SMB3 POSIX and deleting files with FILE_ATTRIBUTE_READONLY

[Ralph Boehme]

On 4/10/25 7:23 AM, Tom Talpey wrote:
> On 4/9/2025 9:06 PM, Ralph Boehme wrote:
>> On 4/9/25 8:43 PM, Steve French wrote:
>>> On Wed, Apr 9, 2025 at 1:18 PM Ralph Boehme <slow at samba.org> wrote:
>>>> what should be the behavior with SMB3 POSIX when a POSIX client 
>>>> tries to
>>>> delete a file that has FILE_ATTRIBUTE_READONLY set?
>>>>
>>>> The major question that we must answer is, if this we would want to
>>>> allow for POSIX clients to ignore this in some way: either completely
>>>> ignore it on POSIX handles or first check if the handle has requested
>>>> and been granted WRITE_ATTRIBUTES access.
>>>
>>> I agree that to delete a file with READ_ONLY set should by default 
>>> require
>>> WRITE_ATTRIBUTES (and delete)
> 
> Since when does Posix require this??

Obviously it doesn't.

Let me try to ask it differently: do we want to relax Windows security 
model on a POSIX handle for this operation, even if we can build sane 
semantics into the protocol that doesn't require this?
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