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solana/programs/bpf_loader/src/syscalls/mod.rs

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Rust
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pub use self::{
cpi::{SyscallInvokeSignedC, SyscallInvokeSignedRust},
logging::{
SyscallLog, SyscallLogBpfComputeUnits, SyscallLogData, SyscallLogPubkey, SyscallLogU64,
},
mem_ops::{SyscallMemcmp, SyscallMemcpy, SyscallMemmove, SyscallMemset},
sysvar::{
SyscallGetClockSysvar, SyscallGetEpochRewardsSysvar, SyscallGetEpochScheduleSysvar,
SyscallGetFeesSysvar, SyscallGetLastRestartSlotSysvar, SyscallGetRentSysvar,
},
};
#[allow(deprecated)]
use {
solana_program_runtime::{
compute_budget::ComputeBudget, ic_logger_msg, ic_msg, invoke_context::InvokeContext,
stable_log, timings::ExecuteTimings,
},
solana_rbpf::{
declare_builtin_function,
memory_region::{AccessType, MemoryMapping},
program::{BuiltinFunction, BuiltinProgram, FunctionRegistry},
vm::Config,
},
solana_sdk::{
account_info::AccountInfo,
alt_bn128::prelude::{
alt_bn128_addition, alt_bn128_multiplication, alt_bn128_pairing, AltBn128Error,
ALT_BN128_ADDITION_OUTPUT_LEN, ALT_BN128_MULTIPLICATION_OUTPUT_LEN,
ALT_BN128_PAIRING_ELEMENT_LEN, ALT_BN128_PAIRING_OUTPUT_LEN,
},
big_mod_exp::{big_mod_exp, BigModExpParams},
blake3, bpf_loader, bpf_loader_deprecated, bpf_loader_upgradeable,
entrypoint::{BPF_ALIGN_OF_U128, MAX_PERMITTED_DATA_INCREASE, SUCCESS},
feature_set::bpf_account_data_direct_mapping,
feature_set::FeatureSet,
feature_set::{
self, blake3_syscall_enabled, curve25519_syscall_enabled,
disable_deploy_of_alloc_free_syscall, disable_fees_sysvar,
enable_alt_bn128_compression_syscall, enable_alt_bn128_syscall,
enable_big_mod_exp_syscall, enable_partitioned_epoch_reward, enable_poseidon_syscall,
error_on_syscall_bpf_function_hash_collisions, last_restart_slot_sysvar,
reject_callx_r10, remaining_compute_units_syscall_enabled,
stop_sibling_instruction_search_at_parent, stop_truncating_strings_in_syscalls,
switch_to_new_elf_parser,
},
hash::{Hash, Hasher},
instruction::{
AccountMeta, InstructionError, ProcessedSiblingInstruction,
TRANSACTION_LEVEL_STACK_HEIGHT,
},
keccak, native_loader, poseidon,
precompiles::is_precompile,
program::MAX_RETURN_DATA,
program_stubs::is_nonoverlapping,
pubkey::{Pubkey, PubkeyError, MAX_SEEDS, MAX_SEED_LEN},
secp256k1_recover::{
Secp256k1RecoverError, SECP256K1_PUBLIC_KEY_LENGTH, SECP256K1_SIGNATURE_LENGTH,
},
sysvar::{Sysvar, SysvarId},
transaction_context::{IndexOfAccount, InstructionAccount},
},
std::{
alloc::Layout,
mem::{align_of, size_of},
slice::from_raw_parts_mut,
str::{from_utf8, Utf8Error},
sync::Arc,
},
thiserror::Error as ThisError,
};
mod cpi;
mod logging;
mod mem_ops;
mod sysvar;
/// Maximum signers
pub const MAX_SIGNERS: usize = 16;
/// Error definitions
#[derive(Debug, ThisError, PartialEq, Eq)]
pub enum SyscallError {
#[error("{0}: {1:?}")]
InvalidString(Utf8Error, Vec<u8>),
#[error("SBF program panicked")]
Abort,
#[error("SBF program Panicked in {0} at {1}:{2}")]
Panic(String, u64, u64),
#[error("Cannot borrow invoke context")]
InvokeContextBorrowFailed,
#[error("Malformed signer seed: {0}: {1:?}")]
MalformedSignerSeed(Utf8Error, Vec<u8>),
#[error("Could not create program address with signer seeds: {0}")]
BadSeeds(PubkeyError),
#[error("Program {0} not supported by inner instructions")]
ProgramNotSupported(Pubkey),
#[error("Unaligned pointer")]
UnalignedPointer,
#[error("Too many signers")]
TooManySigners,
#[error("Instruction passed to inner instruction is too large ({0} > {1})")]
InstructionTooLarge(usize, usize),
#[error("Too many accounts passed to inner instruction")]
TooManyAccounts,
#[error("Overlapping copy")]
CopyOverlapping,
#[error("Return data too large ({0} > {1})")]
ReturnDataTooLarge(u64, u64),
#[error("Hashing too many sequences")]
TooManySlices,
#[error("InvalidLength")]
InvalidLength,
#[error("Invoked an instruction with data that is too large ({data_len} > {max_data_len})")]
MaxInstructionDataLenExceeded { data_len: u64, max_data_len: u64 },
#[error("Invoked an instruction with too many accounts ({num_accounts} > {max_accounts})")]
MaxInstructionAccountsExceeded {
num_accounts: u64,
max_accounts: u64,
},
#[error("Invoked an instruction with too many account info's ({num_account_infos} > {max_account_infos})")]
MaxInstructionAccountInfosExceeded {
num_account_infos: u64,
max_account_infos: u64,
},
#[error("InvalidAttribute")]
InvalidAttribute,
#[error("Invalid pointer")]
InvalidPointer,
#[error("Arithmetic overflow")]
ArithmeticOverflow,
}
type Error = Box<dyn std::error::Error>;
pub trait HasherImpl {
const NAME: &'static str;
type Output: AsRef<[u8]>;
fn create_hasher() -> Self;
fn hash(&mut self, val: &[u8]);
fn result(self) -> Self::Output;
fn get_base_cost(compute_budget: &ComputeBudget) -> u64;
fn get_byte_cost(compute_budget: &ComputeBudget) -> u64;
fn get_max_slices(compute_budget: &ComputeBudget) -> u64;
}
pub struct Sha256Hasher(Hasher);
pub struct Blake3Hasher(blake3::Hasher);
pub struct Keccak256Hasher(keccak::Hasher);
impl HasherImpl for Sha256Hasher {
const NAME: &'static str = "Sha256";
type Output = Hash;
fn create_hasher() -> Self {
Sha256Hasher(Hasher::default())
}
fn hash(&mut self, val: &[u8]) {
self.0.hash(val);
}
fn result(self) -> Self::Output {
self.0.result()
}
fn get_base_cost(compute_budget: &ComputeBudget) -> u64 {
compute_budget.sha256_base_cost
}
fn get_byte_cost(compute_budget: &ComputeBudget) -> u64 {
compute_budget.sha256_byte_cost
}
fn get_max_slices(compute_budget: &ComputeBudget) -> u64 {
compute_budget.sha256_max_slices
}
}
impl HasherImpl for Blake3Hasher {
const NAME: &'static str = "Blake3";
type Output = blake3::Hash;
fn create_hasher() -> Self {
Blake3Hasher(blake3::Hasher::default())
}
fn hash(&mut self, val: &[u8]) {
self.0.hash(val);
}
fn result(self) -> Self::Output {
self.0.result()
}
fn get_base_cost(compute_budget: &ComputeBudget) -> u64 {
compute_budget.sha256_base_cost
}
fn get_byte_cost(compute_budget: &ComputeBudget) -> u64 {
compute_budget.sha256_byte_cost
}
fn get_max_slices(compute_budget: &ComputeBudget) -> u64 {
compute_budget.sha256_max_slices
}
}
impl HasherImpl for Keccak256Hasher {
const NAME: &'static str = "Keccak256";
type Output = keccak::Hash;
fn create_hasher() -> Self {
Keccak256Hasher(keccak::Hasher::default())
}
fn hash(&mut self, val: &[u8]) {
self.0.hash(val);
}
fn result(self) -> Self::Output {
self.0.result()
}
fn get_base_cost(compute_budget: &ComputeBudget) -> u64 {
compute_budget.sha256_base_cost
}
fn get_byte_cost(compute_budget: &ComputeBudget) -> u64 {
compute_budget.sha256_byte_cost
}
fn get_max_slices(compute_budget: &ComputeBudget) -> u64 {
compute_budget.sha256_max_slices
}
}
fn consume_compute_meter(invoke_context: &InvokeContext, amount: u64) -> Result<(), Error> {
invoke_context.consume_checked(amount)?;
Ok(())
}
macro_rules! register_feature_gated_function {
($result:expr, $is_feature_active:expr, $name:expr, $call:expr $(,)?) => {
if $is_feature_active {
$result.register_function_hashed($name, $call)
} else {
Ok(0)
}
};
}
pub fn create_program_runtime_environment_v1<'a>(
feature_set: &FeatureSet,
compute_budget: &ComputeBudget,
reject_deployment_of_broken_elfs: bool,
debugging_features: bool,
) -> Result<BuiltinProgram<InvokeContext<'a>>, Error> {
let enable_alt_bn128_syscall = feature_set.is_active(&enable_alt_bn128_syscall::id());
let enable_alt_bn128_compression_syscall =
feature_set.is_active(&enable_alt_bn128_compression_syscall::id());
let enable_big_mod_exp_syscall = feature_set.is_active(&enable_big_mod_exp_syscall::id());
let blake3_syscall_enabled = feature_set.is_active(&blake3_syscall_enabled::id());
let curve25519_syscall_enabled = feature_set.is_active(&curve25519_syscall_enabled::id());
let disable_fees_sysvar = feature_set.is_active(&disable_fees_sysvar::id());
let epoch_rewards_syscall_enabled =
feature_set.is_active(&enable_partitioned_epoch_reward::id());
let disable_deploy_of_alloc_free_syscall = reject_deployment_of_broken_elfs
&& feature_set.is_active(&disable_deploy_of_alloc_free_syscall::id());
let last_restart_slot_syscall_enabled = feature_set.is_active(&last_restart_slot_sysvar::id());
let enable_poseidon_syscall = feature_set.is_active(&enable_poseidon_syscall::id());
let remaining_compute_units_syscall_enabled =
feature_set.is_active(&remaining_compute_units_syscall_enabled::id());
// !!! ATTENTION !!!
// When adding new features for RBPF here,
// also add them to `Bank::apply_builtin_program_feature_transitions()`.
let config = Config {
max_call_depth: compute_budget.max_call_depth,
stack_frame_size: compute_budget.stack_frame_size,
enable_address_translation: true,
enable_stack_frame_gaps: !feature_set.is_active(&bpf_account_data_direct_mapping::id()),
instruction_meter_checkpoint_distance: 10000,
enable_instruction_meter: true,
enable_instruction_tracing: debugging_features,
enable_symbol_and_section_labels: debugging_features,
reject_broken_elfs: reject_deployment_of_broken_elfs,
noop_instruction_rate: 256,
sanitize_user_provided_values: true,
external_internal_function_hash_collision: feature_set
.is_active(&error_on_syscall_bpf_function_hash_collisions::id()),
reject_callx_r10: feature_set.is_active(&reject_callx_r10::id()),
enable_sbpf_v1: true,
enable_sbpf_v2: false,
optimize_rodata: false,
new_elf_parser: feature_set.is_active(&switch_to_new_elf_parser::id()),
aligned_memory_mapping: !feature_set.is_active(&bpf_account_data_direct_mapping::id()),
// Warning, do not use `Config::default()` so that configuration here is explicit.
