amavis: add policy module

amavis.fc

@@ -0,0 +1,28 @@
+/etc/amavis(d)?\.conf	--	gen_context(system_u:object_r:amavis_etc_t,s0)
+/etc/amavisd(/.*)?	gen_context(system_u:object_r:amavis_etc_t,s0)
+
+/etc/rc\.d/init\.d/amavis	--	gen_context(system_u:object_r:amavis_initrc_exec_t,s0)
+/etc/rc\.d/init\.d/amavisd-snmp	--	gen_context(system_u:object_r:amavis_initrc_exec_t,s0)
+
+/usr/lib/AntiVir/antivir	--	gen_context(system_u:object_r:amavis_exec_t,s0)
+
+/usr/sbin/amavisd.*	--	gen_context(system_u:object_r:amavis_exec_t,s0)
+
+ifdef(`distro_debian',`
+/usr/sbin/amavisd-new-cronjob	--	gen_context(system_u:object_r:amavis_exec_t,s0)
+')
+
+/var/opt/f-secure(/.*)?	gen_context(system_u:object_r:amavis_var_lib_t,s0)
+
+/var/amavis(/.*)?	gen_context(system_u:object_r:amavis_var_lib_t,s0)
+
+/var/lib/amavis(/.*)?	gen_context(system_u:object_r:amavis_var_lib_t,s0)
+
+/var/log/amavisd\.log.*	--	gen_context(system_u:object_r:amavis_var_log_t,s0)
+
+/var/run/amavis(d)?(/.*)?	gen_context(system_u:object_r:amavis_var_run_t,s0)
+/var/run/amavisd-snmp-subagent\.pid	--	gen_context(system_u:object_r:amavis_var_run_t,s0)
+
+/var/spool/amavisd(/.*)?	gen_context(system_u:object_r:amavis_spool_t,s0)
+
+/var/virusmails(/.*)?	gen_context(system_u:object_r:amavis_quarantine_t,s0)

