diff options
Diffstat (limited to 'net/ipv4/route.c')
| -rw-r--r-- | net/ipv4/route.c | 45 |
1 files changed, 9 insertions, 36 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 264617c98c2..85d103fee88 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -850,7 +850,7 @@ void ip_rt_send_redirect(struct sk_buff *skb) peer->rate_tokens == ip_rt_redirect_number) net_warn_ratelimited("host %pI4/if%d ignores redirects for %pI4 to %pI4\n", &ip_hdr(skb)->saddr, rt->rt_iif, - &rt->rt_dst, &rt->rt_gateway); + &ip_hdr(skb)->daddr, &rt->rt_gateway); #endif } out_put_peer: @@ -1132,8 +1132,7 @@ static unsigned int ipv4_mtu(const struct dst_entry *dst) mtu = dst->dev->mtu; if (unlikely(dst_metric_locked(dst, RTAX_MTU))) { - - if (rt->rt_gateway != rt->rt_dst && mtu > 576) + if (rt->rt_gateway != 0 && mtu > 576) mtu = 576; } @@ -1271,7 +1270,6 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr, rth->rt_genid = rt_genid(dev_net(dev)); rth->rt_flags = RTCF_MULTICAST; rth->rt_type = RTN_MULTICAST; - rth->rt_dst = daddr; rth->rt_route_iif = dev->ifindex; rth->rt_iif = dev->ifindex; rth->rt_oif = 0; @@ -1390,7 +1388,6 @@ static int __mkroute_input(struct sk_buff *skb, rth->rt_genid = rt_genid(dev_net(rth->dst.dev)); rth->rt_flags = flags; rth->rt_type = res->type; - rth->rt_dst = daddr; rth->rt_route_iif = in_dev->dev->ifindex; rth->rt_iif = in_dev->dev->ifindex; rth->rt_oif = 0; @@ -1556,7 +1553,6 @@ local_input: rth->rt_genid = rt_genid(net); rth->rt_flags = flags|RTCF_LOCAL; rth->rt_type = res.type; - rth->rt_dst = daddr; rth->rt_route_iif = dev->ifindex; rth->rt_iif = dev->ifindex; rth->rt_oif = 0; @@ -1707,7 +1703,6 @@ static struct rtable *__mkroute_output(const struct fib_result *res, rth->rt_genid = rt_genid(dev_net(dev_out)); rth->rt_flags = flags; rth->rt_type = type; - rth->rt_dst = fl4->daddr; rth->rt_route_iif = 0; rth->rt_iif = orig_oif ? : dev_out->ifindex; rth->rt_oif = orig_oif; @@ -1995,7 +1990,6 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or rt->rt_genid = rt_genid(net); rt->rt_flags = ort->rt_flags; rt->rt_type = ort->rt_type; - rt->rt_dst = ort->rt_dst; rt->rt_gateway = ort->rt_gateway; rt->fi = ort->fi; if (rt->fi) @@ -2026,9 +2020,9 @@ struct rtable *ip_route_output_flow(struct net *net, struct flowi4 *flp4, } EXPORT_SYMBOL_GPL(ip_route_output_flow); -static int rt_fill_info(struct net *net, __be32 src, struct flowi4 *fl4, - struct sk_buff *skb, u32 pid, u32 seq, int event, - int nowait, unsigned int flags) +static int rt_fill_info(struct net *net, __be32 dst, __be32 src, + struct flowi4 *fl4, struct sk_buff *skb, u32 pid, + u32 seq, int event, int nowait, unsigned int flags) { struct rtable *rt = skb_rtable(skb); struct rtmsg *r; @@ -2056,7 +2050,7 @@ static int rt_fill_info(struct net *net, __be32 src, struct flowi4 *fl4, if (rt->rt_flags & RTCF_NOTIFY) r->rtm_flags |= RTM_F_NOTIFY; - if (nla_put_be32(skb, RTA_DST, rt->rt_dst)) + if (nla_put_be32(skb, RTA_DST, dst)) goto nla_put_failure; if (src) { r->rtm_src_len = 32; @@ -2100,29 +2094,8 @@ static int rt_fill_info(struct net *net, __be32 src, struct flowi4 *fl4, } if (rt_is_input_route(rt)) { -#ifdef CONFIG_IP_MROUTE - __be32 dst = rt->rt_dst; - - if (ipv4_is_multicast(dst) && !ipv4_is_local_multicast(dst) && - IPV4_DEVCONF_ALL(net, MC_FORWARDING)) { - int err = ipmr_get_route(net, skb, - fl4->saddr, fl4->daddr, - r, nowait); - if (err <= 0) { - if (!nowait) { - if (err == 0) - return 0; - goto nla_put_failure; - } else { - if (err == -EMSGSIZE) - goto nla_put_failure; - error = err; - } - } - } else -#endif - if (nla_put_u32(skb, RTA_IIF, rt->rt_iif)) - goto nla_put_failure; + if (nla_put_u32(skb, RTA_IIF, rt->rt_iif)) + goto nla_put_failure; } if (rtnl_put_cacheinfo(skb, &rt->dst, 0, expires, error) < 0) @@ -2217,7 +2190,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void if (rtm->rtm_flags & RTM_F_NOTIFY) rt->rt_flags |= RTCF_NOTIFY; - err = rt_fill_info(net, src, &fl4, skb, + err = rt_fill_info(net, dst, src, &fl4, skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq, RTM_NEWROUTE, 0, 0); if (err <= 0) |