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
--- 11 unchanged lines hidden (view full) ---
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 * $FreeBSD: head/sys/compat/linux/linux_file.c 82518 2001-08-29 19:05:27Z gallatin $
29 */
30
31#include "opt_compat.h"
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/conf.h>
36#include <sys/dirent.h>
--- 107 unchanged lines hidden (view full) ---
144 PROC_UNLOCK(p);
145#ifdef DEBUG
146 if (ldebug(open))
147 printf(LMSG("open returns error %d"), error);
148#endif
149 return error;
150}
151
152struct linux_flock {
153 short l_type;
154 short l_whence;
155 linux_off_t l_start;
156 linux_off_t l_len;
157 linux_pid_t l_pid;
158};
159
160static void
161linux_to_bsd_flock(struct linux_flock *linux_flock, struct flock *bsd_flock)
162{
163 switch (linux_flock->l_type) {
164 case LINUX_F_RDLCK:
165 bsd_flock->l_type = F_RDLCK;
166 break;
167 case LINUX_F_WRLCK:
168 bsd_flock->l_type = F_WRLCK;
169 break;
170 case LINUX_F_UNLCK:
171 bsd_flock->l_type = F_UNLCK;
172 break;
173 default:
174 bsd_flock->l_type = -1;
175 break;
176 }
177 bsd_flock->l_whence = linux_flock->l_whence;
178 bsd_flock->l_start = (off_t)linux_flock->l_start;
179 bsd_flock->l_len = (off_t)linux_flock->l_len;
180 bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
181}
182
183static void
184bsd_to_linux_flock(struct flock *bsd_flock, struct linux_flock *linux_flock)
185{
186 switch (bsd_flock->l_type) {
187 case F_RDLCK:
188 linux_flock->l_type = LINUX_F_RDLCK;
189 break;
190 case F_WRLCK:
191 linux_flock->l_type = LINUX_F_WRLCK;
192 break;
193 case F_UNLCK:
194 linux_flock->l_type = LINUX_F_UNLCK;
195 break;
196 }
197 linux_flock->l_whence = bsd_flock->l_whence;
198 linux_flock->l_start = (linux_off_t)bsd_flock->l_start;
199 linux_flock->l_len = (linux_off_t)bsd_flock->l_len;
200 linux_flock->l_pid = (linux_pid_t)bsd_flock->l_pid;
201}
202
203int
204linux_fcntl(struct proc *p, struct linux_fcntl_args *args)
205{
206 int error, result;
207 struct fcntl_args /* {
208 int fd;
209 int cmd;
210 long arg;
211 } */ fcntl_args;
212 struct linux_flock linux_flock;
213 struct flock *bsd_flock;
214 struct filedesc *fdp;
215 struct file *fp;
216 caddr_t sg;
217
218 sg = stackgap_init();
219 bsd_flock = (struct flock *)stackgap_alloc(&sg, sizeof(struct flock));
220
221#ifdef DEBUG
222 if (ldebug(fcntl))
223 printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd);
224#endif
225 fcntl_args.fd = args->fd;
226
227 switch (args->cmd) {
228 case LINUX_F_DUPFD:
229 fcntl_args.cmd = F_DUPFD;
230 fcntl_args.arg = args->arg;
231 return fcntl(p, &fcntl_args);
232
233 case LINUX_F_GETFD:
234 fcntl_args.cmd = F_GETFD;
235 return fcntl(p, &fcntl_args);
236
237 case LINUX_F_SETFD:
238 fcntl_args.cmd = F_SETFD;
239 fcntl_args.arg = args->arg;
240 return fcntl(p, &fcntl_args);
241
242 case LINUX_F_GETFL:
243 fcntl_args.cmd = F_GETFL;
244 error = fcntl(p, &fcntl_args);
245 result = p->p_retval[0];
246 p->p_retval[0] = 0;
247 if (result & O_RDONLY) p->p_retval[0] |= LINUX_O_RDONLY;
248 if (result & O_WRONLY) p->p_retval[0] |= LINUX_O_WRONLY;
249 if (result & O_RDWR) p->p_retval[0] |= LINUX_O_RDWR;
250 if (result & O_NDELAY) p->p_retval[0] |= LINUX_O_NONBLOCK;
251 if (result & O_APPEND) p->p_retval[0] |= LINUX_O_APPEND;
