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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 * 21 * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 22 * Use is subject to license terms. 23 */ 24 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 25 /* All Rights Reserved */ 26 /* 27 * Portions of this source code were derived from Berkeley 28 * 4.3 BSD under license from the Regents of the University of 29 * California. 30 */ 31 32 /* 33 * xdr.h, External Data Representation Serialization Routines. 34 * 35 */ 36 37 #ifndef _RPC_XDR_H 38 #define _RPC_XDR_H 39 40 #include <sys/byteorder.h> /* For all ntoh* and hton*() kind of macros */ 41 #include <rpc/types.h> /* For all ntoh* and hton*() kind of macros */ 42 #ifndef _KERNEL 43 #include <stdio.h> /* defines FILE *, used in ANSI C function prototypes */ 44 #endif 45 #ifdef _KERNEL 46 #include <sys/stream.h> 47 #endif 48 49 #ifdef __cplusplus 50 extern "C" { 51 #endif 52 53 /* 54 * XDR provides a conventional way for converting between C data 55 * types and an external bit-string representation. Library supplied 56 * routines provide for the conversion on built-in C data types. These 57 * routines and utility routines defined here are used to help implement 58 * a type encode/decode routine for each user-defined type. 59 * 60 * Each data type provides a single procedure which takes two arguments: 61 * 62 * bool_t 63 * xdrproc(xdrs, argresp) 64 * XDR *xdrs; 65 * <type> *argresp; 66 * 67 * xdrs is an instance of a XDR handle, to which or from which the data 68 * type is to be converted. argresp is a pointer to the structure to be 69 * converted. The XDR handle contains an operation field which indicates 70 * which of the operations (ENCODE, DECODE * or FREE) is to be performed. 71 * 72 * XDR_DECODE may allocate space if the pointer argresp is null. This 73 * data can be freed with the XDR_FREE operation. 74 * 75 * We write only one procedure per data type to make it easy 76 * to keep the encode and decode procedures for a data type consistent. 77 * In many cases the same code performs all operations on a user defined type, 78 * because all the hard work is done in the component type routines. 79 * decode as a series of calls on the nested data types. 80 */ 81 82 /* 83 * Xdr operations. XDR_ENCODE causes the type to be encoded into the 84 * stream. XDR_DECODE causes the type to be extracted from the stream. 85 * XDR_FREE can be used to release the space allocated by an XDR_DECODE 86 * request. 87 */ 88 enum xdr_op { 89 XDR_ENCODE = 0, 90 XDR_DECODE = 1, 91 XDR_FREE = 2 92 }; 93 94 /* 95 * This is the number of bytes per unit of external data. 96 */ 97 #define BYTES_PER_XDR_UNIT (4) 98 #define RNDUP(x) ((((x) + BYTES_PER_XDR_UNIT - 1) / BYTES_PER_XDR_UNIT) \ 99 * BYTES_PER_XDR_UNIT) 100 101 /* 102 * The XDR handle. 103 * Contains operation which is being applied to the stream, 104 * an operations vector for the paticular implementation (e.g. see xdr_mem.c), 105 * and two private fields for the use of the particular impelementation. 