1 /* $NetBSD: sunos_misc.c,v 1.177 2021/09/07 11:43:05 riastradh Exp $ */
2
3 /*
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. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 * @(#)sunos_misc.c 8.1 (Berkeley) 6/18/93
41 *
42 * Header: sunos_misc.c,v 1.16 93/04/07 02:46:27 torek Exp
43 */
44
45 /*
46 * SunOS compatibility module.
47 *
48 * SunOS system calls that are implemented differently in BSD are
49 * handled here.
50 */
51
52 #include <sys/cdefs.h>
53 __KERNEL_RCSID(0, "$NetBSD: sunos_misc.c,v 1.177 2021/09/07 11:43:05 riastradh Exp $");
54
55 #include <sys/param.h>
56 #include <sys/systm.h>
57 #include <sys/namei.h>
58 #include <sys/proc.h>
59 #include <sys/dirent.h>
60 #include <sys/file.h>
61 #include <sys/stat.h>
62 #include <sys/filedesc.h>
63 #include <sys/ioctl.h>
64 #include <sys/kernel.h>
65 #include <sys/reboot.h>
66 #include <sys/malloc.h>
67 #include <sys/mbuf.h>
68 #include <sys/mman.h>
69 #include <sys/mount.h>
70 #include <sys/ptrace.h>
71 #include <sys/resource.h>
72 #include <sys/resourcevar.h>
73 #include <sys/signal.h>
74 #include <sys/signalvar.h>
75 #include <sys/socket.h>
76 #include <sys/tty.h>
77 #include <sys/vnode.h>
78 #include <sys/uio.h>
79 #include <sys/wait.h>
80 #include <sys/utsname.h>
81 #include <sys/unistd.h>
82 #include <sys/syscall.h>
83 #include <sys/syscallargs.h>
84 #include <sys/conf.h>
85 #include <sys/socketvar.h>
86 #include <sys/exec.h>
87 #include <sys/swap.h>
88 #include <sys/kauth.h>
89
90 #include <compat/sys/signal.h>
91
92 #include <compat/sunos/sunos.h>
93 #include <compat/sunos/sunos_syscallargs.h>
94 #include <compat/common/compat_util.h>
95 #include <compat/sunos/sunos_dirent.h>
96 #include <compat/sys/mount.h>
97
98 #include <netinet/in.h>
99
100 #include <miscfs/specfs/specdev.h>
101
102 #include <nfs/rpcv2.h>
103 #include <nfs/nfsproto.h>
104 #include <nfs/nfs.h>
105 #include <nfs/nfsmount.h>
106
107 static int sunstatfs(struct statvfs *, void *);
108
109 int
sunos_sys_stime(struct lwp * l,const struct sunos_sys_stime_args * uap,register_t * retval)110 sunos_sys_stime(struct lwp *l, const struct sunos_sys_stime_args *uap, register_t *retval)
111 {
112 struct timeval tv;
113 int error;
114
115 error = copyin(SCARG(uap, tp), &tv.tv_sec, sizeof(tv.tv_sec));
116 if (error)
117 return error;
118 tv.tv_usec = 0;
119
120 return settimeofday1(&tv, false, NULL, l, true);
121 }
122
123 int
sunos_sys_wait4(struct lwp * l,const struct sunos_sys_wait4_args * uap,register_t * retval)124 sunos_sys_wait4(struct lwp *l, const struct sunos_sys_wait4_args *uap, register_t *retval)
125 {
126 struct compat_50_sys_wait4_args bsd_ua;
127
128 SCARG(&bsd_ua, pid) = SCARG(uap, pid) == 0 ? WAIT_ANY : SCARG(uap, pid);
129 SCARG(&bsd_ua, status) = SCARG(uap, status);
130 SCARG(&bsd_ua, options) = SCARG(uap, options);
131 SCARG(&bsd_ua, rusage) = SCARG(uap, rusage);
132
133 return (compat_50_sys_wait4(l, &bsd_ua, retval));
134 }
135
136 int
sunos_sys_creat(struct lwp * l,const struct sunos_sys_creat_args * uap,register_t * retval)137 sunos_sys_creat(struct lwp *l, const struct sunos_sys_creat_args *uap, register_t *retval)
138 {
139 struct sys_open_args ouap;
140
141 SCARG(&ouap, path) = SCARG(uap, path);
142 SCARG(&ouap, flags) = O_WRONLY | O_CREAT | O_TRUNC;
143 SCARG(&ouap, mode) = SCARG(uap, mode);
144
145 return (sys_open(l, &ouap, retval));
146 }
147
148 int
sunos_sys_execv(struct lwp * l,const struct sunos_sys_execv_args * uap,register_t * retval)149 sunos_sys_execv(struct lwp *l, const struct sunos_sys_execv_args *uap, register_t *retval)
150 {
151 /* {
152 syscallarg(const char *) path;
153 syscallarg(char **) argv;
154 } */
155 struct sys_execve_args ap;
156
157 SCARG(&ap, path) = SCARG(uap, path);
158 SCARG(&ap, argp) = SCARG(uap, argp);
159 SCARG(&ap, envp) = NULL;
160
161 return (sys_execve(l, &ap, retval));
162 }
163
164 int
sunos_sys_execve(struct lwp * l,const struct sunos_sys_execve_args * uap,register_t * retval)165 sunos_sys_execve(struct lwp *l, const struct sunos_sys_execve_args *uap, register_t *retval)
166 {
167 /* {
168 syscallarg(const char *) path;
169 syscallarg(char **) argv;
170 syscallarg(char **) envp;
171 } */
172 struct sys_execve_args ap;
173
174 SCARG(&ap, path) = SCARG(uap, path);
175 SCARG(&ap, argp) = SCARG(uap, argp);
176 SCARG(&ap, envp) = SCARG(uap, envp);
177
178 return (sys_execve(l, &ap, retval));
179 }
180
181 int
sunos_sys_omsync(struct lwp * l,const struct sunos_sys_omsync_args * uap,register_t * retval)182 sunos_sys_omsync(struct lwp *l, const struct sunos_sys_omsync_args *uap, register_t *retval)
183 {
184 struct sys___msync13_args ouap;
185
186 SCARG(&ouap, addr) = SCARG(uap, addr);
187 SCARG(&ouap, len) = SCARG(uap, len);
188 SCARG(&ouap, flags) = SCARG(uap, flags);
189
190 return (sys___msync13(l, &ouap, retval));
191 }
192
193 int
sunos_sys_unmount(struct lwp * l,const struct sunos_sys_unmount_args * uap,register_t * retval)194 sunos_sys_unmount(struct lwp *l, const struct sunos_sys_unmount_args *uap, register_t *retval)
195 {
196 struct sys_unmount_args ouap;
197
198 SCARG(&ouap, path) = SCARG(uap, path);
199 SCARG(&ouap, flags) = 0;
200
201 return (sys_unmount(l, &ouap, retval));
202 }
203
204 /*
205 * Conversion table for SunOS NFS mount flags.
