From a6e1023d634f732e986176fcfa304c65239e0e50 Mon Sep 17 00:00:00 2001
From: Philipp Tölke <toelke@in.tum.de>
Date: Tue, 20 Jul 2010 08:17:12 +0000
Subject: Rename files to fit into the convention

---
 src/vpn/gnunet-vpn-packet.h | 114 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 src/vpn/gnunet-vpn-packet.h

(limited to 'src/vpn/gnunet-vpn-packet.h')

diff --git a/src/vpn/gnunet-vpn-packet.h b/src/vpn/gnunet-vpn-packet.h
new file mode 100644
index 000000000..c19e7a101
--- /dev/null
+++ b/src/vpn/gnunet-vpn-packet.h
@@ -0,0 +1,114 @@
+#ifndef _GNTUN_PACKET_H_
+#define _GNTUN_PACKET_H_
+
+struct pkt_tun {
+	unsigned flags:16;
+	unsigned type:16;
+};
+
+struct ip6_hdr {
+	unsigned version:4;
+	unsigned tclass:8;
+	unsigned flowlbl:20;
+	unsigned paylgth:16;
+	unsigned nxthdr:8;
+	unsigned hoplmt:8;
+	unsigned char sadr[16];
+	unsigned char dadr[16];
+};
+
+struct tcp_pkt {
+	unsigned spt:16;
+	unsigned dpt:16;
+	unsigned seq:32;
+	unsigned ack:32;
+	unsigned off:4;
+	unsigned rsv:4;
+	unsigned flg:8;
+	unsigned wsz:16;
+	unsigned crc:16;
+	unsigned urg:16;
+	unsigned char data[1];
+};
+
+struct udp_pkt {
+	unsigned spt:16;
+	unsigned dpt:16;
+	unsigned len:16;
+	unsigned crc:16;
+};
+
+struct dns_pkt {
+	unsigned short id;
+
+	unsigned rd:1; // recursion desired (client -> server)
+	unsigned tc:1; // message is truncated
+	unsigned aa:1; // authoritative answer
+	unsigned op:4; // query:0, inverse q.:1, status: 2
+	unsigned qr:1; // query:0, response:1
+
+	unsigned rcode:4; // 0 No error
+	                  // 1 Format error
+	                  // 2 Server failure
+	                  // 3 Name Error
+	                  // 4 Not Implemented
+	                  // 5 Refused
+	unsigned z:3;  // reserved
+	unsigned ra:1; // recursion available (server -> client)
+
+	unsigned short qdcount; // number of questions
+	unsigned short ancount; // number of answers
+	unsigned short nscount; // number of authority-records
+	unsigned short arcount; // number of additional records
+	unsigned char data[1];
+};
+
+struct dns_query {
+	unsigned char* name;
+	unsigned short qtype;
+	unsigned short qclass;
+};
+
+struct dns_record {
+	unsigned char* name;
+	unsigned short type;
+	unsigned short class;
+	unsigned int ttl;
+	unsigned short data_len;
+	unsigned char* data;
+};
+
+struct ip6_pkt {
+	struct pkt_tun tun;
+	struct ip6_hdr hdr;
+	unsigned char data[1];
+};
+
+struct ip6_tcp {
+	struct pkt_tun tun;
+	struct ip6_hdr hdr;
+	struct tcp_pkt data;
+};
+
+struct ip6_udp {
+	struct pkt_tun tun;
+	struct ip6_hdr hdr;
+	struct udp_pkt data;
+};
+
+void send_pkt(int fd, struct ip6_pkt* pkt);
+int recv_ipv6pkt(int fd, struct pkt_tun** pkt);
+int recv_pkt(int fd, struct pkt_tun** pkt);
+struct ip6_pkt* parse_ip6(struct pkt_tun* pkt);
+
+struct ip6_udp_dns {
+	struct ip6_udp hdr;
+	struct dns_pkt data;
+};
+
+struct ip6_tcp* parse_ip6_tcp(struct ip6_pkt*);
+struct ip6_udp* parse_ip6_udp(struct ip6_pkt*);
+
+short payload(struct ip6_hdr* pkt);
+
+#endif
-- 
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