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- Subject: v13i081: Sun RPC, release 3.9, Part04/10
- Newsgroups: comp.sources.unix
- Sender: sources
- Approved: rsalz@uunet.UU.NET
-
- Submitted-by: Stephen X. Nahm <sxn@Sun.COM>
- Posting-number: Volume 13, Issue 81
- Archive-name: rpc3.9/part04
-
- #! /bin/sh
- # This is a shell archive. To extract, remove the header and type "sh filename"
- #
- cd rpc
- echo x - svc.h
- cat > svc.h <<'Funky_Stuff'
- /* @(#)svc.h 1.2 87/11/09 3.9 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- /* @(#)svc.h 1.18 87/07/14 SMI *
-
- /*
- * svc.h, Server-side remote procedure call interface.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- */
-
- #ifndef __SVC_HEADER__
- #define __SVC_HEADER__
-
- /*
- * 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.
- */
-
- enum xprt_stat {
- XPRT_DIED,
- XPRT_MOREREQS,
- XPRT_IDLE
- };
-
- /*
- * Server side transport handle
- */
- typedef struct {
- int xp_sock;
- u_short xp_port; /* associated port number */
- struct xp_ops {
- bool_t (*xp_recv)(); /* receive incomming 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;
- int xp_addrlen; /* length of remote address */
- struct sockaddr_in xp_raddr; /* remote address */
- struct opaque_auth xp_verf; /* raw response verifier */
- caddr_t xp_p1; /* private */
- caddr_t xp_p2; /* private */
- } SVCXPRT;
-
- /*
- * Approved way of getting address of caller
- */
- #define svc_getcaller(x) (&(x)->xp_raddr)
-
- /*
- * 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_register(xprt, prog, vers, dispatch, protocol)
- * SVCXPRT *xprt;
- * u_long prog;
- * u_long vers;
- * void (*dispatch)();
- * int protocol; /* like TCP or UDP, zero means do not register
- */
- extern bool_t svc_register();
-
- /*
- * Service un-registration
- *
- * svc_unregister(prog, vers)
- * u_long prog;
- * u_long vers;
- */
- extern void svc_unregister();
-
- /*
- * 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, 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!
- */
-
- extern bool_t svc_sendreply();
- extern void svcerr_decode();
- extern void svcerr_weakauth();
- extern void svcerr_noproc();
-
- /*
- * 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 system call (see select, section 2).
- */
-
- /*
- * Global keeper of rpc service descriptors in use
- * dynamic; must be inspected before each call to select
- */
- #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 small program implemented by the svc_rpc implementation itself;
- * also see clnt.h for protocol numbers.
- */
- extern void rpctest_service();
-
- extern void svc_getreq();
- extern void svc_getreqset(); /* takes fdset instead of int */
- extern void svc_run(); /* never returns */
-
- /*
- * Socket to use on svcxxx_create call to get default socket
- */
- #define RPC_ANYSOCK -1
-
- /*
- * These are the existing service side transport implementations
- */
-
- /*
- * Memory based rpc for testing and timing.
- */
- extern SVCXPRT *svcraw_create();
-
- /*
- * Udp based rpc.
- */
- extern SVCXPRT *svcudp_create();
- extern SVCXPRT *svcudp_bufcreate();
-
- /*
- * Tcp based rpc.
- */
- extern SVCXPRT *svctcp_create();
-
-
-
- #endif !__SVC_HEADER__
- Funky_Stuff
- len=`wc -c < svc.h`
- if [ $len != 8701 ] ; then
- echo error: svc.h was $len bytes long, should have been 8701
- fi
- echo x - svc_auth.c
- cat > svc_auth.c <<'Funky_Stuff'
- /* @(#)svc_auth.c 1.1 87/11/04 3.9 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- #if !defined(lint) && defined(SCCSIDS)
- static char sccsid[] = "@(#)svc_auth.c 1.19 87/08/11 Copyr 1984 Sun Micro";
- #endif
-
- /*
- * svc_auth.c, Server-side rpc authenticator interface.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- */
-
- #include <rpc/rpc.h>
-
- /*
- * svcauthsw is the bdevsw of server side authentication.
- *
- * Server side authenticators are called from authenticate by
- * using the client auth struct flavor field to index into svcauthsw.
- * The server auth flavors must implement a routine that looks
- * like:
- *
- * enum auth_stat
- * flavorx_auth(rqst, msg)
- * register struct svc_req *rqst;
- * register struct rpc_msg *msg;
- *
- */
-
- enum auth_stat _svcauth_null(); /* no authentication */
- enum auth_stat _svcauth_unix(); /* unix style (uid, gids) */
- enum auth_stat _svcauth_short(); /* short hand unix style */
-
- static struct {
- enum auth_stat (*authenticator)();
- } svcauthsw[] = {
- _svcauth_null, /* AUTH_NULL */
- _svcauth_unix, /* AUTH_UNIX */
- _svcauth_short, /* AUTH_SHORT */
- };
- #define AUTH_MAX 2 /* HIGHEST AUTH NUMBER */
-
-
- /*
- * The call rpc message, msg has been obtained from the wire. The msg contains
- * the raw form of credentials and verifiers. authenticate returns AUTH_OK
- * if the msg is successfully authenticated. If AUTH_OK then the routine also
- * does the following things:
- * set rqst->rq_xprt->verf to the appropriate response verifier;
- * sets rqst->rq_client_cred to the "cooked" form of the credentials.
- *
- * NB: rqst->rq_cxprt->verf must be pre-alloctaed;
- * its length is set appropriately.
- *
- * The caller still owns and is responsible for msg->u.cmb.cred and
- * msg->u.cmb.verf. The authentication system retains ownership of
- * rqst->rq_client_cred, the cooked credentials.
- *
- * There is an assumption that any flavour less than AUTH_NULL is
- * invalid.
