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|
/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* plugins/kdb/ldap/ldap_util/kdb5_ldap_realm.c */
/*
* Copyright 1990,1991,2001, 2002, 2008 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, 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 name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
/*
* Copyright (C) 1998 by the FundsXpress, INC.
*
* All rights reserved.
*
* Export of this software from the United States of America may require
* a specific license from the United States Government. It is the
* responsibility of any person or organization contemplating export to
* obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, 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 name of FundsXpress. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. FundsXpress makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* Copyright (c) 2004-2005, Novell, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * The copyright holder's name is not used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
/*
* Create / Modify / Destroy / View / List realm(s)
*/
#include <k5-int.h>
#include <kadm5/admin.h>
#include <adm_proto.h>
#include "kdb5_ldap_util.h"
#include "kdb5_ldap_list.h"
#include <ldap_principal.h>
#include <ldap_krbcontainer.h>
extern time_t get_date(char *); /* kadmin/cli/getdate.o */
char *yes = "yes\n"; /* \n to compare against result of fgets */
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"} };
static krb5_principal_data db_create_princ = {
0, /* magic number */
{0, 0, 0}, /* krb5_data realm */
db_creator_entries, /* krb5_data *data */
1, /* int length */
KRB5_NT_SRV_INST /* int type */
};
extern char *mkey_password;
extern char *progname;
extern kadm5_config_params global_params;
static void print_realm_params(krb5_ldap_realm_params *rparams, int mask);
static int kdb_ldap_create_principal (krb5_context context, krb5_principal
princ, enum ap_op op,
struct realm_info *pblock,
const krb5_keyblock *master_keyblock);
static char *strdur(time_t duration);
static int get_ticket_policy(krb5_ldap_realm_params *rparams, int *i, char *argv[],int argc);
static krb5_error_code krb5_dbe_update_mod_princ_data_new (krb5_context context, krb5_db_entry *entry, krb5_timestamp mod_date, krb5_const_principal mod_princ);
static krb5_error_code krb5_dbe_update_tl_data_new ( krb5_context context, krb5_db_entry *entry, krb5_tl_data *new_tl_data);
#define ADMIN_LIFETIME 60*60*3 /* 3 hours */
#define CHANGEPW_LIFETIME 60*5 /* 5 minutes */
static int
get_ticket_policy(krb5_ldap_realm_params *rparams, int *i, char *argv[],
int argc)
{
time_t date;
time_t now;
int mask = 0;
krb5_error_code retval = 0;
krb5_boolean no_msg = FALSE;
krb5_boolean print_usage = FALSE;
char *me = progname;
time(&now);
if (!strcmp(argv[*i], "-maxtktlife")) {
if (++(*i) > argc-1)
goto err_usage;
date = get_date(argv[*i]);
if (date == (time_t)(-1)) {
retval = EINVAL;
com_err(me, retval, _("while providing time specification"));
goto err_nomsg;
}
rparams->max_life = date-now;
mask |= LDAP_REALM_MAXTICKETLIFE;
}
else if (!strcmp(argv[*i], "-maxrenewlife")) {
if (++(*i) > argc-1)
goto err_usage;
date = get_date(argv[*i]);
if (date == (time_t)(-1)) {
retval = EINVAL;
com_err(me, retval, _("while providing time specification"));
goto err_nomsg;
}
rparams->max_renewable_life = date-now;
mask |= LDAP_REALM_MAXRENEWLIFE;
} else if (!strcmp((argv[*i] + 1), "allow_postdated")) {
if (*(argv[*i]) == '+')
rparams->tktflags &= (int)(~KRB5_KDB_DISALLOW_POSTDATED);
else if (*(argv[*i]) == '-')
rparams->tktflags |= KRB5_KDB_DISALLOW_POSTDATED;
else
goto err_usage;
mask |= LDAP_REALM_KRBTICKETFLAGS;
} else if (!strcmp((argv[*i] + 1), "allow_forwardable")) {
if (*(argv[*i]) == '+')
rparams->tktflags &= (int)(~KRB5_KDB_DISALLOW_FORWARDABLE);
else if (*(argv[*i]) == '-')
rparams->tktflags |= KRB5_KDB_DISALLOW_FORWARDABLE;
else
goto err_usage;
mask |= LDAP_REALM_KRBTICKETFLAGS;
} else if (!strcmp((argv[*i] + 1), "allow_renewable")) {
if (*(argv[*i]) == '+')
rparams->tktflags &= (int)(~KRB5_KDB_DISALLOW_RENEWABLE);
else if (*(argv[*i]) == '-')
rparams->tktflags |= KRB5_KDB_DISALLOW_RENEWABLE;
else
goto err_usage;
mask |= LDAP_REALM_KRBTICKETFLAGS;
} else if (!strcmp((argv[*i] + 1), "allow_proxiable")) {
if (*(argv[*i]) == '+')
rparams->tktflags &= (int)(~KRB5_KDB_DISALLOW_PROXIABLE);
else if (*(argv[*i]) == '-')
rparams->tktflags |= KRB5_KDB_DISALLOW_PROXIABLE;
else
goto err_usage;
mask |= LDAP_REALM_KRBTICKETFLAGS;
} else if (!strcmp((argv[*i] + 1), "allow_dup_skey")) {
if (*(argv[*i]) == '+')
rparams->tktflags &= (int)(~KRB5_KDB_DISALLOW_DUP_SKEY);
else if (*(argv[*i]) == '-')
rparams->tktflags |= KRB5_KDB_DISALLOW_DUP_SKEY;
else
goto err_usage;
mask |= LDAP_REALM_KRBTICKETFLAGS;
}
