2022-07-24 11:20:16 -07:00
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use {
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super::*,
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crate::declare_syscall,
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solana_sdk::syscalls::{
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MAX_CPI_ACCOUNT_INFOS, MAX_CPI_INSTRUCTION_ACCOUNTS, MAX_CPI_INSTRUCTION_DATA_LEN,
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},
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};
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2022-07-16 10:33:57 -07:00
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struct CallerAccount<'a> {
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lamports: &'a mut u64,
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owner: &'a mut Pubkey,
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original_data_len: usize,
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data: &'a mut [u8],
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vm_data_addr: u64,
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ref_to_len_in_vm: &'a mut u64,
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executable: bool,
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rent_epoch: u64,
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}
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type TranslatedAccounts<'a> = Vec<(usize, Option<CallerAccount<'a>>)>;
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/// Implemented by language specific data structure translators
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trait SyscallInvokeSigned<'a, 'b> {
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fn get_context_mut(&self) -> Result<RefMut<&'a mut InvokeContext<'b>>, EbpfError<BpfError>>;
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fn translate_instruction(
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&self,
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addr: u64,
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memory_mapping: &mut MemoryMapping,
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invoke_context: &mut InvokeContext,
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) -> Result<Instruction, EbpfError<BpfError>>;
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fn translate_accounts<'c>(
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&'c self,
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instruction_accounts: &[InstructionAccount],
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program_indices: &[usize],
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account_infos_addr: u64,
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account_infos_len: u64,
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memory_mapping: &mut MemoryMapping,
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invoke_context: &mut InvokeContext,
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) -> Result<TranslatedAccounts<'c>, EbpfError<BpfError>>;
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fn translate_signers(
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&self,
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program_id: &Pubkey,
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signers_seeds_addr: u64,
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signers_seeds_len: u64,
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memory_mapping: &mut MemoryMapping,
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invoke_context: &InvokeContext,
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) -> Result<Vec<Pubkey>, EbpfError<BpfError>>;
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}
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declare_syscall!(
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/// Cross-program invocation called from Rust
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SyscallInvokeSignedRust,
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fn call(
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&mut self,
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instruction_addr: u64,
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account_infos_addr: u64,
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account_infos_len: u64,
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signers_seeds_addr: u64,
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signers_seeds_len: u64,
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memory_mapping: &mut MemoryMapping,
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result: &mut Result<u64, EbpfError<BpfError>>,
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) {
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*result = call(
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self,
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instruction_addr,
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account_infos_addr,
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account_infos_len,
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signers_seeds_addr,
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signers_seeds_len,
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memory_mapping,
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);
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}
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);
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impl<'a, 'b> SyscallInvokeSigned<'a, 'b> for SyscallInvokeSignedRust<'a, 'b> {
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fn get_context_mut(&self) -> Result<RefMut<&'a mut InvokeContext<'b>>, EbpfError<BpfError>> {
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self.invoke_context
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.try_borrow_mut()
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.map_err(|_| SyscallError::InvokeContextBorrowFailed.into())
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}
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fn translate_instruction(
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&self,
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addr: u64,
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memory_mapping: &mut MemoryMapping,
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invoke_context: &mut InvokeContext,
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) -> Result<Instruction, EbpfError<BpfError>> {
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let ix = translate_type::<Instruction>(
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memory_mapping,
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addr,
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invoke_context.get_check_aligned(),
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)?;
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check_instruction_size(ix.accounts.len(), ix.data.len(), invoke_context)?;
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let accounts = translate_slice::<AccountMeta>(
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memory_mapping,
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ix.accounts.as_ptr() as u64,
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ix.accounts.len() as u64,
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invoke_context.get_check_aligned(),
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invoke_context.get_check_size(),
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)?
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.to_vec();
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2022-07-24 11:20:16 -07:00
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let ix_data_len = ix.data.len() as u64;
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if invoke_context
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.feature_set
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.is_active(&feature_set::loosen_cpi_size_restriction::id())
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{
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invoke_context.get_compute_meter().consume(
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(ix_data_len)
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.saturating_div(invoke_context.get_compute_budget().cpi_bytes_per_unit),
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)?;
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}
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2022-07-16 10:33:57 -07:00
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let data = translate_slice::<u8>(
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memory_mapping,
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ix.data.as_ptr() as u64,
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2022-07-24 11:20:16 -07:00
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ix_data_len,
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2022-07-16 10:33:57 -07:00
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invoke_context.get_check_aligned(),
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invoke_context.get_check_size(),
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)?
