[systemd-devel] [PATCH] multiseat issues

[Oleg Samarin]

The next attempt to post the patch (the patch is attached, because
evolution breaks the lines)

i1. Capability of making seats without framebuffer devices 
    logind.c: The seat is now activated by any device with udev tag
"seat-master"
    71-seat.rules.in: All framebuffer devices have this tag
    
i2. Supporting of acls on devices shared between all seats
(like /dev/snd/seq)
    These devices have "shared" udev tag in addition to "uaccess"
    
    A user gets permitions on it when he activates a session on any
seat.
    He/she losses the permitions when no his/her active sessions more
exist
    
    71-seat.rules.in: sets "ONE_SEAT" env var to "Y" for all devices
with "seat" tag
    73-seat-late.rules.in: inherits "ONE_SEAT" env from the parent
device.
    sets "shared" tag to all devices with "uaccess" tag with neither
"ONE_SEAT" nor "ID_SEAT" env
    logind-acl.c: changes acl on shared devices regardless to their
seats
    logind-seat.c: when a user removes an active sessions, checks are
other active sessions of this user (on other seats) exists 
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