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2021-10-12ipsec: Performance improvement of ipsec4_output_node using flow cacheGovindarajan Mohandoss1-0/+5
Adding flow cache support to improve outbound IPv4/IPSec SPD lookup performance. Details about flow cache: Mechanism: 1. First packet of a flow will undergo linear search in SPD table. Once a policy match is found, a new entry will be added into the flow cache. From 2nd packet onwards, the policy lookup will happen in flow cache. 2. The flow cache is implemented using bihash without collision handling. This will avoid the logic to age out or recycle the old flows in flow cache. Whenever a collision occurs, old entry will be overwritten by the new entry. Worst case is when all the 256 packets in a batch result in collision and fall back to linear search. Average and best case will be O(1). 3. The size of flow cache is fixed and decided based on the number of flows to be supported. The default is set to 1 million flows. This can be made as a configurable option as a next step. 4. Whenever a SPD rule is added/deleted by the control plane, the flow cache entries will be completely deleted (reset) in the control plane. The assumption here is that SPD rule add/del is not a frequent operation from control plane. Flow cache reset is done, by putting the data plane in fall back mode, to bypass flow cache and do linear search till the SPD rule add/delete operation is complete. Once the rule is successfully added/deleted, the data plane will be allowed to make use of the flow cache. The flow cache will be reset only after flushing out the inflight packets from all the worker cores using vlib_worker_wait_one_loop(). Details about bihash usage: 1. A new bihash template (16_8) is added to support IPv4 5 tuple. BIHASH_KVP_PER_PAGE and BIHASH_KVP_AT_BUCKET_LEVEL are set to 1 in the new template. It means only one KVP is supported per bucket. 2. Collision handling is avoided by calling BV (clib_bihash_add_or_overwrite_stale) function. Through the stale callback function pointer, the KVP entry will be overwritten during collision. 3. Flow cache reset is done using BV (clib_bihash_foreach_key_value_pair) function. Through the callback function pointer, the KVP value is reset to ~0ULL. MRR performance numbers with 1 core, 1 ESP Tunnel, null-encrypt, 64B for different SPD policy matching indices: SPD Policy index : 1 10 100 1000 Throughput : MPPS/MPPS MPPS/MPPS MPPS/MPPS KPPS/MPPS (Baseline/Optimized) ARM Neoverse N1 : 5.2/4.84 4.55/4.84 2.11/4.84 329.5/4.84 ARM TX2 : 2.81/2.6 2.51/2.6 1.27/2.6 176.62/2.6 INTEL SKX : 4.93/4.48 4.29/4.46 2.05/4.48 336.79/4.47 Next Steps: Following can be made as a configurable option through startup conf at IPSec level: 1. Enable/Disable Flow cache. 2. Bihash configuration like number of buckets and memory size. 3. Dual/Quad loop unroll can be applied around bihash to further improve the performance. 4. The same flow cache logic can be applied for IPv6 as well as in IPSec inbound direction. A deeper and wider flow cache using bihash_40_8 can replace existing bihash_16_8, to make it common for both IPv4 and IPv6 in both outbound and inbound directions. Following changes are made based on the review comments: 1. ON/OFF flow cache through startup conf. Default: OFF 2. Flow cache stale entry detection using epoch counter. 3. Avoid host order endianness conversion during flow cache lookup. 4. Move IPSec startup conf to a common file. 5. Added SPD flow cache unit test case 6. Replaced bihash with vectors to implement flow cache. 7. ipsec_add_del_policy API is not mpsafe. Cleaned up inflight packets check in control plane. Type: improvement Signed-off-by: mgovind <govindarajan.Mohandoss@arm.com> Signed-off-by: Zachary Leaf <zachary.leaf@arm.com> Tested-by: Jieqiang Wang <jieqiang.wang@arm.com> Change-Id: I62b4d6625fbc6caf292427a5d2046aa5672b2006
