Contributors: 12
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Krzysztof Hałasa |
148 |
34.34% |
6 |
15.38% |
| François Romieu |
144 |
33.41% |
2 |
5.13% |
| Linus Torvalds (pre-git) |
55 |
12.76% |
16 |
41.03% |
| Linus Torvalds |
28 |
6.50% |
5 |
12.82% |
| Alan Cox |
20 |
4.64% |
1 |
2.56% |
| Al Viro |
12 |
2.78% |
3 |
7.69% |
| Arnd Bergmann |
9 |
2.09% |
1 |
2.56% |
| Andrew Lunn |
7 |
1.62% |
1 |
2.56% |
| Randy Dunlap |
4 |
0.93% |
1 |
2.56% |
| Thomas Gleixner |
2 |
0.46% |
1 |
2.56% |
| Harvey Harrison |
1 |
0.23% |
1 |
2.56% |
| Alexey Dobriyan |
1 |
0.23% |
1 |
2.56% |
| Total |
431 |
|
39 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Generic HDLC support routines for Linux
* HDLC support
*
* Copyright (C) 1999 - 2006 Krzysztof Halasa <khc@pm.waw.pl>
*/
#include <linux/errno.h>
#include <linux/hdlc.h>
#include <linux/if_arp.h>
#include <linux/inetdevice.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pkt_sched.h>
#include <linux/poll.h>
#include <linux/rtnetlink.h>
#include <linux/skbuff.h>
static int raw_ioctl(struct net_device *dev, struct if_settings *ifs);
static __be16 raw_type_trans(struct sk_buff *skb, struct net_device *dev)
{
return cpu_to_be16(ETH_P_IP);
}
static struct hdlc_proto proto = {
.type_trans = raw_type_trans,
.ioctl = raw_ioctl,
.module = THIS_MODULE,
};
static int raw_ioctl(struct net_device *dev, struct if_settings *ifs)
{
raw_hdlc_proto __user *raw_s = ifs->ifs_ifsu.raw_hdlc;
const size_t size = sizeof(raw_hdlc_proto);
raw_hdlc_proto new_settings;
hdlc_device *hdlc = dev_to_hdlc(dev);
int result;
switch (ifs->type) {
case IF_GET_PROTO:
if (dev_to_hdlc(dev)->proto != &proto)
return -EINVAL;
ifs->type = IF_PROTO_HDLC;
if (ifs->size < size) {
ifs->size = size; /* data size wanted */
return -ENOBUFS;
}
if (copy_to_user(raw_s, hdlc->state, size))
return -EFAULT;
return 0;
case IF_PROTO_HDLC:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (dev->flags & IFF_UP)
return -EBUSY;
if (copy_from_user(&new_settings, raw_s, size))
return -EFAULT;
if (new_settings.encoding == ENCODING_DEFAULT)
new_settings.encoding = ENCODING_NRZ;
if (new_settings.parity == PARITY_DEFAULT)
new_settings.parity = PARITY_CRC16_PR1_CCITT;
result = hdlc->attach(dev, new_settings.encoding,
new_settings.parity);
if (result)
return result;
result = attach_hdlc_protocol(dev, &proto,
sizeof(raw_hdlc_proto));
if (result)
return result;
memcpy(hdlc->state, &new_settings, size);
dev->type = ARPHRD_RAWHDLC;
call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev);
netif_dormant_off(dev);
return 0;
}
return -EINVAL;
}
static int __init hdlc_raw_init(void)
{
register_hdlc_protocol(&proto);
return 0;
}
static void __exit hdlc_raw_exit(void)
{
unregister_hdlc_protocol(&proto);
}
module_init(hdlc_raw_init);
module_exit(hdlc_raw_exit);
MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>");
MODULE_DESCRIPTION("Raw HDLC protocol support for generic HDLC");
MODULE_LICENSE("GPL v2");