Copyright (C) Andrew Tridgell 2005
- ** NOTE! The following LGPL license applies to the ldb
- ** library. This does NOT imply that all of Samba is released
- ** under the LGPL
+ 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 library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 3 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
+ 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ 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 "includes.h"
-#include "ldb/include/ldb.h"
-#include "ldb/include/ldb_errors.h"
-#include "ldb/include/ldb_private.h"
+#include "ldb_module.h"
#include "auth/credentials/credentials.h"
struct proxy_data {
const char **newstr;
};
+struct proxy_ctx {
+ struct ldb_module *module;
+ struct ldb_request *req;
+
+#ifdef DEBUG_PROXY
+ int count;
+#endif
+};
/*
load the @PROXYINFO record
*/
static int load_proxy_info(struct ldb_module *module)
{
- struct proxy_data *proxy = talloc_get_type(module->private_data, struct proxy_data);
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ struct proxy_data *proxy = talloc_get_type(ldb_module_get_private(module), struct proxy_data);
struct ldb_dn *dn;
struct ldb_result *res = NULL;
int ret;
const char *olddn, *newdn, *url, *username, *password, *oldstr, *newstr;
struct cli_credentials *creds;
-
/* see if we have already loaded it */
if (proxy->upstream != NULL) {
- return 0;
+ return LDB_SUCCESS;
}
- dn = ldb_dn_new(proxy, module->ldb, "@PROXYINFO");
+ dn = ldb_dn_new(proxy, ldb, "@PROXYINFO");
if (dn == NULL) {
goto failed;
}
- ret = ldb_search(module->ldb, dn, LDB_SCOPE_BASE, NULL, NULL, &res);
+ ret = ldb_search(ldb, proxy, &res, dn, LDB_SCOPE_BASE, NULL, NULL);
talloc_free(dn);
if (ret != LDB_SUCCESS || res->count != 1) {
- ldb_debug(module->ldb, LDB_DEBUG_FATAL, "Can't find @PROXYINFO\n");
+ ldb_debug(ldb, LDB_DEBUG_FATAL, "Can't find @PROXYINFO\n");
goto failed;
}
newstr = ldb_msg_find_attr_as_string(res->msgs[0], "newstr", NULL);
if (url == NULL || olddn == NULL || newdn == NULL || username == NULL || password == NULL) {
- ldb_debug(module->ldb, LDB_DEBUG_FATAL, "Need url, olddn, newdn, oldstr, newstr, username and password in @PROXYINFO\n");
+ ldb_debug(ldb, LDB_DEBUG_FATAL, "Need url, olddn, newdn, oldstr, newstr, username and password in @PROXYINFO\n");
goto failed;
}
- proxy->olddn = ldb_dn_new(proxy, module->ldb, olddn);
+ proxy->olddn = ldb_dn_new(proxy, ldb, olddn);
if (proxy->olddn == NULL) {
- ldb_debug(module->ldb, LDB_DEBUG_FATAL, "Failed to explode olddn '%s'\n", olddn);
+ ldb_debug(ldb, LDB_DEBUG_FATAL, "Failed to explode olddn '%s'\n", olddn);
goto failed;
}
- proxy->newdn = ldb_dn_new(proxy, module->ldb, newdn);
+ proxy->newdn = ldb_dn_new(proxy, ldb, newdn);
if (proxy->newdn == NULL) {
- ldb_debug(module->ldb, LDB_DEBUG_FATAL, "Failed to explode newdn '%s'\n", newdn);
+ ldb_debug(ldb, LDB_DEBUG_FATAL, "Failed to explode newdn '%s'\n", newdn);
goto failed;
}
- proxy->upstream = ldb_init(proxy);
+ proxy->upstream = ldb_init(proxy, ldb_get_event_context(ldb));
if (proxy->upstream == NULL) {
- ldb_oom(module->ldb);
+ ldb_oom(ldb);
goto failed;
}
proxy->oldstr = str_list_make(proxy, oldstr, ", ");
if (proxy->oldstr == NULL) {
- ldb_oom(module->ldb);
+ ldb_oom(ldb);
goto failed;
}
proxy->newstr = str_list_make(proxy, newstr, ", ");
if (proxy->newstr == NULL) {
- ldb_oom(module->ldb);
+ ldb_oom(ldb);
goto failed;
}
/* setup credentials for connection */
creds = cli_credentials_init(proxy->upstream);
if (creds == NULL) {
- ldb_oom(module->ldb);
+ ldb_oom(ldb);
goto failed;
}
- cli_credentials_guess(creds, ldb_get_opaque(module->ldb, "loadparm"));
+ cli_credentials_guess(creds, ldb_get_opaque(ldb, "loadparm"));
cli_credentials_set_username(creds, username, CRED_SPECIFIED);
cli_credentials_set_password(creds, password, CRED_SPECIFIED);
ldb_set_opaque(proxy->upstream, "credentials", creds);
ret = ldb_connect(proxy->upstream, url, 0, NULL);
- if (ret != 0) {
- ldb_debug(module->ldb, LDB_DEBUG_FATAL, "proxy failed to connect to %s\n", url);
+ if (ret != LDB_SUCCESS) {
+ ldb_debug(ldb, LDB_DEBUG_FATAL, "proxy failed to connect to %s\n", url);
goto failed;
}
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "proxy connected to %s\n", url);
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "proxy connected to %s\n", url);
talloc_free(res);
- return 0;
+ return LDB_SUCCESS;
failed:
talloc_free(res);
talloc_free(proxy->newdn);
talloc_free(proxy->upstream);
proxy->upstream = NULL;
- return -1;
+ return ldb_operr(ldb);
}
static void proxy_convert_blob(TALLOC_CTX *mem_ctx, struct ldb_val *v,
const char *oldstr, const char *newstr)
{
- int len1, len2, len3;
+ size_t len1, len2, len3;
uint8_t *olddata = v->data;
char *p = strcasestr((char *)v->data, oldstr);
/*
convert a returned value
*/
-static void proxy_convert_value(struct ldb_module *module, struct ldb_message *msg, struct ldb_val *v)
+static void proxy_convert_value(struct proxy_data *proxy, struct ldb_message *msg, struct ldb_val *v)
{
- struct proxy_data *proxy = talloc_get_type(module->private_data, struct proxy_data);
- int i;
+ size_t i;
+
for (i=0;proxy->oldstr[i];i++) {
char *p = strcasestr((char *)v->data, proxy->oldstr[i]);
if (p == NULL) continue;
/*
convert a returned value
*/
-static struct ldb_parse_tree *proxy_convert_tree(struct ldb_module *module,
+static struct ldb_parse_tree *proxy_convert_tree(TALLOC_CTX *mem_ctx,
+ struct proxy_data *proxy,
struct ldb_parse_tree *tree)
{
- struct proxy_data *proxy = talloc_get_type(module->private_data, struct proxy_data);
- int i;
- char *expression = ldb_filter_from_tree(module, tree);
+ size_t i;
+ char *expression = ldb_filter_from_tree(mem_ctx, tree);
+
for (i=0;proxy->newstr[i];i++) {
struct ldb_val v;
char *p = strcasestr(expression, proxy->newstr[i]);
if (p == NULL) continue;
v.data = (uint8_t *)expression;
v.length = strlen(expression)+1;
- proxy_convert_blob(module, &v, proxy->newstr[i], proxy->oldstr[i]);
- return ldb_parse_tree(module, (const char *)v.data);
+ proxy_convert_blob(mem_ctx, &v, proxy->newstr[i], proxy->oldstr[i]);
+ return ldb_parse_tree(mem_ctx, (const char *)v.data);
}
return tree;
}
/*
convert a returned record
*/
