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);
239 linux_llseek(struct thread *td, struct linux_llseek_args *args)
241 struct lseek_args bsd_args;
247 printf(ARGS(llseek, "%d, %d:%d, %d"),
248 args->fd, args->ohigh, args->olow, args->whence);
250 off = (args->olow) | (((off_t) args->ohigh) << 32);
252 bsd_args.fd = args->fd;
253 bsd_args.offset = off;
254 bsd_args.whence = args->whence;
256 if ((error = sys_lseek(td, &bsd_args)))
259 if ((error = copyout(td->td_retval, args->res, sizeof (off_t))))
262 td->td_retval[0] = 0;
267 linux_readdir(struct thread *td, struct linux_readdir_args *args)
269 struct linux_getdents_args lda;
272 lda.dent = args->dent;
274 return linux_getdents(td, &lda);
278 * Note that linux_getdents(2) and linux_getdents64(2) have the same
279 * arguments. They only differ in the definition of struct dirent they
280 * operate on. We use this to common the code, with the exception of
281 * accessing struct dirent. Note that linux_readdir(2) is implemented
282 * by means of linux_getdents(2). In this case we never operate on
283 * struct dirent64 and thus don't need to handle it...
290 char d_name[LINUX_NAME_MAX + 1];
298 char d_name[LINUX_NAME_MAX + 1];
302 * Linux uses the last byte in the dirent buffer to store d_type,
303 * at least glibc-2.7 requires it. That is why l_dirent is padded with 2 bytes.
305 #define LINUX_RECLEN(namlen) \
306 roundup((offsetof(struct l_dirent, d_name) + (namlen) + 2), \
309 #define LINUX_RECLEN64(namlen) \
310 roundup((offsetof(struct l_dirent64, d_name) + (namlen) + 1), \
313 #define LINUX_MAXRECLEN max(LINUX_RECLEN(LINUX_NAME_MAX), \
314 LINUX_RECLEN64(LINUX_NAME_MAX))
315 #define LINUX_DIRBLKSIZ 512
318 getdents_common(struct thread *td, struct linux_getdents64_args *args,
323 caddr_t inp, buf; /* BSD-format */
324 int len, reclen; /* BSD-format */
325 caddr_t outp; /* Linux-format */
326 int resid, linuxreclen=0; /* Linux-format */
327 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;
339 nbytes = args->count;
341 /* readdir(2) case. Always struct dirent. */
344 nbytes = sizeof(*linux_dirent);
349 error = getvnode(td->td_proc->p_fd, args->fd,
350 cap_rights_init(&rights, CAP_READ), &fp);
354 if ((fp->f_flag & FREAD) == 0) {
359 off = foffset_lock(fp, 0);
361 if (vp->v_type != VDIR) {
362 foffset_unlock(fp, off, 0);
368 buflen = max(LINUX_DIRBLKSIZ, nbytes);
369 buflen = min(buflen, MAXBSIZE);
370 buf = malloc(buflen, M_TEMP, M_WAITOK);
371 lbuf = malloc(LINUX_MAXRECLEN, M_TEMP, M_WAITOK | M_ZERO);
372 vn_lock(vp, LK_SHARED | LK_RETRY);
375 aiov.iov_len = buflen;
376 auio.uio_iov = &aiov;
378 auio.uio_rw = UIO_READ;
379 auio.uio_segflg = UIO_SYSSPACE;
381 auio.uio_resid = buflen;
382 auio.uio_offset = off;
386 * Do directory search MAC check using non-cached credentials.
388 if ((error = mac_vnode_check_readdir(td->td_ucred, vp)))
391 if ((error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies,
396 outp = (caddr_t)args->dirent;
398 if ((len = buflen - auio.uio_resid) <= 0)
405 * When using cookies, the vfs has the option of reading from
406 * a different offset than that supplied (UFS truncates the
407 * offset to a block boundary to make sure that it never reads
408 * partway through a directory entry, even if the directory
409 * has been compacted).
