Move ldap_be.c into ldap/ldap_auth.c

1 files changed, 0 insertions, 773 deletions

diff --git a/server/providers/ldap_be.c b/server/providers/ldap_be.c
deleted file mode 100644
index 365b7d0b..00000000
--- a/server/providers/ldap_be.c
+++ /dev/null
@@ -1,773 +0,0 @@
-/*
-    SSSD
-
-    LDAP Backend Module
-
-    Authors:
-        Sumit Bose <sbose@redhat.com>
-
-    Copyright (C) 2008 Red Hat
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifdef WITH_MOZLDAP
-#define LDAP_OPT_SUCCESS LDAP_SUCCESS
-#define LDAP_TAG_EXOP_MODIFY_PASSWD_ID  ((ber_tag_t) 0x80U)
-#define LDAP_TAG_EXOP_MODIFY_PASSWD_OLD ((ber_tag_t) 0x81U)
-#define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW ((ber_tag_t) 0x82U)
-#endif
-
-#include <errno.h>
-#include <ldap.h>
-#include <sys/time.h>
-
-#include <security/pam_modules.h>
-
-#include "util/util.h"
-#include "providers/dp_backend.h"
-#include "db/sysdb.h"
-#include "../sss_client/sss_cli.h"
-
-struct sdap_ctx {
-    char *ldap_uri;
-    char *default_bind_dn;
-    char *user_search_base;
-    char *user_name_attribute;
-    char *user_object_class;
-    char *default_authtok_type;
-    uint32_t default_authtok_size;
-    char *default_authtok;
-    int network_timeout;
-    int opt_timeout;
-};
-
-struct sdap_ops;
-struct sdap_req;
-
-struct sdap_ops {
-    void (*op)(struct sdap_req *);
-    struct sdap_ops *next;
-};
-
-enum sdap_int_ops {
-    SDAP_NOOP = 0x0000,
-    SDAP_OP_INIT = 0x0001,
-    SDAP_CHECK_INIT_RESULT,
-    SDAP_CHECK_STD_BIND,
-    SDAP_CHECK_SEARCH_DN_RESULT,
-    SDAP_CHECK_USER_BIND
-};
-
-struct sdap_req {
-    struct be_req *req;
-    struct pam_data *pd;
-    struct sdap_ctx *sdap_ctx;
-    LDAP *ldap;
-    struct sdap_ops *ops;
-    char *user_dn;
-    tevent_fd_handler_t next_task;
-    enum sdap_int_ops next_op;
-    int msgid;
-};
-
-static int schedule_next_task(struct sdap_req *lr, struct timeval tv,
-                              tevent_timer_handler_t task)
-{
-    int ret;
-    struct tevent_timer *te;
-    struct timeval timeout;
-
-    ret = gettimeofday(&timeout, NULL);
-    if (ret == -1) {
-        DEBUG(1, ("gettimeofday failed [%d][%s].\n", errno, strerror(errno)));
-        return ret;
-    }
-    timeout.tv_sec += tv.tv_sec;
-    timeout.tv_usec += tv.tv_usec;
-
-
-    te = tevent_add_timer(lr->req->be_ctx->ev, lr, timeout, task, lr);
-    if (te == NULL) {
-        return EIO;
-    }
-
-    return EOK;
-}
-
-static int wait_for_fd(struct sdap_req *lr)
-{
-    int ret;
-    int fd;
-    struct tevent_fd *fde;
-
-    ret = ldap_get_option(lr->ldap, LDAP_OPT_DESC, &fd);
-    if (ret != LDAP_OPT_SUCCESS) {
-        DEBUG(1, ("ldap_get_option failed.\n"));
-        return ret;
-    }
-
-    fde = tevent_add_fd(lr->req->be_ctx->ev, lr, fd, TEVENT_FD_READ, lr->next_task, lr);
-    if (fde == NULL) {
-        return EIO;
-    }
-
-    return EOK;
-}
-
-static int sdap_pam_chauthtok(struct sdap_req *lr)
-{
-    BerElement *ber=NULL;
-    int ret;
-    int pam_status=PAM_SUCCESS;
-    struct berval *bv;
-    int msgid;
-    LDAPMessage *result=NULL;
-    int ldap_ret;
-
-    ber = ber_alloc_t( LBER_USE_DER );
-    if (ber == NULL) {
-        DEBUG(1, ("ber_alloc_t failed.\n"));
-        return PAM_SYSTEM_ERR;
-    }
-
-    ret = ber_printf( ber, "{tststs}", LDAP_TAG_EXOP_MODIFY_PASSWD_ID,
-                     lr->user_dn,
-                     LDAP_TAG_EXOP_MODIFY_PASSWD_OLD, lr->pd->authtok,
