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/* $Id: kdb_init.c,v 1.2 1995/12/14 08:43:47 tholo Exp $ */
/*-
* Copyright 1987, 1988 by the Student Information Processing Board
* of the Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software
* and its documentation for any purpose and without fee is
* hereby granted, provided that the above copyright notice
* appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation,
* and that the names of M.I.T. and the M.I.T. S.I.P.B. not be
* used in advertising or publicity pertaining to distribution
* of the software without specific, written prior permission.
* M.I.T. and the M.I.T. S.I.P.B. make no representations about
* the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*/
/*
* program to initialize the database, reports error if database file
* already exists.
*/
#include <adm_locl.h>
#include <sys/param.h>
enum ap_op {
NULL_KEY, /* setup null keys */
MASTER_KEY, /* use master key as new key */
RANDOM_KEY /* choose a random key */
};
char *progname;
static des_cblock master_key;
static des_key_schedule master_key_schedule;
/* use a return code to indicate success or failure. check the return */
/* values of the routines called by this routine. */
static int
add_principal(char *name, char *instance, enum ap_op aap_op)
{
Principal principal;
struct tm *tm;
des_cblock new_key;
bzero(&principal, sizeof(principal));
strncpy(principal.name, name, ANAME_SZ);
strncpy(principal.instance, instance, INST_SZ);
switch (aap_op) {
case NULL_KEY:
principal.key_low = 0;
principal.key_high = 0;
break;
case RANDOM_KEY:
#ifdef NOENCRYPTION
bzero(new_key, sizeof(des_cblock));
new_key[0] = 127;
#else
des_new_random_key(&new_key);
#endif
kdb_encrypt_key (&new_key, &new_key, &master_key, master_key_schedule,
DES_ENCRYPT);
bcopy(new_key, &principal.key_low, 4);
bcopy(((long *) new_key) + 1, &principal.key_high, 4);
break;
case MASTER_KEY:
bcopy (master_key, new_key, sizeof (des_cblock));
kdb_encrypt_key (&new_key, &new_key, &master_key, master_key_schedule,
DES_ENCRYPT);
bcopy(new_key, &principal.key_low, 4);
bcopy(((long *) new_key) + 1, &principal.key_high, 4);
break;
}
principal.exp_date = 946702799; /* Happy new century */
strncpy(principal.exp_date_txt, "12/31/99", DATE_SZ);
principal.mod_date = time(0);
tm = k_localtime(&principal.mod_date);
principal.attributes = 0;
principal.max_life = 255;
principal.kdc_key_ver = 1;
principal.key_version = 1;
strncpy(principal.mod_name, "db_creation", ANAME_SZ);
strncpy(principal.mod_instance, "", INST_SZ);
principal.old = 0;
if (kerb_db_put_principal(&principal, 1) != 1)
return -1; /* FAIL */
/* let's play it safe */
bzero (new_key, sizeof (des_cblock));
bzero (&principal.key_low, 4);
bzero (&principal.key_high, 4);
return 0;
}
int
main(int argc, char **argv)
{
char admin[MAXHOSTNAMELEN];
char realm[REALM_SZ], defrealm[REALM_SZ];
char *cp, *dot;
int code;
char *database;
progname = (cp = strrchr(*argv, '/')) ? cp + 1 : *argv;
if (argc > 3) {
fprintf(stderr, "Usage: %s [realm-name] [database-name]\n", argv[0]);
exit(1);
}
if (argc == 3) {
database = argv[2];
--argc;
} else
database = DBM_FILE;
/* Do this first, it'll fail if the database exists */
if ((code = kerb_db_create(database)) != 0) {
fprintf(stderr, "Couldn't create database: %s\n",
strerror(code));
exit(1);
}
kerb_db_set_name(database);
if (argc == 2)
strncpy(realm, argv[1], REALM_SZ);
else {
if (krb_get_lrealm(defrealm, 1) != KSUCCESS)
strcpy(defrealm, "NONE");
fprintf(stderr, "Realm name [default %s ]: ", defrealm);
if (fgets(realm, sizeof(realm), stdin) == NULL) {
fprintf(stderr, "\nEOF reading realm\n");
exit(1);
}
if ((cp = strchr(realm, '\n')))
*cp = '\0';
if (!*realm) /* no realm given */
strcpy(realm, defrealm);
}
if (!k_isrealm(realm)) {
fprintf(stderr, "%s: Bad kerberos realm name \"%s\"\n",
progname, realm);
exit(1);
}
printf("You will be prompted for the database Master Password.\n");
printf("It is important that you NOT FORGET this password.\n");
fflush(stdout);
if (kdb_get_master_key (TRUE, &master_key, master_key_schedule) != 0) {
fprintf (stderr, "Couldn't read master key.\n");
exit (-1);
}
if (krb_get_admhst(admin, realm, 1) != KSUCCESS) {
fprintf (stderr, "Couldn't get admin server.\n");
exit (-1);
}
if ((dot = strchr(admin, '.')) != NULL)
*dot = '\0';
/* Initialize non shared random sequence */
des_init_random_number_generator(&master_key);
if (
add_principal(KERB_M_NAME, KERB_M_INST, MASTER_KEY) ||
add_principal(KERB_DEFAULT_NAME, KERB_DEFAULT_INST, NULL_KEY) ||
add_principal("krbtgt", realm, RANDOM_KEY) ||
add_principal("changepw", admin, RANDOM_KEY)
) {
fprintf(stderr, "\n%s: couldn't initialize database.\n",
progname);
exit(1);
}
/* play it safe */
bzero (master_key, sizeof (des_cblock));
bzero (master_key_schedule, sizeof (des_key_schedule));
exit(0);
}
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