avahi.if

## <summary>mDNS/DNS-SD daemon implementing Apple ZeroConf architecture.</summary>

########################################
## <summary>
##	Execute avahi server in the avahi domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`avahi_domtrans',`
	gen_require(`
		type avahi_exec_t, avahi_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, avahi_exec_t, avahi_t)
')

########################################
## <summary>
##	Execute avahi init scripts in the
##	init script domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`avahi_initrc_domtrans',`
	gen_require(`
		type avahi_initrc_exec_t;
	')

	init_labeled_script_domtrans($1, avahi_initrc_exec_t)
')

########################################
## <summary>
##	Send generic signals to avahi.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`avahi_signal',`
	gen_require(`
		type avahi_t;
	')

	allow $1 avahi_t:process signal;
')

########################################
## <summary>
##	Send kill signals to avahi.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`avahi_kill',`
	gen_require(`
		type avahi_t;
	')

	allow $1 avahi_t:process sigkill;
')

########################################
## <summary>
##	Send null signals to avahi.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`avahi_signull',`
	gen_require(`
		type avahi_t;
	')

	allow $1 avahi_t:process signull;
')

########################################
## <summary>
##	Send and receive messages from
##	avahi over dbus.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`avahi_dbus_chat',`
	gen_require(`
		type avahi_t;
		class dbus send_msg;
	')

	allow $1 avahi_t:dbus send_msg;
	allow avahi_t $1:dbus send_msg;
')

########################################
## <summary>
##	Connect to avahi using a unix
##	stream socket.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`avahi_stream_connect',`
	gen_require(`
		type avahi_t, avahi_var_run_t;
	')

	files_search_pids($1)
	stream_connect_pattern($1, avahi_var_run_t, avahi_var_run_t, avahi_t)
')

########################################
## <summary>
##	Create avahi pid directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`avahi_create_pid_dirs',`
	gen_require(`
		type avahi_var_run_t;
	')

	files_search_pids($1)
	allow $1 avahi_var_run_t:dir create_dir_perms;
')

########################################
## <summary>
##	Set attributes of avahi pid directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`avahi_setattr_pid_dirs',`
	gen_require(`
		type avahi_var_run_t;
	')

	files_search_pids($1)
	allow $1 avahi_var_run_t:dir setattr_dir_perms;
')

########################################
## <summary>
##	Create, read, and write avahi pid files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`avahi_manage_pid_files',`
	gen_require(`
		type avahi_var_run_t;
	')

	files_search_pids($1)
	manage_files_pattern($1, avahi_var_run_t, avahi_var_run_t)
')

########################################
## <summary>
##	Do not audit attempts to search
##	avahi pid directories.
## </summary>
## <param name="domain">
##	<summary>
##	Domain to not audit.
##	</summary>
## </param>
#
interface(`avahi_dontaudit_search_pid',`
	gen_require(`
		type avahi_var_run_t;
	')

	dontaudit $1 avahi_var_run_t:dir search_dir_perms;
')

########################################
## <summary>
##	Execute avahi server in the avahi domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`avahi_systemctl',`
	gen_require(`
		type avahi_t;
		type avahi_unit_file_t;
	')

	systemd_exec_systemctl($1)
	init_reload_services($1)
	allow $1 avahi_unit_file_t:file read_file_perms;
	allow $1 avahi_unit_file_t:service manage_service_perms;

	ps_process_pattern($1, avahi_t)
')

########################################
## <summary>
##	Create specified objects in generic
##	pid directories with the avahi pid file type.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="object_class">
##	<summary>
##	Class of the object being created.
##	</summary>
## </param>
## <param name="name" optional="true">
##	<summary>
##	The name of the object being created.
##	</summary>
## </param>
#
interface(`avahi_filetrans_pid',`
	gen_require(`
		type avahi_var_run_t;
	')

	files_pid_filetrans($1, avahi_var_run_t, $2, $3)
')

########################################
## <summary>
##	All of the rules required to
##	administrate an avahi environment.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`avahi_admin',`
	gen_require(`
		type avahi_t, avahi_var_run_t, avahi_initrc_exec_t;
		type avahi_unit_file_t;
		type avahi_var_lib_t;
	')

	allow $1 avahi_t:process signal_perms;
	ps_process_pattern($1, avahi_t)

	tunable_policy(`deny_ptrace',`',`
		allow $1 avahi_t:process ptrace;
	')

	avahi_initrc_domtrans($1)
	domain_system_change_exemption($1)
	role_transition $2 avahi_initrc_exec_t system_r;
	allow $2 system_r;

	files_search_pids($1)
	admin_pattern($1, avahi_var_run_t)

	files_search_var_lib($1)
	admin_pattern($1, avahi_var_lib_t)

	avahi_systemctl($1)
	admin_pattern($1, avahi_unit_file_t)
	allow $1 avahi_unit_file_t:service all_service_perms;
')