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Commit d71314b4 authored by Matti Vaittinen's avatar Matti Vaittinen Committed by David S. Miller
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IPv6 routing, NLM_F_* flag support: warn if new route is created without NLM_F_CREATE 



The support for NLM_F_* flags at IPv6 routing requests.

Warn if NLM_F_CREATE flag is not defined for RTM_NEWROUTE request,
creating new table. Later NLM_F_CREATE may be required for
new route creation.

Patch created against linux-3.2-rc1

Signed-off-by: default avatarMatti Vaittinen <Mazziesaccount@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent abbd00b8

net/ipv6/route.c

+11 −2
Original line number Original line Diff line number Diff line
@@ -1230,9 +1230,18 @@ int ip6_route_add(struct fib6_config *cfg) 
	if (cfg->fc_metric == 0)

	if (cfg->fc_metric == 0)

		cfg->fc_metric = IP6_RT_PRIO_USER;

		cfg->fc_metric = IP6_RT_PRIO_USER;





	err = -ENOBUFS;

	if (NULL != cfg->fc_nlinfo.nlh &&

	    !(cfg->fc_nlinfo.nlh->nlmsg_flags&NLM_F_CREATE)) {

		table = fib6_get_table(net, cfg->fc_table);

		if (table == NULL) {

			printk(KERN_WARNING "IPv6: NLM_F_CREATE should be specified when creating new route\n");

			table = fib6_new_table(net, cfg->fc_table);

			table = fib6_new_table(net, cfg->fc_table);

		}

	} else {

		table = fib6_new_table(net, cfg->fc_table);

	}

	if (table == NULL) {

	if (table == NULL) {

		err = -ENOBUFS;

		goto out;

		goto out;

	}

	}