Update netlink socket classes.

Define new netlink socket security classes introduced by kernel commit
223ae516404a7a65f09e79a1c0291521c233336e.

Note that this does not remove the long-since obsolete
netlink_firewall_socket and netlink_ip6_fw_socket classes
from refpolicy in case they are still needed for legacy
distribution policies.

Add the new socket classes to socket_class_set.
Update ubac and mls constraints for the new socket classes.
Add allow rules for a few specific known cases (netutils, iptables,
netlabel, ifconfig, udev) in core policy that require access.
Further refinement for the contrib tree will be needed.  Any allow
rule previously written on :netlink_socket may need to be rewritten or
duplicated for one of the more specific classes.  For now, we retain the
existing :netlink_socket rules for compatibility on older kernels.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

1 files changed, 24 insertions, 0 deletions

diff --git a/policy/flask/access_vectors b/policy/flask/access_vectors
index 2b20aa0f..056cdd7c 100644
--- a/policy/flask/access_vectors
+++ b/policy/flask/access_vectors
@@ -852,6 +852,30 @@ class binder
 	transfer
 }
 
+class netlink_iscsi_socket
+inherits socket
+
+class netlink_fib_lookup_socket
+inherits socket
+
+class netlink_connector_socket
+inherits socket
+
+class netlink_netfilter_socket
+inherits socket
+
+class netlink_generic_socket
+inherits socket
+
+class netlink_scsitransport_socket
+inherits socket
+
+class netlink_rdma_socket
+inherits socket
+
+class netlink_crypto_socket
+inherits socket
+
 class x_pointer
 inherits x_device