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Commit cb4a4c69 authored by Maciej Żenczykowski's avatar Maciej Żenczykowski Committed by David S. Miller
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ipv6 addrconf: disallow rtr_solicits < -1 



This disallows setting /proc/sys/net/ipv6/conf/*/router_solicitations
to values below -1.

-1 continues to mean an unlimited number of retransmits.

Note: this depends on 'ipv6 addrconf: remove addrconf_sysctl_hop_limit()'

Signed-off-by: default avatarMaciej Żenczykowski <maze@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7aa6ec22

net/ipv6/addrconf.c

+3 −1
Original line number Diff line number Diff line
@@ -5729,6 +5729,7 @@ int addrconf_sysctl_ignore_routes_with_linkdown(struct ctl_table *ctl, 
	return ret;

}



static int minus_one = -1;

static const int one = 1;

static const int two_five_five = 255;
@@ -5789,7 +5790,8 @@ static const struct ctl_table addrconf_sysctl[] = { 
		.data		= &ipv6_devconf.rtr_solicits,

		.maxlen		= sizeof(int),

		.mode		= 0644,

		.proc_handler	= proc_dointvec,

		.proc_handler	= proc_dointvec_minmax,

		.extra1		= &minus_one,

	},

	{

		.procname	= "router_solicitation_interval",