xref: /titanic_50/usr/src/lib/smbsrv/libmlrpc/common/libmlrpc.h (revision ba7866cd2cbdf574f47d4e38a1301b90744dd677)
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  */
24 
25 #ifndef	_LIBMLRPC_H
26 #define	_LIBMLRPC_H
27 
28 #include <sys/types.h>
29 #include <sys/uio.h>
30 #include <smbsrv/wintypes.h>
31 #include <smbsrv/ndr.h>
32 #include <smbsrv/smb_sid.h>
33 #include <smbsrv/smb_xdr.h>
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 /*
40  * An MSRPC compatible implementation of OSF DCE RPC.  DCE RPC is derived
41  * from the Apollo Network Computing Architecture (NCA) RPC implementation.
42  *
43  * CAE Specification (1997)
44  * DCE 1.1: Remote Procedure Call
45  * Document Number: C706
46  * The Open Group
47  * ogspecs@opengroup.org
48  *
49  * This implementation is based on the DCE Remote Procedure Call spec with
50  * enhancements to support Unicode strings.  The diagram below shows the
51  * DCE RPC layers compared against ONC SUN RPC.
52  *
53  *	NDR RPC Layers		Sun RPC Layers		Remark
54  *	+---------------+	+---------------+	+---------------+
55  *	+---------------+	+---------------+
56  *	| Application	|	| Application	|	The application
57  *	+---------------+	+---------------+
58  *	| Hand coded    |	| RPCGEN gen'd  |	Where the real
59  *	| client/server |	| client/server |	work happens
60  *	| srvsvc.ndl	|	| *_svc.c *_clnt|
61  *	| srvsvc.c	|	|               |
62  *	+---------------+	+---------------+
63  *	| RPC Library	|	| RPC Library   |	Calls/Return
64  *	| ndr_*.c       |	|               |	Binding/PMAP
65  *	+---------------+	+---------------+
66  *	| RPC Protocol	|	| RPC Protocol  |	Headers, Auth,
67  *	| rpcpdu.ndl    |	|               |
68  *	+---------------+	+---------------+
69  *	| IDL gen'd	|	| RPCGEN gen'd  |	Aggregate
70  *	| NDR stubs	|	| XDR stubs     |	Composition
71  *	| *__ndr.c      |	| *_xdr.c       |
72  *	+---------------+	+---------------+
73  *	| NDR Represen	|	| XDR Represen  |	Byte order, padding
74  *	+---------------+	+---------------+
75  *	| Packet Heaps  |	| Network Conn  |	DCERPC does not talk
76  *	| ndo_*.c       |	| clnt_{tcp,udp}|	directly to network.
77  *	+---------------+	+---------------+
78  *
79  * There are two major differences between the DCE RPC and ONC RPC:
80  *
81  * 1. NDR RPC only generates or processes packets from buffers.  Other
82  *    layers must take care of packet transmission and reception.
83  *    The packet heaps are managed through a simple interface provided
84  *    by the Network Data Representation (NDR) module called ndr_stream_t.
85  *    ndo_*.c modules implement the different flavors (operations) of
86  *    packet heaps.
87  *
88  *    ONC RPC communicates directly with the network.  You have to do
89  *    something special for the RPC packet to be placed in a buffer
90  *    rather than sent to the wire.
91  *
92  * 2. NDR RPC uses application provided heaps to support operations.
93  *    A heap is a single, monolithic chunk of memory that NDR RPC manages
94  *    as it allocates.  When the operation and its result are done, the
95  *    heap is disposed of as a single item.  The transaction, which
96  *    is the anchor of most operations, contains the necessary book-
97  *    keeping for the heap.
98  *
99  *    ONC RPC uses malloc() liberally throughout its run-time system.
100  *    To free results, ONC RPC supports an XDR_FREE operation that
101  *    traverses data structures freeing memory as it goes, whether
102  *    it was malloc'd or not.
