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path: root/src/vnet/tcp/tcp.c
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2019-08-19session: add explicit reset apiFlorin Coras1-0/+13
Type: feature This can be used to forcefully close a session. It's only available to builtin applications for now. Transports must support the reset api otherwise normal close is used. Change-Id: I5e6d681cbc4c8045385e293e0e9d86fa2bf45849 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-19tcp: set cc_algo on connection allocFlorin Coras1-1/+15
Type: feature Change-Id: Ie00329b11e26cab5db64b9c006171d283854c8ef Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-19tcp: allow cc algos to set pacing rateFlorin Coras1-8/+2
Type: feature Change-Id: Ie7f0f5d2a476d401ede567e422abb953b2bb4a78 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-16tcp: fix cc algo name parsingFlorin Coras1-1/+1
Type: fix The initial config parser passed a pointer to the field algo id field in tcp main. Because the field is a u8 and it was interpreted as a uword, it ended up overwrting other tcp configuration fields. Change-Id: Ie9020051c8fca40e14cf42a9888daa87360e5038 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-14tcp: extend protocol configurationFlorin Coras1-47/+87
Type: feature Expose more configuration parameters and refactor some of the existing ones. Change-Id: If44c31ff77ce3d7e8da67d39a4ff61346bdf5ccc Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-08tcp: cleanup timersFlorin Coras1-53/+1
Type:refactor Change-Id: I37dbc8b55827d66c2578d6ab8b86ed7e18198aa6 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-08-02tcp: add more connection statsFlorin Coras1-0/+24
Type:feature Change-Id: If02884d0f1f26bfe31ec609ea9611cb27b699868 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-26session tcp: handle rxt and acks as custom eventsFlorin Coras1-10/+1
Type: feature Control ack generation and retransmissions with session layer scheduler. Change-Id: Iacdf9f84ab81f44851980aa45a83e75f29be2b7b Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-25session: add transport deleted stateFlorin Coras1-1/+0
Type: fix Distinguish between closed and deleted states to avoid deleting the session prior to the transport connection. Change-Id: Ia285ce94b26a70773f8c0ce9d2c73095d3e2a337 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-23tcp: generate closed notifications whenever tcp closesFlorin Coras1-1/+4
Type: fix This gives the session layer a chance to to cleanup events. Change-Id: I7499e94acf06340e2b19a1d91a4c61a63cd66c52 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-07-12session: add thread index to all formattersAloys Augustin1-0/+2
Add a thread_index argument to half-open and listener session formatters because QUIC can have listeners and half-open sessions in any thread. Change-Id: I1de60e35ece4c68ba8cfdd6b63f211bc620d687b Signed-off-by: Aloys Augustin <aloaugus@cisco.com> Type: feature
2019-06-27tcp: Setup initial CWND as configuredVladimir Kropylev1-0/+4
Type: feature Change-Id: I7f476f4f81994c9c6cc2e8091de08adff4bcbc77 Signed-off-by: Vladimir Kropylev <vladimir.kropylev@enea.com>
2019-06-27session: Add transport vft protocol optionsNathan Skrzypczak1-2/+4
Type: refactor Change-Id: I4e0afc206e4871596c2ed8a6ca00914a379f1526 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2019-06-25tcp: delivery rate estimatorFlorin Coras1-0/+6
Type: feature First cut implementation with limited testing. The feature is not enabled by default and the expectation is that cc algorithms will enable it on demand. Change-Id: I92b70cb4dabcff0e9ccd1d725952c4880af394da Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-06-11tcp: allow registration of new cc algo typesFlorin Coras1-1/+9
Type: feature Change-Id: I83e21b508a19df1beb207d961c8f2b52347deca0 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-06-07tcp: add cc cleanup functionFlorin Coras1-25/+33
Type: feature Change-Id: I54521078cf96e459d041c86297c6ca80045bf0a3 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-06-03ARP: add feature arcNeale Ranns1-8/+6
- arp-input, registered with the ethernet protocol dispatcher, performs basic checks and starts the arc - arp-reply; first feature on the arc replies to requests and learns from responses (no functional change) - arp-proxy; checks against the proxy DB arp-reply and arp-proxy are enabled when the interface is appropriately configured. Change-Id: I7d1bbabdb8c8b8187cac75e663daa4a5a7ce382a Signed-off-by: Neale Ranns <nranns@cisco.com>
2019-04-05tcp: do not delete session on establish popFlorin Coras1-14/+16
Also: - force reset if wait close pops in fin-wait-1 with unsent data - adds more event logging. Change-Id: I4ddada046214fa71e17514cdec57b3026f84a283 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-04tcp: shorten wait in fin-wait-1 with fin rcvdFlorin Coras1-1/+2
Change-Id: Ifddc32ab3da0e691ac3df74ff26e19f6fa00fef7 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-02tcp: improve rcv process ack processingFlorin Coras1-0/+9
- Avoid doing cc in closing states. - Rest connections closed with unread data Change-Id: I97d46b0459f03ea5439eeb0f233b6c17d3e06dfd Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-27tcp: add cc algo lookup tableFlorin Coras1-7/+14
Change-Id: Ie7be0136c182cdc35193e47dd3249153c2f8d65e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-23tcp: make default mtu configurableFlorin Coras1-1/+5
Change-Id: I56d8d8d67d5590e24c1ddb54b0c63a2cb03798e1 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-22tcp: improve handling of snd_nxtFlorin Coras1-2/+2
- avoid changing snd_nxt when doing fast retransmits - use snd_una_max only to keep track of the max seq number sent - simplify future ack testing Change-Id: I3580ad3aefe30128486c3375d0ac3f3f62c04c5e Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-12tcp: print congestion control algorithm in cliFlorin Coras1-11/+12
