1 /* $NetBSD: netbsd32_compat_43.c,v 1.63 2021/11/01 05:07:16 thorpej 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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_43.c,v 1.63 2021/11/01 05:07:16 thorpej Exp $");
31
32 #if defined(_KERNEL_OPT)
33 #include "opt_compat_43.h"
34 #endif
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/module.h>
39 #include <sys/fcntl.h>
40 #include <sys/filedesc.h>
41 #include <sys/mbuf.h>
42 #include <sys/mount.h>
43 #include <sys/namei.h>
44 #include <sys/socket.h>
45 #include <sys/proc.h>
46 #include <sys/socket.h>
47 #include <sys/socketvar.h>
48 #include <sys/stat.h>
49 #include <sys/syscallvar.h>
50 #include <sys/syscallargs.h>
51 #include <sys/time.h>
52 #include <sys/ucred.h>
53 #include <sys/vfs_syscalls.h>
54 #include <uvm/uvm_extern.h>
55 #include <sys/sysctl.h>
56 #include <sys/swap.h>
57
58 #include <compat/netbsd32/netbsd32.h>
59 #include <compat/netbsd32/netbsd32_syscall.h>
60 #include <compat/netbsd32/netbsd32_syscallargs.h>
61
62 #include <compat/sys/stat.h>
63 #include <compat/sys/signal.h>
64 #include <compat/sys/signalvar.h>
65 #include <compat/sys/socket.h>
66
67 #define SYS_DEF(foo) struct foo##_args; \
68 int foo(struct lwp *, const struct foo##_args *, register_t *)
69
70 SYS_DEF(compat_43_netbsd32_sethostid);
71 SYS_DEF(compat_43_netbsd32_killpg);
72 SYS_DEF(compat_43_netbsd32_sigblock);
73 SYS_DEF(compat_43_netbsd32_sigsetmask);
74 #undef SYS_DEF
75
76 static void
netbsd32_from_stat(const struct stat * sb,struct netbsd32_stat43 * sp32)77 netbsd32_from_stat(const struct stat *sb, struct netbsd32_stat43 *sp32)
78 {
79
80 memset(sp32, 0, sizeof(*sp32));
81 sp32->st_dev = sb->st_dev;
82 sp32->st_ino = sb->st_ino;
83 sp32->st_mode = sb->st_mode;
84 sp32->st_nlink = sb->st_nlink;
85 sp32->st_uid = sb->st_uid;
86 sp32->st_gid = sb->st_gid;
87 sp32->st_rdev = sb->st_rdev;
88 sp32->st_size = sb->st_size < (quad_t)1 << 32 ? sb->st_size : -2;
89 sp32->st_atimespec.tv_sec = sb->st_atimespec.tv_sec;
90 sp32->st_atimespec.tv_nsec = sb->st_atimespec.tv_nsec;
91 sp32->st_mtimespec.tv_sec = sb->st_mtimespec.tv_sec;
92 sp32->st_mtimespec.tv_nsec = sb->st_mtimespec.tv_nsec;
93 sp32->st_ctimespec.tv_sec = sb->st_ctimespec.tv_sec;
94 sp32->st_ctimespec.tv_nsec = sb->st_ctimespec.tv_nsec;
95 sp32->st_blksize = sb->st_blksize;
96 sp32->st_blocks = sb->st_blocks;
97 sp32->st_flags = sb->st_flags;
98 sp32->st_gen = sb->st_gen;
99 }
100
101 /* file system syscalls */
102 int
compat_43_netbsd32_ocreat(struct lwp * l,const struct compat_43_netbsd32_ocreat_args * uap,register_t * retval)103 compat_43_netbsd32_ocreat(struct lwp *l, const struct compat_43_netbsd32_ocreat_args *uap, register_t *retval)
104 {
105 /* {
106 syscallarg(const netbsd32_charp) path;
107 syscallarg(mode_t) mode;
108 } */
109 struct sys_open_args ua;
110
111 NETBSD32TOP_UAP(path, const char);
112 NETBSD32TO64_UAP(mode);
113 SCARG(&ua, flags) = O_WRONLY | O_CREAT | O_TRUNC;
114
115 return sys_open(l, &ua, retval);
116 }
117
118 int
compat_43_netbsd32_olseek(struct lwp * l,const struct compat_43_netbsd32_olseek_args * uap,register_t * retval)119 compat_43_netbsd32_olseek(struct lwp *l, const struct compat_43_netbsd32_olseek_args *uap, register_t *retval)
120 {
121 /* {
122 syscallarg(int) fd;
123 syscallarg(netbsd32_long) offset;
124 syscallarg(int) whence;
125 } */
