}
#define LOWPAN_PRIV_SIZE(llpriv_size) \
- (sizeof(struct lowpan_priv) + llpriv_size)
+ (sizeof(struct lowpan_dev) + llpriv_size)
enum lowpan_lltypes {
LOWPAN_LLTYPE_BTLE,
return test_bit(LOWPAN_IPHC_CTX_FLAG_COMPRESSION, &ctx->flags);
}
-struct lowpan_priv {
+struct lowpan_dev {
enum lowpan_lltypes lltype;
struct dentry *iface_debugfs;
struct lowpan_iphc_ctx_table ctx;
};
static inline
-struct lowpan_priv *lowpan_priv(const struct net_device *dev)
+struct lowpan_dev *lowpan_dev(const struct net_device *dev)
{
return netdev_priv(dev);
}
dev->mtu = IPV6_MIN_MTU;
dev->priv_flags |= IFF_NO_QUEUE;
- lowpan_priv(dev)->lltype = lltype;
+ lowpan_dev(dev)->lltype = lltype;
- spin_lock_init(&lowpan_priv(dev)->ctx.lock);
+ spin_lock_init(&lowpan_dev(dev)->ctx.lock);
for (i = 0; i < LOWPAN_IPHC_CTX_TABLE_SIZE; i++)
- lowpan_priv(dev)->ctx.table[i].id = i;
+ lowpan_dev(dev)->ctx.table[i].id = i;
ret = register_netdevice(dev);
if (ret < 0)
case NETDEV_DOWN:
for (i = 0; i < LOWPAN_IPHC_CTX_TABLE_SIZE; i++)
clear_bit(LOWPAN_IPHC_CTX_FLAG_ACTIVE,
- &lowpan_priv(dev)->ctx.table[i].flags);
+ &lowpan_dev(dev)->ctx.table[i].flags);
break;
default:
return NOTIFY_DONE;
static int lowpan_dev_debugfs_ctx_init(struct net_device *dev,
struct dentry *ctx, u8 id)
{
- struct lowpan_priv *lpriv = lowpan_priv(dev);
+ struct lowpan_dev *ldev = lowpan_dev(dev);
struct dentry *dentry, *root;
char buf[32];
return -EINVAL;
dentry = debugfs_create_file("active", 0644, root,
- &lpriv->ctx.table[id],
+ &ldev->ctx.table[id],
&lowpan_ctx_flag_active_fops);
if (!dentry)
return -EINVAL;
dentry = debugfs_create_file("compression", 0644, root,
- &lpriv->ctx.table[id],
+ &ldev->ctx.table[id],
&lowpan_ctx_flag_c_fops);
if (!dentry)
return -EINVAL;
dentry = debugfs_create_file("prefix", 0644, root,
- &lpriv->ctx.table[id],
+ &ldev->ctx.table[id],
&lowpan_ctx_pfx_fops);
if (!dentry)
return -EINVAL;
dentry = debugfs_create_file("prefix_len", 0644, root,
- &lpriv->ctx.table[id],
+ &ldev->ctx.table[id],
&lowpan_ctx_plen_fops);
if (!dentry)
return -EINVAL;
int lowpan_dev_debugfs_init(struct net_device *dev)
{
- struct lowpan_priv *lpriv = lowpan_priv(dev);
+ struct lowpan_dev *ldev = lowpan_dev(dev);
struct dentry *contexts, *dentry;
int ret, i;
/* creating the root */
- lpriv->iface_debugfs = debugfs_create_dir(dev->name, lowpan_debugfs);
- if (!lpriv->iface_debugfs)
+ ldev->iface_debugfs = debugfs_create_dir(dev->name, lowpan_debugfs);
+ if (!ldev->iface_debugfs)
goto fail;
- contexts = debugfs_create_dir("contexts", lpriv->iface_debugfs);
+ contexts = debugfs_create_dir("contexts", ldev->iface_debugfs);
if (!contexts)
goto remove_root;
dentry = debugfs_create_file("show", 0644, contexts,
- &lowpan_priv(dev)->ctx,
+ &lowpan_dev(dev)->ctx,
&lowpan_context_fops);
if (!dentry)
goto remove_root;
void lowpan_dev_debugfs_exit(struct net_device *dev)