};
let mut result = FunctionRegistry::<BuiltinFunction<InvokeContext>>::default();
// Abort
result.register_function_hashed(*b"abort", SyscallAbort::vm)?;
// Panic
result.register_function_hashed(*b"sol_panic_", SyscallPanic::vm)?;
// Logging
result.register_function_hashed(*b"sol_log_", SyscallLog::vm)?;
result.register_function_hashed(*b"sol_log_64_", SyscallLogU64::vm)?;
result.register_function_hashed(*b"sol_log_compute_units_", SyscallLogBpfComputeUnits::vm)?;
result.register_function_hashed(*b"sol_log_pubkey", SyscallLogPubkey::vm)?;
// Program defined addresses (PDA)
result.register_function_hashed(
*b"sol_create_program_address",
SyscallCreateProgramAddress::vm,
)?;
result.register_function_hashed(
*b"sol_try_find_program_address",
SyscallTryFindProgramAddress::vm,
)?;
// Sha256
result.register_function_hashed(*b"sol_sha256", SyscallHash::vm::<Sha256Hasher>)?;
// Keccak256
result.register_function_hashed(*b"sol_keccak256", SyscallHash::vm::<Keccak256Hasher>)?;
// Secp256k1 Recover
result.register_function_hashed(*b"sol_secp256k1_recover", SyscallSecp256k1Recover::vm)?;
// Blake3
register_feature_gated_function!(
result,
blake3_syscall_enabled,
*b"sol_blake3",
SyscallHash::vm::<Blake3Hasher>,
)?;
// Elliptic Curve Operations
register_feature_gated_function!(
result,
curve25519_syscall_enabled,
*b"sol_curve_validate_point",
SyscallCurvePointValidation::vm,
)?;
register_feature_gated_function!(
result,
curve25519_syscall_enabled,
*b"sol_curve_group_op",
SyscallCurveGroupOps::vm,
)?;
register_feature_gated_function!(
result,
curve25519_syscall_enabled,
*b"sol_curve_multiscalar_mul",
SyscallCurveMultiscalarMultiplication::vm,
)?;
// Sysvars
result.register_function_hashed(*b"sol_get_clock_sysvar", SyscallGetClockSysvar::vm)?;
result.register_function_hashed(
*b"sol_get_epoch_schedule_sysvar",
SyscallGetEpochScheduleSysvar::vm,
)?;
register_feature_gated_function!(
result,
!disable_fees_sysvar,
*b"sol_get_fees_sysvar",
SyscallGetFeesSysvar::vm,
)?;
result.register_function_hashed(*b"sol_get_rent_sysvar", SyscallGetRentSysvar::vm)?;
register_feature_gated_function!(
result,
last_restart_slot_syscall_enabled,
*b"sol_get_last_restart_slot",
SyscallGetLastRestartSlotSysvar::vm,
)?;
register_feature_gated_function!(
result,
epoch_rewards_syscall_enabled,
*b"sol_get_epoch_rewards_sysvar",
SyscallGetEpochRewardsSysvar::vm,
)?;
// Memory ops
result.register_function_hashed(*b"sol_memcpy_", SyscallMemcpy::vm)?;
result.register_function_hashed(*b"sol_memmove_", SyscallMemmove::vm)?;
result.register_function_hashed(*b"sol_memcmp_", SyscallMemcmp::vm)?;
result.register_function_hashed(*b"sol_memset_", SyscallMemset::vm)?;
// Processed sibling instructions
result.register_function_hashed(
*b"sol_get_processed_sibling_instruction",
SyscallGetProcessedSiblingInstruction::vm,
)?;
// Stack height
result.register_function_hashed(*b"sol_get_stack_height", SyscallGetStackHeight::vm)?;
// Return data
result.register_function_hashed(*b"sol_set_return_data", SyscallSetReturnData::vm)?;
result.register_function_hashed(*b"sol_get_return_data", SyscallGetReturnData::vm)?;
// Cross-program invocation
result.register_function_hashed(*b"sol_invoke_signed_c", SyscallInvokeSignedC::vm)?;
result.register_function_hashed(*b"sol_invoke_signed_rust", SyscallInvokeSignedRust::vm)?;
// Memory allocator
register_feature_gated_function!(
result,
!disable_deploy_of_alloc_free_syscall,
*b"sol_alloc_free_",
SyscallAllocFree::vm,
)?;
// Alt_bn128
register_feature_gated_function!(
result,
enable_alt_bn128_syscall,
*b"sol_alt_bn128_group_op",
SyscallAltBn128::vm,
)?;
// Big_mod_exp
register_feature_gated_function!(
result,
enable_big_mod_exp_syscall,
*b"sol_big_mod_exp",
SyscallBigModExp::vm,
)?;
// Poseidon
register_feature_gated_function!(
result,
enable_poseidon_syscall,
*b"sol_poseidon",
SyscallPoseidon::vm,
)?;
// Accessing remaining compute units
register_feature_gated_function!(
result,
remaining_compute_units_syscall_enabled,
*b"sol_remaining_compute_units",
SyscallRemainingComputeUnits::vm
)?;
// Alt_bn128_compression
register_feature_gated_function!(
result,
enable_alt_bn128_compression_syscall,
*b"sol_alt_bn128_compression",
SyscallAltBn128Compression::vm,
)?;
// Log data
result.register_function_hashed(*b"sol_log_data", SyscallLogData::vm)?;
Ok(BuiltinProgram::new_loader(config, result))
}
fn address_is_aligned<T>(address: u64) -> bool {
(address as *mut T as usize)
.checked_rem(align_of::<T>())
.map(|rem| rem == 0)
.expect("T to be non-zero aligned")
}
fn translate(
memory_mapping: &MemoryMapping,
access_type: AccessType,
vm_addr: u64,
len: u64,
) -> Result<u64, Error> {
memory_mapping
.map(access_type, vm_addr, len)
.map_err(|err| err.into())
.into()
}
fn translate_type_inner<'a, T>(
memory_mapping: &MemoryMapping,
access_type: AccessType,
vm_addr: u64,
check_aligned: bool,
) -> Result<&'a mut T, Error> {
let host_addr = translate(memory_mapping, access_type, vm_addr, size_of::<T>() as u64)?;
if !check_aligned {
Ok(unsafe { std::mem::transmute::<u64, &mut T>(host_addr) })
} else if !address_is_aligned::<T>(host_addr) {
Err(SyscallError::UnalignedPointer.into())
} else {
Ok(unsafe { &mut *(host_addr as *mut T) })
}
}
fn translate_type_mut<'a, T>(
memory_mapping: &MemoryMapping,
vm_addr: u64,
check_aligned: bool,
) -> Result<&'a mut T, Error> {
translate_type_inner::<T>(memory_mapping, AccessType::Store, vm_addr, check_aligned)
}
fn translate_type<'a, T>(
memory_mapping: &MemoryMapping,
vm_addr: u64,
check_aligned: bool,
) -> Result<&'a T, Error> {
translate_type_inner::<T>(memory_mapping, AccessType::Load, vm_addr, check_aligned)
.map(|value| &*value)
}
fn translate_slice_inner<'a, T>(
memory_mapping: &MemoryMapping,
access_type: AccessType,
vm_addr: u64,
len: u64,
check_aligned: bool,
) -> Result<&'a mut [T], Error> {
if len == 0 {
return Ok(&mut []);
}
let total_size = len.saturating_mul(size_of::<T>() as u64);
if isize::try_from(total_size).is_err() {
return Err(SyscallError::InvalidLength.into());
}
let host_addr = translate(memory_mapping, access_type, vm_addr, total_size)?;
if check_aligned && !address_is_aligned::<T>(host_addr) {
return Err(SyscallError::UnalignedPointer.into());
}
Ok(unsafe { from_raw_parts_mut(host_addr as *mut T, len as usize) })
}
fn translate_slice_mut<'a, T>(
memory_mapping: &MemoryMapping,
vm_addr: u64,
len: u64,
check_aligned: bool,
) -> Result<&'a mut [T], Error> {
translate_slice_inner::<T>(
memory_mapping,
AccessType::Store,
vm_addr,
len,
check_aligned,
)
}
fn translate_slice<'a, T>(
memory_mapping: &MemoryMapping,
vm_addr: u64,
len: u64,
check_aligned: bool,
) -> Result<&'a [T], Error> {
translate_slice_inner::<T>(
memory_mapping,
AccessType::Load,
vm_addr,
len,
check_aligned,
)
.map(|value| &*value)
}
/// Take a virtual pointer to a string (points to SBF VM memory space), translate it
/// pass it to a user-defined work function
fn translate_string_and_do(
memory_mapping: &MemoryMapping,
addr: u64,
len: u64,
check_aligned: bool,
stop_truncating_strings_in_syscalls: bool,
work: &mut dyn FnMut(&str) -> Result<u64, Error>,
) -> Result<u64, Error> {
let buf = translate_slice::<u8>(memory_mapping, addr, len, check_aligned)?;
let msg = if stop_truncating_strings_in_syscalls {
buf
} else {
let i = match buf.iter().position(|byte| *byte == 0) {
Some(i) => i,
None => len as usize,
};
buf.get(..i).ok_or(SyscallError::InvalidLength)?
};
match from_utf8(msg) {
Ok(message) => work(message),
Err(err) => Err(SyscallError::InvalidString(err, msg.to_vec()).into()),
}
}
declare_builtin_function!(
/// Abort syscall functions, called when the SBF program calls `abort()`
/// LLVM will insert calls to `abort()` if it detects an untenable situation,
/// `abort()` is not intended to be called explicitly by the program.
/// Causes the SBF program to be halted immediately
SyscallAbort,
fn rust(
_invoke_context: &mut InvokeContext,
_arg1: u64,
_arg2: u64,
_arg3: u64,
_arg4: u64,
_arg5: u64,
_memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
Err(SyscallError::Abort.into())
}
);
declare_builtin_function!(
/// Panic syscall function, called when the SBF program calls 'sol_panic_()`
/// Causes the SBF program to be halted immediately
SyscallPanic,
fn rust(
invoke_context: &mut InvokeContext,
file: u64,
len: u64,
line: u64,
column: u64,
_arg5: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
consume_compute_meter(invoke_context, len)?;
translate_string_and_do(
memory_mapping,
file,
len,
invoke_context.get_check_aligned(),
invoke_context
.feature_set
.is_active(&stop_truncating_strings_in_syscalls::id()),
&mut |string: &str| Err(SyscallError::Panic(string.to_string(), line, column).into()),
)
}
);
declare_builtin_function!(
/// Dynamic memory allocation syscall called when the SBF program calls
/// `sol_alloc_free_()`. The allocator is expected to allocate/free
/// from/to a given chunk of memory and enforce size restrictions. The
/// memory chunk is given to the allocator during allocator creation and
/// information about that memory (start address and size) is passed
/// to the VM to use for enforcement.
SyscallAllocFree,
fn rust(
invoke_context: &mut InvokeContext,
size: u64,
free_addr: u64,
_arg3: u64,
_arg4: u64,
_arg5: u64,
_memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let align = if invoke_context.get_check_aligned() {
BPF_ALIGN_OF_U128
} else {
align_of::<u8>()
};
let Ok(layout) = Layout::from_size_align(size as usize, align) else {
return Ok(0);
};
let allocator = &mut invoke_context.get_syscall_context_mut()?.allocator;
if free_addr == 0 {
match allocator.alloc(layout) {
Ok(addr) => Ok(addr),
Err(_) => Ok(0),
}
} else {
// Unimplemented
Ok(0)
}
}
);
fn translate_and_check_program_address_inputs<'a>(
seeds_addr: u64,
seeds_len: u64,
program_id_addr: u64,
memory_mapping: &mut MemoryMapping,
check_aligned: bool,
) -> Result<(Vec<&'a [u8]>, &'a Pubkey), Error> {
let untranslated_seeds =
translate_slice::<&[u8]>(memory_mapping, seeds_addr, seeds_len, check_aligned)?;
if untranslated_seeds.len() > MAX_SEEDS {
return Err(SyscallError::BadSeeds(PubkeyError::MaxSeedLengthExceeded).into());
}
let seeds = untranslated_seeds
.iter()
.map(|untranslated_seed| {
if untranslated_seed.len() > MAX_SEED_LEN {
return Err(SyscallError::BadSeeds(PubkeyError::MaxSeedLengthExceeded).into());
}
translate_slice::<u8>(
memory_mapping,
untranslated_seed.as_ptr() as *const _ as u64,
untranslated_seed.len() as u64,
check_aligned,
)
})
.collect::<Result<Vec<_>, Error>>()?;
let program_id = translate_type::<Pubkey>(memory_mapping, program_id_addr, check_aligned)?;
Ok((seeds, program_id))
}
declare_builtin_function!(
/// Create a program address
SyscallCreateProgramAddress,
fn rust(
invoke_context: &mut InvokeContext,
seeds_addr: u64,
seeds_len: u64,
program_id_addr: u64,
address_addr: u64,
_arg5: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let cost = invoke_context
.get_compute_budget()
.create_program_address_units;
consume_compute_meter(invoke_context, cost)?;
let (seeds, program_id) = translate_and_check_program_address_inputs(
seeds_addr,
seeds_len,
program_id_addr,
memory_mapping,
invoke_context.get_check_aligned(),
)?;
let Ok(new_address) = Pubkey::create_program_address(&seeds, program_id) else {
return Ok(1);
};
let address = translate_slice_mut::<u8>(
memory_mapping,
address_addr,
32,
invoke_context.get_check_aligned(),
)?;
address.copy_from_slice(new_address.as_ref());
Ok(0)
}
);
declare_builtin_function!(
/// Create a program address
SyscallTryFindProgramAddress,
fn rust(
invoke_context: &mut InvokeContext,
seeds_addr: u64,
seeds_len: u64,
program_id_addr: u64,
address_addr: u64,
bump_seed_addr: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let cost = invoke_context
.get_compute_budget()
.create_program_address_units;
consume_compute_meter(invoke_context, cost)?;
let (seeds, program_id) = translate_and_check_program_address_inputs(
seeds_addr,
seeds_len,
program_id_addr,
memory_mapping,
invoke_context.get_check_aligned(),
)?;
let mut bump_seed = [std::u8::MAX];
for _ in 0..std::u8::MAX {
{
let mut seeds_with_bump = seeds.to_vec();
seeds_with_bump.push(&bump_seed);
if let Ok(new_address) =
Pubkey::create_program_address(&seeds_with_bump, program_id)
{
let bump_seed_ref = translate_type_mut::<u8>(
memory_mapping,
bump_seed_addr,
invoke_context.get_check_aligned(),
)?;
let address = translate_slice_mut::<u8>(
memory_mapping,
address_addr,
std::mem::size_of::<Pubkey>() as u64,
invoke_context.get_check_aligned(),
)?;
if !is_nonoverlapping(
bump_seed_ref as *const _ as usize,
std::mem::size_of_val(bump_seed_ref),
address.as_ptr() as usize,
std::mem::size_of::<Pubkey>(),
) {
return Err(SyscallError::CopyOverlapping.into());
}
*bump_seed_ref = bump_seed[0];
address.copy_from_slice(new_address.as_ref());
return Ok(0);
}
}
bump_seed[0] = bump_seed[0].saturating_sub(1);
consume_compute_meter(invoke_context, cost)?;
}
Ok(1)
}
);
declare_builtin_function!(
/// secp256k1_recover
SyscallSecp256k1Recover,
fn rust(
invoke_context: &mut InvokeContext,
hash_addr: u64,
recovery_id_val: u64,
signature_addr: u64,
result_addr: u64,
_arg5: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let cost = invoke_context.get_compute_budget().secp256k1_recover_cost;
consume_compute_meter(invoke_context, cost)?;
let hash = translate_slice::<u8>(
memory_mapping,
hash_addr,
keccak::HASH_BYTES as u64,
invoke_context.get_check_aligned(),
)?;
let signature = translate_slice::<u8>(
memory_mapping,
signature_addr,
SECP256K1_SIGNATURE_LENGTH as u64,
invoke_context.get_check_aligned(),
)?;
let secp256k1_recover_result = translate_slice_mut::<u8>(
memory_mapping,
result_addr,
SECP256K1_PUBLIC_KEY_LENGTH as u64,
invoke_context.get_check_aligned(),
)?;
let Ok(message) = libsecp256k1::Message::parse_slice(hash) else {
return Ok(Secp256k1RecoverError::InvalidHash.into());
};
let Ok(adjusted_recover_id_val) = recovery_id_val.try_into() else {
return Ok(Secp256k1RecoverError::InvalidRecoveryId.into());
};
let Ok(recovery_id) = libsecp256k1::RecoveryId::parse(adjusted_recover_id_val) else {
return Ok(Secp256k1RecoverError::InvalidRecoveryId.into());
};
let Ok(signature) = libsecp256k1::Signature::parse_standard_slice(signature) else {
return Ok(Secp256k1RecoverError::InvalidSignature.into());
};
let public_key = match libsecp256k1::recover(&message, &signature, &recovery_id) {
Ok(key) => key.serialize(),
Err(_) => {
return Ok(Secp256k1RecoverError::InvalidSignature.into());
}
};
secp256k1_recover_result.copy_from_slice(&public_key[1..65]);
Ok(SUCCESS)
}
);
declare_builtin_function!(
// Elliptic Curve Point Validation
//
// Currently, only curve25519 Edwards and Ristretto representations are supported
SyscallCurvePointValidation,
fn rust(
invoke_context: &mut InvokeContext,
curve_id: u64,
point_addr: u64,
_arg3: u64,
_arg4: u64,
_arg5: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
use solana_zk_token_sdk::curve25519::{curve_syscall_traits::*, edwards, ristretto};
match curve_id {
CURVE25519_EDWARDS => {
let cost = invoke_context
.get_compute_budget()
.curve25519_edwards_validate_point_cost;
consume_compute_meter(invoke_context, cost)?;
let point = translate_type::<edwards::PodEdwardsPoint>(
memory_mapping,
point_addr,
invoke_context.get_check_aligned(),
)?;
if edwards::validate_edwards(point) {
Ok(0)
} else {
Ok(1)
}
}
CURVE25519_RISTRETTO => {
let cost = invoke_context
.get_compute_budget()
.curve25519_ristretto_validate_point_cost;
consume_compute_meter(invoke_context, cost)?;
let point = translate_type::<ristretto::PodRistrettoPoint>(
memory_mapping,
point_addr,
invoke_context.get_check_aligned(),
)?;
if ristretto::validate_ristretto(point) {
Ok(0)
} else {
Ok(1)
}
}
_ => Ok(1),
}
}
);
declare_builtin_function!(
// Elliptic Curve Group Operations
//
// Currently, only curve25519 Edwards and Ristretto representations are supported
SyscallCurveGroupOps,
fn rust(
invoke_context: &mut InvokeContext,
curve_id: u64,
group_op: u64,
left_input_addr: u64,
right_input_addr: u64,
result_point_addr: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
use solana_zk_token_sdk::curve25519::{
