xref: /titanic_41/usr/src/lib/smbsrv/libmlrpc/common/libmlrpc.h (revision cf115f3609b69ef25a8b5a1c0a4a5afa19271fa8)
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 /*
22  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
23  * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
24  */
25 
26 #ifndef	_LIBMLRPC_H
27 #define	_LIBMLRPC_H
28 
29 #include <sys/types.h>
30 #include <sys/uio.h>
31 #include <smbsrv/wintypes.h>
32 #include <smbsrv/ndr.h>
33 #include <smbsrv/smb_sid.h>
34 #include <smbsrv/smb_xdr.h>
35 
36 #ifdef	__cplusplus
37 extern "C" {
38 #endif
39 
40 /*
41  * An MSRPC compatible implementation of OSF DCE RPC.  DCE RPC is derived
42  * from the Apollo Network Computing Architecture (NCA) RPC implementation.
43  *
44  * CAE Specification (1997)
45  * DCE 1.1: Remote Procedure Call
46  * Document Number: C706
47  * The Open Group
48  * ogspecs@opengroup.org
49  *
50  * This implementation is based on the DCE Remote Procedure Call spec with
51  * enhancements to support Unicode strings.  The diagram below shows the
52  * DCE RPC layers compared against ONC SUN RPC.
53  *
54  *	NDR RPC Layers		Sun RPC Layers		Remark
55  *	+---------------+	+---------------+	+---------------+
56  *	+---------------+	+---------------+
57  *	| Application	|	| Application	|	The application
58  *	+---------------+	+---------------+
59  *	| Hand coded    |	| RPCGEN gen'd  |	Where the real
60  *	| client/server |	| client/server |	work happens
61  *	| srvsvc.ndl	|	| *_svc.c *_clnt|
62  *	| srvsvc.c	|	|               |
63  *	+---------------+	+---------------+
64  *	| RPC Library	|	| RPC Library   |	Calls/Return
65  *	| ndr_*.c       |	|               |	Binding/PMAP
66  *	+---------------+	+---------------+
67  *	| RPC Protocol	|	| RPC Protocol  |	Headers, Auth,
68  *	| rpcpdu.ndl    |	|               |
69  *	+---------------+	+---------------+
70  *	| IDL gen'd	|	| RPCGEN gen'd  |	Aggregate
71  *	| NDR stubs	|	| XDR stubs     |	Composition
72  *	| *__ndr.c      |	| *_xdr.c       |
73  *	+---------------+	+---------------+
74  *	| NDR Represen	|	| XDR Represen  |	Byte order, padding
75  *	+---------------+	+---------------+
76  *	| Packet Heaps  |	| Network Conn  |	DCERPC does not talk
77  *	| ndo_*.c       |	| clnt_{tcp,udp}|	directly to network.
78  *	+---------------+	+---------------+
79  *
80  * There are two major differences between the DCE RPC and ONC RPC:
81  *
82  * 1. NDR RPC only generates or processes packets from buffers.  Other
83  *    layers must take care of packet transmission and reception.
84  *    The packet heaps are managed through a simple interface provided
85  *    by the Network Data Representation (NDR) module called ndr_stream_t.
86  *    ndo_*.c modules implement the different flavors (operations) of
87  *    packet heaps.
88  *
89  *    ONC RPC communicates directly with the network.  You have to do
90  *    something special for the RPC packet to be placed in a buffer
91  *    rather than sent to the wire.
92  *
93  * 2. NDR RPC uses application provided heaps to support operations.
94  *    A heap is a single, monolithic chunk of memory that NDR RPC manages
95  *    as it allocates.  When the operation and its result are done, the
96  *    heap is disposed of as a single item.  The transaction, which
97  *    is the anchor of most operations, contains the necessary book-
98  *    keeping for the heap.
99  *
100  *    ONC RPC uses malloc() liberally throughout its run-time system.
101  *    To free results, ONC RPC supports an XDR_FREE operation that
102  *    traverses data structures freeing memory as it goes, whether
103  *    it was malloc'd or not.
