feat(zseri): Add store-ref-scanner crate
This crate implements the scanner for finding references to store paths in uncompressed binary blobs and text files. It is currently a minimally working prototype and it is probably a good idea to polish the interface further. Change-Id: I8406f9d52d254fc3d660ea2b9bc9b7841cc815ec Reviewed-on: https://cl.tvl.fyi/c/depot/+/4596 Tested-by: BuildkiteCI Reviewed-by: zseri <zseri.devel@ytrizja.de>
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zseri
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8 changed files with 2018 additions and 0 deletions
150
users/zseri/store-ref-scanner/src/hbm.rs
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150
users/zseri/store-ref-scanner/src/hbm.rs
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@ -0,0 +1,150 @@
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#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
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pub struct HalfBytesMask(pub [u8; 16]);
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impl HalfBytesMask {
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pub const B32_REVSHA256: HalfBytesMask =
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HalfBytesMask([0, 0, 0, 0, 0, 0, 255, 3, 0, 0, 0, 0, 222, 127, 207, 7]);
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pub const B64_BLAKE2B256: HalfBytesMask = HalfBytesMask([
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0, 0, 0, 0, 0, 8, 255, 3, 254, 255, 255, 135, 254, 255, 255, 7,
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]);
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#[inline]
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#[proc_unroll::unroll]
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pub const fn from_expanded(x: [bool; 128]) -> Self {
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let mut ret = [0u8; 16];
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for idx in 0..16 {
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let mut tmp = 0;
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let fin = idx * 8;
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macro_rules! bitx {
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($($a:expr),+) => {{ $( if x[fin + $a] { tmp += (1 << $a) as u8; } )+ }}
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}
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bitx!(0, 1, 2, 3, 4, 5, 6, 7);
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ret[idx] = tmp;
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}
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Self(ret)
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}
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/// create a mask by allowing all characters via the mask which are included in the given string
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pub fn from_bytes(s: &[u8]) -> Self {
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s.iter().fold(Self([0u8; 16]), |mut ret, &i| {
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ret.set(i, true);
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ret
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})
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}
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#[proc_unroll::unroll]
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pub const fn into_expanded(self) -> [bool; 128] {
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let Self(ihbm) = self;
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let mut ret = [false; 128];
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for idx in 0..16 {
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let fin = idx * 8;
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let curi = ihbm[idx];
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macro_rules! bitx {
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($($a:expr),+) => {{ $( ret[fin + $a] = (curi >> $a) & 0b1 != 0; )+ }}
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}
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bitx!(0, 1, 2, 3, 4, 5, 6, 7);
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}
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ret
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}
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pub fn contains(&self, byte: u8) -> bool {
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(self.0[usize::from(byte / 8)] >> u32::from(byte % 8)) & 0b1 != 0
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}
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pub fn set(&mut self, byte: u8, allow: bool) {
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if byte >= 0x80 {
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if cfg!(debug_assertions) {
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panic!(
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"tried to manipulate invalid byte {:?} in HalfBytesMask",
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byte
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);
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} else {
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return;
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}
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}
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let mut block = &mut self.0[usize::from(byte / 8)];
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let bitpat = (1 << u32::from(byte % 8)) as u8;
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if allow {
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*block |= bitpat;
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} else {
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*block &= !bitpat;
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}
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}
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#[cfg(test)]
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fn count_ones(&self) -> u8 {
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self.0
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.iter()
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.map(|i| i.count_ones())
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.sum::<u32>()
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.try_into()
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.unwrap()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn maskbase() {
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assert_eq!(HalfBytesMask::B32_REVSHA256.count_ones(), 32);
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assert_eq!(HalfBytesMask::B64_BLAKE2B256.count_ones(), 64);
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}
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#[test]
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fn dflmask() {
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assert_eq!(
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HalfBytesMask::from_expanded(