else if (!strcmp((argv[*i] + 1), "requires_preauth")) {
if (*(argv[*i]) == '+')
rparams->tktflags |= KRB5_KDB_REQUIRES_PRE_AUTH;
else if (*(argv[*i]) == '-')
rparams->tktflags &= (int)(~KRB5_KDB_REQUIRES_PRE_AUTH);
else
goto err_usage;
mask |= LDAP_REALM_KRBTICKETFLAGS;
} else if (!strcmp((argv[*i] + 1), "requires_hwauth")) {
if (*(argv[*i]) == '+')
rparams->tktflags |= KRB5_KDB_REQUIRES_HW_AUTH;
else if (*(argv[*i]) == '-')
rparams->tktflags &= (int)(~KRB5_KDB_REQUIRES_HW_AUTH);
else
goto err_usage;
mask |= LDAP_REALM_KRBTICKETFLAGS;
} else if (!strcmp((argv[*i] + 1), "allow_svr")) {
if (*(argv[*i]) == '+')
rparams->tktflags &= (int)(~KRB5_KDB_DISALLOW_SVR);
else if (*(argv[*i]) == '-')
rparams->tktflags |= KRB5_KDB_DISALLOW_SVR;
else
goto err_usage;
mask |= LDAP_REALM_KRBTICKETFLAGS;
} else if (!strcmp((argv[*i] + 1), "allow_tgs_req")) {
if (*(argv[*i]) == '+')
rparams->tktflags &= (int)(~KRB5_KDB_DISALLOW_TGT_BASED);
else if (*(argv[*i]) == '-')
rparams->tktflags |= KRB5_KDB_DISALLOW_TGT_BASED;
else
goto err_usage;
mask |= LDAP_REALM_KRBTICKETFLAGS;
} else if (!strcmp((argv[*i] + 1), "allow_tix")) {
if (*(argv[*i]) == '+')
rparams->tktflags &= (int)(~KRB5_KDB_DISALLOW_ALL_TIX);
else if (*(argv[*i]) == '-')
rparams->tktflags |= KRB5_KDB_DISALLOW_ALL_TIX;
else
goto err_usage;
mask |= LDAP_REALM_KRBTICKETFLAGS;
} else if (!strcmp((argv[*i] + 1), "needchange")) {
if (*(argv[*i]) == '+')
rparams->tktflags |= KRB5_KDB_REQUIRES_PWCHANGE;
else if (*(argv[*i]) == '-')
rparams->tktflags &= (int)(~KRB5_KDB_REQUIRES_PWCHANGE);
else
goto err_usage;
mask |= LDAP_REALM_KRBTICKETFLAGS;
} else if (!strcmp((argv[*i] + 1), "password_changing_service")) {
if (*(argv[*i]) == '+')
rparams->tktflags |= KRB5_KDB_PWCHANGE_SERVICE;
else if (*(argv[*i]) == '-')
rparams->tktflags &= (int)(~KRB5_KDB_PWCHANGE_SERVICE);
else
goto err_usage;
mask |=LDAP_REALM_KRBTICKETFLAGS;
}
err_usage:
print_usage = TRUE;
err_nomsg:
no_msg = TRUE;
return mask;
}
/* Create a special principal using two specified components. */
static krb5_error_code
create_fixed_special(krb5_context context, struct realm_info *rinfo,
krb5_keyblock *mkey, const char *comp1, const char *comp2)
{
krb5_error_code ret;
krb5_principal princ;
const char *realm = global_params.realm;
ret = krb5_build_principal(context, &princ, strlen(realm), realm, comp1,
comp2, (const char *)NULL);
if (ret)
return ret;
ret = kdb_ldap_create_principal(context, princ, TGT_KEY, rinfo, mkey);
krb5_free_principal(context, princ);
return ret;
}
/* Create a special principal using one specified component and the
* canonicalized local hostname. */
static krb5_error_code
create_hostbased_special(krb5_context context, struct realm_info *rinfo,
krb5_keyblock *mkey, const char *comp1)
{
krb5_error_code ret;
krb5_principal princ = NULL;
ret = krb5_sname_to_principal(context, NULL, comp1, KRB5_NT_SRV_HST,
&princ);
if (ret)
goto cleanup;
ret = krb5_set_principal_realm(context, princ, global_params.realm);
if (ret)
goto cleanup;
ret = kdb_ldap_create_principal(context, princ, TGT_KEY, rinfo, mkey);
cleanup:
krb5_free_principal(context, princ);
return ret;
}
/* Create all special principals for the realm. */
static krb5_error_code
create_special_princs(krb5_context context, krb5_principal master_princ,
krb5_keyblock *mkey)
{
krb5_error_code ret;
struct realm_info rblock;
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.key = mkey;
rblock.nkslist = global_params.num_keysalts;
rblock.kslist = global_params.keysalts;
/* Create master principal. */
rblock.flags |= KRB5_KDB_DISALLOW_ALL_TIX;
ret = kdb_ldap_create_principal(context, master_princ, MASTER_KEY, &rblock,
mkey);
if (ret)
return ret;
/* Create local krbtgt principal. */
rblock.flags = 0;
ret = create_fixed_special(context, &rblock, mkey, KRB5_TGS_NAME,
global_params.realm);
if (ret)
return ret;
/* Create kadmin/admin and kadmin/<hostname>. */
rblock.max_life = ADMIN_LIFETIME;
rblock.flags = KRB5_KDB_DISALLOW_TGT_BASED;
ret = create_fixed_special(context, &rblock, mkey, "kadmin", "admin");
if (ret)
return ret;
ret = create_hostbased_special(context, &rblock, mkey, "kadmin");
if (ret)
return ret;
/* Create kiprop/<hostname>. */
rblock.max_life = global_params.max_life;
rblock.flags = 0;
ret = create_hostbased_special(context, &rblock, mkey, "kiprop");
if (ret)
return ret;
/* Create kadmin/changepw. */
rblock.max_life = CHANGEPW_LIFETIME;
rblock.flags = KRB5_KDB_DISALLOW_TGT_BASED | KRB5_KDB_PWCHANGE_SERVICE;
ret = create_fixed_special(context, &rblock, mkey, "kadmin", "changepw");
if (ret)
return ret;
/* Create kadmin/history. */
rblock.max_life = global_params.max_life;
rblock.flags = 0;
return create_fixed_special(context, &rblock, mkey, "kadmin", "history");
}
/*
* This function will create a realm on the LDAP Server, with
* the specified attributes.
