From: Justin Pettit <jpettit@nicira.com>
Date: Thu, 17 Apr 2008 01:26:47 +0000 (-0700)
Subject: Fix a problem with not allocating enough room for netlink messages.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=30217c8a48d36ffe05c31813d0d84808f2118f78;p=openvswitch

Fix a problem with not allocating enough room for netlink messages.
---

diff --git a/datapath/datapath.c b/datapath/datapath.c
index 8ab30011..89c57674 100644
--- a/datapath/datapath.c
+++ b/datapath/datapath.c
@@ -105,7 +105,8 @@ alloc_openflow_skb(struct datapath *dp, size_t openflow_len, uint8_t type,
 	struct nlattr *attr;
 	struct ofp_header *oh;
 
-	genl_len = nla_total_size(sizeof(uint32_t)); /* DP_GENL_A_DP_IDX */
+	genl_len = nlmsg_total_size(GENL_HDRLEN + dp_genl_family.hdrsize);
+	genl_len += nla_total_size(sizeof(uint32_t)); /* DP_GENL_A_DP_IDX */
 	genl_len += nla_total_size(openflow_len);    /* DP_GENL_A_OPENFLOW */
 	skb = *pskb = genlmsg_new(genl_len, GFP_ATOMIC);
 	if (!skb) {