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.to_vec();
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Ok(Instruction {
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program_id: ix.program_id,
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accounts,
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data,
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})
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}
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fn translate_accounts<'c>(
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&'c self,
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instruction_accounts: &[InstructionAccount],
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program_indices: &[usize],
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account_infos_addr: u64,
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account_infos_len: u64,
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memory_mapping: &mut MemoryMapping,
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invoke_context: &mut InvokeContext,
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) -> Result<TranslatedAccounts<'c>, EbpfError<BpfError>> {
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let account_infos = translate_slice::<AccountInfo>(
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memory_mapping,
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account_infos_addr,
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account_infos_len,
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invoke_context.get_check_aligned(),
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invoke_context.get_check_size(),
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)?;
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check_account_infos(account_infos.len(), invoke_context)?;
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let account_info_keys = account_infos
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.iter()
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.map(|account_info| {
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translate_type::<Pubkey>(
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memory_mapping,
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account_info.key as *const _ as u64,
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invoke_context.get_check_aligned(),
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)
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})
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.collect::<Result<Vec<_>, EbpfError<BpfError>>>()?;
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let translate = |account_info: &AccountInfo, invoke_context: &InvokeContext| {
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// Translate the account from user space
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let lamports = {
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// Double translate lamports out of RefCell
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let ptr = translate_type::<u64>(
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memory_mapping,
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account_info.lamports.as_ptr() as u64,
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invoke_context.get_check_aligned(),
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)?;
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translate_type_mut::<u64>(memory_mapping, *ptr, invoke_context.get_check_aligned())?
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};
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let owner = translate_type_mut::<Pubkey>(
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memory_mapping,
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account_info.owner as *const _ as u64,
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invoke_context.get_check_aligned(),
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)?;
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2022-07-22 07:10:14 -07:00
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let (data, vm_data_addr, ref_to_len_in_vm) = {
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2022-07-16 10:33:57 -07:00
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// Double translate data out of RefCell
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let data = *translate_type::<&[u8]>(
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memory_mapping,
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account_info.data.as_ptr() as *const _ as u64,
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invoke_context.get_check_aligned(),
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)?;
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invoke_context.get_compute_meter().consume(
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(data.len() as u64)
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.saturating_div(invoke_context.get_compute_budget().cpi_bytes_per_unit),
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)?;
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let translated = translate(
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memory_mapping,
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AccessType::Store,
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(account_info.data.as_ptr() as *const u64 as u64)
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.saturating_add(size_of::<u64>() as u64),
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8,
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)? as *mut u64;
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let ref_to_len_in_vm = unsafe { &mut *translated };
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let vm_data_addr = data.as_ptr() as u64;
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(
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translate_slice_mut::<u8>(
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memory_mapping,
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vm_data_addr,
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data.len() as u64,
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invoke_context.get_check_aligned(),
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invoke_context.get_check_size(),
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)?,
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vm_data_addr,
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ref_to_len_in_vm,
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)
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};
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Ok(CallerAccount {
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lamports,
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owner,
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original_data_len: 0, // set later
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data,
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vm_data_addr,
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ref_to_len_in_vm,
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executable: account_info.executable,
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rent_epoch: account_info.rent_epoch,
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})
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};
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get_translated_accounts(
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instruction_accounts,
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program_indices,
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&account_info_keys,
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account_infos,
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invoke_context,
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translate,
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)
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}
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fn translate_signers(
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&self,
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program_id: &Pubkey,
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signers_seeds_addr: u64,
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signers_seeds_len: u64,
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memory_mapping: &mut MemoryMapping,
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invoke_context: &InvokeContext,
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) -> Result<Vec<Pubkey>, EbpfError<BpfError>> {
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let mut signers = Vec::new();
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if signers_seeds_len > 0 {
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let signers_seeds = translate_slice::<&[&[u8]]>(
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memory_mapping,
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signers_seeds_addr,
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signers_seeds_len,
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invoke_context.get_check_aligned(),
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invoke_context.get_check_size(),
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)?;
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if signers_seeds.len() > MAX_SIGNERS {
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return Err(SyscallError::TooManySigners.into());
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}
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for signer_seeds in signers_seeds.iter() {
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let untranslated_seeds = translate_slice::<&[u8]>(
