#include "mac802154.h"
-static inline int mac802154_fetch_skb_u8(struct sk_buff *skb, u8 *val)
+static int mac802154_wpan_update_llsec(struct net_device *dev)
{
- if (unlikely(!pskb_may_pull(skb, 1)))
- return -EINVAL;
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
+ int rc = 0;
- *val = skb->data[0];
- skb_pull(skb, 1);
+ if (ops->llsec) {
+ struct ieee802154_llsec_params params;
+ int changed = 0;
- return 0;
-}
+ params.pan_id = priv->pan_id;
+ changed |= IEEE802154_LLSEC_PARAM_PAN_ID;
-static inline int mac802154_fetch_skb_u16(struct sk_buff *skb, u16 *val)
-{
- if (unlikely(!pskb_may_pull(skb, 2)))
- return -EINVAL;
-
- *val = skb->data[0] | (skb->data[1] << 8);
- skb_pull(skb, 2);
+ params.hwaddr = priv->extended_addr;
+ changed |= IEEE802154_LLSEC_PARAM_HWADDR;
- return 0;
-}
+ rc = ops->llsec->set_params(dev, ¶ms, changed);
+ }
-static inline void mac802154_haddr_copy_swap(u8 *dest, const u8 *src)
-{
- int i;
- for (i = 0; i < IEEE802154_ADDR_LEN; i++)
- dest[IEEE802154_ADDR_LEN - i - 1] = src[i];
+ return rc;
}
static int
switch (cmd) {
case SIOCGIFADDR:
- if (priv->pan_id == IEEE802154_PANID_BROADCAST ||
- priv->short_addr == IEEE802154_ADDR_BROADCAST) {
+ {
+ u16 pan_id, short_addr;
+
+ pan_id = le16_to_cpu(priv->pan_id);
+ short_addr = le16_to_cpu(priv->short_addr);
+ if (pan_id == IEEE802154_PANID_BROADCAST ||
+ short_addr == IEEE802154_ADDR_BROADCAST) {
err = -EADDRNOTAVAIL;
break;
}
sa->family = AF_IEEE802154;
sa->addr.addr_type = IEEE802154_ADDR_SHORT;
- sa->addr.pan_id = priv->pan_id;
- sa->addr.short_addr = priv->short_addr;
+ sa->addr.pan_id = pan_id;
+ sa->addr.short_addr = short_addr;
err = 0;
break;
+ }
case SIOCSIFADDR:
dev_warn(&dev->dev,
"Using DEBUGing ioctl SIOCSIFADDR isn't recommened!\n");
break;
}
- priv->pan_id = sa->addr.pan_id;
- priv->short_addr = sa->addr.short_addr;
+ priv->pan_id = cpu_to_le16(sa->addr.pan_id);
+ priv->short_addr = cpu_to_le16(sa->addr.short_addr);
- err = 0;
+ err = mac802154_wpan_update_llsec(dev);
break;
}
/* FIXME: validate addr */
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
mac802154_dev_set_ieee_addr(dev);
- return 0;
+ return mac802154_wpan_update_llsec(dev);
}
-static int mac802154_header_create(struct sk_buff *skb,
- struct net_device *dev,
- unsigned short type,
- const void *_daddr,
- const void *_saddr,
- unsigned len)
+int mac802154_set_mac_params(struct net_device *dev,
+ const struct ieee802154_mac_params *params)
{
- const struct ieee802154_addr *saddr = _saddr;
- const struct ieee802154_addr *daddr = _daddr;
- struct ieee802154_addr dev_addr;
struct mac802154_sub_if_data *priv = netdev_priv(dev);
- int pos = 2;
- u8 head[MAC802154_FRAME_HARD_HEADER_LEN];
- u16 fc;
- if (!daddr)
- return -EINVAL;
+ mutex_lock(&priv->hw->slaves_mtx);
+ priv->mac_params = *params;
