int
abi_sigprocmask(int how, u_long *abinset, u_long *abioset)
{
sigset_t new_set, *nset = NULL;
sigset_t old_set, *oset = NULL;
u_long new_set_abi, old_set_abi;
mm_segment_t fs;
int error;
if (abinset) {
get_user(new_set_abi, abinset);
new_set = map_sigvec_to_kernel(new_set_abi,
current_thread_info()->exec_domain->signal_map);
nset = &new_set;
}
if (abioset)
oset = &old_set;
fs = get_fs();
set_fs(get_ds());
error = SYS(rt_sigprocmask,howcnv[how], nset, oset, sizeof(sigset_t));
set_fs(fs);
if (!error && abioset) {
old_set_abi = map_sigvec_from_kernel(old_set,
current_thread_info()->exec_domain->signal_invmap);
put_user(old_set_abi, abioset);
}
return (error);
}
asmlinkage int
abi_sigprocmask(int how, unsigned long *abinset, unsigned long *abioset)
{
sigset_t new_set, *nset, old_set, *oset;
unsigned long new_set_abi, old_set_abi;
mm_segment_t old_fs;
int error;
nset = oset = NULL;
if (abinset) {
get_user(new_set_abi, abinset);
new_set = map_sigvec_to_kernel(new_set_abi,
current->exec_domain->signal_map);
nset = &new_set;
}
if (abioset)
oset = &old_set;
old_fs = get_fs();
set_fs(get_ds());
error = SYS(rt_sigprocmask)(howcnv[how], nset, oset, sizeof(sigset_t));
set_fs(old_fs);
if (!error && abioset) {
old_set_abi = map_sigvec_from_kernel(old_set,
current->exec_domain->signal_invmap);
put_user(old_set_abi, abioset);
}
return error;
}
/*
* This function is used to handle the sigaction call from SVr4 binaries.
*
* If anyone else uses this, this function needs to be modified since the
* order and size of the ibcs_sigaction structure is different in ibcs
* and the SVr4 ABI
*/
int
abi_sigaction(int abi_signum, const struct abi_sigaction *action,
struct abi_sigaction *oldaction)
{
struct abi_sigaction new_sa, old_sa;
struct sigaction nsa, osa;
mm_segment_t fs;
int error, signo;
signo = abi_mapsig(abi_signum);
if (signo == -1)
return -EINVAL;
if (oldaction) {
if (!access_ok(VERIFY_WRITE, oldaction,
sizeof(struct abi_sigaction)))
return (-EFAULT);
}
if (action) {
error = copy_from_user(&new_sa, action,
sizeof(struct abi_sigaction));
if (error)
return (-EFAULT);
nsa.sa_handler = new_sa.sa_handler;
nsa.sa_mask = map_sigvec_to_kernel(new_sa.sa_mask,
current_thread_info()->exec_domain->signal_map);
nsa.sa_flags = SA_SIGINFO;
if (new_sa.sa_flags & ABI_SA_ONSTACK)
nsa.sa_flags |= SA_ONSTACK;
if (new_sa.sa_flags & ABI_SA_RESTART)
nsa.sa_flags |= SA_RESTART;
if (new_sa.sa_flags & ABI_SA_NODEFER)
nsa.sa_flags |= SA_NODEFER;
if (new_sa.sa_flags & ABI_SA_RESETHAND)
nsa.sa_flags |= SA_RESETHAND;
if (new_sa.sa_flags & ABI_SA_NOCLDSTOP)
nsa.sa_flags |= SA_NOCLDSTOP;
if (new_sa.sa_flags & ABI_SA_NOCLDWAIT)
nsa.sa_flags |= SA_NOCLDWAIT;
nsa.sa_restorer = (void *)abi_sigret(__NR_rt_sigaction);
if (nsa.sa_restorer) nsa.sa_flags |= SA_RESTORER;
}
fs = get_fs();
set_fs(get_ds());
error = SYS(rt_sigaction,signo, action ? &nsa : NULL,
oldaction ? &osa : NULL, sizeof(sigset_t));
set_fs(fs);
if (error || !oldaction)
return (error);
old_sa.sa_handler = osa.sa_handler;
old_sa.sa_mask = map_sigvec_from_kernel(osa.sa_mask,
current_thread_info()->exec_domain->signal_invmap);
old_sa.sa_flags = 0;
if (osa.sa_flags & SA_ONSTACK)
old_sa.sa_flags |= ABI_SA_ONSTACK;
if (osa.sa_flags & SA_RESTART)
old_sa.sa_flags |= ABI_SA_RESTART;
if (osa.sa_flags & SA_NODEFER)
old_sa.sa_flags |= ABI_SA_NODEFER;
if (osa.sa_flags & SA_RESETHAND)
old_sa.sa_flags |= ABI_SA_RESETHAND;
if (osa.sa_flags & SA_NOCLDSTOP)
old_sa.sa_flags |= ABI_SA_NOCLDSTOP;
if (osa.sa_flags & SA_NOCLDWAIT)
old_sa.sa_flags |= ABI_SA_NOCLDWAIT;
/*
* We already did the verify_area at the beginning.
