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-rw-r--r--src/providers/ldap/sdap_hostid.c324
1 files changed, 324 insertions, 0 deletions
diff --git a/src/providers/ldap/sdap_hostid.c b/src/providers/ldap/sdap_hostid.c
new file mode 100644
index 0000000..ae8caad
--- /dev/null
+++ b/src/providers/ldap/sdap_hostid.c
@@ -0,0 +1,324 @@
+/*
+ Authors:
+ Jan Cholasta <jcholast@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 "util/crypto/sss_crypto.h"
+#include "db/sysdb_ssh.h"
+#include "providers/ldap/ldap_common.h"
+#include "providers/ldap/sdap_async.h"
+#include "providers/ldap/sdap_hostid.h"
+
+struct hosts_get_state {
+ struct tevent_context *ev;
+ struct sdap_id_ctx *id_ctx;
+ struct sdap_id_op *op;
+ struct sss_domain_info *domain;
+ const char *name;
+ const char *alias;
+
+ size_t count;
+ struct sysdb_attrs **hosts;
+ int dp_error;
+};
+
+static errno_t
+hosts_get_retry(struct tevent_req *req);
+static void
+hosts_get_connect_done(struct tevent_req *subreq);
+static void
+hosts_get_done(struct tevent_req *subreq);
+
+struct tevent_req *
+hosts_get_send(TALLOC_CTX *memctx,
+ struct tevent_context *ev,
+ struct sdap_id_ctx *id_ctx,
+ const char *name,
+ const char *alias)
+{
+ struct tevent_req *req;
+ struct hosts_get_state *state;
+ errno_t ret;
+
+ req = tevent_req_create(memctx, &state, struct hosts_get_state);
+ if (!req) return NULL;
+
+ state->ev = ev;
+ state->id_ctx = id_ctx;
+ state->dp_error = DP_ERR_FATAL;
+
+ state->op = sdap_id_op_create(state, id_ctx->conn->conn_cache);
+ if (!state->op) {
+ DEBUG(SSSDBG_OP_FAILURE, "sdap_id_op_create failed\n");
+ ret = ENOMEM;
+ goto fail;
+ }
+
+ state->domain = id_ctx->be->domain;
+ state->name = name;
+ state->alias = alias;
+
+ ret = hosts_get_retry(req);
+ if (ret != EOK) {
+ goto fail;
+ }
+
+ return req;
+
+fail:
+ tevent_req_error(req, ret);
+ tevent_req_post(req, ev);
+ return req;
+}
+
+static errno_t
+hosts_get_retry(struct tevent_req *req)
+{
+ struct hosts_get_state *state = tevent_req_data(req,
+ struct hosts_get_state);
+ struct tevent_req *subreq;
+ errno_t ret = EOK;
+
+ subreq = sdap_id_op_connect_send(state->op, state, &ret);
+ if (!subreq) {
+ return ret;
+ }
+
+ tevent_req_set_callback(subreq, hosts_get_connect_done, req);
+ return EOK;
+}
+
+static void
+hosts_get_connect_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct hosts_get_state *state = tevent_req_data(req,
+ struct hosts_get_state);
+ int dp_error = DP_ERR_FATAL;
+ errno_t ret;
+
+ 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 = sdap_host_info_send(state, state->ev,
+ sdap_id_op_handle(state->op),
+ state->id_ctx->opts, state->name,
+ state->id_ctx->opts->host_map,
+ state->id_ctx->opts->sdom->host_search_bases);
+ if (!subreq) {
+ tevent_req_error(req, ENOMEM);
+ return;
+ }
+ tevent_req_set_callback(subreq, hosts_get_done, req);
+}
+
+static void
+hosts_get_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct hosts_get_state *state = tevent_req_data(req,
+ struct hosts_get_state);
+ int dp_error = DP_ERR_FATAL;
+ errno_t ret;
+ struct sysdb_attrs *attrs;
+ time_t now = time(NULL);
+
+ ret = sdap_host_info_recv(subreq, state,
+ &state->count, &state->hosts);
+ talloc_zfree(subreq);
+
+ ret = sdap_id_op_done(state->op, ret, &dp_error);
+ if (dp_error == DP_ERR_OK && ret != EOK) {
+ /* retry */
+ ret = hosts_get_retry(req);
+ if (ret != EOK) {
+ goto done;
+ }
+ return;
+ }
+
+ if (ret != EOK && ret != ENOENT) {
+ goto done;
+ }
+
+ if (state->count == 0) {
+ DEBUG(SSSDBG_FUNC_DATA,
+ "No host with name [%s] found.\n", state->name);
