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-rw-r--r--net/ieee802154/6lowpan/6lowpan_i.h72
-rw-r--r--net/ieee802154/6lowpan/Kconfig5
-rw-r--r--net/ieee802154/6lowpan/Makefile3
-rw-r--r--net/ieee802154/6lowpan/core.c304
-rw-r--r--net/ieee802154/6lowpan/reassembly.c (renamed from net/ieee802154/reassembly.c)2
-rw-r--r--net/ieee802154/6lowpan/rx.c171
-rw-r--r--net/ieee802154/6lowpan/tx.c271
-rw-r--r--net/ieee802154/6lowpan_rtnl.c729
-rw-r--r--net/ieee802154/Kconfig18
-rw-r--r--net/ieee802154/Makefile8
-rw-r--r--net/ieee802154/af802154.h33
-rw-r--r--net/ieee802154/af_ieee802154.c369
-rw-r--r--net/ieee802154/dgram.c549
-rw-r--r--net/ieee802154/netlink.c12
-rw-r--r--net/ieee802154/nl-mac.c7
-rw-r--r--net/ieee802154/nl-phy.c3
-rw-r--r--net/ieee802154/nl802154.c52
-rw-r--r--net/ieee802154/raw.c270
-rw-r--r--net/ieee802154/rdev-ops.h7
-rw-r--r--net/ieee802154/reassembly.h41
-rw-r--r--net/ieee802154/socket.c1125
-rw-r--r--net/ieee802154/sysfs.c2
22 files changed, 2032 insertions, 2021 deletions
diff --git a/net/ieee802154/6lowpan/6lowpan_i.h b/net/ieee802154/6lowpan/6lowpan_i.h
new file mode 100644
index 000000000000..e50f69da78eb
--- /dev/null
+++ b/net/ieee802154/6lowpan/6lowpan_i.h
@@ -0,0 +1,72 @@
+#ifndef __IEEE802154_6LOWPAN_I_H__
+#define __IEEE802154_6LOWPAN_I_H__
+
+#include <linux/list.h>
+
+#include <net/ieee802154_netdev.h>
+#include <net/inet_frag.h>
+
+struct lowpan_create_arg {
+ u16 tag;
+ u16 d_size;
+ const struct ieee802154_addr *src;
+ const struct ieee802154_addr *dst;
+};
+
+/* Equivalent of ipv4 struct ip
+ */
+struct lowpan_frag_queue {
+ struct inet_frag_queue q;
+
+ u16 tag;
+ u16 d_size;
+ struct ieee802154_addr saddr;
+ struct ieee802154_addr daddr;
+};
+
+static inline u32 ieee802154_addr_hash(const struct ieee802154_addr *a)
+{
+ switch (a->mode) {
+ case IEEE802154_ADDR_LONG:
+ return (((__force u64)a->extended_addr) >> 32) ^
+ (((__force u64)a->extended_addr) & 0xffffffff);
+ case IEEE802154_ADDR_SHORT:
+ return (__force u32)(a->short_addr);
+ default:
+ return 0;
+ }
+}
+
+struct lowpan_dev_record {
+ struct net_device *ldev;
+ struct list_head list;
+};
+
+/* private device info */
+struct lowpan_dev_info {
+ struct net_device *real_dev; /* real WPAN device ptr */
+ struct mutex dev_list_mtx; /* mutex for list ops */
+ u16 fragment_tag;
+};
+
+static inline struct
+lowpan_dev_info *lowpan_dev_info(const struct net_device *dev)
+{
+ return netdev_priv(dev);
+}
+
+extern struct list_head lowpan_devices;
+
+int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type);
+void lowpan_net_frag_exit(void);
+int lowpan_net_frag_init(void);
+
+void lowpan_rx_init(void);
+void lowpan_rx_exit(void);
+
+int lowpan_header_create(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, const void *_daddr,
+ const void *_saddr, unsigned int len);
+netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *dev);
+
+#endif /* __IEEE802154_6LOWPAN_I_H__ */
diff --git a/net/ieee802154/6lowpan/Kconfig b/net/ieee802154/6lowpan/Kconfig
new file mode 100644
index 000000000000..d24f985b0bfd
--- /dev/null
+++ b/net/ieee802154/6lowpan/Kconfig
@@ -0,0 +1,5 @@
+config IEEE802154_6LOWPAN
+ tristate "6lowpan support over IEEE 802.15.4"
+ depends on 6LOWPAN
+ ---help---
+ IPv6 compression over IEEE 802.15.4.
diff --git a/net/ieee802154/6lowpan/Makefile b/net/ieee802154/6lowpan/Makefile
new file mode 100644
index 000000000000..6bfb270a81a6
--- /dev/null
+++ b/net/ieee802154/6lowpan/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_IEEE802154_6LOWPAN) += ieee802154_6lowpan.o
+
+ieee802154_6lowpan-y := core.o rx.o reassembly.o tx.o
diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c
new file mode 100644
index 000000000000..055fbb71ba6f
--- /dev/null
+++ b/net/ieee802154/6lowpan/core.c
@@ -0,0 +1,304 @@
+/* Copyright 2011, Siemens AG
+ * written by Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
+ */
+
+/* Based on patches from Jon Smirl <jonsmirl@gmail.com>
+ * Copyright (c) 2011 Jon Smirl <jonsmirl@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+/* Jon's code is based on 6lowpan implementation for Contiki which is:
+ * Copyright (c) 2008, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/ieee802154.h>
+
+#include <net/ipv6.h>
+
+#include "6lowpan_i.h"
+
+LIST_HEAD(lowpan_devices);
+static int lowpan_open_count;
+
+static __le16 lowpan_get_pan_id(const struct net_device *dev)
+{
+ struct net_device *real_dev = lowpan_dev_info(dev)->real_dev;
+
+ return ieee802154_mlme_ops(real_dev)->get_pan_id(real_dev);
+}
+
+static __le16 lowpan_get_short_addr(const struct net_device *dev)
+{
+ struct net_device *real_dev = lowpan_dev_info(dev)->real_dev;
+
+ return ieee802154_mlme_ops(real_dev)->get_short_addr(real_dev);
+}
+
+static u8 lowpan_get_dsn(const struct net_device *dev)
+{
+ struct net_device *real_dev = lowpan_dev_info(dev)->real_dev;
+
+ return ieee802154_mlme_ops(real_dev)->get_dsn(real_dev);
+}
+
+static struct header_ops lowpan_header_ops = {
+ .create = lowpan_header_create,
+};
+
+static struct lock_class_key lowpan_tx_busylock;
+static struct lock_class_key lowpan_netdev_xmit_lock_key;
+
+static void lowpan_set_lockdep_class_one(struct net_device *dev,
+ struct netdev_queue *txq,
+ void *_unused)
+{
+ lockdep_set_class(&txq->_xmit_lock,
+ &lowpan_netdev_xmit_lock_key);
+}
+
+static int lowpan_dev_init(struct net_device *dev)
+{
+ netdev_for_each_tx_queue(dev, lowpan_set_lockdep_class_one, NULL);
+ dev->qdisc_tx_busylock = &lowpan_tx_busylock;
+ return 0;
+}
+
+static const struct net_device_ops lowpan_netdev_ops = {
+ .ndo_init = lowpan_dev_init,
+ .ndo_start_xmit = lowpan_xmit,
+};
+
+static struct ieee802154_mlme_ops lowpan_mlme = {
+ .get_pan_id = lowpan_get_pan_id,
+ .get_short_addr = lowpan_get_short_addr,
+ .get_dsn = lowpan_get_dsn,
+};
+
+static void lowpan_setup(struct net_device *dev)
+{
+ dev->addr_len = IEEE802154_ADDR_LEN;
+ memset(dev->broadcast, 0xff, IEEE802154_ADDR_LEN);
+ dev->type = ARPHRD_IEEE802154;
+ /* Frame Control + Sequence Number + Address fields + Security Header */
+ dev->hard_header_len = 2 + 1 + 20 + 14;
+ dev->needed_tailroom = 2; /* FCS */
+ dev->mtu = IPV6_MIN_MTU;
+ dev->tx_queue_len = 0;
+ dev->flags = IFF_BROADCAST | IFF_MULTICAST;
+ dev->watchdog_timeo = 0;
+
+ dev->netdev_ops = &lowpan_netdev_ops;
+ dev->header_ops = &lowpan_header_ops;
+ dev->ml_priv = &lowpan_mlme;
+ dev->destructor = free_netdev;
+}
+
+static int lowpan_validate(struct nlattr *tb[], struct nlattr *data[])
+{
+ if (tb[IFLA_ADDRESS]) {
+ if (nla_len(tb[IFLA_ADDRESS]) != IEEE802154_ADDR_LEN)
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int lowpan_newlink(struct net *src_net, struct net_device *dev,
+ struct nlattr *tb[], struct nlattr *data[])
+{
+ struct net_device *real_dev;
+ struct lowpan_dev_record *entry;
+ int ret;
+
+ ASSERT_RTNL();
+
+ pr_debug("adding new link\n");
+
+ if (!tb[IFLA_LINK])
+ return -EINVAL;
+ /* find and hold real wpan device */
+ real_dev = dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK]));
+ if (!real_dev)
+ return -ENODEV;
+ if (real_dev->type != ARPHRD_IEEE802154) {
+ dev_put(real_dev);
+ return -EINVAL;
+ }
+
+ lowpan_dev_info(dev)->real_dev = real_dev;
+ mutex_init(&lowpan_dev_info(dev)->dev_list_mtx);
+
+ entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry) {
+ dev_put(real_dev);
+ lowpan_dev_info(dev)->real_dev = NULL;
+ return -ENOMEM;
+ }
+
+ entry->ldev = dev;
+
+ /* Set the lowpan hardware address to the wpan hardware address. */
+ memcpy(dev->dev_addr, real_dev->dev_addr, IEEE802154_ADDR_LEN);
+
+ mutex_lock(&lowpan_dev_info(dev)->dev_list_mtx);
+ INIT_LIST_HEAD(&entry->list);
+ list_add_tail(&entry->list, &lowpan_devices);
+ mutex_unlock(&lowpan_dev_info(dev)->dev_list_mtx);
+
+ ret = register_netdevice(dev);
+ if (ret >= 0) {
+ if (!lowpan_open_count)
+ lowpan_rx_init();
+ lowpan_open_count++;
+ }
+
+ return ret;
+}
+
+static void lowpan_dellink(struct net_device *dev, struct list_head *head)
+{
+ struct lowpan_dev_info *lowpan_dev = lowpan_dev_info(dev);
+ struct net_device *real_dev = lowpan_dev->real_dev;
+ struct lowpan_dev_record *entry, *tmp;
+
+ ASSERT_RTNL();
+
+ lowpan_open_count--;
+ if (!lowpan_open_count)
+ lowpan_rx_exit();
+
+ mutex_lock(&lowpan_dev_info(dev)->dev_list_mtx);
+ list_for_each_entry_safe(entry, tmp, &lowpan_devices, list) {
+ if (entry->ldev == dev) {
+ list_del(&entry->list);
+ kfree(entry);
+ }
+ }
+ mutex_unlock(&lowpan_dev_info(dev)->dev_list_mtx);
+
+ mutex_destroy(&lowpan_dev_info(dev)->dev_list_mtx);
+
+ unregister_netdevice_queue(dev, head);
+
+ dev_put(real_dev);
+}
+
+static struct rtnl_link_ops lowpan_link_ops __read_mostly = {
+ .kind = "lowpan",
+ .priv_size = sizeof(struct lowpan_dev_info),
+ .setup = lowpan_setup,
+ .newlink = lowpan_newlink,
+ .dellink = lowpan_dellink,
+ .validate = lowpan_validate,
+};
+
+static inline int __init lowpan_netlink_init(void)
+{
+ return rtnl_link_register(&lowpan_link_ops);
+}
+
+static inline void lowpan_netlink_fini(void)
+{
+ rtnl_link_unregister(&lowpan_link_ops);
+}
+
+static int lowpan_device_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+ LIST_HEAD(del_list);
+ struct lowpan_dev_record *entry, *tmp;
+
+ if (dev->type != ARPHRD_IEEE802154)
+ goto out;
+
+ if (event == NETDEV_UNREGISTER) {
+ list_for_each_entry_safe(entry, tmp, &lowpan_devices, list) {
+ if (lowpan_dev_info(entry->ldev)->real_dev == dev)
+ lowpan_dellink(entry->ldev, &del_list);
+ }
+
+ unregister_netdevice_many(&del_list);
+ }
+
+out:
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block lowpan_dev_notifier = {
+ .notifier_call = lowpan_device_event,
+};
+
+static int __init lowpan_init_module(void)
+{
+ int err = 0;
+
+ err = lowpan_net_frag_init();
+ if (err < 0)
+ goto out;
+
+ err = lowpan_netlink_init();
+ if (err < 0)
+ goto out_frag;
+
+ err = register_netdevice_notifier(&lowpan_dev_notifier);
+ if (err < 0)
+ goto out_pack;
+
+ return 0;
+
+out_pack:
+ lowpan_netlink_fini();
+out_frag:
+ lowpan_net_frag_exit();
+out:
+ return err;
+}
+
+static void __exit lowpan_cleanup_module(void)
+{
+ lowpan_netlink_fini();
+
+ lowpan_net_frag_exit();
+
+ unregister_netdevice_notifier(&lowpan_dev_notifier);
+}
+
+module_init(lowpan_init_module);
+module_exit(lowpan_cleanup_module);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_RTNL_LINK("lowpan");
diff --git a/net/ieee802154/reassembly.c b/net/ieee802154/6lowpan/reassembly.c
index 9d980ed3ffe2..f46e4d1306f2 100644
--- a/net/ieee802154/reassembly.c
+++ b/net/ieee802154/6lowpan/reassembly.c
@@ -28,7 +28,7 @@
#include <net/ipv6.h>
#include <net/inet_frag.h>
-#include "reassembly.h"
+#include "6lowpan_i.h"
static const char lowpan_frags_cache_name[] = "lowpan-frags";
diff --git a/net/ieee802154/6lowpan/rx.c b/net/ieee802154/6lowpan/rx.c
new file mode 100644
index 000000000000..4be1d289ab2d
--- /dev/null
+++ b/net/ieee802154/6lowpan/rx.c
@@ -0,0 +1,171 @@
+/* This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/if_arp.h>
+
+#include <net/6lowpan.h>
+#include <net/ieee802154_netdev.h>
+
+#include "6lowpan_i.h"
+
+static int lowpan_give_skb_to_devices(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct lowpan_dev_record *entry;
+ struct sk_buff *skb_cp;
+ int stat = NET_RX_SUCCESS;
+
+ skb->protocol = htons(ETH_P_IPV6);
+ skb->pkt_type = PACKET_HOST;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(entry, &lowpan_devices, list)
+ if (lowpan_dev_info(entry->ldev)->real_dev == skb->dev) {
+ skb_cp = skb_copy(skb, GFP_ATOMIC);
+ if (!skb_cp) {
+ kfree_skb(skb);
+ rcu_read_unlock();
+ return NET_RX_DROP;
+ }
+
+ skb_cp->dev = entry->ldev;
+ stat = netif_rx(skb_cp);
+ if (stat == NET_RX_DROP)
+ break;
+ }
+ rcu_read_unlock();
+
+ consume_skb(skb);
+
+ return stat;
+}
+
+static int
+iphc_decompress(struct sk_buff *skb, const struct ieee802154_hdr *hdr)
+{
+ u8 iphc0, iphc1;
+ struct ieee802154_addr_sa sa, da;
+ void *sap, *dap;
+
+ raw_dump_table(__func__, "raw skb data dump", skb->data, skb->len);
+ /* at least two bytes will be used for the encoding */
+ if (skb->len < 2)
+ return -EINVAL;
+
+ if (lowpan_fetch_skb_u8(skb, &iphc0))
+ return -EINVAL;
+
+ if (lowpan_fetch_skb_u8(skb, &iphc1))
+ return -EINVAL;
+
+ ieee802154_addr_to_sa(&sa, &hdr->source);
+ ieee802154_addr_to_sa(&da, &hdr->dest);
+
+ if (sa.addr_type == IEEE802154_ADDR_SHORT)
+ sap = &sa.short_addr;
+ else
+ sap = &sa.hwaddr;
+
+ if (da.addr_type == IEEE802154_ADDR_SHORT)
+ dap = &da.short_addr;
+ else
+ dap = &da.hwaddr;
+
+ return lowpan_header_decompress(skb, skb->dev, sap, sa.addr_type,
+ IEEE802154_ADDR_LEN, dap, da.addr_type,
+ IEEE802154_ADDR_LEN, iphc0, iphc1);
+}
+
+static int lowpan_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev)
+{
+ struct ieee802154_hdr hdr;
+ int ret;
+
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!skb)
+ goto drop;
+
+ if (!netif_running(dev))
+ goto drop_skb;
+
+ if (skb->pkt_type == PACKET_OTHERHOST)
+ goto drop_skb;
+
+ if (dev->type != ARPHRD_IEEE802154)
+ goto drop_skb;
+
+ if (ieee802154_hdr_peek_addrs(skb, &hdr) < 0)
+ goto drop_skb;
+
+ /* check that it's our buffer */
+ if (skb->data[0] == LOWPAN_DISPATCH_IPV6) {
+ /* Pull off the 1-byte of 6lowpan header. */
+ skb_pull(skb, 1);
+ return lowpan_give_skb_to_devices(skb, NULL);
+ } else {
+ switch (skb->data[0] & 0xe0) {
+ case LOWPAN_DISPATCH_IPHC: /* ipv6 datagram */
+ ret = iphc_decompress(skb, &hdr);
+ if (ret < 0)
+ goto drop_skb;
+
+ return lowpan_give_skb_to_devices(skb, NULL);
+ case LOWPAN_DISPATCH_FRAG1: /* first fragment header */
+ ret = lowpan_frag_rcv(skb, LOWPAN_DISPATCH_FRAG1);
+ if (ret == 1) {
+ ret = iphc_decompress(skb, &hdr);
+ if (ret < 0)
+ goto drop_skb;
+
+ return lowpan_give_skb_to_devices(skb, NULL);
+ } else if (ret == -1) {
+ return NET_RX_DROP;
+ } else {
+ return NET_RX_SUCCESS;
+ }
+ case LOWPAN_DISPATCH_FRAGN: /* next fragments headers */
+ ret = lowpan_frag_rcv(skb, LOWPAN_DISPATCH_FRAGN);
+ if (ret == 1) {
+ ret = iphc_decompress(skb, &hdr);
+ if (ret < 0)
+ goto drop_skb;
+
+ return lowpan_give_skb_to_devices(skb, NULL);
+ } else if (ret == -1) {
+ return NET_RX_DROP;
+ } else {
+ return NET_RX_SUCCESS;
+ }
+ default:
+ break;
+ }
+ }
+
+drop_skb:
+ kfree_skb(skb);
+drop:
+ return NET_RX_DROP;
+}
+
+static struct packet_type lowpan_packet_type = {
+ .type = htons(ETH_P_IEEE802154),
+ .func = lowpan_rcv,
+};
+
+void lowpan_rx_init(void)
+{
+ dev_add_pack(&lowpan_packet_type);
+}
+
+void lowpan_rx_exit(void)
+{
+ dev_remove_pack(&lowpan_packet_type);
+}
diff --git a/net/ieee802154/6lowpan/tx.c b/net/ieee802154/6lowpan/tx.c
new file mode 100644
index 000000000000..2349070bd534
--- /dev/null
+++ b/net/ieee802154/6lowpan/tx.c
@@ -0,0 +1,271 @@
+/* This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <net/6lowpan.h>
+#include <net/ieee802154_netdev.h>
+
+#include "6lowpan_i.h"
+
+/* don't save pan id, it's intra pan */
+struct lowpan_addr {
+ u8 mode;
+ union {
+ /* IPv6 needs big endian here */
+ __be64 extended_addr;
+ __be16 short_addr;
+ } u;
+};
+
+struct lowpan_addr_info {
+ struct lowpan_addr daddr;
+ struct lowpan_addr saddr;
+};
+
+static inline struct
+lowpan_addr_info *lowpan_skb_priv(const struct sk_buff *skb)
+{
+ WARN_ON_ONCE(skb_headroom(skb) < sizeof(struct lowpan_addr_info));
+ return (struct lowpan_addr_info *)(skb->data -
+ sizeof(struct lowpan_addr_info));
+}
+
+int lowpan_header_create(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, const void *_daddr,
+ const void *_saddr, unsigned int len)
+{
+ const u8 *saddr = _saddr;
+ const u8 *daddr = _daddr;
+ struct lowpan_addr_info *info;
+
+ /* TODO:
+ * if this package isn't ipv6 one, where should it be routed?
