solana-program-library/token/twoxtx.patch

85 lines
3.3 KiB
Diff

From aa223c645791be158a597efb8579270dbe5bdd82 Mon Sep 17 00:00:00 2001
From: Jon Cinque <jon.cinque@gmail.com>
Date: Wed, 31 Aug 2022 01:02:34 +0200
Subject: [PATCH] [PATCH] feat: double PACKET_DATA_SIZE
Try blind double of PACKET_DATA_SIZE; this double things across the
board and is not a permanent solution.
---
rpc/src/rpc.rs | 16 +++++++++++-----
sdk/src/packet.rs | 3 ++-
web3.js/src/transaction/constants.ts | 2 +-
3 files changed, 14 insertions(+), 7 deletions(-)
diff --git a/rpc/src/rpc.rs b/rpc/src/rpc.rs
index 8d5d12f033..9d46a315ce 100644
--- a/rpc/src/rpc.rs
+++ b/rpc/src/rpc.rs
@@ -4393,8 +4393,11 @@ pub mod rpc_obsolete_v1_7 {
}
}
-const MAX_BASE58_SIZE: usize = 1683; // Golden, bump if PACKET_DATA_SIZE changes
-const MAX_BASE64_SIZE: usize = 1644; // Golden, bump if PACKET_DATA_SIZE changes
+// These values need to be updated if PACKET_DATA_SIZE changes. The correct values can
+// be found by hand or by simply encoding `PACKET_DATA_SIZE` bytes and checking length.
+// `test_max_encoded_tx_goldens` ensures these values are correct.
+const MAX_BASE58_SIZE: usize = 3365;
+const MAX_BASE64_SIZE: usize = 3288;
fn decode_and_deserialize<T>(
encoded: String,
encoding: TransactionBinaryEncoding,
@@ -8285,7 +8288,7 @@ pub mod tests {
}
#[test]
- fn test_worst_case_encoded_tx_goldens() {
+ fn test_max_encoded_tx_goldens() {
let ff_tx = vec![0xffu8; PACKET_DATA_SIZE];
let tx58 = bs58::encode(&ff_tx).into_string();
assert_eq!(tx58.len(), MAX_BASE58_SIZE);
@@ -8295,8 +8298,11 @@ pub mod tests {
#[test]
fn test_decode_and_deserialize_too_large_payloads_fail() {
- // +2 because +1 still fits in base64 encoded worst-case
- let too_big = PACKET_DATA_SIZE + 2;
+ // 4 base64 digits are generated from groups of 3 bytes; however, those 4 digits
+ // are generated even if the group only has 1 or 2 bytes.
+ // So, we need 4 - (PACKET_DATA_SIZE % 3) extra bytes to ensure we'll spill over
+ let extra_bytes = 4 - (PACKET_DATA_SIZE % 3);
+ let too_big = PACKET_DATA_SIZE + extra_bytes;
let tx_ser = vec![0xffu8; too_big];
let tx58 = bs58::encode(&tx_ser).into_string();
let tx58_len = tx58.len();
diff --git a/sdk/src/packet.rs b/sdk/src/packet.rs
index 412375e35f..112d962fe8 100644
--- a/sdk/src/packet.rs
+++ b/sdk/src/packet.rs
@@ -15,7 +15,8 @@ static_assertions::const_assert_eq!(PACKET_DATA_SIZE, 1232);
/// 1280 is IPv6 minimum MTU
/// 40 bytes is the size of the IPv6 header
/// 8 bytes is the size of the fragment header
-pub const PACKET_DATA_SIZE: usize = 1280 - 40 - 8;
+/// Double the minimum to support larger than MTU transactions
+pub const PACKET_DATA_SIZE: usize = 2 * (1280 - 40 - 8);
bitflags! {
#[repr(C)]
diff --git a/web3.js/src/transaction/constants.ts b/web3.js/src/transaction/constants.ts
index 075337e8dc..618d48cdfd 100644
--- a/web3.js/src/transaction/constants.ts
+++ b/web3.js/src/transaction/constants.ts
@@ -5,7 +5,7 @@
* 40 bytes is the size of the IPv6 header
* 8 bytes is the size of the fragment header
*/
-export const PACKET_DATA_SIZE = 1280 - 40 - 8;
+export const PACKET_DATA_SIZE = 2464;
export const VERSION_PREFIX_MASK = 0x7f;
--
2.37.2