1 /*	$NetBSD: netbsd32_compat_43.c,v 1.22 2002/05/04 12:54:03 martin Exp $	*/
2 
3 /*
4  * Copyright (c) 1998, 2001 Matthew R. Green
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. The name of the author may not be used to endorse or promote products
16  *    derived from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_43.c,v 1.22 2002/05/04 12:54:03 martin Exp $");
33 
34 #if defined(_KERNEL_OPT)
35 #include "opt_compat_43.h"
36 #endif
37 
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/fcntl.h>
41 #include <sys/malloc.h>
42 #include <sys/mount.h>
43 #include <sys/proc.h>
44 #include <sys/stat.h>
45 #include <sys/syscallargs.h>
46 #include <sys/time.h>
47 #include <sys/ucred.h>
48 #include <uvm/uvm_extern.h>
49 #include <sys/sysctl.h>
50 #include <sys/swap.h>
51 
52 #include <compat/netbsd32/netbsd32.h>
53 #include <compat/netbsd32/netbsd32_syscallargs.h>
54 
55 int compat_43_netbsd32_sethostid __P((struct proc *, void *, register_t *));
56 int compat_43_netbsd32_killpg __P((struct proc *, void *, register_t *retval));
57 int compat_43_netbsd32_sigblock __P((struct proc *, void *, register_t *retval));
58 int compat_43_netbsd32_sigblock __P((struct proc *, void *, register_t *retval));
59 int compat_43_netbsd32_sigsetmask __P((struct proc *, void *, register_t *retval));
60 
61 void
62 netbsd32_from_stat43(sp43, sp32)
63 	struct stat43 *sp43;
64 	struct netbsd32_stat43 *sp32;
65 {
66 
67 	sp32->st_dev = sp43->st_dev;
68 	sp32->st_ino = sp43->st_ino;
69 	sp32->st_mode = sp43->st_mode;
70 	sp32->st_nlink = sp43->st_nlink;
71 	sp32->st_uid = sp43->st_uid;
72 	sp32->st_gid = sp43->st_gid;
73 	sp32->st_rdev = sp43->st_rdev;
74 	sp32->st_size = sp43->st_size;
75 	sp32->st_atimespec.tv_sec = sp43->st_atimespec.tv_sec;
76 	sp32->st_atimespec.tv_nsec = sp43->st_atimespec.tv_nsec;
77 	sp32->st_mtimespec.tv_sec = sp43->st_mtimespec.tv_sec;
78 	sp32->st_mtimespec.tv_nsec = sp43->st_mtimespec.tv_nsec;
79 	sp32->st_ctimespec.tv_sec = sp43->st_ctimespec.tv_sec;
80 	sp32->st_ctimespec.tv_nsec = sp43->st_ctimespec.tv_nsec;
81 	sp32->st_blksize = sp43->st_blksize;
82 	sp32->st_blocks = sp43->st_blocks;
83 	sp32->st_flags = sp43->st_flags;
84 	sp32->st_gen = sp43->st_gen;
85 }
86 
87 /* file system syscalls */
88 int
89 compat_43_netbsd32_ocreat(p, v, retval)
90 	struct proc *p;
91 	void *v;
92 	register_t *retval;
93 {
94 	struct compat_43_netbsd32_ocreat_args /* {
95 		syscallarg(const netbsd32_charp) path;
96 		syscallarg(mode_t) mode;
97 	} */ *uap = v;
98 	struct sys_open_args  ua;
99 	caddr_t sg;
100 
101 	NETBSD32TOP_UAP(path, const char);
102 	NETBSD32TO64_UAP(mode);
103 	SCARG(&ua, flags) = O_WRONLY | O_CREAT | O_TRUNC;
104 	sg = stackgap_init(p, 0);
105 	CHECK_ALT_EXIST(p, &sg, SCARG(&ua, path));
106 
107 	return (sys_open(p, &ua, retval));
108 }
109 
110 int
111 compat_43_netbsd32_olseek(p, v, retval)
112 	struct proc *p;
113 	void *v;
114 	register_t *retval;
115 {
116 	struct compat_43_netbsd32_olseek_args /* {
117 		syscallarg(int) fd;
118 		syscallarg(netbsd32_long) offset;
119 		syscallarg(int) whence;
120 	} */ *uap = v;
121 	struct sys_lseek_args ua;
122 	int rv;
123 	off_t rt;
124 
125 	SCARG(&ua, fd) = SCARG(uap, fd);
126 	NETBSD32TOX_UAP(offset, long);
127 	NETBSD32TO64_UAP(whence);
128 	rv = sys_lseek(p, &ua, (register_t *)&rt);
