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authorSimo Sorce <ssorce@redhat.com>2009-02-25 16:43:57 -0500
committerSimo Sorce <ssorce@redhat.com>2009-02-26 09:13:32 -0500
commit77454c07ba109a3ea6af0da86ba954b28b1fd02f (patch)
tree5e5be00f9b77c42e697617acb9fd695f7c6a0e58 /ldb/ldb_tdb/ldb_cache.c
parentc9f6d2795fde2f9bf80277d425df2b44bc860226 (diff)
downloadsssd-77454c07ba109a3ea6af0da86ba954b28b1fd02f.tar.gz
sssd-77454c07ba109a3ea6af0da86ba954b28b1fd02f.tar.xz
sssd-77454c07ba109a3ea6af0da86ba954b28b1fd02f.zip
Remove our copies of the samba libraries.
Packages are already available in debian unstable and will soon land in Fedora. See BUILD.TXT for details. We still keep libreplace as we still use its configure macros, until we find time to extract only waht we need and have our own macros.
Diffstat (limited to 'ldb/ldb_tdb/ldb_cache.c')
-rw-r--r--ldb/ldb_tdb/ldb_cache.c458
1 files changed, 0 insertions, 458 deletions
diff --git a/ldb/ldb_tdb/ldb_cache.c b/ldb/ldb_tdb/ldb_cache.c
deleted file mode 100644
index 2576e2c7b..000000000
--- a/ldb/ldb_tdb/ldb_cache.c
+++ /dev/null
@@ -1,458 +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 "ldb_includes.h"
-
-#include "ldb_tdb.h"
-
-#define LTDB_FLAG_CASE_INSENSITIVE (1<<0)
-#define LTDB_FLAG_INTEGER (1<<1)
-#define LTDB_FLAG_HIDDEN (1<<2)
-
-/* 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_schema_attribute_remove(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, r;
-
- dn = ldb_dn_new(module, module->ldb, LTDB_ATTRIBUTES);
- if (dn == NULL) goto failed;
-
- r = ltdb_search_dn1(module, dn, msg);
- talloc_free(dn);
- if (r != LDB_SUCCESS && r != LDB_ERR_NO_SUCH_OBJECT) {
- goto failed;
- }
- if (r == LDB_ERR_NO_SUCH_OBJECT) {
- return 0;
- }
- /* 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_schema_syntax *s;
-
- 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;
- }
-
- s = ldb_standard_syntax_by_name(module->ldb, syntax);
- if (s == NULL) {
- ldb_debug(module->ldb, LDB_DEBUG_ERROR,
- "Invalid attribute syntax '%s' for '%s' in @ATTRIBUTES\n",
- syntax, msg->elements[i].name);
- goto failed;
- }
-
- flags |= LDB_ATTR_FLAG_ALLOCATED;
- if (ldb_schema_attribute_add_with_syntax(module->ldb, msg->elements[i].name, flags, s) != 0) {
- goto failed;
- }
- }
-
- return 0;
-failed:
- return -1;
-}
-
-
-/*
- 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 = &el;
- msg->dn = ldb_dn_new(msg, module->ldb, 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 LDB_ERR_OPERATIONS_ERROR;
-}
-
-/*
- 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_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, *options_dn = NULL;
- struct ldb_dn *indexlist_dn = NULL;
- uint64_t seq;
- struct ldb_message *baseinfo = NULL, *options = NULL;
- int r;
-
- /* 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->attributes = talloc_zero(ltdb->cache, struct ldb_message);
- if (ltdb->cache->indexlist == NULL ||
- ltdb->cache->attributes == NULL) {
- goto failed;
- }
- }
-
- baseinfo = talloc(ltdb->cache, struct ldb_message);
- if (baseinfo == NULL) goto failed;
-
- baseinfo_dn = ldb_dn_new(module, module->ldb, LTDB_BASEINFO);
