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2021-03-31nat: NAT66 plugin enable&disable calls updateFilip Varga6-93/+258
Type: improvement Adding support for enable&disable calls (dynamic plugin configuration). API (nat66_plugin_enable_disable) and CLI (nat66 plugin enable/nat66 plugin disable) with support for outside_vrf id configuration. Change-Id: I5637ff1621d6662adc3b7c6f7f8176d84a4b492b Signed-off-by: Filip Varga <fivarga@cisco.com>
2021-03-30nat: fix HA multi-worker issuesKlement Sekera6-154/+176
Use correct vlib_main() in various code parts. Fix tests. Type: fix Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: Ia379f3b686599532dedaafad2278c4097a3f03f3
2021-03-26vlib: split vlib_main_t into global and per-threadDamjan Marion1-11/+0
Type: refactor Change-Id: I8b273bc3bf16aa360f031f1b2692f766e5fc4613 Signed-off-by: Damjan Marion <damarion@cisco.com>
2021-03-26vlib: introduce vlib_get_main_by_index(), vlib_get_n_threads()Damjan Marion4-18/+18
Type: improvement Change-Id: If3da7d4338470912f37ff1794620418d928fb77f Signed-off-by: Damjan Marion <damarion@cisco.com>
2021-03-25nat: allocate enough space for full port usageKlement Sekera1-1/+1
Type: fix Change-Id: I068bfeaf22b9e6cce967c27acdd46d4b8541bdf8 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-03-25nat: fix bihash kvp printKlement Sekera1-2/+3
Type: fix Change-Id: I392d348b1a38affac8761b0614b117cd991958d7 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-03-25nat: prevent usage of ED nodes in EI codeKlement Sekera2-44/+118
Type: fix Change-Id: I84d511c30eb5878a1867f5e9d2207a39d4f0926c Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-03-25nat: fix vnet_feature_next in source hairpinningKlement Sekera1-3/+11
Avoid erroneous double vnet_feature_next if routing buffer manually. Type: fix Change-Id: I3f56c12bf57f59a1e5ddad63a2565fa195934cf6 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-03-20tests: add support for worker awarenessKlement Sekera2-2/+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>
2021-03-15nat: get rid of worker selection callbacksKlement Sekera8-81/+77
Make code easier to read and debug. Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: Ib52a4cdd3bcdcc475053aa32af3964c00859e1cd
2021-03-15nat: pnat copy and clear byte instructionsAndrew Yourtchenko13-161/+658
Type: feature Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: I8e48bdcc4c311717e067bb0a4e0b409a2eb8e83d Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> Signed-off-by: Ole Troan <ot@cisco.com>
2021-03-15nat: remove unused parameterKlement Sekera1-9/+9
Type: refactor Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: Ifb4a9c52fd2c5dd9f3f5cf41214aa1851f6d7acd
2021-03-12nat: remove unused importKlement Sekera1-1/+0
Type: style Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I66b7ed03f784f3992a910ad6a52ed89116a39297
2021-03-09tests: re-enable the rest of NAT44ED tests for multiworkerAndrew Yourtchenko1-1/+0
Type: test Change-Id: I37a12e3580c3631582f366944fe30f325b46f366 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2021-03-09nat: fix dst nat thread issuesKlement Sekera3-121/+124
Make sure packet lands on the right thread for dst nat case. Type: fix Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I0ec4e4c2bb3fa80ff73fac588c36d36420ba68fa
2021-03-09pnat: coverity fixesOle Troan2-3/+5
Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: Ia1cfdbd39ed458cb3fffd29a8b6d6eff64644de8
2021-03-07nat: replace main vlib with per-thread vlibKlement Sekera6-67/+53
Fix incorrect vlib main usage. Type: fix Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: Ic5304ca844f1b27756818eb6995b1d9c08412674
2021-03-07nat: fix worker selectionKlement Sekera7-89/+73
Use correct ports from SVR. Perform lookup of existing session for all cases to pick any created bypasses and derive correct thread indexes. Type: fix Change-Id: I1e3814c9e13cd4d9b8d65f514f7e9ab42df3c22e Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-03-07nat: test - add show traceKlement Sekera1-0/+1
Add missing show trace. Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I2f216bfc1bc70ebcbf5593214d46601f44f0b6e2
2021-03-06nat: use correct node indexes for queuesKlement Sekera1-2/+2
