From: dw6 <dw6@270642c3-0616-0410-b53a-bc976706d245>
Date: Thu, 29 May 2008 10:51:32 +0000 (+0000)
Subject: IPv6SourceForcingDgramWriter added. this is more a proof of concept, proof of variabi... 
X-Git-Url: http://g0dil.de/git?a=commitdiff_plain;h=0d0ad213c710645ba63515cfcd0e734d8ff2f1a5;hp=45df7138999be77ea7949c6249ca973305290f48;p=senf.git

IPv6SourceForcingDgramWriter added. this is more a proof of concept, proof of variability of the writer concept than a must-have integrated part of senf

git-svn-id: https://svn.berlios.de/svnroot/repos/senf/trunk@859 270642c3-0616-0410-b53a-bc976706d245
---

diff --git a/PPI/SocketSink.cc b/PPI/SocketSink.cc
new file mode 100644
index 0000000..5c13c6c
--- /dev/null
+++ b/PPI/SocketSink.cc
@@ -0,0 +1,103 @@
+// $Id: SocketSink.cc 661 2008-02-05 09:53:54Z dw6 $
+//
+// Copyright (C) 2007
+// Fraunhofer Institute for Open Communication Systems (FOKUS)
+// Competence Center NETwork research (NET), St. Augustin, GERMANY
+//    David Wagner <dw6@berlios.de>
+//
+// 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.,
+// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+/** \file
+    \brief SocketSink non-inline non-template implementation */
+
+// Custom includes
+#include "SocketSink.hh"
+#include "../Socket/ClientSocketHandle.hh"
+
+#define prefix_
+
+prefix_ senf::ppi::IPv6SourceForcingDgramWriter::IPv6SourceForcingDgramWriter(){
+    source_ = senf::INet6Address::from_string("0::0");
+    destination_ = senf::INet6Address::from_string("0::0");
+    protocolId_ = 0; 
+}
+        
+prefix_ senf::ppi::IPv6SourceForcingDgramWriter::IPv6SourceForcingDgramWriter(senf::INet6Address sourceAddr, senf::INet6SocketAddress destAddr){
+    source(sourceAddr);
+    destination(destAddr);
+}
+
+prefix_ void senf::ppi::IPv6SourceForcingDgramWriter::source(senf::INet6Address & source){
+    source_ = source; 
+}
+prefix_ void senf::ppi::IPv6SourceForcingDgramWriter::destination(senf::INet6SocketAddress & dest){
+    destination_ = dest.address();
+    protocolId_ = dest.port();
+}
+
+prefix_ void senf::ppi::IPv6SourceForcingDgramWriter::operator()(Handle handle, Packet packet){
+    sendtoandfrom(
+            handle.fd(), 
+            reinterpret_cast<void*> (&*packet.data().begin()), 
+            packet.size(), 
+            reinterpret_cast<in6_addr*> (&destination_), 
+            protocolId_, 
+            reinterpret_cast<in6_addr*> (&source_));
+}
+
+prefix_ int senf::ppi::IPv6SourceForcingDgramWriter::sendtoandfrom(
+        int sock, 
+        const void *data, 
+        size_t dataLen, 
+        const in6_addr *dst,
+        int port, 
+        const in6_addr *src)
+{
+    uint8_t cbuf[CMSG_SPACE(sizeof(struct in6_pktinfo))];
+    struct cmsghdr *c = (struct cmsghdr *)cbuf;
+    struct in6_pktinfo *pi;
+    struct iovec iov;
+    struct msghdr h;
+
+    c->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo));
+    c->cmsg_level = IPPROTO_IPV6;
+    c->cmsg_type = IPV6_PKTINFO;
+
+    pi = (struct in6_pktinfo *)CMSG_DATA(c);
+    pi->ipi6_ifindex = 0;
+    memcpy(&pi->ipi6_addr, src, 16);
+
+    iov.iov_base = (void *)data;
+    iov.iov_len = dataLen;
+
+    sockaddr_in6 dstpeer;
+    memset(&dstpeer, 0, sizeof(dstpeer));
+    dstpeer.sin6_family = AF_INET6;
+    dstpeer.sin6_addr = *dst;
+    dstpeer.sin6_port = htons(port);
+
+    memset(&h, 0, sizeof(h));
+    h.msg_name = (struct sockaddr *)&dstpeer;
+    h.msg_namelen = sizeof(dstpeer);
+    h.msg_iov = &iov;
+    h.msg_iovlen = 1;
+    h.msg_control = c;
+    h.msg_controllen = sizeof(cbuf);
+
+    return sendmsg(sock, &h, 0);
+}
+
+#undef prefix_
diff --git a/PPI/SocketSink.hh b/PPI/SocketSink.hh
index 00ff17d..f7f61a5 100644
--- a/PPI/SocketSink.hh
+++ b/PPI/SocketSink.hh
@@ -35,6 +35,8 @@
 #include "../Socket/CommunicationPolicy.hh"
 #include "Module.hh"
 #include "Connectors.hh"
+#include "../Socket/Protocols/INet/INetAddressing.hh"
+#include "IOEvent.hh"
 
 //#include "SocketSink.mpp"
 ///////////////////////////////hh.p////////////////////////////////////////
@@ -63,6 +65,35 @@ namespace ppi {
                                              \param[in] packet Packet to write */
     };
 
+    class IPv6SourceForcingDgramWriter
+    {
+    public:
+        IPv6SourceForcingDgramWriter();
+        IPv6SourceForcingDgramWriter(senf::INet6Address sourceAddr, senf::INet6SocketAddress destAddr);
+        typedef senf::ClientSocketHandle<
+            senf::MakeSocketPolicy< senf::WriteablePolicy,
+                                    senf::DatagramFramingPolicy>::policy > Handle;
+                                        ///< Handle type supported by this writer
+        
+        void source(senf::INet6Address & source);
+        senf::INet6Address source();
+        void destination(senf::INet6SocketAddress & dest);
+        senf::INet6SocketAddress destination();
+
+        void operator()(Handle handle, Packet packet);
+                                        ///< Write \a packet to \a handle
+                                        /**< Write the complete \a packet as a datagram to \a
+                                             handle.
+                                             \param[in] handle Handle to write data to
+                                             \param[in] packet Packet to write */
+    private:
+        int sendtoandfrom(int sock, const void *data, size_t dataLen, const in6_addr *dst, int port, const in6_addr *src);
+        senf::INet6Address source_;
+        senf::INet6Address destination_;
+        unsigned int protocolId_;
+};    
+    
+    
 }}
 
 namespace senf {