diff options
author | Todd C. Miller <millert@cvs.openbsd.org> | 2001-06-28 22:45:36 +0000 |
---|---|---|
committer | Todd C. Miller <millert@cvs.openbsd.org> | 2001-06-28 22:45:36 +0000 |
commit | 70e1e7de79f4ab065c56f7aab13d18b8473f0ed1 (patch) | |
tree | f4fb5be27e78b1ef1263b7219c0ae9bc0c9ae52e /usr.bin/login | |
parent | 55ff41258048c2162ac6129e0fb5901132c89285 (diff) |
No longer used now that we do BSD auth
Diffstat (limited to 'usr.bin/login')
-rw-r--r-- | usr.bin/login/k5login.c | 261 | ||||
-rw-r--r-- | usr.bin/login/klogin.c | 311 |
2 files changed, 0 insertions, 572 deletions
diff --git a/usr.bin/login/k5login.c b/usr.bin/login/k5login.c deleted file mode 100644 index 707d13b796d..00000000000 --- a/usr.bin/login/k5login.c +++ /dev/null @@ -1,261 +0,0 @@ -/* $OpenBSD: k5login.c,v 1.2 1996/06/26 05:36:00 deraadt Exp $ */ -/* $NetBSD: k5login.c,v 1.2 1994/12/23 06:52:58 jtc Exp $ */ - -/*- - * Copyright (c) 1990 The Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -#if 0 -static char sccsid[] = "@(#)klogin.c 5.11 (Berkeley) 7/12/92"; -#endif -static char rcsid[] = "$OpenBSD: k5login.c,v 1.2 1996/06/26 05:36:00 deraadt Exp $"; -#endif /* not lint */ - -#ifdef KERBEROS5 -#include <sys/param.h> -#include <sys/syslog.h> -#include <com_err.h> -#include <krb5/krb5.h> -#include <krb5/ext-proto.h> -#include <krb5/los-proto.h> -#include <pwd.h> -#include <netdb.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -#define KRB5_DEFAULT_OPTIONS 0 -#define KRB5_DEFAULT_LIFE 60*60*10 /* 10 hours */ - -krb5_data tgtname = { - KRB5_TGS_NAME_SIZE, - KRB5_TGS_NAME -}; - -/* - * Try no preauthentication first; then try the encrypted timestamp - */ -int preauth_search_list[] = { - 0, - KRB5_PADATA_ENC_TIMESTAMP, - -1 - }; - -extern int notickets; -extern char *krbtkfile_env; -extern char *tty; - -static char tkt_location[MAXPATHLEN]; - -/* - * Attempt to log the user in using Kerberos authentication - * - * return 0 on success (will be logged in) - * 1 if Kerberos failed (try local password in login) - */ -int -klogin(pw, instance, localhost, password) - struct passwd *pw; - char *instance, *localhost, *password; -{ - krb5_error_code kerror; - krb5_address **my_addresses; - krb5_principal me, server; - krb5_creds my_creds; - krb5_timestamp now; - krb5_ccache ccache = NULL; - int preauth_type = -1; - long lifetime = KRB5_DEFAULT_LIFE; - int options = KRB5_DEFAULT_OPTIONS; - int i; - char *realm, *client_name; - char *principal; - -#ifdef SKEY - /* - * We don't do s/key challenge and Kerberos at the same time - */ - if (strcasecmp(password, "s/key") == 0) { - return (1); - } -#endif - - krb5_init_ets(); - - /* - * Root logins don't use Kerberos. - * If we have a realm, try getting a ticket-granting ticket - * and using it to authenticate. Otherwise, return - * failure so that we can try the normal passwd file - * for a password. If that's ok, log the user in - * without issuing any tickets. - */ - if (strcmp(pw->pw_name, "root") == 0 || - krb5_get_default_realm(&realm)) - return (1); - - /* - * get TGT for local realm - * tickets are stored in a file named TKT_ROOT plus uid - * except for user.root tickets. - */ - - if (strcmp(instance, "root") != 0) - (void)sprintf(tkt_location, "FILE:/tmp/krb5cc_%d.%s", - pw->pw_uid, tty); - else - (void)sprintf(tkt_location, "FILE:/tmp/krb5cc_root_%d.