511 lines
11 KiB
C
511 lines
11 KiB
C
/* $NetBSD: pcnfsd_v2.c,v 1.14 2018/01/23 21:06:25 sevan Exp $ */
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/* RE_SID: @(%)/usr/dosnfs/shades_SCCS/unix/pcnfsd/v2/src/SCCS/s.pcnfsd_v2.c 1.2 91/12/18 13:26:13 SMI */
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/*
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**=====================================================================
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** Copyright (c) 1986,1987,1988,1989,1990,1991 by Sun Microsystems, Inc.
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** @(#)pcnfsd_v2.c 1.2 12/18/91
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**=====================================================================
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*/
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/*
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**=====================================================================
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** I N C L U D E F I L E S E C T I O N *
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** *
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** If your port requires different include files, add a suitable *
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** #define in the customization section, and make the inclusion or *
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** exclusion of the files conditional on this. *
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**=====================================================================
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*/
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#include <sys/file.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <grp.h>
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#include <netdb.h>
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#include <pwd.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#ifdef USE_YP
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#include <rpcsvc/ypclnt.h>
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#endif
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#ifndef SYSV
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#include <sys/wait.h>
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#endif
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#ifdef ISC_2_0
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#include <sys/fcntl.h>
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#endif
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#ifdef SHADOW_SUPPORT
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#include <shadow.h>
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#endif
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#include "common.h"
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#include "pcnfsd.h"
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#include "extern.h"
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/*
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**=====================================================================
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** C O D E S E C T I O N *
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**=====================================================================
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*/
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static char no_comment[] = "No comment";
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static char not_supported[] = "Not supported";
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static char pcnfsd_version[] = "@(#)pcnfsd_v2.c 1.2 - rpc.pcnfsd V2.0 (c) 1991 Sun Technology Enterprises, Inc.";
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/*ARGSUSED*/
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void *
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pcnfsd2_null_2_svc(void *arg, struct svc_req *req)
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{
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static char dummy;
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return ((void *) &dummy);
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}
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v2_auth_results *
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pcnfsd2_auth_2_svc(v2_auth_args *arg, struct svc_req *req)
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{
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static v2_auth_results r;
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char uname[32];
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char pw[64];
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int c1, c2;
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struct passwd *p;
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static u_int extra_gids[EXTRAGIDLEN];
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static char home[256];
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#ifdef USE_YP
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char *yphome;
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char *cp;
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#endif /* USE_YP */
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r.stat = AUTH_RES_FAIL; /* assume failure */
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r.uid = (int) -2;
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r.gid = (int) -2;
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r.cm = &no_comment[0];
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r.gids.gids_len = 0;
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r.gids.gids_val = &extra_gids[0];
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home[0] = '\0';
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r.home = &home[0];
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r.def_umask = umask(0);
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(void) umask(r.def_umask); /* or use 022 */
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scramble(arg->id, uname);
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scramble(arg->pw, pw);
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#ifdef USER_CACHE
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if (check_cache(uname, pw, &r.uid, &r.gid)) {
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r.stat = AUTH_RES_OK;
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#ifdef WTMP
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wlogin(uname, req);
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#endif
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fillin_extra_groups
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(uname, r.gid, &r.gids.gids_len, extra_gids);
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#ifdef USE_YP
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yphome = find_entry(uname, "auto.home");
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if (yphome) {
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strlcpy(home, yphome, sizeof(home));
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free(yphome);
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cp = strchr(home, ':');
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cp++;
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cp = strchr(cp, ':');
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if (cp)
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*cp = '/';
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}
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#endif
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return (&r);
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}
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#endif
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p = get_password(uname);
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if (p == NULL)
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return (&r);
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c1 = strlen(pw);
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c2 = strlen(p->pw_passwd);
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if ((c1 && !c2) || (c2 && !c1) ||
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(strcmp(p->pw_passwd, crypt(pw, p->pw_passwd)))) {
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return (&r);
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}
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r.stat = AUTH_RES_OK;
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r.uid = p->pw_uid;
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r.gid = p->pw_gid;
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#ifdef WTMP
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wlogin(uname, req);
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#endif
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fillin_extra_groups(uname, r.gid, &r.gids.gids_len, extra_gids);
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#ifdef USE_YP
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yphome = find_entry(uname, "auto.home");
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if (yphome) {
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strlcpy(home, yphome, sizeof(home));
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free(yphome);
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cp = strchr(home, ':');
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cp++;
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cp = strchr(cp, ':');
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if (cp)
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*cp = '/';
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}
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#endif
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#ifdef USER_CACHE
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add_cache_entry(p);
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#endif
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return (&r);
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}
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v2_pr_init_results *
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pcnfsd2_pr_init_2_svc(v2_pr_init_args *arg, struct svc_req *req)
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{
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static v2_pr_init_results res;
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res.stat =
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(pirstat) pr_init(arg->system, arg->pn, &res.dir);
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res.cm = &no_comment[0];
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return (&res);
