diff options
Diffstat (limited to 'net/802/hippi.c')
| -rw-r--r-- | net/802/hippi.c | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/net/802/hippi.c b/net/802/hippi.c deleted file mode 100644 index 1997b7dd265e..000000000000 --- a/net/802/hippi.c +++ /dev/null @@ -1,193 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * INET An implementation of the TCP/IP protocol suite for the LINUX - * operating system. INET is implemented using the BSD Socket - * interface as the means of communication with the user level. - * - * HIPPI-type device handling. - * - * Version: @(#)hippi.c 1.0.0 05/29/97 - * - * Authors: Ross Biro - * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> - * Mark Evans, <evansmp@uhura.aston.ac.uk> - * Florian La Roche, <rzsfl@rz.uni-sb.de> - * Alan Cox, <gw4pts@gw4pts.ampr.org> - * Jes Sorensen, <Jes.Sorensen@cern.ch> - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/socket.h> -#include <linux/in.h> -#include <linux/inet.h> -#include <linux/netdevice.h> -#include <linux/hippidevice.h> -#include <linux/skbuff.h> -#include <linux/errno.h> -#include <net/arp.h> -#include <net/sock.h> -#include <linux/uaccess.h> - -/* - * Create the HIPPI MAC header for an arbitrary protocol layer - * - * saddr=NULL means use device source address - * daddr=NULL means leave destination address (eg unresolved arp) - */ - -static int hippi_header(struct sk_buff *skb, struct net_device *dev, - unsigned short type, - const void *daddr, const void *saddr, unsigned int len) -{ - struct hippi_hdr *hip = skb_push(skb, HIPPI_HLEN); - struct hippi_cb *hcb = (struct hippi_cb *) skb->cb; - - if (!len){ - len = skb->len - HIPPI_HLEN; - printk("hippi_header(): length not supplied\n"); - } - - /* - * Due to the stupidity of the little endian byte-order we - * have to set the fp field this way. - */ - hip->fp.fixed = htonl(0x04800018); - hip->fp.d2_size = htonl(len + 8); - hip->le.fc = 0; - hip->le.double_wide = 0; /* only HIPPI 800 for the time being */ - hip->le.message_type = 0; /* Data PDU */ - - hip->le.dest_addr_type = 2; /* 12 bit SC address */ - hip->le.src_addr_type = 2; /* 12 bit SC address */ - - memcpy(hip->le.src_switch_addr, dev->dev_addr + 3, 3); - memset_startat(&hip->le, 0, reserved); - - hip->snap.dsap = HIPPI_EXTENDED_SAP; - hip->snap.ssap = HIPPI_EXTENDED_SAP; - hip->snap.ctrl = HIPPI_UI_CMD; - hip->snap.oui[0] = 0x00; - hip->snap.oui[1] = 0x00; - hip->snap.oui[2] = 0x00; - hip->snap.ethertype = htons(type); - - if (daddr) - { - memcpy(hip->le.dest_switch_addr, daddr + 3, 3); - memcpy(&hcb->ifield, daddr + 2, 4); - return HIPPI_HLEN; - } - hcb->ifield = 0; - return -((int)HIPPI_HLEN); -} - - -/* - * Determine the packet's protocol ID. - */ - -__be16 hippi_type_trans(struct sk_buff *skb, struct net_device *dev) -{ - struct hippi_hdr *hip; - - /* - * This is actually wrong ... question is if we really should - * set the raw address here. - */ - skb->dev = dev; - skb_reset_mac_header(skb); - hip = (struct hippi_hdr *)skb_mac_header(skb); - skb_pull(skb, HIPPI_HLEN); - - /* - * No fancy promisc stuff here now. - */ - - return hip->snap.ethertype; -} - -EXPORT_SYMBOL(hippi_type_trans); - -/* - * For HIPPI we will actually use the lower 4 bytes of the hardware - * address as the I-FIELD rather than the actual hardware address. - */ -int hippi_mac_addr(struct net_device *dev, void *p) -{ - struct sockaddr *addr = p; - if (netif_running(dev)) - return -EBUSY; - dev_addr_set(dev, addr->sa_data); - return 0; -} -EXPORT_SYMBOL(hippi_mac_addr); - -int hippi_neigh_setup_dev(struct net_device *dev, struct neigh_parms *p) -{ - /* Never send broadcast/multicast ARP messages */ - NEIGH_VAR_INIT(p, MCAST_PROBES, 0); - - /* In IPv6 unicast probes are valid even on NBMA, - * because they are encapsulated in normal IPv6 protocol. - * Should be a generic flag. - */ - if (p->tbl->family != AF_INET6) - NEIGH_VAR_INIT(p, UCAST_PROBES, 0); - return 0; -} -EXPORT_SYMBOL(hippi_neigh_setup_dev); - -static const struct header_ops hippi_header_ops = { - .create = hippi_header, -}; - - -static void hippi_setup(struct net_device *dev) -{ - dev->header_ops = &hippi_header_ops; - - /* - * We don't support HIPPI `ARP' for the time being, and probably - * never will unless someone else implements it. However we - * still need a fake ARPHRD to make ifconfig and friends play ball. - */ - dev->type = ARPHRD_HIPPI; - dev->hard_header_len = HIPPI_HLEN; - dev->mtu = 65280; - dev->min_mtu = 68; - dev->max_mtu = 65280; - dev->addr_len = HIPPI_ALEN; - dev->tx_queue_len = 25 /* 5 */; - memset(dev->broadcast, 0xFF, HIPPI_ALEN); - - - /* - * HIPPI doesn't support broadcast+multicast and we only use - * static ARP tables. ARP is disabled by hippi_neigh_setup_dev. - */ - dev->flags = 0; -} - -/** - * alloc_hippi_dev - Register HIPPI device - * @sizeof_priv: Size of additional driver-private structure to be allocated - * for this HIPPI device - * - * Fill in the fields of the device structure with HIPPI-generic values. - * - * Constructs a new net device, complete with a private data area of - * size @sizeof_priv. A 32-byte (not bit) alignment is enforced for - * this private data area. - */ - -struct net_device *alloc_hippi_dev(int sizeof_priv) -{ - return alloc_netdev(sizeof_priv, "hip%d", NET_NAME_UNKNOWN, - hippi_setup); -} - -EXPORT_SYMBOL(alloc_hippi_dev); |