From: Stephen Suryaputra Date: Fri, 1 Jun 2018 04:05:21 +0000 (-0400) Subject: vrf: check the original netdevice for generating redirect X-Git-Tag: v4.18-rc1~114^2~60 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=2f17becfbea5e9a0529b51da7345783e96e69516;p=linux.git vrf: check the original netdevice for generating redirect Use the right device to determine if redirect should be sent especially when using vrf. Same as well as when sending the redirect. Signed-off-by: Stephen Suryaputra Acked-by: David Ahern Signed-off-by: David S. Miller --- diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 60b0d1652448..021e5aef6ba3 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -482,7 +482,8 @@ int ip6_forward(struct sk_buff *skb) send redirects to source routed frames. We don't send redirects to frames decapsulated from IPsec. */ - if (skb->dev == dst->dev && opt->srcrt == 0 && !skb_sec_path(skb)) { + if (IP6CB(skb)->iif == dst->dev->ifindex && + opt->srcrt == 0 && !skb_sec_path(skb)) { struct in6_addr *target = NULL; struct inet_peer *peer; struct rt6_info *rt; diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 9ac5366064e3..e640d2f3c55c 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1578,6 +1578,12 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target) ops_data_buf[NDISC_OPS_REDIRECT_DATA_SPACE], *ops_data = NULL; bool ret; + if (netif_is_l3_master(skb->dev)) { + dev = __dev_get_by_index(dev_net(skb->dev), IPCB(skb)->iif); + if (!dev) + return; + } + if (ipv6_get_lladdr(dev, &saddr_buf, IFA_F_TENTATIVE)) { ND_PRINTK(2, warn, "Redirect: no link-local address on %s\n", dev->name);