forked from Minki/linux
Merge branch 'ipv6-firewire'
YOSHIFUJI Hideaki says: ==================== This is take 4 of supporting IPv6 over Firewire (IEEE 1394) based on RFC3146. Take 3->4: - Fix receiving 1394 ARP, which comes without arp$tha. - Remove rfc3146 unit directory on module exit. - other minor clean-ups - minimize diffs. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
commit
8dc57da2e2
@ -47,9 +47,9 @@ config FIREWIRE_NET
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tristate "IP networking over 1394"
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depends on FIREWIRE && INET
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help
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This enables IPv4 over IEEE 1394, providing IP connectivity with
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other implementations of RFC 2734 as found on several operating
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systems. Multicast support is currently limited.
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This enables IPv4/IPv6 over IEEE 1394, providing IP connectivity
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with other implementations of RFC 2734/3146 as found on several
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operating systems. Multicast support is currently limited.
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To compile this driver as a module, say M here: The module will be
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called firewire-net.
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|
@ -1,5 +1,6 @@
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/*
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* IPv4 over IEEE 1394, per RFC 2734
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* IPv6 over IEEE 1394, per RFC 3146
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*
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* Copyright (C) 2009 Jay Fenlason <fenlason@redhat.com>
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*
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@ -28,6 +29,7 @@
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#include <asm/unaligned.h>
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#include <net/arp.h>
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#include <net/firewire.h>
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/* rx limits */
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#define FWNET_MAX_FRAGMENTS 30 /* arbitrary, > TX queue depth */
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@ -45,6 +47,7 @@
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#define IANA_SPECIFIER_ID 0x00005eU
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#define RFC2734_SW_VERSION 0x000001U
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#define RFC3146_SW_VERSION 0x000002U
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#define IEEE1394_GASP_HDR_SIZE 8
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@ -57,32 +60,10 @@
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#define RFC2374_HDR_LASTFRAG 2 /* last fragment */
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#define RFC2374_HDR_INTFRAG 3 /* interior fragment */
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#define RFC2734_HW_ADDR_LEN 16
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struct rfc2734_arp {
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__be16 hw_type; /* 0x0018 */
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__be16 proto_type; /* 0x0806 */
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u8 hw_addr_len; /* 16 */
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u8 ip_addr_len; /* 4 */
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__be16 opcode; /* ARP Opcode */
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/* Above is exactly the same format as struct arphdr */
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__be64 s_uniq_id; /* Sender's 64bit EUI */
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u8 max_rec; /* Sender's max packet size */
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u8 sspd; /* Sender's max speed */
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__be16 fifo_hi; /* hi 16bits of sender's FIFO addr */
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__be32 fifo_lo; /* lo 32bits of sender's FIFO addr */
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__be32 sip; /* Sender's IP Address */
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__be32 tip; /* IP Address of requested hw addr */
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} __packed;
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/* This header format is specific to this driver implementation. */
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#define FWNET_ALEN 8
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#define FWNET_HLEN 10
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struct fwnet_header {
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u8 h_dest[FWNET_ALEN]; /* destination address */
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__be16 h_proto; /* packet type ID field */
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} __packed;
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static bool fwnet_hwaddr_is_multicast(u8 *ha)
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{
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return !!(*ha & 1);
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}
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/* IPv4 and IPv6 encapsulation header */
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struct rfc2734_header {
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@ -191,8 +172,6 @@ struct fwnet_peer {
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struct list_head peer_link;
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struct fwnet_device *dev;
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u64 guid;
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u64 fifo;
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__be32 ip;
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/* guarded by dev->lock */
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struct list_head pd_list; /* received partial datagrams */
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@ -221,6 +200,15 @@ struct fwnet_packet_task {
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u8 enqueued;
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};
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/*
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* Get fifo address embedded in hwaddr
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*/
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static __u64 fwnet_hwaddr_fifo(union fwnet_hwaddr *ha)
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{
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return (u64)get_unaligned_be16(&ha->uc.fifo_hi) << 32
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| get_unaligned_be32(&ha->uc.fifo_lo);
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}
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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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@ -513,10 +501,20 @@ static int fwnet_finish_incoming_packet(struct net_device *net,
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bool is_broadcast, u16 ether_type)
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{
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struct fwnet_device *dev;
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static const __be64 broadcast_hw = cpu_to_be64(~0ULL);
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int status;
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__be64 guid;
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switch (ether_type) {
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case ETH_P_ARP:
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case ETH_P_IP:
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#if IS_ENABLED(CONFIG_IPV6)
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case ETH_P_IPV6:
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#endif
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break;
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default:
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goto err;
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}
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dev = netdev_priv(net);
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/* Write metadata, and then pass to the receive level */
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skb->dev = net;
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@ -524,92 +522,11 @@ static int fwnet_finish_incoming_packet(struct net_device *net,
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/*
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* Parse the encapsulation header. This actually does the job of
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* converting to an ethernet frame header, as well as arp
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* conversion if needed. ARP conversion is easier in this
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* direction, since we are using ethernet as our backend.
