From 04926d07a8ab35594cebb6e1650de4d712efd8dd Mon Sep 17 00:00:00 2001 From: Chris PeBenito Date: Oct 23 2005 20:18:36 +0000 Subject: add postfix --- diff --git a/refpolicy/Changelog b/refpolicy/Changelog index 732188f..15dd368 100644 --- a/refpolicy/Changelog +++ b/refpolicy/Changelog @@ -11,6 +11,7 @@ lpd networkmanager pegasus + postfix radius spamassassin xdm diff --git a/refpolicy/policy/modules/services/cron.if b/refpolicy/policy/modules/services/cron.if index 2f1179c..c20e965 100644 --- a/refpolicy/policy/modules/services/cron.if +++ b/refpolicy/policy/modules/services/cron.if @@ -392,10 +392,26 @@ interface(`cron_read_pipe',` interface(`cron_rw_pipe',` gen_require(` type crond_t; - class file { read write }; ') - allow $1 crond_t:file { read write }; + allow $1 crond_t:fifo_file { read write }; +') + +######################################## +## +## Create, read, and write a cron daemon TCP socket. +## +## +## Domain allowed access. +## +# +# cjp: need to fix this name +interface(`cron_crw_tcp_socket',` + gen_require(` + type crond_t; + ') + + allow $1 crond_t:tcp_socket { create read write }; ') ######################################## @@ -449,7 +465,6 @@ interface(`cron_domtrans_anacron_system_job',` interface(`cron_use_system_job_fd',` gen_require(` type system_crond_t; - class fd use; ') allow $1 system_crond_t:fd use; @@ -457,7 +472,7 @@ interface(`cron_use_system_job_fd',` ######################################## ## -## Wrate a system cron job unnamed pipe. +## Write a system cron job unnamed pipe. ## ## ## Domain allowed access. @@ -474,6 +489,22 @@ interface(`cron_write_system_job_pipe',` ######################################## ## +## Read and write a system cron job unnamed pipe. +## +## +## Domain allowed access. +## +# +interface(`cron_rw_system_job_pipe',` + gen_require(` + type system_crond_t; + ') + + allow $1 system_crond_t:file rw_file_perms; +') + +######################################## +## ## Read temporary files from the system cron jobs. ## ## diff --git a/refpolicy/policy/modules/services/mta.if b/refpolicy/policy/modules/services/mta.if index c452cf0..26ac53e 100644 --- a/refpolicy/policy/modules/services/mta.if +++ b/refpolicy/policy/modules/services/mta.if @@ -43,11 +43,11 @@ interface(`mta_stub',` # template(`mta_per_userdomain_template',` gen_require(` - attribute mailserver_domain, mta_user_agent; + attribute mailserver_domain, mta_user_agent, user_mail_domain; type sendmail_exec_t; ') - type $1_mail_t; + type $1_mail_t, user_mail_domain; domain_type($1_mail_t) role $3 types $1_mail_t; @@ -128,6 +128,12 @@ template(`mta_per_userdomain_template',` nscd_use_socket($1_mail_t) ') + optional_policy(`postfix.te',` + allow $1_mail_t self:capability dac_override; + postfix_read_config($1_mail_t) + postfix_list_spool($1_mail_t) + ') + ifdef(`TODO',` optional_policy(`procmail.te',` procmail_execute($1_mail_t) @@ -376,7 +382,7 @@ interface(`mta_rw_aliases',` ') files_search_etc($1) - allow sendmail_t etc_aliases_t:file { rw_file_perms setattr }; + allow $1 etc_aliases_t:file { rw_file_perms setattr }; ') ####################################### @@ -491,6 +497,24 @@ interface(`mta_append_spool',` ') ####################################### +## +## Delete from the mail spool. +## +## +## Domain allowed access. +## +# +interface(`mta_delete_spool',` + gen_require(` + type mail_spool_t; + ') + + files_search_spool($1) + allow $1 mail_spool_t:dir { list_dir_perms write remove_name }; + allow $1 mail_spool_t:file unlink; +') + +####################################### # # mta_manage_spool(domain) # @@ -523,3 +547,37 @@ interface(`mta_manage_queue',` allow $1 mqueue_spool_t:dir rw_dir_perms; allow $1 mqueue_spool_t:file create_file_perms; ') + +####################################### +## +## Read sendmail binary. +## +## +## Domain allowed access. +## +# +# cjp: added for postfix +interface(`mta_read_sendmail_bin',` + gen_require(` + type sendmail_exec_t;; + ') + + allow $1 sendmail_exec_t:file r_file_perms; +') + +####################################### +## +## Read and write unix domain stream sockets +## of user mail domains. +## +## +## Domain allowed access. +## +# +interface(`mta_rw_user_mail_stream_socket',` + gen_require(` + attribute user_mail_domain; + ') + + allow $1 user_mail_domain:unix_stream_socket rw_socket_perms; +') diff --git a/refpolicy/policy/modules/services/mta.te b/refpolicy/policy/modules/services/mta.te index 7eaca38..a1c9513 100644 --- a/refpolicy/policy/modules/services/mta.te +++ b/refpolicy/policy/modules/services/mta.te @@ -11,6 +11,8 @@ attribute mailserver_delivery; attribute mailserver_domain; attribute mailserver_sender; +attribute user_mail_domain; + type etc_aliases_t; files_type(etc_aliases_t) @@ -152,8 +154,23 @@ optional_policy(`nscd.te',` nscd_use_socket(system_mail_t) ') +optional_policy(`postfix.te',` + postfix_stub(system_mail_t) + + 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(sysadm_mail_t,etc_aliases_t,{ file lnk_file sock_file fifo_file }) + + optional_policy(`crond.te',` + cron_crw_tcp_socket(system_mail_t) + ') +') + optional_policy(`sendmail.te',` - sendmail_stub() + sendmail_stub(system_mail_t) allow system_mail_t etc_mail_t:dir { getattr search }; diff --git a/refpolicy/policy/modules/services/postfix.fc b/refpolicy/policy/modules/services/postfix.fc new file mode 100644 index 0000000..ce02866 --- /dev/null +++ b/refpolicy/policy/modules/services/postfix.fc @@ -0,0 +1,59 @@ +# postfix +/etc/postfix(/.