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2021-05-12session: support half-close connectionliuyacan1-1/+25
Some app(e.g. Envoy) may call shutdown() instead of close() when draining connection. Type: improvement Signed-off-by: liuyacan <liuyacan@corp.netease.com> Change-Id: I9543b9ca3caa87b10b134fd1fc4019124e41e4d2
2021-05-10session: use half-open sessions for vc establishmentFlorin Coras1-3/+15
Use half-open sessions to track virtual circuit connection establishment. These sesssions can only be allocated and freed by the thread that allocates half-open connections (main). Consequently, they can only be freed on half-open cleanup notifications from transports. Goal is to simplify state tracking within the session layer but it's also a first step towards allowing builtin apps to track and cleanup outstanding connects. Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I8a535906d13eb7f8966deb82333839de80f8049f
2021-05-05tcp: cleanup rcv-process and bulk buffer translationFlorin Coras1-141/+160
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I2ca8a5e30e55a84d4567422e4b7fcf90830921d3
2021-05-05tcp: cleanup listen node and bulk buffer translationFlorin Coras1-41/+48
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I2d11b1411a7653b94fddd889a5f28640c5f5566c
2021-05-05tcp: cleanup syn-sent and bulk buffer translationFlorin Coras1-112/+124
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Idb286e77a877a6a60aa532263277f002fc002e48
2021-05-04tcp: cleanup established and bulk buffer translationFlorin Coras1-29/+28
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ic37f640b7f0d0a041c003e76c8f29c21b5e664b3
2021-05-01vlib: refactor trajectory trace debug featureBenoît Ganne2-15/+1
trajectory trace has been broken for a while because we used to save the buffer trajectory in a vector pointed to in opaque2. This does not work well when opaque2 is copied (eg. because of a clone) as 2 buffers end up sharing the same vector. This dedicates a full cacheline in the buffer metadata instead when trajectory is compiled in. No dynamic allocation, no sharing, no tears. Type: refactor Change-Id: I6a028ca1b48d38f393a36979e5e452c2dd48ad3f Signed-off-by: Benoît Ganne <bganne@cisco.com>
2021-04-23tcp: try to update sack list only if not emptyFlorin Coras1-1/+1
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ieb5af96de5be33356dbab7bc4ab4696731fa8866
2021-04-23tcp: reorganize connection membersFlorin Coras2-8/+8
Optimize connection size and move timestamp_delta closer to other timestamp related members. Type: refactor Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Iec42efb46482ebfdf234518a4e91af836e4f4c07
2021-04-20tcp: req app deq notification on fifo fullFlorin Coras2-1/+26
If fifo full, default to requesting an app deq notification and forcing an ack (window update) if zero rcv window sent is still active. Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Iade7e1722503da149c62c465c472edbb0a5599f7
2021-04-15tcp: support for rate sample attr flagFlorin Coras1-0/+14
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I94b8063c9d8f9b811589c6815cb5c8ca6220f2b5
2021-04-14session tcp vcl: api to update connection attributesFlorin Coras3-0/+103
Type: feature Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ifdd6024daf044751895bb8d2deabad41d3a80c92
2021-04-05tcp: time infra improvementsFlorin Coras7-33/+46
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I998c0686f9f7dc556dda8b28e23bbed127d0aafc
2021-03-26vlib: convert foreach_vlib_main macro to be more gdb and clang-format friendlyDamjan Marion1-13/+13
Type: improvement Change-Id: I1152e58d7bfcb3c4347147f87a834d45ad51cdfe Signed-off-by: Damjan Marion <damarion@cisco.com>
2021-03-26vlib: introduce vlib_get_main_by_index(), vlib_get_n_threads()Damjan Marion1-1/+1
Type: improvement Change-Id: If3da7d4338470912f37ff1794620418d928fb77f Signed-off-by: Damjan Marion <damarion@cisco.com>
2021-03-19interface: add capabilities flagsMohsin Kazmi1-1/+1
