2 * Copyright (C) 2007 Luca Bigliardi (shammash@artha.org).
3 * Licensed under the GPL.
8 #include <libvdeplug.h>
9 #include "kern_constants.h"
11 #include "um_malloc.h"
15 #define MAX_PACKET (ETH_MAX_PACKET + ETH_HEADER_OTHER)
17 static int vde_user_init(void *data, void *dev)
19 struct vde_data *pri = data;
25 conn = vde_open(pri->vde_switch, pri->descr, pri->args);
29 printk(UM_KERN_ERR "vde_user_init: vde_open failed, "
30 "errno = %d\n", errno);
34 printk(UM_KERN_INFO "vde backend - connection opened\n");
41 static int vde_user_open(void *data)
43 struct vde_data *pri = data;
45 if (pri->conn != NULL)
46 return vde_datafd(pri->conn);
48 printk(UM_KERN_WARNING "vde_open - we have no VDECONN to open");
52 static void vde_remove(void *data)
54 struct vde_data *pri = data;
56 if (pri->conn != NULL) {
57 printk(UM_KERN_INFO "vde backend - closing connection\n");
65 printk(UM_KERN_WARNING "vde_remove - we have no VDECONN to remove");
68 static int vde_set_mtu(int mtu, void *data)
73 const struct net_user_info vde_user_info = {
74 .init = vde_user_init,
75 .open = vde_user_open,
78 .set_mtu = vde_set_mtu,
80 .delete_address = NULL,
81 .max_packet = MAX_PACKET - ETH_HEADER_OTHER
84 void vde_init_libstuff(struct vde_data *vpri, struct vde_init *init)
86 struct vde_open_args *args;
88 vpri->args = kmalloc(sizeof(struct vde_open_args), UM_GFP_KERNEL);
89 if (vpri->args == NULL) {
90 printk(UM_KERN_ERR "vde_init_libstuff - vde_open_args"
97 args->port = init->port;
98 args->group = init->group;
99 args->mode = init->mode ? init->mode : 0700;
101 args->port ? printk(UM_KERN_INFO "port %d", args->port) :
102 printk(UM_KERN_INFO "undefined port");
105 int vde_user_read(void *conn, void *buf, int len)
107 VDECONN *vconn = conn;
113 rv = vde_recv(vconn, buf, len, 0);
125 int vde_user_write(void *conn, void *buf, int len)
127 VDECONN *vconn = conn;
132 return vde_send(vconn, buf, len, 0);