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6lowpan: Moving generic compression code into 6lowpan_iphc.c

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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>
This commit is contained in:
Jukka Rissanen
2013-12-11 17:05:34 +02:00
committed by Marcel Holtmann
parent 71fb419724
commit 8df8c56a5a
4 changed files with 875 additions and 719 deletions
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753
net/ieee802154/6lowpan.c
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32
net/ieee802154/6lowpan.h
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@@ -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__ */

807
net/ieee802154/6lowpan_iphc.c Normal file
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File diff suppressed because it is too large Load Diff

2
net/ieee802154/Makefile
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@@ -1,5 +1,5 @@
obj-$(CONFIG_IEEE802154) += ieee802154.o af_802154.o
obj-$(CONFIG_IEEE802154_6LOWPAN) += 6lowpan.o
obj-$(CONFIG_IEEE802154_6LOWPAN) += 6lowpan.o 6lowpan_iphc.o
ieee802154-y := netlink.o nl-mac.o nl-phy.o nl_policy.o wpan-class.o
af_802154-y := af_ieee802154.o raw.o dgram.o