/* Parent process: iterate over the KDB, using a callback that synchronizes
* with the locking child. */
static int
iterator(struct cb_arg *cb_arg, char **db_args, pid_t child)
{
krb5_error_code retval;
krb5_context ctx;
retval = krb5_init_context_profile(NULL, KRB5_INIT_CONTEXT_KDC, &ctx);
if (retval)
goto cleanup;
retval = krb5_db_open(ctx, db_args,
KRB5_KDB_OPEN_RW | KRB5_KDB_SRV_TYPE_ADMIN);
if (retval)
goto cleanup;
retval = krb5_db_iterate(ctx, NULL, cb, cb_arg, 0);
if (retval)
goto cleanup;
retval = krb5_db_fini(ctx);
cleanup:
krb5_free_context(ctx);
if (retval) {
com_err("iterator", retval, "");
kill(child, SIGTERM);
exit(1);
}
return retval;
}
static void
finish_realm(kdc_realm_t *rdp)
{
if (rdp->realm_name)
free(rdp->realm_name);
if (rdp->realm_mpname)
free(rdp->realm_mpname);
if (rdp->realm_stash)
free(rdp->realm_stash);
if (rdp->realm_listen)
free(rdp->realm_listen);
if (rdp->realm_tcp_listen)
free(rdp->realm_tcp_listen);
if (rdp->realm_keytab)
krb5_kt_close(rdp->realm_context, rdp->realm_keytab);
if (rdp->realm_hostbased)
free(rdp->realm_hostbased);
if (rdp->realm_no_referral)
free(rdp->realm_no_referral);
if (rdp->realm_context) {
if (rdp->realm_mprinc)
krb5_free_principal(rdp->realm_context, rdp->realm_mprinc);
if (rdp->realm_mkey.length && rdp->realm_mkey.contents) {
/* XXX shouldn't memset be zap for safety? */
memset(rdp->realm_mkey.contents, 0, rdp->realm_mkey.length);
free(rdp->realm_mkey.contents);
}
krb5_db_fini(rdp->realm_context);
if (rdp->realm_tgsprinc)
krb5_free_principal(rdp->realm_context, rdp->realm_tgsprinc);
krb5_free_context(rdp->realm_context);
}
memset(rdp, 0, sizeof(*rdp));
free(rdp);
}
static void
finish_realm(kdc_realm_t *rdp)
{
if (rdp->realm_dbname)
free(rdp->realm_dbname);
if (rdp->realm_mpname)
free(rdp->realm_mpname);
if (rdp->realm_stash)
free(rdp->realm_stash);
if (rdp->realm_ports)
free(rdp->realm_ports);
if (rdp->realm_tcp_ports)
free(rdp->realm_tcp_ports);
if (rdp->realm_keytab)
krb5_kt_close(rdp->realm_context, rdp->realm_keytab);
if (rdp->realm_context) {
if (rdp->realm_mprinc)
krb5_free_principal(rdp->realm_context, rdp->realm_mprinc);
if (rdp->realm_mkey.length && rdp->realm_mkey.contents) {
memset(rdp->realm_mkey.contents, 0, rdp->realm_mkey.length);
free(rdp->realm_mkey.contents);
}
krb5_db_fini(rdp->realm_context);
if (rdp->realm_tgsprinc)
krb5_free_principal(rdp->realm_context, rdp->realm_tgsprinc);
krb5_free_context(rdp->realm_context);
}
memset((char *) rdp, 0, sizeof(*rdp));
free(rdp);
}
krb5_error_code kdb_init_master(kadm5_server_handle_t handle,
char *r, int from_keyboard)
{
int ret = 0;
char *realm;
krb5_boolean from_kbd = FALSE;
krb5_kvno mkvno = IGNORE_VNO;
if (from_keyboard)
from_kbd = TRUE;
if (r == NULL) {
if ((ret = krb5_get_default_realm(handle->context, &realm)))
return ret;
} else {
realm = r;
}
if ((ret = krb5_db_setup_mkey_name(handle->context,
handle->params.mkey_name,
realm, NULL, &master_princ)))
goto done;
master_keyblock.enctype = handle->params.enctype;
/*
* Fetch the local mkey, may not be the latest but that's okay because we
* really want the list of all mkeys and those can be retrieved with any
* valid mkey.
*/
ret = krb5_db_fetch_mkey(handle->context, master_princ,
master_keyblock.enctype, from_kbd,
FALSE /* only prompt once */,
handle->params.stash_file,
&mkvno /* get the kvno of the returned mkey */,
NULL /* I'm not sure about this,
but it's what the kdc does --marc */,
&master_keyblock);
if (ret)
goto done;
if ((ret = krb5_db_fetch_mkey_list(handle->context, master_princ,
&master_keyblock))) {
krb5_db_fini(handle->context);
return (ret);
}
done:
if (r == NULL)
free(realm);
return(ret);
}
krb5_error_code kdb_init_master(kadm5_server_handle_t handle,
char *r, int from_keyboard)
{
int ret = 0;
char *realm;
krb5_boolean from_kbd = FALSE;
if (from_keyboard)
from_kbd = TRUE;
if (r == NULL) {
if ((ret = krb5_get_default_realm(handle->context, &realm)))
return ret;
} else {
realm = r;
}
if ((ret = krb5_db_setup_mkey_name(handle->context,
handle->params.mkey_name,
realm, NULL, &master_princ)))
goto done;
/* Solaris Kerberos */
#if 0
master_keyblock.enctype = handle->params.enctype;
#endif
/* Solaris Kerberos */
ret = krb5_db_fetch_mkey(handle->context, master_princ,
handle->params.enctype, from_kbd,
FALSE /* only prompt once */,
handle->params.stash_file,
NULL /* I'm not sure about this,
but it's what the kdc does --marc */,
&handle->master_keyblock);
if (ret)
goto done;
/* Solaris Kerberos */
if ((ret = krb5_db_verify_master_key(handle->context, master_princ,
&handle->master_keyblock))) {
krb5_db_fini(handle->context);
return ret;
}
done:
if (r == NULL)
free(realm);
return(ret);
}
krb5_error_code kdb_init_master(kadm5_server_handle_t handle,
char *r, int from_keyboard)
{
int ret = 0;
char *realm;
krb5_keyblock tmk;
if (r == NULL) {
if ((ret = krb5_get_default_realm(handle->context, &realm)))
return ret;
} else {
realm = r;
}
if ((ret = krb5_db_setup_mkey_name(handle->context,
handle->params.mkey_name,
realm, NULL, &master_princ)))
goto done;
if (ret = krb5_db_fetch_mkey(handle->context, master_princ,
handle->params.enctype,
from_keyboard,
FALSE /* only prompt once */,
handle->params.stash_file,
NULL /* I'm not sure about this,
but it's what the kdc does --marc */,
&handle->master_keyblock))
goto done;
if ((ret = krb5_db_init(handle->context)) != KSUCCESS)
goto done;
if ((ret = krb5_db_verify_master_key(handle->context, master_princ,
&handle->master_keyblock))) {
krb5_db_fini(handle->context);
return ret;
}
done:
if (r == NULL)
free(realm);
return(ret);
}
/* Child process: acquire and release a write lock on the KDB, synchronized
* with parent. */
static int
locker(int inpipe, int outpipe, char **db_args)
{
krb5_error_code retval;
unsigned char c = '\0';
krb5_context ctx;
retval = krb5_init_context_profile(NULL, KRB5_INIT_CONTEXT_KDC, &ctx);
if (retval)
goto cleanup;
retval = krb5_db_open(ctx, db_args,
KRB5_KDB_OPEN_RW | KRB5_KDB_SRV_TYPE_ADMIN);
if (retval)
goto cleanup;
if (syncpair_wr("first", inpipe, outpipe, &c) < 0) {
retval = errno;
goto cleanup;
}
printf("locker: acquiring lock...\n");
retval = krb5_db_lock(ctx, KRB5_DB_LOCKMODE_EXCLUSIVE);
if (retval)
goto cleanup;
printf("locker: acquired lock\n");
if (syncpair_wr("second", inpipe, outpipe, &c) < 0) {
retval = errno;
goto cleanup;
}
krb5_db_unlock(ctx);
printf("locker: released lock\n");
printf("locker: writing final sync byte\n");
if (write(outpipe, &c, 1) < 0) {
retval = errno;
goto cleanup;
}
retval = krb5_db_fini(ctx);
cleanup:
if (retval)
com_err("locker", retval, "");
krb5_free_context(ctx);
exit(retval != 0);
}
int
main()
{
krb5_db_entry *ent;
osa_policy_ent_t pol;
krb5_pa_data **e_data;
const char *status;
char *defrealm;
int count;
CHECK(krb5_init_context_profile(NULL, KRB5_INIT_CONTEXT_KDC, &ctx));
/* Currently necessary for krb5_db_open to work. */
CHECK(krb5_get_default_realm(ctx, &defrealm));
/* If we can, revert to requiring all entries match sample_princ in
* iter_princ_handler */
CHECK_COND(krb5_db_inited(ctx) != 0);
CHECK(krb5_db_create(ctx, NULL));
CHECK(krb5_db_inited(ctx));
CHECK(krb5_db_fini(ctx));
CHECK_COND(krb5_db_inited(ctx) != 0);
CHECK_COND(krb5_db_inited(ctx) != 0);
CHECK(krb5_db_open(ctx, NULL, KRB5_KDB_OPEN_RW | KRB5_KDB_SRV_TYPE_ADMIN));
CHECK(krb5_db_inited(ctx));
/* Manipulate a policy, leaving it in place at the end. */
CHECK_COND(krb5_db_put_policy(ctx, &sample_policy) != 0);
CHECK_COND(krb5_db_delete_policy(ctx, polname) != 0);
CHECK_COND(krb5_db_get_policy(ctx, polname, &pol) == KRB5_KDB_NOENTRY);
CHECK(krb5_db_create_policy(ctx, &sample_policy));
CHECK_COND(krb5_db_create_policy(ctx, &sample_policy) != 0);
CHECK(krb5_db_get_policy(ctx, polname, &pol));
check_policy(pol);
pol->pw_min_length--;
CHECK(krb5_db_put_policy(ctx, pol));
