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path: root/src/vnet/ip/ip4_reassembly.c
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2019-08-02ipsec: FIx feature orderingNeale Ranns1-2/+1
Type: fix Fixes: 1404698df397bc4d3007daea41f52ad75ed4486c Change-Id: Ibb77d95bb5e862cf5d1cb65843c526fd2e225c62 Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-31ip: Ensure reassembly runs before IPSec decrypt.Neale Ranns1-1/+3
Type: fix Change-Id: I01eeedf8d5015b07b9422c65afe78bfe8177c22c Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-07-09vppinfra: allocate bihash virtual space on demandDave Barach1-0/+1
Reduces the vpp image virtual size by multiple gigabytes Add a "show bihash" command which displays configured and current virtual space in use by bihash tables. Modify the .py test framework to call "show bihash" on test tear-down Type: refactor Change-Id: Ifc1b7e2c43d29bbef645f6802fa29ff8ef09940c Signed-off-by: Dave Barach <dave@barachs.net>
2019-06-24vlib: packet tracer support for pkt thread handoffsDave Barach1-6/+0
Type: feature Change-Id: Ia3d9a47679202c2a47cd3746b50e86c6b8627ef6 Signed-off-by: Dave Barach <dave@barachs.net>
2019-06-18ip: reassembly-separate feature and custom codeKlement Sekera1-30/+31
This change is made fix a crash, because is_feature flag semantics turn out to be different from "custom app code" semantics. Introduce a flag which custom plugins/apps can use to instead of tying that code to is_feature flag. Change-Id: Ief5898711e68529f9306cfac54c4dc9b3650f9e3 Ticket: N/A Type: fix Fixes: 21aa8f1022590b8b5caf819b4bbd485de0f1dfe5 Signed-off-by: Klement Sekera <ksekera@cisco.com> Signed-off-by: Ole Troan <ot@cisco.com>
2019-06-06reassembly: support more custom options for appsKlement Sekera1-14/+57
Change-Id: Ib9f98fba5a724480ca95f11a762002c53e08df70 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-05-24ip4/6-reassembly fixesVijayabhaskar Katamreddy1-2/+10
When multichained fragments comes into reassembly, followed by buffer Linearization or dropping the buffer for other reasons inbetween disturbs the multichained mbuf linking. When packet is transmitted, followed by freeing of the buffers, woudl result in double free and packet corruptions Change-Id: Ib5711d54e61fdd6a67deb30dad0b2a14afb9c2da Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com>
2019-05-20reassembly: prevent long chain attackKlement Sekera1-7/+38
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>
2019-04-30reassembly: avoid race-conditionsKlement Sekera1-12/+26
Change-Id: Ibf5c283217a985e43a562f1969573eeb26ee6017 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2019-03-12ip: migrate old MULTIARCH macros to VLIB_NODE_FNFilip Tehlar1-16/+22
Change-Id: Id55ec87724e421d5b722314f9302c6ade7545306 Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
2019-03-04Hash and handoff reassembly fragmentsVijayabhaskar Katamreddy1-28/+232
in the following two scenarios 1. When fragments arrive in multiple interfaces and endup in different threads 2. When fragments arrive in same interafce but in different queues due to interface RSS doesnt have the ability to place fragments in the right queues Change-Id: I9f9a8a4085692055ef6823d634c8e19ff3daea05 Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com>
2019-02-25buffer chain linearizationKlement Sekera1-172/+26
Rewrite vlib_buffer_chain_linearize function so that it works as intended. Linearize buffer chains coming out of reassembly to work around some dpdk-tx issues. Note that this is not a complete workaround as a sufficiently large packet will still cause the resulting chain to be too long. Drop features from reassembly code which relies on knowing which and how many buffers were freed during linearization, buffer counts and tracing capabilities for these cases. Change-Id: Ic65de53ecb5c78cd96b178033f6a576ab4060ed1 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-12-20reassembly: replace asserts with error countersKlement Sekera1-76/+171
