558 lines
12 KiB
C
558 lines
12 KiB
C
#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_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 sigemptyset(s) bzero((s), sizeof(*(s)))
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#define sigismember(s, n) (*(s) & sigmask(n))
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#define sigaddset(s, n) (*(s) |= sigmask(n))
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#define osf1_sigmask(n) (1 << ((n) - 1))
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#define osf1_sigemptyset(s) bzero((s), sizeof(*(s)))
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#define osf1_sigismember(s, n) (*(s) & sigmask(n))
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#define osf1_sigaddset(s, n) (*(s) |= 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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/*
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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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bsa->sa_flags = 0;
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if ((osa->sa_flags & OSF1_SA_ONSTACK) != 0)
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bsa->sa_flags |= SA_ONSTACK;
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if ((osa->sa_flags & OSF1_SA_RESTART) != 0)
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bsa->sa_flags |= SA_RESTART;
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if ((osa->sa_flags & OSF1_SA_RESETHAND) != 0)
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bsa->sa_flags |= SA_RESETHAND;
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if ((osa->sa_flags & OSF1_SA_NOCLDSTOP) != 0)
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bsa->sa_flags |= SA_NOCLDSTOP;
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if ((osa->sa_flags & OSF1_SA_NODEFER) != 0)
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bsa->sa_flags |= SA_NODEFER;
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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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osa->sa_flags = 0;
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if ((bsa->sa_flags & SA_ONSTACK) != 0)
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osa->sa_flags |= SA_ONSTACK;
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if ((bsa->sa_flags & SA_RESTART) != 0)
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osa->sa_flags |= SA_RESTART;
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if ((bsa->sa_flags & SA_NOCLDSTOP) != 0)
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osa->sa_flags |= SA_NOCLDSTOP;
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if ((bsa->sa_flags & SA_NODEFER) != 0)
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osa->sa_flags |= SA_NODEFER;
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if ((bsa->sa_flags & SA_RESETHAND) != 0)
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osa->sa_flags |= SA_RESETHAND;
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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_base = oss->ss_sp;
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bss->ss_size = oss->ss_size;
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bss->ss_flags = 0;
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if ((oss->ss_flags & OSF1_SS_DISABLE) != 0)
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bss->ss_flags |= SS_DISABLE;
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if ((oss->ss_flags & OSF1_SS_ONSTACK) != 0)
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bss->ss_flags |= SS_ONSTACK;
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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_base;
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oss->ss_size = bss->ss_size;
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oss->ss_flags = 0;
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if ((bss->ss_flags & SS_DISABLE) != 0)
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oss->ss_flags |= OSF1_SS_DISABLE;
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if ((bss->ss_flags & SS_ONSTACK) != 0)
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oss->ss_flags |= OSF1_SS_ONSTACK;
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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 /* {
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syscallarg(int) signum;
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syscallarg(struct osf1_sigaction *) nsa;
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syscallarg(struct osf1_sigaction *) osa;
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} */ *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_sigaction_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_sigaction(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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register 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 /* {
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syscallarg(struct osf1_sigaltstack *) nss;
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syscallarg(struct osf1_sigaltstack *) oss;
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} */ *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_sigaltstack_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_sigaltstack(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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register 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 /* {
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syscallarg(int) signum;
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syscallarg(osf1_sig_t) handler;
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} */ *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
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osf1_sys_sigprocmask(p, v, retval)
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register 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 /* {
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syscallarg(int) how;
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syscallarg(osf1_sigset_t *) set;
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syscallarg(osf1_sigset_t *) oset;
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} */ *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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bsd_to_osf1_sigset(&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_to_bsd_sigset(&oss, &bss);
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(void) splhigh();
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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_sigpending(p, v, retval)
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register 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 /* {
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syscallarg(osf1_sigset_t *) mask;
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} */ *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;
|
|
bsd_to_osf1_sigset(&bss, &oss);
|
|
|
|
return copyout(&oss, SCARG(uap, mask), sizeof(oss));
|
|
}
|
|
|
|
int
|
|
osf1_sys_sigsuspend(p, v, retval)
|
|
register struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_sigsuspend_args /* {
|
|
syscallarg(osf1_sigset_t *) ss;
|
|
} */ *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)
|
|
register struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct osf1_sys_kill_args /* {
|
|
syscallarg(int) pid;
|
|
syscallarg(int) signum;
|
|
} */ *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
|