alsa.if

## <summary>Advanced Linux Sound Architecture utilities.</summary>

########################################
## <summary>
##	Role access for alsa.
## </summary>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <param name="domain">
##	<summary>
##	User domain for the role.
##	</summary>
## </param>
#
template(`alsa_role',`
	refpolicywarn(`$0($*) has been deprecated')
')

########################################
## <summary>
##	Execute a domain transition to run Alsa.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`alsa_domtrans',`
	gen_require(`
		type alsa_t, alsa_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, alsa_exec_t, alsa_t)
')

########################################
## <summary>
##	Execute a domain transition to run
##	Alsa, and allow the specified role
##	the Alsa domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
#
interface(`alsa_run',`
	gen_require(`
		attribute_role alsa_roles;
	')

	alsa_domtrans($1)
	roleattribute $2 alsa_roles;
')

########################################
## <summary>
##	Read and write Alsa semaphores.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`alsa_rw_semaphores',`
	gen_require(`
		type alsa_t;
	')

	allow $1 alsa_t:sem rw_sem_perms;
')

########################################
## <summary>
##	Read and write Alsa shared memory.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`alsa_rw_shared_mem',`
	gen_require(`
		type alsa_t;
	')

	allow $1 alsa_t:shm rw_shm_perms;
')

########################################
## <summary>
##	Read writable Alsa configuration content.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`alsa_read_rw_config',`
	gen_require(`
		type alsa_etc_rw_t;
	')

	files_search_etc($1)
	allow $1 alsa_etc_rw_t:dir list_dir_perms;
	read_files_pattern($1, alsa_etc_rw_t, alsa_etc_rw_t)
	read_lnk_files_pattern($1, alsa_etc_rw_t, alsa_etc_rw_t)

	ifdef(`distro_debian',`
		files_search_usr($1)
	')
')

########################################
## <summary>
##	Manage writable Alsa config files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`alsa_manage_rw_config',`
	gen_require(`
		type alsa_etc_rw_t;
	')

	files_search_etc($1)
	allow $1 alsa_etc_rw_t:dir list_dir_perms;
	manage_files_pattern($1, alsa_etc_rw_t, alsa_etc_rw_t)
	read_lnk_files_pattern($1, alsa_etc_rw_t, alsa_etc_rw_t)

	ifdef(`distro_debian',`
		files_search_usr($1)
	')
')

########################################
## <summary>
##	Create, read, write, and delete
##	alsa home files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`alsa_manage_home_files',`
	gen_require(`
		type alsa_home_t;
	')

	userdom_search_user_home_dirs($1)
	allow $1 alsa_home_t:file manage_file_perms;
	alsa_filetrans_home_content($1)
')

########################################
## <summary>
##	Read Alsa home files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`alsa_read_home_files',`
	gen_require(`
		type alsa_home_t;
	')

	userdom_search_user_home_dirs($1)
	allow $1 alsa_home_t:file read_file_perms;
')

########################################
## <summary>
##	Relabel alsa home files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`alsa_relabel_home_files',`
	gen_require(`
		type alsa_home_t;
	')

	userdom_search_user_home_dirs($1)
	allow $1 alsa_home_t:file relabel_file_perms;
')

########################################
## <summary>
##	Read Alsa lib files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`alsa_read_lib',`
	gen_require(`
		type alsa_var_lib_t;
	')

	files_search_var_lib($1)
	read_files_pattern($1, alsa_var_lib_t, alsa_var_lib_t)
')

########################################
## <summary>
##	Transition to alsa named content
## </summary>
## <param name="domain">
##	<summary>
##      Domain allowed access.
##	</summary>
## </param>
#
interface(`alsa_filetrans_home_content',`
	gen_require(`
		type alsa_home_t;
	')

	userdom_user_home_dir_filetrans($1, alsa_home_t, file, ".asoundrc")
')

########################################
## <summary>
##	Transition to alsa named content
## </summary>
## <param name="domain">
##	<summary>
##      Domain allowed access.
##	</summary>
## </param>
#
interface(`alsa_filetrans_named_content',`
	gen_require(`
		type alsa_home_t;
		type alsa_etc_rw_t;
		type alsa_var_lib_t;
	')

	files_etc_filetrans($1, alsa_etc_rw_t, file, "asound.state")
	files_etc_filetrans($1, alsa_etc_rw_t, dir, "pcm")
	files_etc_filetrans($1, alsa_etc_rw_t, dir, "asound")
	files_usr_filetrans($1, alsa_etc_rw_t, file, "alsa.conf")
	files_usr_filetrans($1, alsa_etc_rw_t, dir, "pcm")
	files_var_lib_filetrans($1, alsa_var_lib_t, dir, "alsa")
')

########################################
## <summary>
##	Execute alsa server in the alsa domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`alsa_systemctl',`
	gen_require(`
		type alsa_t;
		type alsa_unit_file_t;
	')

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

	ps_process_pattern($1, alsa_t)
')

#########################################
## <summary>
##	Write Alsa lib files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`alsa_write_lib',`
	gen_require(`
		type alsa_var_lib_t;
	')

	files_search_var_lib($1)
	write_files_pattern($1, alsa_var_lib_t, alsa_var_lib_t)
')