From: Lou Berger <lberger@labn.net>
Date: Wed, 19 Oct 2022 11:50:41 +0000 (+0000)
Subject: ospfd: allow for zero length opaque LSAs (which is permitted per RFC 5250)
X-Git-Tag: base_8.5~322^2~2
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=0b91fce78b0bcd601e1c9eff44dbac1e847038cc;p=matthieu%2Ffrr.git

ospfd: allow for zero length opaque LSAs (which is permitted per RFC 5250)

Signed-off-by: Lou Berger <lberger@labn.net>
---

diff --git a/ospfd/ospf_opaque.h b/ospfd/ospf_opaque.h
index 9c76877908..05fe6deac0 100644
--- a/ospfd/ospf_opaque.h
+++ b/ospfd/ospf_opaque.h
@@ -77,7 +77,7 @@
 
 #define OPAQUE_TYPE_RANGE_RESERVED(type) (127 < (type) && (type) <= 255)
 
-#define OSPF_OPAQUE_LSA_MIN_SIZE 4U
+#define OSPF_OPAQUE_LSA_MIN_SIZE 0 /* RFC5250 imposes no minimum */
 
 #define VALID_OPAQUE_INFO_LEN(lsahdr)                                          \
 	((ntohs((lsahdr)->length) >= sizeof(struct lsa_header))                \