Type: fix Change-Id: I30b847acc4653fea9d609fc0d5875c3fda0824ef Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-03-01nat: avoid crash if plugin not enabledKlement Sekera1-18/+21
Avoid crash if nat pool not allocated when issuing "show nat44 summary". Type: fix Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I55661cf699bab04f4673e9d471fe12486e972067
2021-03-01nat: pick outside addr based on local addrKlement Sekera6-107/+215
Use outside addresses more evenly by using local address to pick from pool of addresses. This ensures stability from POV of remote host - an internal host always gets translated using the same outside address, so it doesn't appear to be "hopping". Also, this avoids all hosts being translated using the first address, which helps avoid needless recaptchas and the like. Exact assignment depends on internal ordering of addresses - local address is used to pick an offset into internal vector. If that address cannot be used, a linear search is performed as a fallback mechanism to find a possible translation. Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I7ccb1da1dda5537f5d30d2f4cb48024f4b51c1a4
2021-02-26nat: optimize flow matching in ED NATKlement Sekera5-81/+87
This saves 6 clocks in nat44-ed-in2out node. (112->106 per packet) Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I48e757e7f4b6b0d250a432a4659fe6955fc52a07
2021-02-26nat: NAT44ED fail if using old plugin optionFilip Varga3-448/+496
Fail if obsolete flag is used. Type: fix Change-Id: Id7000de9c82fa2c22692104b2fc1d463e5961f39 Signed-off-by: Filip Varga <fivarga@cisco.com>
2021-02-24nat: Final NAT44 EI/ED split patchFilip Varga44-5781/+10760
This patch achieves complete separation of endpoint-dependent and endpoint-independent IPv4 NAT features. Some common stuff is also moved to NAT library. Type: refactor Change-Id: I52468b7e2b5ac28958a2baf8e2ea01787322e801 Signed-off-by: Filip Varga <fivarga@cisco.com>
2021-02-24docs: move pnat doc link into dev doc sectionDave Wallace1-1/+1
- "PNAT: 1:1 match and rewrite programmable NAT" link was hanging out on the top level of the doc tree. Move it to VPP->Developer Documentation. Type: fix Signed-off-by: Dave Wallace <dwallacelf@gmail.com> Change-Id: Iadb7d3463567a2414eece68db0a3743237ab26f9
2021-02-18tests: re-enable NAT44ED tests for multiworkerAndrew Yourtchenko1-1/+0
Re-enable the test for 2-worker config test Change-Id: Ie108c5d244c6704ffa152177ca77f6b6055fe38e Type: test Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2021-02-13nat: pnat only use save_rewrite_length on output pathOle Troan1-3/+2
Don't expect save_rewrite_length to be set correctly on RX path. Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: Ieee40d119213f617c3d836181e5879f084b74548 Signed-off-by: Ole Troan <ot@cisco.com>
2021-02-11tests: tag the tests that do not work with multi-worker configurationAndrew Yourtchenko4-0/+9
If the multi-worker default VPP configuration is triggered by setting VPP_WORKER_CONFIG="workers 2", some of the tests fail for various reasons. It's a substantial number, so this change marks all of the testsets that have this issue, such that they can be addressed later independently. Type: test Change-Id: I4f77196499edef3300afe7eabef9cbff91f794d3 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2021-02-10nat: fix EI hairpinning thread safetyKlement Sekera6-64/+810
Avoid doing inter-thread reads without locks by doing a handoff before destination address rewrite. Destination address is read from a session which is possibly owned by a different thread. By splitting the work in two parts with a handoff in the middle, we can do both in a thread safe way. Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I1c50d188393a610f5564fa230c75771a8065f273
2021-02-09nat: bump default max translations to 63KKlement Sekera1-1/+1
Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: Ibea7ec844d1d910e8a3235e11154b1ecea8302ac
2021-02-09nat: deny adding intf addr if static-mapping-onlyAlexander Chernavin1-0/+8
