The branch, master has been updated via 83f0dc4 s4-dsdb: special case for deleted objects one way link via 9b981ff s4-dsdb: don't display links to deleted objects via a729dbb s4-dsdb: fixed one_way_link calculation via a5f311d s4-dsdb: fixed behaviour of show_deleted and show_recycled control via 365f705 s4-dsdb: fixed the check_optional_feature() call from ceb831c s3:lib: remove unused/empty modules.c
http://gitweb.samba.org/?p=samba.git;a=shortlog;h=master - Log ----------------------------------------------------------------- commit 83f0dc44a70ed7e49bcee3718ff17b2063b2a01e Author: Andrew Tridgell <tri...@samba.org> Date: Fri Oct 7 15:25:59 2011 +1100 s4-dsdb: special case for deleted objects one way link we show wellknown links to the deleted objects container Pair-Programmed-With: Andrew Bartlett <abart...@samba.org> Autobuild-User: Andrew Tridgell <tri...@samba.org> Autobuild-Date: Fri Oct 7 07:58:08 CEST 2011 on sn-devel-104 commit 9b981ff1e82e06c9365b6ae46ddc911a4a84f560 Author: Andrew Tridgell <tri...@samba.org> Date: Fri Oct 7 13:20:35 2011 +1100 s4-dsdb: don't display links to deleted objects unless the user asks for the display of deactivated links, we should not display DNs that link to deleted objects Pair-Programmed-With: Andrew Bartlett <abart...@samba.org> commit a729dbb269d4a368f79dcadaa5e74adb91bfd6e2 Author: Andrew Tridgell <tri...@samba.org> Date: Fri Oct 7 13:19:48 2011 +1100 s4-dsdb: fixed one_way_link calculation we need to check for the other end of the link, not the current linkID Pair-Programmed-With: Andrew Bartlett <abart...@samba.org> commit a5f311d4690f6b76e6bd304b1fad98811488ed1f Author: Andrew Tridgell <tri...@samba.org> Date: Fri Oct 7 11:46:59 2011 +1100 s4-dsdb: fixed behaviour of show_deleted and show_recycled control to correctly implement the show_deleted and show_recycled control we need to know if the recyclebin is enabled. When not enabled, the isRecycled attribute is ignored, and only isDeleted is used. Pair-Programmed-With: Andrew Bartlett <abart...@samba.org> commit 365f705345be02915fafedc83ec3c610285f6f81 Author: Andrew Tridgell <tri...@samba.org> Date: Fri Oct 7 11:46:05 2011 +1100 s4-dsdb: fixed the check_optional_feature() call the dsdb_check_optional_feature() call should look on our own NTDS DN for the enabled feature. This should work for all features, not just for forest wide fetaures. Pair-Programmed-With: Andrew Bartlett <abart...@samba.org> ----------------------------------------------------------------------- Summary of changes: source4/dsdb/samdb/ldb_modules/extended_dn_out.c | 66 +++++++++++-- source4/dsdb/samdb/ldb_modules/show_deleted.c | 109 ++++++++++++++-------- source4/dsdb/samdb/ldb_modules/util.c | 43 +++++---- source4/dsdb/schema/schema_set.c | 3 +- 4 files changed, 153 insertions(+), 68 deletions(-) Changeset truncated at 500 lines: diff --git a/source4/dsdb/samdb/ldb_modules/extended_dn_out.c b/source4/dsdb/samdb/ldb_modules/extended_dn_out.c index 9e1bec9..8e28ec7 100644 --- a/source4/dsdb/samdb/ldb_modules/extended_dn_out.c +++ b/source4/dsdb/samdb/ldb_modules/extended_dn_out.c @@ -353,30 +353,51 @@ struct extended_search_context { fix one-way links to have the right string DN, to cope with renames of the target */ -static int fix_one_way_link(struct extended_search_context *ac, struct ldb_dn *dn) +static int fix_one_way_link(struct