- */
- enum auth_stat
- _authenticate(rqst, msg)
- register struct svc_req *rqst;
- struct rpc_msg *msg;
- {
- register int cred_flavor;
-
- rqst->rq_cred = msg->rm_call.cb_cred;
- rqst->rq_xprt->xp_verf.oa_flavor = _null_auth.oa_flavor;
- rqst->rq_xprt->xp_verf.oa_length = 0;
- cred_flavor = rqst->rq_cred.oa_flavor;
- if ((cred_flavor <= AUTH_MAX) && (cred_flavor >= AUTH_NULL)) {
- return ((*(svcauthsw[cred_flavor].authenticator))(rqst, msg));
- }
-
- return (AUTH_REJECTEDCRED);
- }
-
- enum auth_stat
- _svcauth_null(/*rqst, msg*/)
- /*struct svc_req *rqst;
- struct rpc_msg *msg;*/
- {
-
- return (AUTH_OK);
- }
- Funky_Stuff
- len=`wc -c < svc_auth.c`
- if [ $len != 3726 ] ; then
- echo error: svc_auth.c was $len bytes long, should have been 3726
- fi
- echo x - svc_auth.h
- cat > svc_auth.h <<'Funky_Stuff'
- /* @(#)svc_auth.h 1.1 87/11/04 3.9 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- /* @(#)svc_auth.h 1.6 86/07/16 SMI */
-
- /*
- * svc_auth.h, Service side of rpc authentication.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- */
-
-
- /*
- * Server side authenticator
- */
- extern enum auth_stat _authenticate();
- Funky_Stuff
- len=`wc -c < svc_auth.h`
- if [ $len != 1548 ] ; then
- echo error: svc_auth.h was $len bytes long, should have been 1548
- fi
- echo x - svc_auth_unix.c
- cat > svc_auth_unix.c <<'Funky_Stuff'
- /* @(#)svc_auth_unix.c 1.1 87/11/04 3.9 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- #if !defined(lint) && defined(SCCSIDS)
- static char sccsid[] = "@(#)svc_auth_unix.c 1.26 87/08/11 Copyr 1984 Sun Micro";
- #endif
-
- /*
- * svc_auth_unix.c
- * Handles UNIX flavor authentication parameters on the service side of rpc.
- * There are two svc auth implementations here: AUTH_UNIX and AUTH_SHORT.
- * _svcauth_unix does full blown unix style uid,gid+gids auth,
- * _svcauth_short uses a shorthand auth to index into a cache of longhand auths.
- * Note: the shorthand has been gutted for efficiency.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- */
-
- #include <stdio.h>
- #include <sys/time.h>
- #include <rpc/rpc.h>
-
- /*
- * Unix longhand authenticator
- */
- enum auth_stat
- _svcauth_unix(rqst, msg)
- register struct svc_req *rqst;
- register struct rpc_msg *msg;
- {
- register enum auth_stat stat;
- XDR xdrs;
- register struct authunix_parms *aup;
- register long *buf;
- struct area {
- struct authunix_parms area_aup;
- char area_machname[MAX_MACHINE_NAME];
- int area_gids[NGRPS];
- } *area;
- u_int auth_len;
- int str_len, gid_len;
- register int i;
-
- area = (struct area *) rqst->rq_clntcred;
- aup = &area->area_aup;
- aup->aup_machname = area->area_machname;
- aup->aup_gids = area->area_gids;
- auth_len = (u_int)msg->rm_call.cb_cred.oa_length;
- xdrmem_create(&xdrs, msg->rm_call.cb_cred.oa_base, auth_len,XDR_DECODE);
- buf = XDR_INLINE(&xdrs, auth_len);
- if (buf != NULL) {
- aup->aup_time = IXDR_GET_LONG(buf);
- str_len = IXDR_GET_U_LONG(buf);
- bcopy((caddr_t)buf, aup->aup_machname, (u_int)str_len);
- aup->aup_machname[str_len] = 0;
- str_len = RNDUP(str_len);
- buf += str_len / sizeof (long);
- aup->aup_uid = IXDR_GET_LONG(buf);
- aup->aup_gid = IXDR_GET_LONG(buf);
- gid_len = IXDR_GET_U_LONG(buf);
- if (gid_len > NGRPS) {
- stat = AUTH_BADCRED;
- goto done;
- }
- aup->aup_len = gid_len;
- for (i = 0; i < gid_len; i++) {
- aup->aup_gids[i] = IXDR_GET_LONG(buf);
- }
- /*
- * five is the smallest unix credentials structure -
- * timestamp, hostname len (0), uid, gid, and gids len (0).
- */
- if ((5 + gid_len) * BYTES_PER_XDR_UNIT + str_len > auth_len) {
- (void) printf("bad auth_len gid %d str %d auth %d\n",
- gid_len, str_len, auth_len);
- stat = AUTH_BADCRED;
- goto done;
- }
- } else if (! xdr_authunix_parms(&xdrs, aup)) {
- xdrs.x_op = XDR_FREE;
- (void)xdr_authunix_parms(&xdrs, aup);
- stat = AUTH_BADCRED;
- goto done;
- }
- rqst->rq_xprt->xp_verf.oa_flavor = AUTH_NULL;
- rqst->rq_xprt->xp_verf.oa_length = 0;
- stat = AUTH_OK;
- done:
- XDR_DESTROY(&xdrs);
- return (stat);
- }
-
-
- /*
- * Shorthand unix authenticator
- * Looks up longhand in a cache.
- */
- /*ARGSUSED*/
- enum auth_stat
- _svcauth_short(rqst, msg)
- struct svc_req *rqst;
- struct rpc_msg *msg;
- {
- return (AUTH_REJECTEDCRED);
- }
- Funky_Stuff
- len=`wc -c < svc_auth_unix.c`
- if [ $len != 4026 ] ; then
- echo error: svc_auth_unix.c was $len bytes long, should have been 4026
- fi
- echo x - svc_raw.c
- cat > svc_raw.c <<'Funky_Stuff'
- /* @(#)svc_raw.c 1.1 87/11/04 3.9 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- #if !defined(lint) && defined(SCCSIDS)
- static char sccsid[] = "@(#)svc_raw.c 1.15 87/08/11 Copyr 1984 Sun Micro";
- #endif
-
- /*
- * svc_raw.c, This a toy for simple testing and timing.
- * Interface to create an rpc client and server in the same UNIX process.
