[riot-commits] [RIOT-OS/RIOT] 6e1521: gnrc_sixlowpan_iphc: Fixed encoding when COMP=0

[Martine Lenders]

  Branch: refs/heads/2016.10-branch
  Home:   https://github.com/RIOT-OS/RIOT
  Commit: 6e15213c9d9ccaf8eb4c53941d06f146499372b9
      https://github.com/RIOT-OS/RIOT/commit/6e15213c9d9ccaf8eb4c53941d06f146499372b9
  Author: Martin Elshuber <martin.elshuber at theobroma-systems.com>
  Date:   2016-11-08 (Tue, 08 Nov 2016)

  Changed paths:
    M sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c

  Log Message:
  -----------
  gnrc_sixlowpan_iphc: Fixed encoding when COMP=0

Summary:

Even ehen COMP is cleared, the algorithm always elides part of the address when a matching
context is found.

This behviour occurs because in the line

  if ((src_ctx != NULL) || ipv6_addr_is_link_local(&(ipv6_hdr->src)))

the COMP bit is not tested.

This patch fixes the problem by setting [src|dst]_ctx to NULL if the
context must not be used.


  Commit: 4d213f9ba98c3f0b4841be64843f67774636e289
      https://github.com/RIOT-OS/RIOT/commit/4d213f9ba98c3f0b4841be64843f67774636e289
  Author: Martin Elshuber <martin.elshuber at theobroma-systems.com>
  Date:   2016-11-08 (Tue, 08 Nov 2016)

  Changed paths:
    M sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c

  Log Message:
  -----------
  gnrc_sixlowpan_iphc.c: Updated comments some logic


  Commit: aa3134a6d4fbf379d0a644963496ff378dcc04db
      https://github.com/RIOT-OS/RIOT/commit/aa3134a6d4fbf379d0a644963496ff378dcc04db
  Author: Martine Lenders <authmillenon at gmail.com>
  Date:   2016-11-08 (Tue, 08 Nov 2016)

  Changed paths:
    M sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c

  Log Message:
  -----------
  Merge pull request #6077 from melshuber/2016.10-iphc

gnrc_sixlowpan_iphc: Fixed encoding when COMP=0; backport of #6071


Compare: https://github.com/RIOT-OS/RIOT/compare/66dfb8d4be6c...aa3134a6d4fb