policy_module(mta, 1.10.1)

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

attribute mailcontent_type;
attribute mta_exec_type;
attribute mta_user_agent;
attribute mailserver_delivery;
attribute mailserver_domain;
attribute mailserver_sender;

attribute user_mail_domain;

type etc_aliases_t;
files_type(etc_aliases_t)

type etc_mail_t;
files_config_file(etc_mail_t)

type mqueue_spool_t;
files_mountpoint(mqueue_spool_t)

type mail_spool_t;
files_mountpoint(mail_spool_t)

type sendmail_exec_t;
mta_agent_executable(sendmail_exec_t)

mta_base_mail_template(system)
role system_r types system_mail_t;

########################################
#
# System mail local policy
#

# newalias required this, not sure if it is needed in 'if' file
allow system_mail_t self:capability { dac_override };

read_files_pattern(system_mail_t, etc_mail_t, etc_mail_t)

allow system_mail_t mta_exec_type:file entrypoint;

allow system_mail_t mailcontent_type:file read_file_perms;

kernel_read_system_state(system_mail_t)
kernel_read_network_state(system_mail_t)

dev_read_rand(system_mail_t)
dev_read_urand(system_mail_t)

init_use_script_ptys(system_mail_t)

sysadm_use_terms(system_mail_t)
sysadm_dontaudit_search_home_dirs(system_mail_t)

optional_policy(`
	apache_read_squirrelmail_data(system_mail_t)
	apache_append_squirrelmail_data(system_mail_t)

	# apache should set close-on-exec
	apache_dontaudit_append_log(system_mail_t)
	apache_dontaudit_rw_stream_sockets(system_mail_t)
	apache_dontaudit_rw_tcp_sockets(system_mail_t)
	apache_dontaudit_rw_sys_script_stream_sockets(system_mail_t)
')

optional_policy(`
	arpwatch_manage_tmp_files(system_mail_t)

	ifdef(`hide_broken_symptoms', `
		arpwatch_dontaudit_rw_packet_sockets(system_mail_t)
	')
')

optional_policy(`
	cron_read_system_job_tmp_files(system_mail_t)
	cron_dontaudit_write_pipes(system_mail_t)
')

optional_policy(`
	cvs_read_data(system_mail_t)
')

optional_policy(`
	logrotate_read_tmp_files(system_mail_t)
')

optional_policy(`
	logwatch_read_tmp_files(system_mail_t)
')

optional_policy(`
	nagios_read_tmp_files(system_mail_t)
')

optional_policy(`
	manage_dirs_pattern(system_mail_t, etc_aliases_t, etc_aliases_t)
	manage_files_pattern(system_mail_t, etc_aliases_t, etc_aliases_t)
	manage_lnk_files_pattern(system_mail_t, etc_aliases_t, etc_aliases_t)
	manage_fifo_files_pattern(system_mail_t, etc_aliases_t, etc_aliases_t)
	manage_sock_files_pattern(system_mail_t, etc_aliases_t, etc_aliases_t)
	files_etc_filetrans(system_mail_t, etc_aliases_t, { file lnk_file sock_file fifo_file })

	domain_use_interactive_fds(system_mail_t)

	# postfix needs this for newaliases
	files_getattr_tmp_dirs(system_mail_t)

	postfix_exec_master(system_mail_t)
	postfix_read_config(system_mail_t)
	postfix_search_spool(system_mail_t)

	ifdef(`distro_redhat',`
		# compatability for old default main.cf
		postfix_config_filetrans(system_mail_t, etc_aliases_t, { dir file lnk_file sock_file fifo_file })
	')

	optional_policy(`
		cron_rw_tcp_sockets(system_mail_t)
	')
')

optional_policy(`
	qmail_domtrans_inject(system_mail_t)
')

optional_policy(`
	sxid_read_log(system_mail_t)
')

optional_policy(`
	userdom_dontaudit_use_unpriv_users_ptys(system_mail_t)

	optional_policy(`
		cron_dontaudit_append_system_job_tmp_files(system_mail_t)
	')
')

optional_policy(`
	smartmon_read_tmp_files(system_mail_t)
')

# should break this up among sections:

optional_policy(`
	# why is mail delivered to a directory of type arpwatch_data_t?
	arpwatch_search_data(mailserver_delivery)
	arpwatch_manage_tmp_files(mta_user_agent)

	ifdef(`hide_broken_symptoms', `
		arpwatch_dontaudit_rw_packet_sockets(mta_user_agent)
	')

	optional_policy(`
		cron_read_system_job_tmp_files(mta_user_agent)
	')
')