+ mutex_unlock(&priv->hw->slaves_mtx);
- head[pos++] = mac_cb(skb)->seq; /* DSN/BSN */
- fc = mac_cb_type(skb);
- if (mac_cb_is_ackreq(skb))
- fc |= IEEE802154_FC_ACK_REQ;
+ return 0;
+}
- if (!saddr) {
- spin_lock_bh(&priv->mib_lock);
+void mac802154_get_mac_params(struct net_device *dev,
+ struct ieee802154_mac_params *params)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
- if (priv->short_addr == IEEE802154_ADDR_BROADCAST ||
- priv->short_addr == IEEE802154_ADDR_UNDEF ||
- priv->pan_id == IEEE802154_PANID_BROADCAST) {
- dev_addr.addr_type = IEEE802154_ADDR_LONG;
- memcpy(dev_addr.hwaddr, dev->dev_addr,
- IEEE802154_ADDR_LEN);
- } else {
- dev_addr.addr_type = IEEE802154_ADDR_SHORT;
- dev_addr.short_addr = priv->short_addr;
- }
+ mutex_lock(&priv->hw->slaves_mtx);
+ *params = priv->mac_params;
+ mutex_unlock(&priv->hw->slaves_mtx);
+}
- dev_addr.pan_id = priv->pan_id;
- saddr = &dev_addr;
+static int mac802154_wpan_open(struct net_device *dev)
+{
+ int rc;
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ struct wpan_phy *phy = priv->hw->phy;
- spin_unlock_bh(&priv->mib_lock);
- }
+ rc = mac802154_slave_open(dev);
+ if (rc < 0)
+ return rc;
- if (daddr->addr_type != IEEE802154_ADDR_NONE) {
- fc |= (daddr->addr_type << IEEE802154_FC_DAMODE_SHIFT);
+ mutex_lock(&phy->pib_lock);
- head[pos++] = daddr->pan_id & 0xff;
- head[pos++] = daddr->pan_id >> 8;
+ if (phy->set_txpower) {
+ rc = phy->set_txpower(phy, priv->mac_params.transmit_power);
+ if (rc < 0)
+ goto out;
+ }
- if (daddr->addr_type == IEEE802154_ADDR_SHORT) {
- head[pos++] = daddr->short_addr & 0xff;
- head[pos++] = daddr->short_addr >> 8;
- } else {
- mac802154_haddr_copy_swap(head + pos, daddr->hwaddr);
- pos += IEEE802154_ADDR_LEN;
- }
+ if (phy->set_lbt) {
+ rc = phy->set_lbt(phy, priv->mac_params.lbt);
+ if (rc < 0)
+ goto out;
}
- if (saddr->addr_type != IEEE802154_ADDR_NONE) {
- fc |= (saddr->addr_type << IEEE802154_FC_SAMODE_SHIFT);
+ if (phy->set_cca_mode) {
+ rc = phy->set_cca_mode(phy, priv->mac_params.cca_mode);
+ if (rc < 0)
+ goto out;
+ }
- if ((saddr->pan_id == daddr->pan_id) &&
- (saddr->pan_id != IEEE802154_PANID_BROADCAST)) {
- /* PANID compression/intra PAN */
- fc |= IEEE802154_FC_INTRA_PAN;
- } else {
- head[pos++] = saddr->pan_id & 0xff;
- head[pos++] = saddr->pan_id >> 8;
- }
+ if (phy->set_cca_ed_level) {
+ rc = phy->set_cca_ed_level(phy, priv->mac_params.cca_ed_level);
+ if (rc < 0)
+ goto out;
+ }
- if (saddr->addr_type == IEEE802154_ADDR_SHORT) {
- head[pos++] = saddr->short_addr & 0xff;
- head[pos++] = saddr->short_addr >> 8;
- } else {
- mac802154_haddr_copy_swap(head + pos, saddr->hwaddr);
- pos += IEEE802154_ADDR_LEN;
- }
+ if (phy->set_csma_params) {
+ rc = phy->set_csma_params(phy, priv->mac_params.min_be,
+ priv->mac_params.max_be,
+ priv->mac_params.csma_retries);
+ if (rc < 0)
