f99b6907f4
Fixes:
avc: denied { read } for pid=77 comm="systemd-resolve" name="dbus"
dev="tmpfs" ino=2748 scontext=system_u:system_r:systemd_resolved_t
tcontext=system_u:object_r:system_dbusd_runtime_t tclass=dir
permissive=1
avc: denied { read } for pid=77 comm="systemd-resolve"
name="system_bus_socket" dev="tmpfs" ino=2765
scontext=system_u:system_r:systemd_resolved_t
tcontext=system_u:object_r:system_dbusd_runtime_t tclass=sock_file
permissive=1
avc: denied { read } for pid=59 comm="systemd-network" name="dbus"
dev="tmpfs" ino=2777 scontext=system_u:system_r:systemd_networkd_t
tcontext=system_u:object_r:system_dbusd_runtime_t tclass=dir
permissive=1
avc: denied { read } for pid=59 comm="systemd-network"
name="system_bus_socket" dev="tmpfs" ino=2791
scontext=system_u:system_r:systemd_networkd_t
tcontext=system_u:object_r:system_dbusd_runtime_t tclass=sock_file
permissive=1
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
670 lines
14 KiB
Plaintext
670 lines
14 KiB
Plaintext
## <summary>Desktop messaging bus.</summary>
|
|
|
|
########################################
|
|
## <summary>
|
|
## DBUS stub interface. No access allowed.
|
|
## </summary>
|
|
## <param name="domain" unused="true">
|
|
## <summary>
|
|
## Domain allowed access
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_stub',`
|
|
gen_require(`
|
|
type system_dbusd_t;
|
|
class dbus all_dbus_perms;
|
|
')
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Execute dbus in the caller domain.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_exec',`
|
|
gen_require(`
|
|
type dbusd_exec_t;
|
|
')
|
|
|
|
corecmd_search_bin($1)
|
|
can_exec($1, dbusd_exec_t)
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Role access for dbus.
|
|
## </summary>
|
|
## <param name="role_prefix">
|
|
## <summary>
|
|
## The prefix of the user role (e.g., user
|
|
## is the prefix for user_r).
|
|
## </summary>
|
|
## </param>
|
|
## <param name="role">
|
|
## <summary>
|
|
## Role allowed access
|
|
## </summary>
|
|
## </param>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## User domain for the role
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
template(`dbus_role_template',`
|
|
gen_require(`
|
|
class dbus { send_msg acquire_svc };
|
|
attribute session_bus_type;
|
|
type system_dbusd_t, dbusd_exec_t;
|
|
type session_dbusd_tmp_t, session_dbusd_home_t;
|
|
')
|
|
|
|
##############################
|
|
#
|
|
# Declarations
|
|
#
|
|
|
|
type $1_dbusd_t, session_bus_type;
|
|
domain_type($1_dbusd_t)
|
|
domain_entry_file($1_dbusd_t, dbusd_exec_t)
|
|
ubac_constrained($1_dbusd_t)
|
|
|
|
role $2 types $1_dbusd_t;
|
|
|
|
##############################
|
|
#
|
|
# Local policy
|
|
#
|
|
|
|
allow $3 $1_dbusd_t:unix_stream_socket connectto;
|
|
allow $3 $1_dbusd_t:dbus { send_msg acquire_svc };
|
|
allow $3 $1_dbusd_t:fd use;
|
|
|
|
allow $3 system_dbusd_t:dbus { send_msg acquire_svc };
|
|
|
|
allow $3 { session_dbusd_home_t session_dbusd_tmp_t }:dir { manage_dir_perms relabel_dir_perms };
|
|