Type: improvement This patch adds flags to represent the modern NICs capabilities. Change-Id: I96d38d9ab7eac55974d72795cd100d8337168e1e Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-03-08tcp: account for option alignment in initial snd_mssFlorin Coras1-2/+3
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I24225ada6623c5b5543341ecac0d6c1db43cc8a9
2021-02-15vlib: refactor checksum offload supportMohsin Kazmi1-1/+1
Type: refactor This patch refactors the offload flags in vlib_buffer_t. There are two main reasons behind this refactoring. First, offload flags are insufficient to represent outer and inner headers offloads. Second, room for these flags in first cacheline of vlib_buffer_t is also limited. This patch introduces a generic offload flag in first cacheline. And detailed offload flags in 2nd cacheline of the structure for performance optimization. Change-Id: Icc363a142fb9208ec7113ab5bbfc8230181f6004 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-02-05tcp: fix port reuse with multiple listenersFlorin Coras2-3/+11
The check in listen state that the listener is not valid is not enough if the time wait session's index overlaps an actual listener's index. Thanks wanghanlin@corp.netease.com for the report! Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I3dff0cb134940a8265ff908faa607c67dba5e56b
2021-01-16tcp: remove bad assertIvan Shvedunov1-5/+2
Don't assume that half-open connections pending removal are always successful. Type: fix Signed-off-by: Ivan Shvedunov <ivan4th@gmail.com> Change-Id: I955077a4ed2389b9ee38d97e27a7c7761c860a4a
2020-12-21tcp: terminate options with nopsFlorin Coras1-8/+4
On the one hand, make sure options are terminated with NOPs to avoid issues with clients that can't parse options that don't end on an u32 boundary. On the other, make sure the padding is rfc compliant. If options end with EOL the padding should be zeros. The current change does not use EOL so the padding is NOPs. Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I608056707ef9658ca90b9c095e84a0689d8000d7
2020-12-14misc: move to new pool_foreach macrosDamjan Marion1-2/+2
Type: refactor Change-Id: Ie67dc579e88132ddb1ee4a34cb69f96920101772 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-11-25tcp: enable lc if any other debug option enabledFlorin Coras2-11/+34
Also fix debug build after snd_una_nxt removal. Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ife52689cd30cdebf36057cf4d20d7f6207f1e29e
2020-11-12tcp: push last buffered sequenceFlorin Coras2-6/+7
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Iba914ac69585e89f174f09e74ae716df1b080c59
2020-11-11tcp: validate fin seq in closing statesFlorin Coras1-0/+3
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Id8673cff699cfdc1ac68797b9ab5cdf6f6b578a3
2020-11-10tcp: fix test for trailing bytesFlorin Coras1-1/+1
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I6455f2d38a2927f16fd4cb0e26b8560a2357cebe
2020-11-09session: delegate fifo ooo lookup init to transportsFlorin Coras1-0/+3
Fifo chunk ooo lookup data structures are private (not allocated on segment heap) and should only be initialized by transport protocols that require out-of-order enqueues/dequeues (like tcp). Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Iaa15d6850385bf903cc501c54c2752e8e811449e
2020-11-05tcp: avoid consuming trailing bytesFlorin Coras1-0/+4
Thanks to Shaligram Prakash <Shaligram.Prakash@enea.com> for reporting. Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I135d23957a0dbb56a30994dfe3a316efd1eabad1
2020-10-28misc: Break the big IP header files to improve compile timeNeale Ranns1-0/+2
Type: refactor Signed-off-by: Neale Ranns <neale.ranns@cisco.com> Change-Id: Id1801519638a9b97175847d7ed58824fb83433d6
2020-10-26tcp: byte tracker fixRyujiro Shibuya1-1/+5
Type: fix Signed-off-by: Ryujiro Shibuya <ryujiro.shibuya@owmobility.com> Change-Id: If7e22978a6b65f5b68ccb2bd97b5e0fba167b3bf
2020-10-23tcp: remove snd_una_maxFlorin Coras7-22/+15
