diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/um/drivers/slip_kern.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/um/drivers/slip_kern.c')
-rw-r--r-- | arch/um/drivers/slip_kern.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/arch/um/drivers/slip_kern.c b/arch/um/drivers/slip_kern.c new file mode 100644 index 000000000000..0886eedba213 --- /dev/null +++ b/arch/um/drivers/slip_kern.c | |||
@@ -0,0 +1,109 @@ | |||
1 | #include "linux/config.h" | ||
2 | #include "linux/kernel.h" | ||
3 | #include "linux/stddef.h" | ||
4 | #include "linux/init.h" | ||
5 | #include "linux/netdevice.h" | ||
6 | #include "linux/if_arp.h" | ||
7 | #include "net_kern.h" | ||
8 | #include "net_user.h" | ||
9 | #include "kern.h" | ||
10 | #include "slip.h" | ||
11 | |||
12 | struct slip_init { | ||
13 | char *gate_addr; | ||
14 | }; | ||
15 | |||
16 | void slip_init(struct net_device *dev, void *data) | ||
17 | { | ||
18 | struct uml_net_private *private; | ||
19 | struct slip_data *spri; | ||
20 | struct slip_init *init = data; | ||
21 | |||
22 | private = dev->priv; | ||
23 | spri = (struct slip_data *) private->user; | ||
24 | *spri = ((struct slip_data) | ||
25 | { .name = { '\0' }, | ||
26 | .addr = NULL, | ||
27 | .gate_addr = init->gate_addr, | ||
28 | .slave = -1, | ||
29 | .ibuf = { '\0' }, | ||
30 | .obuf = { '\0' }, | ||
31 | .pos = 0, | ||
32 | .esc = 0, | ||
33 | .dev = dev }); | ||
34 | |||
35 | dev->init = NULL; | ||
36 | dev->hard_header_len = 0; | ||
37 | dev->addr_len = 4; | ||
38 | dev->type = ARPHRD_ETHER; | ||
39 | dev->tx_queue_len = 256; | ||
40 | dev->flags = IFF_NOARP; | ||
41 | printk("SLIP backend - SLIP IP = %s\n", spri->gate_addr); | ||
42 | } | ||
43 | |||
44 | static unsigned short slip_protocol(struct sk_buff *skbuff) | ||
45 | { | ||
46 | return(htons(ETH_P_IP)); | ||
47 | } | ||
48 | |||
49 | static int slip_read(int fd, struct sk_buff **skb, | ||
50 | struct uml_net_private *lp) | ||
51 | { | ||
52 | return(slip_user_read(fd, (*skb)->mac.raw, (*skb)->dev->mtu, | ||
53 | (struct slip_data *) &lp->user)); | ||
54 | } | ||
55 | |||
56 | static int slip_write(int fd, struct sk_buff **skb, | ||
57 | struct uml_net_private *lp) | ||
58 | { | ||
59 | return(slip_user_write(fd, (*skb)->data, (*skb)->len, | ||
60 | (struct slip_data *) &lp->user)); | ||
61 | } | ||
62 | |||
63 | struct net_kern_info slip_kern_info = { | ||
64 | .init = slip_init, | ||
65 | .protocol = slip_protocol, | ||
66 | .read = slip_read, | ||
67 | .write = slip_write, | ||
68 | }; | ||
69 | |||
70 | static int slip_setup(char *str, char **mac_out, void *data) | ||
71 | { | ||
72 | struct slip_init *init = data; | ||
73 | |||
74 | *init = ((struct slip_init) | ||
75 | { .gate_addr = NULL }); | ||
76 | |||
77 | if(str[0] != '\0') | ||
78 | init->gate_addr = str; | ||
79 | return(1); | ||
80 | } | ||
81 | |||
82 | static struct transport slip_transport = { | ||
83 | .list = LIST_HEAD_INIT(slip_transport.list), | ||
84 | .name = "slip", | ||
85 | .setup = slip_setup, | ||
86 | .user = &slip_user_info, | ||
87 | .kern = &slip_kern_info, | ||
88 | .private_size = sizeof(struct slip_data), | ||
89 | .setup_size = sizeof(struct slip_init), | ||
90 | }; | ||
91 | |||
92 | static int register_slip(void) | ||
93 | { | ||
94 | register_transport(&slip_transport); | ||
95 | return(1); | ||
96 | } | ||
97 | |||
98 | __initcall(register_slip); | ||
99 | |||
100 | /* | ||
101 | * Overrides for Emacs so that we follow Linus's tabbing style. | ||
102 | * Emacs will notice this stuff at the end of the file and automatically | ||
103 | * adjust the settings for this buffer only. This must remain at the end | ||
104 | * of the file. | ||
105 | * --------------------------------------------------------------------------- | ||
106 | * Local variables: | ||
107 | * c-file-style: "linux" | ||
108 | * End: | ||
109 | */ | ||