Re: [Qemu-devel] [PATCHv9 0/10] slirp: Adding IPv6 support to Qemu -net user mode

[Jason Wang]

On 02/23/2016 03:28 AM, Samuel Thibault wrote:
> Hello,
>
> This is another respin of IPv6 in Qemu -net user mode.
>
>
> These patches add ICMPv6, NDP, make UDP and TCP compatible with IPv6, and add
> TFTP over IPv6.
>

Thanks a lot for the patches. Looks good overall, but see some issues:

- the series does not build on w32:
In file included from ./slirp/slirp.h:126:0,
                 from stubs/slirp.c:3:
./slirp/ip6.h:9:24: fatal error: netinet/in.h: No such file or directory
compilation terminated.
- Lots of checkpatch warnings, let's try to silent it.
- The patches do not apply to master cleanly.
- I expects a unit-test for this. You may want to have a look at the
pxe-test in tests/, I think it could be extended to test ipv6 slirp somehow.

And also some nits, see individual patches.

> Difference with version 8 is:
> - Fix freeing random number generator
> - Fix coding style
> - Fix prefix lengths in in6_equal_dns macro
>
> Here is a summary of the patches:
> Guillaume Subiron (7):
>   slirp: Adding IPv6, ICMPv6 Echo and NDP autoconfiguration
>   slirp: Adding IPv6 UDP support
>   slirp: Factorizing tcpiphdr structure with an union
>   slirp: Generalizing and neutralizing various TCP functions before
>     adding IPv6 stuff
>   slirp: Reindent after refactoring
>   slirp: Handle IPv6 in TCP functions
>   slirp: Adding IPv6 address for DNS relay
>
> Thomas Huth (1):
>   slirp: Add IPv6 support to the TFTP code
>
> Yann Bordenave (2):
>   slirp: Adding ICMPv6 error sending
>   qapi-schema, qemu-options & slirp: Adding Qemu options for IPv6
>     addresses
>
>  net/net.c           |  31 ++++
>  net/slirp.c         |  69 ++++++++-
>  qapi-schema.json    |  40 +++--
>  qemu-options.hx     |  18 ++-
>  slirp/Makefile.objs |   6 +-
>  slirp/cksum.c       |  25 ++++
>  slirp/if.c          |   2 +-
>  slirp/if.h          |   4 +-
>  slirp/ip6.h         | 142 ++++++++++++++++++
>  slirp/ip6_icmp.c    | 411 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++
>  slirp/ip6_icmp.h    | 213 +++++++++++++++++++++++++++
>  slirp/ip6_input.c   |  73 ++++++++++
>  slirp/ip6_output.c  |  38 +++++
>  slirp/ip_icmp.c     |  12 +-
>  slirp/ip_icmp.h     |   4 +-
>  slirp/ip_input.c    |  10 +-
>  slirp/libslirp.h    |   8 +-
>  slirp/mbuf.c        |   4 +-
>  slirp/ndp_table.c   |  84 +++++++++++
>  slirp/slirp.c       |  81 +++++++++--
>  slirp/slirp.h       |  43 +++++-
>  slirp/socket.c      |  54 ++++++-
>  slirp/socket.h      |  13 ++
>  slirp/tcp.h         |   2 +
>  slirp/tcp_input.c   | 181 ++++++++++++++++-------
>  slirp/tcp_output.c  |  51 +++++--
>  slirp/tcp_subr.c    | 114 +++++++++++----
>  slirp/tcp_timer.c   |   3 +-
>  slirp/tcpip.h       |  40 ++++-
>  slirp/tftp.c        | 133 +++++++++--------
>  slirp/tftp.h        |   7 +-
>  slirp/udp.c         |  19 ++-
>  slirp/udp.h         |   5 +
>  slirp/udp6.c        | 167 +++++++++++++++++++++
>  34 files changed, 1877 insertions(+), 230 deletions(-)
>  create mode 100644 slirp/ip6.h
>  create mode 100644 slirp/ip6_icmp.c
>  create mode 100644 slirp/ip6_icmp.h
>  create mode 100644 slirp/ip6_input.c
>  create mode 100644 slirp/ip6_output.c
>  create mode 100644 slirp/ndp_table.c
>  create mode 100644 slirp/udp6.c
>