The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netsmb/mchain.h

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    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               /* bzero(), 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 *, size_t);
   58 
   59 struct mbchain {
   60         struct mbuf *   mb_top;         /* head of mbufs chain */
   61         struct mbuf *   mb_cur;         /* current mbuf */
   62         size_t          mb_mleft;       /* free space in the current mbuf */
   63         size_t          mb_count;       /* total number of bytes */
   64         mb_copy_t *     mb_copy;        /* user defined copy function */
   65         void *          mb_udata;       /* user data */
   66 };
   67 
   68 struct mdchain {
   69         struct mbuf *   md_top;         /* head of mbufs chain */
   70         struct mbuf *   md_cur;         /* current mbuf */
   71         u_char *        md_pos;         /* offset in the current mbuf */
   72 };
   73 
   74 int  m_fixhdr(struct mbuf *m);
   75 
   76 int  mb_init(struct mbchain *mbp);
   77 void mb_initm(struct mbchain *mbp, struct mbuf *m);
   78 void mb_done(struct mbchain *mbp);
   79 struct mbuf *mb_detach(struct mbchain *mbp);
   80 int  mb_fixhdr(struct mbchain *mbp);
   81 caddr_t mb_reserve(struct mbchain *mbp, size_t size);
   82 
   83 int  mb_put_uint8(struct mbchain *mbp, u_int8_t x);
   84 int  mb_put_uint16be(struct mbchain *mbp, u_int16_t x);
   85 int  mb_put_uint16le(struct mbchain *mbp, u_int16_t x);
   86 int  mb_put_uint32be(struct mbchain *mbp, u_int32_t x);
   87 int  mb_put_uint32le(struct mbchain *mbp, u_int32_t x);
   88 int  mb_put_int64be(struct mbchain *mbp, int64_t x);
   89 int  mb_put_int64le(struct mbchain *mbp, int64_t x);
   90 int  mb_put_mem(struct mbchain *mbp, const char * source, size_t size, int type);
   91 int  mb_put_mbuf(struct mbchain *mbp, struct mbuf *m);
   92 int  mb_put_uio(struct mbchain *mbp, struct uio *uiop, size_t size);
   93 
   94 int  md_init(struct mdchain *mdp);
   95 void md_initm(struct mdchain *mbp, struct mbuf *m);
   96 void md_done(struct mdchain *mdp);
   97 void md_append_record(struct mdchain *mdp, struct mbuf *top);
   98 int  md_next_record(struct mdchain *mdp);
   99 int  md_get_uint8(struct mdchain *mdp, u_int8_t *x);
  100 int  md_get_uint16(struct mdchain *mdp, u_int16_t *x);
  101 int  md_get_uint16le(struct mdchain *mdp, u_int16_t *x);
  102 int  md_get_uint16be(struct mdchain *mdp, u_int16_t *x);
  103 int  md_get_uint32(struct mdchain *mdp, u_int32_t *x);
  104 int  md_get_uint32be(struct mdchain *mdp, u_int32_t *x);
  105 int  md_get_uint32le(struct mdchain *mdp, u_int32_t *x);
  106 int  md_get_int64(struct mdchain *mdp, int64_t *x);
  107 int  md_get_int64be(struct mdchain *mdp, int64_t *x);
  108 int  md_get_int64le(struct mdchain *mdp, int64_t *x);
  109 int  md_get_mem(struct mdchain *mdp, caddr_t target, size_t size, int type);
  110 int  md_get_mbuf(struct mdchain *mdp, int size, struct mbuf **m);
  111 int  md_get_uio(struct mdchain *mdp, struct uio *uiop, size_t size);
  112 
  113 #endif  /* ifdef _KERNEL */
  114 
  115 #endif  /* !_NETSMB_MCHAIN_H_ */

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