1 /* $NetBSD: rpc_callmsg.c,v 1.20 2013/03/11 20:19:29 tron Exp $ */ 2 3 /* 4 * Copyright (c) 2010, Oracle America, Inc. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above 13 * copyright notice, this list of conditions and the following 14 * disclaimer in the documentation and/or other materials 15 * provided with the distribution. 16 * * Neither the name of the "Oracle America, Inc." nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 #if defined(LIBC_SCCS) && !defined(lint) 36 #if 0 37 static char *sccsid = "@(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro"; 38 static char *sccsid = "@(#)rpc_callmsg.c 2.1 88/07/29 4.0 RPCSRC"; 39 #else 40 __RCSID("$NetBSD: rpc_callmsg.c,v 1.20 2013/03/11 20:19:29 tron Exp $"); 41 #endif 42 #endif 43 44 /* 45 * rpc_callmsg.c 46 * 47 * Copyright (C) 1984, Sun Microsystems, Inc. 48 * 49 */ 50 51 #include "namespace.h" 52 53 #include <sys/param.h> 54 55 #include <assert.h> 56 #include <stdlib.h> 57 #include <string.h> 58 59 #include <rpc/rpc.h> 60 61 #ifdef __weak_alias 62 __weak_alias(xdr_callmsg,_xdr_callmsg) 63 #endif 64 65 /* 66 * XDR a call message 67 */ 68 bool_t 69 xdr_callmsg(XDR *xdrs, struct rpc_msg *cmsg) 70 { 71 int32_t *buf; 72 struct opaque_auth *oa; 73 74 _DIAGASSERT(xdrs != NULL); 75 _DIAGASSERT(cmsg != NULL); 76 77 if (xdrs->x_op == XDR_ENCODE) { 78 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) { 79 return (FALSE); 80 } 81 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) { 82 return (FALSE); 83 } 84 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT 85 + RNDUP(cmsg->rm_call.cb_cred.oa_length) 86 + 2 * BYTES_PER_XDR_UNIT 87 + RNDUP(cmsg->rm_call.cb_verf.oa_length)); 88 if (buf != NULL) { 89 IXDR_PUT_INT32(buf, cmsg->rm_xid); 90 IXDR_PUT_ENUM(buf, cmsg->rm_direction); 91 if (cmsg->rm_direction != CALL) { 92 return (FALSE); 93 } 94 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers); 95 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 96 return (FALSE); 97 } 98 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_prog); 99 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_vers); 100 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_proc); 101 oa = &cmsg->rm_call.cb_cred; 102 IXDR_PUT_ENUM(buf, oa->oa_flavor); 103 IXDR_PUT_INT32(buf, oa->oa_length); 104 if (oa->oa_length) { 105 memmove(buf, oa->oa_base, oa->oa_length); 106 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 107 } 108 oa = &cmsg->rm_call.cb_verf; 109 IXDR_PUT_ENUM(buf, oa->oa_flavor); 110 IXDR_PUT_INT32(buf, oa->oa_length); 111 if (oa->oa_length) { 112 memmove(buf, oa->oa_base, oa->oa_length); 113 /* no real need.... 114 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 115 */ 116 } 117 return (TRUE); 118 } 119 } 120 if (xdrs->x_op == XDR_DECODE) { 121 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT); 122 if (buf != NULL) { 123 cmsg->rm_xid = IXDR_GET_U_INT32(buf); 124 cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); 125 if (cmsg->rm_direction != CALL) { 126 return (FALSE); 127 } 128 cmsg->rm_call.cb_rpcvers = IXDR_GET_U_INT32(buf); 129 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 130 return (FALSE); 131 } 132 cmsg->rm_call.cb_prog = IXDR_GET_U_INT32(buf); 133 cmsg->rm_call.cb_vers = IXDR_GET_U_INT32(buf); 134 cmsg->rm_call.cb_proc = IXDR_GET_U_INT32(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_U_INT32(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 = mem_alloc(oa->oa_length); 144 if (oa->oa_base == NULL) 145 return (FALSE); 146 } 147 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 148 if (buf == NULL) { 149 if (xdr_opaque(xdrs, oa->oa_base, 150 oa->oa_length) == FALSE) { 151 return (FALSE); 152 } 153 } else { 154 memmove(oa->oa_base, buf, 155 oa->oa_length); 156 /* no real need.... 157 buf += RNDUP(oa->oa_length) / 158 sizeof (int32_t); 159 */ 160 } 161 } 162 oa = &cmsg->rm_call.cb_verf; 163 buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT); 164 if (buf == NULL) { 165 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE || 166 xdr_u_int(xdrs, &oa->oa_length) == FALSE) { 167 return (FALSE); 168 } 169 } else { 170 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 171 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); 172 } 173 if (oa->oa_length) { 174 if (oa->oa_length > MAX_AUTH_BYTES) { 175 return (FALSE); 176 } 177 if (oa->oa_base == NULL) { 178 oa->oa_base = mem_alloc(oa->oa_length); 179 if (oa->oa_base == NULL) 180 return (FALSE); 181 } 182 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 183 if (buf == NULL) { 184 if (xdr_opaque(xdrs, oa->oa_base, 185 oa->oa_length) == FALSE) { 186 return (FALSE); 187 } 188 } else { 189 memmove(oa->oa_base, buf, 190 oa->oa_length); 191 /* no real need... 192 buf += RNDUP(oa->oa_length) / 193 sizeof (int32_t); 194 */ 195 } 196 } 197 return (TRUE); 198 } 199 } 200 if ( 201 xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) && 202 xdr_enum(xdrs, (enum_t *)(void *)&(cmsg->rm_direction)) && 203 (cmsg->rm_direction == CALL) && 204 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) && 205 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) && 206 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) && 207 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)) && 208 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_proc)) && 209 xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) ) 210 return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf))); 211 return (FALSE); 212 } 213
Indexes created Sat Sep 20 22:09:52 GMT 2025