S: Maintained
F: drivers/scsi/53c700*
+ 6LOWPAN GENERIC (BTLE/IEEE 802.15.4)
+ M: Alexander Aring <alex.aring@gmail.com>
+ L: linux-zigbee-devel@lists.sourceforge.net (moderated for non-subscribers)
+ L: linux-bluetooth@vger.kernel.org
+ S: Maintained
+ F: net/6lowpan/
+
6PACK NETWORK DRIVER FOR AX.25
M: Andreas Koensgen <ajk@comnets.uni-bremen.de>
L: linux-hams@vger.kernel.org
8169 10/100/1000 GIGABIT ETHERNET DRIVER
M: Realtek linux nic maintainers <nic_swsd@realtek.com>
-M: Francois Romieu <romieu@fr.zoreil.com>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/realtek/r8169.c
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git
F: arch/arm/mach-imx/
+F: arch/arm/mach-mxs/
F: arch/arm/boot/dts/imx*
F: arch/arm/configs/imx*_defconfig
-ARM/FREESCALE MXS ARM ARCHITECTURE
-M: Shawn Guo <shawn.guo@linaro.org>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
-T: git git://git.linaro.org/people/shawnguo/linux-2.6.git
-F: arch/arm/mach-mxs/
-
ARM/GLOMATION GESBC9312SX MACHINE SUPPORT
M: Lennert Buytenhek <kernel@wantstofly.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-keystone/
-F: drivers/clk/keystone/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
+ARM/TEXAS INSTRUMENT KEYSTONE CLOCK FRAMEWORK
+M: Santosh Shilimkar <santosh.shilimkar@ti.com>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: drivers/clk/keystone/
+
+ARM/TEXAS INSTRUMENT KEYSTONE ClOCKSOURCE
+M: Santosh Shilimkar <santosh.shilimkar@ti.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: drivers/clocksource/timer-keystone.c
+
+ARM/TEXAS INSTRUMENT KEYSTONE RESET DRIVER
+M: Santosh Shilimkar <santosh.shilimkar@ti.com>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: drivers/power/reset/keystone-reset.c
+
+ARM/TEXAS INSTRUMENT AEMIF/EMIF DRIVERS
+M: Santosh Shilimkar <santosh.shilimkar@ti.com>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: drivers/memory/*emif*
+
ARM/LOGICPD PXA270 MACHINE SUPPORT
M: Lennert Buytenhek <kernel@wantstofly.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
Q: http://patchwork.kernel.org/project/linux-sh/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git next
S: Supported
+F: arch/arm/boot/dts/emev2*
+F: arch/arm/boot/dts/r7s*
+F: arch/arm/boot/dts/r8a*
+F: arch/arm/boot/dts/sh*
+F: arch/arm/configs/ape6evm_defconfig
+F: arch/arm/configs/armadillo800eva_defconfig
+F: arch/arm/configs/bockw_defconfig
+F: arch/arm/configs/genmai_defconfig
+F: arch/arm/configs/koelsch_defconfig
+F: arch/arm/configs/kzm9g_defconfig
+F: arch/arm/configs/lager_defconfig
+F: arch/arm/configs/mackerel_defconfig
+F: arch/arm/configs/marzen_defconfig
+F: arch/arm/configs/shmobile_defconfig
F: arch/arm/mach-shmobile/
F: drivers/sh/
F: drivers/net/bonding/
F: include/uapi/linux/if_bonding.h
+BPF (Safe dynamic programs and tools)
+M: Alexei Starovoitov <ast@kernel.org>
+L: netdev@vger.kernel.org
+L: linux-kernel@vger.kernel.org
+S: Supported
+F: kernel/bpf/
+
BROADCOM B44 10/100 ETHERNET DRIVER
M: Gary Zambrano <zambrano@broadcom.com>
L: netdev@vger.kernel.org
F: drivers/net/ethernet/broadcom/genet/
BROADCOM BNX2 GIGABIT ETHERNET DRIVER
-M: Michael Chan <mchan@broadcom.com>
+M: Sony Chacko <sony.chacko@qlogic.com>
+M: Dept-HSGLinuxNICDev@qlogic.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/broadcom/bnx2.*
F: arch/arm/boot/dts/bcm470*
BROADCOM TG3 GIGABIT ETHERNET DRIVER
-M: Nithin Nayak Sujir <nsujir@broadcom.com>
+M: Prashant Sreedharan <prashant@broadcom.com>
M: Michael Chan <mchan@broadcom.com>
L: netdev@vger.kernel.org
S: Supported
T: quilt http://www.infradead.org/~rdunlap/Doc/patches/
S: Maintained
F: Documentation/
+X: Documentation/ABI/
+X: Documentation/devicetree/
+X: Documentation/[a-z][a-z]_[A-Z][A-Z]/
DOUBLETALK DRIVER
M: "James R. Van Zandt" <jrv@vanzandt.mv.com>
S: Maintained
F: drivers/scsi/eata_pio.*
-EBTABLES
-L: netfilter-devel@vger.kernel.org
-W: http://ebtables.sourceforge.net/
-S: Orphan
-F: include/linux/netfilter_bridge/ebt_*.h
-F: include/uapi/linux/netfilter_bridge/ebt_*.h
-F: net/bridge/netfilter/ebt*.c
-
EC100 MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
L: linux-media@vger.kernel.org
F: drivers/idle/i7300_idle.c
IEEE 802.15.4 SUBSYSTEM
-M: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
-M: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+M: Alexander Aring <alex.aring@gmail.com>
L: linux-zigbee-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://apps.sourceforge.net/trac/linux-zigbee
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan.git
F: arch/arm/mach-lpc32xx/
LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
-M: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com>
-M: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
-M: support@lsi.com
-L: DL-MPTFusionLinux@lsi.com
+M: Nagalakshmi Nandigama <nagalakshmi.nandigama@avagotech.com>
+M: Praveen Krishnamoorthy <praveen.krishnamoorthy@avagotech.com>
+M: Sreekanth Reddy <sreekanth.reddy@avagotech.com>
+M: Abhijit Mahajan <abhijit.mahajan@avagotech.com>
+L: MPT-FusionLinux.pdl@avagotech.com
L: linux-scsi@vger.kernel.org
W: http://www.lsilogic.com/support
S: Supported
F: Documentation/networking/vxge.txt
F: drivers/net/ethernet/neterion/
-NETFILTER/IPTABLES
+NETFILTER ({IP,IP6,ARP,EB,NF}TABLES)
M: Pablo Neira Ayuso <pablo@netfilter.org>
M: Patrick McHardy <kaber@trash.net>
M: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
L: netfilter-devel@vger.kernel.org
-L: netfilter@vger.kernel.org
L: coreteam@netfilter.org
W: http://www.netfilter.org/
W: http://www.iptables.org/
PCI DRIVER FOR IMX6
M: Richard Zhu <r65037@freescale.com>
-M: Shawn Guo <shawn.guo@linaro.org>
+M: Shawn Guo <shawn.guo@freescale.com>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
M: Guan Xuetao <gxt@mprc.pku.edu.cn>
W: http://mprc.pku.edu.cn/~guanxuetao/linux
S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32.git
+T: git git://github.com/gxt/linux.git
F: drivers/input/serio/i8042-unicore32io.h
F: drivers/i2c/busses/i2c-puv3.c
F: drivers/video/fb-puv3.c
SECURITY SUBSYSTEM
M: James Morris <james.l.morris@oracle.com>
+M: Serge E. Hallyn <serge@hallyn.com>
L: linux-security-module@vger.kernel.org (suggested Cc:)
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git
W: http://kernsec.org/
F: include/linux/ata.h
F: include/linux/libata.h
+SERIAL ATA AHCI PLATFORM devices support
+M: Hans de Goede <hdegoede@redhat.com>
+M: Tejun Heo <tj@kernel.org>
+L: linux-ide@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+S: Supported
+F: drivers/ata/ahci_platform.c
+F: drivers/ata/libahci_platform.c
+F: include/linux/ahci_platform.h
+
SERVER ENGINES 10Gbps iSCSI - BladeEngine 2 DRIVER
M: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
L: linux-scsi@vger.kernel.org
F: drivers/usb/misc/sisusbvga/
SLAB ALLOCATOR
-M: Christoph Lameter <cl@linux-foundation.org>
+M: Christoph Lameter <cl@linux.com>
M: Pekka Enberg <penberg@kernel.org>
-M: Matt Mackall <mpm@selenic.com>
+M: David Rientjes <rientjes@google.com>
+M: Joonsoo Kim <iamjoonsoo.kim@lge.com>
+M: Andrew Morton <akpm@linux-foundation.org>
L: linux-mm@kvack.org
S: Maintained
F: include/linux/sl?b*.h
-F: mm/sl?b.c
+F: mm/sl?b*
SLEEPABLE READ-COPY UPDATE (SRCU)
M: Lai Jiangshan <laijs@cn.fujitsu.com>
THERMAL
M: Zhang Rui <rui.zhang@intel.com>
-M: Eduardo Valentin <eduardo.valentin@ti.com>
+M: Eduardo Valentin <edubezval@gmail.com>
L: linux-pm@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal.git
F: drivers/platform/x86/thinkpad_acpi.c
TI BANDGAP AND THERMAL DRIVER
-M: Eduardo Valentin <eduardo.valentin@ti.com>
+M: Eduardo Valentin <edubezval@gmail.com>
L: linux-pm@vger.kernel.org
S: Supported
F: drivers/thermal/ti-soc-thermal/
M: Guan Xuetao <gxt@mprc.pku.edu.cn>
W: http://mprc.pku.edu.cn/~guanxuetao/linux
S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32.git
+T: git git://github.com/gxt/linux.git
F: arch/unicore32/
UNIFDEF
F: drivers/usb/host/isp116x*
F: include/linux/usb/isp116x.h
-USB KAWASAKI LSI DRIVER
-M: Oliver Neukum <oliver@neukum.org>
-L: linux-usb@vger.kernel.org
-S: Maintained
-F: drivers/usb/serial/kl5kusb105.*
-
USB MASS STORAGE DRIVER
M: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
L: linux-usb@vger.kernel.org
F: Documentation/usb/ohci.txt
F: drivers/usb/host/ohci*
-USB OPTION-CARD DRIVER
-M: Matthias Urlichs <smurf@smurf.noris.de>
-L: linux-usb@vger.kernel.org
-S: Maintained
-F: drivers/usb/serial/option.c
-
USB PEGASUS DRIVER
M: Petko Manolov <petkan@nucleusys.com>
L: linux-usb@vger.kernel.org
F: drivers/net/usb/rtl8150.c
USB SERIAL SUBSYSTEM
-M: Johan Hovold <jhovold@gmail.com>
+M: Johan Hovold <johan@kernel.org>
L: linux-usb@vger.kernel.org
S: Maintained
F: Documentation/usb/usb-serial.txt
S: Supported
F: arch/x86/kernel/cpu/vmware.c
+VMWARE BALLOON DRIVER
+M: Xavier Deguillard <xdeguillard@vmware.com>
+M: Philip Moltmann <moltmann@vmware.com>
+M: "VMware, Inc." <pv-drivers@vmware.com>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: drivers/misc/vmw_balloon.c
+
VMWARE VMXNET3 ETHERNET DRIVER
M: Shreyas Bhatewara <sbhatewara@vmware.com>
M: "VMware, Inc." <pv-drivers@vmware.com>
--- /dev/null
-/*
- * Based on patches from Jon Smirl <jonsmirl@gmail.com>
+ /*
+ * Copyright 2011, Siemens AG
+ * written by Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
+ */
+
-/*
- * Uncompress address function for source and
++/* 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+ /* 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/netdevice.h>
+ #include <net/6lowpan.h>
+ #include <net/ipv6.h>
+ #include <net/af_ieee802154.h>
+
- struct in6_addr *ipaddr, const u8 address_mode,
- const u8 *lladdr, const u8 addr_type,
- const u8 addr_len)
++/* Uncompress address function for source and
+ * destination address(non-multicast).