%s", - pw->pw_uid, tty); - krbtkfile_env = tkt_location; - - principal = malloc(strlen(pw->pw_name)+strlen(instance)+2); - strcpy(principal, pw->pw_name); - if (strlen(instance)) { - strcat(principal, "/"); - strcat(principal, instance); - } - - if (kerror = krb5_cc_resolve(tkt_location, &ccache)) { - syslog(LOG_NOTICE, "warning: %s while getting default ccache", - error_message(kerror)); - return(1); - } - - if (kerror = krb5_parse_name(principal, &me)) { - syslog(LOG_NOTICE, "warning: %s when parsing name %s", - error_message(kerror), principal); - return(1); - } - - if (kerror = krb5_unparse_name(me, &client_name)) { - syslog(LOG_NOTICE, "warning: %s when unparsing name %s", - error_message(kerror), principal); - return(1); - } - - kerror = krb5_cc_initialize (ccache, me); - if (kerror != 0) { - syslog(LOG_NOTICE, "%s when initializing cache %s", - error_message(kerror), tkt_location); - return(1); - } - - memset((char *)&my_creds, 0, sizeof(my_creds)); - - my_creds.client = me; - - if (kerror = krb5_build_principal_ext(&server, - krb5_princ_realm(me)->length, - krb5_princ_realm(me)->data, - tgtname.length, tgtname.data, - krb5_princ_realm(me)->length, - krb5_princ_realm(me)->data, - 0)) { - syslog(LOG_NOTICE, "%s while building server name", - error_message(kerror)); - return(1); - } - - my_creds.server = server; - - kerror = krb5_os_localaddr(&my_addresses); - if (kerror != 0) { - syslog(LOG_NOTICE, "%s when getting my address", - error_message(kerror)); - return(1); - } - - if (kerror = krb5_timeofday(&now)) { - syslog(LOG_NOTICE, "%s while getting time of day", - error_message(kerror)); - return(1); - } - my_creds.times.starttime = 0; /* start timer when request - gets to KDC */ - my_creds.times.endtime = now + lifetime; - my_creds.times.renew_till = 0; - - for (i=0; preauth_search_list[i] >= 0; i++) { - kerror = krb5_get_in_tkt_with_password(options, my_addresses, - preauth_search_list[i], - ETYPE_DES_CBC_CRC, - KEYTYPE_DES, - password, - ccache, - &my_creds, 0); - if (kerror != KRB5KDC_PREAUTH_FAILED && - kerror != KRB5KRB_ERR_GENERIC) - break; - } - - krb5_free_principal(server); - krb5_free_addresses(my_addresses); - - if (chown(&tkt_location[5], pw->pw_uid, pw->pw_gid) < 0) - syslog(LOG_ERR, "chown tkfile (%s): %m", &tkt_location[5]); - - if (kerror) { - if (kerror == KRB5KRB_AP_ERR_BAD_INTEGRITY) - printf("%s: Kerberos Password incorrect\n", principal); - else - printf("%s while getting initial credentials\n", error_message(kerror)); - - return(1); - } - - /* Success */ - notickets = 0; - return(0); -} - -/* - * Remove any credentials - */ -void -kdestroy() -{ - krb5_error_code code; - krb5_ccache ccache = NULL; - - if (krbtkfile_env == NULL) - return; - - code = krb5_cc_resolve(krbtkfile_env, &ccache); - if (!code) { - code = krb5_cc_destroy(ccache); - if (!code) { - krb5_cc_close(ccache); - } - } -} -#endif diff --git a/usr.bin/login/klogin.c b/usr.bin/login/klogin.c deleted file mode 100644 index af273532e01..00000000000 --- a/usr.bin/login/klogin.c +++ /dev/null @@ -1,311 +0,0 @@ -/* $OpenBSD: klogin.c,v 1.11 2000/12/02 22:44:36 hin Exp $ */ -/* $NetBSD: klogin.c,v 1.7 1996/05/21 22:07:04 mrg Exp $ */ - -/*- - * Copyright (c) 1990, 1993, 1994 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -#if 0 -static char sccsid[] = "@(#)klogin.c 8.3 (Berkeley) 4/2/94"; -#endif -static char rcsid[] = "$OpenBSD: klogin.c,v 1.11 2000/12/02 22:44:36 hin Exp $"; -#endif /* not lint */ - -#ifdef KERBEROS -#include <sys/param.h> -#include <sys/syslog.h> -#include <des.h> -#include <kerberosIV/krb.h> -#include <kerberosIV/kafs.h> - -#include <err.h> -#include <netdb.h> -#include <pwd.