From a200cedb4ba5306faab59f0bee37e48265b2f9c3 Mon Sep 17 00:00:00 2001
From: Stephen Akridge <sakridge@gmail.com>
Date: Wed, 8 Aug 2018 01:26:16 +0000
Subject: [PATCH] Lower UDP data size to 64k - 128 bytes

rust API gives errors for packets larger than ~65500 and
wikipedia says 65507 is the max size, lowering this avoids the errors.
---
 src/packet.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/packet.rs b/src/packet.rs
index 6687693d48..f80b37ac2f 100644
--- a/src/packet.rs
+++ b/src/packet.rs
@@ -20,7 +20,7 @@ pub type PacketRecycler = Recycler<Packets>;
 pub type BlobRecycler = Recycler<Blob>;
 
 pub const NUM_PACKETS: usize = 1024 * 8;
-pub const BLOB_SIZE: usize = 64 * 1024;
+pub const BLOB_SIZE: usize = (64 * 1024 - 128); // wikipedia says there should be 20b for ipv4 headers
 pub const BLOB_DATA_SIZE: usize = BLOB_SIZE - BLOB_HEADER_SIZE;
 pub const PACKET_DATA_SIZE: usize = 256;
 pub const NUM_BLOBS: usize = (NUM_PACKETS * PACKET_DATA_SIZE) / BLOB_SIZE;