- 22 3月, 2014 3 次提交
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由 Linus Lüssing 提交于
If the soft interface of a node is not part of a bridge then a node announces a new multicast TVLV: The existence of this TVLV signalizes that this node is announcing all of its multicast listeners via the translation table infrastructure. Signed-off-by: NLinus Lüssing <linus.luessing@web.de> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Linus Lüssing 提交于
With this patch a node which has no bridge interface on top of its soft interface announces its local multicast listeners via the translation table. Signed-off-by: NLinus Lüssing <linus.luessing@web.de> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Antonio Quartulli 提交于
On some architectures ether_addr_copy() is slightly faster than memcpy() therefore use the former when possible. Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch>
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- 16 1月, 2014 1 次提交
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由 Marek Lindner 提交于
Batman-adv prepends a full ethernet header in addition to its own header. This has to be reflected in the MTU calculation, especially since the value is used to set dev->hard_header_len. Introduced by 411d6ed9 ("batman-adv: consider network coding overhead when calculating required mtu") Reported-by: Ncmsv <cmsv@wirelesspt.net> Reported-by: NMartin Hundebøll <martin@hundeboll.net> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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- 12 1月, 2014 2 次提交
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由 Simon Wunderlich 提交于
Signed-off-by: NSimon Wunderlich <sw@simonwunderlich.de> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Simon Wunderlich 提交于
With unrolling the batadv_header into the respective structures, the offsetof checks are now useless. Instead, add build checks for all packet types which go over the wire to avoid problems with wrong sizes or compatibility issues on some architectures which don't use every day. Signed-off-by: NSimon Wunderlich <sw@simonwunderlich.de> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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- 09 1月, 2014 2 次提交
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由 Antonio Quartulli 提交于
The AP isolation status may be evaluated in different spots. Create an helper function to avoid code duplication. Signed-off-by: NAntonio Quartulli <antonio@open-mesh.com> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch>
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由 Antonio Quartulli 提交于
As suggested by checkpatch, remove all the references to the FSF address since the kernel already has one reference in its documentation. In this way it is easier to update it in case of future changes. Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch>
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- 28 12月, 2013 2 次提交
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由 Antonio Quartulli 提交于
struct batadv_icmp_header currently has a size of 17, which will be padded to 20 on some architectures. Fix this by unrolling the header into the parent structures. Moreover keep the ICMP parsing functions as generic as they are now by using a stub icmp_header struct during packet parsing. Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch>
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由 Simon Wunderlich 提交于
The size of the batadv_header of 3 is problematic on some architectures which automatically pad all structures to a 32 bit boundary. To not lose performance by packing this struct, better embed it into the various host structures. Reported-by: NRussell King <linux@arm.linux.org.uk> Signed-off-by: NSimon Wunderlich <sw@simonwunderlich.de> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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- 23 10月, 2013 2 次提交
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由 Antonio Quartulli 提交于
Each routing protocol has its own metric semantic and therefore is the protocol itself the only component able to compare two metrics to check their "similarity". This new API allows each routing protocol to implement its own logic and make the external code protocol agnostic. Signed-off-by: NAntonio Quartulli <antonio@open-mesh.com> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Antonio Quartulli 提交于
This new API allows to compare the two neighbours based on the metric avoiding the user to deal with any routing algorithm specific detail Signed-off-by: NAntonio Quartulli <antonio@open-mesh.com> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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- 19 10月, 2013 3 次提交
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由 Antonio Quartulli 提交于
A TT response may be prepared and sent while the local or global translation table is getting updated. The worst case is when one of the tables is accessed after its content has been recently updated but the metadata (TTVN/CRC) has not yet. In this case the reader will get a table content which does not match the TTVN/CRC. This will lead to an inconsistent state and so to a TT recovery. To avoid entering this situation, put a lock around those TT operations recomputing the metadata and around the TT Response creation (the latter is the only reader that accesses the metadata together with the table). Signed-off-by: NAntonio Quartulli <antonio@open-mesh.com> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Antonio Quartulli 提交于
Since batman-adv is now fully VLAN-aware, a proper framework able to handle per-vlan-interface attributes is needed. Those attributes will affect the associated VLAN interface only, rather than the real soft_iface (which would result in every vlan interface having the same attribute configuration). To make the code simpler and easier to extend, attributes associated to the standalone soft_iface are now treated like belonging to yet another vlan having a special vid. This vid is different from the others because it is made up by all zeros and the VLAN_HAS_TAG bit is not set. Signed-off-by: NAntonio Quartulli <antonio@open-mesh.com> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Antonio Quartulli 提交于
To make the translation table code VLAN-aware, each entry must carry the VLAN ID which it belongs to. This patch adds such attribute to the related TT structures. Signed-off-by: NAntonio Quartulli <antonio@open-mesh.com> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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- 12 10月, 2013 4 次提交
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由 Marek Lindner 提交于
