diff options
| author | Stefano Stabellini <sstabellini@kernel.org> | 2017-07-06 20:01:00 +0200 |
|---|---|---|
| committer | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2017-08-31 15:45:55 +0200 |
| commit | fb0298754ab79f0aca1a8162f9aeb5b097c0a1b1 (patch) | |
| tree | 38e546309b7fcde0767b198554016e5c68e2793a /drivers/xen | |
| parent | xen/pvcalls: handle commands from the frontend (diff) | |
| download | linux-fb0298754ab79f0aca1a8162f9aeb5b097c0a1b1.tar.xz linux-fb0298754ab79f0aca1a8162f9aeb5b097c0a1b1.zip | |
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>
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/pvcalls-back.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c index a92e81d25f07..8f436e51053a 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 @@ 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; } |