diff --git a/openair2/NETWORK_DRIVER/UE_IP/COPYING b/openair2/NETWORK_DRIVER/UE_IP/COPYING
new file mode 100755
index 0000000000000000000000000000000000000000..623b6258a134210f0b0ada106fdaab7f0370d9c5
--- /dev/null
+++ b/openair2/NETWORK_DRIVER/UE_IP/COPYING
@@ -0,0 +1,340 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
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+Foundation's software and to any other program whose authors commit to
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+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
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+Activities other than copying, distribution and modification are not
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+along with the Program.
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+You may charge a fee for the physical act of transferring a copy, and
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+ c) If the modified program normally reads commands interactively
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+ 10. If you wish to incorporate parts of the Program into other free
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+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
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+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
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+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ 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
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/openair2/NETWORK_DRIVER/UE_IP/Makefile b/openair2/NETWORK_DRIVER/UE_IP/Makefile
new file mode 100755
index 0000000000000000000000000000000000000000..76475760f9e2b3b0486c540a1edb5066236b148f
--- /dev/null
+++ b/openair2/NETWORK_DRIVER/UE_IP/Makefile
@@ -0,0 +1,100 @@
+# UE IP Driver makefile
+#
+NAS_UPDIR := $(shell /bin/pwd)
+
+KERNEL_NAME=$(shell echo `uname -r`)
+
+KERNEL_MAIN_TYPE=$(shell echo `uname -r | cut -d. -f-2 | tr "." "_"`)
+export KERNEL_MAIN_TYPE
+
+KERNEL_MAIN_VERSION=$(shell echo `uname -r | cut -d. -f-1`)
+
+ifeq ($(IS_LINUX), 1)
+SUBVERSION=$(shell echo `grep '^SUBLEVEL =' /usr/src/linux/Makefile | sed -e 's, ,,g' | sed -e 's/SUBLEVEL=//'`)
+else
+ifeq ($(IS_KERNEL_OPENAIRINTERFACE), 1)
+SUBVERSION=$(shell echo `grep '^SUBLEVEL =' /usr/src/linux-$(KERNEL_NAME)/Makefile | sed -e 's, ,,g' | sed -e 's/SUBLEVEL=//'`)
+else
+SUBVERSION=$(shell echo `grep '^SUBLEVEL =' /usr/src/linux-headers-$(KERNEL_NAME)/Makefile | sed -e 's, ,,g' | sed -e 's/SUBLEVEL=//'`)
+endif
+endif
+
+
+
+IS_KERNEL_SUBVERSION_GREATER_THAN_20=$(shell if [ $(SUBVERSION) -ge 20 ] ; then echo true ; fi)
+KERNEL_ARCH=$(shell echo `uname -m`)
+#SET_REGPARM=$(shell if [ $(KERNEL_ARCH) = 'i686' -a $(SUBVERSION) -ge 20 ]; then echo true ; fi)
+SET_X64=$(shell if [ $(KERNEL_ARCH) = 'x86_64' -a $(SUBVERSION) -ge 20 ]; then echo true ; fi)
+
+IS_KERNEL_SUBVERSION_GREATER_THAN_22=$(shell if [ $(SUBVERSION) -ge 22 ] ; then echo true ; fi)
+IS_KERNEL_SUBVERSION_GREATER_THAN_29=$(shell if [ $(SUBVERSION) -ge 29 ] ; then echo true ; fi)
+IS_KERNEL_SUBVERSION_GREATER_THAN_30=$(shell if [ $(SUBVERSION) -ge 30 ] ; then echo true ; fi)
+IS_KERNEL_SUBVERSION_GREATER_THAN_32=$(shell if [ $(SUBVERSION) -ge 32 ] ; then echo true ; fi)
+
+# Add global rule for V3 kernels
+ifeq ($(KERNEL_MAIN_VERSION),3)
+ IS_KERNEL_SUBVERSION_GREATER_THAN_22 = "true"
+ IS_KERNEL_SUBVERSION_GREATER_THAN_29 = "true"
+ IS_KERNEL_SUBVERSION_GREATER_THAN_30 = "true"
+ IS_KERNEL_SUBVERSION_GREATER_THAN_32 = "true"
+ IS_KERNEL_MAIN_VERSION_IS_3 = "true"
+endif
+
+GT2622= $(if $(IS_KERNEL_SUBVERSION_GREATER_THAN_22),-DKERNEL_VERSION_GREATER_THAN_2622=1)
+GT2629= $(if $(IS_KERNEL_SUBVERSION_GREATER_THAN_29),-DKERNEL_VERSION_GREATER_THAN_2629=1)
+GT32= $(if $(IS_KERNEL_SUBVERSION_GREATER_THAN_32),-DKERNEL_VERSION_GREATER_THAN_32=1)
+V3= $(if $(IS_KERNEL_MAIN_VERSION_IS_3),-DKERNEL_MAIN_VERSION_IS_3=1)
+####################################################
+# D E B U G F L A G S
+####################################################
+
+
+
+####################################################
+# EXTRA COMPILER FLAGS
+####################################################
+EXTRA_CFLAGS = -fno-common $(if $(IS_KERNEL_SUBVERSION_GREATER_THAN_20),-mregparm=3 -fno-stack-protector -mpreferred-stack-boundary=4) $(if $(SET_X64),-DARCH_64,) $(if $(SET_X64),-mcmodel=kernel,) $(if $(SET_X64),-m64,) $(GT2622) $(GT2629) $(V3) $(GT32)
+
+
+
+ifdef OAI_NW_DRIVER_USE_NETLINK
+EXTRA_CFLAGS += -DOAI_NW_DRIVER_USE_NETLINK
+else
+EXTRA_CFLAGS += $(shell rtai-config --module-cflags) -DRTAI -D__IN_RTAI__ -Wall
+endif
+
+
+####################################################
+# LOADABLE MODULE GOALS
+####################################################
+obj-m += ue_ip.o
+ue_ip-objs += device.o
+ue_ip-objs += common.o
+ifdef OAI_NW_DRIVER_USE_NETLINK
+ue_ip-objs += netlink.o
+endif
+
+####################################################
+# REVOIR LE CLEAN
+####################################################
+
+
+print:
+ @echo linux kernel ge 22: $(IS_KERNEL_SUBVERSION_GREATER_THAN_22)
+ @echo kernel name : $(KERNEL_NAME)
+ @echo subversion : $(SUBVERSION)
+ @echo flag gt2622: $(GT2622)
