1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
/* DHT test
* A file with a main that runs our DHT for testing.
*
* Compile with: gcc -O2 -Wall -D VANILLA_NACL -o test ../core/Lossless_UDP.c ../core/network.c ../core/net_crypto.c ../core/Messenger.c ../nacl/build/${HOSTNAME%.*}/lib/amd64/* DHT_test.c
*
* Command line arguments are the ip, port and public key of a node.
* EX: ./test 127.0.0.1 33445 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
*
* The test will then ask you for the id (in hex format) of the friend you wish to add
*/
//#include "../core/network.h"
#include "../core/DHT.c"
#include <string.h>
//Sleep function (x = milliseconds)
#ifdef WIN32
#define c_sleep(x) Sleep(1*x)
#else
#include <unistd.h>
#include <arpa/inet.h>
#define c_sleep(x) usleep(1000*x)
#endif
#define PORT 33445
void print_clientlist()
{
uint32_t i, j;
IP_Port p_ip;
printf("___________________CLOSE________________________________\n");
for(i = 0; i < 4; i++)
{
printf("ClientID: ");
for(j = 0; j < 32; j++)
{
printf("%c", close_clientlist[i].client_id[j]);
}
p_ip = close_clientlist[i].ip_port;
printf("\nIP: %u.%u.%u.%u Port: %u",p_ip.ip.c[0],p_ip.ip.c[1],p_ip.ip.c[2],p_ip.ip.c[3],ntohs(p_ip.port));
printf("\nTimestamp: %u", close_clientlist[i].timestamp);
printf("\nLast pinged: %u\n", close_clientlist[i].last_pinged);
}
}
void print_friendlist()
{
uint32_t i, j, k;
IP_Port p_ip;
printf("_________________FRIENDS__________________________________\n");
for(k = 0; k < num_friends; k++)
{
printf("FRIEND %u\n", k);
printf("ID: ");
for(j = 0; j < 32; j++)
{
printf("%c", friends_list[k].client_id[j]);
}
p_ip = DHT_getfriendip(friends_list[k].client_id);
printf("\nIP: %u.%u.%u.%u:%u",p_ip.ip.c[0],p_ip.ip.c[1],p_ip.ip.c[2],p_ip.ip.c[3],ntohs(p_ip.port));
printf("\nCLIENTS IN LIST:\n\n");
for(i = 0; i < 4; i++)
{
printf("ClientID: ");
for(j = 0; j < 32; j++)
{
if(0 <= friends_list[k].client_list[i].client_id[j] && friends_list[k].client_list[i].client_id[j] < 16)
printf("0");
printf("%hhX", friends_list[k].client_list[i].client_id[j]);
}
p_ip = friends_list[k].client_list[i].ip_port;
printf("\nIP: %u.%u.%u.%u:%u",p_ip.ip.c[0],p_ip.ip.c[1],p_ip.ip.c[2],p_ip.ip.c[3],ntohs(p_ip.port));
printf("\nTimestamp: %u", friends_list[k].client_list[i].timestamp);
printf("\nLast pinged: %u\n", friends_list[k].client_list[i].last_pinged);
}
}
}
void printpacket(uint8_t * data, uint32_t length, IP_Port ip_port)
{
uint32_t i;
printf("UNHANDLED PACKET RECEIVED\nLENGTH:%u\nCONTENTS:\n", length);
printf("--------------------BEGIN-----------------------------\n");
for(i = 0; i < length; i++)
{
if(data[i] < 16)
printf("0");
printf("%hhX",data[i]);
}
printf("\n--------------------END-----------------------------\n\n\n");
}
//horrible function from one of my first C programs.
//only here because I was too lazy to write a proper one.
unsigned char * hex_string_to_bin(char hex_string[])
{
unsigned char * val = malloc(strlen(hex_string));
char * pos = hex_string;
int i=0;
while(i < strlen(hex_string))
{
sscanf(pos,"%2hhx",&val[i]);
pos+=2;
i++;
}
return val;
}
int main(int argc, char *argv[])
{
//memcpy(self_client_id, "qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq", 32);
if (argc < 4) {
printf("usage %s ip port public_key\n", argv[0]);
exit(0);
}
new_keys();
printf("OUR ID: ");
uint32_t i;
for(i = 0; i < 32; i++)
{
if(self_public_key[i] < 16)
printf("0");
printf("%hhX",self_public_key[i]);
}
char temp_id[128];
printf("\nEnter the client_id of the friend you wish to add (32 bytes HEX format):\n");
scanf("%s", temp_id);
DHT_addfriend(hex_string_to_bin(temp_id));
//initialize networking
//bind to ip 0.0.0.0:PORT
IP ip;
ip.i = 0;
init_networking(ip, PORT);
perror("Initialization");
IP_Port bootstrap_ip_port;
bootstrap_ip_port.port = htons(atoi(argv[2]));
//bootstrap_ip_port.ip.c[0] = 127;
//bootstrap_ip_port.ip.c[1] = 0;
//bootstrap_ip_port.ip.c[2] = 0;
//bootstrap_ip_port.ip.c[3] = 1;
bootstrap_ip_port.ip.i = inet_addr(argv[1]);
DHT_bootstrap(bootstrap_ip_port, hex_string_to_bin(argv[3]));
IP_Port ip_port;
uint8_t data[MAX_UDP_PACKET_SIZE];
uint32_t length;
while(1)
{
doDHT();
while(receivepacket(&ip_port, data, &length) != -1)
{
if(DHT_handlepacket(data, length, ip_port))
{
//unhandled packet
printpacket(data, length, ip_port);
}
else
{
printf("Received handled packet with length: %u\n", length);
}
}
print_clientlist();
print_friendlist();
c_sleep(300);
}
shutdown_networking();
return 0;
}
|
