diff options
Diffstat (limited to 'src/core/tsi/alts/handshaker/alts_handshaker_service_api_util.cc')
-rw-r--r-- | src/core/tsi/alts/handshaker/alts_handshaker_service_api_util.cc | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/core/tsi/alts/handshaker/alts_handshaker_service_api_util.cc b/src/core/tsi/alts/handshaker/alts_handshaker_service_api_util.cc new file mode 100644 index 0000000000..e0e4184686 --- /dev/null +++ b/src/core/tsi/alts/handshaker/alts_handshaker_service_api_util.cc @@ -0,0 +1,143 @@ +/* + * + * 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/alts_handshaker_service_api_util.h" + +void add_repeated_field(repeated_field** head, const void* data) { + repeated_field* field = + static_cast<repeated_field*>(gpr_zalloc(sizeof(*field))); + field->data = data; + if (*head == nullptr) { + *head = field; + (*head)->next = nullptr; + } else { + field->next = *head; + *head = field; + } +} + +void destroy_repeated_field_list_identity(repeated_field* head) { + repeated_field* field = head; + while (field != nullptr) { + repeated_field* next_field = field->next; + const grpc_gcp_identity* identity = + static_cast<const grpc_gcp_identity*>(field->data); + destroy_slice(static_cast<grpc_slice*>(identity->hostname.arg)); + destroy_slice(static_cast<grpc_slice*>(identity->service_account.arg)); + gpr_free((void*)identity); + gpr_free(field); + field = next_field; + } +} + +void destroy_repeated_field_list_string(repeated_field* head) { + repeated_field* field = head; + while (field != nullptr) { + repeated_field* next_field = field->next; + destroy_slice((grpc_slice*)field->data); + gpr_free(field); + field = next_field; + } +} + +grpc_slice* create_slice(const char* data, size_t size) { + grpc_slice slice = grpc_slice_from_copied_buffer(data, size); + grpc_slice* cb_slice = + static_cast<grpc_slice*>(gpr_zalloc(sizeof(*cb_slice))); + memcpy(cb_slice, &slice, sizeof(*cb_slice)); + return cb_slice; +} + +void destroy_slice(grpc_slice* slice) { + if (slice != nullptr) { + grpc_slice_unref(*slice); + gpr_free(slice); + } +} + +bool encode_string_or_bytes_cb(pb_ostream_t* stream, const pb_field_t* field, + void* const* arg) { + grpc_slice* slice = static_cast<grpc_slice*>(*arg); + if (!pb_encode_tag_for_field(stream, field)) return false; + return pb_encode_string(stream, GRPC_SLICE_START_PTR(*slice), + GRPC_SLICE_LENGTH(*slice)); +} + +bool encode_repeated_identity_cb(pb_ostream_t* stream, const pb_field_t* field, + void* const* arg) { + repeated_field* var = static_cast<repeated_field*>(*arg); + while (var != nullptr) { + if (!pb_encode_tag_for_field(stream, field)) return false; + if (!pb_encode_submessage(stream, grpc_gcp_Identity_fields, + (grpc_gcp_identity*)var->data)) + return false; + var = var->next; + } + return true; +} + +bool encode_repeated_string_cb(pb_ostream_t* stream, const pb_field_t* field, + void* const* arg) { + repeated_field* var = static_cast<repeated_field*>(*arg); + while (var != nullptr) { + if (!pb_encode_tag_for_field(stream, field)) return false; + const grpc_slice* slice = static_cast<const grpc_slice*>(var->data); + if (!pb_encode_string(stream, GRPC_SLICE_START_PTR(*slice), + GRPC_SLICE_LENGTH(*slice))) + return false; + var = var->next; + } + return true; +} + +bool decode_string_or_bytes_cb(pb_istream_t* stream, const pb_field_t* field, + void** arg) { + grpc_slice slice = grpc_slice_malloc(stream->bytes_left); + grpc_slice* cb_slice = + static_cast<grpc_slice*>(gpr_zalloc(sizeof(*cb_slice))); + memcpy(cb_slice, &slice, sizeof(*cb_slice)); + if (!pb_read(stream, GRPC_SLICE_START_PTR(*cb_slice), stream->bytes_left)) + return false; + *arg = cb_slice; + return true; +} + +bool decode_repeated_identity_cb(pb_istream_t* stream, const pb_field_t* field, + void** arg) { + grpc_gcp_identity* identity = + static_cast<grpc_gcp_identity*>(gpr_zalloc(sizeof(*identity))); + identity->hostname.funcs.decode = decode_string_or_bytes_cb; + identity->service_account.funcs.decode = decode_string_or_bytes_cb; + add_repeated_field(reinterpret_cast<repeated_field**>(arg), identity); + if (!pb_decode(stream, grpc_gcp_Identity_fields, identity)) return false; + return true; +} + +bool decode_repeated_string_cb(pb_istream_t* stream, const pb_field_t* field, + void** arg) { + grpc_slice slice = grpc_slice_malloc(stream->bytes_left); + grpc_slice* cb_slice = + static_cast<grpc_slice*>(gpr_zalloc(sizeof(*cb_slice))); + memcpy(cb_slice, &slice, sizeof(grpc_slice)); + if (!pb_read(stream, GRPC_SLICE_START_PTR(*cb_slice), stream->bytes_left)) + return false; + add_repeated_field(reinterpret_cast<repeated_field**>(arg), cb_slice); + return true; +} |