+ @echo linux kernel ge 29: $(IS_KERNEL_SUBVERSION_GREATER_THAN_29)
+ @echo flag gt2629: $(GT2629)
+ @echo linux kernel ge 30: $(IS_KERNEL_SUBVERSION_GREATER_THAN_30)
+ @echo flag KERNEL_MAIN_VERSION $(KERNEL_MAIN_VERSION)
+clean:
+ rm -f *.ko
+ rm -f .*.ko.cmd
+ rm -f .*.o.cmd
+ rm -f *.o
+ rm -f *.mod.c
+ find . -name *.ko -delete
+ find . -name .*.o -delete
+ find . -name *.o -delete
+ find . -name *.mod.c -delete
diff --git a/openair2/NETWORK_DRIVER/UE_IP/common.c b/openair2/NETWORK_DRIVER/UE_IP/common.c
new file mode 100755
index 0000000000000000000000000000000000000000..6568363db3e85fc1b0faf063c4a52ef17ea2a201
--- /dev/null
+++ b/openair2/NETWORK_DRIVER/UE_IP/common.c
@@ -0,0 +1,326 @@
+/*******************************************************************************
+
+ Eurecom OpenAirInterface 2
+ Copyright(c) 1999 - 2010 Eurecom
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope 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 St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information
+ Openair Admin: openair_admin@eurecom.fr
+ Openair Tech : openair_tech@eurecom.fr
+ Forums : http://forums.eurecom.fsr/openairinterface
+ Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France
+
+*******************************************************************************/
+
+/*! \file common.c
+* \brief
+* \author Navid Nikaein and Raymond Knopp, Lionel GAUTHIER
+* \date 2013
+* \version 1.0
+* \company Eurecom
+* \email: navid.nikaein@eurecom.fr, lionel.gauthier@eurecom.fr
+*/
+
+#include "local.h"
+#include "proto_extern.h"
+#ifndef OAI_NW_DRIVER_USE_NETLINK
+#include "rtai_fifos.h"
+#endif
+
+
+#include <linux/inetdevice.h>
+
+#include <net/tcp.h>
+#include <net/udp.h>
+
+#define NIPADDR(addr) \
+ (uint8_t)(addr & 0x000000FF), \
+ (uint8_t)((addr & 0x0000FF00) >> 8), \
+ (uint8_t)((addr & 0x00FF0000) >> 16), \
+ (uint8_t)((addr & 0xFF000000) >> 24)
+
+#define NIP6ADDR(addr) \
+ ntohs((addr)->s6_addr16[0]), \
+ ntohs((addr)->s6_addr16[1]), \
+ ntohs((addr)->s6_addr16[2]), \
+ ntohs((addr)->s6_addr16[3]), \
+ ntohs((addr)->s6_addr16[4]), \
+ ntohs((addr)->s6_addr16[5]), \
+ ntohs((addr)->s6_addr16[6]), \
+ ntohs((addr)->s6_addr16[7])
+
+
+//#define OAI_DRV_DEBUG_SEND
+//#define OAI_DRV_DEBUG_RECEIVE
+void ue_ip_common_class_wireless2ip(u16 dlen,
+ void *pdcp_sdu,
+ int inst,
+ OaiNwDrvRadioBearerId_t rb_id) {
+
+ //---------------------------------------------------------------------------
+ struct sk_buff *skb;
+ struct ipversion *ipv;
+ struct ue_ip_priv *gpriv=netdev_priv(ue_ip_dev[inst]);
+ unsigned int hard_header_len;
+ #ifdef OAI_DRV_DEBUG_RECEIVE
+ int i;
+ unsigned char *addr;
+ #endif
+ unsigned char protocol;
+ struct iphdr *network_header;
+
+ #ifdef OAI_DRV_DEBUG_RECEIVE
+ printk("[UE_IP_DRV][%s] begin RB %d Inst %d Length %d bytes\n",__FUNCTION__, rb_id,inst,dlen);
+ #endif
+
+ skb = dev_alloc_skb( dlen + 2 );
+
+ if(!skb) {
+ printk("[UE_IP_DRV][%s] low on memory\n",__FUNCTION__);
+ ++gpriv->stats.rx_dropped;
+ return;
+ }
+ skb_reserve(skb,2);
+ memcpy(skb_put(skb, dlen), pdcp_sdu,dlen);
+
+ skb->dev = ue_ip_dev[inst];
+ hard_header_len = ue_ip_dev[inst]->hard_header_len;
+
+ skb_set_mac_header(skb, 0);
+ //skb->mac_header = skb->data;
+
+ //printk("[NAC_COMMIN_RECEIVE]: Packet Type %d (%d,%d)",skb->pkt_type,PACKET_HOST,PACKET_BROADCAST);
+ skb->pkt_type = PACKET_HOST;
+
+
+ #ifdef OAI_DRV_DEBUG_RECEIVE
+ printk("[UE_IP_DRV][%s] Receiving packet of size %d from PDCP \n",__FUNCTION__, skb->len);
+
+ for (i=0;i<skb->len;i++)
+ printk("%2x ",((unsigned char *)(skb->data))[i]);
+ printk("\n");
+ #endif
+ #ifdef OAI_DRV_DEBUG_RECEIVE
+ printk("[UE_IP_DRV][%s] skb->data @ %p\n",__FUNCTION__, skb->data);
+ printk("[UE_IP_DRV][%s] skb->mac_header @ %p\n",__FUNCTION__, skb->mac_header);
+ #endif
+
+
+
+ // LG TEST skb->ip_summed = CHECKSUM_NONE;
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+
+ ipv = (struct ipversion *)&(skb->data[hard_header_len]);
+ switch (ipv->version) {
+
+ case 6:
+ #ifdef OAI_DRV_DEBUG_RECEIVE
+ printk("[UE_IP_DRV][%s] receive IPv6 message\n",__FUNCTION__);
+ #endif
+ skb_set_network_header(skb, hard_header_len);
+ //skb->network_header = &skb->data[hard_header_len];
+
+ if (hard_header_len == 0) {
+ skb->protocol = htons(ETH_P_IPV6);
+ } else {
+ #ifdef OAI_NW_DRIVER_TYPE_ETHERNET
+ skb->protocol = eth_type_trans(skb, ue_ip_dev[inst]);
+ #else
+ #endif
+ }
+ //printk("Writing packet with protocol %x\n",ntohs(skb->protocol));
+ break;
+
+ case 4:
+
+ #ifdef OAI_DRV_DEBUG_RECEIVE
+ //printk("NAS_TOOL_RECEIVE: receive IPv4 message\n");
+ addr = (unsigned char *)&((struct iphdr *)&skb->data[hard_header_len])->saddr;
+ if (addr) {
+ printk("[UE_IP_DRV][%s] Source %d.%d.%d.%d\n",__FUNCTION__, addr[0],addr[1],addr[2],addr[3]);
+ }
+ addr = (unsigned char *)&((struct iphdr *)&skb->data[hard_header_len])->daddr;
+ if (addr){
+ printk("[UE_IP_DRV][%s] Dest %d.%d.%d.%d\n",__FUNCTION__, addr[0],addr[1],addr[2],addr[3]);
+ }
+ printk("[UE_IP_DRV][%s] protocol %d\n",__FUNCTION__, ((struct iphdr *)&skb->data[hard_header_len])->protocol);
+ #endif
+
+ skb->network_header = &skb->data[hard_header_len];
+ //network_header = (struct iphdr *)skb_network_header(skb);
