policy_module(knot)

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

attribute_role knot_roles;

type knotd_t;
type knotd_exec_t;
init_daemon_domain(knotd_t, knotd_exec_t)

type knotc_t;
type knotc_exec_t;
application_domain(knotc_t, knotc_exec_t)
init_system_domain(knotc_t, knotc_exec_t)
role knot_roles types knotc_t;

type knot_conf_t;
files_config_file(knot_conf_t)

type knot_initrc_exec_t;
init_script_file(knot_initrc_exec_t)

type knot_runtime_t;
files_runtime_file(knot_runtime_t)

type knot_tmp_t;
files_tmp_file(knot_tmp_t)

type knot_var_lib_t;
files_type(knot_var_lib_t)

########################################
#
# knotd local policy
#

allow knotd_t self:capability { dac_override dac_read_search setgid setpcap setuid };
allow knotd_t self:process { signal_perms getcap getsched setsched };
allow knotd_t self:tcp_socket create_stream_socket_perms;
allow knotd_t self:udp_socket create_socket_perms;
allow knotd_t self:unix_stream_socket create_stream_socket_perms;

allow knotd_t knot_conf_t:file map;
knot_read_config_files(knotd_t)

corenet_tcp_bind_generic_node(knotd_t)
corenet_udp_bind_generic_node(knotd_t)
corenet_sendrecv_dns_server_packets(knotd_t)
corenet_tcp_bind_dns_port(knotd_t)
corenet_udp_bind_dns_port(knotd_t)
# Slave replication
corenet_tcp_connect_dns_port(knotd_t)

manage_dirs_pattern(knotd_t, knot_runtime_t, knot_runtime_t)
manage_files_pattern(knotd_t, knot_runtime_t, knot_runtime_t)
manage_lnk_files_pattern(knotd_t, knot_runtime_t, knot_runtime_t)
manage_sock_files_pattern(knotd_t, knot_runtime_t, knot_runtime_t)
files_runtime_filetrans(knotd_t, knot_runtime_t, dir)

allow knotd_t knot_tmp_t:file map;
allow knotd_t knot_tmp_t:file manage_file_perms;
allow knotd_t knot_tmp_t:dir manage_dir_perms;
files_tmp_filetrans(knotd_t, knot_tmp_t, { file dir })

allow knotd_t knot_var_lib_t:file map;
manage_dirs_pattern(knotd_t, knot_var_lib_t, knot_var_lib_t)
manage_files_pattern(knotd_t, knot_var_lib_t, knot_var_lib_t)
manage_lnk_files_pattern(knotd_t, knot_var_lib_t, knot_var_lib_t)
files_var_lib_filetrans(knotd_t, knot_var_lib_t, dir)

kernel_read_kernel_sysctls(knotd_t)

files_map_etc_files(knotd_t)
files_search_var_lib(knotd_t)

fs_getattr_xattr_fs(knotd_t)
fs_getattr_tmpfs(knotd_t)

auth_use_nsswitch(knotd_t)

logging_send_syslog_msg(knotd_t)

miscfiles_read_localization(knotd_t)

########################################
#
# knotc local policy
#

allow knotc_t self:capability { dac_override dac_read_search };
allow knotc_t self:process signal;

stream_connect_pattern(knotc_t, knot_runtime_t, knot_runtime_t, knotd_t)

allow knotc_t knot_conf_t:file map;
knot_read_config_files(knotc_t)

allow knotc_t knot_tmp_t:file map;
allow knotc_t knot_tmp_t:file manage_file_perms;
allow knotc_t knot_tmp_t:dir manage_dir_perms;
files_tmp_filetrans(knotc_t, knot_tmp_t, { file dir })

allow knotc_t knot_var_lib_t:file map;
manage_dirs_pattern(knotc_t, knot_var_lib_t, knot_var_lib_t)
manage_files_pattern(knotc_t, knot_var_lib_t, knot_var_lib_t)
manage_lnk_files_pattern(knotc_t, knot_var_lib_t, knot_var_lib_t)

domain_use_interactive_fds(knotc_t)

files_read_etc_files(knotc_t)
files_search_runtime(knotc_t)
files_search_var_lib(knotc_t)

fs_getattr_tmpfs(knotc_t)

miscfiles_read_localization(knotc_t)

userdom_use_user_ptys(knotc_t)