X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=udevd.h;h=60732fe052d774b796e35926f29fbc757ca04451;hb=0fa98832b5be9893e1b26252c20b68d730b77173;hp=eb516ab65ddeda70c6b06221818f1da4bb1a31aa;hpb=7fafc0324272731c5666047715b9f58f56761534;p=elogind.git

diff --git a/udevd.h b/udevd.h
index eb516ab65..60732fe05 100644
--- 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
@@ -21,16 +22,56 @@
  *
  */
 
-#define HOTPLUGMSGTYPE		44
-#define DEFAULT_EXEC_PROGRAM	"/sbin/udev"
-#define IPC_KEY_ID		0
+#include "list.h"
 
+#define UDEV_MAGIC			"udevd_" UDEV_VERSION
+#define UDEVD_SOCK_PATH			"udevd"
+#define UDEVSEND_WAIT_MAX_SECONDS	3
+#define UDEVSEND_WAIT_LOOP_PER_SECOND	10
 
-struct hotplug_msg {
-	long mtype;
-	struct hotplug_msg *next;
-	int seqnum;
-	char action[8];
-	char devpath[128];
-	char subsystem[16];
+#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
+
+/* 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,
+	UDEVD_STOP_EXEC_QUEUE,
+	UDEVD_START_EXEC_QUEUE,
+};
+
+
+struct udevd_msg {
+	char magic[32];
+	enum udevd_msg_type type;
+	char envbuf[UEVENT_BUFFER_SIZE+512];
+};
+
+struct uevent_msg {
+	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[];
 };