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authorIdo Schimmel <idosch@nvidia.com>2024-09-05 19:51:35 +0300
committerDavid S. Miller <davem@davemloft.net>2024-09-09 14:14:53 +0100
commitc2b639f9f3b7a058ca9c7349b096f355773f2cd8 (patch)
treedf784d5c08ec46d130915fd6e4ca595e337ad90e
parentc34cfe72bb260fc49660d9e6a9ba95ba01669ae2 (diff)
ipv4: ip_tunnel: Unmask upper DSCP bits in ip_tunnel_xmit()
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. Note that the 'tos' variable includes the full DS field. Either the one specified as part of the tunnel parameters or the one inherited from the inner packet. 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/ip_tunnel.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 09e0effcd034..d591c73e2c0e 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -773,7 +773,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
}
ip_tunnel_init_flow(&fl4, protocol, dst, tnl_params->saddr,
- tunnel->parms.o_key, RT_TOS(tos),
+ tunnel->parms.o_key, tos & INET_DSCP_MASK,
dev_net(dev), READ_ONCE(tunnel->parms.link),
tunnel->fwmark, skb_get_hash(skb), 0);