- * This lets us similate rpc and get rpc (round trip) overhead, without
- * any interference from the kernal.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- */
-
- #include <rpc/rpc.h>
-
-
- /*
- * This is the "network" that we will be moving data over
- */
- static struct svcraw_private {
- char _raw_buf[UDPMSGSIZE];
- SVCXPRT server;
- XDR xdr_stream;
- char verf_body[MAX_AUTH_BYTES];
- } *svcraw_private;
-
- static bool_t svcraw_recv();
- static enum xprt_stat svcraw_stat();
- static bool_t svcraw_getargs();
- static bool_t svcraw_reply();
- static bool_t svcraw_freeargs();
- static void svcraw_destroy();
-
- static struct xp_ops server_ops = {
- svcraw_recv,
- svcraw_stat,
- svcraw_getargs,
- svcraw_reply,
- svcraw_freeargs,
- svcraw_destroy
- };
-
- SVCXPRT *
- svcraw_create()
- {
- register struct svcraw_private *srp = svcraw_private;
-
- if (srp == 0) {
- srp = (struct svcraw_private *)calloc(1, sizeof (*srp));
- if (srp == 0)
- return (0);
- }
- srp->server.xp_sock = 0;
- srp->server.xp_port = 0;
- srp->server.xp_ops = &server_ops;
- srp->server.xp_verf.oa_base = srp->verf_body;
- xdrmem_create(&srp->xdr_stream, srp->_raw_buf, UDPMSGSIZE, XDR_FREE);
- return (&srp->server);
- }
-
- static enum xprt_stat
- svcraw_stat()
- {
-
- return (XPRT_IDLE);
- }
-
- static bool_t
- svcraw_recv(xprt, msg)
- SVCXPRT *xprt;
- struct rpc_msg *msg;
- {
- register struct svcraw_private *srp = svcraw_private;
- register XDR *xdrs;
-
- if (srp == 0)
- return (0);
- xdrs = &srp->xdr_stream;
- xdrs->x_op = XDR_DECODE;
- XDR_SETPOS(xdrs, 0);
- if (! xdr_callmsg(xdrs, msg))
- return (FALSE);
- return (TRUE);
- }
-
- static bool_t
- svcraw_reply(xprt, msg)
- SVCXPRT *xprt;
- struct rpc_msg *msg;
- {
- register struct svcraw_private *srp = svcraw_private;
- register XDR *xdrs;
-
- if (srp == 0)
- return (FALSE);
- xdrs = &srp->xdr_stream;
- xdrs->x_op = XDR_ENCODE;
- XDR_SETPOS(xdrs, 0);
- if (! xdr_replymsg(xdrs, msg))
- return (FALSE);
- (void)XDR_GETPOS(xdrs); /* called just for overhead */
- return (TRUE);
- }
-
- static bool_t
- svcraw_getargs(xprt, xdr_args, args_ptr)
- SVCXPRT *xprt;
- xdrproc_t xdr_args;
- caddr_t args_ptr;
- {
- register struct svcraw_private *srp = svcraw_private;
-
- if (srp == 0)
- return (FALSE);
- return ((*xdr_args)(&srp->xdr_stream, args_ptr));
- }
-
- static bool_t
- svcraw_freeargs(xprt, xdr_args, args_ptr)
- SVCXPRT *xprt;
- xdrproc_t xdr_args;
- caddr_t args_ptr;
- {
- register struct svcraw_private *srp = svcraw_private;
- register XDR *xdrs;
-
- if (srp == 0)
- return (FALSE);
- xdrs = &srp->xdr_stream;
- xdrs->x_op = XDR_FREE;
- return ((*xdr_args)(xdrs, args_ptr));
- }
-
- static void
- svcraw_destroy()
- {
- }
- Funky_Stuff
- len=`wc -c < svc_raw.c`
- if [ $len != 4120 ] ; then
- echo error: svc_raw.c was $len bytes long, should have been 4120
- fi
- echo x - svc_run.c
- cat > svc_run.c <<'Funky_Stuff'
- /* @(#)svc_run.c 1.3 87/11/13 3.9 RPCSRC */
- #if !defined(lint) && defined(SCCSIDS)
- static char sccsid[] = "@(#)svc_run.c 1.1 87/10/13 Copyr 1984 Sun Micro";
- #endif
-
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
-
- /*
- * This is the rpc server side idle loop
- * Wait for input, call server program.
- */
- #include <rpc/rpc.h>
- #include <sys/errno.h>
-
- void
- svc_run()
- {
- #ifdef FD_SETSIZE
- fd_set readfds;
- #else
- int readfds;
- #endif /* def FD_SETSIZE */
- extern int errno;
-
- for (;;) {
- #ifdef FD_SETSIZE
- readfds = svc_fdset;
- #else
- readfds = svc_fds;
- #endif /* def FD_SETSIZE */
- switch (select(_rpc_dtablesize(), &readfds, (int *)0, (int *)0,
- (struct timeval *)0)) {
- case -1:
- if (errno == EINTR) {
- continue;
- }
- perror("svc_run: - select failed");
- return;
- case 0:
- continue;
- default:
- svc_getreqset(&readfds);
- }
- }
- }
- Funky_Stuff
- len=`wc -c < svc_run.c`
- if [ $len != 2077 ] ; then
- echo error: svc_run.c was $len bytes long, should have been 2077
- fi
- echo x - svc_simple.c
- cat > svc_simple.c <<'Funky_Stuff'
- /* @(#)svc_simple.c 1.1 87/11/04 3.9 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- #if !defined(lint) && defined(SCCSIDS)
- static char sccsid[] = "@(#)svc_simple.c 1.18 87/08/11 Copyr 1984 Sun Micro";
- #endif
-
- /*
- * svc_simple.c
- * Simplified front end to rpc.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- */
-
- #include <stdio.h>
- #include <rpc/rpc.h>
- #include <sys/socket.h>
- #include <sys/time.h>
- #include <netdb.h>
-
- static struct proglst {
- char *(*p_progname)();
- int p_prognum;
- int p_procnum;
- xdrproc_t p_inproc, p_outproc;
- struct proglst *p_nxt;
- } *proglst;
- static void universal();
- static SVCXPRT *transp;
- struct proglst *pl;
-
- registerrpc(prognum, versnum, procnum, progname, inproc, outproc)
- char *(*progname)();
- xdrproc_t inproc, outproc;
- {
-
- if (procnum == NULLPROC) {
- (void) fprintf(stderr,
- "can't reassign procedure number %d\n", NULLPROC);
- return (-1);
- }
- if (transp == 0) {
- transp = svcudp_create(RPC_ANYSOCK);
- if (transp == NULL) {
- (void) fprintf(stderr, "couldn't create an rpc server\n");
- return (-1);
- }
- }
- (void) pmap_unset((u_long)prognum, (u_long)versnum);
- if (!svc_register(transp, (u_long)prognum, (u_long)versnum,
- universal, IPPROTO_UDP)) {
- (void) fprintf(stderr, "couldn't register prog %d vers %d\n",
- prognum, versnum);
- return (-1);
- }
- pl = (struct proglst *)malloc(sizeof(struct proglst));
- if (pl == NULL) {
- (void) fprintf(stderr, "registerrpc: out of memory\n");
- return (-1);
- }
- pl->p_progname = progname;
- pl->p_prognum = prognum;
- pl->p_procnum = procnum;
