path: root/policy/modules/contrib/spamassassin.te

policy_module(spamassassin, 2.5.0)

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

## <desc>
## <p>
## Allow user spamassassin clients to use the network.
## </p>
## </desc>
gen_tunable(spamassassin_can_network, false)

## <desc>
## <p>
## Allow spamd to read/write user home directories.
## </p>
## </desc>
gen_tunable(spamd_enable_home_dirs, true)

type spamassassin_t;
type spamassassin_exec_t;
typealias spamassassin_t alias { user_spamassassin_t staff_spamassassin_t sysadm_spamassassin_t };
typealias spamassassin_t alias { auditadm_spamassassin_t secadm_spamassassin_t };
userdom_user_application_domain(spamassassin_t, spamassassin_exec_t)

type spamassassin_home_t;
typealias spamassassin_home_t alias { user_spamassassin_home_t staff_spamassassin_home_t sysadm_spamassassin_home_t };
typealias spamassassin_home_t alias { auditadm_spamassassin_home_t secadm_spamassassin_home_t };
userdom_user_home_content(spamassassin_home_t)

type spamassassin_tmp_t;
typealias spamassassin_tmp_t alias { user_spamassassin_tmp_t staff_spamassassin_tmp_t sysadm_spamassassin_tmp_t };
typealias spamassassin_tmp_t alias { auditadm_spamassassin_tmp_t secadm_spamassassin_tmp_t };
userdom_user_tmp_file(spamassassin_tmp_t)

type spamc_t;
type spamc_exec_t;
typealias spamc_t alias { user_spamc_t staff_spamc_t sysadm_spamc_t };
typealias spamc_t alias { auditadm_spamc_t secadm_spamc_t };
userdom_user_application_domain(spamc_t, spamc_exec_t)

type spamc_tmp_t;
typealias spamc_tmp_t alias { user_spamc_tmp_t staff_spamc_tmp_t sysadm_spamc_tmp_t };
typealias spamc_tmp_t alias { auditadm_spamc_tmp_t secadm_spamc_tmp_t };
userdom_user_tmp_file(spamc_tmp_t)

type spamd_t;
type spamd_exec_t;
init_daemon_domain(spamd_t, spamd_exec_t)

type spamd_spool_t;
files_type(spamd_spool_t)

type spamd_tmp_t;
files_tmp_file(spamd_tmp_t)

# var/lib files
type spamd_var_lib_t;
files_type(spamd_var_lib_t)

type spamd_var_run_t;
files_pid_file(spamd_var_run_t)

##############################
#
# Standalone program local policy
#

allow spamassassin_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
allow spamassassin_t self:fd use;
allow spamassassin_t self:fifo_file rw_fifo_file_perms;
allow spamassassin_t self:sock_file read_sock_file_perms;
allow spamassassin_t self:unix_dgram_socket create_socket_perms;
allow spamassassin_t self:unix_stream_socket create_stream_socket_perms;
allow spamassassin_t self:unix_dgram_socket sendto;
allow spamassassin_t self:unix_stream_socket connectto;
allow spamassassin_t self:shm create_shm_perms;
allow spamassassin_t self:sem create_sem_perms;
allow spamassassin_t self:msgq create_msgq_perms;
allow spamassassin_t self:msg { send receive };

manage_dirs_pattern(spamassassin_t, spamassassin_home_t, spamassassin_home_t)
manage_files_pattern(spamassassin_t, spamassassin_home_t, spamassassin_home_t)
manage_lnk_files_pattern(spamassassin_t, spamassassin_home_t, spamassassin_home_t)
manage_fifo_files_pattern(spamassassin_t, spamassassin_home_t, spamassassin_home_t)
manage_sock_files_pattern(spamassassin_t, spamassassin_home_t, spamassassin_home_t)
userdom_user_home_dir_filetrans(spamassassin_t, spamassassin_home_t, { dir file lnk_file sock_file fifo_file })

manage_dirs_pattern(spamassassin_t, spamassassin_tmp_t, spamassassin_tmp_t)
manage_files_pattern(spamassassin_t, spamassassin_tmp_t, spamassassin_tmp_t)
files_tmp_filetrans(spamassassin_t, spamassassin_tmp_t, { file dir })

manage_dirs_pattern(spamd_t, spamassassin_home_t, spamassassin_home_t)
manage_files_pattern(spamd_t, spamassassin_home_t, spamassassin_home_t)
manage_lnk_files_pattern(spamd_t, spamassassin_home_t, spamassassin_home_t)
manage_fifo_files_pattern(spamd_t, spamassassin_home_t, spamassassin_home_t)
manage_sock_files_pattern(spamd_t, spamassassin_home_t, spamassassin_home_t)
userdom_user_home_dir_filetrans(spamd_t, spamassassin_home_t, { dir file lnk_file sock_file fifo_file })

kernel_read_kernel_sysctls(spamassassin_t)

dev_read_urand(spamassassin_t)

fs_search_auto_mountpoints(spamassassin_t)

