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2022-05-10tests: replace pycodestyle with blackKlement Sekera1-589/+920
Drop pycodestyle for code style checking in favor of black. Black is much faster, stable PEP8 compliant code style checker offering also automatic formatting. It aims to be very stable and produce smallest diffs. It's used by many small and big projects. Running checkstyle with black takes a few seconds with a terse output. Thus, test-checkstyle-diff is no longer necessary. Expand scope of checkstyle to all python files in the repo, replacing test-checkstyle with checkstyle-python. Also, fixstyle-python is now available for automatic style formatting. Note: python virtualenv has been consolidated in test/Makefile, test/requirements*.txt which will eventually be moved to a central location. This is required to simply the automated generation of docker executor images in the CI. Type: improvement Change-Id: I022a326603485f58585e879ac0f697fceefbc9c8 Signed-off-by: Klement Sekera <klement.sekera@gmail.com> Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
2022-03-04ip: rate-limit the sending of ICMP error messagesNeale Ranns1-4/+2
Type: improvement For error conditions, such as TTL expired, dest unreach, etc, Rate limit the sending of ICMP error messages. The rate limiting is done based on src,dst IP address of the received packet. the rate limit has been chosen, somewhat arbitrarily, to be 1e-3. This is the same limit as the ARP throttling. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I4a0b791cde8c941a9bf37de6aa5da56779d3cef4
2022-01-31ip: reassembly - add a way to disable for forusKlement Sekera1-32/+77
Add API to disable full reassembly of "forus" packets. Mark packets passing through ip[4|6]-local nodes with a new buffer flag and check for that flag in reassembly. Enable IP6 "forus" full reassembly by default to be consistent with existing IP4 setting. Type: improvement Change-Id: I7067792fcd4304182654237968e4c4d9293c6143 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-12-14ip: reassembly: drop zero length fragmentsKlement Sekera1-0/+18
Zero length fragments are invalid and should be dropped. This patch adds that. Type: improvement Change-Id: Ic6466c39ca8bf376efe06bb3b7f5d7f1ae812866 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-12-10ip: reassembly: handle atomic fragments correctlyKlement Sekera1-1/+80
If a fragment arrives with fragment offset = 0 and M = 0, it means that this is actually a complete packet and per RFC 8200, it should be treated independently from other fragments. This patch does that. Fragmentation header is stripped and fragment is forwarded irregardles of other existing reassemblies in case of full reassembly and treated the same way as regular packet in shallow virtual reassembly. Type: improvement Change-Id: If3322d5e3160cd755b8465a642702a9166d46cc2 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-12-03ip: extension header parsing fails for fragment headerOle Troan1-9/+33
Refactor and improve boundary checking on IPv6 extension header handling. Limit parsing of IPv6 extension headers to a maximum of 4 headers and a depth of 256 bytes. Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: Ide40aaa2b482ceef7e92f02fa0caeadb3b8f7556 Signed-off-by: Ole Troan <ot@cisco.com>
2021-11-22vlib: add virtual time supportBenoît Ganne1-12/+12
Type: feature Change-Id: Iabd76558e9c72ed8286cfeeb1fbaa4fde4832a90 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2021-03-20tests: add support for worker awarenessKlement Sekera1-21/+18
VppTestCase now has vpp_worker_count property set to number of workers. This can be overriden by child classes. Also overriden by VPP_WORKER_CONFIG variable for legacy reasons. Type: improvement Change-Id: Ic328bacb9003ddf9e92815767653bd362aa7f086 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2020-12-16ip: fix possible missing trace indexesKlement Sekera1-0/+101
Add safeguards when tracing packets to avoid cases where clear trace was issue while buffers were held in reassembly. Type: fix Change-Id: I1bdd1e629e8bc08ce63913fd3c4b2327e47dec04 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2020-12-03tests: remove py2/py3 six compatability libraryPaul Vinciguerra1-8/+7
Type: test Change-Id: Idb6b8169845e0239e639429ccfd02a683212b7e6 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2020-07-28ip: svr: improve performance for non-fragmentsKlement Sekera1-0/+66
Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: Ia77ce41a8f1a032c5e027c4bb47347752cfda0a9
2019-11-05misc: Fix python scripts shebang lineRenato Botelho do Couto1-1/+1
