selinux-policy/policy/modules/services/dcc.te

policy_module(dcc, 1.7.1)

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

type cdcc_t;
type cdcc_exec_t;
application_domain(cdcc_t, cdcc_exec_t)
role system_r types cdcc_t;

type cdcc_tmp_t;
files_tmp_file(cdcc_tmp_t)

type dcc_client_t;
type dcc_client_exec_t;
application_domain(dcc_client_t, dcc_client_exec_t)
role system_r types dcc_client_t;

type dcc_client_map_t;
files_type(dcc_client_map_t)

type dcc_client_tmp_t;
files_tmp_file(dcc_client_tmp_t)

type dcc_dbclean_t;
type dcc_dbclean_exec_t;
application_domain(dcc_dbclean_t, dcc_dbclean_exec_t)
role system_r types dcc_dbclean_t;

type dcc_dbclean_tmp_t;
files_tmp_file(dcc_dbclean_tmp_t)

type dcc_var_t;
files_type(dcc_var_t)

type dcc_var_run_t;
files_type(dcc_var_run_t)

type dccd_t;
type dccd_exec_t;
init_daemon_domain(dccd_t, dccd_exec_t)

type dccd_tmp_t;
files_tmp_file(dccd_tmp_t)

type dccd_var_run_t;
files_pid_file(dccd_var_run_t)

type dccifd_t;
type dccifd_exec_t;
init_daemon_domain(dccifd_t, dccifd_exec_t)

type dccifd_tmp_t;
files_tmp_file(dccifd_tmp_t)

type dccifd_var_run_t;
files_pid_file(dccifd_var_run_t)

type dccm_t;
type dccm_exec_t;
init_daemon_domain(dccm_t, dccm_exec_t)

type dccm_tmp_t;
files_tmp_file(dccm_tmp_t)

type dccm_var_run_t;
files_pid_file(dccm_var_run_t)

# NOTE: DCC has writeable files in /etc/dcc that should probably be in
# /var/lib/dcc.  For now this policy supports both directories being
# writable.

# cjp: dccifd and dccm should be merged, as
# they have the same rules.

########################################
#
# dcc daemon controller local policy
#

allow cdcc_t self:capability setuid;
allow cdcc_t self:unix_dgram_socket create_socket_perms;
allow cdcc_t self:udp_socket create_socket_perms;

manage_dirs_pattern(cdcc_t, cdcc_tmp_t, cdcc_tmp_t)
manage_files_pattern(cdcc_t, cdcc_tmp_t, cdcc_tmp_t)
files_tmp_filetrans(cdcc_t, cdcc_tmp_t, { file dir })

allow cdcc_t dcc_client_map_t:file rw_file_perms;

# Access files in /var/dcc. The map file can be updated
allow cdcc_t dcc_var_t:dir list_dir_perms;
read_files_pattern(cdcc_t, dcc_var_t, dcc_var_t)
read_lnk_files_pattern(cdcc_t, dcc_var_t, dcc_var_t)

corenet_all_recvfrom_unlabeled(cdcc_t)
corenet_all_recvfrom_netlabel(cdcc_t)
corenet_udp_sendrecv_generic_if(cdcc_t)
corenet_udp_sendrecv_generic_node(cdcc_t)
corenet_udp_sendrecv_all_ports(cdcc_t)

files_read_etc_files(cdcc_t)
files_read_etc_runtime_files(cdcc_t)

auth_use_nsswitch(cdcc_t)

logging_send_syslog_msg(cdcc_t)

miscfiles_read_localization(cdcc_t)

userdom_use_user_terminals(cdcc_t)

########################################
#
# dcc procmail interface local policy
#

allow dcc_client_t self:capability { setuid setgid };
allow dcc_client_t self:unix_dgram_socket create_socket_perms;
allow dcc_client_t self:udp_socket create_socket_perms;

allow dcc_client_t dcc_client_map_t:file rw_file_perms;

manage_dirs_pattern(dcc_client_t, dcc_client_tmp_t, dcc_client_tmp_t)
manage_files_pattern(dcc_client_t, dcc_client_tmp_t, dcc_client_tmp_t)
files_tmp_filetrans(dcc_client_t, dcc_client_tmp_t, { file dir })

# Access files in /var/dcc. The map file can be updated
allow dcc_client_t dcc_var_t:dir list_dir_perms;
read_files_pattern(dcc_client_t, dcc_var_t, dcc_var_t)
read_lnk_files_pattern(dcc_client_t, dcc_var_t, dcc_var_t)

kernel_read_system_state(dcc_client_t)

corenet_all_recvfrom_unlabeled(dcc_client_t)
corenet_all_recvfrom_netlabel(dcc_client_t)
corenet_udp_sendrecv_generic_if(dcc_client_t)
corenet_udp_sendrecv_generic_node(dcc_client_t)
corenet_udp_sendrecv_all_ports(dcc_client_t)

files_read_etc_files(dcc_client_t)
files_read_etc_runtime_files(dcc_client_t)

auth_use_nsswitch(dcc_client_t)

logging_send_syslog_msg(dcc_client_t)

miscfiles_read_localization(dcc_client_t)

userdom_use_user_terminals(dcc_client_t)

optional_policy(`
	spamassassin_read_spamd_tmp_files(dcc_client_t)
')