129 	*retval = rt;
130 
131 	return (rv);
132 }
133 
134 int
135 compat_43_netbsd32_stat43(p, v, retval)
136 	struct proc *p;
137 	void *v;
138 	register_t *retval;
139 {
140 	struct compat_43_netbsd32_stat43_args /* {
141 		syscallarg(const netbsd32_charp) path;
142 		syscallarg(netbsd32_stat43p_t) ub;
143 	} */ *uap = v;
144 	struct stat43 sb43, *sgsbp;
145 	struct netbsd32_stat43 sb32;
146 	struct compat_43_sys_stat_args ua;
147 	caddr_t sg = stackgap_init(p, 0);
148 	int rv, error;
149 
150 	NETBSD32TOP_UAP(path, const char);
151 	SCARG(&ua, ub) = sgsbp = stackgap_alloc(p, &sg, sizeof(sb43));
152 	CHECK_ALT_EXIST(p, &sg, SCARG(&ua, path));
153 	rv = compat_43_sys_stat(p, &ua, retval);
154 
155 	error = copyin(sgsbp, &sb43, sizeof(sb43));
156 	if (error)
157 		return error;
158 	netbsd32_from_stat43(&sb43, &sb32);
159 	error = copyout(&sb32, (char *)(u_long)SCARG(uap, ub), sizeof(sb32));
160 	if (error)
161 		return error;
162 
163 	return (rv);
164 }
165 
166 int
167 compat_43_netbsd32_lstat43(p, v, retval)
168 	struct proc *p;
169 	void *v;
170 	register_t *retval;
171 {
172 	struct compat_43_netbsd32_lstat43_args /* {
173 		syscallarg(const netbsd32_charp) path;
174 		syscallarg(netbsd32_stat43p_t) ub;
175 	} */ *uap = v;
176 	struct stat43 sb43, *sgsbp;
177 	struct netbsd32_stat43 sb32;
178 	struct compat_43_sys_lstat_args ua;
179 	caddr_t sg = stackgap_init(p, 0);
180 	int rv, error;
181 
182 	NETBSD32TOP_UAP(path, const char);
183 	SCARG(&ua, ub) = sgsbp = stackgap_alloc(p, &sg, sizeof(sb43));
184 	CHECK_ALT_EXIST(p, &sg, SCARG(&ua, path));
185 	rv = compat_43_sys_stat(p, &ua, retval);
186 
187 	error = copyin(sgsbp, &sb43, sizeof(sb43));
188 	if (error)
189 		return error;
190 	netbsd32_from_stat43(&sb43, &sb32);
191 	error = copyout(&sb32, (char *)(u_long)SCARG(uap, ub), sizeof(sb32));
192 	if (error)
193 		return error;
194 
195 	return (rv);
196 }
197 
198 int
199 compat_43_netbsd32_fstat43(p, v, retval)
200 	struct proc *p;
201 	void *v;
202 	register_t *retval;
203 {
204 	struct compat_43_netbsd32_fstat43_args /* {
205 		syscallarg(int) fd;
206 		syscallarg(netbsd32_stat43p_t) sb;
207 	} */ *uap = v;
208 	struct stat43 sb43, *sgsbp;
209 	struct netbsd32_stat43 sb32;
210 	struct compat_43_sys_fstat_args ua;
211 	caddr_t sg = stackgap_init(p, 0);
212 	int rv, error;
213 
214 	NETBSD32TO64_UAP(fd);
215 	SCARG(&ua, sb) = sgsbp = stackgap_alloc(p, &sg, sizeof(sb43));
216 	rv = compat_43_sys_fstat(p, &ua, retval);
217 
218 	error = copyin(sgsbp, &sb43, sizeof(sb43));
219 	if (error)
220 		return error;
221 	netbsd32_from_stat43(&sb43, &sb32);
222 	error = copyout(&sb32, (char *)(u_long)SCARG(uap, sb), sizeof(sb32));
223 	if (error)
224 		return error;
225 
226 	return (rv);
227 }
228 
229 int
230 compat_43_netbsd32_otruncate(p, v, retval)
231 	struct proc *p;
232 	void *v;
233 	register_t *retval;
234 {
235 	struct compat_43_netbsd32_otruncate_args /* {
236 		syscallarg(const netbsd32_charp) path;
237 		syscallarg(netbsd32_long) length;
238 	} */ *uap = v;
239 	struct sys_truncate_args ua;
240 
241 	NETBSD32TOP_UAP(path, const char);
242 	NETBSD32TO64_UAP(length);
243 	return (sys_ftruncate(p, &ua, retval));
244 }
245 
246 int
247 compat_43_netbsd32_oftruncate(p, v, retval)
248 	struct proc *p;
249 	void *v;
250 	register_t *retval;
