[refpolicy] [PATCH 1/1] refpolicy: Infiniband pkeys and endports

Dan Jurgens danielj at mellanox.com
Wed May 17 15:45:01 UTC 2017


From: Daniel Jurgens <danielj at mellanox.com>

Every Infiniband network will have a default pkey, so that is labeled.
The rest of the pkey configuration is network specific. The policy allows
access to the default and unlabeled pkeys for sysadm and staff users.
kernel_t is allowed access to all pkeys, which it needs to process and
route management datagrams.

Endports are all unlabeled by default, sysadm users are allowed to
manage the subnet on unlabeled endports. kernel_t is allowed to manage
the subnet on all ibendports, which is required for configuring the HCA.

This patch requires selinux series: "SELinux user space support for
Infiniband RDMA", due to the new ipkeycon labeling mechanism.

Signed-off-by: Daniel Jurgens <danielj at mellanox.com>
---
 Makefile                                |   2 +-
 Rules.modular                           |   2 +
 Rules.monolithic                        |   2 +
 policy/flask/access_vectors             |  10 ++
 policy/flask/security_classes           |   4 +
 policy/modules/kernel/corenetwork.if.in | 156 ++++++++++++++++++++++++++++++++
 policy/modules/kernel/corenetwork.if.m4 |  64 +++++++++++++
 policy/modules/kernel/corenetwork.te.in |  17 ++++
 policy/modules/kernel/corenetwork.te.m4 |  26 ++++++
 policy/modules/kernel/kernel.te         |   5 +
 policy/modules/roles/staff.te           |   5 +
 policy/modules/roles/sysadm.te          |   6 ++
 support/comment_move_decl.sed           |   2 +-
 13 files changed, 299 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index d19985eb..b4b2d43a 100644
--- a/Makefile
+++ b/Makefile
@@ -370,7 +370,7 @@ $(moddir)/kernel/corenetwork.if: $(moddir)/kernel/corenetwork.te.in $(moddir)/ke
 	@echo "# $(notdir $@).in or $(notdir $@).m4 file should be modified." >> $@
 	@echo "#" >> $@
 	$(verbose) cat $@.in >> $@
-	$(verbose) $(GREP) "^[[:blank:]]*network_(interface|node|port|packet)(_controlled)?\(.*\)" $< \
+	$(verbose) $(GREP) "^[[:blank:]]*(network_(interface|node|port|packet)(_controlled)?)|ib_(pkey|endport)\(.*\)" $< \
 		| $(M4) -D self_contained_policy $(M4PARAM) $(m4divert) $@.m4 $(m4undivert) - \
 		| $(SED) -e 's/dollarsone/\$$1/g' -e 's/dollarszero/\$$0/g' >> $@
 
diff --git a/Rules.modular b/Rules.modular
index 49d3cca9..331a979d 100644
--- a/Rules.modular
+++ b/Rules.modular
@@ -170,6 +170,8 @@ $(tmpdir)/all_post.conf: $(tmpdir)/all_te_files.conf $(tmpdir)/post_te_files.con
 	$(verbose) $(GREP) ^portcon $(tmpdir)/all_te_files.conf >> $@ || true
 	$(verbose) $(GREP) ^netifcon $(tmpdir)/all_te_files.conf >> $@ || true
 	$(verbose) $(GREP) ^nodecon $(tmpdir)/all_te_files.conf >> $@ || true
+	$(verbose) $(GREP) ^ibpkeycon $(tmpdir)/all_te_files.conf >> $@ || true
+	$(verbose) $(GREP) ^ibendportcon $(tmpdir)/all_te_files.conf >> $@ || true
 
 $(tmpdir)/only_te_rules.conf: $(tmpdir)/all_te_files.conf
 	$(verbose) $(comment_move_decl) $^ > $@
diff --git a/Rules.monolithic b/Rules.monolithic
index ce112d78..80e00821 100644
--- a/Rules.monolithic
+++ b/Rules.monolithic
@@ -150,6 +150,8 @@ $(tmpdir)/all_post.conf: $(tmpdir)/all_te_files.conf $(tmpdir)/post_te_files.con
 	$(verbose) $(GREP) ^portcon $(tmpdir)/all_te_files.conf >> $@ || true
 	$(verbose) $(GREP) ^netifcon $(tmpdir)/all_te_files.conf >> $@ || true
 	$(verbose) $(GREP) ^nodecon $(tmpdir)/all_te_files.conf >> $@ || true
+	$(verbose) $(GREP) ^ibpkeycon $(tmpdir)/all_te_files.conf >> $@ || true
+	$(verbose) $(GREP) ^ibendportcon $(tmpdir)/all_te_files.conf >> $@ || true
 
 $(tmpdir)/only_te_rules.conf: $(tmpdir)/all_te_files.conf
 	$(verbose) $(comment_move_decl) $^ > $@
diff --git a/policy/flask/access_vectors b/policy/flask/access_vectors
index 69f69af8..520a3c28 100644
--- a/policy/flask/access_vectors
+++ b/policy/flask/access_vectors
@@ -926,6 +926,16 @@ inherits database
 	set_value
 }
 
+class infiniband_pkey
+{
+	access
+}
+
+class infiniband_endport
+{
+	manage_subnet
+}
+
 class db_language
 inherits database
 {
diff --git a/policy/flask/security_classes b/policy/flask/security_classes
index 18f18fd8..393621bf 100644
--- a/policy/flask/security_classes
+++ b/policy/flask/security_classes
@@ -139,6 +139,10 @@ class netlink_crypto_socket
 class x_pointer			# userspace
 class x_keyboard		# userspace
 
+# Infiniband
+class infiniband_pkey
+class infiniband_endport
+
 # More Database stuff
 class db_schema			# userspace
 class db_view			# userspace
diff --git a/policy/modules/kernel/corenetwork.if.in b/policy/modules/kernel/corenetwork.if.in
index 2101ea1b..62d90c6c 100644
--- a/policy/modules/kernel/corenetwork.if.in
+++ b/policy/modules/kernel/corenetwork.if.in
@@ -3134,3 +3134,159 @@ interface(`corenet_unconfined',`
 
 	typeattribute $1 corenet_unconfined_type;
 ')
+
+########################################
+## <summary>
+##	Define type to be an infiniband pkey type
+## </summary>
+## <desc>
+##	<p>
+##	Define type to be an infiniband pkey type
+##	</p>
+##	<p>
+##	This is for supporting third party modules and its
+##	use is not allowed in upstream reference policy.
+##	</p>
+## </desc>
+## <param name="domain">
+##	<summary>
+##	Type to be used for network ports.
+##	</summary>
+## </param>
+#
+interface(`corenet_ibpkey',`
+	gen_require(`
+		attribute ibpkey_type;
+	')
+
+	typeattribute $1 ibpkey_type;
+')
+
+########################################
+## <summary>
+##	Access unlabeled infiniband pkeys.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`corenet_ibpkey_access_unlabeled_pkeys',`
+	gen_require(`
+		type unlabeled_t;
+	')
+
+	allow $1 unlabeled_t:infiniband_pkey { access };
+')
+
+########################################
+## <summary>
+##	Access all labeled infiniband pkeys.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`corenet_ibpkey_access_all_labeled_pkeys',`
+	gen_require(`
+		attribute ibpkey_type;
+	')
+
+	allow $1 ibpkey_type:infiniband_pkey { access };
+')
+
+########################################
+## <summary>
+##	Access all infiniband pkeys.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`corenet_ibpkey_access_all_pkeys',`
+	corenet_ibpkey_access_all_labeled_pkeys($1)
+	corenet_ibpkey_access_unlabeled_pkeys($1)
+')
+
+########################################
+## <summary>
+##	Define type to be an infiniband endport
+## </summary>
+## <desc>
+##	<p>
+##	Define type to be an infiniband endport
+##	</p>
+##	<p>
+##	This is for supporting third party modules and its
+##	use is not allowed in upstream reference policy.
+##	</p>
+## </desc>
+## <param name="domain">
+##	<summary>
+##	Type to be used for infiniband endports.
+##	</summary>
+## </param>
+#
+interface(`corenet_ibendport',`
+	gen_require(`
+		attribute ibendport_type;
+	')
+
+	typeattribute $1 ibendport_type;
+')
+
+########################################
+## <summary>
+##	Manage subnets on all labeled Infiniband endports
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`corenet_ibendport_manage_subnet_all_labeled_endports',`
+	gen_require(`
+		attribute ibendport_type;
+	')
+
+	allow $1 ibendport_type:infiniband_endport { manage_subnet };
+')
+
+########################################
+## <summary>
+##	Manage subnet on all unlabeled Infiniband endports
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`corenet_ibendport_manage_subnet_unlabeled_endports',`
+	gen_require(`
+		type unlabeled_t;
+	')
+
+	allow $1 unlabeled_t:infiniband_endport { manage_subnet };
+')
+
+########################################
+## <summary>
+##	Manage subnet on all infiniband endports.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`corenet_ibendport_manage_subnet_all_endports',`
+	corenet_ibendport_manage_subnet_unlabeled_endports($1)
+	corenet_ibendport_manage_subnet_all_labeled_endports($1)
+')
diff --git a/policy/modules/kernel/corenetwork.if.m4 b/policy/modules/kernel/corenetwork.if.m4
index 468fb344..12050937 100644
--- a/policy/modules/kernel/corenetwork.if.m4
+++ b/policy/modules/kernel/corenetwork.if.m4
@@ -776,6 +776,48 @@ interface(`corenet_relabelto_$1_packets',`
 ')
 '') dnl end create_port_interfaces
 
