Commit Graph

29 Commits

Author SHA1 Message Date
goldsimon
4cec20230e Ensure that unit tests leave the stack in a clean state 2017-08-03 22:28:50 +02:00
Joel Cunningham
c03fef9a3c bug #50837: add zero-window probe timeout
This commit adds a timeout to the zero-window probing (persist timer)
mechanism. LwIP has not historically had a timeout for the persist
timer, leading to unbounded blocking if connection drops during the
zero-window condition

This commit also adds two units test, one to check the RTO timeout
and a second to check the zero-window probe timeout
2017-05-09 09:01:03 -05:00
Joel Cunningham
de90d03e48 tcp: task #14128 - Appropriate Byte Counting support
This commit adds TCP Appropriate Byte Counting (ABC) support based on
RFC 3465

ABC replaces the previous congestion window growth mechanism and has been
configured with limit of 2 SMSS.  See task #14128 for discussion on
defaults, but the goal is to mitigate the performance impact of delayed
ACKs on congestion window growth

This commit also introduces a mechanism to track when the stack is
undergoing a period following an RTO where data is being retransmitted.

Lastly, this adds a unit test to verify RTO period tracking and some
basic ABC cwnd checking
2017-04-20 15:59:24 -05:00
Joel Cunningham
6fe66771cb test_tcp: de-duplicate test IP addresses, netmask, and ports
This creates a single version of test IP addresses, netmasks, and ports.
All tests were using the same values, but duplicated in each test

This also adds const to some functions so we can use a const version
of addresses
2017-03-31 12:01:43 -05:00
Joel Cunningham
648b2b6f2b test_tcp: remove unnecessary memsets
test_tcp_init_netif() memsets both netif and txcounters, so no need to manually do it
2017-03-31 11:59:12 -05:00
Joel Cunningham
34c9e30225 test_tcp: de-duplicate seqno checking defines
This commit moves common defines and senqo array so they can be
re-used in mulptiple places for sequence number checking rather
than duplicated

Currently they are used in two places, but I'm anticipating needing
them in future TCP unit tests
2017-03-31 11:57:33 -05:00
goldsimon
a42d1678eb tcp unit tests: don't break later tests relying on loopif 2017-03-17 08:56:03 +01:00
Joel Cunningham
8bf402fd67 Fix unit test with assumed congestion avoidance
test_tcp_fast_rexmit_wraparound correctness relied on the congestion
window being in congestion avoidance so that only a single TCP_MSS
segment is sent upon ACKing the first segment.

It's not known whether the test was relying tcp_alloc() to set ssthresh
to 0 and thus start in congestion avoidance or if the test was working by
accident until changes in b90a54f989

This fixes the test by enforcing the requirement of starting in
congestion avoidance

Signed-off-by: goldsimon <goldsimon@gmx.de>
2017-03-10 08:12:17 +01:00
goldsimon
e9e9ec23b8 tcp unit tests: fixed that tcp_teardown() could lead to accessing a netif pointer that is not valid any more (netif added in test function stored on stack) 2017-03-09 20:23:16 +01:00
Dirk Ziegelmeier
1884c7e83f Fix TCP unit tests after changes from "Add hook for TCP Initial Sequence Number generation" commit
(pcb->lastack and friends are not initialized during allocation any more, but by connect() / bind() call)
2016-12-31 11:46:27 +01:00
Dirk Ziegelmeier
7f319f5ec5 Fix compile of test_tcp.c unit test after introduction of tcp_next_iss hook 2016-12-18 21:46:49 +01:00
Dirk Ziegelmeier
6af213787a Fix clang address sanitizer errors in unit tests (buffers too small) 2016-08-07 20:21:27 +02:00
goldsimon
288fc8ede3 fixed unit tests after changing memp stats 2016-07-08 10:20:04 +02:00
Dirk Ziegelmeier
8dc77ef558 doxygen updates - include IPv6 in documentation. Exclude include/netif/ppp/polarssl.
Convert TODO -> @todo
2016-06-22 20:18:23 +02:00
Henrik Persson
b9a2ee8aaa [PATCH] Drop instead of ASSERT in tcp_input header parsing
Since allowing input validation to trip the ASSERT handler is bad,
let's just drop the packets instead if validation fails.

Signed-off-by: sg <goldsimon@gmx.de>
2016-06-13 20:08:43 +02:00
Sylvain Rochet
37bb0b89f0 all: trivial include changes related to the new "lwip/priv/" include directory 2015-10-10 22:46:47 +02:00
goldsimon
cf180b651b fixed unit tests after changing ip_addr_t 2015-04-10 08:51:06 +02:00
Simon Goldschmidt
a80c4d147c Unit test patch by Erik Ekman: use macro to store correct testcase name 2014-02-12 21:52:21 +01:00
goldsimon
5db6bb02d6 TCP unit tests: fix that ip.rterr stats are increased (some unit tests had no netif set) 2012-03-25 17:12:02 +02:00
goldsimon
86766f4e20 Minor: cosmetic source code layout changes 2012-02-22 21:35:04 +01:00
Simon Goldschmidt
0333e81616 fixed bug #34517 (persist timer is started although no zero window is received) by starting the persist timer when a zero window is received, not when we have more data queued for sending than fits into the window 2011-10-13 21:18:16 +02:00
Simon Goldschmidt
ab51f3bec0 added unit test cases for seqno wraparound on fast-rexmit and rto-rexmit (unsent/unacked lists must be correctly sorted) 2011-10-11 21:43:27 +02:00
Simon Goldschmidt
ce98df59f1 Added unit test case for persist timer / zero window probes 2011-10-10 21:06:50 +02:00
Simon Goldschmidt
bcfe3dacc6 fixed unit tests (one TCP test failed, removed comma at the end of array initializers) 2011-09-26 22:09:27 +02:00
goldsimon
33a587d97e Added a test for fast-rexmit 2011-05-14 15:26:43 +00:00
goldsimon
791505ab6e Fixed tcp unit tests after introducing ip_addr_p_t and letting tcp_input check for broadcasts by using current_iphdr_dest. 2011-03-30 18:50:00 +00:00
goldsimon
bcd4b76d31 Moved stack-internal parts of tcp.h to tcp_impl.h, tcp.h now only contains the actual application programmer's API 2010-02-21 11:35:21 +00:00
goldsimon
3f8e6c423c Fixed unit tests after changing struct ip_addr to ip_addr_t 2010-02-09 16:40:52 +00:00
goldsimon
902ad897b8 Initial check-in of some unit tests 2009-11-27 08:03:53 +00:00