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-rw-r--r--net/core/fib_rules.c33
1 files changed, 32 insertions, 1 deletions
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 8e8028cdc87f..d1a70ad4b544 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -138,6 +138,9 @@ static int fib_rule_match(struct fib_rule *rule, struct fib_rules_ops *ops,
if (rule->iifindex && (rule->iifindex != fl->iif))
goto out;
+ if (rule->oifindex && (rule->oifindex != fl->oif))
+ goto out;
+
if ((rule->mark ^ fl->mark) & rule->mark_mask)
goto out;
@@ -258,6 +261,16 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
rule->iifindex = dev->ifindex;
}
+ if (tb[FRA_OIFNAME]) {
+ struct net_device *dev;
+
+ rule->oifindex = -1;
+ nla_strlcpy(rule->oifname, tb[FRA_OIFNAME], IFNAMSIZ);
+ dev = __dev_get_by_name(net, rule->oifname);
+ if (dev)
+ rule->oifindex = dev->ifindex;
+ }
+
if (tb[FRA_FWMARK]) {
rule->mark = nla_get_u32(tb[FRA_FWMARK]);
if (rule->mark)
@@ -392,6 +405,10 @@ static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
nla_strcmp(tb[FRA_IIFNAME], rule->iifname))
continue;
+ if (tb[FRA_OIFNAME] &&
+ nla_strcmp(tb[FRA_OIFNAME], rule->oifname))
+ continue;
+
if (tb[FRA_FWMARK] &&
(rule->mark != nla_get_u32(tb[FRA_FWMARK])))
continue;
@@ -448,6 +465,7 @@ static inline size_t fib_rule_nlmsg_size(struct fib_rules_ops *ops,
{
size_t payload = NLMSG_ALIGN(sizeof(struct fib_rule_hdr))
+ nla_total_size(IFNAMSIZ) /* FRA_IIFNAME */
+ + nla_total_size(IFNAMSIZ) /* FRA_OIFNAME */
+ nla_total_size(4) /* FRA_PRIORITY */
+ nla_total_size(4) /* FRA_TABLE */
+ nla_total_size(4) /* FRA_FWMARK */
@@ -488,6 +506,13 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule,
frh->flags |= FIB_RULE_IIF_DETACHED;
}
+ if (rule->oifname[0]) {
+ NLA_PUT_STRING(skb, FRA_OIFNAME, rule->oifname);
+
+ if (rule->oifindex == -1)
+ frh->flags |= FIB_RULE_OIF_DETACHED;
+ }
+
if (rule->pref)
NLA_PUT_U32(skb, FRA_PRIORITY, rule->pref);
@@ -603,6 +628,9 @@ static void attach_rules(struct list_head *rules, struct net_device *dev)
if (rule->iifindex == -1 &&
strcmp(dev->name, rule->iifname) == 0)
rule->iifindex = dev->ifindex;
+ if (rule->oifindex == -1 &&
+ strcmp(dev->name, rule->oifname) == 0)
+ rule->oifindex = dev->ifindex;
}
}
@@ -610,9 +638,12 @@ static void detach_rules(struct list_head *rules, struct net_device *dev)
{
struct fib_rule *rule;
- list_for_each_entry(rule, rules, list)
+ list_for_each_entry(rule, rules, list) {
if (rule->iifindex == dev->ifindex)
rule->iifindex = -1;
+ if (rule->oifindex == dev->ifindex)
+ rule->oifindex = -1;
+ }
}