1233 lines
41 KiB
Rust
1233 lines
41 KiB
Rust
//! The `sigverify` module provides digital signature verification functions.
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//! By default, signatures are verified in parallel using all available CPU
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//! cores. When perf-libs are available signature verification is offloaded
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//! to the GPU.
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//!
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use crate::cuda_runtime::PinnedVec;
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use crate::packet::{Packet, Packets};
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use crate::perf_libs;
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use crate::recycler::Recycler;
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use rayon::ThreadPool;
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use solana_metrics::inc_new_counter_debug;
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use solana_rayon_threadlimit::get_thread_count;
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use solana_sdk::hash::Hash;
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use solana_sdk::message::{MESSAGE_HEADER_LENGTH, MESSAGE_VERSION_PREFIX};
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use solana_sdk::pubkey::Pubkey;
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use solana_sdk::short_vec::decode_shortu16_len;
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use solana_sdk::signature::Signature;
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#[cfg(test)]
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use solana_sdk::transaction::Transaction;
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use std::convert::TryFrom;
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use std::mem::size_of;
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// Representing key tKeYE4wtowRb8yRroZShTipE18YVnqwXjsSAoNsFU6g
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const TRACER_KEY_BYTES: [u8; 32] = [
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13, 37, 180, 170, 252, 137, 36, 194, 183, 143, 161, 193, 201, 207, 211, 23, 189, 93, 33, 110,
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155, 90, 30, 39, 116, 115, 238, 38, 126, 21, 232, 133,
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];
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const TRACER_KEY: Pubkey = Pubkey::new_from_array(TRACER_KEY_BYTES);
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lazy_static! {
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static ref PAR_THREAD_POOL: ThreadPool = rayon::ThreadPoolBuilder::new()
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.num_threads(get_thread_count())
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.thread_name(|ix| format!("sigverify_{}", ix))
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.build()
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.unwrap();
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}
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pub type TxOffset = PinnedVec<u32>;
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type TxOffsets = (TxOffset, TxOffset, TxOffset, TxOffset, Vec<Vec<u32>>);
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#[derive(Debug, PartialEq, Eq)]
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struct PacketOffsets {
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pub sig_len: u32,
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pub sig_start: u32,
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pub msg_start: u32,
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pub pubkey_start: u32,
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pub pubkey_len: u32,
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}
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impl PacketOffsets {
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pub fn new(
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sig_len: u32,
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sig_start: u32,
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msg_start: u32,
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pubkey_start: u32,
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pubkey_len: u32,
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) -> Self {
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Self {
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sig_len,
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sig_start,
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msg_start,
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pubkey_start,
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pubkey_len,
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}
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}
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}
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#[derive(Debug, PartialEq)]
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pub enum PacketError {
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InvalidLen,
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InvalidPubkeyLen,
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InvalidShortVec,
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InvalidSignatureLen,
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MismatchSignatureLen,
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PayerNotWritable,
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InvalidProgramIdIndex,
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InvalidProgramLen,
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UnsupportedVersion,
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}
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impl std::convert::From<std::boxed::Box<bincode::ErrorKind>> for PacketError {
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fn from(_e: std::boxed::Box<bincode::ErrorKind>) -> PacketError {
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PacketError::InvalidShortVec
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}
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}
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impl std::convert::From<std::num::TryFromIntError> for PacketError {
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fn from(_e: std::num::TryFromIntError) -> Self {
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Self::InvalidLen
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}
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}
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pub fn init() {
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if let Some(api) = perf_libs::api() {
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unsafe {
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(api.ed25519_set_verbose)(true);
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assert!((api.ed25519_init)(), "ed25519_init() failed");
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(api.ed25519_set_verbose)(false);
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}
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}
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}
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fn verify_packet(packet: &mut Packet) {
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let packet_offsets = get_packet_offsets(packet, 0);
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let mut sig_start = packet_offsets.sig_start as usize;
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let mut pubkey_start = packet_offsets.pubkey_start as usize;
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let msg_start = packet_offsets.msg_start as usize;
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// If this packet was already marked as discard, drop it
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if packet.meta.discard {
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return;
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}
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if packet_offsets.sig_len == 0 {
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packet.meta.discard = true;
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return;
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}
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if packet.meta.size <= msg_start {
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packet.meta.discard = true;
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return;
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}
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let msg_end = packet.meta.size;
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for _ in 0..packet_offsets.sig_len {
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let pubkey_end = pubkey_start.saturating_add(size_of::<Pubkey>());
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let sig_end = sig_start.saturating_add(size_of::<Signature>());
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// get_packet_offsets should ensure pubkey_end and sig_end do
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// not overflow packet.meta.size
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let signature = Signature::new(&packet.data[sig_start..sig_end]);
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if !signature.verify(
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&packet.data[pubkey_start..pubkey_end],
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&packet.data[msg_start..msg_end],
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) {
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packet.meta.discard = true;
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return;
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}
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// Check for tracer pubkey
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if !packet.meta.is_tracer_tx
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&& &packet.data[pubkey_start..pubkey_end] == TRACER_KEY.as_ref()
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{
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packet.meta.is_tracer_tx = true;
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}
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pubkey_start = pubkey_end;
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sig_start = sig_end;
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}
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}
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pub fn batch_size(batches: &[Packets]) -> usize {
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batches.iter().map(|p| p.packets.len()).sum()
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}
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// internal function to be unit-tested; should be used only by get_packet_offsets
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fn do_get_packet_offsets(
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packet: &Packet,
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current_offset: usize,
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) -> Result<PacketOffsets, PacketError> {
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// should have at least 1 signature and sig lengths
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let _ = 1usize
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.checked_add(size_of::<Signature>())
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.filter(|v| *v <= packet.meta.size)
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.ok_or(PacketError::InvalidLen)?;
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// read the length of Transaction.signatures (serialized with short_vec)
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let (sig_len_untrusted, sig_size) =
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decode_shortu16_len(&packet.data).map_err(|_| PacketError::InvalidShortVec)?;
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// Using msg_start_offset which is based on sig_len_untrusted introduces uncertainty.
