diff options
Diffstat (limited to 'lib/libc/rpc')
41 files changed, 8555 insertions, 0 deletions
diff --git a/lib/libc/rpc/DISCLAIMER b/lib/libc/rpc/DISCLAIMER new file mode 100644 index 0000000..1a66d5f --- /dev/null +++ b/lib/libc/rpc/DISCLAIMER @@ -0,0 +1,28 @@ +/* + * 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 + */ diff --git a/lib/libc/rpc/Makefile.inc b/lib/libc/rpc/Makefile.inc new file mode 100644 index 0000000..8776d9d --- /dev/null +++ b/lib/libc/rpc/Makefile.inc @@ -0,0 +1,39 @@ +# @(#)Makefile 5.11 (Berkeley) 9/6/90 + +.PATH: ${.CURDIR}/rpc ${.CURDIR}/. +CFLAGS+=-I${.CURDIR} -I${.CURDIR}/rpc +SRCS+= auth_none.c auth_unix.c authunix_prot.c bindresvport.c \ + clnt_generic.c clnt_perror.c clnt_raw.c clnt_simple.c clnt_tcp.c \ + clnt_udp.c rpc_dtablesize.c get_myaddress.c getrpcent.c getrpcport.c \ + pmap_clnt.c pmap_getmaps.c pmap_getport.c pmap_prot.c \ + pmap_prot2.c pmap_rmt.c rpc_prot.c rpc_commondata.c rpc_callmsg.c \ + svc.c svc_auth.c svc_auth_unix.c svc_raw.c svc_run.c svc_simple.c \ + svc_tcp.c svc_udp.c xdr.c xdr_array.c xdr_mem.c \ + xdr_rec.c xdr_reference.c xdr_stdio.c + +# +# XXX -- rstat.1 and rstat_svc.8 shouldn't really be here +# but there's no rstat command, don't know why, so I'm +# leaving them here in case they're needed sometime later. +# Paul. +# + +MAN1+= rpc/rstat.1 +MAN3+= rpc/bindresvport.3 rpc/getrpcent.3 rpc/getrpcport.3 rpc/rpc.3 rpc/xdr.3 +MAN5+= rpc/rpc.5 +MAN8+= rpc/rstat_svc.8 + + +UNSUPPORTED+= xdr_float.c + +HDRS+= auth.h auth_unix.h clnt.h pmap_clnt.h \ + pmap_prot.h pmap_rmt.h rpc.h rpc_msg.h svc.h svc_auth.h types.h xdr.h + +beforeinstall: ${HDRS} + @-if [ ! -d ${DESTDIR}/usr/include/rpc ]; then \ + mkdir ${DESTDIR}/usr/include/rpc; \ + chown ${BINOWN}.${BINGRP} ${DESTDIR}/usr/include/rpc; \ + chmod 755 ${DESTDIR}/usr/include/rpc; \ + fi + cd ${.CURDIR}/rpc; install -c -o ${BINOWN} -g ${BINGRP} -m 444 ${HDRS} \ + ${DESTDIR}/usr/include/rpc diff --git a/lib/libc/rpc/README b/lib/libc/rpc/README new file mode 100644 index 0000000..ad9d70f --- /dev/null +++ b/lib/libc/rpc/README @@ -0,0 +1,233 @@ +RPCSRC 4.0 7/11/89 + +This distribution contains Sun Microsystem's implementation of the +RPC and XDR protocols and is compatible with 4.2BSD and 4.3BSD. Also +included is complete documentation, utilities, RPC service +specification files, and demonstration services in the format used by +the RPC protocol compiler (rpcgen). See WHAT'S NEW below for +details. + +NOTE ABOUT SECURE RPC: + +This release of RPCSRC contains most of the code needed to implement +Secure RPC (see "DES Authentication" in the RPC Protocol Specification, +doc/rpc.rfc.ms). Due to legal considerations, we are unable to +distribute an implementation of DES, the Data Encryption Standard, which +Secure RPC requires. For this reason, all of the files, documentation, and +programs associated with Secure RPC have been placed into a separate +directory, secure_rpc. The RPC library contained in the main body of this +release *DOES NOT* support Secure RPC. See secure_rpc/README for more +details. (A DES library was posted in Volume 18 of comp.sources.unix.) + +If you wish to report bugs found in this release, send mail to: + +Portable ONC/NFS +Sun Microsystems, Inc +MS 12-33 +2550 Garcia Avenue +Mountain View, CA 94043 + +or send Email to nfsnet@sun.com (the Internet) or sun!nfsnet (Usenet). + +ROADMAP + +The directory hierarchy is as follows: + + demo/ Various demonstration services + demo/dir Remote directory lister + demo/msg Remote console message delivery service + demo/sort Remote sort service + + doc/ Documentation for RPC, XDR and NFS in "-ms" format. + + etc/ Utilities (rpcinfo and portmap). portmap must be + started by root before any other RPC network services are + used. SEE BELOW FOR BUGFIX TO 4.3BSD COMPILER. + + man/ Manual pages for RPC library, rpcgen, and utilities. + + rpc/ The RPC and XDR library. SEE BELOW + FOR BUGFIX TO 4.2BSD COMPILER. + + rpcgen/ The RPC Language compiler (for .x files) + + rpcsvc/ Service definition files for various services and the + server and client code for the Remote Status service. + + secure_rpc/ The files in this directory are used to build a version of + the RPC library with DES Authentication. See the README + file in that directory for more details. + +BUILD INSTRUCTIONS + +Makefiles can be found in all directories except for man. The +Makefile in the top directory will cause these others to be invoked +(except for in the doc, man and demo directories), in turn building the +entire release. + +WARNING! THE DEFAULT INSTALLATION PROCEDURES WILL INSTALL FILES +IN /usr/include, /usr/lib, /usr/bin and /etc. + +The master RPC include file, rpc/rpc.h, is used by all programs and +routines that use RPC. It includes other RPC and system include files +needed by the RPC system. PLEASE NOTE: If your system has NFS, it +may have been based on Sun's NFS Source. The include files installed +by this package may duplicate include files you will find on your NFS +system. The RPCSRC 4.0 include files are upwardly compatible to all +NFS Source include files as of the date of this distribution (not +including any new definitions or declarations added by your system +vendor). HOWEVER: Please read the comments towards the end of +rpc/rpc.h regarding rpc/netdb.h. You may need to uncomment the +inclusion of that file if the structures it defines are already +defined by your system's include files. + +After making any compiler fixes that are needed (see below), at +the top directory, type: + + make install + +For all installations, the Makefile macro DESTDIR is prepended to the +installation path. It is defined to be null in the Makefiles, so +installations are relative to root. (You will probably need root +privileges for installing the files under the default path.) To +install the files under some other tree (e.g., /usr/local), use the +command: + + make install DESTDIR=/usr/local + +This will place the include files in /usr/local/usr/include, the RPC +library in /usr/local/usr/lib, rpcgen in /usr/local/usr/bin, and the +utilities in /usr/local/etc. You'll have to edit the Makefiles or +install the files by hand if you want to do anything other than this +kind of relocation of the installation tree. + +The RPC library will be built and installed first. By default it is +installed in /usr/lib as "librpclib.a". The directory +/usr/include/rpc will also be created, and several header files will +be installed there. ALL RPC SERVICES INCLUDE THESE HEADER FILES. + +The programs in etc/ link in routines from librpclib.a. If you change +where it is installed, be sure to edit etc/'s Makefile to reflect this. +These programs are installed in /etc. PORTMAP MUST BE RUNNING ON +YOUR SYSTEM BEFORE YOU START ANY OTHER RPC SERVICE. + +rpcgen is installed in /usr/bin. This program is required to build +the demonstration services in demo and the rstat client and server in +rpcsvc/. + +The rpcsvc/ directory will install its files in the directory +/usr/include/rpcsvc. The Remote Status service (rstat_svc) will be +compiled and installed in /etc. If you wish to make this service +available, you should either start this service when needed or have +it started at boot time by invoking it in your /etc/rc.local script. +(Be sure that portmap is started first!) Sun has modified its +version of inetd to automatically start RPC services. (Use "make +LIB=" when building rstat on a Sun Workstation.) The Remote Status +client (rstat) will be installed in /usr/bin. This program queries +the rstat_svc on a remote host and prints a system status summary +similar to the one printed by "uptime". + +The documentation is not built during the "make install" command. +Typing "make" in the doc directory will cause all of the manuals to +be formatted using nroff into a single file. We have had a report +that certain "troff" equivalents have trouble processing the full +manual. If you have trouble, try building the manuals individually +(see the Makefile). + +The demonstration services in the demo directory are not built by the +top-level "make install" command. To build these, cd to the demo +directory and enter "make". The three services will be built. +RPCGEN MUST BE INSTALLED in a path that make can find. To run the +services, start the portmap program as root and invoke the service +(you probably will want to put it in the background). rpcinfo can be +used to check that the service succeeded in getting registered with +portmap, and to ping the service (see rpcinfo's man page). You can +then use the corresponding client program to exercise the service. +To build these services on a Sun workstation, you must prevent the +Makefile from trying to link the RPC library (as these routines are +already a part of Sun's libc). Use: "make LIB=". + +BUGFIX FOR 4.3BSD COMPILER + +The use of a 'void *' declaration for one of the arguments in +the reply_proc() procedure in etc/rpcinfo.c will trigger a bug +in the 4.3BSD compiler. The bug is fixed by the following change to +the compiler file mip/manifest.h: + +*** manifest.h.r1.1 Thu Apr 30 13:52:25 1987 +--- manifest.h.r1.2 Mon Nov 23 18:58:17 1987 +*************** +*** 21,27 **** + /* + * Bogus type values + */ +! #define TNULL PTR /* pointer to UNDEF */ + #define TVOID FTN /* function returning UNDEF (for void) */ + + /* +--- 21,27 ---- + /* + * Bogus type values + */ +! #define TNULL INCREF(MOETY) /* pointer to MOETY -- impossible type */ + #define TVOID FTN /* function returning UNDEF (for void) */ + + /* + +If you cannot fix your compiler, change the declaration in reply_proc() +from 'void *' to 'char *'. + +BUGFIX FOR 4.2BSD COMPILER + +Unpatched 4.2BSD compilers complain about valid C. You can make old +compilers happy by changing some voids to ints. However, the fix to +the 4.2 VAX compiler is as follows (to mip/trees.c): + +*** trees.c.r1.1 Mon May 11 13:47:58 1987 +--- trees.c.r1.2 Wed Jul 2 18:28:52 1986 +*************** +*** 1247,1253 **** + if(o==CAST && mt1==0)return(TYPL+TYMATCH); + if( mt12 & MDBI ) return( TYPL+LVAL+TYMATCH ); + else if( (mt1&MENU)||(mt2&MENU) ) return( LVAL+NCVT+TYPL+PTMATCH+PUN ); +! else if( mt12 == 0 ) break; + else if( mt1 & MPTR ) return( LVAL+PTMATCH+PUN ); + else if( mt12 & MPTI ) return( TYPL+LVAL+TYMATCH+PUN ); + break; +--- 1261,1269 ---- + if(o==CAST && mt1==0)return(TYPL+TYMATCH); + if( mt12 & MDBI ) return( TYPL+LVAL+TYMATCH ); + else if( (mt1&MENU)||(mt2&MENU) ) return( LVAL+NCVT+TYPL+PTMATCH+PUN ); +! /* if right is TVOID and looks like a CALL, is not ok */ +! else if (mt2 == 0 && (p->in.right->in.op == CALL || p->in.right->in.op == UNARY CALL)) +! break; + else if( mt1 & MPTR ) return( LVAL+PTMATCH+PUN ); + else if( mt12 & MPTI ) return( TYPL+LVAL+TYMATCH+PUN ); + break; + +WHAT'S NEW IN THIS RELEASE: RPCSRC 4.0 + +The previous release was RPCSRC 3.9. As with all previous releases, +this release is based directly on files from Sun Microsystem's +implementation. + +Upgrade from RPCSRC 3.9 + +1) RPCSRC 4.0 upgrades RPCSRC 3.9. Improvements from SunOS 4.0 have + been integrated into this release. + +Secure RPC (in the secure_rpc/ directory) + +2) DES Authentication routines and programs are provided. +3) A new manual, "Secure NFS" is provided, which describes Secure RPC + and Secure NFS. +4) Skeleton routines and manual pages are provided which describe the + DES encryption procedures required by Secure RPC. HOWEVER, NO DES + ROUTINE IS PROVIDED. + +New Functionality + +5) rpcinfo can now be used to de-register services from the portmapper + which may have terminated abnormally. +6) A new client, rstat, is provided which queries the rstat_svc and + prints a status line similar to the one displayed by "uptime". diff --git a/lib/libc/rpc/auth_none.c b/lib/libc/rpc/auth_none.c new file mode 100644 index 0000000..9c5a664 --- /dev/null +++ b/lib/libc/rpc/auth_none.c @@ -0,0 +1,135 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)auth_none.c 1.19 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)auth_none.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: auth_none.c,v 1.1 1993/10/27 05:40:10 paul Exp $"; +#endif + +/* + * auth_none.c + * Creates a client authentication handle for passing "null" + * credentials and verifiers to remote systems. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <rpc/types.h> +#include <rpc/xdr.h> +#include <rpc/auth.h> +#define MAX_MARSHEL_SIZE 20 + +/* + * Authenticator operations routines + */ +static void authnone_verf(); +static void authnone_destroy(); +static bool_t authnone_marshal(); +static bool_t authnone_validate(); +static bool_t authnone_refresh(); + +static struct auth_ops ops = { + authnone_verf, + authnone_marshal, + authnone_validate, + authnone_refresh, + authnone_destroy +}; + +static struct authnone_private { + AUTH no_client; + char marshalled_client[MAX_MARSHEL_SIZE]; + u_int mcnt; +} *authnone_private; + +AUTH * +authnone_create() +{ + register struct authnone_private *ap = authnone_private; + XDR xdr_stream; + register XDR *xdrs; + + if (ap == 0) { + ap = (struct authnone_private *)calloc(1, sizeof (*ap)); + if (ap == 0) + return (0); + authnone_private = ap; + } + if (!ap->mcnt) { + ap->no_client.ah_cred = ap->no_client.ah_verf = _null_auth; + ap->no_client.ah_ops = &ops; + xdrs = &xdr_stream; + xdrmem_create(xdrs, ap->marshalled_client, (u_int)MAX_MARSHEL_SIZE, + XDR_ENCODE); + (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_cred); + (void)xdr_opaque_auth(xdrs, &ap->no_client.ah_verf); + ap->mcnt = XDR_GETPOS(xdrs); + XDR_DESTROY(xdrs); + } + return (&ap->no_client); +} + +/*ARGSUSED*/ +static bool_t +authnone_marshal(client, xdrs) + AUTH *client; + XDR *xdrs; +{ + register struct authnone_private *ap = authnone_private; + + if (ap == 0) + return (0); + return ((*xdrs->x_ops->x_putbytes)(xdrs, + ap->marshalled_client, ap->mcnt)); +} + +static void +authnone_verf() +{ +} + +static bool_t +authnone_validate() +{ + + return (TRUE); +} + +static bool_t +authnone_refresh() +{ + + return (FALSE); +} + +static void +authnone_destroy() +{ +} diff --git a/lib/libc/rpc/auth_unix.c b/lib/libc/rpc/auth_unix.c new file mode 100644 index 0000000..334dc56 --- /dev/null +++ b/lib/libc/rpc/auth_unix.c @@ -0,0 +1,322 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)auth_unix.c 1.19 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)auth_unix.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: auth_unix.c,v 1.1 1993/10/27 05:40:11 paul Exp $"; +#endif + +/* + * auth_unix.c, Implements UNIX style authentication parameters. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + * + * The system is very weak. The client uses no encryption for it's + * credentials and only sends null verifiers. The server sends backs + * null verifiers or optionally a verifier that suggests a new short hand + * for the credentials. + * + */ + +#include <stdio.h> +#include <stdlib.h> + +#include <rpc/types.h> +#include <rpc/xdr.h> +#include <rpc/auth.h> +#include <rpc/auth_unix.h> + +/* + * Unix authenticator operations vector + */ +static void authunix_nextverf(); +static bool_t authunix_marshal(); +static bool_t authunix_validate(); +static bool_t authunix_refresh(); +static void authunix_destroy(); + +static struct auth_ops auth_unix_ops = { + authunix_nextverf, + authunix_marshal, + authunix_validate, + authunix_refresh, + authunix_destroy +}; + +/* + * This struct is pointed to by the ah_private field of an auth_handle. + */ +struct audata { + struct opaque_auth au_origcred; /* original credentials */ + struct opaque_auth au_shcred; /* short hand cred */ + u_long au_shfaults; /* short hand cache faults */ + char au_marshed[MAX_AUTH_BYTES]; + u_int au_mpos; /* xdr pos at end of marshed */ +}; +#define AUTH_PRIVATE(auth) ((struct audata *)auth->ah_private) + +static bool_t marshal_new_auth(); + + +/* + * Create a unix style authenticator. + * Returns an auth handle with the given stuff in it. + */ +AUTH * +authunix_create(machname, uid, gid, len, aup_gids) + char *machname; + int uid; + int gid; + register int len; + int *aup_gids; +{ + struct authunix_parms aup; + char mymem[MAX_AUTH_BYTES]; + struct timeval now; + XDR xdrs; + register AUTH *auth; + register struct audata *au; + + /* + * Allocate and set up auth handle + */ + auth = (AUTH *)mem_alloc(sizeof(*auth)); +#ifndef KERNEL + if (auth == NULL) { + (void)fprintf(stderr, "authunix_create: out of memory\n"); + return (NULL); + } +#endif + au = (struct audata *)mem_alloc(sizeof(*au)); +#ifndef KERNEL + if (au == NULL) { + (void)fprintf(stderr, "authunix_create: out of memory\n"); + return (NULL); + } +#endif + auth->ah_ops = &auth_unix_ops; + auth->ah_private = (caddr_t)au; + auth->ah_verf = au->au_shcred = _null_auth; + au->au_shfaults = 0; + + /* + * fill in param struct from the given params + */ + (void)gettimeofday(&now, (struct timezone *)0); + aup.aup_time = now.tv_sec; + aup.aup_machname = machname; + aup.aup_uid = uid; + aup.aup_gid = gid; + aup.aup_len = (u_int)len; + aup.aup_gids = aup_gids; + + /* + * Serialize the parameters into origcred + */ + xdrmem_create(&xdrs, mymem, MAX_AUTH_BYTES, XDR_ENCODE); + if (! xdr_authunix_parms(&xdrs, &aup)) + abort(); + au->au_origcred.oa_length = len = XDR_GETPOS(&xdrs); + au->au_origcred.oa_flavor = AUTH_UNIX; +#ifdef KERNEL + au->au_origcred.oa_base = mem_alloc((u_int) len); +#else + if ((au->au_origcred.oa_base = mem_alloc((u_int) len)) == NULL) { + (void)fprintf(stderr, "authunix_create: out of memory\n"); + return (NULL); + } +#endif + bcopy(mymem, au->au_origcred.oa_base, (u_int)len); + + /* + * set auth handle to reflect new cred. + */ + auth->ah_cred = au->au_origcred; + marshal_new_auth(auth); + return (auth); +} + +/* + * Returns an auth handle with parameters determined by doing lots of + * syscalls. + */ +AUTH * +authunix_create_default() +{ + register int len; + char machname[MAX_MACHINE_NAME + 1]; + register int uid; + register int gid; + int gids[NGRPS]; + + if (gethostname(machname, MAX_MACHINE_NAME) == -1) + abort(); + machname[MAX_MACHINE_NAME] = 0; + uid = geteuid(); + gid = getegid(); + if ((len = getgroups(NGRPS, gids)) < 0) + abort(); + return (authunix_create(machname, uid, gid, len, gids)); +} + +/* + * authunix operations + */ + +static void +authunix_nextverf(auth) + AUTH *auth; +{ + /* no action necessary */ +} + +static bool_t +authunix_marshal(auth, xdrs) + AUTH *auth; + XDR *xdrs; +{ + register struct audata *au = AUTH_PRIVATE(auth); + + return (XDR_PUTBYTES(xdrs, au->au_marshed, au->au_mpos)); +} + +static bool_t +authunix_validate(auth, verf) + register AUTH *auth; + struct opaque_auth verf; +{ + register struct audata *au; + XDR xdrs; + + if (verf.oa_flavor == AUTH_SHORT) { + au = AUTH_PRIVATE(auth); + xdrmem_create(&xdrs, verf.oa_base, verf.oa_length, XDR_DECODE); + + if (au->au_shcred.oa_base != NULL) { + mem_free(au->au_shcred.oa_base, + au->au_shcred.oa_length); + au->au_shcred.oa_base = NULL; + } + if (xdr_opaque_auth(&xdrs, &au->au_shcred)) { + auth->ah_cred = au->au_shcred; + } else { + xdrs.x_op = XDR_FREE; + (void)xdr_opaque_auth(&xdrs, &au->au_shcred); + au->au_shcred.oa_base = NULL; + auth->ah_cred = au->au_origcred; + } + marshal_new_auth(auth); + } + return (TRUE); +} + +static bool_t +authunix_refresh(auth) + register AUTH *auth; +{ + register struct audata *au = AUTH_PRIVATE(auth); + struct authunix_parms aup; + struct timeval now; + XDR xdrs; + register int stat; + + if (auth->ah_cred.oa_base == au->au_origcred.oa_base) { + /* there is no hope. Punt */ + return (FALSE); + } + au->au_shfaults ++; + + /* first deserialize the creds back into a struct authunix_parms */ + aup.aup_machname = NULL; + aup.aup_gids = (int *)NULL; + xdrmem_create(&xdrs, au->au_origcred.oa_base, + au->au_origcred.oa_length, XDR_DECODE); + stat = xdr_authunix_parms(&xdrs, &aup); + if (! stat) + goto done; + + /* update the time and serialize in place */ + (void)gettimeofday(&now, (struct timezone *)0); + aup.aup_time = now.tv_sec; + xdrs.x_op = XDR_ENCODE; + XDR_SETPOS(&xdrs, 0); + stat = xdr_authunix_parms(&xdrs, &aup); + if (! stat) + goto done; + auth->ah_cred = au->au_origcred; + marshal_new_auth(auth); +done: + /* free the struct authunix_parms created by deserializing */ + xdrs.x_op = XDR_FREE; + (void)xdr_authunix_parms(&xdrs, &aup); + XDR_DESTROY(&xdrs); + return (stat); +} + +static void +authunix_destroy(auth) + register AUTH *auth; +{ + register struct audata *au = AUTH_PRIVATE(auth); + + mem_free(au->au_origcred.oa_base, au->au_origcred.oa_length); + + if (au->au_shcred.oa_base != NULL) + mem_free(au->au_shcred.oa_base, au->au_shcred.oa_length); + + mem_free(auth->ah_private, sizeof(struct audata)); + + if (auth->ah_verf.oa_base != NULL) + mem_free(auth->ah_verf.oa_base, auth->ah_verf.oa_length); + + mem_free((caddr_t)auth, sizeof(*auth)); +} + +/* + * Marshals (pre-serializes) an auth struct. + * sets private data, au_marshed and au_mpos + */ +static bool_t +marshal_new_auth(auth) + register AUTH *auth; +{ + XDR xdr_stream; + register XDR *xdrs = &xdr_stream; + register struct audata *au = AUTH_PRIVATE(auth); + + xdrmem_create(xdrs, au->au_marshed, MAX_AUTH_BYTES, XDR_ENCODE); + if ((! xdr_opaque_auth(xdrs, &(auth->ah_cred))) || + (! xdr_opaque_auth(xdrs, &(auth->ah_verf)))) { + perror("auth_none.c - Fatal marshalling problem"); + } else { + au->au_mpos = XDR_GETPOS(xdrs); + } + XDR_DESTROY(xdrs); +} diff --git a/lib/libc/rpc/authunix_prot.c b/lib/libc/rpc/authunix_prot.c new file mode 100644 index 0000000..15faf18 --- /dev/null +++ b/lib/libc/rpc/authunix_prot.c @@ -0,0 +1,68 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)authunix_prot.c 1.15 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)authunix_prot.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: authunix_prot.c,v 1.1 1993/10/27 05:40:15 paul Exp $"; +#endif + +/* + * authunix_prot.c + * XDR for UNIX style authentication parameters for RPC + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + + +#include <rpc/types.h> +#include <rpc/xdr.h> +#include <rpc/auth.h> +#include <rpc/auth_unix.h> + +/* + * XDR for unix authentication parameters. + */ +bool_t +xdr_authunix_parms(xdrs, p) + register XDR *xdrs; + register struct authunix_parms *p; +{ + + if (xdr_u_long(xdrs, &(p->aup_time)) + && xdr_string(xdrs, &(p->aup_machname), MAX_MACHINE_NAME) + && xdr_int(xdrs, &(p->aup_uid)) + && xdr_int(xdrs, &(p->aup_gid)) + && xdr_array(xdrs, (caddr_t *)&(p->aup_gids), + &(p->aup_len), NGRPS, sizeof(int), xdr_int) ) { + return (TRUE); + } + return (FALSE); +} + diff --git a/lib/libc/rpc/bindresvport.3 b/lib/libc/rpc/bindresvport.3 new file mode 100644 index 0000000..1fb1f9a --- /dev/null +++ b/lib/libc/rpc/bindresvport.3 @@ -0,0 +1,27 @@ +.\" @(#)bindresvport.3n 2.2 88/08/02 4.0 RPCSRC; from 1.7 88/03/14 SMI +.TH BINDRESVPORT 3N "22 november 1987" +.SH NAME +bindresvport \- bind a socket to a privileged IP port +.SH SYNOPSIS +.nf +.B #include <sys/types.h> +.B #include <netinet/in.h> +.LP +.B int bindresvport(sd, sin) +.B int sd; +.B struct sockaddr_in \(**sin; +.fi +.SH DESCRIPTION +.LP +.B bindresvport(\|) +is used to bind a socket descriptor to a privileged +.SM IP +port, that is, a +port number in the range 0-1023. +The routine returns 0 if it is successful, +otherwise \-1 is returned and +.B errno +set to reflect the cause of the error. +.LP +Only root can bind to a privileged port; this call will fail for any +other users. diff --git a/lib/libc/rpc/bindresvport.c b/lib/libc/rpc/bindresvport.c new file mode 100644 index 0000000..a085c91 --- /dev/null +++ b/lib/libc/rpc/bindresvport.c @@ -0,0 +1,84 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)bindresvport.c 1.8 88/02/08 SMI";*/ +/*static char *sccsid = "from: @(#)bindresvport.c 2.2 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: bindresvport.c,v 1.1 1993/10/27 05:40:17 paul Exp $"; +#endif + +/* + * Copyright (c) 1987 by Sun Microsystems, Inc. + */ + +#include <sys/types.h> +#include <sys/errno.h> +#include <sys/socket.h> +#include <netinet/in.h> + +/* + * Bind a socket to a privileged IP port + */ +bindresvport(sd, sin) + int sd; + struct sockaddr_in *sin; +{ + int res; + static short port; + struct sockaddr_in myaddr; + extern int errno; + int i; + +#define STARTPORT 600 +#define ENDPORT (IPPORT_RESERVED - 1) +#define NPORTS (ENDPORT - STARTPORT + 1) + + if (sin == (struct sockaddr_in *)0) { + sin = &myaddr; + bzero(sin, sizeof (*sin)); + sin->sin_family = AF_INET; + } else if (sin->sin_family != AF_INET) { + errno = EPFNOSUPPORT; + return (-1); + } + if (port == 0) { + port = (getpid() % NPORTS) + STARTPORT; + } + res = -1; + errno = EADDRINUSE; + for (i = 0; i < NPORTS && res < 0 && errno == EADDRINUSE; i++) { + sin->sin_port = htons(port++); + if (port > ENDPORT) { + port = STARTPORT; + } + res = bind(sd, + (struct sockaddr *)sin, sizeof(struct sockaddr_in)); + } + return (res); +} diff --git a/lib/libc/rpc/clnt_generic.c b/lib/libc/rpc/clnt_generic.c new file mode 100644 index 0000000..ad9c22b --- /dev/null +++ b/lib/libc/rpc/clnt_generic.c @@ -0,0 +1,113 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)clnt_generic.c 1.4 87/08/11 (C) 1987 SMI";*/ +/*static char *sccsid = "from: @(#)clnt_generic.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: clnt_generic.c,v 1.1 1993/10/27 05:40:19 paul Exp $"; +#endif + +/* + * Copyright (C) 1987, Sun Microsystems, Inc. + */ +#include <rpc/rpc.h> +#include <sys/socket.h> +#include <sys/errno.h> +#include <netdb.h> + +/* + * Generic client creation: takes (hostname, program-number, protocol) and + * returns client handle. Default options are set, which the user can + * change using the rpc equivalent of ioctl()'s. + */ +CLIENT * +clnt_create(hostname, prog, vers, proto) + char *hostname; + u_long prog; + u_long vers; + char *proto; +{ + struct hostent *h; + struct protoent *p; + struct sockaddr_in sin; + int sock; + struct timeval tv; + CLIENT *client; + + h = gethostbyname(hostname); + if (h == NULL) { + rpc_createerr.cf_stat = RPC_UNKNOWNHOST; + return (NULL); + } + if (h->h_addrtype != AF_INET) { + /* + * Only support INET for now + */ + rpc_createerr.cf_stat = RPC_SYSTEMERROR; + rpc_createerr.cf_error.re_errno = EAFNOSUPPORT; + return (NULL); + } + sin.sin_family = h->h_addrtype; + sin.sin_port = 0; + bzero(sin.sin_zero, sizeof(sin.sin_zero)); + bcopy(h->h_addr, (char*)&sin.sin_addr, h->h_length); + p = getprotobyname(proto); + if (p == NULL) { + rpc_createerr.cf_stat = RPC_UNKNOWNPROTO; + rpc_createerr.cf_error.re_errno = EPFNOSUPPORT; + return (NULL); + } + sock = RPC_ANYSOCK; + switch (p->p_proto) { + case IPPROTO_UDP: + tv.tv_sec = 5; + tv.tv_usec = 0; + client = clntudp_create(&sin, prog, vers, tv, &sock); + if (client == NULL) { + return (NULL); + } + tv.tv_sec = 25; + clnt_control(client, CLSET_TIMEOUT, &tv); + break; + case IPPROTO_TCP: + client = clnttcp_create(&sin, prog, vers, &sock, 0, 0); + if (client == NULL) { + return (NULL); + } + tv.tv_sec = 25; + tv.tv_usec = 0; + clnt_control(client, CLSET_TIMEOUT, &tv); + break; + default: + rpc_createerr.cf_stat = RPC_SYSTEMERROR; + rpc_createerr.cf_error.re_errno = EPFNOSUPPORT; + return (NULL); + } + return (client); +} diff --git a/lib/libc/rpc/clnt_perror.c b/lib/libc/rpc/clnt_perror.c new file mode 100644 index 0000000..9a7d76c --- /dev/null +++ b/lib/libc/rpc/clnt_perror.c @@ -0,0 +1,303 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)clnt_perror.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: clnt_perror.c,v 1.1 1993/10/27 05:40:20 paul Exp $"; +#endif + +/* + * clnt_perror.c + * + * Copyright (C) 1984, Sun Microsystems, Inc. + * + */ +#include <stdio.h> +#include <string.h> +#include <rpc/rpc.h> +#include <rpc/types.h> +#include <rpc/auth.h> +#include <rpc/clnt.h> + +static char *auth_errmsg(); + +static char *buf; + +static char * +_buf() +{ + + if (buf == 0) + buf = (char *)malloc(256); + return (buf); +} + +/* + * Print reply error info + */ +char * +clnt_sperror(rpch, s) + CLIENT *rpch; + char *s; +{ + struct rpc_err e; + void clnt_perrno(); + char *err; + char *str = _buf(); + char *strstart = str; + + if (str == 0) + return (0); + CLNT_GETERR(rpch, &e); + + (void) sprintf(str, "%s: ", s); + str += strlen(str); + + (void) strcpy(str, clnt_sperrno(e.re_status)); + str += strlen(str); + + switch (e.re_status) { + case RPC_SUCCESS: + case RPC_CANTENCODEARGS: + case RPC_CANTDECODERES: + case RPC_TIMEDOUT: + case RPC_PROGUNAVAIL: + case RPC_PROCUNAVAIL: + case RPC_CANTDECODEARGS: + case RPC_SYSTEMERROR: + case RPC_UNKNOWNHOST: + case RPC_UNKNOWNPROTO: + case RPC_PMAPFAILURE: + case RPC_PROGNOTREGISTERED: + case RPC_FAILED: + break; + + case RPC_CANTSEND: + case RPC_CANTRECV: + (void) sprintf(str, "; errno = %s", + strerror(e.re_errno)); + str += strlen(str); + break; + + case RPC_VERSMISMATCH: + (void) sprintf(str, + "; low version = %lu, high version = %lu", + e.re_vers.low, e.re_vers.high); + str += strlen(str); + break; + + case RPC_AUTHERROR: + err = auth_errmsg(e.re_why); + (void) sprintf(str,"; why = "); + str += strlen(str); + if (err != NULL) { + (void) sprintf(str, "%s",err); + } else { + (void) sprintf(str, + "(unknown authentication error - %d)", + (int) e.re_why); + } + str += strlen(str); + break; + + case RPC_PROGVERSMISMATCH: + (void) sprintf(str, + "; low version = %lu, high version = %lu", + e.re_vers.low, e.re_vers.high); + str += strlen(str); + break; + + default: /* unknown */ + (void) sprintf(str, + "; s1 = %lu, s2 = %lu", + e.re_lb.s1, e.re_lb.s2); + str += strlen(str); + break; + } + (void) sprintf(str, "\n"); + return(strstart) ; +} + +void +clnt_perror(rpch, s) + CLIENT *rpch; + char *s; +{ + (void) fprintf(stderr,"%s",clnt_sperror(rpch,s)); +} + + +struct rpc_errtab { + enum clnt_stat status; + char *message; +}; + +static struct rpc_errtab rpc_errlist[] = { + { RPC_SUCCESS, + "RPC: Success" }, + { RPC_CANTENCODEARGS, + "RPC: Can't encode arguments" }, + { RPC_CANTDECODERES, + "RPC: Can't decode result" }, + { RPC_CANTSEND, + "RPC: Unable to send" }, + { RPC_CANTRECV, + "RPC: Unable to receive" }, + { RPC_TIMEDOUT, + "RPC: Timed out" }, + { RPC_VERSMISMATCH, + "RPC: Incompatible versions of RPC" }, + { RPC_AUTHERROR, + "RPC: Authentication error" }, + { RPC_PROGUNAVAIL, + "RPC: Program unavailable" }, + { RPC_PROGVERSMISMATCH, + "RPC: Program/version mismatch" }, + { RPC_PROCUNAVAIL, + "RPC: Procedure unavailable" }, + { RPC_CANTDECODEARGS, + "RPC: Server can't decode arguments" }, + { RPC_SYSTEMERROR, + "RPC: Remote system error" }, + { RPC_UNKNOWNHOST, + "RPC: Unknown host" }, + { RPC_UNKNOWNPROTO, + "RPC: Unknown protocol" }, + { RPC_PMAPFAILURE, + "RPC: Port mapper failure" }, + { RPC_PROGNOTREGISTERED, + "RPC: Program not registered"}, + { RPC_FAILED, + "RPC: Failed (unspecified error)"} +}; + + +/* + * This interface for use by clntrpc + */ +char * +clnt_sperrno(stat) + enum clnt_stat stat; +{ + int i; + + for (i = 0; i < sizeof(rpc_errlist)/sizeof(struct rpc_errtab); i++) { + if (rpc_errlist[i].status == stat) { + return (rpc_errlist[i].message); + } + } + return ("RPC: (unknown error code)"); +} + +void +clnt_perrno(num) + enum clnt_stat num; +{ + (void) fprintf(stderr,"%s",clnt_sperrno(num)); +} + + +char * +clnt_spcreateerror(s) + char *s; +{ + extern int sys_nerr; + char *str = _buf(); + + if (str == 0) + return(0); + (void) sprintf(str, "%s: ", s); + (void) strcat(str, clnt_sperrno(rpc_createerr.cf_stat)); + switch (rpc_createerr.cf_stat) { + case RPC_PMAPFAILURE: + (void) strcat(str, " - "); + (void) strcat(str, + clnt_sperrno(rpc_createerr.cf_error.re_status)); + break; + + case RPC_SYSTEMERROR: + (void) strcat(str, " - "); + if (rpc_createerr.cf_error.re_errno > 0 + && rpc_createerr.cf_error.re_errno < sys_nerr) + (void) strcat(str, + strerror(rpc_createerr.cf_error.re_errno)); + else + (void) sprintf(&str[strlen(str)], "Error %d", + rpc_createerr.cf_error.re_errno); + break; + } + (void) strcat(str, "\n"); + return (str); +} + +void +clnt_pcreateerror(s) + char *s; +{ + (void) fprintf(stderr,"%s",clnt_spcreateerror(s)); +} + +struct auth_errtab { + enum auth_stat status; + char *message; +}; + +static struct auth_errtab auth_errlist[] = { + { AUTH_OK, + "Authentication OK" }, + { AUTH_BADCRED, + "Invalid client credential" }, + { AUTH_REJECTEDCRED, + "Server rejected credential" }, + { AUTH_BADVERF, + "Invalid client verifier" }, + { AUTH_REJECTEDVERF, + "Server rejected verifier" }, + { AUTH_TOOWEAK, + "Client credential too weak" }, + { AUTH_INVALIDRESP, + "Invalid server verifier" }, + { AUTH_FAILED, + "Failed (unspecified error)" }, +}; + +static char * +auth_errmsg(stat) + enum auth_stat stat; +{ + int i; + + for (i = 0; i < sizeof(auth_errlist)/sizeof(struct auth_errtab); i++) { + if (auth_errlist[i].status == stat) { + return(auth_errlist[i].message); + } + } + return(NULL); +} diff --git a/lib/libc/rpc/clnt_raw.c b/lib/libc/rpc/clnt_raw.c new file mode 100644 index 0000000..9ee87b2 --- /dev/null +++ b/lib/libc/rpc/clnt_raw.c @@ -0,0 +1,240 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)clnt_raw.c 1.22 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)clnt_raw.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: clnt_raw.c,v 1.1 1993/10/27 05:40:22 paul Exp $"; +#endif + +/* + * clnt_raw.c + * + * Copyright (C) 1984, Sun Microsystems, Inc. + * + * Memory based rpc for simple testing and timing. + * Interface to create an rpc client and server in the same process. + * This lets us similate rpc and get round trip overhead, without + * any interference from the kernal. + */ + +#include <rpc/rpc.h> + +#define MCALL_MSG_SIZE 24 + +/* + * This is the "network" we will be moving stuff over. + */ +static struct clntraw_private { + CLIENT client_object; + XDR xdr_stream; + char _raw_buf[UDPMSGSIZE]; + char mashl_callmsg[MCALL_MSG_SIZE]; + u_int mcnt; +} *clntraw_private; + +static enum clnt_stat clntraw_call(); +static void clntraw_abort(); +static void clntraw_geterr(); +static bool_t clntraw_freeres(); +static bool_t clntraw_control(); +static void clntraw_destroy(); + +static struct clnt_ops client_ops = { + clntraw_call, + clntraw_abort, + clntraw_geterr, + clntraw_freeres, + clntraw_destroy, + clntraw_control +}; + +void svc_getreq(); + +/* + * Create a client handle for memory based rpc. + */ +CLIENT * +clntraw_create(prog, vers) + u_long prog; + u_long vers; +{ + register struct clntraw_private *clp = clntraw_private; + struct rpc_msg call_msg; + XDR *xdrs = &clp->xdr_stream; + CLIENT *client = &clp->client_object; + + if (clp == 0) { + clp = (struct clntraw_private *)calloc(1, sizeof (*clp)); + if (clp == 0) + return (0); + clntraw_private = clp; + } + /* + * pre-serialize the staic part of the call msg and stash it away + */ + call_msg.rm_direction = CALL; + call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; + call_msg.rm_call.cb_prog = prog; + call_msg.rm_call.cb_vers = vers; + xdrmem_create(xdrs, clp->mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE); + if (! xdr_callhdr(xdrs, &call_msg)) { + perror("clnt_raw.c - Fatal header serialization error."); + } + clp->mcnt = XDR_GETPOS(xdrs); + XDR_DESTROY(xdrs); + + /* + * Set xdrmem for client/server shared buffer + */ + xdrmem_create(xdrs, clp->_raw_buf, UDPMSGSIZE, XDR_FREE); + + /* + * create client handle + */ + client->cl_ops = &client_ops; + client->cl_auth = authnone_create(); + return (client); +} + +static enum clnt_stat +clntraw_call(h, proc, xargs, argsp, xresults, resultsp, timeout) + CLIENT *h; + u_long proc; + xdrproc_t xargs; + caddr_t argsp; + xdrproc_t xresults; + caddr_t resultsp; + struct timeval timeout; +{ + register struct clntraw_private *clp = clntraw_private; + register XDR *xdrs = &clp->xdr_stream; + struct rpc_msg msg; + enum clnt_stat status; + struct rpc_err error; + + if (clp == 0) + return (RPC_FAILED); +call_again: + /* + * send request + */ + xdrs->x_op = XDR_ENCODE; + XDR_SETPOS(xdrs, 0); + ((struct rpc_msg *)clp->mashl_callmsg)->rm_xid ++ ; + if ((! XDR_PUTBYTES(xdrs, clp->mashl_callmsg, clp->mcnt)) || + (! XDR_PUTLONG(xdrs, (long *)&proc)) || + (! AUTH_MARSHALL(h->cl_auth, xdrs)) || + (! (*xargs)(xdrs, argsp))) { + return (RPC_CANTENCODEARGS); + } + (void)XDR_GETPOS(xdrs); /* called just to cause overhead */ + + /* + * We have to call server input routine here because this is + * all going on in one process. Yuk. + */ + svc_getreq(1); + + /* + * get results + */ + xdrs->x_op = XDR_DECODE; + XDR_SETPOS(xdrs, 0); + msg.acpted_rply.ar_verf = _null_auth; + msg.acpted_rply.ar_results.where = resultsp; + msg.acpted_rply.ar_results.proc = xresults; + if (! xdr_replymsg(xdrs, &msg)) + return (RPC_CANTDECODERES); + _seterr_reply(&msg, &error); + status = error.re_status; + + if (status == RPC_SUCCESS) { + if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) { + status = RPC_AUTHERROR; + } + } /* end successful completion */ + else { + if (AUTH_REFRESH(h->cl_auth)) + goto call_again; + } /* end of unsuccessful completion */ + + if (status == RPC_SUCCESS) { + if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) { + status = RPC_AUTHERROR; + } + if (msg.acpted_rply.ar_verf.oa_base != NULL) { + xdrs->x_op = XDR_FREE; + (void)xdr_opaque_auth(xdrs, &(msg.acpted_rply.ar_verf)); + } + } + + return (status); +} + +static void +clntraw_geterr() +{ +} + + +static bool_t +clntraw_freeres(cl, xdr_res, res_ptr) + CLIENT *cl; + xdrproc_t xdr_res; + caddr_t res_ptr; +{ + register struct clntraw_private *clp = clntraw_private; + register XDR *xdrs = &clp->xdr_stream; + bool_t rval; + + if (clp == 0) + { + rval = (bool_t) RPC_FAILED; + return (rval); + } + xdrs->x_op = XDR_FREE; + return ((*xdr_res)(xdrs, res_ptr)); +} + +static void +clntraw_abort() +{ +} + +static bool_t +clntraw_control() +{ + return (FALSE); +} + +static void +clntraw_destroy() +{ +} diff --git a/lib/libc/rpc/clnt_simple.c b/lib/libc/rpc/clnt_simple.c new file mode 100644 index 0000000..671e2eb --- /dev/null +++ b/lib/libc/rpc/clnt_simple.c @@ -0,0 +1,115 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)clnt_simple.c 1.35 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)clnt_simple.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: clnt_simple.c,v 1.1 1993/10/27 05:40:23 paul Exp $"; +#endif + +/* + * clnt_simple.c + * Simplified front end to rpc. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <rpc/rpc.h> +#include <sys/socket.h> +#include <netdb.h> + +static struct callrpc_private { + CLIENT *client; + int socket; + int oldprognum, oldversnum, valid; + char *oldhost; +} *callrpc_private; + +callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out) + char *host; + xdrproc_t inproc, outproc; + char *in, *out; +{ + register struct callrpc_private *crp = callrpc_private; + struct sockaddr_in server_addr; + enum clnt_stat clnt_stat; + struct hostent *hp; + struct timeval timeout, tottimeout; + + if (crp == 0) { + crp = (struct callrpc_private *)calloc(1, sizeof (*crp)); + if (crp == 0) + return (0); + callrpc_private = crp; + } + if (crp->oldhost == NULL) { + crp->oldhost = malloc(256); + crp->oldhost[0] = 0; + crp->socket = RPC_ANYSOCK; + } + if (crp->valid && crp->oldprognum == prognum && crp->oldversnum == versnum + && strcmp(crp->oldhost, host) == 0) { + /* reuse old client */ + } else { + crp->valid = 0; + (void)close(crp->socket); + crp->socket = RPC_ANYSOCK; + if (crp->client) { + clnt_destroy(crp->client); + crp->client = NULL; + } + if ((hp = gethostbyname(host)) == NULL) + return ((int) RPC_UNKNOWNHOST); + timeout.tv_usec = 0; + timeout.tv_sec = 5; + bcopy(hp->h_addr, (char *)&server_addr.sin_addr, hp->h_length); + server_addr.sin_family = AF_INET; + server_addr.sin_port = 0; + if ((crp->client = clntudp_create(&server_addr, (u_long)prognum, + (u_long)versnum, timeout, &crp->socket)) == NULL) + return ((int) rpc_createerr.cf_stat); + crp->valid = 1; + crp->oldprognum = prognum; + crp->oldversnum = versnum; + (void) strcpy(crp->oldhost, host); + } + tottimeout.tv_sec = 25; + tottimeout.tv_usec = 0; + clnt_stat = clnt_call(crp->client, procnum, inproc, in, + outproc, out, tottimeout); + /* + * if call failed, empty cache + */ + if (clnt_stat != RPC_SUCCESS) + crp->valid = 0; + return ((int) clnt_stat); +} diff --git a/lib/libc/rpc/clnt_tcp.c b/lib/libc/rpc/clnt_tcp.c new file mode 100644 index 0000000..efc041a --- /dev/null +++ b/lib/libc/rpc/clnt_tcp.c @@ -0,0 +1,468 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)clnt_tcp.c 1.37 87/10/05 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)clnt_tcp.