*)? gen_context(system_u:object_r:postfix_etc_t,s0) +ifdef(`distro_redhat', ` +/etc/postfix/aliases.* gen_context(system_u:object_r:etc_aliases_t,s0) +/usr/libexec/postfix/.* -- gen_context(system_u:object_r:postfix_exec_t,s0) +/usr/libexec/postfix/cleanup -- gen_context(system_u:object_r:postfix_cleanup_exec_t,s0) +/usr/libexec/postfix/local -- gen_context(system_u:object_r:postfix_local_exec_t,s0) +/usr/libexec/postfix/master -- gen_context(system_u:object_r:postfix_master_exec_t,s0) +/usr/libexec/postfix/pickup -- gen_context(system_u:object_r:postfix_pickup_exec_t,s0) +/usr/libexec/postfix/(n)?qmgr -- gen_context(system_u:object_r:postfix_qmgr_exec_t,s0) +/usr/libexec/postfix/showq -- gen_context(system_u:object_r:postfix_showq_exec_t,s0) +/usr/libexec/postfix/smtp -- gen_context(system_u:object_r:postfix_smtp_exec_t,s0) +/usr/libexec/postfix/scache -- gen_context(system_u:object_r:postfix_smtp_exec_t,s0) +/usr/libexec/postfix/smtpd -- gen_context(system_u:object_r:postfix_smtpd_exec_t,s0) +/usr/libexec/postfix/bounce -- gen_context(system_u:object_r:postfix_bounce_exec_t,s0) +/usr/libexec/postfix/pipe -- gen_context(system_u:object_r:postfix_pipe_exec_t,s0) +', ` +/usr/lib/postfix/.* -- gen_context(system_u:object_r:postfix_exec_t,s0) +/usr/lib/postfix/cleanup -- gen_context(system_u:object_r:postfix_cleanup_exec_t,s0) +/usr/lib/postfix/local -- gen_context(system_u:object_r:postfix_local_exec_t,s0) +/usr/lib/postfix/master -- gen_context(system_u:object_r:postfix_master_exec_t,s0) +/usr/lib/postfix/pickup -- gen_context(system_u:object_r:postfix_pickup_exec_t,s0) +/usr/lib/postfix/(n)?qmgr -- gen_context(system_u:object_r:postfix_qmgr_exec_t,s0) +/usr/lib/postfix/showq -- gen_context(system_u:object_r:postfix_showq_exec_t,s0) +/usr/lib/postfix/smtp -- gen_context(system_u:object_r:postfix_smtp_exec_t,s0) +/usr/lib/postfix/scache -- gen_context(system_u:object_r:postfix_smtp_exec_t,s0) +/usr/lib/postfix/smtpd -- gen_context(system_u:object_r:postfix_smtpd_exec_t,s0) +/usr/lib/postfix/bounce -- gen_context(system_u:object_r:postfix_bounce_exec_t,s0) +/usr/lib/postfix/pipe -- gen_context(system_u:object_r:postfix_pipe_exec_t,s0) +') +/etc/postfix/postfix-script.* -- gen_context(system_u:object_r:postfix_exec_t,s0) +/etc/postfix/prng_exch -- gen_context(system_u:object_r:postfix_prng_t,s0) +/usr/sbin/postalias -- gen_context(system_u:object_r:postfix_master_exec_t,s0) +/usr/sbin/postcat -- gen_context(system_u:object_r:postfix_master_exec_t,s0) +/usr/sbin/postdrop -- gen_context(system_u:object_r:postfix_postdrop_exec_t,s0) +/usr/sbin/postfix -- gen_context(system_u:object_r:postfix_master_exec_t,s0) +/usr/sbin/postkick -- gen_context(system_u:object_r:postfix_master_exec_t,s0) +/usr/sbin/postlock -- gen_context(system_u:object_r:postfix_master_exec_t,s0) +/usr/sbin/postlog -- gen_context(system_u:object_r:postfix_master_exec_t,s0) +/usr/sbin/postmap -- gen_context(system_u:object_r:postfix_map_exec_t,s0) +/usr/sbin/postqueue -- gen_context(system_u:object_r:postfix_postqueue_exec_t,s0) +/usr/sbin/postsuper -- gen_context(system_u:object_r:postfix_master_exec_t,s0) +/usr/sbin/rmail -- gen_context(system_u:object_r:sendmail_exec_t,s0) +/usr/sbin/sendmail.postfix -- gen_context(system_u:object_r:sendmail_exec_t,s0) +/var/spool/postfix(/.*)? gen_context(system_u:object_r:postfix_spool_t,s0) +/var/spool/postfix/maildrop(/.*)? gen_context(system_u:object_r:postfix_spool_maildrop_t,s0) +/var/spool/postfix/pid -d gen_context(system_u:object_r:var_run_t,s0) +/var/spool/postfix/pid/.* gen_context(system_u:object_r:postfix_var_run_t,s0) +/var/spool/postfix/private(/.*)? gen_context(system_u:object_r:postfix_private_t,s0) +/var/spool/postfix/public(/.*)? gen_context(system_u:object_r:postfix_public_t,s0) +/var/spool/postfix/bounce(/.*)? gen_context(system_u:object_r:postfix_spool_bounce_t,s0) +/var/spool/postfix/flush(/.*)? gen_context(system_u:object_r:postfix_spool_flush_t,s0) +/var/spool/postfix/etc(/.*)? gen_context(system_u:object_r:etc_t,s0) +/var/spool/postfix/lib(64)?(/.*)? gen_context(system_u:object_r:lib_t,s0) +/var/spool/postfix/usr(/.*)? gen_context(system_u:object_r:lib_t,s0) +/var/spool/postfix/lib(64)?/ld.*\.so.* -- gen_context(system_u:object_r:ld_so_t,s0) +/var/spool/postfix/lib(64)?/lib.*\.so.* -- gen_context(system_u:object_r:shlib_t,s0) +/var/spool/postfix/lib(64)?/[^/]*/lib.*\.so.* -- gen_context(system_u:object_r:shlib_t,s0) +/var/spool/postfix/lib(64)?/devfsd/.*\.so.* -- gen_context(system_u:object_r:shlib_t,s0) diff --git a/refpolicy/policy/modules/services/postfix.if b/refpolicy/policy/modules/services/postfix.if new file mode 100644 index 0000000..bf94aec --- /dev/null +++ b/refpolicy/policy/modules/services/postfix.if @@ -0,0 +1,219 @@ +## Postfix email server + +######################################## +## +## Postfix stub interface. No access allowed. +## +## +## N/A +## +# +interface(`postfix_stub',` + gen_require(` + type postfix_master_t; + ') +') + +template(`postfix_domain_template',` + type postfix_$1_t; + type postfix_$1_exec_t; + domain_type(postfix_$1_t) + domain_entry_file(postfix_$1_t,postfix_$1_exec_t) + role system_r types postfix_$1_t; + + dontaudit postfix_$1_t self:capability sys_tty_config; + allow postfix_$1_t self:process { signal_perms setpgid }; + allow postfix_$1_t self:unix_dgram_socket create_socket_perms; + allow postfix_$1_t self:unix_stream_socket create_stream_socket_perms; + allow postfix_$1_t self:unix_stream_socket connectto; + + allow postfix_master_t postfix_$1_t:process signal; + + allow postfix_$1_t postfix_etc_t:dir r_dir_perms; + allow postfix_$1_t postfix_etc_t:file r_file_perms; + + can_exec(postfix_$1_t, postfix_$1_exec_t) + + allow postfix_$1_t postfix_exec_t:file rx_file_perms; + # cjp: ??? + allow postfix_$1_t postfix_exec_t:dir r_dir_perms; + + allow postfix_$1_t postfix_master_t:process sigchld; + + allow postfix_$1_t postfix_spool_t:dir r_dir_perms; + + allow postfix_$1_t postfix_var_run_t:file manage_file_perms; + files_create_pid(postfix_$1_t,postfix_var_run_t) + + kernel_read_system_state(postfix_$1_t) + kernel_read_network_state(postfix_$1_t) + kernel_read_all_sysctl(postfix_$1_t) + + dev_read_sysfs(postfix_$1_t) + dev_read_rand(postfix_$1_t) + dev_read_urand(postfix_$1_t) + + fs_search_auto_mountpoints(postfix_$1_t) + fs_getattr_xattr_fs(postfix_$1_t) + + term_dontaudit_use_console(postfix_$1_t) + + corecmd_list_bin(postfix_$1_t) + corecmd_list_sbin(postfix_$1_t) + corecmd_read_bin_symlink(postfix_$1_t) + corecmd_read_sbin_symlink(postfix_$1_t) + corecmd_exec_shell(postfix_$1_t) + + files_read_etc_files(postfix_$1_t) + files_read_etc_runtime_files(postfix_$1_t) + files_search_spool(postfix_$1_t) + files_getattr_tmp_dir(postfix_$1_t) + + init_use_fd(postfix_$1_t) + init_sigchld(postfix_$1_t) + + libs_use_ld_so(postfix_$1_t) + libs_use_shared_libs(postfix_$1_t) + + logging_send_syslog_msg(postfix_$1_t) + + miscfiles_read_localization(postfix_$1_t) + miscfiles_read_certs(postfix_$1_t) + + userdom_dontaudit_use_unpriv_user_fd(postfix_$1_t) + + ifdef(`targeted_policy', ` + term_dontaudit_use_unallocated_tty(postfix_$1_t) + term_dontaudit_use_generic_pty(postfix_$1_t) + files_dontaudit_read_root_file(postfix_$1_t) + ') + + optional_policy(`udev.te',` + udev_read_db(postfix_$1_t) + ') +') + +template(`postfix_server_domain_template',` + postfix_domain_template($1) + + allow postfix_$1_t self:capability { setuid setgid dac_override }; + allow postfix_$1_t postfix_master_t:unix_stream_socket { connectto rw_stream_socket_perms }; + allow postfix_$1_t self:tcp_socket create_socket_perms; + allow postfix_$1_t self:udp_socket create_socket_perms; + + domain_auto_trans(postfix_master_t, postfix_$1_exec_t, postfix_$1_t) + + corenet_tcp_sendrecv_all_if(postfix_$1_t) + corenet_udp_sendrecv_all_if(postfix_$1_t) + corenet_raw_sendrecv_all_if(postfix_$1_t) + corenet_tcp_sendrecv_all_nodes(postfix_$1_t) + corenet_udp_sendrecv_all_nodes(postfix_$1_t) + corenet_raw_sendrecv_all_nodes(postfix_$1_t) + corenet_tcp_sendrecv_all_ports(postfix_$1_t) + corenet_udp_sendrecv_all_ports(postfix_$1_t) + corenet_tcp_bind_all_nodes(postfix_$1_t) + corenet_udp_bind_all_nodes(postfix_$1_t) + corenet_tcp_connect_all_ports(postfix_$1_t) + + sysnet_read_config(postfix_$1_t) + + optional_policy(`nis.te',` + nis_use_ypbind(postfix_$1_t) + ') +') + +template(`postfix_user_domain_template',` + postfix_domain_template($1) + + allow postfix_$1_t self:capability dac_override; + + domain_auto_trans(user_mail_domain, postfix_$1_exec_t, postfix_$1_t) + + # this is replaced by run interfaces + role sysadm_r types postfix_$1_t; + allow postfix_$1_t userdomain:process sigchld; + allow postfix_$1_t userdomain:fifo_file { write getattr }; + allow postfix_$1_t { userdomain privfd }:fd use; + +') + +template(`postfix_public_domain_template',` + postfix_server_domain_template($1) + + allow postfix_$1_t postfix_public_t:dir search; +') + +######################################## +## +## Read postfix configuration files. +## +## +## Domain allowed access. +## +# +interface(`postfix_read_config',` + gen_require(` + type postfix_etc_t; + ') + + allow $1 postfix_etc_t:dir { getattr read search }; + allow $1 postfix_etc_t:file { read getattr }; + allow $1 postfix_etc_t:lnk_file { getattr read }; + files_search_etc($1) +') + +######################################## +## +## Execute the master postfix program in the +## postfix_master domain. +## +## +## Domain allowed access. +## +# +interface(`postfix_domtrans_master',` + gen_require(` + type postfix_master_t, postfix_master_exec_t; + ') + + domain_auto_trans($1,postfix_master_exec_t,postfix_master_t) + + allow $1 postfix_master_t:fd use; + allow postfix_master_t $1:fd use; + allow postfix_master_t $1:fifo_file rw_file_perms; + allow postfix_master_t $1:process sigchld; +') + +######################################## +## +## Search postfix mail spool directories. +## +## +## Domain allowed access. +## +# +interface(`postfix_search_spool',` + gen_require(` + type postfix_spool_t; + ') + + allow $1 postfix_spool_t:dir search_dir_perms; + files_search_spool($1) +') + +######################################## +## +## List postfix mail spool directories. +## +## +## Domain allowed access. +## +# +interface(`postfix_list_spool',` + gen_require(` + type postfix_spool_t; + ') + + allow $1 postfix_spool_t:dir list_dir_perms; + files_search_spool($1) +') diff --git a/refpolicy/policy/modules/services/postfix.te b/refpolicy/policy/modules/services/postfix.te new file mode 100644 index 0000000..bbacede --- /dev/null +++ b/refpolicy/policy/modules/services/postfix.te @@ -0,0 +1,569 @@ + +policy_module(postfix,1.0) + +######################################## +# +# Declarations +# + +postfix_public_domain_template(bounce) + +type postfix_spool_bounce_t; +files_type(postfix_spool_bounce_t) + +postfix_public_domain_template(cleanup) + +type postfix_etc_t; +files_type(postfix_etc_t) + +type postfix_exec_t; +files_type(postfix_exec_t) + +postfix_server_domain_template(local) +mta_mailserver_delivery(postfix_local_t) + +type postfix_local_tmp_t; +files_tmp_file(postfix_local_tmp_t) + +# Program for creating database files +type postfix_map_t; +type postfix_map_exec_t; +domain_type(postfix_map_t) +domain_entry_file(postfix_map_t,postfix_map_exec_t) + +type postfix_map_tmp_t; +files_tmp_file(postfix_map_tmp_t) + +postfix_domain_template(master) +mta_mailserver(postfix_master_t,postfix_master_exec_t) + +postfix_public_domain_template(pickup) + +postfix_public_domain_template(pipe) + +postfix_user_domain_template(postdrop) +mta_mailserver_user_agent(postfix_postdrop_t) + +postfix_user_domain_template(postqueue) + +type postfix_private_t; +files_type(postfix_private_t) + +type postfix_prng_t; +files_type(postfix_prng_t) + +postfix_public_domain_template(qmgr) + +postfix_user_domain_template(showq) + +postfix_server_domain_template(smtp) +mta_mailserver_sender(postfix_smtp_t) + +postfix_server_domain_template(smtpd) + +type postfix_spool_t; +files_type(postfix_spool_t) + +type postfix_spool_maildrop_t; +files_type(postfix_spool_maildrop_t) + +type postfix_spool_flush_t; +files_type(postfix_spool_flush_t) + +type postfix_public_t; +files_type(postfix_public_t) + +type postfix_var_run_t; +files_pid_file(postfix_var_run_t) + +######################################## +# +# Postfix master process local policy +# + +# chown is to set the correct ownership of queue dirs +allow postfix_master_t self:capability { chown dac_override kill setgid setuid net_bind_service sys_tty_config }; +allow postfix_master_t self:fifo_file rw_file_perms; +allow postfix_master_t self:tcp_socket create_stream_socket_perms; +allow postfix_master_t self:udp_socket create_socket_perms; + +can_exec(postfix_master_t,postfix_exec_t) + +allow postfix_master_t postfix_map_exec_t:file rx_file_perms; + +allow postfix_master_t postfix_postdrop_exec_t:file getattr; + +allow postfix_master_t postfix_postqueue_exec_t:file getattr; + +allow postfix_master_t postfix_private_t:dir rw_dir_perms; +allow postfix_master_t postfix_private_t:sock_file create_file_perms; +allow postfix_master_t postfix_private_t:fifo_file create_file_perms; + +allow postfix_master_t postfix_prng_t:file rw_file_perms; + +allow postfix_master_t postfix_public_t:fifo_file create_file_perms; +allow postfix_master_t postfix_public_t:sock_file create_file_perms; +allow postfix_master_t postfix_public_t:dir rw_dir_perms; + +# allow access to deferred queue and allow removing bogus incoming entries +allow postfix_master_t postfix_spool_t:dir create_dir_perms; +allow postfix_master_t postfix_spool_t:file create_file_perms; + +allow postfix_master_t postfix_spool_flush_t:dir create_dir_perms; +allow postfix_master_t postfix_spool_flush_t:file create_file_perms; +allow postfix_master_t postfix_spool_flush_t:lnk_file create_lnk_perms; + +allow postfix_master_t postfix_spool_maildrop_t:dir rw_dir_perms; +allow postfix_master_t postfix_spool_maildrop_t:file { unlink rename getattr }; + +kernel_read_all_sysctl(postfix_master_t) + +corenet_tcp_sendrecv_all_if(postfix_master_t) +corenet_udp_sendrecv_all_if(postfix_master_t) +corenet_raw_sendrecv_all_if(postfix_master_t) +corenet_tcp_sendrecv_all_nodes(postfix_master_t) +corenet_udp_sendrecv_all_nodes(postfix_master_t) +corenet_raw_sendrecv_all_nodes(postfix_master_t) +corenet_tcp_sendrecv_all_ports(postfix_master_t) +corenet_udp_sendrecv_all_ports(postfix_master_t) +corenet_tcp_bind_all_nodes(postfix_master_t) +corenet_udp_bind_all_nodes(postfix_master_t) +corenet_tcp_bind_amavisd_send_port(postfix_master_t) +corenet_tcp_bind_smtp_port(postfix_master_t) +corenet_tcp_connect_all_ports(postfix_master_t) + +# for a find command +selinux_dontaudit_search_fs(postfix_master_t) + +corecmd_exec_ls(postfix_master_t) +corecmd_exec_sbin(postfix_master_t) +corecmd_exec_shell(postfix_master_t) +corecmd_exec_bin(postfix_master_t) + +domain_use_wide_inherit_fd(postfix_master_t) + +files_read_usr_files(postfix_master_t) + +init_use_script_pty(postfix_master_t) + +miscfiles_dontaudit_search_man_pages(postfix_master_t) + +seutil_sigchld_newrole(postfix_master_t) +# postfix does a "find" on startup for some reason - keep it quiet +seutil_dontaudit_search_config(postfix_master_t) + +sysnet_read_config(postfix_master_t) + +mta_rw_aliases(postfix_master_t) +mta_read_sendmail_bin(postfix_master_t) + +optional_policy(`mount.te',` + mount_send_nfs_client_request(postfix_master_t) +') + +optional_policy(`nis.te',` + nis_use_ypbind(postfix_master_t) +') + +########################################################### +# +# Partially converted rules. THESE ARE ONLY TEMPORARY +# + +ifdef(`distro_redhat',` + # for newer main.cf that uses /etc/aliases + allow postfix_master_t etc_t:dir rw_dir_perms; + allow postfix_master_t etc_aliases_t:dir create_dir_perms; + allow postfix_master_t etc_aliases_t:file create_file_perms; + allow postfix_master_t etc_aliases_t:lnk_file create_lnk_perms; + allow postfix_master_t etc_aliases_t:sock_file create_file_perms; + allow postfix_master_t etc_aliases_t:fifo_file create_file_perms; + type_transition postfix_master_t etc_t:{ file lnk_file sock_file fifo_file } etc_aliases_t; + + allow postfix_master_t postfix_etc_t:dir rw_dir_perms; + allow postfix_master_t etc_aliases_t:dir create_dir_perms; + allow postfix_master_t etc_aliases_t:file create_file_perms; + allow postfix_master_t etc_aliases_t:lnk_file create_lnk_perms; + allow postfix_master_t etc_aliases_t:sock_file create_file_perms; + allow postfix_master_t etc_aliases_t:fifo_file create_file_perms; + type_transition postfix_master_t postfix_etc_t:{ file lnk_file sock_file fifo_file } etc_aliases_t; +') + +# postfix needs this for newaliases +allow { system_mail_t sysadm_mail_t } tmp_t:dir getattr; + +can_exec({ sysadm_mail_t system_mail_t }, postfix_master_exec_t) + +allow sysadm_mail_t etc_aliases_t:dir create_dir_perms; +allow sysadm_mail_t etc_aliases_t:file create_file_perms; +allow sysadm_mail_t etc_aliases_t:lnk_file create_lnk_perms; +allow sysadm_mail_t etc_aliases_t:sock_file create_file_perms; +allow sysadm_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 }) + + +ifdef(`distro_redhat',` + # compatability for old default main.cf + allow { sysadm_mail_t system_mail_t } etc_aliases_t:dir create_dir_perms; + allow { sysadm_mail_t system_mail_t } etc_aliases_t:file create_file_perms; + allow { sysadm_mail_t system_mail_t } etc_aliases_t:lnk_file create_lnk_perms; + allow { sysadm_mail_t system_mail_t } etc_aliases_t:sock_file create_file_perms; + allow { sysadm_mail_t system_mail_t } etc_aliases_t:fifo_file create_file_perms; + + allow { sysadm_mail_t system_mail_t } postfix_etc_t:dir rw_dir_perms; + type_transition { sysadm_mail_t system_mail_t } postfix_etc_t:{ file lnk_file sock_file fifo_file } etc_aliases_t; + + allow { sysadm_mail_t system_mail_t } etc_aliases_t:dir create_dir_perms; + allow { sysadm_mail_t system_mail_t } etc_aliases_t:file create_file_perms; + allow { sysadm_mail_t system_mail_t } etc_aliases_t:lnk_file create_lnk_perms; + allow { sysadm_mail_t system_mail_t } etc_aliases_t:sock_file create_file_perms; + allow { sysadm_mail_t system_mail_t } etc_aliases_t:fifo_file create_file_perms; + + allow { sysadm_mail_t system_mail_t } postfix_etc_t:dir rw_dir_perms; + type_transition { sysadm_mail_t system_mail_t } postfix_etc_t:{ file lnk_file sock_file fifo_file } etc_aliases_t; +') + +# end partially converted rules + +######################################## +# +# Postfix bounce local policy +# + +allow postfix_bounce_t self:capability dac_read_search; +allow postfix_bounce_t self:tcp_socket create_socket_perms; + +allow postfix_bounce_t postfix_public_t:sock_file write; + +allow postfix_bounce_t postfix_spool_t:dir create_dir_perms; +allow postfix_bounce_t postfix_spool_t:file create_file_perms; +allow postfix_bounce_t postfix_spool_t:lnk_file create_lnk_perms; + +allow postfix_bounce_t postfix_spool_bounce_t:dir create_dir_perms; +allow postfix_bounce_t postfix_spool_bounce_t:file create_file_perms; +allow postfix_bounce_t postfix_spool_bounce_t:lnk_file create_lnk_perms; + +######################################## +# +# Postfix cleanup local policy +# + +allow postfix_cleanup_t self:process setrlimit; + +# connect to master process +allow postfix_cleanup_t postfix_master_t:unix_stream_socket connectto; +allow postfix_cleanup_t postfix_private_t:dir search; +allow postfix_cleanup_t postfix_private_t:sock_file rw_file_perms; + +allow postfix_cleanup_t postfix_public_t:fifo_file rw_file_perms; +allow postfix_cleanup_t postfix_public_t:sock_file { getattr write }; + +allow postfix_cleanup_t postfix_spool_t:dir create_dir_perms; +allow postfix_cleanup_t postfix_spool_t:file create_file_perms; +allow postfix_cleanup_t postfix_spool_t:lnk_file create_lnk_perms; + +allow postfix_cleanup_t postfix_spool_bounce_t:dir r_dir_perms; + +######################################## +# +# Postfix local local policy +# + +allow postfix_local_t self:fifo_file rw_file_perms; +allow postfix_local_t self:process { setsched setrlimit }; + +allow postfix_local_t postfix_local_tmp_t:dir create_dir_perms; +allow postfix_local_t postfix_local_tmp_t:file create_file_perms; +files_create_tmp_files(postfix_local_t, postfix_local_tmp_t, { file dir }) + +# connect to master process +allow postfix_local_t postfix_master_t:unix_stream_socket connectto; +allow postfix_local_t postfix_public_t:dir search; +allow postfix_local_t postfix_public_t:sock_file write; + +# for .forward - maybe we need a new type for it? +allow postfix_local_t postfix_private_t:dir search; +allow postfix_local_t postfix_private_t:sock_file rw_file_perms; + +allow postfix_local_t postfix_spool_t:file rw_file_perms; + +corecmd_exec_shell(postfix_local_t) +corecmd_exec_bin(postfix_local_t) + +mta_read_aliases(postfix_local_t) +mta_delete_spool(postfix_local_t) +# For reading spamassasin +mta_read_config(postfix_local_t) + +ifdef(`TODO',` +optional_policy(`procmail.te', ` + domain_auto_trans(postfix_local_t, procmail_exec_t, procmail_t) + # for a bug in the postfix local program + dontaudit procmail_t postfix_local_t:tcp_socket { read write }; + dontaudit procmail_t postfix_master_t:fd use; +') +') dnl end TODO + +######################################## +# +# Postfix map local policy +# + +allow postfix_map_t self:capability setgid; +allow postfix_map_t self:unix_stream_socket create_stream_socket_perms; +allow postfix_map_t self:unix_dgram_socket create_socket_perms; +allow postfix_map_t self:tcp_socket create_stream_socket_perms; +allow postfix_map_t self:udp_socket create_socket_perms; + +allow postfix_map_t postfix_etc_t:dir create_dir_perms; +allow postfix_map_t postfix_etc_t:file create_file_perms; +allow postfix_map_t postfix_etc_t:lnk_file create_lnk_perms; + +allow postfix_map_t postfix_map_tmp_t:dir create_dir_perms; +allow postfix_map_t postfix_map_tmp_t:file create_file_perms; +files_create_tmp_files(postfix_map_t, postfix_map_tmp_t, { file dir }) + +kernel_read_kernel_sysctl(postfix_map_t) + +corenet_tcp_sendrecv_all_if(postfix_map_t) +corenet_udp_sendrecv_all_if(postfix_map_t) +corenet_raw_sendrecv_all_if(postfix_map_t) +corenet_tcp_sendrecv_all_nodes(postfix_map_t) +corenet_udp_sendrecv_all_nodes(postfix_map_t) +corenet_raw_sendrecv_all_nodes(postfix_map_t) +corenet_tcp_bind_all_nodes(postfix_map_t) +corenet_udp_bind_all_nodes(postfix_map_t) +corenet_tcp_sendrecv_all_ports(postfix_map_t) +corenet_udp_sendrecv_all_ports(postfix_map_t) +corenet_tcp_connect_all_ports(postfix_map_t) + +corecmd_list_bin(postfix_map_t) +corecmd_read_bin_symlink(postfix_map_t) +corecmd_read_bin_file(postfix_map_t) +corecmd_read_bin_pipe(postfix_map_t) +corecmd_read_bin_socket(postfix_map_t) +corecmd_list_sbin(postfix_map_t) +corecmd_read_sbin_symlink(postfix_map_t) +corecmd_read_sbin_file(postfix_map_t) +corecmd_read_sbin_pipe(postfix_map_t) +corecmd_read_sbin_socket(postfix_map_t) + +files_list_home(postfix_map_t) +files_read_usr_files(postfix_map_t) +files_read_etc_files(postfix_map_t) +files_read_etc_runtime_files(postfix_map_t) +files_dontaudit_search_var(postfix_map_t) + +libs_use_ld_so(postfix_map_t) +libs_use_shared_libs(postfix_map_t) + +miscfiles_read_localization(postfix_map_t) + +seutil_read_config(postfix_map_t) + +sysnet_read_config(postfix_map_t) + +tunable_policy(`read_default_t',` + files_list_default(postfix_map_t) + files_read_default_files(postfix_map_t) + files_read_default_symlinks(postfix_map_t) + files_read_default_sockets(postfix_map_t) + files_read_default_pipes(postfix_map_t) +') + +optional_policy(`locallogin.te',` + locallogin_dontaudit_use_fd(postfix_map_t) +') + +# a "run" interface needs to be +# added, and have sysadm_t use it +# in a optional_policy block. + +######################################## +# +# Postfix pickup local policy +# + +allow postfix_pickup_t self:tcp_socket create_socket_perms; + +allow postfix_pickup_t postfix_master_t:unix_stream_socket connectto; + +allow postfix_pickup_t postfix_private_t:dir search; +allow postfix_pickup_t postfix_private_t:sock_file write; + +allow postfix_pickup_t postfix_public_t:fifo_file rw_file_perms; +allow postfix_pickup_t postfix_public_t:sock_file rw_file_perms; + +allow postfix_pickup_t postfix_spool_maildrop_t:dir rw_dir_perms; +allow postfix_pickup_t postfix_spool_maildrop_t:file r_file_perms; +allow postfix_pickup_t postfix_spool_maildrop_t:file unlink; + +######################################## +# +# Postfix pipe local policy +# + +allow postfix_pipe_t self:fifo_file { read write }; + +allow postfix_pipe_t postfix_private_t:dir search; +allow postfix_pipe_t postfix_private_t:sock_file write; + +allow postfix_pipe_t postfix_spool_t:dir search; +allow postfix_pipe_t postfix_spool_t:file rw_file_perms; + +ifdef(`TODO',` +optional_policy(`procmail.te', ` +domain_auto_trans(postfix_pipe_t, procmail_exec_t, procmail_t) +') +') dnl end TODO + +######################################## +# +# Postfix postdrop local policy +# + +# usually it does not need a UDP socket +allow postfix_postdrop_t self:capability sys_resource; +allow postfix_postdrop_t self:tcp_socket create; +allow postfix_postdrop_t self:udp_socket create_socket_perms; + +allow postfix_postdrop_t postfix_public_t:dir search; +allow postfix_postdrop_t postfix_public_t:fifo_file rw_file_perms; + +allow postfix_postdrop_t postfix_spool_maildrop_t:dir rw_dir_perms; +allow postfix_postdrop_t postfix_spool_maildrop_t:file create_file_perms; + +term_dontaudit_use_all_user_ptys(postfix_postdrop_t) +term_dontaudit_use_all_user_ttys(postfix_postdrop_t) + +sysnet_dontaudit_read_config(postfix_postdrop_t) + +mta_rw_user_mail_stream_socket(postfix_postdrop_t) + +optional_policy(`crond.te',` + cron_use_fd(postfix_postdrop_t) + cron_rw_pipe(postfix_postdrop_t) + cron_use_system_job_fd(postfix_postdrop_t) + cron_rw_system_job_pipe(postfix_postdrop_t) +') + +####################################### +# +# Postfix postqueue local policy +# + +allow postfix_postqueue_t self:tcp_socket create; +allow postfix_postqueue_t self:udp_socket { create ioctl }; + +# wants to write to /var/spool/postfix/public/showq +allow postfix_postqueue_t postfix_public_t:sock_file rw_file_perms; +allow postfix_postqueue_t postfix_master_t:unix_stream_socket connectto; + +allow postfix_postqueue_t postfix_public_t:dir search; +# write to /var/spool/postfix/public/qmgr +allow postfix_postqueue_t postfix_public_t:fifo_file { getattr write }; + +domain_auto_trans(postfix_master_t, postfix_postqueue_exec_t, postfix_postqueue_t) + +# to write the mailq output, it really should not need read access! +term_use_all_user_ptys(postfix_showq_t) +term_use_all_user_ttys(postfix_showq_t) + +init_sigchld_script(postfix_postqueue_t) +init_use_script_fd(postfix_postqueue_t) + +sysnet_dontaudit_read_config(postfix_postqueue_t) + +ifdef(`TODO',` +optional_policy(`gnome-pty-helper.te', `allow postfix_postqueue_t user_gph_t:fd use;') +') + +######################################## +# +# Postfix qmgr local policy +# + +allow postfix_qmgr_t postfix_master_t:unix_stream_socket connectto; + +allow postfix_qmgr_t postfix_private_t:dir search; +allow postfix_qmgr_t postfix_private_t:sock_file rw_file_perms; + +allow postfix_qmgr_t postfix_public_t:fifo_file rw_file_perms; +allow postfix_qmgr_t postfix_public_t:sock_file write; + +# for /var/spool/postfix/active +allow postfix_qmgr_t postfix_spool_t:dir create_dir_perms; +allow postfix_qmgr_t postfix_spool_t:file create_file_perms; +allow postfix_qmgr_t postfix_spool_t:lnk_file create_lnk_perms; + +allow postfix_qmgr_t postfix_spool_bounce_t:dir { getattr read search }; +allow postfix_qmgr_t postfix_spool_bounce_t:file { read getattr }; +allow postfix_qmgr_t postfix_spool_bounce_t:lnk_file { getattr read }; + +######################################## +# +# Postfix showq local policy +# + +allow postfix_showq_t self:capability { setuid setgid }; +allow postfix_showq_t self:tcp_socket create_socket_perms; + +domain_auto_trans(postfix_postqueue_t, postfix_showq_exec_t, postfix_showq_t) +# the following auto_trans is usually in postfix server domain +domain_auto_trans(postfix_master_t, postfix_showq_exec_t, postfix_showq_t) + +allow postfix_showq_t postfix_master_t:unix_stream_socket { accept rw_socket_perms }; + +allow postfix_showq_t postfix_spool_t:file r_file_perms; + +allow postfix_showq_t postfix_spool_maildrop_t:dir { getattr read search }; +allow postfix_showq_t postfix_spool_maildrop_t:file { read getattr }; +allow postfix_showq_t postfix_spool_maildrop_t:lnk_file { getattr read }; + +term_use_all_user_ptys(postfix_showq_t) +term_use_all_user_ttys(postfix_showq_t) + +sysnet_dns_name_resolve(postfix_showq_t) + +######################################## +# +# Postfix smtp delivery local policy +# + +# connect to master process +allow postfix_smtp_t postfix_master_t:unix_stream_socket connectto; +allow postfix_smtp_t { postfix_private_t postfix_public_t }:dir search; +allow postfix_smtp_t { postfix_private_t postfix_public_t }:sock_file write; + +allow postfix_smtp_t postfix_spool_t:file rw_file_perms; + +kernel_tcp_recvfrom(postfix_smtp_t) + +# if you have two different mail servers on the same host let them talk via +# SMTP, also if one mail server wants to talk to itself then allow it and let +# the SMTP protocol sort it out (SE Linux is not to prevent mail server +# misconfiguration) +mta_tcp_connect_all_mailservers(postfix_smtp_t) + +######################################## +# +# Postfix