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// Ultimately, the actual sigverify will determine the uncertainty.
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let msg_start_offset = sig_len_untrusted
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.checked_mul(size_of::<Signature>())
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.and_then(|v| v.checked_add(sig_size))
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.ok_or(PacketError::InvalidLen)?;
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// Determine the start of the message header by checking the message prefix bit.
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let msg_header_offset = {
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// Packet should have data for prefix bit
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if msg_start_offset >= packet.meta.size {
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return Err(PacketError::InvalidSignatureLen);
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}
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// next byte indicates if the transaction is versioned. If the top bit
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// is set, the remaining bits encode a version number. If the top bit is
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// not set, this byte is the first byte of the message header.
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let message_prefix = packet.data[msg_start_offset];
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if message_prefix & MESSAGE_VERSION_PREFIX != 0 {
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let version = message_prefix & !MESSAGE_VERSION_PREFIX;
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match version {
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0 => {
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// header begins immediately after prefix byte
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msg_start_offset
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.checked_add(1)
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.ok_or(PacketError::InvalidLen)?
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}
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// currently only v0 is supported
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_ => return Err(PacketError::UnsupportedVersion),
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}
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} else {
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msg_start_offset
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}
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};
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let msg_header_offset_plus_one = msg_header_offset
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.checked_add(1)
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.ok_or(PacketError::InvalidLen)?;
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// Packet should have data at least for MessageHeader and 1 byte for Message.account_keys.len
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let _ = msg_header_offset_plus_one
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.checked_add(MESSAGE_HEADER_LENGTH)
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.filter(|v| *v <= packet.meta.size)
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.ok_or(PacketError::InvalidSignatureLen)?;
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// read MessageHeader.num_required_signatures (serialized with u8)
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let sig_len_maybe_trusted = packet.data[msg_header_offset];
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let message_account_keys_len_offset = msg_header_offset
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.checked_add(MESSAGE_HEADER_LENGTH)
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.ok_or(PacketError::InvalidSignatureLen)?;
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// This reads and compares the MessageHeader num_required_signatures and
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// num_readonly_signed_accounts bytes. If num_required_signatures is not larger than
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// num_readonly_signed_accounts, the first account is not debitable, and cannot be charged
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// required transaction fees.
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let readonly_signer_offset = msg_header_offset_plus_one;
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if sig_len_maybe_trusted <= packet.data[readonly_signer_offset] {
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return Err(PacketError::PayerNotWritable);
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}
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if usize::from(sig_len_maybe_trusted) != sig_len_untrusted {
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return Err(PacketError::MismatchSignatureLen);
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}
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// read the length of Message.account_keys (serialized with short_vec)
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let (pubkey_len, pubkey_len_size) =
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decode_shortu16_len(&packet.data[message_account_keys_len_offset..])
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.map_err(|_| PacketError::InvalidShortVec)?;
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let pubkey_start = message_account_keys_len_offset
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.checked_add(pubkey_len_size)
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.ok_or(PacketError::InvalidPubkeyLen)?;
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let _ = pubkey_len
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.checked_mul(size_of::<Pubkey>())
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.and_then(|v| v.checked_add(pubkey_start))
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.filter(|v| *v <= packet.meta.size)
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.ok_or(PacketError::InvalidPubkeyLen)?;
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if pubkey_len < sig_len_untrusted {
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return Err(PacketError::InvalidPubkeyLen);
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}
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let sig_start = current_offset
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.checked_add(sig_size)
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.ok_or(PacketError::InvalidLen)?;
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let msg_start = current_offset
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.checked_add(msg_start_offset)
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.ok_or(PacketError::InvalidLen)?;
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let pubkey_start = current_offset
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.checked_add(pubkey_start)
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.ok_or(PacketError::InvalidLen)?;
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Ok(PacketOffsets::new(
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u32::try_from(sig_len_untrusted)?,
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u32::try_from(sig_start)?,
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u32::try_from(msg_start)?,
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u32::try_from(pubkey_start)?,
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u32::try_from(pubkey_len)?,
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))
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}
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fn get_packet_offsets(packet: &mut Packet, current_offset: usize) -> PacketOffsets {
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let unsanitized_packet_offsets = do_get_packet_offsets(packet, current_offset);
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if let Ok(offsets) = unsanitized_packet_offsets {
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check_for_simple_vote_transaction(packet, &offsets, current_offset).ok();
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offsets
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} else {
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// force sigverify to fail by returning zeros
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PacketOffsets::new(0, 0, 0, 0, 0)
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}
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}
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fn check_for_simple_vote_transaction(
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packet: &mut Packet,
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packet_offsets: &PacketOffsets,
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current_offset: usize,
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) -> Result<(), PacketError> {
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// vote could have 1 or 2 sigs; zero sig has already been excluded at
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// do_get_packet_offsets.
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if packet_offsets.sig_len > 2 {
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return Err(PacketError::InvalidSignatureLen);
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}
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let pubkey_start = (packet_offsets.pubkey_start as usize)
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.checked_sub(current_offset)
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.ok_or(PacketError::InvalidLen)?;
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let instructions_len_offset = (packet_offsets.pubkey_len as usize)
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.checked_mul(size_of::<Pubkey>())
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.and_then(|v| v.checked_add(pubkey_start))
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.and_then(|v| v.checked_add(size_of::<Hash>()))
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.ok_or(PacketError::InvalidLen)?;
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// Packet should have at least 1 more byte for instructions.len
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let _ = instructions_len_offset
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.checked_add(1usize)
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.filter(|v| *v <= packet.meta.size)
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.ok_or(PacketError::InvalidLen)?;
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let (instruction_len, instruction_len_size) =
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decode_shortu16_len(&packet.data[instructions_len_offset..])