104  */
105 
106 /*
107  * Dispatch Return Code (DRC)
108  *
109  *	0x8000	15:01	Set to indicate a fault, clear indicates status
110  *	0x7F00	08:07	Status/Fault specific
111  *	0x00FF	00:08	PTYPE_... of PDU, 0xFF for header
112  */
113 #define	NDR_DRC_OK				0x0000
114 #define	NDR_DRC_MASK_FAULT			0x8000
115 #define	NDR_DRC_MASK_SPECIFIER			0xFF00
116 #define	NDR_DRC_MASK_PTYPE			0x00FF
117 
118 /* Fake PTYPE DRC discriminators */
119 #define	NDR_DRC_PTYPE_RPCHDR(DRC)		((DRC) | 0x00FF)
120 #define	NDR_DRC_PTYPE_API(DRC)			((DRC) | 0x00AA)
121 
122 /* DRC Recognizers */
123 #define	NDR_DRC_IS_OK(DRC)	(((DRC) & NDR_DRC_MASK_SPECIFIER) == 0)
124 #define	NDR_DRC_IS_FAULT(DRC)	(((DRC) & NDR_DRC_MASK_FAULT) != 0)
125 
126 /*
127  * (Un)Marshalling category specifiers
128  */
129 #define	NDR_DRC_FAULT_MODE_MISMATCH		0x8100
130 #define	NDR_DRC_RECEIVED			0x0200
131 #define	NDR_DRC_FAULT_RECEIVED_RUNT		0x8300
132 #define	NDR_DRC_FAULT_RECEIVED_MALFORMED	0x8400
133 #define	NDR_DRC_DECODED				0x0500
134 #define	NDR_DRC_FAULT_DECODE_FAILED		0x8600
135 #define	NDR_DRC_ENCODED				0x0700
136 #define	NDR_DRC_FAULT_ENCODE_FAILED		0x8800
137 #define	NDR_DRC_FAULT_ENCODE_TOO_BIG		0x8900
138 #define	NDR_DRC_SENT				0x0A00
139 #define	NDR_DRC_FAULT_SEND_FAILED		0x8B00
140 
141 /*
142  * Resource category specifier
143  */
144 #define	NDR_DRC_FAULT_RESOURCE_1		0x9100
145 #define	NDR_DRC_FAULT_RESOURCE_2		0x9200
146 
147 /*
148  * Parameters. Usually #define'd with useful alias
149  */
150 #define	NDR_DRC_FAULT_PARAM_0_INVALID		0xC000
151 #define	NDR_DRC_FAULT_PARAM_0_UNIMPLEMENTED	0xD000
152 #define	NDR_DRC_FAULT_PARAM_1_INVALID		0xC100
153 #define	NDR_DRC_FAULT_PARAM_1_UNIMPLEMENTED	0xD100
154 #define	NDR_DRC_FAULT_PARAM_2_INVALID		0xC200
155 #define	NDR_DRC_FAULT_PARAM_2_UNIMPLEMENTED	0xD200
156 #define	NDR_DRC_FAULT_PARAM_3_INVALID		0xC300
157 #define	NDR_DRC_FAULT_PARAM_3_UNIMPLEMENTED	0xD300
158 
159 #define	NDR_DRC_FAULT_OUT_OF_MEMORY		0xF000
160 
161 /* RPCHDR */
162 #define	NDR_DRC_FAULT_RPCHDR_MODE_MISMATCH	0x81FF
163 #define	NDR_DRC_FAULT_RPCHDR_RECEIVED_RUNT	0x83FF
164 #define	NDR_DRC_FAULT_RPCHDR_DECODE_FAILED	0x86FF
165 #define	NDR_DRC_FAULT_RPCHDR_PTYPE_INVALID	0xC0FF	/* PARAM_0_INVALID */
166 #define	NDR_DRC_FAULT_RPCHDR_PTYPE_UNIMPLEMENTED 0xD0FF	/* PARAM_0_UNIMP */
167 
168 /* Request */
169 #define	NDR_DRC_FAULT_REQUEST_PCONT_INVALID	0xC000	/* PARAM_0_INVALID */
170 #define	NDR_DRC_FAULT_REQUEST_OPNUM_INVALID	0xC100	/* PARAM_1_INVALID */
171 
172 /* Bind */
173 #define	NDR_DRC_BINDING_MADE			0x000B	/* OK */
174 #define	NDR_DRC_FAULT_BIND_PCONT_BUSY		0xC00B	/* PARAM_0_INVALID */
175 #define	NDR_DRC_FAULT_BIND_UNKNOWN_SERVICE	0xC10B	/* PARAM_1_INVALID */
176 #define	NDR_DRC_FAULT_BIND_NO_SLOTS		0x910B	/* RESOURCE_1 */
177 
178 /* API */
179 #define	NDR_DRC_FAULT_API_SERVICE_INVALID	0xC0AA	/* PARAM_0_INVALID */
180 #define	NDR_DRC_FAULT_API_BIND_NO_SLOTS		0x91AA	/* RESOURCE_1 */
181 #define	NDR_DRC_FAULT_API_OPNUM_INVALID		0xC1AA	/* PARAM_1_INVALID */
182 
183 struct ndr_xa;
