firewire net, ipv6: IPv6 over Firewire (RFC3146) support.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki / 吉藤英明
David S. Miller
parent
6752c8db8e
commit
cb6bf35502
@ -47,9 +47,9 @@ config FIREWIRE_NET
|
||||
tristate "IP networking over 1394"
|
||||
depends on FIREWIRE && INET
|
||||
help
|
||||
This enables IPv4 over IEEE 1394, providing IP connectivity with
|
||||
other implementations of RFC 2734 as found on several operating
|
||||
systems. Multicast support is currently limited.
|
||||
This enables IPv4/IPv6 over IEEE 1394, providing IP connectivity
|
||||
with other implementations of RFC 2734/3146 as found on several
|
||||
operating systems. Multicast support is currently limited.
|
||||
|
||||
To compile this driver as a module, say M here: The module will be
|
||||
called firewire-net.
|
||||
|
||||
@ -1,5 +1,6 @@
|
||||
/*
|
||||
* IPv4 over IEEE 1394, per RFC 2734
|
||||
* IPv6 over IEEE 1394, per RFC 3146
|
||||
*
|
||||
* Copyright (C) 2009 Jay Fenlason <fenlason@redhat.com>
|
||||
*
|
||||
@ -46,6 +47,7 @@
|
||||
|
||||
#define IANA_SPECIFIER_ID 0x00005eU
|
||||
#define RFC2734_SW_VERSION 0x000001U
|
||||
#define RFC3146_SW_VERSION 0x000002U
|
||||
|
||||
#define IEEE1394_GASP_HDR_SIZE 8
|
||||
|
||||
@ -505,6 +507,9 @@ static int fwnet_finish_incoming_packet(struct net_device *net,
|
||||
switch (ether_type) {
|
||||
case ETH_P_ARP:
|
||||
case ETH_P_IP:
|
||||
#if IS_ENABLED(CONFIG_IPV6)
|
||||
case ETH_P_IPV6:
|
||||
#endif
|
||||
break;
|
||||
default:
|
||||
goto err;
|
||||
@ -768,7 +773,12 @@ static void fwnet_receive_broadcast(struct fw_iso_context *context,
|
||||
ver = be32_to_cpu(buf_ptr[1]) & 0xffffff;
|
||||
source_node_id = be32_to_cpu(buf_ptr[0]) >> 16;
|
||||
|
||||
if (specifier_id == IANA_SPECIFIER_ID && ver == RFC2734_SW_VERSION) {
|
||||
if (specifier_id == IANA_SPECIFIER_ID &&
|
||||
(ver == RFC2734_SW_VERSION
|
||||
#if IS_ENABLED(CONFIG_IPV6)
|
||||
|| ver == RFC3146_SW_VERSION
|
||||
#endif
|
||||
)) {
|
||||
buf_ptr += 2;
|
||||
length -= IEEE1394_GASP_HDR_SIZE;
|
||||
fwnet_incoming_packet(dev, buf_ptr, length, source_node_id,
|
||||
@ -971,16 +981,27 @@ static int fwnet_send_packet(struct fwnet_packet_task *ptask)
|
||||
u8 *p;
|
||||
int generation;
|
||||
int node_id;
|
||||
unsigned int sw_version;
|
||||
|
||||
/* ptask->generation may not have been set yet */
|
||||
generation = dev->card->generation;
|
||||
smp_rmb();
|
||||
node_id = dev->card->node_id;
|
||||
|
||||
switch (ptask->skb->protocol) {
|
||||
default:
|
||||
sw_version = RFC2734_SW_VERSION;
|
||||
break;
|
||||
#if IS_ENABLED(CONFIG_IPV6)
|
||||
case htons(ETH_P_IPV6):
|
||||
sw_version = RFC3146_SW_VERSION;
|
||||
#endif
|
||||
}
|
||||
|
||||
p = skb_push(ptask->skb, IEEE1394_GASP_HDR_SIZE);
|
||||
put_unaligned_be32(node_id << 16 | IANA_SPECIFIER_ID >> 8, p);
|
||||
put_unaligned_be32((IANA_SPECIFIER_ID & 0xff) << 24
|
||||
| RFC2734_SW_VERSION, &p[4]);
|
||||
| sw_version, &p[4]);
|
||||
|
||||
/* We should not transmit if broadcast_channel.valid == 0. */
|
||||
fw_send_request(dev->card, &ptask->transaction,
|
||||
@ -1248,6 +1269,9 @@ static netdev_tx_t fwnet_tx(struct sk_buff *skb, struct net_device *net)
|
||||
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;
|
||||
@ -1490,7 +1514,7 @@ static int fwnet_probe(struct device *_dev)
|
||||
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);
|
||||
@ -1579,6 +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
|
||||
{ }
|
||||
};
|
||||
|
||||
@ -1616,6 +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;
|
||||
@ -1624,11 +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);
|
||||
@ -1636,7 +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;
|
||||
@ -1647,11 +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);
|
||||
|
||||
@ -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