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d6f86e8fca
This extends the API surface so that custom certificates can be provided by an API user in both the standalone and factory creation paths for the OpenSSLAdapter. Prior to this change the SSL roots were hardcoded in a header file and directly included into openssladapter.cc. This forces the 100 kilobytes of certificates to always be compiled into the library. This is undesirable in certain linking cases where these certificates can be shared from another binary that already has an equivalent set of trusted roots hard coded into the binary. Support for removing the hard coded SSL roots has also been added through a new build flag. By default the hard coded SSL roots will be included and will be used if no other trusted root certificates are provided. The main goal of this CL is to reduce total binary size requirements of WebRTC by about 100kb in certain applications where adding these certificates is redundant. Change-Id: Ifd36d92b5cb32d1b3098a61ddfc244d76df8f30f Bug: chromium:526260 Change-Id: Ifd36d92b5cb32d1b3098a61ddfc244d76df8f30f Reviewed-on: https://webrtc-review.googlesource.com/64841 Commit-Queue: Benjamin Wright <benwright@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org> Cr-Commit-Position: refs/heads/master@{#23180}
102 lines
3.5 KiB
C++
102 lines
3.5 KiB
C++
/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef RTC_BASE_OPENSSLIDENTITY_H_
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#define RTC_BASE_OPENSSLIDENTITY_H_
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#include <openssl/evp.h>
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#include <openssl/x509.h>
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#include <memory>
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#include <string>
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#include "rtc_base/checks.h"
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#include "rtc_base/constructormagic.h"
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#include "rtc_base/opensslcertificate.h"
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#include "rtc_base/sslidentity.h"
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typedef struct ssl_ctx_st SSL_CTX;
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namespace rtc {
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// OpenSSLKeyPair encapsulates an OpenSSL EVP_PKEY* keypair object,
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// which is reference counted inside the OpenSSL library.
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class OpenSSLKeyPair {
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public:
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explicit OpenSSLKeyPair(EVP_PKEY* pkey) : pkey_(pkey) {
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RTC_DCHECK(pkey_ != nullptr);
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}
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static OpenSSLKeyPair* Generate(const KeyParams& key_params);
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// Constructs a key pair from the private key PEM string. This must not result
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// in missing public key parameters. Returns null on error.
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static OpenSSLKeyPair* FromPrivateKeyPEMString(const std::string& pem_string);
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virtual ~OpenSSLKeyPair();
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virtual OpenSSLKeyPair* GetReference();
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EVP_PKEY* pkey() const { return pkey_; }
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std::string PrivateKeyToPEMString() const;
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std::string PublicKeyToPEMString() const;
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bool operator==(const OpenSSLKeyPair& other) const;
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bool operator!=(const OpenSSLKeyPair& other) const;
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private:
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void AddReference();
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EVP_PKEY* pkey_;
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RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLKeyPair);
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};
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// Holds a keypair and certificate together, and a method to generate
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// them consistently.
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class OpenSSLIdentity : public SSLIdentity {
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public:
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static OpenSSLIdentity* GenerateWithExpiration(const std::string& common_name,
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const KeyParams& key_params,
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time_t certificate_lifetime);
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static OpenSSLIdentity* GenerateForTest(const SSLIdentityParams& params);
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static SSLIdentity* FromPEMStrings(const std::string& private_key,
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const std::string& certificate);
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static SSLIdentity* FromPEMChainStrings(const std::string& private_key,
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const std::string& certificate_chain);
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~OpenSSLIdentity() override;
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const OpenSSLCertificate& certificate() const override;
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const SSLCertChain& cert_chain() const override;
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OpenSSLIdentity* GetReference() const override;
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// Configure an SSL context object to use our key and certificate.
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bool ConfigureIdentity(SSL_CTX* ctx);
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std::string PrivateKeyToPEMString() const override;
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std::string PublicKeyToPEMString() const override;
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bool operator==(const OpenSSLIdentity& other) const;
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bool operator!=(const OpenSSLIdentity& other) const;
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private:
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OpenSSLIdentity(std::unique_ptr<OpenSSLKeyPair> key_pair,
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std::unique_ptr<OpenSSLCertificate> certificate);
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OpenSSLIdentity(std::unique_ptr<OpenSSLKeyPair> key_pair,
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std::unique_ptr<SSLCertChain> cert_chain);
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static OpenSSLIdentity* GenerateInternal(const SSLIdentityParams& params);
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std::unique_ptr<OpenSSLKeyPair> key_pair_;
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std::unique_ptr<SSLCertChain> cert_chain_;
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RTC_DISALLOW_COPY_AND_ASSIGN(OpenSSLIdentity);
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};
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} // namespace rtc
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#endif // RTC_BASE_OPENSSLIDENTITY_H_
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