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 linux_creat(struct thread *td, struct linux_creat_args *args)
78 LCONVPATHEXIST(td, args->path, &path);
82 printf(ARGS(creat, "%s, %d"), path, args->mode);
84 error = kern_open(td, path, UIO_SYSSPACE, O_WRONLY | O_CREAT | O_TRUNC,
92 linux_common_open(struct thread *td, int dirfd, char *path, int l_flags, int mode)
94 struct proc *p = td->td_proc;
100 switch (l_flags & LINUX_O_ACCMODE) {
102 bsd_flags |= O_WRONLY;
108 bsd_flags |= O_RDONLY;
110 if (l_flags & LINUX_O_NDELAY)
111 bsd_flags |= O_NONBLOCK;
112 if (l_flags & LINUX_O_APPEND)
113 bsd_flags |= O_APPEND;
114 if (l_flags & LINUX_O_SYNC)
115 bsd_flags |= O_FSYNC;
116 if (l_flags & LINUX_O_NONBLOCK)
117 bsd_flags |= O_NONBLOCK;
118 if (l_flags & LINUX_FASYNC)
119 bsd_flags |= O_ASYNC;
120 if (l_flags & LINUX_O_CREAT)
121 bsd_flags |= O_CREAT;
122 if (l_flags & LINUX_O_TRUNC)
123 bsd_flags |= O_TRUNC;
124 if (l_flags & LINUX_O_EXCL)
126 if (l_flags & LINUX_O_NOCTTY)
127 bsd_flags |= O_NOCTTY;
128 if (l_flags & LINUX_O_DIRECT)
129 bsd_flags |= O_DIRECT;
130 if (l_flags & LINUX_O_NOFOLLOW)
131 bsd_flags |= O_NOFOLLOW;
132 if (l_flags & LINUX_O_DIRECTORY)
133 bsd_flags |= O_DIRECTORY;
134 /* XXX LINUX_O_NOATIME: unable to be easily implemented. */
136 error = kern_openat(td, dirfd, path, UIO_SYSSPACE, bsd_flags, mode);
139 fd = td->td_retval[0];
141 * XXX In between kern_open() and fget(), another process
142 * having the same filedesc could use that fd without
145 error = fget(td, fd, CAP_IOCTL, &fp);
147 sx_slock(&proctree_lock);
149 if (!(bsd_flags & O_NOCTTY) &&
150 SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
152 sx_unlock(&proctree_lock);
153 if (fp->f_type == DTYPE_VNODE)
154 (void) fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0,
158 sx_sunlock(&proctree_lock);
162 * XXX as above, fdrop()/kern_close() pair is racy.
171 printf(LMSG("open returns error %d"), error);
178 linux_openat(struct thread *td, struct linux_openat_args *args)
183 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
184 if (args->flags & LINUX_O_CREAT)
185 LCONVPATH_AT(td, args->filename, &path, 1, dfd);
187 LCONVPATH_AT(td, args->filename, &path, 0, dfd);
190 printf(ARGS(openat, "%i, %s, 0x%x, 0x%x"), args->dfd,
191 path, args->flags, args->mode);
193 return (linux_common_open(td, dfd, path, args->flags, args->mode));
197 linux_open(struct thread *td, struct linux_open_args *args)
201 if (args->flags & LINUX_O_CREAT)
202 LCONVPATHCREAT(td, args->path, &path);
204 LCONVPATHEXIST(td, args->path, &path);
208 printf(ARGS(open, "%s, 0x%x, 0x%x"),
209 path, args->flags, args->mode);
212 return (linux_common_open(td, AT_FDCWD, path, args->flags, args->mode));
216 linux_lseek(struct thread *td, struct linux_lseek_args *args)
219 struct lseek_args /* {
229 printf(ARGS(lseek, "%d, %ld, %d"),
230 args->fdes, (long)args->off, args->whence);
232 tmp_args.fd = args->fdes;
233 tmp_args.offset = (off_t)args->off;
234 tmp_args.whence = args->whence;