103  */
104 
105 /*
106  * Dispatch Return Code (DRC)
107  *
108  *	0x8000	15:01	Set to indicate a fault, clear indicates status
109  *	0x7F00	08:07	Status/Fault specific
110  *	0x00FF	00:08	PTYPE_... of PDU, 0xFF for header
111  */
112 #define	NDR_DRC_OK				0x0000
113 #define	NDR_DRC_MASK_FAULT			0x8000
114 #define	NDR_DRC_MASK_SPECIFIER			0xFF00
115 #define	NDR_DRC_MASK_PTYPE			0x00FF
116 
117 /* Fake PTYPE DRC discriminators */
118 #define	NDR_DRC_PTYPE_RPCHDR(DRC)		((DRC) | 0x00FF)
119 #define	NDR_DRC_PTYPE_API(DRC)			((DRC) | 0x00AA)
120 
121 /* DRC Recognizers */
122 #define	NDR_DRC_IS_OK(DRC)	(((DRC) & NDR_DRC_MASK_SPECIFIER) == 0)
123 #define	NDR_DRC_IS_FAULT(DRC)	(((DRC) & NDR_DRC_MASK_FAULT) != 0)
124 
125 /*
126  * (Un)Marshalling category specifiers
127  */
128 #define	NDR_DRC_FAULT_MODE_MISMATCH		0x8100
129 #define	NDR_DRC_RECEIVED			0x0200
130 #define	NDR_DRC_FAULT_RECEIVED_RUNT		0x8300
131 #define	NDR_DRC_FAULT_RECEIVED_MALFORMED	0x8400
132 #define	NDR_DRC_DECODED				0x0500
133 #define	NDR_DRC_FAULT_DECODE_FAILED		0x8600
134 #define	NDR_DRC_ENCODED				0x0700
135 #define	NDR_DRC_FAULT_ENCODE_FAILED		0x8800
136 #define	NDR_DRC_FAULT_ENCODE_TOO_BIG		0x8900
137 #define	NDR_DRC_SENT				0x0A00
138 #define	NDR_DRC_FAULT_SEND_FAILED		0x8B00
139 
140 /*
141  * Resource category specifier
142  */
143 #define	NDR_DRC_FAULT_RESOURCE_1		0x9100
144 #define	NDR_DRC_FAULT_RESOURCE_2		0x9200
145 
146 /*
147  * Parameters. Usually #define'd with useful alias
148  */
149 #define	NDR_DRC_FAULT_PARAM_0_INVALID		0xC000
150 #define	NDR_DRC_FAULT_PARAM_0_UNIMPLEMENTED	0xD000
151 #define	NDR_DRC_FAULT_PARAM_1_INVALID		0xC100
152 #define	NDR_DRC_FAULT_PARAM_1_UNIMPLEMENTED	0xD100
153 #define	NDR_DRC_FAULT_PARAM_2_INVALID		0xC200
154 #define	NDR_DRC_FAULT_PARAM_2_UNIMPLEMENTED	0xD200
155 #define	NDR_DRC_FAULT_PARAM_3_INVALID		0xC300
156 #define	NDR_DRC_FAULT_PARAM_3_UNIMPLEMENTED	0xD300
157 
158 #define	NDR_DRC_FAULT_OUT_OF_MEMORY		0xF000
159 
160 /* RPCHDR */
161 #define	NDR_DRC_FAULT_RPCHDR_MODE_MISMATCH	0x81FF
162 #define	NDR_DRC_FAULT_RPCHDR_RECEIVED_RUNT	0x83FF
163 #define	NDR_DRC_FAULT_RPCHDR_DECODE_FAILED	0x86FF
164 #define	NDR_DRC_FAULT_RPCHDR_PTYPE_INVALID	0xC0FF	/* PARAM_0_INVALID */
165 #define	NDR_DRC_FAULT_RPCHDR_PTYPE_UNIMPLEMENTED 0xD0FF	/* PARAM_0_UNIMP */
166 
167 /* Request */
168 #define	NDR_DRC_FAULT_REQUEST_PCONT_INVALID	0xC000	/* PARAM_0_INVALID */
169 #define	NDR_DRC_FAULT_REQUEST_OPNUM_INVALID	0xC100	/* PARAM_1_INVALID */
170 
171 /* Bind */
172 #define	NDR_DRC_BINDING_MADE			0x000B	/* OK */
173 #define	NDR_DRC_FAULT_BIND_PCONT_BUSY		0xC00B	/* PARAM_0_INVALID */
174 #define	NDR_DRC_FAULT_BIND_UNKNOWN_SERVICE	0xC10B	/* PARAM_1_INVALID */
175 #define	NDR_DRC_FAULT_BIND_NO_SLOTS		0x910B	/* RESOURCE_1 */
176 
177 /* API */
178 #define	NDR_DRC_FAULT_API_SERVICE_INVALID	0xC0AA	/* PARAM_0_INVALID */
179 #define	NDR_DRC_FAULT_API_BIND_NO_SLOTS		0x91AA	/* RESOURCE_1 */
180 #define	NDR_DRC_FAULT_API_OPNUM_INVALID		0xC1AA	/* PARAM_1_INVALID */
181 
182 struct ndr_xa;
183 struct ndr_client;
184 
185 typedef struct ndr_stub_table {
186 	int		(*func)(void *, struct ndr_xa *);
187 	unsigned short	opnum;
188 } ndr_stub_table_t;
189 
190 typedef struct ndr_service {
191 	char		*name;
192 	char		*desc;
193 	char		*endpoint;
194 	char		*sec_addr_port;
195 	char		*abstract_syntax_uuid;
196 	int		abstract_syntax_version;
197 	char		*transfer_syntax_uuid;
198 	int		transfer_syntax_version;
199 	unsigned	bind_instance_size;
200 	int		(*bind_req)();
201 	int		(*unbind_and_close)();
202 	int		(*call_stub)(struct ndr_xa *);
203 	ndr_typeinfo_t	*interface_ti;
204 	ndr_stub_table_t *stub_table;
205 } ndr_service_t;
206 
207 /*
208  * The list of bindings is anchored at a connection.  Nothing in the
209  * RPC mechanism allocates them.  Binding elements which have service==0
210  * indicate free elements.  When a connection is instantiated, at least
211  * one free binding entry should also be established.  Something like
212  * this should suffice for most (all) situations:
213  *
214  *	struct connection {
215  *		....
216  *		ndr_binding_t *binding_list_head;
217  *		ndr_binding_t binding_pool[N_BINDING_POOL];
218  *		....
219  *	};
220  *
221  *	init_connection(struct connection *conn) {
222  *		....
223  *		ndr_svc_binding_pool_init(&conn->binding_list_head,
224  *		    conn->binding_pool, N_BINDING_POOL);
225  */
226 typedef struct ndr_binding {
227 	struct ndr_binding 	*next;
228 	ndr_p_context_id_t	p_cont_id;
229 	unsigned char		which_side;
230 	struct ndr_client	*clnt;
231 	ndr_service_t		*service;
232 	void 			*instance_specific;
233 } ndr_binding_t;
234 
235 #define	NDR_BIND_SIDE_CLIENT	1
236 #define	NDR_BIND_SIDE_SERVER	2
237 
238 #define	NDR_BINDING_TO_SPECIFIC(BINDING, TYPE) \
239 	((TYPE *) (BINDING)->instance_specific)
240 
241 /*
242  * The binding list space must be provided by the application library
243  * for use by the underlying RPC library.  We need at least two binding
244  * slots per connection.
245  */
246 #define	NDR_N_BINDING_POOL	2
247 
248 typedef struct ndr_pipe {
249 	int			np_fid;
250 	uint32_t		np_txid;
251 	smb_netuserinfo_t	np_user;
252 	char			*np_buf;
253 	struct uio		np_uio;
254 	iovec_t			np_iov;
255 	ndr_fraglist_t		np_frags;
256 	int			np_refcnt;
257 	uint16_t		np_max_xmit_frag;
258 	uint16_t		np_max_recv_frag;
259 	ndr_binding_t		*np_binding;
260 	ndr_binding_t		np_binding_pool[NDR_N_BINDING_POOL];
261 } ndr_pipe_t;
262 
263 typedef struct ndr_pipe_info {
264 	uint32_t		npi_fid;
265 	uint32_t		npi_permissions;
266 	uint32_t		npi_num_locks;
267 	char			npi_pathname[MAXPATHLEN];
268 	char			npi_username[MAXNAMELEN];
269 } ndr_pipe_info_t;
270 
271 /*
272  * Number of bytes required to align SIZE on the next dword/4-byte
273  * boundary.
274  */
275 #define	NDR_ALIGN4(SIZE)	((4 - (SIZE)) & 3);
276 
277 /*
278  * DCE RPC strings (CAE section 14.3.4) are represented as varying or varying
279  * and conformant one-dimensional arrays. Characters can be single-byte
280  * or multi-byte as long as all characters conform to a fixed element size,
281  * i.e. UCS-2 is okay but UTF-8 is not a valid DCE RPC string format. The
282  * string is terminated by a null character of the appropriate element size.
