1 /* $NetBSD: netbsd32_signal.c,v 1.53 2021/11/06 20:42:56 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_signal.c,v 1.53 2021/11/06 20:42:56 thorpej 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 = false;
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 if (netbsd32_sendsig_sigcontext_16_hook.hooked) {
200 sigcontext_valid = true;
201 }
202 mutex_enter(&proc_lock);
203 /*
204 * Prevent unload of compat module while
205 * this process remains.
206 */
207 p->p_lflag |= PL_SIGCOMPAT;
208 mutex_exit(&proc_lock);
209 kernconfig_unlock();
210 }
211 if (!sigcontext_valid) {
212 return EINVAL;
213 }
214 #else /* ! __HAVE_STRUCT_SIGCONTEXT */
215 return EINVAL;
216 #endif /* __HAVE_STRUCT_SIGCONTEXT */
217 }
218 #endif /* __HAVE_MD_NETBSD32_SENDSIG */
219 error = sigaction1(l, SCARG(uap, signum),
220 SCARG_P32(uap, nsa) ? &nsa : 0,
221 SCARG_P32(uap, osa) ? &osa : 0,
222 SCARG_P32(uap, tramp), vers);
223 if (error)
224 return error;
225 if (SCARG_P32(uap, osa)) {
226 memset(&sa32, 0, sizeof(sa32));
227 NETBSD32PTR32(sa32.netbsd32_sa_handler, osa.sa_handler);
228 sa32.netbsd32_sa_mask = osa.sa_mask;
229 sa32.netbsd32_sa_flags = osa.sa_flags;
230 error = copyout(&sa32, SCARG_P32(uap, osa), sizeof(sa32));
231 if (error)
232 return error;
233 }
234 return 0;
235 }
236
237 #ifndef __HAVE_MD_NETBSD32_SENDSIG /* XXX paying for yesterday's sins */
238 #ifdef __HAVE_STRUCT_SIGCONTEXT
239 struct netbsd32_sendsig_sigcontext_16_hook_t netbsd32_sendsig_sigcontext_16_hook;
240 #endif
241
242 void
netbsd32_sendsig(const struct ksiginfo * ksi,const sigset_t * mask)243 netbsd32_sendsig(const struct ksiginfo *ksi, const sigset_t *mask)
244 {
245 struct sigacts *sa;
246 int sig;
247
248 sig = ksi->ksi_signo;
249 sa = curproc->p_sigacts;
250
251 switch (sa->sa_sigdesc[sig].sd_vers) {
252 #ifdef __HAVE_STRUCT_SIGCONTEXT
253 case __SIGTRAMP_SIGCODE_VERSION:
254 case __SIGTRAMP_SIGCONTEXT_VERSION_MIN ...
255 __SIGTRAMP_SIGCONTEXT_VERSION_MAX:
256 /* Compat for 1.6 and earlier. */
257 MODULE_HOOK_CALL_VOID(netbsd32_sendsig_sigcontext_16_hook,
258 (ksi, mask), break);
259 return;
260 #endif /* __HAVE_STRUCT_SIGCONTEXT */
261 case __SIGTRAMP_SIGINFO_VERSION_MIN ...
