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/*
* Copyright 2022-2023 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;
size_t *p_diag_max_dgram_len;
} OSSL_CC_DUMMY;
static void dummy_update_diag(OSSL_CC_DUMMY *d);
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_input_params(OSSL_CC_DATA *cc, const OSSL_PARAM *params)
{
OSSL_CC_DUMMY *d = (OSSL_CC_DUMMY *)cc;
const OSSL_PARAM *p;
size_t value;
p = OSSL_PARAM_locate_const(params, OSSL_CC_OPTION_MAX_DGRAM_PAYLOAD_LEN);
if (p != NULL) {
if (!OSSL_PARAM_get_size_t(p, &value))
return 0;
if (value < QUIC_MIN_INITIAL_DGRAM_LEN)
return 0;
d->max_dgram_len = value;
dummy_update_diag(d);
}
return 1;
}
static int dummy_bind_diagnostic(OSSL_CC_DATA *cc, OSSL_PARAM *params)
{
OSSL_CC_DUMMY *d = (OSSL_CC_DUMMY *)cc;
const OSSL_PARAM *p;
p = OSSL_PARAM_locate_const(params, OSSL_CC_OPTION_MAX_DGRAM_PAYLOAD_LEN);
if (p != NULL) {
if (p->data_type != OSSL_PARAM_UNSIGNED_INTEGER
|| p->data_size != sizeof(size_t))
return 0;
d->p_diag_max_dgram_len = p->data;
}
dummy_update_diag(d);
return 1;
}
static int dummy_unbind_diagnostic(OSSL_CC_DATA *cc, OSSL_PARAM *params)
{
OSSL_CC_DUMMY *d = (OSSL_CC_DUMMY *)cc;
if (OSSL_PARAM_locate_const(params, OSSL_CC_OPTION_MAX_DGRAM_PAYLOAD_LEN)
!= NULL)
d->p_diag_max_dgram_len = NULL;
return 1;
}
static void dummy_update_diag(OSSL_CC_DUMMY *d)
{
if (d->p_diag_max_dgram_len != NULL)
*d->p_diag_max_dgram_len = d->max_dgram_len;
}
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_input_params,
dummy_bind_diagnostic,
dummy_unbind_diagnostic,
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,
};
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