171 lines
3.8 KiB
Cheetah
171 lines
3.8 KiB
Cheetah
########################################
|
|
#
|
|
# Macros for switching between source policy
|
|
# and loadable policy module support
|
|
#
|
|
|
|
##############################
|
|
#
|
|
# For adding the module statement
|
|
#
|
|
define(`policy_module',`
|
|
ifndef(`self_contained_policy',`
|
|
module $1 $2;
|
|
|
|
require {
|
|
role system_r;
|
|
all_kernel_class_perms
|
|
}
|
|
')
|
|
')
|
|
|
|
##############################
|
|
#
|
|
# For use in interfaces, to optionally insert a require block
|
|
#
|
|
define(`gen_require',`
|
|
ifdef(`self_contained_policy',`
|
|
ifdef(`__in_optional_policy',`
|
|
require {
|
|
$1
|
|
} # end require
|
|
')
|
|
',`
|
|
require {
|
|
$1
|
|
} # end require
|
|
')
|
|
')
|
|
|
|
# helper function, since m4 wont expand macros
|
|
# if a line is a comment (#):
|
|
define(`policy_m4_comment',`
|
|
##### $2 depth: $1
|
|
')dnl
|
|
|
|
##############################
|
|
#
|
|
# In the future interfaces should be in loadable modules
|
|
#
|
|
# template(name,rules)
|
|
#
|
|
define(`template',` dnl
|
|
ifdef(`$1',`refpolicyerr(`duplicate definition of $1(). Original definition on '$1.) define(`__if_error')',`define(`$1',__line__)') dnl
|
|
`define(`$1',` dnl
|
|
define(`policy_temp',incr(policy_call_depth)) dnl
|
|
pushdef(`policy_call_depth',policy_temp) dnl
|
|
undefine(`policy_temp') dnl
|
|
policy_m4_comment(policy_call_depth,begin `$1'(dollarsstar)) dnl
|
|
$2 dnl
|
|
define(`policy_temp',decr(policy_call_depth)) dnl
|
|
pushdef(`policy_call_depth',policy_temp) dnl
|
|
undefine(`policy_temp') dnl
|
|
policy_m4_comment(policy_call_depth,end `$1'(dollarsstar)) dnl
|
|
'')
|
|
')
|
|
|
|
##############################
|
|
#
|
|
# In the future interfaces should be in loadable modules
|
|
#
|
|
# interface(name,rules)
|
|
#
|
|
define(`interface',` dnl
|
|
ifdef(`$1',`refpolicyerr(`duplicate definition of $1(). Original definition on '$1.) define(`__if_error')',`define(`$1',__line__)') dnl
|
|
`define(`$1',` dnl
|
|
define(`policy_temp',incr(policy_call_depth)) dnl
|
|
pushdef(`policy_call_depth',policy_temp) dnl
|
|
undefine(`policy_temp') dnl
|
|
policy_m4_comment(policy_call_depth,begin `$1'(dollarsstar)) dnl
|
|
$2
|
|
define(`policy_temp',decr(policy_call_depth)) dnl
|
|
pushdef(`policy_call_depth',policy_temp) dnl
|
|
undefine(`policy_temp') dnl
|
|
policy_m4_comment(policy_call_depth,end `$1'(dollarsstar)) dnl
|
|
'')
|
|
')
|
|
|
|
define(`policy_call_depth',0)
|
|
|
|
##############################
|
|
#
|
|
# Optional policy handling
|
|
#
|
|
define(`optional_policy',`
|
|
ifelse(regexp(`$1',`\W'),`-1',`
|
|
refpolicywarn(`deprecated use of module name ($1) as first parameter of optional_policy() block.')
|
|
optional_policy(shift($*))
|
|
',`
|
|
optional {`'pushdef(`__in_optional_policy')
|
|
$1
|
|
ifelse(`$2',`',`',`} else {
|
|
$2
|
|
')}`'popdef(`__in_optional_policy')`'ifndef(`__in_optional_policy',` # end optional')
|
|
')
|
|
')
|
|
|
|
##############################
|
|
#
|
|
# Determine if we should use the default
|
|
# tunable value as specified by the policy
|
|
# or if the override value should be used
|
|
#
|
|
define(`dflt_or_overr',`ifdef(`$1',$1,$2)')
|
|
|
|
##############################
|
|
#
|
|
# Extract booleans out of an expression.
|
|
# This needs to be reworked so expressions
|
|
# with parentheses can work.
|
|
|
|
define(`delcare_required_symbols',`
|
|
ifelse(regexp($1, `\w'), -1, `', `dnl
|
|
bool regexp($1, `\(\w+\)', `\1');
|
|
delcare_required_symbols(regexp($1, `\w+\(.*\)', `\1'))dnl
|
|
') dnl
|
|
')
|
|
|
|
##############################
|
|
#
|
|
# Tunable declaration
|
|
#
|
|
define(`gen_tunable',`
|
|
ifdef(`self_contained_policy',`
|
|
bool $1 dflt_or_overr(`$1'_conf,$2);
|
|
',`
|
|
# loadable module tunable
|
|
# declaration will go here
|
|
# instead of bool when
|
|
# loadable modules support
|
|
# tunables
|
|
bool $1 dflt_or_overr(`$1'_conf,$2);
|
|
')
|
|
')
|
|
|
|
##############################
|
|
#
|
|
# Tunable policy handling
|
|
#
|
|
define(`tunable_policy',`
|
|
ifdef(`self_contained_policy',`
|
|
if (`$1') {
|
|
$2
|
|
ifelse(`$3',`',`',`} else {
|
|
$3
|
|
')}
|
|
',`
|
|
# structure for tunables
|
|
# will go here instead of a
|
|
# conditional when loadable
|
|
# modules support tunables
|
|
gen_require(`
|
|
delcare_required_symbols(`$1')
|
|
')
|
|
if (`$1') {
|
|
$2
|
|
ifelse(`$3',`',`',`} else {
|
|
$3
|
|
')}
|
|
')
|
|
')
|