cd354f1ae7
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
209 lines
5.7 KiB
C
209 lines
5.7 KiB
C
/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* FDDI-type device handling.
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*
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* Version: @(#)fddi.c 1.0.0 08/12/96
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*
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* Authors: Lawrence V. Stefani, <stefani@lkg.dec.com>
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*
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* fddi.c is based on previous eth.c and tr.c work by
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* Ross Biro
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* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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* Mark Evans, <evansmp@uhura.aston.ac.uk>
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* Florian La Roche, <rzsfl@rz.uni-sb.de>
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* Alan Cox, <gw4pts@gw4pts.ampr.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Changes
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* Alan Cox : New arp/rebuild header
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* Maciej W. Rozycki : IPv6 support
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*/
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#include <linux/module.h>
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#include <asm/system.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/socket.h>
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#include <linux/in.h>
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#include <linux/inet.h>
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#include <linux/netdevice.h>
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#include <linux/fddidevice.h>
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#include <linux/if_ether.h>
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#include <linux/skbuff.h>
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#include <linux/errno.h>
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#include <net/arp.h>
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#include <net/sock.h>
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/*
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* Create the FDDI MAC header for an arbitrary protocol layer
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*
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* saddr=NULL means use device source address
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* daddr=NULL means leave destination address (eg unresolved arp)
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*/
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static int fddi_header(struct sk_buff *skb, struct net_device *dev,
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unsigned short type,
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void *daddr, void *saddr, unsigned len)
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{
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int hl = FDDI_K_SNAP_HLEN;
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struct fddihdr *fddi;
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if(type != ETH_P_IP && type != ETH_P_IPV6 && type != ETH_P_ARP)
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hl=FDDI_K_8022_HLEN-3;
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fddi = (struct fddihdr *)skb_push(skb, hl);
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fddi->fc = FDDI_FC_K_ASYNC_LLC_DEF;
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if(type == ETH_P_IP || type == ETH_P_IPV6 || type == ETH_P_ARP)
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{
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fddi->hdr.llc_snap.dsap = FDDI_EXTENDED_SAP;
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fddi->hdr.llc_snap.ssap = FDDI_EXTENDED_SAP;
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fddi->hdr.llc_snap.ctrl = FDDI_UI_CMD;
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fddi->hdr.llc_snap.oui[0] = 0x00;
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fddi->hdr.llc_snap.oui[1] = 0x00;
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fddi->hdr.llc_snap.oui[2] = 0x00;
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fddi->hdr.llc_snap.ethertype = htons(type);
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}
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/* Set the source and destination hardware addresses */
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if (saddr != NULL)
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memcpy(fddi->saddr, saddr, dev->addr_len);
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else
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memcpy(fddi->saddr, dev->dev_addr, dev->addr_len);
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if (daddr != NULL)
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{
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memcpy(fddi->daddr, daddr, dev->addr_len);
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return(hl);
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}
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return(-hl);
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}
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/*
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* Rebuild the FDDI MAC header. This is called after an ARP
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* (or in future other address resolution) has completed on
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* this sk_buff. We now let ARP fill in the other fields.
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*/
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static int fddi_rebuild_header(struct sk_buff *skb)
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{
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struct fddihdr *fddi = (struct fddihdr *)skb->data;
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#ifdef CONFIG_INET
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if (fddi->hdr.llc_snap.ethertype == __constant_htons(ETH_P_IP))
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/* Try to get ARP to resolve the header and fill destination address */
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return arp_find(fddi->daddr, skb);
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else
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#endif
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{
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printk("%s: Don't know how to resolve type %04X addresses.\n",
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skb->dev->name, ntohs(fddi->hdr.llc_snap.ethertype));
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return(0);
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}
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}
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/*
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* Determine the packet's protocol ID and fill in skb fields.
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* This routine is called before an incoming packet is passed
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* up. It's used to fill in specific skb fields and to set
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* the proper pointer to the start of packet data (skb->data).
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*/
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__be16 fddi_type_trans(struct sk_buff *skb, struct net_device *dev)
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{
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struct fddihdr *fddi = (struct fddihdr *)skb->data;
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__be16 type;
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/*
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* Set mac.raw field to point to FC byte, set data field to point
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* to start of packet data. Assume 802.2 SNAP frames for now.
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*/
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skb->mac.raw = skb->data; /* point to frame control (FC) */
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if(fddi->hdr.llc_8022_1.dsap==0xe0)
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{
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skb_pull(skb, FDDI_K_8022_HLEN-3);
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type = __constant_htons(ETH_P_802_2);
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}
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else
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{
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skb_pull(skb, FDDI_K_SNAP_HLEN); /* adjust for 21 byte header */
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type=fddi->hdr.llc_snap.ethertype;
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}
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/* Set packet type based on destination address and flag settings */
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if (*fddi->daddr & 0x01)
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{
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if (memcmp(fddi->daddr, dev->broadcast, FDDI_K_ALEN) == 0)
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skb->pkt_type = PACKET_BROADCAST;
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else
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skb->pkt_type = PACKET_MULTICAST;
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}
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else if (dev->flags & IFF_PROMISC)
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{
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if (memcmp(fddi->daddr, dev->dev_addr, FDDI_K_ALEN))
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skb->pkt_type = PACKET_OTHERHOST;
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}
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/* Assume 802.2 SNAP frames, for now */
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return(type);
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}
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EXPORT_SYMBOL(fddi_type_trans);
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static int fddi_change_mtu(struct net_device *dev, int new_mtu)
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{
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if ((new_mtu < FDDI_K_SNAP_HLEN) || (new_mtu > FDDI_K_SNAP_DLEN))
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return(-EINVAL);
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dev->mtu = new_mtu;
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return(0);
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}
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static void fddi_setup(struct net_device *dev)
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{
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dev->change_mtu = fddi_change_mtu;
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dev->hard_header = fddi_header;
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dev->rebuild_header = fddi_rebuild_header;
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dev->type = ARPHRD_FDDI;
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dev->hard_header_len = FDDI_K_SNAP_HLEN+3; /* Assume 802.2 SNAP hdr len + 3 pad bytes */
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dev->mtu = FDDI_K_SNAP_DLEN; /* Assume max payload of 802.2 SNAP frame */
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dev->addr_len = FDDI_K_ALEN;
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dev->tx_queue_len = 100; /* Long queues on FDDI */
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dev->flags = IFF_BROADCAST | IFF_MULTICAST;
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memset(dev->broadcast, 0xFF, FDDI_K_ALEN);
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}
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/**
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* alloc_fddidev - Register FDDI device
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* @sizeof_priv: Size of additional driver-private structure to be allocated
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* for this FDDI device
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*
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* Fill in the fields of the device structure with FDDI-generic values.
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*
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* Constructs a new net device, complete with a private data area of
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* size @sizeof_priv. A 32-byte (not bit) alignment is enforced for
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* this private data area.
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*/
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struct net_device *alloc_fddidev(int sizeof_priv)
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{
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return alloc_netdev(sizeof_priv, "fddi%d", fddi_setup);
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}
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EXPORT_SYMBOL(alloc_fddidev);
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