1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 * 22 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 26 /* All Rights Reserved */ 27 /* 28 * Portions of this source code were derived from Berkeley 29 * 4.3 BSD under license from the Regents of the University of 30 * California. 31 */ 32 33 /* 34 * xdr.h, External Data Representation Serialization Routines. 35 * 36 */ 37 38 #ifndef _RPC_XDR_H 39 #define _RPC_XDR_H 40 41 #pragma ident "%Z%%M% %I% %E% SMI" 42 43 #include <sys/byteorder.h> /* For all ntoh* and hton*() kind of macros */ 44 #include <rpc/types.h> /* For all ntoh* and hton*() kind of macros */ 45 #ifndef _KERNEL 46 #include <stdio.h> /* defines FILE *, used in ANSI C function prototypes */ 47 #endif 48 #ifdef _KERNEL 49 #include <sys/stream.h> 50 #endif 51 52 #ifdef __cplusplus 53 extern "C" { 54 #endif 55 56 /* 57 * XDR provides a conventional way for converting between C data 58 * types and an external bit-string representation. Library supplied 59 * routines provide for the conversion on built-in C data types. These 60 * routines and utility routines defined here are used to help implement 61 * a type encode/decode routine for each user-defined type. 62 * 63 * Each data type provides a single procedure which takes two arguments: 64 * 65 * bool_t 66 * xdrproc(xdrs, argresp) 67 * XDR *xdrs; 68 * <type> *argresp; 69 * 70 * xdrs is an instance of a XDR handle, to which or from which the data 71 * type is to be converted. argresp is a pointer to the structure to be 72 * converted. The XDR handle contains an operation field which indicates 73 * which of the operations (ENCODE, DECODE * or FREE) is to be performed. 74 * 75 * XDR_DECODE may allocate space if the pointer argresp is null. This 76 * data can be freed with the XDR_FREE operation. 77 * 78 * We write only one procedure per data type to make it easy 79 * to keep the encode and decode procedures for a data type consistent. 80 * In many cases the same code performs all operations on a user defined type, 81 * because all the hard work is done in the component type routines. 82 * decode as a series of calls on the nested data types. 83 */ 84 85 /* 86 * Xdr operations. XDR_ENCODE causes the type to be encoded into the 87 * stream. XDR_DECODE causes the type to be extracted from the stream. 88 * XDR_FREE can be used to release the space allocated by an XDR_DECODE 89 * request. 90 */ 91 enum xdr_op { 92 XDR_ENCODE = 0, 93 XDR_DECODE = 1, 94 XDR_FREE = 2 95 }; 96 97 /* 98 * This is the number of bytes per unit of external data. 99 */ 100 #define BYTES_PER_XDR_UNIT (4) 101 #define RNDUP(x) ((((x) + BYTES_PER_XDR_UNIT - 1) / BYTES_PER_XDR_UNIT) \ 102 * BYTES_PER_XDR_UNIT) 103 104 /* 105 * The XDR handle. 106 * Contains operation which is being applied to the stream, 107 * an operations vector for the paticular implementation (e.g. see xdr_mem.c), 108 * and two private fields for the use of the particular impelementation. 