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Re: [Qemu-devel] [PATCH v3 9/9] net: support to include ipv6 address by
From: |
Michael Roth |
Subject: |
Re: [Qemu-devel] [PATCH v3 9/9] net: support to include ipv6 address by brackets |
Date: |
Wed, 14 Mar 2012 10:38:41 -0500 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Wed, Mar 14, 2012 at 05:58:20PM +0800, Amos Kong wrote:
> On 14/03/12 03:47, Michael Roth wrote:
> >On Wed, Mar 07, 2012 at 06:48:57AM +0800, Amos Kong wrote:
> >>That method of representing an IPv6 address with a port is
> >
> >I'm not sure what "that" is referencing.
>
> 2312::8274:5200 (5200 is a port)
>
> >I assumed the previous patch
> >but the representation seems to be the same?
>
> 2312::8274:5200
>
> [2312::8274]:5200
>
> The second one is better.
The commit message for the previous patch also uses "[2312::8274]:5200"
If that format wasn't supported till this patch you should fix up the
example in patch 8 to be "2312::8274:5200". Small nit, but it gives the
impression [host]:port was already supported in some form, which is all
the more confusing because [host]:port *is* already supported in some
form, depending on where you are in QEMU :)
>
> >>discouraged because of its ambiguity. Referencing to RFC5952,
> >>the recommended format is:
> >>
> >> [2312::8274]:5200
> >>
> >>For IPv6 brackets must be mandatory if you require a port.
> >>
> >>test status: Successed
> >>listen side: qemu-kvm .... -incoming tcp:[2312::8274]:5200
> >>client side: qemu-kvm ...
> >> (qemu) migrate -d tcp:[2312::8274]:5200
> >>
> >>Signed-off-by: Amos Kong<address@hidden>
> >>---
> >> net.c | 6 ++++++
> >> 1 files changed, 6 insertions(+), 0 deletions(-)
> >>
> >>diff --git a/net.c b/net.c
> >>index d6ce1fa..499ed1d 100644
> >>--- a/net.c
> >>+++ b/net.c
> >>@@ -88,6 +88,12 @@ static int get_str_sep(char *buf, int buf_size, const
> >>char **pp, int sep)
> >> if (!p1)
> >> return -1;
> >> len = p1 - p;
> >>+ /* remove brackets which includes hostname */
> >>+ if (*p == '['&& *(p1-1) == ']') {
> >>+ p += 1;
> >>+ len -= 2;
> >>+ }
> >
> >Sorry, looking again I guess net/slirp.c actually has it's own copy of
> >get_str_sep(), so modifying this doesn't look like it would break
> >anything currently.
>
> >It might cause some confusion though :). And I think
> >the special handling for brackets should be done in
> >parse_host_port_info() since get_str_sep() is pretty generically named.
>
> agree.
>
> >>+
> >> p1++;
> >> if (buf_size> 0) {
> >> if (len> buf_size - 1)
> >>
> >>
>
> --
> Amos.
>
- Re: [Qemu-devel] [PATCH v3 3/9] net: introduce tcp_client_start(), (continued)
- [Qemu-devel] [PATCH v3 4/9] net: use tcp_client_start for tcp client creation, Amos Kong, 2012/03/06
- [Qemu-devel] [PATCH v3 6/9] net: use getaddrinfo() in tcp_start_common, Amos Kong, 2012/03/06
- [Qemu-devel] [PATCH v3 7/9] net: introduce parse_host_port_info(), Amos Kong, 2012/03/06
- [Qemu-devel] [PATCH v3 5/9] net: refector tcp_*_start functions, Amos Kong, 2012/03/06
- [Qemu-devel] [PATCH v3 8/9] net: split hostname and service by last colon, Amos Kong, 2012/03/06
- [Qemu-devel] [PATCH v3 9/9] net: support to include ipv6 address by brackets, Amos Kong, 2012/03/06