106 * 107 * PSARC 2003/523 Contract Private Interface 108 * XDR 109 * Changes must be reviewed by Solaris File Sharing 110 * Changes must be communicated to contract-2003-523@sun.com 111 */ 112 typedef struct XDR { 113 enum xdr_op x_op; /* operation; fast additional param */ 114 struct xdr_ops *x_ops; 115 caddr_t x_public; /* users' data */ 116 caddr_t x_private; /* pointer to private data */ 117 caddr_t x_base; /* private used for position info */ 118 int x_handy; /* extra private word */ 119 } XDR; 120 121 /* 122 * PSARC 2003/523 Contract Private Interface 123 * xdr_ops 124 * Changes must be reviewed by Solaris File Sharing 125 * Changes must be communicated to contract-2003-523@sun.com 126 */ 127 struct xdr_ops { 128 #ifdef __STDC__ 129 #if !defined(_KERNEL) 130 bool_t (*x_getlong)(struct XDR *, long *); 131 /* get a long from underlying stream */ 132 bool_t (*x_putlong)(struct XDR *, long *); 133 /* put a long to " */ 134 #endif /* KERNEL */ 135 bool_t (*x_getbytes)(struct XDR *, caddr_t, int); 136 /* get some bytes from " */ 137 bool_t (*x_putbytes)(struct XDR *, caddr_t, int); 138 /* put some bytes to " */ 139 uint_t (*x_getpostn)(struct XDR *); 140 /* returns bytes off from beginning */ 141 bool_t (*x_setpostn)(struct XDR *, uint_t); 142 /* lets you reposition the stream */ 143 rpc_inline_t *(*x_inline)(struct XDR *, int); 144 /* buf quick ptr to buffered data */ 145 void (*x_destroy)(struct XDR *); 146 /* free privates of this xdr_stream */ 147 bool_t (*x_control)(struct XDR *, int, void *); 148 #if defined(_LP64) || defined(_KERNEL) 149 bool_t (*x_getint32)(struct XDR *, int32_t *); 150 /* get a int from underlying stream */ 151 bool_t (*x_putint32)(struct XDR *, int32_t *); 152 /* put an int to " */ 153 #endif /* _LP64 || _KERNEL */ 154 #else 155 #if !defined(_KERNEL) 156 bool_t (*x_getlong)(); /* get a long from underlying stream */ 157 bool_t (*x_putlong)(); /* put a long to " */ 158 #endif /* KERNEL */ 159 bool_t (*x_getbytes)(); /* get some bytes from " */ 160 bool_t (*x_putbytes)(); /* put some bytes to " */ 161 uint_t (*x_getpostn)(); /* returns bytes off from beginning */ 162 bool_t (*x_setpostn)(); /* lets you reposition the stream */ 163 rpc_inline_t *(*x_inline)(); 164 /* buf quick ptr to buffered data */ 165 void (*x_destroy)(); /* free privates of this xdr_stream */ 166 bool_t (*x_control)(); 167 #if defined(_LP64) || defined(_KERNEL) 168 bool_t (*x_getint32)(); 169 bool_t (*x_putint32)(); 170 #endif /* _LP64 || defined(_KERNEL) */ 171 #endif 172 }; 173 174 /* 175 * Operations defined on a XDR handle 176 * 177 * XDR *xdrs; 178 * long *longp; 179 * caddr_t addr; 180 * uint_t len; 181 * uint_t pos; 182 */ 183 #if !defined(_KERNEL) 184 #define XDR_GETLONG(xdrs, longp) \ 185 (*(xdrs)->x_ops->x_getlong)(xdrs, longp) 186 #define xdr_getlong(xdrs, longp) \ 187 (*(xdrs)->x_ops->x_getlong)(xdrs, longp) 188 189 #define XDR_PUTLONG(xdrs, longp) \ 190 (*(xdrs)->x_ops->x_putlong)(xdrs, longp) 191 #define xdr_putlong(xdrs, longp) \ 192 (*(xdrs)->x_ops->x_putlong)(xdrs, longp) 193 #endif /* KERNEL */ 194 195 196 #if !defined(_LP64) && !defined(_KERNEL) 197 198 /* 199 * For binary compatability on ILP32 we do not change the shape 200 * of the XDR structure and the GET/PUTINT32 functions just use 201 * the get/putlong vectors which operate on identically-sized 202 * units of data. 203 */ 204 205 #define XDR_GETINT32(xdrs, int32p) \ 206 (*(xdrs)->x_ops->x_getlong)(xdrs, (long *)int32p) 207 #define xdr_getint32(xdrs, int32p) \ 208 (*(xdrs)->x_ops->x_getlong)(xdrs, (long *)int32p) 209 210 #define XDR_PUTINT32(xdrs, int32p) \ 211 (*(xdrs)->x_ops->x_putlong)(xdrs, (long *)int32p) 212 #define xdr_putint32(xdrs, int32p) \ 213 (*(xdrs)->x_ops->x_putlong)(xdrs, (long *)int32p) 214 215 #else /* !