252 if (result & O_FSYNC) p->p_retval[0] |= LINUX_O_SYNC;
253 if (result & O_ASYNC) p->p_retval[0] |= LINUX_FASYNC;
254 return error;
255
256 case LINUX_F_SETFL:
257 fcntl_args.arg = 0;
258 if (args->arg & LINUX_O_NDELAY) fcntl_args.arg |= O_NONBLOCK;
259 if (args->arg & LINUX_O_APPEND) fcntl_args.arg |= O_APPEND;
260 if (args->arg & LINUX_O_SYNC) fcntl_args.arg |= O_FSYNC;
261 if (args->arg & LINUX_FASYNC) fcntl_args.arg |= O_ASYNC;
262 fcntl_args.cmd = F_SETFL;
263 return fcntl(p, &fcntl_args);
264
265 case LINUX_F_GETLK:
266 if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock,
267 sizeof(struct linux_flock))))
268 return error;
269 linux_to_bsd_flock(&linux_flock, bsd_flock);
270 fcntl_args.cmd = F_GETLK;
271 fcntl_args.arg = (long)bsd_flock;
272 error = fcntl(p, &fcntl_args);
273 if (error)
274 return error;
275 bsd_to_linux_flock(bsd_flock, &linux_flock);
276 return copyout((caddr_t)&linux_flock, (caddr_t)args->arg,
277 sizeof(struct linux_flock));
278
279 case LINUX_F_SETLK:
280 if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock,
281 sizeof(struct linux_flock))))
282 return error;
283 linux_to_bsd_flock(&linux_flock, bsd_flock);
284 fcntl_args.cmd = F_SETLK;
285 fcntl_args.arg = (long)bsd_flock;
286 return fcntl(p, &fcntl_args);
287
288 case LINUX_F_SETLKW:
289 if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock,
290 sizeof(struct linux_flock))))
291 return error;
292 linux_to_bsd_flock(&linux_flock, bsd_flock);
293 fcntl_args.cmd = F_SETLKW;
294 fcntl_args.arg = (long)bsd_flock;
295 return fcntl(p, &fcntl_args);
296
297 case LINUX_F_GETOWN:
298 fcntl_args.cmd = F_GETOWN;
299 return fcntl(p, &fcntl_args);
300
301 case LINUX_F_SETOWN:
302 /*
303 * XXX some Linux applications depend on F_SETOWN having no
304 * significant effect for pipes (SIGIO is not delivered for
305 * pipes under Linux-2.2.35 at least).
306 */
307 fdp = p->p_fd;
308 if ((u_int)args->fd >= fdp->fd_nfiles ||
309 (fp = fdp->fd_ofiles[args->fd]) == NULL)
310 return EBADF;
311 if (fp->f_type == DTYPE_PIPE)
312 return EINVAL;
313
314 fcntl_args.cmd = F_SETOWN;
315 fcntl_args.arg = args->arg;
316 return fcntl(p, &fcntl_args);
317 }
318 return EINVAL;
319}
320
321int
322linux_lseek(struct proc *p, struct linux_lseek_args *args)
323{
324
325 struct lseek_args /* {
326 int fd;
327 int pad;
328 off_t offset;
329 int whence;
330 } */ tmp_args;
331 int error;
332
333#ifdef DEBUG
334 if (ldebug(lseek))
335 printf(ARGS(lseek, "%d, %ld, %d"),
336 args->fdes, args->off, args->whence);
337#endif
338 tmp_args.fd = args->fdes;
339 tmp_args.offset = (off_t)args->off;
340 tmp_args.whence = args->whence;
341 error = lseek(p, &tmp_args);
342 return error;
343}
344
--- 22 unchanged lines hidden (view full) ---
367 if ((error = copyout(p->p_retval, (caddr_t)args->res, sizeof (off_t))))
368 return error;
369
370 p->p_retval[0] = 0;
371 return 0;
372}
373#endif /*!__alpha__*/
374
375
376struct linux_dirent {
377 long dino;
378 linux_off_t doff;
379 unsigned short dreclen;
380 char dname[LINUX_NAME_MAX + 1];
381};
382
383#define LINUX_RECLEN(de,namlen) \
384 ALIGN((((char *)&(de)->dname - (char *)de) + (namlen) + 1))
385
386#ifndef __alpha__
387int
388linux_readdir(struct proc *p, struct linux_readdir_args *args)
389{
390 struct linux_getdents_args lda;
391
392 lda.fd = args->fd;
