summaryrefslogtreecommitdiffstats
path: root/net/batman-adv/main.c
diff options
context:
space:
mode:
authorMartin Hundebøll2013-05-23 16:53:02 +0200
committerAntonio Quartulli2013-10-12 11:58:34 +0200
commit610bfc6bc99bc83680d190ebc69359a05fc7f605 (patch)
tree355ae39e185e72ca129360037525fd5f7f5ff875 /net/batman-adv/main.c
parentbatman-adv: Remove old fragmentation code (diff)
downloadkernel-qcow2-linux-610bfc6bc99bc83680d190ebc69359a05fc7f605.tar.gz
kernel-qcow2-linux-610bfc6bc99bc83680d190ebc69359a05fc7f605.tar.xz
kernel-qcow2-linux-610bfc6bc99bc83680d190ebc69359a05fc7f605.zip
batman-adv: Receive fragmented packets and merge
Fragments arriving at their destination are buffered for later merge. Merged packets are passed to the main receive function as had they never been fragmented. Fragments are forwarded without merging if the MTU of the outgoing interface is smaller than the size of the merged packet. Signed-off-by: Martin Hundebøll <martin@hundeboll.net> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Diffstat (limited to 'net/batman-adv/main.c')
-rw-r--r--net/batman-adv/main.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 8822fad5694e..ca6f1340d70c 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -40,6 +40,7 @@
#include "hash.h"
#include "bat_algo.h"
#include "network-coding.h"
+#include "fragmentation.h"
/* List manipulations on hardif_list have to be rtnl_lock()'ed,
@@ -399,6 +400,7 @@ static void batadv_recv_handler_init(void)
BUILD_BUG_ON(offsetof(struct batadv_unicast_4addr_packet, src) != 10);
BUILD_BUG_ON(offsetof(struct batadv_unicast_packet, dest) != 4);
BUILD_BUG_ON(offsetof(struct batadv_unicast_tvlv_packet, dst) != 4);
+ BUILD_BUG_ON(offsetof(struct batadv_frag_packet, dest) != 4);
BUILD_BUG_ON(offsetof(struct batadv_icmp_packet, dst) != 4);
BUILD_BUG_ON(offsetof(struct batadv_icmp_packet_rr, dst) != 4);
@@ -414,6 +416,8 @@ static void batadv_recv_handler_init(void)
batadv_rx_handler[BATADV_UNICAST_TVLV] = batadv_recv_unicast_tvlv;
/* batman icmp packet */
batadv_rx_handler[BATADV_ICMP] = batadv_recv_icmp_packet;
+ /* Fragmented packets */
+ batadv_rx_handler[BATADV_UNICAST_FRAG] = batadv_recv_frag_packet;
}
int