184.108.40.206.4 Site Search
This step is skipped if Machine Role is equal to DsRole_RoleStandaloneWorkstation or DsRole_RoleStandaloneServer.
NULL for ComputerName.
If the method returns ERROR_NO_SITENAME, the remainder of this message MUST be skipped and the protocol sequence MUST continue at GPO Search (section 220.127.116.11.5) . The initial site named "Default-First-Site-Name" is documented in [MS-ADTS] section 18.104.22.168.2.1 that specifies the Site object. If the method returns any other nonzero error code, policy application MUST be terminated. If the method returns zero, then the DN of the configuration container of the domain MUST be searched for as follows:
An LDAP SearchRequest as specified in section 2.2.3 MUST be sent from the Client to the GP server, and the SearchResponse received MUST be verified to satisfy the specified requirements. The SearchResponse contains the configurationNamingContext attribute value. From this value and the SiteName value (the out parameter of the previous DsrGetSiteName method call), the site distinguished name (DN) MUST be computed by concatenating the strings "CN=", <the site name>, ",CN=Sites,", and <the DN of the configuration container>. This site DN MUST be used for the remainder of this message to retrieve the attributes of the site object.
If this message is invalid in any way, as specified in section 2.2.3, the entire Group Policy: Core Protocol policy application sequence MUST be terminated and an event SHOULD be logged using an implementation-specific mechanism.<29>
The site DN and Object type (GPLinkSite) MUST be appended to the end of the SOM list.