krb5_db_free_policy(ctx, pol);
CHECK(krb5_db_get_policy(ctx, polname, &pol));
CHECK_COND(pol->pw_min_length == sample_policy.pw_min_length - 1);
krb5_db_free_policy(ctx, pol);
CHECK(krb5_db_delete_policy(ctx, polname));
CHECK_COND(krb5_db_put_policy(ctx, &sample_policy) != 0);
CHECK_COND(krb5_db_delete_policy(ctx, polname) != 0);
CHECK_COND(krb5_db_get_policy(ctx, polname, &pol) == KRB5_KDB_NOENTRY);
CHECK(krb5_db_create_policy(ctx, &sample_policy));
count = 0;
CHECK(krb5_db_iter_policy(ctx, NULL, iter_pol_handler, &count));
CHECK_COND(count == 1);
/* Create a principal. */
CHECK_COND(krb5_db_delete_principal(ctx, &sample_princ) ==
KRB5_KDB_NOENTRY);
CHECK_COND(krb5_db_get_principal(ctx, &xrealm_princ, 0, &ent) ==
KRB5_KDB_NOENTRY);
CHECK(krb5_db_put_principal(ctx, &sample_entry));
/* Putting again will fail with LDAP (due to KADM5_PRINCIPAL in mask)
* but succeed with DB2, so don't check the result. */
(void)krb5_db_put_principal(ctx, &sample_entry);
/* But it should succeed in both back ends with KADM5_LOAD in mask. */
sample_entry.mask |= KADM5_LOAD;
CHECK(krb5_db_put_principal(ctx, &sample_entry));
sample_entry.mask &= ~KADM5_LOAD;
/* Fetch and compare the added principal. */
CHECK(krb5_db_get_principal(ctx, &sample_princ, 0, &ent));
check_entry(ent);
/* We can't set up a successful allowed-to-delegate check through existing
* APIs yet, but we can make a failed check. */
CHECK_COND(krb5_db_check_allowed_to_delegate(ctx, &sample_princ, ent,
&sample_princ) != 0);
/* Exercise lockout code. */
/* Policy params: max_fail 2, failcnt_interval 60, lockout_duration 120 */
/* Initial state: last_success 1, last_failed 5, fail_auth_count 2,
* last admin unlock 6 */
/* Check succeeds due to last admin unlock. */
CHECK(krb5_db_check_policy_as(ctx, NULL, ent, ent, 7, &status, &e_data));
/* Failure count resets to 1 due to last admin unlock. */
sim_preauth(8, FALSE, &ent);
CHECK_COND(ent->fail_auth_count == 1 && ent->last_failed == 8);
/* Failure count resets to 1 due to failcnt_interval */
sim_preauth(70, FALSE, &ent);
CHECK_COND(ent->fail_auth_count == 1 && ent->last_failed == 70);
/* Failure count resets to 0 due to successful preauth. */
sim_preauth(75, TRUE, &ent);
CHECK_COND(ent->fail_auth_count == 0 && ent->last_success == 75);
/* Failure count increments to 2 and stops incrementing. */
sim_preauth(80, FALSE, &ent);
CHECK_COND(ent->fail_auth_count == 1 && ent->last_failed == 80);
sim_preauth(100, FALSE, &ent);
CHECK_COND(ent->fail_auth_count == 2 && ent->last_failed == 100);
sim_preauth(110, FALSE, &ent);
CHECK_COND(ent->fail_auth_count == 2 && ent->last_failed == 100);
/* Check fails due to reaching maximum failure count. */
CHECK_COND(krb5_db_check_policy_as(ctx, NULL, ent, ent, 170, &status,
&e_data) == KRB5KDC_ERR_CLIENT_REVOKED);
/* Check succeeds after lockout_duration has passed. */
CHECK(krb5_db_check_policy_as(ctx, NULL, ent, ent, 230, &status, &e_data));
/* Failure count resets to 1 on next failure. */
sim_preauth(240, FALSE, &ent);
CHECK_COND(ent->fail_auth_count == 1 && ent->last_failed == 240);
/* Exercise LDAP code to clear a policy reference and to set the key
* data on an existing principal. */
CHECK(krb5_dbe_update_tl_data(ctx, ent, &tl_no_policy));
ent->mask = KADM5_POLICY_CLR | KADM5_KEY_DATA;
CHECK(krb5_db_put_principal(ctx, ent));
CHECK(krb5_db_delete_policy(ctx, polname));
/* Put the modified entry again (with KDB_TL_USER_INFO tl-data for LDAP) as
* from a load operation. */
ent->mask = (sample_entry.mask & ~KADM5_POLICY) | KADM5_LOAD;
CHECK(krb5_db_put_principal(ctx, ent));
/* Exercise LDAP code to create a new principal at a DN from
* KDB_TL_USER_INFO tl-data. */
CHECK(krb5_db_delete_principal(ctx, &sample_princ));
CHECK(krb5_db_put_principal(ctx, ent));
krb5_db_free_principal(ctx, ent);
/* Exercise principal iteration code. */
count = 0;
CHECK(krb5_db_iterate(ctx, "xy*", iter_princ_handler, &count));
CHECK_COND(count == 1);
CHECK(krb5_db_fini(ctx));
CHECK_COND(krb5_db_inited(ctx) != 0);
/* It might be nice to exercise krb5_db_destroy here, but the LDAP module
* doesn't support it. */
krb5_free_default_realm(ctx, defrealm);
krb5_free_context(ctx);
return 0;
}
void
kdb5_update_princ_encryption(int argc, char *argv[])
{
struct update_enc_mkvno data = { 0 };
char *name_pattern = NULL;
int force = 0;
int optchar;
krb5_error_code retval;
krb5_actkvno_node *actkvno_list = 0;
krb5_db_entry *master_entry;
char *mkey_fullname = 0;
#ifdef BSD_REGEXPS
char *msg;
#endif
char *regexp = NULL;
krb5_keyblock *act_mkey;
krb5_keylist_node *master_keylist = krb5_db_mkey_list_alias(util_context);