206 */
207 static struct {
208 int sun_flg;
209 int bsd_flg;
210 } sunnfs_flgtab[] = {
211 { SUNNFS_SOFT, NFSMNT_SOFT },
212 { SUNNFS_WSIZE, NFSMNT_WSIZE },
213 { SUNNFS_RSIZE, NFSMNT_RSIZE },
214 { SUNNFS_TIMEO, NFSMNT_TIMEO },
215 { SUNNFS_RETRANS, NFSMNT_RETRANS },
216 { SUNNFS_HOSTNAME, 0 }, /* Ignored */
217 { SUNNFS_INT, NFSMNT_INT },
218 { SUNNFS_NOAC, 0 }, /* Ignored */
219 { SUNNFS_ACREGMIN, 0 }, /* Ignored */
220 { SUNNFS_ACREGMAX, 0 }, /* Ignored */
221 { SUNNFS_ACDIRMIN, 0 }, /* Ignored */
222 { SUNNFS_ACDIRMAX, 0 }, /* Ignored */
223 { SUNNFS_SECURE, 0 }, /* Ignored */
224 { SUNNFS_NOCTO, 0 }, /* Ignored */
225 { SUNNFS_POSIX, 0 } /* Ignored */
226 };
227
228 int
sunos_sys_mount(struct lwp * l,const struct sunos_sys_mount_args * uap,register_t * retval)229 sunos_sys_mount(struct lwp *l, const struct sunos_sys_mount_args *uap, register_t *retval)
230 {
231 int oflags = SCARG(uap, flags), nflags, error;
232 char fsname[MFSNAMELEN];
233 register_t dummy;
234
235 if (oflags & (SUNM_NOSUB | SUNM_SYS5))
236 return (EINVAL);
237 if ((oflags & SUNM_NEWTYPE) == 0)
238 return (EINVAL);
239 nflags = 0;
240 if (oflags & SUNM_RDONLY)
241 nflags |= MNT_RDONLY;
242 if (oflags & SUNM_NOSUID)
243 nflags |= MNT_NOSUID;
244 if (oflags & SUNM_REMOUNT)
245 nflags |= MNT_UPDATE;
246
247 error = copyinstr(SCARG(uap, type), fsname, sizeof fsname, NULL);
248 if (error)
249 return (error);
250
251 if (strcmp(fsname, "nfs") == 0) {
252 struct sunos_nfs_args sna;
253 struct nfs_args na;
254 int n;
255
256 error = copyin(SCARG(uap, data), &sna, sizeof sna);
257 if (error)
258 return (error);
259 /* sa.sa_len = sizeof(sain); */
260 na.version = NFS_ARGSVERSION;
261 na.addr = (void *)sna.addr;
262 na.addrlen = sizeof(struct sockaddr);
263 na.sotype = SOCK_DGRAM;
264 na.proto = IPPROTO_UDP;
265 na.fh = sna.fh;
266 na.fhsize = NFSX_V2FH;
267 na.flags = 0;
268 n = sizeof(sunnfs_flgtab) / sizeof(sunnfs_flgtab[0]);
269 while (--n >= 0)
270 if (sna.flags & sunnfs_flgtab[n].sun_flg)
271 na.flags |= sunnfs_flgtab[n].bsd_flg;
272 na.wsize = sna.wsize;
273 na.rsize = sna.rsize;
274 if (na.flags & NFSMNT_RSIZE) {
275 na.flags |= NFSMNT_READDIRSIZE;
276 na.readdirsize = na.rsize;
277 }
278 na.timeo = sna.timeo;
279 na.retrans = sna.retrans;
280 #ifdef __arch64__
281 /* XXX */
282 na.hostname = (char *)(intptr_t)sna.hostname;
283 #else
284 na.hostname = sna.hostname;
285 #endif
286 return do_sys_mount(l, "nfs", UIO_SYSSPACE,
287 SCARG(uap, dir), nflags, &na,
288 UIO_SYSSPACE, sizeof na, &dummy);
289 }
290
291 if (strcmp(fsname, "4.2") == 0)
292 strcpy(fsname, "ffs");
293
294 return do_sys_mount(l, fsname, UIO_SYSSPACE,
295 SCARG(uap, dir), nflags, SCARG(uap, data),
296 UIO_USERSPACE, 0, &dummy);
297 }
298
299 int
async_daemon(struct lwp * l,const void * v,register_t * retval)300 async_daemon(struct lwp *l, const void *v, register_t *retval)
301 {
302
303 return kpause("fakeniod", false, 0, NULL);
304 }
305
306 void native_to_sunos_sigset(const sigset_t *, int *);
307 void sunos_to_native_sigset(const int, sigset_t *);
308
309 inline void
native_to_sunos_sigset(const sigset_t * ss,int * mask)310 native_to_sunos_sigset(const sigset_t *ss, int *mask)
311 {
312
313 *mask = ss->__bits[0];
314 }
315
316 inline void
sunos_to_native_sigset(const int mask,sigset_t * ss)317 sunos_to_native_sigset(const int mask, sigset_t *ss)
318 {
319
320 memset(ss, 0, sizeof(*ss));
321 ss->__bits[0] = mask;
322 ss->__bits[1] = 0;
323 ss->__bits[2] = 0;
324 ss->__bits[3] = 0;
325 }
326
327 int
