1/*-
2 * Copyright (c) 1994-1995 S�ren Schmidt
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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
16 *
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.
27 */
28
29#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 1994-1995 S�ren Schmidt
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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
16 *
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.
27 */
28
29#include <sys/cdefs.h>
|
80 cdevsw = devsw(dev);
81 if (cdevsw != NULL && (cdevsw->d_flags & D_DISK)) {
82 tbuf.st_mode &= ~S_IFMT;
83 tbuf.st_mode |= S_IFBLK;
84
85 /* XXX this may not be quite right */
86 /* Map major number to 0 */
87 tbuf.st_dev = uminor(buf->st_dev) & 0xf;
88 tbuf.st_rdev = buf->st_rdev & 0xff;
89 }
90 }
91
92 return (copyout(&tbuf, ubuf, sizeof(tbuf)));
93}
94
95int
96linux_newstat(struct thread *td, struct linux_newstat_args *args)
97{
98 struct stat buf;
99 struct nameidata nd;
100 char *path;
101 int error;
102
103 LCONVPATHEXIST(td, args->path, &path);
104
105#ifdef DEBUG
106 if (ldebug(newstat))
107 printf(ARGS(newstat, "%s, *"), path);
108#endif
109
110 NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, path, td);
111 error = namei(&nd);
112 LFREEPATH(path);
113 if (error)
114 return (error);
115 NDFREE(&nd, NDF_ONLY_PNBUF);
116
117 error = vn_stat(nd.ni_vp, &buf, td->td_ucred, NOCRED, td);
118 vput(nd.ni_vp);
119 if (error)
120 return (error);
121
122 return (newstat_copyout(&buf, args->buf));
123}
124
125int
126linux_newlstat(struct thread *td, struct linux_newlstat_args *args)
127{
128 int error;
129 struct stat sb;
130 struct nameidata nd;
131 char *path;
132
133 LCONVPATHEXIST(td, args->path, &path);
134
135#ifdef DEBUG
136 if (ldebug(newlstat))
137 printf(ARGS(newlstat, "%s, *"), path);
138#endif
139
140 NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, path,
141 td);
142 error = namei(&nd);
143 LFREEPATH(path);
144 if (error)
145 return (error);
146 NDFREE(&nd, NDF_ONLY_PNBUF);
147
148 error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
149 vput(nd.ni_vp);
150 if (error)
151 return (error);
152
153 return (newstat_copyout(&sb, args->buf));
154}
155
156int
157linux_newfstat(struct thread *td, struct linux_newfstat_args *args)
158{
159 struct file *fp;
160 struct stat buf;
161 int error;
162
163#ifdef DEBUG
164 if (ldebug(newfstat))
165 printf(ARGS(newfstat, "%d, *"), args->fd);
166#endif
167
168 if ((error = fget(td, args->fd, &fp)) != 0)
169 return (error);
170
171 error = fo_stat(fp, &buf, td->td_ucred, td);
172 fdrop(fp, td);
173 if (!error)
174 error = newstat_copyout(&buf, args->buf);
175
176 return (error);
177}
178
179/* XXX - All fields of type l_int are defined as l_long on i386 */
180struct l_statfs {
181 l_int f_type;
182 l_int f_bsize;
183 l_int f_blocks;
184 l_int f_bfree;
185 l_int f_bavail;
186 l_int f_files;
187 l_int f_ffree;
188 l_fsid_t f_fsid;
189 l_int f_namelen;
190 l_int f_spare[6];
191};
192
193#define LINUX_CODA_SUPER_MAGIC 0x73757245L
194#define LINUX_EXT2_SUPER_MAGIC 0xEF53L
195#define LINUX_HPFS_SUPER_MAGIC 0xf995e849L
