Adding Bacula policy

This adds a new SELinux module "bacula" for the bacula backup application. Directly mapping bacula on the existing backup module was not feasible (partially because it uses both a general domain and an administrative client domain).

Policy provided by Stan Sander through https://bugs.gentoo.org/show_bug.cgi?id=396241.
Policy updated with comments from Christopher J. PeBenito.

Signed-off-by Sven Vermeulen <[email protected]>

---
 bacula.fc |   20 ++++++++++
 bacula.if |   45 ++++++++++++++++++++++
 bacula.te |  122 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 187 insertions(+), 0 deletions(-)
 create mode 100644 bacula.fc
 create mode 100644 bacula.if
 create mode 100644 bacula.te

bacula.fc new file +20 -0

new file mode 100644
index 0000000..b70b6d2
@@ -0,0 +1,20 @@
+#
+# /usr
+#
+/usr/sbin/bacula-(.*)?	--	gen_context(system_u:object_r:bacula_exec_t,s0)
+/usr/sbin/bat			gen_context(system_u:object_r:bacula_admin_exec_t,s0)
+/usr/sbin/bconsole		gen_context(system_u:object_r:bacula_admin_exec_t,s0)
+
+#
+# /etc
+#
+/etc/bacula(/.*)?		gen_context(system_u:object_r:bacula_etc_t,s0)
+
+# 
+# /var
+#
+/var/lib/bacula(/.*)?		gen_context(system_u:object_r:bacula_var_lib_t,s0)
+
+# A separate disk for backups mounted at /bacula or beginning with
+# /bacula also matches a restore directory like /bacula-restores
+/bacula(.*)?			gen_context(system_u:object_r:bacula_store_t,s0)

bacula.if new file +45 -0

new file mode 100644
index 0000000..6b1722e
@@ -0,0 +1,45 @@
+## <summary>bacula backup program</summary>
+
+########################################
+## <summary>
+##	Execute user interfaces in the bacula_admin domain.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed to transition.
+##	</summary>
+## </param>
+#
+interface(`bacula_domtrans_admin',`
+	gen_require(`
+		type bacula_admin_t, bacula_admin_exec_t;
+	')
+
+	domtrans_pattern($1, bacula_admin_exec_t, bacula_admin_t)
+')
+
+########################################
+## <summary>
+##	Execute user interfaces in the bacula_admin domain, and
+##	allow the specified role to transition to the bacula_admin domain.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed to transition.
+##	</summary>
+## </param>
+## <param name="role">
+##	<summary>
+##	Role allowed access.
+##	</summary>
+## </param>
+## <rolecap/>
+#
+interface(`bacula_run_admin',`
+	gen_require(`
+		type bacula_admin_t;
+	')
+
+	bacula_domtrans_admin($1)
+	role $2 types bacula_admin_t;
+')

bacula.te new file +122 -0

new file mode 100644
index 0000000..f2ad364
@@ -0,0 +1,122 @@
+policy_module(bacula, 1.0.0)
+
+########################################
+#
+# Declarations
+#
+
+type bacula_t;
+type bacula_exec_t;
+init_daemon_domain(bacula_t, bacula_exec_t)
+
+type bacula_etc_t;
+files_type(bacula_etc_t)
+
+type bacula_store_t;
+files_type(bacula_store_t)
+files_mountpoint(bacula_store_t)
+
+type bacula_var_lib_t;
+files_type(bacula_var_lib_t)
+
+type bacula_var_run_t;
+files_pid_file(bacula_var_run_t)
+
+type bacula_admin_t;
+type bacula_admin_exec_t;
+application_domain(bacula_admin_t, bacula_admin_exec_t)
+
+########################################
+#
+# Local policy - bacula daemon
+#
+
+allow bacula_t self:capability { dac_read_search dac_override chown fowner fsetid};
+allow bacula_t self:process signal;
+allow bacula_t self:fifo_file rw_fifo_file_perms;
+allow bacula_t self:tcp_socket create_stream_socket_perms;
+allow bacula_t self:udp_socket create_socket_perms;
+allow bacula_t self:netlink_route_socket create_netlink_socket_perms;
+
+read_files_pattern(bacula_t, bacula_etc_t, bacula_etc_t)
+
+manage_files_pattern(bacula_t, bacula_store_t, bacula_store_t)
+manage_lnk_files_pattern(bacula_t, bacula_store_t, bacula_store_t)
+manage_dirs_pattern(bacula_t, bacula_store_t, bacula_store_t)
+
+manage_files_pattern(bacula_t, bacula_var_lib_t, bacula_var_lib_t)
+files_var_lib_filetrans(bacula_t, bacula_var_lib_t, file)
+
+allow bacula_t bacula_var_run_t:file { create_file_perms write_file_perms unlink};
+files_pid_filetrans(bacula_t, bacula_var_run_t, file)
+
+kernel_read_kernel_sysctls(bacula_t)
+kernel_read_system_state(bacula_t)
+
+corecmd_exec_bin(bacula_t)
+corecmd_exec_shell(bacula_t)
+
+corenet_tcp_bind_generic_node(bacula_t)
+corenet_udp_bind_generic_node(bacula_t)
+corenet_tcp_bind_generic_port(bacula_t)
+corenet_udp_bind_generic_port(bacula_t)
+corenet_tcp_bind_hplip_port(bacula_t)
+corenet_udp_bind_hplip_port(bacula_t)
+corenet_tcp_connect_all_ports(bacula_t)
+corenet_tcp_connect_smtp_port(bacula_t)
+# Bacula's default port are listed already under hplip
+
+dev_getattr_all_blk_files(bacula_t)
+dev_getattr_all_chr_files(bacula_t)
+
+files_dontaudit_getattr_all_sockets(bacula_t)
+files_read_all_files(bacula_t)
+files_read_all_symlinks(bacula_t)
+
+fs_getattr_xattr_fs(bacula_t)
+fs_list_all(bacula_t)
+
+auth_read_shadow(bacula_t)
+
+logging_send_syslog_msg(bacula_t)
+
+optional_policy(`
+	mysql_stream_connect(bacula_t)
+	mysql_tcp_connect(bacula_t)
+')
+	
+optional_policy(`
+	nis_use_ypbind(bacula_t)
+')
+
+optional_policy(`
+	sysnet_use_ldap(bacula_t)
+	ldap_stream_connect(bacula_t)
+')
+
+
+########################################
+#
+# Local policy - bacula admin client
+#
+allow bacula_admin_t self:process signal;
+allow bacula_admin_t self:tcp_socket create_stream_socket_perms;
+allow bacula_admin_t self:dgram_socket_class_set create_socket_perms;
+
+read_files_pattern(bacula_admin_t, bacula_etc_t, bacula_etc_t)
+
+corenet_tcp_connect_hplip_port(bacula_admin_t)
+corenet_udp_sendrecv_hplip_port(bacula_admin_t)
+
+domain_use_interactive_fds(bacula_admin_t)
+
+files_read_etc_files(bacula_admin_t)
+
+miscfiles_read_localization(bacula_admin_t)
+
+sysnet_dns_name_resolve(bacula_admin_t)
+
+userdom_dontaudit_search_user_home_dirs(bacula_admin_t)
+userdom_use_user_ptys(bacula_admin_t)
+
+