netdev - [PATCH] User mode linux bump maximum MTU tuntap interface

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <54cee375-f1c3-a2b3-ea89-919b0af60433@yandex.ru>
Date:   Mon, 1 Jul 2019 19:29:46 +0300
From:   Алексей <ne-vlezay80@...dex.ru>
To:     netdev@...r.kernel.org
Subject: [PATCH] User mode linux bump maximum MTU tuntap interface

Hello, the parameter  ETH_MAX_PACKET limited to 1500 bytes is the not
support jumbo frames.

This patch change ETH_MAX_PACKET the 65535 bytes to jumbo frame support
with user mode linux tuntap driver.


PATCH:

-------------------

diff -ruNp ./src/1/linux-5.1/arch/um/include/shared/net_user.h
./src/linux-5.1/$
--- ./arch/um/include/shared/net_user.h 2019-05-06 00:42:58.000000000 +0000
+++ ./arch/um/include/shared/net_user.h 2019-07-01 16:09:20.316666597 +0000
@@ -9,7 +9,7 @@
 #define ETH_ADDR_LEN (6)
 #define ETH_HEADER_ETHERTAP (16)
 #define ETH_HEADER_OTHER (26) /* 14 for ethernet + VLAN + MPLS for
crazy peopl$
-#define ETH_MAX_PACKET (1500)
+#define ETH_MAX_PACKET (65535)
 
 #define UML_NET_VERSION (4)