Fix blind keyed_account indexing in BPF and Move loader (#6810)
This commit is contained in:
parent
75fd13de5d
commit
cd5ec8cd35
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@ -18,7 +18,7 @@ use log::*;
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use solana_rbpf::{memory_region::MemoryRegion, EbpfVm};
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use solana_sdk::account::KeyedAccount;
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use solana_sdk::instruction::InstructionError;
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use solana_sdk::instruction_processor_utils::limited_deserialize;
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use solana_sdk::instruction_processor_utils::{limited_deserialize, next_keyed_account};
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use solana_sdk::loader_instruction::LoaderInstruction;
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use solana_sdk::pubkey::Pubkey;
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use solana_sdk::sysvar::rent;
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@ -93,58 +93,61 @@ pub fn process_instruction(
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if let Ok(instruction) = limited_deserialize(ix_data) {
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match instruction {
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LoaderInstruction::Write { offset, bytes } => {
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if keyed_accounts[0].signer_key().is_none() {
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let mut keyed_accounts_iter = keyed_accounts.iter_mut();
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let program = next_keyed_account(&mut keyed_accounts_iter)?;
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if program.signer_key().is_none() {
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warn!("key[0] did not sign the transaction");
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return Err(InstructionError::GenericError);
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return Err(InstructionError::MissingRequiredSignature);
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}
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let offset = offset as usize;
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let len = bytes.len();
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trace!("Write: offset={} length={}", offset, len);
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if keyed_accounts[0].account.data.len() < offset + len {
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if program.account.data.len() < offset + len {
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warn!(
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"Write overflow: {} < {}",
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keyed_accounts[0].account.data.len(),
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program.account.data.len(),
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offset + len
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);
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return Err(InstructionError::GenericError);
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return Err(InstructionError::AccountDataTooSmall);
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}
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keyed_accounts[0].account.data[offset..offset + len].copy_from_slice(&bytes);
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program.account.data[offset..offset + len].copy_from_slice(&bytes);
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}
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LoaderInstruction::Finalize => {
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if keyed_accounts.len() < 2 {
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return Err(InstructionError::InvalidInstructionData);
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}
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if keyed_accounts[0].signer_key().is_none() {
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let mut keyed_accounts_iter = keyed_accounts.iter_mut();
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let program = next_keyed_account(&mut keyed_accounts_iter)?;
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let rent = next_keyed_account(&mut keyed_accounts_iter)?;
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if program.signer_key().is_none() {
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warn!("key[0] did not sign the transaction");
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return Err(InstructionError::GenericError);
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return Err(InstructionError::MissingRequiredSignature);
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}
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rent::verify_rent_exemption(&keyed_accounts[0], &keyed_accounts[1])?;
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rent::verify_rent_exemption(&program, &rent)?;
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keyed_accounts[0].account.executable = true;
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info!(
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"Finalize: account {:?}",
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keyed_accounts[0].signer_key().unwrap()
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);
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program.account.executable = true;
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info!("Finalize: account {:?}", program.signer_key().unwrap());
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}
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LoaderInstruction::InvokeMain { data } => {
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if !keyed_accounts[0].account.executable {
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warn!("BPF account not executable");
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return Err(InstructionError::GenericError);
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let mut keyed_accounts_iter = keyed_accounts.iter_mut();
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let program = next_keyed_account(&mut keyed_accounts_iter)?;
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if !program.account.executable {
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warn!("BPF program account not executable");
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return Err(InstructionError::AccountNotExecutable);
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}
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let (progs, params) = keyed_accounts.split_at_mut(1);
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let prog = &progs[0].account.data;
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let (mut vm, heap_region) = match create_vm(prog) {
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let (mut vm, heap_region) = match create_vm(&program.account.data) {
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Ok(info) => info,
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Err(e) => {
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warn!("Failed to create BPF VM: {}", e);
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return Err(InstructionError::GenericError);
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}
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};
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let mut v = serialize_parameters(program_id, params, &data);
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let parameter_accounts = keyed_accounts_iter.into_slice();
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let mut parameter_bytes =
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serialize_parameters(program_id, parameter_accounts, &data);
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info!("Call BPF program");
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match vm.execute_program(v.as_mut_slice(), &[], &[heap_region]) {
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match vm.execute_program(parameter_bytes.as_mut_slice(), &[], &[heap_region]) {
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Ok(status) => match u32::try_from(status) {
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Ok(status) => {
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if status > 0 {
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@ -162,13 +165,13 @@ pub fn process_instruction(
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return Err(InstructionError::GenericError);
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}
