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/*
SSSD
IPA Identity Backend Module for sub-domains
Authors:
Sumit Bose <sbose@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 <errno.h>
#include "util/util.h"
#include "util/strtonum.h"
#include "db/sysdb.h"
#include "providers/ldap/ldap_common.h"
#include "providers/ldap/sdap_async.h"
#include "providers/ipa/ipa_id.h"
#include "providers/ipa/ipa_subdomains.h"
struct ipa_get_subdom_acct {
struct tevent_context *ev;
struct sdap_id_ctx *ctx;
struct sdap_id_op *op;
struct sysdb_ctx *sysdb;
struct sss_domain_info *domain;
int entry_type;
const char *filter;
int filter_type;
int dp_error;
};
static void ipa_get_subdom_acct_connected(struct tevent_req *subreq);
static void ipa_get_subdom_acct_done(struct tevent_req *subreq);
struct tevent_req *ipa_get_subdom_acct_send(TALLOC_CTX *memctx,
struct tevent_context *ev,
struct sdap_id_ctx *ctx,
struct be_acct_req *ar)
{
struct tevent_req *req;
struct ipa_get_subdom_acct *state;
struct tevent_req *subreq;
int ret;
req = tevent_req_create(memctx, &state, struct ipa_get_subdom_acct);
if (!req) return NULL;
state->ev = ev;
state->ctx = ctx;
state->dp_error = DP_ERR_FATAL;
state->op = sdap_id_op_create(state, state->ctx->conn_cache);
if (!state->op) {
DEBUG(SSSDBG_OP_FAILURE, ("sdap_id_op_create failed\n"));
ret = ENOMEM;
goto fail;
}
state->domain = new_subdomain(state, state->ctx->be->domain, ar->domain,
NULL,
get_flat_name_from_subdomain_name(ctx->be,ar->domain),
NULL);
if (state->domain == NULL) {
DEBUG(SSSDBG_OP_FAILURE, ("new_subdomain failed.\n"));
ret = ENOMEM;
goto fail;
}
state->sysdb = state->domain->sysdb;
state->entry_type = (ar->entry_type & BE_REQ_TYPE_MASK);
state->filter = ar->filter_value;
state->filter_type = ar->filter_type;
switch (state->entry_type) {
case BE_REQ_USER:
case BE_REQ_GROUP:
case BE_REQ_BY_SECID:
case BE_REQ_USER_AND_GROUP:
ret = EOK;
break;
case BE_REQ_INITGROUPS:
ret = ENOTSUP;
DEBUG(SSSDBG_TRACE_FUNC, ("Initgroups requests are not handled " \
"by the IPA provider but are resolved " \
"by the responder directly from the " \
"cache.\n"));
break;
default:
ret = EINVAL;
DEBUG(SSSDBG_OP_FAILURE, ("Invalid sub-domain request type.\n"));
}
if (ret != EOK) goto fail;
subreq = sdap_id_op_connect_send(state->op, state, &ret);
if (!subreq) {
goto fail;
}
tevent_req_set_callback(subreq, ipa_get_subdom_acct_connected, req);
return req;
fail:
tevent_req_error(req, ret);
tevent_req_post(req, ev);
return req;
}
static void ipa_get_subdom_acct_connected(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(subreq,
struct tevent_req);
struct ipa_get_subdom_acct *state = tevent_req_data(req,
struct ipa_get_subdom_acct);
int dp_error = DP_ERR_FATAL;
int ret;
char *endptr;
struct req_input *req_input;
ret = sdap_id_op_connect_recv(subreq, &dp_error);
talloc_zfree(subreq);
if (ret != EOK) {
state->dp_error = dp_error;
tevent_req_error(req, ret);
return;
}
req_input = talloc(state, struct req_input);
if (req_input == NULL) {
DEBUG(SSSDBG_OP_FAILURE, ("talloc failed.\n"));
tevent_req_error(req, ENOMEM);
return;
}
switch (state->filter_type) {
case BE_FILTER_NAME:
req_input->type = REQ_INP_NAME;
req_input->inp.name = talloc_strdup(req_input, state->filter);
if (req_input->inp.name == NULL) {
DEBUG(SSSDBG_OP_FAILURE, ("talloc_strdup failed.\n"));
tevent_req_error(req, ENOMEM);
return;
}
break;
case BE_FILTER_IDNUM:
req_input->type = REQ_INP_ID;
req_input->inp.id = strtouint32(state->filter, &endptr, 10);
if (errno || *endptr || (state->filter == endptr)) {
tevent_req_error(req, errno ? errno : EINVAL);
return;
}
break;
case BE_FILTER_SECID:
req_input->type = REQ_INP_SECID;
req_input->inp.secid = talloc_strdup(req_input, state->filter);
if (req_input->inp.secid == NULL) {
DEBUG(SSSDBG_OP_FAILURE, ("talloc_strdup failed.\n"));
tevent_req_error(req, ENOMEM);
return;
}
break;
default:
DEBUG(SSSDBG_OP_FAILURE, ("Invalid sub-domain filter type.\n"));
state->dp_error = dp_error;
tevent_req_error(req, EINVAL);
return;
}
subreq = ipa_s2n_get_acct_info_send(state,
state->ev,
state->ctx->opts,
state->domain,
sdap_id_op_handle(state->op),
state->entry_type,
req_input);
if (!subreq) {
tevent_req_error(req, ENOMEM);
return;
}
tevent_req_set_callback(subreq, ipa_get_subdom_acct_done, req);
return;
}
static void ipa_get_subdom_acct_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(subreq,
struct tevent_req);
struct ipa_get_subdom_acct *state = tevent_req_data(req,
struct ipa_get_subdom_acct);
int dp_error = DP_ERR_FATAL;
int ret;
ret = ipa_s2n_get_acct_info_recv(subreq);
talloc_zfree(subreq);
ret = sdap_id_op_done(state->op, ret, &dp_error);
if (dp_error == DP_ERR_OK && ret != EOK) {
/* retry */
subreq = sdap_id_op_connect_send(state->op, state, &ret);
if (!subreq) {
tevent_req_error(req, ret);
return;
}
tevent_req_set_callback(subreq, ipa_get_subdom_acct_connected, req);
return;
}
if (ret && ret != ENOENT) {
state->dp_error = dp_error;
tevent_req_error(req, ret);
return;
}
/* FIXME: do we need some special handling of ENOENT */
state->dp_error = DP_ERR_OK;
tevent_req_done(req);
}
int ipa_get_subdom_acct_recv(struct tevent_req *req, int *dp_error_out)
{
struct ipa_get_subdom_acct *state = tevent_req_data(req,
struct ipa_get_subdom_acct);
if (dp_error_out) {
*dp_error_out = state->dp_error;
}
TEVENT_REQ_RETURN_ON_ERROR(req);
return EOK;
}
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