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: clnt_tcp.c,v 1.1 1993/10/27 05:40:24 paul Exp $"; +#endif + +/* + * clnt_tcp.c, Implements a TCP/IP based, client side RPC. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + * + * TCP based RPC supports 'batched calls'. + * A sequence of calls may be batched-up in a send buffer. The rpc call + * return immediately to the client even though the call was not necessarily + * sent. The batching occurs if the results' xdr routine is NULL (0) AND + * the rpc timeout value is zero (see clnt.h, rpc). + * + * Clients should NOT casually batch calls that in fact return results; that is, + * the server side should be aware that a call is batched and not produce any + * return message. Batched calls that produce many result messages can + * deadlock (netlock) the client and the server.... + * + * Now go hang yourself. + */ + +#include <stdio.h> +#include <rpc/rpc.h> +#include <sys/socket.h> +#include <netdb.h> +#include <errno.h> +#include <rpc/pmap_clnt.h> + +#define MCALL_MSG_SIZE 24 + +extern int errno; + +static int readtcp(); +static int writetcp(); + +static enum clnt_stat clnttcp_call(); +static void clnttcp_abort(); +static void clnttcp_geterr(); +static bool_t clnttcp_freeres(); +static bool_t clnttcp_control(); +static void clnttcp_destroy(); + +static struct clnt_ops tcp_ops = { + clnttcp_call, + clnttcp_abort, + clnttcp_geterr, + clnttcp_freeres, + clnttcp_destroy, + clnttcp_control +}; + +struct ct_data { + int ct_sock; + bool_t ct_closeit; + struct timeval ct_wait; + bool_t ct_waitset; /* wait set by clnt_control? */ + struct sockaddr_in ct_addr; + struct rpc_err ct_error; + char ct_mcall[MCALL_MSG_SIZE]; /* marshalled callmsg */ + u_int ct_mpos; /* pos after marshal */ + XDR ct_xdrs; +}; + +/* + * Create a client handle for a tcp/ip connection. + * If *sockp<0, *sockp is set to a newly created TCP socket and it is + * connected to raddr. If *sockp non-negative then + * raddr is ignored. The rpc/tcp package does buffering + * similar to stdio, so the client must pick send and receive buffer sizes,]; + * 0 => use the default. + * If raddr->sin_port is 0, then a binder on the remote machine is + * consulted for the right port number. + * NB: *sockp is copied into a private area. + * NB: It is the clients responsibility to close *sockp. + * NB: The rpch->cl_auth is set null authentication. Caller may wish to set this + * something more useful. + */ +CLIENT * +clnttcp_create(raddr, prog, vers, sockp, sendsz, recvsz) + struct sockaddr_in *raddr; + u_long prog; + u_long vers; + register int *sockp; + u_int sendsz; + u_int recvsz; +{ + CLIENT *h; + register struct ct_data *ct; + struct timeval now; + struct rpc_msg call_msg; + + h = (CLIENT *)mem_alloc(sizeof(*h)); + if (h == NULL) { + (void)fprintf(stderr, "clnttcp_create: out of memory\n"); + rpc_createerr.cf_stat = RPC_SYSTEMERROR; + rpc_createerr.cf_error.re_errno = errno; + goto fooy; + } + ct = (struct ct_data *)mem_alloc(sizeof(*ct)); + if (ct == NULL) { + (void)fprintf(stderr, "clnttcp_create: out of memory\n"); + rpc_createerr.cf_stat = RPC_SYSTEMERROR; + rpc_createerr.cf_error.re_errno = errno; + goto fooy; + } + + /* + * If no port number given ask the pmap for one + */ + if (raddr->sin_port == 0) { + u_short port; + if ((port = pmap_getport(raddr, prog, vers, IPPROTO_TCP)) == 0) { + mem_free((caddr_t)ct, sizeof(struct ct_data)); + mem_free((caddr_t)h, sizeof(CLIENT)); + return ((CLIENT *)NULL); + } + raddr->sin_port = htons(port); + } + + /* + * If no socket given, open one + */ + if (*sockp < 0) { + *sockp = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + (void)bindresvport(*sockp, (struct sockaddr_in *)0); + if ((*sockp < 0) + || (connect(*sockp, (struct sockaddr *)raddr, + sizeof(*raddr)) < 0)) { + rpc_createerr.cf_stat = RPC_SYSTEMERROR; + rpc_createerr.cf_error.re_errno = errno; + (void)close(*sockp); + goto fooy; + } + ct->ct_closeit = TRUE; + } else { + ct->ct_closeit = FALSE; + } + + /* + * Set up private data struct + */ + ct->ct_sock = *sockp; + ct->ct_wait.tv_usec = 0; + ct->ct_waitset = FALSE; + ct->ct_addr = *raddr; + + /* + * Initialize call message + */ + (void)gettimeofday(&now, (struct timezone *)0); + call_msg.rm_xid = getpid() ^ now.tv_sec ^ now.tv_usec; + call_msg.rm_direction = CALL; + call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; + call_msg.rm_call.cb_prog = prog; + call_msg.rm_call.cb_vers = vers; + + /* + * pre-serialize the staic part of the call msg and stash it away + */ + xdrmem_create(&(ct->ct_xdrs), ct->ct_mcall, MCALL_MSG_SIZE, + XDR_ENCODE); + if (! xdr_callhdr(&(ct->ct_xdrs), &call_msg)) { + if (ct->ct_closeit) { + (void)close(*sockp); + } + goto fooy; + } + ct->ct_mpos = XDR_GETPOS(&(ct->ct_xdrs)); + XDR_DESTROY(&(ct->ct_xdrs)); + + /* + * Create a client handle which uses xdrrec for serialization + * and authnone for authentication. + */ + xdrrec_create(&(ct->ct_xdrs), sendsz, recvsz, + (caddr_t)ct, readtcp, writetcp); + h->cl_ops = &tcp_ops; + h->cl_private = (caddr_t) ct; + h->cl_auth = authnone_create(); + return (h); + +fooy: + /* + * Something goofed, free stuff and barf + */ + mem_free((caddr_t)ct, sizeof(struct ct_data)); + mem_free((caddr_t)h, sizeof(CLIENT)); + return ((CLIENT *)NULL); +} + +static enum clnt_stat +clnttcp_call(h, proc, xdr_args, args_ptr, xdr_results, results_ptr, timeout) + register CLIENT *h; + u_long proc; + xdrproc_t xdr_args; + caddr_t args_ptr; + xdrproc_t xdr_results; + caddr_t results_ptr; + struct timeval timeout; +{ + register struct ct_data *ct = (struct ct_data *) h->cl_private; + register XDR *xdrs = &(ct->ct_xdrs); + struct rpc_msg reply_msg; + u_long x_id; + u_long *msg_x_id = (u_long *)(ct->ct_mcall); /* yuk */ + register bool_t shipnow; + int refreshes = 2; + + if (!ct->ct_waitset) { + ct->ct_wait = timeout; + } + + shipnow = + (xdr_results == (xdrproc_t)0 && timeout.tv_sec == 0 + && timeout.tv_usec == 0) ? FALSE : TRUE; + +call_again: + xdrs->x_op = XDR_ENCODE; + ct->ct_error.re_status = RPC_SUCCESS; + x_id = ntohl(--(*msg_x_id)); + if ((! XDR_PUTBYTES(xdrs, ct->ct_mcall, ct->ct_mpos)) || + (! XDR_PUTLONG(xdrs, (long *)&proc)) || + (! AUTH_MARSHALL(h->cl_auth, xdrs)) || + (! (*xdr_args)(xdrs, args_ptr))) { + if (ct->ct_error.re_status == RPC_SUCCESS) + ct->ct_error.re_status = RPC_CANTENCODEARGS; + (void)xdrrec_endofrecord(xdrs, TRUE); + return (ct->ct_error.re_status); + } + if (! xdrrec_endofrecord(xdrs, shipnow)) + return (ct->ct_error.re_status = RPC_CANTSEND); + if (! shipnow) + return (RPC_SUCCESS); + /* + * Hack to provide rpc-based message passing + */ + if (timeout.tv_sec == 0 && timeout.tv_usec == 0) { + return(ct->ct_error.re_status = RPC_TIMEDOUT); + } + + + /* + * Keep receiving until we get a valid transaction id + */ + xdrs->x_op = XDR_DECODE; + while (TRUE) { + reply_msg.acpted_rply.ar_verf = _null_auth; + reply_msg.acpted_rply.ar_results.where = NULL; + reply_msg.acpted_rply.ar_results.proc = xdr_void; + if (! xdrrec_skiprecord(xdrs)) + return (ct->ct_error.re_status); + /* now decode and validate the response header */ + if (! xdr_replymsg(xdrs, &reply_msg)) { + if (ct->ct_error.re_status == RPC_SUCCESS) + continue; + return (ct->ct_error.re_status); + } + if (reply_msg.rm_xid == x_id) + break; + } + + /* + * process header + */ + _seterr_reply(&reply_msg, &(ct->ct_error)); + if (ct->ct_error.re_status == RPC_SUCCESS) { + if (! AUTH_VALIDATE(h->cl_auth, &reply_msg.acpted_rply.ar_verf)) { + ct->ct_error.re_status = RPC_AUTHERROR; + ct->ct_error.re_why = AUTH_INVALIDRESP; + } else if (! (*xdr_results)(xdrs, results_ptr)) { + if (ct->ct_error.re_status == RPC_SUCCESS) + ct->ct_error.re_status = RPC_CANTDECODERES; + } + /* free verifier ... */ + if (reply_msg.acpted_rply.ar_verf.oa_base != NULL) { + xdrs->x_op = XDR_FREE; + (void)xdr_opaque_auth(xdrs, &(reply_msg.acpted_rply.ar_verf)); + } + } /* end successful completion */ + else { + /* maybe our credentials need to be refreshed ... */ + if (refreshes-- && AUTH_REFRESH(h->cl_auth)) + goto call_again; + } /* end of unsuccessful completion */ + return (ct->ct_error.re_status); +} + +static void +clnttcp_geterr(h, errp) + CLIENT *h; + struct rpc_err *errp; +{ + register struct ct_data *ct = + (struct ct_data *) h->cl_private; + + *errp = ct->ct_error; +} + +static bool_t +clnttcp_freeres(cl, xdr_res, res_ptr) + CLIENT *cl; + xdrproc_t xdr_res; + caddr_t res_ptr; +{ + register struct ct_data *ct = (struct ct_data *)cl->cl_private; + register XDR *xdrs = &(ct->ct_xdrs); + + xdrs->x_op = XDR_FREE; + return ((*xdr_res)(xdrs, res_ptr)); +} + +static void +clnttcp_abort() +{ +} + +static bool_t +clnttcp_control(cl, request, info) + CLIENT *cl; + int request; + char *info; +{ + register struct ct_data *ct = (struct ct_data *)cl->cl_private; + + switch (request) { + case CLSET_TIMEOUT: + ct->ct_wait = *(struct timeval *)info; + ct->ct_waitset = TRUE; + break; + case CLGET_TIMEOUT: + *(struct timeval *)info = ct->ct_wait; + break; + case CLGET_SERVER_ADDR: + *(struct sockaddr_in *)info = ct->ct_addr; + break; + default: + return (FALSE); + } + return (TRUE); +} + + +static void +clnttcp_destroy(h) + CLIENT *h; +{ + register struct ct_data *ct = + (struct ct_data *) h->cl_private; + + if (ct->ct_closeit) { + (void)close(ct->ct_sock); + } + XDR_DESTROY(&(ct->ct_xdrs)); + mem_free((caddr_t)ct, sizeof(struct ct_data)); + mem_free((caddr_t)h, sizeof(CLIENT)); +} + +/* + * Interface between xdr serializer and tcp connection. + * Behaves like the system calls, read & write, but keeps some error state + * around for the rpc level. + */ +static int +readtcp(ct, buf, len) + register struct ct_data *ct; + caddr_t buf; + register int len; +{ +#ifdef FD_SETSIZE + fd_set mask; + fd_set readfds; + + if (len == 0) + return (0); + FD_ZERO(&mask); + FD_SET(ct->ct_sock, &mask); +#else + register int mask = 1 << (ct->ct_sock); + int readfds; + + if (len == 0) + return (0); + +#endif /* def FD_SETSIZE */ + while (TRUE) { + readfds = mask; + switch (select(_rpc_dtablesize(), &readfds, (int*)NULL, (int*)NULL, + &(ct->ct_wait))) { + case 0: + ct->ct_error.re_status = RPC_TIMEDOUT; + return (-1); + + case -1: + if (errno == EINTR) + continue; + ct->ct_error.re_status = RPC_CANTRECV; + ct->ct_error.re_errno = errno; + return (-1); + } + break; + } + switch (len = read(ct->ct_sock, buf, len)) { + + case 0: + /* premature eof */ + ct->ct_error.re_errno = ECONNRESET; + ct->ct_error.re_status = RPC_CANTRECV; + len = -1; /* it's really an error */ + break; + + case -1: + ct->ct_error.re_errno = errno; + ct->ct_error.re_status = RPC_CANTRECV; + break; + } + return (len); +} + +static int +writetcp(ct, buf, len) + struct ct_data *ct; + caddr_t buf; + int len; +{ + register int i, cnt; + + for (cnt = len; cnt > 0; cnt -= i, buf += i) { + if ((i = write(ct->ct_sock, buf, cnt)) == -1) { + ct->ct_error.re_errno = errno; + ct->ct_error.re_status = RPC_CANTSEND; + return (-1); + } + } + return (len); +} diff --git a/lib/libc/rpc/clnt_udp.c b/lib/libc/rpc/clnt_udp.c new file mode 100644 index 0000000..4df4631 --- /dev/null +++ b/lib/libc/rpc/clnt_udp.c @@ -0,0 +1,444 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)clnt_udp.c 1.39 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)clnt_udp.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: clnt_udp.c,v 1.1 1993/10/27 05:40:25 paul Exp $"; +#endif + +/* + * clnt_udp.c, Implements a UDP/IP based, client side RPC. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <stdio.h> +#include <rpc/rpc.h> +#include <sys/socket.h> +#include <sys/ioctl.h> +#include <netdb.h> +#include <errno.h> +#include <rpc/pmap_clnt.h> + +extern int errno; + +/* + * UDP bases client side rpc operations + */ +static enum clnt_stat clntudp_call(); +static void clntudp_abort(); +static void clntudp_geterr(); +static bool_t clntudp_freeres(); +static bool_t clntudp_control(); +static void clntudp_destroy(); + +static struct clnt_ops udp_ops = { + clntudp_call, + clntudp_abort, + clntudp_geterr, + clntudp_freeres, + clntudp_destroy, + clntudp_control +}; + +/* + * Private data kept per client handle + */ +struct cu_data { + int cu_sock; + bool_t cu_closeit; + struct sockaddr_in cu_raddr; + int cu_rlen; + struct timeval cu_wait; + struct timeval cu_total; + struct rpc_err cu_error; + XDR cu_outxdrs; + u_int cu_xdrpos; + u_int cu_sendsz; + char *cu_outbuf; + u_int cu_recvsz; + char cu_inbuf[1]; +}; + +/* + * Create a UDP based client handle. + * If *sockp<0, *sockp is set to a newly created UPD socket. + * If raddr->sin_port is 0 a binder on the remote machine + * is consulted for the correct port number. + * NB: It is the clients responsibility to close *sockp. + * NB: The rpch->cl_auth is initialized to null authentication. + * Caller may wish to set this something more useful. + * + * wait is the amount of time used between retransmitting a call if + * no response has been heard; retransmition occurs until the actual + * rpc call times out. + * + * sendsz and recvsz are the maximum allowable packet sizes that can be + * sent and received. + */ +CLIENT * +clntudp_bufcreate(raddr, program, version, wait, sockp, sendsz, recvsz) + struct sockaddr_in *raddr; + u_long program; + u_long version; + struct timeval wait; + register int *sockp; + u_int sendsz; + u_int recvsz; +{ + CLIENT *cl; + register struct cu_data *cu; + struct timeval now; + struct rpc_msg call_msg; + + cl = (CLIENT *)mem_alloc(sizeof(CLIENT)); + if (cl == NULL) { + (void) fprintf(stderr, "clntudp_create: out of memory\n"); + rpc_createerr.cf_stat = RPC_SYSTEMERROR; + rpc_createerr.cf_error.re_errno = errno; + goto fooy; + } + sendsz = ((sendsz + 3) / 4) * 4; + recvsz = ((recvsz + 3) / 4) * 4; + cu = (struct cu_data *)mem_alloc(sizeof(*cu) + sendsz + recvsz); + if (cu == NULL) { + (void) fprintf(stderr, "clntudp_create: out of memory\n"); + rpc_createerr.cf_stat = RPC_SYSTEMERROR; + rpc_createerr.cf_error.re_errno = errno; + goto fooy; + } + cu->cu_outbuf = &cu->cu_inbuf[recvsz]; + + (void)gettimeofday(&now, (struct timezone *)0); + if (raddr->sin_port == 0) { + u_short port; + if ((port = + pmap_getport(raddr, program, version, IPPROTO_UDP)) == 0) { + goto fooy; + } + raddr->sin_port = htons(port); + } + cl->cl_ops = &udp_ops; + cl->cl_private = (caddr_t)cu; + cu->cu_raddr = *raddr; + cu->cu_rlen = sizeof (cu->cu_raddr); + cu->cu_wait = wait; + cu->cu_total.tv_sec = -1; + cu->cu_total.tv_usec = -1; + cu->cu_sendsz = sendsz; + cu->cu_recvsz = recvsz; + call_msg.rm_xid = getpid() ^ now.tv_sec ^ now.tv_usec; + call_msg.rm_direction = CALL; + call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; + call_msg.rm_call.cb_prog = program; + call_msg.rm_call.cb_vers = version; + xdrmem_create(&(cu->cu_outxdrs), cu->cu_outbuf, + sendsz, XDR_ENCODE); + if (! xdr_callhdr(&(cu->cu_outxdrs), &call_msg)) { + goto fooy; + } + cu->cu_xdrpos = XDR_GETPOS(&(cu->cu_outxdrs)); + if (*sockp < 0) { + int dontblock = 1; + + *sockp = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + if (*sockp < 0) { + rpc_createerr.cf_stat = RPC_SYSTEMERROR; + rpc_createerr.cf_error.re_errno = errno; + goto fooy; + } + /* attempt to bind to prov port */ + (void)bindresvport(*sockp, (struct sockaddr_in *)0); + /* the sockets rpc controls are non-blocking */ + (void)ioctl(*sockp, FIONBIO, (char *) &dontblock); + cu->cu_closeit = TRUE; + } else { + cu->cu_closeit = FALSE; + } + cu->cu_sock = *sockp; + cl->cl_auth = authnone_create(); + return (cl); +fooy: + if (cu) + mem_free((caddr_t)cu, sizeof(*cu) + sendsz + recvsz); + if (cl) + mem_free((caddr_t)cl, sizeof(CLIENT)); + return ((CLIENT *)NULL); +} + +CLIENT * +clntudp_create(raddr, program, version, wait, sockp) + struct sockaddr_in *raddr; + u_long program; + u_long version; + struct timeval wait; + register int *sockp; +{ + + return(clntudp_bufcreate(raddr, program, version, wait, sockp, + UDPMSGSIZE, UDPMSGSIZE)); +} + +static enum clnt_stat +clntudp_call(cl, proc, xargs, argsp, xresults, resultsp, utimeout) + register CLIENT *cl; /* client handle */ + u_long proc; /* procedure number */ + xdrproc_t xargs; /* xdr routine for args */ + caddr_t argsp; /* pointer to args */ + xdrproc_t xresults; /* xdr routine for results */ + caddr_t resultsp; /* pointer to results */ + struct timeval utimeout; /* seconds to wait before giving up */ +{ + register struct cu_data *cu = (struct cu_data *)cl->cl_private; + register XDR *xdrs; + register int outlen; + register int inlen; + int fromlen; +#ifdef FD_SETSIZE + fd_set readfds; + fd_set mask; +#else + int readfds; + register int mask; +#endif /* def FD_SETSIZE */ + struct sockaddr_in from; + struct rpc_msg reply_msg; + XDR reply_xdrs; + struct timeval time_waited; + bool_t ok; + int nrefreshes = 2; /* number of times to refresh cred */ + struct timeval timeout; + + if (cu->cu_total.tv_usec == -1) { + timeout = utimeout; /* use supplied timeout */ + } else { + timeout = cu->cu_total; /* use default timeout */ + } + + time_waited.tv_sec = 0; + time_waited.tv_usec = 0; +call_again: + xdrs = &(cu->cu_outxdrs); + xdrs->x_op = XDR_ENCODE; + XDR_SETPOS(xdrs, cu->cu_xdrpos); + /* + * the transaction is the first thing in the out buffer + */ + (*(u_short *)(cu->cu_outbuf))++; + if ((! XDR_PUTLONG(xdrs, (long *)&proc)) || + (! AUTH_MARSHALL(cl->cl_auth, xdrs)) || + (! (*xargs)(xdrs, argsp))) + return (cu->cu_error.re_status = RPC_CANTENCODEARGS); + outlen = (int)XDR_GETPOS(xdrs); + +send_again: + if (sendto(cu->cu_sock, cu->cu_outbuf, outlen, 0, + (struct sockaddr *)&(cu->cu_raddr), cu->cu_rlen) + != outlen) { + cu->cu_error.re_errno = errno; + return (cu->cu_error.re_status = RPC_CANTSEND); + } + + /* + * Hack to provide rpc-based message passing + */ + if (timeout.tv_sec == 0 && timeout.tv_usec == 0) { + return (cu->cu_error.re_status = RPC_TIMEDOUT); + } + /* + * sub-optimal code appears here because we have + * some clock time to spare while the packets are in flight. + * (We assume that this is actually only executed once.) + */ + reply_msg.acpted_rply.ar_verf = _null_auth; + reply_msg.acpted_rply.ar_results.where = resultsp; + reply_msg.acpted_rply.ar_results.proc = xresults; +#ifdef FD_SETSIZE + FD_ZERO(&mask); + FD_SET(cu->cu_sock, &mask); +#else + mask = 1 << cu->cu_sock; +#endif /* def FD_SETSIZE */ + for (;;) { + readfds = mask; + switch (select(_rpc_dtablesize(), &readfds, (int *)NULL, + (int *)NULL, &(cu->cu_wait))) { + + case 0: + time_waited.tv_sec += cu->cu_wait.tv_sec; + time_waited.tv_usec += cu->cu_wait.tv_usec; + while (time_waited.tv_usec >= 1000000) { + time_waited.tv_sec++; + time_waited.tv_usec -= 1000000; + } + if ((time_waited.tv_sec < timeout.tv_sec) || + ((time_waited.tv_sec == timeout.tv_sec) && + (time_waited.tv_usec < timeout.tv_usec))) + goto send_again; + return (cu->cu_error.re_status = RPC_TIMEDOUT); + + /* + * buggy in other cases because time_waited is not being + * updated. + */ + case -1: + if (errno == EINTR) + continue; + cu->cu_error.re_errno = errno; + return (cu->cu_error.re_status = RPC_CANTRECV); + } + do { + fromlen = sizeof(struct sockaddr); + inlen = recvfrom(cu->cu_sock, cu->cu_inbuf, + (int) cu->cu_recvsz, 0, + (struct sockaddr *)&from, &fromlen); + } while (inlen < 0 && errno == EINTR); + if (inlen < 0) { + if (errno == EWOULDBLOCK) + continue; + cu->cu_error.re_errno = errno; + return (cu->cu_error.re_status = RPC_CANTRECV); + } + if (inlen < sizeof(u_long)) + continue; + /* see if reply transaction id matches sent id */ + if (*((u_long *)(cu->cu_inbuf)) != *((u_long *)(cu->cu_outbuf))) + continue; + /* we now assume we have the proper reply */ + break; + } + + /* + * now decode and validate the response + */ + xdrmem_create(&reply_xdrs, cu->cu_inbuf, (u_int)inlen, XDR_DECODE); + ok = xdr_replymsg(&reply_xdrs, &reply_msg); + /* XDR_DESTROY(&reply_xdrs); save a few cycles on noop destroy */ + if (ok) { + _seterr_reply(&reply_msg, &(cu->cu_error)); + if (cu->cu_error.re_status == RPC_SUCCESS) { + if (! AUTH_VALIDATE(cl->cl_auth, + &reply_msg.acpted_rply.ar_verf)) { + cu->cu_error.re_status = RPC_AUTHERROR; + cu->cu_error.re_why = AUTH_INVALIDRESP; + } + if (reply_msg.acpted_rply.ar_verf.oa_base != NULL) { + xdrs->x_op = XDR_FREE; + (void)xdr_opaque_auth(xdrs, + &(reply_msg.acpted_rply.ar_verf)); + } + } /* end successful completion */ + else { + /* maybe our credentials need to be refreshed ... */ + if (nrefreshes > 0 && AUTH_REFRESH(cl->cl_auth)) { + nrefreshes--; + goto call_again; + } + } /* end of unsuccessful completion */ + } /* end of valid reply message */ + else { + cu->cu_error.re_status = RPC_CANTDECODERES; + } + return (cu->cu_error.re_status); +} + +static void +clntudp_geterr(cl, errp) + CLIENT *cl; + struct rpc_err *errp; +{ + register struct cu_data *cu = (struct cu_data *)cl->cl_private; + + *errp = cu->cu_error; +} + + +static bool_t +clntudp_freeres(cl, xdr_res, res_ptr) + CLIENT *cl; + xdrproc_t xdr_res; + caddr_t res_ptr; +{ + register struct cu_data *cu = (struct cu_data *)cl->cl_private; + register XDR *xdrs = &(cu->cu_outxdrs); + + xdrs->x_op = XDR_FREE; + return ((*xdr_res)(xdrs, res_ptr)); +} + +static void +clntudp_abort(/*h*/) + /*CLIENT *h;*/ +{ +} + +static bool_t +clntudp_control(cl, request, info) + CLIENT *cl; + int request; + char *info; +{ + register struct cu_data *cu = (struct cu_data *)cl->cl_private; + + switch (request) { + case CLSET_TIMEOUT: + cu->cu_total = *(struct timeval *)info; + break; + case CLGET_TIMEOUT: + *(struct timeval *)info = cu->cu_total; + break; + case CLSET_RETRY_TIMEOUT: + cu->cu_wait = *(struct timeval *)info; + break; + case CLGET_RETRY_TIMEOUT: + *(struct timeval *)info = cu->cu_wait; + break; + case CLGET_SERVER_ADDR: + *(struct sockaddr_in *)info = cu->cu_raddr; + break; + default: + return (FALSE); + } + return (TRUE); +} + +static void +clntudp_destroy(cl) + CLIENT *cl; +{ + register struct cu_data *cu = (struct cu_data *)cl->cl_private; + + if (cu->cu_closeit) { + (void)close(cu->cu_sock); + } + XDR_DESTROY(&(cu->cu_outxdrs)); + mem_free((caddr_t)cu, (sizeof(*cu) + cu->cu_sendsz + cu->cu_recvsz)); + mem_free((caddr_t)cl, sizeof(CLIENT)); +} diff --git a/lib/libc/rpc/get_myaddress.c b/lib/libc/rpc/get_myaddress.c new file mode 100644 index 0000000..2b0b20d --- /dev/null +++ b/lib/libc/rpc/get_myaddress.c @@ -0,0 +1,99 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)get_myaddress.c 1.4 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)get_myaddress.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: get_myaddress.c,v 1.1 1993/10/27 05:40:27 paul Exp $"; +#endif + +/* + * get_myaddress.c + * + * Get client's IP address via ioctl. This avoids using the yellowpages. + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <rpc/types.h> +#include <rpc/xdr.h> +#include <rpc/pmap_prot.h> +#include <sys/socket.h> +#include <stdio.h> +#include <net/if.h> +#include <sys/ioctl.h> +#include <netinet/in.h> +#include <arpa/inet.h> + +/* + * don't use gethostbyname, which would invoke yellow pages + */ +get_myaddress(addr) + struct sockaddr_in *addr; +{ + int s; + char buf[BUFSIZ]; + struct ifconf ifc; + struct ifreq ifreq, *ifr; + int len, slop; + + if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { + perror("get_myaddress: socket"); + exit(1); + } + ifc.ifc_len = sizeof (buf); + ifc.ifc_buf = buf; + if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) { + perror("get_myaddress: ioctl (get interface configuration)"); + exit(1); + } + ifr = ifc.ifc_req; + for (len = ifc.ifc_len; len; len -= sizeof ifreq) { + ifreq = *ifr; + if (ioctl(s, SIOCGIFFLAGS, (char *)&ifreq) < 0) { + perror("get_myaddress: ioctl"); + exit(1); + } + if ((ifreq.ifr_flags & IFF_UP) && + ifr->ifr_addr.sa_family == AF_INET) { + *addr = *((struct sockaddr_in *)&ifr->ifr_addr); + addr->sin_port = htons(PMAPPORT); + break; + } + /* + * Deal with variable length addresses + */ + slop = ifr->ifr_addr.sa_len - sizeof (struct sockaddr); + if (slop) { + ifr = (struct ifreq *) ((caddr_t)ifr + slop); + len -= slop; + } + ifr++; + } + (void) close(s); +} diff --git a/lib/libc/rpc/getrpcent.3 b/lib/libc/rpc/getrpcent.3 new file mode 100644 index 0000000..f500c01 --- /dev/null +++ b/lib/libc/rpc/getrpcent.3 @@ -0,0 +1,109 @@ +.\" @(#)getrpcent.3n 2.2 88/08/02 4.0 RPCSRC; from 1.11 88/03/14 SMI +.TH GETRPCENT 3N "14 December 1987" +.SH NAME +getrpcent, getrpcbyname, getrpcbynumber \- get RPC entry +.SH SYNOPSIS +.nf +.ft B +#include <netdb.h> +.LP +.ft B +struct rpcent *getrpcent(\|) +.LP +.ft B +struct rpcent *getrpcbyname(name) +char *name; +.LP +.ft B +struct rpcent *getrpcbynumber(number) +int number; +.LP +.ft B +setrpcent (stayopen) +int stayopen +.LP +.ft B +endrpcent (\|) +.fi +.SH DESCRIPTION +.LP +.BR getrpcent(\|) , +.BR getrpcbyname(\|) , +and +.B getrpcbynumber(\|) +each return a pointer to an object with the +following structure +containing the broken-out +fields of a line in the rpc program number data base, +.BR /etc/rpc . +.RS +.LP +.nf +.ft B +struct rpcent { + char *r_name; /* name of server for this rpc program */ + char **r_aliases; /* alias list */ + long r_number; /* rpc program number */ +}; +.ft R +.fi +.RE +.LP +The members of this structure are: +.RS +.PD 0 +.TP 20 +.B r_name +The name of the server for this rpc program. +.TP 20 +.B r_aliases +A zero terminated list of alternate names for the rpc program. +.TP 20 +.B r_number +The rpc program number for this service. +.PD +.RE +.LP +.B getrpcent(\|) +reads the next line of the file, opening the file if necessary. +.LP +.B getrpcent(\|) +opens and rewinds the file. If the +.I stayopen +flag is non-zero, +the net data base will not be closed after each call to +.B getrpcent(\|) +(either directly, or indirectly through one of +the other \*(lqgetrpc\*(rq calls). +.LP +.B endrpcent +closes the file. +.LP +.B getrpcbyname(\|) +and +.B getrpcbynumber(\|) +sequentially search from the beginning +of the file until a matching rpc program name or +program number is found, or until end-of-file is encountered. +.SH FILES +.PD 0 +.TP 20 +.B /etc/rpc +.PD +.SH "SEE ALSO" +.BR rpc (5), +.BR rpcinfo (8C), +.BR ypserv (8) +.SH DIAGNOSTICS +.LP +A +.SM NULL +pointer is returned on +.SM EOF +or error. +.SH BUGS +.LP +All information +is contained in a static area +so it must be copied if it is +to be saved. diff --git a/lib/libc/rpc/getrpcent.c b/lib/libc/rpc/getrpcent.c new file mode 100644 index 0000000..a495278 --- /dev/null +++ b/lib/libc/rpc/getrpcent.c @@ -0,0 +1,298 @@ +/* + * 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 or with the express written consent of + * Sun Microsystems, Inc. + * + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)getrpcent.c 1.14 91/03/11 Copyr 1984 Sun Micro";*/ +static char *rcsid = "$Id: getrpcent.c,v 1.1 1993/10/27 05:40:29 paul Exp $"; +#endif + +/* + * Copyright (c) 1984 by Sun Microsystems, Inc. + */ + +#include <stdio.h> +#include <sys/types.h> +#include <string.h> +#include <rpc/rpc.h> +#ifdef YP +#include <rpcsvc/yp_prot.h> +#include <rpcsvc/ypclnt.h> +#endif + +/* + * Internet version. + */ +struct rpcdata { + FILE *rpcf; + int stayopen; +#define MAXALIASES 35 + char *rpc_aliases[MAXALIASES]; + struct rpcent rpc; + char line[BUFSIZ+1]; +#ifdef YP + char *domain; + char *current; + int currentlen; +#endif +} *rpcdata; + +#ifdef YP +static int __yp_nomap = 0; +#endif /* YP */ + +static struct rpcent *interpret(); +struct hostent *gethostent(); +char *inet_ntoa(); + +static char RPCDB[] = "/etc/rpc"; + +static struct rpcdata * +_rpcdata() +{ + register struct rpcdata *d = rpcdata; + + if (d == 0) { + d = (struct rpcdata *)calloc(1, sizeof (struct rpcdata)); + rpcdata = d; + } + return (d); +} + +struct rpcent * +getrpcbynumber(number) + register int number; +{ + register struct rpcdata *d = _rpcdata(); + register struct rpcent *p; +#ifdef YP + int reason; + char adrstr[16]; +#endif + + if (d == 0) + return (0); +#ifdef YP + if (!__yp_nomap && _yp_check(&d->domain)) { + sprintf(adrstr, "%d", number); + reason = yp_match(d->domain, "rpc.bynumber", adrstr, strlen(adrstr), + &d->current, &d->currentlen); + switch(reason) { + case 0: + break; + case YPERR_MAP: + __yp_nomap = 1; + goto no_yp; + break; + default: + return(0); + break; + } + d->current[d->currentlen] = '\0'; + p = interpret(d->current, d->currentlen); + (void) free(d->current); + return p; + } +no_yp: +#endif /* YP */ + setrpcent(0); + while (p = getrpcent()) { + if (p->r_number == number) + break; + } + endrpcent(); + return (p); +} + +struct rpcent * +getrpcbyname(name) + char *name; +{ + struct rpcent *rpc; + char **rp; + + setrpcent(0); + while (rpc = getrpcent()) { + if (strcmp(rpc->r_name, name) == 0) + return (rpc); + for (rp = rpc->r_aliases; *rp != NULL; rp++) { + if (strcmp(*rp, name) == 0) + return (rpc); + } + } + endrpcent(); + return (NULL); +} + +void +setrpcent(f) + int f; +{ + register struct rpcdata *d = _rpcdata(); + + if (d == 0) + return; +#ifdef YP + if (!__yp_nomap && _yp_check(NULL)) { + if (d->current) + free(d->current); + d->current = NULL; + d->currentlen = 0; + return; + } + __yp_nomap = 0; +#endif /* YP */ + if (d->rpcf == NULL) + d->rpcf = fopen(RPCDB, "r"); + else + rewind(d->rpcf); + d->stayopen |= f; +} + +void +endrpcent() +{ + register struct rpcdata *d = _rpcdata(); + + if (d == 0) + return; +#ifdef YP + if (!__yp_nomap && _yp_check(NULL)) { + if (d->current && !d->stayopen) + free(d->current); + d->current = NULL; + d->currentlen = 0; + return; + } + __yp_nomap = 0; +#endif /* YP */ + if (d->rpcf && !d->stayopen) { + fclose(d->rpcf); + d->rpcf = NULL; + } +} + +struct rpcent * +getrpcent() +{ + struct rpcent *hp; + int reason; + register struct rpcdata *d = _rpcdata(); +#ifdef YP + char *key = NULL, *val = NULL; + int keylen, vallen; +#endif + + if (d == 0) + return(NULL); +#ifdef YP + if (!__yp_nomap && _yp_check(&d->domain)) { + if (d->current == NULL && d->currentlen == 0) { + reason = yp_first(d->domain, "rpc.bynumber", + &d->current, &d->currentlen, + &val, &vallen); + } else { + reason = yp_next(d->domain, "rpc.bynumber", + d->current, d->currentlen, + &d->current, &d->currentlen, + &val, &vallen); + } + switch(reason) { + case 0: + break; + case YPERR_MAP: + __yp_nomap = 1; + goto no_yp; + break; + default: + return(0); + break; + } + val[vallen] = '\0'; + hp = interpret(val, vallen); + (void) free(val); + return hp; + } +no_yp: +#endif /* YP */ + if (d->rpcf == NULL && (d->rpcf = fopen(RPCDB, "r")) == NULL) + return (NULL); + if (fgets(d->line, BUFSIZ, d->rpcf) == NULL) + return (NULL); + return (interpret(d->line, strlen(d->line))); +} + +static struct rpcent * +interpret(val, len) + char *val; + int len; +{ + register struct rpcdata *d = _rpcdata(); + char *p; + register char *cp, **q; + + if (d == 0) + return (0); + (void) strncpy(d->line, val, len); + p = d->line; + d->line[len] = '\n'; + if (*p == '#') + return (getrpcent()); + cp = strpbrk(p, "#\n"); + if (cp == NULL) + return (getrpcent()); + *cp = '\0'; + cp = strpbrk(p, " \t"); + if (cp == NULL) + return (getrpcent()); + *cp++ = '\0'; + /* THIS STUFF IS INTERNET SPECIFIC */ + d->rpc.r_name = d->line; + while (*cp == ' ' || *cp == '\t') + cp++; + d->rpc.r_number = atoi(cp); + q = d->rpc.r_aliases = d->rpc_aliases; + cp = strpbrk(cp, " \t"); + if (cp != NULL) + *cp++ = '\0'; + while (cp && *cp) { + if (*cp == ' ' || *cp == '\t') { + cp++; + continue; + } + if (q < &(d->rpc_aliases[MAXALIASES - 1])) + *q++ = cp; + cp = strpbrk(cp, " \t"); + if (cp != NULL) + *cp++ = '\0'; + } + *q = NULL; + return (&d->rpc); +} + diff --git a/lib/libc/rpc/getrpcport.3 b/lib/libc/rpc/getrpcport.3 new file mode 100644 index 0000000..0323d34 --- /dev/null +++ b/lib/libc/rpc/getrpcport.3 @@ -0,0 +1,31 @@ +.\" @(#)getrpcport.3r 2.2 88/08/02 4.0 RPCSRC; from 1.12 88/02/26 SMI +.TH GETRPCPORT 3R "6 October 1987" +.SH NAME +getrpcport \- get RPC port number +.SH SYNOPSIS +.ft B +.nf +int getrpcport(host, prognum, versnum, proto) + char *host; + int prognum, versnum, proto; +.fi +.SH DESCRIPTION +.IX getrpcport "" "\fLgetrpcport\fR \(em get RPC port number" +.B getrpcport(\|) +returns the port number for version +.I versnum +of the RPC program +.I prognum +running on +.I host +and using protocol +.IR proto . +It returns 0 if it cannot contact the portmapper, or if +.I prognum +is not registered. If +.I prognum +is registered but not with version +.IR versnum , +it will still return a port number (for some version of the program) +indicating that the program is indeed registered. +The version mismatch will be detected upon the first call to the service. diff --git a/lib/libc/rpc/getrpcport.c b/lib/libc/rpc/getrpcport.c new file mode 100644 index 0000000..f1d58f9 --- /dev/null +++ b/lib/libc/rpc/getrpcport.c @@ -0,0 +1,57 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)getrpcport.c 1.3 87/08/11 SMI";*/ +/*static char *sccsid = "from: @(#)getrpcport.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: getrpcport.c,v 1.1 1993/10/27 05:40:31 paul Exp $"; +#endif + +/* + * Copyright (c) 1985 by Sun Microsystems, Inc. + */ + +#include <stdio.h> +#include <rpc/rpc.h> +#include <netdb.h> +#include <sys/socket.h> + +getrpcport(host, prognum, versnum, proto) + char *host; +{ + struct sockaddr_in addr; + struct hostent *hp; + + if ((hp = gethostbyname(host)) == NULL) + return (0); + bcopy(hp->h_addr, (char *) &addr.sin_addr, hp->h_length); + addr.sin_family = AF_INET; + addr.sin_port = 0; + return (pmap_getport(&addr, prognum, versnum, proto)); +} diff --git a/lib/libc/rpc/pmap_clnt.c b/lib/libc/rpc/pmap_clnt.c new file mode 100644 index 0000000..4ef44ec --- /dev/null +++ b/lib/libc/rpc/pmap_clnt.c @@ -0,0 +1,117 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)pmap_clnt.c 1.37 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)pmap_clnt.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: pmap_clnt.c,v 1.1 1993/10/27 05:40:32 paul Exp $"; +#endif + +/* + * pmap_clnt.c + * Client interface to pmap rpc service. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <rpc/rpc.h> +#include <rpc/pmap_prot.h> +#include <rpc/pmap_clnt.h> + +static struct timeval timeout = { 5, 0 }; +static struct timeval tottimeout = { 60, 0 }; + +void clnt_perror(); + + +/* + * Set a mapping between program,version and port. + * Calls the pmap service remotely to do the mapping. + */ +bool_t +pmap_set(program, version, protocol, port) + u_long program; + u_long version; + int protocol; + u_short port; +{ + struct sockaddr_in myaddress; + int socket = -1; + register CLIENT *client; + struct pmap parms; + bool_t rslt; + + get_myaddress(&myaddress); + client = clntudp_bufcreate(&myaddress, PMAPPROG, PMAPVERS, + timeout, &socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE); + if (client == (CLIENT *)NULL) + return (FALSE); + parms.pm_prog = program; + parms.pm_vers = version; + parms.pm_prot = protocol; + parms.pm_port = port; + if (CLNT_CALL(client, PMAPPROC_SET, xdr_pmap, &parms, xdr_bool, &rslt, + tottimeout) != RPC_SUCCESS) { + clnt_perror(client, "Cannot register service"); + return (FALSE); + } + CLNT_DESTROY(client); + (void)close(socket); + return (rslt); +} + +/* + * Remove the mapping between program,version and port. + * Calls the pmap service remotely to do the un-mapping. + */ +bool_t +pmap_unset(program, version) + u_long program; + u_long version; +{ + struct sockaddr_in myaddress; + int socket = -1; + register CLIENT *client; + struct pmap parms; + bool_t rslt; + + get_myaddress(&myaddress); + client = clntudp_bufcreate(&myaddress, PMAPPROG, PMAPVERS, + timeout, &socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE); + if (client == (CLIENT *)NULL) + return (FALSE); + parms.pm_prog = program; + parms.pm_vers = version; + parms.pm_port = parms.pm_prot = 0; + CLNT_CALL(client, PMAPPROC_UNSET, xdr_pmap, &parms, xdr_bool, &rslt, + tottimeout); + CLNT_DESTROY(client); + (void)close(socket); + return (rslt); +} diff --git a/lib/libc/rpc/pmap_getmaps.c b/lib/libc/rpc/pmap_getmaps.c new file mode 100644 index 0000000..5af5210 --- /dev/null +++ b/lib/libc/rpc/pmap_getmaps.c @@ -0,0 +1,86 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)pmap_getmaps.c 1.10 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)pmap_getmaps.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: pmap_getmaps.c,v 1.1 1993/10/27 05:40:35 paul Exp $"; +#endif + +/* + * pmap_getmap.c + * Client interface to pmap rpc service. + * contains pmap_getmaps, which is only tcp service involved + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <rpc/rpc.h> +#include <rpc/pmap_prot.h> +#include <rpc/pmap_clnt.h> +#include <sys/socket.h> +#include <netdb.h> +#include <stdio.h> +#include <errno.h> +#include <net/if.h> +#include <sys/ioctl.h> +#define NAMELEN 255 +#define MAX_BROADCAST_SIZE 1400 + +extern int errno; + +/* + * Get a copy of the current port maps. + * Calls the pmap service remotely to do get the maps. + */ +struct pmaplist * +pmap_getmaps(address) + struct sockaddr_in *address; +{ + struct pmaplist *head = (struct pmaplist *)NULL; + int socket = -1; + struct timeval minutetimeout; + register CLIENT *client; + + minutetimeout.tv_sec = 60; + minutetimeout.tv_usec = 0; + address->sin_port = htons(PMAPPORT); + client = clnttcp_create(address, PMAPPROG, + PMAPVERS, &socket, 50, 500); + if (client != (CLIENT *)NULL) { + if (CLNT_CALL(client, PMAPPROC_DUMP, xdr_void, NULL, xdr_pmaplist, + &head, minutetimeout) != RPC_SUCCESS) { + clnt_perror(client, "pmap_getmaps rpc problem"); + } + CLNT_DESTROY(client); + } + (void)close(socket); + address->sin_port = 0; + return (head); +} diff --git a/lib/libc/rpc/pmap_getport.c b/lib/libc/rpc/pmap_getport.c new file mode 100644 index 0000000..06ed4d4 --- /dev/null +++ b/lib/libc/rpc/pmap_getport.c @@ -0,0 +1,89 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)pmap_getport.c 1.9 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)pmap_getport.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: pmap_getport.c,v 1.1 1993/10/27 05:40:36 paul Exp $"; +#endif + +/* + * pmap_getport.c + * Client interface to pmap rpc service. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <rpc/rpc.h> +#include <rpc/pmap_prot.h> +#include <rpc/pmap_clnt.h> +#include <sys/socket.h> +#include <net/if.h> + +static struct timeval timeout = { 5, 0 }; +static struct timeval tottimeout = { 60, 0 }; + +/* + * Find the mapped port for program,version. + * Calls the pmap service remotely to do the lookup. + * Returns 0 if no map exists. + */ +u_short +pmap_getport(address, program, version, protocol) + struct sockaddr_in *address; + u_long program; + u_long version; + u_int protocol; +{ + u_short port = 0; + int socket = -1; + register CLIENT *client; + struct pmap parms; + + address->sin_port = htons(PMAPPORT); + client = clntudp_bufcreate(address, PMAPPROG, + PMAPVERS, timeout, &socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE); + if (client != (CLIENT *)NULL) { + parms.pm_prog = program; + parms.pm_vers = version; + parms.pm_prot = protocol; + parms.pm_port = 0; /* not needed or used */ + if (CLNT_CALL(client, PMAPPROC_GETPORT, xdr_pmap, &parms, + xdr_u_short, &port, tottimeout) != RPC_SUCCESS){ + rpc_createerr.cf_stat = RPC_PMAPFAILURE; + clnt_geterr(client, &rpc_createerr.cf_error); + } else if (port == 0) { + rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED; + } + CLNT_DESTROY(client); + } + (void)close(socket); + address->sin_port = 0; + return (port); +} diff --git a/lib/libc/rpc/pmap_prot.c b/lib/libc/rpc/pmap_prot.c new file mode 100644 index 0000000..ea0a20d --- /dev/null +++ b/lib/libc/rpc/pmap_prot.c @@ -0,0 +1,59 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)pmap_prot.c 1.17 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)pmap_prot.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: pmap_prot.c,v 1.1 1993/10/27 05:40:37 paul Exp $"; +#endif + +/* + * pmap_prot.c + * Protocol for the local binder service, or pmap. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <rpc/types.h> +#include <rpc/xdr.h> +#include <rpc/pmap_prot.h> + + +bool_t +xdr_pmap(xdrs, regs) + XDR *xdrs; + struct pmap *regs; +{ + + if (xdr_u_long(xdrs, ®s->pm_prog) && + xdr_u_long(xdrs, ®s->pm_vers) && + xdr_u_long(xdrs, ®s->pm_prot)) + return (xdr_u_long(xdrs, ®s->pm_port)); + return (FALSE); +} diff --git a/lib/libc/rpc/pmap_prot2.c b/lib/libc/rpc/pmap_prot2.c new file mode 100644 index 0000000..71ab21a --- /dev/null +++ b/lib/libc/rpc/pmap_prot2.c @@ -0,0 +1,118 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)pmap_prot2.c 1.3 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)pmap_prot2.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: pmap_prot2.c,v 1.1 1993/10/27 05:40:39 paul Exp $"; +#endif + +/* + * pmap_prot2.c + * Protocol for the local binder service, or pmap. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <rpc/types.h> +#include <rpc/xdr.h> +#include <rpc/pmap_prot.h> + + +/* + * What is going on with linked lists? (!) + * First recall the link list declaration from pmap_prot.h: + * + * struct pmaplist { + * struct pmap pml_map; + * struct pmaplist *pml_map; + * }; + * + * Compare that declaration with a corresponding xdr declaration that + * is (a) pointer-less, and (b) recursive: + * + * typedef union switch (bool_t) { + * + * case TRUE: struct { + * struct pmap; + * pmaplist_t foo; + * }; + * + * case FALSE: struct {}; + * } pmaplist_t; + * + * Notice that the xdr declaration has no nxt pointer while + * the C declaration has no bool_t variable. The bool_t can be + * interpreted as ``more data follows me''; if FALSE then nothing + * follows this bool_t; if TRUE then the bool_t is followed by + * an actual struct pmap, and then (recursively) by the + * xdr union, pamplist_t. + * + * This could be implemented via the xdr_union primitive, though this + * would cause a one recursive call per element in the list. Rather than do + * that we can ``unwind'' the recursion + * into a while loop and do the union arms in-place. + * + * The head of the list is what the C programmer wishes to past around + * the net, yet is the data that the pointer points to which is interesting; + * this sounds like a job for xdr_reference! + */ +bool_t +xdr_pmaplist(xdrs, rp) + register XDR *xdrs; + register struct pmaplist **rp; +{ + /* + * more_elements is pre-computed in case the direction is + * XDR_ENCODE or XDR_FREE. more_elements is overwritten by + * xdr_bool when the direction is XDR_DECODE. + */ + bool_t more_elements; + register int freeing = (xdrs->x_op == XDR_FREE); + register struct pmaplist **next; + + while (TRUE) { + more_elements = (bool_t)(*rp != NULL); + if (! xdr_bool(xdrs, &more_elements)) + return (FALSE); + if (! more_elements) + return (TRUE); /* we are done */ + /* + * the unfortunate side effect of non-recursion is that in + * the case of freeing we must remember the next object + * before we free the current object ... + */ + if (freeing) + next = &((*rp)->pml_next); + if (! xdr_reference(xdrs, (caddr_t *)rp, + (u_int)sizeof(struct pmaplist), xdr_pmap)) + return (FALSE); + rp = (freeing) ? next : &((*rp)->pml_next); + } +} diff --git a/lib/libc/rpc/pmap_rmt.c b/lib/libc/rpc/pmap_rmt.c new file mode 100644 index 0000000..339860c --- /dev/null +++ b/lib/libc/rpc/pmap_rmt.c @@ -0,0 +1,397 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)pmap_rmt.c 1.21 87/08/27 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)pmap_rmt.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: pmap_rmt.c,v 1.1 1993/10/27 05:40:40 paul Exp $"; +#endif + +/* + * pmap_rmt.c + * Client interface to pmap rpc service. + * remote call and broadcast service + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <rpc/rpc.h> +#include <rpc/pmap_prot.h> +#include <rpc/pmap_clnt.h> +#include <rpc/pmap_rmt.h> +#include <sys/socket.h> +#include <stdio.h> +#include <errno.h> +#include <net/if.h> +#include <sys/ioctl.h> +#include <arpa/inet.h> +#define MAX_BROADCAST_SIZE 1400 + +extern int errno; +static struct timeval timeout = { 3, 0 }; + + +/* + * pmapper remote-call-service interface. + * This routine is used to call the pmapper remote call service + * which will look up a service program in the port maps, and then + * remotely call that routine with the given parameters. This allows + * programs to do a lookup and call in one step. +*/ +enum clnt_stat +pmap_rmtcall(addr, prog, vers, proc, xdrargs, argsp, xdrres, resp, tout, port_ptr) + struct sockaddr_in *addr; + u_long prog, vers, proc; + xdrproc_t xdrargs, xdrres; + caddr_t argsp, resp; + struct timeval tout; + u_long *port_ptr; +{ + int socket = -1; + register CLIENT *client; + struct rmtcallargs a; + struct rmtcallres r; + enum clnt_stat stat; + + addr->sin_port = htons(PMAPPORT); + client = clntudp_create(addr, PMAPPROG, PMAPVERS, timeout, &socket); + if (client != (CLIENT *)NULL) { + a.prog = prog; + a.vers = vers; + a.proc = proc; + a.args_ptr = argsp; + a.xdr_args = xdrargs; + r.port_ptr = port_ptr; + r.results_ptr = resp; + r.xdr_results = xdrres; + stat = CLNT_CALL(client, PMAPPROC_CALLIT, xdr_rmtcall_args, &a, + xdr_rmtcallres, &r, tout); + CLNT_DESTROY(client); + } else { + stat = RPC_FAILED; + } + (void)close(socket); + addr->sin_port = 0; + return (stat); +} + + +/* + * XDR remote call arguments + * written for XDR_ENCODE direction only + */ +bool_t +xdr_rmtcall_args(xdrs, cap) + register XDR *xdrs; + register struct rmtcallargs *cap; +{ + u_int lenposition, argposition, position; + + if (xdr_u_long(xdrs, &(cap->prog)) && + xdr_u_long(xdrs, &(cap->vers)) && + xdr_u_long(xdrs, &(cap->proc))) { + lenposition = XDR_GETPOS(xdrs); + if (! xdr_u_long(xdrs, &(cap->arglen))) + return (FALSE); + argposition = XDR_GETPOS(xdrs); + if (! (*(cap->xdr_args))(xdrs, cap->args_ptr)) + return (FALSE); + position = XDR_GETPOS(xdrs); + cap->arglen = (u_long)position - (u_long)argposition; + XDR_SETPOS(xdrs, lenposition); + if (! xdr_u_long(xdrs, &(cap->arglen))) + return (FALSE); + XDR_SETPOS(xdrs, position); + return (TRUE); + } + return (FALSE); +} + +/* + * XDR remote call results + * written for XDR_DECODE direction only + */ +bool_t +xdr_rmtcallres(xdrs, crp) + register XDR *xdrs; + register struct rmtcallres *crp; +{ + caddr_t port_ptr; + + port_ptr = (caddr_t)crp->port_ptr; + if (xdr_reference(xdrs, &port_ptr, sizeof (u_long), + xdr_u_long) && xdr_u_long(xdrs, &crp->resultslen)) { + crp->port_ptr = (u_long *)port_ptr; + return ((*(crp->xdr_results))(xdrs, crp->results_ptr)); + } + return (FALSE); +} + + +/* + * The following is kludged-up support for simple rpc broadcasts. + * Someday a large, complicated system will replace these trivial + * routines which only support udp/ip . + */ + +static int +getbroadcastnets(addrs, sock, buf) + struct in_addr *addrs; + int sock; /* any valid socket will do */ + char *buf; /* why allocxate more when we can use existing... */ +{ + struct ifconf ifc; + struct ifreq ifreq, *ifr; + struct sockaddr_in *sin; + char *cp, *cplim; + int n, i = 0; + + ifc.ifc_len = UDPMSGSIZE; + ifc.ifc_buf = buf; + if (ioctl(sock, SIOCGIFCONF, (char *)&ifc) < 0) { + perror("broadcast: ioctl (get interface configuration)"); + return (0); + } +#define max(a, b) (a > b ? a : b) +#define size(p) max((p).sa_len, sizeof(p)) + cplim = buf + ifc.ifc_len; /*skip over if's with big ifr_addr's */ + for (cp = buf; cp < cplim; + cp += sizeof (ifr->ifr_name) + size(ifr->ifr_addr)) { + ifr = (struct ifreq *)cp; + if (ifr->ifr_addr.sa_family != AF_INET) + continue; + ifreq = *ifr; + if (ioctl(sock, SIOCGIFFLAGS, (char *)&ifreq) < 0) { + perror("broadcast: ioctl (get interface flags)"); + continue; + } + if ((ifreq.ifr_flags & IFF_BROADCAST) && + (ifreq.ifr_flags & IFF_UP)) { + sin = (struct sockaddr_in *)&ifr->ifr_addr; +#ifdef SIOCGIFBRDADDR /* 4.3BSD */ + if (ioctl(sock, SIOCGIFBRDADDR, (char *)&ifreq) < 0) { + addrs[i++] = + inet_makeaddr(inet_netof(sin->sin_addr), + INADDR_ANY); + } else { + addrs[i++] = ((struct sockaddr_in*) + &ifreq.ifr_addr)->sin_addr; + } +#else /* 4.2 BSD */ + addrs[i++] = inet_makeaddr(inet_netof(sin->sin_addr), + INADDR_ANY); +#endif + } + } + return (i); +} + +typedef bool_t (*resultproc_t)(); + +enum clnt_stat +clnt_broadcast(prog, vers, proc, xargs, argsp, xresults, resultsp, eachresult) + u_long prog; /* program number */ + u_long vers; /* version number */ + u_long proc; /* procedure number */ + xdrproc_t xargs; /* xdr routine for args */ + caddr_t argsp; /* pointer to args */ + xdrproc_t xresults; /* xdr routine for results */ + caddr_t resultsp; /* pointer to results */ + resultproc_t eachresult; /* call with each result obtained */ +{ + enum clnt_stat stat; + AUTH *unix_auth = authunix_create_default(); + XDR xdr_stream; + register XDR *xdrs = &xdr_stream; + int outlen, inlen, fromlen, nets; + register int sock; + int on = 1; +#ifdef FD_SETSIZE + fd_set mask; + fd_set readfds; +#else + int readfds; + register int mask; +#endif /* def FD_SETSIZE */ + register int i; + bool_t done = FALSE; + register u_long xid; + u_long port; + struct in_addr addrs[20]; + struct sockaddr_in baddr, raddr; /* broadcast and response addresses */ + struct rmtcallargs a; + struct rmtcallres r; + struct rpc_msg msg; + struct timeval t; + char outbuf[MAX_BROADCAST_SIZE], inbuf[UDPMSGSIZE]; + + /* + * initialization: create a socket, a broadcast address, and + * preserialize the arguments into a send buffer. + */ + if ((sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) { + perror("Cannot create socket for broadcast rpc"); + stat = RPC_CANTSEND; + goto done_broad; + } +#ifdef SO_BROADCAST + if (setsockopt(sock, SOL_SOCKET, SO_BROADCAST, &on, sizeof (on)) < 0) { + perror("Cannot set socket option SO_BROADCAST"); + stat = RPC_CANTSEND; + goto done_broad; + } +#endif /* def SO_BROADCAST */ +#ifdef FD_SETSIZE + FD_ZERO(&mask); + FD_SET(sock, &mask); +#else + mask = (1 << sock); +#endif /* def FD_SETSIZE */ + nets = getbroadcastnets(addrs, sock, inbuf); + bzero((char *)&baddr, sizeof (baddr)); + baddr.sin_family = AF_INET; + baddr.sin_port = htons(PMAPPORT); + baddr.sin_addr.s_addr = htonl(INADDR_ANY); +/* baddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY); */ + (void)gettimeofday(&t, (struct timezone *)0); + msg.rm_xid = xid = getpid() ^ t.tv_sec ^ t.tv_usec; + t.tv_usec = 0; + msg.rm_direction = CALL; + msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; + msg.rm_call.cb_prog = PMAPPROG; + msg.rm_call.cb_vers = PMAPVERS; + msg.rm_call.cb_proc = PMAPPROC_CALLIT; + msg.rm_call.cb_cred = unix_auth->ah_cred; + msg.rm_call.cb_verf = unix_auth->ah_verf; + a.prog = prog; + a.vers = vers; + a.proc = proc; + a.xdr_args = xargs; + a.args_ptr = argsp; + r.port_ptr = &port; + r.xdr_results = xresults; + r.results_ptr = resultsp; + xdrmem_create(xdrs, outbuf, MAX_BROADCAST_SIZE, XDR_ENCODE); + if ((! xdr_callmsg(xdrs, &msg)) || (! xdr_rmtcall_args(xdrs, &a))) { + stat = RPC_CANTENCODEARGS; + goto done_broad; + } + outlen = (int)xdr_getpos(xdrs); + xdr_destroy(xdrs); + /* + * Basic loop: broadcast a packet and wait a while for response(s). + * The response timeout grows larger per iteration. + */ + for (t.tv_sec = 4; t.tv_sec <= 14; t.tv_sec += 2) { + for (i = 0; i < nets; i++) { + baddr.sin_addr = addrs[i]; + if (sendto(sock, outbuf, outlen, 0, + (struct sockaddr *)&baddr, + sizeof (struct sockaddr)) != outlen) { + perror("Cannot send broadcast packet"); + stat = RPC_CANTSEND; + goto done_broad; + } + } + if (eachresult == NULL) { + stat = RPC_SUCCESS; + goto done_broad; + } + recv_again: + msg.acpted_rply.ar_verf = _null_auth; + msg.acpted_rply.ar_results.where = (caddr_t)&r; + msg.acpted_rply.ar_results.proc = xdr_rmtcallres; + readfds = mask; + switch (select(_rpc_dtablesize(), &readfds, (int *)NULL, + (int *)NULL, &t)) { + + case 0: /* timed out */ + stat = RPC_TIMEDOUT; + continue; + + case -1: /* some kind of error */ + if (errno == EINTR) + goto recv_again; + perror("Broadcast select problem"); + stat = RPC_CANTRECV; + goto done_broad; + + } /* end of select results switch */ + try_again: + fromlen = sizeof(struct sockaddr); + inlen = recvfrom(sock, inbuf, UDPMSGSIZE, 0, + (struct sockaddr *)&raddr, &fromlen); + if (inlen < 0) { + if (errno == EINTR) + goto try_again; + perror("Cannot receive reply to broadcast"); + stat = RPC_CANTRECV; + goto done_broad; + } + if (inlen < sizeof(u_long)) + goto recv_again; + /* + * see if reply transaction id matches sent id. + * If so, decode the results. + */ + xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE); + if (xdr_replymsg(xdrs, &msg)) { + if ((msg.rm_xid == xid) && + (msg.rm_reply.rp_stat == MSG_ACCEPTED) && + (msg.acpted_rply.ar_stat == SUCCESS)) { + raddr.sin_port = htons((u_short)port); + done = (*eachresult)(resultsp, &raddr); + } + /* otherwise, we just ignore the errors ... */ + } else { +#ifdef notdef + /* some kind of deserialization problem ... */ + if (msg.rm_xid == xid) + fprintf(stderr, "Broadcast deserialization problem"); + /* otherwise, just random garbage */ +#endif + } + xdrs->x_op = XDR_FREE; + msg.acpted_rply.ar_results.proc = xdr_void; + (void)xdr_replymsg(xdrs, &msg); + (void)(*xresults)(xdrs, resultsp); + xdr_destroy(xdrs); + if (done) { + stat = RPC_SUCCESS; + goto done_broad; + } else { + goto recv_again; + } + } +done_broad: + (void)close(sock); + AUTH_DESTROY(unix_auth); + return (stat); +} + diff --git a/lib/libc/rpc/rpc.3 b/lib/libc/rpc/rpc.3 new file mode 100644 index 0000000..b5a2b92 --- /dev/null +++ b/lib/libc/rpc/rpc.3 @@ -0,0 +1,1729 @@ +.\" @(#)rpc.3n 2.4 88/08/08 4.0 RPCSRC; from 1.19 88/06/24 SMI +.TH RPC 3N "16 February 1988" +.SH NAME +rpc \- library routines for remote procedure calls +.SH SYNOPSIS AND DESCRIPTION +These routines allow C programs to make procedure +calls on other machines across the network. +First, the client calls a procedure to send a +data packet to the server. +Upon receipt of the packet, the server calls a dispatch routine +to perform the requested service, and then sends back a +reply. +Finally, the procedure call returns to the client. +.LP +Routines that are used for Secure RPC (DES authentication) are described in +.BR rpc_secure (3N). +Secure RPC can be used only if DES encryption is available. +.LP +.ft B +.nf +.sp .5 +#include <rpc/rpc.h> +.fi +.ft R +.br +.if t .ne 8 +.LP +.ft B +.nf +.sp .5 +void +auth_destroy(auth) +\s-1AUTH\s0 *auth; +.fi +.ft R +.IP +A macro that destroys the authentication information associated with +.IR auth . +Destruction usually involves deallocation of private data +structures. The use of +.I auth +is undefined after calling +.BR auth_destroy(\|) . +.br +.if t .ne 6 +.LP +.ft B +.nf +.sp .5 +\s-1AUTH\s0 * +authnone_create(\|) +.fi +.ft R +.IP +Create and returns an +.SM RPC +authentication handle that passes nonusable authentication +information with each remote procedure call. This is the +default authentication used by +.SM RPC. +.if t .ne 10 +.LP +.ft B +.nf +.sp .5 +\s-1AUTH\s0 * +authunix_create(host, uid, gid, len, aup_gids) +char *host; +int uid, gid, len, *aup.gids; +.fi +.ft R +.IP +Create and return an +.SM RPC +authentication handle that contains +.UX +authentication information. +The parameter +.I host +is the name of the machine on which the information was +created; +.I uid +is the user's user +.SM ID ; +.I gid +is the user's current group +.SM ID ; +.I len +and +.I aup_gids +refer to a counted array of groups to which the user belongs. +It is easy to impersonate a user. +.br +.if t .ne 5 +.LP +.ft B +.nf +.sp .5 +\s-1AUTH\s0 * +authunix_create_default(\|) +.fi +.ft R +.IP +Calls +.B authunix_create(\|) +with the appropriate parameters. +.br +.if t .ne 13 +.LP +.ft B +.nf +.sp .5 +callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out) +char *host; +u_long prognum, versnum, procnum; +char *in, *out; +xdrproc_t inproc, outproc; +.fi +.ft R +.IP +Call the remote procedure associated with +.IR prognum , +.IR versnum , +and +.I procnum +on the machine, +.IR host . +The parameter +.I in +is the address of the procedure's argument(s), and +.I out +is the address of where to place the result(s); +.I inproc +is used to encode the procedure's parameters, and +.I outproc +is used to decode the procedure's results. +This routine returns zero if it succeeds, or the value of +.B "enum clnt_stat" +cast to an integer if it fails. +The routine +.B clnt_perrno(\|) +is handy for translating failure statuses into messages. +.IP +Warning: calling remote procedures with this routine +uses +.SM UDP/IP +as a transport; see +.B clntudp_create(\|) +for restrictions. +You do not have control of timeouts or authentication using +this routine. +.br +.if t .ne 16 +.LP +.ft B +.nf +.sp .5 +enum clnt_stat +clnt_broadcast(prognum, versnum, procnum, inproc, in, outproc, out, eachresult) +u_long prognum, versnum, procnum; +char *in, *out; +xdrproc_t inproc, outproc; +resultproc_t eachresult; +.fi +.ft R +.IP +Like +.BR callrpc(\|) , +except the call message is broadcast to all locally +connected broadcast nets. Each time it receives a +response, this routine calls +.BR eachresult(\|) , +whose form is: +.IP +.RS 1i +.ft B +.nf +eachresult(out, addr) +char *out; +struct sockaddr_in *addr; +.ft R +.fi +.RE +.IP +where +.I out +is the same as +.I out +passed to +.BR clnt_broadcast(\|) , +except that the remote procedure's output is decoded there; +.I addr +points to the address of the machine that sent the results. +If +.B eachresult(\|) +returns zero, +.B clnt_broadcast(\|) +waits for more replies; otherwise it returns with appropriate +status. +.IP +Warning: broadcast sockets are limited in size to the +maximum transfer unit of the data link. For ethernet, +this value is 1500 bytes. +.br +.if t .ne 13 +.LP +.ft B +.nf +.sp .5 +enum clnt_stat +clnt_call(clnt, procnum, inproc, in, outproc, out, tout) +\s-1CLIENT\s0 *clnt; +u_long +procnum; +xdrproc_t inproc, outproc; +char *in, *out; +struct timeval tout; +.fi +.ft R +.IP +A macro that calls the remote procedure +.I procnum +associated with the client handle, +.IR clnt , +which is obtained with an +.SM RPC +client creation routine such as +.BR clnt_create(\|) . +The parameter +.I in +is the address of the procedure's argument(s), and +.I out +is the address of where to place the result(s); +.I inproc +is used to encode the procedure's parameters, and +.I outproc +is used to decode the procedure's results; +.I tout +is the time allowed for results to come back. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +clnt_destroy(clnt) +\s-1CLIENT\s0 *clnt; +.fi +.ft R +.IP +A macro that destroys the client's +.SM RPC +handle. Destruction usually involves deallocation +of private data structures, including +.I clnt +itself. Use of +.I clnt +is undefined after calling +.BR clnt_destroy(\|) . +If the +.SM RPC +library opened the associated socket, it will close it also. +Otherwise, the socket remains open. +.br +.if t .ne 10 +.LP +.ft B +.nf +.sp .5 +\s-1CLIENT\s0 * +clnt_create(host, prog, vers, proto) +char *host; +u_long prog, vers; +char *proto; +.fi +.ft R +.IP +Generic client creation routine. +.I host +identifies the name of the remote host where the server +is located. +.I proto +indicates which kind of transport protocol to use. The +currently supported values for this field are \(lqudp\(rq +and \(lqtcp\(rq. +Default timeouts are set, but can be modified using +.BR clnt_control(\|) . +.IP +Warning: Using +.SM UDP +has its shortcomings. Since +.SM UDP\s0-based +.SM RPC +messages can only hold up to 8 Kbytes of encoded data, +this transport cannot be used for procedures that take +large arguments or return huge results. +.br +.if t .ne 10 +.LP +.ft B +.nf +.sp .5 +bool_t +clnt_control(cl, req, info) +\s-1CLIENT\s0 *cl; +char *info; +.fi +.ft R +.IP +A macro used to change or retrieve various information +about a client object. +.I req +indicates the type of operation, and +.I info +is a pointer to the information. For both +.SM UDP +and +.SM TCP\s0, +the supported values of +.I req +and their argument types and what they do are: +.IP +.nf +.ta +2.0i +2.0i +2.0i +.SM CLSET_TIMEOUT\s0 struct timeval set total timeout +.SM CLGET_TIMEOUT\s0 struct timeval get total timeout +.fi +.IP +Note: if you set the timeout using +.BR clnt_control(\|) , +the timeout parameter passed to +.B clnt_call(\|) +will be ignored in all future calls. +.IP +.nf +.SM CLGET_SERVER_ADDR\s0 struct sockaddr_in get server's address +.fi +.br +.IP +The following operations are valid for +.SM UDP +only: +.IP +.nf +.ta +2.0i ; +2.0i ; +2.0i +.SM CLSET_RETRY_TIMEOUT\s0 struct timeval set the retry timeout +.SM CLGET_RETRY_TIMEOUT\s0 struct timeval get the retry timeout +.fi +.br +.IP +The retry timeout is the time that +.SM "UDP RPC" +waits for the server to reply before +retransmitting the request. +.br +.if t .ne 10 +.LP +.ft B +.nf +.sp .5 +clnt_freeres(clnt, outproc, out) +\s-1CLIENT\s0 *clnt; +xdrproc_t outproc; +char *out; +.fi +.ft R +.IP +A macro that frees any data allocated by the +.SM RPC/XDR +system when it decoded the results of an +.SM RPC +call. The +parameter +.I out +is the address of the results, and +.I outproc +is the +.SM XDR +routine describing the results. +This routine returns one if the results were successfully +freed, +and zero otherwise. +.br +.if t .ne 6 +.LP +.ft B +.nf +.sp .5 +void +clnt_geterr(clnt, errp) +\s-1CLIENT\s0 *clnt; +struct rpc_err *errp; +.fi +.ft R +.IP +A macro that copies the error structure out of the client +handle +to the structure at address +.IR errp . +.br +.if t .ne 8 +.LP +.ft B +.nf +.sp .5 +void +clnt_pcreateerror(s) +char *s; +.fi +.ft R +.IP +Print a message to standard error indicating +why a client +.SM RPC +handle could not be created. +The message is prepended with string +.I s +and a colon. +Used when a +.BR clnt_create(\|) , +.BR clntraw_create(\|) , +.BR clnttcp_create(\|) , +or +.B clntudp_create(\|) +call fails. +.br +.if t .ne 8 +.LP +.ft B +.nf +.sp .5 +void +clnt_perrno(stat) +enum clnt_stat stat; +.fi +.ft R +.IP +Print a message to standard error corresponding +to the condition indicated by +.IR stat . +Used after +.BR callrpc(\|) . +.br +.if t .ne 8 +.LP +.ft B +.nf +.sp .5 +clnt_perror(clnt, s) +\s-1CLIENT\s0 *clnt; +char *s; +.fi +.ft R +.IP +Print a message to standard error indicating why an +.SM RPC +call failed; +.I clnt +is the handle used to do the call. +The message is prepended with string +.I s +and a colon. +Used after +.BR clnt_call(\|) . +.br +.if t .ne 9 +.LP +.ft B +.nf +.sp .5 +char * +clnt_spcreateerror +char *s; +.fi +.ft R +.IP +Like +.BR clnt_pcreateerror(\|) , +except that it returns a string +instead of printing to the standard error. +.IP +Bugs: returns pointer to static data that is overwritten +on each call. +.br +.if t .ne 9 +.LP +.ft B +.nf +.sp .5 +char * +clnt_sperrno(stat) +enum clnt_stat stat; +.fi +.ft R +.IP +Take the same arguments as +.BR clnt_perrno(\|) , +but instead of sending a message to the standard error +indicating why an +.SM RPC +call failed, return a pointer to a string which contains +the message. The string ends with a +.SM NEWLINE\s0. +.IP +.B clnt_sperrno(\|) +is used instead of +.B clnt_perrno(\|) +if the program does not have a standard error (as a program +running as a server quite likely does not), or if the +programmer +does not want the message to be output with +.BR printf , +or if a message format different than that supported by +.B clnt_perrno(\|) +is to be used. +Note: unlike +.B clnt_sperror(\|) +and +.BR clnt_spcreaterror(\|) , +.B clnt_sperrno(\|) +returns pointer to static data, but the +result will not get overwritten on each call. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +char * +clnt_sperror(rpch, s) +\s-1CLIENT\s0 *rpch; +char *s; +.fi +.ft R +.IP +Like +.BR clnt_perror(\|) , +except that (like +.BR clnt_sperrno(\|) ) +it returns a string instead of printing to standard error. +.IP +Bugs: returns pointer to static data that is overwritten +on each call. +.br +.if t .ne 10 +.LP +.ft B +.nf +.sp .5 +\s-1CLIENT\s0 * +clntraw_create(prognum, versnum) +u_long prognum, versnum; +.fi +.ft R +.IP +This routine creates a toy +.SM RPC +client for the remote program +.IR prognum , +version +.IR versnum . +The transport used to pass messages to the service is +actually a buffer within the process's address space, so the +corresponding +.SM RPC +server should live in the same address space; see +.BR svcraw_create(\|) . +This allows simulation of +.SM RPC +and acquisition of +.SM RPC +overheads, such as round trip times, without any +kernel interference. This routine returns +.SM NULL +if it fails. +.br +.if t .ne 15 +.LP +.ft B +.nf +.sp .5 +\s-1CLIENT\s0 * +clnttcp_create(addr, prognum, versnum, sockp, sendsz, recvsz) +struct sockaddr_in *addr; +u_long prognum, versnum; +int *sockp; +u_int sendsz, recvsz; +.fi +.ft R +.IP +This routine creates an +.SM RPC +client for the remote program +.IR prognum , +version +.IR versnum ; +the client uses +.SM TCP/IP +as a transport. The remote program is located at Internet +address +.IR *addr . +If +.\"The following in-line font conversion is necessary for the hyphen indicator +\fB\%addr\->sin_port\fR +is zero, then it is set to the actual port that the remote +program is listening on (the remote +.B portmap +service is consulted for this information). The parameter +.I sockp +is a socket; if it is +.BR \s-1RPC_ANYSOCK\s0 , +then this routine opens a new one and sets +.IR sockp . +Since +.SM TCP\s0-based +.SM RPC +uses buffered +.SM I/O , +the user may specify the size of the send and receive buffers +with the parameters +.I sendsz +and +.IR recvsz ; +values of zero choose suitable defaults. +This routine returns +.SM NULL +if it fails. +.br +.if t .ne 15 +.LP +.ft B +.nf +.sp .5 +\s-1CLIENT\s0 * +clntudp_create(addr, prognum, versnum, wait, sockp) +struct sockaddr_in *addr; +u_long prognum, versnum; +struct timeval wait; +int *sockp; +.fi +.ft R +.IP +This routine creates an +.SM RPC +client for the remote program +.IR prognum , +version +.IR versnum ; +the client uses use +.SM UDP/IP +as a transport. The remote program is located at Internet +address +.IR addr . +If +\fB\%addr\->sin_port\fR +is zero, then it is set to actual port that the remote +program is listening on (the remote +.B portmap +service is consulted for this information). The parameter +.I sockp +is a socket; if it is +.BR \s-1RPC_ANYSOCK\s0 , +then this routine opens a new one and sets +.IR sockp . +The +.SM UDP +transport resends the call message in intervals of +.B wait +time until a response is received or until the call times +out. +The total time for the call to time out is specified by +.BR clnt_call(\|) . +.IP +Warning: since +.SM UDP\s0-based +.SM RPC +messages can only hold up to 8 Kbytes +of encoded data, this transport cannot be used for procedures +that take large arguments or return huge results. +.br +.if t .ne 8 +.LP +.ft B +.nf +.sp .5 +\s-1CLIENT\s0 * +clntudp_bufcreate(addr, prognum, versnum, wait, sockp, sendsize, recosize) +struct sockaddr_in *addr; +u_long prognum, versnum; +struct timeval wait; +int *sockp; +unsigned int sendsize; +unsigned int recosize; +.fi +.ft R +.IP +This routine creates an +.SM RPC +client for the remote program +.IR prognum , +on +.IR versnum ; +the client uses use +.SM UDP/IP +as a transport. The remote program is located at Internet +address +.IR addr . +If +\fB\%addr\->sin_port\fR +is zero, then it is set to actual port that the remote +program is listening on (the remote +.B portmap +service is consulted for this information). The parameter +.I sockp +is a socket; if it is +.BR \s-1RPC_ANYSOCK\s0 , +then this routine opens a new one and sets +.BR sockp . +The +.SM UDP +transport resends the call message in intervals of +.B wait +time until a response is received or until the call times +out. +The total time for the call to time out is specified by +.BR clnt_call(\|) . +.IP +This allows the user to specify the maximun packet size for sending and receiving +.SM UDP\s0-based +.SM RPC +messages. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +void +get_myaddress(addr) +struct sockaddr_in *addr; +.fi +.ft R +.IP +Stuff the machine's +.SM IP +address into +.IR *addr , +without consulting the library routines that deal with +.BR /etc/hosts . +The port number is always set to +.BR htons(\s-1PMAPPORT\s0) . +.br +.if t .ne 10 +.LP +.ft B +.nf +.sp .5 +struct pmaplist * +pmap_getmaps(addr) +struct sockaddr_in *addr; +.fi +.ft R +.IP +A user interface to the +.B portmap +service, which returns a list of the current +.SM RPC +program-to-port mappings +on the host located at +.SM IP +address +.IR *addr . +This routine can return +.SM NULL . +The command +.RB ` "rpcinfo \-p" ' +uses this routine. +.br +.if t .ne 12 +.LP +.ft B +.nf +.sp .5 +u_short +pmap_getport(addr, prognum, versnum, protocol) +struct sockaddr_in *addr; +u_long prognum, versnum, protocol; +.fi +.ft R +.IP +A user interface to the +.B portmap +service, which returns the port number +on which waits a service that supports program number +.IR prognum , +version +.IR versnum , +and speaks the transport protocol associated with +.IR protocol . +The value of +.I protocol +is most likely +.B +.SM IPPROTO_UDP +or +.BR \s-1IPPROTO_TCP\s0 . +A return value of zero means that the mapping does not exist +or that +the +.SM RPC +system failured to contact the remote +.B portmap +service. In the latter case, the global variable +.B rpc_createerr(\|) +contains the +.SM RPC +status. +.br +.if t .ne 15 +.LP +.ft B +.nf +.sp .5 +enum clnt_stat +pmap_rmtcall(addr, prognum, versnum, procnum, inproc, in, outproc, out, tout, portp) +struct sockaddr_in *addr; +u_long prognum, versnum, procnum; +char *in, *out; +xdrproc_t inproc, outproc; +struct timeval tout; +u_long *portp; +.fi +.ft R +.IP +A user interface to the +.B portmap +service, which instructs +.B portmap +on the host at +.SM IP +address +.I *addr +to make an +.SM RPC +call on your behalf to a procedure on that host. +The parameter +.I *portp +will be modified to the program's port number if the +procedure +succeeds. The definitions of other parameters are discussed +in +.B callrpc(\|) +and +.BR clnt_call(\|) . +This procedure should be used for a \(lqping\(rq and nothing +else. +See also +.BR clnt_broadcast(\|) . +.br +.if t .ne 9 +.LP +.ft B +.nf +.sp .5 +pmap_set(prognum, versnum, protocol, port) +u_long prognum, versnum, protocol; +u_short port; +.fi +.ft R +.IP +A user interface to the +.B portmap +service, which establishes a mapping between the triple +.RI [ prognum , versnum , protocol\fR] +and +.I port +on the machine's +.B portmap +service. The value of +.I protocol +is most likely +.B +.SM IPPROTO_UDP +or +.BR \s-1IPPROTO_TCP\s0 . +This routine returns one if it succeeds, zero otherwise. +Automatically done by +.BR svc_register(\|) . +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +pmap_unset(prognum, versnum) +u_long prognum, versnum; +.fi +.ft R +.IP +A user interface to the +.B portmap +service, which destroys all mapping between the triple +.RI [ prognum , versnum , *\fR] +and +.B ports +on the machine's +.B portmap +service. This routine returns one if it succeeds, zero +otherwise. +.br +.if t .ne 15 +.LP +.ft B +.nf +.sp .5 +registerrpc(prognum, versnum, procnum, procname, inproc, outproc) +u_long prognum, versnum, procnum; +char *(*procname) (\|) ; +xdrproc_t inproc, outproc; +.fi +.ft R +.IP +Register procedure +.I procname +with the +.SM RPC +service package. If a request arrives for program +.IR prognum , +version +.IR versnum , +and procedure +.IR procnum , +.I procname +is called with a pointer to its parameter(s); +.I progname +should return a pointer to its static result(s); +.I inproc +is used to decode the parameters while +.I outproc +is used to encode the results. +This routine returns zero if the registration succeeded, \-1 +otherwise. +.IP +Warning: remote procedures registered in this form +are accessed using the +.SM UDP/IP +transport; see +.B svcudp_create(\|) +for restrictions. +.br +.if t .ne 5 +.LP +.ft B +.nf +.sp .5 +struct rpc_createerr rpc_createerr; +.fi +.ft R +.IP +A global variable whose value is set by any +.SM RPC +client creation routine +that does not succeed. Use the routine +.B clnt_pcreateerror(\|) +to print the reason why. +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +svc_destroy(xprt) +\s-1SVCXPRT\s0 * +xprt; +.fi +.ft R +.IP +A macro that destroys the +.SM RPC +service transport handle, +.IR xprt . +Destruction usually involves deallocation +of private data structures, including +.I xprt +itself. Use of +.I xprt +is undefined after calling this routine. +.br +.if t .ne 8 +.LP +.ft B +.nf +.sp .5 +fd_set svc_fdset; +.fi +.ft R +.IP +A global variable reflecting the +.SM RPC +service side's +read file descriptor bit mask; it is suitable as a parameter +to the +.B select +system call. This is only of interest +if a service implementor does not call +.BR svc_run(\|) , +but rather does his own asynchronous event processing. +This variable is read-only (do not pass its address to +.BR select !), +yet it may change after calls to +.B svc_getreqset(\|) +or any creation routines. +.br +.if t .ne 6 +.LP +.ft B +.nf +.sp .5 +int svc_fds; +.fi +.ft R +.IP +Similar to +.BR svc_fedset(\|) , +but limited to 32 descriptors. This +interface is obsoleted by +.BR svc_fdset(\|) . +.br +.if t .ne 9 +.LP +.ft B +.nf +.sp .5 +svc_freeargs(xprt, inproc, in) +\s-1SVCXPRT\s0 *xprt; +xdrproc_t inproc; +char *in; +.fi +.ft R +.IP +A macro that frees any data allocated by the +.SM RPC/XDR +system when it decoded the arguments to a service procedure +using +.BR svc_getargs(\|) . +This routine returns 1 if the results were successfully +freed, +and zero otherwise. +.br +.if t .ne 10 +.LP +.ft B +.nf +.sp .5 +svc_getargs(xprt, inproc, in) +\s-1SVCXPRT\s0 *xprt; +xdrproc_t inproc; +char *in; +.fi +.ft R +.IP +A macro that decodes the arguments of an +.SM RPC +request +associated with the +.SM RPC +service transport handle, +.IR xprt . +The parameter +.I in +is the address where the arguments will be placed; +.I inproc +is the +.SM XDR +routine used to decode the arguments. +This routine returns one if decoding succeeds, and zero +otherwise. +.br +.if t .ne 9 +.LP +.ft B +.nf +.sp .5 +struct sockaddr_in * +svc_getcaller(xprt) +\s-1SVCXPRT\s0 *xprt; +.fi +.ft R +.IP +The approved way of getting the network address of the caller +of a procedure associated with the +.SM RPC +service transport handle, +.IR xprt . +.br +.if t .ne 9 +.LP +.ft B +.nf +.sp .5 +svc_getreqset(rdfds) +fd_set *rdfds; +.fi +.ft R +.IP +This routine is only of interest if a service implementor +does not call +.BR svc_run(\|) , +but instead implements custom asynchronous event processing. +It is called when the +.B select +system call has determined that an +.SM RPC +request has arrived on some +.SM RPC +.B socket(s) ; +.I rdfds +is the resultant read file descriptor bit mask. +The routine returns when all sockets associated with the +value of +.I rdfds +have been serviced. +.br +.if t .ne 6 +.LP +.ft B +.nf +.sp .5 +svc_getreq(rdfds) +int rdfds; +.fi +.ft R +.IP +Similar to +.BR svc_getreqset(\|) , +but limited to 32 descriptors. This interface is obsoleted by +.BR svc_getreqset(\|) . +.br +.if t .ne 17 +.LP +.ft B +.nf +.sp .5 +svc_register(xprt, prognum, versnum, dispatch, protocol) +\s-1SVCXPRT\s0 *xprt; +u_long prognum, versnum; +void (*dispatch) (\|); +u_long protocol; +.fi +.ft R +.IP +Associates +.I prognum +and +.I versnum +with the service dispatch procedure, +.IR dispatch . +If +.I protocol +is zero, the service is not registered with the +.B portmap +service. If +.I protocol +is non-zero, then a mapping of the triple +.RI [ prognum , versnum , protocol\fR] +to +\fB\%xprt\->xp_port\fR +is established with the local +.B portmap +service (generally +.I protocol +is zero, +.B +.SM IPPROTO_UDP +or +.B +.SM IPPROTO_TCP +). +The procedure +.I dispatch +has the following form: +.RS 1i +.ft B +.nf +dispatch(request, xprt) +struct svc_req *request; +\s-1SVCXPRT\s0 *xprt; +.ft R +.fi +.RE +.IP +The +.B svc_register(\|) +routine returns one if it succeeds, and zero otherwise. +.br +.if t .ne 6 +.LP +.ft B +.nf +.sp .5 +svc_run(\|) +.fi +.ft R +.IP +This routine never returns. It waits for +.SM RPC +requests to arrive, and calls the appropriate service +procedure using +.B svc_getreq(\|) +when one arrives. This procedure is usually waiting for a +.B select(\|) +system call to return. +.br +.if t .ne 9 +.LP +.ft B +.nf +.sp .5 +svc_sendreply(xprt, outproc, out) +\s-1SVCXPRT\s0 *xprt; +xdrproc_t outproc; +char *out; +.fi +.ft R +.IP +Called by an +.SM RPC +service's dispatch routine to send the results of a +remote procedure call. The parameter +.I xprt +is the request's associated transport handle; +.I outproc +is the +.SM XDR +routine which is used to encode the results; and +.I out +is the address of the results. +This routine returns one if it succeeds, zero otherwise. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +void +svc_unregister(prognum, versnum) +u_long prognum, versnum; +.fi +.ft R +.IP +Remove all mapping of the double +.RI [ prognum , versnum ] +to dispatch routines, and of the triple +.RI [ prognum , versnum , *\fR] +to port number. +.br +.if t .ne 9 +.LP +.ft B +.nf +.sp .5 +void +svcerr_auth(xprt, why) +\s-1SVCXPRT\s0 *xprt; +enum auth_stat why; +.fi +.ft R +.IP +Called by a service dispatch routine that refuses to perform +a remote procedure call due to an authentication error. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +void +svcerr_decode(xprt) +\s-1SVCXPRT\s0 *xprt; +.fi +.ft R +.IP +Called by a service dispatch routine that cannot successfully +decode its parameters. See also +.BR svc_getargs(\|) . +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +void +svcerr_noproc(xprt) +\s-1SVCXPRT\s0 *xprt; +.fi +.ft R +.IP +Called by a service dispatch routine that does not implement +the procedure number that the caller requests. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +void +svcerr_noprog(xprt) +\s-1SVCXPRT\s0 *xprt; +.fi +.ft R +.IP +Called when the desired program is not registered with the +.SM RPC +package. Service implementors usually do not need this routine. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +void +svcerr_progvers(xprt) +\s-1SVCXPRT\s0 *xprt; +.fi +.ft R +.IP +Called when the desired version of a program is not registered +with the +.SM RPC +package. Service implementors usually do not need this routine. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +void +svcerr_systemerr(xprt) +\s-1SVCXPRT\s0 *xprt; +.fi +.ft R +.IP +Called by a service dispatch routine when it detects a system +error +not covered by any particular protocol. +For example, if a service can no longer allocate storage, +it may call this routine. +.br +.if t .ne 8 +.LP +.ft B +.nf +.sp .5 +void +svcerr_weakauth(xprt) +\s-1SVCXPRT\s0 *xprt; +.fi +.ft R +.IP +Called by a service dispatch routine that refuses to perform +a remote procedure call due to insufficient +authentication parameters. The routine calls +.BR "svcerr_auth(xprt, \s-1AUTH_TOOWEAK\s0)" . +.br +.if t .ne 11 +.LP +.ft B +.nf +.sp .5 +\s-1SVCXPRT\s0 * +svcraw_create(\|) +.fi +.ft R +.IP +This routine creates a toy +.SM RPC +service transport, to which it returns a pointer. The +transport +is really a buffer within the process's address space, +so the corresponding +.SM RPC +client should live in the same +address space; +see +.BR clntraw_create(\|) . +This routine allows simulation of +.SM RPC +and acquisition of +.SM RPC +overheads (such as round trip times), without any kernel +interference. +This routine returns +.SM NULL +if it fails. +.br +.if t .ne 11 +.LP +.ft B +.nf +.sp .5 +\s-1SVCXPRT\s0 * +svctcp_create(sock, send_buf_size, recv_buf_size) +int sock; +u_int send_buf_size, recv_buf_size; +.fi +.ft R +.IP +This routine creates a +.SM TCP/IP\s0-based +.SM RPC +service transport, to which it returns a pointer. +The transport is associated with the socket +.IR sock , +which may be +.BR \s-1RPC_ANYSOCK\s0 , +in which case a new socket is created. +If the socket is not bound to a local +.SM TCP +port, then this routine binds it to an arbitrary port. Upon +completion, +\fB\%xprt\->xp_sock\fR +is the transport's socket descriptor, and +\fB\%xprt\->xp_port\fR +is the transport's port number. +This routine returns +.SM NULL +if it fails. Since +.SM TCP\s0-based +.SM RPC +uses buffered +.SM I/O , +users may specify the size of buffers; values of zero +choose suitable defaults. +.br +.if t .ne 11 +.LP +.ft B +.nf +.sp .5 +\s-1SVCXPRT\s0 * +svcfd_create(fd, sendsize, recvsize) +int fd; +u_int sendsize; +u_int recvsize; +.fi +.ft R +.IP +Create a service on top of any open descriptor. Typically, +this +descriptor is a connected socket for a stream protocol such +as +.SM TCP\s0. +.I sendsize +and +.I recvsize +indicate sizes for the send and receive buffers. If they are +zero, a reasonable default is chosen. +.br +.if t .ne 10 +.LP +.ft B +.nf +.sp .5 +\s-1SVCXPRT\s0 * +svcudp_bufcreate(sock, sendsize, recosize) +int sock; +.fi +.ft R +.IP +This routine creates a +.SM UDP/IP\s0-based +.SM RPC +service transport, to which it returns a pointer. +The transport is associated with the socket +.IR sock , +which may be +.B \s-1RPC_ANYSOCK\s0 , +in which case a new socket is created. +If the socket is not bound to a local +.SM UDP +port, then this routine binds it to an arbitrary port. Upon +completion, +\fB\%xprt\->xp_sock\fR +is the transport's socket descriptor, and +\fB\%xprt\->xp_port\fR +is the transport's port number. +This routine returns +.SM NULL +if it fails. +.IP +This allows the user to specify the maximun packet size for sending and +receiving +.SM UDP\s0-based +.SM RPC messages. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +xdr_accepted_reply(xdrs, ar) +\s-1XDR\s0 *xdrs; +struct accepted_reply *ar; +.fi +.ft R +.IP +Used for encoding +.SM RPC +reply messages. This routine is useful for users who +wish to generate +\s-1RPC\s0-style +messages without using the +.SM RPC +package. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +xdr_authunix_parms(xdrs, aupp) +\s-1XDR\s0 *xdrs; +struct authunix_parms *aupp; +.fi +.ft R +.IP +Used for describing +.SM UNIX +credentials. This routine is useful for users +who wish to generate these credentials without using the +.SM RPC +authentication package. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +void +xdr_callhdr(xdrs, chdr) +\s-1XDR\s0 *xdrs; +struct rpc_msg *chdr; +.fi +.ft R +.IP +Used for describing +.SM RPC +call header messages. +This routine is useful for users who wish to generate +.SM RPC\s0-style +messages without using the +.SM RPC +package. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +xdr_callmsg(xdrs, cmsg) +\s-1XDR\s0 *xdrs; +struct rpc_msg *cmsg; +.fi +.ft R +.IP +Used for describing +.SM RPC +call messages. +This routine is useful for users who wish to generate +.SM RPC\s0-style +messages without using the +.SM RPC +package. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +xdr_opaque_auth(xdrs, ap) +\s-1XDR\s0 *xdrs; +struct opaque_auth *ap; +.fi +.ft R +.IP +Used for describing +.SM RPC +authentication information messages. +This routine is useful for users who wish to generate +.SM RPC\s0-style +messages without using the +.SM RPC +package. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +xdr_pmap(xdrs, regs) +\s-1XDR\s0 *xdrs; +struct pmap *regs; +.fi +.ft R +.IP +Used for describing parameters to various +.B portmap +procedures, externally. +This routine is useful for users who wish to generate +these parameters without using the +.B pmap +interface. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +xdr_pmaplist(xdrs, rp) +\s-1XDR\s0 *xdrs; +struct pmaplist **rp; +.fi +.ft R +.IP +Used for describing a list of port mappings, externally. +This routine is useful for users who wish to generate +these parameters without using the +.B pmap +interface. +.br +.if t .ne 7 +.LP +.ft B +.nf +.sp .5 +xdr_rejected_reply(xdrs, rr) +\s-1XDR\s0 *xdrs; +struct rejected_reply *rr; +.fi +.ft R +.IP +Used for describing +.SM RPC +reply messages. +This routine is useful for users who wish to generate +.SM RPC\s0-style +messages without using the +.SM RPC +package. +.br +.if t .ne 8 +.LP +.ft B +.nf +.sp .5 +xdr_replymsg(xdrs, rmsg) +\s-1XDR\s0 *xdrs; +struct rpc_msg *rmsg; +.fi +.ft R +.IP +Used for describing +.SM RPC +reply messages. +This routine is useful for users who wish to generate +.SM RPC +style messages without using the +.SM RPC +package. +.br +.if t .ne 8 +.LP +.ft B +.nf +.sp .5 +void +xprt_register(xprt) +\s-1SVCXPRT\s0 *xprt; +.fi +.ft R +.IP +After +.SM RPC +service transport handles are created, +they should register themselves with the +.SM RPC +service package. +This routine modifies the global variable +.BR svc_fds(\|) . +Service implementors usually do not need this routine. +.br +.if t .ne 8 +.LP +.ft B +.nf +.sp .5 +void +xprt_unregister(xprt) +\s-1SVCXPRT\s0 *xprt; +.fi +.ft R +.IP +Before an +.SM RPC +service transport handle is destroyed, +it should unregister itself with the +.SM RPC +service package. +This routine modifies the global variable +.BR svc_fds(\|) . +Service implementors usually do not need this routine. +.SH SEE ALSO +.BR rpc_secure (3N), +.BR xdr (3N) +.br +The following manuals: +.RS +.ft I +Remote Procedure Calls: Protocol Specification +.br +Remote Procedure Call Programming Guide +.br +rpcgen Programming Guide +.br +.ft R +.RE +.IR "\s-1RPC\s0: Remote Procedure Call Protocol Specification" , +.SM RFC1050, Sun Microsystems, Inc., +.SM USC-ISI\s0. + diff --git a/lib/libc/rpc/rpc.5 b/lib/libc/rpc/rpc.5 new file mode 100644 index 0000000..324ecb1 --- /dev/null +++ b/lib/libc/rpc/rpc.5 @@ -0,0 +1,71 @@ +.\" @(#)rpc.5 2.2 88/08/03 4.0 RPCSRC; from 1.4 87/11/27 SMI; +.TH RPC 5 "26 September 1985" +.SH NAME +rpc \- rpc program number data base +.SH SYNOPSIS +.B /etc/rpc +.SH DESCRIPTION +The +.I rpc +file contains user readable names that +can be used in place of rpc program numbers. +Each line has the following information: +.HP 10 +name of server for the rpc program +.br +.ns +.HP 10 +rpc program number +.br +.ns +.HP 10 +aliases +.LP +Items are separated by any number of blanks and/or +tab characters. +A ``#'' indicates the beginning of a comment; characters up to the end of +the line are not interpreted by routines which search the file. +.LP +Here is an example of the \fI/etc/rpc\fP file from the Sun RPC Source +distribution. +.nf +.ta 1.5i +0.5i +1.0i +1.0i +# +# rpc 88/08/01 4.0 RPCSRC; from 1.12 88/02/07 SMI +# +portmapper 100000 portmap sunrpc +rstatd 100001 rstat rstat_svc rup perfmeter +rusersd 100002 rusers +nfs 100003 nfsprog +ypserv 100004 ypprog +mountd 100005 mount showmount +ypbind 100007 +walld 100008 rwall shutdown +yppasswdd 100009 yppasswd +etherstatd 100010 etherstat +rquotad 100011 rquotaprog quota rquota +sprayd 100012 spray +3270_mapper 100013 +rje_mapper 100014 +selection_svc 100015 selnsvc +database_svc 100016 +rexd 100017 rex +alis 100018 +sched 100019 +llockmgr 100020 +nlockmgr 100021 +x25.inr 100022 +statmon 100023 +status 100024 +bootparam 100026 +ypupdated 100028 ypupdate +keyserv 100029 keyserver +tfsd 100037 +nsed 100038 +nsemntd 100039 +.fi +.DT +.SH FILES +/etc/rpc +.SH "SEE ALSO" +getrpcent(3N) diff --git a/lib/libc/rpc/rpc_callmsg.c b/lib/libc/rpc/rpc_callmsg.c new file mode 100644 index 0000000..4ec59db --- /dev/null +++ b/lib/libc/rpc/rpc_callmsg.c @@ -0,0 +1,192 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)rpc_callmsg.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: rpc_callmsg.c,v 1.1 1993/10/27 05:40:46 paul Exp $"; +#endif + +/* + * rpc_callmsg.c + * + * Copyright (C) 1984, Sun Microsystems, Inc. + * + */ + +#include <sys/param.h> + +#include <rpc/rpc.h> + +/* + * XDR a call message + */ +bool_t +xdr_callmsg(xdrs, cmsg) + register XDR *xdrs; + register struct rpc_msg *cmsg; +{ + register long *buf; + register struct opaque_auth *oa; + + if (xdrs->x_op == XDR_ENCODE) { + if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) { + return (FALSE); + } + if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) { + return (FALSE); + } + buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT + + RNDUP(cmsg->rm_call.cb_cred.oa_length) + + 2 * BYTES_PER_XDR_UNIT + + RNDUP(cmsg->rm_call.cb_verf.oa_length)); + if (buf != NULL) { + IXDR_PUT_LONG(buf, cmsg->rm_xid); + IXDR_PUT_ENUM(buf, cmsg->rm_direction); + if (cmsg->rm_direction != CALL) { + return (FALSE); + } + IXDR_PUT_LONG(buf, cmsg->rm_call.cb_rpcvers); + if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { + return (FALSE); + } + IXDR_PUT_LONG(buf, cmsg->rm_call.cb_prog); + IXDR_PUT_LONG(buf, cmsg->rm_call.cb_vers); + IXDR_PUT_LONG(buf, cmsg->rm_call.cb_proc); + oa = &cmsg->rm_call.cb_cred; + IXDR_PUT_ENUM(buf, oa->oa_flavor); + IXDR_PUT_LONG(buf, oa->oa_length); + if (oa->oa_length) { + bcopy(oa->oa_base, (caddr_t)buf, oa->oa_length); + buf += RNDUP(oa->oa_length) / sizeof (long); + } + oa = &cmsg->rm_call.cb_verf; + IXDR_PUT_ENUM(buf, oa->oa_flavor); + IXDR_PUT_LONG(buf, oa->oa_length); + if (oa->oa_length) { + bcopy(oa->oa_base, (caddr_t)buf, oa->oa_length); + /* no real need.... + buf += RNDUP(oa->oa_length) / sizeof (long); + */ + } + return (TRUE); + } + } + if (xdrs->x_op == XDR_DECODE) { + buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT); + if (buf != NULL) { + cmsg->rm_xid = IXDR_GET_LONG(buf); + cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); + if (cmsg->rm_direction != CALL) { + return (FALSE); + } + cmsg->rm_call.cb_rpcvers = IXDR_GET_LONG(buf); + if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { + return (FALSE); + } + cmsg->rm_call.cb_prog = IXDR_GET_LONG(buf); + cmsg->rm_call.cb_vers = IXDR_GET_LONG(buf); + cmsg->rm_call.cb_proc = IXDR_GET_LONG(buf); + oa = &cmsg->rm_call.cb_cred; + oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); + oa->oa_length = IXDR_GET_LONG(buf); + if (oa->oa_length) { + if (oa->oa_length > MAX_AUTH_BYTES) { + return (FALSE); + } + if (oa->oa_base == NULL) { + oa->oa_base = (caddr_t) + mem_alloc(oa->oa_length); + } + buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); + if (buf == NULL) { + if (xdr_opaque(xdrs, oa->oa_base, + oa->oa_length) == FALSE) { + return (FALSE); + } + } else { + bcopy((caddr_t)buf, oa->oa_base, + oa->oa_length); + /* no real need.... + buf += RNDUP(oa->oa_length) / + sizeof (long); + */ + } + } + oa = &cmsg->rm_call.cb_verf; + buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT); + if (buf == NULL) { + if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE || + xdr_u_int(xdrs, &oa->oa_length) == FALSE) { + return (FALSE); + } + } else { + oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); + oa->oa_length = IXDR_GET_LONG(buf); + } + if (oa->oa_length) { + if (oa->oa_length > MAX_AUTH_BYTES) { + return (FALSE); + } + if (oa->oa_base == NULL) { + oa->oa_base = (caddr_t) + mem_alloc(oa->oa_length); + } + buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); + if (buf == NULL) { + if (xdr_opaque(xdrs, oa->oa_base, + oa->oa_length) == FALSE) { + return (FALSE); + } + } else { + bcopy((caddr_t)buf, oa->oa_base, + oa->oa_length); + /* no real need... + buf += RNDUP(oa->oa_length) / + sizeof (long); + */ + } + } + return (TRUE); + } + } + if ( + xdr_u_long(xdrs, &(cmsg->rm_xid)) && + xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) && + (cmsg->rm_direction == CALL) && + xdr_u_long(xdrs, &(cmsg->rm_call.cb_rpcvers)) && + (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) && + xdr_u_long(xdrs, &(cmsg->rm_call.cb_prog)) && + xdr_u_long(xdrs, &(cmsg->rm_call.cb_vers)) && + xdr_u_long(xdrs, &(cmsg->rm_call.cb_proc)) && + xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) ) + return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf))); + return (FALSE); +} + diff --git a/lib/libc/rpc/rpc_commondata.c b/lib/libc/rpc/rpc_commondata.c new file mode 100644 index 0000000..e870ab8 --- /dev/null +++ b/lib/libc/rpc/rpc_commondata.c @@ -0,0 +1,46 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)rpc_commondata.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: rpc_commondata.c,v 1.1 1993/10/27 05:40:47 paul Exp $"; +#endif + +#include <rpc/rpc.h> +/* + * This file should only contain common data (global data) that is exported + * by public interfaces + */ +struct opaque_auth _null_auth; +#ifdef FD_SETSIZE +fd_set svc_fdset; +#else +int svc_fds; +#endif /* def FD_SETSIZE */ +struct rpc_createerr rpc_createerr; diff --git a/lib/libc/rpc/rpc_dtablesize.c b/lib/libc/rpc/rpc_dtablesize.c new file mode 100644 index 0000000..c4a2ac4 --- /dev/null +++ b/lib/libc/rpc/rpc_dtablesize.c @@ -0,0 +1,48 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)rpc_dtablesize.c 1.2 87/08/11 Copyr 1987 Sun Micro";*/ +/*static char *sccsid = "from: @(#)rpc_dtablesize.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: rpc_dtablesize.c,v 1.1 1993/10/27 05:40:48 paul Exp $"; +#endif + +/* + * Cache the result of getdtablesize(), so we don't have to do an + * expensive system call every time. + */ +_rpc_dtablesize() +{ + static int size; + + if (size == 0) { + size = getdtablesize(); + } + return (size); +} diff --git a/lib/libc/rpc/rpc_prot.c b/lib/libc/rpc/rpc_prot.c new file mode 100644 index 0000000..7fbb36f --- /dev/null +++ b/lib/libc/rpc/rpc_prot.c @@ -0,0 +1,291 @@ +/* + * Sun RPC is a product of Sun Microsystems, Inc. and is provided for + * unrestricted use provided that this legend is included on all tape + * media and as a part of the software program in whole or part. Users + * may copy or modify Sun RPC without charge, but are not authorized + * to license or distribute it to anyone else except as part of a product or + * program developed by the user. + * + * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE + * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. + * + * Sun RPC is provided with no support and without any obligation on the + * part of Sun Microsystems, Inc. to assist in its use, correction, + * modification or enhancement. + * + * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE + * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC + * OR ANY PART THEREOF. + * + * In no event will Sun Microsystems, Inc. be liable for any lost revenue + * or profits or other special, indirect and consequential damages, even if + * Sun has been advised of the possibility of such damages. + * + * Sun Microsystems, Inc. + * 2550 Garcia Avenue + * Mountain View, California 94043 + */ + +#if defined(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)rpc_prot.c 1.36 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)rpc_prot.c 2.3 88/08/07 4.0 RPCSRC";*/ +static char *rcsid = "$Id: rpc_prot.c,v 1.1 1993/10/27 05:40:50 paul Exp $"; +#endif + +/* + * rpc_prot.c + * + * Copyright (C) 1984, Sun Microsystems, Inc. + * + * This set of routines implements the rpc message definition, + * its serializer and some common rpc utility routines. + * The routines are meant for various implementations of rpc - + * they are NOT for the rpc client or rpc service implementations! + * Because authentication stuff is easy and is part of rpc, the opaque + * routines are also in this program. + */ + +#include <sys/param.h> + +#include <rpc/rpc.h> + +/* * * * * * * * * * * * * * XDR Authentication * * * * * * * * * * * */ + +struct opaque_auth _null_auth; + +/* + * XDR an opaque authentication struct + * (see auth.h) + */ +bool_t +xdr_opaque_auth(xdrs, ap) + register XDR *xdrs; + register struct opaque_auth *ap; +{ + + if (xdr_enum(xdrs, &(ap->oa_flavor))) + return (xdr_bytes(xdrs, &ap->oa_base, + &ap->oa_length, MAX_AUTH_BYTES)); + return (FALSE); +} + +/* + * XDR a DES block + */ +bool_t +xdr_des_block(xdrs, blkp) + register XDR *xdrs; + register des_block *blkp; +{ + return (xdr_opaque(xdrs, (caddr_t)blkp, sizeof(des_block))); +} + +/* * * * * * * * * * * * * * XDR RPC MESSAGE * * * * * * * * * * * * * * * */ + +/* + * XDR the MSG_ACCEPTED part of a reply message union + */ +bool_t +xdr_accepted_reply(xdrs, ar) + register XDR *xdrs; + register struct accepted_reply *ar; +{ + + /* personalized union, rather than calling xdr_union */ + if (! xdr_opaque_auth(xdrs, &(ar->ar_verf))) + return (FALSE); + if (! xdr_enum(xdrs, (enum_t *)&(ar->ar_stat))) + return (FALSE); + switch (ar->ar_stat) { + + case SUCCESS: + return ((*(ar->ar_results.proc))(xdrs, ar->ar_results.where)); + + case PROG_MISMATCH: + if (! xdr_u_long(xdrs, &(ar->ar_vers.low))) + return (FALSE); + return (xdr_u_long(xdrs, &(ar->ar_vers.high))); + } + return (TRUE); /* TRUE => open ended set of problems */ +} + +/* + * XDR the MSG_DENIED part of a reply message union + */ +bool_t +xdr_rejected_reply(xdrs, rr) + register XDR *xdrs; + register struct rejected_reply *rr; +{ + + /* personalized union, rather than calling xdr_union */ + if (! xdr_enum(xdrs, (enum_t *)&(rr->rj_stat))) + return (FALSE); + switch (rr->rj_stat) { + + case RPC_MISMATCH: + if (! xdr_u_long(xdrs, &(rr->rj_vers.low))) + return (FALSE); + return (xdr_u_long(xdrs, &(rr->rj_vers.high))); + + case AUTH_ERROR: + return (xdr_enum(xdrs, (enum_t *)&(rr->rj_why))); + } + return (FALSE); +} + +static struct xdr_discrim reply_dscrm[3] = { + { (int)MSG_ACCEPTED, xdr_accepted_reply }, + { (int)MSG_DENIED, xdr_rejected_reply }, + { __dontcare__, NULL_xdrproc_t } }; + +/* + * XDR a reply message + */ +bool_t +xdr_replymsg(xdrs, rmsg) + register XDR *xdrs; + register struct rpc_msg *rmsg; +{ + if ( + xdr_u_long(xdrs, &(rmsg->rm_xid)) && + xdr_enum(xdrs, (enum_t *)&(rmsg->rm_direction)) && + (rmsg->rm_direction == REPLY) ) + return (xdr_union(xdrs, (enum_t *)&(rmsg->rm_reply.rp_stat), + (caddr_t)&(rmsg->rm_reply.ru), reply_dscrm, NULL_xdrproc_t)); + return (FALSE); +} + + +/* + * Serializes the "static part" of a call message header. + * The fields include: rm_xid, rm_direction, rpcvers, prog, and vers. + * The rm_xid is not really static, but the user can easily munge on the fly. + */ +bool_t +xdr_callhdr(xdrs, cmsg) + register XDR *xdrs; + register struct rpc_msg *cmsg; +{ + + cmsg->rm_direction = CALL; + cmsg->rm_call.cb_rpcvers = RPC_MSG_VERSION; + if ( + (xdrs->x_op == XDR_ENCODE) && + xdr_u_long(xdrs, &(cmsg->rm_xid)) && + xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) && + xdr_u_long(xdrs, &(cmsg->rm_call.cb_rpcvers)) && + xdr_u_long(xdrs, &(cmsg->rm_call.cb_prog)) ) + return (xdr_u_long(xdrs, &(cmsg->rm_call.cb_vers))); + return (FALSE); +} + +/* ************************** Client utility routine ************* */ + +static void +accepted(acpt_stat, error) + register enum accept_stat acpt_stat; + register struct rpc_err *error; +{ + + switch (acpt_stat) { + + case PROG_UNAVAIL: + error->re_status = RPC_PROGUNAVAIL; + return; + + case PROG_MISMATCH: + error->re_status = RPC_PROGVERSMISMATCH; + return; + + case PROC_UNAVAIL: + error->re_status = RPC_PROCUNAVAIL; + return; + + case GARBAGE_ARGS: + error->re_status = RPC_CANTDECODEARGS; + return; + + case SYSTEM_ERR: + error->re_status = RPC_SYSTEMERROR; + return; + + case SUCCESS: + error->re_status = RPC_SUCCESS; + return; + } + /* something's wrong, but we don't know what ... */ + error->re_status = RPC_FAILED; + error->re_lb.s1 = (long)MSG_ACCEPTED; + error->re_lb.s2 = (long)acpt_stat; +} + +static void +rejected(rjct_stat, error) + register enum reject_stat rjct_stat; + register struct rpc_err *error; +{ + + switch (rjct_stat) { + + case RPC_VERSMISMATCH: + error->re_status = RPC_VERSMISMATCH; + return; + + case AUTH_ERROR: + error->re_status = RPC_AUTHERROR; + return; + } + /* something's wrong, but we don't know what ... */ + error->re_status = RPC_FAILED; + error->re_lb.s1 = (long)MSG_DENIED; + error->re_lb.s2 = (long)rjct_stat; +} + +/* + * given a reply message, fills in the error + */ +void +_seterr_reply(msg, error) + register struct rpc_msg *msg; + register struct rpc_err *error; +{ + + /* optimized for normal, SUCCESSful case */ + switch (msg->rm_reply.rp_stat) { + + case MSG_ACCEPTED: + if (msg->acpted_rply.ar_stat == SUCCESS) { + error->re_status = RPC_SUCCESS; + return; + }; + accepted(msg->acpted_rply.ar_stat, error); + break; + + case MSG_DENIED: + rejected(msg->rjcted_rply.rj_stat, error); + break; + + default: + error->re_status = RPC_FAILED; + error->re_lb.s1 = (long)(msg->rm_reply.rp_stat); + break; + } + switch (error->re_status) { + + case RPC_VERSMISMATCH: + error->re_vers.low = msg->rjcted_rply.rj_vers.low; + error->re_vers.high = msg->rjcted_rply.rj_vers.high; + break; + + case RPC_AUTHERROR: + error->re_why = msg->rjcted_rply.rj_why; + break; + + case RPC_PROGVERSMISMATCH: + error->re_vers.low = msg->acpted_rply.ar_vers.low; + error->re_vers.high = msg->acpted_rply.ar_vers.high; + break; + } +} diff --git a/lib/libc/rpc/rstat.1 b/lib/libc/rpc/rstat.1 new file mode 100644 index 0000000..61d9999 --- /dev/null +++ b/lib/libc/rpc/rstat.1 @@ -0,0 +1,57 @@ +.