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.map_err(|_| PacketError::InvalidLen)?;
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// skip if has more than 1 instruction
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if instruction_len != 1 {
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return Err(PacketError::InvalidProgramLen);
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}
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let instruction_start = instructions_len_offset
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.checked_add(instruction_len_size)
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.ok_or(PacketError::InvalidLen)?;
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// Packet should have at least 1 more byte for one instructions_program_id
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let _ = instruction_start
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.checked_add(1usize)
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.filter(|v| *v <= packet.meta.size)
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.ok_or(PacketError::InvalidLen)?;
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let instruction_program_id_index: usize = usize::from(packet.data[instruction_start]);
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if instruction_program_id_index >= packet_offsets.pubkey_len as usize {
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return Err(PacketError::InvalidProgramIdIndex);
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}
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let instruction_program_id_start = instruction_program_id_index
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.checked_mul(size_of::<Pubkey>())
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.and_then(|v| v.checked_add(pubkey_start))
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.ok_or(PacketError::InvalidLen)?;
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let instruction_program_id_end = instruction_program_id_start
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.checked_add(size_of::<Pubkey>())
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.ok_or(PacketError::InvalidLen)?;
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if &packet.data[instruction_program_id_start..instruction_program_id_end]
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== solana_sdk::vote::program::id().as_ref()
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{
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packet.meta.is_simple_vote_tx = true;
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}
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Ok(())
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}
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pub fn generate_offsets(batches: &mut [Packets], recycler: &Recycler<TxOffset>) -> TxOffsets {
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debug!("allocating..");
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let mut signature_offsets: PinnedVec<_> = recycler.allocate("sig_offsets");
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signature_offsets.set_pinnable();
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let mut pubkey_offsets: PinnedVec<_> = recycler.allocate("pubkey_offsets");
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pubkey_offsets.set_pinnable();
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let mut msg_start_offsets: PinnedVec<_> = recycler.allocate("msg_start_offsets");
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msg_start_offsets.set_pinnable();
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let mut msg_sizes: PinnedVec<_> = recycler.allocate("msg_size_offsets");
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msg_sizes.set_pinnable();
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let mut current_offset: usize = 0;
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let mut v_sig_lens = Vec::new();
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batches.iter_mut().for_each(|p| {
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let mut sig_lens = Vec::new();
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p.packets.iter_mut().for_each(|packet| {
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let packet_offsets = get_packet_offsets(packet, current_offset);
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sig_lens.push(packet_offsets.sig_len);
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trace!("pubkey_offset: {}", packet_offsets.pubkey_start);
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let mut pubkey_offset = packet_offsets.pubkey_start;
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let mut sig_offset = packet_offsets.sig_start;
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let msg_size = current_offset.saturating_add(packet.meta.size) as u32;
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for _ in 0..packet_offsets.sig_len {
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signature_offsets.push(sig_offset);
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sig_offset = sig_offset.saturating_add(size_of::<Signature>() as u32);
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pubkey_offsets.push(pubkey_offset);
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pubkey_offset = pubkey_offset.saturating_add(size_of::<Pubkey>() as u32);
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msg_start_offsets.push(packet_offsets.msg_start);
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let msg_size = msg_size.saturating_sub(packet_offsets.msg_start);
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msg_sizes.push(msg_size);
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}
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current_offset = current_offset.saturating_add(size_of::<Packet>());
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});
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v_sig_lens.push(sig_lens);
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});
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(
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signature_offsets,
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pubkey_offsets,
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msg_start_offsets,
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msg_sizes,
