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authorAndrew Bartlett <abartlet@samba.org>2009-10-10 09:10:03 +1100
committerAndrew Bartlett <abartlet@samba.org>2009-10-12 16:51:02 +1100
commitc9f70fc3c7a6a44696a64ca40eca6e1995db35b9 (patch)
treea6d80b211801e63dafc65198d4cd5af0fcac014a /source4
parent1e5562ff0410c1cedb2279eb7e0362f8d3867972 (diff)
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s4:dsdb Search for the schema with dsdb_module_search(), in schema_fsmo
This avoids using an ldb_search(), which would run from the top of the module stack. This will help us load the schema before the partitions are initialised. Andrew Bartlett
Diffstat (limited to 'source4')
-rw-r--r--source4/dsdb/samdb/ldb_modules/schema_fsmo.c113
-rw-r--r--source4/dsdb/schema/schema_init.c111
2 files changed, 102 insertions, 122 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/schema_fsmo.c b/source4/dsdb/samdb/ldb_modules/schema_fsmo.c
index c482ab57df..2b6606c147 100644
--- a/source4/dsdb/samdb/ldb_modules/schema_fsmo.c
+++ b/source4/dsdb/samdb/ldb_modules/schema_fsmo.c
@@ -5,6 +5,7 @@
checkings, it also loads the dsdb_schema.
Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -28,6 +29,7 @@
#include "librpc/gen_ndr/ndr_drsuapi.h"
#include "librpc/gen_ndr/ndr_drsblobs.h"
#include "param/param.h"
+#include "dsdb/samdb/ldb_modules/util.h"
static int generate_objectClasses(struct ldb_context *ldb, struct ldb_message *msg,
const struct dsdb_schema *schema);
@@ -90,13 +92,107 @@ struct schema_fsmo_search_data {
const struct dsdb_schema *schema;
};
+/*
+ Given an LDB module (pointing at the schema DB), and the DN, set the populated schema
+*/
+
+static int dsdb_schema_from_schema_dn(TALLOC_CTX *mem_ctx, struct ldb_module *module,
+ struct smb_iconv_convenience *iconv_convenience,
+ struct ldb_dn *schema_dn,
+ struct dsdb_schema **schema)
+{
+ TALLOC_CTX *tmp_ctx;
+ char *error_string;
+ int ret;
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ struct ldb_result *schema_res;
+ struct ldb_result *a_res;
+ struct ldb_result *c_res;
+ static const char *schema_attrs[] = {
+ "prefixMap",
+ "schemaInfo",
+ "fSMORoleOwner",
+ NULL
+ };
+ unsigned flags;
+
+ tmp_ctx = talloc_new(mem_ctx);
+ if (!tmp_ctx) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* we don't want to trace the schema load */
+ flags = ldb_get_flags(ldb);
+ ldb_set_flags(ldb, flags & ~LDB_FLG_ENABLE_TRACING);
+
+ /*
+ * setup the prefix mappings and schema info
+ */
+ ret = dsdb_module_search_dn(module, tmp_ctx, &schema_res,
+ schema_dn, schema_attrs);
+ if (ret == LDB_ERR_NO_SUCH_OBJECT) {
+ goto failed;
+ } else if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb,
+ "dsdb_schema: failed to search the schema head: %s",
+ ldb_errstring(ldb));
+ goto failed;
+ }
+
+ /*
+ * load the attribute definitions
+ */
+ ret = dsdb_module_search(module, tmp_ctx, &a_res,
+ schema_dn, LDB_SCOPE_ONELEVEL, NULL,
+ "(objectClass=attributeSchema)");
+ if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb,
+ "dsdb_schema: failed to search attributeSchema objects: %s",
+ ldb_errstring(ldb));
+ goto failed;
+ }
+
+ /*
+ * load the objectClass definitions
+ */
+ ret = dsdb_module_search(module, tmp_ctx, &c_res,
+ schema_dn, LDB_SCOPE_ONELEVEL, NULL,
+ "(objectClass=classSchema)");
+ if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb,
+ "dsdb_schema: failed to search attributeSchema objects: %s",
+ ldb_errstring(ldb));
+ goto failed;
+ }
+
+ ret = dsdb_schema_from_ldb_results(tmp_ctx, ldb,
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
+ schema_res, a_res, c_res, schema, &error_string);
+ if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb,
+ "dsdb_schema load failed: %s",
+ error_string);
+ goto failed;
+ }
+ talloc_steal(mem_ctx, *schema);
+
+failed:
+ if (flags & LDB_FLG_ENABLE_TRACING) {
+ flags = ldb_get_flags(ldb);
+ ldb_set_flags(ldb, flags | LDB_FLG_ENABLE_TRACING);
+ }
+ talloc_free(tmp_ctx);
+ return ret;
+}
+
+
static int schema_fsmo_init(struct ldb_module *module)
{
struct ldb_context *ldb;
TALLOC_CTX *mem_ctx;
struct ldb_dn *schema_dn;
struct dsdb_schema *schema;
- char *error_string = NULL;
int ret;
struct schema_fsmo_private_data *data;
@@ -134,9 +230,9 @@ static int schema_fsmo_init(struct ldb_module *module)
return LDB_ERR_OPERATIONS_ERROR;
}
- ret = dsdb_schema_from_schema_dn(mem_ctx, ldb,
+ ret = dsdb_schema_from_schema_dn(mem_ctx, module,
lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
- schema_dn, &schema, &error_string);
+ schema_dn, &schema);
if (ret == LDB_ERR_NO_SUCH_OBJECT) {
ldb_reset_err_string(ldb);
@@ -147,9 +243,6 @@ static int schema_fsmo_init(struct ldb_module *module)