-                     LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, lr->pd->newauthtok);
-    if (ret == -1) {
-        DEBUG(1, ("ber_printf failed.\n"));
-        pam_status = PAM_SYSTEM_ERR;
-        goto cleanup;
-    }
-
-    ret = ber_flatten(ber, &bv);
-    if (ret == -1) {
-        DEBUG(1, ("ber_flatten failed.\n"));
-        pam_status = PAM_SYSTEM_ERR;
-        goto cleanup;
-    }
-
-    ret = ldap_extended_operation(lr->ldap, LDAP_EXOP_MODIFY_PASSWD, bv,
-                                  NULL, NULL, &msgid);
-    if (ret != LDAP_SUCCESS) {
-        DEBUG(1, ("ldap_extended_operation failed.\n"));
-        pam_status = PAM_SYSTEM_ERR;
-        goto cleanup;
-    }
-
-    ret = ldap_result(lr->ldap, msgid, FALSE, NULL, &result);
-    if (ret == -1) {
-        DEBUG(1, ("ldap_result failed.\n"));
-        pam_status = PAM_SYSTEM_ERR;
-        goto cleanup;
-    }
-    ret = ldap_parse_result(lr->ldap, result, &ldap_ret, NULL, NULL, NULL,
-                            NULL, 0);
-    if (ret != LDAP_SUCCESS) {
-        DEBUG(1, ("ldap_parse_result failed.\n"));
-        pam_status = PAM_SYSTEM_ERR;
-        goto cleanup;
-    }
-    DEBUG(3, ("LDAP_EXOP_MODIFY_PASSWD result: [%d][%s]\n", ldap_ret,
-              ldap_err2string(ldap_ret)));
-
-    ldap_msgfree(result);
-
-    if (ldap_ret != LDAP_SUCCESS) pam_status = PAM_SYSTEM_ERR;
-
-cleanup:
-    ber_bvfree(bv);
-    ber_free(ber, 1);
-    return pam_status;
-}
-
-static int sdap_init(struct sdap_req *lr)
-{
-    int ret;
-    int status=EOK;
-    int ldap_vers = LDAP_VERSION3;
-    int msgid;
-    struct timeval network_timeout;
-    struct timeval opt_timeout;
-
-    ret = ldap_initialize(&(lr->ldap), lr->sdap_ctx->ldap_uri);
-    if (ret != LDAP_SUCCESS) {
-        DEBUG(1, ("ldap_initialize failed: %s\n", strerror(errno)));
-        return EIO;
-    }
-
-    /* LDAPv3 is needed for TLS */
-    ret = ldap_set_option(lr->ldap, LDAP_OPT_PROTOCOL_VERSION, &ldap_vers);
-    if (ret != LDAP_OPT_SUCCESS) {
-        DEBUG(1, ("ldap_set_option failed: %s\n", ldap_err2string(ret)));
-        status = EIO;
-        goto cleanup;
-    }
-
-    network_timeout.tv_sec = lr->sdap_ctx->network_timeout;
-    network_timeout.tv_usec = 0;
-    opt_timeout.tv_sec = lr->sdap_ctx->opt_timeout;
-    opt_timeout.tv_usec = 0;
-    ret = ldap_set_option(lr->ldap, LDAP_OPT_NETWORK_TIMEOUT, &network_timeout);
-    if (ret != LDAP_OPT_SUCCESS) {
-        DEBUG(1, ("ldap_set_option failed: %s\n", ldap_err2string(ret)));
-        status = EIO;
-        goto cleanup;
-    }
-    ret = ldap_set_option(lr->ldap, LDAP_OPT_TIMEOUT, &opt_timeout);
-    if (ret != LDAP_OPT_SUCCESS) {
-        DEBUG(1, ("ldap_set_option failed: %s\n", ldap_err2string(ret)));
-        status = EIO;
-        goto cleanup;
-    }
-
-    /* For now TLS is forced. Maybe it would be necessary to make this
-     * configurable to allow people to expose their passwords over the
-     * network. */
-    ret = ldap_start_tls(lr->ldap, NULL, NULL, &msgid);
-    if (ret != LDAP_SUCCESS) {
-        DEBUG(1, ("ldap_start_tls failed: [%d][%s]\n", ret,
-                  ldap_err2string(ret)));
-        if (ret == LDAP_SERVER_DOWN) {
-            status = EAGAIN;
-        } else {
-            status = EIO;
-        }
-        goto cleanup;
-    }
-
-    lr->msgid = msgid;
-
-    return EOK;
-
-cleanup:
-    ldap_unbind_ext(lr->ldap, NULL, NULL);
-    lr->ldap = NULL;
