#include <linux/kobject.h>
#include <net/sock.h>
-#define BUFFER_SIZE 1024 /* buffer for the hotplug env */
+#define BUFFER_SIZE 2048 /* buffer for the variables */
#define NUM_ENVP 32 /* number of env pointers */
-#if defined(CONFIG_HOTPLUG)
-char hotplug_path[HOTPLUG_PATH_LEN] = "/sbin/hotplug";
-u64 hotplug_seqnum;
+#if defined(CONFIG_HOTPLUG) && defined(CONFIG_NET)
+u64 uevent_seqnum;
+char uevent_helper[UEVENT_HELPER_PATH_LEN] = "/sbin/hotplug";
static DEFINE_SPINLOCK(sequence_lock);
static struct sock *uevent_sock;
return "remove";
case KOBJ_CHANGE:
return "change";
+ case KOBJ_MOUNT:
+ return "mount";
+ case KOBJ_UMOUNT:
+ return "umount";
case KOBJ_OFFLINE:
return "offline";
case KOBJ_ONLINE:
}
/**
- * kobject_hotplug - notify userspace by executing /sbin/hotplug
+ * kobject_uevent - notify userspace by ending an uevent
*
- * @action: action that is happening (usually "ADD" or "REMOVE")
+ * @action: action that is happening (usually KOBJ_ADD and KOBJ_REMOVE)
* @kobj: struct kobject that the action is happening to
*/
-void kobject_hotplug(struct kobject *kobj, enum kobject_action action)
+void kobject_uevent(struct kobject *kobj, enum kobject_action action)
{
char **envp;
char *buffer;
const char *subsystem;
struct kobject *top_kobj;
struct kset *kset;
- struct kset_hotplug_ops *hotplug_ops;
+ struct kset_uevent_ops *uevent_ops;
u64 seq;
char *seq_buff;
int i = 0;
return;
kset = top_kobj->kset;
- hotplug_ops = kset->hotplug_ops;
+ uevent_ops = kset->uevent_ops;
/* skip the event, if the filter returns zero. */
- if (hotplug_ops && hotplug_ops->filter)
- if (!hotplug_ops->filter(kset, kobj))
+ if (uevent_ops && uevent_ops->filter)
+ if (!uevent_ops->filter(kset, kobj))
return;
/* environment index */
goto exit;
/* originating subsystem */
- if (hotplug_ops && hotplug_ops->name)
- subsystem = hotplug_ops->name(kset, kobj);
+ if (uevent_ops && uevent_ops->name)
+ subsystem = uevent_ops->name(kset, kobj);
else
subsystem = kobject_name(&kset->kobj);
scratch += strlen("SEQNUM=18446744073709551616") + 1;
/* let the kset specific function add its stuff */
- if (hotplug_ops && hotplug_ops->hotplug) {
- retval = hotplug_ops->hotplug (kset, kobj,
+ if (uevent_ops && uevent_ops->uevent) {
+ retval = uevent_ops->uevent(kset, kobj,
&envp[i], NUM_ENVP - i, scratch,
BUFFER_SIZE - (scratch - buffer));
if (retval) {
- pr_debug ("%s - hotplug() returned %d\n",
+ pr_debug ("%s - uevent() returned %d\n",
__FUNCTION__, retval);
goto exit;
}
/* we will send an event, request a new sequence number */
spin_lock(&sequence_lock);
- seq = ++hotplug_seqnum;
+ seq = ++uevent_seqnum;
spin_unlock(&sequence_lock);
sprintf(seq_buff, "SEQNUM=%llu", (unsigned long long)seq);
}
/* call uevent_helper, usually only enabled during early boot */
- if (hotplug_path[0]) {
+ if (uevent_helper[0]) {
char *argv [3];
- argv [0] = hotplug_path;
+ argv [0] = uevent_helper;
argv [1] = (char *)subsystem;
argv [2] = NULL;
call_usermodehelper (argv[0], argv, envp, 0);
kfree(envp);
return;
}
-EXPORT_SYMBOL(kobject_hotplug);
+EXPORT_SYMBOL_GPL(kobject_uevent);
/**
- * add_hotplug_env_var - helper for creating hotplug environment variables
+ * add_uevent_var - helper for creating event variables
* @envp: Pointer to table of environment variables, as passed into
- * hotplug() method.
+ * uevent() method.
* @num_envp: Number of environment variable slots available, as
- * passed into hotplug() method.
+ * passed into uevent() method.
* @cur_index: Pointer to current index into @envp. It should be
- * initialized to 0 before the first call to add_hotplug_env_var(),
+ * initialized to 0 before the first call to add_uevent_var(),
* and will be incremented on success.
* @buffer: Pointer to buffer for environment variables, as passed
- * into hotplug() method.
- * @buffer_size: Length of @buffer, as passed into hotplug() method.
+ * into uevent() method.
+ * @buffer_size: Length of @buffer, as passed into uevent() method.
* @cur_len: Pointer to current length of space used in @buffer.
* Should be initialized to 0 before the first call to
- * add_hotplug_env_var(), and will be incremented on success.
+ * add_uevent_var(), and will be incremented on success.
* @format: Format for creating environment variable (of the form
* "XXX=%x") for snprintf().
*
* Returns 0 if environment variable was added successfully or -ENOMEM
* if no space was available.
*/
-int add_hotplug_env_var(char **envp, int num_envp, int *cur_index,
- char *buffer, int buffer_size, int *cur_len,
- const char *format, ...)
+int add_uevent_var(char **envp, int num_envp, int *cur_index,
+ char *buffer, int buffer_size, int *cur_len,
+ const char *format, ...)
{
va_list args;
/*
* We check against num_envp - 1 to make sure there is at
- * least one slot left after we return, since the hotplug
- * method needs to set the last slot to NULL.
+ * least one slot left after we return, since kobject_uevent()
+ * needs to set the last slot to NULL.
*/
if (*cur_index >= num_envp - 1)
return -ENOMEM;
(*cur_index)++;
return 0;
}
-EXPORT_SYMBOL(add_hotplug_env_var);
+EXPORT_SYMBOL_GPL(add_uevent_var);
static int __init kobject_uevent_init(void)
{
git.openpandora.org / pandora-kernel.git / blobdiff