283  *
284  * MSRPC strings should always be varying/conformant and not null terminated.
285  * This format uses the size_is, first_is and length_is attributes (CAE
286  * section 4.2.18).
287  *
288  *	typedef struct string {
289  *		DWORD size_is;
290  *		DWORD first_is;
291  *		DWORD length_is;
292  *		wchar_t string[ANY_SIZE_ARRAY];
293  *	} string_t;
294  *
295  * The size_is attribute is used to specify the number of data elements in
296  * each dimension of an array.
297  *
298  * The first_is attribute is used to define the lower bound for significant
299  * elements in each dimension of an array. For strings this is always 0.
300  *
301  * The length_is attribute is used to define the number of significant
302  * elements in each dimension of an array. For strings this is typically
303  * the same as size_is. Although it might be (size_is - 1) if the string
304  * is null terminated.
305  *
306  *   4 bytes   4 bytes   4 bytes  2bytes 2bytes 2bytes 2bytes
307  * +---------+---------+---------+------+------+------+------+
308  * |size_is  |first_is |length_is| char | char | char | char |
309  * +---------+---------+---------+------+------+------+------+
310  *
311  * Unfortunately, not all MSRPC Unicode strings are null terminated, which
312  * means that the recipient has to manually null-terminate the string after
313  * it has been unmarshalled.  There may be a wide-char pad following a
314  * string, and it may sometimes contains zero, but it's not guaranteed.
315  *
316  * To deal with this, MSRPC sometimes uses an additional wrapper with two
317  * more fields, as shown below.
318  *	length: the array length in bytes excluding terminating null bytes
319  *	maxlen: the array length in bytes including null terminator bytes
320  *	LPTSTR: converted to a string_t by NDR
321  *
322  * typedef struct ms_string {
323  *		WORD length;
324  *		WORD maxlen;
325  *		LPTSTR str;
326  * } ms_string_t;
327  */
328 typedef struct ndr_mstring {
329 	uint16_t length;
330 	uint16_t allosize;
331 	LPTSTR str;
332 } ndr_mstring_t;
333 
334 /*
335  * A number of heap areas are used during marshalling and unmarshalling.
336  * Under some circumstances these areas can be discarded by the library
337  * code, i.e. on the server side before returning to the client and on
338  * completion of a client side bind.  In the case of a client side RPC
339  * call, these areas must be preserved after an RPC returns to give the
340  * caller time to take a copy of the data.  In this case the client must
341  * call ndr_clnt_free_heap to free the memory.
342  *
343  * The heap management data definition looks a bit like this:
344  *
345  * heap -> +---------------+     +------------+
346  *         | iovec[0].base | --> | data block |
347  *         | iovec[0].len  |     +------------+
348  *         +---------------+
349  *                ::
350  *                ::
351  * iov  -> +---------------+     +------------+
352  *         | iovec[n].base | --> | data block |
353  *         | iovec[n].len  |     +------------+
354  *         +---------------+     ^            ^
355  *                               |            |
356  *    next ----------------------+            |
357  *    top  -----------------------------------+
358  *
359  */
360 
361 /*
362  * Setting MAXIOV to 384 will use ((8 * 384) + 16) = 3088 bytes
363  * of the first heap block.
364  */
365 #define	NDR_HEAP_MAXIOV		384
366 #define	NDR_HEAP_BLKSZ		8192
367 
368 typedef struct ndr_heap {
369 	struct iovec iovec[NDR_HEAP_MAXIOV];
370 	struct iovec *iov;
371 	int iovcnt;
372 	char *top;
373 	char *next;
374 } ndr_heap_t;
375 
376 /*
377  * Alternate varying/conformant string definition
378  * - for non-null-terminated strings.
379  */
380 typedef struct ndr_vcs {
381 	/*
382 	 * size_is (actually a copy of length_is) will
383 	 * be inserted here by the marshalling library.
384 	 */
385 	uint32_t vc_first_is;
386 	uint32_t vc_length_is;
387 	uint16_t buffer[ANY_SIZE_ARRAY];
388 } ndr_vcs_t;
389 
390 typedef struct ndr_vcstr {
391 	uint16_t wclen;
392 	uint16_t wcsize;
393 	ndr_vcs_t *vcs;
394 } ndr_vcstr_t;
395 
396 typedef struct ndr_vcb {
397 	/*
398 	 * size_is (actually a copy of length_is) will
399 	 * be inserted here by the marshalling library.
