1 /*-
2 * Copyright (c) 1995 Steven Wallace
3 * Copyright (c) 1994, 1995 Scott Bartram
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This software was developed by the Computer Systems Engineering group
8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
9 * contributed to Berkeley.
10 *
11 * All advertising materials mentioning features or use of this software
12 * must display the following acknowledgement:
13 * This product includes software developed by the University of
14 * California, Lawrence Berkeley Laboratory.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
18 * are met:
19 * 1. Redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution.
24 * 3. All advertising materials mentioning features or use of this software
25 * must display the following acknowledgement:
26 * This product includes software developed by the University of
27 * California, Berkeley and its contributors.
28 * 4. Neither the name of the University nor the names of its contributors
29 * may be used to endorse or promote products derived from this software
30 * without specific prior written permission.
31 *
32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
42 * SUCH DAMAGE.
43 *
44 * from: Header: sun_misc.c,v 1.16 93/04/07 02:46:27 torek Exp
45 *
46 * @(#)sun_misc.c 8.1 (Berkeley) 6/18/93
47 */
48
49 #include <sys/cdefs.h>
50 __FBSDID("$FreeBSD$");
51
52 /*
53 * IBCS2 compatibility module.
54 *
55 * IBCS2 system calls that are implemented differently in BSD are
56 * handled here.
57 */
58 #include <sys/param.h>
59 #include <sys/systm.h>
60 #include <sys/capsicum.h>
61 #include <sys/dirent.h>
62 #include <sys/fcntl.h>
63 #include <sys/filedesc.h>
64 #include <sys/imgact.h>
65 #include <sys/kernel.h>
66 #include <sys/lock.h>
67 #include <sys/malloc.h>
68 #include <sys/file.h> /* Must come after sys/malloc.h */
69 #include <sys/mutex.h>
70 #include <sys/namei.h>
71 #include <sys/priv.h>
72 #include <sys/reboot.h>
73 #include <sys/resourcevar.h>
74 #include <sys/stat.h>
75 #include <sys/sysctl.h>
76 #include <sys/syscallsubr.h>
77 #include <sys/sysproto.h>
78 #include <sys/time.h>
79 #include <sys/times.h>
80 #include <sys/vnode.h>
81 #include <sys/wait.h>
82
83 #include <machine/cpu.h>
84
85 #include <i386/ibcs2/ibcs2_dirent.h>
86 #include <i386/ibcs2/ibcs2_signal.h>
87 #include <i386/ibcs2/ibcs2_proto.h>
88 #include <i386/ibcs2/ibcs2_unistd.h>
89 #include <i386/ibcs2/ibcs2_util.h>
90 #include <i386/ibcs2/ibcs2_utime.h>
91 #include <i386/ibcs2/ibcs2_xenix.h>
92
93 #include <security/mac/mac_framework.h>
94
95 int
96 ibcs2_ulimit(struct thread *td, struct ibcs2_ulimit_args *uap)
97 {
98 struct rlimit rl;
99 int error;
100 #define IBCS2_GETFSIZE 1
101 #define IBCS2_SETFSIZE 2
102 #define IBCS2_GETPSIZE 3
103 #define IBCS2_GETDTABLESIZE 4
104
105 switch (uap->cmd) {
106 case IBCS2_GETFSIZE:
107 td->td_retval[0] = lim_cur(td, RLIMIT_FSIZE);
108 if (td->td_retval[0] == -1)
109 td->td_retval[0] = 0x7fffffff;
110 return 0;
111 case IBCS2_SETFSIZE:
112 rl.rlim_max = lim_max(td, RLIMIT_FSIZE);
113 rl.rlim_cur = uap->newlimit;
114 error = kern_setrlimit(td, RLIMIT_FSIZE, &rl);
115 if (!error) {
116 td->td_retval[0] = lim_cur(td, RLIMIT_FSIZE);
117 } else {
118 DPRINTF(("failed "));
119 }
120 return error;
121 case IBCS2_GETPSIZE:
122 td->td_retval[0] = lim_cur(td, RLIMIT_RSS); /* XXX */
123 return 0;
124 case IBCS2_GETDTABLESIZE:
125 uap->cmd = IBCS2_SC_OPEN_MAX;
126 return ibcs2_sysconf(td, (struct ibcs2_sysconf_args *)uap);
127 default:
128 return ENOSYS;
129 }
130 }
131
132 #define IBCS2_WSTOPPED 0177
133 #define IBCS2_STOPCODE(sig) ((sig) << 8 | IBCS2_WSTOPPED)
134 int
135 ibcs2_wait(struct thread *td, struct ibcs2_wait_args *uap)
136 {
137 int error, options, status;
138 int *statusp;
139 pid_t pid;
140 struct trapframe *tf = td->td_frame;
141
142 if ((tf->tf_eflags & (PSL_Z|PSL_PF|PSL_N|PSL_V))
143 == (PSL_Z|PSL_PF|PSL_N|PSL_V)) {
144 /* waitpid */
145 pid = uap->a1;
146 statusp = (int *)uap->a2;
147 options = uap->a3;
148 } else {
149 /* wait */
150 pid = WAIT_ANY;
151 statusp = (int *)uap->a1;
152 options = 0;
153 }
154 error = kern_wait(td, pid, &status, options, NULL);
155 if (error)
156 return error;
157 if (statusp) {
158 /*
159 * Convert status/signal result.
