mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 12:14:01 +08:00
d476059e77
Now that there are no more users kill dev_rebuild_header and all of it's implementations. This is long overdue. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
145 lines
3.1 KiB
C
145 lines
3.1 KiB
C
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Copyright (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/types.h>
|
|
#include <linux/sysctl.h>
|
|
#include <linux/string.h>
|
|
#include <linux/socket.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/fcntl.h>
|
|
#include <linux/in.h>
|
|
#include <linux/if_ether.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <asm/io.h>
|
|
|
|
#include <linux/inet.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/if_arp.h>
|
|
#include <linux/skbuff.h>
|
|
|
|
#include <net/ip.h>
|
|
#include <net/arp.h>
|
|
|
|
#include <net/ax25.h>
|
|
#include <net/rose.h>
|
|
|
|
static int rose_header(struct sk_buff *skb, struct net_device *dev,
|
|
unsigned short type,
|
|
const void *daddr, const void *saddr, unsigned int len)
|
|
{
|
|
unsigned char *buff = skb_push(skb, ROSE_MIN_LEN + 2);
|
|
|
|
if (daddr)
|
|
memcpy(buff + 7, daddr, dev->addr_len);
|
|
|
|
*buff++ = ROSE_GFI | ROSE_Q_BIT;
|
|
*buff++ = 0x00;
|
|
*buff++ = ROSE_DATA;
|
|
*buff++ = 0x7F;
|
|
*buff++ = AX25_P_IP;
|
|
|
|
if (daddr != NULL)
|
|
return 37;
|
|
|
|
return -37;
|
|
}
|
|
|
|
static int rose_set_mac_address(struct net_device *dev, void *addr)
|
|
{
|
|
struct sockaddr *sa = addr;
|
|
int err;
|
|
|
|
if (!memcmp(dev->dev_addr, sa->sa_data, dev->addr_len))
|
|
return 0;
|
|
|
|
if (dev->flags & IFF_UP) {
|
|
err = rose_add_loopback_node((rose_address *)sa->sa_data);
|
|
if (err)
|
|
return err;
|
|
|
|
rose_del_loopback_node((rose_address *)dev->dev_addr);
|
|
}
|
|
|
|
memcpy(dev->dev_addr, sa->sa_data, dev->addr_len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rose_open(struct net_device *dev)
|
|
{
|
|
int err;
|
|
|
|
err = rose_add_loopback_node((rose_address *)dev->dev_addr);
|
|
if (err)
|
|
return err;
|
|
|
|
netif_start_queue(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rose_close(struct net_device *dev)
|
|
{
|
|
netif_stop_queue(dev);
|
|
rose_del_loopback_node((rose_address *)dev->dev_addr);
|
|
return 0;
|
|
}
|
|
|
|
static netdev_tx_t rose_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
struct net_device_stats *stats = &dev->stats;
|
|
unsigned int len = skb->len;
|
|
|
|
if (!netif_running(dev)) {
|
|
printk(KERN_ERR "ROSE: rose_xmit - called when iface is down\n");
|
|
return NETDEV_TX_BUSY;
|
|
}
|
|
|
|
if (!rose_route_frame(skb, NULL)) {
|
|
dev_kfree_skb(skb);
|
|
stats->tx_errors++;
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
stats->tx_packets++;
|
|
stats->tx_bytes += len;
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
static const struct header_ops rose_header_ops = {
|
|
.create = rose_header,
|
|
};
|
|
|
|
static const struct net_device_ops rose_netdev_ops = {
|
|
.ndo_open = rose_open,
|
|
.ndo_stop = rose_close,
|
|
.ndo_start_xmit = rose_xmit,
|
|
.ndo_set_mac_address = rose_set_mac_address,
|
|
};
|
|
|
|
void rose_setup(struct net_device *dev)
|
|
{
|
|
dev->mtu = ROSE_MAX_PACKET_SIZE - 2;
|
|
dev->netdev_ops = &rose_netdev_ops;
|
|
|
|
dev->header_ops = &rose_header_ops;
|
|
dev->hard_header_len = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN;
|
|
dev->addr_len = ROSE_ADDR_LEN;
|
|
dev->type = ARPHRD_ROSE;
|
|
|
|
/* New-style flags. */
|
|
dev->flags = IFF_NOARP;
|
|
}
|