- 17 2月, 2012 5 次提交
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由 Sven Eckelmann 提交于
Signed-off-by: NSven Eckelmann <sven@narfation.org> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Marek Lindner 提交于
Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Marek Lindner 提交于
Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Marek Lindner 提交于
Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Martin Hundebøll 提交于
Signed-off-by: NMartin Hundebøll <martin@hundeboll.net> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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- 08 9月, 2011 1 次提交
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由 Joe Perches 提交于
Removing unnecessary messages saves code and text. Site specific OOM messages are duplications of a generic MM out of memory message and aren't really useful, so just delete them. Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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- 22 8月, 2011 1 次提交
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由 Antonio Quartulli 提交于
Clients connected through a 802.11 device are now marked with the TT_CLIENT_WIFI flag. This flag is also advertised with the tt announcement. Signed-off-by: NAntonio Quartulli <ordex@autistici.org> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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- 05 7月, 2011 1 次提交
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由 Sven Eckelmann 提交于
The version number of modules build outside of the tree can get revision numbers added. This is useful to give hints about the revision of a distribution package and the used patchset. The prepended source number or branch name doesn't add any additional information which would help to identify problems and can therefore be omitted. Signed-off-by: NSven Eckelmann <sven@narfation.org> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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- 20 6月, 2011 4 次提交
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由 Antonio Quartulli 提交于
The gateway election mechanism has been a little revised. Now the gw_election is trigered by an atomic_t flag (gw_reselect) which is set to 1 in case of election needed, avoding to set curr_gw to NULL. Signed-off-by: NAntonio Quartulli <ordex@autistici.org> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NSven Eckelmann <sven@narfation.org>
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由 Antonio Quartulli 提交于
The local and the global translation-tables are now lock free and rcu protected. Signed-off-by: NAntonio Quartulli <ordex@autistici.org> Acked-by: NSimon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: NSven Eckelmann <sven@narfation.org>
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由 Antonio Quartulli 提交于
With the current client announcement implementation, in case of roaming, an update is triggered on the new AP serving the client. At that point the new information is spread around by means of the OGM broadcasting mechanism. Until this operations is not executed, no node is able to correctly route traffic towards the client. This obviously causes packet drops and introduces a delay in the time needed by the client to recover its connections. A new packet type called ROAMING_ADVERTISEMENT is added to account this issue. This message is sent in case of roaming from the new AP serving the client to the old one and will contain the client MAC address. In this way an out-of-OGM update is immediately committed, so that the old node can update its global translation table. Traffic reaching this node will then be redirected to the correct destination utilising the fresher information. Thus reducing the packet drops and the connection recovery delay. Signed-off-by: NAntonio Quartulli <ordex@autistici.org> Signed-off-by: NSven Eckelmann <sven@narfation.org>
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由 Antonio Quartulli 提交于
The client announcement mechanism informs every mesh node in the network of any connected non-mesh client, in order to find the path towards that client from any given point in the mesh. The old implementation was based on the simple idea of appending a data buffer to each OGM containing all the client MAC addresses the node is serving. All other nodes can populate their global translation tables (table which links client MAC addresses to node addresses) using this MAC address buffer and linking it to the node's address contained in the OGM. A node that wants to contact a client has to lookup the node the client is connected to and its address in the global translation table. It is easy to understand that this implementation suffers from several issues: - big overhead (each and every OGM contains the entire list of connected clients) - high latencies for client route updates due to long OGM trip time and OGM losses The new implementation addresses these issues by appending client changes (new client joined or a client left) to the OGM instead of filling it with all the client addresses each time. In this way nodes can modify their global tables by means of "updates", thus reducing the overhead within the OGMs. To keep the entire network in sync each node maintains a translation table version number (ttvn) and a translation table checksum. These values are spread with the OGM to allow all the network participants to determine whether or not they need to update their translation table information. When a translation table lookup is performed in order to send a packet to a client attached to another node, the destination's ttvn is added to the payload packet. Forwarding nodes can compare the packet's ttvn with their destination's ttvn (this node could have a fresher information than the source) and re-route the packet if necessary. This greatly reduces the packet loss of clients roaming from one AP to the next. Signed-off-by: NAntonio Quartulli <ordex@autistici.org> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NSven Eckelmann <sven@narfation.org>
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- 30 5月, 2011 1 次提交
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由 Sven Eckelmann 提交于
batman-adv uses pointers which are marked as const and should not violate that type qualifier by passing it to functions which force a cast to the non-const version. Signed-off-by: NSven Eckelmann <sven@narfation.org>
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- 08 5月, 2011 3 次提交
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由 Antonio Quartulli 提交于
