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2018-02-07acl-plugin: multicore: send the interrupts to thread0 tooAndrew Yourtchenko1-1/+1
The thread0 in some configurations can handle the traffic. Some of the previous fixes accomodated for that, but the interrupt sending for connection clearing was not adapted to that, resulting in a deadlock during clearing of all connections... Change-Id: I32b4c7bac09c91c22b796baab843bdaf41f7045c Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2018-02-07classifier-based ACL: refactor + add output ACLAndrew Yourtchenko1-1/+1
For implementation of MACIP ACLs enhancement (VPP-1088), an outbound classifier-based ACL would be needed. There was an existing incomplete code for outbound ACLs, it looked almost exact copy of input ACLs, minus the various enhancements, trying to sync that code seemed error-prone and cumbersome to maintain in the longer run. This change refactors the input+output ACLs processing into a unified routine (thus any changes will have effect on both), and also adds the API to set the output interface ACL, with the same format and semantics as the existing input one (except working on output ACL of course). WARNING: IP outbound ACL in L3 mode clobbers the ip.* fields in the vnet_buffer_opaque_t, since the code is using l2_classify.* The net_buffer (p0)->ip.save_rewrite_length is rescued into l2_classify.pad.l2_len, and used to rewind the header in case of drop, so that ipX_drop prints something sensible. Change-Id: I62f814f1e3650e504474a3a5359edb8a0a8836ed Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2018-02-06Reflexive ACL support on ICMPSteve Shin1-25/+113
Normally session keys are generated by mirroring the packets sent. ICMP message type should be used and inverted for the stateful ACL. Supported ICMP messages with this patch: - ICMPv4: Echo/Timestamp/Information/Address Mask requests - ICMPv6: Echo request/Node Information Queury The invmap & valid_new tables can be modified to make any other ICMP messages to be reflexive ACL. Change-Id: Ia47b08b79fe0a5b1f7a995af78de3763d275dbd9 Signed-off-by: Steve Shin <jonshin@cisco.com>
2018-01-23VPPAPIGEN: vppapigen replacement in Python PLY.Ole Troan1-1/+1
This is a version of the VPP API generator in Python PLY. It supports the existing language, and has a plugin architecture for generators. Currently C and JSON are supported. Changes: - vl_api_version to option version = "major.minor.patch" - enum support - Added error checking and reporting - import support (removed the C pre-processor) - services (tying request/reply together) Version: option version = "1.0.0"; Enum: enum colours { RED, BLUE = 50, }; define foo { vl_api_colours_t colours; }; Services: service { rpc foo returns foo_reply; rpc foo_dump returns stream foo_details; rpc want_stats returns want_stats_reply events ip4_counters, ip6_counters; }; Future planned features: - unions - bool, text - array support (including length) - proto3 output plugin - Refactor C/C++ generator as a plugin - Refactor Java generator as a plugin Change-Id: Ifa289966c790e1b1a8e2938a91e69331e3a58bdf Signed-off-by: Ole Troan <ot@cisco.com>
2018-01-16acl-plugin: multicore: use pool_init_fixed for per-worker preallocated poolsAndrew Yourtchenko1-1/+7
One worker thread may be processing the packets for session owned by another worker thread. During session access the validity of the pool index is checked - however, the free bitmap pointer might change just at that moment, potentially resulting in a crash. Thus, use the pool_init_fixed() when initializing the per-worker pools, so that the free bitmaps are as well staying in their place. Change-Id: I5796e6b62fdc1efd4299124a388b84a7c0dc19cd Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2018-01-11api: remove transport specific code from handlersFlorin Coras1-57/+45
This does not update api client code. In other words, if the client assumes the transport is shmem based, this patch does not change that. Furthermore, code that checks queue size, for tail dropping, is not updated. Done for the following apis: Plugins - acl - gtpu - memif - nat - pppoe VNET - bfd - bier - tapv2 - vhost user - dhcp - flow - geneve - ip - punt - ipsec/ipsec-gre - l2 - l2tp - lisp-cp/one-cp - lisp-gpe - map - mpls - policer - session - span - udp - tap - vxlan/vxlan-gpe - interface VPP - api/api.c OAM - oam_api.c Stats - stats.c Change-Id: I0e33ecefb2bdab0295698c0add948068a5a83345 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-01-09api: refactor vlibmemoryFlorin Coras1-10/+10
- separate client/server code for both memory and socket apis - separate memory api code from generic vlib api code - move unix_shared_memory_fifo to svm and rename to svm_fifo_t - overall declutter Change-Id: I90cdd98ff74d0787d58825b914b0f1eafcfa4dc2 Signed-off-by: Florin Coras <fcoras@cisco.com>
2017-12-20acl-plugin: add a debug CLI to print 5-tuple structure in human readable ↵Andrew Yourtchenko3-0/+33
format from hex representation Even though the trace now prints the hex as well as human readable format for acl plugin, it can be handy to have a separate function which allows to decode the hex. So add this debug CLI. Change-Id: I1db133a043374817ea9e94ae3736b8a98630669d Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-12-11acl-plugin: unapply/reapply the classifier-based inacls when performing ↵Andrew Yourtchenko1-1/+29
macip_acl_add_replace on an existing MACIP ACL The classifier tables layout might (and most always will) change during the MACIP ACL modification. Furthermore, vnet_set_input_acl_intfc() is quite a picky creature - it quietly does nothing if there is an existing inacl applied, even if the number is different, so a simple "reapply" does not work. So, cleanly remove inacl, then reapply when the new tables are ready. Also, fix the testcase which was supposed to test this exact behavior. Thanks to Jon Loeliger for spotting this issue. Change-Id: I7e4bd8023d9de7e914448bb4466c1b0ef6940f58 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-12-01acl-plugin: fix coverity 177970-177973,178891, and incorrect reset of ↵Andrew Yourtchenko1-13/+33
dot1q/dot1ad classifier mask 17797[1-3] have been a false positive in the optional debug CLI argument handling, 178891 was triggered by an unnecessary use of memcpy. Also fix the issue reported by khers (thanks!) - since 178891 was in the same place. Change-Id: I3a804e2b1d25d74c11fcc389020d2c1fd69902b2 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-11-17acl-plugin: use ip.save_rewrite_length to calculate IP header offset on L3 ↵Andrew Yourtchenko1-3/+11
egress path L3 egress path does not set the ethernet flags reflecting the count of VLANs, but rather has the offset explicitly, so use that. Change-Id: Id3f6562dcd52ca24137c305f1a1c88c1f125da78 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-11-16acl-plugin: also print human-friendly format of 5tuple in packet traceAndrew Yourtchenko1-0/+22
The original version printed just a few u64s, which is useful for directly working on the code, but not when figuring out what is possibly a config or environment-related issue. So, add printing the 5-tuple struct in a way that is usable by an operator. Change-Id: I84cc3a239cdaff05ed31c3458cea198e38b58e03 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-11-11ACL: Add coding-style-patch-verification and indent.Jon Loeliger1-965/+1260
Change-Id: I2397ada9760d546423e031ad45535ef8801b05e7 Signed-off-by: Jon Loeliger <jdl@netgate.com>
2017-11-11ACLs: Use better error return codes than "-1" everywhere.Jon Loeliger1-14/+14
Added two new errors: ACL_IN_USE_INBOUND ACL_IN_USE_OUTBOUND Update ACL tests to expect new, precise return values. Change-Id: I644861a18aa5b70cce5f451dd6655641160c7697 Signed-off-by: Jon Loeliger <jdl@netgate.com>
2017-11-08ACL plugin support tagged subinterfacesPavel Kotucek2-40/+311
Change-Id: I92b351895c7efb26533c05512b91ead8ddbfb9c8 Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
2017-10-30Minor copyedit fixes to ACL Hash doc.Jon Loeliger1-7/+6
Change-Id: I7fe34e99f566dd2e0a36a9ba38f894973989ca8a Signed-off-by: Jon Loeliger <jdl@netgate.com>
2017-10-27acl-plugin: increase the amount of memory for classifier tables used by ↵Andrew Yourtchenko1-1/+1
