实现单向holesky到amoy的跨链功能

操作流程：

1. 合约部署 已完成
2. 参数配置 已完成
3. 跨链调用 已完成

一、合约概要图

image.png

二、合约部署

Chain	EID	Owner
Holesky	40217 (9d19)	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048
Amoy	40267 (9d4b)	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

2.1【源链】-Holesky

Eid: 40217 9d19

Endpiont

owner:0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

构造参数

参数名称	参数值
_eid	40217
_owner	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

部署txhash

https://holesky.etherscan.io/tx/0x9c5ab7f3909d49b387d07e10b4c03dfd7edd797453b65eefc05d618781ac27dc

部署结果

endpoint: 0xf37817f975cf3865abd5f7a860ff4968e3ad23c9

newLib :0x8Ce308aB42361C63F114e59CaBbB9393D7DEa41B

SendLib302

owner:0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

构造参数

参数名称	参数值
_endpoint	0xf37817f975cf3865abd5f7a860ff4968e3ad23c9
_treasuryGasLimit	200000 30d40
_treasuryGasForFeeCap	1000000000000000000 1*10^18 de0b6b3a7640000

部署txhash

https://holesky.etherscan.io/tx/0x130f7f59ad1ae5975d596fe87933fc86769d5575b99eb5439a272a9f82fe4e90

部署结果

SendLib302：0xe83d86ed3352a4eb4a8098e3f189ebecfb5e0a22

DVN

owner： 0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

构造参数

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

参数名称	参数值
vid	10217 40217%30_000
_messageLibs	["0xe83d86ed3352a4eb4a8098e3f189ebecfb5e0a22"] SendLib302
_priceFeed	0x
_signers	["0x4e0539F3e0A941dCD0617F636381b4c3BC25F048"]
_quorum	1
_admins	["0x4e0539F3e0A941dCD0617F636381b4c3BC25F048"]

部署txhash

https://holesky.etherscan.io/tx/0xddb5b2916293506149cdcba03d8a5c81099474011964a8d9403ed7b471b8c465

部署结果

DVN:0xc58dc2e767918335e6879d5019fde8705899d6d8

Executor

owner： 0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

逻辑合约

构造参数

无

部署txhash

https://holesky.etherscan.io/tx/0x8672290925baa3a17ffc7ebe4832cec6041e3b76378e3289271faeaf5021f3f7

部署结果

executor: 0x4e590bb18e7799da84833d55a851a71b68bffd89

代理合约

1967

构造参数

initialize()

calldata: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

参数名称	参数值
_endpoint	0xf37817f975cf3865abd5f7a860ff4968e3ad23c9
_receiveUln301	0x0000000000000000000000000000000000000000
_messageLibs	["0xe83d86ed3352a4eb4a8098e3f189ebecfb5e0a22"] sendlib302
_priceFeed	0x0000000000000000000000000000000000000000
_roleAdmin	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048
_admins	["0x4e0539F3e0A941dCD0617F636381b4c3BC25F048"]

erc1967:

参数名称	参数值
_logic	0x4E590Bb18E7799DA84833D55a851A71B68bFFd89
_DATA	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

部署txhash

https://holesky.etherscan.io/tx/0x80cbcbb1aced6c2170ff886f259c063b4f3f86a41c0825d73cdf07a9fa59d281

部署结果

executor proxy: 0x8bfcc2dc3c4f9e48e4e1be2c6b3e4cba2a0a8dcb

ReceiveLib302

owner:0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

构造参数

参数名称	参数值
_endpoint	0xf37817f975cf3865abd5f7a860ff4968e3ad23c9

部署txhash

https://holesky.etherscan.io/tx/0x3c27e41b7ff9896578db4b19ffae2aad3aca0f97ba9253a49c63ed2db5855ccf

部署结果

ReceiveLib302：0xb70dd8b342ce6e4a3fd2d070c0b1098ae8f05a5e

2.【目标链】-Amoy

Eid: 40267 9d4b

Endpiont

owner:0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

构造参数

参数名称	参数值
_eid	40267
_owner	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

部署txhash

https://amoy.polygonscan.com/tx/0xc45654be673b48a52e625e2097b77134d788ddc3b7453639082650ba4c3b195e

部署结果

endpoint: 0xf37817f975cf3865abd5f7a860ff4968e3ad23c9

newLib :0x8Ce308aB42361C63F114e59CaBbB9393D7DEa41B

ReceiveLib302

owner:0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

构造参数

数名称	参数值
_endpoint	0xf37817f975cf3865abd5f7a860ff4968e3ad23c9

部署txhash

https://amoy.polygonscan.com/tx/0x8853e44b3dec57f89bc0fd09753a50ad327c51584e916a803e6423f3ac72528c

部署结果

ReceiveLib302：0xe83d86ed3352a4eb4a8098e3f189ebecfb5e0a22

SendLib302

owner:0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

构造参数

参数名称	数值
_endpoint	0xf37817f975cf3865abd5f7a860ff4968e3ad23c9
_treasuryGasLimit	200000 30d40
_treasuryGasForFeeCap	1000000000000000000 1*10^19 de0b6b3a7640000

部署txhash

https://amoy.polygonscan.com/tx/0xaacc57c3fa65fc8b5613ef6a31095273099a5fd6d293570fd46e1cee90360af1

部署结果

SendLib302：0xc58dc2e767918335e6879d5019fde8705899d6d8

DVN

owner： 0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

构造参数

参数名称	参数值
vid	10267 40267%30_000
_messageLibs	["0xc58dc2e767918335e6879d5019fde8705899d6d8"] SendLib302
_priceFeed	0x0000000000000000000000000000000000000000
_signers	["0x4e0539F3e0A941dCD0617F636381b4c3BC25F048"]
_quorum	1
_admins	["0x4e0539F3e0A941dCD0617F636381b4c3BC25F048"]

部署txhash

https://amoy.polygonscan.com/tx/0xb713ff4115917c3c84ff6a23f5f6f684994130201a14792df0a3270357fdc109

部署结果

DVN:0x4e590bb18e7799da84833d55a851a71b68bffd89

部署结果

【源链】-Holesky

Eid: 40217 9d19

合约名称	合约地址	Owner
endpoint	0xf37817f975cf3865abd5f7a860ff4968e3ad23c9 newLib :0x8Ce308aB42361C63F114e59CaBbB9393D7DEa41B	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048
SendLib302	0xe83d86ed3352a4eb4a8098e3f189ebecfb5e0a22	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048
DVN	0xc58dc2e767918335e6879d5019fde8705899d6d8	signer & admin &owner 0x4e0539F3e0A941dCD0617F636381b4c3BC25F048
executor	proxy: 0x8bfcc2dc3c4f9e48e4e1be2c6b3e4cba2a0a8dcblogic: 0x4e590bb18e7799da84833d55a851a71b68bffd89	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048
ReceiveLib302	0xb70dd8b342ce6e4a3fd2d070c0b1098ae8f05a5e	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

【目标链】-Amoy

Eid: 40267 9d4b

合约名称	合约地址	Owner
endpoint	0xf37817f975cf3865abd5f7a860ff4968e3ad23c9newLib :0x8Ce308aB42361C63F114e59CaBbB9393D7DEa41B	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048
ReceiveLib302	0xe83d86ed3352a4eb4a8098e3f189ebecfb5e0a22	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048
DVN	0x4e590bb18e7799da84833d55a851a71b68bffd89	signer & admin &owner 0x4e0539F3e0A941dCD0617F636381b4c3BC25F048
executor	proxy:logic:	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048
SendLib302	0xc58dc2e767918335e6879d5019fde8705899d6d8	0x4e0539F3e0A941dCD0617F636381b4c3BC25F048

三、参数配置

【源链】-Holesky

Eid: 40217 9d19

SendLib302

1. setDefaultUlnConfigs

"setDefaultUlnConfigs((uint32,(uint64,uint8,uint8,uint8,address[],address[]))[])": "29460b0b",

注意：Amoy eid(40267---9d4b)