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[
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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]
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.map(|i| i != 0)
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),
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Default::default(),
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);
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assert_eq!(
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HalfBytesMask::from_expanded(
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[
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
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]
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.map(|i| i != 0)
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),
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HalfBytesMask::B32_REVSHA256,
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);
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assert_eq!(
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HalfBytesMask::from_expanded(
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[
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,
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]
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.map(|i| i != 0)
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),
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HalfBytesMask::B64_BLAKE2B256,
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);
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}
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proptest::proptest! {
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#[test]
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fn hbm_roundtrip(s: [u8; 16]) {
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let a = HalfBytesMask(s);
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let b = a.into_expanded();
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let c = HalfBytesMask::from_expanded(b);
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assert_eq!(a, c);
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}
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}
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}
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225
users/zseri/store-ref-scanner/src/lib.rs
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225
users/zseri/store-ref-scanner/src/lib.rs
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@ -0,0 +1,225 @@
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// TODO: make this no_std if possible
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use camino::Utf8PathBuf;
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mod hbm;
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pub use hbm::HalfBytesMask;
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mod spec;
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pub use spec::*;
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/// limit maximal length of store basename
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const BASENAME_MAXLEN: usize = 255;
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/// this is a trait which implements the interface of possible inputs
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/// (usually byte slices)
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pub trait ScannerInput: AsRef<[u8]> + Sized {
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/// Splits the input into two at the given index.
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/// Afterwards self contains elements [at, len), and the returned input part contains elements [0, at).
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fn split_to(&mut self, at: usize) -> Self;
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fn finish(&mut self);
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}
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impl ScannerInput for &[u8] {
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fn split_to(&mut self, at: usize) -> Self {
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let (a, b) = self.split_at(at);
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*self = b;
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a
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}
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fn finish(&mut self) {
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*self = &[];
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}
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}
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impl ScannerInput for &mut [u8] {
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fn split_to(&mut self, at: usize) -> Self {
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// Lifetime dance taken from `impl Write for &mut [u8]`.
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// Taken from crate `std`.
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let (a, b) = core::mem::replace(self, &mut []).split_at_mut(at);
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*self = b;
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a
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}
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fn finish(&mut self) {
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*self = &mut [];
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}
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}
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/// this is the primary structure of this crate
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///
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/// it represents a scanner which scans binary slices for store references,
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/// and implements an iterator interfaces which returns these as byte slices.
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pub struct StoreRefScanner<'x, Input: 'x> {
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input: Input,
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spec: &'x StoreSpec,
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}
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/// Taken from crate `yz-string-utils`.
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fn get_offset_of<T>(whole_buffer: &T, part: &T) -> usize
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where
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T: AsRef<[u8]> + ?Sized,
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{
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// NOTE: originally I wanted to use offset_from() here once it's stable,
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// but according to https://github.com/rust-lang/rust/issues/41079#issuecomment-657163887
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// this would be UB in cases where the code below isn't.