411 while (len > 0 && ncookies > 0 && *cookiep <= off) {
412 bdp = (struct dirent *) inp;
413 len -= bdp->d_reclen;
414 inp += bdp->d_reclen;
421 if (cookiep && ncookies == 0)
423 bdp = (struct dirent *) inp;
424 reclen = bdp->d_reclen;
430 if (bdp->d_fileno == 0) {
442 linuxreclen = (is64bit)
443 ? LINUX_RECLEN64(bdp->d_namlen)
444 : LINUX_RECLEN(bdp->d_namlen);
446 if (reclen > len || resid < linuxreclen) {
452 /* readdir(2) case. */
453 linux_dirent = (struct l_dirent*)lbuf;
454 linux_dirent->d_ino = bdp->d_fileno;
455 linux_dirent->d_off = (l_off_t)linuxreclen;
456 linux_dirent->d_reclen = (l_ushort)bdp->d_namlen;
457 strlcpy(linux_dirent->d_name, bdp->d_name,
458 linuxreclen - offsetof(struct l_dirent, d_name));
459 error = copyout(linux_dirent, outp, linuxreclen);
462 linux_dirent64 = (struct l_dirent64*)lbuf;
463 linux_dirent64->d_ino = bdp->d_fileno;
464 linux_dirent64->d_off = (cookiep)
466 : (l_off_t)(off + reclen);
467 linux_dirent64->d_reclen = (l_ushort)linuxreclen;
468 linux_dirent64->d_type = bdp->d_type;
469 strlcpy(linux_dirent64->d_name, bdp->d_name,
470 linuxreclen - offsetof(struct l_dirent64, d_name));
471 error = copyout(linux_dirent64, outp, linuxreclen);
472 } else if (!justone) {
473 linux_dirent = (struct l_dirent*)lbuf;
474 linux_dirent->d_ino = bdp->d_fileno;
475 linux_dirent->d_off = (cookiep)
477 : (l_off_t)(off + reclen);
478 linux_dirent->d_reclen = (l_ushort)linuxreclen;
480 * Copy d_type to last byte of l_dirent buffer
482 lbuf[linuxreclen-1] = bdp->d_type;
483 strlcpy(linux_dirent->d_name, bdp->d_name,
484 linuxreclen - offsetof(struct l_dirent, d_name)-1);
485 error = copyout(linux_dirent, outp, linuxreclen);
499 resid -= linuxreclen;
505 if (outp == (caddr_t)args->dirent) {
511 nbytes = resid + linuxreclen;
514 td->td_retval[0] = nbytes - resid;
517 free(cookies, M_TEMP);
520 foffset_unlock(fp, off, 0);
528 linux_getdents(struct thread *td, struct linux_getdents_args *args)
532 if (ldebug(getdents))
533 printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count);
536 return (getdents_common(td, (struct linux_getdents64_args*)args, 0));
540 linux_getdents64(struct thread *td, struct linux_getdents64_args *args)
544 if (ldebug(getdents64))
545 printf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count);
548 return (getdents_common(td, args, 1));
552 * These exist mainly for hooks for doing /compat/linux translation.