262 __SIGTRAMP_SIGINFO_VERSION_MAX:
263 netbsd32_sendsig_siginfo(ksi, mask);
264 return;
265 default:
266 break;
267 }
268
269 printf("%s: bad version %d\n", __func__, sa->sa_sigdesc[sig].sd_vers);
270 sigexit(curlwp, SIGILL);
271 }
272 #endif /* __HAVE_MD_NETBSD32_SENDSIG */
273
274 void
netbsd32_ksi32_to_ksi(struct _ksiginfo * si,const struct __ksiginfo32 * si32)275 netbsd32_ksi32_to_ksi(struct _ksiginfo *si, const struct __ksiginfo32 *si32)
276 {
277 size_t i;
278
279 memset(si, 0, sizeof (*si));
280 si->_signo = si32->_signo;
281 si->_code = si32->_code;
282 si->_errno = si32->_errno;
283
284 if (si32->_code == SI_NOINFO)
285 return;
286 else if (si32->_code <= 0) /* codes described in siginfo(2) */
287 goto fill_rt;
288
289 switch (si32->_signo) {
290 case SIGILL:
291 case SIGFPE:
292 case SIGBUS:
293 case SIGSEGV:
294 fill_fault:
295 si->_reason._fault._addr =
296 NETBSD32IPTR64(si32->_reason._fault._addr);
297 si->_reason._fault._trap = si32->_reason._fault._trap;
298 break;
299 case SIGTRAP:
300 switch (si32->_code) {
301 case TRAP_EXEC:
302 break;
303 case TRAP_CHLD:
304 case TRAP_LWP:
305 si->_reason._ptrace_state._pe_report_event =
306 si32->_reason._ptrace_state._pe_report_event;
307 CTASSERT(sizeof(si->_reason._ptrace_state._option._pe_other_pid) ==
308 sizeof(si->_reason._ptrace_state._option._pe_lwp));
309 si->_reason._ptrace_state._option._pe_other_pid =
310 si32->_reason._ptrace_state._option._pe_other_pid;
311 break;
312 case TRAP_SCE:
313 case TRAP_SCX:
314 si->_reason._syscall._sysnum =
315 si32->_reason._syscall._sysnum;
316 si->_reason._syscall._retval[0] =
317 si32->_reason._syscall._retval[0];
318 si->_reason._syscall._retval[1] =
319 si32->_reason._syscall._retval[1];
320 si->_reason._syscall._error =
321 si32->_reason._syscall._error;
322 for (i = 0;
323 i < __arraycount(si->_reason._syscall._args); i++)
324 si->_reason._syscall._args[i] =
325 si32->_reason._syscall._args[i];
326 break;
327 default:
328 goto fill_fault;
329 }
330 break;
331 case SIGALRM:
332 case SIGVTALRM:
333 case SIGPROF:
334 default: /* see sigqueue() and kill1() */
335 fill_rt:
336 si->_reason._rt._pid = si32->_reason._rt._pid;
337 si->_reason._rt._uid = si32->_reason._rt._uid;
338 si->_reason._rt._value.sival_int =
339 si32->_reason._rt._value.sival_int;
340 break;
341 case SIGURG:
342 case SIGIO:
343 si->_reason._poll._band = si32->_reason._poll._band;
344 si->_reason._poll._fd = si32->_reason._poll._fd;
345 break;
346 case SIGCHLD:
347 si->_reason._child._pid = si32->_reason._child._pid;
348 si->_reason._child._uid = si32->_reason._child._uid;
349 si->_reason._child._status = si32->_reason._child._status;
350 si->_reason._child._utime = si32->_reason._child._utime;
351 si->_reason._child._stime = si32->_reason._child._stime;
352 break;
353 }
354 }
355
356 void
netbsd32_si32_to_si(siginfo_t * si,const siginfo32_t * si32)357 netbsd32_si32_to_si(siginfo_t *si, const siginfo32_t *si32)
358 {
359
360 memset(si, 0, sizeof (*si));
361 netbsd32_ksi32_to_ksi(&si->_info, &si32->_info);
362 }
363
364 static void
netbsd32_ksi_to_ksi32(struct __ksiginfo32 * si32,const struct _ksiginfo * si)365 netbsd32_ksi_to_ksi32(struct __ksiginfo32 *si32, const struct _ksiginfo *si)
