1 /* $NetBSD: netbsd32_signal.c,v 1.55 2024/11/22 10:41:50 mlelstv 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_signal.c,v 1.55 2024/11/22 10:41:50 mlelstv Exp $");
31
32 #if defined(_KERNEL_OPT)
33 #include "opt_ktrace.h"
34 #endif
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/mount.h>
39 #include <sys/stat.h>
40 #include <sys/time.h>
41 #include <sys/signalvar.h>
42 #include <sys/ktrace.h>
43 #include <sys/proc.h>
44 #include <sys/wait.h>
45 #include <sys/dirent.h>
46 #include <sys/module.h>
47 #include <sys/exec.h>
48
49 #include <uvm/uvm_extern.h>
50
51 #include <compat/netbsd32/netbsd32.h>
52 #include <compat/netbsd32/netbsd32_conv.h>
53 #include <compat/netbsd32/netbsd32_exec.h>
54 #include <compat/netbsd32/netbsd32_syscallargs.h>
55
56 #include <compat/sys/signal.h>
57 #include <compat/sys/signalvar.h>
58 #include <compat/sys/siginfo.h>
59 #include <compat/sys/ucontext.h>
60 #include <compat/common/compat_sigaltstack.h>
61
62 int
netbsd32_sigaction(struct lwp * l,const struct netbsd32_sigaction_args * uap,register_t * retval)63 netbsd32_sigaction(struct lwp *l, const struct netbsd32_sigaction_args *uap, register_t *retval)
64 {
65 /* {
66 syscallarg(int) signum;
67 syscallarg(const netbsd32_sigactionp_t) nsa;
68 syscallarg(netbsd32_sigactionp_t) osa;
69 } */
70 struct sigaction nsa, osa;
71 struct netbsd32_sigaction13 *sa32p, sa32;
72 int error;
73
74 if (SCARG_P32(uap, nsa)) {
75 sa32p = SCARG_P32(uap, nsa);
76 if (copyin(sa32p, &sa32, sizeof(sa32)))
77 return EFAULT;
78 nsa.sa_handler = (void *)NETBSD32PTR64(sa32.netbsd32_sa_handler);
79 memset(&nsa.sa_mask, 0, sizeof(nsa.sa_mask));
80 nsa.sa_mask.__bits[0] = sa32.netbsd32_sa_mask;
81 nsa.sa_flags = sa32.netbsd32_sa_flags;
82 }
83 error = sigaction1(l, SCARG(uap, signum),
84 SCARG_P32(uap, nsa) ? &nsa : 0,
85 SCARG_P32(uap, osa) ? &osa : 0,
86 NULL, 0);
87
88 if (error)
89 return error;
90
91 if (SCARG_P32(uap, osa)) {
92 memset(&sa32, 0, sizeof(sa32));
93 NETBSD32PTR32(sa32.netbsd32_sa_handler, osa.sa_handler);
94 sa32.netbsd32_sa_mask = osa.sa_mask.__bits[0];
95 sa32.netbsd32_sa_flags = osa.sa_flags;
96 sa32p = SCARG_P32(uap, osa);
97 if (copyout(&sa32, sa32p, sizeof(sa32)))
98 return EFAULT;
99 }
100
101 return 0;
102 }
103
104 int
netbsd32___sigaltstack14(struct lwp * l,const struct netbsd32___sigaltstack14_args * uap,register_t * retval)105 netbsd32___sigaltstack14(struct lwp *l, const struct netbsd32___sigaltstack14_args *uap, register_t *retval)
106 {
107 /* {
108 syscallarg(const netbsd32_sigaltstackp_t) nss;
109 syscallarg(netbsd32_sigaltstackp_t) oss;
110 } */
111 compat_sigaltstack(uap, netbsd32_sigaltstack, SS_ONSTACK, SS_DISABLE);
112 }
113
114 /* ARGSUSED */
115 int
netbsd32___sigaction14(struct lwp * l,const struct netbsd32___sigaction14_args * uap,register_t * retval)116 netbsd32___sigaction14(struct lwp *l, const struct netbsd32___sigaction14_args *uap, register_t *retval)
