From: David Ahern <dsah...@gmail.com>
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: David Ahern <dsah...@gmail.com>
---
net/ipv6/ip6_fib.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index dd6a43874192..0399fafc5136 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -583,10 +583,13 @@ static int inet6_dump_fib(struct sk_buff *skb, struct
netlink_callback *cb)
} else if (nlmsg_len(nlh) >= sizeof(struct rtmsg)) {
struct rtmsg *rtm = nlmsg_data(nlh);
- if (rtm->rtm_flags & RTM_F_PREFIX)
- arg.filter.flags = RTM_F_PREFIX;
+ arg.filter.flags = rtm->rtm_flags & (RTM_F_PREFIX |
RTM_F_CLONED);
}
+ /* fib entries are never clones */
+ if (arg.filter.flags & RTM_F_CLONED)
+ return skb->len;
+
s_h = cb->args[0];
s_e = cb->args[1];
--
2.11.0
