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

policy_module(samba,1.0)

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

type nmbd_t;
type nmbd_exec_t;
init_daemon_domain(nmbd_t,nmbd_exec_t)

type nmbd_var_run_t;
files_pid_file(nmbd_var_run_t)

type samba_etc_t; #, usercanread;
files_type(samba_etc_t)

type samba_log_t, logfile;
files_type(samba_log_t)

type samba_net_t;
domain_type(samba_net_t)

type samba_net_exec_t;
domain_entry_file(samba_net_t,samba_net_exec_t)

type samba_net_tmp_t;
files_tmp_file(samba_net_tmp_t)

type samba_secrets_t;
files_type(samba_secrets_t)

type samba_share_t; #, customizable;
files_type(samba_share_t)

type samba_var_t;
files_type(samba_var_t)

type smbd_t;
type smbd_exec_t;
init_daemon_domain(smbd_t,smbd_exec_t)

type smbd_tmp_t;
files_tmp_file(smbd_tmp_t)

type smbd_var_run_t;
files_pid_file(smbd_var_run_t)

type smbmount_t;
domain_type(smbmount_t)

type smbmount_exec_t;
domain_entry_file(smbmount_t,smbmount_exec_t)

########################################
#
# Samba net local policy
#

allow samba_net_t self:unix_dgram_socket create_socket_perms;
allow samba_net_t self:unix_stream_socket create_stream_socket_perms;
allow samba_net_t self:udp_socket create_socket_perms;
allow samba_net_t self:tcp_socket create_socket_perms;

allow samba_net_t samba_etc_t:file r_file_perms;

allow samba_net_t samba_secrets_t:file create_file_perms;
allow samba_net_t samba_etc_t:dir rw_dir_perms;
type_transition samba_net_t samba_etc_t:file samba_secrets_t;

allow samba_net_t samba_net_tmp_t:dir create_dir_perms;
allow samba_net_t samba_net_tmp_t:file create_file_perms;
files_create_tmp_files(samba_net_t, samba_net_tmp_t, { file dir })

allow samba_net_t samba_var_t:dir rw_dir_perms;
allow samba_net_t samba_var_t:lnk_file create_lnk_perms;
allow samba_net_t samba_var_t:file create_lnk_perms;

kernel_read_proc_symlinks(samba_net_t)

corenet_tcp_sendrecv_all_if(samba_net_t)
corenet_udp_sendrecv_all_if(samba_net_t)
corenet_raw_sendrecv_all_if(samba_net_t)
corenet_tcp_sendrecv_all_nodes(samba_net_t)
corenet_udp_sendrecv_all_nodes(samba_net_t)
corenet_raw_sendrecv_all_nodes(samba_net_t)
corenet_tcp_sendrecv_all_ports(samba_net_t)
corenet_udp_sendrecv_all_ports(samba_net_t)
corenet_tcp_bind_all_nodes(samba_net_t)
corenet_udp_bind_all_nodes(samba_net_t)
corenet_tcp_connect_smbd_port(samba_net_t)

dev_read_urand(samba_net_t)

domain_use_wide_inherit_fd(samba_net_t)

files_read_etc_files(samba_net_t)

libs_use_ld_so(samba_net_t)
libs_use_shared_libs(samba_net_t)

miscfiles_read_localization(samba_net_t) 

sysnet_read_config(samba_net_t)

userdom_dontaudit_search_sysadm_home_dir(samba_net_t)

optional_policy(`kerberos.te',`
	kerberos_use(samba_net_t)
')

optional_policy(`ldap.te',`
	allow samba_net_t self:tcp_socket create_socket_perms;
	corenet_tcp_sendrecv_all_if(samba_net_t)
	corenet_raw_sendrecv_all_if(samba_net_t)
	corenet_tcp_sendrecv_all_nodes(samba_net_t)
	corenet_raw_sendrecv_all_nodes(samba_net_t)
	corenet_tcp_sendrecv_ldap_port(samba_net_t)
	corenet_tcp_bind_all_nodes(samba_net_t)
	sysnet_read_config(samba_net_t)
')

optional_policy(`nscd.te',`
	nscd_use_socket(samba_net_t)
')

ifdef(`TODO',`
role system_r types samba_net_t;
in_user_role(samba_net_t)
')

