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2021-09-29ipsec: Record the number of packets lost from an SANeale Ranns1-0/+87
Type: feature Gaps in the sequence numbers received on an SA indicate packets that were lost. Gaps are identified using the anti-replay window that records the sequences seen. Publish the number of lost packets in the stats segment at /net/ipsec/sa/lost Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I8af1c09b7b25a705e18bf82e1623b3ce19e5a74d
2021-08-13tests docs: upgrade python packagesDave Wallace1-11/+11
- Upgrade python package requirements for test & docs - Clean up docs generation warnings - Consolidate python requirements for docs in test requirements specs. - Upgrade pip Type: make Change-Id: I74a3924b43ed93d15b32ec9f6fc41ed1ba95b69b Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
2021-06-29ipsec: Fix setting the hi-sequence number for decryptNeale Ranns1-9/+204
Type: fix two problems; 1 - just because anti-reply is not enabled doesn't mean the high sequence number should not be used. - fix, there needs to be some means to detect a wrapped packet, so we use a window size of 2^30. 2 - The SA object was used as a scratch pad for the high-sequence number used during decryption. That means that once the batch has been processed the high-sequence number used is lost. This means it is not possible to distinguish this case: if (seq < IPSEC_SA_ANTI_REPLAY_WINDOW_LOWER_BOUND (tl)) { ... if (post_decrypt) { if (hi_seq_used == sa->seq_hi) /* the high sequence number used to succesfully decrypt this * packet is the same as the last-sequnence number of the SA. * that means this packet did not cause a wrap. * this packet is thus out of window and should be dropped */ return 1; else /* The packet decrypted with a different high sequence number * to the SA, that means it is the wrap packet and should be * accepted */ return 0; } - fix: don't use the SA as a scratch pad, use the 'packet_data' - the same place that is used as the scratch pad for the low sequence number. other consequences: - An SA doesn't have seq and last_seq, it has only seq; the sequence numnber of the last packet tx'd or rx'd. - there's 64bits of space available on the SA's first cache line. move the AES CTR mode IV there. - test the ESN/AR combinations to catch the bugs this fixes. This doubles the amount of tests, but without AR on they only run for 2 seconds. In the AR tests, the time taken to wait for packets that won't arrive is dropped from 1 to 0.2 seconds thus reducing the runtime of these tests from 10-15 to about 5 sceonds. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Iaac78905289a272dc01930d70decd8109cf5e7a5
2021-03-25stats: python vpp_stats rewrite to access stat segment directlyOle Troan1-2/+3
This module implement Python access to the VPP statistics segment. It accesses the data structures directly in shared memory. VPP uses optimistic locking, so data structures may change underneath us while we are reading. Data is copied out and it's important to spend as little time as possible "holding the lock". Counters are stored in VPP as a two dimensional array. Index by thread and index (typically sw_if_index). Simple counters count only packets, Combined counters count packets and octets. Counters can be accessed in either dimension. stat['/if/rx'] - returns 2D lists stat['/if/rx'][0] - returns counters for all interfaces for thread 0 stat['/if/rx'][0][1] - returns counter for interface 1 on thread 0 stat['/if/rx'][0][1]['packets'] - returns the packet counter for interface 1 on thread 0 stat['/if/rx'][:, 1] - returns the counters for interface 1 on all threads stat['/if/rx'][:, 1].packets() - returns the packet counters for interface 1 on all threads stat['/if/rx'][:, 1].sum_packets() - returns the sum of packet counters for interface 1 on all threads stat['/if/rx-miss'][:, 1].sum() - returns the sum of packet counters for interface 1 on all threads for simple counters Type: refactor Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: I1fe7f7c7d11378d06be8276db5e1900ecdb8f515 Signed-off-by: Ole Troan <ot@cisco.com>
2021-03-20tests: add support for worker awarenessKlement Sekera1-2/+2
