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 30 #if defined(LIBC_SCCS) && !defined(lint) 31 /*static char *sccsid = "from: @(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro";*/ 32 /*static char *sccsid = "from: @(#)rpc_callmsg.c 2.1 88/07/29 4.0 RPCSRC";*/ 33 static char *rcsid = "$FreeBSD: src/lib/libc/rpc/rpc_callmsg.c,v 1.9 1999/08/28 00:00:45 peter Exp $"; 34 #endif 35 36 /* 37 * rpc_callmsg.c 38 * 39 * Copyright (C) 1984, Sun Microsystems, Inc. 40 * 41 */ 42 43 #include <sys/param.h> 44 #include <stdlib.h> 45 #include <string.h> 46 #include <rpc/rpc.h> 47 48 /* 49 * XDR a call message 50 */ 51 bool_t 52 xdr_callmsg(xdrs, cmsg) 53 register XDR *xdrs; 54 register struct rpc_msg *cmsg; 55 { 56 register int32_t *buf; 57 register struct opaque_auth *oa; 58 59 if (xdrs->x_op == XDR_ENCODE) { 60 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) { 61 return (FALSE); 62 } 63 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) { 64 return (FALSE); 65 } 66 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT 67 + RNDUP(cmsg->rm_call.cb_cred.oa_length) 68 + 2 * BYTES_PER_XDR_UNIT 69 + RNDUP(cmsg->rm_call.cb_verf.oa_length)); 70 if (buf != NULL) { 71 IXDR_PUT_LONG(buf, cmsg->rm_xid); 72 IXDR_PUT_ENUM(buf, cmsg->rm_direction); 73 if (cmsg->rm_direction != CALL) { 74 return (FALSE); 75 } 76 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_rpcvers); 77 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 78 return (FALSE); 79 } 80 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_prog); 81 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_vers); 82 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_proc); 83 oa = &cmsg->rm_call.cb_cred; 84 IXDR_PUT_ENUM(buf, oa->oa_flavor); 85 IXDR_PUT_LONG(buf, oa->oa_length); 86 if (oa->oa_length) { 87 memcpy((caddr_t)buf, oa->oa_base, oa->oa_length); 88 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 89 } 90 oa = &cmsg->rm_call.cb_verf; 91 IXDR_PUT_ENUM(buf, oa->oa_flavor); 92 IXDR_PUT_LONG(buf, oa->oa_length); 93 if (oa->oa_length) { 94 memcpy((caddr_t)buf, oa->oa_base, oa->oa_length); 95 /* no real need.... 96 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 97 */ 98 } 99 return (TRUE); 100 } 101 } 102 if (xdrs->x_op == XDR_DECODE) { 103 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT); 104 if (buf != NULL) { 105 cmsg->rm_xid = IXDR_GET_LONG(buf); 106 cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); 107 if (cmsg->rm_direction != CALL) { 108 return (FALSE); 109 } 110 cmsg->rm_call.cb_rpcvers = IXDR_GET_LONG(buf); 111 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 112 return (FALSE); 113 } 114 cmsg->rm_call.cb_prog = IXDR_GET_LONG(buf); 115 cmsg->rm_call.cb_vers = IXDR_GET_LONG(buf); 116 cmsg->rm_call.cb_proc = IXDR_GET_LONG(buf); 117 oa = &cmsg->rm_call.cb_cred; 118 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 119 oa->oa_length = IXDR_GET_LONG(buf); 120 if (oa->oa_length) { 121 if (oa->oa_length > MAX_AUTH_BYTES) { 122 return (FALSE); 123 } 124 if (oa->oa_base == NULL) { 125 oa->oa_base = (caddr_t) 126 mem_alloc(oa->oa_length); 127 } 128 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 129 if (buf == NULL) { 130 if (xdr_opaque(xdrs, oa->oa_base, 131 oa->oa_length) == FALSE) { 132 return (FALSE); 133 } 134 } else { 135 memcpy(oa->oa_base, (caddr_t)buf, 136 oa->oa_length); 137 /* no real need.... 138 buf += RNDUP(oa->oa_length) / 139 sizeof (int32_t); 140 */ 141 } 142 } 143 oa = &cmsg->rm_call.cb_verf; 144 buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT); 145 if (buf == NULL) { 146 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE || 147 xdr_u_int(xdrs, &oa->oa_length) == FALSE) { 148 return (FALSE); 149 } 150 } else { 151 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 152 oa->oa_length = IXDR_GET_LONG(buf); 153 } 154 if (oa->oa_length) { 155 if (oa->oa_length > MAX_AUTH_BYTES) { 156 return (FALSE); 157 } 158 if (oa->oa_base == NULL) { 159 oa->oa_base = (caddr_t) 160 mem_alloc(oa->oa_length); 161 } 162 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 163 if (buf == NULL) { 164 if (xdr_opaque(xdrs, oa->oa_base, 165 oa->oa_length) == FALSE) { 166 return (FALSE); 167 } 168 } else { 169 memcpy(oa->oa_base, (caddr_t)buf, 170 oa->oa_length); 171 /* no real need... 172 buf += RNDUP(oa->oa_length) / 173 sizeof (int32_t); 174 */ 175 } 176 } 177 return (TRUE); 178 } 179 } 180 if ( 181 xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) && 182 xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) && 183 (cmsg->rm_direction == CALL) && 184 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) && 185 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) && 186 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) && 187 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)) && 188 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_proc)) && 189 xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) ) 190 return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf))); 191 return (FALSE); 192 } 193 194