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Michael Brown e191298a1d [tcp] Calculate correct MSS from peer address

iPXE currently advertises a fixed MSS of 1460, which is correct only
for IPv4 over Ethernet.  For IPv6 over Ethernet, the value should be
1440 (allowing for the larger IPv6 header).  For non-Ethernet link
layers, the value should reflect the MTU of the underlying network
device.

Use tcpip_mtu() to calculate the transport-layer MTU associated with
the peer address, and calculate the MSS to allow for an optionless TCP
header as per RFC 6691.

As a side benefit, we can now fail a connection immediately with a
meaningful error message if we have no route to the destination
address.

Reported-by: Anton D. Kachalov <mouse@yandex-team.ru>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

2014-03-04 13:23:29 +00:00

contrib

[errdb] Strip platform error code for non-platform-generated errors

2013-04-29 15:36:32 +01:00

src

[tcp] Calculate correct MSS from peer address

2014-03-04 13:23:29 +00:00

COPYING

Initial revision

2005-05-17 16:44:57 +00:00

COPYRIGHTS

[build] Rename gPXE to iPXE

2010-04-19 23:43:39 +01:00

README

[doc] Re-add README file

2010-05-28 00:03:47 +01:00

README

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org

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