From: Keiichi KII <[email protected]>
This patch contains the following changes.
To add port dynamically, create "add" element in /sys/class/misc/netconsole.
ex)
echo "@/eth0,@192.168.0.1/" > /sys/class/misc/netconsole/add
then the port is added with the settings sending kernel messages
to 192.168.0.1 using eth0 device.
-+- /sys/class/misc/
|-+- netconsole/
|--- add [-w-------] If you write parameter(network interface name
| or one config parameter of netconsole), The
| port related its config is added
|--- port1/
|--- port2/
...
Signed-off-by: Keiichi KII <[email protected]>
---
[changes]
1. remove unneccesary cast.
2. change config parameter for "add" element.
--- linux-2.6.19/drivers/net/netconsole.c 2006-12-21 18:39:12.719185750 +0900
+++ enhanced-netconsole/drivers/net/netconsole.c.add 2006-12-21 18:39:05.046706250 +0900
@@ -338,6 +338,30 @@ static struct miscdevice netconsole_misc
.name = "netconsole",
};
+static ssize_t store_miscdev_add(struct class_device *cdev,
+ const char *buf, size_t count)
+{
+ char *target_param;
+
+ target_param = kmalloc(count+1, GFP_KERNEL);
+ if (!target_param) {
+ printk(KERN_ERR "netconsole: kmalloc() failed!\n");
+ return -ENOMEM;
+ }
+
+ strcpy(target_param, buf);
+ if (target_param[count - 1] == '\n')
+ target_param[count - 1] = '\0';
+
+ printk(KERN_INFO "netconsole: config = [%s]\n", target_param);
+ add_target(target_param);
+ kfree(target_param);
+
+ return count;
+}
+
+static CLASS_DEVICE_ATTR(add, S_IWUSR, NULL, store_miscdev_add);
+
static struct netpoll np = {
.name = "netconsole",
.dev_name = "eth0",
@@ -467,6 +491,9 @@ static int __init init_netconsole(void)
register_console(&netconsole);
+ class_device_create_file(netconsole_miscdev.class,
+ &class_device_attr_add);
+
if(!strlen(config)) {
printk(KERN_ERR "netconsole: not configured\n");
return 0;
--
Keiichi KII
NEC Corporation OSS Promotion Center
E-mail: [email protected]
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