netdev - Re: [PATCH net-next v4] net: ipv4: add support for ECMP hash policy choice

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20170316094152.0ac70537@xeon-e3>
Date:   Thu, 16 Mar 2017 09:41:52 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net,
        roopa@...ulusnetworks.com, dsa@...ulusnetworks.com,
        jkbs@...hat.com, edumazet@...gle.com, pch@...bogen.com,
        nicolas.dichtel@...nd.com
Subject: Re: [PATCH net-next v4] net: ipv4: add support for ECMP hash policy
 choice

On Thu, 16 Mar 2017 15:28:00 +0200
Nikolay Aleksandrov <nikolay@...ulusnetworks.com> wrote:

> diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
> index d6880a6149ee..62c4f94923e5 100644
> --- a/net/ipv4/sysctl_net_ipv4.c
> +++ b/net/ipv4/sysctl_net_ipv4.c
> @@ -1004,6 +1004,15 @@ static struct ctl_table ipv4_net_table[] = {
>  		.extra1		= &zero,
>  		.extra2		= &one,
>  	},
> +	{
> +		.procname	= "fib_multipath_hash_policy",
> +		.data		= &init_net.ipv4.sysctl_fib_multipath_hash_policy,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0644,
> +		.proc_handler	= proc_dointvec_minmax,
> +		.extra1		= &zero,
> +		.extra2		= &one,
> +	

Rather than having magic integer values, it would be better to use
strings (like TCP congestion control).  Especially if you want to support
more values in the future.

Also what about IPv6?