+ *
+ * address_mode is sam value or dam value.
+ */
+ static int uncompress_addr(struct sk_buff *skb,
-/*
- * Uncompress address function for source context
++ struct in6_addr *ipaddr, const u8 address_mode,
++ const u8 *lladdr, const u8 addr_type,
++ const u8 addr_len)
+ {
+ bool fail;
+
+ switch (address_mode) {
+ case LOWPAN_IPHC_ADDR_00:
+ /* for global link addresses */
+ fail = lowpan_fetch_skb(skb, ipaddr->s6_addr, 16);
+ break;
+ case LOWPAN_IPHC_ADDR_01:
+ /* fe:80::XXXX:XXXX:XXXX:XXXX */
+ ipaddr->s6_addr[0] = 0xFE;
+ ipaddr->s6_addr[1] = 0x80;
+ fail = lowpan_fetch_skb(skb, &ipaddr->s6_addr[8], 8);
+ break;
+ case LOWPAN_IPHC_ADDR_02:
+ /* fe:80::ff:fe00:XXXX */
+ ipaddr->s6_addr[0] = 0xFE;
+ ipaddr->s6_addr[1] = 0x80;
+ ipaddr->s6_addr[11] = 0xFF;
+ ipaddr->s6_addr[12] = 0xFE;
+ fail = lowpan_fetch_skb(skb, &ipaddr->s6_addr[14], 2);
+ break;
+ case LOWPAN_IPHC_ADDR_03:
+ fail = false;
+ switch (addr_type) {
+ case IEEE802154_ADDR_LONG:
+ /* fe:80::XXXX:XXXX:XXXX:XXXX
+ * \_________________/
+ * hwaddr
+ */
+ ipaddr->s6_addr[0] = 0xFE;
+ ipaddr->s6_addr[1] = 0x80;
+ memcpy(&ipaddr->s6_addr[8], lladdr, addr_len);
+ /* second bit-flip (Universe/Local)
+ * is done according RFC2464
+ */
+ ipaddr->s6_addr[8] ^= 0x02;
+ break;
+ case IEEE802154_ADDR_SHORT:
+ /* fe:80::ff:fe00:XXXX
+ * \__/
+ * short_addr
+ *
+ * Universe/Local bit is zero.
+ */
+ ipaddr->s6_addr[0] = 0xFE;
+ ipaddr->s6_addr[1] = 0x80;
+ ipaddr->s6_addr[11] = 0xFF;
+ ipaddr->s6_addr[12] = 0xFE;
+ ipaddr->s6_addr16[7] = htons(*((u16 *)lladdr));
+ break;
+ default:
+ pr_debug("Invalid addr_type set\n");
+ return -EINVAL;
+ }
+ break;
+ default:
+ pr_debug("Invalid address mode value: 0x%x\n", address_mode);
+ return -EINVAL;
+ }
+
+ if (fail) {
+ pr_debug("Failed to fetch skb data\n");
+ return -EIO;
+ }
+
+ raw_dump_inline(NULL, "Reconstructed ipv6 addr is",
+ ipaddr->s6_addr, 16);
+
+ return 0;
+ }
+
- struct in6_addr *ipaddr,
- const u8 sam)
++/* Uncompress address function for source context
+ * based address(non-multicast).
+ */
+ static int uncompress_context_based_src_addr(struct sk_buff *skb,
- struct net_device *dev, skb_delivery_cb deliver_skb)
++ struct in6_addr *ipaddr,
++ const u8 sam)
+ {
+ switch (sam) {
+ case LOWPAN_IPHC_ADDR_00:
+ /* unspec address ::
+ * Do nothing, address is already ::
+ */
+ break;
+ case LOWPAN_IPHC_ADDR_01:
+ /* TODO */
+ case LOWPAN_IPHC_ADDR_02:
+ /* TODO */
+ case LOWPAN_IPHC_ADDR_03:
+ /* TODO */
+ netdev_warn(skb->dev, "SAM value 0x%x not supported\n", sam);
+ return -EINVAL;
+ default:
+ pr_debug("Invalid sam value: 0x%x\n", sam);
+ return -EINVAL;
+ }
+
+ raw_dump_inline(NULL,
+ "Reconstructed context based ipv6 src addr is",
+ ipaddr->s6_addr, 16);
+
+ return 0;
+ }
+
+ static int skb_deliver(struct sk_buff *skb, struct ipv6hdr *hdr,
- new = skb_copy_expand(skb, sizeof(struct ipv6hdr), skb_tailroom(skb),
- GFP_ATOMIC);
++ struct net_device *dev, skb_delivery_cb deliver_skb)
+ {
+ struct sk_buff *new;
+ int stat;
+
- new->data, new->len);
++ new = skb_copy_expand(skb, sizeof(struct ipv6hdr),
++ skb_tailroom(skb), GFP_ATOMIC);
+ kfree_skb(skb);
+
+ if (!new)
+ return -ENOMEM;
+
+ skb_push(new, sizeof(struct ipv6hdr));
+ skb_reset_network_header(new);
+ skb_copy_to_linear_data(new, hdr, sizeof(struct ipv6hdr));
+
+ new->protocol = htons(ETH_P_IPV6);
+ new->pkt_type = PACKET_HOST;
+ new->dev = dev;
+
+ raw_dump_table(__func__, "raw skb data dump before receiving",
- struct in6_addr *ipaddr,
- const u8 dam)
++ new->data, new->len);
+
+ stat = deliver_skb(new, dev);
+
+ kfree_skb(new);
+
+ return stat;
+ }
+
+ /* Uncompress function for multicast destination address,
+ * when M bit is set.
