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2017-01-25make test: elegantly handle expected API failuresKlement Sekera1-6/+3
Allow writing simple code to expect API failure when needed: with self.vapi.expect_negative_api_retval(): do_api_call() # expected to return negative retval in response Change-Id: Id58d91d9ce38d20ad6ff7a43a6897e79ffbd23bf Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-01-17BFD: IPv6 supportKlement Sekera1-79/+142
Change-Id: Iaa9538c7cca500c04cf2704e5bf87480543cfcdf Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-01-17make test: add checkstyle targetKlement Sekera1-2/+0
Change-Id: I59d3c3bc77474c96e1d6fa51811c1b13fb9a6c5b Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-01-11BFD: fix bfd_udp_add APIKlement Sekera1-8/+25
Fix reporting of bs_index in the return message. Enhance test suite to cover this case. Change-Id: I37d35b850818bc1a05abe67ca919c22aeac978b6 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-01-03BFD: immediately honor reduced remote_min_rx intervalKlement Sekera1-24/+62
Change-Id: I7f09b45c926557d2ad0e2706b38fa56ff8194a3d Signed-off-by: Klement Sekera <ksekera@cisco.com>
2016-12-23make test: improve handling of packet capturesKlement Sekera1-4/+4
Perform accounting of expected packets based on created packet infos. Use this accounting info to automatically expect (and verify) the correct number of packets to be captured. Automatically retry the read of the capture file if scapy raises an exception while doing so to handle rare cases when capture file is read while only partially written during busy wait. Don't fail assert_nothing_captured if only junk packets arrived. Change-Id: I16ec2e9410ef510d313ec16b7e13c57d0b2a63f5 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2016-12-19make test: work around timing issue in bfd testKlement Sekera1-1/+1
Change-Id: I3f70091950b9288670969e54eadd35ac733905e4 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2016-12-16make test: improve robustness and performanceKlement Sekera1-1/+1
Introduce an API which asserts empty capture for interface. Throw exception in old API if the capture does not exist, thus making it clear if the test expects packets to arrive or not. Improve performance by not doing sleeps after starting the packet generator, rather lazily deleting captures when needed. Fix wrong usage of packet.show() in various tests. Change-Id: I456cb23316eef99b3f35f80344fe595c4db9a21c Signed-off-by: Klement Sekera <ksekera@cisco.com>
2016-12-09BFD: handle timing wheel prematurely firing eventsKlement Sekera1-3/+3
Improve handling of timeouts. Add a workaround for when timing wheel fires an event a tiny amount of time before it should actually be fired. Don't delete unneeded events at all from timing wheel, instead ignoring unexpected events. Enable the skipped BFD test, which passes now. Change-Id: I6ffd4fc0ba7a049ffe63bb0e5290641a7300dd6f Signed-off-by: Klement Sekera <ksekera@cisco.com>
2016-12-09BFD: fix timing in the main loopKlement Sekera1-34/+35
Properly wakeup the main process loop only when necessary to avoid missed events. Improve BFD unit test reliability and speed. Add timestamps to logs and replace Queue with more efficient deque. Change-Id: I01255a02057d3146917b43b669ccdc74f31ef0c8 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2016-12-08BFD: improve ip header handling, fix assertKlement Sekera1-0/+1
Instead of storing a pointer, store an offset within vlib_buffer marking the start of the ip header (similar to storing start of ethernet header). Handle negative timeout in the bfd process main loop. Change-Id: I05a1ff3ac41da5bdc3b2ac6f9e03b3241994688b Signed-off-by: Klement Sekera <ksekera@cisco.com>
2016-12-07BFD: basic asynchronous session up/downKlement Sekera1-0/+273
This is a work-in-progress basic BFD session handling. Only asynchronous mode is supported at the moment. Setting the session flags doesn't work. Change-Id: Idba27f721b5c35be5a66a6d202a63d23ff7ecf6f Signed-off-by: Klement Sekera <ksekera@cisco.com>