Added Android plugin, currently provides DNS handling on Android
This commit is contained in:
Martin Willi
parent
63b0bc9c2d
commit
55699f037f
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@ -135,6 +135,7 @@ ARG_ENABL_SET([openssl], [enables the OpenSSL crypto plugin.])
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ARG_ENABL_SET([gcrypt], [enables the libgcrypt plugin.])
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ARG_ENABL_SET([agent], [enables the ssh-agent signing plugin.])
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ARG_ENABL_SET([uci], [enable OpenWRT UCI configuration plugin.])
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ARG_ENABL_SET([android], [enable Android specific plugin.])
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ARG_ENABL_SET([nm], [enable NetworkManager plugin.])
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ARG_ENABL_SET([vstr], [enforce using the Vstr string library to replace glibc-like printf hooks.])
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@ -554,6 +555,11 @@ if test x$uci = xtrue; then
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AC_CHECK_HEADER([uci.h],,[AC_MSG_ERROR([UCI header uci.h not found!])])
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fi
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if test x$android = xtrue; then
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AC_HAVE_LIBRARY([cutils],[LIBS="$LIBS"],[AC_MSG_ERROR([Android library libcutils not found])])
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AC_CHECK_HEADER([cutils/properties.h],,[AC_MSG_ERROR([Android header cutils/properties.h not found!])])
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fi
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if test x$nm = xtrue; then
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PKG_CHECK_EXISTS([libnm-glib],
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[PKG_CHECK_MODULES(nm, [NetworkManager gthread-2.0 libnm-glib libnm-glib-vpn])],
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@ -752,6 +758,7 @@ AM_CONDITIONAL(USE_MEDSRV, test x$medsrv = xtrue)
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AM_CONDITIONAL(USE_MEDCLI, test x$medcli = xtrue)
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AM_CONDITIONAL(USE_NM, test x$nm = xtrue)
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AM_CONDITIONAL(USE_UCI, test x$uci = xtrue)
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AM_CONDITIONAL(USE_ANDROID, test x$android = xtrue)
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AM_CONDITIONAL(USE_SMP, test x$smp = xtrue)
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AM_CONDITIONAL(USE_SQL, test x$sql = xtrue)
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AM_CONDITIONAL(USE_UPDOWN, test x$updown = xtrue)
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@ -874,6 +881,7 @@ AC_OUTPUT(
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src/charon/plugins/medcli/Makefile
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src/charon/plugins/nm/Makefile
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src/charon/plugins/uci/Makefile
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src/charon/plugins/android/Makefile
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src/charon/plugins/stroke/Makefile
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src/charon/plugins/updown/Makefile
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src/charon/plugins/attr/Makefile
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@ -261,6 +261,11 @@ if USE_RESOLVE
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PLUGINS += resolve
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endif
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if USE_ANDROID
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SUBDIRS += plugins/android
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PLUGINS += android
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endif
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if USE_UCI
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SUBDIRS += plugins/uci
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PLUGINS += uci
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@ -0,0 +1,13 @@
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INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/charon
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AM_CFLAGS = -rdynamic
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plugin_LTLIBRARIES = libstrongswan-android.la
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libstrongswan_android_la_SOURCES = \
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android_plugin.c android_plugin.h \
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android_handler.c android_handler.h
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libstrongswan_android_la_LDFLAGS = -module -avoid-version
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libstrongswan_android_la_LIBADD = -lcutils
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@ -0,0 +1,224 @@
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/*
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* Copyright (C) 2010 Martin Willi
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* Copyright (C) 2010 Tobias Brunner
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "mipv4_handler.h"
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#include <utils/linked_list.h>
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#include <cutils/properties.h>
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typedef struct private_mipv4_handler_t private_mipv4_handler_t;
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/**
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* Private data of an mipv4_handler_t object.
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*/
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struct private_mipv4_handler_t {
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/**
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* Public mipv4_handler_t interface.
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*/
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mipv4_handler_t public;
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/**
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* List of registered DNS servers
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*/
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linked_list_t *dns;
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};
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/**
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* Struct to store a pair of old and installed DNS servers
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*/
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typedef struct {
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/** installed dns server */
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host_t *dns;
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/** old dns server */
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host_t *old;
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} dns_pair_t;
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/**
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* Destroy a pair of old and installed DNS servers
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*/
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void destroy_dns_pair(dns_pair_t *this)
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{
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DESTROY_IF(this->dns);
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DESTROY_IF(this->old);
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free(this);
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}
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/**
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* Filter pairs of DNS servers
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*/
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bool filter_dns_pair(void *data, dns_pair_t **in, host_t **out)
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{
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*out = (*in)->dns;
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return TRUE;
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}
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/**
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* Read DNS server property with a given index
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*/
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host_t *get_dns_server(int index)
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{
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host_t *dns = NULL;
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char key[10], value[PROPERTY_VALUE_MAX];
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if (snprintf(key, sizeof(key), "net.dns%d", index) >= sizeof(key))
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{
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return NULL;
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}
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if (property_get(key, value, NULL) > 0)
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{
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dns = host_create_from_string(value, 0);
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}
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return dns;
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}
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/**
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* Set DNS server property with a given index
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*/
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bool set_dns_server(int index, host_t *dns)
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{
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char key[10], value[PROPERTY_VALUE_MAX];
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if (snprintf(key, sizeof(key), "net.dns%d", index) >= sizeof(key))
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{
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return FALSE;
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}
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if (dns)
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{
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if (snprintf(value, sizeof(value), "%H", dns) >= sizeof(value))
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{
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return FALSE;
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}
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}
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else
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{
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value[0] = '\0';
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}
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if (property_set(key, value) != 0)
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{
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return FALSE;
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}
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return TRUE;
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}
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METHOD(attribute_handler_t, handle, bool,
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private_mipv4_handler_t *this, identification_t *id,
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configuration_attribute_type_t type, chunk_t data)
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{
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switch (type)
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{
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case INTERNAL_IP4_DNS:
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{
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host_t *dns;
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dns_pair_t *pair;
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int index;
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dns = host_create_from_chunk(AF_INET, data, 0);
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if (dns)
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{
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pair = malloc_thing(dns_pair_t);
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pair->dns = dns;
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index = this->dns->get_count(this->dns) + 1;
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pair->old = get_dns_server(index);
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set_dns_server(index, dns);
