selinux-policy/refpolicy/policy/modules/services/inetd.te

policy_module(inetd,1.0)

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

type inetd_t; # ifdef(`unlimitedInetd', `,admin, etc_writer, fs_domain, auth_write, privmem')
type inetd_exec_t;
init_daemon_domain(inetd_t,inetd_exec_t)

type inetd_log_t;
logging_log_file(inetd_log_t)

type inetd_tmp_t;
files_tmp_file(inetd_tmp_t)

type inetd_var_run_t;
files_pid_file(inetd_var_run_t)

type inetd_child_t; #, nscd_client_domain;
type inetd_child_exec_t;
inetd_service_domain(inetd_child_t,inetd_child_exec_t)
role system_r types inetd_child_t;

type inetd_child_tmp_t;
files_tmp_file(inetd_child_tmp_t)

type inetd_child_var_run_t;
files_pid_file(inetd_child_var_run_t)

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

allow inetd_t self:capability { setuid setgid };
dontaudit inetd_t self:capability sys_tty_config;
allow inetd_t self:process setsched;
allow inetd_t self:fifo_file rw_file_perms;
allow inetd_t self:tcp_socket create_stream_socket_perms;
allow inetd_t self:udp_socket { connect connected_socket_perms };

allow inetd_t inetd_log_t:file create_file_perms;
logging_create_log(inetd_t,inetd_log_t)

allow inetd_t inetd_tmp_t:dir create_dir_perms;
allow inetd_t inetd_tmp_t:file create_file_perms;
files_create_tmp_files(inetd_t, inetd_tmp_t, { file dir })

allow inetd_t inetd_var_run_t:file create_file_perms;
files_create_pid(inetd_t,inetd_var_run_t)

kernel_read_kernel_sysctl(inetd_t)

# networking:
corenet_tcp_sendrecv_all_if(inetd_t)
corenet_udp_sendrecv_all_if(inetd_t)
corenet_raw_sendrecv_all_if(inetd_t)
corenet_tcp_sendrecv_all_nodes(inetd_t)
corenet_udp_sendrecv_all_nodes(inetd_t)
corenet_raw_sendrecv_all_nodes(inetd_t)
corenet_tcp_sendrecv_all_ports(inetd_t)
corenet_udp_sendrecv_all_ports(inetd_t)
corenet_tcp_bind_all_nodes(inetd_t)
corenet_udp_bind_all_nodes(inetd_t)

# listen on service ports:
#corenet_udp_bind_comsat_port(inetd_t)
corenet_tcp_bind_dbskkd_port(inetd_t)
corenet_udp_bind_dbskkd_port(inetd_t)
corenet_udp_bind_ftp_port(inetd_t)
corenet_tcp_bind_inetd_child_port(inetd_t)
corenet_tcp_bind_inetd_child_port(inetd_t)
corenet_udp_bind_ktalkd_port(inetd_t)
corenet_udp_bind_rsh_port(inetd_t)
corenet_tcp_bind_rsync_port(inetd_t)
corenet_udp_bind_rsync_port(inetd_t)
#corenet_tcp_bind_stunnel_port(inetd_t)
corenet_tcp_bind_swat_port(inetd_t)
corenet_udp_bind_swat_port(inetd_t)

dev_read_sysfs(inetd_t)

fs_getattr_all_fs(inetd_t)
fs_search_auto_mountpoints(inetd_t)

term_dontaudit_use_console(inetd_t)

# Run other daemons in the inetd_child_t domain.
corecmd_search_bin(inetd_t)
corecmd_read_sbin_symlink(inetd_t)

domain_use_wide_inherit_fd(inetd_t)

files_read_generic_etc_files(inetd_t)

init_use_fd(inetd_t)
init_use_script_pty(inetd_t)

libs_use_ld_so(inetd_t)
libs_use_shared_libs(inetd_t)

logging_send_syslog_msg(inetd_t)

miscfiles_read_localization(inetd_t)

sysnet_read_config(inetd_t)

userdom_dontaudit_use_unpriv_user_fd(inetd_t)

ifdef(`targeted_policy', `
	term_dontaudit_use_unallocated_tty(inetd_t)
	term_dontaudit_use_generic_pty(inetd_t)
	files_dontaudit_read_root_file(inetd_t)
')

optional_policy(`mount.te',`
	mount_send_nfs_client_request(inetd_t)
')

optional_policy(`selinux.te',`
	seutil_newrole_sigchld(inetd_t)
')

optional_policy(`udev.te', `
	udev_read_db(inetd_t)
')

ifdef(`TODO',`
allow inetd_t proc_t:dir r_dir_perms;
allow inetd_t proc_t:lnk_file read;
dontaudit inetd_t sysadm_home_dir_t:dir search;

optional_policy(`rhgb.te',`
	rhgb_domain(inetd_t)
')

# allow any domain to connect to inetd
can_tcp_connect(userdomain, inetd_t)

# Bind to the telnet, ftp, rlogin and rsh ports.
ifdef(`talk.te', `
allow inetd_t talk_port_t:tcp_socket name_bind;
allow inetd_t ntalk_port_t:tcp_socket name_bind;
')

# Communicate with the portmapper.
ifdef(`portmap.te', `can_udp_send(inetd_t, portmap_t)')

ifdef(`unconfined.te', `
domain_auto_trans(inetd_t, unconfined_exec_t, unconfined_t)
')

ifdef(`unlimitedInetd', `
unconfined_domain(inetd_t) 
')

') dnl TODO

########################################
#
# inetd child local_policy
#

allow inetd_child_t self:process signal_perms;
allow inetd_child_t self:fifo_file rw_file_perms;
allow inetd_child_t self:tcp_socket { listen accept connected_socket_perms };

# for identd
# cjp: this should probably only be inetd_child rules?
allow inetd_child_t self:netlink_tcpdiag_socket r_netlink_socket_perms;
allow inetd_child_t self:capability { setuid setgid };
allow inetd_child_t self:dir search;
allow inetd_child_t self:{ lnk_file file } { getattr read };
#allow inetd_child_t home_root_t:dir search;
#can_kerberos(inetd_child_t)

allow inetd_child_t inetd_child_tmp_t:dir create_dir_perms;
allow inetd_child_t inetd_child_tmp_t:file create_file_perms;
files_create_tmp_files(inetd_child_t, inetd_child_tmp_t, { file dir })

allow inetd_child_t inetd_child_var_run_t:file create_file_perms;
files_create_pid(inetd_child_t,inetd_child_var_run_t)

kernel_read_kernel_sysctl(inetd_child_t)
kernel_read_system_state(inetd_child_t)
kernel_read_network_state(inetd_child_t)

corenet_tcp_sendrecv_all_if(inetd_child_t)
corenet_raw_sendrecv_all_if(inetd_child_t)
corenet_tcp_sendrecv_all_nodes(inetd_child_t)
corenet_raw_sendrecv_all_nodes(inetd_child_t)
corenet_tcp_bind_all_nodes(inetd_child_t)
corenet_tcp_sendrecv_all_ports(inetd_child_t)

dev_read_urand(inetd_child_t)

fs_getattr_xattr_fs(inetd_child_t)

files_read_generic_etc_files(inetd_child_t)

libs_use_ld_so(inetd_child_t)
libs_use_shared_libs(inetd_child_t)

logging_send_syslog_msg(inetd_child_t)

miscfiles_read_localization(inetd_child_t)

sysnet_read_config(inetd_child_t)

tunable_policy(`run_ssh_inetd',`
	corenet_tcp_bind_ssh_port(inetd_t)
')

optional_policy(`nis.te',`
	nis_use_ypbind(inetd_child_t)
')