policy_module(amavis)

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

## <desc>
##	<p>
##	Determine whether amavis can
##	use JIT compiler.
##	</p>
## </desc>
gen_tunable(amavis_use_jit, false)

type amavis_t;
type amavis_exec_t;
init_daemon_domain(amavis_t, amavis_exec_t)

type amavis_etc_t;
files_config_file(amavis_etc_t)

type amavis_initrc_exec_t;
init_script_file(amavis_initrc_exec_t)

type amavis_runtime_t alias amavis_var_run_t;
files_runtime_file(amavis_runtime_t)

type amavis_var_lib_t;
files_type(amavis_var_lib_t)

type amavis_var_log_t;
logging_log_file(amavis_var_log_t)

type amavis_tmp_t;
files_tmp_file(amavis_tmp_t)

type amavis_quarantine_t;
files_type(amavis_quarantine_t)

type amavis_spool_t;
files_type(amavis_spool_t)

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

allow amavis_t self:capability { chown dac_override kill setgid setuid };
dontaudit amavis_t self:capability sys_tty_config;
allow amavis_t self:process signal_perms;
allow amavis_t self:fifo_file rw_fifo_file_perms;
allow amavis_t self:unix_stream_socket { accept connectto listen };
allow amavis_t self:tcp_socket { accept listen };

allow amavis_t amavis_etc_t:dir list_dir_perms;
read_files_pattern(amavis_t, amavis_etc_t, amavis_etc_t)
read_lnk_files_pattern(amavis_t, amavis_etc_t, amavis_etc_t)

manage_dirs_pattern(amavis_t, amavis_quarantine_t, amavis_quarantine_t)
manage_files_pattern(amavis_t, amavis_quarantine_t, amavis_quarantine_t)
manage_sock_files_pattern(amavis_t, amavis_quarantine_t, amavis_quarantine_t)

manage_dirs_pattern(amavis_t, amavis_spool_t, amavis_spool_t)
manage_files_pattern(amavis_t, amavis_spool_t, amavis_spool_t)
manage_lnk_files_pattern(amavis_t, amavis_spool_t, amavis_spool_t)
manage_sock_files_pattern(amavis_t, amavis_spool_t, amavis_spool_t)
filetrans_pattern(amavis_t, amavis_spool_t, amavis_runtime_t, sock_file)

manage_files_pattern(amavis_t, amavis_tmp_t, amavis_tmp_t)
allow amavis_t amavis_tmp_t:dir setattr_dir_perms;
files_tmp_filetrans(amavis_t, amavis_tmp_t, file)

manage_dirs_pattern(amavis_t, amavis_var_lib_t, amavis_var_lib_t)
manage_files_pattern(amavis_t, amavis_var_lib_t, amavis_var_lib_t)
manage_sock_files_pattern(amavis_t, amavis_var_lib_t, amavis_var_lib_t)

allow amavis_t amavis_var_log_t:dir setattr_dir_perms;
manage_files_pattern(amavis_t, amavis_var_log_t, amavis_var_log_t)
manage_sock_files_pattern(amavis_t, amavis_var_log_t, amavis_var_log_t)
logging_log_filetrans(amavis_t, amavis_var_log_t, { sock_file file dir })

manage_dirs_pattern(amavis_t, amavis_runtime_t, amavis_runtime_t)
manage_files_pattern(amavis_t, amavis_runtime_t, amavis_runtime_t)
manage_sock_files_pattern(amavis_t, amavis_runtime_t, amavis_runtime_t)
files_runtime_filetrans(amavis_t, amavis_runtime_t, { dir file sock_file })

can_exec(amavis_t, amavis_exec_t)

kernel_read_kernel_sysctls(amavis_t)
kernel_read_system_state(amavis_t)
kernel_dontaudit_list_proc(amavis_t)
kernel_dontaudit_read_proc_symlinks(amavis_t)

corecmd_exec_bin(amavis_t)
corecmd_exec_shell(amavis_t)

corenet_all_recvfrom_netlabel(amavis_t)
corenet_tcp_sendrecv_generic_if(amavis_t)
corenet_udp_sendrecv_generic_if(amavis_t)
corenet_tcp_sendrecv_generic_node(amavis_t)
corenet_udp_sendrecv_generic_node(amavis_t)
corenet_tcp_bind_generic_node(amavis_t)
corenet_udp_bind_generic_node(amavis_t)

corenet_sendrecv_amavisd_send_client_packets(amavis_t)
corenet_tcp_connect_amavisd_send_port(amavis_t)

corenet_sendrecv_amavisd_recv_server_packets(amavis_t)
corenet_tcp_bind_amavisd_recv_port(amavis_t)

corenet_sendrecv_generic_server_packets(amavis_t)
corenet_udp_bind_generic_port(amavis_t)
corenet_dontaudit_udp_bind_all_ports(amavis_t)

corenet_sendrecv_razor_client_packets(amavis_t)
corenet_tcp_connect_razor_port(amavis_t)

dev_read_rand(amavis_t)
dev_read_sysfs(amavis_t)
dev_read_urand(amavis_t)

domain_use_interactive_fds(amavis_t)
domain_dontaudit_read_all_domains_state(amavis_t)

files_read_etc_runtime_files(amavis_t)
files_read_usr_files(amavis_t)
files_search_spool(amavis_t)

fs_getattr_xattr_fs(amavis_t)

auth_use_nsswitch(amavis_t)
auth_dontaudit_read_shadow(amavis_t)

init_read_state(amavis_t)
init_read_utmp(amavis_t)
init_stream_connect_script(amavis_t)

logging_send_syslog_msg(amavis_t)

miscfiles_read_localization(amavis_t)

userdom_dontaudit_search_user_home_dirs(amavis_t)

tunable_policy(`amavis_use_jit',`
	allow amavis_t self:process execmem;
',`
	dontaudit amavis_t self:process execmem;
')

optional_policy(`
	clamav_scannable_files(amavis_spool_t)
	clamav_stream_connect(amavis_t)
	clamav_domtrans_clamscan(amavis_t)
	clamav_read_state_clamd(amavis_t)
')

optional_policy(`
	cron_use_fds(amavis_t)
	cron_use_system_job_fds(amavis_t)
	cron_rw_pipes(amavis_t)
')

optional_policy(`
	mta_read_config(amavis_t)
')

optional_policy(`
	postfix_read_config(amavis_t)
	postfix_list_spool(amavis_t)
')

optional_policy(`
	pyzor_domtrans(amavis_t)
	pyzor_signal(amavis_t)
')

optional_policy(`
	razor_domtrans(amavis_t)
')

optional_policy(`
	snmp_manage_var_lib_dirs(amavis_t)
	snmp_manage_var_lib_files(amavis_t)
	snmp_stream_connect(amavis_t)
')

optional_policy(`
	spamassassin_exec(amavis_t)
	spamassassin_exec_client(amavis_t)
	spamassassin_read_lib_files(amavis_t)
')
