1 #ifndef _GNTUN_PACKET_H_
2 #define _GNTUN_PACKET_H_
4 #include "gnunet-vpn-helper-p.h"
5 #include "gnunet_common.h"
9 unsigned flags:16 GNUNET_PACKED;
10 unsigned type:16 GNUNET_PACKED;
14 unsigned version:4 GNUNET_PACKED;
15 unsigned tclass:8 GNUNET_PACKED;
16 unsigned flowlbl:20 GNUNET_PACKED;
17 unsigned paylgth:16 GNUNET_PACKED;
18 unsigned nxthdr:8 GNUNET_PACKED;
19 unsigned hoplmt:8 GNUNET_PACKED;
20 unsigned char sadr[16];
21 unsigned char dadr[16];
25 unsigned hdr_lngth:4 GNUNET_PACKED;
26 unsigned version:4 GNUNET_PACKED;
28 unsigned diff_serv:8 GNUNET_PACKED;
29 unsigned tot_lngth:16 GNUNET_PACKED;
31 unsigned ident:16 GNUNET_PACKED;
32 unsigned flags:3 GNUNET_PACKED;
33 unsigned frag_off:13 GNUNET_PACKED;
35 unsigned ttl:8 GNUNET_PACKED;
36 unsigned proto:8 GNUNET_PACKED;
37 unsigned chks:16 GNUNET_PACKED;
39 unsigned sadr:32 GNUNET_PACKED;
40 unsigned dadr:32 GNUNET_PACKED;
44 unsigned spt:16 GNUNET_PACKED;
45 unsigned dpt:16 GNUNET_PACKED;
46 unsigned seq:32 GNUNET_PACKED;
47 unsigned ack:32 GNUNET_PACKED;
48 unsigned off:4 GNUNET_PACKED;
49 unsigned rsv:4 GNUNET_PACKED;
50 unsigned flg:8 GNUNET_PACKED;
51 unsigned wsz:16 GNUNET_PACKED;
52 unsigned crc:16 GNUNET_PACKED;
53 unsigned urg:16 GNUNET_PACKED;
57 unsigned spt:16 GNUNET_PACKED;
58 unsigned dpt:16 GNUNET_PACKED;
59 unsigned len:16 GNUNET_PACKED;
60 unsigned crc:16 GNUNET_PACKED;
65 unsigned short id GNUNET_PACKED;
67 unsigned rd:1 GNUNET_PACKED; // recursion desired (client -> server)
68 unsigned tc:1 GNUNET_PACKED; // message is truncated
69 unsigned aa:1 GNUNET_PACKED; // authoritative answer
70 unsigned op:4 GNUNET_PACKED; // query:0, inverse q.:1, status: 2
71 unsigned qr:1 GNUNET_PACKED; // query:0, response:1
73 unsigned rcode:4 GNUNET_PACKED; // 0 No error
79 unsigned z:3 GNUNET_PACKED; // reserved
80 unsigned ra:1 GNUNET_PACKED; // recursion available (server -> client)
82 unsigned short qdcount GNUNET_PACKED; // number of questions
83 unsigned short ancount GNUNET_PACKED; // number of answers
84 unsigned short nscount GNUNET_PACKED; // number of authority-records
85 unsigned short arcount GNUNET_PACKED; // number of additional records
90 unsigned char data[1];
93 struct dns_pkt_parsed {
95 struct dns_query** queries;
96 struct dns_record** answers;
97 struct dns_record** nameservers;
98 struct dns_record** additional;
101 struct dns_query_line {
103 unsigned short class;
108 unsigned char namelen;
109 unsigned short qtype;
110 unsigned short qclass;
113 struct dns_record_line {
115 unsigned short class;
117 unsigned short data_len;
123 unsigned char namelen;
125 unsigned short class;
127 unsigned short data_len;
132 struct udp_pkt udp_hdr;
138 struct GNUNET_MessageHeader shdr;
143 struct GNUNET_MessageHeader shdr;
145 struct ip6_hdr ip6_hdr;
146 unsigned char data[1];
150 struct GNUNET_MessageHeader shdr;
152 struct ip6_hdr ip6_hdr;
153 struct tcp_pkt tcp_hdr;
154 unsigned char data[1];
158 struct GNUNET_MessageHeader shdr;
160 struct ip6_hdr ip6_hdr;
161 struct udp_pkt udp_hdr;
162 unsigned char data[1];
166 struct GNUNET_MessageHeader shdr;
168 struct ip6_hdr ip6_hdr;
169 struct udp_dns udp_dns;
173 struct GNUNET_MessageHeader shdr;
175 struct ip_hdr ip_hdr;
176 unsigned char data[1];
180 struct GNUNET_MessageHeader shdr;
182 struct ip_hdr ip_hdr;
183 struct udp_pkt udp_hdr;
184 unsigned char data[1];
187 struct GNUNET_MessageHeader shdr;
189 struct ip_hdr ip_hdr;
190 struct udp_dns udp_dns;