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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 16:29:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 16:29:25 -0700
commit7a6362800cb7d1d618a697a650c7aaed3eb39320 (patch)
tree087f9bc6c13ef1fad4b392c5cf9325cd28fa8523 /net/batman-adv/unicast.h
parent6445ced8670f37cfc2c5e24a9de9b413dbfc788d (diff)
parentceda86a108671294052cbf51660097b6534672f5 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1480 commits) bonding: enable netpoll without checking link status xfrm: Refcount destination entry on xfrm_lookup net: introduce rx_handler results and logic around that bonding: get rid of IFF_SLAVE_INACTIVE netdev->priv_flag bonding: wrap slave state work net: get rid of multiple bond-related netdevice->priv_flags bonding: register slave pointer for rx_handler be2net: Bump up the version number be2net: Copyright notice change. Update to Emulex instead of ServerEngines e1000e: fix kconfig for crc32 dependency netfilter ebtables: fix xt_AUDIT to work with ebtables xen network backend driver bonding: Improve syslog message at device creation time bonding: Call netif_carrier_off after register_netdevice bonding: Incorrect TX queue offset net_sched: fix ip_tos2prio xfrm: fix __xfrm_route_forward() be2net: Fix UDP packet detected status in RX compl Phonet: fix aligned-mode pipe socket buffer header reserve netxen: support for GbE port settings ... Fix up conflicts in drivers/staging/brcm80211/brcmsmac/wl_mac80211.c with the staging updates.
Diffstat (limited to 'net/batman-adv/unicast.h')
-rw-r--r--net/batman-adv/unicast.h27
1 files changed, 25 insertions, 2 deletions
diff --git a/net/batman-adv/unicast.h b/net/batman-adv/unicast.h
index e32b7867a9a4..16ad7a9242b5 100644
--- a/net/batman-adv/unicast.h
+++ b/net/batman-adv/unicast.h
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2010 B.A.T.M.A.N. contributors:
+ * Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
*
* Andreas Langer
*
@@ -22,6 +22,8 @@
#ifndef _NET_BATMAN_ADV_UNICAST_H_
#define _NET_BATMAN_ADV_UNICAST_H_
+#include "packet.h"
+
#define FRAG_TIMEOUT 10000 /* purge frag list entrys after time in ms */
#define FRAG_BUFFER_SIZE 6 /* number of list elements in buffer */
@@ -30,6 +32,27 @@ int frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
void frag_list_free(struct list_head *head);
int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv);
int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
- struct batman_if *batman_if, uint8_t dstaddr[]);
+ struct hard_iface *hard_iface, uint8_t dstaddr[]);
+
+static inline int frag_can_reassemble(struct sk_buff *skb, int mtu)
+{
+ struct unicast_frag_packet *unicast_packet;
+ int uneven_correction = 0;
+ unsigned int merged_size;
+
+ unicast_packet = (struct unicast_frag_packet *)skb->data;
+
+ if (unicast_packet->flags & UNI_FRAG_LARGETAIL) {
+ if (unicast_packet->flags & UNI_FRAG_HEAD)
+ uneven_correction = 1;
+ else
+ uneven_correction = -1;
+ }
+
+ merged_size = (skb->len - sizeof(struct unicast_frag_packet)) * 2;
+ merged_size += sizeof(struct unicast_packet) + uneven_correction;
+
+ return merged_size <= mtu;
+}
#endif /* _NET_BATMAN_ADV_UNICAST_H_ */