235 error = sys_lseek(td, &tmp_args);
240 linux_llseek(struct thread *td, struct linux_llseek_args *args)
242 struct lseek_args bsd_args;
248 printf(ARGS(llseek, "%d, %d:%d, %d"),
249 args->fd, args->ohigh, args->olow, args->whence);
251 off = (args->olow) | (((off_t) args->ohigh) << 32);
253 bsd_args.fd = args->fd;
254 bsd_args.offset = off;
255 bsd_args.whence = args->whence;
257 if ((error = sys_lseek(td, &bsd_args)))
260 if ((error = copyout(td->td_retval, args->res, sizeof (off_t))))
263 td->td_retval[0] = 0;
268 linux_readdir(struct thread *td, struct linux_readdir_args *args)
270 struct linux_getdents_args lda;
273 lda.dent = args->dent;
275 return linux_getdents(td, &lda);
279 * Note that linux_getdents(2) and linux_getdents64(2) have the same
280 * arguments. They only differ in the definition of struct dirent they
281 * operate on. We use this to common the code, with the exception of
282 * accessing struct dirent. Note that linux_readdir(2) is implemented
283 * by means of linux_getdents(2). In this case we never operate on
284 * struct dirent64 and thus don't need to handle it...
291 char d_name[LINUX_NAME_MAX + 1];
299 char d_name[LINUX_NAME_MAX + 1];
303 * Linux uses the last byte in the dirent buffer to store d_type,
304 * at least glibc-2.7 requires it. That is why l_dirent is padded with 2 bytes.
306 #define LINUX_RECLEN(namlen) \
307 roundup((offsetof(struct l_dirent, d_name) + (namlen) + 2), \
310 #define LINUX_RECLEN64(namlen) \
311 roundup((offsetof(struct l_dirent64, d_name) + (namlen) + 1), \
314 #define LINUX_MAXRECLEN max(LINUX_RECLEN(LINUX_NAME_MAX), \
315 LINUX_RECLEN64(LINUX_NAME_MAX))
316 #define LINUX_DIRBLKSIZ 512
319 getdents_common(struct thread *td, struct linux_getdents64_args *args,
324 caddr_t inp, buf; /* BSD-format */
325 int len, reclen; /* BSD-format */
326 caddr_t outp; /* Linux-format */
327 int resid, linuxreclen=0; /* Linux-format */
328 caddr_t lbuf; /* Linux-format */
333 struct l_dirent *linux_dirent;
334 struct l_dirent64 *linux_dirent64;
335 int buflen, error, eofflag, nbytes, justone;
336 u_long *cookies = NULL, *cookiep;
337 int ncookies, vfslocked;
339 nbytes = args->count;
341 /* readdir(2) case. Always struct dirent. */
344 nbytes = sizeof(*linux_dirent);
349 if ((error = getvnode(td->td_proc->p_fd, args->fd, CAP_READ, &fp)) != 0)
352 if ((fp->f_flag & FREAD) == 0) {
358 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
359 if (vp->v_type != VDIR) {
360 VFS_UNLOCK_GIANT(vfslocked);
367 buflen = max(LINUX_DIRBLKSIZ, nbytes);
368 buflen = min(buflen, MAXBSIZE);
369 buf = malloc(buflen, M_TEMP, M_WAITOK);
370 lbuf = malloc(LINUX_MAXRECLEN, M_TEMP, M_WAITOK | M_ZERO);
371 vn_lock(vp, LK_SHARED | LK_RETRY);
374 aiov.iov_len = buflen;
375 auio.uio_iov = &aiov;
377 auio.uio_rw = UIO_READ;
378 auio.uio_segflg = UIO_SYSSPACE;
380 auio.uio_resid = buflen;
381 auio.uio_offset = off;
384 free(cookies, M_TEMP);
390 * Do directory search MAC check using non-cached credentials.