Function: setDefaultUlnConfigs((uint32,tuple)[]) # Name Type Data 0 _params.eid uint32 40267 0 _params.config tuple 1,1,0,0,0xc58dc2e767918335e6879d5019fde8705899d6d8, // the formal properties are documented in the setter functions struct UlnConfig { uint64 /confirm/iations; // we store the length of required DVNs and optional DVNs instead of using DVN.length directly to save gas uint8 requiredDVNCount; // 0 indicate DEFAULT, NIL_DVN_COUNT indicate NONE (to override the value of default) uint8 optionalDVNCount; // 0 indicate DEFAULT, NIL_DVN_COUNT indicate NONE (to override the value of default) uint8 optionalDVNThreshold; // (0, optionalDVNCount] address[] requiredDVNs; // no duplicates. sorted an an ascending order. allowed overlap with optionalDVNs address[] optionalDVNs; // no duplicates. sorted an an ascending order. allowed overlap with requiredDVNs } struct SetDefaultUlnConfigParam { uint32 eid; UlnConfig config; }

参数如下：[[40267,[1,1,0,0,["0xc58dc2e767918335e6879d5019fde8705899d6d8"],[]]]]

txhash:https://holesky.etherscan.io/tx/0xbe01fb743fb260263c3d55089bd6a5e1e3fee29b05294ffe336fef3b80775ed3

2. setDefaultExecutorConfigs

setDefaultExecutorConfigs((uint32,(uint32,address))[])": "c14c4349"

Function: setDefaultExecutorConfigs((uint32,tuple)[]) # Name Type Data 0 _params.eid uint32 40267 0 _params.config tuple 10000,0x8bfcc2dc3c4f9e48e4e1be2c6b3e4cba2a0a8dcb struct SetDefaultExecutorConfigParam { uint32 eid; ExecutorConfig config; } struct ExecutorConfig { uint32 maxMessageSize; address executor; }

参数如下：[[40267,[10000,"0x8bfcc2dc3c4f9e48e4e1be2c6b3e4cba2a0a8dcb"]]]

txhash：https://holesky.etherscan.io/tx/0xa73f6dd6a05a89374a0bf34f9f930791f42fe5493417bdac6ab7ca3870bcd92f

Endpoint

1. registerLibrary

• sendLib302

https://holesky.etherscan.io/tx/0x1af6cc3430af120bd9c0ed12c6d542a65ba52da142af6e7c3e48cca10321118a

Function: registerLibrary(address ) *** MethodID: 0xe8964e81 [0]: 000000000000000000000000e83d86ed3352a4eb4a8098e3f189ebecfb5e0a22

• receiveLib302

https://holesky.etherscan.io/tx/0x966905a47d89ee83691d82ab86406c048e7521b8b2e6a00e4910316d5f02b71a

Function: registerLibrary(address ) *** MethodID: 0xe8964e81 [0]: 000000000000000000000000b70dd8b342ce6e4a3fd2d070c0b1098ae8f05a5e

2. setDefaultSendLibrary

合约上需要针对每一个eid设置一个lib。

注：_send方法内部会根据目标链id（_params.dstEid）获取sendlib。

https://holesky.etherscan.io/tx/0x6660383a9ed88b5e3837dac19fd260514d7c81cb0c09fa8836ceffbf8110f512

Function: setDefaultSendLibrary(uint32 ,address ) *** MethodID: 0xaafea312 [0]: 0000000000000000000000000000000000000000000000000000000000009d4b [1]: 000000000000000000000000e83d86ed3352a4eb4a8098e3f189ebecfb5e0a22 # Name Type Data 0 undefined uint32 40267 1 undefined address 0xe83d86Ed3352A4EB4a8098e3F189eBecFb5e0a22

注：第一次设置失败了，原因是内部会调用指定的SendLib302去验证已设置默认的uln。

https://holesky.etherscan.io/tx/0x6660383a9ed88b5e3837dac19fd260514d7c81cb0c09fa8836ceffbf8110f512

