diff options
Diffstat (limited to 'source4/dsdb/schema/schema_init.c')
| -rw-r--r-- | source4/dsdb/schema/schema_init.c | 1038 |
1 files changed, 1038 insertions, 0 deletions
diff --git a/source4/dsdb/schema/schema_init.c b/source4/dsdb/schema/schema_init.c new file mode 100644 index 0000000..c8197b8 --- /dev/null +++ b/source4/dsdb/schema/schema_init.c @@ -0,0 +1,1038 @@ +/* + Unix SMB/CIFS Implementation. + DSDB schema header + + Copyright (C) Stefan Metzmacher <metze@samba.org> 2006-2007 + Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006-2008 + + 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 + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. + +*/ + +#include "includes.h" +#include "dsdb/samdb/samdb.h" +#include "dsdb/common/util.h" +#include <ldb_errors.h> +#include "../lib/util/dlinklist.h" +#include "librpc/gen_ndr/ndr_misc.h" +#include "librpc/gen_ndr/ndr_drsuapi.h" +#include "librpc/gen_ndr/ndr_drsblobs.h" +#include "param/param.h" +#include <ldb_module.h> +#include "../lib/util/asn1.h" + +#undef strcasecmp + +struct dsdb_schema *dsdb_new_schema(TALLOC_CTX *mem_ctx) +{ + struct dsdb_schema *schema = talloc_zero(mem_ctx, struct dsdb_schema); + if (!schema) { + return NULL; + } + + return schema; +} + +struct dsdb_schema *dsdb_schema_copy_shallow(TALLOC_CTX *mem_ctx, + struct ldb_context *ldb, + const struct dsdb_schema *schema) +{ + int ret; + struct dsdb_class *cls; + struct dsdb_attribute *attr; + struct dsdb_schema *schema_copy; + + schema_copy = dsdb_new_schema(mem_ctx); + if (!schema_copy) { + return NULL; + } + + /* copy prexiMap & schemaInfo */ + schema_copy->prefixmap = dsdb_schema_pfm_copy_shallow(schema_copy, + schema->prefixmap); + if (!schema_copy->prefixmap) { + goto failed; + } + + schema_copy->schema_info = talloc(schema_copy, struct dsdb_schema_info); + if (!schema_copy->schema_info) { + goto failed; + } + *schema_copy->schema_info = *schema->schema_info; + + /* copy classes and attributes*/ + for (cls = schema->classes; cls; cls = cls->next) { + struct dsdb_class *class_copy = talloc_memdup(schema_copy, + cls, sizeof(*cls)); + if (!class_copy) { + goto failed; + } + DLIST_ADD(schema_copy->classes, class_copy); + } + schema_copy->num_classes = schema->num_classes; + + for (attr = schema->attributes; attr; attr = attr->next) { + struct dsdb_attribute *a_copy = talloc_memdup(schema_copy, + attr, sizeof(*attr)); + if (!a_copy) { + goto failed; + } + DLIST_ADD(schema_copy->attributes, a_copy); + } + schema_copy->num_attributes = schema->num_attributes; + + /* rebuild indexes */ + ret = dsdb_setup_sorted_accessors(ldb, schema_copy); + if (ret != LDB_SUCCESS) { + goto failed; + } + + /* leave reload_seq_number = 0 so it will be refresh ASAP */ + + return schema_copy; + +failed: + talloc_free(schema_copy); + return NULL; +} + + +WERROR dsdb_load_prefixmap_from_drsuapi(struct dsdb_schema *schema, + const struct drsuapi_DsReplicaOIDMapping_Ctr *ctr) +{ + WERROR werr; + struct dsdb_schema_info *schema_info = NULL; + struct dsdb_schema_prefixmap *pfm = NULL; + + werr = dsdb_schema_pfm_from_drsuapi_pfm(ctr, true, schema, &pfm, &schema_info); + W_ERROR_NOT_OK_RETURN(werr); + + /* set loaded prefixMap */ + talloc_free(schema->prefixmap); + schema->prefixmap = pfm; + + talloc_free(schema->schema_info); + schema->schema_info = schema_info; + + return WERR_OK; +} + +static WERROR _dsdb_prefixmap_from_ldb_val(const struct ldb_val *pfm_ldb_val, + TALLOC_CTX *mem_ctx, + struct dsdb_schema_prefixmap **_pfm) +{ + WERROR werr; + enum ndr_err_code ndr_err; + struct prefixMapBlob pfm_blob; + + TALLOC_CTX *temp_ctx = talloc_new(mem_ctx); + W_ERROR_HAVE_NO_MEMORY(temp_ctx); + + ndr_err = ndr_pull_struct_blob(pfm_ldb_val, temp_ctx, + &pfm_blob, + (ndr_pull_flags_fn_t)ndr_pull_prefixMapBlob); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err); + DEBUG(0,("_dsdb_prefixmap_from_ldb_val: Failed to parse