#include <stdio.h>
#include <k5-int.h>
#include <kdb.h>
#include <kadm5/server_internal.h>
#include <kadm5/admin.h>
#include <adm_proto.h>
#include "kdb5_util.h"
enum ap_op {
NULL_KEY,
MASTER_KEY,
TGT_KEY
};
krb5_key_salt_tuple def_kslist = { ENCTYPE_DES_CBC_CRC, KRB5_KDB_SALTTYPE_NORMAL };
struct realm_info {
krb5_deltat max_life;
krb5_deltat max_rlife;
krb5_timestamp expiration;
krb5_flags flags;
krb5_keyblock *key;
krb5_int32 nkslist;
krb5_key_salt_tuple *kslist;
} rblock = {
KRB5_KDB_MAX_LIFE,
KRB5_KDB_MAX_RLIFE,
KRB5_KDB_EXPIRATION,
KRB5_KDB_DEF_FLAGS,
(krb5_keyblock *) NULL,
1,
&def_kslist
};
struct iterate_args {
krb5_context ctx;
struct realm_info *rblock;
krb5_db_entry *dbentp;
};
static krb5_error_code add_principal
(krb5_context,
krb5_principal,
enum ap_op,
struct realm_info *);
extern krb5_keyblock master_keyblock;
extern krb5_principal master_princ;
krb5_data master_salt;
krb5_data tgt_princ_entries[] = {
{0, KRB5_TGS_NAME_SIZE, KRB5_TGS_NAME},
{0, 0, 0} };
krb5_data db_creator_entries[] = {
{0, sizeof("db_creation")-1, "db_creation"} };
krb5_principal_data tgt_princ = {
0,
{0, 0, 0},
tgt_princ_entries,
2,
KRB5_NT_SRV_INST
};
krb5_principal_data db_create_princ = {
0,
{0, 0, 0},
db_creator_entries,
1,
KRB5_NT_SRV_INST
};
extern char *mkey_password;
extern char *progname;
extern int exit_status;
extern kadm5_config_params global_params;
extern krb5_context util_context;
void kdb5_create(argc, argv)
int argc;
char *argv[];
{
int optchar;
krb5_error_code retval;
char *mkey_fullname;
char *pw_str = 0;
unsigned int pw_size = 0;
int do_stash = 0;
krb5_data pwd, seed;
kdb_log_context *log_ctx;
krb5_kvno mkey_kvno;
while ((optchar = getopt(argc, argv, "s")) != -1) {
switch(optchar) {
case 's':
do_stash++;
break;
case 'h':
if (!add_db_arg("hash=true")) {
com_err(progname, ENOMEM, "while parsing command arguments\n");
exit(1);
}
break;
case '?':
default:
usage();
return;
}
}
rblock.max_life = global_params.max_life;
rblock.max_rlife = global_params.max_rlife;
rblock.expiration = global_params.expiration;
rblock.flags = global_params.flags;
rblock.nkslist = global_params.num_keysalts;
rblock.kslist = global_params.keysalts;
log_ctx = util_context->kdblog_context;
printf ("Loading random data\n");
retval = krb5_c_random_os_entropy (util_context, 1, NULL);
if (retval) {
com_err (progname, retval, "Loading random data");
exit_status++; return;
}
if ((retval = krb5_db_setup_mkey_name(util_context,
global_params.mkey_name,
global_params.realm,
&mkey_fullname, &master_princ))) {
com_err(progname, retval, "while setting up master key name");
exit_status++; return;
}
krb5_princ_set_realm_data(util_context, &db_create_princ, global_params.realm);
krb5_princ_set_realm_length(util_context, &db_create_princ, strlen(global_params.realm));
krb5_princ_set_realm_data(util_context, &tgt_princ, global_params.realm);
krb5_princ_set_realm_length(util_context, &tgt_princ, strlen(global_params.realm));
krb5_princ_component(util_context, &tgt_princ,1)->data = global_params.realm;
krb5_princ_component(util_context, &tgt_princ,1)->length = strlen(global_params.realm);
printf("Initializing database '%s' for realm '%s',\n\
master key name '%s'\n",
global_params.dbname, global_params.realm, mkey_fullname);
if (!mkey_password) {
printf("You will be prompted for the database Master Password.\n");
printf("It is important that you NOT FORGET this password.\n");
fflush(stdout);
pw_size = 1024;
pw_str = malloc(pw_size);
retval = krb5_read_password(util_context, KRB5_KDC_MKEY_1, KRB5_KDC_MKEY_2,
pw_str, &pw_size);
if (retval) {
com_err(progname, retval, "while reading master key from keyboard");
exit_status++; return;
}
mkey_password = pw_str;
}
pwd.data = mkey_password;
pwd.length = strlen(mkey_password);
retval = krb5_principal2salt(util_context, master_princ, &master_salt);
if (retval) {
com_err(progname, retval, "while calculating master key salt");
exit_status++; return;
}
retval = krb5_c_string_to_key(util_context, master_keyblock.enctype,
&pwd, &master_salt, &master_keyblock);
if (retval) {
com_err(progname, retval, "while transforming master key from password");
exit_status++; return;
}
rblock.key = &master_keyblock;
seed.length = master_keyblock.length;
seed.data = master_keyblock.contents;
if ((retval = krb5_c_random_seed(util_context, &seed))) {
com_err(progname, retval, "while initializing random key generator");
exit_status++; return;
}
if ((retval = krb5_db_create(util_context,
db5util_db_args))) {
com_err(progname, retval, "while creating database '%s'",
global_params.dbname);
exit_status++; return;
}
if (log_ctx && log_ctx->iproprole) {
if (retval = ulog_map(util_context, global_params.iprop_logfile,
global_params.iprop_ulogsize, FKCOMMAND,
db5util_db_args)) {
com_err(argv[0], retval,
_("while creating update log"));
exit_status++;
return;
}
(void) memset(log_ctx->ulog, 0, sizeof (kdb_hlog_t));
log_ctx->ulog->kdb_hmagic = KDB_ULOG_HDR_MAGIC;
log_ctx->ulog->db_version_num = KDB_VERSION;
log_ctx->ulog->kdb_state = KDB_STABLE;
log_ctx->ulog->kdb_block = ULOG_BLOCK;
log_ctx->iproprole = IPROP_NULL;
}
if ((retval = add_principal(util_context, master_princ, MASTER_KEY, &rblock)) ||
(retval = add_principal(util_context, &tgt_princ, TGT_KEY, &rblock))) {
(void) krb5_db_fini(util_context);
com_err(progname, retval, "while adding entries to the database");
exit_status++; return;
}
if (global_params.mask & KADM5_CONFIG_KVNO)
mkey_kvno = global_params.kvno;
else
mkey_kvno = 1;
retval = krb5_db_store_master_key(util_context,
global_params.stash_file,
master_princ,
mkey_kvno,
&master_keyblock,
mkey_password);
if (retval) {
com_err(progname, errno, "while storing key");
printf("Warning: couldn't stash master key.\n");
}
(void) krb5_db_fini(util_context);
memset((char *)master_keyblock.contents, 0, master_keyblock.length);
free(master_keyblock.contents);
if (pw_str) {
memset(pw_str, 0, pw_size);
free(pw_str);
}
free(master_salt.data);
if (kadm5_create(&global_params)) {
if (!do_stash) unlink(global_params.stash_file);
exit_status++;
return;
}
if (!do_stash) unlink(global_params.stash_file);
return;
}
static krb5_error_code
tgt_keysalt_iterate(ksent, ptr)
krb5_key_salt_tuple *ksent;
krb5_pointer ptr;
{
krb5_context context;
krb5_error_code kret;
struct iterate_args *iargs;
krb5_keyblock key;
krb5_int32 ind;
krb5_data pwd;
iargs = (struct iterate_args *) ptr;
kret = 0;
context = iargs->ctx;
pwd.data = mkey_password;
pwd.length = strlen(mkey_password);
kret = krb5_c_random_seed(context, &pwd);
if (kret)
return kret;
if (!(kret = krb5_dbe_create_key_data(iargs->ctx, iargs->dbentp))) {
ind = iargs->dbentp->n_key_data-1;
if (!(kret = krb5_c_make_random_key(context, ksent->ks_enctype,
&key))) {
kret = krb5_dbekd_encrypt_key_data(context,
iargs->rblock->key,
&key,
NULL,
1,
&iargs->dbentp->key_data[ind]);
krb5_free_keyblock_contents(context, &key);
}
}
return(kret);
}
static krb5_error_code
add_principal(context, princ, op, pblock)
krb5_context context;
krb5_principal princ;
enum ap_op op;
struct realm_info *pblock;
{
krb5_error_code retval;
krb5_db_entry entry;
krb5_kvno mkey_kvno;
krb5_timestamp now;
struct iterate_args iargs;
int nentries = 1;
memset((char *) &entry, 0, sizeof(entry));
entry.len = KRB5_KDB_V1_BASE_LENGTH;
entry.attributes = pblock->flags;
entry.max_life = pblock->max_life;
entry.max_renewable_life = pblock->max_rlife;
entry.expiration = pblock->expiration;
if ((retval = krb5_copy_principal(context, princ, &entry.princ)))
goto error_out;
if ((retval = krb5_timeofday(context, &now)))
goto error_out;
if ((retval = krb5_dbe_update_mod_princ_data(context, &entry,
now, &db_create_princ)))
goto error_out;
switch (op) {
case MASTER_KEY:
if ((entry.key_data=(krb5_key_data*)malloc(sizeof(krb5_key_data)))
== NULL)
goto error_out;
memset((char *) entry.key_data, 0, sizeof(krb5_key_data));
entry.n_key_data = 1;
if (global_params.mask & KADM5_CONFIG_KVNO)
mkey_kvno = global_params.kvno;
else
mkey_kvno = 1;
entry.attributes |= KRB5_KDB_DISALLOW_ALL_TIX;
if ((retval = krb5_dbekd_encrypt_key_data(context, pblock->key,
&master_keyblock, NULL,
mkey_kvno, entry.key_data)))
return retval;
break;
case TGT_KEY:
iargs.ctx = context;
iargs.rblock = pblock;
iargs.dbentp = &entry;
if ((retval = krb5_keysalt_iterate(pblock->kslist,
pblock->nkslist,
1,
tgt_keysalt_iterate,
(krb5_pointer) &iargs)))
return retval;
break;
case NULL_KEY:
return EOPNOTSUPP;
default:
break;
}
entry.mask = (KADM5_KEY_DATA | KADM5_PRINCIPAL | KADM5_ATTRIBUTES |
KADM5_MAX_LIFE | KADM5_MAX_RLIFE | KADM5_TL_DATA |
KADM5_PRINC_EXPIRE_TIME);
retval = krb5_db_put_principal(context, &entry, &nentries);
error_out:;
krb5_db_free_principal(context, &entry, 1);
return retval;
}