policy_module(dbus, 1.11.0)

gen_require(`
	class dbus all_dbus_perms;
')

##############################
#
# Delcarations
#

attribute dbusd_unconfined;
attribute session_bus_type;

type dbusd_etc_t;
files_config_file(dbusd_etc_t)

type dbusd_exec_t;
corecmd_executable_file(dbusd_exec_t)
typealias dbusd_exec_t alias system_dbusd_exec_t;

type session_dbusd_tmp_t;
typealias session_dbusd_tmp_t alias { user_dbusd_tmp_t staff_dbusd_tmp_t sysadm_dbusd_tmp_t };
typealias session_dbusd_tmp_t alias { auditadm_dbusd_tmp_t secadm_dbusd_tmp_t };
files_tmp_file(session_dbusd_tmp_t)
ubac_constrained(session_dbusd_tmp_t)

type system_dbusd_t;
init_system_domain(system_dbusd_t, dbusd_exec_t)

type system_dbusd_tmp_t;
files_tmp_file(system_dbusd_tmp_t)

type system_dbusd_var_lib_t;
files_type(system_dbusd_var_lib_t)

type system_dbusd_var_run_t;
files_pid_file(system_dbusd_var_run_t)

ifdef(`enable_mcs',`
	init_ranged_system_domain(system_dbusd_t, dbusd_exec_t, s0 - mcs_systemhigh)
')

ifdef(`enable_mls',`
	init_ranged_system_domain(system_dbusd_t, dbusd_exec_t, s0 - mls_systemhigh)
')

##############################
#
# System bus local policy
#

# dac_override: /var/run/dbus is owned by messagebus on Debian
# cjp: dac_override should probably go in a distro_debian
allow system_dbusd_t self:capability { dac_override setgid setpcap setuid };
dontaudit system_dbusd_t self:capability sys_tty_config;
allow system_dbusd_t self:process { getattr getsched signal_perms setpgid getcap setcap };
allow system_dbusd_t self:fifo_file rw_fifo_file_perms;
allow system_dbusd_t self:dbus { send_msg acquire_svc };
allow system_dbusd_t self:unix_stream_socket { connectto create_stream_socket_perms connectto };
allow system_dbusd_t self:unix_dgram_socket create_socket_perms;
# Receive notifications of policy reloads and enforcing status changes.
allow system_dbusd_t self:netlink_selinux_socket { create bind read };

can_exec(system_dbusd_t, dbusd_exec_t)

allow system_dbusd_t dbusd_etc_t:dir list_dir_perms;
read_files_pattern(system_dbusd_t, dbusd_etc_t, dbusd_etc_t)
read_lnk_files_pattern(system_dbusd_t, dbusd_etc_t, dbusd_etc_t)

manage_dirs_pattern(system_dbusd_t, system_dbusd_tmp_t, system_dbusd_tmp_t)
manage_files_pattern(system_dbusd_t, system_dbusd_tmp_t, system_dbusd_tmp_t)
files_tmp_filetrans(system_dbusd_t, system_dbusd_tmp_t, { file dir })

read_files_pattern(system_dbusd_t, system_dbusd_var_lib_t, system_dbusd_var_lib_t)

manage_files_pattern(system_dbusd_t, system_dbusd_var_run_t, system_dbusd_var_run_t)
manage_sock_files_pattern(system_dbusd_t, system_dbusd_var_run_t, system_dbusd_var_run_t)
files_pid_filetrans(system_dbusd_t, system_dbusd_var_run_t, file)

kernel_read_system_state(system_dbusd_t)
kernel_read_kernel_sysctls(system_dbusd_t)

dev_read_urand(system_dbusd_t)
dev_read_sysfs(system_dbusd_t)

fs_getattr_all_fs(system_dbusd_t)
fs_search_auto_mountpoints(system_dbusd_t)
fs_dontaudit_list_nfs(system_dbusd_t)

mls_fd_use_all_levels(system_dbusd_t)
mls_rangetrans_target(system_dbusd_t)
mls_file_read_all_levels(system_dbusd_t)
mls_socket_write_all_levels(system_dbusd_t)
mls_socket_read_to_clearance(system_dbusd_t)
mls_dbus_recv_all_levels(system_dbusd_t)

selinux_get_fs_mount(system_dbusd_t)
selinux_validate_context(system_dbusd_t)
selinux_compute_access_vector(system_dbusd_t)
selinux_compute_create_context(system_dbusd_t)
selinux_compute_relabel_context(system_dbusd_t)
selinux_compute_user_contexts(system_dbusd_t)

term_dontaudit_use_console(system_dbusd_t)

auth_use_nsswitch(system_dbusd_t)
auth_read_pam_console_data(system_dbusd_t)

corecmd_list_bin(system_dbusd_t)
corecmd_read_bin_pipes(system_dbusd_t)
corecmd_read_bin_sockets(system_dbusd_t)

domain_use_interactive_fds(system_dbusd_t)
domain_read_all_domains_state(system_dbusd_t)

files_read_etc_files(system_dbusd_t)
files_list_home(system_dbusd_t)
files_read_usr_files(system_dbusd_t)

init_use_fds(system_dbusd_t)
init_use_script_ptys(system_dbusd_t)

logging_send_audit_msgs(system_dbusd_t)
logging_send_syslog_msg(system_dbusd_t)

miscfiles_read_localization(system_dbusd_t)
miscfiles_read_certs(system_dbusd_t)

seutil_read_config(system_dbusd_t)
seutil_read_default_contexts(system_dbusd_t)
seutil_sigchld_newrole(system_dbusd_t)

userdom_dontaudit_use_unpriv_user_fds(system_dbusd_t)
userdom_dontaudit_search_user_home_dirs(system_dbusd_t)

optional_policy(`
	bind_domtrans(system_dbusd_t)
')

optional_policy(`
	policykit_domtrans_auth(system_dbusd_t)
	policykit_search_lib(system_dbusd_t)
')

optional_policy(`
	sysnet_domtrans_dhcpc(system_dbusd_t)
')

optional_policy(`
	udev_read_db(system_dbusd_t)
')

########################################
#
# Unconfined access to this module
#

allow dbusd_unconfined session_bus_type:dbus all_dbus_perms;