109 * 110 * PSARC 2003/523 Contract Private Interface 111 * XDR 112 * Changes must be reviewed by Solaris File Sharing 113 * Changes must be communicated to contract-2003-523@sun.com 114 */ 115 typedef struct XDR { 116 enum xdr_op x_op; /* operation; fast additional param */ 117 struct xdr_ops *x_ops; 118 caddr_t x_public; /* users' data */ 119 caddr_t x_private; /* pointer to private data */ 120 caddr_t x_base; /* private used for position info */ 121 int x_handy; /* extra private word */ 122 } XDR; 123 124 /* 125 * PSARC 2003/523 Contract Private Interface 126 * xdr_ops 127 * Changes must be reviewed by Solaris File Sharing 128 * Changes must be communicated to contract-2003-523@sun.com 129 */ 130 struct xdr_ops { 131 #ifdef __STDC__ 132 #if !defined(_KERNEL) 133 bool_t (*x_getlong)(struct XDR *, long *); 134 /* get a long from underlying stream */ 135 bool_t (*x_putlong)(struct XDR *, long *); 136 /* put a long to " */ 137 #endif /* KERNEL */ 138 bool_t (*x_getbytes)(struct XDR *, caddr_t, int); 139 /* get some bytes from " */ 140 bool_t (*x_putbytes)(struct XDR *, caddr_t, int); 141 /* put some bytes to " */ 142 uint_t (*x_getpostn)(struct XDR *); 143 /* returns bytes off from beginning */ 144 bool_t (*x_setpostn)(struct XDR *, uint_t); 145 /* lets you reposition the stream */ 146 rpc_inline_t *(*x_inline)(struct XDR *, int); 147 /* buf quick ptr to buffered data */ 148 void (*x_destroy)(struct XDR *); 149 /* free privates of this xdr_stream */ 150 bool_t (*x_control)(struct XDR *, int, void *); 151 #if defined(_LP64) || defined(_KERNEL) 152 bool_t (*x_getint32)(struct XDR *, int32_t *); 153 /* get a int from underlying stream */ 154 bool_t (*x_putint32)(struct XDR *, int32_t *); 155 /* put an int to " */ 156 #endif /* _LP64 || _KERNEL */ 157 #else 158 #if !defined(_KERNEL) 159 bool_t (*x_getlong)(); /* get a long from underlying stream */ 160 bool_t (*x_putlong)(); /* put a long to " */ 161 #endif /* KERNEL */ 162 bool_t (*x_getbytes)(); /* get some bytes from " */ 163 bool_t (*x_putbytes)(); /* put some bytes to " */ 164 uint_t (*x_getpostn)(); /* returns bytes off from beginning */ 165 bool_t (*x_setpostn)(); /* lets you reposition the stream */ 166 rpc_inline_t *(*x_inline)(); 167 /* buf quick ptr to buffered data */ 168 void (*x_destroy)(); /* free privates of this xdr_stream */ 169 bool_t (*x_control)(); 170 #if defined(_LP64) || defined(_KERNEL) 171 bool_t (*x_getint32)(); 172 bool_t (*x_putint32)(); 173 #endif /* _LP64 || defined(_KERNEL) */ 174 #endif 175 }; 176 177 /* 178 * Operations defined on a XDR handle 179 * 180 * XDR *xdrs; 181 * long *longp; 182 * caddr_t addr; 183 * uint_t len; 184 * uint_t pos; 185 */ 186 #if !defined(_KERNEL) 187 #define XDR_GETLONG(xdrs, longp) \ 188 (*(xdrs)->x_ops->x_getlong)(xdrs, longp) 189 #define xdr_getlong(xdrs, longp) \ 190 (*(xdrs)->x_ops->x_getlong)(xdrs, longp) 191 192 #define XDR_PUTLONG(xdrs, longp) \ 193 (*(xdrs)->x_ops->x_putlong)(xdrs, longp) 194 #define xdr_putlong(xdrs, longp) \ 195 (*(xdrs)->x_ops->x_putlong)(xdrs, longp) 196 #endif /* KERNEL */ 197 198 199 #if !defined(_LP64) && !defined(_KERNEL) 200 201 /* 202 * For binary compatability on ILP32 we do not change the shape 203 * of the XDR structure and the GET/PUTINT32 functions just use 204 * the get/putlong vectors which operate on identically-sized 205 * units of data. 206 */ 207 208 #define XDR_GETINT32(xdrs, int32p) \ 209 (*(xdrs)->x_ops->x_getlong)(xdrs, (long *)int32p) 210 #define xdr_getint32(xdrs, int32p) \ 211 (*(xdrs)->x_ops->x_getlong)(xdrs, (long *)int32p) 212 213 #define XDR_PUTINT32(xdrs, int32p) \ 214 (*(xdrs)->x_ops->x_putlong)(xdrs, (long *)int32p) 215 #define xdr_putint32(xdrs, int32p) \ 216 (*(xdrs)->x_ops->x_putlong)(xdrs, (long *)int32p) 217 218 #else /* !_LP64 && !_KERNEL */ 219 220 #define XDR_GETINT32(xdrs, int32p) \ 221 (*(xdrs)->x_ops->x_getint32)(xdrs, int32p) 222 #define xdr_getint32(xdrs, int32p) \ 223 (*(xdrs)->x_ops->x_getint32)(xdrs, int32p) 224 225 #define XDR_PUTINT32(xdrs, int32p) \ 226 (*(xdrs)->x_ops->x_putint32)(xdrs, int32p) 227 #define xdr_putint32(xdrs, int32p) \ 228 (*(xdrs)->x_ops->x_putint32)(xdrs, int32p) 229 230 #endif /* !_LP64 && !_KERNEL */ 231 232 #define XDR_GETBYTES(xdrs, addr, len) \ 233 (*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len) 234 #define xdr_getbytes(xdrs, addr, len) \ 235 (*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len) 236 237 #define XDR_PUTBYTES(xdrs, addr, len) \ 238 (*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len) 239 #define xdr_putbytes(xdrs, addr, len) \ 240 (*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len) 241 242 #define XDR_GETPOS(xdrs) \ 243 (*(xdrs)->x_ops->x_getpostn)(xdrs) 244 #define xdr_getpos(xdrs) \ 245 (*(xdrs)->x_ops->x_getpostn)(xdrs) 246 247 #define XDR_SETPOS(xdrs, pos) \ 248 (*(xdrs)->x_ops->x_setpostn)(xdrs, pos) 249 #define xdr_setpos(xdrs, pos) \ 250 (*(xdrs)->x_ops->x_setpostn)(xdrs, pos) 251 252 #define XDR_INLINE(xdrs, len) \ 253 (*(xdrs)->x_ops->x_inline)(xdrs, len) 254 #define xdr_inline(xdrs, len) \ 255 (*(xdrs)->x_ops->x_inline)(xdrs, len) 256 257 #define XDR_DESTROY(xdrs) \ 258 (*(xdrs)->x_ops->x_destroy)(xdrs) 259 #define xdr_destroy(xdrs) \ 260 (*(xdrs)->x_ops->x_destroy)(xdrs) 261 262 #define XDR_CONTROL(xdrs, req, op) \ 263 (*(xdrs)->x_ops->x_control)(xdrs, req, op) 264 #define xdr_control(xdrs, req, op) \ 265 (*(xdrs)->x_ops->x_control)(xdrs, req, op) 266 267 /* 268 * Support struct for discriminated unions. 269 * You create an array of xdrdiscrim structures, terminated with 270 * a entry with a null procedure pointer. The xdr_union routine gets 271 * the discriminant value and then searches the array of structures 272 * for a matching value. If a match is found the associated xdr routine 273 * is called to handle that part of the union. If there is 274 * no match, then a default routine may be called. 275 * If there is no match and no default routine it is an error. 276 */ 277 278 279 /* 280 * A xdrproc_t exists for each data type which is to be encoded or decoded. 281 * 282 * The second argument to the xdrproc_t is a pointer to an opaque pointer. 283 * The opaque pointer generally points to a structure of the data type 284 * to be decoded. If this pointer is 0, then the type routines should 285 * allocate dynamic storage of the appropriate size and return it. 286 * bool_t (*xdrproc_t)(XDR *, void *); 287 */ 288 #ifdef __cplusplus 289 typedef bool_t (*xdrproc_t)(XDR *, void *); 290 #else 291 #ifdef __STDC__ 292 typedef bool_t (*xdrproc_t)(); /* For Backward compatibility */ 293 #else 294 typedef bool_t (*xdrproc_t)(); 295 #endif 296 #endif 297 298 #define NULL_xdrproc_t ((xdrproc_t)0) 299 300 #if defined(_LP64) || defined(_I32LPx) 301 #define xdr_rpcvers(xdrs, versp) xdr_u_int(xdrs, versp) 302 #define xdr_rpcprog(xdrs, progp) xdr_u_int(xdrs, progp) 303 #define xdr_rpcproc(xdrs, procp) xdr_u_int(xdrs, procp) 304 #define xdr_rpcprot(xdrs, protp) xdr_u_int(xdrs, protp) 305 #define xdr_rpcport(xdrs, portp) xdr_u_int(xdrs, portp) 306 #else 307 #define xdr_rpcvers(xdrs, versp) xdr_u_long(xdrs, versp) 308 #define xdr_rpcprog(xdrs, progp) xdr_u_long(xdrs, progp) 309 #define xdr_rpcproc(xdrs, procp) xdr_u_long(xdrs, procp) 310 #define xdr_rpcprot(xdrs, protp) xdr_u_long(xdrs, protp) 311 #define xdr_rpcport(xdrs, portp) xdr_u_long(xdrs, portp) 312 #endif 313 314 struct xdr_discrim { 315 int value; 316 xdrproc_t proc; 317 }; 318 319 /* 320 * In-line routines for fast encode/decode of primitve data types. 321 * Caveat emptor: these use single memory cycles to get the 322 * data from the underlying buffer, and will fail to operate 323 * properly if the data is not aligned. The standard way to use these 324 * is to say: 325 * if ((buf = XDR_INLINE(xdrs, count)) == NULL) 326 * return (FALSE); 327 * <<< macro calls >>> 328 * where ``count'' is the number of bytes of data occupied 329 * by the primitive data types. 330 * 331 * N.B. and frozen for all time: each data type here uses 4 bytes 332 * of external representation. 333 */ 334 335 #define IXDR_GET_INT32(buf) ((int32_t)ntohl((uint32_t)*(buf)++)) 336 #define IXDR_PUT_INT32(buf, v) (*(buf)++ = (int32_t)htonl((uint32_t)v)) 337 #define IXDR_GET_U_INT32(buf) ((uint32_t)IXDR_GET_INT32(buf)) 338 #define IXDR_PUT_U_INT32(buf, v) IXDR_PUT_INT32((buf), ((int32_t)(v))) 339 340 #if !defined(_KERNEL) && !defined(_LP64) 341 342 #define IXDR_GET_LONG(buf) ((long)ntohl((ulong_t)*(buf)++)) 343 #define IXDR_PUT_LONG(buf, v) (*(buf)++ = (long)htonl((ulong_t)v)) 344 #define IXDR_GET_U_LONG(buf) ((ulong_t)IXDR_GET_LONG(buf)) 345 #define