+ network_header = (struct iphdr *)skb_network_header(skb);
+ protocol = network_header->protocol;
+
+ #ifdef OAI_DRV_DEBUG_RECEIVE
+ switch (protocol) {
+ case IPPROTO_IP:
+ printk("[UE_IP_DRV][%s] Received Raw IPv4 packet\n",__FUNCTION__);
+ break;
+ case IPPROTO_IPV6:
+ printk("[UE_IP_DRV][%s] Received Raw IPv6 packet\n",__FUNCTION__);
+ break;
+ case IPPROTO_ICMP:
+ printk("[UE_IP_DRV][%s] Received Raw ICMP packet\n",__FUNCTION__);
+ break;
+ case IPPROTO_TCP:
+ printk("[UE_IP_DRV][%s] Received TCP packet\n",__FUNCTION__);
+ break;
+ case IPPROTO_UDP:
+ printk("[UE_IP_DRV][%s] Received UDP packet\n",__FUNCTION__);
+ break;
+ default:
+ break;
+ }
+ #endif
+
+ if (hard_header_len == 0) {
+ skb->protocol = htons(ETH_P_IP);
+ }
+ //printk("[UE_IP_DRV][COMMON] Writing packet with protocol %x\n",ntohs(skb->protocol));
+ break;
+
+ default:
+ printk("[UE_IP_DRV][%s] begin RB %d Inst %d Length %d bytes\n",__FUNCTION__,rb_id,inst,dlen);
+ printk("[UE_IP_DRV][%s] Inst %d: receive unknown message (version=%d)\n",__FUNCTION__,inst,ipv->version);
+ }
+
+ ++gpriv->stats.rx_packets;
+ gpriv->stats.rx_bytes += dlen;
+ #ifdef OAI_DRV_DEBUG_RECEIVE
+ printk("[UE_IP_DRV][%s] sending packet of size %d to kernel\n",__FUNCTION__,skb->len);
+ for (i=0;i<skb->len;i++)
+ printk("%2x ",((unsigned char *)(skb->data))[i]);
+ printk("\n");
+ #endif //OAI_DRV_DEBUG_RECEIVE
+ netif_rx(skb);
+ #ifdef OAI_DRV_DEBUG_RECEIVE
+ printk("[UE_IP_DRV][%s] end\n",__FUNCTION__);
+ #endif
+}
+
+//---------------------------------------------------------------------------
+// Delete the data
+void ue_ip_common_ip2wireless_drop(struct sk_buff *skb, int inst){
+ //---------------------------------------------------------------------------
+ struct ue_ip_priv *priv=netdev_priv(ue_ip_dev[inst]);
+ ++priv->stats.tx_dropped;
+}
+
+//---------------------------------------------------------------------------
+// Request the transfer of data (QoS SAP)
+void ue_ip_common_ip2wireless(struct sk_buff *skb, int inst){
+ //---------------------------------------------------------------------------
+ struct pdcp_data_req_header_t pdcph;
+ struct ue_ip_priv *priv=netdev_priv(ue_ip_dev[inst]);
+#ifdef LOOPBACK_TEST
+ int i;
+#endif
+#ifdef OAI_DRV_DEBUG_SEND
+ int j;
+#endif
+ unsigned int bytes_wrote;
+ // Start debug information
+#ifdef OAI_DRV_DEBUG_SEND
+ printk("[UE_IP_DRV][%s] inst %d begin \n",__FUNCTION__,inst);
+#endif
+
+ if (skb==NULL){
+#ifdef OAI_DRV_DEBUG_SEND
+ printk("[UE_IP_DRV][%s] input parameter skb is NULL \n",__FUNCTION__);
+#endif
+ return;
+ }
+
+
+ pdcph.data_size = skb->len;
+ if (skb->mark) {
+ pdcph.rb_id = skb->mark;
+ } else {
+ pdcph.rb_id = UE_IP_DEFAULT_RAB_ID;
+ }
+ pdcph.inst = inst;
+
+
+ bytes_wrote = ue_ip_netlink_send((char *)&pdcph,UE_IP_PDCPH_SIZE);
+#ifdef OAI_DRV_DEBUG_SEND
+ printk("[UE_IP_DRV][%s] Wrote %d bytes (header for %d byte skb) to PDCP via netlink\n",__FUNCTION__,
+ bytes_wrote,skb->len);
+#endif
+
+ if (bytes_wrote != UE_IP_PDCPH_SIZE)
+ {
+ printk("[UE_IP_DRV][%s] problem while writing PDCP's header (bytes wrote = %d)\n",__FUNCTION__,bytes_wrote);
+ printk("rb_id %d, Wrote %d, Header Size %d \n", pdcph.rb_id , bytes_wrote, UE_IP_PDCPH_SIZE);
+ priv->stats.tx_dropped ++;
+ return;
+ }
+
+ bytes_wrote += ue_ip_netlink_send((char *)skb->data,skb->len);
+
+
+ if (bytes_wrote != skb->len+UE_IP_PDCPH_SIZE)
+ {
+ printk("[UE_IP_DRV][%s] Inst %d, RB_ID %d: problem while writing PDCP's data, bytes_wrote = %d, Data_len %d, PDCPH_SIZE %d\n",
+ __FUNCTION__,
+ inst,
+ pdcph.rb_id,
+ bytes_wrote,
+ skb->len,
+ UE_IP_PDCPH_SIZE); // congestion
+
+ priv->stats.tx_dropped ++;
+ return;
+ }
+#ifdef OAI_DRV_DEBUG_SEND
+ printk("[UE_IP_DRV][%s] Sending packet of size %d to PDCP \n",__FUNCTION__,skb->len);
+
+ for (j=0;j<skb->len;j++)
+ printk("%2x ",((unsigned char *)(skb->data))[j]);
+ printk("\n");
+#endif
+
+ priv->stats.tx_bytes += skb->len;
+ priv->stats.tx_packets ++;
+#ifdef OAI_DRV_DEBUG_SEND
+ printk("[UE_IP_DRV][%s] end \n",__FUNCTION__);
+#endif
+}
+
+//---------------------------------------------------------------------------
+void ue_ip_common_wireless2ip(struct nlmsghdr *nlh) {
+//---------------------------------------------------------------------------
+
+ struct pdcp_data_ind_header_t *pdcph = (struct pdcp_data_ind_header_t *)NLMSG_DATA(nlh);
+ struct ue_ip_priv *priv;
+
+ priv = netdev_priv(ue_ip_dev[pdcph->inst]);
+
+
+#ifdef OAI_DRV_DEBUG_RECEIVE
+ printk("[UE_IP_DRV][%s] QOS receive from PDCP, size %d, rab %d, inst %d\n",__FUNCTION__,
+ pdcph->data_size,pdcph->rb_id,pdcph->inst);
+#endif
+
+ ue_ip_common_class_wireless2ip(pdcph->data_size,
+ (unsigned char *)NLMSG_DATA(nlh) + UE_IP_PDCPH_SIZE,
+ pdcph->inst,
+ pdcph->rb_id);
+
+}
+
diff --git a/openair2/NETWORK_DRIVER/UE_IP/constant.h b/openair2/NETWORK_DRIVER/UE_IP/constant.h
new file mode 100755
index 0000000000000000000000000000000000000000..eab1cbe012fb08a91b7a760f06b35124feb7b800
--- /dev/null
+++ b/openair2/NETWORK_DRIVER/UE_IP/constant.h
@@ -0,0 +1,67 @@
+/*******************************************************************************
+
+ Eurecom OpenAirInterface 2
+ Copyright(c) 1999 - 2010 Eurecom
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope 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 St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information