160 */
161 if (WIFSTOPPED(status)) {
162 if (WSTOPSIG(status) <= 0 ||
163 WSTOPSIG(status) > IBCS2_SIGTBLSZ)
164 return (EINVAL);
165 status =
166 IBCS2_STOPCODE(bsd_to_ibcs2_sig[_SIG_IDX(WSTOPSIG(status))]);
167 } else if (WIFSIGNALED(status)) {
168 if (WTERMSIG(status) <= 0 ||
169 WTERMSIG(status) > IBCS2_SIGTBLSZ)
170 return (EINVAL);
171 status = bsd_to_ibcs2_sig[_SIG_IDX(WTERMSIG(status))];
172 }
173 /* else exit status -- identical */
174
175 /* record result/status */
176 td->td_retval[1] = status;
177 return copyout(&status, statusp, sizeof(status));
178 }
179
180 return 0;
181 }
182
183 int
184 ibcs2_execv(struct thread *td, struct ibcs2_execv_args *uap)
185 {
186 struct image_args eargs;
187 struct vmspace *oldvmspace;
188 char *path;
189 int error;
190
191 CHECKALTEXIST(td, uap->path, &path);
192
193 error = pre_execve(td, &oldvmspace);
194 if (error != 0) {
195 free(path, M_TEMP);
196 return (error);
197 }
198 error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp, NULL);
199 free(path, M_TEMP);
200 if (error == 0)
201 error = kern_execve(td, &eargs, NULL);
202 post_execve(td, error, oldvmspace);
203 return (error);
204 }
205
206 int
207 ibcs2_execve(struct thread *td, struct ibcs2_execve_args *uap)
208 {
209 struct image_args eargs;
210 struct vmspace *oldvmspace;
211 char *path;
212 int error;
213
214 CHECKALTEXIST(td, uap->path, &path);
215
216 error = pre_execve(td, &oldvmspace);
217 if (error != 0) {
218 free(path, M_TEMP);
219 return (error);
220 }
221 error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp,
222 uap->envp);
223 free(path, M_TEMP);
224 if (error == 0)
225 error = kern_execve(td, &eargs, NULL);
226 post_execve(td, error, oldvmspace);
227 return (error);
228 }
229
230 int
231 ibcs2_umount(struct thread *td, struct ibcs2_umount_args *uap)
232 {
233 struct unmount_args um;
234
235 um.path = uap->name;
236 um.flags = 0;
237 return sys_unmount(td, &um);
238 }
239
240 int
241 ibcs2_mount(struct thread *td, struct ibcs2_mount_args *uap)
242 {
243 #ifdef notyet
244 int oflags = uap->flags, nflags, error;
245 char fsname[MFSNAMELEN];
246
247 if (oflags & (IBCS2_MS_NOSUB | IBCS2_MS_SYS5))
248 return (EINVAL);
249 if ((oflags & IBCS2_MS_NEWTYPE) == 0)
250 return (EINVAL);
251 nflags = 0;
252 if (oflags & IBCS2_MS_RDONLY)
253 nflags |= MNT_RDONLY;
254 if (oflags & IBCS2_MS_NOSUID)
255 nflags |= MNT_NOSUID;
256 if (oflags & IBCS2_MS_REMOUNT)
257 nflags |= MNT_UPDATE;
258 uap->flags = nflags;
259
260 if (error = copyinstr((caddr_t)uap->type, fsname, sizeof fsname,
261 (u_int *)0))
262 return (error);
263
264 if (strcmp(fsname, "4.2") == 0) {
265 uap->type = (caddr_t)STACK_ALLOC();
266 if (error = copyout("ufs", uap->type, sizeof("ufs")))
267 return (error);
268 } else if (strcmp(fsname, "nfs") == 0) {
269 struct ibcs2_nfs_args sna;
270 struct sockaddr_in sain;
271 struct nfs_args na;
272 struct sockaddr sa;
273
274 if (error = copyin(uap->data, &sna, sizeof sna))
275 return (error);
276 if (error = copyin(sna.addr, &sain, sizeof sain))
277 return (error);
278 bcopy(&sain, &sa, sizeof sa);
279 sa.sa_len = sizeof(sain);
280 uap->data = (caddr_t)STACK_ALLOC();
281 na.addr = (struct sockaddr *)((int)uap->data + sizeof na);
282 na.sotype = SOCK_DGRAM;
283 na.proto = IPPROTO_UDP;
284 na.fh = (nfsv2fh_t *)sna.fh;
285 na.flags = sna.flags;
286 na.wsize = sna.wsize;
287 na.rsize = sna.rsize;
288 na.timeo = sna.timeo;
289 na.retrans = sna.retrans;
290 na.hostname = sna.hostname;
291
292 if (error = copyout(&sa, na.addr, sizeof sa))
293 return (error);
294 if (error = copyout(&na, uap->data, sizeof na))
295 return (error);
296 }
297 return (mount(td, uap));
298 #else
299 return EINVAL;
300 #endif
301 }
302
303 /*
304 * Read iBCS2-style directory entries. We suck them into kernel space so
305 * that they can be massaged before being copied out to user code. Like
306 * SunOS, we squish out `empty' entries.