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}
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v2_pr_start_results *
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pcnfsd2_pr_start_2_svc(v2_pr_start_args *arg, struct svc_req *req)
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{
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static v2_pr_start_results res;
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res.stat =
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(psrstat) pr_start2(arg->system, arg->pn, arg->user,
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arg->file, arg->opts, &res.id);
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res.cm = &no_comment[0];
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return (&res);
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}
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/*ARGSUSED*/
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v2_pr_list_results *
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pcnfsd2_pr_list_2_svc(void *arg, struct svc_req *req)
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{
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static v2_pr_list_results res;
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if (printers == NULL)
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(void) build_pr_list();
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res.cm = &no_comment[0];
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res.printers = printers;
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return (&res);
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}
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v2_pr_queue_results *
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pcnfsd2_pr_queue_2_svc(v2_pr_queue_args *arg, struct svc_req *req)
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{
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static v2_pr_queue_results res;
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res.stat = build_pr_queue(arg->pn, arg->user,
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arg->just_mine, &res.qlen, &res.qshown);
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res.cm = &no_comment[0];
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res.just_yours = arg->just_mine;
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res.jobs = queue;
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return (&res);
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}
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v2_pr_status_results *
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pcnfsd2_pr_status_2_svc(v2_pr_status_args *arg, struct svc_req *req)
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{
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static v2_pr_status_results res;
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static char status[128];
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res.stat = get_pr_status(arg->pn, &res.avail, &res.printing,
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&res.qlen, &res.needs_operator, &status[0], sizeof(status));
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res.status = &status[0];
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res.cm = &no_comment[0];
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return (&res);
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}
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v2_pr_cancel_results *
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pcnfsd2_pr_cancel_2_svc(v2_pr_cancel_args *arg, struct svc_req *req)
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{
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static v2_pr_cancel_results res;
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res.stat = pr_cancel(arg->pn, arg->user, arg->id);
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res.cm = &no_comment[0];
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return (&res);
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}
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/*ARGSUSED*/
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v2_pr_requeue_results *
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pcnfsd2_pr_requeue_2_svc(v2_pr_requeue_args *arg, struct svc_req *req)
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{
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static v2_pr_requeue_results res;
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res.stat = PC_RES_FAIL;
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res.cm = ¬_supported[0];
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return (&res);
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}
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/*ARGSUSED*/
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v2_pr_hold_results *
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pcnfsd2_pr_hold_2_svc(v2_pr_hold_args *arg, struct svc_req *req)
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{
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static v2_pr_hold_results res;
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res.stat = PC_RES_FAIL;
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res.cm = ¬_supported[0];
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return (&res);
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}
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/*ARGSUSED*/
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v2_pr_release_results *
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pcnfsd2_pr_release_2_svc(v2_pr_release_args *arg, struct svc_req *req)
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{
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static v2_pr_release_results res;
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res.stat = PC_RES_FAIL;
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res.cm = ¬_supported[0];
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return (&res);
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}
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/*ARGSUSED*/
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v2_pr_admin_results *
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pcnfsd2_pr_admin_2_svc(v2_pr_admin_args *arg, struct svc_req *req)
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{
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static v2_pr_admin_results res;
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/*
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** The default action for admin is to fail.
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** If someone wishes to implement an administration
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** mechanism, and isn't worried about the security
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** holes, go right ahead.
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*/
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res.cm = ¬_supported[0];
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res.stat = PI_RES_FAIL;
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return (&res);
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}
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void
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free_mapreq_results(mapreq_res p)
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{
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if (p->mapreq_next)
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free_mapreq_results(p->mapreq_next); /* recurse */
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if (p->name)
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(void) free(p->name);
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(void) free(p);
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return;
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}
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static char *my_strdup(const char *);
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static char *
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my_strdup(const char *s)
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{
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size_t len;
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char *r;
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len = strlen(s);
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r = (char *) grab(len + 1);
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memcpy(r, s, len + 1);
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return (r);
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}
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v2_mapid_results *
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pcnfsd2_mapid_2_svc(v2_mapid_args *arg, struct svc_req *req)
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{
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static v2_mapid_results res;
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struct passwd *p_passwd;
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struct group *p_group;
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mapreq_arg a;
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mapreq_res next_r;
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mapreq_res last_r = NULL;
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if (res.res_list) {
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free_mapreq_results(res.res_list);
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res.res_list = NULL;
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}
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a = arg->req_list;
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while (a) {
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next_r = (struct mapreq_res_item *)
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grab(sizeof(struct mapreq_res_item));
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next_r->stat = MAP_RES_UNKNOWN;
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next_r->req = a->req;
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next_r->id = a->id;
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next_r->name = NULL;
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next_r->mapreq_next = NULL;
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if (last_r == NULL)
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res.res_list = next_r;
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else
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last_r->mapreq_next = next_r;
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last_r = next_r;
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switch (a->req) {