556 linux_access(struct thread *td, struct linux_access_args *args)
561 /* linux convention */
562 if (args->amode & ~(F_OK | X_OK | W_OK | R_OK))
565 LCONVPATHEXIST(td, args->path, &path);
569 printf(ARGS(access, "%s, %d"), path, args->amode);
571 error = kern_access(td, path, UIO_SYSSPACE, args->amode);
578 linux_faccessat(struct thread *td, struct linux_faccessat_args *args)
581 int error, dfd, flag;
583 if (args->flag & ~LINUX_AT_EACCESS)
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 flag = (args->flag & LINUX_AT_EACCESS) == 0 ? 0 : AT_EACCESS;
598 error = kern_accessat(td, dfd, path, UIO_SYSSPACE, flag, args->amode);
605 linux_unlink(struct thread *td, struct linux_unlink_args *args)
611 LCONVPATHEXIST(td, args->path, &path);
615 printf(ARGS(unlink, "%s"), path);
618 error = kern_unlink(td, path, UIO_SYSSPACE);
620 /* Introduce POSIX noncompliant behaviour of Linux */
621 if (kern_stat(td, path, UIO_SYSSPACE, &st) == 0)
622 if (S_ISDIR(st.st_mode))
629 linux_unlinkat(struct thread *td, struct linux_unlinkat_args *args)
635 if (args->flag & ~LINUX_AT_REMOVEDIR)
638 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
639 LCONVPATHEXIST_AT(td, args->pathname, &path, dfd);
642 if (ldebug(unlinkat))
643 printf(ARGS(unlinkat, "%s"), path);
646 if (args->flag & LINUX_AT_REMOVEDIR)
647 error = kern_rmdirat(td, dfd, path, UIO_SYSSPACE);
649 error = kern_unlinkat(td, dfd, path, UIO_SYSSPACE, 0);
650 if (error == EPERM && !(args->flag & LINUX_AT_REMOVEDIR)) {
651 /* Introduce POSIX noncompliant behaviour of Linux */
652 if (kern_statat(td, AT_SYMLINK_NOFOLLOW, dfd, path,
653 UIO_SYSSPACE, &st) == 0 && S_ISDIR(st.st_mode))
660 linux_chdir(struct thread *td, struct linux_chdir_args *args)
665 LCONVPATHEXIST(td, args->path, &path);
669 printf(ARGS(chdir, "%s"), path);
671 error = kern_chdir(td, path, UIO_SYSSPACE);
677 linux_chmod(struct thread *td, struct linux_chmod_args *args)
682 LCONVPATHEXIST(td, args->path, &path);
686 printf(ARGS(chmod, "%s, %d"), path, args->mode);
688 error = kern_chmod(td, path, UIO_SYSSPACE, args->mode);
694 linux_fchmodat(struct thread *td, struct linux_fchmodat_args *args)
699 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
700 LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
703 if (ldebug(fchmodat))
704 printf(ARGS(fchmodat, "%s, %d"), path, args->mode);
707 error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0);
713 linux_mkdir(struct thread *td, struct linux_mkdir_args *args)
718 LCONVPATHCREAT(td, args->path, &path);
722 printf(ARGS(mkdir, "%s, %d"), path, args->mode);
724 error = kern_mkdir(td, path, UIO_SYSSPACE, args->mode);
730 linux_mkdirat(struct thread *td, struct linux_mkdirat_args *args)
735 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
736 LCONVPATHCREAT_AT(td, args->pathname, &path, dfd);
740 printf(ARGS(mkdirat, "%s, %d"), path, args->mode);
742 error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode);
748 linux_rmdir(struct thread *td, struct linux_rmdir_args *args)
753 LCONVPATHEXIST(td, args->path, &path);
757 printf(ARGS(rmdir, "%s"), path);
759 error = kern_rmdir(td, path, UIO_SYSSPACE);
765 linux_rename(struct thread *td, struct linux_rename_args *args)
770 LCONVPATHEXIST(td, args->from, &from);
771 /* Expand LCONVPATHCREATE so that `from' can be freed on errors */
772 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
780 printf(ARGS(rename, "%s, %s"), from, to);
782 error = kern_rename(td, from, to, UIO_SYSSPACE);
789 linux_renameat(struct thread *td, struct linux_renameat_args *args)
792 int error, olddfd, newdfd;
794 olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd;
795 newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
796 LCONVPATHEXIST_AT(td, args->oldname, &from, olddfd);
797 /* Expand LCONVPATHCREATE so that `from' can be freed on errors */
798 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd);
805 if (ldebug(renameat))
806 printf(ARGS(renameat, "%s, %s"), from, to);
808 error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE);
815 linux_symlink(struct thread *td, struct linux_symlink_args *args)
820 LCONVPATHEXIST(td, args->path, &path);
821 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
822 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
830 printf(ARGS(symlink, "%s, %s"), path, to);