+ */
+ static int
+ lowpan_uncompress_multicast_daddr(struct sk_buff *skb,
- break;
++ struct in6_addr *ipaddr,
++ const u8 dam)
+ {
+ bool fail;
+
+ switch (dam) {
+ case LOWPAN_IPHC_DAM_00:
+ /* 00: 128 bits. The full address
+ * is carried in-line.
+ */
+ fail = lowpan_fetch_skb(skb, ipaddr->s6_addr, 16);
+ break;
+ case LOWPAN_IPHC_DAM_01:
+ /* 01: 48 bits. The address takes
+ * the form ffXX::00XX:XXXX:XXXX.
+ */
+ ipaddr->s6_addr[0] = 0xFF;
+ fail = lowpan_fetch_skb(skb, &ipaddr->s6_addr[1], 1);
+ fail |= lowpan_fetch_skb(skb, &ipaddr->s6_addr[11], 5);
+ break;
+ case LOWPAN_IPHC_DAM_10:
+ /* 10: 32 bits. The address takes
+ * the form ffXX::00XX:XXXX.
+ */
+ ipaddr->s6_addr[0] = 0xFF;
+ fail = lowpan_fetch_skb(skb, &ipaddr->s6_addr[1], 1);
+ fail |= lowpan_fetch_skb(skb, &ipaddr->s6_addr[13], 3);
+ break;
+ case LOWPAN_IPHC_DAM_11:
+ /* 11: 8 bits. The address takes
+ * the form ff02::00XX.
+ */
+ ipaddr->s6_addr[0] = 0xFF;
+ ipaddr->s6_addr[1] = 0x02;
+ fail = lowpan_fetch_skb(skb, &ipaddr->s6_addr[15], 1);
+ break;
+ default:
+ pr_debug("DAM value has a wrong value: 0x%x\n", dam);
+ return -EINVAL;
+ }
+
+ if (fail) {
+ pr_debug("Failed to fetch skb data\n");
+ return -EIO;
+ }
+
+ raw_dump_inline(NULL, "Reconstructed ipv6 multicast addr is",
+ ipaddr->s6_addr, 16);
+
+ return 0;
+ }
+
+ static int
+ uncompress_udp_header(struct sk_buff *skb, struct udphdr *uh)
+ {
+ bool fail;
+ u8 tmp = 0, val = 0;
+
+ if (!uh)
+ goto err;
+
+ fail = lowpan_fetch_skb(skb, &tmp, 1);
+
+ if ((tmp & LOWPAN_NHC_UDP_MASK) == LOWPAN_NHC_UDP_ID) {
+ pr_debug("UDP header uncompression\n");
+ switch (tmp & LOWPAN_NHC_UDP_CS_P_11) {
+ case LOWPAN_NHC_UDP_CS_P_00:
+ fail |= lowpan_fetch_skb(skb, &uh->source, 2);
+ fail |= lowpan_fetch_skb(skb, &uh->dest, 2);
+ break;
+ case LOWPAN_NHC_UDP_CS_P_01:
+ fail |= lowpan_fetch_skb(skb, &uh->source, 2);
+ fail |= lowpan_fetch_skb(skb, &val, 1);
+ uh->dest = htons(val + LOWPAN_NHC_UDP_8BIT_PORT);
+ break;
+ case LOWPAN_NHC_UDP_CS_P_10:
+ fail |= lowpan_fetch_skb(skb, &val, 1);
+ uh->source = htons(val + LOWPAN_NHC_UDP_8BIT_PORT);
+ fail |= lowpan_fetch_skb(skb, &uh->dest, 2);
+ break;
+ case LOWPAN_NHC_UDP_CS_P_11:
+ fail |= lowpan_fetch_skb(skb, &val, 1);
+ uh->source = htons(LOWPAN_NHC_UDP_4BIT_PORT +
+ (val >> 4));
+ uh->dest = htons(LOWPAN_NHC_UDP_4BIT_PORT +
+ (val & 0x0f));
+ break;
+ default:
+ pr_debug("ERROR: unknown UDP format\n");
+ goto err;
- /*
- * UDP lenght needs to be infered from the lower layers
+ }
+
+ pr_debug("uncompressed UDP ports: src = %d, dst = %d\n",
+ ntohs(uh->source), ntohs(uh->dest));
+
+ /* checksum */
+ if (tmp & LOWPAN_NHC_UDP_CS_C) {
+ pr_debug_ratelimited("checksum elided currently not supported\n");
+ goto err;
+ } else {
+ fail |= lowpan_fetch_skb(skb, &uh->check, 2);
+ }
+
- const u8 *saddr, const u8 saddr_type, const u8 saddr_len,
- const u8 *daddr, const u8 daddr_type, const u8 daddr_len,
- u8 iphc0, u8 iphc1, skb_delivery_cb deliver_skb)
++ /* UDP lenght needs to be infered from the lower layers
+ * here, we obtain the hint from the remaining size of the
+ * frame
+ */
+ uh->len = htons(skb->len + sizeof(struct udphdr));
+ pr_debug("uncompressed UDP length: src = %d", ntohs(uh->len));
+ } else {
+ pr_debug("ERROR: unsupported NH format\n");
+ goto err;
+ }
+
+ if (fail)
+ goto err;
+
+ return 0;
+ err:
+ return -EINVAL;
+ }
+
+ /* TTL uncompression values */
+ static const u8 lowpan_ttl_values[] = { 0, 1, 64, 255 };
+
+ int lowpan_process_data(struct sk_buff *skb, struct net_device *dev,
- skb->data, skb->len);
++ const u8 *saddr, const u8 saddr_type,
