Similar to AS_TRANS (23456) AS 0 should not be allowed.
This adds this restriction for asnumbers which are used on AS, remote-as
and local-as tokens in the config. Inside filters as4numer_any is used
which does not have any kind of restriction.
OK?
--
:wq Claudio
? obj
Index: parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/bgpd/parse.y,v
retrieving revision 1.357
diff -u -p -r1.357 parse.y
--- parse.y 21 Sep 2018 05:13:35 -0000 1.357
+++ parse.y 21 Sep 2018 05:16:45 -0000
@@ -297,7 +297,7 @@ as4number : STRING {
free($1);
YYERROR;
}
- if (uvalh == 0 && uval == AS_TRANS) {
+ if (uvalh == 0 && (uval == AS_TRANS || uval == 0)) {
yyerror("AS %u is reserved and may not be used",
AS_TRANS);
YYERROR;
@@ -305,7 +305,7 @@ as4number : STRING {
$$ = uval | (uvalh << 16);
}
| asnumber {
- if ($1 == AS_TRANS) {
+ if ($1 == AS_TRANS || $1 == 0) {
yyerror("AS %u is reserved and may not be used",
AS_TRANS);
YYERROR;
