diff --git a/openair-cn/GTPV1-U/GTPURH/COPYING b/openair-cn/GTPV1-U/GTPURH/COPYING
deleted file mode 100755
index d511905c1647a1e311e8b20d5930a37a9c2531cd..0000000000000000000000000000000000000000
--- a/openair-cn/GTPV1-U/GTPURH/COPYING
+++ /dev/null
@@ -1,339 +0,0 @@
- GNU GENERAL PUBLIC LICENSE
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-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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diff --git a/openair-cn/GTPV1-U/GTPURH/INSTALL b/openair-cn/GTPV1-U/GTPURH/INSTALL
deleted file mode 100755
index 0de93a937cf3e0ab2bef2a99a01e23fbc3e640a2..0000000000000000000000000000000000000000
--- a/openair-cn/GTPV1-U/GTPURH/INSTALL
+++ /dev/null
@@ -1,33 +0,0 @@
-How to build
-------------
-
-1. Extract the files in a location of your choice. The
- Files will be extracted in a directory called gtpu.
-
-2. cd <gtpu_dir>/gtpu.
-
-3. make
-
-If make is successful, the binary files (libxt_GTPU.so and xt_GTPU.ko)
-will be created in the Bin folder.
-
-
-How to install
---------------
-There is no "make install" as that will be difficult to support all
-possible Linux distro. The cmd.sh file demonstrates how to install
-the two binary files in the system.
-
-
-In case of problem:
- - check you got the last release of the library (see README),
- - contact the mailing list (see README),
- - check the bugtracker for known bugs (see README).
-
-
-Documentation
--------------
-Please have a look at the "Architecture" section in the README.
-
-
-
diff --git a/openair-cn/GTPV1-U/GTPURH/Makefile b/openair-cn/GTPV1-U/GTPURH/Makefile
deleted file mode 100755
index 967303961213d1d592e57c52ad609387eaa1a5f8..0000000000000000000000000000000000000000
--- a/openair-cn/GTPV1-U/GTPURH/Makefile
+++ /dev/null
@@ -1,105 +0,0 @@
-####################################################################################
-# Makefile for iptables extension for the GTPU target and GTPu klm
-#
-# Copyright (c) 2010-2011 Polaris Networks
-# Author: Pradip Biswas <pradip_biswas@polarisnetworks.net>
-#
-# 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.
-#
-####################################################################################
-
-
-export BIN_DIR ?= $(shell pwd)/Bin
-KVERSION = $(shell uname -r)
-KVERSION_LAST_DIGIT = $(shell echo ${KVERSION} | cut -d "." -f 3 | cut -d "-" -f 1)
-
-obj-m = xt_GTPURH.o
-EXTRA_CFLAGS += -DKVERSION=$(KVERSION_LAST_DIGIT)
-
-all: xtlib
- echo "Building for Kernel Version: $(KVERSION_LAST_DIGIT)"
- make -C /lib/modules/$(KVERSION)/build M=$(PWD) modules
- chmod 777 xt_GTPURH.ko
- mv xt_GTPURH.ko $(BIN_DIR)/
-
-clean: libclean
- make -C /lib/modules/$(KVERSION)/build M=$(PWD) clean
-
-################################################################################
-# The next section is used by libxt_GTPURH
-################################################################################
-
-XT_IPTABLES_VERSION = $(shell /sbin/iptables -V | cut -d " " -f 2 | cut -b 2-)
-IPT_FIRST_NUM = $(shell echo ${XT_IPTABLES_VERSION} | cut -d "." -f 1 | cut -d "-" -f 1)
-IPT_SECOND_NUM = $(shell echo ${XT_IPTABLES_VERSION} | cut -d "." -f 2 | cut -d "-" -f 1)
-IPT_THIRD_NUM = $(shell echo ${XT_IPTABLES_VERSION} | cut -d "." -f 3 | cut -d "-" -f 1)
-IPTVERSION = $(IPT_FIRST_NUM)$(IPT_SECOND_NUM)$(IPT_THIRD_NUM)
-IPTABLES_VERSION_STRING = \"$(IPT_FIRST_NUM).$(IPT_SECOND_NUM).$(IPT_THIRD_NUM)\"
-
-LIB_CC := gcc
-
-ifeq ($(IPTVERSION), 135)
- LIB_LD := ld
-else
- LIB_LD := gcc
-endif
-
-LIB_CFLAGS := -fPIC -Wall -MMD -D_LARGEFILE_SOURCE=1 -D_LARGE_FILES -D_FILE_OFFSET_BITS=64 \
- -D_REENTRANT -pipe -DXTABLES_LIBDIR=\"/usr/local/libexec/xtables\" -DXTABLES_INTERNAL \
- -D_INIT=libxt_GTPURH_init -DPIC -fPIC -O2 \
- -DIPTVERSION=$(IPTVERSION) \
- -DIPTABLES_VERSION_STRING=$(IPTABLES_VERSION_STRING)
-
-XT_TARGET := xt_GTPURH
-XT_LIBNAME := lib$(XT_TARGET).so
-XT_BUILD_DIR = $(BIN_DIR)/$(XT_TARGET)
-
-# Get the system distribution type
-IsDebian=$(shell /bin/cat /proc/version | grep -i -e ubuntu -e debian)
-IsRedHat=$(shell /bin/cat /proc/version | grep -i -e centos -e "red hat" -e suse -e fedora)
-
-# Change the ipq library name for 64-bit Debian-based distributions
-ifeq ($(X86_64),x86_64)
- ifneq ($(strip $(IsDebian)),)
- LIB_IPQ=_pic
- endif
-endif
-
-INCLUDE_DIR = -I. \
- -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include \
- -I/usr/lib64/glib-2.0/include
-
-XT_SOURCES = libxt_GTPURH.c
-
-XT_OBJECTS := $(addprefix $(XT_BUILD_DIR)/, $(notdir $(XT_SOURCES:.c=.o)))
-
-xtlib: XT
-
-XT: DF = $(XT_BUILD_DIR)/$(*F)
-XT: $(XT_BUILD_DIR) $(BIN_DIR)/$(XT_LIBNAME)
-
--include $(addprefix $(XT_BUILD_DIR)/, $(notdir $(XT_SOURCES:.c=.P)))
-
-$(XT_BUILD_DIR):
- @echo Build Directory is $@
- @if [ ! -d $(BIN_DIR) ]; then mkdir $(BIN_DIR); fi
- @if [ ! -d $@ ]; then mkdir $@; fi
-
-$(BIN_DIR)/$(XT_LIBNAME): $(XT_OBJECTS)
- @echo Linking $@
- @$(LIB_LD) -shared $(XT_OBJECTS) -o $@
-
-$(XT_BUILD_DIR)/%.o : %.c
- @echo "Building GTPuRH ext for version $(IPTVERSION) $(IPTABLES_VERSION_STRING)"
- @echo Compiling $<
- @$(LIB_CC) $(LIB_CFLAGS) -MF $(DF).d $(INCLUDE_DIR) -o $@ -c $<
- @cp $(DF).d $(DF).P; \
- sed -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\$$//' \
- -e '/^$$/ d' -e 's/$$/ :/' < $(DF).d >> $(DF).P; \
- rm -f $(DF).d
-
-libclean:
- @rm -rf $(BIN_DIR)/$(XT_LIBNAME) $(XT_BUILD_DIR)
-
diff --git a/openair-cn/GTPV1-U/GTPURH/README b/openair-cn/GTPV1-U/GTPURH/README
deleted file mode 100755
index f29b8421c3ea8a9c76e26473ffb0b770a9184951..0000000000000000000000000000000000000000
--- a/openair-cn/GTPV1-U/GTPURH/README
+++ /dev/null
@@ -1,80 +0,0 @@
-Introduction
-------------
-This piece of software implementes GPRS Tunneling Protocol (GTP) for user plane.