+
+ ret = sysdb_delete_ssh_host(state->domain, state->name);
+ if (ret != EOK && ret != ENOENT) {
+ goto done;
+ }
+
+ ret = EINVAL;
+ goto done;
+ }
+
+ if (state->count > 1) {
+ DEBUG(SSSDBG_CRIT_FAILURE,
+ "Found more than one host with name [%s].\n", state->name);
+ ret = EINVAL;
+ goto done;
+ }
+
+ attrs = sysdb_new_attrs(state);
+ if (!attrs) {
+ ret = ENOMEM;
+ goto done;
+ }
+
+ /* we are interested only in the host keys */
+ ret = sysdb_attrs_copy_values(state->hosts[0], attrs, SYSDB_SSH_PUBKEY);
+ if (ret != EOK) {
+ goto done;
+ }
+
+ ret = sysdb_store_ssh_host(state->domain, state->name, state->alias,
+ state->domain->ssh_host_timeout, now, attrs);
+ if (ret != EOK) {
+ goto done;
+ }
+
+ dp_error = DP_ERR_OK;
+
+done:
+ state->dp_error = dp_error;
+ if (ret == EOK) {
+ tevent_req_done(req);
+ } else {
+ tevent_req_error(req, ret);
+ }
+}
+
+static errno_t
+hosts_get_recv(struct tevent_req *req,
+ int *dp_error_out)
+{
+ struct hosts_get_state *state = tevent_req_data(req,
+ struct hosts_get_state);
+
+ if (dp_error_out) {
+ *dp_error_out = state->dp_error;
+ }
+
+ TEVENT_REQ_RETURN_ON_ERROR(req);
+
+ return EOK;
+}
+
+struct sdap_hostid_handler_state {
+ struct dp_reply_std reply;
+};
+
+static void sdap_hostid_handler_done(struct tevent_req *subreq);
+
+struct tevent_req *
+sdap_hostid_handler_send(TALLOC_CTX *mem_ctx,
+ struct sdap_id_ctx *id_ctx,
+ struct dp_hostid_data *data,
+ struct dp_req_params *params)
+{
+ struct sdap_hostid_handler_state *state;
+ struct tevent_req *subreq;
+ struct tevent_req *req;
+ errno_t ret;
+
+ req = tevent_req_create(mem_ctx, &state, struct sdap_hostid_handler_state);
+ if (req == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, "tevent_req_create() failed\n");
+ return NULL;
+ }
+
+ subreq = hosts_get_send(state, params->ev, id_ctx,
+ data->name, data->alias);
+ if (subreq == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, "Unable to send request\n");
+ ret = ENOMEM;
+ goto immediately;
+ }
+
+ tevent_req_set_callback(subreq, sdap_hostid_handler_done, req);
+
+ return req;
+
+immediately:
+ dp_reply_std_set(&state->reply, DP_ERR_DECIDE, ret, NULL);
+
+ /* TODO For backward compatibility we always return EOK to DP now. */
+ tevent_req_done(req);
+ tevent_req_post(req, params->ev);
+
+ return req;
+}
+
+static void sdap_hostid_handler_done(struct tevent_req *subreq)
+{
+ struct sdap_hostid_handler_state *state;
+ struct tevent_req *req;
+ int dp_error;
+ errno_t ret;
+
+ req = tevent_req_callback_data(subreq, struct tevent_req);
+ state = tevent_req_data(req, struct sdap_hostid_handler_state);
+
+ ret = hosts_get_recv(subreq, &dp_error);
+ talloc_zfree(subreq);
+
+ /* TODO For backward compatibility we always return EOK to DP now. */
+ dp_reply_std_set(&state->reply, dp_error, ret, NULL);
+ tevent_req_done(req);
+}
+
+errno_t
+sdap_hostid_handler_recv(TALLOC_CTX *mem_ctx,
+ struct tevent_req *req,
+ struct dp_reply_std *data)
+{
+ struct sdap_hostid_handler_state *state = NULL;
+
+ state = tevent_req_data(req, struct sdap_hostid_handler_state);
+
+ TEVENT_REQ_RETURN_ON_ERROR(req);
+
+ *data = state->reply;
+
+ return EOK;
+}
+
+errno_t sdap_hostid_init(TALLOC_CTX *mem_ctx,
+ struct be_ctx *be_ctx,
+ struct sdap_id_ctx *id_ctx,
+ struct dp_method *dp_methods)
+{
+ (void)be_ctx;
+
+ dp_set_method(dp_methods, DPM_HOSTID_HANDLER,
+ sdap_hostid_handler_send, sdap_hostid_handler_recv, id_ctx,
+ struct sdap_id_ctx, struct dp_hostid_data, struct dp_reply_std);
+
+ return EOK;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-26 14:52:31 +0000