, bdp->d_name,
487 linuxreclen - offsetof(struct l_dirent, d_name)-1);
488 error = copyout(linux_dirent, outp, linuxreclen);
502 resid -= linuxreclen;
508 if (outp == (caddr_t)args->dirent) {
514 nbytes = resid + linuxreclen;
517 td->td_retval[0] = nbytes - resid;
521 free(cookies, M_TEMP);
524 VFS_UNLOCK_GIANT(vfslocked);
525 foffset_unlock(fp, off, 0);
533 linux_getdents(struct thread *td, struct linux_getdents_args *args)
537 if (ldebug(getdents))
538 printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count);
541 return (getdents_common(td, (struct linux_getdents64_args*)args, 0));
545 linux_getdents64(struct thread *td, struct linux_getdents64_args *args)
549 if (ldebug(getdents64))
550 printf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count);
553 return (getdents_common(td, args, 1));
557 * These exist mainly for hooks for doing /compat/linux translation.
561 linux_access(struct thread *td, struct linux_access_args *args)
566 /* linux convention */
567 if (args->flags & ~(F_OK | X_OK | W_OK | R_OK))
570 LCONVPATHEXIST(td, args->path, &path);
574 printf(ARGS(access, "%s, %d"), path, args->flags);
576 error = kern_access(td, path, UIO_SYSSPACE, args->flags);
583 linux_faccessat(struct thread *td, struct linux_faccessat_args *args)
588 /* linux convention */
589 if (args->mode & ~(F_OK | X_OK | W_OK | R_OK))
592 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
593 LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
597 printf(ARGS(access, "%s, %d"), path, args->mode);
600 error = kern_accessat(td, dfd, path, UIO_SYSSPACE, 0 /* XXX */,
608 linux_unlink(struct thread *td, struct linux_unlink_args *args)
614 LCONVPATHEXIST(td, args->path, &path);
618 printf(ARGS(unlink, "%s"), path);
621 error = kern_unlink(td, path, UIO_SYSSPACE);
623 /* Introduce POSIX noncompliant behaviour of Linux */
624 if (kern_stat(td, path, UIO_SYSSPACE, &st) == 0)
625 if (S_ISDIR(st.st_mode))
632 linux_unlinkat(struct thread *td, struct linux_unlinkat_args *args)
638 if (args->flag & ~LINUX_AT_REMOVEDIR)
641 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
642 LCONVPATHEXIST_AT(td, args->pathname, &path, dfd);
645 if (ldebug(unlinkat))
646 printf(ARGS(unlinkat, "%s"), path);
649 if (args->flag & LINUX_AT_REMOVEDIR)
650 error = kern_rmdirat(td, dfd, path, UIO_SYSSPACE);
652 error = kern_unlinkat(td, dfd, path, UIO_SYSSPACE, 0);
653 if (error == EPERM && !(args->flag & LINUX_AT_REMOVEDIR)) {
654 /* Introduce POSIX noncompliant behaviour of Linux */
655 if (kern_statat(td, AT_SYMLINK_NOFOLLOW, dfd, path,
656 UIO_SYSSPACE, &st) == 0 && S_ISDIR(st.st_mode))
663 linux_chdir(struct thread *td, struct linux_chdir_args *args)
668 LCONVPATHEXIST(td, args->path, &path);
672 printf(ARGS(chdir, "%s"), path);
674 error = kern_chdir(td, path, UIO_SYSSPACE);
680 linux_chmod(struct thread *td, struct linux_chmod_args *args)
685 LCONVPATHEXIST(td, args->path, &path);
689 printf(ARGS(chmod, "%s, %d"), path, args->mode);
691 error = kern_chmod(td, path, UIO_SYSSPACE, args->mode);
697 linux_fchmodat(struct thread *td, struct linux_fchmodat_args *args)
702 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
703 LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
706 if (ldebug(fchmodat))
707 printf(ARGS(fchmodat, "%s, %d"), path, args->mode);
710 error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0);
716 linux_mkdir(struct thread *td, struct linux_mkdir_args *args)
721 LCONVPATHCREAT(td, args->path, &path);
725 printf(ARGS(mkdir, "%s, %d"), path, args->mode);
727 error = kern_mkdir(td, path, UIO_SYSSPACE, args->mode);
733 linux_mkdirat(struct thread *td, struct linux_mkdirat_args *args)
738 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
739 LCONVPATHCREAT_AT(td, args->pathname, &path, dfd);
743 printf(ARGS(mkdirat, "%s, %d"), path, args->mode);
745 error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode);
