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: releng/5.2/sys/netncp/ncp_rq.h 111577 2003-02-26 21:25:55Z fjoe $
   33  */
   34 #ifndef _NETNCP_NCP_RQ_H_
   35 #define _NETNCP_NCP_RQ_H_
   36 
   37 #include <machine/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 #if (BYTE_ORDER == LITTLE_ENDIAN)
   44 
   45 #define getwle(buf,ofs) (*((u_int16_t*)(&((u_int8_t*)(buf))[ofs])))
   46 #define getdle(buf,ofs) (*((u_int32_t*)(&((u_int8_t*)(buf))[ofs])))
   47 #define getwbe(buf,ofs) (ntohs(getwle(buf,ofs)))
   48 #define getdbe(buf,ofs) (ntohl(getdle(buf,ofs)))
   49 
   50 #define setwle(buf,ofs,val) getwle(buf,ofs)=val
   51 #define setwbe(buf,ofs,val) getwle(buf,ofs)=htons(val)
   52 #define setdle(buf,ofs,val) getdle(buf,ofs)=val
   53 #define setdbe(buf,ofs,val) getdle(buf,ofs)=htonl(val)
   54 
   55 #else
   56 #error "Macros for Big-Endians are incomplete"
   57 #define getwle(buf,ofs) ((u_int16_t)(getb(buf, ofs) | (getb(buf, ofs + 1) << 8)))
   58 #define getdle(buf,ofs) ((u_int32_t)(getb(buf, ofs) | \
   59                                     (getb(buf, ofs + 1) << 8) | \
   60                                     (getb(buf, ofs + 2) << 16) | \
   61                                     (getb(buf, ofs + 3) << 24)))
   62 #define getwbe(buf,ofs) (*((u_int16_t*)(&((u_int8_t*)(buf))[ofs])))
   63 #define getdbe(buf,ofs) (*((u_int32_t*)(&((u_int8_t*)(buf))[ofs])))
   64 /*
   65 #define setwle(buf,ofs,val) getwle(buf,ofs)=val
   66 #define setdle(buf,ofs,val) getdle(buf,ofs)=val
   67 */
   68 #define setwbe(buf,ofs,val) getwle(buf,ofs)=val
   69 #define setdbe(buf,ofs,val) getdle(buf,ofs)=val
   70 /*
   71 #define htoles(x)       ((u_int16_t)(x))
   72 #define letohs(x)       ((u_int16_t)(x))
   73 #define htolel(x)       ((u_int32_t)(x))
   74 #define letohl(x)       ((u_int32_t)(x))
   75 */
   76 #endif
   77 
   78 
   79 #ifdef _KERNEL
   80 
   81 #include <sys/mchain.h>
   82 
   83 #define NCPR_ALLOCED            0x0001  /* request structure was allocated */
   84 #define NCPR_DONTFREEONERR      0x0002  /* do not free structure on error */
   85 
   86 /* 
   87  * Structure to prepare ncp request and receive reply 
   88  */
   89 struct ncp_rq {
   90         int             nr_flags;
   91         struct mbchain  rq;
   92         struct mdchain  rp;
   93         int             nr_minrplen;    /* minimal rp size (-1 if not known) */
   94         int             nr_rpsize;      /* reply size minus ncp header */
   95         int             nr_cc;          /* completion code */
   96         int             nr_cs;          /* connection state */
   97         struct thread * nr_td;          /* thread that did rq */
   98         struct ucred *  nr_cred;        /* user that did rq */
   99         int             rexmit;
  100         struct ncp_conn*nr_conn;        /* back link */
  101 };
  102 
  103 int  ncp_rq_alloc(u_int8_t fn, struct ncp_conn *ncp, struct thread *td,
  104         struct ucred *cred, struct ncp_rq **rqpp);
  105 int  ncp_rq_alloc_any(u_int32_t ptype, u_int8_t fn, struct ncp_conn *ncp,
  106         struct thread *td,      struct ucred *cred, struct ncp_rq **rqpp);
  107 int  ncp_rq_alloc_subfn(u_int8_t fn, u_int8_t subfn, struct ncp_conn *ncp,
  108         struct thread *td,      struct ucred *cred, struct ncp_rq **rqpp);
  109 int  ncp_rq_init_any(struct ncp_rq *rqp, u_int32_t ptype, u_int8_t fn,
  110         struct ncp_conn *ncp, 
  111         struct thread *td, struct ucred *cred);
  112 void ncp_rq_done(struct ncp_rq *rqp);
  113 int  ncp_request(struct ncp_rq *rqp);
  114 int  ncp_request_int(struct ncp_rq *rqp);
  115 
  116 struct ncp_nlstables;
  117 
  118 int  ncp_rq_pathstring(struct ncp_rq *rqp, int size, const char *name, struct ncp_nlstables*);
  119 int  ncp_rq_dbase_path(struct ncp_rq *, u_int8_t vol_num,
  120                     u_int32_t dir_base, int namelen, u_char *name, struct ncp_nlstables *nt);
  121 int  ncp_rq_pstring(struct ncp_rq *rqp, const char *s);
  122 
  123 void ncp_sign_init(const char *logindata, char *sign_root);
  124 
  125 #else /* ifdef _KERNEL */
  126 
  127 #define DECLARE_RQ      struct ncp_buf conn1, *conn=&conn1
  128 
  129 #define ncp_add_byte(conn,x) (conn)->packet[(conn)->rqsize++]=x
  130 
  131 struct ncp_buf;
  132 
  133 __BEGIN_DECLS
  134 
  135 void ncp_init_request(struct ncp_buf *);
  136 void ncp_init_request_s(struct ncp_buf *, int);
  137 void ncp_add_word_lh(struct ncp_buf *, u_int16_t);
  138 void ncp_add_dword_lh(struct ncp_buf *, u_int32_t);
  139 void ncp_add_word_hl(struct ncp_buf *, u_int16_t);
  140 void ncp_add_dword_hl(struct ncp_buf *, u_int32_t);
  141 void ncp_add_mem(struct ncp_buf *, const void *, int);
  142 void ncp_add_mem_nls(struct ncp_buf *, const void *, int);
  143 void ncp_add_pstring(struct ncp_buf *, const char *);
  144 void ncp_add_handle_path(struct ncp_buf *, nuint32, nuint32, int, const char *);
  145 
  146 #define ncp_reply_data(conn,offset) ((conn)->packet+offset)
  147 #define ncp_reply_byte(conn,offset) (*(u_int8_t*)(ncp_reply_data(conn, offset)))
  148 
  149 u_int16_t ncp_reply_word_hl(struct ncp_buf *, int);
  150 u_int16_t ncp_reply_word_lh(struct ncp_buf *, int);
  151 u_int32_t ncp_reply_dword_hl(struct ncp_buf *, int);
  152 u_int32_t ncp_reply_dword_lh(struct ncp_buf *, int);
  153 
  154 static __inline void
  155 ConvertToNWfromDWORD(u_int32_t sfd, ncp_fh *fh) {
  156         fh->val1 = (fh->val.val32 = sfd);
  157         return;
  158 }
  159 
  160 __END_DECLS
  161 
  162 #endif /* ifdef _KERNEL */
  163 
  164 #endif  /* !_NETNCP_NCP_RQ_H_ */

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