- if (baseinfo_dn == NULL) goto failed;
-
- r= ltdb_search_dn1(module, baseinfo_dn, baseinfo);
- if (r != LDB_SUCCESS && r != LDB_ERR_NO_SUCH_OBJECT) {
- goto failed;
- }
-
- /* possibly initialise the baseinfo */
- if (r == LDB_ERR_NO_SUCH_OBJECT) {
- if (ltdb_baseinfo_init(module) != LDB_SUCCESS) {
- goto failed;
- }
- if (ltdb_search_dn1(module, baseinfo_dn, baseinfo) != LDB_SUCCESS) {
- 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;
-
- /* Read an interpret database options */
- options = talloc(ltdb->cache, struct ldb_message);
- if (options == NULL) goto failed;
-
- options_dn = ldb_dn_new(options, module->ldb, LTDB_OPTIONS);
- if (options_dn == NULL) goto failed;
-
- r= ltdb_search_dn1(module, options_dn, options);
- if (r != LDB_SUCCESS && r != LDB_ERR_NO_SUCH_OBJECT) {
- goto failed;
- }
-
- /* set flag for checking base DN on searches */
- if (r == LDB_SUCCESS) {
- ltdb->check_base = ldb_msg_find_attr_as_bool(options, LTDB_CHECK_BASE, false);
- } else {
- ltdb->check_base = false;
- }
-
- talloc_free(ltdb->cache->last_attribute.name);
- memset(&ltdb->cache->last_attribute, 0, sizeof(ltdb->cache->last_attribute));
-
- ltdb_attributes_unload(module);
-
- talloc_free(ltdb->cache->indexlist);
-
- ltdb->cache->indexlist = talloc_zero(ltdb->cache, struct ldb_message);
- ltdb->cache->attributes = talloc_zero(ltdb->cache, struct ldb_message);
- if (ltdb->cache->indexlist == NULL ||
- ltdb->cache->attributes == NULL) {
- goto failed;
- }
-
- indexlist_dn = ldb_dn_new(module, module->ldb, LTDB_INDEXLIST);
- if (indexlist_dn == NULL) goto failed;
-
- r = ltdb_search_dn1(module, indexlist_dn, ltdb->cache->indexlist);
- if (r != LDB_SUCCESS && r != LDB_ERR_NO_SUCH_OBJECT) {
- goto failed;
- }
-
- if (ltdb_attributes_load(module) == -1) {
- goto failed;
- }
-
-done:
- talloc_free(options);
- talloc_free(baseinfo);
- talloc_free(baseinfo_dn);
- talloc_free(indexlist_dn);
- return 0;
-
-failed:
- talloc_free(options);
- 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 LDB_ERR_OPERATIONS_ERROR;
- }
-
- s = talloc_asprintf(msg, "%llu", ltdb->sequence_number+1);
- if (!s) {
- errno = ENOMEM;
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- msg->num_elements = ARRAY_SIZE(el);
- msg->elements = el;
- msg->dn = ldb_dn_new(msg, module->ldb, LTDB_BASEINFO);
- if (msg->dn == NULL) {
- talloc_free(msg);
- errno = ENOMEM;
- return LDB_ERR_OPERATIONS_ERROR;
- }
- el[0].name = talloc_strdup(msg, LTDB_SEQUENCE_NUMBER);
- if (el[0].name == NULL) {
- talloc_free(msg);
- errno = ENOMEM;
- return LDB_ERR_OPERATIONS_ERROR;
- }
- 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 LDB_ERR_OPERATIONS_ERROR;
- }
- 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 LDB_ERR_OPERATIONS_ERROR;
- }
-
- val_time.data = (uint8_t *)s;
- val_time.length = strlen(s);
-
- ret = ltdb_modify_internal(module, msg);
-
- talloc_free(msg);
-
- if (ret == LDB_SUCCESS) {
- ltdb->sequence_number += 1;
- }
-
- /* updating the tdb_seqnum here avoids us reloading the cache
- records due to our own modification */
- ltdb->tdb_seqnum = tdb_get_seqnum(ltdb->tdb);
-
- 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;
-}
-