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>
2021-02-25tests: Add tests for IPSec async mode using the crypto SW schedulerNeale Ranns1-27/+46
Type: test Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Iabc8f2b09ee10a82aacebd36acfe8648cf69b7d7
2021-02-25ipsec: enable input features on tunnelsBrian Russell1-0/+6
Make the ipsec[46]-tun-input nodes siblings of device-input so that input features can be enabled on them. Register ipsec-tun for feature updates. When a feature is enabled on the device-input arc and the ifindex is an IPSec tunnel, change the end node of the arc for that ifindex to be the appropriate ESP decrypt node. Set a flag on the tunnel to indicate that the feature arc should be started for packets input on the tunnel. Test input policing on ESP IPSec tunnels. Type: improvement Signed-off-by: Brian Russell <brian@graphiant.com> Change-Id: I3b9f047e5e737f3ea4c58fc82cd3c15700b6f9f7
2021-02-10ipsec: Use the new tunnel API types to add flow label and TTL copyNeale Ranns1-7/+25
support Type: feature attmpet 2. this includes changes in ah_encrypt that don't use uninitialised memory when doing tunnel mode fixups. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Ie3cb776f5c415c93b8a5ee22f22586fd0181110d
2021-02-09Revert "ipsec: Use the new tunnel API types to add flow label and TTL copy"Matthew Smith1-25/+7
This reverts commit c7eaa711f3e25580687df0618e9ca80d3dc85e5f. Reason for revert: The jenkins job named 'vpp-merge-master-ubuntu1804-x86_64' had 2 IPv6 AH tests fail after the change was merged. Those 2 tests also failed the next time that job ran after an unrelated change was merged. Change-Id: I0e2c3ee895114029066c82624e79807af575b6c0 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2021-02-08ipsec: Use the new tunnel API types to add flow label and TTL copyNeale Ranns1-7/+25
support Type: feature Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I6d4a9b187daa725d4b2cbb66e11616802d44d2d3
2021-02-05ipsec: add support for AES CTRBenoît Ganne1-1/+1
Type: feature Change-Id: I9f7742cb12ce30592b0b022c314b71c81fa7223a Signed-off-by: Benoît Ganne <bganne@cisco.com>
2021-01-07ipsec: Deprecated the old IPsec Tunnel interfaceNeale Ranns1-5/+5
Type: fix it's been 2 releases since it was marked deprecated. Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I0eba7ed607826ed0d00e7d2d8f9b27d09e8e9a6e
2020-12-07tests: py2 cleanup - remove subclassing of objectPaul Vinciguerra1-2/+2
Type: refactor Change-Id: I9096e3b473110350e1e8e5936e3c4c164f8969a7 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2020-11-02ipsec: Tunnel SA DSCP behaviourNeale Ranns1-2/+10
Type: feature - use tunnel_encap_decap_flags to control the copying of DSCP/ECN/etc during IPSEC tunnel mode encap. - use DSCP value to have fixed encap value. Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: If4f51fd4c1dcbb0422aac9bd078e5c14af5bf11f
2020-09-07ipsec: fix padding/alignment for native IPsec encryptionChristian Hopps1-1/+13
Not all ESP crypto algorithms require padding/alignment to be the same as AES block/IV size. CCM, CTR and GCM all have no padding/alignment requirements, and the RFCs indicate that no padding (beyond ESPs 4 octet alignment requirement) should be used unless TFC (traffic flow confidentiality) has been requested. CTR: https://tools.ietf.org/html/rfc3686#section-3.2 GCM: https://tools.ietf.org/html/rfc4106#section-3.2 CCM: https://tools.ietf.org/html/rfc4309#section-3.2 - VPP is incorrectly using the IV/AES block size to pad CTR and GCM. These modes do not require padding (beyond ESPs 4 octet requirement), as a result packets will have unnecessary padding, which will waste bandwidth at least and possibly fail certain network configurations that have finely tuned MTU configurations at worst. Fix this as well as changing the field names from ".*block_size" to ".*block_align" to better represent their actual (and only) use. Rename "block_sz" in esp_encrypt to "esp_align" and set it correctly as well. test: ipsec: Add unit-test to test for RFC correct padding/alignment test: patch scapy to not incorrectly pad ccm, ctr, gcm modes as well - Scapy is also incorrectly using the AES block size of 16 to pad CCM, CTR, and GCM cipher modes. A bug report has been opened with the and acknowledged with the upstream scapy project as well: https://github.com/secdev/scapy/issues/2322 Ticket: VPP-1928 Type: fix Signed-off-by: Christian Hopps <chopps@labn.net> Change-Id: Iaa4d6a325a2e99fdcb2c375a3395bcfe7947770e