curve_syscall_traits::*, edwards, ristretto, scalar,
};
match curve_id {
CURVE25519_EDWARDS => match group_op {
ADD => {
let cost = invoke_context
.get_compute_budget()
.curve25519_edwards_add_cost;
consume_compute_meter(invoke_context, cost)?;
let left_point = translate_type::<edwards::PodEdwardsPoint>(
memory_mapping,
left_input_addr,
invoke_context.get_check_aligned(),
)?;
let right_point = translate_type::<edwards::PodEdwardsPoint>(
memory_mapping,
right_input_addr,
invoke_context.get_check_aligned(),
)?;
if let Some(result_point) = edwards::add_edwards(left_point, right_point) {
*translate_type_mut::<edwards::PodEdwardsPoint>(
memory_mapping,
result_point_addr,
invoke_context.get_check_aligned(),
)? = result_point;
Ok(0)
} else {
Ok(1)
}
}
SUB => {
let cost = invoke_context
.get_compute_budget()
.curve25519_edwards_subtract_cost;
consume_compute_meter(invoke_context, cost)?;
let left_point = translate_type::<edwards::PodEdwardsPoint>(
memory_mapping,
left_input_addr,
invoke_context.get_check_aligned(),
)?;
let right_point = translate_type::<edwards::PodEdwardsPoint>(
memory_mapping,
right_input_addr,
invoke_context.get_check_aligned(),
)?;
if let Some(result_point) = edwards::subtract_edwards(left_point, right_point) {
*translate_type_mut::<edwards::PodEdwardsPoint>(
memory_mapping,
result_point_addr,
invoke_context.get_check_aligned(),
)? = result_point;
Ok(0)
} else {
Ok(1)
}
}
MUL => {
let cost = invoke_context
.get_compute_budget()
.curve25519_edwards_multiply_cost;
consume_compute_meter(invoke_context, cost)?;
let scalar = translate_type::<scalar::PodScalar>(
memory_mapping,
left_input_addr,
invoke_context.get_check_aligned(),
)?;
let input_point = translate_type::<edwards::PodEdwardsPoint>(
memory_mapping,
right_input_addr,
invoke_context.get_check_aligned(),
)?;
if let Some(result_point) = edwards::multiply_edwards(scalar, input_point) {
*translate_type_mut::<edwards::PodEdwardsPoint>(
memory_mapping,
result_point_addr,
invoke_context.get_check_aligned(),
)? = result_point;
Ok(0)
} else {
Ok(1)
}
}
_ => Ok(1),
},
CURVE25519_RISTRETTO => match group_op {
ADD => {
let cost = invoke_context
.get_compute_budget()
.curve25519_ristretto_add_cost;
consume_compute_meter(invoke_context, cost)?;
let left_point = translate_type::<ristretto::PodRistrettoPoint>(
memory_mapping,
left_input_addr,
invoke_context.get_check_aligned(),
)?;
let right_point = translate_type::<ristretto::PodRistrettoPoint>(
memory_mapping,
right_input_addr,
invoke_context.get_check_aligned(),
)?;
if let Some(result_point) = ristretto::add_ristretto(left_point, right_point) {
*translate_type_mut::<ristretto::PodRistrettoPoint>(
memory_mapping,
result_point_addr,
invoke_context.get_check_aligned(),
)? = result_point;
Ok(0)
} else {
Ok(1)
}
}
SUB => {
let cost = invoke_context
.get_compute_budget()
.curve25519_ristretto_subtract_cost;
consume_compute_meter(invoke_context, cost)?;
let left_point = translate_type::<ristretto::PodRistrettoPoint>(
memory_mapping,
left_input_addr,
invoke_context.get_check_aligned(),
)?;
let right_point = translate_type::<ristretto::PodRistrettoPoint>(
memory_mapping,
right_input_addr,
invoke_context.get_check_aligned(),
)?;
if let Some(result_point) =
ristretto::subtract_ristretto(left_point, right_point)
{
*translate_type_mut::<ristretto::PodRistrettoPoint>(
memory_mapping,
result_point_addr,
invoke_context.get_check_aligned(),
)? = result_point;
Ok(0)
} else {
Ok(1)
}
}
MUL => {
let cost = invoke_context
.get_compute_budget()
.curve25519_ristretto_multiply_cost;
consume_compute_meter(invoke_context, cost)?;
let scalar = translate_type::<scalar::PodScalar>(
memory_mapping,
left_input_addr,
invoke_context.get_check_aligned(),
)?;
let input_point = translate_type::<ristretto::PodRistrettoPoint>(
memory_mapping,
right_input_addr,
invoke_context.get_check_aligned(),
)?;
if let Some(result_point) = ristretto::multiply_ristretto(scalar, input_point) {
*translate_type_mut::<ristretto::PodRistrettoPoint>(
memory_mapping,
result_point_addr,
invoke_context.get_check_aligned(),
)? = result_point;
Ok(0)
} else {
Ok(1)
}
}
_ => Ok(1),
},
_ => Ok(1),
}
}
);
declare_builtin_function!(
// Elliptic Curve Multiscalar Multiplication
//
// Currently, only curve25519 Edwards and Ristretto representations are supported
SyscallCurveMultiscalarMultiplication,
fn rust(
invoke_context: &mut InvokeContext,
curve_id: u64,
scalars_addr: u64,
points_addr: u64,
points_len: u64,
result_point_addr: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
use solana_zk_token_sdk::curve25519::{
curve_syscall_traits::*, edwards, ristretto, scalar,
};
match curve_id {
CURVE25519_EDWARDS => {
let cost = invoke_context
.get_compute_budget()
.curve25519_edwards_msm_base_cost
.saturating_add(
invoke_context
.get_compute_budget()
.curve25519_edwards_msm_incremental_cost
.saturating_mul(points_len.saturating_sub(1)),
);
consume_compute_meter(invoke_context, cost)?;
let scalars = translate_slice::<scalar::PodScalar>(
memory_mapping,
scalars_addr,
points_len,
invoke_context.get_check_aligned(),
)?;
let points = translate_slice::<edwards::PodEdwardsPoint>(
memory_mapping,
points_addr,
points_len,
invoke_context.get_check_aligned(),
)?;
if let Some(result_point) = edwards::multiscalar_multiply_edwards(scalars, points) {
*translate_type_mut::<edwards::PodEdwardsPoint>(
memory_mapping,
result_point_addr,
invoke_context.get_check_aligned(),
)? = result_point;
Ok(0)
} else {
Ok(1)
}
}
CURVE25519_RISTRETTO => {
let cost = invoke_context
.get_compute_budget()
.curve25519_ristretto_msm_base_cost
.saturating_add(
invoke_context
.get_compute_budget()
.curve25519_ristretto_msm_incremental_cost
.saturating_mul(points_len.saturating_sub(1)),
);
consume_compute_meter(invoke_context, cost)?;
let scalars = translate_slice::<scalar::PodScalar>(
memory_mapping,
scalars_addr,
points_len,
invoke_context.get_check_aligned(),
)?;
let points = translate_slice::<ristretto::PodRistrettoPoint>(
memory_mapping,
points_addr,
points_len,
invoke_context.get_check_aligned(),
)?;
if let Some(result_point) =
ristretto::multiscalar_multiply_ristretto(scalars, points)
{
*translate_type_mut::<ristretto::PodRistrettoPoint>(
memory_mapping,
result_point_addr,
invoke_context.get_check_aligned(),
)? = result_point;
Ok(0)
} else {
Ok(1)
}
}
_ => Ok(1),
}
}
);
declare_builtin_function!(
/// Set return data
SyscallSetReturnData,
fn rust(
invoke_context: &mut InvokeContext,
addr: u64,
len: u64,
_arg3: u64,
_arg4: u64,
_arg5: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let budget = invoke_context.get_compute_budget();
let cost = len
.checked_div(budget.cpi_bytes_per_unit)
.unwrap_or(u64::MAX)
.saturating_add(budget.syscall_base_cost);
consume_compute_meter(invoke_context, cost)?;
if len > MAX_RETURN_DATA as u64 {
return Err(SyscallError::ReturnDataTooLarge(len, MAX_RETURN_DATA as u64).into());
}
let return_data = if len == 0 {
Vec::new()
} else {
translate_slice::<u8>(
memory_mapping,
addr,
len,
invoke_context.get_check_aligned(),
)?
.to_vec()
};
let transaction_context = &mut invoke_context.transaction_context;
let program_id = *transaction_context
.get_current_instruction_context()
.and_then(|instruction_context| {
instruction_context.get_last_program_key(transaction_context)
})?;
transaction_context.set_return_data(program_id, return_data)?;
Ok(0)
}
);
declare_builtin_function!(
/// Get return data
SyscallGetReturnData,
fn rust(
invoke_context: &mut InvokeContext,
return_data_addr: u64,
length: u64,
program_id_addr: u64,
_arg4: u64,
_arg5: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let budget = invoke_context.get_compute_budget();
consume_compute_meter(invoke_context, budget.syscall_base_cost)?;
let (program_id, return_data) = invoke_context.transaction_context.get_return_data();
let length = length.min(return_data.len() as u64);
if length != 0 {
let cost = length
.saturating_add(size_of::<Pubkey>() as u64)
.checked_div(budget.cpi_bytes_per_unit)
.unwrap_or(u64::MAX);
consume_compute_meter(invoke_context, cost)?;
let return_data_result = translate_slice_mut::<u8>(
memory_mapping,
return_data_addr,
length,
invoke_context.get_check_aligned(),
)?;
let to_slice = return_data_result;
let from_slice = return_data
.get(..length as usize)
.ok_or(SyscallError::InvokeContextBorrowFailed)?;
if to_slice.len() != from_slice.len() {
return Err(SyscallError::InvalidLength.into());
}
to_slice.copy_from_slice(from_slice);
let program_id_result = translate_type_mut::<Pubkey>(
memory_mapping,
program_id_addr,
invoke_context.get_check_aligned(),
)?;
if !is_nonoverlapping(
to_slice.as_ptr() as usize,
length as usize,
program_id_result as *const _ as usize,
std::mem::size_of::<Pubkey>(),
) {
return Err(SyscallError::CopyOverlapping.into());
}
*program_id_result = *program_id;
}
// Return the actual length, rather the length returned
Ok(return_data.len() as u64)
}
);
declare_builtin_function!(
/// Get a processed sigling instruction
SyscallGetProcessedSiblingInstruction,
fn rust(
invoke_context: &mut InvokeContext,
index: u64,
meta_addr: u64,
program_id_addr: u64,
data_addr: u64,
accounts_addr: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let budget = invoke_context.get_compute_budget();
consume_compute_meter(invoke_context, budget.syscall_base_cost)?;
let stop_sibling_instruction_search_at_parent = invoke_context
.feature_set
.is_active(&stop_sibling_instruction_search_at_parent::id());
// Reverse iterate through the instruction trace,
// ignoring anything except instructions on the same level
let stack_height = invoke_context.get_stack_height();
let instruction_trace_length = invoke_context
.transaction_context
.get_instruction_trace_length();
let mut reverse_index_at_stack_height = 0;
let mut found_instruction_context = None;
for index_in_trace in (0..instruction_trace_length).rev() {
let instruction_context = invoke_context
.transaction_context
.get_instruction_context_at_index_in_trace(index_in_trace)?;
if (stop_sibling_instruction_search_at_parent
|| instruction_context.get_stack_height() == TRANSACTION_LEVEL_STACK_HEIGHT)
&& instruction_context.get_stack_height() < stack_height
{
break;
}
if instruction_context.get_stack_height() == stack_height {
if index.saturating_add(1) == reverse_index_at_stack_height {
found_instruction_context = Some(instruction_context);
break;
}
reverse_index_at_stack_height = reverse_index_at_stack_height.saturating_add(1);
}
}
if let Some(instruction_context) = found_instruction_context {
let result_header = translate_type_mut::<ProcessedSiblingInstruction>(
memory_mapping,
meta_addr,
invoke_context.get_check_aligned(),
)?;
if result_header.data_len == (instruction_context.get_instruction_data().len() as u64)
&& result_header.accounts_len
== (instruction_context.get_number_of_instruction_accounts() as u64)
{
let program_id = translate_type_mut::<Pubkey>(
memory_mapping,
program_id_addr,
invoke_context.get_check_aligned(),
)?;
let data = translate_slice_mut::<u8>(
memory_mapping,
data_addr,
result_header.data_len,
invoke_context.get_check_aligned(),
)?;
let accounts = translate_slice_mut::<AccountMeta>(
memory_mapping,
accounts_addr,
result_header.accounts_len,
invoke_context.get_check_aligned(),
)?;
if !is_nonoverlapping(
result_header as *const _ as usize,
std::mem::size_of::<ProcessedSiblingInstruction>(),
program_id as *const _ as usize,
std::mem::size_of::<Pubkey>(),
) || !is_nonoverlapping(
result_header as *const _ as usize,
std::mem::size_of::<ProcessedSiblingInstruction>(),
accounts.as_ptr() as usize,
std::mem::size_of::<AccountMeta>()
.saturating_mul(result_header.accounts_len as usize),
) || !is_nonoverlapping(
result_header as *const _ as usize,
std::mem::size_of::<ProcessedSiblingInstruction>(),
data.as_ptr() as usize,
result_header.data_len as usize,
) || !is_nonoverlapping(
program_id as *const _ as usize,
std::mem::size_of::<Pubkey>(),
data.as_ptr() as usize,
result_header.data_len as usize,
) || !is_nonoverlapping(
program_id as *const _ as usize,
std::mem::size_of::<Pubkey>(),
accounts.as_ptr() as usize,
std::mem::size_of::<AccountMeta>()
.saturating_mul(result_header.accounts_len as usize),
) || !is_nonoverlapping(
data.as_ptr() as usize,
result_header.data_len as usize,
accounts.as_ptr() as usize,
std::mem::size_of::<AccountMeta>()
.saturating_mul(result_header.accounts_len as usize),
) {
return Err(SyscallError::CopyOverlapping.into());
}
*program_id = *instruction_context
.get_last_program_key(invoke_context.transaction_context)?;
data.clone_from_slice(instruction_context.get_instruction_data());
let account_metas = (0..instruction_context.get_number_of_instruction_accounts())
.map(|instruction_account_index| {
Ok(AccountMeta {
pubkey: *invoke_context
.transaction_context
.get_key_of_account_at_index(
instruction_context
.get_index_of_instruction_account_in_transaction(
instruction_account_index,
)?,
)?,
is_signer: instruction_context
.is_instruction_account_signer(instruction_account_index)?,
is_writable: instruction_context
.is_instruction_account_writable(instruction_account_index)?,
})
})
.collect::<Result<Vec<_>, InstructionError>>()?;
accounts.clone_from_slice(account_metas.as_slice());
}
result_header.data_len = instruction_context.get_instruction_data().len() as u64;
result_header.accounts_len =
instruction_context.get_number_of_instruction_accounts() as u64;
return Ok(true as u64);
}
Ok(false as u64)
}
);
declare_builtin_function!(
/// Get current call stack height
SyscallGetStackHeight,
fn rust(
invoke_context: &mut InvokeContext,
_arg1: u64,
_arg2: u64,
_arg3: u64,
_arg4: u64,
_arg5: u64,
_memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let budget = invoke_context.get_compute_budget();
consume_compute_meter(invoke_context, budget.syscall_base_cost)?;
Ok(invoke_context.get_stack_height() as u64)
}
);
declare_builtin_function!(
/// alt_bn128 group operations
SyscallAltBn128,
fn rust(
invoke_context: &mut InvokeContext,
group_op: u64,
input_addr: u64,
input_size: u64,
result_addr: u64,
_arg5: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
use solana_sdk::alt_bn128::prelude::{ALT_BN128_ADD, ALT_BN128_MUL, ALT_BN128_PAIRING};
let budget = invoke_context.get_compute_budget();
let (cost, output): (u64, usize) = match group_op {
ALT_BN128_ADD => (
budget.alt_bn128_addition_cost,
ALT_BN128_ADDITION_OUTPUT_LEN,
),
ALT_BN128_MUL => (
budget.alt_bn128_multiplication_cost,
ALT_BN128_MULTIPLICATION_OUTPUT_LEN,
),
ALT_BN128_PAIRING => {
let ele_len = input_size
.checked_div(ALT_BN128_PAIRING_ELEMENT_LEN as u64)
.expect("div by non-zero constant");
let cost = budget
.alt_bn128_pairing_one_pair_cost_first
.saturating_add(
budget
.alt_bn128_pairing_one_pair_cost_other
.saturating_mul(ele_len.saturating_sub(1)),
)
.saturating_add(budget.sha256_base_cost)
.saturating_add(input_size)
.saturating_add(ALT_BN128_PAIRING_OUTPUT_LEN as u64);
(cost, ALT_BN128_PAIRING_OUTPUT_LEN)
}
_ => {
return Err(SyscallError::InvalidAttribute.into());
}
};
consume_compute_meter(invoke_context, cost)?;
let input = translate_slice::<u8>(
memory_mapping,
input_addr,
input_size,
invoke_context.get_check_aligned(),
)?;
let call_result = translate_slice_mut::<u8>(
memory_mapping,
result_addr,
output as u64,
invoke_context.get_check_aligned(),
)?;
let calculation = match group_op {
ALT_BN128_ADD => alt_bn128_addition,
ALT_BN128_MUL => alt_bn128_multiplication,
ALT_BN128_PAIRING => alt_bn128_pairing,
_ => {
return Err(SyscallError::InvalidAttribute.into());
}
};
let result_point = match calculation(input) {
Ok(result_point) => result_point,
Err(e) => {
return Ok(e.into());
}
};
if result_point.len() != output {
return Ok(AltBn128Error::SliceOutOfBounds.into());
}
call_result.copy_from_slice(&result_point);
Ok(SUCCESS)
}
);
declare_builtin_function!(
/// Big integer modular exponentiation
SyscallBigModExp,
fn rust(
invoke_context: &mut InvokeContext,
params: u64,
return_value: u64,
_arg3: u64,
_arg4: u64,
_arg5: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let params = &translate_slice::<BigModExpParams>(
memory_mapping,
params,
1,
invoke_context.get_check_aligned(),
)?
