1 /* $NetBSD: rpc_callmsg.c,v 1.16 2000/07/14 08:40:42 fvdl 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 static char *sccsid = "@(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro"; 35 static char *sccsid = "@(#)rpc_callmsg.c 2.1 88/07/29 4.0 RPCSRC"; 36 static char *rcsid = "$FreeBSD$"; 37 #endif 38 39 /* 40 * rpc_callmsg.c 41 * 42 * Copyright (C) 1984, Sun Microsystems, Inc. 43 * 44 */ 45 46 #include "namespace.h" 47 #include <assert.h> 48 #include <stdlib.h> 49 #include <string.h> 50 51 #include <rpc/rpc.h> 52 #include "un-namespace.h" 53 54 /* 55 * XDR a call message 56 */ 57 bool_t 58 xdr_callmsg(xdrs, cmsg) 59 XDR *xdrs; 60 struct rpc_msg *cmsg; 61 { 62 int32_t *buf; 63 struct opaque_auth *oa; 64 65 assert(xdrs != NULL); 66 assert(cmsg != NULL); 67 68 if (xdrs->x_op == XDR_ENCODE) { 69 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) { 70 return (FALSE); 71 } 72 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) { 73 return (FALSE); 74 } 75 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT 76 + RNDUP(cmsg->rm_call.cb_cred.oa_length) 77 + 2 * BYTES_PER_XDR_UNIT 78 + RNDUP(cmsg->rm_call.cb_verf.oa_length)); 79 if (buf != NULL) { 80 IXDR_PUT_INT32(buf, cmsg->rm_xid); 81 IXDR_PUT_ENUM(buf, cmsg->rm_direction); 82 if (cmsg->rm_direction != CALL) { 83 return (FALSE); 84 } 85 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers); 86 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 87 return (FALSE); 88 } 89 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_prog); 90 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_vers); 91 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_proc); 92 oa = &cmsg->rm_call.cb_cred; 93 IXDR_PUT_ENUM(buf, oa->oa_flavor); 94 IXDR_PUT_INT32(buf, oa->oa_length); 95 if (oa->oa_length) { 96 memmove(buf, oa->oa_base, oa->oa_length); 97 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 98 } 99 oa = &cmsg->rm_call.cb_verf; 100 IXDR_PUT_ENUM(buf, oa->oa_flavor); 101 IXDR_PUT_INT32(buf, oa->oa_length); 102 if (oa->oa_length) { 103 memmove(buf, oa->oa_base, oa->oa_length); 104 /* no real need.... 105 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 106 */ 107 } 108 return (TRUE); 109 } 110 } 111 if (xdrs->x_op == XDR_DECODE) { 112 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT); 113 if (buf != NULL) { 114 cmsg->rm_xid = IXDR_GET_U_INT32(buf); 115 cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); 116 if (cmsg->rm_direction != CALL) { 117 return (FALSE); 118 } 119 cmsg->rm_call.cb_rpcvers = IXDR_GET_U_INT32(buf); 120 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 121 return (FALSE); 122 } 123 cmsg->rm_call.cb_prog = IXDR_GET_U_INT32(buf); 124 cmsg->rm_call.cb_vers = IXDR_GET_U_INT32(buf); 125 cmsg->rm_call.cb_proc = IXDR_GET_U_INT32(buf); 126 oa = &cmsg->rm_call.cb_cred; 127 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 128 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); 129 if (oa->oa_length) { 130 if (oa->oa_length > MAX_AUTH_BYTES) { 131 return (FALSE); 132 } 133 if (oa->oa_base == NULL) { 134 oa->oa_base = (caddr_t) 135 mem_alloc(oa->oa_length); 136 if (oa->oa_base == NULL) 137 return (FALSE); 138 } 139 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 140 if (buf == NULL) { 141 if (xdr_opaque(xdrs, oa->oa_base, 142 oa->oa_length) == FALSE) { 143 return (FALSE); 144 } 145 } else { 146 memmove(oa->oa_base, buf, 147 oa->oa_length); 148 /* no real need.... 149 buf += RNDUP(oa->oa_length) / 150 sizeof (int32_t); 151 */ 152 } 153 } 154 oa = &cmsg->rm_call.cb_verf; 155 buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT); 156 if (buf == NULL) { 157 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE || 158 xdr_u_int(xdrs, &oa->oa_length) == FALSE) { 159 return (FALSE); 160 } 161 } else { 162 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 163 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); 164 } 165 if (oa->oa_length) { 166 if (oa->oa_length > MAX_AUTH_BYTES) { 167 return (FALSE); 168 } 169 if (oa->oa_base == NULL) { 170 oa->oa_base = (caddr_t) 171 mem_alloc(oa->oa_length); 172 if (oa->oa_base == NULL) 173 return (FALSE); 174 } 175 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 176 if (buf == NULL) { 177 if (xdr_opaque(xdrs, oa->oa_base, 178 oa->oa_length) == FALSE) { 179 return (FALSE); 180 } 181 } else { 182 memmove(oa->oa_base, buf, 183 oa->oa_length); 184 /* no real need... 185 buf += RNDUP(oa->oa_length) / 186 sizeof (int32_t); 187 */ 188 } 189 } 190 return (TRUE); 191 } 192 } 193 if ( 194 xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) && 195 xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) && 196 (cmsg->rm_direction == CALL) && 197 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) && 198 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) && 199 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) && 200 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)) && 201 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_proc)) && 202 xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) ) 203 return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf))); 204 return (FALSE); 205 } 206