++ const u8 saddr_len, const u8 *daddr,
++ const u8 daddr_type, const u8 daddr_len,
++ u8 iphc0, u8 iphc1, skb_delivery_cb deliver_skb)
+ {
+ struct ipv6hdr hdr = {};
+ u8 tmp, num_context = 0;
+ int err;
+
+ raw_dump_table(__func__, "raw skb data dump uncompressed",
- /*
- * Traffic Class and FLow Label carried in-line
++ skb->data, skb->len);
+
+ /* another if the CID flag is set */
+ if (iphc1 & LOWPAN_IPHC_CID) {
+ pr_debug("CID flag is set, increase header with one\n");
+ if (lowpan_fetch_skb_u8(skb, &num_context))
+ goto drop;
+ }
+
+ hdr.version = 6;
+
+ /* Traffic Class and Flow Label */
+ switch ((iphc0 & LOWPAN_IPHC_TF) >> 3) {
- /*
- * Traffic class carried in-line
++ /* Traffic Class and FLow Label carried in-line
+ * ECN + DSCP + 4-bit Pad + Flow Label (4 bytes)
+ */
+ case 0: /* 00b */
+ if (lowpan_fetch_skb_u8(skb, &tmp))
+ goto drop;
+
+ memcpy(&hdr.flow_lbl, &skb->data[0], 3);
+ skb_pull(skb, 3);
+ hdr.priority = ((tmp >> 2) & 0x0f);
+ hdr.flow_lbl[0] = ((tmp >> 2) & 0x30) | (tmp << 6) |
+ (hdr.flow_lbl[0] & 0x0f);
+ break;
- /*
- * Flow Label carried in-line
++ /* Traffic class carried in-line
+ * ECN + DSCP (1 byte), Flow Label is elided
+ */
+ case 2: /* 10b */
+ if (lowpan_fetch_skb_u8(skb, &tmp))
+ goto drop;
+
+ hdr.priority = ((tmp >> 2) & 0x0f);
+ hdr.flow_lbl[0] = ((tmp << 6) & 0xC0) | ((tmp >> 2) & 0x30);
+ break;
- if ((iphc0 & 0x03) != LOWPAN_IPHC_TTL_I)
++ /* Flow Label carried in-line
+ * ECN + 2-bit Pad + Flow Label (3 bytes), DSCP is elided
+ */
+ case 1: /* 01b */
+ if (lowpan_fetch_skb_u8(skb, &tmp))
+ goto drop;
+
+ hdr.flow_lbl[0] = (skb->data[0] & 0x0F) | ((tmp >> 2) & 0x30);
+ memcpy(&hdr.flow_lbl[1], &skb->data[0], 2);
+ skb_pull(skb, 2);
+ break;
+ /* Traffic Class and Flow Label are elided */
+ case 3: /* 11b */
+ break;
+ default:
+ break;
+ }
+
+ /* Next Header */
+ if ((iphc0 & LOWPAN_IPHC_NH_C) == 0) {
+ /* Next header is carried inline */
+ if (lowpan_fetch_skb_u8(skb, &(hdr.nexthdr)))
+ goto drop;
+
+ pr_debug("NH flag is set, next header carried inline: %02x\n",
+ hdr.nexthdr);
+ }
+
+ /* Hop Limit */
- else {
++ if ((iphc0 & 0x03) != LOWPAN_IPHC_TTL_I) {
+ hdr.hop_limit = lowpan_ttl_values[iphc0 & 0x03];
- skb, &hdr.saddr, tmp);
++ } else {
+ if (lowpan_fetch_skb_u8(skb, &(hdr.hop_limit)))
+ goto drop;
+ }
+
+ /* Extract SAM to the tmp variable */
+ tmp = ((iphc1 & LOWPAN_IPHC_SAM) >> LOWPAN_IPHC_SAM_BIT) & 0x03;
+
+ if (iphc1 & LOWPAN_IPHC_SAC) {
+ /* Source address context based uncompression */
+ pr_debug("SAC bit is set. Handle context based source address.\n");
+ err = uncompress_context_based_src_addr(
- saddr_type, saddr_len);
++ skb, &hdr.saddr, tmp);
+ } else {
+ /* Source address uncompression */
+ pr_debug("source address stateless compression\n");
+ err = uncompress_addr(skb, &hdr.saddr, tmp, saddr,
- daddr_type, daddr_len);
++ saddr_type, saddr_len);
+ }
+
+ /* Check on error of previous branch */
+ if (err)
+ goto drop;
+
+ /* Extract DAM to the tmp variable */
+ tmp = ((iphc1 & LOWPAN_IPHC_DAM_11) >> LOWPAN_IPHC_DAM_BIT) & 0x03;
+
+ /* check for Multicast Compression */
+ if (iphc1 & LOWPAN_IPHC_M) {
+ if (iphc1 & LOWPAN_IPHC_DAC) {
+ pr_debug("dest: context-based mcast compression\n");
+ /* TODO: implement this */
+ } else {
+ err = lowpan_uncompress_multicast_daddr(
+ skb, &hdr.daddr, tmp);
+ if (err)
+ goto drop;
+ }
+ } else {
+ err = uncompress_addr(skb, &hdr.daddr, tmp, daddr,
- tmp, &hdr.daddr);
++ daddr_type, daddr_len);
+ pr_debug("dest: stateless compression mode %d dest %pI6c\n",
- /*
- * replace the compressed UDP head by the uncompressed UDP