*/
void
kdb5_ldap_create(int argc, char *argv[])
{
krb5_error_code retval = 0;
krb5_keyblock master_keyblock;
krb5_ldap_realm_params *rparams = NULL;
krb5_principal master_princ = NULL;
kdb5_dal_handle *dal_handle = NULL;
krb5_ldap_context *ldap_context=NULL;
krb5_boolean realm_obj_created = FALSE;
krb5_boolean create_complete = FALSE;
krb5_boolean print_usage = FALSE;
krb5_boolean no_msg = FALSE;
char *oldcontainerref=NULL;
char pw_str[1024];
int do_stash = 0;
int i = 0;
int mask = 0, ret_mask = 0;
char **list = NULL;
memset(&master_keyblock, 0, sizeof(master_keyblock));
rparams = (krb5_ldap_realm_params *)malloc(
sizeof(krb5_ldap_realm_params));
if (rparams == NULL) {
retval = ENOMEM;
goto cleanup;
}
memset(rparams, 0, sizeof(krb5_ldap_realm_params));
/* Parse the arguments */
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "-subtrees")) {
if (++i > argc-1)
goto err_usage;
if (strncmp(argv[i], "", strlen(argv[i]))!=0) {
list = (char **) calloc(MAX_LIST_ENTRIES, sizeof(char *));
if (list == NULL) {
retval = ENOMEM;
goto cleanup;
}
if ((retval = krb5_parse_list(argv[i], LIST_DELIMITER, list))) {
free(list);
list = NULL;
goto cleanup;
}
rparams->subtreecount=0;
while (list[rparams->subtreecount]!=NULL)
(rparams->subtreecount)++;
rparams->subtree = list;
} else if (strncmp(argv[i], "", strlen(argv[i]))==0) {
/* dont allow subtree value to be set at the root(NULL, "") of the tree */
com_err(progname, EINVAL,
_("for subtree while creating realm '%s'"),
global_params.realm);
goto err_nomsg;
}
rparams->subtree[rparams->subtreecount] = NULL;
mask |= LDAP_REALM_SUBTREE;
} else if (!strcmp(argv[i], "-containerref")) {
if (++i > argc-1)
goto err_usage;
if (strncmp(argv[i], "", strlen(argv[i]))==0) {
/* dont allow containerref value to be set at the root(NULL, "") of the tree */
com_err(progname, EINVAL,
_("for container reference while creating realm '%s'"),
global_params.realm);
goto err_nomsg;
}
free(rparams->containerref);
rparams->containerref = strdup(argv[i]);
if (rparams->containerref == NULL) {
retval = ENOMEM;
goto cleanup;
}
mask |= LDAP_REALM_CONTREF;
} else if (!strcmp(argv[i], "-sscope")) {
if (++i > argc-1)
goto err_usage;
/* Possible values for search scope are
* one (or 1) and sub (or 2)
*/
if (!strcasecmp(argv[i], "one")) {
rparams->search_scope = 1;
} else if (!strcasecmp(argv[i], "sub")) {
rparams->search_scope = 2;
} else {
rparams->search_scope = atoi(argv[i]);
if ((rparams->search_scope != 1) &&
(rparams->search_scope != 2)) {
com_err(progname, EINVAL, _("invalid search scope while "
"creating realm '%s'"),
global_params.realm);
goto err_nomsg;
}
}
mask |= LDAP_REALM_SEARCHSCOPE;
}
else if (!strcmp(argv[i], "-s")) {
do_stash = 1;
} else if ((ret_mask= get_ticket_policy(rparams,&i,argv,argc)) !=0) {
mask|=ret_mask;
}
else {
printf(_("'%s' is an invalid option\n"), argv[i]);
goto err_usage;
}
}
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));
printf(_("Initializing database for realm '%s'\n"), global_params.realm);
if (!mkey_password) {
unsigned int pw_size;
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 = sizeof (pw_str);
memset(pw_str, 0, 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"));
goto err_nomsg;
}
mkey_password = pw_str;
}
rparams->realm_name = strdup(global_params.realm);
if (rparams->realm_name == NULL) {
retval = ENOMEM;
com_err(progname, ENOMEM, _("while creating realm '%s'"),
global_params.realm);
goto err_nomsg;
}
dal_handle = util_context->dal_handle;
ldap_context = (krb5_ldap_context *) dal_handle->db_context;
if (!ldap_context) {
retval = EINVAL;
goto cleanup;
}
/* read the kerberos container */
retval = krb5_ldap_read_krbcontainer_dn(util_context,
&ldap_context->container_dn);
if (retval) {
/* Prompt the user for entering the DN of Kerberos container */
char krb_location[MAX_KRB_CONTAINER_LEN];
int krb_location_len = 0;
printf(_("Enter DN of Kerberos container: "));
if (fgets(krb_location, MAX_KRB_CONTAINER_LEN, stdin) != NULL) {
/* Remove the newline character at the end */
krb_location_len = strlen(krb_location);
if ((krb_location[krb_location_len - 1] == '\n') ||
(krb_location[krb_location_len - 1] == '\r')) {
krb_location[krb_location_len - 1] = '\0';
krb_location_len--;
}
ldap_context->container_dn = strdup(krb_location);
