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/*
Authors:
Pavel Březina <pbrezina@redhat.com>
Copyright (C) 2015 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 "providers/ipa/ipa_common.h"
#include "providers/ldap/sdap_sudo.h"
enum sudo_schema {
SUDO_SCHEMA_IPA,
SUDO_SCHEMA_LDAP
};
static errno_t
ipa_sudo_choose_schema(struct dp_option *ipa_opts,
struct dp_option *sdap_opts,
enum sudo_schema *_schema)
{
TALLOC_CTX *tmp_ctx;
char *ipa_search_base;
char *search_base;
char *basedn;
errno_t ret;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, "talloc_new() failed\n");
return ENOMEM;
}
ret = domain_to_basedn(tmp_ctx, dp_opt_get_string(ipa_opts,
IPA_KRB5_REALM), &basedn);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Unable to obtain basedn\n");
goto done;
}
ipa_search_base = talloc_asprintf(tmp_ctx, "cn=sudo,%s", basedn);
if (ipa_search_base == NULL) {
ret = ENOMEM;
goto done;
}
search_base = dp_opt_get_string(sdap_opts, SDAP_SUDO_SEARCH_BASE);
if (search_base == NULL) {
ret = dp_opt_set_string(sdap_opts, SDAP_SUDO_SEARCH_BASE,
ipa_search_base);
if (ret != EOK) {
goto done;
}
DEBUG(SSSDBG_TRACE_FUNC, "Option %s set to %s\n",
sdap_opts[SDAP_SUDO_SEARCH_BASE].opt_name, ipa_search_base);
search_base = ipa_search_base;
}
/* Use IPA schema only if search base is cn=sudo,$dc. */
if (strcmp(ipa_search_base, search_base) == 0) {
*_schema = SUDO_SCHEMA_IPA;
} else {
*_schema = SUDO_SCHEMA_LDAP;
}
ret = EOK;
done:
talloc_free(tmp_ctx);
return ret;
}
int ipa_sudo_init(struct be_ctx *be_ctx,
struct ipa_id_ctx *id_ctx,
struct bet_ops **ops,
void **pvt_data)
{
enum sudo_schema schema;
errno_t ret;
DEBUG(SSSDBG_TRACE_INTERNAL, "Initializing IPA sudo back end\n");
ret = ipa_sudo_choose_schema(id_ctx->ipa_options->basic,
id_ctx->ipa_options->id->basic,
&schema);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Unable to choose sudo schema [%d]: %s\n",
ret, sss_strerror(ret));
return ret;
}
switch (schema) {
case SUDO_SCHEMA_IPA:
DEBUG(SSSDBG_TRACE_FUNC, "Using IPA schema for sudo\n");
break;
case SUDO_SCHEMA_LDAP:
DEBUG(SSSDBG_TRACE_FUNC, "Using LDAP schema for sudo\n");
ret = sdap_sudo_init(be_ctx, id_ctx->sdap_id_ctx, ops, pvt_data);
break;
}
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Unable to initialize sudo provider"
"[%d]: %s\n", ret, sss_strerror(ret));
return ret;
}
return EOK;
}
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