########################################
#
# smbd Local policy
#
allow smbd_t self:capability { setgid setuid sys_resource lease dac_override dac_read_search };
dontaudit smbd_t self:capability sys_tty_config;
allow smbd_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
allow smbd_t self:fd use;
allow smbd_t self:fifo_file rw_file_perms;
allow smbd_t self:msg { send receive };
allow smbd_t self:msgq create_msgq_perms;
allow smbd_t self:sem create_sem_perms;
allow smbd_t self:shm create_shm_perms;
allow smbd_t self:sock_file r_file_perms;
allow smbd_t self:tcp_socket create_stream_socket_perms;
allow smbd_t self:udp_socket create_socket_perms;
allow smbd_t self:unix_dgram_socket { create_socket_perms sendto };
allow smbd_t self:unix_stream_socket { create_stream_socket_perms connectto };

allow smbd_t samba_etc_t:dir rw_dir_perms;
allow smbd_t samba_etc_t:file r_file_perms;

allow smbd_t samba_log_t:dir ra_dir_perms;
dontaudit smbd_t samba_log_t:dir remove_name;
allow smbd_t samba_log_t:file { create ra_file_perms };

allow smbd_t samba_secrets_t:dir rw_dir_perms;
allow smbd_t samba_secrets_t:file create_file_perms;
type_transition smbd_t samba_etc_t:file samba_secrets_t;

allow smbd_t samba_share_t:dir create_dir_perms;
allow smbd_t samba_share_t:file create_file_perms;
allow smbd_t samba_share_t:lnk_file create_lnk_perms;

allow smbd_t samba_var_t:dir create_dir_perms;
allow smbd_t samba_var_t:file create_file_perms;
allow smbd_t samba_var_t:lnk_file create_lnk_perms;
allow smbd_t samba_var_t:sock_file create_file_perms;

allow smbd_t smbd_tmp_t:dir create_dir_perms;
allow smbd_t smbd_tmp_t:file create_file_perms;
files_create_tmp_files(smbd_t, smbd_tmp_t, { file dir })

allow smbd_t nmbd_var_run_t:file rw_file_perms;

allow smbd_t smbd_var_run_t:dir create_dir_perms;
allow smbd_t smbd_var_run_t:file create_file_perms;
allow smbd_t smbd_var_run_t:sock_file create_file_perms;
files_create_pid(smbd_t,smbd_var_run_t)

kernel_getattr_core(smbd_t)
kernel_getattr_message_if(smbd_t)
kernel_read_network_state(smbd_t)
kernel_read_kernel_sysctl(smbd_t)
kernel_read_software_raid_state(smbd_t)
kernel_read_system_state(smbd_t)

corenet_tcp_sendrecv_all_if(smbd_t)
corenet_udp_sendrecv_all_if(smbd_t)
corenet_raw_sendrecv_all_if(smbd_t)
corenet_tcp_sendrecv_all_nodes(smbd_t)
corenet_udp_sendrecv_all_nodes(smbd_t)
corenet_raw_sendrecv_all_nodes(smbd_t)
corenet_tcp_sendrecv_all_ports(smbd_t)
corenet_udp_sendrecv_all_ports(smbd_t)
corenet_tcp_bind_all_nodes(smbd_t)
corenet_udp_bind_all_nodes(smbd_t)
corenet_tcp_bind_smbd_port(smbd_t)
corenet_tcp_connect_ipp_port(smbd_t)
corenet_tcp_connect_smbd_port(smbd_t)

dev_read_sysfs(smbd_t)
dev_read_urand(smbd_t)