########################################
#
# Database cleanup tool local policy
#

allow dcc_dbclean_t self:unix_dgram_socket create_socket_perms;
allow dcc_dbclean_t self:udp_socket create_socket_perms;

allow dcc_dbclean_t dcc_client_map_t:file rw_file_perms;

manage_dirs_pattern(dcc_dbclean_t, dcc_dbclean_tmp_t, dcc_dbclean_tmp_t)
manage_files_pattern(dcc_dbclean_t, dcc_dbclean_tmp_t, dcc_dbclean_tmp_t)
files_tmp_filetrans(dcc_dbclean_t, dcc_dbclean_tmp_t, { file dir })

manage_dirs_pattern(dcc_dbclean_t, dcc_var_t, dcc_var_t)
manage_files_pattern(dcc_dbclean_t, dcc_var_t, dcc_var_t)
manage_lnk_files_pattern(dcc_dbclean_t, dcc_var_t, dcc_var_t)

kernel_read_system_state(dcc_dbclean_t)

corenet_all_recvfrom_unlabeled(dcc_dbclean_t)
corenet_all_recvfrom_netlabel(dcc_dbclean_t)
corenet_udp_sendrecv_generic_if(dcc_dbclean_t)
corenet_udp_sendrecv_generic_node(dcc_dbclean_t)
corenet_udp_sendrecv_all_ports(dcc_dbclean_t)

files_read_etc_files(dcc_dbclean_t)
files_read_etc_runtime_files(dcc_dbclean_t)

auth_use_nsswitch(dcc_dbclean_t)

logging_send_syslog_msg(dcc_dbclean_t)

miscfiles_read_localization(dcc_dbclean_t)

userdom_use_user_terminals(dcc_dbclean_t)

########################################
#
# Server daemon local policy
#

allow dccd_t self:capability net_admin;
dontaudit dccd_t self:capability sys_tty_config;
allow dccd_t self:process signal_perms;
allow dccd_t self:unix_stream_socket create_socket_perms;
allow dccd_t self:netlink_route_socket { bind create getattr nlmsg_read read write };
allow dccd_t self:udp_socket create_socket_perms;

allow dccd_t dcc_client_map_t:file rw_file_perms;

# Access files in /var/dcc. The map file can be updated
allow dccd_t dcc_var_t:dir list_dir_perms;
read_files_pattern(dccd_t, dcc_var_t, dcc_var_t)
read_lnk_files_pattern(dccd_t, dcc_var_t, dcc_var_t)

# Runs the dbclean program
domtrans_pattern(dccd_t, dcc_dbclean_exec_t, dcc_dbclean_t)
corecmd_search_bin(dccd_t)

# Updating dcc_db, flod, ...
manage_dirs_pattern(dccd_t, dcc_var_t, dcc_var_t)
manage_files_pattern(dccd_t, dcc_var_t, dcc_var_t)
manage_lnk_files_pattern(dccd_t, dcc_var_t, dcc_var_t)

manage_dirs_pattern(dccd_t, dccd_tmp_t, dccd_tmp_t)
manage_files_pattern(dccd_t, dccd_tmp_t, dccd_tmp_t)
files_tmp_filetrans(dccd_t, dccd_tmp_t, { file dir })

manage_files_pattern(dccd_t, dccd_var_run_t, dccd_var_run_t)
files_pid_filetrans(dccd_t, dccd_var_run_t, file)

kernel_read_system_state(dccd_t)
kernel_read_kernel_sysctls(dccd_t)

corenet_all_recvfrom_unlabeled(dccd_t)
corenet_all_recvfrom_netlabel(dccd_t)
corenet_udp_sendrecv_generic_if(dccd_t)
corenet_udp_sendrecv_generic_node(dccd_t)
corenet_udp_sendrecv_all_ports(dccd_t)
corenet_udp_bind_generic_node(dccd_t)
corenet_udp_bind_dcc_port(dccd_t)
corenet_sendrecv_dcc_server_packets(dccd_t)

dev_read_sysfs(dccd_t)

domain_use_interactive_fds(dccd_t)

files_read_etc_files(dccd_t)
files_read_etc_runtime_files(dccd_t)

fs_getattr_all_fs(dccd_t)
fs_search_auto_mountpoints(dccd_t)

auth_use_nsswitch(dccd_t)

logging_send_syslog_msg(dccd_t)

miscfiles_read_localization(dccd_t)

userdom_dontaudit_use_unpriv_user_fds(dccd_t)
userdom_dontaudit_search_user_home_dirs(dccd_t)

optional_policy(`
	seutil_sigchld_newrole(dccd_t)
')

optional_policy(`
	udev_read_db(dccd_t)
')

########################################
#
# Spamassassin and general MTA persistent client local policy
#

dontaudit dccifd_t self:capability sys_tty_config;
allow dccifd_t self:process signal_perms;
allow dccifd_t self:unix_stream_socket create_stream_socket_perms;
allow dccifd_t self:unix_dgram_socket create_socket_perms;
allow dccifd_t self:udp_socket create_socket_perms;

allow dccifd_t dcc_client_map_t:file rw_file_perms;

