11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * INET An implementation of the TCP/IP protocol suite for the LINUX 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * operating system. INET is implemented using the BSD Socket 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * interface as the means of communication with the user level. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * HIPPI-type device handling. 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version: @(#)hippi.c 1.0.0 05/29/97 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1002c30a84e6298b6b20a56f0896ac80b47839e134Jesper Juhl * Authors: Ross Biro 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mark Evans, <evansmp@uhura.aston.ac.uk> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Florian La Roche, <rzsfl@rz.uni-sb.de> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alan Cox, <gw4pts@gw4pts.ampr.org> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Jes Sorensen, <Jes.Sorensen@cern.ch> 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * modify it under the terms of the GNU General Public License 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * as published by the Free Software Foundation; either version 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2 of the License, or (at your option) any later version. 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/socket.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/in.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/inet.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/netdevice.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/hippidevice.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/skbuff.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <net/arp.h> 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <net/sock.h> 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 409afa0949eea959f28248b717757c201765f1c19bYOSHIFUJI Hideaki * Create the HIPPI MAC header for an arbitrary protocol layer 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * saddr=NULL means use device source address 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * daddr=NULL means leave destination address (eg unresolved arp) 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int hippi_header(struct sk_buff *skb, struct net_device *dev, 473b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger unsigned short type, 4895c961747284a6b83a5e2d81240e214b0fa3464dEric Dumazet const void *daddr, const void *saddr, unsigned int len) 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct hippi_hdr *hip = (struct hippi_hdr *)skb_push(skb, HIPPI_HLEN); 516f1cf16582160c4839f05007c978743911aa022bStephen Hemminger struct hippi_cb *hcb = (struct hippi_cb *) skb->cb; 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!len){ 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = skb->len - HIPPI_HLEN; 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("hippi_header(): length not supplied\n"); 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Due to the stupidity of the little endian byte-order we 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * have to set the fp field this way. 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 622953fd246845f4d00af3717163f37b2ff4c5ce29YOSHIFUJI Hideaki hip->fp.fixed = htonl(0x04800018); 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->fp.d2_size = htonl(len + 8); 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->le.fc = 0; 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->le.double_wide = 0; /* only HIPPI 800 for the time being */ 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->le.message_type = 0; /* Data PDU */ 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->le.dest_addr_type = 2; /* 12 bit SC address */ 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->le.src_addr_type = 2; /* 12 bit SC address */ 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(hip->le.src_switch_addr, dev->dev_addr + 3, 3); 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&hip->le.reserved, 0, 16); 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->snap.dsap = HIPPI_EXTENDED_SAP; 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->snap.ssap = HIPPI_EXTENDED_SAP; 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->snap.ctrl = HIPPI_UI_CMD; 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->snap.oui[0] = 0x00; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->snap.oui[1] = 0x00; 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->snap.oui[2] = 0x00; 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hip->snap.ethertype = htons(type); 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (daddr) 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(hip->le.dest_switch_addr, daddr + 3, 3); 856f1cf16582160c4839f05007c978743911aa022bStephen Hemminger memcpy(&hcb->ifield, daddr + 2, 4); 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return HIPPI_HLEN; 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 886f1cf16582160c4839f05007c978743911aa022bStephen Hemminger hcb->ifield = 0; 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -((int)HIPPI_HLEN); 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Rebuild the HIPPI MAC header. This is called after an ARP has 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * completed on this sk_buff. We now let ARP fill in the other fields. 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int hippi_rebuild_header(struct sk_buff *skb) 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct hippi_hdr *hip = (struct hippi_hdr *)skb->data; 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Only IP is currently supported 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1059afa0949eea959f28248b717757c201765f1c19bYOSHIFUJI Hideaki 1062953fd246845f4d00af3717163f37b2ff4c5ce29YOSHIFUJI Hideaki if(hip->snap.ethertype != htons(ETH_P_IP)) 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_DEBUG "%s: unable to resolve type %X addresses.\n",skb->dev->name,ntohs(hip->snap.ethertype)); 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We don't support dynamic ARP on HIPPI, but we use the ARP 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * static ARP tables to hold the I-FIELDs. 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return arp_find(hip->le.daddr, skb); 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Determine the packet's protocol ID. 