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
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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
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18 
19 #ifndef GRPC_SRC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_INSECURE_INSECURE_SECURITY_CONNECTOR_H
20 #define GRPC_SRC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_INSECURE_INSECURE_SECURITY_CONNECTOR_H
21 
22 #include <grpc/support/port_platform.h>
23 
24 #include <utility>
25 
26 #include "absl/status/status.h"
27 #include "absl/strings/string_view.h"
28 
29 #include <grpc/grpc.h>
30 #include <grpc/grpc_security.h>
31 
32 #include "src/core/lib/channel/channel_args.h"
33 #include "src/core/lib/gprpp/ref_counted_ptr.h"
34 #include "src/core/lib/iomgr/closure.h"
35 #include "src/core/lib/iomgr/endpoint.h"
36 #include "src/core/lib/iomgr/error.h"
37 #include "src/core/lib/iomgr/iomgr_fwd.h"
38 #include "src/core/lib/promise/arena_promise.h"
39 #include "src/core/lib/security/credentials/credentials.h"
40 #include "src/core/lib/security/security_connector/security_connector.h"
41 #include "src/core/lib/transport/handshaker.h"
42 #include "src/core/tsi/transport_security_interface.h"
43 
44 namespace grpc_core {
45 
46 extern const char kInsecureTransportSecurityType[];
47 
48 // Exposed for testing purposes only.
49 // Create an auth context which is necessary to pass the santiy check in
50 // client_auth_filter that verifies if the peer's auth context is obtained
51 // during handshakes.
52 RefCountedPtr<grpc_auth_context> TestOnlyMakeInsecureAuthContext();
53 
54 class InsecureChannelSecurityConnector
55     : public grpc_channel_security_connector {
56  public:
InsecureChannelSecurityConnector(RefCountedPtr<grpc_channel_credentials> channel_creds,RefCountedPtr<grpc_call_credentials> request_metadata_creds)57   InsecureChannelSecurityConnector(
58       RefCountedPtr<grpc_channel_credentials> channel_creds,
59       RefCountedPtr<grpc_call_credentials> request_metadata_creds)
60       : grpc_channel_security_connector("", std::move(channel_creds),
61                                         std::move(request_metadata_creds)) {}
62 
63   ArenaPromise<absl::Status> CheckCallHost(
64       absl::string_view host, grpc_auth_context* auth_context) override;
65 
66   void add_handshakers(const ChannelArgs& args,
67                        grpc_pollset_set* /* interested_parties */,
68                        HandshakeManager* handshake_manager) override;
69 
70   void check_peer(tsi_peer peer, grpc_endpoint* ep, const ChannelArgs& /*args*/,
71                   RefCountedPtr<grpc_auth_context>* auth_context,
72                   grpc_closure* on_peer_checked) override;
73 
cancel_check_peer(grpc_closure *,grpc_error_handle)74   void cancel_check_peer(grpc_closure* /*on_peer_checked*/,
75                          grpc_error_handle /*error*/) override {}
76 
77   int cmp(const grpc_security_connector* other_sc) const override;
78 };
79 
80 class InsecureServerSecurityConnector : public grpc_server_security_connector {
81  public:
InsecureServerSecurityConnector(RefCountedPtr<grpc_server_credentials> server_creds)82   explicit InsecureServerSecurityConnector(
83       RefCountedPtr<grpc_server_credentials> server_creds)
84       : grpc_server_security_connector("" /* url_scheme */,
85                                        std::move(server_creds)) {}
86 
87   void add_handshakers(const ChannelArgs& args,
88                        grpc_pollset_set* /* interested_parties */,
89                        HandshakeManager* handshake_manager) override;
90 
91   void check_peer(tsi_peer peer, grpc_endpoint* ep, const ChannelArgs& /*args*/,
92                   RefCountedPtr<grpc_auth_context>* auth_context,
93                   grpc_closure* on_peer_checked) override;
94 
cancel_check_peer(grpc_closure *,grpc_error_handle)95   void cancel_check_peer(grpc_closure* /*on_peer_checked*/,
96                          grpc_error_handle /*error*/) override {}
97 
98   int cmp(const grpc_security_connector* other) const override;
99 };
100 
101 }  // namespace grpc_core
102 
103 #endif  // GRPC_SRC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_INSECURE_INSECURE_SECURITY_CONNECTOR_H
104