]> git.ipfire.org Git - people/stevee/selinux-policy.git/blobdiff - policy/modules/services/mta.te
Bump module versions for release.
[people/stevee/selinux-policy.git] / policy / modules / services / mta.te
index bd4c6cdf3b50692523d26b5e3174a481f8f44be4..aefbd0167a13481d2b42480fffe307c3d3917efd 100644 (file)
@@ -1,11 +1,13 @@
 
-policy_module(mta,1.9.1)
+policy_module(mta, 2.3.0)
 
 ########################################
 #
 # Declarations
 #
 
+attribute mailcontent_type;
+attribute mta_exec_type;
 attribute mta_user_agent;
 attribute mailserver_delivery;
 attribute mailserver_domain;
@@ -19,38 +21,68 @@ files_type(etc_aliases_t)
 type etc_mail_t;
 files_config_file(etc_mail_t)
 
+type mail_forward_t;
+files_type(mail_forward_t)
+
 type mqueue_spool_t;
-files_type(mqueue_spool_t)
+files_mountpoint(mqueue_spool_t)
 
 type mail_spool_t;
-files_type(mail_spool_t)
+files_mountpoint(mail_spool_t)
 
 type sendmail_exec_t;
-application_executable_file(sendmail_exec_t)
+mta_agent_executable(sendmail_exec_t)
 
 mta_base_mail_template(system)
 role system_r types system_mail_t;
 
+mta_base_mail_template(user)
+typealias user_mail_t alias { staff_mail_t sysadm_mail_t };
+typealias user_mail_t alias { auditadm_mail_t secadm_mail_t };
+typealias user_mail_tmp_t alias { staff_mail_tmp_t sysadm_mail_tmp_t };
+typealias user_mail_tmp_t alias { auditadm_mail_tmp_t secadm_mail_tmp_t };
+ubac_constrained(user_mail_t)
+ubac_constrained(user_mail_tmp_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 };
+allow system_mail_t self:capability { dac_override fowner };
+allow system_mail_t self:fifo_file rw_fifo_file_perms;
+
+read_files_pattern(system_mail_t, etc_mail_t, etc_mail_t)
+
+read_files_pattern(system_mail_t, mailcontent_type, mailcontent_type)
 
-read_files_pattern(system_mail_t,etc_mail_t,etc_mail_t)
+allow system_mail_t mail_forward_t:file read_file_perms;
+
+allow system_mail_t mta_exec_type:file entrypoint;
+
+can_exec(system_mail_t, mta_exec_type)
 
 kernel_read_system_state(system_mail_t)
 kernel_read_network_state(system_mail_t)
+kernel_request_load_module(system_mail_t)
 
+dev_read_sysfs(system_mail_t)
 dev_read_rand(system_mail_t)
 dev_read_urand(system_mail_t)
 
+files_read_usr_files(system_mail_t)
+
+fs_rw_anon_inodefs_files(system_mail_t)
+
+selinux_getattr_fs(system_mail_t)
+
+term_dontaudit_use_unallocated_ttys(system_mail_t)
+
 init_use_script_ptys(system_mail_t)
 
-sysadm_use_terms(system_mail_t)
-sysadm_dontaudit_search_home_dirs(system_mail_t)
+userdom_use_user_terminals(system_mail_t)
+userdom_dontaudit_search_user_home_dirs(system_mail_t)
 
 optional_policy(`
        apache_read_squirrelmail_data(system_mail_t)
@@ -71,15 +103,36 @@ optional_policy(`
        ')
 ')
 
+optional_policy(`
+       clamav_stream_connect(system_mail_t)
+       clamav_append_log(system_mail_t)
+')
+
 optional_policy(`
        cron_read_system_job_tmp_files(system_mail_t)
        cron_dontaudit_write_pipes(system_mail_t)
+       cron_rw_system_job_stream_sockets(system_mail_t)
+')
+
+optional_policy(`
+       courier_manage_spool_dirs(system_mail_t)
+       courier_manage_spool_files(system_mail_t)
+       courier_rw_spool_pipes(system_mail_t)
 ')
 
 optional_policy(`
        cvs_read_data(system_mail_t)
 ')
 
+optional_policy(`
+       exim_domtrans(system_mail_t)
+       exim_manage_log(system_mail_t)
+')
+
+optional_policy(`
+       fail2ban_append_log(system_mail_t)
+')
+
 optional_policy(`
        logrotate_read_tmp_files(system_mail_t)
 ')
@@ -88,17 +141,22 @@ optional_policy(`
        logwatch_read_tmp_files(system_mail_t)
 ')
 
