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clnt.h
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des.h
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nettype.h
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pmap_clnt.h
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rpc.h
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rpcb_prot.x
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rpcent.h
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rpcsec_gss.h
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svc.h
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svc_auth.h
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xdr.h
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Editing: svc.h
/* $NetBSD: svc.h,v 1.17 2000/06/02 22:57:56 fvdl Exp $ */ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 2009, Sun Microsystems, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * - Neither the name of Sun Microsystems, Inc. nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * from: @(#)svc.h 1.35 88/12/17 SMI * from: @(#)svc.h 1.27 94/04/25 SMI * $FreeBSD$ */ /* * svc.h, Server-side remote procedure call interface. * * Copyright (C) 1986-1993 by Sun Microsystems, Inc. */ #ifndef _RPC_SVC_H #define _RPC_SVC_H #include <sys/cdefs.h> /* * This interface must manage two items concerning remote procedure calling: * * 1) An arbitrary number of transport connections upon which rpc requests * are received. The two most notable transports are TCP and UDP; they are * created and registered by routines in svc_tcp.c and svc_udp.c, respectively; * 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 * port number from the transport handle are registered with the binder. * These data are registered with the rpc svc system via svc_register. * * 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. */ /* * Service control requests */ #define SVCGET_VERSQUIET 1 #define SVCSET_VERSQUIET 2 #define SVCGET_CONNMAXREC 3 #define SVCSET_CONNMAXREC 4 /* * Operations for rpc_control(). */ #define RPC_SVC_CONNMAXREC_SET 0 /* set max rec size, enable nonblock */ #define RPC_SVC_CONNMAXREC_GET 1 enum xprt_stat { XPRT_DIED, XPRT_MOREREQS, XPRT_IDLE }; /* * Server side transport handle */ typedef struct __rpc_svcxprt { int xp_fd; #define xp_sock xp_fd u_short xp_port; /* associated port number */ const struct xp_ops { /* receive incoming requests */ bool_t (*xp_recv)(struct __rpc_svcxprt *, struct rpc_msg *); /* get transport status */ enum xprt_stat (*xp_stat)(struct __rpc_svcxprt *); /* get arguments */ bool_t (*xp_getargs)(struct __rpc_svcxprt *, xdrproc_t, void *); /* send reply */ bool_t (*xp_reply)(struct __rpc_svcxprt *, struct rpc_msg *); /* free mem allocated for args */ bool_t (*xp_freeargs)(struct __rpc_svcxprt *, xdrproc_t, void *); /* destroy this struct */ void (*xp_destroy)(struct __rpc_svcxprt *); } *xp_ops; int xp_addrlen; /* length of remote address */ struct sockaddr_in xp_raddr; /* remote addr. (backward ABI compat) */ /* XXX - fvdl stick this here for ABI backward compat reasons */ const struct xp_ops2 { /* catch-all function */ bool_t (*xp_control)(struct __rpc_svcxprt *, const u_int, void *); } *xp_ops2; char *xp_tp; /* transport provider device name */ char *xp_netid; /* network token */ struct netbuf xp_ltaddr; /* local transport address */ struct netbuf xp_rtaddr; /* remote transport address */ struct opaque_auth xp_verf; /* raw response verifier */ void *xp_p1; /* private: for use by svc ops */ void *xp_p2; /* private: for use by svc ops */ void *xp_p3; /* private: for use by svc lib */ int xp_type; /* transport type */ } SVCXPRT; /* * Interface to server-side authentication flavors. */ typedef struct __rpc_svcauth { struct svc_auth_ops { int (*svc_ah_wrap)(struct __rpc_svcauth *, XDR *, xdrproc_t, caddr_t); int (*svc_ah_unwrap)(struct __rpc_svcauth *, XDR *, xdrproc_t, caddr_t); } *svc_ah_ops; void *svc_ah_private; } SVCAUTH; /* * Server transport extensions (accessed via xp_p3). */ typedef struct __rpc_svcxprt_ext { int xp_flags; /* versquiet */ SVCAUTH xp_auth; /* interface to auth methods */ } SVCXPRT_EXT; /* * Service request */ struct svc_req { u_int32_t rq_prog; /* service program number */ u_int32_t rq_vers; /* service protocol version */ u_int32_t rq_proc; /* the desired procedure */ struct opaque_auth rq_cred; /* raw creds from the wire */ void *rq_clntcred; /* read only cooked cred */ SVCXPRT *rq_xprt; /* associated transport */ }; /* * Approved way of getting address of caller */ #define svc_getrpccaller(x) (&(x)->xp_rtaddr) /* * Operations defined on an SVCXPRT handle * * SVCXPRT *xprt; * struct rpc_msg *msg; * xdrproc_t xargs; * void * 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) #define SVC_CONTROL(xprt, rq, in) \ (*(xprt)->xp_ops2->xp_control)((xprt), (rq), (in)) #define SVC_EXT(xprt) \ ((SVCXPRT_EXT *) xprt->xp_p3) #define SVC_AUTH(xprt) \ (SVC_EXT(xprt)->xp_auth) /* * Operations defined on an SVCAUTH handle */ #define SVCAUTH_WRAP(auth, xdrs, xfunc, xwhere) \ ((auth)->svc_ah_ops->svc_ah_wrap(auth, xdrs, xfunc, xwhere)) #define SVCAUTH_UNWRAP(auth, xdrs, xfunc, xwhere) \ ((auth)->svc_ah_ops->svc_ah_unwrap(auth, xdrs, xfunc, xwhere)) /* * Service registration * * svc_reg(xprt, prog, vers, dispatch, nconf) * const SVCXPRT *xprt; * const