diff options
Diffstat (limited to 'source3/lib/ldb/ldb_tdb')
| -rw-r--r-- | source3/lib/ldb/ldb_tdb/ldb_cache.c | 560 | ||||
| -rw-r--r-- | source3/lib/ldb/ldb_tdb/ldb_index.c | 1178 | ||||
| -rw-r--r-- | source3/lib/ldb/ldb_tdb/ldb_pack.c | 293 | ||||
| -rw-r--r-- | source3/lib/ldb/ldb_tdb/ldb_search.c | 527 | ||||
| -rw-r--r-- | source3/lib/ldb/ldb_tdb/ldb_tdb.c | 1087 | ||||
| -rw-r--r-- | source3/lib/ldb/ldb_tdb/ldb_tdb.h | 123 | ||||
| -rw-r--r-- | source3/lib/ldb/ldb_tdb/ldb_tdb_wrap.c | 141 |
7 files changed, 0 insertions, 3909 deletions
diff --git a/source3/lib/ldb/ldb_tdb/ldb_cache.c b/source3/lib/ldb/ldb_tdb/ldb_cache.c deleted file mode 100644 index 16e8c55aec..0000000000 --- a/source3/lib/ldb/ldb_tdb/ldb_cache.c +++ /dev/null @@ -1,560 +0,0 @@ -/* - ldb database library - - Copyright (C) Andrew Tridgell 2004 - - ** NOTE! The following LGPL license applies to the ldb - ** library. This does NOT imply that all of Samba is released - ** under the LGPL - - 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, - 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/>. -*/ - -/* - * Name: ldb - * - * Component: ldb tdb cache functions - * - * Description: cache special records in a ldb/tdb - * - * Author: Andrew Tridgell - */ - -#include "includes.h" -#include "ldb/include/includes.h" - -#include "ldb/ldb_tdb/ldb_tdb.h" - -#define LTDB_FLAG_CASE_INSENSITIVE (1<<0) -#define LTDB_FLAG_INTEGER (1<<1) -#define LTDB_FLAG_HIDDEN (1<<2) -#define LTDB_FLAG_OBJECTCLASS (1<<3) - -int ltdb_attribute_flags(struct ldb_module *module, const char *attr_name); - -/* valid attribute flags */ -static const struct { - const char *name; - int value; -} ltdb_valid_attr_flags[] = { - { "CASE_INSENSITIVE", LTDB_FLAG_CASE_INSENSITIVE }, - { "INTEGER", LTDB_FLAG_INTEGER }, - { "HIDDEN", LTDB_FLAG_HIDDEN }, - { "NONE", 0 }, - { NULL, 0 } -}; - - -/* - de-register any special handlers for @ATTRIBUTES -*/ -static void ltdb_attributes_unload(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - struct ldb_message *msg; - int i; - - if (ltdb->cache->attributes == NULL) { - /* no previously loaded attributes */ - return; - } - - msg = ltdb->cache->attributes; - for (i=0;i<msg->num_elements;i++) { - ldb_remove_attrib_handler(module->ldb, msg->elements[i].name); - } - - talloc_free(ltdb->cache->attributes); - ltdb->cache->attributes = NULL; -} - -/* - add up the attrib flags for a @ATTRIBUTES element -*/ -static int ltdb_attributes_flags(struct ldb_message_element *el, unsigned *v) -{ - int i; - unsigned value = 0; - for (i=0;i<el->num_values;i++) { - int j; - for (j=0;ltdb_valid_attr_flags[j].name;j++) { - if (strcmp(ltdb_valid_attr_flags[j].name, - (char *)el->values[i].data) == 0) { - value |= ltdb_valid_attr_flags[j].value; - break; - } - } - if (ltdb_valid_attr_flags[j].name == NULL) { - return -1; - } - } - *v = value; - return 0; -} - -/* - register any special handlers from @ATTRIBUTES -*/ -static int ltdb_attributes_load(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - struct ldb_message *msg = ltdb->cache->attributes; - struct ldb_dn *dn; - int i; - - dn = ldb_dn_explode(module->ldb, LTDB_ATTRIBUTES); - if (dn == NULL) goto failed; - - if (ltdb_search_dn1(module, dn, msg) == -1) { - talloc_free(dn); - goto failed; - } - talloc_free(dn); - /* mapping these flags onto ldap 'syntaxes' isn't strictly correct, - but its close enough for now */ - for (i=0;i<msg->num_elements;i++) { - unsigned flags; - const char *syntax; - const struct ldb_attrib_handler *h; - struct ldb_attrib_handler h2; - - if (ltdb_attributes_flags(&msg->elements[i], &flags) != 0) { - ldb_debug(module->ldb, LDB_DEBUG_ERROR, "Invalid @ATTRIBUTES element for '%s'\n", msg->elements[i].name); - goto failed; - } - switch (flags & ~LTDB_FLAG_HIDDEN) { - case 0: - syntax = LDB_SYNTAX_OCTET_STRING; - break; - case LTDB_FLAG_CASE_INSENSITIVE: - syntax = LDB_SYNTAX_DIRECTORY_STRING; - break; - case LTDB_FLAG_INTEGER: - syntax = LDB_SYNTAX_INTEGER; - break; - default: - ldb_debug(module->ldb, LDB_DEBUG_ERROR, - "Invalid flag combination 0x%x for '%s' in @ATTRIBUTES\n", - flags, msg->elements[i].name); - goto failed; - } - - h = ldb_attrib_handler_syntax(module->ldb, syntax); - if (h == NULL) { - ldb_debug(module->ldb, LDB_DEBUG_ERROR, - "Invalid attribute syntax '%s' for '%s' in @ATTRIBUTES\n", - syntax, msg->elements[i].name); - goto failed; - } - h2 = *h; - h2.attr = msg->elements[i].name; - h2.flags |= LDB_ATTR_FLAG_ALLOCATED; - if (ldb_set_attrib_handlers(module->ldb, &h2, 1) != 0) { - goto failed; - } - } - - return 0; -failed: - return -1; -} - - -/* - register any subclasses from @SUBCLASSES -*/ -static int ltdb_subclasses_load(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - struct ldb_message *msg = ltdb->cache->subclasses; - struct ldb_dn *dn; - int i, j; - - dn = ldb_dn_explode(module->ldb, LTDB_SUBCLASSES); - if (dn == NULL) goto failed; - - if (ltdb_search_dn1(module, dn, msg) == -1) { - talloc_free(dn); - goto failed; - } - talloc_free(dn); - - for (i=0;i<msg->num_elements;i++) { - struct ldb_message_element *el = &msg->elements[i]; - for (j=0;j<el->num_values;j++) { - if (ldb_subclass_add(module->ldb, el->name, - (char *)el->values[j].data) != 0) { - goto failed; - } - } - } - - return 0; -failed: - return -1; -} - - -/* - de-register any @SUBCLASSES -*/ -static void ltdb_subclasses_unload(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - struct ldb_message *msg; - int i; - - if (ltdb->cache->subclasses == NULL) { - /* no previously loaded subclasses */ - return; - } - - msg = ltdb->cache->subclasses; - for (i=0;i<msg->num_elements;i++) { - ldb_subclass_remove(module->ldb, msg->elements[i].name); - } - - talloc_free(ltdb->cache->subclasses); - ltdb->cache->subclasses = NULL; -} - - -/* - initialise the baseinfo record -*/ -static int ltdb_baseinfo_init(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - struct ldb_message *msg; - struct ldb_message_element el; - struct ldb_val val; - int ret; - /* the initial sequence number must be different from the one - set in ltdb_cache_free(). Thanks to Jon for pointing this - out. */ - const char *initial_sequence_number = "1"; - - ltdb->sequence_number = atof(initial_sequence_number); - - msg = talloc(ltdb, struct ldb_message); - if (msg == NULL) { - goto failed; - } - - msg->num_elements = 1; - msg->elements = ⪙ - msg->dn = ldb_dn_explode(msg, LTDB_BASEINFO); - if (!msg->dn) { - goto failed; - } - el.name = talloc_strdup(msg, LTDB_SEQUENCE_NUMBER); - if (!el.name) { - goto failed; - } - el.values = &val; - el.num_values = 1; - el.flags = 0; - val.data = (uint8_t *)talloc_strdup(msg, initial_sequence_number); - if (!val.data) { - goto failed; - } - val.length = 1; - - ret = ltdb_store(module, msg, TDB_INSERT); - - talloc_free(msg); - - return ret; - -failed: - talloc_free(msg); - errno = ENOMEM; - return -1; -} - -/* - free any cache records - */ -static void ltdb_cache_free(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - - ltdb->sequence_number = 0; - talloc_free(ltdb->cache); - ltdb->cache = NULL; -} - -/* - force a cache reload -*/ -int ltdb_cache_reload(struct ldb_module *module) -{ - ltdb_attributes_unload(module); - ltdb_subclasses_unload(module); - ltdb_cache_free(module); - return ltdb_cache_load(module); -} - -/* - load the cache records -*/ -int ltdb_cache_load(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - struct ldb_dn *baseinfo_dn = NULL; - struct ldb_dn *indexlist_dn = NULL; - uint64_t seq; - struct ldb_message *baseinfo = NULL; - - /* a very fast check to avoid extra database reads */ - if (ltdb->cache != NULL && - tdb_get_seqnum(ltdb->tdb) == ltdb->tdb_seqnum) { - return 0; - } - - if (ltdb->cache == NULL) { - ltdb->cache = talloc_zero(ltdb, struct ltdb_cache); - if (ltdb->cache == NULL) goto failed; - ltdb->cache->indexlist = talloc_zero(ltdb->cache, struct ldb_message); - ltdb->cache->subclasses = talloc_zero(ltdb->cache, struct ldb_message); - ltdb->cache->attributes = talloc_zero(ltdb->cache, struct ldb_message); - if (ltdb->cache->indexlist == NULL || - ltdb->cache->subclasses == NULL || - ltdb->cache->attributes == NULL) { - goto failed; - } - } - - baseinfo = talloc(ltdb->cache, struct ldb_message); - if (baseinfo == NULL) goto failed; - - baseinfo_dn = ldb_dn_explode(module->ldb, LTDB_BASEINFO); - if (baseinfo_dn == NULL) goto failed; - - if (ltdb_search_dn1(module, baseinfo_dn, baseinfo) == -1) { - goto failed; - } - - /* possibly initialise the baseinfo */ - if (!baseinfo->dn) { - if (ltdb_baseinfo_init(module) != 0) { - goto failed; - } - if (ltdb_search_dn1(module, baseinfo_dn, baseinfo) != 1) { - goto failed; - } - } - - ltdb->tdb_seqnum = tdb_get_seqnum(ltdb->tdb); - - /* if the current internal sequence number is the same as the one - in the database then assume the rest of the cache is OK */ - seq = ldb_msg_find_attr_as_uint64(baseinfo, LTDB_SEQUENCE_NUMBER, 0); - if (seq == ltdb->sequence_number) { - goto done; - } - ltdb->sequence_number = seq; - - talloc_free(ltdb->cache->last_attribute.name); - memset(<db->cache->last_attribute, 0, sizeof(ltdb->cache->last_attribute)); - - ltdb_attributes_unload(module); - ltdb_subclasses_unload(module); - - talloc_free(ltdb->cache->indexlist); - talloc_free(ltdb->cache->subclasses); - - ltdb->cache->indexlist = talloc_zero(ltdb->cache, struct ldb_message); - ltdb->cache->subclasses = talloc_zero(ltdb->cache, struct ldb_message); - ltdb->cache->attributes = talloc_zero(ltdb->cache, struct ldb_message); - if (ltdb->cache->indexlist == NULL || - ltdb->cache->subclasses == NULL || - ltdb->cache->attributes == NULL) { - goto failed; - } - - indexlist_dn = ldb_dn_explode(module->ldb, LTDB_INDEXLIST); - if (indexlist_dn == NULL) goto failed; - - if (ltdb_search_dn1(module, indexlist_dn, ltdb->cache->indexlist) == -1) { - goto failed; - } - - if (ltdb_attributes_load(module) == -1) { - goto failed; - } - if (ltdb_subclasses_load(module) == -1) { - goto failed; - } - -done: - talloc_free(baseinfo); - talloc_free(baseinfo_dn); - talloc_free(indexlist_dn); - return 0; - -failed: - talloc_free(baseinfo); - talloc_free(baseinfo_dn); - talloc_free(indexlist_dn); - return -1; -} - - -/* - increase the sequence number to indicate a database change -*/ -int ltdb_increase_sequence_number(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - struct ldb_message *msg; - struct ldb_message_element el[2]; - struct ldb_val val; - struct ldb_val val_time; - time_t t = time(NULL); - char *s = NULL; - int ret; - - msg = talloc(ltdb, struct ldb_message); - if (msg == NULL) { - errno = ENOMEM; - return -1; - } - - s = talloc_asprintf(msg, "%llu", ltdb->sequence_number+1); - if (!s) { - errno = ENOMEM; - return -1; - } - - msg->num_elements = ARRAY_SIZE(el); - msg->elements = el; - msg->dn = ldb_dn_explode(msg, LTDB_BASEINFO); - if (msg->dn == NULL) { - talloc_free(msg); - errno = ENOMEM; - return -1; - } - el[0].name = talloc_strdup(msg, LTDB_SEQUENCE_NUMBER); - if (el[0].name == NULL) { - talloc_free(msg); - errno = ENOMEM; - return -1; - } - el[0].values = &val; - el[0].num_values = 1; - el[0].flags = LDB_FLAG_MOD_REPLACE; - val.data = (uint8_t *)s; - val.length = strlen(s); - - el[1].name = talloc_strdup(msg, LTDB_MOD_TIMESTAMP); - if (el[1].name == NULL) { - talloc_free(msg); - errno = ENOMEM; - return -1; - } - el[1].values = &val_time; - el[1].num_values = 1; - el[1].flags = LDB_FLAG_MOD_REPLACE; - - s = ldb_timestring(msg, t); - if (s == NULL) { - return -1; - } - - val_time.data = (uint8_t *)s; - val_time.length = strlen(s); - - ret = ltdb_modify_internal(module, msg); - - talloc_free(msg); - - if (ret == 0) { - ltdb->sequence_number += 1; - } - - return ret; -} - - -/* - return the attribute flags from the @ATTRIBUTES record - for the given attribute -*/ -int ltdb_attribute_flags(struct ldb_module *module, const char *attr_name) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - const struct ldb_message_element *attr_el; - int i, j, ret=0; - - if (ltdb->cache->last_attribute.name && - ldb_attr_cmp(ltdb->cache->last_attribute.name, attr_name) == 0) { - return ltdb->cache->last_attribute.flags; - } - - /* objectclass is a special default case */ - if (ldb_attr_cmp(attr_name, LTDB_OBJECTCLASS) == 0) { - ret = LTDB_FLAG_OBJECTCLASS | LTDB_FLAG_CASE_INSENSITIVE; - } - - attr_el = ldb_msg_find_element(ltdb->cache->attributes, attr_name); - - if (!attr_el) { - /* check if theres a wildcard attribute */ - attr_el = ldb_msg_find_element(ltdb->cache->attributes, "*"); - - if (!attr_el) { - return ret; - } - } - - for (i = 0; i < attr_el->num_values; i++) { - for (j=0; ltdb_valid_attr_flags[j].name; j++) { - if (strcmp(ltdb_valid_attr_flags[j].name, - (char *)attr_el->values[i].data) == 0) { - ret |= ltdb_valid_attr_flags[j].value; - } - } - } - - talloc_free(ltdb->cache->last_attribute.name); - - ltdb->cache->last_attribute.name = talloc_strdup(ltdb->cache, attr_name); - ltdb->cache->last_attribute.flags = ret; - - return ret; -} - -int ltdb_check_at_attributes_values(const struct ldb_val *value) -{ - int i; - - for (i = 0; ltdb_valid_attr_flags[i].name != NULL; i++) { - if ((strcmp(ltdb_valid_attr_flags[i].name, (char *)value->data) == 0)) { - return 0; - } - } - - return -1; -} - diff --git a/source3/lib/ldb/ldb_tdb/ldb_index.c b/source3/lib/ldb/ldb_tdb/ldb_index.c deleted file mode 100644 index 5545661f7a..0000000000 --- a/source3/lib/ldb/ldb_tdb/ldb_index.c +++ /dev/null @@ -1,1178 +0,0 @@ -/* - ldb database library - - Copyright (C) Andrew Tridgell 2004 - - ** NOTE! The following LGPL license applies to the ldb - ** library. This does NOT imply that all of Samba is released - ** under the LGPL - - 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, - 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/>. -*/ - -/* - * Name: ldb - * - * Component: ldb tdb backend - indexing - * - * Description: indexing routines for ldb tdb backend - * - * Author: Andrew Tridgell - */ - -#include "includes.h" -#include "ldb/include/includes.h" - -#include "ldb/ldb_tdb/ldb_tdb.h" - -/* - find an element in a list, using the given comparison function and - assuming that the list is already sorted using comp_fn - - return -1 if not found, or the index of the first occurance of needle if found -*/ -static int ldb_list_find(const void *needle, - const void *base, size_t nmemb, size_t size, - comparison_fn_t comp_fn) -{ - const char *base_p = (const char *)base; - size_t min_i, max_i, test_i; - - if (nmemb == 0) { - return -1; - } - - min_i = 0; - max_i = nmemb-1; - - while (min_i < max_i) { - int r; - - test_i = (min_i + max_i) / 2; - /* the following cast looks strange, but is - correct. The key to understanding it is that base_p - is a pointer to an array of pointers, so we have to - dereference it after casting to void **. The strange - const in the middle gives us the right type of pointer - after the dereference (tridge) */ - r = comp_fn(needle, *(void * const *)(base_p + (size * test_i))); - if (r == 0) { - /* scan back for first element */ - while (test_i > 0 && - comp_fn(needle, *(void * const *)(base_p + (size * (test_i-1)))) == 0) { - test_i--; - } - return test_i; - } - if (r < 0) { - if (test_i == 0) { - return -1; - } - max_i = test_i - 1; - } - if (r > 0) { - min_i = test_i + 1; - } - } - - if (comp_fn(needle, *(void * const *)(base_p + (size * min_i))) == 0) { - return min_i; - } - - return -1; -} - -struct dn_list { - unsigned int count; - char **dn; -}; - -/* - return the dn key to be used for an index - caller frees -*/ -static struct ldb_dn *ldb_dn_key(struct ldb_context *ldb, - const char *attr, const struct ldb_val *value) -{ - struct ldb_dn *ret; - char *dn; - struct ldb_val v; - const struct ldb_attrib_handler *h; - char *attr_folded; - - attr_folded = ldb_attr_casefold(ldb, attr); - if (!attr_folded) { - return NULL; - } - - h = ldb_attrib_handler(ldb, attr); - if (h->canonicalise_fn(ldb, ldb, value, &v) != 0) { - /* canonicalisation can be refused. For example, - a attribute that takes wildcards will refuse to canonicalise - if the value contains a wildcard */ - talloc_free(attr_folded); - return NULL; - } - if (ldb_should_b64_encode(&v)) { - char *vstr = ldb_base64_encode(ldb, (char *)v.data, v.length); - if (!vstr) return NULL; - dn = talloc_asprintf(ldb, "%s:%s::%s", LTDB_INDEX, attr_folded, vstr); - talloc_free(vstr); - if (v.data != value->data) { - talloc_free(v.data); - } - talloc_free(attr_folded); - if (dn == NULL) return NULL; - goto done; - } - - dn = talloc_asprintf(ldb, "%s:%s:%.*s", - LTDB_INDEX, attr_folded, (int)v.length, (char *)v.data); - - if (v.data != value->data) { - talloc_free(v.data); - } - talloc_free(attr_folded); - -done: - ret = ldb_dn_explode(ldb, dn); - talloc_free(dn); - return ret; -} - -/* - see if a attribute value is in the list of indexed attributes -*/ -static int ldb_msg_find_idx(const struct ldb_message *msg, const char *attr, - unsigned int *v_idx, const char *key) -{ - unsigned int i, j; - for (i=0;i<msg->num_elements;i++) { - if (ldb_attr_cmp(msg->elements[i].name, key) == 0) { - const struct ldb_message_element *el = - &msg->elements[i]; - for (j=0;j<el->num_values;j++) { - if (ldb_attr_cmp((char *)el->values[j].data, attr) == 0) { - if (v_idx) { - *v_idx = j; - } - return i; - } - } - } - } - return -1; -} - -/* used in sorting dn lists */ -static int list_cmp(const char **s1, const char **s2) -{ - return strcmp(*s1, *s2); -} - -/* - return a list of dn's that might match a simple indexed search or - */ -static int ltdb_index_dn_simple(struct ldb_module *module, - const struct ldb_parse_tree *tree, - const struct ldb_message *index_list, - struct dn_list *list) -{ - struct ldb_context *ldb = module->ldb; - struct ldb_dn *dn; - int ret; - unsigned int i, j; - struct ldb_message *msg; - - list->count = 0; - list->dn = NULL; - - /* if the attribute isn't in the list of indexed attributes then - this node needs a full search */ - if (ldb_msg_find_idx(index_list, tree->u.equality.attr, NULL, LTDB_IDXATTR) == -1) { - return -1; - } - - /* the attribute is indexed. Pull the list of DNs that match the - search criterion */ - dn = ldb_dn_key(ldb, tree->u.equality.attr, &tree->u.equality.value); - if (!dn) return -1; - - msg = talloc(list, struct ldb_message); - if (msg == NULL) { - return -1; - } - - ret = ltdb_search_dn1(module, dn, msg); - talloc_free(dn); - if (ret == 0 || ret == -1) { - return ret; - } - - for (i=0;i<msg->num_elements;i++) { - struct ldb_message_element *el; - - if (strcmp(msg->elements[i].name, LTDB_IDX) != 0) { - continue; - } - - el = &msg->elements[i]; - - list->dn = talloc_array(list, char *, el->num_values); - if (!list->dn) { - talloc_free(msg); - return -1; - } - - for (j=0;j<el->num_values;j++) { - list->dn[list->count] = - talloc_strdup(list->dn, (char *)el->values[j].data); - if (!list->dn[list->count]) { - talloc_free(msg); - return -1; - } - list->count++; - } - } - - talloc_free(msg); - - if (list->count > 1) { - qsort(list->dn, list->count, sizeof(char *), (comparison_fn_t) list_cmp); - } - - return 1; -} - - -static int list_union(struct ldb_context *, struct dn_list *, const struct dn_list *); - -/* - return a list of dn's that might match a simple indexed search on - the special objectclass attribute - */ -static int ltdb_index_dn_objectclass(struct ldb_module *module, - const struct ldb_parse_tree *tree, - const struct ldb_message *index_list, - struct dn_list *list) -{ - struct ldb_context *ldb = module->ldb; - unsigned int i; - int ret; - const char *target = (const char *)tree->u.equality.value.data; - const char **subclasses; - - list->count = 0; - list->dn = NULL; - - ret = ltdb_index_dn_simple(module, tree, index_list, list); - - subclasses = ldb_subclass_list(module->ldb, target); - - if (subclasses == NULL) { - return ret; - } - - for (i=0;subclasses[i];i++) { - struct ldb_parse_tree tree2; - struct dn_list *list2; - tree2.operation = LDB_OP_EQUALITY; - tree2.u.equality.attr = LTDB_OBJECTCLASS; - if (!tree2.u.equality.attr) { - return -1; - } - tree2.u.equality.value.data = - (uint8_t *)talloc_strdup(list, subclasses[i]); - if (tree2.u.equality.value.data == NULL) { - return -1; - } - tree2.u.equality.value.length = strlen(subclasses[i]); - list2 = talloc(list, struct dn_list); - if (list2 == NULL) { - talloc_free(tree2.u.equality.value.data); - return -1; - } - if (ltdb_index_dn_objectclass(module, &tree2, - index_list, list2) == 1) { - if (list->count == 0) { - *list = *list2; - ret = 1; - } else { - list_union(ldb, list, list2); - talloc_free(list2); - } - } - talloc_free(tree2.u.equality.value.data); - } - - return ret; -} - -/* - return a list of dn's that might match a leaf indexed search - */ -static int ltdb_index_dn_leaf(struct ldb_module *module, - const struct ldb_parse_tree *tree, - const struct ldb_message *index_list, - struct dn_list *list) -{ - if (ldb_attr_cmp(tree->u.equality.attr, LTDB_OBJECTCLASS) == 0) { - return ltdb_index_dn_objectclass(module, tree, index_list, list); - } - if (ldb_attr_dn(tree->u.equality.attr) == 0) { - list->dn = talloc_array(list, char *, 1); - if (list->dn == NULL) { - ldb_oom(module->ldb); - return -1; - } - list->dn[0] = talloc_strdup(list->dn, (char *)tree->u.equality.value.data); - if (list->dn[0] == NULL) { - ldb_oom(module->ldb); - return -1; - } - list->count = 1; - return 1; - } - return ltdb_index_dn_simple(module, tree, index_list, list); -} - - -/* - list intersection - list = list & list2 - relies on the lists being sorted -*/ -static int list_intersect(struct ldb_context *ldb, - struct dn_list *list, const struct dn_list *list2) -{ - struct dn_list *list3; - unsigned int i; - - if (list->count == 0 || list2->count == 0) { - /* 0 & X == 0 */ - return 0; - } - - list3 = talloc(ldb, struct dn_list); - if (list3 == NULL) { - return -1; - } - - list3->dn = talloc_array(list3, char *, list->count); - if (!list3->dn) { - talloc_free(list3); - return -1; - } - list3->count = 0; - - for (i=0;i<list->count;i++) { - if (ldb_list_find(list->dn[i], list2->dn, list2->count, - sizeof(char *), (comparison_fn_t)strcmp) != -1) { - list3->dn[list3->count] = talloc_move(list3->dn, &list->dn[i]); - list3->count++; - } else { - talloc_free(list->dn[i]); - } - } - - talloc_free(list->dn); - list->dn = talloc_move(list, &list3->dn); - list->count = list3->count; - talloc_free(list3); - - return 0; -} - - -/* - list union - list = list | list2 - relies on the lists being sorted -*/ -static int list_union(struct ldb_context *ldb, - struct dn_list *list, const struct dn_list *list2) -{ - unsigned int i; - char **d; - unsigned int count = list->count; - - if (list->count == 0 && list2->count == 0) { - /* 0 | 0 == 0 */ - return 0; - } - - d = talloc_realloc(list, list->dn, char *, list->count + list2->count); - if (!d) { - return -1; - } - list->dn = d; - - for (i=0;i<list2->count;i++) { - if (ldb_list_find(list2->dn[i], list->dn, count, - sizeof(char *), (comparison_fn_t)strcmp) == -1) { - list->dn[list->count] = talloc_strdup(list->dn, list2->dn[i]); - if (!list->dn[list->count]) { - return -1; - } - list->count++; - } - } - - if (list->count != count) { - qsort(list->dn, list->count, sizeof(char *), (comparison_fn_t)list_cmp); - } - - return 0; -} - -static int ltdb_index_dn(struct ldb_module *module, - const struct ldb_parse_tree *tree, - const struct ldb_message *index_list, - struct dn_list *list); - - -/* - OR two index results - */ -static int ltdb_index_dn_or(struct ldb_module *module, - const struct ldb_parse_tree *tree, - const struct ldb_message *index_list, - struct dn_list *list) -{ - struct ldb_context *ldb = module->ldb; - unsigned int i; - int ret; - - ret = -1; - list->dn = NULL; - list->count = 0; - - for (i=0;i<tree->u.list.num_elements;i++) { - struct dn_list *list2; - int v; - - list2 = talloc(module, struct dn_list); - if (list2 == NULL) { - return -1; - } - - v = ltdb_index_dn(module, tree->u.list.elements[i], index_list, list2); - - if (v == 0) { - /* 0 || X == X */ - if (ret == -1) { - ret = 0; - } - talloc_free(list2); - continue; - } - - if (v == -1) { - /* 1 || X == 1 */ - talloc_free(list->dn); - talloc_free(list2); - return -1; - } - - if (ret == -1) { - ret = 1; - list->dn = talloc_move(list, &list2->dn); - list->count = list2->count; - } else { - if (list_union(ldb, list, list2) == -1) { - talloc_free(list2); - return -1; - } - ret = 1; - } - talloc_free(list2); - } - - if (list->count == 0) { - return 0; - } - - return ret; -} - - -/* - NOT an index results - */ -static int ltdb_index_dn_not(struct ldb_module *module, - const struct ldb_parse_tree *tree, - const struct ldb_message *index_list, - struct dn_list *list) -{ - /* the only way to do an indexed not would be if we could - negate the not via another not or if we knew the total - number of database elements so we could know that the - existing expression covered the whole database. - - instead, we just give up, and rely on a full index scan - (unless an outer & manages to reduce the list) - */ - return -1; -} - -/* - AND two index results - */ -static int ltdb_index_dn_and(struct ldb_module *module, - const struct ldb_parse_tree *tree, - const struct ldb_message *index_list, - struct dn_list *list) -{ - struct ldb_context *ldb = module->ldb; - unsigned int i; - int ret; - - ret = -1; - list->dn = NULL; - list->count = 0; - - for (i=0;i<tree->u.list.num_elements;i++) { - struct dn_list *list2; - int v; - - list2 = talloc(module, struct dn_list); - if (list2 == NULL) { - return -1; - } - - v = ltdb_index_dn(module, tree->u.list.elements[i], index_list, list2); - - if (v == 0) { - /* 0 && X == 0 */ - talloc_free(list->dn); - talloc_free(list2); - return 0; - } - - if (v == -1) { - talloc_free(list2); - continue; - } - - if (ret == -1) { - ret = 1; - talloc_free(list->dn); - list->dn = talloc_move(list, &list2->dn); - list->count = list2->count; - } else { - if (list_intersect(ldb, list, list2) == -1) { - talloc_free(list2); - return -1; - } - } - - talloc_free(list2); - - if (list->count == 0) { - talloc_free(list->dn); - return 0; - } - } - - return ret; -} - -/* - return a list of dn's that might match a indexed search or - -1 if an error. return 0 for no matches, or 1 for matches - */ -static int ltdb_index_dn(struct ldb_module *module, - const struct ldb_parse_tree *tree, - const struct ldb_message *index_list, - struct dn_list *list) -{ - int ret = -1; - - switch (tree->operation) { - case LDB_OP_AND: - ret = ltdb_index_dn_and(module, tree, index_list, list); - break; - - case LDB_OP_OR: - ret = ltdb_index_dn_or(module, tree, index_list, list); - break; - - case LDB_OP_NOT: - ret = ltdb_index_dn_not(module, tree, index_list, list); - break; - - case LDB_OP_EQUALITY: - ret = ltdb_index_dn_leaf(module, tree, index_list, list); - break; - - case LDB_OP_SUBSTRING: - case LDB_OP_GREATER: - case LDB_OP_LESS: - case LDB_OP_PRESENT: - case LDB_OP_APPROX: - case LDB_OP_EXTENDED: - /* we can't index with fancy bitops yet */ - ret = -1; - break; - } - - return ret; -} - -/* - filter a candidate dn_list from an indexed search into a set of results - extracting just the given attributes -*/ -static int ltdb_index_filter(const struct dn_list *dn_list, - struct ldb_handle *handle) -{ - struct ltdb_context *ac = talloc_get_type(handle->private_data, struct ltdb_context); - struct ldb_reply *ares = NULL; - unsigned int i; - - if (!ac) { - return LDB_ERR_OPERATIONS_ERROR; - } - - for (i = 0; i < dn_list->count; i++) { - struct ldb_dn *dn; - int ret; - - ares = talloc_zero(ac, struct ldb_reply); - if (!ares) { - handle->status = LDB_ERR_OPERATIONS_ERROR; - handle->state = LDB_ASYNC_DONE; - return LDB_ERR_OPERATIONS_ERROR; - } - - 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(ares); - return LDB_ERR_OPERATIONS_ERROR; - } - - 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(ares); - continue; - } - - if (ret == -1) { - /* an internal error */ - talloc_free(ares); - return LDB_ERR_OPERATIONS_ERROR; - } - - if (!ldb_match_msg(ac->module->ldb, ares->message, ac->tree, ac->base, ac->scope)) { - talloc_free(ares); - continue; - } - - /* 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; - } - } - - return LDB_SUCCESS; -} - -/* - search the database with a LDAP-like expression using indexes - 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_handle *handle) -{ - struct ltdb_context *ac; - struct ltdb_private *ltdb; - struct dn_list *dn_list; - int ret; - - if (!(ac = talloc_get_type(handle->private_data, - struct ltdb_context)) || - !(ltdb = talloc_get_type(ac->module->private_data, - struct ltdb_private))) { - return -1; - } - - if (ltdb->cache->indexlist->num_elements == 0 && - ac->scope != LDB_SCOPE_BASE) { - /* no index list? must do full search */ - return -1; - } - - dn_list = talloc(handle, struct dn_list); - if (dn_list == NULL) { - return -1; - } - - 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(ac->module->ldb); - return -1; - } - dn_list->dn[0] = ldb_dn_linearize(dn_list, ac->base); - if (dn_list->dn[0] == NULL) { - ldb_oom(ac->module->ldb); - return -1; - } - dn_list->count = 1; - ret = 1; - } else { - 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 = ltdb_index_filter(dn_list, handle); - handle->status = ret; - handle->state = LDB_ASYNC_DONE; - } - - talloc_free(dn_list); - - return ret; -} - -/* - add a index element where this is the first indexed DN for this value -*/ -static int ltdb_index_add1_new(struct ldb_context *ldb, - struct ldb_message *msg, - struct ldb_message_element *el, - const char *dn) -{ - struct ldb_message_element *el2; - - /* add another entry */ - el2 = talloc_realloc(msg, msg->elements, - struct ldb_message_element, msg->num_elements+1); - if (!el2) { - return -1; - } - - msg->elements = el2; - msg->elements[msg->num_elements].name = talloc_strdup(msg->elements, LTDB_IDX); - if (!msg->elements[msg->num_elements].name) { - return -1; - } - msg->elements[msg->num_elements].num_values = 0; - msg->elements[msg->num_elements].values = talloc(msg->elements, struct ldb_val); - if (!msg->elements[msg->num_elements].values) { - return -1; - } - msg->elements[msg->num_elements].values[0].length = strlen(dn); - msg->elements[msg->num_elements].values[0].data = discard_const_p(uint8_t, dn); - msg->elements[msg->num_elements].num_values = 1; - msg->num_elements++; - - return 0; -} - - -/* - add a index element where this is not the first indexed DN for this - value -*/ -static int ltdb_index_add1_add(struct ldb_context *ldb, - struct ldb_message *msg, - struct ldb_message_element *el, - int idx, - const char *dn) -{ - struct ldb_val *v2; - unsigned int i; - - /* for multi-valued attributes we can end up with repeats */ - for (i=0;i<msg->elements[idx].num_values;i++) { - if (strcmp(dn, (char *)msg->elements[idx].values[i].data) == 0) { - return 0; - } - } - - v2 = talloc_realloc(msg->elements, msg->elements[idx].values, - struct ldb_val, - msg->elements[idx].num_values+1); - if (!v2) { - return -1; - } - msg->elements[idx].values = v2; - - msg->elements[idx].values[msg->elements[idx].num_values].length = strlen(dn); - msg->elements[idx].values[msg->elements[idx].num_values].data = discard_const_p(uint8_t, dn); - msg->elements[idx].num_values++; - - return 0; -} - -/* - add an index entry for one message element -*/ -static int ltdb_index_add1(struct ldb_module *module, const char *dn, - struct ldb_message_element *el, int v_idx) -{ - struct ldb_context *ldb = module->ldb; - struct ldb_message *msg; - struct ldb_dn *dn_key; - int ret; - unsigned int i; - - msg = talloc(module, struct ldb_message); - if (msg == NULL) { - errno = ENOMEM; - return -1; - } - - dn_key = ldb_dn_key(ldb, el->name, &el->values[v_idx]); - if (!dn_key) { - talloc_free(msg); - errno = ENOMEM; - return -1; - } - talloc_steal(msg, dn_key); - - ret = ltdb_search_dn1(module, dn_key, msg); - if (ret == -1) { - talloc_free(msg); - return -1; - } - - if (ret == 0) { - msg->dn = dn_key; - msg->num_elements = 0; - msg->elements = NULL; - } - - for (i=0;i<msg->num_elements;i++) { - if (strcmp(LTDB_IDX, msg->elements[i].name) == 0) { - break; - } - } - - if (i == msg->num_elements) { - ret = ltdb_index_add1_new(ldb, msg, el, dn); - } else { - ret = ltdb_index_add1_add(ldb, msg, el, i, dn); - } - - if (ret == 0) { - ret = ltdb_store(module, msg, TDB_REPLACE); - } - - talloc_free(msg); - - return ret; -} - -static int ltdb_index_add0(struct ldb_module *module, const char *dn, - struct ldb_message_element *elements, int num_el) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - int ret; - unsigned int i, j; - - if (dn[0] == '@') { - return 0; - } - - if (ltdb->cache->indexlist->num_elements == 0) { - /* no indexed fields */ - return 0; - } - - for (i = 0; i < num_el; i++) { - ret = ldb_msg_find_idx(ltdb->cache->indexlist, elements[i].name, - NULL, LTDB_IDXATTR); - if (ret == -1) { - continue; - } - for (j = 0; j < elements[i].num_values; j++) { - ret = ltdb_index_add1(module, dn, &elements[i], j); - if (ret == -1) { - return -1; - } - } - } - - return 0; -} - -/* - add the index entries for a new record - return -1 on failure -*/ -int ltdb_index_add(struct ldb_module *module, const struct ldb_message *msg) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - char *dn; - int ret; - - dn = ldb_dn_linearize(ltdb, msg->dn); - if (dn == NULL) { - return -1; - } - - ret = ltdb_index_add0(module, dn, msg->elements, msg->num_elements); - - talloc_free(dn); - - return ret; -} - - -/* - delete an index entry for one message element -*/ -int ltdb_index_del_value(struct ldb_module *module, const char *dn, - struct ldb_message_element *el, int v_idx) -{ - struct ldb_context *ldb = module->ldb; - struct ldb_message *msg; - struct ldb_dn *dn_key; - int ret, i; - unsigned int j; - - if (dn[0] == '@') { - return 0; - } - - dn_key = ldb_dn_key(ldb, el->name, &el->values[v_idx]); - if (!dn_key) { - return -1; - } - - msg = talloc(dn_key, struct ldb_message); - if (msg == NULL) { - talloc_free(dn_key); - return -1; - } - - ret = ltdb_search_dn1(module, dn_key, msg); - if (ret == -1) { - talloc_free(dn_key); - return -1; - } - - if (ret == 0) { - /* it wasn't indexed. Did we have an earlier error? If we did then - its gone now */ - talloc_free(dn_key); - return 0; - } - - i = ldb_msg_find_idx(msg, dn, &j, LTDB_IDX); - if (i == -1) { - ldb_debug(ldb, LDB_DEBUG_ERROR, - "ERROR: dn %s not found in %s\n", dn, - ldb_dn_linearize(dn_key, dn_key)); - /* it ain't there. hmmm */ - talloc_free(dn_key); - return 0; - } - - if (j != msg->elements[i].num_values - 1) { - memmove(&msg->elements[i].values[j], - &msg->elements[i].values[j+1], - (msg->elements[i].num_values-(j+1)) * - sizeof(msg->elements[i].values[0])); - } - msg->elements[i].num_values--; - - if (msg->elements[i].num_values == 0) { - ret = ltdb_delete_noindex(module, dn_key); - } else { - ret = ltdb_store(module, msg, TDB_REPLACE); - } - - talloc_free(dn_key); - - return ret; -} - -/* - delete the index entries for a record - return -1 on failure -*/ -int ltdb_index_del(struct ldb_module *module, const struct ldb_message *msg) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - int ret; - char *dn; - unsigned int i, j; - - /* find the list of indexed fields */ - if (ltdb->cache->indexlist->num_elements == 0) { - /* no indexed fields */ - return 0; - } - - if (ldb_dn_is_special(msg->dn)) { - return 0; - } - - dn = ldb_dn_linearize(ltdb, msg->dn); - if (dn == NULL) { - return -1; - } - - for (i = 0; i < msg->num_elements; i++) { - ret = ldb_msg_find_idx(ltdb->cache->indexlist, msg->elements[i].name, - NULL, LTDB_IDXATTR); - if (ret == -1) { - continue; - } - for (j = 0; j < msg->elements[i].num_values; j++) { - ret = ltdb_index_del_value(module, dn, &msg->elements[i], j); - if (ret == -1) { - talloc_free(dn); - return -1; - } - } - } - - talloc_free(dn); - return 0; -} - - -/* - traversal function that deletes all @INDEX records -*/ -static int delete_index(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data, void *state) -{ - const char *dn = "DN=" LTDB_INDEX ":"; - if (strncmp((char *)key.dptr, dn, strlen(dn)) == 0) { - return tdb_delete(tdb, key); - } - return 0; -} - -/* - traversal function that adds @INDEX records during a re index -*/ -static int re_index(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data, void *state) -{ - struct ldb_module *module = (struct ldb_module *)state; - struct ldb_message *msg; - char *dn = NULL; - int ret; - TDB_DATA key2; - - if (strncmp((char *)key.dptr, "DN=@", 4) == 0 || - strncmp((char *)key.dptr, "DN=", 3) != 0) { - return 0; - } - - msg = talloc(module, struct ldb_message); - if (msg == NULL) { - return -1; - } - - ret = ltdb_unpack_data(module, &data, msg); - if (ret != 0) { - talloc_free(msg); - return -1; - } - - /* check if the DN key has changed, perhaps due to the - case insensitivity of an element changing */ - key2 = ltdb_key(module, msg->dn); - if (key2.dptr == NULL) { - /* probably a corrupt record ... darn */ - ldb_debug(module->ldb, LDB_DEBUG_ERROR, "Invalid DN in re_index: %s\n", - ldb_dn_linearize(msg, msg->dn)); - talloc_free(msg); - return 0; - } - if (strcmp((char *)key2.dptr, (char *)key.dptr) != 0) { - tdb_delete(tdb, key); - tdb_store(tdb, key2, data, 0); - } - talloc_free(key2.dptr); - - if (msg->dn == NULL) { - dn = (char *)key.dptr + 3; - } else { - if (!(dn = ldb_dn_linearize(msg->dn, msg->dn))) { - talloc_free(msg); - return -1; - } - } - - ret = ltdb_index_add0(module, dn, msg->elements, msg->num_elements); - - talloc_free(msg); - - return ret; -} - -/* - force a complete reindex of the database -*/ -int ltdb_reindex(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - int ret; - - if (ltdb_cache_reload(module) != 0) { - return -1; - } - - /* first traverse the database deleting any @INDEX records */ - ret = tdb_traverse(ltdb->tdb, delete_index, NULL); - if (ret == -1) { - return -1; - } - - /* now traverse adding any indexes for normal LDB records */ - ret = tdb_traverse(ltdb->tdb, re_index, module); - if (ret == -1) { - return -1; - } - - return 0; -} diff --git a/source3/lib/ldb/ldb_tdb/ldb_pack.c b/source3/lib/ldb/ldb_tdb/ldb_pack.c deleted file mode 100644 index 3f3d1ccca7..0000000000 --- a/source3/lib/ldb/ldb_tdb/ldb_pack.c +++ /dev/null @@ -1,293 +0,0 @@ -/* - ldb database library - - Copyright (C) Andrew Tridgell 2004 - - ** NOTE! The following LGPL license applies to the ldb - ** library. This does NOT imply that all of Samba is released - ** under the LGPL - - 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, - 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/>. -*/ - -/* - * Name: ldb - * - * Component: ldb pack/unpack - * - * Description: pack/unpack routines for ldb messages as key/value blobs - * - * Author: Andrew Tridgell - */ - -#include "includes.h" -#include "ldb/include/includes.h" - -#include "ldb/ldb_tdb/ldb_tdb.h" - -/* change this if the data format ever changes */ -#define LTDB_PACKING_FORMAT 0x26011967 - -/* old packing formats */ -#define LTDB_PACKING_FORMAT_NODN 0x26011966 - -/* use a portable integer format */ -static void put_uint32(uint8_t *p, int ofs, unsigned int val) -{ - p += ofs; - p[0] = val&0xFF; - p[1] = (val>>8) & 0xFF; - p[2] = (val>>16) & 0xFF; - p[3] = (val>>24) & 0xFF; -} - -static unsigned int pull_uint32(uint8_t *p, int ofs) -{ - p += ofs; - return p[0] | (p[1]<<8) | (p[2]<<16) | (p[3]<<24); -} - -static int attribute_storable_values(const struct ldb_message_element *el) -{ - if (el->num_values == 0) return 0; - - if (ldb_attr_cmp(el->name, "dn") == 0) return 0; - - if (ldb_attr_cmp(el->name, "distinguishedName") == 0) return 0; - - return el->num_values; -} - -/* - pack a ldb message into a linear buffer in a TDB_DATA - - note that this routine avoids saving elements with zero values, - as these are equivalent to having no element - - caller frees the data buffer after use -*/ -int ltdb_pack_data(struct ldb_module *module, - const struct ldb_message *message, - struct TDB_DATA *data) -{ - struct ldb_context *ldb = module->ldb; - unsigned int i, j, real_elements=0; - size_t size; - char *dn; - uint8_t *p; - size_t len; - - dn = ldb_dn_linearize(ldb, message->dn); - if (dn == NULL) { - errno = ENOMEM; - return -1; - } - - /* work out how big it needs to be */ - size = 8; - - size += 1 + strlen(dn); - - for (i=0;i<message->num_elements;i++) { - if (attribute_storable_values(&message->elements[i]) == 0) { - continue; - } - - real_elements++; - - size += 1 + strlen(message->elements[i].name) + 4; - for (j=0;j<message->elements[i].num_values;j++) { - size += 4 + message->elements[i].values[j].length + 1; - } - } - - /* allocate it */ - data->dptr = talloc_array(ldb, uint8_t, size); - if (!data->dptr) { - talloc_free(dn); - errno = ENOMEM; - return -1; - } - data->dsize = size; - - p = (uint8_t *)data->dptr; - put_uint32(p, 0, LTDB_PACKING_FORMAT); - put_uint32(p, 4, real_elements); - p += 8; - - /* the dn needs to be packed so we can be case preserving - while hashing on a case folded dn */ - len = strlen(dn); - memcpy(p, dn, len+1); - p += len + 1; - - for (i=0;i<message->num_elements;i++) { - if (attribute_storable_values(&message->elements[i]) == 0) { - continue; - } - len = strlen(message->elements[i].name); - memcpy(p, message->elements[i].name, len+1); - p += len + 1; - put_uint32(p, 0, message->elements[i].num_values); - p += 4; - for (j=0;j<message->elements[i].num_values;j++) { - put_uint32(p, 0, message->elements[i].values[j].length); - memcpy(p+4, message->elements[i].values[j].data, - message->elements[i].values[j].length); - p[4+message->elements[i].values[j].length] = 0; - p += 4 + message->elements[i].values[j].length + 1; - } - } - - talloc_free(dn); - return 0; -} - -/* - unpack a ldb message from a linear buffer in TDB_DATA - - Free with ltdb_unpack_data_free() -*/ -int ltdb_unpack_data(struct ldb_module *module, - const struct TDB_DATA *data, - struct ldb_message *message) -{ - struct ldb_context *ldb = module->ldb; - uint8_t *p; - unsigned int remaining; - unsigned int i, j; - unsigned format; - size_t len; - - message->elements = NULL; - - p = (uint8_t *)data->dptr; - if (data->dsize < 8) { - errno = EIO; - goto failed; - } - - format = pull_uint32(p, 0); - message->num_elements = pull_uint32(p, 4); - p += 8; - - remaining = data->dsize - 8; - - switch (format) { - case LTDB_PACKING_FORMAT_NODN: - message->dn = NULL; - break; - - case LTDB_PACKING_FORMAT: - len = strnlen((char *)p, remaining); - if (len == remaining) { - errno = EIO; - goto failed; - } - message->dn = ldb_dn_explode(message, (char *)p); - if (message->dn == NULL) { - errno = ENOMEM; - goto failed; - } - remaining -= len + 1; - p += len + 1; - break; - - default: - errno = EIO; - goto failed; - } - - if (message->num_elements == 0) { - message->elements = NULL; - return 0; - } - - if (message->num_elements > remaining / 6) { - errno = EIO; - goto failed; - } - - message->elements = talloc_array(message, struct ldb_message_element, message->num_elements); - if (!message->elements) { - errno = ENOMEM; - goto failed; - } - - memset(message->elements, 0, - message->num_elements * sizeof(struct ldb_message_element)); - - for (i=0;i<message->num_elements;i++) { - if (remaining < 10) { - errno = EIO; - goto failed; - } - len = strnlen((char *)p, remaining-6); - if (len == remaining-6) { - errno = EIO; - goto failed; - } - message->elements[i].flags = 0; - 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); - message->elements[i].values = NULL; - if (message->elements[i].num_values != 0) { - message->elements[i].values = talloc_array(message->elements, - struct ldb_val, - message->elements[i].num_values); - if (!message->elements[i].values) { - errno = ENOMEM; - goto failed; - } - } - p += 4; - remaining -= 4; - for (j=0;j<message->elements[i].num_values;j++) { - len = pull_uint32(p, 0); - if (len > remaining-5) { - errno = EIO; - goto failed; - } - - message->elements[i].values[j].length = len; - message->elements[i].values[j].data = (uint8_t *)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; - } - } - - if (remaining != 0) { - ldb_debug(ldb, LDB_DEBUG_ERROR, - "Error: %d bytes unread in ltdb_unpack_data\n", remaining); - } - - return 0; - -failed: - talloc_free(message->elements); - return -1; -} diff --git a/source3/lib/ldb/ldb_tdb/ldb_search.c b/source3/lib/ldb/ldb_tdb/ldb_search.c deleted file mode 100644 index 9ef8eb9295..0000000000 --- a/source3/lib/ldb/ldb_tdb/ldb_search.c +++ /dev/null @@ -1,527 +0,0 @@ -/* - ldb database library - - Copyright (C) Andrew Tridgell 2004 - - ** NOTE! The following LGPL license applies to the ldb - ** library. This does NOT imply that all of Samba is released - ** under the LGPL - - 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, - 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/>. -*/ - -/* - * Name: ldb - * - * Component: ldb search functions - * - * Description: functions to search ldb+tdb databases - * - * Author: Andrew Tridgell - */ - -#include "includes.h" -#include "ldb/include/includes.h" - -#include "ldb/ldb_tdb/ldb_tdb.h" - -/* - add one element to a message -*/ -static int msg_add_element(struct ldb_message *ret, - const struct ldb_message_element *el, - int check_duplicates) -{ - unsigned int i; - struct ldb_message_element *e2, *elnew; - - if (check_duplicates && ldb_msg_find_element(ret, el->name)) { - /* its already there */ - return 0; - } - - e2 = talloc_realloc(ret, ret->elements, struct ldb_message_element, ret->num_elements+1); - if (!e2) { - return -1; - } - ret->elements = e2; - - elnew = &e2[ret->num_elements]; - - elnew->name = talloc_strdup(ret->elements, el->name); - if (!elnew->name) { - return -1; - } - - if (el->num_values) { - elnew->values = talloc_array(ret->elements, struct ldb_val, el->num_values); - if (!elnew->values) { - return -1; - } - } else { - elnew->values = NULL; - } - - for (i=0;i<el->num_values;i++) { - elnew->values[i] = ldb_val_dup(elnew->values, &el->values[i]); - if (elnew->values[i].length != el->values[i].length) { - return -1; - } - } - - elnew->num_values = el->num_values; - - ret->num_elements++; - - return 0; -} - -/* - add the special distinguishedName element -*/ -static int msg_add_distinguished_name(struct ldb_message *msg) -{ - struct ldb_message_element el; - struct ldb_val val; - int ret; - - el.flags = 0; - el.name = "distinguishedName"; - el.num_values = 1; - el.values = &val; - val.data = (uint8_t *)ldb_dn_linearize(msg, msg->dn); - val.length = strlen((char *)val.data); - - ret = msg_add_element(msg, &el, 1); - return ret; -} - -/* - add all elements from one message into another - */ -static int msg_add_all_elements(struct ldb_module *module, struct ldb_message *ret, - const struct ldb_message *msg) -{ - struct ldb_context *ldb = module->ldb; - unsigned int i; - int check_duplicates = (ret->num_elements != 0); - - if (msg_add_distinguished_name(ret) != 0) { - return -1; - } - - for (i=0;i<msg->num_elements;i++) { - const struct ldb_attrib_handler *h; - h = ldb_attrib_handler(ldb, msg->elements[i].name); - if (h->flags & LDB_ATTR_FLAG_HIDDEN) { - continue; - } - if (msg_add_element(ret, &msg->elements[i], - check_duplicates) != 0) { - return -1; - } - } - - return 0; -} - - -/* - pull the specified list of attributes from a message - */ -static struct ldb_message *ltdb_pull_attrs(struct ldb_module *module, - TALLOC_CTX *mem_ctx, - const struct ldb_message *msg, - const char * const *attrs) -{ - struct ldb_message *ret; - int i; - - ret = talloc(mem_ctx, struct ldb_message); - if (!ret) { - return NULL; - } - - ret->dn = ldb_dn_copy(ret, msg->dn); - if (!ret->dn) { - talloc_free(ret); - return NULL; - } - - ret->num_elements = 0; - ret->elements = NULL; - - if (!attrs) { - if (msg_add_all_elements(module, ret, msg) != 0) { - talloc_free(ret); - return NULL; - } - return ret; - } - - for (i=0;attrs[i];i++) { - struct ldb_message_element *el; - - if (strcmp(attrs[i], "*") == 0) { - if (msg_add_all_elements(module, ret, msg) != 0) { - talloc_free(ret); - return NULL; - } - continue; - } - - if (ldb_attr_cmp(attrs[i], "distinguishedName") == 0) { - if (msg_add_distinguished_name(ret) != 0) { - return NULL; - } - continue; - } - - el = ldb_msg_find_element(msg, attrs[i]); - if (!el) { - continue; - } - if (msg_add_element(ret, el, 1) != 0) { - talloc_free(ret); - return NULL; - } - } - - return ret; -} - - -/* - search the database for a single simple dn, returning all attributes - in a single message - - return 1 on success, 0 on record-not-found and -1 on error -*/ -int ltdb_search_dn1(struct ldb_module *module, const struct ldb_dn *dn, struct ldb_message *msg) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - int ret; - TDB_DATA tdb_key, tdb_data; - - memset(msg, 0, sizeof(*msg)); - - /* form the key */ - tdb_key = ltdb_key(module, dn); - if (!tdb_key.dptr) { - return -1; - } - - tdb_data = tdb_fetch(ltdb->tdb, tdb_key); - talloc_free(tdb_key.dptr); - if (!tdb_data.dptr) { - return 0; - } - - msg->num_elements = 0; - msg->elements = NULL; - - ret = ltdb_unpack_data(module, &tdb_data, msg); - free(tdb_data.dptr); - if (ret == -1) { - return -1; - } - - if (!msg->dn) { - msg->dn = ldb_dn_copy(msg, dn); - } - if (!msg->dn) { - return -1; - } - - return 1; -} - -/* - lock the database for read - use by ltdb_search -*/ -static int ltdb_lock_read(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - return tdb_lockall_read(ltdb->tdb); -} - -/* - unlock the database after a ltdb_lock_read() -*/ -static int ltdb_unlock_read(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - (struct ltdb_private *)module->private_data; - return tdb_unlockall_read(ltdb->tdb); -} - -/* - add a set of attributes from a record to a set of results - return 0 on success, -1 on failure -*/ -int ltdb_add_attr_results(struct ldb_module *module, - TALLOC_CTX *mem_ctx, - struct ldb_message *msg, - const char * const attrs[], - unsigned int *count, - struct ldb_message ***res) -{ - struct ldb_message *msg2; - struct ldb_message **res2; - - /* pull the attributes that the user wants */ - msg2 = ltdb_pull_attrs(module, mem_ctx, msg, attrs); - if (!msg2) { - return -1; - } - - /* add to the results list */ - res2 = talloc_realloc(mem_ctx, *res, struct ldb_message *, (*count)+2); - if (!res2) { - talloc_free(msg2); - return -1; - } - - (*res) = res2; - - (*res)[*count] = talloc_move(*res, &msg2); - (*res)[(*count)+1] = NULL; - (*count)++; - - return 0; -} - - - -/* - 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 ldb_handle *handle = talloc_get_type(state, struct ldb_handle); - struct ltdb_context *ac = talloc_get_type(handle->private_data, struct ltdb_context); - struct ldb_reply *ares = NULL; - int ret; - - if (key.dsize < 4 || - strncmp((char *)key.dptr, "DN=", 3) != 0) { - return 0; - } - - ares = talloc_zero(ac, struct ldb_reply); - 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(ac->module, &data, ares->message); - if (ret == -1) { - talloc_free(ares); - return -1; - } - - 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(ac->module->ldb, ares->message, ac->tree, - ac->base, ac->scope)) { - talloc_free(ares); - return 0; - } - - /* 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 -1; - } - - 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) { - /* don't try to free ares here, the callback is in charge of that */ - return -1; - } - - return 0; -} - - -/* - search the database with a LDAP-like expression. - this is the "full search" non-indexed variant -*/ -static int ltdb_search_full(struct ldb_handle *handle) -{ - struct ltdb_context *ac = talloc_get_type(handle->private_data, struct ltdb_context); - struct ltdb_private *ltdb = talloc_get_type(ac->module->private_data, struct ltdb_private); - int ret; - - ret = tdb_traverse_read(ltdb->tdb, search_func, handle); - - if (ret == -1) { - handle->status = LDB_ERR_OPERATIONS_ERROR; - } - - handle->state = LDB_ASYNC_DONE; - return LDB_SUCCESS; -} - -/* - search the database with a LDAP-like expression. - choses a search method -*/ -int ltdb_search(struct ldb_module *module, struct ldb_request *req) -{ - struct ltdb_private *ltdb = talloc_get_type(module->private_data, struct ltdb_private); - struct ltdb_context *ltdb_ac; - struct ldb_reply *ares; - int ret; - - if ((req->op.search.base == NULL || ldb_dn_get_comp_num(req->op.search.base) == 0) && - (req->op.search.scope == LDB_SCOPE_BASE || req->op.search.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 (req->op.search.tree == NULL) { - ltdb_unlock_read(module); - return LDB_ERR_OPERATIONS_ERROR; - } - - req->handle = init_ltdb_handle(ltdb, module, req); - if (req->handle == NULL) { - ltdb_unlock_read(module); - return LDB_ERR_OPERATIONS_ERROR; - } - ltdb_ac = talloc_get_type(req->handle->private_data, struct ltdb_context); - - ltdb_ac->tree = req->op.search.tree; - ltdb_ac->scope = req->op.search.scope; - ltdb_ac->base = req->op.search.base; - ltdb_ac->attrs = req->op.search.attrs; - - ret = ltdb_search_indexed(req->handle); - if (ret == -1) { - ret = ltdb_search_full(req->handle); - } - if (ret != LDB_SUCCESS) { - ldb_set_errstring(module->ldb, "Indexed and full searches both failed!