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r13818: Make ldb_tdb 'fake' async.

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Simo.
This commit is contained in:
Simo Sorce 2006-03-03 17:44:03 +00:00 committed by Gerald (Jerry) Carter
parent f1471c6c6c
commit 0db616ef59
7 changed files with 642 additions and 209 deletions
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25
source/lib/ldb/ldb_ildap/ldb_ildap.c
View File

@ -539,7 +539,10 @@ static int ildb_search_bytree(struct ldb_module *module, const struct ldb_dn *ba
if (ret != LDB_SUCCESS)
return ret;
return ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
/*
@ -608,7 +611,10 @@ static int ildb_add(struct ldb_module *module, const struct ldb_message *msg)
if (ret != LDB_SUCCESS)
return ret;
return ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
/*
@ -677,7 +683,10 @@ static int ildb_modify(struct ldb_module *module, const struct ldb_message *msg)
if (ret != LDB_SUCCESS)
return ret;
return ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
/*
@ -727,7 +736,10 @@ static int ildb_delete(struct ldb_module *module, const struct ldb_dn *dn)
if (ret != LDB_SUCCESS)
return ret;
return ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
/*
@ -796,7 +808,10 @@ static int ildb_rename(struct ldb_module *module, const struct ldb_dn *olddn, co
if (ret != LDB_SUCCESS)
return ret;
return ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
static int ildb_start_trans(struct ldb_module *module)

27
source/lib/ldb/ldb_ldap/ldb_ldap.c
View File

@ -52,7 +52,7 @@ struct lldb_private {
struct lldb_async_context {
struct ldb_module *module;
int msgid;
uint32_t timeout;
int timeout;
void *context;
int (*callback)(struct ldb_context *, void *, struct ldb_async_result *);
};
@ -398,7 +398,10 @@ static int lldb_search_bytree(struct ldb_module *module, const struct ldb_dn *ba
if (ret != LDB_SUCCESS)
return ret;
return ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
/*
@ -469,7 +472,10 @@ static int lldb_add(struct ldb_module *module, const struct ldb_message *msg)
if (ret != LDB_SUCCESS)
return ret;
return ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
@ -541,7 +547,10 @@ static int lldb_modify(struct ldb_module *module, const struct ldb_message *msg)
if (ret != LDB_SUCCESS)
return ret;
return ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
/*
@ -601,7 +610,10 @@ static int lldb_delete(struct ldb_module *module, const struct ldb_dn *dn)
if (ret != LDB_SUCCESS)
return ret;
return ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
/*
@ -681,7 +693,10 @@ static int lldb_rename(struct ldb_module *module, const struct ldb_dn *olddn, co
if (ret != LDB_SUCCESS)
return ret;
return ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
static int lldb_parse_result(struct ldb_async_handle *handle, LDAPMessage *result)

106
source/lib/ldb/ldb_tdb/ldb_index.c
View File

@ -625,52 +625,75 @@ static int ltdb_index_dn(struct ldb_module *module,
filter a candidate dn_list from an indexed search into a set of results
extracting just the given attributes
*/
static int ldb_index_filter(struct ldb_module *module, struct ldb_parse_tree *tree,
const struct ldb_dn *base,
enum ldb_scope scope,
const struct dn_list *dn_list,
const char * const attrs[], struct ldb_result *res)
static int ltdb_index_filter(const struct dn_list *dn_list,
struct ldb_async_handle *handle)
{
struct ltdb_async_context *ac = talloc_get_type(handle->private_data, struct ltdb_async_context);
struct ldb_async_result *ares = NULL;
unsigned int i;
for (i = 0; i < dn_list->count; i++) {
struct ldb_message *msg;
struct ldb_dn *dn;
int ret;
msg = talloc(module, struct ldb_message);
if (msg == NULL) {
return LDB_ERR_OTHER;
ares = talloc_zero(ac, struct ldb_async_result);
if (!ares) {
handle->status = LDB_ERR_OPERATIONS_ERROR;
handle->state = LDB_ASYNC_DONE;
return LDB_ERR_OPERATIONS_ERROR;
}
dn = ldb_dn_explode(msg, dn_list->dn[i]);
ares->message = ldb_msg_new(ares);
if (!ares->message) {
handle->status = LDB_ERR_OPERATIONS_ERROR;
handle->state = LDB_ASYNC_DONE;
talloc_free(ares);
return LDB_ERR_OPERATIONS_ERROR;
}
dn = ldb_dn_explode(ares->message, dn_list->dn[i]);
if (dn == NULL) {
talloc_free(msg);
return LDB_ERR_OTHER;
talloc_free(ares);
return LDB_ERR_OPERATIONS_ERROR;
}
ret = ltdb_search_dn1(module, dn, msg);
ret = ltdb_search_dn1(ac->module, dn, ares->message);
talloc_free(dn);
