fb919e4d5a
other "system" header files. Also help the deprecation of lockmgr.h by making it a sub-include of sys/lock.h and removing sys/lockmgr.h form kernel .c files. Sort sys/*.h includes where possible in affected files. OK'ed by: bde (with reservations)
505 lines
12 KiB
C
505 lines
12 KiB
C
/*
|
|
* Copyright (c) 1995 Scott Bartram
|
|
* Copyright (c) 1995 Steven Wallace
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/signalvar.h>
|
|
#include <sys/sysproto.h>
|
|
|
|
#include <i386/ibcs2/ibcs2_types.h>
|
|
#include <i386/ibcs2/ibcs2_signal.h>
|
|
#include <i386/ibcs2/ibcs2_proto.h>
|
|
#include <i386/ibcs2/ibcs2_xenix.h>
|
|
#include <i386/ibcs2/ibcs2_util.h>
|
|
|
|
#define sigemptyset(s) SIGEMPTYSET(*(s))
|
|
#define sigismember(s, n) SIGISMEMBER(*(s), n)
|
|
#define sigaddset(s, n) SIGADDSET(*(s), n)
|
|
|
|
#define ibcs2_sigmask(n) (1 << ((n) - 1))
|
|
#define ibcs2_sigemptyset(s) bzero((s), sizeof(*(s)))
|
|
#define ibcs2_sigismember(s, n) (*(s) & ibcs2_sigmask(n))
|
|
#define ibcs2_sigaddset(s, n) (*(s) |= ibcs2_sigmask(n))
|
|
|
|
static void ibcs2_to_bsd_sigset __P((const ibcs2_sigset_t *, sigset_t *));
|
|
static void bsd_to_ibcs2_sigset __P((const sigset_t *, ibcs2_sigset_t *));
|
|
static void ibcs2_to_bsd_sigaction __P((struct ibcs2_sigaction *,
|
|
struct sigaction *));
|
|
static void bsd_to_ibcs2_sigaction __P((struct sigaction *,
|
|
struct ibcs2_sigaction *));
|
|
|
|
int bsd_to_ibcs2_sig[IBCS2_SIGTBLSZ] = {
|
|
IBCS2_SIGHUP, /* 1 */
|
|
IBCS2_SIGINT, /* 2 */
|
|
IBCS2_SIGQUIT, /* 3 */
|
|
IBCS2_SIGILL, /* 4 */
|
|
IBCS2_SIGTRAP, /* 5 */
|
|
IBCS2_SIGABRT, /* 6 */
|
|
IBCS2_SIGEMT, /* 7 */
|
|
IBCS2_SIGFPE, /* 8 */
|
|
IBCS2_SIGKILL, /* 9 */
|
|
IBCS2_SIGBUS, /* 10 */
|
|
IBCS2_SIGSEGV, /* 11 */
|
|
IBCS2_SIGSYS, /* 12 */
|
|
IBCS2_SIGPIPE, /* 13 */
|
|
IBCS2_SIGALRM, /* 14 */
|
|
IBCS2_SIGTERM, /* 15 */
|
|
0, /* 16 - SIGURG */
|
|
IBCS2_SIGSTOP, /* 17 */
|
|
IBCS2_SIGTSTP, /* 18 */
|
|
IBCS2_SIGCONT, /* 19 */
|
|
IBCS2_SIGCLD, /* 20 */
|
|
IBCS2_SIGTTIN, /* 21 */
|
|
IBCS2_SIGTTOU, /* 22 */
|
|
IBCS2_SIGPOLL, /* 23 */
|
|
0, /* 24 - SIGXCPU */
|
|