# this should probably be removed
corecmd_list_bin(spamassassin_t)
corecmd_read_bin_symlinks(spamassassin_t)
corecmd_read_bin_files(spamassassin_t)
corecmd_read_bin_pipes(spamassassin_t)
corecmd_read_bin_sockets(spamassassin_t)

domain_use_interactive_fds(spamassassin_t)

files_read_etc_files(spamassassin_t)
files_read_etc_runtime_files(spamassassin_t)
files_list_home(spamassassin_t)
files_read_usr_files(spamassassin_t)
files_dontaudit_search_var(spamassassin_t)

logging_send_syslog_msg(spamassassin_t)

miscfiles_read_localization(spamassassin_t)

# cjp: this could probably be removed
seutil_read_config(spamassassin_t)

sysnet_dns_name_resolve(spamassassin_t)

# set tunable if you have spamassassin do DNS lookups
tunable_policy(`spamassassin_can_network',`
	allow spamassassin_t self:tcp_socket create_stream_socket_perms;
	allow spamassassin_t self:udp_socket create_socket_perms;

	corenet_all_recvfrom_unlabeled(spamassassin_t)
	corenet_all_recvfrom_netlabel(spamassassin_t)
	corenet_tcp_sendrecv_generic_if(spamassassin_t)
	corenet_udp_sendrecv_generic_if(spamassassin_t)
	corenet_tcp_sendrecv_generic_node(spamassassin_t)
	corenet_udp_sendrecv_generic_node(spamassassin_t)
	corenet_tcp_sendrecv_all_ports(spamassassin_t)
	corenet_udp_sendrecv_all_ports(spamassassin_t)
	corenet_tcp_connect_all_ports(spamassassin_t)
	corenet_sendrecv_all_client_packets(spamassassin_t)

	sysnet_read_config(spamassassin_t)
')

tunable_policy(`spamd_enable_home_dirs',`
	userdom_manage_user_home_content_dirs(spamd_t)
	userdom_manage_user_home_content_files(spamd_t)
	userdom_manage_user_home_content_symlinks(spamd_t)
')

tunable_policy(`use_nfs_home_dirs',`
	fs_manage_nfs_dirs(spamassassin_t)
	fs_manage_nfs_files(spamassassin_t)
	fs_manage_nfs_symlinks(spamassassin_t)
')

tunable_policy(`use_samba_home_dirs',`
	fs_manage_cifs_dirs(spamassassin_t)
	fs_manage_cifs_files(spamassassin_t)
	fs_manage_cifs_symlinks(spamassassin_t)
')

optional_policy(`
	# Write pid file and socket in ~/.evolution/cache/tmp
	evolution_home_filetrans(spamd_t, spamd_tmp_t, { file sock_file })
')

optional_policy(`
	tunable_policy(`spamassassin_can_network && allow_ypbind',`
		nis_use_ypbind_uncond(spamassassin_t)
	')
')

optional_policy(`
	mta_read_config(spamassassin_t)
	sendmail_stub(spamassassin_t)
')

########################################
#
# Client local policy
#

allow spamc_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
allow spamc_t self:fd use;
allow spamc_t self:fifo_file rw_fifo_file_perms;
allow spamc_t self:sock_file read_sock_file_perms;
allow spamc_t self:shm create_shm_perms;
allow spamc_t self:sem create_sem_perms;
allow spamc_t self:msgq create_msgq_perms;
allow spamc_t self:msg { send receive };
allow spamc_t self:unix_dgram_socket create_socket_perms;
allow spamc_t self:unix_stream_socket create_stream_socket_perms;
allow spamc_t self:unix_dgram_socket sendto;
allow spamc_t self:unix_stream_socket connectto;
allow spamc_t self:tcp_socket create_stream_socket_perms;
allow spamc_t self:udp_socket create_socket_perms;

manage_dirs_pattern(spamc_t, spamc_tmp_t, spamc_tmp_t)
manage_files_pattern(spamc_t, spamc_tmp_t, spamc_tmp_t)
files_tmp_filetrans(spamc_t, spamc_tmp_t, { file dir })

