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Re: gnumach RPC: get info about the calling task
From: |
Samuel Thibault |
Subject: |
Re: gnumach RPC: get info about the calling task |
Date: |
Sat, 16 Oct 2021 17:54:15 +0200 |
User-agent: |
NeoMutt/20170609 (1.8.3) |
Sergey Bugaev, le sam. 16 oct. 2021 14:27:01 +0300, a ecrit:
> On Sat, Oct 16, 2021 at 12:38 PM Joan Lledó <jlledom@mailfence.com> wrote:
> > The new interface needs to know about proxies, and if one range has been
> > mapped using a proxy, it must return the proxy and not the original object,
> > which could be used to bypass the proxy protection, that's why I needed a
> > way to lookup for used proxies from a task and an address.
>
> I don't think it should *ever* return the original object back. I'd
> rather it always made a new proxy that internally references the
> object and caps max_protection to that of the region.
Indeed, since it's the region that remembers which protection was
allowed, we need a proxy there to enforce them.
Samuel
- gnumach RPC: get info about the calling task, Joan Lledó, 2021/10/12
- Re: gnumach RPC: get info about the calling task, Sergey Bugaev, 2021/10/12
- Re: gnumach RPC: get info about the calling task, Samuel Thibault, 2021/10/12
- Re: gnumach RPC: get info about the calling task, Joan Lledó, 2021/10/16
- [PATCH] new interface: vm_pager, Joan Lledó, 2021/10/16
- Re: gnumach RPC: get info about the calling task, Sergey Bugaev, 2021/10/16
- Re: gnumach RPC: get info about the calling task, Sergey Bugaev, 2021/10/16
- Re: gnumach RPC: get info about the calling task,
Samuel Thibault <=
- Re: gnumach RPC: get info about the calling task, Sergey Bugaev, 2021/10/16
- Re: gnumach RPC: get info about the calling task, Joan Lledó, 2021/10/16
- Re: gnumach RPC: get info about the calling task, Joan Lledó, 2021/10/17
- Re: gnumach RPC: get info about the calling task, Samuel Thibault, 2021/10/17
- Re: gnumach RPC: get info about the calling task, Joan Lledó, 2021/10/17
- Re: gnumach RPC: get info about the calling task, Sergey Bugaev, 2021/10/17
- Re: gnumach RPC: get info about the calling task, Samuel Thibault, 2021/10/17
- Re: gnumach RPC: get info about the calling task, Joan Lledó, 2021/10/24
- [PATCH] new interface: memory_object_get_proxy, Joan Lledó, 2021/10/24
- Re: [PATCH] new interface: memory_object_get_proxy, Sergey Bugaev, 2021/10/24