+ Openair Admin: openair_admin@eurecom.fr
+ Openair Tech : openair_tech@eurecom.fr
+ Forums : http://forums.eurecom.fsr/openairinterface
+ Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France
+
+*******************************************************************************/
+
+
+#ifndef _UE_IP_CST
+#define _UE_IP_CST
+
+#define UE_IP_MAX_LENGTH 180
+
+// General Constants
+#define UE_IP_MTU 1500
+#define UE_IP_TX_QUEUE_LEN 100
+#define UE_IP_ADDR_LEN 8
+#define UE_IP_INET6_ADDRSTRLEN 46
+#define UE_IP_INET_ADDRSTRLEN 16
+#define UE_IP_DEFAULT_RAB_ID 5
+
+#define UE_IP_RESET_RX_FLAGS 0
+
+
+#define UE_IP_RETRY_LIMIT_DEFAULT 5
+
+#define UE_IP_MESSAGE_MAXLEN 5004
+
+#define UE_IP_TIMER_ESTABLISHMENT_DEFAULT 12
+#define UE_IP_TIMER_RELEASE_DEFAULT 2
+#define UE_IP_TIMER_IDLE UINT_MAX
+#define UE_IP_TIMER_TICK HZ
+
+#define UE_IP_PDCPH_SIZE sizeof(struct pdcp_data_req_header_t)
+#define UE_IP_IPV4_SIZE 20
+#define UE_IP_IPV6_SIZE 40
+
+
+
+
+#define UE_IP_NB_INSTANCES_MAX 8
+
+
+#endif
+
diff --git a/openair2/NETWORK_DRIVER/UE_IP/device.c b/openair2/NETWORK_DRIVER/UE_IP/device.c
new file mode 100755
index 0000000000000000000000000000000000000000..a3a1ea33e1077d3d2f274e69a4f91108fb795c2a
--- /dev/null
+++ b/openair2/NETWORK_DRIVER/UE_IP/device.c
@@ -0,0 +1,403 @@
+/*******************************************************************************
+
+ Eurecom OpenAirInterface 2
+ Copyright(c) 1999 - 2010 Eurecom
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope 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 St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information
+ Openair Admin: openair_admin@eurecom.fr
+ Openair Tech : openair_tech@eurecom.fr
+ Forums : http://forums.eurecom.fsr/openairinterface
+ Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France
+
+*******************************************************************************/
+
+/*! \file device.c
+* \brief Networking Device Driver for OpenAirInterface
+* \author navid.nikaein, yan.moret(no longer valid), michelle.wetterwald(no longer valid), raymond.knopp, Lionel Gauthier
+* \company Eurecom
+* \email: raymond.knopp@eurecom.fr, navid.nikaein@eurecom.fr, lionel.gauthier@eurecom.fr
+
+*/
+/*******************************************************************************/
+
+#ifndef OAI_NW_DRIVER_USE_NETLINK
+#ifdef RTAI
+#include "rtai_posix.h"
+#define RTAI_IRQ 30 //try to get this irq with RTAI
+#endif // RTAI
+#endif // OAI_NW_DRIVER_USE_NETLINK
+
+#include "constant.h"
+#include "local.h"
+#include "proto_extern.h"
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/moduleparam.h>
+#include <asm/io.h>
+#include <asm/bitops.h>
+#include <asm/uaccess.h>
+#include <asm/segment.h>
+#include <asm/page.h>
+#include <asm/delay.h>
+#include <asm/unistd.h>
+#include <linux/netdevice.h>
+
+
+
+struct net_device *ue_ip_dev[UE_IP_NB_INSTANCES_MAX];
+
+#ifdef OAI_NW_DRIVER_USE_NETLINK
+extern void ue_ip_netlink_release(void);
+extern int ue_ip_netlink_init(void);
+#endif
+
+//---------------------------------------------------------------------------
+int ue_ip_find_inst(struct net_device *dev) {
+//---------------------------------------------------------------------------
+ int i;
+
+ for (i=0;i<UE_IP_NB_INSTANCES_MAX;i++)
+ if (ue_ip_dev[i] == dev)
+ return(i);
+ return(-1);
+}
+
+//---------------------------------------------------------------------------
+
+#ifndef OAI_NW_DRIVER_USE_NETLINK
+void *ue_ip_interrupt(void){
+ //---------------------------------------------------------------------------
+ u8 cxi;
+
+ // struct ue_ip_priv *priv=netdev_priv(dev_id);
+ // unsigned int flags;
+ // priv->lock = SPIN_LOCK_UNLOCKED;
+
+#ifdef OAI_DRV_DEBUG_INTERRUPT
+ printk("INTERRUPT - begin\n");
+#endif
+ // spin_lock_irqsave(&priv->lock,flags);
+ cxi=0;
+ // mesh_GC_receive();
+ // mesh_DC_receive(naspriv->cx+cxi);
+#ifndef OAI_NW_DRIVER_USE_NETLINK
+ ue_ip_common_wireless2ip();
+#endif
+ // spin_unlock_irqrestore(&priv->lock,flags);
+#ifdef OAI_DRV_DEBUG_INTERRUPT
+ printk("INTERRUPT: end\n");
+#endif
+ // return 0;
+}
+#endif //NETLINK
+//---------------------------------------------------------------------------
+void ue_ip_timer(unsigned long data){
+ //---------------------------------------------------------------------------
+ struct ue_ip_priv *priv=(struct ue_ip_priv *)data;
+ spin_lock(&priv->lock);
+ (priv->timer).function=ue_ip_timer;
+ (priv->timer).expires=jiffies+UE_IP_TIMER_TICK;
+ (priv->timer).data=data;
+ add_timer(&priv->timer);
+ spin_unlock(&priv->lock);
+ return;
+// add_timer(&gpriv->timer);
+// spin_unlock(&gpriv->lock);
+}
+
+//---------------------------------------------------------------------------
+// Called by ifconfig when the device is activated by ifconfig
+int ue_ip_open(struct net_device *dev){
+ //---------------------------------------------------------------------------
+ struct ue_ip_priv *priv=netdev_priv(dev);
+
+ // Address has already been set at init
+#ifndef OAI_NW_DRIVER_USE_NETLINK
+ if (pdcp_2_ue_ip_irq==-EBUSY){
+ printk("[UE_IP_DRV][%s] : irq failure\n", __FUNCTION__);
+ return -EBUSY;
+ }
+#endif //OAI_NW_DRIVER_USE_NETLINK
