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/capsicum.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>
59 #include <machine/../linux32/linux.h>
60 #include <machine/../linux32/linux32_proto.h>
62 #include <machine/../linux/linux.h>
63 #include <machine/../linux/linux_proto.h>
65 #include <compat/linux/linux_misc.h>
66 #include <compat/linux/linux_util.h>
67 #include <compat/linux/linux_file.h>
70 linux_creat(struct thread *td, struct linux_creat_args *args)
75 LCONVPATHEXIST(td, args->path, &path);
79 printf(ARGS(creat, "%s, %d"), path, args->mode);
81 error = kern_open(td, path, UIO_SYSSPACE, O_WRONLY | O_CREAT | O_TRUNC,
89 linux_common_open(struct thread *td, int dirfd, char *path, int l_flags, int mode)
92 struct proc *p = td->td_proc;
98 switch (l_flags & LINUX_O_ACCMODE) {
100 bsd_flags |= O_WRONLY;
106 bsd_flags |= O_RDONLY;
108 if (l_flags & LINUX_O_NDELAY)
109 bsd_flags |= O_NONBLOCK;
110 if (l_flags & LINUX_O_APPEND)
111 bsd_flags |= O_APPEND;
112 if (l_flags & LINUX_O_SYNC)
113 bsd_flags |= O_FSYNC;
114 if (l_flags & LINUX_O_NONBLOCK)
115 bsd_flags |= O_NONBLOCK;
116 if (l_flags & LINUX_FASYNC)
117 bsd_flags |= O_ASYNC;
118 if (l_flags & LINUX_O_CREAT)
119 bsd_flags |= O_CREAT;
120 if (l_flags & LINUX_O_TRUNC)
121 bsd_flags |= O_TRUNC;
122 if (l_flags & LINUX_O_EXCL)
124 if (l_flags & LINUX_O_NOCTTY)
125 bsd_flags |= O_NOCTTY;
126 if (l_flags & LINUX_O_DIRECT)
127 bsd_flags |= O_DIRECT;
128 if (l_flags & LINUX_O_NOFOLLOW)
129 bsd_flags |= O_NOFOLLOW;
130 if (l_flags & LINUX_O_DIRECTORY)
131 bsd_flags |= O_DIRECTORY;
132 /* XXX LINUX_O_NOATIME: unable to be easily implemented. */
134 error = kern_openat(td, dirfd, path, UIO_SYSSPACE, bsd_flags, mode);
138 if (bsd_flags & O_NOCTTY)
142 * XXX In between kern_open() and fget(), another process
143 * having the same filedesc could use that fd without
146 fd = td->td_retval[0];
147 if (fget(td, fd, cap_rights_init(&rights, CAP_IOCTL), &fp) == 0) {
148 if (fp->f_type != DTYPE_VNODE) {
152 sx_slock(&proctree_lock);
154 if (SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
156 sx_sunlock(&proctree_lock);
157 /* XXXPJD: Verify if TIOCSCTTY is allowed. */
158 (void) fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0,
162 sx_sunlock(&proctree_lock);
170 printf(LMSG("open returns error %d"), error);
177 linux_openat(struct thread *td, struct linux_openat_args *args)
182 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
183 if (args->flags & LINUX_O_CREAT)
184 LCONVPATH_AT(td, args->filename, &path, 1, dfd);
186 LCONVPATH_AT(td, args->filename, &path, 0, dfd);
189 printf(ARGS(openat, "%i, %s, 0x%x, 0x%x"), args->dfd,
190 path, args->flags, args->mode);
192 return (linux_common_open(td, dfd, path, args->flags, args->mode));
196 linux_open(struct thread *td, struct linux_open_args *args)
200 if (args->flags & LINUX_O_CREAT)
201 LCONVPATHCREAT(td, args->path, &path);
203 LCONVPATHEXIST(td, args->path, &path);
207 printf(ARGS(open, "%s, 0x%x, 0x%x"),
208 path, args->flags, args->mode);
211 return (linux_common_open(td, AT_FDCWD, path, args->flags, args->mode));
215 linux_lseek(struct thread *td, struct linux_lseek_args *args)
218 struct lseek_args /* {
228 printf(ARGS(lseek, "%d, %ld, %d"),
229 args->fdes, (long)args->off, args->whence);
231 tmp_args.fd = args->fdes;
232 tmp_args.offset = (off_t)args->off;
233 tmp_args.whence = args->whence;
234 error = sys_lseek(td, &tmp_args);
238 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
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);
277 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
280 * Note that linux_getdents(2) and linux_getdents64(2) have the same
281 * arguments. They only differ in the definition of struct dirent they
282 * operate on. We use this to common the code, with the exception of
283 * accessing struct dirent. Note that linux_readdir(2) is implemented
284 * by means of linux_getdents(2). In this case we never operate on
285 * struct dirent64 and thus don't need to handle it...
