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/dirent.h>
37 #include <sys/filedesc.h>
39 #include <sys/malloc.h>
40 #include <sys/mount.h>
41 #include <sys/namei.h>
43 #include <sys/syscallsubr.h>
44 #include <sys/systm.h>
46 #include <sys/vnode.h>
48 #include <sys/fcntl.h>
51 #include <machine/../linux32/linux.h>
52 #include <machine/../linux32/linux32_proto.h>
54 #include <machine/../linux/linux.h>
55 #include <machine/../linux/linux_proto.h>
58 #include <compat/linux/linux_util.h>
59 #include <compat/linux/linux_file.h>
61 #include <security/mac/mac_framework.h>
64 translate_vnhook_major_minor(struct vnode *vp, struct stat *sb)
68 if (vp->v_type == VCHR && vp->v_rdev != NULL &&
69 linux_driver_get_major_minor(vp->v_rdev->si_name,
70 &major, &minor) == 0) {
71 sb->st_rdev = (major << 8 | minor);
76 linux_kern_statat(struct thread *td, int flag, int fd, char *path,
77 enum uio_seg pathseg, struct stat *sbp)
80 return (kern_statat_vnhook(td, flag, fd, path, pathseg, sbp,
81 translate_vnhook_major_minor));
85 linux_kern_stat(struct thread *td, char *path, enum uio_seg pathseg,
89 return (linux_kern_statat(td, 0, AT_FDCWD, path, pathseg, sbp));
93 linux_kern_lstat(struct thread *td, char *path, enum uio_seg pathseg,
97 return (linux_kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, path,
102 * XXX: This was removed from newstat_copyout(), and almost identical
103 * XXX: code was in stat64_copyout(). findcdev() needs to be replaced
104 * XXX: with something that does lookup and locking properly.
105 * XXX: When somebody fixes this: please try to avoid duplicating it.
109 disk_foo(struct somestat *tbuf)
111 struct cdevsw *cdevsw;
114 /* Lie about disk drives which are character devices
115 * in FreeBSD but block devices under Linux.
117 if (S_ISCHR(tbuf.st_mode) &&
118 (dev = findcdev(buf->st_rdev)) != NULL) {
119 cdevsw = dev_refthread(dev);
120 if (cdevsw != NULL) {
121 if (cdevsw->d_flags & D_DISK) {
122 tbuf.st_mode &= ~S_IFMT;
123 tbuf.st_mode |= S_IFBLK;
125 /* XXX this may not be quite right */
126 /* Map major number to 0 */
127 tbuf.st_dev = minor(buf->st_dev) & 0xf;
128 tbuf.st_rdev = buf->st_rdev & 0xff;
138 translate_fd_major_minor(struct thread *td, int fd, struct stat *buf)
144 if ((!S_ISCHR(buf->st_mode) && !S_ISBLK(buf->st_mode)) ||
145 fget(td, fd, &fp) != 0)
148 if (vp != NULL && vp->v_rdev != NULL &&
149 linux_driver_get_major_minor(vp->v_rdev->si_name,
150 &major, &minor) == 0) {
151 buf->st_rdev = (major << 8 | minor);
152 } else if (fp->f_type == DTYPE_PTS) {
153 struct tty *tp = fp->f_data;
155 /* Convert the numbers for the slave device. */
156 if (linux_driver_get_major_minor(tp->t_dev->si_name,
157 &major, &minor) == 0) {
158 buf->st_rdev = (major << 8 | minor);
165 newstat_copyout(struct stat *buf, void *ubuf)
167 struct l_newstat tbuf;
169 bzero(&tbuf, sizeof(tbuf));
170 tbuf.st_dev = minor(buf->st_dev) | (major(buf->st_dev) << 8);