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case MAP_REQ_UID:
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p_passwd = getpwuid((uid_t) a->id);
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if (p_passwd) {
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next_r->name = my_strdup(p_passwd->pw_name);
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next_r->stat = MAP_RES_OK;
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}
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break;
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case MAP_REQ_GID:
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p_group = getgrgid((gid_t) a->id);
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if (p_group) {
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next_r->name = my_strdup(p_group->gr_name);
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next_r->stat = MAP_RES_OK;
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}
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break;
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case MAP_REQ_UNAME:
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next_r->name = my_strdup(a->name);
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p_passwd = getpwnam(a->name);
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if (p_passwd) {
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next_r->id = p_passwd->pw_uid;
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next_r->stat = MAP_RES_OK;
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}
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break;
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case MAP_REQ_GNAME:
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next_r->name = my_strdup(a->name);
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p_group = getgrnam(a->name);
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if (p_group) {
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next_r->id = p_group->gr_gid;
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next_r->stat = MAP_RES_OK;
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}
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break;
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}
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if (next_r->name == NULL)
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next_r->name = my_strdup("");
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a = a->mapreq_next;
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}
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res.cm = &no_comment[0];
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return (&res);
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}
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/*ARGSUSED*/
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v2_alert_results *
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pcnfsd2_alert_2_svc(v2_alert_args *arg, struct svc_req *req)
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{
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static v2_alert_results res;
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res.stat = ALERT_RES_FAIL;
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res.cm = ¬_supported[0];
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return (&res);
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}
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/*ARGSUSED*/
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v2_info_results *
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pcnfsd2_info_2_svc(v2_info_args *arg, struct svc_req *req)
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{
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static v2_info_results res;
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static int facilities[FACILITIESMAX];
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static int onetime = 1;
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#define UNSUPPORTED -1
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#define QUICK 100
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#define SLOW 2000
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if (onetime) {
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onetime = 0;
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facilities[PCNFSD2_NULL] = QUICK;
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facilities[PCNFSD2_INFO] = QUICK;
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facilities[PCNFSD2_PR_INIT] = QUICK;
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facilities[PCNFSD2_PR_START] = SLOW;
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facilities[PCNFSD2_PR_LIST] = QUICK; /* except first time */
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facilities[PCNFSD2_PR_QUEUE] = SLOW;
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facilities[PCNFSD2_PR_STATUS] = SLOW;
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facilities[PCNFSD2_PR_CANCEL] = SLOW;
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facilities[PCNFSD2_PR_ADMIN] = UNSUPPORTED;
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facilities[PCNFSD2_PR_REQUEUE] = UNSUPPORTED;
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facilities[PCNFSD2_PR_HOLD] = UNSUPPORTED;
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facilities[PCNFSD2_PR_RELEASE] = UNSUPPORTED;
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facilities[PCNFSD2_MAPID] = QUICK;
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facilities[PCNFSD2_AUTH] = QUICK;
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facilities[PCNFSD2_ALERT] = QUICK;
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}
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res.facilities.facilities_len = PCNFSD2_ALERT + 1;
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res.facilities.facilities_val = facilities;
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res.vers = &pcnfsd_version[0];
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res.cm = &no_comment[0];
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return (&res);
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}
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void
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fillin_extra_groups(char *uname, gid_t main_gid, int *len, gid_t extra_gids[EXTRAGIDLEN])
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{
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struct group *grp;
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__aconst char *__aconst *members;
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int n = 0;
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setgrent();
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while (n < EXTRAGIDLEN) {
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grp = getgrent();
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if (grp == NULL)
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break;
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if (grp->gr_gid == main_gid)
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continue;
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for (members = grp->gr_mem; members && *members; members++) {
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if (!strcmp(*members, uname)) {
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extra_gids[n++] = grp->gr_gid;
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break;
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}
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}
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}
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endgrent();
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*len = n;
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}
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#ifdef USE_YP
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/* the following is from rpcsvc/yp_prot.h */
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#define YPMAXDOMAIN 64
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/*
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* find_entry returns NULL on any error (printing a message) and
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* otherwise returns a pointer to the malloc'd result. The caller
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* is responsible for free()ing the result string.
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*/
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char *
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find_entry(const char *key, const char *map)
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{
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int err;
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char *val = NULL;
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char *cp;
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int len = 0;
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static char domain[YPMAXDOMAIN + 1];
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if (getdomainname(domain, YPMAXDOMAIN)) {
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msg_out("rpc.pcnfsd: getdomainname failed");
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return (NULL);
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}
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if ((err = yp_bind(domain)) != 0) {
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#ifdef DEBUG
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msg_out("rpc.pcnfsd: yp_bind failed");
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#endif
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return (NULL);
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}
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err = yp_match(domain, map, key, strlen(key), &val, &len);
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if (err) {
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msg_out("rpc.pcnfsd: yp_match failed");
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if (val)
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free(val);
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return (NULL);
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}
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if ((cp = strchr(val, '\n')) != NULL)
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*cp = '\0'; /* in case we get an extra NL at the end */
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return (val);
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}
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#endif
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