0, /* 25 - SIGXFSZ */
|
|
IBCS2_SIGVTALRM, /* 26 */
|
|
IBCS2_SIGPROF, /* 27 */
|
|
IBCS2_SIGWINCH, /* 28 */
|
|
0, /* 29 */
|
|
IBCS2_SIGUSR1, /* 30 */
|
|
IBCS2_SIGUSR2, /* 31 */
|
|
0 /* 32 */
|
|
};
|
|
|
|
static int ibcs2_to_bsd_sig[IBCS2_SIGTBLSZ] = {
|
|
SIGHUP, /* 1 */
|
|
SIGINT, /* 2 */
|
|
SIGQUIT, /* 3 */
|
|
SIGILL, /* 4 */
|
|
SIGTRAP, /* 5 */
|
|
SIGABRT, /* 6 */
|
|
SIGEMT, /* 7 */
|
|
SIGFPE, /* 8 */
|
|
SIGKILL, /* 9 */
|
|
SIGBUS, /* 10 */
|
|
SIGSEGV, /* 11 */
|
|
SIGSYS, /* 12 */
|
|
SIGPIPE, /* 13 */
|
|
SIGALRM, /* 14 */
|
|
SIGTERM, /* 15 */
|
|
SIGUSR1, /* 16 */
|
|
SIGUSR2, /* 17 */
|
|
SIGCHLD, /* 18 */
|
|
0, /* 19 - SIGPWR */
|
|
SIGWINCH, /* 20 */
|
|
0, /* 21 */
|
|
SIGIO, /* 22 */
|
|
SIGSTOP, /* 23 */
|
|
SIGTSTP, /* 24 */
|
|
SIGCONT, /* 25 */
|
|
SIGTTIN, /* 26 */
|
|
SIGTTOU, /* 27 */
|
|
SIGVTALRM, /* 28 */
|
|
SIGPROF, /* 29 */
|
|
0, /* 30 */
|
|
0, /* 31 */
|
|
0 /* 32 */
|
|
};
|
|
|
|
void
|
|
ibcs2_to_bsd_sigset(iss, bss)
|
|
const ibcs2_sigset_t *iss;
|
|
sigset_t *bss;
|
|
{
|
|
int i, newsig;
|
|
|
|
sigemptyset(bss);
|
|
for (i = 1; i <= IBCS2_SIGTBLSZ; i++) {
|
|
if (ibcs2_sigismember(iss, i)) {
|
|
newsig = ibcs2_to_bsd_sig[_SIG_IDX(i)];
|
|
if (newsig)
|
|
sigaddset(bss, newsig);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
bsd_to_ibcs2_sigset(bss, iss)
|
|
const sigset_t *bss;
|
|
ibcs2_sigset_t *iss;
|
|
{
|
|
int i, newsig;
|
|
|
|
ibcs2_sigemptyset(iss);
|
|
for (i = 1; i <= IBCS2_SIGTBLSZ; i++) {
|
|
if (sigismember(bss, i)) {
|
|
newsig = bsd_to_ibcs2_sig[_SIG_IDX(i)];
|
|
if (newsig)
|
|
ibcs2_sigaddset(iss, newsig);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
ibcs2_to_bsd_sigaction(isa, bsa)
|
|
struct ibcs2_sigaction *isa;
|
|
struct sigaction *bsa;
|
|
{
|
|
|
|
bsa->sa_handler = isa->isa_handler;
|
|
ibcs2_to_bsd_sigset(&isa->isa_mask, &bsa->sa_mask);
|
|
bsa->sa_flags = 0; /* ??? SA_NODEFER */
|
|
if ((isa->isa_flags & IBCS2_SA_NOCLDSTOP) != 0)
|
|
bsa->sa_flags |= SA_NOCLDSTOP;
|
|
}
|
|
|
|
static void
|
|
bsd_to_ibcs2_sigaction(bsa, isa)
|
|
struct sigaction *bsa;
|
|
struct ibcs2_sigaction *isa;
|
|
{
|
|
|
|
