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, 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 <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 #define htoles(x)       ((u_int16_t)(x))
   56 #define letohs(x)       ((u_int16_t)(x))
   57 #define htolel(x)       ((u_int32_t)(x))
   58 #define letohl(x)       ((u_int32_t)(x))
   59 
   60 #else
   61 #error "Macros for Big-Endians are incomplete"
   62 #define getwle(buf,ofs) ((u_int16_t)(getb(buf, ofs) | (getb(buf, ofs + 1) << 8)))
   63 #define getdle(buf,ofs) ((u_int32_t)(getb(buf, ofs) | \
   64                                     (getb(buf, ofs + 1) << 8) | \
   65                                     (getb(buf, ofs + 2) << 16) | \
   66                                     (getb(buf, ofs + 3) << 24)))
   67 #define getwbe(buf,ofs) (*((u_int16_t*)(&((u_int8_t*)(buf))[ofs])))
   68 #define getdbe(buf,ofs) (*((u_int32_t*)(&((u_int8_t*)(buf))[ofs])))
   69 /*
   70 #define setwle(buf,ofs,val) getwle(buf,ofs)=val
   71 #define setdle(buf,ofs,val) getdle(buf,ofs)=val
   72 */
   73 #define setwbe(buf,ofs,val) getwle(buf,ofs)=val
   74 #define setdbe(buf,ofs,val) getdle(buf,ofs)=val
   75 /*
   76 #define htoles(x)       ((u_int16_t)(x))
   77 #define letohs(x)       ((u_int16_t)(x))
   78 #define htolel(x)       ((u_int32_t)(x))
   79 #define letohl(x)       ((u_int32_t)(x))
   80 */
   81 #endif
   82 
   83 
   84 #ifdef _KERNEL
   85 struct ncp_nlstables;
   86 /* 
   87  * Structure to prepare ncp request and receive reply 
   88  */
   89 struct ncp_rq {
   90         struct ncp_conn *conn;          /* back link */
   91         struct mbuf     *rq;
   92         struct mbuf     *mrq;
   93         struct mbuf     *rp;
   94         struct mbuf     *mrp;
   95         caddr_t         bpos;
   96 /*      int             rqsize;*/               /* request size without ncp header */
   97         int             rpsize;         /* reply size minus ncp header */
   98         int             cc;             /* completion code */
   99         int             cs;             /* connection state */
  100         struct proc     *p;             /* proc that did rq */
  101         struct ucred    *cred;          /* user that did rq */
  102         int             rexmit;
  103 };
  104 
  105 #define DECLARE_RQ      struct ncp_rq rq;struct ncp_rq *rqp=&rq
  106 
  107 
  108 int  ncp_rq_head(struct ncp_rq *rqp,u_int32_t ptype, u_int8_t fn,struct proc *p,
  109     struct ucred *cred);
  110 int  ncp_rq_done(struct ncp_rq *rqp);
  111 
  112 /* common case for normal request */
  113 #define ncp_rq_init(rqp,fn,p,c) ncp_rq_head((rqp),NCP_REQUEST,(fn),(p),(c))
  114 #define ncp_rq_close(rqp)       ncp_rq_done((rqp))
  115 
  116 #define NCP_RQ_HEAD(fn,p,c)     ncp_rq_init(rqp,fn,p,c)
  117 #define NCP_RQ_HEAD_S(fn,sfn,p,c)       NCP_RQ_HEAD(fn,p,c);ncp_rq_word(rqp,0);ncp_rq_byte(rqp,(sfn))
  118 #define NCP_RQ_EXIT     bad: ncp_rq_close(rqp)
  119 #define NCP_RQ_EXIT_NB  ncp_rq_close(rqp)
  120 #define ncp_rq_word     ncp_rq_word_lh
  121 #define ncp_rq_dword    ncp_rq_dword_lh
  122 
  123 /*void ncp_init_request(struct ncp_rq *rqp, int fn);
  124 void ncp_close_request(struct ncp_rq *rqp);*/
  125 void ncp_rq_byte(struct ncp_rq *rqp, u_int8_t x);
  126 void ncp_rq_word_hl(struct ncp_rq *rqp, u_int16_t x);
