d2d273ffab
Without this fix, ipv6_exthdrs_offload_init doesn't register IPPROTO_DSTOPTS offload, but returns 0 (as the IPPROTO_ROUTING registration actually succeeds). This then causes the ipv6_gso_segment to drop IPv6 packets with IPPROTO_DSTOPTS header. The issue detected and the fix verified by running MS HCK Offload LSO test on top of QEMU Windows guests, as this test sends IPv6 packets with IPPROTO_DSTOPTS. Signed-off-by: Anton Nayshtut <anton@swortex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
42 lines
935 B
C
42 lines
935 B
C
/*
|
|
* IPV6 GSO/GRO offload support
|
|
* Linux INET6 implementation
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*
|
|
* IPV6 Extension Header GSO/GRO support
|
|
*/
|
|
#include <net/protocol.h>
|
|
#include "ip6_offload.h"
|
|
|
|
static const struct net_offload rthdr_offload = {
|
|
.flags = INET6_PROTO_GSO_EXTHDR,
|
|
};
|
|
|
|
static const struct net_offload dstopt_offload = {
|
|
.flags = INET6_PROTO_GSO_EXTHDR,
|
|
};
|
|
|
|
int __init ipv6_exthdrs_offload_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = inet6_add_offload(&rthdr_offload, IPPROTO_ROUTING);
|
|
if (ret)
|
|
goto out;
|
|
|
|
ret = inet6_add_offload(&dstopt_offload, IPPROTO_DSTOPTS);
|
|
if (ret)
|
|
goto out_rt;
|
|
|
|
out:
|
|
return ret;
|
|
|
|
out_rt:
|
|
inet_del_offload(&rthdr_offload, IPPROTO_ROUTING);
|
|
goto out;
|
|
}
|