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Commit 08e814c9 authored by David Ahern's avatar David Ahern Committed by David S. Miller
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net/ipv6: Bail early if user only wants cloned entries 



Similar to IPv4, IPv6 fib no longer contains cloned routes. If a user
requests a route dump for only cloned entries, no sense walking the FIB
and returning everything.

Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 196cfebf

net/ipv6/ip6_fib.c

+5 −2
Original line number Original line Diff line number Diff line
@@ -586,10 +586,13 @@ static int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb) 
	} else if (nlmsg_len(nlh) >= sizeof(struct rtmsg)) {

	} else if (nlmsg_len(nlh) >= sizeof(struct rtmsg)) {

		struct rtmsg *rtm = nlmsg_data(nlh);

		struct rtmsg *rtm = nlmsg_data(nlh);





		if (rtm->rtm_flags & RTM_F_PREFIX)

		arg.filter.flags = rtm->rtm_flags & (RTM_F_PREFIX|RTM_F_CLONED);

			arg.filter.flags = RTM_F_PREFIX;

	}

	}





	/* fib entries are never clones */

	if (arg.filter.flags & RTM_F_CLONED)

		return skb->len;



	w = (void *)cb->args[2];

	w = (void *)cb->args[2];

	if (!w) {

	if (!w) {

		/* New dump:

		/* New dump: