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- /* Copyright (c) 1990 UNIX System Laboratories, Inc. */
- /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */
- /* All Rights Reserved */
-
- /* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF */
- /* UNIX System Laboratories, Inc. */
- /* The copyright notice above does not evidence any */
- /* actual or intended publication of such source code. */
-
- #ident "@(#)/usr/include/rpc/svc.h.sl 1.1 4.0 12/08/90 1277 AT&T-USL"
-
- /* @(#)svc.h 1.35 88/12/17 SMI */
-
- /*
- * PROPRIETARY NOTICE (Combined)
- *
- * This source code is unpublished proprietary information
- * constituting, or derived under license from AT&T's Unix(r) System V.
- * In addition, portions of such source code were derived from Berkeley
- * 4.3 BSD under license from the Regents of the University of
- * California.
- *
- *
- *
- * Copyright Notice
- *
- * Notice of copyright on this source code product does not indicate
- * publication.
- *
- * (c) 1986,1987,1988,1989 Sun Microsystems, Inc.
- * (c) 1983,1984,1985,1986,1987,1988,1989 AT&T.
- * All rights reserved.
- */
-
- /*
- * svc.h, Server-side remote procedure call interface.
- *
- */
-
- #ifndef _RPC_SVC_H
- #define _RPC_SVC_H
-
- #include <rpc/rpc_com.h>
-
- /*
- * This interface must manage two items concerning remote procedure calling:
- *
- * 1) An arbitrary number of transport connections upon which rpc requests
- * are received. They are created and registered by routines in svc_generic.c,
- * svc_vc.c and svc_dg.c; they in turn call xprt_register and
- * xprt_unregister.
- *
- * 2) An arbitrary number of locally registered services. Services are
- * described by the following four data: program number, version number,
- * "service dispatch" function, a transport handle, and a boolean that
- * indicates whether or not the exported program should be registered with a
- * local binder service; if true the program's number and version and the
- * address from the transport handle are registered with the binder.
- * These data are registered with rpcbind via svc_reg().
- *
- * A service's dispatch function is called whenever an rpc request comes in
- * on a transport. The request's program and version numbers must match
- * those of the registered service. The dispatch function is passed two
- * parameters, struct svc_req * and SVCXPRT *, defined below.
- */
-
- enum xprt_stat {
- XPRT_DIED,
- XPRT_MOREREQS,
- XPRT_IDLE
- };
-
- /*
- * Server side transport handle
- */
- typedef struct {
- #ifdef _KERNEL
- TIUSER *xp_tiptr;
- #else
- int xp_fd;
- #define xp_sock xp_fd
- #endif
- u_short xp_port; /* associated port number.
- * Obsoleted, but still used to
- * specify whether rendezvouser
- * or normal connection
- */
- struct xp_ops {
- bool_t (*xp_recv)(); /* receive incoming requests */
- enum xprt_stat (*xp_stat)(); /* get transport status */
- bool_t (*xp_getargs)(); /* get arguments */
- bool_t (*xp_reply)(); /* send reply */
- bool_t (*xp_freeargs)();/* free mem allocated for args */
- void (*xp_destroy)(); /* destroy this struct */
- } *xp_ops;
- #ifndef _KERNEL
- int xp_addrlen; /* length of remote addr. Obsoleted */
- char *xp_tp; /* transport provider device name */
- char *xp_netid; /* network token */
- #endif
- struct netbuf xp_ltaddr; /* local transport address */
- struct netbuf xp_rtaddr; /* remote transport address */
- #ifndef _KERNEL
- char xp_raddr[16]; /* remote address. Now obsoleted */
- #endif
- struct opaque_auth xp_verf; /* raw response verifier */
- caddr_t xp_p1; /* private: for use by svc ops */
- #ifdef _KERNEL
- u_int xp_p1len; /* size of p1 */
- #endif