if (ret == 0) {
/* the record has disappeared? yes, this can happen */
talloc_free(msg);
talloc_free(ares);
continue;
}
if (ret == -1) {
/* an internal error */
talloc_free(msg);
return LDB_ERR_OTHER;
talloc_free(ares);
return LDB_ERR_OPERATIONS_ERROR;
}
ret = 0;
if (ldb_match_msg(module->ldb, msg, tree, base, scope) == 1) {
ret = ltdb_add_attr_results(module, res, msg,
attrs, &(res->count), &(res->msgs));
if (!ldb_match_msg(ac->module->ldb, ares->message, ac->tree, ac->base, ac->scope)) {
talloc_free(ares);
continue;
}
talloc_free(msg);
if (ret != 0) {
return LDB_ERR_OTHER;
/* filter the attributes that the user wants */
ret = ltdb_filter_attrs(ares->message, ac->attrs);
if (ret == -1) {
handle->status = LDB_ERR_OPERATIONS_ERROR;
handle->state = LDB_ASYNC_DONE;
talloc_free(ares);
return LDB_ERR_OPERATIONS_ERROR;
}
ares->type = LDB_REPLY_ENTRY;
handle->state = LDB_ASYNC_PENDING;
handle->status = ac->callback(ac->module->ldb, ac->context, ares);
if (handle->status != LDB_SUCCESS) {
handle->state = LDB_ASYNC_DONE;
return handle->status;
}
}
@ -682,59 +705,48 @@ static int ldb_index_filter(struct ldb_module *module, struct ldb_parse_tree *tr
returns -1 if an indexed search is not possible, in which
case the caller should call ltdb_search_full()
*/
int ltdb_search_indexed(struct ldb_module *module,
const struct ldb_dn *base,
enum ldb_scope scope,
struct ldb_parse_tree *tree,
const char * const attrs[], struct ldb_result **res)
int ltdb_search_indexed(struct ldb_async_handle *handle)
{
struct ltdb_private *ltdb = module->private_data;
struct ltdb_async_context *ac = talloc_get_type(handle->private_data, struct ltdb_async_context);
struct ltdb_private *ltdb = talloc_get_type(ac->module->private_data, struct ltdb_private);
struct dn_list *dn_list;
int ret;
if (ltdb->cache->indexlist->num_elements == 0 &&
scope != LDB_SCOPE_BASE) {
ac->scope != LDB_SCOPE_BASE) {
/* no index list? must do full search */
return -1;
}
dn_list = talloc(module, struct dn_list);
dn_list = talloc(handle, struct dn_list);
if (dn_list == NULL) {
return -1;
}
*res = talloc(module, struct ldb_result);
if (*res == NULL) {
return LDB_ERR_OTHER;
}
(*res)->count = 0;
(*res)->msgs = NULL;
(*res)->refs = NULL;
(*res)->controls = NULL;
if (scope == LDB_SCOPE_BASE) {
if (ac->scope == LDB_SCOPE_BASE) {
/* with BASE searches only one DN can match */
dn_list->dn = talloc_array(dn_list, char *, 1);
if (dn_list->dn == NULL) {
ldb_oom(module->ldb);
ldb_oom(ac->module->ldb);
return -1;
}
dn_list->dn[0] = ldb_dn_linearize(dn_list, base);
dn_list->dn[0] = ldb_dn_linearize(dn_list, ac->base);
if (dn_list->dn[0] == NULL) {
ldb_oom(module->ldb);
ldb_oom(ac->module->ldb);
return -1;
}
dn_list->count = 1;
ret = 1;
} else {
ret = ltdb_index_dn(module, tree, ltdb->cache->indexlist, dn_list);
ret = ltdb_index_dn(ac->module, ac->tree, ltdb->cache->indexlist, dn_list);
}
if (ret == 1) {
/* we've got a candidate list - now filter by the full tree
and extract the needed attributes */
ret = ldb_index_filter(module, tree, base, scope, dn_list,
attrs, *res);
ret = ltdb_index_filter(dn_list, handle);
handle->status = ret;
handle->state = LDB_ASYNC_DONE;
}
talloc_free(dn_list);

15
source/lib/ldb/ldb_tdb/ldb_pack.c
View File

@ -240,7 +240,11 @@ int ltdb_unpack_data(struct ldb_module *module,
goto failed;
}
message->elements[i].flags = 0;
message->elements[i].name = (char *)p;
message->elements[i].name = talloc_strndup(message->elements, (char *)p, len);
if (message->elements[i].name == NULL) {
errno = ENOMEM;
goto failed;
}
remaining -= len + 1;
p += len + 1;
message->elements[i].num_values = pull_uint32(p, 0);
@ -264,7 +268,14 @@ int ltdb_unpack_data(struct ldb_module *module,
}
message->elements[i].values[j].length = len;
message->elements[i].values[j].data = p+4;
message->elements[i].values[j].data = talloc_size(message->elements[i].values, len+1);
if (message->elements[i].values[j].data == NULL) {
errno = ENOMEM;
goto failed;
}
memcpy(message->elements[i].values[j].data, p+4, len);
message->elements[i].values[j].data[len] = 0;
remaining -= len+4+1;
p += len+4+1;
}

323
source/lib/ldb/ldb_tdb/ldb_search.c
View File

@ -213,7 +213,7 @@ int ltdb_search_dn1(struct ldb_module *module, const struct ldb_dn *dn, struct l
{
struct ltdb_private *ltdb = module->private_data;
int ret;
TDB_DATA tdb_key, tdb_data, tdb_data2;
TDB_DATA tdb_key, tdb_data;
memset(msg, 0, sizeof(*msg));