# Allow connecting to a local spamd
allow spamc_t spamd_t:unix_stream_socket connectto;
allow spamc_t spamd_tmp_t:sock_file rw_sock_file_perms;

kernel_read_kernel_sysctls(spamc_t)

corenet_all_recvfrom_unlabeled(spamc_t)
corenet_all_recvfrom_netlabel(spamc_t)
corenet_tcp_sendrecv_generic_if(spamc_t)
corenet_udp_sendrecv_generic_if(spamc_t)
corenet_tcp_sendrecv_generic_node(spamc_t)
corenet_udp_sendrecv_generic_node(spamc_t)
corenet_tcp_sendrecv_all_ports(spamc_t)
corenet_udp_sendrecv_all_ports(spamc_t)
corenet_tcp_connect_all_ports(spamc_t)
corenet_sendrecv_all_client_packets(spamc_t)

fs_search_auto_mountpoints(spamc_t)

# cjp: these should probably be removed:
corecmd_list_bin(spamc_t)
corecmd_read_bin_symlinks(spamc_t)
corecmd_read_bin_files(spamc_t)
corecmd_read_bin_pipes(spamc_t)
corecmd_read_bin_sockets(spamc_t)

domain_use_interactive_fds(spamc_t)

files_read_etc_files(spamc_t)
files_read_etc_runtime_files(spamc_t)
files_read_usr_files(spamc_t)
files_dontaudit_search_var(spamc_t)
# cjp: this may be removable:
files_list_home(spamc_t)

logging_send_syslog_msg(spamc_t)

miscfiles_read_localization(spamc_t)

# cjp: this should probably be removed:
seutil_read_config(spamc_t)

sysnet_read_config(spamc_t)

optional_policy(`
	# Allow connection to spamd socket above
	evolution_stream_connect(spamc_t)
')

optional_policy(`
	# Needed for pyzor/razor called from spamd
	milter_manage_spamass_state(spamc_t)
')

optional_policy(`
	nis_use_ypbind(spamc_t)
')

optional_policy(`
	nscd_socket_use(spamc_t)
')

optional_policy(`
	mta_read_config(spamc_t)
	sendmail_stub(spamc_t)
')

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

# Spamassassin, when run as root and using per-user config files,
# setuids to the user running spamc.  Comment this if you are not
# using this ability.

allow spamd_t self:capability { setuid setgid dac_override sys_tty_config };
dontaudit spamd_t self:capability sys_tty_config;
allow spamd_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
allow spamd_t self:fd use;
allow spamd_t self:fifo_file rw_fifo_file_perms;
allow spamd_t self:sock_file read_sock_file_perms;
allow spamd_t self:shm create_shm_perms;
allow spamd_t self:sem create_sem_perms;
allow spamd_t self:msgq create_msgq_perms;
allow spamd_t self:msg { send receive };
allow spamd_t self:unix_dgram_socket create_socket_perms;
allow spamd_t self:unix_stream_socket create_stream_socket_perms;
allow spamd_t self:unix_dgram_socket sendto;
allow spamd_t self:unix_stream_socket connectto;
allow spamd_t self:tcp_socket create_stream_socket_perms;
allow spamd_t self:udp_socket create_socket_perms;
allow spamd_t self:netlink_route_socket r_netlink_socket_perms;

manage_dirs_pattern(spamd_t, spamd_spool_t, spamd_spool_t)
manage_files_pattern(spamd_t, spamd_spool_t, spamd_spool_t)
files_spool_filetrans(spamd_t, spamd_spool_t, { file dir })

manage_dirs_pattern(spamd_t, spamd_tmp_t, spamd_tmp_t)
manage_files_pattern(spamd_t, spamd_tmp_t, spamd_tmp_t)
files_tmp_filetrans(spamd_t, spamd_tmp_t, { file dir })