Change-Id: Iaa39aea990bc04147f6a049215e990a567d30106 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-12-16VPP-1523: harden reassemblyKlement Sekera1-5/+3
Change-Id: I00d7b38bd99e81e3921ce08cce50d613f11de36e Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-12-13reassembly: fix internal buffer count accountingKlement Sekera1-0/+3
Change-Id: I6af2c8552aeafe0abc8b8c3e5af1a05640e95919 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-12-13VPP-1522: harden reassembly codeKlement Sekera1-23/+38
Change-Id: Ib5a20bff7d8a340ecf50bcd4a023d6bf36382ba3 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-11-14Remove c-11 memcpy checks from perf-critical codeDave Barach1-2/+2
Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1 Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-23c11 safe string handling supportDave Barach1-2/+2
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-10reassembly: get number of workers instead of threads (VPP-1435)Juraj Sloboda1-3/+3
Change-Id: If3abeab2b304e2df41139707a4c8d045fab6ef99 Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
2018-09-26mismatch bi0 and b0 when finalizing ip reassembly.Kingwel Xie1-0/+1
bi0 always points to the first buffer in chain but b0 could be any fragment in a ip packet. It causes a vnet_feature_next function call to the wrong buffer and crashes sometime when there is >1 feature nodes under ip-unicast. The fix is simple, makes b0 and bi0 both pointed to the first buffer Change-Id: I7de36e68fb42b050fa63201abd98aeb6ba2e0cd3 Signed-off-by: Kingwel Xie <kingwel.xie@ericsson.com>
2018-09-14vlib: introduce user flags in vlib_frame_tDamjan Marion1-1/+1
Those flags have local significance and they can be used for sending hints to the next node. Change-Id: Ic2596ee81c64cd16f96344365370e8fcdc465354 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-07-19Remove unused argument to vlib_feature_nextDamjan Marion1-2/+1
Change-Id: Ieb8b53977fc8484c19780941e232ee072b667de3 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-07-02Fixing ip4-reassembly ip6-reassembly non feature node, next_node_index settingVijayabhaskar Katamreddy1-1/+1
Change-Id: Ib988d87e6758ffa31862096391f9f286b0797f2b Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com>
2018-06-28reassembly: optimize bihash usageKlement Sekera1-32/+28
Change-Id: I19690db9996ecb8c5e86415d2fd3c7133ce698f8 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-06-26node functions cannot be always_inlineDamjan Marion1-2/+2
Thanks to gcc-8 for highlighting this... Change-Id: I53bfab631a40fd1b680c76a48b0307a33fa2b154 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-04-27A bit of buffer metadata reshuffling to accommodate flow_idDamjan Marion1-2/+2
Change-Id: I2794384557c6272fe217269b14a9db09eda19220 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-04-03reassembly: bug fixesKlement Sekera1-6/+5
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>
2018-03-29Coverity fixes (VPP-1204)Chris Luke1-0/+2
Minor bug fixes CID 183000: double close CID 180996: dead code CID 180995: NULL deref CID 181957: NULL deref CID 182676: NULL deref CID 182675: NULL deref Change-Id: Id35e391c95fafb8cd771984ee8a1a6e597056d37 Signed-off-by: Chris Luke <chrisy@flirble.org>
2018-03-21reassembly: feature/concurrencyKlement Sekera1-137/+291
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>
2018-02-05Fix ip4/6_reass_main.ip4/6_reass_expire_node_idx used before setDave Barach1-4/+8
Add an ASSERT to vlib_process_signal_event_helper to catch future instances of passing node_index = 0 to vlib_process_signal_event(). Change-Id: Iec896fc7c3917feb2fd3198cea42851ba88e64e5 Signed-off-by: Dave Barach <dave@barachs.net>
2018-02-03IP reassembly: workaround coverity warningsKlement Sekera1-0/+1
Change-Id: Ide577f036d9d8dcedd99cdb4666a0eaf8a19b92e Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-02-01IPv4/6 reassemblyKlement Sekera1-0/+1277
Change-Id: Ic5dcadd13c88b8a5e7896dab82404509c081614a Signed-off-by: Klement Sekera <ksekera@cisco.com>