2021-09-29ipsec: Record the number of packets lost from an SANeale Ranns1-0/+1
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
2021-03-15ipsec: allow inbound non-tunnel SA through CLIMohammed Hawari1-6/+0
Change-Id: Ia304488900bd9236ab4e7cc6f17ae029ee6f2c00 Type: fix Signed-off-by: Mohammed Hawari <mohammed@hawari.fr>
2021-03-05ipsec: Support async mode per-SANeale Ranns1-3/+4
Type: feature This feautre only applies to ESP not AH SAs. As well as the gobal switch for ayncs mode, allow individual SAs to be async. If global async is on, all SAs are async. If global async mode is off, then if then an SA can be individually set to async. This preserves the global switch behaviour. the stratergy in the esp encrypt.decrypt nodes is to separate the frame into, 1) sync buffers, 2) async buffers and 3) no-op buffers. Sync buffer will undergo a cyrpto/ath operation, no-op will not, they are dropped or handed-off. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Ifc15b10b870b19413ad030ce7f92ed56275d6791
2021-02-26ipsec: move the IPSec SA pool out of ipsec_mainNeale Ranns1-9/+10
Type: refactor this allows the ipsec_sa_get funtion to be moved from ipsec.h to ipsec_sa.h where it belongs. Also use ipsec_sa_get throughout the code base. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I2dce726c4f7052b5507dd8dcfead0ed5604357df
2021-02-10ipsec: Use the new tunnel API types to add flow label and TTL copyNeale Ranns1-21/+6
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 Smith1-6/+21
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 Ranns1-21/+6
support Type: feature Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I6d4a9b187daa725d4b2cbb66e11616802d44d2d3
2021-02-06ipsec: CLI improvement for udp port encapMohammed Hawari1-0/+5
Change-Id: I59f55db7209549ad43a1205470a2f5ea9ea8a1c7 Signed-off-by: Mohammed Hawari <mohammed@hawari.fr> Type: feature
2021-01-07ipsec: Deprecated the old IPsec Tunnel interfaceNeale Ranns1-195/+0
Type: fix it's been 2 releases since it was marked deprecated. Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I0eba7ed607826ed0d00e7d2d8f9b27d09e8e9a6e
2021-01-05ipsec: ipsec cli nexthop erroryedg1-1/+1
Type: fix Signed-off-by: yedonggang <yedg@wangsu.com> Change-Id: Icc3681b591e6deb93c3ff1fda5f9471fa3c96cc6
2020-12-14misc: move to new pool_foreach macrosDamjan Marion1-10/+10
Type: refactor Change-Id: Ie67dc579e88132ddb1ee4a34cb69f96920101772 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-11-06ipsec: add support for tx-table-id in cli + exampleBenoît Ganne1-2/+16
Type: improvement Change-Id: I840741dfe040718b682935cdbcb0ba958d45a591 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-11-02ipsec: Tunnel SA DSCP behaviourNeale Ranns1-5/+11
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
2020-10-21ipsec: Add to the SA info directly in the bihashNeale Ranns1-4/+4
Type: improvement this save the cache miss on the protect structure. Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I867d5e49df5edfd6b368f17a34747f32840080e4
2020-10-16ipsec: fix instance, and cli del for new ipsec interfaceEric Kinzie1-1/+3
- use user instance number in interface name Restore the behavior of previous versions where the IPsec tunnel interface name contained the value of the user-provided instance number. For example, a command similar to create ipsec tunnel local-ip . . . instance 5 would result in the creation of interface "ipsec5". - ipsec: delete tunnel protection when asked The "ipsec tunnel protect" command will parse a "del" argument but does not undo the tunnel protection, leaving the SAs hanging around with reference counts that were incremented by a previous invocation of the command. Allow the tunnel protection to be deleted and also update the help text to indicate that deletion is an option. - test: ipsec: add test for ipsec interface instance Also cleanup (unconfig) after TestIpsecItf4 NULL algo test. Type: fix Fixes: dd4ccf2623b5 ("ipsec: Dedicated IPSec interface type") Signed-off-by: Eric Kinzie <ekinzie@labn.net> Signed-off-by: Christian Hopps <chopps@labn.net> Change-Id: Idb59ceafa0633040344473c9942b6536e3d941ce