126 struct sys_lseek_args ua;
127
128 SCARG(&ua, fd) = SCARG(uap, fd);
129 NETBSD32TOX_UAP(offset, long);
130 NETBSD32TO64_UAP(whence);
131 /* Maybe offsets > 2^32 should generate an error ? */
132 return sys_lseek(l, &ua, retval);
133 }
134
135 int
compat_43_netbsd32_stat43(struct lwp * l,const struct compat_43_netbsd32_stat43_args * uap,register_t * retval)136 compat_43_netbsd32_stat43(struct lwp *l, const struct compat_43_netbsd32_stat43_args *uap, register_t *retval)
137 {
138 /* {
139 syscallarg(const netbsd32_charp) path;
140 syscallarg(netbsd32_stat43p_t) ub;
141 } */
142 struct stat sb;
143 struct netbsd32_stat43 sb32;
144 int error;
145
146 error = do_sys_stat(SCARG_P32(uap, path), FOLLOW, &sb);
147 if (error == 0) {
148 netbsd32_from_stat(&sb, &sb32);
149 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
150 }
151 return error;
152 }
153
154 int
compat_43_netbsd32_lstat43(struct lwp * l,const struct compat_43_netbsd32_lstat43_args * uap,register_t * retval)155 compat_43_netbsd32_lstat43(struct lwp *l, const struct compat_43_netbsd32_lstat43_args *uap, register_t *retval)
156 {
157 /* {
158 syscallarg(const netbsd32_charp) path;
159 syscallarg(netbsd32_stat43p_t) ub;
160 } */
161 struct stat sb;
162 struct netbsd32_stat43 sb32;
163 int error;
164
165 error = do_sys_stat(SCARG_P32(uap, path), NOFOLLOW, &sb);
166 if (error == 0) {
167 netbsd32_from_stat(&sb, &sb32);
168 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
169 }
170 return error;
171 }
172
173 int
compat_43_netbsd32_fstat43(struct lwp * l,const struct compat_43_netbsd32_fstat43_args * uap,register_t * retval)174 compat_43_netbsd32_fstat43(struct lwp *l, const struct compat_43_netbsd32_fstat43_args *uap, register_t *retval)
175 {
176 /* {
177 syscallarg(int) fd;
178 syscallarg(netbsd32_stat43p_t) sb;
179 } */
180 struct stat sb;
181 struct netbsd32_stat43 sb32;
182 int error;
183
184 error = do_sys_fstat(SCARG(uap, fd), &sb);
185 if (error == 0) {
186 netbsd32_from_stat(&sb, &sb32);
187 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32));
188 }
189 return error;
190 }
191
192 int
compat_43_netbsd32_otruncate(struct lwp * l,const struct compat_43_netbsd32_otruncate_args * uap,register_t * retval)193 compat_43_netbsd32_otruncate(struct lwp *l, const struct compat_43_netbsd32_otruncate_args *uap, register_t *retval)
194 {
195 /* {
196 syscallarg(const netbsd32_charp) path;
197 syscallarg(netbsd32_long) length;
198 } */
199 struct sys_truncate_args ua;
200
201 NETBSD32TOP_UAP(path, const char);
202 NETBSD32TO64_UAP(length);
203 return sys_truncate(l, &ua, retval);
204 }
205
206 int
compat_43_netbsd32_oftruncate(struct lwp * l,const struct compat_43_netbsd32_oftruncate_args * uap,register_t * retval)207 compat_43_netbsd32_oftruncate(struct lwp *l, const struct compat_43_netbsd32_oftruncate_args *uap, register_t *retval)
208 {
209 /* {
210 syscallarg(int) fd;
211 syscallarg(netbsd32_long) length;
212 } */
213 struct sys_ftruncate_args ua;
214
215 NETBSD32TO64_UAP(fd);
216 NETBSD32TO64_UAP(length);
217 return sys_ftruncate(l, &ua, retval);
218 }
219
220 int
compat_43_netbsd32_ogetdirentries(struct lwp * l,const struct compat_43_netbsd32_ogetdirentries_args * uap,register_t * retval)221 compat_43_netbsd32_ogetdirentries(struct lwp *l, const struct compat_43_netbsd32_ogetdirentries_args *uap, register_t *retval)
222 {
223 /* {
224 syscallarg(int) fd;
225 syscallarg(netbsd32_charp) buf;
226 syscallarg(u_int) count;
227 syscallarg(netbsd32_longp) basep;
228 } */
229 struct compat_43_sys_getdirentries_args ua;
230
231 NETBSD32TO64_UAP(fd);
232 NETBSD32TOP_UAP(buf, char);
233 NETBSD32TO64_UAP(count);
234 NETBSD32TOP_UAP(basep, long);
235 return compat_43_sys_getdirentries(l, &ua, retval);
236 }
237
238 /* kernel syscalls */
239 int
compat_43_netbsd32_ogetkerninfo(struct lwp * l,const struct compat_43_netbsd32_ogetkerninfo_args * uap,register_t * retval)240 compat_43_netbsd32_ogetkerninfo(struct lwp *l, const struct compat_43_netbsd32_ogetkerninfo_args *uap, register_t *retval)
241 {
242 /* {
243 syscallarg(int) op;
244 syscallarg(netbsd32_charp) where;
245 syscallarg(netbsd32_intp) size;
246 syscallarg(int) arg;
247 } */
248 struct compat_43_sys_getkerninfo_args ua;
249
250 NETBSD32TO64_UAP(op);
251 NETBSD32TOP_UAP(where, char);
252 NETBSD32TOP_UAP(size, int);
253 NETBSD32TO64_UAP(arg);
254 return compat_43_sys_getkerninfo(l, &ua, retval);
255 }
256
257 int
compat_43_netbsd32_ogethostname(struct lwp * l,const struct compat_43_netbsd32_ogethostname_args * uap,register_t * retval)258 compat_43_netbsd32_ogethostname(struct lwp *l, const struct compat_43_netbsd32_ogethostname_args *uap, register_t *retval)
259 {
260 /* {
261 syscallarg(netbsd32_charp) hostname;
262 syscallarg(u_int) len;
263 } */
264 int name[2];
265 size_t sz;
266
267 name[0] = CTL_KERN;
268 name[1] = KERN_HOSTNAME;
269 sz = SCARG(uap, len);
270 return old_sysctl(&name[0], 2,
271 SCARG_P32(uap, hostname), &sz, 0, 0, l);
272 }
273
274 int
compat_43_netbsd32_osethostname(struct lwp * l,const struct compat_43_netbsd32_osethostname_args * uap,register_t * retval)275 compat_43_netbsd32_osethostname(struct lwp *l, const struct compat_43_netbsd32_osethostname_args *uap, register_t *retval)
276 {
277 /* {
278 syscallarg(netbsd32_charp) hostname;
279 syscallarg(u_int) len;
280 } */
281 int name[2];
282
283 name[0] = CTL_KERN;
284 name[1] = KERN_HOSTNAME;
285 return old_sysctl(&name[0], 2, 0, 0, (char *)SCARG_P32(uap,
286 hostname), SCARG(uap, len), l);
287 }
288
289 int
compat_43_netbsd32_sethostid(struct lwp * l,const struct compat_43_netbsd32_sethostid_args * uap,register_t * retval)290 compat_43_netbsd32_sethostid(struct lwp *l, const struct compat_43_netbsd32_sethostid_args *uap, register_t *retval)
291 {
292 /* {
293 syscallarg(int32_t) hostid;
294 } */
295 struct compat_43_sys_sethostid_args ua;
296
297 NETBSD32TO64_UAP(hostid);
298 return compat_43_sys_sethostid(l, &ua, retval);
299 }
300
301 int
compat_43_netbsd32_ogetrlimit(struct lwp * l,const struct compat_43_netbsd32_ogetrlimit_args * uap,register_t * retval)302 compat_43_netbsd32_ogetrlimit(struct lwp *l, const struct compat_43_netbsd32_ogetrlimit_args *uap, register_t *retval)
303 {
304 /* {
305 syscallarg(int) which;
306 syscallarg(netbsd32_orlimitp_t) rlp;
307 } */
308 struct compat_43_sys_getrlimit_args ua;
309
310 NETBSD32TO64_UAP(which);
311 NETBSD32TOP_UAP(rlp, struct orlimit);
312 return compat_43_sys_getrlimit(l, &ua, retval);
313 }
314
315 int
compat_43_netbsd32_osetrlimit(struct lwp * l,const struct compat_43_netbsd32_osetrlimit_args * uap,register_t * retval)316 compat_43_netbsd32_osetrlimit(struct lwp *l, const struct compat_43_netbsd32_osetrlimit_args *uap, register_t *retval)
