| /* |
| * |
| * Copyright 2016 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #include "src/core/lib/security/credentials/ssl/ssl_credentials.h" |
| |
| #include <string.h> |
| |
| #include "src/core/lib/channel/channel_args.h" |
| #include "src/core/lib/surface/api_trace.h" |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/string_util.h> |
| |
| // |
| // SSL Channel Credentials. |
| // |
| |
| static void ssl_config_pem_key_cert_pair_destroy( |
| tsi_ssl_pem_key_cert_pair *kp) { |
| if (kp == NULL) return; |
| gpr_free((void *)kp->private_key); |
| gpr_free((void *)kp->cert_chain); |
| } |
| |
| static void ssl_destruct(grpc_exec_ctx *exec_ctx, |
| grpc_channel_credentials *creds) { |
| grpc_ssl_credentials *c = (grpc_ssl_credentials *)creds; |
| gpr_free(c->config.pem_root_certs); |
| ssl_config_pem_key_cert_pair_destroy(&c->config.pem_key_cert_pair); |
| } |
| |
| static grpc_security_status ssl_create_security_connector( |
| grpc_exec_ctx *exec_ctx, grpc_channel_credentials *creds, |
| grpc_call_credentials *call_creds, const char *target, |
| const grpc_channel_args *args, grpc_channel_security_connector **sc, |
| grpc_channel_args **new_args) { |
| grpc_ssl_credentials *c = (grpc_ssl_credentials *)creds; |
| grpc_security_status status = GRPC_SECURITY_OK; |
| const char *overridden_target_name = NULL; |
| for (size_t i = 0; args && i < args->num_args; i++) { |
| grpc_arg *arg = &args->args[i]; |
| if (strcmp(arg->key, GRPC_SSL_TARGET_NAME_OVERRIDE_ARG) == 0 && |
| arg->type == GRPC_ARG_STRING) { |
| overridden_target_name = arg->value.string; |
| break; |
| } |
| } |
| status = grpc_ssl_channel_security_connector_create( |
| exec_ctx, call_creds, &c->config, target, overridden_target_name, sc); |
| if (status != GRPC_SECURITY_OK) { |
| return status; |
| } |
| grpc_arg new_arg = grpc_channel_arg_string_create( |
| (char *)GRPC_ARG_HTTP2_SCHEME, (char *)"https"); |
| *new_args = grpc_channel_args_copy_and_add(args, &new_arg, 1); |
| return status; |
| } |
| |
| static grpc_channel_credentials_vtable ssl_vtable = { |
| ssl_destruct, ssl_create_security_connector, NULL}; |
| |
| static void ssl_build_config(const char *pem_root_certs, |
| grpc_ssl_pem_key_cert_pair *pem_key_cert_pair, |
| grpc_ssl_config *config) { |
| if (pem_root_certs != NULL) { |
| config->pem_root_certs = gpr_strdup(pem_root_certs); |
| } |
| if (pem_key_cert_pair != NULL) { |
| GPR_ASSERT(pem_key_cert_pair->private_key != NULL); |
| GPR_ASSERT(pem_key_cert_pair->cert_chain != NULL); |
| config->pem_key_cert_pair.cert_chain = |
| gpr_strdup(pem_key_cert_pair->cert_chain); |
| config->pem_key_cert_pair.private_key = |
| gpr_strdup(pem_key_cert_pair->private_key); |
| } |
| } |
| |
| grpc_channel_credentials *grpc_ssl_credentials_create( |
| const char *pem_root_certs, grpc_ssl_pem_key_cert_pair *pem_key_cert_pair, |
| void *reserved) { |
| grpc_ssl_credentials *c = |
| (grpc_ssl_credentials *)gpr_zalloc(sizeof(grpc_ssl_credentials)); |
| GRPC_API_TRACE( |
| "grpc_ssl_credentials_create(pem_root_certs=%s, " |
| "pem_key_cert_pair=%p, " |
| "reserved=%p)", |
| 3, (pem_root_certs, pem_key_cert_pair, reserved)); |
| GPR_ASSERT(reserved == NULL); |
| c->base.type = GRPC_CHANNEL_CREDENTIALS_TYPE_SSL; |
| c->base.vtable = &ssl_vtable; |
| gpr_ref_init(&c->base.refcount, 1); |
| ssl_build_config(pem_root_certs, pem_key_cert_pair, &c->config); |
| return &c->base; |
| } |
| |
| // |
| // SSL Server Credentials. |
| // |
| |