2020-10-05ipsec: Use bihash for tunnel lookupNeale Ranns1-22/+26
Type: improvement Change-Id: I0c82722dfce990345fe6eeecdb335678543367e0 Signed-off-by: Neale Ranns <nranns@cisco.com>
2020-09-04ipsec: cli: add missing flags for SA addChristian Hopps1-0/+12
Add missing cli options for setting IPsec SA flags, inbound, use-anti-replay, and use-esn. Type: fix Change-Id: Ia7a91b4b0a12be9e4dd0e684be3e04d8ccafb9d4 Signed-off-by: Christian Hopps <chopps@labn.net>
2020-07-29ipsec: fix cli uninitialized parametersBenoît Ganne1-15/+37
Type: fix Change-Id: Ia5c1f928f6752314b278127d2446e973f03a5da8 Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-05-13ipsec: Support 4o6 and 6o4 for SPD tunnel mode SAsNeale Ranns1-4/+23
Type: feature the es4-encrypt and esp6-encrypt nodes need to be siblings so they both have the same edges for the DPO on which the tunnel mode SA stacks. Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I2126589135a1df6c95ee14503dfde9ff406df60a
2020-05-05ipsec: User can choose the UDP source portNeale Ranns1-5/+8
Type: feature thus allowing NAT traversal, Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Ie8650ceeb5074f98c68d2d90f6adc2f18afeba08 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2020-04-30crypto: introduce async crypto infraFan Zhang1-0/+38
Type: feature Signed-off-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Filip Tehlar <ftehlar@cisco.com> Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com> Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com> Signed-off-by: Dariusz Kazimierski <dariuszx.kazimierski@intel.com> Signed-off-by: Piotr Kleski <piotrx.kleski@intel.com> Change-Id: I4c3fcccf55c36842b7b48aed260fef2802b5c54b
2020-03-21ikev2: add support for custom ipsec-over-udp portFilip Tehlar1-3/+4
Type: feature Change-Id: Ifee2b3dca85ea915067b9285e3636802bf0c19a8 Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
2020-03-17ipsec: initialize algs to none in 'create ipsec tunnel' cliDamjan Marion1-2/+2
Type: fix Change-Id: I901c9384710eee5847b3fbce060c78e115ba4169 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-02-21ipsec: IPSec protection for multi-point tunnel interfacesNeale Ranns1-3/+9
Type: feature Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Iaba2ab11bfaa1c8db4023434e3043ac39500f938
2020-01-27ipip: Multi-point interfaceNeale Ranns1-1/+1
Type: feature plus fixes for gre Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I0eca5f94b8b8ea0fcfb058162cafea4491708db6
2020-01-27tunnel: Common types for IP tunnelsNeale Ranns1-1/+2
Type: refactor Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I18dcdb7af3e327f6cacdbcb1e52b89f13d6ba6e2
2019-12-10ipsec: Init salt value in SA creation CLI (so it's not random)Neale Ranns1-0/+1
Type: fix Change-Id: Idf4d0b59a1eb2c739a67a4786470884050f81561 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-12-03ipip: Tunnel flags controlling copying data to/from payload/encapNeale Ranns1-2/+2
Type: feature Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I9467f11775936754406892b8e9e275f989ac9b30
2019-11-18ipsec: Coverity warningsNeale Ranns1-5/+2
Type: fix Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I6bb6c6be62f98ac9a059469c81a5f4476b96e96e
2019-11-08ipsec: remove dedicated IPSec tunnelsNeale Ranns1-65/+90
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>
2019-09-30ipsec: add insecure option for format of SAChristian E. Hopps1-1/+2
If specified, shows keys, otherwise redacts. This change sets this flag in the existing CLI code (thus maintaining the old behavior). The use case for not specifying the insecure flag (and thus redacting the keys from the show output) is for log messages. Type: feature Signed-off-by: Christian E. Hopps <chopps@chopps.org> Change-Id: I8c0ab6a9a8aba7c687a2559fa1a23fac9d0aa111
