Release 2.20.0

- [FEATURE] QUIC and HTTP/3 Internet Draft 30 support.
- [FEATURE] Unreliable Datagram Extension support.
- [FEATURE] Adaptive congestion controller.
- [BUGFIX] Do not send MAX_STREAM_DATA frames on crypto streams.
- [BUGFIX] Fail with CRYPTO_BUFFER_EXCEEDED when too much CRYPTO
  data comes in.
- [BUFFIX] Spin bit is now strictly per path; value is reset on
  DCID change.
- [BUGFIX] Check that max value of max_streams_uni and
  max_streams_bidi TPs is 2^60.
- [BUGFIX] Close IETF mini conn immediately if crypto session
  cannot be initialized.
- Deprecate ID-28 (no browser uses it): it's no longer in the
  default versions list.
- New programs duck_server and duck_client that implement the
  experimental siduck-00 protocol.  They quack!
- IETF crypto streams: don't limit ourselves from sending.
- Command-line programs: turn off QL loss bits if -G is used, as
  Wireshark cannot decrypt QUIC packets when this extension is used.
- Turn all h3 framing unit tests back on.
- Fix malo initialization when compiled in no-pool mode.

tests/test_h3_framing.c

@@ -45,6 +45,7 @@
 #include "lsquic_bw_sampler.h"
 #include "lsquic_minmax.h"
 #include "lsquic_bbr.h"
+#include "lsquic_adaptive_cc.h"
 #include "lsquic_send_ctl.h"
 #include "lsquic_ver_neg.h"
 #include "lsquic_packet_out.h"
@@ -363,7 +364,8 @@ init_test_objs (struct test_objs *tobjs, unsigned initial_conn_window,
     tobjs->eng_pub.enp_hsi_if = &tobjs->hsi_if;
     lsquic_send_ctl_init(&tobjs->send_ctl, &tobjs->alset, &tobjs->eng_pub,
         &tobjs->ver_neg, &tobjs->conn_pub, 0);
-    tobjs->send_ctl.sc_cong_u.cubic.cu_cwnd = ~0ull;
+    tobjs->send_ctl.sc_adaptive_cc.acc_cubic.cu_cwnd = ~0ull;
+    tobjs->send_ctl.sc_cong_ctl = &tobjs->send_ctl.sc_adaptive_cc.acc_cubic;
     tobjs->stream_if = &stream_if;
     tobjs->stream_if_ctx = &test_ctx;
     tobjs->ctor_flags = stream_ctor_flags;
@@ -1626,7 +1628,6 @@ main (int argc, char **argv)
     else
     {
         main_test_pwritev();
-        return 0;
         main_test_hq_framing();
         for (n_packets = 1; n_packets <= 2; ++n_packets)
             for (extra_sz = 0; extra_sz <= 2; ++extra_sz)

tests/test_send_headers.c

@@ -46,6 +46,7 @@
 #include "lsquic_bw_sampler.h"
 #include "lsquic_minmax.h"
 #include "lsquic_bbr.h"
+#include "lsquic_adaptive_cc.h"
 #include "lsquic_send_ctl.h"
 #include "lsquic_ver_neg.h"
 #include "lsquic_packet_out.h"

tests/test_stream.c

@@ -40,6 +40,7 @@
 #include "lsquic_bw_sampler.h"
 #include "lsquic_minmax.h"
 #include "lsquic_bbr.h"
+#include "lsquic_adaptive_cc.h"
 #include "lsquic_send_ctl.h"
 #include "lsquic_ver_neg.h"
 #include "lsquic_packet_out.h"
@@ -3005,7 +3006,7 @@ test_packetization (int schedule_stream_packets_immediately, int dispatch_once,
     }
     else
     {
-        assert(0x4000 == nw);
+        assert(sizeof(buf) == nw);
         assert(0 == memcmp(buf, buf_out, nw));
     }