allow $3 { session_dbusd_home_t session_dbusd_tmp_t }:file { manage_file_perms relabel_file_perms };
|
|
userdom_user_home_dir_filetrans($3, session_dbusd_home_t, dir, ".dbus")
|
|
|
|
domtrans_pattern($3, dbusd_exec_t, $1_dbusd_t)
|
|
|
|
ps_process_pattern($3, $1_dbusd_t)
|
|
allow $3 $1_dbusd_t:process { ptrace signal_perms };
|
|
|
|
allow $1_dbusd_t $3:process sigkill;
|
|
|
|
corecmd_bin_domtrans($1_dbusd_t, $3)
|
|
corecmd_shell_domtrans($1_dbusd_t, $3)
|
|
|
|
auth_use_nsswitch($1_dbusd_t)
|
|
|
|
ifdef(`hide_broken_symptoms',`
|
|
dontaudit $3 $1_dbusd_t:netlink_selinux_socket { read write };
|
|
')
|
|
|
|
optional_policy(`
|
|
systemd_read_logind_runtime_files($1_dbusd_t)
|
|
')
|
|
')
|
|
|
|
#######################################
|
|
## <summary>
|
|
## Template for creating connections to
|
|
## the system bus.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_system_bus_client',`
|
|
gen_require(`
|
|
attribute dbusd_system_bus_client;
|
|
type system_dbusd_t, system_dbusd_runtime_t, system_dbusd_var_lib_t;
|
|
class dbus send_msg;
|
|
')
|
|
|
|
typeattribute $1 dbusd_system_bus_client;
|
|
|
|
allow $1 { system_dbusd_t self }:dbus send_msg;
|
|
allow system_dbusd_t $1:dbus send_msg;
|
|
|
|
files_search_var_lib($1)
|
|
read_files_pattern($1, system_dbusd_var_lib_t, system_dbusd_var_lib_t)
|
|
|
|
files_search_runtime($1)
|
|
stream_connect_pattern($1, system_dbusd_runtime_t, system_dbusd_runtime_t, system_dbusd_t)
|
|
|
|
dbus_read_config($1)
|
|
dbus_list_system_bus_runtime($1)
|
|
dbus_read_system_bus_runtime_named_sockets($1)
|
|
')
|
|
|
|
#######################################
|
|
## <summary>
|
|
## Acquire service on all DBUS
|
|
## session busses.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_connect_all_session_bus',`
|
|
gen_require(`
|
|
attribute session_bus_type;
|
|
class dbus acquire_svc;
|
|
')
|
|
|
|
allow $1 session_bus_type:dbus acquire_svc;
|
|
')
|
|
|
|
#######################################
|
|
## <summary>
|
|
## Acquire service on specified
|
|
## DBUS session bus.
|
|
## </summary>
|
|
## <param name="role_prefix">
|
|
## <summary>
|
|
## The prefix of the user role (e.g., user
|
|
## is the prefix for user_r).
|
|
## </summary>
|
|
## </param>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_connect_spec_session_bus',`
|
|
gen_require(`
|
|
type $1_dbusd_t;
|
|
class dbus acquire_svc;
|
|
')
|
|
|
|
allow $2 $1_dbusd_t:dbus acquire_svc;
|
|
')
|
|
|
|
#######################################
|
|
## <summary>
|
|
## Creating connections to all
|
|
## DBUS session busses.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_all_session_bus_client',`
|
|
gen_require(`
|
|
attribute session_bus_type, dbusd_session_bus_client;
|
|
class dbus send_msg;
|
|
')
|
|
|
|
typeattribute $1 dbusd_session_bus_client;
|
|
|
|
allow $1 { session_bus_type self }:dbus send_msg;
|
|
allow session_bus_type $1:dbus send_msg;
|
|
|
|
allow $1 session_bus_type:unix_stream_socket connectto;
|
|
allow $1 session_bus_type:fd use;
|
|
')
