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authorIdo Schimmel <[email protected]>2024-09-03 16:53:26 +0300
committerJakub Kicinski <[email protected]>2024-09-04 16:57:11 -0700
commitde1fb3e8b053bf29ab366ae56b43659e87985928 (patch)
treec0d98adc957470c5606f0899dfd2d45a93680367
parent97edbbaad30368c2e0219d21987ceba5a303ba5f (diff)
ip6_tunnel: Unmask upper DSCP bits in ip4ip6_err()
Unmask the upper DSCP bits when calling ip_route_output_ports() so that in the future it could perform the FIB lookup according to the full DSCP value. Signed-off-by: Ido Schimmel <[email protected]> Reviewed-by: Guillaume Nault <[email protected]> Reviewed-by: David Ahern <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
-rw-r--r--net/ipv6/ip6_tunnel.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index ec51ab5063e8..b60e13c42bca 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -53,6 +53,7 @@
#include <net/net_namespace.h>
#include <net/netns/generic.h>
#include <net/dst_metadata.h>
+#include <net/inet_dscp.h>
MODULE_AUTHOR("Ville Nuorvala");
MODULE_DESCRIPTION("IPv6 tunneling device");
@@ -608,7 +609,8 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
/* Try to guess incoming interface */
rt = ip_route_output_ports(dev_net(skb->dev), &fl4, NULL, eiph->saddr,
- 0, 0, 0, IPPROTO_IPIP, RT_TOS(eiph->tos), 0);
+ 0, 0, 0, IPPROTO_IPIP,
+ eiph->tos & INET_DSCP_MASK, 0);
if (IS_ERR(rt))
goto out;
@@ -619,7 +621,8 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (rt->rt_flags & RTCF_LOCAL) {
rt = ip_route_output_ports(dev_net(skb->dev), &fl4, NULL,
eiph->daddr, eiph->saddr, 0, 0,
- IPPROTO_IPIP, RT_TOS(eiph->tos), 0);
+ IPPROTO_IPIP,
+ eiph->tos & INET_DSCP_MASK, 0);
if (IS_ERR(rt) || rt->dst.dev->type != ARPHRD_TUNNEL6) {
if (!IS_ERR(rt))
ip_rt_put(rt);