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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 */
47struct 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
57void tipc_printbuf_init(struct print_buf *pb, char *buf, u32 size);
58int tipc_printbuf_validate(struct print_buf *pb);
59
60int tipc_log_resize(int log_size);
61
62struct sk_buff *tipc_log_resize_cmd(const void *req_tlv_area,
63 int req_tlv_space);
64struct sk_buff *tipc_log_dump(void);
65
66#endif