-The software has two components - one is the extension of iptables that
-run in user-space. The other is the counterpart of the iptables extension
-that runs in kernel space.
-
-
-License
--------
-The project is licensed under GPL2+, see the COPYING and AUTHORS files for more
-details.
-
-
-Architecture
-------------
-The GTPu tunneling is handled in two parts. The first part is the user-space
-iptables target extension library (let's call it libxt). The second
-part is the GTPu kernel loadable module (let's call it gtpu). The way it
-is, once the user configures a GTPu tunnel attributes using iptables, the klm
-is loaded by the kernel automatically and handles the IP packets according to
-the GTPu tunnel attributes set by the user.
-
-The user can set the action to be taken on a matching IP packet. The action can be
-either of "add", "remove" or "transport" .
-
-A GTPu tunnel has the following attributes:
- - own IP address
- - own GTPu tunnel id
- - peer's IP address
- - peer's GTPu tunnel id
-
-The GTPU target is designed to work only on mangle table. Also, the user is
-expected to add GTPU target to the PREROUTING chain, as the GTPU target will
-modify the original IP packet before it is routed.
-
-Once the user creates the rule in iptables, the matching IP packets go through
-the gtpu klm, which acts upon the IP packet according to the action set by the
-user. The action "Add" means the klm will add a GTPu header to the IP packet.
-"Remove" will remove the GTPu header from the IP packet and "Transport" will
-do a Remove first followed by an "Add" on the IP packet.
-
-For example, consider the following command:
-
-iptables -t mangle -A PREROUTING -d 10.10.10.1 -j GTPU --own-ip 192.168.0.98 --own-tun 100 --peer-ip 192.168.0.109 --peer-tun 101 --action add
-
-This command will configure the system to add a GTPu header to any IP packet destined to 10.10.10.1.
-The source IP address outer IP will be 192.168.0.109, the dest IP will be 192.168.0.98 and
-the destination GTP tunnel id will be 101.
-
-Similarly, consider the following command:
-
-iptables -t mangle -A PREROUTING -s 192.168.0.109 -d 192.168.0.98 -p udp --dport 2152 -j GTPU --action remove
-
-This command will process all the GTPu packets coming from 192.168.0.109 to 192.168.0.98 to
-strip the GTPu header and forward the inner IP packet to the kernel's routing engine.
-
-
-Files
----------
-There are two source C files and one header file:
- - libxt_GTPU.c : source file for iptables GTPU extension library (libxt)
- - xt_GTPU.c : source file for gtpu kernel loadable module (klm)
- - xt_GTPU.h : common header file, shared between the libxt and the klm
- - Makefile : Makefile to build both the libxt and the klm
- - cmd.sh : sample cmd file to show how the binaries can be used
-
-See the INSTALL file to learn how to build the binaries.
-
-
-References
-----------
-3GPP TS 29.281 General Packet Radio System (GPRS)
- Tunnelling Protocol User Plane (GTP-u)
-
-
-Authors
--------
-Pradip Biswas <pradip_biswas@polarisnetworks.net>
-
diff --git a/openair-cn/GTPV1-U/GTPURH/RELEASE_NOTES b/openair-cn/GTPV1-U/GTPURH/RELEASE_NOTES
deleted file mode 100755
index e8617a4978113b0b2febb55bb78ca157874e08d7..0000000000000000000000000000000000000000
--- a/openair-cn/GTPV1-U/GTPURH/RELEASE_NOTES
+++ /dev/null
@@ -1,7 +0,0 @@
-
-Known issues in GTPU v1.0
--------------------------
-
-1. Does not implement the "Transport" action.
-2. Does not handle segmented GTPu packets.
-
diff --git a/openair-cn/GTPV1-U/GTPURH/cmd.sh b/openair-cn/GTPV1-U/GTPURH/cmd.sh
deleted file mode 100755
index 3230d8ca1605c4c77896de88a662e58023b5e92b..0000000000000000000000000000000000000000
--- a/openair-cn/GTPV1-U/GTPURH/cmd.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-# Clear the iptables mangle table
-iptables -t mangle -F
-
-# Remove GTPU KLM
-rmmod xt_GTPU
-
-# Insert the GTPU KLM
-insmod ./Bin/xt_GTPU.ko
-
-# Copy the userland iptables extenstion library
-if [ -d /lib/xtables ]; then
- /bin/cp -f ./Bin/libxt_GTPU.so /lib/xtables/
-fi
-
-if [ -d /lib/iptables ]; then
- /bin/cp -f ./Bin/libxt_GTPU.so /lib/iptables/libipt_GTPU.so
-fi
-
-# Some sample commands for demonstration
-iptables -t mangle -A PREROUTING -d 10.10.10.1 -j GTPU --own-ip 192.168.0.98 --own-tun 100 --peer-ip 192.168.0.109 --peer-tun 101 --action add
-iptables -t mangle -A PREROUTING -s 192.168.0.109 -d 192.168.0.98 -p udp --dport 2152 -j GTPU --action remove
diff --git a/openair-cn/GTPV1-U/GTPURH/libxt_GTPURH.c b/openair-cn/GTPV1-U/GTPURH/libxt_GTPURH.c
deleted file mode 100755
index f8538a7593e53d525960116747d88bafa7f3351f..0000000000000000000000000000000000000000
--- a/openair-cn/GTPV1-U/GTPURH/libxt_GTPURH.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/* Shared library add-on to iptables for the GTPURH target
- *
- * Copyright (c) 2010-2011 Polaris Networks
- * Author: Pradip Biswas <pradip_biswas@polarisnetworks.net>
- *
- * 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.