751 linux_rmdir(struct thread *td, struct linux_rmdir_args *args)
756 LCONVPATHEXIST(td, args->path, &path);
760 printf(ARGS(rmdir, "%s"), path);
762 error = kern_rmdir(td, path, UIO_SYSSPACE);
768 linux_rename(struct thread *td, struct linux_rename_args *args)
773 LCONVPATHEXIST(td, args->from, &from);
774 /* Expand LCONVPATHCREATE so that `from' can be freed on errors */
775 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
783 printf(ARGS(rename, "%s, %s"), from, to);
785 error = kern_rename(td, from, to, UIO_SYSSPACE);
792 linux_renameat(struct thread *td, struct linux_renameat_args *args)
795 int error, olddfd, newdfd;
797 olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd;
798 newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
799 LCONVPATHEXIST_AT(td, args->oldname, &from, olddfd);
800 /* Expand LCONVPATHCREATE so that `from' can be freed on errors */
801 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd);
808 if (ldebug(renameat))
809 printf(ARGS(renameat, "%s, %s"), from, to);
811 error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE);
818 linux_symlink(struct thread *td, struct linux_symlink_args *args)
823 LCONVPATHEXIST(td, args->path, &path);
824 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
825 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
833 printf(ARGS(symlink, "%s, %s"), path, to);
835 error = kern_symlink(td, path, to, UIO_SYSSPACE);
842 linux_symlinkat(struct thread *td, struct linux_symlinkat_args *args)
847 dfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
848 LCONVPATHEXIST_AT(td, args->oldname, &path, dfd);
849 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
850 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, dfd);
857 if (ldebug(symlinkat))
858 printf(ARGS(symlinkat, "%s, %s"), path, to);
861 error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE);
868 linux_readlink(struct thread *td, struct linux_readlink_args *args)
873 LCONVPATHEXIST(td, args->name, &name);
876 if (ldebug(readlink))
877 printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf,
880 error = kern_readlink(td, name, UIO_SYSSPACE, args->buf, UIO_USERSPACE,
887 linux_readlinkat(struct thread *td, struct linux_readlinkat_args *args)
892 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
893 LCONVPATHEXIST_AT(td, args->path, &name, dfd);
896 if (ldebug(readlinkat))
897 printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf,
901 error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf,
902 UIO_USERSPACE, args->bufsiz);
908 linux_truncate(struct thread *td, struct linux_truncate_args *args)
913 LCONVPATHEXIST(td, args->path, &path);
916 if (ldebug(truncate))
917 printf(ARGS(truncate, "%s, %ld"), path, (long)args->length);
920 error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
926 linux_truncate64(struct thread *td, struct linux_truncate64_args *args)
931 LCONVPATHEXIST(td, args->path, &path);
934 if (ldebug(truncate64))
935 printf(ARGS(truncate64, "%s, %jd"), path, args->length);
938 error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
943 linux_ftruncate(struct thread *td, struct linux_ftruncate_args *args)
945 struct ftruncate_args /* {
952 nuap.length = args->length;
953 return (sys_ftruncate(td, &nuap));
957 linux_link(struct thread *td, struct linux_link_args *args)
962 LCONVPATHEXIST(td, args->path, &path);
963 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
964 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
972 printf(ARGS(link, "%s, %s"), path, to);
974 error = kern_link(td, path, to, UIO_SYSSPACE);
981 linux_linkat(struct thread *td, struct linux_linkat_args *args)
984 int error, olddfd, newdfd;
987 * They really introduced flags argument which is forbidden to
990 if (args->flags != 0)
993 olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd;
994 newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
995 LCONVPATHEXIST_AT(td, args->oldname, &path, olddfd);
996 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
997 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd);
1005 printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path,
1006 args->newdfd, to, args->flags);
1009 error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, FOLLOW);
1016 linux_fdatasync(td, uap)
1018 struct linux_fdatasync_args *uap;
1020 struct fsync_args bsd;
1023 return sys_fsync(td, &bsd);
1027 linux_pread(td, uap)
1029 struct linux_pread_args *uap;
1031 struct pread_args bsd;
1037 bsd.nbyte = uap->nbyte;
1038 bsd.offset = uap->offset;
1040 error = sys_pread(td, &bsd);
1043 /* This seems to violate POSIX but linux does it */
1044 if ((error = fgetvp(td, uap->fd, CAP_READ, &vp)) != 0)
1046 if (vp->v_type == VDIR) {
1057 linux_pwrite(td, uap)
1059 struct linux_pwrite_args *uap;
1061 struct pwrite_args bsd;
1065 bsd.nbyte = uap->nbyte;
1066 bsd.offset = uap->offset;
1067 return sys_pwrite(td, &bsd);
1071 linux_mount(struct thread *td, struct linux_mount_args *args)
1073 struct ufs_args ufs;
1074 char fstypename[MFSNAMELEN];
1075 char mntonname[MNAMELEN], mntfromname[MNAMELEN];
1080 error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1,
1084 error = copyinstr(args->specialfile, mntfromname, MNAMELEN - 1, NULL);
1087 error = copyinstr(args->dir, mntonname, MNAMELEN - 1, NULL);
1093 printf(ARGS(mount, "%s, %s, %s"),
1094 fstypename, mntfromname, mntonname);
1097 if (strcmp(fstypename, "ext2") == 0) {
1098 strcpy(fstypename, "ext2fs");
1100 ufs.fspec = mntfromname;
1101 #define DEFAULT_ROOTID -2
1102 ufs.export.ex_root = DEFAULT_ROOTID;
1103 ufs.export.ex_flags =
1104 args->rwflag & LINUX_MS_RDONLY ? MNT_EXRDONLY : 0;
1105 } else if (strcmp(fstypename, "proc") == 0) {
1106 strcpy(fstypename, "linprocfs");
1108 } else if (strcmp(fstypename, "vfat") == 0) {
1109 strcpy(fstypename, "msdosfs");
1117 if ((args->rwflag & 0xffff0000) == 0xc0ed0000) {
1119 * Linux SYNC flag is not included; the closest equivalent
1120 * FreeBSD has is !ASYNC, which is our default.
1122 if (args->rwflag & LINUX_MS_RDONLY)
1123 fsflags |= MNT_RDONLY;
1124 if (args->rwflag & LINUX_MS_NOSUID)
1125 fsflags |= MNT_NOSUID;
1126 if (args->rwflag & LINUX_MS_NOEXEC)
1127 fsflags |= MNT_NOEXEC;
1128 if (args->rwflag & LINUX_MS_REMOUNT)
1129 fsflags |= MNT_UPDATE;
1132 if (strcmp(fstypename, "linprocfs") == 0) {
1133 error = kernel_vmount(fsflags,
1134 "fstype", fstypename,
1135 "fspath", mntonname,
1137 } else if (strcmp(fstypename, "msdosfs") == 0) {
1138 error = kernel_vmount(fsflags,
1139 "fstype", fstypename,
1140 "fspath", mntonname,
1141 "from", mntfromname,
1149 linux_oldumount(struct thread *td, struct linux_oldumount_args *args)
1151 struct linux_umount_args args2;
1153 args2.path = args->path;
1155 return (linux_umount(td, &args2));
1159 linux_umount(struct thread *td, struct linux_umount_args *args)
1161 struct unmount_args bsd;
1163 bsd.path = args->path;
1164 bsd.flags = args->flags; /* XXX correct? */
1165 return (sys_unmount(td, &bsd));
1169 * fcntl family of syscalls
1179 #if defined(__amd64__) && defined(COMPAT_LINUX32)
1185 linux_to_bsd_flock(struct l_flock *linux_flock, struct flock *bsd_flock)
1187 switch (linux_flock->l_type) {
1189 bsd_flock->l_type = F_RDLCK;
1192 bsd_flock->l_type = F_WRLCK;
1195 bsd_flock->l_type = F_UNLCK;
1198 bsd_flock->l_type = -1;
1201 bsd_flock->l_whence = linux_flock->l_whence;
1202 bsd_flock->l_start = (off_t)linux_flock->l_start;
1203 bsd_flock->l_len = (off_t)linux_flock->l_len;
1204 bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
1205 bsd_flock->l_sysid = 0;
1209 bsd_to_linux_flock(struct flock *bsd_flock, struct l_flock *linux_flock)
1211 switch (bsd_flock->l_type) {
1213 linux_flock->l_type = LINUX_F_RDLCK;
1216 linux_flock->l_type = LINUX_F_WRLCK;
1219 linux_flock->l_type = LINUX_F_UNLCK;
1222 linux_flock->l_whence = bsd_flock->l_whence;
1223 linux_flock->l_start = (l_off_t)bsd_flock->l_start;
1224 linux_flock->l_len = (l_off_t)bsd_flock->l_len;
1225 linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid;
1228 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1236 #if defined(__amd64__) && defined(COMPAT_LINUX32)
1242 linux_to_bsd_flock64(struct l_flock64 *linux_flock, struct flock *bsd_flock)
1244 switch (linux_flock->l_type) {
1246 bsd_flock->l_type = F_RDLCK;
1249 bsd_flock->l_type = F_WRLCK;
1252 bsd_flock->l_type = F_UNLCK;
1255 bsd_flock->l_type = -1;
1258 bsd_flock->l_whence = linux_flock->l_whence;
1259 bsd_flock->l_start = (off_t)linux_flock->l_start;
1260 bsd_flock->l_len = (off_t)linux_flock->l_len;
1261 bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
1262 bsd_flock->l_sysid = 0;
1266 bsd_to_linux_flock64(struct flock *bsd_flock, struct l_flock64 *linux_flock)
1268 switch (bsd_flock->l_type) {
1270 linux_flock->l_type = LINUX_F_RDLCK;
1273 linux_flock->l_type = LINUX_F_WRLCK;
1276 linux_flock->l_type = LINUX_F_UNLCK;
1279 linux_flock->l_whence = bsd_flock->l_whence;
1280 linux_flock->l_start = (l_loff_t)bsd_flock->l_start;
1281 linux_flock->l_len = (l_loff_t)bsd_flock->l_len;
1282 linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid;
1284 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1287 fcntl_common(struct thread *td, struct linux_fcntl64_args *args)
1289 struct l_flock linux_flock;
1290 struct flock bsd_flock;
1295 switch (args->cmd) {
1297 return (kern_fcntl(td, args->fd, F_DUPFD, args->arg));
1300 return (kern_fcntl(td, args->fd, F_GETFD, 0));
1303 return (kern_fcntl(td, args->fd, F_SETFD, args->arg));
1306 error = kern_fcntl(td, args->fd, F_GETFL, 0);
1307 result = td->td_retval[0];
1308 td->td_retval[0] = 0;
1309 if (result & O_RDONLY)
1310 td->td_retval[0] |= LINUX_O_RDONLY;
1311 if (result & O_WRONLY)
1312 td->td_retval[0] |= LINUX_O_WRONLY;
1313 if (result & O_RDWR)
1314 td->td_retval[0] |= LINUX_O_RDWR;
1315 if (result & O_NDELAY)
1316 td->td_retval[0] |= LINUX_O_NONBLOCK;
1317 if (result & O_APPEND)
1318 td->td_retval[0] |= LINUX_O_APPEND;
1319 if (result & O_FSYNC)
1320 td->td_retval[0] |= LINUX_O_SYNC;
1321 if (result & O_ASYNC)
1322 td->td_retval[0] |= LINUX_FASYNC;
1323 #ifdef LINUX_O_NOFOLLOW
1324 if (result & O_NOFOLLOW)
1325 td->td_retval[0] |= LINUX_O_NOFOLLOW;
1327 #ifdef LINUX_O_DIRECT
1328 if (result & O_DIRECT)
1329 td->td_retval[0] |= LINUX_O_DIRECT;
1335 if (args->arg & LINUX_O_NDELAY)
1337 if (args->arg & LINUX_O_APPEND)
1339 if (args->arg & LINUX_O_SYNC)
1341 if (args->arg & LINUX_FASYNC)
1343 #ifdef LINUX_O_NOFOLLOW
1344 if (args->arg & LINUX_O_NOFOLLOW)
1347 #ifdef LINUX_O_DIRECT
1348 if (args->arg & LINUX_O_DIRECT)
1351 return (kern_fcntl(td, args->fd, F_SETFL, arg));
1354 error = copyin((void *)args->arg, &linux_flock,
1355 sizeof(linux_flock));
1358 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1359 error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock);
1362 bsd_to_linux_flock(&bsd_flock, &linux_flock);
1363 return (copyout(&linux_flock, (void *)args->arg,
1364 sizeof(linux_flock)));
1367 error = copyin((void *)args->arg, &linux_flock,
1368 sizeof(linux_flock));
1371 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1372 return (kern_fcntl(td, args->fd, F_SETLK,
1373 (intptr_t)&bsd_flock));
1375 case LINUX_F_SETLKW:
1376 error = copyin((void *)args->arg, &linux_flock,
1377 sizeof(linux_flock));
1380 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1381 return (kern_fcntl(td, args->fd, F_SETLKW,
1382 (intptr_t)&bsd_flock));
1384 case LINUX_F_GETOWN:
1385 return (kern_fcntl(td, args->fd, F_GETOWN, 0));
1387 case LINUX_F_SETOWN:
1389 * XXX some Linux applications depend on F_SETOWN having no
1390 * significant effect for pipes (SIGIO is not delivered for
1391 * pipes under Linux-2.2.35 at least).