400 	 */
401 	uint32_t vc_first_is;
402 	uint32_t vc_length_is;
403 	uint8_t buffer[ANY_SIZE_ARRAY];
404 } ndr_vcb_t;
405 
406 typedef struct ndr_vcbuf {
407 	uint16_t len;
408 	uint16_t size;
409 	ndr_vcb_t *vcb;
410 } ndr_vcbuf_t;
411 
412 ndr_heap_t *ndr_heap_create(void);
413 void ndr_heap_destroy(ndr_heap_t *);
414 void *ndr_heap_malloc(ndr_heap_t *, unsigned);
415 void *ndr_heap_strdup(ndr_heap_t *, const char *);
416 int ndr_heap_mstring(ndr_heap_t *, const char *, ndr_mstring_t *);
417 void ndr_heap_mkvcs(ndr_heap_t *, char *, ndr_vcstr_t *);
418 void ndr_heap_mkvcb(ndr_heap_t *, uint8_t *, uint32_t, ndr_vcbuf_t *);
419 smb_sid_t *ndr_heap_siddup(ndr_heap_t *, smb_sid_t *);
420 int ndr_heap_used(ndr_heap_t *);
421 int ndr_heap_avail(ndr_heap_t *);
422 
423 #define	NDR_MALLOC(XA, SZ)	ndr_heap_malloc((XA)->heap, SZ)
424 #define	NDR_NEW(XA, T)		ndr_heap_malloc((XA)->heap, sizeof (T))
425 #define	NDR_NEWN(XA, T, N)	ndr_heap_malloc((XA)->heap, sizeof (T)*(N))
426 #define	NDR_STRDUP(XA, S)	ndr_heap_strdup((XA)->heap, (S))
427 #define	NDR_MSTRING(XA, S, OUT)	ndr_heap_mstring((XA)->heap, (S), (OUT))
428 #define	NDR_SIDDUP(XA, S)	ndr_heap_siddup((XA)->heap, (S))
429 
430 typedef struct ndr_xa {
431 	int			fid;
432 	unsigned short		ptype;		/* high bits special */
433 	unsigned short		opnum;
434 	ndr_stream_t		recv_nds;
435 	ndr_hdr_t		recv_hdr;
436 	ndr_stream_t		send_nds;
437 	ndr_hdr_t		send_hdr;
438 	ndr_binding_t		*binding;	/* what we're using */
439 	ndr_binding_t		*binding_list;	/* from connection */
440 	ndr_heap_t		*heap;
441 	ndr_pipe_t		*pipe;
442 } ndr_xa_t;
443 
444 /*
445  * 20-byte opaque id used by various RPC services.
446  */
447 CONTEXT_HANDLE(ndr_hdid) ndr_hdid_t;
448 
449 typedef struct ndr_client {
450 	int (*xa_init)(struct ndr_client *, ndr_xa_t *);
451 	int (*xa_exchange)(struct ndr_client *, ndr_xa_t *);
452 	int (*xa_read)(struct ndr_client *, ndr_xa_t *);
453 	void (*xa_preserve)(struct ndr_client *, ndr_xa_t *);
454 	void (*xa_destruct)(struct ndr_client *, ndr_xa_t *);
455 	void (*xa_release)(struct ndr_client *);
456 
457 	int			fid;
458 	ndr_hdid_t		*handle;
459 	ndr_binding_t		*binding;
460 	ndr_binding_t		*binding_list;
461 	ndr_binding_t		binding_pool[NDR_N_BINDING_POOL];
462 
463 	boolean_t		nonull;
464 	boolean_t		heap_preserved;
465 	ndr_heap_t		*heap;
466 	ndr_stream_t		*recv_nds;
467 	ndr_stream_t		*send_nds;
468 
469 	uint32_t		next_call_id;
470 	unsigned		next_p_cont_id;
471 } ndr_client_t;
472 
473 typedef struct ndr_handle {
474 	ndr_hdid_t		nh_id;
475 	struct ndr_handle	*nh_next;
476 	int			nh_fid;
477 	const ndr_service_t	*nh_svc;
478 	ndr_client_t		*nh_clnt;
479 	void			*nh_data;
480 	void			(*nh_data_free)(void *);
481 } ndr_handle_t;
482 
483 #define	NDR_PDU_SIZE_HINT_DEFAULT	(16*1024)
