381 lines
9.3 KiB
C
381 lines
9.3 KiB
C
/* $NetBSD: osf1_signal.c,v 1.21 2002/04/08 14:51:29 christos 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/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: osf1_signal.c,v 1.21 2002/04/08 14:51:29 christos Exp $");
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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/common/compat_util.h>
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#include <compat/osf1/osf1_cvt.h>
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#if 0
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int
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osf1_sys_kill(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_kill_args *uap = v;
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struct sys_kill_args ka;
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SCARG(&ka, pid) = SCARG(uap, pid);
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SCARG(&ka, signum) = osf1_to_native_signo[SCARG(uap, signum)];
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return sys_kill(p, &ka, retval);
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}
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#endif
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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, 0);
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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(p, &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(p, &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_cvt_sigaction_to_native(&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_native_signo[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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osf1_cvt_sigaction_from_native(&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, 0);
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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(p, &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(p, &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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if ((error = osf1_cvt_sigaltstack_to_native(&tmposs, &tmpbss)) != 0)
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return error;
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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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osf1_cvt_sigaltstack_from_native(&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_native_signo[OSF1_SIGNO(SCARG(uap, signum))];
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int error;
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caddr_t sg = stackgap_init(p, 0);
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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(p, &sg, sizeof(struct sigaction));
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obsa = stackgap_alloc(p, &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(p, &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
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osf1_sys_sigpending(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_sigpending_args *uap = v;
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sigset_t bss;
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osf1_sigset_t oss;
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bss = p->p_siglist & p->p_sigmask;
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osf1_cvt_sigset_from_native(&bss, &oss);
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return copyout(&oss, SCARG(uap, mask), sizeof(oss));
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}
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int
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osf1_sys_sigprocmask(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_sigprocmask_args *uap = v;
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osf1_sigset_t oss;
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sigset_t bss;
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int error = 0;
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if (SCARG(uap, oset) != NULL) {
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/* Fix the return value first if needed */
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osf1_cvt_sigset_from_native(&p->p_sigmask, &oss);
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if ((error = copyout(&oss, SCARG(uap, oset), sizeof(oss))) != 0)
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return error;
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}
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if (SCARG(uap, set) == NULL)
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/* Just examine */
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return 0;
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if ((error = copyin(SCARG(uap, set), &oss, sizeof(oss))) != 0)
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return error;
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osf1_cvt_sigset_to_native(&oss, &bss);
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(void) splsched(); /* XXXSMP */
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switch (SCARG(uap, how)) {
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case OSF1_SIG_BLOCK:
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p->p_sigmask |= bss & ~sigcantmask;
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break;
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case OSF1_SIG_UNBLOCK:
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p->p_sigmask &= ~bss;
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break;
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case OSF1_SIG_SETMASK:
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p->p_sigmask = bss & ~sigcantmask;
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break;
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default:
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error = EINVAL;
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break;
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}
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(void) spl0();
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return error;
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}
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int
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osf1_sys_sigsuspend(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_sigsuspend_args *uap = v;
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osf1_sigset_t oss;
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sigset_t bss;
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struct sys_sigsuspend_args sa;
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int error;
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if ((error = copyin(SCARG(uap, ss), &oss, sizeof(oss))) != 0)
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return error;
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osf1_cvt_sigset_to_native(&oss, &bss);
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SCARG(&sa, mask) = bss;
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return sys_sigsuspend(p, &sa, retval);
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}
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#endif
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