| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #include "src/core/lib/security/credentials/credentials.h" |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include "src/core/lib/channel/channel_args.h" |
| #include "src/core/lib/channel/http_client_filter.h" |
| #include "src/core/lib/http/httpcli.h" |
| #include "src/core/lib/http/parser.h" |
| #include "src/core/lib/iomgr/executor.h" |
| #include "src/core/lib/json/json.h" |
| #include "src/core/lib/support/string.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> |
| #include <grpc/support/sync.h> |
| #include <grpc/support/time.h> |
| |
| /* -- Common. -- */ |
| |
| grpc_credentials_metadata_request *grpc_credentials_metadata_request_create( |
| grpc_call_credentials *creds, grpc_credentials_metadata_cb cb, |
| void *user_data) { |
| grpc_credentials_metadata_request *r = |
| gpr_malloc(sizeof(grpc_credentials_metadata_request)); |
| r->creds = grpc_call_credentials_ref(creds); |
| r->cb = cb; |
| r->user_data = user_data; |
| return r; |
| } |
| |
| void grpc_credentials_metadata_request_destroy( |
| grpc_credentials_metadata_request *r) { |
| grpc_call_credentials_unref(r->creds); |
| gpr_free(r); |
| } |
| |
| grpc_channel_credentials *grpc_channel_credentials_ref( |
| grpc_channel_credentials *creds) { |
| if (creds == NULL) return NULL; |
| gpr_ref(&creds->refcount); |
| return creds; |
| } |
| |
| void grpc_channel_credentials_unref(grpc_channel_credentials *creds) { |
| if (creds == NULL) return; |
| if (gpr_unref(&creds->refcount)) { |
| if (creds->vtable->destruct != NULL) creds->vtable->destruct(creds); |
| gpr_free(creds); |
| } |
| } |
| |
| void grpc_channel_credentials_release(grpc_channel_credentials *creds) { |
| GRPC_API_TRACE("grpc_channel_credentials_release(creds=%p)", 1, (creds)); |
| grpc_channel_credentials_unref(creds); |
| } |
| |
| grpc_call_credentials *grpc_call_credentials_ref(grpc_call_credentials *creds) { |
| if (creds == NULL) return NULL; |
| gpr_ref(&creds->refcount); |
| return creds; |
| } |
| |
| void grpc_call_credentials_unref(grpc_call_credentials *creds) { |
| if (creds == NULL) return; |
| if (gpr_unref(&creds->refcount)) { |
| if (creds->vtable->destruct != NULL) creds->vtable->destruct(creds); |
| gpr_free(creds); |
| } |
| } |
| |
| void grpc_call_credentials_release(grpc_call_credentials *creds) { |
| GRPC_API_TRACE("grpc_call_credentials_release(creds=%p)", 1, (creds)); |
| grpc_call_credentials_unref(creds); |
| } |
| |
| void grpc_call_credentials_get_request_metadata( |
| grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, |
| grpc_polling_entity *pollent, grpc_auth_metadata_context context, |
| grpc_credentials_metadata_cb cb, void *user_data) { |
| if (creds == NULL || creds->vtable->get_request_metadata == NULL) { |
| if (cb != NULL) { |
| cb(exec_ctx, user_data, NULL, 0, GRPC_CREDENTIALS_OK); |
| } |
| return; |
| } |
| creds->vtable->get_request_metadata(exec_ctx, creds, pollent, context, cb, |
| user_data); |
| } |
| |
| grpc_security_status grpc_channel_credentials_create_security_connector( |
| grpc_channel_credentials *channel_creds, const char *target, |
| const grpc_channel_args *args, grpc_channel_security_connector **sc, |
| grpc_channel_args **new_args) { |
| *new_args = NULL; |
| if (channel_creds == NULL) { |
| return GRPC_SECURITY_ERROR; |
| } |
| GPR_ASSERT(channel_creds->vtable->create_security_connector != NULL); |