If static-mapping-only is enabled, NAT pool cannot be configured, only static mappings. There're two ways to add addresses to the NAT pool: by address range, or by first found address from an interface. NAT44_ADD_DEL_ADDRESS_RANGE already tests if dynamic mappings are available but NAT44_ADD_DEL_INTERFACE_ADDR doesn't. If static-mapping-only is enabled, adding addresses by range is rejected but by interface not. With this change, if static-mapping-only is enabled, do not allow to add addresses to the NAT pool both ways. Type: fix Signed-off-by: Alexander Chernavin <achernavin@netgate.com> Change-Id: Ifc055ea9a71a5e579388833a2990aef21bf7ed29
2021-02-09nat: fix coverity errorsOle Troan3-7/+6
Including a general missing free in fromjson autogenerated code. Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: I9ab2b0193135e2fb3d62d51b3c114df56969e341 Signed-off-by: Ole Troan <ot@cisco.com>
2021-02-09nat: improve type safety and remove unused paramKlement Sekera3-96/+76
Type: improvement Change-Id: I456f9b14e6a4eb46c9c49f6e09acccae530e4ebc Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-02-08misc: support api generated dependency for multiarch sourceOle Troan2-0/+5
Fix dependency issues where multi-arch file is using API generated file. Type: improvement Change-Id: I5d4af7a630529bc138c35841723e38938f36d963 Signed-off-by: Ole Troan <ot@cisco.com>
2021-02-05nat: 1:1 policy NATOle Troan14-0/+2437
A NAT sub-plugin doing statically configured match/rewrite on IP4 input or output. It's stateless (no connection tracking). Currently it supports rewriting of SA, DA and TCP/UDP ports. It should be simple to add new rewrites if required. API: pnat_binding_add, pnat_binding_del, pnat_bindings_get, pnat_interfaces_get CLI: set pnat translation interface <name> match <5-tuple> rewrite <5-tuple> {in|out} [del] show pnat translations show pnat interfaces Trying a new C based unit testing scheme. Where the graph node is tested in isolation. See pnat/pnat_test.c. Also added new cmake targets to generate coverage directly. E.g.: make test_pnat-ccov-report File '/vpp/sdnat/src/plugins/nat/pnat/pnat.c': Name Regions Miss Cover Lines Miss Cover ------------------------------------------------------------------------------------ pnat_interface_by_sw_if_index 39 8 79.49% 13 0 100.00% pnat_instructions_from_mask 9 0 100.00% 13 0 100.00% pnat_binding_add 64 8 87.50% 31 2 93.55% pnat_flow_lookup 4 4 0.00% 10 10 0.00% pnat_binding_attach 104 75 27.88% 33 6 81.82% pnat_binding_detach 30 5 83.33% 23 2 91.30% pnat_binding_del 97 33 65.98% 17 3 82.35% pnat.c:pnat_calc_key_from_5tuple 9 1 88.89% 14 1 92.86% pnat.c:pnat_interface_check_mask 10 2 80.00% 11 2 81.82% pnat.c:pnat_enable 5 0 100.00% 11 0 100.00% pnat.c:pnat_enable_interface 107 26 75.70% 60 15 75.00% pnat.c:pnat_disable_interface 91 30 67.03% 32 7 78.12% pnat.c:pnat_disable 7 2 71.43% 13 7 46.15% ------------------------------------------------------------------------------------ TOTAL 576 194 66.32% 281 55 80.43% File '/vpp/sdnat/src/plugins/nat/pnat/pnat_node.h': Name Regions Miss Cover Lines Miss Cover ------------------------------------------------------------------------------------ pnat_test.c:pnat_node_inline 67 11 83.58% 115 1 99.13% pnat_test.c:pnat_calc_key 9 2 77.78% 14 2 85.71% pnat_test.c:pnat_rewrite_ip4 55 11 80.00% 60 12 80.00% pnat_test.c:format_pnat_trace 1 1 0.00% 12 12 0.00% pnat_node.c:pnat_node_inline 63 63 0.00% 115 115 0.00% pnat_node.c:pnat_calc_key 9 9 0.00% 14 14 0.00% pnat_node.c:pnat_rewrite_ip4 55 55 0.00% 60 60 0.00% pnat_node.c:format_pnat_trace 5 5 0.00% 12 12 0.00% ------------------------------------------------------------------------------------ TOTAL 264 157 40.53% 402 228 43.28% Type: feature Change-Id: I9c897f833603054a8303e7369ebff6512517c9e0 Signed-off-by: Ole Troan <ot@cisco.com>
2021-02-05nat: configurable handoff frame queue sizeElias Rudberg7-6/+171
Make number of worker handoff frame queue elements configurable as a set nat frame-queue-nelts command. The default value is 64 which is the same value that was previously hard-coded. The idea is that allowing larger values can be useful in some cases, to avoid congestion drops. Also add nat_set_fq_options API support and a corresponding test case. Type: improvement Change-Id: I5c321eb2d7997f76fac2703d9c4a5b2516375db3 Signed-off-by: Elias Rudberg <elias.rudberg@bahnhof.net>
2021-02-04nat: reduce number of hash tables for EI NATKlement Sekera9-141/+141
