8c745d18e0
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Builds out the full v1 scope: a vendored+patched openscreen subset for low-latency Cast Streaming (Mirroring receiver 0F5096E8) alongside the existing Cast V2/HLS and new DLNA/AVTransport casting paths, breadcastd's Idle/Casting state machine with a private IPC socket, the breadcast GTK4 popup as a thin IPC client, and bread.cast.*/bread.command.cast.* breadd integration (device discovery, start/stop, mirroring lifecycle events). Also adds bakery/systemd/Forgejo CI packaging. Validated end-to-end against a real Chromecast/Google TV: negotiated Cast Streaming session, live pipeline playback, and daemon+GUI click-to-cast/ stop through the actual popup.
62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
// Copyright 2019 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "util/crypto/openssl_util.h"
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#include <openssl/crypto.h>
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#include <openssl/err.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <sstream>
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#include <string>
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#include <string_view>
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#include <utility>
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#include "util/osp_logging.h"
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namespace openscreen {
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namespace {
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// Callback routine for OpenSSL to print error messages. `str` is a
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// nullptr-terminated string of length `len` containing diagnostic information
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// such as the library, function and reason for the error, the file and line
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// where the error originated, plus potentially any context-specific
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// information about the error. `context` contains a pointer to user-supplied
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// data, which is currently unused.
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// If this callback returns a value <= 0, OpenSSL will stop processing the
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// error queue and return, otherwise it will continue calling this function
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// until all errors have been removed from the queue.
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int OpenSSLErrorCallback(const char* str, size_t len, void* context) {
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OSP_DVLOG << "\t" << std::string_view(str, len);
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return 1;
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}
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} // namespace
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void EnsureOpenSSLInit() {
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// LOCAL PATCH (breadcast): upstream calls OPENSSL_init_ssl() here, but
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// this vendored subset never touches libssl (no TLS -- see
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// ../../../PATCHES.md), so this just does the general libcrypto init
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// instead. Safe to call repeatedly; OpenSSL 3.x makes this optional
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// anyway, but frame_crypto.cc's key setup wants it done up front.
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OPENSSL_init_crypto(0, nullptr);
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}
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void ClearOpenSSLERRStack(const Location& location) {
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if (OSP_DCHECK_IS_ON()) {
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uint32_t error_num = ERR_peek_error();
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if (error_num == 0) {
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return;
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}
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OSP_DVLOG << "OpenSSL ERR_get_error stack from " << location;
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ERR_print_errors_cb(&OpenSSLErrorCallback, nullptr);
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} else {
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ERR_clear_error();
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}
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}
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} // namespace openscreen
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