amavis.if

@@ -0,0 +1,264 @@
+## <summary>High-performance interface between an email server and content checkers.</summary>
+
+########################################
+## <summary>
+##	Execute a domain transition to run amavis.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed to transition.
+##	</summary>
+## </param>
+#
+interface(`amavis_domtrans',`
+	gen_require(`
+		type amavis_t, amavis_exec_t;
+	')
+
+	corecmd_search_bin($1)
+	domtrans_pattern($1, amavis_exec_t, amavis_t)
+')
+
+########################################
+## <summary>
+##	Execute amavis server in the amavis domain.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed to transition.
+##	</summary>
+## </param>
+#
+interface(`amavis_initrc_domtrans',`
+	gen_require(`
+		type amavis_initrc_exec_t;
+	')
+
+	init_labeled_script_domtrans($1, amavis_initrc_exec_t)
+')
+
+########################################
+## <summary>
+##	Read amavis spool files.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`amavis_read_spool_files',`
+	gen_require(`
+		type amavis_spool_t;
+	')
+
+	files_search_spool($1)
+	read_files_pattern($1, amavis_spool_t, amavis_spool_t)
+')
+
+########################################
+## <summary>
+##	Create, read, write, and delete
+##	amavis spool files.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`amavis_manage_spool_files',`
+	gen_require(`
+		type amavis_spool_t;
+	')
+
+	files_search_spool($1)
+	manage_dirs_pattern($1, amavis_spool_t, amavis_spool_t)
+	manage_files_pattern($1, amavis_spool_t, amavis_spool_t)
+')
+
+########################################
+## <summary>
+##	Create objects in the amavis spool directories
+##	with a private type.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+## <param name="private_type">
+##	<summary>
+##	Private file type.
+##	</summary>
+## </param>
+## <param name="object_class">
+##	<summary>
+##	Class of the object being created.
+##	</summary>
+## </param>
+## <param name="name" optional="true">
+##	<summary>
+##	The name of the object being created.
+##	</summary>
+## </param>
+#
+interface(`amavis_spool_filetrans',`
+	gen_require(`
+		type amavis_spool_t;
+	')
+
+	files_search_spool($1)
+	filetrans_pattern($1, amavis_spool_t, $2, $3, $4)
+')
+
+########################################
+## <summary>
+##	Search amavis lib directories.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`amavis_search_lib',`
+	gen_require(`
+		type amavis_var_lib_t;
+	')
+
+	allow $1 amavis_var_lib_t:dir search_dir_perms;
+	files_search_var_lib($1)
+')
+
+########################################
+## <summary>
+##	Read amavis lib files.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`amavis_read_lib_files',`
+	gen_require(`
+		type amavis_var_lib_t;
+	')
+
+	read_files_pattern($1, amavis_var_lib_t, amavis_var_lib_t)
+	allow $1 amavis_var_lib_t:dir list_dir_perms;
+	files_search_var_lib($1)
+')
+
+########################################
+## <summary>
+##	Create, read, write, and delete
+##	amavis lib files.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`amavis_manage_lib_files',`
+	gen_require(`
+		type amavis_var_lib_t;
+	')
+
+	manage_files_pattern($1, amavis_var_lib_t, amavis_var_lib_t)
+	files_search_var_lib($1)
+')
+
+########################################
+## <summary>
+##	Set attributes of amavis pid files.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`amavis_setattr_pid_files',`
+	gen_require(`
+		type amavis_var_run_t;
+	')
+
+	allow $1 amavis_var_run_t:file setattr_file_perms;
+	files_search_pids($1)
+')
+
+########################################
+## <summary>
+##	Create amavis pid files.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+#
+interface(`amavis_create_pid_files',`
+	gen_require(`
+		type amavis_var_run_t;
+	')
+
+	allow $1 amavis_var_run_t:dir add_entry_dir_perms;
+	allow $1 amavis_var_run_t:file create_file_perms;
+	files_search_pids($1)
+')
+
+########################################
+## <summary>
+##	All of the rules required to
+##	administrate an amavis environment.
+## </summary>
+## <param name="domain">
+##	<summary>
+##	Domain allowed access.
+##	</summary>
+## </param>
+## <param name="role">
+##	<summary>
+##	Role allowed access.
+##	</summary>
+## </param>
+## <rolecap/>
+#
+interface(`amavis_admin',`
+	gen_require(`
+		type amavis_t, amavis_tmp_t, amavis_var_log_t;
+		type amavis_spool_t, amavis_var_lib_t, amavis_var_run_t;
+		type amavis_etc_t, amavis_quarantine_t, amavis_initrc_exec_t;
+	')
+
+	allow $1 amavis_t:process { ptrace signal_perms };
+	ps_process_pattern($1, amavis_t)
+
+	amavis_initrc_domtrans($1)
+ 	domain_system_change_exemption($1)
+ 	role_transition $2 amavis_initrc_exec_t system_r;
+ 	allow $2 system_r;
+
+	files_list_etc($1)
+	admin_pattern($1, amavis_etc_t)
+
+	admin_pattern($1, amavis_quarantine_t)
+
+	files_list_spool($1)
+	admin_pattern($1, amavis_spool_t)
+
+	files_list_tmp($1)
+	admin_pattern($1, amavis_tmp_t)
+
+	files_list_var_lib($1)
+	admin_pattern($1, amavis_var_lib_t)
+
+	logging_list_logs($1)
+	admin_pattern($1, amavis_var_log_t)
+
+	files_list_pids($1)
+	admin_pattern($1, amavis_var_run_t)
+')

amavis.te

@@ -0,0 +1,207 @@
+policy_module(amavis, 1.15.3)
+
+########################################
+#
+# 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_var_run_t;
+files_pid_file(amavis_var_run_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 { kill chown dac_override 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 { listen accept };
+
+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_var_run_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_lnk_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_var_run_t, amavis_var_run_t)
+manage_files_pattern(amavis_t, amavis_var_run_t, amavis_var_run_t)
+manage_sock_files_pattern(amavis_t, amavis_var_run_t, amavis_var_run_t)
+files_pid_filetrans(amavis_t, amavis_var_run_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_unlabeled(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_sendrecv_all_ports(amavis_t)
+corenet_udp_sendrecv_all_ports(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)
+
+hostname_domtrans(amavis_t)
+
+gen_require(`
+	type lib_t;
+')
+allow amavis_t lib_t:file execute_no_trans;
+
+tunable_policy(`amavis_use_jit',`
+	allow amavis_t self:process execmem;
+',`
+	dontaudit amavis_t self:process execmem;
+')
+
+optional_policy(`
+	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(`
+	dcc_domtrans_client(amavis_t)
+	dcc_stream_connect_dccifd(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)
+')