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memory_mapping,
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signer_seeds.as_ptr() as *const _ as u64,
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signer_seeds.len() as u64,
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invoke_context.get_check_aligned(),
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invoke_context.get_check_size(),
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)?;
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if untranslated_seeds.len() > MAX_SEEDS {
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return Err(SyscallError::InstructionError(
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InstructionError::MaxSeedLengthExceeded,
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)
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.into());
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}
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let seeds = untranslated_seeds
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.iter()
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.map(|untranslated_seed| {
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translate_slice::<u8>(
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memory_mapping,
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untranslated_seed.as_ptr() as *const _ as u64,
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untranslated_seed.len() as u64,
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invoke_context.get_check_aligned(),
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invoke_context.get_check_size(),
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)
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})
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.collect::<Result<Vec<_>, EbpfError<BpfError>>>()?;
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let signer = Pubkey::create_program_address(&seeds, program_id)
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.map_err(SyscallError::BadSeeds)?;
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signers.push(signer);
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}
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Ok(signers)
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} else {
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Ok(vec![])
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}
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}
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}
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/// Rust representation of C's SolInstruction
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#[derive(Debug)]
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#[repr(C)]
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struct SolInstruction {
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program_id_addr: u64,
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accounts_addr: u64,
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accounts_len: u64,
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data_addr: u64,
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data_len: u64,
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}
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/// Rust representation of C's SolAccountMeta
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#[derive(Debug)]
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#[repr(C)]
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struct SolAccountMeta {
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pubkey_addr: u64,
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is_writable: bool,
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is_signer: bool,
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}
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/// Rust representation of C's SolAccountInfo
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#[derive(Debug)]
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#[repr(C)]
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struct SolAccountInfo {
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key_addr: u64,
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lamports_addr: u64,
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data_len: u64,
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data_addr: u64,
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owner_addr: u64,
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rent_epoch: u64,
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#[allow(dead_code)]
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is_signer: bool,
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#[allow(dead_code)]
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is_writable: bool,
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executable: bool,
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}
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/// Rust representation of C's SolSignerSeed
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#[derive(Debug)]
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#[repr(C)]
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struct SolSignerSeedC {
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addr: u64,
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len: u64,
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}
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/// Rust representation of C's SolSignerSeeds
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#[derive(Debug)]
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#[repr(C)]
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struct SolSignerSeedsC {
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addr: u64,
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len: u64,
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}
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declare_syscall!(
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/// Cross-program invocation called from C
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SyscallInvokeSignedC,
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fn call(
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&mut self,
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instruction_addr: u64,
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account_infos_addr: u64,
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account_infos_len: u64,
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signers_seeds_addr: u64,
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signers_seeds_len: u64,
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memory_mapping: &mut MemoryMapping,
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result: &mut Result<u64, EbpfError<BpfError>>,
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) {
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*result = call(
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self,
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instruction_addr,
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account_infos_addr,
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account_infos_len,
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signers_seeds_addr,
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signers_seeds_len,
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memory_mapping,
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);
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}
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);
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impl<'a, 'b> SyscallInvokeSigned<'a, 'b> for SyscallInvokeSignedC<'a, 'b> {
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fn get_context_mut(&self) -> Result<RefMut<&'a mut InvokeContext<'b>>, EbpfError<BpfError>> {
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|
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self.invoke_context
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.try_borrow_mut()
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|
|
.map_err(|_| SyscallError::InvokeContextBorrowFailed.into())
|
|
|
|
}
|
|
|
|
|
|
|
|
fn translate_instruction(
|
|
|
|
&self,
|
|
|
|
addr: u64,
|
|
|
|
memory_mapping: &mut MemoryMapping,
|
|
|
|
invoke_context: &mut InvokeContext,
|
|
|
|
) -> Result<Instruction, EbpfError<BpfError>> {
|
|
|
|
let ix_c = translate_type::<SolInstruction>(
|
|
|
|
memory_mapping,
|
|
|
|
addr,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
)?;
|
|
|
|
|
|
|
|
check_instruction_size(
|
|
|
|
ix_c.accounts_len as usize,
|
|
|
|
ix_c.data_len as usize,
|
|
|
|
invoke_context,
|
|
|
|
)?;
|
|
|
|
let program_id = translate_type::<Pubkey>(
|
|
|
|
memory_mapping,
|
|
|
|
ix_c.program_id_addr,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
)?;
|
|
|
|
let meta_cs = translate_slice::<SolAccountMeta>(
|
|
|
|
memory_mapping,
|
|
|
|
ix_c.accounts_addr,
|
|
|
|
ix_c.accounts_len as u64,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
invoke_context.get_check_size(),
|
|
|
|
)?;
|
2022-07-24 11:20:16 -07:00
|
|
|
|
|
|
|
let ix_data_len = ix_c.data_len as u64;
|
|
|
|
if invoke_context
|
|
|
|
.feature_set
|
|
|
|
.is_active(&feature_set::loosen_cpi_size_restriction::id())
|
|
|
|
{
|
|
|
|
invoke_context.get_compute_meter().consume(
|
|
|
|
(ix_data_len)
|
|
|
|
.saturating_div(invoke_context.get_compute_budget().cpi_bytes_per_unit),
|
|
|
|
)?;
|
|
|
|
}
|
|
|
|
|
2022-07-16 10:33:57 -07:00
|
|
|
let data = translate_slice::<u8>(
|
|
|
|
memory_mapping,
|
|
|
|
ix_c.data_addr,
|
2022-07-24 11:20:16 -07:00
|
|
|
ix_data_len,
|
2022-07-16 10:33:57 -07:00
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
invoke_context.get_check_size(),
|
|
|
|
)?