317 {
318 /* {
319 syscallarg(int) which;
320 syscallarg(netbsd32_orlimitp_t) rlp;
321 } */
322 struct compat_43_sys_setrlimit_args ua;
323
324 NETBSD32TO64_UAP(which);
325 NETBSD32TOP_UAP(rlp, struct orlimit);
326 return compat_43_sys_setrlimit(l, &ua, retval);
327 }
328
329 int
compat_43_netbsd32_killpg(struct lwp * l,const struct compat_43_netbsd32_killpg_args * uap,register_t * retval)330 compat_43_netbsd32_killpg(struct lwp *l, const struct compat_43_netbsd32_killpg_args *uap, register_t *retval)
331 {
332 /* {
333 syscallarg(int) pgid;
334 syscallarg(int) signum;
335 } */
336 struct compat_43_sys_killpg_args ua;
337
338 NETBSD32TO64_UAP(pgid);
339 NETBSD32TO64_UAP(signum);
340 return compat_43_sys_killpg(l, &ua, retval);
341 }
342
343 /* virtual memory syscalls */
344 int
compat_43_netbsd32_ommap(struct lwp * l,const struct compat_43_netbsd32_ommap_args * uap,register_t * retval)345 compat_43_netbsd32_ommap(struct lwp *l, const struct compat_43_netbsd32_ommap_args *uap, register_t *retval)
346 {
347 /* {
348 syscallarg(netbsd32_voidp) addr;
349 syscallarg(netbsd32_size_t) len;
350 syscallarg(int) prot;
351 syscallarg(int) flags;
352 syscallarg(int) fd;
353 syscallarg(netbsd32_long) pos;
354 } */
355 struct compat_43_sys_mmap_args ua;
356
357 NETBSD32TOP_UAP(addr, void *);
358 NETBSD32TOX_UAP(len, size_t);
359 NETBSD32TO64_UAP(prot);
360 NETBSD32TO64_UAP(flags);
361 NETBSD32TO64_UAP(fd);
362 NETBSD32TOX_UAP(pos, long);
363 return compat_43_sys_mmap(l, &ua, retval);
364 }
365
366 /* network syscalls */
367 int
compat_43_netbsd32_oaccept(struct lwp * l,const struct compat_43_netbsd32_oaccept_args * uap,register_t * retval)368 compat_43_netbsd32_oaccept(struct lwp *l, const struct compat_43_netbsd32_oaccept_args *uap, register_t *retval)
369 {
370 /* {
371 syscallarg(int) s;
372 syscallarg(netbsd32_voidp) name;
373 syscallarg(netbsd32_intp) anamelen;
374 } */
375 struct compat_43_sys_accept_args ua;
376
377 NETBSD32TOX_UAP(s, int);
378 NETBSD32TOP_UAP(name, void *);
379 NETBSD32TOP_UAP(anamelen, int);
380 return compat_43_sys_accept(l, &ua, retval);
381 }
382
383 int
compat_43_netbsd32_osend(struct lwp * l,const struct compat_43_netbsd32_osend_args * uap,register_t * retval)384 compat_43_netbsd32_osend(struct lwp *l, const struct compat_43_netbsd32_osend_args *uap, register_t *retval)
385 {
386 /* {
387 syscallarg(int) s;
388 syscallarg(netbsd32_voidp) buf;
389 syscallarg(int) len;
390 syscallarg(int) flags;
391 } */
392 struct compat_43_sys_send_args ua;
393
394 NETBSD32TO64_UAP(s);
395 NETBSD32TOP_UAP(buf, void *);
396 NETBSD32TO64_UAP(len);
397 NETBSD32TO64_UAP(flags);
398 return compat_43_sys_send(l, &ua, retval);
399 }
400
401 int
compat_43_netbsd32_orecv(struct lwp * l,const struct compat_43_netbsd32_orecv_args * uap,register_t * retval)402 compat_43_netbsd32_orecv(struct lwp *l, const struct compat_43_netbsd32_orecv_args *uap, register_t *retval)
403 {
404 /* {
405 syscallarg(int) s;
406 syscallarg(netbsd32_voidp) buf;
407 syscallarg(int) len;
408 syscallarg(int) flags;
409 } */
410 struct compat_43_sys_recv_args ua;
411
412 NETBSD32TO64_UAP(s);
413 NETBSD32TOP_UAP(buf, void *);
414 NETBSD32TO64_UAP(len);
415 NETBSD32TO64_UAP(flags);
416 return compat_43_sys_recv(l, &ua, retval);
417 }
418
419 /*
420 * This is a brutal clone of compat_43_sys_recvmsg().