if (ldap_context->container_dn == NULL) {
retval = ENOMEM;
goto cleanup;
}
}
}
/* create the kerberos container if it doesn't exist */
retval = krb5_ldap_create_krbcontainer(util_context,
ldap_context->container_dn);
if (retval)
goto cleanup;
if ((retval = krb5_ldap_create_realm(util_context,
/* global_params.realm, */ rparams, mask))) {
goto cleanup;
}
/* We just created the Realm container. Here starts our transaction tracking */
realm_obj_created = TRUE;
if ((retval = krb5_ldap_read_realm_params(util_context,
global_params.realm,
&(ldap_context->lrparams),
&mask))) {
com_err(progname, retval, _("while reading information of realm '%s'"),
global_params.realm);
goto err_nomsg;
}
free(ldap_context->lrparams->realm_name);
ldap_context->lrparams->realm_name = strdup(global_params.realm);
if (ldap_context->lrparams->realm_name == NULL) {
retval = ENOMEM;
goto cleanup;
}
/* assemble & parse the master key name */
if ((retval = krb5_db_setup_mkey_name(util_context,
global_params.mkey_name,
global_params.realm,
0, &master_princ))) {
com_err(progname, retval, _("while setting up master key name"));
goto err_nomsg;
}
/* Obtain master key from master password */
{
krb5_data master_salt, pwd;
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"));
goto err_nomsg;
}
retval = krb5_c_string_to_key(util_context, global_params.enctype,
&pwd, &master_salt, &master_keyblock);
if (master_salt.data)
free(master_salt.data);
if (retval) {
com_err(progname, retval,
_("while transforming master key from password"));
goto err_nomsg;
}
}
/* Create special principals (not in the container reference). */
oldcontainerref = ldap_context->lrparams->containerref;
ldap_context->lrparams->containerref = NULL;
retval = create_special_princs(util_context, master_princ,
&master_keyblock);
ldap_context->lrparams->containerref = oldcontainerref;
if (retval) {
com_err(progname, retval, _("while adding entries to the database"));
goto err_nomsg;
}
/* The Realm creation is completed. Here is the end of transaction */
create_complete = TRUE;
/* Stash the master key only if '-s' option is specified */
if (do_stash || global_params.mask & KADM5_CONFIG_STASH_FILE) {
krb5_kvno mkey_kvno;
/*
* Determine the kvno to use, it must be that used to create the master
* key princ.
*/
if (global_params.mask & KADM5_CONFIG_KVNO)
mkey_kvno = global_params.kvno; /* user specified */
else
mkey_kvno = 1; /* Default */
retval = krb5_db_store_master_key(util_context,
global_params.stash_file,
master_princ,
mkey_kvno,
&master_keyblock, NULL);
if (retval) {
com_err(progname, errno, _("while storing key"));
printf(_("Warning: couldn't stash master key.\n"));
}
}
goto cleanup;
err_usage:
print_usage = TRUE;
err_nomsg:
no_msg = TRUE;
cleanup:
/* If the Realm creation is not complete, do the roll-back here */
if ((realm_obj_created) && (!create_complete))
krb5_ldap_delete_realm(util_context, global_params.realm);
if (rparams)
krb5_ldap_free_realm_params(rparams);
memset (pw_str, 0, sizeof (pw_str));
if (print_usage)
db_usage(CREATE_REALM);
if (retval) {
if (!no_msg) {
com_err(progname, retval, _("while creating realm '%s'"),
global_params.realm);
}
exit_status++;
}
krb5_free_keyblock_contents(util_context, &master_keyblock);
krb5_free_principal(util_context, master_princ);
}
/*
* This function will modify the attributes of a given realm object
*/
void
kdb5_ldap_modify(int argc, char *argv[])
{
krb5_error_code retval = 0;
krb5_ldap_realm_params *rparams = NULL;
krb5_boolean print_usage = FALSE;
krb5_boolean no_msg = FALSE;
kdb5_dal_handle *dal_handle = NULL;
krb5_ldap_context *ldap_context=NULL;
int i = 0;
int mask = 0, rmask = 0, ret_mask = 0;
char **slist = {NULL};
dal_handle = util_context->dal_handle;
ldap_context = (krb5_ldap_context *) dal_handle->db_context;
if (!(ldap_context)) {
retval = EINVAL;
goto cleanup;
}
retval = krb5_ldap_read_krbcontainer_dn(util_context,
&ldap_context->container_dn);
if (retval) {
com_err(progname, retval,
_("while reading Kerberos container information"));
goto err_nomsg;
}
retval = krb5_ldap_read_realm_params(util_context,
global_params.realm, &rparams, &rmask);
if (retval)
goto cleanup;
/* Parse the arguments */
for (i = 1; i < argc; i++) {
int k = 0;
if (!strcmp(argv[i], "-subtrees")) {
if (++i > argc-1)
