bfu/3MICTCP
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Merge branch 'Gwen'

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This commit is contained in:
Newglear 2022-04-11 10:46:13 +02:00
commit f64dfead5c
2 changed files with 76 additions and 87 deletions
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1
include/mictcp.h
View file

@ -72,7 +72,6 @@ typedef struct mic_tcp_header
unsigned char ack; /* flag ACK (valeur 1 si activé et 0 si non) */
unsigned char fin; /* flag FIN (valeur 1 si activé et 0 si non) */
} mic_tcp_header;
/*
* Structure d'un PDU MIC-TCP
*/

162
src/mictcp.c
View file

@ -3,8 +3,11 @@
#include <mictcp.h>
#include <api/mictcp_core.h>
#define TIMEOUT 100
#define SIZE 1000
#define TIMEOUT 10
#define TIMEOUT2 100
#define SIZE 100
#define LOST 10
#define LOSTRATE "15"
/*
* Permet de créer un socket entre l’application et MIC-TCP
@ -16,7 +19,7 @@
float lostpdu = 0.0;
float lostrate = 15.0;
float pduemis =0.0;
int pduemis =0;
int fenetre[SIZE];
void init (int* tab,int size){
for(int i=0;i<size;i++){
@ -24,11 +27,11 @@
}
}
float rate(int* tab, int size){
int s =0;
float s =0.0;
for(int i=0; i<size;i++){
s += tab[i];
s += (float)tab[i];
}
return (float)((s/SIZE)*100);
return ((s/(float)SIZE)*100.0);
}
pthread_mutex_t mutex= PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t cond= PTHREAD_COND_INITIALIZER;
@ -40,7 +43,7 @@ int mic_tcp_socket(start_mode sm)
printf("[MIC-TCP] Appel de la fonction: "); printf(__FUNCTION__); printf("\n");
result = initialize_components(sm); /* Appel obligatoire */
sock.fd=result;
set_loss_rate(0);
set_loss_rate(LOST);
return result;
}
@ -67,10 +70,9 @@ int mic_tcp_bind(int socket, mic_tcp_sock_addr addr)
int mic_tcp_accept(int socket, mic_tcp_sock_addr* addr)
{
printf("[MIC-TCP] Appel de la fonction: "); printf(__FUNCTION__); printf("\n");
/*
printf("Je vais dormir\n");
//printf("Je vais dormir\n");
pthread_cond_wait(&cond,&mutex);
printf("Je suis réveillé\n");*/
//printf("Je suis réveillé\n");
sock.state = CONNECTED;
return 0;
@ -84,12 +86,12 @@ int mic_tcp_connect(int socket, mic_tcp_sock_addr addr)
{
printf("[MIC-TCP] Appel de la fonction: "); printf(__FUNCTION__); printf("\n");
//Encpsulation SYN
/*
mic_tcp_pdu pdusyn;
mic_tcp_pdu ack;
int sent= -1;
int max = 20;
int max = 300;
int count = 0;
int test=0;
@ -98,26 +100,25 @@ int mic_tcp_connect(int socket, mic_tcp_sock_addr addr)
pdusyn.header.syn= 1;
pdusyn.header.ack=0;
pdusyn.header.fin=0;
char jpp[] = "";
memcpy(&(pdu.payload.data),&jpp,sizeof(jpp));
pdusyn.payload.data= LOSTRATE;
pdusyn.payload.size = 0;
pdu.header.ack = 0;
pdu.header.syn = 0;
printf("Test1\n");
while(pdu.header.syn != 1 && pdu.header.ack !=1){
count = 0;
while(pdu.header.syn != 1 && pdu.header.ack !=1){
if(count == max){return(-1);}
if (count != 0)
printf("Paquet message perdu \n");
count++;
printf("Test2\n");
if((sent=IP_send(pdusyn,addr))==-1){
printf("Erreur d'envoi du pdu\n");
exit(1);
}
test=(IP_recv(&pdu,&sock.addr,TIMEOUT) ==-1);
printf("Test2\n");
test=(IP_recv(&pdu,&sock.addr,TIMEOUT2) ==-1);
while(count < max && test){
@ -127,7 +128,7 @@ int mic_tcp_connect(int socket, mic_tcp_sock_addr addr)
printf("Erreur d'envoi du pdu");
return(1);
}
test=(IP_recv(&pdu,&sock.addr,TIMEOUT) ==-1);
test=(IP_recv(&pdu,&sock.addr,TIMEOUT2) ==-1);
}
printf("Count : %d\n",count);
if(count == max)
@ -146,8 +147,9 @@ int mic_tcp_connect(int socket, mic_tcp_sock_addr addr)
if(IP_send(ack,sock.addr)==-1){
printf("Erreur d'envoi du pdu");
exit(1);
}*/
}
printf("Connected\n");
init(fenetre,SIZE);
sock.state=CONNECTED;
return 0;
}
@ -160,12 +162,12 @@ int mic_tcp_send (int mic_sock, char* mesg, int mesg_size)
