/*
delete a record
*/
static int lldb_delete(struct lldb_context *lldb_ac)
{
struct ldb_context *ldb;
struct lldb_private *lldb = lldb_ac->lldb;
struct ldb_module *module = lldb_ac->module;
struct ldb_request *req = lldb_ac->req;
char *dnstr;
int ret;
ldb = ldb_module_get_ctx(module);
ldb_request_set_state(req, LDB_ASYNC_PENDING);
dnstr = ldb_dn_alloc_linearized(lldb_ac, req->op.del.dn);
ret = ldap_delete_ext(lldb->ldap, dnstr,
NULL,
NULL,
&lldb_ac->msgid);
if (ret != LDAP_SUCCESS) {
ldb_set_errstring(ldb, ldap_err2string(ret));
}
return lldb_ldap_to_ldb(ret);
}
/*
modify a record
*/
static int lldb_modify(struct lldb_context *lldb_ac)
{
struct ldb_context *ldb;
struct lldb_private *lldb = lldb_ac->lldb;
struct ldb_module *module = lldb_ac->module;
struct ldb_request *req = lldb_ac->req;
LDAPMod **mods;
char *dn;
int ret;
ldb = ldb_module_get_ctx(module);
ldb_request_set_state(req, LDB_ASYNC_PENDING);
mods = lldb_msg_to_mods(lldb_ac, req->op.mod.message, 1);
if (mods == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
dn = ldb_dn_alloc_linearized(lldb_ac, req->op.mod.message->dn);
if (dn == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
ret = ldap_modify_ext(lldb->ldap, dn, mods,
NULL,
NULL,
&lldb_ac->msgid);
if (ret != LDAP_SUCCESS) {
ldb_set_errstring(ldb, ldap_err2string(ret));
}
return lldb_ldap_to_ldb(ret);
}
/*
rename a record
*/
static int lldb_rename(struct lldb_context *lldb_ac)
{
struct ldb_context *ldb;
struct lldb_private *lldb = lldb_ac->lldb;
struct ldb_module *module = lldb_ac->module;
struct ldb_request *req = lldb_ac->req;
const char *rdn_name;
const struct ldb_val *rdn_val;
char *old_dn;
char *newrdn;
char *parentdn;
int ret;
ldb = ldb_module_get_ctx(module);
ldb_request_set_state(req, LDB_ASYNC_PENDING);
old_dn = ldb_dn_alloc_linearized(lldb_ac, req->op.rename.olddn);
if (old_dn == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
rdn_name = ldb_dn_get_rdn_name(req->op.rename.newdn);
rdn_val = ldb_dn_get_rdn_val(req->op.rename.newdn);
if ((rdn_name != NULL) && (rdn_val != NULL)) {
newrdn = talloc_asprintf(lldb_ac, "%s=%s", rdn_name,
rdn_val->length > 0 ? ldb_dn_escape_value(lldb, *rdn_val) : "");
} else {
newrdn = talloc_strdup(lldb_ac, "");
}
if (!newrdn) {
return LDB_ERR_OPERATIONS_ERROR;
}
parentdn = ldb_dn_alloc_linearized(lldb_ac, ldb_dn_get_parent(lldb_ac, req->op.rename.newdn));
if (!parentdn) {
return LDB_ERR_OPERATIONS_ERROR;
}
ret = ldap_rename(lldb->ldap, old_dn, newrdn, parentdn,
1, NULL, NULL,
&lldb_ac->msgid);
if (ret != LDAP_SUCCESS) {
ldb_set_errstring(ldb, ldap_err2string(ret));
}
return lldb_ldap_to_ldb(ret);
}
/*
add a record to the database
*/
static int ltdb_add(struct ltdb_context *ctx)
{
struct ldb_module *module = ctx->module;
struct ldb_request *req = ctx->req;
int tret;
ldb_request_set_state(req, LDB_ASYNC_PENDING);
tret = ltdb_add_internal(module, req->op.add.message);
if (tret != LDB_SUCCESS) {
return tret;
}
return LDB_SUCCESS;
}
/*
rename a record
*/
static int ltdb_rename(struct ltdb_context *ctx)
