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/*
*
* Copyright 2018 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.
*
*/
#include <grpc/support/port_platform.h>
#include "src/core/tsi/alts/handshaker/transport_security_common_api.h"
bool grpc_gcp_rpc_protocol_versions_set_max(
grpc_gcp_rpc_protocol_versions* versions, uint32_t max_major,
uint32_t max_minor) {
if (versions == nullptr) {
gpr_log(GPR_ERROR,
"versions is nullptr in "
"grpc_gcp_rpc_protocol_versions_set_max().");
return false;
}
versions->has_max_rpc_version = true;
versions->max_rpc_version.has_major = true;
versions->max_rpc_version.has_minor = true;
versions->max_rpc_version.major = max_major;
versions->max_rpc_version.minor = max_minor;
return true;
}
bool grpc_gcp_rpc_protocol_versions_set_min(
grpc_gcp_rpc_protocol_versions* versions, uint32_t min_major,
uint32_t min_minor) {
if (versions == nullptr) {
gpr_log(GPR_ERROR,
"versions is nullptr in "
"grpc_gcp_rpc_protocol_versions_set_min().");
return false;
}
versions->has_min_rpc_version = true;
versions->min_rpc_version.has_major = true;
versions->min_rpc_version.has_minor = true;
versions->min_rpc_version.major = min_major;
versions->min_rpc_version.minor = min_minor;
return true;
}
size_t grpc_gcp_rpc_protocol_versions_encode_length(
const grpc_gcp_rpc_protocol_versions* versions) {
if (versions == nullptr) {
gpr_log(GPR_ERROR,
"Invalid nullptr arguments to "
"grpc_gcp_rpc_protocol_versions_encode_length().");
return 0;
}
pb_ostream_t size_stream;
memset(&size_stream, 0, sizeof(pb_ostream_t));
if (!pb_encode(&size_stream, grpc_gcp_RpcProtocolVersions_fields, versions)) {
gpr_log(GPR_ERROR, "nanopb error: %s", PB_GET_ERROR(&size_stream));
return 0;
}
return size_stream.bytes_written;
}
bool grpc_gcp_rpc_protocol_versions_encode_to_raw_bytes(
const grpc_gcp_rpc_protocol_versions* versions, uint8_t* bytes,
size_t bytes_length) {
if (versions == nullptr || bytes == nullptr || bytes_length == 0) {
gpr_log(GPR_ERROR,
"Invalid nullptr arguments to "
"grpc_gcp_rpc_protocol_versions_encode_to_raw_bytes().");
return false;
}
pb_ostream_t output_stream = pb_ostream_from_buffer(bytes, bytes_length);
if (!pb_encode(&output_stream, grpc_gcp_RpcProtocolVersions_fields,
versions)) {
gpr_log(GPR_ERROR, "nanopb error: %s", PB_GET_ERROR(&output_stream));
return false;
}
return true;
}
bool grpc_gcp_rpc_protocol_versions_encode(
const grpc_gcp_rpc_protocol_versions* versions, grpc_slice* slice) {
if (versions == nullptr || slice == nullptr) {
gpr_log(GPR_ERROR,
"Invalid nullptr arguments to "
"grpc_gcp_rpc_protocol_versions_encode().");
return false;
}
size_t encoded_length =
grpc_gcp_rpc_protocol_versions_encode_length(versions);
if (encoded_length == 0) return false;
*slice = grpc_slice_malloc(encoded_length);
return grpc_gcp_rpc_protocol_versions_encode_to_raw_bytes(
versions, GRPC_SLICE_START_PTR(*slice), encoded_length);
}
bool grpc_gcp_rpc_protocol_versions_decode(
grpc_slice slice, grpc_gcp_rpc_protocol_versions* versions) {
if (versions == nullptr) {
gpr_log(GPR_ERROR,
"version is nullptr in "
"grpc_gcp_rpc_protocol_versions_decode().");
return false;
}
pb_istream_t stream = pb_istream_from_buffer(GRPC_SLICE_START_PTR(slice),
GRPC_SLICE_LENGTH(slice));
if (!pb_decode(&stream, grpc_gcp_RpcProtocolVersions_fields, versions)) {
gpr_log(GPR_ERROR, "nanopb error: %s", PB_GET_ERROR(&stream));
return false;
}
return true;
}
bool grpc_gcp_rpc_protocol_versions_copy(
const grpc_gcp_rpc_protocol_versions* src,
grpc_gcp_rpc_protocol_versions* dst) {
if ((src == nullptr && dst != nullptr) ||
(src != nullptr && dst == nullptr)) {
gpr_log(GPR_ERROR,
"Invalid arguments to "
"grpc_gcp_rpc_protocol_versions_copy().");
return false;
}
if (src == nullptr) {
return true;
}
grpc_gcp_rpc_protocol_versions_set_max(dst, src->max_rpc_version.major,
src->max_rpc_version.minor);
grpc_gcp_rpc_protocol_versions_set_min(dst, src->min_rpc_version.major,
src->min_rpc_version.minor);
return true;
}
namespace grpc_core {
namespace internal {
int grpc_gcp_rpc_protocol_version_compare(
const grpc_gcp_rpc_protocol_versions_version* v1,
const grpc_gcp_rpc_protocol_versions_version* v2) {
if ((v1->major > v2->major) ||
(v1->major == v2->major && v1->minor > v2->minor)) {
return 1;
}
if ((v1->major < v2->major) ||
(v1->major == v2->major && v1->minor < v2->minor)) {
return -1;
}
return 0;
}
} // namespace internal
} // namespace grpc_core
bool grpc_gcp_rpc_protocol_versions_check(
const grpc_gcp_rpc_protocol_versions* local_versions,
const grpc_gcp_rpc_protocol_versions* peer_versions,
grpc_gcp_rpc_protocol_versions_version* highest_common_version) {
if (local_versions == nullptr || peer_versions == nullptr) {
gpr_log(GPR_ERROR,
"Invalid arguments to "
"grpc_gcp_rpc_protocol_versions_check().");
return false;
}
/* max_common_version is MIN(local.max, peer.max) */
const grpc_gcp_rpc_protocol_versions_version* max_common_version =
grpc_core::internal::grpc_gcp_rpc_protocol_version_compare(
&local_versions->max_rpc_version, &peer_versions->max_rpc_version) > 0
? &peer_versions->max_rpc_version
: &local_versions->max_rpc_version;
/* min_common_version is MAX(local.min, peer.min) */
const grpc_gcp_rpc_protocol_versions_version* min_common_version =
grpc_core::internal::grpc_gcp_rpc_protocol_version_compare(
&local_versions->min_rpc_version, &peer_versions->min_rpc_version) > 0
? &local_versions->min_rpc_version
: &peer_versions->min_rpc_version;
bool result = grpc_core::internal::grpc_gcp_rpc_protocol_version_compare(
max_common_version, min_common_version) >= 0
? true
: false;
if (result && highest_common_version != nullptr) {
memcpy(highest_common_version, max_common_version,
sizeof(grpc_gcp_rpc_protocol_versions_version));
}
return result;
}
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