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policy_module(tor, 1.16.0)

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

## <desc>
##	<p>
##	Determine whether tor can bind
##	tcp sockets to all unreserved ports.
##	</p>
## </desc>
gen_tunable(tor_bind_all_unreserved_ports, false)

type tor_t;
type tor_exec_t;
init_daemon_domain(tor_t, tor_exec_t)

type tor_etc_t;
files_config_file(tor_etc_t)

type tor_initrc_exec_t;
init_script_file(tor_initrc_exec_t)

type tor_unit_t;
init_unit_file(tor_unit_t)

type tor_var_lib_t;
files_type(tor_var_lib_t)

type tor_var_log_t;
logging_log_file(tor_var_log_t)

type tor_var_run_t;
files_pid_file(tor_var_run_t)
init_daemon_pid_file(tor_var_run_t, dir, "tor")

########################################
#
# Local policy
#

allow tor_t self:capability { chown dac_override dac_read_search fowner fsetid setgid setuid sys_tty_config };
# net_admin is for SO_SNDBUFFORCE
dontaudit tor_t self:capability net_admin;
allow tor_t self:process signal;
allow tor_t self:fifo_file rw_fifo_file_perms;
allow tor_t self:unix_stream_socket { accept listen };
allow tor_t self:tcp_socket { accept listen };

allow tor_t tor_etc_t:dir list_dir_perms;
allow tor_t tor_etc_t:file read_file_perms;
allow tor_t tor_etc_t:lnk_file read_lnk_file_perms;

manage_dirs_pattern(tor_t, tor_var_lib_t, tor_var_lib_t)
manage_files_pattern(tor_t, tor_var_lib_t, tor_var_lib_t)
allow tor_t tor_var_lib_t:file map;
manage_sock_files_pattern(tor_t, tor_var_lib_t, tor_var_lib_t)
files_var_lib_filetrans(tor_t, tor_var_lib_t, dir)

allow tor_t tor_var_log_t:dir setattr_dir_perms;
append_files_pattern(tor_t, tor_var_log_t, tor_var_log_t)
create_files_pattern(tor_t, tor_var_log_t, tor_var_log_t)
setattr_files_pattern(tor_t, tor_var_log_t, tor_var_log_t)
manage_sock_files_pattern(tor_t, tor_var_log_t, tor_var_log_t)
logging_log_filetrans(tor_t, tor_var_log_t, { sock_file file dir })

manage_dirs_pattern(tor_t, tor_var_run_t, tor_var_run_t)
manage_files_pattern(tor_t, tor_var_run_t, tor_var_run_t)
manage_sock_files_pattern(tor_t, tor_var_run_t, tor_var_run_t)
files_pid_filetrans(tor_t, tor_var_run_t, { dir file sock_file })

kernel_read_kernel_sysctls(tor_t)
kernel_read_net_sysctls(tor_t)
kernel_read_system_state(tor_t)

corenet_all_recvfrom_unlabeled(tor_t)
corenet_all_recvfrom_netlabel(tor_t)
corenet_tcp_sendrecv_generic_if(tor_t)
corenet_udp_sendrecv_generic_if(tor_t)
corenet_tcp_sendrecv_generic_node(tor_t)
corenet_udp_sendrecv_generic_node(tor_t)
corenet_tcp_bind_generic_node(tor_t)
corenet_udp_bind_generic_node(tor_t)

corenet_sendrecv_dns_server_packets(tor_t)
corenet_udp_bind_dns_port(tor_t)
corenet_udp_sendrecv_dns_port(tor_t)

corenet_sendrecv_tor_server_packets(tor_t)
corenet_tcp_bind_tor_port(tor_t)
corenet_tcp_sendrecv_tor_port(tor_t)

corenet_sendrecv_all_client_packets(tor_t)
corenet_tcp_connect_all_ports(tor_t)
corenet_tcp_connect_all_reserved_ports(tor_t)
corenet_tcp_sendrecv_all_ports(tor_t)
corenet_tcp_sendrecv_all_reserved_ports(tor_t)

dev_read_sysfs(tor_t)
dev_read_rand(tor_t)
dev_read_urand(tor_t)

domain_use_interactive_fds(tor_t)

files_read_etc_runtime_files(tor_t)
files_read_usr_files(tor_t)

fs_search_tmpfs(tor_t)
# for log symlink on a tmpfs filesystem systemd creates for it
fs_read_tmpfs_symlinks(tor_t)

auth_use_nsswitch(tor_t)

logging_send_syslog_msg(tor_t)

miscfiles_read_generic_certs(tor_t)
miscfiles_read_localization(tor_t)

tunable_policy(`tor_bind_all_unreserved_ports',`
	corenet_sendrecv_all_server_packets(tor_t)
	corenet_tcp_bind_all_unreserved_ports(tor_t)
')

optional_policy(`
	seutil_sigchld_newrole(tor_t)
')