prefixmap of length %u: %s\n", + (unsigned int)pfm_ldb_val->length, ndr_map_error2string(ndr_err))); + talloc_free(temp_ctx); + return ntstatus_to_werror(nt_status); + } + + if (pfm_blob.version != PREFIX_MAP_VERSION_DSDB) { + DEBUG(0,("_dsdb_prefixmap_from_ldb_val: pfm_blob->version %u incorrect\n", (unsigned int)pfm_blob.version)); + talloc_free(temp_ctx); + return WERR_VERSION_PARSE_ERROR; + } + + /* call the drsuapi version */ + werr = dsdb_schema_pfm_from_drsuapi_pfm(&pfm_blob.ctr.dsdb, false, mem_ctx, _pfm, NULL); + if (!W_ERROR_IS_OK(werr)) { + DEBUG(0, (__location__ " dsdb_schema_pfm_from_drsuapi_pfm failed: %s\n", win_errstr(werr))); + talloc_free(temp_ctx); + return werr; + } + + talloc_free(temp_ctx); + + return werr; +} + +WERROR dsdb_load_oid_mappings_ldb(struct dsdb_schema *schema, + const struct ldb_val *prefixMap, + const struct ldb_val *schemaInfo) +{ + WERROR werr; + struct dsdb_schema_info *schema_info = NULL; + struct dsdb_schema_prefixmap *pfm = NULL; + TALLOC_CTX *mem_ctx; + + /* verify schemaInfo blob is valid one */ + if (!dsdb_schema_info_blob_is_valid(schemaInfo)) { + DEBUG(0,(__location__": dsdb_schema_info_blob_is_valid() failed.\n")); + return WERR_INVALID_PARAMETER; + } + + mem_ctx = talloc_new(schema); + W_ERROR_HAVE_NO_MEMORY(mem_ctx); + + /* fetch prefixMap */ + werr = _dsdb_prefixmap_from_ldb_val(prefixMap, + mem_ctx, &pfm); + if (!W_ERROR_IS_OK(werr)) { + DEBUG(0, (__location__ " _dsdb_prefixmap_from_ldb_val failed: %s\n", win_errstr(werr))); + talloc_free(mem_ctx); + return werr; + } + + /* decode schema_info */ + werr = dsdb_schema_info_from_blob(schemaInfo, mem_ctx, &schema_info); + if (!W_ERROR_IS_OK(werr)) { + DEBUG(0, (__location__ " dsdb_schema_info_from_blob failed: %s\n", win_errstr(werr))); + talloc_free(mem_ctx); + return werr; + } + + /* store prefixMap and schema_info into cached Schema */ + talloc_free(schema->prefixmap); + schema->prefixmap = talloc_steal(schema, pfm); + + talloc_free(schema->schema_info); + schema->schema_info = talloc_steal(schema, schema_info); + + /* clean up locally allocated mem */ + talloc_free(mem_ctx); + + return WERR_OK; +} + +WERROR dsdb_get_oid_mappings_drsuapi(const struct dsdb_schema *schema, + bool include_schema_info, + TALLOC_CTX *mem_ctx, + struct drsuapi_DsReplicaOIDMapping_Ctr **_ctr) +{ + return dsdb_drsuapi_pfm_from_schema_pfm(schema->prefixmap, + include_schema_info ? schema->schema_info : NULL, + mem_ctx, _ctr); +} + +WERROR dsdb_get_drsuapi_prefixmap_as_blob(const struct drsuapi_DsReplicaOIDMapping_Ctr *ctr, + TALLOC_CTX *mem_ctx, + struct ldb_val *prefixMap) +{ + struct prefixMapBlob pfm; + enum ndr_err_code ndr_err; + pfm.version = PREFIX_MAP_VERSION_DSDB; + pfm.reserved = 0; + pfm.ctr.dsdb = *ctr; + + ndr_err = ndr_push_struct_blob(prefixMap, mem_ctx, &pfm, + (ndr_push_flags_fn_t)ndr_push_prefixMapBlob); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err); + return ntstatus_to_werror(nt_status); + } + return WERR_OK; +} + +WERROR dsdb_get_oid_mappings_ldb(const struct dsdb_schema *schema, + TALLOC_CTX *mem_ctx, + struct ldb_val *prefixMap, + struct ldb_val *schemaInfo) +{ + WERROR status; + struct drsuapi_DsReplicaOIDMapping_Ctr *ctr; + + status = dsdb_get_oid_mappings_drsuapi(schema, false, mem_ctx, &ctr); + W_ERROR_NOT_OK_RETURN(status); + + status = dsdb_get_drsuapi_prefixmap_as_blob(ctr, mem_ctx, prefixMap); + talloc_free(ctr); + W_ERROR_NOT_OK_RETURN(status); + + status = dsdb_blob_from_schema_info(schema->schema_info, mem_ctx, schemaInfo); + W_ERROR_NOT_OK_RETURN(status); + + return WERR_OK; +} + + +/* + * this function is called from within a ldb transaction from the schema_fsmo module + */ +WERROR dsdb_create_prefix_mapping(struct ldb_context *ldb, struct dsdb_schema *schema, const char *full_oid) +{ + WERROR status; + uint32_t attid; + TALLOC_CTX *mem_ctx; + struct dsdb_schema_prefixmap *pfm; + struct dsdb_schema_prefixmap *orig_pfm = NULL; + + mem_ctx = talloc_new(ldb); + W_ERROR_HAVE_NO_MEMORY(mem_ctx); + + /* Read prefixes from disk*/ + status = dsdb_read_prefixes_from_ldb(ldb, mem_ctx, &pfm); + if (!W_ERROR_IS_OK(status)) { + DEBUG(0,("dsdb_create_prefix_mapping: dsdb_read_prefixes_from_ldb: %s\n", + win_errstr(status))); + talloc_free(mem_ctx); + return status; + } + + /* Check if there is a prefix for the oid in the prefixes array*/ + status = dsdb_schema_pfm_find_oid(pfm, full_oid, NULL); + if (W_ERROR_IS_OK(status)) { + /* prefix found*/ + talloc_free(mem_ctx); + return status; + } else if (!W_ERROR_EQUAL(status, WERR_NOT_FOUND)) { + /* error */ + DEBUG(0,("dsdb_create_prefix_mapping: dsdb_find_prefix_for_oid: %s\n", + win_errstr(status))); + talloc_free(mem_ctx); + return status; + } + + /* Create the new mapping for the prefix of full_oid */ + status = dsdb_schema_pfm_make_attid(pfm, full_oid, &attid); + if (!W_ERROR_IS_OK(status)) { + DEBUG(0,("dsdb_create_prefix_mapping: dsdb_schema_pfm_make_attid: %s\n", + win_errstr(status))); + talloc_free(mem_ctx); + return status; + } + + /* + * We temporary replcate schema->prefixmap. + */ + orig_pfm = schema->prefixmap; + schema->prefixmap = pfm; + + /* Update prefixMap in ldb*/ + status = dsdb_write_prefixes_from_schema_to_ldb(mem_ctx, ldb, schema); + if (!W_ERROR_IS_OK(status)) { + DEBUG(0,("dsdb_create_prefix_mapping: dsdb_write_prefixes_to_ldb: %s\n", + win_errstr(status))); + talloc_free(mem_ctx); + return status; + } + + DEBUG(2,(__location__ " Added prefixMap %s - now have %u prefixes\n", + full_oid, schema->prefixmap->length)); + + /* + * We restore the original prefix map. + * + * The next schema reload should get an updated prefix map! + */ + schema->prefixmap = orig_pfm; + + talloc_free(mem_ctx); + return status; +} + + +WERROR dsdb_write_prefixes_from_schema_to_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, + const struct dsdb_schema *schema) +{ + WERROR status; + int ldb_ret; + struct ldb_message *msg; + struct ldb_dn *schema_dn; + struct prefixMapBlob pfm_blob; + struct ldb_val ndr_blob; + enum ndr_err_code ndr_err; + TALLOC_CTX *temp_ctx; + struct drsuapi_DsReplicaOIDMapping_Ctr *ctr; + + schema_dn = ldb_get_schema_basedn(ldb); + if (!schema_dn) { + DEBUG(0,("dsdb_write_prefixes_from_schema_to_ldb: no schema dn present\n")); + return WERR_FOOBAR; + } + + temp_ctx = talloc_new(mem_ctx); + W_ERROR_HAVE_NO_MEMORY(temp_ctx); + + /* convert schema_prefixMap to prefixMap blob */ + status = dsdb_get_oid_mappings_drsuapi(schema, false, temp_ctx, &ctr); + if (!W_ERROR_IS_OK(status)) { + talloc_free(temp_ctx); + return status; + } + + pfm_blob.version = PREFIX_MAP_VERSION_DSDB; + pfm_blob.ctr.dsdb = *ctr; + + ndr_err = ndr_push_struct_blob(&ndr_blob, temp_ctx, + &pfm_blob, + (ndr_push_flags_fn_t)ndr_push_prefixMapBlob); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + talloc_free(temp_ctx); + return WERR_FOOBAR; + } + + /* write serialized prefixMap into LDB */ + msg = ldb_msg_new(temp_ctx); + if (!msg) { + talloc_free(temp_ctx); + return WERR_NOT_ENOUGH_MEMORY; + } + + msg->dn = schema_dn; + ldb_ret = ldb_msg_add_value(msg, "prefixMap", &ndr_blob, NULL); + if (ldb_ret != 0) { + talloc_free(temp_ctx); + DEBUG(0,("dsdb_write_prefixes_from_schema_to_ldb: ldb_msg_add_value failed\n")); + return WERR_NOT_ENOUGH_MEMORY; + } + + ldb_ret = dsdb_replace(ldb, msg, DSDB_FLAG_AS_SYSTEM); + + talloc_free(temp_ctx); + + if (ldb_ret != 0) { + DEBUG(0,("dsdb_write_prefixes_from_schema_to_ldb: dsdb_replace failed\n")); + return WERR_FOOBAR; + } + + return WERR_OK; +} + +WERROR dsdb_read_prefixes_from_ldb(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, struct dsdb_schema_prefixmap **_pfm) +{ + WERROR werr; + int ldb_ret; + const struct ldb_val *prefix_val; + struct ldb_dn *schema_dn; + struct ldb_result *schema_res = NULL; + static const char *schema_attrs[] = { + "prefixMap", + NULL + }; + + schema_dn = ldb_get_schema_basedn(ldb); + if (!schema_dn) { + DEBUG(0,("dsdb_read_prefixes_from_ldb: no schema dn present\n")); + return WERR_FOOBAR; + } + + ldb_ret = ldb_search(ldb, mem_ctx, &schema_res, schema_dn, LDB_SCOPE_BASE, schema_attrs, NULL); + if (ldb_ret == LDB_ERR_NO_SUCH_OBJECT) { + DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefix map present\n")); + talloc_free(schema_res); + return WERR_FOOBAR; + } else if (ldb_ret != LDB_SUCCESS) { + DEBUG(0,("dsdb_read_prefixes_from_ldb: failed to search the schema head\n")); + talloc_free(schema_res); + return WERR_FOOBAR; + } + + prefix_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "prefixMap"); + if (!prefix_val) { + DEBUG(0,("dsdb_read_prefixes_from_ldb: no prefixMap attribute found\n")); + talloc_free(schema_res); + return WERR_FOOBAR; + } + + werr = _dsdb_prefixmap_from_ldb_val(prefix_val, + mem_ctx, + _pfm); + talloc_free(schema_res); + W_ERROR_NOT_OK_RETURN(werr); + + return WERR_OK; +} + +/* + this will be replaced with something that looks at the right part of + the schema once we know where unique indexing information is hidden + */ +static bool dsdb_schema_unique_attribute(const char *attr) +{ + const char *attrs[] = { "objectGUID", NULL }; + unsigned int i; + for (i=0;attrs[i];i++) { + if (ldb_attr_cmp(attr, attrs[i]) == 0) { + return true; + } + } + return false; +} + + +/* + setup the ldb_schema_attribute field for a dsdb_attribute + */ +static int dsdb_schema_setup_ldb_schema_attribute(struct ldb_context *ldb, + struct dsdb_attribute *attr) +{ + const char *syntax = attr->syntax->ldb_syntax; + const struct ldb_schema_syntax *s; + struct ldb_schema_attribute *a; + + if (!syntax) { + syntax = attr->syntax->ldap_oid; + } + + s = ldb_samba_syntax_by_lDAPDisplayName(ldb, attr->lDAPDisplayName); + if (s == NULL) { + s = ldb_samba_syntax_by_name(ldb, syntax); + } + if (s == NULL) { + s = ldb_standard_syntax_by_name(ldb, syntax); + } + + if (s == NULL) { + return ldb_operr(ldb); + } + + attr->ldb_schema_attribute = a = talloc(attr, struct ldb_schema_attribute); + if (attr->ldb_schema_attribute == NULL) { + return ldb_oom(ldb); + } + + a->name = attr->lDAPDisplayName; + a->flags = 0; + a->syntax = s; + + if (dsdb_schema_unique_attribute(a->name)) { + a->flags |= LDB_ATTR_FLAG_UNIQUE_INDEX; + } + if (attr->isSingleValued) { + a->flags |= LDB_ATTR_FLAG_SINGLE_VALUE; + } + + /* + * Is the attribute indexed? By treating confidential attributes as + * unindexed, we force searches to go through the unindexed search path, + * avoiding observable timing differences. + */ + if (attr->searchFlags & SEARCH_FLAG_ATTINDEX && + !(attr->searchFlags & SEARCH_FLAG_CONFIDENTIAL)) + { + a->flags |= LDB_ATTR_FLAG_INDEXED; + } + + + return LDB_SUCCESS; +} + + +#define GET_STRING_LDB(msg, attr, mem_ctx, p, elem, strict) do { \ + const struct ldb_val *get_string_val = ldb_msg_find_ldb_val(msg, attr); \ + if (get_string_val == NULL) { \ + if (strict) { \ + d_printf("%s: %s == NULL in %s\n", __location__, attr, ldb_dn_get_linearized(msg->dn)); \ + return WERR_INVALID_PARAMETER; \ + } else { \ + (p)->elem = NULL; \ + } \ + } else { \ + (p)->elem = talloc_strndup(mem_ctx, \ + (const char *)get_string_val->data, \ + get_string_val->length); \ + if (!(p)->elem) { \ + d_printf("%s: talloc_strndup failed for %s\n", __location__, attr); \ + return WERR_NOT_ENOUGH_MEMORY; \ + } \ + } \ +} while (0) + +#define GET_STRING_LIST_LDB(msg, attr, mem_ctx, p, elem) do { \ + int get_string_list_counter; \ + struct ldb_message_element *get_string_list_el = ldb_msg_find_element(msg, attr); \ + /* We may get empty attributes over the replication channel */ \ + if (get_string_list_el == NULL || get_string_list_el->num_values == 0) { \ + (p)->elem = NULL; \ + break; \ + } \ + (p)->elem = talloc_array(mem_ctx, const char *, get_string_list_el->num_values + 1); \ + for (get_string_list_counter=0; \ + get_string_list_counter < get_string_list_el->num_values; \ + get_string_list_counter++) { \ + (p)->elem[get_string_list_counter] = talloc_strndup((p)->elem, \ + (const char *)get_string_list_el->values[get_string_list_counter].data, \ + get_string_list_el->values[get_string_list_counter].length); \ + if (!