393 lda.dent = args->dent;
394 lda.count = 1;
395 return linux_getdents(p, &lda);
396}
397#endif /*!__alpha__*/
398
399int
400linux_getdents(struct proc *p, struct linux_getdents_args *args)
401{
402 register struct dirent *bdp;
403 struct vnode *vp;
404 caddr_t inp, buf; /* BSD-format */
405 int len, reclen; /* BSD-format */
406 caddr_t outp; /* Linux-format */
407 int resid, linuxreclen=0; /* Linux-format */
408 struct file *fp;
409 struct uio auio;
410 struct iovec aiov;
411 struct vattr va;
412 off_t off;
413 struct linux_dirent linux_dirent;
414 int buflen, error, eofflag, nbytes, justone;
415 u_long *cookies = NULL, *cookiep;
416 int ncookies;
417
418#ifdef DEBUG
419 if (ldebug(getdents))
420 printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count);
421#endif
422 if ((error = getvnode(p->p_fd, args->fd, &fp)) != 0) {
423 return (error);
424 }
425
426 if ((fp->f_flag & FREAD) == 0)
427 return (EBADF);
428
429 vp = (struct vnode *) fp->f_data;
430
431 if (vp->v_type != VDIR)
432 return (EINVAL);
433
434 if ((error = VOP_GETATTR(vp, &va, p->p_ucred, p))) {
435 return error;
436 }
437
438 nbytes = args->count;
439 if (nbytes == 1) {
440 nbytes = sizeof (struct linux_dirent);
441 justone = 1;
442 }
443 else
444 justone = 0;
445
446 off = fp->f_offset;
447#define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
448 buflen = max(DIRBLKSIZ, nbytes);
449 buflen = min(buflen, MAXBSIZE);
450 buf = malloc(buflen, M_TEMP, M_WAITOK);
451 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
452again:
453 aiov.iov_base = buf;
454 aiov.iov_len = buflen;
455 auio.uio_iov = &aiov;
456 auio.uio_iovcnt = 1;
457 auio.uio_rw = UIO_READ;
458 auio.uio_segflg = UIO_SYSSPACE;
459 auio.uio_procp = p;
460 auio.uio_resid = buflen;
461 auio.uio_offset = off;
462
463 if (cookies) {
464 free(cookies, M_TEMP);
465 cookies = NULL;
466 }
467
468 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, &cookies);
469 if (error) {
470 goto out;
471 }
472
473 inp = buf;
474 outp = (caddr_t) args->dent;
475 resid = nbytes;
476 if ((len = buflen - auio.uio_resid) <= 0) {
477 goto eof;
478 }
479
480 cookiep = cookies;
481
482 if (cookies) {
483 /*
484 * When using cookies, the vfs has the option of reading from
485 * a different offset than that supplied (UFS truncates the
486 * offset to a block boundary to make sure that it never reads
487 * partway through a directory entry, even if the directory
488 * has been compacted).
489 */
490 while (len > 0 && ncookies > 0 && *cookiep <= off) {
491 bdp = (struct dirent *) inp;
492 len -= bdp->d_reclen;
493 inp += bdp->d_reclen;
494 cookiep++;
495 ncookies--;
496 }
497 }
498
499 while (len > 0) {
500 if (cookiep && ncookies == 0)
501 break;
502 bdp = (struct dirent *) inp;
503 reclen = bdp->d_reclen;
504 if (reclen & 3) {
505 printf("linux_readdir: reclen=%d\n", reclen);
506 error = EFAULT;
507 goto out;
508 }
509
510 if (bdp->d_fileno == 0) {
511 inp += reclen;
512 if (cookiep) {
513 off = *cookiep++;
514 ncookies--;
515 } else
516 off += reclen;
517 len -= reclen;
518 continue;
519 }
520 linuxreclen = LINUX_RECLEN(&linux_dirent, bdp->d_namlen);
521 if (reclen > len || resid < linuxreclen) {
522 outp++;
523 break;
524 }
525 linux_dirent.dino = (long) bdp->d_fileno;
526 if (justone) {
527 /*
528 * old linux-style readdir usage.