|
|
|
|
#######################################
|
|
## <summary>
|
|
## Creating connections to specified
|
|
## DBUS session bus.
|
|
## </summary>
|
|
## <param name="role_prefix">
|
|
## <summary>
|
|
## The prefix of the user role (e.g., user
|
|
## is the prefix for user_r).
|
|
## </summary>
|
|
## </param>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_spec_session_bus_client',`
|
|
gen_require(`
|
|
attribute dbusd_session_bus_client;
|
|
type $1_dbusd_t;
|
|
class dbus send_msg;
|
|
')
|
|
|
|
typeattribute $2 dbusd_session_bus_client;
|
|
|
|
allow $2 { $1_dbusd_t self }:dbus send_msg;
|
|
allow $1_dbusd_t $2:dbus send_msg;
|
|
|
|
allow $2 $1_dbusd_t:unix_stream_socket connectto;
|
|
allow $2 $1_dbusd_t:fd use;
|
|
')
|
|
|
|
#######################################
|
|
## <summary>
|
|
## Send messages to all DBUS
|
|
## session busses.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_send_all_session_bus',`
|
|
gen_require(`
|
|
attribute session_bus_type;
|
|
class dbus send_msg;
|
|
')
|
|
|
|
allow $1 session_bus_type:dbus send_msg;
|
|
')
|
|
|
|
#######################################
|
|
## <summary>
|
|
## Send messages to specified
|
|
## DBUS session busses.
|
|
## </summary>
|
|
## <param name="role_prefix">
|
|
## <summary>
|
|
## The prefix of the user role (e.g., user
|
|
## is the prefix for user_r).
|
|
## </summary>
|
|
## </param>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_send_spec_session_bus',`
|
|
gen_require(`
|
|
type $1_dbusd_t;
|
|
class dbus send_msg;
|
|
')
|
|
|
|
allow $2 $1_dbusd_t:dbus send_msg;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Read dbus configuration content.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_read_config',`
|
|
gen_require(`
|
|
type dbusd_etc_t;
|
|
')
|
|
|
|
allow $1 dbusd_etc_t:dir list_dir_perms;
|
|
allow $1 dbusd_etc_t:file read_file_perms;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Read system dbus lib files.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_read_lib_files',`
|
|
gen_require(`
|
|
type system_dbusd_var_lib_t;
|
|
')
|
|
|
|
files_search_var_lib($1)
|
|
read_files_pattern($1, system_dbusd_var_lib_t, system_dbusd_var_lib_t)
|
|
read_lnk_files_pattern($1, system_dbusd_var_lib_t, system_dbusd_var_lib_t)
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Relabel system dbus lib directory.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_relabel_lib_dirs',`
|
|
gen_require(`
|
|
type system_dbusd_var_lib_t;
|
|
')
|
|
|
|
files_search_var_lib($1)
|
|
allow $1 system_dbusd_var_lib_t:dir relabel_dir_perms;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Create, read, write, and delete
|
|
## system dbus lib files.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_manage_lib_files',`
|
|
gen_require(`
|
|
type system_dbusd_var_lib_t;
|
|
')
|
|
|
|
files_search_var_lib($1)
|
|
manage_files_pattern($1, system_dbusd_var_lib_t, system_dbusd_var_lib_t)
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Allow a application domain to be
|
|
## started by the specified session bus.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Type to be used as a domain.
|
|
## </summary>
|
|
## </param>
|
|
## <param name="entry_point">
|
|
## <summary>
|
|
## Type of the program to be used as an
|
|
## entry point to this domain.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_all_session_domain',`
|
|
gen_require(`
|
|
attribute session_bus_type;
|
|
')
|
|
|
|
domtrans_pattern(session_bus_type, $2, $1)
|
|
|
|
dbus_all_session_bus_client($1)
|
|
dbus_connect_all_session_bus($1)
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Allow a application domain to be
