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| author | Alexander Aring <alex.aring@gmail.com> | 2015-09-02 14:21:25 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2015-09-17 13:20:03 +0200 |
| commit | 72a5e6bb5120d6464c9e7855c5a22555ede819dc (patch) | |
| tree | 14be5cd534bf3e6d7043cfd2f9d08c24b7028419 /net/ieee802154/6lowpan/6lowpan_i.h | |
| parent | ieee802154: 6lowpan: earlier skb->dev switch (diff) | |
| download | linux-72a5e6bb5120d6464c9e7855c5a22555ede819dc.tar.xz linux-72a5e6bb5120d6464c9e7855c5a22555ede819dc.zip | |
ieee820154: 6lowpan: dispatch evaluation rework
This patch complete reworks the evaluation of 6lowpan dispatch value by
introducing a receive handler mechanism for each dispatch value.
A list of changes:
- Doing uncompression on-the-fly when FRAG1 is received, this require
some special handling for 802.15.4 lltype in generic 6lowpan branch
for setting the payload length correct.
- Fix dispatch mask for fragmentation.
- Add IPv6 dispatch evaluation for FRAG1.
- Add skb_unshare for dispatch which might manipulate the skb data
buffer.
Cc: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/ieee802154/6lowpan/6lowpan_i.h')
| -rw-r--r-- | net/ieee802154/6lowpan/6lowpan_i.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/ieee802154/6lowpan/6lowpan_i.h b/net/ieee802154/6lowpan/6lowpan_i.h index 9aa7b62b87fa..b4e17a7c0df0 100644 --- a/net/ieee802154/6lowpan/6lowpan_i.h +++ b/net/ieee802154/6lowpan/6lowpan_i.h @@ -7,6 +7,15 @@ #include <net/inet_frag.h> #include <net/6lowpan.h> +typedef unsigned __bitwise__ lowpan_rx_result; +#define RX_CONTINUE ((__force lowpan_rx_result) 0u) +#define RX_DROP_UNUSABLE ((__force lowpan_rx_result) 1u) +#define RX_DROP ((__force lowpan_rx_result) 2u) +#define RX_QUEUED ((__force lowpan_rx_result) 3u) + +#define LOWPAN_DISPATCH_FRAG1 0xc0 +#define LOWPAN_DISPATCH_FRAGN 0xe0 + struct lowpan_create_arg { u16 tag; u16 d_size; @@ -62,4 +71,7 @@ int lowpan_header_create(struct sk_buff *skb, struct net_device *dev, const void *_saddr, unsigned int len); netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *dev); +int lowpan_iphc_decompress(struct sk_buff *skb); +lowpan_rx_result lowpan_rx_h_ipv6(struct sk_buff *skb); + #endif /* __IEEE802154_6LOWPAN_I_H__ */ |