{
- debugfs_remove_recursive(lowpan_priv(dev)->iface_debugfs);
+ debugfs_remove_recursive(lowpan_dev(dev)->iface_debugfs);
}
int __init lowpan_debugfs_init(void)
static struct lowpan_iphc_ctx *
lowpan_iphc_ctx_get_by_id(const struct net_device *dev, u8 id)
{
- struct lowpan_iphc_ctx *ret = &lowpan_priv(dev)->ctx.table[id];
+ struct lowpan_iphc_ctx *ret = &lowpan_dev(dev)->ctx.table[id];
if (!lowpan_iphc_ctx_is_active(ret))
return NULL;
lowpan_iphc_ctx_get_by_addr(const struct net_device *dev,
const struct in6_addr *addr)
{
- struct lowpan_iphc_ctx *table = lowpan_priv(dev)->ctx.table;
+ struct lowpan_iphc_ctx *table = lowpan_dev(dev)->ctx.table;
struct lowpan_iphc_ctx *ret = NULL;
struct in6_addr addr_pfx;
u8 addr_plen;
lowpan_iphc_ctx_get_by_mcast_addr(const struct net_device *dev,
const struct in6_addr *addr)
{
- struct lowpan_iphc_ctx *table = lowpan_priv(dev)->ctx.table;
+ struct lowpan_iphc_ctx *table = lowpan_dev(dev)->ctx.table;
struct lowpan_iphc_ctx *ret = NULL;
struct in6_addr addr_mcast, network_pfx = {};
int i;
case LOWPAN_IPHC_SAM_11:
case LOWPAN_IPHC_DAM_11:
fail = false;
- switch (lowpan_priv(dev)->lltype) {
+ switch (lowpan_dev(dev)->lltype) {
case LOWPAN_LLTYPE_IEEE802154:
iphc_uncompress_802154_lladdr(ipaddr, lladdr);
break;
case LOWPAN_IPHC_SAM_11:
case LOWPAN_IPHC_DAM_11:
fail = false;
- switch (lowpan_priv(dev)->lltype) {
+ switch (lowpan_dev(dev)->lltype) {
case LOWPAN_LLTYPE_IEEE802154:
iphc_uncompress_802154_lladdr(ipaddr, lladdr);
break;
}
if (iphc1 & LOWPAN_IPHC_SAC) {
- spin_lock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_lock_bh(&lowpan_dev(dev)->ctx.lock);
ci = lowpan_iphc_ctx_get_by_id(dev, LOWPAN_IPHC_CID_SCI(cid));
if (!ci) {
- spin_unlock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_unlock_bh(&lowpan_dev(dev)->ctx.lock);
return -EINVAL;
}
pr_debug("SAC bit is set. Handle context based source address.\n");
err = uncompress_ctx_addr(skb, dev, ci, &hdr.saddr,
iphc1 & LOWPAN_IPHC_SAM_MASK, saddr);
- spin_unlock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_unlock_bh(&lowpan_dev(dev)->ctx.lock);
} else {
/* Source address uncompression */
pr_debug("source address stateless compression\n");
switch (iphc1 & (LOWPAN_IPHC_M | LOWPAN_IPHC_DAC)) {
case LOWPAN_IPHC_M | LOWPAN_IPHC_DAC:
- spin_lock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_lock_bh(&lowpan_dev(dev)->ctx.lock);
ci = lowpan_iphc_ctx_get_by_id(dev, LOWPAN_IPHC_CID_DCI(cid));
if (!ci) {
- spin_unlock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_unlock_bh(&lowpan_dev(dev)->ctx.lock);
return -EINVAL;
}
err = lowpan_uncompress_multicast_ctx_daddr(skb, ci,
&hdr.daddr,
iphc1 & LOWPAN_IPHC_DAM_MASK);
- spin_unlock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_unlock_bh(&lowpan_dev(dev)->ctx.lock);
break;
case LOWPAN_IPHC_M:
/* multicast */
iphc1 & LOWPAN_IPHC_DAM_MASK);
break;
case LOWPAN_IPHC_DAC:
- spin_lock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_lock_bh(&lowpan_dev(dev)->ctx.lock);
ci = lowpan_iphc_ctx_get_by_id(dev, LOWPAN_IPHC_CID_DCI(cid));
if (!ci) {
- spin_unlock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_unlock_bh(&lowpan_dev(dev)->ctx.lock);
return -EINVAL;
}
pr_debug("DAC bit is set. Handle context based destination address.\n");
err = uncompress_ctx_addr(skb, dev, ci, &hdr.daddr,
iphc1 & LOWPAN_IPHC_DAM_MASK, daddr);
- spin_unlock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_unlock_bh(&lowpan_dev(dev)->ctx.lock);
break;
default:
err = uncompress_addr(skb, dev, &hdr.daddr,
return err;
}
- switch (lowpan_priv(dev)->lltype) {
+ switch (lowpan_dev(dev)->lltype) {
case LOWPAN_LLTYPE_IEEE802154:
if (lowpan_802154_cb(skb)->d_size)
hdr.payload_len = htons(lowpan_802154_cb(skb)->d_size -
skb->data, skb->len);
ipv6_daddr_type = ipv6_addr_type(&hdr->daddr);
- spin_lock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_lock_bh(&lowpan_dev(dev)->ctx.lock);
if (ipv6_daddr_type & IPV6_ADDR_MULTICAST)
dci = lowpan_iphc_ctx_get_by_mcast_addr(dev, &hdr->daddr);
else
memcpy(&dci_entry, dci, sizeof(*dci));
cid |= dci->id;
}
- spin_unlock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_unlock_bh(&lowpan_dev(dev)->ctx.lock);
- spin_lock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_lock_bh(&lowpan_dev(dev)->ctx.lock);
sci = lowpan_iphc_ctx_get_by_addr(dev, &hdr->saddr);
if (sci) {
memcpy(&sci_entry, sci, sizeof(*sci));
cid |= (sci->id << 4);
}
- spin_unlock_bh(&lowpan_priv(dev)->ctx.lock);
+ spin_unlock_bh(&lowpan_dev(dev)->ctx.lock);
/* if cid is zero it will be compressed */
if (cid) {
* here, we obtain the hint from the remaining size of the
* frame
*/
- switch (lowpan_priv(skb->dev)->lltype) {
+ switch (lowpan_dev(skb->dev)->lltype) {
case LOWPAN_LLTYPE_IEEE802154:
if (lowpan_802154_cb(skb)->d_size)
uh.len = htons(lowpan_802154_cb(skb)->d_size -
struct in6_addr peer_addr;
};
-struct lowpan_dev {
+struct lowpan_btle_dev {
struct list_head list;
struct hci_dev *hdev;
struct delayed_work notify_peers;
};
-static inline struct lowpan_dev *lowpan_dev(const struct net_device *netdev)
+static inline struct lowpan_btle_dev *
+lowpan_btle_dev(const struct net_device *netdev)
{
- return (struct lowpan_dev *)lowpan_priv(netdev)->priv;
+ return (struct lowpan_btle_dev *)lowpan_dev(netdev)->priv;
}
-static inline void peer_add(struct lowpan_dev *dev, struct lowpan_peer *peer)
+static inline void peer_add(struct lowpan_btle_dev *dev,
+ struct lowpan_peer *peer)
{
list_add_rcu(&peer->list, &dev->peers);
atomic_inc(&dev->peer_count);
}
-static inline bool peer_del(struct lowpan_dev *dev, struct lowpan_peer *peer)
+static inline bool peer_del(struct lowpan_btle_dev *dev,