Type: fix Since CentOS 8, RPM build script doesn't accept '#!/usr/bin/env python' as a valid shebang line. It requires scripts to explicitly chose between python2 or python3. Change all to use python3 as suggested by Paul Vinciguerra. Depends-On: https://gerrit.fd.io/r/23170 Signed-off-by: Renato Botelho do Couto <renato@netgate.com> Change-Id: Ie72af9f60fd0609e07f05b70f8d96e738b2754d1
2019-10-21ip: reassembly tests python3 supportOle Troan1-16/+13
Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: I990d8d521c128e8d4f482e30b3a49cbc11b632d1
2019-10-11tests: extra logging in reassembly testsKlement Sekera1-0/+10
Type: test Change-Id: Ia09c3149490e47e49e59544ab1680a8160e60ac8 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-09-26ip: add shallow virtual reassembly functionalityKlement Sekera1-1/+342
Type: feature Change-Id: Ibc8334e26c7e6f6120696c3e313b6e11d73dab99 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-09-25ip: respect buffer boundary when searching for ipv6 headersKlement Sekera1-2/+19
Type: fix Change-Id: I5a5461652f8115fa1270e20f748178fb5f5450f2 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-09-25ip: refactor reassemblyKlement Sekera1-14/+16
this is a preparation step for introducing other reassembly types Type: refactor Change-Id: I197e299dbd729b00eead31667913b8ceff915d63 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-08-20ip: reassembly: send packet out on correct workerKlement Sekera1-3/+351
Note which worker received fragment with offset zero and use this worker to send out the reassembled packet. Type: fix Change-Id: I1d3cee16788db3b230682525239c0100d51dc380 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-08-20tests: Revert "Tests: Example duplicate code refactoring."Klement Sekera1-243/+277
This reverts commit 6955595a577e1b7d316b5b69267bf1d1d951a4ab. The result is that test filtering for reassembly tests works again. Type: fix Change-Id: I4acb094b5b4aa264745986afa0bb0528789807b3 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-06-18fib: fib api updatesNeale Ranns1-5/+4
Enhance the route add/del APIs to take a set of paths rather than just one. Most unicast routing protocols calcualte all the available paths in one run of the algorithm so updating all the paths at once is beneficial for the client. two knobs control the behaviour: is_multipath - if set the the set of paths passed will be added to those that already exist, otherwise the set will replace them. is_add - add or remove the set is_add=0, is_multipath=1 and an empty set, results in deleting the route. It is also considerably faster to add multiple paths at once, than one at a time: vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.11 100000 routes in .572240 secs, 174751.80 routes/sec vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.12 100000 routes in .528383 secs, 189256.54 routes/sec vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.13 100000 routes in .757131 secs, 132077.52 routes/sec vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.14 100000 routes in .878317 secs, 113854.12 routes/sec vat# ip_route_add_del 1.1.1.1/32 count 100000 multipath via 10.10.10.11 via 10.10.10.12 via 10.10.10.13 via 10.10.10.14 100000 routes in .900212 secs, 111084.93 routes/sec Change-Id: I416b93f7684745099c1adb0b33edac58c9339c1a Signed-off-by: Neale Ranns <neale.ranns@cisco.com> Signed-off-by: Ole Troan <ot@cisco.com> Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-05-22make test: fix bug due to concurrent commitsKlement Sekera1-4/+4
Change-Id: I912745950fe6e3f1688ef66b430ef86cdddd04cd Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-05-20reassembly: prevent long chain attackKlement Sekera1-0/+72
limit max # of fragments to 3 per packet by default add API option to configure the limit at runtime Change-Id: Ie4b9507bf5c6095b9a5925972b37fe0032f4f9e8 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-05-08VPP-1508: Fix zip() under python3.Paul Vinciguerra1-4/+4
Under py3, zip() returns an iterator. Fix so no longer needed in a list contex. Change-Id: I64b4560d990686cc87fd26d703030f9fb2494f12 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-04-18GRE: API updateNeale Ranns1-2/+2
Change-Id: I5010cd34123c6498230dedac6ba8dd774a1085f9 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-11Tests: Refactor tearDown show command logging, add lifecycle markers.Paul Vinciguerra1-1/+9
This change adds a consistent interface for adding test-specific show commands to log.txt. It also adds log markers for the execution of setUp[Class], tearDown[Class] in the logs. Change-Id: I7d42e396e594a59e866a7d55dac0af25548e657a Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-04-10Tests Cleanup: Fix missing calls to setUpClass/tearDownClass.Paul Vinciguerra1-0/+16