while ((optchar = getopt(argc, argv, "fnv")) != -1) {
switch (optchar) {
case 'f':
force = 1;
break;
case 'n':
data.dry_run = 1;
break;
case 'v':
data.verbose = 1;
break;
case '?':
case ':':
default:
usage();
}
}
if (argv[optind] != NULL) {
name_pattern = argv[optind];
if (argv[optind+1] != NULL)
usage();
}
retval = krb5_unparse_name(util_context, master_princ, &mkey_fullname);
if (retval) {
com_err(progname, retval, _("while formatting master principal name"));
exit_status++;
goto cleanup;
}
if (master_keylist == NULL) {
com_err(progname, retval, _("master keylist not initialized"));
exit_status++;
goto cleanup;
}
/* The glob_to_regexp code only cares if the "realm" parameter is
NULL or not; the string data is irrelevant. */
if (name_pattern == NULL)
name_pattern = "*";
if (glob_to_regexp(name_pattern, "hi", ®exp) != 0) {
com_err(progname, ENOMEM,
_("converting glob pattern '%s' to regular expression"),
name_pattern);
exit_status++;
goto cleanup;
}
if (
#ifdef SOLARIS_REGEXPS
((data.expbuf = compile(regexp, NULL, NULL)) == NULL)
#endif
#ifdef POSIX_REGEXPS
((regcomp(&data.preg, regexp, REG_NOSUB)) != 0)
#endif
#ifdef BSD_REGEXPS
((msg = (char *) re_comp(regexp)) != NULL)
#endif
) {
/* XXX syslog msg or regerr(regerrno) */
com_err(progname, 0, _("error compiling converted regexp '%s'"),
regexp);
exit_status++;
goto cleanup;
}
retval = krb5_db_get_principal(util_context, master_princ, 0,
&master_entry);
if (retval != 0) {
com_err(progname, retval, _("while getting master key principal %s"),
mkey_fullname);
exit_status++;
goto cleanup;
}
retval = krb5_dbe_lookup_actkvno(util_context, master_entry, &actkvno_list);
if (retval != 0) {
com_err(progname, retval, _("while looking up active kvno list"));
exit_status++;
goto cleanup;
}
retval = krb5_dbe_find_act_mkey(util_context, actkvno_list, &new_mkvno,
&act_mkey);
if (retval) {
com_err(progname, retval, _("while looking up active master key"));
exit_status++;
goto cleanup;
}
new_master_keyblock = *act_mkey;
if (!force &&
!data.dry_run &&
!are_you_sure(_("Re-encrypt all keys not using master key vno %u?"),
new_mkvno)) {
printf(_("OK, doing nothing.\n"));
exit_status++;
goto cleanup;
}
if (data.verbose) {
if (data.dry_run) {
printf(_("Principals whose keys WOULD BE re-encrypted to master "
"key vno %u:\n"), new_mkvno);
} else {
printf(_("Principals whose keys are being re-encrypted to master "
"key vno %u if necessary:\n"), new_mkvno);
}
}
if (!data.dry_run) {
/* Grab a write lock so we don't have to upgrade to a write lock and
* reopen the DB while iterating. */
retval = krb5_db_lock(util_context, KRB5_DB_LOCKMODE_EXCLUSIVE);
if (retval != 0 && retval != KRB5_PLUGIN_OP_NOTSUPP) {
com_err(progname, retval, _("trying to lock database"));
exit_status++;
}
}
retval = krb5_db_iterate(util_context, name_pattern,
update_princ_encryption_1, &data);
/* If exit_status is set, then update_princ_encryption_1 already
printed a message. */
if (retval != 0 && exit_status == 0) {
com_err(progname, retval, _("trying to process principal database"));
exit_status++;
}
if (!data.dry_run)
(void)krb5_db_unlock(util_context);
(void) krb5_db_fini(util_context);
if (data.dry_run) {
printf(_("%u principals processed: %u would be updated, %u already "
"current\n"),
data.re_match_count, data.updated, data.already_current);
} else {
printf(_("%u principals processed: %u updated, %u already current\n"),
data.re_match_count, data.updated, data.already_current);
}
cleanup:
free(regexp);
memset(&new_master_keyblock, 0, sizeof(new_master_keyblock));
krb5_free_unparsed_name(util_context, mkey_fullname);
krb5_dbe_free_actkvno_list(util_context, actkvno_list);
}
void
kdb5_list_mkeys(int argc, char *argv[])
{
krb5_error_code retval;
char *mkey_fullname = NULL, *output_str = NULL, enctype[BUFSIZ];
krb5_kvno act_kvno;
krb5_timestamp act_time;
krb5_actkvno_node *actkvno_list = NULL, *cur_actkvno;
krb5_db_entry *master_entry;
krb5_keylist_node *cur_kb_node;
krb5_keyblock *act_mkey;
krb5_keylist_node *master_keylist = krb5_db_mkey_list_alias(util_context);
if (master_keylist == NULL) {
com_err(progname, 0, _("master keylist not initialized"));
exit_status++;
return;
}
/* assemble & parse the master key name */
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;
}
retval = krb5_db_get_principal(util_context, master_princ, 0,
&master_entry);
if (retval != 0) {
com_err(progname, retval, _("while getting master key principal %s"),
mkey_fullname);
exit_status++;
goto cleanup_return;
}
retval = krb5_dbe_lookup_actkvno(util_context, master_entry, &actkvno_list);
if (retval != 0) {
com_err(progname, retval, _("while looking up active kvno list"));
