[Bug 215202] LOCAL_PEERCRED / xucred does not have process ID

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sat Dec 10 22:15:44 UTC 2016


            Bug ID: 215202
           Summary: LOCAL_PEERCRED / xucred does not have process ID
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: greg at unrelenting.technology

Applications like the 'sway' Wayland compositor rely on getting the socket
peer's pid for IPC security. It would be nice to get FreeBSD to report the pid,
not just uid and gids, through the LOCAL_PEERCRED option.

>From the commit that fixed bug #102956 (SO_PEERCRED in Linux emulation):
"Temporarily use 0 for pid member as the FreeBSD does not cache remote UNIX
domain socket peer pid"

So adding pid to LOCAL_PEERCRED would allow a simple improvement to Linux
compatibility as well.

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