Re: [Xen-devel] [DRAFT v2] XenSock protocol design document

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 13/07/16 16:47, Stefano Stabellini wrote:
> Hi all,
>
> This is the design document of the XenSock protocol. You can find
> prototypes of the Linux frontend and backend drivers here:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/sstabellini/xen.git xensock-2
>
> To use them, make sure to enable CONFIG_XENSOCK in your kernel config
> and add "xensock=1" to the command line of your DomU Linux kernel. You
> also need the toolstack to create the initial xenstore nodes for the
> protocol. To do that, please apply the attached patch to libxl (the
> patch is based on Xen 4.7.0-rc3) and add "xensock=1" to your DomU config
> file.

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 9e48199..478eb0a 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -120,6 +120,7 @@
 #include <linux/mroute.h>
 #endif
 #include <net/l3mdev.h>
+#include <net/xensock.h>
 
 
 /* The inetsw table contains everything that inet_create needs to
@@ -1775,6 +1776,11 @@ static int __init inet_init(void)
     for (r = &inetsw[0]; r < &inetsw[SOCK_MAX]; ++r)
         INIT_LIST_HEAD(r);
 
+    if (xensock) {
+        pr_info("Enabling xensock for AF_INET SOCK_STREAM\n");
+        inetsw_array[0].ops = &xensock_stream_ops;
+    }
+
     for (q = inetsw_array; q < &inetsw_array[INETSW_ARRAY_LEN]; ++q)
         inet_register_protosw(q);
 

I am curious as to how you plan to persuade Dave Miller to take this patch?

What is your planned mitigation for the fact that INET sockets stop
behaving like INET sockets.  Are there any plans for IPv6?

~Andrew

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel