1 /* $NetBSD: svc.h,v 1.17 2000/06/02 22:57:56 fvdl Exp $ */
4 * Copyright (c) 2009, Sun Microsystems, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 * - Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 * - Neither the name of Sun Microsystems, Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
30 * from: @(#)svc.h 1.35 88/12/17 SMI
31 * from: @(#)svc.h 1.27 94/04/25 SMI
36 * svc.h, Server-side remote procedure call interface.
38 * Copyright (C) 1986-1993 by Sun Microsystems, Inc.
43 #include <sys/cdefs.h>
46 #include <sys/queue.h>
47 #include <sys/_lock.h>
48 #include <sys/_mutex.h>
50 #include <sys/condvar.h>
51 #include <sys/sysctl.h>
55 * This interface must manage two items concerning remote procedure calling:
57 * 1) An arbitrary number of transport connections upon which rpc requests
58 * are received. The two most notable transports are TCP and UDP; they are
59 * created and registered by routines in svc_tcp.c and svc_udp.c, respectively;
60 * they in turn call xprt_register and xprt_unregister.
62 * 2) An arbitrary number of locally registered services. Services are
63 * described by the following four data: program number, version number,
64 * "service dispatch" function, a transport handle, and a boolean that
65 * indicates whether or not the exported program should be registered with a
66 * local binder service; if true the program's number and version and the
67 * port number from the transport handle are registered with the binder.
68 * These data are registered with the rpc svc system via svc_register.
70 * A service's dispatch function is called whenever an rpc request comes in
71 * on a transport. The request's program and version numbers must match
72 * those of the registered service. The dispatch function is passed two
73 * parameters, struct svc_req * and SVCXPRT *, defined below.
77 * Service control requests
79 #define SVCGET_VERSQUIET 1
80 #define SVCSET_VERSQUIET 2
81 #define SVCGET_CONNMAXREC 3
82 #define SVCSET_CONNMAXREC 4
85 * Operations for rpc_control().
87 #define RPC_SVC_CONNMAXREC_SET 0 /* set max rec size, enable nonblock */
88 #define RPC_SVC_CONNMAXREC_GET 1
101 /* receive incoming requests */
102 bool_t (*xp_recv)(struct __rpc_svcxprt *, struct rpc_msg *,
103 struct sockaddr **, struct mbuf **);
104 /* get transport status */
105 enum xprt_stat (*xp_stat)(struct __rpc_svcxprt *);
107 bool_t (*xp_reply)(struct __rpc_svcxprt *, struct rpc_msg *,
108 struct sockaddr *, struct mbuf *);
109 /* destroy this struct */
110 void (*xp_destroy)(struct __rpc_svcxprt *);
111 /* catch-all function */
112 bool_t (*xp_control)(struct __rpc_svcxprt *, const u_int, void *);
114 /* receive incoming requests */
115 bool_t (*xp_recv)(struct __rpc_svcxprt *, struct rpc_msg *);
116 /* get transport status */
117 enum xprt_stat (*xp_stat)(struct __rpc_svcxprt *);
119 bool_t (*xp_getargs)(struct __rpc_svcxprt *, xdrproc_t, void *);
121 bool_t (*xp_reply)(struct __rpc_svcxprt *, struct rpc_msg *);
122 /* free mem allocated for args */
123 bool_t (*xp_freeargs)(struct __rpc_svcxprt *, xdrproc_t, void *);
124 /* destroy this struct */
125 void (*xp_destroy)(struct __rpc_svcxprt *);
131 /* catch-all function */
132 bool_t (*xp_control)(struct __rpc_svcxprt *, const u_int, void *);
137 struct __rpc_svcpool;
138 struct __rpc_svcthread;
142 * Server side transport handle. In the kernel, transports have a
143 * reference count which tracks the number of currently assigned
144 * worker threads plus one for the service pool's reference.
146 typedef struct __rpc_svcxprt {
148 volatile u_int xp_refs;
150 struct __rpc_svcpool *xp_pool; /* owning pool (see below) */
151 TAILQ_ENTRY(__rpc_svcxprt) xp_link;
152 TAILQ_ENTRY(__rpc_svcxprt) xp_alink;
153 bool_t xp_registered; /* xprt_register has been called */
154 bool_t xp_active; /* xprt_active has been called */
155 struct __rpc_svcthread *xp_thread; /* assigned service thread */
156 struct socket* xp_socket;
157 const struct xp_ops *xp_ops;
158 char *xp_netid; /* network token */
159 struct sockaddr_storage xp_ltaddr; /* local transport address */
160 struct sockaddr_storage xp_rtaddr; /* remote transport address */
161 void *xp_p1; /* private: for use by svc ops */
162 void *xp_p2; /* private: for use by svc ops */
163 void *xp_p3; /* private: for use by svc lib */
164 int xp_type; /* transport type */
165 int xp_idletimeout; /* idle time before closing */
166 time_t xp_lastactive; /* time of last RPC */
167 u_int64_t xp_sockref; /* set by nfsv4 to identify socket */
168 int xp_upcallset; /* socket upcall is set up */
171 u_short xp_port; /* associated port number */
172 const struct xp_ops *xp_ops;
173 int xp_addrlen; /* length of remote address */
174 struct sockaddr_in xp_raddr; /* remote addr. (backward ABI compat) */
175 /* XXX - fvdl stick this here for ABI backward compat reasons */
176 const struct xp_ops2 *xp_ops2;
177 char *xp_tp; /* transport provider device name */
178 char *xp_netid; /* network token */
179 struct netbuf xp_ltaddr; /* local transport address */
180 struct netbuf xp_rtaddr; /* remote transport address */
181 struct opaque_auth xp_verf; /* raw response verifier */
182 void *xp_p1; /* private: for use by svc ops */
183 void *xp_p2; /* private: for use by svc ops */
184 void *xp_p3; /* private: for use by svc lib */
185 int xp_type; /* transport type */
190 * Interface to server-side authentication flavors.
192 typedef struct __rpc_svcauth {
193 struct svc_auth_ops {
195 int (*svc_ah_wrap)(struct __rpc_svcauth *, struct mbuf **);
196 int (*svc_ah_unwrap)(struct __rpc_svcauth *, struct mbuf **);
197 void (*svc_ah_release)(struct __rpc_svcauth *);
199 int (*svc_ah_wrap)(struct __rpc_svcauth *, XDR *,
201 int (*svc_ah_unwrap)(struct __rpc_svcauth *, XDR *,
205 void *svc_ah_private;
209 * Server transport extensions (accessed via xp_p3).
211 typedef struct __rpc_svcxprt_ext {
212 int xp_flags; /* versquiet */
213 SVCAUTH xp_auth; /* interface to auth methods */
220 * Each entry represents a set of procedures (an rpc program).
221 * The dispatch routine takes request structs and runs the
222 * apropriate procedure.
225 TAILQ_ENTRY(svc_callout) sc_link;
229 void (*sc_dispatch)(struct svc_req *, SVCXPRT *);
231 TAILQ_HEAD(svc_callout_list, svc_callout);
233 struct __rpc_svcthread;
239 STAILQ_ENTRY(svc_req) rq_link; /* list of requests for a thread */
240 struct __rpc_svcthread *rq_thread; /* thread which is to execute this */
241 uint32_t rq_xid; /* RPC transaction ID */
242 uint32_t rq_prog; /* service program number */
243 uint32_t rq_vers; /* service protocol version */
244 uint32_t rq_proc; /* the desired procedure */
245 size_t rq_size; /* space used by request */
246 struct mbuf *rq_args; /* XDR-encoded procedure arguments */
247 struct opaque_auth rq_cred; /* raw creds from the wire */
248 struct opaque_auth rq_verf; /* verifier for the reply */
249 void *rq_clntcred; /* read only cooked cred */
250 SVCAUTH rq_auth; /* interface to auth methods */
251 SVCXPRT *rq_xprt; /* associated transport */
252 struct sockaddr *rq_addr; /* reply address or NULL if connected */
253 void *rq_p1; /* application workspace */
254 int rq_p2; /* application workspace */
255 uint64_t rq_p3; /* application workspace */
256 char rq_credarea[3*MAX_AUTH_BYTES];
258 STAILQ_HEAD(svc_reqlist, svc_req);
260 #define svc_getrpccaller(rq) \
261 ((rq)->rq_addr ? (rq)->rq_addr : \
262 (struct sockaddr *) &(rq)->rq_xprt->xp_rtaddr)
265 * This structure is used to manage a thread which is executing
266 * requests from a service pool. A service thread is in one of three
269 * SVCTHREAD_SLEEPING waiting for a request to process
270 * SVCTHREAD_ACTIVE processing a request
271 * SVCTHREAD_EXITING exiting after finishing current request
273 * Threads which have no work to process sleep on the pool's sp_active
274 * list. When a transport becomes active, it is assigned a service
275 * thread to read and execute pending RPCs.