+ struct lowpan_peer *peer)
{
list_del_rcu(&peer->list);
kfree_rcu(peer, rcu);
return false;
}
-static inline struct lowpan_peer *peer_lookup_ba(struct lowpan_dev *dev,
+static inline struct lowpan_peer *peer_lookup_ba(struct lowpan_btle_dev *dev,
bdaddr_t *ba, __u8 type)
{
struct lowpan_peer *peer;
return NULL;
}
-static inline struct lowpan_peer *__peer_lookup_chan(struct lowpan_dev *dev,
- struct l2cap_chan *chan)
+static inline struct lowpan_peer *
+__peer_lookup_chan(struct lowpan_btle_dev *dev, struct l2cap_chan *chan)
{
struct lowpan_peer *peer;
return NULL;
}
-static inline struct lowpan_peer *__peer_lookup_conn(struct lowpan_dev *dev,
- struct l2cap_conn *conn)
+static inline struct lowpan_peer *
+__peer_lookup_conn(struct lowpan_btle_dev *dev, struct l2cap_conn *conn)
{
struct lowpan_peer *peer;
return NULL;
}
-static inline struct lowpan_peer *peer_lookup_dst(struct lowpan_dev *dev,
+static inline struct lowpan_peer *peer_lookup_dst(struct lowpan_btle_dev *dev,
struct in6_addr *daddr,
struct sk_buff *skb)
{
static struct lowpan_peer *lookup_peer(struct l2cap_conn *conn)
{
- struct lowpan_dev *entry;
+ struct lowpan_btle_dev *entry;
struct lowpan_peer *peer = NULL;
rcu_read_lock();
return peer;
}
-static struct lowpan_dev *lookup_dev(struct l2cap_conn *conn)
+static struct lowpan_btle_dev *lookup_dev(struct l2cap_conn *conn)
{
- struct lowpan_dev *entry;
- struct lowpan_dev *dev = NULL;
+ struct lowpan_btle_dev *entry;
+ struct lowpan_btle_dev *dev = NULL;
rcu_read_lock();
struct l2cap_chan *chan)
{
const u8 *saddr, *daddr;
- struct lowpan_dev *dev;
+ struct lowpan_btle_dev *dev;
struct lowpan_peer *peer;
- dev = lowpan_dev(netdev);
+ dev = lowpan_btle_dev(netdev);
rcu_read_lock();
peer = __peer_lookup_chan(dev, chan);
/* Packet from BT LE device */
static int chan_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
{
- struct lowpan_dev *dev;
+ struct lowpan_btle_dev *dev;
struct lowpan_peer *peer;
int err;
bdaddr_t *peer_addr, u8 *peer_addr_type)
{
struct in6_addr ipv6_daddr;
- struct lowpan_dev *dev;
+ struct lowpan_btle_dev *dev;
struct lowpan_peer *peer;
bdaddr_t addr, *any = BDADDR_ANY;
u8 *daddr = any->b;
int err, status = 0;
- dev = lowpan_dev(netdev);
+ dev = lowpan_btle_dev(netdev);
memcpy(&ipv6_daddr, &lowpan_cb(skb)->addr, sizeof(ipv6_daddr));
static int send_mcast_pkt(struct sk_buff *skb, struct net_device *netdev)
{
struct sk_buff *local_skb;
- struct lowpan_dev *entry;
+ struct lowpan_btle_dev *entry;
int err = 0;
rcu_read_lock();
list_for_each_entry_rcu(entry, &bt_6lowpan_devices, list) {
struct lowpan_peer *pentry;
- struct lowpan_dev *dev;
+ struct lowpan_btle_dev *dev;
if (entry->netdev != netdev)
continue;
- dev = lowpan_dev(entry->netdev);
+ dev = lowpan_btle_dev(entry->netdev);
list_for_each_entry_rcu(pentry, &dev->peers, list) {
int ret;
