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6LoWPAN: Correct an error in calculating the location of the UDP header.

This commit is contained in:
Gregory Nutt 2017-06-21 09:17:47 -06:00
parent e2195077d4
commit a53be51733
1 changed files with 5 additions and 9 deletions
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14
net/sixlowpan/sixlowpan_hc06.c
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@ -68,13 +68,6 @@
#ifdef CONFIG_NET_6LOWPAN_COMPRESSION_HC06
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define UDPIPv6BUF(ieee) \
((FAR struct udp_hdr_s *)&((ieee)->i_dev.d_buf[IPv6_HDRLEN]))
/****************************************************************************
* Private Types
****************************************************************************/
@ -760,9 +753,12 @@ void sixlowpan_compresshdr_hc06(FAR struct ieee802154_driver_s *ieee,
if (ipv6->proto == IP_PROTO_UDP)
{
FAR struct udp_hdr_s *udp = UDPIPv6BUF(ieee);
/* The UDP header will follow the IPv6 header */
ninfo("Uncompressed UDP ports on send side: %x, %x\n",
FAR struct udp_hdr_s *udp =
(FAR struct udp_hdr_s *)((FAR uint8_t *)ipv6 + IPv6_HDRLEN);
ninfo("Uncompressed UDP ports on send side: srcport=%04x destport=%04x\n",
ntohs(udp->srcport), ntohs(udp->destport));
/* Mask out the last 4 bits can be used as a mask */