(p)->elem[get_string_list_counter]) { \ + d_printf("%s: talloc_strndup failed for %s\n", __location__, attr); \ + return WERR_NOT_ENOUGH_MEMORY; \ + } \ + (p)->elem[get_string_list_counter+1] = NULL; \ + } \ + talloc_steal(mem_ctx, (p)->elem); \ +} while (0) + +#define GET_BOOL_LDB(msg, attr, p, elem, strict) do { \ + const char *str; \ + str = ldb_msg_find_attr_as_string(msg, attr, NULL);\ + if (str == NULL) { \ + if (strict) { \ + d_printf("%s: %s == NULL\n", __location__, attr); \ + return WERR_INVALID_PARAMETER; \ + } else { \ + (p)->elem = false; \ + } \ + } else if (strcasecmp("TRUE", str) == 0) { \ + (p)->elem = true; \ + } else if (strcasecmp("FALSE", str) == 0) { \ + (p)->elem = false; \ + } else { \ + d_printf("%s: %s == %s\n", __location__, attr, str); \ + return WERR_INVALID_PARAMETER; \ + } \ +} while (0) + +#define GET_UINT32_LDB(msg, attr, p, elem) do { \ + (p)->elem = ldb_msg_find_attr_as_uint(msg, attr, 0);\ +} while (0) + +#define GET_UINT32_PTR_LDB(msg, attr, mem_ctx, p, elem) do { \ + uint64_t _v = ldb_msg_find_attr_as_uint64(msg, attr, UINT64_MAX);\ + if (_v == UINT64_MAX) { \ + (p)->elem = NULL; \ + } else if (_v > UINT32_MAX) { \ + d_printf("%s: %s == 0x%llX\n", __location__, \ + attr, (unsigned long long)_v); \ + return WERR_INVALID_PARAMETER; \ + } else { \ + (p)->elem = talloc(mem_ctx, uint32_t); \ + if (!(p)->elem) { \ + d_printf("%s: talloc failed for %s\n", __location__, attr); \ + return WERR_NOT_ENOUGH_MEMORY; \ + } \ + *(p)->elem = (uint32_t)_v; \ + } \ +} while (0) + +#define GET_GUID_LDB(msg, attr, p, elem) do { \ + (p)->elem = samdb_result_guid(msg, attr);\ +} while (0) + +#define GET_BLOB_LDB(msg, attr, mem_ctx, p, elem) do { \ + const struct ldb_val *_val;\ + _val = ldb_msg_find_ldb_val(msg, attr);\ + if (_val) {\ + (p)->elem = *_val;\ + talloc_steal(mem_ctx, (p)->elem.data);\ + } else {\ + ZERO_STRUCT((p)->elem);\ + }\ +} while (0) + +/** Create an dsdb_attribute out of ldb message, attr must be already talloced + * + * If supplied the attribute will be checked against the prefixmap to + * ensure it can be mapped. However we can't have this attribute + * const as dsdb_schema_pfm_attid_from_oid calls + * dsdb_schema_pfm_make_attid_impl() which may modify prefixmap in + * other situations. + */ + +WERROR dsdb_attribute_from_ldb(struct dsdb_schema_prefixmap *prefixmap, + struct ldb_message *msg, + struct dsdb_attribute *attr) +{ + WERROR status; + if (attr == NULL) { + DEBUG(0, ("%s: attr is null, it's expected not to be so\n", __location__)); + return WERR_INVALID_PARAMETER; + } + + GET_STRING_LDB(msg, "cn", attr, attr, cn, false); + + /* + * This allows for the fact that the CN attribute is not + * replicated over DRS, it is only replicated under the alias + * 'name'. + */ + if (attr->cn == NULL) { + GET_STRING_LDB(msg, "name", attr, attr, cn, true); + } + + GET_STRING_LDB(msg, "lDAPDisplayName", attr, attr, lDAPDisplayName, true); + GET_STRING_LDB(msg, "attributeID", attr, attr, attributeID_oid, true); + if (!prefixmap || prefixmap->length == 0) { + /* set an invalid value */ + attr->attributeID_id = DRSUAPI_ATTID_INVALID; + } else { + status = dsdb_schema_pfm_attid_from_oid(prefixmap, + attr->attributeID_oid, + &attr->attributeID_id); + if (!W_ERROR_IS_OK(status)) { + DEBUG(0,("%s: '%s': unable to map attributeID %s: %s\n", + __location__, attr->lDAPDisplayName, attr->attributeID_oid, + win_errstr(status))); + return status; + } + } + /* fetch msDS-IntId to be used in resolving ATTRTYP values */ + GET_UINT32_LDB(msg, "msDS-IntId", attr, msDS_IntId); + + GET_GUID_LDB(msg, "schemaIDGUID", attr, schemaIDGUID); + GET_UINT32_LDB(msg, "mAPIID", attr, mAPIID); + + GET_GUID_LDB(msg, "attributeSecurityGUID", attr, attributeSecurityGUID); + + GET_GUID_LDB(msg, "objectGUID", attr, objectGUID); + + GET_UINT32_LDB(msg, "searchFlags", attr, searchFlags); + GET_UINT32_LDB(msg, "systemFlags", attr, systemFlags); + GET_BOOL_LDB(msg, "isMemberOfPartialAttributeSet", attr, isMemberOfPartialAttributeSet, false); + GET_UINT32_LDB(msg, "linkID", attr, linkID); + + GET_STRING_LDB(msg, "attributeSyntax", attr, attr, attributeSyntax_oid, true); + if (!prefixmap || prefixmap->length == 0) { + /* set an invalid value */ + attr->attributeSyntax_id = DRSUAPI_ATTID_INVALID; + } else { + status = dsdb_schema_pfm_attid_from_oid(prefixmap, + attr->attributeSyntax_oid, + &attr->attributeSyntax_id); + if (!W_ERROR_IS_OK(status)) { + DEBUG(0,("%s: '%s': unable to map attributeSyntax_ %s: %s\n", + __location__, attr->lDAPDisplayName, attr->attributeSyntax_oid, + win_errstr(status))); + return status; + } + } + GET_UINT32_LDB(msg, "oMSyntax", attr, oMSyntax); + GET_BLOB_LDB(msg, "oMObjectClass", attr, attr, oMObjectClass); + + GET_BOOL_LDB(msg, "isSingleValued", attr, isSingleValued, true); + GET_UINT32_PTR_LDB(msg, "rangeLower", attr, attr, rangeLower); + GET_UINT32_PTR_LDB(msg, "rangeUpper", attr, attr, rangeUpper); + GET_BOOL_LDB(msg, "extendedCharsAllowed", attr, extendedCharsAllowed, false); + + GET_UINT32_LDB(msg, "schemaFlagsEx", attr, schemaFlagsEx); + GET_BLOB_LDB(msg, "msDs-Schema-Extensions", attr, attr, msDs_Schema_Extensions); + + GET_BOOL_LDB(msg, "showInAdvancedViewOnly", attr, showInAdvancedViewOnly, false); + GET_STRING_LDB(msg, "adminDisplayName", attr, attr, adminDisplayName, false); + GET_STRING_LDB(msg, "adminDescription", attr, attr, adminDescription, false); + GET_STRING_LDB(msg, "classDisplayName", attr, attr, classDisplayName, false); + GET_BOOL_LDB(msg, "isEphemeral", attr, isEphemeral, false); + GET_BOOL_LDB(msg, "isDefunct", attr, isDefunct, false); + GET_BOOL_LDB(msg, "systemOnly", attr, systemOnly, false); + + return WERR_OK; +} + +WERROR dsdb_set_attribute_from_ldb_dups(struct ldb_context *ldb, + struct dsdb_schema *schema, + struct ldb_message *msg, + bool checkdups) +{ + WERROR status; + struct dsdb_attribute *attr = talloc_zero(schema, struct dsdb_attribute); + if (!attr) { + return WERR_NOT_ENOUGH_MEMORY; + } + + status = dsdb_attribute_from_ldb(schema->prefixmap, msg, attr); + if (!W_ERROR_IS_OK(status)) { + return status; + } + + attr->syntax = dsdb_syntax_for_attribute(attr); + if (!attr->syntax) { + DEBUG(0,(__location__ ": Unknown schema syntax for %s\n", + attr->lDAPDisplayName)); + return WERR_DS_ATT_SCHEMA_REQ_SYNTAX; + } + + if (dsdb_schema_setup_ldb_schema_attribute(ldb, attr) != LDB_SUCCESS) { + DEBUG(0,(__location__ ": Unknown schema syntax for %s - ldb_syntax: %s, ldap_oid: %s\n", + attr->lDAPDisplayName, + attr->syntax->ldb_syntax, + attr->syntax->ldap_oid)); + return WERR_DS_ATT_SCHEMA_REQ_SYNTAX; + } + + if (checkdups) { + const struct dsdb_attribute *a2; + struct dsdb_attribute **a; + uint32_t i; + + a2 = dsdb_attribute_by_attributeID_id(schema, + attr->attributeID_id); + if (a2 == NULL) { + goto done; + } + + i = schema->attributes_to_remove_size; + a = talloc_realloc(schema, schema->attributes_to_remove, + struct dsdb_attribute *, i + 1); + if (a == NULL) { + return WERR_NOT_ENOUGH_MEMORY; + } + /* Mark the old attribute as to be removed */ + a[i] = discard_const_p(struct dsdb_attribute, a2); + schema->attributes_to_remove = a; + schema->attributes_to_remove_size++; + } + +done: + DLIST_ADD(schema->attributes, attr); + return WERR_OK; +} + +WERROR dsdb_set_attribute_from_ldb(struct ldb_context *ldb, + struct dsdb_schema *schema, + struct ldb_message *msg) +{ + return dsdb_set_attribute_from_ldb_dups(ldb, schema, msg, false); +} + +WERROR