android: Add ability to lookup IPv6 source addresses
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217d8ab81e
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294c022fae
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@ -545,6 +545,7 @@ static void charonservice_init(JNIEnv *env, jobject service, jobject builder,
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PLUGIN_PROVIDE(CUSTOM, "kernel-ipsec"),
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PLUGIN_CALLBACK(kernel_net_register, kernel_android_net_create),
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PLUGIN_PROVIDE(CUSTOM, "kernel-net"),
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PLUGIN_DEPENDS(CUSTOM, "socket"),
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PLUGIN_CALLBACK(charonservice_register, NULL),
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PLUGIN_PROVIDE(CUSTOM, "android-backend"),
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PLUGIN_DEPENDS(CUSTOM, "libcharon"),
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2012-2015 Tobias Brunner
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* Copyright (C) 2012-2016 Tobias Brunner
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* HSR 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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@ -58,10 +58,15 @@ struct private_android_net_t {
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linked_list_t *vips;
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/**
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* Socket used to determine source address
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* Socket used to determine source address (IPv4)
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*/
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int socket_v4;
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/**
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* Socket used to determine source address (IPv6)
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*/
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int socket_v6;
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/**
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* Whether the device is currently connected
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*/
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@ -116,10 +121,24 @@ METHOD(kernel_net_t, get_source_addr, host_t*,
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socklen_t addrlen;
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timeval_t now;
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job_t *job;
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int socket;
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if (dest->get_family(dest) == AF_INET)
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{
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socket = this->socket_v4;
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}
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else
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{
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socket = this->socket_v6;
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}
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if (socket < 0)
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{
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DBG1(DBG_KNL, "unable to determine src address for address family");
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return NULL;
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}
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addrlen = *dest->get_sockaddr_len(dest);
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addr.sockaddr.sa_family = AF_UNSPEC;
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if (connect(this->socket_v4, &addr.sockaddr, addrlen) < 0)
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if (connect(socket, &addr.sockaddr, addrlen) < 0)
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{
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DBG1(DBG_KNL, "failed to disconnect socket: %s", strerror(errno));
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return NULL;
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@ -129,7 +148,7 @@ METHOD(kernel_net_t, get_source_addr, host_t*,
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* at all */
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charonservice->bypass_socket(charonservice, -1, 0);
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}
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if (connect(this->socket_v4, dest->get_sockaddr(dest), addrlen) < 0)
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if (connect(socket, dest->get_sockaddr(dest), addrlen) < 0)
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{
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/* don't report an error if we are not connected (ENETUNREACH) */
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if (errno != ENETUNREACH)
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@ -159,7 +178,7 @@ METHOD(kernel_net_t, get_source_addr, host_t*,
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}
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return NULL;
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}
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if (getsockname(this->socket_v4, &addr.sockaddr, &addrlen) < 0)
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if (getsockname(socket, &addr.sockaddr, &addrlen) < 0)
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{
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DBG1(DBG_KNL, "failed to determine src address: %s", strerror(errno));
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return NULL;
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@ -276,6 +295,7 @@ METHOD(kernel_net_t, destroy, void,
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this->mutex->destroy(this->mutex);
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this->vips->destroy(this->vips);
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close(this->socket_v4);
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close(this->socket_v6);
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free(this);
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}
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@ -314,6 +334,24 @@ kernel_net_t *kernel_android_net_create()
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}
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charonservice->bypass_socket(charonservice, this->socket_v4, AF_INET);
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switch (charon->socket->supported_families(charon->socket))
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{
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case SOCKET_FAMILY_IPV6:
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case SOCKET_FAMILY_BOTH:
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this->socket_v6 = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
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if (this->socket_v6 < 0)
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{
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DBG1(DBG_KNL, "failed to create socket to lookup IPv6 src "
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"addresses: %s", strerror(errno));
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}
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charonservice->bypass_socket(charonservice, this->socket_v6,
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AF_INET6);
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break;
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default:
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this->socket_v6 = -1;
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break;
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}
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this->mutex->lock(this->mutex);
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this->network_manager->add_connectivity_cb(
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this->network_manager, (void*)connectivity_cb, this);
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