Improve the locallogin module by curbing on dac_override permissions
in the sulogin domain (read/search permissions only).
Thanks to Dominick Grift for suggesting this.
Other modules are likely affected by the same issue.
Signed-off-by: Guido Trentalancia <guido@trentalancia.net>
This patch is slightly more involved than just running sed. It also adds
typealias rules and doesn't change the FC entries.
The /dev/apm_bios device doesn't exist on modern systems. I have left that
policy in for the moment on the principle of making one change per patch. But
I might send another patch to remove that as it won't exist with modern
kernels.
I have used optional sections for dbus and xserver as requested and also
fixed a minor issue of a rule not being in the correct section.
Please merge this.
This patch fixes the policy for sulogin. It is very important
because without this patch, sulogin cannot work properly and
it should be considered that it is used as an emergency shell
when there are serious consistency errors in the system, so it
constitutes the only way to recover the system in such
circumstances.
Nowadays, sulogin never uses PAM (at least not the official one
from util-linux), so obsolete, confusing and buggy policy has
been removed.
Extensive testing carried out while creating this patch indicates
that there aren't other permissions needed to successfully run
sulogin.
This second version should apply cleanly to the latest git tree.
Signed-off-by: Guido Trentalancia <guido@trentalancia.net>
Use nscd_use instead of nscd_socket_use. This conditionally allows
nscd_shm_use
Remove the nscd_socket_use from ssh_keygen since it was redundant
already allowed by auth_use_nsswitch
Had to make some ssh_keysign_t rules unconditional else
nscd_use(ssh_keysign_t) would not build (nested booleans) but that does
not matter, the only actual domain transition to ssh_keysign_t is
conditional so the other unconditional ssh_keygen_t rules are
conditional in practice
Signed-off-by: Dominick Grift <dominick.grift@gmail.com>
Add the support to login and use the system from /dev/console.
1. Make gettty_t able to use the /dev/console;
2. Make local_login_t able to relabel /dev/console to user tty types;
3. Provide the type_change rule for relabeling /dev/console.
All above supports are controlled by the allow_console tunable.
Signed-off-by: Harry Ciao <qingtao.cao@windriver.com>
Chris PeBenito
Guido Trentalancia
cgzones
Chris PeBenito
Dominick Grift
Chris PeBenito
Harry Ciao