From 95277eb1cdd63bd45dbd5a5f1a32b9d904d5f56d Mon Sep 17 00:00:00 2001 From: Alexander Aring Date: Tue, 17 Dec 2013 14:21:23 +0100 Subject: [PATCH] 6lowpan: fix udp compress ordering In case ((ntohs(uh->source) & LOWPAN_NHC_UDP_8BIT_MASK) the order of uncompression is wrong. It's always first source port then destination port as second. See: http://tools.ietf.org/html/rfc6282#section-4.3.3 "Fields carried in-line (in part or in whole) appear in the same order as they do in the UDP header format" Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann --- net/ieee802154/6lowpan_iphc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ieee802154/6lowpan_iphc.c b/net/ieee802154/6lowpan_iphc.c index 77c0366a3b47..1933f5b06718 100644 --- a/net/ieee802154/6lowpan_iphc.c +++ b/net/ieee802154/6lowpan_iphc.c @@ -567,9 +567,9 @@ static void compress_udp_header(u8 **hc06_ptr, struct sk_buff *skb) pr_debug("UDP header: remove 8 bits of source\n"); tmp = LOWPAN_NHC_UDP_CS_P_10; lowpan_push_hc_data(hc06_ptr, &tmp, sizeof(tmp)); - lowpan_push_hc_data(hc06_ptr, &uh->dest, sizeof(uh->dest)); tmp = (u8)(uh->source - LOWPAN_NHC_UDP_8BIT_PORT); lowpan_push_hc_data(hc06_ptr, &tmp, sizeof(tmp)); + lowpan_push_hc_data(hc06_ptr, &uh->dest, sizeof(uh->dest)); } else { pr_debug("UDP header: can't compress\n"); tmp = LOWPAN_NHC_UDP_CS_P_00;