+ */
+ if (type != ETH_P_IPV6)
+ return 0;
+
+ if (!saddr)
+ saddr = dev->dev_addr;
+
+ raw_dump_inline(__func__, "saddr", (unsigned char *)saddr, 8);
+ raw_dump_inline(__func__, "daddr", (unsigned char *)daddr, 8);
+
+ info = lowpan_skb_priv(skb);
+
+ /* TODO: Currently we only support extended_addr */
+ info->daddr.mode = IEEE802154_ADDR_LONG;
+ memcpy(&info->daddr.u.extended_addr, daddr,
+ sizeof(info->daddr.u.extended_addr));
+ info->saddr.mode = IEEE802154_ADDR_LONG;
+ memcpy(&info->saddr.u.extended_addr, saddr,
+ sizeof(info->daddr.u.extended_addr));
+
+ return 0;
+}
+
+static struct sk_buff*
+lowpan_alloc_frag(struct sk_buff *skb, int size,
+ const struct ieee802154_hdr *master_hdr)
+{
+ struct net_device *real_dev = lowpan_dev_info(skb->dev)->real_dev;
+ struct sk_buff *frag;
+ int rc;
+
+ frag = alloc_skb(real_dev->hard_header_len +
+ real_dev->needed_tailroom + size,
+ GFP_ATOMIC);
+
+ if (likely(frag)) {
+ frag->dev = real_dev;
+ frag->priority = skb->priority;
+ skb_reserve(frag, real_dev->hard_header_len);
+ skb_reset_network_header(frag);
+ *mac_cb(frag) = *mac_cb(skb);
+
+ rc = dev_hard_header(frag, real_dev, 0, &master_hdr->dest,
+ &master_hdr->source, size);
+ if (rc < 0) {
+ kfree_skb(frag);
+ return ERR_PTR(rc);
+ }
+ } else {
+ frag = ERR_PTR(-ENOMEM);
+ }
+
+ return frag;
+}
+
+static int
+lowpan_xmit_fragment(struct sk_buff *skb, const struct ieee802154_hdr *wpan_hdr,
+ u8 *frag_hdr, int frag_hdrlen,
+ int offset, int len)
+{
+ struct sk_buff *frag;
+
+ raw_dump_inline(__func__, " fragment header", frag_hdr, frag_hdrlen);
+
+ frag = lowpan_alloc_frag(skb, frag_hdrlen + len, wpan_hdr);
+ if (IS_ERR(frag))
+ return -PTR_ERR(frag);
+
+ memcpy(skb_put(frag, frag_hdrlen), frag_hdr, frag_hdrlen);
+ memcpy(skb_put(frag, len), skb_network_header(skb) + offset, len);
+
+ raw_dump_table(__func__, " fragment dump", frag->data, frag->len);
+
+ return dev_queue_xmit(frag);
+}
+
+static int
+lowpan_xmit_fragmented(struct sk_buff *skb, struct net_device *dev,
+ const struct ieee802154_hdr *wpan_hdr)
+{
+ u16 dgram_size, dgram_offset;
+ __be16 frag_tag;
+ u8 frag_hdr[5];
+ int frag_cap, frag_len, payload_cap, rc;
+ int skb_unprocessed, skb_offset;
+
+ dgram_size = lowpan_uncompress_size(skb, &dgram_offset) -
+ skb->mac_len;
+ frag_tag = htons(lowpan_dev_info(dev)->fragment_tag);
+ lowpan_dev_info(dev)->fragment_tag++;
+
+ frag_hdr[0] = LOWPAN_DISPATCH_FRAG1 | ((dgram_size >> 8) & 0x07);
+ frag_hdr[1] = dgram_size & 0xff;
+ memcpy(frag_hdr + 2, &frag_tag, sizeof(frag_tag));
+
+ payload_cap = ieee802154_max_payload(wpan_hdr);
+
+ frag_len = round_down(payload_cap - LOWPAN_FRAG1_HEAD_SIZE -
+ skb_network_header_len(skb), 8);
+
+ skb_offset = skb_network_header_len(skb);
+ skb_unprocessed = skb->len - skb->mac_len - skb_offset;
+
+ rc = lowpan_xmit_fragment(skb, wpan_hdr, frag_hdr,
+ LOWPAN_FRAG1_HEAD_SIZE, 0,
+ frag_len + skb_network_header_len(skb));
+ if (rc) {
+ pr_debug("%s unable to send FRAG1 packet (tag: %d)",
+ __func__, ntohs(frag_tag));
+ goto err;
+ }
+
+ frag_hdr[0] &= ~LOWPAN_DISPATCH_FRAG1;
+ frag_hdr[0] |= LOWPAN_DISPATCH_FRAGN;
+ frag_cap = round_down(payload_cap - LOWPAN_FRAGN_HEAD_SIZE, 8);
+
+ do {
+ dgram_offset += frag_len;
+ skb_offset += frag_len;
+ skb_unprocessed -= frag_len;
+ frag_len = min(frag_cap, skb_unprocessed);
+
+ frag_hdr[4] = dgram_offset >> 3;
+
+ rc = lowpan_xmit_fragment(skb, wpan_hdr, frag_hdr,
+ LOWPAN_FRAGN_HEAD_SIZE, skb_offset,
+ frag_len);
+ if (rc) {
+ pr_debug("%s unable to send a FRAGN packet. (tag: %d, offset: %d)\n",
+ __func__, ntohs(frag_tag), skb_offset);
+ goto err;
+ }
+ } while (skb_unprocessed > frag_cap);
+
+ consume_skb(skb);
+ return NET_XMIT_SUCCESS;
+
+err:
+ kfree_skb(skb);
+ return rc;
+}
+
+static int lowpan_header(struct sk_buff *skb, struct net_device *dev)
+{
+ struct ieee802154_addr sa, da;
+ struct ieee802154_mac_cb *cb = mac_cb_init(skb);
+ struct lowpan_addr_info info;
+ void *daddr, *saddr;
+
+ memcpy(&info, lowpan_skb_priv(skb), sizeof(info));
+
+ /* TODO: Currently we only support extended_addr */
+ daddr = &info.daddr.u.extended_addr;
+ saddr = &info.saddr.u.extended_addr;
+
+ lowpan_header_compress(skb, dev, ETH_P_IPV6, daddr, saddr, skb->len);
+
+ cb->type = IEEE802154_FC_TYPE_DATA;
+
+ /* prepare wpan address data */
+ sa.mode = IEEE802154_ADDR_LONG;
+ sa.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
+ sa.extended_addr = ieee802154_devaddr_from_raw(saddr);
+
+ /* intra-PAN communications */
+ da.pan_id = sa.pan_id;
+
+ /* if the destination address is the broadcast address, use the
+ * corresponding short address
+ */
+ if (lowpan_is_addr_broadcast((const u8 *)daddr)) {
+ da.mode = IEEE802154_ADDR_SHORT;
+ da.short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST);
+ cb->ackreq = false;
+ } else {
+ da.mode = IEEE802154_ADDR_LONG;
+ da.extended_addr = ieee802154_devaddr_from_raw(daddr);
+ cb->ackreq = true;
+ }
+
+ return dev_hard_header(skb, lowpan_dev_info(dev)->real_dev,
+ ETH_P_IPV6, (void *)&da, (void *)&sa, 0);
+}
+
+netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct ieee802154_hdr wpan_hdr;
+ int max_single, ret;
+
+ pr_debug("package xmit\n");
+
+ /* We must take a copy of the skb before we modify/replace the ipv6
+ * header as the header could be used elsewhere
+ */
+ skb = skb_unshare(skb, GFP_ATOMIC);
+ if (!skb)
+ return NET_XMIT_DROP;
+
+ ret = lowpan_header(skb, dev);
+ if (ret < 0) {
+ kfree_skb(skb);
+ return NET_XMIT_DROP;
+ }
+
+ if (ieee802154_hdr_peek(skb, &wpan_hdr) < 0) {
+ kfree_skb(skb);
+ return NET_XMIT_DROP;
+ }
+
+ max_single = ieee802154_max_payload(&wpan_hdr);
+
+ if (skb_tail_pointer(skb) - skb_network_header(skb) <= max_single) {
+ skb->dev = lowpan_dev_info(dev)->real_dev;
+ return dev_queue_xmit(skb);
+ } else {
+ netdev_tx_t rc;
+
+ pr_debug("frame is too big, fragmentation is needed\n");
+ rc = lowpan_xmit_fragmented(skb, dev, &wpan_hdr);
+
+ return rc < 0 ? NET_XMIT_DROP : rc;
+ }
+}
diff --git a/net/ieee802154/6lowpan_rtnl.c b/net/ieee802154/6lowpan_rtnl.c
deleted file mode 100644
index 27eaa65e88e1..000000000000
--- a/net/ieee802154/6lowpan_rtnl.c
+++ /dev/null
@@ -1,729 +0,0 @@
-/* Copyright 2011, Siemens AG
- * written by Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
- */
-
-/* Based on patches from Jon Smirl <jonsmirl@gmail.com>
- * Copyright (c) 2011 Jon Smirl <jonsmirl@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-/* Jon's code is based on 6lowpan implementation for Contiki which is:
- * Copyright (c) 2008, Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <linux/bitops.h>
-#include <linux/if_arp.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/netdevice.h>
-#include <linux/ieee802154.h>
-#include <net/af_ieee802154.h>
-#include <net/ieee802154_netdev.h>
-#include <net/6lowpan.h>
-#include <net/ipv6.h>
-
-#include "reassembly.h"
-
-static LIST_HEAD(lowpan_devices);
-static int lowpan_open_count;
-
-/* private device info */
-struct lowpan_dev_info {
- struct net_device *real_dev; /* real WPAN device ptr */
- struct mutex dev_list_mtx; /* mutex for list ops */
- u16 fragment_tag;
-};
-
-struct lowpan_dev_record {
- struct net_device *ldev;
- struct list_head list;
-};
-
-/* don't save pan id, it's intra pan */
-struct lowpan_addr {
- u8 mode;
- union {
- /* IPv6 needs big endian here */
- __be64 extended_addr;
- __be16 short_addr;
- } u;
-};
-
-struct lowpan_addr_info {
- struct lowpan_addr daddr;
- struct lowpan_addr saddr;
-};
-
-static inline struct
-lowpan_dev_info *lowpan_dev_info(const struct net_device *dev)
-{
- return netdev_priv(dev);
-}
-
-static inline struct
-lowpan_addr_info *lowpan_skb_priv(const struct sk_buff *skb)
-{
- WARN_ON_ONCE(skb_headroom(skb) < sizeof(struct lowpan_addr_info));
- return (struct lowpan_addr_info *)(skb->data -
- sizeof(struct lowpan_addr_info));
-}
-
-static int lowpan_header_create(struct sk_buff *skb, struct net_device *dev,
- unsigned short type, const void *_daddr,
- const void *_saddr, unsigned int len)
-{
- const u8 *saddr = _saddr;
- const u8 *daddr = _daddr;
- struct lowpan_addr_info *info;
-
- /* TODO:
- * if this package isn't ipv6 one, where should it be routed?