@ -229,27 +229,19 @@ int ltdb_search_dn1(struct ldb_module *module, const struct ldb_dn *dn, struct l
return 0;
}
tdb_data2.dptr = talloc_memdup(msg, tdb_data.dptr, tdb_data.dsize);
free(tdb_data.dptr);
if (!tdb_data2.dptr) {
return -1;
}
tdb_data2.dsize = tdb_data.dsize;
msg->num_elements = 0;
msg->elements = NULL;
ret = ltdb_unpack_data(module, &tdb_data2, msg);
ret = ltdb_unpack_data(module, &tdb_data, msg);
free(tdb_data.dptr);
if (ret == -1) {
talloc_free(tdb_data2.dptr);
return -1;
}
if (!msg->dn) {
msg->dn = ldb_dn_copy(tdb_data2.dptr, dn);
msg->dn = ldb_dn_copy(msg, dn);
}
if (!msg->dn) {
talloc_free(tdb_data2.dptr);
return -1;
}
@ -328,28 +320,67 @@ int ltdb_add_attr_results(struct ldb_module *module,
}
/*
internal search state during a full db search
*/
struct ltdb_search_info {
struct ldb_module *module;
struct ldb_parse_tree *tree;
const struct ldb_dn *base;
enum ldb_scope scope;
const char * const *attrs;
struct ldb_message **msgs;
unsigned int failures;
unsigned int count;
};
/*
filter the specified list of attributes from a message
removing not requested attrs.
*/
int ltdb_filter_attrs(struct ldb_message *msg, const char * const *attrs)
{
int i, keep_all = 0;
if (attrs) {
/* check for special attrs */
for (i = 0; attrs[i]; i++) {
if (strcmp(attrs[i], "*") == 0) {
keep_all = 1;
break;
}
if (ldb_attr_cmp(attrs[i], "distinguishedName") == 0) {
if (msg_add_distinguished_name(msg) != 0) {
return -1;
}
}
}
} else {
keep_all = 1;
}
if (keep_all) {
if (msg_add_distinguished_name(msg) != 0) {
return -1;
}
return 0;
}
for (i = 0; i < msg->num_elements; i++) {
int j, found;
for (j = 0, found = 0; attrs[j]; j++) {
if (ldb_attr_cmp(msg->elements[i].name, attrs[j]) == 0) {
found = 1;
break;
}
}
if (!found) {
ldb_msg_remove_attr(msg, msg->elements[i].name);
i--;
}
}
return 0;
}
/*
search function for a non-indexed search
*/
static int search_func(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data, void *state)
{
struct ltdb_search_info *sinfo = state;
struct ldb_message *msg;
struct ldb_async_handle *handle = talloc_get_type(state, struct ldb_async_handle);
struct ltdb_async_context *ac = talloc_get_type(handle->private_data, struct ltdb_async_context);
struct ldb_async_result *ares = NULL;
int ret;
if (key.dsize < 4 ||
@ -357,43 +388,65 @@ static int search_func(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data, voi
return 0;
}
msg = talloc(sinfo, struct ldb_message);
if (msg == NULL) {
ares = talloc_zero(ac, struct ldb_async_result);
if (!ares) {
handle->status = LDB_ERR_OPERATIONS_ERROR;
handle->state = LDB_ASYNC_DONE;
return -1;
}
ares->message = ldb_msg_new(ares);
if (!ares->message) {
handle->status = LDB_ERR_OPERATIONS_ERROR;
handle->state = LDB_ASYNC_DONE;
talloc_free(ares);
return -1;
}
/* unpack the record */
ret = ltdb_unpack_data(sinfo->module, &data, msg);
ret = ltdb_unpack_data(ac->module, &data, ares->message);
if (ret == -1) {
sinfo->failures++;
talloc_free(msg);
return 0;
talloc_free(ares);
return -1;
}
if (!msg->dn) {
msg->dn = ldb_dn_explode(msg, (char *)key.dptr + 3);
if (msg->dn == NULL) {
talloc_free(msg);
if (!ares->message->dn) {
ares->message->dn = ldb_dn_explode(ares->message, (char *)key.dptr + 3);
if (ares->message->dn == NULL) {
handle->status = LDB_ERR_OPERATIONS_ERROR;
handle->state = LDB_ASYNC_DONE;
talloc_free(ares);
return -1;
}
}
/* see if it matches the given expression */
if (!ldb_match_msg(sinfo->module->ldb, msg, sinfo->tree,
sinfo->base, sinfo->scope)) {
talloc_free(msg);
if (!ldb_match_msg(ac->module->ldb, ares->message, ac->tree,
ac->base, ac->scope)) {
talloc_free(ares);
return 0;
}
ret = ltdb_add_attr_results(sinfo->module, sinfo, msg, sinfo->attrs, &sinfo->count, &sinfo->msgs);
/* filter the attributes that the user wants */
ret = ltdb_filter_attrs(ares->message, ac->attrs);
if (ret == -1) {
sinfo->failures++;
handle->status = LDB_ERR_OPERATIONS_ERROR;
handle->state = LDB_ASYNC_DONE;
talloc_free(ares);
return -1;
}
talloc_free(msg);
ares->type = LDB_REPLY_ENTRY;
handle->state = LDB_ASYNC_PENDING;
handle->status = ac->callback(ac->module->ldb, ac->context, ares);
return ret;
if (handle->status != LDB_SUCCESS) {
/* don't try to free ares here, the callback is in charge of that */
return -1;
}
return 0;
}
@ -401,56 +454,127 @@ static int search_func(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data, voi
search the database with a LDAP-like expression.