+
+ if(!netif_queue_stopped(dev))
+ netif_start_queue(dev);
+ else
+ netif_wake_queue(dev);
+
+ init_timer(&priv->timer);
+ (priv->timer).expires = jiffies+UE_IP_TIMER_TICK;
+ (priv->timer).data = (unsigned long)priv;
+ (priv->timer).function = ue_ip_timer;
+ //add_timer(&priv->timer);
+
+ printk("[UE_IP_DRV][%s] name = %s\n", __FUNCTION__, dev->name);
+ return 0;
+}
+
+//---------------------------------------------------------------------------
+// Called by ifconfig when the device is desactivated
+int ue_ip_stop(struct net_device *dev){
+ //---------------------------------------------------------------------------
+ struct ue_ip_priv *priv = netdev_priv(dev);
+
+ printk("[UE_IP_DRV][%s] Begin\n", __FUNCTION__);
+ del_timer(&(priv->timer));
+ netif_stop_queue(dev);
+ // MOD_DEC_USE_COUNT;
+ printk("[UE_IP_DRV][%s] End\n", __FUNCTION__);
+ return 0;
+}
+
+//---------------------------------------------------------------------------
+void ue_ip_teardown(struct net_device *dev){
+ //---------------------------------------------------------------------------
+ struct ue_ip_priv *priv;
+ int inst;
+
+ printk("[UE_IP_DRV][%s] Begin\n", __FUNCTION__);
+ if (dev) {
+ priv = netdev_priv(dev);
+ inst = ue_ip_find_inst(dev);
+ if ((inst<0) || (inst>=UE_IP_NB_INSTANCES_MAX)) {
+ printk("[UE_IP_DRV][%s] ERROR, couldn't find instance\n", __FUNCTION__);
+ return;
+ }
+
+
+ printk("[UE_IP_DRV][%s] End\n", __FUNCTION__);
+ } // check dev
+ else {
+ printk("[UE_IP_DRV][%s] Device is null\n", __FUNCTION__);
+ }
+}
+//---------------------------------------------------------------------------
+int ue_ip_set_config(struct net_device *dev, struct ifmap *map){
+ //---------------------------------------------------------------------------
+ printk("[UE_IP_DRV][%s] Begin\n", __FUNCTION__);
+ if (dev->flags & IFF_UP)
+ return -EBUSY;
+ if (map->base_addr != dev->base_addr) {
+ printk(KERN_WARNING "[UE_IP_DRV][%s] Can't change I/O address\n", __FUNCTION__);
+ return -EOPNOTSUPP;
+ }
+ if (map->irq != dev->irq)
+ dev->irq = map->irq;
+ printk("[UE_IP_DRV][%s] End\n", __FUNCTION__);
+ return 0;
+}
+
+//---------------------------------------------------------------------------
+//
+int ue_ip_hard_start_xmit(struct sk_buff *skb, struct net_device *dev){
+ //---------------------------------------------------------------------------
+ int inst;
+
+ if (dev) {
+ inst = ue_ip_find_inst(dev);
+ } else {
+ printk("[UE_IP_DRV][%s] ERROR, device is null\n", __FUNCTION__);
+ return -1;
+ }
+
+ if ((inst>=0) && (inst<UE_IP_NB_INSTANCES_MAX)) {
+ #ifdef OAI_DRV_OAI_DRV_DEBUG_DEVICE
+ printk("[UE_IP_DRV][%s] inst %d, begin\n", __FUNCTION__,inst);
+ #endif
+
+ if (!skb){
+ printk("[UE_IP_DRV][%s] input parameter skb is NULL\n", __FUNCTION__);
+ return -1;
+ }
+ // End debug information
+ netif_stop_queue(dev);
+ dev->trans_start = jiffies;
+ #ifdef OAI_DRV_DEBUG_DEVICE
+ printk("[UE_IP_DRV][%s] step 1\n", __FUNCTION__);
+ #endif
+ ue_ip_common_ip2wireless(skb,inst);
+ #ifdef OAI_DRV_DEBUG_DEVICE
+ printk("[UE_IP_DRV][%s] step 2\n", __FUNCTION__);
+ #endif
+ dev_kfree_skb(skb);
+ #ifdef OAI_DRV_DEBUG_DEVICE
+ printk("[UE_IP_DRV][%s] step 3\n", __FUNCTION__);
+ #endif
+ netif_wake_queue(dev);
+ #ifdef OAI_DRV_DEBUG_DEVICE
+ printk("[UE_IP_DRV][%s] end\n", __FUNCTION__);
+ #endif
+ } else {
+ printk("[UE_IP_DRV][%s] ERROR, couldn't find instance\n", __FUNCTION__);
+ return(-1);
+ }
+ return 0;
+}
+
+//---------------------------------------------------------------------------
+struct net_device_stats *ue_ip_get_stats(struct net_device *dev){
+//---------------------------------------------------------------------------
+ // return &((struct ue_ip_priv *)dev->priv)->stats;
+ struct ue_ip_priv *priv = netdev_priv(dev);
+ //printk("[UE_IP_DRV][%s]\n", __FUNCTION__);
+ return &priv->stats;
+}
+//---------------------------------------------------------------------------
+int ue_ip_set_mac_address(struct net_device *dev, void *mac) {
+//---------------------------------------------------------------------------
+ //struct sockaddr *addr = mac;
+ printk("[UE_IP_DRV][%s] CHANGE MAC ADDRESS UNSUPPORTED\n", __FUNCTION__);
+ //memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+ return 0;
+}
+//---------------------------------------------------------------------------
+int ue_ip_change_mtu(struct net_device *dev, int mtu){
+ //---------------------------------------------------------------------------
+ printk("[UE_IP_DRV][%s] CHANGE MTU %d bytes\n", __FUNCTION__, mtu);
+ if ((mtu<50) || (mtu>1500))
+ return -EINVAL;
+ dev->mtu = mtu;
+ return 0;
+}
+//---------------------------------------------------------------------------
+void ue_ip_change_rx_flags(struct net_device *dev, int flags){
+ //---------------------------------------------------------------------------
+ struct ue_ip_priv *priv = netdev_priv(dev);
+ printk("[UE_IP_DRV][%s] CHANGE RX FLAGS %08X\n", __FUNCTION__, flags);
+ priv->rx_flags ^= flags;
+}
+
+//---------------------------------------------------------------------------
+void ue_ip_tx_timeout(struct net_device *dev){
+ //---------------------------------------------------------------------------
+ // Transmitter timeout, serious problems.
