ipa_id.c revision df0596ec12bc5091608371e2977f3111241e8caf
/*
SSSD
IPA Identity Backend Module
Authors:
Jan Zeleny <jzeleny@redhat.com>
Copyright (C) 2011 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 "db/sysdb.h"
#include "providers/ldap/ldap_common.h"
#include "providers/ldap/sdap_async.h"
#include "providers/ipa/ipa_id.h"
static const char *ipa_account_info_error_text(int ret, int *dp_error,
const char *default_text)
{
switch (*dp_error) {
case DP_ERR_OK:
if (ret == EOK) {
return NULL;
}
DEBUG(SSSDBG_CRIT_FAILURE,
("Bug: dp_error is OK on failed request\n"));
*dp_error = DP_ERR_FATAL;
break;
case DP_ERR_OFFLINE:
return "Offline";
case DP_ERR_FATAL:
if (ret == ENOMEM) {
return "Out of memory";
}
break;
default:
break;
}
return default_text;
}
static struct tevent_req *ipa_id_get_netgroup_send(TALLOC_CTX *memctx,
struct tevent_context *ev,
struct ipa_id_ctx *ipa_ctx,
const char *name);
static int ipa_id_get_netgroup_recv(struct tevent_req *req, int *dp_error);
static void ipa_account_info_done(struct tevent_req *req);
void ipa_account_info_handler(struct be_req *breq)
{
struct ipa_id_ctx *ipa_ctx;
struct sdap_id_ctx *ctx;
struct be_acct_req *ar;
struct tevent_req *req = NULL;
ipa_ctx = talloc_get_type(breq->be_ctx->bet_info[BET_ID].pvt_bet_data, struct ipa_id_ctx);
ctx = ipa_ctx->sdap_id_ctx;
if (be_is_offline(ctx->be)) {
return sdap_handler_done(breq, DP_ERR_OFFLINE, EAGAIN, "Offline");
}
ar = talloc_get_type(breq->req_data, struct be_acct_req);
if (strcasecmp(ar->domain, breq->be_ctx->domain->name) != 0) {
/* if domain names do not match, this is a subdomain case */
req = ipa_get_subdom_acct_send(breq, breq->be_ctx->ev, ctx, ar);
} else if ((ar->entry_type & BE_REQ_TYPE_MASK) == BE_REQ_NETGROUP) {
/* netgroups are handled by a separate request function */
if (ar->filter_type != BE_FILTER_NAME) {
return sdap_handler_done(breq, DP_ERR_FATAL,
EINVAL, "Invalid filter type");
}
req = ipa_id_get_netgroup_send(breq, breq->be_ctx->ev,
ipa_ctx, ar->filter_value);
} else {
/* any account request is handled by sdap,
* any invalid request is caught there. */
return sdap_handle_account_info(breq, ctx);
}
if (!req) {
return sdap_handler_done(breq, DP_ERR_FATAL,
ENOMEM, "Out of memory");
}
tevent_req_set_callback(req, ipa_account_info_done, breq);
}
static void ipa_account_info_done(struct tevent_req *req)
{
struct be_req *breq = tevent_req_callback_data(req, struct be_req);
struct be_acct_req *ar = talloc_get_type(breq->req_data,
struct be_acct_req);
const char *error_text;
int ret, dp_error;
if ((ar->entry_type & BE_REQ_TYPE_MASK) == BE_REQ_NETGROUP) {
ret = ipa_id_get_netgroup_recv(req, &dp_error);
} else {
ret = ipa_get_subdom_acct_recv(req, &dp_error);
}
talloc_zfree(req);
error_text = ipa_account_info_error_text(ret, &dp_error,
"Account info lookup failed");
sdap_handler_done(breq, dp_error, ret, error_text);
}
/* Request for netgroups
* - first start here and then go to ipa_netgroups.c
*/
struct ipa_id_get_netgroup_state {
struct tevent_context *ev;
struct ipa_id_ctx *ctx;
struct sdap_id_op *op;
struct sysdb_ctx *sysdb;
struct sss_domain_info *domain;
const char *name;
int timeout;
char *filter;
const char **attrs;
size_t count;
struct sysdb_attrs **netgroups;
int dp_error;
};
static void ipa_id_get_netgroup_connected(struct tevent_req *subreq);
static void ipa_id_get_netgroup_done(struct tevent_req *subreq);
static struct tevent_req *ipa_id_get_netgroup_send(TALLOC_CTX *memctx,
struct tevent_context *ev,
struct ipa_id_ctx *ipa_ctx,
