1 /*
2 *
3 * Copyright 2018 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 #include <grpc/support/port_platform.h>
20
21 #include "src/core/lib/security/credentials/alts/alts_credentials.h"
22
23 #include <cstring>
24
25 #include <grpc/grpc.h>
26 #include <grpc/support/alloc.h>
27 #include <grpc/support/log.h>
28 #include <grpc/support/string_util.h>
29
30 #include "src/core/lib/security/credentials/alts/check_gcp_environment.h"
31 #include "src/core/lib/security/security_connector/alts/alts_security_connector.h"
32
33 #define GRPC_CREDENTIALS_TYPE_ALTS "Alts"
34 #define GRPC_ALTS_HANDSHAKER_SERVICE_URL "metadata.google.internal.:8080"
35
grpc_alts_credentials(const grpc_alts_credentials_options * options,const char * handshaker_service_url)36 grpc_alts_credentials::grpc_alts_credentials(
37 const grpc_alts_credentials_options* options,
38 const char* handshaker_service_url)
39 : grpc_channel_credentials(GRPC_CREDENTIALS_TYPE_ALTS),
40 options_(grpc_alts_credentials_options_copy(options)),
41 handshaker_service_url_(handshaker_service_url == nullptr
42 ? gpr_strdup(GRPC_ALTS_HANDSHAKER_SERVICE_URL)
43 : gpr_strdup(handshaker_service_url)) {
44 grpc_alts_set_rpc_protocol_versions(&options_->rpc_versions);
45 }
46
~grpc_alts_credentials()47 grpc_alts_credentials::~grpc_alts_credentials() {
48 grpc_alts_credentials_options_destroy(options_);
49 gpr_free(handshaker_service_url_);
50 }
51
52 grpc_core::RefCountedPtr<grpc_channel_security_connector>
create_security_connector(grpc_core::RefCountedPtr<grpc_call_credentials> call_creds,const char * target_name,const grpc_channel_args *,grpc_channel_args **)53 grpc_alts_credentials::create_security_connector(
54 grpc_core::RefCountedPtr<grpc_call_credentials> call_creds,
55 const char* target_name, const grpc_channel_args* /*args*/,
56 grpc_channel_args** /*new_args*/) {
57 return grpc_alts_channel_security_connector_create(
58 this->Ref(), std::move(call_creds), target_name);
59 }
60
grpc_alts_server_credentials(const grpc_alts_credentials_options * options,const char * handshaker_service_url)61 grpc_alts_server_credentials::grpc_alts_server_credentials(
62 const grpc_alts_credentials_options* options,
63 const char* handshaker_service_url)
64 : grpc_server_credentials(GRPC_CREDENTIALS_TYPE_ALTS),
65 options_(grpc_alts_credentials_options_copy(options)),
66 handshaker_service_url_(handshaker_service_url == nullptr
67 ? gpr_strdup(GRPC_ALTS_HANDSHAKER_SERVICE_URL)
68 : gpr_strdup(handshaker_service_url)) {
69 grpc_alts_set_rpc_protocol_versions(&options_->rpc_versions);
70 }
71
72 grpc_core::RefCountedPtr<grpc_server_security_connector>
create_security_connector(const grpc_channel_args *)73 grpc_alts_server_credentials::create_security_connector(
74 const grpc_channel_args* /* args */) {
75 return grpc_alts_server_security_connector_create(this->Ref());
76 }
77
~grpc_alts_server_credentials()78 grpc_alts_server_credentials::~grpc_alts_server_credentials() {
79 grpc_alts_credentials_options_destroy(options_);
80 gpr_free(handshaker_service_url_);
81 }
82
grpc_alts_credentials_create_customized(const grpc_alts_credentials_options * options,const char * handshaker_service_url,bool enable_untrusted_alts)83 grpc_channel_credentials* grpc_alts_credentials_create_customized(
84 const grpc_alts_credentials_options* options,
85 const char* handshaker_service_url, bool enable_untrusted_alts) {
86 if (!enable_untrusted_alts && !grpc_alts_is_running_on_gcp()) {
87 return nullptr;
88 }
89 return new grpc_alts_credentials(options, handshaker_service_url);
90 }
91
grpc_alts_server_credentials_create_customized(const grpc_alts_credentials_options * options,const char * handshaker_service_url,bool enable_untrusted_alts)92 grpc_server_credentials* grpc_alts_server_credentials_create_customized(
93 const grpc_alts_credentials_options* options,
94 const char* handshaker_service_url, bool enable_untrusted_alts) {
95 if (!enable_untrusted_alts && !grpc_alts_is_running_on_gcp()) {
96 return nullptr;
97 }
98 return new grpc_alts_server_credentials(options, handshaker_service_url);
99 }
100
grpc_alts_credentials_create(const grpc_alts_credentials_options * options)101 grpc_channel_credentials* grpc_alts_credentials_create(
102 const grpc_alts_credentials_options* options) {
103 return grpc_alts_credentials_create_customized(
104 options, GRPC_ALTS_HANDSHAKER_SERVICE_URL, false);
105 }
106
grpc_alts_server_credentials_create(const grpc_alts_credentials_options * options)107 grpc_server_credentials* grpc_alts_server_credentials_create(
108 const grpc_alts_credentials_options* options) {
109 return grpc_alts_server_credentials_create_customized(
110 options, GRPC_ALTS_HANDSHAKER_SERVICE_URL, false);
111 }
112