1/*
2 * Copyright (c) 2000, 2001 Boris Popov
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Boris Popov.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * FreeBSD: src/sys/sys/mchain.h,v 1.1 2001/02/24 15:44:30 bp Exp
33 */
34#ifndef _NETSMB_MCHAIN_H_
35#define _NETSMB_MCHAIN_H_
36
37#ifndef _KERNEL
38#error not supposed to be exposed to userland.
39#endif /* !_KERNEL */
40
41#ifdef _KERNEL
42
43#include <machine/endian.h>
44
45/*
46 * Type of copy for mb_{put|get}_mem()
47 */
48#define MB_MSYSTEM 0 /* use bcopy() */
49#define MB_MUSER 1 /* use copyin()/copyout() */
50#define MB_MINLINE 2 /* use an inline copy loop */
51#define MB_MZERO 3 /* memset(), 0, mb_put_mem only */
52#define MB_MCUSTOM 4 /* use an user defined function */
53
54struct mbuf;
55struct mbchain;
56
57typedef int mb_copy_t(struct mbchain *, const char *, char *,
58 size_t *, size_t *);
59
60struct mbchain {
61 struct mbuf * mb_top; /* head of mbufs chain */
62 struct mbuf * mb_cur; /* current mbuf */
63 size_t mb_mleft; /* free space in the current mbuf */
64 size_t mb_count; /* total number of bytes */
65 mb_copy_t * mb_copy; /* user defined copy function */
66 void * mb_udata; /* user data */
67};
68
69struct mdchain {
70 struct mbuf * md_top; /* head of mbufs chain */
71 struct mbuf * md_cur; /* current mbuf */
72 u_char * md_pos; /* offset in the current mbuf */
73};
74
75int m_fixhdr(struct mbuf *m);
76
77int mb_init(struct mbchain *mbp);
78void mb_initm(struct mbchain *mbp, struct mbuf *m);
79void mb_done(struct mbchain *mbp);
80struct mbuf *mb_detach(struct mbchain *mbp);
81int mb_fixhdr(struct mbchain *mbp);
82void *mb_reserve(struct mbchain *mbp, size_t size);
83
84int mb_put_uint8(struct mbchain *mbp, u_int8_t x);
85int mb_put_uint16be(struct mbchain *mbp, u_int16_t x);
86int mb_put_uint16le(struct mbchain *mbp, u_int16_t x);
87int mb_put_uint32be(struct mbchain *mbp, u_int32_t x);
88int mb_put_uint32le(struct mbchain *mbp, u_int32_t x);
89int mb_put_int64be(struct mbchain *mbp, int64_t x);
90int mb_put_int64le(struct mbchain *mbp, int64_t x);
91int mb_put_mem(struct mbchain *mbp, const char * source, size_t size, int type);
92int mb_put_mbuf(struct mbchain *mbp, struct mbuf *m);
93int mb_put_uio(struct mbchain *mbp, struct uio *uiop, size_t size);
94
95int md_init(struct mdchain *mdp);
96void md_initm(struct mdchain *mbp, struct mbuf *m);
97void md_done(struct mdchain *mdp);
98void md_append_record(struct mdchain *mdp, struct mbuf *top);
99int md_next_record(struct mdchain *mdp);
100int md_get_uint8(struct mdchain *mdp, u_int8_t *x);
101int md_get_uint16(struct mdchain *mdp, u_int16_t *x);
102int md_get_uint16le(struct mdchain *mdp, u_int16_t *x);
103int md_get_uint16be(struct mdchain *mdp, u_int16_t *x);
104int md_get_uint32(struct mdchain *mdp, u_int32_t *x);
105int md_get_uint32be(struct mdchain *mdp, u_int32_t *x);
106int md_get_uint32le(struct mdchain *mdp, u_int32_t *x);
107int md_get_int64(struct mdchain *mdp, int64_t *x);
108int md_get_int64be(struct mdchain *mdp, int64_t *x);
109int md_get_int64le(struct mdchain *mdp, int64_t *x);
110int md_get_mem(struct mdchain *mdp, void *target, size_t size, int type);
111int md_get_mbuf(struct mdchain *mdp, int size, struct mbuf **m);
112int md_get_uio(struct mdchain *mdp, struct uio *uiop, size_t size);
113
114#endif /* ifdef _KERNEL */
115
116#endif /* !_NETSMB_MCHAIN_H_ */
117