return ac->curstep->fn(ac);
}
- /* we exit the samldb module here */
- /* If someone set an ares to forward controls and response back to the caller, use them */
+ /* We exit the samldb module here. If someone set an "ares" to forward
+ * controls and response back to the caller, use them. */
if (ac->ares) {
return ldb_module_done(ac->req, ac->ares->controls,
ac->ares->response, LDB_SUCCESS);
/* sAMAccountName handling */
-static int samldb_generate_sAMAccountName(struct ldb_context *ldb, struct ldb_message *msg)
+static int samldb_generate_sAMAccountName(struct ldb_context *ldb,
+ struct ldb_message *msg)
{
char *name;
name = ldb_msg_find_attr_as_string(ac->msg, "sAMAccountName", NULL);
if (name == NULL) {
- return ldb_operr(ldb);
+ /* The "sAMAccountName" cannot be nothing */
+ ldb_set_errstring(ldb,
+ "samldb: Empty account names aren't allowed!");
+ return LDB_ERR_CONSTRAINT_VIOLATION;
}
- ret = samdb_search_count(ldb, NULL, "(sAMAccountName=%s)",
+ ret = samdb_search_count(ldb, ac, NULL, "(sAMAccountName=%s)",
ldb_binary_encode_string(ac, name));
if ((ret < 0) || (ret > 1)) {
return ldb_operr(ldb);
}
if (ret == 1) {
+ ldb_asprintf_errstring(ldb,
+ "samldb: Account name (sAMAccountName) '%s' already in use!",
+ name);
return LDB_ERR_ENTRY_ALREADY_EXISTS;
}
/*
see if a krbtgt_number is available
*/
-static bool samldb_krbtgtnumber_available(struct samldb_ctx *ac, unsigned krbtgt_number)
+static bool samldb_krbtgtnumber_available(struct samldb_ctx *ac,
+ uint32_t krbtgt_number)
{
TALLOC_CTX *tmp_ctx = talloc_new(ac);
struct ldb_result *res;
- const char *attrs[] = { NULL };
+ const char *no_attrs[] = { NULL };
int ret;
- ret = dsdb_module_search(ac->module, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
- attrs, DSDB_FLAG_NEXT_MODULE,
- "msDC-SecondaryKrbTgtNumber=%u", krbtgt_number);
+ ret = dsdb_module_search(ac->module, tmp_ctx, &res, NULL,
+ LDB_SCOPE_SUBTREE, no_attrs,
+ DSDB_FLAG_NEXT_MODULE,
+ "(msDC-SecondaryKrbTgtNumber=%u)",
+ krbtgt_number);
if (ret == LDB_SUCCESS && res->count == 0) {
talloc_free(tmp_ctx);
return true;
return LDB_ERR_OTHER;
found:
- ret = ldb_msg_add_empty(ac->msg, "msDS-SecondaryKrbTgtNumber", LDB_FLAG_INTERNAL_DISABLE_VALIDATION, NULL);
+ ret = ldb_msg_add_empty(ac->msg, "msDS-SecondaryKrbTgtNumber",
+ LDB_FLAG_INTERNAL_DISABLE_VALIDATION, NULL);
if (ret != LDB_SUCCESS) {
return ldb_operr(ldb);
}
return ldb_operr(ldb);
}
- ret = ldb_msg_add_fmt(ac->msg, "sAMAccountName", "krbtgt_%u", krbtgt_number);
+ ret = ldb_msg_add_fmt(ac->msg, "sAMAccountName", "krbtgt_%u",
+ krbtgt_number);
if (ret != LDB_SUCCESS) {
return ldb_operr(ldb);
}
- newpass = generate_random_password(ac, 128, 255);
+ newpass = generate_random_password(ac->msg, 128, 255);
if (newpass == NULL) {
return ldb_operr(ldb);
}
ret = dsdb_module_search(ac->module, ac, &res,
ac->dn, LDB_SCOPE_BASE, no_attrs,
- DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT | DSDB_FLAG_NEXT_MODULE,
+ DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT
+ | DSDB_FLAG_NEXT_MODULE,
"(objectClass=classSchema)");
if (ret == LDB_ERR_NO_SUCH_OBJECT) {
/* Don't be pricky when the DN doesn't exist if we have the */
schema_dn = ldb_get_schema_basedn(ldb);
/* replicated update should always go through */
- if (ldb_request_get_control(ac->req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
+ if (ldb_request_get_control(ac->req,
+ DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
return LDB_SUCCESS;
}
schemaFlagsEx = ldb_msg_find_attr_as_uint(msg, "schemaFlagsEx", 0);
searchFlags = ldb_msg_find_attr_as_uint(msg, "searchFlags", 0);
- rodc_filtered_flags = (SEARCH_FLAG_RODC_ATTRIBUTE | SEARCH_FLAG_CONFIDENTIAL);
+ rodc_filtered_flags = (SEARCH_FLAG_RODC_ATTRIBUTE
+ | SEARCH_FLAG_CONFIDENTIAL);
if ((schemaFlagsEx & SCHEMA_FLAG_ATTR_IS_CRITICAL) &&
((searchFlags & rodc_filtered_flags) == rodc_filtered_flags)) {
if (!ldb_msg_find_element(ac->msg, "lDAPDisplayName")) {
/* the RDN has prefix "CN" */
ret = ldb_msg_add_string(ac->msg, "lDAPDisplayName",
- samdb_cn_to_lDAPDisplayName(ac,
- (const char *) rdn_value->data));
+ samdb_cn_to_lDAPDisplayName(ac->msg,
+ (const char *) rdn_value->data));
if (ret != LDB_SUCCESS) {
ldb_oom(ldb);
return ret;
* caller. Use the entry DN for it. */
ac->dn = ac->msg->dn;
- ret = samdb_msg_add_string(ldb, ac->msg, ac->msg,
- "defaultObjectCategory",
- ldb_dn_get_linearized(ac->dn));
+ ret = ldb_msg_add_string(ac->msg, "defaultObjectCategory",
+ ldb_dn_alloc_linearized(ac->msg, ac->dn));
if (ret != LDB_SUCCESS) {
ldb_oom(ldb);
return ret;