.first()
.ok_or(SyscallError::InvalidLength)?;
if params.base_len > 512 || params.exponent_len > 512 || params.modulus_len > 512 {
return Err(Box::new(SyscallError::InvalidLength));
}
let input_len: u64 = std::cmp::max(params.base_len, params.exponent_len);
let input_len: u64 = std::cmp::max(input_len, params.modulus_len);
let budget = invoke_context.get_compute_budget();
consume_compute_meter(
invoke_context,
budget.syscall_base_cost.saturating_add(
input_len
.saturating_mul(input_len)
.checked_div(budget.big_modular_exponentiation_cost)
.unwrap_or(u64::MAX),
),
)?;
let base = translate_slice::<u8>(
memory_mapping,
params.base as *const _ as u64,
params.base_len,
invoke_context.get_check_aligned(),
)?;
let exponent = translate_slice::<u8>(
memory_mapping,
params.exponent as *const _ as u64,
params.exponent_len,
invoke_context.get_check_aligned(),
)?;
let modulus = translate_slice::<u8>(
memory_mapping,
params.modulus as *const _ as u64,
params.modulus_len,
invoke_context.get_check_aligned(),
)?;
let value = big_mod_exp(base, exponent, modulus);
let return_value = translate_slice_mut::<u8>(
memory_mapping,
return_value,
params.modulus_len,
invoke_context.get_check_aligned(),
)?;
return_value.copy_from_slice(value.as_slice());
Ok(0)
}
);
declare_builtin_function!(
// Poseidon
SyscallPoseidon,
fn rust(
invoke_context: &mut InvokeContext,
parameters: u64,
endianness: u64,
vals_addr: u64,
vals_len: u64,
result_addr: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let parameters: poseidon::Parameters = parameters.try_into()?;
let endianness: poseidon::Endianness = endianness.try_into()?;
if vals_len > 12 {
ic_msg!(
invoke_context,
"Poseidon hashing {} sequences is not supported",
vals_len,
);
return Err(SyscallError::InvalidLength.into());
}
let budget = invoke_context.get_compute_budget();
let Some(cost) = budget.poseidon_cost(vals_len) else {
ic_msg!(
invoke_context,
"Overflow while calculating the compute cost"
);
return Err(SyscallError::ArithmeticOverflow.into());
};
consume_compute_meter(invoke_context, cost.to_owned())?;
let hash_result = translate_slice_mut::<u8>(
memory_mapping,
result_addr,
poseidon::HASH_BYTES as u64,
invoke_context.get_check_aligned(),
)?;
let inputs = translate_slice::<&[u8]>(
memory_mapping,
vals_addr,
vals_len,
invoke_context.get_check_aligned(),
)?;
let inputs = inputs
.iter()
.map(|input| {
translate_slice::<u8>(
memory_mapping,
input.as_ptr() as *const _ as u64,
input.len() as u64,
invoke_context.get_check_aligned(),
)
})
.collect::<Result<Vec<_>, Error>>()?;
let hash = match poseidon::hashv(parameters, endianness, inputs.as_slice()) {
Ok(hash) => hash,
Err(e) => {
return Ok(e.into());
}
};
hash_result.copy_from_slice(&hash.to_bytes());
Ok(SUCCESS)
}
);
declare_builtin_function!(
/// Read remaining compute units
SyscallRemainingComputeUnits,
fn rust(
invoke_context: &mut InvokeContext,
_arg1: u64,
_arg2: u64,
_arg3: u64,
_arg4: u64,
_arg5: u64,
_memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let budget = invoke_context.get_compute_budget();
consume_compute_meter(invoke_context, budget.syscall_base_cost)?;
use solana_rbpf::vm::ContextObject;
Ok(invoke_context.get_remaining())
}
);
declare_builtin_function!(
/// alt_bn128 g1 and g2 compression and decompression
SyscallAltBn128Compression,
fn rust(
invoke_context: &mut InvokeContext,
op: u64,
input_addr: u64,
input_size: u64,
result_addr: u64,
_arg5: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
use solana_sdk::alt_bn128::compression::prelude::{
alt_bn128_g1_compress, alt_bn128_g1_decompress, alt_bn128_g2_compress,
alt_bn128_g2_decompress, ALT_BN128_G1_COMPRESS, ALT_BN128_G1_DECOMPRESS,
ALT_BN128_G2_COMPRESS, ALT_BN128_G2_DECOMPRESS, G1, G1_COMPRESSED, G2, G2_COMPRESSED,
};
let budget = invoke_context.get_compute_budget();
let base_cost = budget.syscall_base_cost;
let (cost, output): (u64, usize) = match op {
ALT_BN128_G1_COMPRESS => (
base_cost.saturating_add(budget.alt_bn128_g1_compress),
G1_COMPRESSED,
),
ALT_BN128_G1_DECOMPRESS => {
(base_cost.saturating_add(budget.alt_bn128_g1_decompress), G1)
}
ALT_BN128_G2_COMPRESS => (
base_cost.saturating_add(budget.alt_bn128_g2_compress),
G2_COMPRESSED,
),
ALT_BN128_G2_DECOMPRESS => {
(base_cost.saturating_add(budget.alt_bn128_g2_decompress), G2)
}
_ => {
return Err(SyscallError::InvalidAttribute.into());
}
};
consume_compute_meter(invoke_context, cost)?;
let input = translate_slice::<u8>(
memory_mapping,
input_addr,
input_size,
invoke_context.get_check_aligned(),
)?;
let call_result = translate_slice_mut::<u8>(
memory_mapping,
result_addr,
output as u64,
invoke_context.get_check_aligned(),
)?;
match op {
ALT_BN128_G1_COMPRESS => {
let result_point = match alt_bn128_g1_compress(input) {
Ok(result_point) => result_point,
Err(e) => {
return Ok(e.into());
}
};
call_result.copy_from_slice(&result_point);
Ok(SUCCESS)
}
ALT_BN128_G1_DECOMPRESS => {
let result_point = match alt_bn128_g1_decompress(input) {
Ok(result_point) => result_point,
Err(e) => {
return Ok(e.into());
}
};
call_result.copy_from_slice(&result_point);
Ok(SUCCESS)
}
ALT_BN128_G2_COMPRESS => {
let result_point = match alt_bn128_g2_compress(input) {
Ok(result_point) => result_point,
Err(e) => {
return Ok(e.into());
}
};
call_result.copy_from_slice(&result_point);
Ok(SUCCESS)
}
ALT_BN128_G2_DECOMPRESS => {
let result_point = match alt_bn128_g2_decompress(input) {
Ok(result_point) => result_point,
Err(e) => {
return Ok(e.into());
}
};
call_result.copy_from_slice(&result_point);
Ok(SUCCESS)
}
_ => Err(SyscallError::InvalidAttribute.into()),
}
}
);
declare_builtin_function!(
// Generic Hashing Syscall
SyscallHash<H: HasherImpl>,
fn rust(
invoke_context: &mut InvokeContext,
vals_addr: u64,
vals_len: u64,
result_addr: u64,
_arg4: u64,
_arg5: u64,
memory_mapping: &mut MemoryMapping,
) -> Result<u64, Error> {
let compute_budget = invoke_context.get_compute_budget();
let hash_base_cost = H::get_base_cost(compute_budget);
let hash_byte_cost = H::get_byte_cost(compute_budget);
let hash_max_slices = H::get_max_slices(compute_budget);
if hash_max_slices < vals_len {
ic_msg!(
invoke_context,
"{} Hashing {} sequences in one syscall is over the limit {}",
H::NAME,
vals_len,
hash_max_slices,
);
return Err(SyscallError::TooManySlices.into());
}
consume_compute_meter(invoke_context, hash_base_cost)?;
let hash_result = translate_slice_mut::<u8>(
memory_mapping,
result_addr,
std::mem::size_of::<H::Output>() as u64,
invoke_context.get_check_aligned(),
)?;
let mut hasher = H::create_hasher();
if vals_len > 0 {
let vals = translate_slice::<&[u8]>(
memory_mapping,
vals_addr,
vals_len,
invoke_context.get_check_aligned(),
)?;
for val in vals.iter() {
let bytes = translate_slice::<u8>(
memory_mapping,
val.as_ptr() as u64,
val.len() as u64,
invoke_context.get_check_aligned(),
)?;
let cost = compute_budget.mem_op_base_cost.max(
hash_byte_cost.saturating_mul(
(val.len() as u64)
.checked_div(2)
.expect("div by non-zero literal"),
),
);
consume_compute_meter(invoke_context, cost)?;
hasher.hash(bytes);
}
}
hash_result.copy_from_slice(hasher.result().as_ref());
Ok(0)
}
);
#[cfg(test)]
#[allow(clippy::arithmetic_side_effects)]
#[allow(clippy::indexing_slicing)]
mod tests {
#[allow(deprecated)]
use solana_sdk::sysvar::fees::Fees;
use {
super::*,
crate::mock_create_vm,
assert_matches::assert_matches,
core::slice,
solana_program_runtime::{invoke_context::InvokeContext, with_mock_invoke_context},
solana_rbpf::{
error::EbpfError, memory_region::MemoryRegion, program::SBPFVersion, vm::Config,
},
solana_sdk::{
account::{create_account_shared_data_for_test, AccountSharedData},
bpf_loader,
fee_calculator::FeeCalculator,
hash::{hashv, HASH_BYTES},
instruction::Instruction,
program::check_type_assumptions,
stable_layout::stable_instruction::StableInstruction,
sysvar::{
self, clock::Clock, epoch_rewards::EpochRewards, epoch_schedule::EpochSchedule,
},
},
std::{mem, str::FromStr},
};
macro_rules! assert_access_violation {
($result:expr, $va:expr, $len:expr) => {
match $result.unwrap_err().downcast_ref::<EbpfError>().unwrap() {
EbpfError::AccessViolation(_, va, len, _) if $va == *va && $len == *len => {}
EbpfError::StackAccessViolation(_, va, len, _) if $va == *va && $len == *len => {}
_ => panic!(),
}
};
}
macro_rules! prepare_mockup {
($invoke_context:ident,
$program_key:ident,
$loader_key:expr $(,)?) => {
let $program_key = Pubkey::new_unique();
let transaction_accounts = vec![
(
$loader_key,
AccountSharedData::new(0, 0, &native_loader::id()),
),
($program_key, AccountSharedData::new(0, 0, &$loader_key)),
];
with_mock_invoke_context!($invoke_context, transaction_context, transaction_accounts);
$invoke_context
.transaction_context
.get_next_instruction_context()
.unwrap()
.configure(&[0, 1], &[], &[]);
$invoke_context.push().unwrap();
};
}
#[allow(dead_code)]
struct MockSlice {
pub vm_addr: u64,
pub len: usize,
}
#[test]
fn test_translate() {
const START: u64 = 0x100000000;
const LENGTH: u64 = 1000;
let data = vec![0u8; LENGTH as usize];
let addr = data.as_ptr() as u64;
let config = Config::default();
let memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_readonly(&data, START)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let cases = vec![
(true, START, 0, addr),
(true, START, 1, addr),
(true, START, LENGTH, addr),
(true, START + 1, LENGTH - 1, addr + 1),
(false, START + 1, LENGTH, 0),
(true, START + LENGTH - 1, 1, addr + LENGTH - 1),
(true, START + LENGTH, 0, addr + LENGTH),
(false, START + LENGTH, 1, 0),
(false, START, LENGTH + 1, 0),
(false, 0, 0, 0),
(false, 0, 1, 0),
(false, START - 1, 0, 0),
(false, START - 1, 1, 0),
(true, START + LENGTH / 2, LENGTH / 2, addr + LENGTH / 2),
];
for (ok, start, length, value) in cases {
if ok {
assert_eq!(
translate(&memory_mapping, AccessType::Load, start, length).unwrap(),
value
)
} else {
assert!(translate(&memory_mapping, AccessType::Load, start, length).is_err())
}
}
}
#[test]
fn test_translate_type() {
let config = Config::default();
// Pubkey
let pubkey = solana_sdk::pubkey::new_rand();
let memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_readonly(bytes_of(&pubkey), 0x100000000)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let translated_pubkey =
translate_type::<Pubkey>(&memory_mapping, 0x100000000, true).unwrap();
assert_eq!(pubkey, *translated_pubkey);
// Instruction
let instruction = Instruction::new_with_bincode(
solana_sdk::pubkey::new_rand(),
&"foobar",
vec![AccountMeta::new(solana_sdk::pubkey::new_rand(), false)],
);
let instruction = StableInstruction::from(instruction);
let memory_region = MemoryRegion::new_readonly(bytes_of(&instruction), 0x100000000);
let memory_mapping =
MemoryMapping::new(vec![memory_region], &config, &SBPFVersion::V2).unwrap();
let translated_instruction =
translate_type::<StableInstruction>(&memory_mapping, 0x100000000, true).unwrap();
assert_eq!(instruction, *translated_instruction);
let memory_region = MemoryRegion::new_readonly(&bytes_of(&instruction)[..1], 0x100000000);
let memory_mapping =
MemoryMapping::new(vec![memory_region], &config, &SBPFVersion::V2).unwrap();
assert!(translate_type::<Instruction>(&memory_mapping, 0x100000000, true).is_err());
}
#[test]
fn test_translate_slice() {
let config = Config::default();
// zero len
let good_data = vec![1u8, 2, 3, 4, 5];
let data: Vec<u8> = vec![];
assert_eq!(0x1 as *const u8, data.as_ptr());
let memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_readonly(&good_data, 0x100000000)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let translated_data =
translate_slice::<u8>(&memory_mapping, data.as_ptr() as u64, 0, true).unwrap();
assert_eq!(data, translated_data);
assert_eq!(0, translated_data.len());
// u8
let mut data = vec![1u8, 2, 3, 4, 5];
let memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_readonly(&data, 0x100000000)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let translated_data =