529 */
530 linux_dirent.doff = (linux_off_t) linuxreclen;
531 linux_dirent.dreclen = (u_short) bdp->d_namlen;
532 } else {
533 if (cookiep)
534 linux_dirent.doff = (linux_off_t)*cookiep;
535 else
536 linux_dirent.doff = (linux_off_t)(off + reclen);
537 linux_dirent.dreclen = (u_short) linuxreclen;
538 }
539 strcpy(linux_dirent.dname, bdp->d_name);
540 if ((error = copyout((caddr_t)&linux_dirent, outp, linuxreclen))) {
541 goto out;
542 }
543 inp += reclen;
544 if (cookiep) {
545 off = *cookiep++;
546 ncookies--;
547 } else
548 off += reclen;
549 outp += linuxreclen;
550 resid -= linuxreclen;
551 len -= reclen;
552 if (justone)
553 break;
554 }
555
556 if (outp == (caddr_t) args->dent)
557 goto again;
558 fp->f_offset = off;
559
560 if (justone)
561 nbytes = resid + linuxreclen;
562
563eof:
564 p->p_retval[0] = nbytes - resid;
565out:
566 if (cookies)
567 free(cookies, M_TEMP);
568 VOP_UNLOCK(vp, 0, p);
569 free(buf, M_TEMP);
570 return error;
571}
572
573/*
574 * These exist mainly for hooks for doing /compat/linux translation.
575 */
576
577int
578linux_access(struct proc *p, struct linux_access_args *args)
579{
580 struct access_args bsd;
--- 63 unchanged lines hidden (view full) ---
644#endif
645 bsd.path = args->path;
646 bsd.mode = args->mode;
647
648 return chmod(p, &bsd);
649}
650
651int
652linux_chown(struct proc *p, struct linux_chown_args *args)
653{
654 struct chown_args bsd;
655 caddr_t sg;
656
657 sg = stackgap_init();
658 CHECKALTEXIST(p, &sg, args->path);
659
660#ifdef DEBUG
661 if (ldebug(chown))
662 printf(ARGS(chown, "%s, %d, %d"),
663 args->path, args->uid, args->gid);
664#endif
665 bsd.path = args->path;
666 /* XXX size casts here */
667 bsd.uid = args->uid;
668 bsd.gid = args->gid;
669
670 return chown(p, &bsd);
671}
672
673int
674linux_lchown(struct proc *p, struct linux_lchown_args *args)
675{
676 struct lchown_args bsd;
677 caddr_t sg;
678
679 sg = stackgap_init();
680 CHECKALTEXIST(p, &sg, args->path);
681
682#ifdef DEBUG
683 if (ldebug(lchown))
684 printf(ARGS(lchown, "%s, %d, %d"),
685 args->path, args->uid, args->gid);
686#endif
687 bsd.path = args->path;
688 /* XXX size casts here */
689 bsd.uid = args->uid;
690 bsd.gid = args->gid;
691
692 return lchown(p, &bsd);
693}
694
695int
696linux_mkdir(struct proc *p, struct linux_mkdir_args *args)
697{
698 struct mkdir_args bsd;
699 caddr_t sg;
700
701 sg = stackgap_init();
702 CHECKALTCREAT(p, &sg, args->path);
703
--- 92 unchanged lines hidden (view full) ---
796 struct truncate_args bsd;
797 caddr_t sg;
798
799 sg = stackgap_init();
800 CHECKALTEXIST(p, &sg, args->path);
801
802#ifdef DEBUG
803 if (ldebug(truncate))
804 printf(ARGS(truncate, "%s, %ld"), args->path, args->length);
805#endif
806 bsd.path = args->path;
807 bsd.length = args->length;
808
809 return truncate(p, &bsd);
810}
811
812int
--- 119 unchanged lines hidden (view full) ---
932 if (args->rwflag & LINUX_MS_REMOUNT)
933 fsflags |= MNT_UPDATE;
934 }
935
936 return (vfs_mount(p, fstype, mntonname, fsflags, fsdata));
937}
938
939int
940linux_umount(struct proc *p, struct linux_umount_args *args)
941{
942 struct linux_umount2_args args2;
943
944 args2.path = args->path;
945 args2.flags = 0;
946 return (linux_umount2(p, &args2));
947}
948
949int
950linux_umount2(struct proc *p, struct linux_umount2_args *args)
951{
952 struct unmount_args bsd;