421 */
422 int
compat_43_netbsd32_orecvmsg(struct lwp * l,const struct compat_43_netbsd32_orecvmsg_args * uap,register_t * retval)423 compat_43_netbsd32_orecvmsg(struct lwp *l, const struct compat_43_netbsd32_orecvmsg_args *uap, register_t *retval)
424 {
425 /* {
426 syscallarg(int) s;
427 syscallarg(netbsd32_omsghdrp_t) msg;
428 syscallarg(int) flags;
429 } */
430 struct netbsd32_omsghdr omsg;
431 struct msghdr msg;
432 struct mbuf *from, *control;
433 struct iovec *iov, aiov[UIO_SMALLIOV];
434 int error;
435
436 error = copyin(SCARG_P32(uap, msg), &omsg, sizeof(omsg));
437 if (error)
438 return error;
439
440 if (NETBSD32PTR64(omsg.msg_accrights) == NULL)
441 omsg.msg_accrightslen = 0;
442 /* it was this way in 4.4BSD */
443 if (omsg.msg_accrightslen > MLEN)
444 return EINVAL;
445
446 iov = netbsd32_get_iov(NETBSD32PTR64(omsg.msg_iov), omsg.msg_iovlen,
447 aiov, __arraycount(aiov));
448 if (iov == NULL)
449 return EFAULT;
450
451 msg.msg_name = NETBSD32PTR64(omsg.msg_name);
452 msg.msg_namelen = omsg.msg_namelen;
453 msg.msg_iovlen = omsg.msg_iovlen;
454 msg.msg_iov = iov;
455 msg.msg_flags = SCARG(uap, flags) & MSG_USERFLAGS;
456
457 error = do_sys_recvmsg(l, SCARG(uap, s), &msg, &from,
458 NETBSD32PTR64(omsg.msg_accrights) != NULL ? &control : NULL,
459 retval);
460 if (error != 0)
461 goto out;
462
463 /*
464 * If there is any control information and it's SCM_RIGHTS,
465 * pass it back to the program.
466 * XXX: maybe there can be more than one chunk of control data?
467 */
468 if (NETBSD32PTR64(omsg.msg_accrights) != NULL && control != NULL) {
469 struct cmsghdr *cmsg = mtod(control, void *);
470
471 if (cmsg->cmsg_level == SOL_SOCKET
472 && cmsg->cmsg_type == SCM_RIGHTS
473 && cmsg->cmsg_len < omsg.msg_accrightslen
474 && copyout(CMSG_DATA(cmsg),
475 NETBSD32PTR64(omsg.msg_accrights),
476 cmsg->cmsg_len) == 0) {
477 omsg.msg_accrightslen = cmsg->cmsg_len;
478 free_control_mbuf(l, control, control->m_next);
479 } else {
480 omsg.msg_accrightslen = 0;
481 free_control_mbuf(l, control, control);
482 }
483 } else
484 omsg.msg_accrightslen = 0;
485
486 if (from != NULL)
487 /* convert from sockaddr sa_family to osockaddr one here */
488 mtod(from, struct osockaddr *)->sa_family =
489 mtod(from, struct sockaddr *)->sa_family;
490
491 error = copyout_sockname(NETBSD32PTR64(omsg.msg_name),
492 &omsg.msg_namelen, 0, from);
493 if (from != NULL)
494 m_free(from);
495
496 if (error != 0)
497 error = copyout(&omsg, SCARG_P32(uap, msg), sizeof(omsg));
498 out:
499 if (iov != aiov) {
500 kmem_free(iov, omsg.msg_iovlen * sizeof(*iov));
501 }
502 return error;
503 }
504
505 int
compat_43_netbsd32_osendmsg(struct lwp * l,const struct compat_43_netbsd32_osendmsg_args * uap,register_t * retval)506 compat_43_netbsd32_osendmsg(struct lwp *l, const struct compat_43_netbsd32_osendmsg_args *uap, register_t *retval)
507 {
508 /* {
509 syscallarg(int) s;
510 syscallarg(netbsd32_voidp) msg;
511 syscallarg(int) flags;
512 } */
513 struct iovec *iov, aiov[UIO_SMALLIOV];
514 struct netbsd32_omsghdr omsg;
515 struct msghdr msg;
516 struct mbuf *nam;
517 struct osockaddr *osa;
518 struct sockaddr *sa;
519 int error;
520
521 error = copyin(SCARG_P32(uap, msg), &omsg, sizeof(omsg));
522 if (error != 0)
523 return error;
524
525 iov = netbsd32_get_iov(NETBSD32PTR64(omsg.msg_iov), omsg.msg_iovlen,
526 aiov, __arraycount(aiov));
527 if (iov == NULL)
528 return EFAULT;
529