292 char d_name[LINUX_NAME_MAX + 1];
300 char d_name[LINUX_NAME_MAX + 1];
304 * Linux uses the last byte in the dirent buffer to store d_type,
305 * at least glibc-2.7 requires it. That is why l_dirent is padded with 2 bytes.
307 #define LINUX_RECLEN(namlen) \
308 roundup((offsetof(struct l_dirent, d_name) + (namlen) + 2), \
311 #define LINUX_RECLEN64(namlen) \
312 roundup((offsetof(struct l_dirent64, d_name) + (namlen) + 1), \
315 #define LINUX_MAXRECLEN max(LINUX_RECLEN(LINUX_NAME_MAX), \
316 LINUX_RECLEN64(LINUX_NAME_MAX))
317 #define LINUX_DIRBLKSIZ 512
320 getdents_common(struct thread *td, struct linux_getdents64_args *args,
325 caddr_t inp, buf; /* BSD-format */
326 int len, reclen; /* BSD-format */
327 caddr_t outp; /* Linux-format */
328 int resid, linuxreclen=0; /* Linux-format */
329 caddr_t lbuf; /* Linux-format */
335 struct l_dirent *linux_dirent;
336 struct l_dirent64 *linux_dirent64;
337 int buflen, error, eofflag, nbytes, justone;
338 u_long *cookies = NULL, *cookiep;
341 nbytes = args->count;
343 /* readdir(2) case. Always struct dirent. */
346 nbytes = sizeof(*linux_dirent);
351 error = getvnode(td->td_proc->p_fd, args->fd,
352 cap_rights_init(&rights, CAP_READ), &fp);
356 if ((fp->f_flag & FREAD) == 0) {
361 off = foffset_lock(fp, 0);
363 if (vp->v_type != VDIR) {
364 foffset_unlock(fp, off, 0);
370 buflen = max(LINUX_DIRBLKSIZ, nbytes);
371 buflen = min(buflen, MAXBSIZE);
372 buf = malloc(buflen, M_LINUX, M_WAITOK);
373 lbuf = malloc(LINUX_MAXRECLEN, M_LINUX, M_WAITOK | M_ZERO);
374 vn_lock(vp, LK_SHARED | LK_RETRY);
377 aiov.iov_len = buflen;
378 auio.uio_iov = &aiov;
380 auio.uio_rw = UIO_READ;
381 auio.uio_segflg = UIO_SYSSPACE;
383 auio.uio_resid = buflen;
384 auio.uio_offset = off;
388 * Do directory search MAC check using non-cached credentials.
390 if ((error = mac_vnode_check_readdir(td->td_ucred, vp)))
393 if ((error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies,
398 outp = (caddr_t)args->dirent;
400 if ((len = buflen - auio.uio_resid) <= 0)
407 * When using cookies, the vfs has the option of reading from
408 * a different offset than that supplied (UFS truncates the
409 * offset to a block boundary to make sure that it never reads
410 * partway through a directory entry, even if the directory
411 * has been compacted).