307 *
308 * This is quite ugly, but what do you expect from compatibility code?
309 */
310
311 int
312 ibcs2_getdents(struct thread *td, struct ibcs2_getdents_args *uap)
313 {
314 struct vnode *vp;
315 caddr_t inp, buf; /* BSD-format */
316 int len, reclen; /* BSD-format */
317 caddr_t outp; /* iBCS2-format */
318 int resid; /* iBCS2-format */
319 cap_rights_t rights;
320 struct file *fp;
321 struct uio auio;
322 struct iovec aiov;
323 struct ibcs2_dirent idb;
324 off_t off; /* true file offset */
325 int buflen, error, eofflag;
326 u_long *cookies = NULL, *cookiep;
327 int ncookies;
328 #define BSD_DIRENT(cp) ((struct dirent *)(cp))
329 #define IBCS2_RECLEN(reclen) (reclen + sizeof(u_short))
330
331 memset(&idb, 0, sizeof(idb));
332 error = getvnode(td, uap->fd, cap_rights_init(&rights, CAP_READ), &fp);
333 if (error != 0)
334 return (error);
335 if ((fp->f_flag & FREAD) == 0) {
336 fdrop(fp, td);
337 return (EBADF);
338 }
339 vp = fp->f_vnode;
340 if (vp->v_type != VDIR) { /* XXX vnode readdir op should do this */
341 fdrop(fp, td);
342 return (EINVAL);
343 }
344
345 off = fp->f_offset;
346 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
347 buflen = max(DIRBLKSIZ, uap->nbytes);
348 buflen = min(buflen, MAXBSIZE);
349 buf = malloc(buflen, M_TEMP, M_WAITOK);
350 vn_lock(vp, LK_SHARED | LK_RETRY);
351 again:
352 aiov.iov_base = buf;
353 aiov.iov_len = buflen;
354 auio.uio_iov = &aiov;
355 auio.uio_iovcnt = 1;
356 auio.uio_rw = UIO_READ;
357 auio.uio_segflg = UIO_SYSSPACE;
358 auio.uio_td = td;
359 auio.uio_resid = buflen;
360 auio.uio_offset = off;
361
362 if (cookies) {
363 free(cookies, M_TEMP);
364 cookies = NULL;
365 }
366
367 #ifdef MAC
368 error = mac_vnode_check_readdir(td->td_ucred, vp);
369 if (error)
370 goto out;
371 #endif
372
373 /*
374 * First we read into the malloc'ed buffer, then
375 * we massage it into user space, one record at a time.
376 */
377 if ((error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, &cookies)) != 0)
378 goto out;
379 inp = buf;
380 outp = uap->buf;
381 resid = uap->nbytes;
382 if ((len = buflen - auio.uio_resid) <= 0)
383 goto eof;
384
385 cookiep = cookies;
386
387 if (cookies) {
388 /*
389 * When using cookies, the vfs has the option of reading from
390 * a different offset than that supplied (UFS truncates the
391 * offset to a block boundary to make sure that it never reads
392 * partway through a directory entry, even if the directory
393 * has been compacted).
394 */
395 while (len > 0 && ncookies > 0 && *cookiep <= off) {
396 len -= BSD_DIRENT(inp)->d_reclen;
397 inp += BSD_DIRENT(inp)->d_reclen;
398 cookiep++;
399 ncookies--;
400 }
401 }
402
403 for (; len > 0; len -= reclen) {
404 if (cookiep && ncookies == 0)
405 break;
406 reclen = BSD_DIRENT(inp)->d_reclen;
407 if (reclen & 3) {
408 printf("ibcs2_getdents: reclen=%d\n", reclen);
409 error = EFAULT;
410 goto out;
411 }
412 if (BSD_DIRENT(inp)->d_fileno == 0) {
413 inp += reclen; /* it is a hole; squish it out */
414 if (cookiep) {
415 off = *cookiep++;
416 ncookies--;
417 } else
418 off += reclen;
419 continue;
420 }
421 if (reclen > len || resid < IBCS2_RECLEN(reclen)) {
422 /* entry too big for buffer, so just stop */
423 outp++;
424 break;
425 }
426 /*
427 * Massage in place to make an iBCS2-shaped dirent (otherwise
428 * we have to worry about touching user memory outside of
429 * the copyout() call).
