[refpolicy] [ cgroups revisited 2/4] Now implement libcgroup policy.

[refpolicy] [ cgroups revisited 2/4] Now implement libcgroup policy.

[Dominick Grift]

This is a set of scripts that automate cgroup management.

Signed-off-by: Dominick Grift <domg472@gmail.com>
---
:100644 100644 5a34915... 3b65a38... M	policy/modules/kernel/filesystem.if
:000000 100644 0000000... dd006ff... A	policy/modules/services/cgroup.fc
:000000 100644 0000000... abcab97... A	policy/modules/services/cgroup.if
:000000 100644 0000000... 67facee... A	policy/modules/services/cgroup.te
 policy/modules/kernel/filesystem.if |   19 +++++
 policy/modules/services/cgroup.fc   |   11 +++
 policy/modules/services/cgroup.if   |  126 +++++++++++++++++++++++++++++++++++
 policy/modules/services/cgroup.te   |  111 ++++++++++++++++++++++++++++++
 4 files changed, 267 insertions(+), 0 deletions(-)

diff --git a/policy/modules/kernel/filesystem.if b/policy/modules/kernel/filesystem.if
index 5a34915..3b65a38 100644
--- a/policy/modules/kernel/filesystem.if
+++ b/policy/modules/kernel/filesystem.if
@@ -633,6 +633,25 @@ interface(`fs_getattr_cgroupfs', `
 
