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Add operation to transfer mint authority (#983)
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11 files changed

+573
-25
lines changed

11 files changed

+573
-25
lines changed

‎chains/solana/contracts/programs/base-token-pool/src/common.rs‎

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Original file line numberDiff line numberDiff line change
@@ -420,6 +420,13 @@ pub struct OwnershipTransferred {
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pub mint: Pubkey,
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}
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#[event]
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pub struct MintAuthorityTransferred {
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pub mint: Pubkey,
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pub old_mint_authority: Pubkey,
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pub new_mint_authority: Pubkey,
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}
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#[error_code]
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pub enum CcipTokenPoolError {
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#[msg("Pool authority does not match token mint owner")]

‎chains/solana/contracts/programs/burnmint-token-pool/src/context.rs‎

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Original file line numberDiff line numberDiff line change
@@ -78,6 +78,31 @@ pub struct InitializeTokenPool<'info> {
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pub config: Account<'info, PoolConfig>, // Global Config PDA of the Token Pool
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}
8080

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#[derive(Accounts)]
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pub struct TransferMintAuthority<'info> {
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#[account(
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mut,
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seeds = [POOL_STATE_SEED, mint.key().as_ref()],
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bump,
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constraint = valid_version(state.version, MAX_POOL_STATE_V) @ CcipTokenPoolError::InvalidVersion,
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)]
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pub state: Account<'info, State>,
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#[account(mut)]
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pub mint: InterfaceAccount<'info, Mint>, // underlying token that the pool wraps
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#[account(address = *mint.to_account_info().owner)]
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/// CHECK: CPI to token program
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pub token_program: AccountInfo<'info>,
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#[account(
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seeds = [POOL_SIGNER_SEED, mint.key().as_ref()],
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bump,
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address = state.config.pool_signer,
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)]
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/// CHECK: unchecked CPI signer
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pub pool_signer: UncheckedAccount<'info>,
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#[account(mut, address = state.config.owner @ CcipTokenPoolError::Unauthorized)]
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pub authority: Signer<'info>,
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}
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81106
#[derive(Accounts)]
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#[instruction(mint: Pubkey)]
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pub struct InitializeStateVersion<'info> {

‎chains/solana/contracts/programs/burnmint-token-pool/src/lib.rs‎

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Original file line numberDiff line numberDiff line change
@@ -56,6 +56,66 @@ pub mod burnmint_token_pool {
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Ok(())
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}
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// This method transfers the mint authority of the mint, so it does a CPI to the Token Program.
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// It is only defined in the burn and mint program as the mint authority is only used for minting tokens.
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pub fn transfer_mint_authority<'info>(
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ctx: Context<'_, '_, 'info, 'info, TransferMintAuthority<'info>>,
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new_mint_authority: Pubkey,
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) -> Result<()> {
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let old_mint_authority = ctx
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.accounts
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.mint
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.mint_authority
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.unwrap_or(ctx.accounts.pool_signer.key());
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// Transfer the mint authority to the new mint authority using the corresponding Token Program. It can be token 22 or token spl
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let mut ix = spl_token_2022::instruction::set_authority(
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&spl_token_2022::ID, // use spl-token-2022 to compile instruction - change program later
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&ctx.accounts.mint.key(),
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Some(&new_mint_authority),
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spl_token_2022::instruction::AuthorityType::MintTokens,
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&old_mint_authority,
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&[ctx.accounts.pool_signer.key],
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)?;
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ix.program_id = ctx.accounts.state.config.token_program.key(); // set to user specified program
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let seeds = &[
83+
POOL_SIGNER_SEED,
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&ctx.accounts.mint.key().to_bytes(),
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&[ctx.bumps.pool_signer],
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];
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let account_infos: Vec<AccountInfo> =
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if old_mint_authority != ctx.accounts.pool_signer.key() {
90+
// If the old mint authority is not the pool signer, we need to include the multisig account in the instruction
91+
let multisig_account = ctx
92+
.remaining_accounts
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.iter()
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.find(|acc| acc.key() == old_mint_authority)
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.ok_or(CcipBnMTokenPoolError::InvalidMultisig)?;
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vec![
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ctx.accounts.mint.to_account_info().clone(),
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multisig_account.clone(),
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ctx.accounts.pool_signer.to_account_info().clone(),
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]
101+
} else {
102+
vec![
103+
ctx.accounts.mint.to_account_info().clone(),
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ctx.accounts.pool_signer.to_account_info().clone(),
105+
]
106+
};
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108+
invoke_signed(&ix, &account_infos, &[&seeds[..]])?;
109+
110+
emit!(MintAuthorityTransferred {
111+
mint: ctx.accounts.mint.key(),
112+
old_mint_authority,
113+
new_mint_authority,
114+
});
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Ok(())
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}
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59119
/// Returns the program type (name) and version.
60120
/// Used by offchain code to easily determine which program & version is being interacted with.
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///