430 */
431 idb.d_ino = (ibcs2_ino_t)BSD_DIRENT(inp)->d_fileno;
432 idb.d_off = (ibcs2_off_t)off;
433 idb.d_reclen = (u_short)IBCS2_RECLEN(reclen);
434 if ((error = copyout((caddr_t)&idb, outp, 10)) != 0 ||
435 (error = copyout(BSD_DIRENT(inp)->d_name, outp + 10,
436 BSD_DIRENT(inp)->d_namlen + 1)) != 0)
437 goto out;
438 /* advance past this real entry */
439 if (cookiep) {
440 off = *cookiep++;
441 ncookies--;
442 } else
443 off += reclen;
444 inp += reclen;
445 /* advance output past iBCS2-shaped entry */
446 outp += IBCS2_RECLEN(reclen);
447 resid -= IBCS2_RECLEN(reclen);
448 }
449 /* if we squished out the whole block, try again */
450 if (outp == uap->buf)
451 goto again;
452 fp->f_offset = off; /* update the vnode offset */
453 eof:
454 td->td_retval[0] = uap->nbytes - resid;
455 out:
456 VOP_UNLOCK(vp, 0);
457 fdrop(fp, td);
458 if (cookies)
459 free(cookies, M_TEMP);
460 free(buf, M_TEMP);
461 return (error);
462 }
463
464 int
465 ibcs2_read(struct thread *td, struct ibcs2_read_args *uap)
466 {
467 struct vnode *vp;
468 caddr_t inp, buf; /* BSD-format */
469 int len, reclen; /* BSD-format */
470 caddr_t outp; /* iBCS2-format */
471 int resid; /* iBCS2-format */
472 cap_rights_t rights;
473 struct file *fp;
474 struct uio auio;
475 struct iovec aiov;
476 struct ibcs2_direct {
477 ibcs2_ino_t ino;
478 char name[14];
479 } idb;
480 off_t off; /* true file offset */
481 int buflen, error, eofflag, size;
482 u_long *cookies = NULL, *cookiep;
483 int ncookies;
484
485 error = getvnode(td, uap->fd, cap_rights_init(&rights, CAP_READ), &fp);
486 if (error != 0) {
487 if (error == EINVAL)
488 return sys_read(td, (struct read_args *)uap);
489 else
490 return error;
491 }
492 if ((fp->f_flag & FREAD) == 0) {
493 fdrop(fp, td);
494 return (EBADF);
495 }
496 vp = fp->f_vnode;
497 if (vp->v_type != VDIR) {
498 fdrop(fp, td);
499 return sys_read(td, (struct read_args *)uap);
500 }
501
502 off = fp->f_offset;
503
504 DPRINTF(("ibcs2_read: read directory\n"));
505
506 buflen = max(DIRBLKSIZ, uap->nbytes);
507 buflen = min(buflen, MAXBSIZE);
508 buf = malloc(buflen, M_TEMP, M_WAITOK);
509 vn_lock(vp, LK_SHARED | LK_RETRY);
510 again:
511 aiov.iov_base = buf;
512 aiov.iov_len = buflen;
513 auio.uio_iov = &aiov;
514 auio.uio_iovcnt = 1;
515 auio.uio_rw = UIO_READ;
516 auio.uio_segflg = UIO_SYSSPACE;
517 auio.uio_td = td;
518 auio.uio_resid = buflen;
519 auio.uio_offset = off;
520
521 if (cookies) {
522 free(cookies, M_TEMP);
523 cookies = NULL;
524 }
525
526 #ifdef MAC
527 error = mac_vnode_check_readdir(td->td_ucred, vp);
528 if (error)
529 goto out;
530 #endif
531
532 /*
533 * First we read into the malloc'ed buffer, then
534 * we massage it into user space, one record at a time.
535 */
536 if ((error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, &cookies)) != 0) {
537 DPRINTF(("VOP_READDIR failed: %d\n", error));
538 goto out;
539 }
540 inp = buf;
541 outp = uap->buf;
542 resid = uap->nbytes;
543 if ((len = buflen - auio.uio_resid) <= 0)
544 goto eof;
545
546 cookiep = cookies;
547
548 if (cookies) {
549 /*
550 * When using cookies, the vfs has the option of reading from
551 * a different offset than that supplied (UFS truncates the
552 * offset to a block boundary to make sure that it never reads
553 * partway through a directory entry, even if the directory
554 * has been compacted).
555 */
556 while (len > 0 && ncookies > 0 && *cookiep <= off) {
557 len -= BSD_DIRENT(inp)->d_reclen;
558 inp += BSD_DIRENT(inp)->d_reclen;
559 cookiep++;
560 ncookies--;
561 }
562 }
563
564 for (; len > 0 && resid > 0; len -= reclen) {
565 if (cookiep && ncookies == 0)
566 break;
567 reclen = BSD_DIRENT(inp)->d_reclen;
568 if (reclen & 3) {
569 printf("ibcs2_read: reclen=%d\n", reclen);
570 error = EFAULT;
571 goto out;
572 }
573 if (BSD_DIRENT(inp)->d_fileno == 0) {
574 inp += reclen; /* it is a hole; squish it out */
575 if (cookiep) {
576 off = *cookiep++;
577 ncookies--;
578 } else
579 off += reclen;
580 continue;
581 }
582 if (reclen > len || resid < sizeof(struct ibcs2_direct)) {
583 /* entry too big for buffer, so just stop */
584 outp++;
585 break;
586 }
587 /*
588 * Massage in place to make an iBCS2-shaped dirent (otherwise
589 * we have to worry about touching user memory outside of
590 * the copyout() call).
