| … | |
… | |
| 47 | #include "vpn.h" |
47 | #include "vpn.h" |
| 48 | |
48 | |
| 49 | #define MAX_POLL_INTERVAL 5. // how often to poll minimally when the server has no data |
49 | #define MAX_POLL_INTERVAL 5. // how often to poll minimally when the server has no data |
| 50 | #define ACTIVITY_INTERVAL 5. |
50 | #define ACTIVITY_INTERVAL 5. |
| 51 | |
51 | |
| 52 | #define TIMEOUT_FACTOR 8. |
52 | #define TIMEOUT_FACTOR 2. |
| 53 | |
53 | |
| 54 | #define INITIAL_TIMEOUT 0.1 // retry timeouts |
54 | #define INITIAL_TIMEOUT 0.1 // retry timeouts |
| 55 | #define INITIAL_SYN_TIMEOUT 10. // retry timeout for initial syn |
55 | #define INITIAL_SYN_TIMEOUT 10. // retry timeout for initial syn |
| 56 | |
56 | |
| 57 | #define MIN_SEND_INTERVAL 0.001 // wait at least this time between sending requests |
57 | #define MIN_SEND_INTERVAL 0.001 // wait at least this time between sending requests |
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| 60 | #define LATENCY_FACTOR 0.5 // RTT * LATENCY_FACTOR == sending rate |
60 | #define LATENCY_FACTOR 0.5 // RTT * LATENCY_FACTOR == sending rate |
| 61 | #define MAX_OUTSTANDING 100 // max. outstanding requests |
61 | #define MAX_OUTSTANDING 100 // max. outstanding requests |
| 62 | #define MAX_WINDOW 1000 // max. for MAX_OUTSTANDING, and backlog |
62 | #define MAX_WINDOW 1000 // max. for MAX_OUTSTANDING, and backlog |
| 63 | #define MAX_BACKLOG (32*1024) // size of gvpe protocol backlog (bytes), must be > MAXSIZE |
63 | #define MAX_BACKLOG (32*1024) // size of gvpe protocol backlog (bytes), must be > MAXSIZE |
| 64 | |
64 | |
| 65 | #define MAX_DOMAIN_SIZE 220 // 255 is legal limit, but bind doesn't compress well |
65 | #define MAX_DOMAIN_SIZE 240 // 255 is legal limit, but bind doesn't compress well |
| 66 | // 240 leaves about 4 bytes of server reply data |
66 | // 240 leaves about 4 bytes of server reply data |
| 67 | // every request byte less give room for two reply bytes |
67 | // every request byte less give room for two reply bytes |
| 68 | |
68 | |
| 69 | #define SEQNO_MASK 0x3fff |
69 | #define SEQNO_MASK 0x3fff |
| 70 | #define SEQNO_EQ(a,b) ( 0 == ( ((a) ^ (b)) & SEQNO_MASK) ) |
70 | #define SEQNO_EQ(a,b) ( 0 == ( ((a) ^ (b)) & SEQNO_MASK) ) |
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| 1229 | { |
1229 | { |
| 1230 | send = r; |
1230 | send = r; |
| 1231 | |
1231 | |
| 1232 | r->retry++; |
1232 | r->retry++; |
| 1233 | r->timeout = NOW + (r->retry * min_latency * TIMEOUT_FACTOR); |
1233 | r->timeout = NOW + (r->retry * min_latency * TIMEOUT_FACTOR); |
| 1234 | printf ("TO %d %f\n", r->retry, r->timeout - NOW);//D |
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| 1235 | |
1234 | |
| 1236 | // the following code changes the query section a bit, forcing |
1235 | // the following code changes the query section a bit, forcing |
| 1237 | // the forwarder to generate a new request |
1236 | // the forwarder to generate a new request |
| 1238 | if (r->stdhdr) |
1237 | if (r->stdhdr) |
| 1239 | { |
1238 | { |
