lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ipv4: provide addr and netconf dump consistency info

Browse Source 
This patch takes benefit of dev_addr_genid and dev_base_seq to check if a change
occurs during a netlink dump. If a change is detected, the flag NLM_F_DUMP_INTR
is set in the first message after the dump was interrupted.

Note that seq and prev_seq must be reset between each family in rtnl_dump_all()
because they are specific to each family.

Reported-by: Junwei Zhang <junwei.zhang@6wind.com>
Reported-by: Hongjun Li <hongjun.li@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Dichtel
2013-03-22 06:28:42 +00:00
committed by David S. Miller
parent 976c90b901
commit 0465277f6b
2 changed files with 10 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
net/core/rtnetlink.c
View File

@ -1929,8 +1929,11 @@ static int rtnl_dump_all(struct sk_buff *skb, struct netlink_callback *cb)
if (rtnl_msg_handlers[idx] == NULL ||
rtnl_msg_handlers[idx][type].dumpit == NULL)
continue;
if (idx > s_idx)
if (idx > s_idx) {
memset(&cb->args[0], 0, sizeof(cb->args));
cb->prev_seq = 0;
cb->seq = 0;
}
if (rtnl_msg_handlers[idx][type].dumpit(skb, cb))
break;
}