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feat(RewardsStreamerMP): introduce emergency mode and ability to leave
This adds a new emergency mode that can be enabled by the owner of the system. When in emergency mode, stakers or `StakeVault`s can leave the system immediately. Closes #66
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| { | ||
| "files": [ | ||
| "src/RewardsStreamerMP.sol", | ||
| "certora/helpers/ERC20A.sol" | ||
| ], | ||
| "link" : [ | ||
| "RewardsStreamerMP:STAKING_TOKEN=ERC20A", | ||
| "RewardsStreamerMP:REWARD_TOKEN=ERC20A" | ||
| ], | ||
| "msg": "Verifying RewardsStreamerMP.sol", | ||
| "rule_sanity": "basic", | ||
| "verify": "RewardsStreamerMP:certora/specs/EmergencyMode.spec", | ||
| "parametric_contracts": ["RewardsStreamerMP"], | ||
| "optimistic_loop": true, | ||
| "loop_iter": "3", | ||
| "packages": [ | ||
| "forge-std=lib/forge-std/src", | ||
| "@openzeppelin=lib/openzeppelin-contracts" | ||
| ] | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| using RewardsStreamerMP as streamer; | ||
| using ERC20A as staked; | ||
|
|
||
| methods { | ||
| function emergencyModeEnabled() external returns (bool) envfree; | ||
| } | ||
|
|
||
| definition isViewFunction(method f) returns bool = ( | ||
| f.selector == sig:streamer.STAKING_TOKEN().selector || | ||
| f.selector == sig:streamer.REWARD_TOKEN().selector || | ||
| f.selector == sig:streamer.SCALE_FACTOR().selector || | ||
| f.selector == sig:streamer.MP_RATE_PER_YEAR().selector || | ||
| f.selector == sig:streamer.MIN_LOCKUP_PERIOD().selector || | ||
| f.selector == sig:streamer.MAX_LOCKUP_PERIOD().selector || | ||
| f.selector == sig:streamer.MAX_MULTIPLIER().selector || | ||
| f.selector == sig:streamer.accountedRewards().selector || | ||
| f.selector == sig:streamer.rewardIndex().selector || | ||
| f.selector == sig:streamer.lastMPUpdatedTime().selector || | ||
| f.selector == sig:streamer.owner().selector || | ||
| f.selector == sig:streamer.totalStaked().selector || | ||
| f.selector == sig:streamer.totalMaxMP().selector || | ||
| f.selector == sig:streamer.totalMP().selector || | ||
| f.selector == sig:streamer.accounts(address).selector || | ||
| f.selector == sig:streamer.emergencyModeEnabled().selector || | ||
| f.selector == sig:streamer.getStakedBalance(address).selector || | ||
| f.selector == sig:streamer.getAccount(address).selector || | ||
| f.selector == sig:streamer.getPendingRewards(address).selector || | ||
| f.selector == sig:streamer.calculateAccountRewards(address).selector | ||
| ); | ||
|
|
||
| definition isOwnableFunction(method f) returns bool = ( | ||
| f.selector == sig:streamer.renounceOwnership().selector || | ||
| f.selector == sig:streamer.transferOwnership(address).selector | ||
| ); | ||
|
|
||
| definition isTrustedCodehashAccessFunction(method f) returns bool = ( | ||
| f.selector == sig:streamer.setTrustedCodehash(bytes32, bool).selector || | ||
| f.selector == sig:streamer.isTrustedCodehash(bytes32).selector | ||
| ); | ||
|
|
||
| rule accountCanOnlyLeaveInEmergencyMode(method f) { | ||
| env e; | ||
| calldataarg args; | ||
|
|
||
| require emergencyModeEnabled() == true; | ||
|
|
||
| f@withrevert(e, args); | ||
| bool isReverted = lastReverted; | ||
|
|
||
| assert !isReverted => f.selector == sig:streamer.leave().selector || | ||
| isViewFunction(f)|| | ||
| isOwnableFunction(f)|| | ||
| isTrustedCodehashAccessFunction(f); | ||
| } | ||
|
|
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