- */
- if (type != ETH_P_IPV6)
- return 0;
-
- if (!saddr)
- saddr = dev->dev_addr;
-
- raw_dump_inline(__func__, "saddr", (unsigned char *)saddr, 8);
- raw_dump_inline(__func__, "daddr", (unsigned char *)daddr, 8);
-
- info = lowpan_skb_priv(skb);
-
- /* TODO: Currently we only support extended_addr */
- info->daddr.mode = IEEE802154_ADDR_LONG;
- memcpy(&info->daddr.u.extended_addr, daddr,
- sizeof(info->daddr.u.extended_addr));
- info->saddr.mode = IEEE802154_ADDR_LONG;
- memcpy(&info->saddr.u.extended_addr, saddr,
- sizeof(info->daddr.u.extended_addr));
-
- return 0;
-}
-
-static int lowpan_give_skb_to_devices(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct lowpan_dev_record *entry;
- struct sk_buff *skb_cp;
- int stat = NET_RX_SUCCESS;
-
- skb->protocol = htons(ETH_P_IPV6);
- skb->pkt_type = PACKET_HOST;
-
- rcu_read_lock();
- list_for_each_entry_rcu(entry, &lowpan_devices, list)
- if (lowpan_dev_info(entry->ldev)->real_dev == skb->dev) {
- skb_cp = skb_copy(skb, GFP_ATOMIC);
- if (!skb_cp) {
- kfree_skb(skb);
- rcu_read_unlock();
- return NET_RX_DROP;
- }
-
- skb_cp->dev = entry->ldev;
- stat = netif_rx(skb_cp);
- if (stat == NET_RX_DROP)
- break;
- }
- rcu_read_unlock();
-
- consume_skb(skb);
-
- return stat;
-}
-
-static int
-iphc_decompress(struct sk_buff *skb, const struct ieee802154_hdr *hdr)
-{
- u8 iphc0, iphc1;
- struct ieee802154_addr_sa sa, da;
- void *sap, *dap;
-
- raw_dump_table(__func__, "raw skb data dump", skb->data, skb->len);
- /* at least two bytes will be used for the encoding */
- if (skb->len < 2)
- return -EINVAL;
-
- if (lowpan_fetch_skb_u8(skb, &iphc0))
- return -EINVAL;
-
- if (lowpan_fetch_skb_u8(skb, &iphc1))
- return -EINVAL;
-
- ieee802154_addr_to_sa(&sa, &hdr->source);
- ieee802154_addr_to_sa(&da, &hdr->dest);
-
- if (sa.addr_type == IEEE802154_ADDR_SHORT)
- sap = &sa.short_addr;
- else
- sap = &sa.hwaddr;
-
- if (da.addr_type == IEEE802154_ADDR_SHORT)
- dap = &da.short_addr;
- else
- dap = &da.hwaddr;
-
- return lowpan_header_decompress(skb, skb->dev, sap, sa.addr_type,
- IEEE802154_ADDR_LEN, dap, da.addr_type,
- IEEE802154_ADDR_LEN, iphc0, iphc1);
-}
-
-static struct sk_buff*
-lowpan_alloc_frag(struct sk_buff *skb, int size,
- const struct ieee802154_hdr *master_hdr)
-{
- struct net_device *real_dev = lowpan_dev_info(skb->dev)->real_dev;
- struct sk_buff *frag;
- int rc;
-
- frag = alloc_skb(real_dev->hard_header_len +
- real_dev->needed_tailroom + size,
- GFP_ATOMIC);
-
- if (likely(frag)) {
- frag->dev = real_dev;
- frag->priority = skb->priority;
- skb_reserve(frag, real_dev->hard_header_len);
- skb_reset_network_header(frag);
- *mac_cb(frag) = *mac_cb(skb);
-
- rc = dev_hard_header(frag, real_dev, 0, &master_hdr->dest,
- &master_hdr->source, size);
- if (rc < 0) {
- kfree_skb(frag);
- return ERR_PTR(rc);
- }
- } else {
- frag = ERR_PTR(-ENOMEM);
- }
-
- return frag;
-}
-
-static int
-lowpan_xmit_fragment(struct sk_buff *skb, const struct ieee802154_hdr *wpan_hdr,
- u8 *frag_hdr, int frag_hdrlen,
- int offset, int len)
-{
- struct sk_buff *frag;
-
- raw_dump_inline(__func__, " fragment header", frag_hdr, frag_hdrlen);
-
- frag = lowpan_alloc_frag(skb, frag_hdrlen + len, wpan_hdr);
- if (IS_ERR(frag))
- return -PTR_ERR(frag);
-
- memcpy(skb_put(frag, frag_hdrlen), frag_hdr, frag_hdrlen);
- memcpy(skb_put(frag, len), skb_network_header(skb) + offset, len);
-
- raw_dump_table(__func__, " fragment dump", frag->data, frag->len);
-
- return dev_queue_xmit(frag);
-}
-
-static int
-lowpan_xmit_fragmented(struct sk_buff *skb, struct net_device *dev,
- const struct ieee802154_hdr *wpan_hdr)
-{
- u16 dgram_size, dgram_offset;
- __be16 frag_tag;
- u8 frag_hdr[5];
- int frag_cap, frag_len, payload_cap, rc;
- int skb_unprocessed, skb_offset;
-
- dgram_size = lowpan_uncompress_size(skb, &dgram_offset) -
- skb->mac_len;
- frag_tag = htons(lowpan_dev_info(dev)->fragment_tag);
- lowpan_dev_info(dev)->fragment_tag++;
-
- frag_hdr[0] = LOWPAN_DISPATCH_FRAG1 | ((dgram_size >> 8) & 0x07);
- frag_hdr[1] = dgram_size & 0xff;
- memcpy(frag_hdr + 2, &frag_tag, sizeof(frag_tag));
-
- payload_cap = ieee802154_max_payload(wpan_hdr);
-
- frag_len = round_down(payload_cap - LOWPAN_FRAG1_HEAD_SIZE -
- skb_network_header_len(skb), 8);
-
- skb_offset = skb_network_header_len(skb);
- skb_unprocessed = skb->len - skb->mac_len - skb_offset;
-
- rc = lowpan_xmit_fragment(skb, wpan_hdr, frag_hdr,
- LOWPAN_FRAG1_HEAD_SIZE, 0,
- frag_len + skb_network_header_len(skb));
- if (rc) {
- pr_debug("%s unable to send FRAG1 packet (tag: %d)",
- __func__, ntohs(frag_tag));
- goto err;
- }
-
- frag_hdr[0] &= ~LOWPAN_DISPATCH_FRAG1;
- frag_hdr[0] |= LOWPAN_DISPATCH_FRAGN;
- frag_cap = round_down(payload_cap - LOWPAN_FRAGN_HEAD_SIZE, 8);
-
- do {
- dgram_offset += frag_len;
- skb_offset += frag_len;
- skb_unprocessed -= frag_len;
- frag_len = min(frag_cap, skb_unprocessed);
-
- frag_hdr[4] = dgram_offset >> 3;
-
- rc = lowpan_xmit_fragment(skb, wpan_hdr, frag_hdr,
- LOWPAN_FRAGN_HEAD_SIZE, skb_offset,
- frag_len);
- if (rc) {
- pr_debug("%s unable to send a FRAGN packet. (tag: %d, offset: %d)\n",
- __func__, ntohs(frag_tag), skb_offset);
- goto err;
- }
- } while (skb_unprocessed > frag_cap);
-
- consume_skb(skb);
- return NET_XMIT_SUCCESS;
-
-err:
- kfree_skb(skb);
- return rc;
-}
-
-static int lowpan_header(struct sk_buff *skb, struct net_device *dev)
-{
- struct ieee802154_addr sa, da;
- struct ieee802154_mac_cb *cb = mac_cb_init(skb);
- struct lowpan_addr_info info;
- void *daddr, *saddr;
-
- memcpy(&info, lowpan_skb_priv(skb), sizeof(info));
-
- /* TODO: Currently we only support extended_addr */
- daddr = &info.daddr.u.extended_addr;
- saddr = &info.saddr.u.extended_addr;
-
- lowpan_header_compress(skb, dev, ETH_P_IPV6, daddr, saddr, skb->len);
-
- cb->type = IEEE802154_FC_TYPE_DATA;
-
- /* prepare wpan address data */
- sa.mode = IEEE802154_ADDR_LONG;
- sa.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
- sa.extended_addr = ieee802154_devaddr_from_raw(saddr);
-
- /* intra-PAN communications */
- da.pan_id = sa.pan_id;
-
- /* if the destination address is the broadcast address, use the
- * corresponding short address
- */
- if (lowpan_is_addr_broadcast((const u8 *)daddr)) {
- da.mode = IEEE802154_ADDR_SHORT;
- da.short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST);
- cb->ackreq = false;
- } else {
- da.mode = IEEE802154_ADDR_LONG;
- da.extended_addr = ieee802154_devaddr_from_raw(daddr);
- cb->ackreq = true;
- }
-
- return dev_hard_header(skb, lowpan_dev_info(dev)->real_dev,
- ETH_P_IPV6, (void *)&da, (void *)&sa, 0);
-}
-
-static netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct ieee802154_hdr wpan_hdr;
- int max_single, ret;
-
- pr_debug("package xmit\n");
-
- /* We must take a copy of the skb before we modify/replace the ipv6
- * header as the header could be used elsewhere
- */
- skb = skb_unshare(skb, GFP_ATOMIC);
- if (!skb)
- return NET_XMIT_DROP;
-
- ret = lowpan_header(skb, dev);
- if (ret < 0) {
- kfree_skb(skb);
- return NET_XMIT_DROP;
- }
-
- if (ieee802154_hdr_peek(skb, &wpan_hdr) < 0) {
- kfree_skb(skb);
- return NET_XMIT_DROP;
- }
-
- max_single = ieee802154_max_payload(&wpan_hdr);
-
- if (skb_tail_pointer(skb) - skb_network_header(skb) <= max_single) {
- skb->dev = lowpan_dev_info(dev)->real_dev;
- return dev_queue_xmit(skb);
- } else {
- netdev_tx_t rc;
-
- pr_debug("frame is too big, fragmentation is needed\n");
- rc = lowpan_xmit_fragmented(skb, dev, &wpan_hdr);
-
- return rc < 0 ? NET_XMIT_DROP : rc;
- }
-}
-
-static __le16 lowpan_get_pan_id(const struct net_device *dev)
-{
- struct net_device *real_dev = lowpan_dev_info(dev)->real_dev;
-
- return ieee802154_mlme_ops(real_dev)->get_pan_id(real_dev);
-}
-
-static __le16 lowpan_get_short_addr(const struct net_device *dev)
-{
- struct net_device *real_dev = lowpan_dev_info(dev)->real_dev;
-
- return ieee802154_mlme_ops(real_dev)->get_short_addr(real_dev);
-}
-
-static u8 lowpan_get_dsn(const struct net_device *dev)
-{
- struct net_device *real_dev = lowpan_dev_info(dev)->real_dev;
-
- return ieee802154_mlme_ops(real_dev)->get_dsn(real_dev);
-}
-
-static struct header_ops lowpan_header_ops = {
- .create = lowpan_header_create,
-};
-
-static struct lock_class_key lowpan_tx_busylock;
-static struct lock_class_key lowpan_netdev_xmit_lock_key;
-
-static void lowpan_set_lockdep_class_one(struct net_device *dev,
- struct netdev_queue *txq,
- void *_unused)
-{
- lockdep_set_class(&txq->_xmit_lock,
- &lowpan_netdev_xmit_lock_key);
-}
-
-static int lowpan_dev_init(struct net_device *dev)
-{
- netdev_for_each_tx_queue(dev, lowpan_set_lockdep_class_one, NULL);
- dev->qdisc_tx_busylock = &lowpan_tx_busylock;
- return 0;
-}
-
-static const struct net_device_ops lowpan_netdev_ops = {
- .ndo_init = lowpan_dev_init,
- .ndo_start_xmit = lowpan_xmit,
-};
-
-static struct ieee802154_mlme_ops lowpan_mlme = {
- .get_pan_id = lowpan_get_pan_id,
- .get_short_addr = lowpan_get_short_addr,
- .get_dsn = lowpan_get_dsn,
-};
-
-static void lowpan_setup(struct net_device *dev)
-{
- dev->addr_len = IEEE802154_ADDR_LEN;
- memset(dev->broadcast, 0xff, IEEE802154_ADDR_LEN);
- dev->type = ARPHRD_IEEE802154;
- /* Frame Control + Sequence Number + Address fields + Security Header */
- dev->hard_header_len = 2 + 1 + 20 + 14;
- dev->needed_tailroom = 2; /* FCS */
- dev->mtu = IPV6_MIN_MTU;
- dev->tx_queue_len = 0;
- dev->flags = IFF_BROADCAST | IFF_MULTICAST;
- dev->watchdog_timeo = 0;
-
- dev->netdev_ops = &lowpan_netdev_ops;
- dev->header_ops = &lowpan_header_ops;
- dev->ml_priv = &lowpan_mlme;
- dev->destructor = free_netdev;
-}
-
-static int lowpan_validate(struct nlattr *tb[], struct nlattr *data[])
-{
- if (tb[IFLA_ADDRESS]) {
- if (nla_len(tb[IFLA_ADDRESS]) != IEEE802154_ADDR_LEN)
- return -EINVAL;
- }
- return 0;
-}
-
-static int lowpan_rcv(struct sk_buff *skb, struct net_device *dev,
- struct packet_type *pt, struct net_device *orig_dev)
-{
- struct ieee802154_hdr hdr;
- int ret;
-
- skb = skb_share_check(skb, GFP_ATOMIC);
- if (!skb)
- goto drop;
-
- if (!netif_running(dev))
- goto drop_skb;
-
- if (skb->pkt_type == PACKET_OTHERHOST)
- goto drop_skb;
-
- if (dev->type != ARPHRD_IEEE802154)
- goto drop_skb;
-
- if (ieee802154_hdr_peek_addrs(skb, &hdr) < 0)
- goto drop_skb;
-
- /* check that it's our buffer */
- if (skb->data[0] == LOWPAN_DISPATCH_IPV6) {
- /* Pull off the 1-byte of 6lowpan header. */
- skb_pull(skb, 1);
- return lowpan_give_skb_to_devices(skb, NULL);
- } else {
- switch (skb->data[0] & 0xe0) {
- case LOWPAN_DISPATCH_IPHC: /* ipv6 datagram */
- ret = iphc_decompress(skb, &hdr);
- if (ret < 0)
- goto drop_skb;
-
- return lowpan_give_skb_to_devices(skb, NULL);
- case LOWPAN_DISPATCH_FRAG1: /* first fragment header */
- ret = lowpan_frag_rcv(skb, LOWPAN_DISPATCH_FRAG1);
- if (ret == 1) {
- ret = iphc_decompress(skb, &hdr);
- if (ret < 0)
- goto drop_skb;
-
- return lowpan_give_skb_to_devices(skb, NULL);
- } else if (ret == -1) {
- return NET_RX_DROP;
- } else {
- return NET_RX_SUCCESS;
- }
- case LOWPAN_DISPATCH_FRAGN: /* next fragments headers */
- ret = lowpan_frag_rcv(skb, LOWPAN_DISPATCH_FRAGN);
- if (ret == 1) {
- ret = iphc_decompress(skb, &hdr);
- if (ret < 0)
- goto drop_skb;
-
- return lowpan_give_skb_to_devices(skb, NULL);
- } else if (ret == -1) {
- return NET_RX_DROP;
- } else {
- return NET_RX_SUCCESS;
- }
- default:
- break;
- }
- }
-
-drop_skb:
- kfree_skb(skb);
-drop:
- return NET_RX_DROP;
-}
-
-static struct packet_type lowpan_packet_type = {
- .type = htons(ETH_P_IEEE802154),
- .func = lowpan_rcv,
-};
-
-static int lowpan_newlink(struct net *src_net, struct net_device *dev,
- struct nlattr *tb[], struct nlattr *data[])
-{
- struct net_device *real_dev;
- struct lowpan_dev_record *entry;
- int ret;
-
- ASSERT_RTNL();
-
- pr_debug("adding new link\n");
-
- if (!tb[IFLA_LINK])
- return -EINVAL;
- /* find and hold real wpan device */
- real_dev = dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK]));
