policy_module(exim, 1.5.0) ######################################## # # Declarations # ## ##

## Allow exim to connect to databases (postgres, mysql) ##

##
gen_tunable(exim_can_connect_db, false) ## ##

## Allow exim to read unprivileged user files. ##

##
gen_tunable(exim_read_user_files, false) ## ##

## Allow exim to create, read, write, and delete ## unprivileged user files. ##

##
gen_tunable(exim_manage_user_files, false) type exim_t; type exim_exec_t; init_daemon_domain(exim_t, exim_exec_t) mta_mailserver(exim_t, exim_exec_t) mta_mailserver_user_agent(exim_t) application_executable_file(exim_exec_t) mta_agent_executable(exim_exec_t) type exim_initrc_exec_t; init_script_file(exim_initrc_exec_t) type exim_log_t; logging_log_file(exim_log_t) type exim_spool_t; files_type(exim_spool_t) type exim_tmp_t; files_tmp_file(exim_tmp_t) type exim_var_run_t; files_pid_file(exim_var_run_t) ######################################## # # exim local policy # allow exim_t self:capability { chown dac_override dac_read_search fowner setuid setgid sys_resource }; allow exim_t self:process { setrlimit setpgid }; allow exim_t self:fifo_file rw_fifo_file_perms; allow exim_t self:unix_stream_socket create_stream_socket_perms; allow exim_t self:tcp_socket create_stream_socket_perms; allow exim_t self:udp_socket create_socket_perms; can_exec(exim_t, exim_exec_t) manage_files_pattern(exim_t, exim_log_t, exim_log_t) logging_log_filetrans(exim_t, exim_log_t, { file dir }) manage_dirs_pattern(exim_t, exim_spool_t, exim_spool_t) manage_files_pattern(exim_t, exim_spool_t, exim_spool_t) manage_sock_files_pattern(exim_t, exim_spool_t, exim_spool_t) files_spool_filetrans(exim_t, exim_spool_t, { file dir sock_file }) manage_dirs_pattern(exim_t, exim_tmp_t, exim_tmp_t) manage_files_pattern(exim_t, exim_tmp_t, exim_tmp_t) files_tmp_filetrans(exim_t, exim_tmp_t, { file dir }) manage_dirs_pattern(exim_t, exim_var_run_t, exim_var_run_t) manage_files_pattern(exim_t, exim_var_run_t, exim_var_run_t) files_pid_filetrans(exim_t, exim_var_run_t, { file dir }) kernel_read_kernel_sysctls(exim_t) kernel_read_network_state(exim_t) kernel_dontaudit_read_system_state(exim_t) corecmd_search_bin(exim_t) corenet_all_recvfrom_unlabeled(exim_t) corenet_all_recvfrom_netlabel(exim_t) corenet_tcp_sendrecv_generic_if(exim_t) corenet_udp_sendrecv_generic_if(exim_t) corenet_tcp_sendrecv_generic_node(exim_t) corenet_udp_sendrecv_generic_node(exim_t) corenet_tcp_sendrecv_all_ports(exim_t) corenet_tcp_bind_generic_node(exim_t) corenet_tcp_bind_smtp_port(exim_t) corenet_tcp_bind_amavisd_send_port(exim_t) corenet_tcp_connect_auth_port(exim_t) corenet_tcp_connect_smtp_port(exim_t) corenet_tcp_connect_ldap_port(exim_t) corenet_tcp_connect_inetd_child_port(exim_t) # connect to spamassassin corenet_tcp_connect_spamd_port(exim_t) dev_read_rand(exim_t) dev_read_urand(exim_t) # Init script handling domain_use_interactive_fds(exim_t) files_search_usr(exim_t) files_search_var(exim_t) files_read_etc_files(exim_t) files_read_etc_runtime_files(exim_t) files_getattr_all_mountpoints(exim_t) fs_getattr_xattr_fs(exim_t) fs_list_inotifyfs(exim_t) auth_use_nsswitch(exim_t) logging_send_syslog_msg(exim_t) miscfiles_read_localization(exim_t) miscfiles_read_generic_certs(exim_t) userdom_dontaudit_search_user_home_dirs(exim_t) mta_read_aliases(exim_t) mta_read_config(exim_t) mta_manage_spool(exim_t) mta_mailserver_delivery(exim_t) tunable_policy(`exim_can_connect_db',` corenet_tcp_connect_mysqld_port(exim_t) corenet_sendrecv_mysqld_client_packets(exim_t) corenet_tcp_connect_postgresql_port(exim_t) corenet_sendrecv_postgresql_client_packets(exim_t) ') tunable_policy(`exim_read_user_files',` userdom_read_user_home_content_files(exim_t) userdom_read_user_tmp_files(exim_t) ') tunable_policy(`exim_manage_user_files',` userdom_manage_user_home_content_dirs(exim_t) userdom_read_user_tmp_files(exim_t) userdom_write_user_tmp_files(exim_t) ') optional_policy(` clamav_domtrans_clamscan(exim_t) clamav_stream_connect(exim_t) ') optional_policy(` cron_read_pipes(exim_t) cron_rw_system_job_pipes(exim_t) ') optional_policy(` cyrus_stream_connect(exim_t) ') optional_policy(` kerberos_keytab_template(exim, exim_t) ') optional_policy(` mailman_read_data_files(exim_t) mailman_domtrans(exim_t) ') optional_policy(` nagios_search_spool(exim_t) ') optional_policy(` tunable_policy(`exim_can_connect_db',` mysql_stream_connect(exim_t) ') ') optional_policy(` tunable_policy(`exim_can_connect_db',` postgresql_stream_connect(exim_t) ') ') optional_policy(` procmail_domtrans(exim_t) procmail_read_home_files(exim_t) ') optional_policy(` sasl_connect(exim_t) ') optional_policy(` # https://bugzilla.redhat.com/show_bug.cgi?id=512710 # uses sendmail for outgoing mail and exim # for incoming mail sendmail_manage_tmp_files(exim_t) ') optional_policy(` spamassassin_exec(exim_t) spamassassin_exec_client(exim_t) ')