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part.as_ref().as_ptr() as usize - whole_buffer.as_ref().as_ptr() as usize
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}
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impl<'x, Input> StoreRefScanner<'x, Input>
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where
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Input: ScannerInput + 'x,
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{
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pub fn new(input: Input, spec: &'x StoreSpec) -> Self {
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for i in [&spec.valid_hashbytes, &spec.valid_restbytes] {
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for j in [b'\0', b' ', b'\t', b'\n', b'/', b'\\'] {
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assert!(!i.contains(j));
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}
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}
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Self { input, spec }
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}
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}
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impl<'x, Input: 'x> Iterator for StoreRefScanner<'x, Input>
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where
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Input: ScannerInput + 'x,
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{
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type Item = Input;
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fn next(&mut self) -> Option<Input> {
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let empty_path = camino::Utf8Path::new("");
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let hbl: usize = self.spec.hashbytes_len.into();
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while !self.input.as_ref().is_empty() {
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if self.spec.path_to_store != empty_path {
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let p2sas = self.spec.path_to_store.as_str();
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if self.input.as_ref().starts_with(p2sas.as_bytes()) {
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self.input.split_to(p2sas.len());
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} else {
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self.input.split_to(1);
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continue;
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}
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}
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let hsep = matches!(self.input.as_ref().iter().next(), Some(b'/') | Some(b'\\'));
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self.input.split_to(1);
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if hsep && self.spec.check_rest(self.input.as_ref()) {
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// we have found a valid hash
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// rest contains the store basename and all following components
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// now let's search for the end
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// and then cut off possible following components after the basename
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let rlen = self
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.input
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.as_ref()
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.iter()
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.enumerate()
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.take(BASENAME_MAXLEN)
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.skip(hbl)
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.find(|&(_, &i)| !self.spec.valid_restbytes.contains(i))
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.map(|(eosp, _)| eosp)
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.unwrap_or(core::cmp::min(BASENAME_MAXLEN, self.input.as_ref().len()));
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return Some(self.input.split_to(rlen));
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}
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}
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self.input.finish();
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None
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn simple_nix2() {
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let drv: &[u8] = br#"
