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-rw-r--r--filter/config.Y3
-rw-r--r--filter/filter.c10
2 files changed, 12 insertions, 1 deletions
diff --git a/filter/config.Y b/filter/config.Y
index 3e70a63e..6783ea10 100644
--- a/filter/config.Y
+++ b/filter/config.Y
@@ -278,7 +278,7 @@ CF_KEYWORDS(FUNCTION, PRINT, PRINTN, UNSET, RETURN,
TRUE, FALSE, RT, RO, UNKNOWN, GENERIC,
FROM, GW, NET, MASK, PROTO, SOURCE, SCOPE, CAST, DEST, IFNAME, IFINDEX,
PREFERENCE,
- ROA_CHECK,
+ ROA_CHECK, ASN,
LEN,
DEFINED,
ADD, DELETE, CONTAINS, RESET,
@@ -740,6 +740,7 @@ term:
| term '.' IP { $$ = f_new_inst(); $$->code = P('c','p'); $$->a1.p = $1; $$->aux = T_IP; }
| term '.' LEN { $$ = f_new_inst(); $$->code = 'L'; $$->a1.p = $1; }
+ | term '.' ASN { $$ = f_new_inst(); $$->code = P('R','a'); $$->a1.p = $1; }
| term '.' MASK '(' term ')' { $$ = f_new_inst(); $$->code = P('i','M'); $$->a1.p = $1; $$->a2.p = $5; }
| term '.' FIRST { $$ = f_new_inst(); $$->code = P('a','f'); $$->a1.p = $1; }
| term '.' LAST { $$ = f_new_inst(); $$->code = P('a','l'); $$->a1.p = $1; }
diff --git a/filter/filter.c b/filter/filter.c
index 47c5e63d..ba1ba753 100644
--- a/filter/filter.c
+++ b/filter/filter.c
@@ -1029,6 +1029,16 @@ interpret(struct f_inst *what)
default: runtime( "Prefix, path, clist or eclist expected" );
}
break;
+ case P('R','a'): /* Get ROA ASN */
+ ONEARG;
+ if (v1.type != T_NET || !net_is_roa(v1.val.net))
+ runtime( "ROA expected" );
+
+ res.type = T_INT;
+ res.val.i = (v1.val.net->type == NET_ROA4) ?
+ ((net_addr_roa4 *) v1.val.net)->asn :
+ ((net_addr_roa6 *) v1.val.net)->asn;
+ break;
case P('c','p'): /* Convert prefix to ... */
ONEARG;
if (v1.type != T_NET)