MACIP ACLs The classifier tables upper bound of memory was just big enough to cause the unittests pass most of the time but not always. Increase the amount of space and run several hundred iterations of unittests to ensure they always pass. Change-Id: Ieb7876c6ebdde1f8c5273dbb9b090f12f2c38915 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-10-26acl-plugin: refactor the "show acl-plugin" CLI, use vlib_cli_output() vs. ↵Andrew Yourtchenko1-181/+194
format() The vppctl was getting upset with large chunks of info generated by repeated format() functions, so convert to use vlib_cli_output instead. Also, refactor the show functionality into smaller functions, separate from the input handling. Change-Id: I5d0db5ac45ce4c1b59cd41526b837412e06b1ce0 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-10-13acl-plugin: display "::" for INADDR6_ANY on ACL outputSteve Shin2-5/+10
INADDR6_ANY should be displayed as "::" instead of "0.0.0.0"(ipv4 format). Change-Id: I24ec7b6febbfeca5db7ff894f455ecb73d954334 Signed-off-by: Steve Shin <jonshin@cisco.com>
2017-10-13acl-plugin: split the "show" commands and add an option to show ACLs by ↵Andrew Yourtchenko1-317/+407
interface From the troubleshooting perspective, it is nice to immediately know the ACEs for the ACLs applied to an interface, so implement that. To make the CLI more friendly, split each of the "show" variants into an independent _cmd function with the distinct CLI path. Change-Id: I519e4799083c04e8f0fcdf3e262a73493be4b690 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-10-09vppapigen: support per-file (major,minor,patch) version stampsDave Barach1-0/+1
Add one of these statements to foo.api: vl_api_version 1.2.3 to generate a version tuple stanza in foo.api.h: /****** Version tuple *****/ vl_api_version_tuple(foo, 1, 2, 3) Change-Id: Ic514439e4677999daa8463a94f948f76b132ff15 Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Ole Troan <ot@cisco.com>
2017-10-03Repair vlib API socket serverDave Barach3-3/+0
- Teach vpp_api_test to send/receive API messages over sockets - Add memfd-based shared memory - Add api messages to create memfd-based shared memory segments - vpp_api_test supports both socket and shared memory segment connections - vpp_api_test pivot from socket to shared memory API messaging - add socket client support to libvlibclient.so - dead client reaper sends ping messages, container-friendly - dead client reaper falls back to kill (<pid>, 0) live checking if e.g. a python app goes silent for tens of seconds - handle ping messages in python client support code - teach show api ring about pairwise shared-memory segments - fix ip probing of already resolved destinations (VPP-998) We'll need this work to implement proper host-stack client isolation Change-Id: Ic23b65f75c854d0393d9a2e9d6b122a9551be769 Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Dave Wallace <dwallacelf@gmail.com> Signed-off-by: Florin Coras <fcoras@cisco.com>
2017-09-28General documentation updatesChris Luke2-3/+5
- We now have several developer-focused docs, so create an index page for them. - Rework several docs to fit into the index structure. - Experiment with code highlighting; tweak the CSS slightly to make it slightly nicer to look at. Change-Id: I4185a18f84fa0764745ca7a3148276064a3155c6 Signed-off-by: Chris Luke <chrisy@flirble.org>
2017-09-27acl-plugin: take 2 at VPP-991 fix, this time with a test case which verifies it.Andrew Yourtchenko1-2/+2
The replacement of [] with pool_elt_at_index and subsequent fixing it was incorrect - it was equivalent to &[], since it returns a pointer to the element. I've added VPP-993 previously to create a testcase, so this commit partially fulfills that one as well. Change-Id: I5b15e3ce48316f0429232aacf885e8f7c63d9522 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-09-25acl-plugin: use vec_elt_at_index rather than pool_elt_at_index to access ↵Andrew Yourtchenko1-2/+2
vector elements bb7f0f644 aimed to fix the coverity issue has incorrectly replaced the previous [] access with pool_elt_at_index(), for an element of a vector, with predictably interesting result. VPP-991 has uncovered the issue. Change-Id: Ifd3fb70332d3fdd1c4ff8570372f394913f7b6c8 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-09-22acl-plugin: remove the clib_warning "ACL enabling..."Andrew Yourtchenko1-4/+0
