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2018-07-19session: coverity warningsFlorin Coras1-8/+10
Change-Id: I4505954c737e8c6a3d4177c6833f2b12099e6dd4 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-07-17session: send ctrl msg over mqFlorin Coras8-62/+519
Change-Id: I242056bc46ddb671064665916b2687860292dcb2 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-07-17session: use msg queue for eventsFlorin Coras9-179/+424
Change-Id: I3c58367eec2243fe19b75be78a175c5261863e9e Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-07-17session: make sure segment sizes are page alignedFlorin Coras1-1/+3
Change-Id: Ibbba75d069ca1bbf9e5a1b8bd2f405d32021c656 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-07-11session: push tx notifications only if neededFlorin Coras1-1/+6
VPP-1340 Change-Id: Ia3f2fc054dbfb2ba912a768c70466e7042024e32 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-07-08session/svm: fix coverity warningsFlorin Coras1-1/+5
Change-Id: Ic5daed1f6c23d9561a04e235dcbf257f190d066a Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-07-03tcp: update snd_una_max for retranmsitsFlorin Coras1-3/+4
Change-Id: I0573d0aff39581bba96e610228a10ae923a8ca06 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-30tcp: fix single loop prefetchFlorin Coras1-1/+7
Also add single loop prefetch in session tx Change-Id: Ib2725a2552fcc1a65050d7a2eb10491a7b34db62 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-30session: send tx notification to appFlorin Coras3-188/+229
Does some session node cleanup as well Change-Id: Ifd52b07b28ba4dec1f6f729476decc76eb963837 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-28vcl: move binary api and cfg to separate filesFlorin Coras3-4/+0
Change-Id: Ib88d703bb7d4b170059960b0688352c90c5fcc39 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-28vcl: refactor vcl sessionFlorin Coras1-12/+17
Change-Id: Idcba72fd84128547718dd32858e8c728925a6b1d Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-26tcp/session: tx optimizationsFlorin Coras1-1/+0
- cache and reuse tcp options and rcv_wnd for session layer tx bursts - avoid reading/setting total_length_not_including_first_buffer. It's part of a buffer's second cache line so it comes at a "cost". Change-Id: Id18219c2f7e07cf4c63ee74f9cdd9e5918904036 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-22session: improve session lookup speedsFlorin Coras1-57/+24
It would seem that this avoids using the stack for computing the subsequent crc32 by storing the 2 x u64 ip4 5-tuple key into two registers. Probably the cast to the "convenience" data structure "masks" the fact that the key is 16B. Probably ... :-) "sh run" on an ip4 tcp sender reports that the number of clocks spent in tcp_input, where a session lookup is performed, drops ~25% (from ~100 clocks/packet to ~75 clocks/packet) Change-Id: I50d647115ac72f8407bff7e3b73328ba42f0ddb5 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-21tcp: move tracing out of established loopFlorin Coras1-1/+1
Change-Id: I4a7e4f616ed4a4df82be3112ac4702f7e4e2025c Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-19tcp: optimize tcp outputFlorin Coras2-7/+34
Change-Id: Idf17a0633a1618b12c22b1119e40c2e9d3192df9 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-11tcp: cleanup connection/session fixesFlorin Coras3-23/+34
- Cleanup session state after last ack and avoid using a cleanup timer. - Change session cleanup to free the session as opposed to waiting for delete notify. - When in close-wait, postpone sending the fin on close until all outstanding data has been sent. - Don't flush rx fifo unless in closed state Change-Id: Ic2a4f0d5568b65c83f4b55b6c469a7b24b947f39 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-11udp: fix for multiple workers and add testFlorin Coras3-1/+9
Since the main thread is not used for session polling anymore, when vpp is started with multiple wokers, allocate connections on the first. Also add a simple udp make test. Change-Id: Id869f5d89e0fced51048f0384fa86a5022258b7c Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-09session: cleanup queue node tracingFlorin Coras1-67/+67
Change-Id: Ib8e332174d96bf9cfa4bbaaa5b8d8bc9958424b1 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-06-01session: improve disconnect handlingFlorin Coras3-11/+37