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v_sig_lens,
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)
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}
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pub fn ed25519_verify_cpu(batches: &mut [Packets]) {
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use rayon::prelude::*;
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let count = batch_size(batches);
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debug!("CPU ECDSA for {}", batch_size(batches));
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PAR_THREAD_POOL.install(|| {
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batches
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.into_par_iter()
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.for_each(|p| p.packets.par_iter_mut().for_each(verify_packet))
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});
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inc_new_counter_debug!("ed25519_verify_cpu", count);
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}
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pub fn ed25519_verify_disabled(batches: &mut [Packets]) {
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use rayon::prelude::*;
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let count = batch_size(batches);
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debug!("disabled ECDSA for {}", batch_size(batches));
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batches.into_par_iter().for_each(|p| {
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p.packets
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.par_iter_mut()
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.for_each(|p| p.meta.discard = false)
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});
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inc_new_counter_debug!("ed25519_verify_disabled", count);
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}
|
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|
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pub fn copy_return_values(sig_lens: &[Vec<u32>], out: &PinnedVec<u8>, rvs: &mut Vec<Vec<u8>>) {
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let mut num = 0;
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for (vs, sig_vs) in rvs.iter_mut().zip(sig_lens.iter()) {
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for (v, sig_v) in vs.iter_mut().zip(sig_vs.iter()) {
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if *sig_v == 0 {
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*v = 0;
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} else {
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let mut vout = 1;
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for _ in 0..*sig_v {
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if 0 == out[num] {
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vout = 0;
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}
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num = num.saturating_add(1);
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}
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*v = vout;
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}
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if *v != 0 {
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trace!("VERIFIED PACKET!!!!!");
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}
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}
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}
|
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}
|
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|
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// return true for success, i.e ge unpacks and !ge.is_small_order()
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pub fn check_packed_ge_small_order(ge: &[u8; 32]) -> bool {
|
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if let Some(api) = perf_libs::api() {
|
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unsafe {
|
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// Returns 1 == fail, 0 == success
|
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let res = (api.ed25519_check_packed_ge_small_order)(ge.as_ptr());
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|
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return res == 0;
|
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}
|
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}
|
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false
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}
|
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|
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pub fn get_checked_scalar(scalar: &[u8; 32]) -> Result<[u8; 32], PacketError> {
|
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let mut out = [0u8; 32];
|
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if let Some(api) = perf_libs::api() {
|
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unsafe {
|
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let res = (api.ed25519_get_checked_scalar)(out.as_mut_ptr(), scalar.as_ptr());
|
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if res == 0 {
|
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return Ok(out);
|
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} else {
|
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return Err(PacketError::InvalidLen);
|
|
}
|
|
}
|
|
}
|
|
Ok(out)
|
|
}
|
|
|
|
pub fn mark_disabled(batches: &mut [Packets], r: &[Vec<u8>]) {
|
|
batches.iter_mut().zip(r).for_each(|(b, v)| {
|
|
b.packets.iter_mut().zip(v).for_each(|(p, f)| {
|
|
p.meta.discard = *f == 0;
|
|
})
|
|
});
|
|
}
|
|
|
|
pub fn ed25519_verify(
|
|
batches: &mut [Packets],
|
|
recycler: &Recycler<TxOffset>,
|
|
recycler_out: &Recycler<PinnedVec<u8>>,
|
|
) {
|
|
let api = perf_libs::api();
|
|
if api.is_none() {
|
|
return ed25519_verify_cpu(batches);
|
|
}
|
|
let api = api.unwrap();
|
|
|
|
use crate::packet::PACKET_DATA_SIZE;
|
|
let count = batch_size(batches);
|
|
|
|
// micro-benchmarks show GPU time for smallest batch around 15-20ms
|
|
// and CPU speed for 64-128 sigverifies around 10-20ms. 64 is a nice
|
|
// power-of-two number around that accounting for the fact that the CPU
|
|
// may be busy doing other things while being a real validator
|
|
// TODO: dynamically adjust this crossover
