oncrpc/rpc_call.c

   1 /*********************************************************************
   2  * RPC for the Windows NT Operating System
   3  * 1993 by Martin F. Gergeleit
   4  * Users may use, copy or modify Sun RPC for the Windows NT Operating
   5  * System according to the Sun copyright below.
   6  *
   7  * RPC for the Windows NT Operating System COMES WITH ABSOLUTELY NO
   8  * WARRANTY, NOR WILL I BE LIABLE FOR ANY DAMAGES INCURRED FROM THE
   9  * USE OF. USE ENTIRELY AT YOUR OWN RISK!!!
  10  *********************************************************************/
  11 /* @(#)rpc_callmsg.c    2.1 88/07/29 4.0 RPCSRC */
  12 /*
  13  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  14  * unrestricted use provided that this legend is included on all tape
  15  * media and as a part of the software program in whole or part.  Users
  16  * may copy or modify Sun RPC without charge, but are not authorized
  17  * to license or distribute it to anyone else except as part of a product or
  18  * program developed by the user.
  19  *
  20  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  21  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  23  *
  24  * Sun RPC is provided with no support and without any obligation on the
  25  * part of Sun Microsystems, Inc. to assist in its use, correction,
  26  * modification or enhancement.
  27  *
  28  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  29  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  30  * OR ANY PART THEREOF.
  31  *
  32  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  33  * or profits or other special, indirect and consequential damages, even if
  34  * Sun has been advised of the possibility of such damages.
  35  *
  36  * Sun Microsystems, Inc.
  37  * 2550 Garcia Avenue
  38  * Mountain View, California  94043
  39  */
  40 #if !defined(lint) && defined(SCCSIDS)
  41 static char sccsid[] = "@(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro";
  42 #endif
  43
  44 /*
  45  * rpc_callmsg.c
  46  *
  47  * Copyright (C) 1984, Sun Microsystems, Inc.
  48  *
  49  */
  50
  51 #ifndef WIN32
  52 #include <sys/param.h>
  53 #endif
  54 #include <rpc/rpc.h>
  55
  56 /*
  57  * XDR a call message
  58  */
  59 bool_t
  60 xdr_callmsg(xdrs, cmsg)
  61         register XDR *xdrs;
  62         register struct rpc_msg *cmsg;
  63 {
  64         register long *buf;
  65         register struct opaque_auth *oa;
  66
  67         if (xdrs->x_op == XDR_ENCODE) {
  68                 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) {
  69                         return (FALSE);
  70                 }
  71                 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) {
  72                         return (FALSE);
  73                 }
  74                 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT
  75                         + RNDUP(cmsg->rm_call.cb_cred.oa_length)
  76                         + 2 * BYTES_PER_XDR_UNIT
  77                         + RNDUP(cmsg->rm_call.cb_verf.oa_length));
  78                 if (buf != NULL) {
  79                         IXDR_PUT_LONG(buf, cmsg->rm_xid);
  80                         IXDR_PUT_ENUM(buf, cmsg->rm_direction);
  81                         if (cmsg->rm_direction != CALL) {
  82                                 return (FALSE);
  83                         }
  84                         IXDR_PUT_LONG(buf, cmsg->rm_call.cb_rpcvers);
  85                         if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
  86                                 return (FALSE);
  87                         }
  88                         IXDR_PUT_LONG(buf, cmsg->rm_call.cb_prog);
  89                         IXDR_PUT_LONG(buf, cmsg->rm_call.cb_vers);
  90                         IXDR_PUT_LONG(buf, cmsg->rm_call.cb_proc);
  91                         oa = &cmsg->rm_call.cb_cred;
  92                         IXDR_PUT_ENUM(buf, oa->oa_flavor);
  93                         IXDR_PUT_LONG(buf, oa->oa_length);
  94                         if (oa->oa_length) {
  95                                 bcopy(oa->oa_base, (caddr_t)buf, oa->oa_length);
  96                                 buf += RNDUP(oa->oa_length) / sizeof (long);
  97                         }
  98                         oa = &cmsg->rm_call.cb_verf;
  99                         IXDR_PUT_ENUM(buf, oa->oa_flavor);
 100                         IXDR_PUT_LONG(buf, oa->oa_length);
 101                         if (oa->oa_length) {
 102                                 bcopy(oa->oa_base, (caddr_t)buf, oa->oa_length);
 103                                 /* no real need....