530 msg.msg_iovlen = omsg.msg_iovlen;
531 msg.msg_iov = iov;
532 msg.msg_flags = MSG_NAMEMBUF;
533
534 error = sockargs(&nam, NETBSD32PTR64(omsg.msg_name), omsg.msg_namelen,
535 UIO_USERSPACE, MT_SONAME);
536 if (error != 0)
537 goto out;
538
539 sa = mtod(nam, void *);
540 osa = mtod(nam, void *);
541 sa->sa_family = osa->sa_family;
542 sa->sa_len = omsg.msg_namelen;
543
544 msg.msg_name = nam;
545 msg.msg_namelen = omsg.msg_namelen;
546 error = compat43_set_accrights(&msg, NETBSD32PTR64(omsg.msg_accrights),
547 omsg.msg_accrightslen);
548 if (error != 0) {
549 m_free(nam);
550 goto out;
551 }
552
553 error = do_sys_sendmsg(l, SCARG(uap, s), &msg, SCARG(uap, flags),
554 retval);
555
556 out:
557 if (iov != aiov)
558 kmem_free(iov, omsg.msg_iovlen * sizeof(*iov));
559 return error;
560 }
561
562 int
compat_43_netbsd32_orecvfrom(struct lwp * l,const struct compat_43_netbsd32_orecvfrom_args * uap,register_t * retval)563 compat_43_netbsd32_orecvfrom(struct lwp *l, const struct compat_43_netbsd32_orecvfrom_args *uap, register_t *retval)
564 {
565 /* {
566 syscallarg(int) s;
567 syscallarg(netbsd32_voidp) buf;
568 syscallarg(netbsd32_size_t) len;
569 syscallarg(int) flags;
570 syscallarg(netbsd32_voidp) from;
571 syscallarg(netbsd32_intp) fromlenaddr;
572 } */
573 struct compat_43_sys_recvfrom_args ua;
574
575 NETBSD32TO64_UAP(s);
576 NETBSD32TOP_UAP(buf, void *);
577 NETBSD32TOX_UAP(len, size_t);
578 NETBSD32TO64_UAP(flags);
579 NETBSD32TOP_UAP(from, void *);
580 NETBSD32TOP_UAP(fromlenaddr, int);
581 return compat_43_sys_recvfrom(l, &ua, retval);
582 }
583
584 int
compat_43_netbsd32_ogetsockname(struct lwp * l,const struct compat_43_netbsd32_ogetsockname_args * uap,register_t * retval)585 compat_43_netbsd32_ogetsockname(struct lwp *l, const struct compat_43_netbsd32_ogetsockname_args *uap, register_t *retval)
586 {
587 /* {
588 syscallarg(int) fdec;
589 syscallarg(netbsd32_voidp) asa;
590 syscallarg(netbsd32_intp) alen;
591 } */
592 struct compat_43_sys_getsockname_args ua;
593
594 NETBSD32TO64_UAP(fdec);
595 NETBSD32TOP_UAP(asa, void *);
596 NETBSD32TOP_UAP(alen, int *);
597 return compat_43_sys_getsockname(l, &ua, retval);
598 }
599
600 int
compat_43_netbsd32_ogetpeername(struct lwp * l,const struct compat_43_netbsd32_ogetpeername_args * uap,register_t * retval)601 compat_43_netbsd32_ogetpeername(struct lwp *l, const struct compat_43_netbsd32_ogetpeername_args *uap, register_t *retval)
602 {
603 /* {
604 syscallarg(int) fdes;
605 syscallarg(netbsd32_voidp) asa;
606 syscallarg(netbsd32_intp) alen;
607 } */
608 struct compat_43_sys_getpeername_args ua;
609
610 NETBSD32TO64_UAP(fdes);
611 NETBSD32TOP_UAP(asa, void *);
612 NETBSD32TOP_UAP(alen, int *);
613 return compat_43_sys_getpeername(l, &ua, retval);
614 }
615
616 /* signal syscalls */
617 int
compat_43_netbsd32_osigvec(struct lwp * l,const struct compat_43_netbsd32_osigvec_args * uap,register_t * retval)618 compat_43_netbsd32_osigvec(struct lwp *l, const struct compat_43_netbsd32_osigvec_args *uap, register_t *retval)
619 {
620 /* {
621 syscallarg(int) signum;
622 syscallarg(netbsd32_sigvecp_t) nsv;
623 syscallarg(netbsd32_sigvecp_t) osv;
624 } */
625 struct netbsd32_sigvec sv32;
626 struct sigaction nsa, osa;
627 int error;
628
629 if (SCARG(uap, signum) >= 32)
630 return EINVAL;
631
632 if (SCARG_P32(uap, nsv)) {
633 error = copyin(SCARG_P32(uap, nsv), &sv32, sizeof(sv32));
634 if (error)
635 return error;
