Release 4.7 drivers/net/wan/hdlc_x25.c
/*
* Generic HDLC support routines for Linux
* X.25 support
*
* Copyright (C) 1999 - 2006 Krzysztof Halasa <khc@pm.waw.pl>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*/
#include <linux/errno.h>
#include <linux/gfp.h>
#include <linux/hdlc.h>
#include <linux/if_arp.h>
#include <linux/inetdevice.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/lapb.h>
#include <linux/module.h>
#include <linux/pkt_sched.h>
#include <linux/poll.h>
#include <linux/rtnetlink.h>
#include <linux/skbuff.h>
#include <net/x25device.h>
static int x25_ioctl(struct net_device *dev, struct ifreq *ifr);
/* These functions are callbacks called by LAPB layer */
static void x25_connect_disconnect(struct net_device *dev, int reason, int code)
{
struct sk_buff *skb;
unsigned char *ptr;
if ((skb = dev_alloc_skb(1)) == NULL) {
netdev_err(dev, "out of memory\n");
return;
}
ptr = skb_put(skb, 1);
*ptr = code;
skb->protocol = x25_type_trans(skb, dev);
netif_rx(skb);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| francois romieu | francois romieu | 69 | 86.25% | 1 | 25.00% |
| al viro | al viro | 4 | 5.00% | 1 | 25.00% |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 4 | 5.00% | 1 | 25.00% |
| joe perches | joe perches | 3 | 3.75% | 1 | 25.00% |
| Total | 80 | 100.00% | 4 | 100.00% |
static void x25_connected(struct net_device *dev, int reason)
{
x25_connect_disconnect(dev, reason, X25_IFACE_CONNECT);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| francois romieu | francois romieu | 18 | 78.26% | 1 | 33.33% |
| al viro | al viro | 4 | 17.39% | 1 | 33.33% |
| andrew hendry | andrew hendry | 1 | 4.35% | 1 | 33.33% |
| Total | 23 | 100.00% | 3 | 100.00% |
static void x25_disconnected(struct net_device *dev, int reason)
{
x25_connect_disconnect(dev, reason, X25_IFACE_DISCONNECT);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| francois romieu | francois romieu | 18 | 78.26% | 1 | 33.33% |
| al viro | al viro | 4 | 17.39% | 1 | 33.33% |
| andrew hendry | andrew hendry | 1 | 4.35% | 1 | 33.33% |
| Total | 23 | 100.00% | 3 | 100.00% |
static int x25_data_indication(struct net_device *dev, struct sk_buff *skb)
{
unsigned char *ptr;
skb_push(skb, 1);
if (skb_cow(skb, 1))
return NET_RX_DROP;
ptr = skb->data;
*ptr = X25_IFACE_DATA;
skb->protocol = x25_type_trans(skb, dev);
return netif_rx(skb);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| francois romieu | francois romieu | 42 | 61.76% | 1 | 20.00% |
| david s. miller | david s. miller | 18 | 26.47% | 1 | 20.00% |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 4 | 5.88% | 1 | 20.00% |
| al viro | al viro | 3 | 4.41% | 1 | 20.00% |
| andrew hendry | andrew hendry | 1 | 1.47% | 1 | 20.00% |
| Total | 68 | 100.00% | 5 | 100.00% |
static void x25_data_transmit(struct net_device *dev, struct sk_buff *skb)
{
hdlc_device *hdlc = dev_to_hdlc(dev);
hdlc->xmit(skb, dev); /* Ignore return value :-( */
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| francois romieu | francois romieu | 27 | 77.14% | 1 | 50.00% |
| al viro | al viro | 8 | 22.86% | 1 | 50.00% |
| Total | 35 | 100.00% | 2 | 100.00% |
static netdev_tx_t x25_xmit(struct sk_buff *skb, struct net_device *dev)
{
int result;
/* X.25 to LAPB */
switch (skb->data[0]) {
case X25_IFACE_DATA: /* Data to be transmitted */
skb_pull(skb, 1);
if ((result = lapb_data_request(dev, skb)) != LAPB_OK)
dev_kfree_skb(skb);
return NETDEV_TX_OK;
case X25_IFACE_CONNECT:
if ((result = lapb_connect_request(dev))!= LAPB_OK) {
if (result == LAPB_CONNECTED)
/* Send connect confirm. msg to level 3 */
x25_connected(dev, 0);
else
netdev_err(dev, "LAPB connect request failed, error code = %i\n",
result);
}
break;
case X25_IFACE_DISCONNECT:
if ((result = lapb_disconnect_request(dev)) != LAPB_OK) {
if (result == LAPB_NOTCONNECTED)
/* Send disconnect confirm. msg to level 3 */
x25_disconnected(dev, 0);
else
netdev_err(dev, "LAPB disconnect request failed, error code = %i\n",
result);
}
break;
default: /* to be defined */
break;
}
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| francois romieu | francois romieu | 143 | 88.27% | 1 | 16.67% |
| al viro | al viro | 7 | 4.32% | 2 | 33.33% |
| joe perches | joe perches | 6 | 3.70% | 1 | 16.67% |
| stephen hemminger | stephen hemminger | 3 | 1.85% | 1 | 16.67% |
| andrew hendry | andrew hendry | 3 | 1.85% | 1 | 16.67% |
