Ledger freezes with some multi-action transactions

[aaroncox]

Note: all of this data is available on the Jungle Testnet, and is accessible via jungle.greymass.com

When using specific combinations of actions within a single transaction, the Ledger app will prompt the transactions, but when on the device you click "Continue Review", the Ledger app itself freezes and cannot proceed.

To provide an example - given the following ABI (available on the greymassfuel account):

{
    "version": "eosio::abi/1.0",
    "types": [],
    "structs": [
        {
            "name": "cosign",
            "base": "",
            "fields": [
                {
                    "name": "referrer",
                    "type": "string"
                }
            ]
        }
    ],
    "actions": [
        {
            "name": "cosign",
            "type": "cosign",
            "ricardian_contract": ""
        }
    ],
    "tables": [],
    "ricardian_clauses": [],
    "error_messages": [],
    "abi_extensions": [],
    "variants": []
}

With a transaction containing the following actions:

{
  actions: [
    {
      account: 'greymassfuel',
      name: 'cosign',
      authorization: [{
        actor: 'greymassfuel',
        permission: 'cosign',
      }],
      data: {
        referrer: 'foo'
      }
    },
    {
      account: 'eosio',
      name: 'voteproducer',
      authorization: [{
        actor: 'greymasstest',
        permission: 'voting',
      }],
      data: {
        producers: [],
        proxy: 'greymassvote',
        voter: 'greymasstest'
      }
    }
  ]
}

The app on the device will freeze and prevent signing of the transaction.

It seems this is isolated to only specific action types, since the delphioracle contract works with some actions in the same circumstances and not others.

For example, this transaction actually works and is able to be signed by the Ledger without freezing:

{
  actions: [
    {
      account: 'delphioracle',
      name: 'write',
      authorization: [{
        actor: 'greymassfuel',
        permission: 'cosign',
      }],
      data: {
        owner: 'greymassfuel',
        quotes: [{
          pair: 'eosusd',
          value: 23148
        }]
      }
    },
    {
      account: 'eosio',
      name: 'voteproducer',
      authorization: [{
        actor: 'greymasstest',
        permission: 'voting',
      }],
      data: {
        producers: [],
        proxy: 'greymassvote',
        voter: 'greymasstest'
      }
    }
  ]
}

The delphioracle:write action seems to process properly and allow signature generation, which I believe is because it contains an array of structs (the quotes value). The reason I believe this is because when trying to use the delphioracle:claim action, as shown below, the device will again freeze when selecting "Continue Review" on the device.

{
  actions: [
    {
      account: 'delphioracle',
      name: 'claim',
      authorization: [{
        actor: 'greymassfuel',
        permission: 'cosign',
      }],
      data: {
        owner: 'greymassfuel',
      }
    },
    {
      account: 'eosio',
      name: 'voteproducer',
      authorization: [{
        actor: 'greymasstest',
        permission: 'voting',
      }],
      data: {
        producers: [],
        proxy: 'greymassvote',
        voter: 'greymasstest'
      }
    }
  ]
}

Somewhere in the logic after clicking "Continue review" the application is crashing, preventing signatures from being created for the most basic of actions in a multi-action transaction.

[laurensV]

Any plans on fixing this issue with the eos-ledger app for multi-action transactions? We are facing the same problems with our multi-action transactions for quite sone time now..

[kmu36323]

hi did you manage to solve the problem or did everything just stay in the ass?
Fuel disabled while using a Ledger
The combination of Fuel and Ledger devices is currently not working. An issue on the Ledger app itself prevents this feature from working. Technical information is available here.

[tarassh]

@kmu36323 the changes are committed. The ball is on Ledger side right now. W8 for 1.4 release. As an alternative you can use Anchor wallet. It has workaround.