diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/fib_rules.c | 33 |
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; + } } |