| 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 | |
| 54 | struct mbuf; |
| 55 | struct mbchain; |
| 56 | |
| 57 | typedef int mb_copy_t(struct mbchain *, const char *, char *, |
| 58 | size_t *, size_t *); |
| 59 | |
| 60 | struct 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 | |
| 69 | struct 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 | |
| 75 | int m_fixhdr(struct mbuf *m); |
| 76 | |
| 77 | int mb_init(struct mbchain *mbp); |
| 78 | void mb_initm(struct mbchain *mbp, struct mbuf *m); |
| 79 | void mb_done(struct mbchain *mbp); |
| 80 | struct mbuf *mb_detach(struct mbchain *mbp); |
| 81 | int mb_fixhdr(struct mbchain *mbp); |
| 82 | void *mb_reserve(struct mbchain *mbp, size_t size); |
| 83 | |
| 84 | int mb_put_uint8(struct mbchain *mbp, u_int8_t x); |
| 85 | int mb_put_uint16be(struct mbchain *mbp, u_int16_t x); |
| 86 | int mb_put_uint16le(struct mbchain *mbp, u_int16_t x); |
| 87 | int mb_put_uint32be(struct mbchain *mbp, u_int32_t x); |
| 88 | int mb_put_uint32le(struct mbchain *mbp, u_int32_t x); |
| 89 | int mb_put_int64be(struct mbchain *mbp, int64_t x); |
| 90 | int mb_put_int64le(struct mbchain *mbp, int64_t x); |
| 91 | int mb_put_mem(struct mbchain *mbp, const char * source, size_t size, int type); |
| 92 | int mb_put_mbuf(struct mbchain *mbp, struct mbuf *m); |
| 93 | int mb_put_uio(struct mbchain *mbp, struct uio *uiop, size_t size); |
| 94 | |
| 95 | int md_init(struct mdchain *mdp); |
| 96 | void md_initm(struct mdchain *mbp, struct mbuf *m); |
| 97 | void md_done(struct mdchain *mdp); |
| 98 | void md_append_record(struct mdchain *mdp, struct mbuf *top); |
| 99 | int md_next_record(struct mdchain *mdp); |
| 100 | int md_get_uint8(struct mdchain *mdp, u_int8_t *x); |
| 101 | int md_get_uint16(struct mdchain *mdp, u_int16_t *x); |
| 102 | int md_get_uint16le(struct mdchain *mdp, u_int16_t *x); |
| 103 | int md_get_uint16be(struct mdchain *mdp, u_int16_t *x); |
| 104 | int md_get_uint32(struct mdchain *mdp, u_int32_t *x); |
| 105 | int md_get_uint32be(struct mdchain *mdp, u_int32_t *x); |
| 106 | int md_get_uint32le(struct mdchain *mdp, u_int32_t *x); |
| 107 | int md_get_int64(struct mdchain *mdp, int64_t *x); |
| 108 | int md_get_int64be(struct mdchain *mdp, int64_t *x); |
| 109 | int md_get_int64le(struct mdchain *mdp, int64_t *x); |
| 110 | int md_get_mem(struct mdchain *mdp, void *target, size_t size, int type); |
| 111 | int md_get_mbuf(struct mdchain *mdp, int size, struct mbuf **m); |
| 112 | int md_get_uio(struct mdchain *mdp, struct uio *uiop, size_t size); |
| 113 | |
| 114 | #endif /* ifdef _KERNEL */ |
| 115 | |
| 116 | #endif /* !_NETSMB_MCHAIN_H_ */ |
| 117 | |