{
struct ldb_module *module = ctx->module;
struct ldb_request *req = ctx->req;
struct ldb_message *msg;
int ret = LDB_SUCCESS;
ldb_request_set_state(req, LDB_ASYNC_PENDING);
if (ltdb_cache_load(ctx->module) != 0) {
return LDB_ERR_OPERATIONS_ERROR;
}
msg = ldb_msg_new(ctx);
if (msg == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
/* in case any attribute of the message was indexed, we need
to fetch the old record */
ret = ltdb_search_dn1(module, req->op.rename.olddn, msg);
if (ret != LDB_SUCCESS) {
/* not finding the old record is an error */
return ret;
}
/* Always delete first then add, to avoid conflicts with
* unique indexes. We rely on the transaction to make this
* atomic
*/
ret = ltdb_delete_internal(module, msg->dn);
if (ret != LDB_SUCCESS) {
return ret;
}
msg->dn = ldb_dn_copy(msg, req->op.rename.newdn);
if (msg->dn == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
/* We don't check single value as we can have more than 1 with
* deleted attributes. We could go through all elements but that's
* maybe not the most efficient way
*/
ret = ltdb_add_internal(module, msg, false);
return ret;
}
/*
delete a record from the database
*/
static int ltdb_delete(struct ltdb_context *ctx)
{
struct ldb_module *module = ctx->module;
struct ldb_request *req = ctx->req;
int ret = LDB_SUCCESS;
ldb_request_set_state(req, LDB_ASYNC_PENDING);
if (ltdb_cache_load(module) != 0) {
return LDB_ERR_OPERATIONS_ERROR;
}
ret = ltdb_delete_internal(module, req->op.del.dn);
return ret;
}
/*
rename a record
*/
static int ltdb_rename(struct ltdb_context *ctx)
{
struct ldb_module *module = ctx->module;
struct ldb_request *req = ctx->req;
struct ldb_message *msg;
int ret = LDB_SUCCESS;
ldb_request_set_state(req, LDB_ASYNC_PENDING);
if (ltdb_cache_load(ctx->module) != 0) {
return LDB_ERR_OPERATIONS_ERROR;
}
msg = talloc(ctx, struct ldb_message);
if (msg == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
/* in case any attribute of the message was indexed, we need
to fetch the old record */
ret = ltdb_search_dn1(module, req->op.rename.olddn, msg);
if (ret != LDB_SUCCESS) {
/* not finding the old record is an error */
return ret;
}
/* Always delete first then add, to avoid conflicts with
* unique indexes. We rely on the transaction to make this
* atomic
*/
ret = ltdb_delete_internal(module, msg->dn);
if (ret != LDB_SUCCESS) {
return ret;
}
msg->dn = ldb_dn_copy(msg, req->op.rename.newdn);
if (msg->dn == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
ret = ltdb_add_internal(module, msg);
return ret;
}
/*
modify a record
*/
static int ltdb_modify(struct ltdb_context *ctx)
{
struct ldb_module *module = ctx->module;
struct ldb_request *req = ctx->req;
int ret = LDB_SUCCESS;
ret = ltdb_check_special_dn(module, req->op.mod.message);
if (ret != LDB_SUCCESS) {
return ret;
}
ldb_request_set_state(req, LDB_ASYNC_PENDING);
if (ltdb_cache_load(module) != 0) {
return LDB_ERR_OPERATIONS_ERROR;
}
ret = ltdb_modify_internal(module, req->op.mod.message, req);
return ret;
}
/*