117 {
118 /* {
119 syscallarg(int) signum;
120 syscallarg(const struct sigaction *) nsa;
121 syscallarg(struct sigaction *) osa;
122 } */
123 struct netbsd32_sigaction sa32;
124 struct sigaction nsa, osa;
125 int error;
126
127 if (SCARG_P32(uap, nsa)) {
128 error = copyin(SCARG_P32(uap, nsa), &sa32, sizeof(sa32));
129 if (error)
130 return error;
131 nsa.sa_handler = NETBSD32PTR64(sa32.netbsd32_sa_handler);
132 nsa.sa_mask = sa32.netbsd32_sa_mask;
133 nsa.sa_flags = sa32.netbsd32_sa_flags;
134 }
135 error = sigaction1(l, SCARG(uap, signum),
136 SCARG_P32(uap, nsa) ? &nsa : 0,
137 SCARG_P32(uap, osa) ? &osa : 0,
138 NULL, 0);
139 if (error)
140 return error;
141 if (SCARG_P32(uap, osa)) {
142 memset(&sa32, 0, sizeof(sa32));
143 NETBSD32PTR32(sa32.netbsd32_sa_handler, osa.sa_handler);
144 sa32.netbsd32_sa_mask = osa.sa_mask;
145 sa32.netbsd32_sa_flags = osa.sa_flags;
146 error = copyout(&sa32, SCARG_P32(uap, osa), sizeof(sa32));
147 if (error)
148 return error;
149 }
150 return 0;
151 }
152
153 /* ARGSUSED */
154 int
netbsd32___sigaction_sigtramp(struct lwp * l,const struct netbsd32___sigaction_sigtramp_args * uap,register_t * retval)155 netbsd32___sigaction_sigtramp(struct lwp *l, const struct netbsd32___sigaction_sigtramp_args *uap, register_t *retval)
156 {
157 /* {
158 syscallarg(int) signum;
159 syscallarg(const netbsd32_sigactionp_t) nsa;
160 syscallarg(netbsd32_sigactionp_t) osa;
161 syscallarg(netbsd32_voidp) tramp;
162 syscallarg(int) vers;
163 } */
164 struct netbsd32_sigaction sa32;
165 struct sigaction nsa, osa;
166 int error, vers;
167
168 if (SCARG_P32(uap, nsa)) {
169 error = copyin(SCARG_P32(uap, nsa), &sa32, sizeof(sa32));
170 if (error)
171 return error;
172 nsa.sa_handler = NETBSD32PTR64(sa32.netbsd32_sa_handler);
173 nsa.sa_mask = sa32.netbsd32_sa_mask;
174 nsa.sa_flags = sa32.netbsd32_sa_flags;
175 }
176 vers = SCARG(uap, vers);
177 #ifndef __HAVE_MD_NETBSD32_SENDSIG /* XXX paying for yesterday's sins */
178 if (vers < __SIGTRAMP_SIGINFO_VERSION_MIN) {
179 /*
180 * sigaction1() doesn't enforce sigcontext-ness for
181 * __SIGTRAMP_SIGCODE_VERSION because it might be
182 * a foreign emulation. However, we know these are
183 * native NetBSD 32-bit binaries, so we do.
184 */
185 #ifdef __HAVE_STRUCT_SIGCONTEXT
186 struct proc *p = l->l_proc;
187 bool sigcontext_valid;
188
189 /*
190 * We need to ensure the compat_netbsd32_16 module
191 * is loaded, because sigaction1() gives a free pass
192 * to processes marked PK_32 (it can't be sure which
193 * 32-bit compat module is needed).
194 */
195 if ((p->p_lflag & PL_SIGCOMPAT) == 0) {
196 kernconfig_lock();
197 (void)module_autoload("compat_netbsd32_16",
198 MODULE_CLASS_ANY);
199 sigcontext_valid = netbsd32_sendsig_sigcontext_16_hook.hooked;
200 mutex_enter(&proc_lock);
201 /*
202 * Prevent unload of compat module while
203 * this process remains.