\n"); - req->handle->state = LDB_ASYNC_DONE; - req->handle->status = ret; - } - - /* Finally send an LDB_REPLY_DONE packet when searching is finished */ - - ares = talloc_zero(req, struct ldb_reply); - if (!ares) { - ltdb_unlock_read(module); - return LDB_ERR_OPERATIONS_ERROR; - } - - req->handle->state = LDB_ASYNC_DONE; - ares->type = LDB_REPLY_DONE; - - ret = req->callback(module->ldb, req->context, ares); - req->handle->status = ret; - - ltdb_unlock_read(module); - - return LDB_SUCCESS; -} - diff --git a/source3/lib/ldb/ldb_tdb/ldb_tdb.c b/source3/lib/ldb/ldb_tdb/ldb_tdb.c deleted file mode 100644 index e3bc069d9d..0000000000 --- a/source3/lib/ldb/ldb_tdb/ldb_tdb.c +++ /dev/null @@ -1,1087 +0,0 @@ -/* - ldb database library - - Copyright (C) Andrew Tridgell 2004 - Copyright (C) Stefan Metzmacher 2004 - Copyright (C) Simo Sorce 2006 - - - ** NOTE! The following LGPL license applies to the ldb - ** library. This does NOT imply that all of Samba is released - ** under the LGPL - - 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, - 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/>. -*/ - -/* - * Name: ldb_tdb - * - * Component: ldb tdb backend - * - * Description: core functions for tdb backend - * - * Author: Andrew Tridgell - * Author: Stefan Metzmacher - * - * Modifications: - * - * - description: make the module use asyncronous calls - * date: Feb 2006 - * Author: Simo Sorce - */ - -#include "includes.h" -#include "ldb/include/includes.h" - -#include "ldb/ldb_tdb/ldb_tdb.h" - -int ltdb_check_special_dn(struct ldb_module *module, const struct ldb_message *msg); - -/* - map a tdb error code to a ldb error code -*/ -static int ltdb_err_map(enum TDB_ERROR tdb_code) -{ - switch (tdb_code) { - case TDB_SUCCESS: - return LDB_SUCCESS; - case TDB_ERR_CORRUPT: - case TDB_ERR_OOM: - case TDB_ERR_EINVAL: -#if HAVE_TDB_ERR_NESTING - case TDB_ERR_NESTING: -#endif - return LDB_ERR_OPERATIONS_ERROR; - case TDB_ERR_IO: - return LDB_ERR_PROTOCOL_ERROR; - case TDB_ERR_LOCK: - case TDB_ERR_NOLOCK: - return LDB_ERR_BUSY; - case TDB_ERR_LOCK_TIMEOUT: - return LDB_ERR_TIME_LIMIT_EXCEEDED; - case TDB_ERR_EXISTS: - return LDB_ERR_ENTRY_ALREADY_EXISTS; - case TDB_ERR_NOEXIST: - return LDB_ERR_NO_SUCH_OBJECT; - case TDB_ERR_RDONLY: - return LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS; - } - return LDB_ERR_OTHER; -} - - -struct ldb_handle *init_ltdb_handle(struct ltdb_private *ltdb, struct ldb_module *module, - struct ldb_request *req) -{ - struct ltdb_context *ac; - struct ldb_handle *h; - - h = talloc_zero(req, struct ldb_handle); - if (h == NULL) { - ldb_set_errstring(module->ldb, "Out of Memory"); - return NULL; - } - - h->module = module; - - ac = talloc_zero(h, struct ltdb_context); - if (ac == NULL) { - ldb_set_errstring(module->ldb, "Out of Memory"); - talloc_free(h); - return NULL; - } - - h->private_data = (void *)ac; - - h->state = LDB_ASYNC_INIT; - h->status = LDB_SUCCESS; - - ac->module = module; - ac->context = req->context; - ac->callback = req->callback; - - return h; -} - -/* - form a TDB_DATA for a record key - caller frees - - note that the key for a record can depend on whether the - dn refers to a case sensitive index record or not -*/ -struct TDB_DATA ltdb_key(struct ldb_module *module, const struct ldb_dn *dn) -{ - struct ldb_context *ldb = module->ldb; - TDB_DATA key; - char *key_str = NULL; - char *dn_folded = NULL; - - /* - most DNs are case insensitive. The exception is index DNs for - case sensitive attributes - - there are 3 cases dealt with in this code: - - 1) if the dn doesn't start with @ then uppercase the attribute - names and the attributes values of case insensitive attributes - 2) if the dn starts with @ then leave it alone - the indexing code handles - the rest - */ - - dn_folded = ldb_dn_linearize_casefold(ldb, ldb, dn); - if (!dn_folded) { - goto failed; - } - - key_str = talloc_asprintf(ldb, "DN=%s", dn_folded); - - talloc_free(dn_folded); - - if (!key_str) { - goto failed; - } - - key.dptr = (uint8_t *)key_str; - key.dsize = strlen(key_str) + 1; - - return key; - -failed: - errno = ENOMEM; - key.dptr = NULL; - key.dsize = 0; - return key; -} - -/* - check special dn's have valid attributes - currently only @ATTRIBUTES is checked -*/ -int ltdb_check_special_dn(struct ldb_module *module, const struct ldb_message *msg) -{ - int i, j; - - if (! ldb_dn_is_special(msg->dn) || - ! ldb_dn_check_special(msg->dn, LTDB_ATTRIBUTES)) { - return 0; - } - - /* we have @ATTRIBUTES, let's check attributes are fine */ - /* should we check that we deny multivalued attributes ? */ - for (i = 0; i < msg->num_elements; i++) { - for (j = 0; j < msg->elements[i].num_values; j++) { - if (ltdb_check_at_attributes_values(&msg->elements[i].values[j]) != 0) { - ldb_set_errstring(module->ldb, "Invalid attribute value in an @ATTRIBUTES entry"); - return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX; - } - } - } - - return 0; -} - - -/* - we've made a modification to a dn - possibly reindex and - update sequence number -*/ -static int ltdb_modified(struct ldb_module *module, const struct ldb_dn *dn) -{ - int ret = 0; - - if (ldb_dn_is_special(dn) && - (ldb_dn_check_special(dn, LTDB_INDEXLIST) || - ldb_dn_check_special(dn, LTDB_ATTRIBUTES)) ) { - ret = ltdb_reindex(module); - } - - if (ret == 0 && - !(ldb_dn_is_special(dn) && - ldb_dn_check_special(dn, LTDB_BASEINFO)) ) { - ret = ltdb_increase_sequence_number(module); - } - - return ret; -} - -/* - store a record into the db -*/ -int ltdb_store(struct ldb_module *module, const struct ldb_message *msg, int flgs) -{ - struct ltdb_private *ltdb = - talloc_get_type(module->private_data, struct ltdb_private); - TDB_DATA tdb_key, tdb_data; - int ret; - - tdb_key = ltdb_key(module, msg->dn); - if (!tdb_key.dptr) { - return LDB_ERR_OTHER; - } - - ret = ltdb_pack_data(module, msg, &tdb_data); - if (ret == -1) { - talloc_free(tdb_key.dptr); - return LDB_ERR_OTHER; - } - - ret = tdb_store(ltdb->tdb, tdb_key, tdb_data, flgs); - if (ret == -1) { - ret = ltdb_err_map(tdb_error(ltdb->tdb)); - goto done; - } - - ret = ltdb_index_add(module, msg); - if (ret == -1) { - tdb_delete(ltdb->tdb, tdb_key); - } - -done: - talloc_free(tdb_key.dptr); - talloc_free(tdb_data.dptr); - - return ret; -} - - -static int ltdb_add_internal(struct ldb_module *module, const struct ldb_message *msg) -{ - int ret; - - ret = ltdb_check_special_dn(module, msg); - if (ret != LDB_SUCCESS) { - return ret; - } - - if (ltdb_cache_load(module) != 0) { - return LDB_ERR_OPERATIONS_ERROR; - } - - ret = ltdb_store(module, msg, TDB_INSERT); - - if (ret == LDB_ERR_ENTRY_ALREADY_EXISTS) { - char *dn; - - dn = ldb_dn_linearize(module, msg->dn); - if (!dn) { - return ret; - } - ldb_asprintf_errstring(module->ldb, "Entry %s already exists", dn); - talloc_free(dn); - return ret; - } - - if (ret == LDB_SUCCESS) { - ret = ltdb_modified(module, msg->dn); - if (ret != LDB_SUCCESS) { - return LDB_ERR_OPERATIONS_ERROR; - } - } - - return ret; -} - -/* - add a record to the database -*/ -static int ltdb_add(struct ldb_module *module, struct ldb_request *req) -{ - struct ltdb_private *ltdb = talloc_get_type(module->private_data, struct ltdb_private); - struct ltdb_context *ltdb_ac; - int tret, ret = LDB_SUCCESS; - - 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; - } - } - - req->handle = init_ltdb_handle(ltdb, module, req); - if (req->handle == NULL) { - return LDB_ERR_OPERATIONS_ERROR; - } - ltdb_ac = talloc_get_type(req->handle->private_data, struct ltdb_context); - - tret = ltdb_add_internal(module, req->op.add.message); - if (tret != LDB_SUCCESS) { - req->handle->status = tret; - goto done; - } - - if (ltdb_ac->callback) { - ret = ltdb_ac->callback(module->ldb, ltdb_ac->context, NULL); - } -done: - req->handle->state = LDB_ASYNC_DONE; - return ret; -} - -/* - delete a record from the database, not updating indexes (used for deleting - index records) -*/ -int ltdb_delete_noindex(struct ldb_module *module, const struct ldb_dn *dn) -{ - struct ltdb_private *ltdb = - talloc_get_type(module->private_data, struct ltdb_private); - TDB_DATA tdb_key; - int ret; - - tdb_key = ltdb_key(module, dn); - if (!tdb_key.dptr) { - return LDB_ERR_OTHER; - } - - ret = tdb_delete(ltdb->tdb, tdb_key); - talloc_free(tdb_key.dptr); - - if (ret != 0) { - ret = ltdb_err_map(tdb_error(ltdb->tdb)); - } - - return ret; -} - -static int ltdb_delete_internal(struct ldb_module *module, const struct ldb_dn *dn) -{ - struct ldb_message *msg; - int ret; - - msg = talloc(module, 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, dn, msg); - if (ret != 1) { - /* not finding the old record is an error */ - talloc_free(msg); - return LDB_ERR_NO_SUCH_OBJECT; - } - - ret = ltdb_delete_noindex(module, dn); - if (ret != LDB_SUCCESS) { - talloc_free(msg); - return LDB_ERR_NO_SUCH_OBJECT; - } - - /* remove any indexed attributes */ - ret = ltdb_index_del(module, msg); - if (ret != LDB_SUCCESS) { - talloc_free(msg); - return LDB_ERR_OPERATIONS_ERROR; - } - - ret = ltdb_modified(module, dn); - if (ret != LDB_SUCCESS) { - talloc_free(msg); - return LDB_ERR_OPERATIONS_ERROR; - } - - talloc_free(msg); - return LDB_SUCCESS; -} - -/* - delete a record from the database -*/ -static int ltdb_delete(struct ldb_module *module, struct ldb_request *req) -{ - struct ltdb_private *ltdb = talloc_get_type(module->private_data, struct ltdb_private); - struct ltdb_context *ltdb_ac; - int tret, ret = LDB_SUCCESS; - - 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; - } - } - - req->handle = NULL; - - if (ltdb_cache_load(module) != 0) { - return LDB_ERR_OPERATIONS_ERROR; - } - - req->handle = init_ltdb_handle(ltdb, module, req); - if (req->handle == NULL) { - return LDB_ERR_OPERATIONS_ERROR; - } - ltdb_ac = talloc_get_type(req->handle->private_data, struct ltdb_context); - - tret = ltdb_delete_internal(module, req->op.del.dn); - if (tret != LDB_SUCCESS) { - req->handle->status = tret; - goto done; - } - - if (ltdb_ac->callback) { - ret = ltdb_ac->callback(module->ldb, ltdb_ac->context, NULL); - } -done: - req->handle->state = LDB_ASYNC_DONE; - return ret; -} - -/* - find an element by attribute name. At the moment this does a linear search, it should - be re-coded to use a binary search once all places that modify records guarantee - sorted order - - return the index of the first matching element if found, otherwise -1 -*/ -static int find_element(const struct ldb_message *msg, const char *name) -{ - unsigned int i; - for (i=0;i<msg->num_elements;i++) { - if (ldb_attr_cmp(msg->elements[i].name, name) == 0) { - return i; - } - } - return -1; -} - - -/* - add an element to an existing record. Assumes a elements array that we - can call re-alloc on, and assumed that we can re-use the data pointers from the - passed in additional values. Use