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2021-08-08batman-adv: Drop NULL check before dropping referencesSven Eckelmann1-20/+10
The check if a batman-adv related object is NULL or not is now directly in the batadv_*_put functions. It is not needed anymore to perform this check outside these function: The changes were generated using a coccinelle semantic patch: @@ expression E; @@ - if (likely(E != NULL)) ( batadv_backbone_gw_put | batadv_claim_put | batadv_dat_entry_put | batadv_gw_node_put | batadv_hardif_neigh_put | batadv_hardif_put | batadv_nc_node_put | batadv_nc_path_put | batadv_neigh_ifinfo_put | batadv_neigh_node_put | batadv_orig_ifinfo_put | batadv_orig_node_put | batadv_orig_node_vlan_put | batadv_softif_vlan_put | batadv_tp_vars_put | batadv_tt_global_entry_put | batadv_tt_local_entry_put | batadv_tt_orig_list_entry_put | batadv_tt_req_node_put | batadv_tvlv_container_put | batadv_tvlv_handler_put )(E); Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2021-05-17batman-adv: Always send iface index+name in genlmsgSven Eckelmann1-0/+10
The batman-adv netlink messages often contain the interface index and interface name in the same message. This makes it easy for the receiver to operate on the incoming data when it either needs to print something or needs to operate on the interface index. But one of the attributes was missing for: * neighbor table dumps * originator table dumps * gateway list dumps * query of hardif information * query of vid information The userspace therefore had to implement special workarounds using SIOCGIFNAME or SIOCGIFINDEX depending on what was actually provided. Providing both information simplifies the userspace code massively without adding a lot of extra overhead in the kernel portion. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2021-02-06batman-adv: Drop publication years from copyright infoSven Eckelmann1-1/+1
The batman-adv source code was using the year of publication (to net-next) as "last" year for the copyright statement. The whole source code mentioned in the MAINTAINERS "BATMAN ADVANCED" section was handled as a single entity regarding the publishing year. This avoided having outdated (in sense of year information - not copyright holder) publishing information inside several files. But since the simple "update copyright year" commit (without other changes) in the file was not well received in the upstream kernel, the option to not have a copyright year (for initial and last publication) in the files are chosen instead. More detailed information about the years can still be retrieved from the SCM system. Signed-off-by: Sven Eckelmann <sven@narfation.org> Acked-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2020-12-04batman-adv: Drop deprecated debugfs supportSven Eckelmann1-237/+0
The debugfs support in batman-adv was marked as deprecated by the commit 00caf6a2b318 ("batman-adv: Mark debugfs functionality as deprecated") and scheduled for removal in 2021. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2020-12-04batman-adv: Drop deprecated sysfs supportSven Eckelmann1-9/+0
The sysfs in batman-adv support was marked as deprecated by the commit 42cdd521487f ("batman-adv: ABI: Mark sysfs files as deprecated") and scheduled for removal in 2021. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2020-12-04batman-adv: Add new include for min/max helpersSven Eckelmann1-0/+1
The commit b296a6d53339 ("kernel.h: split out min()/max() et al. helpers") moved the min/max helper functionality from kernel.h to minmax.h. Adjust the kernel code accordingly to avoid fragile indirect includes. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2020-01-01batman-adv: Update copyright years for 2020Sven Eckelmann1-1/+1
Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2019-11-03batman-adv: Axe 'aggr_list_lock'Christophe JAILLET1-1/+0
'aggr_list.lock' can safely be used in place of another explicit spinlock when access to 'aggr_list' has to be guarded. This avoids to take 2 locks, knowing that the 2nd one is always successful. Now that the 'aggr_list.lock' is handled explicitly, the lock-free __sbk_something() variants should be used when dealing with 'aggr_list'. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2019-08-04batman-adv: BATMAN_V: introduce per hard-iface OGMv2 queuesLinus Lüssing1-0/+7
In preparation for the OGMv2 packet aggregation, hold OGMv2 packets for up to BATADV_MAX_AGGREGATION_MS milliseconds (100ms) on per hard-interface queues, before transmitting. This allows us to later squash multiple OGMs into a single frame and transmission for reduced overhead. Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2019-05-25batman-adv: Use includes instead of fwdeclsSven Eckelmann1-2/+1
