ad_id.c revision 3d28e0e560b787b5c57ed7327d184310342a7e38
/*
SSSD
Authors:
Stephen Gallagher <sgallagh@redhat.com>
Copyright (C) 2012 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/>.
*/
#include "util/util.h"
#include "providers/ad/ad_common.h"
#include "providers/ad/ad_id.h"
struct ad_handle_acct_info_state {
struct be_req *breq;
struct be_acct_req *ar;
struct sdap_id_ctx *ctx;
struct sdap_id_conn_ctx **conn;
struct sdap_domain *sdom;
size_t cindex;
int dp_error;
const char *err;
};
static errno_t ad_handle_acct_info_step(struct tevent_req *req);
static void ad_handle_acct_info_done(struct tevent_req *subreq);
struct tevent_req *
ad_handle_acct_info_send(TALLOC_CTX *mem_ctx,
struct be_req *breq,
struct be_acct_req *ar,
struct sdap_id_ctx *ctx,
struct sdap_domain *sdom,
struct sdap_id_conn_ctx **conn)
{
struct tevent_req *req;
struct ad_handle_acct_info_state *state;
struct be_ctx *be_ctx = be_req_get_be_ctx(breq);
errno_t ret;
req = tevent_req_create(mem_ctx, &state, struct ad_handle_acct_info_state);
if (req == NULL) {
return NULL;
}
state->breq = breq;
state->ar = ar;
state->ctx = ctx;
state->sdom = sdom;
state->conn = conn;
state->cindex = 0;
ret = ad_handle_acct_info_step(req);
if (ret == EOK) {
tevent_req_done(req);
tevent_req_post(req, be_ctx->ev);
} else if (ret != EAGAIN) {
tevent_req_error(req, ret);
tevent_req_post(req, be_ctx->ev);
}
/* Lookup in progress */
return req;
}
static errno_t
ad_handle_acct_info_step(struct tevent_req *req)
{
struct tevent_req *subreq;
struct ad_handle_acct_info_state *state = tevent_req_data(req,
struct ad_handle_acct_info_state);
bool noexist_delete = false;
if (state->conn[state->cindex] == NULL) {
return EOK;
}
if (state->conn[state->cindex+1] == NULL) {
noexist_delete = true;
}
subreq = sdap_handle_acct_req_send(state, state->breq,
state->ar, state->ctx,
state->sdom,
state->conn[state->cindex],
noexist_delete);
if (req == NULL) {
return ENOMEM;
}
tevent_req_set_callback(subreq, ad_handle_acct_info_done, req);
return EAGAIN;
}
static void
ad_handle_acct_info_done(struct tevent_req *subreq)
{
errno_t ret;
int dp_error;
int sdap_err;
const char *err;
struct tevent_req *req = tevent_req_callback_data(subreq,
struct tevent_req);
struct ad_handle_acct_info_state *state = tevent_req_data(req,
struct ad_handle_acct_info_state);
ret = sdap_handle_acct_req_recv(subreq, &dp_error, &err, &sdap_err);
talloc_zfree(subreq);
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
if (sdap_err == EOK) {
tevent_req_done(req);
return;
} else if (sdap_err != ENOENT) {
tevent_req_error(req, EIO);
return;
}
/* Ret is only ENOENT now. Try the next connection */
state->cindex++;
ret = ad_handle_acct_info_step(req);
if (ret != EAGAIN) {
/* No additional search in progress. Save the last
* error status, we'll be returning it.
