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.
28 * $FreeBSD: src/sys/compat/linux/linux_stats.c,v 1.22.2.3 2001/11/05 19:08:23 marcel Exp $
31 #include <sys/param.h>
32 #include <sys/systm.h>
34 #include <sys/dirent.h>
36 #include <sys/filedesc.h>
38 #include <sys/mount.h>
39 #include <sys/nlookup.h>
41 #include <sys/sysctl.h>
42 #include <sys/systm.h>
43 #include <sys/unistd.h>
44 #include <sys/vnode.h>
45 #include <sys/device.h>
46 #include <sys/kern_syscall.h>
47 #include <emulation/43bsd/stat.h>
49 #include <sys/file2.h>
50 #include <sys/mplock2.h>
52 #include <arch_linux/linux.h>
53 #include <arch_linux/linux_proto.h>
54 #include "linux_util.h"
57 newstat_copyout(struct stat *buf, void *ubuf)
59 struct l_newstat tbuf;
62 bzero(&tbuf, sizeof(tbuf));
63 tbuf.st_dev = uminor(buf->st_dev) | (umajor(buf->st_dev) << 8);
64 tbuf.st_ino = INO64TO32(buf->st_ino);
65 tbuf.st_mode = buf->st_mode;
66 tbuf.st_nlink = buf->st_nlink;
67 tbuf.st_uid = buf->st_uid;
68 tbuf.st_gid = buf->st_gid;
69 tbuf.st_rdev = buf->st_rdev;
70 tbuf.st_size = buf->st_size;
71 tbuf.st_atime = buf->st_atime;
72 tbuf.st_mtime = buf->st_mtime;
73 tbuf.st_ctime = buf->st_ctime;
74 tbuf.st_blksize = buf->st_blksize;
75 tbuf.st_blocks = buf->st_blocks;
77 error = copyout(&tbuf, ubuf, sizeof(tbuf));
82 ostat_copyout(struct stat *st, struct ostat *uaddr)
87 ost.st_dev = st->st_dev;
88 ost.st_ino = st->st_ino;
89 ost.st_mode = st->st_mode;
90 ost.st_nlink = st->st_nlink;
91 ost.st_uid = st->st_uid;
92 ost.st_gid = st->st_gid;
93 ost.st_rdev = st->st_rdev;
94 if (st->st_size < (quad_t)1 << 32)
95 ost.st_size = st->st_size;
98 ost.st_atime = st->st_atime;
99 ost.st_mtime = st->st_mtime;
100 ost.st_ctime = st->st_ctime;
101 ost.st_blksize = st->st_blksize;
102 ost.st_blocks = st->st_blocks;
103 ost.st_flags = st->st_flags;
104 ost.st_gen = st->st_gen;
106 error = copyout(&ost, uaddr, sizeof(ost));
114 sys_linux_newstat(struct linux_newstat_args *args)
117 struct nlookupdata nd;
121 error = linux_copyin_path(args->path, &path, LINUX_PATH_EXISTS);
126 kprintf(ARGS(newstat, "%s, *"), path);
129 error = nlookup_init(&nd, path, UIO_SYSSPACE, NLC_FOLLOW);
131 error = kern_stat(&nd, &buf);
133 error = newstat_copyout(&buf, args->buf);
137 linux_free_path(&path);
145 sys_linux_newlstat(struct linux_newlstat_args *args)
148 struct nlookupdata nd;
152 error = linux_copyin_path(args->path, &path, LINUX_PATH_EXISTS);
156 if (ldebug(newlstat))
157 kprintf(ARGS(newlstat, "%s, *"), path);
160 error = nlookup_init(&nd, path, UIO_SYSSPACE, 0);
162 error = kern_stat(&nd, &sb);
164 error = newstat_copyout(&sb, args->buf);
168 linux_free_path(&path);
176 sys_linux_newfstat(struct linux_newfstat_args *args)
182 if (ldebug(newfstat))
183 kprintf(ARGS(newfstat, "%d, *"), args->fd);
186 error = kern_fstat(args->fd, &buf);
190 error = newstat_copyout(&buf, args->buf);
194 /* XXX - All fields of type l_int are defined as l_long on i386 */
208 #define LINUX_CODA_SUPER_MAGIC 0x73757245L
209 #define LINUX_EXT2_SUPER_MAGIC 0xEF53L
210 #define LINUX_HPFS_SUPER_MAGIC 0xf995e849L