++ tmp, &hdr.daddr);
+ if (err)
+ goto drop;
+ }
+
+ /* UDP data uncompression */
+ if (iphc0 & LOWPAN_IPHC_NH_C) {
+ struct udphdr uh;
+ struct sk_buff *new;
++
+ if (uncompress_udp_header(skb, &uh))
+ goto drop;
+
- (u8 *)&uh, sizeof(uh));
++ /* replace the compressed UDP head by the uncompressed UDP
+ * header
+ */
+ new = skb_copy_expand(skb, sizeof(struct udphdr),
+ skb_tailroom(skb), GFP_ATOMIC);
+ kfree_skb(skb);
+
+ if (!new)
+ return -ENOMEM;
+
+ skb = new;
+
+ skb_push(skb, sizeof(struct udphdr));
+ skb_reset_transport_header(skb);
+ skb_copy_to_linear_data(skb, &uh, sizeof(struct udphdr));
+
+ raw_dump_table(__func__, "raw UDP header dump",
- raw_dump_table(__func__, "raw header dump", (u8 *)&hdr,
- sizeof(hdr));
++ (u8 *)&uh, sizeof(uh));
+
+ hdr.nexthdr = UIP_PROTO_UDP;
+ }
+
+ hdr.payload_len = htons(skb->len);
+
+ pr_debug("skb headroom size = %d, data length = %d\n",
+ skb_headroom(skb), skb->len);
+
+ pr_debug("IPv6 header dump:\n\tversion = %d\n\tlength = %d\n\t"
+ "nexthdr = 0x%02x\n\thop_lim = %d\n\tdest = %pI6c\n",
+ hdr.version, ntohs(hdr.payload_len), hdr.nexthdr,
+ hdr.hop_limit, &hdr.daddr);
+
- const struct in6_addr *ipaddr,
- const unsigned char *lladdr)
++ raw_dump_table(__func__, "raw header dump",
++ (u8 *)&hdr, sizeof(hdr));
+
+ return skb_deliver(skb, &hdr, dev, deliver_skb);
+
+ drop:
+ kfree_skb(skb);
+ return -EINVAL;
+ }
+ EXPORT_SYMBOL_GPL(lowpan_process_data);
+
+ static u8 lowpan_compress_addr_64(u8 **hc06_ptr, u8 shift,
- *hc06_ptr - 2, 2);
++ const struct in6_addr *ipaddr,
++ const unsigned char *lladdr)
+ {
+ u8 val = 0;
+
+ if (is_addr_mac_addr_based(ipaddr, lladdr)) {
+ val = 3; /* 0-bits */
+ pr_debug("address compression 0 bits\n");
+ } else if (lowpan_is_iid_16_bit_compressable(ipaddr)) {
+ /* compress IID to 16 bits xxxx::XXXX */
+ memcpy(*hc06_ptr, &ipaddr->s6_addr16[7], 2);
+ *hc06_ptr += 2;
+ val = 2; /* 16-bits */
+ raw_dump_inline(NULL, "Compressed ipv6 addr is (16 bits)",
- *hc06_ptr - 8, 8);
++ *hc06_ptr - 2, 2);
+ } else {
+ /* do not compress IID => xxxx::IID */
+ memcpy(*hc06_ptr, &ipaddr->s6_addr16[4], 8);
+ *hc06_ptr += 8;
+ val = 1; /* 64-bits */
+ raw_dump_inline(NULL, "Compressed ipv6 addr is (64 bits)",
- unsigned short type, const void *_daddr,
- const void *_saddr, unsigned int len)
++ *hc06_ptr - 8, 8);
+ }
+
+ return rol8(val, shift);
+ }
+
+ static void compress_udp_header(u8 **hc06_ptr, struct sk_buff *skb)
+ {
+ struct udphdr *uh = udp_hdr(skb);
+ u8 tmp;
+
+ if (((ntohs(uh->source) & LOWPAN_NHC_UDP_4BIT_MASK) ==
+ LOWPAN_NHC_UDP_4BIT_PORT) &&
+ ((ntohs(uh->dest) & LOWPAN_NHC_UDP_4BIT_MASK) ==
+ LOWPAN_NHC_UDP_4BIT_PORT)) {
+ pr_debug("UDP header: both ports compression to 4 bits\n");
+ /* compression value */
+ tmp = LOWPAN_NHC_UDP_CS_P_11;
+ lowpan_push_hc_data(hc06_ptr, &tmp, sizeof(tmp));
+ /* source and destination port */
+ tmp = ntohs(uh->dest) - LOWPAN_NHC_UDP_4BIT_PORT +
+ ((ntohs(uh->source) - LOWPAN_NHC_UDP_4BIT_PORT) << 4);
+ lowpan_push_hc_data(hc06_ptr, &tmp, sizeof(tmp));
+ } else if ((ntohs(uh->dest) & LOWPAN_NHC_UDP_8BIT_MASK) ==
+ LOWPAN_NHC_UDP_8BIT_PORT) {
+ pr_debug("UDP header: remove 8 bits of dest\n");
+ /* compression value */
+ tmp = LOWPAN_NHC_UDP_CS_P_01;
+ lowpan_push_hc_data(hc06_ptr, &tmp, sizeof(tmp));
+ /* source port */
+ lowpan_push_hc_data(hc06_ptr, &uh->source, sizeof(uh->source));
+ /* destination port */
+ tmp = ntohs(uh->dest) - LOWPAN_NHC_UDP_8BIT_PORT;
+ lowpan_push_hc_data(hc06_ptr, &tmp, sizeof(tmp));
+ } else if ((ntohs(uh->source) & LOWPAN_NHC_UDP_8BIT_MASK) ==
+ LOWPAN_NHC_UDP_8BIT_PORT) {
