From d549585de5399f3acd41ea66dc5351c5107c0771 Mon Sep 17 00:00:00 2001
From: Santiago Alessandri <salessandri@cert.unlp.edu.ar>
Date: Tue, 16 Aug 2011 13:53:08 -0300
Subject: [PATCH] Added BootP PDU header file. Still needs filling and
 implementation

---
 include/bootp.h      | 74 ++++++++++++++++++++++++++++++++++++++++++++
 src/packetsender.cpp |  4 +--
 2 files changed, 76 insertions(+), 2 deletions(-)
 create mode 100644 include/bootp.h

diff --git a/include/bootp.h b/include/bootp.h
new file mode 100644
index 0000000..1dc4e12
--- /dev/null
+++ b/include/bootp.h
@@ -0,0 +1,74 @@
+/*
+ * libtins is a net packet wrapper library for crafting and
+ * interpreting sniffed packets.
+ *
+ * Copyright (C) 2011 Nasel
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef __BOOTP_H
+#define __BOOTP_H
+
+#include <stdint.h>
+
+#include <stdint.h>
+
+#include "pdu.h"
+
+namespace Tins {
+
+    /**
+     * \brief Class representing a BootP packet.
+     */
+    class BootP : public PDU {
+
+    public:
+        /**
+         * \brief Enum which contains the different opcodes BootP messages.
+         */
+         enum OpCodes {
+            BOOTREQUEST = 1,
+            BOOTREPLY = 2
+         }
+
+    private:
+        /**
+         * Struct that represents the Bootp datagram.
+         */
+        struct bootp {
+            uint8_t opcode;
+            uint8_t htype;
+            uint8_t hlen;
+            uint8_t hops;
+            uint32_t xid;
+            uint16_t secs;
+            uint16_t padding;
+            uint32_t ciaddr;
+            uint32_t yiaddr;
+            uint32_t siaddr;
+            uint32_t giaddr;
+            uint8_t chaddr[16];
+            uint8_t sname[64];
+            uint8_t file[128];
+            uint8_t vend[64];
+        } __attribute__((__packed__));
+
+
+    }
+
+}
+
+#endif
diff --git a/src/packetsender.cpp b/src/packetsender.cpp
index 6dd13dd..5ba0ee9 100644
--- a/src/packetsender.cpp
+++ b/src/packetsender.cpp
@@ -106,7 +106,7 @@ bool Tins::PacketSender::send_l2(PDU *pdu, struct sockaddr* link_addr, uint32_t
     uint8_t *buffer = pdu->serialize(sz);
     bool ret_val = (sendto(sock, buffer, sz, 0, link_addr, len_addr) != -1);
     delete[] buffer;
-    
+
     return ret_val;
 }
 
@@ -150,7 +150,7 @@ Tins::PDU *Tins::PacketSender::recv_match_loop(int sock, PDU *pdu, struct sockad
         if((read = select(sock + 1, &readfds, 0, 0, &timeout)) == -1)
             return 0;
         if(FD_ISSET(sock, &readfds)) {
-            ssize_t size = recvfrom(sock, buffer, 2048, 0, link_addr, &addrlen);            
+            ssize_t size = recvfrom(sock, buffer, 2048, 0, link_addr, &addrlen);
             if(pdu->matches_response(buffer, size))
                 return pdu->clone_packet(buffer, size);
         }