yp_server.c revision 20818
112891Swpaul/* 212891Swpaul * Copyright (c) 1995 312891Swpaul * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 412891Swpaul * 512891Swpaul * Redistribution and use in source and binary forms, with or without 612891Swpaul * modification, are permitted provided that the following conditions 712891Swpaul * are met: 812891Swpaul * 1. Redistributions of source code must retain the above copyright 912891Swpaul * notice, this list of conditions and the following disclaimer. 1012891Swpaul * 2. Redistributions in binary form must reproduce the above copyright 1112891Swpaul * notice, this list of conditions and the following disclaimer in the 1212891Swpaul * documentation and/or other materials provided with the distribution. 1312891Swpaul * 3. All advertising materials mentioning features or use of this software 1412891Swpaul * must display the following acknowledgement: 1512891Swpaul * This product includes software developed by Bill Paul. 1612891Swpaul * 4. Neither the name of the author nor the names of any co-contributors 1712891Swpaul * may be used to endorse or promote products derived from this software 1812891Swpaul * without specific prior written permission. 1912891Swpaul * 2012891Swpaul * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 2112891Swpaul * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2212891Swpaul * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2312891Swpaul * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 2412891Swpaul * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2512891Swpaul * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2612891Swpaul * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2712891Swpaul * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2812891Swpaul * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2912891Swpaul * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3012891Swpaul * SUCH DAMAGE. 3112891Swpaul * 3212891Swpaul */ 3312891Swpaul 3420818Swpaul#include "yp.h" 3512891Swpaul#include "yp_extern.h" 3612891Swpaul#include <stdlib.h> 3712891Swpaul#include <dirent.h> 3812891Swpaul#include <sys/stat.h> 3912891Swpaul#include <sys/param.h> 4012891Swpaul#include <errno.h> 4112891Swpaul#include <sys/types.h> 4212891Swpaul#include <sys/socket.h> 4312891Swpaul#include <netinet/in.h> 4412891Swpaul#include <arpa/inet.h> 4512997Swpaul#include <rpc/rpc.h> 4612891Swpaul 4712891Swpaul#ifndef lint 4820818Swpaulstatic const char rcsid[] = "$Id: yp_server.c,v 1.2 1996/12/22 06:57:55 wpaul Exp $"; 4912891Swpaul#endif /* not lint */ 5012891Swpaul 5112891Swpaulint forked = 0; 5212891Swpaulint children = 0; 5319161Swpaulstatic char *master_string = "YP_MASTER_NAME"; 5419161Swpaulstatic char *order_string = "YP_LAST_MODIFIED"; 5519161Swpaulstatic int master_sz = sizeof("YP_MASTER_NAME") - 1; 5619161Swpaulstatic int order_sz = sizeof("YP_LAST_MODIFIED") - 1; 5712891Swpaul 5814262Swpaul/* 5914262Swpaul * NIS v2 support. This is where most of the action happens. 6014262Swpaul */ 6114262Swpaul 6212891Swpaulvoid * 6312891Swpaulypproc_null_2_svc(void *argp, struct svc_req *rqstp) 6412891Swpaul{ 6512891Swpaul static char * result; 6612891Swpaul static char rval = 0; 6712891Swpaul 6819161Swpaul#ifdef DB_CACHE 6919161Swpaul if (yp_access(NULL, NULL, (struct svc_req *)rqstp)) 7019161Swpaul#else 7112891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) 7219161Swpaul#endif 7312891Swpaul return(NULL); 7412891Swpaul 7512891Swpaul result = &rval; 7612891Swpaul 7712891Swpaul return((void *) &result); 7812891Swpaul} 7912891Swpaul 8012891Swpaulbool_t * 8112891Swpaulypproc_domain_2_svc(domainname *argp, struct svc_req *rqstp) 8212891Swpaul{ 8312891Swpaul static bool_t result; 8412891Swpaul 8519161Swpaul#ifdef DB_CACHE 8619161Swpaul if (yp_access(NULL, NULL, (struct svc_req *)rqstp)) { 8719161Swpaul#else 8812891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) { 8919161Swpaul#endif 9012891Swpaul result = FALSE; 9112891Swpaul return (&result); 9212891Swpaul } 9312891Swpaul 9412891Swpaul if (argp == NULL || yp_validdomain(*argp)) 9512891Swpaul result = FALSE; 9612891Swpaul else 9712891Swpaul result = TRUE; 9812891Swpaul 9912891Swpaul return (&result); 10012891Swpaul} 10112891Swpaul 10212891Swpaulbool_t * 10312891Swpaulypproc_domain_nonack_2_svc(domainname *argp, struct svc_req *rqstp) 10412891Swpaul{ 