1 /* 2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 3 * unrestricted use provided that this legend is included on all tape 4 * media and as a part of the software program in whole or part. Users 5 * may copy or modify Sun RPC without charge, but are not authorized 6 * to license or distribute it to anyone else except as part of a product or 7 * program developed by the user. 8 * 9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 12 * 13 * Sun RPC is provided with no support and without any obligation on the 14 * part of Sun Microsystems, Inc. to assist in its use, correction, 15 * modification or enhancement. 16 * 17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 19 * OR ANY PART THEREOF. 20 * 21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 22 * or profits or other special, indirect and consequential damages, even if 23 * Sun has been advised of the possibility of such damages. 24 * 25 * Sun Microsystems, Inc. 26 * 2550 Garcia Avenue 27 * Mountain View, California 94043 28 * 29 * @(#)clnt_raw.c 1.22 87/08/11 Copyr 1984 Sun Micro 30 * @(#)clnt_raw.c 2.2 88/08/01 4.0 RPCSRC 31 * $FreeBSD: src/lib/libc/rpc/clnt_raw.c,v 1.10 1999/08/28 00:00:36 peter Exp $ 32 * $DragonFly: src/lib/libc/rpc/clnt_raw.c,v 1.3 2004/10/25 19:38:01 drhodus Exp $ 33 */ 34 35 /* 36 * clnt_raw.c 37 * 38 * Copyright (C) 1984, Sun Microsystems, Inc. 39 * 40 * Memory based rpc for simple testing and timing. 41 * Interface to create an rpc client and server in the same process. 42 * This lets us similate rpc and get round trip overhead, without 43 * any interference from the kernal. 44 */ 45 46 #include <rpc/rpc.h> 47 #include <stdlib.h> 48 #include <stdio.h> 49 50 #define MCALL_MSG_SIZE 24 51 52 /* 53 * This is the "network" we will be moving stuff over. 54 */ 55 static struct clntraw_private { 56 CLIENT client_object; 57 XDR xdr_stream; 58 char _raw_buf[UDPMSGSIZE]; 59 char mashl_callmsg[MCALL_MSG_SIZE]; 60 u_int mcnt; 61 } *clntraw_private; 62 63 static enum clnt_stat clntraw_call(); 64 static void clntraw_abort(); 65 static void clntraw_geterr(); 66 static bool_t clntraw_freeres(); 67 static bool_t clntraw_control(); 68 static void clntraw_destroy(); 69 70 static struct clnt_ops client_ops = { 71 clntraw_call, 72 clntraw_abort, 73 clntraw_geterr, 74 clntraw_freeres, 75 clntraw_destroy, 76 clntraw_control 77 }; 78 79 void svc_getreq(); 80 81 /* 82 * Create a client handle for memory based rpc. 83 */ 84 CLIENT * 85 clntraw_create(prog, vers) 86 u_long prog; 87 u_long vers; 88 { 89 struct clntraw_private *clp = clntraw_private; 90 struct rpc_msg call_msg; 91 XDR *xdrs = &clp->xdr_stream; 92 CLIENT *client = &clp->client_object; 93 94 if (clp == 0) { 95 clp = (struct clntraw_private *)calloc(1, sizeof (*clp)); 96 if (clp == 0) 97 return (0); 98 clntraw_private = clp; 99 } 100 /* 101 * pre-serialize the static part of the call msg and stash it away 102 */ 103 call_msg.rm_direction = CALL; 104 call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; 105 call_msg.rm_call.cb_prog = prog; 106 call_msg.rm_call.cb_vers = vers; 107 xdrmem_create(xdrs, clp->mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE); 