211 #define LINUX_ISOFS_SUPER_MAGIC 0x9660L
212 #define LINUX_MSDOS_SUPER_MAGIC 0x4d44L
213 #define LINUX_NCP_SUPER_MAGIC 0x564cL
214 #define LINUX_NFS_SUPER_MAGIC 0x6969L
215 #define LINUX_NTFS_SUPER_MAGIC 0x5346544EL
216 #define LINUX_PROC_SUPER_MAGIC 0x9fa0L
217 #define LINUX_UFS_SUPER_MAGIC 0x00011954L /* XXX - UFS_MAGIC in Linux */
220 bsd_to_linux_ftype(const char *fstypename)
223 static struct {const char *bsd_name; long linux_type;} b2l_tbl[] = {
224 {"ufs", LINUX_UFS_SUPER_MAGIC},
225 {"cd9660", LINUX_ISOFS_SUPER_MAGIC},
226 {"nfs", LINUX_NFS_SUPER_MAGIC},
227 {"ext2fs", LINUX_EXT2_SUPER_MAGIC},
228 {"procfs", LINUX_PROC_SUPER_MAGIC},
229 {"msdosfs", LINUX_MSDOS_SUPER_MAGIC},
230 {"ntfs", LINUX_NTFS_SUPER_MAGIC},
231 {"hpfs", LINUX_HPFS_SUPER_MAGIC},
234 for (i = 0; b2l_tbl[i].bsd_name != NULL; i++)
235 if (strcmp(b2l_tbl[i].bsd_name, fstypename) == 0)
236 return (b2l_tbl[i].linux_type);
242 statfs_copyout(struct statfs *statfs, struct l_statfs_buf *buf, l_int namelen)
244 struct l_statfs linux_statfs;
247 linux_statfs.f_type = bsd_to_linux_ftype(statfs->f_fstypename);
248 linux_statfs.f_bsize = statfs->f_bsize;
249 linux_statfs.f_blocks = statfs->f_blocks;
250 linux_statfs.f_bfree = statfs->f_bfree;
251 linux_statfs.f_bavail = statfs->f_bavail;
252 linux_statfs.f_ffree = statfs->f_ffree;
253 linux_statfs.f_files = statfs->f_files;
254 linux_statfs.f_fsid.val[0] = statfs->f_fsid.val[0];
255 linux_statfs.f_fsid.val[1] = statfs->f_fsid.val[1];
256 linux_statfs.f_namelen = namelen;
258 error = copyout(&linux_statfs, buf, sizeof(linux_statfs));
266 sys_linux_statfs(struct linux_statfs_args *args)
268 struct statfs statfs;
269 struct nlookupdata nd;
273 error = linux_copyin_path(args->path, &path, LINUX_PATH_EXISTS);
278 kprintf(ARGS(statfs, "%s, *"), path);
281 error = nlookup_init(&nd, path, UIO_SYSSPACE, NLC_FOLLOW);
283 error = kern_statfs(&nd, &statfs);
285 if (nd.nl_nch.ncp->nc_vp != NULL)
286 error = vn_get_namelen(nd.nl_nch.ncp->nc_vp, &namelen);
293 error = statfs_copyout(&statfs, args->buf, (l_int)namelen);
294 linux_free_path(&path);
302 sys_linux_fstatfs(struct linux_fstatfs_args *args)
304 struct proc *p = curthread->td_proc;
306 struct statfs statfs;
311 kprintf(ARGS(fstatfs, "%d, *"), args->fd);
314 if ((error = kern_fstatfs(args->fd, &statfs)) != 0)
316 if ((error = holdvnode(p->p_fd, args->fd, &fp)) != 0)
318 error = vn_get_namelen((struct vnode *)fp->f_data, &namelen);
322 error = statfs_copyout(&statfs, args->buf, (l_int)namelen);
338 sys_linux_ustat(struct linux_ustat_args *args)
340 struct thread *td = curthread;
349 kprintf(ARGS(ustat, "%d, *"), args->dev);
353 * lu.f_fname and lu.f_fpack are not used. They are always zeroed.
354 * lu.f_tinode and lu.f_tfree are set from the device's super block.
356 bzero(&lu, sizeof(lu));
359 * XXX - Don't return an error if we can't find a vnode for the
360 * device. Our cdev_t is 32-bits whereas Linux only has a 16-bits
361 * cdev_t. The dev_t that is used now may as well be a truncated
362 * cdev_t returned from previous syscalls. Just return a bzeroed
363 * ustat in that case.