277 typedef struct __rpc_svcthread {
278 SVCXPRT *st_xprt; /* transport we are processing */
279 struct svc_reqlist st_reqs; /* RPC requests to execute */
280 int st_reqcount; /* number of queued reqs */
281 int st_idle; /* thread is on idle list */
282 struct cv st_cond; /* sleeping for work */
283 LIST_ENTRY(__rpc_svcthread) st_link; /* all threads list */
284 LIST_ENTRY(__rpc_svcthread) st_ilink; /* idle threads list */
285 LIST_ENTRY(__rpc_svcthread) st_alink; /* application thread list */
287 LIST_HEAD(svcthread_list, __rpc_svcthread);
290 * In the kernel, we can't use global variables to store lists of
291 * transports etc. since otherwise we could not have two unrelated RPC
292 * services running, each on its own thread. We solve this by
293 * importing a tiny part of a Solaris kernel concept, SVCPOOL.
295 * A service pool contains a set of transports and service callbacks
296 * for a set of related RPC services. The pool handle should be passed
297 * when creating new transports etc. Future work may include extending
298 * this to support something similar to the Solaris multi-threaded RPC
301 TAILQ_HEAD(svcxprt_list, __rpc_svcxprt);
303 SVCPOOL_INIT, /* svc_run not called yet */
304 SVCPOOL_ACTIVE, /* normal running state */
305 SVCPOOL_THREADWANTED, /* new service thread requested */
306 SVCPOOL_THREADSTARTING, /* new service thread started */
307 SVCPOOL_CLOSING /* svc_exit called */
309 typedef SVCTHREAD *pool_assign_fn(SVCTHREAD *, struct svc_req *);
310 typedef void pool_done_fn(SVCTHREAD *, struct svc_req *);
311 typedef struct __rpc_svcpool {
312 struct mtx sp_lock; /* protect the transport lists */
313 const char *sp_name; /* pool name (e.g. "nfsd", "NLM" */
314 enum svcpool_state sp_state; /* current pool state */
315 struct proc *sp_proc; /* process which is in svc_run */
316 struct svcxprt_list sp_xlist; /* all transports in the pool */
317 struct svcxprt_list sp_active; /* transports needing service */
318 struct svc_callout_list sp_callouts; /* (prog,vers)->dispatch list */
319 struct svcthread_list sp_threads; /* service threads */
320 struct svcthread_list sp_idlethreads; /* idle service threads */
321 int sp_minthreads; /* minimum service thread count */
322 int sp_maxthreads; /* maximum service thread count */
323 int sp_threadcount; /* current service thread count */
324 time_t sp_lastcreatetime; /* when we last started a thread */
325 time_t sp_lastidlecheck; /* when we last checked idle transports */
328 * Hooks to allow an application to control request to thread
331 pool_assign_fn *sp_assign;
332 pool_done_fn *sp_done;
335 * These variables are used to put an upper bound on the
336 * amount of memory used by RPC requests which are queued
337 * waiting for execution.