636 nsa.sa_handler = NETBSD32PTR64(sv32.sv_handler);
637 nsa.sa_mask.__bits[0] = sv32.sv_mask;
638 nsa.sa_mask.__bits[1] = 0;
639 nsa.sa_mask.__bits[2] = 0;
640 nsa.sa_mask.__bits[3] = 0;
641 nsa.sa_flags = sv32.sv_flags ^ SA_RESTART;
642 error = sigaction1(l, SCARG(uap, signum), &nsa, &osa, NULL, 0);
643 } else
644 error = sigaction1(l, SCARG(uap, signum), NULL, &osa, NULL, 0);
645 if (error)
646 return error;
647
648 if (SCARG_P32(uap, osv)) {
649 memset(&sv32, 0, sizeof(sv32));
650 NETBSD32PTR32(sv32.sv_handler, osa.sa_handler);
651 sv32.sv_mask = osa.sa_mask.__bits[0];
652 sv32.sv_flags = osa.sa_flags ^ SA_RESTART;
653 error = copyout(&sv32, SCARG_P32(uap, osv), sizeof(sv32));
654 }
655
656 return error;
657 }
658
659 int
compat_43_netbsd32_sigblock(struct lwp * l,const struct compat_43_netbsd32_sigblock_args * uap,register_t * retval)660 compat_43_netbsd32_sigblock(struct lwp *l, const struct compat_43_netbsd32_sigblock_args *uap, register_t *retval)
661 {
662 /* {
663 syscallarg(int) mask;
664 } */
665 struct compat_43_sys_sigblock_args ua;
666
667 NETBSD32TO64_UAP(mask);
668 return compat_43_sys_sigblock(l, &ua, retval);
669 }
670
671 int
compat_43_netbsd32_sigsetmask(struct lwp * l,const struct compat_43_netbsd32_sigsetmask_args * uap,register_t * retval)672 compat_43_netbsd32_sigsetmask(struct lwp *l, const struct compat_43_netbsd32_sigsetmask_args *uap, register_t *retval)
673 {
674 /* {
675 syscallarg(int) mask;
676 } */
677 struct compat_43_sys_sigsetmask_args ua;
678
679 NETBSD32TO64_UAP(mask);
680 return compat_43_sys_sigsetmask(l, &ua, retval);
681 }
682
683 int
compat_43_netbsd32_osigstack(struct lwp * l,const struct compat_43_netbsd32_osigstack_args * uap,register_t * retval)684 compat_43_netbsd32_osigstack(struct lwp *l, const struct compat_43_netbsd32_osigstack_args *uap, register_t *retval)
685 {
686 /* {
687 syscallarg(netbsd32_sigstackp_t) nss;
688 syscallarg(netbsd32_sigstackp_t) oss;
689 } */
690 struct netbsd32_sigstack ss32;
691 stack_t nsa, osa;
692 int error;
693
694 if (SCARG_P32(uap, nss)) {
695 error = copyin(SCARG_P32(uap, nss), &ss32, sizeof(ss32));
696 if (error)
697 return error;
698 nsa.ss_sp = NETBSD32PTR64(ss32.ss_sp);
699 nsa.ss_size = SIGSTKSZ; /* Use the recommended size */
700 nsa.ss_flags = ss32.ss_onstack ? SS_ONSTACK : 0;
701 error = sigaltstack1(l, &nsa, &osa);
702 } else
703 error = sigaltstack1(l, NULL, &osa);
704 if (error)
705 return error;
706
707 if (SCARG_P32(uap, oss)) {
708 memset(&ss32, 0, sizeof(ss32));
709 NETBSD32PTR32(ss32.ss_sp, osa.ss_sp);
710 ss32.ss_onstack = (osa.ss_flags & SS_ONSTACK) != 0;
711 error = copyout(&ss32, SCARG_P32(uap, oss), sizeof(ss32));
712 }
713
714 return error;
715 }
716
717 static struct syscall_package compat_netbsd32_43_syscalls[] = {
718 { NETBSD32_SYS_compat_43_netbsd32_ocreat, 0,
719 (sy_call_t *)compat_43_netbsd32_ocreat },
720 { NETBSD32_SYS_compat_43_netbsd32_olseek, 0,
721 (sy_call_t *)compat_43_netbsd32_olseek },
722 { NETBSD32_SYS_compat_43_netbsd32_stat43, 0,
723 (sy_call_t *)compat_43_netbsd32_stat43 },
724 { NETBSD32_SYS_compat_43_netbsd32_lstat43, 0,
725 (sy_call_t *)compat_43_netbsd32_lstat43 },
726 { NETBSD32_SYS_compat_43_netbsd32_fstat43, 0,
727 (sy_call_t *)compat_43_netbsd32_fstat43 },
728 { NETBSD32_SYS_compat_43_netbsd32_otruncate, 0,
729 (sy_call_t *)compat_43_netbsd32_otruncate },
730 { NETBSD32_SYS_compat_43_netbsd32_oftruncate, 0,