171 tbuf.st_ino = buf->st_ino;
172 tbuf.st_mode = buf->st_mode;
173 tbuf.st_nlink = buf->st_nlink;
174 tbuf.st_uid = buf->st_uid;
175 tbuf.st_gid = buf->st_gid;
176 tbuf.st_rdev = buf->st_rdev;
177 tbuf.st_size = buf->st_size;
178 tbuf.st_atime = buf->st_atime;
179 tbuf.st_mtime = buf->st_mtime;
180 tbuf.st_ctime = buf->st_ctime;
181 tbuf.st_blksize = buf->st_blksize;
182 tbuf.st_blocks = buf->st_blocks;
184 return (copyout(&tbuf, ubuf, sizeof(tbuf)));
188 linux_newstat(struct thread *td, struct linux_newstat_args *args)
194 LCONVPATHEXIST(td, args->path, &path);
198 printf(ARGS(newstat, "%s, *"), path);
201 error = linux_kern_stat(td, path, UIO_SYSSPACE, &buf);
205 return (newstat_copyout(&buf, args->buf));
209 linux_newlstat(struct thread *td, struct linux_newlstat_args *args)
215 LCONVPATHEXIST(td, args->path, &path);
218 if (ldebug(newlstat))
219 printf(ARGS(newlstat, "%s, *"), path);
222 error = linux_kern_lstat(td, path, UIO_SYSSPACE, &sb);
226 return (newstat_copyout(&sb, args->buf));
230 linux_newfstat(struct thread *td, struct linux_newfstat_args *args)
236 if (ldebug(newfstat))
237 printf(ARGS(newfstat, "%d, *"), args->fd);
240 error = kern_fstat(td, args->fd, &buf);
241 translate_fd_major_minor(td, args->fd, &buf);
243 error = newstat_copyout(&buf, args->buf);
249 stat_copyout(struct stat *buf, void *ubuf)
253 bzero(&lbuf, sizeof(lbuf));
254 lbuf.st_dev = buf->st_dev;
255 lbuf.st_ino = buf->st_ino;
256 lbuf.st_mode = buf->st_mode;
257 lbuf.st_nlink = buf->st_nlink;
258 lbuf.st_uid = buf->st_uid;
259 lbuf.st_gid = buf->st_gid;
260 lbuf.st_rdev = buf->st_rdev;
261 if (buf->st_size < (quad_t)1 << 32)
262 lbuf.st_size = buf->st_size;
265 lbuf.st_atime = buf->st_atime;
266 lbuf.st_mtime = buf->st_mtime;
267 lbuf.st_ctime = buf->st_ctime;
268 lbuf.st_blksize = buf->st_blksize;
269 lbuf.st_blocks = buf->st_blocks;
270 lbuf.st_flags = buf->st_flags;
271 lbuf.st_gen = buf->st_gen;
273 return (copyout(&lbuf, ubuf, sizeof(lbuf)));
277 linux_stat(struct thread *td, struct linux_stat_args *args)
283 LCONVPATHEXIST(td, args->path, &path);
287 printf(ARGS(stat, "%s, *"), path);
289 error = linux_kern_stat(td, path, UIO_SYSSPACE, &buf);
295 return(stat_copyout(&buf, args->up));
299 linux_lstat(struct thread *td, struct linux_lstat_args *args)
305 LCONVPATHEXIST(td, args->path, &path);
309 printf(ARGS(lstat, "%s, *"), path);
311 error = linux_kern_lstat(td, path, UIO_SYSSPACE, &buf);
317 return(stat_copyout(&buf, args->up));
320 /* XXX - All fields of type l_int are defined as l_long on i386 */
334 #define LINUX_CODA_SUPER_MAGIC 0x73757245L
335 #define LINUX_EXT2_SUPER_MAGIC 0xEF53L
336 #define LINUX_HPFS_SUPER_MAGIC 0xf995e849L
337 #define LINUX_ISOFS_SUPER_MAGIC 0x9660L
338 #define LINUX_MSDOS_SUPER_MAGIC 0x4d44L
339 #define LINUX_NCP_SUPER_MAGIC 0x564cL
340 #define LINUX_NFS_SUPER_MAGIC 0x6969L
341 #define LINUX_NTFS_SUPER_MAGIC 0x5346544EL
342 #define LINUX_PROC_SUPER_MAGIC 0x9fa0L
