mirror of
https://github.com/yarrick/iodine.git
synced 2024-09-07 03:27:00 +00:00
#11 moved user code to user.c
This commit is contained in:
parent
265332f39b
commit
23ad29522b
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@ -2,7 +2,7 @@ CC = gcc
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CLIENT = ../bin/iodine
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CLIENTOBJS = iodine.o tun.o dns.o read.o encoding.o login.o base32.o md5.o common.o
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SERVER = ../bin/iodined
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SERVEROBJS = iodined.o tun.o dns.o read.o encoding.o login.o base32.o md5.o common.o
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SERVEROBJS = iodined.o tun.o dns.o read.o encoding.o login.o base32.o md5.o common.o user.o
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OS = `uname | tr "a-z" "A-Z"`
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ARCH = `uname -m`
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13
src/common.h
13
src/common.h
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@ -42,19 +42,6 @@ struct query {
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int fromlen;
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};
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struct user {
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char id;
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int active;
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time_t last_pkt;
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int seed;
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in_addr_t tun_ip;
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struct sockaddr host;
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int addrlen;
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struct query q;
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struct packet inpacket;
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struct packet outpacket;
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};
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int open_dns(int, in_addr_t);
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void close_dns(int);
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@ -18,7 +18,6 @@
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <netinet/in.h>
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#include <signal.h>
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#include <unistd.h>
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#include <sys/types.h>
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@ -36,6 +35,7 @@
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#include "common.h"
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#include "dns.h"
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#include "user.h"
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#include "login.h"
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#include "tun.h"
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#include "encoding.h"
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@ -45,8 +45,6 @@ int running = 1;
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char *topdomain;
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#define USERS 8
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struct user users[USERS];
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char password[33];
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int my_mtu;
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@ -61,76 +59,6 @@ sigint(int sig)
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running = 0;
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}
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static void
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init_users()
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{
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int i;
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char newip[16];
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memset(users, 0, USERS * sizeof(struct user));
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for (i = 0; i < USERS; i++) {
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users[i].id = i;
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snprintf(newip, sizeof(newip), "0.0.0.%d", i + 1);
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users[i].tun_ip = my_ip + inet_addr(newip);;
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users[i].inpacket.len = 0;
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users[i].inpacket.offset = 0;
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users[i].outpacket.len = 0;
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users[i].q.id = 0;
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}
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}
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static int
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users_waiting_on_reply()
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{
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int ret;
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int i;
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ret = 0;
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for (i = 0; i < USERS; i++) {
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if (users[i].active && users[i].last_pkt + 60 > time(NULL) &&
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users[i].q.id != 0) {
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ret++;
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}
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}
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return ret;
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}
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static int
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find_user_by_ip(uint32_t ip)
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{
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int ret;
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int i;
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ret = -1;
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for (i = 0; i < USERS; i++) {
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if (users[i].active && users[i].last_pkt + 60 > time(NULL) &&
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ip == users[i].tun_ip) {
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ret = i;
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break;
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}
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}
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return ret;
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}
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static int
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find_available_user()
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{
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int ret = -1;
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int i;
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for (i = 0; i < USERS; i++) {
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/* Not used at all or not used in one minute */
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if (!users[i].active || users[i].last_pkt + 60 < time(NULL)) {
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users[i].active = 1;
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users[i].last_pkt = time(NULL);
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ret = i;
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break;
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}
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}
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return ret;
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}
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static int
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tunnel_tun(int tun_fd, int dns_fd)
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{
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@ -282,6 +210,7 @@ tunnel_dns(int tun_fd, int dns_fd)
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write_dns(dns_fd, &(dummy.q), "BADIP", 5);
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return 0; /* illegal id */
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}
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users[userid].last_pkt = time(NULL);
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} else if((in[0] >= '0' && in[0] <= '9')
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|| (in[0] >= 'a' && in[0] <= 'f')
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|| (in[0] >= 'A' && in[0] <= 'F')) {
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@ -582,7 +511,7 @@ main(int argc, char **argv)
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my_ip = inet_addr(argv[0]);
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my_mtu = mtu;
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init_users();
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init_users(my_ip);
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printf("Listening to dns for domain %s\n", argv[1]);
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99
src/user.c
Normal file
99
src/user.c
Normal file
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@ -0,0 +1,99 @@
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/*
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* Copyright (c) 2006 Bjorn Andersson <flex@kryo.se>, Erik Ekman <yarrick@kryo.se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <time.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include "common.h"
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#include "user.h"
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struct user users[USERS];
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void
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init_users(in_addr_t my_ip)
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{
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int i;
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char newip[16];
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memset(users, 0, USERS * sizeof(struct user));
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for (i = 0; i < USERS; i++) {
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users[i].id = i;
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snprintf(newip, sizeof(newip), "0.0.0.%d", i + 1);
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users[i].tun_ip = my_ip + inet_addr(newip);;
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users[i].inpacket.len = 0;
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users[i].inpacket.offset = 0;
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users[i].outpacket.len = 0;
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users[i].q.id = 0;
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}
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}
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int
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users_waiting_on_reply()
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{
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int ret;
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int i;
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ret = 0;
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for (i = 0; i < USERS; i++) {
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if (users[i].active && users[i].last_pkt + 60 > time(NULL) &&
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users[i].q.id != 0) {
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ret++;
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}
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}
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return ret;
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}
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int
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find_user_by_ip(uint32_t ip)
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{
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int ret;
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int i;
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ret = -1;
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for (i = 0; i < USERS; i++) {
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if (users[i].active && users[i].last_pkt + 60 > time(NULL) &&
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ip == users[i].tun_ip) {
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ret = i;
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break;
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}
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}
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return ret;
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}
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int
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find_available_user()
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{
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int ret = -1;
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int i;
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for (i = 0; i < USERS; i++) {
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/* Not used at all or not used in one minute */
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if (!users[i].active || users[i].last_pkt + 60 < time(NULL)) {
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users[i].active = 1;
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users[i].last_pkt = time(NULL);
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ret = i;
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break;
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}
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}
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return ret;
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}
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42
src/user.h
Normal file
42
src/user.h
Normal file
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@ -0,0 +1,42 @@
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/*
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* Copyright (c) 2006 Bjorn Andersson <flex@kryo.se>, Erik Ekman <yarrick@kryo.se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef __USER_H__
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#define __USER_H__
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#define USERS 8
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struct user {
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char id;
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int active;
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time_t last_pkt;
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int seed;
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in_addr_t tun_ip;
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struct sockaddr host;
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int addrlen;
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struct query q;
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struct packet inpacket;
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struct packet outpacket;
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};
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extern struct user users[USERS];
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void init_users(in_addr_t);
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int users_waiting_on_reply();
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int find_user_by_ip(uint32_t);
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int find_available_user();
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#endif
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