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* converting to an ethernet-like pseudo frame header.
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*/
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/*
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* If this is an ARP packet, convert it. First, we want to make
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* use of some of the fields, since they tell us a little bit
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* about the sending machine.
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*/
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if (ether_type == ETH_P_ARP) {
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struct rfc2734_arp *arp1394;
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struct arphdr *arp;
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unsigned char *arp_ptr;
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u64 fifo_addr;
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u64 peer_guid;
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unsigned sspd;
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u16 max_payload;
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struct fwnet_peer *peer;
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unsigned long flags;
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arp1394 = (struct rfc2734_arp *)skb->data;
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arp = (struct arphdr *)skb->data;
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arp_ptr = (unsigned char *)(arp + 1);
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peer_guid = get_unaligned_be64(&arp1394->s_uniq_id);
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fifo_addr = (u64)get_unaligned_be16(&arp1394->fifo_hi) << 32
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| get_unaligned_be32(&arp1394->fifo_lo);
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sspd = arp1394->sspd;
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/* Sanity check. OS X 10.3 PPC reportedly sends 131. */
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if (sspd > SCODE_3200) {
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dev_notice(&net->dev, "sspd %x out of range\n", sspd);
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sspd = SCODE_3200;
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}
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max_payload = fwnet_max_payload(arp1394->max_rec, sspd);
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spin_lock_irqsave(&dev->lock, flags);
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peer = fwnet_peer_find_by_guid(dev, peer_guid);
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if (peer) {
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peer->fifo = fifo_addr;
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if (peer->speed > sspd)
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peer->speed = sspd;
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if (peer->max_payload > max_payload)
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peer->max_payload = max_payload;
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peer->ip = arp1394->sip;
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}
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spin_unlock_irqrestore(&dev->lock, flags);
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if (!peer) {
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dev_notice(&net->dev,
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"no peer for ARP packet from %016llx\n",
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(unsigned long long)peer_guid);
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goto no_peer;
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}
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/*
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* Now that we're done with the 1394 specific stuff, we'll
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* need to alter some of the data. Believe it or not, all
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* that needs to be done is sender_IP_address needs to be
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* moved, the destination hardware address get stuffed
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* in and the hardware address length set to 8.
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*
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* IMPORTANT: The code below overwrites 1394 specific data
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* needed above so keep the munging of the data for the
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* higher level IP stack last.
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*/
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arp->ar_hln = 8;
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/* skip over sender unique id */
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arp_ptr += arp->ar_hln;
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/* move sender IP addr */
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put_unaligned(arp1394->sip, (u32 *)arp_ptr);
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/* skip over sender IP addr */
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arp_ptr += arp->ar_pln;
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if (arp->ar_op == htons(ARPOP_REQUEST))
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memset(arp_ptr, 0, sizeof(u64));
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else
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memcpy(arp_ptr, net->dev_addr, sizeof(u64));
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}
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/* Now add the ethernet header. */
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guid = cpu_to_be64(dev->card->guid);
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if (dev_hard_header(skb, net, ether_type,
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is_broadcast ? &broadcast_hw : &guid,
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is_broadcast ? net->broadcast : net->dev_addr,
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NULL, skb->len) >= 0) {
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struct fwnet_header *eth;
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u16 *rawp;
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@ -618,7 +535,7 @@ static int fwnet_finish_incoming_packet(struct net_device *net,
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skb_reset_mac_header(skb);
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skb_pull(skb, sizeof(*eth));
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eth = (struct fwnet_header *)skb_mac_header(skb);
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if (*eth->h_dest & 1) {
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if (fwnet_hwaddr_is_multicast(eth->h_dest)) {
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if (memcmp(eth->h_dest, net->broadcast,
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net->addr_len) == 0)
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skb->pkt_type = PACKET_BROADCAST;
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@ -652,7 +569,7 @@ static int fwnet_finish_incoming_packet(struct net_device *net,
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return 0;
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no_peer:
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err:
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net->stats.rx_errors++;
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net->stats.rx_dropped++;
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@ -856,7 +773,12 @@ static void fwnet_receive_broadcast(struct fw_iso_context *context,
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ver = be32_to_cpu(buf_ptr[1]) & 0xffffff;
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source_node_id = be32_to_cpu(buf_ptr[0]) >> 16;
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if (specifier_id == IANA_SPECIFIER_ID && ver == RFC2734_SW_VERSION) {
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if (specifier_id == IANA_SPECIFIER_ID &&
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(ver == RFC2734_SW_VERSION
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#if IS_ENABLED(CONFIG_IPV6)
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|| ver == RFC3146_SW_VERSION
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#endif
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)) {
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buf_ptr += 2;
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length -= IEEE1394_GASP_HDR_SIZE;
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fwnet_incoming_packet(dev, buf_ptr, length, source_node_id,
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@ -1059,16 +981,27 @@ static int fwnet_send_packet(struct fwnet_packet_task *ptask)
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u8 *p;
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int generation;
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int node_id;
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unsigned int sw_version;
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/* ptask->generation may not have been set yet */
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generation = dev->card->generation;
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smp_rmb();
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node_id = dev->card->node_id;
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switch (ptask->skb->protocol) {
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default:
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sw_version = RFC2734_SW_VERSION;
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break;
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#if IS_ENABLED(CONFIG_IPV6)
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case htons(ETH_P_IPV6):
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sw_version = RFC3146_SW_VERSION;
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#endif
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}
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p = skb_push(ptask->skb, IEEE1394_GASP_HDR_SIZE);
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put_unaligned_be32(node_id << 16 | IANA_SPECIFIER_ID >> 8, p);
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put_unaligned_be32((IANA_SPECIFIER_ID & 0xff) << 24
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| RFC2734_SW_VERSION, &p[4]);
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| sw_version, &p[4]);
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/* We should not transmit if broadcast_channel.valid == 0. */
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fw_send_request(dev->card, &ptask->transaction,
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@ -1272,13 +1205,9 @@ static int fwnet_open(struct net_device *net)
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struct fwnet_device *dev = netdev_priv(net);
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int ret;
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ret = fwnet_fifo_start(dev);
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if (ret)
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return ret;
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ret = fwnet_broadcast_start(dev);
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if (ret)
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goto out;
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return ret;
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netif_start_queue(net);
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@ -1287,9 +1216,6 @@ static int fwnet_open(struct net_device *net)
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spin_unlock_irq(&dev->lock);
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||||
return 0;
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out:
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fwnet_fifo_stop(dev);
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return ret;
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}
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/* ifdown */
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@ -1298,9 +1224,7 @@ static int fwnet_stop(struct net_device *net)
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struct fwnet_device *dev = netdev_priv(net);
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netif_stop_queue(net);
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||||
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||||
fwnet_broadcast_stop(dev);
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||||
fwnet_fifo_stop(dev);
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||||
|
||||
return 0;
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||||
}
|
||||
@ -1340,19 +1264,27 @@ static netdev_tx_t fwnet_tx(struct sk_buff *skb, struct net_device *net)
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||||
* We might need to rebuild the header on tx failure.
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||||
*/
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||||
memcpy(&hdr_buf, skb->data, sizeof(hdr_buf));
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||||
skb_pull(skb, sizeof(hdr_buf));
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||||
|
||||
proto = hdr_buf.h_proto;
|
||||
|
||||
switch (proto) {
|
||||
case htons(ETH_P_ARP):
|
||||
case htons(ETH_P_IP):
|
||||
#if IS_ENABLED(CONFIG_IPV6)
|
||||
case htons(ETH_P_IPV6):
|
||||
#endif
|
||||
break;
|
||||
default:
|
||||
goto fail;
|
||||
}
|
||||
|
||||
skb_pull(skb, sizeof(hdr_buf));
|
||||
dg_size = skb->len;
|
||||
|
||||
/*
|
||||
* Set the transmission type for the packet. ARP packets and IP
|
||||
* broadcast packets are sent via GASP.
|
||||
*/
|
||||
if (memcmp(hdr_buf.h_dest, net->broadcast, FWNET_ALEN) == 0
|
||||
|| proto == htons(ETH_P_ARP)
|
||||
|| (proto == htons(ETH_P_IP)
|
||||
&& IN_MULTICAST(ntohl(ip_hdr(skb)->daddr)))) {
|
||||
if (fwnet_hwaddr_is_multicast(hdr_buf.h_dest)) {
|
||||
max_payload = dev->broadcast_xmt_max_payload;
|
||||
datagram_label_ptr = &dev->broadcast_xmt_datagramlabel;
|
||||
|
||||
@ -1361,11 +1293,12 @@ static netdev_tx_t fwnet_tx(struct sk_buff *skb, struct net_device *net)
|
||||
ptask->dest_node = IEEE1394_ALL_NODES;
|
||||
ptask->speed = SCODE_100;
|
||||
} else {
|
||||
__be64 guid = get_unaligned((__be64 *)hdr_buf.h_dest);
|
||||
union fwnet_hwaddr *ha = (union fwnet_hwaddr *)hdr_buf.h_dest;
|
||||
__be64 guid = get_unaligned(&ha->uc.uniq_id);
|
||||
u8 generation;
|
||||
|
||||
peer = fwnet_peer_find_by_guid(dev, be64_to_cpu(guid));
|
||||
if (!peer || peer->fifo == FWNET_NO_FIFO_ADDR)
|
||||
if (!peer)
|
||||
goto fail;
|
||||
|
||||
generation = peer->generation;
|
||||
@ -1373,32 +1306,12 @@ static netdev_tx_t fwnet_tx(struct sk_buff *skb, struct net_device *net)
|
||||
max_payload = peer->max_payload;
|
||||
datagram_label_ptr = &peer->datagram_label;
|
||||
|
||||
ptask->fifo_addr = peer->fifo;
|
||||
ptask->fifo_addr = fwnet_hwaddr_fifo(ha);
|
||||
ptask->generation = generation;
|
||||
ptask->dest_node = dest_node;
|
||||
ptask->speed = peer->speed;
|
||||
}
|
||||
|
||||
/* If this is an ARP packet, convert it */
|
||||
if (proto == htons(ETH_P_ARP)) {
|
||||
struct arphdr *arp = (struct arphdr *)skb->data;
|
||||
unsigned char *arp_ptr = (unsigned char *)(arp + 1);
|
||||
struct rfc2734_arp *arp1394 = (struct rfc2734_arp *)skb->data;
|
||||
__be32 ipaddr;
|
||||
|
||||
ipaddr = get_unaligned((__be32 *)(arp_ptr + FWNET_ALEN));
|
||||
|
||||
arp1394->hw_addr_len = RFC2734_HW_ADDR_LEN;
|
||||
arp1394->max_rec = dev->card->max_receive;
|
||||
arp1394->sspd = dev->card->link_speed;
|
||||
|
||||
put_unaligned_be16(dev->local_fifo >> 32,
|
||||
&arp1394->fifo_hi);
|
||||
put_unaligned_be32(dev->local_fifo & 0xffffffff,
|
||||
&arp1394->fifo_lo);
|
||||
put_unaligned(ipaddr, &arp1394->sip);
|
||||
}
|
||||
|
||||
ptask->hdr.w0 = 0;
|
||||
ptask->hdr.w1 = 0;
|
||||
ptask->skb = skb;
|
||||
@ -1513,8 +1426,6 @@ static int fwnet_add_peer(struct fwnet_device *dev,
|
||||
|
||||
peer->dev = dev;
|
||||
peer->guid = (u64)device->config_rom[3] << 32 | device->config_rom[4];
|
||||
peer->fifo = FWNET_NO_FIFO_ADDR;
|
||||
peer->ip = 0;
|
||||
INIT_LIST_HEAD(&peer->pd_list);
|
||||
peer->pdg_size = 0;
|
||||
peer->datagram_label = 0;
|
||||
@ -1544,6 +1455,7 @@ static int fwnet_probe(struct device *_dev)
|
||||
struct fwnet_device *dev;
|
||||
unsigned max_mtu;
|
||||
int ret;
|
||||
union fwnet_hwaddr *ha;
|
||||
|
||||
mutex_lock(&fwnet_device_mutex);
|
||||
|
||||
@ -1574,6 +1486,11 @@ static int fwnet_probe(struct device *_dev)
|
||||
dev->card = card;
|
||||
dev->netdev = net;
|
||||
|
||||
ret = fwnet_fifo_start(dev);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
dev->local_fifo = dev->handler.offset;