- pl->p_inproc = inproc;
- pl->p_outproc = outproc;
- pl->p_nxt = proglst;
- proglst = pl;
- return (0);
- }
-
- static void
- universal(rqstp, transp)
- struct svc_req *rqstp;
- SVCXPRT *transp;
- {
- int prog, proc;
- char *outdata;
- char xdrbuf[UDPMSGSIZE];
- struct proglst *pl;
-
- /*
- * enforce "procnum 0 is echo" convention
- */
- if (rqstp->rq_proc == NULLPROC) {
- if (svc_sendreply(transp, xdr_void, (char *)NULL) == FALSE) {
- (void) fprintf(stderr, "xxx\n");
- exit(1);
- }
- return;
- }
- prog = rqstp->rq_prog;
- proc = rqstp->rq_proc;
- for (pl = proglst; pl != NULL; pl = pl->p_nxt)
- if (pl->p_prognum == prog && pl->p_procnum == proc) {
- /* decode arguments into a CLEAN buffer */
- bzero(xdrbuf, sizeof(xdrbuf)); /* required ! */
- if (!svc_getargs(transp, pl->p_inproc, xdrbuf)) {
- svcerr_decode(transp);
- return;
- }
- outdata = (*(pl->p_progname))(xdrbuf);
- if (outdata == NULL && pl->p_outproc != xdr_void)
- /* there was an error */
- return;
- if (!svc_sendreply(transp, pl->p_outproc, outdata)) {
- (void) fprintf(stderr,
- "trouble replying to prog %d\n",
- pl->p_prognum);
- exit(1);
- }
- /* free the decoded arguments */
- (void)svc_freeargs(transp, pl->p_inproc, xdrbuf);
- return;
- }
- (void) fprintf(stderr, "never registered prog %d\n", prog);
- exit(1);
- }
-
- Funky_Stuff
- len=`wc -c < svc_simple.c`
- if [ $len != 4088 ] ; then
- echo error: svc_simple.c was $len bytes long, should have been 4088
- fi
- echo x - svc_tcp.c
- cat > svc_tcp.c <<'Funky_Stuff'
- /* @(#)svc_tcp.c 1.2 87/11/09 3.9 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- #if !defined(lint) && defined(SCCSIDS)
- static char sccsid[] = "@(#)svc_tcp.c 1.21 87/08/11 Copyr 1984 Sun Micro";
- #endif
-
- /*
- * svc_tcp.c, Server side for TCP/IP based RPC.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- *
- * Actually implements two flavors of transporter -
- * a tcp rendezvouser (a listner and connection establisher)
- * and a record/tcp stream.
- */
-
- #include <stdio.h>
- #include <rpc/rpc.h>
- #include <sys/socket.h>
- #include <sys/time.h>
- #include <errno.h>
- extern bool_t abort();
- extern errno;
-
- /*
- * Ops vector for TCP/IP based rpc service handle
- */
- static bool_t svctcp_recv();
- static enum xprt_stat svctcp_stat();
- static bool_t svctcp_getargs();
- static bool_t svctcp_reply();
- static bool_t svctcp_freeargs();
- static void svctcp_destroy();
-
- static struct xp_ops svctcp_op = {
- svctcp_recv,
- svctcp_stat,
- svctcp_getargs,
- svctcp_reply,
- svctcp_freeargs,
- svctcp_destroy
- };
-
- /*
- * Ops vector for TCP/IP rendezvous handler
- */
- static bool_t rendezvous_request();
- static enum xprt_stat rendezvous_stat();
-
- static struct xp_ops svctcp_rendezvous_op = {
- rendezvous_request,
- rendezvous_stat,
- abort,
- abort,
- abort,
- svctcp_destroy
- };
-
- static int readtcp(), writetcp();
- static SVCXPRT *makefd_xprt();
-
- struct tcp_rendezvous { /* kept in xprt->xp_p1 */
- u_int sendsize;
- u_int recvsize;
- };
-
- struct tcp_conn { /* kept in xprt->xp_p1 */
- enum xprt_stat strm_stat;
- u_long x_id;
- XDR xdrs;
- char verf_body[MAX_AUTH_BYTES];
- };
-
- /*
- * Usage:
- * xprt = svctcp_create(sock, send_buf_size, recv_buf_size);
- *
- * Creates, registers, and returns a (rpc) tcp based transporter.
- * Once *xprt is initialized, it is registered as a transporter
- * see (svc.h, xprt_register). This routine returns
- * a NULL if a problem occurred.
- *
- * If sock<0 then a socket is created, else sock is used.
- * If the socket, sock is not bound to a port then svctcp_create
- * binds it to an arbitrary port. The routine then starts a tcp
- * listener on the socket's associated port. In any (successful) case,
- * xprt->xp_sock is the registered socket number and xprt->xp_port is the
- * associated port number.
- *
- * Since tcp streams do buffered io similar to stdio, the caller can specify
- * how big the send and receive buffers are via the second and third parms;
- * 0 => use the system default.
- */
- SVCXPRT *
- svctcp_create(sock, sendsize, recvsize)
- register int sock;
- u_int sendsize;
- u_int recvsize;
- {
- bool_t madesock = FALSE;
- register SVCXPRT *xprt;
- register struct tcp_rendezvous *r;
- struct sockaddr_in addr;
- int len = sizeof(struct sockaddr_in);
-
- if (sock == RPC_ANYSOCK) {
- if ((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
- perror("svctcp_.c - udp socket creation problem");
- return ((SVCXPRT *)NULL);
- }
- madesock = TRUE;
- }
- bzero((char *)&addr, sizeof (addr));
- addr.sin_family = AF_INET;
- if (bindresvport(sock, &addr)) {
- addr.sin_port = 0;
- (void)bind(sock, (struct sockaddr *)&addr, len);
- }
- if ((getsockname(sock, (struct sockaddr *)&addr, &len) != 0) ||
- (listen(sock, 2) != 0)) {
- perror("svctcp_.c - cannot getsockname or listen");
- if (madesock)
- (void)close(sock);
- return ((SVCXPRT *)NULL);
- }
- r = (struct tcp_rendezvous *)mem_alloc(sizeof(*r));
- if (r == NULL) {
- (void) fprintf(stderr, "svctcp_create: out of memory\n");
- return (NULL);
- }
- r->sendsize = sendsize;
- r->recvsize = recvsize;
- xprt = (SVCXPRT *)mem_alloc(sizeof(SVCXPRT));
- if (xprt == NULL) {
- (void) fprintf(stderr, "svctcp_create: out of memory\n");
- return (NULL);
- }
- xprt->xp_p2 = NULL;
- xprt->xp_p1 = (caddr_t)r;
- xprt->xp_verf = _null_auth;
- xprt->xp_ops = &svctcp_rendezvous_op;
- xprt->xp_port = ntohs(addr.sin_port);
- xprt->xp_sock = sock;
- xprt_register(xprt);
- return (xprt);
- }
-
- /*
- * Like svtcp_create(), except the routine takes any *open* UNIX file
- * descriptor as its first input.