2019-08-27ipsec: Add 'detail' option to 'sh ipsec sa'Neale Ranns1-4/+8
Type: feature with detail option prints all details for all SAs Change-Id: Ic3c423c085dfc849cf9c3e18a6f624b82150d961 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-16ipsec: handle UDP keepalivesNeale Ranns1-0/+52
Type: feature Change-Id: I87cc1168466f267e8c4bbec318401982f4bdf03a Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-12ipsec: Reference count the SAsNeale Ranns1-5/+5
- this remove the need to iterate through all state when deleting an SA - and ensures that if the SA is deleted by the client is remains for use in any state until that state is also removed. Type: feature Change-Id: I438cb67588cb65c701e49a7a9518f88641925419 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-11ipsec: Revert "IPSEC: remove byte swap operations in DP during SPD classify"Neale Ranns1-4/+0
Type: fix Fixes: 231c4696872cb344f28648949603840136c0795d This reverts commit 231c4696872cb344f28648949603840136c0795d. Change-Id: I136344555983dd10a31dbc000ee40e2de2c91291 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-06-18ipsec: ipsec-tun protectNeale Ranns1-1/+124
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>
2019-06-14ipsec: Display user specified SPI ID not VPP's indexNeale Ranns1-1/+3
Type: fix Fixes: 8d7c502002 Change-Id: Ia6de250f20200c17937d9d7b2aab17ccd81d7823 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-06-07ipsec: remove the set_key APINeale Ranns1-131/+0
there's no use case to just change the key of an SA. instead the SA should be renegociated and the new SA applied to the existing SPD entry or tunnel. the set_key functions were untested. Type: refactor Change-Id: Ib096eebaafb20be7b5501ece5a24aea038373002 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-06-05IPSEC: some CLI fixesNeale Ranns1-4/+3
Change-Id: I45618347e37440263270baf07b2f82f653f754a5 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-05-15IPSEC: remove CLI check for unsupported IPv6-AH - it is supportedNeale Ranns1-22/+0
Change-Id: I72ec95d4a3009a55b0f1fa7e45f9c53f31ef5fc1 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-05-14IPSEC coverity fixesNeale Ranns1-1/+3
Change-Id: I753fbce091c0ba1004690be5ddeb04f463cf95a3 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-25IPSEC; dpdk backend for tunnel interface encryptionNeale Ranns1-8/+7
Change-Id: Ide2a9df18db371c8428855d7f12f246006d7c04c Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-23Fix a ipsec command line typoSimon Zhang1-1/+1
Change-Id: Ic75df36e06a77730ff8764f96d3cf53c4e59923b Signed-off-by: Simon Zhang <yuwei1.zhang@intel.com>
2019-04-17IPSEC: Pass the algorithm salt (used in GCM) over the APINeale Ranns1-2/+5
Change-Id: Ia8cea13f7b937294e6a080a55fb2ceff30063acf Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-16IPSEC: support GCM in ESPNeale Ranns1-1/+3
Change-Id: Id2ddb77b4ec3dd543d6e638bc882923f2bac011d Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-03IPSEC: show CLI improvementsNeale Ranns1-31/+146
Change-Id: I48a4b0a16f71cbab04dd0955d3ec4001074b57ed Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-03-21ipsec: add ipv6 support for ipsec tunnel interfaceKingwel Xie1-3/+2
Change-Id: I6a76907dc7bed2a81282b63669bea2219d6903c9 Signed-off-by: Kingwel Xie <kingwel.xie@ericsson.com> Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
2019-03-19IPSEC: remove byte swap operations in DP during SPD classifyNeale Ranns1-0/+4
Change-Id: I4bfde738f9585b045cb5ba62cf51b141d639b1b2 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-03-19IPSEC: tidy the policy typesNeale Ranns1-2/+17
Change-Id: I5e981f12ff44243623cfd18d5e0ae06a7dfd1eb8 Signed-off-by: Neale Ranns <nranns@cisco.com>