251 {
252 	struct compat_43_netbsd32_oftruncate_args /* {
253 		syscallarg(int) fd;
254 		syscallarg(netbsd32_long) length;
255 	} */ *uap = v;
256 	struct sys_ftruncate_args ua;
257 
258 	NETBSD32TO64_UAP(fd);
259 	NETBSD32TO64_UAP(length);
260 	return (sys_ftruncate(p, &ua, retval));
261 }
262 
263 int
264 compat_43_netbsd32_ogetdirentries(p, v, retval)
265 	struct proc *p;
266 	void *v;
267 	register_t *retval;
268 {
269 	struct compat_43_netbsd32_ogetdirentries_args /* {
270 		syscallarg(int) fd;
271 		syscallarg(netbsd32_charp) buf;
272 		syscallarg(u_int) count;
273 		syscallarg(netbsd32_longp) basep;
274 	} */ *uap = v;
275 	struct compat_43_sys_getdirentries_args ua;
276 
277 	NETBSD32TO64_UAP(fd);
278 	NETBSD32TOP_UAP(buf, char);
279 	NETBSD32TO64_UAP(count);
280 	NETBSD32TOP_UAP(basep, long);
281 	return (compat_43_sys_getdirentries(p, &ua, retval));
282 }
283 
284 /* kernel syscalls */
285 int
286 compat_43_netbsd32_ogetkerninfo(p, v, retval)
287 	struct proc *p;
288 	void *v;
289 	register_t *retval;
290 {
291 	struct compat_43_netbsd32_ogetkerninfo_args /* {
292 		syscallarg(int) op;
293 		syscallarg(netbsd32_charp) where;
294 		syscallarg(netbsd32_intp) size;
295 		syscallarg(int) arg;
296 	} */ *uap = v;
297 	struct compat_43_sys_getkerninfo_args ua;
298 
299 	NETBSD32TO64_UAP(op);
300 	NETBSD32TOP_UAP(where, char);
301 	NETBSD32TOP_UAP(size, int);
302 	NETBSD32TO64_UAP(arg);
303 	return (compat_43_sys_getkerninfo(p, &ua, retval));
304 }
305 
306 int
307 compat_43_netbsd32_ogethostname(p, v, retval)
308 	struct proc *p;
309 	void *v;
310 	register_t *retval;
311 {
312 	struct compat_43_netbsd32_ogethostname_args /* {
313 		syscallarg(netbsd32_charp) hostname;
314 		syscallarg(u_int) len;
315 	} */ *uap = v;
316 	int name;
317 	size_t sz;
318 
319 	name = KERN_HOSTNAME;
320 	sz = SCARG(uap, len);
321 	return (kern_sysctl(&name, 1, (char *)(u_long)SCARG(uap, hostname),
322 	    &sz, 0, 0, p));
323 }
324 
325 int
326 compat_43_netbsd32_osethostname(p, v, retval)
327 	struct proc *p;
328 	void *v;
329 	register_t *retval;
330 {
331 	struct compat_43_netbsd32_osethostname_args /* {
332 		syscallarg(netbsd32_charp) hostname;
333 		syscallarg(u_int) len;
334 	} */ *uap = v;
335 	int name;
336 	int error;
337 
338 	if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
339 		return (error);
340 	name = KERN_HOSTNAME;
341 	return (kern_sysctl(&name, 1, 0, 0, (char *)(u_long)SCARG(uap,
342 	    hostname), SCARG(uap, len), p));
343 }
344 
345 int
346 compat_43_netbsd32_sethostid(p, v, retval)
347 	struct proc *p;
348 	void *v;
349 	register_t *retval;
350 {
351 	struct compat_43_netbsd32_sethostid_args /* {
352 		syscallarg(int32_t) hostid;
353 	} */ *uap = v;
354 	struct compat_43_sys_sethostid_args ua;
355 
356 	NETBSD32TO64_UAP(hostid);
357 	return (compat_43_sys_sethostid(p, &ua, retval));
358 }
359 
360 int
361 compat_43_netbsd32_ogetrlimit(p, v, retval)
362 	struct proc *p;
363 	void *v;
364 	register_t *retval;
365 {
366 	struct compat_43_netbsd32_ogetrlimit_args /* {
367 		syscallarg(int) which;
368 		syscallarg(netbsd32_orlimitp_t) rlp;
369 	} */ *uap = v;
370 	struct compat_43_sys_getrlimit_args ua;
371 
372 	NETBSD32TO64_UAP(which);
373 	NETBSD32TOP_UAP(rlp, struct orlimit);
374 	return (compat_43_sys_getrlimit(p, &ua, retval));