+ goto out;
}
- head[0] = fc;
- head[1] = fc >> 8;
+ if (phy->set_frame_retries) {
+ rc = phy->set_frame_retries(phy,
+ priv->mac_params.frame_retries);
+ if (rc < 0)
+ goto out;
+ }
- memcpy(skb_push(skb, pos), head, pos);
- skb_reset_mac_header(skb);
- skb->mac_len = pos;
+ mutex_unlock(&phy->pib_lock);
+ return 0;
- return pos;
+out:
+ mutex_unlock(&phy->pib_lock);
+ return rc;
}
-static int
-mac802154_header_parse(const struct sk_buff *skb, unsigned char *haddr)
+static int mac802154_set_header_security(struct mac802154_sub_if_data *priv,
+ struct ieee802154_hdr *hdr,
+ const struct ieee802154_mac_cb *cb)
{
- const u8 *hdr = skb_mac_header(skb);
- const u8 *tail = skb_tail_pointer(skb);
- struct ieee802154_addr *addr = (struct ieee802154_addr *)haddr;
- u16 fc;
- int da_type;
+ struct ieee802154_llsec_params params;
+ u8 level;
- if (hdr + 3 > tail)
- goto malformed;
+ mac802154_llsec_get_params(&priv->sec, ¶ms);
- fc = hdr[0] | (hdr[1] << 8);
+ if (!params.enabled && cb->secen_override && cb->secen)
+ return -EINVAL;
+ if (!params.enabled ||
+ (cb->secen_override && !cb->secen) ||
+ !params.out_level)
+ return 0;
+ if (cb->seclevel_override && !cb->seclevel)
+ return -EINVAL;
- hdr += 3;
+ level = cb->seclevel_override ? cb->seclevel : params.out_level;
- da_type = IEEE802154_FC_DAMODE(fc);
- addr->addr_type = IEEE802154_FC_SAMODE(fc);
+ hdr->fc.security_enabled = 1;
+ hdr->sec.level = level;
+ hdr->sec.key_id_mode = params.out_key.mode;
+ if (params.out_key.mode == IEEE802154_SCF_KEY_SHORT_INDEX)
+ hdr->sec.short_src = params.out_key.short_source;
+ else if (params.out_key.mode == IEEE802154_SCF_KEY_HW_INDEX)
+ hdr->sec.extended_src = params.out_key.extended_source;
+ hdr->sec.key_id = params.out_key.id;
- switch (da_type) {
- case IEEE802154_ADDR_NONE:
- if (fc & IEEE802154_FC_INTRA_PAN)
- goto malformed;
- break;
- case IEEE802154_ADDR_LONG:
- if (fc & IEEE802154_FC_INTRA_PAN) {
- if (hdr + 2 > tail)
- goto malformed;
- addr->pan_id = hdr[0] | (hdr[1] << 8);
- hdr += 2;
- }
+ return 0;
+}
- if (hdr + IEEE802154_ADDR_LEN > tail)
- goto malformed;
+static int mac802154_header_create(struct sk_buff *skb,
+ struct net_device *dev,
+ unsigned short type,
+ const void *daddr,
+ const void *saddr,
+ unsigned len)
+{
+ struct ieee802154_hdr hdr;
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ struct ieee802154_mac_cb *cb = mac_cb(skb);
+ int hlen;
- hdr += IEEE802154_ADDR_LEN;
- break;
- case IEEE802154_ADDR_SHORT:
- if (fc & IEEE802154_FC_INTRA_PAN) {
- if (hdr + 2 > tail)
- goto malformed;
- addr->pan_id = hdr[0] | (hdr[1] << 8);
- hdr += 2;
- }
+ if (!daddr)
+ return -EINVAL;
- if (hdr + 2 > tail)
- goto malformed;
+ memset(&hdr.fc, 0, sizeof(hdr.fc));
+ hdr.fc.type = cb->type;
+ hdr.fc.security_enabled = cb->secen;
+ hdr.fc.ack_request = cb->ackreq;