10512891Swpaul static bool_t result; 10612891Swpaul 10719161Swpaul#ifdef DB_CACHE 10819161Swpaul if (yp_access(NULL, NULL, (struct svc_req *)rqstp)) 10919161Swpaul#else 11012891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) 11119161Swpaul#endif 11212891Swpaul return (NULL); 11312891Swpaul 11412891Swpaul if (argp == NULL || yp_validdomain(*argp)) 11512891Swpaul return (NULL); 11612891Swpaul else 11712891Swpaul result = TRUE; 11812891Swpaul 11912891Swpaul return (&result); 12012891Swpaul} 12112891Swpaul 12212891Swpaulypresp_val * 12312891Swpaulypproc_match_2_svc(ypreq_key *argp, struct svc_req *rqstp) 12412891Swpaul{ 12512891Swpaul static ypresp_val result; 12612891Swpaul 12714304Swpaul result.val.valdat_val = ""; 12814304Swpaul result.val.valdat_len = 0; 12919161Swpaul 13019161Swpaul#ifdef DB_CACHE 13119161Swpaul if (yp_access(argp->map, argp->domain, (struct svc_req *)rqstp)) { 13219161Swpaul#else 13312891Swpaul if (yp_access(argp->map, (struct svc_req *)rqstp)) { 13419161Swpaul#endif 13512891Swpaul result.stat = YP_YPERR; 13612891Swpaul return (&result); 13712891Swpaul } 13812891Swpaul 13912891Swpaul if (argp->domain == NULL || argp->map == NULL) { 14012891Swpaul result.stat = YP_BADARGS; 14112891Swpaul return (&result); 14212891Swpaul } 14312891Swpaul 14420818Swpaul if (yp_select_map(argp->map, argp->domain, &argp->key, 1) != YP_TRUE) { 14520818Swpaul result.stat = yp_errno; 14620818Swpaul return(&result); 14712891Swpaul } 14812891Swpaul 14920818Swpaul result.stat = yp_getbykey(&argp->key, &result.val); 15020818Swpaul 15112891Swpaul /* 15212891Swpaul * Do DNS lookups for hosts maps if database lookup failed. 15312891Swpaul */ 15412891Swpaul 15519161Swpaul#ifdef DB_CACHE 15619161Swpaul if (result.stat != YP_TRUE && 15719161Swpaul (yp_testflag(argp->map, argp->domain, YP_INTERDOMAIN) || 15819161Swpaul (strstr(argp->map, "hosts") && do_dns))) { 15919161Swpaul#else 16012891Swpaul if (do_dns && result.stat != YP_TRUE && strstr(argp->map, "hosts")) { 16119161Swpaul#endif 16220818Swpaul 16320818Swpaul /* NUL terminate! NUL terminate!! NUL TERMINATE!!! */ 16420818Swpaul argp->key.keydat_val[argp->key.keydat_len] = '\0'; 16512891Swpaul 16612891Swpaul if (debug) 16712891Swpaul yp_error("Doing DNS lookup of %.*s", 16812891Swpaul argp->key.keydat_len, 16912891Swpaul argp->key.keydat_val); 17012891Swpaul 17112891Swpaul if (!strcmp(argp->map, "hosts.byname")) 17220818Swpaul result.stat = yp_async_lookup_name(rqstp->rq_xprt, 17320818Swpaul (char *)argp->key.keydat_val); 17412891Swpaul else if (!strcmp(argp->map, "hosts.byaddr")) 17520818Swpaul result.stat = yp_async_lookup_addr(rqstp->rq_xprt, 17620818Swpaul (char *)argp->key.keydat_val); 17712891Swpaul 17820818Swpaul if (result.stat == YP_TRUE) 17920818Swpaul return(NULL); 18012891Swpaul } 18112891Swpaul 18212891Swpaul return (&result); 18312891Swpaul} 18412891Swpaul 18512891Swpaulypresp_key_val * 18612891Swpaulypproc_first_2_svc(ypreq_nokey *argp, struct svc_req *rqstp) 18712891Swpaul{ 18812891Swpaul static ypresp_key_val result; 18912891Swpaul 19014304Swpaul result.val.valdat_val = result.key.keydat_val = ""; 19114304Swpaul result.val.valdat_len = result.key.keydat_len = 0; 19219161Swpaul 19319161Swpaul#ifdef DB_CACHE 19419161Swpaul if (yp_access(argp->map, argp->domain, (struct svc_req *)rqstp)) { 19519161Swpaul#else 19612891Swpaul if (yp_access(argp->map, (struct svc_req *)rqstp)) { 19719161Swpaul#endif 19812891Swpaul result.stat = YP_YPERR; 19912891Swpaul return (&result); 20012891Swpaul } 20112891Swpaul 20212891Swpaul if (argp->domain == NULL) { 20312891Swpaul result.stat = YP_BADARGS; 20412891Swpaul return (&result); 20512891Swpaul } 20612891Swpaul 20720818Swpaul if (yp_select_map(argp->map, argp->domain, &result.key, 0) != YP_TRUE) { 20812891Swpaul result.stat = yp_errno; 20912891Swpaul return(&result); 21012891Swpaul } 21112891Swpaul 21220818Swpaul result.stat = yp_firstbykey(&result.key, &result.val); 21312891Swpaul 21412891Swpaul return (&result); 21512891Swpaul} 21612891Swpaul 21712891Swpaulypresp_key_val * 21812891Swpaulypproc_next_2_svc(ypreq_key *argp, struct svc_req *rqstp) 21912891Swpaul{ 22012891Swpaul static ypresp_key_val result; 22112891Swpaul 22214304Swpaul result.val.valdat_val = result.key.keydat_val = ""; 22314304Swpaul result.val.valdat_len = result.key.keydat_len = 0; 22415426Swpaul 22519161Swpaul#ifdef