| Message ID | ea4d82977e7726dccd8e8f8e65c7fb523668100e.1322790334.git.panweiping3@gmail.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
From: Weiping Pan <panweiping3@gmail.com> Date: Fri, 2 Dec 2011 09:47:06 +0800 > After reset ipv4_devconf->data[IPV4_DEVCONF_ACCEPT_LOCAL] to 0, > we should flush route cache, or it will continue receive packets with local > source address, which should be dropped. > > Signed-off-by: Weiping Pan <panweiping3@gmail.com> Applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index c6b5092..65f01dc 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1490,7 +1490,9 @@ static int devinet_conf_proc(ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { + int old_value = *(int *)ctl->data; int ret = proc_dointvec(ctl, write, buffer, lenp, ppos); + int new_value = *(int *)ctl->data; if (write) { struct ipv4_devconf *cnf = ctl->extra1; @@ -1501,6 +1503,9 @@ static int devinet_conf_proc(ctl_table *ctl, int write, if (cnf == net->ipv4.devconf_dflt) devinet_copy_dflt_conf(net, i); + if (i == IPV4_DEVCONF_ACCEPT_LOCAL - 1) + if ((new_value == 0) && (old_value != 0)) + rt_cache_flush(net, 0); } return ret;
After reset ipv4_devconf->data[IPV4_DEVCONF_ACCEPT_LOCAL] to 0, we should flush route cache, or it will continue receive packets with local source address, which should be dropped. Signed-off-by: Weiping Pan <panweiping3@gmail.com> --- net/ipv4/devinet.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)