exit_status++;
goto cleanup_return;
}
if (actkvno_list == NULL) {
act_kvno = master_entry->key_data[0].key_data_kvno;
} else {
retval = krb5_dbe_find_act_mkey(util_context, actkvno_list, &act_kvno,
&act_mkey);
if (retval == KRB5_KDB_NOACTMASTERKEY) {
/* Maybe we went through a time warp, and the only keys
with activation dates have them set in the future? */
com_err(progname, retval, "");
/* Keep going. */
act_kvno = -1;
} else if (retval != 0) {
com_err(progname, retval, _("while looking up active master key"));
exit_status++;
goto cleanup_return;
}
}
printf("Master keys for Principal: %s\n", mkey_fullname);
for (cur_kb_node = master_keylist; cur_kb_node != NULL;
cur_kb_node = cur_kb_node->next) {
if ((retval = krb5_enctype_to_name(cur_kb_node->keyblock.enctype,
FALSE, enctype, sizeof(enctype)))) {
com_err(progname, retval, _("while getting enctype description"));
exit_status++;
goto cleanup_return;
}
if (actkvno_list != NULL) {
act_time = -1; /* assume actkvno entry not found */
for (cur_actkvno = actkvno_list; cur_actkvno != NULL;
cur_actkvno = cur_actkvno->next) {
if (cur_actkvno->act_kvno == cur_kb_node->kvno) {
act_time = cur_actkvno->act_time;
break;
}
}
} else {
/*
* mkey princ doesn't have an active knvo list so assume the current
* key is active now
*/
if ((retval = krb5_timeofday(util_context, &act_time))) {
com_err(progname, retval, _("while getting current time"));
exit_status++;
goto cleanup_return;
}
}
if (cur_kb_node->kvno == act_kvno) {
/* * indicates kvno is currently active */
retval = asprintf(&output_str,
_("KVNO: %d, Enctype: %s, Active on: %s *\n"),
cur_kb_node->kvno, enctype, strdate(act_time));
} else {
if (act_time != -1) {
retval = asprintf(&output_str,
_("KVNO: %d, Enctype: %s, Active on: %s\n"),
cur_kb_node->kvno, enctype, strdate(act_time));
} else {
retval = asprintf(&output_str,
_("KVNO: %d, Enctype: %s, No activate time "
"set\n"), cur_kb_node->kvno, enctype);
}
}
if (retval == -1) {
com_err(progname, ENOMEM, _("asprintf could not allocate enough "
"memory to hold output"));
exit_status++;
goto cleanup_return;
}
printf("%s", output_str);
free(output_str);
output_str = NULL;
}
cleanup_return:
/* clean up */
(void) krb5_db_fini(util_context);
krb5_free_unparsed_name(util_context, mkey_fullname);
free(output_str);
krb5_free_principal(util_context, master_princ);
krb5_dbe_free_actkvno_list(util_context, actkvno_list);
return;
}
void
kdb5_use_mkey(int argc, char *argv[])
{
krb5_error_code retval;
char *mkey_fullname = NULL;
krb5_kvno use_kvno;
krb5_timestamp now, start_time;
krb5_actkvno_node *actkvno_list = NULL, *new_actkvno = NULL,
*prev_actkvno, *cur_actkvno;
krb5_db_entry *master_entry;
krb5_keylist_node *keylist_node;
krb5_boolean inserted = FALSE;
krb5_keylist_node *master_keylist = krb5_db_mkey_list_alias(util_context);
memset(&master_princ, 0, sizeof(master_princ));
if (argc < 2 || argc > 3) {
/* usage calls exit */
usage();
}
use_kvno = atoi(argv[1]);
if (use_kvno == 0) {
com_err(progname, EINVAL, _("0 is an invalid KVNO value"));
exit_status++;
return;
} else {
/* verify use_kvno is valid */
for (keylist_node = master_keylist; keylist_node != NULL;
keylist_node = keylist_node->next) {
if (use_kvno == keylist_node->kvno)
break;
}
if (!keylist_node) {
com_err(progname, EINVAL, _("%d is an invalid KVNO value"),
use_kvno);
exit_status++;
return;
}
}
if ((retval = krb5_timeofday(util_context, &now))) {
com_err(progname, retval, _("while getting current time"));
exit_status++;
return;
}
if (argc == 3) {
time_t t = get_date(argv[2]);
if (t == -1) {
com_err(progname, 0, _("could not parse date-time string '%s'"),
argv[2]);
exit_status++;
return;
} else
start_time = (krb5_timestamp) t;
} else {
start_time = now;
}
/*
* Need to:
*
* 1. get mkey princ
* 2. get krb5_actkvno_node list
* 3. add use_kvno to actkvno list (sorted in right spot)
* 4. update mkey princ's tl data
* 5. put mkey princ.
*/
/* assemble & parse the master key name */
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++;
goto cleanup_return;
}
retval = krb5_db_get_principal(util_context, master_princ, 0,
&master_entry);
if (retval != 0) {
com_err(progname, retval, _("while getting master key principal %s"),
mkey_fullname);
exit_status++;
goto cleanup_return;
}
retval = krb5_dbe_lookup_actkvno(util_context, master_entry, &actkvno_list);
if (retval != 0) {
com_err(progname, retval,
_("while looking up active version of master key"));
exit_status++;
goto cleanup_return;
}
/*
* If an entry already exists with the same kvno either delete it or if it's
* the only entry, just set its active time.