It was useful for debugging once upon a time... but time to say goodbye to it... Also remove the warning printed when sending ACL details. Change-Id: I43b2537e176556831eb7ff34b25c9068aa05ee27 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-09-19ACL plugin enable macip for ip4/ip6 trafficPavel Kotucek1-8/+4
Plus fixed problem with acl heap. Change-Id: I3d91db549ebe4595f1dab9b8780f90722540024b Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
2017-09-18ACL-plugin: fix coverity issuePavel Kotucek1-17/+17
Fix coverity CIDs 176805, 176806, 176811, 176812 Change-Id: I73591c922307e7a98d38d5d92ebf37c8b2ff0145 Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
2017-09-12acl-plugin: add startup-config section "acl-plugin" and heap/hash parametersAndrew Yourtchenko3-4/+60
This adds the ability to tweak the memory allocation parameters of the ACL plugin from the startup config. It may be useful in the cases involving higher limit of the connections than the default 1M, or the high number of cores. Change-Id: I2b6fb3f61126ff3ee998424b762b6aefe8fb1b8e Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-09-12ACL-plugin add "replace" semantics for adding a new MacIP aclPavel Kotucek4-18/+295
Change-Id: Ia5c869b2d8b8ad012b9e89fb6720c9c32d9ee065 Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
2017-09-08ACL-plugin MACIP ACLs testsPavel Kotucek1-2/+16
Change-Id: Ie40c837358454cfe9475cb2c14fdf20b24fa6602 Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
2017-09-08acl-plugin: add hitcount to applied hash-acl entriesAndrew Yourtchenko3-4/+10
Add a counter incremented upon the ACL check, so it is easier to see which kind of traffic is being checked by the policy, add the corresponding output to the debug CLI "show acl-plugin tables" command. Change-Id: Id811dddf204e63eeceabfcc509e3e9c5aae1dbc8 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-09-07acl-plugin: match index set to first portrange element if non-first ↵Andrew Yourtchenko1-5/+1
portrange matches on the same hash key (VPP-937) Multiple portranges that land on the same hash key will always report the match on the first portrange - even when the subsequent portranges have matched. Test escape, so make a corresponding test case and fix the code so it passes. (the commit on stable/1707 has erroneously mentioned VPP-938 jira ticket) Change-Id: Idbeb8a122252ead2468f5f9dbaf72cf0e8bb78f1 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit fb088f0a201270e949469c915c529d75ad13353e) Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-08-25acl-plugin: warning printed when acl_add_replace already applied ACLs ↵Andrew Yourtchenko4-17/+49
(complete the fix for VPP-935) The fix for VPP-935 missed the case that hash_acl_add() and hash_acl_delete() may be called during the replacement of the existing applied ACL, as a result the "applied" logic needs to be replicated for the hash acls separately, since it is a lower layer. Change-Id: I7dcb2b120fcbdceb5e59acb5029f9eb77bd0f240 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit ce9714032d36d18abe72981552219dff871ff392)
2017-08-22acl-plugin: Recreate the bihash_40_8.h in the proper placeAndrew Yourtchenko4-87/+4
Change-Id: I30a3df53bc5fe5ab991a657918eb502bd2913440 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-08-18Fix vpp crash when adding macip aclPavel Kotucek1-1/+1
When adding at least two different types of MACIP acl vpp crash. Change-Id: Ibbc76b94015311945be081fe0d8af71cf0672332 Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
2017-08-18Fix small issues in ACL apiPavel Kotucek1-3/+11
Enable IP address without prefix length, if not given use max (32/128) Parse correctly type of acl (ipv4). Change-Id: I3d5d6b45037c9e0f95d2d112ae584f006c6cb4d1 Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
2017-08-18acl-plugin: time out the sessions created by main thread too (VPP-948)Andrew Yourtchenko4-13/+28