- */
- SVCXPRT *
- svcfd_create(fd, sendsize, recvsize)
- int fd;
- u_int sendsize;
- u_int recvsize;
- {
-
- return (makefd_xprt(fd, sendsize, recvsize));
- }
-
- static SVCXPRT *
- makefd_xprt(fd, sendsize, recvsize)
- int fd;
- u_int sendsize;
- u_int recvsize;
- {
- register SVCXPRT *xprt;
- register struct tcp_conn *cd;
-
- xprt = (SVCXPRT *)mem_alloc(sizeof(SVCXPRT));
- if (xprt == (SVCXPRT *)NULL) {
- (void) fprintf(stderr, "svc_tcp: makefd_xprt: out of memory\n");
- goto done;
- }
- cd = (struct tcp_conn *)mem_alloc(sizeof(struct tcp_conn));
- if (cd == (struct tcp_conn *)NULL) {
- (void) fprintf(stderr, "svc_tcp: makefd_xprt: out of memory\n");
- mem_free((char *) xprt, sizeof(SVCXPRT));
- xprt = (SVCXPRT *)NULL;
- goto done;
- }
- cd->strm_stat = XPRT_IDLE;
- xdrrec_create(&(cd->xdrs), sendsize, recvsize,
- (caddr_t)xprt, readtcp, writetcp);
- xprt->xp_p2 = NULL;
- xprt->xp_p1 = (caddr_t)cd;
- xprt->xp_verf.oa_base = cd->verf_body;
- xprt->xp_addrlen = 0;
- xprt->xp_ops = &svctcp_op; /* truely deals with calls */
- xprt->xp_port = 0; /* this is a connection, not a rendezvouser */
- xprt->xp_sock = fd;
- xprt_register(xprt);
- done:
- return (xprt);
- }
-
- static bool_t
- rendezvous_request(xprt)
- register SVCXPRT *xprt;
- {
- int sock;
- struct tcp_rendezvous *r;
- struct sockaddr_in addr;
- int len;
-
- r = (struct tcp_rendezvous *)xprt->xp_p1;
- again:
- len = sizeof(struct sockaddr_in);
- if ((sock = accept(xprt->xp_sock, (struct sockaddr *)&addr,
- &len)) < 0) {
- if (errno == EINTR)
- goto again;
- return (FALSE);
- }
- /*
- * make a new transporter (re-uses xprt)
- */
- xprt = makefd_xprt(sock, r->sendsize, r->recvsize);
- xprt->xp_raddr = addr;
- xprt->xp_addrlen = len;
- return (FALSE); /* there is never an rpc msg to be processed */
- }
-
- static enum xprt_stat
- rendezvous_stat()
- {
-
- return (XPRT_IDLE);
- }
-
- static void
- svctcp_destroy(xprt)
- register SVCXPRT *xprt;
- {
- register struct tcp_conn *cd = (struct tcp_conn *)xprt->xp_p1;
-
- xprt_unregister(xprt);
- (void)close(xprt->xp_sock);
- if (xprt->xp_port != 0) {
- /* a rendezvouser socket */
- xprt->xp_port = 0;
- } else {
- /* an actual connection socket */
- XDR_DESTROY(&(cd->xdrs));
- }
- mem_free((caddr_t)cd, sizeof(struct tcp_conn));
- mem_free((caddr_t)xprt, sizeof(SVCXPRT));
- }
-
- /*
- * All read operations timeout after 35 seconds.
- * A timeout is fatal for the connection.
- */
- static struct timeval wait_per_try = { 35, 0 };
-
- /*
- * reads data from the tcp conection.
- * any error is fatal and the connection is closed.
- * (And a read of zero bytes is a half closed stream => error.)
- */
- static int
- readtcp(xprt, buf, len)
- register SVCXPRT *xprt;
- caddr_t buf;
- register int len;
- {
- register int sock = xprt->xp_sock;
- #ifdef FD_SETSIZE
- fd_set mask;
- fd_set readfds;
-
- FD_ZERO(&mask);
- FD_SET(sock, &mask);
- #else
- register int mask = 1 << sock;
- int readfds;
- #endif /* def FD_SETSIZE */
- do {
- readfds = mask;
- if (select(_rpc_dtablesize(), &readfds, (int*)NULL, (int*)NULL,
- &wait_per_try) <= 0) {
- if (errno == EINTR) {
- continue;
- }
- goto fatal_err;
- }
- #ifdef FD_SETSIZE
- } while (!FD_ISSET(sock, &readfds));
- #else
- } while (readfds != mask);
- #endif /* def FD_SETSIZE */
- if ((len = read(sock, buf, len)) > 0) {
- return (len);
- }
- fatal_err:
- ((struct tcp_conn *)(xprt->xp_p1))->strm_stat = XPRT_DIED;
- return (-1);
- }
-
- /*
- * writes data to the tcp connection.
- * Any error is fatal and the connection is closed.