413 while (len > 0 && ncookies > 0 && *cookiep <= off) {
414 bdp = (struct dirent *) inp;
415 len -= bdp->d_reclen;
416 inp += bdp->d_reclen;
423 if (cookiep && ncookies == 0)
425 bdp = (struct dirent *) inp;
426 reclen = bdp->d_reclen;
432 if (bdp->d_fileno == 0) {
444 linuxreclen = (is64bit)
445 ? LINUX_RECLEN64(bdp->d_namlen)
446 : LINUX_RECLEN(bdp->d_namlen);
448 if (reclen > len || resid < linuxreclen) {
454 /* readdir(2) case. */
455 linux_dirent = (struct l_dirent*)lbuf;
456 linux_dirent->d_ino = bdp->d_fileno;
457 linux_dirent->d_off = (l_off_t)linuxreclen;
458 linux_dirent->d_reclen = (l_ushort)bdp->d_namlen;
459 strlcpy(linux_dirent->d_name, bdp->d_name,
460 linuxreclen - offsetof(struct l_dirent, d_name));
461 error = copyout(linux_dirent, outp, linuxreclen);
464 linux_dirent64 = (struct l_dirent64*)lbuf;
465 linux_dirent64->d_ino = bdp->d_fileno;
466 linux_dirent64->d_off = (cookiep)
468 : (l_off_t)(off + reclen);
469 linux_dirent64->d_reclen = (l_ushort)linuxreclen;
470 linux_dirent64->d_type = bdp->d_type;
471 strlcpy(linux_dirent64->d_name, bdp->d_name,
472 linuxreclen - offsetof(struct l_dirent64, d_name));
473 error = copyout(linux_dirent64, outp, linuxreclen);
474 } else if (!justone) {
475 linux_dirent = (struct l_dirent*)lbuf;
476 linux_dirent->d_ino = bdp->d_fileno;
477 linux_dirent->d_off = (cookiep)
479 : (l_off_t)(off + reclen);
480 linux_dirent->d_reclen = (l_ushort)linuxreclen;
482 * Copy d_type to last byte of l_dirent buffer
484 lbuf[linuxreclen-1] = bdp->d_type;
485 strlcpy(linux_dirent->d_name, bdp->d_name,
486 linuxreclen - offsetof(struct l_dirent, d_name)-1);
487 error = copyout(linux_dirent, outp, linuxreclen);
501 resid -= linuxreclen;
507 if (outp == (caddr_t)args->dirent) {
513 nbytes = resid + linuxreclen;
516 td->td_retval[0] = nbytes - resid;
519 free(cookies, M_TEMP);
522 foffset_unlock(fp, off, 0);
530 linux_getdents(struct thread *td, struct linux_getdents_args *args)
534 if (ldebug(getdents))
535 printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count);
538 return (getdents_common(td, (struct linux_getdents64_args*)args, 0));
542 linux_getdents64(struct thread *td, struct linux_getdents64_args *args)
546 if (ldebug(getdents64))
547 printf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count);
550 return (getdents_common(td, args, 1));
554 * These exist mainly for hooks for doing /compat/linux translation.
558 linux_access(struct thread *td, struct linux_access_args *args)
563 /* linux convention */
564 if (args->amode & ~(F_OK | X_OK | W_OK | R_OK))
567 LCONVPATHEXIST(td, args->path, &path);
571 printf(ARGS(access, "%s, %d"), path, args->amode);
573 error = kern_access(td, path, UIO_SYSSPACE, args->amode);
580 linux_faccessat(struct thread *td, struct linux_faccessat_args *args)
585 /* linux convention */
586 if (args->amode & ~(F_OK | X_OK | W_OK | R_OK))
589 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
590 LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
594 printf(ARGS(access, "%s, %d"), path, args->amode);
597 error = kern_accessat(td, dfd, path, UIO_SYSSPACE, 0, args->amode);
604 linux_unlink(struct thread *td, struct linux_unlink_args *args)
610 LCONVPATHEXIST(td, args->path, &path);
614 printf(ARGS(unlink, "%s"), path);
617 error = kern_unlink(td, path, UIO_SYSSPACE);
619 /* Introduce POSIX noncompliant behaviour of Linux */
620 if (kern_stat(td, path, UIO_SYSSPACE, &st) == 0)
621 if (S_ISDIR(st.st_mode))
628 linux_unlinkat(struct thread *td, struct linux_unlinkat_args *args)
634 if (args->flag & ~LINUX_AT_REMOVEDIR)
637 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
638 LCONVPATHEXIST_AT(td, args->pathname, &path, dfd);
641 if (ldebug(unlinkat))