832 error = kern_symlink(td, path, to, UIO_SYSSPACE);
839 linux_symlinkat(struct thread *td, struct linux_symlinkat_args *args)
844 dfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
845 LCONVPATHEXIST_AT(td, args->oldname, &path, dfd);
846 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
847 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, dfd);
854 if (ldebug(symlinkat))
855 printf(ARGS(symlinkat, "%s, %s"), path, to);
858 error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE);
865 linux_readlink(struct thread *td, struct linux_readlink_args *args)
870 LCONVPATHEXIST(td, args->name, &name);
873 if (ldebug(readlink))
874 printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf,
877 error = kern_readlink(td, name, UIO_SYSSPACE, args->buf, UIO_USERSPACE,
884 linux_readlinkat(struct thread *td, struct linux_readlinkat_args *args)
889 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
890 LCONVPATHEXIST_AT(td, args->path, &name, dfd);
893 if (ldebug(readlinkat))
894 printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf,
898 error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf,
899 UIO_USERSPACE, args->bufsiz);
905 linux_truncate(struct thread *td, struct linux_truncate_args *args)
910 LCONVPATHEXIST(td, args->path, &path);
913 if (ldebug(truncate))
914 printf(ARGS(truncate, "%s, %ld"), path, (long)args->length);
917 error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
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);
940 linux_ftruncate(struct thread *td, struct linux_ftruncate_args *args)
942 struct ftruncate_args /* {
949 nuap.length = args->length;
950 return (sys_ftruncate(td, &nuap));
954 linux_link(struct thread *td, struct linux_link_args *args)
959 LCONVPATHEXIST(td, args->path, &path);
960 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
961 error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD);
969 printf(ARGS(link, "%s, %s"), path, to);
971 error = kern_link(td, path, to, UIO_SYSSPACE);
978 linux_linkat(struct thread *td, struct linux_linkat_args *args)
981 int error, olddfd, newdfd, follow;
983 if (args->flag & ~LINUX_AT_SYMLINK_FOLLOW)
986 olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd;
987 newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd;
988 LCONVPATHEXIST_AT(td, args->oldname, &path, olddfd);
989 /* Expand LCONVPATHCREATE so that `path' can be freed on errors */
990 error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd);
998 printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path,
999 args->newdfd, to, args->flag);
1002 follow = (args->flag & LINUX_AT_SYMLINK_FOLLOW) == 0 ? NOFOLLOW :
1004 error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, follow);
1011 linux_fdatasync(td, uap)
1013 struct linux_fdatasync_args *uap;
1015 struct fsync_args bsd;
1018 return sys_fsync(td, &bsd);
1022 linux_pread(td, uap)
1024 struct linux_pread_args *uap;
1026 struct pread_args bsd;
1027 cap_rights_t rights;
1033 bsd.nbyte = uap->nbyte;
1034 bsd.offset = uap->offset;
1036 error = sys_pread(td, &bsd);
1039 /* This seems to violate POSIX but linux does it */
1040 error = fgetvp(td, uap->fd,
1041 cap_rights_init(&rights, CAP_PREAD), &vp);
1044 if (vp->v_type == VDIR) {
1055 linux_pwrite(td, uap)
1057 struct linux_pwrite_args *uap;
1059 struct pwrite_args bsd;
1063 bsd.nbyte = uap->nbyte;
1064 bsd.offset = uap->offset;
1065 return sys_pwrite(td, &bsd);
1069 linux_mount(struct thread *td, struct linux_mount_args *args)
1071 char fstypename[MFSNAMELEN];
1072 char mntonname[MNAMELEN], mntfromname[MNAMELEN];
1076 error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1,
1080 error = copyinstr(args->specialfile, mntfromname, MNAMELEN - 1, NULL);
1083 error = copyinstr(args->dir, mntonname, MNAMELEN - 1, NULL);
1089 printf(ARGS(mount, "%s, %s, %s"),
1090 fstypename, mntfromname, mntonname);
1093 if (strcmp(fstypename, "ext2") == 0) {
1094 strcpy(fstypename, "ext2fs");
1095 } else if (strcmp(fstypename, "proc") == 0) {
1096 strcpy(fstypename, "linprocfs");
1097 } else if (strcmp(fstypename, "vfat") == 0) {
1098 strcpy(fstypename, "msdosfs");
1103 if ((args->rwflag & 0xffff0000) == 0xc0ed0000) {
1105 * Linux SYNC flag is not included; the closest equivalent
1106 * FreeBSD has is !ASYNC, which is our default.