dsdb_set_class_from_ldb_dups(struct dsdb_schema *schema, + struct ldb_message *msg, + bool checkdups) +{ + WERROR status; + struct dsdb_class *obj = talloc_zero(schema, struct dsdb_class); + if (!obj) { + return WERR_NOT_ENOUGH_MEMORY; + } + GET_STRING_LDB(msg, "cn", obj, obj, cn, false); + + /* + * This allows for the fact that the CN attribute is not + * replicated over DRS, it is only replicated under the alias + * 'name'. + */ + if (obj->cn == NULL) { + GET_STRING_LDB(msg, "name", obj, obj, cn, true); + } + + GET_STRING_LDB(msg, "lDAPDisplayName", obj, obj, lDAPDisplayName, true); + GET_STRING_LDB(msg, "governsID", obj, obj, governsID_oid, true); + if (!schema->prefixmap || schema->prefixmap->length == 0) { + /* set an invalid value */ + obj->governsID_id = DRSUAPI_ATTID_INVALID; + } else { + status = dsdb_schema_pfm_attid_from_oid(schema->prefixmap, + obj->governsID_oid, + &obj->governsID_id); + if (!W_ERROR_IS_OK(status)) { + DEBUG(0,("%s: '%s': unable to map governsID %s: %s\n", + __location__, obj->lDAPDisplayName, obj->governsID_oid, + win_errstr(status))); + return status; + } + } + GET_GUID_LDB(msg, "schemaIDGUID", obj, schemaIDGUID); + GET_GUID_LDB(msg, "objectGUID", obj, objectGUID); + + GET_UINT32_LDB(msg, "objectClassCategory", obj, objectClassCategory); + GET_STRING_LDB(msg, "rDNAttID", obj, obj, rDNAttID, false); + GET_STRING_LDB(msg, "defaultObjectCategory", obj, obj, defaultObjectCategory, true); + + GET_STRING_LDB(msg, "subClassOf", obj, obj, subClassOf, true); + + GET_STRING_LIST_LDB(msg, "systemAuxiliaryClass", obj, obj, systemAuxiliaryClass); + GET_STRING_LIST_LDB(msg, "auxiliaryClass", obj, obj, auxiliaryClass); + + GET_STRING_LIST_LDB(msg, "systemMustContain", obj, obj, systemMustContain); + GET_STRING_LIST_LDB(msg, "systemMayContain", obj, obj, systemMayContain); + GET_STRING_LIST_LDB(msg, "mustContain", obj, obj, mustContain); + GET_STRING_LIST_LDB(msg, "mayContain", obj, obj, mayContain); + + GET_STRING_LIST_LDB(msg, "systemPossSuperiors", obj, obj, systemPossSuperiors); + GET_STRING_LIST_LDB(msg, "possSuperiors", obj, obj, possSuperiors); + + GET_STRING_LDB(msg, "defaultSecurityDescriptor", obj, obj, defaultSecurityDescriptor, false); + + GET_UINT32_LDB(msg, "schemaFlagsEx", obj, schemaFlagsEx); + GET_UINT32_LDB(msg, "systemFlags", obj, systemFlags); + GET_BLOB_LDB(msg, "msDs-Schema-Extensions", obj, obj, msDs_Schema_Extensions); + + GET_BOOL_LDB(msg, "showInAdvancedViewOnly", obj, showInAdvancedViewOnly, false); + GET_STRING_LDB(msg, "adminDisplayName", obj, obj, adminDisplayName, false); + GET_STRING_LDB(msg, "adminDescription", obj, obj, adminDescription, false); + GET_STRING_LDB(msg, "classDisplayName", obj, obj, classDisplayName, false); + GET_BOOL_LDB(msg, "defaultHidingValue", obj, defaultHidingValue, false); + GET_BOOL_LDB(msg, "isDefunct", obj, isDefunct, false); + GET_BOOL_LDB(msg, "systemOnly", obj, systemOnly, false); + + if (checkdups) { + const struct dsdb_class *c2; + struct dsdb_class **c; + uint32_t i; + + c2 = dsdb_class_by_governsID_id(schema, obj->governsID_id); + if (c2 == NULL) { + goto done; + } + + i = schema->classes_to_remove_size; + c = talloc_realloc(schema, schema->classes_to_remove, + struct dsdb_class *, i + 1); + if (c == NULL) { + return WERR_NOT_ENOUGH_MEMORY; + } + /* Mark the old class to be removed */ + c[i] = discard_const_p(struct dsdb_class, c2); + schema->classes_to_remove = c; + schema->classes_to_remove_size++; + } + +done: + DLIST_ADD(schema->classes, obj); + return WERR_OK; +} + +WERROR dsdb_set_class_from_ldb(struct dsdb_schema *schema, + struct ldb_message *msg) +{ + return dsdb_set_class_from_ldb_dups(schema, msg, false); +} + +#define dsdb_oom(error_string, mem_ctx) *error_string = talloc_asprintf(mem_ctx, "dsdb out of memory at %s:%d\n", __FILE__, __LINE__) + +/* + Fill a DSDB schema from the ldb results provided. This is called + directly when a schema must