mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 08:21:14 +00:00
33 lines
1.3 KiB
Diff
33 lines
1.3 KiB
Diff
From 94c821c74bf5fe0c25e09df5334a16f98608db90 Mon Sep 17 00:00:00 2001
|
|
From: Seth David Schoen <schoen@loyalty.org>
|
|
Date: Wed, 12 May 2021 21:37:49 -0700
|
|
Subject: [PATCH] ip: Treat IPv4 segment's lowest address as unicast
|
|
|
|
Treat only the highest, not the lowest, IPv4 address within a local
|
|
subnet as a broadcast address.
|
|
|
|
Signed-off-by: Seth David Schoen <schoen@loyalty.org>
|
|
Suggested-by: John Gilmore <gnu@toad.com>
|
|
Acked-by: Dave Taht <dave.taht@gmail.com>
|
|
Reviewed-by: David Ahern <dsahern@kernel.org>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Link: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=94c821c74bf5
|
|
---
|
|
net/ipv4/fib_frontend.c | 4 +---
|
|
1 file changed, 1 insertion(+), 3 deletions(-)
|
|
|
|
--- a/net/ipv4/fib_frontend.c
|
|
+++ b/net/ipv4/fib_frontend.c
|
|
@@ -1132,10 +1132,8 @@ void fib_add_ifaddr(struct in_ifaddr *if
|
|
prefix, ifa->ifa_prefixlen, prim,
|
|
ifa->ifa_rt_priority);
|
|
|
|
- /* Add network specific broadcasts, when it takes a sense */
|
|
+ /* Add the network broadcast address, when it makes sense */
|
|
if (ifa->ifa_prefixlen < 31) {
|
|
- fib_magic(RTM_NEWROUTE, RTN_BROADCAST, prefix, 32,
|
|
- prim, 0);
|
|
fib_magic(RTM_NEWROUTE, RTN_BROADCAST, prefix | ~mask,
|
|
32, prim, 0);
|
|
arp_invalidate(dev, prefix | ~mask, false);
|