+ hdr.seq = ieee802154_mlme_ops(dev)->get_dsn(dev);
- hdr += 2;
- break;
- default:
- goto malformed;
+ if (mac802154_set_header_security(priv, &hdr, cb) < 0)
+ return -EINVAL;
- }
+ if (!saddr) {
+ spin_lock_bh(&priv->mib_lock);
- switch (addr->addr_type) {
- case IEEE802154_ADDR_NONE:
- break;
- case IEEE802154_ADDR_LONG:
- if (!(fc & IEEE802154_FC_INTRA_PAN)) {
- if (hdr + 2 > tail)
- goto malformed;
- addr->pan_id = hdr[0] | (hdr[1] << 8);
- hdr += 2;
+ if (priv->short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST) ||
+ priv->short_addr == cpu_to_le16(IEEE802154_ADDR_UNDEF) ||
+ priv->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST)) {
+ hdr.source.mode = IEEE802154_ADDR_LONG;
+ hdr.source.extended_addr = priv->extended_addr;
+ } else {
+ hdr.source.mode = IEEE802154_ADDR_SHORT;
+ hdr.source.short_addr = priv->short_addr;
}
- if (hdr + IEEE802154_ADDR_LEN > tail)
- goto malformed;
+ hdr.source.pan_id = priv->pan_id;
- mac802154_haddr_copy_swap(addr->hwaddr, hdr);
- hdr += IEEE802154_ADDR_LEN;
- break;
- case IEEE802154_ADDR_SHORT:
- if (!(fc & IEEE802154_FC_INTRA_PAN)) {
- if (hdr + 2 > tail)
- goto malformed;
- addr->pan_id = hdr[0] | (hdr[1] << 8);
- hdr += 2;
- }
+ spin_unlock_bh(&priv->mib_lock);
+ } else {
+ hdr.source = *(const struct ieee802154_addr *)saddr;
+ }
- if (hdr + 2 > tail)
- goto malformed;
+ hdr.dest = *(const struct ieee802154_addr *)daddr;
- addr->short_addr = hdr[0] | (hdr[1] << 8);
- hdr += 2;
- break;
- default:
- goto malformed;
- }
+ hlen = ieee802154_hdr_push(skb, &hdr);
+ if (hlen < 0)
+ return -EINVAL;
- return sizeof(struct ieee802154_addr);
+ skb_reset_mac_header(skb);
+ skb->mac_len = hlen;
-malformed:
- pr_debug("malformed packet\n");
- return 0;
+ if (len > ieee802154_max_payload(&hdr))
+ return -EMSGSIZE;
+
+ return hlen;
+}
+
+static int
+mac802154_header_parse(const struct sk_buff *skb, unsigned char *haddr)
+{
+ struct ieee802154_hdr hdr;
+ struct ieee802154_addr *addr = (struct ieee802154_addr *)haddr;
+
+ if (ieee802154_hdr_peek_addrs(skb, &hdr) < 0) {
+ pr_debug("malformed packet\n");
+ return 0;
+ }
+
+ *addr = hdr.source;
+ return sizeof(*addr);
}
static netdev_tx_t
{
struct mac802154_sub_if_data *priv;
u8 chan, page;
+ int rc;
priv = netdev_priv(dev);
return NETDEV_TX_OK;
}
+ rc = mac802154_llsec_encrypt(&priv->sec, skb);
+ if (rc) {
+ pr_warn("encryption failed: %i\n", rc);
+ kfree_skb(skb);
+ return NETDEV_TX_OK;
+ }
+
skb->skb_iif = dev->ifindex;
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
};
static const struct net_device_ops mac802154_wpan_ops = {
- .ndo_open = mac802154_slave_open,
+ .ndo_open = mac802154_wpan_open,
.ndo_stop = mac802154_slave_close,
.ndo_start_xmit = mac802154_wpan_xmit,
.ndo_do_ioctl = mac802154_wpan_ioctl,
.ndo_set_mac_address = mac802154_wpan_mac_addr,
};