642 printf(ARGS(unlinkat, "%s"), path);
645 if (args->flag & LINUX_AT_REMOVEDIR)
646 error = kern_rmdirat(td, dfd, path, UIO_SYSSPACE);
648 error = kern_unlinkat(td, dfd, path, UIO_SYSSPACE, 0);
649 if (error == EPERM && !(args->flag & LINUX_AT_REMOVEDIR)) {
650 /* Introduce POSIX noncompliant behaviour of Linux */
651 if (kern_statat(td, AT_SYMLINK_NOFOLLOW, dfd, path,
652 UIO_SYSSPACE, &st) == 0 && S_ISDIR(st.st_mode))
659 linux_chdir(struct thread *td, struct linux_chdir_args *args)
664 LCONVPATHEXIST(td, args->path, &path);
668 printf(ARGS(chdir, "%s"), path);
670 error = kern_chdir(td, path, UIO_SYSSPACE);
676 linux_chmod(struct thread *td, struct linux_chmod_args *args)
681 LCONVPATHEXIST(td, args->path, &path);
685 printf(ARGS(chmod, "%s, %d"), path, args->mode);
687 error = kern_chmod(td, path, UIO_SYSSPACE, args->mode);
693 linux_fchmodat(struct thread *td, struct linux_fchmodat_args *args)
698 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
699 LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
702 if (ldebug(fchmodat))
703 printf(ARGS(fchmodat, "%s, %d"), path, args->mode);
706 error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0);
712 linux_mkdir(struct thread *td, struct linux_mkdir_args *args)
717 LCONVPATHCREAT(td, args->path, &path);
721 printf(ARGS(mkdir, "%s, %d"), path, args->mode);
723 error = kern_mkdir(td, path, UIO_SYSSPACE, args->mode);
729 linux_mkdirat(struct thread *td, struct linux_mkdirat_args *args)
734 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
735 LCONVPATHCREAT_AT(td, args->pathname, &path, dfd);
739 printf(ARGS(mkdirat, "%s, %d"), path, args->mode);
741 error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode);
747 linux_rmdir(struct thread *td, struct linux_rmdir_args *args)
752 LCONVPATHEXIST(td, args->path, &path);
756 printf(ARGS(rmdir, "%s"), path);
758 error = kern_rmdir(td, path, UIO_SYSSPACE);
764 linux_rename(struct thread *td, struct linux_rename_args *args)
769 LCONVPATHEXIST(td, args->from, &from);
770 /* Expand LCONVPATHCREATE so that `from' can be freed on errors */
771 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
779 printf(ARGS(rename, "%s, %s"), from, to);
781 error = kern_rename(td, from, to, UIO_SYSSPACE);
788 linux_renameat(struct thread *td, struct linux_renameat_args *args)
791 int error, olddfd, newdfd;
793 olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd;
794 newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
795 LCONVPATHEXIST_AT(td, args->oldname, &from, olddfd);
796 /* Expand LCONVPATHCREATE so that `from' can be freed on errors */
797 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd);
804 if (ldebug(renameat))
805 printf(ARGS(renameat, "%s, %s"), from, to);
807 error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE);
814 linux_symlink(struct thread *td, struct linux_symlink_args *args)
819 LCONVPATHEXIST(td, args->path, &path);
820 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
821 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
829 printf(ARGS(symlink, "%s, %s"), path, to);
831 error = kern_symlink(td, path, to, UIO_SYSSPACE);
838 linux_symlinkat(struct thread *td, struct linux_symlinkat_args *args)
843 dfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
844 LCONVPATHEXIST_AT(td, args->oldname, &path, dfd);
845 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
846 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, dfd);
853 if (ldebug(symlinkat))
854 printf(ARGS(symlinkat, "%s, %s"), path, to);
857 error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE);
864 linux_readlink(struct thread *td, struct linux_readlink_args *args)
869 LCONVPATHEXIST(td, args->name, &name);
872 if (ldebug(readlink))