- */
- static int
- writetcp(xprt, buf, len)
- register SVCXPRT *xprt;
- caddr_t buf;
- int len;
- {
- register int i, cnt;
-
- for (cnt = len; cnt > 0; cnt -= i, buf += i) {
- if ((i = write(xprt->xp_sock, buf, cnt)) < 0) {
- ((struct tcp_conn *)(xprt->xp_p1))->strm_stat =
- XPRT_DIED;
- return (-1);
- }
- }
- return (len);
- }
-
- static enum xprt_stat
- svctcp_stat(xprt)
- SVCXPRT *xprt;
- {
- register struct tcp_conn *cd =
- (struct tcp_conn *)(xprt->xp_p1);
-
- if (cd->strm_stat == XPRT_DIED)
- return (XPRT_DIED);
- if (! xdrrec_eof(&(cd->xdrs)))
- return (XPRT_MOREREQS);
- return (XPRT_IDLE);
- }
-
- static bool_t
- svctcp_recv(xprt, msg)
- SVCXPRT *xprt;
- register struct rpc_msg *msg;
- {
- register struct tcp_conn *cd =
- (struct tcp_conn *)(xprt->xp_p1);
- register XDR *xdrs = &(cd->xdrs);
-
- xdrs->x_op = XDR_DECODE;
- (void)xdrrec_skiprecord(xdrs);
- if (xdr_callmsg(xdrs, msg)) {
- cd->x_id = msg->rm_xid;
- return (TRUE);
- }
- return (FALSE);
- }
-
- static bool_t
- svctcp_getargs(xprt, xdr_args, args_ptr)
- SVCXPRT *xprt;
- xdrproc_t xdr_args;
- caddr_t args_ptr;
- {
-
- return ((*xdr_args)(&(((struct tcp_conn *)(xprt->xp_p1))->xdrs), args_ptr));
- }
-
- static bool_t
- svctcp_freeargs(xprt, xdr_args, args_ptr)
- SVCXPRT *xprt;
- xdrproc_t xdr_args;
- caddr_t args_ptr;
- {
- register XDR *xdrs =
- &(((struct tcp_conn *)(xprt->xp_p1))->xdrs);
-
- xdrs->x_op = XDR_FREE;
- return ((*xdr_args)(xdrs, args_ptr));
- }
-
- static bool_t
- svctcp_reply(xprt, msg)
- SVCXPRT *xprt;
- register struct rpc_msg *msg;
- {
- register struct tcp_conn *cd =
- (struct tcp_conn *)(xprt->xp_p1);
- register XDR *xdrs = &(cd->xdrs);
- register bool_t stat;
-
- xdrs->x_op = XDR_ENCODE;
- msg->rm_xid = cd->x_id;
- stat = xdr_replymsg(xdrs, msg);
- (void)xdrrec_endofrecord(xdrs, TRUE);
- return (stat);
- }
- Funky_Stuff
- len=`wc -c < svc_tcp.c`
- if [ $len != 10278 ] ; then
- echo error: svc_tcp.c was $len bytes long, should have been 10278
- fi
- echo x - svc_udp.c
- cat > svc_udp.c <<'Funky_Stuff'
- /* @(#)svc_udp.c 1.1 87/11/04 3.9 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- #if !defined(lint) && defined(SCCSIDS)
- static char sccsid[] = "@(#)svc_udp.c 1.21 87/08/11 Copyr 1984 Sun Micro";
- #endif
-
- /*
- * svc_udp.c,
- * Server side for UDP/IP based RPC. (Does some caching in the hopes of
- * achieving execute-at-most-once semantics.)
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- */
-
- #include <stdio.h>
- #include <rpc/rpc.h>
- #include <sys/socket.h>
- #include <errno.h>
-
-
- #define rpc_buffer(xprt) ((xprt)->xp_p1)
- #define MAX(a, b) ((a > b) ? a : b)
-
- static bool_t svcudp_recv();
- static bool_t svcudp_reply();
- static enum xprt_stat svcudp_stat();
- static bool_t svcudp_getargs();
- static bool_t svcudp_freeargs();
- static void svcudp_destroy();
-
- static struct xp_ops svcudp_op = {
- svcudp_recv,
- svcudp_stat,
- svcudp_getargs,
- svcudp_reply,
- svcudp_freeargs,
- svcudp_destroy
- };
-
- extern int errno;
-
- /*
- * kept in xprt->xp_p2
- */
- struct svcudp_data {
- u_int su_iosz; /* byte size of send.recv buffer */
- u_long su_xid; /* transaction id */
- XDR su_xdrs; /* XDR handle */
- char su_verfbody[MAX_AUTH_BYTES]; /* verifier body */
- char * su_cache; /* cached data, NULL if no cache */
- };
- #define su_data(xprt) ((struct svcudp_data *)(xprt->xp_p2))
-
- /*
- * Usage:
- * xprt = svcudp_create(sock);
- *
- * If sock<0 then a socket is created, else sock is used.
- * If the socket, sock is not bound to a port then svcudp_create
- * binds it to an arbitrary port. In any (successful) case,
- * xprt->xp_sock is the registered socket number and xprt->xp_port is the
- * associated port number.
- * Once *xprt is initialized, it is registered as a transporter;
- * see (svc.h, xprt_register).
- * The routines returns NULL if a problem occurred.
