QUIC CC: Move dummy method to test code

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20423)

2 files changed, 130 insertions, 3 deletions

diff --git a/test/build.info b/test/build.info
index b3588040c2..4de1c19d4d 100644
--- a/test/build.info
+++ b/test/build.info
@@ -324,11 +324,11 @@ IF[{- !$disabled{tests} -}]
   INCLUDE[quic_txpim_test]=../include ../apps/include
   DEPEND[quic_txpim_test]=../libcrypto.a ../libssl.a libtestutil.a
 
-  SOURCE[quic_fifd_test]=quic_fifd_test.c
+  SOURCE[quic_fifd_test]=quic_fifd_test.c cc_dummy.c
   INCLUDE[quic_fifd_test]=../include ../apps/include
   DEPEND[quic_fifd_test]=../libcrypto.a ../libssl.a libtestutil.a
 
-  SOURCE[quic_txp_test]=quic_txp_test.c
+  SOURCE[quic_txp_test]=quic_txp_test.c cc_dummy.c
   INCLUDE[quic_txp_test]=../include ../apps/include
   DEPEND[quic_txp_test]=../libcrypto.a ../libssl.a libtestutil.a
 
@@ -1091,7 +1091,7 @@ ENDIF
     PROGRAMS{noinst}=quic_client_test quic_cc_test
   ENDIF
 
-  SOURCE[quic_ackm_test]=quic_ackm_test.c
+  SOURCE[quic_ackm_test]=quic_ackm_test.c cc_dummy.c
   INCLUDE[quic_ackm_test]=../include ../apps/include
   DEPEND[quic_ackm_test]=../libcrypto.a ../libssl.a libtestutil.a
 
diff --git a/test/cc_dummy.c b/test/cc_dummy.c
new file mode 100644
index 0000000000..af0d548379
--- /dev/null
+++ b/test/cc_dummy.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include "internal/quic_cc.h"
+#include "internal/quic_types.h"
+
+typedef struct ossl_cc_dummy_st {
+    size_t max_dgram_len;
+} OSSL_CC_DUMMY;
+
+static OSSL_CC_DATA *dummy_new(OSSL_TIME (*now_cb)(void *arg),
+                               void *now_cb_arg)
+{
+    OSSL_CC_DUMMY *d = OPENSSL_zalloc(sizeof(*d));
+
+    if (d == NULL)
+        return NULL;
+
+    d->max_dgram_len = QUIC_MIN_INITIAL_DGRAM_LEN;
+    return (OSSL_CC_DATA *)d;
+}
+
+static void dummy_free(OSSL_CC_DATA *cc)
+{
+    OPENSSL_free(cc);
+}
+
+static void dummy_reset(OSSL_CC_DATA *cc)
+{
+
+}
+
+static int dummy_set_option_uint(OSSL_CC_DATA *cc,
+                                 uint32_t option_id,
+                                 uint64_t value)
+{
+    OSSL_CC_DUMMY *d = (OSSL_CC_DUMMY *)cc;
+
+    switch (option_id) {
+    case OSSL_CC_OPTION_MAX_DGRAM_PAYLOAD_LEN:
+        if (value > SIZE_MAX)
+            return 0;
+
+        d->max_dgram_len = (size_t)value;
+        return 1;
+
+    default:
+        return 0;
+    }
+}
+
+static int dummy_get_option_uint(OSSL_CC_DATA *cc,
+                                 uint32_t option_id,
+                                 uint64_t *value)
+{
+    OSSL_CC_DUMMY *d = (OSSL_CC_DUMMY *)cc;
+
+    switch (option_id) {
+    case OSSL_CC_OPTION_MAX_DGRAM_PAYLOAD_LEN:
+        *value = (uint64_t)d->max_dgram_len;
+        return 1;
+
+    default:
+        return 0;
+    }
+}
+
+static uint64_t dummy_get_tx_allowance(OSSL_CC_DATA *cc)
+{
+    return SIZE_MAX;
+}
+
+static OSSL_TIME dummy_get_wakeup_deadline(OSSL_CC_DATA *cc)
+{
+    return ossl_time_infinite();
+}
+
+static int dummy_on_data_sent(OSSL_CC_DATA *cc,
+                              uint64_t num_bytes)
+{
+    return 1;
+}
+
+static int dummy_on_data_acked(OSSL_CC_DATA *cc,
+                               const OSSL_CC_ACK_INFO *info)
+{
+    return 1;
+}
+
+static int dummy_on_data_lost(OSSL_CC_DATA *cc,
+                              const OSSL_CC_LOSS_INFO *info)
+{
+    return 1;
+}
+
+static int dummy_on_data_lost_finished(OSSL_CC_DATA *cc,
+                                       uint32_t flags)
+{
+    return 1;
+}
+
+static int dummy_on_data_invalidated(OSSL_CC_DATA *cc,
+                                     uint64_t num_bytes)
+{
+    return 1;
+}
+
+const OSSL_CC_METHOD ossl_cc_dummy_method = {
+    dummy_new,
+    dummy_free,
+    dummy_reset,
+    dummy_set_option_uint,
+    dummy_get_option_uint,
+    dummy_get_tx_allowance,
+    dummy_get_wakeup_deadline,
+    dummy_on_data_sent,
+    dummy_on_data_acked,
+    dummy_on_data_lost,
+    dummy_on_data_lost_finished,
+    dummy_on_data_invalidated,
+};