184 struct ndr_client;
185 
186 typedef struct ndr_stub_table {
187 	int		(*func)(void *, struct ndr_xa *);
188 	unsigned short	opnum;
189 } ndr_stub_table_t;
190 
191 typedef struct ndr_service {
192 	char		*name;
193 	char		*desc;
194 	char		*endpoint;
195 	char		*sec_addr_port;
196 	char		*abstract_syntax_uuid;
197 	int		abstract_syntax_version;
198 	char		*transfer_syntax_uuid;
199 	int		transfer_syntax_version;
200 	unsigned	bind_instance_size;
201 	int		(*bind_req)();
202 	int		(*unbind_and_close)();
203 	int		(*call_stub)(struct ndr_xa *);
204 	ndr_typeinfo_t	*interface_ti;
205 	ndr_stub_table_t *stub_table;
206 } ndr_service_t;
207 
208 /*
209  * The list of bindings is anchored at a connection.  Nothing in the
210  * RPC mechanism allocates them.  Binding elements which have service==0
211  * indicate free elements.  When a connection is instantiated, at least
212  * one free binding entry should also be established.  Something like
213  * this should suffice for most (all) situations:
214  *
215  *	struct connection {
216  *		....
217  *		ndr_binding_t *binding_list_head;
218  *		ndr_binding_t binding_pool[N_BINDING_POOL];
219  *		....
220  *	};
221  *
222  *	init_connection(struct connection *conn) {
223  *		....
224  *		ndr_svc_binding_pool_init(&conn->binding_list_head,
225  *		    conn->binding_pool, N_BINDING_POOL);
226  */
227 typedef struct ndr_binding {
228 	struct ndr_binding 	*next;
229 	ndr_p_context_id_t	p_cont_id;
230 	unsigned char		which_side;
231 	struct ndr_client	*clnt;
232 	ndr_service_t		*service;
233 	void 			*instance_specific;
234 } ndr_binding_t;
235 
236 #define	NDR_BIND_SIDE_CLIENT	1
237 #define	NDR_BIND_SIDE_SERVER	2
238 
239 #define	NDR_BINDING_TO_SPECIFIC(BINDING, TYPE) \
240 	((TYPE *) (BINDING)->instance_specific)
241 
242 /*
243  * The binding list space must be provided by the application library
244  * for use by the underlying RPC library.  We need at least two binding
245  * slots per connection.
246  */
247 #define	NDR_N_BINDING_POOL	2
248 
249 typedef struct ndr_pipe {
250 	void 			*np_listener;
251 	const char		*np_endpoint;
252 	smb_netuserinfo_t	*np_user;
253 	int			(*np_send)(struct ndr_pipe *, void *, size_t);
254 	int			(*np_recv)(struct ndr_pipe *, void *, size_t);
255 	int			np_fid;
256 	uint16_t		np_max_xmit_frag;
257 	uint16_t		np_max_recv_frag;
258 	ndr_binding_t		*np_binding;
259 	ndr_binding_t		np_binding_pool[NDR_N_BINDING_POOL];
260 } ndr_pipe_t;
261 
262 /*
263  * Number of bytes required to align SIZE on the next dword/4-byte
264  * boundary.
265  */
266 #define	NDR_ALIGN4(SIZE)	((4 - (SIZE)) & 3);
267 
268 /*
269  * DCE RPC strings (CAE section 14.3.4) are represented as varying or varying
270  * and conformant one-dimensional arrays. Characters can be single-byte
271  * or multi-byte as long as all characters conform to a fixed element size,
272  * i.e. UCS-2 is okay but UTF-8 is not a valid DCE RPC string format. The
273  * string is terminated by a null character of the appropriate element size.
