596 lines
14 KiB
C
596 lines
14 KiB
C
/* $NetBSD: osf1_signal.c,v 1.12 1999/04/26 05:35:08 cgd Exp $ */
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/*
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* Copyright (c) 1999 Christopher G. Demetriou. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/namei.h>
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#include <sys/proc.h>
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#include <sys/filedesc.h>
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#include <sys/ioctl.h>
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#include <sys/mount.h>
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#include <sys/kernel.h>
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#include <sys/signal.h>
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#include <sys/signalvar.h>
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#include <sys/malloc.h>
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#include <sys/syscallargs.h>
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#include <compat/osf1/osf1.h>
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#include <compat/osf1/osf1_signal.h>
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#include <compat/osf1/osf1_syscallargs.h>
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#include <compat/osf1/osf1_util.h>
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static void bsd_to_osf1_sigaction __P((const struct sigaction *bsa,
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struct osf1_sigaction *osa));
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static void osf1_to_bsd_sigaction __P((const struct osf1_sigaction *osa,
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struct sigaction *bsa));
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#define osf1_sigmask(n) (1UL << ((n) - 1))
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#define osf1_sigemptyset(s) memset((s), 0, sizeof(*(s)))
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#define osf1_sigismember(s, n) (*(s) & osf1_sigmask(n))
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#define osf1_sigaddset(s, n) (*(s) |= osf1_sigmask(n))
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int bsd_to_osf1_sig[] = {
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0,
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OSF1_SIGHUP,
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OSF1_SIGINT,
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OSF1_SIGQUIT,
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OSF1_SIGILL,
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OSF1_SIGTRAP,
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OSF1_SIGABRT,
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OSF1_SIGEMT,
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OSF1_SIGFPE,
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OSF1_SIGKILL,
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OSF1_SIGBUS,
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OSF1_SIGSEGV,
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OSF1_SIGSYS,
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OSF1_SIGPIPE,
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OSF1_SIGALRM,
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OSF1_SIGTERM,
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OSF1_SIGURG,
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OSF1_SIGSTOP,
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OSF1_SIGTSTP,
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OSF1_SIGCONT,
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OSF1_SIGCHLD,
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OSF1_SIGTTIN,
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OSF1_SIGTTOU,
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OSF1_SIGIO,
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OSF1_SIGXCPU,
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OSF1_SIGXFSZ,
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OSF1_SIGVTALRM,
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OSF1_SIGPROF,
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OSF1_SIGWINCH,
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OSF1_SIGINFO,
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OSF1_SIGUSR1,
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OSF1_SIGUSR2,
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};
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int osf1_to_bsd_sig[] = {
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0,
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SIGHUP,
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SIGINT,
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SIGQUIT,
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SIGILL,
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SIGTRAP,
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SIGABRT,
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SIGEMT,
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SIGFPE,
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SIGKILL,
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SIGBUS,
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SIGSEGV,
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SIGSYS,
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SIGPIPE,
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SIGALRM,
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SIGTERM,
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SIGURG,
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SIGSTOP,
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SIGTSTP,
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SIGCONT,
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SIGCHLD,
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SIGTTIN,
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SIGTTOU,
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SIGIO,
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SIGXCPU,
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SIGXFSZ,
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SIGVTALRM,
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SIGPROF,
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SIGWINCH,
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SIGINFO,
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SIGUSR1,
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SIGUSR2,
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};
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void
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osf1_to_bsd_sigset(oss, bss)
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const osf1_sigset_t *oss;
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sigset_t *bss;
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{
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int i, newsig;
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sigemptyset(bss);
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for (i = 1; i < OSF1_NSIG; i++) {
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if (osf1_sigismember(oss, i)) {
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newsig = osf1_to_bsd_sig[i];
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if (newsig)
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sigaddset(bss, newsig);
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}
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}
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}
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void
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bsd_to_osf1_sigset(bss, oss)
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const sigset_t *bss;
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osf1_sigset_t *oss;
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{
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int i, newsig;
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osf1_sigemptyset(oss);
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for (i = 1; i < NSIG; i++) {
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if (sigismember(bss, i)) {
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newsig = bsd_to_osf1_sig[i];
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if (newsig)
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osf1_sigaddset(oss, newsig);
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}
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}
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}
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const struct emul_flags_xtab osf1_sigaction_flags_xtab[] = {
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{ OSF1_SA_ONSTACK, OSF1_SA_ONSTACK, SA_ONSTACK },
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{ OSF1_SA_RESTART, OSF1_SA_RESTART, SA_RESTART },
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{ OSF1_SA_NOCLDSTOP, OSF1_SA_NOCLDSTOP, SA_NOCLDSTOP },
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{ OSF1_SA_NODEFER, OSF1_SA_NODEFER, SA_NODEFER },
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{ OSF1_SA_RESETHAND, OSF1_SA_RESETHAND, SA_RESETHAND },
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{ OSF1_SA_NOCLDWAIT, OSF1_SA_NOCLDWAIT, SA_NOCLDWAIT },
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#if 0 /* XXX not yet */
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{ OSF1_SA_SIGINFO, OSF1_SA_SIGINFO, SA_SIGINFO },
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#endif
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{ 0 },
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};
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const struct emul_flags_xtab osf1_sigaction_flags_rxtab[] = {
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{ SA_ONSTACK, SA_ONSTACK, OSF1_SA_ONSTACK },
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{ SA_RESTART, SA_RESTART, OSF1_SA_RESTART },
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{ SA_NOCLDSTOP, SA_NOCLDSTOP, OSF1_SA_NOCLDSTOP },
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{ SA_NODEFER, SA_NODEFER, OSF1_SA_NODEFER },
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{ SA_RESETHAND, SA_RESETHAND, OSF1_SA_RESETHAND },
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{ SA_NOCLDWAIT, SA_NOCLDWAIT, OSF1_SA_NOCLDWAIT },
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#if 0 /* XXX not yet */
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{ SA_SIGINFO, SA_SIGINFO, OSF1_SA_SIGINFO },
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#endif
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{ 0 },
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};
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/*
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* XXX: Only a subset of the flags is currently implemented.
