1 /* $NetBSD: svc.h,v 1.17 2000/06/02 22:57:56 fvdl Exp $ */
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29 * Mountain View, California 94043
31 * from: @(#)svc.h 1.35 88/12/17 SMI
32 * from: @(#)svc.h 1.27 94/04/25 SMI
37 * svc.h, Server-side remote procedure call interface.
39 * Copyright (C) 1986-1993 by Sun Microsystems, Inc.
44 #include <sys/cdefs.h>
47 #include <sys/queue.h>
48 #include <sys/_lock.h>
49 #include <sys/_mutex.h>
51 #include <sys/condvar.h>
52 #include <sys/sysctl.h>
56 * This interface must manage two items concerning remote procedure calling:
58 * 1) An arbitrary number of transport connections upon which rpc requests
59 * are received. The two most notable transports are TCP and UDP; they are
60 * created and registered by routines in svc_tcp.c and svc_udp.c, respectively;
61 * they in turn call xprt_register and xprt_unregister.
63 * 2) An arbitrary number of locally registered services. Services are
64 * described by the following four data: program number, version number,
65 * "service dispatch" function, a transport handle, and a boolean that
66 * indicates whether or not the exported program should be registered with a
67 * local binder service; if true the program's number and version and the
68 * port number from the transport handle are registered with the binder.
69 * These data are registered with the rpc svc system via svc_register.
71 * A service's dispatch function is called whenever an rpc request comes in
72 * on a transport. The request's program and version numbers must match
73 * those of the registered service. The dispatch function is passed two
74 * parameters, struct svc_req * and SVCXPRT *, defined below.
78 * Service control requests
80 #define SVCGET_VERSQUIET 1
81 #define SVCSET_VERSQUIET 2
82 #define SVCGET_CONNMAXREC 3
83 #define SVCSET_CONNMAXREC 4
86 * Operations for rpc_control().
88 #define RPC_SVC_CONNMAXREC_SET 0 /* set max rec size, enable nonblock */
89 #define RPC_SVC_CONNMAXREC_GET 1
102 /* receive incoming requests */
103 bool_t (*xp_recv)(struct __rpc_svcxprt *, struct rpc_msg *,
104 struct sockaddr **, struct mbuf **);
105 /* get transport status */
106 enum xprt_stat (*xp_stat)(struct __rpc_svcxprt *);
108 bool_t (*xp_reply)(struct __rpc_svcxprt *, struct rpc_msg *,
109 struct sockaddr *, struct mbuf *);
110 /* destroy this struct */
111 void (*xp_destroy)(struct __rpc_svcxprt *);
112 /* catch-all function */
113 bool_t (*xp_control)(struct __rpc_svcxprt *, const u_int, void *);
115 /* receive incoming requests */
116 bool_t (*xp_recv)(struct __rpc_svcxprt *, struct rpc_msg *);
117 /* get transport status */
118 enum xprt_stat (*xp_stat)(struct __rpc_svcxprt *);
120 bool_t (*xp_getargs)(struct __rpc_svcxprt *, xdrproc_t, void *);
122 bool_t (*xp_reply)(struct __rpc_svcxprt *, struct rpc_msg *);
123 /* free mem allocated for args */
124 bool_t (*xp_freeargs)(struct __rpc_svcxprt *, xdrproc_t, void *);
125 /* destroy this struct */
126 void (*xp_destroy)(struct __rpc_svcxprt *);
132 /* catch-all function */
133 bool_t (*xp_control)(struct __rpc_svcxprt *, const u_int, void *);
138 struct __rpc_svcpool;
139 struct __rpc_svcthread;
143 * Server side transport handle. In the kernel, transports have a
144 * reference count which tracks the number of currently assigned
145 * worker threads plus one for the service pool's reference.
