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authorIdo Schimmel <idosch@nvidia.com>2024-09-05 19:51:31 +0300
committerDavid S. Miller <davem@davemloft.net>2024-09-09 14:14:52 +0100
commitb3899830aa47333fa73e7f23eddc856003fd8bda (patch)
tree5e27cb8deb9a3aeca3adfceb4ae3e8ec558f7495
parent25376a890119b616d5982c8cb59f805138ab81fa (diff)
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: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/core/lwt_bpf.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/lwt_bpf.c b/net/core/lwt_bpf.c
index afb05f58b64c..1a14f915b7a4 100644
--- a/net/core/lwt_bpf.c
+++ b/net/core/lwt_bpf.c
@@ -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;