*/
for (prev_actkvno = NULL, cur_actkvno = actkvno_list;
cur_actkvno != NULL;
prev_actkvno = cur_actkvno, cur_actkvno = cur_actkvno->next) {
if (cur_actkvno->act_kvno == use_kvno) {
/* delete it */
if (prev_actkvno) {
prev_actkvno->next = cur_actkvno->next;
cur_actkvno->next = NULL;
krb5_dbe_free_actkvno_list(util_context, cur_actkvno);
} else {
if (cur_actkvno->next) {
/* delete it from front of list */
actkvno_list = cur_actkvno->next;
cur_actkvno->next = NULL;
krb5_dbe_free_actkvno_list(util_context, cur_actkvno);
} else {
/* There's only one entry, go ahead and change the time */
cur_actkvno->act_time = start_time;
inserted = TRUE;
}
}
break;
}
}
if (!inserted) {
/* alloc enough space to hold new and existing key_data */
new_actkvno = (krb5_actkvno_node *) malloc(sizeof(krb5_actkvno_node));
if (new_actkvno == NULL) {
com_err(progname, ENOMEM, _("while adding new master key"));
exit_status++;
goto cleanup_return;
}
memset(new_actkvno, 0, sizeof(krb5_actkvno_node));
new_actkvno->act_kvno = use_kvno;
new_actkvno->act_time = start_time;
/* insert new act kvno node */
if (actkvno_list == NULL) {
/* new actkvno is the list */
actkvno_list = new_actkvno;
} else {
for (prev_actkvno = NULL, cur_actkvno = actkvno_list;
cur_actkvno != NULL;
prev_actkvno = cur_actkvno, cur_actkvno = cur_actkvno->next) {
if (new_actkvno->act_time < cur_actkvno->act_time) {
if (prev_actkvno) {
prev_actkvno->next = new_actkvno;
new_actkvno->next = cur_actkvno;
} else {
new_actkvno->next = actkvno_list;
actkvno_list = new_actkvno;
}
break;
} else if (cur_actkvno->next == NULL) {
/* end of line, just add new node to end of list */
cur_actkvno->next = new_actkvno;
break;
}
}
}
}
if (actkvno_list->act_time > now) {
com_err(progname, EINVAL,
_("there must be one master key currently active"));
exit_status++;
goto cleanup_return;
}
if ((retval = krb5_dbe_update_actkvno(util_context, master_entry,
actkvno_list))) {
com_err(progname, retval,
_("while updating actkvno data for master principal entry"));
exit_status++;
goto cleanup_return;
}
if ((retval = krb5_dbe_update_mod_princ_data(util_context, master_entry,
now, master_princ))) {
com_err(progname, retval, _("while updating the master key principal "
"modification time"));
exit_status++;
goto cleanup_return;
}
if ((retval = krb5_db_put_principal(util_context, master_entry))) {
(void) krb5_db_fini(util_context);
com_err(progname, retval,
_("while adding master key entry to the database"));
exit_status++;
goto cleanup_return;
}
cleanup_return:
/* clean up */
(void) krb5_db_fini(util_context);
krb5_free_unparsed_name(util_context, mkey_fullname);
krb5_free_principal(util_context, master_princ);
krb5_dbe_free_actkvno_list(util_context, actkvno_list);
return;
}
void
kdb5_add_mkey(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;
krb5_kvno new_mkey_kvno;
krb5_keyblock new_mkeyblock;
krb5_enctype new_master_enctype = ENCTYPE_UNKNOWN;
char *new_mkey_password;
krb5_db_entry *master_entry;
krb5_timestamp now;
/*
* The command table entry for this command causes open_db_and_mkey() to be
* called first to open the KDB and get the current mkey.
*/
memset(&new_mkeyblock, 0, sizeof(new_mkeyblock));
memset(&master_princ, 0, sizeof(master_princ));
master_salt.data = NULL;
while ((optchar = getopt(argc, argv, "e:s")) != -1) {
switch(optchar) {
case 'e':
if (krb5_string_to_enctype(optarg, &new_master_enctype)) {
com_err(progname, EINVAL, _("%s is an invalid enctype"),
optarg);
exit_status++;
return;
}
break;
case 's':
do_stash++;
break;
case '?':
default:
usage();
return;
}
}
if (new_master_enctype == ENCTYPE_UNKNOWN)
new_master_enctype = global_params.enctype;
/* assemble & parse the master key name */
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;
}
retval = krb5_db_get_principal(util_context, master_princ, 0,
&master_entry);
if (retval != 0) {
com_err(progname, retval, _("while getting master key principal %s"),
mkey_fullname);
exit_status++;
goto cleanup_return;
}
printf(_("Creating new master key for master key principal '%s'\n"),
mkey_fullname);
printf(_("You will be prompted for a new 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);
if (pw_str == NULL) {
com_err(progname, ENOMEM, _("while creating new master key"));
exit_status++;
goto cleanup_return;
}
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 new master key from keyboard"));
exit_status++;
goto cleanup_return;
}
new_mkey_password = pw_str;
pwd.data = new_mkey_password;
pwd.length = strlen(new_mkey_password);
retval = krb5_principal2salt(util_context, master_princ, &master_salt);
if (retval) {
com_err(progname, retval, _("while calculating master key salt"));
exit_status++;
goto cleanup_return;
}
retval = krb5_c_string_to_key(util_context, new_master_enctype,
&pwd, &master_salt, &new_mkeyblock);
if (retval) {
