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SubjectRe: [PATCH v5 06/13] xen/pvcalls: implement bind command
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On 10/06/2017 08:30 PM, Stefano Stabellini wrote:
> Send PVCALLS_BIND to the backend. Introduce a new structure, part of
> struct sock_mapping, to store information specific to passive sockets.
>
> Introduce a status field to keep track of the status of the passive
> socket.
>
> Signed-off-by: Stefano Stabellini <stefano@aporeto.com>
> CC: boris.ostrovsky@oracle.com
> CC: jgross@suse.com
> ---
> drivers/xen/pvcalls-front.c | 66 +++++++++++++++++++++++++++++++++++++++++++++
> drivers/xen/pvcalls-front.h | 3 +++
> 2 files changed, 69 insertions(+)
>
> diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c
> index 7c9261b..4cafd9b 100644
> --- a/drivers/xen/pvcalls-front.c
> +++ b/drivers/xen/pvcalls-front.c
> @@ -71,6 +71,13 @@ struct sock_mapping {
>
> wait_queue_head_t inflight_conn_req;
> } active;
> + struct {
> + /* Socket status */
> +#define PVCALLS_STATUS_UNINITALIZED 0
> +#define PVCALLS_STATUS_BIND 1
> +#define PVCALLS_STATUS_LISTEN 2
> + uint8_t status;
> + } passive;
> };
> };
>
> @@ -347,6 +354,65 @@ int pvcalls_front_connect(struct socket *sock, struct sockaddr *addr,
> return ret;
> }
>
> +int pvcalls_front_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
> +{
> + struct pvcalls_bedata *bedata;
> + struct sock_mapping *map = NULL;
> + struct xen_pvcalls_request *req;
> + int notify, req_id, ret;
> +
> + if (addr->sa_family != AF_INET || sock->type != SOCK_STREAM)
> + return -ENOTSUPP;
> +
> + pvcalls_enter();
> + if (!pvcalls_front_dev) {
> + pvcalls_exit();
> + return -ENOTCONN;

The connect patch returns -ENETUNREACH here. Is there a deliberate
distinction between these cases?

Other than that

Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>



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