+ pr_debug("UDP header: remove 8 bits of source\n");
+ /* compression value */
+ tmp = LOWPAN_NHC_UDP_CS_P_10;
+ lowpan_push_hc_data(hc06_ptr, &tmp, sizeof(tmp));
+ /* source port */
+ tmp = ntohs(uh->source) - LOWPAN_NHC_UDP_8BIT_PORT;
+ lowpan_push_hc_data(hc06_ptr, &tmp, sizeof(tmp));
+ /* destination port */
+ lowpan_push_hc_data(hc06_ptr, &uh->dest, sizeof(uh->dest));
+ } else {
+ pr_debug("UDP header: can't compress\n");
+ /* compression value */
+ tmp = LOWPAN_NHC_UDP_CS_P_00;
+ lowpan_push_hc_data(hc06_ptr, &tmp, sizeof(tmp));
+ /* source port */
+ lowpan_push_hc_data(hc06_ptr, &uh->source, sizeof(uh->source));
+ /* destination port */
+ lowpan_push_hc_data(hc06_ptr, &uh->dest, sizeof(uh->dest));
+ }
+
+ /* checksum is always inline */
+ lowpan_push_hc_data(hc06_ptr, &uh->check, sizeof(uh->check));
+
+ /* skip the UDP header */
+ skb_pull(skb, sizeof(struct udphdr));
+ }
+
+ int lowpan_header_compress(struct sk_buff *skb, struct net_device *dev,
- hdr->version, ntohs(hdr->payload_len), hdr->nexthdr,
- hdr->hop_limit, &hdr->daddr);
++ unsigned short type, const void *_daddr,
++ const void *_saddr, unsigned int len)
+ {
+ u8 tmp, iphc0, iphc1, *hc06_ptr;
+ struct ipv6hdr *hdr;
+ u8 head[100] = {};
+
+ if (type != ETH_P_IPV6)
+ return -EINVAL;
+
+ hdr = ipv6_hdr(skb);
+ hc06_ptr = head + 2;
+
+ pr_debug("IPv6 header dump:\n\tversion = %d\n\tlength = %d\n"
+ "\tnexthdr = 0x%02x\n\thop_lim = %d\n\tdest = %pI6c\n",
- skb_network_header(skb), sizeof(struct ipv6hdr));
++ hdr->version, ntohs(hdr->payload_len), hdr->nexthdr,
++ hdr->hop_limit, &hdr->daddr);
+
+ raw_dump_table(__func__, "raw skb network header dump",
- /*
- * As we copy some bit-length fields, in the IPHC encoding bytes,
++ skb_network_header(skb), sizeof(struct ipv6hdr));
+
- "sending raw skb network uncompressed packet",
- skb->data, skb->len);
++ /* As we copy some bit-length fields, in the IPHC encoding bytes,
+ * we sometimes use |=
+ * If the field is 0, and the current bit value in memory is 1,
+ * this does not work. We therefore reset the IPHC encoding here
+ */
+ iphc0 = LOWPAN_DISPATCH_IPHC;
+ iphc1 = 0;
+
+ /* TODO: context lookup */
+
+ raw_dump_inline(__func__, "saddr",
+ (unsigned char *)_saddr, IEEE802154_ADDR_LEN);
+ raw_dump_inline(__func__, "daddr",
+ (unsigned char *)_daddr, IEEE802154_ADDR_LEN);
+
+ raw_dump_table(__func__,
- /*
- * Traffic class, flow label
++ "sending raw skb network uncompressed packet",
++ skb->data, skb->len);
+
- (hdr->flow_lbl[1] == 0) && (hdr->flow_lbl[2] == 0)) {
++ /* Traffic class, flow label
+ * If flow label is 0, compress it. If traffic class is 0, compress it
+ * We have to process both in the same time as the offset of traffic
+ * class depends on the presence of version and flow label
+ */
+
+ /* hc06 format of TC is ECN | DSCP , original one is DSCP | ECN */
+ tmp = (hdr->priority << 4) | (hdr->flow_lbl[0] >> 4);
+ tmp = ((tmp & 0x03) << 6) | (tmp >> 2);
+
+ if (((hdr->flow_lbl[0] & 0x0F) == 0) &&
- ((hdr->flow_lbl[0] & 0xF0) == 0)) {
++ (hdr->flow_lbl[1] == 0) && (hdr->flow_lbl[2] == 0)) {
+ /* flow label can be compressed */
+ iphc0 |= LOWPAN_IPHC_FL_C;
+ if ((hdr->priority == 0) &&
- ((hdr->flow_lbl[0] & 0xF0) == 0)) {
++ ((hdr->flow_lbl[0] & 0xF0) == 0)) {
+ /* compress (elide) all */
+ iphc0 |= LOWPAN_IPHC_TC_C;
+ } else {
+ /* compress only the flow label */
+ *hc06_ptr = tmp;
+ hc06_ptr += 1;
+ }
+ } else {
+ /* Flow label cannot be compressed */
+ if ((hdr->priority == 0) &&
- /*
- * Hop limit
++ ((hdr->flow_lbl[0] & 0xF0) == 0)) {
+ /* compress only traffic class */
+ iphc0 |= LOWPAN_IPHC_TC_C;