375 }
376 
377 int
378 compat_43_netbsd32_osetrlimit(p, v, retval)
379 	struct proc *p;
380 	void *v;
381 	register_t *retval;
382 {
383 	struct compat_43_netbsd32_osetrlimit_args /* {
384 		syscallarg(int) which;
385 		syscallarg(netbsd32_orlimitp_t) rlp;
386 	} */ *uap = v;
387 	struct compat_43_sys_setrlimit_args ua;
388 
389 	NETBSD32TO64_UAP(which);
390 	NETBSD32TOP_UAP(rlp, struct orlimit);
391 	return (compat_43_sys_setrlimit(p, &ua, retval));
392 }
393 
394 int
395 compat_43_netbsd32_killpg(p, v, retval)
396 	struct proc *p;
397 	void *v;
398 	register_t *retval;
399 {
400 	struct compat_43_netbsd32_killpg_args /* {
401 		syscallarg(int) pgid;
402 		syscallarg(int) signum;
403 	} */ *uap = v;
404 	struct compat_43_sys_killpg_args ua;
405 
406 	NETBSD32TO64_UAP(pgid);
407 	NETBSD32TO64_UAP(signum);
408 	return (compat_43_sys_killpg(p, &ua, retval));
409 }
410 
411 /* virtual memory syscalls */
412 int
413 compat_43_netbsd32_ommap(p, v, retval)
414 	struct proc *p;
415 	void *v;
416 	register_t *retval;
417 {
418 	struct compat_43_netbsd32_ommap_args /* {
419 		syscallarg(netbsd32_caddr_t) addr;
420 		syscallarg(netbsd32_size_t) len;
421 		syscallarg(int) prot;
422 		syscallarg(int) flags;
423 		syscallarg(int) fd;
424 		syscallarg(netbsd32_long) pos;
425 	} */ *uap = v;
426 	struct compat_43_sys_mmap_args ua;
427 
428 	NETBSD32TOX64_UAP(addr, caddr_t);
429 	NETBSD32TOX_UAP(len, size_t);
430 	NETBSD32TO64_UAP(prot);
431 	NETBSD32TO64_UAP(flags);
432 	NETBSD32TO64_UAP(fd);
433 	NETBSD32TOX_UAP(pos, long);
434 	return (compat_43_sys_mmap(p, &ua, retval));
435 }
436 
437 /* network syscalls */
438 int
439 compat_43_netbsd32_oaccept(p, v, retval)
440 	struct proc *p;
441 	void *v;
442 	register_t *retval;
443 {
444 	struct compat_43_netbsd32_oaccept_args /* {
445 		syscallarg(int) s;
446 		syscallarg(netbsd32_caddr_t) name;
447 		syscallarg(netbsd32_intp) anamelen;
448 	} */ *uap = v;
449 	struct compat_43_sys_accept_args ua;
450 
451 	NETBSD32TOX_UAP(s, int);
452 	NETBSD32TOX64_UAP(name, caddr_t);
453 	NETBSD32TOP_UAP(anamelen, int);
454 	return (compat_43_sys_accept(p, &ua, retval));
455 }
456 
457 int
458 compat_43_netbsd32_osend(p, v, retval)
459 	struct proc *p;
460 	void *v;
461 	register_t *retval;
462 {
463 	struct compat_43_netbsd32_osend_args /* {
464 		syscallarg(int) s;
465 		syscallarg(netbsd32_caddr_t) buf;
466 		syscallarg(int) len;
467 		syscallarg(int) flags;
468 	} */ *uap = v;
469 	struct compat_43_sys_send_args ua;
470 
471 	NETBSD32TO64_UAP(s);
472 	NETBSD32TOX64_UAP(buf, caddr_t);
473 	NETBSD32TO64_UAP(len);
474 	NETBSD32TO64_UAP(flags);
475 	return (compat_43_sys_send(p, &ua, retval));
476 }
477 
478 int
479 compat_43_netbsd32_orecv(p, v, retval)
480 	struct proc *p;
481 	void *v;
482 	register_t *retval;
483 {
484 	struct compat_43_netbsd32_orecv_args /* {
485 		syscallarg(int) s;
486 		syscallarg(netbsd32_caddr_t) buf;
487 		syscallarg(int) len;
488 		syscallarg(int) flags;
489 	} */ *uap = v;
490 	struct compat_43_sys_recv_args ua;
491 
492 	NETBSD32TO64_UAP(s);
493 	NETBSD32TOX64_UAP(buf, caddr_t);
494 	NETBSD32TO64_UAP(len);
495 	NETBSD32TO64_UAP(flags);
496 	return (compat_43_sys_recv(p, &ua, retval));
497 }
498 
499 /*
500  * XXX convert these to use a common iovec code to the native
501  * netbsd call.