1108 if (args->rwflag & LINUX_MS_RDONLY)
1109 fsflags |= MNT_RDONLY;
1110 if (args->rwflag & LINUX_MS_NOSUID)
1111 fsflags |= MNT_NOSUID;
1112 if (args->rwflag & LINUX_MS_NOEXEC)
1113 fsflags |= MNT_NOEXEC;
1114 if (args->rwflag & LINUX_MS_REMOUNT)
1115 fsflags |= MNT_UPDATE;
1118 error = kernel_vmount(fsflags,
1119 "fstype", fstypename,
1120 "fspath", mntonname,
1121 "from", mntfromname,
1127 linux_oldumount(struct thread *td, struct linux_oldumount_args *args)
1129 struct linux_umount_args args2;
1131 args2.path = args->path;
1133 return (linux_umount(td, &args2));
1137 linux_umount(struct thread *td, struct linux_umount_args *args)
1139 struct unmount_args bsd;
1141 bsd.path = args->path;
1142 bsd.flags = args->flags; /* XXX correct? */
1143 return (sys_unmount(td, &bsd));
1147 * fcntl family of syscalls
1157 #if defined(__amd64__) && defined(COMPAT_LINUX32)
1163 linux_to_bsd_flock(struct l_flock *linux_flock, struct flock *bsd_flock)
1165 switch (linux_flock->l_type) {
1167 bsd_flock->l_type = F_RDLCK;
1170 bsd_flock->l_type = F_WRLCK;
1173 bsd_flock->l_type = F_UNLCK;
1176 bsd_flock->l_type = -1;
1179 bsd_flock->l_whence = linux_flock->l_whence;
1180 bsd_flock->l_start = (off_t)linux_flock->l_start;
1181 bsd_flock->l_len = (off_t)linux_flock->l_len;
1182 bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
1183 bsd_flock->l_sysid = 0;
1187 bsd_to_linux_flock(struct flock *bsd_flock, struct l_flock *linux_flock)
1189 switch (bsd_flock->l_type) {
1191 linux_flock->l_type = LINUX_F_RDLCK;
1194 linux_flock->l_type = LINUX_F_WRLCK;
1197 linux_flock->l_type = LINUX_F_UNLCK;
1200 linux_flock->l_whence = bsd_flock->l_whence;
1201 linux_flock->l_start = (l_off_t)bsd_flock->l_start;
1202 linux_flock->l_len = (l_off_t)bsd_flock->l_len;
1203 linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid;
1206 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1214 #if defined(__amd64__) && defined(COMPAT_LINUX32)
1220 linux_to_bsd_flock64(struct l_flock64 *linux_flock, struct flock *bsd_flock)
1222 switch (linux_flock->l_type) {
1224 bsd_flock->l_type = F_RDLCK;
1227 bsd_flock->l_type = F_WRLCK;
1230 bsd_flock->l_type = F_UNLCK;
1233 bsd_flock->l_type = -1;
1236 bsd_flock->l_whence = linux_flock->l_whence;
1237 bsd_flock->l_start = (off_t)linux_flock->l_start;
1238 bsd_flock->l_len = (off_t)linux_flock->l_len;
1239 bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
1240 bsd_flock->l_sysid = 0;
1244 bsd_to_linux_flock64(struct flock *bsd_flock, struct l_flock64 *linux_flock)
1246 switch (bsd_flock->l_type) {
1248 linux_flock->l_type = LINUX_F_RDLCK;
1251 linux_flock->l_type = LINUX_F_WRLCK;
1254 linux_flock->l_type = LINUX_F_UNLCK;
1257 linux_flock->l_whence = bsd_flock->l_whence;