+ struct ue_ip_priv *priv = netdev_priv(dev);
+
+ printk("[UE_IP_DRV][%s] begin\n", __FUNCTION__);
+ // (struct ue_ip_priv *)(dev->priv)->stats.tx_errors++;
+ (priv->stats).tx_errors++;
+ dev->trans_start = jiffies;
+ netif_wake_queue(dev);
+ printk("[UE_IP_DRV][%s] transmit timed out %s\n", __FUNCTION__,dev->name);
+}
+
+static const struct net_device_ops ue_ip_netdev_ops = {
+ .ndo_open = ue_ip_open,
+ .ndo_stop = ue_ip_stop,
+ .ndo_start_xmit = ue_ip_hard_start_xmit,
+ .ndo_validate_addr = NULL,
+ .ndo_get_stats = ue_ip_get_stats,
+ .ndo_set_mac_address = ue_ip_set_mac_address,
+ .ndo_set_config = ue_ip_set_config,
+ .ndo_do_ioctl = NULL,
+ .ndo_change_mtu = ue_ip_change_mtu,
+ .ndo_tx_timeout = ue_ip_tx_timeout,
+ .ndo_change_rx_flags = ue_ip_change_rx_flags,
+};
+ /*.ndo_set_multicast_list = NULL,*/
+
+//---------------------------------------------------------------------------
+// Initialisation of the network device
+void ue_ip_init(struct net_device *dev){
+ //---------------------------------------------------------------------------
+ struct ue_ip_priv *priv;
+ if (dev) {
+ priv = netdev_priv(dev);
+ memset(priv, 0, sizeof(struct ue_ip_priv));
+ spin_lock_init(&priv->lock);
+ #ifdef KERNEL_VERSION_GREATER_THAN_2629
+ dev->netdev_ops = &ue_ip_netdev_ops;
+ #else
+ #error "KERNEL VERSION MUST BE NEWER THAN 2.6.29"
+ #endif
+ dev->hard_header_len = 0;
+ dev->addr_len = UE_IP_ADDR_LEN;
+ dev->flags = IFF_BROADCAST|IFF_MULTICAST|IFF_NOARP;
+ dev->tx_queue_len = UE_IP_TX_QUEUE_LEN;
+ dev->mtu = UE_IP_MTU;
+ } else {
+ printk("[UE_IP_DRV][%s] ERROR, Device is NULL!!\n", __FUNCTION__);
+ return;
+ }
+}
+//---------------------------------------------------------------------------
+int init_module (void) {
+//---------------------------------------------------------------------------
+ int err,inst;
+ char devicename[100];
+
+
+ // Initialize parameters shared with RRC
+ printk("[UE_IP_DRV][%s] Starting OAI IP driver", __FUNCTION__);
+
+ for (inst=0;inst<UE_IP_NB_INSTANCES_MAX;inst++) {
+ printk("[UE_IP_DRV][%s] begin init instance %d\n", __FUNCTION__,inst);
+ sprintf(devicename,"oip%d",inst);
+ ue_ip_dev[inst] = alloc_netdev(sizeof(struct ue_ip_priv),devicename, ue_ip_init);
+ //netif_stop_queue(ue_ip_dev[inst]);
+ if (ue_ip_dev[inst] == NULL) {
+ printk("[UE_IP_DRV][%s][INST %02d] alloc_netdev FAILED\n", __FUNCTION__,inst);
+ } else {
+ // linux/net/core/dev.c line 4767
+ err= register_netdev(ue_ip_dev[inst]);
+ if (err){
+ printk("[UE_IP_DRV][%s] (inst %d): error %i registering device %s\n", __FUNCTION__, inst,err, ue_ip_dev[inst]->name);
+ }else{
+ printk("[UE_IP_DRV][%s] registering device %s, ifindex = %d\n\n", __FUNCTION__,ue_ip_dev[inst]->name, ue_ip_dev[inst]->ifindex);
+ }
+ }
+ }
+
+ printk("[UE_IP_DRV][%s] NETLINK INIT\n", __FUNCTION__);
+ if ((err=ue_ip_netlink_init()) == -1)
+ printk("[UE_IP_DRV][%s] NETLINK failed\n", __FUNCTION__);
+
+ return err;
+
+}
+
+//---------------------------------------------------------------------------
+void cleanup_module(void){
+//---------------------------------------------------------------------------
+ int inst;
+
+ printk("[UE_IP_DRV][CLEANUP]nasmesh_cleanup_module: begin\n");
+
+ for (inst=0;inst<UE_IP_NB_INSTANCES_MAX;inst++) {
+#ifdef OAI_DRV_DEBUG_DEVICE
+ printk("nasmesh_cleanup_module: unregister and free net device instance %d\n",inst);
+#endif
+ if (ue_ip_dev[inst]) {
+ unregister_netdev(ue_ip_dev[inst]);
+ ue_ip_teardown(ue_ip_dev[inst]);
+ free_netdev(ue_ip_dev[inst]);
+ }
+ }
+ ue_ip_netlink_release();
+ printk("nasmesh_cleanup_module: end\n");
+}
+
+#define DRV_NAME "ue_ip"
+#define DRV_VERSION "1.0"DRV_NAME
+#define DRV_DESCRIPTION "OPENAIR UE IP Device Driver"
+#define DRV_COPYRIGHT "-Copyright(c) GNU GPL Eurecom 2013"
+#define DRV_AUTHOR "Lionel GAUTHIER: <firstname.name@eurecom.fr>"DRV_COPYRIGHT
+
+
diff --git a/openair2/NETWORK_DRIVER/UE_IP/local.h b/openair2/NETWORK_DRIVER/UE_IP/local.h
new file mode 100755
index 0000000000000000000000000000000000000000..516ec51ab8b5e652822971bae5535e6f907a8223
--- /dev/null
+++ b/openair2/NETWORK_DRIVER/UE_IP/local.h
@@ -0,0 +1,111 @@
+/*******************************************************************************
+
+ Eurecom OpenAirInterface 2
+ Copyright(c) 1999 - 2010 Eurecom
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope 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 St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information
+ Openair Admin: openair_admin@eurecom.fr
+ Openair Tech : openair_tech@eurecom.fr
+ Forums : http://forums.eurecom.fsr/openairinterface
+ Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France
+
+*******************************************************************************/
+/***************************************************************************
+ local.h - description
+ -------------------
+ copyright : (C) 2002 by Eurecom
+ email : michelle.wetterwald@eurecom.fr(no longer valid)
+ yan.moret@eurecom.fr(no longer valid)
+ knopp@eurecom.fr
+ gauthier@eurecom.fr
+ ***************************************************************************
+
+ ***************************************************************************/
+
+#ifndef UE_IP_LOCAL_H
+#define UE_IP_LOCAL_H
+
+#include <linux/if_arp.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/ipv6.h>
+#include <linux/ip.h>
+#include <linux/sysctl.h>
+#include <linux/timer.h>
+#include <linux/unistd.h>
+#include <asm/param.h>
+//#include <sys/sysctl.h>
+#include <linux/udp.h>
+#include <linux/tcp.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/in.h>
+#include <net/ndisc.h>
+
+
+
+#include "constant.h"
+#include "sap.h"
+
+
+struct ue_ip_priv {