/// @dev owner setting the defaultSendLibrary /// @dev can set to the blockedLibrary, which is a registered library /// @dev the msgLib must enable the support before they can be registered to the endpoint as the default /// @dev only owner function setDefaultSendLibrary( uint32 _eid, address _newLib ) external onlyOwner onlyRegistered(_newLib) isSendLib(_newLib) onlySupportedEid(_newLib, _eid) { // must provide a different value if (defaultSendLibrary[_eid] == _newLib) revert Errors.LZ_Samevalue(); defaultSendLibrary[_eid] = _newLib; emit DefaultSendLibrarySet(_eid, _newLib); } /// @dev check if the library supported the eid. modifier onlySupportedEid(address _lib, uint32 _eid) { /// @dev doesnt need to check for default lib, because when they are initially added they get passed through this modifier if (_lib != DEFAULT_LIB) { if (!IMessageLib(_lib).isSupportedEid(_eid)) revert Errors.LZ_UnsupportedEid(); } _; } ---------------以下为sendlib302的代码---------------- /// @dev a supported Eid must have a valid default uln config, which has at least one dvn function _isSupportedEid(uint32 _remoteEid) internal view returns (bool) { UlnConfig storage defaultConfig = ulnConfigs[DEFAULT_CONFIG][_remoteEid]; return defaultConfig.requiredDVNCount > 0 || defaultConfig.optionalDVNThreshold > 0; }

【目标链】-Amoy

Eid: 40267 9d4b

ReceiveLib302

1. setDefaultUlnConfigs

"setDefaultUlnConfigs((uint32,(uint64,uint8,uint8,uint8,address[],address[]))[])": "29460b0b",

注意：Holesky eid(40217---9d19)

Function: setDefaultUlnConfigs((uint32,tuple)[]) # Name Type Data 0 _params.eid uint32 40217 0 _params.config tuple 1,1,0,0,0x4e590bb18e7799da84833d55a851a71b68bffd89, // the formal properties are documented in the setter functions struct UlnConfig { uint64 /confirm/iations; // we store the length of required DVNs and optional DVNs instead of using DVN.length directly to save gas uint8 requiredDVNCount; // 0 indicate DEFAULT, NIL_DVN_COUNT indicate NONE (to override the value of default) uint8 optionalDVNCount; // 0 indicate DEFAULT, NIL_DVN_COUNT indicate NONE (to override the value of default) uint8 optionalDVNThreshold; // (0, optionalDVNCount] address[] requiredDVNs; // no duplicates. sorted an an ascending order. allowed overlap with optionalDVNs address[] optionalDVNs; // no duplicates. sorted an an ascending order. allowed overlap with requiredDVNs } struct SetDefaultUlnConfigParam { uint32 eid; UlnConfig config; }

参数如下：[[40217,[1,1,0,0,["0x4e590bb18e7799da84833d55a851a71b68bffd89"],[]]]]

Txhash:https://amoy.polygonscan.com/tx/0x5d3ba9ca1c2d89ca503d0a15eebff3a6c18d2fe0a10eab63e6e78def0a1362be

Endpoint

1. registerLibrary

• receiveLib302

https://amoy.polygonscan.com/tx/0x690a33fbb8097c575545c85c09f2f76e7850af76cd2965002f4dabe088e18a56

Function: registerLibrary(address _lib) *** MethodID: 0xe8964e81 [0]: 000000000000000000000000e83d86ed3352a4eb4a8098e3f189ebecfb5e0a22

• sendLib302

https://amoy.polygonscan.com/tx/0x02cd2163d91cc613f3c4c44c7989cc6140b7b4fe438229ee530d029d397ad71d

Function: registerLibrary(address _lib) *** MethodID: 0xe8964e81 [0]: 000000000000000000000000c58dc2e767918335e6879d5019fde8705899d6d8

2. setDefaultReceiveLibrary

Commitverification 会用到 endpiont的verfiy方法，里面会验证isValidReceiveLibrary(_receiver, _origin.srcEid, msg.sender)

https://amoy.polygonscan.com/tx/0xed94d229024e803d5298e4c7184db8356da50b3c80c08c0fd923dfe315491f9a

Function: setDefaultReceiveLibrary(uint32 _eid,address _newLib,uint256 _gracePeriod) *** MethodID: 0xa718531b [0]: 0000000000000000000000000000000000000000000000000000000000009d19 [1]: 000000000000000000000000e83d86ed3352a4eb4a8098e3f189ebecfb5e0a22 [2]: 0000000000000000000000000000000000000000000000000000000000000000