While it can be slightly beneficial for the build performance to use forward declarations instead of includes, the handling of them together with changes in the included headers makes it unnecessary complicated and fragile. Just replace them with actual includes since some parts (hwmon, ..) of the kernel even request avoidance of forward declarations and net/ is mostly not using them in *.c file. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2019-03-25batman-adv: Drop license boilerplateSven Eckelmann1-12/+0
All files got a SPDX-License-Identifier with commit 7db7d9f369a4 ("batman-adv: Add SPDX license identifier above copyright header"). All the required information about the license conditions can be found in LICENSES/. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2019-01-04batman-adv: Update copyright years for 2019Sven Eckelmann1-1/+1
Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2018-11-12batman-adv: Add inconsistent gateway netlink dump detectionSven Eckelmann1-9/+17
The netlink dump functionality transfers a large number of entries from the kernel to userspace. It is rather likely that the transfer has to interrupted and later continued. During that time, it can happen that either new entries are added or removed. The userspace could than either receive some entries multiple times or miss entries. Commit 670dc2833d14 ("netlink: advertise incomplete dumps") introduced a mechanism to inform userspace about this problem. Userspace can then decide whether it is necessary or not to retry dumping the information again. The netlink dump functions have to be switched to exclusive locks to avoid changes while the current message is prepared. And an external generation sequence counter is introduced which tracks all modifications of the list. Reported-by: Matthias Schiffer <mschiffer@universe-factory.net> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2018-06-23batman-adv: Fix bat_v best gw refcnt after netlink dumpSven Eckelmann1-1/+3
A reference for the best gateway is taken when the list of gateways in the mesh is sent via netlink. This is necessary to check whether the currently dumped entry is the currently selected gateway or not. This information is then transferred as flag BATADV_ATTR_FLAG_BEST. After the comparison of the current entry is done, batadv_v_gw_dump_entry() has to decrease the reference counter again. Otherwise the reference will be held and thus prevents a proper shutdown of the batman-adv interfaces (and some of the interfaces enslaved in it). Fixes: b71bb6f924fe ("batman-adv: add B.A.T.M.A.N. V bat_gw_dump implementations") Signed-off-by: Sven Eckelmann <sven@narfation.org> Acked-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2018-03-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+1
All of the conflicts were cases of overlapping changes. In net/core/devlink.c, we have to make care that the resouce size_params have become a struct member rather than a pointer to such an object. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-26batman-adv: Update copyright years for 2018Sven Eckelmann1-1/+1
Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2018-02-25batman-adv: Ignore invalid batadv_v_gw during netlink sendSven Eckelmann1-1/+1
The function batadv_v_gw_dump stops the processing loop when batadv_v_gw_dump_entry returns a non-0 return code. This should only happen when the buffer is full. Otherwise, an empty message may be returned by batadv_gw_dump. This empty message will then stop the netlink dumping of gateway entries. At worst, not a single entry is returned to userspace even when plenty of possible gateways exist. Fixes: b71bb6f924fe ("batman-adv: add B.A.T.M.A.N. V bat_gw_dump implementations") Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-12-21batman-adv: Convert packet.h to uapi headerSven Eckelmann1-1/+1
The header file is used by different userspace programs to inject packets or to decode sniffed packets. It should therefore be available to them as userspace header. Also other components in the kernel (like the flow dissector) require access to the packet definitions to be able to decode ETH_P_BATMAN ethernet packets. Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-20Merge tag 'batadv-next-for-davem-20171220' of ↵David S. Miller1-25/+24
git://git.open-mesh.org/linux-merge Simon Wunderlich says: ==================== This feature/cleanup patchset includes the following patches: - bump version strings, by Simon Wunderlich - de-inline hash functions to save memory footprint, by Denys Vlasenko - Add License information to various files, by Sven Eckelmann (3 patches) - Change batman_adv.h from ISC to MIT, by Sven Eckelmann - Improve various includes, by Sven Eckelmann (5 patches) - Lots of kernel-doc work by Sven Eckelmann (8 patches) ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-15batman-adv: Use parentheses in function kernel-docSven Eckelmann1-25/+23
