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authorIdo Schimmel <idosch@nvidia.com>2024-09-05 19:51:39 +0300
committerDavid S. Miller <davem@davemloft.net>2024-09-09 14:14:53 +0100
commit2c60fc9ca21636e4bbb30357562dc1abb577f5fb (patch)
treefc15d70f258ca65a55c802759664cd563a266837
parent345663e6a727f6baa70989a8412c2c047389ca65 (diff)
ipv4: udp_tunnel: Unmask upper DSCP bits in udp_tunnel_dst_lookup()
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. Note that callers of udp_tunnel_dst_lookup() pass the entire DS field in the 'tos' argument. 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/ipv4/udp_tunnel_core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/udp_tunnel_core.c b/net/ipv4/udp_tunnel_core.c
index e4e0fa869fa4..619a53eb672d 100644
--- a/net/ipv4/udp_tunnel_core.c
+++ b/net/ipv4/udp_tunnel_core.c
@@ -6,6 +6,7 @@
#include <net/dst_metadata.h>
#include <net/udp.h>
#include <net/udp_tunnel.h>
+#include <net/inet_dscp.h>
int udp_sock_create4(struct net *net, struct udp_port_cfg *cfg,
struct socket **sockp)
@@ -232,7 +233,7 @@ struct rtable *udp_tunnel_dst_lookup(struct sk_buff *skb,
fl4.saddr = key->u.ipv4.src;
fl4.fl4_dport = dport;
fl4.fl4_sport = sport;
- fl4.flowi4_tos = RT_TOS(tos);
+ fl4.flowi4_tos = tos & INET_DSCP_MASK;
fl4.flowi4_flags = key->flow_flags;
rt = ip_route_output_key(net, &fl4);