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}
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deserialize_parameters(params, &v);
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deserialize_parameters(parameter_accounts, ¶meter_bytes);
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info!("BPF program success");
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}
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}
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} else {
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warn!("Invalid instruction data: {:?}", ix_data);
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return Err(InstructionError::GenericError);
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return Err(InstructionError::InvalidInstructionData);
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}
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Ok(())
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}
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@ -176,12 +179,15 @@ pub fn process_instruction(
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#[cfg(test)]
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mod tests {
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use super::*;
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use solana_sdk::account::Account;
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use std::fs::File;
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use std::io::Read;
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#[test]
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#[should_panic(expected = "Error: Exceeded maximum number of instructions allowed")]
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fn test_non_terminating_program() {
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fn test_bpf_loader_non_terminating_program() {
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#[rustfmt::skip]
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let prog = &[
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let program = &[
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0x07, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, // r6 + 1
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0x05, 0x00, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, // goto -2
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0x95, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exit
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@ -191,7 +197,134 @@ mod tests {
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let mut vm = EbpfVm::new(None).unwrap();
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vm.set_verifier(bpf_verifier::check).unwrap();
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vm.set_max_instruction_count(10).unwrap();
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vm.set_program(prog).unwrap();
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vm.set_program(program).unwrap();
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vm.execute_program(input, &[], &[]).unwrap();
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}
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#[test]
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fn test_bpf_loader_write() {
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let program_id = Pubkey::new_rand();
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let program_key = Pubkey::new_rand();
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let mut program_account = Account::new(1, 0, &program_id);
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let mut keyed_accounts = vec![KeyedAccount::new(&program_key, false, &mut program_account)];
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let ix_data = bincode::serialize(&LoaderInstruction::Write {
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offset: 3,
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bytes: vec![1, 2, 3],
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})
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.unwrap();
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// Case: Empty keyed accounts
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assert_eq!(
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Err(InstructionError::NotEnoughAccountKeys),
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process_instruction(&program_id, &mut vec![], &ix_data)
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);
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// Case: Not signed
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assert_eq!(
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Err(InstructionError::MissingRequiredSignature),
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process_instruction(&program_id, &mut keyed_accounts, &ix_data)
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);
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// Case: Write bytes to an offset
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let mut keyed_accounts = vec![KeyedAccount::new(&program_key, true, &mut program_account)];
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keyed_accounts[0].account.data = vec![0; 6];
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assert_eq!(
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Ok(()),
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process_instruction(&program_id, &mut keyed_accounts, &ix_data)
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);
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assert_eq!(vec![0, 0, 0, 1, 2, 3], keyed_accounts[0].account.data);
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// Case: Overflow
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let mut keyed_accounts = vec![KeyedAccount::new(&program_key, true, &mut program_account)];
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keyed_accounts[0].account.data = vec![0; 5];
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assert_eq!(
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Err(InstructionError::AccountDataTooSmall),
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process_instruction(&program_id, &mut keyed_accounts, &ix_data)
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);
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}
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#[test]
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fn test_bpf_loader_finalize() {
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let program_id = Pubkey::new_rand();
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let program_key = Pubkey::new_rand();
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let rent_key = rent::id();
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let mut program_account = Account::new(1, 0, &program_id);
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let mut keyed_accounts = vec![KeyedAccount::new(&program_key, false, &mut program_account)];
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let ix_data = bincode::serialize(&LoaderInstruction::Finalize).unwrap();
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// Case: Empty keyed accounts
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assert_eq!(
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Err(InstructionError::NotEnoughAccountKeys),
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process_instruction(&program_id, &mut vec![], &ix_data)
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);
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let mut rent_account = rent::create_account(1, &rent::Rent::default());
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keyed_accounts.push(KeyedAccount::new(&rent_key, false, &mut rent_account));
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// Case: Not signed
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assert_eq!(
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Err(InstructionError::MissingRequiredSignature),
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process_instruction(&program_id, &mut keyed_accounts, &ix_data)
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);
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// Case: Finalize
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let mut keyed_accounts = vec![
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KeyedAccount::new(&program_key, true, &mut program_account),
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KeyedAccount::new(&rent_key, false, &mut rent_account),
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];
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assert_eq!(
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Ok(()),
