1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate * 22*0Sstevel@tonic-gate * Copyright 1991 Sun Microsystems, Inc. All rights reserved. 23*0Sstevel@tonic-gate * Use is subject to license terms. 24*0Sstevel@tonic-gate */ 25*0Sstevel@tonic-gate /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 26*0Sstevel@tonic-gate /* All Rights Reserved */ 27*0Sstevel@tonic-gate /* 28*0Sstevel@tonic-gate * Portions of this source code were derived from Berkeley 29*0Sstevel@tonic-gate * 4.3 BSD under license from the Regents of the University of 30*0Sstevel@tonic-gate * California. 31*0Sstevel@tonic-gate */ 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate /* 36*0Sstevel@tonic-gate * pmap_prot.c 37*0Sstevel@tonic-gate * Protocol for the local binder service, or pmap. 38*0Sstevel@tonic-gate * All the pmap xdr routines here. 39*0Sstevel@tonic-gate * 40*0Sstevel@tonic-gate */ 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate #include <rpc/types.h> 43*0Sstevel@tonic-gate #include <rpc/trace.h> 44*0Sstevel@tonic-gate #include <rpc/xdr.h> 45*0Sstevel@tonic-gate #include <rpc/pmap_prot.h> 46*0Sstevel@tonic-gate #include <rpc/pmap_rmt.h> 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate bool_t 49*0Sstevel@tonic-gate xdr_pmap(xdrs, objp) 50*0Sstevel@tonic-gate XDR *xdrs; 51*0Sstevel@tonic-gate struct pmap *objp; 52*0Sstevel@tonic-gate { 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate register rpc_inline_t *buf; 55*0Sstevel@tonic-gate bool_t dummy; 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 0); 58*0Sstevel@tonic-gate if (xdrs->x_op == XDR_ENCODE) { 59*0Sstevel@tonic-gate buf = XDR_INLINE(xdrs, 4 * BYTES_PER_XDR_UNIT); 60*0Sstevel@tonic-gate if (buf == NULL) { 61*0Sstevel@tonic-gate if (!xdr_u_int(xdrs, (u_int *)&objp->pm_prog)) { 62*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 63*0Sstevel@tonic-gate return (FALSE); 64*0Sstevel@tonic-gate } 65*0Sstevel@tonic-gate if (!xdr_u_int(xdrs, (u_int *)&objp->pm_vers)) { 66*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 67*0Sstevel@tonic-gate return (FALSE); 68*0Sstevel@tonic-gate } 69*0Sstevel@tonic-gate if (!xdr_u_int(xdrs, (u_int *)&objp->pm_prot)) { 70*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 71*0Sstevel@tonic-gate return (FALSE); 72*0Sstevel@tonic-gate } 73*0Sstevel@tonic-gate if (!xdr_u_int(xdrs, (u_int *)&objp->pm_port)) { 74*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 75*0Sstevel@tonic-gate return (FALSE); 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate } else { 78*0Sstevel@tonic-gate IXDR_PUT_U_INT32(buf, objp->pm_prog); 79*0Sstevel@tonic-gate IXDR_PUT_U_INT32(buf, objp->pm_vers); 80*0Sstevel@tonic-gate IXDR_PUT_U_INT32(buf, objp->pm_prot); 81*0Sstevel@tonic-gate IXDR_PUT_U_INT32(buf, objp->pm_port); 82*0Sstevel@tonic-gate } 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 85*0Sstevel@tonic-gate return (TRUE); 86*0Sstevel@tonic-gate } else if (xdrs->x_op == XDR_DECODE) { 87*0Sstevel@tonic-gate buf = XDR_INLINE(xdrs, 4 * BYTES_PER_XDR_UNIT); 88*0Sstevel@tonic-gate if (buf == NULL) { 89*0Sstevel@tonic-gate if (!xdr_u_int(xdrs, (u_int *)&objp->pm_prog)) { 90*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 91*0Sstevel@tonic-gate return (FALSE); 92*0Sstevel@tonic-gate } 93*0Sstevel@tonic-gate if (!xdr_u_int(xdrs, (u_int *)&objp->pm_vers)) { 94*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 95*0Sstevel@tonic-gate return (FALSE); 96*0Sstevel@tonic-gate } 97*0Sstevel@tonic-gate if (!xdr_u_int(xdrs, (u_int *)&objp->pm_prot)) { 98*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 99*0Sstevel@tonic-gate return (FALSE); 100*0Sstevel@tonic-gate } 101*0Sstevel@tonic-gate if (!xdr_u_int(xdrs, (u_int *)&objp->pm_port)) { 102*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 103*0Sstevel@tonic-gate return (FALSE); 104*0Sstevel@tonic-gate } 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate } else { 107*0Sstevel@tonic-gate objp->pm_prog = IXDR_GET_U_INT32(buf); 108*0Sstevel@tonic-gate objp->pm_vers = IXDR_GET_U_INT32(buf); 109*0Sstevel@tonic-gate objp->pm_prot = IXDR_GET_U_INT32(buf); 110*0Sstevel@tonic-gate objp->pm_port = IXDR_GET_U_INT32(buf); 111*0Sstevel@tonic-gate } 112*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 113*0Sstevel@tonic-gate return (TRUE); 114*0Sstevel@tonic-gate } 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate if (xdr_u_int(xdrs, (u_int *)&objp->pm_prog) && 117*0Sstevel@tonic-gate xdr_u_int(xdrs, (u_int *)&objp->pm_vers) && 118*0Sstevel@tonic-gate xdr_u_int(xdrs, (u_int *)&objp->pm_prot)) { 119*0Sstevel@tonic-gate dummy = xdr_u_int(xdrs, (u_int *)&objp->pm_port); 120*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 121*0Sstevel@tonic-gate return (dummy); 122*0Sstevel@tonic-gate } 123*0Sstevel@tonic-gate trace1(TR_xdr_pmap, 1); 124*0Sstevel@tonic-gate return (FALSE); 125*0Sstevel@tonic-gate } 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate /* 128*0Sstevel@tonic-gate * pmaplist_ptr implements a linked list. The RPCL definition from 129*0Sstevel@tonic-gate * pmap_prot.x is: 130*0Sstevel@tonic-gate * 131*0Sstevel@tonic-gate * struct pm__list { 132*0Sstevel@tonic-gate * pmap pml_map; 133*0Sstevel@tonic-gate * struct pm__list *pml_next; 134*0Sstevel@tonic-gate * }; 135*0Sstevel@tonic-gate * typedef pm__list *pmaplist_ptr; 136*0Sstevel@tonic-gate * 137*0Sstevel@tonic-gate * Recall that "pointers" in XDR are encoded as a boolean, indicating whether 138*0Sstevel@tonic-gate * there's any data behind the pointer, followed by the data (if any exists). 139*0Sstevel@tonic-gate * The boolean can be interpreted as ``more data follows me''; if FALSE then 140*0Sstevel@tonic-gate * nothing follows the boolean; if TRUE then the boolean is followed by an 141*0Sstevel@tonic-gate * actual struct pmap, and another pmaplist_ptr (declared in RPCL as "struct 142*0Sstevel@tonic-gate * pmaplist *"). 143*0Sstevel@tonic-gate * 144*0Sstevel@tonic-gate * This could be implemented via the xdr_pointer type, though this would 145*0Sstevel@tonic-gate * result in one recursive call per element in the list. Rather than do that 146*0Sstevel@tonic-gate * we can ``unwind'' the recursion into a while loop and use xdr_reference to 147*0Sstevel@tonic-gate * serialize the pmap elements. 148*0Sstevel@tonic-gate */ 149*0Sstevel@tonic-gate bool_t 150*0Sstevel@tonic-gate xdr_pmaplist_ptr(xdrs, rp) 151*0Sstevel@tonic-gate register XDR *xdrs; 152*0Sstevel@tonic-gate register pmaplist_ptr *rp; 153*0Sstevel@tonic-gate { 154*0Sstevel@tonic-gate /* 155*0Sstevel@tonic-gate * more_elements is pre-computed in case the direction is 156*0Sstevel@tonic-gate * XDR_ENCODE or XDR_FREE. more_elements is overwritten by 157*0Sstevel@tonic-gate * xdr_bool when the direction is XDR_DECODE. 158*0Sstevel@tonic-gate */ 159*0Sstevel@tonic-gate bool_t more_elements; 160*0Sstevel@tonic-gate register int freeing = (xdrs->x_op == XDR_FREE); 161*0Sstevel@tonic-gate pmaplist_ptr next; 162*0Sstevel@tonic-gate pmaplist_ptr next_copy; 163*0Sstevel@tonic-gate 164*0Sstevel@tonic-gate trace1(TR_xdr_pmaplist_ptr, 0); 165*0Sstevel@tonic-gate /*CONSTANTCONDITION*/ 166*0Sstevel@tonic-gate while (TRUE) { 167*0Sstevel@tonic-gate more_elements = (bool_t)(*rp != NULL); 168*0Sstevel@tonic-gate if (! xdr_bool(xdrs, &more_elements)) { 169*0Sstevel@tonic-gate trace1(TR_xdr_pmaplist_ptr, 1); 170*0Sstevel@tonic-gate return (FALSE); 171*0Sstevel@tonic-gate } 172*0Sstevel@tonic-gate if (! more_elements) { 173*0Sstevel@tonic-gate trace1(TR_xdr_pmaplist_ptr, 1); 174*0Sstevel@tonic-gate return (TRUE); /* we are done */ 175*0Sstevel@tonic-gate } 176*0Sstevel@tonic-gate /* 177*0Sstevel@tonic-gate * the unfortunate side effect of non-recursion is that in 178*0Sstevel@tonic-gate * the case of freeing we must remember the next object 179*0Sstevel@tonic-gate * before we free the current object ... 180*0Sstevel@tonic-gate */ 181*0Sstevel@tonic-gate if (freeing) 182*0Sstevel@tonic-gate next = (*rp)->pml_next; 183*0Sstevel@tonic-gate if (! xdr_reference(xdrs, (caddr_t *)rp, 184*0Sstevel@tonic-gate (u_int)sizeof (struct pmaplist), (xdrproc_t) xdr_pmap)) { 185*0Sstevel@tonic-gate trace1(TR_xdr_pmaplist_ptr, 1); 186*0Sstevel@tonic-gate return (FALSE); 187*0Sstevel@tonic-gate } 188*0Sstevel@tonic-gate if (freeing) { 189*0Sstevel@tonic-gate next_copy = next; 190*0Sstevel@tonic-gate rp = &next_copy; 191*0Sstevel@tonic-gate /* 192*0Sstevel@tonic-gate * Note that in the subsequent iteration, next_copy 193*0Sstevel@tonic-gate * gets nulled out by the xdr_reference 194*0Sstevel@tonic-gate * but next itself survives. 195*0Sstevel@tonic-gate */ 196*0Sstevel@tonic-gate } else { 197*0Sstevel@tonic-gate rp = &((*rp)->pml_next); 198*0Sstevel@tonic-gate } 199*0Sstevel@tonic-gate } 200*0Sstevel@tonic-gate /*NOTREACHED*/ 201*0Sstevel@tonic-gate } 202*0Sstevel@tonic-gate 203*0Sstevel@tonic-gate /* 204*0Sstevel@tonic-gate * xdr_pmaplist() is specified to take a PMAPLIST **, but is identical in 205*0Sstevel@tonic-gate * functionality to xdr_pmaplist_ptr(). 206*0Sstevel@tonic-gate */ 207*0Sstevel@tonic-gate bool_t 208*0Sstevel@tonic-gate xdr_pmaplist(xdrs, rp) 209*0Sstevel@tonic-gate register XDR *xdrs; 210*0Sstevel@tonic-gate register PMAPLIST **rp; 211*0Sstevel@tonic-gate { 212*0Sstevel@tonic-gate bool_t dummy; 213*0Sstevel@tonic-gate 214*0Sstevel@tonic-gate dummy = xdr_pmaplist_ptr(xdrs, (pmaplist_ptr *)rp); 215*0Sstevel@tonic-gate return (dummy); 216*0Sstevel@tonic-gate } 217*0Sstevel@tonic-gate 218*0Sstevel@tonic-gate 219*0Sstevel@tonic-gate /* 220*0Sstevel@tonic-gate * XDR remote call arguments 221*0Sstevel@tonic-gate * written for XDR_ENCODE direction only 222*0Sstevel@tonic-gate */ 223*0Sstevel@tonic-gate bool_t 224*0Sstevel@tonic-gate xdr_rmtcallargs(xdrs, cap) 225*0Sstevel@tonic-gate