sunos_sys_sigpending(struct lwp * l,const struct sunos_sys_sigpending_args * uap,register_t * retval)328 sunos_sys_sigpending(struct lwp *l, const struct sunos_sys_sigpending_args *uap, register_t *retval)
329 {
330 sigset_t ss;
331 int mask;
332
333 sigpending1(l, &ss);
334 native_to_sunos_sigset(&ss, &mask);
335
336 return (copyout((void *)&mask, (void *)SCARG(uap, mask), sizeof(int)));
337 }
338
339 int
sunos_sys_sigsuspend(struct lwp * l,const struct sunos_sys_sigsuspend_args * uap,register_t * retval)340 sunos_sys_sigsuspend(struct lwp *l, const struct sunos_sys_sigsuspend_args *uap, register_t *retval)
341 {
342 /* {
343 syscallarg(int) mask;
344 } */
345 int mask;
346 sigset_t ss;
347
348 mask = SCARG(uap, mask);
349 sunos_to_native_sigset(mask, &ss);
350 return (sigsuspend1(l, &ss));
351 }
352
353 /*
354 * Read Sun-style directory entries. We suck them into kernel space so
355 * that they can be massaged before being copied out to user code. Like
356 * SunOS, we squish out `empty' entries.
357 *
358 * This is quite ugly, but what do you expect from compatibility code?
359 */
360 int
sunos_sys_getdents(struct lwp * l,const struct sunos_sys_getdents_args * uap,register_t * retval)361 sunos_sys_getdents(struct lwp *l, const struct sunos_sys_getdents_args *uap, register_t *retval)
362 {
363 struct dirent *bdp;
364 struct vnode *vp;
365 char *inp, *buf; /* BSD-format */
366 int len, reclen; /* BSD-format */
367 char *outp; /* Sun-format */
368 int resid, sunos_reclen;/* Sun-format */
369 struct file *fp;
370 struct uio auio;
371 struct iovec aiov;
372 struct sunos_dirent idb;
373 off_t off; /* true file offset */
374 int buflen, error, eofflag;
375 off_t *cookiebuf, *cookie;
376 int ncookies;
377
378 if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
379 return (error);
380
381 if ((fp->f_flag & FREAD) == 0) {
382 error = EBADF;
383 goto out1;
384 }
385
386 vp = fp->f_vnode;
387 if (vp->v_type != VDIR) {
388 error = EINVAL;
389 goto out1;
390 }
391
392 buflen = uimin(MAXBSIZE, SCARG(uap, nbytes));
393 buf = malloc(buflen, M_TEMP, M_WAITOK);
394 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
395 off = fp->f_offset;
396 again:
397 aiov.iov_base = buf;
398 aiov.iov_len = buflen;
399 auio.uio_iov = &aiov;
400 auio.uio_iovcnt = 1;
401 auio.uio_rw = UIO_READ;
402 auio.uio_resid = buflen;
403 auio.uio_offset = off;
404 UIO_SETUP_SYSSPACE(&auio);
405 /*
406 * First we read into the malloc'ed buffer, then
407 * we massage it into user space, one record at a time.
408 */
409 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf,
410 &ncookies);
411 if (error)
412 goto out;
413
414 inp = buf;
415 outp = SCARG(uap, buf);
416 resid = SCARG(uap, nbytes);
417 if ((len = buflen - auio.uio_resid) == 0)
418 goto eof;
419
420 for (cookie = cookiebuf; len > 0; len -= reclen) {
421 bdp = (struct dirent *)inp;
422 reclen = bdp->d_reclen;
423 if (reclen & 3) {
424 error = EIO;
425 goto out;
426 }
427 if ((*cookie >> 32) != 0) {
428 compat_offseterr(vp, "sunos_getdents");
429 error = EINVAL;
430 goto out;
431 }
432 if (bdp->d_fileno == 0) {
433 inp += reclen; /* it is a hole; squish it out */
434 if (cookie)
435 off = *cookie++;
436 else
437 off += reclen;
438 continue;
439 }
440 memset(&idb, 0, sizeof(idb));
441 sunos_reclen = SUNOS_RECLEN(&idb, bdp->d_namlen);
442 if (reclen > len || resid < sunos_reclen) {
443 /* entry too big for buffer, so just stop */
444 outp++;
445 break;
446 }
447 if (cookie)
448 off = *cookie++; /* each entry points to next */
449 else
450 off += reclen;
451 /*
452 * Massage in place to make a Sun-shaped dirent (otherwise
453 * we have to worry about touching user memory outside of
454 * the copyout() call).