+ int irq;
+ int rx_flags;
+ struct timer_list timer;
+ spinlock_t lock;
+ struct net_device_stats stats;
+ u8 retry_limit;
+ u32 timer_establishment;
+ u32 timer_release;
+ struct sock *nl_sk;
+ u8 nlmsg[UE_IP_PRIMITIVE_MAX_LENGTH+sizeof(struct nlmsghdr)];
+ u8 xbuffer[UE_IP_PRIMITIVE_MAX_LENGTH]; // transmition buffer
+ u8 rbuffer[UE_IP_PRIMITIVE_MAX_LENGTH]; // reception buffer
+};
+
+struct ipversion {
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ u8 reserved:4,
+ version:4;
+#else
+ u8 version:4,
+ reserved:4;
+#endif
+};
+
+typedef struct pdcp_data_req_header_t {
+ unsigned int rb_id;
+ unsigned int data_size;
+ int inst;
+} pdcp_data_req_header_t;
+
+typedef struct pdcp_data_ind_header_t {
+ unsigned int rb_id;
+ unsigned int data_size;
+ int inst;
+} pdcp_data_ind_header_t;
+
+
+
+extern struct net_device *ue_ip_dev[UE_IP_NB_INSTANCES_MAX];
+
+
+#endif
diff --git a/openair2/NETWORK_DRIVER/UE_IP/netlink.c b/openair2/NETWORK_DRIVER/UE_IP/netlink.c
new file mode 100755
index 0000000000000000000000000000000000000000..c10bf3e7989e0fbbfd71c5f5b957dbf822dff0aa
--- /dev/null
+++ b/openair2/NETWORK_DRIVER/UE_IP/netlink.c
@@ -0,0 +1,248 @@
+/*******************************************************************************
+
+ Eurecom OpenAirInterface 2
+ Copyright(c) 1999 - 2010 Eurecom
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope 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 St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information
+ Openair Admin: openair_admin@eurecom.fr
+ Openair Tech : openair_tech@eurecom.fr
+ Forums : http://forums.eurecom.fsr/openairinterface
+ Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France
+
+*******************************************************************************/
+/*! \file netlink.c
+* \brief establish a netlink
+* \author Raymond knopp, and Navid Nikaein, Lionel Gauthier
+* \company Eurecom
+* \email: knopp@eurecom.fr, and navid.nikaein@eurecom.fr, lionel.gauthier@eurecom.fr
+*/
+
+//#include <linux/config.h>
+#include <linux/socket.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <net/sock.h>
+#include <linux/kthread.h>
+
+#include <linux/mutex.h>
+
+#include "local.h"
+#include "proto_extern.h"
+
+//#define NETLINK_DEBUG 1
+
+
+#define NAS_NETLINK_ID 31
+#define NL_DEST_PID 1
+
+
+static struct sock *nas_nl_sk = NULL;
+static int exit_netlink_thread=0;
+static int nas_netlink_rx_thread(void *);
+
+
+static DEFINE_MUTEX(nasmesh_mutex);
+
+static inline void nasmesh_lock(void)
+{
+ mutex_lock(&nasmesh_mutex);
+}
+
+static inline void nasmesh_unlock(void)
+{
+ mutex_unlock(&nasmesh_mutex);
+}
+
+#ifdef KERNEL_VERSION_GREATER_THAN_2629
+// This can also be implemented using thread to get the data from PDCP without blocking.
+static void nas_nl_data_ready (struct sk_buff *skb)
+{
+ // wake_up_interruptible(skb->sk->sk_sleep);
+ //nasmesh_lock();
+ //netlink_rcv_skb(skb, &my_rcv_msg);// my_rcv_msg is the call back func>
+ //nasmesh_unlock();
+
+ struct nlmsghdr *nlh = NULL;
+ if (skb) {
+#ifdef NETLINK_DEBUG
+ printk("[UE_IP_DRV][NETLINK] Received socket from PDCP\n");
+#endif //NETLINK_DEBUG
+ nlh = (struct nlmsghdr *)skb->data;
+ ue_ip_common_wireless2ip(nlh);
+ //kfree_skb(skb); // not required,
+ }
+}
+#else
+
+static struct task_struct *netlink_rx_thread;
+
+// this thread is used to avoid blocking other system calls from entering the kernel
+static int nas_netlink_rx_thread(void *data) {
+
+ int err;
+ struct sk_buff *skb = NULL;
+ struct nlmsghdr *nlh = NULL;
+
+ printk("[UE_IP_DRV][NETLINK] Starting RX Thread \n");
+
+ while (!kthread_should_stop()) {
+
+ if (nas_nl_sk) {
+ skb = skb_recv_datagram(nas_nl_sk, 0, 0, &err);
+
+ if (skb) {
+
+#ifdef NETLINK_DEBUG
+ printk("[UE_IP_DRV][NETLINK] Received socket from PDCP\n");
+#endif //NETLINK_DEBUG
+ nlh = (struct nlmsghdr *)skb->data;
+
+ nas_COMMON_QOS_receive(nlh);
+
+ skb_free_datagram(nas_nl_sk,skb);
+ }
+
+ }
+ else {
+ if (exit_netlink_thread == 1) {
+ printk("[UE_IP_DRV][NETLINK] exit_netlink_thread\n");
+ break;
+ }
+ }
+ } // while
+
+ printk("[UE_IP_DRV][NETLINK] Exiting RX thread\n");
+
+ return(0);
+
+}
+
+static void nas_nl_data_ready (struct sock *sk, int len)
+
+{
+ wake_up_interruptible(sk->sk_sleep);
+}
+#endif
+
+
+int ue_ip_netlink_init(void)
+{
+
+ printk("[UE_IP_DRV][NETLINK] Running init ...\n");
+
+
+ nas_nl_sk = netlink_kernel_create(
+#ifdef KERNEL_VERSION_GREATER_THAN_2622
+ &init_net,
+#endif
+ NAS_NETLINK_ID,
+ 0,
+ nas_nl_data_ready,
+#ifdef KERNEL_VERSION_GREATER_THAN_2622
+ &nasmesh_mutex, // NULL
+#endif
+ THIS_MODULE);
+
+
+ if (nas_nl_sk == NULL) {
+
+ printk("[UE_IP_DRV][NETLINK] netlink_kernel_create failed \n");
+ return(-1);
+ }
+
+#ifdef KERNEL_VERSION_GREATER_THAN_2629
+
+#else
+ // Create receive thread
+ netlink_rx_thread = kthread_run(nas_netlink_rx_thread, NULL, "NAS_NETLINK_RX_THREAD");
+#endif
+
+ return(0);
+
+}
+
+
+void ue_ip_netlink_release(void) {
+
+ exit_netlink_thread=1;
+ printk("[UE_IP_DRV][NETLINK] Releasing netlink socket\n");
+
+ if(nas_nl_sk){
+#ifdef KERNEL_VERSION_GREATER_THAN_2629
+ netlink_kernel_release(nas_nl_sk); //or skb->sk
+#else
+ sock_release(nas_nl_sk->sk_socket);
+#endif
+
+ }
+
+ // printk("[UE_IP_DRV][NETLINK] Removing netlink_rx_thread\n");
+ //kthread_stop(netlink_rx_thread);
+
+}
+
+
+
+
+int ue_ip_netlink_send(unsigned char *data,unsigned int len) {
+
+
+ struct sk_buff *nl_skb = alloc_skb(NLMSG_SPACE(len),GFP_ATOMIC);
+ struct nlmsghdr *nlh = (struct nlmsghdr *)nl_skb->data;
+ int status;
+
+
+ // printk("[UE_IP_DRV][NETLINK] Sending %d bytes (%d)\n",len,NLMSG_SPACE(len));
+ skb_put(nl_skb, NLMSG_SPACE(len));
+ memcpy(NLMSG_DATA(nlh),data,len);