| return channel_creds->vtable->create_security_connector( |
| channel_creds, NULL, target, args, sc, new_args); |
| } |
| |
| grpc_server_credentials *grpc_server_credentials_ref( |
| grpc_server_credentials *creds) { |
| if (creds == NULL) return NULL; |
| gpr_ref(&creds->refcount); |
| return creds; |
| } |
| |
| void grpc_server_credentials_unref(grpc_server_credentials *creds) { |
| if (creds == NULL) return; |
| if (gpr_unref(&creds->refcount)) { |
| if (creds->vtable->destruct != NULL) creds->vtable->destruct(creds); |
| if (creds->processor.destroy != NULL && creds->processor.state != NULL) { |
| creds->processor.destroy(creds->processor.state); |
| } |
| gpr_free(creds); |
| } |
| } |
| |
| void grpc_server_credentials_release(grpc_server_credentials *creds) { |
| GRPC_API_TRACE("grpc_server_credentials_release(creds=%p)", 1, (creds)); |
| grpc_server_credentials_unref(creds); |
| } |
| |
| grpc_security_status grpc_server_credentials_create_security_connector( |
| grpc_server_credentials *creds, grpc_server_security_connector **sc) { |
| if (creds == NULL || creds->vtable->create_security_connector == NULL) { |
| gpr_log(GPR_ERROR, "Server credentials cannot create security context."); |
| return GRPC_SECURITY_ERROR; |
| } |
| return creds->vtable->create_security_connector(creds, sc); |
| } |
| |
| void grpc_server_credentials_set_auth_metadata_processor( |
| grpc_server_credentials *creds, grpc_auth_metadata_processor processor) { |
| GRPC_API_TRACE( |
| "grpc_server_credentials_set_auth_metadata_processor(" |
| "creds=%p, " |
| "processor=grpc_auth_metadata_processor { process: %p, state: %p })", |
| 3, (creds, (void *)(intptr_t)processor.process, processor.state)); |
| if (creds == NULL) return; |
| if (creds->processor.destroy != NULL && creds->processor.state != NULL) { |
| creds->processor.destroy(creds->processor.state); |
| } |
| creds->processor = processor; |
| } |
| |
| static void server_credentials_pointer_arg_destroy(void *p) { |
| grpc_server_credentials_unref(p); |
| } |
| |
| static void *server_credentials_pointer_arg_copy(void *p) { |
| return grpc_server_credentials_ref(p); |
| } |
| |
| static int server_credentials_pointer_cmp(void *a, void *b) { |
| return GPR_ICMP(a, b); |
| } |
| |
| static const grpc_arg_pointer_vtable cred_ptr_vtable = { |
| server_credentials_pointer_arg_copy, server_credentials_pointer_arg_destroy, |
| server_credentials_pointer_cmp}; |
| |
| grpc_arg grpc_server_credentials_to_arg(grpc_server_credentials *p) { |
| grpc_arg arg; |
| memset(&arg, 0, sizeof(grpc_arg)); |
| arg.type = GRPC_ARG_POINTER; |
| arg.key = GRPC_SERVER_CREDENTIALS_ARG; |
| arg.value.pointer.p = p; |
| arg.value.pointer.vtable = &cred_ptr_vtable; |
| return arg; |
| } |
| |
| grpc_server_credentials *grpc_server_credentials_from_arg(const grpc_arg *arg) { |
| if (strcmp(arg->key, GRPC_SERVER_CREDENTIALS_ARG) != 0) return NULL; |
| if (arg->type != GRPC_ARG_POINTER) { |
| gpr_log(GPR_ERROR, "Invalid type %d for arg %s", arg->type, |
| GRPC_SERVER_CREDENTIALS_ARG); |
| return NULL; |
| } |
| return arg->value.pointer.p; |
| } |
| |
| grpc_server_credentials *grpc_find_server_credentials_in_args( |
| const grpc_channel_args *args) { |
| size_t i; |
| if (args == NULL) return NULL; |
| for (i = 0; i < args->num_args; i++) { |
| grpc_server_credentials *p = |
| grpc_server_credentials_from_arg(&args->args[i]); |
| if (p != NULL) return p; |
| } |
| return NULL; |
| } |