147 typedef struct __rpc_svcxprt {
149 volatile u_int xp_refs;
151 struct __rpc_svcpool *xp_pool; /* owning pool (see below) */
152 TAILQ_ENTRY(__rpc_svcxprt) xp_link;
153 TAILQ_ENTRY(__rpc_svcxprt) xp_alink;
154 bool_t xp_registered; /* xprt_register has been called */
155 bool_t xp_active; /* xprt_active has been called */
156 struct __rpc_svcthread *xp_thread; /* assigned service thread */
157 struct socket* xp_socket;
158 const struct xp_ops *xp_ops;
159 char *xp_netid; /* network token */
160 struct sockaddr_storage xp_ltaddr; /* local transport address */
161 struct sockaddr_storage xp_rtaddr; /* remote transport address */
162 void *xp_p1; /* private: for use by svc ops */
163 void *xp_p2; /* private: for use by svc ops */
164 void *xp_p3; /* private: for use by svc lib */
165 int xp_type; /* transport type */
166 int xp_idletimeout; /* idle time before closing */
167 time_t xp_lastactive; /* time of last RPC */
168 u_int64_t xp_sockref; /* set by nfsv4 to identify socket */
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 struct cv st_cond; /* sleeping for work */
282 LIST_ENTRY(__rpc_svcthread) st_link; /* all threads list */
283 LIST_ENTRY(__rpc_svcthread) st_ilink; /* idle threads list */
284 LIST_ENTRY(__rpc_svcthread) st_alink; /* application thread list */
286 LIST_HEAD(svcthread_list, __rpc_svcthread);
289 * In the kernel, we can't use global variables to store lists of
290 * transports etc. since otherwise we could not have two unrelated RPC
291 * services running, each on its own thread. We solve this by
292 * importing a tiny part of a Solaris kernel concept, SVCPOOL.
294 * A service pool contains a set of transports and service callbacks
295 * for a set of related RPC services. The pool handle should be passed
296 * when creating new transports etc. Future work may include extending
297 * this to support something similar to the Solaris multi-threaded RPC
300 TAILQ_HEAD(svcxprt_list, __rpc_svcxprt);
302 SVCPOOL_INIT, /* svc_run not called yet */
303 SVCPOOL_ACTIVE, /* normal running state */
304 SVCPOOL_THREADWANTED, /* new service thread requested */
305 SVCPOOL_THREADSTARTING, /* new service thread started */
306 SVCPOOL_CLOSING /* svc_exit called */
308 typedef SVCTHREAD *pool_assign_fn(SVCTHREAD *, struct svc_req *);
309 typedef void pool_done_fn(SVCTHREAD *, struct svc_req *);
310 typedef struct __rpc_svcpool {
311 struct mtx sp_lock; /* protect the transport lists */
312 const char *sp_name; /* pool name (e.g. "nfsd", "NLM" */
313 enum svcpool_state sp_state; /* current pool state */
314 struct proc *sp_proc; /* process which is in svc_run */
315 struct svcxprt_list sp_xlist; /* all transports in the pool */
316 struct svcxprt_list sp_active; /* transports needing service */
317 struct svc_callout_list sp_callouts; /* (prog,vers)->dispatch list */
318 struct svcthread_list sp_threads; /* service threads */
319 struct svcthread_list sp_idlethreads; /* idle service threads */
320 int sp_minthreads; /* minimum service thread count */
321 int sp_maxthreads; /* maximum service thread count */
322 int sp_threadcount; /* current service thread count */
323 time_t sp_lastcreatetime; /* when we last started a thread */
324 time_t sp_lastidlecheck; /* when we last checked idle transports */
327 * Hooks to allow an application to control request to thread
330 pool_assign_fn *sp_assign;
331 pool_done_fn *sp_done;
334 * These variables are used to put an upper bound on the
335 * amount of memory used by RPC requests which are queued
336 * waiting for execution.
