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* autoload.cc: added RegGetKeySecurity()

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* security.cc (get_nt_object_attribute): use RegGetKeySecurity() for
	performance.
This commit is contained in:
Corinna Vinschen
2003-03-27 09:40:25 +00:00
parent 2f4be7367e
commit 98b36ec8ed
3 changed files with 72 additions and 11 deletions
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76
winsup/cygwin/security.cc
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@ -1443,19 +1443,73 @@ get_nt_object_attribute (HANDLE handle, SE_OBJECT_TYPE object_type,
PSECURITY_DESCRIPTOR psd = NULL;
cygpsid owner_sid;
cygpsid group_sid;
PACL acl;
PACL acl = NULL;
if (ERROR_SUCCESS != GetSecurityInfo (handle, object_type,
DACL_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION |
OWNER_SECURITY_INFORMATION,
(PSID *) &owner_sid,
(PSID *) &group_sid,
&acl, NULL, &psd))
if (object_type == SE_REGISTRY_KEY)
{
__seterrno ();
debug_printf ("GetSecurityInfo %E");
return -1;
// use different code for registry handles, for performance reasons
char sd_buf[4096];
PSECURITY_DESCRIPTOR psd2 = (PSECURITY_DESCRIPTOR) & sd_buf[0];
DWORD len = sizeof (sd_buf);
if (ERROR_SUCCESS != RegGetKeySecurity ((HKEY) handle,
DACL_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION |
OWNER_SECURITY_INFORMATION,
psd2, &len))
{
__seterrno ();
debug_printf ("RegGetKeySecurity %E");
return -1;
}
BOOL bDaclPresent;
BOOL bDaclDefaulted;
if (!GetSecurityDescriptorDacl (psd2,
&bDaclPresent, &acl, &bDaclDefaulted))
{
__seterrno ();
debug_printf ("GetSecurityDescriptorDacl %E");
return -1;
}
if (!bDaclPresent)
{
acl = NULL;
}
BOOL bGroupDefaulted;
if (!GetSecurityDescriptorGroup (psd2,
(PSID *) & group_sid,
&bGroupDefaulted))
{
__seterrno ();
debug_printf ("GetSecurityDescriptorGroup %E");
return -1;
}
BOOL bOwnerDefaulted;
if (!GetSecurityDescriptorOwner (psd2,
(PSID *) & owner_sid,
&bOwnerDefaulted))
{
__seterrno ();
debug_printf ("GetSecurityDescriptorOwner %E");
return -1;
}
}
else
{
if (ERROR_SUCCESS != GetSecurityInfo (handle, object_type,
DACL_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION |
OWNER_SECURITY_INFORMATION,
(PSID *) & owner_sid,
(PSID *) & group_sid,
&acl, NULL, &psd))
{
__seterrno ();
debug_printf ("GetSecurityInfo %E");
return -1;
}
}
__uid32_t uid;