DB_CACHE 22619161Swpaul if (yp_access(argp->map, argp->domain, (struct svc_req *)rqstp)) { 22719161Swpaul#else 22812891Swpaul if (yp_access(argp->map, (struct svc_req *)rqstp)) { 22919161Swpaul#endif 23012891Swpaul result.stat = YP_YPERR; 23112891Swpaul return (&result); 23212891Swpaul } 23312891Swpaul 23412891Swpaul if (argp->domain == NULL || argp->map == NULL) { 23512891Swpaul result.stat = YP_BADARGS; 23612891Swpaul return (&result); 23712891Swpaul } 23812891Swpaul 23920818Swpaul if (yp_select_map(argp->map, argp->domain, &argp->key, 0) != YP_TRUE) { 24012891Swpaul result.stat = yp_errno; 24112891Swpaul return(&result); 24212891Swpaul } 24312891Swpaul 24420818Swpaul result.key.keydat_len = argp->key.keydat_len; 24520818Swpaul result.key.keydat_val = argp->key.keydat_val; 24612891Swpaul 24720818Swpaul result.stat = yp_nextbykey(&result.key, &result.val); 24820818Swpaul 24912891Swpaul return (&result); 25012891Swpaul} 25112891Swpaul 25212997Swpaulstatic void ypxfr_callback(rval,addr,transid,prognum,port) 25312997Swpaul ypxfrstat rval; 25412997Swpaul struct sockaddr_in *addr; 25512997Swpaul unsigned int transid; 25612997Swpaul unsigned int prognum; 25712997Swpaul unsigned long port; 25812997Swpaul{ 25912997Swpaul CLIENT *clnt; 26012997Swpaul int sock = RPC_ANYSOCK; 26112997Swpaul struct timeval timeout; 26212997Swpaul yppushresp_xfr ypxfr_resp; 26313375Swpaul struct rpc_err err; 26412997Swpaul 26513375Swpaul timeout.tv_sec = 5; 26612997Swpaul timeout.tv_usec = 0; 26712997Swpaul addr->sin_port = htons(port); 26812997Swpaul 26919131Swpaul if ((clnt = clntudp_create(addr,prognum,1,timeout,&sock)) == NULL) { 27019131Swpaul yp_error("%s: %s", inet_ntoa(addr->sin_addr), 27119161Swpaul clnt_spcreateerror("failed to establish callback handle")); 27219131Swpaul return; 27319131Swpaul } 27412997Swpaul 27512997Swpaul ypxfr_resp.status = rval; 27612997Swpaul ypxfr_resp.transid = transid; 27712997Swpaul 27813375Swpaul /* Turn the timeout off -- we don't want to block. */ 27913375Swpaul timeout.tv_sec = 0; 28013375Swpaul if (clnt_control(clnt, CLSET_TIMEOUT, (char *)&timeout) == FALSE) 28113375Swpaul yp_error("failed to set timeout on ypproc_xfr callback"); 28212997Swpaul 28313375Swpaul if (yppushproc_xfrresp_1(&ypxfr_resp, clnt) == NULL) { 28413375Swpaul clnt_geterr(clnt, &err); 28513375Swpaul if (err.re_status != RPC_SUCCESS && 28613375Swpaul err.re_status != RPC_TIMEDOUT) 28713375Swpaul yp_error("%s", clnt_sperror(clnt, 28813375Swpaul "ypxfr callback failed")); 28913375Swpaul } 29013375Swpaul 29112997Swpaul clnt_destroy(clnt); 29212997Swpaul return; 29312997Swpaul} 29412997Swpaul 29515426Swpaul#define YPXFR_RETURN(CODE) \ 29615426Swpaul /* Order is important: send regular RPC reply, then callback */ \ 29715426Swpaul result.xfrstat = CODE; \ 29815426Swpaul svc_sendreply(rqstp->rq_xprt, xdr_ypresp_xfr, (char *)&result); \ 29915426Swpaul ypxfr_callback(CODE,rqhost,argp->transid, \ 30015426Swpaul argp->prog,argp->port); \ 30115426Swpaul return(NULL); 30215426Swpaul 30312891Swpaulypresp_xfr * 30412891Swpaulypproc_xfr_2_svc(ypreq_xfr *argp, struct svc_req *rqstp) 30512891Swpaul{ 30612891Swpaul static ypresp_xfr result; 30712997Swpaul struct sockaddr_in *rqhost; 30812891Swpaul 30913375Swpaul result.transid = argp->transid; 31013375Swpaul rqhost = svc_getcaller(rqstp->rq_xprt); 31113375Swpaul 31219161Swpaul#ifdef DB_CACHE 31319161Swpaul if (yp_access(argp->map_parms.map, 31419161Swpaul argp->map_parms.domain, (struct svc_req *)rqstp)) { 31519161Swpaul#else 31612891Swpaul if (yp_access(argp->map_parms.map, (struct svc_req *)rqstp)) { 31719161Swpaul#endif 31815426Swpaul YPXFR_RETURN(YPXFR_REFUSED); 31912891Swpaul } 32012891Swpaul 32112891Swpaul if (argp->map_parms.domain == NULL) { 32215426Swpaul YPXFR_RETURN(YPXFR_BADARGS); 32312891Swpaul } 32412891Swpaul 32512891Swpaul if (yp_validdomain(argp->map_parms.domain)) { 32615426Swpaul YPXFR_RETURN(YPXFR_NODOM); 32712891Swpaul } 32812891Swpaul 32912891Swpaul switch(fork()) { 33012891Swpaul case 0: 33112891Swpaul { 33212891Swpaul char g[11], t[11], p[11]; 33312891Swpaul char ypxfr_command[MAXPATHLEN + 2]; 33412891Swpaul 33512891Swpaul sprintf (ypxfr_command, "%sypxfr", _PATH_LIBEXEC); 33612891Swpaul sprintf (t, "%u", argp->transid); 33712891Swpaul sprintf (g, "%u", argp->prog); 33812891Swpaul sprintf (p, "%u", argp->port); 33912997Swpaul if (debug) 