From: Asias He <asias.hejun@gmail.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Stefan Hajnoczi <stefanha@gmail.com>,
Pekka Enberg <penberg@kernel.org>,
Cyrill Gorcunov <gorcunov@gmail.com>, Ingo Molnar <mingo@elte.hu>,
Sasha Levin <levinsasha928@gmail.com>,
Prasad Joshi <prasadjoshi124@gmail.com>,
kvm@vger.kernel.org
Subject: Re: [PATCH v2 00/31] Implement user mode network for kvm tools
Date: Fri, 01 Jul 2011 08:18:00 +0800 [thread overview]
Message-ID: <4E0D1238.3020506@gmail.com> (raw)
In-Reply-To: <4E0C96FF.4090801@codemonkey.ws>
On 06/30/2011 11:32 PM, Anthony Liguori wrote:
> On 06/30/2011 03:56 AM, Stefan Hajnoczi wrote:
>> On Thu, Jun 30, 2011 at 9:40 AM, Asias He<asias.hejun@gmail.com> wrote:
>>> uip stands for user mode {TCP,UDP}/IP. Currently, uip supports ARP,
>>> ICMP,
>>> IPV4, UDP, TCP. So any network protocols above UDP/TCP should work as
>>> well,
>>> e.g., HTTP, FTP, SSH, DNS.
>>
>> There is an existing uIP which might cause confusion, not sure if
>> you've seen it. First I thought you were using that :).
>>
>> http://en.wikipedia.org/wiki/UIP_(micro_IP)
>
> Is the primary motivation here to allow unprivileged guests with
> networking without providing unprivileged access to raw networking or
> just to make networking Just Work?
>
> We've explored various things in the past like using a fscap based
> helper to open tap devices which can help with the Just Works parts.
Does qemu use fscap?
>
> Usermode TCP/IP can be quite cumbersome for users as things like ping
> and ip6 won't work properly.
Yes, usermode TCP/IP do have limits. But it's more cumbersome for user
to setup bridge/nat thing with privileged networking. The network setup
is a headache for some users.
This patchset implements things like 'qemu -net user' without the slirp.
I just took at a look the LOC in qemu and uip.
qemu.git$ cat slirp/*.{c,h} net/slirp.{c,h}| wc -l
11514
kernel.git/tools/kvm$ cat uip/*.{c,h} include/kvm/uip.h | wc -l
1312
--
Best Regards,
Asias He
next prev parent reply other threads:[~2011-07-01 0:19 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-30 8:40 [PATCH v2 00/31] Implement user mode network for kvm tools Asias He
2011-06-30 8:40 ` [PATCH v2 01/31] kvm tools: Introduce ethernet frame buffer system for uip Asias He
2011-06-30 8:40 ` [PATCH v2 02/31] kvm tools: Add ARP support " Asias He
2011-06-30 8:40 ` [PATCH v2 03/31] kvm tools: Add IPV4 " Asias He
2011-06-30 8:40 ` [PATCH v2 04/31] kvm tools: Implement IP checksum " Asias He
2011-06-30 8:40 ` [PATCH v2 05/31] kvm tools: Add ICMP support " Asias He
2011-06-30 8:40 ` [PATCH v2 06/31] kvm tools: Introduce struct uip_udp to present UDP package Asias He
2011-06-30 8:40 ` [PATCH v2 07/31] kvm tools: Introduce struct uip_pseudo_hdr to present UDP pseudo header Asias He
2011-06-30 8:40 ` [PATCH v2 08/31] kvm tools: Introduce struct uip_udp_socket Asias He
2011-06-30 8:40 ` [PATCH v2 09/31] kvm tools: Add two helpers to return UDP {header, total} length Asias He
