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/pcap_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/pcap_kern.c')
-rw-r--r-- | arch/um/drivers/pcap_kern.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/arch/um/drivers/pcap_kern.c b/arch/um/drivers/pcap_kern.c new file mode 100644 index 000000000000..07c80f2156ef --- /dev/null +++ b/arch/um/drivers/pcap_kern.c | |||
@@ -0,0 +1,123 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2002 Jeff Dike <jdike@karaya.com> | ||
3 | * Licensed under the GPL. | ||
4 | */ | ||
5 | |||
6 | #include "linux/init.h" | ||
7 | #include "linux/netdevice.h" | ||
8 | #include "linux/etherdevice.h" | ||
9 | #include "net_kern.h" | ||
10 | #include "net_user.h" | ||
11 | #include "pcap_user.h" | ||
12 | |||
13 | struct pcap_init { | ||
14 | char *host_if; | ||
15 | int promisc; | ||
16 | int optimize; | ||
17 | char *filter; | ||
18 | }; | ||
19 | |||
20 | void pcap_init(struct net_device *dev, void *data) | ||
21 | { | ||
22 | struct uml_net_private *pri; | ||
23 | struct pcap_data *ppri; | ||
24 | struct pcap_init *init = data; | ||
25 | |||
26 | pri = dev->priv; | ||
27 | ppri = (struct pcap_data *) pri->user; | ||
28 | ppri->host_if = init->host_if; | ||
29 | ppri->promisc = init->promisc; | ||
30 | ppri->optimize = init->optimize; | ||
31 | ppri->filter = init->filter; | ||
32 | } | ||
33 | |||
34 | static int pcap_read(int fd, struct sk_buff **skb, | ||
35 | struct uml_net_private *lp) | ||
36 | { | ||
37 | *skb = ether_adjust_skb(*skb, ETH_HEADER_OTHER); | ||
38 | if(*skb == NULL) return(-ENOMEM); | ||
39 | return(pcap_user_read(fd, (*skb)->mac.raw, | ||
40 | (*skb)->dev->mtu + ETH_HEADER_OTHER, | ||
41 | (struct pcap_data *) &lp->user)); | ||
42 | } | ||
43 | |||
44 | static int pcap_write(int fd, struct sk_buff **skb, struct uml_net_private *lp) | ||
45 | { | ||
46 | return(-EPERM); | ||
47 | } | ||
48 | |||
49 | static struct net_kern_info pcap_kern_info = { | ||
50 | .init = pcap_init, | ||
51 | .protocol = eth_protocol, | ||
52 | .read = pcap_read, | ||
53 | .write = pcap_write, | ||
54 | }; | ||
55 | |||
56 | int pcap_setup(char *str, char **mac_out, void *data) | ||
57 | { | ||
58 | struct pcap_init *init = data; | ||
59 | char *remain, *host_if = NULL, *options[2] = { NULL, NULL }; | ||
60 | int i; | ||
61 | |||
62 | *init = ((struct pcap_init) | ||
63 | { .host_if = "eth0", | ||
64 | .promisc = 1, | ||
65 | .optimize = 0, | ||
66 | .filter = NULL }); | ||
67 | |||
68 | remain = split_if_spec(str, &host_if, &init->filter, | ||
69 | &options[0], &options[1], NULL); | ||
70 | if(remain != NULL){ | ||
71 | printk(KERN_ERR "pcap_setup - Extra garbage on " | ||
72 | "specification : '%s'\n", remain); | ||
73 | return(0); | ||
74 | } | ||
75 | |||
76 | if(host_if != NULL) | ||
77 | init->host_if = host_if; | ||
78 | |||
79 | for(i = 0; i < sizeof(options)/sizeof(options[0]); i++){ | ||
80 | if(options[i] == NULL) | ||
81 | continue; | ||
82 | if(!strcmp(options[i], "promisc")) | ||
83 | init->promisc = 1; | ||
84 | else if(!strcmp(options[i], "nopromisc")) | ||
85 | init->promisc = 0; | ||
86 | else if(!strcmp(options[i], "optimize")) | ||
87 | init->optimize = 1; | ||
88 | else if(!strcmp(options[i], "nooptimize")) | ||
89 | init->optimize = 0; | ||
90 | else printk("pcap_setup : bad option - '%s'\n", options[i]); | ||
91 | } | ||
92 | |||
93 | return(1); | ||
94 | } | ||
95 | |||
96 | static struct transport pcap_transport = { | ||
97 | .list = LIST_HEAD_INIT(pcap_transport.list), | ||
98 | .name = "pcap", | ||
99 | .setup = pcap_setup, | ||
100 | .user = &pcap_user_info, | ||
101 | .kern = &pcap_kern_info, | ||
102 | .private_size = sizeof(struct pcap_data), | ||
103 | .setup_size = sizeof(struct pcap_init), | ||
104 | }; | ||
105 | |||
106 | static int register_pcap(void) | ||
107 | { | ||
108 | register_transport(&pcap_transport); | ||
109 | return(1); | ||
110 | } | ||
111 | |||
112 | __initcall(register_pcap); | ||
113 | |||
114 | /* | ||
115 | * Overrides for Emacs so that we follow Linus's tabbing style. | ||
116 | * Emacs will notice this stuff at the end of the file and automatically | ||
117 | * adjust the settings for this buffer only. This must remain at the end | ||
118 | * of the file. | ||
119 | * --------------------------------------------------------------------------- | ||
120 | * Local variables: | ||
121 | * c-file-style: "linux" | ||
122 | * End: | ||
123 | */ | ||