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ipv4: ip_tunnel: Unmask upper DSCP bits in ip_tunnel_bind_dev()

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Unmask the upper DSCP bits when initializing an IPv4 flow key via
ip_tunnel_init_flow() before passing it to ip_route_output_key() so that
in the future we could perform the FIB lookup according to the full DSCP
value.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2024-09-05 19:51:33 +03:00 committed by David S. Miller
parent 848789d552
commit e7191e517a
1 changed files with 1 additions and 1 deletions
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2
net/ipv4/ip_tunnel.c
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@ -293,7 +293,7 @@ static int ip_tunnel_bind_dev(struct net_device *dev)
ip_tunnel_init_flow(&fl4, iph->protocol, iph->daddr,
iph->saddr, tunnel->parms.o_key,
RT_TOS(iph->tos), dev_net(dev),
iph->tos & INET_DSCP_MASK, dev_net(dev),
tunnel->parms.link, tunnel->fwmark, 0, 0);
rt = ip_route_output_key(tunnel->net, &fl4);