455 */
456 idb.d_fileno = bdp->d_fileno;
457 idb.d_off = off;
458 idb.d_reclen = sunos_reclen;
459 idb.d_namlen = bdp->d_namlen;
460 strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name));
461 if ((error = copyout((void *)&idb, outp, sunos_reclen)) != 0)
462 goto out;
463 /* advance past this real entry */
464 inp += reclen;
465 /* advance output past Sun-shaped entry */
466 outp += sunos_reclen;
467 resid -= sunos_reclen;
468 }
469
470 /* if we squished out the whole block, try again */
471 if (outp == SCARG(uap, buf)) {
472 if (cookiebuf)
473 free(cookiebuf, M_TEMP);
474 cookiebuf = NULL;
475 goto again;
476 }
477 fp->f_offset = off; /* update the vnode offset */
478
479 eof:
480 *retval = SCARG(uap, nbytes) - resid;
481 out:
482 VOP_UNLOCK(vp);
483 free(cookiebuf, M_TEMP);
484 free(buf, M_TEMP);
485 out1:
486 fd_putfile(SCARG(uap, fd));
487 return (error);
488 }
489
490 #define SUNOS__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */
491
492 int
sunos_sys_mmap(struct lwp * l,const struct sunos_sys_mmap_args * uap,register_t * retval)493 sunos_sys_mmap(struct lwp *l, const struct sunos_sys_mmap_args *uap, register_t *retval)
494 {
495 struct sys_mmap_args ouap;
496
497 /*
498 * Verify the arguments.
499 */
500 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC))
501 return (EINVAL); /* XXX still needed? */
502
503 if ((SCARG(uap, flags) & SUNOS__MAP_NEW) == 0)
504 return (EINVAL);
505
506 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUNOS__MAP_NEW;
507 SCARG(&ouap, addr) = SCARG(uap, addr);
508 SCARG(&ouap, len) = SCARG(uap, len);
509 SCARG(&ouap, prot) = SCARG(uap, prot);
510 SCARG(&ouap, fd) = SCARG(uap, fd);
511 SCARG(&ouap, pos) = SCARG(uap, pos);
512
513 return (sys_mmap(l, &ouap, retval));
514 }
515
516 #define MC_SYNC 1
517 #define MC_LOCK 2
518 #define MC_UNLOCK 3
519 #define MC_ADVISE 4
520 #define MC_LOCKAS 5
521 #define MC_UNLOCKAS 6
522
523 int
sunos_sys_mctl(struct lwp * l,const struct sunos_sys_mctl_args * uap,register_t * retval)524 sunos_sys_mctl(struct lwp *l, const struct sunos_sys_mctl_args *uap, register_t *retval)
525 {
526
527 switch (SCARG(uap, func)) {
528 case MC_ADVISE: /* ignore for now */
529 return (0);
530 case MC_SYNC: /* translate to msync */
531 return (sys___msync13(l, (const void *)uap, retval));
532 default:
533 return (EINVAL);
534 }
535 }
536
537 int
sunos_sys_setsockopt(struct lwp * l,const struct sunos_sys_setsockopt_args * uap,register_t * retval)538 sunos_sys_setsockopt(struct lwp *l, const struct sunos_sys_setsockopt_args *uap, register_t *retval)
539 {
540 struct sockopt sopt;
541 struct socket *so;
542 int name = SCARG(uap, name);
543 int error;
544
545 /* fd_getsock() will use the descriptor for us */
546 if ((error = fd_getsock(SCARG(uap, s), &so)) != 0)
547 return (error);
548 #define SO_DONTLINGER (~SO_LINGER)
549 if (name == SO_DONTLINGER) {
550 struct linger lg;
551
552 lg.l_onoff = 0;
553 error = so_setsockopt(l, so, SCARG(uap, level), SO_LINGER,
554 &lg, sizeof(lg));
555 goto out;
556 }
557 if (SCARG(uap, level) == IPPROTO_IP) {
558 #define SUNOS_IP_MULTICAST_IF 2
559 #define SUNOS_IP_MULTICAST_TTL 3
560 #define SUNOS_IP_MULTICAST_LOOP 4
561 #define SUNOS_IP_ADD_MEMBERSHIP 5
562 #define SUNOS_IP_DROP_MEMBERSHIP 6
563 static const int ipoptxlat[] = {
564 IP_MULTICAST_IF,
565 IP_MULTICAST_TTL,
566 IP_MULTICAST_LOOP,
567 IP_ADD_MEMBERSHIP,
568 IP_DROP_MEMBERSHIP
569 };
570 if (name >= SUNOS_IP_MULTICAST_IF &&
571 name <= SUNOS_IP_DROP_MEMBERSHIP) {
