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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.
73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
/*
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This file is part of udpxd.
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Copyright (C) 2015-2016 T.v.Dein.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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You can contact me by mail: <tom AT vondein DOT org>.
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*/
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#ifndef _HAVE_NET_H
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#define _HAVE_NET_H
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <time.h>
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#include <signal.h>
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#include <setjmp.h>
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#include <syslog.h>
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#include <sys/stat.h>
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#include <sys/socket.h>
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#include <sys/select.h>
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#include <netinet/in.h>
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#include <sys/types.h>
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#include <sys/fcntl.h>
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#include <arpa/inet.h>
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#include <pwd.h>
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#include "client.h"
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#define MAX_BUFFER_SIZE 65535
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extern client_t *clients;
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extern int VERBOSE;
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extern int FORKED;
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void handle_inside(int inside, host_t *listen_h, host_t *bind_h, host_t *dst_h);
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void handle_outside(int inside, int outside, host_t *outside_h);
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int main_loop(int listensocket, host_t *listen_h, host_t *bind_h, host_t *dst_h);
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int start_listener (char *inip, char *inpt, char *srcip, char *srcpt, char *dstip,
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char *dstpt, char *pidfile, char *chrootdir, char *user);
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int daemonize(char *pidfile);
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int drop_privileges(char *user, char *chrootdir);
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int fill_set(fd_set *fds);
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int get_sender(fd_set *fds);
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int bindsocket( host_t *sock_h);
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void int_handler(int sig);
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void verb_prbind (host_t *bind_h);
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#define _IS_LINK_LOCAL(a) do { IN6_IS_ADDR_LINKLOCAL(a); } while(0)
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#endif
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