 104                                 buf += RNDUP(oa->oa_length) / sizeof (long);
 105                                 */
 106                         }
 107                         return (TRUE);
 108                 }
 109         }
 110         if (xdrs->x_op == XDR_DECODE) {
 111                 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT);
 112                 if (buf != NULL) {
 113                         cmsg->rm_xid = IXDR_GET_LONG(buf);
 114                         cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type);
 115                         if (cmsg->rm_direction != CALL) {
 116                                 return (FALSE);
 117                         }
 118                         cmsg->rm_call.cb_rpcvers = IXDR_GET_LONG(buf);
 119                         if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
 120                                 return (FALSE);
 121                         }
 122                         cmsg->rm_call.cb_prog = IXDR_GET_LONG(buf);
 123                         cmsg->rm_call.cb_vers = IXDR_GET_LONG(buf);
 124                         cmsg->rm_call.cb_proc = IXDR_GET_LONG(buf);
 125                         oa = &cmsg->rm_call.cb_cred;
 126                         oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
 127                         oa->oa_length = IXDR_GET_LONG(buf);
 128                         if (oa->oa_length) {
 129                                 if (oa->oa_length > MAX_AUTH_BYTES) {
 130                                         return (FALSE);
 131                                 }
 132                                 if (oa->oa_base == NULL) {
 133                                         oa->oa_base = (caddr_t)
 134                                                 mem_alloc(oa->oa_length);
 135                                 }
 136                                 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
 137                                 if (buf == NULL) {
 138                                         if (xdr_opaque(xdrs, oa->oa_base,
 139                                             oa->oa_length) == FALSE) {
 140                                                 return (FALSE);
 141                                         }
 142                                 } else {
 143                                         bcopy((caddr_t)buf, oa->oa_base,
 144                                             oa->oa_length);
 145                                         /* no real need....
 146                                         buf += RNDUP(oa->oa_length) /
 147                                                 sizeof (long);
 148                                         */
 149                                 }
 150                         }
 151                         oa = &cmsg->rm_call.cb_verf;
 152                         buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT);
 153                         if (buf == NULL) {
 154                                 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE ||
 155                                     xdr_u_int(xdrs, &oa->oa_length) == FALSE) {
 156                                         return (FALSE);
 157                                 }
 158                         } else {
 159                                 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
 160                                 oa->oa_length = IXDR_GET_LONG(buf);
 161                         }
 162                         if (oa->oa_length) {
 163                                 if (oa->oa_length > MAX_AUTH_BYTES) {
 164                                         return (FALSE);
 165                                 }
 166                                 if (oa->oa_base == NULL) {
 167                                         oa->oa_base = (caddr_t)
 168                                                 mem_alloc(oa->oa_length);
 169                                 }
 170                                 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
 171                                 if (buf == NULL) {
 172                                         if (xdr_opaque(xdrs, oa->oa_base,
 173                                             oa->oa_length) == FALSE) {
 174                                                 return (FALSE);
 175                                         }
 176                                 } else {
 177                                         bcopy((caddr_t)buf, oa->oa_base,
 178                                             oa->oa_length);
 179                                         /* no real need...
 180                                         buf += RNDUP(oa->oa_length) /
 181                                                 sizeof (long);
 182                                         */
 183                                 }
 184                         }
 185                         return (TRUE);
 186                 }
 187         }
 188         if (
 189             xdr_u_long(xdrs, &(cmsg->rm_xid)) &&
 190             xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) &&
 191             (cmsg->rm_direction == CALL) &&
 192             xdr_u_long(xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
 193             (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
 194             xdr_u_long(xdrs, &(cmsg->rm_call.cb_prog)) &&
 195             xdr_u_long(xdrs, &(cmsg->rm_call.cb_vers)) &&
 196             xdr_u_long(xdrs, &(cmsg->rm_call.cb_proc)) &&
 197             xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) )
 198             return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf)));
 199         return (FALSE);
 200 }
 201