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## <summary>Software for reliable, scalable, distributed computing.</summary>

#######################################
## <summary>
##	The template to define a hadoop domain.
## </summary>
## <param name="domain_prefix">
##	<summary>
##	Domain prefix to be used.
##	</summary>
## </param>
#
template(`hadoop_domain_template',`
	gen_require(`
		attribute hadoop_domain, hadoop_initrc_domain, hadoop_init_script_file;
		attribute hadoop_pid_file, hadoop_lock_file, hadoop_log_file;
		attribute hadoop_tmp_file, hadoop_var_lib_file;
		type hadoop_log_t, hadoop_var_lib_t, hadoop_var_run_t;
		type hadoop_exec_t, hadoop_hsperfdata_t;
	')

	########################################
	#
	# Declarations
	#

	type hadoop_$1_t, hadoop_domain;
	domain_type(hadoop_$1_t)
	domain_entry_file(hadoop_$1_t, hadoop_exec_t)
	role system_r types hadoop_$1_t;

	type hadoop_$1_initrc_t, hadoop_initrc_domain;
	type hadoop_$1_initrc_exec_t, hadoop_init_script_file;
	init_script_domain(hadoop_$1_initrc_t, hadoop_$1_initrc_exec_t)
	role system_r types hadoop_$1_initrc_t;

	type hadoop_$1_initrc_var_run_t, hadoop_pid_file;
	files_pid_file(hadoop_$1_initrc_var_run_t)

	type hadoop_$1_lock_t, hadoop_lock_file;
	files_lock_file(hadoop_$1_lock_t)

	type hadoop_$1_log_t, hadoop_log_file;
	logging_log_file(hadoop_$1_log_t)

	type hadoop_$1_tmp_t, hadoop_tmp_file;
	files_tmp_file(hadoop_$1_tmp_t)

	type hadoop_$1_var_lib_t, hadoop_var_lib_file;
	files_type(hadoop_$1_var_lib_t)

	####################################
	#
	# hadoop_domain policy
	#

	manage_files_pattern(hadoop_$1_t, hadoop_$1_log_t, hadoop_$1_log_t)
	filetrans_pattern(hadoop_$1_t, hadoop_log_t, hadoop_$1_log_t, { dir file })

	manage_dirs_pattern(hadoop_$1_t, hadoop_$1_var_lib_t, hadoop_$1_var_lib_t)
	manage_files_pattern(hadoop_$1_t, hadoop_$1_var_lib_t, hadoop_$1_var_lib_t)
	filetrans_pattern(hadoop_$1_t, hadoop_var_lib_t, hadoop_$1_var_lib_t, file)

	manage_files_pattern(hadoop_$1_t, hadoop_$1_initrc_var_run_t, hadoop_$1_initrc_var_run_t)
	filetrans_pattern(hadoop_$1_t, hadoop_var_run_t, hadoop_$1_initrc_var_run_t, file)

	manage_files_pattern(hadoop_$1_t, hadoop_$1_tmp_t, hadoop_$1_tmp_t)
	filetrans_pattern(hadoop_$1_t, hadoop_hsperfdata_t, hadoop_$1_tmp_t, file)

	auth_use_nsswitch(hadoop_$1_t)

	####################################
	#
	# hadoop_initrc_domain policy
	#

	allow hadoop_$1_initrc_t hadoop_$1_t:process { signal signull };

	domtrans_pattern(hadoop_$1_initrc_t, hadoop_exec_t, hadoop_$1_t)

	manage_files_pattern(hadoop_$1_initrc_t, hadoop_$1_lock_t, hadoop_$1_lock_t)
	files_lock_filetrans(hadoop_$1_initrc_t, hadoop_$1_lock_t, file)

	manage_files_pattern(hadoop_$1_initrc_t, hadoop_$1_initrc_var_run_t, hadoop_$1_initrc_var_run_t)
	filetrans_pattern(hadoop_$1_initrc_t, hadoop_var_run_t, hadoop_$1_initrc_var_run_t, file)

	manage_files_pattern(hadoop_$1_initrc_t, hadoop_$1_log_t, hadoop_$1_log_t)
	filetrans_pattern(hadoop_$1_initrc_t, hadoop_log_t, hadoop_$1_log_t, { dir file })
')

########################################
## <summary>
##	Role access for hadoop.
## </summary>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`hadoop_role',`
	gen_require(`
		attribute_role hadoop_roles, zookeeper_roles;
		type hadoop_t, zookeeper_t, hadoop_home_t;
		type hadoop_tmp_t, hadoop_hsperfdata_t, zookeeper_tmp_t;
	')

	hadoop_domtrans($2)
	roleattribute $1 hadoop_roles;

	hadoop_domtrans_zookeeper_client($2)
	roleattribute $1 zookeeper_roles;

	allow $2 { hadoop_t zookeeper_t }:process { ptrace signal_perms };
	ps_process_pattern($2, { hadoop_t zookeeper_t })

	allow $2 { hadoop_home_t hadoop_tmp_t hadoop_hsperfdata_t }:dir { manage_dir_perms relabel_dir_perms };
	allow $2 { hadoop_home_t hadoop_tmp_t zookeeper_tmp_t }:file { manage_file_perms relabel_file_perms };
	allow $2 hadoop_home_t:lnk_file { manage_lnk_file_perms relabel_lnk_file_perms };
')

########################################
## <summary>
##	Execute hadoop in the
##	hadoop domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`hadoop_domtrans',`
	gen_require(`
		type hadoop_t, hadoop_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, hadoop_exec_t, hadoop_t)
')

########################################
## <summary>
##	Receive from hadoop peer.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`hadoop_recvfrom',`
	gen_require(`
		type hadoop_t;
	')

	allow $1 hadoop_t:peer recv;
')

########################################
## <summary>
##	Execute zookeeper client in the
##	zookeeper client domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`hadoop_domtrans_zookeeper_client',`
	gen_require(`
		type zookeeper_t, zookeeper_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, zookeeper_exec_t, zookeeper_t)
')

########################################
## <summary>
##	Receive from zookeeper peer.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`hadoop_recvfrom_zookeeper_client',`
	gen_require(`
		type zookeeper_t;
	')

	allow $1 zookeeper_t:peer recv;
')

########################################
## <summary>
##	Execute zookeeper server in the
##	zookeeper server domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed to transition.
##	</summary>
## </param>
#
interface(`hadoop_domtrans_zookeeper_server',`
	gen_require(`
		type zookeeper_server_t, zookeeper_server_exec_t;
	')

	corecmd_search_bin($1)
	domtrans_pattern($1, zookeeper_server_exec_t, zookeeper_server_t)
')

########################################
## <summary>
##	Receive from zookeeper server peer.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`hadoop_recvfrom_zookeeper_server',`
	gen_require(`
		type zookeeper_server_t;
	')

	allow $1 zookeeper_server_t:peer recv;
')

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

	init_labeled_script_domtrans($1, zookeeper_server_initrc_exec_t)
')

########################################
## <summary>
##	Receive from datanode peer.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`hadoop_recvfrom_datanode',`
	gen_require(`
		type hadoop_datanode_t;
	')

	allow $1 hadoop_datanode_t:peer recv;
')

########################################
## <summary>
##	Read hadoop configuration files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`hadoop_read_config',`
	gen_require(`
		type hadoop_etc_t;
	')

	read_files_pattern($1, hadoop_etc_t, hadoop_etc_t)
	read_lnk_files_pattern($1, hadoop_etc_t, hadoop_etc_t)
')

########################################
## <summary>
##	Execute hadoop configuration files.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`hadoop_exec_config',`
	gen_require(`
		type hadoop_etc_t;
	')

	hadoop_read_config($1)
	allow $1 hadoop_etc_t:file exec_file_perms;
')

########################################
## <summary>
##	Receive from jobtracker peer.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`hadoop_recvfrom_jobtracker',`
	gen_require(`
		type hadoop_jobtracker_t;
	')

	allow $1 hadoop_jobtracker_t:peer recv;
')

########################################
## <summary>
##	Match hadoop lan association.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`hadoop_match_lan_spd',`
	gen_require(`
		type hadoop_lan_t;
	')

	allow $1 hadoop_lan_t:association polmatch;
')

########################################
## <summary>
##	Receive from namenode peer.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`hadoop_recvfrom_namenode',`
	gen_require(`
		type hadoop_namenode_t;
	')

	allow $1 hadoop_namenode_t:peer recv;
')

########################################
## <summary>
##	Receive from secondary namenode peer.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`hadoop_recvfrom_secondarynamenode',`
	gen_require(`
		type hadoop_secondarynamenode_t;
	')

	allow $1 hadoop_secondarynamenode_t:peer recv;
')

########################################
## <summary>
##	Receive from tasktracker peer.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`hadoop_recvfrom_tasktracker',`
	gen_require(`
		type hadoop_tasktracker_t;
	')

	allow $1 hadoop_tasktracker_t:peer recv;
')

########################################
## <summary>
##	All of the rules required to
##	administrate an hadoop environment.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
## <param name="role">
##	<summary>
##	Role allowed access.
##	</summary>
## </param>
## <rolecap/>
#
interface(`hadoop_admin',`
	gen_require(`
		attribute hadoop_domain;
		attribute hadoop_initrc_domain;

		attribute hadoop_init_script_file;
		attribute hadoop_pid_file;
		attribute hadoop_lock_file;
		attribute hadoop_log_file;
		attribute hadoop_tmp_file;
		attribute hadoop_var_lib_file;

		type hadoop_t, hadoop_etc_t, hadoop_hsperfdata_t;
		type zookeeper_t, zookeeper_etc_t, zookeeper_server_t;
		type zookeeper_server_var_t;
	')

	allow $1 { hadoop_domain hadoop_initrc_domain hadoop_t zookeeper_t zookeeper_server_t }:process { ptrace signal_perms };
	ps_process_pattern($1, { hadoop_domain hadoop_initrc_domain hadoop_t zookeeper_t zookeeper_server_t })

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

	files_search_etc($1)
	admin_pattern($1, { hadoop_etc_t zookeeper_etc_t })

	logging_search_logs($1)
	admin_pattern($1, hadoop_log_file)

	files_search_locks($1)
	admin_pattern($1, hadoop_lock_file)

	files_search_pids($1)
	admin_pattern($1, hadoop_pid_file)

	files_search_tmp($1)
	admin_pattern($1, { hadoop_tmp_file hadoop_hsperfdata_t })

	files_search_var_lib($1)
	admin_pattern($1, { hadoop_var_lib_file zookeeper_server_var_t })

	hadoop_role($2, $1)
')