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| author | Rami Rosen <ramirose@gmail.com> | 2008-01-09 00:18:24 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 15:01:07 -0800 |
| commit | cb7928a528264a69b29b6001b490b64607ed0557 (patch) | |
| tree | 250a296f668275eb628e6dd1f83c221f0afae422 | |
| parent | f0b5a0dcf125ce43855961ef4f965a91112bea23 (diff) | |
| download | linux-stable-cb7928a528264a69b29b6001b490b64607ed0557.tar.gz linux-stable-cb7928a528264a69b29b6001b490b64607ed0557.tar.bz2 linux-stable-cb7928a528264a69b29b6001b490b64607ed0557.zip | |
[IPV4]: Remove unsupported DNAT (RTCF_NAT and RTCF_NAT) in IPV4
- The DNAT (Destination NAT) is not implemented in IPV4.
- This patch remove the code which checks these flags
in net/ipv4/arp.c and net/ipv4/route.c.
The RTCF_NAT and RTCF_NAT should stay in the header (linux/in_route.h)
because they are used in DECnet.
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/arp.c | 5 | ||||
| -rw-r--r-- | net/ipv4/route.c | 4 |
2 files changed, 4 insertions, 5 deletions
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c index 9eb6d3ab2977..46edf1c32a40 100644 --- a/net/ipv4/arp.c +++ b/net/ipv4/arp.c @@ -835,9 +835,8 @@ static int arp_process(struct sk_buff *skb) } goto out; } else if (IN_DEV_FORWARD(in_dev)) { - if ((rt->rt_flags&RTCF_DNAT) || - (addr_type == RTN_UNICAST && rt->u.dst.dev != dev && - (arp_fwd_proxy(in_dev, rt) || pneigh_lookup(&arp_tbl, &init_net, &tip, dev, 0)))) { + if (addr_type == RTN_UNICAST && rt->u.dst.dev != dev && + (arp_fwd_proxy(in_dev, rt) || pneigh_lookup(&arp_tbl, &init_net, &tip, dev, 0))) { n = neigh_event_ns(&arp_tbl, sha, &sip, dev); if (n) neigh_release(n); diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 933b093721ea..78c4ce424a68 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1768,7 +1768,7 @@ static inline int __mkroute_input(struct sk_buff *skb, if (err) flags |= RTCF_DIRECTSRC; - if (out_dev == in_dev && err && !(flags & (RTCF_NAT | RTCF_MASQ)) && + if (out_dev == in_dev && err && !(flags & RTCF_MASQ) && (IN_DEV_SHARED_MEDIA(out_dev) || inet_addr_onlink(out_dev, saddr, FIB_RES_GW(*res)))) flags |= RTCF_DOREDIRECT; @@ -1777,7 +1777,7 @@ static inline int __mkroute_input(struct sk_buff *skb, /* Not IP (i.e. ARP). Do not create route, if it is * invalid for proxy arp. DNAT routes are always valid. */ - if (out_dev == in_dev && !(flags & RTCF_DNAT)) { + if (out_dev == in_dev) { err = -EINVAL; goto cleanup; } |