isa->isa_handler = bsa->sa_handler;
|
|
bsd_to_ibcs2_sigset(&bsa->sa_mask, &isa->isa_mask);
|
|
isa->isa_flags = 0;
|
|
if ((bsa->sa_flags & SA_NOCLDSTOP) != 0)
|
|
isa->isa_flags |= IBCS2_SA_NOCLDSTOP;
|
|
}
|
|
|
|
int
|
|
ibcs2_sigaction(p, uap)
|
|
register struct proc *p;
|
|
struct ibcs2_sigaction_args *uap;
|
|
{
|
|
struct ibcs2_sigaction *nisa, *oisa, tmpisa;
|
|
struct sigaction *nbsa, *obsa, tmpbsa;
|
|
struct sigaction_args sa;
|
|
caddr_t sg;
|
|
int error;
|
|
|
|
sg = stackgap_init();
|
|
nisa = SCARG(uap, act);
|
|
oisa = SCARG(uap, oact);
|
|
|
|
if (oisa != NULL)
|
|
obsa = stackgap_alloc(&sg, sizeof(struct sigaction));
|
|
else
|
|
obsa = NULL;
|
|
|
|
if (nisa != NULL) {
|
|
nbsa = stackgap_alloc(&sg, sizeof(struct sigaction));
|
|
if ((error = copyin(nisa, &tmpisa, sizeof(tmpisa))) != 0)
|
|
return error;
|
|
ibcs2_to_bsd_sigaction(&tmpisa, &tmpbsa);
|
|
if ((error = copyout(&tmpbsa, nbsa, sizeof(tmpbsa))) != 0)
|
|
return error;
|
|
} else
|
|
nbsa = NULL;
|
|
|
|
SCARG(&sa, sig) = ibcs2_to_bsd_sig[_SIG_IDX(SCARG(uap, sig))];
|
|
SCARG(&sa, act) = nbsa;
|
|
SCARG(&sa, oact) = obsa;
|
|
|
|
if ((error = sigaction(p, &sa)) != 0)
|
|
return error;
|
|
|
|
if (oisa != NULL) {
|
|
if ((error = copyin(obsa, &tmpbsa, sizeof(tmpbsa))) != 0)
|
|
return error;
|
|
bsd_to_ibcs2_sigaction(&tmpbsa, &tmpisa);
|
|
if ((error = copyout(&tmpisa, oisa, sizeof(tmpisa))) != 0)
|
|
return error;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ibcs2_sigsys(p, uap)
|
|
register struct proc *p;
|
|
struct ibcs2_sigsys_args *uap;
|
|
{
|
|
struct sigaction sa;
|
|
int signum = ibcs2_to_bsd_sig[_SIG_IDX(IBCS2_SIGNO(SCARG(uap, sig)))];
|
|
int error;
|
|
caddr_t sg = stackgap_init();
|
|
|
|
if (signum <= 0 || signum >= IBCS2_NSIG) {
|
|
if (IBCS2_SIGCALL(SCARG(uap, sig)) == IBCS2_SIGNAL_MASK ||
|
|
IBCS2_SIGCALL(SCARG(uap, sig)) == IBCS2_SIGSET_MASK)
|
|
p->p_retval[0] = (int)IBCS2_SIG_ERR;
|
|
return EINVAL;
|
|
}
|
|
|
|
switch (IBCS2_SIGCALL(SCARG(uap, sig))) {
|
|
case IBCS2_SIGSET_MASK:
|
|
/*
|
|
* Check for SIG_HOLD action.
|
|
* Otherwise, perform signal() except with different sa_flags.
