From 6ef94cfafba159d6b1a902ccb3349ac6a34ff6ad Mon Sep 17 00:00:00 2001 From: Stefan Tomanek Date: Fri, 2 Aug 2013 17:19:56 +0200 Subject: fib_rules: add route suppression based on ifgroup This change adds the ability to suppress a routing decision based upon the interface group the selected interface belongs to. This allows it to exclude specific devices from a routing decision. Signed-off-by: Stefan Tomanek Signed-off-by: David S. Miller --- net/core/fib_rules.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'net/core/fib_rules.c') diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index 2ef5040c99c8..5040a61bf28a 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -343,6 +343,9 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh) if (tb[FRA_TABLE_PREFIXLEN_MIN]) rule->table_prefixlen_min = nla_get_u8(tb[FRA_TABLE_PREFIXLEN_MIN]); + if (tb[FRA_SUPPRESS_IFGROUP]) + rule->suppress_ifgroup = nla_get_u32(tb[FRA_SUPPRESS_IFGROUP]); + if (!tb[FRA_PRIORITY] && ops->default_pref) rule->pref = ops->default_pref(ops); @@ -529,6 +532,7 @@ static inline size_t fib_rule_nlmsg_size(struct fib_rules_ops *ops, + nla_total_size(4) /* FRA_PRIORITY */ + nla_total_size(4) /* FRA_TABLE */ + nla_total_size(1) /* FRA_TABLE_PREFIXLEN_MIN */ + + nla_total_size(4) /* FRA_SUPPRESS_IFGROUP */ + nla_total_size(4) /* FRA_FWMARK */ + nla_total_size(4); /* FRA_FWMASK */ @@ -588,6 +592,12 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule, (rule->target && nla_put_u32(skb, FRA_GOTO, rule->target))) goto nla_put_failure; + + if (rule->suppress_ifgroup != -1) { + if (nla_put_u32(skb, FRA_SUPPRESS_IFGROUP, rule->suppress_ifgroup)) + goto nla_put_failure; + } + if (ops->fill(rule, skb, frh) < 0) goto nla_put_failure; -- cgit