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ipv4/fib_frontend: Allow RTM_F_CLONED flag to be used for filtering 

This functionally reverts the check introduced by commit
e8ba330ac0 ("rtnetlink: Update fib dumps for strict data checking")
as modified by commit e4e92fb160 ("net/ipv4: Bail early if user only
wants prefix entries").

As we are preparing to fix listing of IPv4 cached routes, we need to
give userspace a way to request them.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefano Brivio 2019-06-21 17:45:21 +02:00 committed by David S. Miller
parent 564c91f7e5
commit b597ca6e83
1 changed files with 2 additions and 2 deletions
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4
net/ipv4/fib_frontend.c
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@ -987,8 +987,8 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
filter.flags = rtm->rtm_flags & (RTM_F_PREFIX | RTM_F_CLONED);
}
/* fib entries are never clones and ipv4 does not use prefix flag */
if (filter.flags & (RTM_F_PREFIX | RTM_F_CLONED))
/* ipv4 does not use prefix flag */
if (filter.flags & RTM_F_PREFIX)
return skb->len;
if (filter.table_id) {