smtpd local policy +# +allow postfix_smtpd_t postfix_master_t:tcp_socket rw_stream_socket_perms; + +# connect to master process +allow postfix_smtpd_t postfix_master_t:unix_stream_socket connectto; +allow postfix_smtpd_t { postfix_private_t postfix_public_t }:dir search; +allow postfix_smtpd_t { postfix_private_t postfix_public_t }:sock_file rw_file_perms; + +# for prng_exch +allow postfix_smtpd_t postfix_spool_t:file rw_file_perms; +allow { postfix_smtp_t postfix_smtpd_t } postfix_prng_t:file rw_file_perms; + +# for OpenSSL certificates +files_read_usr_files(postfix_smtpd_t) +mta_read_aliases(postfix_smtpd_t) + +optional_policy(`sasl.te',` + sasl_connect(postfix_smtpd_t) +') diff --git a/refpolicy/policy/modules/services/ppp.te b/refpolicy/policy/modules/services/ppp.te index c410f18..c7a80b8 100644 --- a/refpolicy/policy/modules/services/ppp.te +++ b/refpolicy/policy/modules/services/ppp.te @@ -176,6 +176,20 @@ ifdef(`targeted_policy', ` term_dontaudit_use_unallocated_tty(pppd_t) term_dontaudit_use_generic_pty(pppd_t) files_dontaudit_read_root_file(pppd_t) + + optional_policy(`postfix.te',` + gen_require(` + bool postfix_master_disable_transgre; + ') + + if(!postfix_master_disable_trans) { + postfix_domtrans_master(pppd_t) + } + ') +',` + optional_policy(`postfix.te',` + postfix_domtrans_master(pppd_t) + ') ') optional_policy(`modutils.te',` diff --git a/refpolicy/policy/modules/services/sendmail.te b/refpolicy/policy/modules/services/sendmail.te index 6356243..c25dd75 100644 --- a/refpolicy/policy/modules/services/sendmail.te +++ b/refpolicy/policy/modules/services/sendmail.te @@ -117,6 +117,11 @@ optional_policy(`nscd.te',` nscd_use_socket(sendmail_t) ') +optional_policy(`postfix.te',` + postfix_read_config(sendmail_t) + postfix_search_spool(sendmail_t) +') + optional_policy(`selinuxutil.te',` seutil_sigchld_newrole(sendmail_t) ') diff --git a/refpolicy/policy/modules/system/files.if b/refpolicy/policy/modules/system/files.if index 914fb0e..a306ffe 100644 --- a/refpolicy/policy/modules/system/files.if +++ b/refpolicy/policy/modules/system/files.if @@ -1907,6 +1907,22 @@ interface(`files_associate_tmp',` ######################################## ## +## Get the attributes of the tmp directory (/tmp). +## +## +## Domain allowed access. +## +# +interface(`files_getattr_tmp_dir',` + gen_require(` + type tmp_t; + ') + + allow $1 tmp_t:dir getattr; +') + +######################################## +## ## Do not audit attempts to get the ## attributes of the tmp directory (/tmp). ## diff --git a/refpolicy/policy/modules/system/init.if b/refpolicy/policy/modules/system/init.if index f9e5723..9bf1058 100644 --- a/refpolicy/policy/modules/system/init.if +++ b/refpolicy/policy/modules/system/init.if @@ -540,6 +540,22 @@ interface(`init_get_script_process_group',` ######################################## ## +## Send SIGCHLD signals to init scripts. +## +## +## The type of the process performing this action. +## +# +interface(`init_sigchld_script',` + gen_require(` + type initrc_t; + ') + + allow $1 initrc_t:process sigchld; +') + +######################################## +## ## Read and write init script unnamed pipes. ## ## diff --git a/refpolicy/policy/modules/system/init.te b/refpolicy/policy/modules/system/init.te index 40d390b..ae6c889 100644 --- a/refpolicy/policy/modules/system/init.te +++ b/refpolicy/policy/modules/system/init.te @@ -556,6 +556,10 @@ optional_policy(`postgresql.te',` postgresql_read_config(initrc_t) ') +optional_policy(`postfix.te',` + postfix_list_spool(initrc_t) +') + optional_policy(`quota.te',` quota_manage_flags(initrc_t) ') diff --git a/refpolicy/policy/modules/system/miscfiles.if b/refpolicy/policy/modules/system/miscfiles.if index 5c0f644..d8970e4 100644 --- a/refpolicy/policy/modules/system/miscfiles.if +++ b/refpolicy/policy/modules/system/miscfiles.if @@ -100,6 +100,22 @@ interface(`miscfiles_legacy_read_localization',` ######################################## ## +## Do not audit attempts to search man pages. +## +## +## Domain to not audit. +## +# +interface(`miscfiles_dontaudit_search_man_pages',` + gen_require(` + type man_t; + ') + + dontaudit $1 man_t:dir search; +') + +######################################## +## ## Read man pages ## ## diff --git a/refpolicy/policy/modules/system/sysnetwork.if b/refpolicy/policy/modules/system/sysnetwork.if index cf55822..42f145b 100644 --- a/refpolicy/policy/modules/system/sysnetwork.if +++ b/refpolicy/policy/modules/system/sysnetwork.if @@ -179,6 +179,22 @@ interface(`sysnet_read_config',` ####################################### ## +## Do not audit attempts to read network config files. +## +## +## Domain to not audit. +## +# +interface(`sysnet_dontaudit_read_config',` + gen_require(` + type net_conf_t; + ') + + dontaudit $1 net_conf_t:file r_file_perms; +') + +####################################### +## ## Create files in /etc with the type used for ## the network config files. ##