# Updating dcc_db, flod, ...
manage_dirs_pattern(dccifd_t, dcc_var_t, dcc_var_t)
manage_files_pattern(dccifd_t, dcc_var_t, dcc_var_t)
manage_lnk_files_pattern(dccifd_t, dcc_var_t, dcc_var_t)
manage_fifo_files_pattern(dccifd_t, dcc_var_t, dcc_var_t)
manage_sock_files_pattern(dccifd_t, dcc_var_t, dcc_var_t)

manage_dirs_pattern(dccifd_t, dccifd_tmp_t, dccifd_tmp_t)
manage_files_pattern(dccifd_t, dccifd_tmp_t, dccifd_tmp_t)
files_tmp_filetrans(dccifd_t, dccifd_tmp_t, { file dir })

manage_files_pattern(dccifd_t, dccifd_var_run_t, dccifd_var_run_t)
manage_sock_files_pattern(dccifd_t, dccifd_var_run_t, dccifd_var_run_t)
filetrans_pattern(dccifd_t, dcc_var_t, dccifd_var_run_t, { file sock_file })
files_pid_filetrans(dccifd_t, dccifd_var_run_t, file)

kernel_read_system_state(dccifd_t)
kernel_read_kernel_sysctls(dccifd_t)

corenet_all_recvfrom_unlabeled(dccifd_t)
corenet_all_recvfrom_netlabel(dccifd_t)
corenet_udp_sendrecv_generic_if(dccifd_t)
corenet_udp_sendrecv_generic_node(dccifd_t)
corenet_udp_sendrecv_all_ports(dccifd_t)

dev_read_sysfs(dccifd_t)

domain_use_interactive_fds(dccifd_t)

files_read_etc_files(dccifd_t)
files_read_etc_runtime_files(dccifd_t)

fs_getattr_all_fs(dccifd_t)
fs_search_auto_mountpoints(dccifd_t)

auth_use_nsswitch(dccifd_t)

logging_send_syslog_msg(dccifd_t)

miscfiles_read_localization(dccifd_t)

userdom_dontaudit_use_unpriv_user_fds(dccifd_t)
userdom_dontaudit_search_user_home_dirs(dccifd_t)

optional_policy(`
	seutil_sigchld_newrole(dccifd_t)
')

optional_policy(`
	udev_read_db(dccifd_t)
')

########################################
#
# sendmail milter client local policy
#

dontaudit dccm_t self:capability sys_tty_config;
allow dccm_t self:process signal_perms;
allow dccm_t self:unix_stream_socket create_stream_socket_perms;
allow dccm_t self:unix_dgram_socket create_socket_perms;
allow dccm_t self:udp_socket create_socket_perms;

allow dccm_t dcc_client_map_t:file rw_file_perms;

manage_dirs_pattern(dccm_t, dcc_var_t, dcc_var_t)
manage_files_pattern(dccm_t, dcc_var_t, dcc_var_t)
manage_lnk_files_pattern(dccm_t, dcc_var_t, dcc_var_t)
manage_fifo_files_pattern(dccm_t, dcc_var_t, dcc_var_t)
manage_sock_files_pattern(dccm_t, dcc_var_t, dcc_var_t)

manage_dirs_pattern(dccm_t, dccm_tmp_t, dccm_tmp_t)
manage_files_pattern(dccm_t, dccm_tmp_t, dccm_tmp_t)
files_tmp_filetrans(dccm_t, dccm_tmp_t, { file dir })

manage_files_pattern(dccm_t, dccm_var_run_t, dccm_var_run_t)
manage_sock_files_pattern(dccm_t, dccm_var_run_t, dccm_var_run_t)
filetrans_pattern(dccm_t, dcc_var_run_t, dccm_var_run_t, { file sock_file })
files_pid_filetrans(dccm_t, dccm_var_run_t, file)

kernel_read_system_state(dccm_t)
kernel_read_kernel_sysctls(dccm_t)

corenet_all_recvfrom_unlabeled(dccm_t)
corenet_all_recvfrom_netlabel(dccm_t)
corenet_udp_sendrecv_generic_if(dccm_t)
corenet_udp_sendrecv_generic_node(dccm_t)
corenet_udp_sendrecv_all_ports(dccm_t)

dev_read_sysfs(dccm_t)

domain_use_interactive_fds(dccm_t)

files_read_etc_files(dccm_t)
files_read_etc_runtime_files(dccm_t)

fs_getattr_all_fs(dccm_t)
fs_search_auto_mountpoints(dccm_t)

auth_use_nsswitch(dccm_t)

logging_send_syslog_msg(dccm_t)

miscfiles_read_localization(dccm_t)

userdom_dontaudit_use_unpriv_user_fds(dccm_t)
userdom_dontaudit_search_user_home_dirs(dccm_t)

optional_policy(`
	seutil_sigchld_newrole(dccm_t)
')

optional_policy(`
	udev_read_db(dccm_t)
')