953
954 bsd.path = args->path;
955 bsd.flags = args->flags; /* XXX correct? */
956 return (unmount(p, &bsd));
957}
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
--- 11 unchanged lines hidden (view full) ---
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 * $FreeBSD: head/sys/compat/linux/linux_file.c 82518 2001-08-29 19:05:27Z gallatin $
29 */
30
31#include "opt_compat.h"
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/conf.h>
36#include <sys/dirent.h>
--- 107 unchanged lines hidden (view full) ---
144 PROC_UNLOCK(p);
145#ifdef DEBUG
146 if (ldebug(open))
147 printf(LMSG("open returns error %d"), error);
148#endif
149 return error;
150}
151
152struct linux_flock {
153 short l_type;
154 short l_whence;
155 linux_off_t l_start;
156 linux_off_t l_len;
157 linux_pid_t l_pid;
158};
159
160static void
161linux_to_bsd_flock(struct linux_flock *linux_flock, struct flock *bsd_flock)
162{
163 switch (linux_flock->l_type) {
164 case LINUX_F_RDLCK:
165 bsd_flock->l_type = F_RDLCK;
166 break;
167 case LINUX_F_WRLCK:
168 bsd_flock->l_type = F_WRLCK;
169 break;
170 case LINUX_F_UNLCK:
171 bsd_flock->l_type = F_UNLCK;
172 break;
173 default:
174 bsd_flock->l_type = -1;
175 break;
176 }
177 bsd_flock->l_whence = linux_flock->l_whence;
178 bsd_flock->l_start = (off_t)linux_flock->l_start;
179 bsd_flock->l_len = (off_t)linux_flock->l_len;
180 bsd_flock->l_pid = (pid_t)linux_flock->l_pid;
181}
182
183static void
184bsd_to_linux_flock(struct flock *bsd_flock, struct linux_flock *linux_flock)
185{
186 switch (bsd_flock->l_type) {
187 case F_RDLCK:
188 linux_flock->l_type = LINUX_F_RDLCK;
189 break;
190 case F_WRLCK:
191 linux_flock->l_type = LINUX_F_WRLCK;
192 break;
193 case F_UNLCK:
194 linux_flock->l_type = LINUX_F_UNLCK;
195 break;
196 }
197 linux_flock->l_whence = bsd_flock->l_whence;
198 linux_flock->l_start = (linux_off_t)bsd_flock->l_start;
199 linux_flock->l_len = (linux_off_t)bsd_flock->l_len;
200 linux_flock->l_pid = (linux_pid_t)bsd_flock->l_pid;
201}
202
203int
204linux_fcntl(struct proc *p, struct linux_fcntl_args *args)
205{
206 int error, result;
207 struct fcntl_args /* {
208 int fd;
209 int cmd;
210 long arg;
211 } */ fcntl_args;
212 struct linux_flock linux_flock;
213 struct flock *bsd_flock;
214 struct filedesc *fdp;
215 struct file *fp;
216 caddr_t sg;
217
218 sg = stackgap_init();
219 bsd_flock = (struct flock *)stackgap_alloc(&sg, sizeof(struct flock));
220
221#ifdef DEBUG
222 if (ldebug(fcntl))
223 printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd);
224#endif
225 fcntl_args.fd = args->fd;
226
227 switch (args->cmd) {
228 case LINUX_F_DUPFD:
229 fcntl_args.cmd = F_DUPFD;
230 fcntl_args.arg = args->arg;
231 return fcntl(p, &fcntl_args);
232
233 case LINUX_F_GETFD:
234 fcntl_args.cmd = F_GETFD;
235 return fcntl(p, &fcntl_args);
236
237 case LINUX_F_SETFD:
238 fcntl_args.cmd = F_SETFD;
239 fcntl_args.arg = args->arg;
240 return fcntl(p, &fcntl_args);
241
242 case LINUX_F_GETFL:
243 fcntl_args.cmd = F_GETFL;
244 error = fcntl(p, &fcntl_args);
245 result = p->p_retval[0];
246 p->p_retval[0] = 0;
247 if (result & O_RDONLY) p->p_retval[0] |= LINUX_O_RDONLY;
248 if (result & O_WRONLY) p->p_retval[0] |= LINUX_O_WRONLY;
249 if (result & O_RDWR) p->p_retval[0] |= LINUX_O_RDWR;
250 if (result & O_NDELAY) p->p_retval[0] |= LINUX_O_NONBLOCK;