1393 error = fget(td, args->fd, CAP_FCNTL, &fp);
1396 if (fp->f_type == DTYPE_PIPE) {
1402 return (kern_fcntl(td, args->fd, F_SETOWN, args->arg));
1409 linux_fcntl(struct thread *td, struct linux_fcntl_args *args)
1411 struct linux_fcntl64_args args64;
1415 printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd);
1418 args64.fd = args->fd;
1419 args64.cmd = args->cmd;
1420 args64.arg = args->arg;
1421 return (fcntl_common(td, &args64));
1424 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1426 linux_fcntl64(struct thread *td, struct linux_fcntl64_args *args)
1428 struct l_flock64 linux_flock;
1429 struct flock bsd_flock;
1433 if (ldebug(fcntl64))
1434 printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd);
1437 switch (args->cmd) {
1438 case LINUX_F_GETLK64:
1439 error = copyin((void *)args->arg, &linux_flock,
1440 sizeof(linux_flock));
1443 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1444 error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock);
1447 bsd_to_linux_flock64(&bsd_flock, &linux_flock);
1448 return (copyout(&linux_flock, (void *)args->arg,
1449 sizeof(linux_flock)));
1451 case LINUX_F_SETLK64:
1452 error = copyin((void *)args->arg, &linux_flock,
1453 sizeof(linux_flock));
1456 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1457 return (kern_fcntl(td, args->fd, F_SETLK,
1458 (intptr_t)&bsd_flock));
1460 case LINUX_F_SETLKW64:
1461 error = copyin((void *)args->arg, &linux_flock,
1462 sizeof(linux_flock));
1465 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1466 return (kern_fcntl(td, args->fd, F_SETLKW,
1467 (intptr_t)&bsd_flock));
1470 return (fcntl_common(td, args));
1472 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1475 linux_chown(struct thread *td, struct linux_chown_args *args)
1480 LCONVPATHEXIST(td, args->path, &path);
1484 printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid);
1486 error = kern_chown(td, path, UIO_SYSSPACE, args->uid, args->gid);
1492 linux_fchownat(struct thread *td, struct linux_fchownat_args *args)
1495 int error, dfd, follow;
1497 if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW)
1500 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
1501 LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
1504 if (ldebug(fchownat))
1505 printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid);
1508 follow = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 :
1509 AT_SYMLINK_NOFOLLOW;
1510 error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid,
1517 linux_lchown(struct thread *td, struct linux_lchown_args *args)
1522 LCONVPATHEXIST(td, args->path, &path);
1526 printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid);
1528 error = kern_lchown(td, path, UIO_SYSSPACE, args->uid, args->gid);
1534 convert_fadvice(int advice)
1537 case LINUX_POSIX_FADV_NORMAL:
1538 return (POSIX_FADV_NORMAL);
1539 case LINUX_POSIX_FADV_RANDOM:
1540 return (POSIX_FADV_RANDOM);
1541 case LINUX_POSIX_FADV_SEQUENTIAL:
1542 return (POSIX_FADV_SEQUENTIAL);
1543 case LINUX_POSIX_FADV_WILLNEED:
1544 return (POSIX_FADV_WILLNEED);
1545 case LINUX_POSIX_FADV_DONTNEED:
1546 return (POSIX_FADV_DONTNEED);
1547 case LINUX_POSIX_FADV_NOREUSE:
1548 return (POSIX_FADV_NOREUSE);
1555 linux_fadvise64(struct thread *td, struct linux_fadvise64_args *args)
1559 advice = convert_fadvice(args->advice);
1562 return (kern_posix_fadvise(td, args->fd, args->offset, args->len,
1567 linux_fadvise64_64(struct thread *td, struct linux_fadvise64_64_args *args)
1571 advice = convert_fadvice(args->advice);
1574 return (kern_posix_fadvise(td, args->fd, args->offset, args->len,
1579 linux_pipe(struct thread *td, struct linux_pipe_args *args)
1586 printf(ARGS(pipe, "*"));
1589 error = do_pipe(td, fildes, 0);
1593 /* XXX: Close descriptors on error. */
1594 return (copyout(fildes, args->pipefds, sizeof(fildes)));
1598 linux_pipe2(struct thread *td, struct linux_pipe2_args *args)
1605 printf(ARGS(pipe2, "*, %d"), args->flags);
1608 if ((args->flags & ~(LINUX_O_NONBLOCK | LINUX_O_CLOEXEC)) != 0)
1612 if ((args->flags & LINUX_O_NONBLOCK) != 0)
1613 flags |= O_NONBLOCK;
1614 if ((args->flags & LINUX_O_CLOEXEC) != 0)
1616 error = do_pipe(td, fildes, flags);
1620 /* XXX: Close descriptors on error. */
1621 return (copyout(fildes, args->pipefds, sizeof(fildes)));