572 name = ipoptxlat[name - SUNOS_IP_MULTICAST_IF];
573 }
574 }
575 if ((unsigned)SCARG(uap, valsize) > MLEN) {
576 error = EINVAL;
577 goto out;
578 }
579 sockopt_init(&sopt, SCARG(uap, level), name, SCARG(uap, valsize));
580 if (SCARG(uap, val)) {
581 error = copyin(SCARG(uap, val), sopt.sopt_data,
582 (u_int)SCARG(uap, valsize));
583 }
584 if (error == 0)
585 error = sosetopt(so, &sopt);
586 sockopt_destroy(&sopt);
587 out:
588 fd_putfile(SCARG(uap, s));
589 return (error);
590 }
591
592 static inline int sunos_sys_socket_common(struct lwp *, register_t *,
593 int type);
594 static inline int
sunos_sys_socket_common(struct lwp * l,register_t * retval,int type)595 sunos_sys_socket_common(struct lwp *l, register_t *retval, int type)
596 {
597 struct socket *so;
598 int error, fd;
599
600 /* fd_getsock() will use the descriptor for us */
601 fd = (int)*retval;
602 if ((error = fd_getsock(fd, &so)) == 0) {
603 if (type == SOCK_DGRAM)
604 so->so_options |= SO_BROADCAST;
605 fd_putfile(fd);
606 }
607 return (error);
608 }
609
610 int
sunos_sys_socket(struct lwp * l,const struct sunos_sys_socket_args * uap,register_t * retval)611 sunos_sys_socket(struct lwp *l, const struct sunos_sys_socket_args *uap, register_t *retval)
612 {
613 /* {
614 syscallarg(int) domain;
615 syscallarg(int) type;
616 syscallarg(int) protocol;
617 } */
618 int error;
619
620 error = compat_30_sys_socket(l, (const void *)uap, retval);
621 if (error)
622 return (error);
623 return sunos_sys_socket_common(l, retval, SCARG(uap, type));
624 }
625
626 int
sunos_sys_socketpair(struct lwp * l,const struct sunos_sys_socketpair_args * uap,register_t * retval)627 sunos_sys_socketpair(struct lwp *l, const struct sunos_sys_socketpair_args *uap, register_t *retval)
628 {
629 /* {
630 syscallarg(int) domain;
631 syscallarg(int) type;
632 syscallarg(int) protocol;
633 syscallarg(int *) rsv;
634 } */
635 int error;
636
637 error = sys_socketpair(l, (const void *)uap, retval);
638 if (error)
639 return (error);
640 return sunos_sys_socket_common(l, retval, SCARG(uap, type));
641 }
642
643 /*
644 * XXX: This needs cleaning up.
645 */
646 int
sunos_sys_auditsys(struct lwp * l,const struct sunos_sys_auditsys_args * uap,register_t * retval)647 sunos_sys_auditsys(struct lwp *l, const struct sunos_sys_auditsys_args *uap, register_t *retval)
648 {
649 return 0;
650 }
651
652 int
sunos_sys_uname(struct lwp * l,const struct sunos_sys_uname_args * uap,register_t * retval)653 sunos_sys_uname(struct lwp *l, const struct sunos_sys_uname_args *uap, register_t *retval)
654 {
655 struct sunos_utsname sut;
656
657 memset(&sut, 0, sizeof(sut));
658
659 strlcpy(sut.sysname, ostype, sizeof(sut.sysname));
660 strlcpy(sut.nodename, hostname, sizeof(sut.nodename));
661 strlcpy(sut.release, osrelease, sizeof(sut.release));
662 strlcpy(sut.version, "1", sizeof(sut.version));
663 strlcpy(sut.machine, machine, sizeof(sut.machine));
664
665 return copyout(&sut, SCARG(uap, name), sizeof(sut));
666 }
667
668 int
sunos_sys_setpgrp(struct lwp * l,const struct sunos_sys_setpgrp_args * uap,register_t * retval)669 sunos_sys_setpgrp(struct lwp *l, const struct sunos_sys_setpgrp_args *uap, register_t *retval)
670 {
671 struct proc *p = l->l_proc;
672
673 /*
674 * difference to our setpgid call is to include backwards
675 * compatibility to pre-setsid() binaries. Do setsid()
676 * instead of setpgid() in those cases where the process
677 * tries to create a new session the old way.