+static void mac802154_wpan_free(struct net_device *dev)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+
+ mac802154_llsec_destroy(&priv->sec);
+
+ free_netdev(dev);
+}
+
void mac802154_wpan_setup(struct net_device *dev)
{
struct mac802154_sub_if_data *priv;
dev->hard_header_len = MAC802154_FRAME_HARD_HEADER_LEN;
dev->header_ops = &mac802154_header_ops;
- dev->needed_tailroom = 2; /* FCS */
+ dev->needed_tailroom = 2 + 16; /* FCS + MIC */
dev->mtu = IEEE802154_MTU;
dev->tx_queue_len = 300;
dev->type = ARPHRD_IEEE802154;
dev->flags = IFF_NOARP | IFF_BROADCAST;
dev->watchdog_timeo = 0;
- dev->destructor = free_netdev;
+ dev->destructor = mac802154_wpan_free;
dev->netdev_ops = &mac802154_wpan_ops;
dev->ml_priv = &mac802154_mlme_wpan;
priv->page = 0;
spin_lock_init(&priv->mib_lock);
+ mutex_init(&priv->sec_mtx);
get_random_bytes(&priv->bsn, 1);
get_random_bytes(&priv->dsn, 1);
- priv->pan_id = IEEE802154_PANID_BROADCAST;
- priv->short_addr = IEEE802154_ADDR_BROADCAST;
+ /* defaults per 802.15.4-2011 */
+ priv->mac_params.min_be = 3;
+ priv->mac_params.max_be = 5;
+ priv->mac_params.csma_retries = 4;
+ priv->mac_params.frame_retries = -1; /* for compatibility, actual default is 3 */
+
+ priv->pan_id = cpu_to_le16(IEEE802154_PANID_BROADCAST);
+ priv->short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST);
+
+ mac802154_llsec_init(&priv->sec);
}
static int mac802154_process_data(struct net_device *dev, struct sk_buff *skb)
}
static int
-mac802154_subif_frame(struct mac802154_sub_if_data *sdata, struct sk_buff *skb)
+mac802154_subif_frame(struct mac802154_sub_if_data *sdata, struct sk_buff *skb,
+ const struct ieee802154_hdr *hdr)
{
+ __le16 span, sshort;
+ int rc;
+
pr_debug("getting packet via slave interface %s\n", sdata->dev->name);
spin_lock_bh(&sdata->mib_lock);
- switch (mac_cb(skb)->da.addr_type) {
+ span = sdata->pan_id;
+ sshort = sdata->short_addr;
+
+ switch (mac_cb(skb)->dest.mode) {
case IEEE802154_ADDR_NONE:
- if (mac_cb(skb)->sa.addr_type != IEEE802154_ADDR_NONE)
+ if (mac_cb(skb)->dest.mode != IEEE802154_ADDR_NONE)
/* FIXME: check if we are PAN coordinator */
skb->pkt_type = PACKET_OTHERHOST;
else
skb->pkt_type = PACKET_HOST;
break;
case IEEE802154_ADDR_LONG:
- if (mac_cb(skb)->da.pan_id != sdata->pan_id &&
- mac_cb(skb)->da.pan_id != IEEE802154_PANID_BROADCAST)
+ if (mac_cb(skb)->dest.pan_id != span &&
+ mac_cb(skb)->dest.pan_id != cpu_to_le16(IEEE802154_PANID_BROADCAST))
skb->pkt_type = PACKET_OTHERHOST;
- else if (!memcmp(mac_cb(skb)->da.hwaddr, sdata->dev->dev_addr,
- IEEE802154_ADDR_LEN))
+ else if (mac_cb(skb)->dest.extended_addr == sdata->extended_addr)
skb->pkt_type = PACKET_HOST;
else
skb->pkt_type = PACKET_OTHERHOST;
break;
case IEEE802154_ADDR_SHORT:
- if (mac_cb(skb)->da.pan_id != sdata->pan_id &&
- mac_cb(skb)->da.pan_id != IEEE802154_PANID_BROADCAST)
