NetBSD/sys/compat/osf1/osf1_signal.c

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#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/kernel.h>
#include <sys/signal.h>
#include <sys/signalvar.h>
#include <sys/malloc.h>
#include <sys/syscallargs.h>
#include <compat/osf1/osf1_signal.h>
#include <compat/osf1/osf1_syscallargs.h>
#include <compat/osf1/osf1_util.h>
static void bsd_to_osf1_sigaction __P((const struct sigaction *bsa,
struct osf1_sigaction *osa));
static void osf1_to_bsd_sigaction __P((const struct osf1_sigaction *osa,
struct sigaction *bsa));
#define sigemptyset(s) bzero((s), sizeof(*(s)))
#define sigismember(s, n) (*(s) & sigmask(n))
#define sigaddset(s, n) (*(s) |= sigmask(n))
#define osf1_sigmask(n) (1 << ((n) - 1))
#define osf1_sigemptyset(s) bzero((s), sizeof(*(s)))
#define osf1_sigismember(s, n) (*(s) & sigmask(n))
#define osf1_sigaddset(s, n) (*(s) |= sigmask(n))
int bsd_to_osf1_sig[] = {
0,
OSF1_SIGHUP,
OSF1_SIGINT,
OSF1_SIGQUIT,
OSF1_SIGILL,
OSF1_SIGTRAP,
OSF1_SIGABRT,
OSF1_SIGEMT,
OSF1_SIGFPE,
OSF1_SIGKILL,
OSF1_SIGBUS,
OSF1_SIGSEGV,
OSF1_SIGSYS,
OSF1_SIGPIPE,
OSF1_SIGALRM,
OSF1_SIGTERM,
OSF1_SIGURG,
OSF1_SIGSTOP,
OSF1_SIGTSTP,
OSF1_SIGCONT,
OSF1_SIGCHLD,
OSF1_SIGTTIN,
OSF1_SIGTTOU,
OSF1_SIGIO,
OSF1_SIGXCPU,
OSF1_SIGXFSZ,
OSF1_SIGVTALRM,
OSF1_SIGPROF,
OSF1_SIGWINCH,
OSF1_SIGINFO,
OSF1_SIGUSR1,
OSF1_SIGUSR2,
};
int osf1_to_bsd_sig[] = {
0,
SIGHUP,
SIGINT,
SIGQUIT,
SIGILL,
SIGTRAP,
SIGABRT,
SIGEMT,
SIGFPE,
SIGKILL,
SIGBUS,
SIGSEGV,
SIGSYS,
SIGPIPE,
SIGALRM,
SIGTERM,
SIGURG,
SIGSTOP,
SIGTSTP,
SIGCONT,
SIGCHLD,
SIGTTIN,
SIGTTOU,
SIGIO,
SIGXCPU,
SIGXFSZ,
SIGVTALRM,
SIGPROF,
SIGWINCH,
SIGINFO,
SIGUSR1,
SIGUSR2,
};
void
osf1_to_bsd_sigset(oss, bss)
const osf1_sigset_t *oss;
sigset_t *bss;
{
int i, newsig;
sigemptyset(bss);
for (i = 1; i < OSF1_NSIG; i++) {
if (osf1_sigismember(oss, i)) {
newsig = osf1_to_bsd_sig[i];
if (newsig)
sigaddset(bss, newsig);
}
}
}
void
bsd_to_osf1_sigset(bss, oss)
const sigset_t *bss;
osf1_sigset_t *oss;
{
int i, newsig;
osf1_sigemptyset(oss);
for (i = 1; i < NSIG; i++) {
if (sigismember(bss, i)) {
newsig = bsd_to_osf1_sig[i];
if (newsig)
osf1_sigaddset(oss, newsig);
}
}
}
/*
* XXX: Only a subset of the flags is currently implemented.
