batman-adv: agglomerate all batman iv ogm processing functions in a single file

In preparation of the upcoming improved routing algorithm the code based has
to be re-organized to allow choosing the routing algorithm at compile time.
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

net/batman-adv/Makefile

@@ -21,6 +21,7 @@
 obj-$(CONFIG_BATMAN_ADV) += batman-adv.o
 batman-adv-y += aggregation.o
 batman-adv-y += bat_debugfs.o
+batman-adv-y += bat_iv_ogm.o
 batman-adv-y += bat_sysfs.o
 batman-adv-y += bitarray.o
 batman-adv-y += gateway_client.o

net/batman-adv/aggregation.c

@@ -264,34 +264,3 @@ void add_bat_packet_to_list(struct bat_priv *bat_priv,
 		spin_unlock_bh(&bat_priv->forw_bat_list_lock);
 	}
 }
-
-/* unpack the aggregated packets and process them one by one */
-void receive_aggr_bat_packet(const struct ethhdr *ethhdr,
-			     unsigned char *packet_buff, int packet_len,
-			     struct hard_iface *if_incoming)
-{
-	struct batman_ogm_packet *batman_ogm_packet;
-	int buff_pos = 0;
-	unsigned char *tt_buff;
-
-	batman_ogm_packet = (struct batman_ogm_packet *)packet_buff;
-
-	do {
-		/* network to host order for our 32bit seqno and the
-		   orig_interval */
-		batman_ogm_packet->seqno = ntohl(batman_ogm_packet->seqno);
-		batman_ogm_packet->tt_crc = ntohs(batman_ogm_packet->tt_crc);
-
-		tt_buff = packet_buff + buff_pos + BATMAN_OGM_LEN;
-
-		receive_bat_packet(ethhdr, batman_ogm_packet,
-				   tt_buff, if_incoming);
-
-		buff_pos += BATMAN_OGM_LEN +
-				tt_len(batman_ogm_packet->tt_num_changes);
-
-		batman_ogm_packet = (struct batman_ogm_packet *)
-						(packet_buff + buff_pos);
-	} while (aggregated_packet(buff_pos, packet_len,
-				   batman_ogm_packet->tt_num_changes));
-}

net/batman-adv/aggregation.h

@@ -38,8 +38,5 @@ void add_bat_packet_to_list(struct bat_priv *bat_priv,
 			    unsigned char *packet_buff, int packet_len,
 			    struct hard_iface *if_incoming, int own_packet,
 			    unsigned long send_time);
-void receive_aggr_bat_packet(const struct ethhdr *ethhdr,
-			     unsigned char *packet_buff, int packet_len,
-			     struct hard_iface *if_incoming);
 
 #endif /* _NET_BATMAN_ADV_AGGREGATION_H_ */

net/batman-adv/bat_ogm.h

+/*
+ * Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
+ *
+ * Marek Lindner, Simon Wunderlich
+ *
+ * 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_OGM_H_
+#define _NET_BATMAN_ADV_OGM_H_
+
+#include "main.h"
+
+void bat_ogm_receive(const struct ethhdr *ethhdr, unsigned char *packet_buff,
+		     int packet_len, struct hard_iface *if_incoming);
+
+#endif /* _NET_BATMAN_ADV_OGM_H_ */

net/batman-adv/hard-interface.c

@@ -632,7 +632,7 @@ static int batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
 	switch (batman_ogm_packet->packet_type) {
 		/* batman originator packet */
 	case BAT_OGM:
-		ret = recv_bat_packet(skb, hard_iface);
+		ret = recv_bat_ogm_packet(skb, hard_iface);
 		break;
 
 		/* batman icmp packet */

net/batman-adv/originator.c

@@ -336,8 +336,7 @@ static bool purge_orig_node(struct bat_priv *bat_priv,
 	} else {
 		if (purge_orig_neighbors(bat_priv, orig_node,
 							&best_neigh_node)) {
-			update_routes(bat_priv, orig_node,
-				      best_neigh_node);
+			update_route(bat_priv, orig_node, best_neigh_node);
 		}
 	}
 

net/batman-adv/routing.h

@@ -23,19 +23,15 @@
 #define _NET_BATMAN_ADV_ROUTING_H_
 
 void slide_own_bcast_window(struct hard_iface *hard_iface);
-void receive_bat_packet(const struct ethhdr *ethhdr,
-			struct batman_ogm_packet *batman_ogm_packet,
-			const unsigned char *tt_buff,
-			struct hard_iface *if_incoming);
-void update_routes(struct bat_priv *bat_priv, struct orig_node *orig_node,
-		   struct neigh_node *neigh_node);
+void update_route(struct bat_priv *bat_priv, struct orig_node *orig_node,
+		  struct neigh_node *neigh_node);
 int route_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_icmp_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_ucast_frag_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_bcast_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_vis_packet(struct sk_buff *skb, struct hard_iface *recv_if);
-int recv_bat_packet(struct sk_buff *skb, struct hard_iface *recv_if);
+int recv_bat_ogm_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_roam_adv(struct sk_buff *skb, struct hard_iface *recv_if);
 struct neigh_node *find_router(struct bat_priv *bat_priv,
@@ -43,5 +39,12 @@ struct neigh_node *find_router(struct bat_priv *bat_priv,
 			       const struct hard_iface *recv_if);
 void bonding_candidate_del(struct orig_node *orig_node,
 			   struct neigh_node *neigh_node);
+void bonding_candidate_add(struct orig_node *orig_node,
+			   struct neigh_node *neigh_node);
+void bonding_save_primary(const struct orig_node *orig_node,
+			  struct orig_node *orig_neigh_node,
+			  const struct batman_ogm_packet *batman_ogm_packet);
+int window_protected(struct bat_priv *bat_priv, int32_t seq_num_diff,
+		     unsigned long *last_reset);
 
 #endif /* _NET_BATMAN_ADV_ROUTING_H_ */