330 lines
7.5 KiB
Plaintext
330 lines
7.5 KiB
Plaintext
## <module name="mta" layer="services">
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## <summary>Policy common to all email tranfer agents.</summary>
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#######################################
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#
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# Per user domain template for this module
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#
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# mta_per_userdomain_template(userdomain_prefix)
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#
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define(`mta_per_userdomain_template',`
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requires_block_template(`$0'_depend)
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type $1_mail_t; # , user_mail_domain, nscd_client_domain;
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domain_type($1_mail_t)
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role $1_r types $1_mail_t;
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type $1_mail_tmp_t;
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files_tmp_file($1_mail_tmp_t)
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##############################
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#
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# $1_mail_t local policy
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#
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allow $1_mail_t self:capability { setuid setgid chown };
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allow $1_mail_t self:process { signal_perms setrlimit };
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# tcp networking
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allow $1_mail_t self:tcp_socket create_socket_perms;
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# re-exec itself
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can_exec($1_mail_t, sendmail_exec_t)
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allow $1_mail_t sendmail_exec_t:lnk_file r_file_perms;
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# Transition from the user domain to the derived domain.
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domain_auto_trans($1_t, sendmail_exec_t, $1_mail_t)
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allow $1_t sendmail_exec_t:lnk_file { getattr read };
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allow $1_t $1_mail_t:fd use;
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allow $1_mail_t $1_t:fd use;
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allow $1_mail_t $1_t:fifo_file rw_file_perms;
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allow $1_mail_t $1_t:process sigchld;
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kernel_read_kernel_sysctl($1_mail_t)
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corenet_tcp_sendrecv_all_if($1_mail_t)
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corenet_raw_sendrecv_all_if($1_mail_t)
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corenet_tcp_sendrecv_all_nodes($1_mail_t)
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corenet_raw_sendrecv_all_nodes($1_mail_t)
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corenet_tcp_sendrecv_all_ports($1_mail_t)
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corenet_tcp_bind_all_nodes($1_mail_t)
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domain_use_wide_inherit_fd($1_mail_t)
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libs_use_ld_so($1_mail_t)
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libs_use_shared_libs($1_mail_t)
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corecmd_exec_bin($1_mail_t)
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files_read_generic_etc_files($1_mail_t)
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logging_send_syslog_msg($1_mail_t)
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miscfiles_read_localization($1_mail_t)
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sysnet_read_config($1_mail_t)
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tunable_policy(`use_dns',`
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allow $1_mail_t self:udp_socket create_socket_perms;
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corenet_udp_sendrecv_all_if($1_mail_t)
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corenet_udp_sendrecv_all_nodes($1_mail_t)
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corenet_udp_bind_all_nodes($1_mail_t)
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corenet_udp_sendrecv_dns_port($1_mail_t)
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')
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optional_policy(`procmail.te',`
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procmail_execute($1_mail_t)
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')
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ifdef(`TODO',`
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can_ypbind($1_mail_t)
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allow $1_mail_t device_t:dir search;
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allow $1_mail_t { var_t var_spool_t }:dir search;
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allow $1_mail_t sbin_t:dir search;
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# It wants to check for nscd
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dontaudit $1_mail_t var_run_t:dir search;
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# For when the user wants to send mail via port 25 localhost
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can_tcp_connect($1_t, mail_server_domain)
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# Read user temporary files.
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allow $1_mail_t $1_tmp_t:file r_file_perms;
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dontaudit $1_mail_t $1_tmp_t:file append;
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ifdef(`postfix.te', `
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# postfix seems to need write access if the file handle is opened read/write
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allow $1_mail_t $1_tmp_t:file write;
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')
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allow mta_user_agent $1_tmp_t:file r_file_perms;
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# Write to the user domain tty.
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allow mta_user_agent $1_tty_device_t:chr_file rw_file_perms;
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allow mta_user_agent devpts_t:dir r_dir_perms;
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allow mta_user_agent $1_devpts_t:chr_file rw_file_perms;
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allow $1_mail_t $1_tty_device_t:chr_file rw_file_perms;
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allow $1_mail_t devpts_t:dir r_dir_perms;
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allow $1_mail_t $1_devpts_t:chr_file rw_file_perms;
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# Inherit and use descriptors from gnome-pty-helper.
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ifdef(`gnome-pty-helper.te', `allow $1_mail_t $1_gph_t:fd use;')
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# Create dead.letter in user home directories.
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file_type_auto_trans($1_mail_t, $1_home_dir_t, $1_home_t, file)
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if (use_samba_home_dirs) {
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rw_dir_create_file($1_mail_t, cifs_t)
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}
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# if you do not want to allow dead.letter then use the following instead
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#allow $1_mail_t { $1_home_dir_t $1_home_t }:dir r_dir_perms;
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#allow $1_mail_t $1_home_t:file r_file_perms;
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# for reading .forward - maybe we need a new type for it?