const char *name)
{
struct tevent_req *req;
struct ipa_id_get_netgroup_state *state;
struct tevent_req *subreq;
struct sdap_id_ctx *ctx;
char *clean_name;
int ret;
ctx = ipa_ctx->sdap_id_ctx;
req = tevent_req_create(memctx, &state, struct ipa_id_get_netgroup_state);
if (!req) return NULL;
state->ev = ev;
state->ctx = ipa_ctx;
state->dp_error = DP_ERR_FATAL;
state->op = sdap_id_op_create(state, ctx->conn_cache);
if (!state->op) {
DEBUG(2, ("sdap_id_op_create failed\n"));
ret = ENOMEM;
goto fail;
}
state->sysdb = ctx->be->domain->sysdb;
state->domain = ctx->be->domain;
state->name = name;
state->timeout = dp_opt_get_int(ctx->opts->basic, SDAP_SEARCH_TIMEOUT);
ret = sss_filter_sanitize(state, name, &clean_name);
if (ret != EOK) {
goto fail;
}
state->filter = talloc_asprintf(state, "(&(%s=%s)(objectclass=%s))",
ctx->opts->netgroup_map[IPA_AT_NETGROUP_NAME].name,
clean_name,
ctx->opts->netgroup_map[IPA_OC_NETGROUP].name);
if (!state->filter) {
DEBUG(2, ("Failed to build filter\n"));
ret = ENOMEM;
goto fail;
}
talloc_zfree(clean_name);
ret = build_attrs_from_map(state, ctx->opts->netgroup_map,
IPA_OPTS_NETGROUP, NULL,
&state->attrs, NULL);
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_id_get_netgroup_connected, req);
return req;
fail:
tevent_req_error(req, ret);
tevent_req_post(req, ev);
return req;
}
static void ipa_id_get_netgroup_connected(struct tevent_req *subreq)
{
struct tevent_req *req =
tevent_req_callback_data(subreq, struct tevent_req);
struct ipa_id_get_netgroup_state *state =
tevent_req_data(req, struct ipa_id_get_netgroup_state);
int dp_error = DP_ERR_FATAL;
int ret;
struct sdap_id_ctx *sdap_ctx = state->ctx->sdap_id_ctx;
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;
}
subreq = ipa_get_netgroups_send(state, state->ev, state->sysdb,
state->domain, sdap_ctx->opts,
state->ctx->ipa_options,
sdap_id_op_handle(state->op),
state->attrs, state->filter,
state->timeout);
if (!subreq) {
tevent_req_error(req, ENOMEM);
return;
}
tevent_req_set_callback(subreq, ipa_id_get_netgroup_done, req);
return;
}
static void ipa_id_get_netgroup_done(struct tevent_req *subreq)
{
struct tevent_req *req =
tevent_req_callback_data(subreq, struct tevent_req);
struct ipa_id_get_netgroup_state *state =
tevent_req_data(req, struct ipa_id_get_netgroup_state);
int dp_error = DP_ERR_FATAL;
int ret;
ret = ipa_get_netgroups_recv(subreq, state,
&state->count, &state->netgroups);
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_id_get_netgroup_connected, req);
return;
}
if (ret && ret != ENOENT) {
state->dp_error = dp_error;
tevent_req_error(req, ret);
return;
}
if (ret == EOK && state->count > 1) {
DEBUG(1, ("Found more than one netgroup with the name [%s].\n",
state->name));
tevent_req_error(req, EINVAL);
return;
}
if (ret == ENOENT) {
ret = sysdb_delete_netgroup(state->sysdb, state->domain, state->name);
if (ret != EOK && ret != ENOENT) {
tevent_req_error(req, ret);
return;
}
}
state->dp_error = DP_ERR_OK;
tevent_req_done(req);
return;
}
static int ipa_id_get_netgroup_recv(struct tevent_req *req, int *dp_error)
{
struct ipa_id_get_netgroup_state *state =
tevent_req_data(req, struct ipa_id_get_netgroup_state);
if (dp_error) {
*dp_error = state->dp_error;
}
TEVENT_REQ_RETURN_ON_ERROR(req);
return EOK;
}
void ipa_check_online(struct be_req *be_req)
{
struct ipa_id_ctx *ipa_ctx;
ipa_ctx = talloc_get_type(be_req->be_ctx->bet_info[BET_ID].pvt_bet_data,
struct ipa_id_ctx);
return sdap_do_online_check(be_req, ipa_ctx->sdap_id_ctx);
}