with care! - - returns 0 on success, -1 on failure (and sets errno) -*/ -static int msg_add_element(struct ldb_context *ldb, - struct ldb_message *msg, struct ldb_message_element *el) -{ - struct ldb_message_element *e2; - unsigned int i; - - e2 = talloc_realloc(msg, msg->elements, struct ldb_message_element, - msg->num_elements+1); - if (!e2) { - errno = ENOMEM; - return -1; - } - - msg->elements = e2; - - e2 = &msg->elements[msg->num_elements]; - - e2->name = el->name; - e2->flags = el->flags; - e2->values = NULL; - if (el->num_values != 0) { - e2->values = talloc_array(msg->elements, struct ldb_val, el->num_values); - if (!e2->values) { - errno = ENOMEM; - return -1; - } - } - for (i=0;i<el->num_values;i++) { - e2->values[i] = el->values[i]; - } - e2->num_values = el->num_values; - - msg->num_elements++; - - return 0; -} - -/* - delete all elements having a specified attribute name -*/ -static int msg_delete_attribute(struct ldb_module *module, - struct ldb_context *ldb, - struct ldb_message *msg, const char *name) -{ - char *dn; - unsigned int i, j; - - dn = ldb_dn_linearize(ldb, msg->dn); - if (dn == NULL) { - return -1; - } - - for (i=0;i<msg->num_elements;i++) { - if (ldb_attr_cmp(msg->elements[i].name, name) == 0) { - for (j=0;j<msg->elements[i].num_values;j++) { - ltdb_index_del_value(module, dn, &msg->elements[i], j); - } - talloc_free(msg->elements[i].values); - if (msg->num_elements > (i+1)) { - memmove(&msg->elements[i], - &msg->elements[i+1], - sizeof(struct ldb_message_element)* - (msg->num_elements - (i+1))); - } - msg->num_elements--; - i--; - msg->elements = talloc_realloc(msg, msg->elements, - struct ldb_message_element, - msg->num_elements); - } - } - - talloc_free(dn); - return 0; -} - -/* - delete all elements matching an attribute name/value - - return 0 on success, -1 on failure -*/ -static int msg_delete_element(struct ldb_module *module, - struct ldb_message *msg, - const char *name, - const struct ldb_val *val) -{ - struct ldb_context *ldb = module->ldb; - unsigned int i; - int found; - struct ldb_message_element *el; - const struct ldb_attrib_handler *h; - - found = find_element(msg, name); - if (found == -1) { - return -1; - } - - el = &msg->elements[found]; - - h = ldb_attrib_handler(ldb, el->name); - - for (i=0;i<el->num_values;i++) { - if (h->comparison_fn(ldb, ldb, &el->values[i], val) == 0) { - if (i<el->num_values-1) { - memmove(&el->values[i], &el->values[i+1], - sizeof(el->values[i])*(el->num_values-(i+1))); - } - el->num_values--; - if (el->num_values == 0) { - return msg_delete_attribute(module, ldb, msg, name); - } - return 0; - } - } - - return -1; -} - - -/* - modify a record - internal interface - - yuck - this is O(n^2). Luckily n is usually small so we probably - get away with it, but if we ever have really large attribute lists - then we'll need to look at this again -*/ -int ltdb_modify_internal(struct ldb_module *module, const struct ldb_message *msg) -{ - struct ldb_context *ldb = module->ldb; - struct ltdb_private *ltdb = - talloc_get_type(module->private_data, struct ltdb_private); - TDB_DATA tdb_key, tdb_data; - struct ldb_message *msg2; - unsigned i, j; - int ret; - - tdb_key = ltdb_key(module, msg->dn); - if (!tdb_key.dptr) { - return LDB_ERR_OTHER; - } - - tdb_data = tdb_fetch(ltdb->tdb, tdb_key); - if (!tdb_data.dptr) { - talloc_free(tdb_key.dptr); - return ltdb_err_map(tdb_error(ltdb->tdb)); - } - - msg2 = talloc(tdb_key.dptr, struct ldb_message); - if (msg2 == NULL) { - talloc_free(tdb_key.dptr); - return LDB_ERR_OTHER; - } - - ret = ltdb_unpack_data(module, &tdb_data, msg2); - if (ret == -1) { - ret = LDB_ERR_OTHER; - goto failed; - } - - if (!msg2->dn) { - msg2->dn = msg->dn; - } - - for (i=0;i<msg->num_elements;i++) { - struct ldb_message_element *el = &msg->elements[i]; - struct ldb_message_element *el2; - struct ldb_val *vals; - char *dn; - - switch (msg->elements[i].flags & LDB_FLAG_MOD_MASK) { - - case LDB_FLAG_MOD_ADD: - /* add this element to the message. fail if it - already exists */ - ret = find_element(msg2, el->name); - - if (ret == -1) { - if (msg_add_element(ldb, msg2, el) != 0) { - ret = LDB_ERR_OTHER; - goto failed; - } - continue; - } - - el2 = &msg2->elements[ret]; - - /* An attribute with this name already exists, add all - * values if they don't already exist. */ - - for (j=0;j<el->num_values;j++) { - if (ldb_msg_find_val(el2, &el->values[j])) { - ldb_set_errstring(module->ldb, "Type or value exists"); - ret = LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS; - goto failed; - } - } - - vals = talloc_realloc(msg2->elements, el2->values, struct ldb_val, - el2->num_values + el->num_values); - - if (vals == NULL) { - ret = LDB_ERR_OTHER; - goto failed; - } - - for (j=0;j<el->num_values;j++) { - vals[el2->num_values + j] = - ldb_val_dup(vals, &el->values[j]); - } - - el2->values = vals; - el2->num_values += el->num_values; - - break; - - case LDB_FLAG_MOD_REPLACE: - /* replace all elements of this attribute name with the elements - listed. The attribute not existing is not an error */ - msg_delete_attribute(module, ldb, msg2, msg->elements[i].name); - - /* add the replacement element, if not empty */ - if (msg->elements[i].num_values != 0 && - msg_add_element(ldb, msg2, &msg->elements[i]) != 0) { - ret = LDB_ERR_OTHER; - goto failed; - } - break; - - case LDB_FLAG_MOD_DELETE: - - dn = ldb_dn_linearize(msg2, msg->dn); - if (dn == NULL) { - ret = LDB_ERR_OTHER; - goto failed; - } - - /* we could be being asked to delete all - values or just some values */ - if (msg->elements[i].num_values == 0) { - if (msg_delete_attribute(module, ldb, msg2, - msg->elements[i].name) != 0) { - ldb_asprintf_errstring(module->ldb, "No such attribute: %s for delete on %s", msg->elements[i].name, dn); - ret = LDB_ERR_NO_SUCH_ATTRIBUTE; - goto failed; - } - break; - } - for (j=0;j<msg->elements[i].num_values;j++) { - if (msg_delete_element(module, - msg2, - msg->elements[i].name, - &msg->elements[i].values[j]) != 0) { - ldb_asprintf_errstring(module->ldb, "No matching attribute value when deleting attribute: %s on %s", msg->elements[i].name, dn); - ret = LDB_ERR_NO_SUCH_ATTRIBUTE; - goto failed; - } - if (ltdb_index_del_value(module, dn, &msg->elements[i], j) != 0) { - ret = LDB_ERR_OTHER; - goto failed; - } - } - break; - default: - ldb_asprintf_errstring(module->ldb, "Invalid ldb_modify flags on %s: 0x%x", - msg->elements[i].name, - msg->elements[i].flags & LDB_FLAG_MOD_MASK); - ret = LDB_ERR_PROTOCOL_ERROR; - goto failed; - } - } - - /* we've made all the mods - save the modified record back into the database */ - ret = ltdb_store(module, msg2, TDB_MODIFY); - if (ret != LDB_SUCCESS) { - goto failed; - } - - if (ltdb_modified(module, msg->dn) != LDB_SUCCESS) { - ret = LDB_ERR_OPERATIONS_ERROR; - goto failed; - } - - talloc_free(tdb_key.dptr); - free(tdb_data.dptr); - return ret; - -failed: - talloc_free(tdb_key.dptr); - free(tdb_data.dptr); - return ret; -} - -/* - modify a record -*/ -static int ltdb_modify(struct ldb_module *module, struct ldb_request *req) -{ - struct ltdb_private *ltdb = talloc_get_type(module->private_data, struct ltdb_private); - struct ltdb_context *ltdb_ac; - int tret, ret = LDB_SUCCESS; - - 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; - } - } - - req->handle = NULL; - - req->handle = init_ltdb_handle(ltdb, module, req); - if (req->handle == NULL) { - return LDB_ERR_OPERATIONS_ERROR; - } - ltdb_ac = talloc_get_type(req->handle->private_data, struct ltdb_context); - - tret = ltdb_check_special_dn(module, req->op.mod.message); - if (tret != LDB_SUCCESS) { - req->handle->status = tret; - goto done; - } - - if (ltdb_cache_load(module) != 0) { - ret = LDB_ERR_OPERATIONS_ERROR; - goto done; - } - - tret = ltdb_modify_internal(module, req->op.mod.message); - if (tret != LDB_SUCCESS) { - req->handle->status = tret; - goto done; - } - - if (ltdb_ac->callback) { - ret = ltdb_ac->callback(module->ldb, ltdb_ac->context, NULL); - } -done: - req->handle->state = LDB_ASYNC_DONE; - return ret; -} - -/* - rename a record -*/ -static int ltdb_rename(struct ldb_module *module, struct ldb_request *req) -{ - struct ltdb_private *ltdb = talloc_get_type(module->private_data, struct ltdb_private); - struct ltdb_context *ltdb_ac; - struct ldb_message *msg; - int tret, ret = LDB_SUCCESS; - - 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; - } - } - - req->handle = NULL; - - if (ltdb_cache_load(module) != 0) { - return LDB_ERR_OPERATIONS_ERROR; - } - - req->handle = init_ltdb_handle(ltdb, module, req); - if (req->handle == NULL) { - return LDB_ERR_OPERATIONS_ERROR; - } - ltdb_ac = talloc_get_type(req->handle->private_data, struct ltdb_context); - - msg = talloc(ltdb_ac, struct ldb_message); - if (msg == NULL) { - ret = LDB_ERR_OPERATIONS_ERROR; - goto done; - } - - /* in case any attribute of the message was indexed, we need - to fetch the old record */ - tret = ltdb_search_dn1(module, req->op.rename.olddn, msg); - if (tret != 1) { - /* not finding the old record is an error */ - req->handle->status = LDB_ERR_NO_SUCH_OBJECT; - goto done; - } - - msg->dn = ldb_dn_copy(msg, req->op.rename.newdn); - if (!msg->dn) { - ret = LDB_ERR_OPERATIONS_ERROR; - goto done; - } - - tret = ltdb_add_internal(module, msg); - if (tret != LDB_SUCCESS) { - ret = LDB_ERR_OPERATIONS_ERROR; - goto done; - } - - tret = ltdb_delete_internal(module, req->op.rename.olddn); - if (tret != LDB_SUCCESS) { - ltdb_delete_internal(module, req->op.rename.newdn); - ret = LDB_ERR_OPERATIONS_ERROR; - goto done; - } - - if (ltdb_ac->callback) { - ret = ltdb_ac->callback(module->ldb, ltdb_ac->context, NULL); - } -done: - req->handle->state = LDB_ASYNC_DONE; - return ret; -} - -static int ltdb_start_trans(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - talloc_get_type(module->private_data, struct ltdb_private); - - if (tdb_transaction_start(ltdb->tdb) != 0) { - return ltdb_err_map(tdb_error(ltdb->tdb)); - } - - return LDB_SUCCESS; -} - -static int ltdb_end_trans(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - talloc_get_type(module->private_data, struct ltdb_private); - - if (tdb_transaction_commit(ltdb->tdb) != 0) { - return ltdb_err_map(tdb_error(ltdb->tdb)); - } - - return LDB_SUCCESS; -} - -static int ltdb_del_trans(struct ldb_module *module) -{ - struct ltdb_private *ltdb = - talloc_get_type(module->private_data, struct ltdb_private); - - if (tdb_transaction_cancel(ltdb->tdb) != 0) { - return ltdb_err_map(tdb_error(ltdb->tdb)); - } - - return LDB_SUCCESS; -} - -static int ltdb_wait(struct ldb_handle *handle, enum ldb_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; - } - } - - /* search, add, modify, delete, rename