Merge pull request #537 from ecsv/batadv-for-18.06

openwrt-18.06: batman-adv: Merge bugfixes from 2019.5

batman-adv/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=batman-adv
 
 PKG_VERSION:=2018.1
-PKG_RELEASE:=8
+PKG_RELEASE:=9
 PKG_HASH:=b866b28dbbe5c9238abbdf5abbc30fc526dea56898ce4c1bd76d5c017843048b
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz

batman-adv/patches/0034-batman-adv-Only-read-OGM-tvlv_len-after-buffer-len-c.patch

@@ -22,7 +22,7 @@ Acked-by: Antonio Quartulli <a@unstable.cc>
 Origin: upstream, https://git.open-mesh.org/batman-adv.git/commit/07b6051ebcfaa7ea89b4f278eca2ff4070d29e56
 
 diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
-index 73bf6a93a3cf1141a34657bf1284893199e04db9..3db8a0278046c0a9f4d2604f0067ba4efe3ef588 100644
+index 0b7b36fa0d5cd440ddef141ad27acfe7b20aee43..36f244125d24c800d35249af7639d39a516588d4 100644
 --- a/net/batman-adv/bat_iv_ogm.c
 +++ b/net/batman-adv/bat_iv_ogm.c
 @@ -463,17 +463,23 @@ static u8 batadv_hop_penalty(u8 tq, const struct batadv_priv *bat_priv)

batman-adv/patches/0036-batman-adv-Avoid-free-alloc-race-when-handling-OGM2-.patch

@@ -101,10 +101,10 @@ index d241ccc0ca0278173853512c8aa4bfb8b041f996..a9f949501ff3c354d38e3ad333901310
  	ogm_buff = kzalloc(bat_priv->bat_v.ogm_buff_len, GFP_ATOMIC);
  	if (!ogm_buff)
 diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
-index 476b052ad9824d4cbcd6218dce40b603e3400fd2..8eaec92aff8919f0c6ca6b05be22e592b7ae0e1a 100644
+index 86f37db7dd01592aff95ada5ba5441667971e1bc..3392198ff146ba77d320104663e97ab21559d556 100644
 --- a/net/batman-adv/types.h
 +++ b/net/batman-adv/types.h
-@@ -1474,10 +1474,10 @@ struct batadv_softif_vlan {
+@@ -1479,10 +1479,10 @@ struct batadv_softif_vlan {
   * struct batadv_priv_bat_v - B.A.T.M.A.N. V per soft-interface private data
   */
  struct batadv_priv_bat_v {

batman-adv/patches/0037-batman-adv-Avoid-free-alloc-race-when-handling-OGM-b.patch

@@ -21,7 +21,7 @@ Signed-off-by: Sven Eckelmann <sven@narfation.org>
 Origin: upstream, https://git.open-mesh.org/batman-adv.git/commit/9b8ceef26c697d0c8319748428944c3339a498dc
 
 diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
-index 3db8a0278046c0a9f4d2604f0067ba4efe3ef588..cb27949f4086643ebd018a0a01ab0b848ce5123f 100644
+index 36f244125d24c800d35249af7639d39a516588d4..5b2ef12cfabb24ccbe2c1848cfff4d1ded9bd0b0 100644
 --- a/net/batman-adv/bat_iv_ogm.c
 +++ b/net/batman-adv/bat_iv_ogm.c
 @@ -42,6 +42,7 @@
@@ -118,7 +118,7 @@ index 3db8a0278046c0a9f4d2604f0067ba4efe3ef588..cb27949f4086643ebd018a0a01ab0b84
  				 struct batadv_hard_iface *if_incoming)
  {
 diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
-index 8eaec92aff8919f0c6ca6b05be22e592b7ae0e1a..d43f1ec4532d1fda1d50061e581f4770a6037739 100644
+index 3392198ff146ba77d320104663e97ab21559d556..49e4e6cb506f192e85e96e8b3e68be3fdc2dca57 100644
 --- a/net/batman-adv/types.h
 +++ b/net/batman-adv/types.h
 @@ -82,10 +82,10 @@ enum batadv_dhcp_recipient {

batman-adv/patches/0038-batman-adv-Introduce-own-OGM2-buffer-mutex.patch

@@ -104,7 +104,7 @@ index a9f949501ff3c354d38e3ad333901310391f27d8..bf9ea404abe7cbe1dd2113881856cd35
 +	mutex_unlock(&bat_priv->bat_v.ogm_buff_mutex);
  }
 diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
-index d43f1ec4532d1fda1d50061e581f4770a6037739..05542a32f8c9c00b9d0cd7dbbab60cb773724613 100644
+index 49e4e6cb506f192e85e96e8b3e68be3fdc2dca57..44c423447fe163eb3b9df5ec5cf229bed6b8d65b 100644
 --- a/net/batman-adv/types.h
 +++ b/net/batman-adv/types.h
 @@ -28,6 +28,7 @@
@@ -115,7 +115,7 @@ index d43f1ec4532d1fda1d50061e581f4770a6037739..05542a32f8c9c00b9d0cd7dbbab60cb7
  #include <linux/netdevice.h>
  #include <linux/netlink.h>
  #include <linux/sched.h> /* for linux/wait.h */
-@@ -1474,15 +1475,18 @@ struct batadv_softif_vlan {
+@@ -1479,15 +1480,18 @@ struct batadv_softif_vlan {
   * struct batadv_priv_bat_v - B.A.T.M.A.N. V per soft-interface private data
   */
  struct batadv_priv_bat_v {

batman-adv/patches/0039-batman-adv-Avoid-OGM-workqueue-synchronous-cancel-de.patch

