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sepolgen: parse gen_tunable as bool

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Currently sepolgen-ifgen parses a gen_tunable statement as interface
and reports in verbose mode:

    Missing interface definition for gen_tunable

Add grammar for gen_tunable statements in the refparser

Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Acked-by: Stephen Smalley <stephen.smalley.work@gmail.com>
This commit is contained in:
Christian Göttsche 2020-06-11 15:53:01 +02:00 committed by Petr Lautrbach
parent ddcd6d1b73
commit 5adc269f95
1 changed files with 14 additions and 0 deletions
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14
python/sepolgen/src/sepolgen/refparser.py
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@ -126,6 +126,7 @@ tokens = (
'GEN_REQ',
'TEMPLATE',
'GEN_CONTEXT',
'GEN_TUNABLE',
# m4
'IFELSE',
'IFDEF',
@ -192,6 +193,7 @@ reserved = {
'gen_require' : 'GEN_REQ',
'template' : 'TEMPLATE',
'gen_context' : 'GEN_CONTEXT',
'gen_tunable' : 'GEN_TUNABLE',
# M4
'ifelse' : 'IFELSE',
'ifndef' : 'IFNDEF',
@ -518,6 +520,7 @@ def p_policy_stmt(p):
| range_transition_def
| role_transition_def
| bool
| gen_tunable
| define
| initial_sid
| genfscon
@ -844,6 +847,17 @@ def p_bool(p):
b.state = False
p[0] = b
def p_gen_tunable(p):
'''gen_tunable : GEN_TUNABLE OPAREN TICK IDENTIFIER SQUOTE COMMA TRUE CPAREN
| GEN_TUNABLE OPAREN TICK IDENTIFIER SQUOTE COMMA FALSE CPAREN'''
b = refpolicy.Bool()
b.name = p[4]
if p[7] == "true":
b.state = True
else:
b.state = False
p[0] = b
def p_conditional(p):
''' conditional : IF OPAREN cond_expr CPAREN OBRACE interface_stmts CBRACE
| IF OPAREN cond_expr CPAREN OBRACE interface_stmts CBRACE ELSE OBRACE interface_stmts CBRACE