If the caller is the session owning thread or the main thread with a worker barrier sync (cli/api) add an event to the pending disconnects vector in the session node and entirely avoid using the event queue. Useful for bursts of disconnects (like an app detach). If disconnects come from a processes, be willing to retry enqueueing the disconnect to the event queue multiple times. Change-Id: Ieece1f1091b713f94c41c703b6e805bc8498816a Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-05-30session: fix v6 unbinds that use uri apiFlorin Coras1-2/+6
This api only supports default tables but v6 and v4 default tables are different. Change-Id: I7fe39251af99082278e84d7411511bdeca34e609 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-05-30session: fix session table retrievalFlorin Coras1-2/+2
Change-Id: If37d644a26132c42a04927f612eec5e891066451 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-05-26tcp: loss recovery improvements/fixesFlorin Coras2-4/+7
- fix newreno cwnd computation - reset snd_una_max on entering recovery - accept acks beyond snd_nxt but less than snd_congestion when in recovery - avoid entering fast recovery multiple times when using sacks - avoid as much as possible sending small segments when doing fast retransmit - more event logging Change-Id: I19dd151d7704e39d4eae06de3a26f5e124875366 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-05-23tcp: cc improvements and fixesFlorin Coras1-2/+9
Change-Id: I6615bb612bcc3f795b5f822ea55209bb30ef35b5 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-05-18session: add session process nodeFlorin Coras3-0/+81
Add a session process node that handles main thread tx and retransmit in order to avoid having a polling input node. Change-Id: I3357e987c023a84b533b32793e37ab4204420f64 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-05-13session: improve app verbose format functionFlorin Coras1-5/+6
Change-Id: Idae4ecb60351f2e74bad2f2a33c073de8412fcb0 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-05-13session: alloc one frame per output node dispatchFlorin Coras5-54/+94
Change-Id: I1f7877af61f3726cfb7b93ce7893f6df23e866a6 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-05-09session: cleanup session tx functionFlorin Coras4-320/+394
- rework the function to declutter and avoid building more than one tx frame - add dual loop although benefits in my tests seem to be minimal - improve tcp/udp echo external apps. They have slightly better throughput than internal echo apps. - udp bugfixes Change-Id: Iea4a245b1b1bb407a7f403dedcce2664a49f774b Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-05-04Harmonize vec/pool_get_aligned object sizes and alignment requestsDave Barach1-0/+2
Object sizes must evenly divide alignment requests, or vice versa. Otherwise, only the first object will be aligned as requested. Three choices: add CLIB_CACHE_LINE_ALIGN_MARK(align_me) at the end of structures, manually pad to an even divisor or multiple of the alignment request, or use plain vectors/pools. static assert for enforcement. Change-Id: I41aa6ff1a58267301d32aaf4b9cd24678ac1c147 Signed-off-by: Dave Barach <dbarach@cisco.com>
2018-04-30tcp/session: debug improvements/fixesFlorin Coras3-15/+11
Change-Id: I906e58b4f9827a79a6ab673f8fa2e03036c69820 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-04-18session: coverity warningsFlorin Coras1-2/+2
Change-Id: I53bb1e289ba16ee6d9aed7285b18437c996077a4 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-04-18udp/session: refactor to support dgram modeFlorin Coras12-107/+474
- adds session layer support for datagram based protocols - updates udp to work in pure connectionless and datagram mode. The existing connected mode is now 'accessible' for apps as a dummy UDPC, as in, connected udp, protocol. - updates udp_echo, echo client, echo server code to work in datagram mode. Change-Id: I2960c0d2d246cb166005f545794ec31fe0d546dd Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-04-16session: use generic session pool for listenersFlorin Coras7-95/+37
Change-Id: I825f3822910a6ee368b9004e39ca16ac6833e30c Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-29tcp: fix fib index buffer taggingFlorin Coras1-1/+1
Change-Id: I373cc252df3621d44879b8eca70aed17d7752a2a Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-25session: fix local session disconnectsFlorin Coras3-22/+58
Select the right segment manager for local sessions established via global table. Change-Id: I88ad4bf70d0cae160a0c744950098a954dfbc911 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-23tcp/session: sprinkle prefetchesFlorin Coras1-16/+20