IXDR_PUT_U_LONG(buf, v) IXDR_PUT_LONG((buf), ((long)(v))) 346 347 #define IXDR_GET_BOOL(buf) ((bool_t)IXDR_GET_LONG(buf)) 348 #define IXDR_GET_ENUM(buf, t) ((t)IXDR_GET_LONG(buf)) 349 #define IXDR_GET_SHORT(buf) ((short)IXDR_GET_LONG(buf)) 350 #define IXDR_GET_U_SHORT(buf) ((ushort_t)IXDR_GET_LONG(buf)) 351 352 #define IXDR_PUT_BOOL(buf, v) IXDR_PUT_LONG((buf), ((long)(v))) 353 #define IXDR_PUT_ENUM(buf, v) IXDR_PUT_LONG((buf), ((long)(v))) 354 #define IXDR_PUT_SHORT(buf, v) IXDR_PUT_LONG((buf), ((long)(v))) 355 #define IXDR_PUT_U_SHORT(buf, v) IXDR_PUT_LONG((buf), ((long)(v))) 356 357 #else 358 359 #define IXDR_GET_BOOL(buf) ((bool_t)IXDR_GET_INT32(buf)) 360 #define IXDR_GET_ENUM(buf, t) ((t)IXDR_GET_INT32(buf)) 361 #define IXDR_GET_SHORT(buf) ((short)IXDR_GET_INT32(buf)) 362 #define IXDR_GET_U_SHORT(buf) ((ushort_t)IXDR_GET_INT32(buf)) 363 364 #define IXDR_PUT_BOOL(buf, v) IXDR_PUT_INT32((buf), ((int)(v))) 365 #define IXDR_PUT_ENUM(buf, v) IXDR_PUT_INT32((buf), ((int)(v))) 366 #define IXDR_PUT_SHORT(buf, v) IXDR_PUT_INT32((buf), ((int)(v))) 367 #define IXDR_PUT_U_SHORT(buf, v) IXDR_PUT_INT32((buf), ((int)(v))) 368 369 #endif 370 371 #ifndef _LITTLE_ENDIAN 372 #define IXDR_GET_HYPER(buf, v) { \ 373 *((int32_t *)(&v)) = ntohl(*(uint32_t *)buf++); \ 374 *((int32_t *)(((char *)&v) + BYTES_PER_XDR_UNIT)) \ 375 = ntohl(*(uint32_t *)buf++); \ 376 } 377 #define IXDR_PUT_HYPER(buf, v) { \ 378 *(buf)++ = (int32_t)htonl(*(uint32_t *) \ 379 ((char *)&v)); \ 380 *(buf)++ = \ 381 (int32_t)htonl(*(uint32_t *)(((char *)&v) \ 382 + BYTES_PER_XDR_UNIT)); \ 383 } 384 #else 385 386 #define IXDR_GET_HYPER(buf, v) { \ 387 *((int32_t *)(((char *)&v) + \ 388 BYTES_PER_XDR_UNIT)) \ 389 = ntohl(*(uint32_t *)buf++); \ 390 *((int32_t *)(&v)) = \ 391 ntohl(*(uint32_t *)buf++); \ 392 } 393 394 #define IXDR_PUT_HYPER(buf, v) { \ 395 *(buf)++ = \ 396 (int32_t)htonl(*(uint32_t *)(((char *)&v) + \ 397 BYTES_PER_XDR_UNIT)); \ 398 *(buf)++ = \ 399 (int32_t)htonl(*(uint32_t *)((char *)&v)); \ 400 } 401 #endif 402 #define IXDR_GET_U_HYPER(buf, v) IXDR_GET_HYPER(buf, v) 403 #define IXDR_PUT_U_HYPER(buf, v) IXDR_PUT_HYPER(buf, v) 404 405 406 /* 407 * These are the "generic" xdr routines. 408 */ 409 #ifdef __STDC__ 410 extern bool_t xdr_void(void); 411 extern bool_t xdr_int(XDR *, int *); 412 extern bool_t xdr_u_int(XDR *, uint_t *); 413 extern bool_t xdr_long(XDR *, long *); 414 extern bool_t xdr_u_long(XDR *, ulong_t *); 415 extern bool_t xdr_short(XDR *, short *); 416 extern bool_t xdr_u_short(XDR *, ushort_t *); 417 extern bool_t xdr_bool(XDR *, bool_t *); 418 extern bool_t xdr_enum(XDR *, enum_t *); 419 extern bool_t xdr_array(XDR *, caddr_t *, uint_t *, const uint_t, 420 const uint_t, const xdrproc_t); 421 extern bool_t xdr_bytes(XDR *, char **, uint_t *, const uint_t); 422 extern bool_t xdr_opaque(XDR *, caddr_t, const uint_t); 423 extern bool_t xdr_string(XDR *, char **, const uint_t); 424 extern bool_t xdr_union(XDR *, enum_t *, char *, 425 const struct xdr_discrim *, const xdrproc_t); 426 extern unsigned int xdr_sizeof(xdrproc_t, void *); 427 428 extern bool_t xdr_hyper(XDR *, longlong_t *); 429 extern bool_t xdr_longlong_t(XDR *, longlong_t *); 430 extern bool_t xdr_u_hyper(XDR *, u_longlong_t *); 431 extern bool_t xdr_u_longlong_t(XDR *, u_longlong_t *); 432 433 extern bool_t xdr_char(XDR *, char *); 434 extern bool_t xdr_wrapstring(XDR *, char **); 435 extern bool_t xdr_reference(XDR *, caddr_t *, uint_t, const xdrproc_t); 436 extern bool_t xdr_pointer(XDR *, char **, uint_t, const xdrproc_t); 437 extern void xdr_free(xdrproc_t, char *); 438 extern bool_t xdr_time_t(XDR *, time_t *); 439 440 extern bool_t xdr_int8_t(XDR *, int8_t *); 441 extern bool_t xdr_uint8_t(XDR *, uint8_t *); 442 extern bool_t xdr_int16_t(XDR *, int16_t *); 443 extern bool_t xdr_uint16_t(XDR *, uint16_t *); 444 extern bool_t xdr_int32_t(XDR *, int32_t *); 445 extern bool_t xdr_uint32_t(XDR *, uint32_t *); 446 #if defined(_INT64_TYPE) 447 extern bool_t xdr_int64_t(XDR *, int64_t *); 448 extern bool_t xdr_uint64_t(XDR *, uint64_t *); 449 #endif 450 451 #ifndef _KERNEL 452 extern bool_t xdr_u_char(XDR *, uchar_t *); 453 extern bool_t xdr_vector(XDR *, char *, const uint_t, const uint_t, const 454 xdrproc_t); 455 extern bool_t xdr_float(XDR *, float *); 456 extern bool_t xdr_double(XDR *, double *); 457 extern bool_t xdr_quadruple(XDR *, long double *); 458 #endif /* !_KERNEL */ 459 #else 460 extern bool_t xdr_void(); 461 extern bool_t xdr_int(); 462 extern bool_t xdr_u_int(); 463 extern bool_t xdr_long(); 464 extern bool_t xdr_u_long(); 465 extern bool_t xdr_short(); 466 extern bool_t xdr_u_short(); 467 extern bool_t xdr_bool(); 468 extern bool_t xdr_enum(); 469 extern bool_t xdr_array(); 470 extern bool_t xdr_bytes(); 471 extern bool_t xdr_opaque(); 472 extern bool_t xdr_string(); 473 extern bool_t xdr_union(); 474 475 extern bool_t xdr_hyper(); 476 extern bool_t xdr_longlong_t(); 477 extern bool_t xdr_u_hyper(); 478 extern bool_t xdr_u_longlong_t(); 479 extern bool_t xdr_char(); 480 extern bool_t xdr_reference(); 481 extern bool_t xdr_pointer(); 482 extern void xdr_free(); 483 extern bool_t xdr_wrapstring(); 484 extern bool_t xdr_time_t(); 485 486 extern bool_t xdr_int8_t(); 487 extern bool_t xdr_uint8_t(); 488 extern bool_t xdr_int16_t(); 489 extern bool_t xdr_uint16_t(); 490 extern bool_t xdr_int32_t(); 491 extern bool_t xdr_uint32_t(); 492 #if defined(_INT64_TYPE) 493 extern bool_t xdr_int64_t(); 494 extern bool_t xdr_uint64_t(); 495 #endif 496 497 #ifndef _KERNEL 498 extern bool_t xdr_u_char(); 499 extern bool_t xdr_vector(); 500 extern bool_t xdr_float(); 501 extern bool_t xdr_double(); 502 extern bool_t xdr_quadruple(); 503 #endif /* !_KERNEL */ 504 #endif 505 506 /* 507 * Common opaque bytes objects used by many rpc protocols; 508 * declared here due to commonality. 509 */ 510 #define MAX_NETOBJ_SZ 1024 511 struct netobj { 512 uint_t n_len; 513 char *n_bytes; 514 }; 515 typedef struct netobj netobj; 516 517 #ifdef __STDC__ 518 extern bool_t xdr_netobj(XDR *, netobj *); 519 #else 520 extern bool_t xdr_netobj(); 521 #endif 522 523 /* 524 * These are XDR control operators 525 */ 526 527 #define XDR_GET_BYTES_AVAIL 1 528 529 struct xdr_bytesrec { 530 bool_t xc_is_last_record; 531 size_t xc_num_avail; 532 }; 533 534 typedef struct xdr_bytesrec xdr_bytesrec; 535 536 /* 537 * These are the request arguments to XDR_CONTROL. 538 * 539 * XDR_PEEK - returns the contents of the next XDR unit on the XDR stream. 540 * XDR_SKIPBYTES - skips the next N bytes in the XDR stream. 541 * XDR_RDMAGET - for xdr implementation over RDMA, gets private flags from 542 * the XDR stream being moved over RDMA 543 * XDR_RDMANOCHUNK - for xdr implementaion over RDMA, sets private flags in 544 * the XDR stream moving over RDMA. 545 */ 546 #ifdef _KERNEL 547 #define XDR_PEEK 2 548 #define XDR_SKIPBYTES 3 549 #define XDR_RDMAGET 4 550 #define XDR_RDMASET 5 551 #endif 552 553 /* 554 * These are the public routines for the various implementations of 555 * xdr streams. 556 */ 557 #ifndef _KERNEL 558 #ifdef __STDC__ 559 extern void xdrmem_create(XDR *, const caddr_t, const uint_t, const enum 560 xdr_op); 561 /* XDR using memory buffers */ 562 extern void xdrstdio_create(XDR *, FILE *, const enum xdr_op); 563 /* XDR using stdio library */ 564 extern void xdrrec_create(XDR *, const uint_t, const uint_t, const caddr_t, 565 int (*) (void *, caddr_t, int), int (*) (void *, caddr_t, int)); 566 /* XDR pseudo records for tcp */ 567 extern bool_t xdrrec_endofrecord(XDR *, bool_t); 568 /* make end of xdr record */ 569 extern bool_t xdrrec_skiprecord(XDR *); 570 /* move to beginning of next record */ 571 extern bool_t xdrrec_eof(XDR *); 572 extern uint_t xdrrec_readbytes(XDR *, caddr_t, uint_t); 573 /* true if no more input */ 574 #else 575 extern void xdrmem_create(); 576 extern void xdrstdio_create(); 577 extern void xdrrec_create(); 578 extern bool_t xdrrec_endofrecord(); 579 extern bool_t xdrrec_skiprecord(); 580 extern bool_t xdrrec_eof(); 581 extern uint_t xdrrec_readbytes(); 582 #endif 583 #else 584 585 extern void xdrmem_create(XDR *, caddr_t, uint_t, enum xdr_op); 586 extern void xdrmblk_init(XDR *, mblk_t *, enum xdr_op, int); 587 extern bool_t xdrmblk_getmblk(XDR *, mblk_t **, uint_t *); 588 extern bool_t xdrmblk_putmblk(XDR *, mblk_t *, uint_t); 589 590 extern struct xdr_ops xdrmblk_ops; 591 592 struct rpc_msg; 593 extern bool_t xdr_callmsg(XDR *, struct rpc_msg *); 594 extern bool_t xdr_replymsg_body(XDR *, struct rpc_msg *); 595 extern bool_t xdr_replymsg_hdr(XDR *, struct rpc_msg *); 596 597 #endif /* !_KERNEL */ 598 599 #ifdef __cplusplus 600 } 601 #endif 602 603 #endif /* !_RPC_XDR_H */ 604