|
|
*/
|
|
if (SCARG(uap, fp) != IBCS2_SIG_HOLD) {
|
|
/* add sig to mask before exececuting signal handler */
|
|
sa.sa_flags = 0;
|
|
goto ibcs2_sigset;
|
|
}
|
|
/* else fallthrough to sighold */
|
|
|
|
case IBCS2_SIGHOLD_MASK:
|
|
{
|
|
sigset_t mask;
|
|
struct sigprocmask_args sa;
|
|
|
|
SIGEMPTYSET(mask);
|
|
SIGADDSET(mask, signum);
|
|
SCARG(&sa, how) = SIG_BLOCK;
|
|
SCARG(&sa, set) = &mask;
|
|
SCARG(&sa, oset) = NULL;
|
|
return sigprocmask(p, &sa);
|
|
}
|
|
|
|
case IBCS2_SIGNAL_MASK:
|
|
{
|
|
struct sigaction_args sa_args;
|
|
struct sigaction *nbsa, *obsa;
|
|
|
|
/* do not automatically block signal */
|
|
sa.sa_flags = SA_NODEFER;
|
|
#ifdef SA_RESETHAND
|
|
if((signum != IBCS2_SIGILL) &&
|
|
(signum != IBCS2_SIGTRAP) &&
|
|
(signum != IBCS2_SIGPWR))
|
|
/* set to SIG_DFL before executing handler */
|
|
sa.sa_flags |= SA_RESETHAND;
|
|
#endif
|
|
ibcs2_sigset:
|
|
nbsa = stackgap_alloc(&sg, sizeof(struct sigaction));
|
|
obsa = stackgap_alloc(&sg, sizeof(struct sigaction));
|
|
SCARG(&sa_args, sig) = signum;
|
|
SCARG(&sa_args, act) = nbsa;
|
|
SCARG(&sa_args, oact) = obsa;
|
|
|
|
sa.sa_handler = SCARG(uap, fp);
|
|
sigemptyset(&sa.sa_mask);
|
|
#if 0
|
|
if (signum != SIGALRM)
|
|
sa.sa_flags |= SA_RESTART;
|
|
#endif
|
|
p->p_retval[0] = (int)IBCS2_SIG_ERR; /* init error return */
|
|
|
|
/* perform native sigaction() */
|
|
if ((error = copyout(&sa, nbsa, sizeof(sa))) != 0)
|
|
return error;
|
|
if ((error = sigaction(p, &sa_args)) != 0) {
|
|
DPRINTF(("signal: sigaction failed: %d\n",
|
|
error));
|
|
return error;
|
|
}
|
|
if ((error = copyin(obsa, &sa, sizeof(sa))) != 0)
|
|
return error;
|
|
p->p_retval[0] = (int)sa.sa_handler;
|
|
|
|
/* special sigset() check */
|
|
if(IBCS2_SIGCALL(SCARG(uap, sig)) == IBCS2_SIGSET_MASK) {
|
|
PROC_LOCK(p);
|
|
/* check to make sure signal is not blocked */
|
|
if(sigismember(&p->p_sigmask, signum)) {
|
|
/* return SIG_HOLD and unblock signal*/
|
|
p->p_retval[0] = (int)IBCS2_SIG_HOLD;
|
|
SIGDELSET(p->p_sigmask, signum);
|
|
}
|
|
PROC_UNLOCK(p);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
case IBCS2_SIGRELSE_MASK:
|
|
{
|
|
sigset_t mask;
|
|
struct sigprocmask_args sa;
|
|
|
|
SIGEMPTYSET(mask);
|
|
SIGADDSET(mask, signum);
|
|
SCARG(&sa, how) = SIG_UNBLOCK;
|
|
SCARG(&sa, set) = &mask;
|
|
SCARG(&sa, oset) = NULL;
|
|
return sigprocmask(p, &sa);
|
|
}
|
|
|
|
case IBCS2_SIGIGNORE_MASK:
|
|
{
|
|
struct sigaction_args sa_args;
|
|
struct sigaction *bsa;
|
|
|
|
bsa = stackgap_alloc(&sg, sizeof(struct sigaction));
|
|
SCARG(&sa_args, sig) = signum;
|
|
SCARG(&sa_args, act) = bsa;
|
|
SCARG(&sa_args, oact) = 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 = sigaction(p, &sa_args)) != 0) {
|
|
DPRINTF(("sigignore: sigaction failed\n"));
