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Comparing gvpe/src/connection.h (file contents):
Revision 1.28 by pcg, Sat Nov 10 05:14:22 2007 UTC vs.
Revision 1.29 by pcg, Sun Dec 2 00:09:35 2007 UTC

… …
33struct vpn; 33struct vpn;
34 34
35// called after HUP etc. to (re-)initialize global data structures 35// called after HUP etc. to (re-)initialize global data structures
36void connection_init (); 36void connection_init ();
37 37
38struct rsaid { 38struct rsaid
39{
39 u8 id[RSA_IDLEN]; // the challenge id 40 u8 id[RSA_IDLEN]; // the challenge id
40}; 41};
41 42
42typedef rsaclear rsachallenge; // challenge data; 43typedef rsaclear rsachallenge; // challenge data;
43typedef rsacrypt rsaencrdata; // encrypted challenge 44typedef rsacrypt rsaencrdata; // encrypted challenge
… …
59 60
60 void hmac_gen (crypto_ctx * ctx); 61 void hmac_gen (crypto_ctx * ctx);
61}; 62};
62 63
63struct vpn_packet : hmac_packet 64struct vpn_packet : hmac_packet
65{
66 enum ptype
64 { 67 {
65 enum ptype
66 {
67 PT_RESET = 0, 68 PT_RESET = 0,
68 PT_DATA_UNCOMPRESSED, 69 PT_DATA_UNCOMPRESSED,
69 PT_DATA_COMPRESSED, 70 PT_DATA_COMPRESSED,
70 PT_PING, PT_PONG, // wasting namespace space? ;) 71 PT_PING, PT_PONG, // wasting namespace space? ;)
71 PT_AUTH_REQ, // authentification request 72 PT_AUTH_REQ, // authentification request
72 PT_AUTH_RES, // authentification response 73 PT_AUTH_RES, // authentification response
73 PT_CONNECT_REQ, // want other node to contact me 74 PT_CONNECT_REQ, // want other node to contact me
74 PT_CONNECT_INFO, // request connection to some node 75 PT_CONNECT_INFO, // request connection to some node
75 PT_DATA_BRIDGED, // uncompressed packet with foreign mac pot. larger than path mtu 76 PT_DATA_BRIDGED, // uncompressed packet with foreign mac pot. larger than path mtu
76 PT_MAX 77 PT_MAX
77 }; 78 };
78 79
79 u8 type; 80 u8 type;
80 u8 srcdst, src1, dst1; 81 u8 srcdst, src1, dst1;
81 82
82 void set_hdr (ptype type_, unsigned int dst); 83 void set_hdr (ptype type_, unsigned int dst);
83 84
84 unsigned int src () const 85 unsigned int src () const
85 { 86 {
86 return src1 | ((srcdst >> 4) << 8); 87 return src1 | ((srcdst >> 4) << 8);
87 } 88 }
88 89
89 unsigned int dst () const 90 unsigned int dst () const
90 { 91 {
91 return dst1 | ((srcdst & 0xf) << 8); 92 return dst1 | ((srcdst & 0xf) << 8);
92 } 93 }
93 94
94 ptype typ () const 95 ptype typ () const
95 { 96 {
96 return (ptype) type; 97 return (ptype) type;
97 }
98 }; 98 }
99};
99 100
100//////////////////////////////////////////////////////////////////////////////////////// 101////////////////////////////////////////////////////////////////////////////////////////
101 102
102// a very simple fifo pkt-queue 103// a very simple fifo pkt-queue
103class pkt_queue 104class pkt_queue
104 { 105{
105 net_packet *queue[QUEUEDEPTH]; 106 net_packet *queue[QUEUEDEPTH];
106 int i, j; 107 int i, j;
107 108
108 public: 109public:
109 110
110 void put (net_packet *p); 111 void put (net_packet *p);
111 net_packet *get (); 112 net_packet *get ();
112 113
113 pkt_queue (); 114 pkt_queue ();
114 ~pkt_queue (); 115 ~pkt_queue ();
115 }; 116};
116 117
117enum 118enum
118 { 119{
119 FEATURE_COMPRESSION = 0x01, 120 FEATURE_COMPRESSION = 0x01,
120 FEATURE_ROHC = 0x02, 121 FEATURE_ROHC = 0x02,
121 FEATURE_BRIDGING = 0x04, 122 FEATURE_BRIDGING = 0x04,
122 }; 123};
123 124
124struct connection 125struct connection
125 { 126{
126 conf_node *conf; 127 conf_node *conf;
127 struct vpn *vpn; 128 struct vpn *vpn;
128 129
129 sockinfo si; // the current(!) destination ip to send packets to 130 sockinfo si; // the current(!) destination ip to send packets to
130 int retry_cnt; 131 int retry_cnt;
131 132
132 tstamp last_activity; // time of last packet received 133 tstamp last_activity; // time of last packet received