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*/
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void
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osf1_to_bsd_sigaction(osa, bsa)
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const struct osf1_sigaction *osa;
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struct sigaction *bsa;
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{
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bsa->sa_handler = osa->sa_handler;
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osf1_to_bsd_sigset(&osa->sa_mask, &bsa->sa_mask);
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/* translate flags */
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bsa->sa_flags = emul_flags_translate(osf1_sigaction_flags_xtab,
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osa->sa_flags, NULL);
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/* XXX error if we can't translate */
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}
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void
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bsd_to_osf1_sigaction(bsa, osa)
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const struct sigaction *bsa;
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struct osf1_sigaction *osa;
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{
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osa->sa_handler = bsa->sa_handler;
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bsd_to_osf1_sigset(&bsa->sa_mask, &osa->sa_mask);
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/* translate flags */
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osa->sa_flags = emul_flags_translate(osf1_sigaction_flags_rxtab,
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bsa->sa_flags, NULL);
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}
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const struct emul_flags_xtab osf1_sigaltstack_flags_xtab[] = {
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{ OSF1_SS_ONSTACK, OSF1_SS_ONSTACK, SS_ONSTACK },
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{ OSF1_SS_DISABLE, OSF1_SS_DISABLE, SS_DISABLE },
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#if 0 /* XXX no equivalents */
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{ OSF1_SS_NOMASK, OSF1_SS_NOMASK, ??? },
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{ OSF1_SS_UCONTEXT, OSF1_SS_UCONTEXT, ??? },
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#endif
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{ 0 },
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};
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const struct emul_flags_xtab osf1_sigaltstack_flags_rxtab[] = {
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{ SS_ONSTACK, SS_ONSTACK, OSF1_SS_ONSTACK },
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{ SS_DISABLE, SS_DISABLE, OSF1_SS_DISABLE },
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#if 0 /* XXX no equivalents */
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{ ???, ???, OSF1_SS_NOMASK },
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{ ???, ???, OSF1_SS_UCONTEXT },
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#endif
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{ 0 },
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};
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void
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osf1_to_bsd_sigaltstack(oss, bss)
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const struct osf1_sigaltstack *oss;
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struct sigaltstack *bss;
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{
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bss->ss_sp = oss->ss_sp;
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bss->ss_size = oss->ss_size;
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/* translate flags */
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bss->ss_flags = emul_flags_translate(osf1_sigaltstack_flags_xtab,
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oss->ss_flags, NULL);
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/* XXX error if we can't translate */
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}
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void
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bsd_to_osf1_sigaltstack(bss, oss)
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const struct sigaltstack *bss;
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struct osf1_sigaltstack *oss;
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{
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oss->ss_sp = bss->ss_sp;
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oss->ss_size = bss->ss_size;
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/* translate flags */
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oss->ss_flags = emul_flags_translate(osf1_sigaltstack_flags_rxtab,
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bss->ss_flags, NULL);
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}
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int
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osf1_sys_sigaction(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_sigaction_args *uap = v;
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struct osf1_sigaction *nosa, *oosa, tmposa;
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struct sigaction *nbsa, *obsa, tmpbsa;
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struct sys___sigaction14_args sa;
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caddr_t sg;
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int error;
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sg = stackgap_init(p->p_emul);
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nosa = SCARG(uap, nsa);
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oosa = SCARG(uap, osa);
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if (oosa != NULL)
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obsa = stackgap_alloc(&sg, sizeof(struct sigaction));
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else
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obsa = NULL;