251 if (result & O_APPEND) p->p_retval[0] |= LINUX_O_APPEND;
252 if (result & O_FSYNC) p->p_retval[0] |= LINUX_O_SYNC;
253 if (result & O_ASYNC) p->p_retval[0] |= LINUX_FASYNC;
254 return error;
255
256 case LINUX_F_SETFL:
257 fcntl_args.arg = 0;
258 if (args->arg & LINUX_O_NDELAY) fcntl_args.arg |= O_NONBLOCK;
259 if (args->arg & LINUX_O_APPEND) fcntl_args.arg |= O_APPEND;
260 if (args->arg & LINUX_O_SYNC) fcntl_args.arg |= O_FSYNC;
261 if (args->arg & LINUX_FASYNC) fcntl_args.arg |= O_ASYNC;
262 fcntl_args.cmd = F_SETFL;
263 return fcntl(p, &fcntl_args);
264
265 case LINUX_F_GETLK:
266 if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock,
267 sizeof(struct linux_flock))))
268 return error;
269 linux_to_bsd_flock(&linux_flock, bsd_flock);
270 fcntl_args.cmd = F_GETLK;
271 fcntl_args.arg = (long)bsd_flock;
272 error = fcntl(p, &fcntl_args);
273 if (error)
274 return error;
275 bsd_to_linux_flock(bsd_flock, &linux_flock);
276 return copyout((caddr_t)&linux_flock, (caddr_t)args->arg,
277 sizeof(struct linux_flock));
278
279 case LINUX_F_SETLK:
280 if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock,
281 sizeof(struct linux_flock))))
282 return error;
283 linux_to_bsd_flock(&linux_flock, bsd_flock);
284 fcntl_args.cmd = F_SETLK;
285 fcntl_args.arg = (long)bsd_flock;
286 return fcntl(p, &fcntl_args);
287
288 case LINUX_F_SETLKW:
289 if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock,
290 sizeof(struct linux_flock))))
291 return error;
292 linux_to_bsd_flock(&linux_flock, bsd_flock);
293 fcntl_args.cmd = F_SETLKW;
294 fcntl_args.arg = (long)bsd_flock;
295 return fcntl(p, &fcntl_args);
296
297 case LINUX_F_GETOWN:
298 fcntl_args.cmd = F_GETOWN;
299 return fcntl(p, &fcntl_args);
300
301 case LINUX_F_SETOWN:
302 /*
303 * XXX some Linux applications depend on F_SETOWN having no
304 * significant effect for pipes (SIGIO is not delivered for
305 * pipes under Linux-2.2.35 at least).
306 */
307 fdp = p->p_fd;
308 if ((u_int)args->fd >= fdp->fd_nfiles ||
309 (fp = fdp->fd_ofiles[args->fd]) == NULL)
310 return EBADF;
311 if (fp->f_type == DTYPE_PIPE)
312 return EINVAL;
313
314 fcntl_args.cmd = F_SETOWN;
315 fcntl_args.arg = args->arg;
316 return fcntl(p, &fcntl_args);
317 }
318 return EINVAL;
319}
320
321int
322linux_lseek(struct proc *p, struct linux_lseek_args *args)
323{
324
325 struct lseek_args /* {
326 int fd;
327 int pad;
328 off_t offset;
329 int whence;
330 } */ tmp_args;
331 int error;
332
333#ifdef DEBUG
334 if (ldebug(lseek))
335 printf(ARGS(lseek, "%d, %ld, %d"),
336 args->fdes, args->off, args->whence);
337#endif
338 tmp_args.fd = args->fdes;
339 tmp_args.offset = (off_t)args->off;
340 tmp_args.whence = args->whence;
341 error = lseek(p, &tmp_args);
342 return error;
343}
344
--- 22 unchanged lines hidden (view full) ---
367 if ((error = copyout(p->p_retval, (caddr_t)args->res, sizeof (off_t))))
368 return error;
369
370 p->p_retval[0] = 0;
371 return 0;
372}
373#endif /*!__alpha__*/
374
375
376struct linux_dirent {
377 long dino;
378 linux_off_t doff;
379 unsigned short dreclen;
380 char dname[LINUX_NAME_MAX + 1];
381};
382
383#define LINUX_RECLEN(de,namlen) \
384 ALIGN((((char *)&(de)->dname - (char *)de) + (namlen) + 1))
385
386#ifndef __alpha__
387int
388linux_readdir(struct proc *p, struct linux_readdir_args *args)
389{
390 struct linux_getdents_args lda;
