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e5291963a1
audit_as_req() callback has changed its signature with MIT krb5 commit 20991d55efbe1f987c1dbc1065f2d58c8f34031b in 2017, we should preserve the change for any newer DAL versions. Otherwise audit_as_req() callback would reference wrong data and we might crash. Fixes: https://pagure.io/freeipa/issue/8200 Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com> Reviewed-By: Christian Heimes <cheimes@redhat.com>
142 lines
4.3 KiB
C
142 lines
4.3 KiB
C
/*
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* MIT Kerberos KDC database backend for FreeIPA
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*
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* Authors: Simo Sorce <ssorce@redhat.com>
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*
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* Copyright (C) 2012 Simo Sorce, Red Hat
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* see file 'COPYING' for use and warranty information
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*
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* This program is free software you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "ipa_kdb.h"
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#include "ipa_pwd.h"
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void ipadb_audit_as_req(krb5_context kcontext,
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krb5_kdc_req *request,
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#if (KRB5_KDB_DAL_MAJOR_VERSION >= 7)
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const krb5_address *local_addr,
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const krb5_address *remote_addr,
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#endif
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krb5_db_entry *client,
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krb5_db_entry *server,
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krb5_timestamp authtime,
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krb5_error_code error_code)
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{
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const struct ipadb_global_config *gcfg;
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struct ipadb_context *ipactx;
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struct ipadb_e_data *ied;
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krb5_error_code kerr;
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if (!client) {
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return;
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}
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if (error_code != 0 &&
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error_code != KRB5KDC_ERR_PREAUTH_FAILED &&
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error_code != KRB5KRB_AP_ERR_BAD_INTEGRITY) {
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return;
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}
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ipactx = ipadb_get_context(kcontext);
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if (!ipactx) {
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return;
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}
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ied = (struct ipadb_e_data *)client->e_data;
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if (!ied) {
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return;
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}
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if (!ied->pol) {
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kerr = ipadb_get_ipapwd_policy(ipactx, ied->pw_policy_dn, &ied->pol);
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if (kerr != 0) {
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return;
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}
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}
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client->mask = 0;
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gcfg = ipadb_get_global_config(ipactx);
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if (gcfg == NULL)
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return;
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switch (error_code) {
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case 0:
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/* Check if preauth flag is specified (default), otherwise we have
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* no data to know if auth was successful or not */
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if (client->attributes & KRB5_KDB_REQUIRES_PRE_AUTH) {
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if (client->fail_auth_count != 0) {
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client->fail_auth_count = 0;
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client->mask |= KMASK_FAIL_AUTH_COUNT;
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}
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if (gcfg->disable_last_success) {
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break;
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}
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client->last_success = authtime;
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client->mask |= KMASK_LAST_SUCCESS;
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}
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break;
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case KRB5KDC_ERR_PREAUTH_FAILED:
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case KRB5KRB_AP_ERR_BAD_INTEGRITY:
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if (gcfg->disable_lockout) {
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break;
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}
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if (client->last_failed <= ied->last_admin_unlock) {
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/* Reset fail_auth_count, and admin unlocked the account */
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client->fail_auth_count = 0;
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client->mask |= KMASK_FAIL_AUTH_COUNT;
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}
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if (ied->pol->lockout_duration != 0 &&
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ied->pol->failcnt_interval != 0 &&
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client->last_failed + ied->pol->failcnt_interval < authtime) {
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/* Reset fail_auth_count, the interval's expired already */
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client->fail_auth_count = 0;
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client->mask |= KMASK_FAIL_AUTH_COUNT;
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}
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if (client->last_failed + ied->pol->lockout_duration > authtime &&
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(client->fail_auth_count >= ied->pol->max_fail &&
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ied->pol->max_fail != 0)) {
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/* client already locked, nothing more to do */
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break;
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}
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if (ied->pol->max_fail == 0 ||
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client->fail_auth_count < ied->pol->max_fail) {
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/* let's increase the fail counter */
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client->fail_auth_count++;
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client->mask |= KMASK_FAIL_AUTH_COUNT;
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}
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client->last_failed = authtime;
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client->mask |= KMASK_LAST_FAILED;
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break;
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default:
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krb5_klog_syslog(LOG_ERR,
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"File '%s' line %d: Got an unexpected value of "
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"error_code: %d\n", __FILE__, __LINE__, error_code);
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return;
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}
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if (client->mask) {
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kerr = ipadb_put_principal(kcontext, client, NULL);
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if (kerr != 0) {
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return;
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}
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}
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client->mask = 0;
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}
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