*/
state->dp_error = dp_error;
state->err = err;
if (ret == EOK) {
/* No more connections */
tevent_req_done(req);
} else {
tevent_req_error(req, ret);
}
return;
}
/* Another lookup in progress */
}
errno_t
ad_handle_acct_info_recv(struct tevent_req *req,
int *_dp_error, const char **_err)
{
struct ad_handle_acct_info_state *state = tevent_req_data(req,
struct ad_handle_acct_info_state);
if (_dp_error) {
*_dp_error = state->dp_error;
}
if (_err) {
*_err = state->err;
}
TEVENT_REQ_RETURN_ON_ERROR(req);
return EOK;
}
struct sdap_id_conn_ctx **
get_conn_list(struct be_req *breq, struct ad_id_ctx *ad_ctx,
struct sss_domain_info *dom, struct be_acct_req *ar)
{
struct sdap_id_conn_ctx **clist;
int i=0;
/* LDAP, GC, sentinel */
clist = talloc_zero_array(breq, struct sdap_id_conn_ctx *, 3);
if (clist == NULL) return NULL;
switch (ar->entry_type & BE_REQ_TYPE_MASK) {
case BE_REQ_USER: /* user */
case BE_REQ_BY_SECID: /* by SID */
case BE_REQ_USER_AND_GROUP: /* get SID */
case BE_REQ_GROUP: /* group */
case BE_REQ_INITGROUPS: /* init groups for user */
if (ad_ctx->gc_ctx && IS_SUBDOMAIN(dom)) {
clist[i] = ad_ctx->gc_ctx;
i++;
} else {
clist[i] = ad_ctx->ldap_ctx;
}
break;
default:
clist[0] = ad_ctx->ldap_ctx;
break;
}
return clist;
}
static void ad_account_info_complete(struct tevent_req *req);
void
ad_account_info_handler(struct be_req *be_req)
{
struct ad_id_ctx *ad_ctx;
struct be_acct_req *ar;
struct sdap_id_ctx *sdap_id_ctx;
struct be_ctx *be_ctx = be_req_get_be_ctx(be_req);
struct tevent_req *req;
struct sss_domain_info *dom;
struct sdap_domain *sdom;
struct sdap_id_conn_ctx **clist;
errno_t ret;
ad_ctx = talloc_get_type(be_ctx->bet_info[BET_ID].pvt_bet_data,
struct ad_id_ctx);
ar = talloc_get_type(be_req_get_data(be_req), struct be_acct_req);
sdap_id_ctx = ad_ctx->sdap_id_ctx;
if (be_is_offline(be_ctx)) {
return be_req_terminate(be_req, DP_ERR_OFFLINE, EAGAIN, "Offline");
}
dom = be_ctx->domain;
if (strcasecmp(ar->domain, be_ctx->domain->name) != 0) {
/* Subdomain request, verify subdomain */
dom = find_subdomain_by_name(be_ctx->domain, ar->domain, true);
}
if (dom == NULL) {
ret = EINVAL;
goto fail;
}
/* Determine whether to connect to GC, LDAP or try both */
clist = get_conn_list(be_req, ad_ctx, dom, ar);
if (clist == NULL) {
ret = EIO;
goto fail;
}
sdom = sdap_domain_get(sdap_id_ctx->opts, dom);
if (sdom == NULL) {
ret = EIO;
goto fail;
}
req = ad_handle_acct_info_send(be_req, be_req, ar, sdap_id_ctx,
sdom, clist);
if (req == NULL) {
ret = ENOMEM;
goto fail;
}
tevent_req_set_callback(req, ad_account_info_complete, be_req);
return;
fail:
be_req_terminate(be_req, DP_ERR_FATAL, ret, NULL);
}
static void
ad_account_info_complete(struct tevent_req *req)
{
struct be_req *be_req;
errno_t ret;
int dp_error;
const char *error_text = "Internal error";
const char *req_error_text;
be_req = tevent_req_callback_data(req, struct be_req);
ret = ad_handle_acct_info_recv(req, &dp_error, &req_error_text);
talloc_zfree(req);
if (dp_error == DP_ERR_OK) {
if (ret == EOK) {
error_text = NULL;
} else {
DEBUG(SSSDBG_FATAL_FAILURE,
("Bug: dp_error is OK on failed request"));
dp_error = DP_ERR_FATAL;
error_text = req_error_text;
}
} else if (dp_error == DP_ERR_OFFLINE) {
error_text = "Offline";
} else if (dp_error == DP_ERR_FATAL && ret == ENOMEM) {
error_text = "Out of memory";
} else {
error_text = req_error_text;
}
return be_req_terminate(be_req, dp_error, ret, error_text);
}
void
ad_check_online(struct be_req *be_req)
{
struct ad_id_ctx *ad_ctx;
struct be_ctx *be_ctx = be_req_get_be_ctx(be_req);
ad_ctx = talloc_get_type(be_ctx->bet_info[BET_ID].pvt_bet_data,
struct ad_id_ctx);
return sdap_do_online_check(be_req, ad_ctx->sdap_id_ctx);
}