# var/lib files for spamd
allow spamd_t spamd_var_lib_t:dir list_dir_perms;
read_files_pattern(spamd_t, spamd_var_lib_t, spamd_var_lib_t)

manage_dirs_pattern(spamd_t, spamd_var_run_t, spamd_var_run_t)
manage_files_pattern(spamd_t, spamd_var_run_t, spamd_var_run_t)
files_pid_filetrans(spamd_t, spamd_var_run_t, { dir file })

kernel_read_all_sysctls(spamd_t)
kernel_read_system_state(spamd_t)

corenet_all_recvfrom_unlabeled(spamd_t)
corenet_all_recvfrom_netlabel(spamd_t)
corenet_tcp_sendrecv_generic_if(spamd_t)
corenet_udp_sendrecv_generic_if(spamd_t)
corenet_tcp_sendrecv_generic_node(spamd_t)
corenet_udp_sendrecv_generic_node(spamd_t)
corenet_tcp_sendrecv_all_ports(spamd_t)
corenet_udp_sendrecv_all_ports(spamd_t)
corenet_tcp_bind_generic_node(spamd_t)
corenet_tcp_bind_spamd_port(spamd_t)
corenet_tcp_connect_razor_port(spamd_t)
corenet_tcp_connect_smtp_port(spamd_t)
corenet_sendrecv_razor_client_packets(spamd_t)
corenet_sendrecv_spamd_server_packets(spamd_t)
# spamassassin 3.1 needs this for its
# DnsResolver.pm module which binds to
# random ports >= 1024.
corenet_udp_bind_generic_node(spamd_t)
corenet_udp_bind_generic_port(spamd_t)
corenet_udp_bind_imaze_port(spamd_t)
corenet_dontaudit_udp_bind_all_ports(spamd_t)
corenet_sendrecv_imaze_server_packets(spamd_t)
corenet_sendrecv_generic_server_packets(spamd_t)

dev_read_sysfs(spamd_t)
dev_read_urand(spamd_t)

fs_getattr_all_fs(spamd_t)
fs_search_auto_mountpoints(spamd_t)

auth_dontaudit_read_shadow(spamd_t)

corecmd_exec_bin(spamd_t)

domain_use_interactive_fds(spamd_t)

files_read_usr_files(spamd_t)
files_read_etc_files(spamd_t)
files_read_etc_runtime_files(spamd_t)
# /var/lib/spamassin
files_read_var_lib_files(spamd_t)

init_dontaudit_rw_utmp(spamd_t)

logging_send_syslog_msg(spamd_t)

miscfiles_read_localization(spamd_t)

sysnet_read_config(spamd_t)
sysnet_use_ldap(spamd_t)
sysnet_dns_name_resolve(spamd_t)

userdom_use_unpriv_users_fds(spamd_t)
userdom_search_user_home_dirs(spamd_t)

tunable_policy(`use_nfs_home_dirs',`
	fs_manage_nfs_files(spamd_t)
')

tunable_policy(`use_samba_home_dirs',`
	fs_manage_cifs_files(spamd_t)
')

optional_policy(`
	amavis_manage_lib_files(spamd_t)
')

optional_policy(`
	cron_system_entry(spamd_t, spamd_exec_t)
')

optional_policy(`
	daemontools_service_domain(spamd_t, spamd_exec_t)
')

optional_policy(`
	dcc_domtrans_client(spamd_t)
	dcc_stream_connect_dccifd(spamd_t)
')

optional_policy(`
	milter_manage_spamass_state(spamd_t)
')

optional_policy(`
	corenet_tcp_connect_mysqld_port(spamd_t)
	corenet_sendrecv_mysqld_client_packets(spamd_t)

	mysql_search_db(spamd_t)
	mysql_stream_connect(spamd_t)
')

optional_policy(`
	nis_use_ypbind(spamd_t)
')

optional_policy(`
	postfix_read_config(spamd_t)
')

optional_policy(`
	corenet_tcp_connect_postgresql_port(spamd_t)
	corenet_sendrecv_postgresql_client_packets(spamd_t)

	postgresql_stream_connect(spamd_t)
')

optional_policy(`
	pyzor_domtrans(spamd_t)
	pyzor_signal(spamd_t)
')

optional_policy(`
	razor_domtrans(spamd_t)
')

optional_policy(`
	seutil_sigchld_newrole(spamd_t)
')

optional_policy(`
	sendmail_stub(spamd_t)
	mta_read_config(spamd_t)
')

optional_policy(`
	udev_read_db(spamd_t)
')