- */
- SVCXPRT *
- svcudp_bufcreate(sock, sendsz, recvsz)
- register int sock;
- u_int sendsz, recvsz;
- {
- bool_t madesock = FALSE;
- register SVCXPRT *xprt;
- register struct svcudp_data *su;
- struct sockaddr_in addr;
- int len = sizeof(struct sockaddr_in);
-
- if (sock == RPC_ANYSOCK) {
- if ((sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
- perror("svcudp_create: socket creation problem");
- return ((SVCXPRT *)NULL);
- }
- madesock = TRUE;
- }
- bzero((char *)&addr, sizeof (addr));
- addr.sin_family = AF_INET;
- if (bindresvport(sock, &addr)) {
- addr.sin_port = 0;
- (void)bind(sock, (struct sockaddr *)&addr, len);
- }
- if (getsockname(sock, (struct sockaddr *)&addr, &len) != 0) {
- perror("svcudp_create - cannot getsockname");
- if (madesock)
- (void)close(sock);
- return ((SVCXPRT *)NULL);
- }
- xprt = (SVCXPRT *)mem_alloc(sizeof(SVCXPRT));
- if (xprt == NULL) {
- (void)fprintf(stderr, "svcudp_create: out of memory\n");
- return (NULL);
- }
- su = (struct svcudp_data *)mem_alloc(sizeof(*su));
- if (su == NULL) {
- (void)fprintf(stderr, "svcudp_create: out of memory\n");
- return (NULL);
- }
- su->su_iosz = ((MAX(sendsz, recvsz) + 3) / 4) * 4;
- if ((rpc_buffer(xprt) = mem_alloc(su->su_iosz)) == NULL) {
- (void)fprintf(stderr, "svcudp_create: out of memory\n");
- return (NULL);
- }
- xdrmem_create(
- &(su->su_xdrs), rpc_buffer(xprt), su->su_iosz, XDR_DECODE);
- su->su_cache = NULL;
- xprt->xp_p2 = (caddr_t)su;
- xprt->xp_verf.oa_base = su->su_verfbody;
- xprt->xp_ops = &svcudp_op;
- xprt->xp_port = ntohs(addr.sin_port);
- xprt->xp_sock = sock;
- xprt_register(xprt);
- return (xprt);
- }
-
- SVCXPRT *
- svcudp_create(sock)
- int sock;
- {
-
- return(svcudp_bufcreate(sock, UDPMSGSIZE, UDPMSGSIZE));
- }
-
- static enum xprt_stat
- svcudp_stat(xprt)
- SVCXPRT *xprt;
- {
-
- return (XPRT_IDLE);
- }
-
- static bool_t
- svcudp_recv(xprt, msg)
- register SVCXPRT *xprt;
- struct rpc_msg *msg;
- {
- register struct svcudp_data *su = su_data(xprt);
- register XDR *xdrs = &(su->su_xdrs);
- register int rlen;
- char *reply;
- u_long replylen;
-
- again:
- xprt->xp_addrlen = sizeof(struct sockaddr_in);
- rlen = recvfrom(xprt->xp_sock, rpc_buffer(xprt), (int) su->su_iosz,
- 0, (struct sockaddr *)&(xprt->xp_raddr), &(xprt->xp_addrlen));
- if (rlen == -1 && errno == EINTR)
- goto again;
- if (rlen < 4*sizeof(u_long))
- return (FALSE);
- xdrs->x_op = XDR_DECODE;
- XDR_SETPOS(xdrs, 0);
- if (! xdr_callmsg(xdrs, msg))
- return (FALSE);
- su->su_xid = msg->rm_xid;
- if (su->su_cache != NULL) {
- if (cache_get(xprt, msg, &reply, &replylen)) {
- (void) sendto(xprt->xp_sock, reply, (int) replylen, 0,
- (struct sockaddr *) &xprt->xp_raddr, (int) &xprt->xp_addrlen);
- return(FALSE);
- }
- }
- return (TRUE);
- }
-
- static bool_t
- svcudp_reply(xprt, msg)
- register SVCXPRT *xprt;
- struct rpc_msg *msg;
- {
- register struct svcudp_data *su = su_data(xprt);
- register XDR *xdrs = &(su->su_xdrs);
- register int slen;
- register bool_t stat = FALSE;
-
- xdrs->x_op = XDR_ENCODE;
- XDR_SETPOS(xdrs, 0);
- msg->rm_xid = su->su_xid;
- if (xdr_replymsg(xdrs, msg)) {
- slen = (int)XDR_GETPOS(xdrs);
- if (sendto(xprt->xp_sock, rpc_buffer(xprt), slen, 0,
- (struct sockaddr *)&(xprt->xp_raddr), xprt->xp_addrlen)
- == slen) {
- stat = TRUE;
- if (su->su_cache && slen >= 0) {
- cache_set(xprt, (u_long) slen);
- }
- }
- }
- return (stat);
- }
-
- static bool_t
- svcudp_getargs(xprt, xdr_args, args_ptr)
- SVCXPRT *xprt;
- xdrproc_t xdr_args;
- caddr_t args_ptr;
- {
-
- return ((*xdr_args)(&(su_data(xprt)->su_xdrs), args_ptr));
- }
-
- static bool_t
- svcudp_freeargs(xprt, xdr_args, args_ptr)
- SVCXPRT *xprt;
- xdrproc_t xdr_args;
- caddr_t args_ptr;
- {
- register XDR *xdrs = &(su_data(xprt)->su_xdrs);
-
- xdrs->x_op = XDR_FREE;
- return ((*xdr_args)(xdrs, args_ptr));
- }
-
- static void
- svcudp_destroy(xprt)
- register SVCXPRT *xprt;
- {
- register struct svcudp_data *su = su_data(xprt);
-
- xprt_unregister(xprt);
- (void)close(xprt->xp_sock);
- XDR_DESTROY(&(su->su_xdrs));
- mem_free(rpc_buffer(xprt), su->su_iosz);
- mem_free((caddr_t)su, sizeof(struct svcudp_data));
- mem_free((caddr_t)xprt, sizeof(SVCXPRT));
- }
-
-
- /***********this could be a separate file*********************/
-
- /*
- * Fifo cache for udp server
- * Copies pointers to reply buffers into fifo cache
- * Buffers are sent again if retransmissions are detected.
- */
-
- #define SPARSENESS 4 /* 75% sparse */
-
- #define CACHE_PERROR(msg) \
- (void) fprintf(stderr,"%s\n", msg)
-
- #define ALLOC(type, size) \
- (type *) mem_alloc((unsigned) (sizeof(type) * (size)))
-
- #define BZERO(addr, type, size) \
- bzero((char *) addr, sizeof(type) * (int) (size))
-
- /*
- * An entry in the cache
- */
- typedef struct cache_node *cache_ptr;
- struct cache_node {
- /*
- * Index into cache is xid, proc, vers, prog and address
- */
- u_long cache_xid;
- u_long cache_proc;
- u_long cache_vers;
- u_long cache_prog;
- struct sockaddr_in cache_addr;
- /*
- * The cached reply and length
- */
- char * cache_reply;
- u_long cache_replylen;
- /*
- * Next node on the list, if there is a collision
- */
- cache_ptr cache_next;
- };
-
-
-
- /*
- * The entire cache
- */
- struct udp_cache {
- u_long uc_size; /* size of cache */
- cache_ptr *uc_entries; /* hash table of entries in cache */
- cache_ptr *uc_fifo; /* fifo list of entries in cache */
- u_long uc_nextvictim; /* points to next victim in fifo list */
- u_long uc_prog; /* saved program number */
- u_long uc_vers; /* saved version number */
- u_long uc_proc; /* saved procedure number */
- struct sockaddr_in uc_addr; /* saved caller's address */
- };
-
-
- /*
- * the hashing function
- */
- #define CACHE_LOC(transp, xid) \
- (xid % (SPARSENESS*((struct udp_cache *) su_data(transp)->su_cache)->uc_size))
-
-
- /*
- * Enable use of the cache.