2011-06-30 8:40 ` [PATCH v2 10/31] kvm tools: Add helper to return ethernet header length Asias He
2011-06-30 8:40 ` [PATCH v2 11/31] kvm tools: Implement uip_csum_udp() to calculate UDP checksum Asias He
2011-06-30 8:41 ` [PATCH v2 12/31] kvm tools: Add UDP support for uip Asias He
2011-07-01 11:46 ` Ingo Molnar
2011-07-01 15:24 ` Asias He
2011-06-30 8:41 ` [PATCH v2 13/31] kvm tools: Introduce struct uip_tcp to present TCP package Asias He
2011-06-30 8:41 ` [PATCH v2 14/31] kvm tools: Introduce struct uip_tcp_socket Asias He
2011-06-30 8:41 ` [PATCH v2 15/31] kvm tools: Add helpers to return TCP {header, total, payload} length Asias He
2011-06-30 8:41 ` [PATCH v2 16/31] kvm tools: Add helper to return start address of TCP payload Asias He
2011-06-30 8:41 ` [PATCH v2 17/31] kvm tools: Add helpers to test whether SYN or FIN bit is set Asias He
2011-06-30 8:41 ` [PATCH v2 18/31] kvm tools: Add helper to allocate and get TCP initial sequence number Asias He
2011-06-30 8:41 ` [PATCH v2 19/31] kvm tools: Implement uip_csum_tcp() to calculate TCP checksum Asias He
2011-06-30 8:41 ` [PATCH v2 20/31] kvm tools: Add TCP support for uip Asias He
2011-06-30 8:41 ` [PATCH v2 21/31] kvm tools: Introduce uip_init() " Asias He
2011-06-30 8:41 ` [PATCH v2 22/31] kvm tools: Introduce uip_tx() " Asias He
2011-06-30 8:41 ` [PATCH v2 23/31] kvm tools: Introduce uip_rx() " Asias He
2011-06-30 8:41 ` [PATCH v2 24/31] kvm tools: Add MACRO for user and tap mode for virtio net Asias He
2011-06-30 8:41 ` [PATCH v2 25/31] kvm tools: Reanme net_device to net_dev Asias He
2011-06-30 8:41 ` [PATCH v2 26/31] kvm tools: Introduce -net {user, tap, none} options for virtio net Asias He
2011-06-30 8:41 ` [PATCH v2 27/31] kvm tools: Change default guest MAC address to 00:15:15:15:15:15 Asias He
2011-06-30 8:41 ` [PATCH v2 28/31] kvm tools: Make virtio net work with user mode network Asias He
2011-06-30 8:41 ` [PATCH v2 29/31] kvm tools: Make default network mode to user mode Asias He
2011-06-30 8:41 ` [PATCH v2 30/31] kvm tools: Make default host ip address to 192.168.33.1 Asias He
2011-06-30 8:41 ` [PATCH v2 31/31] kvm tools: Introduce struct net_dev_operations Asias He
2011-06-30 8:56 ` [PATCH v2 00/31] Implement user mode network for kvm tools Stefan Hajnoczi
2011-06-30 15:32 ` Anthony Liguori
2011-07-01 0:18 ` Asias He [this message]
2011-07-01 11:53 ` Ingo Molnar
2011-07-01 13:46 ` Alexander Graf
2011-07-02 9:45 ` Pekka Enberg
2011-07-02 10:30 ` Ingo Molnar
2011-07-02 11:19 ` Alexander Graf
2011-07-02 11:27 ` Pekka Enberg
2011-07-02 12:31 ` Alexander Graf
2011-07-03 19:42 ` Ingo Molnar
2011-07-03 22:15 ` Alexander Graf
2011-07-04 9:11 ` Ingo Molnar
2011-07-04 9:30 ` Alexander Graf
2011-07-04 9:43 ` Ingo Molnar
2011-07-02 9:42 ` Pekka Enberg
2011-06-30 23:38 ` Asias He
2011-07-01 16:50 ` Stefan Hajnoczi
2011-07-01 20:36 ` Pekka Enberg
2011-07-02 3:49 ` Asias He
2011-07-02 9:02 ` Ingo Molnar
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