translate_slice::<u8>(&memory_mapping, 0x100000000, data.len() as u64, true).unwrap();
assert_eq!(data, translated_data);
*data.first_mut().unwrap() = 10;
assert_eq!(data, translated_data);
assert!(
translate_slice::<u8>(&memory_mapping, data.as_ptr() as u64, u64::MAX, true).is_err()
);
assert!(
translate_slice::<u8>(&memory_mapping, 0x100000000 - 1, data.len() as u64, true,)
.is_err()
);
// u64
let mut data = vec![1u64, 2, 3, 4, 5];
let memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_readonly(
bytes_of_slice(&data),
0x100000000,
)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let translated_data =
translate_slice::<u64>(&memory_mapping, 0x100000000, data.len() as u64, true).unwrap();
assert_eq!(data, translated_data);
*data.first_mut().unwrap() = 10;
assert_eq!(data, translated_data);
assert!(translate_slice::<u64>(&memory_mapping, 0x100000000, u64::MAX, true).is_err());
// Pubkeys
let mut data = vec![solana_sdk::pubkey::new_rand(); 5];
let memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_readonly(
unsafe {
slice::from_raw_parts(data.as_ptr() as *const u8, mem::size_of::<Pubkey>() * 5)
},
0x100000000,
)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let translated_data =
translate_slice::<Pubkey>(&memory_mapping, 0x100000000, data.len() as u64, true)
.unwrap();
assert_eq!(data, translated_data);
*data.first_mut().unwrap() = solana_sdk::pubkey::new_rand(); // Both should point to same place
assert_eq!(data, translated_data);
}
#[test]
fn test_translate_string_and_do() {
let string = "Gaggablaghblagh!";
let config = Config::default();
let memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_readonly(string.as_bytes(), 0x100000000)],
&config,
&SBPFVersion::V2,
)
.unwrap();
assert_eq!(
42,
translate_string_and_do(
&memory_mapping,
0x100000000,
string.len() as u64,
true,
true,
&mut |string: &str| {
assert_eq!(string, "Gaggablaghblagh!");
Ok(42)
}
)
.unwrap()
);
}
#[test]
#[should_panic(expected = "Abort")]
fn test_syscall_abort() {
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let config = Config::default();
let mut memory_mapping = MemoryMapping::new(vec![], &config, &SBPFVersion::V2).unwrap();
let result = SyscallAbort::rust(&mut invoke_context, 0, 0, 0, 0, 0, &mut memory_mapping);
result.unwrap();
}
#[test]
#[should_panic(expected = "Panic(\"Gaggablaghblagh!\", 42, 84)")]
fn test_syscall_sol_panic() {
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let string = "Gaggablaghblagh!";
let config = Config::default();
let mut memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_readonly(string.as_bytes(), 0x100000000)],
&config,
&SBPFVersion::V2,
)
.unwrap();
invoke_context.mock_set_remaining(string.len() as u64 - 1);
let result = SyscallPanic::rust(
&mut invoke_context,
0x100000000,
string.len() as u64,
42,
84,
0,
&mut memory_mapping,
);
assert_matches!(
result,
Result::Err(error) if error.downcast_ref::<InstructionError>().unwrap() == &InstructionError::ComputationalBudgetExceeded
);
invoke_context.mock_set_remaining(string.len() as u64);
let result = SyscallPanic::rust(
&mut invoke_context,
0x100000000,
string.len() as u64,
42,
84,
0,
&mut memory_mapping,
);
result.unwrap();
}
#[test]
fn test_syscall_sol_log() {
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let string = "Gaggablaghblagh!";
let config = Config::default();
let mut memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_readonly(string.as_bytes(), 0x100000000)],
&config,
&SBPFVersion::V2,
)
.unwrap();
invoke_context.mock_set_remaining(400 - 1);
let result = SyscallLog::rust(
&mut invoke_context,
0x100000001, // AccessViolation
string.len() as u64,
0,
0,
0,
&mut memory_mapping,
);
assert_access_violation!(result, 0x100000001, string.len() as u64);
let result = SyscallLog::rust(
&mut invoke_context,
0x100000000,
string.len() as u64 * 2, // AccessViolation
0,
0,
0,
&mut memory_mapping,
);
assert_access_violation!(result, 0x100000000, string.len() as u64 * 2);
let result = SyscallLog::rust(
&mut invoke_context,
0x100000000,
string.len() as u64,
0,
0,
0,
&mut memory_mapping,
);
result.unwrap();
let result = SyscallLog::rust(
&mut invoke_context,
0x100000000,
string.len() as u64,
0,
0,
0,
&mut memory_mapping,
);
assert_matches!(
result,
Result::Err(error) if error.downcast_ref::<InstructionError>().unwrap() == &InstructionError::ComputationalBudgetExceeded
);
assert_eq!(
invoke_context
.get_log_collector()
.unwrap()
.borrow()
.get_recorded_content(),
&["Program log: Gaggablaghblagh!".to_string()]
);
}
#[test]
fn test_syscall_sol_log_u64() {
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let cost = invoke_context.get_compute_budget().log_64_units;
invoke_context.mock_set_remaining(cost);
let config = Config::default();
let mut memory_mapping = MemoryMapping::new(vec![], &config, &SBPFVersion::V2).unwrap();
let result = SyscallLogU64::rust(&mut invoke_context, 1, 2, 3, 4, 5, &mut memory_mapping);
result.unwrap();
assert_eq!(
invoke_context
.get_log_collector()
.unwrap()
.borrow()
.get_recorded_content(),
&["Program log: 0x1, 0x2, 0x3, 0x4, 0x5".to_string()]
);
}
#[test]
fn test_syscall_sol_pubkey() {
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let cost = invoke_context.get_compute_budget().log_pubkey_units;
let pubkey = Pubkey::from_str("MoqiU1vryuCGQSxFKA1SZ316JdLEFFhoAu6cKUNk7dN").unwrap();
let config = Config::default();
let mut memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_readonly(bytes_of(&pubkey), 0x100000000)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let result = SyscallLogPubkey::rust(
&mut invoke_context,
0x100000001, // AccessViolation
32,
0,
0,
0,
&mut memory_mapping,
);
assert_access_violation!(result, 0x100000001, 32);
invoke_context.mock_set_remaining(1);
let result =
SyscallLogPubkey::rust(&mut invoke_context, 100, 32, 0, 0, 0, &mut memory_mapping);
assert_matches!(
result,
Result::Err(error) if error.downcast_ref::<InstructionError>().unwrap() == &InstructionError::ComputationalBudgetExceeded
);
invoke_context.mock_set_remaining(cost);
let result = SyscallLogPubkey::rust(
&mut invoke_context,
0x100000000,
0,
0,
0,
0,
&mut memory_mapping,
);
result.unwrap();
assert_eq!(
invoke_context
.get_log_collector()
.unwrap()
.borrow()
.get_recorded_content(),
&["Program log: MoqiU1vryuCGQSxFKA1SZ316JdLEFFhoAu6cKUNk7dN".to_string()]
);
}
#[test]
fn test_syscall_sol_alloc_free() {
// large alloc
{
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
mock_create_vm!(vm, Vec::new(), Vec::new(), &mut invoke_context);
let mut vm = vm.unwrap();
let invoke_context = &mut vm.context_object_pointer;
let memory_mapping = &mut vm.memory_mapping;
let result = SyscallAllocFree::rust(
invoke_context,
solana_sdk::entrypoint::HEAP_LENGTH as u64,
0,
0,
0,
0,
memory_mapping,
);
assert_ne!(result.unwrap(), 0);
let result = SyscallAllocFree::rust(
invoke_context,
solana_sdk::entrypoint::HEAP_LENGTH as u64,
0,
0,
0,
0,
memory_mapping,
);
assert_eq!(result.unwrap(), 0);
let result =
SyscallAllocFree::rust(invoke_context, u64::MAX, 0, 0, 0, 0, memory_mapping);
assert_eq!(result.unwrap(), 0);
}
// many small unaligned allocs
{
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
invoke_context.feature_set = Arc::new(FeatureSet::default());
mock_create_vm!(vm, Vec::new(), Vec::new(), &mut invoke_context);
let mut vm = vm.unwrap();
let invoke_context = &mut vm.context_object_pointer;
let memory_mapping = &mut vm.memory_mapping;
for _ in 0..100 {
let result = SyscallAllocFree::rust(invoke_context, 1, 0, 0, 0, 0, memory_mapping);
assert_ne!(result.unwrap(), 0);
}
let result = SyscallAllocFree::rust(
invoke_context,
solana_sdk::entrypoint::HEAP_LENGTH as u64,
0,
0,
0,
0,
memory_mapping,
);
assert_eq!(result.unwrap(), 0);
}
// many small aligned allocs
{
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
mock_create_vm!(vm, Vec::new(), Vec::new(), &mut invoke_context);
let mut vm = vm.unwrap();
let invoke_context = &mut vm.context_object_pointer;
let memory_mapping = &mut vm.memory_mapping;
for _ in 0..12 {
let result = SyscallAllocFree::rust(invoke_context, 1, 0, 0, 0, 0, memory_mapping);
assert_ne!(result.unwrap(), 0);
}
let result = SyscallAllocFree::rust(
invoke_context,
solana_sdk::entrypoint::HEAP_LENGTH as u64,
0,
0,
0,
0,
memory_mapping,
);
assert_eq!(result.unwrap(), 0);
}
// aligned allocs
fn aligned<T>() {
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
mock_create_vm!(vm, Vec::new(), Vec::new(), &mut invoke_context);
let mut vm = vm.unwrap();
let invoke_context = &mut vm.context_object_pointer;
let memory_mapping = &mut vm.memory_mapping;
let result = SyscallAllocFree::rust(
invoke_context,
size_of::<T>() as u64,
0,
0,
0,
0,
memory_mapping,
);
let address = result.unwrap();
assert_ne!(address, 0);
assert!(address_is_aligned::<T>(address));
}
aligned::<u8>();
aligned::<u16>();
aligned::<u32>();
aligned::<u64>();
aligned::<u128>();
}
#[test]
fn test_syscall_sha256() {
let config = Config::default();
prepare_mockup!(invoke_context, program_id, bpf_loader_deprecated::id());
let bytes1 = "Gaggablaghblagh!";
let bytes2 = "flurbos";
let mock_slice1 = MockSlice {
vm_addr: 0x300000000,
len: bytes1.len(),
};
let mock_slice2 = MockSlice {
vm_addr: 0x400000000,
len: bytes2.len(),
};
let bytes_to_hash = [mock_slice1, mock_slice2];
let mut hash_result = [0; HASH_BYTES];
let ro_len = bytes_to_hash.len() as u64;
let ro_va = 0x100000000;
let rw_va = 0x200000000;
let mut memory_mapping = MemoryMapping::new(
vec![
MemoryRegion::new_readonly(bytes_of_slice(&bytes_to_hash), ro_va),
MemoryRegion::new_writable(bytes_of_slice_mut(&mut hash_result), rw_va),
MemoryRegion::new_readonly(bytes1.as_bytes(), bytes_to_hash[0].vm_addr),
MemoryRegion::new_readonly(bytes2.as_bytes(), bytes_to_hash[1].vm_addr),
],
&config,
&SBPFVersion::V2,
)
.unwrap();
invoke_context.mock_set_remaining(
(invoke_context.get_compute_budget().sha256_base_cost
+ invoke_context.get_compute_budget().mem_op_base_cost.max(
invoke_context
.get_compute_budget()
.sha256_byte_cost
.saturating_mul((bytes1.len() + bytes2.len()) as u64 / 2),
))
* 4,
);
let result = SyscallHash::rust::<Sha256Hasher>(
&mut invoke_context,
ro_va,
ro_len,
rw_va,
0,
0,
&mut memory_mapping,
);
result.unwrap();
let hash_local = hashv(&[bytes1.as_ref(), bytes2.as_ref()]).to_bytes();
assert_eq!(hash_result, hash_local);
let result = SyscallHash::rust::<Sha256Hasher>(
&mut invoke_context,
ro_va - 1, // AccessViolation
ro_len,
rw_va,
0,
0,
&mut memory_mapping,
);
assert_access_violation!(result, ro_va - 1, 32);
let result = SyscallHash::rust::<Sha256Hasher>(
&mut invoke_context,
ro_va,
ro_len + 1, // AccessViolation
rw_va,
0,
0,
&mut memory_mapping,
);
assert_access_violation!(result, ro_va, 48);
let result = SyscallHash::rust::<Sha256Hasher>(
&mut invoke_context,
ro_va,
ro_len,
rw_va - 1, // AccessViolation
0,
0,
&mut memory_mapping,
);
assert_access_violation!(result, rw_va - 1, HASH_BYTES as u64);
let result = SyscallHash::rust::<Sha256Hasher>(
&mut invoke_context,
ro_va,
ro_len,
rw_va,
0,
0,
&mut memory_mapping,
);
assert_matches!(
result,
Result::Err(error) if error.downcast_ref::<InstructionError>().unwrap() == &InstructionError::ComputationalBudgetExceeded
);
}
#[test]
fn test_syscall_edwards_curve_point_validation() {
use solana_zk_token_sdk::curve25519::curve_syscall_traits::CURVE25519_EDWARDS;
let config = Config::default();
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let valid_bytes: [u8; 32] = [
201, 179, 241, 122, 180, 185, 239, 50, 183, 52, 221, 0, 153, 195, 43, 18, 22, 38, 187,
206, 179, 192, 210, 58, 53, 45, 150, 98, 89, 17, 158, 11,
];
let valid_bytes_va = 0x100000000;
let invalid_bytes: [u8; 32] = [
120, 140, 152, 233, 41, 227, 203, 27, 87, 115, 25, 251, 219, 5, 84, 148, 117, 38, 84,
60, 87, 144, 161, 146, 42, 34, 91, 155, 158, 189, 121, 79,
];
let invalid_bytes_va = 0x200000000;
let mut memory_mapping = MemoryMapping::new(
vec![
MemoryRegion::new_readonly(&valid_bytes, valid_bytes_va),