366 {
367 size_t i;
368
369 memset(si32, 0, sizeof (*si32));
370 si32->_signo = si->_signo;
371 si32->_code = si->_code;
372 si32->_errno = si->_errno;
373
374 if (si->_code == SI_NOINFO)
375 return;
376 else if (si->_code <= 0) /* codes described in siginfo(2) */
377 goto fill_rt;
378
379 switch (si->_signo) {
380 case SIGILL:
381 case SIGFPE:
382 case SIGBUS:
383 case SIGSEGV:
384 fill_fault:
385 si32->_reason._fault._addr =
386 NETBSD32PTR32I(si->_reason._fault._addr);
387 si32->_reason._fault._trap = si->_reason._fault._trap;
388 break;
389 case SIGTRAP:
390 switch (si->_code) {
391 case TRAP_EXEC:
392 break;
393 case TRAP_CHLD:
394 case TRAP_LWP:
395 si32->_reason._ptrace_state._pe_report_event =
396 si->_reason._ptrace_state._pe_report_event;
397 CTASSERT(sizeof(si32->_reason._ptrace_state._option._pe_other_pid) ==
398 sizeof(si32->_reason._ptrace_state._option._pe_lwp));
399 si32->_reason._ptrace_state._option._pe_other_pid =
400 si->_reason._ptrace_state._option._pe_other_pid;
401 break;
402 case TRAP_SCE:
403 case TRAP_SCX:
404 si32->_reason._syscall._sysnum =
405 si->_reason._syscall._sysnum;
406 si32->_reason._syscall._retval[0] =
407 si->_reason._syscall._retval[0];
408 si32->_reason._syscall._retval[1] =
409 si->_reason._syscall._retval[1];
410 si32->_reason._syscall._error =
411 si->_reason._syscall._error;
412 for (i = 0;
413 i < __arraycount(si->_reason._syscall._args); i++)
414 si32->_reason._syscall._args[i] =
415 si->_reason._syscall._args[i];
416 break;
417 default:
418 goto fill_fault;
419 }
420 break;
421 case SIGALRM:
422 case SIGVTALRM:
423 case SIGPROF:
424 default: /* see sigqueue() and kill1() */
425 fill_rt:
426 si32->_reason._rt._pid = si->_reason._rt._pid;
427 si32->_reason._rt._uid = si->_reason._rt._uid;
428 si32->_reason._rt._value.sival_int =
429 si->_reason._rt._value.sival_int;
430 break;
431 case SIGURG:
432 case SIGIO:
433 si32->_reason._poll._band = si->_reason._poll._band;
434 si32->_reason._poll._fd = si->_reason._poll._fd;
435 break;
436 case SIGCHLD:
437 si32->_reason._child._pid = si->_reason._child._pid;
438 si32->_reason._child._uid = si->_reason._child._uid;
439 si32->_reason._child._status = si->_reason._child._status;
440 si32->_reason._child._utime = si->_reason._child._utime;
441 si32->_reason._child._stime = si->_reason._child._stime;
442 break;
443 }
444 }
445
446 void
netbsd32_si_to_si32(siginfo32_t * si32,const siginfo_t * si)447 netbsd32_si_to_si32(siginfo32_t *si32, const siginfo_t *si)
448 {
449
450 memset(si32, 0, sizeof (*si32));
451 netbsd32_ksi_to_ksi32(&si32->_info, &si->_info);
452 }
453
454 void
getucontext32(struct lwp * l,ucontext32_t * ucp)455 getucontext32(struct lwp *l, ucontext32_t *ucp)
456 {
457 struct proc *p = l->l_proc;
458
459 KASSERT(mutex_owned(p->p_lock));
460
461 ucp->uc_flags = 0;
462 ucp->uc_link = (uint32_t)(intptr_t)l->l_ctxlink;
463 ucp->uc_sigmask = l->l_sigmask;
464 ucp->uc_flags |= _UC_SIGMASK;
465
466 /*
467 * The (unsupplied) definition of the `current execution stack'
468 * in the System V Interface Definition appears to allow returning
469 * the main context stack.