Continuation/Part 2 of https://gerrit.fd.io/r/#/c/17092/ Change-Id: Id0122d84eaf2c05d29e5be63a594d5e528ee7c9a Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-03-11VPP-1508: Use scapy.compat to manage packet level library differences.Paul Vinciguerra1-4/+8
Change-Id: Icdf6abc9e53d33b26fd1d531c7dda6be0bb9cb55 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-03-07Tests: Refactor payload_to_info()Paul Vinciguerra1-3/+3
All callers of payload_to_info were required to wrap payload with str(). Refactor to call scapy's payload.load for raw payloads or specify the specific fieldname. Change-Id: I1c80599d4df8dc129dbb8274733afaad406d5bcf Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-03-06Tests: Example duplicate code refactoring.Paul Vinciguerra1-273/+243
Refactor of duplicate methods in test/test_reassembly.py. Change-Id: I46f880da6a0ced2acae1fa33c6892d0148b26139 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-02-19reassembly: fix buffer usage counterKlement Sekera1-0/+5
Change-Id: I713904f8eb2f724cb08dba494c160c14cc8b24a1 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-01-10Enable random reassembly test for ARMjuraj.linkes1-4/+1
The underlying failure has been fixed and now the test can be re-enabled. Change-Id: I75251f6150ef1771dc23ea079799229690cf87d9 Signed-off-by: juraj.linkes <juraj.linkes@pantheon.tech>
2018-12-20Tests: Cleanup @skip decorator.Paul Vinciguerra1-1/+1
The runnning environment is static as of module load time, so only evalute the conditions once at module load time. Track-by: VPP-1518 Change-Id: I73b0d17ae1ff90789e70307f168d43921829aec8 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2018-12-20reassembly: replace asserts with error countersKlement Sekera1-2/+3
Change-Id: Iaa39aea990bc04147f6a049215e990a567d30106 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-12-16VPP-1523: harden reassemblyKlement Sekera1-2/+42
Change-Id: I00d7b38bd99e81e3921ce08cce50d613f11de36e Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-12-13reassembly: fix internal buffer count accountingKlement Sekera1-0/+31
Change-Id: I6af2c8552aeafe0abc8b8c3e5af1a05640e95919 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-12-13VPP-1522: harden reassembly codeKlement Sekera1-3/+28
Change-Id: Ib5a20bff7d8a340ecf50bcd4a023d6bf36382ba3 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-12-06Skip failing ARM testcases for CIjuraj.linkes1-1/+4
There are a few tests that fail on ARM and thus we can't enable testing in CI. Skip the failing tests until they're fixed so that we catch new failures in CI (when we enable testing for the remaining tests). Change-Id: Ie896ef5c449ef965029633e38d317a8d5ac26352 Signed-off-by: juraj.linkes <juraj.linkes@pantheon.tech>
2018-11-27VPP-1508 python3 tests: use six.iteritemsPaul Vinciguerra1-5/+7
This replaces dictionary.iteritems() on Python 2 and dictionary.items() on Python 3. Change-Id: I58a3ded7d284c59e28d484b0c285aac435bfc229 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2018-10-04Support reassembly for fragments coming to ip4-local nodeJuraj Sloboda1-1/+118
Change-Id: I3aa4708c1c3cdda344f282d56b617677080eaaa1 Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
2018-09-11GBP Endpoint UpdatesNeale Ranns1-1/+2
- common types on the API - endpoints keyed in various ways for DP lookup - conparison functions for VPP IP address types Change-Id: If7ec0bbc5cea71fd0983fe78987d147ec1bd7ec8 Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
2018-04-03reassembly: bug fixesKlement Sekera1-2/+1
This change fixes a bug which would corrupt features infra by making feature infra resistant to double-removal. It also fixes 'out of memory' issue by properly initializing the bihash tables. Change-Id: I78ac03139234a9a0e0b48e7bdfac1c38a0069e82 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-03-21reassembly: feature/concurrencyKlement Sekera1-0/+972
This change makes ip reassembly an interface feature, while adding concurrency support. Due to this, punt is no longer needed to test reassembly. Change-Id: I467669514ec33283ce935be0f1dd08f07684f0c7 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-03-07test: disable reassembly tests and system modification scriptDamjan Marion1-966/+0
One of basic requirements from day one for maek test is that it should run unpriviledged, so modifying system paremeters is unacceptable. Disabling script and reassembly tests as they need to be done in different way. Change-Id: I063c73eb82f2ebd7499e8adb1574a9fd2475fb5b Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-02-01IPv4/6 reassemblyKlement Sekera1-0/+966
Change-Id: Ic5dcadd13c88b8a5e7896dab82404509c081614a Signed-off-by: Klement Sekera <ksekera@cisco.com>