/* the RDN has prefix "CN" */
ret = ldb_msg_add_string(ac->msg, "lDAPDisplayName",
samdb_cn_to_lDAPDisplayName(ac->msg,
- (const char *) rdn_value->data));
+ (const char *) rdn_value->data));
if (ret != LDB_SUCCESS) {
ldb_oom(ldb);
return ret;
/* do not allow to mark an attributeSchema as RODC filtered if it
* is system-critical */
if (check_rodc_critical_attribute(ac->msg)) {
- ldb_asprintf_errstring(ldb, "Refusing schema add of %s - cannot combine critical attribute with RODC filtering",
+ ldb_asprintf_errstring(ldb,
+ "samldb: refusing schema add of %s - cannot combine critical attribute with RODC filtering",
ldb_dn_get_linearized(ac->msg->dn));
return LDB_ERR_UNWILLING_TO_PERFORM;
}
(const char *)ldb_dn_get_rdn_val(ac->msg->dn)->data);
if (sid == NULL) {
ldb_set_errstring(ldb,
- "No valid SID found in "
- "ForeignSecurityPrincipal CN!");
+ "samldb: No valid SID found in ForeignSecurityPrincipal CN!");
return LDB_ERR_CONSTRAINT_VIOLATION;
}
if (! samldb_msg_add_sid(ac->msg, "objectSid", sid)) {
static int samldb_schema_info_update(struct samldb_ctx *ac)
{
- WERROR werr;
+ int ret;
struct ldb_context *ldb;
struct dsdb_schema *schema;
/* replicated update should always go through */
- if (ldb_request_get_control(ac->req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
+ if (ldb_request_get_control(ac->req,
+ DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
return LDB_SUCCESS;
}
return ldb_operr(ldb);
}
- werr = dsdb_module_schema_info_update(ac->module, schema, DSDB_FLAG_NEXT_MODULE);
- if (!W_ERROR_IS_OK(werr)) {
- ldb_debug_set(ldb, LDB_DEBUG_FATAL,
- "samldb_schema_info_update: "
- "dsdb_module_schema_info_update failed with %s",
- win_errstr(werr));
- DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
- return ldb_operr(ldb);
+ ret = dsdb_module_schema_info_update(ac->module, schema,
+ DSDB_FLAG_NEXT_MODULE);
+ if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb,
+ "samldb_schema_info_update: dsdb_module_schema_info_update failed with %s",
+ ldb_errstring(ldb));
+ return ret;
}
return LDB_SUCCESS;
el = ldb_msg_find_element(ac->msg, "sAMAccountType");
if (el != NULL) {
ldb_set_errstring(ldb,
- "samldb: sAMAccountType must not be specified!");
+ "samldb: sAMAccountType must not be specified!");
return LDB_ERR_UNWILLING_TO_PERFORM;
}
sid = samdb_result_dom_sid(ac, ac->msg, "objectSid");
if ((sid != NULL) && (!dsdb_module_am_system(ac->module)) &&
(ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID) == NULL)) {
- ldb_asprintf_errstring(ldb, "No SID may be specified in user/group modifications for %s",
- ldb_dn_get_linearized(ac->msg->dn));
+ ldb_set_errstring(ldb,
+ "samldb: objectSid must not be specified!");
return LDB_ERR_UNWILLING_TO_PERFORM;
}
struct ldb_result *res;
struct ldb_message_element *el;
struct ldb_message *msg;
- uint32_t rid;
- struct dom_sid *sid;
+ uint32_t prev_rid, new_rid;
+ struct dom_sid *prev_sid, *new_sid;
struct ldb_dn *prev_prim_group_dn, *new_prim_group_dn;
int ret;
+ el = dsdb_get_single_valued_attr(ac->msg, "primaryGroupID");
+ if (el == NULL) {
+ /* we are not affected */
+ return LDB_SUCCESS;
+ }
+
/* Fetch informations from the existing object */
ret = ldb_search(ldb, ac, &res, ac->msg->dn, LDB_SCOPE_BASE, attrs,
if (ret != LDB_SUCCESS) {
return ret;
}
+ if (res->count != 1) {
+ return ldb_operr(ldb);
+ }
/* Finds out the DN of the old primary group */
- rid = ldb_msg_find_attr_as_uint(res->msgs[0], "primaryGroupID", (uint32_t) -1);
- if (rid == (uint32_t) -1) {
+ prev_rid = ldb_msg_find_attr_as_uint(res->msgs[0], "primaryGroupID",
+ (uint32_t) -1);
+ if (prev_rid == (uint32_t) -1) {
/* User objects do always have a mandatory "primaryGroupID"
* attribute. If this doesn't exist then the object is of the
* wrong type. This is the exact Windows error code */
return LDB_ERR_OBJECT_CLASS_VIOLATION;
}
- sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
- if (sid == NULL) {
- return ldb_operr(ldb);
- }
-
- prev_prim_group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSid=%s)",
- ldap_encode_ndr_dom_sid(ac, sid));
- if (prev_prim_group_dn == NULL) {
+ prev_sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), prev_rid);
+ if (prev_sid == NULL) {
return ldb_operr(ldb);
}
- /* Finds out the DN of the new primary group */
+ /* Finds out the DN of the new primary group
+ * Notice: in order to parse the primary group ID correctly we create
+ * a temporary message here. */
- rid = ldb_msg_find_attr_as_uint(ac->msg, "primaryGroupID", (uint32_t) -1);
- if (rid == (uint32_t) -1) {
