BSD 4_3_Reno release

[unix-history] / usr / src / usr.bin / login / klogin.c

diff --git a/usr/src/usr.bin/login/klogin.c b/usr/src/usr.bin/login/klogin.c
index 442495e..799ec4c 100644 (file)
--- a/usr/src/usr.bin/login/klogin.c
+++ b/usr/src/usr.bin/login/klogin.c
@@ -2,11 +2,23 @@
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *

- * %sccs.include.redist.c%
+ * Redistribution and use in source and binary forms are permitted provided
+ * that: (1) source distributions retain this entire copyright notice and
+ * comment, and (2) distributions including binaries display the following
+ * acknowledgement:  ``This product includes software developed by the
+ * University of California, Berkeley and its contributors'' in the
+ * documentation or other materials provided with the distribution and in
+ * all advertising materials mentioning features or use of this software.
+ * 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

  */
 
 #ifndef lint
  */
 
 #ifndef lint

-static char sccsid[] = "@(#)klogin.c   5.1 (Berkeley) %G%";
+static char sccsid[] = "@(#)klogin.c   5.3 (Berkeley) 6/21/90";

 #endif /* not lint */
 
 #ifdef KERBEROS
 #endif /* not lint */
 
 #ifdef KERBEROS


@@ -25,21 +37,23 @@ static char sccsid[] = "@(#)klogin.c        5.1 (Berkeley) %G%";
 extern int notickets;
 
 /*
 extern int notickets;
 
 /*

- * return 0 on success
- *       1 if Kerberos not around (try local)
- *       2 on failure
+ * 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)

  */
 
  */
 

-klogin(pw, localhost, name, tty)
+klogin(pw, localhost, password)

        struct passwd *pw;
        struct passwd *pw;

-       char *localhost, *name, *tty;
+       char *localhost, *password;

 {
        int kerror;
        AUTH_DAT authdata;
        KTEXT_ST ticket;
        struct hostent *hp;
        unsigned long faddr;
 {
        int kerror;
        AUTH_DAT authdata;
        KTEXT_ST ticket;
        struct hostent *hp;
        unsigned long faddr;

-       char tkfile[MAXPATHLEN], realm[REALM_SZ], savehost[MAXHOSTNAMELEN];
+       char realm[REALM_SZ], savehost[MAXHOSTNAMELEN];
+       char tkt_location[MAXPATHLEN];

 
        /*
         * If we aren't Kerberos-authenticated, try the normal pw file
 
        /*
         * If we aren't Kerberos-authenticated, try the normal pw file


@@ -50,20 +64,16 @@ klogin(pw, localhost, name, tty)
                return(1);
 
        /*
                return(1);
 
        /*

-        * get TGT for local realm; by convention, store tickets in file
-        * associated with tty name, which should be available.
+        * get TGT for local realm
+        * tickets are stored in a file determined by calling tkt_string()

         */
         */

-       (void)sprintf(tkfile, "%s_%s", TKT_ROOT, tty);
-
-       if (setenv("KRBTKFILE", tkfile, 1) < 0) {
-               kerror = INTK_ERR;
-               syslog(LOG_ERR, "couldn't set tkfile environ");
-       } else {
-               (void)unlink(tkfile);
-               kerror = krb_get_pw_in_tkt(PRINCIPAL_NAME, PRINCIPAL_INST,
-                   realm, INITIAL_TICKET, realm, DEFAULT_TKT_LIFE, name);
-       }

 
 

+       (void)sprintf(tkt_location, "%s%d", TKT_ROOT, pw->pw_uid);
+       (void)krb_set_tkt_string(tkt_location);
+       (void)dest_tkt();
+
+       kerror = krb_get_pw_in_tkt(PRINCIPAL_NAME, PRINCIPAL_INST,
+                   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.
        /*
         * 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.