|
|
|
|
.to_vec();
|
|
|
|
let accounts = meta_cs
|
|
|
|
.iter()
|
|
|
|
.map(|meta_c| {
|
|
|
|
let pubkey = translate_type::<Pubkey>(
|
|
|
|
memory_mapping,
|
|
|
|
meta_c.pubkey_addr,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
)?;
|
|
|
|
Ok(AccountMeta {
|
|
|
|
pubkey: *pubkey,
|
|
|
|
is_signer: meta_c.is_signer,
|
|
|
|
is_writable: meta_c.is_writable,
|
|
|
|
})
|
|
|
|
})
|
|
|
|
.collect::<Result<Vec<AccountMeta>, EbpfError<BpfError>>>()?;
|
|
|
|
|
|
|
|
Ok(Instruction {
|
|
|
|
program_id: *program_id,
|
|
|
|
accounts,
|
|
|
|
data,
|
|
|
|
})
|
|
|
|
}
|
|
|
|
|
|
|
|
fn translate_accounts<'c>(
|
|
|
|
&'c self,
|
|
|
|
instruction_accounts: &[InstructionAccount],
|
|
|
|
program_indices: &[usize],
|
|
|
|
account_infos_addr: u64,
|
|
|
|
account_infos_len: u64,
|
|
|
|
memory_mapping: &mut MemoryMapping,
|
|
|
|
invoke_context: &mut InvokeContext,
|
|
|
|
) -> Result<TranslatedAccounts<'c>, EbpfError<BpfError>> {
|
|
|
|
let account_infos = translate_slice::<SolAccountInfo>(
|
|
|
|
memory_mapping,
|
|
|
|
account_infos_addr,
|
|
|
|
account_infos_len,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
invoke_context.get_check_size(),
|
|
|
|
)?;
|
|
|
|
check_account_infos(account_infos.len(), invoke_context)?;
|
|
|
|
let account_info_keys = account_infos
|
|
|
|
.iter()
|
|
|
|
.map(|account_info| {
|
|
|
|
translate_type::<Pubkey>(
|
|
|
|
memory_mapping,
|
|
|
|
account_info.key_addr,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
)
|
|
|
|
})
|
|
|
|
.collect::<Result<Vec<_>, EbpfError<BpfError>>>()?;
|
|
|
|
|
|
|
|
let translate = |account_info: &SolAccountInfo, invoke_context: &InvokeContext| {
|
|
|
|
// Translate the account from user space
|
|
|
|
|
|
|
|
let lamports = translate_type_mut::<u64>(
|
|
|
|
memory_mapping,
|
|
|
|
account_info.lamports_addr,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
)?;
|
|
|
|
let owner = translate_type_mut::<Pubkey>(
|
|
|
|
memory_mapping,
|
|
|
|
account_info.owner_addr,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
)?;
|
|
|
|
let vm_data_addr = account_info.data_addr;
|
|
|
|
|
|
|
|
invoke_context.get_compute_meter().consume(
|
|
|
|
account_info
|
|
|
|
.data_len
|
|
|
|
.saturating_div(invoke_context.get_compute_budget().cpi_bytes_per_unit),
|
|
|
|
)?;
|
|
|
|
|
|
|
|
let data = translate_slice_mut::<u8>(
|
|
|
|
memory_mapping,
|
|
|
|
vm_data_addr,
|
|
|
|
account_info.data_len,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
invoke_context.get_check_size(),
|
|
|
|
)?;
|
|
|
|
|
|
|
|
let first_info_addr = account_infos.first().ok_or(SyscallError::InstructionError(
|
|
|
|
InstructionError::InvalidArgument,
|
|
|
|
))? as *const _ as u64;
|
|
|
|
let addr = &account_info.data_len as *const u64 as u64;
|
|
|
|
let vm_addr = if invoke_context
|
|
|
|
.feature_set
|
|
|
|
.is_active(&syscall_saturated_math::id())
|
|
|
|
{
|
|
|
|
account_infos_addr.saturating_add(addr.saturating_sub(first_info_addr))
|
|
|
|
} else {
|
|
|
|
#[allow(clippy::integer_arithmetic)]
|
|
|
|
{
|
|
|
|
account_infos_addr + (addr - first_info_addr)
|
|
|
|
}
|
|
|
|
};
|
|
|
|
let _ = translate(
|
|
|
|
memory_mapping,
|
|
|
|
AccessType::Store,
|
|
|
|
vm_addr,
|
|
|
|
size_of::<u64>() as u64,
|
|
|
|
)?;
|
|
|
|
let ref_to_len_in_vm = unsafe { &mut *(addr as *mut u64) };
|
|
|
|
|
|
|
|
Ok(CallerAccount {
|
|
|
|
lamports,
|
|
|
|
owner,
|
|
|
|
original_data_len: 0, // set later
|
|
|
|
data,
|
|
|
|
vm_data_addr,
|
|
|
|
ref_to_len_in_vm,
|
|
|
|
executable: account_info.executable,
|
|
|
|
rent_epoch: account_info.rent_epoch,
|
|
|
|
})
|
|
|
|
};
|
|
|
|
|
|
|
|
get_translated_accounts(
|
|
|
|
instruction_accounts,
|
|
|
|
program_indices,
|
|
|
|
&account_info_keys,
|
|
|
|
account_infos,
|
|
|
|
invoke_context,
|
|
|
|
translate,
|
|
|
|
)
|
|
|
|
}
|
|
|
|
|
|
|
|
fn translate_signers(
|
|
|
|
&self,
|
|
|
|
program_id: &Pubkey,
|
|
|
|
signers_seeds_addr: u64,
|
|
|
|
signers_seeds_len: u64,
|
|
|
|
memory_mapping: &mut MemoryMapping,
|
|
|
|
invoke_context: &InvokeContext,
|
|
|
|
) -> Result<Vec<Pubkey>, EbpfError<BpfError>> {
|
|
|
|
if signers_seeds_len > 0 {
|
|
|
|
let signers_seeds = translate_slice::<SolSignerSeedsC>(
|
|
|
|
memory_mapping,
|
|
|
|
signers_seeds_addr,
|
|
|
|
signers_seeds_len,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
invoke_context.get_check_size(),
|
|
|
|
)?;
|
|
|
|
if signers_seeds.len() > MAX_SIGNERS {
|
|
|
|
return Err(SyscallError::TooManySigners.into());
|
|
|
|
}
|
|
|
|
Ok(signers_seeds
|
|
|
|
.iter()
|
|
|
|
.map(|signer_seeds| {
|
|
|
|
let seeds = translate_slice::<SolSignerSeedC>(
|
|
|
|
memory_mapping,
|
|
|
|
signer_seeds.addr,
|
|
|
|
signer_seeds.len,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
invoke_context.get_check_size(),
|
|
|
|
)?;
|
|
|
|
if seeds.len() > MAX_SEEDS {
|
|
|
|
return Err(SyscallError::InstructionError(
|
|
|
|
InstructionError::MaxSeedLengthExceeded,
|
|
|
|
)
|
|
|
|
.into());
|
|
|
|
}
|
|
|
|
let seeds_bytes = seeds
|
|
|
|
.iter()
|
|
|
|
.map(|seed| {
|
|
|
|
translate_slice::<u8>(
|
|
|
|
memory_mapping,
|
|
|
|
seed.addr,
|
|
|
|
seed.len,
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
invoke_context.get_check_size(),
|
|
|
|
)
|
|
|
|
})
|
|
|
|
.collect::<Result<Vec<_>, EbpfError<BpfError>>>()?;
|
|
|
|
Pubkey::create_program_address(&seeds_bytes, program_id)
|
|
|
|
.map_err(|err| SyscallError::BadSeeds(err).into())
|
|
|
|
})
|
|
|
|
.collect::<Result<Vec<_>, EbpfError<BpfError>>>()?)
