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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,220 @@ | ||
| /******************************************************************************* | ||
| * (c) 2018 - 2023 Zondax AG | ||
| * | ||
| * 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 "parser_impl_masp.h" | ||
|
|
||
| #include "parser_impl_common.h" | ||
| #include "parser_txdef.h" | ||
|
|
||
| #define ASSET_ID_LEN 32 | ||
| #define ANCHOR_LEN 32 | ||
| #define TRANSPARENT_ADDRESS_LEN 20 | ||
| #define SHIELDED_OUTPUTS_LEN 756 | ||
| #define INT_128_LEN 16 | ||
| #define ZKPROFF_LEN 192 | ||
| #define AUTH_SIG_LEN 64 | ||
| #define SHIELDED_SPENDS_LEN 96 | ||
| #define SHIELDED_CONVERTS_LEN 32 | ||
|
|
||
| static parser_error_t parse_sapling_bundle(parser_context_t *ctx, | ||
| masp_sapling_bundle_t *bundle) { | ||
| if (ctx == NULL || bundle == NULL) { | ||
| return parser_unexpected_error; | ||
| } | ||
| uint8_t i = 0; | ||
|
|
||
| uint8_t has_shielded_spends = 0; | ||
| CHECK_ERROR(readByte(ctx, &has_shielded_spends)) | ||
| if (has_shielded_spends != 0) { | ||
| bundle->n_shileded_spends = has_shielded_spends; | ||
| bundle->shielded_spends.len = SHIELDED_SPENDS_LEN; | ||
| for (i = 0; i < bundle->n_shileded_spends; i++) { | ||
| CHECK_ERROR(readBytes(ctx, bundle->shielded_spends.ptr, | ||
| bundle->shielded_spends.len)) | ||
| } | ||
| } | ||
|
|
||
| uint8_t has_shielded_converts = 0; | ||
| CHECK_ERROR(readByte(ctx, &has_shielded_converts)) | ||
| if (has_shielded_converts != 0) { | ||
| bundle->n_shielded_converts = has_shielded_converts; | ||
| bundle->shielded_converts.len = SHIELDED_CONVERTS_LEN; | ||
| for (i = 0; i < bundle->n_shielded_converts; i++) { | ||
| CHECK_ERROR(readBytes(ctx, bundle->shielded_converts.ptr, | ||
| bundle->shielded_converts.len)) | ||
| } | ||
| } | ||
|
|
||
| uint8_t has_shielded_outputs = 0; | ||
| CHECK_ERROR(readByte(ctx, &has_shielded_outputs)) | ||
| if (has_shielded_outputs != 0) { | ||
| bundle->n_shielded_outputs = has_shielded_outputs; | ||
| bundle->shielded_outputs.len = SHIELDED_OUTPUTS_LEN; | ||
| for (i = 0; i < bundle->n_shielded_outputs; i++) { | ||
| CHECK_ERROR(readBytes(ctx, bundle->shielded_outputs.ptr, | ||
| bundle->shielded_outputs.len)) | ||
| } | ||
| } | ||
|
|
||
| if (has_shielded_converts != 0 && has_shielded_outputs != 0) { | ||
| uint8_t has_value = 0; | ||
| CHECK_ERROR(readByte(ctx, &has_value)) | ||
| if (!has_value) { | ||
| return parser_unexpected_value; | ||
| } | ||
| bundle->value_asset_id.len = ASSET_ID_LEN; | ||
| CHECK_ERROR( | ||
| readBytes(ctx, bundle->value_asset_id.ptr, bundle->value_asset_id.len)) | ||
|
|
||
| bundle->value_balance.len = INT_128_LEN; | ||
| CHECK_ERROR( | ||
| readBytes(ctx, &bundle->value_balance, bundle->value_balance.len)) | ||
| } | ||
|
|
||
| if (has_shielded_spends != 0) { | ||
| bundle->anchor_shielded_spends.len = ANCHOR_LEN; | ||