com_err(progname, retval,
_("while transforming master key from password"));
exit_status++;
goto cleanup_return;
}
new_mkey_kvno = get_next_kvno(util_context, master_entry);
retval = add_new_mkey(util_context, master_entry, &new_mkeyblock,
new_mkey_kvno);
if (retval) {
com_err(progname, retval,
_("adding new master key to master principal"));
exit_status++;
goto cleanup_return;
}
if ((retval = krb5_timeofday(util_context, &now))) {
com_err(progname, retval, _("while getting current time"));
exit_status++;
goto cleanup_return;
}
if ((retval = krb5_dbe_update_mod_princ_data(util_context, master_entry,
now, master_princ))) {
com_err(progname, retval, _("while updating the master key principal "
"modification time"));
exit_status++;
goto cleanup_return;
}
if ((retval = krb5_db_put_principal(util_context, master_entry))) {
(void) krb5_db_fini(util_context);
com_err(progname, retval, _("while adding master key entry to the "
"database"));
exit_status++;
goto cleanup_return;
}
if (do_stash) {
retval = krb5_db_store_master_key(util_context,
global_params.stash_file,
master_princ,
new_mkey_kvno,
&new_mkeyblock,
mkey_password);
if (retval) {
com_err(progname, errno, _("while storing key"));
printf(_("Warning: couldn't stash master key.\n"));
}
}
cleanup_return:
/* clean up */
(void) krb5_db_fini(util_context);
zap((char *)master_keyblock.contents, master_keyblock.length);
free(master_keyblock.contents);
zap((char *)new_mkeyblock.contents, new_mkeyblock.length);
free(new_mkeyblock.contents);
if (pw_str) {
zap(pw_str, pw_size);
free(pw_str);
}
free(master_salt.data);
krb5_free_unparsed_name(util_context, mkey_fullname);
return;
}
void
kdb5_purge_mkeys(int argc, char *argv[])
{
int optchar;
krb5_error_code retval;
char *mkey_fullname = NULL;
krb5_timestamp now;
krb5_db_entry *master_entry;
krb5_boolean force = FALSE, dry_run = FALSE, verbose = FALSE;
struct purge_args args;
char buf[5];
unsigned int i, j, k, num_kvnos_inuse, num_kvnos_purged;
unsigned int old_key_data_count;
krb5_actkvno_node *actkvno_list = NULL, *actkvno_entry, *prev_actkvno_entry;
krb5_mkey_aux_node *mkey_aux_list = NULL, *mkey_aux_entry, *prev_mkey_aux_entry;
krb5_key_data *old_key_data;
/*
* Verify that the master key list has been initialized before doing
* anything else.
*/
if (krb5_db_mkey_list_alias(util_context) == NULL) {
com_err(progname, KRB5_KDB_DBNOTINITED,
_("master keylist not initialized"));
exit_status++;
return;
}
memset(&master_princ, 0, sizeof(master_princ));
memset(&args, 0, sizeof(args));
optind = 1;
while ((optchar = getopt(argc, argv, "fnv")) != -1) {
switch(optchar) {
case 'f':
force = TRUE;
break;
case 'n':
dry_run = TRUE; /* mkey princ will not be modified */
force = TRUE; /* implied */
break;
case 'v':
verbose = TRUE;
break;
case '?':
default:
usage();
return;
}
}
/* assemble & parse the master key name */
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;
}
retval = krb5_db_get_principal(util_context, master_princ, 0,
&master_entry);
if (retval != 0) {
com_err(progname, retval, _("while getting master key principal %s"),
mkey_fullname);
exit_status++;
goto cleanup_return;
}
if (!force) {
printf(_("Will purge all unused master keys stored in the '%s' "
"principal, are you sure?\n"), mkey_fullname);
printf(_("(type 'yes' to confirm)? "));
if (fgets(buf, sizeof(buf), stdin) == NULL) {
exit_status++;
goto cleanup_return;
}
if (strcmp(buf, "yes\n")) {
exit_status++;
goto cleanup_return;
}
printf(_("OK, purging unused master keys from '%s'...\n"),
mkey_fullname);
}
/* save the old keydata */
old_key_data_count = master_entry->n_key_data;
if (old_key_data_count == 1) {
if (verbose)
printf(_("There is only one master key which can not be "
"purged.\n"));
goto cleanup_return;
}
old_key_data = master_entry->key_data;
args.kvnos = (struct kvnos_in_use *) malloc(sizeof(struct kvnos_in_use) * old_key_data_count);
if (args.kvnos == NULL) {
retval = ENOMEM;
com_err(progname, ENOMEM, _("while allocating args.kvnos"));
exit_status++;
goto cleanup_return;
}
memset(args.kvnos, 0, sizeof(struct kvnos_in_use) * old_key_data_count);
args.num_kvnos = old_key_data_count;
args.kcontext = util_context;
/* populate the kvnos array with all the current mkvnos */
for (i = 0; i < old_key_data_count; i++)
args.kvnos[i].kvno = master_entry->key_data[i].key_data_kvno;
if ((retval = krb5_db_iterate(util_context,
NULL,
find_mkvnos_in_use,
(krb5_pointer) &args))) {
com_err(progname, retval, _("while finding master keys in use"));
exit_status++;
goto cleanup_return;
}
/*
* args.kvnos has been marked with the mkvno's that are currently protecting
* princ entries
*/
if (dry_run) {
printf(_("Would purge the following master key(s) from %s:\n"),
mkey_fullname);
} else {
printf(_("Purging the following master key(s) from %s:\n"),
mkey_fullname);
}