- *
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <getopt.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <linux/netfilter.h>
-
-#include "xt_GTPURH.h"
-
-#if (IPTVERSION <= 135)
-#include <iptables.h>
-#elif (IPTVERSION > 135)
-#include <xtables.h>
-#endif
-
-#if (IPTVERSION <= 135)
-#define GTPURH_PARAM_BAD_VALUE 0
-#define GTPURH_PARAM_ONLY_ONCE 1
-#define XT_GTPURH_VERSION IPTABLES_VERSION_STRING
-#define gtpurh_strtoui(s,v,m,M) !string_to_number(s,m,M,v)
-#define gtpurh_exit_error exit_error
-#elif (IPTVERSION > 135) && (IPTVERSION <= 141)
-#define GTPURH_PARAM_BAD_VALUE P_BAD_VALUE
-#define GTPURH_PARAM_ONLY_ONCE P_ONLY_ONCE
-#define XT_GTPURH_VERSION XTABLES_VERSION
-#define gtpurh_param_act param_act
-#define gtpurh_strtoui(s,v,m,M) !string_to_number(s,m,M,v)
-#define gtpurh_exit_error exit_error
-#elif (IPTVERSION > 141)
-#define GTPURH_PARAM_BAD_VALUE XTF_BAD_VALUE
-#define GTPURH_PARAM_ONLY_ONCE XTF_ONLY_ONCE
-#define XT_GTPURH_VERSION XTABLES_VERSION
-#define gtpurh_param_act xtables_param_act
-#define gtpurh_strtoui(s,v,m,M) xtables_strtoui(s,NULL,v,m,M)
-#define gtpurh_exit_error xtables_error
-#endif
-
-enum {
- PARAM_LADDR = 1 << 0,
- PARAM_LTUN = 1 << 1,
- PARAM_RADDR = 1 << 2,
- PARAM_RTUN = 1 << 3,
- PARAM_ACTION = 1 << 4,
-};
-
-static void GTPURH_help(void)
-{
- printf(
- "GTPUAH target options\n"
- " --action value Set action <value: remove>\n"
- " --own-ip value Set own IP address\n"
- " --own-tun value Set own tunnel id <value: 1-2^31>\n"
- " --peer-ip value Set peer IP address\n"
- " --peer-tun value Set peer tunnel id <value: 1-2^31>\n");
-}
-
-#if (IPTVERSION <= 135)
-/* Stolen from iptables v1.4.7 code */
-void gtpurh_param_act(unsigned int status, const char *p1, ...)
-{
- const char *p2, *p3;
- va_list args;
- int b;
-
- va_start(args, p1);
-
- switch (status) {
- case GTPURH_PARAM_ONLY_ONCE:
- p2 = va_arg(args, const char *);
- b = va_arg(args, unsigned int);
-
- if (!b)
- return;
-
- exit_error(PARAMETER_PROBLEM,
- "%s: \"%s\" option may only be specified once",
- p1, p2);
- break;
-
- case GTPURH_PARAM_BAD_VALUE:
- p2 = va_arg(args, const char *);
- p3 = va_arg(args, const char *);
- exit_error(PARAMETER_PROBLEM,
- "%s: Bad value for \"%s\" option: \"%s\"",
- p1, p2, p3);
- break;
-
- default:
- exit_error(status, "%s", "Unknown error");
- break;
- }
-
- va_end(args);
-}
-
-#endif
-
-static void parse_gtpurh_addr(const char *s, struct xt_gtpurh_target_info *info, int flag)
-{
- in_addr_t addr;
-
- if ((addr = inet_addr(s)) == -1) {
- switch (flag) {
- case PARAM_LADDR:
- gtpurh_param_act(GTPURH_PARAM_BAD_VALUE, "GTPURH", "--own-ip", s);
- break;
-
- case PARAM_RADDR:
- gtpurh_param_act(GTPURH_PARAM_BAD_VALUE, "GTPURH", "--peer-ip", s);
- break;
- }
- }
-
- switch (flag) {
- case PARAM_LADDR:
- info->laddr = addr;
- break;
-
- case PARAM_RADDR:
- info->raddr = addr;
- break;
- }
-}
-
-static void parse_gtpurh_tunid(char *s, struct xt_gtpurh_target_info *info, int flag)
-{
- unsigned int value;
-
- if (!gtpurh_strtoui(s, &value, 0, UINT32_MAX)) {
- switch (flag) {
- case PARAM_LTUN:
- gtpurh_param_act(GTPURH_PARAM_BAD_VALUE, "GTPURH", "--own-tun", s);
- break;
-
- case PARAM_RTUN:
- gtpurh_param_act(GTPURH_PARAM_BAD_VALUE, "GTPURH", "--peer-tun", s);
- break;
- }
- }
-
- switch (flag) {
- case PARAM_LTUN:
- info->ltun = value;
- break;
-
- case PARAM_RTUN:
- info->rtun = value;
- break;
- }
-}
-
-
-static void parse_gtpurh_action(char *s, struct xt_gtpurh_target_info *info, unsigned int *flags)
-{
- if (!strcmp(s, "remove")) {
- info->action = PARAM_GTPURH_ACTION_REM;
- *flags |= PARAM_GTPURH_ACTION_REM;
- } else {
- gtpurh_param_act(GTPURH_PARAM_BAD_VALUE, "GTPURH", "--action", s);
- }
-}
-
-#if (IPTVERSION <= 135)
-static int
-GTPURH_parse(int c, char **argv, int invert, unsigned int *flags,
- const struct ipt_entry *entry,
- struct ipt_entry_target **target)
-#else
-static int
-GTPURH_parse(int c, char **argv, int invert, unsigned int *flags,
- const void *entry, struct xt_entry_target **target)
-#endif
-{
- struct xt_gtpurh_target_info *info = (struct xt_gtpurh_target_info *) (*target)->data;
-
- switch (c) {
- case '1':
- gtpurh_param_act(GTPURH_PARAM_ONLY_ONCE, "GTPURH", "--own-ip", *flags & PARAM_LADDR);
- parse_gtpurh_addr(optarg, info, PARAM_LADDR);
- *flags |= PARAM_LADDR;