591 *
592 * TODO: if length(filename) > 14, then break filename into
593 * multiple entries and set inode = 0xffff except last
594 */
595 idb.ino = (BSD_DIRENT(inp)->d_fileno > 0xfffe) ? 0xfffe :
596 BSD_DIRENT(inp)->d_fileno;
597 (void)copystr(BSD_DIRENT(inp)->d_name, idb.name, 14, &size);
598 bzero(idb.name + size, 14 - size);
599 if ((error = copyout(&idb, outp, sizeof(struct ibcs2_direct))) != 0)
600 goto out;
601 /* advance past this real entry */
602 if (cookiep) {
603 off = *cookiep++;
604 ncookies--;
605 } else
606 off += reclen;
607 inp += reclen;
608 /* advance output past iBCS2-shaped entry */
609 outp += sizeof(struct ibcs2_direct);
610 resid -= sizeof(struct ibcs2_direct);
611 }
612 /* if we squished out the whole block, try again */
613 if (outp == uap->buf)
614 goto again;
615 fp->f_offset = off; /* update the vnode offset */
616 eof:
617 td->td_retval[0] = uap->nbytes - resid;
618 out:
619 VOP_UNLOCK(vp, 0);
620 fdrop(fp, td);
621 if (cookies)
622 free(cookies, M_TEMP);
623 free(buf, M_TEMP);
624 return (error);
625 }
626
627 int
628 ibcs2_mknod(struct thread *td, struct ibcs2_mknod_args *uap)
629 {
630 char *path;
631 int error;
632
633 CHECKALTCREAT(td, uap->path, &path);
634 if (S_ISFIFO(uap->mode)) {
635 error = kern_mkfifoat(td, AT_FDCWD, path,
636 UIO_SYSSPACE, uap->mode);
637 } else {
638 error = kern_mknodat(td, AT_FDCWD, path, UIO_SYSSPACE,
639 uap->mode, uap->dev);
640 }
641 free(path, M_TEMP);
642 return (error);
643 }
644
645 int
646 ibcs2_getgroups(struct thread *td, struct ibcs2_getgroups_args *uap)
647 {
648 struct ucred *cred;
649 ibcs2_gid_t *iset;
650 u_int i, ngrp;
651 int error;
652
653 cred = td->td_ucred;
654 ngrp = cred->cr_ngroups;
655
656 if (uap->gidsetsize == 0) {
657 error = 0;
658 goto out;
659 }
660 if (uap->gidsetsize < ngrp)
661 return (EINVAL);
662
663 iset = malloc(ngrp * sizeof(*iset), M_TEMP, M_WAITOK);
664 for (i = 0; i < ngrp; i++)
665 iset[i] = (ibcs2_gid_t)cred->cr_groups[i];
666 error = copyout(iset, uap->gidset, ngrp * sizeof(ibcs2_gid_t));
667 free(iset, M_TEMP);
668 out:
669 td->td_retval[0] = ngrp;
670 return (error);
671 }
672
673 int
674 ibcs2_setgroups(struct thread *td, struct ibcs2_setgroups_args *uap)
675 {
676 ibcs2_gid_t *iset;
677 gid_t *gp;
678 int error, i;
679
680 if (uap->gidsetsize < 0 || uap->gidsetsize > ngroups_max + 1)
681 return (EINVAL);
682 if (uap->gidsetsize && uap->gidset == NULL)
683 return (EINVAL);
684 gp = malloc(uap->gidsetsize * sizeof(*gp), M_TEMP, M_WAITOK);
685 if (uap->gidsetsize) {
686 iset = malloc(uap->gidsetsize * sizeof(*iset), M_TEMP, M_WAITOK);
687 error = copyin(uap->gidset, iset, sizeof(ibcs2_gid_t) *
688 uap->gidsetsize);
689 if (error) {
690 free(iset, M_TEMP);
691 goto out;
692 }
693 for (i = 0; i < uap->gidsetsize; i++)
694 gp[i] = (gid_t)iset[i];
695 }
696
697 error = kern_setgroups(td, uap->gidsetsize, gp);
698 out:
699 free(gp, M_TEMP);
700 return (error);
701 }
702
703 int
704 ibcs2_setuid(struct thread *td, struct ibcs2_setuid_args *uap)
705 {
706 struct setuid_args sa;
707
708 sa.uid = (uid_t)uap->uid;
709 return sys_setuid(td, &sa);
710 }
711
712 int
713 ibcs2_setgid(struct thread *td, struct ibcs2_setgid_args *uap)
714 {
715 struct setgid_args sa;
716
717 sa.gid = (gid_t)uap->gid;
718 return sys_setgid(td, &sa);
719 }
720
721 int
722 ibcs2_time(struct thread *td, struct ibcs2_time_args *uap)
723 {
724 struct timeval tv;
725
726 microtime(&tv);
727 td->td_retval[0] = tv.tv_sec;
728 if (uap->tp)
729 return copyout((caddr_t)&tv.tv_sec, (caddr_t)uap->tp,
730 sizeof(ibcs2_time_t));