- if (!real_dev)
- return -ENODEV;
- if (real_dev->type != ARPHRD_IEEE802154) {
- dev_put(real_dev);
- return -EINVAL;
- }
-
- lowpan_dev_info(dev)->real_dev = real_dev;
- mutex_init(&lowpan_dev_info(dev)->dev_list_mtx);
-
- entry = kzalloc(sizeof(*entry), GFP_KERNEL);
- if (!entry) {
- dev_put(real_dev);
- lowpan_dev_info(dev)->real_dev = NULL;
- return -ENOMEM;
- }
-
- entry->ldev = dev;
-
- /* Set the lowpan hardware address to the wpan hardware address. */
- memcpy(dev->dev_addr, real_dev->dev_addr, IEEE802154_ADDR_LEN);
-
- mutex_lock(&lowpan_dev_info(dev)->dev_list_mtx);
- INIT_LIST_HEAD(&entry->list);
- list_add_tail(&entry->list, &lowpan_devices);
- mutex_unlock(&lowpan_dev_info(dev)->dev_list_mtx);
-
- ret = register_netdevice(dev);
- if (ret >= 0) {
- if (!lowpan_open_count)
- dev_add_pack(&lowpan_packet_type);
- lowpan_open_count++;
- }
-
- return ret;
-}
-
-static void lowpan_dellink(struct net_device *dev, struct list_head *head)
-{
- struct lowpan_dev_info *lowpan_dev = lowpan_dev_info(dev);
- struct net_device *real_dev = lowpan_dev->real_dev;
- struct lowpan_dev_record *entry, *tmp;
-
- ASSERT_RTNL();
-
- lowpan_open_count--;
- if (!lowpan_open_count)
- dev_remove_pack(&lowpan_packet_type);
-
- mutex_lock(&lowpan_dev_info(dev)->dev_list_mtx);
- list_for_each_entry_safe(entry, tmp, &lowpan_devices, list) {
- if (entry->ldev == dev) {
- list_del(&entry->list);
- kfree(entry);
- }
- }
- mutex_unlock(&lowpan_dev_info(dev)->dev_list_mtx);
-
- mutex_destroy(&lowpan_dev_info(dev)->dev_list_mtx);
-
- unregister_netdevice_queue(dev, head);
-
- dev_put(real_dev);
-}
-
-static struct rtnl_link_ops lowpan_link_ops __read_mostly = {
- .kind = "lowpan",
- .priv_size = sizeof(struct lowpan_dev_info),
- .setup = lowpan_setup,
- .newlink = lowpan_newlink,
- .dellink = lowpan_dellink,
- .validate = lowpan_validate,
-};
-
-static inline int __init lowpan_netlink_init(void)
-{
- return rtnl_link_register(&lowpan_link_ops);
-}
-
-static inline void lowpan_netlink_fini(void)
-{
- rtnl_link_unregister(&lowpan_link_ops);
-}
-
-static int lowpan_device_event(struct notifier_block *unused,
- unsigned long event, void *ptr)
-{
- struct net_device *dev = netdev_notifier_info_to_dev(ptr);
- LIST_HEAD(del_list);
- struct lowpan_dev_record *entry, *tmp;
-
- if (dev->type != ARPHRD_IEEE802154)
- goto out;
-
- if (event == NETDEV_UNREGISTER) {
- list_for_each_entry_safe(entry, tmp, &lowpan_devices, list) {
- if (lowpan_dev_info(entry->ldev)->real_dev == dev)
- lowpan_dellink(entry->ldev, &del_list);
- }
-
- unregister_netdevice_many(&del_list);
- }
-
-out:
- return NOTIFY_DONE;
-}
-
-static struct notifier_block lowpan_dev_notifier = {
- .notifier_call = lowpan_device_event,
-};
-
-static int __init lowpan_init_module(void)
-{
- int err = 0;
-
- err = lowpan_net_frag_init();
- if (err < 0)
- goto out;
-
- err = lowpan_netlink_init();
- if (err < 0)
- goto out_frag;
-
- err = register_netdevice_notifier(&lowpan_dev_notifier);
- if (err < 0)
- goto out_pack;
-
- return 0;
-
-out_pack:
- lowpan_netlink_fini();
-out_frag:
- lowpan_net_frag_exit();
-out:
- return err;
-}
-
-static void __exit lowpan_cleanup_module(void)
-{
- lowpan_netlink_fini();
-
- lowpan_net_frag_exit();
-
- unregister_netdevice_notifier(&lowpan_dev_notifier);
-}
-
-module_init(lowpan_init_module);
-module_exit(lowpan_cleanup_module);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_RTNL_LINK("lowpan");
diff --git a/net/ieee802154/Kconfig b/net/ieee802154/Kconfig
index c0d4154d144f..1370d5b0041b 100644
--- a/net/ieee802154/Kconfig
+++ b/net/ieee802154/Kconfig
@@ -1,4 +1,4 @@
-config IEEE802154
+menuconfig IEEE802154
tristate "IEEE Std 802.15.4 Low-Rate Wireless Personal Area Networks support"
---help---
IEEE Std 802.15.4 defines a low data rate, low power and low
@@ -10,8 +10,16 @@ config IEEE802154
Say Y here to compile LR-WPAN support into the kernel or say M to
compile it as modules.
-config IEEE802154_6LOWPAN
- tristate "6lowpan support over IEEE 802.15.4"
- depends on IEEE802154 && 6LOWPAN
+if IEEE802154
+
+config IEEE802154_SOCKET
+ tristate "IEEE 802.15.4 socket interface"
+ default y
---help---
- IPv6 compression over IEEE 802.15.4.
+ Socket interface for IEEE 802.15.4. Contains DGRAM sockets interface
+ for 802.15.4 dataframes. Also RAW socket interface to build MAC
+ header from userspace.
+
+source "net/ieee802154/6lowpan/Kconfig"
+
+endif
diff --git a/net/ieee802154/Makefile b/net/ieee802154/Makefile
index 9f6970f2a28b..05dab2957cd4 100644
--- a/net/ieee802154/Makefile
+++ b/net/ieee802154/Makefile
@@ -1,9 +1,9 @@
-obj-$(CONFIG_IEEE802154) += ieee802154.o af_802154.o
-obj-$(CONFIG_IEEE802154_6LOWPAN) += ieee802154_6lowpan.o
+obj-$(CONFIG_IEEE802154) += ieee802154.o
+obj-$(CONFIG_IEEE802154_SOCKET) += ieee802154_socket.o
+obj-y += 6lowpan/
-ieee802154_6lowpan-y := 6lowpan_rtnl.o reassembly.o
ieee802154-y := netlink.o nl-mac.o nl-phy.o nl_policy.o core.o \
header_ops.o sysfs.o nl802154.o
-af_802154-y := af_ieee802154.o raw.o dgram.o
+ieee802154_socket-y := socket.o
ccflags-y += -D__CHECK_ENDIAN__
diff --git a/net/ieee802154/af802154.h b/net/ieee802154/af802154.h
deleted file mode 100644
index 343b63e6f953..000000000000
--- a/net/ieee802154/af802154.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Internal interfaces for ieee 802.15.4 address family.
- *
- * Copyright 2007, 2008, 2009 Siemens AG
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Written by:
- * Sergey Lapin <slapin@ossfans.org>
- * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
- */
-
-#ifndef AF802154_H
-#define AF802154_H
-
-struct sk_buff;
-struct net_device;
-struct ieee802154_addr;
-extern struct proto ieee802154_raw_prot;
-extern struct proto ieee802154_dgram_prot;
-void ieee802154_raw_deliver(struct net_device *dev, struct sk_buff *skb);
-int ieee802154_dgram_deliver(struct net_device *dev, struct sk_buff *skb);
-struct net_device *ieee802154_get_dev(struct net *net,
- const struct ieee802154_addr *addr);
-
-#endif
diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c
deleted file mode 100644
index d0a1282cdf43..000000000000
--- a/net/ieee802154/af_ieee802154.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/*
- * IEEE802154.4 socket interface
- *
- * Copyright 2007, 2008 Siemens AG
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Written by:
- * Sergey Lapin <slapin@ossfans.org>
- * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
- */
-
-#include <linux/net.h>
-#include <linux/capability.h>
-#include <linux/module.h>
-#include <linux/if_arp.h>
-#include <linux/if.h>
-#include <linux/termios.h> /* For TIOCOUTQ/INQ */
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <net/datalink.h>
-#include <net/psnap.h>
-#include <net/sock.h>
-#include <net/tcp_states.h>
-#include <net/route.h>
-
-#include <net/af_ieee802154.h>
-#include <net/ieee802154_netdev.h>
-
-#include "af802154.h"
-
-/* Utility function for families */
-struct net_device*
-ieee802154_get_dev(struct net *net, const struct ieee802154_addr *addr)
-{
- struct net_device *dev = NULL;
- struct net_device *tmp;
- __le16 pan_id, short_addr;
- u8 hwaddr[IEEE802154_ADDR_LEN];
-
- switch (addr->mode) {
- case IEEE802154_ADDR_LONG:
- ieee802154_devaddr_to_raw(hwaddr, addr->extended_addr);
- rcu_read_lock();
- dev = dev_getbyhwaddr_rcu(net, ARPHRD_IEEE802154, hwaddr);
- if (dev)
- dev_hold(dev);
- rcu_read_unlock();
- break;
- case IEEE802154_ADDR_SHORT:
- if (addr->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST) ||
- addr->short_addr == cpu_to_le16(IEEE802154_ADDR_UNDEF) ||
- addr->short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST))
- break;
-
- rtnl_lock();
-
- for_each_netdev(net, tmp) {
- if (tmp->type != ARPHRD_IEEE802154)
- continue;
-
- pan_id = ieee802154_mlme_ops(tmp)->get_pan_id(tmp);
- short_addr =
- ieee802154_mlme_ops(tmp)->get_short_addr(tmp);
-
- if (pan_id == addr->pan_id &&
- short_addr == addr->short_addr) {
- dev = tmp;
- dev_hold(dev);
- break;
- }
- }
-
- rtnl_unlock();
- break;
- default:
- pr_warn("Unsupported ieee802154 address type: %d\n",
- addr->mode);
- break;
- }
-
- return dev;
-}
-
-static int ieee802154_sock_release(struct socket *sock)
-{
- struct sock *sk = sock->sk;
-
- if (sk) {
- sock->sk = NULL;
- sk->sk_prot->close(sk, 0);
- }
- return 0;
-}
-
-static int ieee802154_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
- struct msghdr *msg, size_t len)
-{
- struct sock *sk = sock->sk;
-
- return sk->sk_prot->sendmsg(iocb, sk, msg, len);
-}
-
-static int ieee802154_sock_bind(struct socket *sock, struct sockaddr *uaddr,
- int addr_len)
-{
- struct sock *sk = sock->sk;
-
- if (sk->sk_prot->bind)
- return sk->sk_prot->bind(sk, uaddr, addr_len);
-
- return sock_no_bind(sock, uaddr, addr_len);
-}
-
-static int ieee802154_sock_connect(struct socket *sock, struct sockaddr *uaddr,
- int addr_len, int flags)
-{
- struct sock *sk = sock->sk;
-
- if (addr_len < sizeof(uaddr->sa_family))
- return -EINVAL;
-
- if (uaddr->sa_family == AF_UNSPEC)
- return sk->sk_prot->disconnect(sk, flags);
-
- return sk->sk_prot->connect(sk, uaddr, addr_len);
-}
-
-static int ieee802154_dev_ioctl(struct sock *sk, struct ifreq __user *arg,
- unsigned int cmd)
-{
- struct ifreq ifr;
- int ret = -ENOIOCTLCMD;
- struct net_device *dev;
-
- if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
- return -EFAULT;
-
- ifr.ifr_name[IFNAMSIZ-1] = 0;
-
- dev_load(sock_net(sk), ifr.ifr_name);
- dev = dev_get_by_name(sock_net(sk), ifr.ifr_name);
-
- if (!dev)
- return -ENODEV;
-
- if (dev->type == ARPHRD_IEEE802154 && dev->netdev_ops->ndo_do_ioctl)
- ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd);
-
- if (!ret && copy_to_user(arg, &ifr, sizeof(struct ifreq)))
- ret = -EFAULT;
- dev_put(dev);
-
- return ret;
-}
-
-static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd,
- unsigned long arg)
-{
- struct sock *sk = sock->sk;
-
- switch (cmd) {
- case SIOCGSTAMP:
- return sock_get_timestamp(sk, (struct timeval __user *)arg);
- case SIOCGSTAMPNS:
- return sock_get_timestampns(sk, (struct timespec __user *)arg);
- case SIOCGIFADDR:
- case SIOCSIFADDR:
- return ieee802154_dev_ioctl(sk, (struct ifreq __user *)arg,
- cmd);
- default:
- if (!sk->sk_prot->ioctl)
- return -ENOIOCTLCMD;
- return sk->sk_prot->ioctl(sk, cmd, arg);
- }
-}
-
-static const struct proto_ops ieee802154_raw_ops = {
- .family = PF_IEEE802154,
- .owner = THIS_MODULE,
- .release = ieee802154_sock_release,
- .bind = ieee802154_sock_bind,
- .connect = ieee802154_sock_connect,
- .socketpair = sock_no_socketpair,
- .accept = sock_no_accept,
- .getname = sock_no_getname,
- .poll = datagram_poll,
- .ioctl = ieee802154_sock_ioctl,
- .listen = sock_no_listen,
- .shutdown = sock_no_shutdown,
- .setsockopt = sock_common_setsockopt,
- .getsockopt = sock_common_getsockopt,
- .sendmsg = ieee802154_sock_sendmsg,
- .recvmsg = sock_common_recvmsg,
- .mmap = sock_no_mmap,
- .sendpage = sock_no_sendpage,
-#ifdef CONFIG_COMPAT
- .compat_setsockopt = compat_sock_common_setsockopt,
- .compat_getsockopt = compat_sock_common_getsockopt,
-#endif
-};
-
-static const struct proto_ops ieee802154_dgram_ops = {
- .family = PF_IEEE802154,
- .owner = THIS_MODULE,
- .release = ieee802154_sock_release,
- .bind = ieee802154_sock_bind,
- .connect = ieee802154_sock_connect,
- .socketpair = sock_no_socketpair,
- .accept = sock_no_accept,
- .getname = sock_no_getname,
- .poll = datagram_poll,
- .ioctl = ieee802154_sock_ioctl,
- .listen = sock_no_listen,
- .shutdown = sock_no_shutdown,
- .setsockopt = sock_common_setsockopt,
- .getsockopt = sock_common_getsockopt,
- .sendmsg = ieee802154_sock_sendmsg,
- .recvmsg = sock_common_recvmsg,
- .mmap = sock_no_mmap,
- .sendpage = sock_no_sendpage,
-#ifdef CONFIG_COMPAT
- .compat_setsockopt = compat_sock_common_setsockopt,
- .compat_getsockopt = compat_sock_common_getsockopt,
-#endif
-};
-
-/* Create a socket. Initialise the socket, blank the addresses
- * set the state.