+define(`create_ibpkey_interfaces',``
+########################################
+## <summary>
+##	Access the infiniband fabric on the $1 ibpkey.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+## <infoflow type="both" weight="10"/>
+#
+interface(`corenet_ibpkey_access_$1_pkey',`
+	gen_require(`
+		$3 $1_$2;
+	')
+
+	allow dollarsone $1_$2:infiniband_pkey { access };
+')
+'') dnl end create_ibpkey_interfaces
+
+define(`create_ibendport_interfaces',``
+########################################
+## <summary>
+##	Manage the subnet on $1 ibendport.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+## <infoflow type="both" weight="10"/>
+#
+interface(`corenet_ibendport_manage_subnet_$1_endport',`
+	gen_require(`
+		$3 $1_$2;
+	')
+
+	allow dollarsone $1_$2:infiniband_endport { manage_subnet };
+')
+'') dnl end create_ibendport_interfaces
+
 #
 # create_netif_*_interfaces(linux_interfacename)
 #
@@ -851,3 +893,25 @@ define(`network_packet',`
 create_packet_interfaces($1_client)
 create_packet_interfaces($1_server)
 ')
+
+# create_ibpkey_*_interfaces(name, subnet_prefix, pkeynum,mls_sensitivity)
+# (these wrap create_port_interfaces to handle attributes and types)
+define(`create_ibpkey_type_interfaces',`create_ibpkey_interfaces($1,ibpkey_t,type,determine_reserved_capability(shift($*)))')
+
+#
+# ib_pkey(name,subnet_prefix pkeynum mls_sensitivity)
+#
+define(`ib_pkey',`
+create_ibpkey_type_interfaces($*)
+')
+
+# create_ibendport_*_interfaces(name, devname, portnum,mls_sensitivity)
+# (these wrap create_port_interfaces to handle attributes and types)
+define(`create_ibendport_type_interfaces',`create_ibendport_interfaces($1,ibendport_t,type,determine_reserved_capability(shift($*)))')
+
+#
+# ib_endport(name,device_name, portnum mls_sensitivity)
+#
+define(`ib_endport',`
+create_ibendport_type_interfaces($*)
+')
diff --git a/policy/modules/kernel/corenetwork.te.in b/policy/modules/kernel/corenetwork.te.in
index 1ca96d38..bc8ee090 100644
--- a/policy/modules/kernel/corenetwork.te.in
+++ b/policy/modules/kernel/corenetwork.te.in
@@ -16,6 +16,8 @@ attribute port_type;
 attribute reserved_port_type;
 attribute rpc_port_type;
 attribute server_packet_type;
+attribute ibpkey_type;
+attribute ibendport_type;
 # This is an optimization for { port_type -reserved_port_type }
 attribute unreserved_port_type;
 
@@ -346,6 +348,15 @@ typealias netif_t alias { lo_netif_t netif_lo_t };
 
 ########################################
 #
+# Infiniband Pkeys
+#
+#
+# unlabeled_t is the default type of infiniband pkeys.
+#
+ib_pkey(default, fe80::,0xFFFF,s1)
+
+########################################
+#
 # Unconfined access to this module
 #
 
