Commit b3899830 authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller
Browse files

bpf: lwtunnel: Unmask upper DSCP bits in bpf_lwt_xmit_reroute() 



Unmask the upper DSCP bits when calling ip_route_output_key() so that in
the future it could perform the FIB lookup according to the full DSCP
value.

Signed-off-by: default avatarIdo Schimmel <idosch@nvidia.com>
Reviewed-by: default avatarGuillaume Nault <gnault@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 25376a89

net/core/lwt_bpf.c

+2 −1
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
#include <net/gre.h>

#include <net/ip6_route.h>

#include <net/ipv6_stubs.h>

#include <net/inet_dscp.h>



struct bpf_lwt_prog {

	struct bpf_prog *prog;
@@ -205,7 +206,7 @@ static int bpf_lwt_xmit_reroute(struct sk_buff *skb) 
		fl4.flowi4_oif = oif;

		fl4.flowi4_mark = skb->mark;

		fl4.flowi4_uid = sock_net_uid(net, sk);

		fl4.flowi4_tos = RT_TOS(iph->tos);

		fl4.flowi4_tos = iph->tos & INET_DSCP_MASK;

		fl4.flowi4_flags = FLOWI_FLAG_ANYSRC;

		fl4.flowi4_proto = iph->protocol;

		fl4.daddr = iph->daddr;