502  */
503 int
504 compat_43_netbsd32_orecvmsg(p, v, retval)
505 	struct proc *p;
506 	void *v;
507 	register_t *retval;
508 {
509 	struct compat_43_netbsd32_orecvmsg_args /* {
510 		syscallarg(int) s;
511 		syscallarg(netbsd32_omsghdrp_t) msg;
512 		syscallarg(int) flags;
513 	} */ *uap = v;
514 	struct compat_43_sys_recvmsg_args ua;
515 	struct omsghdr omh, *sgsbp;
516 	struct netbsd32_omsghdr omh32;
517 	struct iovec iov, *sgsbp2;
518 	struct netbsd32_iovec iov32, *iovec32p;
519 	caddr_t sg = stackgap_init(p, 0);
520 	int i, error, rv;
521 
522 	NETBSD32TO64_UAP(s);
523 	NETBSD32TO64_UAP(flags);
524 
525 	/*
526 	 * this is annoying:
527 	 *	- copyin the msghdr32 struct
528 	 *	- stackgap_alloc a msghdr struct
529 	 *	- convert msghdr32 to msghdr:
530 	 *		- stackgap_alloc enough space for iovec's
531 	 *		- copy in each iov32, and convert to iov
532 	 *		- copyout converted iov
533 	 *	- copyout converted msghdr
534 	 *	- do real syscall
535 	 *	- copyin the msghdr struct
536 	 *	- convert msghdr to msghdr32
537 	 *		- copyin each iov and convert to iov32
538 	 *		- copyout converted iov32
539 	 *	- copyout converted msghdr32
540 	 */
541 	error = copyin((caddr_t)(u_long)SCARG(uap, msg), &omh32, sizeof(omh32));
542 	if (error)
543 		return (error);
544 
545 	SCARG(&ua, msg) = sgsbp = stackgap_alloc(p, &sg, sizeof(omh));
546 	omh.msg_name = (caddr_t)(u_long)omh32.msg_name;
547 	omh.msg_namelen = omh32.msg_namelen;
548 	omh.msg_iovlen = (size_t)omh32.msg_iovlen;
549 	omh.msg_iov = sgsbp2 = stackgap_alloc(p, &sg, sizeof(struct iovec) * omh.msg_iovlen);
550 	iovec32p = (struct netbsd32_iovec *)(u_long)omh32.msg_iov;
551 	for (i = 0; i < omh.msg_iovlen; i++, sgsbp2++, iovec32p++) {
552 		error = copyin(iovec32p, &iov32, sizeof(iov32));
553 		if (error)
554 			return (error);
555 		iov.iov_base = (struct iovec *)(u_long)iovec32p->iov_base;
556 		iov.iov_len = (size_t)iovec32p->iov_len;
557 		error = copyout(&iov, sgsbp2, sizeof(iov));
558 		if (error)
559 			return (error);
560 	}
561 	omh.msg_accrights = (caddr_t)(u_long)omh32.msg_accrights;
562 	omh.msg_accrightslen = omh32.msg_accrightslen;
563 	error = copyout(&omh, sgsbp, sizeof(omh));
564 	if (error)
565 		return (error);
566 
567 	rv = compat_43_sys_recvmsg(p, &ua, retval);
568 
569 	error = copyin(sgsbp, &omh, sizeof(omh));
570 	if (error)
571 		return error;
572 	omh32.msg_name = (netbsd32_caddr_t)(u_long)omh.msg_name;
573 	omh32.msg_namelen = omh.msg_namelen;
574 	omh32.msg_iovlen = (netbsd32_size_t)omh.msg_iovlen;
575 	iovec32p = (struct netbsd32_iovec *)(u_long)omh32.msg_iov;
576 	sgsbp2 = omh.msg_iov;
577 	for (i = 0; i < omh.msg_iovlen; i++, sgsbp2++, iovec32p++) {
578 		error = copyin(sgsbp2, &iov, sizeof(iov));
579 		if (error)
580 			return (error);
581 		iov32.iov_base = (netbsd32_iovecp_t)(u_long)iov.iov_base;
582 		iov32.iov_len = (netbsd32_size_t)iov.iov_len;
583 		error = copyout(&iov32, iovec32p, sizeof(iov32));
584 		if (error)
585 			return (error);
586 	}
587 	omh32.msg_accrights = (netbsd32_caddr_t)(u_long)omh.msg_accrights;
