rpc_callmsg.c revision 1.18.24.1
1 /* $NetBSD: rpc_callmsg.c,v 1.18.24.1 2013/03/14 22:03:13 riz 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 1.18.24.1 2013/03/14 22:03:13 riz 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(xdrs, cmsg) 70 XDR *xdrs; 71 struct rpc_msg *cmsg; 72 { 73 int32_t *buf; 74 struct opaque_auth *oa; 75 76 _DIAGASSERT(xdrs != NULL); 77 _DIAGASSERT(cmsg != NULL); 78 79 if (xdrs->x_op == XDR_ENCODE) { 80 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) { 81 return (FALSE); 82 } 83 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) { 84 return (FALSE); 85 } 86 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT 87 + RNDUP(cmsg->rm_call.cb_cred.oa_length) 88 + 2 * BYTES_PER_XDR_UNIT 89 + RNDUP(cmsg->rm_call.cb_verf.oa_length)); 90 if (buf != NULL) { 91 IXDR_PUT_INT32(buf, cmsg->rm_xid); 92 IXDR_PUT_ENUM(buf, cmsg->rm_direction); 93 if (cmsg->rm_direction != CALL) { 94 return (FALSE); 95 } 96 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers); 97 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 98 return (FALSE); 99 } 100 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_prog); 101 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_vers); 102 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_proc); 103 oa = &cmsg->rm_call.cb_cred; 104 IXDR_PUT_ENUM(buf, oa->oa_flavor); 105 IXDR_PUT_INT32(buf, oa->oa_length); 106 if (oa->oa_length) { 107 memmove(buf, oa->oa_base, oa->oa_length); 108 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 109 } 110 oa = &cmsg->rm_call.cb_verf; 111 IXDR_PUT_ENUM(buf, oa->oa_flavor); 112 IXDR_PUT_INT32(buf, oa->oa_length); 113 if (oa->oa_length) { 114 memmove(buf, oa->oa_base, oa->oa_length); 115 /* no real need.... 116 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 117 */ 118 } 119 return (TRUE); 120 } 121 } 122 if (xdrs->x_op == XDR_DECODE) { 123 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT); 124 if (buf != NULL) { 125 cmsg->rm_xid = IXDR_GET_U_INT32(buf); 126 cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); 127 if (cmsg->rm_direction != CALL) { 128 return (FALSE); 129 } 130 cmsg->rm_call.cb_rpcvers = IXDR_GET_U_INT32(buf); 131 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 132 return (FALSE); 133 } 134 cmsg->rm_call.cb_prog = IXDR_GET_U_INT32(buf); 135 cmsg->rm_call.cb_vers = IXDR_GET_U_INT32(buf); 136 cmsg->rm_call.cb_proc = IXDR_GET_U_INT32(buf); 137 oa = &cmsg->rm_call.cb_cred; 138 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 139 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); 140 if (oa->oa_length) { 141 if (oa->oa_length > MAX_AUTH_BYTES) { 142 return (FALSE); 143 } 144 if (oa->oa_base == NULL) { 145 oa->oa_base = mem_alloc(oa->oa_length); 146 if (oa->oa_base == NULL) 147 return (FALSE); 148 } 149 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 150 if (buf == NULL) { 151 if (xdr_opaque(xdrs, oa->oa_base, 152 oa->oa_length) == FALSE) { 153 return (FALSE); 154 } 155 } else { 156 memmove(oa->oa_base, buf, 157 oa->oa_length); 158 /* no real need.... 159 buf += RNDUP(oa->oa_length) / 160 sizeof (int32_t); 161 */ 162 } 163 } 164 oa = &cmsg->rm_call.cb_verf; 165 buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT); 166 if (buf == NULL) { 167 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE || 168 xdr_u_int(xdrs, &oa->oa_length) == FALSE) { 169 return (FALSE); 170 } 171 } else { 172 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 173 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); 174 } 175 if (oa->oa_length) { 176 if (oa->oa_length > MAX_AUTH_BYTES) { 177 return (FALSE); 178 } 179 if (oa->oa_base == NULL) { 180 oa->oa_base = 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 *)(void *)&(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
Indexes created Tue Sep 30 20:09:53 GMT 2025