Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 65 insertions, 0 deletions

diff --git a/examples/pcap2nbench/ip.cpp b/examples/pcap2nbench/ip.cpp
new file mode 100644
index 0000000..8f1d821
--- /dev/null
+++ b/examples/pcap2nbench/ip.cpp
@@ -0,0 +1,65 @@
+/*\
+ *  pcap2nbench - Converts libpcap network traces to nbench input
+ *  Copyright (C) 2004  Jim McDonough <jmcd@us.ibm.com>
+ *
+ *  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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ *  Written by Anthony Liguori <aliguori@us.ibm.com>
+\*/
+
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include "ip.hpp"
+
+ip::ip(const uint8_t *data, size_t length)
+{
+  if (length < 20) {
+    std::cerr << "Invalid ip packet" << std::endl;
+  }
+
+  version = (data[0] >> 4) & 0x0F;
+  header_length = (data[0] & 0x0F) * 4;
+  dsfield = data[1];
+  memcpy(&total_length, data + 2, 2);
+  total_length = ntohs(total_length);
+  memcpy(&id, data + 4, 2);
+  id = ntohs(id);
+  flags = (data[6] >> 4) & 0x0F;
+  fragment_offset = ((data[6] & 0x0F) << 4) | data[7];
+  ttl = data[8];
+  protocol = data[9];
+  memcpy(&checksum, data + 10, 2);
+  checksum = ntohs(checksum);
+  memcpy(&source, data + 12, 4);
+  memcpy(&destination, data + 16, 4);
+}
+
+std::ostream &operator<<(std::ostream &lhs, const ip &rhs)
+{
+  lhs << "Version: " << (uint32_t)rhs.version << std::endl
+      << "Header length: " << (uint32_t)rhs.header_length << std::endl
+      << "Differentiated Services Field: " << (uint32_t)rhs.dsfield << std::endl
+      << "Total Length: " << (uint32_t)rhs.total_length << std::endl
+      << "Identification: " << (uint32_t)rhs.id << std::endl
+      << "Flags: " << (uint32_t)rhs.flags << std::endl
+      << "Fragment offset: " << (uint32_t)rhs.fragment_offset << std::endl
+      << "TTL: " << (uint32_t)rhs.ttl << std::endl
+      << "Protocol: " << (uint32_t)rhs.protocol << std::endl
+      << "Checksum: " << (uint32_t)rhs.checksum << std::endl
+      << "Source: " << inet_ntoa(*((in_addr *)&rhs.source)) << std::endl
+      << "Destination: " << inet_ntoa(*((in_addr *)&rhs.destination)) << std::endl;
+
+  return lhs;
+}