this is the "full search" non-indexed variant
*/
static int ltdb_search_full(struct ldb_module *module,
const struct ldb_dn *base,
enum ldb_scope scope,
struct ldb_parse_tree *tree,
const char * const attrs[], struct ldb_result **res)
static int ltdb_search_full(struct ldb_async_handle *handle)
{
struct ltdb_private *ltdb = module->private_data;
struct ldb_result *result;
struct ltdb_async_context *ac = talloc_get_type(handle->private_data, struct ltdb_async_context);
struct ltdb_private *ltdb = talloc_get_type(ac->module->private_data, struct ltdb_private);
int ret;
struct ltdb_search_info *sinfo;
result = talloc(ltdb, struct ldb_result);
if (result == NULL) {
return LDB_ERR_OTHER;
}
ret = tdb_traverse_read(ltdb->tdb, search_func, handle);
sinfo = talloc(ltdb, struct ltdb_search_info);
if (sinfo == NULL) {
talloc_free(result);
return LDB_ERR_OTHER;
}
sinfo->tree = tree;
sinfo->module = module;
sinfo->scope = scope;
sinfo->base = base;
sinfo->attrs = attrs;
sinfo->msgs = NULL;
sinfo->count = 0;
sinfo->failures = 0;
ret = tdb_traverse_read(ltdb->tdb, search_func, sinfo);
handle->state = LDB_ASYNC_DONE;
if (ret == -1) {
talloc_free(result);
talloc_free(sinfo);
return -1;
handle->status = LDB_ERR_OPERATIONS_ERROR;
return handle->status;
}
result->controls = NULL;
result->refs = NULL;
result->msgs = talloc_steal(result, sinfo->msgs);
result->count = sinfo->count;
*res = result;
talloc_free(sinfo);
return LDB_SUCCESS;
handle->status = LDB_SUCCESS;
return handle->status;
}
static int ltdb_search_sync_callback(struct ldb_context *ldb, void *context, struct ldb_async_result *ares)
{
struct ldb_result *res;
if (!context) {
ldb_set_errstring(ldb, talloc_strdup(ldb, "NULL Context in callback"));
goto error;
}
res = *((struct ldb_result **)context);
if (!res || !ares) {
goto error;
}
if (ares->type == LDB_REPLY_ENTRY) {
res->msgs = talloc_realloc(res, res->msgs, struct ldb_message *, res->count + 2);
if (! res->msgs) {
goto error;
}
res->msgs[res->count + 1] = NULL;
res->msgs[res->count] = talloc_steal(res->msgs, ares->message);
if (! res->msgs[res->count]) {
goto error;
}
res->count++;
} else {
ldb_debug(ldb, LDB_DEBUG_ERROR, "unrecognized async reply in ltdb_search_sync_callback!\n");
goto error;
}
talloc_free(ares);
return LDB_SUCCESS;
error:
if (ares) talloc_free(ares);
if (res) talloc_free(res);
if (context) *((struct ldb_result **)context) = NULL;
return LDB_ERR_OPERATIONS_ERROR;
}
int ltdb_search_async(struct ldb_module *module, const struct ldb_dn *base,
enum ldb_scope scope, struct ldb_parse_tree *tree,
const char * const *attrs,
void *context,
int (*callback)(struct ldb_context *, void *, struct ldb_async_result *),
int timeout,
struct ldb_async_handle **handle)
{
struct ltdb_private *ltdb = talloc_get_type(module->private_data, struct ltdb_private);
struct ltdb_async_context *ltdb_ac;
int ret;
if ((base == NULL || base->comp_num == 0) &&
(scope == LDB_SCOPE_BASE || scope == LDB_SCOPE_ONELEVEL))
return LDB_ERR_OPERATIONS_ERROR;
if (ltdb_lock_read(module) != 0) {
return LDB_ERR_OPERATIONS_ERROR;
}
if (ltdb_cache_load(module) != 0) {
ltdb_unlock_read(module);
return LDB_ERR_OPERATIONS_ERROR;
}
if (tree == NULL) {
ltdb_unlock_read(module);
return LDB_ERR_OPERATIONS_ERROR;
}
*handle = init_ltdb_handle(ltdb, module, context, callback, timeout);
if (*handle == NULL) {
talloc_free(*handle);
ltdb_unlock_read(module);
return LDB_ERR_OPERATIONS_ERROR;
}
ltdb_ac = talloc_get_type((*handle)->private_data, struct ltdb_async_context);
ltdb_ac->tree = tree;
ltdb_ac->scope = scope;
ltdb_ac->base = base;
ltdb_ac->attrs = attrs;
ret = ltdb_search_indexed(*handle);
if (ret == -1) {
ret = ltdb_search_full(*handle);
}
