policy_module(procmail, 1.11.1)

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

type procmail_t;
type procmail_exec_t;
application_domain(procmail_t, procmail_exec_t)
role system_r types procmail_t;

type procmail_log_t;
logging_log_file(procmail_log_t) 

type procmail_tmp_t;
files_tmp_file(procmail_tmp_t)

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

allow procmail_t self:capability { sys_nice chown fsetid setuid setgid dac_override };
allow procmail_t self:process { setsched signal signull };
allow procmail_t self:fifo_file rw_fifo_file_perms;
allow procmail_t self:unix_stream_socket create_socket_perms;
allow procmail_t self:unix_dgram_socket create_socket_perms;
allow procmail_t self:tcp_socket create_stream_socket_perms;
allow procmail_t self:udp_socket create_socket_perms;

can_exec(procmail_t, procmail_exec_t)

# Write log to /var/log/procmail.log or /var/log/procmail/.*
allow procmail_t procmail_log_t:dir setattr;
create_files_pattern(procmail_t, procmail_log_t, procmail_log_t)
append_files_pattern(procmail_t, procmail_log_t, procmail_log_t)
read_lnk_files_pattern(procmail_t, procmail_log_t, procmail_log_t)
logging_log_filetrans(procmail_t, procmail_log_t, { file dir })

allow procmail_t procmail_tmp_t:file manage_file_perms;
files_tmp_filetrans(procmail_t, procmail_tmp_t, file)

kernel_read_system_state(procmail_t)
kernel_read_kernel_sysctls(procmail_t)

corenet_all_recvfrom_unlabeled(procmail_t)
corenet_all_recvfrom_netlabel(procmail_t)
corenet_tcp_sendrecv_generic_if(procmail_t)
corenet_udp_sendrecv_generic_if(procmail_t)
corenet_tcp_sendrecv_generic_node(procmail_t)
corenet_udp_sendrecv_generic_node(procmail_t)
corenet_tcp_sendrecv_all_ports(procmail_t)
corenet_udp_sendrecv_all_ports(procmail_t)
corenet_udp_bind_generic_node(procmail_t)
corenet_tcp_connect_spamd_port(procmail_t)
corenet_sendrecv_spamd_client_packets(procmail_t)
corenet_sendrecv_comsat_client_packets(procmail_t)

dev_read_urand(procmail_t)

fs_getattr_xattr_fs(procmail_t)
fs_search_auto_mountpoints(procmail_t)
fs_rw_anon_inodefs_files(procmail_t)

auth_use_nsswitch(procmail_t)

corecmd_exec_bin(procmail_t)
corecmd_exec_shell(procmail_t)
corecmd_read_bin_symlinks(procmail_t)

files_read_etc_files(procmail_t)
files_read_etc_runtime_files(procmail_t)
files_search_pids(procmail_t)
# for spamassasin
files_read_usr_files(procmail_t)

logging_send_syslog_msg(procmail_t)

miscfiles_read_localization(procmail_t)

# only works until we define a different type for maildir
userdom_manage_user_home_content_dirs(procmail_t)
userdom_manage_user_home_content_files(procmail_t)
userdom_manage_user_home_content_symlinks(procmail_t)
userdom_manage_user_home_content_pipes(procmail_t)
userdom_manage_user_home_content_sockets(procmail_t)
userdom_user_home_dir_filetrans_user_home_content(procmail_t, { dir file lnk_file fifo_file sock_file })

# Do not audit attempts to access /root.
userdom_dontaudit_search_user_home_dirs(procmail_t)

mta_manage_spool(procmail_t)
mta_read_queue(procmail_t)

ifdef(`hide_broken_symptoms',`
	mta_dontaudit_rw_queue(procmail_t)
')

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

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

optional_policy(`
	clamav_domtrans_clamscan(procmail_t)
	clamav_search_lib(procmail_t)
')

optional_policy(`
	munin_dontaudit_search_lib(procmail_t)
')

optional_policy(`
	# for a bug in the postfix local program
	postfix_dontaudit_rw_local_tcp_sockets(procmail_t)
	postfix_dontaudit_use_fds(procmail_t)
	postfix_read_spool_files(procmail_t)
	postfix_read_local_state(procmail_t)
	postfix_read_master_state(procmail_t)
')

optional_policy(`
	pyzor_domtrans(procmail_t)
	pyzor_signal(procmail_t)
')

optional_policy(`
	mta_read_config(procmail_t)
	sendmail_domtrans(procmail_t)
	sendmail_signal(procmail_t)
	sendmail_dontaudit_rw_tcp_sockets(procmail_t)
	sendmail_dontaudit_rw_unix_stream_sockets(procmail_t)
')

optional_policy(`
	corenet_udp_bind_generic_port(procmail_t)
	corenet_dontaudit_udp_bind_all_ports(procmail_t)

	spamassassin_domtrans_local_client(procmail_t)
	spamassassin_domtrans_client(procmail_t)
	spamassassin_read_lib_files(procmail_t)
')