|
|
if count < 64 {
|
|
return ed25519_verify_cpu(batches);
|
|
}
|
|
|
|
let (signature_offsets, pubkey_offsets, msg_start_offsets, msg_sizes, sig_lens) =
|
|
generate_offsets(batches, recycler);
|
|
|
|
debug!("CUDA ECDSA for {}", batch_size(batches));
|
|
debug!("allocating out..");
|
|
let mut out = recycler_out.allocate("out_buffer");
|
|
out.set_pinnable();
|
|
let mut elems = Vec::new();
|
|
let mut rvs = Vec::new();
|
|
|
|
let mut num_packets: usize = 0;
|
|
for p in batches.iter() {
|
|
elems.push(perf_libs::Elems {
|
|
elems: p.packets.as_ptr(),
|
|
num: p.packets.len() as u32,
|
|
});
|
|
let mut v = Vec::new();
|
|
v.resize(p.packets.len(), 0);
|
|
rvs.push(v);
|
|
num_packets = num_packets.saturating_add(p.packets.len());
|
|
}
|
|
out.resize(signature_offsets.len(), 0);
|
|
trace!("Starting verify num packets: {}", num_packets);
|
|
trace!("elem len: {}", elems.len() as u32);
|
|
trace!("packet sizeof: {}", size_of::<Packet>() as u32);
|
|
trace!("len offset: {}", PACKET_DATA_SIZE as u32);
|
|
const USE_NON_DEFAULT_STREAM: u8 = 1;
|
|
unsafe {
|
|
let res = (api.ed25519_verify_many)(
|
|
elems.as_ptr(),
|
|
elems.len() as u32,
|
|
size_of::<Packet>() as u32,
|
|
num_packets as u32,
|
|
signature_offsets.len() as u32,
|
|
msg_sizes.as_ptr(),
|
|
pubkey_offsets.as_ptr(),
|
|
signature_offsets.as_ptr(),
|
|
msg_start_offsets.as_ptr(),
|
|
out.as_mut_ptr(),
|
|
USE_NON_DEFAULT_STREAM,
|
|
);
|
|
if res != 0 {
|
|
trace!("RETURN!!!: {}", res);
|
|
}
|
|
}
|
|
trace!("done verify");
|
|
copy_return_values(&sig_lens, &out, &mut rvs);
|
|
mark_disabled(batches, &rvs);
|
|
inc_new_counter_debug!("ed25519_verify_gpu", count);
|
|
}
|
|
|
|
#[cfg(test)]
|
|
pub fn make_packet_from_transaction(tx: Transaction) -> Packet {
|
|
use bincode::serialize;
|
|
|
|
let tx_bytes = serialize(&tx).unwrap();
|
|
let mut packet = Packet::default();
|
|
packet.meta.size = tx_bytes.len();
|
|
packet.data[..packet.meta.size].copy_from_slice(&tx_bytes);
|
|
packet
|
|
}
|
|
|
|
#[cfg(test)]
|
|
#[allow(clippy::integer_arithmetic)]
|
|
mod tests {
|
|
use super::*;
|
|
use crate::packet::{Packet, Packets};
|
|
use crate::sigverify;
|
|
use crate::sigverify::PacketOffsets;
|
|
use crate::test_tx::{test_multisig_tx, test_tx, vote_tx};
|
|
use bincode::{deserialize, serialize};
|
|
use solana_sdk::instruction::CompiledInstruction;
|
|
use solana_sdk::message::{Message, MessageHeader};
|
|
use solana_sdk::signature::{Keypair, Signature};
|
|
use solana_sdk::transaction::Transaction;
|
|
|
|
const SIG_OFFSET: usize = 1;
|
|
|
|
pub fn memfind<A: Eq>(a: &[A], b: &[A]) -> Option<usize> {
|
|
assert!(a.len() >= b.len());
|
|
let end = a.len() - b.len() + 1;
|
|
for i in 0..end {
|
|
if a[i..i + b.len()] == b[..] {
|
|
return Some(i);
|
|
}
|
|
}
|
|
None
|
|
}
|
|
|
|
#[test]
|
|
fn test_mark_disabled() {
|
|
let mut batch = Packets::default();
|
|
batch.packets.push(Packet::default());
|
|
let mut batches: Vec<Packets> = vec![batch];
|
|
mark_disabled(&mut batches, &[vec![0]]);
|
|
assert!(batches[0].packets[0].meta.discard);
|
|
mark_disabled(&mut batches, &[vec![1]]);
|
|
assert!(!batches[0].packets[0].meta.discard);
|
|
}
|
|
|
|
#[test]
|
|
fn test_layout() {
|
|
let tx = test_tx();
|
|
let tx_bytes = serialize(&tx).unwrap();
|
|
let packet = serialize(&tx).unwrap();
|
|
assert_matches!(memfind(&packet, &tx_bytes), Some(0));
|
|
assert_matches!(memfind(&packet, &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]), None);
|
|
}
|
|
|
|
#[test]
|
|
fn test_system_transaction_layout() {
|
|
let tx = test_tx();
|
|
let tx_bytes = serialize(&tx).unwrap();
|
|
let message_data = tx.message_data();
|
|
let mut packet = sigverify::make_packet_from_transaction(tx.clone());
|
|
|
|
let packet_offsets = sigverify::get_packet_offsets(&mut packet, 0);
|
|
|
|
assert_eq!(
|
|
memfind(&tx_bytes, tx.signatures[0].as_ref()),
|
|
Some(SIG_OFFSET)
|
|
);
|
|
assert_eq!(
|
|
memfind(&tx_bytes, tx.message().account_keys[0].as_ref()),
|
|
Some(packet_offsets.pubkey_start as usize)
|
|
);
|
|
assert_eq!(
|
|
memfind(&tx_bytes, &message_data),
|
|
Some(packet_offsets.msg_start as usize)
|
|
);
|
|
assert_eq!(
|
|
memfind(&tx_bytes, tx.signatures[0].as_ref()),
|
|
Some(packet_offsets.sig_start as usize)
|
|
);
|
|
assert_eq!(packet_offsets.sig_len, 1);
|
|
}
|
|
|
|
fn packet_from_num_sigs(required_num_sigs: u8, actual_num_sigs: usize) -> Packet {
|
|
let message = Message {
|
|
header: MessageHeader {
|
|
num_required_signatures: required_num_sigs,
|
|
num_readonly_signed_accounts: 12,
|
|
num_readonly_unsigned_accounts: 11,
|
|
},
|
|
account_keys: vec![],
|
|
recent_blockhash: Hash::default(),
|
|
instructions: vec![],
|
|
};
|
|
let mut tx = Transaction::new_unsigned(message);
|
|
tx.signatures = vec![Signature::default(); actual_num_sigs as usize];
|
|
sigverify::make_packet_from_transaction(tx)
|
|
}
|
|
|
|
#[test]
|
|
fn test_untrustworthy_sigs() {
|
|
let required_num_sigs = 14;
|
|
let actual_num_sigs = 5;
|
|
|
|
let packet = packet_from_num_sigs(required_num_sigs, actual_num_sigs);
|
|
|
|
let unsanitized_packet_offsets = sigverify::do_get_packet_offsets(&packet, 0);
|
|
|
|
assert_eq!(
|
|
unsanitized_packet_offsets,
|
|
Err(PacketError::MismatchSignatureLen)
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_small_packet() {
|
|
let tx = test_tx();
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
packet.data[0] = 0xff;
|
|
packet.data[1] = 0xff;
|
|
packet.meta.size = 2;
|
|
|
|
let res = sigverify::do_get_packet_offsets(&packet, 0);
|
|
assert_eq!(res, Err(PacketError::InvalidLen));
|
|
}
|
|
|
|
#[test]
|
|
fn test_pubkey_too_small() {
|
|
solana_logger::setup();
|
|
let mut tx = test_tx();
|
|
let sig = tx.signatures[0];
|
|
const NUM_SIG: usize = 18;
|
|
tx.signatures = vec![sig; NUM_SIG];
|
|
tx.message.account_keys = vec![];
|
|
tx.message.header.num_required_signatures = NUM_SIG as u8;
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
let res = sigverify::do_get_packet_offsets(&packet, 0);
|
|
assert_eq!(res, Err(PacketError::InvalidPubkeyLen));
|
|
|
|
verify_packet(&mut packet);
|
|
assert!(packet.meta.discard);
|
|
|
|
packet.meta.discard = false;
|
|
let mut batches = generate_packet_vec(&packet, 1, 1);
|
|
ed25519_verify(&mut batches);
|
|
assert!(batches[0].packets[0].meta.discard);
|
|
}
|
|
|
|
#[test]
|
|
fn test_pubkey_len() {
|
|
// See that the verify cannot walk off the end of the packet
|
|
// trying to index into the account_keys to access pubkey.