+ if (mac_cb(skb)->dest.pan_id != span &&
+ mac_cb(skb)->dest.pan_id != cpu_to_le16(IEEE802154_PANID_BROADCAST))
skb->pkt_type = PACKET_OTHERHOST;
- else if (mac_cb(skb)->da.short_addr == sdata->short_addr)
+ else if (mac_cb(skb)->dest.short_addr == sshort)
skb->pkt_type = PACKET_HOST;
- else if (mac_cb(skb)->da.short_addr ==
- IEEE802154_ADDR_BROADCAST)
+ else if (mac_cb(skb)->dest.short_addr ==
+ cpu_to_le16(IEEE802154_ADDR_BROADCAST))
skb->pkt_type = PACKET_BROADCAST;
else
skb->pkt_type = PACKET_OTHERHOST;
skb->dev = sdata->dev;
+ rc = mac802154_llsec_decrypt(&sdata->sec, skb);
+ if (rc) {
+ pr_debug("decryption failed: %i\n", rc);
+ kfree_skb(skb);
+ return NET_RX_DROP;
+ }
+
sdata->dev->stats.rx_packets++;
sdata->dev->stats.rx_bytes += skb->len;
- switch (mac_cb_type(skb)) {
+ switch (mac_cb(skb)->type) {
case IEEE802154_FC_TYPE_DATA:
return mac802154_process_data(sdata->dev, skb);
default:
pr_warn("ieee802154: bad frame received (type = %d)\n",
- mac_cb_type(skb));
+ mac_cb(skb)->type);
kfree_skb(skb);
return NET_RX_DROP;
}
}
-static int mac802154_parse_frame_start(struct sk_buff *skb)
+static void mac802154_print_addr(const char *name,
+ const struct ieee802154_addr *addr)
{
- u8 *head = skb->data;
- u16 fc;
-
- if (mac802154_fetch_skb_u16(skb, &fc) ||
- mac802154_fetch_skb_u8(skb, &(mac_cb(skb)->seq)))
- goto err;
-
- pr_debug("fc: %04x dsn: %02x\n", fc, head[2]);
-
- mac_cb(skb)->flags = IEEE802154_FC_TYPE(fc);
- mac_cb(skb)->sa.addr_type = IEEE802154_FC_SAMODE(fc);
- mac_cb(skb)->da.addr_type = IEEE802154_FC_DAMODE(fc);
-
- if (fc & IEEE802154_FC_INTRA_PAN)
- mac_cb(skb)->flags |= MAC_CB_FLAG_INTRAPAN;
+ if (addr->mode == IEEE802154_ADDR_NONE)
+ pr_debug("%s not present\n", name);
- if (mac_cb(skb)->da.addr_type != IEEE802154_ADDR_NONE) {
- if (mac802154_fetch_skb_u16(skb, &(mac_cb(skb)->da.pan_id)))
- goto err;
+ pr_debug("%s PAN ID: %04x\n", name, le16_to_cpu(addr->pan_id));
+ if (addr->mode == IEEE802154_ADDR_SHORT) {
+ pr_debug("%s is short: %04x\n", name,
+ le16_to_cpu(addr->short_addr));
+ } else {
+ u64 hw = swab64((__force u64) addr->extended_addr);
- /* source PAN id compression */
- if (mac_cb_is_intrapan(skb))
- mac_cb(skb)->sa.pan_id = mac_cb(skb)->da.pan_id;
+ pr_debug("%s is hardware: %8phC\n", name, &hw);
+ }
+}
- pr_debug("dest PAN addr: %04x\n", mac_cb(skb)->da.pan_id);
+static int mac802154_parse_frame_start(struct sk_buff *skb,
+ struct ieee802154_hdr *hdr)
+{
+ int hlen;
+ struct ieee802154_mac_cb *cb = mac_cb_init(skb);
- if (mac_cb(skb)->da.addr_type == IEEE802154_ADDR_SHORT) {
- u16 *da = &(mac_cb(skb)->da.short_addr);
+ hlen = ieee802154_hdr_pull(skb, hdr);
+ if (hlen < 0)
+ return -EINVAL;
- if (mac802154_fetch_skb_u16(skb, da))
- goto err;
+ skb->mac_len = hlen;
- pr_debug("destination address is short: %04x\n",
