policy_module(grafana, 1.0.4)

########################################
#
# Declarations
#
#permissive grafana_t;

## <desc>
## <p>
## Allow grafana to be used with a reverse proxy
## </p>
## </desc>
gen_tunable(grafana_can_reverse_proxy, false)

## <desc>
## <p>
## Allow grafana to connect to elasticsearch's default tcp port of 9200
## </p>
## </desc>
gen_tunable(grafana_can_tcp_connect_elasticsearch_port, false)

## <desc>
## <p>
## Allow grafana to connect to mysql's default tcp port of 3306
## </p>
## </desc>
gen_tunable(grafana_can_tcp_connect_mysql_port, false)

## <desc>
## <p>
## Allow grafana to connect to postgresql's default tcp port of 5432
## </p>
## </desc>
gen_tunable(grafana_can_tcp_connect_postgresql_port, false)

## <desc>
## <p>
## Allow grafana to connect to prometheus' default tcp port of 9090
## </p>
## </desc>
gen_tunable(grafana_can_tcp_connect_prometheus_port, false)


type grafana_t;
type grafana_exec_t;
init_daemon_domain(grafana_t, grafana_exec_t)
init_nnp_daemon_domain(grafana_t)

type grafana_unit_file_t;
systemd_unit_file(grafana_unit_file_t)

type grafana_conf_t;
files_config_file(grafana_conf_t)

type grafana_db_t;
files_config_file(grafana_db_t)

type grafana_tmp_t;
files_tmp_file(grafana_tmp_t)

type grafana_tmpfs_t;
files_tmpfs_file(grafana_tmpfs_t)

type grafana_log_t;
logging_log_file(grafana_log_t)

type grafana_var_run_t;
files_pid_file(grafana_var_run_t)

type grafana_var_lib_t;
files_type(grafana_var_lib_t)

type grafana_port_t;
corenet_port(grafana_port_t)

type grafana_pcp_exec_t;
corecmd_executable_file(grafana_pcp_exec_t)
can_exec(grafana_t, grafana_pcp_exec_t)

# Ports 32768-60999 (pcp port is 44322)
corenet_tcp_connect_all_ephemeral_ports(grafana_t)
grafana_exec(grafana_t)

# Allow grafana to connect to mssql's default tcp port of 1433 
corenet_tcp_connect_mssql_port(grafana_t)

########################################
#
# grafana local policy
#
allow grafana_t self:tcp_socket create_stream_socket_perms;
allow grafana_t self:udp_socket create_stream_socket_perms;
allow grafana_t self:unix_dgram_socket create_socket_perms;

allow grafana_t grafana_port_t:tcp_socket { name_bind name_connect };

allow grafana_t self:unix_stream_socket connectto;

allow grafana_t self:netlink_route_socket { create bind getattr nlmsg_read };

optional_policy(`
	require {
		type smtp_port_t;
		class tcp_socket { name_connect };
	}
	allow grafana_t smtp_port_t:tcp_socket name_connect;
')

optional_policy(`
	require {
		type usr_t;
		class file { execute execute_no_trans };
	}
	allow grafana_t usr_t:file { execute execute_no_trans };
')

optional_policy(`
	require {
		type postgresql_t;
		type postgresql_var_run_t;
		class unix_stream_socket { connectto };
		class sock_file { write };
	}
	allow grafana_t postgresql_t:unix_stream_socket connectto;
	allow grafana_t postgresql_var_run_t:sock_file write;
')

manage_dirs_pattern(grafana_t, grafana_conf_t, grafana_conf_t)
manage_files_pattern(grafana_t, grafana_conf_t, grafana_conf_t)

manage_dirs_pattern(grafana_t, grafana_db_t, grafana_db_t)
manage_files_pattern(grafana_t, grafana_db_t, grafana_db_t)

manage_dirs_pattern(grafana_t, grafana_tmp_t, grafana_tmp_t)
manage_files_pattern(grafana_t, grafana_tmp_t, grafana_tmp_t)
manage_sock_files_pattern(grafana_t, grafana_tmp_t, grafana_tmp_t)
files_tmp_filetrans(grafana_t, grafana_tmp_t, { dir file sock_file })

manage_dirs_pattern(grafana_t, grafana_tmpfs_t, grafana_tmpfs_t)
manage_files_pattern(grafana_t, grafana_tmpfs_t, grafana_tmpfs_t)
fs_tmpfs_filetrans(grafana_t, grafana_tmpfs_t, {dir file})

manage_dirs_pattern(grafana_t, grafana_log_t, grafana_log_t)
manage_files_pattern(grafana_t, grafana_log_t, grafana_log_t)
logging_log_filetrans(grafana_t, grafana_log_t, { dir file })

manage_dirs_pattern(grafana_t, grafana_var_run_t, grafana_var_run_t)
manage_files_pattern(grafana_t, grafana_var_run_t, grafana_var_run_t)
files_pid_filetrans(grafana_t, grafana_var_run_t, { dir file })

manage_dirs_pattern(grafana_t, grafana_var_lib_t, grafana_var_lib_t)
manage_files_pattern(grafana_t, grafana_var_lib_t, grafana_var_lib_t)
manage_lnk_files_pattern(grafana_t, grafana_var_lib_t, grafana_var_lib_t)
files_var_lib_filetrans(grafana_t, grafana_var_lib_t, { dir file })


corenet_tcp_connect_http_port(grafana_t)
corenet_tcp_bind_generic_node(grafana_t)

kernel_dgram_send(grafana_t)
kernel_read_net_sysctls(grafana_t)
kernel_read_system_state(grafana_t)

auth_read_passwd(grafana_t)

dev_read_sysfs(grafana_t)

sysnet_read_config(grafana_t)

logging_send_syslog_msg(grafana_t)

miscfiles_read_generic_certs(grafana_t)

tunable_policy(`grafana_can_reverse_proxy',`
	gen_require(`
		type httpd_t;
	')

	connect_grafana_port(httpd_t) # Reverse proxy support
	corenet_tcp_connect_http_port(grafana_t)
')

tunable_policy(`grafana_can_tcp_connect_elasticsearch_port',` # Elasticsearch default tcp port 9200
	corenet_tcp_connect_wap_wsp_port(grafana_t)
')

tunable_policy(`grafana_can_tcp_connect_mysql_port',` # Mysql default tcp port 3306
	corenet_tcp_connect_mysqld_port(grafana_t)
')

tunable_policy(`grafana_can_tcp_connect_postgresql_port',` # Postgresql default tcp port 5432
	corenet_tcp_connect_postgresql_port(grafana_t)
')

tunable_policy(`grafana_can_tcp_connect_prometheus_port',` # Prometheus default tcp port 9090
	corenet_tcp_connect_websm_port(grafana_t)
')

optional_policy(`
    systemd_private_tmp(grafana_tmp_t)
')