The documentation describing kernel-doc comments for functions ("How to format kernel-doc comments") uses parentheses at the end of the function name. Using this format allows to use a consistent style when adding documentation to a function and when referencing this function in a different kernel-doc section. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-12-15batman-adv: Add SPDX license identifier above copyright headerSven Eckelmann1-0/+1
The "Linux kernel licensing rules" require that each file has a SPDX license identifier as first line (and sometimes as second line). The FSFE REUSE practices [1] would also require the same tags but have no restrictions on the placement in the source file. Using the "Linux kernel licensing rules" is therefore also fulfilling the FSFE REUSE practices requirements at the same time. [1] https://reuse.software/practices/ Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-12-01batman-adv: Fix check of retrieved orig_gw in batadv_v_gw_is_eligibleSven Eckelmann1-1/+1
The batadv_v_gw_is_eligible function already assumes that orig_node is not NULL. But batadv_gw_node_get may have failed to find the originator. It must therefore be checked whether the batadv_gw_node_get failed and not whether orig_node is NULL to detect this error. Fixes: 50164d8f500f ("batman-adv: B.A.T.M.A.N. V - implement GW selection logic") Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com> Acked-by: Antonio Quartulli <a@unstable.cc> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-10-17batman-adv: Avoid spurious warnings from bat_v neigh_cmp implementationSven Eckelmann1-5/+4
The neighbor compare API implementation for B.A.T.M.A.N. V checks whether the neigh_ifinfo for this neighbor on a specific interface exists. A warning is printed when it isn't found. But it is not called inside a lock which would prevent that this information is lost right before batadv_neigh_ifinfo_get. It must therefore be expected that batadv_v_neigh_(cmp|is_sob) might not be able to get the requested neigh_ifinfo. A WARN_ON for such a situation seems not to be appropriate because this will only flood the kernel logs. The warnings must therefore be removed. Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-09-28batman-adv: Remove unnecessary parenthesesSven Eckelmann1-1/+1
checkpatch introduced with commit 63b7c73ec86b ("checkpatch: add --strict check for ifs with unnecessary parentheses") an additional test which identifies some unnecessary parentheses. Remove these unnecessary parentheses to avoid the warnings and to unify the coding style slightly more. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-05-23batman-adv: Replace a seq_puts() call by seq_putc() in two functionsMarkus Elfring1-1/+1
Two single characters (line breaks) should be put into a sequence. Thus use the corresponding function "seq_putc". This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-03-16Merge tag 'batadv-net-for-davem-20170316' of git://git.open-mesh.org/linux-mergeDavid S. Miller1-3/+11
Simon Wunderlich says: ==================== Here are two batman-adv bugfixes: - Keep fragments equally sized, avoids some problems with too small fragments, by Sven Eckelmann - Initialize gateway class correctly when BATMAN V is compiled in, by Sven Eckelmann ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-04batman-adv: Initialize gw sel_class via batadv_algoSven Eckelmann1-3/+11
The gateway selection class variable is shared between different algorithm versions. But the interpretation of the content is algorithm specific. The initialization is therefore also algorithm specific. But this was implemented incorrectly and the initialization for BATMAN_V always overwrote the value previously written for BATMAN_IV. This could only be avoided when BATMAN_V was disabled during compile time. Using a special batadv_algo hook for this initialization avoids this problem. Fixes: 50164d8f500f ("batman-adv: B.A.T.M.A.N. V - implement GW selection logic") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-01-26batman-adv: update copyright years for 2017Sven Eckelmann1-1/+1
Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-10-19batman-adv: Use proper name for gateway list headSven Eckelmann1-3/+3
The batman-adv codebase is using "list" for the list node (prev/next) and <list content descriptor>+"_list" for the head of a list. Not using this naming scheme can up in confusions when reading the code. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-10-19batman-adv: Remove needless init of variables on stackSven Eckelmann1-1/+1
Some variables are overwritten immediatelly in a functions. These don't have to be initialized to a specific value on the stack because the value will be overwritten before they will be used anywhere. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-08-09batman-adv: Allow to disable debugfs supportSven Eckelmann1-0/+12