- return 1;
-
- case '2':
- gtpurh_param_act(GTPURH_PARAM_ONLY_ONCE, "GTPURH", "--own-tun", *flags & PARAM_LTUN);
- parse_gtpurh_tunid(optarg, info, PARAM_LTUN);
- *flags |= PARAM_LTUN;
- return 1;
-
- case '3':
- gtpurh_param_act(GTPURH_PARAM_ONLY_ONCE, "GTPURH", "--peer-ip", *flags & PARAM_RADDR);
- parse_gtpurh_addr(optarg, info, PARAM_RADDR);
- *flags |= PARAM_RADDR;
- return 1;
-
- case '4':
- gtpurh_param_act(GTPURH_PARAM_ONLY_ONCE, "GTPURH", "--peer-tun", *flags & PARAM_RTUN);
- parse_gtpurh_tunid(optarg, info, PARAM_RTUN);
- *flags |= PARAM_RTUN;
- return 1;
-
- case '5':
- gtpurh_param_act(GTPURH_PARAM_ONLY_ONCE, "GTPURH", "--action", *flags & PARAM_ACTION);
- parse_gtpurh_action(optarg, info, flags);
- *flags |= PARAM_ACTION;
- return 1;
- }
-
- return 1;
-}
-
-static void GTPURH_check(unsigned int flags)
-{
- if (!(flags & PARAM_ACTION)) {
- gtpurh_exit_error(PARAMETER_PROBLEM, "GTPURH: You must specify action");
- }
-
- if (!(flags & PARAM_LADDR)) {
- gtpurh_exit_error(PARAMETER_PROBLEM, "GTPURH: You must specify local addr");
- }
-
- if (!(flags & PARAM_LTUN)) {
- gtpurh_exit_error(PARAMETER_PROBLEM, "GTPURH: You must specify local tunnel id");
- }
-
- if (!(flags & PARAM_RADDR)) {
- gtpurh_exit_error(PARAMETER_PROBLEM, "GTPURH: You must specify remote addr");
- }
-
- if (!(flags & PARAM_RTUN)) {
- gtpurh_exit_error(PARAMETER_PROBLEM, "GTPURH: You must specify remote tunnel id");
- }
-}
-
-static void convert_action_to_string(int action, char *actionstr)
-{
- switch(action) {
- case PARAM_GTPURH_ACTION_REM:
- sprintf (actionstr, "remove");
- break;
-
- default :
- sprintf (actionstr, "unspecified!!!");
- break;
- }
-}
-
-#if (IPTVERSION <= 135)
-static void
-GTPURH_print(const struct ipt_ip *ip,
- const struct ipt_entry_target *target,
- int numeric)
-
-#else
-static void
-GTPURH_print(const void *ip,
- const struct xt_entry_target *target,
- int numeric)
-#endif
-{
- const struct xt_gtpurh_target_info *info =
- (struct xt_gtpurh_target_info *) target->data;
-
- char laddr[64], raddr[64], actionstr[32];
-
- convert_action_to_string(info->action, actionstr);
-
- if (info->action == PARAM_GTPURH_ACTION_REM) {
- printf("GTPURH action: %s", actionstr);
- return;
- }
-}
-
-static struct option GTPURH_opts[] = {
- { "own-ip", 1, NULL, '1' },
- { "own-tun", 1, NULL, '2' },
- { "peer-ip", 1, NULL, '3' },
- { "peer-tun", 1, NULL, '4' },
- { "action", 1, NULL, '5' },
- { .name = NULL }
-};
-
-#if (IPTVERSION <= 135)
-static struct iptables_target gtpurh_tg_reg = {
-#else
-static struct xtables_target gtpurh_tg_reg = {
-#endif
- .name = "GTPURH",
- .version = XT_GTPURH_VERSION,
-#if (IPTVERSION > 135)
- .family = NFPROTO_IPV4,
-#endif
- .size = XT_ALIGN(sizeof(struct xt_gtpurh_target_info)),
- .userspacesize = XT_ALIGN(sizeof(struct xt_gtpurh_target_info)),
- .help = GTPURH_help,
- .parse = GTPURH_parse,
- .final_check = GTPURH_check,
- .print = GTPURH_print,
- .extra_opts = GTPURH_opts,
-};
-
-void _init(void)
-{
-#if (IPTVERSION <= 135)
- register_target(>purh_tg_reg);
-#else
- xtables_register_target(>purh_tg_reg);
-#endif
-}
-
diff --git a/openair-cn/GTPV1-U/GTPURH/xt_GTPURH.c b/openair-cn/GTPV1-U/GTPURH/xt_GTPURH.c
deleted file mode 100755
index e1d29643408ca04109624d05496098e43a8de0e1..0000000000000000000000000000000000000000
--- a/openair-cn/GTPV1-U/GTPURH/xt_GTPURH.c
+++ /dev/null
@@ -1,650 +0,0 @@
-/*
- * GTPu klm for Linux/iptables
- *
- * Copyright (c) 2010-2011 Polaris Networks
- * Author: Pradip Biswas <pradip_biswas@polarisnetworks.net>
- *
- * 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.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/ip.h>
-#include <linux/in.h>
-#include <linux/icmp.h>
-#include <linux/if_ether.h>
-#include <linux/route.h>
-#include <net/checksum.h>
-#include <net/ip.h>
-#include <net/udp.h>
-#include <net/inet_sock.h>
-#include <net/route.h>
-#include <linux/netfilter/x_tables.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE)
-# define WITH_IPV6 1
-#endif
-#include "xt_GTPURH.h"
-#if !(defined KVERSION)
-#error "Kernel version is not defined!!!! Exiting."
-#endif
-
-//#define TRACE_IN_KERN_LOG 1
-#define TRACE_ICMP_IN_KERN_LOG 1
-
-#if defined(TRACE_IN_KERN_LOG)
-#define PR_INFO(fORMAT, aRGS...) pr_info(fORMAT, ##aRGS)
-#else
-#define PR_INFO(fORMAT, aRGS...)