+ msg = ldb_msg_new(ac->msg);
+ if (msg == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+ ret = ldb_msg_add(msg, el, 0);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ new_rid = ldb_msg_find_attr_as_uint(msg, "primaryGroupID", (uint32_t) -1);
+ talloc_free(msg);
+ if (new_rid == (uint32_t) -1) {
/* we aren't affected of any primary group change */
return LDB_SUCCESS;
}
- sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
- if (sid == NULL) {
+ if (prev_rid == new_rid) {
+ return LDB_SUCCESS;
+ }
+
+ prev_prim_group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSid=%s)",
+ ldap_encode_ndr_dom_sid(ac, prev_sid));
+ if (prev_prim_group_dn == NULL) {
+ return ldb_operr(ldb);
+ }
+
+ new_sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), new_rid);
+ if (new_sid == NULL) {
return ldb_operr(ldb);
}
new_prim_group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSid=%s)",
- ldap_encode_ndr_dom_sid(ac, sid));
+ ldap_encode_ndr_dom_sid(ac, new_sid));
if (new_prim_group_dn == NULL) {
/* Here we know if the specified new primary group candidate is
* valid or not. */
return LDB_ERR_UNWILLING_TO_PERFORM;
}
- /* Only update the "member" attributes when we really do have a change */
- if (ldb_dn_compare(new_prim_group_dn, prev_prim_group_dn) != 0) {
- /* We need to be already a normal member of the new primary
- * group in order to be successful. */
- el = samdb_find_attribute(ldb, res->msgs[0], "memberOf",
- ldb_dn_get_linearized(new_prim_group_dn));
- if (el == NULL) {
- return LDB_ERR_UNWILLING_TO_PERFORM;
- }
+ /* We need to be already a normal member of the new primary
+ * group in order to be successful. */
+ el = samdb_find_attribute(ldb, res->msgs[0], "memberOf",
+ ldb_dn_get_linearized(new_prim_group_dn));
+ if (el == NULL) {
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+
+ /* Remove the "member" attribute on the new primary group */
+ msg = ldb_msg_new(ac->msg);
+ if (msg == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+ msg->dn = new_prim_group_dn;
+
+ ret = samdb_msg_add_delval(ldb, msg, msg, "member",
+ ldb_dn_get_linearized(ac->msg->dn));
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ ret = dsdb_module_modify(ac->module, msg, DSDB_FLAG_NEXT_MODULE);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ talloc_free(msg);
+
+ /* Add a "member" attribute for the previous primary group */
+ msg = ldb_msg_new(ac->msg);
+ if (msg == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+ msg->dn = prev_prim_group_dn;
+
+ ret = samdb_msg_add_addval(ldb, msg, msg, "member",
+ ldb_dn_get_linearized(ac->msg->dn));
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
- /* Remove the "member" attribute on the new primary group */
- msg = talloc_zero(ac, struct ldb_message);
- msg->dn = new_prim_group_dn;
+ ret = dsdb_module_modify(ac->module, msg, DSDB_FLAG_NEXT_MODULE);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ talloc_free(msg);
- ret = samdb_msg_add_delval(ldb, ac, msg, "member",
- ldb_dn_get_linearized(ac->msg->dn));
+ return LDB_SUCCESS;
+}
+
+static int samldb_prim_group_trigger(struct samldb_ctx *ac)
+{
+ int ret;
+
+ if (ac->req->operation == LDB_ADD) {
+ ret = samldb_prim_group_set(ac);
+ } else {
+ ret = samldb_prim_group_change(ac);
+ }
+
+ return ret;
+}
+
+static int samldb_user_account_control_change(struct samldb_ctx *ac)
+{
+ struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
+ uint32_t user_account_control, account_type;
+ struct ldb_message_element *el;
+ struct ldb_message *tmp_msg;
+ int ret;
+
+ el = dsdb_get_single_valued_attr(ac->msg, "userAccountControl");
+ if (el == NULL) {
+ /* we are not affected */
+ return LDB_SUCCESS;
+ }
+
+ /* Create a temporary message for fetching the "userAccountControl" */
+ tmp_msg = ldb_msg_new(ac->msg);
+ if (tmp_msg == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+ ret = ldb_msg_add(tmp_msg, el, 0);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ user_account_control = ldb_msg_find_attr_as_uint(tmp_msg,
+ "userAccountControl",
+ 0);
+ talloc_free(tmp_msg);
+
+ /* Temporary duplicate accounts aren't allowed */
+ if ((user_account_control & UF_TEMP_DUPLICATE_ACCOUNT) != 0) {
+ return LDB_ERR_OTHER;
+ }
+
+ account_type = ds_uf2atype(user_account_control);
+ if (account_type == 0) {
+ ldb_set_errstring(ldb, "samldb: Unrecognized account type!");
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+ ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg, "sAMAccountType",
+ account_type);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ el = ldb_msg_find_element(ac->msg, "sAMAccountType");