  127 void ncp_rq_word_lh(struct ncp_rq *rqp, u_int16_t x);
  128 void ncp_rq_dword_lh(struct ncp_rq *rqp, u_int32_t x);
  129 static void ncp_rq_mem(struct ncp_rq *rqp, caddr_t source, int size);
  130 static int  ncp_rq_usermem(struct ncp_rq *rqp, caddr_t source, int size);
  131 int  ncp_rq_mbuf(struct ncp_rq *rqp, struct mbuf *m, int size);
  132 int  ncp_rq_putanymem(struct ncp_rq *rqp, caddr_t source, int size,int type);
  133 void ncp_rq_pathstring(struct ncp_rq *rqp, int size, char *name, struct ncp_nlstables*);
  134 void ncp_rq_dbase_path(struct ncp_rq *, u_int8_t vol_num,
  135                     u_int32_t dir_base, int namelen, u_char *name, struct ncp_nlstables *nt);
  136 void ncp_rq_pstring(struct ncp_rq *rqp, char *s);
  137 
  138 u_int8_t  ncp_rp_byte(struct ncp_rq *rqp);
  139 u_int16_t ncp_rp_word_hl(struct ncp_rq *rqp);
  140 u_int16_t ncp_rp_word_lh(struct ncp_rq *rqp);
  141 u_int32_t ncp_rp_dword_hl(struct ncp_rq *rqp);
  142 u_int32_t ncp_rp_dword_lh(struct ncp_rq *rqp);
  143 void      ncp_rp_mem(struct ncp_rq *rqp,caddr_t target, int size);
  144 int       ncp_rp_usermem(struct ncp_rq *rqp,caddr_t target, int size);
  145 int nwfs_mbuftouio(struct mbuf **mrep, struct uio *uiop, int siz, caddr_t *dpos);
  146 int nwfs_uiotombuf(struct uio *uiop, struct mbuf **mq, int siz, caddr_t *bpos);
  147 struct mbuf* ncp_rp_mbuf(struct ncp_rq *rqp, int size);
  148 
  149 static void __inline ncp_rq_mem(struct ncp_rq *rqp, caddr_t source, int size) {
  150         ncp_rq_putanymem(rqp,source,size,0);
  151 }
  152 static int __inline ncp_rq_usermem(struct ncp_rq *rqp, caddr_t source, int size) {
  153         return ncp_rq_putanymem(rqp,source,size,1);
  154 }
  155 void ncp_sign_init(const char *logindata, char *sign_root);
  156 
  157 #else /* ifdef _KERNEL */
  158 
  159 #define DECLARE_RQ      struct ncp_buf conn1, *conn=&conn1
  160 
  161 #define ncp_add_byte(conn,x) (conn)->packet[(conn)->rqsize++]=x
  162 
  163 struct ncp_buf;
  164 
  165 __BEGIN_DECLS
  166 
  167 void ncp_init_request(struct ncp_buf *);
  168 void ncp_init_request_s(struct ncp_buf *, int);
  169 void ncp_add_word_lh(struct ncp_buf *, u_int16_t);
  170 void ncp_add_dword_lh(struct ncp_buf *, u_int32_t);
  171 void ncp_add_word_hl(struct ncp_buf *, u_int16_t);
  172 void ncp_add_dword_hl(struct ncp_buf *, u_int32_t);
  173 void ncp_add_mem(struct ncp_buf *, const void *, int);
  174 void ncp_add_mem_nls(struct ncp_buf *, const void *, int);
  175 void ncp_add_pstring(struct ncp_buf *, const char *);
  176 void ncp_add_handle_path(struct ncp_buf *, nuint32, nuint32, int, const char *);
  177 
  178 #define ncp_reply_data(conn,offset) ((conn)->packet+offset)
  179 #define ncp_reply_byte(conn,offset) (*(u_int8_t*)(ncp_reply_data(conn, offset)))
  180 
  181 u_int16_t ncp_reply_word_hl(struct ncp_buf *, int);
  182 u_int16_t ncp_reply_word_lh(struct ncp_buf *, int);
  183 u_int32_t ncp_reply_dword_hl(struct ncp_buf *, int);
  184 u_int32_t ncp_reply_dword_lh(struct ncp_buf *, int);
  185 
  186 static __inline void
  187 ConvertToNWfromDWORD(u_int32_t sfd, ncp_fh *fh) {
  188         fh->val1 = (fh->val.val32 = sfd);
  189         return;
  190 }
  191 
  192 __END_DECLS
  193 
  194 #endif /* ifdef _KERNEL */
  195 
  196 #endif  /* !_NETNCP_NCP_RQ_H_ */

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