|
|
return error;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
case IBCS2_SIGPAUSE_MASK:
|
|
{
|
|
sigset_t mask;
|
|
struct sigsuspend_args sa;
|
|
|
|
PROC_LOCK(p);
|
|
mask = p->p_sigmask;
|
|
PROC_UNLOCK(p);
|
|
SIGDELSET(mask, signum);
|
|
SCARG(&sa, sigmask) = &mask;
|
|
return sigsuspend(p, &sa);
|
|
}
|
|
|
|
default:
|
|
return ENOSYS;
|
|
}
|
|
}
|
|
|
|
int
|
|
ibcs2_sigprocmask(p, uap)
|
|
register struct proc *p;
|
|
struct ibcs2_sigprocmask_args *uap;
|
|
{
|
|
ibcs2_sigset_t iss;
|
|
sigset_t bss;
|
|
int error = 0;
|
|
|
|
if (SCARG(uap, oset) != NULL) {
|
|
/* Fix the return value first if needed */
|
|
PROC_LOCK(p);
|
|
bsd_to_ibcs2_sigset(&p->p_sigmask, &iss);
|
|
PROC_UNLOCK(p);
|
|
if ((error = copyout(&iss, SCARG(uap, oset), sizeof(iss))) != 0)
|
|
return error;
|
|
}
|
|
|
|
if (SCARG(uap, set) == NULL)
|
|
/* Just examine */
|
|
return 0;
|
|
|
|
if ((error = copyin(SCARG(uap, set), &iss, sizeof(iss))) != 0)
|
|
return error;
|
|
|
|
ibcs2_to_bsd_sigset(&iss, &bss);
|
|
|
|
PROC_LOCK(p);
|
|
|
|
switch (SCARG(uap, how)) {
|
|
case IBCS2_SIG_BLOCK:
|
|
SIGSETOR(p->p_sigmask, bss);
|
|
SIG_CANTMASK(p->p_sigmask);
|
|
break;
|
|
|
|
case IBCS2_SIG_UNBLOCK:
|
|
SIGSETNAND(p->p_sigmask, bss);
|
|
break;
|
|
|
|
case IBCS2_SIG_SETMASK:
|
|
p->p_sigmask = bss;
|
|
SIG_CANTMASK(p->p_sigmask);
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
PROC_UNLOCK(p);
|
|
|
|
return error;
|
|
}
|
|
|
|
int
|
|
ibcs2_sigpending(p, uap)
|
|
register struct proc *p;
|
|
struct ibcs2_sigpending_args *uap;
|
|
{
|
|
sigset_t bss;
|
|
ibcs2_sigset_t iss;
|
|
|
|
PROC_LOCK(p);
|
|
bss = p->p_siglist;
|
|
SIGSETAND(bss, p->p_sigmask);
|
|
PROC_UNLOCK(p);
|
|
bsd_to_ibcs2_sigset(&bss, &iss);
|
|
|
|
return copyout(&iss, SCARG(uap, mask), sizeof(iss));
|
|
}
|
|
|
|
int
|
|
ibcs2_sigsuspend(p, uap)
|
|
register struct proc *p;
|
|
struct ibcs2_sigsuspend_args *uap;
|
|
{
|
|
ibcs2_sigset_t sss;
|
|
sigset_t bss;
|
|
struct sigsuspend_args sa;
|
|
int error;
|
|
|
|
if ((error = copyin(SCARG(uap, mask), &sss, sizeof(sss))) != 0)
|
|
return error;
|
|
|
|
ibcs2_to_bsd_sigset(&sss, &bss);
|
|
SCARG(&sa, sigmask) = &bss;
|
|
return sigsuspend(p, &sa);
|
|
}
|
|
|
|
int
|
|
ibcs2_pause(p, uap)
|
|
register struct proc *p;
|
|
struct ibcs2_pause_args *uap;
|
|
{
|
|
sigset_t mask;
|
|
struct sigsuspend_args sa;
|
|
|
|
PROC_LOCK(p);
|
|
mask = p->p_sigmask;
|
|
PROC_UNLOCK(p);
|
|
SCARG(&sa, sigmask) = &mask;
|
|
return sigsuspend(p, &sa);
|
|
}
|
|
|
|
int
|
|
ibcs2_kill(p, uap)
|
|
register struct proc *p;
|
|
struct ibcs2_kill_args *uap;
|
|
{
|
|
struct kill_args ka;
|
|
|
|
SCARG(&ka, pid) = SCARG(uap, pid);
|
|
SCARG(&ka, signum) = ibcs2_to_bsd_sig[_SIG_IDX(SCARG(uap, signo))];
|
|
return kill(p, &ka);
|
|
}
|