}
if (ret != LDB_SUCCESS) {
- ldb_asprintf_errstring(ldb,
- "schema_fsmo_init: dsdb_schema load failed: %s",
- error_string);
talloc_free(mem_ctx);
return ret;
}
@@ -246,7 +339,6 @@ static int schema_fsmo_extended(struct ldb_module *module, struct ldb_request *r
struct ldb_context *ldb;
struct ldb_dn *schema_dn;
struct dsdb_schema *schema;
- char *error_string = NULL;
int ret;
TALLOC_CTX *mem_ctx;
@@ -270,9 +362,9 @@ static int schema_fsmo_extended(struct ldb_module *module, struct ldb_request *r
return LDB_ERR_OPERATIONS_ERROR;
}
- ret = dsdb_schema_from_schema_dn(mem_ctx, ldb,
+ ret = dsdb_schema_from_schema_dn(mem_ctx, module,
lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
- schema_dn, &schema, &error_string);
+ schema_dn, &schema);
if (ret == LDB_ERR_NO_SUCH_OBJECT) {
ldb_reset_err_string(ldb);
@@ -283,9 +375,6 @@ static int schema_fsmo_extended(struct ldb_module *module, struct ldb_request *r
}
if (ret != LDB_SUCCESS) {
- ldb_asprintf_errstring(ldb,
- "schema_fsmo_extended: dsdb_schema load failed: %s",
- error_string);
talloc_free(mem_ctx);
return ldb_next_request(module, req);
}
diff --git a/source4/dsdb/schema/schema_init.c b/source4/dsdb/schema/schema_init.c
index b876ab09fc..74cf53d8f1 100644
--- a/source4/dsdb/schema/schema_init.c
+++ b/source4/dsdb/schema/schema_init.c
@@ -906,7 +906,7 @@ WERROR dsdb_class_from_ldb(const struct dsdb_schema *schema,
/*
Create a DSDB schema from the ldb results provided. This is called
directly when the schema is provisioned from an on-disk LDIF file, or
- from dsdb_schema_from_schema_dn below
+ from dsdb_schema_from_schema_dn in schema_fsmo
*/
int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
@@ -1013,115 +1013,6 @@ int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
return LDB_SUCCESS;
}
-/*
- Given an LDB, and the DN, return a populated schema
-*/
-
-int dsdb_schema_from_schema_dn(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
- struct smb_iconv_convenience *iconv_convenience,
- struct ldb_dn *schema_dn,
- struct dsdb_schema **schema,
- char **error_string_out)
-{
- TALLOC_CTX *tmp_ctx;
- char *error_string;
- int ret;
-
- struct ldb_result *schema_res;
- struct ldb_result *a_res;
- struct ldb_result *c_res;
- static const char *schema_attrs[] = {
- "prefixMap",
- "schemaInfo",
- "fSMORoleOwner",
- NULL
- };
- unsigned flags;
-
- tmp_ctx = talloc_new(mem_ctx);
- if (!tmp_ctx) {
- dsdb_oom(error_string_out, mem_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- /* we don't want to trace the schema load */
- flags = ldb_get_flags(ldb);
- ldb_set_flags(ldb, flags & ~LDB_FLG_ENABLE_TRACING);
-
- /*
- * setup the prefix mappings and schema info
- */
- ret = ldb_search(ldb, tmp_ctx, &schema_res,
- schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL);
- if (ret == LDB_ERR_NO_SUCH_OBJECT) {
- goto failed;
- } else if (ret != LDB_SUCCESS) {
- *error_string_out = talloc_asprintf(mem_ctx,
- "dsdb_schema: failed to search the schema head: %s",
- ldb_errstring(ldb));
- goto failed;
- }
- if (schema_res->count != 1) {
- *error_string_out = talloc_asprintf(mem_ctx,
- "dsdb_schema: [%u] schema heads found on a base search",
- schema_res->count);
- goto failed;
- }
-
- /*
- * load the attribute definitions
- */
- ret = ldb_search(ldb, tmp_ctx, &a_res,
- schema_dn, LDB_SCOPE_ONELEVEL, NULL,
- "(objectClass=attributeSchema)");
- if (ret != LDB_SUCCESS) {
- *error_string_out = talloc_asprintf(mem_ctx,
- "dsdb_schema: failed to search attributeSchema objects: %s",
- ldb_errstring(ldb));
- goto failed;
- }
-
- /*
- * load the objectClass definitions
- */
- ret = ldb_search(ldb, tmp_ctx, &c_res,
- schema_dn, LDB_SCOPE_ONELEVEL, NULL,
- "(objectClass=classSchema)");
- if (ret != LDB_SUCCESS) {
- *error_string_out = talloc_asprintf(mem_ctx,
- "dsdb_schema: failed to search attributeSchema objects: %s",
- ldb_errstring(ldb));
- goto failed;
- }
-
- ret = dsdb_schema_from_ldb_results(tmp_ctx, ldb,
- lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
- schema_res, a_res, c_res, schema, &error_string);
- if (ret != LDB_SUCCESS) {
- *error_string_out = talloc_asprintf(mem_ctx,
- "dsdb_schema load failed: %s",
- error_string);
- goto failed;
- }
- talloc_steal(mem_ctx, *schema);
- talloc_free(tmp_ctx);
-
- if (flags & LDB_FLG_ENABLE_TRACING) {
- flags = ldb_get_flags(ldb);
- ldb_set_flags(ldb, flags | LDB_FLG_ENABLE_TRACING);
- }
-
- return LDB_SUCCESS;
-
-failed:
- if (flags & LDB_FLG_ENABLE_TRACING) {
- flags = ldb_get_flags(ldb);
- ldb_set_flags(ldb, flags | LDB_FLG_ENABLE_TRACING);
- }
- talloc_free(tmp_ctx);
- return ret;
-}
-
static const struct {
const char *name;