#include <linux/list.h>
#include <linux/anon_inodes.h>
#include <linux/signalfd.h>
+#include <linux/syscalls.h>
struct signalfd_ctx {
sigset_t sigmask;
BUILD_BUG_ON(sizeof(struct signalfd_siginfo) != 128);
/*
- * Unused memebers should be zero ...
+ * Unused members should be zero ...
*/
err = __clear_user(uinfo, sizeof(*uinfo));
* If you change siginfo_t structure, please be sure
* this code is fixed accordingly.
*/
- err |= __put_user(kinfo->si_signo, &uinfo->signo);
- err |= __put_user(kinfo->si_errno, &uinfo->err);
- err |= __put_user((short)kinfo->si_code, &uinfo->code);
+ err |= __put_user(kinfo->si_signo, &uinfo->ssi_signo);
+ err |= __put_user(kinfo->si_errno, &uinfo->ssi_errno);
+ err |= __put_user((short) kinfo->si_code, &uinfo->ssi_code);
switch (kinfo->si_code & __SI_MASK) {
case __SI_KILL:
- err |= __put_user(kinfo->si_pid, &uinfo->pid);
- err |= __put_user(kinfo->si_uid, &uinfo->uid);
+ err |= __put_user(kinfo->si_pid, &uinfo->ssi_pid);
+ err |= __put_user(kinfo->si_uid, &uinfo->ssi_uid);
break;
case __SI_TIMER:
- err |= __put_user(kinfo->si_tid, &uinfo->tid);
- err |= __put_user(kinfo->si_overrun, &uinfo->overrun);
- err |= __put_user((long)kinfo->si_ptr, &uinfo->svptr);
+ err |= __put_user(kinfo->si_tid, &uinfo->ssi_tid);
+ err |= __put_user(kinfo->si_overrun, &uinfo->ssi_overrun);
+ err |= __put_user((long) kinfo->si_ptr, &uinfo->ssi_ptr);
break;
case __SI_POLL:
- err |= __put_user(kinfo->si_band, &uinfo->band);
- err |= __put_user(kinfo->si_fd, &uinfo->fd);
+ err |= __put_user(kinfo->si_band, &uinfo->ssi_band);
+ err |= __put_user(kinfo->si_fd, &uinfo->ssi_fd);
break;
case __SI_FAULT:
- err |= __put_user((long)kinfo->si_addr, &uinfo->addr);
+ err |= __put_user((long) kinfo->si_addr, &uinfo->ssi_addr);
#ifdef __ARCH_SI_TRAPNO
- err |= __put_user(kinfo->si_trapno, &uinfo->trapno);
+ err |= __put_user(kinfo->si_trapno, &uinfo->ssi_trapno);
#endif
break;
case __SI_CHLD:
- err |= __put_user(kinfo->si_pid, &uinfo->pid);
- err |= __put_user(kinfo->si_uid, &uinfo->uid);
- err |= __put_user(kinfo->si_status, &uinfo->status);
- err |= __put_user(kinfo->si_utime, &uinfo->utime);
- err |= __put_user(kinfo->si_stime, &uinfo->stime);
+ err |= __put_user(kinfo->si_pid, &uinfo->ssi_pid);
+ err |= __put_user(kinfo->si_uid, &uinfo->ssi_uid);
+ err |= __put_user(kinfo->si_status, &uinfo->ssi_status);
+ err |= __put_user(kinfo->si_utime, &uinfo->ssi_utime);
+ err |= __put_user(kinfo->si_stime, &uinfo->ssi_stime);
break;
case __SI_RT: /* This is not generated by the kernel as of now. */
case __SI_MESGQ: /* But this is */
- err |= __put_user(kinfo->si_pid, &uinfo->pid);
- err |= __put_user(kinfo->si_uid, &uinfo->uid);
- err |= __put_user((long)kinfo->si_ptr, &uinfo->svptr);
+ err |= __put_user(kinfo->si_pid, &uinfo->ssi_pid);
+ err |= __put_user(kinfo->si_uid, &uinfo->ssi_uid);
+ err |= __put_user((long) kinfo->si_ptr, &uinfo->ssi_ptr);
break;
- default: /* this is just in case for now ... */
- err |= __put_user(kinfo->si_pid, &uinfo->pid);
- err |= __put_user(kinfo->si_uid, &uinfo->uid);
+ default:
+ /*
+ * This case catches also the signals queued by sigqueue().
+ */
+ err |= __put_user(kinfo->si_pid, &uinfo->ssi_pid);
+ err |= __put_user(kinfo->si_uid, &uinfo->ssi_uid);
+ err |= __put_user((long) kinfo->si_ptr, &uinfo->ssi_ptr);
+ err |= __put_user(kinfo->si_int, &uinfo->ssi_int);
break;
}
asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask)
{
- int error;
sigset_t sigmask;
struct signalfd_ctx *ctx;
- struct file *file;
- struct inode *inode;
if (sizemask != sizeof(sigset_t) ||
copy_from_user(&sigmask, user_mask, sizeof(sigmask)))
* When we call this, the initialization must be complete, since
* anon_inode_getfd() will install the fd.
*/
- error = anon_inode_getfd(&ufd, &inode, &file, "[signalfd]",
- &signalfd_fops, ctx);
- if (error)
- goto err_fdalloc;
+ ufd = anon_inode_getfd("[signalfd]", &signalfd_fops, ctx);
+ if (ufd < 0)
+ kfree(ctx);
} else {
- file = fget(ufd);
+ struct file *file = fget(ufd);
if (!file)
return -EBADF;
ctx = file->private_data;
}
return ufd;
-
-err_fdalloc:
- kfree(ctx);
- return error;
}
-