@@ -358,3 +369,9 @@ allow corenet_unconfined_type port_type:udp_socket { send_msg recv_msg };
 # Bind to any network address.
 allow corenet_unconfined_type port_type:{ tcp_socket udp_socket rawip_socket } name_bind;
 allow corenet_unconfined_type node_type:{ tcp_socket udp_socket rawip_socket } node_bind;
+
+# Infiniband
+optional_policy(`
+	corenet_ibpkey_access_all_pkeys(corenet_unconfined_type)
+	corenet_ibendport_manage_subnet_all_endports(corenet_unconfined_type)
+')
diff --git a/policy/modules/kernel/corenetwork.te.m4 b/policy/modules/kernel/corenetwork.te.m4
index 3f6e1688..380e64f3 100644
--- a/policy/modules/kernel/corenetwork.te.m4
+++ b/policy/modules/kernel/corenetwork.te.m4
@@ -111,3 +111,29 @@ define(`network_packet',`
 type $1_client_packet_t, packet_type, client_packet_type;
 type $1_server_packet_t, packet_type, server_packet_type;
 ')
+
+define(`declare_ibpkeycons',`dnl
+ibpkeycon $2 $3 gen_context(system_u:object_r:$1,$4)
+ifelse(`$5',`',`',`declare_ibpkeycons($1,shiftn(4,$*))')dnl
+')
+
+#
+# ib_pkey(nam, subnet_prefix, pkey_num, mls_sensitivity [,subnet_prefix, pkey_num, mls_sensitivity[,...]])
+#
+define(`ib_pkey',`
+type $1_ibpkey_t, ibpkey_type;
+ifelse(`$2',`',`',`declare_ibpkeycons($1_ibpkey_t,shift($*))')dnl
+')
+
+define(`declare_ibendportcons',`dnl
+ibendportcon $2 $3 gen_context(system_u:object_r:$1,$4)
+ifelse(`$5',`',`',`declare_ibendportcons($1,shiftn(4,$*))')dnl
+')
+
+#
+# ib_endport (name, dev_name, port_num, mls_sensitivity [, dev_name, port_num mls_sensitivity[,...]])
+#
+define(`ib_endport',`
+type $1_ibendport_t, ibendport_type;
+ifelse(`$2',`',`',`declare_ibendportcons($1_ibendport_t,shift($*))')dnl
+')
diff --git a/policy/modules/kernel/kernel.te b/policy/modules/kernel/kernel.te
index 89923242..e107feca 100644
--- a/policy/modules/kernel/kernel.te
+++ b/policy/modules/kernel/kernel.te
@@ -449,6 +449,11 @@ optional_policy(`
 	unconfined_domain_noaudit(kernel_t)
 ')
 
+optional_policy(`
+	corenet_ibpkey_access_all_pkeys(kernel_t)
+	corenet_ibendport_manage_subnet_all_endports(kernel_t)
+')
+
 ########################################
 #
 # Unlabeled process local policy
diff --git a/policy/modules/roles/staff.te b/policy/modules/roles/staff.te
index 27c2fffa..91a1a555 100644
--- a/policy/modules/roles/staff.te
+++ b/policy/modules/roles/staff.te
@@ -15,6 +15,11 @@ userdom_unpriv_user_template(staff)
 #
 
 optional_policy(`
+	corenet_ibpkey_access_default_pkey(staff_t)
+	corenet_ibpkey_access_unlabeled_pkeys(staff_t)
+')
+
+optional_policy(`
 	apache_role(staff_r, staff_t)
 ')
 
diff --git a/policy/modules/roles/sysadm.te b/policy/modules/roles/sysadm.te
index 54df4354..dbc5d08f 100644
--- a/policy/modules/roles/sysadm.te
+++ b/policy/modules/roles/sysadm.te
@@ -277,6 +277,12 @@ optional_policy(`
 ')
 
 optional_policy(`
+	corenet_ibpkey_access_default_pkey(sysadm_t)
+	corenet_ibpkey_access_unlabeled_pkeys(sysadm_t)
+	corenet_ibendport_manage_subnet_unlabeled_endports(sysadm_t)
+')
+
+optional_policy(`
 	couchdb_admin(sysadm_t, sysadm_r)
 ')
 
diff --git a/support/comment_move_decl.sed b/support/comment_move_decl.sed
index 00b94b6a..90813480 100644
--- a/support/comment_move_decl.sed
+++ b/support/comment_move_decl.sed
@@ -6,7 +6,7 @@
 /optional \{/,/} # end optional/b nextline
 
 /^[[:blank:]]*(attribute(_role)?|type(alias)?) /s/^/# this line was moved by the build process: &/
-/^[[:blank:]]*(port|node|netif|genfs)con /s/^/# this line was moved by the build process: &/
+/^[[:blank:]]*(port|node|netif|genfs|ibpkey|ibendport)con /s/^/# this line was moved by the build process: &/
 /^[[:blank:]]*fs_use_(xattr|task|trans) /s/^/# this line was moved by the build process: &/
 /^[[:blank:]]*sid /s/^/# this line was moved by the build process: &/
 /^[[:blank:]]*bool /s/^/# this line was moved by the build process: &/
-- 
2.12.2



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