Define extended_socket_class policy capability and socket classes

am: 431bdd9f2f

Change-Id: Ifb8085ca9b3107acc4c1b658c01b321770c82a96

private/access_vectors

@@ -563,6 +563,113 @@ inherits cap
 class cap2_userns
 inherits cap2
 
+
+#
+# Define the access vector interpretation for the new socket classes
+# enabled by the extended_socket_class policy capability.
+#
+
+#
+# The next two classes were previously mapped to rawip_socket and therefore
+# have the same definition as rawip_socket (until further permissions
+# are defined).
+#
+class sctp_socket
+inherits socket
+{
+	node_bind
+}
+
+class icmp_socket
+inherits socket
+{
+	node_bind
+}
+
+#
+# The remaining network socket classes were previously
+# mapped to the socket class and therefore have the
+# same definition as socket.
+#
+
+class ax25_socket
+inherits socket
+
+class ipx_socket
+inherits socket
+
+class netrom_socket
+inherits socket
+
+class atmpvc_socket
+inherits socket
+
+class x25_socket
+inherits socket
+
+class rose_socket
+inherits socket
+
+class decnet_socket
+inherits socket
+
+class atmsvc_socket
+inherits socket
+
+class rds_socket
+inherits socket
+
+class irda_socket
+inherits socket
+
+class pppox_socket
+inherits socket
+
+class llc_socket
+inherits socket
+
+class can_socket
+inherits socket
+
+class tipc_socket
+inherits socket
+
+class bluetooth_socket
+inherits socket
+
+class iucv_socket
+inherits socket
+
+class rxrpc_socket
+inherits socket
+
+class isdn_socket
+inherits socket
+
+class phonet_socket
+inherits socket
+
+class ieee802154_socket
+inherits socket
+
+class caif_socket
+inherits socket
+
+class alg_socket
+inherits socket
+
+class nfc_socket
+inherits socket
+
+class vsock_socket
+inherits socket
+
+class kcm_socket
+inherits socket
+
+class qipcrtr_socket
+inherits socket
+
 class property_service
 {
 	set

private/policy_capabilities

@@ -3,3 +3,11 @@ policycap network_peer_controls;
 
 # Enable open permission check.
 policycap open_perms;
+
+# Enable separate security classes for
+# all network address families previously
+# mapped to the socket class and for
+# ICMP and SCTP sockets previously mapped
+# to the rawip_socket class.
+policycap extended_socket_class;
+

private/security_classes

@@ -98,6 +98,38 @@ class netlink_crypto_socket
 class cap_userns
 class cap2_userns
 
+# New socket classes introduced by extended_socket_class policy capability.
+# These two were previously mapped to rawip_socket.
+class sctp_socket
+class icmp_socket
+# These were previously mapped to socket.
+class ax25_socket
+class ipx_socket
+class netrom_socket
+class atmpvc_socket
+class x25_socket
+class rose_socket
+class decnet_socket
+class atmsvc_socket
+class rds_socket
+class irda_socket
+class pppox_socket
+class llc_socket
+class can_socket
+class tipc_socket
+class bluetooth_socket
+class iucv_socket
+class rxrpc_socket
+class isdn_socket
+class phonet_socket
+class ieee802154_socket
+class caif_socket
+class alg_socket
+class nfc_socket
+class vsock_socket
+class kcm_socket
+class qipcrtr_socket
+
 # Property service
 class property_service          # userspace
 

private/webview_zygote.te

@@ -103,6 +103,11 @@ neverallow webview_zygote domain:{
   netlink_dnrt_socket netlink_kobject_uevent_socket tun_socket netlink_iscsi_socket
   netlink_fib_lookup_socket netlink_connector_socket netlink_netfilter_socket
   netlink_generic_socket netlink_scsitransport_socket netlink_rdma_socket netlink_crypto_socket
+  sctp_socket icmp_socket ax25_socket ipx_socket netrom_socket atmpvc_socket
+  x25_socket rose_socket decnet_socket atmsvc_socket rds_socket irda_socket
+  pppox_socket llc_socket can_socket tipc_socket bluetooth_socket iucv_socket
+  rxrpc_socket isdn_socket phonet_socket ieee802154_socket caif_socket
+  alg_socket nfc_socket vsock_socket kcm_socket qipcrtr_socket
 } *;
 
 # Do not allow access to Bluetooth-related system properties.

public/global_macros

@@ -8,7 +8,7 @@ define(`notdevfile_class_set', `{ file lnk_file sock_file fifo_file }')
 define(`file_class_set', `{ devfile_class_set notdevfile_class_set }')
 define(`dir_file_class_set', `{ dir file_class_set }')
 
-define(`socket_class_set', `{ socket tcp_socket udp_socket rawip_socket netlink_socket packet_socket key_socket unix_stream_socket unix_dgram_socket appletalk_socket netlink_route_socket netlink_firewall_socket netlink_tcpdiag_socket netlink_nflog_socket netlink_xfrm_socket netlink_selinux_socket netlink_audit_socket netlink_ip6fw_socket netlink_dnrt_socket netlink_kobject_uevent_socket tun_socket netlink_iscsi_socket netlink_fib_lookup_socket netlink_connector_socket netlink_netfilter_socket netlink_generic_socket netlink_scsitransport_socket netlink_rdma_socket netlink_crypto_socket }')
+define(`socket_class_set', `{ socket tcp_socket udp_socket rawip_socket netlink_socket packet_socket key_socket unix_stream_socket unix_dgram_socket appletalk_socket netlink_route_socket netlink_firewall_socket netlink_tcpdiag_socket netlink_nflog_socket netlink_xfrm_socket netlink_selinux_socket netlink_audit_socket netlink_ip6fw_socket netlink_dnrt_socket netlink_kobject_uevent_socket tun_socket netlink_iscsi_socket netlink_fib_lookup_socket netlink_connector_socket netlink_netfilter_socket netlink_generic_socket netlink_scsitransport_socket netlink_rdma_socket netlink_crypto_socket sctp_socket icmp_socket ax25_socket ipx_socket netrom_socket atmpvc_socket x25_socket rose_socket decnet_socket atmsvc_socket rds_socket irda_socket pppox_socket llc_socket can_socket tipc_socket bluetooth_socket iucv_socket rxrpc_socket isdn_socket phonet_socket ieee802154_socket caif_socket alg_socket nfc_socket vsock_socket kcm_socket qipcrtr_socket }')
 define(`dgram_socket_class_set', `{ udp_socket unix_dgram_socket }')
 define(`stream_socket_class_set', `{ tcp_socket unix_stream_socket }')
 define(`unpriv_socket_class_set', `{ tcp_socket udp_socket unix_stream_socket unix_dgram_socket }')