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Diffstat (limited to 'c/src/librpc/src/svc.c')
| -rw-r--r-- | c/src/librpc/src/svc.c | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/c/src/librpc/src/svc.c b/c/src/librpc/src/svc.c new file mode 100644 index 0000000000..c4ccb46aa5 --- /dev/null +++ b/c/src/librpc/src/svc.c @@ -0,0 +1,259 @@ +/* @(#)svc.c 2.4 88/08/11 4.0 RPCSRC; from 1.44 88/02/08 SMI */ +/* + * Sun RPC is a product of Sun Microsystems, Inc. and is provided for + * unrestricted use provided that this legend is included on all tape + * media and as a part of the software program in whole or part. Users + * may copy or modify Sun RPC without charge, but are not authorized + * to license or distribute it to anyone else except as part of a product or + * program developed by the user. + * + * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE + * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. + * + * Sun RPC is provided with no support and without any obligation on the + * part of Sun Microsystems, Inc. to assist in its use, correction, + * modification or enhancement. + * + * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE + * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC + * OR ANY PART THEREOF. + * + * In no event will Sun Microsystems, Inc. be liable for any lost revenue + * or profits or other special, indirect and consequential damages, even if + * Sun has been advised of the possibility of such damages. + * + * Sun Microsystems, Inc. + * 2550 Garcia Avenue + * Mountain View, California 94043 + */ +#if !defined(lint) && defined(SCCSIDS) +static char sccsid[] = "@(#)svc.c 1.41 87/10/13 Copyr 1984 Sun Micro"; +#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 <rpc/rpc.h> +#include <stdio.h> +#include <stdlib.h> + +#define RQCRED_SIZE 400 /* this size is excessive */ + +/* ******************* 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); +} + + void +svc_processrequest(xprt, prog, vers, dispatch) + SVCXPRT *xprt; + u_long prog; + u_long vers; + void (*dispatch)(); +{ + struct rpc_msg msg; + int prog_found = FALSE; + u_long low_vers = 0; /* dummy init */ + u_long high_vers = 0; /* dummy init */ + struct svc_req r; + /*static char cred_area[2*MAX_AUTH_BYTES + RQCRED_SIZE];*/ + char *cred_area; + + cred_area = (char *)malloc(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]); + + 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); + free(cred_area); + return; + } + + /* now match message with a registered service*/ + prog_found = FALSE; + low_vers = 0 - 1; + high_vers = 0; + if (prog == r.rq_prog) { + if (vers == r.rq_vers) { + (*dispatch)(&r, xprt); + free(cred_area); + return; + } /* found correct version */ + prog_found = TRUE; + if (vers < low_vers) + low_vers = vers; + if (vers > high_vers) + high_vers = 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); + } + + free(cred_area); + +} + +/* stubs for solaris rpcgen */ +/*int _rpcsvccount; +int _rpcsvcstate; +int _SERVED; +*/ |