196#define LINUX_ISOFS_SUPER_MAGIC 0x9660L
197#define LINUX_MSDOS_SUPER_MAGIC 0x4d44L
198#define LINUX_NCP_SUPER_MAGIC 0x564cL
199#define LINUX_NFS_SUPER_MAGIC 0x6969L
200#define LINUX_NTFS_SUPER_MAGIC 0x5346544EL
201#define LINUX_PROC_SUPER_MAGIC 0x9fa0L
202#define LINUX_UFS_SUPER_MAGIC 0x00011954L /* XXX - UFS_MAGIC in Linux */
203
204static long
205bsd_to_linux_ftype(const char *fstypename)
206{
207 int i;
208 static struct {const char *bsd_name; long linux_type;} b2l_tbl[] = {
209 {"ufs", LINUX_UFS_SUPER_MAGIC},
210 {"cd9660", LINUX_ISOFS_SUPER_MAGIC},
211 {"nfs", LINUX_NFS_SUPER_MAGIC},
212 {"ext2fs", LINUX_EXT2_SUPER_MAGIC},
213 {"procfs", LINUX_PROC_SUPER_MAGIC},
214 {"msdosfs", LINUX_MSDOS_SUPER_MAGIC},
215 {"ntfs", LINUX_NTFS_SUPER_MAGIC},
216 {"nwfs", LINUX_NCP_SUPER_MAGIC},
217 {"hpfs", LINUX_HPFS_SUPER_MAGIC},
218 {"coda", LINUX_CODA_SUPER_MAGIC},
219 {NULL, 0L}};
220
221 for (i = 0; b2l_tbl[i].bsd_name != NULL; i++)
222 if (strcmp(b2l_tbl[i].bsd_name, fstypename) == 0)
223 return (b2l_tbl[i].linux_type);
224
225 return (0L);
226}
227
228int
229linux_statfs(struct thread *td, struct linux_statfs_args *args)
230{
231 struct mount *mp;
232 struct nameidata *ndp;
233 struct statfs *bsd_statfs;
234 struct nameidata nd;
235 struct l_statfs linux_statfs;
236 char *path;
237 int error;
238
239 LCONVPATHEXIST(td, args->path, &path);
240
241#ifdef DEBUG
242 if (ldebug(statfs))
243 printf(ARGS(statfs, "%s, *"), path);
244#endif
245 ndp = &nd;
246 NDINIT(ndp, LOOKUP, FOLLOW, UIO_SYSSPACE, path, td);
247 error = namei(ndp);
248 LFREEPATH(path);
249 if (error)
250 return error;
251 NDFREE(ndp, NDF_ONLY_PNBUF);
252 mp = ndp->ni_vp->v_mount;
253 bsd_statfs = &mp->mnt_stat;
254 vrele(ndp->ni_vp);
255#ifdef MAC
256 error = mac_check_mount_stat(td->td_ucred, mp);
257 if (error)
258 return (error);
259#endif
260 error = VFS_STATFS(mp, bsd_statfs, td);
261 if (error)
262 return error;
263 bsd_statfs->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
264 linux_statfs.f_type = bsd_to_linux_ftype(bsd_statfs->f_fstypename);
265 linux_statfs.f_bsize = bsd_statfs->f_bsize;
266 linux_statfs.f_blocks = bsd_statfs->f_blocks;
267 linux_statfs.f_bfree = bsd_statfs->f_bfree;
268 linux_statfs.f_bavail = bsd_statfs->f_bavail;
269 linux_statfs.f_ffree = bsd_statfs->f_ffree;
270 linux_statfs.f_files = bsd_statfs->f_files;
271 if (suser(td)) {
272 linux_statfs.f_fsid.val[0] = 0;
273 linux_statfs.f_fsid.val[1] = 0;
274 } else {
275 linux_statfs.f_fsid.val[0] = bsd_statfs->f_fsid.val[0];
276 linux_statfs.f_fsid.val[1] = bsd_statfs->f_fsid.val[1];
277 }
278 linux_statfs.f_namelen = MAXNAMLEN;
279 return copyout(&linux_statfs, args->buf, sizeof(linux_statfs));
280}
281
282int
283linux_fstatfs(struct thread *td, struct linux_fstatfs_args *args)
284{
285 struct file *fp;
286 struct mount *mp;
287 struct statfs *bsd_statfs;
288 struct l_statfs linux_statfs;
289 int error;
290
291#ifdef DEBUG
292 if (ldebug(fstatfs))
293 printf(ARGS(fstatfs, "%d, *"), args->fd);
294#endif
295 error = getvnode(td->td_proc->p_fd, args->fd, &fp);
296 if (error)
297 return error;
298 mp = fp->f_vnode->v_mount;