391
392 lda.fd = args->fd;
393 lda.dent = args->dent;
394 lda.count = 1;
395 return linux_getdents(p, &lda);
396}
397#endif /*!__alpha__*/
398
399int
400linux_getdents(struct proc *p, struct linux_getdents_args *args)
401{
402 register struct dirent *bdp;
403 struct vnode *vp;
404 caddr_t inp, buf; /* BSD-format */
405 int len, reclen; /* BSD-format */
406 caddr_t outp; /* Linux-format */
407 int resid, linuxreclen=0; /* Linux-format */
408 struct file *fp;
409 struct uio auio;
410 struct iovec aiov;
411 struct vattr va;
412 off_t off;
413 struct linux_dirent linux_dirent;
414 int buflen, error, eofflag, nbytes, justone;
415 u_long *cookies = NULL, *cookiep;
416 int ncookies;
417
418#ifdef DEBUG
419 if (ldebug(getdents))
420 printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count);
421#endif
422 if ((error = getvnode(p->p_fd, args->fd, &fp)) != 0) {
423 return (error);
424 }
425
426 if ((fp->f_flag & FREAD) == 0)
427 return (EBADF);
428
429 vp = (struct vnode *) fp->f_data;
430
431 if (vp->v_type != VDIR)
432 return (EINVAL);
433
434 if ((error = VOP_GETATTR(vp, &va, p->p_ucred, p))) {
435 return error;
436 }
437
438 nbytes = args->count;
439 if (nbytes == 1) {
440 nbytes = sizeof (struct linux_dirent);
441 justone = 1;
442 }
443 else
444 justone = 0;
445
446 off = fp->f_offset;
447#define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
448 buflen = max(DIRBLKSIZ, nbytes);
449 buflen = min(buflen, MAXBSIZE);
450 buf = malloc(buflen, M_TEMP, M_WAITOK);
451 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
452again:
453 aiov.iov_base = buf;
454 aiov.iov_len = buflen;
455 auio.uio_iov = &aiov;
456 auio.uio_iovcnt = 1;
457 auio.uio_rw = UIO_READ;
458 auio.uio_segflg = UIO_SYSSPACE;
459 auio.uio_procp = p;
460 auio.uio_resid = buflen;
461 auio.uio_offset = off;
462
463 if (cookies) {
464 free(cookies, M_TEMP);
465 cookies = NULL;
466 }
467
468 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, &cookies);
469 if (error) {
470 goto out;
471 }
472
473 inp = buf;
474 outp = (caddr_t) args->dent;
475 resid = nbytes;
476 if ((len = buflen - auio.uio_resid) <= 0) {
477 goto eof;
478 }
479
480 cookiep = cookies;
481
482 if (cookies) {
483 /*
484 * When using cookies, the vfs has the option of reading from
485 * a different offset than that supplied (UFS truncates the
486 * offset to a block boundary to make sure that it never reads
487 * partway through a directory entry, even if the directory
488 * has been compacted).
489 */
490 while (len > 0 && ncookies > 0 && *cookiep <= off) {
491 bdp = (struct dirent *) inp;
492 len -= bdp->d_reclen;
493 inp += bdp->d_reclen;
494 cookiep++;
495 ncookies--;
496 }
497 }
498
499 while (len > 0) {
500 if (cookiep && ncookies == 0)
501 break;
502 bdp = (struct dirent *) inp;
503 reclen = bdp->d_reclen;
504 if (reclen & 3) {
505 printf("linux_readdir: reclen=%d\n", reclen);
506 error = EFAULT;
507 goto out;
508 }
509
510 if (bdp->d_fileno == 0) {
511 inp += reclen;
512 if (cookiep) {
513 off = *cookiep++;
514 ncookies--;
515 } else
516 off += reclen;
517 len -= reclen;
518 continue;
519 }
520 linuxreclen = LINUX_RECLEN(&linux_dirent, bdp->d_namlen);
521 if (reclen > len || resid < linuxreclen) {
522 outp++;
523 break;
524 }
525 linux_dirent.dino = (long) bdp->d_fileno;
526 if (justone) {
527 /*
528 * old linux-style readdir usage.