‎chains/solana/contracts/target/idl/base_token_pool.json‎

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Original file line numberDiff line numberDiff line change
@@ -579,6 +579,26 @@
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}
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]
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},
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{
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"name": "MintAuthorityTransferred",
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"fields": [
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{
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"name": "mint",
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"type": "publicKey",
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"index": false
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},
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{
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"name": "oldMintAuthority",
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"type": "publicKey",
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"index": false
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},
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{
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"name": "newMintAuthority",
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"type": "publicKey",
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"index": false
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}
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]
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},
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{
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"name": "TokensConsumed",
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"fields": [

‎chains/solana/contracts/target/idl/burnmint_token_pool.json‎

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Original file line numberDiff line numberDiff line change
@@ -109,6 +109,42 @@
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}
110110
]
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},
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{
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"name": "transferMintAuthority",
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"accounts": [
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{
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"name": "state",
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"isMut": true,
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"isSigner": false
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},
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{
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"name": "mint",
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"isMut": true,
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"isSigner": false
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},
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{
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"name": "tokenProgram",
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"isMut": false,
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"isSigner": false
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},
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{
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"name": "poolSigner",
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"isMut": false,
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"isSigner": false
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},
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{
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"name": "authority",
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"isMut": true,
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"isSigner": true
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}
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],
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"args": [
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{
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"name": "newMintAuthority",
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"type": "publicKey"
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}
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]
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},
112148
{
113149
"name": "typeVersion",
114150
"docs": [

‎chains/solana/contracts/target/types/base_token_pool.ts‎

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Original file line numberDiff line numberDiff line change
@@ -579,6 +579,26 @@ export type BaseTokenPool = {
579579
}
580580
]
581581
},
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{
583+
"name": "MintAuthorityTransferred",
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"fields": [
585+
{
586+
"name": "mint",
587+
"type": "publicKey",
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"index": false
589+
},
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{
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"name": "oldMintAuthority",
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"type": "publicKey",
593+
"index": false
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},
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{
596+
"name": "newMintAuthority",
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"type": "publicKey",
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"index": false
599+
}
600+
]
601+
},
582602
{
583603
"name": "TokensConsumed",
584604
"fields": [
@@ -1287,6 +1307,26 @@ export const IDL: BaseTokenPool = {
12871307
}
12881308
]
12891309
},
1310+
{
1311+
"name": "MintAuthorityTransferred",
1312+
"fields": [
1313+
{
1314+
"name": "mint",
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"type": "publicKey",
1316+
"index": false
1317+
},
1318+
{
1319+
"name": "oldMintAuthority",
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"type": "publicKey",
1321+
"index": false
1322+
},
1323+
{
1324+
"name": "newMintAuthority",
1325+
"type": "publicKey",
1326+
"index": false
1327+
}
1328+
]
1329+
},
12901330
{
12911331
"name": "TokensConsumed",
12921332
"fields": [

‎chains/solana/contracts/target/types/burnmint_token_pool.ts‎

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Original file line numberDiff line numberDiff line change
@@ -109,6 +109,42 @@ export type BurnmintTokenPool = {
109109
}
110110
]
111111
},
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{
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"name": "transferMintAuthority",
114+
"accounts": [
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{
116+
"name": "state",
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"isMut": true,
118+
"isSigner": false
119+
},
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{
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"name": "mint",
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"isMut": true,
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"isSigner": false
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},
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{
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"name": "tokenProgram",
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"isMut": false,
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"isSigner": false
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},
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{
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"name": "poolSigner",
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"isMut": false,
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"isSigner": false
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},
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{
136+
"name": "authority",
137+
"isMut": true,
138+
"isSigner": true
139+
}
140+
],
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"args": [
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{
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"name": "newMintAuthority",
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"type": "publicKey"
145+
}
146+
]
147+
},
112148
{
113149
"name": "typeVersion",
114150
"docs": [
@@ -806,6 +842,42 @@ export const IDL: BurnmintTokenPool = {
806842
}
807843
]
808844
},
845+
{
846+
"name": "transferMintAuthority",
847+
"accounts": [
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{
849+
"name": "state",
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"isMut": true,
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"isSigner": false
852+
},
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{
854+
"name": "mint",
855+
"isMut": true,
856+
"isSigner": false
857+
},
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{
859+
"name": "tokenProgram",
860+
"isMut": false,
861+
"isSigner": false
862+
},
863+
{
864+
"name": "poolSigner",
865+
"isMut": false,
866+
"isSigner": false
867+
},
868+
{
869+
"name": "authority",
870+
"isMut": true,
871+
"isSigner": true
872+
}
873+
],
874+
"args": [
875+
{
876+
"name": "newMintAuthority",
877+
"type": "publicKey"
878+
}
879+
]
880+
},
809881
{
810882
"name": "typeVersion",
811883
"docs": [

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