274  *
275  * MSRPC strings should always be varying/conformant and not null terminated.
276  * This format uses the size_is, first_is and length_is attributes (CAE
277  * section 4.2.18).
278  *
279  *	typedef struct string {
280  *		DWORD size_is;
281  *		DWORD first_is;
282  *		DWORD length_is;
283  *		wchar_t string[ANY_SIZE_ARRAY];
284  *	} string_t;
285  *
286  * The size_is attribute is used to specify the number of data elements in
287  * each dimension of an array.
288  *
289  * The first_is attribute is used to define the lower bound for significant
290  * elements in each dimension of an array. For strings this is always 0.
291  *
292  * The length_is attribute is used to define the number of significant
293  * elements in each dimension of an array. For strings this is typically
294  * the same as size_is. Although it might be (size_is - 1) if the string
295  * is null terminated.
296  *
297  *   4 bytes   4 bytes   4 bytes  2bytes 2bytes 2bytes 2bytes
298  * +---------+---------+---------+------+------+------+------+
299  * |size_is  |first_is |length_is| char | char | char | char |
300  * +---------+---------+---------+------+------+------+------+
301  *
302  * Unfortunately, not all MSRPC Unicode strings are null terminated, which
303  * means that the recipient has to manually null-terminate the string after
304  * it has been unmarshalled.  There may be a wide-char pad following a
305  * string, and it may sometimes contains zero, but it's not guaranteed.
306  *
307  * To deal with this, MSRPC sometimes uses an additional wrapper with two
308  * more fields, as shown below.
309  *	length: the array length in bytes excluding terminating null bytes
310  *	maxlen: the array length in bytes including null terminator bytes
311  *	LPTSTR: converted to a string_t by NDR
312  *
313  * typedef struct ms_string {
314  *		WORD length;
315  *		WORD maxlen;
316  *		LPTSTR str;
317  * } ms_string_t;
318  */
319 typedef struct ndr_mstring {
320 	uint16_t length;
321 	uint16_t allosize;
322 	LPTSTR str;
323 } ndr_mstring_t;
324 
325 /*
326  * A number of heap areas are used during marshalling and unmarshalling.
327  * Under some circumstances these areas can be discarded by the library
328  * code, i.e. on the server side before returning to the client and on
329  * completion of a client side bind.  In the case of a client side RPC
330  * call, these areas must be preserved after an RPC returns to give the
331  * caller time to take a copy of the data.  In this case the client must
332  * call ndr_clnt_free_heap to free the memory.
333  *
334  * The heap management data definition looks a bit like this:
335  *
336  * heap -> +---------------+     +------------+
337  *         | iovec[0].base | --> | data block |
338  *         | iovec[0].len  |     +------------+
339  *         +---------------+
340  *                ::
341  *                ::
342  * iov  -> +---------------+     +------------+
343  *         | iovec[n].base | --> | data block |
344  *         | iovec[n].len  |     +------------+
345  *         +---------------+     ^            ^
346  *                               |            |
347  *    next ----------------------+            |
348  *    top  -----------------------------------+
349  *
350  */
351 
352 /*
353  * Setting MAXIOV to 384 will use ((8 * 384) + 16) = 3088 bytes
354  * of the first heap block.
355  */
356 #define	NDR_HEAP_MAXIOV		384
357 #define	NDR_HEAP_BLKSZ		8192
358 
359 typedef struct ndr_heap {
360 	struct iovec iovec[NDR_HEAP_MAXIOV];
361 	struct iovec *iov;
362 	int iovcnt;
363 	char *top;
364 	char *next;
365 } ndr_heap_t;
366 
367 /*
368  * Alternate varying/conformant string definition
369  * - for non-null-terminated strings.
370  */
371 typedef struct ndr_vcs {
372 	/*
373 	 * size_is (actually a copy of length_is) will
374 	 * be inserted here by the marshalling library.
375 	 */
376 	uint32_t vc_first_is;
377 	uint32_t vc_length_is;
378 	uint16_t buffer[ANY_SIZE_ARRAY];
379 } ndr_vcs_t;
380 
381 typedef struct ndr_vcstr {
382 	uint16_t wclen;
383 	uint16_t wcsize;
384 	ndr_vcs_t *vcs;
385 } ndr_vcstr_t;
386 
387 typedef struct ndr_vcb {
388 	/*
389 	 * size_is (actually a copy of length_is) will
390 	 * be inserted here by the marshalling library.