204 */
205 p->p_lflag |= PL_SIGCOMPAT;
206 mutex_exit(&proc_lock);
207 kernconfig_unlock();
208 } else {
209 /*
210 * Module is already loaded and locked in memory
211 */
212 sigcontext_valid = netbsd32_sendsig_sigcontext_16_hook.hooked;
213 }
214 if (!sigcontext_valid) {
215 return EINVAL;
216 }
217 // #else /* ! __HAVE_STRUCT_SIGCONTEXT */
218 // return EINVAL;
219 #endif /* __HAVE_STRUCT_SIGCONTEXT */
220 }
221 #endif /* __HAVE_MD_NETBSD32_SENDSIG */
222 error = sigaction1(l, SCARG(uap, signum),
223 SCARG_P32(uap, nsa) ? &nsa : 0,
224 SCARG_P32(uap, osa) ? &osa : 0,
225 SCARG_P32(uap, tramp), vers);
226 if (error)
227 return error;
228 if (SCARG_P32(uap, osa)) {
229 memset(&sa32, 0, sizeof(sa32));
230 NETBSD32PTR32(sa32.netbsd32_sa_handler, osa.sa_handler);
231 sa32.netbsd32_sa_mask = osa.sa_mask;
232 sa32.netbsd32_sa_flags = osa.sa_flags;
233 error = copyout(&sa32, SCARG_P32(uap, osa), sizeof(sa32));
234 if (error)
235 return error;
236 }
237 return 0;
238 }
239
240 #ifndef __HAVE_MD_NETBSD32_SENDSIG /* XXX paying for yesterday's sins */
241 #ifdef __HAVE_STRUCT_SIGCONTEXT
242 struct netbsd32_sendsig_sigcontext_16_hook_t netbsd32_sendsig_sigcontext_16_hook;
243 #endif
244
245 void
netbsd32_sendsig(const struct ksiginfo * ksi,const sigset_t * mask)246 netbsd32_sendsig(const struct ksiginfo *ksi, const sigset_t *mask)
247 {
248 struct sigacts *sa;
249 int sig;
250
251 sig = ksi->ksi_signo;
252 sa = curproc->p_sigacts;
253
254 switch (sa->sa_sigdesc[sig].sd_vers) {
255 #ifdef __HAVE_STRUCT_SIGCONTEXT
256 case __SIGTRAMP_SIGCODE_VERSION:
257 case __SIGTRAMP_SIGCONTEXT_VERSION_MIN ...
258 __SIGTRAMP_SIGCONTEXT_VERSION_MAX:
259 /* Compat for 1.6 and earlier. */
260 MODULE_HOOK_CALL_VOID(netbsd32_sendsig_sigcontext_16_hook,
261 (ksi, mask), break);
262 return;
263 #endif /* __HAVE_STRUCT_SIGCONTEXT */
264 case __SIGTRAMP_SIGINFO_VERSION_MIN ...