343 #define LINUX_UFS_SUPER_MAGIC 0x00011954L /* XXX - UFS_MAGIC in Linux */
344 #define LINUX_DEVFS_SUPER_MAGIC 0x1373L
347 bsd_to_linux_ftype(const char *fstypename)
350 static struct {const char *bsd_name; long linux_type;} b2l_tbl[] = {
351 {"ufs", LINUX_UFS_SUPER_MAGIC},
352 {"cd9660", LINUX_ISOFS_SUPER_MAGIC},
353 {"nfs", LINUX_NFS_SUPER_MAGIC},
354 {"ext2fs", LINUX_EXT2_SUPER_MAGIC},
355 {"procfs", LINUX_PROC_SUPER_MAGIC},
356 {"msdosfs", LINUX_MSDOS_SUPER_MAGIC},
357 {"ntfs", LINUX_NTFS_SUPER_MAGIC},
358 {"nwfs", LINUX_NCP_SUPER_MAGIC},
359 {"hpfs", LINUX_HPFS_SUPER_MAGIC},
360 {"coda", LINUX_CODA_SUPER_MAGIC},
361 {"devfs", LINUX_DEVFS_SUPER_MAGIC},
364 for (i = 0; b2l_tbl[i].bsd_name != NULL; i++)
365 if (strcmp(b2l_tbl[i].bsd_name, fstypename) == 0)
366 return (b2l_tbl[i].linux_type);
372 bsd_to_linux_statfs(struct statfs *bsd_statfs, struct l_statfs *linux_statfs)
375 linux_statfs->f_type = bsd_to_linux_ftype(bsd_statfs->f_fstypename);
376 linux_statfs->f_bsize = bsd_statfs->f_bsize;
377 linux_statfs->f_blocks = bsd_statfs->f_blocks;
378 linux_statfs->f_bfree = bsd_statfs->f_bfree;
379 linux_statfs->f_bavail = bsd_statfs->f_bavail;
380 linux_statfs->f_ffree = bsd_statfs->f_ffree;
381 linux_statfs->f_files = bsd_statfs->f_files;
382 linux_statfs->f_fsid.val[0] = bsd_statfs->f_fsid.val[0];
383 linux_statfs->f_fsid.val[1] = bsd_statfs->f_fsid.val[1];
384 linux_statfs->f_namelen = MAXNAMLEN;
388 linux_statfs(struct thread *td, struct linux_statfs_args *args)
390 struct l_statfs linux_statfs;
391 struct statfs bsd_statfs;
395 LCONVPATHEXIST(td, args->path, &path);
399 printf(ARGS(statfs, "%s, *"), path);
401 error = kern_statfs(td, path, UIO_SYSSPACE, &bsd_statfs);
405 bsd_to_linux_statfs(&bsd_statfs, &linux_statfs);
406 return copyout(&linux_statfs, args->buf, sizeof(linux_statfs));
410 bsd_to_linux_statfs64(struct statfs *bsd_statfs, struct l_statfs64 *linux_statfs)
413 linux_statfs->f_type = bsd_to_linux_ftype(bsd_statfs->f_fstypename);
414 linux_statfs->f_bsize = bsd_statfs->f_bsize;
415 linux_statfs->f_blocks = bsd_statfs->f_blocks;
416 linux_statfs->f_bfree = bsd_statfs->f_bfree;
417 linux_statfs->f_bavail = bsd_statfs->f_bavail;
418 linux_statfs->f_ffree = bsd_statfs->f_ffree;
419 linux_statfs->f_files = bsd_statfs->f_files;
420 linux_statfs->f_fsid.val[0] = bsd_statfs->f_fsid.val[0];
421 linux_statfs->f_fsid.val[1] = bsd_statfs->f_fsid.val[1];
422 linux_statfs->f_namelen = MAXNAMLEN;
426 linux_statfs64(struct thread *td, struct linux_statfs64_args *args)
428 struct l_statfs64 linux_statfs;
429 struct statfs bsd_statfs;
433 if (args->bufsize != sizeof(struct l_statfs64))
436 LCONVPATHEXIST(td, args->path, &path);
439 if (ldebug(statfs64))
440 printf(ARGS(statfs64, "%s, *"), path);
442 error = kern_statfs(td, path, UIO_SYSSPACE, &bsd_statfs);
446 bsd_to_linux_statfs64(&bsd_statfs, &linux_statfs);
447 return copyout(&linux_statfs, args->buf, sizeof(linux_statfs));