391 	 */
392 	uint32_t vc_first_is;
393 	uint32_t vc_length_is;
394 	uint8_t buffer[ANY_SIZE_ARRAY];
395 } ndr_vcb_t;
396 
397 typedef struct ndr_vcbuf {
398 	uint16_t len;
399 	uint16_t size;
400 	ndr_vcb_t *vcb;
401 } ndr_vcbuf_t;
402 
403 ndr_heap_t *ndr_heap_create(void);
404 void ndr_heap_destroy(ndr_heap_t *);
405 void *ndr_heap_malloc(ndr_heap_t *, unsigned);
406 void *ndr_heap_strdup(ndr_heap_t *, const char *);
407 int ndr_heap_mstring(ndr_heap_t *, const char *, ndr_mstring_t *);
408 void ndr_heap_mkvcs(ndr_heap_t *, char *, ndr_vcstr_t *);
409 void ndr_heap_mkvcb(ndr_heap_t *, uint8_t *, uint32_t, ndr_vcbuf_t *);
410 smb_sid_t *ndr_heap_siddup(ndr_heap_t *, smb_sid_t *);
411 int ndr_heap_used(ndr_heap_t *);
412 int ndr_heap_avail(ndr_heap_t *);
413 
414 #define	NDR_MALLOC(XA, SZ)	ndr_heap_malloc((XA)->heap, SZ)
415 #define	NDR_NEW(XA, T)		ndr_heap_malloc((XA)->heap, sizeof (T))
416 #define	NDR_NEWN(XA, T, N)	ndr_heap_malloc((XA)->heap, sizeof (T)*(N))
417 #define	NDR_STRDUP(XA, S)	ndr_heap_strdup((XA)->heap, (S))
418 #define	NDR_MSTRING(XA, S, OUT)	ndr_heap_mstring((XA)->heap, (S), (OUT))
419 #define	NDR_SIDDUP(XA, S)	ndr_heap_siddup((XA)->heap, (S))
420 
421 typedef struct ndr_xa {
422 	unsigned short		ptype;		/* high bits special */
423 	unsigned short		opnum;
424 	ndr_stream_t		recv_nds;
425 	ndr_hdr_t		recv_hdr;
426 	ndr_stream_t		send_nds;
427 	ndr_hdr_t		send_hdr;
428 	ndr_binding_t		*binding;	/* what we're using */
429 	ndr_binding_t		*binding_list;	/* from connection */
430 	ndr_heap_t		*heap;
431 	ndr_pipe_t		*pipe;
432 } ndr_xa_t;
433 
434 /*
435  * 20-byte opaque id used by various RPC services.
436  */
437 CONTEXT_HANDLE(ndr_hdid) ndr_hdid_t;
438 
439 typedef struct ndr_client {
440 	/* transport stuff (xa_* members) */
441 	int (*xa_init)(struct ndr_client *, ndr_xa_t *);
442 	int (*xa_exchange)(struct ndr_client *, ndr_xa_t *);
443 	int (*xa_read)(struct ndr_client *, ndr_xa_t *);
444 	void (*xa_preserve)(struct ndr_client *, ndr_xa_t *);
445 	void (*xa_destruct)(struct ndr_client *, ndr_xa_t *);
446 	void (*xa_release)(struct ndr_client *);
447 	void			*xa_private;
448 	int			xa_fd;
449 
450 	ndr_hdid_t		*handle;
451 	ndr_binding_t		*binding;
452 	ndr_binding_t		*binding_list;
453 	ndr_binding_t		binding_pool[NDR_N_BINDING_POOL];
454 
455 	boolean_t		nonull;
456 	boolean_t		heap_preserved;
457 	ndr_heap_t		*heap;
458 	ndr_stream_t		*recv_nds;
459 	ndr_stream_t		*send_nds;
460 
461 	uint32_t		next_call_id;
462 	unsigned		next_p_cont_id;
463 } ndr_client_t;
464 
465 typedef struct ndr_handle {
466 	ndr_hdid_t		nh_id;
467 	struct ndr_handle	*nh_next;
468 	ndr_pipe_t		*nh_pipe;
469 	const ndr_service_t	*nh_svc;
470 	ndr_client_t		*nh_clnt;
