Boot Rewards program
This commit is contained in:
Greg Fitzgerald
24
Cargo.lock
generated
24
Cargo.lock
generated
@ -2313,30 +2313,6 @@ dependencies = [
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"solana-sdk 0.13.0",
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"solana-sdk 0.13.0",
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]
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]
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[[package]]
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name = "solana-rewards-api"
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version = "0.13.0"
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dependencies = [
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"bincode 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
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"solana-sdk 0.13.0",
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"solana-vote-api 0.13.0",
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]
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[[package]]
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name = "solana-rewards-program"
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version = "0.13.0"
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dependencies = [
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"bincode 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
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"solana-logger 0.13.0",
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"solana-rewards-api 0.13.0",
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"solana-runtime 0.13.0",
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"solana-sdk 0.13.0",
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"solana-vote-api 0.13.0",
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]
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[[package]]
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[[package]]
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name = "solana-runtime"
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name = "solana-runtime"
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version = "0.13.0"
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version = "0.13.0"
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@ -22,8 +22,6 @@ members = [
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"programs/token_api",
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"programs/token_api",
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"programs/failure",
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"programs/failure",
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"programs/noop",
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"programs/noop",
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"programs/rewards",
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"programs/rewards_api",
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"programs/storage",
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"programs/storage",
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"programs/storage_api",
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"programs/storage_api",
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"programs/vote",
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"programs/vote",
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@ -19,7 +19,7 @@ CRATES=(
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metrics
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metrics
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client
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client
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drone
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drone
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programs/{budget_api,config_api,rewards_api,storage_api,token_api,vote_api}
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programs/{budget_api,config_api,storage_api,token_api,vote_api}
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runtime
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runtime
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programs/{budget,bpf_loader,config,vote,rewards,storage,token,vote}
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programs/{budget,bpf_loader,config,vote,rewards,storage,token,vote}
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vote-signer
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vote-signer
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@ -1,24 +0,0 @@
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[package]
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name = "solana-rewards-program"
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version = "0.13.0"
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description = "Solana rewards program"
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authors = ["Solana Maintainers <maintainers@solana.com>"]
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repository = "https://github.com/solana-labs/solana"
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license = "Apache-2.0"
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homepage = "https://solana.com/"
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edition = "2018"
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[dependencies]
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bincode = "1.1.2"
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log = "0.4.2"
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solana-logger = { path = "../../logger", version = "0.13.0" }
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solana-sdk = { path = "../../sdk", version = "0.13.0" }
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solana-rewards-api = { path = "../rewards_api", version = "0.13.0" }
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solana-vote-api = { path = "../vote_api", version = "0.13.0" }
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[dev-dependencies]
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solana-runtime = { path = "../../runtime", version = "0.13.0" }
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[lib]
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name = "solana_rewards_program"
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crate-type = ["cdylib"]
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@ -1,144 +0,0 @@
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//! Rewards program
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//! Exchanges validation and storage proofs for lamports
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use bincode::deserialize;
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use log::*;
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use solana_rewards_api::rewards_instruction::RewardsInstruction;
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use solana_sdk::account::KeyedAccount;
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use solana_sdk::pubkey::Pubkey;
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use solana_sdk::solana_entrypoint;
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use solana_sdk::transaction::InstructionError;
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use solana_vote_api::vote_state::VoteState;
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const INTEREST_PER_CREDIT_DIVISOR: u64 = 100; // Staker earns 1/INTEREST_PER_CREDIT_DIVISOR of interest per credit
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const MINIMUM_CREDITS_PER_REDEMPTION: u64 = 1; // Raise this to either minimize congestion or lengthen the interest period
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// Below is a temporary solution for calculating validator rewards. It targets an ROI for
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// stakeholders and assumes the validator votes on every slot. It's convenient in that
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// the calculation does not require knowing the size of the staking pool.
