diff options
Diffstat (limited to 'src/core/lib/security')
41 files changed, 2351 insertions, 1636 deletions
diff --git a/src/core/lib/security/security_context.c b/src/core/lib/security/context/security_context.c index 343e0b5b8b..127b13ee50 100644 --- a/src/core/lib/security/security_context.c +++ b/src/core/lib/security/context/security_context.c @@ -33,7 +33,7 @@ #include <string.h> -#include "src/core/lib/security/security_context.h" +#include "src/core/lib/security/context/security_context.h" #include "src/core/lib/support/string.h" #include "src/core/lib/surface/api_trace.h" #include "src/core/lib/surface/call.h" diff --git a/src/core/lib/security/security_context.h b/src/core/lib/security/context/security_context.h index 81161ec47d..ef0c06b1fb 100644 --- a/src/core/lib/security/security_context.h +++ b/src/core/lib/security/context/security_context.h @@ -31,11 +31,11 @@ * */ -#ifndef GRPC_CORE_LIB_SECURITY_SECURITY_CONTEXT_H -#define GRPC_CORE_LIB_SECURITY_SECURITY_CONTEXT_H +#ifndef GRPC_CORE_LIB_SECURITY_CONTEXT_SECURITY_CONTEXT_H +#define GRPC_CORE_LIB_SECURITY_CONTEXT_SECURITY_CONTEXT_H #include "src/core/lib/iomgr/pollset.h" -#include "src/core/lib/security/credentials.h" +#include "src/core/lib/security/credentials/credentials.h" /* --- grpc_auth_context --- @@ -111,4 +111,4 @@ grpc_auth_context *grpc_auth_context_from_arg(const grpc_arg *arg); grpc_auth_context *grpc_find_auth_context_in_args( const grpc_channel_args *args); -#endif /* GRPC_CORE_LIB_SECURITY_SECURITY_CONTEXT_H */ +#endif /* GRPC_CORE_LIB_SECURITY_CONTEXT_SECURITY_CONTEXT_H */ diff --git a/src/core/lib/security/credentials.c b/src/core/lib/security/credentials.c deleted file mode 100644 index fd5ad3589b..0000000000 --- a/src/core/lib/security/credentials.c +++ /dev/null @@ -1,1296 +0,0 @@ -/* - * - * 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.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. -- */ - -struct grpc_credentials_metadata_request { - grpc_call_credentials *creds; - grpc_credentials_metadata_cb cb; - void *user_data; -}; - -static 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; -} - -static 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_pollset *pollset, 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, pollset, 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; -} - -/* -- Ssl credentials. -- */ - -static void ssl_destruct(grpc_channel_credentials *creds) { - grpc_ssl_credentials *c = (grpc_ssl_credentials *)creds; - if (c->config.pem_root_certs != NULL) gpr_free(c->config.pem_root_certs); - if (c->config.pem_private_key != NULL) gpr_free(c->config.pem_private_key); - if (c->config.pem_cert_chain != NULL) gpr_free(c->config.pem_cert_chain); -} - -static void ssl_server_destruct(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++) { - if (c->config.pem_private_keys[i] != NULL) { - gpr_free(c->config.pem_private_keys[i]); - } - if (c->config.pem_cert_chains[i] != NULL) { - gpr_free(c->config.pem_cert_chains[i]); - } - } - if (c->config.pem_private_keys != NULL) gpr_free(c->config.pem_private_keys); - if (c->config.pem_private_keys_sizes != NULL) { - gpr_free(c->config.pem_private_keys_sizes); - } - if (c->config.pem_cert_chains != NULL) gpr_free(c->config.pem_cert_chains); - if (c->config.pem_cert_chains_sizes != NULL) { - gpr_free(c->config.pem_cert_chains_sizes); - } - if (c->config.pem_root_certs != NULL) gpr_free(c->config.pem_root_certs); -} - -static grpc_security_status ssl_create_security_connector( - 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; - size_t i = 0; - const char *overridden_target_name = NULL; - grpc_arg new_arg; - - for (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( - call_creds, &c->config, target, overridden_target_name, sc); - if (status != GRPC_SECURITY_OK) { - return status; - } - new_arg.type = GRPC_ARG_STRING; - new_arg.key = GRPC_ARG_HTTP2_SCHEME; - new_arg.value.string = "https"; - *new_args = grpc_channel_args_copy_and_add(args, &new_arg, 1); - return status; -} - -static grpc_security_status ssl_server_create_security_connector( - 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(&c->config, sc); -} - -static grpc_channel_credentials_vtable ssl_vtable = { - ssl_destruct, ssl_create_security_connector}; - -static grpc_server_credentials_vtable ssl_server_vtable = { - ssl_server_destruct, ssl_server_create_security_connector}; - -static void ssl_copy_key_material(const char *input, unsigned char **output, - size_t *output_size) { - *output_size = strlen(input); - *output = gpr_malloc(*output_size); - memcpy(*output, input, *output_size); -} - -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) { - ssl_copy_key_material(pem_root_certs, &config->pem_root_certs, - &config->pem_root_certs_size); - } - if (pem_key_cert_pair != NULL) { - GPR_ASSERT(pem_key_cert_pair->private_key != NULL); - GPR_ASSERT(pem_key_cert_pair->cert_chain != NULL); - ssl_copy_key_material(pem_key_cert_pair->private_key, - &config->pem_private_key, - &config->pem_private_key_size); - ssl_copy_key_material(pem_key_cert_pair->cert_chain, - &config->pem_cert_chain, - &config->pem_cert_chain_size); - } -} - -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) { - ssl_copy_key_material(pem_root_certs, &config->pem_root_certs, - &config->pem_root_certs_size); - } - if (num_key_cert_pairs > 0) { - GPR_ASSERT(pem_key_cert_pairs != NULL); - config->pem_private_keys = - gpr_malloc(num_key_cert_pairs * sizeof(unsigned char *)); - config->pem_cert_chains = - gpr_malloc(num_key_cert_pairs * sizeof(unsigned char *)); - config->pem_private_keys_sizes = - gpr_malloc(num_key_cert_pairs * sizeof(size_t)); - config->pem_cert_chains_sizes = - gpr_malloc(num_key_cert_pairs * sizeof(size_t)); - } - 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); - ssl_copy_key_material(pem_key_cert_pairs[i].private_key, - &config->pem_private_keys[i], - &config->pem_private_keys_sizes[i]); - ssl_copy_key_material(pem_key_cert_pairs[i].cert_chain, - &config->pem_cert_chains[i], - &config->pem_cert_chains_sizes[i]); - } -} - -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 = gpr_malloc(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); - memset(c, 0, sizeof(grpc_ssl_credentials)); - 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; -} - -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 = - gpr_malloc(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); - memset(c, 0, sizeof(grpc_ssl_server_credentials)); - 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; -} - -/* -- Jwt credentials -- */ - -static void jwt_reset_cache(grpc_service_account_jwt_access_credentials *c) { - if (c->cached.jwt_md != NULL) { - grpc_credentials_md_store_unref(c->cached.jwt_md); - c->cached.jwt_md = NULL; - } - if (c->cached.service_url != NULL) { - gpr_free(c->cached.service_url); - c->cached.service_url = NULL; - } - c->cached.jwt_expiration = gpr_inf_past(GPR_CLOCK_REALTIME); -} - -static void jwt_destruct(grpc_call_credentials *creds) { - grpc_service_account_jwt_access_credentials *c = - (grpc_service_account_jwt_access_credentials *)creds; - grpc_auth_json_key_destruct(&c->key); - jwt_reset_cache(c); - gpr_mu_destroy(&c->cache_mu); -} - -static void jwt_get_request_metadata(grpc_exec_ctx *exec_ctx, - grpc_call_credentials *creds, - grpc_pollset *pollset, - grpc_auth_metadata_context context, - grpc_credentials_metadata_cb cb, - void *user_data) { - grpc_service_account_jwt_access_credentials *c = - (grpc_service_account_jwt_access_credentials *)creds; - gpr_timespec refresh_threshold = gpr_time_from_seconds( - GRPC_SECURE_TOKEN_REFRESH_THRESHOLD_SECS, GPR_TIMESPAN); - - /* See if we can return a cached jwt. */ - grpc_credentials_md_store *jwt_md = NULL; - { - gpr_mu_lock(&c->cache_mu); - if (c->cached.service_url != NULL && - strcmp(c->cached.service_url, context.service_url) == 0 && - c->cached.jwt_md != NULL && - (gpr_time_cmp(gpr_time_sub(c->cached.jwt_expiration, - gpr_now(GPR_CLOCK_REALTIME)), - refresh_threshold) > 0)) { - jwt_md = grpc_credentials_md_store_ref(c->cached.jwt_md); - } - gpr_mu_unlock(&c->cache_mu); - } - - if (jwt_md == NULL) { - char *jwt = NULL; - /* Generate a new jwt. */ - gpr_mu_lock(&c->cache_mu); - jwt_reset_cache(c); - jwt = grpc_jwt_encode_and_sign(&c->key, context.service_url, - c->jwt_lifetime, NULL); - if (jwt != NULL) { - char *md_value; - gpr_asprintf(&md_value, "Bearer %s", jwt); - gpr_free(jwt); - c->cached.jwt_expiration = - gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), c->jwt_lifetime); - c->cached.service_url = gpr_strdup(context.service_url); - c->cached.jwt_md = grpc_credentials_md_store_create(1); - grpc_credentials_md_store_add_cstrings( - c->cached.jwt_md, GRPC_AUTHORIZATION_METADATA_KEY, md_value); - gpr_free(md_value); - jwt_md = grpc_credentials_md_store_ref(c->cached.jwt_md); - } - gpr_mu_unlock(&c->cache_mu); - } - - if (jwt_md != NULL) { - cb(exec_ctx, user_data, jwt_md->entries, jwt_md->num_entries, - GRPC_CREDENTIALS_OK); - grpc_credentials_md_store_unref(jwt_md); - } else { - cb(exec_ctx, user_data, NULL, 0, GRPC_CREDENTIALS_ERROR); - } -} - -static grpc_call_credentials_vtable jwt_vtable = {jwt_destruct, - jwt_get_request_metadata}; - -grpc_call_credentials * -grpc_service_account_jwt_access_credentials_create_from_auth_json_key( - grpc_auth_json_key key, gpr_timespec token_lifetime) { - grpc_service_account_jwt_access_credentials *c; - if (!grpc_auth_json_key_is_valid(&key)) { - gpr_log(GPR_ERROR, "Invalid input for jwt credentials creation"); - return NULL; - } - c = gpr_malloc(sizeof(grpc_service_account_jwt_access_credentials)); - memset(c, 0, sizeof(grpc_service_account_jwt_access_credentials)); - c->base.type = GRPC_CALL_CREDENTIALS_TYPE_JWT; - gpr_ref_init(&c->base.refcount, 1); - c->base.vtable = &jwt_vtable; - c->key = key; - c->jwt_lifetime = token_lifetime; - gpr_mu_init(&c->cache_mu); - jwt_reset_cache(c); - return &c->base; -} - -grpc_call_credentials *grpc_service_account_jwt_access_credentials_create( - const char *json_key, gpr_timespec token_lifetime, void *reserved) { - GRPC_API_TRACE( - "grpc_service_account_jwt_access_credentials_create(" - "json_key=%s, " - "token_lifetime=" - "gpr_timespec { tv_sec: %lld, tv_nsec: %d, clock_type: %d }, " - "reserved=%p)", - 5, - (json_key, (long long)token_lifetime.tv_sec, (int)token_lifetime.tv_nsec, - (int)token_lifetime.clock_type, reserved)); - GPR_ASSERT(reserved == NULL); - return grpc_service_account_jwt_access_credentials_create_from_auth_json_key( - grpc_auth_json_key_create_from_string(json_key), token_lifetime); -} - -/* -- Oauth2TokenFetcher credentials -- */ - -static void oauth2_token_fetcher_destruct(grpc_call_credentials *creds) { - grpc_oauth2_token_fetcher_credentials *c = - (grpc_oauth2_token_fetcher_credentials *)creds; - grpc_credentials_md_store_unref(c->access_token_md); - gpr_mu_destroy(&c->mu); - grpc_httpcli_context_destroy(&c->httpcli_context); -} - -grpc_credentials_status -grpc_oauth2_token_fetcher_credentials_parse_server_response( - const grpc_http_response *response, grpc_credentials_md_store **token_md, - gpr_timespec *token_lifetime) { - char *null_terminated_body = NULL; - char *new_access_token = NULL; - grpc_credentials_status status = GRPC_CREDENTIALS_OK; - grpc_json *json = NULL; - - if (response == NULL) { - gpr_log(GPR_ERROR, "Received NULL response."); - status = GRPC_CREDENTIALS_ERROR; - goto end; - } - - if (response->body_length > 0) { - null_terminated_body = gpr_malloc(response->body_length + 1); - null_terminated_body[response->body_length] = '\0'; - memcpy(null_terminated_body, response->body, response->body_length); - } - - if (response->status != 200) { - gpr_log(GPR_ERROR, "Call to http server ended with error %d [%s].", - response->status, - null_terminated_body != NULL ? null_terminated_body : ""); - status = GRPC_CREDENTIALS_ERROR; - goto end; - } else { - grpc_json *access_token = NULL; - grpc_json *token_type = NULL; - grpc_json *expires_in = NULL; - grpc_json *ptr; - json = grpc_json_parse_string(null_terminated_body); - if (json == NULL) { - gpr_log(GPR_ERROR, "Could not parse JSON from %s", null_terminated_body); - status = GRPC_CREDENTIALS_ERROR; - goto end; - } - if (json->type != GRPC_JSON_OBJECT) { - gpr_log(GPR_ERROR, "Response should be a JSON object"); - status = GRPC_CREDENTIALS_ERROR; - goto end; - } - for (ptr = json->child; ptr; ptr = ptr->next) { - if (strcmp(ptr->key, "access_token") == 0) { - access_token = ptr; - } else if (strcmp(ptr->key, "token_type") == 0) { - token_type = ptr; - } else if (strcmp(ptr->key, "expires_in") == 0) { - expires_in = ptr; - } - } - if (access_token == NULL || access_token->type != GRPC_JSON_STRING) { - gpr_log(GPR_ERROR, "Missing or invalid access_token in JSON."); - status = GRPC_CREDENTIALS_ERROR; - goto end; - } - if (token_type == NULL || token_type->type != GRPC_JSON_STRING) { - gpr_log(GPR_ERROR, "Missing or invalid token_type in JSON."); - status = GRPC_CREDENTIALS_ERROR; - goto end; - } - if (expires_in == NULL || expires_in->type != GRPC_JSON_NUMBER) { - gpr_log(GPR_ERROR, "Missing or invalid expires_in in JSON."); - status = GRPC_CREDENTIALS_ERROR; - goto end; - } - gpr_asprintf(&new_access_token, "%s %s", token_type->value, - access_token->value); - token_lifetime->tv_sec = strtol(expires_in->value, NULL, 10); - token_lifetime->tv_nsec = 0; - token_lifetime->clock_type = GPR_TIMESPAN; - if (*token_md != NULL) grpc_credentials_md_store_unref(*token_md); - *token_md = grpc_credentials_md_store_create(1); - grpc_credentials_md_store_add_cstrings( - *token_md, GRPC_AUTHORIZATION_METADATA_KEY, new_access_token); - status = GRPC_CREDENTIALS_OK; - } - -end: - if (status != GRPC_CREDENTIALS_OK && (*token_md != NULL)) { - grpc_credentials_md_store_unref(*token_md); - *token_md = NULL; - } - if (null_terminated_body != NULL) gpr_free(null_terminated_body); - if (new_access_token != NULL) gpr_free(new_access_token); - if (json != NULL) grpc_json_destroy(json); - return status; -} - -static void on_oauth2_token_fetcher_http_response( - grpc_exec_ctx *exec_ctx, void *user_data, - const grpc_http_response *response) { - grpc_credentials_metadata_request *r = - (grpc_credentials_metadata_request *)user_data; - grpc_oauth2_token_fetcher_credentials *c = - (grpc_oauth2_token_fetcher_credentials *)r->creds; - gpr_timespec token_lifetime; - grpc_credentials_status status; - - gpr_mu_lock(&c->mu); - status = grpc_oauth2_token_fetcher_credentials_parse_server_response( - response, &c->access_token_md, &token_lifetime); - if (status == GRPC_CREDENTIALS_OK) { - c->token_expiration = - gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), token_lifetime); - r->cb(exec_ctx, r->user_data, c->access_token_md->entries, - c->access_token_md->num_entries, status); - } else { - c->token_expiration = gpr_inf_past(GPR_CLOCK_REALTIME); - r->cb(exec_ctx, r->user_data, NULL, 0, status); - } - gpr_mu_unlock(&c->mu); - grpc_credentials_metadata_request_destroy(r); -} - -static void oauth2_token_fetcher_get_request_metadata( - grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, - grpc_pollset *pollset, grpc_auth_metadata_context