From: Alexandru Ardelean <ardeleanalex@gmail.com>
Date: Thu, 2 Apr 2015 07:40:13 +0000 (+0300)
Subject: daemon/protocols/lldp.c: do not send system capabilities if none available
X-Git-Tag: 0.7.15~45^2~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7d67839872b367839e5b85853e09a0ecf5776c96;p=thirdparty%2Flldpd.git

daemon/protocols/lldp.c: do not send system capabilities if none available

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
---

diff --git a/src/daemon/protocols/lldp.c b/src/daemon/protocols/lldp.c
index 0d68e5de..108a3f73 100644
--- a/src/daemon/protocols/lldp.c
+++ b/src/daemon/protocols/lldp.c
@@ -146,12 +146,14 @@ static int _lldp_send(struct lldpd *global,
 	}
 
 	/* System capabilities */
-	if (!(
-	      POKE_START_LLDP_TLV(LLDP_TLV_SYSTEM_CAP) &&
-	      POKE_UINT16(chassis->c_cap_available) &&
-	      POKE_UINT16(chassis->c_cap_enabled) &&
-	      POKE_END_LLDP_TLV))
-		goto toobig;
+	if (chassis->c_cap_available) {
+		if (!(
+			    POKE_START_LLDP_TLV(LLDP_TLV_SYSTEM_CAP) &&
+			    POKE_UINT16(chassis->c_cap_available) &&
+			    POKE_UINT16(chassis->c_cap_enabled) &&
+			    POKE_END_LLDP_TLV))
+			goto toobig;
+	}
 
 	/* Management addresses */
 	TAILQ_FOREACH(mgmt, &chassis->c_mgmt, m_entries) {