*/
if (__copy_to_user(oldaction, &old_sa, sizeof(struct abi_sigaction)))
return -EFAULT;
return 0;
}
asmlinkage int abi_sigaction(int abi_signum, const struct abi_sigaction * action,
struct abi_sigaction * oldaction)
{
struct abi_sigaction new_sa, old_sa;
int error, signo;
mm_segment_t old_fs;
struct sigaction nsa, osa;
signo = abi_mapsig(abi_signum);
if (signo == -1)
return -EINVAL;
if (oldaction) {
error = verify_area(VERIFY_WRITE, oldaction,
sizeof(struct abi_sigaction));
if (error)
return error;
}
if (action) {
error = copy_from_user(&new_sa, action,
sizeof(struct abi_sigaction));
if (error)
return -EFAULT;
nsa.sa_restorer = NULL;
nsa.sa_handler = new_sa.sa_handler;
nsa.sa_mask = map_sigvec_to_kernel(new_sa.sa_mask,
current->exec_domain->signal_map);
if(new_sa.sa_flags & ABI_SA_ONSTACK)
nsa.sa_flags |= SA_ONSTACK;
if(new_sa.sa_flags & ABI_SA_RESTART)
nsa.sa_flags |= SA_RESTART;
if(new_sa.sa_flags & ABI_SA_NODEFER)
nsa.sa_flags |= SA_NODEFER;
if(new_sa.sa_flags & ABI_SA_RESETHAND)
nsa.sa_flags |= SA_RESETHAND;
if(new_sa.sa_flags & ABI_SA_NOCLDSTOP)
nsa.sa_flags |= SA_NOCLDSTOP;
if(new_sa.sa_flags & ABI_SA_NOCLDWAIT)
nsa.sa_flags |= SA_NOCLDWAIT;
}
old_fs = get_fs();
set_fs(get_ds());
error = SYS(rt_sigaction)(signo,
action ? &nsa : NULL,
oldaction ? &osa : NULL,
sizeof(sigset_t));
set_fs(old_fs);
if (!error && oldaction) {
old_sa.sa_handler = osa.sa_handler;
old_sa.sa_mask = map_sigvec_from_kernel(osa.sa_mask,
current->exec_domain->signal_invmap);
old_sa.sa_flags = 0;
if(osa.sa_flags & SA_ONSTACK)
old_sa.sa_flags |= ABI_SA_ONSTACK;
if(osa.sa_flags & SA_RESTART)
old_sa.sa_flags |= ABI_SA_RESTART;
if(osa.sa_flags & SA_NODEFER)
old_sa.sa_flags |= ABI_SA_NODEFER;
if(osa.sa_flags & SA_RESETHAND)
old_sa.sa_flags |= ABI_SA_RESETHAND;
if(osa.sa_flags & SA_NOCLDSTOP)
old_sa.sa_flags |= ABI_SA_NOCLDSTOP;
if(osa.sa_flags & SA_NOCLDWAIT)
old_sa.sa_flags |= ABI_SA_NOCLDWAIT;
/* This should never fail... */
copy_to_user(oldaction, &old_sa, sizeof(struct abi_sigaction));
}
return error;
}