265 __SIGTRAMP_SIGINFO_VERSION_MAX:
266 netbsd32_sendsig_siginfo(ksi, mask);
267 return;
268 default:
269 break;
270 }
271
272 printf("%s: bad version %d\n", __func__, sa->sa_sigdesc[sig].sd_vers);
273 sigexit(curlwp, SIGILL);
274 }
275 #endif /* __HAVE_MD_NETBSD32_SENDSIG */
276
277 void
netbsd32_ksi32_to_ksi(struct _ksiginfo * si,const struct __ksiginfo32 * si32)278 netbsd32_ksi32_to_ksi(struct _ksiginfo *si, const struct __ksiginfo32 *si32)
279 {
280 size_t i;
281
282 memset(si, 0, sizeof (*si));
283 si->_signo = si32->_signo;
284 si->_code = si32->_code;
285 si->_errno = si32->_errno;
286
287 if (si32->_code == SI_NOINFO)
288 return;
289 else if (si32->_code <= 0) /* codes described in siginfo(2) */
290 goto fill_rt;
291
292 switch (si32->_signo) {
293 case SIGILL:
294 case SIGFPE:
295 case SIGBUS:
296 case SIGSEGV:
297 fill_fault:
298 si->_reason._fault._addr =
299 NETBSD32IPTR64(si32->_reason._fault._addr);
300 si->_reason._fault._trap = si32->_reason._fault._trap;
301 break;
302 case SIGTRAP:
303 switch (si32->_code) {
304 case TRAP_EXEC:
305 break;
306 case TRAP_CHLD:
307 case TRAP_LWP:
308 si->_reason._ptrace_state._pe_report_event =
309 si32->_reason._ptrace_state._pe_report_event;
310 CTASSERT(sizeof(si->_reason._ptrace_state._option._pe_other_pid) ==
311 sizeof(si->_reason._ptrace_state._option._pe_lwp));
312 si->_reason._ptrace_state._option._pe_other_pid =
313 si32->_reason._ptrace_state._option._pe_other_pid;
314 break;
315 case TRAP_SCE:
316 case TRAP_SCX:
317 si->_reason._syscall._sysnum =
318 si32->_reason._syscall._sysnum;
319 si->_reason._syscall._retval[0] =
320 si32->_reason._syscall._retval[0];
321 si->_reason._syscall._retval[1] =
322 si32->_reason._syscall._retval[1];
323 si->_reason._syscall._error =
324 si32->_reason._syscall._error;
325 for (i = 0;
326 i < __arraycount(si->_reason._syscall._args); i++)
327 si->_reason._syscall._args[i] =
328 si32->_reason._syscall._args[i];
329 break;
330 default:
331 goto fill_fault;
332 }
333 break;
334 case SIGALRM:
335 case SIGVTALRM:
336 case SIGPROF:
337 default: /* see sigqueue() and kill1() */
338 fill_rt:
339 si->_reason._rt._pid = si32->_reason._rt._pid;
340 si->_reason._rt._uid = si32->_reason._rt._uid;
341 si->_reason._rt._value.sival_int =
342 si32->_reason._rt._value.sival_int;
343 break;
344 case SIGURG:
345 case SIGIO:
346 si->_reason._poll._band = si32->_reason._poll._band;
347 si->_reason._poll._fd = si32->_reason._poll._fd;
348 break;
349 case SIGCHLD:
350 si->_reason._child._pid = si32->_reason._child._pid;
351 si->_reason._child._uid = si32->_reason._child._uid;
352 si->_reason._child._status = si32->_reason._child._status;
353 si->_reason._child._utime = si32->_reason._child._utime;
354 si->_reason._child._stime = si32->_reason._child._stime;
355 break;
356 }
357 }
358
359 void
netbsd32_si32_to_si(siginfo_t * si,const siginfo32_t * si32)360 netbsd32_si32_to_si(siginfo_t *si, const siginfo32_t *si32)
361 {
362
363 memset(si, 0, sizeof (*si));
364 netbsd32_ksi32_to_ksi(&si->_info, &si32->_info);
365 }
366
367 static void
netbsd32_ksi_to_ksi32(struct __ksiginfo32 * si32,const struct _ksiginfo * si)368 netbsd32_ksi_to_ksi32(struct __ksiginfo32 *si32, const struct _ksiginfo *si)
