ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/gvpe/src/connection.h
(Generate patch)

Comparing gvpe/src/connection.h (file contents):
Revision 1.26 by pcg, Fri Jun 3 05:07:31 2005 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
76 PT_DATA_BRIDGED, // uncompressed packet with foreign mac pot. larger than path mtu
75 PT_MAX 77 PT_MAX
76 }; 78 };
77 79
78 u8 type; 80 u8 type;
79 u8 srcdst, src1, dst1; 81 u8 srcdst, src1, dst1;
80 82
81 void set_hdr (ptype type_, unsigned int dst); 83 void set_hdr (ptype type_, unsigned int dst);
82 84
83 unsigned int src () const 85 unsigned int src () const
84 { 86 {
85 return src1 | ((srcdst >> 4) << 8); 87 return src1 | ((srcdst >> 4) << 8);
86 } 88 }
87 89
88 unsigned int dst () const 90 unsigned int dst () const
89 { 91 {
90 return dst1 | ((srcdst & 0xf) << 8); 92 return dst1 | ((srcdst & 0xf) << 8);
91 } 93 }
92 94
93 ptype typ () const 95 ptype typ () const
94 { 96 {
95 return (ptype) type; 97 return (ptype) type;
96 }
97 }; 98 }
99};
98 100
99//////////////////////////////////////////////////////////////////////////////////////// 101////////////////////////////////////////////////////////////////////////////////////////
100 102
101// a very simple fifo pkt-queue 103// a very simple fifo pkt-queue
102class pkt_queue 104class pkt_queue
103 { 105{
104 net_packet *queue[QUEUEDEPTH]; 106 net_packet *queue[QUEUEDEPTH];
105 int i, j; 107 int i, j;
106 108
107 public: 109public:
108 110
109 void put (net_packet *p); 111 void put (net_packet *p);
110 net_packet *get (); 112 net_packet *get ();
111 113
112 pkt_queue (); 114 pkt_queue ();
113 ~pkt_queue (); 115 ~pkt_queue ();
114 }; 116};
115 117
116enum 118enum
117 { 119{
118 FEATURE_COMPRESSION = 0x01, 120 FEATURE_COMPRESSION = 0x01,
119 FEATURE_ROHC = 0x02, 121 FEATURE_ROHC = 0x02,
120 }; 122 FEATURE_BRIDGING = 0x04,
123};
121 124
122struct connection 125struct connection
123 { 126{
124 conf_node *conf; 127 conf_node *conf;
125 struct vpn *vpn; 128 struct vpn *vpn;
126 129
127 sockinfo si; // the current(!) destination ip to send packets to 130 sockinfo si; // the current(!) destination ip to send packets to
128 int retry_cnt; 131 int retry_cnt;
129 132
130 tstamp last_activity; // time of last packet received 133 tstamp last_activity; // time of last packet received
131 134
132 u32 oseqno; 135 u32 oseqno;
133 sliding_window iseqno; 136 sliding_window iseqno;
134 137
135 u8 protocol; 138 u8 protocol;
136 u8 features; 139 u8 features;
137 140
138 pkt_queue data_queue, vpn_queue; 141 pkt_queue data_queue, vpn_queue;
139 142
140 crypto_ctx *octx, *ictx; 143 crypto_ctx *octx, *ictx;
141 144
142#if ENABLE_DNS 145#if ENABLE_DNS
143 struct dns_connection *dns; 146 struct dns_connection *dns;
144 147
145 void dnsv4_reset_connection (); 148 void dnsv4_reset_connection ();
146#endif 149#endif
147 150
148 enum conf_node::connectmode connectmode; 151 enum conf_node::connectmode connectmode;
149 u8 prot_minor; // minor number of other side 152 u8 prot_minor; // minor number of other side
150 153
151 void reset_si (); 154 void reset_si ();
152 const sockinfo &forward_si (const sockinfo &si) const; 155 const sockinfo &forward_si (const sockinfo &si) const;
153 156
154 void shutdown (); 157 void shutdown ();
155 void connection_established (); 158 void connection_established ();
156 void reset_connection (); 159 void reset_connection ();
157 160
158 void establish_connection_cb (time_watcher &w); time_watcher establish_connection; 161 void establish_connection_cb (ev::timer &w, int revents); ev::timer establish_connection;
159 void rekey_cb (time_watcher &w); time_watcher 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)
160 void keepalive_cb (time_watcher &w); time_watcher keepalive; // next keepalive probe 163 void keepalive_cb (ev::timer &w, int revents); ev::timer keepalive; // next keepalive probe
161 164
162 void send_connect_request (int id); 165 void send_connect_request (int id);
163 void send_auth_request (const sockinfo &si, bool initiate); 166 void send_auth_request (const sockinfo &si, bool initiate);
164 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);
165 void send_connect_info (int rid, const sockinfo &rsi, u8 rprotocols); 168 void send_connect_info (int rid, const sockinfo &rsi, u8 rprotocols);
166 void send_reset (const sockinfo &dsi); 169 void send_reset (const sockinfo &dsi);
167 void send_ping (const sockinfo &dsi, u8 pong = 0); 170 void send_ping (const sockinfo &dsi, u8 pong = 0);
168 void send_data_packet (tap_packet *pkt); 171 void send_data_packet (tap_packet *pkt);
169 172
170 void inject_data_packet (tap_packet *pkt, bool broadcast = false); 173 void inject_data_packet (tap_packet *pkt, bool broadcast = false);
171 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
172 175
173 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi); 176 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi);
174 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);
175 178
176 void script_init_env (const char *ext); 179 void script_init_env (const char *ext);
177 void script_init_connect_env (); 180 void script_init_connect_env ();
178 const char *script_node_up (); 181 const char *script_node_up ();
179 const char *script_node_down (); 182 const char *script_node_down ();
180 183
181 void dump_status (); 184 void dump_status ();
182 185
183 connection (struct vpn *vpn, conf_node *conf); 186 connection (struct vpn *vpn, conf_node *conf);
184 ~connection (); 187 ~connection ();
185 }; 188};
186 189
187#endif 190#endif
188 191

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines