- Spec: XLS-66
Fix overpayment asserts (#6084)
MPTTester::operator() parameter should be std::int64_t
- Originally defined as uint64_t, but the testIssuerLoan() test called
it with a negative number, causing an overflow to a very large number
that in some circumstances could be silently cast back to an int64_t,
but might not be. I believe this is UB, and we don't want to rely on
that.
Review feedback from @Tapanito: overpayment value change
- In overpayment results, the management fee was being calculated twice:
once as part of the value change, and as part of the fees paid.
Exclude it from the value change.
Fix Overpayment Calculation (#6087)
- Adds additional unit tests to cover math calculations.
- Removes unused methods.
Review feedback from @shawnxie999: even more rounding
- Round the initial total value computation upward, unless there is
0-interest.
- Rename getVaultScale to getAssetsTotalScale, and convert one incorrect
computation to use it.
- Use adjustImpreciseNumber for LossUnrealized.
- Add some logging to computeLoanProperties.
Fix LoanBrokerSet debtMaximum limits (#6116)
Fix some minor bugs in Lending Protocol (#6101)
- add nodiscard to unimpairLoan, and check result in LoanPay
- add a check to verify that issuer exists
- improve LoanManage error code for dust amounts
Check permissions in LoanSet and LoanPay (#6108)
Disallow pseudo accounts to be Destination for LoanBrokerCoverWithdraw (#6106)
Ensure vault asset cap is not exceeded (#6124)
Fix Overpayment ValueChange calculation in Lending Protocol (#6114)
- Adds loan state to LoanProperties.
- Cleans up computeLoanProperties.
- Fixes missing management fee from overpayment.
fix: Enable LP Deposits when the broker is the asset issuer (#6119)
* Replace accountHolds with accountSpendable when checking
for account funds in VaultDeposit and LoanBrokerCoverDeposit
Add a few minor changes (#6158)
- Updates or fixes a couple of things I noticed while reviewing changes
to the spec.
- Rename sfPreviousPaymentDate to sfPreviousPaymentDueDate.
- Make the vault asset cap check added in #6124 a little more robust:
1. Check in preflight if the vault is _already_ over the limit.
2. Prevent overflow when checking with the loan value. (Subtract
instead of adding, in case the values are near maxint. Both return
the same result. Also add a unit test so each case is covered.
Add minimum grace period validation (#6133)
Fix bugs: frozen pseudo-account, and FLC cutoff (#6170)
refactor: Rename raw state to theoretical state (#6187)
Check if a withdrawal amount exceeds any applicable receiving limit. (#6117)
Fix overpayment result calculation (#6195)
Address review feedback from Lending Protocol re-review (#6161)
---------
Co-authored-by: Gregory Tsipenyuk <gregtatcam@users.noreply.github.com>
Co-authored-by: Bronek Kozicki <brok@incorrekt.com>
Co-authored-by: Vito Tumas <5780819+Tapanito@users.noreply.github.com>
Co-authored-by: Shawn Xie <35279399+shawnxie999@users.noreply.github.com>
Co-authored-by: Jingchen <a1q123456@users.noreply.github.com>
- Spec: XLS-66
- Introduces amendment "LendingProtocol", but leaves it UNSUPPORTED to
allow for standalone testing, future development work, and potential
bug fixes.
- AccountInfo RPC will indicate the type of pseudo-account when
appropriate.
- Refactors and improves several existing classes and functional areas,
including Number, STAmount, STObject, json_value, Asset, directory
handling, View helper functions, and unit test helpers.
Per XLS-0095, we are taking steps to rename ripple(d) to xrpl(d).
This change specifically removes all copyright notices referencing Ripple, XRPLF, and certain affiliated contributors upon mutual agreement, so the notice in the LICENSE.md file applies throughout. Copyright notices referencing external contributions remain as-is. Duplicate verbiage is also removed.
Field `sfSubjectNode` is not populated by `CredentialCreate` in self-issued credentials. Rather than fixup the Credentials already on the ledger, we can in this case safely change the object template for this field from `soeREQUIRED` to `soeOPTIONAL`.
This change adds a fix amendment (`fixIncludeKeyletFields`) that adds:
* `sfSequence` to `Escrow` and `PayChannel`
* `sfOwner` to `SignerList`
* `sfOracleDocumentID` to `Oracle`
This ensures that all ledger entries hold all the information needed to determine their keylet.
* extends the functionality of the MPTokenIssuanceSet transaction, allowing the issuer to update fields or flags that were explicitly marked as mutable during creation.
* Add and Scale to VaultCreate
* Add round-trip calculation to VaultDeposit VaultWithdraw and VaultClawback
* Implement Number::truncate() for VaultClawback
* Add rounding to DepositWithdraw
* Disallow zero shares withdraw or deposit with tecPRECISION_LOSS
* Return tecPATH_DRY on overflow when converting shares/assets
* Remove empty shares MPToken in clawback or withdraw (except for vault owner)
* Implicitly create shares MPToken for vault owner in VaultCreate
* Review feedback: defensive checks in shares/assets calculations
---------
Co-authored-by: Ed Hennis <ed@ripple.com>
This change adds support for `DomainID` to existing transactions `MPTokenIssuanceCreate` and `MPTokenIssuanceSet`.
In #5224 `DomainID` was added as an access control mechanism for `SingleAssetVault`. The actual implementation of this feature lies in `MPToken` and `MPTokenIssuance`, hence it makes sense to enable the use of `DomainID` also in `MPTokenIssuanceCreate` and `MPTokenIssuanceSet`, following same rules as in Vault:
* `MPTokenIssuanceCreate` and `MPTokenIssuanceSet` can only set `DomainID` if flag `MPTRequireAuth` is set.
* `MPTokenIssuanceCreate` requires that `DomainID` be a non-zero, uint256 number.
* `MPTokenIssuanceSet` allows `DomainID` to be zero (or empty) in which case it will remove `DomainID` from the `MPTokenIssuance` object.
The change is amendment-gated by `SingleAssetVault`. This is a non-breaking change because `SingleAssetVault` amendment is `Supported::no`, i.e. at this moment considered a work in progress, which cannot be enabled on the network.
- Specification: https://github.com/XRPLF/XRPL-Standards/pull/272
- Amendment: `TokenEscrow`
- Enables escrowing of IOU and MPT tokens in addition to native XRP.
- Allows accounts to lock issued tokens (IOU/MPT) in escrow objects, with support for freeze, authorization, and transfer rates.
- Adds new ledger fields (`sfLockedAmount`, `sfIssuerNode`, etc.) to track locked balances for IOU and MPT escrows.
- Updates EscrowCreate, EscrowFinish, and EscrowCancel transaction logic to support IOU and MPT assets, including proper handling of trustlines and MPT authorization, transfer rates, and locked balances.
- Enforces invariant checks for escrowed IOU/MPT amounts.
- Extends GatewayBalances RPC to report locked (escrowed) balances.
- Specification: XRPLF/XRPL-Standards#239
- Amendment: `SingleAssetVault`
- Implements a vault feature used to store a fungible asset (XRP, IOU, or MPT, but not NFT) and to receive shares in the vault (an MPT) in exchange.
- A vault can be private or public.
- A private vault can use permissioned domains, subject to the `PermissionedDomains` amendment.
- Shares can be exchanged back into asset with `VaultWithdraw`.
- Permissions on the asset in the vault are transitively applied on shares in the vault.
- Issuer of the asset in the vault can clawback with `VaultClawback`.
- Extended `MPTokenIssuance` with `DomainID`, used by the permissioned domain on the vault shares.
Co-authored-by: John Freeman <jfreeman08@gmail.com>
This change implements the account permission delegation described in XLS-75d, see https://github.com/XRPLF/XRPL-Standards/pull/257.
* Introduces transaction-level and granular permissions that can be delegated to other accounts.
* Adds `DelegateSet` transaction to grant specified permissions to another account.
* Adds `ltDelegate` ledger object to maintain the permission list for delegating/delegated account pair.
* Adds an optional `Delegate` field in common fields, allowing a delegated account to send transactions on behalf of the delegating account within the granted permission scope. The `Account` field remains the delegating account; the `Delegate` field specifies the delegated account. The transaction is signed by the delegated account.
The LEDGER_ENTRY macro now takes an additional parameter, which makes it easier to avoid missing including the new field in jss.h and to the list of account_objects/ledger_data filters.