392 if ((error = mac_vnode_check_readdir(td->td_ucred, vp)))
395 if ((error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies,
400 outp = (caddr_t)args->dirent;
402 if ((len = buflen - auio.uio_resid) <= 0)
409 * When using cookies, the vfs has the option of reading from
410 * a different offset than that supplied (UFS truncates the
411 * offset to a block boundary to make sure that it never reads
412 * partway through a directory entry, even if the directory
413 * has been compacted).
415 while (len > 0 && ncookies > 0 && *cookiep <= off) {
416 bdp = (struct dirent *) inp;
417 len -= bdp->d_reclen;
418 inp += bdp->d_reclen;
425 if (cookiep && ncookies == 0)
427 bdp = (struct dirent *) inp;
428 reclen = bdp->d_reclen;
434 if (bdp->d_fileno == 0) {
446 linuxreclen = (is64bit)
447 ? LINUX_RECLEN64(bdp->d_namlen)
448 : LINUX_RECLEN(bdp->d_namlen);
450 if (reclen > len || resid < linuxreclen) {
456 /* readdir(2) case. */
457 linux_dirent = (struct l_dirent*)lbuf;
458 linux_dirent->d_ino = bdp->d_fileno;
459 linux_dirent->d_off = (l_off_t)linuxreclen;
460 linux_dirent->d_reclen = (l_ushort)bdp->d_namlen;
461 strlcpy(linux_dirent->d_name, bdp->d_name,
462 linuxreclen - offsetof(struct l_dirent, d_name));
463 error = copyout(linux_dirent, outp, linuxreclen);
466 linux_dirent64 = (struct l_dirent64*)lbuf;
467 linux_dirent64->d_ino = bdp->d_fileno;
468 linux_dirent64->d_off = (cookiep)
470 : (l_off_t)(off + reclen);
471 linux_dirent64->d_reclen = (l_ushort)linuxreclen;
472 linux_dirent64->d_type = bdp->d_type;
473 strlcpy(linux_dirent64->d_name, bdp->d_name,
474 linuxreclen - offsetof(struct l_dirent64, d_name));
475 error = copyout(linux_dirent64, outp, linuxreclen);
476 } else if (!justone) {
477 linux_dirent = (struct l_dirent*)lbuf;
478 linux_dirent->d_ino = bdp->d_fileno;
479 linux_dirent->d_off = (cookiep)
481 : (l_off_t)(off + reclen);
482 linux_dirent->d_reclen = (l_ushort)linuxreclen;
484 * Copy d_type to last byte of l_dirent buffer
486 lbuf[linuxreclen-1] = bdp->d_type;
487 strlcpy(linux_dirent->d_name, bdp->d_name,
488 linuxreclen - offsetof(struct l_dirent, d_name)-1);
489 error = copyout(linux_dirent, outp, linuxreclen);
503 resid -= linuxreclen;
509 if (outp == (caddr_t)args->dirent) {
516 nbytes = resid + linuxreclen;
519 td->td_retval[0] = nbytes - resid;
523 free(cookies, M_TEMP);
526 VFS_UNLOCK_GIANT(vfslocked);
534 linux_getdents(struct thread *td, struct linux_getdents_args *args)
538 if (ldebug(getdents))
539 printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count);
542 return (getdents_common(td, (struct linux_getdents64_args*)args, 0));
546 linux_getdents64(struct thread *td, struct linux_getdents64_args *args)
550 if (ldebug(getdents64))
551 printf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count);
554 return (getdents_common(td, args, 1));
558 * These exist mainly for hooks for doing /compat/linux translation.