299#ifdef MAC
300 error = mac_check_mount_stat(td->td_ucred, mp);
301 if (error) {
302 fdrop(fp, td);
303 return (error);
304 }
305#endif
306 bsd_statfs = &mp->mnt_stat;
307 error = VFS_STATFS(mp, bsd_statfs, td);
308 if (error) {
309 fdrop(fp, td);
310 return error;
311 }
312 bsd_statfs->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
313 linux_statfs.f_type = bsd_to_linux_ftype(bsd_statfs->f_fstypename);
314 linux_statfs.f_bsize = bsd_statfs->f_bsize;
315 linux_statfs.f_blocks = bsd_statfs->f_blocks;
316 linux_statfs.f_bfree = bsd_statfs->f_bfree;
317 linux_statfs.f_bavail = bsd_statfs->f_bavail;
318 linux_statfs.f_ffree = bsd_statfs->f_ffree;
319 linux_statfs.f_files = bsd_statfs->f_files;
320 if (suser(td)) {
321 linux_statfs.f_fsid.val[0] = 0;
322 linux_statfs.f_fsid.val[1] = 0;
323 } else {
324 linux_statfs.f_fsid.val[0] = bsd_statfs->f_fsid.val[0];
325 linux_statfs.f_fsid.val[1] = bsd_statfs->f_fsid.val[1];
326 }
327 linux_statfs.f_namelen = MAXNAMLEN;
328 error = copyout(&linux_statfs, args->buf, sizeof(linux_statfs));
329 fdrop(fp, td);
330 return error;
331}
332
333struct l_ustat
334{
335 l_daddr_t f_tfree;
336 l_ino_t f_tinode;
337 char f_fname[6];
338 char f_fpack[6];
339};
340
341int
342linux_ustat(struct thread *td, struct linux_ustat_args *args)
343{
344 struct l_ustat lu;
345 struct cdev *dev;
346 struct vnode *vp;
347 struct statfs *stat;
348 int error;
349
350#ifdef DEBUG
351 if (ldebug(ustat))
352 printf(ARGS(ustat, "%d, *"), args->dev);
353#endif
354
355 /*
356 * lu.f_fname and lu.f_fpack are not used. They are always zeroed.
357 * lu.f_tinode and lu.f_tfree are set from the device's super block.
358 */
359 bzero(&lu, sizeof(lu));
360
361 /*
362 * XXX - Don't return an error if we can't find a vnode for the
363 * device. Our struct cdev *is 32-bits whereas Linux only has a 16-bits
364 * struct cdev *. The struct cdev *that is used now may as well be a truncated
365 * struct cdev *returned from previous syscalls. Just return a bzeroed
366 * ustat in that case.
367 */
| 80 cdevsw = devsw(dev);
81 if (cdevsw != NULL && (cdevsw->d_flags & D_DISK)) {
82 tbuf.st_mode &= ~S_IFMT;
83 tbuf.st_mode |= S_IFBLK;
84
85 /* XXX this may not be quite right */
86 /* Map major number to 0 */
87 tbuf.st_dev = uminor(buf->st_dev) & 0xf;
88 tbuf.st_rdev = buf->st_rdev & 0xff;
89 }
90 }
91
92 return (copyout(&tbuf, ubuf, sizeof(tbuf)));
93}
94
95int
96linux_newstat(struct thread *td, struct linux_newstat_args *args)
97{
98 struct stat buf;
99 struct nameidata nd;
100 char *path;
101 int error;
102
103 LCONVPATHEXIST(td, args->path, &path);
104
105#ifdef DEBUG
106 if (ldebug(newstat))
107 printf(ARGS(newstat, "%s, *"), path);
108#endif
109
110 NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, path, td);
111 error = namei(&nd);
112 LFREEPATH(path);
113 if (error)
114 return (error);
115 NDFREE(&nd, NDF_ONLY_PNBUF);
116
117 error = vn_stat(nd.ni_vp, &buf, td->td_ucred, NOCRED, td);
118 vput(nd.ni_vp);
119 if (error)
120 return (error);
121
122 return (newstat_copyout(&buf, args->buf));
123}
124
125int
126linux_newlstat(struct thread *td, struct linux_newlstat_args *args)
