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Change-Id: I7fb5402d4a530b5f2ffd9bb5787632099f4b4189
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ied476c417c8ba5b4d7c615125c36eecd9ca64fbc
Signed-off-by: Florin Coras <fcoras@cisco.com>
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* u32/u64/uword mismatches
* pointer-to-int fixes
* printf formatting issues
* issues with incorrect "ULL" and related suffixes
* structure alignment and padding issues
Change-Id: I70b989007758755fe8211c074f651150680f60b4
Signed-off-by: David Johnson <davijoh3@cisco.com>
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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>
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In addition to that, a bit of refactoring.
Change-Id: Iea1eabc2167bcdef185ec53bc09bae087c5398e6
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I90056176194cb2a144d49a3cb283653d8d30f051
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- use http sessions to track communication with peer (as opposed to
using the raw sessions)
- for static server send ok message prior to sending data
- static server can now handle GET requests spread over multiple
packets. Good for testing http/tcp implementation.
Change-Id: I767a790de9a42e7087db5ce8eefd8efaf598c695
Signed-off-by: Florin Coras <fcoras@cisco.com>
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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>
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Change-Id: Ic35bbf55851087d70bfacc1eab4dea4285f98c86
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Also cleanup session table when transport closes and app didn't reply to
the close notification.
Change-Id: Ie3d518e3afff73437561561b46dbf695c24632ad
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Also further improves reset handling.
Change-Id: I6e517632f700f181761726b965134e0c217eb06d
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I45fd7538853f84c6c8bf804cc20acbc9601db3ba
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Allows sending of unsent data in fast recovery and consolidates logic in
tcp, instead of splitting it between tcp fast retransmit and tcp output
path called by the session layer.
Change-Id: I9b12cdf2aa2ac50b9f25e46856fed037163501fe
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Also reset pacer on tcp retransmit timeout
Change-Id: I5a9edee4c00d1d169248d79587a9b10437c2bd87
Signed-off-by: Florin Coras <fcoras@cisco.com>
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If sessions cannot be handled during the current dispatch loop
iteration, ensure that they are first to be handled in the next.
Change-Id: Ifc6215900f8cfd530d4886b58641189f0ccf9bb7
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I66ca0ddea872948507d078e405eb90f9f3a0e897
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ie4c5cfc4c97acb321a46b4df589dc44de1b616ba
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Adds tx pacing infrastructure for transport protocols that want to use
it. Particularly useful for connections with non-negligible rtt and
constrained network throughput as it avoids large tx bursts that lead to
local interface tx or network drops.
By default the pacer is disabled. To enabled it for tcp, add tx-pacing
to tcp's startup conf. We are still slightly inefficient in the handling
of incoming packets in established state so the pacer slightly affect
maximum throughput in low lacency scenarios.
Change-Id: Id445b2ffcd64cce015f75b773f7d722faa0f7ca9
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I0bc4062c1fd3202ee201acb36a2bb14fc6ee1543
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- fix delete of connection in syn-received
- fix delete of half-open connection
Change-Id: I72ff4b60406a2762d998328c52f41adea40d2c1b
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- ensure session enqueue epoch does not wrap between two enqueues
- use 3 states for echo clients app, to distinguish between starting and
closing phases
- force tcp fin retransmit if out of buffers while sending a fin
Change-Id: I6f2cab46affd1148aba2a33fb6d58bcc54f32805
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I750db7617ff9fd36647743094e0fa855e7dada86
Signed-off-by: Florin Coras <fcoras@cisco.com>
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TLS can enqueue events to itself when app session queue cannot be
entirely drained. If a pending disconnect is handled before any such
event, session layer may try to dequeue data on deallocated sessions.
Change-Id: I5bfc4d53ce95bc16b6a01e1b0e644aafa1ca311b
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I6201a044e70ab6a58db8212960c57edc77c41f96
Signed-off-by: Florin Coras <fcoras@cisco.com>
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If sessions are marked as blocking, events for other sessions received
while waiting for the blocking sessions, are added to a pending list and
processed later.
Change-Id: Ia6c71006b1c2bcb78af708390da0cd436af397cc
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Also fixes vcl client/server stats and closing procedure.
Change-Id: I7d5a274ea0a3c8ea13062bf61bf402248dfe1a19
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I72d400401a308012b43513179870823f6f921e44
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Allows app workers to listen on the same session endpoint. Incoming
connects are spread across the workers in a round-robin fashion
Change-Id: Ib5f5817230d9abc6127a85cdbdcad70d980c0f7f
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Refactor session layer to support multiple workers per application.
Change-Id: Ie67354688d396449d14bbbb8c56050206e307cd8
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I89e8052f2d2c36dd3de5255c4ee570722dc58227
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- support eventfd based mq signaling. Based on configuration, vcl
epoll/select can use either condvars or epoll on mq eventfds.
- add vcl support for memfd segments
- vpp explicitly registers cut-through segments with apps/vcl
- if using eventfd, make ldp allow one call to libc_epoll_create. Needed
for the message queue epfd
- update svm_queue_t to allow blocking calls with eventfd signaling.
Change-Id: I064151ac370bbe29bb16c968bf4e3659c8286bea
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Have vcl poll and wait on the event message queues as opposed to
constantly polling the session fifos. This also adds event signaling to
cut through sessions.
On the downside, because we can't wait on multiple condvars, i.e., when
we have multiple message queues because of cut-through registrations, we
do timed waits.
Change-Id: I29ade95dba449659fe46008bb1af502276a7c5fd
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I242056bc46ddb671064665916b2687860292dcb2
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I3c58367eec2243fe19b75be78a175c5261863e9e
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: Ic5daed1f6c23d9561a04e235dcbf257f190d066a
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I0573d0aff39581bba96e610228a10ae923a8ca06
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Does some session node cleanup as well
Change-Id: Ifd52b07b28ba4dec1f6f729476decc76eb963837
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- 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>
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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>
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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>
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- 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>
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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>
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Change-Id: I1f7877af61f3726cfb7b93ce7893f6df23e866a6
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- 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>
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Change-Id: I906e58b4f9827a79a6ab673f8fa2e03036c69820
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- 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>
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Change-Id: I825f3822910a6ee368b9004e39ca16ac6833e30c
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- 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>
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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>
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