goto err_usage;
if (rmask & LDAP_REALM_SUBTREE) {
if (rparams->subtree) {
for (k=0; k<rparams->subtreecount && rparams->subtree[k]; k++)
free(rparams->subtree[k]);
free(rparams->subtree);
rparams->subtreecount=0;
rparams->subtree = NULL;
}
}
if (strncmp(argv[i] ,"", strlen(argv[i]))!=0) {
slist = (char **) calloc(MAX_LIST_ENTRIES, sizeof(char *));
if (slist == NULL) {
retval = ENOMEM;
goto cleanup;
}
if ((retval = krb5_parse_list(argv[i], LIST_DELIMITER, slist))) {
free(slist);
slist = NULL;
goto cleanup;
}
rparams->subtreecount=0;
while (slist[rparams->subtreecount]!=NULL)
(rparams->subtreecount)++;
rparams->subtree = slist;
} else if (strncmp(argv[i], "", strlen(argv[i]))==0) {
/* dont allow subtree value to be set at the root(NULL, "") of the tree */
com_err(progname, EINVAL,
_("for subtree while modifying realm '%s'"),
global_params.realm);
goto err_nomsg;
}
rparams->subtree[rparams->subtreecount] = NULL;
mask |= LDAP_REALM_SUBTREE;
} else if (!strncmp(argv[i], "-containerref", strlen(argv[i]))) {
if (++i > argc-1)
goto err_usage;
if (strncmp(argv[i], "", strlen(argv[i]))==0) {
/* dont allow containerref value to be set at the root(NULL, "") of the tree */
com_err(progname, EINVAL, _("for container reference while "
"modifying realm '%s'"),
global_params.realm);
goto err_nomsg;
}
free(rparams->containerref);
rparams->containerref = strdup(argv[i]);
if (rparams->containerref == NULL) {
retval = ENOMEM;
goto cleanup;
}
mask |= LDAP_REALM_CONTREF;
} else if (!strcmp(argv[i], "-sscope")) {
if (++i > argc-1)
goto err_usage;
/* Possible values for search scope are
* one (or 1) and sub (or 2)
*/
if (strcasecmp(argv[i], "one") == 0) {
rparams->search_scope = 1;
} else if (strcasecmp(argv[i], "sub") == 0) {
rparams->search_scope = 2;
} else {
rparams->search_scope = atoi(argv[i]);
if ((rparams->search_scope != 1) &&
(rparams->search_scope != 2)) {
retval = EINVAL;
com_err(progname, retval,
_("specified for search scope while modifying "
"information of realm '%s'"),
global_params.realm);
goto err_nomsg;
}
}
mask |= LDAP_REALM_SEARCHSCOPE;
}
else if ((ret_mask= get_ticket_policy(rparams,&i,argv,argc)) !=0) {
mask|=ret_mask;
} else {
printf(_("'%s' is an invalid option\n"), argv[i]);
goto err_usage;
}
}
if ((retval = krb5_ldap_modify_realm(util_context,
/* global_params.realm, */ rparams, mask))) {
goto cleanup;
}
goto cleanup;
err_usage:
print_usage = TRUE;
err_nomsg:
no_msg = TRUE;
cleanup:
krb5_ldap_free_realm_params(rparams);
if (print_usage) {
db_usage(MODIFY_REALM);
}
if (retval) {
if (!no_msg)
com_err(progname, retval,
_("while modifying information of realm '%s'"),
global_params.realm);
exit_status++;
}
return;
}
/*
* This function displays the attributes of a Realm
*/
void
kdb5_ldap_view(int argc, char *argv[])
{
krb5_ldap_realm_params *rparams = NULL;
krb5_error_code retval = 0;
kdb5_dal_handle *dal_handle=NULL;
krb5_ldap_context *ldap_context=NULL;
int mask = 0;
dal_handle = util_context->dal_handle;
ldap_context = (krb5_ldap_context *) dal_handle->db_context;
if (!(ldap_context)) {
retval = EINVAL;
com_err(progname, retval, _("while initializing database"));
exit_status++;
return;
}
/* Read the kerberos container information */
retval = krb5_ldap_read_krbcontainer_dn(util_context,
&ldap_context->container_dn);
if (retval) {
com_err(progname, retval,
_("while reading kerberos container information"));
exit_status++;
return;
}
if ((retval = krb5_ldap_read_realm_params(util_context,
global_params.realm, &rparams, &mask)) || (!rparams)) {
com_err(progname, retval, _("while reading information of realm '%s'"),
global_params.realm);
exit_status++;
return;
}
print_realm_params(rparams, mask);
krb5_ldap_free_realm_params(rparams);
return;
}
static char *
strdur(time_t duration)
{
static char out[50];
int neg, days, hours, minutes, seconds;
if (duration < 0) {
duration *= -1;
neg = 1;
} else
neg = 0;
days = duration / (24 * 3600);
duration %= 24 * 3600;
hours = duration / 3600;
duration %= 3600;
minutes = duration / 60;
duration %= 60;
seconds = duration;
snprintf(out, sizeof(out), "%s%d %s %02d:%02d:%02d", neg ? "-" : "",
days, days == 1 ? "day" : "days",
hours, minutes, seconds);
return out;
}
/*
* This function prints the attributes of a given realm to the
* standard output.