- */
-static int ieee802154_create(struct net *net, struct socket *sock,
- int protocol, int kern)
-{
- struct sock *sk;
- int rc;
- struct proto *proto;
- const struct proto_ops *ops;
-
- if (!net_eq(net, &init_net))
- return -EAFNOSUPPORT;
-
- switch (sock->type) {
- case SOCK_RAW:
- proto = &ieee802154_raw_prot;
- ops = &ieee802154_raw_ops;
- break;
- case SOCK_DGRAM:
- proto = &ieee802154_dgram_prot;
- ops = &ieee802154_dgram_ops;
- break;
- default:
- rc = -ESOCKTNOSUPPORT;
- goto out;
- }
-
- rc = -ENOMEM;
- sk = sk_alloc(net, PF_IEEE802154, GFP_KERNEL, proto);
- if (!sk)
- goto out;
- rc = 0;
-
- sock->ops = ops;
-
- sock_init_data(sock, sk);
- /* FIXME: sk->sk_destruct */
- sk->sk_family = PF_IEEE802154;
-
- /* Checksums on by default */
- sock_set_flag(sk, SOCK_ZAPPED);
-
- if (sk->sk_prot->hash)
- sk->sk_prot->hash(sk);
-
- if (sk->sk_prot->init) {
- rc = sk->sk_prot->init(sk);
- if (rc)
- sk_common_release(sk);
- }
-out:
- return rc;
-}
-
-static const struct net_proto_family ieee802154_family_ops = {
- .family = PF_IEEE802154,
- .create = ieee802154_create,
- .owner = THIS_MODULE,
-};
-
-static int ieee802154_rcv(struct sk_buff *skb, struct net_device *dev,
- struct packet_type *pt, struct net_device *orig_dev)
-{
- if (!netif_running(dev))
- goto drop;
- pr_debug("got frame, type %d, dev %p\n", dev->type, dev);
-#ifdef DEBUG
- print_hex_dump_bytes("ieee802154_rcv ",
- DUMP_PREFIX_NONE, skb->data, skb->len);
-#endif
-
- if (!net_eq(dev_net(dev), &init_net))
- goto drop;
-
- ieee802154_raw_deliver(dev, skb);
-
- if (dev->type != ARPHRD_IEEE802154)
- goto drop;
-
- if (skb->pkt_type != PACKET_OTHERHOST)
- return ieee802154_dgram_deliver(dev, skb);
-
-drop:
- kfree_skb(skb);
- return NET_RX_DROP;
-}
-
-static struct packet_type ieee802154_packet_type = {
- .type = htons(ETH_P_IEEE802154),
- .func = ieee802154_rcv,
-};
-
-static int __init af_ieee802154_init(void)
-{
- int rc = -EINVAL;
-
- rc = proto_register(&ieee802154_raw_prot, 1);
- if (rc)
- goto out;
-
- rc = proto_register(&ieee802154_dgram_prot, 1);
- if (rc)
- goto err_dgram;
-
- /* Tell SOCKET that we are alive */
- rc = sock_register(&ieee802154_family_ops);
- if (rc)
- goto err_sock;
- dev_add_pack(&ieee802154_packet_type);
-
- rc = 0;
- goto out;
-
-err_sock:
- proto_unregister(&ieee802154_dgram_prot);
-err_dgram:
- proto_unregister(&ieee802154_raw_prot);
-out:
- return rc;
-}
-
-static void __exit af_ieee802154_remove(void)
-{
- dev_remove_pack(&ieee802154_packet_type);
- sock_unregister(PF_IEEE802154);
- proto_unregister(&ieee802154_dgram_prot);
- proto_unregister(&ieee802154_raw_prot);
-}
-
-module_init(af_ieee802154_init);
-module_exit(af_ieee802154_remove);
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_NETPROTO(PF_IEEE802154);
diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c
deleted file mode 100644
index d1930b70c4aa..000000000000
--- a/net/ieee802154/dgram.c
+++ /dev/null
@@ -1,549 +0,0 @@
-/*
- * IEEE 802.15.4 dgram socket interface
- *
- * Copyright 2007, 2008 Siemens AG
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Written by:
- * Sergey Lapin <slapin@ossfans.org>
- * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
- */
-
-#include <linux/capability.h>
-#include <linux/net.h>
-#include <linux/module.h>
-#include <linux/if_arp.h>
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <linux/ieee802154.h>
-#include <net/sock.h>
-#include <net/af_ieee802154.h>
-#include <net/ieee802154_netdev.h>
-
-#include <asm/ioctls.h>
-
-#include "af802154.h"
-
-static HLIST_HEAD(dgram_head);
-static DEFINE_RWLOCK(dgram_lock);
-
-struct dgram_sock {
- struct sock sk;
-
- struct ieee802154_addr src_addr;
- struct ieee802154_addr dst_addr;
-
- unsigned int bound:1;
- unsigned int connected:1;
- unsigned int want_ack:1;
- unsigned int secen:1;
- unsigned int secen_override:1;
- unsigned int seclevel:3;
- unsigned int seclevel_override:1;
-};
-
-static inline struct dgram_sock *dgram_sk(const struct sock *sk)
-{
- return container_of(sk, struct dgram_sock, sk);
-}
-
-static void dgram_hash(struct sock *sk)
-{
- write_lock_bh(&dgram_lock);
- sk_add_node(sk, &dgram_head);
- sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
- write_unlock_bh(&dgram_lock);
-}
-
-static void dgram_unhash(struct sock *sk)
-{
- write_lock_bh(&dgram_lock);
- if (sk_del_node_init(sk))
- sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
- write_unlock_bh(&dgram_lock);
-}
-
-static int dgram_init(struct sock *sk)
-{
- struct dgram_sock *ro = dgram_sk(sk);
-
- ro->want_ack = 1;
- return 0;
-}
-
-static void dgram_close(struct sock *sk, long timeout)
-{
- sk_common_release(sk);
-}
-
-static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
-{
- struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
- struct ieee802154_addr haddr;
- struct dgram_sock *ro = dgram_sk(sk);
- int err = -EINVAL;
- struct net_device *dev;
-
- lock_sock(sk);
-
- ro->bound = 0;
-
- if (len < sizeof(*addr))
- goto out;
-
- if (addr->family != AF_IEEE802154)
- goto out;
-
- ieee802154_addr_from_sa(&haddr, &addr->addr);
- dev = ieee802154_get_dev(sock_net(sk), &haddr);
- if (!dev) {
- err = -ENODEV;
- goto out;
- }
-
- if (dev->type != ARPHRD_IEEE802154) {
- err = -ENODEV;
- goto out_put;
- }
-
- ro->src_addr = haddr;
-
- ro->bound = 1;
- err = 0;
-out_put:
- dev_put(dev);
-out:
- release_sock(sk);
-
- return err;
-}
-
-static int dgram_ioctl(struct sock *sk, int cmd, unsigned long arg)
-{
- switch (cmd) {
- case SIOCOUTQ:
- {
- int amount = sk_wmem_alloc_get(sk);
-
- return put_user(amount, (int __user *)arg);
- }
-
- case SIOCINQ:
- {
- struct sk_buff *skb;
- unsigned long amount;
-
- amount = 0;
- spin_lock_bh(&sk->sk_receive_queue.lock);
- skb = skb_peek(&sk->sk_receive_queue);
- if (skb != NULL) {
- /* We will only return the amount
- * of this packet since that is all
- * that will be read.
- */
- amount = skb->len - ieee802154_hdr_length(skb);
- }
- spin_unlock_bh(&sk->sk_receive_queue.lock);
- return put_user(amount, (int __user *)arg);
- }
- }
-
- return -ENOIOCTLCMD;
-}
-
-/* FIXME: autobind */
-static int dgram_connect(struct sock *sk, struct sockaddr *uaddr,
- int len)
-{
- struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
- struct dgram_sock *ro = dgram_sk(sk);
- int err = 0;
-
- if (len < sizeof(*addr))
- return -EINVAL;
-
- if (addr->family != AF_IEEE802154)
- return -EINVAL;
-
- lock_sock(sk);
-
- if (!ro->bound) {
- err = -ENETUNREACH;
- goto out;
- }
-
- ieee802154_addr_from_sa(&ro->dst_addr, &addr->addr);
- ro->connected = 1;
-
-out:
- release_sock(sk);
- return err;
-}
-
-static int dgram_disconnect(struct sock *sk, int flags)
-{
- struct dgram_sock *ro = dgram_sk(sk);
-
- lock_sock(sk);
- ro->connected = 0;
- release_sock(sk);
-
- return 0;
-}
-
-static int dgram_sendmsg(struct kiocb *iocb, struct sock *sk,
- struct msghdr *msg, size_t size)
-{
- struct net_device *dev;
- unsigned int mtu;
- struct sk_buff *skb;
- struct ieee802154_mac_cb *cb;
- struct dgram_sock *ro = dgram_sk(sk);
- struct ieee802154_addr dst_addr;
- int hlen, tlen;
- int err;
-
- if (msg->msg_flags & MSG_OOB) {
- pr_debug("msg->msg_flags = 0x%x\n", msg->msg_flags);
- return -EOPNOTSUPP;
- }
-
- if (!ro->connected && !msg->msg_name)
- return -EDESTADDRREQ;
- else if (ro->connected && msg->msg_name)
- return -EISCONN;
-
- if (!ro->bound)
- dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
- else
- dev = ieee802154_get_dev(sock_net(sk), &ro->src_addr);
-
- if (!dev) {
- pr_debug("no dev\n");
- err = -ENXIO;
- goto out;
- }
- mtu = dev->mtu;
- pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
-
- if (size > mtu) {
- pr_debug("size = %Zu, mtu = %u\n", size, mtu);
- err = -EMSGSIZE;
- goto out_dev;
- }
-
- hlen = LL_RESERVED_SPACE(dev);
- tlen = dev->needed_tailroom;
- skb = sock_alloc_send_skb(sk, hlen + tlen + size,
- msg->msg_flags & MSG_DONTWAIT,
- &err);
- if (!skb)
- goto out_dev;
-
- skb_reserve(skb, hlen);
-
- skb_reset_network_header(skb);
-
- cb = mac_cb_init(skb);
- cb->type = IEEE802154_FC_TYPE_DATA;
- cb->ackreq = ro->want_ack;
-
- if (msg->msg_name) {
- DECLARE_SOCKADDR(struct sockaddr_ieee802154*,
- daddr, msg->msg_name);
-
- ieee802154_addr_from_sa(&dst_addr, &daddr->addr);
- } else {
- dst_addr = ro->dst_addr;
- }
-
- cb->secen = ro->secen;
- cb->secen_override = ro->secen_override;
- cb->seclevel = ro->seclevel;
- cb->seclevel_override = ro->seclevel_override;
-
- err = dev_hard_header(skb, dev, ETH_P_IEEE802154, &dst_addr,
- ro->bound ? &ro->src_addr : NULL, size);
- if (err < 0)
- goto out_skb;
-
- err = memcpy_from_msg(skb_put(skb, size), msg, size);
- if (err < 0)
- goto out_skb;
-
- skb->dev = dev;
- skb->sk = sk;
- skb->protocol = htons(ETH_P_IEEE802154);
-
- dev_put(dev);
-
- err = dev_queue_xmit(skb);
- if (err > 0)
- err = net_xmit_errno(err);
-
- return err ?: size;
-
-out_skb:
- kfree_skb(skb);
-out_dev:
- dev_put(dev);
-out:
- return err;
-}
-
-static int dgram_recvmsg(struct kiocb *iocb, struct sock *sk,
- struct msghdr *msg, size_t len, int noblock,
- int flags, int *addr_len)
-{
- size_t copied = 0;
- int err = -EOPNOTSUPP;
- struct sk_buff *skb;
- DECLARE_SOCKADDR(struct sockaddr_ieee802154 *, saddr, msg->msg_name);
-
- skb = skb_recv_datagram(sk, flags, noblock, &err);
- if (!skb)
- goto out;
-
- copied = skb->len;
- if (len < copied) {
- msg->msg_flags |= MSG_TRUNC;
- copied = len;
- }
-
- /* FIXME: skip headers if necessary ?! */
- err = skb_copy_datagram_msg(skb, 0, msg, copied);
- if (err)
- goto done;
-
- sock_recv_ts_and_drops(msg, sk, skb);
-
- if (saddr) {
- saddr->family = AF_IEEE802154;
- ieee802154_addr_to_sa(&saddr->addr, &mac_cb(skb)->source);
- *addr_len = sizeof(*saddr);
- }
-
- if (flags & MSG_TRUNC)
- copied = skb->len;
-done:
- skb_free_datagram(sk, skb);
-out:
- if (err)
- return err;
- return copied;
-}
-
-static int dgram_rcv_skb(struct sock *sk, struct sk_buff *skb)
-{
- skb = skb_share_check(skb, GFP_ATOMIC);
- if (!skb)
- return NET_RX_DROP;
-
- if (sock_queue_rcv_skb(sk, skb) < 0) {
- kfree_skb(skb);
- return NET_RX_DROP;
- }
-
- return NET_RX_SUCCESS;
-}
-
-static inline bool
-ieee802154_match_sock(__le64 hw_addr, __le16 pan_id, __le16 short_addr,
- struct dgram_sock *ro)
-{
- if (!ro->bound)
- return true;
-
- if (ro->src_addr.mode == IEEE802154_ADDR_LONG &&
- hw_addr == ro->src_addr.extended_addr)
- return true;
-
- if (ro->src_addr.mode == IEEE802154_ADDR_SHORT &&
- pan_id == ro->src_addr.pan_id &&
- short_addr == ro->src_addr.short_addr)
- return true;
-
- return false;
-}
-
-int ieee802154_dgram_deliver(struct net_device *dev, struct sk_buff *skb)
-{
- struct sock *sk, *prev = NULL;
- int ret = NET_RX_SUCCESS;
- __le16 pan_id, short_addr;
- __le64 hw_addr;
-
- /* Data frame processing */
- BUG_ON(dev->type != ARPHRD_IEEE802154);
-
- pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
- short_addr = ieee802154_mlme_ops(dev)->get_short_addr(dev);
- hw_addr = ieee802154_devaddr_from_raw(dev->dev_addr);
-
- read_lock(&dgram_lock);
- sk_for_each(sk, &dgram_head) {
- if (ieee802154_match_sock(hw_addr, pan_id, short_addr,
- dgram_sk(sk))) {
- if (prev) {
- struct sk_buff *clone;
-
- clone = skb_clone(skb, GFP_ATOMIC);
- if (clone)
- dgram_rcv_skb(prev, clone);
- }
-
- prev = sk;
- }
- }
-
- if (prev) {
- dgram_rcv_skb(prev, skb);
- } else {
- kfree_skb(skb);
- ret = NET_RX_DROP;
- }
- read_unlock(&dgram_lock);
-
- return ret;
-}
-
-static int dgram_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen)
-{
- struct dgram_sock *ro = dgram_sk(sk);
-
- int val, len;
-
- if (level != SOL_IEEE802154)
- return -EOPNOTSUPP;
-
- if (get_user(len, optlen))
- return -EFAULT;
-
- len = min_t(unsigned int, len, sizeof(int));
-
- switch (optname) {
- case WPAN_WANTACK:
- val = ro->want_ack;
- break;
- case WPAN_SECURITY:
- if (!ro->secen_override)
- val = WPAN_SECURITY_DEFAULT;
- else if (ro->secen)
- val = WPAN_SECURITY_ON;
- else
- val = WPAN_SECURITY_OFF;
- break;
- case WPAN_SECURITY_LEVEL:
- if (!ro->seclevel_override)
- val = WPAN_SECURITY_LEVEL_DEFAULT;
- else
- val = ro->seclevel;
- break;
- default:
- return -ENOPROTOOPT;
- }
-
- if (put_user(len, optlen))
- return -EFAULT;
- if (copy_to_user(optval, &val, len))
- return -EFAULT;
- return 0;
-}
-
-static int dgram_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen)
-{
- struct dgram_sock *ro = dgram_sk(sk);
- struct net *net = sock_net(sk);
- int val;
- int err = 0;
-
- if (optlen < sizeof(int))
- return -EINVAL;
-
- if (get_user(val, (int __user *)optval))
- return -EFAULT;
-
- lock_sock(sk);
-
- switch (optname) {
- case WPAN_WANTACK:
- ro->want_ack = !!val;
- break;
- case WPAN_SECURITY:
- if (!ns_capable(net->user_ns, CAP_NET_ADMIN) &&
- !ns_capable(net->user_ns, CAP_NET_RAW)) {
- err = -EPERM;
- break;
- }
-
- switch (val) {
- case WPAN_SECURITY_DEFAULT:
- ro->secen_override = 0;
- break;
- case WPAN_SECURITY_ON:
- ro->secen_override = 1;
- ro->secen = 1;
- break;