- caddr_t xp_p2; /* private: for use by svc ops */
- caddr_t xp_p3; /* private: for use by svc lib */
- } SVCXPRT;
-
- /*
- * Approved way of getting address of caller
- */
- #define svc_getrpccaller(x) (&(x)->xp_rtaddr)
- #ifdef _KERNEL
- #define svc_getcaller(x) (&(x)->xp_rtaddr.buf)
- #endif
-
- /*
- * Operations defined on an SVCXPRT handle
- *
- * SVCXPRT *xprt;
- * struct rpc_msg *msg;
- * xdrproc_t xargs;
- * caddr_t argsp;
- */
- #define SVC_RECV(xprt, msg) \
- (*(xprt)->xp_ops->xp_recv)((xprt), (msg))
- #define svc_recv(xprt, msg) \
- (*(xprt)->xp_ops->xp_recv)((xprt), (msg))
-
- #define SVC_STAT(xprt) \
- (*(xprt)->xp_ops->xp_stat)(xprt)
- #define svc_stat(xprt) \
- (*(xprt)->xp_ops->xp_stat)(xprt)
-
- #define SVC_GETARGS(xprt, xargs, argsp) \
- (*(xprt)->xp_ops->xp_getargs)((xprt), (xargs), (argsp))
- #define svc_getargs(xprt, xargs, argsp) \
- (*(xprt)->xp_ops->xp_getargs)((xprt), (xargs), (argsp))
-
- #define SVC_REPLY(xprt, msg) \
- (*(xprt)->xp_ops->xp_reply) ((xprt), (msg))
- #define svc_reply(xprt, msg) \
- (*(xprt)->xp_ops->xp_reply) ((xprt), (msg))
-
- #define SVC_FREEARGS(xprt, xargs, argsp) \
- (*(xprt)->xp_ops->xp_freeargs)((xprt), (xargs), (argsp))
- #define svc_freeargs(xprt, xargs, argsp) \
- (*(xprt)->xp_ops->xp_freeargs)((xprt), (xargs), (argsp))
-
- #define SVC_DESTROY(xprt) \
- (*(xprt)->xp_ops->xp_destroy)(xprt)
- #define svc_destroy(xprt) \
- (*(xprt)->xp_ops->xp_destroy)(xprt)
-
-
- /*
- * Service request
- */
- struct svc_req {
- u_long rq_prog; /* service program number */
- u_long rq_vers; /* service protocol version */
- u_long rq_proc; /* the desired procedure */
- struct opaque_auth rq_cred; /* raw creds from the wire */
- caddr_t rq_clntcred; /* read only cooked cred */
- SVCXPRT *rq_xprt; /* associated transport */
- };
-
-
- /*
- * Service registration
- *
- * svc_reg(xprt, prog, vers, dispatch, nconf)
- * SVCXPRT *xprt;
- * u_long prog;
- * u_long vers;
- * void (*dispatch)();
- * struct netconfig *nconf;
- */
- extern bool_t svc_reg();
-
- /*
- * Service un-registration
- *
- * svc_unreg(prog, vers)
- * u_long prog;
- * u_long vers;
- */
- extern void svc_unreg();
-
- /*
- * Transport registration.
- *
- * xprt_register(xprt)
- * SVCXPRT *xprt;
- */
- extern void xprt_register();
-
- /*
- * Transport un-register
- *
- * xprt_unregister(xprt)
- * SVCXPRT *xprt;
- */
- extern void xprt_unregister();
-
-
- /*
- * When the service routine is called, it must first check to see if it
- * knows about the procedure; if not, it should call svcerr_noproc
- * and return. If so, it should deserialize its arguments via
- * SVC_GETARGS (defined above). If the deserialization does not work,
- * svcerr_decode should be called followed by a return. Successful
- * decoding of the arguments should be followed the execution of the
- * procedure's code and a call to svc_sendreply.
- *
- * Also, if the service refuses to execute the procedure due to too-
- * weak authentication parameters, svcerr_weakauth should be called.
- * Note: do not confuse access-control failure with weak authentication!
- *
- * NB: In pure implementations of rpc, the caller always waits for a reply
- * msg. This message is sent when svc_sendreply is called.
- * Therefore pure service implementations should always call
- * svc_sendreply even if the function logically returns void; use
- * xdr.h - xdr_void for the xdr routine. HOWEVER, connectionful rpc allows
- * for the abuse of pure rpc via batched calling or pipelining. In the
- * case of a batched call, svc_sendreply should NOT be called since
- * this would send a return message, which is what batching tries to avoid.