-static void proxy_convert_record(struct ldb_module *module, struct ldb_message *msg)
+static void proxy_convert_record(struct ldb_context *ldb,
+ struct proxy_data *proxy,
+ struct ldb_message *msg)
{
- struct proxy_data *proxy = talloc_get_type(module->private_data, struct proxy_data);
- int attr, v;
-
+ unsigned int attr, v;
+
/* fix the message DN */
- if (ldb_dn_compare_base(module->ldb, proxy->olddn, msg->dn) == 0) {
+ if (ldb_dn_compare_base(proxy->olddn, msg->dn) == 0) {
ldb_dn_remove_base_components(msg->dn, ldb_dn_get_comp_num(proxy->olddn));
ldb_dn_add_base(msg->dn, proxy->newdn);
}
/* fix any attributes */
for (attr=0;attr<msg->num_elements;attr++) {
for (v=0;v<msg->elements[attr].num_values;v++) {
- proxy_convert_value(module, msg, &msg->elements[attr].values[v]);
+ proxy_convert_value(proxy, msg, &msg->elements[attr].values[v]);
}
}
/* fix any DN components */
for (attr=0;attr<msg->num_elements;attr++) {
for (v=0;v<msg->elements[attr].num_values;v++) {
- proxy_convert_value(module, msg, &msg->elements[attr].values[v]);
+ proxy_convert_value(proxy, msg, &msg->elements[attr].values[v]);
}
}
}
+static int proxy_search_callback(struct ldb_request *req,
+ struct ldb_reply *ares)
+{
+ struct ldb_context *ldb;
+ struct proxy_data *proxy;
+ struct proxy_ctx *ac;
+ int ret;
+
+ ac = talloc_get_type(req->context, struct proxy_ctx);
+ ldb = ldb_module_get_ctx(ac->module);
+ proxy = talloc_get_type(ldb_module_get_private(module), struct proxy_data);
+
+ if (!ares) {
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
+ }
+ if (ares->error != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, ares->controls,
+ ares->response, ares->error);
+ }
+
+ /* Only entries are interesting, and we only want the olddn */
+ switch (ares->type) {
+ case LDB_REPLY_ENTRY:
+
+#ifdef DEBUG_PROXY
+ ac->count++;
+#endif
+ proxy_convert_record(ldb, proxy, ares->message);
+ ret = ldb_module_send_entry(ac->req, ares->message, ares->controls);
+ break;
+
+ case LDB_REPLY_REFERRAL:
+
+ /* ignore remote referrals */
+ break;
+
+ case LDB_REPLY_DONE:
+
+#ifdef DEBUG_PROXY
+ printf("# record %d\n", ac->count+1);
+#endif
+
+ return ldb_module_done(ac->req, NULL, NULL, LDB_SUCCESS);
+ }
+
+ talloc_free(ares);
+ return ret;
+}
+
/* search */
static int proxy_search_bytree(struct ldb_module *module, struct ldb_request *req)
{
- struct proxy_data *proxy = talloc_get_type(module->private_data, struct proxy_data);
+ struct ldb_context *ldb;
+ struct proxy_ctx *ac;
+ struct ldb_parse_tree *newtree;
+ struct proxy_data *proxy = talloc_get_type(ldb_module_get_private(module), struct proxy_data);
struct ldb_request *newreq;
struct ldb_dn *base;
- int ret, i;
+ unsigned int i;
+ int ret;
+
+ ldb = ldb_module_get_ctx(module);
if (req->op.search.base == NULL ||
(req->op.search.base->comp_num == 1 &&
goto passthru;
}
- if (load_proxy_info(module) != 0) {
- return -1;
+ if (load_proxy_info(module) != LDB_SUCCESS) {
+ return ldb_operr(ldb);
}
/* see if the dn is within olddn */
- if (ldb_dn_compare_base(module->ldb, proxy->newdn, req->op.search.base) != 0) {