562 linux_access(struct thread *td, struct linux_access_args *args)
567 /* linux convention */
568 if (args->flags & ~(F_OK | X_OK | W_OK | R_OK))
571 LCONVPATHEXIST(td, args->path, &path);
575 printf(ARGS(access, "%s, %d"), path, args->flags);
577 error = kern_access(td, path, UIO_SYSSPACE, args->flags);
584 linux_faccessat(struct thread *td, struct linux_faccessat_args *args)
589 /* linux convention */
590 if (args->mode & ~(F_OK | X_OK | W_OK | R_OK))
593 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
594 LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
598 printf(ARGS(access, "%s, %d"), path, args->mode);
601 error = kern_accessat(td, dfd, path, UIO_SYSSPACE, 0 /* XXX */,
609 linux_unlink(struct thread *td, struct linux_unlink_args *args)
615 LCONVPATHEXIST(td, args->path, &path);
619 printf(ARGS(unlink, "%s"), path);
622 error = kern_unlink(td, path, UIO_SYSSPACE);
624 /* Introduce POSIX noncompliant behaviour of Linux */
625 if (kern_stat(td, path, UIO_SYSSPACE, &st) == 0)
626 if (S_ISDIR(st.st_mode))
633 linux_unlinkat(struct thread *td, struct linux_unlinkat_args *args)
639 if (args->flag & ~LINUX_AT_REMOVEDIR)
642 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
643 LCONVPATHEXIST_AT(td, args->pathname, &path, dfd);
646 if (ldebug(unlinkat))
647 printf(ARGS(unlinkat, "%s"), path);
650 if (args->flag & LINUX_AT_REMOVEDIR)
651 error = kern_rmdirat(td, dfd, path, UIO_SYSSPACE);
653 error = kern_unlinkat(td, dfd, path, UIO_SYSSPACE, 0);
654 if (error == EPERM && !(args->flag & LINUX_AT_REMOVEDIR)) {
655 /* Introduce POSIX noncompliant behaviour of Linux */
656 if (kern_statat(td, AT_SYMLINK_NOFOLLOW, dfd, path,
657 UIO_SYSSPACE, &st) == 0 && S_ISDIR(st.st_mode))
664 linux_chdir(struct thread *td, struct linux_chdir_args *args)
669 LCONVPATHEXIST(td, args->path, &path);
673 printf(ARGS(chdir, "%s"), path);
675 error = kern_chdir(td, path, UIO_SYSSPACE);
681 linux_chmod(struct thread *td, struct linux_chmod_args *args)
686 LCONVPATHEXIST(td, args->path, &path);
690 printf(ARGS(chmod, "%s, %d"), path, args->mode);
692 error = kern_chmod(td, path, UIO_SYSSPACE, args->mode);
698 linux_fchmodat(struct thread *td, struct linux_fchmodat_args *args)
703 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
704 LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
707 if (ldebug(fchmodat))
708 printf(ARGS(fchmodat, "%s, %d"), path, args->mode);
711 error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0);
717 linux_mkdir(struct thread *td, struct linux_mkdir_args *args)
722 LCONVPATHCREAT(td, args->path, &path);
726 printf(ARGS(mkdir, "%s, %d"), path, args->mode);
728 error = kern_mkdir(td, path, UIO_SYSSPACE, args->mode);
734 linux_mkdirat(struct thread *td, struct linux_mkdirat_args *args)
739 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
740 LCONVPATHCREAT_AT(td, args->pathname, &path, dfd);
744 printf(ARGS(mkdirat, "%s, %d"), path, args->mode);
746 error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode);
752 linux_rmdir(struct thread *td, struct linux_rmdir_args *args)
757 LCONVPATHEXIST(td, args->path, &path);
761 printf(ARGS(rmdir, "%s"), path);
763 error = kern_rmdir(td, path, UIO_SYSSPACE);
769 linux_rename(struct thread *td, struct linux_rename_args *args)
774 LCONVPATHEXIST(td, args->from, &from);
775 /* Expand LCONVPATHCREATE so that `from' can be freed on errors */
776 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
784 printf(ARGS(rename, "%s, %s"), from, to);
786 error = kern_rename(td, from, to, UIO_SYSSPACE);
793 linux_renameat(struct thread *td, struct linux_renameat_args *args)
796 int error, olddfd, newdfd;
798 olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd;
799 newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
800 LCONVPATHEXIST_AT(td, args->oldname, &from, olddfd);
801 /* Expand LCONVPATHCREATE so that `from' can be freed on errors */
802 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd);
809 if (ldebug(renameat))
810 printf(ARGS(renameat, "%s, %s"), from, to);
812 error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE);
819 linux_symlink(struct thread *td, struct linux_symlink_args *args)
824 LCONVPATHEXIST(td, args->path, &path);
825 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
826 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
834 printf(ARGS(symlink, "%s, %s"), path, to);
836 error = kern_symlink(td, path, to, UIO_SYSSPACE);
843 linux_symlinkat(struct thread *td, struct linux_symlinkat_args *args)
848 dfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
849 LCONVPATHEXIST_AT(td, args->oldname, &path, dfd);
850 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
851 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, dfd);
858 if (ldebug(symlinkat))
859 printf(ARGS(symlinkat, "%s, %s"), path, to);
862 error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE);
869 linux_readlink(struct thread *td, struct linux_readlink_args *args)
874 LCONVPATHEXIST(td, args->name, &name);
877 if (ldebug(readlink))
878 printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf,
881 error = kern_readlink(td, name, UIO_SYSSPACE, args->buf, UIO_USERSPACE,
888 linux_readlinkat(struct thread *td, struct linux_readlinkat_args *args)
893 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
894 LCONVPATHEXIST_AT(td, args->path, &name, dfd);
897 if (ldebug(readlinkat))
898 printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf,
902 error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf,
903 UIO_USERSPACE, args->bufsiz);
909 linux_truncate(struct thread *td, struct linux_truncate_args *args)
914 LCONVPATHEXIST(td, args->path, &path);
917 if (ldebug(truncate))
918 printf(ARGS(truncate, "%s, %ld"), path, (long)args->length);
921 error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
927 linux_truncate64(struct thread *td, struct linux_truncate64_args *args)
932 LCONVPATHEXIST(td, args->path, &path);
935 if (ldebug(truncate64))
936 printf(ARGS(truncate64, "%s, %jd"), path, args->length);
939 error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
944 linux_ftruncate(struct thread *td, struct linux_ftruncate_args *args)
946 struct ftruncate_args /* {
953 nuap.length = args->length;
954 return (sys_ftruncate(td, &nuap));
958 linux_link(struct thread *td, struct linux_link_args *args)
963 LCONVPATHEXIST(td, args->path, &path);
964 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
965 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
973 printf(ARGS(link, "%s, %s"), path, to);
975 error = kern_link(td, path, to, UIO_SYSSPACE);
982 linux_linkat(struct thread *td, struct linux_linkat_args *args)
985 int error, olddfd, newdfd;
988 * They really introduced flags argument which is forbidden to
991 if (args->flags != 0)
994 olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd;
995 newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
996 LCONVPATHEXIST_AT(td, args->oldname, &path, olddfd);