873 printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf,
876 error = kern_readlink(td, name, UIO_SYSSPACE, args->buf, UIO_USERSPACE,
883 linux_readlinkat(struct thread *td, struct linux_readlinkat_args *args)
888 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
889 LCONVPATHEXIST_AT(td, args->path, &name, dfd);
892 if (ldebug(readlinkat))
893 printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf,
897 error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf,
898 UIO_USERSPACE, args->bufsiz);
904 linux_truncate(struct thread *td, struct linux_truncate_args *args)
909 LCONVPATHEXIST(td, args->path, &path);
912 if (ldebug(truncate))
913 printf(ARGS(truncate, "%s, %ld"), path, (long)args->length);
916 error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
921 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
923 linux_truncate64(struct thread *td, struct linux_truncate64_args *args)
928 LCONVPATHEXIST(td, args->path, &path);
931 if (ldebug(truncate64))
932 printf(ARGS(truncate64, "%s, %jd"), path, args->length);
935 error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
939 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
942 linux_ftruncate(struct thread *td, struct linux_ftruncate_args *args)
944 struct ftruncate_args /* {
951 nuap.length = args->length;
952 return (sys_ftruncate(td, &nuap));
956 linux_link(struct thread *td, struct linux_link_args *args)
961 LCONVPATHEXIST(td, args->path, &path);
962 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
963 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
971 printf(ARGS(link, "%s, %s"), path, to);
973 error = kern_link(td, path, to, UIO_SYSSPACE);
980 linux_linkat(struct thread *td, struct linux_linkat_args *args)
983 int error, olddfd, newdfd, follow;
985 if (args->flag & ~LINUX_AT_SYMLINK_FOLLOW)
988 olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd;
989 newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
990 LCONVPATHEXIST_AT(td, args->oldname, &path, olddfd);
991 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
992 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd);
1000 printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path,
1001 args->newdfd, to, args->flag);
1004 follow = (args->flag & LINUX_AT_SYMLINK_FOLLOW) == 0 ? NOFOLLOW :
1006 error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, follow);
1013 linux_fdatasync(td, uap)
1015 struct linux_fdatasync_args *uap;
1017 struct fsync_args bsd;
1020 return sys_fsync(td, &bsd);
1024 linux_pread(td, uap)
1026 struct linux_pread_args *uap;
1028 struct pread_args bsd;
1029 cap_rights_t rights;
1035 bsd.nbyte = uap->nbyte;
1036 bsd.offset = uap->offset;
1038 error = sys_pread(td, &bsd);
1041 /* This seems to violate POSIX but linux does it */
1042 error = fgetvp(td, uap->fd,
1043 cap_rights_init(&rights, CAP_PREAD), &vp);
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 char fstypename[MFSNAMELEN];
1074 char mntonname[MNAMELEN], mntfromname[MNAMELEN];
1078 error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1,
1082 error = copyinstr(args->specialfile, mntfromname, MNAMELEN - 1, NULL);
1085 error = copyinstr(args->dir, mntonname, MNAMELEN - 1, NULL);
1091 printf(ARGS(mount, "%s, %s, %s"),
1092 fstypename, mntfromname, mntonname);
1095 if (strcmp(fstypename, "ext2") == 0) {
1096 strcpy(fstypename, "ext2fs");
1097 } else if (strcmp(fstypename, "proc") == 0) {
1098 strcpy(fstypename, "linprocfs");
1099 } else if (strcmp(fstypename, "vfat") == 0) {
1100 strcpy(fstypename, "msdosfs");
1105 if ((args->rwflag & 0xffff0000) == 0xc0ed0000) {
1107 * Linux SYNC flag is not included; the closest equivalent
1108 * FreeBSD has is !ASYNC, which is our default.