588 	omh32.msg_accrightslen = omh.msg_accrightslen;
589 
590 	error = copyout(&omh32, (char *)(u_long)SCARG(uap, msg), sizeof(omh32));
591 	if (error)
592 		return error;
593 
594 	return (rv);
595 }
596 
597 int
598 compat_43_netbsd32_osendmsg(p, v, retval)
599 	struct proc *p;
600 	void *v;
601 	register_t *retval;
602 {
603 	struct compat_43_netbsd32_osendmsg_args /* {
604 		syscallarg(int) s;
605 		syscallarg(netbsd32_caddr_t) msg;
606 		syscallarg(int) flags;
607 	} */ *uap = v;
608 	struct compat_43_sys_recvmsg_args ua;
609 	struct omsghdr omh, *sgsbp;
610 	struct netbsd32_omsghdr omh32;
611 	struct iovec iov, *sgsbp2;
612 	struct netbsd32_iovec iov32, *iovec32p;
613 	caddr_t sg = stackgap_init(p, 0);
614 	int i, error, rv;
615 
616 	NETBSD32TO64_UAP(s);
617 	NETBSD32TO64_UAP(flags);
618 
619 	/*
620 	 * this is annoying:
621 	 *	- copyin the msghdr32 struct
622 	 *	- stackgap_alloc a msghdr struct
623 	 *	- convert msghdr32 to msghdr:
624 	 *		- stackgap_alloc enough space for iovec's
625 	 *		- copy in each iov32, and convert to iov
626 	 *		- copyout converted iov
627 	 *	- copyout converted msghdr
628 	 *	- do real syscall
629 	 *	- copyin the msghdr struct
630 	 *	- convert msghdr to msghdr32
631 	 *		- copyin each iov and convert to iov32
632 	 *		- copyout converted iov32
633 	 *	- copyout converted msghdr32
634 	 */
635 	error = copyin((caddr_t)(u_long)SCARG(uap, msg), &omh32, sizeof(omh32));
636 	if (error)
637 		return (error);
638 
639 	SCARG(&ua, msg) = sgsbp = stackgap_alloc(p, &sg, sizeof(omh));
640 	omh.msg_name = (caddr_t)(u_long)omh32.msg_name;
641 	omh.msg_namelen = omh32.msg_namelen;
642 	omh.msg_iovlen = (size_t)omh32.msg_iovlen;
643 	omh.msg_iov = sgsbp2 = stackgap_alloc(p, &sg, sizeof(struct iovec) * omh.msg_iovlen);
644 	iovec32p = (struct netbsd32_iovec *)(u_long)omh32.msg_iov;
645 	for (i = 0; i < omh.msg_iovlen; i++, sgsbp2++, iovec32p++) {
646 		error = copyin(iovec32p, &iov32, sizeof(iov32));
647 		if (error)
648 			return (error);
649 		iov.iov_base = (struct iovec *)(u_long)iovec32p->iov_base;
650 		iov.iov_len = (size_t)iovec32p->iov_len;
651 		error = copyout(&iov, sgsbp2, sizeof(iov));
652 		if (error)
653 			return (error);
654 	}
655 	omh.msg_accrights = (caddr_t)(u_long)omh32.msg_accrights;
656 	omh.msg_accrightslen = omh32.msg_accrightslen;
657 	error = copyout(&omh, sgsbp, sizeof(omh));
658 	if (error)
659 		return (error);
660 
661 	rv = compat_43_sys_sendmsg(p, &ua, retval);
662 
663 	error = copyin(sgsbp, &omh, sizeof(omh));
664 	if (error)
665 		return error;
666 	omh32.msg_name = (netbsd32_caddr_t)(u_long)omh.msg_name;
667 	omh32.msg_namelen = omh.msg_namelen;
668 	omh32.msg_iovlen = (netbsd32_size_t)omh.msg_iovlen;
669 	iovec32p = (struct netbsd32_iovec *)(u_long)omh32.msg_iov;
670 	sgsbp2 = omh.msg_iov;
671 	for (i = 0; i < omh.msg_iovlen; i++, sgsbp2++, iovec32p++) {
672 		error = copyin(sgsbp2, &iov, sizeof(iov));
673 		if (error)
674 			return (error);
675 		iov32.iov_base = (netbsd32_iovecp_t)(u_long)iov.iov_base;