731 else
732 return 0;
733 }
734
735 int
736 ibcs2_pathconf(struct thread *td, struct ibcs2_pathconf_args *uap)
737 {
738 char *path;
739 int error;
740
741 CHECKALTEXIST(td, uap->path, &path);
742 uap->name++; /* iBCS2 _PC_* defines are offset by one */
743 error = kern_pathconf(td, path, UIO_SYSSPACE, uap->name, FOLLOW);
744 free(path, M_TEMP);
745 return (error);
746 }
747
748 int
749 ibcs2_fpathconf(struct thread *td, struct ibcs2_fpathconf_args *uap)
750 {
751 uap->name++; /* iBCS2 _PC_* defines are offset by one */
752 return sys_fpathconf(td, (struct fpathconf_args *)uap);
753 }
754
755 int
756 ibcs2_sysconf(struct thread *td, struct ibcs2_sysconf_args *uap)
757 {
758 int mib[2], value, len, error;
759
760 switch(uap->name) {
761 case IBCS2_SC_ARG_MAX:
762 mib[1] = KERN_ARGMAX;
763 break;
764
765 case IBCS2_SC_CHILD_MAX:
766 td->td_retval[0] = lim_cur(td, RLIMIT_NPROC);
767 return 0;
768
769 case IBCS2_SC_CLK_TCK:
770 td->td_retval[0] = hz;
771 return 0;
772
773 case IBCS2_SC_NGROUPS_MAX:
774 mib[1] = KERN_NGROUPS;
775 break;
776
777 case IBCS2_SC_OPEN_MAX:
778 td->td_retval[0] = lim_cur(td, RLIMIT_NOFILE);
779 return 0;
780
781 case IBCS2_SC_JOB_CONTROL:
782 mib[1] = KERN_JOB_CONTROL;
783 break;
784
785 case IBCS2_SC_SAVED_IDS:
786 mib[1] = KERN_SAVED_IDS;
787 break;
788
789 case IBCS2_SC_VERSION:
790 mib[1] = KERN_POSIX1;
791 break;
792
793 case IBCS2_SC_PASS_MAX:
794 td->td_retval[0] = 128; /* XXX - should we create PASS_MAX ? */
795 return 0;
796
797 case IBCS2_SC_XOPEN_VERSION:
798 td->td_retval[0] = 2; /* XXX: What should that be? */
799 return 0;
800
801 default:
802 return EINVAL;
803 }
804
805 mib[0] = CTL_KERN;
806 len = sizeof(value);
807 error = kernel_sysctl(td, mib, 2, &value, &len, NULL, 0, NULL, 0);
808 if (error)
809 return error;
810 td->td_retval[0] = value;
811 return 0;
812 }
813
814 int
815 ibcs2_alarm(struct thread *td, struct ibcs2_alarm_args *uap)
816 {
817 struct itimerval itv, oitv;
818 int error;
819
820 timevalclear(&itv.it_interval);
821 itv.it_value.tv_sec = uap->sec;
822 itv.it_value.tv_usec = 0;
823 error = kern_setitimer(td, ITIMER_REAL, &itv, &oitv);
824 if (error)
825 return (error);
826 if (oitv.it_value.tv_usec != 0)
827 oitv.it_value.tv_sec++;
828 td->td_retval[0] = oitv.it_value.tv_sec;
829 return (0);
830 }
831
832 int
833 ibcs2_times(struct thread *td, struct ibcs2_times_args *uap)
834 {
835 struct rusage ru;
836 struct timeval t;
837 struct tms tms;
838 int error;
839
840 #define CONVTCK(r) (r.tv_sec * hz + r.tv_usec / (1000000 / hz))
841
842 error = kern_getrusage(td, RUSAGE_SELF, &ru);
843 if (error)
844 return (error);
845 tms.tms_utime = CONVTCK(ru.ru_utime);
846 tms.tms_stime = CONVTCK(ru.ru_stime);
847
848 error = kern_getrusage(td, RUSAGE_CHILDREN, &ru);
849 if (error)
850 return (error);
851 tms.tms_cutime = CONVTCK(ru.ru_utime);
852 tms.tms_cstime = CONVTCK(ru.ru_stime);
853
854 microtime(&t);
855 td->td_retval[0] = CONVTCK(t);
856
857 return (copyout(&tms, uap->tp, sizeof(struct tms)));
858 }
859
860 int
861 ibcs2_stime(struct thread *td, struct ibcs2_stime_args *uap)
862 {
863 struct timeval tv;
864 long secs;
865 int error;
866
867 error = copyin(uap->timep, &secs, sizeof(long));
868 if (error)
869 return (error);
870 tv.tv_sec = secs;
871 tv.tv_usec = 0;
872 error = kern_settimeofday(td, &tv, NULL);
873 if (error)
874 error = EPERM;
875 return (error);
876 }
877
878 int
879 ibcs2_utime(struct thread *td, struct ibcs2_utime_args *uap)
880 {
881 struct ibcs2_utimbuf ubuf;
882 struct timeval tbuf[2], *tp;
