mirror of https://github.com/openssl/openssl
165 lines
4.4 KiB
C
165 lines
4.4 KiB
C
/*
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* Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include "internal/quic_tserver.h"
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#include "internal/quic_channel.h"
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#include "internal/quic_statm.h"
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#include "internal/common.h"
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/*
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* QUIC Test Server Module
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* =======================
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*/
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struct quic_tserver_st {
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QUIC_TSERVER_ARGS args;
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/*
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* The QUIC channel providing the core QUIC connection implementation.
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*/
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QUIC_CHANNEL *ch;
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/* Our single bidirectional application data stream. */
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QUIC_STREAM *stream0;
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/* The current peer L4 address. AF_UNSPEC if we do not have a peer yet. */
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BIO_ADDR cur_peer_addr;
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/* Are we connected to a peer? */
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unsigned int connected : 1;
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};
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QUIC_TSERVER *ossl_quic_tserver_new(const QUIC_TSERVER_ARGS *args)
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{
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QUIC_TSERVER *srv = NULL;
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QUIC_CHANNEL_ARGS ch_args = {0};
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if (args->net_rbio == NULL || args->net_wbio == NULL)
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goto err;
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if ((srv = OPENSSL_zalloc(sizeof(*srv))) == NULL)
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goto err;
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srv->args = *args;
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ch_args.libctx = srv->args.libctx;
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ch_args.propq = srv->args.propq;
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ch_args.is_server = 1;
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if ((srv->ch = ossl_quic_channel_new(&ch_args)) == NULL)
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goto err;
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if (!ossl_quic_channel_set_net_rbio(srv->ch, srv->args.net_rbio)
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|| !ossl_quic_channel_set_net_wbio(srv->ch, srv->args.net_wbio))
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goto err;
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srv->stream0 = ossl_quic_channel_get_stream_by_id(srv->ch, 0);
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if (srv->stream0 == NULL)
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goto err;
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return srv;
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err:
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if (srv != NULL)
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ossl_quic_channel_free(srv->ch);
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OPENSSL_free(srv);
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return NULL;
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}
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void ossl_quic_tserver_free(QUIC_TSERVER *srv)
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{
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if (srv == NULL)
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return;
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ossl_quic_channel_free(srv->ch);
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BIO_free(srv->args.net_rbio);
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BIO_free(srv->args.net_wbio);
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OPENSSL_free(srv);
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}
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int ossl_quic_tserver_tick(QUIC_TSERVER *srv)
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{
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ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(srv->ch));
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if (ossl_quic_channel_is_active(srv->ch))
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srv->connected = 1;
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return 1;
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}
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int ossl_quic_tserver_is_connected(QUIC_TSERVER *srv)
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{
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return ossl_quic_channel_is_active(srv->ch);
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}
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int ossl_quic_tserver_read(QUIC_TSERVER *srv,
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unsigned char *buf,
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size_t buf_len,
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size_t *bytes_read)
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{
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int is_fin = 0; /* TODO(QUIC): Handle FIN in API */
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if (!ossl_quic_channel_is_active(srv->ch))
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return 0;
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if (!ossl_quic_rstream_read(srv->stream0->rstream, buf, buf_len,
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bytes_read, &is_fin))
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return 0;
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if (*bytes_read > 0) {
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/*
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* We have read at least one byte from the stream. Inform stream-level
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* RXFC of the retirement of controlled bytes. Update the active stream
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* status (the RXFC may now want to emit a frame granting more credit to
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* the peer).
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*/
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OSSL_RTT_INFO rtt_info;
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ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(srv->ch), &rtt_info);
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if (!ossl_quic_rxfc_on_retire(&srv->stream0->rxfc, *bytes_read,
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rtt_info.smoothed_rtt))
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return 0;
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}
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if (is_fin)
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srv->stream0->recv_fin_retired = 1;
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if (*bytes_read > 0)
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ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(srv->ch),
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srv->stream0);
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return 1;
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}
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int ossl_quic_tserver_write(QUIC_TSERVER *srv,
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const unsigned char *buf,
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size_t buf_len,
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size_t *bytes_written)
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{
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if (!ossl_quic_channel_is_active(srv->ch))
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return 0;
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if (!ossl_quic_sstream_append(srv->stream0->sstream,
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buf, buf_len, bytes_written))
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return 0;
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if (*bytes_written > 0)
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/*
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* We have appended at least one byte to the stream. Potentially mark
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* the stream as active, depending on FC.
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*/
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ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(srv->ch),
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srv->stream0);
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/* Try and send. */
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ossl_quic_tserver_tick(srv);
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return 1;
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}
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