batman-adv: split tvlv into a separate file

The tvlv functionality in main.c is mostly unrelated to the rest of the
content. It still takes up a large portion of this source file (~45%, 588
lines). Moving it to a separate file makes it better visible as a main
component of the batman-adv implementation and hides it less in the other
helper functions in main.c

Signed-off-by: Markus Pargmann <[email protected]>
[[email protected]: fix conflicts with current version, fix includes,
rewrote commit message]
Signed-off-by: Sven Eckelmann <[email protected]>
Signed-off-by: Marek Lindner <[email protected]>
Signed-off-by: Simon Wunderlich <[email protected]>

net/batman-adv/Makefile

@@ -40,3 +40,4 @@ batman-adv-y += send.o
 batman-adv-y += soft-interface.o
 batman-adv-y += sysfs.o
 batman-adv-y += translation-table.o
+batman-adv-y += tvlv.o

net/batman-adv/bat_iv_ogm.c

@@ -58,6 +58,7 @@
 #include "routing.h"
 #include "send.h"
 #include "translation-table.h"
+#include "tvlv.h"
 
 static void batadv_iv_send_outstanding_bat_ogm_packet(struct work_struct *work);
 

net/batman-adv/bat_v_ogm.c

@@ -46,6 +46,7 @@
 #include "routing.h"
 #include "send.h"
 #include "translation-table.h"
+#include "tvlv.h"
 
 /**
  * batadv_v_ogm_orig_get - retrieve and possibly create an originator node

net/batman-adv/distributed-arp-table.c

@@ -48,6 +48,7 @@
 #include "originator.h"
 #include "send.h"
 #include "translation-table.h"
+#include "tvlv.h"
 
 static void batadv_dat_purge(struct work_struct *work);
 

net/batman-adv/gateway_common.c

@@ -29,6 +29,7 @@
 
 #include "gateway_client.h"
 #include "packet.h"
+#include "tvlv.h"
 
 /**
  * batadv_parse_throughput - parse supplied string buffer to extract throughput