/*
- * udevd.h
- *
- * Userspace devfs
- *
* Copyright (C) 2004 Ling, Xiaofeng <xiaofeng.ling@intel.com>
- * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
- *
+ * Copyright (C) 2004-2006 Kay Sievers <kay.sievers@vrfy.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "list.h"
-#define UDEV_MAGIC "udevd_" UDEV_VERSION
-#define EVENT_TIMEOUT_SEC 10
-#define UDEVD_SOCK_PATH "udevd"
-#define SEND_WAIT_MAX_SECONDS 3
-#define SEND_WAIT_LOOP_PER_SECOND 10
+#define UDEVD_PRIORITY -4
+#define UDEV_PRIORITY -2
+
+#define EVENT_QUEUE_DIR ".udev/queue"
+#define EVENT_FAILED_DIR ".udev/failed"
+#define EVENT_SEQNUM ".udev/uevent_seqnum"
-/* environment buffer, should match the kernel's size in lib/kobject_uevent.h */
-#define HOTPLUG_BUFFER_SIZE 1024
-#define HOTPLUG_NUM_ENVP 32
+/* maximum limit of forked childs */
+#define UDEVD_MAX_CHILDS 256
+/* start to throttle forking if maximum number of running childs in our session is reached */
+#define UDEVD_MAX_CHILDS_RUNNING 16
+
+/* linux/include/linux/kobject.h */
+#define UEVENT_BUFFER_SIZE 2048
+#define UEVENT_NUM_ENVP 32
+
+#define UDEVD_CTRL_SOCK_PATH "/org/kernel/udev/udevd"
+#define UDEVD_CTRL_MAGIC "udevd_" UDEV_VERSION
+
+enum udevd_ctrl_msg_type {
+ UDEVD_CTRL_UNKNOWN,
+ UDEVD_CTRL_STOP_EXEC_QUEUE,
+ UDEVD_CTRL_START_EXEC_QUEUE,
+ UDEVD_CTRL_SET_LOG_LEVEL,
+ UDEVD_CTRL_SET_MAX_CHILDS,
+ UDEVD_CTRL_SET_MAX_CHILDS_RUNNING,
+ UDEVD_CTRL_RELOAD_RULES,
+ UDEVD_CTRL_ENV,
+};
-struct udevsend_msg {
- char magic[20];
- char envbuf[HOTPLUG_BUFFER_SIZE+256];
+struct udevd_ctrl_msg {
+ char magic[32];
+ enum udevd_ctrl_msg_type type;
+ char buf[256];
};
-struct hotplug_msg {
- struct list_head list;
+struct udevd_uevent_msg {
+ struct list_head node;
pid_t pid;
- long queue_time;
+ int exitstatus;
+ time_t queue_time;
char *action;
char *devpath;
char *subsystem;
+ char *driver;
+ dev_t devt;
unsigned long long seqnum;
char *physdevpath;
- char *envp[HOTPLUG_NUM_ENVP+1];
+ unsigned int timeout;
+ char *envp[UEVENT_NUM_ENVP+1];
char envbuf[];
};