/* find # of keys still in use or print out verbose info */
for (i = num_kvnos_inuse = num_kvnos_purged = 0; i < args.num_kvnos; i++) {
if (args.kvnos[i].use_count > 0) {
num_kvnos_inuse++;
} else {
/* this key would be deleted */
if (args.kvnos[i].kvno == master_kvno) {
com_err(progname, KRB5_KDB_STORED_MKEY_NOTCURRENT,
_("master key stash file needs updating, command "
"aborting"));
exit_status++;
goto cleanup_return;
}
num_kvnos_purged++;
printf(_("KVNO: %d\n"), args.kvnos[i].kvno);
}
}
/* didn't find any keys to purge */
if (num_kvnos_inuse == args.num_kvnos) {
printf(_("All keys in use, nothing purged.\n"));
goto cleanup_return;
}
if (dry_run) {
/* bail before doing anything else */
printf(_("%d key(s) would be purged.\n"), num_kvnos_purged);
goto cleanup_return;
}
retval = krb5_dbe_lookup_actkvno(util_context, master_entry, &actkvno_list);
if (retval != 0) {
com_err(progname, retval, _("while looking up active kvno list"));
exit_status++;
goto cleanup_return;
}
retval = krb5_dbe_lookup_mkey_aux(util_context, master_entry, &mkey_aux_list);
if (retval != 0) {
com_err(progname, retval, _("while looking up mkey aux data list"));
exit_status++;
goto cleanup_return;
}
master_entry->key_data = (krb5_key_data *) malloc(sizeof(krb5_key_data) * num_kvnos_inuse);
if (master_entry->key_data == NULL) {
retval = ENOMEM;
com_err(progname, ENOMEM, _("while allocating key_data"));
exit_status++;
goto cleanup_return;
}
memset(master_entry->key_data, 0, sizeof(krb5_key_data) * num_kvnos_inuse);
master_entry->n_key_data = num_kvnos_inuse; /* there's only 1 mkey per kvno */
/*
* Assuming that the latest mkey will not be purged because it will always
* be "in use" so this code will not bother with encrypting keys again.
*/
for (i = k = 0; i < old_key_data_count; i++) {
for (j = 0; j < args.num_kvnos; j++) {
if (args.kvnos[j].kvno == (krb5_kvno) old_key_data[i].key_data_kvno) {
if (args.kvnos[j].use_count != 0) {
master_entry->key_data[k++] = old_key_data[i];
break;
} else {
/* remove unused mkey */
/* adjust the actkno data */
for (prev_actkvno_entry = actkvno_entry = actkvno_list;
actkvno_entry != NULL;
actkvno_entry = actkvno_entry->next) {
if (actkvno_entry->act_kvno == args.kvnos[j].kvno) {
if (actkvno_entry == actkvno_list) {
/* remove from head */
actkvno_list = actkvno_entry->next;
prev_actkvno_entry = actkvno_list;
} else if (actkvno_entry->next == NULL) {
/* remove from tail */
prev_actkvno_entry->next = NULL;
} else {
/* remove in between */
prev_actkvno_entry->next = actkvno_entry->next;
}
actkvno_entry->next = NULL;
krb5_dbe_free_actkvno_list(util_context, actkvno_entry);
break; /* deleted entry, no need to loop further */
} else {
prev_actkvno_entry = actkvno_entry;
}
}
/* adjust the mkey aux data */
for (prev_mkey_aux_entry = mkey_aux_entry = mkey_aux_list;
mkey_aux_entry != NULL;
mkey_aux_entry = mkey_aux_entry->next) {
if (mkey_aux_entry->mkey_kvno == args.kvnos[j].kvno) {
if (mkey_aux_entry == mkey_aux_list) {
mkey_aux_list = mkey_aux_entry->next;
prev_mkey_aux_entry = mkey_aux_list;
} else if (mkey_aux_entry->next == NULL) {
prev_mkey_aux_entry->next = NULL;
} else {
prev_mkey_aux_entry->next = mkey_aux_entry->next;
}
mkey_aux_entry->next = NULL;
krb5_dbe_free_mkey_aux_list(util_context, mkey_aux_entry);
break; /* deleted entry, no need to loop further */
} else {
prev_mkey_aux_entry = mkey_aux_entry;
}
}
}
}
}
}
assert(k == num_kvnos_inuse);
if ((retval = krb5_dbe_update_actkvno(util_context, master_entry,
actkvno_list))) {
com_err(progname, retval,
_("while updating actkvno data for master principal entry"));
exit_status++;
goto cleanup_return;
}
if ((retval = krb5_dbe_update_mkey_aux(util_context, master_entry,
mkey_aux_list))) {
com_err(progname, retval,
_("while updating mkey_aux data for master principal entry"));
exit_status++;
return;
}
if ((retval = krb5_timeofday(util_context, &now))) {
com_err(progname, retval, _("while getting current time"));
exit_status++;
goto cleanup_return;
}
if ((retval = krb5_dbe_update_mod_princ_data(util_context, master_entry,
now, master_princ))) {
com_err(progname, retval, _("while updating the master key principal "
"modification time"));
exit_status++;
goto cleanup_return;
}
master_entry->mask |= KADM5_KEY_DATA;
if ((retval = krb5_db_put_principal(util_context, master_entry))) {
(void) krb5_db_fini(util_context);
com_err(progname, retval,
_("while adding master key entry to the database"));
exit_status++;
goto cleanup_return;
}
printf(_("%d key(s) purged.\n"), num_kvnos_purged);
cleanup_return:
/* clean up */
(void) krb5_db_fini(util_context);
krb5_free_principal(util_context, master_princ);
free(args.kvnos);
krb5_free_unparsed_name(util_context, mkey_fullname);
krb5_dbe_free_actkvno_list(util_context, actkvno_list);
krb5_dbe_free_mkey_aux_list(util_context, mkey_aux_list);
return;
}