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this->dns->insert_last(this->dns, pair);
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return TRUE;
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}
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return FALSE;
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default:
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return FALSE;
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}
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}
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METHOD(attribute_handler_t, release, void,
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private_mipv4_handler_t *this, identification_t *server,
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configuration_attribute_type_t type, chunk_t data)
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{
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if (type == INTERNAL_IP4_DNS)
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{
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enumerator_t *enumerator;
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dns_pair_t *pair;
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int index;
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enumerator = this->dns->create_enumerator(this->dns);
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for (index = 1; enumerator->enumerate(enumerator, &pair); index++)
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{
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if (chunk_equals(pair->dns->get_address(pair->dns), data))
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{
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this->dns->remove_at(this->dns, enumerator);
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set_dns_server(index, pair->old);
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destroy_dns_pair(pair);
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}
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}
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enumerator->destroy(enumerator);
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}
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}
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METHOD(enumerator_t, enumerate_dns, bool,
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enumerator_t *this, configuration_attribute_type_t *type, chunk_t *data)
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{
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*type = INTERNAL_IP4_DNS;
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*data = chunk_empty;
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/* stop enumeration */
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this->enumerate = (void*)return_false;
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return TRUE;
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}
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METHOD(attribute_handler_t, create_attribute_enumerator, enumerator_t *,
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mipv4_handler_t *this, identification_t *id, host_t *vip)
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{
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enumerator_t *enumerator;
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INIT(enumerator,
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.enumerate = (void*)_enumerate_dns,
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.destroy = (void*)free,
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);
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return enumerator;
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}
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METHOD(mipv4_handler_t, destroy, void,
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private_mipv4_handler_t *this)
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{
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this->dns->destroy_function(this->dns, (void*)destroy_dns_pair);
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free(this);
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}
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/**
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* See header
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*/
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mipv4_handler_t *mipv4_handler_create()
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{
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private_mipv4_handler_t *this;
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INIT(this,
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.public = {
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.handler = {
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.handle = _handle,
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.release = _release,
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.create_attribute_enumerator = _create_attribute_enumerator,
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},
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.destroy = _destroy,
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},
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.dns = linked_list_create(),
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);
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return &this->public;
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}
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@ -0,0 +1,50 @@
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/*
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* Copyright (C) 2010 Martin Willi
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* Copyright (C) 2010 Tobias Brunner
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup android_handler android_handler
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* @{ @ingroup android
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*/
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#ifndef ANDROID_HANDLER_H_
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#define ANDROID_HANDLER_H_
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#include <attributes/attribute_handler.h>
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typedef struct android_handler_t android_handler_t;
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/**
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* Android specific DNS attribute handler.
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*/
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struct android_handler_t {
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/**
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* Implements attribute_handler_t.
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*/
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attribute_handler_t handler;
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/**
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* Destroy a android_handler_t.
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*/
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void (*destroy)(android_handler_t *this);
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};
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/**
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* Create a android_handler instance.
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*/
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android_handler_t *android_handler_create();
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#endif /** ANDROID_HANDLER_H_ @}*/
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@ -0,0 +1,66 @@
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/*
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* Copyright (C) 2010 Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "android_plugin.h"
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#include "android_handler.h"
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#include <library.h>
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#include <daemon.h>
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typedef struct private_android_plugin_t private_android_plugin_t;
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/**
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* Private data of an android_plugin_t object.
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*/
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struct private_android_plugin_t {
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/**
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* Public android_plugin_t interface.
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*/
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android_plugin_t public;
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/**
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* Android specific DNS handler
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*/
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android_handler_t *handler;
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};
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METHOD(plugin_t, destroy, void,
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private_android_plugin_t *this)
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{
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lib->attributes->remove_handler(lib->attributes, &this->handler->handler);
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this->handler->destroy(this->handler);
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free(this);
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}
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/**
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* See header
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*/
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plugin_t *plugin_create()
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{
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private_android_plugin_t *this;
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INIT(this,
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.public.plugin = {
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.destroy = _destroy,
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},
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.handler = android_handler_create(),
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);
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lib->attributes->add_handler(lib->attributes, &this->handler->handler);
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return &this->public.plugin;
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}
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@ -0,0 +1,47 @@
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/*
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* Copyright (C) 2010 Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup android android
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* @ingroup cplugins
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*
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* @defgroup android_plugin android_plugin
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* @{ @ingroup android
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*/
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#ifndef ANDROID_PLUGIN_H_
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#define ANDROID_PLUGIN_H_
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#include <plugins/plugin.h>
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typedef struct android_plugin_t android_plugin_t;
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/**
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* Plugin providing functionality specific to the Android platform.
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*/
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struct android_plugin_t {
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/**
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* Implements plugin interface.
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*/
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plugin_t plugin;
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};
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/**
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* Create the android_plugin instance.
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*/
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plugin_t *plugin_create();
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#endif /** ANDROID_PLUGIN_H_ @}*/
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