Making code more simple and storing thread index along with session index as a preparation step for fixing thread safety patches. Type: improvement Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: Ib0c531e9f1f64b1f1ee912d4a83279200638e931
2021-01-18nat: deal with flows instead of sessionsKlement Sekera14-1960/+1860
This change introduces flow concept to endpoint-dependent NAT. Instead of having a session and a plethora of special cases in code for e.g. hairpinning, twice-nat and others, figure all this out and store it in flow logic. Every flow has a match and a rewrite part. This unifies all the NAT packet processing cases into one - match a flow and rewrite the packet based on that flow. It also provides a cure for hairpinning dilemma where one part of the flow is on one worker and another on a different one. These cases are also sped up by not requiring destination adress lookup every single time to be able to rewrite source nat as this is now part of flow rewrite logic. Type: improvement Change-Id: Ib60c992e16792ea4d4129bc10202ebb99a73b5be Signed-off-by: Klement Sekera <ksekera@cisco.com>
2021-01-11nat: refactor and split fo EI/ED features p.2Filip Varga8-351/+1216
Patch n. 2 aimed at moving EI features out of NAT44 plugin & split of EI/ED functions. Type: refactor Change-Id: Ida20c1c084449b146344b6c3d8442f49efb6f3fa Signed-off-by: Filip Varga <fivarga@cisco.com>
2021-01-05nat: refactor and split fo EI/ED featuresFilip Varga17-1026/+999
This patch is aimed at moving EI features out of NAT44 plugin & split of EI/ED functions. Type: refactor Change-Id: I63cf70a264ed2512708fe92665d64f04690783d0 Signed-off-by: Filip Varga <fivarga@cisco.com>
2020-12-16nat: refactor & MW support for NAT testsFilip Varga3-3598/+3662
Split ED and EI nat44 test cases. Added multi worker support for ED test cases. Type: refactor Change-Id: Ibcc2f62b94cacff69ed35c5d914b55f9fdbcf882 Signed-off-by: Filip Varga <fivarga@cisco.com>
2020-12-15nat: set out2in-dpo during plugin enablingAlexander Chernavin1-0/+1
Type: fix Change-Id: Ie41e2fb9393bf63099519150bb158b830d2c0d87 Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
2020-12-14misc: refactor clib_bitmap_foreach macroDamjan Marion2-10/+10
Type: refactor Change-Id: I077110e1a422722e20aa546a6f3224c06ab0cde5 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-12-14misc: move to new pool_foreach macrosDamjan Marion18-241/+241
Type: refactor Change-Id: Ie67dc579e88132ddb1ee4a34cb69f96920101772 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-12-14vppinfra: simpler and faster pool_foreachDamjan Marion1-1/+1
- reduces number of instructions generated 4 times compared to old code - adds pool_foreach2 which is more friendly to clang-format Type: improvement Change-Id: I51e9c7fb09655c60d883987dadf5b2666c12b3f7 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-12-13nat: revert 'fix byte order on ipfix message fields'Damjan Marion1-6/+3
This reverts commit bfba2d555331ce67f707e608877e96dbd2aacd80. Reason for revert: breaks test test_nat44.TestNAT44.test_ipfix_max_sessions Change-Id: I6eed4d02835ab792e7e3491fc14240cc88a86710 Type: fix Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-12-11nat: fix byte order on ipfix message fieldsMatthew Smith1-3/+6
Type: fix The code for quota exceeded events is a u32 and was being copied into ipfix packets in host byte order. Same for the limit field. Swap the order before copying into packet buffer. Change-Id: I881766e1c52acc9bebde38d85228fa492214ee21 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2020-12-08nat: avoid hairpinning infinite loop problemElias Rudberg2-0/+100
Fix in nat44 hairpinning code to check if anything was actually changed in the snat_hairpinning() routine, and return 0 if nothing changed. This helps avoid an infinite loop repeating the three nodes nat44-hairpinning-->ip4-lookup-->ip4-local in case there was no change. Also add a corresponding test case. Type: fix Signed-off-by: Elias Rudberg <elias.rudberg@bahnhof.net> Change-Id: I95f48476bd002ac4c6789afe504681f1963e5d38 Signed-off-by: Elias Rudberg <elias.rudberg@bahnhof.net>
2020-12-07tests: py2 cleanup - remove subclassing of objectPaul Vinciguerra12-12/+12
Type: refactor Change-Id: I9096e3b473110350e1e8e5936e3c4c164f8969a7 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>