四、跨链调用（Holesky 到 Amoy）

注：前面的部署配置是单向的，所以测试也是单向的，后续补充双向。

本次测试Holesky 到 Amoy

应用合约部署

合约代码如下：

// SPDX-License-Identifier: MIT pragma solidity ^0.8.22; import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol"; import { OApp, MessagingFee, Origin } from "@layerzerolabs/lz-evm-oapp-v2/contracts/oapp/OApp.sol"; import { MessagingReceipt } from "@layerzerolabs/lz-evm-oapp-v2/contracts/oapp/OAppSender.sol"; contract MyOApp is OApp { constructor(address _endpoint, address _delegate) OApp(_endpoint, _delegate) Ownable(_delegate) {} string public data = "Nothing received yet."; function send( uint32 _dstEid, string memory _message, bytes calldata _options ) external payable returns (MessagingReceipt memory receipt) { bytes memory _payload = abi.encode(_message); receipt = _lzSend(_dstEid, _payload, _options, MessagingFee(msg.value, 0), payable(msg.sender)); } function quote( uint32 _dstEid, string memory _message, bytes memory _options, bool _payInLzToken ) public view returns (MessagingFee memory fee) { bytes memory payload = abi.encode(_message); fee = _quote(_dstEid, payload, _options, _payInLzToken); } function _lzReceive( Origin calldata , bytes32 , bytes calldata payload, address , bytes calldata ) internal override { data = abi.decode(payload, (string)); } }

【源链】Holesky

https://holesky.etherscan.io/tx/0xa61a3cf8aca80af6870b1852ee5e6d7aa022ba979daa666d8b9eb2d561bbe245

_ENDPOINT:0xf37817f975cf3865abd5f7a860ff4968e3ad23c9 _DELEGATE:0xAa1a88aa89F50ee9B7e3F6124f18a31d5E6dB1F9

合约地址：0xedeabd37bbbf901750dd31b84d67d571fc303d36

【目标链】Amoy

https://amoy.polygonscan.com/tx/0x54af7a08601c3dd198a5a02ddbf230458079b42f85b26bee1761085afca19354

_ENDPOINT:0xf37817f975cf3865abd5f7a860ff4968e3ad23c9 _DELEGATE:0xAa1a88aa89F50ee9B7e3F6124f18a31d5E6dB1F9

合约地址：0xee037dc8dbec28a70db6bafc9ea33824d61836b1

应用参数配置

【源链】Holesky

setPeers

设置参数如下：

目标链Id：40267 目标应用合约地址：0xee037dc8dbec28a70db6bafc9ea33824d61836b1

_DELEGATE：0xAa1a88aa89F50ee9B7e3F6124f18a31d5E6dB1F9

注意：_DELEGATE才可以调用

myOApp	eid （目标链）	peer(目标应用合约地址)	Tx hash
0xedeabd37bbbf901750dd31b84d67d571fc303d36	40267	0x000000000000000000000000ee037dc8dbec28a70db6bafc9ea33824d61836b1	https://holesky.etherscan.io/tx/0x149100eac1e92195b58ef5e8c3071303defc6e044290ac2c6e937666dd590b33

Function: setPeer(uint32 eid,bytes32 peer) *** MethodID: 0x3400288b [0]: 0000000000000000000000000000000000000000000000000000000000009d4b [1]: 000000000000000000000000ee037dc8dbec28a70db6bafc9ea33824d61836b1 # Name Type Data 0 eid uint32 40267 1 peer bytes32 0x000000000000000000000000ee037dc8dbec28a70db6bafc9ea33824d61836b1

【目标链】Amoy

setPeers

设置参数如下：

源链Id：40217 源链应用合约地址：0xedeabd37bbbf901750dd31b84d67d571fc303d36

_DELEGATE：0xAa1a88aa89F50ee9B7e3F6124f18a31d5E6dB1F9

注意：_DELEGATE才可以调用

myOApp	eid****（源链的）	peer(源链的应用合约地址)	Tx hash
0xee037dc8dbec28a70db6bafc9ea33824d61836b1	40217	0x000000000000000000000000EDEABD37BBBF901750DD31B84D67D571FC303D36	https://amoy.polygonscan.com/tx/0x643649fa4570bdac892f6bbb2639c98b1ae0cb05975be11fb1ec4ddcc48892a8

