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authorCong Wang <amwang@redhat.com>2013-01-07 20:52:41 +0000
committerDavid S. Miller <davem@davemloft.net>2013-01-08 17:56:10 -0800
commitb3d936f3ea1c97c32680e0cd235474cf9dadb762 (patch)
tree55231f53fa50114417709a1cc2623f124bcba1f0 /drivers/net/netconsole.c
parentacb3e04119fbf9145eb6d6bb707f6fb662ab4d3b (diff)
downloadlinux-b3d936f3ea1c97c32680e0cd235474cf9dadb762.tar.bz2
netpoll: add IPv6 support
Currently, netpoll only supports IPv4. This patch adds IPv6 support to netpoll so that we can run netconsole over IPv6 network. Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/netconsole.c')
-rw-r--r--drivers/net/netconsole.c44
1 files changed, 38 insertions, 6 deletions
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 998fa0257a92..37add21a3d7d 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -269,13 +269,17 @@ static ssize_t show_remote_port(struct netconsole_target *nt, char *buf)
static ssize_t show_local_ip(struct netconsole_target *nt, char *buf)
{
- if (!nt->np.ipv6)
+ if (nt->np.ipv6)
+ return snprintf(buf, PAGE_SIZE, "%pI6c\n", &nt->np.local_ip.in6);
+ else
return snprintf(buf, PAGE_SIZE, "%pI4\n", &nt->np.local_ip);
}
static ssize_t show_remote_ip(struct netconsole_target *nt, char *buf)
{
- if (!nt->np.ipv6)
+ if (nt->np.ipv6)
+ return snprintf(buf, PAGE_SIZE, "%pI6c\n", &nt->np.remote_ip.in6);
+ else
return snprintf(buf, PAGE_SIZE, "%pI4\n", &nt->np.remote_ip);
}
@@ -412,8 +416,22 @@ static ssize_t store_local_ip(struct netconsole_target *nt,
return -EINVAL;
}
- if (!strnchr(buf, count, ':'))
- nt->np.local_ip.ip = in_aton(buf);
+ if (strnchr(buf, count, ':')) {
+ const char *end;
+ if (in6_pton(buf, count, nt->np.local_ip.in6.s6_addr, -1, &end) > 0) {
+ if (*end && *end != '\n') {
+ printk(KERN_ERR "netconsole: invalid IPv6 address at: <%c>\n", *end);
+ return -EINVAL;
+ }
+ nt->np.ipv6 = true;
+ } else
+ return -EINVAL;
+ } else {
+ if (!nt->np.ipv6) {
+ nt->np.local_ip.ip = in_aton(buf);
+ } else
+ return -EINVAL;
+ }
return strnlen(buf, count);
}
@@ -429,8 +447,22 @@ static ssize_t store_remote_ip(struct netconsole_target *nt,
return -EINVAL;
}
- if (!strnchr(buf, count, ':'))
- nt->np.remote_ip.ip = in_aton(buf);
+ if (strnchr(buf, count, ':')) {
+ const char *end;
+ if (in6_pton(buf, count, nt->np.remote_ip.in6.s6_addr, -1, &end) > 0) {
+ if (*end && *end != '\n') {
+ printk(KERN_ERR "netconsole: invalid IPv6 address at: <%c>\n", *end);
+ return -EINVAL;
+ }
+ nt->np.ipv6 = true;
+ } else
+ return -EINVAL;
+ } else {
+ if (!nt->np.ipv6) {
+ nt->np.remote_ip.ip = in_aton(buf);
+ } else
+ return -EINVAL;
+ }
return strnlen(buf, count);
}