return sequenceNumber from @BASEINFO
*/
static int ltdb_sequence_number(struct ltdb_context *ctx,
struct ldb_extended **ext)
{
struct ldb_context *ldb;
struct ldb_module *module = ctx->module;
struct ldb_request *req = ctx->req;
TALLOC_CTX *tmp_ctx = NULL;
struct ldb_seqnum_request *seq;
struct ldb_seqnum_result *res;
struct ldb_message *msg = NULL;
struct ldb_dn *dn;
const char *date;
int ret = LDB_SUCCESS;
ldb = ldb_module_get_ctx(module);
seq = talloc_get_type(req->op.extended.data,
struct ldb_seqnum_request);
if (seq == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
ldb_request_set_state(req, LDB_ASYNC_PENDING);
if (ltdb_lock_read(module) != 0) {
return LDB_ERR_OPERATIONS_ERROR;
}
res = talloc_zero(req, struct ldb_seqnum_result);
if (res == NULL) {
ret = LDB_ERR_OPERATIONS_ERROR;
goto done;
}
tmp_ctx = talloc_new(req);
if (tmp_ctx == NULL) {
ret = LDB_ERR_OPERATIONS_ERROR;
goto done;
}
dn = ldb_dn_new(tmp_ctx, ldb, LTDB_BASEINFO);
if (dn == NULL) {
ret = LDB_ERR_OPERATIONS_ERROR;
goto done;
}
msg = ldb_msg_new(tmp_ctx);
if (msg == NULL) {
ret = LDB_ERR_OPERATIONS_ERROR;
goto done;
}
ret = ltdb_search_dn1(module, dn, msg);
if (ret != LDB_SUCCESS) {
goto done;
}
switch (seq->type) {
case LDB_SEQ_HIGHEST_SEQ:
res->seq_num = ldb_msg_find_attr_as_uint64(msg, LTDB_SEQUENCE_NUMBER, 0);
break;
case LDB_SEQ_NEXT:
res->seq_num = ldb_msg_find_attr_as_uint64(msg, LTDB_SEQUENCE_NUMBER, 0);
res->seq_num++;
break;
case LDB_SEQ_HIGHEST_TIMESTAMP:
date = ldb_msg_find_attr_as_string(msg, LTDB_MOD_TIMESTAMP, NULL);
if (date) {
res->seq_num = ldb_string_to_time(date);
} else {
res->seq_num = 0;
/* zero is as good as anything when we don't know */
}
break;
}
*ext = talloc_zero(req, struct ldb_extended);
if (*ext == NULL) {
ret = LDB_ERR_OPERATIONS_ERROR;
goto done;
}
(*ext)->oid = LDB_EXTENDED_SEQUENCE_NUMBER;
(*ext)->data = talloc_steal(*ext, res);
done:
talloc_free(tmp_ctx);
ltdb_unlock_read(module);
return ret;
}
/*
rename a record
*/
static int ltdb_rename(struct ltdb_context *ctx)
{
struct ldb_module *module = ctx->module;
void *data = ldb_module_get_private(module);
struct ltdb_private *ltdb = talloc_get_type(data, struct ltdb_private);
struct ldb_request *req = ctx->req;
struct ldb_message *msg;
int ret = LDB_SUCCESS;
TDB_DATA tdb_key, tdb_key_old;
ldb_request_set_state(req, LDB_ASYNC_PENDING);
if (ltdb_cache_load(ctx->module) != 0) {
return LDB_ERR_OPERATIONS_ERROR;
}
msg = ldb_msg_new(ctx);
if (msg == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
/* we need to fetch the old record to re-add under the new name */
ret = ltdb_search_dn1(module, req->op.rename.olddn, msg);
if (ret != LDB_SUCCESS) {
/* not finding the old record is an error */
return ret;
}
/* We need to, before changing the DB, check if the new DN
* exists, so we can return this error to the caller with an
* unmodified DB */
tdb_key = ltdb_key(module, req->op.rename.newdn);
if (!tdb_key.dptr) {
talloc_free(msg);
return LDB_ERR_OPERATIONS_ERROR;
}
tdb_key_old = ltdb_key(module, req->op.rename.olddn);