应用跨链测试

【源链】发起-myOApp

Generating Options:https://docs.layerzero.network/v2/developers/evm/gas-settings/options#generating-options

方法参数

function send(uint32 _dstEid, string memory _message, bytes calldata _options )

注意：v2里_options参数必须填写，否则无法发起交易。

Contract Address	_dstEid	_message	_options
0xedeabd37bbbf901750dd31b84d67d571fc303d36	40267	zxl20240722	0x0003010011010000000000000000000000000000ea60 _gas: 60000 _value:0

交易结果

源链Hash：

https://holesky.etherscan.io/tx/0x18aff9cd6ccaf7a5ef3299237c6689697a560960610f410a559978050dbdfe4e

PacketSent 事件内容：

PacketSent (bytes encodedPayload, bytes options, address sendLibrary) encodedPayload :01000000000000000100009D19000000000000000000000000EDEABD37BBBF901750DD31B84D67D571FC303D3600009D4B000000000000000000000000EE037DC8DBEC28A70DB6BAFC9EA33824D61836B1C5D70FA727CDF89680318706077752F4E380A735D99492746965B5256F5403D70000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000B7A786C3230323430373232000000000000000000000000000000000000000000 options :0003010011010000000000000000000000000000EA60 sendLibrary :0xe83d86Ed3352A4EB4a8098e3F189eBecFb5e0a22

encodedPayload 解析如下：

encodedPacket = abi.encodePacked(packetHeader, payload);

packetHeader：01000000000000000100009D19000000000000000000000000EDEABD37BBBF901750DD31B84D67D571FC303D3600009D4B000000000000000000000000EE037DC8DBEC28A70DB6BAFC9EA33824D61836B1

payload：

C5D70FA727CDF89680318706077752F4E380A735D99492746965B5256F5403D70000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000B7A786C3230323430373232000000000000000000000000000000000000000000

分类	参数值	参数名
packetHeader	01	PACKET_VERSION 1
0000000000000001	nonce 1
00009D19	srcEid 40217
000000000000000000000000EDEABD37BBBF901750DD31B84D67D571FC303D36	sender
00009D4B	dstEid 40267
000000000000000000000000EE037DC8DBEC28A70DB6BAFC9EA33824D61836B1	receiver
payload	C5D70FA727CDF89680318706077752F4E380A735D99492746965B5256F5403D7	guid
0000000000000000000000000000000000000000000000000000000000000020 000000000000000000000000000000000000000000000000000000000000000B 7A786C3230323430373232000000000000000000000000000000000000000000	message

【目标链】提交签名-DVN -> Receive302

DVN的admin调用DVN合约的execute方法进行signer的签名的验证以及将交易的确认提交至receivelib302.

DVN合约地址：0x4e590bb18e7799da84833d55a851a71b68bffd89

DVN合约中方法execute的参数如下：

Name	Type	Data	备注
params.vid	uint32	10267	部署dvn时设置的
_params.target	address	0xe83d86ed3352a4eb4a8098e3f189ebecfb5e0a22	receiveLib302合约地址
_params.callData	bytes	0x0223536e0000000000000000000000000000000000000000000000000000000000000060a292800fdc6a51b7fc3b31905f7813d865aae060014a6821ce5166bcfd9682880000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000005101000000000000000100009d19000000000000000000000000edeabd37bbbf901750dd31b84d67d571fc303d3600009d4b000000000000000000000000ee037dc8dbec28a70db6bafc9ea33824d61836b1000000000000000000000000000000	receiveLib302的方法verify签名数据
_params.expiration	uint256	1721791521	1天有效期 2024-07-24 11:25:21
_params.signatures	bytes	0x3e40e1728a32748ae1bd2ba5adf64445e426cefba22ec9c0c0d4bf17a1d5b1e96171cb4d0ff731c82f36b21f9352a4fab0db12681d7bb5ae830efd48a3fa94a71b	对dvn合约中execute方法的关键参加的消息摘要的签名。_messageHash = keccak256(abi.encodePacked(vid, target, expiration, callData));_messageDigest= keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", _messageHash));

方法参数

function execute(ExecuteParam[] calldata _params) external onlyRole(ADMIN_ROLE)

[[10267,"0xe83d86ed3352a4eb4a8098e3f189ebecfb5e0a22","0x0223536e0000000000000000000000000000000000000000000000000000000000000060a292800fdc6a51b7fc3b31905f7813d865aae060014a6821ce5166bcfd9682880000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000005101000000000000000100009d19000000000000000000000000edeabd37bbbf901750dd31b84d67d571fc303d3600009d4b000000000000000000000000ee037dc8dbec28a70db6bafc9ea33824d61836b1000000000000000000000000000000",1721791521,"0x3e40e1728a32748ae1bd2ba5adf64445e426cefba22ec9c0c0d4bf17a1d5b1e96171cb4d0ff731c82f36b21f9352a4fab0db12681d7bb5ae830efd48a3fa94a71b"]]

交易结果

Txhash:

https://amoy.polygonscan.com/tx/0xa2c21e65b628df518425ca204b98472c36d1404c27dbb1b90490904a8aead5cc

Transaction Receipt Event Logs ：

Address 0xe83d86ed3352a4eb4a8098e3f189ebecfb5e0a22 Name PayloadVerified (address dvn, bytes header, uint256 /confirm/iations, bytes32 proofHash) Topics 0 0x2cb0eed7538baeae4c6fde038c0fd0384d27de0dd55a228c65847bda6aa1ab56 Data dvn :0x4E590Bb18E7799DA84833D55a851A71B68bFFd89 header :01000000000000000100009D19000000000000000000000000EDEABD37BBBF901750DD31B84D67D571FC303D3600009D4B000000000000000000000000EE037DC8DBEC28A70DB6BAFC9EA33824D61836B1 confirmations :1 proofHash :A292800FDC6A51B7FC3B31905F7813D865AAE060014A6821CE5166BCFD968288

【目标链】执行跨链-ReceiveLib302&Endpoint

Executor :

[1,1,0,0,["0x4E590Bb18E7799DA84833D55a851A71B68bFFd89"],[]]

【ReceiveLib302】commitVerification

receivelib302合约地址： 0xe83d86ed3352a4eb4a8098e3f189ebecfb5e0a22

方法参数

function commitVerification(bytes calldata _packetHeader, bytes32 _payloadHash) external _packetHeader: 0x01000000000000000100009D19000000000000000000000000EDEABD37BBBF901750DD31B84D67D571FC303D3600009D4B000000000000000000000000EE037DC8DBEC28A70DB6BAFC9EA33824D61836B1 _payloadHash：0xa292800fdc6a51b7fc3b31905f7813d865aae060014a6821ce5166bcfd968288

_packetHeaderHash: 0xf3fec8a71c20e085141ee36d7af1481931cfb88472aec85d64eb43fcf1f6a415

交易结果

txhash:https://amoy.polygonscan.com/tx/0xd491bbfc3e3e1cb469cb3841851d3abd20ee4c4124e70dd3136f6403123d8810

Address 0xf37817f975cf3865abd5f7a860ff4968e3ad23c9 Name PacketVerified (tuple origin, address receiver, bytes32 payloadHash)View Source Topics 0 0x0d87345f3d1c929caba93e1c3821b54ff3512e12b66aa3cfe54b6bcbc17e59b4 Data 0x0000000000000000000000000000000000000000000000000000000000009d19000000000000000000000000edeabd37bbbf901750dd31b84d67d571fc303d360000000000000000000000000000000000000000000000000000000000000001000000000000000000000000ee037dc8dbec28a70db6bafc9ea33824d61836b1a292800fdc6a51b7fc3b31905f7813d865aae060014a6821ce5166bcfd968288

【Endpoint】lzReceive

endpoint合约地址：0xf37817f975cf3865abd5f7a860ff4968e3ad23c9

方法参数

function lzReceive(Origin calldata _origin,address _receiver,bytes32 _guid,bytes calldata _message,bytes calldata _extraData ) struct Origin { uint32 srcEid; bytes32 sender; uint64 nonce; } ----参数如下 _origin:[40217,"0x000000000000000000000000EDEABD37BBBF901750DD31B84D67D571FC303D36",1] _receiver: 0xEE037DC8DBEC28A70DB6BAFC9EA33824D61836B1 _guid: 0xC5D70FA727CDF89680318706077752F4E380A735D99492746965B5256F5403D7 _message:0x0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000B7A786C3230323430373232000000000000000000000000000000000000000000 _extradata:0x