470 */
471 if ((l->l_sigstk.ss_flags & SS_ONSTACK) == 0) {
472 ucp->uc_stack.ss_sp = USRSTACK32;
473 ucp->uc_stack.ss_size = ctob(p->p_vmspace->vm_ssize);
474 ucp->uc_stack.ss_flags = 0; /* XXX, def. is Very Fishy */
475 } else {
476 /* Simply copy alternate signal execution stack. */
477 ucp->uc_stack.ss_sp =
478 (uint32_t)(intptr_t)l->l_sigstk.ss_sp;
479 ucp->uc_stack.ss_size = l->l_sigstk.ss_size;
480 ucp->uc_stack.ss_flags = l->l_sigstk.ss_flags;
481 }
482 ucp->uc_flags |= _UC_STACK;
483 mutex_exit(p->p_lock);
484 cpu_getmcontext32(l, &ucp->uc_mcontext, &ucp->uc_flags);
485 mutex_enter(p->p_lock);
486 }
487
488 int
netbsd32_getcontext(struct lwp * l,const struct netbsd32_getcontext_args * uap,register_t * retval)489 netbsd32_getcontext(struct lwp *l, const struct netbsd32_getcontext_args *uap, register_t *retval)
490 {
491 /* {
492 syscallarg(netbsd32_ucontextp) ucp;
493 } */
494 struct proc *p = l->l_proc;
495 ucontext32_t uc;
496
497 memset(&uc, 0, sizeof(uc));
498
499 mutex_enter(p->p_lock);
500 getucontext32(l, &uc);
501 mutex_exit(p->p_lock);
502
503 return copyout(&uc, SCARG_P32(uap, ucp), sizeof (ucontext32_t));
504 }
505
506 int
setucontext32(struct lwp * l,const ucontext32_t * ucp)507 setucontext32(struct lwp *l, const ucontext32_t *ucp)
508 {
509 struct proc *p = l->l_proc;
510 int error;
511
512 KASSERT(mutex_owned(p->p_lock));
513
514 if ((ucp->uc_flags & _UC_SIGMASK) != 0) {
515 error = sigprocmask1(l, SIG_SETMASK, &ucp->uc_sigmask, NULL);
516 if (error != 0)
517 return error;
518 }
519
520 mutex_exit(p->p_lock);
521 error = cpu_setmcontext32(l, &ucp->uc_mcontext, ucp->uc_flags);
522 mutex_enter(p->p_lock);
523 if (error != 0)
524 return error;
525
526 l->l_ctxlink = (void *)(intptr_t)ucp->uc_link;
527
528 /*
529 * If there was stack information, update whether or not we are
530 * still running on an alternate signal stack.
531 */
532 if ((ucp->uc_flags & _UC_STACK) != 0) {
533 if (ucp->uc_stack.ss_flags & SS_ONSTACK)
534 l->l_sigstk.ss_flags |= SS_ONSTACK;
535 else
536 l->l_sigstk.ss_flags &= ~SS_ONSTACK;
537 }
538
539 return 0;
540 }
541
542 /* ARGSUSED */
543 int
netbsd32_setcontext(struct lwp * l,const struct netbsd32_setcontext_args * uap,register_t * retval)544 netbsd32_setcontext(struct lwp *l, const struct netbsd32_setcontext_args *uap, register_t *retval)
545 {
546 /* {
547 syscallarg(netbsd32_ucontextp) ucp;
548 } */
549 ucontext32_t uc;
550 int error;
551 struct proc *p = l->l_proc;
552
553 error = copyin(SCARG_P32(uap, ucp), &uc, sizeof (uc));
554 if (error)
555 return error;
556 if (!(uc.uc_flags & _UC_CPU))
557 return EINVAL;
558 mutex_enter(p->p_lock);
559 error = setucontext32(l, &uc);
560 mutex_exit(p->p_lock);
561 if (error)
562 return error;
563
564 return EJUSTRETURN;
565 }
566
567 static int
netbsd32_sigtimedwait_put_info(const void * src,void * dst,size_t size)568 netbsd32_sigtimedwait_put_info(const void *src, void *dst, size_t size)
569 {
570 const siginfo_t *info = src;
571 siginfo32_t info32;
572
573 netbsd32_si_to_si32(&info32, info);
574
575 return copyout(&info32, dst, sizeof(info32));
576 }
577
578 static int