366 dev = udev2dev(makeudev(args->dev >> 8, args->dev & 0xFF), 0);
367 if (dev != NULL && vfinddev(dev, VCHR, &vp)) {
368 if (vp->v_mount == NULL) {
373 stat = &(vp->v_mount->mnt_stat);
374 error = VFS_STATFS(vp->v_mount, stat, td->td_ucred);
377 lu.f_tfree = stat->f_bfree;
378 lu.f_tinode = stat->f_ffree;
386 error = copyout(&lu, args->ubuf, sizeof(lu));
390 #if defined(__i386__)
393 stat64_copyout(struct stat *buf, void *ubuf)
395 struct l_stat64 lbuf;
398 bzero(&lbuf, sizeof(lbuf));
399 lbuf.st_dev = uminor(buf->st_dev) | (umajor(buf->st_dev) << 8);
400 lbuf.st_ino = INO64TO32(buf->st_ino);
401 lbuf.st_mode = buf->st_mode;
402 lbuf.st_nlink = buf->st_nlink;
403 lbuf.st_uid = buf->st_uid;
404 lbuf.st_gid = buf->st_gid;
405 lbuf.st_rdev = buf->st_rdev;
406 lbuf.st_size = buf->st_size;
407 lbuf.st_atime = buf->st_atime;
408 lbuf.st_mtime = buf->st_mtime;
409 lbuf.st_ctime = buf->st_ctime;
410 lbuf.st_blksize = buf->st_blksize;
411 lbuf.st_blocks = buf->st_blocks;
414 * The __st_ino field makes all the difference. In the Linux kernel
415 * it is conditionally compiled based on STAT64_HAS_BROKEN_ST_INO,
416 * but without the assignment to __st_ino the runtime linker refuses
417 * to mmap(2) any shared libraries. I guess it's broken alright :-)
419 lbuf.__st_ino = INO64TO32(buf->st_ino);
421 error = copyout(&lbuf, ubuf, sizeof(lbuf));
429 sys_linux_stat64(struct linux_stat64_args *args)
431 struct nlookupdata nd;
436 error = linux_copyin_path(args->filename, &path, LINUX_PATH_EXISTS);
441 kprintf(ARGS(stat64, "%s, *"), path);
444 error = nlookup_init(&nd, path, UIO_SYSSPACE, NLC_FOLLOW);
446 error = kern_stat(&nd, &buf);
451 error = stat64_copyout(&buf, args->statbuf);
452 linux_free_path(&path);
460 sys_linux_lstat64(struct linux_lstat64_args *args)
462 struct nlookupdata nd;
467 error = linux_copyin_path(args->filename, &path, LINUX_PATH_EXISTS);
472 kprintf(ARGS(lstat64, "%s, *"), path);
475 error = nlookup_init(&nd, path, UIO_SYSSPACE, 0);
477 error = kern_stat(&nd, &sb);
482 error = stat64_copyout(&sb, args->statbuf);
483 linux_free_path(&path);
491 sys_linux_fstat64(struct linux_fstat64_args *args)
498 kprintf(ARGS(fstat64, "%d, *"), args->fd);
501 error = kern_fstat(args->fd, &buf);
505 error = stat64_copyout(&buf, args->statbuf);
510 sys_linux_fstatat64(struct linux_fstatat64_args *args)
512 struct nlookupdata nd;
516 int error, flags, dfd;
518 if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW)
521 error = linux_copyin_path(args->path, &path, LINUX_PATH_EXISTS);
525 if (ldebug(fstatat64))
526 kprintf(ARGS(fstatat64, "%s"), path);
528 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
529 flags = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) ? 0 : NLC_FOLLOW;
531 error = nlookup_init_at(&nd, &fp, dfd, path, UIO_SYSSPACE, flags);
533 error = kern_stat(&nd, &st);
535 error = stat64_copyout(&st, args->statbuf);
537 nlookup_done_at(&nd, fp);
538 linux_free_path(&path);
543 sys_linux_ostat(struct linux_ostat_args *args)
545 struct nlookupdata nd;
550 error = linux_copyin_path(args->path, &path, LINUX_PATH_EXISTS);
555 kprintf(ARGS(ostat, "%s, *"), path);
558 error = nlookup_init(&nd, path, UIO_SYSSPACE, NLC_FOLLOW);
560 error = kern_stat(&nd, &buf);
565 error = ostat_copyout(&buf, args->statbuf);
566 linux_free_path(&path);
570 #endif /* __i386__ */