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/*
*
* Copyright 2014, 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_INTERNAL_SECURITY_CREDENTIALS_H__
#define __GRPC_INTERNAL_SECURITY_CREDENTIALS_H__
#include "src/core/transport/stream_op.h"
#include <grpc/grpc.h>
#include <grpc/grpc_security.h>
#include <grpc/support/sync.h>
struct grpc_httpcli_response;
/* --- Constants. --- */
typedef enum {
GRPC_CREDENTIALS_OK = 0,
GRPC_CREDENTIALS_ERROR
} grpc_credentials_status;
#define GRPC_CREDENTIALS_TYPE_SSL "Ssl"
#define GRPC_CREDENTIALS_TYPE_OAUTH2 "Oauth2"
#define GRPC_CREDENTIALS_TYPE_IAM "Iam"
#define GRPC_CREDENTIALS_TYPE_COMPOSITE "Composite"
#define GRPC_CREDENTIALS_TYPE_FAKE_TRANSPORT_SECURITY "FakeTransportSecurity"
#define GRPC_AUTHORIZATION_METADATA_KEY "Authorization"
#define GRPC_IAM_AUTHORIZATION_TOKEN_METADATA_KEY \
"x-goog-iam-authorization-token"
#define GRPC_IAM_AUTHORITY_SELECTOR_METADATA_KEY "x-goog-iam-authority-selector"
/* --- grpc_credentials. --- */
typedef void (*grpc_credentials_metadata_cb)(void *user_data,
grpc_mdelem **md_elems,
size_t num_md,
grpc_credentials_status status);
typedef struct {
void (*destroy)(grpc_credentials *c);
int (*has_request_metadata)(const grpc_credentials *c);
int (*has_request_metadata_only)(const grpc_credentials *c);
void (*get_request_metadata)(grpc_credentials *c,
grpc_credentials_metadata_cb cb,
void *user_data);
} grpc_credentials_vtable;
struct grpc_credentials {
const grpc_credentials_vtable *vtable;
const char *type;
gpr_refcount refcount;
};
grpc_credentials *grpc_credentials_ref(grpc_credentials *creds);
void grpc_credentials_unref(grpc_credentials *creds);
int grpc_credentials_has_request_metadata(grpc_credentials *creds);
int grpc_credentials_has_request_metadata_only(grpc_credentials *creds);
void grpc_credentials_get_request_metadata(grpc_credentials *creds,
grpc_credentials_metadata_cb cb,
void *user_data);
typedef struct {
unsigned char *pem_private_key;
size_t pem_private_key_size;
unsigned char *pem_cert_chain;
size_t pem_cert_chain_size;
unsigned char *pem_root_certs;
size_t pem_root_certs_size;
} grpc_ssl_config;
const grpc_ssl_config *grpc_ssl_credentials_get_config(
const grpc_credentials *ssl_creds);
typedef struct {
grpc_credentials **creds_array;
size_t num_creds;
} grpc_credentials_array;
const grpc_credentials_array *grpc_composite_credentials_get_credentials(
grpc_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_credentials *grpc_credentials_contains_type(
grpc_credentials *creds, const char *type,
grpc_credentials **composite_creds);
/* Exposed for testing only. */
grpc_credentials_status
grpc_oauth2_token_fetcher_credentials_parse_server_response(
const struct grpc_httpcli_response *response, grpc_mdctx *ctx,
grpc_mdelem **token_elem, gpr_timespec *token_lifetime);
/* Simulates an oauth2 token fetch with the specified value for testing. */
grpc_credentials *grpc_fake_oauth2_credentials_create(
const char *token_md_value, int is_async);
/* --- grpc_server_credentials. --- */
typedef struct {
void (*destroy)(grpc_server_credentials *c);
} grpc_server_credentials_vtable;
struct grpc_server_credentials {
const grpc_server_credentials_vtable *vtable;
const char *type;
};
/* TODO(jboeuf): Have an ssl_server_config that can contain multiple key/cert
pairs. */
const grpc_ssl_config *grpc_ssl_server_credentials_get_config(
const grpc_server_credentials *ssl_creds);
#endif /* __GRPC_INTERNAL_SECURITY_CREDENTIALS_H__ */
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