From: Ido Schimmel Date: Thu, 20 Feb 2025 08:05:20 +0000 (+0200) Subject: net: fib_rules: Add DSCP mask attribute X-Git-Tag: v6.15-rc1~160^2~248^2~5 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca4edd969a9483b1a1837056641019f62287063f;p=thirdparty%2Flinux.git net: fib_rules: Add DSCP mask attribute Add an attribute that allows matching on DSCP with a mask. Matching on DSCP with a mask is needed in deployments where users encode path information into certain bits of the DSCP field. Temporarily set the type of the attribute to 'NLA_REJECT' while support is being added. Reviewed-by: Petr Machata Signed-off-by: Ido Schimmel Reviewed-by: Guillaume Nault Link: https://patch.msgid.link/20250220080525.831924-2-idosch@nvidia.com Signed-off-by: Jakub Kicinski --- diff --git a/include/uapi/linux/fib_rules.h b/include/uapi/linux/fib_rules.h index 95ec01b15c654..2df6e4035d50b 100644 --- a/include/uapi/linux/fib_rules.h +++ b/include/uapi/linux/fib_rules.h @@ -72,6 +72,7 @@ enum { FRA_FLOWLABEL_MASK, /* flowlabel mask */ FRA_SPORT_MASK, /* sport mask */ FRA_DPORT_MASK, /* dport mask */ + FRA_DSCP_MASK, /* dscp mask */ __FRA_MAX }; diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index 5ddd34cbe7f6d..00e6fe79ecbaa 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -845,6 +845,7 @@ static const struct nla_policy fib_rule_policy[FRA_MAX + 1] = { [FRA_FLOWLABEL_MASK] = { .type = NLA_BE32 }, [FRA_SPORT_MASK] = { .type = NLA_U16 }, [FRA_DPORT_MASK] = { .type = NLA_U16 }, + [FRA_DSCP_MASK] = { .type = NLA_REJECT }, }; int fib_newrule(struct net *net, struct sk_buff *skb, struct nlmsghdr *nlh,