| CHECK_ERROR(readBytes(ctx, bundle->anchor_shielded_spends.ptr, | ||
| bundle->anchor_shielded_spends.len)) | ||
| } | ||
|
|
||
| if (has_shielded_converts != 0) { | ||
| bundle->anchor_shielded_converts.len = ANCHOR_LEN; | ||
| CHECK_ERROR(readBytes(ctx, bundle->anchor_shielded_converts.ptr, | ||
| bundle->anchor_shielded_converts.len)) | ||
| } | ||
|
|
||
| if (has_shielded_spends != 0) { | ||
| bundle->zkproof_shielded_spends.len = ZKPROFF_LEN; | ||
| CHECK_ERROR(readBytes(ctx, bundle->zkproof_shielded_spends.ptr, | ||
| bundle->zkproof_shielded_spends.len)) | ||
| bundle->auth_sig_shielded_spends.len = AUTH_SIG_LEN; | ||
| CHECK_ERROR(readBytes(ctx, bundle->auth_sig_shielded_spends.ptr, | ||
| bundle->auth_sig_shielded_spends.len)) | ||
| } | ||
|
|
||
| if (has_shielded_converts != 0) { | ||
| bundle->zkproof_shielded_converts.len = ZKPROFF_LEN; | ||
| CHECK_ERROR(readBytes(ctx, bundle->zkproof_shielded_converts.ptr, | ||
| bundle->zkproof_shielded_converts.len)) | ||
| } | ||
|
|
||
| if (has_shielded_outputs != 0) { | ||
| bundle->zkproof_shielded_spends.len = ZKPROFF_LEN; | ||
| CHECK_ERROR(readBytes(ctx, bundle->zkproof_shielded_spends.ptr, | ||
| bundle->zkproof_shielded_spends.len)) | ||
| } | ||
|
|
||
| if (has_shielded_converts != 0 && has_shielded_outputs != 0 && | ||
| has_shielded_spends != 0) { | ||
| bundle->authorization.len = AUTH_SIG_LEN; | ||
| CHECK_ERROR( | ||
| readBytes(ctx, bundle->authorization.ptr, bundle->authorization.len)) | ||
| } | ||
|
|
||
| return parser_ok; | ||
| } | ||
|
|
||
| static parser_error_t parse_transparent_bundle( | ||
| parser_context_t *ctx, masp_transparent_bundle_t *bundle) { | ||
| if (ctx == NULL || bundle == NULL) { | ||
| return parser_unexpected_error; | ||
| } | ||
|
|
||
| uint8_t has_vin = 0; | ||
| CHECK_ERROR(readByte(ctx, &has_vin)) | ||
|
|
||
| if (has_vin != 0) { | ||
| bundle->vin.asset_type_id.len = ASSET_ID_LEN; | ||
| CHECK_ERROR(readBytes(ctx, bundle->vin.asset_type_id.ptr, ASSET_ID_LEN)) | ||
|
|
||
| // Nonce is not encoded in the bundle, skipped in borsh encoding | ||
|
|
||
| CHECK_ERROR(readUint64(ctx, &bundle->vin.value)) | ||
|
|
||
| bundle->vin.transparent_address.len = TRANSPARENT_ADDRESS_LEN; | ||
| CHECK_ERROR(readBytes(ctx, bundle->vin.transparent_address.ptr, | ||
| TRANSPARENT_ADDRESS_LEN)) | ||
| } | ||
|
|
||
| uint8_t has_vout = 0; | ||
| CHECK_ERROR(readByte(ctx, &has_vout)) | ||
|
|
||
| if (has_vout != 0) { | ||
| bundle->vout.asset_type_id.len = ASSET_ID_LEN; | ||
| CHECK_ERROR(readBytes(ctx, bundle->vout.asset_type_id.ptr, ASSET_ID_LEN)) | ||
|
|
||
| // Nonce is not encoded in the bundle, skipped in borsh encoding | ||
|
|
||
| CHECK_ERROR(readUint64(ctx, &bundle->vout.value)) | ||
|
|
||
| bundle->vin.transparent_address.len = TRANSPARENT_ADDRESS_LEN; | ||
| CHECK_ERROR(readBytes(ctx, bundle->vout.transparent_address.ptr, | ||
| TRANSPARENT_ADDRESS_LEN)) | ||
| } | ||