127{
128 int error;
129 struct stat sb;
130 struct nameidata nd;
131 char *path;
132
133 LCONVPATHEXIST(td, args->path, &path);
134
135#ifdef DEBUG
136 if (ldebug(newlstat))
137 printf(ARGS(newlstat, "%s, *"), path);
138#endif
139
140 NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, path,
141 td);
142 error = namei(&nd);
143 LFREEPATH(path);
144 if (error)
145 return (error);
146 NDFREE(&nd, NDF_ONLY_PNBUF);
147
148 error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
149 vput(nd.ni_vp);
150 if (error)
151 return (error);
152
153 return (newstat_copyout(&sb, args->buf));
154}
155
156int
157linux_newfstat(struct thread *td, struct linux_newfstat_args *args)
158{
159 struct file *fp;
160 struct stat buf;
161 int error;
162
163#ifdef DEBUG
164 if (ldebug(newfstat))
165 printf(ARGS(newfstat, "%d, *"), args->fd);
166#endif
167
168 if ((error = fget(td, args->fd, &fp)) != 0)
169 return (error);
170
171 error = fo_stat(fp, &buf, td->td_ucred, td);
172 fdrop(fp, td);
173 if (!error)
174 error = newstat_copyout(&buf, args->buf);
175
176 return (error);
177}
178
179/* XXX - All fields of type l_int are defined as l_long on i386 */
180struct l_statfs {
181 l_int f_type;
182 l_int f_bsize;
183 l_int f_blocks;
184 l_int f_bfree;
185 l_int f_bavail;
186 l_int f_files;
187 l_int f_ffree;
188 l_fsid_t f_fsid;
189 l_int f_namelen;
190 l_int f_spare[6];
191};
192
193#define LINUX_CODA_SUPER_MAGIC 0x73757245L
194#define LINUX_EXT2_SUPER_MAGIC 0xEF53L
195#define LINUX_HPFS_SUPER_MAGIC 0xf995e849L
196#define LINUX_ISOFS_SUPER_MAGIC 0x9660L
197#define LINUX_MSDOS_SUPER_MAGIC 0x4d44L
198#define LINUX_NCP_SUPER_MAGIC 0x564cL
199#define LINUX_NFS_SUPER_MAGIC 0x6969L
200#define LINUX_NTFS_SUPER_MAGIC 0x5346544EL
201#define LINUX_PROC_SUPER_MAGIC 0x9fa0L
202#define LINUX_UFS_SUPER_MAGIC 0x00011954L /* XXX - UFS_MAGIC in Linux */
203
204static long
205bsd_to_linux_ftype(const char *fstypename)
206{
207 int i;
208 static struct {const char *bsd_name; long linux_type;} b2l_tbl[] = {
209 {"ufs", LINUX_UFS_SUPER_MAGIC},
210 {"cd9660", LINUX_ISOFS_SUPER_MAGIC},
211 {"nfs", LINUX_NFS_SUPER_MAGIC},
212 {"ext2fs", LINUX_EXT2_SUPER_MAGIC},
213 {"procfs", LINUX_PROC_SUPER_MAGIC},
214 {"msdosfs", LINUX_MSDOS_SUPER_MAGIC},
215 {"ntfs", LINUX_NTFS_SUPER_MAGIC},
216 {"nwfs", LINUX_NCP_SUPER_MAGIC},
217 {"hpfs", LINUX_HPFS_SUPER_MAGIC},
218 {"coda", LINUX_CODA_SUPER_MAGIC},
219 {NULL, 0L}};
220
221 for (i = 0; b2l_tbl[i].bsd_name != NULL; i++)
222 if (strcmp(b2l_tbl[i].bsd_name, fstypename) == 0)
223 return (b2l_tbl[i].linux_type);
224
225 return (0L);
226}
227
228int
229linux_statfs(struct thread *td, struct linux_statfs_args *args)
230{
231 struct mount *mp;
232 struct nameidata *ndp;
233 struct statfs *bsd_statfs;
234 struct nameidata nd;
235 struct l_statfs linux_statfs;
236 char *path;
237 int error;
238
239 LCONVPATHEXIST(td, args->path, &path);
240
241#ifdef DEBUG
242 if (ldebug(statfs))
243 printf(ARGS(statfs, "%s, *"), path);
244#endif
245 ndp = &nd;
246 NDINIT(ndp, LOOKUP, FOLLOW, UIO_SYSSPACE, path, td);
247 error = namei(ndp);
248 LFREEPATH(path);
