diff options
| author |   Jukka Rissanen <jukka.rissanen@linux.intel.com> | 2013-12-11 17:05:34 +0200 |
|---|---|---|
| committer |   Marcel Holtmann <marcel@holtmann.org> | 2013-12-11 12:57:54 -0800 |
| commit | 8df8c56a5abc70af5862aa7cac2875aeeb17a42b (patch) | |
| tree | fa21c03bc3bd3bc9778894aa39c234e291f1d850 /net/ieee802154/6lowpan.h | |
| parent | Bluetooth: Fix handling of L2CAP Command Reject over LE (diff) | |
| download | linux-dev-8df8c56a5abc70af5862aa7cac2875aeeb17a42b.tar.xz linux-dev-8df8c56a5abc70af5862aa7cac2875aeeb17a42b.zip | |
6lowpan: Moving generic compression code into 6lowpan_iphc.c
Because the IEEE 802154 and Bluetooth share the IP header compression
and uncompression code, the common code is moved to 6lowpan_iphc.c
file.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/ieee802154/6lowpan.h')
| -rw-r--r-- | net/ieee802154/6lowpan.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/net/ieee802154/6lowpan.h b/net/ieee802154/6lowpan.h index 2869c0526dad..535606d45c39 100644 --- a/net/ieee802154/6lowpan.h +++ b/net/ieee802154/6lowpan.h @@ -232,6 +232,28 @@ dest = 16 bit inline */ #define LOWPAN_NHC_UDP_CS_P_11 0xF3 /* source & dest = 0xF0B + 4bit inline */ +static inline int lowpan_fetch_skb_u8(struct sk_buff *skb, u8 *val) +{ + if (unlikely(!pskb_may_pull(skb, 1))) + return -EINVAL; + + *val = skb->data[0]; + skb_pull(skb, 1); + + return 0; +} + +static inline int lowpan_fetch_skb_u16(struct sk_buff *skb, u16 *val) +{ + if (unlikely(!pskb_may_pull(skb, 2))) + return -EINVAL; + + *val = (skb->data[0] << 8) | skb->data[1]; + skb_pull(skb, 2); + + return 0; +} + static inline bool lowpan_fetch_skb(struct sk_buff *skb, void *data, const unsigned int len) { @@ -244,4 +266,14 @@ static inline bool lowpan_fetch_skb(struct sk_buff *skb, return false; } +typedef int (*skb_delivery_cb)(struct sk_buff *skb, struct net_device *dev); + +int lowpan_process_data(struct sk_buff *skb, struct net_device *dev, + const u8 *saddr, const u8 saddr_type, const u8 saddr_len, + const u8 *daddr, const u8 daddr_type, const u8 daddr_len, + u8 iphc0, u8 iphc1, skb_delivery_cb skb_deliver); +int lowpan_header_compress(struct sk_buff *skb, struct net_device *dev, + unsigned short type, const void *_daddr, + const void *_saddr, unsigned int len); + #endif /* __6LOWPAN_H__ */ |