rpcprog_t prog; * const rpcvers_t vers; * const void (*dispatch)(struct svc_req *, SVCXPRT *); * const struct netconfig *nconf; */ __BEGIN_DECLS extern bool_t svc_reg(SVCXPRT *, const rpcprog_t, const rpcvers_t, void (*)(struct svc_req *, SVCXPRT *), const struct netconfig *); __END_DECLS /* * Service un-registration * * svc_unreg(prog, vers) * const rpcprog_t prog; * const rpcvers_t vers; */ __BEGIN_DECLS extern void svc_unreg(const rpcprog_t, const rpcvers_t); __END_DECLS /* * Transport registration. * * xprt_register(xprt) * SVCXPRT *xprt; */ __BEGIN_DECLS extern void xprt_register(SVCXPRT *); __END_DECLS /* * Transport un-register * * xprt_unregister(xprt) * SVCXPRT *xprt; */ __BEGIN_DECLS extern void xprt_unregister(SVCXPRT *); __END_DECLS /* * 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, tcp based 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! */ __BEGIN_DECLS extern bool_t svc_sendreply(SVCXPRT *, xdrproc_t, void *); extern void svcerr_decode(SVCXPRT *); extern void svcerr_weakauth(SVCXPRT *); extern void svcerr_noproc(SVCXPRT *); extern void svcerr_progvers(SVCXPRT *, rpcvers_t, rpcvers_t); extern void svcerr_auth(SVCXPRT *, enum auth_stat); extern void svcerr_noprog(SVCXPRT *); extern void svcerr_systemerr(SVCXPRT *); extern int rpc_reg(rpcprog_t, rpcvers_t, rpcproc_t, char *(*)(char *), xdrproc_t, xdrproc_t, char *); __END_DECLS /* * 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-existent) 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 system call (see select, section 2). */ /* * Global keeper of rpc service descriptors in use * dynamic; must be inspected before each call to select */ extern int svc_maxfd; #ifdef FD_SETSIZE extern fd_set svc_fdset; #define svc_fds svc_fdset.fds_bits[0] /* compatibility */ #else extern int svc_fds; #endif /* def FD_SETSIZE */ /* * A set of null auth methods used by any authentication protocols * that don't need to inspect or modify the message body. */ extern SVCAUTH _svc_auth_null; /* * a small program implemented by the svc_rpc implementation itself; * also see clnt.h for protocol numbers. */ __BEGIN_DECLS extern void rpctest_service(void); __END_DECLS __BEGIN_DECLS extern SVCXPRT *svc_xprt_alloc(void); extern void svc_xprt_free(SVCXPRT *); extern void svc_getreq(int); extern void svc_getreqset(fd_set *); extern void svc_getreq_common(int); struct pollfd; extern void svc_getreq_poll(struct pollfd *, int); extern void svc_run(void); extern void svc_exit(void); __END_DECLS /* * Socket to use on svcxxx_create call to get default socket */ #define RPC_ANYSOCK -1 #define RPC_ANYFD RPC_ANYSOCK /* * These are the existing service side transport implementations */ __BEGIN_DECLS /* * Transport independent svc_create routine. */ extern int svc_create(void (*)(struct svc_req *, SVCXPRT *), const rpcprog_t, const rpcvers_t, const char *); /* * void (*dispatch)(struct svc_req *, SVCXPRT *); * const rpcprog_t prognum; -- program number * const rpcvers_t versnum; -- version number * const char *nettype; -- network type */ /* * Generic server creation routine. It takes a netconfig structure * instead of a nettype. */ extern SVCXPRT *svc_tp_create(void (*)(struct svc_req *, SVCXPRT *), const rpcprog_t, const rpcvers_t, const struct netconfig *); /* * void (*dispatch)(struct svc_req *, SVCXPRT *); * const rpcprog_t prognum; -- program number * const rpcvers_t versnum; -- version number * const struct netconfig *nconf; -- netconfig structure */ /* * Generic TLI create routine */ extern SVCXPRT *svc_tli_create(const int, const struct netconfig *, const struct t_bind *, const u_int, const u_int); /* * const int fd; -- connection end point * const struct netconfig *nconf; -- netconfig structure for network * const struct t_bind *bindaddr; -- local bind address * const u_int sendsz; -- max sendsize * const u_int recvsz; -- max recvsize */ /* * Connectionless and connectionful create routines */ extern SVCXPRT *svc_vc_create(const int, const u_int, const u_int); /* * const int fd; -- open connection end point * const u_int sendsize; -- max send size * const u_int recvsize; -- max recv size */ /* * Added for compatibility to old rpc 4.0. Obsoleted by svc_vc_create(). */ extern SVCXPRT *svcunix_create(int, u_int, u_int, char *); extern SVCXPRT *svc_dg_create(const int, const u_int, const u_int); /* * const int fd; -- open connection * const u_int sendsize; -- max send size * const u_int recvsize; -- max recv size */ /* * the routine takes any *open* connection * descriptor as its first input and is used for open connections. */ extern SVCXPRT *svc_fd_create(const int, const u_int, const u_int); /* * const int fd; -- open connection end point * const u_int sendsize; -- max send size * const u_int recvsize; -- max recv size */ /* * Added for compatibility to old rpc 4.0. Obsoleted by svc_fd_create(). */ extern SVCXPRT *svcunixfd_create(int, u_int, u_int); /* * Memory based rpc (for speed check and testing) */ extern SVCXPRT *svc_raw_create(void); /* * svc_dg_enable_cache() enables the cache on dg transports. */ int svc_dg_enablecache(SVCXPRT *, const u_int); int __rpc_get_local_uid(SVCXPRT *_transp, uid_t *_uid); __END_DECLS /* for backward compatibility */ #include <rpc/svc_soc.h> #endif /* !_RPC_SVC_H */
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