34012997Swpaul close(0); close(1); close(2); 34112997Swpaul if (strcmp(yp_dir, _PATH_YP)) { 34214304Swpaul execl(ypxfr_command, "ypxfr", 34314304Swpaul "-d", argp->map_parms.domain, 34414304Swpaul "-h", argp->map_parms.peer, 34514304Swpaul "-p", yp_dir, "-C", t, 34614304Swpaul g, inet_ntoa(rqhost->sin_addr), 34714304Swpaul p, argp->map_parms.map, 34812997Swpaul NULL); 34912997Swpaul } else { 35014304Swpaul execl(ypxfr_command, "ypxfr", 35114304Swpaul "-d", argp->map_parms.domain, 35214304Swpaul "-h", argp->map_parms.peer, 35314304Swpaul "-C", t, 35414304Swpaul g, inet_ntoa(rqhost->sin_addr), 35514304Swpaul p, argp->map_parms.map, 35612997Swpaul NULL); 35712997Swpaul } 35812997Swpaul forked++; 35915426Swpaul yp_error("ypxfr execl(%s): %s", ypxfr_command, strerror(errno)); 36015426Swpaul YPXFR_RETURN(YPXFR_XFRERR); 36112997Swpaul break; 36212891Swpaul } 36312891Swpaul case -1: 36412891Swpaul yp_error("ypxfr fork(): %s", strerror(errno)); 36515426Swpaul YPXFR_RETURN(YPXFR_XFRERR); 36612891Swpaul break; 36712891Swpaul default: 36813375Swpaul result.xfrstat = YPXFR_SUCC; 36912997Swpaul children++; 37012997Swpaul forked = 0; 37112891Swpaul break; 37212891Swpaul } 37313375Swpaul 37413375Swpaul return (&result); 37512891Swpaul} 37615426Swpaul#undef YPXFR_RETURN 37712891Swpaul 37812891Swpaulvoid * 37912891Swpaulypproc_clear_2_svc(void *argp, struct svc_req *rqstp) 38012891Swpaul{ 38112891Swpaul static char * result; 38212891Swpaul static char rval = 0; 38312891Swpaul 38419161Swpaul#ifdef DB_CACHE 38519161Swpaul if (yp_access(NULL, NULL, (struct svc_req *)rqstp)) 38619161Swpaul#else 38712891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) 38819161Swpaul#endif 38912891Swpaul return (NULL); 39015426Swpaul#ifdef DB_CACHE 39115426Swpaul /* clear out the database cache */ 39215426Swpaul yp_flush_all(); 39315426Swpaul#endif 39414240Swpaul /* Re-read the securenets database for the hell of it. */ 39514240Swpaul load_securenets(); 39614240Swpaul 39712891Swpaul result = &rval; 39812891Swpaul return((void *) &result); 39912891Swpaul} 40012891Swpaul 40112891Swpaul/* 40212891Swpaul * For ypproc_all, we have to send a stream of ypresp_all structures 40312891Swpaul * via TCP, but the XDR filter generated from the yp.x protocol 40412891Swpaul * definition file only serializes one such structure. This means that 40512891Swpaul * to send the whole stream, you need a wrapper which feeds all the 40612891Swpaul * records into the underlying XDR routine until it hits an 'EOF.' 40712891Swpaul * But to use the wrapper, you have to violate the boundaries between 40812891Swpaul * RPC layers by calling svc_sendreply() directly from the ypproc_all 40912891Swpaul * service routine instead of letting the RPC dispatcher do it. 41012891Swpaul * 41112891Swpaul * Bleah. 41212891Swpaul */ 41312891Swpaul 41412891Swpaul/* 41520100Swpaul * Custom XDR routine for serialzing results of ypproc_all: keep 41620100Swpaul * reading from the database and spew until we run out of records 41720100Swpaul * or encounter an error. 41812891Swpaul */ 41912891Swpaulstatic bool_t 42012891Swpaulxdr_my_ypresp_all(register XDR *xdrs, ypresp_all *objp) 42112891Swpaul{ 42220100Swpaul while (1) { 42320100Swpaul /* Get a record. */ 42420100Swpaul if ((objp->ypresp_all_u.val.stat = 42520818Swpaul yp_nextbykey(&objp->ypresp_all_u.val.key, 42620818Swpaul &objp->ypresp_all_u.val.val)) == YP_TRUE) { 42720100Swpaul objp->more = TRUE; 42820100Swpaul } else { 42920100Swpaul objp->more = FALSE; 43020100Swpaul } 43120100Swpaul 43220100Swpaul /* Serialize. */ 43320100Swpaul if (!xdr_ypresp_all(xdrs, objp)) 43420100Swpaul return(FALSE); 43520100Swpaul if (objp->more == FALSE) 43620100Swpaul return(TRUE); 43720100Swpaul } 43812891Swpaul} 43912891Swpaul 44012891Swpaulypresp_all * 44112891Swpaulypproc_all_2_svc(ypreq_nokey *argp, struct svc_req *rqstp) 44212891Swpaul{ 44312891Swpaul static ypresp_all result; 44412891Swpaul 44512891Swpaul /* 44612891Swpaul * Set this here so that the client will be forced to make 44712891Swpaul * at least one attempt to read from us even if all we're 44812891Swpaul * doing is returning an error. 