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xen/pvcalls: implement listen command

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Call inet_listen to implement the listen command.

Signed-off-by: Stefano Stabellini <[email protected]>
Reviewed-by: Boris Ostrovsky <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
CC: [email protected]
CC: [email protected]
Signed-off-by: Boris Ostrovsky <[email protected]>
This commit is contained in:
Stefano Stabellini 2017-07-06 11:01:06 -07:00 • committed by Boris Ostrovsky
commit 8ce3f7626f
1 changed files with 21 additions and 0 deletions
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21
drivers/xen/pvcalls-back.c
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@ -356,6 +356,27 @@ out:
static int pvcalls_back_listen(struct xenbus_device *dev,
struct xen_pvcalls_request *req)
{
struct pvcalls_fedata *fedata;
int ret = -EINVAL;
struct sockpass_mapping *map;
struct xen_pvcalls_response *rsp;
fedata = dev_get_drvdata(&dev->dev);
down(&fedata->socket_lock);
map = radix_tree_lookup(&fedata->socketpass_mappings, req->u.listen.id);
up(&fedata->socket_lock);
if (map == NULL)
goto out;
ret = inet_listen(map->sock, req->u.listen.backlog);
out:
rsp = RING_GET_RESPONSE(&fedata->ring, fedata->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 0;
}