- mac_cb(skb)->da.short_addr);
- } else {
- if (!pskb_may_pull(skb, IEEE802154_ADDR_LEN))
- goto err;
+ pr_debug("fc: %04x dsn: %02x\n", le16_to_cpup((__le16 *)&hdr->fc),
+ hdr->seq);
- mac802154_haddr_copy_swap(mac_cb(skb)->da.hwaddr,
- skb->data);
- skb_pull(skb, IEEE802154_ADDR_LEN);
+ cb->type = hdr->fc.type;
+ cb->ackreq = hdr->fc.ack_request;
+ cb->secen = hdr->fc.security_enabled;
- pr_debug("destination address is hardware\n");
- }
- }
+ mac802154_print_addr("destination", &hdr->dest);
+ mac802154_print_addr("source", &hdr->source);
- if (mac_cb(skb)->sa.addr_type != IEEE802154_ADDR_NONE) {
- /* non PAN-compression, fetch source address id */
- if (!(mac_cb_is_intrapan(skb))) {
- u16 *sa_pan = &(mac_cb(skb)->sa.pan_id);
-
- if (mac802154_fetch_skb_u16(skb, sa_pan))
- goto err;
- }
+ cb->source = hdr->source;
+ cb->dest = hdr->dest;
- pr_debug("source PAN addr: %04x\n", mac_cb(skb)->da.pan_id);
+ if (hdr->fc.security_enabled) {
+ u64 key;
- if (mac_cb(skb)->sa.addr_type == IEEE802154_ADDR_SHORT) {
- u16 *sa = &(mac_cb(skb)->sa.short_addr);
+ pr_debug("seclevel %i\n", hdr->sec.level);
- if (mac802154_fetch_skb_u16(skb, sa))
- goto err;
+ switch (hdr->sec.key_id_mode) {
+ case IEEE802154_SCF_KEY_IMPLICIT:
+ pr_debug("implicit key\n");
+ break;
- pr_debug("source address is short: %04x\n",
- mac_cb(skb)->sa.short_addr);
- } else {
- if (!pskb_may_pull(skb, IEEE802154_ADDR_LEN))
- goto err;
+ case IEEE802154_SCF_KEY_INDEX:
+ pr_debug("key %02x\n", hdr->sec.key_id);
+ break;
- mac802154_haddr_copy_swap(mac_cb(skb)->sa.hwaddr,
- skb->data);
- skb_pull(skb, IEEE802154_ADDR_LEN);
+ case IEEE802154_SCF_KEY_SHORT_INDEX:
+ pr_debug("key %04x:%04x %02x\n",
+ le32_to_cpu(hdr->sec.short_src) >> 16,
+ le32_to_cpu(hdr->sec.short_src) & 0xffff,
+ hdr->sec.key_id);
+ break;
- pr_debug("source address is hardware\n");
+ case IEEE802154_SCF_KEY_HW_INDEX:
+ key = swab64((__force u64) hdr->sec.extended_src);
+ pr_debug("key source %8phC %02x\n", &key,
+ hdr->sec.key_id);
+ break;
}
}
return 0;
-err:
- return -EINVAL;
}
void mac802154_wpans_rx(struct mac802154_priv *priv, struct sk_buff *skb)
{
int ret;
- struct sk_buff *sskb;
struct mac802154_sub_if_data *sdata;
+ struct ieee802154_hdr hdr;
- ret = mac802154_parse_frame_start(skb);
+ ret = mac802154_parse_frame_start(skb, &hdr);
if (ret) {
pr_debug("got invalid frame\n");
return;
rcu_read_lock();
list_for_each_entry_rcu(sdata, &priv->slaves, list) {
- if (sdata->type != IEEE802154_DEV_WPAN)
+ if (sdata->type != IEEE802154_DEV_WPAN ||
+ !netif_running(sdata->dev))
continue;
- sskb = skb_clone(skb, GFP_ATOMIC);
- if (sskb)
- mac802154_subif_frame(sdata, sskb);
+ mac802154_subif_frame(sdata, skb, &hdr);
+ skb = NULL;
+ break;
}
rcu_read_unlock();
+
+ if (skb)
+ kfree_skb(skb);
}
projects / firefly-linux-kernel-4.4.55.git / blobdiff