Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
cd1ae0e4 | 2 | * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and |
1da177e4 | 3 | * James Leu (jleu@mindspring.net). |
cd1ae0e4 | 4 | * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
1da177e4 LT |
5 | * Copyright (C) 2001 by various other people who didn't put their name here. |
6 | * Licensed under the GPL. | |
7 | */ | |
8 | ||
1da177e4 | 9 | #include "linux/init.h" |
cd1ae0e4 | 10 | #include <linux/netdevice.h> |
1da177e4 | 11 | #include "net_kern.h" |
1da177e4 LT |
12 | #include "daemon.h" |
13 | ||
14 | struct daemon_init { | |
15 | char *sock_type; | |
16 | char *ctl_sock; | |
17 | }; | |
18 | ||
42947cb9 | 19 | static void daemon_init(struct net_device *dev, void *data) |
1da177e4 LT |
20 | { |
21 | struct uml_net_private *pri; | |
22 | struct daemon_data *dpri; | |
23 | struct daemon_init *init = data; | |
24 | ||
25 | pri = dev->priv; | |
26 | dpri = (struct daemon_data *) pri->user; | |
27 | dpri->sock_type = init->sock_type; | |
28 | dpri->ctl_sock = init->ctl_sock; | |
29 | dpri->fd = -1; | |
30 | dpri->control = -1; | |
31 | dpri->dev = dev; | |
c42791b6 PBG |
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; | |
1da177e4 | 36 | |
cd1ae0e4 | 37 | printk("daemon backend (uml_switch version %d) - %s:%s", |
1da177e4 LT |
38 | SWITCH_VERSION, dpri->sock_type, dpri->ctl_sock); |
39 | printk("\n"); | |
40 | } | |
41 | ||
b53f35a8 | 42 | static int daemon_read(int fd, struct sk_buff *skb, struct uml_net_private *lp) |
1da177e4 | 43 | { |
b53f35a8 JD |
44 | return net_recvfrom(fd, skb_mac_header(skb), |
45 | skb->dev->mtu + ETH_HEADER_OTHER); | |
1da177e4 LT |
46 | } |
47 | ||
b53f35a8 | 48 | static int daemon_write(int fd, struct sk_buff *skb, struct uml_net_private *lp) |
1da177e4 | 49 | { |
b53f35a8 | 50 | return daemon_user_write(fd, skb->data, skb->len, |
cd1ae0e4 | 51 | (struct daemon_data *) &lp->user); |
1da177e4 LT |
52 | } |
53 | ||
5e7672ec | 54 | static const struct net_kern_info daemon_kern_info = { |
1da177e4 LT |
55 | .init = daemon_init, |
56 | .protocol = eth_protocol, | |
57 | .read = daemon_read, | |
58 | .write = daemon_write, | |
59 | }; | |
60 | ||
42947cb9 | 61 | static int daemon_setup(char *str, char **mac_out, void *data) |
1da177e4 LT |
62 | { |
63 | struct daemon_init *init = data; | |
64 | char *remain; | |
65 | ||
66 | *init = ((struct daemon_init) | |
67 | { .sock_type = "unix", | |
68 | .ctl_sock = "/tmp/uml.ctl" }); | |
cd1ae0e4 | 69 | |
1da177e4 LT |
70 | remain = split_if_spec(str, mac_out, &init->sock_type, &init->ctl_sock, |
71 | NULL); | |
cd1ae0e4 | 72 | if (remain != NULL) |
1da177e4 LT |
73 | printk(KERN_WARNING "daemon_setup : Ignoring data socket " |
74 | "specification\n"); | |
cd1ae0e4 JD |
75 | |
76 | return 1; | |
1da177e4 LT |
77 | } |
78 | ||
79 | static struct transport daemon_transport = { | |
80 | .list = LIST_HEAD_INIT(daemon_transport.list), | |
81 | .name = "daemon", | |
82 | .setup = daemon_setup, | |
83 | .user = &daemon_user_info, | |
84 | .kern = &daemon_kern_info, | |
85 | .private_size = sizeof(struct daemon_data), | |
86 | .setup_size = sizeof(struct daemon_init), | |
87 | }; | |
88 | ||
89 | static int register_daemon(void) | |
90 | { | |
91 | register_transport(&daemon_transport); | |
f4c57a78 | 92 | return 0; |
1da177e4 LT |
93 | } |
94 | ||
8210fd2a | 95 | late_initcall(register_daemon); |