997 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
998 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd);
1006 printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path,
1007 args->newdfd, to, args->flags);
1010 error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, FOLLOW);
1017 linux_fdatasync(td, uap)
1019 struct linux_fdatasync_args *uap;
1021 struct fsync_args bsd;
1024 return sys_fsync(td, &bsd);
1028 linux_pread(td, uap)
1030 struct linux_pread_args *uap;
1032 struct pread_args bsd;
1038 bsd.nbyte = uap->nbyte;
1039 bsd.offset = uap->offset;
1041 error = sys_pread(td, &bsd);
1044 /* This seems to violate POSIX but linux does it */
1045 if ((error = fgetvp(td, uap->fd, CAP_READ, &vp)) != 0)
1047 if (vp->v_type == VDIR) {
1058 linux_pwrite(td, uap)
1060 struct linux_pwrite_args *uap;
1062 struct pwrite_args bsd;
1066 bsd.nbyte = uap->nbyte;
1067 bsd.offset = uap->offset;
1068 return sys_pwrite(td, &bsd);
1072 linux_mount(struct thread *td, struct linux_mount_args *args)
1074 struct ufs_args ufs;
1075 char fstypename[MFSNAMELEN];
1076 char mntonname[MNAMELEN], mntfromname[MNAMELEN];
1081 error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1,
1085 error = copyinstr(args->specialfile, mntfromname, MNAMELEN - 1, NULL);
1088 error = copyinstr(args->dir, mntonname, MNAMELEN - 1, NULL);
1094 printf(ARGS(mount, "%s, %s, %s"),
1095 fstypename, mntfromname, mntonname);
1098 if (strcmp(fstypename, "ext2") == 0) {
1099 strcpy(fstypename, "ext2fs");
1101 ufs.fspec = mntfromname;
1102 #define DEFAULT_ROOTID -2
1103 ufs.export.ex_root = DEFAULT_ROOTID;
1104 ufs.export.ex_flags =
1105 args->rwflag & LINUX_MS_RDONLY ? MNT_EXRDONLY : 0;
1106 } else if (strcmp(fstypename, "proc") == 0) {
1107 strcpy(fstypename, "linprocfs");
1109 } else if (strcmp(fstypename, "vfat") == 0) {
1110 strcpy(fstypename, "msdosfs");
1118 if ((args->rwflag & 0xffff0000) == 0xc0ed0000) {
1120 * Linux SYNC flag is not included; the closest equivalent
1121 * FreeBSD has is !ASYNC, which is our default.
1123 if (args->rwflag & LINUX_MS_RDONLY)
1124 fsflags |= MNT_RDONLY;
1125 if (args->rwflag & LINUX_MS_NOSUID)
1126 fsflags |= MNT_NOSUID;
1127 if (args->rwflag & LINUX_MS_NOEXEC)
1128 fsflags |= MNT_NOEXEC;
1129 if (args->rwflag & LINUX_MS_REMOUNT)
1130 fsflags |= MNT_UPDATE;
1133 if (strcmp(fstypename, "linprocfs") == 0) {
1134 error = kernel_vmount(fsflags,
1135 "fstype", fstypename,
1136 "fspath", mntonname,
1138 } else if (strcmp(fstypename, "msdosfs") == 0) {
1139 error = kernel_vmount(fsflags,
1140 "fstype", fstypename,
1141 "fspath", mntonname,
1142 "from", mntfromname,
1150 linux_oldumount(struct thread *td, struct linux_oldumount_args *args)
1152 struct linux_umount_args args2;
1154 args2.path = args->path;
1156 return (linux_umount(td, &args2));
1160 linux_umount(struct thread *td, struct linux_umount_args *args)
1162 struct unmount_args bsd;
1164 bsd.path = args->path;
1165 bsd.flags = args->flags; /* XXX correct? */
1166 return (sys_unmount(td, &bsd));
1170 * fcntl family of syscalls
1180 #if defined(__amd64__) && defined(COMPAT_LINUX32)
1186 linux_to_bsd_flock(struct l_flock *linux_flock, struct flock *bsd_flock)
1188 switch (linux_flock->l_type) {
1190 bsd_flock->l_type = F_RDLCK;
1193 bsd_flock->l_type = F_WRLCK;
1196 bsd_flock->l_type = F_UNLCK;
1199 bsd_flock->l_type = -1;
1202 bsd_flock->l_whence = linux_flock->l_whence;
1203 bsd_flock->l_start = (off_t)linux_flock->l_start;
1204 bsd_flock->l_len = (off_t)linux_flock->l_len;
