2 * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
3 * James Leu (jleu@mindspring.net).
4 * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
5 * Copyright (C) 2001 by various other people who didn't put their name here.
6 * Licensed under the GPL.
9 #include "linux/init.h"
10 #include <linux/netdevice.h>
19 static void daemon_init(struct net_device
*dev
, void *data
)
21 struct uml_net_private
*pri
;
22 struct daemon_data
*dpri
;
23 struct daemon_init
*init
= data
;
26 dpri
= (struct daemon_data
*) pri
->user
;
27 dpri
->sock_type
= init
->sock_type
;
28 dpri
->ctl_sock
= init
->ctl_sock
;
32 /* We will free this pointer. If it contains crap we're burned. */
33 dpri
->ctl_addr
= NULL
;
34 dpri
->data_addr
= NULL
;
35 dpri
->local_addr
= NULL
;
37 printk("daemon backend (uml_switch version %d) - %s:%s",
38 SWITCH_VERSION
, dpri
->sock_type
, dpri
->ctl_sock
);
42 static int daemon_read(int fd
, struct sk_buff
**skb
,
43 struct uml_net_private
*lp
)
45 *skb
= ether_adjust_skb(*skb
, ETH_HEADER_OTHER
);
48 return net_recvfrom(fd
, skb_mac_header(*skb
),
49 (*skb
)->dev
->mtu
+ ETH_HEADER_OTHER
);
52 static int daemon_write(int fd
, struct sk_buff
**skb
,
53 struct uml_net_private
*lp
)
55 return daemon_user_write(fd
, (*skb
)->data
, (*skb
)->len
,
56 (struct daemon_data
*) &lp
->user
);
59 static const struct net_kern_info daemon_kern_info
= {
61 .protocol
= eth_protocol
,
63 .write
= daemon_write
,
66 static int daemon_setup(char *str
, char **mac_out
, void *data
)
68 struct daemon_init
*init
= data
;
71 *init
= ((struct daemon_init
)
72 { .sock_type
= "unix",
73 .ctl_sock
= "/tmp/uml.ctl" });
75 remain
= split_if_spec(str
, mac_out
, &init
->sock_type
, &init
->ctl_sock
,
78 printk(KERN_WARNING
"daemon_setup : Ignoring data socket "
84 static struct transport daemon_transport
= {
85 .list
= LIST_HEAD_INIT(daemon_transport
.list
),
87 .setup
= daemon_setup
,
88 .user
= &daemon_user_info
,
89 .kern
= &daemon_kern_info
,
90 .private_size
= sizeof(struct daemon_data
),
91 .setup_size
= sizeof(struct daemon_init
),
94 static int register_daemon(void)
96 register_transport(&daemon_transport
);
100 late_initcall(register_daemon
);