339 unsigned int sp_space_low;
340 unsigned int sp_space_high;
341 unsigned int sp_space_used;
342 unsigned int sp_space_used_highest;
343 bool_t sp_space_throttled;
344 int sp_space_throttle_count;
346 struct replay_cache *sp_rcache; /* optional replay cache */
347 struct sysctl_ctx_list sp_sysctl;
356 uint32_t rq_prog; /* service program number */
357 uint32_t rq_vers; /* service protocol version */
358 uint32_t rq_proc; /* the desired procedure */
359 struct opaque_auth rq_cred; /* raw creds from the wire */
360 void *rq_clntcred; /* read only cooked cred */
361 SVCXPRT *rq_xprt; /* associated transport */
365 * Approved way of getting address of caller
367 #define svc_getrpccaller(x) (&(x)->xp_rtaddr)
372 * Operations defined on an SVCXPRT handle
375 * struct rpc_msg *msg;
381 #define SVC_ACQUIRE(xprt) \
382 refcount_acquire(&(xprt)->xp_refs)
384 #define SVC_RELEASE(xprt) \
385 if (refcount_release(&(xprt)->xp_refs)) \
388 #define SVC_RECV(xprt, msg, addr, args) \
389 (*(xprt)->xp_ops->xp_recv)((xprt), (msg), (addr), (args))
391 #define SVC_STAT(xprt) \
392 (*(xprt)->xp_ops->xp_stat)(xprt)
394 #define SVC_REPLY(xprt, msg, addr, m) \
395 (*(xprt)->xp_ops->xp_reply) ((xprt), (msg), (addr), (m))
397 #define SVC_DESTROY(xprt) \
398 (*(xprt)->xp_ops->xp_destroy)(xprt)
400 #define SVC_CONTROL(xprt, rq, in) \
401 (*(xprt)->xp_ops->xp_control)((xprt), (rq), (in))
405 #define SVC_RECV(xprt, msg) \
406 (*(xprt)->xp_ops->xp_recv)((xprt), (msg))
407 #define svc_recv(xprt, msg) \
408 (*(xprt)->xp_ops->xp_recv)((xprt), (msg))
410 #define SVC_STAT(xprt) \
411 (*(xprt)->xp_ops->xp_stat)(xprt)
412 #define svc_stat(xprt) \
413 (*(xprt)->xp_ops->xp_stat)(xprt)
415 #define SVC_GETARGS(xprt, xargs, argsp) \
416 (*(xprt)->xp_ops->xp_getargs)((xprt), (xargs), (argsp))
417 #define svc_getargs(xprt, xargs, argsp) \
418 (*(xprt)->xp_ops->xp_getargs)((xprt), (xargs), (argsp))
420 #define SVC_REPLY(xprt, msg) \
421 (*(xprt)->xp_ops->xp_reply) ((xprt), (msg))
422 #define svc_reply(xprt, msg) \
423 (*(xprt)->xp_ops->xp_reply) ((xprt), (msg))
425 #define SVC_FREEARGS(xprt, xargs, argsp) \
426 (*(xprt)->xp_ops->xp_freeargs)((xprt), (xargs), (argsp))
427 #define svc_freeargs(xprt, xargs, argsp) \
428 (*(xprt)->xp_ops->xp_freeargs)((xprt), (xargs), (argsp))
430 #define SVC_DESTROY(xprt) \
431 (*(xprt)->xp_ops->xp_destroy)(xprt)
432 #define svc_destroy(xprt) \
433 (*(xprt)->xp_ops->xp_destroy)(xprt)
435 #define SVC_CONTROL(xprt, rq, in) \
436 (*(xprt)->xp_ops2->xp_control)((xprt), (rq), (in))
440 #define SVC_EXT(xprt) \
441 ((SVCXPRT_EXT *) xprt->xp_p3)
443 #define SVC_AUTH(xprt) \
444 (SVC_EXT(xprt)->xp_auth)
447 * Operations defined on an SVCAUTH handle
450 #define SVCAUTH_WRAP(auth, mp) \
451 ((auth)->svc_ah_ops->svc_ah_wrap(auth, mp))
452 #define SVCAUTH_UNWRAP(auth, mp) \
453 ((auth)->svc_ah_ops->svc_ah_unwrap(auth, mp))
454 #define SVCAUTH_RELEASE(auth) \