register XDR *xdrs; 226*0Sstevel@tonic-gate register struct p_rmtcallargs *cap; 227*0Sstevel@tonic-gate { 228*0Sstevel@tonic-gate u_int lenposition, argposition, position; 229*0Sstevel@tonic-gate register rpc_inline_t *buf; 230*0Sstevel@tonic-gate 231*0Sstevel@tonic-gate 232*0Sstevel@tonic-gate trace1(TR_xdr_rmtcallargs, 0); 233*0Sstevel@tonic-gate buf = XDR_INLINE(xdrs, 3 * BYTES_PER_XDR_UNIT); 234*0Sstevel@tonic-gate if (buf == NULL) { 235*0Sstevel@tonic-gate if (!xdr_u_int(xdrs, (u_int *)&(cap->prog)) || 236*0Sstevel@tonic-gate !xdr_u_int(xdrs, (u_int *)&(cap->vers)) || 237*0Sstevel@tonic-gate !xdr_u_int(xdrs, (u_int *)&(cap->proc))) { 238*0Sstevel@tonic-gate trace1(TR_xdr_rmtcallargs, 1); 239*0Sstevel@tonic-gate return (FALSE); 240*0Sstevel@tonic-gate } 241*0Sstevel@tonic-gate } else { 242*0Sstevel@tonic-gate IXDR_PUT_U_INT32(buf, cap->prog); 243*0Sstevel@tonic-gate IXDR_PUT_U_INT32(buf, cap->vers); 244*0Sstevel@tonic-gate IXDR_PUT_U_INT32(buf, cap->proc); 245*0Sstevel@tonic-gate } 246*0Sstevel@tonic-gate 247*0Sstevel@tonic-gate /* 248*0Sstevel@tonic-gate * All the jugglery for just getting the size of the arguments 249*0Sstevel@tonic-gate */ 250*0Sstevel@tonic-gate lenposition = XDR_GETPOS(xdrs); 251*0Sstevel@tonic-gate if (! xdr_u_int(xdrs, &(cap->args.args_len))) { 252*0Sstevel@tonic-gate trace1(TR_xdr_rmtcallargs, 1); 253*0Sstevel@tonic-gate return (FALSE); 254*0Sstevel@tonic-gate } 255*0Sstevel@tonic-gate argposition = XDR_GETPOS(xdrs); 256*0Sstevel@tonic-gate if (! (*cap->xdr_args)(xdrs, cap->args.args_val)) { 257*0Sstevel@tonic-gate trace1(TR_xdr_rmtcallargs, 1); 258*0Sstevel@tonic-gate return (FALSE); 259*0Sstevel@tonic-gate } 260*0Sstevel@tonic-gate position = XDR_GETPOS(xdrs); 261*0Sstevel@tonic-gate cap->args.args_len = position - argposition; 262*0Sstevel@tonic-gate XDR_SETPOS(xdrs, lenposition); 263*0Sstevel@tonic-gate if (! xdr_u_int(xdrs, &(cap->args.args_len))) { 264*0Sstevel@tonic-gate trace1(TR_xdr_rmtcallargs, 1); 265*0Sstevel@tonic-gate return (FALSE); 266*0Sstevel@tonic-gate } 267*0Sstevel@tonic-gate XDR_SETPOS(xdrs, position); 268*0Sstevel@tonic-gate trace1(TR_xdr_rmtcallargs, 1); 269*0Sstevel@tonic-gate return (TRUE); 270*0Sstevel@tonic-gate 271*0Sstevel@tonic-gate 272*0Sstevel@tonic-gate } 273*0Sstevel@tonic-gate 274*0Sstevel@tonic-gate /* 275*0Sstevel@tonic-gate * XDR remote call results 276*0Sstevel@tonic-gate * written for XDR_DECODE direction only 277*0Sstevel@tonic-gate */ 278*0Sstevel@tonic-gate bool_t 279*0Sstevel@tonic-gate xdr_rmtcallres(xdrs, crp) 280*0Sstevel@tonic-gate register XDR *xdrs; 281*0Sstevel@tonic-gate register struct p_rmtcallres *crp; 282*0Sstevel@tonic-gate { 283*0Sstevel@tonic-gate bool_t dummy; 284*0Sstevel@tonic-gate 285*0Sstevel@tonic-gate trace1(TR_xdr_rmtcallres, 0); 286*0Sstevel@tonic-gate if (xdr_u_int(xdrs, (u_int *)&crp->port) && 287*0Sstevel@tonic-gate xdr_u_int(xdrs, &crp->res.res_len)) { 288*0Sstevel@tonic-gate 289*0Sstevel@tonic-gate dummy = (*(crp->xdr_res))(xdrs, crp->res.res_val); 290*0Sstevel@tonic-gate trace1(TR_xdr_rmtcallres, 1); 291*0Sstevel@tonic-gate return (dummy); 292*0Sstevel@tonic-gate } 293*0Sstevel@tonic-gate trace1(TR_xdr_rmtcallres, 1); 294*0Sstevel@tonic-gate return (FALSE); 295*0Sstevel@tonic-gate } 296