batman-adv: ap isolation and bridge loop avoidance fixes
authorMarek Lindner <lindner_marek@yahoo.de>
Sat, 17 Nov 2012 06:08:38 +0000 (06:08 +0000)
committerMarek Lindner <lindner_marek@yahoo.de>
Sat, 17 Nov 2012 06:08:38 +0000 (06:08 +0000)
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
git-svn-id: svn://svn.openwrt.org/openwrt/packages/net/batman-adv@34221 3c298f89-4303-0410-b956-a3cf2f4a3e73

Makefile
patches/0001-batman-adv_fix_tt_global_entries_flags_update.patch [new file with mode: 0644]
patches/0002-batman-adv_correctly_pass_the_client_flag_on_tt_response.patch [new file with mode: 0644]
patches/0003-batman-adv_do_not_add_TEMP_clients_belonging_to_other_backbone_nodes.patch [new file with mode: 0644]
patches/0004-batman-adv_process_broadcast_packets_in_BLA_earlier.patch [new file with mode: 0644]

index 18f4fff..f782ab7 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@ PKG_NAME:=batman-adv
 
 PKG_VERSION:=2012.4.0
 BATCTL_VERSION:=2012.4.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 PKG_MD5SUM:=24e922a64a507b146c32c585538407f2
 BATCTL_MD5SUM:=79d5aa796ae8b008a9fa42c27d4da2c1
 
diff --git a/patches/0001-batman-adv_fix_tt_global_entries_flags_update.patch b/patches/0001-batman-adv_fix_tt_global_entries_flags_update.patch
new file mode 100644 (file)
index 0000000..d298dce
--- /dev/null
@@ -0,0 +1,91 @@
+From ordex@autistici.org Fri Nov 16 16:49:15 2012
+X-Apparently-To: lindner_marek@yahoo.de via 188.125.84.188; Fri, 16 Nov 2012 08:50:20 +0000
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+From: Antonio Quartulli <ordex@autistici.org>
+To: davem@davemloft.net
+Cc: netdev@vger.kernel.org,
+ Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>,
+ Marek Lindner <lindner_marek@yahoo.de>,
+ Sven Eckelmann <sven@narfation.org>,
+ Antonio Quartulli <ordex@autistici.org>
+Subject: [PATCH] batman-adv: fix tt_global_entries flags update
+Date: Fri, 16 Nov 2012 09:49:15 +0100
+Message-Id: <1353055758-2901-2-git-send-email-ordex@autistici.org>
+X-Mailer: git-send-email 1.8.0
+In-Reply-To: <1353055758-2901-1-git-send-email-ordex@autistici.org>
+References: <1353055758-2901-1-git-send-email-ordex@autistici.org>
+Status: R
+X-Status: N
+X-KMail-EncryptionState:  
+X-KMail-SignatureState:  
+X-KMail-MDN-Sent:  
+
+Flags carried by a change_entry have to be always copied into the
+client entry as they may contain important attributes (e.g.
+TT_CLIENT_WIFI).
+
+For instance, a client added by means of the "early detection
+mechanism" has no flag set at the beginning, so they must be updated once the
+proper ADD event is received.
+
+This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
+("batman-adv: detect not yet announced clients")
+
+Signed-off-by: Antonio Quartulli <ordex@autistici.org>
+Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
+---
+ translation-table.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/translation-table.c b/translation-table.c
+index 112edd3..64c0012 100644
+--- a/translation-table.c
++++ b/translation-table.c
+@@ -769,6 +769,12 @@ int batadv_tt_global_add(struct batadv_priv *bat_priv,
+                */
+               tt_global_entry->common.flags &= ~BATADV_TT_CLIENT_TEMP;
++              /* the change can carry possible "attribute" flags like the
++               * TT_CLIENT_WIFI, therefore they have to be copied in the
++               * client entry
++               */
++              tt_global_entry->common.flags |= flags;
++
+               /* If there is the BATADV_TT_CLIENT_ROAM flag set, there is only
+                * one originator left in the list and we previously received a
+                * delete + roaming change for this originator.