-#endif
-//-----------------------------------------------------------------------------
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Pradip Biswas <pradip_biswas@polarisnetworks.net>");
-MODULE_DESCRIPTION("GTPu Data Path extension on netfilter");
-//-----------------------------------------------------------------------------
-static char* _gtpurh_nf_inet_hook_2_string(int nf_inet_hookP);
-static inline bool _gtpurh_ip_is_fragment(const struct iphdr *iph_p);
-static void _gtpurh_print_hex_octets(unsigned char* data_pP, unsigned short sizeP);
-static unsigned int _gtpurh_tg4_rem(struct sk_buff *orig_skb_pP, const struct xt_action_param *par_pP);
-#if defined(WITH_IPV6)
-static unsigned int gtpurh_tg6(struct sk_buff *skb_pP, const struct xt_action_param *par_pP);
-#endif
-static unsigned int gtpurh_tg4(struct sk_buff *skb_pP, const struct xt_action_param *par_pP);
-//-----------------------------------------------------------------------------
-//#define ROUTE_PACKET 1
-#define NEW_SKB 1
-
-#define GTPURH_HDR_PNBIT 1
-#define GTPURH_HDR_SBIT 1 << 1
-#define GTPURH_HDR_EBIT 1 << 2
-#define GTPURH_ANY_EXT_HDR_BIT (GTPURH_HDR_PNBIT | GTPURH_HDR_SBIT | GTPURH_HDR_EBIT)
-#define GTPURH_FAILURE 1
-#define GTPURH_SUCCESS !GTPURH_FAILURE
-#define GTPURH_PORT 2152
-#define GTPURH_2_PRINT_BUFFER_LEN 8192
-#define NIPADDR(addr) \
- (uint8_t)(addr & 0x000000FF), \
- (uint8_t)((addr & 0x0000FF00) >> 8), \
- (uint8_t)((addr & 0x00FF0000) >> 16), \
- (uint8_t)((addr & 0xFF000000) >> 24)
-//-----------------------------------------------------------------------------
-static char _gtpurh_print_buffer[GTPURH_2_PRINT_BUFFER_LEN];
-
-static struct xt_target gtpurh_tg_reg[] __read_mostly = {
- {
- .name = "GTPURH",
- .revision = 0,
- .family = NFPROTO_IPV4,
- .hooks = (1 << NF_INET_PRE_ROUTING) |
- (1 << NF_INET_LOCAL_OUT),
- .proto = IPPROTO_UDP,
- .table = "raw",
- .target = gtpurh_tg4,
- .targetsize = sizeof(struct xt_gtpurh_target_info),
- .me = THIS_MODULE,
- },
-#if defined(WITH_IPV6)
- {
- .name = "GTPURH",
- .revision = 0,
- .family = NFPROTO_IPV6,
- .proto = IPPROTO_UDP,
- .table = "raw",
- .target = gtpurh_tg6,
- .me = THIS_MODULE,
- },
-#endif
-};
-
-struct gtpuhdr {
- char flags;
- char msgtype;
- u_int16_t length;
- u_int32_t tunid;
-};
-
-//-----------------------------------------------------------------------------
-static char*
-_gtpurh_icmph_type_2_string(uint8_t typeP)
-//-----------------------------------------------------------------------------
-{
- switch (typeP) {
- case ICMP_ECHOREPLY:return "ECHOREPLY";break;
- case ICMP_DEST_UNREACH:return "DEST_UNREACH";break;
- case ICMP_SOURCE_QUENCH:return "SOURCE_QUENCH";break;
- case ICMP_REDIRECT:return "REDIRECT";break;
- case ICMP_ECHO:return "ECHO";break;
- case ICMP_TIME_EXCEEDED:return "TIME_EXCEEDED";break;
- case ICMP_PARAMETERPROB:return "PARAMETERPROB";break;
- case ICMP_TIMESTAMP:return "TIMESTAMP";break;
- case ICMP_TIMESTAMPREPLY:return "TIMESTAMPREPLY";break;
- case ICMP_INFO_REQUEST:return "INFO_REQUEST";break;
- case ICMP_INFO_REPLY:return "INFO_REPLY";break;
- case ICMP_ADDRESS:return "ADDRESS";break;
- case ICMP_ADDRESSREPLY:return "ADDRESSREPLY";break;
- default:return "TYPE?";
- }
-}
-//-----------------------------------------------------------------------------
-static char*
-_gtpurh_nf_inet_hook_2_string(int nf_inet_hookP)
-//-----------------------------------------------------------------------------
-{
- switch (nf_inet_hookP) {
- case NF_INET_PRE_ROUTING:
- return "NF_INET_PRE_ROUTING";
- break;
-
- case NF_INET_LOCAL_IN:
- return "NF_INET_LOCAL_IN";
- break;
-
- case NF_INET_FORWARD:
- return "NF_INET_FORWARD";
- break;
-
- case NF_INET_LOCAL_OUT:
- return "NF_INET_LOCAL_OUT";
- break;
-
- case NF_INET_POST_ROUTING:
- return "NF_INET_POST_ROUTING";
- break;
-
- default:
- return "NF_INET_UNKNOWN";
- }
-}
-
-//-----------------------------------------------------------------------------
-static inline bool
-_gtpurh_ip_is_fragment(const struct iphdr *iph_p)
-{
- //-----------------------------------------------------------------------------
- return (iph_p->frag_off & htons(IP_MF | IP_OFFSET)) != 0;
-}
-
-//-----------------------------------------------------------------------------
-void _gtpurh_print_hex_octets(unsigned char* data_pP, unsigned short sizeP)
-//-----------------------------------------------------------------------------
-{
- unsigned long octet_index = 0;
- unsigned long buffer_marker = 0;
- unsigned char aindex;
- struct timeval tv;
- char timeofday[64];
- unsigned int h,m,s;
-
- if (data_pP == NULL) {
- return;
- }
-
- if (sizeP > 2000) {
- return;
- }
-
- do_gettimeofday(&tv);
- h = (tv.tv_sec/3600) % 24;
- m = (tv.tv_sec / 60) % 60;
- s = tv.tv_sec % 60;
- snprintf(timeofday, 64, "%02d:%02d:%02d.%06ld", h,m,s,tv.tv_usec);
-
- buffer_marker+=snprintf(&_gtpurh_print_buffer[buffer_marker], GTPURH_2_PRINT_BUFFER_LEN - buffer_marker,"%s------+-------------------------------------------------+\n",timeofday);
