policy_module(amavis,1.2.1)

########################################

#

# Declarations

#

type amavis_t;

type amavis_exec_t;

domain_type(amavis_t)

init_daemon_domain(amavis_t, amavis_exec_t)

# configuration files

type amavis_etc_t;

files_type(amavis_etc_t)

# pid files

type amavis_var_run_t;

files_pid_file(amavis_var_run_t)

# var/lib files

type amavis_var_lib_t;

files_type(amavis_var_lib_t)

# log files

type amavis_var_log_t;

logging_log_file(amavis_var_log_t)

# tmp files

type amavis_tmp_t;

files_tmp_file(amavis_tmp_t)

# virus quarantine

type amavis_quarantine_t;

files_type(amavis_quarantine_t)

type amavis_spool_t;

files_type(amavis_spool_t)

########################################

#

# amavis 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 sigchld signull };

allow amavis_t self:fifo_file rw_fifo_file_perms;

allow amavis_t self:unix_stream_socket create_stream_socket_perms;

allow amavis_t self:unix_dgram_socket create_socket_perms;

allow amavis_t self:tcp_socket { listen accept };

allow amavis_t self:netlink_route_socket r_netlink_socket_perms;

# configuration files

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)

# mail quarantine

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)

# Spool Files

manage_dirs_pattern(amavis_t,amavis_spool_t,amavis_spool_t)

manage_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)

files_search_spool(amavis_t)

# tmp files

manage_files_pattern(amavis_t,amavis_tmp_t,amavis_tmp_t)

allow amavis_t amavis_tmp_t:dir setattr;

files_tmp_filetrans(amavis_t,amavis_tmp_t,file)

# var/lib files for amavis

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)

files_search_var_lib(amavis_t)

# log files

allow amavis_t amavis_var_log_t:dir setattr;

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 })

# pid file

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, { file sock_file })

kernel_read_kernel_sysctls(amavis_t)

# amavis tries to access /proc/self/stat, /etc/shadow and /root - perl...

kernel_dontaudit_list_proc(amavis_t)

kernel_dontaudit_read_proc_symlinks(amavis_t)

kernel_dontaudit_read_system_state(amavis_t)

# find perl

corecmd_exec_bin(amavis_t)

corenet_non_ipsec_sendrecv(amavis_t)

corenet_tcp_sendrecv_all_if(amavis_t)

corenet_tcp_sendrecv_all_nodes(amavis_t)

corenet_tcp_bind_all_nodes(amavis_t)

corenet_udp_bind_all_nodes(amavis_t)

# amavis uses well-defined ports

corenet_tcp_sendrecv_amavisd_recv_port(amavis_t)

corenet_tcp_sendrecv_amavisd_send_port(amavis_t)

# just the other side not. ;-)

corenet_tcp_sendrecv_all_ports(amavis_t)

# connect to backchannel port

corenet_tcp_connect_amavisd_send_port(amavis_t)

# bind to incoming port

corenet_tcp_bind_amavisd_recv_port(amavis_t)

corenet_udp_bind_generic_port(amavis_t)

corenet_tcp_connect_razor_port(amavis_t)

dev_read_rand(amavis_t)

dev_read_urand(amavis_t)

domain_use_interactive_fds(amavis_t)

files_read_etc_files(amavis_t)

files_read_etc_runtime_files(amavis_t)

files_read_usr_files(amavis_t)

auth_dontaudit_read_shadow(amavis_t)

init_stream_connect_script(amavis_t)

libs_use_ld_so(amavis_t)

libs_use_shared_libs(amavis_t)

logging_send_syslog_msg(amavis_t)

miscfiles_read_localization(amavis_t)

sysnet_dns_name_resolve(amavis_t)

sysnet_use_ldap(amavis_t)

userdom_dontaudit_search_sysadm_home_dirs(amavis_t)

# Cron handling

cron_use_fds(amavis_t)

cron_use_system_job_fds(amavis_t)

cron_rw_pipes(amavis_t)

mta_read_config(amavis_t)

ifdef(`targeted_policy',`

	term_dontaudit_use_generic_ptys(amavis_t)

	term_dontaudit_use_unallocated_ttys(amavis_t)

')

optional_policy(`

	clamav_stream_connect(amavis_t)

	clamav_domtrans_clamscan(amavis_t)

')

optional_policy(`

	dcc_domtrans_client(amavis_t)

	dcc_stream_connect_dccifd(amavis_t)

')

optional_policy(`

	postfix_read_config(amavis_t)

')

optional_policy(`

	pyzor_domtrans(amavis_t)

')

optional_policy(`

	razor_domtrans(amavis_t)

')

optional_policy(`

	spamassassin_exec(amavis_t)

	spamassassin_exec_client(amavis_t)

	spamassassin_read_lib_files(amavis_t)

')