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net/ip: return success if the packet was forwarded. 

The incoming packet should not be input to ip layer if the packet has been forwarded

Signed-off-by: chao an <anchao@xiaomi.com>
This commit is contained in:
chao an 2022-12-05 00:33:41 +08:00 committed by Alan Carvalho de Assis
parent 53a63c517a
commit 8fc1e524ab
2 changed files with 33 additions and 2 deletions
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25
net/devif/ipv4_input.c
View File

@ -255,8 +255,15 @@ static int ipv4_in(FAR struct net_driver_s *dev)
/* Forward broadcast packets */
ipv4_forward_broadcast(dev, ipv4);
/* Process the incoming packet if not forwardable */
if (dev->d_len > 0)
#endif
ret = udp_ipv4_input(dev);
{
ret = udp_ipv4_input(dev);
}
goto done;
}
else
@ -276,8 +283,15 @@ static int ipv4_in(FAR struct net_driver_s *dev)
/* Forward broadcast packets */
ipv4_forward_broadcast(dev, ipv4);
/* Process the incoming packet if not forwardable */
if (dev->d_len > 0)
#endif
ret = udp_ipv4_input(dev);
{
ret = udp_ipv4_input(dev);
}
goto done;
}
else
@ -298,6 +312,13 @@ static int ipv4_in(FAR struct net_driver_s *dev)
/* Forward multicast packets */
ipv4_forward_broadcast(dev, ipv4);
/* Return success if the packet was forwarded. */
if (dev->d_len == 0)
{
goto done;
}
#endif
}
else

10
net/devif/ipv6_input.c
View File

@ -395,6 +395,16 @@ static int ipv6_in(FAR struct net_driver_s *dev)
}
}
}
#ifdef CONFIG_NET_IPFORWARD
/* Return success if the packet was forwarded. */
if (dev->d_len == 0)
{
goto done;
}
#endif
#ifdef CONFIG_NET_ICMPv6
/* In other cases, the device must be assigned a non-zero IP address