|
|
|
|
} else {
|
|
|
|
Ok(vec![])
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
fn get_translated_accounts<'a, T, F>(
|
|
|
|
instruction_accounts: &[InstructionAccount],
|
|
|
|
program_indices: &[usize],
|
|
|
|
account_info_keys: &[&Pubkey],
|
|
|
|
account_infos: &[T],
|
|
|
|
invoke_context: &mut InvokeContext,
|
|
|
|
do_translate: F,
|
|
|
|
) -> Result<TranslatedAccounts<'a>, EbpfError<BpfError>>
|
|
|
|
where
|
|
|
|
F: Fn(&T, &InvokeContext) -> Result<CallerAccount<'a>, EbpfError<BpfError>>,
|
|
|
|
{
|
|
|
|
let transaction_context = &invoke_context.transaction_context;
|
|
|
|
let instruction_context = transaction_context
|
|
|
|
.get_current_instruction_context()
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
let mut accounts = Vec::with_capacity(instruction_accounts.len().saturating_add(1));
|
2022-08-09 15:22:23 -07:00
|
|
|
let is_disable_cpi_setting_executable_and_rent_epoch_active = invoke_context
|
|
|
|
.feature_set
|
|
|
|
.is_active(&disable_cpi_setting_executable_and_rent_epoch::id());
|
2022-07-16 10:33:57 -07:00
|
|
|
|
|
|
|
let program_account_index = program_indices
|
|
|
|
.last()
|
|
|
|
.ok_or(SyscallError::InstructionError(
|
|
|
|
InstructionError::MissingAccount,
|
|
|
|
))?;
|
|
|
|
accounts.push((*program_account_index, None));
|
|
|
|
|
|
|
|
for (instruction_account_index, instruction_account) in instruction_accounts.iter().enumerate()
|
|
|
|
{
|
|
|
|
if instruction_account_index != instruction_account.index_in_callee {
|
|
|
|
continue; // Skip duplicate account
|
|
|
|
}
|
|
|
|
let mut callee_account = instruction_context
|
|
|
|
.try_borrow_instruction_account(
|
|
|
|
transaction_context,
|
|
|
|
instruction_account.index_in_caller,
|
|
|
|
)
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
let account_key = invoke_context
|
|
|
|
.transaction_context
|
|
|
|
.get_key_of_account_at_index(instruction_account.index_in_transaction)
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
if callee_account.is_executable() {
|
|
|
|
// Use the known account
|
|
|
|
invoke_context.get_compute_meter().consume(
|
|
|
|
(callee_account.get_data().len() as u64)
|
|
|
|
.saturating_div(invoke_context.get_compute_budget().cpi_bytes_per_unit),
|
|
|
|
)?;
|
|
|
|
|
|
|
|
accounts.push((instruction_account.index_in_caller, None));
|
|
|
|
} else if let Some(caller_account_index) =
|
|
|
|
account_info_keys.iter().position(|key| *key == account_key)
|
|
|
|
{
|
|
|
|
let mut caller_account = do_translate(
|
|
|
|
account_infos
|
|
|
|
.get(caller_account_index)
|
|
|
|
.ok_or(SyscallError::InvalidLength)?,
|
|
|
|
invoke_context,
|
|
|
|
)?;
|
|
|
|
{
|
|
|
|
if callee_account.get_lamports() != *caller_account.lamports {
|
|
|
|
callee_account
|
|
|
|
.set_lamports(*caller_account.lamports)
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
}
|
|
|
|
// The redundant check helps to avoid the expensive data comparison if we can
|
|
|
|
match callee_account
|
|
|
|
.can_data_be_resized(caller_account.data.len())
|
|
|
|
.and_then(|_| callee_account.can_data_be_changed())
|
|
|
|
{
|
|
|
|
Ok(()) => callee_account
|
|
|
|
.set_data(caller_account.data)
|
|
|
|
.map_err(SyscallError::InstructionError)?,
|
|
|
|
Err(err) if callee_account.get_data() != caller_account.data => {
|
|
|
|
return Err(EbpfError::UserError(BpfError::SyscallError(
|
|
|
|
SyscallError::InstructionError(err),
|
|
|
|
)));
|
|
|
|
}
|
|
|
|
_ => {}
|
|
|
|
}
|
2022-08-09 15:22:23 -07:00
|
|
|
if !is_disable_cpi_setting_executable_and_rent_epoch_active
|
|
|
|
&& callee_account.is_executable() != caller_account.executable
|
|
|
|
{
|
2022-07-16 10:33:57 -07:00
|
|
|
callee_account
|
|
|
|
.set_executable(caller_account.executable)
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
}
|
|
|
|