are handled by their own, no other op supported */ - return LDB_ERR_OPERATIONS_ERROR; -} - -/* - return sequenceNumber from @BASEINFO -*/ -static int ltdb_sequence_number(struct ldb_module *module, struct ldb_request *req) -{ - TALLOC_CTX *tmp_ctx = talloc_new(req); - struct ldb_message *msg = NULL; - struct ldb_dn *dn = ldb_dn_explode(tmp_ctx, LTDB_BASEINFO); - int tret; - - if (tmp_ctx == NULL) { - talloc_free(tmp_ctx); - return LDB_ERR_OPERATIONS_ERROR; - } - - msg = talloc(tmp_ctx, struct ldb_message); - if (msg == NULL) { - talloc_free(tmp_ctx); - return LDB_ERR_OPERATIONS_ERROR; - } - - req->op.seq_num.flags = 0; - - tret = ltdb_search_dn1(module, dn, msg); - if (tret != 1) { - talloc_free(tmp_ctx); - req->op.seq_num.seq_num = 0; - /* zero is as good as anything when we don't know */ - return LDB_SUCCESS; - } - - switch (req->op.seq_num.type) { - case LDB_SEQ_HIGHEST_SEQ: - req->op.seq_num.seq_num = ldb_msg_find_attr_as_uint64(msg, LTDB_SEQUENCE_NUMBER, 0); - break; - case LDB_SEQ_NEXT: - req->op.seq_num.seq_num = ldb_msg_find_attr_as_uint64(msg, LTDB_SEQUENCE_NUMBER, 0); - req->op.seq_num.seq_num++; - break; - case LDB_SEQ_HIGHEST_TIMESTAMP: - { - const char *date = ldb_msg_find_attr_as_string(msg, LTDB_MOD_TIMESTAMP, NULL); - if (date) { - req->op.seq_num.seq_num = ldb_string_to_time(date); - } else { - req->op.seq_num.seq_num = 0; - /* zero is as good as anything when we don't know */ - } - break; - } - } - talloc_free(tmp_ctx); - return LDB_SUCCESS; -} - -static const struct ldb_module_ops ltdb_ops = { - .name = "tdb", - .search = ltdb_search, - .add = ltdb_add, - .modify = ltdb_modify, - .del = ltdb_delete, - .rename = ltdb_rename, - .request = ltdb_request, - .start_transaction = ltdb_start_trans, - .end_transaction = ltdb_end_trans, - .del_transaction = ltdb_del_trans, - .wait = ltdb_wait, - .sequence_number = ltdb_sequence_number -}; - -/* - connect to the database -*/ -static int ltdb_connect(struct ldb_context *ldb, const char *url, - unsigned int flags, const char *options[], - struct ldb_module **module) -{ - const char *path; - int tdb_flags, open_flags; - struct ltdb_private *ltdb; - - /* parse the url */ - if (strchr(url, ':')) { - if (strncmp(url, "tdb://", 6) != 0) { - ldb_debug(ldb, LDB_DEBUG_ERROR, "Invalid tdb URL '%s'", url); - return -1; - } - path = url+6; - } else { - path = url; - } - - tdb_flags = TDB_DEFAULT | TDB_SEQNUM; - - /* check for the 'nosync' option */ - if (flags & LDB_FLG_NOSYNC) { - tdb_flags |= TDB_NOSYNC; - } - - /* and nommap option */ - if (flags & LDB_FLG_NOMMAP) { - tdb_flags |= TDB_NOMMAP; - } - - if (flags & LDB_FLG_RDONLY) { - open_flags = O_RDONLY; - } else { - open_flags = O_CREAT | O_RDWR; - } - - ltdb = talloc_zero(ldb, struct ltdb_private); - if (!ltdb) { - ldb_oom(ldb); - return -1; - } - - /* note that we use quite a large default hash size */ - ltdb->tdb = ltdb_wrap_open(ltdb, path, 10000, - tdb_flags, open_flags, - ldb->create_perms, ldb); - if (!ltdb->tdb) { - ldb_debug(ldb, LDB_DEBUG_ERROR, "Unable to open tdb '%s'\n", path); - talloc_free(ltdb); - return -1; - } - - ltdb->sequence_number = 0; - - *module = talloc(ldb, struct ldb_module); - if ((*module) == NULL) { - ldb_oom(ldb); - talloc_free(ltdb); - return -1; - } - talloc_set_name_const(*module, "ldb_tdb backend"); - (*module)->ldb = ldb; - (*module)->prev = (*module)->next = NULL; - (*module)->private_data = ltdb; - (*module)->ops = <db_ops; - - if (ltdb_cache_load(*module) != 0) { - talloc_free(*module); - talloc_free(ltdb); - return -1; - } - - return 0; -} - -int ldb_tdb_init(void) -{ - return ldb_register_backend("tdb", ltdb_connect); -} diff --git a/source3/lib/ldb/ldb_tdb/ldb_tdb.h b/source3/lib/ldb/ldb_tdb/ldb_tdb.h deleted file mode 100644 index caf8ba8d0c..0000000000 --- a/source3/lib/ldb/ldb_tdb/ldb_tdb.h +++ /dev/null @@ -1,123 +0,0 @@ - -#ifdef _SAMBA_BUILD_ -#include "system/filesys.h" -#endif - -#include "tdb.h" - -/* this private structure is used by the ltdb backend in the - ldb_context */ -struct ltdb_private { - TDB_CONTEXT *tdb; - unsigned int connect_flags; - - /* a double is used for portability and ease of string - handling. It has plenty of digits of precision */ - unsigned long long sequence_number; - - /* the low level tdb seqnum - used to avoid loading BASEINFO when - possible */ - int tdb_seqnum; - - struct ltdb_cache { - struct ldb_message *indexlist; - struct ldb_message *attributes; - struct ldb_message *subclasses; - - struct { - char *name; - int flags; - } last_attribute; - } *cache; -}; - -/* - the async local context - holds also internal search state during a full db search -*/ -struct ltdb_context { - struct ldb_module *module; - - /* search stuff */ - const struct ldb_parse_tree *tree; - const struct ldb_dn *base; - enum ldb_scope scope; - const char * const *attrs; - - /* async stuff */ - void *context; - int (*callback)(struct ldb_context *, void *, struct ldb_reply *); -}; - -/* special record types */ -#define LTDB_INDEX "@INDEX" -#define LTDB_INDEXLIST "@INDEXLIST" -#define LTDB_IDX "@IDX" -#define LTDB_IDXATTR "@IDXATTR" -#define LTDB_BASEINFO "@BASEINFO" -#define LTDB_ATTRIBUTES "@ATTRIBUTES" -#define LTDB_SUBCLASSES "@SUBCLASSES" - -/* special attribute types */ -#define LTDB_SEQUENCE_NUMBER "sequenceNumber" -#define LTDB_MOD_TIMESTAMP "whenChanged" -#define LTDB_OBJECTCLASS "objectClass" - -/* The following definitions come from lib/ldb/ldb_tdb/ldb_cache.c */ - -int ltdb_cache_reload(struct ldb_module *module); -int ltdb_cache_load(struct ldb_module *module); -int ltdb_increase_sequence_number(struct ldb_module *module); -int ltdb_check_at_attributes_values(const struct ldb_val *value); - -/* The following definitions come from lib/ldb/ldb_tdb/ldb_index.c */ - -struct ldb_parse_tree; - -int ltdb_search_indexed(struct ldb_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); - -/* The following definitions come from lib/ldb/ldb_tdb/ldb_pack.c */ - -int ltdb_pack_data(struct ldb_module *module, - const struct ldb_message *message, - struct TDB_DATA *data); -void ltdb_unpack_data_free(struct ldb_module *module, - struct ldb_message *message); -int ltdb_unpack_data(struct ldb_module *module, - const struct TDB_DATA *data, - struct ldb_message *message); - -/* The following definitions come from lib/ldb/ldb_tdb/ldb_search.c */ - -int ltdb_has_wildcard(struct ldb_module *module, const char *attr_name, - const struct ldb_val *val); -void ltdb_search_dn1_free(struct ldb_module *module, struct ldb_message *msg); -int ltdb_search_dn1(struct ldb_module *module, const struct ldb_dn *dn, struct ldb_message *msg); -int ltdb_add_attr_results(struct ldb_module *module, - TALLOC_CTX *mem_ctx, - struct ldb_message *msg, - 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(struct ldb_module *module, struct ldb_request *req); - -/* The following definitions come from lib/ldb/ldb_tdb/ldb_tdb.c */ -struct ldb_handle *init_ltdb_handle(struct ltdb_private *ltdb, struct ldb_module *module, - struct ldb_request *req); -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); -int ltdb_modify_internal(struct ldb_module *module, const struct ldb_message *msg); - -int ltdb_index_del_value(struct ldb_module *module, const char *dn, - struct ldb_message_element *el, int v_idx); - -struct tdb_context *ltdb_wrap_open(TALLOC_CTX *mem_ctx, - const char *path, int hash_size, int tdb_flags, - int open_flags, mode_t mode, - struct ldb_context *ldb); - diff --git a/source3/lib/ldb/ldb_tdb/ldb_tdb_wrap.c b/source3/lib/ldb/ldb_tdb/ldb_tdb_wrap.c deleted file mode 100644 index 64463f7c91..0000000000 --- a/source3/lib/ldb/ldb_tdb/ldb_tdb_wrap.c +++ /dev/null @@ -1,141 +0,0 @@ -/* - ldb database library - - 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 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, - 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/>. -*/ - -#include "includes.h" -#include "ldb/include/includes.h" - -#include "ldb/ldb_tdb/ldb_tdb.h" - -/* - the purpose of this code is to work around the braindead posix locking - rules, to allow us to have a ldb open more than once while allowing - locking to work -*/ - -struct ltdb_wrap { - struct ltdb_wrap *next, *prev; - struct tdb_context *tdb; - dev_t device; - ino_t inode; -}; - -static struct ltdb_wrap *tdb_list; - -/* destroy the last connection to a tdb */ -static int ltdb_wrap_destructor(struct ltdb_wrap *w) -{ - tdb_close(w->tdb); - DLIST_REMOVE(tdb_list, w); - return 0; -} - -static void ltdb_log_fn(struct tdb_context *tdb, enum tdb_debug_level level, const char *fmt, ...) PRINTF_ATTRIBUTE(3, 4); -static void ltdb_log_fn(struct tdb_context *tdb, enum tdb_debug_level level, const char *fmt, ...) -{ - va_list ap; - const char *name = tdb_name(tdb); - struct ldb_context *ldb = talloc_get_type(tdb_get_logging_private(tdb), struct ldb_context); - enum ldb_debug_level ldb_level; - char *message; - va_start(ap, fmt); - message = talloc_vasprintf(ldb, fmt, ap); - va_end(ap); - - switch (level) { - case TDB_DEBUG_FATAL: - ldb_level = LDB_DEBUG_FATAL; - break; - case TDB_DEBUG_ERROR: - ldb_level = LDB_DEBUG_ERROR; - break; - case TDB_DEBUG_WARNING: - ldb_level = LDB_DEBUG_WARNING; - break; - case TDB_DEBUG_TRACE: - ldb_level = LDB_DEBUG_TRACE; - break; - default: - ldb_level = LDB_DEBUG_FATAL; - } - - ldb_debug(ldb, ldb_level, "ltdb: tdb(%s): %s", name, message); - talloc_free(message); -} - -/* - wrapped connection to a tdb database. The caller should _not_ free - this as it is not a talloc structure (as tdb does not use talloc - yet). It will auto-close when the caller frees the mem_ctx that is - passed to this call - */ -struct tdb_context *ltdb_wrap_open(TALLOC_CTX *mem_ctx, - const char *path, int hash_size, - int tdb_flags, - int open_flags, mode_t mode, - struct ldb_context *ldb) -{ - struct ltdb_wrap *w; - struct stat st; - struct tdb_logging_context log_ctx; - - log_ctx.log_fn = ltdb_log_fn; - log_ctx.log_private = ldb; - - if (stat(path, &st) == 0) { - for (w=tdb_list;w;w=w->next) { - if (st.st_dev == w->device && st.st_ino == w->inode) { - if (!talloc_reference(mem_ctx, w)) { - return NULL; - } - return w->tdb; - } - } - } - - w = talloc(mem_ctx, struct ltdb_wrap); - if (w == NULL) { - return NULL; - } - - w->tdb = tdb_open_ex(path, hash_size, tdb_flags, open_flags, mode, &log_ctx, NULL); - if (w->tdb == NULL) { - talloc_free(w); - return NULL; - } - - if (fstat(tdb_fd(w->tdb), &st) != 0) { - tdb_close(w->tdb); - talloc_free(w); - return NULL; - } - - w->device = st.st_dev; - w->inode = st.st_ino; - - talloc_set_destructor(w, ltdb_wrap_destructor); - - DLIST_ADD(tdb_list, w); - - return w->tdb; -} - |