249 if (error)
250 return error;
251 NDFREE(ndp, NDF_ONLY_PNBUF);
252 mp = ndp->ni_vp->v_mount;
253 bsd_statfs = &mp->mnt_stat;
254 vrele(ndp->ni_vp);
255#ifdef MAC
256 error = mac_check_mount_stat(td->td_ucred, mp);
257 if (error)
258 return (error);
259#endif
260 error = VFS_STATFS(mp, bsd_statfs, td);
261 if (error)
262 return error;
263 bsd_statfs->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
264 linux_statfs.f_type = bsd_to_linux_ftype(bsd_statfs->f_fstypename);
265 linux_statfs.f_bsize = bsd_statfs->f_bsize;
266 linux_statfs.f_blocks = bsd_statfs->f_blocks;
267 linux_statfs.f_bfree = bsd_statfs->f_bfree;
268 linux_statfs.f_bavail = bsd_statfs->f_bavail;
269 linux_statfs.f_ffree = bsd_statfs->f_ffree;
270 linux_statfs.f_files = bsd_statfs->f_files;
271 if (suser(td)) {
272 linux_statfs.f_fsid.val[0] = 0;
273 linux_statfs.f_fsid.val[1] = 0;
274 } else {
275 linux_statfs.f_fsid.val[0] = bsd_statfs->f_fsid.val[0];
276 linux_statfs.f_fsid.val[1] = bsd_statfs->f_fsid.val[1];
277 }
278 linux_statfs.f_namelen = MAXNAMLEN;
279 return copyout(&linux_statfs, args->buf, sizeof(linux_statfs));
280}
281
282int
283linux_fstatfs(struct thread *td, struct linux_fstatfs_args *args)
284{
285 struct file *fp;
286 struct mount *mp;
287 struct statfs *bsd_statfs;
288 struct l_statfs linux_statfs;
289 int error;
290
291#ifdef DEBUG
292 if (ldebug(fstatfs))
293 printf(ARGS(fstatfs, "%d, *"), args->fd);
294#endif
295 error = getvnode(td->td_proc->p_fd, args->fd, &fp);
296 if (error)
297 return error;
298 mp = fp->f_vnode->v_mount;
299#ifdef MAC
300 error = mac_check_mount_stat(td->td_ucred, mp);
301 if (error) {
302 fdrop(fp, td);
303 return (error);
304 }
305#endif
306 bsd_statfs = &mp->mnt_stat;
307 error = VFS_STATFS(mp, bsd_statfs, td);
308 if (error) {
309 fdrop(fp, td);
310 return error;
311 }
312 bsd_statfs->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
313 linux_statfs.f_type = bsd_to_linux_ftype(bsd_statfs->f_fstypename);
314 linux_statfs.f_bsize = bsd_statfs->f_bsize;
315 linux_statfs.f_blocks = bsd_statfs->f_blocks;
316 linux_statfs.f_bfree = bsd_statfs->f_bfree;
317 linux_statfs.f_bavail = bsd_statfs->f_bavail;
318 linux_statfs.f_ffree = bsd_statfs->f_ffree;
319 linux_statfs.f_files = bsd_statfs->f_files;
320 if (suser(td)) {
321 linux_statfs.f_fsid.val[0] = 0;
322 linux_statfs.f_fsid.val[1] = 0;
323 } else {
324 linux_statfs.f_fsid.val[0] = bsd_statfs->f_fsid.val[0];
325 linux_statfs.f_fsid.val[1] = bsd_statfs->f_fsid.val[1];
326 }
327 linux_statfs.f_namelen = MAXNAMLEN;
328 error = copyout(&linux_statfs, args->buf, sizeof(linux_statfs));
329 fdrop(fp, td);
330 return error;
331}
332
333struct l_ustat
334{
335 l_daddr_t f_tfree;
336 l_ino_t f_tinode;
337 char f_fname[6];
338 char f_fpack[6];
339};
340
341int
342linux_ustat(struct thread *td, struct linux_ustat_args *args)
343{
344 struct l_ustat lu;
345 struct cdev *dev;
346 struct vnode *vp;
347 struct statfs *stat;
348 int error;
349
350#ifdef DEBUG
351 if (ldebug(ustat))
352 printf(ARGS(ustat, "%d, *"), args->dev);
353#endif
354
355 /*
356 * lu.f_fname and lu.f_fpack are not used. They are always zeroed.