Change-Id: Idef3c665580c13d72e99f43d16b8b13cc6ab746f Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-23session: allow builtin apps to register namesFlorin Coras5-18/+70
Change-Id: I4b428e170436671b329657283cf7653befc85c9f Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-19session: fix coverity warningsFlorin Coras1-0/+10
Change-Id: I022dc40476ea9c30957b12bf1bd0629c6eb41cda Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-16session: allow local host bindsFlorin Coras1-4/+4
Change-Id: I906bbc5bc75279f210093fb9276db9e35ee44c1f Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-15Update session local address is_ip4 on bind when not globalKeith Burns (alagalah)1-0/+1
Change-Id: I73ddca5a86e83c9f547778828bb49d2bd4675eaf Signed-off-by: Keith Burns (alagalah) <alagalah@gmail.com>
2018-03-15tls: add openssl engineFlorin Coras3-0/+7
Change-Id: I6c215858d2c9c620787632b570950b15274c0df2 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-07tls: enforce certificate verificationFlorin Coras7-82/+122
- add option to use test certificate in the ca chain - add hostname to extended session endpoint fields and connect api parameters. If hostname is present, certificate validation is enforced. - use /etc/ssl/certs/ca-certificates.crt to bootstrap CA cert. A different path can be provided via startup config Change-Id: I046f9c6ff3ae6a9c2d71220cb62eca8f7b10e5fb Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-05tls: add stop listen handlerFlorin Coras1-2/+14
Change-Id: I233d02a669b6a0504cd54590c6c8e4fefadc4713 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-02session: first approximation implementation of tlsFlorin Coras15-152/+525
It consists of two main parts. First, add an application transport type whereby applications can offer transport to other applications. For instance, a tls app can offer transport services to other applications. And second, a tls transport app that leverages the mbedtls library for tls protocol implementation. Change-Id: I616996c6e6539a9e2368fab8a1ac874d7c5d9838 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-03-01session: zero out ips in local endpoint lookup only if localFlorin Coras1-29/+61
Change-Id: I3425b1533b3d31210166e7b3798685464ad1c489 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-02-15session: fix fifo allocation for empty connect seg-managersFlorin Coras1-1/+0
Change-Id: Ibc5b1149f3fbbe3dfe1f069ab69bfed7de660582 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-02-15session: avoid session handle conflict with vclFlorin Coras6-13/+63
Change-Id: I7f5a3b8d92ef07d60315bab6e560eba49ea07249 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-02-14session: support local sessions and deprecate redirectsFlorin Coras15-429/+1161
Memfd backed shared memory segments can only be negotiated over sockets. For such scenarios, the existing redirect mechanism that establishes cut-through sessions does not work anymore as the two peer application do not share such a socket. This patch adds support for local sessions, as opposed to sessions backed by a transport connection, in a way that is almost transparent to the two applications by reusing the existing binary api messages. Moreover, all segment allocations are now entirely done through the segment manager valloc, so segment overlaps due to independent allocations previously required for redirects are completely avoided. The one notable characteristic of local sessions (cut-through from app perspective) notification messages is that they carry pointers to two event queues, one for each app peer, instead of one. For transport-backed sessions one of the queues can be inferred but for local session they cannot. Change-Id: Ia443fb63e2d9d8e43490275062a708f039038175 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-02-05session: segment manager refactorFlorin Coras9-446/+596
- use valloc as a 'central' segment baseva manager - use per segment manager segment pools and use rwlocks to guard them - add session test that exercises segment creation - embed segment manager properties into application since they're shared - fix rw locks Change-Id: I761164c147275d9e8a926f1eda395e090d231f9a Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-01-27session: use clib rwlocks instead of custom implementationFlorin Coras2-27/+9
Change-Id: I68933d709ce9cc686ba06466e136434b663920ef Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-01-27Fix session/tcp coverity warningsFlorin Coras2-2/+11
Change-Id: I5c404eacb4a6c1e16485a6656168d9171ff49a8b Signed-off-by: Florin Coras <fcoras@cisco.com>