|
|
use solana_sdk::signer::{keypair::Keypair, Signer};
|
|
solana_logger::setup();
|
|
|
|
const NUM_SIG: usize = 17;
|
|
let keypair1 = Keypair::new();
|
|
let pubkey1 = keypair1.pubkey();
|
|
let mut message = Message::new(&[], Some(&pubkey1));
|
|
message.account_keys.push(pubkey1);
|
|
message.account_keys.push(pubkey1);
|
|
message.header.num_required_signatures = NUM_SIG as u8;
|
|
message.recent_blockhash = Hash(pubkey1.to_bytes());
|
|
let mut tx = Transaction::new_unsigned(message);
|
|
|
|
info!("message: {:?}", tx.message_data());
|
|
info!("tx: {:?}", tx);
|
|
let sig = keypair1.try_sign_message(&tx.message_data()).unwrap();
|
|
tx.signatures = vec![sig; NUM_SIG];
|
|
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
let res = sigverify::do_get_packet_offsets(&packet, 0);
|
|
assert_eq!(res, Err(PacketError::InvalidPubkeyLen));
|
|
|
|
verify_packet(&mut packet);
|
|
assert!(packet.meta.discard);
|
|
|
|
packet.meta.discard = false;
|
|
let mut batches = generate_packet_vec(&packet, 1, 1);
|
|
ed25519_verify(&mut batches);
|
|
assert!(batches[0].packets[0].meta.discard);
|
|
}
|
|
|
|
#[test]
|
|
fn test_large_sig_len() {
|
|
let tx = test_tx();
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
// Make the signatures len huge
|
|
packet.data[0] = 0x7f;
|
|
|
|
let res = sigverify::do_get_packet_offsets(&packet, 0);
|
|
assert_eq!(res, Err(PacketError::InvalidSignatureLen));
|
|
}
|
|
|
|
#[test]
|
|
fn test_really_large_sig_len() {
|
|
let tx = test_tx();
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
// Make the signatures len huge
|
|
packet.data[0] = 0xff;
|
|
packet.data[1] = 0xff;
|
|
packet.data[2] = 0xff;
|
|
packet.data[3] = 0xff;
|
|
|
|
let res = sigverify::do_get_packet_offsets(&packet, 0);
|
|
assert_eq!(res, Err(PacketError::InvalidShortVec));
|
|
}
|
|
|
|
#[test]
|
|
fn test_invalid_pubkey_len() {
|
|
let tx = test_tx();
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
let res = sigverify::do_get_packet_offsets(&packet, 0);
|
|
|
|
// make pubkey len huge
|
|
packet.data[res.unwrap().pubkey_start as usize - 1] = 0x7f;
|
|
|
|
let res = sigverify::do_get_packet_offsets(&packet, 0);
|
|
assert_eq!(res, Err(PacketError::InvalidPubkeyLen));
|
|
}
|
|
|
|
#[test]
|
|
fn test_fee_payer_is_debitable() {
|
|
let message = Message {
|
|
header: MessageHeader {
|
|
num_required_signatures: 1,
|
|
num_readonly_signed_accounts: 1,
|
|
num_readonly_unsigned_accounts: 1,
|
|
},
|
|
account_keys: vec![],
|
|
recent_blockhash: Hash::default(),
|
|
instructions: vec![],
|
|
};
|
|
let mut tx = Transaction::new_unsigned(message);
|
|
tx.signatures = vec![Signature::default()];
|
|
let packet = sigverify::make_packet_from_transaction(tx);
|
|
let res = sigverify::do_get_packet_offsets(&packet, 0);
|
|
|
|
assert_eq!(res, Err(PacketError::PayerNotWritable));
|
|
}
|
|
|
|
#[test]
|
|
fn test_unsupported_version() {
|
|
let tx = test_tx();
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
let res = sigverify::do_get_packet_offsets(&packet, 0);
|
|
|
|
// set message version to 1
|
|
packet.data[res.unwrap().msg_start as usize] = MESSAGE_VERSION_PREFIX + 1;
|
|
|
|
let res = sigverify::do_get_packet_offsets(&packet, 0);
|
|
assert_eq!(res, Err(PacketError::UnsupportedVersion));
|
|
}
|
|
|
|
#[test]
|
|
fn test_versioned_message() {
|
|
let tx = test_tx();
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
let mut legacy_offsets = sigverify::do_get_packet_offsets(&packet, 0).unwrap();
|
|
|
|
// set message version to 0
|
|
let msg_start = legacy_offsets.msg_start as usize;
|
|
let msg_bytes = packet.data[msg_start..packet.meta.size].to_vec();
|
|
packet.data[msg_start] = MESSAGE_VERSION_PREFIX;
|
|
packet.meta.size += 1;
|
|
packet.data[msg_start + 1..packet.meta.size].copy_from_slice(&msg_bytes);
|
|
|
|
let offsets = sigverify::do_get_packet_offsets(&packet, 0).unwrap();
|
|
let expected_offsets = {
|
|
legacy_offsets.pubkey_start += 1;
|
|
legacy_offsets
|
|
};
|
|
|
|
assert_eq!(expected_offsets, offsets);
|
|
}
|
|
|
|
#[test]
|
|
fn test_system_transaction_data_layout() {
|
|
use crate::packet::PACKET_DATA_SIZE;
|
|
let mut tx0 = test_tx();
|
|
tx0.message.instructions[0].data = vec![1, 2, 3];
|
|
let message0a = tx0.message_data();
|
|
let tx_bytes = serialize(&tx0).unwrap();
|
|
assert!(tx_bytes.len() <= PACKET_DATA_SIZE);
|
|
assert_eq!(
|
|
memfind(&tx_bytes, tx0.signatures[0].as_ref()),
|
|
Some(SIG_OFFSET)
|
|
);
|
|
let tx1 = deserialize(&tx_bytes).unwrap();
|
|
assert_eq!(tx0, tx1);
|
|
assert_eq!(tx1.message().instructions[0].data, vec![1, 2, 3]);
|
|
|
|
tx0.message.instructions[0].data = vec![1, 2, 4];
|
|
let message0b = tx0.message_data();
|
|
assert_ne!(message0a, message0b);
|
|
}
|
|
|
|
// Just like get_packet_offsets, but not returning redundant information.
|
|
fn get_packet_offsets_from_tx(tx: Transaction, current_offset: u32) -> PacketOffsets {
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
let packet_offsets = sigverify::get_packet_offsets(&mut packet, current_offset as usize);
|
|
PacketOffsets::new(
|
|
packet_offsets.sig_len,
|
|
packet_offsets.sig_start - current_offset,
|
|
packet_offsets.msg_start - packet_offsets.sig_start,
|
|
packet_offsets.pubkey_start - packet_offsets.msg_start,
|
|
packet_offsets.pubkey_len,
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn test_get_packet_offsets() {
|
|
assert_eq!(
|
|
get_packet_offsets_from_tx(test_tx(), 0),
|
|
PacketOffsets::new(1, 1, 64, 4, 2)
|
|
);
|
|
assert_eq!(
|
|
get_packet_offsets_from_tx(test_tx(), 100),
|
|
PacketOffsets::new(1, 1, 64, 4, 2)
|
|
);
|
|
|
|
// Ensure we're not indexing packet by the `current_offset` parameter.
|
|
assert_eq!(
|
|
get_packet_offsets_from_tx(test_tx(), 1_000_000),
|
|
PacketOffsets::new(1, 1, 64, 4, 2)
|
|
);
|
|
|
|
// Ensure we're returning sig_len, not sig_size.