-    return status;
-}
-
-static int sdap_bind(struct sdap_req *lr)
-{
-    int ret;
-    int msgid;
-    char *dn=NULL;
-    struct berval pw;
-
-    pw.bv_len = 0;
-    pw.bv_val = NULL;
-
-    if (lr->user_dn != NULL) {
-        dn = lr->user_dn;
-        pw.bv_len = lr->pd->authtok_size;
-        pw.bv_val = (char *) lr->pd->authtok;
-    }
-    if (lr->user_dn == NULL && lr->sdap_ctx->default_bind_dn != NULL) {
-        dn = lr->sdap_ctx->default_bind_dn;
-        pw.bv_len = lr->sdap_ctx->default_authtok_size;
-        pw.bv_val = lr->sdap_ctx->default_authtok;
-    }
-
-    DEBUG(3, ("Trying to bind as [%s][%*s]\n", dn, pw.bv_len, pw.bv_val));
-    ret = ldap_sasl_bind(lr->ldap, dn, LDAP_SASL_SIMPLE, &pw, NULL, NULL,
-                         &msgid);
-    if (ret == -1 || msgid == -1) {
-        DEBUG(1, ("ldap_bind failed\n"));
-        return LDAP_OTHER;
-    }
-    lr->msgid = msgid;
-    return LDAP_SUCCESS;
-}
-
-static void sdap_pam_loop(struct tevent_context *ev, struct tevent_fd *te,
-                         uint16_t fd, void *pvt)
-{
-    int ret;
-    int pam_status=PAM_SUCCESS;
-    int ldap_ret;
-    struct sdap_req *lr;
-    struct pam_data *pd;
-    struct be_req *req;
-    LDAPMessage *result=NULL;
-    LDAPMessage *msg=NULL;
-    struct timeval no_timeout={0, 0};
-    char *errmsgp = NULL;
-/* FIXME: user timeout form config */
-    char *filter=NULL;
-    char *attrs[] = { LDAP_NO_ATTRS, NULL };
-
-    lr = talloc_get_type(pvt, struct sdap_req);
-
-    switch (lr->next_op) {
-        case SDAP_OP_INIT:
-            ret = sdap_init(lr);
-            if (ret != EOK) {
-                DEBUG(1, ("sdap_init failed.\n"));
-                lr->ldap = NULL;
-                if (ret == EAGAIN) {
-                    pam_status = PAM_AUTHINFO_UNAVAIL;
-                } else {
-                    pam_status = PAM_SYSTEM_ERR;
-                }
-                goto done;
-            }
-        case SDAP_CHECK_INIT_RESULT:
-            ret = ldap_result(lr->ldap, lr->msgid, FALSE, &no_timeout, &result);
-            if (ret == -1) {
-                DEBUG(1, ("ldap_result failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-            if (ret == 0) {
-                DEBUG(1, ("ldap_result not ready yet, waiting.\n"));
-                lr->next_task = sdap_pam_loop;
-                lr->next_op = SDAP_CHECK_INIT_RESULT;
-                ret = wait_for_fd(lr);
-                if (ret != EOK) {
-                    DEBUG(1, ("schedule_next_task failed.\n"));
-                    pam_status = PAM_SYSTEM_ERR;
-                    goto done;
-                }
-                return;
-            }
-
-            ret = ldap_parse_result(lr->ldap, result, &ldap_ret, NULL, NULL, NULL, NULL, 0);
-            if (ret != LDAP_SUCCESS) {
-                DEBUG(1, ("ldap_parse_result failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-            DEBUG(3, ("ldap_start_tls result: [%d][%s]\n", ldap_ret, ldap_err2string(ldap_ret)));
-
-            if (ldap_ret != LDAP_SUCCESS) {
-                DEBUG(1, ("setting up TLS failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-
-/* FIXME: take care that ldap_install_tls might block */
-            ret = ldap_install_tls(lr->ldap);
-            if (ret != LDAP_SUCCESS) {
-                DEBUG(1, ("ldap_install_tls failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-
-            ret = sdap_bind(lr);