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Derive([("out","","r:sha256","")],[("/nix/store/2ax7bvjdfkzim69q957i0jlg0nvmapg0-util-linux-2.37.2.drv",["dev"]),("/nix/store/6b55ssmh8pzqsc4q4kw1yl3kqvr4fvqj-bash-5.1-p12.drv",["out"]),("/nix/store/fp2vx24kczlzv84avds28wyzsmrn8kyv-source.drv",["out"]),("/nix/store/s6c2lm5hpsvdwnxq9y1g3ngncghjzc3k-stdenv-linux.drv",["out"]),("/nix/store/xlnzpf4mzghi8vl0krabrgcbnqk5qjf3-pkg-config-wrapper-0.29.2.drv",["out"])],["/nix/store/03sl46khd8gmjpsad7223m32ma965vy9-fix-static.patch","/nix/store/2q3z7587yhlz0i2xvfvvap42zk5carlv-bcache-udev-modern.patch","/nix/store/9krlzvny65gdc8s7kpb6lkx8cd02c25b-default-builder.sh"],"x86_64-linux","/0g15yibzzi3rmw29gqlbms05x9dbghbvh61v1qggydvmzh3bginw/bin/bash",["-e","/nix/store/9krlzvny65gdc8s7kpb6lkx8cd02c25b-default-builder.sh"],[("buildInputs","/0sdk1r4l43yw4g6lmqdhd92vhdfhlwz3m76jxzvzsqsv63czw2km"),("builder","/0g15yibzzi3rmw29gqlbms05x9dbghbvh61v1qggydvmzh3bginw/bin/bash"),("configureFlags",""),("depsBuildBuild",""),("depsBuildBuildPropagated",""),("depsBuildTarget",""),("depsBuildTargetPropagated",""),("depsHostHost",""),("depsHostHostPropagated",""),("depsTargetTarget",""),("depsTargetTargetPropagated",""),("doCheck",""),("doInstallCheck",""),("makeFlags","PREFIX=/1rz4g4znpzjwh1xymhjpm42vipw92pr73vdgl6xs1hycac8kf2n9 UDEVLIBDIR=/1rz4g4znpzjwh1xymhjpm42vipw92pr73vdgl6xs1hycac8kf2n9/lib/udev/"),("name","bcache-tools-1.0.7"),("nativeBuildInputs","/1kw0rwgdyq9q69wmmsa5d2kap6p52b0yldbzi4w17bhcq5g5cp2f"),("out","/1rz4g4znpzjwh1xymhjpm42vipw92pr73vdgl6xs1hycac8kf2n9"),("outputHashAlgo","sha256"),("outputHashMode","recursive"),("outputs","out"),("patches","/nix/store/2q3z7587yhlz0i2xvfvvap42zk5carlv-bcache-udev-modern.patch /nix/store/03sl46khd8gmjpsad7223m32ma965vy9-fix-static.patch"),("pname","bcache-tools"),("preBuild","sed -e \"s|/bin/sh|/0g15yibzzi3rmw29gqlbms05x9dbghbvh61v1qggydvmzh3bginw/bin/sh|\" -i *.rules\n"),("preInstall","mkdir -p \"$out/sbin\" \"$out/lib/udev/rules.d\" \"$out/share/man/man8\"\n"),("prePatch","sed -e \"/INSTALL.*initramfs\\/hook/d\" \\\n -e \"/INSTALL.*initcpio\\/install/d\" \\\n -e \"/INSTALL.*dracut\\/module-setup.sh/d\" \\\n -e \"s/pkg-config/$PKG_CONFIG/\" \\\n -i Makefile\n"),("propagatedBuildInputs",""),("propagatedNativeBuildInputs",""),("src","/nix/store/6izcafvfcbz19chi7hl20834g0fa043n-source"),("stdenv","/01ncyv8bxibj0imgfvmxgqy648n697bachil6aw6i46g1jk0bbds"),("strictDeps",""),("system","x86_64-linux"),("version","1.0.7")])
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"#;
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// we convert everything into strings because it is way easier to compare elements in error messages
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let refs: Vec<&str> = StoreRefScanner::new(drv, &*SPEC_DFL_NIX2)
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.map(|i| core::str::from_utf8(i).unwrap())
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.collect();
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let refs_expect: Vec<&[u8]> = vec![
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b"2ax7bvjdfkzim69q957i0jlg0nvmapg0-util-linux-2.37.2.drv",
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b"6b55ssmh8pzqsc4q4kw1yl3kqvr4fvqj-bash-5.1-p12.drv",
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b"fp2vx24kczlzv84avds28wyzsmrn8kyv-source.drv",
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b"s6c2lm5hpsvdwnxq9y1g3ngncghjzc3k-stdenv-linux.drv",
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b"xlnzpf4mzghi8vl0krabrgcbnqk5qjf3-pkg-config-wrapper-0.29.2.drv",
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b"03sl46khd8gmjpsad7223m32ma965vy9-fix-static.patch",
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b"2q3z7587yhlz0i2xvfvvap42zk5carlv-bcache-udev-modern.patch",
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b"9krlzvny65gdc8s7kpb6lkx8cd02c25b-default-builder.sh",
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b"9krlzvny65gdc8s7kpb6lkx8cd02c25b-default-builder.sh",
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b"2q3z7587yhlz0i2xvfvvap42zk5carlv-bcache-udev-modern.patch",
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b"03sl46khd8gmjpsad7223m32ma965vy9-fix-static.patch",
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b"6izcafvfcbz19chi7hl20834g0fa043n-source",
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];
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let refs_expect: Vec<&str> = refs_expect
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.into_iter()
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.map(|i| core::str::from_utf8(i).unwrap())
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.collect();
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assert_eq!(refs, refs_expect);
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}
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#[test]
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fn simple_yzix1() {
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// I haven't yet produced any yzix derivation which included /yzixs absolute paths...
