diff options
Diffstat (limited to 'net/ipv6/route.c')
| -rw-r--r-- | net/ipv6/route.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index cb3366d5e165..194261acb87d 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -98,6 +98,12 @@ static void rt6_do_redirect(struct dst_entry *dst, struct sock *sk, struct sk_buff *skb); static void rt6_dst_from_metrics_check(struct rt6_info *rt); static int rt6_score_route(struct rt6_info *rt, int oif, int strict); +static size_t rt6_nlmsg_size(struct rt6_info *rt); +static int rt6_fill_node(struct net *net, + struct sk_buff *skb, struct rt6_info *rt, + struct in6_addr *dst, struct in6_addr *src, + int iif, int type, u32 portid, u32 seq, + unsigned int flags); #ifdef CONFIG_IPV6_ROUTE_INFO static struct rt6_info *rt6_add_route_info(struct net *net, @@ -2146,6 +2152,7 @@ int ip6_del_rt(struct rt6_info *rt) static int __ip6_del_rt_siblings(struct rt6_info *rt, struct fib6_config *cfg) { struct nl_info *info = &cfg->fc_nlinfo; + struct sk_buff *skb = NULL; struct fib6_table *table; int err; @@ -2155,6 +2162,20 @@ static int __ip6_del_rt_siblings(struct rt6_info *rt, struct fib6_config *cfg) if (rt->rt6i_nsiblings && cfg->fc_delete_all_nh) { struct rt6_info *sibling, *next_sibling; + /* prefer to send a single notification with all hops */ + skb = nlmsg_new(rt6_nlmsg_size(rt), gfp_any()); + if (skb) { + u32 seq = info->nlh ? info->nlh->nlmsg_seq : 0; + + if (rt6_fill_node(info->nl_net, skb, rt, + NULL, NULL, 0, RTM_DELROUTE, + info->portid, seq, 0) < 0) { + kfree_skb(skb); + skb = NULL; + } else + info->skip_notify = 1; + } + list_for_each_entry_safe(sibling, next_sibling, &rt->rt6i_siblings, rt6i_siblings) { @@ -2168,6 +2189,11 @@ static int __ip6_del_rt_siblings(struct rt6_info *rt, struct fib6_config *cfg) out: write_unlock_bh(&table->tb6_lock); ip6_rt_put(rt); + + if (skb) { + rtnl_notify(skb, info->nl_net, info->portid, RTNLGRP_IPV6_ROUTE, + info->nlh, gfp_any()); + } return err; } |