-            if (ret != LDAP_SUCCESS) {
-                DEBUG(1, ("sdap_bind failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-        case SDAP_CHECK_STD_BIND:
-            ret = ldap_result(lr->ldap, lr->msgid, FALSE, &no_timeout, &result);
-            if (ret == -1) {
-                DEBUG(1, ("ldap_result failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-            if (ret == 0) {
-                DEBUG(1, ("ldap_result not ready yet, waiting.\n"));
-                lr->next_task = sdap_pam_loop;
-                lr->next_op = SDAP_CHECK_STD_BIND;
-                ret = wait_for_fd(lr);
-                if (ret != EOK) {
-                    DEBUG(1, ("schedule_next_task failed.\n"));
-                    pam_status = PAM_SYSTEM_ERR;
-                    goto done;
-                }
-                return;
-            }
-
-            ret = ldap_parse_result(lr->ldap, result, &ldap_ret, NULL, &errmsgp,
-                                    NULL, NULL, 0);
-            if (ret != LDAP_SUCCESS) {
-                DEBUG(1, ("ldap_parse_result failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-            DEBUG(3, ("Bind result: [%d][%s][%s]\n", ldap_ret,
-                      ldap_err2string(ldap_ret), errmsgp));
-            if (ldap_ret != LDAP_SUCCESS) {
-                DEBUG(1, ("bind failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-
-            filter = talloc_asprintf(lr->sdap_ctx,
-                                     "(&(%s=%s)(objectclass=%s))",
-                                     lr->sdap_ctx->user_name_attribute,
-                                     lr->pd->user,
-                                     lr->sdap_ctx->user_object_class);
-
-            DEBUG(4, ("calling ldap_search_ext with [%s].\n", filter));
-            ret = ldap_search_ext(lr->ldap,
-                                  lr->sdap_ctx->user_search_base,
-                                  LDAP_SCOPE_SUBTREE,
-                                  filter,
-                                  attrs,
-                                  TRUE,
-                                  NULL,
-                                  NULL,
-                                  NULL,
-                                  0,
-                                  &(lr->msgid));
-            if (ret != LDAP_SUCCESS) {
-                DEBUG(1, ("ldap_search_ext failed [%d][%s].\n", ret, ldap_err2string(ret)));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-        case SDAP_CHECK_SEARCH_DN_RESULT:
-            ret = ldap_result(lr->ldap, lr->msgid, TRUE, &no_timeout, &result);
-            if (ret == -1) {
-                DEBUG(1, ("ldap_result failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-            if (ret == 0) {
-                DEBUG(1, ("ldap_result not ready yet, waiting.\n"));
-                lr->next_task = sdap_pam_loop;
-                lr->next_op = SDAP_CHECK_SEARCH_DN_RESULT;
-                ret = wait_for_fd(lr);
-                if (ret != EOK) {
-                    DEBUG(1, ("schedule_next_task failed.\n"));
-                    pam_status = PAM_SYSTEM_ERR;
-                    goto done;
-                }
-                return;
-            }
-
-            msg = ldap_first_message(lr->ldap, result);
-            if (msg == NULL) {
-                DEBUG(1, ("ldap_first_message failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-
-            do {