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process_instruction(&program_id, &mut keyed_accounts, &ix_data)
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);
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assert!(keyed_accounts[0].account.executable);
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}
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#[test]
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fn test_bpf_loader_invoke_main() {
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let program_id = Pubkey::new_rand();
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let program_key = Pubkey::new_rand();
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// Create program account
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let mut file = File::open("test_elfs/noop.so").expect("file open failed");
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let mut elf = Vec::new();
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file.read_to_end(&mut elf).unwrap();
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let mut program_account = Account::new(1, 0, &program_id);
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program_account.data = elf;
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program_account.executable = true;
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let mut keyed_accounts = vec![KeyedAccount::new(&program_key, false, &mut program_account)];
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let ix_data = bincode::serialize(&LoaderInstruction::InvokeMain { data: vec![] }).unwrap();
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// Case: Empty keyed accounts
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assert_eq!(
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Err(InstructionError::NotEnoughAccountKeys),
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process_instruction(&program_id, &mut vec![], &ix_data)
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);
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// Case: Only a program account
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assert_eq!(
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Ok(()),
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process_instruction(&program_id, &mut keyed_accounts, &ix_data)
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);
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// Case: Account not executable
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keyed_accounts[0].account.executable = false;
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assert_eq!(
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Err(InstructionError::AccountNotExecutable),
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process_instruction(&program_id, &mut keyed_accounts, &ix_data)
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);
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keyed_accounts[0].account.executable = true;
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// Case: With program and parameter account
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let mut parameter_account = Account::new(1, 0, &program_id);
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keyed_accounts.push(KeyedAccount::new(
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&program_key,
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false,
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&mut parameter_account,
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));
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assert_eq!(
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Ok(()),
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process_instruction(&program_id, &mut keyed_accounts, &ix_data)
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);
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}
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}
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Binary file not shown.
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@ -5,9 +5,13 @@ use bytecode_verifier::verifier::{VerifiedModule, VerifiedScript};
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use log::*;
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use serde_derive::{Deserialize, Serialize};
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use solana_sdk::{
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account::KeyedAccount, instruction::InstructionError,
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instruction_processor_utils::limited_deserialize, loader_instruction::LoaderInstruction,
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move_loader::id, pubkey::Pubkey, sysvar::rent,
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account::KeyedAccount,
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instruction::InstructionError,
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instruction_processor_utils::{limited_deserialize, next_keyed_account},
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loader_instruction::LoaderInstruction,
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move_loader::id,
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pubkey::Pubkey,
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sysvar::rent,
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};
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use types::{
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account_address::AccountAddress,
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@ -50,9 +54,6 @@ pub fn process_instruction(
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}
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}
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pub const PROGRAM_INDEX: usize = 0;
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pub const GENESIS_INDEX: usize = 1;
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/// Command to invoke
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#[derive(Debug, Serialize, Deserialize)]
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pub enum InvokeCommand {
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@ -228,21 +229,30 @@ impl MoveProcessor {
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}
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fn keyed_accounts_to_data_store(
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genesis_key: &Pubkey,
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keyed_accounts: &[KeyedAccount],
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) -> Result<DataStore, InstructionError> {
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let mut data_store = DataStore::default();
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for keyed_account in keyed_accounts {
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match limited_deserialize(&keyed_account.account.data)? {
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LibraAccountState::Genesis(write_set) => data_store.apply_write_set(&write_set),
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LibraAccountState::User(owner, write_set) => {
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if owner != *genesis_key {
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debug!("All user accounts must be owned by the genesis");
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return Err(InstructionError::InvalidArgument);
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}
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data_store.apply_write_set(&write_set)
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let mut keyed_accounts_iter = keyed_accounts.iter();
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let genesis = next_keyed_account(&mut keyed_accounts_iter)?;
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match limited_deserialize(&genesis.account.data)? {
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LibraAccountState::Genesis(write_set) => data_store.apply_write_set(&write_set),
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_ => {
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debug!("Must include a genesis account");
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return Err(InstructionError::InvalidArgument);
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}
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}
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for keyed_account in keyed_accounts_iter {
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if let LibraAccountState::User(owner, write_set) =
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limited_deserialize(&keyed_account.account.data)?
