1 /* $NetBSD: rpc_callmsg.c,v 1.12 1999/01/20 11:37:38 lukem Exp $ */ 2 3 /* 4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 5 * unrestricted use provided that this legend is included on all tape 6 * media and as a part of the software program in whole or part. Users 7 * may copy or modify Sun RPC without charge, but are not authorized 8 * to license or distribute it to anyone else except as part of a product or 9 * program developed by the user. 10 * 11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 14 * 15 * Sun RPC is provided with no support and without any obligation on the 16 * part of Sun Microsystems, Inc. to assist in its use, correction, 17 * modification or enhancement. 18 * 19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 21 * OR ANY PART THEREOF. 22 * 23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 24 * or profits or other special, indirect and consequential damages, even if 25 * Sun has been advised of the possibility of such damages. 26 * 27 * Sun Microsystems, Inc. 28 * 2550 Garcia Avenue 29 * Mountain View, California 94043 30 */ 31 32 #include <sys/cdefs.h> 33 #if defined(LIBC_SCCS) && !defined(lint) 34 #if 0 35 static char *sccsid = "@(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro"; 36 static char *sccsid = "@(#)rpc_callmsg.c 2.1 88/07/29 4.0 RPCSRC"; 37 #else 38 __RCSID("$NetBSD: rpc_callmsg.c,v 1.12 1999/01/20 11:37:38 lukem Exp $"); 39 #endif 40 #endif 41 42 /* 43 * rpc_callmsg.c 44 * 45 * Copyright (C) 1984, Sun Microsystems, Inc. 46 * 47 */ 48 49 #include "namespace.h" 50 51 #include <sys/param.h> 52 53 #include <stdlib.h> 54 #include <string.h> 55 56 #include <rpc/rpc.h> 57 58 #ifdef __weak_alias 59 __weak_alias(xdr_callmsg,_xdr_callmsg); 60 #endif 61 62 /* 63 * XDR a call message 64 */ 65 bool_t 66 xdr_callmsg(xdrs, cmsg) 67 XDR *xdrs; 68 struct rpc_msg *cmsg; 69 { 70 int32_t *buf; 71 struct opaque_auth *oa; 72 73 if (xdrs->x_op == XDR_ENCODE) { 74 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) { 75 return (FALSE); 76 } 77 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) { 78 return (FALSE); 79 } 80 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT 81 + RNDUP(cmsg->rm_call.cb_cred.oa_length) 82 + 2 * BYTES_PER_XDR_UNIT 83 + RNDUP(cmsg->rm_call.cb_verf.oa_length)); 84 if (buf != NULL) { 85 IXDR_PUT_LONG(buf, cmsg->rm_xid); 86 IXDR_PUT_ENUM(buf, cmsg->rm_direction); 87 if (cmsg->rm_direction != CALL) { 88 return (FALSE); 89 } 90 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_rpcvers); 91 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 92 return (FALSE); 93 } 94 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_prog); 95 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_vers); 96 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_proc); 97 oa = &cmsg->rm_call.cb_cred; 98 IXDR_PUT_ENUM(buf, oa->oa_flavor); 99 IXDR_PUT_LONG(buf, oa->oa_length); 100 if (oa->oa_length) { 101 memmove(buf, oa->oa_base, oa->oa_length); 102 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 103 } 104 oa = &cmsg->rm_call.cb_verf; 105 IXDR_PUT_ENUM(buf, oa->oa_flavor); 106 IXDR_PUT_LONG(buf, oa->oa_length); 107 if (oa->oa_length) { 108 memmove(buf, oa->oa_base, oa->oa_length); 109 /* no real need.... 110 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 111 */ 112 } 113 return (TRUE); 114 } 115 } 116 if (xdrs->x_op == XDR_DECODE) { 117 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT); 118 if (buf != NULL) { 119 cmsg->rm_xid = (u_int32_t)IXDR_GET_LONG(buf); 120 cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); 121 if (cmsg->rm_direction != CALL) { 122 return (FALSE); 123 } 124 cmsg->rm_call.cb_rpcvers = 125 (u_int32_t)IXDR_GET_LONG(buf); 126 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 127 return (FALSE); 128 } 129 cmsg->rm_call.cb_prog = 130 (u_int32_t)IXDR_GET_LONG(buf); 131 cmsg->rm_call.cb_vers = 132 (u_int32_t)IXDR_GET_LONG(buf); 133 cmsg->rm_call.cb_proc = 134 (u_int32_t)IXDR_GET_LONG(buf); 135 oa = &cmsg->rm_call.cb_cred; 136 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 137 oa->oa_length = (u_int)IXDR_GET_LONG(buf); 138 if (oa->oa_length) { 139 if (oa->oa_length > MAX_AUTH_BYTES) { 140 return (FALSE); 141 } 142 if (oa->oa_base == NULL) { 143 oa->oa_base = (caddr_t) 144 mem_alloc(oa->oa_length); 145 if (oa->oa_base == NULL) 146 return (FALSE); 147 } 148 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 149 if (buf == NULL) { 150 if (xdr_opaque(xdrs, oa->oa_base, 151 oa->oa_length) == FALSE) { 152 return (FALSE); 153 } 154 } else { 155 memmove(oa->oa_base, buf, 156 oa->oa_length); 157 /* no real need.... 158 buf += RNDUP(oa->oa_length) / 159 sizeof (int32_t); 160 */ 161 } 162 } 163 oa = &cmsg->rm_call.cb_verf; 164 buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT); 165 if (buf == NULL) { 166 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE || 167 xdr_u_int(xdrs, &oa->oa_length) == FALSE) { 168 return (FALSE); 169 } 170 } else { 171 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 172 oa->oa_length = (u_int)IXDR_GET_LONG(buf); 173 } 174 if (oa->oa_length) { 175 if (oa->oa_length > MAX_AUTH_BYTES) { 176 return (FALSE); 177 } 178 if (oa->oa_base == NULL) { 179 oa->oa_base = (caddr_t) 180 mem_alloc(oa->oa_length); 181 if (oa->oa_base == NULL) 182 return (FALSE); 183 } 184 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 185 if (buf == NULL) { 186 if (xdr_opaque(xdrs, oa->oa_base, 187 oa->oa_length) == FALSE) { 188 return (FALSE); 189 } 190 } else { 191 memmove(oa->oa_base, buf, 192 oa->oa_length); 193 /* no real need... 194 buf += RNDUP(oa->oa_length) / 195 sizeof (int32_t); 196 */ 197 } 198 } 199 return (TRUE); 200 } 201 } 202 if ( 203 xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) && 204 xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) && 205 (cmsg->rm_direction == CALL) && 206 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) && 207 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) && 208 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) && 209 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)) && 210 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_proc)) && 211 xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) ) 212 return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf))); 213 return (FALSE); 214 } 215