* Userspace devfs
*
* Copyright (C) 2004 Ling, Xiaofeng <xiaofeng.ling@intel.com>
+ * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
*
* This program is free software; you can redistribute it and/or modify it
#include "list.h"
-#define UDEV_EXEC "./udev"
-#define UDEVD_EXEC "./udevd"
-#define UDEVD_TIMEOUT_SECONDS 60
-#define EVENT_TIMEOUT_SECONDS 5
+#define UDEV_MAGIC "udevd_" UDEV_VERSION
+#define UDEVD_SOCK_PATH "udevd"
+#define SEND_WAIT_MAX_SECONDS 3
+#define SEND_WAIT_LOOP_PER_SECOND 10
-#define IPC_KEY_ID 0
-#define HOTPLUGMSGTYPE 44
+#define UDEVD_PRIORITY -4
+#define UDEV_PRIORITY -2
+/* duration of initialization phase with shorter timeout */
+#define INIT_TIME_SEC 5
+#define EVENT_INIT_TIMEOUT_SEC 2
+
+/* timeout to wait for missing events */
+#define EVENT_TIMEOUT_SEC 10
+
+/* start to throttle forking if maximum number of running childs in our session is reached */
+#define THROTTLE_MAX_RUNNING_CHILDS 10
+
+/* environment buffer, should match the kernel's size in lib/kobject_uevent.h */
+#define HOTPLUG_BUFFER_SIZE 1024
+#define HOTPLUG_NUM_ENVP 32
+
+struct udevsend_msg {
+ char magic[20];
+ char envbuf[HOTPLUG_BUFFER_SIZE+256];
+};
struct hotplug_msg {
- long mtype;
struct list_head list;
- int seqnum;
- time_t queue_time;
- char action[8];
- char devpath[128];
- char subsystem[16];
+ pid_t pid;
+ long queue_time;
+ char *action;
+ char *devpath;
+ char *subsystem;
+ unsigned long long seqnum;
+ char *physdevpath;
+ char *envp[HOTPLUG_NUM_ENVP+1];
+ char envbuf[];
};