[B.A.T.M.A.N.] batman-adv: unicast fragmentation enhancements

Hi again,

things that changed since the last patch: - add support to fragment packets on every node, if outgoing iface mtu is smaller as the packet - add support to defragment packets on every node, if outgoing iface mtu is >= original size - rename some functions

In this patch every node defragment packets if it can. Do you think it is better to add an option to enable/disable this ?

Sven, any idea why checkpatch (0.31)b do this ?

ERROR: space prohibited after that '-' (ctx:WxW) #10: FILE: batman-adv/routing.c:1146: + uni_diff = sizeof(struct unicast_frag_packet) - hdr_len; ^

regards, Andreas