338 unsigned int sp_space_low;
339 unsigned int sp_space_high;
340 unsigned int sp_space_used;
341 unsigned int sp_space_used_highest;
342 bool_t sp_space_throttled;
343 int sp_space_throttle_count;
345 struct replay_cache *sp_rcache; /* optional replay cache */
346 struct sysctl_ctx_list sp_sysctl;
355 uint32_t rq_prog; /* service program number */
356 uint32_t rq_vers; /* service protocol version */
357 uint32_t rq_proc; /* the desired procedure */
358 struct opaque_auth rq_cred; /* raw creds from the wire */
359 void *rq_clntcred; /* read only cooked cred */
360 SVCXPRT *rq_xprt; /* associated transport */
364 * Approved way of getting address of caller
366 #define svc_getrpccaller(x) (&(x)->xp_rtaddr)
371 * Operations defined on an SVCXPRT handle
374 * struct rpc_msg *msg;
380 #define SVC_ACQUIRE(xprt) \
381 refcount_acquire(&(xprt)->xp_refs)
383 #define SVC_RELEASE(xprt) \
384 if (refcount_release(&(xprt)->xp_refs)) \
387 #define SVC_RECV(xprt, msg, addr, args) \
388 (*(xprt)->xp_ops->xp_recv)((xprt), (msg), (addr), (args))
390 #define SVC_STAT(xprt) \
391 (*(xprt)->xp_ops->xp_stat)(xprt)
393 #define SVC_REPLY(xprt, msg, addr, m) \
394 (*(xprt)->xp_ops->xp_reply) ((xprt), (msg), (addr), (m))
396 #define SVC_DESTROY(xprt) \
397 (*(xprt)->xp_ops->xp_destroy)(xprt)
399 #define SVC_CONTROL(xprt, rq, in) \
400 (*(xprt)->xp_ops->xp_control)((xprt), (rq), (in))
404 #define SVC_RECV(xprt, msg) \
405 (*(xprt)->xp_ops->xp_recv)((xprt), (msg))
406 #define svc_recv(xprt, msg) \
407 (*(xprt)->xp_ops->xp_recv)((xprt), (msg))
409 #define SVC_STAT(xprt) \
410 (*(xprt)->xp_ops->xp_stat)(xprt)
411 #define svc_stat(xprt) \
412 (*(xprt)->xp_ops->xp_stat)(xprt)
414 #define SVC_GETARGS(xprt, xargs, argsp) \
415 (*(xprt)->xp_ops->xp_getargs)((xprt), (xargs), (argsp))
416 #define svc_getargs(xprt, xargs, argsp) \
417 (*(xprt)->xp_ops->xp_getargs)((xprt), (xargs), (argsp))
419 #define SVC_REPLY(xprt, msg) \
420 (*(xprt)->xp_ops->xp_reply) ((xprt), (msg))
421 #define svc_reply(xprt, msg) \
422 (*(xprt)->xp_ops->xp_reply) ((xprt), (msg))
424 #define SVC_FREEARGS(xprt, xargs, argsp) \
425 (*(xprt)->xp_ops->xp_freeargs)((xprt), (xargs), (argsp))
426 #define svc_freeargs(xprt, xargs, argsp) \
427 (*(xprt)->xp_ops->xp_freeargs)((xprt), (xargs), (argsp))
429 #define SVC_DESTROY(xprt) \
430 (*(xprt)->xp_ops->xp_destroy)(xprt)
431 #define svc_destroy(xprt) \
432 (*(xprt)->xp_ops->xp_destroy)(xprt)
434 #define SVC_CONTROL(xprt, rq, in) \
435 (*(xprt)->xp_ops2->xp_control)((xprt), (rq), (in))
439 #define SVC_EXT(xprt) \
440 ((SVCXPRT_EXT *) xprt->xp_p3)
442 #define SVC_AUTH(xprt) \
443 (SVC_EXT(xprt)->xp_auth)
446 * Operations defined on an SVCAUTH handle
449 #define SVCAUTH_WRAP(auth, mp) \
450 ((auth)->svc_ah_ops->svc_ah_wrap(auth, mp))
451 #define SVCAUTH_UNWRAP(auth, mp) \
452 ((auth)->svc_ah_ops->svc_ah_unwrap(auth, mp))
