selinux-policy/policy/modules/services/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>
##	Send avahi a signal
## </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 avahi a kill signal.
## </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 avahi a signull
## </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 avahi_t $1:file read;
	allow $1 avahi_t:dbus send_msg;
	allow avahi_t $1:dbus send_msg;
')

########################################
## <summary>
##	Connect to avahi using a unix domain 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>
##	Do not audit attempts to search the avahi pid directory.
## </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>
##	All of the rules required to administrate 
##	an avahi environment
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	The role to be allowed to manage the avahi domain.
##	</summary>
## </param>
## <rolecap/>
#
interface(`avahi_admin',`
	gen_require(`
		type avahi_t, avahi_var_run_t;
		type avahi_initrc_exec_t;
	')

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

	init_labeled_script_domtrans($1, avahi_initrc_exec_t)
	domain_system_change_exemption($1)
	role_transition $2 avahi_initrc_exec_t system_r;
	allow $2 system_r;

	files_list_pids($1)
	admin_pattern($1, avahi_var_run_t)
')