- buffer_marker+=snprintf(&_gtpurh_print_buffer[buffer_marker], GTPURH_2_PRINT_BUFFER_LEN - buffer_marker,"%s | 0 1 2 3 4 5 6 7 8 9 a b c d e f |\n",timeofday);
- buffer_marker+=snprintf(&_gtpurh_print_buffer[buffer_marker], GTPURH_2_PRINT_BUFFER_LEN - buffer_marker,"%s------+-------------------------------------------------+\n",timeofday);
- pr_info("%s",_gtpurh_print_buffer);
- buffer_marker = 0;
-
- for (octet_index = 0; octet_index < sizeP; octet_index++) {
- if ((octet_index % 16) == 0) {
- if (octet_index != 0) {
- buffer_marker+=snprintf(&_gtpurh_print_buffer[buffer_marker], GTPURH_2_PRINT_BUFFER_LEN - buffer_marker, " |\n");
- pr_info("%s",_gtpurh_print_buffer);
- buffer_marker = 0;
- }
-
- buffer_marker+=snprintf(&_gtpurh_print_buffer[buffer_marker], GTPURH_2_PRINT_BUFFER_LEN - buffer_marker, "%s %04ld |",timeofday, octet_index);
- }
-
- /*
- * Print every single octet in hexadecimal form
- */
- buffer_marker+=snprintf(&_gtpurh_print_buffer[buffer_marker], GTPURH_2_PRINT_BUFFER_LEN - buffer_marker, " %02x", data_pP[octet_index]);
- /*
- * Align newline and pipes according to the octets in groups of 2
- */
- }
-
- /*
- * Append enough spaces and put final pipe
- */
- for (aindex = octet_index; aindex < 16; ++aindex)
- buffer_marker+=snprintf(&_gtpurh_print_buffer[buffer_marker], GTPURH_2_PRINT_BUFFER_LEN - buffer_marker, " ");
-
- //SGI_IF_DEBUG(" ");
- buffer_marker+=snprintf(&_gtpurh_print_buffer[buffer_marker], GTPURH_2_PRINT_BUFFER_LEN - buffer_marker, " |\n");
- pr_info("%s",_gtpurh_print_buffer);
-}
-
-
-#if defined(ROUTE_PACKET)
-//-----------------------------------------------------------------------------
-static bool _gtpurh_route_packet(struct sk_buff *skb_pP, const struct xt_gtpurh_target_info *info_pP)
-//-----------------------------------------------------------------------------
-{
- int err = 0;
- struct rtable *rt = NULL;
- struct iphdr *iph_p = ip_hdr(skb_pP);
- int daddr = iph_p->daddr;
- struct flowi fl = {
- .u = {
- .ip4 = {
- .daddr = daddr,
- .flowi4_tos = RT_TOS(iph_p->tos),
- .flowi4_scope = RT_SCOPE_UNIVERSE,
- }
- }
- };
- //skb_pP->pkt_type = PACKET_OTHERHOST;
- skb_pP->pkt_type = PACKET_OUTGOING;
-#if 0
- pr_info("GTPURH(%d): Routing packet: %d.%d.%d.%d --> %d.%d.%d.%d Proto: %d, Len: %d Mark: %u Packet type: %u\n",
- info_pP->action,
- iph_p->saddr & 0xFF,
- (iph_p->saddr & 0x0000FF00) >> 8,
- (iph_p->saddr & 0x00FF0000) >> 16,
- iph_p->saddr >> 24,
- iph_p->daddr & 0xFF,
- (iph_p->daddr & 0x0000FF00) >> 8,
- (iph_p->daddr & 0x00FF0000) >> 16,
- iph_p->daddr >> 24,
- iph_p->protocol,
- ntohs(iph_p->tot_len),
- skb_pP->mark,
- skb_pP->pkt_type);
-#endif
- rt = ip_route_output_key(&init_net, &fl.u.ip4);
-
- if (rt == null) {
- pr_info("GTPURH: Failed to route packet to dst 0x%x. Error: (%d)\n", fl.u.ip4.daddr, err);
- return GTPURH_FAILURE;
- }
-
-#if 0
-
- if (rt->dst.dev) {
- pr_info("GTPURH: dst dev name %s\n", rt->dst.dev->name);
- } else {
- pr_info("GTPURH: dst dev NULL\n");
- }
-
-#endif
-
- skb_pP->priority = rt_tos2priority(iph_p->tos);
- skb_dst_drop(skb_pP);
- skb_dst_set(skb_pP, &rt->dst);
- skb_pP->dev = skb_dst(skb_pP)->dev;
-
- // Send the GTPu message out
- ip_local_out(skb_pP);
-
- if (err == 0) {
- return GTPURH_SUCCESS;
- } else {
- return GTPURH_FAILURE;
- }
-}
-#endif
-
-//-----------------------------------------------------------------------------
-static unsigned int
-_gtpurh_tg4_rem(struct sk_buff *orig_skb_pP, const struct xt_action_param *par_pP)
-{
- //-----------------------------------------------------------------------------
-
- struct iphdr *iph_p = ip_hdr(orig_skb_pP);
- struct iphdr *iph2_p = NULL;
- struct udphdr *udph_p = NULL;
- struct gtpuhdr *gtpuh_p = NULL;
- struct sk_buff *skb_p = NULL;
-#if defined(NEW_SKB)
- struct sk_buff *new_skb_p = NULL;
- struct iphdr *new_ip_p = NULL;
-#endif
-#if defined(TRACE_ICMP_IN_KERN_LOG)
- struct icmphdr *icmph_p = NULL;
-#endif
- uint16_t gtp_payload_size = 0;
-
- /* Create a new copy of the original skb_p...can't avoid :-( LG: WHY???*/
-#if defined(ROUTE_PACKET)
- skb_p = skb_copy(orig_skb_pP, GFP_ATOMIC);
-
- if (skb_p == NULL) {
- return NF_ACCEPT;
- }
-
- skb_p->skb_iif = orig_skb_pP->skb_iif;
- PR_INFO("GTPURH: skb protocol %04X\n", orig_skb_pP->protocol);
- skb_p->protocol = orig_skb_pP->protocol;
-#else
- skb_p = orig_skb_pP;
-
- if (skb_linearize(skb_p) < 0) {
- PR_INFO("GTPURH: skb DROPPED (no linearize)\n");
- return NF_DROP;
- }
-
-#endif
-
- //---------------------------
- // check if is GTPU TUNNEL
- if (iph_p->protocol != IPPROTO_UDP) {
- PR_INFO("GTPURH: skb DROPPED Not GTPV1U packet (not UDP)\n");
- return NF_ACCEPT;
- }
-
- //---------------------------
- // check if is fragment
- // but should not happen since MTU should have been set bigger than 1500 + GTP encap.
- // TO DO later segment, but did not succeed in getting in this target all framents of an ip packet!