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{
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if owner != *genesis.unsigned_key() {
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debug!("All user accounts must be owned by the genesis");
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return Err(InstructionError::InvalidArgument);
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}
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_ => (), // ignore unallocated accounts
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data_store.apply_write_set(&write_set)
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}
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}
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Ok(data_store)
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@ -256,8 +266,11 @@ impl MoveProcessor {
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.into_write_sets()
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.map_err(|_| InstructionError::GenericError)?;
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let mut keyed_accounts_iter = keyed_accounts.iter_mut();
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// Genesis account holds both mint and stdlib
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let genesis_key = *keyed_accounts[GENESIS_INDEX].unsigned_key();
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let genesis = next_keyed_account(&mut keyed_accounts_iter)?;
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let genesis_key = *genesis.unsigned_key();
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let mut write_set = write_sets
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.remove(&account_config::association_address())
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.ok_or_else(Self::missing_account)?
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@ -272,11 +285,11 @@ impl MoveProcessor {
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let write_set = write_set.freeze().unwrap();
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Self::serialize_and_enforce_length(
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&LibraAccountState::Genesis(write_set),
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&mut keyed_accounts[GENESIS_INDEX].account.data,
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&mut genesis.account.data,
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)?;
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// Now do the rest of the accounts
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for keyed_account in keyed_accounts[GENESIS_INDEX + 1..].iter_mut() {
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for keyed_account in keyed_accounts_iter {
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let write_set = write_sets
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.remove(&pubkey_to_address(keyed_account.unsigned_key()))
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.ok_or_else(Self::missing_account)?;
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@ -297,38 +310,42 @@ impl MoveProcessor {
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offset: u32,
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bytes: &[u8],
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) -> Result<(), InstructionError> {
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if keyed_accounts[PROGRAM_INDEX].signer_key().is_none() {
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let mut keyed_accounts_iter = keyed_accounts.iter_mut();
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let program = next_keyed_account(&mut keyed_accounts_iter)?;
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if program.signer_key().is_none() {
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debug!("Error: key[0] did not sign the transaction");
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return Err(InstructionError::GenericError);
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return Err(InstructionError::MissingRequiredSignature);
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}
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let offset = offset as usize;
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let len = bytes.len();
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trace!("Write: offset={} length={}", offset, len);
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if keyed_accounts[PROGRAM_INDEX].account.data.len() < offset + len {
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if program.account.data.len() < offset + len {
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debug!(
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"Error: Write overflow: {} < {}",
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keyed_accounts[PROGRAM_INDEX].account.data.len(),
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program.account.data.len(),
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offset + len
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);
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return Err(InstructionError::GenericError);