455 ((auth)->svc_ah_ops->svc_ah_release(auth))
457 #define SVCAUTH_WRAP(auth, xdrs, xfunc, xwhere) \
458 ((auth)->svc_ah_ops->svc_ah_wrap(auth, xdrs, xfunc, xwhere))
459 #define SVCAUTH_UNWRAP(auth, xdrs, xfunc, xwhere) \
460 ((auth)->svc_ah_ops->svc_ah_unwrap(auth, xdrs, xfunc, xwhere))
464 * Service registration
466 * svc_reg(xprt, prog, vers, dispatch, nconf)
467 * const SVCXPRT *xprt;
468 * const rpcprog_t prog;
469 * const rpcvers_t vers;
470 * const void (*dispatch)();
471 * const struct netconfig *nconf;
475 extern bool_t svc_reg(SVCXPRT *, const rpcprog_t, const rpcvers_t,
476 void (*)(struct svc_req *, SVCXPRT *),
477 const struct netconfig *);
481 * Service un-registration
483 * svc_unreg(prog, vers)
484 * const rpcprog_t prog;
485 * const rpcvers_t vers;
490 extern void svc_unreg(SVCPOOL *, const rpcprog_t, const rpcvers_t);
492 extern void svc_unreg(const rpcprog_t, const rpcvers_t);
497 * Transport registration.
499 * xprt_register(xprt)
503 extern void xprt_register(SVCXPRT *);
507 * Transport un-register
509 * xprt_unregister(xprt)
513 extern void xprt_unregister(SVCXPRT *);
514 extern void __xprt_unregister_unlocked(SVCXPRT *);
520 * Called when a transport has pending requests.
523 extern void xprt_active(SVCXPRT *);
524 extern void xprt_inactive(SVCXPRT *);
525 extern void xprt_inactive_locked(SVCXPRT *);
526 extern void xprt_inactive_self(SVCXPRT *);
532 * When the service routine is called, it must first check to see if it
533 * knows about the procedure; if not, it should call svcerr_noproc
534 * and return. If so, it should deserialize its arguments via
535 * SVC_GETARGS (defined above). If the deserialization does not work,
536 * svcerr_decode should be called followed by a return. Successful
537 * decoding of the arguments should be followed the execution of the
538 * procedure's code and a call to svc_sendreply.
540 * Also, if the service refuses to execute the procedure due to too-
541 * weak authentication parameters, svcerr_weakauth should be called.
542 * Note: do not confuse access-control failure with weak authentication!
544 * NB: In pure implementations of rpc, the caller always waits for a reply
545 * msg. This message is sent when svc_sendreply is called.
546 * Therefore pure service implementations should always call
547 * svc_sendreply even if the function logically returns void; use
548 * xdr.h - xdr_void for the xdr routine. HOWEVER, tcp based rpc allows
549 * for the abuse of pure rpc via batched calling or pipelining. In the
550 * case of a batched call, svc_sendreply should NOT be called since
551 * this would send a return message, which is what batching tries to avoid.
552 * It is the service/protocol writer's responsibility to know which calls are
553 * batched and which are not. Warning: responding to batch calls may
554 * deadlock the caller and server processes!