678 */
679 if (!SCARG(uap, pgid) &&
680 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid))
681 return sys_setsid(l, NULL, retval);
682 else
683 return sys_setpgid(l, (const void *)uap, retval);
684 }
685
686 int
sunos_sys_open(struct lwp * l,const struct sunos_sys_open_args * uap,register_t * retval)687 sunos_sys_open(struct lwp *l, const struct sunos_sys_open_args *uap, register_t *retval)
688 {
689 struct proc *p = l->l_proc;
690 struct sys_open_args open_ua;
691 int smode, nmode;
692 int noctty;
693 int ret;
694
695 /* convert mode into NetBSD mode */
696 smode = SCARG(uap, flags);
697 noctty = smode & 0x8000;
698 nmode = smode &
699 (0x0001 | 0x0002 | 0x0008 | 0x0040 | 0x0200 | 0x0400 | 0x0800);
700 nmode |= ((smode & (0x0004 | 0x1000 | 0x4000)) ? O_NONBLOCK : 0);
701 nmode |= ((smode & 0x0080) ? O_SHLOCK : 0);
702 nmode |= ((smode & 0x0100) ? O_EXLOCK : 0);
703 nmode |= ((smode & 0x2000) ? O_FSYNC : 0);
704
705 SCARG(&open_ua, path) = SCARG(uap, path);
706 SCARG(&open_ua, flags) = nmode;
707 SCARG(&open_ua, mode) = SCARG(uap, mode);
708 ret = sys_open(l, &open_ua, retval);
709
710 /* XXXSMP */
711 if (!ret && !noctty && SESS_LEADER(p) && !(p->p_lflag & PL_CONTROLT)) {
712 file_t *fp;
713 int fd;
714
715 fd = (int)*retval;
716 fp = fd_getfile(fd);
717
718 /* ignore any error, just give it a try */
719 if (fp != NULL) {
720 if (fp->f_type == DTYPE_VNODE)
721 (fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, NULL);
722 fd_putfile(fd);
723 }
724 }
725 return ret;
726 }
727
728 int
sunos_sys_ustat(struct lwp * l,const struct sunos_sys_ustat_args * uap,register_t * retval)729 sunos_sys_ustat(struct lwp *l, const struct sunos_sys_ustat_args *uap, register_t *retval)
730 {
731 struct sunos_ustat us;
732 int error;
733
734 memset(&us, 0, sizeof us);
735
736 /*
737 * XXX: should set f_tfree and f_tinode at least
738 * How do we translate dev -> fstat? (and then to sunos_ustat)
739 */
740
741 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0)
742 return (error);
743 return 0;
744 }
745
746 int
sunos_sys_quotactl(struct lwp * l,const struct sunos_sys_quotactl_args * uap,register_t * retval)747 sunos_sys_quotactl(struct lwp *l, const struct sunos_sys_quotactl_args *uap, register_t *retval)
748 {
749
750 return EINVAL;
751 }
752
753 int
sunos_sys_vhangup(struct lwp * l,const void * v,register_t * retval)754 sunos_sys_vhangup(struct lwp *l, const void *v, register_t *retval)
755 {
756 struct proc *p = l->l_proc;
757 struct session *sp = p->p_session;
758
759 if (sp->s_ttyvp == 0)
760 return 0;
761
762 if (sp->s_ttyp && sp->s_ttyp->t_session == sp && sp->s_ttyp->t_pgrp)
763 pgsignal(sp->s_ttyp->t_pgrp, SIGHUP, 1);
764
765 (void) ttywait(sp->s_ttyp);
766 if (sp->s_ttyvp)
767 VOP_REVOKE(sp->s_ttyvp, REVOKEALL);
768 if (sp->s_ttyvp)
769 vrele(sp->s_ttyvp);
770 sp->s_ttyvp = NULL;
771
772 return 0;
773 }
774
775 static int
sunstatfs(struct statvfs * sp,void * buf)776 sunstatfs(struct statvfs *sp, void *buf)
777 {
778 struct sunos_statfs ssfs;
779
780 memset(&ssfs, 0, sizeof ssfs);
781 ssfs.f_type = 0;
782 ssfs.f_bsize = sp->f_bsize;
783 ssfs.f_blocks = sp->f_blocks;
784 ssfs.f_bfree = sp->f_bfree;
785 ssfs.f_bavail = sp->f_bavail;
786 ssfs.f_files = sp->f_files;
787 ssfs.f_ffree = sp->f_ffree;
788 ssfs.f_fsid = sp->f_fsidx;
789 return copyout((void *)&ssfs, buf, sizeof ssfs);
790 }
791
792 int
sunos_sys_statfs(struct lwp * l,const struct sunos_sys_statfs_args * uap,register_t * retval)793 sunos_sys_statfs(struct lwp *l, const struct sunos_sys_statfs_args *uap, register_t *retval)
794 {
795 struct mount *mp;
796 struct statvfs *sp;
797 int error;
798 struct vnode *vp;
799
800 error = namei_simple_user(SCARG(uap, path),
801 NSM_FOLLOW_TRYEMULROOT, &vp);
802 if (error != 0)
803 return (error);
804 mp = vp->v_mount;
805 sp = &mp->mnt_stat;
806 vrele(vp);
807 if ((error = VFS_STATVFS(mp, sp)) != 0)
808 return (error);
809 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
810 return sunstatfs(sp, (void *)SCARG(uap, buf));
811 }
812
813 int
sunos_sys_fstatfs(struct lwp * l,const struct sunos_sys_fstatfs_args * uap,register_t * retval)814 sunos_sys_fstatfs(struct lwp *l, const struct sunos_sys_fstatfs_args *uap, register_t *retval)
815 {
816 file_t *fp;
817 struct mount *mp;
818 struct statvfs *sp;
819 int error;
820
821 /* fd_getvnode() will use the descriptor for us */
822 if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
823 return (error);
824 mp = fp->f_vnode->v_mount;
825 sp = &mp->mnt_stat;
826 if ((error = VFS_STATVFS(mp, sp)) != 0)
827 goto out;
828 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
829 error = sunstatfs(sp, (void *)SCARG(uap, buf));
830 out:
831 fd_putfile(SCARG(uap, fd));
832 return (error);
833 }
834
835 int
sunos_sys_exportfs(struct lwp * l,const struct sunos_sys_exportfs_args * uap,register_t * retval)836 sunos_sys_exportfs(struct lwp *l, const struct sunos_sys_exportfs_args *uap, register_t *retval)
837 {
838 /*
839 * XXX: should perhaps translate into a mount(2)
840 * with MOUNT_EXPORT?