extended_search_context *ac, struct ldb_dn *dn, + bool is_deleted_objects, bool *remove_value) { struct GUID guid; NTSTATUS status; int ret; struct ldb_dn *real_dn; + uint32_t search_flags; + TALLOC_CTX *tmp_ctx = talloc_new(ac); + const char *attrs[] = { NULL }; + struct ldb_result *res; + + (*remove_value) = false; status = dsdb_get_extended_dn_guid(dn, &guid, "GUID"); if (!NT_STATUS_IS_OK(status)) { /* this is a strange DN that doesn't have a GUID! just return the current DN string?? */ + talloc_free(tmp_ctx); return LDB_SUCCESS; } - ret = dsdb_module_dn_by_guid(ac->module, dn, &guid, &real_dn, ac->req); - if (ret != LDB_SUCCESS) { - /* it could be on another server, we need to leave the - string DN alone */ + search_flags = DSDB_FLAG_NEXT_MODULE | DSDB_SEARCH_SEARCH_ALL_PARTITIONS | DSDB_SEARCH_ONE_ONLY; + + if (ldb_request_get_control(ac->req, LDB_CONTROL_SHOW_DEACTIVATED_LINK_OID) || + is_deleted_objects) { + search_flags |= DSDB_SEARCH_SHOW_DELETED; + } + + ret = dsdb_module_search(ac->module, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE, attrs, + search_flags, ac->req, "objectguid=%s", GUID_string(tmp_ctx, &guid)); + if (ret != LDB_SUCCESS || res->count != 1) { + /* if we can't resolve this GUID, then we don't + display the link. This could be a link to a NC that we don't + have, or it could be a link to a deleted object + */ + (*remove_value) = true; + talloc_free(tmp_ctx); return LDB_SUCCESS; } + real_dn = res->msgs[0]->dn; if (strcmp(ldb_dn_get_linearized(dn), ldb_dn_get_linearized(real_dn)) == 0) { /* its already correct */ - talloc_free(real_dn); + talloc_free(tmp_ctx); return LDB_SUCCESS; } @@ -384,10 +405,10 @@ static int fix_one_way_link(struct extended_search_context *ac, struct ldb_dn *d * real DN */ if (!ldb_dn_replace_components(dn, real_dn)) { - talloc_free(real_dn); + talloc_free(tmp_ctx); return ldb_operr(ldb_module_get_ctx(ac->module)); } - talloc_free(real_dn); + talloc_free(tmp_ctx); return LDB_SUCCESS; } @@ -524,6 +545,7 @@ static int extended_callback(struct ldb_request *req, struct ldb_reply *ares, struct ldb_dn *dn; struct dsdb_dn *dsdb_dn = NULL; struct ldb_val *plain_dn = &msg->elements[i].values[j]; + bool is_deleted_objects = false; if (!checked_reveal_control) { have_reveal_control = @@ -559,10 +581,21 @@ static int extended_callback(struct ldb_request *req, struct ldb_reply *ares, } dn = dsdb_dn->dn; + /* we need to know if this is a link to the + deleted objects container for fixing one way + links */ + if (dsdb_dn->extra_part.length == 16) { + char *hex_string = data_blob_hex_string_upper(req, &dsdb_dn->extra_part); + if (hex_string && strcmp(hex_string, DS_GUID_DELETED_OBJECTS_CONTAINER) == 0) { + is_deleted_objects = true; + } + talloc_free(hex_string); + } + /* don't let users see the internal extended GUID components */ if (!have_reveal_control) { - const char *accept[] = { "GUID", "SID", "WKGUID", NULL }; + const char *accept[] = { "GUID", "SID", NULL }; ldb_dn_extended_filter(dn, accept); } @@ -598,11 +631,24 @@ static int extended_callback(struct ldb_request *req, struct ldb_reply *ares, objectCategory elements in the schema */ if (attribute->one_way_link && strcasecmp(attribute->lDAPDisplayName, "objectCategory") != 0) { - ret = fix_one_way_link(ac, dn); + bool remove_value; + ret = fix_one_way_link(ac, dn, is_deleted_objects, &remove_value); if (ret != LDB_SUCCESS) { talloc_free(dsdb_dn); return ldb_module_done(ac->req, NULL, NULL, ret); } + if (remove_value && + !ldb_request_get_control(req, LDB_CONTROL_REVEAL_INTERNALS)) { + /* we show these with REVEAL + to allow dbcheck to find and + cleanup these orphaned links */ + memmove(&msg->elements[i].values[j], + &msg->elements[i].values[j+1], + (msg->elements[i].num_values-(j+1))*sizeof(struct ldb_val)); + msg->elements[i].num_values--; + j--; + continue; + } } if (make_extended_dn) { diff --git a/source4/dsdb/samdb/ldb_modules/show_deleted.c b/source4/dsdb/samdb/ldb_modules/show_deleted.c index bef4c06..773dcfb 100644 --- a/source4/dsdb/samdb/ldb_modules/show_deleted.c +++ b/source4/dsdb/samdb/ldb_modules/show_deleted.c @@ -36,60 +36,83 @@ #include "dsdb/samdb/samdb.h" #include "dsdb/samdb/ldb_modules/util.h" +struct show_deleted_state { + bool need_refresh; + bool recycle_bin_enabled; +}; + static int show_deleted_search(struct ldb_module *module, struct ldb_request *req) { struct ldb_context *ldb; struct ldb_control *show_del, *show_rec; struct ldb_request *down_req; struct ldb_parse_tree *new_tree = req->op.search.tree; + struct show_deleted_state *state; int ret; + const char *attr_filter = NULL; ldb = ldb_module_get_ctx(module); + state = talloc_get_type(ldb_module_get_private(module), struct show_deleted_state); + + /* note that state may be NULL during initialisation */ + if (state != NULL && state->need_refresh) { + state->need_refresh = false; + ret = dsdb_recyclebin_enabled(module, &state->recycle_bin_enabled); + if (ret != LDB_SUCCESS) { + return ret; + } + } + + /* This is the logic from MS-ADTS 3.1.1.3.4.1.14 that + determines if objects are visible + + Extended control name Deleted-objects Tombstones Recycled-objects + LDAP_SERVER_SHOW_DELETED_OID Visible Visible Not Visible + LDAP_SERVER_SHOW_RECYCLED_OID Visible Visible Visible + + Note that if the recycle bin is disabled, then the + isRecycled attribute is ignored, and objects are either + "normal" or "tombstone". + + When the recycle bin is enabled, then objects are in one of + 3 states, "normal", "deleted" or "recycled" + */ + /* check if there's a show deleted control */ show_del = ldb_request_get_control(req, LDB_CONTROL_SHOW_DELETED_OID); /* check if there's a show recycled control */ show_rec = ldb_request_get_control(req, LDB_CONTROL_SHOW_RECYCLED_OID); - if ((show_del == NULL) && (show_rec == NULL)) { - /* Here we have to suppress all deleted objects: - * MS-ADTS 3.1.1.3.4.1 - * - * Filter: (&(!(isDeleted=TRUE))(...)) - */ - /* FIXME: we could use a constant tree here once we are sure - * that no ldb modules modify trees in-site */ - new_tree = talloc(req, struct ldb_parse_tree); - if (!new_tree) { - return ldb_oom(ldb); + + if (state == NULL || !state->recycle_bin_enabled) { + /* when recycle bin is not enabled, then all we look + at is the isDeleted attribute. We hide objects with this + attribute set to TRUE when the client has not specified either + SHOW_DELETED or SHOW_RECYCLED + */ + if (show_del != NULL || show_rec != NULL) { + attr_filter = NULL; + } else { + attr_filter = "isDeleted"; } - new_tree->operation = LDB_OP_AND; - new_tree->u.list.num_elements = 2; - new_tree->u.list.elements = talloc_array(new_tree, struct ldb_parse_tree *, 2); - if (!new_tree->u.list.elements) { - return