int
do_sigaltstack32 (const compat_stack_t __user *uss32, compat_stack_t __user *uoss32, unsigned long sp)
{
compat_stack_t ss32, oss32;
stack_t ss, oss;
stack_t *ssp = NULL, *ossp = NULL;
int ret;
if (uss32) {
if (copy_from_user(&ss32, uss32, sizeof ss32))
return -EFAULT;
ss.ss_sp = (void __user *)(unsigned long)ss32.ss_sp;
ss.ss_flags = ss32.ss_flags;
ss.ss_size = ss32.ss_size;
ssp = &ss;
}
if (uoss32)
ossp = &oss;
KERNEL_SYSCALL(ret, do_sigaltstack, (const stack_t __user *)ssp, (stack_t __user *)ossp, sp);
if (!ret && uoss32) {
oss32.ss_sp = (unsigned int)(unsigned long)oss.ss_sp;
oss32.ss_flags = oss.ss_flags;
oss32.ss_size = oss.ss_size;
if (copy_to_user(uoss32, &oss32, sizeof *uoss32))
return -EFAULT;
}
return ret;
}
asmlinkage long sys32_msgrcv(int msqid,
struct msgbuf32 __user *umsgp32,
size_t msgsz, long msgtyp, int msgflg)
{
struct msgbuf *mb;
struct msgbuf32 mb32;
int err, len;
if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
return -ENOMEM;
KERNEL_SYSCALL(err, sys_msgrcv, msqid, (struct msgbuf __user *)mb, msgsz, msgtyp, msgflg);
if (err >= 0) {
len = err;
mb32.mtype = mb->mtype;
err = put_user(mb32.mtype, &umsgp32->mtype);
err |= copy_to_user(&umsgp32->mtext, mb->mtext, len);
if (err)
err = -EFAULT;
else
err = len;
}
kfree(mb);
return err;
}
asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
struct compat_timespec __user *interval)
{
struct timespec t;
int ret;
KERNEL_SYSCALL(ret, sys_sched_rr_get_interval, pid, (struct timespec __user *)&t);
if (put_compat_timespec(&t, interval))
return -EFAULT;
return ret;
}
int sys32_rt_sigpending(compat_sigset_t __user *uset, unsigned int sigsetsize)
{
int ret;
sigset_t set;
KERNEL_SYSCALL(ret, sys_rt_sigpending, (sigset_t __user *)&set, sigsetsize);
if (!ret && put_sigset32(uset, &set, sigsetsize))
return -EFAULT;
return ret;
}
int sys32_rt_sigpending(sigset_t32 *uset, unsigned int sigsetsize)
{
int ret;
sigset_t set;
extern long sys_rt_sigpending(sigset_t *set, size_t sigsetsize);
KERNEL_SYSCALL(ret, sys_rt_sigpending, &set, sigsetsize);
if (!ret && put_sigset32(uset, &set, sigsetsize))
return -EFAULT;
return ret;
}
int sys32_sigprocmask(int how, old_sigset_t32 *set,
old_sigset_t32 *oset)
{
extern int sys_sigprocmask(int how, old_sigset_t *set,
old_sigset_t *oset);
old_sigset_t s;
int ret;
if (set && get_old_segset32 (set, &s))
return -EFAULT;
KERNEL_SYSCALL(ret, sys_sigprocmask, how, set ? &s : NULL, oset ? &s : NULL);
if (!ret && oset && put_old_sigset32(oset, &s))
return -EFAULT;
return ret;
}
long
sys32_sigpending(old_sigset_t32 *set)
{
extern long sys_sigpending(old_sigset_t *set);
old_sigset_t pending;
int ret;
KERNEL_SYSCALL(ret, sys_sigpending, &pending);
/* can't put_user an old_sigset_t -- it is too big */
if (put_old_sigset32(set, &pending))
return -EFAULT;
return ret;
}
int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set, compat_sigset_t __user *oset,
unsigned int sigsetsize)
{
sigset_t old_set, new_set;
int ret;
if (set && get_sigset32(set, &new_set, sigsetsize))
return -EFAULT;
KERNEL_SYSCALL(ret, sys_rt_sigprocmask, how, set ? (sigset_t __user *)&new_set : NULL,
oset ? (sigset_t __user *)&old_set : NULL, sigsetsize);
if (!ret && oset && put_sigset32(oset, &old_set, sigsetsize))
return -EFAULT;
return ret;
}
int sys32_rt_sigprocmask(int how, sigset_t32 *set, sigset_t32 *oset,
unsigned int sigsetsize)
{
extern long sys_rt_sigprocmask(int how,
sigset_t *set, sigset_t *oset,
size_t sigsetsize);
sigset_t old_set, new_set;
int ret;
if (set && get_sigset32(set, &new_set, sigsetsize))
return -EFAULT;
KERNEL_SYSCALL(ret, sys_rt_sigprocmask, how, set ? &new_set : NULL,
oset ? &old_set : NULL, sigsetsize);
if (!ret && oset && put_sigset32(oset, &old_set, sigsetsize))
return -EFAULT;
return ret;
}
asmlinkage long sys32_msgsnd(int msqid,
struct msgbuf32 __user *umsgp32,
size_t msgsz, int msgflg)
{
struct msgbuf *mb;
struct msgbuf32 mb32;
int err;
if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
return -ENOMEM;
err = get_user(mb32.mtype, &umsgp32->mtype);
mb->mtype = mb32.mtype;
err |= copy_from_user(mb->mtext, &umsgp32->mtext, msgsz);
if (err)
err = -EFAULT;
else
KERNEL_SYSCALL(err, sys_msgsnd, msqid, (struct msgbuf __user *)mb, msgsz, msgflg);
kfree(mb);
return err;
}