MemoryRegion::new_readonly(&invalid_bytes, invalid_bytes_va),
],
&config,
&SBPFVersion::V2,
)
.unwrap();
invoke_context.mock_set_remaining(
(invoke_context
.get_compute_budget()
.curve25519_edwards_validate_point_cost)
* 2,
);
let result = SyscallCurvePointValidation::rust(
&mut invoke_context,
CURVE25519_EDWARDS,
valid_bytes_va,
0,
0,
0,
&mut memory_mapping,
);
assert_eq!(0, result.unwrap());
let result = SyscallCurvePointValidation::rust(
&mut invoke_context,
CURVE25519_EDWARDS,
invalid_bytes_va,
0,
0,
0,
&mut memory_mapping,
);
assert_eq!(1, result.unwrap());
let result = SyscallCurvePointValidation::rust(
&mut invoke_context,
CURVE25519_EDWARDS,
valid_bytes_va,
0,
0,
0,
&mut memory_mapping,
);
assert_matches!(
result,
Result::Err(error) if error.downcast_ref::<InstructionError>().unwrap() == &InstructionError::ComputationalBudgetExceeded
);
}
#[test]
fn test_syscall_ristretto_curve_point_validation() {
use solana_zk_token_sdk::curve25519::curve_syscall_traits::CURVE25519_RISTRETTO;
let config = Config::default();
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let valid_bytes: [u8; 32] = [
226, 242, 174, 10, 106, 188, 78, 113, 168, 132, 169, 97, 197, 0, 81, 95, 88, 227, 11,
106, 165, 130, 221, 141, 182, 166, 89, 69, 224, 141, 45, 118,
];
let valid_bytes_va = 0x100000000;
let invalid_bytes: [u8; 32] = [
120, 140, 152, 233, 41, 227, 203, 27, 87, 115, 25, 251, 219, 5, 84, 148, 117, 38, 84,
60, 87, 144, 161, 146, 42, 34, 91, 155, 158, 189, 121, 79,
];
let invalid_bytes_va = 0x200000000;
let mut memory_mapping = MemoryMapping::new(
vec![
MemoryRegion::new_readonly(&valid_bytes, valid_bytes_va),
MemoryRegion::new_readonly(&invalid_bytes, invalid_bytes_va),
],
&config,
&SBPFVersion::V2,
)
.unwrap();
invoke_context.mock_set_remaining(
(invoke_context
.get_compute_budget()
.curve25519_ristretto_validate_point_cost)
* 2,
);
let result = SyscallCurvePointValidation::rust(
&mut invoke_context,
CURVE25519_RISTRETTO,
valid_bytes_va,
0,
0,
0,
&mut memory_mapping,
);
assert_eq!(0, result.unwrap());
let result = SyscallCurvePointValidation::rust(
&mut invoke_context,
CURVE25519_RISTRETTO,
invalid_bytes_va,
0,
0,
0,
&mut memory_mapping,
);
assert_eq!(1, result.unwrap());
let result = SyscallCurvePointValidation::rust(
&mut invoke_context,
CURVE25519_RISTRETTO,
valid_bytes_va,
0,
0,
0,
&mut memory_mapping,
);
assert_matches!(
result,
Result::Err(error) if error.downcast_ref::<InstructionError>().unwrap() == &InstructionError::ComputationalBudgetExceeded
);
}
#[test]
fn test_syscall_edwards_curve_group_ops() {
use solana_zk_token_sdk::curve25519::curve_syscall_traits::{
ADD, CURVE25519_EDWARDS, MUL, SUB,
};
let config = Config::default();
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let left_point: [u8; 32] = [
33, 124, 71, 170, 117, 69, 151, 247, 59, 12, 95, 125, 133, 166, 64, 5, 2, 27, 90, 27,
200, 167, 59, 164, 52, 54, 52, 200, 29, 13, 34, 213,
];
let left_point_va = 0x100000000;
let right_point: [u8; 32] = [
70, 222, 137, 221, 253, 204, 71, 51, 78, 8, 124, 1, 67, 200, 102, 225, 122, 228, 111,
183, 129, 14, 131, 210, 212, 95, 109, 246, 55, 10, 159, 91,
];
let right_point_va = 0x200000000;
let scalar: [u8; 32] = [
254, 198, 23, 138, 67, 243, 184, 110, 236, 115, 236, 205, 205, 215, 79, 114, 45, 250,
78, 137, 3, 107, 136, 237, 49, 126, 117, 223, 37, 191, 88, 6,
];
let scalar_va = 0x300000000;
let invalid_point: [u8; 32] = [
120, 140, 152, 233, 41, 227, 203, 27, 87, 115, 25, 251, 219, 5, 84, 148, 117, 38, 84,
60, 87, 144, 161, 146, 42, 34, 91, 155, 158, 189, 121, 79,
];
let invalid_point_va = 0x400000000;
let mut result_point: [u8; 32] = [0; 32];
let result_point_va = 0x500000000;
let mut memory_mapping = MemoryMapping::new(
vec![
MemoryRegion::new_readonly(bytes_of_slice(&left_point), left_point_va),
MemoryRegion::new_readonly(bytes_of_slice(&right_point), right_point_va),
MemoryRegion::new_readonly(bytes_of_slice(&scalar), scalar_va),
MemoryRegion::new_readonly(bytes_of_slice(&invalid_point), invalid_point_va),
MemoryRegion::new_writable(bytes_of_slice_mut(&mut result_point), result_point_va),
],
&config,
&SBPFVersion::V2,
)
.unwrap();
invoke_context.mock_set_remaining(
(invoke_context
.get_compute_budget()
.curve25519_edwards_add_cost
+ invoke_context
.get_compute_budget()
.curve25519_edwards_subtract_cost
+ invoke_context
.get_compute_budget()
.curve25519_edwards_multiply_cost)
* 2,
);
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_EDWARDS,
ADD,
left_point_va,
right_point_va,
result_point_va,
&mut memory_mapping,
);
assert_eq!(0, result.unwrap());
let expected_sum = [
7, 251, 187, 86, 186, 232, 57, 242, 193, 236, 49, 200, 90, 29, 254, 82, 46, 80, 83, 70,
244, 153, 23, 156, 2, 138, 207, 51, 165, 38, 200, 85,
];
assert_eq!(expected_sum, result_point);
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_EDWARDS,
ADD,
invalid_point_va,
right_point_va,
result_point_va,
&mut memory_mapping,
);
assert_eq!(1, result.unwrap());
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_EDWARDS,
SUB,
left_point_va,
right_point_va,
result_point_va,
&mut memory_mapping,
);
assert_eq!(0, result.unwrap());
let expected_difference = [
60, 87, 90, 68, 232, 25, 7, 172, 247, 120, 158, 104, 52, 127, 94, 244, 5, 79, 253, 15,
48, 69, 82, 134, 155, 70, 188, 81, 108, 95, 212, 9,
];
assert_eq!(expected_difference, result_point);
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_EDWARDS,
SUB,
invalid_point_va,
right_point_va,
result_point_va,
&mut memory_mapping,
);
assert_eq!(1, result.unwrap());
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_EDWARDS,
MUL,
scalar_va,
right_point_va,
result_point_va,
&mut memory_mapping,
);
result.unwrap();
let expected_product = [
64, 150, 40, 55, 80, 49, 217, 209, 105, 229, 181, 65, 241, 68, 2, 106, 220, 234, 211,
71, 159, 76, 156, 114, 242, 68, 147, 31, 243, 211, 191, 124,
];
assert_eq!(expected_product, result_point);
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_EDWARDS,
MUL,
scalar_va,
invalid_point_va,
result_point_va,
&mut memory_mapping,
);
assert_eq!(1, result.unwrap());
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_EDWARDS,
MUL,
scalar_va,
invalid_point_va,
result_point_va,
&mut memory_mapping,
);
assert_matches!(
result,
Result::Err(error) if error.downcast_ref::<InstructionError>().unwrap() == &InstructionError::ComputationalBudgetExceeded
);
}
#[test]
fn test_syscall_ristretto_curve_group_ops() {
use solana_zk_token_sdk::curve25519::curve_syscall_traits::{
ADD, CURVE25519_RISTRETTO, MUL, SUB,
};
let config = Config::default();
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let left_point: [u8; 32] = [
208, 165, 125, 204, 2, 100, 218, 17, 170, 194, 23, 9, 102, 156, 134, 136, 217, 190, 98,
34, 183, 194, 228, 153, 92, 11, 108, 103, 28, 57, 88, 15,
];
let left_point_va = 0x100000000;
let right_point: [u8; 32] = [
208, 241, 72, 163, 73, 53, 32, 174, 54, 194, 71, 8, 70, 181, 244, 199, 93, 147, 99,
231, 162, 127, 25, 40, 39, 19, 140, 132, 112, 212, 145, 108,
];
let right_point_va = 0x200000000;
let scalar: [u8; 32] = [
254, 198, 23, 138, 67, 243, 184, 110, 236, 115, 236, 205, 205, 215, 79, 114, 45, 250,
78, 137, 3, 107, 136, 237, 49, 126, 117, 223, 37, 191, 88, 6,
];
let scalar_va = 0x300000000;
let invalid_point: [u8; 32] = [
120, 140, 152, 233, 41, 227, 203, 27, 87, 115, 25, 251, 219, 5, 84, 148, 117, 38, 84,
60, 87, 144, 161, 146, 42, 34, 91, 155, 158, 189, 121, 79,
];
let invalid_point_va = 0x400000000;
let mut result_point: [u8; 32] = [0; 32];
let result_point_va = 0x500000000;
let mut memory_mapping = MemoryMapping::new(
vec![
MemoryRegion::new_readonly(bytes_of_slice(&left_point), left_point_va),
MemoryRegion::new_readonly(bytes_of_slice(&right_point), right_point_va),
MemoryRegion::new_readonly(bytes_of_slice(&scalar), scalar_va),
MemoryRegion::new_readonly(bytes_of_slice(&invalid_point), invalid_point_va),
MemoryRegion::new_writable(bytes_of_slice_mut(&mut result_point), result_point_va),
],
&config,
&SBPFVersion::V2,
)
.unwrap();
invoke_context.mock_set_remaining(
(invoke_context
.get_compute_budget()
.curve25519_ristretto_add_cost
+ invoke_context
.get_compute_budget()
.curve25519_ristretto_subtract_cost
+ invoke_context
.get_compute_budget()
.curve25519_ristretto_multiply_cost)
* 2,
);
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_RISTRETTO,
ADD,
left_point_va,
right_point_va,
result_point_va,
&mut memory_mapping,
);
assert_eq!(0, result.unwrap());
let expected_sum = [
78, 173, 9, 241, 180, 224, 31, 107, 176, 210, 144, 240, 118, 73, 70, 191, 128, 119,
141, 113, 125, 215, 161, 71, 49, 176, 87, 38, 180, 177, 39, 78,
];
assert_eq!(expected_sum, result_point);
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_RISTRETTO,
ADD,
invalid_point_va,
right_point_va,
result_point_va,
&mut memory_mapping,
);
assert_eq!(1, result.unwrap());
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_RISTRETTO,
SUB,
left_point_va,
right_point_va,
result_point_va,
&mut memory_mapping,
);
assert_eq!(0, result.unwrap());
let expected_difference = [
150, 72, 222, 61, 148, 79, 96, 130, 151, 176, 29, 217, 231, 211, 0, 215, 76, 86, 212,
146, 110, 128, 24, 151, 187, 144, 108, 233, 221, 208, 157, 52,
];
assert_eq!(expected_difference, result_point);
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_RISTRETTO,
SUB,
invalid_point_va,
right_point_va,
result_point_va,
&mut memory_mapping,
);
assert_eq!(1, result.unwrap());
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_RISTRETTO,
MUL,
scalar_va,
right_point_va,
result_point_va,
&mut memory_mapping,
);
result.unwrap();
let expected_product = [
4, 16, 46, 2, 53, 151, 201, 133, 117, 149, 232, 164, 119, 109, 136, 20, 153, 24, 124,
21, 101, 124, 80, 19, 119, 100, 77, 108, 65, 187, 228, 5,
];
assert_eq!(expected_product, result_point);
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_RISTRETTO,
MUL,
scalar_va,
invalid_point_va,
result_point_va,
&mut memory_mapping,
);
assert_eq!(1, result.unwrap());
let result = SyscallCurveGroupOps::rust(
&mut invoke_context,
CURVE25519_RISTRETTO,
MUL,
scalar_va,
invalid_point_va,
result_point_va,
&mut memory_mapping,
);
assert_matches!(
result,
Result::Err(error) if error.downcast_ref::<InstructionError>().unwrap() == &InstructionError::ComputationalBudgetExceeded
);
}
#[test]
fn test_syscall_multiscalar_multiplication() {
use solana_zk_token_sdk::curve25519::curve_syscall_traits::{
CURVE25519_EDWARDS, CURVE25519_RISTRETTO,
};
let config = Config::default();
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let scalar_a: [u8; 32] = [
254, 198, 23, 138, 67, 243, 184, 110, 236, 115, 236, 205, 205, 215, 79, 114, 45, 250,
78, 137, 3, 107, 136, 237, 49, 126, 117, 223, 37, 191, 88, 6,
];
let scalar_b: [u8; 32] = [
254, 198, 23, 138, 67, 243, 184, 110, 236, 115, 236, 205, 205, 215, 79, 114, 45, 250,
78, 137, 3, 107, 136, 237, 49, 126, 117, 223, 37, 191, 88, 6,
];
let scalars = [scalar_a, scalar_b];
let scalars_va = 0x100000000;
let edwards_point_x: [u8; 32] = [
252, 31, 230, 46, 173, 95, 144, 148, 158, 157, 63, 10, 8, 68, 58, 176, 142, 192, 168,
53, 61, 105, 194, 166, 43, 56, 246, 236, 28, 146, 114, 133,
];
let edwards_point_y: [u8; 32] = [
10, 111, 8, 236, 97, 189, 124, 69, 89, 176, 222, 39, 199, 253, 111, 11, 248, 186, 128,
90, 120, 128, 248, 210, 232, 183, 93, 104, 111, 150, 7, 241,
];
let edwards_points = [edwards_point_x, edwards_point_y];
let edwards_points_va = 0x200000000;
let ristretto_point_x: [u8; 32] = [
130, 35, 97, 25, 18, 199, 33, 239, 85, 143, 119, 111, 49, 51, 224, 40, 167, 185, 240,
179, 25, 194, 213, 41, 14, 155, 104, 18, 181, 197, 15, 112,
];
let ristretto_point_y: [u8; 32] = [
152, 156, 155, 197, 152, 232, 92, 206, 219, 159, 193, 134, 121, 128, 139, 36, 56, 191,
51, 143, 72, 204, 87, 76, 110, 124, 101, 96, 238, 158, 42, 108,
];
let ristretto_points = [ristretto_point_x, ristretto_point_y];
let ristretto_points_va = 0x300000000;
let mut result_point: [u8; 32] = [0; 32];
let result_point_va = 0x400000000;
