1 /* 2 * Copyright (c) 2009, Sun Microsystems, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * - Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * - Redistributions in binary form must reproduce the above copyright notice, 10 * this list of conditions and the following disclaimer in the documentation 11 * and/or other materials provided with the distribution. 12 * - Neither the name of Sun Microsystems, Inc. nor the names of its 13 * contributors may be used to endorse or promote products derived 14 * from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * rpc_callmsg.c 31 * 32 * Copyright (C) 1984, Sun Microsystems, Inc. 33 * 34 */ 35 36 #include <wintirpc.h> 37 #include <assert.h> 38 #include <stdlib.h> 39 #include <string.h> 40 41 #include <rpc/rpc.h> 42 #include <rpc/xdr.h> 43 44 //#include <sys/select.h> 45 46 /* 47 * XDR a call message 48 */ 49 bool_t 50 xdr_callmsg(xdrs, cmsg) 51 XDR *xdrs; 52 struct rpc_msg *cmsg; 53 { 54 int32_t *buf; 55 struct opaque_auth *oa; 56 57 assert(xdrs != NULL); 58 assert(cmsg != NULL); 59 60 if (xdrs->x_op == XDR_ENCODE) { 61 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) { 62 return (FALSE); 63 } 64 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) { 65 return (FALSE); 66 } 67 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT 68 + RNDUP(cmsg->rm_call.cb_cred.oa_length) 69 + 2 * BYTES_PER_XDR_UNIT 70 + RNDUP(cmsg->rm_call.cb_verf.oa_length)); 71 if (buf != NULL) { 72 IXDR_PUT_INT32(buf, cmsg->rm_xid); 73 IXDR_PUT_ENUM(buf, cmsg->rm_direction); 74 if (cmsg->rm_direction != CALL) { 75 return (FALSE); 76 } 77 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers); 78 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 79 return (FALSE); 80 } 81 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_prog); 82 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_vers); 83 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_proc); 84 oa = &cmsg->rm_call.cb_cred; 85 IXDR_PUT_ENUM(buf, oa->oa_flavor); 86 IXDR_PUT_INT32(buf, oa->oa_length); 87 if (oa->oa_length) { 88 memmove(buf, oa->oa_base, oa->oa_length); 89 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 90 } 91 oa = &cmsg->rm_call.cb_verf; 92 IXDR_PUT_ENUM(buf, oa->oa_flavor); 93 IXDR_PUT_INT32(buf, oa->oa_length); 94 if (oa->oa_length) { 95 memmove(buf, oa->oa_base, oa->oa_length); 96 /* no real need.... 97 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 98 */ 99 } 100 return (TRUE); 101 } 102 } 103 if (xdrs->x_op == XDR_DECODE) { 104 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT); 105 if (buf != NULL) { 106 cmsg->rm_xid = IXDR_GET_U_INT32(buf); 107 cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); 108 if (cmsg->rm_direction != CALL) { 109 return (FALSE); 110 } 111 cmsg->rm_call.cb_rpcvers = IXDR_GET_U_INT32(buf); 112 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 113 return (FALSE); 114 } 115 cmsg->rm_call.cb_prog = IXDR_GET_U_INT32(buf); 116 cmsg->rm_call.cb_vers = IXDR_GET_U_INT32(buf); 117 cmsg->rm_call.cb_proc = IXDR_GET_U_INT32(buf); 118 oa = &cmsg->rm_call.cb_cred; 119 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 120 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); 121 if (oa->oa_length) { 122 if (oa->oa_length > MAX_AUTH_BYTES) { 123 return (FALSE); 124 } 125 if (oa->oa_base == NULL) { 126 oa->oa_base = (caddr_t) 127 mem_alloc(oa->oa_length); 128 if (oa->oa_base == NULL) 129 return (FALSE); 130 } 131 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 132 if (buf == NULL) { 133 if (xdr_opaque(xdrs, oa->oa_base, 134 oa->oa_length) == FALSE) { 135 return (FALSE); 136 } 137 } else { 138 memmove(oa->oa_base, buf, 139 oa->oa_length); 140 /* no real need.... 141 buf += RNDUP(oa->oa_length) / 142 sizeof (int32_t); 143 */ 144 } 145 } 146 oa = &cmsg->rm_call.cb_verf; 147 buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT); 148 if (buf == NULL) { 149 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE || 150 xdr_u_int(xdrs, &oa->oa_length) == FALSE) { 151 return (FALSE); 152 } 153 } else { 154 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 155 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); 156 } 157 if (oa->oa_length) { 158 if (oa->oa_length > MAX_AUTH_BYTES) { 159 return (FALSE); 160 } 161 if (oa->oa_base == NULL) { 162 oa->oa_base = (caddr_t) 163 mem_alloc(oa->oa_length); 164 if (oa->oa_base == NULL) 165 return (FALSE); 166 } 167 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 168 if (buf == NULL) { 169 if (xdr_opaque(xdrs, oa->oa_base, 170 oa->oa_length) == FALSE) { 171 return (FALSE); 172 } 173 } else { 174 memmove(oa->oa_base, buf, 175 oa->oa_length); 176 /* no real need... 177 buf += RNDUP(oa->oa_length) / 178 sizeof (int32_t); 179 */ 180 } 181 } 182 return (TRUE); 183 } 184 } 185 if ( 186 xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) && 187 xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) && 188 (cmsg->rm_direction == CALL) && 189 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) && 190 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) && 191 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) && 192 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)) && 193 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_proc)) && 194 xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) ) 195 return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf))); 196 return (FALSE); 197 } 198