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 <[email protected]> --- net/ipv4/netfilter/nf_dup_ipv4.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipv4/netfilter/nf_dup_ipv4.c b/net/ipv4/netfilter/nf_dup_ipv4.c index 6cc5743c553a..f4aed0789d69 100644 --- a/net/ipv4/netfilter/nf_dup_ipv4.c +++ b/net/ipv4/netfilter/nf_dup_ipv4.c @@ -15,6 +15,7 @@ #include <net/icmp.h> #include <net/ip.h> #include <net/route.h> +#include <net/inet_dscp.h> #include <net/netfilter/ipv4/nf_dup_ipv4.h> #if IS_ENABLED(CONFIG_NF_CONNTRACK) #include <net/netfilter/nf_conntrack.h> @@ -32,7 +33,7 @@ static bool nf_dup_ipv4_route(struct net *net, struct sk_buff *skb, fl4.flowi4_oif = oif; fl4.daddr = gw->s_addr; - fl4.flowi4_tos = RT_TOS(iph->tos); + fl4.flowi4_tos = iph->tos & INET_DSCP_MASK; fl4.flowi4_scope = RT_SCOPE_UNIVERSE; fl4.flowi4_flags = FLOWI_FLAG_KNOWN_NH; rt = ip_route_output_key(net, &fl4); -- 2.46.0