{
printf("[MIC-TCP] Appel de la fonction: "); printf(__FUNCTION__); printf("\n");
int sent= -1;
if(sock.state==CONNECTED){
int max = 20;
int count = 0;
int test;
pdu.header.syn = 0;
pdu.header.ack = 0;
pdu.header.fin = 0;
@ -175,7 +177,6 @@ int mic_tcp_send (int mic_sock, char* mesg, int mesg_size)
pdu.payload.size=mesg_size;
mic_tcp_pdu mem = pdu;
printf("%d\n",pdu.header.seq_num);
if((sent=IP_send(pdu,sock.addr))==-1){
printf("Erreur d'envoi du pdu");
exit(1);
@ -186,12 +187,16 @@ int mic_tcp_send (int mic_sock, char* mesg, int mesg_size)
test = (IP_recv(&pdu,&sock.addr,TIMEOUT) ==-1);
if (test){
lostpdu++;
fenetre[pduemis%SIZE]=1;
printf("Lost Pdu : %f\n",lostpdu);
}
printf("Lost rate= %f \n",(lostpdu/pduemis)*100.0);
else{
fenetre[pduemis%SIZE]=0;
}
float truc =rate(fenetre,SIZE);
printf("Lost rate= %f \n",truc);
if((lostpdu/pduemis)*100.0 >= lostrate && test){
if(truc>= lostrate && test){
while(count < max && test){
count++;
printf("Count: %d \n", count);
@ -272,7 +277,6 @@ void process_received_PDU(mic_tcp_pdu pdu, mic_tcp_sock_addr addr)
printf("[MIC-TCP] Appel de la fonction: "); printf(__FUNCTION__); printf("\n");
if (sock.state == CONNECTED){
printf("Paquet recu \n");
printf("ACK NUM %d\n",pdu.header.ack);
mic_tcp_pdu ack;
if(pdu.header.seq_num == PA){
@ -292,71 +296,57 @@ void process_received_PDU(mic_tcp_pdu pdu, mic_tcp_sock_addr addr)
exit(1);
}
printf("Ack envoyé \n");
}else{
printf("Paquet Ack perdu\n");
}else{
int test=0;
int sent= -1;
int max = 20;
int count = 0;
mic_tcp_pdu paqu;
while(paqu.header.syn != 1){
test=(IP_recv(&paqu,&sock.addr,TIMEOUT) ==-1);
if(test){}
//printf("En attente\n");
}
ack.header.ack=1;
ack.header.ack_num=PA;
ack.payload.data ="";
ack.payload.size=0;
mic_tcp_pdu sack;
sack.header.seq_num = PE; // Création du header et setup PA et PE
sack.header.ack_num = PA;
sack.header.syn= 1;
sack.header.ack=1;
sack.header.fin=0;
sack.payload.data = pdu.payload.data;
sack.payload.size = sizeof(pdu.payload.data);
if (IP_send(ack,addr)==-1)
{
printf("Erreur d'envoi du pdu");
exit(1);
}
printf("Ack envoyé \n");
printf("Je me connecte\n");
int test=0;
int sent= -1;
int max = 20;
int count = 0;
mic_tcp_pdu paqu;
while(paqu.header.syn != 1){
test=(IP_recv(&paqu,&sock.addr,TIMEOUT) ==-1);
if(test){}
//printf("En attente\n");
}
mic_tcp_pdu sack;
sack.header.seq_num = PE; // Création du header et setup PA et PE
sack.header.ack_num = PA;
sack.header.syn= 1;
sack.header.ack=1;
sack.header.fin=0;
sack.payload.data = pdu.payload.data;
sack.payload.size = sizeof(pdu.payload.data);
while(paqu.header.ack != 1){
if(count == max){exit(-1);}
count++;
if (count == 0)
printf("Paquet message perdu \n");
if((sent=IP_send(sack,sock.addr))==-1){
printf("Erreur d'envoi du pdu");
exit(1);
}
test=(IP_recv(&paqu,&sock.addr,TIMEOUT) ==-1);
while(count < max && test){
count++;
while(paqu.header.ack != 1){
if(count == max){exit(-1);}
if(IP_send(sack,sock.addr)==-1){
count++;
if (count == 0)
printf("Paquet message perdu \n");
if((sent=IP_send(sack,sock.addr))==-1){
printf("Erreur d'envoi du pdu");
exit(1);
}
test=(IP_recv(&paqu,&sock.addr,TIMEOUT) ==-1);
test=(IP_recv(&paqu,&sock.addr,TIMEOUT2) ==-1);
while(count < max && test){
count++;
if(count == max){exit(-1);}
if(IP_send(sack,sock.addr)==-1){
printf("Erreur d'envoi du pdu");
exit(1);
}
test=(IP_recv(&paqu,&sock.addr,TIMEOUT2) ==-1);
}
printf("Count : %d\n",count);
if(count == max)
exit(-1);
}
printf("Connected\n");
pthread_cond_broadcast(&cond);
sock.state = CONNECTED;
printf("Count : %d\n",count);
if(count == max)
exit(-1);
}
printf("Connected\n");
pthread_cond_broadcast(&cond);
sock.state = CONNECTED;
}