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return Err(InstructionError::AccountDataTooSmall);
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}
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keyed_accounts[PROGRAM_INDEX].account.data[offset..offset + len].copy_from_slice(&bytes);
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program.account.data[offset..offset + len].copy_from_slice(&bytes);
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Ok(())
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}
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pub fn do_finalize(keyed_accounts: &mut [KeyedAccount]) -> Result<(), InstructionError> {
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if keyed_accounts.len() < 2 {
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return Err(InstructionError::InvalidInstructionData);
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}
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if keyed_accounts[PROGRAM_INDEX].signer_key().is_none() {
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let mut keyed_accounts_iter = keyed_accounts.iter_mut();
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let program = next_keyed_account(&mut keyed_accounts_iter)?;
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let rent = next_keyed_account(&mut keyed_accounts_iter)?;
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if program.signer_key().is_none() {
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debug!("Error: key[0] did not sign the transaction");
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return Err(InstructionError::GenericError);
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return Err(InstructionError::MissingRequiredSignature);
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}
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rent::verify_rent_exemption(&keyed_accounts[0], &keyed_accounts[1])?;
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rent::verify_rent_exemption(&program, &rent)?;
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let (compiled_script, compiled_modules) =
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Self::deserialize_compiled_program(&keyed_accounts[PROGRAM_INDEX].account.data)?;
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Self::deserialize_compiled_program(&program.account.data)?;
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let verified_script = VerifiedScript::new(compiled_script).unwrap();
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let verified_modules = compiled_modules
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@ -339,16 +356,14 @@ impl MoveProcessor {
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Self::serialize_and_enforce_length(
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&Self::verify_program(&verified_script, &verified_modules)?,
|
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&mut keyed_accounts[PROGRAM_INDEX].account.data,
|
||||
&mut program.account.data,
|
||||
)?;
|
||||
|
||||
keyed_accounts[PROGRAM_INDEX].account.executable = true;
|
||||
program.account.executable = true;
|
||||
|
||||
info!(
|
||||
"Finalize: {:?}",
|
||||
keyed_accounts[PROGRAM_INDEX]
|
||||
.signer_key()
|
||||
.unwrap_or(&Pubkey::default())
|
||||
program.signer_key().unwrap_or(&Pubkey::default())
|
||||
);
|
||||
Ok(())
|
||||
}
|
||||
|
@ -359,19 +374,18 @@ impl MoveProcessor {
|
|||
) -> Result<(), InstructionError> {
|
||||
match limited_deserialize(&data)? {
|
||||
InvokeCommand::CreateGenesis(amount) => {
|
||||
if keyed_accounts.is_empty() {
|
||||
debug!("Error: Requires an unallocated account");
|
||||
return Err(InstructionError::InvalidArgument);
|
||||
}
|
||||
if keyed_accounts[0].account.owner != id() {
|
||||
let mut keyed_accounts_iter = keyed_accounts.iter_mut();
|
||||
let program = next_keyed_account(&mut keyed_accounts_iter)?;
|
||||
|
||||
if program.account.owner != id() {
|
||||
debug!("Error: Move program account not owned by Move loader");
|
||||
return Err(InstructionError::InvalidArgument);
|
||||
}
|
||||
|
||||
match limited_deserialize(&keyed_accounts[0].account.data)? {
|
||||
match limited_deserialize(&program.account.data)? {
|
||||
LibraAccountState::Unallocated => Self::serialize_and_enforce_length(
|
||||
&LibraAccountState::create_genesis(amount)?,
|
||||
&mut keyed_accounts[0].account.data,
|
||||
&mut program.account.data,
|
||||
),
|
||||
_ => {
|
||||
debug!("Error: Must provide an unallocated account");
|
||||
|
@ -384,26 +398,23 @@ impl MoveProcessor {
|
|||
function_name,
|
||||
args,
|
||||
} => {
|
||||
if keyed_accounts.len() < 2 {
|
||||
debug!("Error: Requires at least a program and a genesis accounts");
|
||||
return Err(InstructionError::InvalidArgument);
|
||||
}
|
||||
if keyed_accounts[PROGRAM_INDEX].account.owner != id() {
|
||||
let mut keyed_accounts_iter = keyed_accounts.iter_mut();
|
||||
let program = next_keyed_account(&mut keyed_accounts_iter)?;
|
||||
|
||||
if program.account.owner != id() {
|
||||
debug!("Error: Move program account not owned by Move loader");
|
||||
return Err(InstructionError::InvalidArgument);
|
||||
}
|
||||
