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/netncp/ncp_rq.h

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    1 /*-
    2  * Copyright (c) 1999, 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  * $FreeBSD$
   33  */
   34 #ifndef _NETNCP_NCP_RQ_H_
   35 #define _NETNCP_NCP_RQ_H_
   36 
   37 #include <sys/endian.h>
   38 
   39 #define getb(buf,ofs)           (((const u_int8_t *)(buf))[ofs])
   40 #define setb(buf,ofs,val)       (((u_int8_t*)(buf))[ofs])=val
   41 #define getbw(buf,ofs)          ((u_int16_t)(getb(buf,ofs)))
   42 
   43 #define getwle(buf,ofs) (le16toh(*((u_int16_t*)(&((u_int8_t*)(buf))[ofs]))))
   44 #define getdle(buf,ofs) (le32toh(*((u_int32_t*)(&((u_int8_t*)(buf))[ofs]))))
   45 #define getwbe(buf,ofs) (be16toh(*((u_int16_t*)(&((u_int8_t*)(buf))[ofs]))))
   46 #define getdbe(buf,ofs) (be32toh(*((u_int32_t*)(&((u_int8_t*)(buf))[ofs]))))
   47 
   48 #define setwle(buf,ofs,val) \
   49         (*((u_int16_t*)(&((u_int8_t*)(buf))[ofs])))=htole16(val)
   50 #define setdle(buf,ofs,val) \
   51         (*((u_int32_t*)(&((u_int8_t*)(buf))[ofs])))=htole32(val)
   52 #define setwbe(buf,ofs,val) \
   53         (*((u_int16_t*)(&((u_int8_t*)(buf))[ofs])))=htobe16(val)
   54 #define setdbe(buf,ofs,val) \
   55         (*((u_int32_t*)(&((u_int8_t*)(buf))[ofs])))=htobe32(val)
   56 
   57 #ifdef _KERNEL
   58 
   59 #include <sys/mchain.h>
   60 
   61 #define NCPR_ALLOCED            0x0001  /* request structure was allocated */
   62 #define NCPR_DONTFREEONERR      0x0002  /* do not free structure on error */
   63 
   64 /* 
   65  * Structure to prepare ncp request and receive reply 
   66  */
   67 struct ncp_rq {
   68         int             nr_flags;
   69         struct mbchain  rq;
   70         struct mdchain  rp;
   71         int             nr_minrplen;    /* minimal rp size (-1 if not known) */
   72         int             nr_rpsize;      /* reply size minus ncp header */
   73         int             nr_cc;          /* completion code */
   74         int             nr_cs;          /* connection state */
   75         struct thread * nr_td;          /* thread that did rq */
   76         struct ucred *  nr_cred;        /* user that did rq */
   77         int             rexmit;
   78         struct ncp_conn*nr_conn;        /* back link */
   79 };
   80 
   81 int  ncp_rq_alloc(u_int8_t fn, struct ncp_conn *ncp, struct thread *td,
   82         struct ucred *cred, struct ncp_rq **rqpp);
   83 int  ncp_rq_alloc_any(u_int32_t ptype, u_int8_t fn, struct ncp_conn *ncp,
   84         struct thread *td,      struct ucred *cred, struct ncp_rq **rqpp);
   85 int  ncp_rq_alloc_subfn(u_int8_t fn, u_int8_t subfn, struct ncp_conn *ncp,
   86         struct thread *td,      struct ucred *cred, struct ncp_rq **rqpp);
   87 int  ncp_rq_init_any(struct ncp_rq *rqp, u_int32_t ptype, u_int8_t fn,
   88         struct ncp_conn *ncp, 
   89         struct thread *td, struct ucred *cred);
   90 void ncp_rq_done(struct ncp_rq *rqp);
   91 int  ncp_request(struct ncp_rq *rqp);
   92 int  ncp_request_int(struct ncp_rq *rqp);
   93 
   94 struct ncp_nlstables;
   95 
   96 int  ncp_rq_pathstring(struct ncp_rq *rqp, int size, const char *name, struct ncp_nlstables*);
   97 int  ncp_rq_dbase_path(struct ncp_rq *, u_int8_t vol_num,
   98                     u_int32_t dir_base, int namelen, u_char *name, struct ncp_nlstables *nt);
   99 int  ncp_rq_pstring(struct ncp_rq *rqp, const char *s);
  100 
  101 void ncp_sign_init(const char *logindata, char *sign_root);
  102 
  103 #else /* ifdef _KERNEL */
  104 
  105 #define DECLARE_RQ      struct ncp_buf conn1, *conn=&conn1
  106 
  107 #define ncp_add_byte(conn,x) (conn)->packet[(conn)->rqsize++]=x
  108 
  109 struct ncp_buf;
  110 
  111 __BEGIN_DECLS
  112 
  113 void ncp_init_request(struct ncp_buf *);
  114 void ncp_init_request_s(struct ncp_buf *, int);
  115 void ncp_add_word_lh(struct ncp_buf *, u_int16_t);
  116 void ncp_add_dword_lh(struct ncp_buf *, u_int32_t);
  117 void ncp_add_word_hl(struct ncp_buf *, u_int16_t);
  118 void ncp_add_dword_hl(struct ncp_buf *, u_int32_t);
  119 void ncp_add_mem(struct ncp_buf *, const void *, int);
  120 void ncp_add_mem_nls(struct ncp_buf *, const void *, int);
  121 void ncp_add_pstring(struct ncp_buf *, const char *);
  122 void ncp_add_handle_path(struct ncp_buf *, nuint32, nuint32, int, const char *);
  123 
  124 #define ncp_reply_data(conn,offset) ((conn)->packet+offset)
  125 #define ncp_reply_byte(conn,offset) (*(u_int8_t*)(ncp_reply_data(conn, offset)))
  126 
  127 u_int16_t ncp_reply_word_hl(struct ncp_buf *, int);
  128 u_int16_t ncp_reply_word_lh(struct ncp_buf *, int);
  129 u_int32_t ncp_reply_dword_hl(struct ncp_buf *, int);
  130 u_int32_t ncp_reply_dword_lh(struct ncp_buf *, int);
  131 
  132 static __inline void
  133 ConvertToNWfromDWORD(u_int32_t sfd, ncp_fh *fh) {
  134         fh->val1 = (fh->val.val32 = sfd);
  135         return;
  136 }
  137 
  138 __END_DECLS
  139 
  140 #endif /* ifdef _KERNEL */
  141 
  142 #endif  /* !_NETNCP_NCP_RQ_H_ */

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