udp: add gso segment cmsg

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Allow specifying segment size in the send call.

The new control message performs the same function as socket option
UDP_SEGMENT while avoiding the extra system call.

[ Export udp_cmsg_send for ipv6. -DaveM ]

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Willem de Bruijn 2018-04-26 13:42:20 -04:00 • committed by David S. Miller

parent 15e36f5b8e

commit 2e8de85763

3 changed files with 47 additions and 3 deletions

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1

include/net/udp.h

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44

net/ipv4/udp.c

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5

net/ipv6/udp.c

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