2020-07-21ipsec: Dedicated IPSec interface typeNeale Ranns1-0/+2
Type: feature Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Ie8bd50df163aea2798e9f9d35a13dcadc4a4a4b2
2020-04-06misc: fix python sonarcloud BLOCKER level issuesPaul Vinciguerra1-1/+1
Fix of the top 11 python issues flagged as BLOCKER. Ticket: VPP-1856 Type: fix Change-Id: Icf4691e62f4a69d6ee196b6d6e2ab52d961b5c76 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2020-02-21ipsec: IPSec protection for multi-point tunnel interfacesNeale Ranns1-21/+44
Type: feature Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Iaba2ab11bfaa1c8db4023434e3043ac39500f938
2020-02-11ipsec: add support for chained buffersFilip Tehlar1-47/+11
Type: feature Change-Id: Ie072a7c2bbb1e4a77f7001754f01897efd30fc53 Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
2020-01-16tests: fix typo in test doc stringPaul Vinciguerra1-1/+1
Type: test Change-Id: I97e02ebc5989eee794511c1ed6049e300be7d64e Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2020-01-04ipsec: AH copy destination and source address from templateNeale Ranns1-4/+14
Type: fix Change-Id: I63d4df68eed6589763b5ce62bcd7f3fd867c60e1 Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-01-04ipsec: Targeted unit testingNeale Ranns1-3/+161
Type: fix 1 - big packets; chained buffers and those without enoguh space to add ESP header 2 - IPv6 extension headers in packets that are encrypted/decrypted 3 - Interface protection with SAs that have null algorithms Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Ie330861fb06a9b248d9dcd5c730e21326ac8e973
2019-12-23ipsec: Test and fix IPSec worker hand-offNeale Ranns1-9/+70
Type: fix Change-Id: I5cb9a3845ddbc5f4de4eb4e9c481f606fe5cec9a Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-12-14tests: changes for scapy 2.4.3 migrationsnaramre1-12/+13
Type: fix Change-Id: I7e041b666dabd90df23a920a1f1d99db4c10ddfe Signed-off-by: snaramre <snaramre@cisco.com>
2019-11-08ipsec: remove dedicated IPSec tunnelsNeale Ranns1-13/+4
APIs for dedicated IPSec tunnels will remain in this release and are used to programme the IPIP tunnel protect. APIs will be removed in a future release. see: https://wiki.fd.io/view/VPP/IPSec Type: feature Change-Id: I0f01f597946fdd15dfa5cae3643104d5a9c83089 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-10-21ipsec: tests support python3Ole Troan1-4/+4
Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: Id13da9371c71c10c12a0120ec89ba21c1ca47524
2019-10-18ipsec: make tests support python3Ole Troan1-4/+4
Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: I3255702e7c562c8d04a91a095e245756c6443a9e
2019-08-27ipsec: Fix NULL encryption algorithmNeale Ranns1-1/+1
Type: fix Ticket: VPP-1756 the block-size was set to 0 resulting in incorrect placement of the ESP footer. add tests for NULL encrypt + integ. Change-Id: I8ab3afda8e68f9ff649540cba3f2cac68f12bbba Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-08-01ipsec: Redo the anit-replay check post decryptNeale Ranns1-0/+15
Type: fix Change-Id: I1fa8c5326d6f22cfb8dd40e97d8a22d11a716922 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-31ip: Ensure reassembly runs before IPSec decrypt.Neale Ranns1-1/+71
Type: fix Change-Id: I01eeedf8d5015b07b9422c65afe78bfe8177c22c Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-24ipsec: GCM, Anti-replay and ESN fixessNeale Ranns1-55/+173
Type: fix Several Fixes: 1 - Anti-replay did not work with GCM becuase it overwrote the sequence number in the ESP header. To fix i added the seq num to the per-packet data so it is preserved 2 - The high sequence number was not byte swapped during ESP encrypt. 3 - openssl engine was the only one to return FAIL_DECRYPT for bad GCM the others return BAD_HMAC. removed the former 4 - improved tracing to show the low and high seq numbers 5 - documented the anti-replay window checks 6 - fixed scapy patch for ESN support for GCM 7 - tests for anti-reply (w/ and w/o ESN) for each crypto algo Change-Id: Id65d96b6d1d4dd821b2ab557e87468fff6d70e5b Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-16ipsec: handle UDP keepalivesNeale Ranns1-0/+19
