selinux-refpolicy/refpolicy/policy/modules/services/mta.te

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policy_module(mta,1.1.3)
########################################
#
# Declarations
#
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_type(mqueue_spool_t)
type mail_spool_t;
files_type(mail_spool_t)
type sendmail_exec_t;
files_type(sendmail_exec_t)
mta_base_mail_template(system)
role system_r types system_mail_t;
# cjp: need to resolve this, but require{}
# does not work in the else part of the optional
#ifdef(`strict_policy',`
# optional_policy(`sendmail',`',`
# init_system_domain(system_mail_t,sendmail_exec_t)
# ')
#')
########################################
#
# System mail local policy
#
allow system_mail_t etc_mail_t:dir { getattr search };
allow system_mail_t etc_mail_t:file r_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_pty(system_mail_t)
userdom_use_sysadm_terms(system_mail_t)
ifdef(`targeted_policy',`
typealias system_mail_t alias sysadm_mail_t;
allow system_mail_t mail_spool_t:dir create_dir_perms;
allow system_mail_t mail_spool_t:file create_file_perms;
allow system_mail_t mail_spool_t:lnk_file create_lnk_perms;
allow system_mail_t mail_spool_t:fifo_file rw_file_perms;
allow system_mail_t mqueue_spool_t:dir create_dir_perms;
allow system_mail_t mqueue_spool_t:file create_file_perms;
allow system_mail_t mqueue_spool_t:lnk_file create_lnk_perms;
# for reading .forward - maybe we need a new type for it?
# also for delivering mail to maildir
# cjp: fix this to generic_user interfaces
userdom_manage_user_home_subdirs(user,mailserver_delivery)
userdom_manage_user_home_subdir_files(user,mailserver_delivery)
userdom_manage_user_home_subdir_symlinks(user,mailserver_delivery)
userdom_manage_user_home_subdir_pipes(user,mailserver_delivery)
userdom_manage_user_home_subdir_sockets(user,mailserver_delivery)
userdom_create_user_home(user,mailserver_delivery,{ dir file lnk_file fifo_file sock_file })
# cjp: another require-in-else to resolve
# optional_policy(`postfix',`',`
corecmd_exec_bin(system_mail_t)
corecmd_exec_sbin(system_mail_t)
domain_exec_all_entry_files(system_mail_t)
files_exec_etc_files(system_mail_t)
libs_exec_ld_so(system_mail_t)
libs_exec_lib_files(system_mail_t)
# ')
')
optional_policy(`apache',`
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_socket(system_mail_t)
apache_dontaudit_rw_tcp_socket(system_mail_t)
apache_dontaudit_rw_sys_script_stream_socket(system_mail_t)
')
optional_policy(`arpwatch',`
arpwatch_manage_tmp_files(system_mail_t)
ifdef(`hide_broken_symptoms', `
arpwatch_dontaudit_rw_packet_socket(system_mail_t)
')
')
optional_policy(`cron',`
cron_read_system_job_tmp_files(system_mail_t)
cron_dontaudit_write_pipe(system_mail_t)
')
optional_policy(`cvs',`
cvs_read_data(system_mail_t)
')
optional_policy(`logrotate',`
logrotate_read_tmp_files(system_mail_t)
')
optional_policy(`logwatch',`
logwatch_read_tmp_files(system_mail_t)
')
optional_policy(`sendmail',`
files_create_etc_config(sendmail_t,etc_aliases_t, file)
')
optional_policy(`postfix',`
allow system_mail_t etc_aliases_t:dir create_dir_perms;
allow system_mail_t etc_aliases_t:file create_file_perms;
allow system_mail_t etc_aliases_t:lnk_file create_lnk_perms;
allow system_mail_t etc_aliases_t:sock_file create_file_perms;
allow system_mail_t etc_aliases_t:fifo_file create_file_perms;
files_create_etc_config(system_mail_t,etc_aliases_t,{ file lnk_file sock_file fifo_file })
domain_use_wide_inherit_fd(system_mail_t)
# postfix needs this for newaliases
files_getattr_tmp_dir(system_mail_t)
postfix_exec_master(system_mail_t)
ifdef(`distro_redhat',`
# compatability for old default main.cf
postfix_create_config(system_mail_t,etc_aliases_t,{ dir file lnk_file sock_file fifo_file })
')
optional_policy(`cron',`
cron_crw_tcp_socket(system_mail_t)
')
')
optional_policy(`sendmail',`
userdom_dontaudit_use_unpriv_user_pty(system_mail_t)
optional_policy(`cron',`
cron_dontaudit_append_system_job_tmp_files(system_mail_t)
')
')
optional_policy(`smartmon',`
smartmon_read_tmp(system_mail_t)
')
# should break this up among sections:
optional_policy(`arpwatch',`
# 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_socket(mta_user_agent)
')
optional_policy(`cron',`
cron_read_system_job_tmp_files(mta_user_agent)
')
')
ifdef(`TODO',`
# for the start script to run make -C /etc/mail
allow initrc_t etc_mail_t:dir rw_dir_perms;
allow initrc_t etc_mail_t:file create_file_perms;
')