+ *hc06_ptr = (tmp & 0xc0) | (hdr->flow_lbl[0] & 0x0F);
+ memcpy(hc06_ptr + 1, &hdr->flow_lbl[1], 2);
+ hc06_ptr += 3;
+ } else {
+ /* compress nothing */
+ memcpy(hc06_ptr, hdr, 4);
+ /* replace the top byte with new ECN | DSCP format */
+ *hc06_ptr = tmp;
+ hc06_ptr += 4;
+ }
+ }
+
+ /* NOTE: payload length is always compressed */
+
+ /* Next Header is compress if UDP */
+ if (hdr->nexthdr == UIP_PROTO_UDP)
+ iphc0 |= LOWPAN_IPHC_NH_C;
+
+ if ((iphc0 & LOWPAN_IPHC_NH_C) == 0) {
+ *hc06_ptr = hdr->nexthdr;
+ hc06_ptr += 1;
+ }
+
- skb->data, skb->len);
++ /* Hop limit
+ * if 1: compress, encoding is 01
+ * if 64: compress, encoding is 10
+ * if 255: compress, encoding is 11
+ * else do not compress
+ */
+ switch (hdr->hop_limit) {
+ case 1:
+ iphc0 |= LOWPAN_IPHC_TTL_1;
+ break;
+ case 64:
+ iphc0 |= LOWPAN_IPHC_TTL_64;
+ break;
+ case 255:
+ iphc0 |= LOWPAN_IPHC_TTL_255;
+ break;
+ default:
+ *hc06_ptr = hdr->hop_limit;
+ hc06_ptr += 1;
+ break;
+ }
+
+ /* source address compression */
+ if (is_addr_unspecified(&hdr->saddr)) {
+ pr_debug("source address is unspecified, setting SAC\n");
+ iphc1 |= LOWPAN_IPHC_SAC;
+ /* TODO: context lookup */
+ } else if (is_addr_link_local(&hdr->saddr)) {
+ iphc1 |= lowpan_compress_addr_64(&hc06_ptr,
+ LOWPAN_IPHC_SAM_BIT, &hdr->saddr, _saddr);
+ pr_debug("source address unicast link-local %pI6c "
+ "iphc1 0x%02x\n", &hdr->saddr, iphc1);
+ } else {
+ pr_debug("send the full source address\n");
+ memcpy(hc06_ptr, &hdr->saddr.s6_addr16[0], 16);
+ hc06_ptr += 16;
+ }
+
+ /* destination address compression */
+ if (is_addr_mcast(&hdr->daddr)) {
+ pr_debug("destination address is multicast: ");
+ iphc1 |= LOWPAN_IPHC_M;
+ if (lowpan_is_mcast_addr_compressable8(&hdr->daddr)) {
+ pr_debug("compressed to 1 octet\n");
+ iphc1 |= LOWPAN_IPHC_DAM_11;
+ /* use last byte */
+ *hc06_ptr = hdr->daddr.s6_addr[15];
+ hc06_ptr += 1;
+ } else if (lowpan_is_mcast_addr_compressable32(&hdr->daddr)) {
+ pr_debug("compressed to 4 octets\n");
+ iphc1 |= LOWPAN_IPHC_DAM_10;
+ /* second byte + the last three */
+ *hc06_ptr = hdr->daddr.s6_addr[1];
+ memcpy(hc06_ptr + 1, &hdr->daddr.s6_addr[13], 3);
+ hc06_ptr += 4;
+ } else if (lowpan_is_mcast_addr_compressable48(&hdr->daddr)) {
+ pr_debug("compressed to 6 octets\n");
+ iphc1 |= LOWPAN_IPHC_DAM_01;
+ /* second byte + the last five */
+ *hc06_ptr = hdr->daddr.s6_addr[1];
+ memcpy(hc06_ptr + 1, &hdr->daddr.s6_addr[11], 5);
+ hc06_ptr += 6;
+ } else {
+ pr_debug("using full address\n");
+ iphc1 |= LOWPAN_IPHC_DAM_00;
+ memcpy(hc06_ptr, &hdr->daddr.s6_addr[0], 16);
+ hc06_ptr += 16;
+ }
+ } else {
+ /* TODO: context lookup */
+ if (is_addr_link_local(&hdr->daddr)) {
+ iphc1 |= lowpan_compress_addr_64(&hc06_ptr,
+ LOWPAN_IPHC_DAM_BIT, &hdr->daddr, _daddr);
+ pr_debug("dest address unicast link-local %pI6c "
+ "iphc1 0x%02x\n", &hdr->daddr, iphc1);
+ } else {
+ pr_debug("dest address unicast %pI6c\n", &hdr->daddr);
+ memcpy(hc06_ptr, &hdr->daddr.s6_addr16[0], 16);
+ hc06_ptr += 16;
+ }
+ }
+
+ /* UDP header compression */
+ if (hdr->nexthdr == UIP_PROTO_UDP)
+ compress_udp_header(&hc06_ptr, skb);
+
+ head[0] = iphc0;
+ head[1] = iphc1;
+
+ skb_pull(skb, sizeof(struct ipv6hdr));
+ skb_reset_transport_header(skb);
+ memcpy(skb_push(skb, hc06_ptr - head), head, hc06_ptr - head);
+ skb_reset_network_header(skb);
+
+ pr_debug("header len %d skb %u\n", (int)(hc06_ptr - head), skb->len);
+
+ raw_dump_table(__func__, "raw skb data dump compressed",
++ skb->data, skb->len);
+ return 0;
+ }
+ EXPORT_SYMBOL_GPL(lowpan_header_compress);
+
+ MODULE_LICENSE("GPL");