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/*
SSSD
Authors:
Samuel Cabrero <scabrero@suse.com>
Copyright (C) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
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/ldap/ldap_common.h"
#include "db/sysdb_iphosts.h"
#include "db/sysdb_ipnetworks.h"
static errno_t
cleanup_iphosts(struct sdap_options *opts,
struct sss_domain_info *domain)
{
TALLOC_CTX *tmp_ctx;
errno_t ret;
const char *attrs[] = { SYSDB_NAME, NULL };
time_t now = time(NULL);
char *subfilter;
char *ts_subfilter;
struct ldb_message **msgs;
size_t count;
int i;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
return ENOMEM;
}
subfilter = talloc_asprintf(tmp_ctx, "(!(%s=0))", SYSDB_CACHE_EXPIRE);
if (subfilter == NULL) {
DEBUG(SSSDBG_OP_FAILURE, "Failed to build filter\n");
ret = ENOMEM;
goto done;
}
ts_subfilter = talloc_asprintf(tmp_ctx, "(&(!(%s=0))(%s<=%"SPRItime"))",
SYSDB_CACHE_EXPIRE, SYSDB_CACHE_EXPIRE, now);
if (ts_subfilter == NULL) {
DEBUG(SSSDBG_OP_FAILURE, "Failed to build filter\n");
ret = ENOMEM;
goto done;
}
ret = sysdb_search_hosts(tmp_ctx, domain, /* subfilter, */
ts_subfilter, attrs, &count, &msgs);
if (ret == ENOENT) {
count = 0;
} else if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Failed to search ip hosts [%d]: %s\n",
ret, sss_strerror(ret));
goto done;
}
DEBUG(SSSDBG_FUNC_DATA, "Found %zu expired ip host entries!\n", count);
if (count == 0) {
ret = EOK;
goto done;
}
for (i = 0; i < count; i++) {
const char *name;
name = ldb_msg_find_attr_as_string(msgs[i], SYSDB_NAME, NULL);
if (name == NULL) {
DEBUG(SSSDBG_OP_FAILURE, "Entry %s has no Name Attribute ?!?\n",
ldb_dn_get_linearized(msgs[i]->dn));
continue;
}
DEBUG(SSSDBG_TRACE_INTERNAL, "About to delete ip host %s\n", name);
ret = sysdb_host_delete(domain, name, NULL);
if (ret != EOK) {
DEBUG(SSSDBG_OP_FAILURE, "IP host delete returned [%d]: (%s)\n",
ret, sss_strerror(ret));
continue;
}
}
done:
talloc_free(tmp_ctx);
return ret;
}
static errno_t
cleanup_ipnetworks(struct sdap_options *opts,
struct sss_domain_info *domain)
{
TALLOC_CTX *tmp_ctx;
errno_t ret;
const char *attrs[] = { SYSDB_NAME, NULL };
time_t now = time(NULL);
char *subfilter;
char *ts_subfilter;
struct ldb_message **msgs;
size_t count;
int i;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
return ENOMEM;
}
subfilter = talloc_asprintf(tmp_ctx, "(!(%s=0))", SYSDB_CACHE_EXPIRE);
if (subfilter == NULL) {
DEBUG(SSSDBG_OP_FAILURE, "Failed to build filter\n");
ret = ENOMEM;
goto done;
}
ts_subfilter = talloc_asprintf(tmp_ctx, "(&(!(%s=0))(%s<=%"SPRItime"))",
SYSDB_CACHE_EXPIRE, SYSDB_CACHE_EXPIRE, now);
if (ts_subfilter == NULL) {
DEBUG(SSSDBG_OP_FAILURE, "Failed to build filter\n");
ret = ENOMEM;
goto done;
}
ret = sysdb_search_ipnetworks(tmp_ctx, domain, /* subfilter, */
ts_subfilter, attrs, &count, &msgs);
if (ret == ENOENT) {
count = 0;
} else if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Failed to search IP networks [%d]: %s\n",
ret, sss_strerror(ret));
goto done;
}
DEBUG(SSSDBG_FUNC_DATA, "Found %zu expired IP network entries!\n", count);
if (count == 0) {
ret = EOK;
goto done;
}
for (i = 0; i < count; i++) {
const char *name;
name = ldb_msg_find_attr_as_string(msgs[i], SYSDB_NAME, NULL);
if (name == NULL) {
DEBUG(SSSDBG_OP_FAILURE, "Entry %s has no Name Attribute ?!?\n",
ldb_dn_get_linearized(msgs[i]->dn));
continue;
}
DEBUG(SSSDBG_TRACE_INTERNAL, "About to delete IP network %s\n", name);
ret = sysdb_ipnetwork_delete(domain, name, NULL);
if (ret != EOK) {
DEBUG(SSSDBG_OP_FAILURE, "IP network delete returned [%d]: (%s)\n",
ret, sss_strerror(ret));
continue;
}
}
done:
talloc_free(tmp_ctx);
return ret;
}
errno_t
ldap_resolver_cleanup(struct sdap_resolver_ctx *ctx)
{
TALLOC_CTX *tmp_ctx;
struct sdap_id_ctx *id_ctx;
struct sdap_domain *sdom;
bool in_transaction = false;
errno_t ret, tret;
tmp_ctx = talloc_new(ctx);
if (tmp_ctx == NULL) {
return ENOMEM;
}
id_ctx = ctx->id_ctx;
sdom = id_ctx->opts->sdom;
ret = sysdb_transaction_start(sdom->dom->sysdb);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Failed to start transaction\n");
goto done;
}
in_transaction = true;
ret = cleanup_iphosts(id_ctx->opts, sdom->dom);
if (ret != EOK && ret != ENOENT) {
goto done;
}
ret = cleanup_ipnetworks(id_ctx->opts, sdom->dom);
if (ret != EOK && ret != ENOENT) {
goto done;
}
ret = sysdb_transaction_commit(sdom->dom->sysdb);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Failed to commit transaction\n");
goto done;
}
in_transaction = false;
ctx->last_purge = tevent_timeval_current();
ret = EOK;
done:
if (in_transaction) {
tret = sysdb_transaction_cancel(sdom->dom->sysdb);
if (tret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Could not cancel transaction\n");
}
}
talloc_free(tmp_ctx);
return ret;
}
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