- if (_gtpurh_ip_is_fragment(iph_p)) {
- PR_INFO("GTPURH: ip_is_fragment YES, FLAGS %04X & %04X = %04X\n",
- iph_p->frag_off,
- htons(IP_MF | IP_OFFSET),
- iph_p->frag_off & htons(IP_MF | IP_OFFSET));
- return NF_ACCEPT;
- }
-
- if (skb_p->len <= sizeof (struct udphdr) + sizeof (struct gtpuhdr) + sizeof (struct iphdr)) {
- PR_INFO("GTPURH: Thought was GTPV1U packet but too short length\n");
- return NF_ACCEPT;
- }
-
- /* Remove IP header */
- udph_p = (struct udphdr*)skb_pull(skb_p, (iph_p->ihl << 2));
-
- if (udph_p->dest != htons(GTPURH_PORT)) {
- PR_INFO("GTPURH: Not GTPV1U packet (bad UDP dest port)\n");
- skb_push(skb_p, (iph_p->ihl << 2));
- return NF_ACCEPT;
- }
-
- /* Remove UDP header */
- gtpuh_p = (struct gtpuhdr*)skb_pull(skb_p, sizeof(struct udphdr));
- gtp_payload_size = ntohs(gtpuh_p->length);
-
- skb_p->mark = ntohl(gtpuh_p->tunid);
- /* Remove GTPu header */
- skb_pull(skb_p, sizeof(struct gtpuhdr));
-
- /* If additional fields are present in header, remove them also */
- if (gtpuh_p->flags & GTPURH_ANY_EXT_HDR_BIT) {
- PR_INFO("GTPURH: GTPURH_ANY_EXT_HDR_BIT found\n");
- skb_pull(skb_p, sizeof(short) + sizeof(char) + sizeof(char)); /* #Seq, #N-PDU, #ExtHdr Type */
- gtp_payload_size = gtp_payload_size - sizeof(short) - sizeof(char) - sizeof(char);
- }
-
- skb_set_network_header(skb_p, 0);
- iph2_p = ip_hdr(skb_p);
- skb_set_transport_header(skb_p, iph2_p->ihl << 2);
-
-
- if ((iph2_p->version != 4 ) && (iph2_p->version != 6)) {
- PR_INFO("\nGTPURH: Decapsulated packet dropped because not IPvx protocol see all GTPU packet here:\n");
- _gtpurh_print_hex_octets((unsigned char*)iph_p, ntohs(iph_p->tot_len));
- return NF_DROP;
- }
-
-#if 0
-
- if ((skb_p->mark == 0) || (gtp_payload_size != ntohs(iph2_p->tot_len))) {
- pr_info("\nGTPURH: Decapsulated packet: %d.%d.%d.%d --> %d.%d.%d.%d Proto: %d, Total Len (IP): %u mark %u Frag offset %u Flags 0x%0x\n",
- iph2_p->saddr & 0xFF,
- (iph2_p->saddr & 0x0000FF00) >> 8,
- (iph2_p->saddr & 0x00FF0000) >> 16,
- iph2_p->saddr >> 24,
- iph2_p->daddr & 0xFF,
- (iph2_p->daddr & 0x0000FF00) >> 8,
- (iph2_p->daddr & 0x00FF0000) >> 16,
- iph2_p->daddr >> 24,
- iph2_p->protocol,
- ntohs(iph2_p->tot_len),
- skb_p->mark,
- ntohs(iph_p->frag_off) & 0x1FFFFFFF,
- ntohs(iph_p->frag_off) >> 13);
-
- if (gtp_payload_size != ntohs(iph2_p->tot_len)) {
- pr_info("GTPURH: Mismatch in lengths GTPU length: %u -> %u, IP length %u\n",
- ntohs(gtpuh_p->length),
- gtp_payload_size,
- ntohs(iph2_p->tot_len));
-
- _gtpurh_print_hex_octets((unsigned char*)iph_p, ntohs(iph_p->tot_len));
- return NF_DROP;
- }
- }
-
-#endif
-
- /* Route the packet */
-#if defined(ROUTE_PACKET)
- _gtpurh_route_packet(skb_p, tgi_pP);
- return NF_DROP;
-#else
- {
- int err = 0;
- struct rtable *rt = NULL;
- int daddr = iph2_p->daddr;
- struct flowi fl = {
- .u = {
- .ip4 = {
- .daddr = daddr,
- .flowi4_tos = RT_TOS(iph2_p->tos),
- .flowi4_scope = RT_SCOPE_UNIVERSE,
- }
- }
- };
- rt = ip_route_output_key(&init_net, &fl.u.ip4);
-
- if (rt == NULL) {
- PR_INFO("GTPURH: Failed to route packet to dst 0x%x. Error: (%d)\n", fl.u.ip4.daddr, err);
- return NF_DROP;
- }
-
-
- if (rt->dst.dev) {
- PR_INFO("GTPURH: dst dev name %s\n", rt->dst.dev->name);
- } else {
- pr_info("GTPURH: dst dev NULL\n");
- return NF_DROP;
- }
-
- skb_p->priority = rt_tos2priority(iph2_p->tos);
- skb_p->pkt_type = PACKET_OTHERHOST;
- skb_dst_drop(skb_p);
- skb_dst_set(skb_p, dst_clone(&rt->dst));
- skb_p->dev = skb_dst(skb_p)->dev;
-
-#if defined(NEW_SKB)
- new_skb_p = alloc_skb(LL_MAX_HEADER + ntohs(iph2_p->tot_len), GFP_ATOMIC);
-
- if (new_skb_p == NULL) {
- return NF_DROP;
- }
-
- skb_reserve(new_skb_p, LL_MAX_HEADER + ntohs(iph2_p->tot_len));
- new_skb_p->protocol = skb_p->protocol;
-
- new_ip_p = (void *)skb_push(new_skb_p, ntohs(iph2_p->tot_len) - (iph2_p->ihl << 2));
- skb_reset_transport_header(new_skb_p);
- new_ip_p = (void *)skb_push(new_skb_p, iph2_p->ihl << 2);
- memcpy(new_ip_p, iph2_p, ntohs(iph2_p->tot_len));
- skb_reset_network_header(new_skb_p);
- skb_reset_inner_network_header(new_skb_p);
- skb_reset_inner_transport_header(new_skb_p);
-
- new_skb_p->mark = ntohl(gtpuh_p->tunid);
- //new_skb_p->mark = skb_p->mark;
-
- /* ip_route_me_harder expects skb->dst to be set */
- skb_dst_set(new_skb_p, dst_clone(skb_dst(skb_p)));
-
- /*if (ip_route_me_harder(new_skb_p, RTN_UNSPEC) < 0) {
- pr_info("GTPURH: cannot route harder dest 0x%x\n", daddr);
- goto free_skb;
- }*/
-
- new_ip_p->ttl = new_ip_p->ttl -1; // ip4_dst_hoplimit(skb_dst(new_skb_p));
- new_skb_p->ip_summed = CHECKSUM_NONE;
-
- if (new_skb_p->len > dst_mtu(skb_dst(new_skb_p))) {
- PR_INFO("GTPURH: bad length\n");
- goto free_skb;
- }
-
- nf_ct_attach(new_skb_p, skb_p);
- /*pr_info("GTPURH: ip_local_out %s/%s dev %s src %u.%u.%u.%u dst %u.%u.%u.%u\n",
- _gtpurh_nf_inet_hook_2_string(par_pP->hooknum),