676 		iov32.iov_len = (netbsd32_size_t)iov.iov_len;
677 		error = copyout(&iov32, iovec32p, sizeof(iov32));
678 		if (error)
679 			return (error);
680 	}
681 	omh32.msg_accrights = (netbsd32_caddr_t)(u_long)omh.msg_accrights;
682 	omh32.msg_accrightslen = omh.msg_accrightslen;
683 
684 	error = copyout(&omh32, (char *)(u_long)SCARG(uap, msg), sizeof(omh32));
685 	if (error)
686 		return error;
687 
688 	return (rv);
689 }
690 
691 int
692 compat_43_netbsd32_orecvfrom(p, v, retval)
693 	struct proc *p;
694 	void *v;
695 	register_t *retval;
696 {
697 	struct compat_43_netbsd32_orecvfrom_args /* {
698 		syscallarg(int) s;
699 		syscallarg(netbsd32_caddr_t) buf;
700 		syscallarg(netbsd32_size_t) len;
701 		syscallarg(int) flags;
702 		syscallarg(netbsd32_caddr_t) from;
703 		syscallarg(netbsd32_intp) fromlenaddr;
704 	} */ *uap = v;
705 	struct compat_43_sys_recvfrom_args ua;
706 
707 	NETBSD32TO64_UAP(s);
708 	NETBSD32TOX64_UAP(buf, caddr_t);
709 	NETBSD32TOX_UAP(len, size_t);
710 	NETBSD32TO64_UAP(flags);
711 	NETBSD32TOX64_UAP(from, caddr_t);
712 	NETBSD32TOP_UAP(fromlenaddr, int);
713 	return (compat_43_sys_recvfrom(p, &ua, retval));
714 }
715 
716 int
717 compat_43_netbsd32_ogetsockname(p, v, retval)
718 	struct proc *p;
719 	void *v;
720 	register_t *retval;
721 {
722 	struct compat_43_netbsd32_ogetsockname_args /* {
723 		syscallarg(int) fdec;
724 		syscallarg(netbsd32_caddr_t) asa;
725 		syscallarg(netbsd32_intp) alen;
726 	} */ *uap = v;
727 	struct compat_43_sys_getsockname_args ua;
728 
729 	NETBSD32TO64_UAP(fdec);
730 	NETBSD32TOX64_UAP(asa, caddr_t);
731 	NETBSD32TOP_UAP(alen, int);
732 	return (compat_43_sys_getsockname(p, &ua, retval));
733 }
734 
735 int
736 compat_43_netbsd32_ogetpeername(p, v, retval)
737 	struct proc *p;
738 	void *v;
739 	register_t *retval;
740 {
741 	struct compat_43_netbsd32_ogetpeername_args /* {
742 		syscallarg(int) fdes;
743 		syscallarg(netbsd32_caddr_t) asa;
744 		syscallarg(netbsd32_intp) alen;
745 	} */ *uap = v;
746 	struct compat_43_sys_getpeername_args ua;
747 
748 	NETBSD32TO64_UAP(fdes);
749 	NETBSD32TOX64_UAP(asa, caddr_t);
750 	NETBSD32TOP_UAP(alen, int);
751 	return (compat_43_sys_getpeername(p, &ua, retval));
752 }
753 
754 /* signal syscalls */
755 int
756 compat_43_netbsd32_osigvec(p, v, retval)
757 	struct proc *p;
758 	void *v;
759 	register_t *retval;
760 {
761 	struct compat_43_netbsd32_osigvec_args /* {
762 		syscallarg(int) signum;
763 		syscallarg(netbsd32_sigvecp_t) nsv;
764 		syscallarg(netbsd32_sigvecp_t) osv;
765 	} */ *uap = v;
766 	struct compat_43_sys_sigvec_args ua;
767 	struct netbsd32_sigvec sv32;
768 	struct sigvec sv, *sgnsvp, *sgosvp;
769 	caddr_t sg = stackgap_init(p, 0);
770 	int rv, error;
771 
772 	NETBSD32TO64_UAP(signum);
773 	if (SCARG(uap, osv))
774 		SCARG(&ua, osv) = sgosvp = stackgap_alloc(p, &sg, sizeof(sv));
775 	else
776 		SCARG(&ua, osv) = NULL;
777 	if (SCARG(uap, nsv)) {
778 		SCARG(&ua, nsv) = sgnsvp = stackgap_alloc(p, &sg, sizeof(sv));
779 		error = copyin((caddr_t)(u_long)SCARG(uap, nsv), &sv32, sizeof(sv32));