|
|
assert_eq!(
|
|
get_packet_offsets_from_tx(test_multisig_tx(), 0),
|
|
PacketOffsets::new(2, 1, 128, 4, 4)
|
|
);
|
|
}
|
|
|
|
fn generate_packet_vec(
|
|
packet: &Packet,
|
|
num_packets_per_batch: usize,
|
|
num_batches: usize,
|
|
) -> Vec<Packets> {
|
|
// generate packet vector
|
|
let batches: Vec<_> = (0..num_batches)
|
|
.map(|_| {
|
|
let mut packets = Packets::default();
|
|
packets.packets.resize(0, Packet::default());
|
|
for _ in 0..num_packets_per_batch {
|
|
packets.packets.push(packet.clone());
|
|
}
|
|
assert_eq!(packets.packets.len(), num_packets_per_batch);
|
|
packets
|
|
})
|
|
.collect();
|
|
assert_eq!(batches.len(), num_batches);
|
|
|
|
batches
|
|
}
|
|
|
|
fn test_verify_n(n: usize, modify_data: bool) {
|
|
let tx = test_tx();
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
// jumble some data to test failure
|
|
if modify_data {
|
|
packet.data[20] = packet.data[20].wrapping_add(10);
|
|
}
|
|
|
|
let mut batches = generate_packet_vec(&packet, n, 2);
|
|
|
|
// verify packets
|
|
ed25519_verify(&mut batches);
|
|
|
|
// check result
|
|
let should_discard = modify_data;
|
|
assert!(batches
|
|
.iter()
|
|
.flat_map(|p| &p.packets)
|
|
.all(|p| p.meta.discard == should_discard));
|
|
}
|
|
|
|
fn ed25519_verify(batches: &mut [Packets]) {
|
|
let recycler = Recycler::default();
|
|
let recycler_out = Recycler::default();
|
|
sigverify::ed25519_verify(batches, &recycler, &recycler_out);
|
|
}
|
|
|
|
#[test]
|
|
fn test_verify_tampered_sig_len() {
|
|
let mut tx = test_tx();
|
|
// pretend malicious leader dropped a signature...
|
|
tx.signatures.pop();
|
|
let packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
let mut batches = generate_packet_vec(&packet, 1, 1);
|
|
|
|
// verify packets
|
|
ed25519_verify(&mut batches);
|
|
assert!(batches
|
|
.iter()
|
|
.flat_map(|p| &p.packets)
|
|
.all(|p| p.meta.discard));
|
|
}
|
|
|
|
#[test]
|
|
fn test_verify_zero() {
|
|
test_verify_n(0, false);
|
|
}
|
|
|
|
#[test]
|
|
fn test_verify_one() {
|
|
test_verify_n(1, false);
|
|
}
|
|
|
|
#[test]
|
|
fn test_verify_seventy_one() {
|
|
test_verify_n(71, false);
|
|
}
|
|
|
|
#[test]
|
|
fn test_verify_multisig() {
|
|
solana_logger::setup();
|
|
|
|
let tx = test_multisig_tx();
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
let n = 4;
|
|
let num_batches = 3;
|
|
let mut batches = generate_packet_vec(&packet, n, num_batches);
|
|
|
|
packet.data[40] = packet.data[40].wrapping_add(8);
|
|
|
|
batches[0].packets.push(packet);
|
|
|
|
// verify packets
|
|
ed25519_verify(&mut batches);
|
|
|
|
// check result
|
|
let ref_ans = 1u8;
|
|
let mut ref_vec = vec![vec![ref_ans; n]; num_batches];
|
|
ref_vec[0].push(0u8);
|
|
assert!(batches
|
|
.iter()
|
|
.flat_map(|p| &p.packets)
|
|
.zip(ref_vec.into_iter().flatten())
|
|
.all(|(p, discard)| {
|
|
if discard == 0 {
|
|
p.meta.discard
|
|
} else {
|
|
!p.meta.discard
|
|
}
|
|
}));
|
|
}
|
|
|
|
#[test]
|
|
fn test_verify_fuzz() {
|
|
use rand::{thread_rng, Rng};
|
|
solana_logger::setup();
|
|
|
|
let tx = test_multisig_tx();
|
|
let packet = sigverify::make_packet_from_transaction(tx);
|
|
|
|
let recycler = Recycler::default();
|
|
let recycler_out = Recycler::default();
|
|
for _ in 0..50 {
|
|
let n = thread_rng().gen_range(1, 30);
|
|
let num_batches = thread_rng().gen_range(2, 30);
|
|
let mut batches = generate_packet_vec(&packet, n, num_batches);
|
|
|
|
let num_modifications = thread_rng().gen_range(0, 5);
|
|
for _ in 0..num_modifications {
|
|
let batch = thread_rng().gen_range(0, batches.len());
|
|
let packet = thread_rng().gen_range(0, batches[batch].packets.len());
|
|
let offset = thread_rng().gen_range(0, batches[batch].packets[packet].meta.size);
|
|
let add = thread_rng().gen_range(0, 255);
|
|
batches[batch].packets[packet].data[offset] =
|
|
batches[batch].packets[packet].data[offset].wrapping_add(add);
|
|
}
|
|
|
|
// verify from GPU verification pipeline (when GPU verification is enabled) are
|
|
// equivalent to the CPU verification pipeline.
