[IPV4]: Enable use of 240/4 address space.
This short patch modifies the IPv4 networking to enable use of the
240.0.0.0/4 (aka "class-E") address space as propsed in the internet
draft draft-fuller-240space-00.txt.
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index fc01453..f80c761 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1154,7 +1154,7 @@
return;
if (new_gw == old_gw || !IN_DEV_RX_REDIRECTS(in_dev)
- || ipv4_is_multicast(new_gw) || ipv4_is_badclass(new_gw)
+ || ipv4_is_multicast(new_gw) || ipv4_is_lbcast(new_gw)
|| ipv4_is_zeronet(new_gw))
goto reject_redirect;
@@ -1634,7 +1634,7 @@
if (in_dev == NULL)
return -EINVAL;
- if (ipv4_is_multicast(saddr) || ipv4_is_badclass(saddr) ||
+ if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr) ||
ipv4_is_loopback(saddr) || skb->protocol != htons(ETH_P_IP))
goto e_inval;
@@ -1891,7 +1891,7 @@
by fib_lookup.
*/
- if (ipv4_is_multicast(saddr) || ipv4_is_badclass(saddr) ||
+ if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr) ||
ipv4_is_loopback(saddr))
goto martian_source;
@@ -1904,7 +1904,7 @@
if (ipv4_is_zeronet(saddr))
goto martian_source;
- if (ipv4_is_badclass(daddr) || ipv4_is_zeronet(daddr) ||
+ if (ipv4_is_lbcast(daddr) || ipv4_is_zeronet(daddr) ||
ipv4_is_loopback(daddr))
goto martian_destination;
@@ -2125,7 +2125,7 @@
res->type = RTN_BROADCAST;
else if (ipv4_is_multicast(fl->fl4_dst))
res->type = RTN_MULTICAST;
- else if (ipv4_is_badclass(fl->fl4_dst) || ipv4_is_zeronet(fl->fl4_dst))
+ else if (ipv4_is_lbcast(fl->fl4_dst) || ipv4_is_zeronet(fl->fl4_dst))
return -EINVAL;
if (dev_out->flags & IFF_LOOPBACK)
@@ -2276,7 +2276,7 @@
if (oldflp->fl4_src) {
err = -EINVAL;
if (ipv4_is_multicast(oldflp->fl4_src) ||
- ipv4_is_badclass(oldflp->fl4_src) ||
+ ipv4_is_lbcast(oldflp->fl4_src) ||
ipv4_is_zeronet(oldflp->fl4_src))
goto out;