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* batman-adv: Drop license boilerplateSven Eckelmann2019-03-251-12/+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>
* batman-adv: Update copyright years for 2019Sven Eckelmann2019-01-041-1/+1
| | | | | Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
* batman-adv: Improve includes for trace functionalitySven Eckelmann2018-11-121-2/+0
| | | | | | | | | | The batadv_dbg trace event uses different functionality and datastructures which are not directly associated with the trace infrastructure. It should not be expected that the trace headers indirectly provide them and instead include the required headers directly. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
* batman-adv: Provide debug messages as trace eventsSven Eckelmann2018-09-151-0/+22
A private debug logging infrastructure is currently provided via $debug_fs/batman_adv/*/log when CONFIG_BATMAN_ADV_DEBUG is enabled. This is not well integrated in the rest of the tracing infrastructure of the kernel. Other components (like mac80211 or ath10k) allow to gather the debug messages using generic trace events which are better integrated. This makes it possible to interact with them using the existing userspace tools. The tracepoint batadv:batadv_dbg will now be available when CONFIG_BATMAN_ADV_DEBUG and CONFIG_BATMAN_ADV_TRACING is activated. The log level mask is still used for filtering as usual. A full system trace for offline parsing can be created (and read) using: $ batctl ll all $ trace-cmd record -e batadv:batadv_dbg $ trace-cmd report The same can also be done without recording to a file $ batctl ll all $ trace-cmd stream -e batadv:batadv_dbg The trace infrastructure is especially helpful when tracing processes: $ batctl ll all $ ./tools/perf/perf trace --event "batadv:*" batctl p 10.204.32.1 0.000 batadv:batadv_dbg:batman_adv bat0 Parsing outgoing ARP REQUEST 0.045 batadv:batadv_dbg:batman_adv bat0 ARP MSG = [src: a2:64:14:53:f8:22-10.204.32.185 dst: 00:00:00:00:00:00-10.204.32.1] 0.067 batadv:batadv_dbg:batman_adv bat0 Entry updated: 10.204.32.185 a2:64:14:53:f8:22 (vid: -1) 0.099 batadv:batadv_dbg:batman_adv bat0 batadv_dat_select_candidates(): IP=10.204.32.1 hash(IP)=48902 0.757 batadv:batadv_dbg:batman_adv bat0 dat_select_candidates() 0: selected fe:2c:91:68:29:2b addr=48977 dist=65460 1.178 batadv:batadv_dbg:batman_adv bat0 dat_select_candidates() 1: selected fe:81:ab:c5:e3:03 addr=49181 dist=65256 1.809 batadv:batadv_dbg:batman_adv bat0 dat_select_candidates() 2: selected 66:25:a7:48:37:fb addr=49328 dist=65109 1.828 batadv:batadv_dbg:batman_adv bat0 DHT_SEND for 10.204.32.1 Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>