731 (sy_call_t *)compat_43_netbsd32_oftruncate },
732 { NETBSD32_SYS_compat_43_netbsd32_ogetdirentries, 0,
733 (sy_call_t *)compat_43_netbsd32_ogetdirentries },
734 { NETBSD32_SYS_compat_43_netbsd32_ogetkerninfo, 0,
735 (sy_call_t *)compat_43_netbsd32_ogetkerninfo },
736 { NETBSD32_SYS_compat_43_netbsd32_ogethostname, 0,
737 (sy_call_t *)compat_43_netbsd32_ogethostname },
738 { NETBSD32_SYS_compat_43_netbsd32_osethostname, 0,
739 (sy_call_t *)compat_43_netbsd32_osethostname },
740 { NETBSD32_SYS_compat_43_netbsd32_sethostid, 0,
741 (sy_call_t *)compat_43_netbsd32_sethostid },
742 { NETBSD32_SYS_compat_43_netbsd32_ogetrlimit, 0,
743 (sy_call_t *)compat_43_netbsd32_ogetrlimit },
744 { NETBSD32_SYS_compat_43_netbsd32_osetrlimit, 0,
745 (sy_call_t *)compat_43_netbsd32_osetrlimit },
746 { NETBSD32_SYS_compat_43_netbsd32_killpg, 0,
747 (sy_call_t *)compat_43_netbsd32_killpg },
748 { NETBSD32_SYS_compat_43_netbsd32_ommap, 0,
749 (sy_call_t *)compat_43_netbsd32_ommap },
750 { NETBSD32_SYS_compat_43_netbsd32_oaccept, 0,
751 (sy_call_t *)compat_43_netbsd32_oaccept },
752 { NETBSD32_SYS_compat_43_netbsd32_osend, 0,
753 (sy_call_t *)compat_43_netbsd32_osend },
754 { NETBSD32_SYS_compat_43_netbsd32_orecv, 0,
755 (sy_call_t *)compat_43_netbsd32_orecv },
756 { NETBSD32_SYS_compat_43_netbsd32_orecvmsg, 0,
757 (sy_call_t *)compat_43_netbsd32_orecvmsg },
758 { NETBSD32_SYS_compat_43_netbsd32_osendmsg, 0,
759 (sy_call_t *)compat_43_netbsd32_osendmsg },
760 { NETBSD32_SYS_compat_43_netbsd32_orecvfrom, 0,
761 (sy_call_t *)compat_43_netbsd32_orecvfrom },
762 { NETBSD32_SYS_compat_43_netbsd32_ogetsockname, 0,
763 (sy_call_t *)compat_43_netbsd32_ogetsockname },
764 { NETBSD32_SYS_compat_43_netbsd32_ogetpeername, 0,
765 (sy_call_t *)compat_43_netbsd32_ogetpeername },
766 { NETBSD32_SYS_compat_43_netbsd32_osigvec, 0,
767 (sy_call_t *)compat_43_netbsd32_osigvec },
768 { NETBSD32_SYS_compat_43_netbsd32_sigblock, 0,
769 (sy_call_t *)compat_43_netbsd32_sigblock },
770 { NETBSD32_SYS_compat_43_netbsd32_sigsetmask, 0,
771 (sy_call_t *)compat_43_netbsd32_sigsetmask },
772 { NETBSD32_SYS_compat_43_netbsd32_osigstack, 0,
773 (sy_call_t *)compat_43_netbsd32_osigstack },
774 /*
775 * These syscalls are provided by emul_netbsd compat_43 code, but their
776 * entry points must still be loaded in the emul_netbsd32 disatch table
777 */
778 { NETBSD32_SYS_compat_43_ogetpagesize, 0,
779 (sy_call_t *)compat_43_sys_getpagesize },
780 { NETBSD32_SYS_compat_43_ogetdtablesize, 0,
781 (sy_call_t *)compat_43_sys_getdtablesize},
782 { NETBSD32_SYS_compat_43_ogethostid, 0,
783 (sy_call_t *)compat_43_sys_gethostid },
784 { NETBSD32_SYS_compat_43_owait, 0,
785 (sy_call_t *)compat_43_sys_wait },
786 /*
787 * Skip oquota since it isn't part of compat_43
788 * { NETBSD32_SYS_compat_43_oquota, 0,
789 * (sy_call_t *)compat_43_sys_quota },
790 */
791
792 /* End of compat_43 syscalls */
793
794 { 0, 0, NULL }
795 };
796
797 MODULE(MODULE_CLASS_EXEC, compat_netbsd32_43, "compat_netbsd32,compat_43");
798
799 static int
compat_netbsd32_43_modcmd(modcmd_t cmd,void * arg)800 compat_netbsd32_43_modcmd(modcmd_t cmd, void *arg)
801 {
802
803 switch (cmd) {
804 case MODULE_CMD_INIT:
805 return syscall_establish(&emul_netbsd32,
806 compat_netbsd32_43_syscalls);
807
808 case MODULE_CMD_FINI:
809 return syscall_disestablish(&emul_netbsd32,
810 compat_netbsd32_43_syscalls);
811
812 default:
813 return ENOTTY;
814 }
815 }
816