1258 linux_flock->l_start = (l_loff_t)bsd_flock->l_start;
1259 linux_flock->l_len = (l_loff_t)bsd_flock->l_len;
1260 linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid;
1262 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1265 fcntl_common(struct thread *td, struct linux_fcntl64_args *args)
1267 struct l_flock linux_flock;
1268 struct flock bsd_flock;
1269 cap_rights_t rights;
1274 switch (args->cmd) {
1276 return (kern_fcntl(td, args->fd, F_DUPFD, args->arg));
1279 return (kern_fcntl(td, args->fd, F_GETFD, 0));
1282 return (kern_fcntl(td, args->fd, F_SETFD, args->arg));
1285 error = kern_fcntl(td, args->fd, F_GETFL, 0);
1286 result = td->td_retval[0];
1287 td->td_retval[0] = 0;
1288 if (result & O_RDONLY)
1289 td->td_retval[0] |= LINUX_O_RDONLY;
1290 if (result & O_WRONLY)
1291 td->td_retval[0] |= LINUX_O_WRONLY;
1292 if (result & O_RDWR)
1293 td->td_retval[0] |= LINUX_O_RDWR;
1294 if (result & O_NDELAY)
1295 td->td_retval[0] |= LINUX_O_NONBLOCK;
1296 if (result & O_APPEND)
1297 td->td_retval[0] |= LINUX_O_APPEND;
1298 if (result & O_FSYNC)
1299 td->td_retval[0] |= LINUX_O_SYNC;
1300 if (result & O_ASYNC)
1301 td->td_retval[0] |= LINUX_FASYNC;
1302 #ifdef LINUX_O_NOFOLLOW
1303 if (result & O_NOFOLLOW)
1304 td->td_retval[0] |= LINUX_O_NOFOLLOW;
1306 #ifdef LINUX_O_DIRECT
1307 if (result & O_DIRECT)
1308 td->td_retval[0] |= LINUX_O_DIRECT;
1314 if (args->arg & LINUX_O_NDELAY)
1316 if (args->arg & LINUX_O_APPEND)
1318 if (args->arg & LINUX_O_SYNC)
1320 if (args->arg & LINUX_FASYNC)
1322 #ifdef LINUX_O_NOFOLLOW
1323 if (args->arg & LINUX_O_NOFOLLOW)
1326 #ifdef LINUX_O_DIRECT
1327 if (args->arg & LINUX_O_DIRECT)
1330 return (kern_fcntl(td, args->fd, F_SETFL, arg));
1333 error = copyin((void *)args->arg, &linux_flock,
1334 sizeof(linux_flock));
1337 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1338 error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock);
1341 bsd_to_linux_flock(&bsd_flock, &linux_flock);
1342 return (copyout(&linux_flock, (void *)args->arg,
1343 sizeof(linux_flock)));
1346 error = copyin((void *)args->arg, &linux_flock,
1347 sizeof(linux_flock));
1350 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1351 return (kern_fcntl(td, args->fd, F_SETLK,
1352 (intptr_t)&bsd_flock));
1354 case LINUX_F_SETLKW:
1355 error = copyin((void *)args->arg, &linux_flock,
1356 sizeof(linux_flock));
1359 linux_to_bsd_flock(&linux_flock, &bsd_flock);
1360 return (kern_fcntl(td, args->fd, F_SETLKW,
1361 (intptr_t)&bsd_flock));
1363 case LINUX_F_GETOWN:
1364 return (kern_fcntl(td, args->fd, F_GETOWN, 0));
1366 case LINUX_F_SETOWN:
1368 * XXX some Linux applications depend on F_SETOWN having no
1369 * significant effect for pipes (SIGIO is not delivered for
1370 * pipes under Linux-2.2.35 at least).