_LP64 && !_KERNEL */ 216 217 #define XDR_GETINT32(xdrs, int32p) \ 218 (*(xdrs)->x_ops->x_getint32)(xdrs, int32p) 219 #define xdr_getint32(xdrs, int32p) \ 220 (*(xdrs)->x_ops->x_getint32)(xdrs, int32p) 221 222 #define XDR_PUTINT32(xdrs, int32p) \ 223 (*(xdrs)->x_ops->x_putint32)(xdrs, int32p) 224 #define xdr_putint32(xdrs, int32p) \ 225 (*(xdrs)->x_ops->x_putint32)(xdrs, int32p) 226 227 #endif /* !_LP64 && !_KERNEL */ 228 229 #define XDR_GETBYTES(xdrs, addr, len) \ 230 (*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len) 231 #define xdr_getbytes(xdrs, addr, len) \ 232 (*(xdrs)->x_ops->x_getbytes)(xdrs, addr, len) 233 234 #define XDR_PUTBYTES(xdrs, addr, len) \ 235 (*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len) 236 #define xdr_putbytes(xdrs, addr, len) \ 237 (*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len) 238 239 #define XDR_GETPOS(xdrs) \ 240 (*(xdrs)->x_ops->x_getpostn)(xdrs) 241 #define xdr_getpos(xdrs) \ 242 (*(xdrs)->x_ops->x_getpostn)(xdrs) 243 244 #define XDR_SETPOS(xdrs, pos) \ 245 (*(xdrs)->x_ops->x_setpostn)(xdrs, pos) 246 #define xdr_setpos(xdrs, pos) \ 247 (*(xdrs)->x_ops->x_setpostn)(xdrs, pos) 248 249 #define XDR_INLINE(xdrs, len) \ 250 (*(xdrs)->x_ops->x_inline)(xdrs, len) 251 #define xdr_inline(xdrs, len) \ 252 (*(xdrs)->x_ops->x_inline)(xdrs, len) 253 254 #define XDR_DESTROY(xdrs) \ 255 (*(xdrs)->x_ops->x_destroy)(xdrs) 256 #define xdr_destroy(xdrs) \ 257 (*(xdrs)->x_ops->x_destroy)(xdrs) 258 259 #define XDR_CONTROL(xdrs, req, op) \ 260 (*(xdrs)->x_ops->x_control)(xdrs, req, op) 261 #define xdr_control(xdrs, req, op) \ 262 (*(xdrs)->x_ops->x_control)(xdrs, req, op) 263 264 /* 265 * Support struct for discriminated unions. 266 * You create an array of xdrdiscrim structures, terminated with 267 * a entry with a null procedure pointer. The xdr_union routine gets 268 * the discriminant value and then searches the array of structures 269 * for a matching value. If a match is found the associated xdr routine 270 * is called to handle that part of the union. If there is 271 * no match, then a default routine may be called. 272 * If there is no match and no default routine it is an error. 273 */ 274 275 276 /* 277 * A xdrproc_t exists for each data type which is to be encoded or decoded. 278 * 279 * The second argument to the xdrproc_t is a pointer to an opaque pointer. 280 * The opaque pointer generally points to a structure of the data type 281 * to be decoded. If this pointer is 0, then the type routines should 282 * allocate dynamic storage of the appropriate size and return it. 283 * bool_t (*xdrproc_t)(XDR *, void *); 284 */ 285 #ifdef __cplusplus 286 typedef bool_t (*xdrproc_t)(XDR *, void *); 287 #else 288 #ifdef __STDC__ 289 typedef bool_t (*xdrproc_t)(); /* For Backward compatibility */ 290 #else 291 typedef bool_t (*xdrproc_t)(); 292 #endif 293 #endif 294 295 #define NULL_xdrproc_t ((xdrproc_t)0) 296 297 #if defined(_LP64) || defined(_I32LPx) 298 #define xdr_rpcvers(xdrs, versp) xdr_u_int(xdrs, versp) 299 #define xdr_rpcprog(xdrs, progp) xdr_u_int(xdrs, progp) 300 #define xdr_rpcproc(xdrs, procp) xdr_u_int(xdrs, procp) 301 #define xdr_rpcprot(xdrs, protp) xdr_u_int(xdrs, protp) 302 #define xdr_rpcport(xdrs, portp) xdr_u_int(xdrs, portp) 303 #else 304 #define xdr_rpcvers(xdrs, versp) xdr_u_long(xdrs, versp) 305 #define xdr_rpcprog(xdrs, progp) xdr_u_long(xdrs, progp) 306 #define xdr_rpcproc(xdrs, procp) xdr_u_long(xdrs, procp) 307 #define xdr_rpcprot(xdrs, protp) xdr_u_long(xdrs, protp) 308 #define xdr_rpcport(xdrs, portp) xdr_u_long(xdrs, portp) 309 #endif 310 311 struct xdr_discrim { 312 int value; 313 xdrproc_t proc; 314 }; 315 316 /* 317 * In-line routines for fast encode/decode of primitve data types. 318 * Caveat emptor: these use single memory cycles to get the 319 * data from the underlying buffer, and will fail to operate 320 * properly if the data is not aligned. The standard way to use these 321 * is to say: 322 * if ((buf = XDR_INLINE(xdrs, count)) == NULL) 323 * return (FALSE); 324 * <<< macro calls >>> 325 * where ``count'' is the number of bytes of data occupied 326 * by the primitive data types. 327 * 328 * N.B. and frozen for all time: each data type here uses 4 bytes 329 * of external representation. 330 */ 331 332 #define IXDR_GET_INT32(buf) ((int32_t)ntohl((uint32_t)*(buf)++)) 333 #define IXDR_PUT_INT32(buf, v) (*(buf)++ = (int32_t)htonl((uint32_t)v)) 334 #define IXDR_GET_U_INT32(buf) ((uint32_t)IXDR_GET_INT32(buf)) 335 #define IXDR_PUT_U_INT32(buf, v) IXDR_PUT_INT32((buf), ((int32_t)(v))) 336 337 #if !defined(_KERNEL) && !defined(_LP64) 338 339 #define IXDR_GET_LONG(buf) ((long)ntohl((ulong_t)*(buf)++)) 340 #define IXDR_PUT_LONG(buf, v) (*(buf)++ = (long)htonl((ulong_t)v)) 341 #define IXDR_GET_U_LONG(buf) ((ulong_t)IXDR_GET_LONG(buf)) 342 #define IXDR_PUT_U_LONG(buf, v) IXDR_PUT_LONG((buf), ((long)(v))) 343 344 #define IXDR_GET_BOOL(buf) ((bool_t)IXDR_GET_LONG(buf)) 345 #define IXDR_GET_ENUM(buf, t) ((t)IXDR_GET_LONG(buf)) 346 #define IXDR_GET_SHORT(buf) ((short)IXDR_GET_LONG(buf)) 347 #define IXDR_GET_U_SHORT(buf) ((ushort_t)IXDR_GET_LONG(buf)) 348 349 #define IXDR_PUT_BOOL(buf, v) IXDR_PUT_LONG((buf), ((long)(v))) 350 #define IXDR_PUT_ENUM(buf, v) IXDR_PUT_LONG((buf), ((long)(v))) 351 #define IXDR_PUT_SHORT(buf, v) IXDR_PUT_LONG((buf), ((long)(v))) 352 #define IXDR_PUT_U_SHORT(buf, v) IXDR_PUT_LONG((buf), ((long)(v))) 353 354 #else 355 356 #define IXDR_GET_BOOL(buf) ((bool_t)IXDR_GET_INT32(buf)) 357 #define IXDR_GET_ENUM(buf, t) ((t)IXDR_GET_INT32(buf)) 358 #define IXDR_GET_SHORT(buf) ((short)IXDR_GET_INT32(buf)) 359 #define IXDR_GET_U_SHORT(buf) ((ushort_t)IXDR_GET_INT32(buf)) 360 361 #define IXDR_PUT_BOOL(buf, v) IXDR_PUT_INT32((buf), ((int)(v))) 362 #define IXDR_PUT_ENUM(buf, v) IXDR_PUT_INT32((buf), ((int)(v))) 363 #define IXDR_PUT_SHORT(buf, v) IXDR_PUT_INT32((buf), ((int)(v))) 364 #define IXDR_PUT_U_SHORT(buf, v) IXDR_PUT_INT32((buf), ((int)(v))) 365 366 #endif 367 368 #ifndef _LITTLE_ENDIAN 369 #define IXDR_GET_HYPER(buf, v) { \ 370 *((int32_t *)(&v)) = ntohl(*(uint32_t *)buf++); \ 371 *((int32_t *)(((char *)&v) + BYTES_PER_XDR_UNIT)) \ 372 = ntohl(*(uint32_t *)buf++); \ 373 } 374 #define IXDR_PUT_HYPER(buf, v) { \ 375 *(buf)++ = (int32_t)htonl(*(uint32_t *) \ 376 ((char *)&v)); \ 377 *(buf)++ = \ 378 (int32_t)htonl(*(uint32_t *)(((char *)&v) \ 379 + BYTES_PER_XDR_UNIT)); \ 380 } 381 #else 382 383 #define IXDR_GET_HYPER(buf, v) { \ 384 *((int32_t *)(((char *)&v) + \ 385 BYTES_PER_XDR_UNIT)) \ 386 = ntohl(*(uint32_t *)buf++); \ 387 *((int32_t *)(&v)) = \ 388 ntohl(*(uint32_t *)buf++); \ 389 } 390 391 #define IXDR_PUT_HYPER(buf, v) { \ 392 *(buf)++ = \ 393 (int32_t)htonl(*(uint32_t *)(((char *)&v) + \ 394 BYTES_PER_XDR_UNIT)); \ 395 *(buf)++ = \ 396 (int32_t)htonl(*(uint32_t *)((char *)&v)); \ 397 } 398 #endif 399 #define IXDR_GET_U_HYPER(buf, v) IXDR_GET_HYPER(buf, v) 400 #define IXDR_PUT_U_HYPER(buf, v) IXDR_PUT_HYPER(buf, v) 401 402 403 /* 404 * These are the "generic" xdr routines. 405 */ 406 #ifdef __STDC__ 407 extern bool_t xdr_void(void); 408 extern bool_t xdr_int(XDR *, int *); 409 extern bool_t xdr_u_int(XDR *, uint_t *); 410 extern bool_t xdr_long(XDR *, long *); 411 extern bool_t xdr_u_long(XDR *, ulong_t *); 412 extern bool_t xdr_short(XDR *, short *); 413 extern bool_t xdr_u_short(XDR *, ushort_t *); 414 extern bool_t xdr_bool(XDR *, bool_t *); 415 extern bool_t xdr_enum(XDR *, enum_t *); 416 extern bool_t xdr_array(XDR *, caddr_t *, uint_t *, const uint_t, 417 const uint_t, const xdrproc_t); 418 extern bool_t xdr_bytes(XDR *, char **, uint_t *, const uint_t); 419 extern bool_t xdr_opaque(XDR *, caddr_t, const uint_t); 420 extern bool_t xdr_string(XDR *, char **, const uint_t); 421 extern bool_t xdr_union(XDR *, enum_t *, char *, 422 const struct xdr_discrim *, const xdrproc_t); 423 extern bool_t xdr_vector(XDR *, char *, const uint_t, const uint_t, 424 const xdrproc_t); 425 extern unsigned int xdr_sizeof(xdrproc_t, void *); 426 427 extern bool_t xdr_hyper(XDR *, longlong_t *); 428 extern bool_t xdr_longlong_t(XDR *, longlong_t *); 429 extern bool_t xdr_u_hyper(XDR *, u_longlong_t *); 430 extern bool_t xdr_u_longlong_t(XDR *, u_longlong_t *); 431 432 extern bool_t xdr_char(XDR *, char *); 433 extern bool_t xdr_u_char(XDR *, uchar_t *); 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_float(XDR *, float *); 453 extern bool_t xdr_double(XDR *, double *); 454 extern bool_t xdr_quadruple(XDR *, long double *); 455 #endif /* !_KERNEL */ 456 #else 457 extern bool_t xdr_void(); 458 extern bool_t xdr_int(); 459 extern bool_t xdr_u_int(); 460 extern bool_t xdr_long(); 461 extern bool_t xdr_u_long(); 462 extern bool_t xdr_short(); 463 extern bool_t xdr_u_short(); 464 extern bool_t xdr_bool(); 465 extern bool_t xdr_enum(); 466 extern bool_t xdr_array(); 467 extern bool_t xdr_bytes(); 468 extern bool_t xdr_opaque(); 469 extern bool_t xdr_string(); 470 extern bool_t xdr_union(); 471 extern bool_t xdr_vector(); 472 473 extern bool_t xdr_hyper(); 474 extern bool_t xdr_longlong_t(); 475 extern bool_t xdr_u_hyper(); 476 extern bool_t xdr_u_longlong_t(); 477 extern bool_t xdr_char(); 478 extern bool_t xdr_u_char(); 479 extern bool_t xdr_reference(); 480 extern bool_t xdr_pointer(); 481 extern void xdr_free(); 482 extern bool_t xdr_wrapstring(); 483 extern bool_t xdr_time_t(); 484 485 extern bool_t xdr_int8_t(); 486 extern bool_t xdr_uint8_t(); 487 extern bool_t xdr_int16_t(); 488 extern bool_t xdr_uint16_t(); 489 extern bool_t xdr_int32_t(); 490 extern bool_t xdr_uint32_t(); 491 #if defined(_INT64_TYPE) 492 extern bool_t xdr_int64_t(); 493 extern bool_t xdr_uint64_t(); 494 #endif 495 496 #ifndef _KERNEL 497 extern bool_t xdr_float(); 498 extern bool_t xdr_double(); 499 extern bool_t xdr_quadruple(); 500 #endif /* !