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Implement promiscuous (dumb) mode by binding port on outgoing socket

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This mode is useful for services which cannot handle multiple clients.
Also useful for NAT traversal.

All outgoing packets would be transmitted from a single "client" (UDP port).
Moreover, only one (latest) proxy client receives the reply.
This commit is contained in:
ValdikSS
2017-04-13 00:59:14 +03:00
parent 1f8f9b591b
commit b750cefb00
3 changed files with 21 additions and 12 deletions
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2
net.h
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@@ -56,7 +56,7 @@ void handle_inside(int inside, host_t *listen_h, host_t *bind_h, host_t *dst_h);
void handle_outside(int inside, int outside, host_t *outside_h);
int main_loop(int listensocket, host_t *listen_h, host_t *bind_h, host_t *dst_h);
int start_listener (char *inip, char *inpt, char *srcip, char *dstip,
int start_listener (char *inip, char *inpt, char *srcip, char *srcpt, char *dstip,
char *dstpt, char *pidfile, char *chrootdir, char *user);
int daemonize(char *pidfile);
int drop_privileges(char *user, char *chrootdir);