context, - grpc_credentials_metadata_cb cb, void *user_data) { - grpc_oauth2_token_fetcher_credentials *c = - (grpc_oauth2_token_fetcher_credentials *)creds; - gpr_timespec refresh_threshold = gpr_time_from_seconds( - GRPC_SECURE_TOKEN_REFRESH_THRESHOLD_SECS, GPR_TIMESPAN); - grpc_credentials_md_store *cached_access_token_md = NULL; - { - gpr_mu_lock(&c->mu); - if (c->access_token_md != NULL && - (gpr_time_cmp( - gpr_time_sub(c->token_expiration, gpr_now(GPR_CLOCK_REALTIME)), - refresh_threshold) > 0)) { - cached_access_token_md = - grpc_credentials_md_store_ref(c->access_token_md); - } - gpr_mu_unlock(&c->mu); - } - if (cached_access_token_md != NULL) { - cb(exec_ctx, user_data, cached_access_token_md->entries, - cached_access_token_md->num_entries, GRPC_CREDENTIALS_OK); - grpc_credentials_md_store_unref(cached_access_token_md); - } else { - c->fetch_func( - exec_ctx, - grpc_credentials_metadata_request_create(creds, cb, user_data), - &c->httpcli_context, pollset, on_oauth2_token_fetcher_http_response, - gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), refresh_threshold)); - } -} - -static void init_oauth2_token_fetcher(grpc_oauth2_token_fetcher_credentials *c, - grpc_fetch_oauth2_func fetch_func) { - memset(c, 0, sizeof(grpc_oauth2_token_fetcher_credentials)); - c->base.type = GRPC_CALL_CREDENTIALS_TYPE_OAUTH2; - gpr_ref_init(&c->base.refcount, 1); - gpr_mu_init(&c->mu); - c->token_expiration = gpr_inf_past(GPR_CLOCK_REALTIME); - c->fetch_func = fetch_func; - grpc_httpcli_context_init(&c->httpcli_context); -} - -/* -- GoogleComputeEngine credentials. -- */ - -static grpc_call_credentials_vtable compute_engine_vtable = { - oauth2_token_fetcher_destruct, oauth2_token_fetcher_get_request_metadata}; - -static void compute_engine_fetch_oauth2( - grpc_exec_ctx *exec_ctx, grpc_credentials_metadata_request *metadata_req, - grpc_httpcli_context *httpcli_context, grpc_pollset *pollset, - grpc_httpcli_response_cb response_cb, gpr_timespec deadline) { - grpc_http_header header = {"Metadata-Flavor", "Google"}; - grpc_httpcli_request request; - memset(&request, 0, sizeof(grpc_httpcli_request)); - request.host = GRPC_COMPUTE_ENGINE_METADATA_HOST; - request.http.path = GRPC_COMPUTE_ENGINE_METADATA_TOKEN_PATH; - request.http.hdr_count = 1; - request.http.hdrs = &header; - grpc_httpcli_get(exec_ctx, httpcli_context, pollset, &request, deadline, - response_cb, metadata_req); -} - -grpc_call_credentials *grpc_google_compute_engine_credentials_create( - void *reserved) { - grpc_oauth2_token_fetcher_credentials *c = - gpr_malloc(sizeof(grpc_oauth2_token_fetcher_credentials)); - GRPC_API_TRACE("grpc_compute_engine_credentials_create(reserved=%p)", 1, - (reserved)); - GPR_ASSERT(reserved == NULL); - init_oauth2_token_fetcher(c, compute_engine_fetch_oauth2); - c->base.vtable = &compute_engine_vtable; - return &c->base; -} - -/* -- GoogleRefreshToken credentials. -- */ - -static void refresh_token_destruct(grpc_call_credentials *creds) { - grpc_google_refresh_token_credentials *c = - (grpc_google_refresh_token_credentials *)creds; - grpc_auth_refresh_token_destruct(&c->refresh_token); - oauth2_token_fetcher_destruct(&c->base.base); -} - -static grpc_call_credentials_vtable refresh_token_vtable = { - refresh_token_destruct, oauth2_token_fetcher_get_request_metadata}; - -static void refresh_token_fetch_oauth2( - grpc_exec_ctx *exec_ctx, grpc_credentials_metadata_request *metadata_req, - grpc_httpcli_context *httpcli_context, grpc_pollset *pollset, - grpc_httpcli_response_cb response_cb, gpr_timespec deadline) { - grpc_google_refresh_token_credentials *c = - (grpc_google_refresh_token_credentials *)metadata_req->creds; - grpc_http_header header = {"Content-Type", - "application/x-www-form-urlencoded"}; - grpc_httpcli_request request; - char *body = NULL; - gpr_asprintf(&body, GRPC_REFRESH_TOKEN_POST_BODY_FORMAT_STRING, - c->refresh_token.client_id, c->refresh_token.client_secret, - c->refresh_token.refresh_token); - memset(&request, 0, sizeof(grpc_httpcli_request)); - request.host = GRPC_GOOGLE_OAUTH2_SERVICE_HOST; - request.http.path = GRPC_GOOGLE_OAUTH2_SERVICE_TOKEN_PATH; - request.http.hdr_count = 1; - request.http.hdrs = &header; - request.handshaker = &grpc_httpcli_ssl; - grpc_httpcli_post(exec_ctx, httpcli_context, pollset, &request, body, - strlen(body), deadline, response_cb, metadata_req); - gpr_free(body); -} - -grpc_call_credentials * -grpc_refresh_token_credentials_create_from_auth_refresh_token( - grpc_auth_refresh_token refresh_token) { - grpc_google_refresh_token_credentials *c; - if (!grpc_auth_refresh_token_is_valid(&refresh_token)) { - gpr_log(GPR_ERROR, "Invalid input for refresh token credentials creation"); - return NULL; - } - c = gpr_malloc(sizeof(grpc_google_refresh_token_credentials)); - memset(c, 0, sizeof(grpc_google_refresh_token_credentials)); - init_oauth2_token_fetcher(&c->base, refresh_token_fetch_oauth2); - c->base.base.vtable = &refresh_token_vtable; - c->refresh_token = refresh_token; - return &c->base.base; -} - -grpc_call_credentials *grpc_google_refresh_token_credentials_create( - const char *json_refresh_token, void *reserved) { - GRPC_API_TRACE( - "grpc_refresh_token_credentials_create(json_refresh_token=%s, " - "reserved=%p)", - 2, (json_refresh_token, reserved)); - GPR_ASSERT(reserved == NULL); - return grpc_refresh_token_credentials_create_from_auth_refresh_token( - grpc_auth_refresh_token_create_from_string(json_refresh_token)); -} - -/* -- Metadata-only credentials. -- */ - -static void md_only_test_destruct(grpc_call_credentials *creds) { - grpc_md_only_test_credentials *c = (grpc_md_only_test_credentials *)creds; - grpc_credentials_md_store_unref(c->md_store); -} - -static void on_simulated_token_fetch_done(grpc_exec_ctx *exec_ctx, - void *user_data, bool success) { - grpc_credentials_metadata_request *r = - (grpc_credentials_metadata_request *)user_data; - grpc_md_only_test_credentials *c = (grpc_md_only_test_credentials *)r->creds; - r->cb(exec_ctx, r->user_data, c->md_store->entries, c->md_store->num_entries, - GRPC_CREDENTIALS_OK); - grpc_credentials_metadata_request_destroy(r); -} - -static void md_only_test_get_request_metadata( - grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, - grpc_pollset *pollset, grpc_auth_metadata_context context, - grpc_credentials_metadata_cb cb, void *user_data) { - grpc_md_only_test_credentials *c = (grpc_md_only_test_credentials *)creds; - - if (c->is_async) { - grpc_credentials_metadata_request *cb_arg = - grpc_credentials_metadata_request_create(creds, cb, user_data); - grpc_executor_enqueue( - grpc_closure_create(on_simulated_token_fetch_done, cb_arg), true); - } else { - cb(exec_ctx, user_data, c->md_store->entries, 1, GRPC_CREDENTIALS_OK); - } -} - -static grpc_call_credentials_vtable md_only_test_vtable = { - md_only_test_destruct, md_only_test_get_request_metadata}; - -grpc_call_credentials *grpc_md_only_test_credentials_create( - const char *md_key, const char *md_value, int is_async) { - grpc_md_only_test_credentials *c = - gpr_malloc(sizeof(grpc_md_only_test_credentials)); - memset(c, 0, sizeof(grpc_md_only_test_credentials)); - c->base.type = GRPC_CALL_CREDENTIALS_TYPE_OAUTH2; - c->base.vtable = &md_only_test_vtable; - gpr_ref_init(&c->base.refcount, 1); - c->md_store = grpc_credentials_md_store_create(1); - grpc_credentials_md_store_add_cstrings(c->md_store, md_key, md_value); - c->is_async = is_async; - return &c->base; -} - -/* -- Oauth2 Access Token credentials. -- */ - -static void access_token_destruct(grpc_call_credentials *creds) { - grpc_access_token_credentials *c = (grpc_access_token_credentials *)creds; - grpc_credentials_md_store_unref(c->access_token_md); -} - -static void access_token_get_request_metadata( - grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, - grpc_pollset *pollset, grpc_auth_metadata_context context, - grpc_credentials_metadata_cb cb, void *user_data) { - grpc_access_token_credentials *c = (grpc_access_token_credentials *)creds; - cb(exec_ctx, user_data, c->access_token_md->entries, 1, GRPC_CREDENTIALS_OK); -} - -static grpc_call_credentials_vtable access_token_vtable = { - access_token_destruct, access_token_get_request_metadata}; - -grpc_call_credentials *grpc_access_token_credentials_create( - const char *access_token, void *reserved) { - grpc_access_token_credentials *c = - gpr_malloc(sizeof(grpc_access_token_credentials)); - char *token_md_value; - GRPC_API_TRACE( - "grpc_access_token_credentials_create(access_token=%s, " - "reserved=%p)", - 2, (access_token, reserved)); - GPR_ASSERT(reserved == NULL); - memset(c, 0, sizeof(grpc_access_token_credentials)); - c->base.type = GRPC_CALL_CREDENTIALS_TYPE_OAUTH2; - c->base.vtable = &access_token_vtable; - gpr_ref_init(&c->base.refcount, 1); - c->access_token_md = grpc_credentials_md_store_create(1); - gpr_asprintf(&token_md_value, "Bearer %s", access_token); - grpc_credentials_md_store_add_cstrings( - c->access_token_md, GRPC_AUTHORIZATION_METADATA_KEY, token_md_value); - gpr_free(token_md_value); - return &c->base; -} - -/* -- Fake transport security credentials. -- */ - -static grpc_security_status fake_transport_security_create_security_connector( - grpc_channel_credentials *c, grpc_call_credentials *call_creds, - const char *target, const grpc_channel_args *args, - grpc_channel_security_connector **sc, grpc_channel_args **new_args) { - *sc = grpc_fake_channel_security_connector_create(call_creds); - return GRPC_SECURITY_OK; -} - -static grpc_security_status -fake_transport_security_server_create_security_connector( - grpc_server_credentials *c, grpc_server_security_connector **sc) { - *sc = grpc_fake_server_security_connector_create(); - return GRPC_SECURITY_OK; -} - -static grpc_channel_credentials_vtable - fake_transport_security_credentials_vtable = { - NULL, fake_transport_security_create_security_connector}; - -static grpc_server_credentials_vtable - fake_transport_security_server_credentials_vtable = { - NULL, fake_transport_security_server_create_security_connector}; - -grpc_channel_credentials *grpc_fake_transport_security_credentials_create( - void) { - grpc_channel_credentials *c = gpr_malloc(sizeof(grpc_channel_credentials)); - memset(c, 0, sizeof(grpc_channel_credentials)); - c->type = GRPC_CHANNEL_CREDENTIALS_TYPE_FAKE_TRANSPORT_SECURITY; - c->vtable = &fake_transport_security_credentials_vtable; - gpr_ref_init(&c->refcount, 1); - return c; -} - -grpc_server_credentials *grpc_fake_transport_security_server_credentials_create( - void) { - grpc_server_credentials *c = gpr_malloc(sizeof(grpc_server_credentials)); - memset(c, 0, sizeof(grpc_server_credentials)); - c->type = GRPC_CHANNEL_CREDENTIALS_TYPE_FAKE_TRANSPORT_SECURITY; - gpr_ref_init(&c->refcount, 1); - c->vtable = &fake_transport_security_server_credentials_vtable; - return c; -} - -/* -- Composite call credentials. -- */ - -typedef struct { - grpc_composite_call_credentials *composite_creds; - size_t creds_index; - grpc_credentials_md_store *md_elems; - grpc_auth_metadata_context auth_md_context; - void *user_data; - grpc_pollset *pollset; - grpc_credentials_metadata_cb cb; -} grpc_composite_call_credentials_metadata_context; - -static void composite_call_destruct(grpc_call_credentials *creds) { - grpc_composite_call_credentials *c = (grpc_composite_call_credentials *)creds; - size_t i; - for (i = 0; i < c->inner.num_creds; i++) { - grpc_call_credentials_unref(c->inner.creds_array[i]); - } - gpr_free(c->inner.creds_array); -} - -static void composite_call_md_context_destroy( - grpc_composite_call_credentials_metadata_context *ctx) { - grpc_credentials_md_store_unref(ctx->md_elems); - gpr_free(ctx); -} - -static void composite_call_metadata_cb(grpc_exec_ctx *exec_ctx, void *user_data, - grpc_credentials_md *md_elems, - size_t num_md, - grpc_credentials_status status) { - grpc_composite_call_credentials_metadata_context *ctx = - (grpc_composite_call_credentials_metadata_context *)user_data; - if (status != GRPC_CREDENTIALS_OK) { - ctx->cb(exec_ctx, ctx->user_data, NULL, 0, status); - return; - } - - /* Copy the metadata in the context. */ - if (num_md > 0) { - size_t i; - for (i = 0; i < num_md; i++) { - grpc_credentials_md_store_add(ctx->md_elems, md_elems[i].key, - md_elems[i].value); - } - } - - /* See if we need to get some more metadata. */ - if (ctx->creds_index < ctx->composite_creds->inner.num_creds) { - grpc_call_credentials *inner_creds = - ctx->composite_creds->inner.creds_array[ctx->creds_index++]; - grpc_call_credentials_get_request_metadata( - exec_ctx, inner_creds, ctx->pollset, ctx->auth_md_context, - composite_call_metadata_cb, ctx); - return; - } - - /* We're done!. */ - ctx->cb(exec_ctx, ctx->user_data, ctx->md_elems->entries, - ctx->md_elems->num_entries, GRPC_CREDENTIALS_OK); - composite_call_md_context_destroy(ctx); -} - -static void composite_call_get_request_metadata( - grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, - grpc_pollset *pollset, grpc_auth_metadata_context auth_md_context, - grpc_credentials_metadata_cb cb, void *user_data) { - grpc_composite_call_credentials *c = (grpc_composite_call_credentials *)creds; - grpc_composite_call_credentials_metadata_context *ctx; - - ctx = gpr_malloc(sizeof(grpc_composite_call_credentials_metadata_context)); - memset(ctx, 0, sizeof(grpc_composite_call_credentials_metadata_context)); - ctx->auth_md_context = auth_md_context; - ctx->user_data = user_data; - ctx->cb = cb; - ctx->composite_creds = c; - ctx->pollset = pollset; - ctx->md_elems = grpc_credentials_md_store_create(c->inner.num_creds); - grpc_call_credentials_get_request_metadata( - exec_ctx, c->inner.creds_array[ctx->creds_index++], pollset, - auth_md_context, composite_call_metadata_cb, ctx); -} - -static grpc_call_credentials_vtable composite_call_credentials_vtable = { - composite_call_destruct, composite_call_get_request_metadata}; - -static grpc_call_credentials_array get_creds_array( - grpc_call_credentials **creds_addr) { - grpc_call_credentials_array result; - grpc_call_credentials *creds = *creds_addr; - result.creds_array = creds_addr; - result.num_creds = 1; - if (strcmp(creds->type, GRPC_CALL_CREDENTIALS_TYPE_COMPOSITE) == 0) { - result = *grpc_composite_call_credentials_get_credentials(creds); - } - return result; -} - -grpc_call_credentials *grpc_composite_call_credentials_create( - grpc_call_credentials *creds1, grpc_call_credentials *creds2, - void *reserved) { - size_t i; - size_t creds_array_byte_size; - grpc_call_credentials_array creds1_array; - grpc_call_credentials_array creds2_array; - grpc_composite_call_credentials *c; - GRPC_API_TRACE( - "grpc_composite_call_credentials_create(creds1=%p, creds2=%p, " - "reserved=%p)", - 3, (creds1, creds2, reserved)); - GPR_ASSERT(reserved == NULL); - GPR_ASSERT(creds1 != NULL); - GPR_ASSERT(creds2 != NULL); - c = gpr_malloc(sizeof(grpc_composite_call_credentials)); - memset(c, 0, sizeof(grpc_composite_call_credentials)); - c->base.type = GRPC_CALL_CREDENTIALS_TYPE_COMPOSITE; - c->base.vtable = &composite_call_credentials_vtable; - gpr_ref_init(&c->base.refcount, 1); - creds1_array = get_creds_array(&creds1); - creds2_array = get_creds_array(&creds2); - c->inner.num_creds = creds1_array.num_creds + creds2_array.num_creds; - creds_array_byte_size = c->inner.num_creds * sizeof(grpc_call_credentials *); - c->inner.creds_array = gpr_malloc(creds_array_byte_size); - memset(c->inner.creds_array, 0, creds_array_byte_size); - for (i = 0; i < creds1_array.num_creds; i++) { - grpc_call_credentials *cur_creds = creds1_array.creds_array[i]; - c->inner.creds_array[i] = grpc_call_credentials_ref(cur_creds); - } - for (i = 0; i < creds2_array.num_creds; i++) { - grpc_call_credentials *cur_creds = creds2_array.creds_array[i]; - c->inner.creds_array[i + creds1_array.num_creds] = - grpc_call_credentials_ref(cur_creds); - } - return &c->base; -} - -const grpc_call_credentials_array * -grpc_composite_call_credentials_get_credentials(grpc_call_credentials *creds) { - const grpc_composite_call_credentials *c = - (const grpc_composite_call_credentials *)creds; - GPR_ASSERT(strcmp(creds->type, GRPC_CALL_CREDENTIALS_TYPE_COMPOSITE) == 0); - return &c->inner; -} - -grpc_call_credentials *grpc_credentials_contains_type( - grpc_call_credentials *creds, const char *type, - grpc_call_credentials **composite_creds) { - size_t i; - if (strcmp(creds->type, type) == 0) { - if (composite_creds != NULL) *composite_creds = NULL; - return creds; - } else if (strcmp(creds->type, GRPC_CALL_CREDENTIALS_TYPE_COMPOSITE) == 0) { - const grpc_call_credentials_array *inner_creds_array = - grpc_composite_call_credentials_get_credentials(creds); - for (i = 0; i < inner_creds_array->num_creds; i++) { - if (strcmp(type, inner_creds_array->creds_array[i]->type) == 0) { - if (composite_creds != NULL) *composite_creds = creds; - return inner_creds_array->creds_array[i]; - } - } - } - return NULL; -} - -/* -- IAM credentials. -- */ - -static void iam_destruct(grpc_call_credentials *creds) { - grpc_google_iam_credentials *c = (grpc_google_iam_credentials *)creds; - grpc_credentials_md_store_unref(c->iam_md); -} - -static void iam_get_request_metadata(grpc_exec_ctx *exec_ctx, - grpc_call_credentials *creds, - grpc_pollset *pollset, - grpc_auth_metadata_context context, - grpc_credentials_metadata_cb cb, - void *user_data) { - grpc_google_iam_credentials *c = (grpc_google_iam_credentials *)creds; - cb(exec_ctx, user_data, c->iam_md->entries, c->iam_md->num_entries, - GRPC_CREDENTIALS_OK); -} - -static grpc_call_credentials_vtable iam_vtable = {iam_destruct, - iam_get_request_metadata}; - -grpc_call_credentials *grpc_google_iam_credentials_create( - const char *token, const char *authority_selector, void *reserved) { - grpc_google_iam_credentials *c; - GRPC_API_TRACE( - "grpc_iam_credentials_create(token=%s, authority_selector=%s, " - "reserved=%p)", - 3, (token, authority_selector, reserved)); - GPR_ASSERT(reserved == NULL); - GPR_ASSERT(token != NULL); - GPR_ASSERT(authority_selector != NULL); - c = gpr_malloc(sizeof(grpc_google_iam_credentials)); - memset(c, 0, sizeof(grpc_google_iam_credentials)); - c->base.type = GRPC_CALL_CREDENTIALS_TYPE_IAM; - c->base.vtable = &iam_vtable; - gpr_ref_init(&c->base.refcount, 1); - c->iam_md = grpc_credentials_md_store_create(2); - grpc_credentials_md_store_add_cstrings( - c->iam_md, GRPC_IAM_AUTHORIZATION_TOKEN_METADATA_KEY, token); - grpc_credentials_md_store_add_cstrings( - c->iam_md, GRPC_IAM_AUTHORITY_SELECTOR_METADATA_KEY, authority_selector); - return &c->base; -} - -/* -- Plugin credentials. -- */ - -typedef struct { - void *user_data; - grpc_credentials_metadata_cb cb; -} grpc_metadata_plugin_request; - -static void plugin_destruct(grpc_call_credentials *creds) { - grpc_plugin_credentials *c = (grpc_plugin_credentials *)creds; - if (c->plugin.state != NULL && c->plugin.destroy != NULL) { - c->plugin.destroy(c->plugin.state); - } -} - -static void plugin_md_request_metadata_ready(void *request, - const grpc_metadata *md, - size_t num_md, - grpc_status_code status, - const char *error_details) { - /* called from application code */ - grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - grpc_metadata_plugin_request *r = (grpc_metadata_plugin_request *)request; - if (status != GRPC_STATUS_OK) { - if (error_details != NULL) { - gpr_log(GPR_ERROR, "Getting metadata from plugin failed with error: %s", - error_details); - } - r->cb(&exec_ctx, r->user_data, NULL, 0, GRPC_CREDENTIALS_ERROR); - } else { - size_t i; - grpc_credentials_md *md_array = NULL; - if (num_md > 0) { - md_array = gpr_malloc(num_md * sizeof(grpc_credentials_md)); - for (i = 0; i < num_md; i++) { - md_array[i].key = gpr_slice_from_copied_string(md[i].key); - md_array[i].value = - gpr_slice_from_copied_buffer(md[i].value, md[i].value_length); - } - } - r->cb(&exec_ctx, r->user_data, md_array, num_md, GRPC_CREDENTIALS_OK); - if (md_array != NULL) { - for (i = 0; i < num_md; i++) { - gpr_slice_unref(md_array[i].key); - gpr_slice_unref(md_array[i].value); - } - gpr_free(md_array); - } - } - gpr_free(r); - grpc_exec_ctx_finish(&exec_ctx); -} - -static void plugin_get_request_metadata(grpc_exec_ctx *exec_ctx, - grpc_call_credentials *creds, - grpc_pollset *pollset, - grpc_auth_metadata_context context, - grpc_credentials_metadata_cb cb, - void *user_data) { - grpc_plugin_credentials *c = (grpc_plugin_credentials *)creds; - if (c->plugin.get_metadata != NULL) { - grpc_metadata_plugin_request *request = gpr_malloc(sizeof(*request)); - memset(request, 0, sizeof(*request)); - request->user_data = user_data; - request->cb = cb; - c->plugin.get_metadata(c->plugin.state, context, - plugin_md_request_metadata_ready, request); - } else { - cb(exec_ctx, user_data, NULL, 0, GRPC_CREDENTIALS_OK); - } -} - -static grpc_call_credentials_vtable plugin_vtable = { - plugin_destruct, plugin_get_request_metadata}; - -grpc_call_credentials *grpc_metadata_credentials_create_from_plugin( - grpc_metadata_credentials_plugin plugin, void *reserved) { - grpc_plugin_credentials *c = gpr_malloc(sizeof(*c)); - GRPC_API_TRACE("grpc_metadata_credentials_create_from_plugin(reserved=%p)", 1, - (reserved)); - GPR_ASSERT(reserved == NULL); - memset(c, 0, sizeof(*c)); - c->base.type = plugin.type; - c->base.vtable = &plugin_vtable; - gpr_ref_init(&c->base.refcount, 1); - c->plugin = plugin; - return &c->base; -} - -/* -- Composite channel credentials. -- */ - -static void composite_channel_destruct(grpc_channel_credentials *creds) { - grpc_composite_channel_credentials *c = - (grpc_composite_channel_credentials *)creds; - grpc_channel_credentials_unref(c->inner_creds); - grpc_call_credentials_unref(c->call_creds); -} - -static grpc_security_status composite_channel_create_security_connector( - 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_composite_channel_credentials *c = - (grpc_composite_channel_credentials *)creds; - grpc_security_status status = GRPC_SECURITY_ERROR; - - GPR_ASSERT(c->inner_creds != NULL && c->call_creds != NULL && - c->inner_creds->vtable != NULL && - c->inner_creds->vtable->create_security_connector != NULL); - /* If we are passed a call_creds, create a call composite to pass it - downstream. */ - if (call_creds != NULL) { - grpc_call_credentials *composite_call_creds = - grpc_composite_call_credentials_create(c->call_creds, call_creds, NULL); - status = c->inner_creds->vtable->create_security_connector( - c->inner_creds, composite_call_creds, target, args, sc, new_args); - grpc_call_credentials_unref(composite_call_creds); - } else { - status = c->inner_creds->vtable->create_security_connector( - c->inner_creds, c->call_creds, target, args, sc, new_args); - } - return status; -} - -static grpc_channel_credentials_vtable composite_channel_credentials_vtable = { - composite_channel_destruct, composite_channel_create_security_connector}; - -grpc_channel_credentials *grpc_composite_channel_credentials_create( - grpc_channel_credentials *channel_creds, grpc_call_credentials *call_creds, - void *reserved) { - grpc_composite_channel_credentials *c = gpr_malloc(sizeof(*c)); - memset(c, 0, sizeof(*c)); - GPR_ASSERT(channel_creds != NULL && call_creds != NULL && reserved == NULL); - GRPC_API_TRACE( - "grpc_composite_channel_credentials_create(channel_creds=%p, " - "call_creds=%p, reserved=%p)", - 3, (channel_creds, call_creds, reserved)); - c->base.type = channel_creds->type; - c->base.vtable = &composite_channel_credentials_vtable; - gpr_ref_init(&c->base.refcount, 1); - c->inner_creds = grpc_channel_credentials_ref(channel_creds); - c->call_creds = grpc_call_credentials_ref(call_creds); - return &c->base; -} diff --git a/src/core/lib/security/credentials/composite/composite_credentials.c b/src/core/lib/security/credentials/composite/composite_credentials.c new file mode 100644 index 0000000000..18189a8fb8 --- /dev/null +++ b/src/core/lib/security/credentials/composite/composite_credentials.c @@ -0,0 +1,262 @@ +/* + * + * 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/composite/composite_credentials.h" + +#include <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> + +/* -- Composite call credentials. -- */ + +typedef struct { + grpc_composite_call_credentials *composite_creds; + size_t creds_index; + grpc_credentials_md_store *md_elems; + grpc_auth_metadata_context auth_md_context; + void *user_data; + grpc_pollset *pollset; + grpc_credentials_metadata_cb cb; +} grpc_composite_call_credentials_metadata_context; + +static void composite_call_destruct(grpc_call_credentials *creds) { + grpc_composite_call_credentials *c = (grpc_composite_call_credentials *)creds; + size_t i; + for (i = 0; i < c->inner.num_creds; i++) { + grpc_call_credentials_unref(c->inner.creds_array[i]); + } + gpr_free(c->inner.creds_array); +} + +static void composite_call_md_context_destroy( + grpc_composite_call_credentials_metadata_context *ctx) { + grpc_credentials_md_store_unref(ctx->md_elems); + gpr_free(ctx); +} + +static void composite_call_metadata_cb(grpc_exec_ctx *exec_ctx, void *user_data, + grpc_credentials_md *md_elems, + size_t num_md, + grpc_credentials_status status) { + grpc_composite_call_credentials_metadata_context *ctx = + (grpc_composite_call_credentials_metadata_context *)user_data; + if (status != GRPC_CREDENTIALS_OK) { + ctx->cb(exec_ctx, ctx->user_data, NULL, 0, status); + return; + } + + /* Copy the metadata in the context. */ + if (num_md > 0) { + size_t i; + for (i = 0; i < num_md; i++) { + grpc_credentials_md_store_add(ctx->md_elems, md_elems[i].key, + md_elems[i].value); + } + } + + /* See if we need to get some more metadata. */ + if (ctx->creds_index < ctx->composite_creds->inner.num_creds) { + grpc_call_credentials *inner_creds = + ctx->composite_creds->inner.creds_array[ctx->creds_index++]; + grpc_call_credentials_get_request_metadata( + exec_ctx, inner_creds, ctx->pollset, ctx->auth_md_context, + composite_call_metadata_cb, ctx); + return; + } + + /* We're done!. */ + ctx->cb(exec_ctx, ctx->user_data, ctx->md_elems->entries, + ctx->md_elems->num_entries, GRPC_CREDENTIALS_OK); + composite_call_md_context_destroy(ctx); +} + +static void composite_call_get_request_metadata( + grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, + grpc_pollset *pollset, grpc_auth_metadata_context auth_md_context, + grpc_credentials_metadata_cb cb, void *user_data) { + grpc_composite_call_credentials *c = (grpc_composite_call_credentials *)creds; + grpc_composite_call_credentials_metadata_context *ctx; + + ctx = gpr_malloc(sizeof(grpc_composite_call_credentials_metadata_context)); + memset(ctx, 0, sizeof(grpc_composite_call_credentials_metadata_context)); + ctx->auth_md_context = auth_md_context; + ctx->user_data = user_data; + ctx->cb = cb; + ctx->composite_creds = c; + ctx->pollset = pollset; + ctx->md_elems = grpc_credentials_md_store_create(c->inner.num_creds); + grpc_call_credentials_get_request_metadata( + exec_ctx, c->inner.creds_array[ctx->creds_index++], pollset, + auth_md_context, composite_call_metadata_cb, ctx); +} + +static grpc_call_credentials_vtable composite_call_credentials_vtable = { + composite_call_destruct, composite_call_get_request_metadata}; + +static grpc_call_credentials_array get_creds_array( + grpc_call_credentials **creds_addr) { + grpc_call_credentials_array result; + grpc_call_credentials *creds = *creds_addr; + result.creds_array = creds_addr; + result.num_creds = 1; + if (strcmp(creds->type, GRPC_CALL_CREDENTIALS_TYPE_COMPOSITE) == 0) { + result = *grpc_composite_call_credentials_get_credentials(creds); + } + return result; +} + +grpc_call_credentials *grpc_composite_call_credentials_create( + grpc_call_credentials *creds1, grpc_call_credentials *creds2, + void *reserved) { + size_t i; + size_t creds_array_byte_size; + grpc_call_credentials_array creds1_array; + grpc_call_credentials_array creds2_array; + grpc_composite_call_credentials *c; + GRPC_API_TRACE( + "grpc_composite_call_credentials_create(creds1=%p, creds2=%p, " + "reserved=%p)", + 3, (creds1, creds2, reserved)); + GPR_ASSERT(reserved == NULL); + GPR_ASSERT(creds1 != NULL); + GPR_ASSERT(creds2 != NULL); + c = gpr_malloc(sizeof(grpc_composite_call_credentials)); + memset(c, 0, sizeof(grpc_composite_call_credentials)); + c->base.type = GRPC_CALL_CREDENTIALS_TYPE_COMPOSITE; + c->base.vtable = &composite_call_credentials_vtable; + gpr_ref_init(&c->base.refcount, 1); + creds1_array = get_creds_array(&creds1); + creds2_array = get_creds_array(&creds2); + c->inner.num_creds = creds1_array.num_creds + creds2_array.num_creds; + creds_array_byte_size = c->inner.num_creds * sizeof(grpc_call_credentials *); + c->inner.creds_array = gpr_malloc(creds_array_byte_size); + memset(c->inner.creds_array, 0, creds_array_byte_size); + for (i = 0; i < creds1_array.num_creds; i++) { + grpc_call_credentials *cur_creds = creds1_array.creds_array[i]; + c->inner.creds_array[i] = grpc_call_credentials_ref(cur_creds); + } + for (i = 0; i < creds2_array.num_creds; i++) { + grpc_call_credentials *cur_creds = creds2_array.creds_array[i]; + c->inner.creds_array[i + creds1_array.num_creds] = + grpc_call_credentials_ref(cur_creds); + } + return &c->base; +} + +const grpc_call_credentials_array * +grpc_composite_call_credentials_get_credentials(grpc_call_credentials *creds) { + const grpc_composite_call_credentials *c = + (const grpc_composite_call_credentials *)creds; + GPR_ASSERT(strcmp(creds->type, GRPC_CALL_CREDENTIALS_TYPE_COMPOSITE) == 0); + return &c->inner; +} + +grpc_call_credentials *grpc_credentials_contains_type( + grpc_call_credentials *creds, const char *type, + grpc_call_credentials **composite_creds) { + size_t i; + if (strcmp(creds->type, type) == 0) { + if (composite_creds != NULL) *composite_creds = NULL; + return creds; + } else if (strcmp(creds->type, GRPC_CALL_CREDENTIALS_TYPE_COMPOSITE) == 0) { + const grpc_call_credentials_array *inner_creds_array = + grpc_composite_call_credentials_get_credentials(creds); + for (i = 0; i < inner_creds_array->num_creds; i++) { + if (strcmp(type, inner_creds_array->creds_array[i]->type) == 0) { + if (composite_creds != NULL) *composite_creds = creds; + return inner_creds_array->creds_array[i]; + } + } + } + return NULL; +} + +/* -- Composite channel credentials. -- */ + +static void composite_channel_destruct(grpc_channel_credentials *creds) { + grpc_composite_channel_credentials *c = + (grpc_composite_channel_credentials *)creds; + grpc_channel_credentials_unref(c->inner_creds); + grpc_call_credentials_unref(c->call_creds); +} + +static grpc_security_status composite_channel_create_security_connector( + 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_composite_channel_credentials *c = + (grpc_composite_channel_credentials *)creds; + grpc_security_status status = GRPC_SECURITY_ERROR; + + GPR_ASSERT(c->inner_creds != NULL && c->call_creds != NULL && + c->inner_creds->vtable != NULL && + c->inner_creds->vtable->create_security_connector != NULL); + /* If we are passed a call_creds, create a call composite to pass it + downstream. */ + if (call_creds != NULL) { + grpc_call_credentials *composite_call_creds = + grpc_composite_call_credentials_create(c->call_creds, call_creds, NULL); + status = c->inner_creds->vtable->create_security_connector( + c->inner_creds, composite_call_creds, target, args, sc, new_args); + grpc_call_credentials_unref(composite_call_creds); + } else { + status = c->inner_creds->vtable->create_security_connector( + c->inner_creds, c->call_creds, target, args, sc, new_args); + } + return status; +} + +static grpc_channel_credentials_vtable composite_channel_credentials_vtable = { + composite_channel_destruct, composite_channel_create_security_connector}; + +grpc_channel_credentials *grpc_composite_channel_credentials_create( + grpc_channel_credentials *channel_creds, grpc_call_credentials *call_creds, + void *reserved) { + grpc_composite_channel_credentials *c = gpr_malloc(sizeof(*c)); + memset(c, 0, sizeof(*c)); + GPR_ASSERT(channel_creds != NULL && call_creds != NULL && reserved == NULL); + GRPC_API_TRACE( + "grpc_composite_channel_credentials_create(channel_creds=%p, " + "call_creds=%p, reserved=%p)", + 3, (channel_creds, call_creds, reserved)); + c->base.type = channel_creds->type; + c->base.vtable = &composite_channel_credentials_vtable; + gpr_ref_init(&c->base.refcount, 1); + c->inner_creds = grpc_channel_credentials_ref(channel_creds); + c->call_creds = grpc_call_credentials_ref(call_creds); + return &c->base; +} diff --git a/src/core/lib/security/credentials/composite/composite_credentials.h b/src/core/lib/security/credentials/composite/composite_credentials.h new file mode 100644 index 0000000000..0d8966f464 --- /dev/null +++ b/src/core/lib/security/credentials/composite/composite_credentials.h @@ -0,0 +1,72 @@ +/* + * + * 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. + * + */ + +#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_COMPOSITE_COMPOSITE_CREDENTIALS_H +#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_COMPOSITE_COMPOSITE_CREDENTIALS_H + +#include "src/core/lib/security/credentials/credentials.h" + +typedef struct { + grpc_call_credentials **creds_array; + size_t num_creds; +} grpc_call_credentials_array; + +const grpc_call_credentials_array * +grpc_composite_call_credentials_get_credentials( + grpc_call_credentials *composite_creds); + +/* Returns creds if creds is of the specified type or the inner creds of the + specified type (if found), if the creds is of type COMPOSITE. + If composite_creds is not NULL, *composite_creds will point to creds if of + type COMPOSITE in case of success. */ +grpc_call_credentials *grpc_credentials_contains_type( + grpc_call_credentials *creds, const char *type, + grpc_call_credentials **composite_creds); + +/* -- Channel composite credentials. -- */ + +typedef struct { + grpc_channel_credentials base; + grpc_channel_credentials *inner_creds; + grpc_call_credentials *call_creds; +} grpc_composite_channel_credentials; + +/* -- Composite credentials. -- */ + +typedef struct { + grpc_call_credentials base; + grpc_call_credentials_array inner; +} grpc_composite_call_credentials; + +#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_COMPOSITE_COMPOSITE_CREDENTIALS_H \ + */ diff --git a/src/core/lib/security/credentials/credentials.c b/src/core/lib/security/credentials/credentials.c new file mode 100644 index 0000000000..3dde6e587d --- /dev/null +++ b/src/core/lib/security/credentials/credentials.c @@ -0,0 +1,231 @@ +/* + * + * 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_pollset *pollset, 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, pollset, 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; +} diff --git a/src/core/lib/security/credentials.h b/src/core/lib/security/credentials/credentials.h index 0373ceaa3f..5f44c7c3e3 100644 --- a/src/core/lib/security/credentials.h +++ b/src/core/lib/security/credentials/credentials.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_H -#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_H +#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_CREDENTIALS_H +#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_CREDENTIALS_H #include <grpc/grpc.h> #include <grpc/grpc_security.h> @@ -41,8 +41,7 @@ #include "src/core/lib/http/httpcli.h" #include "src/core/lib/http/parser.h" -#include "src/core/lib/security/json_token.h" -#include "src/core/lib/security/security_connector.h" +#include "src/core/lib/security/transport/security_connector.h" struct grpc_http_response; @@ -69,10 +68,6 @@ typedef enum { "x-goog-iam-authorization-token" #define GRPC_IAM_AUTHORITY_SELECTOR_METADATA_KEY "x-goog-iam-authority-selector" -#define GRPC_GOOGLE_CLOUD_SDK_CONFIG_DIRECTORY "gcloud" -#define GRPC_GOOGLE_WELL_KNOWN_CREDENTIALS_FILE \ - "application_default_credentials.json" - #define GRPC_SECURE_TOKEN_REFRESH_THRESHOLD_SECS 60 #define GRPC_COMPUTE_ENGINE_METADATA_HOST "metadata" @@ -188,48 +183,11 @@ void grpc_call_credentials_get_request_metadata( grpc_pollset *pollset, grpc_auth_metadata_context context, grpc_credentials_metadata_cb cb, void *user_data); -typedef struct { - grpc_call_credentials **creds_array; - size_t num_creds; -} grpc_call_credentials_array; - -const grpc_call_credentials_array * -grpc_composite_call_credentials_get_credentials( - grpc_call_credentials *composite_creds); - -/* Returns creds if creds is of the specified type or the inner creds of the - specified type (if found), if the creds is of type COMPOSITE. - If composite_creds is not NULL, *composite_creds will point to creds if of - type COMPOSITE in case of success. */ -grpc_call_credentials *grpc_credentials_contains_type( - grpc_call_credentials *creds, const char *type, - grpc_call_credentials **composite_creds); - -/* Exposed for testing only. */ -grpc_credentials_status -grpc_oauth2_token_fetcher_credentials_parse_server_response( - const struct grpc_http_response *response, - grpc_credentials_md_store **token_md, gpr_timespec *token_lifetime); - -void grpc_flush_cached_google_default_credentials(void); - /* Metadata-only credentials with the specified key and value where asynchronicity can be simulated for testing. */ grpc_call_credentials *grpc_md_only_test_credentials_create( const char *md_key, const char *md_value, int is_async); -/* Private constructor for jwt credentials from an already parsed json key. - Takes ownership of the key. */ -grpc_call_credentials * -grpc_service_account_jwt_access_credentials_create_from_auth_json_key( - grpc_auth_json_key key, gpr_timespec token_lifetime); - -/* Private constructor for refresh token credentials from an already parsed - refresh token. Takes ownership of the refresh token. */ -grpc_call_credentials * -grpc_refresh_token_credentials_create_from_auth_refresh_token( - grpc_auth_refresh_token token); - /* --- grpc_server_credentials. --- */ typedef struct { @@ -260,118 +218,19 @@ grpc_server_credentials *grpc_server_credentials_from_arg(const grpc_arg *arg); grpc_server_credentials *grpc_find_server_credentials_in_args( const grpc_channel_args *args); -/* -- Fake transport security credentials. -- */ - -/* Creates a fake transport security credentials object for testing. */ -grpc_channel_credentials *grpc_fake_transport_security_credentials_create(void); -/* Creates a fake server transport security credentials object for testing. */ -grpc_server_credentials *grpc_fake_transport_security_server_credentials_create( - void); - -/* -- Ssl credentials. -- */ - -typedef struct { - grpc_channel_credentials base; - grpc_ssl_config config; -} grpc_ssl_credentials; - -typedef struct { - grpc_server_credentials base; - grpc_ssl_server_config config; -} grpc_ssl_server_credentials; - -/* -- Channel composite credentials. -- */ - -typedef struct { - grpc_channel_credentials base; - grpc_channel_credentials *inner_creds; - grpc_call_credentials *call_creds; -} grpc_composite_channel_credentials; - -/* -- Jwt credentials -- */ +/* -- Credentials Metadata Request. -- */ typedef struct { - grpc_call_credentials base; - - /* Have a simple cache for now with just 1 entry. We could have a map based on - the service_url for a more sophisticated one. */ - gpr_mu cache_mu; - struct { - grpc_credentials_md_store *jwt_md; - char *service_url; - gpr_timespec jwt_expiration; - } cached; - - grpc_auth_json_key key; - gpr_timespec jwt_lifetime; -} grpc_service_account_jwt_access_credentials; - -/* -- Oauth2TokenFetcher credentials -- - - This object is a base for credentials that need to acquire an oauth2 token - from an http service. */ - -typedef struct grpc_credentials_metadata_request - grpc_credentials_metadata_request; + grpc_call_credentials *creds; + grpc_credentials_metadata_cb cb; + void *user_data; +} grpc_credentials_metadata_request; -typedef void (*grpc_fetch_oauth2_func)(grpc_exec_ctx *exec_ctx, - grpc_credentials_metadata_request *req, - grpc_httpcli_context *http_context, - grpc_pollset *pollset, - grpc_httpcli_response_cb response_cb, - gpr_timespec deadline); +grpc_credentials_metadata_request *grpc_credentials_metadata_request_create( + grpc_call_credentials *creds, grpc_credentials_metadata_cb cb, + void *user_data); -typedef struct { - grpc_call_credentials base; - gpr_mu mu; - grpc_credentials_md_store *access_token_md; - gpr_timespec token_expiration; - grpc_httpcli_context httpcli_context; - grpc_fetch_oauth2_func fetch_func; -} grpc_oauth2_token_fetcher_credentials; - -/* -- GoogleRefreshToken credentials. -- */ - -typedef struct { - grpc_oauth2_token_fetcher_credentials base; - grpc_auth_refresh_token refresh_token; -} grpc_google_refresh_token_credentials; - -/* -- Oauth2 Access Token credentials. -- */ - -typedef struct { - grpc_call_credentials base; - grpc_credentials_md_store *access_token_md; -} grpc_access_token_credentials; - -/* -- Metadata-only Test credentials. -- */ - -typedef struct { - grpc_call_credentials base; - grpc_credentials_md_store *md_store; - int is_async; -} grpc_md_only_test_credentials; - -/* -- GoogleIAM credentials. -- */ - -typedef struct { - grpc_call_credentials base; - grpc_credentials_md_store *iam_md; -} grpc_google_iam_credentials; - -/* -- Composite credentials. -- */ - -typedef struct { - grpc_call_credentials base; - grpc_call_credentials_array inner; -} grpc_composite_call_credentials; - -/* -- Plugin credentials. -- */ - -typedef struct { - grpc_call_credentials base; - grpc_metadata_credentials_plugin plugin; - grpc_credentials_md_store *plugin_md; -} grpc_plugin_credentials; +void grpc_credentials_metadata_request_destroy( + grpc_credentials_metadata_request *r); -#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_H */ +#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_CREDENTIALS_H */ diff --git a/src/core/lib/security/credentials_metadata.c b/src/core/lib/security/credentials/credentials_metadata.c index bd00194278..6a352aab3a 100644 --- a/src/core/lib/security/credentials_metadata.c +++ b/src/core/lib/security/credentials/credentials_metadata.c @@ -31,7 +31,7 @@ * */ -#include "src/core/lib/security/credentials.h" +#include "src/core/lib/security/credentials/credentials.h" #include <grpc/support/alloc.h> diff --git a/src/core/lib/security/credentials/fake/fake_credentials.c b/src/core/lib/security/credentials/fake/fake_credentials.c new file mode 100644 index 0000000000..54d7cf2581 --- /dev/null +++ b/src/core/lib/security/credentials/fake/fake_credentials.c @@ -0,0 +1,138 @@ +/* + * + * Copyright 2016, 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/fake/fake_credentials.h" + +#include <string.h> + +#include "src/core/lib/channel/channel_args.h" +#include "src/core/lib/iomgr/executor.h" + +#include <grpc/support/alloc.h> +#include <grpc/support/log.h> +#include <grpc/support/string_util.h> + +/* -- Fake transport security credentials. -- */ + +static grpc_security_status fake_transport_security_create_security_connector( + grpc_channel_credentials *c, grpc_call_credentials *call_creds, + const char *target, const grpc_channel_args *args, + grpc_channel_security_connector **sc, grpc_channel_args **new_args) { + *sc = grpc_fake_channel_security_connector_create(call_creds); + return GRPC_SECURITY_OK; +} + +static grpc_security_status +fake_transport_security_server_create_security_connector( + grpc_server_credentials *c, grpc_server_security_connector **sc) { + *sc = grpc_fake_server_security_connector_create(); + return GRPC_SECURITY_OK; +} + +static grpc_channel_credentials_vtable + fake_transport_security_credentials_vtable = { + NULL, fake_transport_security_create_security_connector}; + +static grpc_server_credentials_vtable + fake_transport_security_server_credentials_vtable = { + NULL, fake_transport_security_server_create_security_connector}; + +grpc_channel_credentials *grpc_fake_transport_security_credentials_create( + void) { + grpc_channel_credentials *c = gpr_malloc(sizeof(grpc_channel_credentials)); + memset(c, 0, sizeof(grpc_channel_credentials)); + c->type = GRPC_CHANNEL_CREDENTIALS_TYPE_FAKE_TRANSPORT_SECURITY; + c->vtable = &fake_transport_security_credentials_vtable; + gpr_ref_init(&c->refcount, 1); + return c; +} + +grpc_server_credentials *grpc_fake_transport_security_server_credentials_create( + void) { + grpc_server_credentials *c = gpr_malloc(sizeof(grpc_server_credentials)); + memset(c, 0, sizeof(grpc_server_credentials)); + c->type = GRPC_CHANNEL_CREDENTIALS_TYPE_FAKE_TRANSPORT_SECURITY; + gpr_ref_init(&c->refcount, 1); + c->vtable = &fake_transport_security_server_credentials_vtable; + return c; +} + +/* -- Metadata-only test credentials. -- */ + +static void md_only_test_destruct(grpc_call_credentials *creds) { + grpc_md_only_test_credentials *c = (grpc_md_only_test_credentials *)creds; + grpc_credentials_md_store_unref(c->md_store); +} + +static void on_simulated_token_fetch_done(grpc_exec_ctx *exec_ctx, + void *user_data, bool success) { + grpc_credentials_metadata_request *r = + (grpc_credentials_metadata_request *)user_data; + grpc_md_only_test_credentials *c = (grpc_md_only_test_credentials *)r->creds; + r->cb(exec_ctx, r->user_data, c->md_store->entries, c->md_store->num_entries, + GRPC_CREDENTIALS_OK); + grpc_credentials_metadata_request_destroy(r); +} + +static void md_only_test_get_request_metadata( + grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, + grpc_pollset *pollset, grpc_auth_metadata_context context, + grpc_credentials_metadata_cb cb, void *user_data) { + grpc_md_only_test_credentials *c = (grpc_md_only_test_credentials *)creds; + + if (c->is_async) { + grpc_credentials_metadata_request *cb_arg = + grpc_credentials_metadata_request_create(creds, cb, user_data); + grpc_executor_enqueue( + grpc_closure_create(on_simulated_token_fetch_done, cb_arg), true); + } else { + cb(exec_ctx, user_data, c->md_store->entries, 1, GRPC_CREDENTIALS_OK); + } +} + +static grpc_call_credentials_vtable md_only_test_vtable = { + md_only_test_destruct, md_only_test_get_request_metadata}; + +grpc_call_credentials *grpc_md_only_test_credentials_create( + const char *md_key, const char *md_value, int is_async) { + grpc_md_only_test_credentials *c = + gpr_malloc(sizeof(grpc_md_only_test_credentials)); + memset(c, 0, sizeof(grpc_md_only_test_credentials)); + c->base.type = GRPC_CALL_CREDENTIALS_TYPE_OAUTH2; + c->base.vtable = &md_only_test_vtable; + gpr_ref_init(&c->base.refcount, 1); + c->md_store = grpc_credentials_md_store_create(1); + grpc_credentials_md_store_add_cstrings(c->md_store, md_key, md_value); + c->is_async = is_async; + return &c->base; +} diff --git a/src/core/lib/security/credentials/fake/fake_credentials.h b/src/core/lib/security/credentials/fake/fake_credentials.h new file mode 100644 index 0000000000..9cf38084a3 --- /dev/null +++ b/src/core/lib/security/credentials/fake/fake_credentials.h @@ -0,0 +1,56 @@ +/* + * + * Copyright 2016, 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. + * + */ + +#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_FAKE_FAKE_CREDENTIALS_H +#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_FAKE_FAKE_CREDENTIALS_H + +#include "src/core/lib/security/credentials/credentials.h" + +/* -- Fake transport security credentials. -- */ + +/* Creates a fake transport security credentials object for testing. */ +grpc_channel_credentials *grpc_fake_transport_security_credentials_create(void); + +/* Creates a fake server transport security credentials object for testing. */ +grpc_server_credentials *grpc_fake_transport_security_server_credentials_create( + void); + +/* -- Metadata-only Test credentials. -- */ + +typedef struct { + grpc_call_credentials base; + grpc_credentials_md_store *md_store; + int is_async; +} grpc_md_only_test_credentials; + +#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_FAKE_FAKE_CREDENTIALS_H */ diff --git a/src/core/lib/security/credentials_posix.c b/src/core/lib/security/credentials/google_default/credentials_posix.c index a07de182a0..42c9d7f997 100644 --- a/src/core/lib/security/credentials_posix.c +++ b/src/core/lib/security/credentials/google_default/credentials_posix.c @@ -35,7 +35,7 @@ #ifdef GPR_POSIX_FILE -#include "src/core/lib/security/credentials.h" +#include "src/core/lib/security/credentials/google_default/google_default_credentials.h" #include <grpc/support/alloc.h> #include <grpc/support/log.h> diff --git a/src/core/lib/security/credentials_windows.c b/src/core/lib/security/credentials/google_default/credentials_windows.c index 4b5e94f688..208b8fd9ad 100644 --- a/src/core/lib/security/credentials_windows.c +++ b/src/core/lib/security/credentials/google_default/credentials_windows.c @@ -35,7 +35,7 @@ #ifdef GPR_WINDOWS -#include "src/core/lib/security/credentials.h" +#include "src/core/lib/security/credentials/google_default/google_default_credentials.h" #include <grpc/support/alloc.h> #include <grpc/support/log.h> diff --git a/src/core/lib/security/google_default_credentials.c b/src/core/lib/security/credentials/google_default/google_default_credentials.c index 236f1d7fa7..a521d95abc 100644 --- a/src/core/lib/security/google_default_credentials.c +++ b/src/core/lib/security/credentials/google_default/google_default_credentials.c @@ -31,7 +31,7 @@ * */ -#include "src/core/lib/security/credentials.h" +#include "src/core/lib/security/credentials/credentials.h" #include <string.h> @@ -41,6 +41,8 @@ #include "src/core/lib/http/httpcli.h" #include "src/core/lib/http/parser.h" +#include "src/core/lib/security/credentials/jwt/jwt_credentials.h" +#include "src/core/lib/security/credentials/oauth2/oauth2_credentials.h" #include "src/core/lib/support/env.h" #include "src/core/lib/support/load_file.h" #include "src/core/lib/surface/api_trace.h" diff --git a/src/core/lib/security/credentials/google_default/google_default_credentials.h b/src/core/lib/security/credentials/google_default/google_default_credentials.h new file mode 100644 index 0000000000..fac4377e2c --- /dev/null +++ b/src/core/lib/security/credentials/google_default/google_default_credentials.h @@ -0,0 +1,46 @@ +/* + * + * Copyright 2016, 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. + * + */ + +#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_GOOGLE_DEFAULT_GOOGLE_DEFAULT_CREDENTIALS_H +#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_GOOGLE_DEFAULT_GOOGLE_DEFAULT_CREDENTIALS_H + +#include "src/core/lib/security/credentials/credentials.h" + +#define GRPC_GOOGLE_CLOUD_SDK_CONFIG_DIRECTORY "gcloud" +#define GRPC_GOOGLE_WELL_KNOWN_CREDENTIALS_FILE \ + "application_default_credentials.json" + +void grpc_flush_cached_google_default_credentials(void); + +#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_GOOGLE_DEFAULT_GOOGLE_DEFAULT_CREDENTIALS_H \ + */ diff --git a/src/core/lib/security/credentials/iam/iam_credentials.c b/src/core/lib/security/credentials/iam/iam_credentials.c new file mode 100644 index 0000000000..89defa7c60 --- /dev/null +++ b/src/core/lib/security/credentials/iam/iam_credentials.c @@ -0,0 +1,85 @@ +/* + * + * Copyright 2016, 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/iam/iam_credentials.h" + +#include <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> + +static void iam_destruct(grpc_call_credentials *creds) { + grpc_google_iam_credentials *c = (grpc_google_iam_credentials *)creds; + grpc_credentials_md_store_unref(c->iam_md); +} + +static void iam_get_request_metadata(grpc_exec_ctx *exec_ctx, + grpc_call_credentials *creds, + grpc_pollset *pollset, + grpc_auth_metadata_context context, + grpc_credentials_metadata_cb cb, + void *user_data) { + grpc_google_iam_credentials *c = (grpc_google_iam_credentials *)creds; + cb(exec_ctx, user_data, c->iam_md->entries, c->iam_md->num_entries, + GRPC_CREDENTIALS_OK); +} + +static grpc_call_credentials_vtable iam_vtable = {iam_destruct, + iam_get_request_metadata}; + +grpc_call_credentials *grpc_google_iam_credentials_create( + const char *token, const char *authority_selector, void *reserved) { + grpc_google_iam_credentials *c; + GRPC_API_TRACE( + "grpc_iam_credentials_create(token=%s, authority_selector=%s, " + "reserved=%p)", + 3, (token, authority_selector, reserved)); + GPR_ASSERT(reserved == NULL); + GPR_ASSERT(token != NULL); + GPR_ASSERT(authority_selector != NULL); + c = gpr_malloc(sizeof(grpc_google_iam_credentials)); + memset(c, 0, sizeof(grpc_google_iam_credentials)); + c->base.type = GRPC_CALL_CREDENTIALS_TYPE_IAM; + c->base.vtable = &iam_vtable; + gpr_ref_init(&c->base.refcount, 1); + c->iam_md = grpc_credentials_md_store_create(2); + grpc_credentials_md_store_add_cstrings( + c->iam_md, GRPC_IAM_AUTHORIZATION_TOKEN_METADATA_KEY, token); + grpc_credentials_md_store_add_cstrings( + c->iam_md, GRPC_IAM_AUTHORITY_SELECTOR_METADATA_KEY, authority_selector); + return &c->base; +} diff --git a/src/core/lib/security/credentials/iam/iam_credentials.h b/src/core/lib/security/credentials/iam/iam_credentials.h new file mode 100644 index 0000000000..af54faa586 --- /dev/null +++ b/src/core/lib/security/credentials/iam/iam_credentials.h @@ -0,0 +1,44 @@ +/* + * + * Copyright 2016, 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. + * + */ + +#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_IAM_IAM_CREDENTIALS_H +#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_IAM_IAM_CREDENTIALS_H + +#include "src/core/lib/security/credentials/credentials.h" + +typedef struct { + grpc_call_credentials base; + grpc_credentials_md_store *iam_md; +} grpc_google_iam_credentials; + +#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_IAM_IAM_CREDENTIALS_H */ diff --git a/src/core/lib/security/json_token.c b/src/core/lib/security/credentials/jwt/json_token.c index d5bc2c8d60..354c13133e 100644 --- a/src/core/lib/security/json_token.c +++ b/src/core/lib/security/credentials/jwt/json_token.c @@ -31,7 +31,7 @@ * */ -#include "src/core/lib/security/json_token.h" +#include "src/core/lib/security/credentials/jwt/json_token.h" #include <string.h> @@ -39,7 +39,8 @@ #include <grpc/support/log.h> #include <grpc/support/string_util.h> -#include "src/core/lib/security/b64.h" +#include "src/core/lib/security/util/b64.h" +#include "src/core/lib/security/util/json_util.h" #include "src/core/lib/support/string.h" #include <openssl/bio.h> @@ -66,28 +67,6 @@ static grpc_jwt_encode_and_sign_override g_jwt_encode_and_sign_override = NULL; /* --- grpc_auth_json_key. --- */ -static const char *json_get_string_property(const grpc_json *json, - const char *prop_name) { - grpc_json *child; - for (child = json->child; child != NULL; child = child->next) { - if (strcmp(child->key, prop_name) == 0) break; - } - if (child == NULL || child->type != GRPC_JSON_STRING) { - gpr_log(GPR_ERROR, "Invalid or missing %s property.", prop_name); - return NULL; - } - return child->value; -} - -static int set_json_key_string_property(const grpc_json *json, - const char *prop_name, - char **json_key_field) { - const char *prop_value = json_get_string_property(json, prop_name); - if (prop_value == NULL) return 0; - *json_key_field = gpr_strdup(prop_value); - return 1; -} - int grpc_auth_json_key_is_valid(const grpc_auth_json_key *json_key) { return (json_key != NULL) && strcmp(json_key->type, GRPC_AUTH_JSON_TYPE_INVALID); @@ -106,22 +85,22 @@ grpc_auth_json_key grpc_auth_json_key_create_from_json(const grpc_json *json) { goto end; } - prop_value = json_get_string_property(json, "type"); + prop_value = grpc_json_get_string_property(json, "type"); if (prop_value == NULL || strcmp(prop_value, GRPC_AUTH_JSON_TYPE_SERVICE_ACCOUNT)) { goto end; } result.type = GRPC_AUTH_JSON_TYPE_SERVICE_ACCOUNT; - if (!set_json_key_string_property(json, "private_key_id", - &result.private_key_id) || - !set_json_key_string_property(json, "client_id", &result.client_id) || - !set_json_key_string_property(json, "client_email", - &result.client_email)) { + if (!grpc_copy_json_string_property(json, "private_key_id", + &result.private_key_id) || + !grpc_copy_json_string_property(json, "client_id", &result.client_id) || + !grpc_copy_json_string_property(json, "client_email", + &result.client_email)) { goto end; } - prop_value = json_get_string_property(json, "private_key"); + prop_value = grpc_json_get_string_property(json, "private_key"); if (prop_value == NULL) { goto end; } @@ -339,73 +318,3 @@ void grpc_jwt_encode_and_sign_set_override( grpc_jwt_encode_and_sign_override func) { g_jwt_encode_and_sign_override = func; } - -/* --- grpc_auth_refresh_token --- */ - -int grpc_auth_refresh_token_is_valid( - const grpc_auth_refresh_token *refresh_token) { - return (refresh_token != NULL) && - strcmp(refresh_token->type, GRPC_AUTH_JSON_TYPE_INVALID); -} - -grpc_auth_refresh_token grpc_auth_refresh_token_create_from_json( - const grpc_json *json) { - grpc_auth_refresh_token result; - const char *prop_value; - int success = 0; - - memset(&result, 0, sizeof(grpc_auth_refresh_token)); - result.type = GRPC_AUTH_JSON_TYPE_INVALID; - if (json == NULL) { - gpr_log(GPR_ERROR, "Invalid json."); - goto end; - } - - prop_value = json_get_string_property(json, "type"); - if (prop_value == NULL || - strcmp(prop_value, GRPC_AUTH_JSON_TYPE_AUTHORIZED_USER)) { - goto end; - } - result.type = GRPC_AUTH_JSON_TYPE_AUTHORIZED_USER; - - if (!set_json_key_string_property(json, "client_secret", - &result.client_secret) || - !set_json_key_string_property(json, "client_id", &result.client_id) || - !set_json_key_string_property(json, "refresh_token", - &result.refresh_token)) { - goto end; - } - success = 1; - -end: - if (!success) grpc_auth_refresh_token_destruct(&result); - return result; -} - -grpc_auth_refresh_token grpc_auth_refresh_token_create_from_string( - const char *json_string) { - char *scratchpad = gpr_strdup(json_string); - grpc_json *json = grpc_json_parse_string(scratchpad); - grpc_auth_refresh_token result = - grpc_auth_refresh_token_create_from_json(json); - if (json != NULL) grpc_json_destroy(json); - gpr_free(scratchpad); - return result; -} - -void grpc_auth_refresh_token_destruct(grpc_auth_refresh_token *refresh_token) { - if (refresh_token == NULL) return; - refresh_token->type = GRPC_AUTH_JSON_TYPE_INVALID; - if (refresh_token->client_id != NULL) { - gpr_free(refresh_token->client_id); - refresh_token->client_id = NULL; - } - if (refresh_token->client_secret != NULL) { - gpr_free(refresh_token->client_secret); - refresh_token->client_secret = NULL; - } - if (refresh_token->refresh_token != NULL) { - gpr_free(refresh_token->refresh_token); - refresh_token->refresh_token = NULL; - } -} diff --git a/src/core/lib/security/json_token.h b/src/core/lib/security/credentials/jwt/json_token.h index 123fa652fd..07fc5bf0e0 100644 --- a/src/core/lib/security/json_token.h +++ b/src/core/lib/security/credentials/jwt/json_token.