交易结果

Txhash:

https://amoy.polygonscan.com/tx/0xde9ee7d617ebd75a0a29c90da189b9fd108ab9ee8619615ba8c36bdd46c3a613

Address 0xf37817f975cf3865abd5f7a860ff4968e3ad23c9 Name PacketDelivered (tuple origin, address receiver)View Source Topics 0 0x3cd5e48f9730b129dc7550f0fcea9c767b7be37837cd10e55eb35f734f4bca04 Data 0x0000000000000000000000000000000000000000000000000000000000009d19000000000000000000000000edeabd37bbbf901750dd31b84d67d571fc303d360000000000000000000000000000000000000000000000000000000000000001000000000000000000000000ee037dc8dbec28a70db6bafc9ea33824d61836b1

【目标链】查询结果-myOApp

image.png

顺利结束！！！

帮助类库

1. 计算message哈希以及摘要

// SPDX-License-Identifier: GPL-3.0 pragma solidity >=0.8.2 <0.9.0; contract MyLayerzeroHelper { // 计算hash以及验证摘要 function calcHash( uint32 vid, address target, bytes memory callData, uint256 expiration) public pure returns (bytes32,bytes32){ bytes32 hash = keccak256(abi.encodePacked(vid, target, expiration, callData)); bytes32 messageDigest = _getEthSignedMessageHash(hash); return (hash, messageDigest); } function _getEthSignedMessageHash(bytes32 _messageHash) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", _messageHash)); } function getMessage(string memory _message) public pure returns (bytes memory){ bytes memory _payload = abi.encode(_message); return _payload; } function getPayloadHash(bytes32 _guid,bytes calldata _message) public pure returns(bytes32){ return keccak256( abi.encodePacked(_guid,_message)); } function calcPacketHeaderHash(bytes calldata _packetHeader) public pure returns(bytes32){ return keccak256(_packetHeader); } function generateGUID( uint64 _nonce, uint32 _srcEid, address _sender, uint32 _dstEid, bytes32 _receiver ) public pure returns (bytes32) { return keccak256(abi.encodePacked(_nonce, _srcEid, toBytes32(_sender), _dstEid, _receiver)); } function toBytes32(address _address) internal pure returns (bytes32 result) { result = bytes32(uint256(uint160(_address))); } struct ExecuteParam { uint32 vid; address target; bytes callData; uint256 expiration; bytes signatures; } }

摘要的签名

async function dvnSign(){ var digest= "0x5200d16eaf756f7cff0647dde5a967a7193bdb9a4ef035c046140ac6bc31e0fc" const signer = new ethers.utils.SigningKey(privateKey); var signature = signer.signDigest(digest); console.log("signature: ", signature); console.log("signature hex string: ", signature.r + signature.s.substring(2) + signature.v.toString(16)); }

主要问题

1. 合约部署问题

当前使用的是main分支的代码, remix编译时注意版本号（@openzeppelin/contracts@4.9.5/utils/cryptography/ECDSA.sol"）。 注：tag1.0有问题，后续看看。

2. 合约参数设置问题

合约之间有依赖关系，所以初始化时一定注意顺序。

3. dvn合约里的签名 注意解析规则，另外，可以不部署dvn合约，直接调用receivelib302进行跨链交易的验证。

4. 无法执行commitVerification方法

目标链需要执行setpeers方法。 业务内部会调用

## EndpointV2.sol function _initializable( Origin calldata _origin, address _receiver, uint64 _lazyInboundNonce ) internal view returns (bool) { return _lazyInboundNonce > 0 || // allowInitializePath already checked ILayerZeroReceiver(_receiver).allowInitializePath(_origin); } ## OAppReceiver.sol function allowInitializePath(Origin calldata origin) public view virtual returns (bool) { return peers[origin.srcEid] == origin.sender; }