|
|
let mut batches_cpu = batches.clone();
|
|
sigverify::ed25519_verify(&mut batches, &recycler, &recycler_out);
|
|
ed25519_verify_cpu(&mut batches_cpu);
|
|
|
|
// check result
|
|
batches
|
|
.iter()
|
|
.flat_map(|p| &p.packets)
|
|
.zip(batches_cpu.iter().flat_map(|p| &p.packets))
|
|
.for_each(|(p1, p2)| assert_eq!(p1, p2));
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_verify_fail() {
|
|
test_verify_n(5, true);
|
|
}
|
|
|
|
#[test]
|
|
fn test_get_checked_scalar() {
|
|
solana_logger::setup();
|
|
use curve25519_dalek::scalar::Scalar;
|
|
use rand::{thread_rng, Rng};
|
|
use rayon::prelude::*;
|
|
use std::sync::atomic::{AtomicU64, Ordering};
|
|
|
|
if perf_libs::api().is_none() {
|
|
return;
|
|
}
|
|
|
|
let passed_g = AtomicU64::new(0);
|
|
let failed_g = AtomicU64::new(0);
|
|
(0..4).into_par_iter().for_each(|_| {
|
|
let mut input = [0u8; 32];
|
|
let mut passed = 0;
|
|
let mut failed = 0;
|
|
for _ in 0..1_000_000 {
|
|
thread_rng().fill(&mut input);
|
|
let ans = get_checked_scalar(&input);
|
|
let ref_ans = Scalar::from_canonical_bytes(input);
|
|
if let Some(ref_ans) = ref_ans {
|
|
passed += 1;
|
|
assert_eq!(ans.unwrap(), ref_ans.to_bytes());
|
|
} else {
|
|
failed += 1;
|
|
assert!(ans.is_err());
|
|
}
|
|
}
|
|
passed_g.fetch_add(passed, Ordering::Relaxed);
|
|
failed_g.fetch_add(failed, Ordering::Relaxed);
|
|
});
|
|
info!(
|
|
"passed: {} failed: {}",
|
|
passed_g.load(Ordering::Relaxed),
|
|
failed_g.load(Ordering::Relaxed)
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_ge_small_order() {
|
|
solana_logger::setup();
|
|
use curve25519_dalek::edwards::CompressedEdwardsY;
|
|
use rand::{thread_rng, Rng};
|
|
use rayon::prelude::*;
|
|
use std::sync::atomic::{AtomicU64, Ordering};
|
|
|
|
if perf_libs::api().is_none() {
|
|
return;
|
|
}
|
|
|
|
let passed_g = AtomicU64::new(0);
|
|
let failed_g = AtomicU64::new(0);
|
|
(0..4).into_par_iter().for_each(|_| {
|
|
let mut input = [0u8; 32];
|
|
let mut passed = 0;
|
|
let mut failed = 0;
|
|
for _ in 0..1_000_000 {
|
|
thread_rng().fill(&mut input);
|
|
let ans = check_packed_ge_small_order(&input);
|
|
let ref_ge = CompressedEdwardsY::from_slice(&input);
|
|
if let Some(ref_element) = ref_ge.decompress() {
|
|
if ref_element.is_small_order() {
|
|
assert!(!ans);
|
|
} else {
|
|
assert!(ans);
|
|
}
|
|
} else {
|
|
assert!(!ans);
|
|
}
|
|
if ans {
|
|
passed += 1;
|
|
} else {
|
|
failed += 1;
|
|
}
|
|
}
|
|
passed_g.fetch_add(passed, Ordering::Relaxed);
|
|
failed_g.fetch_add(failed, Ordering::Relaxed);
|
|
});
|
|
info!(
|
|
"passed: {} failed: {}",
|
|
passed_g.load(Ordering::Relaxed),
|
|
failed_g.load(Ordering::Relaxed)
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_is_simple_vote_transaction() {
|
|
solana_logger::setup();
|
|
|
|
// tansfer tx is not
|
|
{
|
|
let mut tx = test_tx();
|
|
tx.message.instructions[0].data = vec![1, 2, 3];
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
let packet_offsets = do_get_packet_offsets(&packet, 0).unwrap();
|
|
check_for_simple_vote_transaction(&mut packet, &packet_offsets, 0).ok();
|
|
assert!(!packet.meta.is_simple_vote_tx);
|
|
}
|
|
|
|
// single vote tx is
|
|
{
|
|
let mut tx = vote_tx();
|
|
tx.message.instructions[0].data = vec![1, 2, 3];
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
let packet_offsets = do_get_packet_offsets(&packet, 0).unwrap();
|
|
check_for_simple_vote_transaction(&mut packet, &packet_offsets, 0).ok();
|
|
assert!(packet.meta.is_simple_vote_tx);
|
|
}
|
|
|
|
// multiple mixed tx is not
|
|
{
|
|
let key = Keypair::new();
|
|
let key1 = Pubkey::new_unique();
|
|
let key2 = Pubkey::new_unique();
|
|
let tx = Transaction::new_with_compiled_instructions(
|
|
&[&key],
|
|
&[key1, key2],
|
|
Hash::default(),
|
|
vec![solana_vote_program::id(), Pubkey::new_unique()],
|
|
vec![
|
|
CompiledInstruction::new(3, &(), vec![0, 1]),
|
|
CompiledInstruction::new(4, &(), vec![0, 2]),
|
|
],
|
|
);
|
|
let mut packet = sigverify::make_packet_from_transaction(tx);
|
|
let packet_offsets = do_get_packet_offsets(&packet, 0).unwrap();
|
|
check_for_simple_vote_transaction(&mut packet, &packet_offsets, 0).ok();
|
|
assert!(!packet.meta.is_simple_vote_tx);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_is_simple_vote_transaction_with_offsets() {
|
|
solana_logger::setup();
|
|
|
|
let mut current_offset = 0usize;
|
|
let mut batch = Packets::default();
|
|
batch
|
|
.packets
|
|
.push(sigverify::make_packet_from_transaction(test_tx()));
|
|
batch
|
|
.packets
|
|
.push(sigverify::make_packet_from_transaction(vote_tx()));
|
|
batch
|
|
.packets
|
|
.iter_mut()
|
|
.enumerate()
|
|
.for_each(|(index, packet)| {
|
|
let packet_offsets = do_get_packet_offsets(packet, current_offset).unwrap();
|
|
check_for_simple_vote_transaction(packet, &packet_offsets, current_offset).ok();
|
|
if index == 1 {
|
|
assert!(packet.meta.is_simple_vote_tx);
|
|
} else {
|
|
assert!(!packet.meta.is_simple_vote_tx);
|
|
}
|
|
|
|
current_offset = current_offset.saturating_add(size_of::<Packet>());
|
|
});
|
|
}
|
|
}
|