*/
static void
print_realm_params(krb5_ldap_realm_params *rparams, int mask)
{
char **slist = NULL;
unsigned int num_entry_printed = 0, i = 0;
/* Print the Realm Attributes on the standard output */
printf("%25s: %-50s\n", _("Realm Name"), global_params.realm);
if (mask & LDAP_REALM_SUBTREE) {
for (i=0; rparams->subtree[i]!=NULL; i++)
printf("%25s: %-50s\n", _("Subtree"), rparams->subtree[i]);
}
if (mask & LDAP_REALM_CONTREF)
printf("%25s: %-50s\n", _("Principal Container Reference"),
rparams->containerref);
if (mask & LDAP_REALM_SEARCHSCOPE) {
if ((rparams->search_scope != 1) &&
(rparams->search_scope != 2)) {
printf("%25s: %-50s\n", _("SearchScope"), _("Invalid !"));
} else {
printf("%25s: %-50s\n", _("SearchScope"),
(rparams->search_scope == 1) ? "ONE" : "SUB");
}
}
if (mask & LDAP_REALM_KDCSERVERS) {
printf("%25s:", _("KDC Services"));
if (rparams->kdcservers != NULL) {
num_entry_printed = 0;
for (slist = rparams->kdcservers; *slist != NULL; slist++) {
if (num_entry_printed)
printf(" %25s %-50s\n", " ", *slist);
else
printf(" %-50s\n", *slist);
num_entry_printed++;
}
}
if (num_entry_printed == 0)
printf("\n");
}
if (mask & LDAP_REALM_ADMINSERVERS) {
printf("%25s:", _("Admin Services"));
if (rparams->adminservers != NULL) {
num_entry_printed = 0;
for (slist = rparams->adminservers; *slist != NULL; slist++) {
if (num_entry_printed)
printf(" %25s %-50s\n", " ", *slist);
else
printf(" %-50s\n", *slist);
num_entry_printed++;
}
}
if (num_entry_printed == 0)
printf("\n");
}
if (mask & LDAP_REALM_PASSWDSERVERS) {
printf("%25s:", _("Passwd Services"));
if (rparams->passwdservers != NULL) {
num_entry_printed = 0;
for (slist = rparams->passwdservers; *slist != NULL; slist++) {
if (num_entry_printed)
printf(" %25s %-50s\n", " ", *slist);
else
printf(" %-50s\n", *slist);
num_entry_printed++;
}
}
if (num_entry_printed == 0)
printf("\n");
}
if (mask & LDAP_REALM_MAXTICKETLIFE) {
printf("%25s:", _("Maximum Ticket Life"));
printf(" %s \n", strdur(rparams->max_life));
}
if (mask & LDAP_REALM_MAXRENEWLIFE) {
printf("%25s:", _("Maximum Renewable Life"));
printf(" %s \n", strdur(rparams->max_renewable_life));
}
if (mask & LDAP_REALM_KRBTICKETFLAGS) {
int ticketflags = rparams->tktflags;
printf("%25s: ", _("Ticket flags"));
if (ticketflags & KRB5_KDB_DISALLOW_POSTDATED)
printf("%s ","DISALLOW_POSTDATED");
if (ticketflags & KRB5_KDB_DISALLOW_FORWARDABLE)
printf("%s ","DISALLOW_FORWARDABLE");
if (ticketflags & KRB5_KDB_DISALLOW_RENEWABLE)
printf("%s ","DISALLOW_RENEWABLE");
if (ticketflags & KRB5_KDB_DISALLOW_PROXIABLE)
printf("%s ","DISALLOW_PROXIABLE");
if (ticketflags & KRB5_KDB_DISALLOW_DUP_SKEY)
printf("%s ","DISALLOW_DUP_SKEY");
if (ticketflags & KRB5_KDB_REQUIRES_PRE_AUTH)
printf("%s ","REQUIRES_PRE_AUTH");
if (ticketflags & KRB5_KDB_REQUIRES_HW_AUTH)
printf("%s ","REQUIRES_HW_AUTH");
if (ticketflags & KRB5_KDB_DISALLOW_SVR)
printf("%s ","DISALLOW_SVR");
if (ticketflags & KRB5_KDB_DISALLOW_TGT_BASED)
printf("%s ","DISALLOW_TGT_BASED");
if (ticketflags & KRB5_KDB_DISALLOW_ALL_TIX)
printf("%s ","DISALLOW_ALL_TIX");
if (ticketflags & KRB5_KDB_REQUIRES_PWCHANGE)
printf("%s ","REQUIRES_PWCHANGE");
if (ticketflags & KRB5_KDB_PWCHANGE_SERVICE)
printf("%s ","PWCHANGE_SERVICE");
printf("\n");
}
return;
}
/*
* This function lists the Realm(s) present under the Kerberos container
* on the LDAP Server.
*/
void
kdb5_ldap_list(int argc, char *argv[])
{
char **list = NULL;
char **plist = NULL;
krb5_error_code retval = 0;
kdb5_dal_handle *dal_handle=NULL;
krb5_ldap_context *ldap_context=NULL;
dal_handle = util_context->dal_handle;
ldap_context = (krb5_ldap_context *) dal_handle->db_context;
if (!(ldap_context)) {
retval = EINVAL;
exit_status++;
return;
}
/* Read the kerberos container information */
retval = krb5_ldap_read_krbcontainer_dn(util_context,
&ldap_context->container_dn);
if (retval) {
com_err(progname, retval,
_("while reading kerberos container information"));
exit_status++;
return;
}
retval = krb5_ldap_list_realm(util_context, &list);
if (retval != 0) {
com_err(progname, retval, _("while listing realms"));
exit_status++;
return;
}
/* This is to handle the case of realm not present */
if (list == NULL)
return;
for (plist = list; *plist != NULL; plist++) {
printf("%s\n", *plist);
}
krb5_free_list_entries(list);
free(list);
return;
}
/*
* Duplicating the following two functions here because
* 'krb5_dbe_update_tl_data' uses backend specific memory allocation. The catch
* here is that the backend is not initialized - kdb5_ldap_util doesn't go
* through DAL.