133 134
134 u32 oseqno; 135 u32 oseqno;
135 sliding_window iseqno; 136 sliding_window iseqno;
136 137
137 u8 protocol; 138 u8 protocol;
138 u8 features; 139 u8 features;
139 140
140 pkt_queue data_queue, vpn_queue; 141 pkt_queue data_queue, vpn_queue;
141 142
142 crypto_ctx *octx, *ictx; 143 crypto_ctx *octx, *ictx;
143 144
144#if ENABLE_DNS 145#if ENABLE_DNS
145 struct dns_connection *dns; 146 struct dns_connection *dns;
146 147
147 void dnsv4_reset_connection (); 148 void dnsv4_reset_connection ();
148#endif 149#endif
149 150
150 enum conf_node::connectmode connectmode; 151 enum conf_node::connectmode connectmode;
151 u8 prot_minor; // minor number of other side 152 u8 prot_minor; // minor number of other side
152 153
153 void reset_si (); 154 void reset_si ();
154 const sockinfo &forward_si (const sockinfo &si) const; 155 const sockinfo &forward_si (const sockinfo &si) const;
155 156
156 void shutdown (); 157 void shutdown ();
157 void connection_established (); 158 void connection_established ();
158 void reset_connection (); 159 void reset_connection ();
159 160
160 void establish_connection_cb (ev::timer &w, int revents); ev::timer establish_connection; 161 void establish_connection_cb (ev::timer &w, int revents); ev::timer establish_connection;
161 void rekey_cb (ev::timer &w, int revents); ev::timer rekey; // next rekying (actually current reset + reestablishing) 162 void rekey_cb (ev::timer &w, int revents); ev::timer rekey; // next rekying (actually current reset + reestablishing)
162 void keepalive_cb (ev::timer &w, int revents); ev::timer keepalive; // next keepalive probe 163 void keepalive_cb (ev::timer &w, int revents); ev::timer keepalive; // next keepalive probe
163 164
164 void send_connect_request (int id); 165 void send_connect_request (int id);
165 void send_auth_request (const sockinfo &si, bool initiate); 166 void send_auth_request (const sockinfo &si, bool initiate);
166 void send_auth_response (const sockinfo &si, const rsaid &id, const rsachallenge &chg); 167 void send_auth_response (const sockinfo &si, const rsaid &id, const rsachallenge &chg);
167 void send_connect_info (int rid, const sockinfo &rsi, u8 rprotocols); 168 void send_connect_info (int rid, const sockinfo &rsi, u8 rprotocols);
168 void send_reset (const sockinfo &dsi); 169 void send_reset (const sockinfo &dsi);
169 void send_ping (const sockinfo &dsi, u8 pong = 0); 170 void send_ping (const sockinfo &dsi, u8 pong = 0);
170 void send_data_packet (tap_packet *pkt); 171 void send_data_packet (tap_packet *pkt);
171 172
172 void inject_data_packet (tap_packet *pkt, bool broadcast = false); 173 void inject_data_packet (tap_packet *pkt, bool broadcast = false);
173 void inject_vpn_packet (vpn_packet *pkt, int tos = 0); // for forwarding 174 void inject_vpn_packet (vpn_packet *pkt, int tos = 0); // for forwarding
174 175
175 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi); 176 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi);
176 void send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos = 0); 177 void send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos = 0);
177 178
178 void script_init_env (const char *ext); 179 void script_init_env (const char *ext);
179 void script_init_connect_env (); 180 void script_init_connect_env ();
180 const char *script_node_up (); 181 const char *script_node_up ();
181 const char *script_node_down (); 182 const char *script_node_down ();
182 183
183 void dump_status (); 184 void dump_status ();
184 185
185 connection (struct vpn *vpn, conf_node *conf); 186 connection (struct vpn *vpn, conf_node *conf);
186 ~connection (); 187 ~connection ();
187 }; 188};
188 189
189#endif 190#endif
190 191

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