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Date: Fri, 19 May 2017 16:22:48 -0700 From: Stefano Stabellini <sstabellini@...nel.org> To: xen-devel@...ts.xen.org Cc: linux-kernel@...r.kernel.org, sstabellini@...nel.org, jgross@...e.com, boris.ostrovsky@...cle.com, Stefano Stabellini <stefano@...reto.com> Subject: [PATCH v2 07/18] 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@...reto.com> CC: boris.ostrovsky@...cle.com CC: jgross@...e.com --- drivers/xen/pvcalls-back.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c index 9dc8a28..fed54bf 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> @@ -55,7 +60,29 @@ struct pvcalls_back_priv { static int pvcalls_back_socket(struct xenbus_device *dev, struct xen_pvcalls_request *req) { - return 0; + struct pvcalls_back_priv *priv; + int ret; + struct xen_pvcalls_response *rsp; + + priv = dev_get_drvdata(&dev->dev); + + if (req->u.socket.domain != AF_INET || + req->u.socket.type != SOCK_STREAM || + (req->u.socket.protocol != 0 && + req->u.socket.protocol != AF_INET)) + ret = -EAFNOSUPPORT; + else + ret = 0; + + /* leave the actual socket allocation for later */ + + rsp = RING_GET_RESPONSE(&priv->ring, priv->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 ret; } static int pvcalls_back_connect(struct xenbus_device *dev, -- 1.9.1
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