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//
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// TODO: Migrate to reward mechanism described by the book:
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// https://github.com/solana-labs/solana/blob/master/book/src/ed_vce_state_validation_protocol_based_rewards.md
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// https://github.com/solana-labs/solana/blob/master/book/src/staking-rewards.md
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fn calc_vote_reward(credits: u64, stake: u64) -> Result<u64, InstructionError> {
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if credits < MINIMUM_CREDITS_PER_REDEMPTION {
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error!("Credit redemption too early");
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Err(InstructionError::GenericError)?;
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}
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Ok(credits * (stake / INTEREST_PER_CREDIT_DIVISOR))
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}
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fn redeem_vote_credits(keyed_accounts: &mut [KeyedAccount]) -> Result<(), InstructionError> {
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// The owner of the vote account needs to authorize having its credits cleared.
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if keyed_accounts[0].signer_key().is_none() {
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error!("account[0] is unsigned");
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Err(InstructionError::InvalidArgument)?;
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}
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if !solana_vote_api::check_id(&keyed_accounts[0].account.owner) {
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error!("account[0] is not assigned to the VOTE_PROGRAM");
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Err(InstructionError::InvalidArgument)?;
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}
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// TODO: Verify the next instruction in the transaction being processed is
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// VoteInstruction::ClearCredits and that it points to the same vote account
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// as keyed_accounts[0].
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let vote_state = VoteState::deserialize(&keyed_accounts[0].account.data)?;
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// TODO: This assumes the stake is static. If not, it should use the account value
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// at the time of voting, not at credit redemption.
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let stake = keyed_accounts[0].account.lamports;
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if stake == 0 {
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error!("staking account has no stake");
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Err(InstructionError::InvalidArgument)?;
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}
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let lamports = calc_vote_reward(vote_state.credits(), stake)?;
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// Transfer rewards from the rewards pool to the staking account.
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keyed_accounts[1].account.lamports -= lamports;
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keyed_accounts[0].account.lamports += lamports;
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Ok(())
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}
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solana_entrypoint!(entrypoint);
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fn entrypoint(
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_program_id: &Pubkey,
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keyed_accounts: &mut [KeyedAccount],
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data: &[u8],
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_tick_height: u64,
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) -> Result<(), InstructionError> {
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solana_logger::setup();
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trace!("process_instruction: {:?}", data);
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trace!("keyed_accounts: {:?}", keyed_accounts);
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match deserialize(data).map_err(|_| InstructionError::InvalidInstructionData)? {
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RewardsInstruction::RedeemVoteCredits => redeem_vote_credits(keyed_accounts),
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use solana_rewards_api;
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use solana_rewards_api::rewards_state::RewardsState;
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use solana_sdk::account::Account;
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use solana_sdk::signature::{Keypair, KeypairUtil};
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use solana_vote_api::vote_instruction::Vote;
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use solana_vote_api::vote_state;
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fn create_rewards_account(lamports: u64) -> Account {
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let space = RewardsState::max_size();
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Account::new(lamports, space, &solana_rewards_api::id())
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}
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fn redeem_vote_credits_(
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rewards_id: &Pubkey,
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rewards_account: &mut Account,
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vote_id: &Pubkey,
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vote_account: &mut Account,
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) -> Result<(), InstructionError> {
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let mut keyed_accounts = [
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KeyedAccount::new(vote_id, true, vote_account),
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KeyedAccount::new(rewards_id, false, rewards_account),
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];
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redeem_vote_credits(&mut keyed_accounts)
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}
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#[test]
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fn test_redeem_vote_credits_via_program() {
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let vote_id = Keypair::new().pubkey();
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let mut vote_account = vote_state::create_vote_account(100);
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vote_state::initialize_and_deserialize(&vote_id, &mut vote_account).unwrap();
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for i in 0..vote_state::MAX_LOCKOUT_HISTORY {
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let vote = Vote::new(i as u64);
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let vote_state =