The files provided by batman-adv via debugfs are currently converted to netlink. Tools which are not yet converted to use the netlink interface may still rely on the old debugfs files. But systems which already upgraded their tools can save some space by disabling this feature. The default configuration of batman-adv on amd64 can reduce the size of the module by around 11% when this feature is disabled. $ size net/batman-adv/batman-adv.ko* text data bss dec hex filename 150507 10395 4160 165062 284c6 net/batman-adv/batman-adv.ko.y 137106 7099 2112 146317 23b8d net/batman-adv/batman-adv.ko.n Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-08-09batman-adv: add B.A.T.M.A.N. V bat_gw_dump implementationsSven Eckelmann1-0/+125
Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-08-09batman-adv: add B.A.T.M.A.N. V bat_{orig, neigh}_dump implementationsMatthias Schiffer1-0/+340
Dump the algo V originators and neighbours. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Signed-off-by: Andrew Lunn <andrew@lunn.ch> [sven@narfation.org: Fix includes, fix algo_ops integration] Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2016-08-09batman-adv: B.A.T.M.A.N. V - implement GW selection logicAntonio Quartulli1-1/+222
Since the GW selection logic has been made routing protocol specific it is now possible for B.A.T.M.A.N V to have its own mechanism by providing the API implementation. Implement the GW specific API in the B.A.T.M.A.N. V protocol in order to provide a working GW selection mechanism. Signed-off-by: Antonio Quartulli <a@unstable.cc> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-08-09batman-adv: make the GW selection class algorithm specificAntonio Quartulli1-0/+34
The B.A.T.M.A.N. V algorithm uses a different metric compared to its predecessor and for this reason the logic used to compute the best Gateway is also changed. This means that the GW selection class fed to this logic has a semantics that depends on the algorithm being used. Make the parsing and printing routine of the GW selection class routing algorithm specific. Each algorithm can now parse (and print) this value independently. If no API is provided by any algorithm, the default is to use the current mechanism of considering such value like an integer between 1 and 255. Signed-off-by: Antonio Quartulli <a@unstable.cc> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-07-04batman-adv: split routing API data structure in subobjectsAntonio Quartulli1-10/+16
The routing API data structure contains several function pointers that can easily be grouped together based on the component they work with. Split the API in subobjects in order to improve definition readability. At the same time, remove the "bat_" prefix from the API object and its fields names. These are batman-adv private structs and there is no need to always prepend such prefix, which only makes function invocations much much longer. Signed-off-by: Antonio Quartulli <a@unstable.cc> Reviewed-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-06-30batman-adv: Fix bat_(iv|v) function declaration headerSven Eckelmann1-1/+2
The bat_algo.h had some functions declared which were not part of the bat_algo.c file. These are instead stored in bat_v.c and bat_iv_ogm.c. The declaration should therefore be also in bat_v.h and bat_iv_ogm,h to make them easier to find. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-06-30batman-adv: init ELP tweaking options only onceMarek Lindner1-5/+14
The ELP interval and throughput override interface settings are initialized with default settings on every time an interface is added to a mesh. This patch prevents this behavior by moving the configuration init to the interface detection routine which runs only once per interface. Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> [a@unstable.cc: move initialization to batadv_v_hardif_init] Signed-off-by: Antonio Quartulli <a@unstable.cc> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-06-30batman-adv: remove ogm_emit and ogm_schedule API callsAntonio Quartulli1-10/+0
The ogm_emit and ogm_schedule API calls were rather tight to the B.A.T.M.A.N. IV logic and therefore rather difficult to use with other algorithm implementations. Remove such calls and move the surrounding logic into the B.A.T.M.A.N. IV specific code. Signed-off-by: Antonio Quartulli <a@unstable.cc> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2016-05-18batman-adv: initialize ELP orig address on secondary interfacesMarek Lindner1-0/+10
This fix prevents nodes to wrongly create a 00:00:00:00:00:00 originator which can potentially interfere with the rest of the neighbor statistics. Fixes: d6f94d91f766 ("batman-adv: ELP - adding basic infrastructure") Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <a@unstable.cc>