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> - -#define INITIAL_TICKET "krbtgt" -#define VERIFY_SERVICE "rcmd" - -extern int notickets; -extern char *krbtkfile_env; -extern char *tty; - -static char tkt_location[MAXPATHLEN]; /* a pointer to this is returned... */ - -/* - * Attempt to log the user in using Kerberos authentication - * - * return 0 on success (will be logged in) - * 1 if Kerberos failed (try local password in login) - */ -int -klogin(pw, instance, localhost, password) - struct passwd *pw; - char *instance, *localhost, *password; -{ - int kerror, fd; - AUTH_DAT authdata; - KTEXT_ST ticket; - struct hostent *hp; - unsigned long faddr; - char realm[REALM_SZ], savehost[MAXHOSTNAMELEN]; - char *krb_get_phost(); - -#ifdef SKEY - /* - * We don't do s/key challenge and Kerberos at the same time - */ - if (strcasecmp(password, "s/key") == 0) { - return (1); - } -#endif - - /* If no srvtab file exists, fail immediatly. This will make - * login _much_ quicker on systems with sporadical contact with - * the outside world. - * We should really change the semantics for enabling kerberos. - */ - if((fd = open(KEYFILE, O_RDONLY, 0)) < 0) - return 1; - close(fd); - - /* - * Root logins don't use Kerberos (or at least shouldn't be - * sending kerberos passwords around in cleartext), so don't - * allow any root logins here (keeping in mind that we only - * get here with a password). - * - * If we have a realm, try getting a ticket-granting ticket - * and using it to authenticate. Otherwise, return - * failure so that we can try the normal passwd file - * for a password. If that's ok, log the user in - * without issuing any tickets. - */ - if (pw->pw_uid == 0 || krb_get_lrealm(realm, 0) != KSUCCESS) - return (1); - - /* - * get TGT for local realm - * tickets are stored in a file named TKT_ROOT plus uid plus tty - * except for user.root tickets. - */ - - if (strcmp(instance, "root") != 0) - snprintf(tkt_location, sizeof(tkt_location), "%s%d", - TKT_ROOT, pw->pw_uid); - else - snprintf(tkt_location, sizeof(tkt_location), "%s_root_%d.%s", - TKT_ROOT, pw->pw_uid, tty); - krbtkfile_env = tkt_location; - (void)krb_set_tkt_string(tkt_location); - - /* - * Set real as well as effective ID to 0 for the moment, - * to make the kerberos library do the right thing. - */ - if (setuid(0) < 0) { - warnx("setuid"); - return (1); - } - kerror = krb_get_pw_in_tkt(pw->pw_name, instance, - realm, INITIAL_TICKET, realm, DEFAULT_TKT_LIFE, password); - /* - * If we got a TGT, get a local "rcmd" ticket and check it so as to - * ensure that we are not talking to a bogus Kerberos server. - * - * There are 2 cases where we still allow a login: - * 1: the VERIFY_SERVICE doesn't exist in the KDC - * 2: local host has no srvtab, as (hopefully) indicated by a - * return value of RD_AP_UNDEC from krb_rd_req(). - */ - if (kerror != INTK_OK) { - if (kerror != INTK_BADPW && kerror != KDC_PR_UNKNOWN) { - syslog(LOG_ERR, "Kerberos intkt error: %s", - krb_err_txt[kerror]); - dest_tkt(); - } - return (1); - } - - /* - * Set the owner of the ticket file to root but bail if someone - * has nefariously swapped a link in place of the file. - */ - fd = open(TKT_FILE, O_RDWR|O_NOFOLLOW, 0); - if (fd == -1) { - syslog(LOG_ERR, "unable to open ticket file: %m"); - dest_tkt(); - return (1); - } - if (fchown(fd, pw->pw_uid, pw->pw_gid) < 0) - syslog(LOG_ERR, "fchown tkfile (%s): %m", TKT_FILE); - close(fd); - - (void)strlcpy(savehost, krb_get_phost(localhost), sizeof(savehost)); - - /* - * if the "VERIFY_SERVICE" doesn't exist in the KDC for this host, - * still allow login with tickets, but log the error condition. - */ - - kerror = krb_mk_req(&ticket, VERIFY_SERVICE, savehost, realm, 33); - if (kerror == KDC_PR_UNKNOWN) { - syslog(LOG_NOTICE, - "warning: TGT not verified (%s); %s.%s not registered, or srvtab is wrong?", - krb_err_txt[kerror], VERIFY_SERVICE, savehost); - notickets = 0; - /* - * but for security, don't allow root instances in under - * this condition! - */ - if (strcmp(instance, "root") == 0) { - syslog(LOG_ERR, "Kerberos %s root instance login refused", - pw->pw_name); - dest_tkt(); - return (1); - } - /* Otherwise, leave ticket around, but make sure - * password matches the Unix password. */ - return (1); - } - - if (kerror != KSUCCESS) { - warnx("unable to use TGT: (%s)", krb_err_txt[kerror]); - syslog(LOG_NOTICE, "unable to use TGT: (%s)", - krb_err_txt[kerror]); - dest_tkt(); - return (1); - } - - if (!(hp = gethostbyname(localhost))) { - syslog(LOG_ERR, "couldn't get local host address"); - dest_tkt(); - return (1); - } - - memmove((void *)&faddr, (void *)hp->h_addr, sizeof(faddr)); - - kerror = krb_rd_req(&ticket, VERIFY_SERVICE, savehost, faddr, - &authdata, ""); - - if (kerror == KSUCCESS) { - notickets = 0; - return (0); - } - - /* undecipherable: probably didn't have a srvtab on the local host */ - if (kerror == RD_AP_UNDEC) { - syslog(LOG_NOTICE, "krb_rd_req: (%s)", krb_err_txt[kerror]); - dest_tkt(); - return (1); - } - /* failed for some other reason */ - warnx("unable to verify %s ticket: (%s)", VERIFY_SERVICE, - krb_err_txt[kerror]); - syslog(LOG_NOTICE, "couldn't verify %s ticket: %s", VERIFY_SERVICE, - krb_err_txt[kerror]); - dest_tkt(); - return (1); -} - -void -kgettokens(homedir) - char *homedir; -{ - /* buy AFS-tokens for homedir */ - if (k_hasafs()) { - char cell[128]; - k_setpag(); - if (k_afs_cell_of_file(homedir, - cell, sizeof(cell)) == 0) - krb_afslog(cell, 0); - krb_afslog(0, 0); - } -} - -void -kdestroy() -{ - char *file = krbtkfile_env; - int i, fd; - extern int errno; - struct stat statb; - char buf[BUFSIZ]; - - if (k_hasafs()) - k_unlog(); - - if (krbtkfile_env == NULL) - return; - - errno = 0; - if (lstat(file, &statb) < 0) - goto out; - - if (!(statb.st_mode & S_IFREG) -#ifdef notdef - || statb.st_mode & 077 -#endif - ) - goto out; - - if ((fd = open(file, O_RDWR, 0)) < 0) - goto out; - - bzero(buf, sizeof(buf)); - - for (i = 0; i < statb.st_size; i += BUFSIZ) - if (write(fd, buf, BUFSIZ) != BUFSIZ) { - (void) fsync(fd); - (void) close(fd); - goto out; - } - - (void) fsync(fd); - (void) close(fd); - - (void) unlink(file); - -out: - if (errno != 0) return; - - return; -} -#endif |