| static void ssl_server_destruct(grpc_exec_ctx *exec_ctx, |
| grpc_server_credentials *creds) { |
| grpc_ssl_server_credentials *c = (grpc_ssl_server_credentials *)creds; |
| size_t i; |
| for (i = 0; i < c->config.num_key_cert_pairs; i++) { |
| ssl_config_pem_key_cert_pair_destroy(&c->config.pem_key_cert_pairs[i]); |
| } |
| gpr_free(c->config.pem_key_cert_pairs); |
| gpr_free(c->config.pem_root_certs); |
| } |
| |
| static grpc_security_status ssl_server_create_security_connector( |
| grpc_exec_ctx *exec_ctx, grpc_server_credentials *creds, |
| grpc_server_security_connector **sc) { |
| grpc_ssl_server_credentials *c = (grpc_ssl_server_credentials *)creds; |
| return grpc_ssl_server_security_connector_create(exec_ctx, &c->config, sc); |
| } |
| |
| static grpc_server_credentials_vtable ssl_server_vtable = { |
| ssl_server_destruct, ssl_server_create_security_connector}; |
| |
| static void ssl_build_server_config( |
| const char *pem_root_certs, grpc_ssl_pem_key_cert_pair *pem_key_cert_pairs, |
| size_t num_key_cert_pairs, |
| grpc_ssl_client_certificate_request_type client_certificate_request, |
| grpc_ssl_server_config *config) { |
| size_t i; |
| config->client_certificate_request = client_certificate_request; |
| if (pem_root_certs != NULL) { |
| config->pem_root_certs = gpr_strdup(pem_root_certs); |
| } |
| if (num_key_cert_pairs > 0) { |
| GPR_ASSERT(pem_key_cert_pairs != NULL); |
| config->pem_key_cert_pairs = (tsi_ssl_pem_key_cert_pair *)gpr_zalloc( |
| num_key_cert_pairs * sizeof(tsi_ssl_pem_key_cert_pair)); |
| } |
| config->num_key_cert_pairs = num_key_cert_pairs; |
| for (i = 0; i < num_key_cert_pairs; i++) { |
| GPR_ASSERT(pem_key_cert_pairs[i].private_key != NULL); |
| GPR_ASSERT(pem_key_cert_pairs[i].cert_chain != NULL); |
| config->pem_key_cert_pairs[i].cert_chain = |
| gpr_strdup(pem_key_cert_pairs[i].cert_chain); |
| config->pem_key_cert_pairs[i].private_key = |
| gpr_strdup(pem_key_cert_pairs[i].private_key); |
| } |
| } |
| |
| grpc_server_credentials *grpc_ssl_server_credentials_create( |
| const char *pem_root_certs, grpc_ssl_pem_key_cert_pair *pem_key_cert_pairs, |
| size_t num_key_cert_pairs, int force_client_auth, void *reserved) { |
| return grpc_ssl_server_credentials_create_ex( |
| pem_root_certs, pem_key_cert_pairs, num_key_cert_pairs, |
| force_client_auth |
| ? GRPC_SSL_REQUEST_AND_REQUIRE_CLIENT_CERTIFICATE_AND_VERIFY |
| : GRPC_SSL_DONT_REQUEST_CLIENT_CERTIFICATE, |
| reserved); |
| } |
| |
| grpc_server_credentials *grpc_ssl_server_credentials_create_ex( |
| const char *pem_root_certs, grpc_ssl_pem_key_cert_pair *pem_key_cert_pairs, |
| size_t num_key_cert_pairs, |
| grpc_ssl_client_certificate_request_type client_certificate_request, |
| void *reserved) { |
| grpc_ssl_server_credentials *c = (grpc_ssl_server_credentials *)gpr_zalloc( |
| sizeof(grpc_ssl_server_credentials)); |
| GRPC_API_TRACE( |
| "grpc_ssl_server_credentials_create_ex(" |
| "pem_root_certs=%s, pem_key_cert_pairs=%p, num_key_cert_pairs=%lu, " |
| "client_certificate_request=%d, reserved=%p)", |
| 5, (pem_root_certs, pem_key_cert_pairs, (unsigned long)num_key_cert_pairs, |
| client_certificate_request, reserved)); |
| GPR_ASSERT(reserved == NULL); |
| c->base.type = GRPC_CHANNEL_CREDENTIALS_TYPE_SSL; |
| gpr_ref_init(&c->base.refcount, 1); |
| c->base.vtable = &ssl_server_vtable; |
| ssl_build_server_config(pem_root_certs, pem_key_cert_pairs, |
| num_key_cert_pairs, client_certificate_request, |
| &c->config); |
| return &c->base; |
| } |