fs_getattr_all_fs(smbd_t)
fs_search_auto_mountpoints(smbd_t)

term_dontaudit_use_console(smbd_t)

auth_domtrans_chk_passwd(smbd_t)

domain_use_wide_inherit_fd(smbd_t)

files_list_var_lib(smbd_t)
files_read_etc_files(smbd_t)
files_read_etc_runtime_files(smbd_t)
files_read_usr_files(smbd_t)
files_search_spool(smbd_t)

init_use_fd(smbd_t)
init_use_script_pty(smbd_t)

libs_use_ld_so(smbd_t)
libs_use_shared_libs(smbd_t)

logging_search_logs(smbd_t)
logging_send_syslog_msg(smbd_t)

miscfiles_read_localization(smbd_t)

mount_send_nfs_client_request(smbd_t)

sysnet_read_config(smbd_t)

userdom_dontaudit_search_sysadm_home_dir(smbd_t)
userdom_dontaudit_use_unpriv_user_fd(smbd_t)
userdom_use_unpriv_users_fd(smbd_t)

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

optional_policy(`kerberos.te',`
	kerberos_use(smbd_t)
')

optional_policy(`ldap.te',`
	allow smbd_t self:tcp_socket create_socket_perms;
	corenet_tcp_sendrecv_all_if(smbd_t)
	corenet_raw_sendrecv_all_if(smbd_t)
	corenet_tcp_sendrecv_all_nodes(smbd_t)
	corenet_raw_sendrecv_all_nodes(smbd_t)
	corenet_tcp_sendrecv_ldap_port(smbd_t)
	corenet_tcp_bind_all_nodes(smbd_t)
	sysnet_read_config(smbd_t)
')

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

optional_policy(`nscd.te',`
	nscd_use_socket(smbd_t)
')

optional_policy(`selinuxutil.te',`
	seutil_sigchld_newrole(smbd_t)
')

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

ifdef(`TODO',`
optional_policy(`rhgb.te',`
	rhgb_domain(smbd_t)
')
can_winbind(smbd_t)
')

########################################
#
# nmbd Local policy
#
dontaudit nmbd_t self:capability sys_tty_config;
allow nmbd_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
allow nmbd_t self:fd use;
allow nmbd_t self:fifo_file rw_file_perms;
allow nmbd_t self:msg { send receive };
allow nmbd_t self:msgq create_msgq_perms;
allow nmbd_t self:sem create_sem_perms;
allow nmbd_t self:shm create_shm_perms;
allow nmbd_t self:sock_file r_file_perms;
allow nmbd_t self:tcp_socket create_stream_socket_perms;
allow nmbd_t self:udp_socket create_socket_perms;
allow nmbd_t self:unix_dgram_socket { create_socket_perms sendto };
allow nmbd_t self:unix_stream_socket { create_stream_socket_perms connectto };

allow nmbd_t nmbd_var_run_t:file create_file_perms;
files_create_pid(nmbd_t,nmbd_var_run_t)

allow nmbd_t samba_etc_t:dir { search getattr };
allow nmbd_t samba_etc_t:file { getattr read };

allow nmbd_t samba_log_t:dir ra_dir_perms;
allow nmbd_t samba_log_t:file { create ra_file_perms };

allow nmbd_t samba_var_t:dir rw_dir_perms;
allow nmbd_t samba_var_t:file { lock unlink create write setattr read getattr rename };

allow nmbd_t smbd_var_run_t:dir rw_dir_perms;

kernel_getattr_core(nmbd_t)
kernel_getattr_message_if(nmbd_t)
kernel_read_kernel_sysctl(nmbd_t)
kernel_read_network_state(nmbd_t)
kernel_read_software_raid_state(nmbd_t)
kernel_read_system_state(nmbd_t)