if (ret != LDB_SUCCESS) {
ldb_set_errstring(module->ldb, talloc_strdup(module->ldb, "Indexed and full searches both failed!\n"));
talloc_free(*handle);
*handle = NULL;
}
ltdb_unlock_read(module);
return ret;
}
/*
search the database with a LDAP-like expression.
@ -460,33 +584,24 @@ int ltdb_search_bytree(struct ldb_module *module, const struct ldb_dn *base,
enum ldb_scope scope, struct ldb_parse_tree *tree,
const char * const attrs[], struct ldb_result **res)
{
struct ldb_async_handle *handle;
int ret;
if ((base == NULL || base->comp_num == 0) &&
(scope == LDB_SCOPE_BASE || scope == LDB_SCOPE_ONELEVEL)) return -1;
if (ltdb_lock_read(module) != 0) {
return -1;
*res = talloc_zero(module, struct ldb_result);
if (! *res) {
return LDB_ERR_OPERATIONS_ERROR;
}
if (ltdb_cache_load(module) != 0) {
ltdb_unlock_read(module);
return -1;
}
ret = ltdb_search_async(module, base, scope, tree, attrs,
res, &ltdb_search_sync_callback,
0, &handle);
if (tree == NULL) {
return -1;
}
if (ret != LDB_SUCCESS)
return ret;
*res = NULL;
ret = ltdb_search_indexed(module, base, scope, tree, attrs, res);
if (ret == -1) {
ret = ltdb_search_full(module, base, scope, tree, attrs, res);
}
ltdb_unlock_read(module);
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}

314
source/lib/ldb/ldb_tdb/ldb_tdb.c
View File

@ -3,6 +3,7 @@
Copyright (C) Andrew Tridgell 2004
Copyright (C) Stefan Metzmacher 2004
Copyright (C) Simo Sorce 2006
** NOTE! The following LGPL license applies to the ldb
@ -25,7 +26,7 @@
*/
/*
* Name: ldb
* Name: ldb_tdb
*
* Component: ldb tdb backend
*
@ -33,6 +34,12 @@
*
* Author: Andrew Tridgell
* Author: Stefan Metzmacher
*
* Modifications:
*
* - description: make the module use asyncronous calls
* date: Feb 2006
* Author: Simo Sorce
*/
#include "includes.h"
@ -71,6 +78,37 @@ static int ltdb_err_map(enum TDB_ERROR tdb_code)
}
struct ldb_async_handle *init_ltdb_handle(struct ltdb_private *ltdb, struct ldb_module *module,
void *context,
int (*callback)(struct ldb_context *, void *, struct ldb_async_result *),
int timeout)
{
struct ltdb_async_context *ac;
struct ldb_async_handle *h;
h = talloc_zero(ltdb, struct ldb_async_handle);
if (h == NULL) {
ldb_set_errstring(module->ldb, talloc_asprintf(module, "Out of Memory"));
return NULL;
}
ac = talloc_zero(h, struct ltdb_async_context);
if (ac == NULL) {
ldb_set_errstring(module->ldb, talloc_asprintf(module, "Out of Memory"));
talloc_free(h);
return NULL;
}
h->private_data = (void *)ac;
ac->module = module;
ac->context = context;
ac->callback = callback;
ac->timeout = timeout;
return h;
}
/*
form a TDB_DATA for a record key
caller frees
@ -218,28 +256,65 @@ done:
/*
add a record to the database
*/
static int ltdb_add(struct ldb_module *module, const struct ldb_message *msg)
static int ltdb_add_async(struct ldb_module *module, const struct ldb_message *msg,
void *context,
int (*callback)(struct ldb_context *, void *, struct ldb_async_result *),
int timeout,
struct ldb_async_handle **handle)
{
int ret;
struct ltdb_private *ltdb = talloc_get_type(module->private_data, struct ltdb_private);
struct ltdb_async_context *ltdb_ac;
int ret = LDB_ERR_OPERATIONS_ERROR;
*handle = init_ltdb_handle(ltdb, module, context, callback, timeout);
if (*handle == NULL) {
return ret;
}
ltdb_ac = talloc_get_type((*handle)->private_data, struct ltdb_async_context);
(*handle)->state = LDB_ASYNC_DONE;
(*handle)->status = LDB_SUCCESS;
ret = ltdb_check_special_dn(module, msg);
if (ret != LDB_SUCCESS) {
talloc_free(*handle);
return ret;
}
if (ltdb_cache_load(module) != 0) {
talloc_free(*handle);
return LDB_ERR_OTHER;
}
ret = ltdb_store(module, msg, TDB_INSERT);
if (ret == LDB_SUCCESS) {
ltdb_modified(module, msg->dn);
