From: Ido Schimmel Date: Thu, 29 Aug 2024 06:54:48 +0000 (+0300) Subject: ipv4: Unmask upper DSCP bits in RTM_GETROUTE output route lookup X-Git-Tag: v6.12-rc1~232^2~133^2~11 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=47afa284b96c62bda127604e6091fd5c9fd7e42c;p=thirdparty%2Fkernel%2Flinux.git ipv4: Unmask upper DSCP bits in RTM_GETROUTE output route lookup Unmask the upper DSCP bits when looking up an output route via the RTM_GETROUTE netlink message so that in the future the lookup could be performed according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel Reviewed-by: Guillaume Nault Signed-off-by: David S. Miller --- diff --git a/net/ipv4/route.c b/net/ipv4/route.c index f6972b24664a0..e4b45aa184701 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -3261,7 +3261,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, fl4.daddr = dst; fl4.saddr = src; - fl4.flowi4_tos = rtm->rtm_tos & IPTOS_RT_MASK; + fl4.flowi4_tos = rtm->rtm_tos & INET_DSCP_MASK; fl4.flowi4_oif = tb[RTA_OIF] ? nla_get_u32(tb[RTA_OIF]) : 0; fl4.flowi4_mark = mark; fl4.flowi4_uid = uid;