[PATCH v2 10/18] xen/pvcalls: implement listen command

From: Stefano Stabellini
Date: Fri May 19 2017 - 19:25:59 EST


Call inet_listen to implement the listen command.

Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
CC: boris.ostrovsky@xxxxxxxxxx
CC: jgross@xxxxxxxx
---
drivers/xen/pvcalls-back.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
index d3278bd..de82bf5 100644
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -347,7 +347,26 @@ static int pvcalls_back_bind(struct xenbus_device *dev,
static int pvcalls_back_listen(struct xenbus_device *dev,
struct xen_pvcalls_request *req)
{
- return 0;
+ struct pvcalls_back_priv *priv;
+ int ret = -EINVAL;
+ struct sockpass_mapping *map;
+ struct xen_pvcalls_response *rsp;
+
+ priv = dev_get_drvdata(&dev->dev);
+
+ map = radix_tree_lookup(&priv->socketpass_mappings, req->u.listen.id);
+ if (map == NULL)
+ goto out;
+
+ ret = inet_listen(map->sock, req->u.listen.backlog);
+
+out:
+ rsp = RING_GET_RESPONSE(&priv->ring, priv->ring.rsp_prod_pvt++);
+ rsp->req_id = req->req_id;
+ rsp->cmd = req->cmd;
+ rsp->u.listen.id = req->u.listen.id;
+ rsp->ret = ret;
+ return ret;
}

static int pvcalls_back_accept(struct xenbus_device *dev,
--
1.9.1