+ if (ldb_dn_compare_base(proxy->newdn, req->op.search.base) != 0) {
goto passthru;
}
- newreq = talloc(module, struct ldb_request);
- if (newreq == NULL) {
- return -1;
+ ac = talloc(req, struct proxy_ctx);
+ if (ac == NULL) {
+ return ldb_oom(ldb);
}
- newreq->op.search.tree = proxy_convert_tree(module, req->op.search.tree);
+ ac->module = module;
+ ac->req = req;
+#ifdef DEBUG_PROXY
+ ac->count = 0;
+#endif
+
+ newtree = proxy_convert_tree(ac, proxy, req->op.search.tree);
+ if (newtree == NULL) {
+ goto failed;
+ }
/* convert the basedn of this search */
- base = ldb_dn_copy(proxy, req->op.search.base);
+ base = ldb_dn_copy(ac, req->op.search.base);
if (base == NULL) {
- talloc_free(newreq);
goto failed;
}
ldb_dn_remove_base_components(base, ldb_dn_get_comp_num(proxy->newdn));
ldb_dn_add_base(base, proxy->olddn);
- ldb_debug(module->ldb, LDB_DEBUG_FATAL, "proxying: '%s' with dn '%s' \n",
- ldb_filter_from_tree(proxy, newreq->op.search.tree), ldb_dn_get_linearized(newreq->op.search.base));
+ ldb_debug(ldb, LDB_DEBUG_FATAL, "proxying: '%s' with dn '%s' \n",
+ ldb_filter_from_tree(ac, newreq->op.search.tree), ldb_dn_get_linearized(newreq->op.search.base));
for (i = 0; req->op.search.attrs && req->op.search.attrs[i]; i++) {
- ldb_debug(module->ldb, LDB_DEBUG_FATAL, "attr: '%s'\n", req->op.search.attrs[i]);
+ ldb_debug(ldb, LDB_DEBUG_FATAL, "attr: '%s'\n", req->op.search.attrs[i]);
}
- newreq->op.search.base = base;
- newreq->op.search.scope = req->op.search.scope;
- newreq->op.search.attrs = req->op.search.attrs;
- newreq->op.search.res = req->op.search.res;
- newreq->controls = req->controls;
+ ret = ldb_build_search_req_ex(&newreq, ldb, ac,
+ base, req->op.search.scope,
+ newtree, req->op.search.attrs,
+ req->controls,
+ ac, proxy_search_callback,
+ req);
+ LDB_REQ_SET_LOCATION(newreq);
+ /* FIXME: warning, need a real event system hooked up for this to work properly,
+ * for now this makes the module *not* ASYNC */
ret = ldb_request(proxy->upstream, newreq);
if (ret != LDB_SUCCESS) {
- ldb_set_errstring(module->ldb, ldb_errstring(proxy->upstream));
- talloc_free(newreq);
- return -1;
+ ldb_set_errstring(ldb, ldb_errstring(proxy->upstream));
}
-
- for (i = 0; i < newreq->op.search.res->count; i++) {
- printf("# record %d\n", i+1);
-
- proxy_convert_record(module, newreq->op.search.res->msgs[i]);
+ ret = ldb_wait(newreq->handle, LDB_WAIT_ALL);
+ if (ret != LDB_SUCCESS) {
+ ldb_set_errstring(ldb, ldb_errstring(proxy->upstream));
}
-
- talloc_free(newreq);
return ret;
failed:
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "proxy failed for %s\n",
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "proxy failed for %s\n",
ldb_dn_get_linearized(req->op.search.base));
passthru:
}
}
-const struct ldb_module_ops ldb_proxy_module_ops = {
+static const struct ldb_module_ops ldb_proxy_module_ops = {
.name = "proxy",
.request = proxy_request
};
+
+int ldb_proxy_module_init(const char *version)
+{
+ LDB_MODULE_CHECK_VERSION(version);
+ return ldb_register_module(&ldb_proxy_module_ops);
+}
git.samba.org / mdw / samba.git / blobdiff