+optional_policy(`
+       # newaliases runs as system_mail_t when the sendmail initscript does a restart
+       milter_getattr_all_sockets(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 })
+       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)
 
@@ -111,11 +169,7 @@ optional_policy(`
 
        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)
+               postfix_config_filetrans(system_mail_t, etc_aliases_t, { dir file lnk_file sock_file fifo_file })
        ')
 ')
 
@@ -128,7 +182,7 @@ optional_policy(`
 ')
 
 optional_policy(`
-       userdom_dontaudit_use_unpriv_users_ptys(system_mail_t)
+       userdom_dontaudit_use_user_ptys(system_mail_t)
 
        optional_policy(`
                cron_dontaudit_append_system_job_tmp_files(system_mail_t)
@@ -154,3 +208,88 @@ optional_policy(`
                cron_read_system_job_tmp_files(mta_user_agent)
        ')
 ')
+
+########################################
+#
+# Mailserver delivery local policy
+#
+
+allow mailserver_delivery mail_spool_t:dir list_dir_perms;
+create_files_pattern(mailserver_delivery, mail_spool_t, mail_spool_t)
+read_files_pattern(mailserver_delivery, mail_spool_t, mail_spool_t)
+append_files_pattern(mailserver_delivery, mail_spool_t, mail_spool_t)
+create_lnk_files_pattern(mailserver_delivery, mail_spool_t, mail_spool_t)
+read_lnk_files_pattern(mailserver_delivery, mail_spool_t, mail_spool_t)
+
+read_files_pattern(mailserver_delivery, mail_forward_t, mail_forward_t)
+
+read_files_pattern(mailserver_delivery, system_mail_tmp_t, system_mail_tmp_t)
+
+tunable_policy(`use_samba_home_dirs',`
+       fs_manage_cifs_dirs(mailserver_delivery)
+       fs_manage_cifs_files(mailserver_delivery)
+       fs_manage_cifs_symlinks(mailserver_delivery)
+')
+
+tunable_policy(`use_nfs_home_dirs',`
+       fs_manage_nfs_dirs(mailserver_delivery)
+       fs_manage_nfs_files(mailserver_delivery)
+       fs_manage_nfs_symlinks(mailserver_delivery)
+')
+
+optional_policy(`
+       dovecot_manage_spool(mailserver_delivery)
+       dovecot_domtrans_deliver(mailserver_delivery)
+')
+
+optional_policy(`
+       # so MTA can access /var/lib/mailman/mail/wrapper
+       files_search_var_lib(mailserver_delivery)
+
+       mailman_domtrans(mailserver_delivery)
+       mailman_read_data_symlinks(mailserver_delivery)
+')
+
+########################################
+#
+# User send mail local policy
+#
+
+domain_use_interactive_fds(user_mail_t)
+
+userdom_use_user_terminals(user_mail_t)
+# Write to the user domain tty. cjp: why?
+userdom_use_user_terminals(mta_user_agent)
+# Create dead.letter in user home directories.
+userdom_manage_user_home_content_files(user_mail_t)
+userdom_user_home_dir_filetrans_user_home_content(user_mail_t, file)
+# for reading .forward - maybe we need a new type for it?
+# also for delivering mail to maildir
+userdom_manage_user_home_content_dirs(mailserver_delivery)
+userdom_manage_user_home_content_files(mailserver_delivery)
+userdom_manage_user_home_content_symlinks(mailserver_delivery)
+userdom_manage_user_home_content_pipes(mailserver_delivery)
+userdom_manage_user_home_content_sockets(mailserver_delivery)
+userdom_user_home_dir_filetrans_user_home_content(mailserver_delivery, { dir file lnk_file fifo_file sock_file })
+# Read user temporary files.
+userdom_read_user_tmp_files(user_mail_t)
+userdom_dontaudit_append_user_tmp_files(user_mail_t)
+# cjp: this should probably be read all user tmp
+# files in an appropriate place for mta_user_agent
+userdom_read_user_tmp_files(mta_user_agent)
+
+tunable_policy(`use_samba_home_dirs',`
+       fs_manage_cifs_files(user_mail_t)
+       fs_manage_cifs_symlinks(user_mail_t)
+')
+
+optional_policy(`
+       allow user_mail_t self:capability dac_override;
+
+       # Read user temporary files.
+       # postfix seems to need write access if the file handle is opened read/write
+       userdom_rw_user_tmp_files(user_mail_t)
+
+       postfix_read_config(user_mail_t)
+       postfix_list_spool(user_mail_t)
+')