357 * lu.f_tinode and lu.f_tfree are set from the device's super block.
358 */
359 bzero(&lu, sizeof(lu));
360
361 /*
362 * XXX - Don't return an error if we can't find a vnode for the
363 * device. Our struct cdev *is 32-bits whereas Linux only has a 16-bits
364 * struct cdev *. The struct cdev *that is used now may as well be a truncated
365 * struct cdev *returned from previous syscalls. Just return a bzeroed
366 * ustat in that case.
367 */
|
418 cdevsw = devsw(dev);
419 if (cdevsw != NULL && (cdevsw->d_flags & D_DISK)) {
420 lbuf.st_mode &= ~S_IFMT;
421 lbuf.st_mode |= S_IFBLK;
422
423 /* XXX this may not be quite right */
424 /* Map major number to 0 */
425 lbuf.st_dev = uminor(buf->st_dev) & 0xf;
426 lbuf.st_rdev = buf->st_rdev & 0xff;
427 }
428 }
429
430 /*
431 * The __st_ino field makes all the difference. In the Linux kernel
432 * it is conditionally compiled based on STAT64_HAS_BROKEN_ST_INO,
433 * but without the assignment to __st_ino the runtime linker refuses
434 * to mmap(2) any shared libraries. I guess it's broken alright :-)
435 */
436 lbuf.__st_ino = buf->st_ino;
437
438 return (copyout(&lbuf, ubuf, sizeof(lbuf)));
439}
440
441int
442linux_stat64(struct thread *td, struct linux_stat64_args *args)
443{
444 struct stat buf;
445 struct nameidata nd;
446 int error;
447 char *filename;
448
449 LCONVPATHEXIST(td, args->filename, &filename);
450
451#ifdef DEBUG
452 if (ldebug(stat64))
453 printf(ARGS(stat64, "%s, *"), filename);
454#endif
455
456 NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, filename,
457 td);
458 error = namei(&nd);
459 LFREEPATH(filename);
460 if (error)
461 return (error);
462 NDFREE(&nd, NDF_ONLY_PNBUF);
463
464 error = vn_stat(nd.ni_vp, &buf, td->td_ucred, NOCRED, td);
465 vput(nd.ni_vp);
466 if (error)
467 return (error);
468
469 return (stat64_copyout(&buf, args->statbuf));
470}
471
472int
473linux_lstat64(struct thread *td, struct linux_lstat64_args *args)
474{
475 int error;
476 struct stat sb;
477 struct nameidata nd;
478 char *filename;
479
480 LCONVPATHEXIST(td, args->filename, &filename);
481
482#ifdef DEBUG
483 if (ldebug(lstat64))
484 printf(ARGS(lstat64, "%s, *"), args->filename);
485#endif
486
487 NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, filename,
488 td);
489 error = namei(&nd);
490 LFREEPATH(filename);
491 if (error)
492 return (error);
493 NDFREE(&nd, NDF_ONLY_PNBUF);
494
495 error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
496 vput(nd.ni_vp);
497 if (error)
498 return (error);
499
500 return (stat64_copyout(&sb, args->statbuf));
501}
502
503int
504linux_fstat64(struct thread *td, struct linux_fstat64_args *args)
505{
506 struct filedesc *fdp;
507 struct file *fp;
508 struct stat buf;
509 int error;
510
511#ifdef DEBUG
512 if (ldebug(fstat64))
513 printf(ARGS(fstat64, "%d, *"), args->fd);
514#endif
515
516 fdp = td->td_proc->p_fd;
517 if ((unsigned)args->fd >= fdp->fd_nfiles ||