+-- 
+1.8.0
+
diff --git a/patches/0002-batman-adv_correctly_pass_the_client_flag_on_tt_response.patch b/patches/0002-batman-adv_correctly_pass_the_client_flag_on_tt_response.patch
new file mode 100644 (file)
index 0000000..ceccae6
--- /dev/null
@@ -0,0 +1,85 @@
+From ordex@autistici.org Fri Nov 16 16:49:16 2012
+X-Apparently-To: lindner_marek@yahoo.de via 188.125.84.191; Fri, 16 Nov 2012 08:50:21 +0000
+Received-SPF: pass (domain of autistici.org designates 178.255.144.35 as permitted sender)
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+From: Antonio Quartulli <ordex@autistici.org>
+To: davem@davemloft.net
+Cc: netdev@vger.kernel.org,
+ Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>,
+ Marek Lindner <lindner_marek@yahoo.de>,
+ Sven Eckelmann <sven@narfation.org>,
+ Antonio Quartulli <ordex@autistici.org>
+Subject: [PATCH] batman-adv: correctly pass the client flag on tt_response
+Date: Fri, 16 Nov 2012 09:49:16 +0100
+Message-Id: <1353055758-2901-3-git-send-email-ordex@autistici.org>
+X-Mailer: git-send-email 1.8.0
+In-Reply-To: <1353055758-2901-1-git-send-email-ordex@autistici.org>
+References: <1353055758-2901-1-git-send-email-ordex@autistici.org>
+Status: R
+X-Status: N
+X-KMail-EncryptionState:  
+X-KMail-SignatureState:  
+X-KMail-MDN-Sent:  
+
+When a TT response with the full table is sent, the client flags
+should be sent as well. This patch fix the flags assignment when
+populating the tt_response to send back
+
+This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
+("batman-adv: detect not yet announced clients")
+
+Signed-off-by: Antonio Quartulli <ordex@autistici.org>
+Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
+---
+ translation-table.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/translation-table.c b/translation-table.c
+index 64c0012..fec1a00 100644
+--- a/translation-table.c
++++ b/translation-table.c
+@@ -1502,7 +1502,7 @@ batadv_tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
+                       memcpy(tt_change->addr, tt_common_entry->addr,
+                              ETH_ALEN);
+-                      tt_change->flags = BATADV_NO_FLAGS;
++                      tt_change->flags = tt_common_entry->flags;
+                       tt_count++;
+                       tt_change++;
+-- 
+1.8.0
+
diff --git a/patches/0003-batman-adv_do_not_add_TEMP_clients_belonging_to_other_backbone_nodes.patch b/patches/0003-batman-adv_do_not_add_TEMP_clients_belonging_to_other_backbone_nodes.patch
new file mode 100644 (file)
index 0000000..e4f1f87
--- /dev/null
@@ -0,0 +1,91 @@
+From ordex@autistici.org Fri Nov 16 16:49:17 2012
+X-Apparently-To: lindner_marek@yahoo.de via 188.125.84.191; Fri, 16 Nov 2012 08:50:23 +0000
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+From: Antonio Quartulli <ordex@autistici.org>
+To: davem@davemloft.net
+Cc: netdev@vger.kernel.org,
+ Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>,
+ Marek Lindner <lindner_marek@yahoo.de>,
+ Sven Eckelmann <sven@narfation.org>,
+ Antonio Quartulli <ordex@autistici.org>
+Subject: [PATCH] batman-adv: don't add TEMP clients belonging to other backbone nodes
+Date: Fri, 16 Nov 2012 09:49:17 +0100
+Message-Id: <1353055758-2901-4-git-send-email-ordex@autistici.org>
+X-Mailer: git-send-email 1.8.0
+In-Reply-To: <1353055758-2901-1-git-send-email-ordex@autistici.org>
+References: <1353055758-2901-1-git-send-email-ordex@autistici.org>
+Status: R
+X-Status: N
+X-KMail-EncryptionState:  
+X-KMail-SignatureState:  
+X-KMail-MDN-Sent:  
+
+The "early client detection" mechanism must not add clients belonging
+to other backbone nodes. Such clients must be reached by directly
+using the LAN instead of the mesh.