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vote_state::vote_and_deserialize(&vote_id, &mut vote_account, vote.clone())
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.unwrap();
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assert_eq!(vote_state.credits(), 0);
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}
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let vote = Vote::new(vote_state::MAX_LOCKOUT_HISTORY as u64 + 1);
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let vote_state =
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vote_state::vote_and_deserialize(&vote_id, &mut vote_account, vote.clone()).unwrap();
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assert_eq!(vote_state.credits(), 1);
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let rewards_id = Keypair::new().pubkey();
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let mut rewards_account = create_rewards_account(100);
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let lamports_before = vote_account.lamports;
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redeem_vote_credits_(
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&rewards_id,
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&mut rewards_account,
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&vote_id,
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&mut vote_account,
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)
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.unwrap();
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assert!(vote_account.lamports > lamports_before);
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}
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}
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@ -1,115 +0,0 @@
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use solana_rewards_api::rewards_transaction::RewardsTransaction;
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use solana_runtime::bank::{Bank, Result};
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use solana_sdk::genesis_block::GenesisBlock;
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use solana_sdk::hash::hash;
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use solana_sdk::pubkey::Pubkey;
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use solana_sdk::signature::{Keypair, KeypairUtil};
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use solana_vote_api::vote_state::{self, VoteState};
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use solana_vote_api::vote_transaction::VoteTransaction;
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struct RewardsBank<'a> {
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bank: &'a Bank,
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}
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impl<'a> RewardsBank<'a> {
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fn new(bank: &'a Bank) -> Self {
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bank.add_native_program("solana_rewards_program", &solana_rewards_api::id());
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Self { bank }
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}
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fn create_rewards_account(
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&self,
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from_keypair: &Keypair,
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rewards_id: &Pubkey,
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lamports: u64,
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) -> Result<()> {
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let blockhash = self.bank.last_blockhash();
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let tx = RewardsTransaction::new_account(from_keypair, rewards_id, blockhash, lamports, 0);
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self.bank.process_transaction(&tx)
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}
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fn create_vote_account(
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&self,
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from_keypair: &Keypair,
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vote_id: &Pubkey,
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lamports: u64,
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) -> Result<()> {
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let blockhash = self.bank.last_blockhash();
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let tx = VoteTransaction::new_account(from_keypair, vote_id, blockhash, lamports, 0);
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self.bank.process_transaction(&tx)
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}
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fn submit_vote(
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&self,
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staking_account: &Pubkey,
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vote_keypair: &Keypair,
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tick_height: u64,
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) -> Result<VoteState> {
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let blockhash = self.bank.last_blockhash();
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let tx =
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VoteTransaction::new_vote(staking_account, vote_keypair, tick_height, blockhash, 0);
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self.bank.process_transaction(&tx)?;
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self.bank.register_tick(&hash(blockhash.as_ref()));
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let vote_account = self.bank.get_account(&vote_keypair.pubkey()).unwrap();
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Ok(VoteState::deserialize(&vote_account.data).unwrap())
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}
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fn redeem_credits(&self, rewards_id: &Pubkey, vote_keypair: &Keypair) -> Result<VoteState> {
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let blockhash = self.bank.last_blockhash();
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let tx = RewardsTransaction::new_redeem_credits(&vote_keypair, rewards_id, blockhash, 0);
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self.bank.process_transaction(&tx)?;
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let vote_account = self.bank.get_account(&vote_keypair.pubkey()).unwrap();
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Ok(VoteState::deserialize(&vote_account.data).unwrap())
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}
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}
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#[test]
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fn test_redeem_vote_credits_via_bank() {
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let (genesis_block, from_keypair) = GenesisBlock::new(10_000);
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let bank = Bank::new(&genesis_block);
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let rewards_bank = RewardsBank::new(&bank);
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// Create a rewards account to hold all rewards pool lamports.