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I03f923053499f219035c9b7b6640fc575568d474
2020-10-23tcp: remove force retransmit timer updateFlorin Coras2-17/+8
Also simplify condition for detecting unintended timer pops. Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I8b120dfc2d16e40ee865240dbc9667708cd1c808
2020-10-23tcp: remove delack time configFlorin Coras2-4/+0
Type: refactor Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Iae5045686c62ad9279be350cffeaa41b8297d179
2020-10-22tcp: no send space in timer recoveryFlorin Coras1-1/+4
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I9461b6539c504ca844c25d04abe95929f842e4e9
2020-10-21tcp: updating time constans as timer tick changedRyujiro Shibuya2-15/+17
Type: fix Signed-off-by: Ryujiro Shibuya <ryujiro.shibuya@owmobility.com> Change-Id: Ibe305b96f04ffdc95ddb07d144dc00119ae69a07
2020-10-21gso: remove dependency on tcp proto implementationFlorin Coras2-1/+1
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I3af84e968c38df0452746729dcb722d48fa438fb
2020-10-13tcp: fix bt acked_sacked on recoveryFlorin Coras1-2/+3
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I2e2d76661fbb07dd8c6afa3583bb18e01b7a7fb6
2020-10-13tcp: fix listener trace coverity warningFlorin Coras1-6/+2
Type: fix Change-Id: I75c0bd862260e188f625271c3bd545a7ab37af5d Signed-off-by: Florin Coras <fcoras@cisco.com>
2020-10-12tcp: use 100us timer resolutionFlorin Coras1-4/+4
Experimental reduction of tcp timer resolution from 100ms that allows for finer grained timers, if needed. Please report issues if any encountered. Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I4050f7691aa7365b77298b4427408a4a447834fa
2020-10-12tcp: fix connection reuse with no listenerFlorin Coras1-0/+6
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I674872f68406ac778779a68d3ad991f41765d4e2
2020-10-08tcp: treat pending timers as activeFlorin Coras3-3/+4
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ic63af51fab8dbefe79439554ea563f20e3788afa
2020-10-08tcp: custom geometry for timer wheelFlorin Coras4-25/+82
Type: refactor Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I04f992e5d91d21f1e5bbafef070478cfe268d94a
2020-09-24session tcp udp tls quic: improve cli formattingFlorin Coras2-4/+6
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Iae5dbb8aaaf82d8e95c2ee8bbbe6844c9dd49f80
2020-09-16tcp: make max gso packet size configurableSimon Zhang3-2/+8
Type: improvement Signed-off-by: Simon Zhang <yuwei1.zhang@intel.com> Change-Id: I14de90f07d825c5c99023996a88173ee855e9a6f
2020-09-02tcp: fix connection refused errorFlorin Coras1-1/+1
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I436741e061f11685980a71fb3989befc7af1e081
2020-08-20tcp: track reorder with sacksFlorin Coras6-38/+61
Type: feature Change-Id: I041bff2e8d589c171661de286fa1503531dff891 Signed-off-by: Florin Coras <fcoras@cisco.com>
2020-08-06misc: harmonize namesDave Barach1-14/+15
Type: fix Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: Ibad744788e200ce012ad88ff59c2c34920742454
2020-08-03tcp: improve timestamp rtt accuracyFlorin Coras6-43/+38
- switch to using vlib_time as reference for timestamps - use us precision ticks for tcp but keep using ms precision for timestamps. As a result, srtt, rttvar and rto are now measured in us instead of ms. MRTT samples from timestamps are converted from ms to us (not accurate under ms) while high precision samples are used with us precision, i.e., they're no longer converted to ms precision samples. Type: improvement Change-Id: Ibda559575d9b4fdc85b0985264f7c865ff367e34 Signed-off-by: Florin Coras <fcoras@cisco.com>
2020-07-30tcp: process syn in fin-wait-2Florin Coras1-0/+1
Type: improvement Change-Id: I379ba4270dad56fb0a06427a43e97bed36bdaa13 Signed-off-by: Florin Coras <fcoras@cisco.com>
2020-07-29tcp: fix skipping RSTs in SYN_SENT stateIvan Shvedunov1-0/+1
Type: fix Signed-off-by: Ivan Shvedunov <ivan4th@gmail.com> Change-Id: Ieddf8f03fdd14e71efaf4c78fe5b7f0d15c5cf5a