+ el->flags = LDB_FLAG_MOD_REPLACE;
+
+ if (user_account_control
+ & (UF_SERVER_TRUST_ACCOUNT | UF_PARTIAL_SECRETS_ACCOUNT)) {
+ ret = samdb_msg_add_string(ldb, ac->msg, ac->msg,
+ "isCriticalSystemObject", "TRUE");
if (ret != LDB_SUCCESS) {
return ret;
}
+ el = ldb_msg_find_element(ac->msg,
+ "isCriticalSystemObject");
+ el->flags = LDB_FLAG_MOD_REPLACE;
+ }
- ret = dsdb_module_modify(ac->module, msg, DSDB_FLAG_NEXT_MODULE);
+ if (!ldb_msg_find_element(ac->msg, "primaryGroupID")) {
+ uint32_t rid = ds_uf2prim_group_rid(user_account_control);
+ ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
+ "primaryGroupID", rid);
if (ret != LDB_SUCCESS) {
return ret;
}
+ el = ldb_msg_find_element(ac->msg,
+ "primaryGroupID");
+ el->flags = LDB_FLAG_MOD_REPLACE;
+ }
- /* Add a "member" attribute for the previous primary group */
- msg = talloc_zero(ac, struct ldb_message);
- msg->dn = prev_prim_group_dn;
+ return LDB_SUCCESS;
+}
- ret = samdb_msg_add_addval(ldb, ac, msg, "member",
- ldb_dn_get_linearized(ac->msg->dn));
- if (ret != LDB_SUCCESS) {
- return ret;
- }
+static int samldb_group_type_change(struct samldb_ctx *ac)
+{
+ struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
+ uint32_t group_type, old_group_type, account_type;
+ struct ldb_message_element *el;
+ struct ldb_message *tmp_msg;
+ int ret;
- ret = dsdb_module_modify(ac->module, msg, DSDB_FLAG_NEXT_MODULE);
- if (ret != LDB_SUCCESS) {
- return ret;
+ el = dsdb_get_single_valued_attr(ac->msg, "groupType");
+ if (el == NULL) {
+ /* we are not affected */
+ return LDB_SUCCESS;
+ }
+
+ /* Create a temporary message for fetching the "groupType" */
+ tmp_msg = ldb_msg_new(ac->msg);
+ if (tmp_msg == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+ ret = ldb_msg_add(tmp_msg, el, 0);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ group_type = ldb_msg_find_attr_as_uint(tmp_msg, "groupType", 0);
+ talloc_free(tmp_msg);
+
+ old_group_type = samdb_search_uint(ldb, ac, 0, ac->msg->dn,
+ "groupType", NULL);
+ if (old_group_type == 0) {
+ return ldb_operr(ldb);
+ }
+
+ /* Group type switching isn't so easy as it seems: We can only
+ * change in this directions: global <-> universal <-> local
+ * On each step also the group type itself
+ * (security/distribution) is variable. */
+
+ switch (group_type) {
+ case GTYPE_SECURITY_GLOBAL_GROUP:
+ case GTYPE_DISTRIBUTION_GLOBAL_GROUP:
+ /* change to "universal" allowed */
+ if ((old_group_type == GTYPE_SECURITY_DOMAIN_LOCAL_GROUP) ||
+ (old_group_type == GTYPE_DISTRIBUTION_DOMAIN_LOCAL_GROUP)) {
+ return LDB_ERR_UNWILLING_TO_PERFORM;
}
+ break;
+
+ case GTYPE_SECURITY_UNIVERSAL_GROUP:
+ case GTYPE_DISTRIBUTION_UNIVERSAL_GROUP:
+ /* each change allowed */
+ break;
+
+ case GTYPE_SECURITY_DOMAIN_LOCAL_GROUP:
+ case GTYPE_DISTRIBUTION_DOMAIN_LOCAL_GROUP:
+ /* change to "universal" allowed */
+ if ((old_group_type == GTYPE_SECURITY_GLOBAL_GROUP) ||
+ (old_group_type == GTYPE_DISTRIBUTION_GLOBAL_GROUP)) {
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+ break;
+
+ case GTYPE_SECURITY_BUILTIN_LOCAL_GROUP:
+ default:
+ /* we don't allow this "groupType" values */
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ break;
+ }
+
+ account_type = ds_gtype2atype(group_type);
+ if (account_type == 0) {
+ ldb_set_errstring(ldb, "samldb: Unrecognized account type!");
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+ ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg, "sAMAccountType",
+ account_type);
+ if (ret != LDB_SUCCESS) {
+ return ret;
}
+ el = ldb_msg_find_element(ac->msg, "sAMAccountType");
+ el->flags = LDB_FLAG_MOD_REPLACE;
return LDB_SUCCESS;
}
-static int samldb_prim_group_trigger(struct samldb_ctx *ac)
+static int samldb_sam_accountname_check(struct samldb_ctx *ac)
{
+ struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
+ const char *no_attrs[] = { NULL };
+ struct ldb_result *res;
+ const char *sam_accountname, *enc_str;
+ struct ldb_message_element *el;
+ struct ldb_message *tmp_msg;
int ret;
- if (ac->req->operation == LDB_ADD) {
- ret = samldb_prim_group_set(ac);
- } else {
- ret = samldb_prim_group_change(ac);
+ el = dsdb_get_single_valued_attr(ac->msg, "sAMAccountName");
+ if (el == NULL) {
+ /* we are not affected */
+ return LDB_SUCCESS;
}
- return ret;
+ /* Create a temporary message for fetching the "sAMAccountName" */
+ tmp_msg = ldb_msg_new(ac->msg);
+ if (tmp_msg == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+ ret = ldb_msg_add(tmp_msg, el, 0);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ sam_accountname = talloc_steal(ac,
