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preallocate nonce buffer

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This commit is contained in:
Jay Wren
2025-11-18 14:19:05 -05:00
parent 7c3708561d
commit 518a78c9d2
2 changed files with 5 additions and 3 deletions
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5
interface.go
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@@ -345,6 +345,9 @@ func (f *Interface) listenInBatch(reader io.ReadWriteCloser, batchReader BatchRe
batchPackets := make([][]byte, 0, batchSize)
batchAddrs := make([]netip.AddrPort, 0, batchSize)
// Pre-allocate nonce buffer (reused for all encryptions)
nb := make([]byte, 12, 12)
conntrackCache := firewall.NewConntrackCacheTicker(f.conntrackCacheTimeout)
tunBatchHist := metrics.GetOrRegisterHistogram("batch.tun_read_size", nil, metrics.NewUniformSample(1024))
@@ -364,7 +367,7 @@ func (f *Interface) listenInBatch(reader io.ReadWriteCloser, batchReader BatchRe
tunBatchHist.Update(int64(n))
// Process all packets in the batch at once
f.consumeInsidePackets(bufs, sizes, n, outs, i, conntrackCache.Get(f.l), &batchPackets, &batchAddrs)
f.consumeInsidePackets(bufs, sizes, n, outs, nb, i, conntrackCache.Get(f.l), &batchPackets, &batchAddrs)
}
}