Re: [RFC PATCH net-next 4/7] net: ip: make fib_validate_source() return drop reason

[Antoine Tenart <atenart@xxxxxxxxxx>]

Quoting Menglong Dong (2024-09-19 11:41:44)
>  
> @@ -2339,8 +2345,11 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
>         if (!ipv4_is_zeronet(saddr)) {
>                 err = fib_validate_source(skb, saddr, 0, tos, 0, dev,
>                                           in_dev, &itag);
> -               if (err < 0)
> +               if (err < 0) {
> +                       err = -EINVAL;
> +                       __reason = -err;

That should be:

    __reason = -err;
    err = -EINVAL;


Also this patch should take care of the fib_validate_source call in
ip_mc_validate_source.

Thanks!
Antoine