* 1. krb5_dbe_update_tl_data
* 2. krb5_dbe_update_mod_princ_data
*/
/* Start duplicate code ... */
static krb5_error_code
krb5_dbe_update_tl_data_new(krb5_context context, krb5_db_entry *entry,
krb5_tl_data *new_tl_data)
{
krb5_tl_data *tl_data = NULL;
krb5_octet *tmp;
/* copy the new data first, so we can fail cleanly if malloc()
* fails */
if ((tmp = (krb5_octet *) malloc (new_tl_data->tl_data_length)) == NULL)
return (ENOMEM);
/* Find an existing entry of the specified type and point at
* it, or NULL if not found */
if (new_tl_data->tl_data_type != KRB5_TL_DB_ARGS) { /* db_args can be multiple */
for (tl_data = entry->tl_data; tl_data;
tl_data = tl_data->tl_data_next)
if (tl_data->tl_data_type == new_tl_data->tl_data_type)
break;
}
/* if necessary, chain a new record in the beginning and point at it */
if (!tl_data) {
if ((tl_data = (krb5_tl_data *) malloc (sizeof(krb5_tl_data))) == NULL) {
free(tmp);
return (ENOMEM);
}
memset(tl_data, 0, sizeof(krb5_tl_data));
tl_data->tl_data_next = entry->tl_data;
entry->tl_data = tl_data;
entry->n_tl_data++;
}
/* fill in the record */
free(tl_data->tl_data_contents);
tl_data->tl_data_type = new_tl_data->tl_data_type;
tl_data->tl_data_length = new_tl_data->tl_data_length;
tl_data->tl_data_contents = tmp;
memcpy(tmp, new_tl_data->tl_data_contents, tl_data->tl_data_length);
return (0);
}
static krb5_error_code
krb5_dbe_update_mod_princ_data_new(krb5_context context, krb5_db_entry *entry,
krb5_timestamp mod_date,
krb5_const_principal mod_princ)
{
krb5_tl_data tl_data;
krb5_error_code retval = 0;
krb5_octet * nextloc = 0;
char * unparse_mod_princ = 0;
unsigned int unparse_mod_princ_size;
if ((retval = krb5_unparse_name(context, mod_princ,
&unparse_mod_princ)))
return(retval);
unparse_mod_princ_size = strlen(unparse_mod_princ) + 1;
if ((nextloc = (krb5_octet *) malloc(unparse_mod_princ_size + 4))
== NULL) {
free(unparse_mod_princ);
return(ENOMEM);
}
tl_data.tl_data_type = KRB5_TL_MOD_PRINC;
tl_data.tl_data_length = unparse_mod_princ_size + 4;
tl_data.tl_data_contents = nextloc;
/* Mod Date */
krb5_kdb_encode_int32(mod_date, nextloc);
/* Mod Princ */
memcpy(nextloc+4, unparse_mod_princ, unparse_mod_princ_size);
retval = krb5_dbe_update_tl_data_new(context, entry, &tl_data);
free(unparse_mod_princ);
free(nextloc);
return(retval);
}
static krb5_error_code
kdb_ldap_tgt_keysalt_iterate(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;
krb5_db_entry *entry;
iargs = (struct iterate_args *) ptr;
kret = 0;
context = iargs->ctx;
entry = iargs->dbentp;
/*
* Convert the master key password into a key for this particular
* encryption system.
*/
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))) {*/
if ((entry->key_data =
(krb5_key_data *) realloc(entry->key_data,
(sizeof(krb5_key_data) *
(entry->n_key_data + 1)))) == NULL)
return (ENOMEM);
memset(entry->key_data + entry->n_key_data, 0, sizeof(krb5_key_data));
ind = entry->n_key_data++;
if (!(kret = krb5_c_make_random_key(context, ksent->ks_enctype,
&key))) {
kret = krb5_dbe_encrypt_key_data(context, iargs->rblock->key, &key,
NULL, 1, &entry->key_data[ind]);
krb5_free_keyblock_contents(context, &key);
}
/*}*/
return(kret);
}
/* End duplicate code */
/*
* This function creates service principals when
* creating the realm object.
*/
static int
kdb_ldap_create_principal(krb5_context context, krb5_principal princ,
enum ap_op op, struct realm_info *pblock,
const krb5_keyblock *master_keyblock)
{
int retval=0, currlen=0, princtype = 2 /* Service Principal */;
unsigned char *curr=NULL;
krb5_tl_data *tl_data=NULL;
krb5_db_entry entry;
long mask = 0;
krb5_keyblock key;
int kvno = 0;
kdb5_dal_handle *dal_handle = NULL;
krb5_ldap_context *ldap_context=NULL;
struct iterate_args iargs;
krb5_data *pdata;
krb5_timestamp now;
krb5_actkvno_node actkvno;
memset(&entry, 0, sizeof(entry));
if ((pblock == NULL) || (context == NULL)) {
retval = EINVAL;
goto cleanup;
}
dal_handle = context->dal_handle;
ldap_context = (krb5_ldap_context *) dal_handle->db_context;
if (!(ldap_context)) {
retval = EINVAL;
goto cleanup;
}
tl_data = malloc(sizeof(*tl_data));
if (tl_data == NULL) {
retval = ENOMEM;
goto cleanup;
}
memset(tl_data, 0, sizeof(*tl_data));
tl_data->tl_data_length = 1 + 2 + 2 + 1 + 2 + 4;
tl_data->tl_data_type = 7; /* KDB_TL_USER_INFO */
curr = tl_data->tl_data_contents = malloc(tl_data->tl_data_length);
if (tl_data->tl_data_contents == NULL) {
retval = ENOMEM;
goto cleanup;
}
memset(curr, 1, 1); /* Passing the mask as principal type */
curr += 1;
currlen = 2;
STORE16_INT(curr, currlen);
curr += currlen;
STORE16_INT(curr, princtype);
curr += currlen;
mask |= KADM5_PRINCIPAL;