\" @(#)rstat.1 2.1 88/08/03 4.0 RPCSRC +.TH RSTAT 1 "3 August 1988" +.SH NAME +rstat \- remote status display +.SH SYNOPSIS +.B rstat +.B host +.SH DESCRIPTION +.LP +.B rstat +displays a summary of the current system status of a particular +.BR host . +The output shows the current time of day, how long the system has +been up, +and the load averages. +The load average numbers give the number of jobs in the run queue +averaged over 1, 5 and 15 minutes. +.PP +The +.B rstat_svc(8c) +daemon must be running on the remote host for this command to +work. +.B rstat +uses an RPC protocol defined in /usr/include/rpcsvc/rstat.x. +.SH EXAMPLE +.RS +.ft B +.nf +example% rstat otherhost +7:36am up 6 days, 16:45, load average: 0.20, 0.23, 0.18 +example% +.ft R +.fi +.RE +.SH DIAGNOSTICS +.LP +rstat: RPC: Program not registered +.IP +The +.B rstat_svc +daemon has not been started on the remote host. +.LP +rstat: RPC: Timed out +.IP +A communication error occurred. Either the network is +excessively congested, or the +.B rstat_svc +daemon has terminated on the remote host. +.LP +rstat: RPC: Port mapper failure - RPC: Timed out +.IP +The remote host is not running the portmapper (see +.BR portmap(8c) ), +and cannot accomodate any RPC-based services. The host may be down. +.SH "SEE ALSO" +.BR portmap (8c), +.BR rstat_svc (8c) diff --git a/lib/libc/rpc/rstat_svc.8 b/lib/libc/rpc/rstat_svc.8 new file mode 100644 index 0000000..a10b71d --- /dev/null +++ b/lib/libc/rpc/rstat_svc.8 @@ -0,0 +1,21 @@ +.\" @(#)rstat_svc.8c 2.2 88/08/03 4.0 RPCSRC; from 1.10 87/09/09 SMI +.TH RSTAT_SVC 8C "24 November 1987" +.SH NAME +rstat_svc \- kernel statistics server +.SH SYNOPSIS +.B /etc/rstat_svc +.SH DESCRIPTION +.LP +.B rstat_svc +is a server which returns performance statistics +obtained from the kernel. +These statistics are graphically displayed by the Sun Microsystems program, +.BR perfmeter (1). +The +.B rstat_svc +daemon is normally invoked at boot time through /etc/rc.local. +.PP +.B rstat_svc +uses an RPC protocol defined in /usr/include/rpcsvc/rstat.x. +.SH "SEE ALSO" +.BR rstat (1), diff --git a/lib/libc/rpc/svc.c b/lib/libc/rpc/svc.c new file mode 100644 index 0000000..55ad25e --- /dev/null +++ b/lib/libc/rpc/svc.c @@ -0,0 +1,481 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)svc.c 1.44 88/02/08 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)svc.c 2.4 88/08/11 4.0 RPCSRC";*/ +static char *rcsid = "$Id: svc.c,v 1.1 1993/10/27 05:40:54 paul Exp $"; +#endif + +/* + * svc.c, Server-side remote procedure call interface. + * + * There are two sets of procedures here. The xprt routines are + * for handling transport handles. The svc routines handle the + * list of service routines. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <sys/errno.h> +#include <rpc/rpc.h> +#include <rpc/pmap_clnt.h> + +extern int errno; + +#ifdef FD_SETSIZE +static SVCXPRT **xports; +#else +#define NOFILE 32 + +static SVCXPRT *xports[NOFILE]; +#endif /* def FD_SETSIZE */ + +#define NULL_SVC ((struct svc_callout *)0) +#define RQCRED_SIZE 400 /* this size is excessive */ + +/* + * The services list + * Each entry represents a set of procedures (an rpc program). + * The dispatch routine takes request structs and runs the + * apropriate procedure. + */ +static struct svc_callout { + struct svc_callout *sc_next; + u_long sc_prog; + u_long sc_vers; + void (*sc_dispatch)(); +} *svc_head; + +static struct svc_callout *svc_find(); + +/* *************** SVCXPRT related stuff **************** */ + +/* + * Activate a transport handle. + */ +void +xprt_register(xprt) + SVCXPRT *xprt; +{ + register int sock = xprt->xp_sock; + +#ifdef FD_SETSIZE + if (xports == NULL) { + xports = (SVCXPRT **) + mem_alloc(FD_SETSIZE * sizeof(SVCXPRT *)); + } + if (sock < _rpc_dtablesize()) { + xports[sock] = xprt; + FD_SET(sock, &svc_fdset); + } +#else + if (sock < NOFILE) { + xports[sock] = xprt; + svc_fds |= (1 << sock); + } +#endif /* def FD_SETSIZE */ + +} + +/* + * De-activate a transport handle. + */ +void +xprt_unregister(xprt) + SVCXPRT *xprt; +{ + register int sock = xprt->xp_sock; + +#ifdef FD_SETSIZE + if ((sock < _rpc_dtablesize()) && (xports[sock] == xprt)) { + xports[sock] = (SVCXPRT *)0; + FD_CLR(sock, &svc_fdset); + } +#else + if ((sock < NOFILE) && (xports[sock] == xprt)) { + xports[sock] = (SVCXPRT *)0; + svc_fds &= ~(1 << sock); + } +#endif /* def FD_SETSIZE */ +} + + +/* ********************** CALLOUT list related stuff ************* */ + +/* + * Add a service program to the callout list. + * The dispatch routine will be called when a rpc request for this + * program number comes in. + */ +bool_t +svc_register(xprt, prog, vers, dispatch, protocol) + SVCXPRT *xprt; + u_long prog; + u_long vers; + void (*dispatch)(); + int protocol; +{ + struct svc_callout *prev; + register struct svc_callout *s; + + if ((s = svc_find(prog, vers, &prev)) != NULL_SVC) { + if (s->sc_dispatch == dispatch) + goto pmap_it; /* he is registering another xptr */ + return (FALSE); + } + s = (struct svc_callout *)mem_alloc(sizeof(struct svc_callout)); + if (s == (struct svc_callout *)0) { + return (FALSE); + } + s->sc_prog = prog; + s->sc_vers = vers; + s->sc_dispatch = dispatch; + s->sc_next = svc_head; + svc_head = s; +pmap_it: + /* now register the information with the local binder service */ + if (protocol) { + return (pmap_set(prog, vers, protocol, xprt->xp_port)); + } + return (TRUE); +} + +/* + * Remove a service program from the callout list. + */ +void +svc_unregister(prog, vers) + u_long prog; + u_long vers; +{ + struct svc_callout *prev; + register struct svc_callout *s; + + if ((s = svc_find(prog, vers, &prev)) == NULL_SVC) + return; + if (prev == NULL_SVC) { + svc_head = s->sc_next; + } else { + prev->sc_next = s->sc_next; + } + s->sc_next = NULL_SVC; + mem_free((char *) s, (u_int) sizeof(struct svc_callout)); + /* now unregister the information with the local binder service */ + (void)pmap_unset(prog, vers); +} + +/* + * Search the callout list for a program number, return the callout + * struct. + */ +static struct svc_callout * +svc_find(prog, vers, prev) + u_long prog; + u_long vers; + struct svc_callout **prev; +{ + register struct svc_callout *s, *p; + + p = NULL_SVC; + for (s = svc_head; s != NULL_SVC; s = s->sc_next) { + if ((s->sc_prog == prog) && (s->sc_vers == vers)) + goto done; + p = s; + } +done: + *prev = p; + return (s); +} + +/* ******************* REPLY GENERATION ROUTINES ************ */ + +/* + * Send a reply to an rpc request + */ +bool_t +svc_sendreply(xprt, xdr_results, xdr_location) + register SVCXPRT *xprt; + xdrproc_t xdr_results; + caddr_t xdr_location; +{ + struct rpc_msg rply; + + rply.rm_direction = REPLY; + rply.rm_reply.rp_stat = MSG_ACCEPTED; + rply.acpted_rply.ar_verf = xprt->xp_verf; + rply.acpted_rply.ar_stat = SUCCESS; + rply.acpted_rply.ar_results.where = xdr_location; + rply.acpted_rply.ar_results.proc = xdr_results; + return (SVC_REPLY(xprt, &rply)); +} + +/* + * No procedure error reply + */ +void +svcerr_noproc(xprt) + register SVCXPRT *xprt; +{ + struct rpc_msg rply; + + rply.rm_direction = REPLY; + rply.rm_reply.rp_stat = MSG_ACCEPTED; + rply.acpted_rply.ar_verf = xprt->xp_verf; + rply.acpted_rply.ar_stat = PROC_UNAVAIL; + SVC_REPLY(xprt, &rply); +} + +/* + * Can't decode args error reply + */ +void +svcerr_decode(xprt) + register SVCXPRT *xprt; +{ + struct rpc_msg rply; + + rply.rm_direction = REPLY; + rply.rm_reply.rp_stat = MSG_ACCEPTED; + rply.acpted_rply.ar_verf = xprt->xp_verf; + rply.acpted_rply.ar_stat = GARBAGE_ARGS; + SVC_REPLY(xprt, &rply); +} + +/* + * Some system error + */ +void +svcerr_systemerr(xprt) + register SVCXPRT *xprt; +{ + struct rpc_msg rply; + + rply.rm_direction = REPLY; + rply.rm_reply.rp_stat = MSG_ACCEPTED; + rply.acpted_rply.ar_verf = xprt->xp_verf; + rply.acpted_rply.ar_stat = SYSTEM_ERR; + SVC_REPLY(xprt, &rply); +} + +/* + * Authentication error reply + */ +void +svcerr_auth(xprt, why) + SVCXPRT *xprt; + enum auth_stat why; +{ + struct rpc_msg rply; + + rply.rm_direction = REPLY; + rply.rm_reply.rp_stat = MSG_DENIED; + rply.rjcted_rply.rj_stat = AUTH_ERROR; + rply.rjcted_rply.rj_why = why; + SVC_REPLY(xprt, &rply); +} + +/* + * Auth too weak error reply + */ +void +svcerr_weakauth(xprt) + SVCXPRT *xprt; +{ + + svcerr_auth(xprt, AUTH_TOOWEAK); +} + +/* + * Program unavailable error reply + */ +void +svcerr_noprog(xprt) + register SVCXPRT *xprt; +{ + struct rpc_msg rply; + + rply.rm_direction = REPLY; + rply.rm_reply.rp_stat = MSG_ACCEPTED; + rply.acpted_rply.ar_verf = xprt->xp_verf; + rply.acpted_rply.ar_stat = PROG_UNAVAIL; + SVC_REPLY(xprt, &rply); +} + +/* + * Program version mismatch error reply + */ +void +svcerr_progvers(xprt, low_vers, high_vers) + register SVCXPRT *xprt; + u_long low_vers; + u_long high_vers; +{ + struct rpc_msg rply; + + rply.rm_direction = REPLY; + rply.rm_reply.rp_stat = MSG_ACCEPTED; + rply.acpted_rply.ar_verf = xprt->xp_verf; + rply.acpted_rply.ar_stat = PROG_MISMATCH; + rply.acpted_rply.ar_vers.low = low_vers; + rply.acpted_rply.ar_vers.high = high_vers; + SVC_REPLY(xprt, &rply); +} + +/* ******************* SERVER INPUT STUFF ******************* */ + +/* + * Get server side input from some transport. + * + * Statement of authentication parameters management: + * This function owns and manages all authentication parameters, specifically + * the "raw" parameters (msg.rm_call.cb_cred and msg.rm_call.cb_verf) and + * the "cooked" credentials (rqst->rq_clntcred). + * However, this function does not know the structure of the cooked + * credentials, so it make the following assumptions: + * a) the structure is contiguous (no pointers), and + * b) the cred structure size does not exceed RQCRED_SIZE bytes. + * In all events, all three parameters are freed upon exit from this routine. + * The storage is trivially management on the call stack in user land, but + * is mallocated in kernel land. + */ + +void +svc_getreq(rdfds) + int rdfds; +{ +#ifdef FD_SETSIZE + fd_set readfds; + + FD_ZERO(&readfds); + readfds.fds_bits[0] = rdfds; + svc_getreqset(&readfds); +#else + int readfds = rdfds & svc_fds; + + svc_getreqset(&readfds); +#endif /* def FD_SETSIZE */ +} + +void +svc_getreqset(readfds) +#ifdef FD_SETSIZE + fd_set *readfds; +{ +#else + int *readfds; +{ + int readfds_local = *readfds; +#endif /* def FD_SETSIZE */ + enum xprt_stat stat; + struct rpc_msg msg; + int prog_found; + u_long low_vers; + u_long high_vers; + struct svc_req r; + register SVCXPRT *xprt; + register u_long mask; + register int bit; + register u_long *maskp; + register int setsize; + register int sock; + char cred_area[2*MAX_AUTH_BYTES + RQCRED_SIZE]; + msg.rm_call.cb_cred.oa_base = cred_area; + msg.rm_call.cb_verf.oa_base = &(cred_area[MAX_AUTH_BYTES]); + r.rq_clntcred = &(cred_area[2*MAX_AUTH_BYTES]); + + +#ifdef FD_SETSIZE + setsize = _rpc_dtablesize(); + maskp = (u_long *)readfds->fds_bits; + for (sock = 0; sock < setsize; sock += NFDBITS) { + for (mask = *maskp++; bit = ffs(mask); mask ^= (1 << (bit - 1))) { + /* sock has input waiting */ + xprt = xports[sock + bit - 1]; +#else + for (sock = 0; readfds_local != 0; sock++, readfds_local >>= 1) { + if ((readfds_local & 1) != 0) { + /* sock has input waiting */ + xprt = xports[sock]; +#endif /* def FD_SETSIZE */ + /* now receive msgs from xprtprt (support batch calls) */ + do { + if (SVC_RECV(xprt, &msg)) { + + /* now find the exported program and call it */ + register struct svc_callout *s; + enum auth_stat why; + + r.rq_xprt = xprt; + r.rq_prog = msg.rm_call.cb_prog; + r.rq_vers = msg.rm_call.cb_vers; + r.rq_proc = msg.rm_call.cb_proc; + r.rq_cred = msg.rm_call.cb_cred; + /* first authenticate the message */ + if ((why= _authenticate(&r, &msg)) != AUTH_OK) { + svcerr_auth(xprt, why); + goto call_done; + } + /* now match message with a registered service*/ + prog_found = FALSE; + low_vers = 0 - 1; + high_vers = 0; + for (s = svc_head; s != NULL_SVC; s = s->sc_next) { + if (s->sc_prog == r.rq_prog) { + if (s->sc_vers == r.rq_vers) { + (*s->sc_dispatch)(&r, xprt); + goto call_done; + } /* found correct version */ + prog_found = TRUE; + if (s->sc_vers < low_vers) + low_vers = s->sc_vers; + if (s->sc_vers > high_vers) + high_vers = s->sc_vers; + } /* found correct program */ + } + /* + * if we got here, the program or version + * is not served ... + */ + if (prog_found) + svcerr_progvers(xprt, + low_vers, high_vers); + else + svcerr_noprog(xprt); + /* Fall through to ... */ + } + call_done: + if ((stat = SVC_STAT(xprt)) == XPRT_DIED){ + SVC_DESTROY(xprt); + break; + } + } while (stat == XPRT_MOREREQS); + } + } +} diff --git a/lib/libc/rpc/svc_auth.c b/lib/libc/rpc/svc_auth.c new file mode 100644 index 0000000..0a9f276 --- /dev/null +++ b/lib/libc/rpc/svc_auth.c @@ -0,0 +1,117 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)svc_auth.c 1.19 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)svc_auth.c 2.1 88/08/07 4.0 RPCSRC";*/ +static char *rcsid = "$Id: svc_auth.c,v 1.1 1993/10/27 05:40:56 paul Exp $"; +#endif + +/* + * svc_auth_nodes.c, Server-side rpc authenticator interface, + * *WITHOUT* DES authentication. + * + * 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); +} diff --git a/lib/libc/rpc/svc_auth_unix.c b/lib/libc/rpc/svc_auth_unix.c new file mode 100644 index 0000000..5cf825f --- /dev/null +++ b/lib/libc/rpc/svc_auth_unix.c @@ -0,0 +1,136 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)svc_auth_unix.c 1.28 88/02/08 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)svc_auth_unix.c 2.3 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: svc_auth_unix.c,v 1.1 1993/10/27 05:40:58 paul Exp $"; +#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 <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+1]; + 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); + if (str_len > MAX_MACHINE_NAME) { + stat = AUTH_BADCRED; + goto done; + } + 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); +} diff --git a/lib/libc/rpc/svc_raw.c b/lib/libc/rpc/svc_raw.c new file mode 100644 index 0000000..e34ea9e --- /dev/null +++ b/lib/libc/rpc/svc_raw.c @@ -0,0 +1,168 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)svc_raw.c 1.15 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)svc_raw.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: svc_raw.c,v 1.1 1993/10/27 05:40:59 paul Exp $"; +#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() +{ +} diff --git a/lib/libc/rpc/svc_run.c b/lib/libc/rpc/svc_run.c new file mode 100644 index 0000000..52fddf2 --- /dev/null +++ b/lib/libc/rpc/svc_run.c @@ -0,0 +1,73 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)svc_run.c 1.1 87/10/13 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)svc_run.c 2.1 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: svc_run.c,v 1.1 1993/10/27 05:41:00 paul Exp $"; +#endif + +/* + * 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); + } + } +} diff --git a/lib/libc/rpc/svc_simple.c b/lib/libc/rpc/svc_simple.c new file mode 100644 index 0000000..eacf859 --- /dev/null +++ b/lib/libc/rpc/svc_simple.c @@ -0,0 +1,145 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)svc_simple.c 1.18 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)svc_simple.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: svc_simple.c,v 1.1 1993/10/27 05:41:01 paul Exp $"; +#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 <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); +} + diff --git a/lib/libc/rpc/svc_tcp.c b/lib/libc/rpc/svc_tcp.c new file mode 100644 index 0000000..9d19504 --- /dev/null +++ b/lib/libc/rpc/svc_tcp.c @@ -0,0 +1,421 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)svc_tcp.c 1.21 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)svc_tcp.c 2.2 88/08/01 4.0 RPCSRC";*/ +static char *rcsid = "$Id: svc_tcp.c,v 1.1 1993/10/27 05:41:02 paul Exp $"; +#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 <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); +} diff --git a/lib/libc/rpc/svc_udp.c b/lib/libc/rpc/svc_udp.c new file mode 100644 index 0000000..d7c7bb2 --- /dev/null +++ b/lib/libc/rpc/svc_udp.c @@ -0,0 +1,480 @@ +/* + * 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(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)svc_udp.c 1.24 87/08/11 Copyr 1984 Sun Micro";*/ +/*static char *sccsid = "from: @(#)svc_udp.c 2.2 88/07/29 4.0 RPCSRC";*/ +static char *rcsid = "$Id: svc_udp.c,v 1.1 1993/10/27 05:41:03 paul Exp $"; +#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 <stdlib.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; + static int cache_get(); + + 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, xprt->xp_addrlen); + return (TRUE); + } + } + 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; + static void cache_set(); + + 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 void +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); +} + |