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

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

Message-ID: <fc526c78-2d3f-90ca-8317-a89eb653cbf9@yandex.ru>
Date:   Tue, 2 Jul 2019 15:55:17 +0300
From:   Алексей <ne-vlezay80@...dex.ru>
To:     netdev@...r.kernel.org
Subject: [PATCH] User mode linux bump maximum MTU tuntap interface [RESAND]

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 ../linux_orig/linux-5.1/arch/um/include/shared/net_user.h
./arch/um/include/shared/net_user.h
--- a/arch/um/include/shared/net_user.h    2019-05-06 00:42:58.000000000
+0000
+++ b/arch/um/include/shared/net_user.h    2019-07-02 07:14:13.593333356
+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 people */
-#define ETH_MAX_PACKET (1500)
+#define ETH_MAX_PACKET (65535)
 
 #define UML_NET_VERSION (4)
 
-------------------