mask |= KADM5_ATTRIBUTES ;
mask |= KADM5_MAX_LIFE ;
mask |= KADM5_MAX_RLIFE ;
mask |= KADM5_PRINC_EXPIRE_TIME ;
mask |= KADM5_KEY_DATA;
entry.tl_data = tl_data;
entry.n_tl_data += 1;
/* Set the creator's name */
if ((retval = krb5_timeofday(context, &now)))
goto cleanup;
if ((retval = krb5_dbe_update_mod_princ_data_new(context, &entry,
now, &db_create_princ)))
goto cleanup;
entry.attributes = pblock->flags;
entry.max_life = pblock->max_life;
entry.max_renewable_life = pblock->max_rlife;
entry.expiration = pblock->expiration;
entry.mask = mask;
if ((retval = krb5_copy_principal(context, princ, &entry.princ)))
goto cleanup;
switch (op) {
case TGT_KEY:
if ((pdata = krb5_princ_component(context, princ, 1)) &&
pdata->length == strlen("history") &&
!memcmp(pdata->data, "history", strlen("history"))) {
/* Allocate memory for storing the key */
if ((entry.key_data = (krb5_key_data *) malloc(
sizeof(krb5_key_data))) == NULL) {
retval = ENOMEM;
goto cleanup;
}
memset(entry.key_data, 0, sizeof(krb5_key_data));
entry.n_key_data++;
retval = krb5_c_make_random_key(context, global_params.enctype, &key);
if (retval) {
goto cleanup;
}
kvno = 1; /* New key is getting set */
retval = krb5_dbe_encrypt_key_data(context, master_keyblock,
&key, NULL, kvno,
&entry.key_data[entry.n_key_data - 1]);
krb5_free_keyblock_contents(context, &key);
if (retval) {
goto cleanup;
}
} else {
/*retval = krb5_c_make_random_key(context, 16, &key) ;*/
iargs.ctx = context;
iargs.rblock = pblock;
iargs.dbentp = &entry;
/*
* Iterate through the key/salt list, ignoring salt types.
*/
if ((retval = krb5_keysalt_iterate(pblock->kslist,
pblock->nkslist,
1,
kdb_ldap_tgt_keysalt_iterate,
(krb5_pointer) &iargs)))
return retval;
}
break;
case MASTER_KEY:
/* Allocate memory for storing the key */
if ((entry.key_data = (krb5_key_data *) malloc(
sizeof(krb5_key_data))) == NULL) {
retval = ENOMEM;
goto cleanup;
}
memset(entry.key_data, 0, sizeof(krb5_key_data));
entry.n_key_data++;
kvno = 1; /* New key is getting set */
retval = krb5_dbe_encrypt_key_data(context, pblock->key,
master_keyblock, NULL, kvno,
&entry.key_data[entry.n_key_data - 1]);
if (retval) {
goto cleanup;
}
/*
* There should always be at least one "active" mkey so creating the
* KRB5_TL_ACTKVNO entry now so the initial mkey is active.
*/
actkvno.next = NULL;
actkvno.act_kvno = kvno;
actkvno.act_time = now;
retval = krb5_dbe_update_actkvno(context, &entry, &actkvno);
if (retval)
goto cleanup;
break;
case NULL_KEY:
default:
break;
} /* end of switch */
retval = krb5_ldap_put_principal(context, &entry, NULL);
if (retval) {
com_err(NULL, retval, _("while adding entries to database"));
goto cleanup;
}
cleanup:
krb5_dbe_free_contents(context, &entry);
return retval;
}
/*
* This function destroys the realm object and the associated principals
*/
void
kdb5_ldap_destroy(int argc, char *argv[])
{
extern char *optarg;
extern int optind;
int optchar = 0;
char buf[5] = {0};
krb5_error_code retval = 0;
int force = 0;
int mask = 0;
kdb5_dal_handle *dal_handle = NULL;
krb5_ldap_context *ldap_context = NULL;
optind = 1;
while ((optchar = getopt(argc, argv, "f")) != -1) {
switch (optchar) {
case 'f':
force++;
break;
case '?':
default:
db_usage(DESTROY_REALM);
return;
/*NOTREACHED*/
}
}
if (!force) {
printf(_("Deleting KDC database of '%s', are you sure?\n"),
global_params.realm);
printf(_("(type 'yes' to confirm)? "));
if (fgets(buf, sizeof(buf), stdin) == NULL) {
exit_status++;
return;
}
if (strcmp(buf, yes)) {
exit_status++;
return;
}
printf(_("OK, deleting database of '%s'...\n"), global_params.realm);
}
dal_handle = util_context->dal_handle;
ldap_context = (krb5_ldap_context *) dal_handle->db_context;
if (!(ldap_context)) {
com_err(progname, EINVAL, _("while initializing database"));
exit_status++;
return;
}
/* Read the kerberos container DN */
retval = krb5_ldap_read_krbcontainer_dn(util_context,
&ldap_context->container_dn);
if (retval) {
com_err(progname, retval,
_("while reading kerberos container information"));
exit_status++;
return;
}
/* Read the Realm information from the LDAP Server */
if ((retval = krb5_ldap_read_realm_params(util_context, global_params.realm,
&(ldap_context->lrparams), &mask)) != 0) {
com_err(progname, retval, _("while reading realm information"));
exit_status++;
return;
}
/* Delete the realm container and all the associated principals */
retval = krb5_ldap_delete_realm(util_context, global_params.realm);
if (retval) {
com_err(progname, retval,
_("deleting database of '%s'"), global_params.realm);
exit_status++;
return;
}
printf(_("** Database of '%s' destroyed.\n"), global_params.realm);
return;
}
|