// Change the owner at the end so that we are allowed to change the lamports and data before
|
|
|
|
if callee_account.get_owner() != caller_account.owner {
|
|
|
|
callee_account
|
|
|
|
.set_owner(caller_account.owner.as_ref())
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
}
|
|
|
|
drop(callee_account);
|
|
|
|
let callee_account = invoke_context
|
|
|
|
.transaction_context
|
|
|
|
.get_account_at_index(instruction_account.index_in_transaction)
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
2022-08-09 15:22:23 -07:00
|
|
|
if !is_disable_cpi_setting_executable_and_rent_epoch_active
|
|
|
|
&& callee_account.borrow().rent_epoch() != caller_account.rent_epoch
|
|
|
|
{
|
2022-07-16 10:33:57 -07:00
|
|
|
if invoke_context
|
|
|
|
.feature_set
|
|
|
|
.is_active(&enable_early_verification_of_account_modifications::id())
|
|
|
|
{
|
2022-07-17 03:23:03 -07:00
|
|
|
return Err(SyscallError::InstructionError(
|
2022-07-16 10:33:57 -07:00
|
|
|
InstructionError::RentEpochModified,
|
2022-07-17 03:23:03 -07:00
|
|
|
)
|
|
|
|
.into());
|
2022-07-16 10:33:57 -07:00
|
|
|
} else {
|
|
|
|
callee_account
|
|
|
|
.borrow_mut()
|
|
|
|
.set_rent_epoch(caller_account.rent_epoch);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
let caller_account = if instruction_account.is_writable {
|
|
|
|
let orig_data_lens = invoke_context
|
|
|
|
.get_orig_account_lengths()
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
caller_account.original_data_len = *orig_data_lens
|
|
|
|
.get(instruction_account.index_in_caller)
|
|
|
|
.ok_or_else(|| {
|
|
|
|
ic_msg!(
|
|
|
|
invoke_context,
|
|
|
|
"Internal error: index mismatch for account {}",
|
|
|
|
account_key
|
|
|
|
);
|
|
|
|
SyscallError::InstructionError(InstructionError::MissingAccount)
|
|
|
|
})?;
|
|
|
|
Some(caller_account)
|
|
|
|
} else {
|
|
|
|
None
|
|
|
|
};
|
|
|
|
accounts.push((instruction_account.index_in_caller, caller_account));
|
|
|
|
} else {
|
|
|
|
ic_msg!(
|
|
|
|
invoke_context,
|
|
|
|
"Instruction references an unknown account {}",
|
|
|
|
account_key
|
|
|
|
);
|
|
|
|
return Err(SyscallError::InstructionError(InstructionError::MissingAccount).into());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
Ok(accounts)
|
|
|
|
}
|
|
|
|
|
|
|
|
fn check_instruction_size(
|
|
|
|
num_accounts: usize,
|
|
|
|
data_len: usize,
|
|
|
|
invoke_context: &mut InvokeContext,
|
|
|
|
) -> Result<(), EbpfError<BpfError>> {
|
2022-07-24 11:20:16 -07:00
|
|
|
if invoke_context
|
|
|
|
.feature_set
|
|
|
|
.is_active(&feature_set::loosen_cpi_size_restriction::id())
|
|
|
|
{
|
|
|
|
let data_len = data_len as u64;
|
|
|
|
let max_data_len = MAX_CPI_INSTRUCTION_DATA_LEN;
|
|
|
|
if data_len > max_data_len {
|
|
|
|
return Err(SyscallError::MaxInstructionDataLenExceeded {
|
|
|
|
data_len,
|
|
|
|
max_data_len,
|
|
|
|
}
|
|
|
|
.into());
|
|
|
|
}
|
|
|
|
|
|
|
|
let num_accounts = num_accounts as u64;
|
|
|
|
let max_accounts = MAX_CPI_INSTRUCTION_ACCOUNTS as u64;
|
|
|
|
if num_accounts > max_accounts {
|
|
|
|
return Err(SyscallError::MaxInstructionAccountsExceeded {
|
|
|
|
num_accounts,
|
|
|
|
max_accounts,
|
|
|
|
}
|
|
|
|
.into());
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
let max_size = invoke_context.get_compute_budget().max_cpi_instruction_size;
|
|
|
|
let size = num_accounts
|
|
|
|
.saturating_mul(size_of::<AccountMeta>())
|
|
|
|
.saturating_add(data_len);
|
|
|
|
if size > max_size {
|
|
|
|
return Err(SyscallError::InstructionTooLarge(size, max_size).into());
|
|
|
|
}
|
2022-07-16 10:33:57 -07:00
|
|
|
}
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
|
|
|
fn check_account_infos(
|
2022-07-24 11:20:16 -07:00
|
|
|
num_account_infos: usize,
|
2022-07-16 10:33:57 -07:00
|
|
|
invoke_context: &mut InvokeContext,
|
|
|
|
) -> Result<(), EbpfError<BpfError>> {
|
