allow rules to be compiled to one binary file

[elogind.git] / udevd.h

diff --git a/udevd.h b/udevd.h
index c9b69bbc3cb6a0e4282556af8a8a1e6c4c18a629..34bfe931bada23cacf393a89a29d229ba08666ac 100644 (file)
--- a/udevd.h
+++ b/udevd.h
@@ -4,6 +4,7 @@
  * 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
@@ -23,21 +24,59 @@
 
 #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 UDEVSEND_WAIT_MAX_SECONDS      3
+#define UDEVSEND_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 UDEVD_INIT_TIME                        5
+#define UDEVD_INIT_EVENT_TIMEOUT       2
 
-struct hotplug_msg {
-       long mtype;
-       struct list_head list;
-       int seqnum;
-       time_t queue_time;
-       char action[8];
-       char devpath[128];
-       char subsystem[16];
+/* timeout to wait for missing events */
+#define UDEVD_EVENT_TIMEOUT            5
+
+/* maximum limit of runnig 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       8
+
+/* environment buffer, should match the kernel's size in lib/kobject_uevent.h */
+#define UEVENT_BUFFER_SIZE             1024
+#define UEVENT_NUM_ENVP                        32
+
+enum udevd_msg_type {
+       UDEVD_UNKNOWN,
+       UDEVD_UEVENT_UDEVSEND,
+       UDEVD_UEVENT_INITSEND,
+       UDEVD_UEVENT_NETLINK,
+       UDEVD_STOP_EXEC_QUEUE,
+       UDEVD_START_EXEC_QUEUE,
+       UDEVD_SET_LOG_LEVEL,
+       UDEVD_SET_MAX_CHILDS,
+};
+
+
+struct udevd_msg {
+       char magic[32];
+       enum udevd_msg_type type;
+       char envbuf[UEVENT_BUFFER_SIZE+512];
+};
+
+struct uevent_msg {
+       enum udevd_msg_type type;
+       struct list_head node;
+       pid_t pid;
+       long queue_time;
+       char *action;
+       char *devpath;
+       char *subsystem;
+       unsigned long long seqnum;
+       char *physdevpath;
+       unsigned int timeout;
+       char *envp[UEVENT_NUM_ENVP+1];
+       char envbuf[];
 };