| Total | 162 | 100.00% | 6 | 100.00% |
static int x25_open(struct net_device *dev)
{
int result;
static const struct lapb_register_struct cb = {
.connect_confirmation = x25_connected,
.connect_indication = x25_connected,
.disconnect_confirmation = x25_disconnected,
.disconnect_indication = x25_disconnected,
.data_indication = x25_data_indication,
.data_transmit = x25_data_transmit,
};
result = lapb_register(dev, &cb);
if (result != LAPB_OK)
return result;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| francois romieu | francois romieu | 56 | 75.68% | 1 | 25.00% |
| stephen hemminger | stephen hemminger | 13 | 17.57% | 1 | 25.00% |
| al viro | al viro | 5 | 6.76% | 2 | 50.00% |
| Total | 74 | 100.00% | 4 | 100.00% |
static void x25_close(struct net_device *dev)
{
lapb_unregister(dev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| francois romieu | francois romieu | 11 | 68.75% | 1 | 33.33% |
| al viro | al viro | 5 | 31.25% | 2 | 66.67% |
| Total | 16 | 100.00% | 3 | 100.00% |
static int x25_rx(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) {
dev->stats.rx_dropped++;
return NET_RX_DROP;
}
if (lapb_data_received(dev, skb) == LAPB_OK)
return NET_RX_SUCCESS;
dev->stats.rx_errors++;
dev_kfree_skb_any(skb);
return NET_RX_DROP;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| andrew morton | andrew morton | 33 | 43.42% | 1 | 20.00% |
| francois romieu | francois romieu | 31 | 40.79% | 1 | 20.00% |
| krzysztof halasa | krzysztof halasa | 11 | 14.47% | 2 | 40.00% |
| al viro | al viro | 1 | 1.32% | 1 | 20.00% |
| Total | 76 | 100.00% | 5 | 100.00% |
static struct hdlc_proto proto = {
.open = x25_open,
.close = x25_close,
.ioctl = x25_ioctl,
.netif_rx = x25_rx,
.xmit = x25_xmit,
.module = THIS_MODULE,
};
static int x25_ioctl(struct net_device *dev, struct ifreq *ifr)
{
hdlc_device *hdlc = dev_to_hdlc(dev);
int result;
switch (ifr->ifr_settings.type) {
case IF_GET_PROTO:
if (dev_to_hdlc(dev)->proto != &proto)
return -EINVAL;
ifr->ifr_settings.type = IF_PROTO_X25;
return 0; /* return protocol only, no settable parameters */
case IF_PROTO_X25:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (dev->flags & IFF_UP)
return -EBUSY;
result=hdlc->attach(dev, ENCODING_NRZ,PARITY_CRC16_PR1_CCITT);
if (result)
return result;
if ((result = attach_hdlc_protocol(dev, &proto, 0)))
return result;
dev->type = ARPHRD_X25;
call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev);
netif_dormant_off(dev);
return 0;
}
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| francois romieu | francois romieu | 101 | 63.12% | 1 | 12.50% |
| krzysztof halasa | krzysztof halasa | 42 | 26.25% | 3 | 37.50% |
| al viro | al viro | 8 | 5.00% | 2 | 25.00% |
| andrew lunn | andrew lunn | 7 | 4.38% | 1 | 12.50% |
| alan cox | alan cox | 2 | 1.25% | 1 | 12.50% |
| Total | 160 | 100.00% | 8 | 100.00% |
static int __init mod_init(void)
{
register_hdlc_protocol(&proto);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| krzysztof halasa | krzysztof halasa | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
static void __exit mod_exit(void)
{
unregister_hdlc_protocol(&proto);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| krzysztof halasa | krzysztof halasa | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
module_init(mod_init);
module_exit(mod_exit);
MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>");
MODULE_DESCRIPTION("X.25 protocol support for generic HDLC");
MODULE_LICENSE("GPL v2");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| francois romieu | francois romieu | 544 | 62.46% | 1 | 4.17% |
| krzysztof halasa | krzysztof halasa | 175 | 20.09% | 8 | 33.33% |
| al viro | al viro | 49 | 5.63% | 5 | 20.83% |
| andrew morton | andrew morton | 33 | 3.79% | 1 | 4.17% |
| david s. miller | david s. miller | 18 | 2.07% | 1 | 4.17% |
| stephen hemminger | stephen hemminger | 16 | 1.84% | 2 | 8.33% |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 9 | 1.03% | 1 | 4.17% |
| joe perches | joe perches | 9 | 1.03% | 1 | 4.17% |
| andrew lunn | andrew lunn | 7 | 0.80% | 1 | 4.17% |
| andrew hendry | andrew hendry | 6 | 0.69% | 1 | 4.17% |
| tejun heo | tejun heo | 3 | 0.34% | 1 | 4.17% |
| alan cox | alan cox | 2 | 0.23% | 1 | 4.17% |
| Total | 871 | 100.00% | 24 | 100.00% |
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