453 #define SVCAUTH_RELEASE(auth) \
454 ((auth)->svc_ah_ops->svc_ah_release(auth))
456 #define SVCAUTH_WRAP(auth, xdrs, xfunc, xwhere) \
457 ((auth)->svc_ah_ops->svc_ah_wrap(auth, xdrs, xfunc, xwhere))
458 #define SVCAUTH_UNWRAP(auth, xdrs, xfunc, xwhere) \
459 ((auth)->svc_ah_ops->svc_ah_unwrap(auth, xdrs, xfunc, xwhere))
463 * Service registration
465 * svc_reg(xprt, prog, vers, dispatch, nconf)
466 * const SVCXPRT *xprt;
467 * const rpcprog_t prog;
468 * const rpcvers_t vers;
469 * const void (*dispatch)();
470 * const struct netconfig *nconf;
474 extern bool_t svc_reg(SVCXPRT *, const rpcprog_t, const rpcvers_t,
475 void (*)(struct svc_req *, SVCXPRT *),
476 const struct netconfig *);
480 * Service un-registration
482 * svc_unreg(prog, vers)
483 * const rpcprog_t prog;
484 * const rpcvers_t vers;
489 extern void svc_unreg(SVCPOOL *, const rpcprog_t, const rpcvers_t);
491 extern void svc_unreg(const rpcprog_t, const rpcvers_t);
496 * Transport registration.
498 * xprt_register(xprt)
502 extern void xprt_register(SVCXPRT *);
506 * Transport un-register
508 * xprt_unregister(xprt)
512 extern void xprt_unregister(SVCXPRT *);
513 extern void __xprt_unregister_unlocked(SVCXPRT *);
519 * Called when a transport has pending requests.
522 extern void xprt_active(SVCXPRT *);
523 extern void xprt_inactive(SVCXPRT *);
524 extern void xprt_inactive_locked(SVCXPRT *);
530 * When the service routine is called, it must first check to see if it
531 * knows about the procedure; if not, it should call svcerr_noproc
532 * and return. If so, it should deserialize its arguments via
533 * SVC_GETARGS (defined above). If the deserialization does not work,
534 * svcerr_decode should be called followed by a return. Successful
535 * decoding of the arguments should be followed the execution of the
536 * procedure's code and a call to svc_sendreply.
538 * Also, if the service refuses to execute the procedure due to too-
539 * weak authentication parameters, svcerr_weakauth should be called.
540 * Note: do not confuse access-control failure with weak authentication!
542 * NB: In pure implementations of rpc, the caller always waits for a reply
543 * msg. This message is sent when svc_sendreply is called.
544 * Therefore pure service implementations should always call
545 * svc_sendreply even if the function logically returns void; use
546 * xdr.h - xdr_void for the xdr routine. HOWEVER, tcp based rpc allows
547 * for the abuse of pure rpc via batched calling or pipelining. In the
548 * case of a batched call, svc_sendreply should NOT be called since
549 * this would send a return message, which is what batching tries to avoid.
550 * It is the service/protocol writer's responsibility to know which calls are
551 * batched and which are not. Warning: responding to batch calls may
552 * deadlock the caller and server processes!