@@ -74,24 +84,25 @@ klogin(pw, localhost, name, tty)
         *         return value of RD_AP_UNDEC from krb_rd_req().
         */
        if (kerror != INTK_OK) {
         *         return value of RD_AP_UNDEC from krb_rd_req().
         */
        if (kerror != INTK_OK) {

-               (void)unlink(tkfile);
+               dest_tkt();

                if (kerror != INTK_BADPW && kerror != KDC_PR_UNKNOWN)
                        syslog(LOG_ERR, "Kerberos intkt error: %s",
                            krb_err_txt[kerror]);
                if (kerror != INTK_BADPW && kerror != KDC_PR_UNKNOWN)
                        syslog(LOG_ERR, "Kerberos intkt error: %s",
                            krb_err_txt[kerror]);

-               return(2);
+               return(1);

        }
 
        }
 

-       if (chown(tkfile, pw->pw_uid, pw->pw_gid) < 0)
-               syslog(LOG_ERR, "chown tkfile: %m");
+       if (chown(TKT_FILE, pw->pw_uid, pw->pw_gid) < 0)
+               syslog(LOG_ERR, "chown tkfile (%s): %m", TKT_FILE);

 
        (void)strncpy(savehost, krb_get_phost(localhost), sizeof(savehost));
        savehost[sizeof(savehost)-1] = NULL;
 
        (void)strncpy(savehost, krb_get_phost(localhost), sizeof(savehost));
        savehost[sizeof(savehost)-1] = NULL;

-       kerror = krb_mk_req(&ticket, VERIFY_SERVICE, savehost, realm, 33);

 
        /*
         * if the "VERIFY_SERVICE" doesn't exist in the KDC for this host,
         * still allow login with tickets, but log the error condition.
         */
 
        /*
         * 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)",
                    krb_err_txt[kerror]);
        if (kerror == KDC_PR_UNKNOWN) {
                syslog(LOG_NOTICE, "warning: TGT not verified (%s)",
                    krb_err_txt[kerror]);


@@ -104,30 +115,37 @@ klogin(pw, localhost, name, tty)
                syslog(LOG_NOTICE, "unable to use TGT: (%s)",
                    krb_err_txt[kerror]);
                dest_tkt();
                syslog(LOG_NOTICE, "unable to use TGT: (%s)",
                    krb_err_txt[kerror]);
                dest_tkt();

-               return(2);
+               return(1);

        }
 
        if (!(hp = gethostbyname(localhost))) {
                syslog(LOG_ERR, "couldn't get local host address");
        }
 
        if (!(hp = gethostbyname(localhost))) {
                syslog(LOG_ERR, "couldn't get local host address");

-               return(2);
+               dest_tkt();
+               return(1);

        }
        }

+

        bcopy((void *)hp->h_addr, (void *)&faddr, sizeof(faddr));
 
        kerror = krb_rd_req(&ticket, VERIFY_SERVICE, savehost, faddr,
            &authdata, "");
        bcopy((void *)hp->h_addr, (void *)&faddr, sizeof(faddr));
 
        kerror = krb_rd_req(&ticket, VERIFY_SERVICE, savehost, faddr,
            &authdata, "");

+

        if (kerror == KSUCCESS) {
                notickets = 0;
                return(0);
        }
        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)\n", krb_err_txt[kerror]);
        if (kerror = RD_AP_UNDEC) {
                syslog(LOG_NOTICE, "krb_rd_req: (%s)\n", krb_err_txt[kerror]);

-               notickets = 0;
-               return(0);
+               dest_tkt();
+               return(1);

        }
        }

+       /* failed for some other reason */

        (void)printf("unable to verify %s ticket: (%s)\n", VERIFY_SERVICE,
            krb_err_txt[kerror]);
        syslog(LOG_NOTICE, "couldn't verify %s ticket: %s", VERIFY_SERVICE,
            krb_err_txt[kerror]);
        (void)printf("unable to verify %s ticket: (%s)\n", VERIFY_SERVICE,
            krb_err_txt[kerror]);
        syslog(LOG_NOTICE, "couldn't verify %s ticket: %s", VERIFY_SERVICE,
            krb_err_txt[kerror]);

-       return(2);
+       dest_tkt();
+       return(1);

 }
 #endif
 }
 #endif