udevd: export current seqnum and add udevsettle

[elogind.git] / udevd.h

diff --git a/udevd.h b/udevd.h
index 4bccd4b81a75e14cd7c46a90c0e6ce18bc303925..e6ed58d622d1786b6bad858722240bc58f32e189 100644 (file)
--- a/udevd.h
+++ b/udevd.h
@@ -1,10 +1,8 @@
 /*
  * udevd.h
  *
- * Userspace devfs
- *
  * Copyright (C) 2004 Ling, Xiaofeng <xiaofeng.ling@intel.com>
- *
+ * Copyright (C) 2004-2005 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
@@ -23,21 +21,58 @@
 
 #include "list.h"
 
-#define FIRST_EVENT_TIMEOUT_SEC                1
-#define EVENT_TIMEOUT_SEC              5
-#define UDEVSEND_RETRY_COUNT           50 /* x 10 millisec */
+#define UDEV_MAGIC                     "udevd_" UDEV_VERSION
+#define UDEVD_SOCK_PATH                        "/org/kernel/udev/udevd"
+#define UDEVSEND_WAIT_MAX_SECONDS      3
+#define UDEVSEND_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"
+
+/* maximum limit of forked childs */
+#define UDEVD_MAX_CHILDS               64
+/* start to throttle forking if maximum number of running childs in our session is reached */
+#define UDEVD_MAX_CHILDS_RUNNING       16
 
-#define IPC_KEY_ID                     1
-#define HOTPLUGMSGTYPE                 44
+/* environment buffer, should match the kernel's size in lib/kobject_uevent.h */
+#define UEVENT_BUFFER_SIZE             2048
+#define UEVENT_NUM_ENVP                        64
 
+enum udevd_msg_type {
+       UDEVD_UNKNOWN,
+       UDEVD_UEVENT_UDEVSEND,
+       UDEVD_UEVENT_NETLINK,
+       UDEVD_STOP_EXEC_QUEUE,
+       UDEVD_START_EXEC_QUEUE,
+       UDEVD_SET_LOG_LEVEL,
+       UDEVD_SET_MAX_CHILDS,
+       UDEVD_RELOAD_RULES,
+};
+
+
+struct udevd_msg {
+       char magic[32];
+       enum udevd_msg_type type;
+       char envbuf[UEVENT_BUFFER_SIZE+512];
+};
 
-struct hotplug_msg {
-       long mtype;
-       struct list_head list;
+struct uevent_msg {
+       enum udevd_msg_type type;
+       struct list_head node;
        pid_t pid;
-       int seqnum;
+       int exitstatus;
        time_t queue_time;
-       char action[8];
-       char devpath[128];
-       char subsystem[16];
+       char *action;
+       char *devpath;
+       char *subsystem;
+       dev_t devt;
+       unsigned long long seqnum;
+       char *physdevpath;
+       unsigned int timeout;
+       char *envp[UEVENT_NUM_ENVP+1];
+       char envbuf[];
 };