1205 bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
1206 bsd_flock->l_sysid = 0;
1210 bsd_to_linux_flock(struct flock *bsd_flock, struct l_flock *linux_flock)
1212 switch (bsd_flock->l_type) {
1214 linux_flock->l_type = LINUX_F_RDLCK;
1217 linux_flock->l_type = LINUX_F_WRLCK;
1220 linux_flock->l_type = LINUX_F_UNLCK;
1223 linux_flock->l_whence = bsd_flock->l_whence;
1224 linux_flock->l_start = (l_off_t)bsd_flock->l_start;
1225 linux_flock->l_len = (l_off_t)bsd_flock->l_len;
1226 linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid;
1229 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1237 #if defined(__amd64__) && defined(COMPAT_LINUX32)
1243 linux_to_bsd_flock64(struct l_flock64 *linux_flock, struct flock *bsd_flock)
1245 switch (linux_flock->l_type) {
1247 bsd_flock->l_type = F_RDLCK;
1250 bsd_flock->l_type = F_WRLCK;
1253 bsd_flock->l_type = F_UNLCK;
1256 bsd_flock->l_type = -1;
1259 bsd_flock->l_whence = linux_flock->l_whence;
1260 bsd_flock->l_start = (off_t)linux_flock->l_start;
1261 bsd_flock->l_len = (off_t)linux_flock->l_len;
1262 bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
1263 bsd_flock->l_sysid = 0;
1267 bsd_to_linux_flock64(struct flock *bsd_flock, struct l_flock64 *linux_flock)
1269 switch (bsd_flock->l_type) {
1271 linux_flock->l_type = LINUX_F_RDLCK;
1274 linux_flock->l_type = LINUX_F_WRLCK;
1277 linux_flock->l_type = LINUX_F_UNLCK;
1280 linux_flock->l_whence = bsd_flock->l_whence;
1281 linux_flock->l_start = (l_loff_t)bsd_flock->l_start;
1282 linux_flock->l_len = (l_loff_t)bsd_flock->l_len;
1283 linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid;
1285 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1288 fcntl_common(struct thread *td, struct linux_fcntl64_args *args)
1290 struct l_flock linux_flock;
1291 struct flock bsd_flock;
1296 switch (args->cmd) {
1298 return (kern_fcntl(td, args->fd, F_DUPFD, args->arg));
1301 return (kern_fcntl(td, args->fd, F_GETFD, 0));
1304 return (kern_fcntl(td, args->fd, F_SETFD, args->arg));
1307 error = kern_fcntl(td, args->fd, F_GETFL, 0);
1308 result = td->td_retval[0];
1309 td->td_retval[0] = 0;
1310 if (result & O_RDONLY)
1311 td->td_retval[0] |= LINUX_O_RDONLY;
1312 if (result & O_WRONLY)
1313 td->td_retval[0] |= LINUX_O_WRONLY;
1314 if (result & O_RDWR)
1315 td->td_retval[0] |= LINUX_O_RDWR;
1316 if (result & O_NDELAY)
1317 td->td_retval[0] |= LINUX_O_NONBLOCK;
1318 if (result & O_APPEND)
1319 td->td_retval[0] |= LINUX_O_APPEND;
1320 if (result & O_FSYNC)
1321 td->td_retval[0] |= LINUX_O_SYNC;
1322 if (result & O_ASYNC)
1323 td->td_retval[0] |= LINUX_FASYNC;
1324 #ifdef LINUX_O_NOFOLLOW
1325 if (result & O_NOFOLLOW)
1326 td->td_retval[0] |= LINUX_O_NOFOLLOW;
1328 #ifdef LINUX_O_DIRECT
1329 if (result & O_DIRECT)
1330 td->td_retval[0] |= LINUX_O_DIRECT;
1336 if (args->arg & LINUX_O_NDELAY)
1338 if (args->arg & LINUX_O_APPEND)
1340 if (args->arg & LINUX_O_SYNC)
1342 if (args->arg & LINUX_FASYNC)
1344 #ifdef LINUX_O_NOFOLLOW
1345 if (args->arg & LINUX_O_NOFOLLOW)
1348 #ifdef LINUX_O_DIRECT
1349 if (args->arg & LINUX_O_DIRECT)
1352 return (kern_fcntl(td, args->fd, F_SETFL, arg));
1355 error = copyin((void *)args->arg, &linux_flock,
1356 sizeof(linux_flock));
1359 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1360 error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock);
1363 bsd_to_linux_flock(&bsd_flock, &linux_flock);
1364 return (copyout(&linux_flock, (void *)args->arg,
1365 sizeof(linux_flock)));