if !keyed_accounts[PROGRAM_INDEX].account.executable {
|
||||
if !program.account.executable {
|
||||
debug!("Error: Move program account not executable");
|
||||
return Err(InstructionError::InvalidArgument);
|
||||
return Err(InstructionError::AccountNotExecutable);
|
||||
}
|
||||
|
||||
let mut data_store = Self::keyed_accounts_to_data_store(
|
||||
keyed_accounts[GENESIS_INDEX].unsigned_key(),
|
||||
&keyed_accounts[GENESIS_INDEX..],
|
||||
)?;
|
||||
let (verified_script, verified_modules) = Self::deserialize_verified_program(
|
||||
&keyed_accounts[PROGRAM_INDEX].account.data,
|
||||
)?;
|
||||
let data_accounts = keyed_accounts_iter.into_slice();
|
||||
|
||||
let mut data_store = Self::keyed_accounts_to_data_store(&data_accounts)?;
|
||||
let (verified_script, verified_modules) =
|
||||
Self::deserialize_verified_program(&program.account.data)?;
|
||||
|
||||
let output = Self::execute(
|
||||
sender_address,
|
||||
|
@ -418,7 +429,7 @@ impl MoveProcessor {
|
|||
}
|
||||
|
||||
data_store.apply_write_set(&output.write_set());
|
||||
Self::data_store_to_keyed_accounts(data_store, keyed_accounts)
|
||||
Self::data_store_to_keyed_accounts(data_store, data_accounts)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
@ -585,22 +596,27 @@ mod tests {
|
|||
fn test_invoke_mint_to_address() {
|
||||
solana_logger::setup();
|
||||
|
||||
let amount = 42;
|
||||
let accounts = mint_coins(amount).unwrap();
|
||||
|
||||
let mut data_store = DataStore::default();
|
||||
match bincode::deserialize(&accounts[GENESIS_INDEX + 1].account.data).unwrap() {
|
||||
|
||||
let amount = 42;
|
||||
let mut accounts = mint_coins(amount).unwrap();
|
||||
let mut accounts_iter = accounts.iter_mut();
|
||||
|
||||
let _program = next_libra_account(&mut accounts_iter).unwrap();
|
||||
let genesis = next_libra_account(&mut accounts_iter).unwrap();
|
||||
let payee = next_libra_account(&mut accounts_iter).unwrap();
|
||||
match bincode::deserialize(&payee.account.data).unwrap() {
|
||||
LibraAccountState::User(owner, write_set) => {
|
||||
if owner != accounts[GENESIS_INDEX].key {
|
||||
if owner != genesis.key {
|
||||
panic!();
|
||||
}
|
||||
data_store.apply_write_set(&write_set)
|
||||
}
|
||||
_ => panic!("Invalid account state"),
|
||||
}
|
||||
let payee_resource = data_store
|
||||
.read_account_resource(&accounts[GENESIS_INDEX + 1].address)
|
||||
.unwrap();
|
||||
|
||||
let payee_resource = data_store.read_account_resource(&payee.address).unwrap();
|
||||
println!("{}:{}", line!(), file!());
|
||||
|
||||
assert_eq!(amount, payee_resource.balance());
|
||||
assert_eq!(0, payee_resource.sequence_number());
|
||||
|
@ -611,6 +627,11 @@ mod tests {
|
|||
solana_logger::setup();
|
||||
let amount_to_mint = 42;
|
||||
let mut accounts = mint_coins(amount_to_mint).unwrap();
|
||||
let mut accounts_iter = accounts.iter_mut();
|
||||
|
||||
let _program = next_libra_account(&mut accounts_iter).unwrap();
|
||||
let genesis = next_libra_account(&mut accounts_iter).unwrap();
|
||||
let sender = next_libra_account(&mut accounts_iter).unwrap();
|
||||
|
||||
let code = "
|
||||
import 0x0.LibraAccount;
|
||||
|
@ -620,14 +641,9 @@ mod tests {
|
|||
return;
|
||||
}
|
||||
";
|
||||
let mut program =
|
||||
LibraAccount::create_program(&accounts[GENESIS_INDEX + 1].address, code, vec![]);
|
||||
let mut program = LibraAccount::create_program(&genesis.address, code, vec![]);
|
||||
let mut payee = LibraAccount::create_unallocated();
|
||||
|
||||
let (genesis, sender) = accounts.split_at_mut(GENESIS_INDEX + 1);
|
||||
let genesis = &mut genesis[1];
|
||||
let sender = &mut sender[0];
|
||||
|
||||
let rent_id = rent::id();
|
||||
let mut rent_account = rent::create_account(1, &Rent::default());
|
||||
let mut keyed_accounts = vec![
|
||||
|
@ -662,9 +678,7 @@ mod tests {
|
|||
)
|
||||
.unwrap();
|
||||
|
||||
let data_store =
|
||||
MoveProcessor::keyed_accounts_to_data_store(&genesis.key, &keyed_accounts[1..])
|
||||
.unwrap();
|
||||
let data_store = MoveProcessor::keyed_accounts_to_data_store(&keyed_accounts[1..]).unwrap();
|
||||
let sender_resource = data_store.read_account_resource(&sender.address).unwrap();
|
||||
let payee_resource = data_store.read_account_resource(&payee.address).unwrap();
|
||||
|
||||
|
@ -876,6 +890,11 @@ mod tests {
|
|||
pub address: AccountAddress,
|
||||
pub account: Account,
|
||||
}
|
||||
|
||||
pub fn next_libra_account<I: Iterator>(iter: &mut I) -> Result<I::Item, InstructionError> {
|
||||
iter.next().ok_or(InstructionError::NotEnoughAccountKeys)
|
||||
}
|
||||
|
||||
impl LibraAccount {
|
||||
pub fn new(key: Pubkey, account: Account) -> Self {
|
||||
let address = pubkey_to_address(&key);
|
||||
|
|
|
@ -73,6 +73,9 @@ pub enum InstructionError {
|
|||
/// A non-system program changed the size of the account data
|
||||
AccountDataSizeChanged,
|
||||
|
||||
/// the instruction expected an executable account
|
||||
AccountNotExecutable,
|
||||
|
||||
/// CustomError allows on-chain programs to implement program-specific error types and see
|
||||
/// them returned by the Solana runtime. A CustomError may be any type that is represented
|
||||
/// as or serialized to a u32 integer.
|
||||
|
|
Loading…
Reference in New Issue