44912891Swpaul */ 45012891Swpaul result.more = TRUE; 45114304Swpaul result.ypresp_all_u.val.key.keydat_len = 0; 45214304Swpaul result.ypresp_all_u.val.key.keydat_val = ""; 45312891Swpaul 45419161Swpaul#ifdef DB_CACHE 45519161Swpaul if (yp_access(argp->map, argp->domain, (struct svc_req *)rqstp)) { 45619161Swpaul#else 45712891Swpaul if (yp_access(argp->map, (struct svc_req *)rqstp)) { 45819161Swpaul#endif 45912891Swpaul result.ypresp_all_u.val.stat = YP_YPERR; 46012891Swpaul return (&result); 46112891Swpaul } 46212891Swpaul 46312891Swpaul if (argp->domain == NULL || argp->map == NULL) { 46412891Swpaul result.ypresp_all_u.val.stat = YP_BADARGS; 46512891Swpaul return (&result); 46612891Swpaul } 46712891Swpaul 46820100Swpaul /* 46920100Swpaul * The ypproc_all procedure can take a while to complete. 47020100Swpaul * Best to handle it in a subprocess so the parent doesn't 47120100Swpaul * block. (Is there a better way to do this? Maybe with 47220100Swpaul * async socket I/O?) 47320100Swpaul */ 47420100Swpaul if (!debug && children < MAX_CHILDREN && fork()) { 47520100Swpaul children++; 47620100Swpaul forked = 0; 47720100Swpaul return (NULL); 47820100Swpaul } else { 47920100Swpaul forked++; 48020100Swpaul } 48120100Swpaul 48220818Swpaul if (yp_select_map(argp->map, argp->domain, 48320818Swpaul &result.ypresp_all_u.val.key, 0) != YP_TRUE) { 48412891Swpaul result.ypresp_all_u.val.stat = yp_errno; 48512891Swpaul return(&result); 48612891Swpaul } 48712891Swpaul 48812891Swpaul /* Kick off the actual data transfer. */ 48920100Swpaul svc_sendreply(rqstp->rq_xprt, xdr_my_ypresp_all, (char *)&result); 49020100Swpaul 49112891Swpaul /* 49212891Swpaul * Returning NULL prevents the dispatcher from calling 49312891Swpaul * svc_sendreply() since we already did it. 49412891Swpaul */ 49512891Swpaul return (NULL); 49612891Swpaul} 49712891Swpaul 49812891Swpaulypresp_master * 49912891Swpaulypproc_master_2_svc(ypreq_nokey *argp, struct svc_req *rqstp) 50012891Swpaul{ 50112891Swpaul static ypresp_master result; 50215426Swpaul static char ypvalbuf[YPMAXRECORD]; 50320818Swpaul keydat key = { master_sz, master_string }; 50420818Swpaul valdat val; 50512891Swpaul 50614303Swpaul result.peer = ""; 50714303Swpaul 50819161Swpaul#ifdef DB_CACHE 50919161Swpaul if (yp_access(argp->map, argp->domain, (struct svc_req *)rqstp)) { 51019161Swpaul#else 51119161Swpaul if (yp_access(argp->map, (struct svc_req *)rqstp)) { 51219161Swpaul#endif 51312891Swpaul result.stat = YP_YPERR; 51412891Swpaul return(&result); 51512891Swpaul } 51612891Swpaul 51712891Swpaul if (argp->domain == NULL) { 51812891Swpaul result.stat = YP_BADARGS; 51912891Swpaul return (&result); 52012891Swpaul } 52112891Swpaul 52220818Swpaul if (yp_select_map(argp->map, argp->domain, &key, 1) != YP_TRUE) { 52320818Swpaul result.stat = yp_errno; 52420818Swpaul return(&result); 52520818Swpaul } 52620818Swpaul 52715426Swpaul /* 52815426Swpaul * Note that we copy the data retrieved from the database to 52915426Swpaul * a private buffer and NUL terminate the buffer rather than 53015426Swpaul * terminating the data in place. We do this because by stuffing 53115426Swpaul * a '\0' into data.data, we will actually be corrupting memory 53215426Swpaul * allocated by the DB package. This is a bad thing now that we 53315426Swpaul * cache DB handles rather than closing the database immediately. 53415426Swpaul */ 53520818Swpaul result.stat = yp_getbykey(&key, &val); 53620818Swpaul if (result.stat == YP_TRUE) { 53720818Swpaul bcopy((char *)val.valdat_val, (char *)&ypvalbuf, 53820818Swpaul val.valdat_len); 53920818Swpaul ypvalbuf[val.valdat_len] = '\0'; 54015426Swpaul result.peer = (char *)&ypvalbuf; 54112891Swpaul } else 54212891Swpaul result.peer = ""; 54312891Swpaul 54412891Swpaul return (&result); 54512891Swpaul} 54612891Swpaul 54712891Swpaulypresp_order * 54812891Swpaulypproc_order_2_svc(ypreq_nokey *argp, struct svc_req *rqstp) 54912891Swpaul{ 55012891Swpaul static ypresp_order result; 55120818Swpaul keydat key = { order_sz, order_string }; 55220818Swpaul valdat val; 55312891Swpaul 55414304Swpaul result.ordernum = 0; 55514304Swpaul 55619161Swpaul#ifdef DB_CACHE 55719161Swpaul if (yp_access(argp->map, argp->domain, (struct svc_req *)rqstp)) { 55819161Swpaul#else 55919161Swpaul if (yp_access(argp->map, (struct svc_req *)rqstp)) { 56019161Swpaul#endif 56112891Swpaul result.stat = YP_YPERR; 56212891Swpaul return(&result); 56312891Swpaul } 56412891Swpaul 56512891Swpaul if (argp->domain == NULL) { 56612891Swpaul result.stat = YP_BADARGS; 56712891Swpaul return (&result); 56812891Swpaul } 56912891Swpaul 57012891Swpaul /* 57112891Swpaul * We could just check the timestamp on the map file, 57212891Swpaul * but that's a hack: we'll only know the last time the file 57312891Swpaul * was touched, not the last time the database contents were 57412891Swpaul * updated. 