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let rewards_keypair = Keypair::new();
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let rewards_id = rewards_keypair.pubkey();
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rewards_bank
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.create_rewards_account(&from_keypair, &rewards_id, 100)
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.unwrap();
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// A staker create a vote account account and delegates a validator to vote on its behalf.
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let vote_keypair = Keypair::new();
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let vote_id = vote_keypair.pubkey();
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rewards_bank
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.create_vote_account(&from_keypair, &vote_id, 100)
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.unwrap();
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// The validator submits votes to accumulate credits.
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for i in 0..vote_state::MAX_LOCKOUT_HISTORY {
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let vote_state = rewards_bank
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.submit_vote(&vote_id, &vote_keypair, i as u64)
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.unwrap();
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assert_eq!(vote_state.credits(), 0);
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}
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let vote_state = rewards_bank
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.submit_vote(
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&vote_id,
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&vote_keypair,
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vote_state::MAX_LOCKOUT_HISTORY as u64 + 1,
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)
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.unwrap();
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assert_eq!(vote_state.credits(), 1);
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// TODO: Add VoteInstruction::RegisterStakerId so that we don't need to point the "to"
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// account to the "from" account.
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let to_id = vote_id;
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let to_lamports = bank.get_balance(&vote_id);
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// Periodically, the staker sumbits its vote account to the rewards pool
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// to exchange its credits for lamports.
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let vote_state = rewards_bank
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.redeem_credits(&rewards_id, &vote_keypair)
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.unwrap();
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assert!(bank.get_balance(&to_id) > to_lamports);
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assert_eq!(vote_state.credits(), 0);
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}
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@ -1,20 +0,0 @@
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[package]
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name = "solana-rewards-api"
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||||||
version = "0.13.0"
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description = "Solana rewards API"
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authors = ["Solana Maintainers <maintainers@solana.com>"]
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repository = "https://github.com/solana-labs/solana"
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|
||||||
license = "Apache-2.0"
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||||||
homepage = "https://solana.com/"
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|
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edition = "2018"
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||||||
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[dependencies]
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|
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bincode = "1.1.2"
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serde = "1.0.89"
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serde_derive = "1.0.89"
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|
||||||
solana-sdk = { path = "../../sdk", version = "0.13.0" }
|
|
||||||
solana-vote-api = { path = "../vote_api", version = "0.13.0" }
|
|
||||||
|
|
||||||
[lib]
|
|
||||||
name = "solana_rewards_api"
|
|
||||||
crate-type = ["lib"]
|
|
||||||
@ -1,18 +0,0 @@
|
|||||||
pub mod rewards_instruction;
|
|
||||||
pub mod rewards_state;
|
|
||||||
pub mod rewards_transaction;
|
|
||||||
|
|
||||||
use solana_sdk::pubkey::Pubkey;
|
|
||||||
|
|
||||||
const REWARDS_PROGRAM_ID: [u8; 32] = [
|
|
||||||
133, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
||||||
0,
|
|
||||||
];
|
|
||||||
|
|
||||||
pub fn check_id(program_id: &Pubkey) -> bool {
|
|
||||||
program_id.as_ref() == REWARDS_PROGRAM_ID
|
|
||||||
}
|
|
||||||
|
|
||||||
pub fn id() -> Pubkey {
|
|
||||||
Pubkey::new(&REWARDS_PROGRAM_ID)
|
|
||||||
}
|
|
||||||
@ -1,19 +0,0 @@
|
|||||||
use crate::id;
|
|
||||||
use serde_derive::{Deserialize, Serialize};
|
|
||||||
use solana_sdk::pubkey::Pubkey;
|
|
||||||
use solana_sdk::transaction::{AccountMeta, Instruction};
|
|
||||||
|
|
||||||
#[derive(Serialize, Deserialize, Debug, PartialEq, Eq, Clone)]
|
|
||||||
pub enum RewardsInstruction {
|
|
||||||
RedeemVoteCredits,
|
|
||||||
}
|
|
||||||
|
|
||||||
impl RewardsInstruction {
|
|
||||||
pub fn new_redeem_vote_credits(vote_id: &Pubkey, rewards_id: &Pubkey) -> Instruction {
|
|
||||||
let account_metas = vec![
|
|
||||||
AccountMeta::new(*vote_id, true),
|
|
||||||
AccountMeta::new(*rewards_id, false),
|
|
||||||
];
|
|
||||||
Instruction::new(id(), &RewardsInstruction::RedeemVoteCredits, account_metas)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
@ -1,13 +0,0 @@
|
|||||||
use bincode::serialized_size;
|
|
||||||
use serde_derive::{Deserialize, Serialize};
|
|
||||||
|
|
||||||
#[derive(Debug, Default, Serialize, Deserialize, PartialEq, Eq)]
|
|
||||||
pub struct RewardsState {}
|
|
||||||
|
|
||||||
impl RewardsState {
|
|
||||||
/// Upper limit on the serialized size of RewardsState.