559 extern bool_t svc_sendreply(struct svc_req *, xdrproc_t, void *);
560 extern bool_t svc_sendreply_mbuf(struct svc_req *, struct mbuf *);
561 extern void svcerr_decode(struct svc_req *);
562 extern void svcerr_weakauth(struct svc_req *);
563 extern void svcerr_noproc(struct svc_req *);
564 extern void svcerr_progvers(struct svc_req *, rpcvers_t, rpcvers_t);
565 extern void svcerr_auth(struct svc_req *, enum auth_stat);
566 extern void svcerr_noprog(struct svc_req *);
567 extern void svcerr_systemerr(struct svc_req *);
569 extern bool_t svc_sendreply(SVCXPRT *, xdrproc_t, void *);
570 extern void svcerr_decode(SVCXPRT *);
571 extern void svcerr_weakauth(SVCXPRT *);
572 extern void svcerr_noproc(SVCXPRT *);
573 extern void svcerr_progvers(SVCXPRT *, rpcvers_t, rpcvers_t);
574 extern void svcerr_auth(SVCXPRT *, enum auth_stat);
575 extern void svcerr_noprog(SVCXPRT *);
576 extern void svcerr_systemerr(SVCXPRT *);
578 extern int rpc_reg(rpcprog_t, rpcvers_t, rpcproc_t,
579 char *(*)(char *), xdrproc_t, xdrproc_t,
584 * Lowest level dispatching -OR- who owns this process anyway.
585 * Somebody has to wait for incoming requests and then call the correct
586 * service routine. The routine svc_run does infinite waiting; i.e.,
587 * svc_run never returns.
588 * Since another (co-existant) package may wish to selectively wait for
589 * incoming calls or other events outside of the rpc architecture, the
590 * routine svc_getreq is provided. It must be passed readfds, the
591 * "in-place" results of a select system call (see select, section 2).
596 * Global keeper of rpc service descriptors in use
597 * dynamic; must be inspected before each call to select
599 extern int svc_maxfd;
601 extern fd_set svc_fdset;
602 #define svc_fds svc_fdset.fds_bits[0] /* compatibility */
605 #endif /* def FD_SETSIZE */
609 * a small program implemented by the svc_rpc implementation itself;
610 * also see clnt.h for protocol numbers.
613 extern void rpctest_service(void);
617 extern SVCXPRT *svc_xprt_alloc(void);
618 extern void svc_xprt_free(SVCXPRT *);
620 extern void svc_getreq(int);
621 extern void svc_getreqset(fd_set *);
622 extern void svc_getreq_common(int);
624 extern void svc_getreq_poll(struct pollfd *, int);
625 extern void svc_run(void);
626 extern void svc_exit(void);
628 extern void svc_run(SVCPOOL *);
629 extern void svc_exit(SVCPOOL *);
630 extern bool_t svc_getargs(struct svc_req *, xdrproc_t, void *);
631 extern bool_t svc_freeargs(struct svc_req *, xdrproc_t, void *);
632 extern void svc_freereq(struct svc_req *);
638 * Socket to use on svcxxx_create call to get default socket
640 #define RPC_ANYSOCK -1
641 #define RPC_ANYFD RPC_ANYSOCK
644 * These are the existing service side transport implementations
652 * Create a new service pool.
654 extern SVCPOOL* svcpool_create(const char *name,
655 struct sysctl_oid_list *sysctl_base);
658 * Destroy a service pool, including all registered transports.
660 extern void svcpool_destroy(SVCPOOL *pool);
663 * Transport independent svc_create routine.
665 extern int svc_create(SVCPOOL *, void (*)(struct svc_req *, SVCXPRT *),
666 const rpcprog_t, const rpcvers_t, const char *);
668 * void (*dispatch)(); -- dispatch routine
669 * const rpcprog_t prognum; -- program number
670 * const rpcvers_t versnum; -- version number
671 * const char *nettype; -- network type
676 * Generic server creation routine. It takes a netconfig structure
677 * instead of a nettype.