- case WPAN_SECURITY_OFF:
- ro->secen_override = 1;
- ro->secen = 0;
- break;
- default:
- err = -EINVAL;
- break;
- }
- break;
- case WPAN_SECURITY_LEVEL:
- if (!ns_capable(net->user_ns, CAP_NET_ADMIN) &&
- !ns_capable(net->user_ns, CAP_NET_RAW)) {
- err = -EPERM;
- break;
- }
-
- if (val < WPAN_SECURITY_LEVEL_DEFAULT ||
- val > IEEE802154_SCF_SECLEVEL_ENC_MIC128) {
- err = -EINVAL;
- } else if (val == WPAN_SECURITY_LEVEL_DEFAULT) {
- ro->seclevel_override = 0;
- } else {
- ro->seclevel_override = 1;
- ro->seclevel = val;
- }
- break;
- default:
- err = -ENOPROTOOPT;
- break;
- }
-
- release_sock(sk);
- return err;
-}
-
-struct proto ieee802154_dgram_prot = {
- .name = "IEEE-802.15.4-MAC",
- .owner = THIS_MODULE,
- .obj_size = sizeof(struct dgram_sock),
- .init = dgram_init,
- .close = dgram_close,
- .bind = dgram_bind,
- .sendmsg = dgram_sendmsg,
- .recvmsg = dgram_recvmsg,
- .hash = dgram_hash,
- .unhash = dgram_unhash,
- .connect = dgram_connect,
- .disconnect = dgram_disconnect,
- .ioctl = dgram_ioctl,
- .getsockopt = dgram_getsockopt,
- .setsockopt = dgram_setsockopt,
-};
-
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index fa1464762d0d..c8133c07ceee 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -63,13 +63,9 @@ int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group)
struct nlmsghdr *nlh = nlmsg_hdr(msg);
void *hdr = genlmsg_data(nlmsg_data(nlh));
- if (genlmsg_end(msg, hdr) < 0)
- goto out;
+ genlmsg_end(msg, hdr);
return genlmsg_multicast(&nl802154_family, msg, 0, group, GFP_ATOMIC);
-out:
- nlmsg_free(msg);
- return -ENOBUFS;
}
struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
@@ -96,13 +92,9 @@ int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info)
struct nlmsghdr *nlh = nlmsg_hdr(msg);
void *hdr = genlmsg_data(nlmsg_data(nlh));
- if (genlmsg_end(msg, hdr) < 0)
- goto out;
+ genlmsg_end(msg, hdr);
return genlmsg_reply(msg, info);
-out:
- nlmsg_free(msg);
- return -ENOBUFS;
}
static const struct genl_ops ieee8021154_ops[] = {
diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c
index cd919493c976..9105265920fe 100644
--- a/net/ieee802154/nl-mac.c
+++ b/net/ieee802154/nl-mac.c
@@ -121,7 +121,7 @@ static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid,
params.transmit_power) ||
nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, params.lbt) ||
nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE,
- params.cca_mode) ||
+ params.cca.mode) ||
nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL,
params.cca_ed_level) ||
nla_put_u8(msg, IEEE802154_ATTR_CSMA_RETRIES,
@@ -136,7 +136,8 @@ static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid,
}
wpan_phy_put(phy);
- return genlmsg_end(msg, hdr);
+ genlmsg_end(msg, hdr);
+ return 0;
nla_put_failure:
wpan_phy_put(phy);
@@ -516,7 +517,7 @@ int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info)
params.lbt = nla_get_u8(info->attrs[IEEE802154_ATTR_LBT_ENABLED]);
if (info->attrs[IEEE802154_ATTR_CCA_MODE])
- params.cca_mode = nla_get_u8(info->attrs[IEEE802154_ATTR_CCA_MODE]);
+ params.cca.mode = nla_get_u8(info->attrs[IEEE802154_ATTR_CCA_MODE]);
if (info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL])
params.cca_ed_level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]);
diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c
index 7baf98b14611..1b9d25f6e898 100644
--- a/net/ieee802154/nl-phy.c
+++ b/net/ieee802154/nl-phy.c
@@ -65,7 +65,8 @@ static int ieee802154_nl_fill_phy(struct sk_buff *msg, u32 portid,
goto nla_put_failure;
mutex_unlock(&phy->pib_lock);
kfree(buf);
- return genlmsg_end(msg, hdr);
+ genlmsg_end(msg, hdr);
+ return 0;
nla_put_failure:
mutex_unlock(&phy->pib_lock);
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index 889647744697..a4daf91b8d0a 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -209,7 +209,8 @@ static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
[NL802154_ATTR_TX_POWER] = { .type = NLA_S8, },
- [NL802154_ATTR_CCA_MODE] = { .type = NLA_U8, },
+ [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, },
+ [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, },
[NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, },
@@ -290,16 +291,23 @@ static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
goto nla_put_failure;
/* cca mode */
- if (nla_put_u8(msg, NL802154_ATTR_CCA_MODE,
- rdev->wpan_phy.cca_mode))
+ if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE,
+ rdev->wpan_phy.cca.mode))
goto nla_put_failure;
+ if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) {
+ if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT,
+ rdev->wpan_phy.cca.opt))
+ goto nla_put_failure;
+ }
+
if (nla_put_s8(msg, NL802154_ATTR_TX_POWER,
rdev->wpan_phy.transmit_power))
goto nla_put_failure;
finish:
- return genlmsg_end(msg, hdr);
+ genlmsg_end(msg, hdr);
+ return 0;
nla_put_failure:
genlmsg_cancel(msg, hdr);
@@ -482,7 +490,8 @@ nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt))
goto nla_put_failure;
- return genlmsg_end(msg, hdr);
+ genlmsg_end(msg, hdr);
+ return 0;
nla_put_failure:
genlmsg_cancel(msg, hdr);
@@ -622,6 +631,31 @@ static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
return rdev_set_channel(rdev, page, channel);
}
+static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg802154_registered_device *rdev = info->user_ptr[0];
+ struct wpan_phy_cca cca;
+
+ if (!info->attrs[NL802154_ATTR_CCA_MODE])
+ return -EINVAL;
+
+ cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
+ /* checking 802.15.4 constraints */
+ if (cca.mode < NL802154_CCA_ENERGY || cca.mode > NL802154_CCA_ATTR_MAX)
+ return -EINVAL;
+
+ if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
+ if (!info->attrs[NL802154_ATTR_CCA_OPT])
+ return -EINVAL;
+
+ cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
+ if (cca.opt > NL802154_CCA_OPT_ATTR_MAX)
+ return -EINVAL;
+ }
+
+ return rdev_set_cca_mode(rdev, &cca);
+}
+
static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
{
struct cfg802154_registered_device *rdev = info->user_ptr[0];
@@ -895,6 +929,14 @@ static const struct genl_ops nl802154_ops[] = {
NL802154_FLAG_NEED_RTNL,
},
{
+ .cmd = NL802154_CMD_SET_CCA_MODE,
+ .doit = nl802154_set_cca_mode,
+ .policy = nl802154_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
+ NL802154_FLAG_NEED_RTNL,
+ },
+ {
.cmd = NL802154_CMD_SET_PAN_ID,
.doit = nl802154_set_pan_id,
.policy = nl802154_policy,
diff --git a/net/ieee802154/raw.c b/net/ieee802154/raw.c
deleted file mode 100644
index 1674b115c891..000000000000
--- a/net/ieee802154/raw.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/*
- * Raw IEEE 802.15.4 sockets
- *
- * Copyright 2007, 2008 Siemens AG
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Written by:
- * Sergey Lapin <slapin@ossfans.org>
- * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
- */
-
-#include <linux/net.h>
-#include <linux/module.h>
-#include <linux/if_arp.h>
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <net/sock.h>
-#include <net/af_ieee802154.h>
-#include <net/ieee802154_netdev.h>
-
-#include "af802154.h"
-
-static HLIST_HEAD(raw_head);
-static DEFINE_RWLOCK(raw_lock);
-
-static void raw_hash(struct sock *sk)
-{
- write_lock_bh(&raw_lock);
- sk_add_node(sk, &raw_head);
- sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
- write_unlock_bh(&raw_lock);
-}
-
-static void raw_unhash(struct sock *sk)
-{
- write_lock_bh(&raw_lock);
- if (sk_del_node_init(sk))
- sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
- write_unlock_bh(&raw_lock);
-}
-
-static void raw_close(struct sock *sk, long timeout)
-{
- sk_common_release(sk);
-}
-
-static int raw_bind(struct sock *sk, struct sockaddr *_uaddr, int len)
-{
- struct ieee802154_addr addr;
- struct sockaddr_ieee802154 *uaddr = (struct sockaddr_ieee802154 *)_uaddr;
- int err = 0;
- struct net_device *dev = NULL;
-
- if (len < sizeof(*uaddr))
- return -EINVAL;
-
- uaddr = (struct sockaddr_ieee802154 *)_uaddr;
- if (uaddr->family != AF_IEEE802154)
- return -EINVAL;
-
- lock_sock(sk);
-
- ieee802154_addr_from_sa(&addr, &uaddr->addr);
- dev = ieee802154_get_dev(sock_net(sk), &addr);
- if (!dev) {
- err = -ENODEV;
- goto out;
- }
-
- if (dev->type != ARPHRD_IEEE802154) {
- err = -ENODEV;
- goto out_put;
- }
-
- sk->sk_bound_dev_if = dev->ifindex;
- sk_dst_reset(sk);
-
-out_put:
- dev_put(dev);
-out:
- release_sock(sk);
-
- return err;
-}
-
-static int raw_connect(struct sock *sk, struct sockaddr *uaddr,
- int addr_len)
-{
- return -ENOTSUPP;
-}
-
-static int raw_disconnect(struct sock *sk, int flags)
-{
- return 0;
-}
-
-static int raw_sendmsg(struct kiocb *iocb, struct sock *sk,
- struct msghdr *msg, size_t size)
-{
- struct net_device *dev;
- unsigned int mtu;
- struct sk_buff *skb;
- int hlen, tlen;
- int err;
-
- if (msg->msg_flags & MSG_OOB) {
- pr_debug("msg->msg_flags = 0x%x\n", msg->msg_flags);
- return -EOPNOTSUPP;
- }
-
- lock_sock(sk);
- if (!sk->sk_bound_dev_if)
- dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
- else
- dev = dev_get_by_index(sock_net(sk), sk->sk_bound_dev_if);
- release_sock(sk);
-
- if (!dev) {
- pr_debug("no dev\n");
- err = -ENXIO;
- goto out;
- }
-
- mtu = dev->mtu;
- pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
-
- if (size > mtu) {
- pr_debug("size = %Zu, mtu = %u\n", size, mtu);
- err = -EINVAL;
- goto out_dev;
- }
-
- hlen = LL_RESERVED_SPACE(dev);
- tlen = dev->needed_tailroom;
- skb = sock_alloc_send_skb(sk, hlen + tlen + size,
- msg->msg_flags & MSG_DONTWAIT, &err);
- if (!skb)
- goto out_dev;
-
- skb_reserve(skb, hlen);
-
- skb_reset_mac_header(skb);
- skb_reset_network_header(skb);
-
- err = memcpy_from_msg(skb_put(skb, size), msg, size);
- if (err < 0)
- goto out_skb;
-
- skb->dev = dev;
- skb->sk = sk;
- skb->protocol = htons(ETH_P_IEEE802154);
-
- dev_put(dev);
-
- err = dev_queue_xmit(skb);
- if (err > 0)
- err = net_xmit_errno(err);
-
- return err ?: size;
-
-out_skb:
- kfree_skb(skb);
-out_dev:
- dev_put(dev);
-out:
- return err;
-}
-
-static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
- size_t len, int noblock, int flags, int *addr_len)
-{
- size_t copied = 0;
- int err = -EOPNOTSUPP;
- struct sk_buff *skb;
-
- skb = skb_recv_datagram(sk, flags, noblock, &err);
- if (!skb)
- goto out;
-
- copied = skb->len;
- if (len < copied) {
- msg->msg_flags |= MSG_TRUNC;
- copied = len;
- }
-
- err = skb_copy_datagram_msg(skb, 0, msg, copied);
- if (err)
- goto done;
-
- sock_recv_ts_and_drops(msg, sk, skb);
-
- if (flags & MSG_TRUNC)
- copied = skb->len;
-done:
- skb_free_datagram(sk, skb);
-out:
- if (err)
- return err;
- return copied;
-}
-
-static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
-{
- skb = skb_share_check(skb, GFP_ATOMIC);
- if (!skb)
- return NET_RX_DROP;
-
- if (sock_queue_rcv_skb(sk, skb) < 0) {
- kfree_skb(skb);
- return NET_RX_DROP;
- }
-
- return NET_RX_SUCCESS;
-}
-
-void ieee802154_raw_deliver(struct net_device *dev, struct sk_buff *skb)
-{
- struct sock *sk;
-
- read_lock(&raw_lock);
- sk_for_each(sk, &raw_head) {
- bh_lock_sock(sk);
- if (!sk->sk_bound_dev_if ||
- sk->sk_bound_dev_if == dev->ifindex) {
- struct sk_buff *clone;
-
- clone = skb_clone(skb, GFP_ATOMIC);
- if (clone)
- raw_rcv_skb(sk, clone);
- }
- bh_unlock_sock(sk);
- }
- read_unlock(&raw_lock);
-}
-
-static int raw_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen)
-{
- return -EOPNOTSUPP;
-}
-
-static int raw_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen)
-{
- return -EOPNOTSUPP;
-}
-
-struct proto ieee802154_raw_prot = {
- .name = "IEEE-802.15.4-RAW",
- .owner = THIS_MODULE,
- .obj_size = sizeof(struct sock),
- .close = raw_close,
- .bind = raw_bind,
- .sendmsg = raw_sendmsg,
- .recvmsg = raw_recvmsg,
- .hash = raw_hash,
- .unhash = raw_unhash,
- .connect = raw_connect,
- .disconnect = raw_disconnect,
- .getsockopt = raw_getsockopt,
- .setsockopt = raw_setsockopt,
-};
diff --git a/net/ieee802154/rdev-ops.h b/net/ieee802154/rdev-ops.h
index aff54fbd9264..7c46732fad2b 100644
--- a/net/ieee802154/rdev-ops.h
+++ b/net/ieee802154/rdev-ops.h
@@ -42,6 +42,13 @@ rdev_set_channel(struct cfg802154_registered_device *rdev, u8 page, u8 channel)
}
static inline int
+rdev_set_cca_mode(struct cfg802154_registered_device *rdev,
+ const struct wpan_phy_cca *cca)
+{
+ return rdev->ops->set_cca_mode(&rdev->wpan_phy, cca);
+}
+
+static inline int
rdev_set_pan_id(struct cfg802154_registered_device *rdev,
struct wpan_dev *wpan_dev, __le16 pan_id)
{
diff --git a/net/ieee802154/reassembly.h b/net/ieee802154/reassembly.h
deleted file mode 100644
index 836b16fa001f..000000000000
--- a/net/ieee802154/reassembly.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#ifndef __IEEE802154_6LOWPAN_REASSEMBLY_H__
-#define __IEEE802154_6LOWPAN_REASSEMBLY_H__
-
-#include <net/inet_frag.h>
-
-struct lowpan_create_arg {
- u16 tag;
- u16 d_size;
- const struct ieee802154_addr *src;
- const struct ieee802154_addr *dst;
-};
-
-/* Equivalent of ipv4 struct ip