1372 error = fget(td, args->fd,
1373 cap_rights_init(&rights, CAP_FCNTL), &fp);
1376 if (fp->f_type == DTYPE_PIPE) {
1382 return (kern_fcntl(td, args->fd, F_SETOWN, args->arg));
1389 linux_fcntl(struct thread *td, struct linux_fcntl_args *args)
1391 struct linux_fcntl64_args args64;
1395 printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd);
1398 args64.fd = args->fd;
1399 args64.cmd = args->cmd;
1400 args64.arg = args->arg;
1401 return (fcntl_common(td, &args64));
1404 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1406 linux_fcntl64(struct thread *td, struct linux_fcntl64_args *args)
1408 struct l_flock64 linux_flock;
1409 struct flock bsd_flock;
1413 if (ldebug(fcntl64))
1414 printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd);
1417 switch (args->cmd) {
1418 case LINUX_F_GETLK64:
1419 error = copyin((void *)args->arg, &linux_flock,
1420 sizeof(linux_flock));
1423 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1424 error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock);
1427 bsd_to_linux_flock64(&bsd_flock, &linux_flock);
1428 return (copyout(&linux_flock, (void *)args->arg,
1429 sizeof(linux_flock)));
1431 case LINUX_F_SETLK64:
1432 error = copyin((void *)args->arg, &linux_flock,
1433 sizeof(linux_flock));
1436 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1437 return (kern_fcntl(td, args->fd, F_SETLK,
1438 (intptr_t)&bsd_flock));
1440 case LINUX_F_SETLKW64:
1441 error = copyin((void *)args->arg, &linux_flock,
1442 sizeof(linux_flock));
1445 linux_to_bsd_flock64(&linux_flock, &bsd_flock);
1446 return (kern_fcntl(td, args->fd, F_SETLKW,
1447 (intptr_t)&bsd_flock));
1450 return (fcntl_common(td, args));
1452 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1455 linux_chown(struct thread *td, struct linux_chown_args *args)
1460 LCONVPATHEXIST(td, args->path, &path);
1464 printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid);
1466 error = kern_chown(td, path, UIO_SYSSPACE, args->uid, args->gid);
1472 linux_fchownat(struct thread *td, struct linux_fchownat_args *args)
1475 int error, dfd, flag;
1477 if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW)
1480 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
1481 LCONVPATHEXIST_AT(td, args->filename, &path, dfd);
1484 if (ldebug(fchownat))
1485 printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid);
1488 flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 :
1489 AT_SYMLINK_NOFOLLOW;
1490 error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid,
1497 linux_lchown(struct thread *td, struct linux_lchown_args *args)
1502 LCONVPATHEXIST(td, args->path, &path);
1506 printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid);
1508 error = kern_lchown(td, path, UIO_SYSSPACE, args->uid, args->gid);
1514 convert_fadvice(int advice)
1517 case LINUX_POSIX_FADV_NORMAL:
1518 return (POSIX_FADV_NORMAL);
1519 case LINUX_POSIX_FADV_RANDOM:
1520 return (POSIX_FADV_RANDOM);
1521 case LINUX_POSIX_FADV_SEQUENTIAL:
1522 return (POSIX_FADV_SEQUENTIAL);
1523 case LINUX_POSIX_FADV_WILLNEED:
1524 return (POSIX_FADV_WILLNEED);
1525 case LINUX_POSIX_FADV_DONTNEED:
1526 return (POSIX_FADV_DONTNEED);
1527 case LINUX_POSIX_FADV_NOREUSE:
1528 return (POSIX_FADV_NOREUSE);
1535 linux_fadvise64(struct thread *td, struct linux_fadvise64_args *args)
1539 advice = convert_fadvice(args->advice);
1542 return (kern_posix_fadvise(td, args->fd, args->offset, args->len,
1547 linux_fadvise64_64(struct thread *td, struct linux_fadvise64_64_args *args)
1551 advice = convert_fadvice(args->advice);
1554 return (kern_posix_fadvise(td, args->fd, args->offset, args->len,
1559 linux_pipe(struct thread *td, struct linux_pipe_args *args)
1566 printf(ARGS(pipe, "*"));
1569 error = kern_pipe2(td, fildes, 0);
1573 /* XXX: Close descriptors on error. */
1574 return (copyout(fildes, args->pipefds, sizeof(fildes)));
1578 linux_pipe2(struct thread *td, struct linux_pipe2_args *args)
1585 printf(ARGS(pipe2, "*, %d"), args->flags);
1588 if ((args->flags & ~(LINUX_O_NONBLOCK | LINUX_O_CLOEXEC)) != 0)
1592 if ((args->flags & LINUX_O_NONBLOCK) != 0)
1593 flags |= O_NONBLOCK;
1594 if ((args->flags & LINUX_O_CLOEXEC) != 0)
1596 error = kern_pipe2(td, fildes, flags);
1600 /* XXX: Close descriptors on error. */
1601 return (copyout(fildes, args->pipefds, sizeof(fildes)));