rpc_callmsg.c revision 1.19
1 /* $NetBSD: rpc_callmsg.c,v 1.19 2012/03/20 17:14:50 matt 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 #include <sys/cdefs.h> 33 #if defined(LIBC_SCCS) && !defined(lint) 34 #if 0 35 static char *sccsid = "@(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro"; 36 static char *sccsid = "@(#)rpc_callmsg.c 2.1 88/07/29 4.0 RPCSRC"; 37 #else 38 __RCSID("$NetBSD: rpc_callmsg.c,v 1.19 2012/03/20 17:14:50 matt Exp $"); 39 #endif 40 #endif 41 42 /* 43 * rpc_callmsg.c 44 * 45 * Copyright (C) 1984, Sun Microsystems, Inc. 46 * 47 */ 48 49 #include "namespace.h" 50 51 #include <sys/param.h> 52 53 #include <assert.h> 54 #include <stdlib.h> 55 #include <string.h> 56 57 #include <rpc/rpc.h> 58 59 #ifdef __weak_alias 60 __weak_alias(xdr_callmsg,_xdr_callmsg) 61 #endif 62 63 /* 64 * XDR a call message 65 */ 66 bool_t 67 xdr_callmsg(XDR *xdrs, struct rpc_msg *cmsg) 68 { 69 int32_t *buf; 70 struct opaque_auth *oa; 71 72 _DIAGASSERT(xdrs != NULL); 73 _DIAGASSERT(cmsg != NULL); 74 75 if (xdrs->x_op == XDR_ENCODE) { 76 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) { 77 return (FALSE); 78 } 79 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) { 80 return (FALSE); 81 } 82 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT 83 + RNDUP(cmsg->rm_call.cb_cred.oa_length) 84 + 2 * BYTES_PER_XDR_UNIT 85 + RNDUP(cmsg->rm_call.cb_verf.oa_length)); 86 if (buf != NULL) { 87 IXDR_PUT_INT32(buf, cmsg->rm_xid); 88 IXDR_PUT_ENUM(buf, cmsg->rm_direction); 89 if (cmsg->rm_direction != CALL) { 90 return (FALSE); 91 } 92 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers); 93 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 94 return (FALSE); 95 } 96 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_prog); 97 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_vers); 98 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_proc); 99 oa = &cmsg->rm_call.cb_cred; 100 IXDR_PUT_ENUM(buf, oa->oa_flavor); 101 IXDR_PUT_INT32(buf, oa->oa_length); 102 if (oa->oa_length) { 103 memmove(buf, oa->oa_base, oa->oa_length); 104 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 105 } 106 oa = &cmsg->rm_call.cb_verf; 107 IXDR_PUT_ENUM(buf, oa->oa_flavor); 108 IXDR_PUT_INT32(buf, oa->oa_length); 109 if (oa->oa_length) { 110 memmove(buf, oa->oa_base, oa->oa_length); 111 /* no real need.... 112 buf += RNDUP(oa->oa_length) / sizeof (int32_t); 113 */ 114 } 115 return (TRUE); 116 } 117 } 118 if (xdrs->x_op == XDR_DECODE) { 119 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT); 120 if (buf != NULL) { 121 cmsg->rm_xid = IXDR_GET_U_INT32(buf); 122 cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); 123 if (cmsg->rm_direction != CALL) { 124 return (FALSE); 125 } 126 cmsg->rm_call.cb_rpcvers = IXDR_GET_U_INT32(buf); 127 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { 128 return (FALSE); 129 } 130 cmsg->rm_call.cb_prog = IXDR_GET_U_INT32(buf); 131 cmsg->rm_call.cb_vers = IXDR_GET_U_INT32(buf); 132 cmsg->rm_call.cb_proc = IXDR_GET_U_INT32(buf); 133 oa = &cmsg->rm_call.cb_cred; 134 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 135 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); 136 if (oa->oa_length) { 137 if (oa->oa_length > MAX_AUTH_BYTES) { 138 return (FALSE); 139 } 140 if (oa->oa_base == NULL) { 141 oa->oa_base = mem_alloc(oa->oa_length); 142 if (oa->oa_base == NULL) 143 return (FALSE); 144 } 145 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 146 if (buf == NULL) { 147 if (xdr_opaque(xdrs, oa->oa_base, 148 oa->oa_length) == FALSE) { 149 return (FALSE); 150 } 151 } else { 152 memmove(oa->oa_base, buf, 153 oa->oa_length); 154 /* no real need.... 155 buf += RNDUP(oa->oa_length) / 156 sizeof (int32_t); 157 */ 158 } 159 } 160 oa = &cmsg->rm_call.cb_verf; 161 buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT); 162 if (buf == NULL) { 163 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE || 164 xdr_u_int(xdrs, &oa->oa_length) == FALSE) { 165 return (FALSE); 166 } 167 } else { 168 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); 169 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); 170 } 171 if (oa->oa_length) { 172 if (oa->oa_length > MAX_AUTH_BYTES) { 173 return (FALSE); 174 } 175 if (oa->oa_base == NULL) { 176 oa->oa_base = mem_alloc(oa->oa_length); 177 if (oa->oa_base == NULL) 178 return (FALSE); 179 } 180 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); 181 if (buf == NULL) { 182 if (xdr_opaque(xdrs, oa->oa_base, 183 oa->oa_length) == FALSE) { 184 return (FALSE); 185 } 186 } else { 187 memmove(oa->oa_base, buf, 188 oa->oa_length); 189 /* no real need... 190 buf += RNDUP(oa->oa_length) / 191 sizeof (int32_t); 192 */ 193 } 194 } 195 return (TRUE); 196 } 197 } 198 if ( 199 xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) && 200 xdr_enum(xdrs, (enum_t *)(void *)&(cmsg->rm_direction)) && 201 (cmsg->rm_direction == CALL) && 202 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) && 203 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) && 204 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) && 205 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)) && 206 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_proc)) && 207 xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) ) 208 return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf))); 209 return (FALSE); 210 } 211
Indexes created Thu Sep 25 02:09:54 GMT 2025