- * It is the service/protocol writer's responsibility to know which calls are
- * batched and which are not. Warning: responding to batch calls may
- * deadlock the caller and server processes!
- */
-
- extern bool_t svc_sendreply();
- extern void svcerr_decode();
- extern void svcerr_weakauth();
- extern void svcerr_noproc();
- extern void svcerr_progvers();
- extern void svcerr_auth();
- extern void svcerr_noprog();
- #ifndef _KERNEL
- extern void svcerr_systemerr();
- #endif
-
- /*
- * Lowest level dispatching -OR- who owns this process anyway.
- * Somebody has to wait for incoming requests and then call the correct
- * service routine. The routine svc_run does infinite waiting; i.e.,
- * svc_run never returns.
- * Since another (co-existant) package may wish to selectively wait for
- * incoming calls or other events outside of the rpc architecture, the
- * routine svc_getreq is provided. It must be passed readfds, the
- * "in-place" results of a select call (see select, section XXX).
- */
-
- #ifndef _KERNEL
- /*
- * Global keeper of rpc service descriptors in use
- * dynamic; must be inspected before each call to select
- */
- extern fd_set svc_fdset;
- #define svc_fds svc_fdset.fds_bits[0] /* compatibility */
-
- /*
- * a small program implemented by the svc_rpc implementation itself;
- * also see clnt.h for protocol numbers.
- */
- extern void rpctest_service();
- #endif /* !_KERNEL */
-
- extern void svc_getreq();
- #ifndef _KERNEL
- extern void svc_getreqset(); /* takes fdset instead of int */
- #endif
- extern void svc_run();
-
-
- #ifndef _KERNEL
- /*
- * These are the existing service side transport implementations
- */
- /*
- * Transport independent svc_create routine.
- */
- extern int
- svc_create(/* dispatch, prognum, versnum, nettype*/); /*
- void (*dispatch)(); -- dispatch routine
- u_long prognum; -- program number
- u_long versnum; -- version number
- char *nettype; -- network type
- */
-
- /*
- * Generic server creation routine. It takes a netconfig structure
- * instead of a nettype.
- */
- extern SVCXPRT *
- svc_tp_create(/* dispatch, prognum, versnum, nconf*/); /*
- void (*dispatch)(); -- dispatch routine
- u_long prognum; -- program number
- u_long versnum; -- version number
- struct netconfig *nconf; -- netconfig structure
- */
-
- /*
- * Generic TLI create routine
- */
- extern SVCXPRT *
- svc_tli_create(/* fd, nconf, bindaddr, sendsz, recvsz*/) ; /*
- int fd; -- connection end point
- struct netconfig *nconf; -- netconfig structure for network
- struct t_bind *bindaddr; -- local bind address
- u_int sendsz; -- max sendsize
- u_int recvsz; -- max recvsize
- */
-
- /*
- * Connectionless and connectionful create routines
- */
- extern SVCXPRT *
- svc_vc_create(/* fd, sendsize, recvsize*/); /*
- int fd; -- open connection end point
- u_int sendsize; -- max send size
- u_int recvsize; -- max recv size
- */
-
- extern SVCXPRT *
- svc_dg_create(/* fd, sendsize, recvsize*/); /*
- int fd; -- open connection end point
- u_int sendsize; -- max send size
- u_int recvsize; -- max recv size
- */
-
- /*
- * the routine takes any *open* TLI file
- * descriptor as its first input and is used for open connections.
- */
- extern SVCXPRT *
- svc_fd_create(/* fd, sendsize, recvsize*/); /*
- int fd; -- open connection end point
- u_int sendsize; -- max send size
- u_int recvsize; -- max recv size
- */
-
- /*
- * Memory based rpc (for speed check and testing)
- */
- extern SVCXPRT *
- svc_raw_create();
-
- #ifdef PORTMAP
- /* For backword compatibility */
- #include <rpc/svc_soc.h>
- #endif
-
- #else
- /* kernel based rpc
- */
- extern int svc_tli_kcreate();
- #endif /* !_KERNEL */
- #endif /* !_RPC_SVC_H */
-