+ ldb_msg_find_attr_as_string(tmp_msg, "sAMAccountName", NULL));
+ talloc_free(tmp_msg);
+
+ if (sam_accountname == NULL) {
+ /* The "sAMAccountName" cannot be nothing */
+ ldb_set_errstring(ldb,
+ "samldb: Empty account names aren't allowed!");
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+
+ enc_str = ldb_binary_encode_string(ac, sam_accountname);
+ if (enc_str == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+
+ /* Make sure that a "sAMAccountName" is only used once */
+
+ ret = ldb_search(ldb, ac, &res, NULL, LDB_SCOPE_SUBTREE, no_attrs,
+ "(sAMAccountName=%s)", enc_str);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ if (res->count > 1) {
+ return ldb_operr(ldb);
+ } else if (res->count == 1) {
+ if (ldb_dn_compare(res->msgs[0]->dn, ac->msg->dn) != 0) {
+ ldb_asprintf_errstring(ldb,
+ "samldb: Account name (sAMAccountName) '%s' already in use!",
+ sam_accountname);
+ return LDB_ERR_ENTRY_ALREADY_EXISTS;
+ }
+ }
+ talloc_free(res);
+
+ return LDB_SUCCESS;
}
static int samldb_member_check(struct samldb_ctx *ac)
{
- struct ldb_context *ldb;
+ static const char * const attrs[] = { "objectSid", "member", NULL };
+ struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
struct ldb_message_element *el;
- struct ldb_dn *member_dn, *group_dn;
+ struct ldb_dn *member_dn;
uint32_t prim_group_rid;
struct dom_sid *sid;
- unsigned int i;
+ struct ldb_result *res;
+ struct dom_sid *group_sid;
+ unsigned int i, j;
+ int cnt;
+ int ret;
- ldb = ldb_module_get_ctx(ac->module);
+ /* Fetch informations from the existing object */
- el = ldb_msg_find_element(ac->msg, "member");
- if (el == NULL) {
- /* we aren't affected */
+ ret = ldb_search(ldb, ac, &res, ac->msg->dn, LDB_SCOPE_BASE, attrs,
+ NULL);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ if (res->count != 1) {
+ return ldb_operr(ldb);
+ }
+
+ group_sid = samdb_result_dom_sid(res, res->msgs[0], "objectSid");
+ if (group_sid == NULL) {
+ return ldb_operr(ldb);
+ }
+
+ /* We've to walk over all modification entries and consider the "member"
+ * ones. */
+ for (i = 0; i < ac->msg->num_elements; i++) {
+ if (ldb_attr_cmp(ac->msg->elements[i].name, "member") != 0) {
+ continue;
+ }
+
+ el = &ac->msg->elements[i];
+ for (j = 0; j < el->num_values; j++) {
+ struct ldb_message_element *mo;
+
+ member_dn = ldb_dn_from_ldb_val(ac, ldb,
+ &el->values[j]);
+ if (!ldb_dn_validate(member_dn)) {
+ return ldb_operr(ldb);
+ }
+
+ /* The "member" attribute can be modified with the
+ * following restrictions (beside a valid DN):
+ *
+ * - "add" operations can only be performed when the
+ * member still doesn't exist - if not then return
+ * ERR_ENTRY_ALREADY_EXISTS (not
+ * ERR_ATTRIBUTE_OR_VALUE_EXISTS!)
+ * - "delete" operations can only be performed when the
+ * member does exist - if not then return
+ * ERR_UNWILLING_TO_PERFORM (not
+ * ERR_NO_SUCH_ATTRIBUTE!)
+ * - primary group check
+ */
+ mo = samdb_find_attribute(ldb, res->msgs[0], "member",
+ ldb_dn_get_linearized(member_dn));
+ if (mo == NULL) {
+ cnt = 0;
+ } else {
+ cnt = 1;
+ }
+
+ if ((cnt > 0) && (LDB_FLAG_MOD_TYPE(el->flags)
+ == LDB_FLAG_MOD_ADD)) {
+ return LDB_ERR_ENTRY_ALREADY_EXISTS;
+ }
+ if ((cnt == 0) && LDB_FLAG_MOD_TYPE(el->flags)
+ == LDB_FLAG_MOD_DELETE) {
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+
+ /* Denies to add "member"s to groups which are primary
+ * ones for them - in this case return
+ * ERR_ENTRY_ALREADY_EXISTS. */
+
+ prim_group_rid = samdb_search_uint(ldb, ac,
+ (uint32_t) -1,
+ member_dn,
+ "primaryGroupID",
+ NULL);
+ if (prim_group_rid == (uint32_t) -1) {
+ /* the member hasn't to be a user account ->
+ * therefore no check needed in this case. */
+ continue;
+ }
+
+ sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb),
+ prim_group_rid);
+ if (sid == NULL) {
+ return ldb_operr(ldb);
+ }
+
+ if (dom_sid_equal(group_sid, sid)) {
+ return LDB_ERR_ENTRY_ALREADY_EXISTS;
+ }
+ }
+ }
+
+ return LDB_SUCCESS;
+}
+
+/* This trigger adapts the "servicePrincipalName" attributes if the
+ * "dNSHostName" and/or "sAMAccountName" attribute change(s) */
+static int samldb_service_principal_names_change(struct samldb_ctx *ac)
+{
+ struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
+ struct ldb_message_element *el = NULL, *el2 = NULL;
+ struct ldb_message *msg;
+ const char *attrs[] = { "servicePrincipalName", NULL };
+ struct ldb_result *res;
+ const char *dns_hostname = NULL, *old_dns_hostname = NULL,