Type: feature Change-Id: I87cc1168466f267e8c4bbec318401982f4bdf03a Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-06-18ipsec: ipsec-tun protectNeale Ranns1-36/+62
please consult the new tunnel proposal at: https://wiki.fd.io/view/VPP/IPSec Type: feature Change-Id: I52857fc92ae068b85f59be08bdbea1bd5932e291 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-05-29make test: fix packet counter assertKlement Sekera1-7/+9
Change-Id: Ic6e6ac0629bbf07f7dad1803a85aabfdccbc2035 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-05-22stats: support multiple works for error countersOle Troan1-6/+6
The current code only allowed access to the main thread error counters. That is not so useful for a multi worker instance. No return a vector indexed by thread of counter_t values. Type: fix Change-Id: Ie322c8889c0c8175e1116e71de04a2cf453b9ed7 Signed-off-by: Ole Troan <ot@cisco.com>
2019-05-17Tests: Raise exception if API cli_inband command fails.Paul Vinciguerra1-6/+6
* Configure tests to raise exception if cli_inband fails. * Fix failing tests. * Add filename detail to pcap.stat clib_error_return for debugging. Note: this change identifies spurious issues with packet-generator such as: CliFailedCommandError: packet-generator capture: pcap file '/tmp/vpp-unittest-Test6RD-v09RPA/pg0_out.pcap' does not exist. These issues resolve themselves on remaining test passes. Change-Id: Iecbd09daee954d892306d11baff3864a43c5b603 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-04-25ipsec: drop runts in esp-decryptDamjan Marion1-2/+22
Change-Id: Id7fcaf8590f9f2dcccdebea0ad31c7ecd1cbc8af Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-04-19IPSEC: IPv6 ESP transport mode incorrect packet length and checksum (VPP-1654)Neale Ranns1-0/+4
Change-Id: Ia3474e5bfea5764eae9b2987bf78296535df6778 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-19IPSEC: ESP IPv6 transport mode payload length incorrect (VPP-1653)Neale Ranns1-0/+4
Change-Id: I8977100d7a22b50260858bd1ea9db419b53284ff Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-17IPSEC: Pass the algorithm salt (used in GCM) over the APINeale Ranns1-6/+17
Change-Id: Ia8cea13f7b937294e6a080a55fb2ceff30063acf Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-16IPSEC: support GCM in ESPNeale Ranns1-4/+6
Change-Id: Id2ddb77b4ec3dd543d6e638bc882923f2bac011d Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-11Tests: Refactor tearDown show command logging, add lifecycle markers.Paul Vinciguerra1-2/+3
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>
2019-04-10make test: fix redundant setUp() in template_ipsec.pyDave Wallace1-3/+0
Change-Id: I81b3888816b064bd6bf0f38f5380dae93d7bb349 Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
2019-04-10IPSEC: for each engine and algorithm testsNeale Ranns1-33/+64
refactor the IPSEC tests a bit so we can parameterise the setup. Change-Id: I777e5eb8f29ca1dce3dd273ebd05dae5846790af Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-10Tests Cleanup: Fix missing calls to setUpClass/tearDownClass.Paul Vinciguerra1-0/+11
Continuation/Part 2 of https://gerrit.fd.io/r/#/c/17092/ Change-Id: Id0122d84eaf2c05d29e5be63a594d5e528ee7c9a Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-04-08IPSEC TEST: various hash alogrithmsNeale Ranns1-2/+2
Change-Id: I925aa5bf9472e81f98072d63df499b19e6ddf43d Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-02IPSEC-GRE; testsNeale Ranns1-24/+31
failing test disabled on ARM Change-Id: I6b7535cd8f51fdaf9786ba77f9f61a7d8d049bbd Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-03-29IPSEC: tunnel fragmentationNeale Ranns1-15/+25
Change-Id: I63741a22bc82f5f861e1c0f26a93b5569cc52061 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-03-28ipsec: USE_EXTENDED_SEQ_NUM -> USE_ESNDamjan Marion1-2/+2
Change-Id: Ib828ea5106f3ae280e4ce233f2462dee363580b7 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-03-28IPSEC: 4o6 and 6o4 for tunnel interfacesNeale Ranns1-45/+111
Change-Id: I4d3ba18ab5205317219989de55b6e50d3b1d8a79 Signed-off-by: Neale Ranns <nranns@cisco.com>