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authorMauro Sardara <msardara@cisco.com>2020-02-21 11:52:28 +0100
committerMauro Sardara <msardara@cisco.com>2020-02-26 13:19:16 +0100
commitf4433f28b509a9f67ca85d79000ccf9c2f4b7a24 (patch)
tree0f754bc9d8222f3ace11849165753acd85be3b38 /libtransport/src/implementation/tls_rtc_socket_producer.cc
parent0e7669445b6be1163189521eabed7dd0124043c8 (diff)
[HICN-534] Major rework on libtransport organization
Change-Id: I361b83a18b4fd59be136d5f0817fc28e17e89884 Signed-off-by: Mauro Sardara <msardara@cisco.com>
Diffstat (limited to 'libtransport/src/implementation/tls_rtc_socket_producer.cc')
-rw-r--r--libtransport/src/implementation/tls_rtc_socket_producer.cc201
1 files changed, 201 insertions, 0 deletions
diff --git a/libtransport/src/implementation/tls_rtc_socket_producer.cc b/libtransport/src/implementation/tls_rtc_socket_producer.cc
new file mode 100644
index 000000000..3b3152993
--- /dev/null
+++ b/libtransport/src/implementation/tls_rtc_socket_producer.cc
@@ -0,0 +1,201 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <hicn/transport/core/interest.h>
+#include <hicn/transport/interfaces/p2psecure_socket_producer.h>
+
+#include <implementation/p2psecure_socket_producer.h>
+#include <implementation/tls_rtc_socket_producer.h>
+
+#include <openssl/bio.h>
+#include <openssl/rand.h>
+#include <openssl/ssl.h>
+
+namespace transport {
+namespace implementation {
+
+int TLSRTCProducerSocket::read(BIO *b, char *buf, size_t size,
+ size_t *readbytes) {
+ int ret;
+
+ if (size > INT_MAX) size = INT_MAX;
+
+ ret = TLSRTCProducerSocket::readOld(b, buf, (int)size);
+
+ if (ret <= 0) {
+ *readbytes = 0;
+ return ret;
+ }
+
+ *readbytes = (size_t)ret;
+
+ return 1;
+}
+
+int TLSRTCProducerSocket::readOld(BIO *b, char *buf, int size) {
+ TLSRTCProducerSocket *socket;
+ socket = (TLSRTCProducerSocket *)BIO_get_data(b);
+
+ std::unique_lock<std::mutex> lck(socket->mtx_);
+ if (!socket->something_to_read_) {
+ (socket->cv_).wait(lck);
+ }
+
+ utils::MemBuf *membuf = socket->packet_->next();
+ int size_to_read;
+
+ if ((int)membuf->length() > size) {
+ size_to_read = size;
+ } else {
+ size_to_read = membuf->length();
+ socket->something_to_read_ = false;
+ }
+
+ std::memcpy(buf, membuf->data(), size_to_read);
+ membuf->trimStart(size_to_read);
+
+ return size_to_read;
+}
+
+int TLSRTCProducerSocket::write(BIO *b, const char *buf, size_t size,
+ size_t *written) {
+ int ret;
+
+ if (size > INT_MAX) size = INT_MAX;
+
+ ret = TLSRTCProducerSocket::writeOld(b, buf, (int)size);
+
+ if (ret <= 0) {
+ *written = 0;
+ return ret;
+ }
+
+ *written = (size_t)ret;
+
+ return 1;
+}
+
+int TLSRTCProducerSocket::writeOld(BIO *b, const char *buf, int num) {
+ TLSRTCProducerSocket *socket;
+ socket = (TLSRTCProducerSocket *)BIO_get_data(b);
+
+ if ((SSL_in_before(socket->ssl_) || SSL_in_init(socket->ssl_)) &&
+ socket->first_) {
+ socket->tls_chunks_--;
+ bool making_manifest = socket->parent_->making_manifest_;
+ socket->parent_->setSocketOption(GeneralTransportOptions::MAKE_MANIFEST,
+ false);
+ socket->parent_->ProducerSocket::produce(
+ socket->name_, (const uint8_t *)buf, num, socket->tls_chunks_ == 0, 0);
+ socket->parent_->setSocketOption(GeneralTransportOptions::MAKE_MANIFEST,
+ making_manifest);
+ socket->first_ = false;
+
+ } else {
+ std::unique_ptr<utils::MemBuf> mbuf =
+ utils::MemBuf::copyBuffer(buf, (std::size_t)num, 0, 0);
+ auto a = mbuf.release();
+ socket->async_thread_.add([socket = socket, a]() {
+ socket->to_call_oncontentproduced_--;
+ auto mbuf = std::unique_ptr<utils::MemBuf>(a);
+ socket->RTCProducerSocket::produce(std::move(mbuf));
+ ProducerContentCallback on_content_produced_application;
+ socket->getSocketOption(ProducerCallbacksOptions::CONTENT_PRODUCED,
+ on_content_produced_application);
+ if (socket->to_call_oncontentproduced_ == 0 &&
+ on_content_produced_application) {
+ on_content_produced_application(
+ (transport::interface::ProducerSocket &)(*socket->getInterface()),
+ std::error_code(), 0);
+ }
+ });
+ }
+
+ return num;
+}
+
+TLSRTCProducerSocket::TLSRTCProducerSocket(
+ interface::ProducerSocket *producer_socket, P2PSecureProducerSocket *parent,
+ const Name &handshake_name)
+ : ProducerSocket(producer_socket),
+ RTCProducerSocket(producer_socket),
+ TLSProducerSocket(producer_socket, parent, handshake_name) {
+ BIO_METHOD *bio_meth =
+ BIO_meth_new(BIO_TYPE_ACCEPT, "secure rtc producer socket");
+ BIO_meth_set_read(bio_meth, TLSRTCProducerSocket::readOld);
+ BIO_meth_set_write(bio_meth, TLSRTCProducerSocket::writeOld);
+ BIO_meth_set_ctrl(bio_meth, TLSProducerSocket::ctrl);
+ BIO *bio = BIO_new(bio_meth);
+ BIO_set_init(bio, 1);
+ BIO_set_data(bio, this);
+ SSL_set_bio(ssl_, bio, bio);
+}
+
+void TLSRTCProducerSocket::accept() {
+ if (SSL_in_before(ssl_) || SSL_in_init(ssl_)) {
+ tls_chunks_ = 1;
+ int result = SSL_accept(ssl_);
+ if (result != 1)
+ throw errors::RuntimeException("Unable to perform client handshake");
+ }
+
+ TRANSPORT_LOGD("Handshake performed!");
+ parent_->list_secure_rtc_producers.push_front(
+ std::move(parent_->map_secure_rtc_producers[handshake_name_]));
+ parent_->map_secure_rtc_producers.erase(handshake_name_);
+
+ ProducerInterestCallback on_interest_process_decrypted;
+ getSocketOption(ProducerCallbacksOptions::CACHE_MISS,
+ on_interest_process_decrypted);
+
+ if (on_interest_process_decrypted) {
+ Interest inter(std::move(packet_));
+ on_interest_process_decrypted(
+ (transport::interface::ProducerSocket &)(*getInterface()), inter);
+ }
+
+ parent_->cv_.notify_one();
+}
+
+int TLSRTCProducerSocket::async_accept() {
+ if (!async_thread_.stopped()) {
+ async_thread_.add([this]() { this->TLSRTCProducerSocket::accept(); });
+ } else {
+ throw errors::RuntimeException(
+ "Async thread not running, impossible to perform handshake");
+ }
+
+ return 1;
+}
+
+void TLSRTCProducerSocket::produce(std::unique_ptr<utils::MemBuf> &&buffer) {
+ if (SSL_in_before(ssl_) || SSL_in_init(ssl_)) {
+ throw errors::RuntimeException(
+ "New handshake on the same P2P secure producer socket not supported");
+ }
+
+ size_t buf_size = buffer->length();
+ tls_chunks_ = ceil((float)buf_size / (float)SSL3_RT_MAX_PLAIN_LENGTH);
+ to_call_oncontentproduced_ = tls_chunks_;
+
+ SSL_write(ssl_, buffer->data(), buf_size);
+ BIO *wbio = SSL_get_wbio(ssl_);
+ int i = BIO_flush(wbio);
+ (void)i; // To shut up gcc 5
+}
+
+} // namespace implementation
+
+} // namespace transport