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_SECURITY_JSON_TOKEN_H -#define GRPC_CORE_LIB_SECURITY_JSON_TOKEN_H +#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JSON_TOKEN_H +#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JSON_TOKEN_H #include <grpc/support/slice.h> #include <openssl/rsa.h> @@ -43,10 +43,6 @@ #define GRPC_JWT_OAUTH2_AUDIENCE "https://www.googleapis.com/oauth2/v3/token" -#define GRPC_AUTH_JSON_TYPE_INVALID "invalid" -#define GRPC_AUTH_JSON_TYPE_SERVICE_ACCOUNT "service_account" -#define GRPC_AUTH_JSON_TYPE_AUTHORIZED_USER "authorized_user" - /* --- auth_json_key parsing. --- */ typedef struct { @@ -89,30 +85,4 @@ typedef char *(*grpc_jwt_encode_and_sign_override)( void grpc_jwt_encode_and_sign_set_override( grpc_jwt_encode_and_sign_override func); -/* --- auth_refresh_token parsing. --- */ - -typedef struct { - const char *type; - char *client_id; - char *client_secret; - char *refresh_token; -} grpc_auth_refresh_token; - -/* Returns 1 if the object is valid, 0 otherwise. */ -int grpc_auth_refresh_token_is_valid( - const grpc_auth_refresh_token *refresh_token); - -/* Creates a refresh token object from string. Returns an invalid object if a - parsing error has been encountered. */ -grpc_auth_refresh_token grpc_auth_refresh_token_create_from_string( - const char *json_string); - -/* Creates a refresh token object from parsed json. Returns an invalid object if - a parsing error has been encountered. */ -grpc_auth_refresh_token grpc_auth_refresh_token_create_from_json( - const grpc_json *json); - -/* Destructs the object. */ -void grpc_auth_refresh_token_destruct(grpc_auth_refresh_token *refresh_token); - -#endif /* GRPC_CORE_LIB_SECURITY_JSON_TOKEN_H */ +#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JSON_TOKEN_H */ diff --git a/src/core/lib/security/credentials/jwt/jwt_credentials.c b/src/core/lib/security/credentials/jwt/jwt_credentials.c new file mode 100644 index 0000000000..8755a96af4 --- /dev/null +++ b/src/core/lib/security/credentials/jwt/jwt_credentials.c @@ -0,0 +1,160 @@ +/* + * + * Copyright 2016, 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/jwt/jwt_credentials.h" + +#include <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> + +static void jwt_reset_cache(grpc_service_account_jwt_access_credentials *c) { + if (c->cached.jwt_md != NULL) { + grpc_credentials_md_store_unref(c->cached.jwt_md); + c->cached.jwt_md = NULL; + } + if (c->cached.service_url != NULL) { + gpr_free(c->cached.service_url); + c->cached.service_url = NULL; + } + c->cached.jwt_expiration = gpr_inf_past(GPR_CLOCK_REALTIME); +} + +static void jwt_destruct(grpc_call_credentials *creds) { + grpc_service_account_jwt_access_credentials *c = + (grpc_service_account_jwt_access_credentials *)creds; + grpc_auth_json_key_destruct(&c->key); + jwt_reset_cache(c); + gpr_mu_destroy(&c->cache_mu); +} + +static void jwt_get_request_metadata(grpc_exec_ctx *exec_ctx, + grpc_call_credentials *creds, + grpc_pollset *pollset, + grpc_auth_metadata_context context, + grpc_credentials_metadata_cb cb, + void *user_data) { + grpc_service_account_jwt_access_credentials *c = + (grpc_service_account_jwt_access_credentials *)creds; + gpr_timespec refresh_threshold = gpr_time_from_seconds( + GRPC_SECURE_TOKEN_REFRESH_THRESHOLD_SECS, GPR_TIMESPAN); + + /* See if we can return a cached jwt. */ + grpc_credentials_md_store *jwt_md = NULL; + { + gpr_mu_lock(&c->cache_mu); + if (c->cached.service_url != NULL && + strcmp(c->cached.service_url, context.service_url) == 0 && + c->cached.jwt_md != NULL && + (gpr_time_cmp(gpr_time_sub(c->cached.jwt_expiration, + gpr_now(GPR_CLOCK_REALTIME)), + refresh_threshold) > 0)) { + jwt_md = grpc_credentials_md_store_ref(c->cached.jwt_md); + } + gpr_mu_unlock(&c->cache_mu); + } + + if (jwt_md == NULL) { + char *jwt = NULL; + /* Generate a new jwt. */ + gpr_mu_lock(&c->cache_mu); + jwt_reset_cache(c); + jwt = grpc_jwt_encode_and_sign(&c->key, context.service_url, + c->jwt_lifetime, NULL); + if (jwt != NULL) { + char *md_value; + gpr_asprintf(&md_value, "Bearer %s", jwt); + gpr_free(jwt); + c->cached.jwt_expiration = + gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), c->jwt_lifetime); + c->cached.service_url = gpr_strdup(context.service_url); + c->cached.jwt_md = grpc_credentials_md_store_create(1); + grpc_credentials_md_store_add_cstrings( + c->cached.jwt_md, GRPC_AUTHORIZATION_METADATA_KEY, md_value); + gpr_free(md_value); + jwt_md = grpc_credentials_md_store_ref(c->cached.jwt_md); + } + gpr_mu_unlock(&c->cache_mu); + } + + if (jwt_md != NULL) { + cb(exec_ctx, user_data, jwt_md->entries, jwt_md->num_entries, + GRPC_CREDENTIALS_OK); + grpc_credentials_md_store_unref(jwt_md); + } else { + cb(exec_ctx, user_data, NULL, 0, GRPC_CREDENTIALS_ERROR); + } +} + +static grpc_call_credentials_vtable jwt_vtable = {jwt_destruct, + jwt_get_request_metadata}; + +grpc_call_credentials * +grpc_service_account_jwt_access_credentials_create_from_auth_json_key( + grpc_auth_json_key key, gpr_timespec token_lifetime) { + grpc_service_account_jwt_access_credentials *c; + if (!grpc_auth_json_key_is_valid(&key)) { + gpr_log(GPR_ERROR, "Invalid input for jwt credentials creation"); + return NULL; + } + c = gpr_malloc(sizeof(grpc_service_account_jwt_access_credentials)); + memset(c, 0, sizeof(grpc_service_account_jwt_access_credentials)); + c->base.type = GRPC_CALL_CREDENTIALS_TYPE_JWT; + gpr_ref_init(&c->base.refcount, 1); + c->base.vtable = &jwt_vtable; + c->key = key; + c->jwt_lifetime = token_lifetime; + gpr_mu_init(&c->cache_mu); + jwt_reset_cache(c); + return &c->base; +} + +grpc_call_credentials *grpc_service_account_jwt_access_credentials_create( + const char *json_key, gpr_timespec token_lifetime, void *reserved) { + GRPC_API_TRACE( + "grpc_service_account_jwt_access_credentials_create(" + "json_key=%s, " + "token_lifetime=" + "gpr_timespec { tv_sec: %lld, tv_nsec: %d, clock_type: %d }, " + "reserved=%p)", + 5, + (json_key, (long long)token_lifetime.tv_sec, (int)token_lifetime.tv_nsec, + (int)token_lifetime.clock_type, reserved)); + GPR_ASSERT(reserved == NULL); + return grpc_service_account_jwt_access_credentials_create_from_auth_json_key( + grpc_auth_json_key_create_from_string(json_key), token_lifetime); +} diff --git a/src/core/lib/security/credentials/jwt/jwt_credentials.h b/src/core/lib/security/credentials/jwt/jwt_credentials.h new file mode 100644 index 0000000000..d572606179 --- /dev/null +++ b/src/core/lib/security/credentials/jwt/jwt_credentials.h @@ -0,0 +1,62 @@ +/* + * + * Copyright 2016, 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. + * + */ + +#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JWT_CREDENTIALS_H +#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JWT_CREDENTIALS_H + +#include "src/core/lib/security/credentials/credentials.h" +#include "src/core/lib/security/credentials/jwt/json_token.h" + +typedef struct { + grpc_call_credentials base; + + // Have a simple cache for now with just 1 entry. We could have a map based on + // the service_url for a more sophisticated one. + gpr_mu cache_mu; + struct { + grpc_credentials_md_store *jwt_md; + char *service_url; + gpr_timespec jwt_expiration; + } cached; + + grpc_auth_json_key key; + gpr_timespec jwt_lifetime; +} grpc_service_account_jwt_access_credentials; + +// Private constructor for jwt credentials from an already parsed json key. +// Takes ownership of the key. +grpc_call_credentials * +grpc_service_account_jwt_access_credentials_create_from_auth_json_key( + grpc_auth_json_key key, gpr_timespec token_lifetime); + +#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JWT_CREDENTIALS_H */ diff --git a/src/core/lib/security/jwt_verifier.c b/src/core/lib/security/credentials/jwt/jwt_verifier.c index 0e012294de..cd6c7ce392 100644 --- a/src/core/lib/security/jwt_verifier.c +++ b/src/core/lib/security/credentials/jwt/jwt_verifier.c @@ -31,13 +31,13 @@ * */ -#include "src/core/lib/security/jwt_verifier.h" +#include "src/core/lib/security/credentials/jwt/jwt_verifier.h" #include <limits.h> #include <string.h> #include "src/core/lib/http/httpcli.h" -#include "src/core/lib/security/b64.h" +#include "src/core/lib/security/util/b64.h" #include "src/core/lib/tsi/ssl_types.h" #include <grpc/support/alloc.h> diff --git a/src/core/lib/security/jwt_verifier.h b/src/core/lib/security/credentials/jwt/jwt_verifier.h index 98a4f6b116..b0f6d1c240 100644 --- a/src/core/lib/security/jwt_verifier.h +++ b/src/core/lib/security/credentials/jwt/jwt_verifier.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_SECURITY_JWT_VERIFIER_H -#define GRPC_CORE_LIB_SECURITY_JWT_VERIFIER_H +#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JWT_VERIFIER_H +#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JWT_VERIFIER_H #include "src/core/lib/iomgr/pollset.h" #include "src/core/lib/json/json.h" @@ -133,4 +133,4 @@ grpc_jwt_claims *grpc_jwt_claims_from_json(grpc_json *json, gpr_slice buffer); grpc_jwt_verifier_status grpc_jwt_claims_check(const grpc_jwt_claims *claims, const char *audience); -#endif /* GRPC_CORE_LIB_SECURITY_JWT_VERIFIER_H */ +#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JWT_VERIFIER_H */ diff --git a/src/core/lib/security/credentials/oauth2/oauth2_credentials.c b/src/core/lib/security/credentials/oauth2/oauth2_credentials.c new file mode 100644 index 0000000000..973c6e1d17 --- /dev/null +++ b/src/core/lib/security/credentials/oauth2/oauth2_credentials.c @@ -0,0 +1,428 @@ +/* + * + * 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/oauth2/oauth2_credentials.h" + +#include <string.h> + +#include "src/core/lib/security/util/json_util.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> + +// +// Auth Refresh Token. +// + +int grpc_auth_refresh_token_is_valid( + const grpc_auth_refresh_token *refresh_token) { + return (refresh_token != NULL) && + strcmp(refresh_token->type, GRPC_AUTH_JSON_TYPE_INVALID); +} + +grpc_auth_refresh_token grpc_auth_refresh_token_create_from_json( + const grpc_json *json) { + grpc_auth_refresh_token result; + const char *prop_value; + int success = 0; + + memset(&result, 0, sizeof(grpc_auth_refresh_token)); + result.type = GRPC_AUTH_JSON_TYPE_INVALID; + if (json == NULL) { + gpr_log(GPR_ERROR, "Invalid json."); + goto end; + } + + prop_value = grpc_json_get_string_property(json, "type"); + if (prop_value == NULL || + strcmp(prop_value, GRPC_AUTH_JSON_TYPE_AUTHORIZED_USER)) { + goto end; + } + result.type = GRPC_AUTH_JSON_TYPE_AUTHORIZED_USER; + + if (!grpc_copy_json_string_property(json, "client_secret", + &result.client_secret) || + !grpc_copy_json_string_property(json, "client_id", &result.client_id) || + !grpc_copy_json_string_property(json, "refresh_token", + &result.refresh_token)) { + goto end; + } + success = 1; + +end: + if (!success) grpc_auth_refresh_token_destruct(&result); + return result; +} + +grpc_auth_refresh_token grpc_auth_refresh_token_create_from_string( + const char *json_string) { + char *scratchpad = gpr_strdup(json_string); + grpc_json *json = grpc_json_parse_string(scratchpad); + grpc_auth_refresh_token result = + grpc_auth_refresh_token_create_from_json(json); + if (json != NULL) grpc_json_destroy(json); + gpr_free(scratchpad); + return result; +} + +void grpc_auth_refresh_token_destruct(grpc_auth_refresh_token *refresh_token) { + if (refresh_token == NULL) return; + refresh_token->type = GRPC_AUTH_JSON_TYPE_INVALID; + if (refresh_token->client_id != NULL) { + gpr_free(refresh_token->client_id); + refresh_token->client_id = NULL; + } + if (refresh_token->client_secret != NULL) { + gpr_free(refresh_token->client_secret); + refresh_token->client_secret = NULL; + } + if (refresh_token->refresh_token != NULL) { + gpr_free(refresh_token->refresh_token); + refresh_token->refresh_token = NULL; + } +} + +// +// Oauth2 Token Fetcher credentials. +// + +static void oauth2_token_fetcher_destruct(grpc_call_credentials *creds) { + grpc_oauth2_token_fetcher_credentials *c = + (grpc_oauth2_token_fetcher_credentials *)creds; + grpc_credentials_md_store_unref(c->access_token_md); + gpr_mu_destroy(&c->mu); + grpc_httpcli_context_destroy(&c->httpcli_context); +} + +grpc_credentials_status +grpc_oauth2_token_fetcher_credentials_parse_server_response( + const grpc_http_response *response, grpc_credentials_md_store **token_md, + gpr_timespec *token_lifetime) { + char *null_terminated_body = NULL; + char *new_access_token = NULL; + grpc_credentials_status status = GRPC_CREDENTIALS_OK; + grpc_json *json = NULL; + + if (response == NULL) { + gpr_log(GPR_ERROR, "Received NULL response."); + status = GRPC_CREDENTIALS_ERROR; + goto end; + } + + if (response->body_length > 0) { + null_terminated_body = gpr_malloc(response->body_length + 1); + null_terminated_body[response->body_length] = '\0'; + memcpy(null_terminated_body, response->body, response->body_length); + } + + if (response->status != 200) { + gpr_log(GPR_ERROR, "Call to http server ended with error %d [%s].", + response->status, + null_terminated_body != NULL ? null_terminated_body : ""); + status = GRPC_CREDENTIALS_ERROR; + goto end; + } else { + grpc_json *access_token = NULL; + grpc_json *token_type = NULL; + grpc_json *expires_in = NULL; + grpc_json *ptr; + json = grpc_json_parse_string(null_terminated_body); + if (json == NULL) { + gpr_log(GPR_ERROR, "Could not parse JSON from %s", null_terminated_body); + status = GRPC_CREDENTIALS_ERROR; + goto end; + } + if (json->type != GRPC_JSON_OBJECT) { + gpr_log(GPR_ERROR, "Response should be a JSON object"); + status = GRPC_CREDENTIALS_ERROR; + goto end; + } + for (ptr = json->child; ptr; ptr = ptr->next) { + if (strcmp(ptr->key, "access_token") == 0) { + access_token = ptr; + } else if (strcmp(ptr->key, "token_type") == 0) { + token_type = ptr; + } else if (strcmp(ptr->key, "expires_in") == 0) { + expires_in = ptr; + } + } + if (access_token == NULL || access_token->type != GRPC_JSON_STRING) { + gpr_log(GPR_ERROR, "Missing or invalid access_token in JSON."); + status = GRPC_CREDENTIALS_ERROR; + goto end; + } + if (token_type == NULL || token_type->type != GRPC_JSON_STRING) { + gpr_log(GPR_ERROR, "Missing or invalid token_type in JSON."); + status = GRPC_CREDENTIALS_ERROR; + goto end; + } + if (expires_in == NULL || expires_in->type != GRPC_JSON_NUMBER) { + gpr_log(GPR_ERROR, "Missing or invalid expires_in in JSON."); + status = GRPC_CREDENTIALS_ERROR; + goto end; + } + gpr_asprintf(&new_access_token, "%s %s", token_type->value, + access_token->value); + token_lifetime->tv_sec = strtol(expires_in->value, NULL, 10); + token_lifetime->tv_nsec = 0; + token_lifetime->clock_type = GPR_TIMESPAN; + if (*token_md != NULL) grpc_credentials_md_store_unref(*token_md); + *token_md = grpc_credentials_md_store_create(1); + grpc_credentials_md_store_add_cstrings( + *token_md, GRPC_AUTHORIZATION_METADATA_KEY, new_access_token); + status = GRPC_CREDENTIALS_OK; + } + +end: + if (status != GRPC_CREDENTIALS_OK && (*token_md != NULL)) { + grpc_credentials_md_store_unref(*token_md); + *token_md = NULL; + } + if (null_terminated_body != NULL) gpr_free(null_terminated_body); + if (new_access_token != NULL) gpr_free(new_access_token); + if (json != NULL) grpc_json_destroy(json); + return status; +} + +static void on_oauth2_token_fetcher_http_response( + grpc_exec_ctx *exec_ctx, void *user_data, + const grpc_http_response *response) { + grpc_credentials_metadata_request *r = + (grpc_credentials_metadata_request *)user_data; + grpc_oauth2_token_fetcher_credentials *c = + (grpc_oauth2_token_fetcher_credentials *)r->creds; + gpr_timespec token_lifetime; + grpc_credentials_status status; + + gpr_mu_lock(&c->mu); + status = grpc_oauth2_token_fetcher_credentials_parse_server_response( + response, &c->access_token_md, &token_lifetime); + if (status == GRPC_CREDENTIALS_OK) { + c->token_expiration = + gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), token_lifetime); + r->cb(exec_ctx, r->user_data, c->access_token_md->entries, + c->access_token_md->num_entries, status); + } else { + c->token_expiration = gpr_inf_past(GPR_CLOCK_REALTIME); + r->cb(exec_ctx, r->user_data, NULL, 0, status); + } + gpr_mu_unlock(&c->mu); + grpc_credentials_metadata_request_destroy(r); +} + +static void oauth2_token_fetcher_get_request_metadata( + grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, + grpc_pollset *pollset, grpc_auth_metadata_context context, + grpc_credentials_metadata_cb cb, void *user_data) { + grpc_oauth2_token_fetcher_credentials *c = + (grpc_oauth2_token_fetcher_credentials *)creds; + gpr_timespec refresh_threshold = gpr_time_from_seconds( + GRPC_SECURE_TOKEN_REFRESH_THRESHOLD_SECS, GPR_TIMESPAN); + grpc_credentials_md_store *cached_access_token_md = NULL; + { + gpr_mu_lock(&c->mu); + if (c->access_token_md != NULL && + (gpr_time_cmp( + gpr_time_sub(c->token_expiration, gpr_now(GPR_CLOCK_REALTIME)), + refresh_threshold) > 0)) { + cached_access_token_md = + grpc_credentials_md_store_ref(c->access_token_md); + } + gpr_mu_unlock(&c->mu); + } + if (cached_access_token_md != NULL) { + cb(exec_ctx, user_data, cached_access_token_md->entries, + cached_access_token_md->num_entries, GRPC_CREDENTIALS_OK); + grpc_credentials_md_store_unref(cached_access_token_md); + } else { + c->fetch_func( + exec_ctx, + grpc_credentials_metadata_request_create(creds, cb, user_data), + &c->httpcli_context, pollset, on_oauth2_token_fetcher_http_response, + gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), refresh_threshold)); + } +} + +static void init_oauth2_token_fetcher(grpc_oauth2_token_fetcher_credentials *c, + grpc_fetch_oauth2_func fetch_func) { + memset(c, 0, sizeof(grpc_oauth2_token_fetcher_credentials)); + c->base.type = GRPC_CALL_CREDENTIALS_TYPE_OAUTH2; + gpr_ref_init(&c->base.refcount, 1); + gpr_mu_init(&c->mu); + c->token_expiration = gpr_inf_past(GPR_CLOCK_REALTIME); + c->fetch_func = fetch_func; + grpc_httpcli_context_init(&c->httpcli_context); +} + +// +// Google Compute Engine credentials. +// + +static grpc_call_credentials_vtable compute_engine_vtable = { + oauth2_token_fetcher_destruct, oauth2_token_fetcher_get_request_metadata}; + +static void compute_engine_fetch_oauth2( + grpc_exec_ctx *exec_ctx, grpc_credentials_metadata_request *metadata_req, + grpc_httpcli_context *httpcli_context, grpc_pollset *pollset, + grpc_httpcli_response_cb response_cb, gpr_timespec deadline) { + grpc_http_header header = {"Metadata-Flavor", "Google"}; + grpc_httpcli_request request; + memset(&request, 0, sizeof(grpc_httpcli_request)); + request.host = GRPC_COMPUTE_ENGINE_METADATA_HOST; + request.http.path = GRPC_COMPUTE_ENGINE_METADATA_TOKEN_PATH; + request.http.hdr_count = 1; + request.http.hdrs = &header; + grpc_httpcli_get(exec_ctx, httpcli_context, pollset, &request, deadline, + response_cb, metadata_req); +} + +grpc_call_credentials *grpc_google_compute_engine_credentials_create( + void *reserved) { + grpc_oauth2_token_fetcher_credentials *c = + gpr_malloc(sizeof(grpc_oauth2_token_fetcher_credentials)); + GRPC_API_TRACE("grpc_compute_engine_credentials_create(reserved=%p)", 1, + (reserved)); + GPR_ASSERT(reserved == NULL); + init_oauth2_token_fetcher(c, compute_engine_fetch_oauth2); + c->base.vtable = &compute_engine_vtable; + return &c->base; +} + +// +// Google Refresh Token credentials. +// + +static void refresh_token_destruct(grpc_call_credentials *creds) { + grpc_google_refresh_token_credentials *c = + (grpc_google_refresh_token_credentials *)creds; + grpc_auth_refresh_token_destruct(&c->refresh_token); + oauth2_token_fetcher_destruct(&c->base.base); +} + +static grpc_call_credentials_vtable refresh_token_vtable = { + refresh_token_destruct, oauth2_token_fetcher_get_request_metadata}; + +static void refresh_token_fetch_oauth2( + grpc_exec_ctx *exec_ctx, grpc_credentials_metadata_request *metadata_req, + grpc_httpcli_context *httpcli_context, grpc_pollset *pollset, + grpc_httpcli_response_cb response_cb, gpr_timespec deadline) { + grpc_google_refresh_token_credentials *c = + (grpc_google_refresh_token_credentials *)metadata_req->creds; + grpc_http_header header = {"Content-Type", + "application/x-www-form-urlencoded"}; + grpc_httpcli_request request; + char *body = NULL; + gpr_asprintf(&body, GRPC_REFRESH_TOKEN_POST_BODY_FORMAT_STRING, + c->refresh_token.client_id, c->refresh_token.client_secret, + c->refresh_token.refresh_token); + memset(&request, 0, sizeof(grpc_httpcli_request)); + request.host = GRPC_GOOGLE_OAUTH2_SERVICE_HOST; + request.http.path = GRPC_GOOGLE_OAUTH2_SERVICE_TOKEN_PATH; + request.http.hdr_count = 1; + request.http.hdrs = &header; + request.handshaker = &grpc_httpcli_ssl; + grpc_httpcli_post(exec_ctx, httpcli_context, pollset, &request, body, + strlen(body), deadline, response_cb, metadata_req); + gpr_free(body); +} + +grpc_call_credentials * +grpc_refresh_token_credentials_create_from_auth_refresh_token( + grpc_auth_refresh_token refresh_token) { + grpc_google_refresh_token_credentials *c; + if (!grpc_auth_refresh_token_is_valid(&refresh_token)) { + gpr_log(GPR_ERROR, "Invalid input for refresh token credentials creation"); + return NULL; + } + c = gpr_malloc(sizeof(grpc_google_refresh_token_credentials)); + memset(c, 0, sizeof(grpc_google_refresh_token_credentials)); + init_oauth2_token_fetcher(&c->base, refresh_token_fetch_oauth2); + c->base.base.vtable = &refresh_token_vtable; + c->refresh_token = refresh_token; + return &c->base.base; +} + +grpc_call_credentials *grpc_google_refresh_token_credentials_create( + const char *json_refresh_token, void *reserved) { + GRPC_API_TRACE( + "grpc_refresh_token_credentials_create(json_refresh_token=%s, " + "reserved=%p)", + 2, (json_refresh_token, reserved)); + GPR_ASSERT(reserved == NULL); + return grpc_refresh_token_credentials_create_from_auth_refresh_token( + grpc_auth_refresh_token_create_from_string(json_refresh_token)); +} + +// +// Oauth2 Access Token credentials. +// + +static void access_token_destruct(grpc_call_credentials *creds) { + grpc_access_token_credentials *c = (grpc_access_token_credentials *)creds; + grpc_credentials_md_store_unref(c->access_token_md); +} + +static void access_token_get_request_metadata( + grpc_exec_ctx *exec_ctx, grpc_call_credentials *creds, + grpc_pollset *pollset, grpc_auth_metadata_context context, + grpc_credentials_metadata_cb cb, void *user_data) { + grpc_access_token_credentials *c = (grpc_access_token_credentials *)creds; + cb(exec_ctx, user_data, c->access_token_md->entries, 1, GRPC_CREDENTIALS_OK); +} + +static grpc_call_credentials_vtable access_token_vtable = { + access_token_destruct, access_token_get_request_metadata}; + +grpc_call_credentials *grpc_access_token_credentials_create( + const char *access_token, void *reserved) { + grpc_access_token_credentials *c = + gpr_malloc(sizeof(grpc_access_token_credentials)); + char *token_md_value; + GRPC_API_TRACE( + "grpc_access_token_credentials_create(access_token=%s, " + "reserved=%p)", + 2, (access_token, reserved)); + GPR_ASSERT(reserved == NULL); + memset(c, 0, sizeof(grpc_access_token_credentials)); + c->base.type = GRPC_CALL_CREDENTIALS_TYPE_OAUTH2; + c->base.vtable = &access_token_vtable; + gpr_ref_init(&c->base.refcount, 1); + c->access_token_md = grpc_credentials_md_store_create(1); + gpr_asprintf(&token_md_value, "Bearer %s", access_token); + grpc_credentials_md_store_add_cstrings( + c->access_token_md, GRPC_AUTHORIZATION_METADATA_KEY, token_md_value); + gpr_free(token_md_value); + return &c->base; +} diff --git a/src/core/lib/security/credentials/oauth2/oauth2_credentials.h b/src/core/lib/security/credentials/oauth2/oauth2_credentials.h new file mode 100644 index 0000000000..04915b333f --- /dev/null +++ b/src/core/lib/security/credentials/oauth2/oauth2_credentials.h @@ -0,0 +1,109 @@ +/* + * + * Copyright 2016, 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. + * + */ + +#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_OAUTH2_OAUTH2_CREDENTIALS_H +#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_OAUTH2_OAUTH2_CREDENTIALS_H + +#include "src/core/lib/json/json.h" +#include "src/core/lib/security/credentials/credentials.h" + +// auth_refresh_token parsing. +typedef struct { + const char *type; + char *client_id; + char *client_secret; + char *refresh_token; +} grpc_auth_refresh_token; + +/// Returns 1 if the object is valid, 0 otherwise. +int grpc_auth_refresh_token_is_valid( + const grpc_auth_refresh_token *refresh_token); + +/// Creates a refresh token object from string. Returns an invalid object if a +/// parsing error has been encountered. +grpc_auth_refresh_token grpc_auth_refresh_token_create_from_string( + const char *json_string); + +/// Creates a refresh token object from parsed json. Returns an invalid object +/// if a parsing error has been encountered. +grpc_auth_refresh_token grpc_auth_refresh_token_create_from_json( + const grpc_json *json); + +/// Destructs the object. +void grpc_auth_refresh_token_destruct(grpc_auth_refresh_token *refresh_token); + +// -- Oauth2 Token Fetcher credentials -- +// +// This object is a base for credentials that need to acquire an oauth2 token +// from an http service. + +typedef void (*grpc_fetch_oauth2_func)(grpc_exec_ctx *exec_ctx, + grpc_credentials_metadata_request *req, + grpc_httpcli_context *http_context, + grpc_pollset *pollset, + grpc_httpcli_response_cb response_cb, + gpr_timespec deadline); +typedef struct { + grpc_call_credentials base; + gpr_mu mu; + grpc_credentials_md_store *access_token_md; + gpr_timespec token_expiration; + grpc_httpcli_context httpcli_context; + grpc_fetch_oauth2_func fetch_func; +} grpc_oauth2_token_fetcher_credentials; + +// Google refresh token credentials. +typedef struct { + grpc_oauth2_token_fetcher_credentials base; + grpc_auth_refresh_token refresh_token; +} grpc_google_refresh_token_credentials; + +// Access token credentials. +typedef struct { + grpc_call_credentials base; + grpc_credentials_md_store *access_token_md; +} grpc_access_token_credentials; + +// Private constructor for refresh token credentials from an already parsed +// refresh token. Takes ownership of the refresh token. +grpc_call_credentials * +grpc_refresh_token_credentials_create_from_auth_refresh_token( + grpc_auth_refresh_token token); + +// Exposed for testing only. +grpc_credentials_status +grpc_oauth2_token_fetcher_credentials_parse_server_response( + const struct grpc_http_response *response, + grpc_credentials_md_store **token_md, gpr_timespec *token_lifetime); + +#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_OAUTH2_OAUTH2_CREDENTIALS_H */ diff --git a/src/core/lib/security/credentials/plugin/plugin_credentials.c b/src/core/lib/security/credentials/plugin/plugin_credentials.c new file mode 100644 index 0000000000..bae357321e --- /dev/null +++ b/src/core/lib/security/credentials/plugin/plugin_credentials.c @@ -0,0 +1,129 @@ +/* + * + * Copyright 2016, 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/plugin/plugin_credentials.h" + +#include <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> + +typedef struct { + void *user_data; + grpc_credentials_metadata_cb cb; +} grpc_metadata_plugin_request; + +static void plugin_destruct(grpc_call_credentials *creds) { + grpc_plugin_credentials *c = (grpc_plugin_credentials *)creds; + if (c->plugin.state != NULL && c->plugin.destroy != NULL) { + c->plugin.destroy(c->plugin.state); + } +} + +static void plugin_md_request_metadata_ready(void *request, + const grpc_metadata *md, + size_t num_md, + grpc_status_code status, + const char *error_details) { + /* called from application code */ + grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; + grpc_metadata_plugin_request *r = (grpc_metadata_plugin_request *)request; + if (status != GRPC_STATUS_OK) { + if (error_details != NULL) { + gpr_log(GPR_ERROR, "Getting metadata from plugin failed with error: %s", + error_details); + } + r->cb(&exec_ctx, r->user_data, NULL, 0, GRPC_CREDENTIALS_ERROR); + } else { + size_t i; + grpc_credentials_md *md_array = NULL; + if (num_md > 0) { + md_array = gpr_malloc(num_md * sizeof(grpc_credentials_md)); + for (i = 0; i < num_md; i++) { + md_array[i].key = gpr_slice_from_copied_string(md[i].key); + md_array[i].value = + gpr_slice_from_copied_buffer(md[i].value, md[i].value_length); + } + } + r->cb(&exec_ctx, r->user_data, md_array, num_md, GRPC_CREDENTIALS_OK); + if (md_array != NULL) { + for (i = 0; i < num_md; i++) { + gpr_slice_unref(md_array[i].key); + gpr_slice_unref(md_array[i].value); + } + gpr_free(md_array); + } + } + gpr_free(r); + grpc_exec_ctx_finish(&exec_ctx); +} + +static void plugin_get_request_metadata(grpc_exec_ctx *exec_ctx, + grpc_call_credentials *creds, + grpc_pollset *pollset, + grpc_auth_metadata_context context, + grpc_credentials_metadata_cb cb, + void *user_data) { + grpc_plugin_credentials *c = (grpc_plugin_credentials *)creds; + if (c->plugin.get_metadata != NULL) { + grpc_metadata_plugin_request *request = gpr_malloc(sizeof(*request)); + memset(request, 0, sizeof(*request)); + request->user_data = user_data; + request->cb = cb; + c->plugin.get_metadata(c->plugin.state, context, + plugin_md_request_metadata_ready, request); + } else { + cb(exec_ctx, user_data, NULL, 0, GRPC_CREDENTIALS_OK); + } +} + +static grpc_call_credentials_vtable plugin_vtable = { + plugin_destruct, plugin_get_request_metadata}; + +grpc_call_credentials *grpc_metadata_credentials_create_from_plugin( + grpc_metadata_credentials_plugin plugin, void *reserved) { + grpc_plugin_credentials *c = gpr_malloc(sizeof(*c)); + GRPC_API_TRACE("grpc_metadata_credentials_create_from_plugin(reserved=%p)", 1, + (reserved)); + GPR_ASSERT(reserved == NULL); + memset(c, 0, sizeof(*c)); + c->base.type = plugin.type; + c->base.vtable = &plugin_vtable; + gpr_ref_init(&c->base.refcount, 1); + c->plugin = plugin; + return &c->base; +} diff --git a/src/core/lib/security/credentials/plugin/plugin_credentials.h b/src/core/lib/security/credentials/plugin/plugin_credentials.h new file mode 100644 index 0000000000..89073cb3d1 --- /dev/null +++ b/src/core/lib/security/credentials/plugin/plugin_credentials.h @@ -0,0 +1,45 @@ +/* + * + * Copyright 2016, 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. + * + */ + +#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_PLUGIN_PLUGIN_CREDENTIALS_H +#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_PLUGIN_PLUGIN_CREDENTIALS_H + +#include "src/core/lib/security/credentials/credentials.h" + +typedef struct { + grpc_call_credentials base; + grpc_metadata_credentials_plugin plugin; + grpc_credentials_md_store *plugin_md; +} grpc_plugin_credentials; + +#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_PLUGIN_PLUGIN_CREDENTIALS_H */ diff --git a/src/core/lib/security/credentials/ssl/ssl_credentials.c b/src/core/lib/security/credentials/ssl/ssl_credentials.c new file mode 100644 index 0000000000..545bca9d98 --- /dev/null +++ b/src/core/lib/security/credentials/ssl/ssl_credentials.c @@ -0,0 +1,240 @@ +/* + * + * Copyright 2016, 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/ssl/ssl_credentials.