|
||||
|
||||
/*
|
||||
* Use the RFC 2734 default 1500 octets or the maximum payload
|
||||
* as initial MTU
|
||||
@ -1583,24 +1500,31 @@ static int fwnet_probe(struct device *_dev)
|
||||
net->mtu = min(1500U, max_mtu);
|
||||
|
||||
/* Set our hardware address while we're at it */
|
||||
put_unaligned_be64(card->guid, net->dev_addr);
|
||||
put_unaligned_be64(~0ULL, net->broadcast);
|
||||
ha = (union fwnet_hwaddr *)net->dev_addr;
|
||||
put_unaligned_be64(card->guid, &ha->uc.uniq_id);
|
||||
ha->uc.max_rec = dev->card->max_receive;
|
||||
ha->uc.sspd = dev->card->link_speed;
|
||||
put_unaligned_be16(dev->local_fifo >> 32, &ha->uc.fifo_hi);
|
||||
put_unaligned_be32(dev->local_fifo & 0xffffffff, &ha->uc.fifo_lo);
|
||||
|
||||
memset(net->broadcast, -1, net->addr_len);
|
||||
|
||||
ret = register_netdev(net);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
list_add_tail(&dev->dev_link, &fwnet_device_list);
|
||||
dev_notice(&net->dev, "IPv4 over IEEE 1394 on card %s\n",
|
||||
dev_notice(&net->dev, "IP over IEEE 1394 on card %s\n",
|
||||
dev_name(card->device));
|
||||
have_dev:
|
||||
ret = fwnet_add_peer(dev, unit, device);
|
||||
if (ret && allocated_netdev) {
|
||||
unregister_netdev(net);
|
||||
list_del(&dev->dev_link);
|
||||
}
|
||||
out:
|
||||
if (ret && allocated_netdev)
|
||||
fwnet_fifo_stop(dev);
|
||||
free_netdev(net);
|
||||
}
|
||||
|
||||
mutex_unlock(&fwnet_device_mutex);
|
||||
|
||||
@ -1633,14 +1557,14 @@ static int fwnet_remove(struct device *_dev)
|
||||
mutex_lock(&fwnet_device_mutex);
|
||||
|
||||
net = dev->netdev;
|
||||
if (net && peer->ip)
|
||||
arp_invalidate(net, peer->ip);
|
||||
|
||||
fwnet_remove_peer(peer, dev);
|
||||
|
||||
if (list_empty(&dev->peer_list)) {
|
||||
unregister_netdev(net);
|
||||
|
||||
fwnet_fifo_stop(dev);
|
||||
|
||||
for (i = 0; dev->queued_datagrams && i < 5; i++)
|
||||
ssleep(1);
|
||||
WARN_ON(dev->queued_datagrams);
|
||||
@ -1679,6 +1603,14 @@ static const struct ieee1394_device_id fwnet_id_table[] = {
|
||||
.specifier_id = IANA_SPECIFIER_ID,
|
||||
.version = RFC2734_SW_VERSION,
|
||||
},
|
||||
#if IS_ENABLED(CONFIG_IPV6)
|
||||
{
|
||||
.match_flags = IEEE1394_MATCH_SPECIFIER_ID |
|
||||
IEEE1394_MATCH_VERSION,
|
||||
.specifier_id = IANA_SPECIFIER_ID,
|
||||
.version = RFC3146_SW_VERSION,
|
||||
},
|
||||
#endif
|
||||
{ }
|
||||
};
|
||||
|
||||
@ -1716,6 +1648,30 @@ static struct fw_descriptor rfc2374_unit_directory = {
|
||||
.data = rfc2374_unit_directory_data
|
||||
};
|
||||
|
||||
#if IS_ENABLED(CONFIG_IPV6)
|
||||
static const u32 rfc3146_unit_directory_data[] = {
|
||||
0x00040000, /* directory_length */
|
||||
0x1200005e, /* unit_specifier_id: IANA */
|
||||
0x81000003, /* textual descriptor offset */
|
||||
0x13000002, /* unit_sw_version: RFC 3146 */
|
||||
0x81000005, /* textual descriptor offset */
|
||||
0x00030000, /* descriptor_length */
|
||||
0x00000000, /* text */
|
||||
0x00000000, /* minimal ASCII, en */
|
||||
0x49414e41, /* I A N A */
|
||||
0x00030000, /* descriptor_length */
|
||||
0x00000000, /* text */
|
||||
0x00000000, /* minimal ASCII, en */
|
||||
0x49507636, /* I P v 6 */
|
||||
};
|
||||
|
||||
static struct fw_descriptor rfc3146_unit_directory = {
|
||||
.length = ARRAY_SIZE(rfc3146_unit_directory_data),
|
||||
.key = (CSR_DIRECTORY | CSR_UNIT) << 24,
|
||||
.data = rfc3146_unit_directory_data
|
||||
};
|
||||
#endif
|
||||
|
||||
static int __init fwnet_init(void)
|
||||
{
|
||||
int err;
|
||||
@ -1724,11 +1680,17 @@ static int __init fwnet_init(void)
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
#if IS_ENABLED(CONFIG_IPV6)
|
||||
err = fw_core_add_descriptor(&rfc3146_unit_directory);
|
||||
if (err)
|
||||
goto out;
|
||||
#endif
|
||||
|
||||
fwnet_packet_task_cache = kmem_cache_create("packet_task",
|
||||
sizeof(struct fwnet_packet_task), 0, 0, NULL);
|
||||
if (!fwnet_packet_task_cache) {
|
||||
err = -ENOMEM;
|
||||
goto out;
|
||||
goto out2;
|
||||
}
|
||||
|
||||
err = driver_register(&fwnet_driver.driver);
|
||||
@ -1736,7 +1698,11 @@ static int __init fwnet_init(void)
|
||||
return 0;
|
||||
|
||||
kmem_cache_destroy(fwnet_packet_task_cache);
|
||||
out2:
|
||||
#if IS_ENABLED(CONFIG_IPV6)
|
||||
fw_core_remove_descriptor(&rfc3146_unit_directory);
|
||||
out:
|
||||
#endif
|
||||
fw_core_remove_descriptor(&rfc2374_unit_directory);
|
||||
|
||||
return err;
|
||||
@ -1747,11 +1713,14 @@ static void __exit fwnet_cleanup(void)
|
||||
{
|
||||
driver_unregister(&fwnet_driver.driver);
|
||||
kmem_cache_destroy(fwnet_packet_task_cache);
|
||||
#if IS_ENABLED(CONFIG_IPV6)
|
||||
fw_core_remove_descriptor(&rfc3146_unit_directory);
|
||||
#endif
|
||||
fw_core_remove_descriptor(&rfc2374_unit_directory);
|
||||
}
|
||||
module_exit(fwnet_cleanup);
|
||||
|
||||
MODULE_AUTHOR("Jay Fenlason <fenlason@redhat.com>");
|
||||
MODULE_DESCRIPTION("IPv4 over IEEE1394 as per RFC 2734");
|
||||
MODULE_DESCRIPTION("IP over IEEE1394 as per RFC 2734/3146");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(ieee1394, fwnet_id_table);
|
||||
|
@ -33,7 +33,15 @@ static inline struct arphdr *arp_hdr(const struct sk_buff *skb)
|
||||
|
||||
static inline int arp_hdr_len(struct net_device *dev)
|
||||
{
|
||||
switch (dev->type) {
|
||||
#if IS_ENABLED(CONFIG_FIREWIRE_NET)
|
||||
case ARPHRD_IEEE1394:
|
||||
/* ARP header, device address and 2 IP addresses */
|
||||
return sizeof(struct arphdr) + dev->addr_len + sizeof(u32) * 2;
|
||||
#endif
|
||||
default:
|
||||
/* ARP header, plus 2 device addresses, plus 2 IP addresses. */
|
||||
return sizeof(struct arphdr) + (dev->addr_len + sizeof(u32)) * 2;
|
||||
}
|
||||
}
|
||||
#endif /* _LINUX_IF_ARP_H */
|
||||
|
25
include/net/firewire.h
Normal file
25
include/net/firewire.h
Normal file
@ -0,0 +1,25 @@
|
||||
#ifndef _NET_FIREWIRE_H
|
||||
#define _NET_FIREWIRE_H
|
||||
|
||||
/* Pseudo L2 address */
|
||||
#define FWNET_ALEN 16
|
||||
union fwnet_hwaddr {
|
||||
u8 u[FWNET_ALEN];
|
||||
/* "Hardware address" defined in RFC2734/RF3146 */
|
||||
struct {
|
||||
__be64 uniq_id; /* EUI-64 */
|
||||
u8 max_rec; /* max packet size */
|
||||
u8 sspd; /* max speed */
