initial_commit

1 files changed, 312 insertions, 0 deletions

diff --git a/net/tipc/core.h b/net/tipc/core.h
new file mode 100644
index 00000000..436dda11
--- /dev/null
+++ b/net/tipc/core.h
@@ -0,0 +1,312 @@
+/*
+ * net/tipc/core.h: Include file for TIPC global declarations
+ *
+ * Copyright (c) 2005-2006, Ericsson AB
+ * Copyright (c) 2005-2007, 2010-2011, Wind River Systems
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _TIPC_CORE_H
+#define _TIPC_CORE_H
+
+#include <linux/tipc.h>
+#include <linux/tipc_config.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/timer.h>
+#include <linux/string.h>
+#include <asm/uaccess.h>
+#include <linux/interrupt.h>
+#include <asm/atomic.h>
+#include <asm/hardirq.h>
+#include <linux/netdevice.h>
+#include <linux/in.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+
+
+#define TIPC_MOD_VER "2.0.0"
+
+struct tipc_msg;	/* msg.h */
+struct print_buf;	/* log.h */
+
+/*
+ * TIPC sanity test macros
+ */
+
+#define assert(i)  BUG_ON(!(i))
+
+/*
+ * TIPC system monitoring code
+ */
+
+/*
+ * TIPC's print buffer subsystem supports the following print buffers:
+ *
+ * TIPC_NULL : null buffer (i.e. print nowhere)
+ * TIPC_CONS : system console
+ * TIPC_LOG  : TIPC log buffer
+ * &buf	     : user-defined buffer (struct print_buf *)
+ *
+ * Note: TIPC_LOG is configured to echo its output to the system console;
+ *       user-defined buffers can be configured to do the same thing.
+ */
+extern struct print_buf *const TIPC_NULL;
+extern struct print_buf *const TIPC_CONS;
+extern struct print_buf *const TIPC_LOG;
+
+void tipc_printf(struct print_buf *, const char *fmt, ...);
+
+/*
+ * TIPC_OUTPUT is the destination print buffer for system messages.
+ */
+
+#ifndef TIPC_OUTPUT
+#define TIPC_OUTPUT TIPC_LOG
+#endif
+
+#define err(fmt, arg...)  tipc_printf(TIPC_OUTPUT, \
+				      KERN_ERR "TIPC: " fmt, ## arg)
+#define warn(fmt, arg...) tipc_printf(TIPC_OUTPUT, \
+				      KERN_WARNING "TIPC: " fmt, ## arg)
+#define info(fmt, arg...) tipc_printf(TIPC_OUTPUT, \
+				      KERN_NOTICE "TIPC: " fmt, ## arg)
+
+#ifdef CONFIG_TIPC_DEBUG
+
+/*
+ * DBG_OUTPUT is the destination print buffer for debug messages.
+ */
+
+#ifndef DBG_OUTPUT
+#define DBG_OUTPUT TIPC_LOG
+#endif
+
+#define dbg(fmt, arg...)  tipc_printf(DBG_OUTPUT, KERN_DEBUG fmt, ## arg);
+
+#define msg_dbg(msg, txt) tipc_msg_dbg(DBG_OUTPUT, msg, txt);
+
+void tipc_msg_dbg(struct print_buf *, struct tipc_msg *, const char *);
+
+#else
+
+#define dbg(fmt, arg...)	do {} while (0)
+#define msg_dbg(msg, txt)	do {} while (0)
+
+#define tipc_msg_dbg(buf, msg, txt) do {} while (0)
+
+#endif
+
+
+/*
+ * TIPC-specific error codes
+ */
+
+#define ELINKCONG EAGAIN	/* link congestion <=> resource unavailable */
+
+/*
+ * TIPC operating mode routines
+ */
+#define TIPC_NOT_RUNNING  0
+#define TIPC_NODE_MODE    1
+#define TIPC_NET_MODE     2
+
+/*
+ * Global configuration variables
+ */
+
+extern u32 tipc_own_addr;
+extern int tipc_max_ports;
+extern int tipc_max_subscriptions;
+extern int tipc_max_publications;
+extern int tipc_net_id;
+extern int tipc_remote_management;
+
+/*
+ * Other global variables
+ */
+
+extern int tipc_mode;
+extern int tipc_random;
+extern const char tipc_alphabet[];
+
+
+/*
+ * Routines available to privileged subsystems
+ */
+
+extern int tipc_core_start_net(unsigned long);
+extern int  tipc_handler_start(void);
+extern void tipc_handler_stop(void);
+extern int  tipc_netlink_start(void);
+extern void tipc_netlink_stop(void);
+extern int  tipc_socket_init(void);
+extern void tipc_socket_stop(void);
+
+static inline int delimit(int val, int min, int max)
+{
+	if (val > max)
+		return max;
+	if (val < min)
+		return min;
+	return val;
+}
+
+
+/*
+ * TIPC timer and signal code
+ */
+
+typedef void (*Handler) (unsigned long);
+
+u32 tipc_k_signal(Handler routine, unsigned long argument);
+
+/**
+ * k_init_timer - initialize a timer
+ * @timer: pointer to timer structure
+ * @routine: pointer to routine to invoke when timer expires
+ * @argument: value to pass to routine when timer expires
+ *
+ * Timer must be initialized before use (and terminated when no longer needed).