557 extern bool_t svc_sendreply(struct svc_req *, xdrproc_t, void *);
558 extern bool_t svc_sendreply_mbuf(struct svc_req *, struct mbuf *);
559 extern void svcerr_decode(struct svc_req *);
560 extern void svcerr_weakauth(struct svc_req *);
561 extern void svcerr_noproc(struct svc_req *);
562 extern void svcerr_progvers(struct svc_req *, rpcvers_t, rpcvers_t);
563 extern void svcerr_auth(struct svc_req *, enum auth_stat);
564 extern void svcerr_noprog(struct svc_req *);
565 extern void svcerr_systemerr(struct svc_req *);
567 extern bool_t svc_sendreply(SVCXPRT *, xdrproc_t, void *);
568 extern void svcerr_decode(SVCXPRT *);
569 extern void svcerr_weakauth(SVCXPRT *);
570 extern void svcerr_noproc(SVCXPRT *);
571 extern void svcerr_progvers(SVCXPRT *, rpcvers_t, rpcvers_t);
572 extern void svcerr_auth(SVCXPRT *, enum auth_stat);
573 extern void svcerr_noprog(SVCXPRT *);
574 extern void svcerr_systemerr(SVCXPRT *);
576 extern int rpc_reg(rpcprog_t, rpcvers_t, rpcproc_t,
577 char *(*)(char *), xdrproc_t, xdrproc_t,
582 * Lowest level dispatching -OR- who owns this process anyway.
583 * Somebody has to wait for incoming requests and then call the correct
584 * service routine. The routine svc_run does infinite waiting; i.e.,
585 * svc_run never returns.
586 * Since another (co-existant) package may wish to selectively wait for
587 * incoming calls or other events outside of the rpc architecture, the
588 * routine svc_getreq is provided. It must be passed readfds, the
589 * "in-place" results of a select system call (see select, section 2).
594 * Global keeper of rpc service descriptors in use
595 * dynamic; must be inspected before each call to select
597 extern int svc_maxfd;
599 extern fd_set svc_fdset;
600 #define svc_fds svc_fdset.fds_bits[0] /* compatibility */
603 #endif /* def FD_SETSIZE */
607 * a small program implemented by the svc_rpc implementation itself;
608 * also see clnt.h for protocol numbers.
611 extern void rpctest_service(void);
615 extern SVCXPRT *svc_xprt_alloc(void);
616 extern void svc_xprt_free(SVCXPRT *);
618 extern void svc_getreq(int);
619 extern void svc_getreqset(fd_set *);
620 extern void svc_getreq_common(int);
622 extern void svc_getreq_poll(struct pollfd *, int);
623 extern void svc_run(void);
624 extern void svc_exit(void);
626 extern void svc_run(SVCPOOL *);
627 extern void svc_exit(SVCPOOL *);
628 extern bool_t svc_getargs(struct svc_req *, xdrproc_t, void *);
629 extern bool_t svc_freeargs(struct svc_req *, xdrproc_t, void *);
630 extern void svc_freereq(struct svc_req *);
636 * Socket to use on svcxxx_create call to get default socket
638 #define RPC_ANYSOCK -1
639 #define RPC_ANYFD RPC_ANYSOCK
642 * These are the existing service side transport implementations
650 * Create a new service pool.
652 extern SVCPOOL* svcpool_create(const char *name,
653 struct sysctl_oid_list *sysctl_base);
656 * Destroy a service pool, including all registered transports.
658 extern void svcpool_destroy(SVCPOOL *pool);
661 * Transport independent svc_create routine.
663 extern int svc_create(SVCPOOL *, void (*)(struct svc_req *, SVCXPRT *),
664 const rpcprog_t, const rpcvers_t, const char *);
666 * void (*dispatch)(); -- dispatch routine
667 * const rpcprog_t prognum; -- program number
668 * const rpcvers_t versnum; -- version number
669 * const char *nettype; -- network type
674 * Generic server creation routine. It takes a netconfig structure
675 * instead of a nettype.