451 linux_fstatfs(struct thread *td, struct linux_fstatfs_args *args)
453 struct l_statfs linux_statfs;
454 struct statfs bsd_statfs;
459 printf(ARGS(fstatfs, "%d, *"), args->fd);
461 error = kern_fstatfs(td, args->fd, &bsd_statfs);
464 bsd_to_linux_statfs(&bsd_statfs, &linux_statfs);
465 return copyout(&linux_statfs, args->buf, sizeof(linux_statfs));
477 linux_ustat(struct thread *td, struct linux_ustat_args *args)
481 printf(ARGS(ustat, "%d, *"), args->dev);
487 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
490 stat64_copyout(struct stat *buf, void *ubuf)
492 struct l_stat64 lbuf;
494 bzero(&lbuf, sizeof(lbuf));
495 lbuf.st_dev = minor(buf->st_dev) | (major(buf->st_dev) << 8);
496 lbuf.st_ino = buf->st_ino;
497 lbuf.st_mode = buf->st_mode;
498 lbuf.st_nlink = buf->st_nlink;
499 lbuf.st_uid = buf->st_uid;
500 lbuf.st_gid = buf->st_gid;
501 lbuf.st_rdev = buf->st_rdev;
502 lbuf.st_size = buf->st_size;
503 lbuf.st_atime = buf->st_atime;
504 lbuf.st_mtime = buf->st_mtime;
505 lbuf.st_ctime = buf->st_ctime;
506 lbuf.st_blksize = buf->st_blksize;
507 lbuf.st_blocks = buf->st_blocks;
510 * The __st_ino field makes all the difference. In the Linux kernel
511 * it is conditionally compiled based on STAT64_HAS_BROKEN_ST_INO,
512 * but without the assignment to __st_ino the runtime linker refuses
513 * to mmap(2) any shared libraries. I guess it's broken alright :-)
515 lbuf.__st_ino = buf->st_ino;
517 return (copyout(&lbuf, ubuf, sizeof(lbuf)));
521 linux_stat64(struct thread *td, struct linux_stat64_args *args)
527 LCONVPATHEXIST(td, args->filename, &filename);
531 printf(ARGS(stat64, "%s, *"), filename);
534 error = linux_kern_stat(td, filename, UIO_SYSSPACE, &buf);
538 return (stat64_copyout(&buf, args->statbuf));
542 linux_lstat64(struct thread *td, struct linux_lstat64_args *args)
548 LCONVPATHEXIST(td, args->filename, &filename);
552 printf(ARGS(lstat64, "%s, *"), args->filename);
555 error = linux_kern_lstat(td, filename, UIO_SYSSPACE, &sb);
559 return (stat64_copyout(&sb, args->statbuf));
563 linux_fstat64(struct thread *td, struct linux_fstat64_args *args)
570 printf(ARGS(fstat64, "%d, *"), args->fd);
573 error = kern_fstat(td, args->fd, &buf);
574 translate_fd_major_minor(td, args->fd, &buf);
576 error = stat64_copyout(&buf, args->statbuf);
582 linux_fstatat64(struct thread *td, struct linux_fstatat64_args *args)
585 int error, dfd, flag;
588 if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW)
590 flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) ?
591 AT_SYMLINK_NOFOLLOW : 0;
593 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
594 LCONVPATHEXIST_AT(td, args->pathname, &path, dfd);
597 if (ldebug(fstatat64))
598 printf(ARGS(fstatat64, "%i, %s, %i"), args->dfd, path, args->flag);
601 error = linux_kern_statat(td, flag, dfd, path, UIO_SYSSPACE, &buf);
603 error = stat64_copyout(&buf, args->statbuf);
609 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */