policy_module(certbot)

## <desc>
##	<p>
##	Determine whether additional rules
##	should be enabled to support acme.sh
##	</p>
## </desc>
gen_tunable(certbot_acmesh, false)

########################################
#
# Declarations
#

type certbot_t;
type certbot_exec_t;
init_daemon_domain(certbot_t, certbot_exec_t)

type certbot_log_t;
logging_log_file(certbot_log_t)

type certbot_runtime_t;
files_runtime_file(certbot_runtime_t)

type certbot_tmp_t;
files_tmp_file(certbot_tmp_t)

type certbot_tmpfs_t;
files_tmpfs_file(certbot_tmpfs_t)

type certbot_lib_t;
files_type(certbot_lib_t)

########################################
#
# Local policy
#

allow certbot_t self:fifo_file rw_inherited_fifo_file_perms;
allow certbot_t self:capability { chown dac_override sys_resource };
allow certbot_t self:udp_socket all_udp_socket_perms;
allow certbot_t self:tcp_socket all_tcp_socket_perms;
allow certbot_t self:netlink_route_socket create_netlink_socket_perms;

files_var_lib_filetrans(certbot_t, certbot_lib_t, dir)
manage_dirs_pattern(certbot_t, certbot_lib_t, certbot_lib_t)
manage_files_pattern(certbot_t, certbot_lib_t, certbot_lib_t)

manage_dirs_pattern(certbot_t, certbot_tmp_t, certbot_tmp_t)
manage_files_pattern(certbot_t, certbot_tmp_t, certbot_tmp_t)
files_tmp_filetrans(certbot_t, certbot_tmp_t, { dir file })

manage_files_pattern(certbot_t, certbot_tmpfs_t, certbot_tmpfs_t)
fs_tmpfs_filetrans(certbot_t, certbot_tmpfs_t, { file })

# this is for certbot to have write-exec memory, I know it is bad
# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=913544
# the Debian bug report has background about python-acme and python3-openssl
allow certbot_t self:process execmem;
allow certbot_t certbot_tmp_t:file mmap_exec_file_perms;
allow certbot_t certbot_tmpfs_t:file mmap_exec_file_perms;
allow certbot_t certbot_runtime_t:file mmap_exec_file_perms;

logging_log_filetrans(certbot_t, certbot_log_t, dir)
allow certbot_t certbot_log_t:dir manage_dir_perms;
allow certbot_t certbot_log_t:file manage_file_perms;

manage_files_pattern(certbot_t, certbot_runtime_t, certbot_runtime_t)
files_runtime_filetrans(certbot_t, certbot_runtime_t, file)

kernel_dontaudit_read_system_state(certbot_t)
kernel_search_fs_sysctls(certbot_t)

corecmd_list_bin(certbot_t)
corecmd_mmap_bin_files(certbot_t)

corenet_tcp_bind_generic_node(certbot_t)
corenet_tcp_connect_http_port(certbot_t)
corenet_tcp_connect_dns_port(certbot_t)
# bind to http port for standalone mode
corenet_tcp_bind_http_port(certbot_t)

dev_read_urand(certbot_t)

domain_use_interactive_fds(certbot_t)

files_read_etc_files(certbot_t)
files_read_usr_files(certbot_t)

# dontaudit for attempts to write python cache files
libs_dontaudit_write_lib_dirs(certbot_t)
libs_exec_ldconfig(certbot_t)
# for /usr/lib/gcc/x86_64-linux-gnu/8/collect2
libs_exec_lib_files(certbot_t)

miscfiles_read_localization(certbot_t)

miscfiles_read_generic_certs(certbot_t)
miscfiles_manage_generic_tls_privkey_dirs(certbot_t)
miscfiles_manage_generic_tls_privkey_files(certbot_t)
miscfiles_manage_generic_tls_privkey_symlinks(certbot_t)

sysnet_read_config(certbot_t)

userdom_dontaudit_search_user_home_dirs(certbot_t)
userdom_use_user_ptys(certbot_t)

tunable_policy(`certbot_acmesh',`
	corecmd_exec_bin(certbot_t)
	corecmd_exec_shell(certbot_t)

	logging_send_syslog_msg(certbot_t)
')

optional_policy(`
	# for writing to webroot
	apache_manage_sys_content(certbot_t)

	apache_append_log(certbot_t)
	apache_exec(certbot_t)
	apache_exec_modules(certbot_t)

	# for certbot to create nginx config
	apache_manage_config(certbot_t)

	apache_rw_runtime_files(certbot_t)
	apache_signal(certbot_t)
')

optional_policy(`
	xdg_search_config_dirs(certbot_t)
')