369 {
370 size_t i;
371
372 memset(si32, 0, sizeof (*si32));
373 si32->_signo = si->_signo;
374 si32->_code = si->_code;
375 si32->_errno = si->_errno;
376
377 if (si->_code == SI_NOINFO)
378 return;
379 else if (si->_code <= 0) /* codes described in siginfo(2) */
380 goto fill_rt;
381
382 switch (si->_signo) {
383 case SIGILL:
384 case SIGFPE:
385 case SIGBUS:
386 case SIGSEGV:
387 fill_fault:
388 si32->_reason._fault._addr =
389 NETBSD32PTR32I(si->_reason._fault._addr);
390 si32->_reason._fault._trap = si->_reason._fault._trap;
391 break;
392 case SIGTRAP:
393 switch (si->_code) {
394 case TRAP_EXEC:
395 break;
396 case TRAP_CHLD:
397 case TRAP_LWP:
398 si32->_reason._ptrace_state._pe_report_event =
399 si->_reason._ptrace_state._pe_report_event;
400 CTASSERT(sizeof(si32->_reason._ptrace_state._option._pe_other_pid) ==
401 sizeof(si32->_reason._ptrace_state._option._pe_lwp));
402 si32->_reason._ptrace_state._option._pe_other_pid =
403 si->_reason._ptrace_state._option._pe_other_pid;
404 break;
405 case TRAP_SCE:
406 case TRAP_SCX:
407 si32->_reason._syscall._sysnum =
408 si->_reason._syscall._sysnum;
409 si32->_reason._syscall._retval[0] =
410 si->_reason._syscall._retval[0];
411 si32->_reason._syscall._retval[1] =
412 si->_reason._syscall._retval[1];
413 si32->_reason._syscall._error =
414 si->_reason._syscall._error;
415 for (i = 0;
416 i < __arraycount(si->_reason._syscall._args); i++)
417 si32->_reason._syscall._args[i] =
418 si->_reason._syscall._args[i];
419 break;
420 default:
421 goto fill_fault;
422 }
423 break;
424 case SIGALRM:
425 case SIGVTALRM:
426 case SIGPROF:
427 default: /* see sigqueue() and kill1() */
428 fill_rt:
429 si32->_reason._rt._pid = si->_reason._rt._pid;
430 si32->_reason._rt._uid = si->_reason._rt._uid;
431 si32->_reason._rt._value.sival_int =
432 si->_reason._rt._value.sival_int;
433 break;
434 case SIGURG:
435 case SIGIO:
436 si32->_reason._poll._band = si->_reason._poll._band;
437 si32->_reason._poll._fd = si->_reason._poll._fd;
438 break;
439 case SIGCHLD:
440 si32->_reason._child._pid = si->_reason._child._pid;
441 si32->_reason._child._uid = si->_reason._child._uid;
442 si32->_reason._child._status = si->_reason._child._status;
443 si32->_reason._child._utime = si->_reason._child._utime;
444 si32->_reason._child._stime = si->_reason._child._stime;
445 break;
446 }
447 }
448
449 void
netbsd32_si_to_si32(siginfo32_t * si32,const siginfo_t * si)450 netbsd32_si_to_si32(siginfo32_t *si32, const siginfo_t *si)
451 {
452
453 memset(si32, 0, sizeof (*si32));
454 netbsd32_ksi_to_ksi32(&si32->_info, &si->_info);
455 }
456
457 void
getucontext32(struct lwp * l,ucontext32_t * ucp)458 getucontext32(struct lwp *l, ucontext32_t *ucp)
459 {
460 struct proc *p = l->l_proc;
461
462 KASSERT(mutex_owned(p->p_lock));
463
464 ucp->uc_flags = 0;
465 ucp->uc_link = (uint32_t)(intptr_t)l->l_ctxlink;
466 ucp->uc_sigmask = l->l_sigmask;
467 ucp->uc_flags |= _UC_SIGMASK;
468
469 /*
470 * The (unsupplied) definition of the `current execution stack'
471 * in the System V Interface Definition appears to allow returning
472 * the main context stack.
