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

policy_module(nscd,1.0)

gen_require(`
	class nscd all_nscd_perms;
')

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

# nscd is both the client program and the daemon.
type nscd_t;
type nscd_exec_t;
init_daemon_domain(nscd_t,nscd_exec_t)

type nscd_log_t;
logging_log_file(nscd_log_t)

type nscd_var_run_t;
files_pid_file(nscd_var_run_t)

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

allow nscd_t self:capability { kill setgid setuid };
dontaudit nscd_t self:capability sys_tty_config;
allow nscd_t self:process { getattr setsched };
allow nscd_t self:fifo_file { read write };
allow nscd_t self:unix_stream_socket create_stream_socket_perms;
allow nscd_t self:unix_dgram_socket create_socket_perms;
allow nscd_t self:netlink_selinux_socket create_socket_perms;
allow nscd_t self:netlink_route_socket r_netlink_socket_perms;
allow nscd_t self:netlink_audit_socket { create_netlink_socket_perms nlmsg_relay };
allow nscd_t self:tcp_socket create_socket_perms;
allow nscd_t self:udp_socket create_socket_perms;

# For client program operation, invoked from sysadm_t.
# Transition occurs to nscd_t due to direct_sysadm_daemon. 
allow nscd_t self:nscd { admin getstat };

allow nscd_t nscd_log_t:file create_file_perms;
logging_create_log(nscd_t,nscd_log_t)

allow nscd_t nscd_var_run_t:file create_file_perms;
allow nscd_t nscd_var_run_t:sock_file create_file_perms;
files_create_pid(nscd_t,nscd_var_run_t,{ file sock_file })

kernel_read_kernel_sysctl(nscd_t)
kernel_list_proc(nscd_t)
kernel_read_proc_symlinks(nscd_t)

dev_read_sysfs(nscd_t)
dev_read_rand(nscd_t)
dev_read_urand(nscd_t)

fs_getattr_all_fs(nscd_t)
fs_search_auto_mountpoints(nscd_t)

term_dontaudit_use_console(nscd_t)

# for when /etc/passwd has just been updated and has the wrong type
auth_getattr_shadow(nscd_t)

corenet_tcp_sendrecv_all_if(nscd_t)
corenet_udp_sendrecv_all_if(nscd_t)
corenet_raw_sendrecv_all_if(nscd_t)
corenet_tcp_sendrecv_all_nodes(nscd_t)
corenet_udp_sendrecv_all_nodes(nscd_t)
corenet_raw_sendrecv_all_nodes(nscd_t)
corenet_tcp_sendrecv_all_ports(nscd_t)
corenet_udp_sendrecv_all_ports(nscd_t)
corenet_tcp_bind_all_nodes(nscd_t)
corenet_udp_bind_all_nodes(nscd_t)
corenet_tcp_connect_all_ports(nscd_t)
corenet_use_tun_tap_device(nscd_t)

selinux_get_fs_mount(nscd_t)
selinux_validate_context(nscd_t)
selinux_compute_access_vector(nscd_t)
selinux_compute_create_context(nscd_t)
selinux_compute_relabel_context(nscd_t)
selinux_compute_user_contexts(nscd_t)
domain_use_wide_inherit_fd(nscd_t)

files_read_etc_files(nscd_t)

init_use_fd(nscd_t)
init_use_script_pty(nscd_t)

libs_use_ld_so(nscd_t)
libs_use_shared_libs(nscd_t)

logging_send_syslog_msg(nscd_t)

miscfiles_read_localization(nscd_t)

seutil_read_config(nscd_t)
seutil_read_default_contexts(nscd_t)
seutil_sigchld_newrole(nscd_t)

sysnet_read_config(nscd_t)

userdom_dontaudit_use_unpriv_user_fd(nscd_t)
userdom_dontaudit_search_sysadm_home_dir(nscd_t)

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

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

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

ifdef(`TODO',`
optional_policy(`winbind.te', `
	# Handle winbind for samba, Might only be needed for targeted policy

	allow nscd_t winbind_var_run_t:sock_file { read write getattr };
	can_unix_connect(nscd_t, winbind_t)
	allow nscd_t samba_var_t:dir search;
	allow nscd_t winbind_var_run_t:dir { getattr search };
')
optional_policy(`rhgb.te',`
	rhgb_domain(nscd_t)
')
r_dir_file(nscd_t, cert_t)
allow nscd_t tmp_t:dir { search getattr };
allow nscd_t tmp_t:lnk_file read;
') dnl end TODO