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let fake: &[u8] = br#"
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/yzixs/4Zx1PBoft1YyAuKdhjAY1seZFHloxQ+8voHQRkRMuys: ASCII text
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/yzixs/dNE3yogD4JHKHzNa2t3jQMZddT8wjqlMDB0naDIFo0A: ASCII text
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/yzixs/FMluSVOHLc4bxX7F4lBCXafNljBnDn+rAM5HzG7k8LI: unified diff output, ASCII text
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/yzixs/g2G3GRL87hGEdw9cq2BZWqDQP_HeHSPRLbJ9P9KH+HI: unified diff output, ASCII text
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/yzixs/H08Av1ZAONwFdzVLpFQm0Sc0dvyk0sbnk82waoBig7I: ASCII text
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/yzixs/IndARQp+gaGDLS3K+PeyXdaRqAcCyS3EIbRXkkYjC94: unified diff output, ASCII text
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/yzixs/IrLPnbkEolTAuWRxkXpuvVs6Imb1iB6wUJcI+fxWwkU: POSIX shell script, ASCII text executable
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/yzixs/JsS_H3n3TSh2R6fiIzgOPZdjSmRkV71vGxstJJKPmr4: unified diff output, ASCII text
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/yzixs/LZ6pQh1x8DRxZ2IYzetBRS4LuE__IXFjpOfQPxHVwpw: unified diff output, ASCII text
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/yzixs/mEi2RPep9daRs0JUvwt1JsDfgYSph5sH_+_ihwn8IGQ: ASCII text
|
||||
/yzixs/nd4DyljinP3auDMHL_LrpsRJkWQpSHQK2jqtyyzWcBA: POSIX shell script, ASCII text executable
|
||||
/yzixs/nzpaknF0_ONSHtd0i_e1E3pkLF1QPeJQhAB7x9Ogo_M: unified diff output, ASCII text
|
||||
/yzixs/UZ3uzVUUMC1gKGLw6tg_aLFwoFrJedXB3xbhEgQOaiY: unified diff output, ASCII text
|
||||
/yzixs/VKyXxKTXsDGxYJ24YgbvCc1bZkA5twp3TC+Gbi4Kwd8: unified diff output, ASCII text
|
||||
/yzixs/VPJMl8O1xkc1LsJznpoQrCrQO0Iy+ODCPsgoUBLiRZc: unified diff output, ASCII text
|
||||
/yzixs/W6r1ow001ASHRj+gtRfyj9Fb_gCO_pBztX8WhYXVdIc: unified diff output, ASCII text
|
||||
/yzixs/xvwEcXIob_rQynUEtQiQbwaDXEobTVKEGaBMir9oH9k: unified diff output, ASCII text
|
||||
/yzixs/ZPvQbRJrtyeSITvW3FUZvw99hhNOO3CFqGgmWgScxcg: ASCII text
|
||||
"#;
|
||||
let refs: Vec<&str> = StoreRefScanner::new(fake, &*SPEC_DFL_YZIX1)
|
||||
.map(|i| core::str::from_utf8(i).unwrap())
|
||||
.collect();
|
||||
let refs_expect: Vec<&[u8]> = vec![
|
||||
b"4Zx1PBoft1YyAuKdhjAY1seZFHloxQ+8voHQRkRMuys",
|
||||
b"dNE3yogD4JHKHzNa2t3jQMZddT8wjqlMDB0naDIFo0A",
|
||||
b"FMluSVOHLc4bxX7F4lBCXafNljBnDn+rAM5HzG7k8LI",
|
||||
b"g2G3GRL87hGEdw9cq2BZWqDQP_HeHSPRLbJ9P9KH+HI",
|
||||
b"H08Av1ZAONwFdzVLpFQm0Sc0dvyk0sbnk82waoBig7I",
|
||||
b"IndARQp+gaGDLS3K+PeyXdaRqAcCyS3EIbRXkkYjC94",
|
||||
b"IrLPnbkEolTAuWRxkXpuvVs6Imb1iB6wUJcI+fxWwkU",
|
||||
b"JsS_H3n3TSh2R6fiIzgOPZdjSmRkV71vGxstJJKPmr4",
|
||||
b"LZ6pQh1x8DRxZ2IYzetBRS4LuE__IXFjpOfQPxHVwpw",
