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 #if defined(LIBC_SCCS) && !defined(lint) 33 static char *sccsid2 = "@(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro"; 34 static char *sccsid = "@(#)rpc_callmsg.c 2.1 88/07/29 4.0 RPCSRC"; 35 #endif 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 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 enum msg_type *prm_direction; 63 int32_t *buf; 64 struct opaque_auth *oa; 65 66 assert(xdrs != NULL); 67 assert(cmsg != NULL); 68 69 if (xdrs->x_op == XDR_ENCODE) { 70 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) { 71 return (FALSE); 72 } 73 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) { 74 return (FALSE); 75 } 76 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT 77 + RNDUP(cmsg->rm_call.cb_cred.oa_length) 78 + 2 * BYTES_PER_XDR_UNIT 79 + RNDUP(cmsg->rm_call.cb_verf.oa_length)); 80 if (buf != NULL) { 81 IXDR_PUT_INT32(buf, cmsg->rm_xid); 82 IXDR_PUT_ENUM(buf, cmsg->rm_direction); 83 if (cmsg->rm_direction != CALL) { 84 return (FALSE); 85 } 86 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers); 87 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 88 return (FALSE); 89 } 90 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_prog); 91 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_vers); 92 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_proc); 93 oa = &cmsg->rm_call.cb_cred; 94 IXDR_PUT_ENUM(buf, oa->oa_flavor); 95 IXDR_PUT_INT32(buf, oa->oa_length); 96 if (oa->oa_length) { 97 memmove(buf, oa->oa_base, oa->oa_length); 98 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 99 } 100 oa = &cmsg->rm_call.cb_verf; 101 IXDR_PUT_ENUM(buf, oa->oa_flavor); 102 IXDR_PUT_INT32(buf, oa->oa_length); 103 if (oa->oa_length) { 104 memmove(buf, oa->oa_base, oa->oa_length); 105 /* no real need.... 106 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 107 */ 108 } 109 return (TRUE); 110 } 111 } 112 if (xdrs->x_op == XDR_DECODE) { 113 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT); 114 if (buf != NULL) { 115 cmsg->rm_xid = IXDR_GET_U_INT32(buf); 116 cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); 117 if (cmsg->rm_direction != CALL) { 118 return (FALSE); 119 } 120 cmsg->rm_call.cb_rpcvers = IXDR_GET_U_INT32(buf); 121 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 122 return (FALSE); 123 } 124 cmsg->rm_call.cb_prog = IXDR_GET_U_INT32(buf); 125 cmsg->rm_call.cb_vers = IXDR_GET_U_INT32(buf); 126 cmsg->rm_call.cb_proc = IXDR_GET_U_INT32(buf); 127 oa = &cmsg->rm_call.cb_cred; 128 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 129 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); 130 if (oa->oa_length) { 131 if (oa->oa_length > MAX_AUTH_BYTES) { 132 return (FALSE); 133 } 134 if (oa->oa_base == NULL) { 135 oa->oa_base = (caddr_t) 136 mem_alloc(oa->oa_length); 137 if (oa->oa_base == NULL) 138 return (FALSE); 139 } 140 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 141 if (buf == NULL) { 142 if (xdr_opaque(xdrs, oa->oa_base, 143 oa->oa_length) == FALSE) { 144 return (FALSE); 145 } 146 } else { 147 memmove(oa->oa_base, buf, 148 oa->oa_length); 149 /* no real need.... 150 buf += RNDUP(oa->oa_length) / 151 sizeof (int32_t); 152 */ 153 } 154 } 155 oa = &cmsg->rm_call.cb_verf; 156 buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT); 157 if (buf == NULL) { 158 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE || 159 xdr_u_int(xdrs, &oa->oa_length) == FALSE) { 160 return (FALSE); 161 } 162 } else { 163 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 164 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); 165 } 166 if (oa->oa_length) { 167 if (oa->oa_length > MAX_AUTH_BYTES) { 168 return (FALSE); 169 } 170 if (oa->oa_base == NULL) { 171 oa->oa_base = (caddr_t) 172 mem_alloc(oa->oa_length); 173 if (oa->oa_base == NULL) 174 return (FALSE); 175 } 176 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 177 if (buf == NULL) { 178 if (xdr_opaque(xdrs, oa->oa_base, 179 oa->oa_length) == FALSE) { 180 return (FALSE); 181 } 182 } else { 183 memmove(oa->oa_base, buf, 184 oa->oa_length); 185 /* no real need... 186 buf += RNDUP(oa->oa_length) / 187 sizeof (int32_t); 188 */ 189 } 190 } 191 return (TRUE); 192 } 193 } 194 prm_direction = &cmsg->rm_direction; 195 if ( 196 xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) && 197 xdr_enum(xdrs, (enum_t *) prm_direction) && 198 (cmsg->rm_direction == CALL) && 199 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) && 200 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) && 201 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) && 202 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)) && 203 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_proc)) && 204 xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) ) 205 return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf))); 206 return (FALSE); 207 } 208