+
+ nlh->nlmsg_len = NLMSG_SPACE(len);
+
+
+ nlh->nlmsg_pid = 0; /* from kernel */
+
+ NETLINK_CB(nl_skb).pid = 0;
+
+#ifdef NETLINK_DEBUG
+ printk("[UE_IP_DRV][NETLINK] In nas_netlink_send, nl_skb %p, nl_sk %x, nlh %p, nlh->nlmsg_len %d\n",nl_skb,nas_nl_sk,nlh,nlh->nlmsg_len);
+#endif //DEBUG_NETLINK
+
+ if (nas_nl_sk) {
+
+ // nasmesh_lock();
+ status = netlink_unicast(nas_nl_sk, nl_skb, NL_DEST_PID, MSG_DONTWAIT);
+ // mutex_unlock(&nasmesh_mutex);
+
+ if (status < 0) {
+ printk("[UE_IP_DRV][NETLINK] SEND status is %d\n",status);
+ return(0);
+ }
+ else {
+#ifdef NETLINK_DEBUG
+ printk("[UE_IP_DRV][NETLINK] SEND status is %d\n",status);
+#endif
+ return len;
+ }
+ }
+ else {
+ printk("[UE_IP_DRV][SEND] socket is NULL\n");
+ return(0);
+ }
+}
diff --git a/openair2/NETWORK_DRIVER/UE_IP/proto_extern.h b/openair2/NETWORK_DRIVER/UE_IP/proto_extern.h
new file mode 100755
index 0000000000000000000000000000000000000000..d450f2d18cfdf761602b782e35f6b2780d3fb41a
--- /dev/null
+++ b/openair2/NETWORK_DRIVER/UE_IP/proto_extern.h
@@ -0,0 +1,148 @@
+/*******************************************************************************
+
+ Eurecom OpenAirInterface 2
+ Copyright(c) 1999 - 2010 Eurecom
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope 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 St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information
+ Openair Admin: openair_admin@eurecom.fr
+ Openair Tech : openair_tech@eurecom.fr
+ Forums : http://forums.eurecom.fsr/openairinterface
+ Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France
+
+*******************************************************************************/
+/***************************************************************************
+ proto_extern.h - description
+ -------------------
+ copyright : (C) 2002 by Eurecom
+ email : michelle.wetterwald@eurecom.fr(no longer valid)
+ yan.moret@eurecom.fr(no longer valid)
+ knopp@eurecom.fr
+ gauthier@eurecom.fr
+ ***************************************************************************
+
+***************************************************************************/
+
+#ifndef _UE_IP_PROTO_H
+#define _UE_IP_PROTO_H
+
+#include <linux/if_arp.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/ipv6.h>
+#include <linux/ip.h>
+#include <linux/sysctl.h>
+#include <linux/timer.h>
+#include <asm/param.h>
+//#include <sys/sysctl.h>
+#include <linux/udp.h>
+#include <linux/tcp.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/in.h>
+#include <net/ndisc.h>
+
+#include "local.h"
+
+// device.c
+
+
+/** @defgroup _ue_ip_impl_ OAI Network Device for RRC Lite
+* @ingroup _ref_implementation_
+* @{
+\fn int ue_ip_find_inst(struct net_device *dev)
+\brief This function determines the instance id for a particular device pointer.
+@param dev Pointer to net_device structure
+ */
+int ue_ip_find_inst(struct net_device *dev);
+
+// common.c
+/**
+\fn void ue_ip_common_class_wireless2ip(unsigned short dlen, void* pdcp_sdu,int inst,struct classifier_entity *rclass,OaiNwDrvRadioBearerId_t rb_id)
+\brief Receive classified LTE packet, build skbuff struct with it and deliver it to the OS network layer.
+@param dlen Length of SDU in bytes
+@param pdcp_sdu Pointer to received SDU
+@param inst Instance number
+@param rb_id Radio Bearer Id
+ */
+void ue_ip_common_class_wireless2ip(unsigned short dlen,
+ void *pdcp_sdu,
+ int inst,
+ OaiNwDrvRadioBearerId_t rb_id);
+
+/**
+\fn void ue_ip_common_ip2wireless(struct sk_buff *skb, struct cx_entity *cx, struct classifier_entity *gc,int inst)
+\brief Request the transfer of data (QoS SAP)
+@param skb pointer to socket buffer
+@param inst device instance
+ */
+void ue_ip_common_ip2wireless(struct sk_buff *skb, int inst);
+
+/**
+\fn void ue_ip_common_ip2wireless_drop(struct sk_buff *skb, struct cx_entity *cx, struct classifier_entity *gc,int inst)
+\brief Drop the IP packet comming from the OS network layer.
+@param skb pointer to socket buffer
+@param inst device instance
+ */
+void ue_ip_common_ip2wireless_drop(struct sk_buff *skb, int inst);
+
+#ifndef OAI_NW_DRIVER_USE_NETLINK
+/**
+\fn void ue_ip_common_wireless2ip()
+\brief Retrieve PDU from PDCP through RT-fifos for delivery to the IP stack.
+ */
+void ue_ip_common_wireless2ip(void);
+#else
+/**
+\fn void ue_ip_common_wireless2ip(struct nlmsghdr *nlh)
+\brief Retrieve PDU from PDCP through netlink sockets for delivery to the IP stack.
+ */
+void ue_ip_common_wireless2ip(struct nlmsghdr *nlh);
+#endif //OAI_NW_DRIVER_USE_NETLINK
+
+
+#ifdef OAI_NW_DRIVER_USE_NETLINK
+/**
+\fn int ue_ip_netlink_send(unsigned char *data,unsigned int len)
+\brief Request the transfer of data by PDCP via netlink socket
+@param data pointer to SDU
+@param len length of SDU in bytes
+@returns Numeber of bytes transfered by netlink socket
+ */
+int ue_ip_netlink_send(unsigned char *data,unsigned int len);
+
+/**
+\fn void ue_ip_COMMON_QOS_receive(struct nlmsghdr *nlh)
+\brief Request a PDU from PDCP
+@param nlh pointer to netlink message header
+ */
+void ue_ip_COMMON_QOS_receive(struct nlmsghdr *nlh);
+
+#endif //OAI_NW_DRIVER_USE_NETLINK
+
+
+// netlink.c
+
+void ue_ip_netlink_release(void);
+int ue_ip_netlink_init(void);
+
+
+/** @} */
+#endif
diff --git a/openair2/NETWORK_DRIVER/UE_IP/sap.h b/openair2/NETWORK_DRIVER/UE_IP/sap.h
new file mode 100755
index 0000000000000000000000000000000000000000..0e67da7acd5b85a0476b490f87483fc99580a4f5
--- /dev/null
+++ b/openair2/NETWORK_DRIVER/UE_IP/sap.h
@@ -0,0 +1,7 @@
+#ifndef UE_IP_SAP_H
+#define UE_IP_SAP_H
+ typedef unsigned short OaiNwDrvRadioBearerId_t;
+
+ #define UE_IP_PRIMITIVE_MAX_LENGTH 180 // maximum length of a NAS primitive
+
+#endif