+
+This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
+("batman-adv: detect not yet announced clients")
+
+Reported-by: Glen Page <glen.page@thet.net>
+Signed-off-by: Antonio Quartulli <ordex@autistici.org>
+Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
+---
+ net/batman-adv/translation-table.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/translation-table.c b/translation-table.c
+index fec1a00..baae715 100644
+--- a/translation-table.c
++++ b/translation-table.c
+@@ -2456,6 +2456,13 @@ bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
+ {
+       bool ret = false;
++      /* if the originator is a backbone node (meaning it belongs to the same
++       * LAN of this node) the temporary client must not be added because to
++       * reach such destination the node must use the LAN instead of the mesh
++       */
++      if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
++              goto out;
++
+       if (!batadv_tt_global_add(bat_priv, orig_node, addr,
+                                 BATADV_TT_CLIENT_TEMP,
+                                 atomic_read(&orig_node->last_ttvn)))
+-- 
+1.8.0
+
diff --git a/patches/0004-batman-adv_process_broadcast_packets_in_BLA_earlier.patch b/patches/0004-batman-adv_process_broadcast_packets_in_BLA_earlier.patch
new file mode 100644 (file)
index 0000000..e444bc4
--- /dev/null
@@ -0,0 +1,110 @@
+From ordex@autistici.org Fri Nov 16 16:49:18 2012
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+From: Antonio Quartulli <ordex@autistici.org>
+To: davem@davemloft.net
+Cc: netdev@vger.kernel.org,
+ Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>,
+ Marek Lindner <lindner_marek@yahoo.de>,
+ Sven Eckelmann <sven@narfation.org>,
+ Antonio Quartulli <ordex@autistici.org>,
+ Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
+Subject: [PATCH] batman-adv: process broadcast packets in BLA earlier
+Date: Fri, 16 Nov 2012 09:49:18 +0100
+Message-Id: <1353055758-2901-5-git-send-email-ordex@autistici.org>
+X-Mailer: git-send-email 1.8.0
+In-Reply-To: <1353055758-2901-1-git-send-email-ordex@autistici.org>
+References: <1353055758-2901-1-git-send-email-ordex@autistici.org>
+Status: R
+X-Status: N
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+X-KMail-SignatureState:  
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+
+The logic in the BLA mechanism may decide to drop broadcast packets
+because the node may still be in the setup phase. For this reason,
+further broadcast processing like the early client detection mechanism
+must be done only after the BLA check.
+
+This patches moves the invocation to BLA before any other broadcast
+processing.
+
+This was introduced 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
+("batman-adv: detect not yet announced clients")
+
+Reported-by: Glen Page <glen.page@thet.net>
+Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
+Signed-off-by: Antonio Quartulli <ordex@autistici.org>
+Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
+---
+ net/batman-adv/soft-interface.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/soft-interface.c b/soft-interface.c
+index b9a28d2..ce0684a 100644
+--- a/soft-interface.c
++++ b/soft-interface.c
+@@ -325,6 +325,12 @@ void batadv_interface_rx(struct net_device *soft_iface,
+       soft_iface->last_rx = jiffies;
++      /* Let the bridge loop avoidance check the packet. If will
++       * not handle it, we can safely push it up.
++       */
++      if (batadv_bla_rx(bat_priv, skb, vid, is_bcast))
++              goto out;
++
+       if (orig_node)
+               batadv_tt_add_temporary_global_entry(bat_priv, orig_node,
+                                                    ethhdr->h_source);
+@@ -332,12 +338,6 @@ void batadv_interface_rx(struct net_device *soft_iface,
+       if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest))
+               goto dropped;
+-      /* Let the bridge loop avoidance check the packet. If will
+-       * not handle it, we can safely push it up.
+-       */
+-      if (batadv_bla_rx(bat_priv, skb, vid, is_bcast))
+-              goto out;
+-
+       netif_rx(skb);
+       goto out;
+-- 
+1.8.0
+