108 if (! xdr_callhdr(xdrs, &call_msg)) { 109 perror("clnt_raw.c - Fatal header serialization error."); 110 } 111 clp->mcnt = XDR_GETPOS(xdrs); 112 XDR_DESTROY(xdrs); 113 114 /* 115 * Set xdrmem for client/server shared buffer 116 */ 117 xdrmem_create(xdrs, clp->_raw_buf, UDPMSGSIZE, XDR_FREE); 118 119 /* 120 * create client handle 121 */ 122 client->cl_ops = &client_ops; 123 client->cl_auth = authnone_create(); 124 return (client); 125 } 126 127 static enum clnt_stat 128 clntraw_call(h, proc, xargs, argsp, xresults, resultsp, timeout) 129 CLIENT *h; 130 u_long proc; 131 xdrproc_t xargs; 132 caddr_t argsp; 133 xdrproc_t xresults; 134 caddr_t resultsp; 135 struct timeval timeout; 136 { 137 struct clntraw_private *clp = clntraw_private; 138 XDR *xdrs = &clp->xdr_stream; 139 struct rpc_msg msg; 140 enum clnt_stat status; 141 struct rpc_err error; 142 143 if (clp == 0) 144 return (RPC_FAILED); 145 call_again: 146 /* 147 * send request 148 */ 149 xdrs->x_op = XDR_ENCODE; 150 XDR_SETPOS(xdrs, 0); 151 ((struct rpc_msg *)clp->mashl_callmsg)->rm_xid ++ ; 152 if ((! XDR_PUTBYTES(xdrs, clp->mashl_callmsg, clp->mcnt)) || 153 (! XDR_PUTLONG(xdrs, (long *)&proc)) || 154 (! AUTH_MARSHALL(h->cl_auth, xdrs)) || 155 (! (*xargs)(xdrs, argsp))) { 156 return (RPC_CANTENCODEARGS); 157 } 158 (void)XDR_GETPOS(xdrs); /* called just to cause overhead */ 159 160 /* 161 * We have to call server input routine here because this is 162 * all going on in one process. Yuk. 163 */ 164 svc_getreq(1); 165 166 /* 167 * get results 168 */ 169 xdrs->x_op = XDR_DECODE; 170 XDR_SETPOS(xdrs, 0); 171 msg.acpted_rply.ar_verf = _null_auth; 172 msg.acpted_rply.ar_results.where = resultsp; 173 msg.acpted_rply.ar_results.proc = xresults; 174 if (! xdr_replymsg(xdrs, &msg)) 175 return (RPC_CANTDECODERES); 176 _seterr_reply(&msg, &error); 177 status = error.re_status; 178 179 if (status == RPC_SUCCESS) { 180 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) { 181 status = RPC_AUTHERROR; 182 } 183 } /* end successful completion */ 184 else { 185 if (AUTH_REFRESH(h->cl_auth)) 186 goto call_again; 187 } /* end of unsuccessful completion */ 188 189 if (status == RPC_SUCCESS) { 190 if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) { 191 status = RPC_AUTHERROR; 192 } 193 if (msg.acpted_rply.ar_verf.oa_base != NULL) { 194 xdrs->x_op = XDR_FREE; 195 (void)xdr_opaque_auth(xdrs, &(msg.acpted_rply.ar_verf)); 196 } 197 } 198 199 return (status); 200 } 201 202 static void 203 clntraw_geterr() 204 { 205 } 206 207 208 static bool_t 209 clntraw_freeres(cl, xdr_res, res_ptr) 210 CLIENT *cl; 211 xdrproc_t xdr_res; 212 caddr_t res_ptr; 213 { 214 struct clntraw_private *clp = clntraw_private; 215 XDR *xdrs = &clp->xdr_stream; 216 bool_t rval; 217 218 if (clp == 0) 219 { 220 rval = (bool_t) RPC_FAILED; 221 return (rval); 222 } 223 xdrs->x_op = XDR_FREE; 224 return ((*xdr_res)(xdrs, res_ptr)); 225 } 226 227 static void 228 clntraw_abort() 229 { 230 } 231 232 static bool_t 233 clntraw_control() 234 { 235 return (FALSE); 236 } 237 238 static void 239 clntraw_destroy() 240 { 241 } 242