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if (nosa != NULL) {
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nbsa = stackgap_alloc(&sg, sizeof(struct sigaction));
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if ((error = copyin(nosa, &tmposa, sizeof(tmposa))) != 0)
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return error;
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osf1_to_bsd_sigaction(&tmposa, &tmpbsa);
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if ((error = copyout(&tmpbsa, nbsa, sizeof(tmpbsa))) != 0)
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return error;
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} else
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nbsa = NULL;
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SCARG(&sa, signum) = osf1_to_bsd_sig[SCARG(uap, signum)];
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SCARG(&sa, nsa) = nbsa;
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SCARG(&sa, osa) = obsa;
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if ((error = sys___sigaction14(p, &sa, retval)) != 0)
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return error;
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if (oosa != NULL) {
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if ((error = copyin(obsa, &tmpbsa, sizeof(tmpbsa))) != 0)
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return error;
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bsd_to_osf1_sigaction(&tmpbsa, &tmposa);
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if ((error = copyout(&tmposa, oosa, sizeof(tmposa))) != 0)
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return error;
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}
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return 0;
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}
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int
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osf1_sys_sigaltstack(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_sigaltstack_args *uap = v;
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struct osf1_sigaltstack *noss, *ooss, tmposs;
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struct sigaltstack *nbss, *obss, tmpbss;
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struct sys___sigaltstack14_args sa;
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caddr_t sg;
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int error;
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sg = stackgap_init(p->p_emul);
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noss = SCARG(uap, nss);
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ooss = SCARG(uap, oss);
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if (ooss != NULL)
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obss = stackgap_alloc(&sg, sizeof(struct sigaltstack));
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else
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obss = NULL;
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if (noss != NULL) {
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nbss = stackgap_alloc(&sg, sizeof(struct sigaltstack));
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if ((error = copyin(noss, &tmposs, sizeof(tmposs))) != 0)
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return error;
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osf1_to_bsd_sigaltstack(&tmposs, &tmpbss);
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if ((error = copyout(&tmpbss, nbss, sizeof(tmpbss))) != 0)
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return error;
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} else
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nbss = NULL;
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SCARG(&sa, nss) = nbss;
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SCARG(&sa, oss) = obss;
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if ((error = sys___sigaltstack14(p, &sa, retval)) != 0)
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return error;
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if (obss != NULL) {
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if ((error = copyin(obss, &tmpbss, sizeof(tmpbss))) != 0)
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return error;
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bsd_to_osf1_sigaltstack(&tmpbss, &tmposs);
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if ((error = copyout(&tmposs, ooss, sizeof(tmposs))) != 0)
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return error;
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}
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return 0;
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}
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#if 0
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int
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osf1_sys_signal(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_signal_args *uap = v;
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int signum = osf1_to_bsd_sig[OSF1_SIGNO(SCARG(uap, signum))];
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int error;
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caddr_t sg = stackgap_init(p->p_emul);
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if (signum <= 0 || signum >= OSF1_NSIG) {
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if (OSF1_SIGCALL(SCARG(uap, signum)) == OSF1_SIGNAL_MASK ||
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OSF1_SIGCALL(SCARG(uap, signum)) == OSF1_SIGDEFER_MASK)
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*retval = (int)OSF1_SIG_ERR;
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return EINVAL;
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}
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switch (OSF1_SIGCALL(SCARG(uap, signum))) {
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case OSF1_SIGDEFER_MASK:
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/*
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* sigset is identical to signal() except
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* that SIG_HOLD is allowed as
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* an action.
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*/
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if (SCARG(uap, handler) == OSF1_SIG_HOLD) {
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struct sys_sigprocmask_args sa;
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SCARG(&sa, how) = SIG_BLOCK;
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SCARG(&sa, mask) = sigmask(signum);
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return sys_sigprocmask(p, &sa, retval);
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}
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/* FALLTHROUGH */
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case OSF1_SIGNAL_MASK:
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{
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struct sys_sigaction_args sa_args;
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struct sigaction *nbsa, *obsa, sa;
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nbsa = stackgap_alloc(&sg, sizeof(struct sigaction));
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obsa = stackgap_alloc(&sg, sizeof(struct sigaction));
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SCARG(&sa_args, signum) = signum;
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SCARG(&sa_args, nsa) = nbsa;
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SCARG(&sa_args, osa) = obsa;
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sa.sa_handler = SCARG(uap, handler);
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = 0;
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#if 0
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if (signum != SIGALRM)
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sa.sa_flags = SA_RESTART;
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#endif
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if ((error = copyout(&sa, nbsa, sizeof(sa))) != 0)
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return error;
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if ((error = sys_sigaction(p, &sa_args, retval)) != 0) {
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DPRINTF(("signal: sigaction failed: %d\n",
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error));
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*retval = (int)OSF1_SIG_ERR;
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return error;
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}
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if ((error = copyin(obsa, &sa, sizeof(sa))) != 0)
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return error;
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*retval = (int)sa.sa_handler;
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return 0;
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}
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case OSF1_SIGHOLD_MASK:
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{
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struct sys_sigprocmask_args sa;
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SCARG(&sa, how) = SIG_BLOCK;
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SCARG(&sa, mask) = sigmask(signum);
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return sys_sigprocmask(p, &sa, retval);
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}
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case OSF1_SIGRELSE_MASK:
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{
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struct sys_sigprocmask_args sa;
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SCARG(&sa, how) = SIG_UNBLOCK;
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SCARG(&sa, mask) = sigmask(signum);
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return sys_sigprocmask(p, &sa, retval);
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}
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case OSF1_SIGIGNORE_MASK:
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{
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struct sys_sigaction_args sa_args;
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struct sigaction *bsa, sa;
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bsa = stackgap_alloc(&sg, sizeof(struct sigaction));
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SCARG(&sa_args, signum) = signum;
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SCARG(&sa_args, nsa) = bsa;
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SCARG(&sa_args, osa) = NULL;
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sa.sa_handler = SIG_IGN;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = 0;
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if ((error = copyout(&sa, bsa, sizeof(sa))) != 0)
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return error;
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if ((error = sys_sigaction(p, &sa_args, retval)) != 0) {
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DPRINTF(("sigignore: sigaction failed\n"));
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return error;
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}
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return 0;
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}
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case OSF1_SIGPAUSE_MASK:
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{
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struct sys_sigsuspend_args sa;
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SCARG(&sa, mask) = p->p_sigmask & ~sigmask(signum);
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return sys_sigsuspend(p, &sa, retval);
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}
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default:
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return ENOSYS;
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}
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}
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|
|
int
|
|
osf1_sys_sigprocmask(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_sigprocmask_args *uap = v;
|
|
osf1_sigset_t oss;
|
|
sigset_t bss;
|
|
int error = 0;
|
|
|
|
if (SCARG(uap, oset) != NULL) {
|
|
/* Fix the return value first if needed */
|
|
bsd_to_osf1_sigset(&p->p_sigmask, &oss);
|
|
if ((error = copyout(&oss, SCARG(uap, oset), sizeof(oss))) != 0)
|
|
return error;
|
|
}
|
|
|
|
if (SCARG(uap, set) == NULL)
|
|
/* Just examine */
|
|
return 0;
|
|
|
|
if ((error = copyin(SCARG(uap, set), &oss, sizeof(oss))) != 0)
|
|
return error;
|
|
|
|
osf1_to_bsd_sigset(&oss, &bss);
|
|
|
|
(void) splhigh();
|
|
|
|
switch (SCARG(uap, how)) {
|
|
case OSF1_SIG_BLOCK:
|
|
p->p_sigmask |= bss & ~sigcantmask;
|
|
break;
|
|
|
|
case OSF1_SIG_UNBLOCK:
|
|
p->p_sigmask &= ~bss;
|
|
break;
|
|
|
|
case OSF1_SIG_SETMASK:
|
|
p->p_sigmask = bss & ~sigcantmask;
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
(void) spl0();
|
|
|
|
return error;
|
|
}
|
|
|
|
int
|
|
osf1_sys_sigpending(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_sigpending_args *uap = v;
|
|
sigset_t bss;
|
|
osf1_sigset_t oss;
|
|
|
|
bss = p->p_siglist & p->p_sigmask;
|
|
bsd_to_osf1_sigset(&bss, &oss);
|
|
|
|
return copyout(&oss, SCARG(uap, mask), sizeof(oss));
|
|
}
|
|
|
|
int
|
|
osf1_sys_sigsuspend(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_sigsuspend_args *uap = v;
|
|
osf1_sigset_t oss;
|
|
sigset_t bss;
|
|
struct sys_sigsuspend_args sa;
|
|
int error;
|
|
|
|
if ((error = copyin(SCARG(uap, ss), &oss, sizeof(oss))) != 0)
|
|
return error;
|
|
|
|
osf1_to_bsd_sigset(&oss, &bss);
|
|
|
|
SCARG(&sa, mask) = bss;
|
|
return sys_sigsuspend(p, &sa, retval);
|
|
}
|
|
|
|
int
|
|
osf1_sys_kill(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_kill_args *uap = v;
|
|
struct sys_kill_args ka;
|
|
|
|
SCARG(&ka, pid) = SCARG(uap, pid);
|
|
SCARG(&ka, signum) = osf1_to_bsd_sig[SCARG(uap, signum)];
|
|
return sys_kill(p, &ka, retval);
|
|
}
|
|
#endif
|