518 (fp = fdp->fd_ofiles[args->fd]) == NULL)
519 return (EBADF);
520
521 error = fo_stat(fp, &buf, td->td_ucred, td);
522 if (!error)
523 error = stat64_copyout(&buf, args->statbuf);
524
525 return (error);
526}
527
528#endif /* __i386__ */
| 418 cdevsw = devsw(dev);
419 if (cdevsw != NULL && (cdevsw->d_flags & D_DISK)) {
420 lbuf.st_mode &= ~S_IFMT;
421 lbuf.st_mode |= S_IFBLK;
422
423 /* XXX this may not be quite right */
424 /* Map major number to 0 */
425 lbuf.st_dev = uminor(buf->st_dev) & 0xf;
426 lbuf.st_rdev = buf->st_rdev & 0xff;
427 }
428 }
429
430 /*
431 * The __st_ino field makes all the difference. In the Linux kernel
432 * it is conditionally compiled based on STAT64_HAS_BROKEN_ST_INO,
433 * but without the assignment to __st_ino the runtime linker refuses
434 * to mmap(2) any shared libraries. I guess it's broken alright :-)
435 */
436 lbuf.__st_ino = buf->st_ino;
437
438 return (copyout(&lbuf, ubuf, sizeof(lbuf)));
439}
440
441int
442linux_stat64(struct thread *td, struct linux_stat64_args *args)
443{
444 struct stat buf;
445 struct nameidata nd;
446 int error;
447 char *filename;
448
449 LCONVPATHEXIST(td, args->filename, &filename);
450
451#ifdef DEBUG
452 if (ldebug(stat64))
453 printf(ARGS(stat64, "%s, *"), filename);
454#endif
455
456 NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, filename,
457 td);
458 error = namei(&nd);
459 LFREEPATH(filename);
460 if (error)
461 return (error);
462 NDFREE(&nd, NDF_ONLY_PNBUF);
463
464 error = vn_stat(nd.ni_vp, &buf, td->td_ucred, NOCRED, td);
465 vput(nd.ni_vp);
466 if (error)
467 return (error);
468
469 return (stat64_copyout(&buf, args->statbuf));
470}
471
472int
473linux_lstat64(struct thread *td, struct linux_lstat64_args *args)
474{
475 int error;
476 struct stat sb;
477 struct nameidata nd;
478 char *filename;
479
480 LCONVPATHEXIST(td, args->filename, &filename);
481
482#ifdef DEBUG
483 if (ldebug(lstat64))
484 printf(ARGS(lstat64, "%s, *"), args->filename);
485#endif
486
487 NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, filename,
488 td);
489 error = namei(&nd);
490 LFREEPATH(filename);
491 if (error)
492 return (error);
493 NDFREE(&nd, NDF_ONLY_PNBUF);
494
495 error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
496 vput(nd.ni_vp);
497 if (error)
498 return (error);
499
500 return (stat64_copyout(&sb, args->statbuf));
501}
502
503int
504linux_fstat64(struct thread *td, struct linux_fstat64_args *args)
505{
506 struct filedesc *fdp;
507 struct file *fp;
508 struct stat buf;
509 int error;
510
511#ifdef DEBUG
512 if (ldebug(fstat64))
513 printf(ARGS(fstat64, "%d, *"), args->fd);
514#endif
515
516 fdp = td->td_proc->p_fd;
517 if ((unsigned)args->fd >= fdp->fd_nfiles ||
518 (fp = fdp->fd_ofiles[args->fd]) == NULL)
519 return (EBADF);
520
521 error = fo_stat(fp, &buf, td->td_ucred, td);
522 if (!error)
523 error = stat64_copyout(&buf, args->statbuf);
524
525 return (error);
526}
527
528#endif /* __i386__ */
|