On Fri, 2018-01-19 at 11:19 +0100, Dominick Grift wrote: > The default_type functionality is too limited because it assumes that > all login programs associate the same type with a given role > > This is not the case > > For example: > > default_type for local_login: joe.role:joe.type > default_type for sshd: joe.role:joe_ssh_server.type > default_type for cockpit joe.role:joe_cockpit_bridge.type > > etc > > So pam_selinux "select_context" can only support a single login > program due to this > > I do not understand why default_type is needed in the first place. > The contexts/users/ file is more specific: > > /etc/selinux/TYPE/contexts/users/joe.user: > sys.role:login.type:s0 joe.role:joe.type:s0 joe1.role:joe1.type:s0 > sys.role:sshd.type:s0 joe.role:joe_ssh_server.type:s0 > joe1.role:joe1_ssh_server.type:s0 > sys.role:cockpit_session.subj:s0 joe.role:joe_cockpit_bridge.type:s0 > joe1:joe1_cockpit_bridge.type:s0 > > ie. its already specified that for example joe1.type is default type > for joe1.role for local_login and that joe1_ssh_server.type is > default type for joe1.role for sshd > > So unless i am overlooking something, the default_type file is > redundant and it actually adds an extra file to configure
IIRC, it was first introduced and used by newrole to obtain a default type for the role so the user wouldn't have to always specify -t, and predates the introduction of the default_contexts and users/* configurations. Yes, it could likely be replaced with something more flexible. I'd like for all of that logic and configuration to get overhauled and /sys/fs/selinux/user to die.
