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systemd/units/systemd-bus-proxyd.service.m4.in

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bus-proxyd: support --user bus address
2014-01-07 03:30:34 +04:00
# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
[Unit]
Description=Legacy D-Bus Protocol Compatibility Daemon
[Service]
bus-proxy: turn into multi-threaded daemon Instead of using Accept=true and running one proxy for each connection, we now run one proxy-daemon with a thread per connection. This will enable us to share resources like policies in the future.
2015-01-17 15:57:46 +03:00
ExecStart=@rootlibexecdir@/systemd-bus-proxyd --address=kernel:path=/sys/fs/kdbus/0-system/bus
bus-proxy: add ExecReload= Make sure we support ExecReload= for bus-proxyd to reload configuration during runtime. This is *really* handy when hacking on kdbus. Package-managers are still recommended to run `busctl --address=unix:path=` directly.
2015-08-04 14:19:50 +03:00
ExecReload=@bindir@/busctl --address=unix:path=/run/dbus/system_bus_socket call org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus ReloadConfig
bus-proxyd: support --user bus address
2014-01-07 03:30:34 +04:00
NotifyAccess=main
bus-proxy: turn into multi-threaded daemon Instead of using Accept=true and running one proxy for each connection, we now run one proxy-daemon with a thread per connection. This will enable us to share resources like policies in the future.
2015-01-17 15:57:46 +03:00
CapabilityBoundingSet=CAP_IPC_OWNER CAP_SETUID CAP_SETGID CAP_SETPCAP m4_ifdef(`HAVE_SMACK', CAP_MAC_ADMIN )
PrivateTmp=yes
PrivateDevices=yes
PrivateNetwork=yes
ProtectSystem=full
ProtectHome=yes
bus-proxy: increase NOFILE limit The bus-proxy manages the kdbus connections of all users on the system (regarding the system bus), hence, it needs an elevated NOFILE. Otherwise, a single user can trigger ENFILE by opening NOFILE connections to the bus-proxy. Note that the bus-proxy still does per-user accounting, indirectly via the proxy/fake API of kdbus. Hence, the effective per-user limit is not raised by this. However, we now prevent one user from consuming the whole FD limit of the shared proxy. Also note that there is no *perfect* way to set this. The proxy is a shared object, so it needs a larger NOFILE limit than the highest limit of all users. This limit can be changed dynamically, though. Hence, we cannot protect against it. However, a raised NOFILE limit is a privilege, so we just treat it as such and basically allow these privileged users to be able to consume more resources than normal users (and, maybe, cause some limits to be exceeded by this). Right now, kdbus hard-codes 1024 max connections per user on each bus. However, we *must not* rely on this. This limits could be easily dropped entirely, as the NOFILE limit is a suitable limit on its on.
2015-09-04 12:13:32 +03:00
# The proxy manages connections of all users, so it needs an elevated file
# limit. It does proper per-user accounting (indirectly via kdbus), therefore,
# the effective per-user limits stay the same.
LimitNOFILE=16384
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