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Commit fb029875 authored by Stefano Stabellini's avatar Stefano Stabellini Committed by Boris Ostrovsky
Browse files

xen/pvcalls: implement socket command 



Just reply with success to the other end for now. Delay the allocation
of the actual socket to bind and/or connect.

Signed-off-by: default avatarStefano Stabellini <stefano@aporeto.com>
Reviewed-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: default avatarJuergen Gross <jgross@suse.com>
CC: boris.ostrovsky@oracle.com
CC: jgross@suse.com
Signed-off-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
parent b1efa693

drivers/xen/pvcalls-back.c

+27 −0
Original line number Diff line number Diff line
@@ -12,12 +12,17 @@ 
 * GNU General Public License for more details.

 */



#include <linux/inet.h>

#include <linux/kthread.h>

#include <linux/list.h>

#include <linux/radix-tree.h>

#include <linux/module.h>

#include <linux/semaphore.h>

#include <linux/wait.h>

#include <net/sock.h>

#include <net/inet_common.h>

#include <net/inet_connection_sock.h>

#include <net/request_sock.h>



#include <xen/events.h>

#include <xen/grant_table.h>
@@ -52,6 +57,28 @@ struct pvcalls_fedata { 
static int pvcalls_back_socket(struct xenbus_device *dev,

		struct xen_pvcalls_request *req)

{

	struct pvcalls_fedata *fedata;

	int ret;

	struct xen_pvcalls_response *rsp;



	fedata = dev_get_drvdata(&dev->dev);



	if (req->u.socket.domain != AF_INET ||

	    req->u.socket.type != SOCK_STREAM ||

	    (req->u.socket.protocol != IPPROTO_IP &&

	     req->u.socket.protocol != AF_INET))

		ret = -EAFNOSUPPORT;

	else

		ret = 0;



	/* leave the actual socket allocation for later */



	rsp = RING_GET_RESPONSE(&fedata->ring, fedata->ring.rsp_prod_pvt++);

	rsp->req_id = req->req_id;

	rsp->cmd = req->cmd;

	rsp->u.socket.id = req->u.socket.id;

	rsp->ret = ret;



	return 0;

}