From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Tue, 11 Sep 2007 08:41:04 +0000 (+0200)
Subject: [IPV4] devinet: show all addresses assigned to interface
X-Git-Tag: firefly_0821_release~26564^2~8
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=596e41509550447b030f7b16adaeb0138ab585a8;p=firefly-linux-kernel-4.4.55.git

[IPV4] devinet: show all addresses assigned to interface

Bug: http://bugzilla.kernel.org/show_bug.cgi?id=8876

Not all ips are shown by "ip addr show" command when IPs number assigned to an
interface is more than 60-80 (in fact it depends on broadcast/label etc
presence on each address).

Steps to reproduce:
It's terribly simple to reproduce:

# for i in $(seq 1 100); do ip ad add 10.0.$i.1/24 dev eth10 ; done
# ip addr show

this will _not_ show all IPs.
Looks like the problem is in netlink/ipv4 message processing.

This is fix from bug submitter, it looks correct.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 5b77bdaa57dd..5dbe5803b7d5 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1193,7 +1193,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
 		for (ifa = in_dev->ifa_list, ip_idx = 0; ifa;
 		     ifa = ifa->ifa_next, ip_idx++) {
 			if (ip_idx < s_ip_idx)
-				goto cont;
+				continue;
 			if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid,
 					     cb->nlh->nlmsg_seq,
 					     RTM_NEWADDR, NLM_F_MULTI) <= 0)