if (ret != LDB_SUCCESS) {
(*handle)->status = ret;
return LDB_SUCCESS;
}
return ret;
ltdb_modified(module, msg->dn);
if (ltdb_ac->callback)
(*handle)->status = ltdb_ac->callback(module->ldb, ltdb_ac->context, NULL);
return LDB_SUCCESS;
}
static int ltdb_add(struct ldb_module *module, const struct ldb_message *msg)
{
struct ldb_async_handle *handle;
int ret;
ret = ltdb_add_async(module, msg, NULL, NULL, 0, &handle);
if (ret != LDB_SUCCESS)
return ret;
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
/*
delete a record from the database, not updating indexes (used for deleting
@ -269,16 +344,32 @@ int ltdb_delete_noindex(struct ldb_module *module, const struct ldb_dn *dn)
/*
delete a record from the database
*/
static int ltdb_delete(struct ldb_module *module, const struct ldb_dn *dn)
static int ltdb_delete_async(struct ldb_module *module, const struct ldb_dn *dn,
void *context,
int (*callback)(struct ldb_context *, void *, struct ldb_async_result *),
int timeout,
struct ldb_async_handle **handle)
{
struct ldb_message *msg = NULL;
int ret = LDB_ERR_OTHER;
struct ltdb_private *ltdb = talloc_get_type(module->private_data, struct ltdb_private);
struct ltdb_async_context *ltdb_ac;
struct ldb_message *msg;
int ret = LDB_ERR_OPERATIONS_ERROR;
*handle = NULL;
if (ltdb_cache_load(module) != 0) {
goto failed;
}
msg = talloc(module, struct ldb_message);
*handle = init_ltdb_handle(ltdb, module, context, callback, timeout);
if (*handle == NULL) {
goto failed;
}
ltdb_ac = talloc_get_type((*handle)->private_data, struct ltdb_async_context);
(*handle)->state = LDB_ASYNC_DONE;
(*handle)->status = LDB_SUCCESS;
msg = talloc(ltdb_ac, struct ldb_message);
if (msg == NULL) {
goto failed;
}
@ -288,8 +379,8 @@ static int ltdb_delete(struct ldb_module *module, const struct ldb_dn *dn)
ret = ltdb_search_dn1(module, dn, msg);
if (ret != 1) {
/* not finding the old record is an error */
ret = LDB_ERR_NO_SUCH_OBJECT;
goto failed;
(*handle)->status = LDB_ERR_NO_SUCH_OBJECT;
return LDB_SUCCESS;
}
ret = ltdb_delete_noindex(module, dn);
@ -299,16 +390,35 @@ static int ltdb_delete(struct ldb_module *module, const struct ldb_dn *dn)
/* remove any indexed attributes */
ret = ltdb_index_del(module, msg);
if (ret == LDB_SUCCESS) {
if (ret) {
goto failed;
}
ltdb_modified(module, dn);
} else
ret = LDB_ERR_OTHER;
talloc_free(msg);
return ret;
if (ltdb_ac->callback)
(*handle)->status = ltdb_ac->callback(module->ldb, ltdb_ac->context, NULL);
return LDB_SUCCESS;
failed:
talloc_free(msg);
talloc_free(*handle);
return ret;
}
static int ltdb_delete(struct ldb_module *module, const struct ldb_dn *dn)
{
struct ldb_async_handle *handle;
int ret;
ret = ltdb_delete_async(module, dn,
NULL, NULL, 0, &handle);
if (ret != LDB_SUCCESS)
return ret;
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
@ -624,42 +734,97 @@ failed:
/*
modify a record
*/
static int ltdb_modify(struct ldb_module *module, const struct ldb_message *msg)
static int ltdb_modify_async(struct ldb_module *module, const struct ldb_message *msg,
void *context,
int (*callback)(struct ldb_context *, void *, struct ldb_async_result *),
int timeout,
struct ldb_async_handle **handle)
{
int ret;
struct ltdb_private *ltdb = talloc_get_type(module->private_data, struct ltdb_private);
struct ltdb_async_context *ltdb_ac;
int ret = LDB_ERR_OPERATIONS_ERROR;
*handle = NULL;
*handle = init_ltdb_handle(ltdb, module, context, callback, timeout);
if (*handle == NULL) {
return ret;
}
ltdb_ac = talloc_get_type((*handle)->private_data, struct ltdb_async_context);
(*handle)->state = LDB_ASYNC_DONE;
(*handle)->status = LDB_SUCCESS;
ret = ltdb_check_special_dn(module, msg);
if (ret != 0) {
if (ret != LDB_SUCCESS) {
talloc_free(*handle);
return ret;
}
if (ltdb_cache_load(module) != 0) {
return -1;
talloc_free(*handle);
return LDB_ERR_OTHER;
}
ret = ltdb_modify_internal(module, msg);
if (ret == LDB_SUCCESS) {
ltdb_modified(module, msg->dn);
if (ret != LDB_SUCCESS) {
(*handle)->status = ret;
return LDB_SUCCESS;
}
ltdb_modified(module, msg->dn);
if (ltdb_ac->callback)
(*handle)->status = ltdb_ac->callback(module->ldb, ltdb_ac->context, NULL);
return LDB_SUCCESS;
}
static int ltdb_modify(struct ldb_module *module, const struct ldb_message *msg)
{
struct ldb_async_handle *handle;
int ret;
ret = ltdb_modify_async(module, msg, NULL, NULL, 0, &handle);
if (ret != LDB_SUCCESS)
return ret;
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
/*
rename a record
*/
static int ltdb_rename(struct ldb_module *module, const struct ldb_dn *olddn, const struct ldb_dn *newdn)
static int ltdb_rename_async(struct ldb_module *module, const struct ldb_dn *olddn, const struct ldb_dn *newdn,
void *context,
int (*callback)(struct ldb_context *, void *, struct ldb_async_result *),
int timeout,
struct ldb_async_handle **handle)
{
struct ltdb_private *ltdb = talloc_get_type(module->private_data, struct ltdb_private);
struct ltdb_async_context *ltdb_ac;
struct ldb_message *msg;
char *error_str;
int ret = LDB_ERR_OTHER;
int ret = LDB_ERR_OPERATIONS_ERROR;
*handle = NULL;
if (ltdb_cache_load(module) != 0) {
return ret;
}
msg = talloc(module, struct ldb_message);
*handle = init_ltdb_handle(ltdb, module, context, callback, timeout);
if (*handle == NULL) {
goto failed;
}
ltdb_ac = talloc_get_type((*handle)->private_data, struct ltdb_async_context);
(*handle)->state = LDB_ASYNC_DONE;
(*handle)->status = LDB_SUCCESS;
msg = talloc(ltdb_ac, struct ldb_message);
if (msg == NULL) {
goto failed;
}
@ -669,35 +834,53 @@ static int ltdb_rename(struct ldb_module *module, const struct ldb_dn *olddn, co
ret = ltdb_search_dn1(module, olddn, msg);
if (ret != 1) {
/* not finding the old record is an error */
ret = LDB_ERR_NO_SUCH_OBJECT;
goto failed;
(*handle)->status = LDB_ERR_NO_SUCH_OBJECT;
return LDB_SUCCESS;
}
msg->dn = ldb_dn_copy(msg, newdn);
if (!msg->dn) {
ret = LDB_ERR_OTHER;
ret = LDB_ERR_OPERATIONS_ERROR;
goto failed;
}
ret = ltdb_add(module, msg);
if (ret != LDB_SUCCESS) {
goto failed;
(*handle)->status = LDB_ERR_OPERATIONS_ERROR;
return LDB_SUCCESS;
}
ret = ltdb_delete(module, olddn);
error_str = talloc_strdup(module, ldb_errstring(module->ldb));
if (ret != LDB_SUCCESS) {
ltdb_delete(module, newdn);
(*handle)->status = ret;
return LDB_SUCCESS;
}
ldb_set_errstring(module->ldb, error_str);
if (ltdb_ac->callback)
(*handle)->status = ltdb_ac->callback(module->ldb, ltdb_ac->context, NULL);
talloc_free(msg);
return ret;
return LDB_SUCCESS;
failed:
talloc_free(msg);
talloc_free(*handle);
return ret;
}
static int ltdb_rename(struct ldb_module *module, const struct ldb_dn *olddn, const struct ldb_dn *newdn)
{
struct ldb_async_handle *handle;
int ret;
ret = ltdb_rename_async(module, olddn, newdn,
NULL, NULL, 0, &handle);
if (ret != LDB_SUCCESS)
return ret;
ret = ldb_async_wait(module->ldb, handle, LDB_WAIT_ALL);
talloc_free(handle);
return ret;
}
@ -734,10 +917,19 @@ static int ltdb_del_trans(struct ldb_module *module)
return LDB_SUCCESS;
}
static int ltdb_async_wait(struct ldb_async_handle *handle, enum ldb_async_wait_type type)
{
return handle->status;
}
static int ltdb_request(struct ldb_module *module, struct ldb_request *req)
{
/* check for oustanding critical controls and return an error if found */
if (req->controls != NULL) {
ldb_debug(module->ldb, LDB_DEBUG_WARNING, "Controls should not reach the ldb_tdb backend!\n");
}
if (check_critical_controls(req->controls)) {
return LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION;
}
@ -766,6 +958,50 @@ static int ltdb_request(struct ldb_module *module, struct ldb_request *req)
req->op.rename.olddn,
req->op.rename.newdn);
case LDB_ASYNC_SEARCH:
return ltdb_search_async(module,
req->op.search.base,
req->op.search.scope,
req->op.search.tree,
req->op.search.attrs,
req->async.context,
req->async.callback,
req->async.timeout,
&req->async.handle);
case LDB_ASYNC_ADD:
return ltdb_add_async(module,
req->op.add.message,
req->async.context,
req->async.callback,
req->async.timeout,
&req->async.handle);
case LDB_ASYNC_MODIFY:
return ltdb_modify_async(module,
req->op.mod.message,
req->async.context,
req->async.callback,
req->async.timeout,
&req->async.handle);
case LDB_ASYNC_DELETE:
return ltdb_delete_async(module,
req->op.del.dn,
req->async.context,
req->async.callback,
req->async.timeout,
&req->async.handle);
case LDB_ASYNC_RENAME:
return ltdb_rename_async(module,
req->op.rename.olddn,
req->op.rename.newdn,
req->async.context,
req->async.callback,
req->async.timeout,
&req->async.handle);
default:
return LDB_ERR_OPERATIONS_ERROR;
@ -868,5 +1104,7 @@ int ltdb_connect(struct ldb_context *ldb, const char *url,
ldb->modules->ops = &ltdb_ops;
ldb->sequence_number = ltdb_sequence_number;
ldb->async_wait = &ltdb_async_wait;
return 0;
}

37
source/lib/ldb/ldb_tdb/ldb_tdb.h
View File

@ -29,6 +29,25 @@ struct ltdb_private {
} *cache;
};
/*
the async local context
holds also internal search state during a full db search
*/
struct ltdb_async_context {
struct ldb_module *module;
/* search stuff */
struct ldb_parse_tree *tree;
const struct ldb_dn *base;
enum ldb_scope scope;
const char * const *attrs;
/* async stuff */
void *context;
int timeout;
int (*callback)(struct ldb_context *, void *, struct ldb_async_result *);
};
/* special record types */
#define LTDB_INDEX "@INDEX"
#define LTDB_INDEXLIST "@INDEXLIST"
@ -53,11 +72,7 @@ int ltdb_check_at_attributes_values(const struct ldb_val *value);
struct ldb_parse_tree;
int ltdb_search_indexed(struct ldb_module *module,
const struct ldb_dn *base,
enum ldb_scope scope,
struct ldb_parse_tree *tree,
const char * const attrs[], struct ldb_result **res);
int ltdb_search_indexed(struct ldb_async_handle *handle);
int ltdb_index_add(struct ldb_module *module, const struct ldb_message *msg);
int ltdb_index_del(struct ldb_module *module, const struct ldb_message *msg);
int ltdb_reindex(struct ldb_module *module);
@ -85,12 +100,24 @@ int ltdb_add_attr_results(struct ldb_module *module,
const char * const attrs[],
unsigned int *count,
struct ldb_message ***res);
int ltdb_filter_attrs(struct ldb_message *msg, const char * const *attrs);
int ltdb_search_async(struct ldb_module *module, const struct ldb_dn *base,
enum ldb_scope scope, struct ldb_parse_tree *tree,
const char * const *attrs,
void *context,
int (*callback)(struct ldb_context *, void *, struct ldb_async_result *),
int timeout,
struct ldb_async_handle **handle);
int ltdb_search_bytree(struct ldb_module *module, const struct ldb_dn *base,
enum ldb_scope scope, struct ldb_parse_tree *tree,
const char * const attrs[], struct ldb_result **res);
/* The following definitions come from lib/ldb/ldb_tdb/ldb_tdb.c */
struct ldb_async_handle *init_ltdb_handle(struct ltdb_private *ltdb, struct ldb_module *module,
void *context,
int (*callback)(struct ldb_context *, void *, struct ldb_async_result *),
int timeout);
struct TDB_DATA ltdb_key(struct ldb_module *module, const struct ldb_dn *dn);
int ltdb_store(struct ldb_module *module, const struct ldb_message *msg, int flgs);
int ltdb_delete_noindex(struct ldb_module *module, const struct ldb_dn *dn);