Pidfd: Difference between revisions
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As of 6.5, credentials can be sent using pidfds rather than <tt>SCM_CREDENTIALS</tt>-style PIDs using the <tt>SCM_PIDFD</tt> type. <tt>getsockopt(2)</tt> can use <tt>SO_PEERPIDFD</tt> to get a pidfd for the peer process on a <tt>unix(7)</tt> socket. | As of 6.5, credentials can be sent using pidfds rather than <tt>SCM_CREDENTIALS</tt>-style PIDs using the <tt>SCM_PIDFD</tt> type. <tt>getsockopt(2)</tt> can use <tt>SO_PEERPIDFD</tt> to get a pidfd for the peer process on a <tt>unix(7)</tt> socket. | ||
6.9 introduces pidfdfs, a pseudo filesystem similar to nsfs | 6.9 introduces pidfdfs, a pseudo filesystem similar to nsfs. This is not visible from userspace, and is not mounted. It facilitates system calls which demand a filesystem backing: <tt>statx()</tt> now works, as do LSMs (Linux Security Modules). | ||
==[[Glibc]]== | ==[[Glibc]]== | ||