1 // 2 // 3 // Copyright 2020 gRPC authors. 4 // 5 // Licensed under the Apache License, Version 2.0 (the "License"); 6 // you may not use this file except in compliance with the License. 7 // You may obtain a copy of the License at 8 // 9 // http://www.apache.org/licenses/LICENSE-2.0 10 // 11 // Unless required by applicable law or agreed to in writing, software 12 // distributed under the License is distributed on an "AS IS" BASIS, 13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 // See the License for the specific language governing permissions and 15 // limitations under the License. 16 // 17 // 18 19 #ifndef GRPC_SRC_CORE_LIB_SECURITY_CREDENTIALS_XDS_XDS_CREDENTIALS_H 20 #define GRPC_SRC_CORE_LIB_SECURITY_CREDENTIALS_XDS_XDS_CREDENTIALS_H 21 22 #include <grpc/credentials.h> 23 #include <grpc/grpc.h> 24 #include <grpc/grpc_security.h> 25 #include <grpc/support/port_platform.h> 26 #include <stddef.h> 27 28 #include <functional> 29 #include <string> 30 #include <utility> 31 #include <vector> 32 33 #include "absl/status/status.h" 34 #include "src/core/lib/channel/channel_args.h" 35 #include "src/core/lib/security/credentials/credentials.h" 36 #include "src/core/lib/security/credentials/tls/grpc_tls_certificate_verifier.h" 37 #include "src/core/lib/security/security_connector/security_connector.h" 38 #include "src/core/util/matchers.h" 39 #include "src/core/util/ref_counted_ptr.h" 40 #include "src/core/util/unique_type_name.h" 41 #include "src/core/xds/grpc/xds_certificate_provider.h" 42 43 namespace grpc_core { 44 45 class XdsCertificateVerifier : public grpc_tls_certificate_verifier { 46 public: 47 explicit XdsCertificateVerifier( 48 RefCountedPtr<XdsCertificateProvider> xds_certificate_provider); 49 50 bool Verify(grpc_tls_custom_verification_check_request* request, 51 std::function<void(absl::Status)>, 52 absl::Status* sync_status) override; 53 void Cancel(grpc_tls_custom_verification_check_request*) override; 54 55 UniqueTypeName type() const override; 56 57 private: 58 int CompareImpl(const grpc_tls_certificate_verifier* other) const override; 59 60 RefCountedPtr<XdsCertificateProvider> xds_certificate_provider_; 61 }; 62 63 class XdsCredentials final : public grpc_channel_credentials { 64 public: XdsCredentials(RefCountedPtr<grpc_channel_credentials> fallback_credentials)65 explicit XdsCredentials( 66 RefCountedPtr<grpc_channel_credentials> fallback_credentials) 67 : fallback_credentials_(std::move(fallback_credentials)) {} 68 69 RefCountedPtr<grpc_channel_security_connector> create_security_connector( 70 RefCountedPtr<grpc_call_credentials> call_creds, const char* target_name, 71 ChannelArgs* args) override; 72 73 static UniqueTypeName Type(); 74 type()75 UniqueTypeName type() const override { return Type(); } 76 77 private: cmp_impl(const grpc_channel_credentials * other)78 int cmp_impl(const grpc_channel_credentials* other) const override { 79 auto* o = static_cast<const XdsCredentials*>(other); 80 return fallback_credentials_->cmp(o->fallback_credentials_.get()); 81 } 82 83 RefCountedPtr<grpc_channel_credentials> fallback_credentials_; 84 }; 85 86 class XdsServerCredentials final : public grpc_server_credentials { 87 public: XdsServerCredentials(RefCountedPtr<grpc_server_credentials> fallback_credentials)88 explicit XdsServerCredentials( 89 RefCountedPtr<grpc_server_credentials> fallback_credentials) 90 : fallback_credentials_(std::move(fallback_credentials)) {} 91 92 RefCountedPtr<grpc_server_security_connector> create_security_connector( 93 const ChannelArgs& /* args */) override; 94 95 static UniqueTypeName Type(); 96 type()97 UniqueTypeName type() const override { return Type(); } 98 99 private: 100 RefCountedPtr<grpc_server_credentials> fallback_credentials_; 101 }; 102 103 bool TestOnlyXdsVerifySubjectAlternativeNames( 104 const char* const* subject_alternative_names, 105 size_t subject_alternative_names_size, 106 const std::vector<StringMatcher>& matchers); 107 108 } // namespace grpc_core 109 110 #endif // GRPC_SRC_CORE_LIB_SECURITY_CREDENTIALS_XDS_XDS_CREDENTIALS_H 111