-                switch ( ldap_msgtype(msg) ) {
-                    case LDAP_RES_SEARCH_ENTRY:
-                        if (lr->user_dn != NULL) {
-                            DEBUG(1, ("Found more than one object with filter [%s].\n",
-                                      filter));
-                            pam_status = PAM_SYSTEM_ERR;
-                            goto done;
-                        }
-                        lr->user_dn = ldap_get_dn(lr->ldap, msg);
-                        if (lr->user_dn == NULL) {
-                            DEBUG(1, ("ldap_get_dn failed.\n"));
-                            pam_status = PAM_SYSTEM_ERR;
-                            goto done;
-                        }
-
-                        if ( *(lr->user_dn) == '\0' ) {
-                            DEBUG(1, ("No user found.\n"));
-                            pam_status = PAM_USER_UNKNOWN;
-                            goto done;
-                        }
-                        DEBUG(3, ("Found dn: %s\n",lr->user_dn));
-
-                        ldap_msgfree(result);
-                        result = NULL;
-                        break;
-                    default:
-                        DEBUG(3, ("ignoring message with type %d.\n", ldap_msgtype(msg)));
-                }
-            } while( (msg=ldap_next_message(lr->ldap, msg)) != NULL );
-
-            switch (lr->pd->cmd) {
-                case SSS_PAM_AUTHENTICATE:
-                case SSS_PAM_CHAUTHTOK:
-                    break;
-                case SSS_PAM_ACCT_MGMT:
-                case SSS_PAM_SETCRED:
-                case SSS_PAM_OPEN_SESSION:
-                case SSS_PAM_CLOSE_SESSION:
-                    pam_status = PAM_SUCCESS;
-                    goto done;
-                    break;
-                default:
-                    DEBUG(1, ("Unknown pam command %d.\n", lr->pd->cmd));
-                    pam_status = PAM_SYSTEM_ERR;
-                    goto done;
-            }
-
-            ret = sdap_bind(lr);
-            if (ret != LDAP_SUCCESS) {
-                DEBUG(1, ("sdap_bind failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-        case SDAP_CHECK_USER_BIND:
-            ret = ldap_result(lr->ldap, lr->msgid, FALSE, &no_timeout, &result);
-            if (ret == -1) {
-                DEBUG(1, ("ldap_result failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-            if (ret == 0) {
-                DEBUG(1, ("ldap_result not ready yet, waiting.\n"));
-                lr->next_task = sdap_pam_loop;
-                lr->next_op = SDAP_CHECK_USER_BIND;
-                ret = wait_for_fd(lr);
-                if (ret != EOK) {
-                    DEBUG(1, ("schedule_next_task failed.\n"));
-                    pam_status = PAM_SYSTEM_ERR;
-                    goto done;
-                }
-                return;
-            }
-
-            ret = ldap_parse_result(lr->ldap, result, &ldap_ret, NULL, &errmsgp,
-                                    NULL, NULL, 0);
-            if (ret != LDAP_SUCCESS) {
-                DEBUG(1, ("ldap_parse_result failed.\n"));
-                pam_status = PAM_SYSTEM_ERR;
-                goto done;
-            }
-            DEBUG(3, ("Bind result: [%d][%s][%s]\n", ldap_ret,
-                      ldap_err2string(ldap_ret), errmsgp));
-            switch (ldap_ret) {
-                case LDAP_SUCCESS:
-                    pam_status = PAM_SUCCESS;
-                    break;
-                case LDAP_INVALID_CREDENTIALS:
-                    pam_status = PAM_CRED_INSUFFICIENT;
-                    goto done;
-                    break;
-                default:
-                    pam_status = PAM_SYSTEM_ERR;
-                    goto done;
-            }
-
-            switch (lr->pd->cmd) {
-                case SSS_PAM_AUTHENTICATE:
-                    pam_status = PAM_SUCCESS;
-                    break;
-                case SSS_PAM_CHAUTHTOK:
-                    pam_status = sdap_pam_chauthtok(lr);
-                    break;
-                case SSS_PAM_ACCT_MGMT:
-                case SSS_PAM_SETCRED:
-                case SSS_PAM_OPEN_SESSION:
-                case SSS_PAM_CLOSE_SESSION:
-                    pam_status = PAM_SUCCESS;
-                    break;
-                default:
-                    DEBUG(1, ("Unknown pam command %d.\n", lr->pd->cmd));
-                    pam_status = PAM_SYSTEM_ERR;
-            }
-            break;
-        default:
-            DEBUG(1, ("Unknown ldap backend operation %d.\n", lr->next_op));
-            pam_status = PAM_SYSTEM_ERR;
-    }
-
-done:
-    ldap_memfree(errmsgp);
-    ldap_msgfree(result);
-    talloc_free(filter);
-    if (lr->ldap != NULL) ldap_unbind_ext(lr->ldap, NULL, NULL);
-    req = lr->req;
-    pd = talloc_get_type(lr->req->req_data, struct pam_data);
-    pd->pam_status = pam_status;
-
-    talloc_free(lr);
-
-    req->fn(req, pam_status, NULL);
-}
-
-static void sdap_start(struct tevent_context *ev, struct tevent_timer *te,
-                       struct timeval tv, void *pvt)
-{
-    int ret;
-    int pam_status;
-    struct sdap_req *lr;
-    struct be_req *req;
-    struct pam_data *pd;
-
-    lr = talloc_get_type(pvt, struct sdap_req);
-
-    ret = sdap_init(lr);
-    if (ret != EOK) {
-        DEBUG(1, ("sdap_init failed.\n"));
-        lr->ldap = NULL;
-        if (ret == EAGAIN) {
-            pam_status = PAM_AUTHINFO_UNAVAIL;
-        } else {
-            pam_status = PAM_SYSTEM_ERR;
-        }
-        goto done;
-    }
-
-    lr->next_task = sdap_pam_loop;
-    lr->next_op = SDAP_CHECK_INIT_RESULT;
-    ret = wait_for_fd(lr);
-    if (ret != EOK) {
-        DEBUG(1, ("schedule_next_task failed.\n"));
-        pam_status = PAM_SYSTEM_ERR;
-        goto done;
-    }
-    return;
-
-done:
-    if (lr->ldap != NULL ) ldap_unbind_ext(lr->ldap, NULL, NULL);
-    req = lr->req;
-    pd = talloc_get_type(lr->req->req_data, struct pam_data);
-    pd->pam_status = pam_status;
-
-    talloc_free(lr);
-
-    req->fn(req, pam_status, NULL);
-}
-
-static void sdap_pam_handler(struct be_req *req)
-{
-    int ret;
-    int pam_status=PAM_SUCCESS;
-    struct sdap_req *lr;
-    struct sdap_ctx *sdap_ctx;
-    struct pam_data *pd;
-    struct timeval timeout;
-
-    pd = talloc_get_type(req->req_data, struct pam_data);
-
-    sdap_ctx = talloc_get_type(req->be_ctx->pvt_auth_data, struct sdap_ctx);
-
-    lr = talloc(req, struct sdap_req);
-
-    lr->ldap = NULL;
-    lr->req = req;
-    lr->pd = pd;
-    lr->sdap_ctx = sdap_ctx;
-    lr->user_dn = NULL;
-    lr->next_task = NULL;
-    lr->next_op = SDAP_NOOP;
-
-    timeout.tv_sec=0;
-    timeout.tv_usec=0;
-    ret = schedule_next_task(lr, timeout, sdap_start);
-    if (ret != EOK) {
-        DEBUG(1, ("schedule_next_task failed.\n"));
-        pam_status = PAM_SYSTEM_ERR;
