#DESC Checkpolicy - SELinux policy compliler
#
# Authors:  Frank Mayer, mayerf@tresys.com
# X-Debian-Packages: checkpolicy
#

###########################
# 
# checkpolicy_t is the domain type for checkpolicy
# checkpolicy_exec_t if file type for the executable

type checkpolicy_t, domain;
role sysadm_r types checkpolicy_t;
role system_r types checkpolicy_t;

type checkpolicy_exec_t, file_type, exec_type, sysadmfile;

##########################
# 
# Rules

domain_auto_trans(sysadm_t, checkpolicy_exec_t, checkpolicy_t)

# able to create and modify binary policy files
allow checkpolicy_t policy_config_t:dir rw_dir_perms;
allow checkpolicy_t policy_config_t:file create_file_perms;

###########################
# constrain what checkpolicy can use as source files
#

# only allow read of policy source files
allow checkpolicy_t policy_src_t:dir r_dir_perms;
allow checkpolicy_t policy_src_t:{ file lnk_file } r_file_perms;

# allow test policies to be created in src directories
file_type_auto_trans(checkpolicy_t, policy_src_t, policy_config_t, file)

# directory search permissions for path to source and binary policy files
allow checkpolicy_t root_t:dir search;
allow checkpolicy_t etc_t:dir search;

# Read the devpts root directory.  
allow checkpolicy_t devpts_t:dir r_dir_perms;
ifdef(`sshd.te',
`allow checkpolicy_t sshd_devpts_t:dir r_dir_perms;')

# Other access
allow checkpolicy_t { initrc_devpts_t admin_tty_type devtty_t }:chr_file { read write ioctl getattr };
uses_shlib(checkpolicy_t)
allow checkpolicy_t self:capability dac_override;

##########################
# Allow users to execute checkpolicy without a domain transition
# so it can be used without privilege to write real binary policy file
can_exec(unpriv_userdomain, checkpolicy_exec_t)

allow checkpolicy_t { userdomain privfd }:fd use;

allow checkpolicy_t fs_t:filesystem getattr;
allow checkpolicy_t console_device_t:chr_file { read write };
allow checkpolicy_t init_t:fd use;
allow checkpolicy_t selinux_config_t:dir search;