1110 if (args->rwflag & LINUX_MS_RDONLY)
1111 fsflags |= MNT_RDONLY;
1112 if (args->rwflag & LINUX_MS_NOSUID)
1113 fsflags |= MNT_NOSUID;
1114 if (args->rwflag & LINUX_MS_NOEXEC)
1115 fsflags |= MNT_NOEXEC;
1116 if (args->rwflag & LINUX_MS_REMOUNT)
1117 fsflags |= MNT_UPDATE;
1120 error = kernel_vmount(fsflags,
1121 "fstype", fstypename,
1122 "fspath", mntonname,
1123 "from", mntfromname,
1128 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1130 linux_oldumount(struct thread *td, struct linux_oldumount_args *args)
1132 struct linux_umount_args args2;
1134 args2.path = args->path;
1136 return (linux_umount(td, &args2));
1138 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1141 linux_umount(struct thread *td, struct linux_umount_args *args)
1143 struct unmount_args bsd;
1145 bsd.path = args->path;
1146 bsd.flags = args->flags; /* XXX correct? */
1147 return (sys_unmount(td, &bsd));
1151 * fcntl family of syscalls
1161 #if defined(__amd64__) && defined(COMPAT_LINUX32)
1167 linux_to_bsd_flock(struct l_flock *linux_flock, struct flock *bsd_flock)
1169 switch (linux_flock->l_type) {
1171 bsd_flock->l_type = F_RDLCK;
1174 bsd_flock->l_type = F_WRLCK;
1177 bsd_flock->l_type = F_UNLCK;
1180 bsd_flock->l_type = -1;
1183 bsd_flock->l_whence = linux_flock->l_whence;
1184 bsd_flock->l_start = (off_t)linux_flock->l_start;
1185 bsd_flock->l_len = (off_t)linux_flock->l_len;
1186 bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
1187 bsd_flock->l_sysid = 0;
1191 bsd_to_linux_flock(struct flock *bsd_flock, struct l_flock *linux_flock)
1193 switch (bsd_flock->l_type) {
1195 linux_flock->l_type = LINUX_F_RDLCK;
1198 linux_flock->l_type = LINUX_F_WRLCK;
1201 linux_flock->l_type = LINUX_F_UNLCK;
1204 linux_flock->l_whence = bsd_flock->l_whence;
1205 linux_flock->l_start = (l_off_t)bsd_flock->l_start;
1206 linux_flock->l_len = (l_off_t)bsd_flock->l_len;
1207 linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid;
1210 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1218 #if defined(__amd64__) && defined(COMPAT_LINUX32)
1224 linux_to_bsd_flock64(struct l_flock64 *linux_flock, struct flock *bsd_flock)
1226 switch (linux_flock->l_type) {
1228 bsd_flock->l_type = F_RDLCK;
1231 bsd_flock->l_type = F_WRLCK;
1234 bsd_flock->l_type = F_UNLCK;
1237 bsd_flock->l_type = -1;
1240 bsd_flock->l_whence = linux_flock->l_whence;
1241 bsd_flock->l_start = (off_t)linux_flock->l_start;
1242 bsd_flock->l_len = (off_t)linux_flock->l_len;
1243 bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
1244 bsd_flock->l_sysid = 0;
1248 bsd_to_linux_flock64(struct flock *bsd_flock, struct l_flock64 *linux_flock)
1250 switch (bsd_flock->l_type) {
1252 linux_flock->l_type = LINUX_F_RDLCK;
1255 linux_flock->l_type = LINUX_F_WRLCK;
1258 linux_flock->l_type = LINUX_F_UNLCK;
1261 linux_flock->l_whence = bsd_flock->l_whence;
1262 linux_flock->l_start = (l_loff_t)bsd_flock->l_start;
1263 linux_flock->l_len = (l_loff_t)bsd_flock->l_len;
1264 linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid;
1266 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1269 fcntl_common(struct thread *td, struct linux_fcntl_args *args)
1271 struct l_flock linux_flock;
1272 struct flock bsd_flock;
1273 cap_rights_t rights;
1278 switch (args->cmd) {
1280 return (kern_fcntl(td, args->fd, F_DUPFD, args->arg));
1283 return (kern_fcntl(td, args->fd, F_GETFD, 0));
1286 return (kern_fcntl(td, args->fd, F_SETFD, args->arg));
1289 error = kern_fcntl(td, args->fd, F_GETFL, 0);
1290 result = td->td_retval[0];
1291 td->td_retval[0] = 0;
1292 if (result & O_RDONLY)