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1239afa0949eea959f28248b717757c201765f1c19bYOSHIFUJI Hideaki 12457bf1451ac79640c5a0a4f31284c43539fac2903Alexey Dobriyan__be16 hippi_type_trans(struct sk_buff *skb, struct net_device *dev) 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct hippi_hdr *hip; 1279afa0949eea959f28248b717757c201765f1c19bYOSHIFUJI Hideaki 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is actually wrong ... question is if we really should 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * set the raw address here. 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1320a4f23fbbff70c268b0f2f5e0b87301c132fb305Arnaldo Carvalho de Melo skb->dev = dev; 133459a98ed881802dee55897441bc7f77af614368eArnaldo Carvalho de Melo skb_reset_mac_header(skb); 13498e399f82ab3a6d863d1d4a7ea48925cc91c830eArnaldo Carvalho de Melo hip = (struct hippi_hdr *)skb_mac_header(skb); 1350a4f23fbbff70c268b0f2f5e0b87301c132fb305Arnaldo Carvalho de Melo skb_pull(skb, HIPPI_HLEN); 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * No fancy promisc stuff here now. 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return hip->snap.ethertype; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(hippi_type_trans); 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 146748ff68fad9600593c6abe47856037602bd5d133Stephen Hemmingerint hippi_change_mtu(struct net_device *dev, int new_mtu) 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * HIPPI's got these nice large MTUs. 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((new_mtu < 68) || (new_mtu > 65280)) 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->mtu = new_mtu; 154a02cec2155fbea457eca8881870fd2de1a4c4c76Eric Dumazet return 0; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 156748ff68fad9600593c6abe47856037602bd5d133Stephen HemmingerEXPORT_SYMBOL(hippi_change_mtu); 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For HIPPI we will actually use the lower 4 bytes of the hardware 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * address as the I-FIELD rather than the actual hardware address. 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 162748ff68fad9600593c6abe47856037602bd5d133Stephen Hemmingerint hippi_mac_addr(struct net_device *dev, void *p) 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sockaddr *addr = p; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (netif_running(dev)) 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 170748ff68fad9600593c6abe47856037602bd5d133Stephen HemmingerEXPORT_SYMBOL(hippi_mac_addr); 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 172748ff68fad9600593c6abe47856037602bd5d133Stephen Hemmingerint hippi_neigh_setup_dev(struct net_device *dev, struct neigh_parms *p) 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Never send broadcast/multicast ARP messages */ 17589740ca74f5bb45d3e0dcb4aa9eab0ba9864bff5Jiri Pirko NEIGH_VAR_INIT(p, MCAST_PROBES, 0); 1769afa0949eea959f28248b717757c201765f1c19bYOSHIFUJI Hideaki 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* In IPv6 unicast probes are valid even on NBMA, 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * because they are encapsulated in normal IPv6 protocol. 1799afa0949eea959f28248b717757c201765f1c19bYOSHIFUJI Hideaki * Should be a generic flag. 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (p->tbl->family != AF_INET6) 18289740ca74f5bb45d3e0dcb4aa9eab0ba9864bff5Jiri Pirko NEIGH_VAR_INIT(p, UCAST_PROBES, 0); 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 185748ff68fad9600593c6abe47856037602bd5d133Stephen HemmingerEXPORT_SYMBOL(hippi_neigh_setup_dev); 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1873b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemmingerstatic const struct header_ops hippi_header_ops = { 1883b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .create = hippi_header, 1893b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger .rebuild = hippi_rebuild_header, 1903b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger}; 1913b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger 1923b04ddde02cf1b6f14f2697da5c20eca5715017fStephen Hemminger 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void hippi_setup(struct net_device *dev) 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 195748ff68fad9600593c6abe47856037602bd5d133Stephen Hemminger dev->header_ops = &hippi_header_ops; 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We don't support HIPPI `ARP' for the time being, and probably 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * never will unless someone else implements it. However we 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * still need a fake ARPHRD to make ifconfig and friends play ball. 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->type = ARPHRD_HIPPI; 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->hard_header_len = HIPPI_HLEN; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->mtu = 65280; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->addr_len = HIPPI_ALEN; 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->tx_queue_len = 25 /* 5 */; 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(dev->broadcast, 0xFF, HIPPI_ALEN); 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * HIPPI doesn't support broadcast+multicast and we only use 2129afa0949eea959f28248b717757c201765f1c19bYOSHIFUJI Hideaki * static ARP tables. ARP is disabled by hippi_neigh_setup_dev. 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2149afa0949eea959f28248b717757c201765f1c19bYOSHIFUJI Hideaki dev->flags = 0; 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * alloc_hippi_dev - Register HIPPI device 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @sizeof_priv: Size of additional driver-private structure to be allocated 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for this HIPPI device 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Fill in the fields of the device structure with HIPPI-generic values. 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Constructs a new net device, complete with a private data area of 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * size @sizeof_priv. A 32-byte (not bit) alignment is enforced for 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this private data area. 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct net_device *alloc_hippi_dev(int sizeof_priv) 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 231c835a677331495cf137a7f8a023463afd9f032f8Tom Gundersen return alloc_netdev(sizeof_priv, "hip%d", NET_NAME_UNKNOWN, 232c835a677331495cf137a7f8a023463afd9f032f8Tom Gundersen hippi_setup); 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(alloc_hippi_dev); 236