680 extern SVCXPRT *svc_tp_create(SVCPOOL *, void (*)(struct svc_req *, SVCXPRT *),
681 const rpcprog_t, const rpcvers_t, const char *uaddr,
682 const struct netconfig *);
684 * void (*dispatch)(); -- dispatch routine
685 * const rpcprog_t prognum; -- program number
686 * const rpcvers_t versnum; -- version number
687 * const char *uaddr; -- universal address of service
688 * const struct netconfig *nconf; -- netconfig structure
691 extern SVCXPRT *svc_dg_create(SVCPOOL *, struct socket *,
692 const size_t, const size_t);
694 * struct socket *; -- open connection
695 * const size_t sendsize; -- max send size
696 * const size_t recvsize; -- max recv size
699 extern SVCXPRT *svc_vc_create(SVCPOOL *, struct socket *,
700 const size_t, const size_t);
702 * struct socket *; -- open connection
703 * const size_t sendsize; -- max send size
704 * const size_t recvsize; -- max recv size
707 extern SVCXPRT *svc_vc_create_backchannel(SVCPOOL *);
710 * Generic TLI create routine
712 extern SVCXPRT *svc_tli_create(SVCPOOL *, struct socket *,
713 const struct netconfig *, const struct t_bind *, const size_t, const size_t);
715 * struct socket * so; -- connection end point
716 * const struct netconfig *nconf; -- netconfig structure for network
717 * const struct t_bind *bindaddr; -- local bind address
718 * const size_t sendsz; -- max sendsize
719 * const size_t recvsz; -- max recvsize
725 * Transport independent svc_create routine.
727 extern int svc_create(void (*)(struct svc_req *, SVCXPRT *),
728 const rpcprog_t, const rpcvers_t, const char *);
730 * void (*dispatch)(); -- dispatch routine
731 * const rpcprog_t prognum; -- program number
732 * const rpcvers_t versnum; -- version number
733 * const char *nettype; -- network type
738 * Generic server creation routine. It takes a netconfig structure
739 * instead of a nettype.
742 extern SVCXPRT *svc_tp_create(void (*)(struct svc_req *, SVCXPRT *),
743 const rpcprog_t, const rpcvers_t,
744 const struct netconfig *);
746 * void (*dispatch)(); -- dispatch routine
747 * const rpcprog_t prognum; -- program number
748 * const rpcvers_t versnum; -- version number
749 * const struct netconfig *nconf; -- netconfig structure
753 * Generic TLI create routine
755 extern SVCXPRT *svc_tli_create(const int, const struct netconfig *,
756 const struct t_bind *, const u_int,
759 * const int fd; -- connection end point
760 * const struct netconfig *nconf; -- netconfig structure for network
761 * const struct t_bind *bindaddr; -- local bind address
762 * const u_int sendsz; -- max sendsize
763 * const u_int recvsz; -- max recvsize
767 * Connectionless and connectionful create routines
770 extern SVCXPRT *svc_vc_create(const int, const u_int, const u_int);
772 * const int fd; -- open connection end point
773 * const u_int sendsize; -- max send size
774 * const u_int recvsize; -- max recv size
778 * Added for compatibility to old rpc 4.0. Obsoleted by svc_vc_create().
780 extern SVCXPRT *svcunix_create(int, u_int, u_int, char *);
782 extern SVCXPRT *svc_dg_create(const int, const u_int, const u_int);
784 * const int fd; -- open connection
785 * const u_int sendsize; -- max send size
786 * const u_int recvsize; -- max recv size
791 * the routine takes any *open* connection
792 * descriptor as its first input and is used for open connections.
794 extern SVCXPRT *svc_fd_create(const int, const u_int, const u_int);
796 * const int fd; -- open connection end point
797 * const u_int sendsize; -- max send size
798 * const u_int recvsize; -- max recv size
802 * Added for compatibility to old rpc 4.0. Obsoleted by svc_fd_create().
804 extern SVCXPRT *svcunixfd_create(int, u_int, u_int);
807 * Memory based rpc (for speed check and testing)
809 extern SVCXPRT *svc_raw_create(void);
812 * svc_dg_enable_cache() enables the cache on dg transports.
814 int svc_dg_enablecache(SVCXPRT *, const u_int);
816 int __rpc_get_local_uid(SVCXPRT *_transp, uid_t *_uid);
818 #endif /* !_KERNEL */
823 /* for backward compatibility */
824 #include <rpc/svc_soc.h>
827 #endif /* !_RPC_SVC_H */