add avahi

refpolicy/Changelog

@@ -3,6 +3,7 @@
 - DISTRO=redhat now implies DIRECT_INITRC=y.
 - Added policies:
 	amanda
+	avahi
 	canna
 	cyrus
 	dbskk

refpolicy/policy/modules/services/avahi.fc

@@ -0,0 +1,5 @@
+
+/usr/sbin/avahi-daemon		--	gen_context(system_u:object_r:avahi_exec_t,s0)
+/usr/sbin/avahi-dnsconfd 	--	gen_context(system_u:object_r:avahi_exec_t,s0)
+
+/var/run/avahi-daemon(/.*)? 		gen_context(system_u:object_r:avahi_var_run_t,s0)

refpolicy/policy/modules/services/avahi.if

@@ -0,0 +1 @@
+## <summary>mDNS/DNS-SD daemon implementing Apple ZeroConf architecture</summary>

refpolicy/policy/modules/services/avahi.te

@@ -0,0 +1,115 @@
+
+policy_module(avahi,1.0)
+
+########################################
+#
+# Declarations
+#
+
+type avahi_t;
+type avahi_exec_t;
+init_daemon_domain(avahi_t,avahi_exec_t)
+
+type avahi_var_run_t;
+files_pid_file(avahi_var_run_t)
+
+########################################
+#
+# Local policy
+#
+
+allow avahi_t self:capability { dac_override setgid chown kill setuid };
+dontaudit avahi_t self:capability sys_tty_config;
+allow avahi_t self:process { setrlimit signal_perms };
+allow avahi_t self:fifo_file { read write };
+allow avahi_t self:unix_stream_socket { connectto create_stream_socket_perms };
+allow avahi_t self:unix_dgram_socket create_socket_perms;
+allow avahi_t self:netlink_route_socket r_netlink_socket_perms;
+allow avahi_t self:tcp_socket create_stream_socket_perms;
+allow avahi_t self:udp_socket create_socket_perms;
+
+allow avahi_t avahi_var_run_t:sock_file create_file_perms;
+allow avahi_t avahi_var_run_t:file create_file_perms;
+allow avahi_t avahi_var_run_t:dir { rw_dir_perms setattr };
+files_create_pid(avahi_t,avahi_var_run_t)
+
+kernel_read_kernel_sysctl(avahi_t)
+kernel_list_proc(avahi_t)
+kernel_read_proc_symlinks(avahi_t)
+kernel_read_network_state(avahi_t)
+
+corenet_tcp_sendrecv_all_if(avahi_t)
+corenet_raw_sendrecv_all_if(avahi_t)
+corenet_udp_sendrecv_all_if(avahi_t)
+corenet_tcp_sendrecv_all_nodes(avahi_t)
+corenet_raw_sendrecv_all_nodes(avahi_t)
+corenet_udp_sendrecv_all_nodes(avahi_t)
+corenet_tcp_sendrecv_all_ports(avahi_t)
+corenet_udp_sendrecv_all_ports(avahi_t)
+corenet_tcp_bind_all_nodes(avahi_t)
+corenet_udp_bind_all_nodes(avahi_t)
+corenet_tcp_bind_howl_port(avahi_t)
+corenet_udp_bind_howl_port(avahi_t)
+
+dev_read_sysfs(avahi_t)
+dev_read_urand(avahi_t)
+
+fs_getattr_all_fs(avahi_t)
+fs_search_auto_mountpoints(avahi_t)
+
+term_dontaudit_use_console(avahi_t)
+
+domain_use_wide_inherit_fd(avahi_t)
+
+files_read_etc_files(avahi_t)
+
+init_use_fd(avahi_t)
+init_use_script_pty(avahi_t)
+init_signal_script(avahi_t)
+init_signull_script(avahi_t)
+
+libs_use_ld_so(avahi_t)
+libs_use_shared_libs(avahi_t)
+
+logging_send_syslog_msg(avahi_t)
+
+miscfiles_read_localization(avahi_t)
+
+sysnet_read_config(avahi_t)
+
+userdom_dontaudit_use_unpriv_user_fd(avahi_t)
+userdom_dontaudit_search_sysadm_home_dir(avahi_t)
+
+ifdef(`targeted_policy',`
+	term_dontaudit_use_unallocated_tty(avahi_t)
+	term_dontaudit_use_generic_pty(avahi_t)
+	files_dontaudit_read_root_file(avahi_t)
+')
+
+optional_policy(`dbus.te',`
+	dbus_system_bus_client_template(avahi,avahi_t)
+	dbus_connect_system_bus(avahi_t)
+	dbus_send_system_bus_msg(avahi_t)
+
+	# FIXME:
+	allow avahi_t unconfined_t:dbus send_msg;
+	allow unconfined_t avahi_t:dbus send_msg;
+')
+
+optional_policy(`nis.te',`
+	nis_use_ypbind(avahi_t)
+')
+
+optional_policy(`selinuxutil.te',`
+	seutil_sigchld_newrole(avahi_t)
+')
+
+optional_policy(`udev.te',`
+	udev_read_db(avahi_t)
+')
+
+ifdef(`TODO',`
+optional_policy(`rhgb.te',`
+	rhgb_domain(avahi_t)
+')
+') dnl end TODO

refpolicy/policy/modules/system/init.if

@@ -579,6 +579,38 @@ interface(`init_sigchld_script',`
 	allow $1 initrc_t:process sigchld;
 ')
 
+########################################
+## <summary>
+##	Send generic signals to init scripts.
+## </summary>
+## <param name="domain">
+##	Domain allowed access.
+## </param>
+#
+interface(`init_signal_script',`
+	gen_require(`
+		type initrc_t;
+	')
+
+	allow $1 initrc_t:process signal;
+')
+
+########################################
+## <summary>
+##	Send null signals to init scripts.
+## </summary>
+## <param name="domain">
+##	Domain allowed access.
+## </param>
+#
+interface(`init_signull_script',`
+	gen_require(`
+		type initrc_t;
+	')
+
+	allow $1 initrc_t:process signull;
+')
+
 ########################################
 ## <summary>
 ##	Read and write init script unnamed pipes.