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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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6
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,9 @@
2003-03-27 Joe Buehler <jhpb@draco.hekimian.com>
* autoload.cc: added RegGetKeySecurity()
* security.cc (get_nt_object_attribute): use RegGetKeySecurity() for
performance.
2003-03-25 Christopher Faylor <cgf@redhat.com>
Joe Buehler <jhpb@draco.hekimian.com>

1
winsup/cygwin/autoload.cc
View File

@ -375,6 +375,7 @@ LoadDLLfunc (SetSecurityDescriptorDacl, 16, advapi32)
LoadDLLfunc (SetSecurityDescriptorGroup, 12, advapi32)
LoadDLLfunc (SetSecurityDescriptorOwner, 12, advapi32)
LoadDLLfunc (SetTokenInformation, 16, advapi32)
LoadDLLfunc (RegGetKeySecurity, 16, advapi32)
LoadDLLfunc (NetApiBufferFree, 4, netapi32)
LoadDLLfuncEx (NetGetDCName, 12, netapi32, 1)

76
winsup/cygwin/security.cc
View File

@ -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;