|
|
||
| return parser_ok; | ||
| } | ||
|
|
||
| parser_error_t readMaspTx(parser_context_t *ctx, masp_tx_section_t *maspTx) { | ||
| if (ctx == NULL || maspTx == NULL) { | ||
| return parser_unexpected_error; | ||
| } | ||
|
|
||
| uint8_t sectionMaspTx = 0; | ||
| CHECK_ERROR(readByte(ctx, §ionMaspTx)) | ||
| if (sectionMaspTx != DISCRIMINANT_MASP_TX) { | ||
| return parser_unexpected_value; | ||
| } | ||
|
|
||
| // Read version for now only MaspV5 that translates to 0x02 | ||
| CHECK_ERROR(readUint32(ctx, &maspTx->data.tx_version)) | ||
| if (maspTx->data.tx_version != MASPV5_TX_VERSION) { | ||
| return parser_unexpected_value; | ||
| } | ||
| CHECK_ERROR(readUint32(ctx, &maspTx->data.version_group_id)) | ||
| if (maspTx->data.version_group_id != MASPV5_VERSION_GROUP_ID) { | ||
| return parser_unexpected_value; | ||
| } | ||
|
|
||
| // Read branch id, unique enum for now | ||
| CHECK_ERROR(readUint32(ctx, &maspTx->data.consensus_branch_id)) | ||
| if (maspTx->data.consensus_branch_id != BRANCH_ID_IDENTIFIER) { | ||
| return parser_unexpected_value; | ||
| } | ||
|
|
||
| // Read lock time | ||
| CHECK_ERROR(readUint32(ctx, &maspTx->data.lock_time)) | ||
|
|
||
| // Read expiry_height | ||
| CHECK_ERROR(readUint32(ctx, &maspTx->data.expiry_height)) | ||
|
|
||
| CHECK_ERROR(readUint16(ctx, &maspTx->data.has_transparent_bundle)) | ||
| if (maspTx->data.has_transparent_bundle != 0) { | ||
| ctx->offset -= 2; | ||
| parse_transparent_bundle(ctx, &maspTx->data.transparent_bundle); | ||
| } | ||
| uint8_t has_shielded_spends = 0; | ||
| uint8_t has_shielded_output = 0; | ||
| uint8_t has_shielded_converts = 0; | ||
| CHECK_ERROR(readByte(ctx, &has_shielded_spends)) | ||
| CHECK_ERROR(readByte(ctx, &has_shielded_converts)) | ||
| CHECK_ERROR(readByte(ctx, &has_shielded_output)) | ||
| if (has_shielded_spends != 0 && has_shielded_converts != 0 && | ||
| has_shielded_output != 0) { | ||
| ctx->offset -= 3; | ||
| parse_sapling_bundle(ctx, &maspTx->data.sapling_bundle); | ||
| } | ||
| return parser_ok; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| /******************************************************************************* | ||
| * (c) 2018 - 2022 Zondax AG | ||
| * | ||
| * 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. | ||
| ********************************************************************************/ | ||
| #pragma once | ||
| #include "parser_common.h" | ||
| #include <zxmacros.h> | ||
| #include "zxtypes.h" | ||
| #include "parser_txdef.h" | ||
|
|
||
| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif | ||
|
|
||
| #define MASPV5_TX_VERSION 0x02 | ||
| #define MASPV5_VERSION_GROUP_ID 0x26A7270A | ||
| #define BRANCH_ID_IDENTIFIER 0xE9FF75A6 | ||
|
|
||
| parser_error_t readMaspTx(parser_context_t *ctx, masp_tx_section_t *maspTx); | ||
|
|
||
| #ifdef __cplusplus | ||
| } | ||
| #endif |
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