netbsd32_sigtimedwait_fetch_timeout(const void * src,void * dst,size_t size)579 netbsd32_sigtimedwait_fetch_timeout(const void *src, void *dst, size_t size)
580 {
581 struct timespec *ts = dst;
582 struct netbsd32_timespec ts32;
583 int error;
584
585 error = copyin(src, &ts32, sizeof(ts32));
586 if (error)
587 return error;
588
589 netbsd32_to_timespec(&ts32, ts);
590 return 0;
591 }
592
593 static int
netbsd32_sigtimedwait_put_timeout(const void * src,void * dst,size_t size)594 netbsd32_sigtimedwait_put_timeout(const void *src, void *dst, size_t size)
595 {
596 const struct timespec *ts = src;
597 struct netbsd32_timespec ts32;
598
599 netbsd32_from_timespec(ts, &ts32);
600
601 return copyout(&ts32, dst, sizeof(ts32));
602 }
603
604 int
netbsd32_____sigtimedwait50(struct lwp * l,const struct netbsd32_____sigtimedwait50_args * uap,register_t * retval)605 netbsd32_____sigtimedwait50(struct lwp *l, const struct netbsd32_____sigtimedwait50_args *uap, register_t *retval)
606 {
607 /* {
608 syscallarg(netbsd32_sigsetp_t) set;
609 syscallarg(netbsd32_siginfop_t) info;
610 syscallarg(netbsd32_timespec50p_t) timeout;
611 } */
612 struct sys_____sigtimedwait50_args ua;
613
614 NETBSD32TOP_UAP(set, const sigset_t);
615 NETBSD32TOP_UAP(info, siginfo_t);
616 NETBSD32TOP_UAP(timeout, struct timespec);
617
618 return sigtimedwait1(l, &ua, retval,
619 copyin,
620 netbsd32_sigtimedwait_put_info,
621 netbsd32_sigtimedwait_fetch_timeout,
622 netbsd32_sigtimedwait_put_timeout);
623 }
624
625 int
netbsd32_sigqueueinfo(struct lwp * l,const struct netbsd32_sigqueueinfo_args * uap,register_t * retval)626 netbsd32_sigqueueinfo(struct lwp *l,
627 const struct netbsd32_sigqueueinfo_args *uap, register_t *retval)
628 {
629 /* {
630 syscallarg(pid_t) pid;
631 syscallarg(const netbsd32_siginfop_t) info;
632 } */
633 struct __ksiginfo32 ksi32;
634 ksiginfo_t ksi;
635 int error;
636
637 if ((error = copyin(SCARG_P32(uap, info), &ksi32,
638 sizeof(ksi32))) != 0)
639 return error;
640
641 KSI_INIT(&ksi);
642 netbsd32_ksi32_to_ksi(&ksi.ksi_info, &ksi32);
643
644 return kill1(l, SCARG(uap, pid), &ksi, retval);
645 }
646
647 struct netbsd32_ktr_psig {
648 int signo;
649 netbsd32_pointer_t action;
650 sigset_t mask;
651 int code;
652 /* and optional siginfo_t */
653 };
654
655 #ifdef notyet
656 #ifdef KTRACE
657 void
netbsd32_ktrpsig(int sig,sig_t action,const sigset_t * mask,const ksiginfo_t * ksi)658 netbsd32_ktrpsig(int sig, sig_t action, const sigset_t *mask,
659 const ksiginfo_t *ksi)
660 {
661 struct ktrace_entry *kte;
662 lwp_t *l = curlwp;
663 struct {
664 struct netbsd32_ktr_psig kp;
665 siginfo32_t si;
666 } *kbuf;
667
668 if (!KTRPOINT(l->l_proc, KTR_PSIG))
669 return;
670
671 if (ktealloc(&kte, (void *)&kbuf, l, KTR_PSIG, sizeof(*kbuf)))
672 return;
673
674 kbuf->kp.signo = (char)sig;
675 NETBSD32PTR32(kbuf->kp.action, action);
676 kbuf->kp.mask = *mask;
677
678 if (ksi) {
679 kbuf->kp.code = KSI_TRAPCODE(ksi);
680 (void)memset(&kbuf->si, 0, sizeof(kbuf->si));
681 netbsd32_ksi_to_ksi32(&kbuf->si._info, &ksi->ksi_info);
682 ktesethdrlen(kte, sizeof(*kbuf));
683 } else {
684 kbuf->kp.code = 0;
685 ktesethdrlen(kte, sizeof(struct netbsd32_ktr_psig));
686 }
687
688 ktraddentry(l, kte, KTA_WAITOK);
689 }
690 #endif
691 #endif
692