*/
void
osf1_to_bsd_sigaction(osa, bsa)
const struct osf1_sigaction *osa;
struct sigaction *bsa;
{
bsa->sa_handler = osa->sa_handler;
osf1_to_bsd_sigset(&osa->sa_mask, &bsa->sa_mask);
bsa->sa_flags = 0;
if ((osa->sa_flags & OSF1_SA_ONSTACK) != 0)
bsa->sa_flags |= SA_ONSTACK;
if ((osa->sa_flags & OSF1_SA_RESTART) != 0)
bsa->sa_flags |= SA_RESTART;
if ((osa->sa_flags & OSF1_SA_RESETHAND) != 0)
bsa->sa_flags |= SA_RESETHAND;
if ((osa->sa_flags & OSF1_SA_NOCLDSTOP) != 0)
bsa->sa_flags |= SA_NOCLDSTOP;
if ((osa->sa_flags & OSF1_SA_NODEFER) != 0)
bsa->sa_flags |= SA_NODEFER;
}
void
bsd_to_osf1_sigaction(bsa, osa)
const struct sigaction *bsa;
struct osf1_sigaction *osa;
{
osa->sa_handler = bsa->sa_handler;
bsd_to_osf1_sigset(&bsa->sa_mask, &osa->sa_mask);
osa->sa_flags = 0;
if ((bsa->sa_flags & SA_ONSTACK) != 0)
osa->sa_flags |= SA_ONSTACK;
if ((bsa->sa_flags & SA_RESTART) != 0)
osa->sa_flags |= SA_RESTART;
if ((bsa->sa_flags & SA_NOCLDSTOP) != 0)
osa->sa_flags |= SA_NOCLDSTOP;
if ((bsa->sa_flags & SA_NODEFER) != 0)
osa->sa_flags |= SA_NODEFER;
if ((bsa->sa_flags & SA_RESETHAND) != 0)
osa->sa_flags |= SA_RESETHAND;
}
void
osf1_to_bsd_sigaltstack(oss, bss)
const struct osf1_sigaltstack *oss;
struct sigaltstack *bss;
{
bss->ss_sp = oss->ss_sp;
bss->ss_size = oss->ss_size;
bss->ss_flags = 0;
if ((oss->ss_flags & OSF1_SS_DISABLE) != 0)
bss->ss_flags |= SS_DISABLE;
if ((oss->ss_flags & OSF1_SS_ONSTACK) != 0)
bss->ss_flags |= SS_ONSTACK;
}
void
bsd_to_osf1_sigaltstack(bss, oss)
const struct sigaltstack *bss;
struct osf1_sigaltstack *oss;
{
oss->ss_sp = bss->ss_sp;
oss->ss_size = bss->ss_size;
oss->ss_flags = 0;
if ((bss->ss_flags & SS_DISABLE) != 0)
oss->ss_flags |= OSF1_SS_DISABLE;
if ((bss->ss_flags & SS_ONSTACK) != 0)
oss->ss_flags |= OSF1_SS_ONSTACK;
}
int
osf1_sys_sigaction(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_sigaction_args /* {
syscallarg(int) signum;
syscallarg(struct osf1_sigaction *) nsa;
syscallarg(struct osf1_sigaction *) osa;
} */ *uap = v;
struct osf1_sigaction *nosa, *oosa, tmposa;
struct sigaction *nbsa, *obsa, tmpbsa;
struct sys_sigaction_args sa;
caddr_t sg;
int error;
sg = stackgap_init(p->p_emul);
nosa = SCARG(uap, nsa);
oosa = SCARG(uap, osa);
if (oosa != NULL)
obsa = stackgap_alloc(&sg, sizeof(struct sigaction));
else
obsa = NULL;
if (nosa != NULL) {
nbsa = stackgap_alloc(&sg, sizeof(struct sigaction));
if ((error = copyin(nosa, &tmposa, sizeof(tmposa))) != 0)
return error;
osf1_to_bsd_sigaction(&tmposa, &tmpbsa);
if ((error = copyout(&tmpbsa, nbsa, sizeof(tmpbsa))) != 0)
return error;
} else
nbsa = NULL;
SCARG(&sa, signum) = osf1_to_bsd_sig[SCARG(uap, signum)];
SCARG(&sa, nsa) = nbsa;
SCARG(&sa, osa) = obsa;
if ((error = sys_sigaction(p, &sa, retval)) != 0)
return error;
if (oosa != NULL) {
if ((error = copyin(obsa, &tmpbsa, sizeof(tmpbsa))) != 0)
return error;
bsd_to_osf1_sigaction(&tmpbsa, &tmposa);
if ((error = copyout(&tmposa, oosa, sizeof(tmposa))) != 0)
return error;
}
return 0;
}
int
osf1_sys_sigaltstack(p, v, retval)
register struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_sigaltstack_args /* {
syscallarg(struct osf1_sigaltstack *) nss;
syscallarg(struct osf1_sigaltstack *) oss;
} */ *uap = v;
struct osf1_sigaltstack *noss, *ooss, tmposs;
struct sigaltstack *nbss, *obss, tmpbss;
struct sys_sigaltstack_args sa;
caddr_t sg;
int error;
sg = stackgap_init(p->p_emul);
noss = SCARG(uap, nss);
ooss = SCARG(uap, oss);
if (ooss != NULL)
obss = stackgap_alloc(&sg, sizeof(struct sigaltstack));
else
obss = NULL;
if (noss != NULL) {
nbss = stackgap_alloc(&sg, sizeof(struct sigaltstack));
if ((error = copyin(noss, &tmposs, sizeof(tmposs))) != 0)
return error;
