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2.2.46 SERVICE_SID_INFO

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The SERVICE_SID_INFO structure<16> defines the type of service security identifier (SID) associated with a service.

 typedef struct _SERVICE_SID_INFO {
   DWORD dwServiceSidType;
 } SERVICE_SID_INFO,
  *LPSERVICE_SID_INFO;

dwServiceSidType: The type of service SID. This MUST be one of the following values.

Value

Meaning

SERVICE_SID_TYPE_NONE

 0x00000000

No service SID.

SERVICE_SID_TYPE_RESTRICTED

 0x00000003

This type includes SERVICE_SID_TYPE_UNRESTRICTED. The service SID is also added to the restricted SID list of the process token. Three additional SIDs are added to the restricted SID list:

1. World SID S-1-1-0.

2. Service logon SID.

3. One access control entry (ACE) that allows GENERIC_ALL access for the service logon SID is also added to the service process token object.

If multiple services are hosted in the same process and one service has SERVICE_SID_TYPE_RESTRICTED, all services MUST have SERVICE_SID_TYPE_RESTRICTED.

SERVICE_SID_TYPE_UNRESTRICTED

 0x00000001

When the service process is created, the service SID is added to the service process token with the following attributes: SE_GROUP_ENABLED_BY_DEFAULT | SE_GROUP_OWNER.