-        goto done;
-    }
-
-    return;
-
-done:
-    talloc_free(lr);
-
-    pd->pam_status = pam_status;
-    req->fn(req, pam_status, NULL);
-}
-
-static void sdap_shutdown(struct be_req *req)
-{
-    /* TODO: Clean up any internal data */
-    req->fn(req, EOK, NULL);
-}
-
-struct be_auth_ops sdap_mod_ops = {
-    .pam_handler = sdap_pam_handler,
-    .finalize = sdap_shutdown
-};
-
-
-int sssm_ldap_auth_init(struct be_ctx *bectx,
-                        struct be_auth_ops **ops,
-                        void **pvt_data)
-{
-    struct sdap_ctx *ctx;
-    char *ldap_uri;
-    char *default_bind_dn;
-    char *default_authtok_type;
-    char *default_authtok;
-    char *user_search_base;
-    char *user_name_attribute;
-    char *user_object_class;
-    int network_timeout;
-    int opt_timeout;
-    int ret;
-
-    ctx = talloc(bectx, struct sdap_ctx);
-    if (!ctx) {
-        return ENOMEM;
-    }
-
-/* TODO: add validation checks for ldapUri, user_search_base,
- * user_name_attribute, etc */
-    ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path,
-                           "ldapUri", "ldap://localhost", &ldap_uri);
-    if (ret != EOK) goto done;
-    ctx->ldap_uri = ldap_uri;
-
-    ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path,
-                           "defaultBindDn", NULL, &default_bind_dn);
-    if (ret != EOK) goto done;
-    ctx->default_bind_dn = default_bind_dn;
-
-    ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path,
-                           "defaultAuthtokType", NULL, &default_authtok_type);
-    if (ret != EOK) goto done;
-    ctx->default_authtok_type = default_authtok_type;
-
-    ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path,
-                           "userSearchBase", NULL, &user_search_base);
-    if (ret != EOK) goto done;
-    if (user_search_base == NULL) {
-        DEBUG(1, ("missing userSearchBase.\n"));
-        ret = EINVAL;
-        goto done;
-    }
-    ctx->user_search_base = user_search_base;
-
-    ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path,
-                           "userNameAttribute", "uid", &user_name_attribute);
-    if (ret != EOK) goto done;
-    ctx->user_name_attribute = user_name_attribute;
-
-    ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path,
-                           "userObjectClass", "posixAccount",
-                           &user_object_class);
-    if (ret != EOK) goto done;
-    ctx->user_object_class = user_object_class;
-
-/* TODO: better to have a blob object than a string here */
-    ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path,
-                           "defaultAuthtok", NULL, &default_authtok);
-    if (ret != EOK) goto done;
-    ctx->default_authtok = default_authtok;
-    ctx->default_authtok_size = (default_authtok==NULL?0:strlen(default_authtok));
-
-    ret = confdb_get_int(bectx->cdb, ctx, bectx->conf_path,
-                         "network_timeout", 5, &network_timeout);
-    if (ret != EOK) goto done;
-    ctx->network_timeout = network_timeout;
-
-    ret = confdb_get_int(bectx->cdb, ctx, bectx->conf_path,
-                         "opt_timeout", 5, &opt_timeout);
-    if (ret != EOK) goto done;
-    ctx->network_timeout = opt_timeout;
-
-    *ops = &sdap_mod_ops;
-    *pvt_data = ctx;
-    ret = EOK;
-
-done:
-    if (ret != EOK) {
-        talloc_free(ctx);
-    }
-    return ret;
-}