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/surface/api_trace.h" + +#include <grpc/support/alloc.h> +#include <grpc/support/log.h> + +// +// Utils +// + +static void ssl_copy_key_material(const char *input, unsigned char **output, + size_t *output_size) { + *output_size = strlen(input); + *output = gpr_malloc(*output_size); + memcpy(*output, input, *output_size); +} + +// +// SSL Channel Credentials. +// + +static void ssl_destruct(grpc_channel_credentials *creds) { + grpc_ssl_credentials *c = (grpc_ssl_credentials *)creds; + if (c->config.pem_root_certs != NULL) gpr_free(c->config.pem_root_certs); + if (c->config.pem_private_key != NULL) gpr_free(c->config.pem_private_key); + if (c->config.pem_cert_chain != NULL) gpr_free(c->config.pem_cert_chain); +} + +static grpc_security_status ssl_create_security_connector( + 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; + size_t i = 0; + const char *overridden_target_name = NULL; + grpc_arg new_arg; + + for (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( + call_creds, &c->config, target, overridden_target_name, sc); + if (status != GRPC_SECURITY_OK) { + return status; + } + new_arg.type = GRPC_ARG_STRING; + new_arg.key = GRPC_ARG_HTTP2_SCHEME; + new_arg.value.string = "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}; + +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) { + ssl_copy_key_material(pem_root_certs, &config->pem_root_certs, + &config->pem_root_certs_size); + } + if (pem_key_cert_pair != NULL) { + GPR_ASSERT(pem_key_cert_pair->private_key != NULL); + GPR_ASSERT(pem_key_cert_pair->cert_chain != NULL); + ssl_copy_key_material(pem_key_cert_pair->private_key, + &config->pem_private_key, + &config->pem_private_key_size); + ssl_copy_key_material(pem_key_cert_pair->cert_chain, + &config->pem_cert_chain, + &config->pem_cert_chain_size); + } +} + +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 = gpr_malloc(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); + memset(c, 0, sizeof(grpc_ssl_credentials)); + 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_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++) { + if (c->config.pem_private_keys[i] != NULL) { + gpr_free(c->config.pem_private_keys[i]); + } + if (c->config.pem_cert_chains[i] != NULL) { + gpr_free(c->config.pem_cert_chains[i]); + } + } + if (c->config.pem_private_keys != NULL) gpr_free(c->config.pem_private_keys); + if (c->config.pem_private_keys_sizes != NULL) { + gpr_free(c->config.pem_private_keys_sizes); + } + if (c->config.pem_cert_chains != NULL) gpr_free(c->config.pem_cert_chains); + if (c->config.pem_cert_chains_sizes != NULL) { + gpr_free(c->config.pem_cert_chains_sizes); + } + if (c->config.pem_root_certs != NULL) gpr_free(c->config.pem_root_certs); +} + +static grpc_security_status ssl_server_create_security_connector( + 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(&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) { + ssl_copy_key_material(pem_root_certs, &config->pem_root_certs, + &config->pem_root_certs_size); + } + if (num_key_cert_pairs > 0) { + GPR_ASSERT(pem_key_cert_pairs != NULL); + config->pem_private_keys = + gpr_malloc(num_key_cert_pairs * sizeof(unsigned char *)); + config->pem_cert_chains = + gpr_malloc(num_key_cert_pairs * sizeof(unsigned char *)); + config->pem_private_keys_sizes = + gpr_malloc(num_key_cert_pairs * sizeof(size_t)); + config->pem_cert_chains_sizes = + gpr_malloc(num_key_cert_pairs * sizeof(size_t)); + } + 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); + ssl_copy_key_material(pem_key_cert_pairs[i].private_key, + &config->pem_private_keys[i], + &config->pem_private_keys_sizes[i]); + ssl_copy_key_material(pem_key_cert_pairs[i].cert_chain, + &config->pem_cert_chains[i], + &config->pem_cert_chains_sizes[i]); + } +} + +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 = + gpr_malloc(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); + memset(c, 0, sizeof(grpc_ssl_server_credentials)); + 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; +} diff --git a/src/core/lib/security/credentials/ssl/ssl_credentials.h b/src/core/lib/security/credentials/ssl/ssl_credentials.h new file mode 100644 index 0000000000..f23dbdbe49 --- /dev/null +++ b/src/core/lib/security/credentials/ssl/ssl_credentials.h @@ -0,0 +1,48 @@ +/* + * + * Copyright 2016, 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. + * + */ +#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_SSL_SSL_CREDENTIALS_H +#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_SSL_SSL_CREDENTIALS_H + +#include "src/core/lib/security/credentials/credentials.h" + +typedef struct { + grpc_channel_credentials base; + grpc_ssl_config config; +} grpc_ssl_credentials; + +typedef struct { + grpc_server_credentials base; + grpc_ssl_server_config config; +} grpc_ssl_server_credentials; + +#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_SSL_SSL_CREDENTIALS_H */ diff --git a/src/core/lib/security/auth_filters.h b/src/core/lib/security/transport/auth_filters.h index 7fb56c3f3a..f688d4ed21 100644 --- a/src/core/lib/security/auth_filters.h +++ b/src/core/lib/security/transport/auth_filters.h @@ -31,12 +31,12 @@ * */ -#ifndef GRPC_CORE_LIB_SECURITY_AUTH_FILTERS_H -#define GRPC_CORE_LIB_SECURITY_AUTH_FILTERS_H +#ifndef GRPC_CORE_LIB_SECURITY_TRANSPORT_AUTH_FILTERS_H +#define GRPC_CORE_LIB_SECURITY_TRANSPORT_AUTH_FILTERS_H #include "src/core/lib/channel/channel_stack.h" extern const grpc_channel_filter grpc_client_auth_filter; extern const grpc_channel_filter grpc_server_auth_filter; -#endif /* GRPC_CORE_LIB_SECURITY_AUTH_FILTERS_H */ +#endif /* GRPC_CORE_LIB_SECURITY_TRANSPORT_AUTH_FILTERS_H */ diff --git a/src/core/lib/security/client_auth_filter.c b/src/core/lib/security/transport/client_auth_filter.c index 943b1da85c..e3cbcb4433 100644 --- a/src/core/lib/security/client_auth_filter.c +++ b/src/core/lib/security/transport/client_auth_filter.c @@ -31,7 +31,7 @@ * */ -#include "src/core/lib/security/auth_filters.h" +#include "src/core/lib/security/transport/auth_filters.h" #include <string.h> @@ -40,9 +40,9 @@ #include <grpc/support/string_util.h> #include "src/core/lib/channel/channel_stack.h" -#include "src/core/lib/security/credentials.h" -#include "src/core/lib/security/security_connector.h" -#include "src/core/lib/security/security_context.h" +#include "src/core/lib/security/context/security_context.h" +#include "src/core/lib/security/credentials/credentials.h" +#include "src/core/lib/security/transport/security_connector.h" #include "src/core/lib/support/string.h" #include "src/core/lib/surface/call.h" #include "src/core/lib/transport/static_metadata.h" @@ -277,8 +277,8 @@ static void set_pollset(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, } /* Destructor for call_data */ -static void destroy_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem) { +static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, + void *ignored) { call_data *calld = elem->call_data; grpc_call_credentials_unref(calld->creds); if (calld->host != NULL) { diff --git a/src/core/lib/security/handshake.c b/src/core/lib/security/transport/handshake.c index d5fe0c7b7d..6561f4b47d 100644 --- a/src/core/lib/security/handshake.c +++ b/src/core/lib/security/transport/handshake.c @@ -31,7 +31,7 @@ * */ -#include "src/core/lib/security/handshake.h" +#include "src/core/lib/security/transport/handshake.h" #include <stdbool.h> #include <string.h> @@ -39,8 +39,8 @@ #include <grpc/support/alloc.h> #include <grpc/support/log.h> #include <grpc/support/slice_buffer.h> -#include "src/core/lib/security/secure_endpoint.h" -#include "src/core/lib/security/security_context.h" +#include "src/core/lib/security/context/security_context.h" +#include "src/core/lib/security/transport/secure_endpoint.h" #define GRPC_INITIAL_HANDSHAKE_BUFFER_SIZE 256 diff --git a/src/core/lib/security/handshake.h b/src/core/lib/security/transport/handshake.h index f34476ed49..6ed850b315 100644 --- a/src/core/lib/security/handshake.h +++ b/src/core/lib/security/transport/handshake.h @@ -31,11 +31,11 @@ * */ -#ifndef GRPC_CORE_LIB_SECURITY_HANDSHAKE_H -#define GRPC_CORE_LIB_SECURITY_HANDSHAKE_H +#ifndef GRPC_CORE_LIB_SECURITY_TRANSPORT_HANDSHAKE_H +#define GRPC_CORE_LIB_SECURITY_TRANSPORT_HANDSHAKE_H #include "src/core/lib/iomgr/endpoint.h" -#include "src/core/lib/security/security_connector.h" +#include "src/core/lib/security/transport/security_connector.h" /* Calls the callback upon completion. Takes owership of handshaker. */ void grpc_do_security_handshake(grpc_exec_ctx *exec_ctx, @@ -48,4 +48,4 @@ void grpc_do_security_handshake(grpc_exec_ctx *exec_ctx, void grpc_security_handshake_shutdown(grpc_exec_ctx *exec_ctx, void *handshake); -#endif /* GRPC_CORE_LIB_SECURITY_HANDSHAKE_H */ +#endif /* GRPC_CORE_LIB_SECURITY_TRANSPORT_HANDSHAKE_H */ diff --git a/src/core/lib/security/secure_endpoint.c b/src/core/lib/security/transport/secure_endpoint.c index 27b0e98910..4438c8e559 100644 --- a/src/core/lib/security/secure_endpoint.c +++ b/src/core/lib/security/transport/secure_endpoint.c @@ -31,7 +31,7 @@ * */ -#include "src/core/lib/security/secure_endpoint.h" +#include "src/core/lib/security/transport/secure_endpoint.h" #include <grpc/support/alloc.h> #include <grpc/support/log.h> #include <grpc/support/slice.h> diff --git a/src/core/lib/security/secure_endpoint.h b/src/core/lib/security/transport/secure_endpoint.h index ff1c6639de..d00075b769 100644 --- a/src/core/lib/security/secure_endpoint.h +++ b/src/core/lib/security/transport/secure_endpoint.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_SECURITY_SECURE_ENDPOINT_H -#define GRPC_CORE_LIB_SECURITY_SECURE_ENDPOINT_H +#ifndef GRPC_CORE_LIB_SECURITY_TRANSPORT_SECURE_ENDPOINT_H +#define GRPC_CORE_LIB_SECURITY_TRANSPORT_SECURE_ENDPOINT_H #include <grpc/support/slice.h> #include "src/core/lib/iomgr/endpoint.h" @@ -46,4 +46,4 @@ grpc_endpoint *grpc_secure_endpoint_create( struct tsi_frame_protector *protector, grpc_endpoint *to_wrap, gpr_slice *leftover_slices, size_t leftover_nslices); -#endif /* GRPC_CORE_LIB_SECURITY_SECURE_ENDPOINT_H */ +#endif /* GRPC_CORE_LIB_SECURITY_TRANSPORT_SECURE_ENDPOINT_H */ diff --git a/src/core/lib/security/security_connector.c b/src/core/lib/security/transport/security_connector.c index 2d2023bdf5..72173e7c9d 100644 --- a/src/core/lib/security/security_connector.c +++ b/src/core/lib/security/transport/security_connector.c @@ -31,7 +31,7 @@ * */ -#include "src/core/lib/security/security_connector.h" +#include "src/core/lib/security/transport/security_connector.h" #include <stdbool.h> #include <string.h> @@ -43,10 +43,10 @@ #include <grpc/support/string_util.h> #include "src/core/ext/transport/chttp2/alpn/alpn.h" -#include "src/core/lib/security/credentials.h" -#include "src/core/lib/security/handshake.h" -#include "src/core/lib/security/secure_endpoint.h" -#include "src/core/lib/security/security_context.h" +#include "src/core/lib/security/context/security_context.h" +#include "src/core/lib/security/credentials/credentials.h" +#include "src/core/lib/security/transport/handshake.h" +#include "src/core/lib/security/transport/secure_endpoint.h" #include "src/core/lib/support/env.h" #include "src/core/lib/support/load_file.h" #include "src/core/lib/support/string.h" diff --git a/src/core/lib/security/security_connector.h b/src/core/lib/security/transport/security_connector.h index 2c893cd5e9..84e586deaa 100644 --- a/src/core/lib/security/security_connector.h +++ b/src/core/lib/security/transport/security_connector.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_H -#define GRPC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_H +#ifndef GRPC_CORE_LIB_SECURITY_TRANSPORT_SECURITY_CONNECTOR_H +#define GRPC_CORE_LIB_SECURITY_TRANSPORT_SECURITY_CONNECTOR_H #include <grpc/grpc_security.h> #include "src/core/lib/iomgr/endpoint.h" @@ -263,4 +263,4 @@ tsi_peer tsi_shallow_peer_from_ssl_auth_context( const grpc_auth_context *auth_context); void tsi_shallow_peer_destruct(tsi_peer *peer); -#endif /* GRPC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_H */ +#endif /* GRPC_CORE_LIB_SECURITY_TRANSPORT_SECURITY_CONNECTOR_H */ diff --git a/src/core/lib/security/server_auth_filter.c b/src/core/lib/security/transport/server_auth_filter.c index 7844dc87cb..006a30f0c6 100644 --- a/src/core/lib/security/server_auth_filter.c +++ b/src/core/lib/security/transport/server_auth_filter.c @@ -33,9 +33,9 @@ #include <string.h> -#include "src/core/lib/security/auth_filters.h" -#include "src/core/lib/security/credentials.h" -#include "src/core/lib/security/security_context.h" +#include "src/core/lib/security/context/security_context.h" +#include "src/core/lib/security/credentials/credentials.h" +#include "src/core/lib/security/transport/auth_filters.h" #include <grpc/support/alloc.h> #include <grpc/support/log.h> @@ -224,8 +224,8 @@ static void set_pollset(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, grpc_pollset *pollset) {} /* Destructor for call_data */ -static void destroy_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem) {} +static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, + void *ignored) {} /* Constructor for channel_data */ static void init_channel_elem(grpc_exec_ctx *exec_ctx, diff --git a/src/core/lib/security/b64.c b/src/core/lib/security/util/b64.c index 87f0e05280..9da42e4e73 100644 --- a/src/core/lib/security/b64.c +++ b/src/core/lib/security/util/b64.c @@ -31,7 +31,7 @@ * */ -#include "src/core/lib/security/b64.h" +#include "src/core/lib/security/util/b64.h" #include <stdint.h> #include <string.h> diff --git a/src/core/lib/security/b64.h b/src/core/lib/security/util/b64.h index c515e7af2c..6908095287 100644 --- a/src/core/lib/security/b64.h +++ b/src/core/lib/security/util/b64.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_SECURITY_B64_H -#define GRPC_CORE_LIB_SECURITY_B64_H +#ifndef GRPC_CORE_LIB_SECURITY_UTIL_B64_H +#define GRPC_CORE_LIB_SECURITY_UTIL_B64_H #include <grpc/support/slice.h> @@ -49,4 +49,4 @@ gpr_slice grpc_base64_decode(const char *b64, int url_safe); gpr_slice grpc_base64_decode_with_len(const char *b64, size_t b64_len, int url_safe); -#endif /* GRPC_CORE_LIB_SECURITY_B64_H */ +#endif /* GRPC_CORE_LIB_SECURITY_UTIL_B64_H */ diff --git a/src/core/lib/security/util/json_util.c b/src/core/lib/security/util/json_util.c new file mode 100644 index 0000000000..7eed039baa --- /dev/null +++ b/src/core/lib/security/util/json_util.c @@ -0,0 +1,61 @@ +/* + * + * 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/util/json_util.h" + +#include <string.h> + +#include <grpc/support/log.h> +#include <grpc/support/string_util.h> + +const char *grpc_json_get_string_property(const grpc_json *json, + const char *prop_name) { + grpc_json *child; + for (child = json->child; child != NULL; child = child->next) { + if (strcmp(child->key, prop_name) == 0) break; + } + if (child == NULL || child->type != GRPC_JSON_STRING) { + gpr_log(GPR_ERROR, "Invalid or missing %s property.", prop_name); + return NULL; + } + return child->value; +} + +bool grpc_copy_json_string_property(const grpc_json *json, + const char *prop_name, + char **copied_value) { + const char *prop_value = grpc_json_get_string_property(json, prop_name); + if (prop_value == NULL) return false; + *copied_value = gpr_strdup(prop_value); + return true; +} diff --git a/src/core/lib/security/util/json_util.h b/src/core/lib/security/util/json_util.h new file mode 100644 index 0000000000..137900593f --- /dev/null +++ b/src/core/lib/security/util/json_util.h @@ -0,0 +1,55 @@ +/* + * + * 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. + * + */ + +#ifndef GRPC_CORE_LIB_SECURITY_UTIL_JSON_UTIL_H +#define GRPC_CORE_LIB_SECURITY_UTIL_JSON_UTIL_H + +#include <stdbool.h> + +#include "src/core/lib/json/json.h" + +// Constants. +#define GRPC_AUTH_JSON_TYPE_INVALID "invalid" +#define GRPC_AUTH_JSON_TYPE_SERVICE_ACCOUNT "service_account" +#define GRPC_AUTH_JSON_TYPE_AUTHORIZED_USER "authorized_user" + +// Gets a child property from a json node. +const char *grpc_json_get_string_property(const grpc_json *json, + const char *prop_name); + +// Copies the value of the json child property specified by prop_name. +// Returns false if the property was not found. +bool grpc_copy_json_string_property(const grpc_json *json, + const char *prop_name, char **copied_value); + +#endif /* GRPC_CORE_LIB_SECURITY_UTIL_JSON_UTIL_H */ |