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# also for delivering mail to maildir
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file_type_auto_trans(mta_delivery_agent, $1_home_dir_t, $1_home_t)
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ifdef(`qmail.te', `
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allow $1_mail_t qmail_etc_t:dir search;
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allow $1_mail_t qmail_etc_t:{ file lnk_file } read;
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')
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') dnl end TODO
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')
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define(`mta_per_userdomain_template_depend',`
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')
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#######################################
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#
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# mta_mailserver(domain,entrypointtype)
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#
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define(`mta_mailserver',`
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requires_block_template(`$0'_depend)
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init_daemon_domain($1,$2)
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typeattribute $1 mailserver_domain;
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')
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define(`mta_mailserver_depend',`
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attribute mailserver_domain;
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')
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#######################################
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#
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# mta_sendmail_mailserver(domain,entrypointtype)
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#
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define(`mta_sendmail_mailserver',`
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requires_block_template(`$0'_depend)
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mta_mailserver($1,sendmail_exec_t)
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')
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define(`mta_sendmail_mailserver_depend',`
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type sendmail_exec_t;
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')
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#######################################
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#
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# mta_send_mail(domain)
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#
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define(`mta_send_mail',`
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requires_block_template(`$0'_depend)
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allow $1 sendmail_exec_t:lnk_file r_file_perms;
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domain_auto_trans($1, sendmail_exec_t, system_mail_t)
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allow $1 system_mail_t:fd use;
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allow system_mail_t $1:fd use;
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allow system_mail_t $1:fifo_file rw_file_perms;
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allow system_mail_t $1:process sigchld;
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')
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define(`mta_send_mail_depend',`
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type system_mail_t, sendmail_exec_t;
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class file { getattr read execute };
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class lnk_file r_file_perms;
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class process { transition noatsecure siginh rlimitinh sigchld };
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class fd use;
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class fifo_file rw_file_perms;
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')
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#######################################
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#
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# mta_exec(domain)
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#
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define(`mta_exec',`
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requires_block_template(`$0'_depend)
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can_exec($1, sendmail_exec_t)
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')
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define(`mta_exec_depend',`
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type sendmail_exec_t;
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class file { getattr read execute execute_no_trans };
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')
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########################################
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## <interface name="mta_read_aliases">
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## <description>
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## Read mail address aliases.
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## </description>
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## <parameter name="domain">
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## The type of the process performing this action.
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## </parameter>
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## </interface>
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#
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define(`mta_read_aliases',`
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requires_block_template(`$0'_depend)
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allow $1 etc_aliases_t:file r_file_perms;
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')
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define(`mta_read_aliases_depend',`
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type etc_aliases_t;
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class file r_file_perms;
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')
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#######################################
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#
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# mta_rw_aliases(domain)
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#
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define(`mta_rw_aliases',`
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requires_block_template(`$0'_depend)
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allow sendmail_t etc_aliases_t:file { rw_file_perms setattr };
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')
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define(`mta_rw_aliases_depend',`
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type etc_aliases_t;
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class file { rw_file_perms setattr };
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')
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#######################################
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#
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# mta_getattr_spool(domain)
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#
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define(`mta_getattr_spool',`
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requires_block_template(`$0'_depend)
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files_search_spool($1)
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allow $1 mail_spool_t:dir r_dir_perms;
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allow $1 mail_spool_t:lnk_file read;
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allow $1 mail_spool_t:file getattr;
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')
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define(`mta_getattr_spool_depend',`
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type mail_spool_t;
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class dir r_dir_perms;
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class file getattr;
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class lnk_file read;
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')
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#######################################
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#
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# mta_rw_spool(domain)
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#
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define(`mta_rw_spool',`
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requires_block_template(`$0'_depend)
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files_search_spool($1)
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allow $1 mail_spool_t:dir rw_dir_perms;
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allow $1 mail_spool_t:file { rw_file_perms setattr };
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')
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define(`mta_rw_spool_depend',`
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type mail_spool_t;
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class dir rw_dir_perms;
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class file { rw_file_perms setattr };
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')
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#######################################
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#
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# mta_manage_spool(domain)
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#
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define(`mta_manage_spool',`
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requires_block_template(`$0'_depend)
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files_search_spool($1)
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allow $1 mail_spool_t:dir rw_dir_perms;
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allow $1 mail_spool_t:file create_file_perms;
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')
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define(`mta_manage_spool_depend',`
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type mail_spool_t;
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class dir rw_dir_perms;
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class file create_file_perms;
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')
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#######################################
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#
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# mta_manage_queue(domain)
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#
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define(`mta_manage_queue',`
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requires_block_template(`$0'_depend)
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allow $1 mqueue_spool_t:dir rw_dir_perms;
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allow $1 mqueue_spool_t:file create_file_perms;
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')
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define(`mta_manage_queue_depend',`
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type mqueue_spool_t;
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class dir rw_dir_perms;
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class file create_file_perms;
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')
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## </module>
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