57512891Swpaul */ 57612891Swpaul 57720818Swpaul if (yp_select_map(argp->map, argp->domain, &key, 1) != YP_TRUE) { 57820818Swpaul result.stat = yp_errno; 57920818Swpaul return(&result); 58020818Swpaul } 58120818Swpaul 58220818Swpaul result.stat = yp_getbykey(&key, &val); 58320818Swpaul 58420818Swpaul if (result.stat == YP_TRUE) 58520818Swpaul result.ordernum = atoi((char *)val.valdat_val); 58612891Swpaul else 58712891Swpaul result.ordernum = 0; 58812891Swpaul 58912891Swpaul return (&result); 59012891Swpaul} 59112891Swpaul 59212891Swpaulstatic void yp_maplist_free(yp_maplist) 59312891Swpaul struct ypmaplist *yp_maplist; 59412891Swpaul{ 59512891Swpaul register struct ypmaplist *next; 59612891Swpaul 59712891Swpaul while(yp_maplist) { 59812891Swpaul next = yp_maplist->next; 59912891Swpaul free(yp_maplist->map); 60012891Swpaul free(yp_maplist); 60112891Swpaul yp_maplist = next; 60212891Swpaul } 60312891Swpaul return; 60412891Swpaul} 60512891Swpaul 60612891Swpaulstatic struct ypmaplist *yp_maplist_create(domain) 60712891Swpaul const char *domain; 60812891Swpaul{ 60912891Swpaul char yp_mapdir[MAXPATHLEN + 2]; 61012891Swpaul char yp_mapname[MAXPATHLEN + 2]; 61112891Swpaul struct ypmaplist *cur = NULL; 61212891Swpaul struct ypmaplist *yp_maplist = NULL; 61312891Swpaul DIR *dird; 61412891Swpaul struct dirent *dirp; 61512891Swpaul struct stat statbuf; 61612891Swpaul 61712891Swpaul snprintf(yp_mapdir, sizeof(yp_mapdir), "%s/%s", yp_dir, domain); 61812891Swpaul 61912891Swpaul if ((dird = opendir(yp_mapdir)) == NULL) { 62013800Swpaul yp_error("opendir(%s) failed: %s", yp_mapdir, strerror(errno)); 62112891Swpaul return(NULL); 62212891Swpaul } 62312891Swpaul 62412891Swpaul while ((dirp = readdir(dird)) != NULL) { 62512891Swpaul if (strcmp(dirp->d_name, ".") && strcmp(dirp->d_name, "..")) { 62614304Swpaul snprintf(yp_mapname, sizeof(yp_mapname), "%s/%s", 62714304Swpaul yp_mapdir,dirp->d_name); 62814304Swpaul if (stat(yp_mapname, &statbuf) < 0 || 62914304Swpaul !S_ISREG(statbuf.st_mode)) 63012891Swpaul continue; 63114304Swpaul if ((cur = (struct ypmaplist *) 63216044Swpaul malloc(sizeof(struct ypmaplist))) == NULL) { 63314304Swpaul yp_error("malloc() failed: %s",strerror(errno)); 63412891Swpaul closedir(dird); 63512891Swpaul yp_maplist_free(yp_maplist); 63612891Swpaul return(NULL); 63712891Swpaul } 63812891Swpaul if ((cur->map = (char *)strdup(dirp->d_name)) == NULL) { 63914304Swpaul yp_error("strdup() failed: %s",strerror(errno)); 64012891Swpaul closedir(dird); 64112891Swpaul yp_maplist_free(yp_maplist); 64212891Swpaul return(NULL); 64312891Swpaul } 64412891Swpaul cur->next = yp_maplist; 64512891Swpaul yp_maplist = cur; 64612891Swpaul if (debug) 64712891Swpaul yp_error("map: %s", yp_maplist->map); 64812891Swpaul } 64912891Swpaul 65012891Swpaul } 65112891Swpaul closedir(dird); 65212891Swpaul return(yp_maplist); 65312891Swpaul} 65412891Swpaul 65512891Swpaulypresp_maplist * 65612891Swpaulypproc_maplist_2_svc(domainname *argp, struct svc_req *rqstp) 65712891Swpaul{ 65815426Swpaul static ypresp_maplist result = { 0, NULL }; 65912891Swpaul 66019161Swpaul#ifdef DB_CACHE 66119161Swpaul if (yp_access(NULL, NULL, (struct svc_req *)rqstp)) { 66219161Swpaul#else 66312891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) { 66419161Swpaul#endif 66512891Swpaul result.stat = YP_YPERR; 66612891Swpaul return(&result); 66712891Swpaul } 66812891Swpaul 66912891Swpaul if (argp == NULL) { 67012891Swpaul result.stat = YP_BADARGS; 67112891Swpaul return (&result); 67212891Swpaul } 67312891Swpaul 67412891Swpaul if (yp_validdomain(*argp)) { 67512891Swpaul result.stat = YP_NODOM; 67612891Swpaul return (&result); 67712891Swpaul } 67812891Swpaul 67912891Swpaul /* 68012891Swpaul * We have to construct a linked list for the ypproc_maplist 68112891Swpaul * procedure using dynamically allocated memory. Since the XDR 68212891Swpaul * layer won't free this list for us, we have to deal with it 68312891Swpaul * ourselves. We call yp_maplist_free() first to free any 68412891Swpaul * previously allocated data we may have accumulated to insure 68512891Swpaul * that we have only one linked list in memory at any given 68612891Swpaul * time. 68712891Swpaul */ 68812891Swpaul 68912891Swpaul yp_maplist_free(result.maps); 69012891Swpaul 69112891Swpaul if ((result.maps = yp_maplist_create(*argp)) == NULL) { 69212891Swpaul yp_error("yp_maplist_create failed"); 69312891Swpaul result.stat = YP_YPERR; 69412891Swpaul return(&result); 69512891Swpaul } else 69612891Swpaul result.stat = YP_TRUE; 69712891Swpaul 69812891Swpaul return (&result); 69912891Swpaul} 70014262Swpaul 70114262Swpaul/* 70214262Swpaul * NIS v1 support. The nullproc, domain and domain_nonack 70314262Swpaul * functions from v1 are identical to those in v2, so all 70414262Swpaul * we have to do is hand off to them. 70514262Swpaul * 70614262Swpaul * The other functions are mostly just wrappers around their v2 70714262Swpaul * counterparts. For example, for the v1 'match' procedure, we 70814262Swpaul * crack open the argument structure, make a request to the v2 70914262Swpaul * 'match' function, repackage the data into a v1 response and 71014262Swpaul * then send it on its way. 71114262Swpaul * 71214262Swpaul * Note that we don't support the pull, push and get procedures. 71314262Swpaul * There's little documentation available to show what they 71414262Swpaul * do, and I suspect they're meant largely for map transfers 71514262Swpaul * between master and slave servers. 71614262Swpaul */ 71714262Swpaul 71814262Swpaulvoid * 71914262Swpaulypoldproc_null_1_svc(void *argp, struct svc_req *rqstp) 72014262Swpaul{ 72114262Swpaul return(ypproc_null_2_svc(argp, rqstp)); 72214262Swpaul} 72314262Swpaul 72414262Swpaulbool_t * 72514262Swpaulypoldproc_domain_1_svc(domainname *argp, struct svc_req *rqstp) 72614262Swpaul{ 72714262Swpaul return(ypproc_domain_2_svc(argp, rqstp)); 72814262Swpaul} 72914262Swpaul 73014262Swpaulbool_t * 73114262Swpaulypoldproc_domain_nonack_1_svc(domainname *argp, struct svc_req *rqstp) 73214262Swpaul{ 73314262Swpaul return (ypproc_domain_nonack_2_svc(argp, rqstp)); 73414262Swpaul} 73514262Swpaul 73614304Swpaul/* 73714304Swpaul * the 'match' procedure sends a response of type YPRESP_VAL 73814304Swpaul */ 73914262Swpaulypresponse * 74014262Swpaulypoldproc_match_1_svc(yprequest *argp, struct svc_req *rqstp) 74114262Swpaul{ 74214262Swpaul static ypresponse result; 74314262Swpaul ypresp_val *v2_result; 74414262Swpaul 74514262Swpaul result.yp_resptype = YPRESP_VAL; 74614304Swpaul result.ypresponse_u.yp_resp_valtype.val.valdat_val = ""; 74714304Swpaul result.ypresponse_u.yp_resp_valtype.val.valdat_len = 0; 74814262Swpaul 74914262Swpaul if (argp->yp_reqtype != YPREQ_KEY) { 75014262Swpaul result.ypresponse_u.yp_resp_valtype.stat = YP_BADARGS; 75114262Swpaul return(&result); 75214262Swpaul } 75314262Swpaul 75414262Swpaul v2_result = ypproc_match_2_svc(&argp->yprequest_u.yp_req_keytype,rqstp); 75514262Swpaul if (v2_result == NULL) 75614262Swpaul return(NULL); 75714262Swpaul 75814262Swpaul bcopy((char *)v2_result, 75914262Swpaul (char *)&result.ypresponse_u.yp_resp_valtype, 76014262Swpaul sizeof(ypresp_val)); 76114262Swpaul 76214262Swpaul return (&result); 76314262Swpaul} 76414262Swpaul 76514304Swpaul/* 76614304Swpaul * the 'first' procedure sends a response of type YPRESP_KEY_VAL 76714304Swpaul */ 76814262Swpaulypresponse * 76914262Swpaulypoldproc_first_1_svc(yprequest *argp, struct svc_req *rqstp) 77014262Swpaul{ 77114262Swpaul static ypresponse result; 77214262Swpaul ypresp_key_val *v2_result; 77314262Swpaul 77414262Swpaul result.yp_resptype = YPRESP_KEY_VAL; 77514304Swpaul result.ypresponse_u.yp_resp_key_valtype.val.valdat_val = 77614304Swpaul result.ypresponse_u.yp_resp_key_valtype.key.keydat_val = ""; 77714304Swpaul result.ypresponse_u.yp_resp_key_valtype.val.valdat_len = 77814304Swpaul result.ypresponse_u.yp_resp_key_valtype.key.keydat_len = 0; 77914262Swpaul 78014262Swpaul if (argp->yp_reqtype != YPREQ_NOKEY) { 78114262Swpaul result.ypresponse_u.yp_resp_key_valtype.stat = YP_BADARGS; 78214262Swpaul return(&result); 78314262Swpaul } 78414262Swpaul 78514262Swpaul v2_result = ypproc_first_2_svc(&argp->yprequest_u.yp_req_nokeytype, 78614262Swpaul rqstp); 78714262Swpaul if (v2_result == NULL) 78814262Swpaul return(NULL); 78914262Swpaul 79014262Swpaul bcopy((char *)v2_result, 79114262Swpaul (char *)&result.ypresponse_u.yp_resp_key_valtype, 79214262Swpaul sizeof(ypresp_key_val)); 79314262Swpaul 79414262Swpaul return (&result); 79514262Swpaul} 79614262Swpaul 79714304Swpaul/* 79814304Swpaul * the 'next' procedure sends a response of type YPRESP_KEY_VAL 79914304Swpaul */ 80014262Swpaulypresponse * 80114262Swpaulypoldproc_next_1_svc(yprequest *argp, struct svc_req *rqstp) 80214262Swpaul{ 80314262Swpaul static ypresponse result; 80414262Swpaul ypresp_key_val *v2_result; 80514262Swpaul 80614262Swpaul result.yp_resptype = YPRESP_KEY_VAL; 80714304Swpaul result.ypresponse_u.yp_resp_key_valtype.val.valdat_val = 80814304Swpaul result.ypresponse_u.yp_resp_key_valtype.key.keydat_val = ""; 80914304Swpaul result.ypresponse_u.yp_resp_key_valtype.val.valdat_len = 81014304Swpaul result.ypresponse_u.yp_resp_key_valtype.key.keydat_len = 0; 81114262Swpaul 81214262Swpaul if (argp->yp_reqtype != YPREQ_KEY) { 81314262Swpaul result.ypresponse_u.yp_resp_key_valtype.stat = YP_BADARGS; 81414262Swpaul return(&result); 81514262Swpaul } 81614262Swpaul 81714262Swpaul v2_result = ypproc_next_2_svc(&argp->yprequest_u.yp_req_keytype,rqstp); 81814262Swpaul if (v2_result == NULL) 81914262Swpaul return(NULL); 82014262Swpaul 82114262Swpaul bcopy((char *)v2_result, 82214262Swpaul (char *)&result.ypresponse_u.yp_resp_key_valtype, 82314262Swpaul sizeof(ypresp_key_val)); 82414262Swpaul 82514262Swpaul return (&result); 82614262Swpaul} 82714262Swpaul 82814304Swpaul/* 82914304Swpaul * the 'poll' procedure sends a response of type YPRESP_MAP_PARMS 83014304Swpaul */ 83114262Swpaulypresponse * 83214262Swpaulypoldproc_poll_1_svc(yprequest *argp, struct svc_req *rqstp) 83314262Swpaul{ 83414262Swpaul static ypresponse result; 83514262Swpaul ypresp_master *v2_result1; 83614262Swpaul ypresp_order *v2_result2; 83714262Swpaul 83814262Swpaul result.yp_resptype = YPRESP_MAP_PARMS; 83914262Swpaul result.ypresponse_u.yp_resp_map_parmstype.domain = 84014262Swpaul argp->yprequest_u.yp_req_nokeytype.domain; 84114262Swpaul result.ypresponse_u.yp_resp_map_parmstype.map = 84214262Swpaul argp->yprequest_u.yp_req_nokeytype.map; 84314262Swpaul /* 84414262Swpaul * Hmm... there is no 'status' value in the 84514262Swpaul * yp_resp_map_parmstype structure, so I have to 84614262Swpaul * guess at what to do to indicate a failure. 84714262Swpaul * I hope this is right. 84814262Swpaul */ 84914262Swpaul result.ypresponse_u.yp_resp_map_parmstype.ordernum = 0; 85014262Swpaul result.ypresponse_u.yp_resp_map_parmstype.peer = ""; 85114262Swpaul 85214262Swpaul if (argp->yp_reqtype != YPREQ_MAP_PARMS) { 85314262Swpaul return(&result); 85414262Swpaul } 85514262Swpaul 85614262Swpaul v2_result1 = ypproc_master_2_svc(&argp->yprequest_u.yp_req_nokeytype, 85714262Swpaul rqstp); 85814262Swpaul if (v2_result1 == NULL) 85914262Swpaul return(NULL); 86014262Swpaul 86114262Swpaul if (v2_result1->stat != YP_TRUE) { 86214262Swpaul return(&result); 86314262Swpaul } 86414262Swpaul 86514262Swpaul v2_result2 = ypproc_order_2_svc(&argp->yprequest_u.yp_req_nokeytype, 86614262Swpaul rqstp); 86714262Swpaul if (v2_result2 == NULL) 86814262Swpaul return(NULL); 86914262Swpaul 87014262Swpaul if (v2_result2->stat != YP_TRUE) { 87114262Swpaul return(&result); 87214262Swpaul } 87314262Swpaul 87414262Swpaul result.ypresponse_u.yp_resp_map_parmstype.peer = 87514262Swpaul v2_result1->peer; 87614262Swpaul result.ypresponse_u.yp_resp_map_parmstype.ordernum = 87714262Swpaul v2_result2->ordernum; 87814262Swpaul 87914262Swpaul return (&result); 88014262Swpaul} 88114262Swpaul 88214262Swpaulypresponse * 88314262Swpaulypoldproc_push_1_svc(yprequest *argp, struct svc_req *rqstp) 88414262Swpaul{ 88514262Swpaul static ypresponse result; 88614262Swpaul 88714262Swpaul /* 88814262Swpaul * Not implemented. 88914262Swpaul */ 89014262Swpaul 89114262Swpaul return (&result); 89214262Swpaul} 89314262Swpaul 89414262Swpaulypresponse * 89514262Swpaulypoldproc_pull_1_svc(yprequest *argp, struct svc_req *rqstp) 89614262Swpaul{ 89714262Swpaul static ypresponse result; 89814262Swpaul 89914262Swpaul /* 90014262Swpaul * Not implemented. 90114262Swpaul */ 90214262Swpaul 90314262Swpaul return (&result); 90414262Swpaul} 90514262Swpaul 90614262Swpaulypresponse * 90714262Swpaulypoldproc_get_1_svc(yprequest *argp, struct svc_req *rqstp) 90814262Swpaul{ 90914262Swpaul static ypresponse result; 91014262Swpaul 91114262Swpaul /* 91214262Swpaul * Not implemented. 91314262Swpaul */ 91414262Swpaul 91514262Swpaul return (&result); 91614262Swpaul} 917