let mut memory_mapping = MemoryMapping::new(
vec![
MemoryRegion::new_readonly(bytes_of_slice(&scalars), scalars_va),
MemoryRegion::new_readonly(bytes_of_slice(&edwards_points), edwards_points_va),
MemoryRegion::new_readonly(bytes_of_slice(&ristretto_points), ristretto_points_va),
MemoryRegion::new_writable(bytes_of_slice_mut(&mut result_point), result_point_va),
],
&config,
&SBPFVersion::V2,
)
.unwrap();
invoke_context.mock_set_remaining(
invoke_context
.get_compute_budget()
.curve25519_edwards_msm_base_cost
+ invoke_context
.get_compute_budget()
.curve25519_edwards_msm_incremental_cost
+ invoke_context
.get_compute_budget()
.curve25519_ristretto_msm_base_cost
+ invoke_context
.get_compute_budget()
.curve25519_ristretto_msm_incremental_cost,
);
let result = SyscallCurveMultiscalarMultiplication::rust(
&mut invoke_context,
CURVE25519_EDWARDS,
scalars_va,
edwards_points_va,
2,
result_point_va,
&mut memory_mapping,
);
assert_eq!(0, result.unwrap());
let expected_product = [
30, 174, 168, 34, 160, 70, 63, 166, 236, 18, 74, 144, 185, 222, 208, 243, 5, 54, 223,
172, 185, 75, 244, 26, 70, 18, 248, 46, 207, 184, 235, 60,
];
assert_eq!(expected_product, result_point);
let result = SyscallCurveMultiscalarMultiplication::rust(
&mut invoke_context,
CURVE25519_RISTRETTO,
scalars_va,
ristretto_points_va,
2,
result_point_va,
&mut memory_mapping,
);
assert_eq!(0, result.unwrap());
let expected_product = [
78, 120, 86, 111, 152, 64, 146, 84, 14, 236, 77, 147, 237, 190, 251, 241, 136, 167, 21,
94, 84, 118, 92, 140, 120, 81, 30, 246, 173, 140, 195, 86,
];
assert_eq!(expected_product, result_point);
}
fn create_filled_type<T: Default>(zero_init: bool) -> T {
let mut val = T::default();
let p = &mut val as *mut _ as *mut u8;
for i in 0..(size_of::<T>() as isize) {
unsafe {
*p.offset(i) = if zero_init { 0 } else { i as u8 };
}
}
val
}
fn are_bytes_equal<T>(first: &T, second: &T) -> bool {
let p_first = first as *const _ as *const u8;
let p_second = second as *const _ as *const u8;
for i in 0..(size_of::<T>() as isize) {
unsafe {
if *p_first.offset(i) != *p_second.offset(i) {
return false;
}
}
}
true
}
#[test]
#[allow(deprecated)]
fn test_syscall_get_sysvar() {
let config = Config::default();
let mut src_clock = create_filled_type::<Clock>(false);
src_clock.slot = 1;
src_clock.epoch_start_timestamp = 2;
src_clock.epoch = 3;
src_clock.leader_schedule_epoch = 4;
src_clock.unix_timestamp = 5;
let mut src_epochschedule = create_filled_type::<EpochSchedule>(false);
src_epochschedule.slots_per_epoch = 1;
src_epochschedule.leader_schedule_slot_offset = 2;
src_epochschedule.warmup = false;
src_epochschedule.first_normal_epoch = 3;
src_epochschedule.first_normal_slot = 4;
let mut src_fees = create_filled_type::<Fees>(false);
src_fees.fee_calculator = FeeCalculator {
lamports_per_signature: 1,
};
let mut src_rent = create_filled_type::<Rent>(false);
src_rent.lamports_per_byte_year = 1;
src_rent.exemption_threshold = 2.0;
src_rent.burn_percent = 3;
let mut src_rewards = create_filled_type::<EpochRewards>(false);
src_rewards.total_rewards = 100;
src_rewards.distributed_rewards = 10;
src_rewards.distribution_complete_block_height = 42;
let mut sysvar_cache = SysvarCache::default();
sysvar_cache.set_clock(src_clock.clone());
sysvar_cache.set_epoch_schedule(src_epochschedule.clone());
sysvar_cache.set_fees(src_fees.clone());
sysvar_cache.set_rent(src_rent.clone());
sysvar_cache.set_epoch_rewards(src_rewards);
let transaction_accounts = vec![
(
sysvar::clock::id(),
create_account_shared_data_for_test(&src_clock),
),
(
sysvar::epoch_schedule::id(),
create_account_shared_data_for_test(&src_epochschedule),
),
(
sysvar::fees::id(),
create_account_shared_data_for_test(&src_fees),
),
(
sysvar::rent::id(),
create_account_shared_data_for_test(&src_rent),
),
(
sysvar::epoch_rewards::id(),
create_account_shared_data_for_test(&src_rewards),
),
];
with_mock_invoke_context!(invoke_context, transaction_context, transaction_accounts);
// Test clock sysvar
{
let mut got_clock = Clock::default();
let got_clock_va = 0x100000000;
let mut memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_writable(
bytes_of_mut(&mut got_clock),
got_clock_va,
)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let result = SyscallGetClockSysvar::rust(
&mut invoke_context,
got_clock_va,
0,
0,
0,
0,
&mut memory_mapping,
);
result.unwrap();
assert_eq!(got_clock, src_clock);
let mut clean_clock = create_filled_type::<Clock>(true);
clean_clock.slot = src_clock.slot;
clean_clock.epoch_start_timestamp = src_clock.epoch_start_timestamp;
clean_clock.epoch = src_clock.epoch;
clean_clock.leader_schedule_epoch = src_clock.leader_schedule_epoch;
clean_clock.unix_timestamp = src_clock.unix_timestamp;
assert!(are_bytes_equal(&got_clock, &clean_clock));
}
// Test epoch_schedule sysvar
{
let mut got_epochschedule = EpochSchedule::default();
let got_epochschedule_va = 0x100000000;
let mut memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_writable(
bytes_of_mut(&mut got_epochschedule),
got_epochschedule_va,
)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let result = SyscallGetEpochScheduleSysvar::rust(
&mut invoke_context,
got_epochschedule_va,
0,
0,
0,
0,
&mut memory_mapping,
);
result.unwrap();
assert_eq!(got_epochschedule, src_epochschedule);
let mut clean_epochschedule = create_filled_type::<EpochSchedule>(true);
clean_epochschedule.slots_per_epoch = src_epochschedule.slots_per_epoch;
clean_epochschedule.leader_schedule_slot_offset =
src_epochschedule.leader_schedule_slot_offset;
clean_epochschedule.warmup = src_epochschedule.warmup;
clean_epochschedule.first_normal_epoch = src_epochschedule.first_normal_epoch;
clean_epochschedule.first_normal_slot = src_epochschedule.first_normal_slot;
assert!(are_bytes_equal(&got_epochschedule, &clean_epochschedule));
}
// Test fees sysvar
{
let mut got_fees = Fees::default();
let got_fees_va = 0x100000000;
let mut memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_writable(
bytes_of_mut(&mut got_fees),
got_fees_va,
)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let result = SyscallGetFeesSysvar::rust(
&mut invoke_context,
got_fees_va,
0,
0,
0,
0,
&mut memory_mapping,
);
result.unwrap();
assert_eq!(got_fees, src_fees);
let mut clean_fees = create_filled_type::<Fees>(true);
clean_fees.fee_calculator = src_fees.fee_calculator;
assert!(are_bytes_equal(&got_fees, &clean_fees));
}
// Test rent sysvar
{
let mut got_rent = create_filled_type::<Rent>(true);
let got_rent_va = 0x100000000;
let mut memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_writable(
bytes_of_mut(&mut got_rent),
got_rent_va,
)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let result = SyscallGetRentSysvar::rust(
&mut invoke_context,
got_rent_va,
0,
0,
0,
0,
&mut memory_mapping,
);
result.unwrap();
assert_eq!(got_rent, src_rent);
let mut clean_rent = create_filled_type::<Rent>(true);
clean_rent.lamports_per_byte_year = src_rent.lamports_per_byte_year;
clean_rent.exemption_threshold = src_rent.exemption_threshold;
clean_rent.burn_percent = src_rent.burn_percent;
assert!(are_bytes_equal(&got_rent, &clean_rent));
}
// Test epoch rewards sysvar
{
let mut got_rewards = create_filled_type::<EpochRewards>(true);
let got_rewards_va = 0x100000000;
let mut memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_writable(
bytes_of_mut(&mut got_rewards),
got_rewards_va,
)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let result = SyscallGetEpochRewardsSysvar::rust(
&mut invoke_context,
got_rewards_va,
0,
0,
0,
0,
&mut memory_mapping,
);
result.unwrap();
assert_eq!(got_rewards, src_rewards);
let mut clean_rewards = create_filled_type::<EpochRewards>(true);
clean_rewards.total_rewards = src_rewards.total_rewards;
clean_rewards.distributed_rewards = src_rewards.distributed_rewards;
clean_rewards.distribution_complete_block_height =
src_rewards.distribution_complete_block_height;
assert!(are_bytes_equal(&got_rewards, &clean_rewards));
}
}
type BuiltinFunctionRustInterface<'a> = fn(
&mut InvokeContext<'a>,
u64,
u64,
u64,
u64,
u64,
&mut MemoryMapping,
) -> Result<u64, Box<dyn std::error::Error>>;
fn call_program_address_common<'a, 'b: 'a>(
invoke_context: &'a mut InvokeContext<'b>,
seeds: &[&[u8]],
program_id: &Pubkey,
overlap_outputs: bool,
syscall: BuiltinFunctionRustInterface<'b>,
) -> Result<(Pubkey, u8), Error> {
const SEEDS_VA: u64 = 0x100000000;
const PROGRAM_ID_VA: u64 = 0x200000000;
const ADDRESS_VA: u64 = 0x300000000;
const BUMP_SEED_VA: u64 = 0x400000000;
const SEED_VA: u64 = 0x500000000;
let config = Config::default();
let mut address = Pubkey::default();
let mut bump_seed = 0;
let mut regions = vec![
MemoryRegion::new_readonly(bytes_of(program_id), PROGRAM_ID_VA),
MemoryRegion::new_writable(bytes_of_mut(&mut address), ADDRESS_VA),
MemoryRegion::new_writable(bytes_of_mut(&mut bump_seed), BUMP_SEED_VA),
];
let mut mock_slices = Vec::with_capacity(seeds.len());
for (i, seed) in seeds.iter().enumerate() {
let vm_addr = SEED_VA.saturating_add((i as u64).saturating_mul(0x100000000));
let mock_slice = MockSlice {
vm_addr,
len: seed.len(),
};
mock_slices.push(mock_slice);
regions.push(MemoryRegion::new_readonly(bytes_of_slice(seed), vm_addr));
}
regions.push(MemoryRegion::new_readonly(
bytes_of_slice(&mock_slices),
SEEDS_VA,
));
let mut memory_mapping = MemoryMapping::new(regions, &config, &SBPFVersion::V2).unwrap();
let result = syscall(
invoke_context,
SEEDS_VA,
seeds.len() as u64,
PROGRAM_ID_VA,
ADDRESS_VA,
if overlap_outputs {
ADDRESS_VA
} else {
BUMP_SEED_VA
},
&mut memory_mapping,
);
result.map(|_| (address, bump_seed))
}
fn create_program_address(
invoke_context: &mut InvokeContext,
seeds: &[&[u8]],
address: &Pubkey,
) -> Result<Pubkey, Error> {
let (address, _) = call_program_address_common(
invoke_context,
seeds,
address,
false,
SyscallCreateProgramAddress::rust,
)?;
Ok(address)
}
fn try_find_program_address(
invoke_context: &mut InvokeContext,
seeds: &[&[u8]],
address: &Pubkey,
) -> Result<(Pubkey, u8), Error> {
call_program_address_common(
invoke_context,
seeds,
address,
false,
SyscallTryFindProgramAddress::rust,
)
}
#[test]
fn test_set_and_get_return_data() {
const SRC_VA: u64 = 0x100000000;
const DST_VA: u64 = 0x200000000;
const PROGRAM_ID_VA: u64 = 0x300000000;
let data = vec![42; 24];
let mut data_buffer = vec![0; 16];
let mut id_buffer = vec![0; 32];
let config = Config::default();
let mut memory_mapping = MemoryMapping::new(
vec![
MemoryRegion::new_readonly(&data, SRC_VA),
MemoryRegion::new_writable(&mut data_buffer, DST_VA),
MemoryRegion::new_writable(&mut id_buffer, PROGRAM_ID_VA),
],
&config,
&SBPFVersion::V2,
)
.unwrap();
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let result = SyscallSetReturnData::rust(
&mut invoke_context,
SRC_VA,
data.len() as u64,
0,
0,
0,
&mut memory_mapping,
);
assert_eq!(result.unwrap(), 0);
let result = SyscallGetReturnData::rust(
&mut invoke_context,
DST_VA,
data_buffer.len() as u64,
PROGRAM_ID_VA,
0,
0,
&mut memory_mapping,
);
assert_eq!(result.unwrap() as usize, data.len());
assert_eq!(data.get(0..data_buffer.len()).unwrap(), data_buffer);
assert_eq!(id_buffer, program_id.to_bytes());
let result = SyscallGetReturnData::rust(
&mut invoke_context,
PROGRAM_ID_VA,
data_buffer.len() as u64,
PROGRAM_ID_VA,
0,
0,
&mut memory_mapping,
);
assert_matches!(
result,
Result::Err(error) if error.downcast_ref::<SyscallError>().unwrap() == &SyscallError::CopyOverlapping
);
}
#[test]
fn test_syscall_sol_get_processed_sibling_instruction() {
let transaction_accounts = (0..9)
.map(|_| {
(
Pubkey::new_unique(),
AccountSharedData::new(0, 0, &bpf_loader::id()),
)
})
.collect::<Vec<_>>();
let instruction_trace = [1, 2, 3, 2, 2, 3, 4, 3];
with_mock_invoke_context!(invoke_context, transaction_context, transaction_accounts);
for (index_in_trace, stack_height) in instruction_trace.into_iter().enumerate() {
while stack_height
<= invoke_context
.transaction_context
.get_instruction_context_stack_height()