1368 error = copyin((void *)args->arg, &linux_flock,
1369 sizeof(linux_flock));
1372 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1373 return (kern_fcntl(td, args->fd, F_SETLK,
1374 (intptr_t)&bsd_flock));
1376 case LINUX_F_SETLKW:
1377 error = copyin((void *)args->arg, &linux_flock,
1378 sizeof(linux_flock));
1381 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1382 return (kern_fcntl(td, args->fd, F_SETLKW,
1383 (intptr_t)&bsd_flock));
1385 case LINUX_F_GETOWN:
1386 return (kern_fcntl(td, args->fd, F_GETOWN, 0));
1388 case LINUX_F_SETOWN:
1390 * XXX some Linux applications depend on F_SETOWN having no
1391 * significant effect for pipes (SIGIO is not delivered for
1392 * pipes under Linux-2.2.35 at least).
1394 error = fget(td, args->fd, CAP_FCNTL, &fp);
1397 if (fp->f_type == DTYPE_PIPE) {
1403 return (kern_fcntl(td, args->fd, F_SETOWN, args->arg));
1410 linux_fcntl(struct thread *td, struct linux_fcntl_args *args)
1412 struct linux_fcntl64_args args64;
1416 printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd);
1419 args64.fd = args->fd;
1420 args64.cmd = args->cmd;
1421 args64.arg = args->arg;
1422 return (fcntl_common(td, &args64));
1425 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1427 linux_fcntl64(struct thread *td, struct linux_fcntl64_args *args)
1429 struct l_flock64 linux_flock;
1430 struct flock bsd_flock;
1434 if (ldebug(fcntl64))
1435 printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd);
1438 switch (args->cmd) {
1439 case LINUX_F_GETLK64:
1440 error = copyin((void *)args->arg, &linux_flock,
1441 sizeof(linux_flock));
1444 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1445 error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock);
1448 bsd_to_linux_flock64(&bsd_flock, &linux_flock);
1449 return (copyout(&linux_flock, (void *)args->arg,
1450 sizeof(linux_flock)));
1452 case LINUX_F_SETLK64:
1453 error = copyin((void *)args->arg, &linux_flock,
1454 sizeof(linux_flock));
1457 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1458 return (kern_fcntl(td, args->fd, F_SETLK,
1459 (intptr_t)&bsd_flock));
1461 case LINUX_F_SETLKW64:
1462 error = copyin((void *)args->arg, &linux_flock,
1463 sizeof(linux_flock));
1466 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1467 return (kern_fcntl(td, args->fd, F_SETLKW,
1468 (intptr_t)&bsd_flock));
1471 return (fcntl_common(td, args));
1473 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1476 linux_chown(struct thread *td, struct linux_chown_args *args)
1481 LCONVPATHEXIST(td, args->path, &path);
1485 printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid);
1487 error = kern_chown(td, path, UIO_SYSSPACE, args->uid, args->gid);
1493 linux_fchownat(struct thread *td, struct linux_fchownat_args *args)
1496 int error, dfd, follow;
1498 if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW)
1501 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
1502 LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
1505 if (ldebug(fchownat))
1506 printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid);
1509 follow = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 :
1510 AT_SYMLINK_NOFOLLOW;
1511 error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid,
1518 linux_lchown(struct thread *td, struct linux_lchown_args *args)
1523 LCONVPATHEXIST(td, args->path, &path);
1527 printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid);
1529 error = kern_lchown(td, path, UIO_SYSSPACE, args->uid, args->gid);