- * Note: there is no disable.
- */
- svcudp_enablecache(transp, size)
- SVCXPRT *transp;
- u_long size;
- {
- struct svcudp_data *su = su_data(transp);
- struct udp_cache *uc;
-
- if (su->su_cache != NULL) {
- CACHE_PERROR("enablecache: cache already enabled");
- return(0);
- }
- uc = ALLOC(struct udp_cache, 1);
- if (uc == NULL) {
- CACHE_PERROR("enablecache: could not allocate cache");
- return(0);
- }
- uc->uc_size = size;
- uc->uc_nextvictim = 0;
- uc->uc_entries = ALLOC(cache_ptr, size * SPARSENESS);
- if (uc->uc_entries == NULL) {
- CACHE_PERROR("enablecache: could not allocate cache data");
- return(0);
- }
- BZERO(uc->uc_entries, cache_ptr, size * SPARSENESS);
- uc->uc_fifo = ALLOC(cache_ptr, size);
- if (uc->uc_fifo == NULL) {
- CACHE_PERROR("enablecache: could not allocate cache fifo");
- return(0);
- }
- BZERO(uc->uc_fifo, cache_ptr, size);
- su->su_cache = (char *) uc;
- return(1);
- }
-
-
- /*
- * Set an entry in the cache
- */
- static
- cache_set(xprt, replylen)
- SVCXPRT *xprt;
- u_long replylen;
- {
- register cache_ptr victim;
- register cache_ptr *vicp;
- register struct svcudp_data *su = su_data(xprt);
- struct udp_cache *uc = (struct udp_cache *) su->su_cache;
- u_int loc;
- char *newbuf;
-
- /*
- * Find space for the new entry, either by
- * reusing an old entry, or by mallocing a new one
- */
- victim = uc->uc_fifo[uc->uc_nextvictim];
- if (victim != NULL) {
- loc = CACHE_LOC(xprt, victim->cache_xid);
- for (vicp = &uc->uc_entries[loc];
- *vicp != NULL && *vicp != victim;
- vicp = &(*vicp)->cache_next)
- ;
- if (*vicp == NULL) {
- CACHE_PERROR("cache_set: victim not found");
- return;
- }
- *vicp = victim->cache_next; /* remote from cache */
- newbuf = victim->cache_reply;
- } else {
- victim = ALLOC(struct cache_node, 1);
- if (victim == NULL) {
- CACHE_PERROR("cache_set: victim alloc failed");
- return;
- }
- newbuf = mem_alloc(su->su_iosz);
- if (newbuf == NULL) {
- CACHE_PERROR("cache_set: could not allocate new rpc_buffer");
- return;
- }
- }
-
- /*
- * Store it away
- */
- victim->cache_replylen = replylen;
- victim->cache_reply = rpc_buffer(xprt);
- rpc_buffer(xprt) = newbuf;
- xdrmem_create(&(su->su_xdrs), rpc_buffer(xprt), su->su_iosz, XDR_ENCODE);
- victim->cache_xid = su->su_xid;
- victim->cache_proc = uc->uc_proc;
- victim->cache_vers = uc->uc_vers;
- victim->cache_prog = uc->uc_prog;
- victim->cache_addr = uc->uc_addr;
- loc = CACHE_LOC(xprt, victim->cache_xid);
- victim->cache_next = uc->uc_entries[loc];
- uc->uc_entries[loc] = victim;
- uc->uc_fifo[uc->uc_nextvictim++] = victim;
- uc->uc_nextvictim %= uc->uc_size;
- }
-
- /*
- * Try to get an entry from the cache
- * return 1 if found, 0 if not found
- */
- static
- cache_get(xprt, msg, replyp, replylenp)
- SVCXPRT *xprt;
- struct rpc_msg *msg;
- char **replyp;
- u_long *replylenp;
- {
- u_int loc;
- register cache_ptr ent;
- register struct svcudp_data *su = su_data(xprt);
- register struct udp_cache *uc = (struct udp_cache *) su->su_cache;
-
- # define EQADDR(a1, a2) (bcmp((char*)&a1, (char*)&a2, sizeof(a1)) == 0)
-
- loc = CACHE_LOC(xprt, su->su_xid);
- for (ent = uc->uc_entries[loc]; ent != NULL; ent = ent->cache_next) {
- if (ent->cache_xid == su->su_xid &&
- ent->cache_proc == uc->uc_proc &&
- ent->cache_vers == uc->uc_vers &&
- ent->cache_prog == uc->uc_prog &&
- EQADDR(ent->cache_addr, uc->uc_addr)) {
- *replyp = ent->cache_reply;
- *replylenp = ent->cache_replylen;
- return(1);
- }
- }
- /*
- * Failed to find entry
- * Remember a few things so we can do a set later
- */
- uc->uc_proc = msg->rm_call.cb_proc;
- uc->uc_vers = msg->rm_call.cb_vers;
- uc->uc_prog = msg->rm_call.cb_prog;
- uc->uc_addr = xprt->xp_raddr;
- return(0);
- }
-
- Funky_Stuff
- len=`wc -c < svc_udp.c`
- if [ $len != 12207 ] ; then
- echo error: svc_udp.c was $len bytes long, should have been 12207
- fi
- echo x - types.h
- cat > types.h <<'Funky_Stuff'
- /* @(#)types.h 1.2 87/11/07 3.9 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- /* @(#)types.h 1.18 87/07/24 SMI */
-
- /*
- * Rpc additions to <sys/types.h>
- */
- #ifndef __TYPES_RPC_HEADER__
- #define __TYPES_RPC_HEADER__
-
- #define bool_t int
- #define enum_t int
- #define FALSE (0)
- #define TRUE (1)
- #define __dontcare__ -1
- #ifndef NULL
- # define NULL 0
- #endif
-
- extern char *malloc();
- #define mem_alloc(bsize) malloc(bsize)
- #define mem_free(ptr, bsize) free(ptr)
-
- #ifndef makedev /* ie, we haven't already included it */
- #include <sys/types.h>
- #endif
- /*#include <sys/time.h>*/
-
- #endif /* ndef __TYPES_RPC_HEADER__ */
- Funky_Stuff
- len=`wc -c < types.h`
- if [ $len != 1847 ] ; then
- echo error: types.h was $len bytes long, should have been 1847
- fi
- cd ..
- echo more files to follow
- exit
-