- */
-struct lowpan_frag_queue {
- struct inet_frag_queue q;
-
- u16 tag;
- u16 d_size;
- struct ieee802154_addr saddr;
- struct ieee802154_addr daddr;
-};
-
-static inline u32 ieee802154_addr_hash(const struct ieee802154_addr *a)
-{
- switch (a->mode) {
- case IEEE802154_ADDR_LONG:
- return (((__force u64)a->extended_addr) >> 32) ^
- (((__force u64)a->extended_addr) & 0xffffffff);
- case IEEE802154_ADDR_SHORT:
- return (__force u32)(a->short_addr);
- default:
- return 0;
- }
-}
-
-int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type);
-void lowpan_net_frag_exit(void);
-int lowpan_net_frag_init(void);
-
-#endif /* __IEEE802154_6LOWPAN_REASSEMBLY_H__ */
diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
new file mode 100644
index 000000000000..2878d8ca6d3b
--- /dev/null
+++ b/net/ieee802154/socket.c
@@ -0,0 +1,1125 @@
+/*
+ * IEEE802154.4 socket interface
+ *
+ * Copyright 2007, 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Written by:
+ * Sergey Lapin <slapin@ossfans.org>
+ * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
+ */
+
+#include <linux/net.h>
+#include <linux/capability.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/if.h>
+#include <linux/termios.h> /* For TIOCOUTQ/INQ */
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <net/datalink.h>
+#include <net/psnap.h>
+#include <net/sock.h>
+#include <net/tcp_states.h>
+#include <net/route.h>
+
+#include <net/af_ieee802154.h>
+#include <net/ieee802154_netdev.h>
+
+/* Utility function for families */
+static struct net_device*
+ieee802154_get_dev(struct net *net, const struct ieee802154_addr *addr)
+{
+ struct net_device *dev = NULL;
+ struct net_device *tmp;
+ __le16 pan_id, short_addr;
+ u8 hwaddr[IEEE802154_ADDR_LEN];
+
+ switch (addr->mode) {
+ case IEEE802154_ADDR_LONG:
+ ieee802154_devaddr_to_raw(hwaddr, addr->extended_addr);
+ rcu_read_lock();
+ dev = dev_getbyhwaddr_rcu(net, ARPHRD_IEEE802154, hwaddr);
+ if (dev)
+ dev_hold(dev);
+ rcu_read_unlock();
+ break;
+ case IEEE802154_ADDR_SHORT:
+ if (addr->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST) ||
+ addr->short_addr == cpu_to_le16(IEEE802154_ADDR_UNDEF) ||
+ addr->short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST))
+ break;
+
+ rtnl_lock();
+
+ for_each_netdev(net, tmp) {
+ if (tmp->type != ARPHRD_IEEE802154)
+ continue;
+
+ pan_id = ieee802154_mlme_ops(tmp)->get_pan_id(tmp);
+ short_addr =
+ ieee802154_mlme_ops(tmp)->get_short_addr(tmp);
+
+ if (pan_id == addr->pan_id &&
+ short_addr == addr->short_addr) {
+ dev = tmp;
+ dev_hold(dev);
+ break;
+ }
+ }
+
+ rtnl_unlock();
+ break;
+ default:
+ pr_warn("Unsupported ieee802154 address type: %d\n",
+ addr->mode);
+ break;
+ }
+
+ return dev;
+}
+
+static int ieee802154_sock_release(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+
+ if (sk) {
+ sock->sk = NULL;
+ sk->sk_prot->close(sk, 0);
+ }
+ return 0;
+}
+
+static int ieee802154_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t len)
+{
+ struct sock *sk = sock->sk;
+
+ return sk->sk_prot->sendmsg(iocb, sk, msg, len);
+}
+
+static int ieee802154_sock_bind(struct socket *sock, struct sockaddr *uaddr,
+ int addr_len)
+{
+ struct sock *sk = sock->sk;
+
+ if (sk->sk_prot->bind)
+ return sk->sk_prot->bind(sk, uaddr, addr_len);
+
+ return sock_no_bind(sock, uaddr, addr_len);
+}
+
+static int ieee802154_sock_connect(struct socket *sock, struct sockaddr *uaddr,
+ int addr_len, int flags)
+{
+ struct sock *sk = sock->sk;
+
+ if (addr_len < sizeof(uaddr->sa_family))
+ return -EINVAL;
+
+ if (uaddr->sa_family == AF_UNSPEC)
+ return sk->sk_prot->disconnect(sk, flags);
+
+ return sk->sk_prot->connect(sk, uaddr, addr_len);
+}
+
+static int ieee802154_dev_ioctl(struct sock *sk, struct ifreq __user *arg,
+ unsigned int cmd)
+{
+ struct ifreq ifr;
+ int ret = -ENOIOCTLCMD;
+ struct net_device *dev;
+
+ if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
+ return -EFAULT;
+
+ ifr.ifr_name[IFNAMSIZ-1] = 0;
+
+ dev_load(sock_net(sk), ifr.ifr_name);
+ dev = dev_get_by_name(sock_net(sk), ifr.ifr_name);
+
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->type == ARPHRD_IEEE802154 && dev->netdev_ops->ndo_do_ioctl)
+ ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd);
+
+ if (!ret && copy_to_user(arg, &ifr, sizeof(struct ifreq)))
+ ret = -EFAULT;
+ dev_put(dev);
+
+ return ret;
+}
+
+static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd,
+ unsigned long arg)
+{
+ struct sock *sk = sock->sk;
+
+ switch (cmd) {
+ case SIOCGSTAMP:
+ return sock_get_timestamp(sk, (struct timeval __user *)arg);
+ case SIOCGSTAMPNS:
+ return sock_get_timestampns(sk, (struct timespec __user *)arg);
+ case SIOCGIFADDR:
+ case SIOCSIFADDR:
+ return ieee802154_dev_ioctl(sk, (struct ifreq __user *)arg,
+ cmd);
+ default:
+ if (!sk->sk_prot->ioctl)
+ return -ENOIOCTLCMD;
+ return sk->sk_prot->ioctl(sk, cmd, arg);
+ }
+}
+
+/* RAW Sockets (802.15.4 created in userspace) */
+static HLIST_HEAD(raw_head);
+static DEFINE_RWLOCK(raw_lock);
+
+static void raw_hash(struct sock *sk)
+{
+ write_lock_bh(&raw_lock);
+ sk_add_node(sk, &raw_head);
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+ write_unlock_bh(&raw_lock);
+}
+
+static void raw_unhash(struct sock *sk)
+{
+ write_lock_bh(&raw_lock);
+ if (sk_del_node_init(sk))
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
+ write_unlock_bh(&raw_lock);
+}
+
+static void raw_close(struct sock *sk, long timeout)
+{
+ sk_common_release(sk);
+}
+
+static int raw_bind(struct sock *sk, struct sockaddr *_uaddr, int len)
+{
+ struct ieee802154_addr addr;
+ struct sockaddr_ieee802154 *uaddr = (struct sockaddr_ieee802154 *)_uaddr;
+ int err = 0;
+ struct net_device *dev = NULL;
+
+ if (len < sizeof(*uaddr))
+ return -EINVAL;
+
+ uaddr = (struct sockaddr_ieee802154 *)_uaddr;
+ if (uaddr->family != AF_IEEE802154)
+ return -EINVAL;
+
+ lock_sock(sk);
+
+ ieee802154_addr_from_sa(&addr, &uaddr->addr);
+ dev = ieee802154_get_dev(sock_net(sk), &addr);
+ if (!dev) {
+ err = -ENODEV;
+ goto out;
+ }
+
+ if (dev->type != ARPHRD_IEEE802154) {
+ err = -ENODEV;
+ goto out_put;
+ }
+
+ sk->sk_bound_dev_if = dev->ifindex;
+ sk_dst_reset(sk);
+
+out_put:
+ dev_put(dev);
+out:
+ release_sock(sk);
+
+ return err;
+}
+
+static int raw_connect(struct sock *sk, struct sockaddr *uaddr,
+ int addr_len)
+{
+ return -ENOTSUPP;
+}
+
+static int raw_disconnect(struct sock *sk, int flags)
+{
+ return 0;
+}
+
+static int raw_sendmsg(struct kiocb *iocb, struct sock *sk,
+ struct msghdr *msg, size_t size)
+{
+ struct net_device *dev;
+ unsigned int mtu;
+ struct sk_buff *skb;
+ int hlen, tlen;
+ int err;
+
+ if (msg->msg_flags & MSG_OOB) {
+ pr_debug("msg->msg_flags = 0x%x\n", msg->msg_flags);
+ return -EOPNOTSUPP;
+ }
+
+ lock_sock(sk);
+ if (!sk->sk_bound_dev_if)
+ dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
+ else
+ dev = dev_get_by_index(sock_net(sk), sk->sk_bound_dev_if);
+ release_sock(sk);
+
+ if (!dev) {
+ pr_debug("no dev\n");
+ err = -ENXIO;
+ goto out;
+ }
+
+ mtu = dev->mtu;
+ pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
+
+ if (size > mtu) {
+ pr_debug("size = %Zu, mtu = %u\n", size, mtu);
+ err = -EINVAL;
+ goto out_dev;
+ }
+
+ hlen = LL_RESERVED_SPACE(dev);
+ tlen = dev->needed_tailroom;
+ skb = sock_alloc_send_skb(sk, hlen + tlen + size,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+ if (!skb)
+ goto out_dev;
+
+ skb_reserve(skb, hlen);
+
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+
+ err = memcpy_from_msg(skb_put(skb, size), msg, size);
+ if (err < 0)
+ goto out_skb;
+
+ skb->dev = dev;
+ skb->sk = sk;
+ skb->protocol = htons(ETH_P_IEEE802154);
+
+ dev_put(dev);
+
+ err = dev_queue_xmit(skb);
+ if (err > 0)
+ err = net_xmit_errno(err);
+
+ return err ?: size;
+
+out_skb:
+ kfree_skb(skb);
+out_dev:
+ dev_put(dev);
+out:
+ return err;
+}
+
+static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+ size_t len, int noblock, int flags, int *addr_len)
+{
+ size_t copied = 0;
+ int err = -EOPNOTSUPP;
+ struct sk_buff *skb;
+
+ skb = skb_recv_datagram(sk, flags, noblock, &err);
+ if (!skb)
+ goto out;
+
+ copied = skb->len;
+ if (len < copied) {
+ msg->msg_flags |= MSG_TRUNC;
+ copied = len;
+ }
+
+ err = skb_copy_datagram_msg(skb, 0, msg, copied);
+ if (err)
+ goto done;
+
+ sock_recv_ts_and_drops(msg, sk, skb);
+
+ if (flags & MSG_TRUNC)
+ copied = skb->len;
+done:
+ skb_free_datagram(sk, skb);
+out:
+ if (err)
+ return err;
+ return copied;
+}
+
+static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
+{
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!skb)
+ return NET_RX_DROP;
+
+ if (sock_queue_rcv_skb(sk, skb) < 0) {
+ kfree_skb(skb);
+ return NET_RX_DROP;
+ }
+
+ return NET_RX_SUCCESS;
+}
+
+static void ieee802154_raw_deliver(struct net_device *dev, struct sk_buff *skb)
+{
+ struct sock *sk;
+
+ read_lock(&raw_lock);
+ sk_for_each(sk, &raw_head) {
+ bh_lock_sock(sk);
+ if (!sk->sk_bound_dev_if ||
+ sk->sk_bound_dev_if == dev->ifindex) {
+ struct sk_buff *clone;
+
+ clone = skb_clone(skb, GFP_ATOMIC);
+ if (clone)
+ raw_rcv_skb(sk, clone);
+ }
+ bh_unlock_sock(sk);
+ }
+ read_unlock(&raw_lock);
+}
+
+static int raw_getsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int __user *optlen)
+{
+ return -EOPNOTSUPP;
+}
+
+static int raw_setsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, unsigned int optlen)
+{
+ return -EOPNOTSUPP;
+}
+
+static struct proto ieee802154_raw_prot = {
+ .name = "IEEE-802.15.4-RAW",
+ .owner = THIS_MODULE,
+ .obj_size = sizeof(struct sock),
+ .close = raw_close,
+ .bind = raw_bind,
+ .sendmsg = raw_sendmsg,
+ .recvmsg = raw_recvmsg,
+ .hash = raw_hash,
+ .unhash = raw_unhash,
+ .connect = raw_connect,
+ .disconnect = raw_disconnect,
+ .getsockopt = raw_getsockopt,
+ .setsockopt = raw_setsockopt,
+};
+
+static const struct proto_ops ieee802154_raw_ops = {
+ .family = PF_IEEE802154,
+ .owner = THIS_MODULE,
+ .release = ieee802154_sock_release,
+ .bind = ieee802154_sock_bind,
+ .connect = ieee802154_sock_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = sock_no_accept,
+ .getname = sock_no_getname,
+ .poll = datagram_poll,
+ .ioctl = ieee802154_sock_ioctl,
+ .listen = sock_no_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = sock_common_setsockopt,
+ .getsockopt = sock_common_getsockopt,
+ .sendmsg = ieee802154_sock_sendmsg,
+ .recvmsg = sock_common_recvmsg,
+ .mmap = sock_no_mmap,
+ .sendpage = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_sock_common_setsockopt,
+ .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
+};
+
+/* DGRAM Sockets (802.15.4 dataframes) */
+static HLIST_HEAD(dgram_head);
+static DEFINE_RWLOCK(dgram_lock);
+
+struct dgram_sock {
+ struct sock sk;
+
+ struct ieee802154_addr src_addr;
+ struct ieee802154_addr dst_addr;
+
+ unsigned int bound:1;
+ unsigned int connected:1;
+ unsigned int want_ack:1;
+ unsigned int secen:1;
+ unsigned int secen_override:1;
+ unsigned int seclevel:3;
+ unsigned int seclevel_override:1;
+};
+
+static inline struct dgram_sock *dgram_sk(const struct sock *sk)
+{
+ return container_of(sk, struct dgram_sock, sk);
+}
+
+static void dgram_hash(struct sock *sk)
+{
+ write_lock_bh(&dgram_lock);
+ sk_add_node(sk, &dgram_head);
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+ write_unlock_bh(&dgram_lock);
+}
+
+static void dgram_unhash(struct sock *sk)
+{
+ write_lock_bh(&dgram_lock);
+ if (sk_del_node_init(sk))
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
+ write_unlock_bh(&dgram_lock);
+}
+
+static int dgram_init(struct sock *sk)
+{
+ struct dgram_sock *ro = dgram_sk(sk);
+
+ ro->want_ack = 1;
+ return 0;
+}
+
+static void dgram_close(struct sock *sk, long timeout)
+{
+ sk_common_release(sk);
+}
+
+static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
+{
+ struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
+ struct ieee802154_addr haddr;
+ struct dgram_sock *ro = dgram_sk(sk);
+ int err = -EINVAL;
+ struct net_device *dev;
+
+ lock_sock(sk);
+
+ ro->bound = 0;
+
+ if (len < sizeof(*addr))
+ goto out;
+
+ if (addr->family != AF_IEEE802154)
+ goto out;
+
+ ieee802154_addr_from_sa(&haddr, &addr->addr);
+ dev = ieee802154_get_dev(sock_net(sk), &haddr);
+ if (!dev) {
+ err = -ENODEV;
+ goto out;
+ }
+
+ if (dev->type != ARPHRD_IEEE802154) {
+ err = -ENODEV;
+ goto out_put;
+ }
+
+ ro->src_addr = haddr;
+
+ ro->bound = 1;
+ err = 0;
+out_put:
+ dev_put(dev);
+out:
+ release_sock(sk);
+
+ return err;
+}
+
+static int dgram_ioctl(struct sock *sk, int cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case SIOCOUTQ:
+ {
+ int amount = sk_wmem_alloc_get(sk);
+
+ return put_user(amount, (int __user *)arg);
+ }
+
+ case SIOCINQ:
+ {
+ struct sk_buff *skb;
+ unsigned long amount;
+
+ amount = 0;
+ spin_lock_bh(&sk->sk_receive_queue.lock);
+ skb = skb_peek(&sk->sk_receive_queue);
+ if (skb) {
+ /* We will only return the amount
+ * of this packet since that is all
+ * that will be read.
