korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-13 23:34:05 +08:00
Code Issues Packages Projects Releases Wiki Activity

netpoll: fix netconsole IPv6 setup

Browse Source 
Currently, to make netconsole start over IPv6, the source address
needs to be specified. Without a source address, netpoll_parse_options
assumes we're setting up over IPv4 and the destination IPv6 address is
rejected.

Check if the IP version has been forced by a source address before
checking for a version mismatch when parsing the destination address.

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sabrina Dubroca 2014-02-06 18:34:12 +01:00 committed by David S. Miller
parent 440b87eac4
commit 00fe11b3c6
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/core/netpoll.c
View File

@ -948,6 +948,7 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
{
char *cur=opt, *delim;
int ipv6;
bool ipversion_set = false;
if (*cur != '@') {
if ((delim = strchr(cur, '@')) == NULL)
@ -960,6 +961,7 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
cur++;
if (*cur != '/') {
ipversion_set = true;
if ((delim = strchr(cur, '/')) == NULL)
goto parse_failed;
*delim = 0;
@ -1002,7 +1004,7 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
ipv6 = netpoll_parse_ip_addr(cur, &np->remote_ip);
if (ipv6 < 0)
goto parse_failed;
else if (np->ipv6 != (bool)ipv6)
else if (ipversion_set && np->ipv6 != (bool)ipv6)
goto parse_failed;
else
np->ipv6 = (bool)ipv6;