471 	void			*nh_data;
472 	void			(*nh_data_free)(void *);
473 } ndr_handle_t;
474 
475 #define	NDR_PDU_SIZE_HINT_DEFAULT	(16*1024)
476 #define	NDR_BUF_MAGIC			0x4E425546	/* NBUF */
477 
478 typedef struct ndr_buf {
479 	uint32_t		nb_magic;
480 	ndr_stream_t		nb_nds;
481 	ndr_heap_t		*nb_heap;
482 	ndr_typeinfo_t		*nb_ti;
483 } ndr_buf_t;
484 
485 /* ndr_ops.c */
486 int nds_initialize(ndr_stream_t *, unsigned, int, ndr_heap_t *);
487 void nds_destruct(ndr_stream_t *);
488 void nds_show_state(ndr_stream_t *);
489 
490 /* ndr_client.c */
491 int ndr_clnt_bind(ndr_client_t *, const char *, ndr_binding_t **);
492 int ndr_clnt_call(ndr_binding_t *, int, void *);
493 void ndr_clnt_free_heap(ndr_client_t *);
494 
495 /* ndr_marshal.c */
496 ndr_buf_t *ndr_buf_init(ndr_typeinfo_t *);
497 void ndr_buf_fini(ndr_buf_t *);
498 int ndr_buf_decode(ndr_buf_t *, unsigned, unsigned, const char *data, size_t,
499     void *);
500 int ndr_decode_call(ndr_xa_t *, void *);
501 int ndr_encode_return(ndr_xa_t *, void *);
502 int ndr_encode_call(ndr_xa_t *, void *);
503 int ndr_decode_return(ndr_xa_t *, void *);
504 int ndr_decode_pdu_hdr(ndr_xa_t *);
505 int ndr_encode_pdu_hdr(ndr_xa_t *);
506 void ndr_decode_frag_hdr(ndr_stream_t *, ndr_common_header_t *);
507 void ndr_remove_frag_hdr(ndr_stream_t *);
508 void ndr_show_hdr(ndr_common_header_t *);
509 unsigned ndr_bind_ack_hdr_size(ndr_xa_t *);
510 unsigned ndr_alter_context_rsp_hdr_size(void);
511 
512 /* ndr_server.c */
513 void ndr_pipe_worker(ndr_pipe_t *);
514 
515 int ndr_generic_call_stub(ndr_xa_t *);
516 
517 boolean_t ndr_is_admin(ndr_xa_t *);
518 boolean_t ndr_is_poweruser(ndr_xa_t *);
519 int32_t ndr_native_os(ndr_xa_t *);
520 
521 /* ndr_svc.c */
522 ndr_stub_table_t *ndr_svc_find_stub(ndr_service_t *, int);
523 ndr_service_t *ndr_svc_lookup_name(const char *);
524 ndr_service_t *ndr_svc_lookup_uuid(ndr_uuid_t *, int, ndr_uuid_t *, int);
525 int ndr_svc_register(ndr_service_t *);
526 void ndr_svc_unregister(ndr_service_t *);
527 void ndr_svc_binding_pool_init(ndr_binding_t **, ndr_binding_t pool[], int);
528 ndr_binding_t *ndr_svc_find_binding(ndr_xa_t *, ndr_p_context_id_t);
529 ndr_binding_t *ndr_svc_new_binding(ndr_xa_t *);
530 
531 int ndr_uuid_parse(char *, ndr_uuid_t *);
532 void ndr_uuid_unparse(ndr_uuid_t *, char *);
533 
534 ndr_hdid_t *ndr_hdalloc(const ndr_xa_t *, const void *);
535 void ndr_hdfree(const ndr_xa_t *, const ndr_hdid_t *);
536 ndr_handle_t *ndr_hdlookup(const ndr_xa_t *, const ndr_hdid_t *);
537 void ndr_hdclose(ndr_pipe_t *);
538 
539 ssize_t ndr_uiomove(caddr_t, size_t, enum uio_rw, struct uio *);
540 
541 #ifdef	__cplusplus
542 }
543 #endif
544 
545 #endif	/* _LIBMLRPC_H */
546