ldb_oom(ldb); + } else { + /* the recycle bin is enabled + */ + if (show_rec != NULL) { + attr_filter = NULL; + } else if (show_del != NULL) { + /* we want deleted but not recycled objects */ + attr_filter = "isRecycled"; + } else { + /* we don't want deleted or recycled objects, + * which we get by filtering on isDeleted */ + attr_filter = "isDeleted"; } + } - new_tree->u.list.elements[0] = talloc(new_tree->u.list.elements, struct ldb_parse_tree); - new_tree->u.list.elements[0]->operation = LDB_OP_NOT; - new_tree->u.list.elements[0]->u.isnot.child = - talloc(new_tree->u.list.elements, struct ldb_parse_tree); - if (!new_tree->u.list.elements[0]->u.isnot.child) { - return ldb_oom(ldb); - } - new_tree->u.list.elements[0]->u.isnot.child->operation = LDB_OP_EQUALITY; - new_tree->u.list.elements[0]->u.isnot.child->u.equality.attr = "isDeleted"; - new_tree->u.list.elements[0]->u.isnot.child->u.equality.value = data_blob_string_const("TRUE"); - new_tree->u.list.elements[1] = req->op.search.tree; - } else if ((show_del != NULL) && (show_rec == NULL)) { - /* Here we need to suppress all recycled objects: - * MS-ADTS 3.1.1.3.4.1 - * - * Filter: (&(!(isRecycled=TRUE))(...)) - */ - /* FIXME: we could use a constant tree here once we are sure - * that no ldb modules modify trees in-site */ + if (attr_filter != NULL) { new_tree = talloc(req, struct ldb_parse_tree); if (!new_tree) { return ldb_oom(ldb); @@ -109,9 +132,8 @@ static int show_deleted_search(struct ldb_module *module, struct ldb_request *re return ldb_oom(ldb); } new_tree->u.list.elements[0]->u.isnot.child->operation = LDB_OP_EQUALITY; - new_tree->u.list.elements[0]->u.isnot.child->u.equality.attr = "isRecycled"; + new_tree->u.list.elements[0]->u.isnot.child->u.equality.attr = attr_filter; new_tree->u.list.elements[0]->u.isnot.child->u.equality.value = data_blob_string_const("TRUE"); - new_tree->u.list.elements[1] = req->op.search.tree; } @@ -144,6 +166,13 @@ static int show_deleted_init(struct ldb_module *module) { struct ldb_context *ldb; int ret; + struct show_deleted_state *state; + + state = talloc_zero(module, struct show_deleted_state); + if (state == NULL) { + return ldb_module_oom(module); + } + state->need_refresh = true; ldb = ldb_module_get_ctx(module); @@ -161,7 +190,11 @@ static int show_deleted_init(struct ldb_module *module) return ldb_operr(ldb); } - return ldb_next_init(module); + ret = ldb_next_init(module); + + ldb_module_set_private(module, state); + + return ret; } static const struct ldb_module_ops ldb_show_deleted_module_ops = { diff --git a/source4/dsdb/samdb/ldb_modules/util.c b/source4/dsdb/samdb/ldb_modules/util.c index 7f601af..cee9ac0 100644 --- a/source4/dsdb/samdb/ldb_modules/util.c +++ b/source4/dsdb/samdb/ldb_modules/util.c @@ -652,8 +652,16 @@ int dsdb_check_single_valued_link(const struct dsdb_attribute *attr, return LDB_SUCCESS; } -int dsdb_check_optional_feature(struct ldb_module *module, struct ldb_dn *scope, - struct GUID op_feature_guid, bool *feature_enabled) +/* + check if an optional feature is enabled on our own NTDS DN + + Note that features can be marked as enabled in more than one + place. For example, the recyclebin feature is marked as enabled both + on the CN=Partitions,CN=Configurration object and on the NTDS DN of + each DC in the forest. It seems likely that it is the job of the KCC + to propogate