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: Stefano Stabellini <stefano@aporeto.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
CC: boris.ostrovsky@oracle.com
CC: jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
index a92e81d..8f436e5 100644
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -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 @@
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;
}