In multithread setup the main thread may send packets, which may pass through the node with permit+reflect action. This creates the connection in lists for thread0, however in multithread there are no interupt handlers there. Ensure we are not spending too much time spinning in a tight cycle by suspending the main cleaner thread until the current iteration of interrupts is processed. Change-Id: Idb7346737757ee9a67b5d3e549bc9ad9aab22e89 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit c1ff53f25d04ec1cc31844abd38014e91e398b5f)
2017-08-15acl-plugin: don't attempt to delete the ACLs on interface deletion if ACL ↵Andrew Yourtchenko1-0/+4
plugin heap is not initialized With the addition of the own heap, the delete routines called from interface deletion callback may attempt to initialize the ACL plugin heap. This is obviously not a desirable condition - so, return early from the callback if the ACL plugin heap has not been initialized yet - there is for sure nothing to clean up. Change-Id: I08a6ae725294016ff5824189ade91c288e2c473b Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2017-08-11acl-plugin: add the debug CLI to show macip ACLs and where they are applied ↵Andrew Yourtchenko1-0/+76
(VPP-936) When looking at resource utilisation, it is useful to understand the interactions between the acl-plugin and the rest of VPP. MACIP ACLs till now could only be dumped via API, which is tricky when debugging. Add the CLIs to see the MACIP ACLs and where they are applied. Change-Id: I3211901589e3dcff751697831c1cd0e19dcab1da Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit f2cfcf676e67a7ea80ce20a69826210eb97acba5)
2017-08-10acl-plugin: hash lookup bitmask not cleared when ACL is unapplied from ↵Andrew Yourtchenko3-4/+31
interface (VPP-935) The logic in hash ACL bitmask update was using the vector of ACLs applied to the interface to rebuild the hash lookup mask. However, in transient cases (like doing group manipulation with hash ACLs), that will not hold true. Thus, make a local copy of for which ACL indices the hash_acl_apply was called previously, and maintain that one local to the hash_lookup.c file logic. Change-Id: I30187d68febce8bba2ab6ffbb1eee13b5c96a44b Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit 1de7d7044434196610190011ebb431f054701259)
2017-08-10acl-plugin: avoid crash in multithreaded setup adding/deleting ACLs with ↵Andrew Yourtchenko3-0/+83
traffic (VPP-910/VPP-929) The commit fixing the VPP-910 and separating the memory operations into separate heaps has missed setting the MHEAP_FLAG_THREAD_SAFE, which quite obviously caused the issues in the multithread setup. Fix that. Also, add the debug CLIs "set acl-plugin heap {main|hash} {validate|trace} {1|0}" to toggle the memory instrumentation, in case we ever need it in the future. Change-Id: I8bd4f7978613f5ea75a030cfb90674dac34ae7bf Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit e6423bef32ca2ffcfcd7a092eb4673badd53ea4c)
2017-08-10acl-plugin: all TCP sessions treated as transient (VPP-932)Andrew Yourtchenko1-3/+6
The packet that was creating the session was not tracked, consequently the TCP flags seen within the session record never got the value for the session to get treated as being in the established state. Test-escape, so add the TCP tests which test the three phases of the TCP session life and make them all pass. Change-Id: Ib048bc30c809a7f03be2de7e8361c2c281270348 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit 754370f1b55d4102d21dd94676f2bda3170c7df0)
2017-08-08acl-plugin: fix a misplaced return (VPP-910)Andrew Yourtchenko1-1/+1
It was uncaught by make test because the corresponding tests are not there yet - part of 17.10 deliverables Change-Id: I55456f1874ce5665a06ee411c7abf37cd19ed814 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit 58013b73509521789608f24a79a00177797ff9b1)
2017-08-08MAC IP ACL interface list dump (as an alternative to the get/reply)Neale Ranns2-1/+90
Change-Id: I2e71aef1aa745e85ad3234b0b708cdc50f335a75 Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
2017-08-08acl-plugin: rework the optimization 7383, fortify acl-plugin memory behavior ↵Andrew Yourtchenko5-150/+289
(VPP-910) The further prolonged testing from testbed that reported VPP-910 has uncovered a couple of deeper issues with optimization from 7384, and the usage of subscripts rather than vec_elt_at_index() allowed to hide a couple of further errors in the code. Also, the current acl-plugin behavior of using the global heap for its dynamic data is problematic - it makes the troubleshooting much harder by potentially spreading the problem around. Based on this experience, this commits makes a few changes to fix the issues seen, also improving the serviceability of the acl-plugin code for the future: - Use separate mheaps for any ACL-related control plane operations and separate for the hash lookup datastructures, to compartmentalize any memory-related issues for the ACL plugin. - Ensure vec_elt_at_index() usage throughout the hash_lookup.c file. - Use vectors rather than raw memory for storing the "ordinary" ACL rules. - Rework the optimization from 7384 to use a separate tail pointer rather than overloading the "prev" field. - Make get_session_ptr() more conservative and adjust is_valid_session_ptr accordingly Change-Id: Ifda85193f361de5ed3782a4acd39622bd33c5830 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit bd9c5ffe39e9ce61db95d74d150e07d738f24da1)
2017-08-03acl-plugin: multicore: CSIT c100k 2-core stateful ACL test does not pass ↵Andrew Yourtchenko4-41/+106
(VPP-912) Fix several threading-related issues uncovered by the CSIT scale/performance test: - make the per-interface add/del counters per-thread - preallocate the per-worker session pools rather than attempting to resize them within the datapath - move the bihash initialization to the moment of ACL being applied rather than later during the connection creation - adjust the connection cleaning logic to not require the signaling from workers to main thread - make the connection lists check in the main thread robust against workers updating the list heads at the same time - add more information to "show acl-plugin sessions" to aid in debugging Change-Id: If82ef715e4993614df11db5e9afa7fa6b522d9bc Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit 8e4222fc7e23a478b021930ade3cb7d20938e398)
2017-07-23Improve L2 Input/Output Feature Infrastructure and UsageJohn Lo1-6/+1
Simplify L2 output feature infra to unify with L2 input feature infra using the newly improved feature bitmap mechanism. Updated all L2 features to use the more efficient infra functions. Change-Id: If8f463826b0af0717129befe92a27ea8cfc40449 Signed-off-by: John Lo <loj@cisco.com>
2017-07-20acl-plugin: assertion failed at hash_lookup.c:226 when modifying ACLs ↵Andrew Yourtchenko1-0/+11
applied as part of many (VPP-910) change 7385 has added the code which has the first ACE's "prev" entry within the linked list of shadowed ACEs pointing to the last ACE, in order to avoid the frequent linear list traversal. That change was not complete and did not update this "prev" entry whenever the last ACE was deleted. As a result the changes within the applied ACLs which caused the calls to hash_acl_unapply/hash_acl_apply may result in hitting assert which does the sanity check. The solution is to add the missing update logic. Change-Id: I9cbe9a7c68b92fa3a22a8efd11b679667d38f186 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit 45fe7399152f5ca511ba0b03fee3d5a3dffd1897)
2017-07-04acl-plugin: VPP-897: applying of large number of ACEs is slowAndrew Yourtchenko2-20/+45
When applying ACEs, in the new hash-based scheme, for each ACE the lookup in the hash table is done, and either that ACE is added to the end of the existing list if there is a match, or a new list is created if there is no match. Usually ACEs do not overlap, so this operation is fast, however, the fragment-permit entries in case of a large number of ACLs create a huge list which needs to be traversed for every other ACE being added, slowing down the process dramatically. The solution is to add an explicit flag to denote the first element of the chain, and use the "prev" index of that element to point to the tail element. The "next" field of the last element is still ~0 and if we touch that one, we do the linear search to find the first one, but that is a relatively infrequent operation. Change-Id: I352a3becd7854cf39aae65f0950afad7d18a70aa Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com> (cherry picked from commit 204cf74aed51ca07933df7c606754abb4b26fd82)