|
|
## started by the specified session bus.
|
|
## </summary>
|
|
## <param name="role_prefix">
|
|
## <summary>
|
|
## The prefix of the user role (e.g., user
|
|
## is the prefix for user_r).
|
|
## </summary>
|
|
## </param>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Type to be used as a domain.
|
|
## </summary>
|
|
## </param>
|
|
## <param name="entry_point">
|
|
## <summary>
|
|
## Type of the program to be used as an
|
|
## entry point to this domain.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_spec_session_domain',`
|
|
gen_require(`
|
|
type $1_dbusd_t;
|
|
')
|
|
|
|
domtrans_pattern($1_dbusd_t, $3, $2)
|
|
|
|
dbus_spec_session_bus_client($1, $2)
|
|
dbus_connect_spec_session_bus($1, $2)
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Acquire service on the DBUS system bus.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_connect_system_bus',`
|
|
gen_require(`
|
|
type system_dbusd_t;
|
|
class dbus acquire_svc;
|
|
')
|
|
|
|
allow $1 system_dbusd_t:dbus acquire_svc;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Send messages to the DBUS system bus.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_send_system_bus',`
|
|
gen_require(`
|
|
type system_dbusd_t;
|
|
class dbus send_msg;
|
|
')
|
|
|
|
allow $1 system_dbusd_t:dbus send_msg;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Unconfined access to DBUS system bus.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_system_bus_unconfined',`
|
|
gen_require(`
|
|
type system_dbusd_t;
|
|
class dbus { acquire_svc send_msg };
|
|
')
|
|
|
|
allow $1 system_dbusd_t:dbus { acquire_svc send_msg };
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Create a domain for processes which
|
|
## can be started by the DBUS system bus.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Type to be used as a domain.
|
|
## </summary>
|
|
## </param>
|
|
## <param name="entry_point">
|
|
## <summary>
|
|
## Type of the program to be used as an entry point to this domain.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_system_domain',`
|
|
gen_require(`
|
|
type system_dbusd_t;
|
|
role system_r;
|
|
')
|
|
|
|
domain_type($1)
|
|
domain_entry_file($1, $2)
|
|
|
|
role system_r types $1;
|
|
|
|
domtrans_pattern(system_dbusd_t, $2, $1)
|
|
|
|
dbus_system_bus_client($1)
|
|
dbus_connect_system_bus($1)
|
|
|
|
ps_process_pattern(system_dbusd_t, $1)
|
|
|
|
userdom_read_all_users_state($1)
|
|
|
|
ifdef(`init_systemd',`
|
|
init_daemon_domain($1, $2)
|
|
')
|
|
|
|
ifdef(`hide_broken_symptoms', `
|
|
dontaudit $1 system_dbusd_t:netlink_selinux_socket { read write };
|
|
')
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Use and inherit DBUS system bus
|
|
## file descriptors.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_use_system_bus_fds',`
|
|
gen_require(`
|
|
type system_dbusd_t;
|
|
')
|
|
|
|
allow $1 system_dbusd_t:fd use;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Do not audit attempts to read and
|
|
## write DBUS system bus TCP sockets.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain to not audit.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_dontaudit_system_bus_rw_tcp_sockets',`
|
|
gen_require(`
|
|
type system_dbusd_t;
|
|
')
|
|
|
|
dontaudit $1 system_dbusd_t:tcp_socket { read write };
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Watch system bus runtime directories.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_watch_system_bus_runtime_dirs',`
|
|
gen_require(`
|
|
type system_dbusd_runtime_t;
|
|
')
|
|
|
|
allow $1 system_dbusd_runtime_t:dir watch;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## List system bus runtime directories.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_list_system_bus_runtime',`
|
|
gen_require(`
|
|
type system_dbusd_runtime_t;
|
|
')
|
|
|
|
allow $1 system_dbusd_runtime_t:dir list_dir_perms;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Watch system bus runtime named sockets.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_watch_system_bus_runtime_named_sockets',`
|
|
gen_require(`
|
|
type system_dbusd_runtime_t;
|
|
')
|
|
|
|
allow $1 system_dbusd_runtime_t:sock_file watch;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Read system bus runtime named sockets.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_read_system_bus_runtime_named_sockets',`
|
|
gen_require(`
|
|
type system_dbusd_runtime_t;
|
|
')
|
|
|
|
allow $1 system_dbusd_runtime_t:sock_file read;
|
|
')
|
|
|
|
########################################
|
|
## <summary>
|
|
## Unconfined access to DBUS.
|
|
## </summary>
|
|
## <param name="domain">
|
|
## <summary>
|
|
## Domain allowed access.
|
|
## </summary>
|
|
## </param>
|
|
#
|
|
interface(`dbus_unconfined',`
|
|
gen_require(`
|
|
attribute dbusd_unconfined;
|
|
')
|
|
|
|
typeattribute $1 dbusd_unconfined;
|
|
')
|