678 extern SVCXPRT *svc_tp_create(SVCPOOL *, void (*)(struct svc_req *, SVCXPRT *),
679 const rpcprog_t, const rpcvers_t, const char *uaddr,
680 const struct netconfig *);
682 * void (*dispatch)(); -- dispatch routine
683 * const rpcprog_t prognum; -- program number
684 * const rpcvers_t versnum; -- version number
685 * const char *uaddr; -- universal address of service
686 * const struct netconfig *nconf; -- netconfig structure
689 extern SVCXPRT *svc_dg_create(SVCPOOL *, struct socket *,
690 const size_t, const size_t);
692 * struct socket *; -- open connection
693 * const size_t sendsize; -- max send size
694 * const size_t recvsize; -- max recv size
697 extern SVCXPRT *svc_vc_create(SVCPOOL *, struct socket *,
698 const size_t, const size_t);
700 * struct socket *; -- open connection
701 * const size_t sendsize; -- max send size
702 * const size_t recvsize; -- max recv size
706 * Generic TLI create routine
708 extern SVCXPRT *svc_tli_create(SVCPOOL *, struct socket *,
709 const struct netconfig *, const struct t_bind *, const size_t, const size_t);
711 * struct socket * so; -- connection end point
712 * const struct netconfig *nconf; -- netconfig structure for network
713 * const struct t_bind *bindaddr; -- local bind address
714 * const size_t sendsz; -- max sendsize
715 * const size_t recvsz; -- max recvsize
721 * Transport independent svc_create routine.
723 extern int svc_create(void (*)(struct svc_req *, SVCXPRT *),
724 const rpcprog_t, const rpcvers_t, const char *);
726 * void (*dispatch)(); -- dispatch routine
727 * const rpcprog_t prognum; -- program number
728 * const rpcvers_t versnum; -- version number
729 * const char *nettype; -- network type
734 * Generic server creation routine. It takes a netconfig structure
735 * instead of a nettype.
738 extern SVCXPRT *svc_tp_create(void (*)(struct svc_req *, SVCXPRT *),
739 const rpcprog_t, const rpcvers_t,
740 const struct netconfig *);
742 * void (*dispatch)(); -- dispatch routine
743 * const rpcprog_t prognum; -- program number
744 * const rpcvers_t versnum; -- version number
745 * const struct netconfig *nconf; -- netconfig structure
749 * Generic TLI create routine
751 extern SVCXPRT *svc_tli_create(const int, const struct netconfig *,
752 const struct t_bind *, const u_int,
755 * const int fd; -- connection end point
756 * const struct netconfig *nconf; -- netconfig structure for network
757 * const struct t_bind *bindaddr; -- local bind address
758 * const u_int sendsz; -- max sendsize
759 * const u_int recvsz; -- max recvsize
763 * Connectionless and connectionful create routines
766 extern SVCXPRT *svc_vc_create(const int, const u_int, const u_int);
768 * const int fd; -- open connection end point
769 * const u_int sendsize; -- max send size
770 * const u_int recvsize; -- max recv size
774 * Added for compatibility to old rpc 4.0. Obsoleted by svc_vc_create().
776 extern SVCXPRT *svcunix_create(int, u_int, u_int, char *);
778 extern SVCXPRT *svc_dg_create(const int, const u_int, const u_int);
780 * const int fd; -- open connection
781 * const u_int sendsize; -- max send size
782 * const u_int recvsize; -- max recv size
787 * the routine takes any *open* connection
788 * descriptor as its first input and is used for open connections.
790 extern SVCXPRT *svc_fd_create(const int, const u_int, const u_int);
792 * const int fd; -- open connection end point
793 * const u_int sendsize; -- max send size
794 * const u_int recvsize; -- max recv size
798 * Added for compatibility to old rpc 4.0. Obsoleted by svc_fd_create().
800 extern SVCXPRT *svcunixfd_create(int, u_int, u_int);
803 * Memory based rpc (for speed check and testing)
805 extern SVCXPRT *svc_raw_create(void);
808 * svc_dg_enable_cache() enables the cache on dg transports.
810 int svc_dg_enablecache(SVCXPRT *, const u_int);
812 int __rpc_get_local_uid(SVCXPRT *_transp, uid_t *_uid);
814 #endif /* !_KERNEL */
819 /* for backward compatibility */
820 #include <rpc/svc_soc.h>
823 #endif /* !_RPC_SVC_H */