From 1ddb6b71b9b572edb2b9c09086ee3bbbc550d9cd Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Tue, 10 May 2016 11:56:32 +0200 Subject: [PATCH] ila: ipv6/ila: fix nlsize calculation for lwtunnel The handler 'ila_fill_encap_info' adds two attributes: ILA_ATTR_LOCATOR and ILA_ATTR_CSUM_MODE. nla_total_size_64bit() must be use for ILA_ATTR_LOCATOR. Also, do nla_put_u8 instead of nla_put_u64 for ILA_ATTR_CSUM_MODE. Fixes: f13a82d87b21 ("ipv6: use nla_put_u64_64bit()") Fixes: 90bfe662db13 ("ila: add checksum neutral ILA translations") Reported-by: Nicolas Dichtel Signed-off-by: Tom Herbert Signed-off-by: Nicolas Dichtel Acked-by: Tom Herbert Signed-off-by: David S. Miller --- net/ipv6/ila/ila_lwt.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/ipv6/ila/ila_lwt.c b/net/ipv6/ila/ila_lwt.c index 17038e1ede98..1dfb64166d7d 100644 --- a/net/ipv6/ila/ila_lwt.c +++ b/net/ipv6/ila/ila_lwt.c @@ -133,7 +133,7 @@ static int ila_fill_encap_info(struct sk_buff *skb, if (nla_put_u64_64bit(skb, ILA_ATTR_LOCATOR, (__force u64)p->locator.v64, ILA_ATTR_PAD)) goto nla_put_failure; - if (nla_put_u64(skb, ILA_ATTR_CSUM_MODE, (__force u8)p->csum_mode)) + if (nla_put_u8(skb, ILA_ATTR_CSUM_MODE, (__force u8)p->csum_mode)) goto nla_put_failure; return 0; @@ -144,7 +144,9 @@ nla_put_failure: static int ila_encap_nlsize(struct lwtunnel_state *lwtstate) { - return nla_total_size(sizeof(u64)); /* ILA_ATTR_LOCATOR */ + return nla_total_size_64bit(sizeof(u64)) + /* ILA_ATTR_LOCATOR */ + nla_total_size(sizeof(u8)) + /* ILA_ATTR_CSUM_MODE */ + 0; } static int ila_encap_cmp(struct lwtunnel_state *a, struct lwtunnel_state *b) -- 2.20.1