policy_module(sendmail,1.0)

########################################

#

# Declarations

#

type sendmail_t;

mta_sendmail_mailserver(sendmail_t)

mta_mailserver_delivery(sendmail_t)

mta_mailserver_sender(sendmail_t)

type sendmail_log_t;

logging_log_file(sendmail_log_t)

type sendmail_tmp_t;

files_tmp_file(sendmail_tmp_t)

type sendmail_var_run_t;

files_pid_file(sendmail_var_run_t)

########################################

#

# Sendmail local policy

#

allow sendmail_t self:capability { setuid setgid net_bind_service sys_nice chown sys_tty_config };

allow sendmail_t self:fifo_file rw_file_perms;

allow sendmail_t self:unix_stream_socket create_stream_socket_perms;

allow sendmail_t self:unix_dgram_socket create_socket_perms;

allow sendmail_t sendmail_log_t:file create_file_perms;

allow sendmail_t sendmail_log_t:dir { rw_dir_perms setattr };

logging_create_log(sendmail_t,sendmail_log_t,{ file dir })

allow sendmail_t sendmail_tmp_t:dir create_dir_perms;

allow sendmail_t sendmail_tmp_t:file create_file_perms;

files_create_tmp_files(sendmail_t, sendmail_tmp_t, { file dir })

allow sendmail_t sendmail_var_run_t:file { getattr create read write append setattr unlink };

files_create_pid(sendmail_t,sendmail_var_run_t)

kernel_read_kernel_sysctl(sendmail_t)

# for piping mail to a command

kernel_read_system_state(sendmail_t)

corenet_tcp_sendrecv_all_if(sendmail_t)

corenet_raw_sendrecv_all_if(sendmail_t)

corenet_udp_sendrecv_all_if(sendmail_t)

corenet_tcp_sendrecv_all_nodes(sendmail_t)

corenet_raw_sendrecv_all_nodes(sendmail_t)

corenet_udp_sendrecv_all_nodes(sendmail_t)

corenet_tcp_sendrecv_all_ports(sendmail_t)

corenet_udp_sendrecv_all_ports(sendmail_t)

corenet_tcp_bind_all_nodes(sendmail_t)

corenet_udp_bind_all_nodes(sendmail_t)

corenet_tcp_bind_smtp_port(sendmail_t)

corenet_tcp_connect_all_ports(sendmail_t)

dev_read_urand(sendmail_t)

dev_read_sysfs(sendmail_t)

fs_getattr_all_fs(sendmail_t)

fs_search_auto_mountpoints(sendmail_t)

term_dontaudit_use_console(sendmail_t)

# for piping mail to a command

corecmd_exec_shell(sendmail_t)

domain_use_wide_inherit_fd(sendmail_t)

files_read_etc_files(sendmail_t)

files_search_spool(sendmail_t)

# for piping mail to a command

files_read_etc_runtime_files(sendmail_t)

init_use_fd(sendmail_t)

init_use_script_pty(sendmail_t)

# sendmail wants to read /var/run/utmp if the controlling tty is /dev/console

init_read_script_pid(sendmail_t)

init_dontaudit_write_script_pid(sendmail_t)

libs_use_ld_so(sendmail_t)

libs_use_shared_libs(sendmail_t)

# Read /usr/lib/sasl2/.*

libs_read_lib(sendmail_t)

logging_send_syslog_msg(sendmail_t)

miscfiles_read_localization(sendmail_t)

sysnet_read_config(sendmail_t)

userdom_dontaudit_use_unpriv_user_fd(sendmail_t)

userdom_dontaudit_search_sysadm_home_dir(sendmail_t)

# Write to /etc/aliases and /etc/mail.

mta_rw_aliases(sendmail_t)

# Write to /var/spool/mail and /var/spool/mqueue.

mta_manage_queue(sendmail_t)

mta_manage_spool(sendmail_t)

ifdef(`targeted_policy', `

	term_dontaudit_use_unallocated_tty(sendmail_t)

	term_dontaudit_use_generic_pty(sendmail_t)

	files_dontaudit_read_root_file(sendmail_t)

')

optional_policy(`nis.te',`

	nis_use_ypbind(sendmail_t)

')

optional_policy(`nscd.te',`

	nscd_use_socket(sendmail_t)

')

optional_policy(`selinuxutil.te',`

	seutil_sigchld_newrole(sendmail_t)

')

optional_policy(`udev.te', `

	udev_read_db(sendmail_t)

')

ifdef(`TODO',`

optional_policy(`rhgb.te', `

rhgb_domain(sendmail_t)

')

optional_policy(`arpwatch.te',`

	# why is mail delivered to a directory of type arpwatch_data_t?

	allow mta_delivery_agent arpwatch_data_t:dir search;

')

#

#  Need this transition to create /etc/aliases.db 

#

ifdef(`distro_redhat', `

ifdef(`rpm.te', `

domain_auto_trans(rpm_script_t, sendmail_exec_t, system_mail_t)

')

')

allow sendmail_t etc_mail_t:dir rw_dir_perms;

allow sendmail_t etc_mail_t:file create_file_perms;

# 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;

allow system_mail_t initrc_t:fd use;

allow system_mail_t initrc_t:fifo_file write;

# When sendmail runs as user_mail_domain, it needs some extra permissions

# to update /etc/mail/statistics.

allow user_mail_domain etc_mail_t:file rw_file_perms;

# Silently deny attempts to access /root.

dontaudit system_mail_t { staff_home_dir_t sysadm_home_dir_t}:dir { getattr search };

# Run procmail in its own domain, if defined.

ifdef(`procmail.te',`

corecmd_search_bin(sendmail_t)

procmail_domtrans(sendmail_t)

domain_auto_trans(system_mail_t, procmail_exec_t, procmail_t)

')

dontaudit sendmail_t admin_tty_type:chr_file { getattr ioctl };

') dnl end TODO