|
|
||||||
pub fn max_size() -> usize {
|
|
||||||
let rewards_state = RewardsState::default();
|
|
||||||
serialized_size(&rewards_state).unwrap() as usize
|
|
||||||
}
|
|
||||||
}
|
|
||||||
@ -1,49 +0,0 @@
|
|||||||
//! The `rewards_transaction` module provides functionality for creating a global
|
|
||||||
//! rewards account and enabling stakers to redeem credits from their vote accounts.
|
|
||||||
|
|
||||||
use crate::id;
|
|
||||||
use crate::rewards_instruction::RewardsInstruction;
|
|
||||||
use crate::rewards_state::RewardsState;
|
|
||||||
use solana_sdk::hash::Hash;
|
|
||||||
use solana_sdk::pubkey::Pubkey;
|
|
||||||
use solana_sdk::signature::{Keypair, KeypairUtil};
|
|
||||||
use solana_sdk::system_transaction::SystemTransaction;
|
|
||||||
use solana_sdk::transaction::Transaction;
|
|
||||||
use solana_vote_api::vote_instruction::VoteInstruction;
|
|
||||||
|
|
||||||
pub struct RewardsTransaction {}
|
|
||||||
|
|
||||||
impl RewardsTransaction {
|
|
||||||
pub fn new_account(
|
|
||||||
from_keypair: &Keypair,
|
|
||||||
rewards_id: &Pubkey,
|
|
||||||
blockhash: Hash,
|
|
||||||
lamports: u64,
|
|
||||||
fee: u64,
|
|
||||||
) -> Transaction {
|
|
||||||
SystemTransaction::new_program_account(
|
|
||||||
from_keypair,
|
|
||||||
rewards_id,
|
|
||||||
blockhash,
|
|
||||||
lamports,
|
|
||||||
RewardsState::max_size() as u64,
|
|
||||||
&id(),
|
|
||||||
fee,
|
|
||||||
)
|
|
||||||
}
|
|
||||||
|
|
||||||
pub fn new_redeem_credits(
|
|
||||||
vote_keypair: &Keypair,
|
|
||||||
rewards_id: &Pubkey,
|
|
||||||
blockhash: Hash,
|
|
||||||
fee: u64,
|
|
||||||
) -> Transaction {
|
|
||||||
let vote_id = vote_keypair.pubkey();
|
|
||||||
let redeem_ix = RewardsInstruction::new_redeem_vote_credits(&vote_id, rewards_id);
|
|
||||||
let clear_ix = VoteInstruction::new_clear_credits(&vote_id);
|
|
||||||
let mut tx = Transaction::new(vec![redeem_ix, clear_ix]);
|
|
||||||
tx.fee = fee;
|
|
||||||
tx.sign(&[vote_keypair], blockhash);
|
|
||||||
tx
|
|
||||||
}
|
|
||||||
}
|
|
||||||
Reference in New Issue
Block a user