be created with a pre-initialised prefixMap +*/ + +int dsdb_load_ldb_results_into_schema(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, + struct dsdb_schema *schema, + struct ldb_result *attrs_class_res, + char **error_string) +{ + unsigned int i; + WERROR status; + + schema->ts_last_change = 0; + for (i=0; i < attrs_class_res->count; i++) { + const char *prefixMap = NULL; + /* + * attrs_class_res also includes the schema object; + * we only want to process classes & attributes + */ + prefixMap = ldb_msg_find_attr_as_string( + attrs_class_res->msgs[i], + "prefixMap", NULL); + if (prefixMap != NULL) { + continue; + } + + status = dsdb_schema_set_el_from_ldb_msg(ldb, schema, + attrs_class_res->msgs[i]); + if (!W_ERROR_IS_OK(status)) { + *error_string = talloc_asprintf(mem_ctx, + "dsdb_load_ldb_results_into_schema: failed to load attribute or class definition: %s:%s", + ldb_dn_get_linearized(attrs_class_res->msgs[i]->dn), + win_errstr(status)); + DEBUG(0,(__location__ ": %s\n", *error_string)); + return LDB_ERR_CONSTRAINT_VIOLATION; + } + } + + return LDB_SUCCESS; +} + +/* + 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 in schema_fsmo +*/ + +int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, + struct ldb_message *schema_msg, + struct ldb_result *attrs_class_res, + struct dsdb_schema **schema_out, + char **error_string) +{ + WERROR status; + const struct ldb_val *prefix_val; + const struct ldb_val *info_val; + struct ldb_val info_val_default; + struct dsdb_schema *schema; + void *lp_opaque = ldb_get_opaque(ldb, "loadparm"); + int ret; + + TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx); + if (!tmp_ctx) { + dsdb_oom(error_string, mem_ctx); + return ldb_operr(ldb); + } + + schema = dsdb_new_schema(tmp_ctx); + if (!schema) { + dsdb_oom(error_string, mem_ctx); + talloc_free(tmp_ctx); + return ldb_operr(ldb); + } + + if (lp_opaque) { + struct loadparm_context *lp_ctx = talloc_get_type_abort(lp_opaque, struct loadparm_context); + schema->fsmo.update_allowed = lpcfg_parm_bool(lp_ctx, NULL, + "dsdb", "schema update allowed", + false); + } + + prefix_val = ldb_msg_find_ldb_val(schema_msg, "prefixMap"); + if (!prefix_val) { + *error_string = talloc_asprintf(mem_ctx, + "schema_fsmo_init: no prefixMap attribute found"); + DEBUG(0,(__location__ ": %s\n", *error_string)); + talloc_free(tmp_ctx); + return LDB_ERR_CONSTRAINT_VIOLATION; + } + info_val = ldb_msg_find_ldb_val(schema_msg, "schemaInfo"); + if (!info_val) { + status = dsdb_schema_info_blob_new(mem_ctx, &info_val_default); + if (!W_ERROR_IS_OK(status)) { + *error_string = talloc_asprintf(mem_ctx, + "schema_fsmo_init: dsdb_schema_info_blob_new() failed - %s", + win_errstr(status)); + DEBUG(0,(__location__ ": %s\n", *error_string)); + talloc_free(tmp_ctx); + return ldb_operr(ldb); + } + info_val = &info_val_default; + } + + status = dsdb_load_oid_mappings_ldb(schema, prefix_val, info_val); + if (!W_ERROR_IS_OK(status)) { + *error_string = talloc_asprintf(mem_ctx, + "schema_fsmo_init: failed to load oid mappings: %s", + win_errstr(status)); + DEBUG(0,(__location__ ": %s\n", *error_string)); + talloc_free(tmp_ctx); + return LDB_ERR_CONSTRAINT_VIOLATION; + } + + ret = dsdb_load_ldb_results_into_schema(mem_ctx, ldb, schema, attrs_class_res, error_string); + if (ret != LDB_SUCCESS) { + talloc_free(tmp_ctx); + return ret; + } + + schema->fsmo.master_dn = ldb_msg_find_attr_as_dn(ldb, schema, schema_msg, "fSMORoleOwner"); + if (ldb_dn_compare(samdb_ntds_settings_dn(ldb, tmp_ctx), schema->fsmo.master_dn) == 0) { + schema->fsmo.we_are_master = true; + } else { + schema->fsmo.we_are_master = false; + } + + DEBUG(5, ("schema_fsmo_init: we are master[%s] updates allowed[%s]\n", + (schema->fsmo.we_are_master?"yes":"no"), + (schema->fsmo.update_allowed?"yes":"no"))); + + *schema_out = talloc_steal(mem_ctx, schema); + talloc_free(tmp_ctx); + return LDB_SUCCESS; +} |