2 * Copyright (C) 2007 Luca Bigliardi (shammash@artha.org).
3 * Licensed under the GPL.
8 #include <libvdeplug.h>
10 #include "kern_util.h"
11 #include "kern_constants.h"
14 #include "um_malloc.h"
17 #define MAX_PACKET (ETH_MAX_PACKET + ETH_HEADER_OTHER)
19 static int vde_user_init(void *data, void *dev)
21 struct vde_data *pri = data;
27 conn = vde_open(pri->vde_switch, pri->descr, pri->args);
31 printk(UM_KERN_ERR "vde_user_init: vde_open failed, "
32 "errno = %d\n", errno);
36 printk(UM_KERN_INFO "vde backend - connection opened\n");
43 static int vde_user_open(void *data)
45 struct vde_data *pri = data;
47 if (pri->conn != NULL)
48 return vde_datafd(pri->conn);
50 printk(UM_KERN_WARNING "vde_open - we have no VDECONN to open");
54 static void vde_remove(void *data)
56 struct vde_data *pri = data;
58 if (pri->conn != NULL) {
59 printk(UM_KERN_INFO "vde backend - closing connection\n");
67 printk(UM_KERN_WARNING "vde_remove - we have no VDECONN to remove");
70 static int vde_set_mtu(int mtu, void *data)
75 const struct net_user_info vde_user_info = {
76 .init = vde_user_init,
77 .open = vde_user_open,
80 .set_mtu = vde_set_mtu,
82 .delete_address = NULL,
83 .max_packet = MAX_PACKET - ETH_HEADER_OTHER
86 void vde_init_libstuff(struct vde_data *vpri, struct vde_init *init)
88 struct vde_open_args *args;
90 vpri->args = kmalloc(sizeof(struct vde_open_args), UM_GFP_KERNEL);
91 if (vpri->args == NULL) {
92 printk(UM_KERN_ERR "vde_init_libstuff - vde_open_args"
99 args->port = init->port;
100 args->group = init->group;
101 args->mode = init->mode ? init->mode : 0700;
103 args->port ? printk(UM_KERN_INFO "port %d", args->port) :
104 printk(UM_KERN_INFO "undefined port");
107 int vde_user_read(void *conn, void *buf, int len)
109 VDECONN *vconn = conn;
115 rv = vde_recv(vconn, buf, len, 0);
127 int vde_user_write(void *conn, void *buf, int len)
129 VDECONN *vconn = conn;
134 return vde_send(vconn, buf, len, 0);