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6lowpan: handling 6lowpan fragmentation via inet_frag api

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This patch drops the current way of 6lowpan fragmentation on receiving
side and replace it with a implementation which use the inet_frag api.
The old fragmentation handling has some race conditions and isn't
rfc4944 compatible. Also adding support to match fragments on
destination address, source address, tag value and datagram_size
which is missing in the current implementation.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Aring
2014-02-28 07:32:50 +01:00
committed by David S. Miller
parent 633fc86ff6
commit 7240cdec60
5 changed files with 690 additions and 209 deletions
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9
include/net/netns/ieee802154_6lowpan.h
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@@ -7,7 +7,16 @@
#ifndef __NETNS_IEEE802154_6LOWPAN_H__
#define __NETNS_IEEE802154_6LOWPAN_H__
struct netns_sysctl_lowpan {
#ifdef CONFIG_SYSCTL
struct ctl_table_header *frags_hdr;
#endif
};
struct netns_ieee802154_lowpan {
struct netns_sysctl_lowpan sysctl;
struct netns_frags frags;
u16 max_dsize;
};
#endif