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This patch reworks the handling of compression/decompression of traffic class and flow label handling. The current method is hard to understand, also doesn't checks if we can read the buffer from skb length. I tried to put the shifting operations into static inline functions and comment each steps which I did there to make it hopefully somewhat more readable. The big mess to deal with that is the that the ipv6 header bring the order "DSCP + ECN" but iphc uses "ECN + DSCP". Additional the DCSP + ECN bits are splitted in ipv6_hdr inside the priority and flow_lbl[0] fields. I tested these compressions by using fakelb 802.15.4 driver and manipulate the tc and flow label fields manually in function "__ip6_local_out" before the skb will be send to lower layers. Then I looked up the tc and flow label fields in wireshark on a wpan and lowpan interface. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> |
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| .. | ||
| core.c | ||
| iphc.c | ||
| Kconfig | ||
| Makefile | ||
| nhc_dest.c | ||
| nhc_fragment.c | ||
| nhc_hop.c | ||
| nhc_ipv6.c | ||
| nhc_mobility.c | ||
| nhc_routing.c | ||
| nhc_udp.c | ||
| nhc.c | ||
| nhc.h | ||