+ */
+
+static inline void k_init_timer(struct timer_list *timer, Handler routine,
+				unsigned long argument)
+{
+	setup_timer(timer, routine, argument);
+}
+
+/**
+ * k_start_timer - start a timer
+ * @timer: pointer to timer structure
+ * @msec: time to delay (in ms)
+ *
+ * Schedules a previously initialized timer for later execution.
+ * If timer is already running, the new timeout overrides the previous request.
+ *
+ * To ensure the timer doesn't expire before the specified delay elapses,
+ * the amount of delay is rounded up when converting to the jiffies
+ * then an additional jiffy is added to account for the fact that
+ * the starting time may be in the middle of the current jiffy.
+ */
+
+static inline void k_start_timer(struct timer_list *timer, unsigned long msec)
+{
+	mod_timer(timer, jiffies + msecs_to_jiffies(msec) + 1);
+}
+
+/**
+ * k_cancel_timer - cancel a timer
+ * @timer: pointer to timer structure
+ *
+ * Cancels a previously initialized timer.
+ * Can be called safely even if the timer is already inactive.
+ *
+ * WARNING: Must not be called when holding locks required by the timer's
+ *          timeout routine, otherwise deadlock can occur on SMP systems!
+ */
+
+static inline void k_cancel_timer(struct timer_list *timer)
+{
+	del_timer_sync(timer);
+}
+
+/**
+ * k_term_timer - terminate a timer
+ * @timer: pointer to timer structure
+ *
+ * Prevents further use of a previously initialized timer.
+ *
+ * WARNING: Caller must ensure timer isn't currently running.
+ *
+ * (Do not "enhance" this routine to automatically cancel an active timer,
+ * otherwise deadlock can arise when a timeout routine calls k_term_timer.)
+ */
+
+static inline void k_term_timer(struct timer_list *timer)
+{
+}
+
+
+/*
+ * TIPC message buffer code
+ *
+ * TIPC message buffer headroom reserves space for the worst-case
+ * link-level device header (in case the message is sent off-node).
+ *
+ * Note: Headroom should be a multiple of 4 to ensure the TIPC header fields
+ *       are word aligned for quicker access
+ */
+
+#define BUF_HEADROOM LL_MAX_HEADER
+
+struct tipc_skb_cb {
+	void *handle;
+};
+
+#define TIPC_SKB_CB(__skb) ((struct tipc_skb_cb *)&((__skb)->cb[0]))
+
+
+static inline struct tipc_msg *buf_msg(struct sk_buff *skb)
+{
+	return (struct tipc_msg *)skb->data;
+}
+
+extern struct sk_buff *tipc_buf_acquire(u32 size);
+
+/**
+ * buf_discard - frees a TIPC message buffer
+ * @skb: message buffer
+ *
+ * Frees a message buffer.  If passed NULL, just returns.
+ */
+
+static inline void buf_discard(struct sk_buff *skb)
+{
+	kfree_skb(skb);
+}
+
+/**
+ * buf_linearize - convert a TIPC message buffer into a single contiguous piece
+ * @skb: message buffer
+ *
+ * Returns 0 on success.
+ */
+
+static inline int buf_linearize(struct sk_buff *skb)
+{
+	return skb_linearize(skb);
+}
+
+#endif