{
invoke_context.transaction_context.pop().unwrap();
}
if stack_height
> invoke_context
.transaction_context
.get_instruction_context_stack_height()
{
let instruction_accounts = [InstructionAccount {
index_in_transaction: index_in_trace.saturating_add(1) as IndexOfAccount,
index_in_caller: 0, // This is incorrect / inconsistent but not required
index_in_callee: 0,
is_signer: false,
is_writable: false,
}];
invoke_context
.transaction_context
.get_next_instruction_context()
.unwrap()
.configure(&[0], &instruction_accounts, &[index_in_trace as u8]);
invoke_context.transaction_context.push().unwrap();
}
}
let syscall_base_cost = invoke_context.get_compute_budget().syscall_base_cost;
const VM_BASE_ADDRESS: u64 = 0x100000000;
const META_OFFSET: usize = 0;
const PROGRAM_ID_OFFSET: usize =
META_OFFSET + std::mem::size_of::<ProcessedSiblingInstruction>();
const DATA_OFFSET: usize = PROGRAM_ID_OFFSET + std::mem::size_of::<Pubkey>();
const ACCOUNTS_OFFSET: usize = DATA_OFFSET + 0x100;
const END_OFFSET: usize = ACCOUNTS_OFFSET + std::mem::size_of::<AccountInfo>() * 4;
let mut memory = [0u8; END_OFFSET];
let config = Config::default();
let mut memory_mapping = MemoryMapping::new(
vec![MemoryRegion::new_writable(&mut memory, VM_BASE_ADDRESS)],
&config,
&SBPFVersion::V2,
)
.unwrap();
let processed_sibling_instruction = translate_type_mut::<ProcessedSiblingInstruction>(
&memory_mapping,
VM_BASE_ADDRESS,
true,
)
.unwrap();
processed_sibling_instruction.data_len = 1;
processed_sibling_instruction.accounts_len = 1;
let program_id = translate_type_mut::<Pubkey>(
&memory_mapping,
VM_BASE_ADDRESS.saturating_add(PROGRAM_ID_OFFSET as u64),
true,
)
.unwrap();
let data = translate_slice_mut::<u8>(
&memory_mapping,
VM_BASE_ADDRESS.saturating_add(DATA_OFFSET as u64),
processed_sibling_instruction.data_len,
true,
)
.unwrap();
let accounts = translate_slice_mut::<AccountMeta>(
&memory_mapping,
VM_BASE_ADDRESS.saturating_add(ACCOUNTS_OFFSET as u64),
processed_sibling_instruction.accounts_len,
true,
)
.unwrap();
invoke_context.mock_set_remaining(syscall_base_cost);
let result = SyscallGetProcessedSiblingInstruction::rust(
&mut invoke_context,
0,
VM_BASE_ADDRESS.saturating_add(META_OFFSET as u64),
VM_BASE_ADDRESS.saturating_add(PROGRAM_ID_OFFSET as u64),
VM_BASE_ADDRESS.saturating_add(DATA_OFFSET as u64),
VM_BASE_ADDRESS.saturating_add(ACCOUNTS_OFFSET as u64),
&mut memory_mapping,
);
assert_eq!(result.unwrap(), 1);
{
let transaction_context = &invoke_context.transaction_context;
assert_eq!(processed_sibling_instruction.data_len, 1);
assert_eq!(processed_sibling_instruction.accounts_len, 1);
assert_eq!(
program_id,
transaction_context.get_key_of_account_at_index(0).unwrap(),
);
assert_eq!(data, &[5]);
assert_eq!(
accounts,
&[AccountMeta {
pubkey: *transaction_context.get_key_of_account_at_index(6).unwrap(),
is_signer: false,
is_writable: false
}]
);
}
invoke_context.mock_set_remaining(syscall_base_cost);
let result = SyscallGetProcessedSiblingInstruction::rust(
&mut invoke_context,
1,
VM_BASE_ADDRESS.saturating_add(META_OFFSET as u64),
VM_BASE_ADDRESS.saturating_add(PROGRAM_ID_OFFSET as u64),
VM_BASE_ADDRESS.saturating_add(DATA_OFFSET as u64),
VM_BASE_ADDRESS.saturating_add(ACCOUNTS_OFFSET as u64),
&mut memory_mapping,
);
assert_eq!(result.unwrap(), 0);
invoke_context.mock_set_remaining(syscall_base_cost);
let result = SyscallGetProcessedSiblingInstruction::rust(
&mut invoke_context,
0,
VM_BASE_ADDRESS.saturating_add(META_OFFSET as u64),
VM_BASE_ADDRESS.saturating_add(META_OFFSET as u64),
VM_BASE_ADDRESS.saturating_add(META_OFFSET as u64),
VM_BASE_ADDRESS.saturating_add(META_OFFSET as u64),
&mut memory_mapping,
);
assert_matches!(
result,
Result::Err(error) if error.downcast_ref::<SyscallError>().unwrap() == &SyscallError::CopyOverlapping
);
}
#[test]
fn test_create_program_address() {
// These tests duplicate the direct tests in solana_program::pubkey
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let address = bpf_loader_upgradeable::id();
let exceeded_seed = &[127; MAX_SEED_LEN + 1];
assert_matches!(
create_program_address(&mut invoke_context, &[exceeded_seed], &address),
Result::Err(error) if error.downcast_ref::<SyscallError>().unwrap() == &SyscallError::BadSeeds(PubkeyError::MaxSeedLengthExceeded)
);
assert_matches!(
create_program_address(
&mut invoke_context,
&[b"short_seed", exceeded_seed],
&address,
),
Result::Err(error) if error.downcast_ref::<SyscallError>().unwrap() == &SyscallError::BadSeeds(PubkeyError::MaxSeedLengthExceeded)
);
let max_seed = &[0; MAX_SEED_LEN];
assert!(create_program_address(&mut invoke_context, &[max_seed], &address).is_ok());
let exceeded_seeds: &[&[u8]] = &[
&[1],
&[2],
&[3],
&[4],
&[5],
&[6],
&[7],
&[8],
&[9],
&[10],
&[11],
&[12],
&[13],
&[14],
&[15],
&[16],
];
assert!(create_program_address(&mut invoke_context, exceeded_seeds, &address).is_ok());
let max_seeds: &[&[u8]] = &[
&[1],
&[2],
&[3],
&[4],
&[5],
&[6],
&[7],
&[8],
&[9],
&[10],
&[11],
&[12],
&[13],
&[14],
&[15],
&[16],
&[17],
];
assert_matches!(
create_program_address(&mut invoke_context, max_seeds, &address),
Result::Err(error) if error.downcast_ref::<SyscallError>().unwrap() == &SyscallError::BadSeeds(PubkeyError::MaxSeedLengthExceeded)
);
assert_eq!(
create_program_address(&mut invoke_context, &[b"", &[1]], &address).unwrap(),
"BwqrghZA2htAcqq8dzP1WDAhTXYTYWj7CHxF5j7TDBAe"
.parse()
.unwrap(),
);
assert_eq!(
create_program_address(&mut invoke_context, &["☉".as_ref(), &[0]], &address).unwrap(),
"13yWmRpaTR4r5nAktwLqMpRNr28tnVUZw26rTvPSSB19"
.parse()
.unwrap(),
);
assert_eq!(
create_program_address(&mut invoke_context, &[b"Talking", b"Squirrels"], &address)
.unwrap(),
"2fnQrngrQT4SeLcdToJAD96phoEjNL2man2kfRLCASVk"
.parse()
.unwrap(),
);
let public_key = Pubkey::from_str("SeedPubey1111111111111111111111111111111111").unwrap();
assert_eq!(
create_program_address(&mut invoke_context, &[public_key.as_ref(), &[1]], &address)
.unwrap(),
"976ymqVnfE32QFe6NfGDctSvVa36LWnvYxhU6G2232YL"
.parse()
.unwrap(),
);
assert_ne!(
create_program_address(&mut invoke_context, &[b"Talking", b"Squirrels"], &address)
.unwrap(),
create_program_address(&mut invoke_context, &[b"Talking"], &address).unwrap(),
);
invoke_context.mock_set_remaining(0);
assert_matches!(
create_program_address(&mut invoke_context, &[b"", &[1]], &address),
Result::Err(error) if error.downcast_ref::<InstructionError>().unwrap() == &InstructionError::ComputationalBudgetExceeded
);
}
#[test]
fn test_find_program_address() {
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
let cost = invoke_context
.get_compute_budget()
.create_program_address_units;
let address = bpf_loader_upgradeable::id();
let max_tries = 256; // one per seed
for _ in 0..1_000 {
let address = Pubkey::new_unique();
invoke_context.mock_set_remaining(cost * max_tries);
let (found_address, bump_seed) =
try_find_program_address(&mut invoke_context, &[b"Lil'", b"Bits"], &address)
.unwrap();
assert_eq!(
found_address,
create_program_address(
&mut invoke_context,
&[b"Lil'", b"Bits", &[bump_seed]],
&address,
)
.unwrap()
);
}
let seeds: &[&[u8]] = &[b""];
invoke_context.mock_set_remaining(cost * max_tries);
let (_, bump_seed) =
try_find_program_address(&mut invoke_context, seeds, &address).unwrap();
invoke_context.mock_set_remaining(cost * (max_tries - bump_seed as u64));
try_find_program_address(&mut invoke_context, seeds, &address).unwrap();
invoke_context.mock_set_remaining(cost * (max_tries - bump_seed as u64 - 1));
assert_matches!(
try_find_program_address(&mut invoke_context, seeds, &address),
Result::Err(error) if error.downcast_ref::<InstructionError>().unwrap() == &InstructionError::ComputationalBudgetExceeded
);
let exceeded_seed = &[127; MAX_SEED_LEN + 1];
invoke_context.mock_set_remaining(cost * (max_tries - 1));
assert_matches!(
try_find_program_address(&mut invoke_context, &[exceeded_seed], &address),
Result::Err(error) if error.downcast_ref::<SyscallError>().unwrap() == &SyscallError::BadSeeds(PubkeyError::MaxSeedLengthExceeded)
);
let exceeded_seeds: &[&[u8]] = &[
&[1],
&[2],
&[3],
&[4],
&[5],
&[6],
&[7],
&[8],
&[9],
&[10],
&[11],
&[12],
&[13],
&[14],
&[15],
&[16],
&[17],
];
invoke_context.mock_set_remaining(cost * (max_tries - 1));
assert_matches!(
try_find_program_address(&mut invoke_context, exceeded_seeds, &address),
Result::Err(error) if error.downcast_ref::<SyscallError>().unwrap() == &SyscallError::BadSeeds(PubkeyError::MaxSeedLengthExceeded)
);
assert_matches!(
call_program_address_common(
&mut invoke_context,
seeds,
&address,
true,
SyscallTryFindProgramAddress::rust,
),
Result::Err(error) if error.downcast_ref::<SyscallError>().unwrap() == &SyscallError::CopyOverlapping
);
}
#[test]
fn test_syscall_big_mod_exp() {
let config = Config::default();
prepare_mockup!(invoke_context, program_id, bpf_loader::id());
const VADDR_PARAMS: u64 = 0x100000000;
const MAX_LEN: u64 = 512;
const INV_LEN: u64 = MAX_LEN + 1;
let data: [u8; INV_LEN as usize] = [0; INV_LEN as usize];
const VADDR_DATA: u64 = 0x200000000;
let mut data_out: [u8; INV_LEN as usize] = [0; INV_LEN as usize];
const VADDR_OUT: u64 = 0x300000000;
// Test that SyscallBigModExp succeeds with the maximum param size
{
let params_max_len = BigModExpParams {
base: VADDR_DATA as *const u8,
base_len: MAX_LEN,
exponent: VADDR_DATA as *const u8,
exponent_len: MAX_LEN,
modulus: VADDR_DATA as *const u8,
modulus_len: MAX_LEN,
};
let mut memory_mapping = MemoryMapping::new(
vec![
MemoryRegion::new_readonly(bytes_of(&params_max_len), VADDR_PARAMS),
MemoryRegion::new_readonly(&data, VADDR_DATA),
MemoryRegion::new_writable(&mut data_out, VADDR_OUT),
],
&config,
&SBPFVersion::V2,
)
.unwrap();
let budget = invoke_context.get_compute_budget();
invoke_context.mock_set_remaining(
budget.syscall_base_cost
+ (MAX_LEN * MAX_LEN) / budget.big_modular_exponentiation_cost,
);
let result = SyscallBigModExp::rust(
&mut invoke_context,
VADDR_PARAMS,
VADDR_OUT,
0,
0,
0,
&mut memory_mapping,
);
assert_eq!(result.unwrap(), 0);
}
// Test that SyscallBigModExp fails when the maximum param size is exceeded
{
let params_inv_len = BigModExpParams {
base: VADDR_DATA as *const u8,
base_len: INV_LEN,
exponent: VADDR_DATA as *const u8,
exponent_len: INV_LEN,
modulus: VADDR_DATA as *const u8,
modulus_len: INV_LEN,
};
let mut memory_mapping = MemoryMapping::new(
vec![
MemoryRegion::new_readonly(bytes_of(&params_inv_len), VADDR_PARAMS),
MemoryRegion::new_readonly(&data, VADDR_DATA),
MemoryRegion::new_writable(&mut data_out, VADDR_OUT),
],
&config,
&SBPFVersion::V2,
)
.unwrap();
let budget = invoke_context.get_compute_budget();
invoke_context.mock_set_remaining(
budget.syscall_base_cost
+ (INV_LEN * INV_LEN) / budget.big_modular_exponentiation_cost,
);
let result = SyscallBigModExp::rust(
&mut invoke_context,
VADDR_PARAMS,
VADDR_OUT,
0,
0,
0,
&mut memory_mapping,
);
assert_matches!(
result,
Result::Err(error) if error.downcast_ref::<SyscallError>().unwrap() == &SyscallError::InvalidLength
);
}
}
#[test]
fn test_check_type_assumptions() {
check_type_assumptions();
}
fn bytes_of<T>(val: &T) -> &[u8] {
let size = mem::size_of::<T>();
unsafe { slice::from_raw_parts(std::slice::from_ref(val).as_ptr().cast(), size) }
}
fn bytes_of_mut<T>(val: &mut T) -> &mut [u8] {
let size = mem::size_of::<T>();
unsafe { slice::from_raw_parts_mut(slice::from_mut(val).as_mut_ptr().cast(), size) }
}
pub fn bytes_of_slice<T>(val: &[T]) -> &[u8] {
let size = val.len().wrapping_mul(mem::size_of::<T>());
unsafe { slice::from_raw_parts(val.as_ptr().cast(), size) }
}
pub fn bytes_of_slice_mut<T>(val: &mut [T]) -> &mut [u8] {
let size = val.len().wrapping_mul(mem::size_of::<T>());
unsafe { slice::from_raw_parts_mut(val.as_mut_ptr().cast(), size) }
}
#[test]
fn test_address_is_aligned() {
for address in 0..std::mem::size_of::<u64>() {
assert_eq!(address_is_aligned::<u64>(address as u64), address == 0);
}
}
}
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