473 */
474 if ((l->l_sigstk.ss_flags & SS_ONSTACK) == 0) {
475 ucp->uc_stack.ss_sp = USRSTACK32;
476 ucp->uc_stack.ss_size = ctob(p->p_vmspace->vm_ssize);
477 ucp->uc_stack.ss_flags = 0; /* XXX, def. is Very Fishy */
478 } else {
479 /* Simply copy alternate signal execution stack. */
480 ucp->uc_stack.ss_sp =
481 (uint32_t)(intptr_t)l->l_sigstk.ss_sp;
482 ucp->uc_stack.ss_size = l->l_sigstk.ss_size;
483 ucp->uc_stack.ss_flags = l->l_sigstk.ss_flags;
484 }
485 ucp->uc_flags |= _UC_STACK;
486 mutex_exit(p->p_lock);
487 cpu_getmcontext32(l, &ucp->uc_mcontext, &ucp->uc_flags);
488 mutex_enter(p->p_lock);
489 }
490
491 int
netbsd32_getcontext(struct lwp * l,const struct netbsd32_getcontext_args * uap,register_t * retval)492 netbsd32_getcontext(struct lwp *l, const struct netbsd32_getcontext_args *uap, register_t *retval)
493 {
494 /* {
495 syscallarg(netbsd32_ucontextp) ucp;
496 } */
497 struct proc *p = l->l_proc;
498 ucontext32_t uc;
499
500 memset(&uc, 0, sizeof(uc));
501
502 mutex_enter(p->p_lock);
503 getucontext32(l, &uc);
504 mutex_exit(p->p_lock);
505
506 return copyout(&uc, SCARG_P32(uap, ucp), sizeof (ucontext32_t));
507 }
508
509 int
setucontext32(struct lwp * l,const ucontext32_t * ucp)510 setucontext32(struct lwp *l, const ucontext32_t *ucp)
511 {
512 struct proc *p = l->l_proc;
513 int error;
514
515 KASSERT(mutex_owned(p->p_lock));
516
517 if ((ucp->uc_flags & _UC_SIGMASK) != 0) {
518 error = sigprocmask1(l, SIG_SETMASK, &ucp->uc_sigmask, NULL);
519 if (error != 0)
520 return error;
521 }
522
523 mutex_exit(p->p_lock);
524 error = cpu_setmcontext32(l, &ucp->uc_mcontext, ucp->uc_flags);
525 mutex_enter(p->p_lock);
526 if (error != 0)
527 return error;
528
529 l->l_ctxlink = (void *)(intptr_t)ucp->uc_link;
530
531 /*
532 * If there was stack information, update whether or not we are
533 * still running on an alternate signal stack.
534 */
535 if ((ucp->uc_flags & _UC_STACK) != 0) {
536 if (ucp->uc_stack.ss_flags & SS_ONSTACK)
537 l->l_sigstk.ss_flags |= SS_ONSTACK;
538 else
539 l->l_sigstk.ss_flags &= ~SS_ONSTACK;
540 }
541
542 return 0;
543 }
544
545 /* ARGSUSED */
546 int
netbsd32_setcontext(struct lwp * l,const struct netbsd32_setcontext_args * uap,register_t * retval)547 netbsd32_setcontext(struct lwp *l, const struct netbsd32_setcontext_args *uap, register_t *retval)
548 {
549 /* {
550 syscallarg(netbsd32_ucontextp) ucp;
551 } */
552 ucontext32_t uc;
553 int error;
554 struct proc *p = l->l_proc;
555
556 error = copyin(SCARG_P32(uap, ucp), &uc, sizeof (uc));
557 if (error)
558 return error;
559 if (!(uc.uc_flags & _UC_CPU))
560 return EINVAL;
561 mutex_enter(p->p_lock);
562 error = setucontext32(l, &uc);
563 mutex_exit(p->p_lock);
564 if (error)
565 return error;
566
567 return EJUSTRETURN;
568 }
569
570 static int
netbsd32_sigtimedwait_put_info(const void * src,void * dst,size_t size)571 netbsd32_sigtimedwait_put_info(const void *src, void *dst, size_t size)
572 {
573 const siginfo_t *info = src;
574 siginfo32_t info32;
575
576 netbsd32_si_to_si32(&info32, info);
577
578 return copyout(&info32, dst, sizeof(info32));
579 }
580
581 static int