841 */
842 return 0;
843 }
844
845 int
sunos_sys_mknod(struct lwp * l,const struct sunos_sys_mknod_args * uap,register_t * retval)846 sunos_sys_mknod(struct lwp *l, const struct sunos_sys_mknod_args *uap, register_t *retval)
847 {
848 struct sys_mkfifo_args fifo_ua;
849
850 if (S_ISFIFO(SCARG(uap, mode))) {
851 SCARG(&fifo_ua, path) = SCARG(uap, path);
852 SCARG(&fifo_ua, mode) = SCARG(uap, mode);
853 return sys_mkfifo(l, &fifo_ua, retval);
854 }
855
856 return compat_50_sys_mknod(l,
857 (const struct compat_50_sys_mknod_args *)uap, retval);
858 }
859
860 #define SUNOS_SC_ARG_MAX 1
861 #define SUNOS_SC_CHILD_MAX 2
862 #define SUNOS_SC_CLK_TCK 3
863 #define SUNOS_SC_NGROUPS_MAX 4
864 #define SUNOS_SC_OPEN_MAX 5
865 #define SUNOS_SC_JOB_CONTROL 6
866 #define SUNOS_SC_SAVED_IDS 7
867 #define SUNOS_SC_VERSION 8
868
869 int
sunos_sys_sysconf(struct lwp * l,const struct sunos_sys_sysconf_args * uap,register_t * retval)870 sunos_sys_sysconf(struct lwp *l, const struct sunos_sys_sysconf_args *uap, register_t *retval)
871 {
872
873 switch(SCARG(uap, name)) {
874 case SUNOS_SC_ARG_MAX:
875 *retval = ARG_MAX;
876 break;
877 case SUNOS_SC_CHILD_MAX:
878 *retval = maxproc;
879 break;
880 case SUNOS_SC_CLK_TCK:
881 *retval = 60; /* should this be `hz', ie. 100? */
882 break;
883 case SUNOS_SC_NGROUPS_MAX:
884 *retval = NGROUPS_MAX;
885 break;
886 case SUNOS_SC_OPEN_MAX:
887 *retval = maxfiles;
888 break;
889 case SUNOS_SC_JOB_CONTROL:
890 *retval = 1;
891 break;
892 case SUNOS_SC_SAVED_IDS:
893 #ifdef _POSIX_SAVED_IDS
894 *retval = 1;
895 #else
896 *retval = 0;
897 #endif
898 break;
899 case SUNOS_SC_VERSION:
900 *retval = 198808;
901 break;
902 default:
903 return EINVAL;
904 }
905 return 0;
906 }
907
908 #define SUNOS_RLIMIT_NOFILE 6 /* Other RLIMIT_* are the same */
909 #define SUNOS_RLIM_NLIMITS 7
910
911 int
sunos_sys_getrlimit(struct lwp * l,const struct sunos_sys_getrlimit_args * uap,register_t * retval)912 sunos_sys_getrlimit(struct lwp *l, const struct sunos_sys_getrlimit_args *uap, register_t *retval)
913 {
914 struct compat_43_sys_getrlimit_args ua_43;
915
916 SCARG(&ua_43, which) = SCARG(uap, which);
917 SCARG(&ua_43, rlp) = SCARG(uap, rlp);
918
919 if (SCARG(uap, which) >= SUNOS_RLIM_NLIMITS)
920 return EINVAL;
921
922 if (SCARG(uap, which) == SUNOS_RLIMIT_NOFILE)
923 SCARG(&ua_43, which) = RLIMIT_NOFILE;
924
925 return compat_43_sys_getrlimit(l, &ua_43, retval);
926 }
927
928 int
sunos_sys_setrlimit(struct lwp * l,const struct sunos_sys_setrlimit_args * uap,register_t * retval)929 sunos_sys_setrlimit(struct lwp *l, const struct sunos_sys_setrlimit_args *uap, register_t *retval)
930 {
931 struct compat_43_sys_setrlimit_args ua_43;
932
933 SCARG(&ua_43, which) = SCARG(uap, which);
934 SCARG(&ua_43, rlp) = SCARG(uap, rlp);
935
936 if (SCARG(uap, which) >= SUNOS_RLIM_NLIMITS)
937 return EINVAL;
938
939 if (SCARG(uap, which) == SUNOS_RLIMIT_NOFILE)
940 SCARG(&ua_43, which) = RLIMIT_NOFILE;
941
942 return compat_43_sys_setrlimit(l, &ua_43, retval);
943 }
944
945 /* for the m68k machines */
946 #ifndef PT_GETFPREGS
947 #define PT_GETFPREGS -1
948 #endif
949 #ifndef PT_SETFPREGS
950 #define PT_SETFPREGS -1
951 #endif
952
953 static const int sreq2breq[] = {
954 PT_TRACE_ME, PT_READ_I, PT_READ_D, -1,
955 PT_WRITE_I, PT_WRITE_D, -1, PT_CONTINUE,
956 PT_KILL, -1, PT_ATTACH, PT_DETACH,
957 PT_GETREGS, PT_SETREGS, PT_GETFPREGS, PT_SETFPREGS
958 };
959 static const int nreqs = sizeof(sreq2breq) / sizeof(sreq2breq[0]);
960
961 int
sunos_sys_ptrace(struct lwp * l,const struct sunos_sys_ptrace_args * uap,register_t * retval)962 sunos_sys_ptrace(struct lwp *l, const struct sunos_sys_ptrace_args *uap, register_t *retval)
963 {
964 struct sys_ptrace_args pa;
965 int req;
966
967 #define sys_ptrace sysent[SYS_ptrace].sy_call
968 if (sys_ptrace == sys_nosys)
969 return ENOSYS;
970
971 req = SCARG(uap, req);
972
973 if (req < 0 || req >= nreqs)
974 return (EINVAL);
975
976 req = sreq2breq[req];
977 if (req == -1)
978 return (EINVAL);
979
980 SCARG(&pa, req) = req;
981 SCARG(&pa, pid) = (pid_t)SCARG(uap, pid);
982 SCARG(&pa, addr) = (void *)SCARG(uap, addr);
983 SCARG(&pa, data) = SCARG(uap, data);
984
985 return sys_ptrace(l, &pa, retval);
986 }
987
988 /*
989 * SunOS reboot system call (for compatibility).