+ *sam_accountname = NULL, *old_sam_accountname = NULL;
+ unsigned int i;
+ int ret;
+
+ el = dsdb_get_single_valued_attr(ac->msg, "dNSHostName");
+ el2 = dsdb_get_single_valued_attr(ac->msg, "sAMAccountName");
+ if ((el == NULL) && (el2 == NULL)) {
+ /* we are not affected */
return LDB_SUCCESS;
}
- for (i = 0; i < el->num_values; i++) {
- /* Denies to add "member"s to groups which are primary ones
- * for them */
- member_dn = ldb_dn_from_ldb_val(ac, ldb, &el->values[i]);
- if (!ldb_dn_validate(member_dn)) {
- return ldb_operr(ldb);
+ /* Create a temporary message for fetching the "dNSHostName" */
+ if (el != NULL) {
+ msg = ldb_msg_new(ac->msg);
+ if (msg == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+ ret = ldb_msg_add(msg, el, 0);
+ if (ret != LDB_SUCCESS) {
+ return ret;
}
+ dns_hostname = talloc_steal(ac,
+ ldb_msg_find_attr_as_string(msg, "dNSHostName", NULL));
+ talloc_free(msg);
- prim_group_rid = samdb_search_uint(ldb, ac, (uint32_t) -1,
- member_dn, "primaryGroupID",
- NULL);
- if (prim_group_rid == (uint32_t) -1) {
- /* the member hasn't to be a user account -> therefore
- * no check needed in this case. */
- continue;
+ old_dns_hostname = samdb_search_string(ldb, ac, ac->msg->dn,
+ "dNSHostName", NULL);
+ }
+
+ /* Create a temporary message for fetching the "sAMAccountName" */
+ if (el2 != NULL) {
+ char *tempstr, *tempstr2;
+
+ msg = ldb_msg_new(ac->msg);
+ if (msg == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+ ret = ldb_msg_add(msg, el2, 0);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ tempstr = talloc_strdup(ac,
+ ldb_msg_find_attr_as_string(msg, "sAMAccountName", NULL));
+ talloc_free(msg);
+
+ tempstr2 = talloc_strdup(ac,
+ samdb_search_string(ldb, ac, ac->msg->dn, "sAMAccountName", NULL));
+
+ /* The "sAMAccountName" needs some additional trimming: we need
+ * to remove the trailing "$"s if they exist. */
+ if ((tempstr != NULL) && (tempstr[0] != '\0') &&
+ (tempstr[strlen(tempstr) - 1] == '$')) {
+ tempstr[strlen(tempstr) - 1] = '\0';
}
+ if ((tempstr2 != NULL) && (tempstr2[0] != '\0') &&
+ (tempstr2[strlen(tempstr2) - 1] == '$')) {
+ tempstr2[strlen(tempstr2) - 1] = '\0';
+ }
+ sam_accountname = tempstr;
+ old_sam_accountname = tempstr2;
+ }
- sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb),
- prim_group_rid);
- if (sid == NULL) {
- return ldb_operr(ldb);
+ if (old_dns_hostname == NULL) {
+ /* we cannot change when the old name is unknown */
+ dns_hostname = NULL;
+ }
+ if ((old_dns_hostname != NULL) && (dns_hostname != NULL) &&
+ (strcasecmp(old_dns_hostname, dns_hostname) == 0)) {
+ /* The "dNSHostName" didn't change */
+ dns_hostname = NULL;
+ }
+
+ if (old_sam_accountname == NULL) {
+ /* we cannot change when the old name is unknown */
+ sam_accountname = NULL;
+ }
+ if ((old_sam_accountname != NULL) && (sam_accountname != NULL) &&
+ (strcasecmp(old_sam_accountname, sam_accountname) == 0)) {
+ /* The "sAMAccountName" didn't change */
+ sam_accountname = NULL;
+ }
+
+ if ((dns_hostname == NULL) && (sam_accountname == NULL)) {
+ /* Well, there are informations missing (old name(s)) or the
+ * names didn't change. We've nothing to do and can exit here */
+ return LDB_SUCCESS;
+ }
+
+ /* Potential "servicePrincipalName" changes in the same request have to
+ * be handled before the update (Windows behaviour). */
+ el = ldb_msg_find_element(ac->msg, "servicePrincipalName");
+ if (el != NULL) {
+ msg = ldb_msg_new(ac->msg);
+ if (msg == NULL) {
+ return ldb_module_oom(ac->module);
}
+ msg->dn = ac->msg->dn;
- group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSid=%s)",
- ldap_encode_ndr_dom_sid(ac, sid));
- if (group_dn == NULL) {
- return ldb_operr(ldb);
+ do {
+ ret = ldb_msg_add(msg, el, el->flags);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ ldb_msg_remove_element(ac->msg, el);
+
+ el = ldb_msg_find_element(ac->msg,
+ "servicePrincipalName");
+ } while (el != NULL);
+
+ ret = dsdb_module_modify(ac->module, msg,
+ DSDB_FLAG_NEXT_MODULE);
+ if (ret != LDB_SUCCESS) {
+ return ret;
}
+ talloc_free(msg);
+ }
- if (ldb_dn_compare(group_dn, ac->msg->dn) == 0) {
- return LDB_ERR_ENTRY_ALREADY_EXISTS;
+ /* Fetch the "servicePrincipalName"s if any */
+ ret = ldb_search(ldb, ac, &res, ac->msg->dn, LDB_SCOPE_BASE, attrs,
+ NULL);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ if ((res->count != 1) || (res->msgs[0]->num_elements > 1)) {
+ return ldb_operr(ldb);
+ }
+
+ if (res->msgs[0]->num_elements == 1) {
+ /* Yes, we do have "servicePrincipalName"s. First we update them
