[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/net/batman-adv/unicast.h b/ap/os/linux/linux-3.4.x/net/batman-adv/unicast.h
new file mode 100644
index 0000000..a9faf6b
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/net/batman-adv/unicast.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2010-2012 B.A.T.M.A.N. contributors:
+ *
+ * Andreas Langer
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ *
+ */
+
+#ifndef _NET_BATMAN_ADV_UNICAST_H_
+#define _NET_BATMAN_ADV_UNICAST_H_
+
+#include "packet.h"
+
+#define FRAG_TIMEOUT 10000 /* purge frag list entries after time in ms */
+#define FRAG_BUFFER_SIZE 6 /* number of list elements in buffer */
+
+int frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
+ struct sk_buff **new_skb);
+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 hard_iface *hard_iface, const uint8_t dstaddr[]);
+
+static inline int frag_can_reassemble(const struct sk_buff *skb, int mtu)
+{
+ const 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(*unicast_packet)) * 2;
+ merged_size += sizeof(struct unicast_packet) + uneven_correction;
+
+ return merged_size <= mtu;
+}
+
+#endif /* _NET_BATMAN_ADV_UNICAST_H_ */