2016-05-18batman-adv: make sure ELP/OGM orig MAC is updated on address changeAntonio Quartulli1-4/+22
When the MAC address of the primary interface is changed, update the originator address in the ELP and OGM skb buffers as well in order to reflect the change. Fixes: d6f94d91f766 ("batman-adv: ELP - adding basic infrastructure") Reported-by: Marek Lindner <marek@neomailbox.ch> Signed-off-by: Antonio Quartulli <a@unstable.cc>
2016-05-18batman-adv: Fix refcnt leak in batadv_v_neigh_*Sven Eckelmann1-7/+25
The functions batadv_neigh_ifinfo_get increase the reference counter of the batadv_neigh_ifinfo. These have to be reduced again when the reference is not used anymore to correctly free the objects. Fixes: 9786906022eb ("batman-adv: B.A.T.M.A.N. V - implement neighbor comparison API calls") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <a@unstable.cc>
2016-05-18batman-adv: Avoid nullptr derefence in batadv_v_neigh_is_sobSven Eckelmann1-0/+4
batadv_neigh_ifinfo_get can return NULL when it cannot find (even when only temporarily) anymore the neigh_ifinfo in the list neigh->ifinfo_list. This has to be checked to avoid kernel Oopses when the ifinfo is dereferenced. This a situation which isn't expected but is already handled by functions like batadv_v_neigh_cmp. The same kind of warning is therefore used before the function returns without dereferencing the pointers. Fixes: 9786906022eb ("batman-adv: B.A.T.M.A.N. V - implement neighbor comparison API calls") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <a@unstable.cc>
2016-05-04Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-mergeDavid S. Miller1-5/+4
Antonio Quartulli says: ==================== pull request: batman-adv 20160504 In this pull request you have: - two changes to the MAINTAINERS file where one marks our mailing list as moderated and the other adds a missing documentation file - kernel-doc fixes - code refactoring and various cleanups ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03batman-adv: use static string for table headersAntonio Quartulli1-5/+4
Use a static string when showing table headers rather then a nonsense parametric one with fixed arguments. It is easier to grep and it does not need to be recomputed at runtime each time. Reported-by: Joe Perches <joe@perches.com> Signed-off-by: Antonio Quartulli <a@unstable.cc> [sven@narfation.org: fix conflicts with current version] Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2016-04-29batman-adv: B.A.T.M.A.N V - make sure iface is reactivated upon NETDEV_UP eventAntonio Quartulli1-0/+12
At the moment there is no explicit reactivation of an hard-interface upon NETDEV_UP event. In case of B.A.T.M.A.N. IV the interface is reactivated as soon as the next OGM is scheduled for sending, but this mechanism does not work with B.A.T.M.A.N. V. The latter does not rely on the same scheduling mechanism as its predecessor and for this reason the hard-interface remains deactivated forever after being brought down once. This patch fixes the reactivation mechanism by adding a new routing API which explicitly allows each algorithm to perform any needed operation upon interface re-activation. Such API is optional and is implemented by B.A.T.M.A.N. V only and it just takes care of setting the iface status to ACTIVE Signed-off-by: Antonio Quartulli <a@unstable.cc> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2016-02-29batman-adv: B.A.T.M.A.N. V - implement bat_neigh_print APILinus Luessing1-0/+55
Lists all neighbours detected by the Echo Locating Protocol (ELP) and their throughput metric. Initially Developed by Linus during a 6 months trainee study period in Ascom (Switzerland) AG. Signed-off-by: Linus Luessing <linus.luessing@web.de> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
2016-02-29batman-adv: B.A.T.M.A.N. V - implement bat_orig_print APIAntonio Quartulli1-0/+105
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2016-02-29batman-adv: B.A.T.M.A.N. V - implement neighbor comparison API callsAntonio Quartulli1-0/+38
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2016-02-29batman-adv: ELP - compute the metric based on the estimated throughputAntonio Quartulli1-0/+3
In case of wireless interface retrieve the throughput by querying cfg80211. To perform this call a separate work must be scheduled because the function may sleep and this is not allowed within an RCU protected context (RCU in this case is used to iterate over all the neighbours). Use ethtool to retrieve information about an Ethernet link like HALF/FULL_DUPLEX and advertised bandwidth (e.g. 100/10Mbps). The metric is updated each time a new ELP packet is sent, this way it is possible to timely react to a metric variation which can imply (for example) a neighbour disconnection. Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
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