+ */
+ amount = skb->len - ieee802154_hdr_length(skb);
+ }
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
+ return put_user(amount, (int __user *)arg);
+ }
+ }
+
+ return -ENOIOCTLCMD;
+}
+
+/* FIXME: autobind */
+static int dgram_connect(struct sock *sk, struct sockaddr *uaddr,
+ int len)
+{
+ struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
+ struct dgram_sock *ro = dgram_sk(sk);
+ int err = 0;
+
+ if (len < sizeof(*addr))
+ return -EINVAL;
+
+ if (addr->family != AF_IEEE802154)
+ return -EINVAL;
+
+ lock_sock(sk);
+
+ if (!ro->bound) {
+ err = -ENETUNREACH;
+ goto out;
+ }
+
+ ieee802154_addr_from_sa(&ro->dst_addr, &addr->addr);
+ ro->connected = 1;
+
+out:
+ release_sock(sk);
+ return err;
+}
+
+static int dgram_disconnect(struct sock *sk, int flags)
+{
+ struct dgram_sock *ro = dgram_sk(sk);
+
+ lock_sock(sk);
+ ro->connected = 0;
+ release_sock(sk);
+
+ return 0;
+}
+
+static int dgram_sendmsg(struct kiocb *iocb, struct sock *sk,
+ struct msghdr *msg, size_t size)
+{
+ struct net_device *dev;
+ unsigned int mtu;
+ struct sk_buff *skb;
+ struct ieee802154_mac_cb *cb;
+ struct dgram_sock *ro = dgram_sk(sk);
+ struct ieee802154_addr dst_addr;
+ int hlen, tlen;
+ int err;
+
+ if (msg->msg_flags & MSG_OOB) {
+ pr_debug("msg->msg_flags = 0x%x\n", msg->msg_flags);
+ return -EOPNOTSUPP;
+ }
+
+ if (!ro->connected && !msg->msg_name)
+ return -EDESTADDRREQ;
+ else if (ro->connected && msg->msg_name)
+ return -EISCONN;
+
+ if (!ro->bound)
+ dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154);
+ else
+ dev = ieee802154_get_dev(sock_net(sk), &ro->src_addr);
+
+ if (!dev) {
+ pr_debug("no dev\n");
+ err = -ENXIO;
+ goto out;
+ }
+ mtu = dev->mtu;
+ pr_debug("name = %s, mtu = %u\n", dev->name, mtu);
+
+ if (size > mtu) {
+ pr_debug("size = %Zu, mtu = %u\n", size, mtu);
+ err = -EMSGSIZE;
+ goto out_dev;
+ }
+
+ hlen = LL_RESERVED_SPACE(dev);
+ tlen = dev->needed_tailroom;
+ skb = sock_alloc_send_skb(sk, hlen + tlen + size,
+ msg->msg_flags & MSG_DONTWAIT,
+ &err);
+ if (!skb)
+ goto out_dev;
+
+ skb_reserve(skb, hlen);
+
+ skb_reset_network_header(skb);
+
+ cb = mac_cb_init(skb);
+ cb->type = IEEE802154_FC_TYPE_DATA;
+ cb->ackreq = ro->want_ack;
+
+ if (msg->msg_name) {
+ DECLARE_SOCKADDR(struct sockaddr_ieee802154*,
+ daddr, msg->msg_name);
+
+ ieee802154_addr_from_sa(&dst_addr, &daddr->addr);
+ } else {
+ dst_addr = ro->dst_addr;
+ }
+
+ cb->secen = ro->secen;
+ cb->secen_override = ro->secen_override;
+ cb->seclevel = ro->seclevel;
+ cb->seclevel_override = ro->seclevel_override;
+
+ err = dev_hard_header(skb, dev, ETH_P_IEEE802154, &dst_addr,
+ ro->bound ? &ro->src_addr : NULL, size);
+ if (err < 0)
+ goto out_skb;
+
+ err = memcpy_from_msg(skb_put(skb, size), msg, size);
+ if (err < 0)
+ goto out_skb;
+
+ skb->dev = dev;
+ skb->sk = sk;
+ skb->protocol = htons(ETH_P_IEEE802154);
+
+ dev_put(dev);
+
+ err = dev_queue_xmit(skb);
+ if (err > 0)
+ err = net_xmit_errno(err);
+
+ return err ?: size;
+
+out_skb:
+ kfree_skb(skb);
+out_dev:
+ dev_put(dev);
+out:
+ return err;
+}
+
+static int dgram_recvmsg(struct kiocb *iocb, struct sock *sk,
+ struct msghdr *msg, size_t len, int noblock,
+ int flags, int *addr_len)
+{
+ size_t copied = 0;
+ int err = -EOPNOTSUPP;
+ struct sk_buff *skb;
+ DECLARE_SOCKADDR(struct sockaddr_ieee802154 *, saddr, msg->msg_name);
+
+ skb = skb_recv_datagram(sk, flags, noblock, &err);
+ if (!skb)
+ goto out;
+
+ copied = skb->len;
+ if (len < copied) {
+ msg->msg_flags |= MSG_TRUNC;
+ copied = len;
+ }
+
+ /* FIXME: skip headers if necessary ?! */
+ err = skb_copy_datagram_msg(skb, 0, msg, copied);
+ if (err)
+ goto done;
+
+ sock_recv_ts_and_drops(msg, sk, skb);
+
+ if (saddr) {
+ saddr->family = AF_IEEE802154;
+ ieee802154_addr_to_sa(&saddr->addr, &mac_cb(skb)->source);
+ *addr_len = sizeof(*saddr);
+ }
+
+ if (flags & MSG_TRUNC)
+ copied = skb->len;
+done:
+ skb_free_datagram(sk, skb);
+out:
+ if (err)
+ return err;
+ return copied;
+}
+
+static int dgram_rcv_skb(struct sock *sk, struct sk_buff *skb)
+{
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!skb)
+ return NET_RX_DROP;
+
+ if (sock_queue_rcv_skb(sk, skb) < 0) {
+ kfree_skb(skb);
+ return NET_RX_DROP;
+ }
+
+ return NET_RX_SUCCESS;
+}
+
+static inline bool
+ieee802154_match_sock(__le64 hw_addr, __le16 pan_id, __le16 short_addr,
+ struct dgram_sock *ro)
+{
+ if (!ro->bound)
+ return true;
+
+ if (ro->src_addr.mode == IEEE802154_ADDR_LONG &&
+ hw_addr == ro->src_addr.extended_addr)
+ return true;
+
+ if (ro->src_addr.mode == IEEE802154_ADDR_SHORT &&
+ pan_id == ro->src_addr.pan_id &&
+ short_addr == ro->src_addr.short_addr)
+ return true;
+
+ return false;
+}
+
+static int ieee802154_dgram_deliver(struct net_device *dev, struct sk_buff *skb)
+{
+ struct sock *sk, *prev = NULL;
+ int ret = NET_RX_SUCCESS;
+ __le16 pan_id, short_addr;
+ __le64 hw_addr;
+
+ /* Data frame processing */
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
+ short_addr = ieee802154_mlme_ops(dev)->get_short_addr(dev);
+ hw_addr = ieee802154_devaddr_from_raw(dev->dev_addr);
+
+ read_lock(&dgram_lock);
+ sk_for_each(sk, &dgram_head) {
+ if (ieee802154_match_sock(hw_addr, pan_id, short_addr,
+ dgram_sk(sk))) {
+ if (prev) {
+ struct sk_buff *clone;
+
+ clone = skb_clone(skb, GFP_ATOMIC);
+ if (clone)
+ dgram_rcv_skb(prev, clone);
+ }
+
+ prev = sk;
+ }
+ }
+
+ if (prev) {
+ dgram_rcv_skb(prev, skb);
+ } else {
+ kfree_skb(skb);
+ ret = NET_RX_DROP;
+ }
+ read_unlock(&dgram_lock);
+
+ return ret;
+}
+
+static int dgram_getsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int __user *optlen)
+{
+ struct dgram_sock *ro = dgram_sk(sk);
+
+ int val, len;
+
+ if (level != SOL_IEEE802154)
+ return -EOPNOTSUPP;
+
+ if (get_user(len, optlen))
+ return -EFAULT;
+
+ len = min_t(unsigned int, len, sizeof(int));
+
+ switch (optname) {
+ case WPAN_WANTACK:
+ val = ro->want_ack;
+ break;
+ case WPAN_SECURITY:
+ if (!ro->secen_override)
+ val = WPAN_SECURITY_DEFAULT;
+ else if (ro->secen)
+ val = WPAN_SECURITY_ON;
+ else
+ val = WPAN_SECURITY_OFF;
+ break;
+ case WPAN_SECURITY_LEVEL:
+ if (!ro->seclevel_override)
+ val = WPAN_SECURITY_LEVEL_DEFAULT;
+ else
+ val = ro->seclevel;
+ break;
+ default:
+ return -ENOPROTOOPT;
+ }
+
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &val, len))
+ return -EFAULT;
+ return 0;
+}
+
+static int dgram_setsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, unsigned int optlen)
+{
+ struct dgram_sock *ro = dgram_sk(sk);
+ struct net *net = sock_net(sk);
+ int val;
+ int err = 0;
+
+ if (optlen < sizeof(int))
+ return -EINVAL;
+
+ if (get_user(val, (int __user *)optval))
+ return -EFAULT;
+
+ lock_sock(sk);
+
+ switch (optname) {
+ case WPAN_WANTACK:
+ ro->want_ack = !!val;
+ break;
+ case WPAN_SECURITY:
+ if (!ns_capable(net->user_ns, CAP_NET_ADMIN) &&
+ !ns_capable(net->user_ns, CAP_NET_RAW)) {
+ err = -EPERM;
+ break;
+ }
+
+ switch (val) {
+ case WPAN_SECURITY_DEFAULT:
+ ro->secen_override = 0;
+ break;
+ case WPAN_SECURITY_ON:
+ ro->secen_override = 1;
+ ro->secen = 1;
+ break;
+ case WPAN_SECURITY_OFF:
+ ro->secen_override = 1;
+ ro->secen = 0;
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+ break;
+ case WPAN_SECURITY_LEVEL:
+ if (!ns_capable(net->user_ns, CAP_NET_ADMIN) &&
+ !ns_capable(net->user_ns, CAP_NET_RAW)) {
+ err = -EPERM;
+ break;
+ }
+
+ if (val < WPAN_SECURITY_LEVEL_DEFAULT ||
+ val > IEEE802154_SCF_SECLEVEL_ENC_MIC128) {
+ err = -EINVAL;
+ } else if (val == WPAN_SECURITY_LEVEL_DEFAULT) {
+ ro->seclevel_override = 0;
+ } else {
+ ro->seclevel_override = 1;
+ ro->seclevel = val;
+ }
+ break;
+ default:
+ err = -ENOPROTOOPT;
+ break;
+ }
+
+ release_sock(sk);
+ return err;
+}
+
+static struct proto ieee802154_dgram_prot = {
+ .name = "IEEE-802.15.4-MAC",
+ .owner = THIS_MODULE,
+ .obj_size = sizeof(struct dgram_sock),
+ .init = dgram_init,
+ .close = dgram_close,
+ .bind = dgram_bind,
+ .sendmsg = dgram_sendmsg,
+ .recvmsg = dgram_recvmsg,
+ .hash = dgram_hash,
+ .unhash = dgram_unhash,
+ .connect = dgram_connect,
+ .disconnect = dgram_disconnect,
+ .ioctl = dgram_ioctl,
+ .getsockopt = dgram_getsockopt,
+ .setsockopt = dgram_setsockopt,
+};
+
+static const struct proto_ops ieee802154_dgram_ops = {
+ .family = PF_IEEE802154,
+ .owner = THIS_MODULE,
+ .release = ieee802154_sock_release,
+ .bind = ieee802154_sock_bind,
+ .connect = ieee802154_sock_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = sock_no_accept,
+ .getname = sock_no_getname,
+ .poll = datagram_poll,
+ .ioctl = ieee802154_sock_ioctl,
+ .listen = sock_no_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = sock_common_setsockopt,
+ .getsockopt = sock_common_getsockopt,
+ .sendmsg = ieee802154_sock_sendmsg,
+ .recvmsg = sock_common_recvmsg,
+ .mmap = sock_no_mmap,
+ .sendpage = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_sock_common_setsockopt,
+ .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
+};
+
+/* Create a socket. Initialise the socket, blank the addresses
+ * set the state.
+ */
+static int ieee802154_create(struct net *net, struct socket *sock,
+ int protocol, int kern)
+{
+ struct sock *sk;
+ int rc;
+ struct proto *proto;
+ const struct proto_ops *ops;
+
+ if (!net_eq(net, &init_net))
+ return -EAFNOSUPPORT;
+
+ switch (sock->type) {
+ case SOCK_RAW:
+ proto = &ieee802154_raw_prot;
+ ops = &ieee802154_raw_ops;
+ break;
+ case SOCK_DGRAM:
+ proto = &ieee802154_dgram_prot;
+ ops = &ieee802154_dgram_ops;
+ break;
+ default:
+ rc = -ESOCKTNOSUPPORT;
+ goto out;
+ }
+
+ rc = -ENOMEM;
+ sk = sk_alloc(net, PF_IEEE802154, GFP_KERNEL, proto);
+ if (!sk)
+ goto out;
+ rc = 0;
+
+ sock->ops = ops;
+
+ sock_init_data(sock, sk);
+ /* FIXME: sk->sk_destruct */
+ sk->sk_family = PF_IEEE802154;
+
+ /* Checksums on by default */
+ sock_set_flag(sk, SOCK_ZAPPED);
+
+ if (sk->sk_prot->hash)
+ sk->sk_prot->hash(sk);
+
+ if (sk->sk_prot->init) {
+ rc = sk->sk_prot->init(sk);
+ if (rc)
+ sk_common_release(sk);
+ }
+out:
+ return rc;
+}
+
+static const struct net_proto_family ieee802154_family_ops = {
+ .family = PF_IEEE802154,
+ .create = ieee802154_create,
+ .owner = THIS_MODULE,
+};
+
+static int ieee802154_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev)
+{
+ if (!netif_running(dev))
+ goto drop;
+ pr_debug("got frame, type %d, dev %p\n", dev->type, dev);
+#ifdef DEBUG
+ print_hex_dump_bytes("ieee802154_rcv ",
+ DUMP_PREFIX_NONE, skb->data, skb->len);
+#endif
+
+ if (!net_eq(dev_net(dev), &init_net))
+ goto drop;
+
+ ieee802154_raw_deliver(dev, skb);
+
+ if (dev->type != ARPHRD_IEEE802154)
+ goto drop;
+
+ if (skb->pkt_type != PACKET_OTHERHOST)
+ return ieee802154_dgram_deliver(dev, skb);
+
+drop:
+ kfree_skb(skb);
+ return NET_RX_DROP;
+}
+
+static struct packet_type ieee802154_packet_type = {
+ .type = htons(ETH_P_IEEE802154),
+ .func = ieee802154_rcv,
+};
+
+static int __init af_ieee802154_init(void)
+{
+ int rc = -EINVAL;
+
+ rc = proto_register(&ieee802154_raw_prot, 1);
+ if (rc)
+ goto out;
+
+ rc = proto_register(&ieee802154_dgram_prot, 1);
+ if (rc)
+ goto err_dgram;
+
+ /* Tell SOCKET that we are alive */
+ rc = sock_register(&ieee802154_family_ops);
+ if (rc)
+ goto err_sock;
+ dev_add_pack(&ieee802154_packet_type);
+
+ rc = 0;
+ goto out;
+
+err_sock:
+ proto_unregister(&ieee802154_dgram_prot);
+err_dgram:
+ proto_unregister(&ieee802154_raw_prot);
+out:
+ return rc;
+}
+
+static void __exit af_ieee802154_remove(void)
+{
+ dev_remove_pack(&ieee802154_packet_type);
+ sock_unregister(PF_IEEE802154);
+ proto_unregister(&ieee802154_dgram_prot);
+ proto_unregister(&ieee802154_raw_prot);
+}
+
+module_init(af_ieee802154_init);
+module_exit(af_ieee802154_remove);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_NETPROTO(PF_IEEE802154);
diff --git a/net/ieee802154/sysfs.c b/net/ieee802154/sysfs.c
index 1613b9c65dfa..dff55c2d87f3 100644
--- a/net/ieee802154/sysfs.c
+++ b/net/ieee802154/sysfs.c
@@ -68,7 +68,7 @@ static DEVICE_ATTR_RO(name)
MASTER_SHOW(current_channel, "%d");
MASTER_SHOW(current_page, "%d");
MASTER_SHOW(transmit_power, "%d +- 1 dB");
-MASTER_SHOW(cca_mode, "%d");
+MASTER_SHOW_COMPLEX(cca_mode, "%d", phy->cca.mode);
static ssize_t channels_supported_show(struct device *dev,
struct device_attribute *attr,
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 05:07:09 +0000