 ########################################
 ## <summary>
+##	Delete dirs on cgroup
+##	file systems.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`fs_delete_cgroupfs_dirs', `
+	gen_require(`
+		type cgroupfs_t;
+	')
+
+	delete_dirs_pattern($1, cgroupfs_t, cgroupfs_t)
+')
+
+########################################
+## <summary>
 ##	list dirs on cgroup
 ##	file systems.
 ## </summary>
diff --git a/policy/modules/services/cgroup.fc b/policy/modules/services/cgroup.fc
new file mode 100644
index 0000000..dd006ff
--- /dev/null
+++ b/policy/modules/services/cgroup.fc
@@ -0,0 +1,11 @@
+/cgroup(/.*)?					gen_context(system_u:object_r:cgroup_t,s0)
+
+/etc/rc\.d/init\.d/cgconfig	--	gen_context(system_u:object_r:cgconfig_initrc_exec_t,s0)
+/etc/rc\.d/init\.d/cgred	--	gen_context(system_u:object_r:cgred_initrc_exec_t,s0)
+
+/sbin/cgclear				--	gen_context(system_u:object_r:cgclear_exec_t,s0)
+/sbin/cgconfigparser		--	gen_context(system_u:object_r:cgconfigparser_exec_t,s0)
+/sbin/cgrulesengd			--	gen_context(system_u:object_r:cgred_exec_t,s0)
+
+/var/run/cgred.*				gen_context(system_u:object_r:cgred_var_run_t,s0)
+
diff --git a/policy/modules/services/cgroup.if b/policy/modules/services/cgroup.if
new file mode 100644
index 0000000..abcab97
--- /dev/null
+++ b/policy/modules/services/cgroup.if
@@ -0,0 +1,126 @@
+## <summary>Control group rules engine daemon.</summary>
+## <desc>
+##	<p>
+##		cgrulesengd is a daemon, which distributes processes
+##		to control groups. When any process changes its
+##		effective UID or GID, cgred inspects list of
+##		rules loaded from cgrules.conf file and moves the
+##		process to the appropriate control group.
+##	</p>
+##	<p>
+##		The list of rules is read during the daemon startup and
+##		are cached in daemons memory. The daemon reloads the
+##		list of rules when it receives SIGUSR2 signal.
+##	</p>
+## </desc>
+
+########################################
+## <summary>
+##	Delete cgroup directories.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`cgroup_delete_cgroup_dirs', `
+	gen_require(`
+		type cgroup_t;
+	')
+
+	delete_dirs_pattern($1, cgroup_t, cgroup_t)
+	cgroup_search_cgroup_dirs($1)
+')
+
+########################################
+## <summary>
+##	List cgroup directories.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`cgroup_list_cgroup_dirs', `
+	gen_require(`
+		type cgroup_t;
+	')
+
+	allow $1 cgroup_t:dir list_dir_perms;
+')
+
+########################################
+## <summary>
+##	Manage cgroup directories.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`cgroup_manage_cgroup_dirs', `
+	gen_require(`
+		type cgroup_t;
+	')
+
+	allow $1 cgroup_t:dir manage_dir_perms;
+')
+
+########################################
+## <summary>
+##	Read and write cgroup directories.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`cgroup_rw_cgroup_dirs', `
+	gen_require(`
+		type cgroup_t;
+	')
+
+	allow $1 cgroup_t:dir rw_dir_perms;
+')
+
+########################################
+## <summary>
+##	Search cgroup directories.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`cgroup_search_cgroup_dirs', `
+	gen_require(`
+		type cgroup_t;
+	')
+
+	allow $1 cgroup_t:dir search_dir_perms;
+')
+
+########################################
+## <summary>
+##	Read and write cgred sock file in /var/run.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`cgroup_stream_connect', `
+	gen_require(`
+		type cgred_var_run_t, cgred_t;
+	')
+
+	files_search_pids($1)
+	stream_connect_pattern($1, cgred_var_run_t, cgred_var_run_t, cgred_t)
+')
+
diff --git a/policy/modules/services/cgroup.te b/policy/modules/services/cgroup.te
new file mode 100644
index 0000000..67facee
--- /dev/null
+++ b/policy/modules/services/cgroup.te
@@ -0,0 +1,111 @@
+
+policy_module(cgroup, 1.0.0)
+
+########################################
+#
+# cgroup global declarations.
+#
+
+type cgroup_t;
+files_mountpoint(cgroup_t)
+
+########################################
+#
+# cgclear personal declarations.
+#
+
+type cgclear_t;
+type cgclear_exec_t;
+init_daemon_domain(cgclear_t, cgclear_exec_t)
+
+########################################
+#
+# cgconfig personal declarations.
+#
+
+type cgconfigparser_t;
+type cgconfigparser_exec_t;
+init_daemon_domain(cgconfigparser_t, cgconfigparser_exec_t)
+
+type cgconfig_initrc_exec_t;
+init_script_file(cgconfig_initrc_exec_t)
+
+########################################
+#
+# cgred personal declarations.
+#
+
+type cgred_t;
+type cgred_exec_t;
+init_daemon_domain(cgred_t, cgred_exec_t)
+
+type cgred_initrc_exec_t;
+init_script_file(cgred_initrc_exec_t)
+
+type cgred_var_run_t;
+files_pid_file(cgred_var_run_t)
+
+########################################
+#
+# cgclear personal policy.
+#
+
+kernel_read_system_state(cgclear_t)
+
+fs_delete_cgroupfs_dirs(cgclear_t)
+fs_list_cgroupfs_dirs(cgclear_t)
+fs_rw_cgroupfs_files(cgclear_t)
+fs_unmount_cgroupfs(cgclear_t)
+
+cgroup_delete_cgroup_dirs(cgclear_t)
+
+########################################
+#
+# cgconfig personal policy.
+#
+
+manage_dirs_pattern(cgconfigparser_t, cgroup_t, cgroup_t)
+manage_files_pattern(cgconfigparser_t, cgroup_t, cgroup_t)
+allow cgconfigparser_t cgroup_t:dir mounton;
+
+kernel_list_unlabeled(cgconfigparser_t)
+kernel_read_system_state(cgconfigparser_t)
+
+files_read_etc_files(cgconfigparser_t)
+
+fs_manage_cgroupfs_dirs(cgconfigparser_t)
+fs_mount_cgroupfs(cgconfigparser_t)
+fs_rw_cgroupfs_files(cgconfigparser_t)
+fs_setattr_cgroupfs_files(cgconfigparser_t)
+
+########################################
+#
+# cgred personal policy.
+#
+
+allow cgred_t self:capability { net_admin sys_ptrace dac_override };
+allow cgred_t self:netlink_socket { write bind create read };
+allow cgred_t self:unix_dgram_socket { write create connect };
+
+manage_sock_files_pattern(cgred_t, cgred_var_run_t, cgred_var_run_t)
+files_pid_filetrans(cgred_t, cgred_var_run_t, sock_file)
+
+kernel_read_system_state(cgred_t)
+
+domain_read_all_domains_state(cgred_t)
+
+files_read_etc_files(cgred_t)
+
+files_search_all(cgred_t)
+files_getattr_all_files(cgred_t)
+files_getattr_all_dirs(cgred_t)
+files_getattr_all_sockets(cgred_t)
+files_getattr_all_pipes(cgred_t)
+files_read_all_symlinks(cgred_t)
+
+fs_write_cgroupfs_files(cgred_t)
+
+logging_send_syslog_msg(cgred_t)
+
+miscfiles_read_localization(cgred_t)
+
-- 
1.7.0.1

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