SECURITY_ATTRIBUTES 예제 코드

예제 코드 입니다. 해석은 알아서.. ㅋㅋ


#include <windows.h>
#include <stdio.h>
#include <aclapi.h>

void main()
{

    DWORD dwRes, dwDisposition;
    PSID pEveryoneSID = NULL, pAdminSID = NULL;
    PACL pACL = NULL;
    PSECURITY_DESCRIPTOR pSD = NULL;
    EXPLICIT_ACCESS ea[2];
    SID_IDENTIFIER_AUTHORITY SIDAuthWorld =
            SECURITY_WORLD_SID_AUTHORITY;
    SID_IDENTIFIER_AUTHORITY SIDAuthNT = SECURITY_NT_AUTHORITY;
    SECURITY_ATTRIBUTES sa;
    LONG lRes;
    HKEY hkSub = NULL;

    // Create a well-known SID for the Everyone group.
    if(!AllocateAndInitializeSid(&SIDAuthWorld, 1,
                     SECURITY_WORLD_RID,
                     0, 0, 0, 0, 0, 0, 0,
                     &pEveryoneSID))
    {
        printf(“AllocateAndInitializeSid Error %un”, GetLastError());
        goto Cleanup;
    }

    // Initialize an EXPLICIT_ACCESS structure for an ACE.
    // The ACE will allow Everyone read access to the key.
    ZeroMemory(&ea, 2 * sizeof(EXPLICIT_ACCESS));
    ea[0].grfAccessPermissions = KEY_READ;
    ea[0].grfAccessMode = SET_ACCESS;
    ea[0].grfInheritance= NO_INHERITANCE;
    ea[0].Trustee.TrusteeForm = TRUSTEE_IS_SID;
    ea[0].Trustee.TrusteeType = TRUSTEE_IS_WELL_KNOWN_GROUP;
    ea[0].Trustee.ptstrName  = (LPTSTR) pEveryoneSID;

    // Create a SID for the BUILTINAdministrators group.
    if(! AllocateAndInitializeSid(&SIDAuthNT, 2,
                     SECURITY_BUILTIN_DOMAIN_RID,
                     DOMAIN_ALIAS_RID_ADMINS,
                     0, 0, 0, 0, 0, 0,
                     &pAdminSID))
    {
        printf(“AllocateAndInitializeSid Error %un”, GetLastError());
        goto Cleanup;
    }

    // Initialize an EXPLICIT_ACCESS structure for an ACE.
    // The ACE will allow the Administrators group full access to
    // the key.
    ea[1].grfAccessPermissions = KEY_ALL_ACCESS;
    ea[1].grfAccessMode = SET_ACCESS;
    ea[1].grfInheritance= NO_INHERITANCE;
    ea[1].Trustee.TrusteeForm = TRUSTEE_IS_SID;
    ea[1].Trustee.TrusteeType = TRUSTEE_IS_GROUP;
    ea[1].Trustee.ptstrName  = (LPTSTR) pAdminSID;

    // Create a new ACL that contains the new ACEs.
    dwRes = SetEntriesInAcl(2, ea, NULL, &pACL);
    if (ERROR_SUCCESS != dwRes)
    {
        printf(“SetEntriesInAcl Error %un”, GetLastError());
        goto Cleanup;
    }

    // Initialize a security descriptor. 
    pSD = (PSECURITY_DESCRIPTOR) LocalAlloc(LPTR,
                             SECURITY_DESCRIPTOR_MIN_LENGTH);
    if (NULL == pSD)
    {
        printf(“LocalAlloc Error %un”, GetLastError());
        goto Cleanup;
    }
 
    if (!InitializeSecurityDescriptor(pSD,
            SECURITY_DESCRIPTOR_REVISION))
    { 
        printf(“InitializeSecurityDescriptor Error %un”,
                                GetLastError());
        goto Cleanup;
    }
 
    // Add the ACL to the security descriptor.
    if (!SetSecurityDescriptorDacl(pSD,
            TRUE,     // bDaclPresent flag  
            pACL,
            FALSE))   // not a default DACL
    { 
        printf(“SetSecurityDescriptorDacl Error %un”,
                GetLastError());
        goto Cleanup;
    }

    // Initialize a security attributes structure.
    sa.nLength = sizeof (SECURITY_ATTRIBUTES);
    sa.lpSecurityDescriptor = pSD;
    sa.bInheritHandle = FALSE;

    // Use the security attributes to set the security descriptor
    // when you create a key.
    lRes = RegCreateKeyEx(HKEY_CURRENT_USER, “mykey”, 0, “”, 0,
            KEY_READ | KEY_WRITE, &sa, &hkSub, &dwDisposition);
    printf(“RegCreateKeyEx result %un”, lRes );

Cleanup:

    if (pEveryoneSID)
        FreeSid(pEveryoneSID);
    if (pAdminSID)
        FreeSid(pAdminSID);
    if (pACL)
        LocalFree(pACL);
    if (pSD)
        LocalFree(pSD);
    if (hkSub)
        RegCloseKey(hkSub);

    return;

}

출처 : http://msdn.microsoft.com/en-us/library/aa446595(VS.85).aspx