529 */
530 linux_dirent.doff = (linux_off_t) linuxreclen;
531 linux_dirent.dreclen = (u_short) bdp->d_namlen;
532 } else {
533 if (cookiep)
534 linux_dirent.doff = (linux_off_t)*cookiep;
535 else
536 linux_dirent.doff = (linux_off_t)(off + reclen);
537 linux_dirent.dreclen = (u_short) linuxreclen;
538 }
539 strcpy(linux_dirent.dname, bdp->d_name);
540 if ((error = copyout((caddr_t)&linux_dirent, outp, linuxreclen))) {
541 goto out;
542 }
543 inp += reclen;
544 if (cookiep) {
545 off = *cookiep++;
546 ncookies--;
547 } else
548 off += reclen;
549 outp += linuxreclen;
550 resid -= linuxreclen;
551 len -= reclen;
552 if (justone)
553 break;
554 }
555
556 if (outp == (caddr_t) args->dent)
557 goto again;
558 fp->f_offset = off;
559
560 if (justone)
561 nbytes = resid + linuxreclen;
562
563eof:
564 p->p_retval[0] = nbytes - resid;
565out:
566 if (cookies)
567 free(cookies, M_TEMP);
568 VOP_UNLOCK(vp, 0, p);
569 free(buf, M_TEMP);
570 return error;
571}
572
573/*
574 * These exist mainly for hooks for doing /compat/linux translation.
575 */
576
577int
578linux_access(struct proc *p, struct linux_access_args *args)
579{
580 struct access_args bsd;
--- 63 unchanged lines hidden (view full) ---
644#endif
645 bsd.path = args->path;
646 bsd.mode = args->mode;
647
648 return chmod(p, &bsd);
649}
650
651int
652linux_chown(struct proc *p, struct linux_chown_args *args)
653{
654 struct chown_args bsd;
655 caddr_t sg;
656
657 sg = stackgap_init();
658 CHECKALTEXIST(p, &sg, args->path);
659
660#ifdef DEBUG
661 if (ldebug(chown))
662 printf(ARGS(chown, "%s, %d, %d"),
663 args->path, args->uid, args->gid);
664#endif
665 bsd.path = args->path;
666 /* XXX size casts here */
667 bsd.uid = args->uid;
668 bsd.gid = args->gid;
669
670 return chown(p, &bsd);
671}
672
673int
674linux_lchown(struct proc *p, struct linux_lchown_args *args)
675{
676 struct lchown_args bsd;
677 caddr_t sg;
678
679 sg = stackgap_init();
680 CHECKALTEXIST(p, &sg, args->path);
681
682#ifdef DEBUG
683 if (ldebug(lchown))
684 printf(ARGS(lchown, "%s, %d, %d"),
685 args->path, args->uid, args->gid);
686#endif
687 bsd.path = args->path;
688 /* XXX size casts here */
689 bsd.uid = args->uid;
690 bsd.gid = args->gid;
691
692 return lchown(p, &bsd);
693}
694
695int
696linux_mkdir(struct proc *p, struct linux_mkdir_args *args)
697{
698 struct mkdir_args bsd;
699 caddr_t sg;
700
701 sg = stackgap_init();
702 CHECKALTCREAT(p, &sg, args->path);
703
--- 92 unchanged lines hidden (view full) ---
796 struct truncate_args bsd;
797 caddr_t sg;
798
799 sg = stackgap_init();
800 CHECKALTEXIST(p, &sg, args->path);
801
802#ifdef DEBUG
803 if (ldebug(truncate))
804 printf(ARGS(truncate, "%s, %ld"), args->path, args->length);
805#endif
806 bsd.path = args->path;
807 bsd.length = args->length;
808
809 return truncate(p, &bsd);
810}
811
812int
--- 119 unchanged lines hidden (view full) ---
932 if (args->rwflag & LINUX_MS_REMOUNT)
933 fsflags |= MNT_UPDATE;
934 }
935
936 return (vfs_mount(p, fstype, mntonname, fsflags, fsdata));
937}
938
939int
940linux_umount(struct proc *p, struct linux_umount_args *args)
941{
942 struct linux_umount2_args args2;
943
944 args2.path = args->path;
945 args2.flags = 0;
946 return (linux_umount2(p, &args2));
947}
948
949int
950linux_umount2(struct proc *p, struct linux_umount2_args *args)
951{
952 struct unmount_args bsd;
953
954 bsd.path = args->path;
955 bsd.flags = args->flags; /* XXX correct? */
956 return (unmount(p, &bsd));
957}