484 #define	NDR_BUF_MAGIC			0x4E425546	/* NBUF */
485 
486 typedef struct ndr_buf {
487 	uint32_t		nb_magic;
488 	ndr_stream_t		nb_nds;
489 	ndr_heap_t		*nb_heap;
490 	ndr_typeinfo_t		*nb_ti;
491 } ndr_buf_t;
492 
493 /* ndr_ops.c */
494 int nds_initialize(ndr_stream_t *, unsigned, int, ndr_heap_t *);
495 void nds_finalize(ndr_stream_t *, ndr_fraglist_t *);
496 void nds_destruct(ndr_stream_t *);
497 void nds_show_state(ndr_stream_t *);
498 
499 /* ndr_client.c */
500 int ndr_clnt_bind(ndr_client_t *, const char *, ndr_binding_t **);
501 int ndr_clnt_call(ndr_binding_t *, int, void *);
502 void ndr_clnt_free_heap(ndr_client_t *);
503 
504 /* ndr_marshal.c */
505 ndr_buf_t *ndr_buf_init(ndr_typeinfo_t *);
506 void ndr_buf_fini(ndr_buf_t *);
507 int ndr_buf_decode(ndr_buf_t *, unsigned, unsigned, const char *data, size_t,
508     void *);
509 int ndr_decode_call(ndr_xa_t *, void *);
510 int ndr_encode_return(ndr_xa_t *, void *);
511 int ndr_encode_call(ndr_xa_t *, void *);
512 int ndr_decode_return(ndr_xa_t *, void *);
513 int ndr_decode_pdu_hdr(ndr_xa_t *);
514 int ndr_encode_pdu_hdr(ndr_xa_t *);
515 void ndr_decode_frag_hdr(ndr_stream_t *, ndr_common_header_t *);
516 void ndr_remove_frag_hdr(ndr_stream_t *);
517 void ndr_show_hdr(ndr_common_header_t *);
518 unsigned ndr_bind_ack_hdr_size(ndr_xa_t *);
519 unsigned ndr_alter_context_rsp_hdr_size(void);
520 
521 /* ndr_server.c */
522 int ndr_pipe_open(int, uint8_t *, uint32_t);
523 int ndr_pipe_close(int);
524 int ndr_pipe_read(int, uint8_t *, uint32_t *, uint32_t *);
525 int ndr_pipe_write(int, uint8_t *, uint32_t);
526 void *ndr_pipe_transact(void *);
527 
528 int ndr_generic_call_stub(ndr_xa_t *);
529 
530 boolean_t ndr_is_admin(ndr_xa_t *);
531 boolean_t ndr_is_poweruser(ndr_xa_t *);
532 int32_t ndr_native_os(ndr_xa_t *);
533 
534 /* ndr_svc.c */
535 ndr_stub_table_t *ndr_svc_find_stub(ndr_service_t *, int);
536 ndr_service_t *ndr_svc_lookup_name(const char *);
537 ndr_service_t *ndr_svc_lookup_uuid(ndr_uuid_t *, int, ndr_uuid_t *, int);
538 int ndr_svc_register(ndr_service_t *);
539 void ndr_svc_unregister(ndr_service_t *);
540 void ndr_svc_binding_pool_init(ndr_binding_t **, ndr_binding_t pool[], int);
541 ndr_binding_t *ndr_svc_find_binding(ndr_xa_t *, ndr_p_context_id_t);
542 ndr_binding_t *ndr_svc_new_binding(ndr_xa_t *);
543 
544 int ndr_uuid_parse(char *, ndr_uuid_t *);
545 void ndr_uuid_unparse(ndr_uuid_t *, char *);
546 
547 ndr_hdid_t *ndr_hdalloc(const ndr_xa_t *, const void *);
548 void ndr_hdfree(const ndr_xa_t *, const ndr_hdid_t *);
549 ndr_handle_t *ndr_hdlookup(const ndr_xa_t *, const ndr_hdid_t *);
550 void ndr_hdclose(int fid);
551 
552 ssize_t ndr_uiomove(caddr_t, size_t, enum uio_rw, struct uio *);
553 
554 #ifdef	__cplusplus
555 }
556 #endif
557 
558 #endif	/* _LIBMLRPC_H */
559