And shuffle some of the other connection variables. Change-Id: Ib5361d0a45537a3bd2421b8e4145ea0f0e525d91 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-08session/tcp/vcl: fixes and optimizationsFlorin Coras1-7/+0
Change-Id: Idc7dfe743399dd8dee0f6b3ec83f194f3fca580b Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-03-02session: cleanup/rename functionsFlorin Coras1-2/+2
- remove unused functions - rename old "stream" functions Change-Id: Icbb03daa9f9f1c58b5be5c38aa8a9cbcf9159b47 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-22tcp: keep snd sack block free listFlorin Coras1-0/+3
Instead of constantly reallocating the new sack block list, keep the old one as a reusable free list. Change-Id: Iad79a72204f97b96352c1c6eea66c2839a35cfe6 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-22tcp: send enough dupacks to cover all sack holesFlorin Coras1-1/+1
Make sure we send enough dupacks to cover all the holes created in the last frame received. Also make sure we send all the blocks, not just the first. Change-Id: I9597a34ac14473d1cc3ad07d65bc37043e3d0582 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-18tcp: harden for high scale scenariosFlorin Coras1-3/+5
- Better handle buffer starvation scenarios - Handle case when both peers enter recovery due to packet loss. - Fix passive open establish cleanup Change-Id: I2f28baa2ff0383bb8f5f6d2452b49aa38ce69bce Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-09buffers: fix typoDamjan Marion1-1/+1
Change-Id: I4e836244409c98739a13092ee252542a2c5fe259 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-02-06buffers: make buffer data size configurable from startup configDamjan Marion1-1/+1
Example: buffers { default data-size 1536 } Change-Id: I5b4436850ca18025c9fdcfc7ed648c2c2732d660 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-02-06transport: cleanupFlorin Coras1-3/+3
- move transport specific types to transport_types - add transport wrapper functions for interaction with transport protocol vfts Change-Id: I93f70d884585fc2f41c4a605e310c80e8a8972f2 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-02-02session: improve show session cliFlorin Coras1-1/+5
Change-Id: If30cea80058752cedcc6ecc38e90bef8732c83d3 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-04tcp: fix reset in syn-sentFlorin Coras1-2/+1
Change-Id: I6732adc06fbb3d4b427e671ddcfe6eabc08d4a1b Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-03tcp: better randomize issFlorin Coras1-4/+32
Change-Id: I3638221e59024d6b7d82499d57e25b8e609f73cb Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-01-01buffers: remove unused codeDamjan Marion1-2/+1
Change-Id: If2bbfbc52994f5de0879763e0b7a7864498debb6 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-01-01vcl/ldp: add write msg function and fine tuningFlorin Coras1-3/+5
Allows app to push data. Additionally, ensure reset/close replies are not sent unless vcl closes the session. Change-Id: Icbbf933cf57b55cfbcc7b802af0f83919a066f65 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-28session: free session after transport and app confirmFlorin Coras1-8/+8
In addition to that, a bit of refactoring. Change-Id: Iea1eabc2167bcdef185ec53bc09bae087c5398e6 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-26tcp: separate active and passive establish timersFlorin Coras1-36/+44
Change-Id: Ia2241e963cf45765d8d17c65eea781edbf74d4f9 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-24tcp: compute seq_end in tcp_inputFlorin Coras1-9/+10
syn/fin are no longer added to seq_end so they must be considered individually in each state. Change-Id: I5e3047194101c4fca2db9f9ad29a4a6468c397ab Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-22tcp: improve waitclose in closing statesFlorin Coras1-16/+44
Change-Id: I90056176194cb2a144d49a3cb283653d8d30f051 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-21tcp: fix fin_wait_1 condition to send finFlorin Coras1-0/+3
Also add the closed-waiting session state wherein the session still allows the transport to send oustanding data. Change-Id: Ic47807379906ef2010934381ff0b9e53c7e631d8 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-20tcp: fix syn-sent resetFlorin Coras1-7/+9
Change-Id: I4a811672b27c70bf0e9652c175c7f4168ec40ed7 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-19tcp: fix fin in syn-rcvdFlorin Coras1-6/+6
Change-Id: Iba7c08c9edcf76ea24d00d5ea9e0586e9f94df4e Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-19tcp/session: notify transport of close when tx fifo is not emptyFlorin Coras1-9/+14
Disconnect transport even if tx fifo is not empty and have transport deal with the problem. In case of tcp, add timer to fin_wait_1. If it expires and we're still in established state, cleanup but only after waiting for session tx events to cleanup. Change-Id: I45759a3c43dd096bb2c03daf5372416c30678d62 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-17tcp: fix handling of broken syn optionsFlorin Coras1-1/+10
Change-Id: Ia8b2a077ba4897ddd15cf33221b191cd7a3f1d33 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-17vcl/session: handle reset/disconnect before app acceptFlorin Coras1-2/+4
Also further improves reset handling. Change-Id: I6e517632f700f181761726b965134e0c217eb06d Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-13session/tcp: support tx flush markFlorin Coras1-0/+11
For tcp this means that the last enqueued data goes out with a psh bit set. Change-Id: I29d357ecae6f02e748b59a7b799150ec73d14ba2 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-12-05session/tcp: postpone cleanup on resetFlorin Coras1-1/+7
Change-Id: I45fd7538853f84c6c8bf804cc20acbc9601db3ba Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-11-14Remove c-11 memcpy checks from perf-critical codeDave Barach1-7/+7
Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1 Signed-off-by: Dave Barach <dave@barachs.net>