+ * locally, that means we do always substitute the current
+ * "dNSHostName" with the new one and/or "sAMAccountName"
+ * without "$" with the new one and then we append this to the
+ * modification request (Windows behaviour). */
+
+ for (i = 0; i < res->msgs[0]->elements[0].num_values; i++) {
+ char *old_str, *new_str, *pos;
+ const char *tok;
+
+ old_str = (char *)
+ res->msgs[0]->elements[0].values[i].data;
+
+ new_str = talloc_strdup(ac->msg,
+ strtok_r(old_str, "/", &pos));
+ if (new_str == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+
+ while ((tok = strtok_r(NULL, "/", &pos)) != NULL) {
+ if ((dns_hostname != NULL) &&
+ (strcasecmp(tok, old_dns_hostname) == 0)) {
+ tok = dns_hostname;
+ }
+ if ((sam_accountname != NULL) &&
+ (strcasecmp(tok, old_sam_accountname) == 0)) {
+ tok = sam_accountname;
+ }
+
+ new_str = talloc_asprintf(ac->msg, "%s/%s",
+ new_str, tok);
+ if (new_str == NULL) {
+ return ldb_module_oom(ac->module);
+ }
+ }
+
+ ret = ldb_msg_add_string(ac->msg,
+ "servicePrincipalName",
+ new_str);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
}
+
+ el = ldb_msg_find_element(ac->msg, "servicePrincipalName");
+ el->flags = LDB_FLAG_MOD_REPLACE;
}
+ talloc_free(res);
+
return LDB_SUCCESS;
}
struct ldb_message_element *el, *el2;
bool modified = false;
int ret;
- uint32_t account_type;
if (ldb_dn_is_special(req->op.mod.message->dn)) {
/* do not manipulate our control entries */
ldb = ldb_module_get_ctx(module);
+ /* make sure that "objectSid" is not specified */
+ el = ldb_msg_find_element(req->op.mod.message, "objectSid");
+ if (el != NULL) {
+ ldb_set_errstring(ldb,
+ "samldb: objectSid must not be specified!");
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
/* make sure that "sAMAccountType" is not specified */
el = ldb_msg_find_element(req->op.mod.message, "sAMAccountType");
if (el != NULL) {
ldb_set_errstring(ldb,
- "samldb: sAMAccountType must not be specified!");
+ "samldb: sAMAccountType must not be specified!");
return LDB_ERR_UNWILLING_TO_PERFORM;
}
/* make sure that "isCriticalSystemObject" is not specified */
if (el != NULL) {
if (ldb_request_get_control(req, LDB_CONTROL_RELAX_OID) == NULL) {
ldb_set_errstring(ldb,
- "samldb: isCriticalSystemObject must not be specified!");
+ "samldb: isCriticalSystemObject must not be specified!");
return LDB_ERR_UNWILLING_TO_PERFORM;
}
}
/* msDS-IntId is not allowed to be modified
* except when modification comes from replication */
if (ldb_msg_find_element(req->op.mod.message, "msDS-IntId")) {
- if (!ldb_request_get_control(req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
+ if (!ldb_request_get_control(req,
+ DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
return LDB_ERR_CONSTRAINT_VIOLATION;
}
}
return ldb_operr(ldb);
}
- el = ldb_msg_find_element(ac->msg, "groupType");
- if (el && (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
- uint32_t group_type, old_group_type;
-
- modified = true;
-
- group_type = ldb_msg_find_attr_as_uint(ac->msg, "groupType", 0);
- old_group_type = samdb_search_uint(ldb, ac, 0, ac->msg->dn,
- "groupType", NULL);
- if (old_group_type == 0) {
- return ldb_operr(ldb);
- }
-
- /* Group type switching isn't so easy as it seems: We can only
- * change in this directions: global <-> universal <-> local
- * On each step also the group type itself
- * (security/distribution) is variable. */
-
- switch (group_type) {
- case GTYPE_SECURITY_GLOBAL_GROUP:
- case GTYPE_DISTRIBUTION_GLOBAL_GROUP:
- /* change to "universal" allowed */
- if ((old_group_type == GTYPE_SECURITY_DOMAIN_LOCAL_GROUP) ||
- (old_group_type == GTYPE_DISTRIBUTION_DOMAIN_LOCAL_GROUP)) {
- return LDB_ERR_UNWILLING_TO_PERFORM;
- }
- break;
-
- case GTYPE_SECURITY_UNIVERSAL_GROUP:
- case GTYPE_DISTRIBUTION_UNIVERSAL_GROUP:
- /* each change allowed */
- break;
-
- case GTYPE_SECURITY_DOMAIN_LOCAL_GROUP:
- case GTYPE_DISTRIBUTION_DOMAIN_LOCAL_GROUP:
- /* change to "universal" allowed */
- if ((old_group_type == GTYPE_SECURITY_GLOBAL_GROUP) ||
- (old_group_type == GTYPE_DISTRIBUTION_GLOBAL_GROUP)) {
- return LDB_ERR_UNWILLING_TO_PERFORM;
- }
- break;
-
- case GTYPE_SECURITY_BUILTIN_LOCAL_GROUP:
- default:
- /* we don't allow this "groupType" values */
- return LDB_ERR_UNWILLING_TO_PERFORM;
- break;
- }
-
- account_type = ds_gtype2atype(group_type);
- if (account_type == 0) {
- ldb_set_errstring(ldb, "samldb: Unrecognized account type!");
- return LDB_ERR_UNWILLING_TO_PERFORM;
- }
- ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
- "sAMAccountType",
- account_type);
