selinux-policy/policy/modules/services/nscd.if

## <summary>Name service cache daemon</summary>

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

	allow $1 nscd_t:process signal;
')

########################################
## <summary>
##	Send NSCD the kill signal.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`nscd_kill',`
	gen_require(`
		type nscd_t;
	')

	allow $1 nscd_t:process sigkill;
')

########################################
## <summary>
##	Send signulls to NSCD.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`nscd_signull',`
	gen_require(`
		type nscd_t;
	')

	allow $1 nscd_t:process signull;
')

########################################
## <summary>
##	Execute NSCD in the nscd domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`nscd_domtrans',`
	gen_require(`
		type nscd_t, nscd_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, nscd_exec_t, nscd_t)
')

########################################
## <summary>
##	Allow the specified domain to execute nscd
##	in the caller domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`nscd_exec',`
	gen_require(`
		type nscd_exec_t;
	')

	can_exec($1, nscd_exec_t)
')

########################################
## <summary>
##	Use NSCD services by connecting using
##	a unix stream socket.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`nscd_socket_use',`
	gen_require(`
		type nscd_t, nscd_var_run_t;
		class nscd { getserv getpwd getgrp gethost shmempwd shmemgrp shmemhost shmemserv };
	')

	allow $1 self:unix_stream_socket create_socket_perms;

	allow $1 nscd_t:nscd { getpwd getgrp gethost };
	dontaudit $1 nscd_t:fd use;
	dontaudit $1 nscd_t:nscd { getserv shmempwd shmemgrp shmemhost shmemserv };
	files_search_pids($1)
	stream_connect_pattern($1, nscd_var_run_t, nscd_var_run_t, nscd_t)
	dontaudit $1 nscd_var_run_t:file { getattr read };
')

########################################
## <summary>
##	Use nscd services
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`nscd_use',`
	tunable_policy(`nscd_use_shm',`
		nscd_shm_use($1)
	',`
		nscd_socket_use($1)
	')
')

########################################
## <summary>
##	Use NSCD services by mapping the database from
##	an inherited NSCD file descriptor.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`nscd_shm_use',`
	gen_require(`
		type nscd_t, nscd_var_run_t;
		class nscd { getpwd getgrp gethost shmempwd shmemgrp shmemhost };
	')

	allow $1 nscd_var_run_t:dir list_dir_perms;
	allow $1 nscd_t:nscd { shmempwd shmemgrp shmemhost };

	# Receive fd from nscd and map the backing file with read access.
	allow $1 nscd_t:fd use;

	# cjp: these were originally inherited from the
	# nscd_socket_domain macro. need to investigate
	# if they are all actually required
	allow $1 self:unix_stream_socket create_stream_socket_perms;

	# dg: This may not be required.
	allow $1 nscd_var_run_t:sock_file read_sock_file_perms;

	stream_connect_pattern($1, nscd_var_run_t, nscd_var_run_t, nscd_t)
	files_search_pids($1)
	allow $1 nscd_t:nscd { getpwd getgrp gethost };
	dontaudit $1 nscd_var_run_t:file { getattr read };
')

########################################
## <summary>
##	Do not audit attempts to search the NSCD pid directory.
## </summary>
## <param name="domain">
##	<summary>
##	Domain to not audit.
##	</summary>
## </param>
#
interface(`nscd_dontaudit_search_pid',`
	gen_require(`
		type nscd_var_run_t;
	')

	dontaudit $1 nscd_var_run_t:dir search_dir_perms;
')

########################################
## <summary>
##	Read NSCD pid file.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`nscd_read_pid',`
	gen_require(`
		type nscd_var_run_t;
	')

	files_search_pids($1)
	read_files_pattern($1, nscd_var_run_t, nscd_var_run_t)
')

########################################
## <summary>
##	Unconfined access to NSCD services.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`nscd_unconfined',`
	gen_require(`
		type nscd_t;
		class nscd all_nscd_perms;
	')

	allow $1 nscd_t:nscd *;
')

########################################
## <summary>
##	Execute nscd in the nscd domain, and
##	allow the specified role the nscd domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
#
interface(`nscd_run',`
	gen_require(`
		type nscd_t;
	')

	nscd_domtrans($1)
	role $2 types nscd_t;
')

########################################
## <summary>
##	Execute the nscd server init script.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`nscd_initrc_domtrans',`
	gen_require(`
		type nscd_initrc_exec_t;
	')

	init_labeled_script_domtrans($1, nscd_initrc_exec_t)
')

########################################
## <summary>
##	All of the rules required to administrate 
##	an nscd environment
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	The role to be allowed to manage the nscd domain.
##	</summary>
## </param>
## <rolecap/>
#
interface(`nscd_admin',`
	gen_require(`
		type nscd_t, nscd_log_t, nscd_var_run_t;
		type nscd_initrc_exec_t;
	')

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

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

	logging_list_logs($1)
	admin_pattern($1, nscd_log_t)

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