osf1_to_bsd_sigaltstack(&tmposs, &tmpbss);
if ((error = copyout(&tmpbss, nbss, sizeof(tmpbss))) != 0)
return error;
} else
nbss = NULL;
SCARG(&sa, nss) = nbss;
SCARG(&sa, oss) = obss;
if ((error = sys_sigaltstack(p, &sa, retval)) != 0)
return error;
if (obss != NULL) {
if ((error = copyin(obss, &tmpbss, sizeof(tmpbss))) != 0)
return error;
bsd_to_osf1_sigaltstack(&tmpbss, &tmposs);
if ((error = copyout(&tmposs, ooss, sizeof(tmposs))) != 0)
return error;
}
return 0;
}
#if 0
int
osf1_sys_signal(p, v, retval)
register struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_signal_args /* {
syscallarg(int) signum;
syscallarg(osf1_sig_t) handler;
} */ *uap = v;
int signum = osf1_to_bsd_sig[OSF1_SIGNO(SCARG(uap, signum))];
int error;
caddr_t sg = stackgap_init(p->p_emul);
if (signum <= 0 || signum >= OSF1_NSIG) {
if (OSF1_SIGCALL(SCARG(uap, signum)) == OSF1_SIGNAL_MASK ||
OSF1_SIGCALL(SCARG(uap, signum)) == OSF1_SIGDEFER_MASK)
*retval = (int)OSF1_SIG_ERR;
return EINVAL;
}
switch (OSF1_SIGCALL(SCARG(uap, signum))) {
case OSF1_SIGDEFER_MASK:
/*
* sigset is identical to signal() except
* that SIG_HOLD is allowed as
* an action.
*/
if (SCARG(uap, handler) == OSF1_SIG_HOLD) {
struct sys_sigprocmask_args sa;
SCARG(&sa, how) = SIG_BLOCK;
SCARG(&sa, mask) = sigmask(signum);
return sys_sigprocmask(p, &sa, retval);
}
/* FALLTHROUGH */
case OSF1_SIGNAL_MASK:
{
struct sys_sigaction_args sa_args;
struct sigaction *nbsa, *obsa, sa;
nbsa = stackgap_alloc(&sg, sizeof(struct sigaction));
obsa = stackgap_alloc(&sg, sizeof(struct sigaction));
SCARG(&sa_args, signum) = signum;
SCARG(&sa_args, nsa) = nbsa;
SCARG(&sa_args, osa) = obsa;
sa.sa_handler = SCARG(uap, handler);
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
#if 0
if (signum != SIGALRM)
sa.sa_flags = SA_RESTART;
#endif
if ((error = copyout(&sa, nbsa, sizeof(sa))) != 0)
return error;
if ((error = sys_sigaction(p, &sa_args, retval)) != 0) {
DPRINTF(("signal: sigaction failed: %d\n",
error));
*retval = (int)OSF1_SIG_ERR;
return error;
}
if ((error = copyin(obsa, &sa, sizeof(sa))) != 0)
return error;
*retval = (int)sa.sa_handler;
return 0;
}
case OSF1_SIGHOLD_MASK:
{
struct sys_sigprocmask_args sa;
SCARG(&sa, how) = SIG_BLOCK;
SCARG(&sa, mask) = sigmask(signum);
return sys_sigprocmask(p, &sa, retval);
}
case OSF1_SIGRELSE_MASK:
{
struct sys_sigprocmask_args sa;
SCARG(&sa, how) = SIG_UNBLOCK;
SCARG(&sa, mask) = sigmask(signum);
return sys_sigprocmask(p, &sa, retval);
}
case OSF1_SIGIGNORE_MASK:
{
struct sys_sigaction_args sa_args;
struct sigaction *bsa, sa;
bsa = stackgap_alloc(&sg, sizeof(struct sigaction));
SCARG(&sa_args, signum) = signum;
SCARG(&sa_args, nsa) = bsa;
SCARG(&sa_args, osa) = NULL;
sa.sa_handler = SIG_IGN;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
if ((error = copyout(&sa, bsa, sizeof(sa))) != 0)
return error;
if ((error = sys_sigaction(p, &sa_args, retval)) != 0) {
DPRINTF(("sigignore: sigaction failed\n"));
return error;
}
return 0;
}
case OSF1_SIGPAUSE_MASK:
{
struct sys_sigsuspend_args sa;
SCARG(&sa, mask) = p->p_sigmask & ~sigmask(signum);
return sys_sigsuspend(p, &sa, retval);
}
default:
return ENOSYS;
}
}
int
osf1_sys_sigprocmask(p, v, retval)
register struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_sigprocmask_args /* {
syscallarg(int) how;
syscallarg(osf1_sigset_t *) set;
syscallarg(osf1_sigset_t *) oset;
} */ *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)
register struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_sigpending_args /* {
syscallarg(osf1_sigset_t *) mask;
} */ *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)
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