_KERNEL */ 501 #endif 502 503 /* 504 * Common opaque bytes objects used by many rpc protocols; 505 * declared here due to commonality. 506 */ 507 #define MAX_NETOBJ_SZ 1024 508 struct netobj { 509 uint_t n_len; 510 char *n_bytes; 511 }; 512 typedef struct netobj netobj; 513 514 #ifdef __STDC__ 515 extern bool_t xdr_netobj(XDR *, netobj *); 516 #else 517 extern bool_t xdr_netobj(); 518 #endif 519 520 /* 521 * These are XDR control operators 522 */ 523 524 #define XDR_GET_BYTES_AVAIL 1 525 526 struct xdr_bytesrec { 527 bool_t xc_is_last_record; 528 size_t xc_num_avail; 529 }; 530 531 typedef struct xdr_bytesrec xdr_bytesrec; 532 533 /* 534 * These are the request arguments to XDR_CONTROL. 535 * 536 * XDR_PEEK - returns the contents of the next XDR unit on the XDR stream. 537 * XDR_SKIPBYTES - skips the next N bytes in the XDR stream. 538 * XDR_RDMAGET - for xdr implementation over RDMA, gets private flags from 539 * the XDR stream being moved over RDMA 540 * XDR_RDMANOCHUNK - for xdr implementaion over RDMA, sets private flags in 541 * the XDR stream moving over RDMA. 542 */ 543 #ifdef _KERNEL 544 #define XDR_PEEK 2 545 #define XDR_SKIPBYTES 3 546 #define XDR_RDMA_GET_FLAGS 4 547 #define XDR_RDMA_SET_FLAGS 5 548 #define XDR_RDMA_ADD_CHUNK 6 549 #define XDR_RDMA_GET_CHUNK_LEN 7 550 #define XDR_RDMA_SET_WLIST 8 551 #define XDR_RDMA_GET_WLIST 9 552 #define XDR_RDMA_GET_WCINFO 10 553 #define XDR_RDMA_GET_RLIST 11 554 #endif 555 556 /* 557 * These are the public routines for the various implementations of 558 * xdr streams. 559 */ 560 #ifndef _KERNEL 561 #ifdef __STDC__ 562 extern void xdrmem_create(XDR *, const caddr_t, const uint_t, const enum 563 xdr_op); 564 /* XDR using memory buffers */ 565 extern void xdrstdio_create(XDR *, FILE *, const enum xdr_op); 566 /* XDR using stdio library */ 567 extern void xdrrec_create(XDR *, const uint_t, const uint_t, const caddr_t, 568 int (*) (void *, caddr_t, int), int (*) (void *, caddr_t, int)); 569 /* XDR pseudo records for tcp */ 570 extern bool_t xdrrec_endofrecord(XDR *, bool_t); 571 /* make end of xdr record */ 572 extern bool_t xdrrec_skiprecord(XDR *); 573 /* move to beginning of next record */ 574 extern bool_t xdrrec_eof(XDR *); 575 extern uint_t xdrrec_readbytes(XDR *, caddr_t, uint_t); 576 /* true if no more input */ 577 #else 578 extern void xdrmem_create(); 579 extern void xdrstdio_create(); 580 extern void xdrrec_create(); 581 extern bool_t xdrrec_endofrecord(); 582 extern bool_t xdrrec_skiprecord(); 583 extern bool_t xdrrec_eof(); 584 extern uint_t xdrrec_readbytes(); 585 #endif 586 #else 587 588 #define DLEN(mp) (mp->b_cont ? msgdsize(mp) : (mp->b_wptr - mp->b_rptr)) 589 590 extern void xdrmem_create(XDR *, caddr_t, uint_t, enum xdr_op); 591 extern void xdrmblk_init(XDR *, mblk_t *, enum xdr_op, int); 592 extern bool_t xdrmblk_getmblk(XDR *, mblk_t **, uint_t *); 593 extern bool_t xdrmblk_putmblk(XDR *, mblk_t *, uint_t); 594 extern struct xdr_ops xdrmblk_ops; 595 extern struct xdr_ops xdrrdmablk_ops; 596 extern struct xdr_ops xdrrdma_ops; 597 598 struct rpc_msg; 599 extern bool_t xdr_callmsg(XDR *, struct rpc_msg *); 600 extern bool_t xdr_replymsg_body(XDR *, struct rpc_msg *); 601 extern bool_t xdr_replymsg_hdr(XDR *, struct rpc_msg *); 602 603 #endif /* !_KERNEL */ 604 605 #ifdef __cplusplus 606 } 607 #endif 608 609 #endif /* !_RPC_XDR_H */ 610