1 files changed, 140 insertions, 0 deletions
diff --git a/include/linux/connector.h b/include/linux/connector.h
new file mode 100644
index 00000000..f696bccd
--- /dev/null
+++ b/include/linux/connector.h
@@ -0,0 +1,140 @@
+/*
+ * 	connector.h
+ * 
+ * 2004-2005 Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
+ * All rights reserved.
+ * 
+ * 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 Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef __CONNECTOR_H
+#define __CONNECTOR_H
+
+#include <linux/types.h>
+
+/*
+ * Process Events connector unique ids -- used for message routing
+ */
+#define CN_IDX_PROC			0x1
+#define CN_VAL_PROC			0x1
+#define CN_IDX_CIFS			0x2
+#define CN_VAL_CIFS                     0x1
+#define CN_W1_IDX			0x3	/* w1 communication */
+#define CN_W1_VAL			0x1
+#define CN_IDX_V86D			0x4
+#define CN_VAL_V86D_UVESAFB		0x1
+#define CN_IDX_BB			0x5	/* BlackBoard, from the TSP GPL sampling framework */
+#define CN_DST_IDX			0x6
+#define CN_DST_VAL			0x1
+#define CN_IDX_DM			0x7	/* Device Mapper */
+#define CN_VAL_DM_USERSPACE_LOG		0x1
+#define CN_IDX_DRBD			0x8
+#define CN_VAL_DRBD			0x1
+#define CN_KVP_IDX			0x9	/* HyperV KVP */
+
+#define CN_NETLINK_USERS		10	/* Highest index + 1 */
+
+/*
+ * Maximum connector's message size.
+ */
+#define CONNECTOR_MAX_MSG_SIZE		16384
+
+/*
+ * idx and val are unique identifiers which 
+ * are used for message routing and 
+ * must be registered in connector.h for in-kernel usage.
+ */
+
+struct cb_id {
+	__u32 idx;
+	__u32 val;
+};
+
+struct cn_msg {
+	struct cb_id id;
+
+	__u32 seq;
+	__u32 ack;
+
+	__u16 len;		/* Length of the following data */
+	__u16 flags;
+	__u8 data[0];
+};
+
+#ifdef __KERNEL__
+
+#include <asm/atomic.h>
+
+#include <linux/list.h>
+#include <linux/workqueue.h>
+
+#include <net/sock.h>
+
+#define CN_CBQ_NAMELEN		32
+
+struct cn_queue_dev {
+	atomic_t refcnt;
+	unsigned char name[CN_CBQ_NAMELEN];
+
+	struct list_head queue_list;
+	spinlock_t queue_lock;
+
+	struct sock *nls;
+};
+
+struct cn_callback_id {
+	unsigned char name[CN_CBQ_NAMELEN];
+	struct cb_id id;
+};
+
+struct cn_callback_entry {
+	struct list_head callback_entry;
+	atomic_t refcnt;
+	struct cn_queue_dev *pdev;
+
+	struct cn_callback_id id;
+	void (*callback) (struct cn_msg *, struct netlink_skb_parms *);
+
+	u32 seq, group;
+};
+
+struct cn_dev {
+	struct cb_id id;
+
+	u32 seq, groups;
+	struct sock *nls;
+	void (*input) (struct sk_buff *skb);
+
+	struct cn_queue_dev *cbdev;
+};
+
+int cn_add_callback(struct cb_id *id, const char *name,
+		    void (*callback)(struct cn_msg *, struct netlink_skb_parms *));
+void cn_del_callback(struct cb_id *);
+int cn_netlink_send(struct cn_msg *, u32, gfp_t);
+
+int cn_queue_add_callback(struct cn_queue_dev *dev, const char *name,
+			  struct cb_id *id,
+			  void (*callback)(struct cn_msg *, struct netlink_skb_parms *));
+void cn_queue_del_callback(struct cn_queue_dev *dev, struct cb_id *id);
+void cn_queue_release_callback(struct cn_callback_entry *);
+
+struct cn_queue_dev *cn_queue_alloc_dev(const char *name, struct sock *);
+void cn_queue_free_dev(struct cn_queue_dev *dev);
+
+int cn_cb_equal(struct cb_id *, struct cb_id *);
+
+#endif				/* __KERNEL__ */
+#endif				/* __CONNECTOR_H */