1293 td->td_retval[0] |= LINUX_O_RDONLY;
1294 if (result & O_WRONLY)
1295 td->td_retval[0] |= LINUX_O_WRONLY;
1296 if (result & O_RDWR)
1297 td->td_retval[0] |= LINUX_O_RDWR;
1298 if (result & O_NDELAY)
1299 td->td_retval[0] |= LINUX_O_NONBLOCK;
1300 if (result & O_APPEND)
1301 td->td_retval[0] |= LINUX_O_APPEND;
1302 if (result & O_FSYNC)
1303 td->td_retval[0] |= LINUX_O_SYNC;
1304 if (result & O_ASYNC)
1305 td->td_retval[0] |= LINUX_FASYNC;
1306 #ifdef LINUX_O_NOFOLLOW
1307 if (result & O_NOFOLLOW)
1308 td->td_retval[0] |= LINUX_O_NOFOLLOW;
1310 #ifdef LINUX_O_DIRECT
1311 if (result & O_DIRECT)
1312 td->td_retval[0] |= LINUX_O_DIRECT;
1318 if (args->arg & LINUX_O_NDELAY)
1320 if (args->arg & LINUX_O_APPEND)
1322 if (args->arg & LINUX_O_SYNC)
1324 if (args->arg & LINUX_FASYNC)
1326 #ifdef LINUX_O_NOFOLLOW
1327 if (args->arg & LINUX_O_NOFOLLOW)
1330 #ifdef LINUX_O_DIRECT
1331 if (args->arg & LINUX_O_DIRECT)
1334 return (kern_fcntl(td, args->fd, F_SETFL, arg));
1337 error = copyin((void *)args->arg, &linux_flock,
1338 sizeof(linux_flock));
1341 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1342 error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock);
1345 bsd_to_linux_flock(&bsd_flock, &linux_flock);
1346 return (copyout(&linux_flock, (void *)args->arg,
1347 sizeof(linux_flock)));
1350 error = copyin((void *)args->arg, &linux_flock,
1351 sizeof(linux_flock));
1354 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1355 return (kern_fcntl(td, args->fd, F_SETLK,
1356 (intptr_t)&bsd_flock));
1358 case LINUX_F_SETLKW:
1359 error = copyin((void *)args->arg, &linux_flock,
1360 sizeof(linux_flock));
1363 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1364 return (kern_fcntl(td, args->fd, F_SETLKW,
1365 (intptr_t)&bsd_flock));
1367 case LINUX_F_GETOWN:
1368 return (kern_fcntl(td, args->fd, F_GETOWN, 0));
1370 case LINUX_F_SETOWN:
1372 * XXX some Linux applications depend on F_SETOWN having no
1373 * significant effect for pipes (SIGIO is not delivered for
1374 * pipes under Linux-2.2.35 at least).
1376 error = fget(td, args->fd,
1377 cap_rights_init(&rights, CAP_FCNTL), &fp);
1380 if (fp->f_type == DTYPE_PIPE) {
1386 return (kern_fcntl(td, args->fd, F_SETOWN, args->arg));
1388 case LINUX_F_DUPFD_CLOEXEC:
1389 return (kern_fcntl(td, args->fd, F_DUPFD_CLOEXEC, args->arg));
1396 linux_fcntl(struct thread *td, struct linux_fcntl_args *args)
1401 printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd);
1404 return (fcntl_common(td, args));
1407 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1409 linux_fcntl64(struct thread *td, struct linux_fcntl64_args *args)
1411 struct l_flock64 linux_flock;
1412 struct flock bsd_flock;
1413 struct linux_fcntl_args fcntl_args;
1417 if (ldebug(fcntl64))
1418 printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd);
1421 switch (args->cmd) {
1422 case LINUX_F_GETLK64:
1423 error = copyin((void *)args->arg, &linux_flock,
1424 sizeof(linux_flock));
1427 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1428 error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock);
1431 bsd_to_linux_flock64(&bsd_flock, &linux_flock);
1432 return (copyout(&linux_flock, (void *)args->arg,
1433 sizeof(linux_flock)));
1435 case LINUX_F_SETLK64:
1436 error = copyin((void *)args->arg, &linux_flock,
1437 sizeof(linux_flock));
1440 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1441 return (kern_fcntl(td, args->fd, F_SETLK,
1442 (intptr_t)&bsd_flock));
1444 case LINUX_F_SETLKW64:
1445 error = copyin((void *)args->arg, &linux_flock,
1446 sizeof(linux_flock));
1449 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1450 return (kern_fcntl(td, args->fd, F_SETLKW,
1451 (intptr_t)&bsd_flock));
1454 fcntl_args.fd = args->fd;
1455 fcntl_args.cmd = args->cmd;
1456 fcntl_args.arg = args->arg;
1457 return (fcntl_common(td, &fcntl_args));
1459 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1462 linux_chown(struct thread *td, struct linux_chown_args *args)
1467 LCONVPATHEXIST(td, args->path, &path);
1471 printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid);
1473 error = kern_chown(td, path, UIO_SYSSPACE, args->uid, args->gid);
1479 linux_fchownat(struct thread *td, struct linux_fchownat_args *args)
1482 int error, dfd, flag;
1484 if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW)
1487 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
1488 LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
1491 if (ldebug(fchownat))
1492 printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid);
1495 flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 :
1496 AT_SYMLINK_NOFOLLOW;
1497 error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid,
1504 linux_lchown(struct thread *td, struct linux_lchown_args *args)
1509 LCONVPATHEXIST(td, args->path, &path);
1513 printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid);
1515 error = kern_lchown(td, path, UIO_SYSSPACE, args->uid, args->gid);
1521 convert_fadvice(int advice)
1524 case LINUX_POSIX_FADV_NORMAL:
1525 return (POSIX_FADV_NORMAL);
1526 case LINUX_POSIX_FADV_RANDOM:
1527 return (POSIX_FADV_RANDOM);
1528 case LINUX_POSIX_FADV_SEQUENTIAL:
1529 return (POSIX_FADV_SEQUENTIAL);
1530 case LINUX_POSIX_FADV_WILLNEED:
1531 return (POSIX_FADV_WILLNEED);
1532 case LINUX_POSIX_FADV_DONTNEED:
1533 return (POSIX_FADV_DONTNEED);
1534 case LINUX_POSIX_FADV_NOREUSE:
1535 return (POSIX_FADV_NOREUSE);
1542 linux_fadvise64(struct thread *td, struct linux_fadvise64_args *args)
1546 advice = convert_fadvice(args->advice);
1549 return (kern_posix_fadvise(td, args->fd, args->offset, args->len,
1553 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1555 linux_fadvise64_64(struct thread *td, struct linux_fadvise64_64_args *args)
1559 advice = convert_fadvice(args->advice);
1562 return (kern_posix_fadvise(td, args->fd, args->offset, args->len,
1565 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1568 linux_pipe(struct thread *td, struct linux_pipe_args *args)
1575 printf(ARGS(pipe, "*"));
1578 error = kern_pipe2(td, fildes, 0);
1582 /* XXX: Close descriptors on error. */
1583 return (copyout(fildes, args->pipefds, sizeof(fildes)));
1587 linux_pipe2(struct thread *td, struct linux_pipe2_args *args)
1594 printf(ARGS(pipe2, "*, %d"), args->flags);
1597 if ((args->flags & ~(LINUX_O_NONBLOCK | LINUX_O_CLOEXEC)) != 0)
1601 if ((args->flags & LINUX_O_NONBLOCK) != 0)
1602 flags |= O_NONBLOCK;
1603 if ((args->flags & LINUX_O_CLOEXEC) != 0)
1605 error = kern_pipe2(td, fildes, flags);
1609 /* XXX: Close descriptors on error. */
1610 return (copyout(fildes, args->pipefds, sizeof(fildes)));
1614 linux_dup3(struct thread *td, struct linux_dup3_args *args)
1619 if (args->oldfd == args->newfd)
1621 if ((args->flags & ~LINUX_O_CLOEXEC) != 0)
1623 if (args->flags & LINUX_O_CLOEXEC)
1624 cmd = F_DUP2FD_CLOEXEC;
1628 newfd = args->newfd;
1629 return (kern_fcntl(td, args->oldfd, cmd, newfd));
1633 linux_fallocate(struct thread *td, struct linux_fallocate_args *args)
1637 * We emulate only posix_fallocate system call for which
1640 if (args->mode != 0)
1643 return (kern_posix_fallocate(td, args->fd, args->offset,