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/*
*
* 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_INTERNAL_CORE_TSI_TRANSPORT_SECURITY_H
#define GRPC_INTERNAL_CORE_TSI_TRANSPORT_SECURITY_H
#include "src/core/tsi/transport_security_interface.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Base for tsi_frame_protector implementations.
See transport_security_interface.h for documentation. */
typedef struct {
tsi_result (*protect)(tsi_frame_protector* self,
const unsigned char* unprotected_bytes,
size_t* unprotected_bytes_size,
unsigned char* protected_output_frames,
size_t* protected_output_frames_size);
tsi_result (*protect_flush)(tsi_frame_protector* self,
unsigned char* protected_output_frames,
size_t* protected_output_frames_size,
size_t* still_pending_size);
tsi_result (*unprotect)(tsi_frame_protector* self,
const unsigned char* protected_frames_bytes,
size_t* protected_frames_bytes_size,
unsigned char* unprotected_bytes,
size_t* unprotected_bytes_size);
void (*destroy)(tsi_frame_protector* self);
} tsi_frame_protector_vtable;
struct tsi_frame_protector {
const tsi_frame_protector_vtable* vtable;
};
/* Base for tsi_handshaker implementations.
See transport_security_interface.h for documentation. */
typedef struct {
tsi_result (*get_bytes_to_send_to_peer)(tsi_handshaker* self,
unsigned char* bytes,
size_t* bytes_size);
tsi_result (*process_bytes_from_peer)(tsi_handshaker* self,
const unsigned char* bytes,
size_t* bytes_size);
tsi_result (*get_result)(tsi_handshaker* self);
tsi_result (*extract_peer)(tsi_handshaker* self, tsi_peer* peer);
tsi_result (*create_frame_protector)(tsi_handshaker* self,
size_t* max_protected_frame_size,
tsi_frame_protector** protector);
void (*destroy)(tsi_handshaker* self);
} tsi_handshaker_vtable;
struct tsi_handshaker {
const tsi_handshaker_vtable* vtable;
int frame_protector_created;
};
/* Peer and property construction/destruction functions. */
tsi_result tsi_construct_peer(size_t property_count, tsi_peer* peer);
tsi_peer_property tsi_init_peer_property(void);
void tsi_peer_property_destruct(tsi_peer_property* property);
tsi_result tsi_construct_signed_integer_peer_property(
const char* name, int64_t value, tsi_peer_property* property);
tsi_result tsi_construct_unsigned_integer_peer_property(
const char* name, uint64_t value, tsi_peer_property* property);
tsi_result tsi_construct_real_peer_property(const char* name, double value,
tsi_peer_property* property);
tsi_result tsi_construct_string_peer_property(const char* name,
const char* value,
size_t value_length,
tsi_peer_property* property);
tsi_result tsi_construct_allocated_string_peer_property(
const char* name, size_t value_length, tsi_peer_property* property);
tsi_result tsi_construct_string_peer_property_from_cstring(
const char* name, const char* value, tsi_peer_property* property);
tsi_result tsi_construct_list_peer_property(const char* name,
size_t child_count,
tsi_peer_property* property);
/* Utils. */
char* tsi_strdup(const char* src); /* Sadly, no strdup in C89. */
#ifdef __cplusplus
}
#endif
#endif /* GRPC_INTERNAL_CORE_TSI_TRANSPORT_SECURITY_H */
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