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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef GRPC_CORE_TSI_TRANSPORT_SECURITY_GRPC_H
#define GRPC_CORE_TSI_TRANSPORT_SECURITY_GRPC_H
#include <grpc/support/port_platform.h>
#include <grpc/slice_buffer.h>
#include "src/core/tsi/transport_security.h"
/* This method creates a tsi_zero_copy_grpc_protector object. It return TSI_OK
assuming there is no fatal error.
The caller is responsible for destroying the protector. */
tsi_result tsi_handshaker_result_create_zero_copy_grpc_protector(
const tsi_handshaker_result* self, size_t* max_output_protected_frame_size,
tsi_zero_copy_grpc_protector** protector);
/* -- tsi_zero_copy_grpc_protector object -- */
/* Outputs protected frames.
- unprotected_slices is the unprotected data to be protected.
- protected_slices is the protected output frames. One or more frames
may be produced in this protect function.
- This method returns TSI_OK in case of success or a specific error code in
case of failure. */
tsi_result tsi_zero_copy_grpc_protector_protect(
tsi_zero_copy_grpc_protector* self, grpc_slice_buffer* unprotected_slices,
grpc_slice_buffer* protected_slices);
/* Outputs unprotected bytes.
- protected_slices is the bytes of protected frames.
- unprotected_slices is the unprotected output data.
- This method returns TSI_OK in case of success. Success includes cases where
there is not enough data to output in which case unprotected_slices has 0
bytes. */
tsi_result tsi_zero_copy_grpc_protector_unprotect(
tsi_zero_copy_grpc_protector* self, grpc_slice_buffer* protected_slices,
grpc_slice_buffer* unprotected_slices);
/* Destroys the tsi_zero_copy_grpc_protector object. */
void tsi_zero_copy_grpc_protector_destroy(tsi_zero_copy_grpc_protector* self);
/* Base for tsi_zero_copy_grpc_protector implementations. */
typedef struct {
tsi_result (*protect)(tsi_zero_copy_grpc_protector* self,
grpc_slice_buffer* unprotected_slices,
grpc_slice_buffer* protected_slices);
tsi_result (*unprotect)(tsi_zero_copy_grpc_protector* self,
grpc_slice_buffer* protected_slices,
grpc_slice_buffer* unprotected_slices);
void (*destroy)(tsi_zero_copy_grpc_protector* self);
} tsi_zero_copy_grpc_protector_vtable;
struct tsi_zero_copy_grpc_protector {
const tsi_zero_copy_grpc_protector_vtable* vtable;
};
#endif /* GRPC_CORE_TSI_TRANSPORT_SECURITY_GRPC_H */
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