To be coherent, all the functions/variables/constants have been renamed to the TranslationTable style Signed-off-by: NAntonio Quartulli <ordex@autistici.org> Signed-off-by: NSven Eckelmann <sven@narfation.org>
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由 Sven Eckelmann 提交于
hardif_list_lock is unneccessary because we already ensure that no multiple admin operations can take place through rtnl_lock. hardif_list_lock only adds additional overhead and complexity. Critical functions now check whether they are called with rtnl_lock using ASSERT_RTNL. It indirectly fixes the problem that orig_hash_del_if() expects that only one interface is deleted from hardif_list at a time, but hardif_remove_interfaces() removes all at once and then calls orig_hash_del_if(). Reported-by: NLinus Lüssing <linus.luessing@web.de> Signed-off-by: NSven Eckelmann <sven@narfation.org>
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由 Marek Lindner 提交于
The bridge loop detection for batman-adv allows the bat0 interface to be bridged into an ethernet segment which other batman-adv nodes are connected to. In order to also allow multiple VLANs on top of the bat0 interface to be bridged into the ethernet segment this patch extends the aforementioned bridge loop detection. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NSven Eckelmann <sven@narfation.org>
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- 05 3月, 2011 4 次提交
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由 Marek Lindner 提交于
Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Marek Lindner 提交于
Batman-adv works with "hard interfaces" as well as "soft interfaces". The new name should better make clear which kind of interfaces this list stores. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Marek Lindner 提交于
Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Marek Lindner 提交于
Note: The function compare_ether_addr() provided by the Linux kernel requires aligned memory. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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- 12 2月, 2011 1 次提交
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由 Linus Lüssing 提交于
types.h is included by main.h, which is included at the beginning of any other c-file anyway. Therefore this commit removes those duplicate inclussions. Signed-off-by: NLinus Lüssing <linus.luessing@ascom.ch> Signed-off-by: NSven Eckelmann <sven@narfation.org>
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- 31 1月, 2011 1 次提交
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由 Sven Eckelmann 提交于
Signed-off-by: NSven Eckelmann <sven@narfation.org>
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- 17 12月, 2010 1 次提交
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由 Sven Eckelmann 提交于
B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is a routing protocol for multi-hop ad-hoc mesh networks. The networks may be wired or wireless. See http://www.open-mesh.org/ for more information and user space tools. Signed-off-by: NSven Eckelmann <sven@narfation.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 30 11月, 2010 5 次提交
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由 Sven Eckelmann 提交于
linux/etherdevice.h already provides functions to classify different ethernet addresses. These inlineable functions should be used instead of custom functions. The check for multicast together with multicast can also be replaced with a single test for multicast because for every ethernet address x following is always true: is_broadcast_ether_addr(x) => is_multicast_ether_addr(x) or when looking more at the implementation: (FF:FF:FF:FF:FF:FF == x) => [(01:00:00:00:00:00 & x) != 00:00:00:00:00:00] Reported-by: NTobias Klauser <tklauser@distanz.ch> Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Marek Lindner 提交于
Via the /sys filesystem you can change the gateway mode of a node using gw_mode. Adjustments to it can be done using gw_bandwidth for server mode and gw_sel_class for client mode. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> [sven.eckelmann@gmx.de: Rework on top of current version] Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Sven Eckelmann 提交于
Function pointers cannot be inlined by a compiler and thus always has the overhead of an call. hashdata_choose_cb's are one of the most often called function pointers and its overhead must kept relative low. As first step, every function which uses this function pointer takes it as parameter instead of storing it inside the hash abstraction structure. This not generate any performance gain right now. The called functions must also be able to be inlined by the calling functions to enable inlining of the function pointer. Reported-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Sven Eckelmann 提交于
Function pointers cannot be inlined by a compiler and thus always has the overhead of an call. hashdata_compare_cb's are one of the most often called function pointers and its overhead must kept relative low. As first step, every function which uses this function pointer takes it as parameter instead of storing it inside the hash abstraction structure. This not generate any performance gain right now. The called functions must also be able to be inlined by the calling functions to enable inlining of the function pointer. Reported-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Marek Lindner 提交于
By connecting multiple batman-adv mesh nodes to the same ethernet segment a loop can be created when the soft-interface is bridged into that ethernet segment. A simple visualization of the loop involving the most common case - a LAN as ethernet segment: node1 <-- LAN --> node2 | | wifi <-- mesh --> wifi Packets from the LAN (e.g. ARP broadcasts) will circle forever from node1 or node2 over the mesh back into the LAN. This patch adds the functionality to detect other batman-adv nodes connected to the LAN and select a 'gateway' to talk to the non-batman-adv devices on this LAN. All traffic from and to the mesh will be handled by this gateway to avoid the loop. OGMs received via the soft-interface are interpreted as 'port announcements' to locate potential batman-adv nodes. The patch can also deal with vlans on top of batX and offers a list of LAN neighbors via debugfs. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> [sven.eckelmann@gmx.de: Rework on top of current version] Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 11 11月, 2010 1 次提交
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由 Greg Kroah-Hartman 提交于
This reverts commit 5712dc7f. Turns out the batman maintainers didn't like the implementation of it, and the original author was going to rework it to meet their approval, and I applied it without fully realizing all of this. My fault. Cc: Marek Lindner <lindner_marek@yahoo.de> Cc: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 10 11月, 2010 1 次提交
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由 Tobias Klauser 提交于
Replace custom ethernet address check functions by calls to the helpers in linux/etherdevice.h In one case where the address was tested for broadcast and multicast address, the broadcast address check can be omitted as broadcast is also a multicast address. The patch is only compile-tested. Cc: Marek Lindner <lindner_marek@yahoo.de> Cc: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by: NTobias Klauser <tklauser@distanz.ch> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 21 10月, 2010 1 次提交
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由 Andy Shevchenko 提交于
Since all *printf() methods in the kernel understand '%pM' modifier the conversion to the string is useless beforehand. Additionally this patch decreases batman_if structure by 20 bytes. Signed-off-by: NAndy Shevchenko <andy.shevchenko@gmail.com> Cc: Marek Lindner <lindner_marek@yahoo.de> Cc: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 21 9月, 2010 1 次提交
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由 Sven Eckelmann 提交于
synchronize_rcu respective synchronize_net only waits for the rcu grace period to elapse and we may fail to finish the calls which were made to call_rcu in that time. In result the module could be unloaded during the execution of the RCU callbacks. rcu_barrier[1] will now wait for all outstanding RCU callbacks to finish before continuing. [1] Documentation/RCU/rcubarrier.txt Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 15 9月, 2010 2 次提交
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由 Sven Eckelmann 提交于
gw_list_lock, gw_list and curr_gw are currently unused members of struct bat_priv. They will be readded when gateway support is really implemented. Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Linus Lüssing 提交于
During the module shutdown procedure in batman_exit(), a rcu callback is being scheduled (batman_exit -> hardif_remove_interfaces -> hardif_remove_interfae -> call_rcu). However, when the kernel unloads the module, the rcu callback might not have been executed yet, resulting in a "unable to handle kernel paging request" in __rcu_process_callback afterwards, causing the kernel to freeze. The synchronize_net and synchronize_rcu in mesh_free are currently called before the call_rcu in hardif_remove_interface and have no real effect on it. Therefore, we should always flush all rcu callback functions scheduled during the shutdown procedure using synchronize_net. The call to synchronize_rcu can be omitted because synchronize_net already calls it. Signed-off-by: NLinus Lüssing <linus.luessing@web.de> Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 05 9月, 2010 4 次提交
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由 Marek Lindner 提交于
This patch removes all remaining global variables and includes the necessary bits into the bat_priv structure. It is the last remaining piece to allow multiple concurrent mesh clouds on the same device. A few global variables have been rendered obsolete during the process and have been removed entirely. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> [sven.eckelmann@gmx.de: Rework on top of current version] Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Marek Lindner 提交于
This patch replaces the static bat0 interface with a dynamic/abstracted approach. It is now possible to create multiple batX interfaces by assigning hard interfaces to them. Each batX interface acts as an independent mesh network. A soft interface is removed once no hard interface references it any longer. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> [sven.eckelmann@gmx.de: Rework on top of current version] Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Marek Lindner 提交于
Batman-adv globally registered the batman-adv packet type and installed a hook to batman_skb_recv(). Each interface receiving a packet with that type would end up in this function which then had to loop through all batman-adv internal interface structures to find the its meta data. The more interfaces a system had the longer the loops might take. Each and every packet goes through this function making it a performance critical loop. This patch installs the hook for each activated interface. The called batman_skb_recv() can distinguish these calls, therefore avoiding the loop through the interface structures. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> [sven.eckelmann@gmx.de: Rework on top of current version] Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Simon Wunderlich 提交于
to support multiple mesh devices later, we need to move global variables like the queues into corresponding private structs bat_priv of the soft devices. Note that this patch still has a lot of FIXMEs and depends on the global soft_device variable. This should be resolved later, e.g. by referencing the parent soft device in batman_if. Signed-off-by: NSimon Wunderlich <siwu@hrz.tu-chemnitz.de> [sven.eckelmann@gmx.de: Rework on top of current version] Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 24 8月, 2010 1 次提交
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由 Marek Lindner 提交于
Earlier batman-adv versions would only create a batman_if struct after a corresponding interface had been activated by a user. Now each existing system interface has a batman_if struct and has to be checked by verifying the IF_ACTIVE flag. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 23 7月, 2010 1 次提交
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由 Randy Dunlap 提交于
Fix two staging drivers to use module_init()/module_exit() instead of default init_module() and cleanup_module() function names so that there are no name conflicts when both are built-in. drivers/staging/dt3155/built-in.o: In function `cleanup_module': (.text+0xc0): multiple definition of `cleanup_module' drivers/staging/batman-adv/built-in.o:(.text+0x330): first defined here drivers/staging/dt3155/built-in.o: In function `init_module': (.text+0xe60): multiple definition of `init_module' drivers/staging/batman-adv/built-in.o:(.text+0x400): first defined here Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> [sven.eckelmann@gmx.de: Mark module init and exit functions as static] Signed-off-by: NSven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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