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Subject: [Bug 215202] LOCAL_PEERCRED / xucred does not have process ID
Date: Sat, 10 Dec 2016 22:15:44 +0000
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X-Bugzilla-Product: Base System
X-Bugzilla-Component: kern
X-Bugzilla-Version: CURRENT
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X-Bugzilla-Severity: Affects Some People
X-Bugzilla-Who: greg@unrelenting.technology
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D215202

            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@FreeBSD.org
          Reporter: greg@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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