between the two + */ +int dsdb_check_optional_feature(struct ldb_module *module, struct GUID op_feature_guid, bool *feature_enabled) { TALLOC_CTX *tmp_ctx; struct ldb_context *ldb = ldb_module_get_ctx(module); @@ -664,33 +672,35 @@ int dsdb_check_optional_feature(struct ldb_module *module, struct ldb_dn *scope, int ret; unsigned int i; struct ldb_message_element *el; + struct ldb_dn *feature_dn; + + feature_dn = samdb_ntds_settings_dn(ldb_module_get_ctx(module)); + if (feature_dn == NULL) { + return ldb_operr(ldb_module_get_ctx(module)); + } *feature_enabled = false; tmp_ctx = talloc_new(ldb); - ret = ldb_search(ldb, tmp_ctx, &res, - scope, LDB_SCOPE_BASE, attrs, - NULL); + ret = dsdb_module_search_dn(module, tmp_ctx, &res, feature_dn, attrs, DSDB_FLAG_NEXT_MODULE, NULL); if (ret != LDB_SUCCESS) { ldb_asprintf_errstring(ldb, - "Could no find the scope object - dn: %s\n", - ldb_dn_get_linearized(scope)); + "Could not find the feature object - dn: %s\n", + ldb_dn_get_linearized(feature_dn)); talloc_free(tmp_ctx); return LDB_ERR_OPERATIONS_ERROR; } if (res->msgs[0]->num_elements > 0) { + const char *attrs2[] = {"msDS-OptionalFeatureGUID", NULL}; el = ldb_msg_find_element(res->msgs[0],"msDS-EnabledFeature"); - attrs[0] = "msDS-OptionalFeatureGUID"; - for (i=0; i<el->num_values; i++) { search_dn = ldb_dn_from_ldb_val(tmp_ctx, ldb, &el->values[i]); - ret = ldb_search(ldb, tmp_ctx, &res, - search_dn, LDB_SCOPE_BASE, attrs, - NULL); + ret = dsdb_module_search_dn(module, tmp_ctx, &res, + search_dn, attrs2, DSDB_FLAG_NEXT_MODULE, NULL); if (ret != LDB_SUCCESS) { ldb_asprintf_errstring(ldb, "Could no find object dn: %s\n", @@ -701,7 +711,7 @@ int dsdb_check_optional_feature(struct ldb_module *module, struct ldb_dn *scope, search_guid = samdb_result_guid(res->msgs[0], "msDS-OptionalFeatureGUID"); - if (GUID_compare(&search_guid, &op_feature_guid) == 0){ + if (GUID_compare(&search_guid, &op_feature_guid) == 0) { *feature_enabled = true; break; } @@ -1007,22 +1017,17 @@ bool dsdb_module_am_administrator(struct ldb_module *module) int dsdb_recyclebin_enabled(struct ldb_module *module, bool *enabled) { struct ldb_context *ldb = ldb_module_get_ctx(module); - struct ldb_dn *partitions_dn; struct GUID recyclebin_guid; int ret; - partitions_dn = samdb_partitions_dn(ldb, module); - GUID_from_string(DS_GUID_FEATURE_RECYCLE_BIN, &recyclebin_guid); - ret = dsdb_check_optional_feature(module, partitions_dn, recyclebin_guid, enabled); + ret = dsdb_check_optional_feature(module, recyclebin_guid, enabled); if (ret != LDB_SUCCESS) { ldb_asprintf_errstring(ldb, "Could not verify if Recycle Bin is enabled \n"); - talloc_free(partitions_dn); return LDB_ERR_UNWILLING_TO_PERFORM; } - talloc_free(partitions_dn); return LDB_SUCCESS; } diff --git a/source4/dsdb/schema/schema_set.c b/source4/dsdb/schema/schema_set.c index 8cb06bb..18f3ab7 100644 --- a/source4/dsdb/schema/schema_set.c +++ b/source4/dsdb/schema/schema_set.c @@ -241,7 +241,8 @@ static void dsdb_setup_attribute_shortcuts(struct ldb_context *ldb, struct dsdb_ continue; } /* handle attributes with a linkID but no backlink */ - if (dsdb_attribute_by_linkID(schema, attribute->linkID) == NULL) { + if ((attribute->linkID & 1) == 0 && + dsdb_attribute_by_linkID(schema, attribute->linkID + 1) == NULL) { attribute->one_way_link = true; continue; } -- Samba Shared Repository