@@ -25,7 +25,7 @@ Signed-off-by: Sven Eckelmann <sven@narfation.org>
 Origin: upstream, https://git.open-mesh.org/batman-adv.git/commit/d3be478f1aa27b47f61c4a62e18eb063d47c9168
 
 diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
-index cb27949f4086643ebd018a0a01ab0b848ce5123f..b87bf2e511e0cd702a94594b8ddfe107ee17cef2 100644
+index 5b2ef12cfabb24ccbe2c1848cfff4d1ded9bd0b0..f5941837c3ad463f276cffdb25f9b6cd87af0e92 100644
 --- a/net/batman-adv/bat_iv_ogm.c
 +++ b/net/batman-adv/bat_iv_ogm.c
 @@ -35,6 +35,7 @@
@@ -217,10 +217,10 @@ index cb27949f4086643ebd018a0a01ab0b848ce5123f..b87bf2e511e0cd702a94594b8ddfe107
  				 struct batadv_hard_iface *if_incoming)
  {
 diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
-index 2f0d42f2f913e74cf10c0c6ce89320434994cac5..48123e9e3a6d221a9033bc2949e19a306e973546 100644
+index 36f0962040d16af4f9ed82629ff03ce85c83ed57..c4e0435c952db87c89727633c184320820812cda 100644
 --- a/net/batman-adv/hard-interface.c
 +++ b/net/batman-adv/hard-interface.c
-@@ -30,6 +30,7 @@
+@@ -29,6 +29,7 @@
  #include <linux/kernel.h>
  #include <linux/kref.h>
  #include <linux/list.h>
@@ -228,7 +228,7 @@ index 2f0d42f2f913e74cf10c0c6ce89320434994cac5..48123e9e3a6d221a9033bc2949e19a30
  #include <linux/netdevice.h>
  #include <linux/printk.h>
  #include <linux/rculist.h>
-@@ -929,6 +930,7 @@ batadv_hardif_add_interface(struct net_device *net_dev)
+@@ -933,6 +934,7 @@ batadv_hardif_add_interface(struct net_device *net_dev)
  	INIT_LIST_HEAD(&hard_iface->list);
  	INIT_HLIST_HEAD(&hard_iface->neigh_list);
  
@@ -237,7 +237,7 @@ index 2f0d42f2f913e74cf10c0c6ce89320434994cac5..48123e9e3a6d221a9033bc2949e19a30
  	kref_init(&hard_iface->refcount);
  
 diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
-index 05542a32f8c9c00b9d0cd7dbbab60cb773724613..c843a69677d1e0eefaf6a1432541052b7cd2965a 100644
+index 44c423447fe163eb3b9df5ec5cf229bed6b8d65b..85f52dc42e17f7ed550f13048a2e2bd9d372196b 100644
 --- a/net/batman-adv/types.h
 +++ b/net/batman-adv/types.h
 @@ -83,14 +83,17 @@ enum batadv_dhcp_recipient {

batman-adv/patches/0040-batman-adv-Fix-DAT-candidate-selection-on-little-end.patch

@@ -0,0 +1,43 @@
+From: Sven Eckelmann <sven@narfation.org>
+Date: Thu, 28 Nov 2019 12:43:49 +0100
+Subject: batman-adv: Fix DAT candidate selection on little endian systems
+
+The distributed arp table is using a DHT to store and retrieve MAC address
+information for an IP address. This is done using unicast messages to
+selected peers. The potential peers are looked up using the IP address and
+the VID.
+
+While the IP address is always stored in big endian byte order, it is not
+the case of the VID. It can (depending on the host system) either be big
+endian or little endian. The host must therefore always convert it to big
+endian to ensure that all devices calculate the same peers for the same
+lookup data.
+
+Fixes: 3e26722bc9f2 ("batman-adv: make the Distributed ARP Table vlan aware")
+Signed-off-by: Sven Eckelmann <sven@narfation.org>
+Acked-by: Antonio Quartulli <a@unstable.cc>
+
+Origin: upstream, https://git.open-mesh.org/batman-adv.git/commit/728aea06f38e0e4d70f4f7d43698187f7f7055c5
+
+diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
+index a60bacf7120be88ba7626cf0a87dd34eef0a2eec..21783805a3afd974cebc7e640249402d637d731a 100644
+--- a/net/batman-adv/distributed-arp-table.c
++++ b/net/batman-adv/distributed-arp-table.c
+@@ -251,6 +251,7 @@ static u32 batadv_hash_dat(const void *data, u32 size)
+ 	u32 hash = 0;
+ 	const struct batadv_dat_entry *dat = data;
+ 	const unsigned char *key;
++	__be16 vid;
+ 	u32 i;
+ 
+ 	key = (const unsigned char *)&dat->ip;
+@@ -260,7 +261,8 @@ static u32 batadv_hash_dat(const void *data, u32 size)
+ 		hash ^= (hash >> 6);
+ 	}
+ 
+-	key = (const unsigned char *)&dat->vid;
++	vid = htons(dat->vid);
++	key = (__force const unsigned char *)&vid;
+ 	for (i = 0; i < sizeof(dat->vid); i++) {
+ 		hash += key[i];
+ 		hash += (hash << 10);