Remove sway-security(7)

We will need to overhaul this for 1.0

1 files changed, 0 insertions, 239 deletions

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-sway-security (7)
-=================
-
-Name
-----
-sway-security - Guidelines for securing your sway install
-
-Security Overview
------------------
-
-**Sway is NOT secure**. We are working on it but do not trust that we have it all
-figured out yet. The following man page is provisional.
-
-Securing sway requires careful configuration of your environment, the sort that's
-usually best suited to a distribution maintainer who wants to ship a secure sway
-environment in their distribution. Sway provides a number of means of securing it but
-you must make a few changes external to sway first.
-
-Configuration of security features is limited to files in the security directory
-(this is likely /etc/sway/security.d/*, but depends on your installation prefix).
-Files in this directory must be owned by root:root and chmod 644 or 444. The default
-security configuration is installed to /etc/sway/security.d/00-defaults, and
-should not be modified - it will be updated with the latest recommended security
-defaults between releases. To override the defaults, you should add more files to
-this directory.
-
-Environment security
---------------------
-
-LD_PRELOAD is a mechanism designed to ruin the security of your system. There are
-a number of strategies for dealing with this, but they all suck a little. In order
-of most practical to least practical:
-
-1. Only run important programs via exec. Sway's exec command will ensure that
-        LD_PRELOAD is unset when running programs.
-
-2. Remove LD_PRELOAD support from your dynamic loader (requires patching libc).
-        This may break programs that rely on LD_PRELOAD for legitimate functionality,
-        but this is the most effective solution.
-
-3. Use static linking for important programs. Of course statically linked programs
-        are unaffected by the dynamic linking security dumpster fire.
-
-Note that should you choose method 1, you MUST ensure that sway itself isn't
-compromised by LD_PRELOAD. It probably isn't, but you can be sure by setting
-/usr/bin/sway to a+s (setuid), which will instruct the dynamic linker not to
-permit LD_PRELOAD for it (and will also run it as root, which sway will shortly
-drop). You could also statically link sway itself.
-
-Note that LD_LIBRARY_PATH has all of these problems, and the same solutions.
-
-Read your log
--------------
-
-Sway does sanity checks and prints big red warnings to stderr if they fail. Read
-them.
-
-Feature policies
-----------------
-
-Certain sway features are security sensitive and may be configured with security
-policies. These features are:
-
-**background**::
-        Permission for a program to become the background.
-
-**fullscreen**::
-        Permission to become fullscreen. Note that users can always make a window
-        fullscreen themselves with the fullscreen command.
-
-**ipc**::
-        Permission to connect to sway's IPC socket.
-
-**keyboard**::
-        Permission to receive keyboard events (only while they are focused).
-
-**lock**::
-        Permission for a program to act as a screen locker. This involves becoming
-        fullscreen (on all outputs) and receiving _all_ keyboard and mouse input for
-        the duration of the process.
-
-**mouse**::
-        Permission to receive mouse events (only while the mouse is over them).
-
-**panel**::
-        Permission for a program to stick its windows to the sides of the screen.
-
-**screenshot**::
-        Permission to take screenshots or record the screen.
-
-By default, no permissions are granted (though saner defaults are provided in
-/etc/sway/config.d/security). You can use the following configuration options to control
-a program's access:
-
-**permit** <executable> <features...>::
-        Permits <executable> to use <features> (each feature separated by a space).
-        <executable> may be * to affect the default policy, or the full path to the
-        executable file.
-
-**reject** <executable> <features...>::
-        Disallows <executable> from using <features> (each feature separated by a space).
-        <executable> may be * to affect the default policy, or the full path to the
-        executable file.
-
-Note that policy enforcement requires procfs to be mounted at /proc and the sway
-process to be able to access _/proc/[pid]/exe_ (see **procfs(5)** for details on
-this access - setcap cap_sys_ptrace=eip /usr/bin/sway should do the trick). If
-sway is unable to read _/proc/[pid]/exe_, it will apply the default policy.
-
-To work correctly, sway's own programs require the following permissions:
-
-- swaybg: background
-- swaylock: lock, keyboard
-- swaybar: panel, mouse, ipc
-- swaygrab: screenshot, ipc
-
-When you first declare a policy for an executable, it will inherit the default
-policy. Further changes to the default policy will not retroactively affect which
-permissions an earlier policy inherits. You must explicitly reject any features
-from the default policy that you do not want an executable to receive permission
-for.
-
-Command policies
-----------------
-
-You can also control the context from which a command may execute. The different
-contexts you can control are:
-
-**config**::
-        Can be run from your config file.
-
-**binding**::
-        Can be run from bindsym or bindcode commands.
-
-**ipc**::
-        Can be run by IPC clients.
-
-**criteria**::
-        Can be run when evaluating window criteria.
-
-**all**::
-        Shorthand for granting permission in all contexts.
-
-By default a command is allowed to execute in any context. To configure this, open
-a commands block and fill it with policies:
-
-        commands {
-                <name> <contexts...>
-                ...
-        }
-
-For example, you could do this to limit the use of the focus command to just
-binding and criteria:
-
-        commands {
-                focus binding criteria
-        }
-
-Setting a command policy overwrites any previous policy that was in place.
-
-IPC policies
-------------
-
-Disabling IPC access via swaymsg is encouraged if you intend to secure the IPC
-socket, because any program that can execute swaymsg could circumvent its own
-security policy by simply invoking swaymsg.
-
-You can configure which features of IPC are available for particular clients:
-
-        ipc <executable> {
-                ...
-        }
-
-You may use * for <executable> to configure the default policy for all clients.
-Configuring IPC policies for specific executables is not supported on FreeBSD, and
-the default policy will be applied to all IPC connections.
-
-The following commands are available within this block:
-
-**bar-config** <enabled|disabled>::
-        Controls GET_BAR_CONFIG (required for swaybar to work at all).
-
-**command** <enabled|disabled>::
-        Controls executing sway commands via IPC.
-
-**inputs** <enabled|disabled>::
-        Controls GET_INPUTS (input device information).
-
-**marks** <enabled|disabled>::
-        Controls GET_MARKS.
-
-**outputs** <enabled|disabled>::
-        Controls GET_OUTPUTS.
-
-**tree** <enabled|disabled>::
-        Controls GET_TREE.
-
-**workspaces** <enabled|disabled>::
-        Controls GET_WORKSPACES.
-
-You can also control which IPC events can be raised with an events block:
-
-        ipc <executable> {
-                events {
-                        ...
-                }
-        }
-
-The following commands are valid within an IPC events block:
-
-**binding** <enabled|disabled>::
-        Controls keybinding notifications (disabled by default).
-
-**input** <enabled|disabled>::
-        Controls input device hotplugging notifications.
-
-**mode** <enabled|disabled>::
-        Controls output hotplugging notifications.
-
-**output** <enabled|disabled>::
-        Controls output hotplugging notifications.
-
-**window** <enabled|disabled>::
-        Controls window event notifications.
-
-**workspace** <enabled|disabled>::
-        Controls workspace notifications.
-
-In each of these blocks, you may use * (as in "* enabled" or "* disabled") to
-control access to every feature at once.
-
-Authors
--------
-Maintained by Drew DeVault <sir@cmpwn.com>, who is assisted by other open
-source contributors. For more information about sway development, see
-<https://github.com/swaywm/sway>.