|
||||
b"mEi2RPep9daRs0JUvwt1JsDfgYSph5sH_+_ihwn8IGQ",
|
||||
b"nd4DyljinP3auDMHL_LrpsRJkWQpSHQK2jqtyyzWcBA",
|
||||
b"nzpaknF0_ONSHtd0i_e1E3pkLF1QPeJQhAB7x9Ogo_M",
|
||||
b"UZ3uzVUUMC1gKGLw6tg_aLFwoFrJedXB3xbhEgQOaiY",
|
||||
b"VKyXxKTXsDGxYJ24YgbvCc1bZkA5twp3TC+Gbi4Kwd8",
|
||||
b"VPJMl8O1xkc1LsJznpoQrCrQO0Iy+ODCPsgoUBLiRZc",
|
||||
b"W6r1ow001ASHRj+gtRfyj9Fb_gCO_pBztX8WhYXVdIc",
|
||||
b"xvwEcXIob_rQynUEtQiQbwaDXEobTVKEGaBMir9oH9k",
|
||||
b"ZPvQbRJrtyeSITvW3FUZvw99hhNOO3CFqGgmWgScxcg",
|
||||
];
|
||||
let refs_expect: Vec<&str> = refs_expect
|
||||
.into_iter()
|
||||
.map(|i| core::str::from_utf8(i).unwrap())
|
||||
.collect();
|
||||
assert_eq!(refs, refs_expect);
|
||||
}
|
||||
|
||||
proptest::proptest! {
|
||||
#[test]
|
||||
fn nocrash_nix2(s: Vec<u8>) {
|
||||
let _ = StoreRefScanner::new(&s[..], &*SPEC_DFL_NIX2).count();
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn nocrash_yzix1(s: Vec<u8>) {
|
||||
let _ = StoreRefScanner::new(&s[..], &*SPEC_DFL_YZIX1).count();
|
||||
}
|
||||
}
|
||||
}
|
||||
46
users/zseri/store-ref-scanner/src/spec.rs
Normal file
46
users/zseri/store-ref-scanner/src/spec.rs
Normal file
|
|
@ -0,0 +1,46 @@
|
|||
use crate::hbm::HalfBytesMask;
|
||||
use camino::Utf8PathBuf;
|
||||
use once_cell::sync::Lazy;
|
||||
|
||||
pub struct StoreSpec {
|
||||
/// path to store without trailing slash
|
||||
pub path_to_store: Utf8PathBuf,
|
||||
|
||||
/// compressed map of allowed ASCII characters in hash part
|
||||
pub valid_hashbytes: HalfBytesMask,
|
||||
|
||||
/// compressed map of allowed ASCII characters in part after hash
|
||||
pub valid_restbytes: HalfBytesMask,
|
||||
|
||||
/// exact length of hash part of store paths
|
||||
pub hashbytes_len: u8,
|
||||
}
|
||||
|
||||
impl StoreSpec {
|
||||
pub(crate) fn check_rest(&self, rest: &[u8]) -> bool {
|
||||
let hbl = self.hashbytes_len.into();
|
||||
rest.iter()
|
||||
.take(hbl)
|
||||
.take_while(|&&i| self.valid_hashbytes.contains(i))
|
||||
.count()
|
||||
== hbl
|
||||
}
|
||||
}
|
||||
|
||||
pub static SPEC_DFL_NIX2: Lazy<StoreSpec> = Lazy::new(|| StoreSpec {
|
||||
path_to_store: "/nix/store".into(),
|
||||
valid_hashbytes: HalfBytesMask::B32_REVSHA256,
|
||||
valid_restbytes: HalfBytesMask::from_bytes(
|
||||
b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-._?=",
|
||||
),
|
||||
hashbytes_len: 32,
|
||||
});
|
||||
|
||||
pub static SPEC_DFL_YZIX1: Lazy<StoreSpec> = Lazy::new(|| StoreSpec {
|
||||
path_to_store: "/yzixs".into(),
|
||||
valid_hashbytes: HalfBytesMask::B64_BLAKE2B256,
|
||||
valid_restbytes: HalfBytesMask::from_bytes(
|
||||
b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-._?=",
|
||||
),
|
||||
hashbytes_len: 43,
|
||||
});
|
||||
Loading…
Add table
Add a link
Reference in a new issue