net/tipc/log.h

   1 /*
   2  * net/tipc/log.h: Include file for TIPC print buffer routines
   3  *
   4  * Copyright (c) 1997-2006, Ericsson AB
   5  * Copyright (c) 2005-2007, Wind River Systems
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the names of the copyright holders nor the names of its
  17  *    contributors may be used to endorse or promote products derived from
  18  *    this software without specific prior written permission.
  19  *
  20  * Alternatively, this software may be distributed under the terms of the
  21  * GNU General Public License ("GPL") version 2 as published by the Free
  22  * Software Foundation.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  34  * POSSIBILITY OF SUCH DAMAGE.
  35  */
  36
  37 #ifndef _TIPC_LOG_H
  38 #define _TIPC_LOG_H
  39
  40 /**
  41  * struct print_buf - TIPC print buffer structure
  42  * @buf: pointer to character array containing print buffer contents
  43  * @size: size of character array
  44  * @crs: pointer to first unused space in character array (i.e. final NUL)
  45  * @echo: echo output to system console if non-zero
  46  */
  47 struct print_buf {
  48         char *buf;
  49         u32 size;
  50         char *crs;
  51         int echo;
  52 };
  53
  54 #define TIPC_PB_MIN_SIZE 64     /* minimum size for a print buffer's array */
  55 #define TIPC_PB_MAX_STR 512     /* max printable string (with trailing NUL) */
  56
  57 void tipc_printbuf_init(struct print_buf *pb, char *buf, u32 size);
  58 int  tipc_printbuf_validate(struct print_buf *pb);
  59
  60 int tipc_log_resize(int log_size);
  61
  62 struct sk_buff *tipc_log_resize_cmd(const void *req_tlv_area,
  63                                     int req_tlv_space);
  64 struct sk_buff *tipc_log_dump(void);
  65
  66 #endif