The module prints a warning when the MTU on the hard interface is too small to transfer payload traffic without fragmentation. The required MTU is calculated based on the encapsulation header size. If network coding is compild into the module its header size is taken into account as well. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Antonio Quartulli 提交于
the icmp and the icmp_rr packets share the same initial fields since they use the same code to be processed and forwarded. Extract the common fields and put them into a separate struct so that future ICMP packets can be easily added without bloating the packet definition. However, keep the seqno field outside of the newly created common header because future ICMP types may require a bigger sequence number space. This change breaks compatibility due to fields reordering in the ICMP headers. Signed-off-by: NAntonio Quartulli <antonio@open-mesh.com> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Martin Hundebøll 提交于
Fragments arriving at their destination are buffered for later merge. Merged packets are passed to the main receive function as had they never been fragmented. Fragments are forwarded without merging if the MTU of the outgoing interface is smaller than the size of the merged packet. Signed-off-by: NMartin Hundebøll <martin@hundeboll.net> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Martin Hundebøll 提交于
Remove the existing fragmentation code before adding the new version and delete unicast.{h,c}. batadv_unicast_send_skb() is moved to send.c and renamed to batadv_send_skb_unicast(). fragmentation entry in sysfs (bat_priv->fragmentation) is kept for use in the new fragmentation code. BATADV_UNICAST_FRAG packet type is renamed to BATADV_FRAG for use in the new fragmentation code. Signed-off-by: NMartin Hundebøll <martin@hundeboll.net> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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- 10 10月, 2013 7 次提交
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由 Simon Wunderlich 提交于
Reordering the packet type numbers allows us to handle unicast packets in a general way - even if we don't know the specific packet type, we can still forward it. There was already code handling this for a couple of unicast packets, and this is the more generalized version to do that. Signed-off-by: NSimon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Simon Wunderlich 提交于
Since we removed the __packed from most of the packets, we should make sure that the offset generated by the compiler are correct for sent/received data. Signed-off-by: NSimon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Simon Wunderlich 提交于
This is replaced by a userspace program, we don't need this functionality to bloat the kernel. Signed-off-by: NSimon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Marek Lindner 提交于
Instead of generating roaming specific packets the TVLV unicast API is used to send roaming information. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Marek Lindner 提交于
Instead of generating TT specific packets the TVLV unicast API is used to send translation table data. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Marek Lindner 提交于
Prior to this patch batman-adv read the advertised uplink bandwidth from userspace and compressed this information into a single byte called "gateway class". Now the download & upload bandwidth information is sent as-is. No userspace change is necessary since the sysfs API always allowed to specify a bandwidth. Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NSpyros Gasteratos <morfeas3000@gmail.com> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Marek Lindner 提交于
The goal is to provide the infrastructure for sending, receiving and parsing information 'containers' while preserving backward compatibility. TVLV (based on the commonly known Type Length Value technique) was chosen as the format for those containers. Even if a node does not know the tvlv type of a certain container it can simply skip the current container and proceed with the next. Past experience has shown features evolve over time, so a 'version' field was added right from the start to allow differentiating between feature variants - hence the name: T(ype) V(ersion) L(ength) V(alue). This patch introduces the basic TVLV infrastructure: * register / unregister tvlv containers to be sent with each OGM (on primary interfaces only) * register / unregister callback handlers to be called upon finding the corresponding tvlv type in a tvlv buffer * unicast tvlv send / receive API calls Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NSpyros Gasteratos <morfeas3000@gmail.com> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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- 02 10月, 2013 1 次提交
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由 Matthias Schiffer 提交于
batman-adv saves its table of packet handlers as a global state, so handlers must be set up only once (and setting them up a second time will fail). The recently-added network coding support tries to set up its handler each time a new softif is registered, which obviously fails when more that one softif is used (and in consequence, the softif creation fails). Fix this by splitting up batadv_nc_init into batadv_nc_init (which is called only once) and batadv_nc_mesh_init (which is called for each softif); in addition batadv_nc_free is renamed to batadv_nc_mesh_free to keep naming consistent. Signed-off-by: NMatthias Schiffer <mschiffer@universe-factory.net> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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- 28 8月, 2013 1 次提交
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由 Simon Wunderlich 提交于
The skb priority field may help the wireless driver to choose the right queue (e.g. WMM queues). This should be set in batman-adv, as this information is only available here. This patch adds support for IPv4/IPv6 DS fields and VLAN PCP. Note that only VLAN PCP is used if a VLAN header is present. Also initially set TC_PRIO_CONTROL only for self-generated packets, and keep the priority set by higher layers. Signed-off-by: NSimon Wunderlich <simon@open-mesh.com> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <ordex@autistici.org>
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- 24 6月, 2013 1 次提交
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由 Wedson Almeida Filho 提交于