2022-07-24 11:20:16 -07:00
|
|
|
if invoke_context
|
2022-07-16 10:33:57 -07:00
|
|
|
.feature_set
|
2022-07-24 11:20:16 -07:00
|
|
|
.is_active(&feature_set::loosen_cpi_size_restriction::id())
|
2022-07-16 10:33:57 -07:00
|
|
|
{
|
2022-07-24 11:20:16 -07:00
|
|
|
let num_account_infos = num_account_infos as u64;
|
|
|
|
let max_account_infos = MAX_CPI_ACCOUNT_INFOS as u64;
|
|
|
|
if num_account_infos > max_account_infos {
|
|
|
|
return Err(SyscallError::MaxInstructionAccountInfosExceeded {
|
|
|
|
num_account_infos,
|
|
|
|
max_account_infos,
|
|
|
|
}
|
|
|
|
.into());
|
|
|
|
}
|
2022-07-16 10:33:57 -07:00
|
|
|
} else {
|
2022-07-24 11:20:16 -07:00
|
|
|
let adjusted_len = if invoke_context
|
|
|
|
.feature_set
|
|
|
|
.is_active(&syscall_saturated_math::id())
|
2022-07-16 10:33:57 -07:00
|
|
|
{
|
2022-07-24 11:20:16 -07:00
|
|
|
num_account_infos.saturating_mul(size_of::<Pubkey>())
|
|
|
|
} else {
|
|
|
|
#[allow(clippy::integer_arithmetic)]
|
|
|
|
{
|
|
|
|
num_account_infos * size_of::<Pubkey>()
|
|
|
|
}
|
|
|
|
};
|
|
|
|
if adjusted_len > invoke_context.get_compute_budget().max_cpi_instruction_size {
|
|
|
|
// Cap the number of account_infos a caller can pass to approximate
|
|
|
|
// maximum that accounts that could be passed in an instruction
|
|
|
|
return Err(SyscallError::TooManyAccounts.into());
|
|
|
|
};
|
|
|
|
}
|
2022-07-16 10:33:57 -07:00
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
|
|
|
fn check_authorized_program(
|
|
|
|
program_id: &Pubkey,
|
|
|
|
instruction_data: &[u8],
|
|
|
|
invoke_context: &InvokeContext,
|
|
|
|
) -> Result<(), EbpfError<BpfError>> {
|
|
|
|
#[allow(clippy::blocks_in_if_conditions)]
|
|
|
|
if native_loader::check_id(program_id)
|
|
|
|
|| bpf_loader::check_id(program_id)
|
|
|
|
|| bpf_loader_deprecated::check_id(program_id)
|
|
|
|
|| (bpf_loader_upgradeable::check_id(program_id)
|
|
|
|
&& !(bpf_loader_upgradeable::is_upgrade_instruction(instruction_data)
|
|
|
|
|| bpf_loader_upgradeable::is_set_authority_instruction(instruction_data)
|
|
|
|
|| bpf_loader_upgradeable::is_close_instruction(instruction_data)))
|
|
|
|
|| (invoke_context
|
|
|
|
.feature_set
|
|
|
|
.is_active(&prevent_calling_precompiles_as_programs::id())
|
|
|
|
&& is_precompile(program_id, |feature_id: &Pubkey| {
|
|
|
|
invoke_context.feature_set.is_active(feature_id)
|
|
|
|
}))
|
|
|
|
{
|
|
|
|
return Err(SyscallError::ProgramNotSupported(*program_id).into());
|
|
|
|
}
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
|
|
|
/// Call process instruction, common to both Rust and C
|
|
|
|
fn call<'a, 'b: 'a>(
|
|
|
|
syscall: &mut dyn SyscallInvokeSigned<'a, 'b>,
|
|
|
|
instruction_addr: u64,
|
|
|
|
account_infos_addr: u64,
|
|
|
|
account_infos_len: u64,
|
|
|
|
signers_seeds_addr: u64,
|
|
|
|
signers_seeds_len: u64,
|
|
|
|
memory_mapping: &mut MemoryMapping,
|
|
|
|
) -> Result<u64, EbpfError<BpfError>> {
|
|
|
|
let mut invoke_context = syscall.get_context_mut()?;
|
|
|
|
invoke_context
|
|
|
|
.get_compute_meter()
|
|
|
|
.consume(invoke_context.get_compute_budget().invoke_units)?;
|
|
|
|
|
|
|
|
// Translate and verify caller's data
|
|
|
|
let instruction =
|
|
|
|
syscall.translate_instruction(instruction_addr, memory_mapping, *invoke_context)?;
|
|
|
|
let transaction_context = &invoke_context.transaction_context;
|
|
|
|
let instruction_context = transaction_context
|
|
|
|
.get_current_instruction_context()
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
let caller_program_id = instruction_context
|
|
|
|
.get_last_program_key(transaction_context)
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
let signers = syscall.translate_signers(
|
|
|
|
caller_program_id,
|
|
|
|
signers_seeds_addr,
|
|
|
|
signers_seeds_len,
|
|
|
|
memory_mapping,
|
|
|
|
*invoke_context,
|
|
|
|
)?;