990 * Sun lets you pass in a boot string which the PROM
991 * saves and provides to the next boot program.
992 */
993
994 #define SUNOS_RB_ASKNAME 0x001
995 #define SUNOS_RB_SINGLE 0x002
996 #define SUNOS_RB_NOSYNC 0x004
997 #define SUNOS_RB_HALT 0x008
998 #define SUNOS_RB_DUMP 0x080
999 #define SUNOS_RB_STRING 0x200
1000
1001 static struct sunos_howto_conv {
1002 int sun_howto;
1003 int bsd_howto;
1004 } sunos_howto_conv[] = {
1005 { SUNOS_RB_ASKNAME, RB_ASKNAME },
1006 { SUNOS_RB_SINGLE, RB_SINGLE },
1007 { SUNOS_RB_NOSYNC, RB_NOSYNC },
1008 { SUNOS_RB_HALT, RB_HALT },
1009 { SUNOS_RB_DUMP, RB_DUMP },
1010 { SUNOS_RB_STRING, RB_STRING },
1011 { 0x000, 0 },
1012 };
1013
1014 int
sunos_sys_reboot(struct lwp * l,const struct sunos_sys_reboot_args * uap,register_t * retval)1015 sunos_sys_reboot(struct lwp *l, const struct sunos_sys_reboot_args *uap, register_t *retval)
1016 {
1017 struct sys_reboot_args ua;
1018 struct sunos_howto_conv *convp;
1019 int error, bsd_howto, sun_howto;
1020 char *bootstr;
1021 char bs[128];
1022
1023 if ((error = kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_REBOOT,
1024 0, NULL, NULL, NULL)) != 0)
1025 return (error);
1026
1027 /*
1028 * Convert howto bits to BSD format.
1029 */
1030 sun_howto = SCARG(uap, howto);
1031 bsd_howto = 0;
1032 convp = sunos_howto_conv;
1033 while (convp->sun_howto) {
1034 if (sun_howto & convp->sun_howto)
1035 bsd_howto |= convp->bsd_howto;
1036 convp++;
1037 }
1038
1039 /*
1040 * Sun RB_STRING (Get user supplied bootstring.)
1041 * If the machine supports passing a string to the
1042 * next booted kernel.
1043 */
1044 if (sun_howto & SUNOS_RB_STRING) {
1045 error = copyinstr(SCARG(uap, bootstr), bs, sizeof(bs), 0);
1046
1047 if (error)
1048 bootstr = NULL;
1049 else
1050 bootstr = bs;
1051 } else
1052 bootstr = NULL;
1053
1054 SCARG(&ua, opt) = bsd_howto;
1055 SCARG(&ua, bootstr) = bootstr;
1056 sys_reboot(l, &ua, retval);
1057 return(0);
1058 }
1059
1060 /*
1061 * Generalized interface signal handler, 4.3-compatible.
1062 */
1063 /* ARGSUSED */
1064 int
sunos_sys_sigvec(struct lwp * l,const struct sunos_sys_sigvec_args * uap,register_t * retval)1065 sunos_sys_sigvec(struct lwp *l, const struct sunos_sys_sigvec_args *uap, register_t *retval)
1066 {
1067 /* {
1068 syscallarg(int) signum;
1069 syscallarg(struct sigvec *) nsv;
1070 syscallarg(struct sigvec *) osv;
1071 } */
1072 struct sigvec nsv, osv;
1073 struct sigaction nsa, osa;
1074 int error;
1075 /*XXX*/extern void compat_43_sigvec_to_sigaction
1076 (const struct sigvec *, struct sigaction *);
1077 /*XXX*/extern void compat_43_sigaction_to_sigvec
1078 (const struct sigaction *, struct sigvec *);
1079
1080 if (SCARG(uap, nsv)) {
1081 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv));
1082 if (error != 0)
1083 return (error);
1084
1085 /*
1086 * SunOS uses the mask 0x0004 as SV_RESETHAND
1087 * meaning: `reset to SIG_DFL on delivery'.
1088 * We support only the bits in: 0xF
1089 * (those bits are the same as ours)
1090 */
1091 if (nsv.sv_flags & ~0xF)
1092 return (EINVAL);
1093
1094 compat_43_sigvec_to_sigaction(&nsv, &nsa);
1095 }
1096 error = sigaction1(l, SCARG(uap, signum),
1097 SCARG(uap, nsv) ? &nsa : 0,
1098 SCARG(uap, osv) ? &osa : 0,
1099 NULL, 0);
1100 if (error != 0)
1101 return (error);
1102
1103 if (SCARG(uap, osv)) {
1104 compat_43_sigaction_to_sigvec(&osa, &osv);
1105 error = copyout(&osv, SCARG(uap, osv), sizeof(osv));
1106 if (error != 0)
1107 return (error);
1108 }
1109
1110 return (0);
1111 }
1112