883 char *path;
884 int error;
885
886 if (uap->buf) {
887 error = copyin(uap->buf, &ubuf, sizeof(ubuf));
888 if (error)
889 return (error);
890 tbuf[0].tv_sec = ubuf.actime;
891 tbuf[0].tv_usec = 0;
892 tbuf[1].tv_sec = ubuf.modtime;
893 tbuf[1].tv_usec = 0;
894 tp = tbuf;
895 } else
896 tp = NULL;
897
898 CHECKALTEXIST(td, uap->path, &path);
899 error = kern_utimesat(td, AT_FDCWD, path, UIO_SYSSPACE,
900 tp, UIO_SYSSPACE);
901 free(path, M_TEMP);
902 return (error);
903 }
904
905 int
906 ibcs2_nice(struct thread *td, struct ibcs2_nice_args *uap)
907 {
908 int error;
909 struct setpriority_args sa;
910
911 sa.which = PRIO_PROCESS;
912 sa.who = 0;
913 sa.prio = td->td_proc->p_nice + uap->incr;
914 if ((error = sys_setpriority(td, &sa)) != 0)
915 return EPERM;
916 td->td_retval[0] = td->td_proc->p_nice;
917 return 0;
918 }
919
920 /*
921 * iBCS2 getpgrp, setpgrp, setsid, and setpgid
922 */
923
924 int
925 ibcs2_pgrpsys(struct thread *td, struct ibcs2_pgrpsys_args *uap)
926 {
927 struct proc *p = td->td_proc;
928 switch (uap->type) {
929 case 0: /* getpgrp */
930 PROC_LOCK(p);
931 td->td_retval[0] = p->p_pgrp->pg_id;
932 PROC_UNLOCK(p);
933 return 0;
934
935 case 1: /* setpgrp */
936 {
937 struct setpgid_args sa;
938
939 sa.pid = 0;
940 sa.pgid = 0;
941 sys_setpgid(td, &sa);
942 PROC_LOCK(p);
943 td->td_retval[0] = p->p_pgrp->pg_id;
944 PROC_UNLOCK(p);
945 return 0;
946 }
947
948 case 2: /* setpgid */
949 {
950 struct setpgid_args sa;
951
952 sa.pid = uap->pid;
953 sa.pgid = uap->pgid;
954 return sys_setpgid(td, &sa);
955 }
956
957 case 3: /* setsid */
958 return sys_setsid(td, NULL);
959
960 default:
961 return EINVAL;
962 }
963 }
964
965 /*
966 * XXX - need to check for nested calls
967 */
968
969 int
970 ibcs2_plock(struct thread *td, struct ibcs2_plock_args *uap)
971 {
972 int error;
973 #define IBCS2_UNLOCK 0
974 #define IBCS2_PROCLOCK 1
975 #define IBCS2_TEXTLOCK 2
976 #define IBCS2_DATALOCK 4
977
978
979 switch(uap->cmd) {
980 case IBCS2_UNLOCK:
981 error = priv_check(td, PRIV_VM_MUNLOCK);
982 if (error)
983 return (error);
984 /* XXX - TODO */
985 return (0);
986
987 case IBCS2_PROCLOCK:
988 case IBCS2_TEXTLOCK:
989 case IBCS2_DATALOCK:
990 error = priv_check(td, PRIV_VM_MLOCK);
991 if (error)
992 return (error);
993 /* XXX - TODO */
994 return 0;
995 }
996 return EINVAL;
997 }
998
999 int
1000 ibcs2_uadmin(struct thread *td, struct ibcs2_uadmin_args *uap)
1001 {
1002 #define SCO_A_REBOOT 1
1003 #define SCO_A_SHUTDOWN 2
1004 #define SCO_A_REMOUNT 4
1005 #define SCO_A_CLOCK 8
1006 #define SCO_A_SETCONFIG 128
1007 #define SCO_A_GETDEV 130
1008
1009 #define SCO_AD_HALT 0
1010 #define SCO_AD_BOOT 1
1011 #define SCO_AD_IBOOT 2
1012 #define SCO_AD_PWRDOWN 3
1013 #define SCO_AD_PWRNAP 4
1014
1015 #define SCO_AD_PANICBOOT 1
1016
1017 #define SCO_AD_GETBMAJ 0
1018 #define SCO_AD_GETCMAJ 1
1019
1020 switch(uap->cmd) {
1021 case SCO_A_REBOOT:
1022 case SCO_A_SHUTDOWN:
1023 switch(uap->func) {
1024 struct reboot_args r;
1025 case SCO_AD_HALT:
1026 case SCO_AD_PWRDOWN:
1027 case SCO_AD_PWRNAP:
1028 r.opt = RB_HALT;
1029 return (sys_reboot(td, &r));
1030 case SCO_AD_BOOT:
1031 case SCO_AD_IBOOT:
1032 r.opt = RB_AUTOBOOT;
1033 return (sys_reboot(td, &r));
1034 }
1035 return EINVAL;
1036 case SCO_A_REMOUNT:
1037 case SCO_A_CLOCK:
1038 case SCO_A_SETCONFIG:
1039 return 0;
1040 case SCO_A_GETDEV:
1041 return EINVAL; /* XXX - TODO */
1042 }
1043 return EINVAL;
1044 }
1045
1046 int
1047 ibcs2_sysfs(struct thread *td, struct ibcs2_sysfs_args *uap)
1048 {
1049 #define IBCS2_GETFSIND 1