static void do_notify_peers(struct work_struct *work)
{
- struct lowpan_dev *dev = container_of(work, struct lowpan_dev,
- notify_peers.work);
+ struct lowpan_btle_dev *dev = container_of(work, struct lowpan_btle_dev,
+ notify_peers.work);
netdev_notify_peers(dev->netdev); /* send neighbour adv at startup */
}
}
static struct l2cap_chan *add_peer_chan(struct l2cap_chan *chan,
- struct lowpan_dev *dev)
+ struct lowpan_btle_dev *dev)
{
struct lowpan_peer *peer;
return peer->chan;
}
-static int setup_netdev(struct l2cap_chan *chan, struct lowpan_dev **dev)
+static int setup_netdev(struct l2cap_chan *chan, struct lowpan_btle_dev **dev)
{
struct net_device *netdev;
int err = 0;
- netdev = alloc_netdev(LOWPAN_PRIV_SIZE(sizeof(struct lowpan_dev)),
+ netdev = alloc_netdev(LOWPAN_PRIV_SIZE(sizeof(struct lowpan_btle_dev)),
IFACE_NAME_TEMPLATE, NET_NAME_UNKNOWN,
netdev_setup);
if (!netdev)
SET_NETDEV_DEV(netdev, &chan->conn->hcon->hdev->dev);
SET_NETDEV_DEVTYPE(netdev, &bt_type);
- *dev = lowpan_dev(netdev);
+ *dev = lowpan_btle_dev(netdev);
(*dev)->netdev = netdev;
(*dev)->hdev = chan->conn->hcon->hdev;
INIT_LIST_HEAD(&(*dev)->peers);
static inline void chan_ready_cb(struct l2cap_chan *chan)
{
- struct lowpan_dev *dev;
+ struct lowpan_btle_dev *dev;
dev = lookup_dev(chan->conn);
static void delete_netdev(struct work_struct *work)
{
- struct lowpan_dev *entry = container_of(work, struct lowpan_dev,
- delete_netdev);
+ struct lowpan_btle_dev *entry = container_of(work,
+ struct lowpan_btle_dev,
+ delete_netdev);
lowpan_unregister_netdev(entry->netdev);
static void chan_close_cb(struct l2cap_chan *chan)
{
- struct lowpan_dev *entry;
- struct lowpan_dev *dev = NULL;
+ struct lowpan_btle_dev *entry;
+ struct lowpan_btle_dev *dev = NULL;
struct lowpan_peer *peer;
int err = -ENOENT;
bool last = false, remove = true;
spin_lock(&devices_lock);
list_for_each_entry_rcu(entry, &bt_6lowpan_devices, list) {
- dev = lowpan_dev(entry->netdev);
+ dev = lowpan_btle_dev(entry->netdev);
peer = __peer_lookup_chan(dev, chan);
if (peer) {
last = peer_del(dev, peer);
static void disconnect_all_peers(void)
{
- struct lowpan_dev *entry;
+ struct lowpan_btle_dev *entry;
struct lowpan_peer *peer, *tmp_peer, *new_peer;
struct list_head peers;
static int lowpan_control_show(struct seq_file *f, void *ptr)
{
- struct lowpan_dev *entry;
+ struct lowpan_btle_dev *entry;
struct lowpan_peer *peer;
spin_lock(&devices_lock);
static void disconnect_devices(void)
{
- struct lowpan_dev *entry, *tmp, *new_dev;
+ struct lowpan_btle_dev *entry, *tmp, *new_dev;
struct list_head devices;
INIT_LIST_HEAD(&devices);
unsigned long event, void *ptr)
{
struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
- struct lowpan_dev *entry;
+ struct lowpan_btle_dev *entry;
if (netdev->type != ARPHRD_6LOWPAN)
return NOTIFY_DONE;
}
/* private device info */
-struct lowpan_dev_info {
+struct lowpan_802154_dev {
struct net_device *wdev; /* wpan device ptr */
u16 fragment_tag;
};
static inline struct
-lowpan_dev_info *lowpan_dev_info(const struct net_device *dev)
+lowpan_802154_dev *lowpan_802154_dev(const struct net_device *dev)
{
- return (struct lowpan_dev_info *)lowpan_priv(dev)->priv;
+ return (struct lowpan_802154_dev *)lowpan_dev(dev)->priv;
}
int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type);
return -EBUSY;
}
- lowpan_dev_info(ldev)->wdev = wdev;
+ lowpan_802154_dev(ldev)->wdev = wdev;
/* Set the lowpan hardware address to the wpan hardware address. */
memcpy(ldev->dev_addr, wdev->dev_addr, IEEE802154_ADDR_LEN);
/* We need headroom for possible wpan_dev_hard_header call and tailroom
static void lowpan_dellink(struct net_device *ldev, struct list_head *head)
{
- struct net_device *wdev = lowpan_dev_info(ldev)->wdev;
+ struct net_device *wdev = lowpan_802154_dev(ldev)->wdev;
ASSERT_RTNL();
static struct rtnl_link_ops lowpan_link_ops __read_mostly = {
.kind = "lowpan",
- .priv_size = LOWPAN_PRIV_SIZE(sizeof(struct lowpan_dev_info)),
+ .priv_size = LOWPAN_PRIV_SIZE(sizeof(struct lowpan_802154_dev)),
.setup = lowpan_setup,
.newlink = lowpan_newlink,
.dellink = lowpan_dellink,
lowpan_alloc_frag(struct sk_buff *skb, int size,
const struct ieee802154_hdr *master_hdr, bool frag1)
{
- struct net_device *wdev = lowpan_dev_info(skb->dev)->wdev;
+ struct net_device *wdev = lowpan_802154_dev(skb->dev)->wdev;
struct sk_buff *frag;
int rc;
int frag_cap, frag_len, payload_cap, rc;
int skb_unprocessed, skb_offset;
- frag_tag = htons(lowpan_dev_info(ldev)->fragment_tag);
- lowpan_dev_info(ldev)->fragment_tag++;
+ frag_tag = htons(lowpan_802154_dev(ldev)->fragment_tag);
+ lowpan_802154_dev(ldev)->fragment_tag++;
frag_hdr[0] = LOWPAN_DISPATCH_FRAG1 | ((dgram_size >> 8) & 0x07);
frag_hdr[1] = dgram_size & 0xff;
static int lowpan_header(struct sk_buff *skb, struct net_device *ldev,
u16 *dgram_size, u16 *dgram_offset)
{
- struct wpan_dev *wpan_dev = lowpan_dev_info(ldev)->wdev->ieee802154_ptr;
+ struct wpan_dev *wpan_dev = lowpan_802154_dev(ldev)->wdev->ieee802154_ptr;
struct ieee802154_addr sa, da;
struct ieee802154_mac_cb *cb = mac_cb_init(skb);
struct lowpan_addr_info info;
cb->ackreq = wpan_dev->ackreq;
}
- return wpan_dev_hard_header(skb, lowpan_dev_info(ldev)->wdev, &da, &sa,
- 0);
+ return wpan_dev_hard_header(skb, lowpan_802154_dev(ldev)->wdev, &da,
+ &sa, 0);
}
netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *ldev)
max_single = ieee802154_max_payload(&wpan_hdr);
if (skb_tail_pointer(skb) - skb_network_header(skb) <= max_single) {
- skb->dev = lowpan_dev_info(ldev)->wdev;
+ skb->dev = lowpan_802154_dev(ldev)->wdev;
ldev->stats.tx_packets++;
ldev->stats.tx_bytes += dgram_size;
return dev_queue_xmit(skb);