corenet_tcp_sendrecv_all_if(nmbd_t)
corenet_raw_sendrecv_all_if(nmbd_t)
corenet_tcp_sendrecv_all_nodes(nmbd_t)
corenet_raw_sendrecv_all_nodes(nmbd_t)
corenet_tcp_sendrecv_all_ports(nmbd_t)
corenet_tcp_bind_all_nodes(nmbd_t)
corenet_udp_bind_nmbd_port(nmbd_t)

dev_read_sysfs(nmbd_t)

fs_getattr_all_fs(nmbd_t)
fs_search_auto_mountpoints(nmbd_t)

term_dontaudit_use_console(nmbd_t)

domain_use_wide_inherit_fd(nmbd_t)

files_read_usr_files(nmbd_t)
files_read_etc_files(nmbd_t)

init_use_fd(nmbd_t)
init_use_script_pty(nmbd_t)

libs_use_ld_so(nmbd_t)
libs_use_shared_libs(nmbd_t)

logging_search_logs(nmbd_t)
logging_send_syslog_msg(nmbd_t)

miscfiles_read_localization(nmbd_t)

sysnet_read_config(nmbd_t)

userdom_dontaudit_search_sysadm_home_dir(nmbd_t)
userdom_dontaudit_use_unpriv_user_fd(nmbd_t)
userdom_use_unpriv_users_fd(nmbd_t)

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

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

optional_policy(`selinuxutil.te',`
	seutil_sigchld_newrole(nmbd_t)
')

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

ifdef(`TODO',`
optional_policy(`rhgb.te',`
	rhgb_domain(nmbd_t)
')
')

########################################
#
# smbmount Local policy
#
allow smbmount_t self:capability { sys_rawio sys_admin dac_override chown }; # FIXME: is all of this really necessary?
allow smbmount_t self:process { fork signal_perms };
allow smbmount_t self:tcp_socket create_stream_socket_perms;
allow smbmount_t self:udp_socket connect;
allow smbmount_t self:unix_dgram_socket create_socket_perms;
allow smbmount_t self:unix_stream_socket create_socket_perms;

allow smbmount_t samba_etc_t:dir r_dir_perms;
allow smbmount_t samba_etc_t:file r_file_perms;

can_exec(smbmount_t, smbmount_exec_t)

allow smbmount_t samba_log_t:dir r_dir_perms; 
allow smbmount_t samba_log_t:file create_file_perms;

allow smbmount_t samba_secrets_t:file create_file_perms;

allow smbmount_t samba_var_t:dir rw_dir_perms;
allow smbmount_t samba_var_t:file create_file_perms;
allow smbmount_t samba_var_t:lnk_file create_lnk_perms;

kernel_read_system_state(smbmount_t)

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

fs_getattr_cifs(smbmount_t)
fs_mount_cifs(smbmount_t)
fs_remount_cifs(smbmount_t)
fs_unmount_cifs(smbmount_t)
fs_list_cifs(smbmount_t)
fs_read_cifs_files(smbmount_t)

storage_raw_read_fixed_disk(smbmount_t)
storage_raw_write_fixed_disk(smbmount_t)

term_list_ptys(smbmount_t)
term_use_controlling_term(smbmount_t)

corecmd_list_bin(smbmount_t)

files_list_mnt(smbmount_t)
files_mounton_mnt(smbmount_t)
files_manage_etc_runtime_files(smbmount_t)
files_read_etc_files(smbmount_t)

miscfiles_read_localization(smbmount_t)

mount_use_fd(smbmount_t)
mount_send_nfs_client_request(smbmount_t)

libs_use_ld_so(smbmount_t)
libs_use_shared_libs(smbmount_t)

locallogin_use_fd(smbmount_t)

logging_search_logs(smbmount_t)

sysnet_read_config(smbmount_t)

userdom_use_all_user_fd(smbmount_t)
userdom_use_sysadm_tty(smbmount_t)

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

optional_policy(`nscd.te',`
	nscd_use_socket(smbmount_t)
')

ifdef(`TODO',`
ifdef(`cups.te', `
	allow smbd_t cupsd_rw_etc_t:file { getattr read };
')
')