1050 #define IBCS2_GETFSTYP 2
1051 #define IBCS2_GETNFSTYP 3
1052
1053 switch(uap->cmd) {
1054 case IBCS2_GETFSIND:
1055 case IBCS2_GETFSTYP:
1056 case IBCS2_GETNFSTYP:
1057 break;
1058 }
1059 return EINVAL; /* XXX - TODO */
1060 }
1061
1062 int
1063 ibcs2_unlink(struct thread *td, struct ibcs2_unlink_args *uap)
1064 {
1065 char *path;
1066 int error;
1067
1068 CHECKALTEXIST(td, uap->path, &path);
1069 error = kern_unlinkat(td, AT_FDCWD, path, UIO_SYSSPACE, 0);
1070 free(path, M_TEMP);
1071 return (error);
1072 }
1073
1074 int
1075 ibcs2_chdir(struct thread *td, struct ibcs2_chdir_args *uap)
1076 {
1077 char *path;
1078 int error;
1079
1080 CHECKALTEXIST(td, uap->path, &path);
1081 error = kern_chdir(td, path, UIO_SYSSPACE);
1082 free(path, M_TEMP);
1083 return (error);
1084 }
1085
1086 int
1087 ibcs2_chmod(struct thread *td, struct ibcs2_chmod_args *uap)
1088 {
1089 char *path;
1090 int error;
1091
1092 CHECKALTEXIST(td, uap->path, &path);
1093 error = kern_fchmodat(td, AT_FDCWD, path, UIO_SYSSPACE, uap->mode, 0);
1094 free(path, M_TEMP);
1095 return (error);
1096 }
1097
1098 int
1099 ibcs2_chown(struct thread *td, struct ibcs2_chown_args *uap)
1100 {
1101 char *path;
1102 int error;
1103
1104 CHECKALTEXIST(td, uap->path, &path);
1105 error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, uap->uid,
1106 uap->gid, 0);
1107 free(path, M_TEMP);
1108 return (error);
1109 }
1110
1111 int
1112 ibcs2_rmdir(struct thread *td, struct ibcs2_rmdir_args *uap)
1113 {
1114 char *path;
1115 int error;
1116
1117 CHECKALTEXIST(td, uap->path, &path);
1118 error = kern_rmdirat(td, AT_FDCWD, path, UIO_SYSSPACE);
1119 free(path, M_TEMP);
1120 return (error);
1121 }
1122
1123 int
1124 ibcs2_mkdir(struct thread *td, struct ibcs2_mkdir_args *uap)
1125 {
1126 char *path;
1127 int error;
1128
1129 CHECKALTEXIST(td, uap->path, &path);
1130 error = kern_mkdirat(td, AT_FDCWD, path, UIO_SYSSPACE, uap->mode);
1131 free(path, M_TEMP);
1132 return (error);
1133 }
1134
1135 int
1136 ibcs2_symlink(struct thread *td, struct ibcs2_symlink_args *uap)
1137 {
1138 char *path, *link;
1139 int error;
1140
1141 CHECKALTEXIST(td, uap->path, &path);
1142
1143 /*
1144 * Have to expand CHECKALTCREAT() so that 'path' can be freed on
1145 * errors.
1146 */
1147 error = ibcs2_emul_find(td, uap->link, UIO_USERSPACE, &link, 1);
1148 if (link == NULL) {
1149 free(path, M_TEMP);
1150 return (error);
1151 }
1152 error = kern_symlinkat(td, path, AT_FDCWD, link, UIO_SYSSPACE);
1153 free(path, M_TEMP);
1154 free(link, M_TEMP);
1155 return (error);
1156 }
1157
1158 int
1159 ibcs2_rename(struct thread *td, struct ibcs2_rename_args *uap)
1160 {
1161 char *from, *to;
1162 int error;
1163
1164 CHECKALTEXIST(td, uap->from, &from);
1165
1166 /*
1167 * Have to expand CHECKALTCREAT() so that 'from' can be freed on
1168 * errors.
1169 */
1170 error = ibcs2_emul_find(td, uap->to, UIO_USERSPACE, &to, 1);
1171 if (to == NULL) {
1172 free(from, M_TEMP);
1173 return (error);
1174 }
1175 error = kern_renameat(td, AT_FDCWD, from, AT_FDCWD, to, UIO_SYSSPACE);
1176 free(from, M_TEMP);
1177 free(to, M_TEMP);
1178 return (error);
1179 }
1180
1181 int
1182 ibcs2_readlink(struct thread *td, struct ibcs2_readlink_args *uap)
1183 {
1184 char *path;
1185 int error;
1186
1187 CHECKALTEXIST(td, uap->path, &path);
1188 error = kern_readlinkat(td, AT_FDCWD, path, UIO_SYSSPACE,
1189 uap->buf, UIO_USERSPACE, uap->count);
1190 free(path, M_TEMP);
1191 return (error);
1192 }
Cache object: 4c1cd2d4b535298f6748884edc7ad129
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