netbsd32_sigtimedwait_fetch_timeout(const void * src,void * dst,size_t size)582 netbsd32_sigtimedwait_fetch_timeout(const void *src, void *dst, size_t size)
583 {
584 struct timespec *ts = dst;
585 struct netbsd32_timespec ts32;
586 int error;
587
588 error = copyin(src, &ts32, sizeof(ts32));
589 if (error)
590 return error;
591
592 netbsd32_to_timespec(&ts32, ts);
593 return 0;
594 }
595
596 static int
netbsd32_sigtimedwait_put_timeout(const void * src,void * dst,size_t size)597 netbsd32_sigtimedwait_put_timeout(const void *src, void *dst, size_t size)
598 {
599 const struct timespec *ts = src;
600 struct netbsd32_timespec ts32;
601
602 netbsd32_from_timespec(ts, &ts32);
603
604 return copyout(&ts32, dst, sizeof(ts32));
605 }
606
607 int
netbsd32_____sigtimedwait50(struct lwp * l,const struct netbsd32_____sigtimedwait50_args * uap,register_t * retval)608 netbsd32_____sigtimedwait50(struct lwp *l, const struct netbsd32_____sigtimedwait50_args *uap, register_t *retval)
609 {
610 /* {
611 syscallarg(netbsd32_sigsetp_t) set;
612 syscallarg(netbsd32_siginfop_t) info;
613 syscallarg(netbsd32_timespec50p_t) timeout;
614 } */
615 struct sys_____sigtimedwait50_args ua;
616
617 NETBSD32TOP_UAP(set, const sigset_t);
618 NETBSD32TOP_UAP(info, siginfo_t);
619 NETBSD32TOP_UAP(timeout, struct timespec);
620
621 return sigtimedwait1(l, &ua, retval,
622 copyin,
623 netbsd32_sigtimedwait_put_info,
624 netbsd32_sigtimedwait_fetch_timeout,
625 netbsd32_sigtimedwait_put_timeout);
626 }
627
628 int
netbsd32_sigqueueinfo(struct lwp * l,const struct netbsd32_sigqueueinfo_args * uap,register_t * retval)629 netbsd32_sigqueueinfo(struct lwp *l,
630 const struct netbsd32_sigqueueinfo_args *uap, register_t *retval)
631 {
632 /* {
633 syscallarg(pid_t) pid;
634 syscallarg(const netbsd32_siginfop_t) info;
635 } */
636 struct __ksiginfo32 ksi32;
637 ksiginfo_t ksi;
638 int error;
639
640 if ((error = copyin(SCARG_P32(uap, info), &ksi32,
641 sizeof(ksi32))) != 0)
642 return error;
643
644 KSI_INIT(&ksi);
645 netbsd32_ksi32_to_ksi(&ksi.ksi_info, &ksi32);
646
647 return kill1(l, SCARG(uap, pid), &ksi, retval);
648 }
649
650 struct netbsd32_ktr_psig {
651 int signo;
652 netbsd32_pointer_t action;
653 sigset_t mask;
654 int code;
655 /* and optional siginfo_t */
656 };
657
658 #ifdef notyet
659 #ifdef KTRACE
660 void
netbsd32_ktrpsig(int sig,sig_t action,const sigset_t * mask,const ksiginfo_t * ksi)661 netbsd32_ktrpsig(int sig, sig_t action, const sigset_t *mask,
662 const ksiginfo_t *ksi)
663 {
664 struct ktrace_entry *kte;
665 lwp_t *l = curlwp;
666 struct {
667 struct netbsd32_ktr_psig kp;
668 siginfo32_t si;
669 } *kbuf;
670
671 if (!KTRPOINT(l->l_proc, KTR_PSIG))
672 return;
673
674 if (ktealloc(&kte, (void *)&kbuf, l, KTR_PSIG, sizeof(*kbuf)))
675 return;
676
677 kbuf->kp.signo = (char)sig;
678 NETBSD32PTR32(kbuf->kp.action, action);
679 kbuf->kp.mask = *mask;
680
681 if (ksi) {
682 kbuf->kp.code = KSI_TRAPCODE(ksi);
683 (void)memset(&kbuf->si, 0, sizeof(kbuf->si));
684 netbsd32_ksi_to_ksi32(&kbuf->si._info, &ksi->ksi_info);
685 ktesethdrlen(kte, sizeof(*kbuf));
686 } else {
687 kbuf->kp.code = 0;
688 ktesethdrlen(kte, sizeof(struct netbsd32_ktr_psig));
689 }
690
691 ktraddentry(l, kte, KTA_WAITOK);
692 }
693 #endif
694 #endif
695