if (!tdb_key_old.dptr) {
talloc_free(msg);
talloc_free(tdb_key.dptr);
return LDB_ERR_OPERATIONS_ERROR;
}
/* Only declare a conflict if the new DN already exists, and it isn't a case change on the old DN */
if (tdb_key_old.dsize != tdb_key.dsize || memcmp(tdb_key.dptr, tdb_key_old.dptr, tdb_key.dsize) != 0) {
if (tdb_exists(ltdb->tdb, tdb_key)) {
talloc_free(tdb_key_old.dptr);
talloc_free(tdb_key.dptr);
ldb_asprintf_errstring(ldb_module_get_ctx(module),
"Entry %s already exists",
ldb_dn_get_linearized(msg->dn));
/* finding the new record already in the DB is an error */
talloc_free(msg);
return LDB_ERR_ENTRY_ALREADY_EXISTS;
}
}
talloc_free(tdb_key_old.dptr);
talloc_free(tdb_key.dptr);
/* Always delete first then add, to avoid conflicts with
* unique indexes. We rely on the transaction to make this
* atomic
*/
ret = ltdb_delete_internal(module, msg->dn);
if (ret != LDB_SUCCESS) {
talloc_free(msg);
return ret;
}
msg->dn = ldb_dn_copy(msg, req->op.rename.newdn);
if (msg->dn == NULL) {
talloc_free(msg);
return LDB_ERR_OPERATIONS_ERROR;
}
/* We don't check single value as we can have more than 1 with
* deleted attributes. We could go through all elements but that's
* maybe not the most efficient way
*/
ret = ltdb_add_internal(module, msg, false);
talloc_free(msg);
return ret;
}
/*
search for matching records
*/
static int lldb_search(struct lldb_context *lldb_ac)
{
struct ldb_context *ldb;
struct lldb_private *lldb = lldb_ac->lldb;
struct ldb_module *module = lldb_ac->module;
struct ldb_request *req = lldb_ac->req;
struct timeval tv;
int ldap_scope;
char *search_base;
char *expression;
int ret;
ldb = ldb_module_get_ctx(module);
if (!req->callback || !req->context) {
ldb_set_errstring(ldb, "Async interface called with NULL callback function or NULL context");
return LDB_ERR_OPERATIONS_ERROR;
}
if (req->op.search.tree == NULL) {
ldb_set_errstring(ldb, "Invalid expression parse tree");
return LDB_ERR_OPERATIONS_ERROR;
}
if (req->controls != NULL) {
ldb_debug(ldb, LDB_DEBUG_WARNING, "Controls are not yet supported by ldb_ldap backend!");
}
ldb_request_set_state(req, LDB_ASYNC_PENDING);
search_base = ldb_dn_alloc_linearized(lldb_ac, req->op.search.base);
if (req->op.search.base == NULL) {
search_base = talloc_strdup(lldb_ac, "");
}
if (search_base == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
expression = ldb_filter_from_tree(lldb_ac, req->op.search.tree);
if (expression == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
switch (req->op.search.scope) {
case LDB_SCOPE_BASE:
ldap_scope = LDAP_SCOPE_BASE;
break;
case LDB_SCOPE_ONELEVEL:
ldap_scope = LDAP_SCOPE_ONELEVEL;
break;
default:
ldap_scope = LDAP_SCOPE_SUBTREE;
break;
}
tv.tv_sec = req->timeout;
tv.tv_usec = 0;
ret = ldap_search_ext(lldb->ldap, search_base, ldap_scope,
expression,
discard_const_p(char *, req->op.search.attrs),
0,
NULL,
NULL,
&tv,
LDAP_NO_LIMIT,
&lldb_ac->msgid);
if (ret != LDAP_SUCCESS) {
ldb_set_errstring(ldb, ldap_err2string(ret));
}
return lldb_ldap_to_ldb(ret);
}