+ el = ldb_msg_find_element(ac->msg, "primaryGroupID");
+ if (el != NULL) {
+ ret = samldb_prim_group_change(ac);
if (ret != LDB_SUCCESS) {
return ret;
}
- el2 = ldb_msg_find_element(ac->msg, "sAMAccountType");
- el2->flags = LDB_FLAG_MOD_REPLACE;
- }
- el = ldb_msg_find_element(ac->msg, "groupType");
- if (el && (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_DELETE)) {
- return LDB_ERR_UNWILLING_TO_PERFORM;
}
- el = ldb_msg_find_element(ac->msg, "primaryGroupID");
- if (el && (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
+ el = ldb_msg_find_element(ac->msg, "userAccountControl");
+ if (el != NULL) {
modified = true;
-
- ret = samldb_prim_group_change(ac);
+ ret = samldb_user_account_control_change(ac);
if (ret != LDB_SUCCESS) {
return ret;
}
}
- el = ldb_msg_find_element(ac->msg, "primaryGroupID");
- if (el && (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_DELETE)) {
- return LDB_ERR_UNWILLING_TO_PERFORM;
- }
-
- el = ldb_msg_find_element(ac->msg, "userAccountControl");
- if (el && (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
- uint32_t user_account_control;
+ el = ldb_msg_find_element(ac->msg, "groupType");
+ if (el != NULL) {
modified = true;
-
- user_account_control = ldb_msg_find_attr_as_uint(ac->msg,
- "userAccountControl",
- 0);
-
- /* Temporary duplicate accounts aren't allowed */
- if ((user_account_control & UF_TEMP_DUPLICATE_ACCOUNT) != 0) {
- return LDB_ERR_OTHER;
- }
-
- account_type = ds_uf2atype(user_account_control);
- if (account_type == 0) {
- ldb_set_errstring(ldb, "samldb: Unrecognized account type!");
- return LDB_ERR_UNWILLING_TO_PERFORM;
- }
- ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
- "sAMAccountType",
- account_type);
+ ret = samldb_group_type_change(ac);
if (ret != LDB_SUCCESS) {
return ret;
}
- el2 = ldb_msg_find_element(ac->msg, "sAMAccountType");
- el2->flags = LDB_FLAG_MOD_REPLACE;
-
- if (user_account_control & (UF_SERVER_TRUST_ACCOUNT | UF_PARTIAL_SECRETS_ACCOUNT)) {
- ret = samdb_msg_add_string(ldb, ac->msg, ac->msg,
- "isCriticalSystemObject",
- "TRUE");
- if (ret != LDB_SUCCESS) {
- return ret;
- }
- el2 = ldb_msg_find_element(ac->msg,
- "isCriticalSystemObject");
- el2->flags = LDB_FLAG_MOD_REPLACE;
- }
-
- if (!ldb_msg_find_element(ac->msg, "primaryGroupID")) {
- uint32_t rid = ds_uf2prim_group_rid(user_account_control);
+ }
- ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
- "primaryGroupID", rid);
- if (ret != LDB_SUCCESS) {
- return ret;
- }
- el2 = ldb_msg_find_element(ac->msg,
- "primaryGroupID");
- el2->flags = LDB_FLAG_MOD_REPLACE;
+ el = ldb_msg_find_element(ac->msg, "sAMAccountName");
+ if (el != NULL) {
+ ret = samldb_sam_accountname_check(ac);
+ if (ret != LDB_SUCCESS) {
+ return ret;
}
}
- el = ldb_msg_find_element(ac->msg, "userAccountControl");
- if (el && (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_DELETE)) {
- return LDB_ERR_UNWILLING_TO_PERFORM;
- }
el = ldb_msg_find_element(ac->msg, "member");
- if (el && el->flags & (LDB_FLAG_MOD_ADD|LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
+ if (el != NULL) {
ret = samldb_member_check(ac);
if (ret != LDB_SUCCESS) {
return ret;
}
}
+ el = ldb_msg_find_element(ac->msg, "dNSHostName");
+ el2 = ldb_msg_find_element(ac->msg, "sAMAccountName");
+ if ((el != NULL) || (el2 != NULL)) {
+ modified = true;
+ ret = samldb_service_principal_names_change(ac);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ }
+
if (modified) {
struct ldb_request *child_req;
}
/* Deny delete requests from groups which are primary ones */
- count = samdb_search_count(ldb, NULL,
+ count = samdb_search_count(ldb, ac, NULL,
"(&(primaryGroupID=%u)(objectClass=user))",
rid);
if (count < 0) {
struct dsdb_fsmo_extended_op *exop;
int ret;
- exop = talloc_get_type(req->op.extended.data, struct dsdb_fsmo_extended_op);
+ exop = talloc_get_type(req->op.extended.data,
+ struct dsdb_fsmo_extended_op);
if (!exop) {
- ldb_debug(ldb, LDB_DEBUG_FATAL, "samldb_extended_allocate_rid_pool: invalid extended data\n");
+ ldb_set_errstring(ldb,
+ "samldb_extended_allocate_rid_pool: invalid extended data");
return LDB_ERR_PROTOCOL_ERROR;
}
}
-_PUBLIC_ const struct ldb_module_ops ldb_samldb_module_ops = {
+static const struct ldb_module_ops ldb_samldb_module_ops = {
.name = "samldb",
.add = samldb_add,
.modify = samldb_modify,
.extended = samldb_extended
};
+
+int ldb_samldb_module_init(const char *version)
+{
+ LDB_MODULE_CHECK_VERSION(version);
+ return ldb_register_module(&ldb_samldb_module_ops);
+}
git.samba.org / metze / samba / wip.git / blobdiff