780 		if (error)
781 			return (error);
782 		sv.sv_handler = (void *)(u_long)sv32.sv_handler;
783 		sv.sv_mask = sv32.sv_mask;
784 		sv.sv_flags = sv32.sv_flags;
785 		error = copyout(&sv, sgnsvp, sizeof(sv));
786 		if (error)
787 			return (error);
788 	} else
789 		SCARG(&ua, nsv) = NULL;
790 	rv = compat_43_sys_sigvec(p, &ua, retval);
791 	if (rv)
792 		return (rv);
793 
794 	if (SCARG(uap, osv)) {
795 		error = copyin(sgosvp, &sv, sizeof(sv));
796 		if (error)
797 			return (error);
798 		sv32.sv_handler = (netbsd32_sigvecp_t)(u_long)sv.sv_handler;
799 		sv32.sv_mask = sv.sv_mask;
800 		sv32.sv_flags = sv.sv_flags;
801 		error = copyout(&sv32, (caddr_t)(u_long)SCARG(uap, osv), sizeof(sv32));
802 		if (error)
803 			return (error);
804 	}
805 
806 	return (0);
807 }
808 
809 int
810 compat_43_netbsd32_sigblock(p, v, retval)
811 	struct proc *p;
812 	void *v;
813 	register_t *retval;
814 {
815 	struct compat_43_netbsd32_sigblock_args /* {
816 		syscallarg(int) mask;
817 	} */ *uap = v;
818 	struct compat_43_sys_sigblock_args ua;
819 
820 	NETBSD32TO64_UAP(mask);
821 	return (compat_43_sys_sigblock(p, &ua, retval));
822 }
823 
824 int
825 compat_43_netbsd32_sigsetmask(p, v, retval)
826 	struct proc *p;
827 	void *v;
828 	register_t *retval;
829 {
830 	struct compat_43_netbsd32_sigsetmask_args /* {
831 		syscallarg(int) mask;
832 	} */ *uap = v;
833 	struct compat_43_sys_sigsetmask_args ua;
834 
835 	NETBSD32TO64_UAP(mask);
836 	return (compat_43_sys_sigsetmask(p, &ua, retval));
837 }
838 
839 int
840 compat_43_netbsd32_osigstack(p, v, retval)
841 	struct proc *p;
842 	void *v;
843 	register_t *retval;
844 {
845 	struct compat_43_netbsd32_osigstack_args /* {
846 		syscallarg(netbsd32_sigstackp_t) nss;
847 		syscallarg(netbsd32_sigstackp_t) oss;
848 	} */ *uap = v;
849 	struct compat_43_sys_sigstack_args ua;
850 	struct netbsd32_sigstack ss32;
851 	struct sigstack ss, *sgossp, *sgnssp;
852 	caddr_t sg = stackgap_init(p, 0);
853 	int error, rv;
854 
855 	if (SCARG(uap, oss))
856 		SCARG(&ua, oss) = sgossp = stackgap_alloc(p, &sg, sizeof(ss));
857 	else
858 		SCARG(&ua, oss) = NULL;
859 	if (SCARG(uap, nss)) {
860 		SCARG(&ua, nss) = sgnssp = stackgap_alloc(p, &sg, sizeof(ss));
861 		error = copyin((caddr_t)(u_long)SCARG(uap, nss), &ss32, sizeof(ss32));
862 		if (error)
863 			return (error);
864 		ss.ss_sp = (void *)(u_long)ss32.ss_sp;
865 		ss.ss_onstack = ss32.ss_onstack;
866 		error = copyout(&ss, sgnssp, sizeof(ss));
867 		if (error)
868 			return (error);
869 	} else
870 		SCARG(&ua, nss) = NULL;
871 
872 	rv = compat_43_sys_sigstack(p, &ua, retval);
873 	if (rv)
874 		return (rv);
875 
876 	if (SCARG(uap, oss)) {
877 		error = copyin(sgossp, &ss, sizeof(ss));
878 		if (error)
879 			return (error);
880 		ss32.ss_sp = (netbsd32_sigstackp_t)(u_long)ss.ss_sp;
881 		ss32.ss_onstack = ss.ss_onstack;
882 		error = copyout(&ss32, (caddr_t)(u_long)SCARG(uap, oss), sizeof(ss32));
883 		if (error)
884 			return (error);
885 	}
886 
887 	return (0);
888 }
889