- gtpurh_tg_reg[0].table,
- (new_skb_p->dev == NULL) ? "NULL" : new_skb_p->dev->name,
- NIPADDR(new_ip_p->saddr),
- NIPADDR(new_ip_p->daddr));*/
-#if defined(TRACE_ICMP_IN_KERN_LOG)
- if (new_ip_p->protocol == IPPROTO_ICMP) {
- icmph_p = (struct icmphdr*)((uint8_t*)new_ip_p + (new_ip_p->ihl << 2));
- if ((icmph_p->type == ICMP_ECHOREPLY) || (icmph_p->type == ICMP_ECHO)) {
- pr_info("GTPURH: %s/%s ICMP src %u.%u.%u.%u dst %u.%u.%u.%u %s id %04X seq %u\n",
- _gtpurh_nf_inet_hook_2_string(par_pP->hooknum),gtpurh_tg_reg[0].table,
- NIPADDR(new_ip_p->saddr),
- NIPADDR(new_ip_p->daddr),
- _gtpurh_icmph_type_2_string(icmph_p->type),
- ntohs(icmph_p->un.echo.id),
- ntohs(icmph_p->un.echo.sequence));
- }
- }
-#endif
- ip_local_out(new_skb_p);
- return NF_DROP;
-free_skb:
- pr_info("GTPURH: Dropped skb ip_local_out %s/%s\n",
- _gtpurh_nf_inet_hook_2_string(par_pP->hooknum),
- gtpurh_tg_reg[0].table);
- kfree_skb(new_skb_p);
- return NF_DROP;
-
-#else
-
- return NF_ACCEPT;
-free_skb:
- pr_info("GTPURH: Dropped skb\n");
- kfree_skb(skb_p);
- return NF_DROP;
-#endif
- }
-#endif
-}
-
-
-#if defined(WITH_IPV6)
-//-----------------------------------------------------------------------------
-static unsigned int
-gtpurh_tg6(struct sk_buff *skb_pP, const struct xt_action_param *par_pP)
-//-----------------------------------------------------------------------------
-{
- const struct xt_gtpurh_target_info *tgi_p = par_pP->targinfo;
- int result = NF_DROP;
-
- if (tgi_p == NULL) {
- return result;
- }
-
- if (tgi_p->action == PARAM_GTPURH_ACTION_REM) {
- result = NF_DROP; // TO DO
- }
-
- return result;
-}
-#endif
-
-//-----------------------------------------------------------------------------
-static unsigned int
-gtpurh_tg4(struct sk_buff *skb_pP, const struct xt_action_param *par_pP)
-//-----------------------------------------------------------------------------
-{
- const struct iphdr *iph_p = ip_hdr(skb_pP);
- const struct rtable *rt_p = skb_rtable(skb_pP);
- const struct xt_gtpurh_target_info *tgi_p = par_pP->targinfo;
-
- if (tgi_p == NULL) {
- return NF_ACCEPT;
- }
-
- if ((tgi_p->raddr != iph_p->saddr) || (tgi_p->laddr != iph_p->daddr)) {
- pr_info("GTPURH: Not processed because of not matching saddr %d.%d.%d.%d raddr %d.%d.%d.%d laddr %d.%d.%d.%d daddr %d.%d.%d.%d\n",
- NIPADDR(tgi_p->raddr),
- NIPADDR(iph_p->saddr),
- NIPADDR(tgi_p->laddr),
- NIPADDR(iph_p->daddr));
- return NF_ACCEPT;
- }
-
- if (ip_hdrlen(skb_pP) != sizeof(struct iphdr)) {
- pr_info("GTPURH: Dropped because IP options\n");
- return NF_DROP;
- }
-
- // Drop fragments
- if (iph_p->frag_off & htons(IP_OFFSET)) {
- pr_info("GTPURH: Dropped because is fragment\n");
- return NF_DROP;
- }
-
- if (tgi_p->action == PARAM_GTPURH_ACTION_REM) {
- return _gtpurh_tg4_rem(skb_pP, par_pP);
- }
-
- return NF_DROP;
-}
-
-
-//-----------------------------------------------------------------------------
-static int
-__init gtpurh_tg_init(void)
-{
- //-----------------------------------------------------------------------------
-
- pr_info("GTPURH: Initializing module (KVersion: %d)\n", KVERSION);
- pr_info("GTPURH: Copyright Polaris Networks 2010-2011\n");
- pr_info("GTPURH: Modified by EURECOM Lionel GAUTHIER 2014\n");
-#ifndef CMAKER
- pr_info("GTPURH: Compiled %s at time %s\n",__DATE__,__TIME__);
-#endif
-#if defined(WITH_IPV6)
- pr_info("GTPURH: IPv4/IPv6 enabled\n");
-#else
- pr_info("GTPURH: IPv4 only enabled\n");
-#endif
- return xt_register_targets(gtpurh_tg_reg, ARRAY_SIZE(gtpurh_tg_reg));
-}
-
-//-----------------------------------------------------------------------------
-static void
-__exit gtpurh_tg_exit(void)
-{
- //-----------------------------------------------------------------------------
-
- xt_unregister_targets(gtpurh_tg_reg, ARRAY_SIZE(gtpurh_tg_reg));
- pr_info("GTPURH: Unloading module\n");
-}
-
-module_init(gtpurh_tg_init);
-module_exit(gtpurh_tg_exit);
-MODULE_ALIAS("ipt6_GTPURH");
-MODULE_ALIAS("ipt_GTPURH");
-
diff --git a/openair-cn/GTPV1-U/GTPURH/xt_GTPURH.h b/openair-cn/GTPV1-U/GTPURH/xt_GTPURH.h
deleted file mode 100755
index 86559bff0ce4ce4bf0323aba2a1cdf9b83cc0d7c..0000000000000000000000000000000000000000
--- a/openair-cn/GTPV1-U/GTPURH/xt_GTPURH.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* Shared header file for iptables extension for the GTPU target and GTPu KLM
- *
- * Copyright (c) 2010-2011 Polaris Networks
- * Author: Pradip Biswas <pradip_biswas@polarisnetworks.net>
- *
- * 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.
- *
- */
-
-enum xt_gtpurh_mode_ {
- PARAM_GTPURH_ACTION_REM = 1 << 9,
-};
-
-struct xt_gtpurh_target_info {
- u_int32_t laddr __attribute__((aligned(8)));
- u_int32_t raddr __attribute__((aligned(8)));
- u_int32_t ltun __attribute__((aligned(8)));
- u_int32_t rtun __attribute__((aligned(8)));
- u_int32_t action __attribute__((aligned(8)));
-};
-
-