|
||||
__be16 fifo_hi; /* hi 16bits of FIFO addr */
|
||||
__be32 fifo_lo; /* lo 32bits of FIFO addr */
|
||||
} __packed uc;
|
||||
};
|
||||
|
||||
/* Pseudo L2 Header */
|
||||
#define FWNET_HLEN 18
|
||||
struct fwnet_header {
|
||||
u8 h_dest[FWNET_ALEN]; /* destination address */
|
||||
__be16 h_proto; /* packet type ID field */
|
||||
} __packed;
|
||||
|
||||
#endif
|
@ -654,11 +654,19 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
|
||||
arp_ptr += dev->addr_len;
|
||||
memcpy(arp_ptr, &src_ip, 4);
|
||||
arp_ptr += 4;
|
||||
|
||||
switch (dev->type) {
|
||||
#if IS_ENABLED(CONFIG_FIREWIRE_NET)
|
||||
case ARPHRD_IEEE1394:
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
if (target_hw != NULL)
|
||||
memcpy(arp_ptr, target_hw, dev->addr_len);
|
||||
else
|
||||
memset(arp_ptr, 0, dev->addr_len);
|
||||
arp_ptr += dev->addr_len;
|
||||
}
|
||||
memcpy(arp_ptr, &dest_ip, 4);
|
||||
|
||||
return skb;
|
||||
@ -781,7 +789,14 @@ static int arp_process(struct sk_buff *skb)
|
||||
arp_ptr += dev->addr_len;
|
||||
memcpy(&sip, arp_ptr, 4);
|
||||
arp_ptr += 4;
|
||||
switch (dev_type) {
|
||||
#if IS_ENABLED(CONFIG_FIREWIRE_NET)
|
||||
case ARPHRD_IEEE1394:
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
arp_ptr += dev->addr_len;
|
||||
}
|
||||
memcpy(&tip, arp_ptr, 4);
|
||||
/*
|
||||
* Check for bad requests for 127.x.x.x and requests for multicast
|
||||
|
@ -70,6 +70,7 @@
|
||||
#include <net/snmp.h>
|
||||
|
||||
#include <net/af_ieee802154.h>
|
||||
#include <net/firewire.h>
|
||||
#include <net/ipv6.h>
|
||||
#include <net/protocol.h>
|
||||
#include <net/ndisc.h>
|
||||
@ -1738,6 +1739,20 @@ static int addrconf_ifid_eui64(u8 *eui, struct net_device *dev)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int addrconf_ifid_ieee1394(u8 *eui, struct net_device *dev)
|
||||
{
|
||||
union fwnet_hwaddr *ha;
|
||||
|
||||
if (dev->addr_len != FWNET_ALEN)
|
||||
return -1;
|
||||
|
||||
ha = (union fwnet_hwaddr *)dev->dev_addr;
|
||||
|
||||
memcpy(eui, &ha->uc.uniq_id, sizeof(ha->uc.uniq_id));
|
||||
eui[0] ^= 2;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int addrconf_ifid_arcnet(u8 *eui, struct net_device *dev)
|
||||
{
|
||||
/* XXX: inherit EUI-64 from other interface -- yoshfuji */
|
||||
@ -1802,6 +1817,8 @@ static int ipv6_generate_eui64(u8 *eui, struct net_device *dev)
|
||||
return addrconf_ifid_gre(eui, dev);
|
||||
case ARPHRD_IEEE802154:
|
||||
return addrconf_ifid_eui64(eui, dev);
|
||||
case ARPHRD_IEEE1394:
|
||||
return addrconf_ifid_ieee1394(eui, dev);
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
@ -2643,7 +2660,8 @@ static void addrconf_dev_config(struct net_device *dev)
|
||||
(dev->type != ARPHRD_FDDI) &&
|
||||
(dev->type != ARPHRD_ARCNET) &&
|
||||
(dev->type != ARPHRD_INFINIBAND) &&
|
||||
(dev->type != ARPHRD_IEEE802154)) {
|
||||
(dev->type != ARPHRD_IEEE802154) &&
|
||||
(dev->type != ARPHRD_IEEE1394)) {
|
||||
/* Alas, we support only Ethernet autoconfiguration. */
|
||||
return;
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user