|
|
|
|
let (instruction_accounts, program_indices) = invoke_context
|
|
|
|
.prepare_instruction(&instruction, &signers)
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
check_authorized_program(&instruction.program_id, &instruction.data, *invoke_context)?;
|
|
|
|
let mut accounts = syscall.translate_accounts(
|
|
|
|
&instruction_accounts,
|
|
|
|
&program_indices,
|
|
|
|
account_infos_addr,
|
|
|
|
account_infos_len,
|
|
|
|
memory_mapping,
|
|
|
|
*invoke_context,
|
|
|
|
)?;
|
|
|
|
|
|
|
|
// Process instruction
|
|
|
|
let mut compute_units_consumed = 0;
|
|
|
|
invoke_context
|
|
|
|
.process_instruction(
|
|
|
|
&instruction.data,
|
|
|
|
&instruction_accounts,
|
|
|
|
&program_indices,
|
|
|
|
&mut compute_units_consumed,
|
|
|
|
&mut ExecuteTimings::default(),
|
|
|
|
)
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
|
|
|
|
// Copy results back to caller
|
|
|
|
let transaction_context = &invoke_context.transaction_context;
|
|
|
|
let instruction_context = transaction_context
|
|
|
|
.get_current_instruction_context()
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
for (index_in_caller, caller_account) in accounts.iter_mut() {
|
|
|
|
if let Some(caller_account) = caller_account {
|
|
|
|
let callee_account = instruction_context
|
|
|
|
.try_borrow_instruction_account(transaction_context, *index_in_caller)
|
|
|
|
.map_err(SyscallError::InstructionError)?;
|
|
|
|
*caller_account.lamports = callee_account.get_lamports();
|
|
|
|
*caller_account.owner = *callee_account.get_owner();
|
|
|
|
let new_len = callee_account.get_data().len();
|
|
|
|
if caller_account.data.len() != new_len {
|
|
|
|
let data_overflow = if invoke_context
|
|
|
|
.feature_set
|
|
|
|
.is_active(&syscall_saturated_math::id())
|
|
|
|
{
|
|
|
|
new_len
|
|
|
|
> caller_account
|
|
|
|
.original_data_len
|
|
|
|
.saturating_add(MAX_PERMITTED_DATA_INCREASE)
|
|
|
|
} else {
|
|
|
|
#[allow(clippy::integer_arithmetic)]
|
|
|
|
{
|
|
|
|
new_len > caller_account.original_data_len + MAX_PERMITTED_DATA_INCREASE
|
|
|
|
}
|
|
|
|
};
|
|
|
|
if data_overflow {
|
|
|
|
ic_msg!(
|
|
|
|
invoke_context,
|
|
|
|
"Account data size realloc limited to {} in inner instructions",
|
|
|
|
MAX_PERMITTED_DATA_INCREASE
|
|
|
|
);
|
|
|
|
return Err(
|
|
|
|
SyscallError::InstructionError(InstructionError::InvalidRealloc).into(),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
if new_len < caller_account.data.len() {
|
|
|
|
caller_account
|
|
|
|
.data
|
|
|
|
.get_mut(new_len..)
|
|
|
|
.ok_or(SyscallError::InstructionError(
|
|
|
|
InstructionError::AccountDataTooSmall,
|
|
|
|
))?
|
|
|
|
.fill(0);
|
|
|
|
}
|
|
|
|
caller_account.data = translate_slice_mut::<u8>(
|
|
|
|
memory_mapping,
|
|
|
|
caller_account.vm_data_addr,
|
|
|
|
new_len as u64,
|
|
|
|
false, // Don't care since it is byte aligned
|
|
|
|
invoke_context.get_check_size(),
|
|
|
|
)?;
|
|
|
|
*caller_account.ref_to_len_in_vm = new_len as u64;
|
2022-07-22 07:10:14 -07:00
|
|
|
let serialized_len_ptr = translate_type_mut::<u64>(
|
|
|
|
memory_mapping,
|
|
|
|
caller_account
|
|
|
|
.vm_data_addr
|
|
|
|
.saturating_sub(std::mem::size_of::<u64>() as u64),
|
|
|
|
invoke_context.get_check_aligned(),
|
|
|
|
)?;
|
|
|
|
*serialized_len_ptr = new_len as u64;
|
2022-07-16 10:33:57 -07:00
|
|
|
}
|
|
|
|
let to_slice = &mut caller_account.data;
|
|
|
|
let from_slice = callee_account
|
|
|
|
.get_data()
|
|
|
|
.get(0..new_len)
|
|
|
|
.ok_or(SyscallError::InvalidLength)?;
|
|
|
|
if to_slice.len() != from_slice.len() {
|
|
|
|
return Err(
|
|
|
|
SyscallError::InstructionError(InstructionError::AccountDataTooSmall).into(),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
to_slice.copy_from_slice(from_slice);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
Ok(SUCCESS)
|
|
|
|
}
|