Callers of skb_seq_read() are currently forced to call skb_abort_seq_read() even when consuming all the data because the last call to skb_seq_read (the one that returns 0 to indicate the end) fails to unmap the last fragment page. With this patch callers will be allowed to traverse the SKB data by calling skb_prepare_seq_read() once and repeatedly calling skb_seq_read() as originally intended (and documented in the original commit 677e90ed), that is, only call skb_abort_seq_read() if the sequential read is actually aborted. Signed-off-by: NWedson Almeida Filho <wedsonaf@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 5月, 2013 1 次提交
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由 Martin Hundebøll 提交于
On errors in batadv_mesh_init(), bat_counters will be freed in both batadv_mesh_free() and batadv_softif_init_late(). This patch fixes this by returning earlier from batadv_softif_init_late() in case of errors in batadv_mesh_init() and by setting bat_counters to NULL after freeing. Signed-off-by: NMartin Hundebøll <martin@hundeboll.net> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <ordex@autistici.org>
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- 09 5月, 2013 2 次提交
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由 Antonio Quartulli 提交于
nc_worker accesses the originator table during its periodic work, but since the originator table is freed before stopping the worker this leads to a global protection fault. Fix this by killing the worker (in nc_free) before freeing the originator table. Moreover tidy up the entire clean up routine by running all the subcomponents freeing procedures first and then killing the TT and the originator tables at the end. Signed-off-by: NAntonio Quartulli <ordex@autistici.org> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Marek Lindner 提交于
batadv_param_set_ra() strips the trailing '\n' from the supplied string buffer without checking the length of the buffer first. This patches avoids random memory access and associated potential crashes. Reported-by: NSasha Levin <sasha.levin@oracle.com> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <ordex@autistici.org>
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- 18 4月, 2013 1 次提交
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由 Antonio Quartulli 提交于
On a multi-mesh node (a node running more than one batman-adv virtual interface) batadv_is_my_mac() has to check MAC addresses of hard interfaces belonging to the current mesh only. Signed-off-by: NAntonio Quartulli <ordex@autistici.org> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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- 27 3月, 2013 2 次提交
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由 Antonio Quartulli 提交于
As reported by checkpatch, seq_puts has to be preferred with respect to seq_printf when the format is a constant string (no va_args) Signed-off-by: NAntonio Quartulli <ordex@autistici.org> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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由 Sven Eckelmann 提交于
The sysfs configuration interface of batman-adv to add/remove soft-interfaces is not deadlock free and doesn't follow the currently common way to create new virtual interfaces. An additional interface though rtnl_link is introduced which provides easy device creation/deletion with tools like "ip": $ ip link add dev bat0 type batadv $ ip link del dev bat0 Signed-off-by: NSven Eckelmann <sven@narfation.org> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <ordex@autistici.org>
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- 14 3月, 2013 1 次提交
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由 Martin Hundebøll 提交于
Network coding exploits the 802.11 shared medium to allow multiple packets to be sent in a single transmission. In brief, a relay can XOR two packets, and send the coded packet to two destinations. The receivers can decode one of the original packets by XOR'ing the coded packet with the other original packet. This will lead to increased throughput in topologies where two packets cross one relay. In a simple topology with three nodes, it takes four transmissions without network coding to get one packet from Node A to Node B and one from Node B to Node A: 1. Node A ---- p1 ---> Node R Node B 2. Node A Node R <--- p2 ---- Node B 3. Node A <--- p2 ---- Node R Node B 4. Node A Node R ---- p1 ---> Node B With network coding, the relay only needs one transmission, which saves us one slot of valuable airtime: 1. Node A ---- p1 ---> Node R Node B 2. Node A Node R <--- p2 ---- Node B 3. Node A <- p1 x p2 - Node R - p1 x p2 -> Node B The same principle holds for a topology including five nodes. Here the packets from Node A and Node B are overheard by Node C and Node D, respectively. This allows Node R to send a network coded packet to save one transmission: Node A Node B | \ / | | p1 p2 | | \ / | p1 > Node R < p2 | | | / \ | | p1 x p2 p1 x p2 | v / \ v / \ Node C < > Node D More information is available on the open-mesh.org wiki[1]. This patch adds the initial code to support network coding in batman-adv. It sets up a worker thread to do house keeping and adds a sysfs file to enable/disable network coding. The feature is disabled by default, as it requires a wifi-driver with working promiscuous mode, and also because it adds a small delay at each hop. [1] http://www.open-mesh.org/projects/batman-adv/wiki/CatwomanSigned-off-by: NMartin Hundebøll <martin@hundeboll.net> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de> Signed-off-by: NAntonio Quartulli <ordex@autistici.org>
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- 28 2月, 2013 1 次提交
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由 Sasha Levin 提交于
I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: NPeter Senna Tschudin <peter.senna@gmail.com> Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: NSasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 19 1月, 2013 1 次提交
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由 Antonio Quartulli 提交于
Signed-off-by: NAntonio Quartulli <ordex@autistici.org> Signed-off-by: NMarek Lindner <lindner_marek@yahoo.de>
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- 21 11月, 2012 1 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> Signed-off-by: NAntonio Quartulli <ordex@autistici.org>
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- 08 11月, 2012 1 次提交
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由 Antonio Quartulli 提交于
Since batman-adv cannot inter-operate with the host ARP table, this patch introduces a batman-adv private storage for ARP entries exchanged within DAT. This storage will represent the node local cache in the DAT protocol. Signed-off-by: NAntonio Quartulli <ordex@autistici.org>
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