Function libseccomp::notify_id_valid

source · [−]
pub fn notify_id_valid(fd: ScmpFd, id: u64) -> Result<(), SeccompError>
Expand description

Checks if a userspace notification is still valid.

A return value of Ok means the notification is still valid. Otherwise the notification is not valid. This can be used to mitigate time-of-check-time-of-use (TOCTOU) attacks as described in seccomp_notify_id_valid(2).

This function corresponds to seccomp_notify_id_valid.

Arguments

  • fd - A file descriptor for the userspace notification
  • id - Notification ID

Errors

If the notification ID is invalid, an error will be returned.