[updated] central-manager : 1. removed middleware for planes 2. instead thread that publishes over multicast UDP to planes every N seconds. 3. Added udp/client to central-manager
[todo] 1. Update `bind_header` flags to know if plane/vterm/cterm with combination + must ask for TCP/UDP (implicit) no need to say it
This commit is contained in:
parent
8b0e2c05bf
commit
d5f883add1
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@ -12,6 +12,9 @@ lib/network/tcp/server.o: lib/header.h lib/network/tcp/server.h lib/network/tcp/
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lib/network/udp/server.o: lib/header.h lib/network/udp/server.h lib/network/udp/server.c
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gcc $(CFLAGS) -c -o lib/network/udp/server.o lib/network/udp/server.c
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lib/network/udp/client.o: lib/header.h lib/network/udp/client.h lib/network/udp/client.c
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gcc $(CFLAGS) -c -o lib/network/udp/client.o lib/network/udp/client.c
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lib/local/middleware.o: lib/header.h lib/local/middleware.h lib/local/middleware.c
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gcc $(CFLAGS) -c -o lib/local/middleware.o lib/local/middleware.c
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@ -20,8 +23,8 @@ lib/local/handler.o: lib/header.h lib/local/handler.h lib/local/handler.c
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# Compiles the SGCA
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boot: lib/network/tcp/server.o lib/network/udp/server.o lib/local/middleware.o lib/local/handler.o central-manager.h central-manager.c
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gcc $(CFLAGS) -o boot lib/network/udp/server.o lib/network/tcp/server.o lib/local/middleware.o lib/local/handler.o central-manager.c
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boot: lib/network/tcp/server.o lib/network/udp/server.o lib/network/udp/client.o lib/local/middleware.o lib/local/handler.o central-manager.h central-manager.c
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gcc $(CFLAGS) -o boot lib/network/udp/server.o lib/network/udp/client.o lib/network/tcp/server.o lib/local/middleware.o lib/local/handler.o central-manager.c
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# Run full compilation
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@ -38,7 +38,7 @@ int main(int argc, char* argv[]){
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/* 2. Variables locales */
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struct listen_arg tcp_listn_arg = { SERV_HOST, TCP_LIST, NULL, &managePlane };
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struct listen_arg udp_mcast_arg = { MCST_HOST, UDP_MCST, &multicastPlanes, NULL };
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struct listen_arg udp_mcast_arg = { MCST_HOST, UDP_MCST, NULL, NULL };
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struct listen_arg udp_vterm_arg = { MCST_VTER, UDP_VTER, &multicastTerminal, &manageViewTerm };
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struct listen_arg udp_cterm_arg = { MCST_CTER, UDP_CTER, &multicastTerminal, &manageCtrlTerm };
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@ -50,7 +50,7 @@ int main(int argc, char* argv[]){
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if( DEBUGMOD&THR ) printf("{tcp_listn} démarré\n");
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/* (2) Ecoute UDP multicast */
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pthread_create(&listenManagers[1], NULL, LISTEN_UDP, (void*) &udp_mcast_arg);
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pthread_create(&listenManagers[1], NULL, MCAST_PUBLISH, (void*) &udp_mcast_arg);
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if( DEBUGMOD&THR ) printf("{udp_mcast} démarré\n");
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/* (3) Ecoute UDP viewTerm */
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@ -317,3 +317,94 @@ void* LISTEN_UDP(void* THREADABLE_ARGS){
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return NULL;
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}
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/* Publication de la socket TCP sur un groupe multicast
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*
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* @history
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* [0] Initialisation des variables
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* [1] On initialise la socket CLIENT UDP
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* [2] On construit la requête à envoyer
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* @loop
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* [3] On attends un délai fixé (2s par défaut)
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* [4] On envoie les information de la socket TCP
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* [N] On ferme la SOCKET
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*
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*/
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void* MCAST_PUBLISH(void* THREADABLE_ARGS){
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/* [0] Initialisation des variables
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==========================================================*/
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/* 1. On initialise les variables */
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struct sockaddr_in targetInfo; // contiendra les infos de la cible de la socket client
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char buffer[MAX_BUF_LEN]; // buffer de requêtes (envois)
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struct bind_header request; // requête brute
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/* 2. On parse les arguments */
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struct listen_arg* arg = THREADABLE_ARGS; // Addr + Port serveur
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// retour de @UDP_SOCKET
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int SOCKET;
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/* [1] On initialise la socket CLIENT UDP
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==========================================================*/
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if( UDP_SOCKET(&SOCKET, arg->addr, arg->port, &targetInfo) < 0 ){
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if( DEBUGMOD&SCK ) printf("{udp_mcast} Erreur de création socket UDP client\n");
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// On ferme la SOCKET d'écoute globale
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printf("{udp_mcast} FERMETURE SOCKET CLIENT UDP!\n");
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close(SOCKET);
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return NULL;
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}
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printf("{udp_mcast} bound to %s:%d\n", arg->addr, arg->port);
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/* [2] On construit la requête à envoyer
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=========================================================*/
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/* 1. Initialisation du buffer */
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bzero(buffer, MAX_BUF_LEN*sizeof(char));
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/* 2. Remplissage de la requête brute */
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request.flags = BINDHEAD_TCP;
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strcpy(request.addr, SERV_HOST);
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request.port = htons(TCP_LIST);
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/* 3. Copie dans le buffer */
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memcpy(buffer, &request.flags, sizeof(char));
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memcpy(buffer+sizeof(char), &request.addr, sizeof(char)*INET_ADDRSTRLEN);
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memcpy(buffer+sizeof(char)*(INET_ADDRSTRLEN+1), &request.port, sizeof(unsigned short));
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while( 1 ){
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/* [3] On attends un délai fixé (2s par défaut)
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=========================================================*/
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sleep(PUBL_TIMEOUT);
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/* [4] On envoie les information de la socket TCP
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=========================================================*/
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if( sendto(SOCKET, buffer, BINDHDR_LEN / sizeof(char) + 1, 0, (struct sockaddr*) &targetInfo, sizeof(struct sockaddr_in)) < 0 ){
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printf("{udp_mcast} Erreur d'envoi\n");
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break;
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}
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}
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/* [n] On ferme la SOCKET CLIENT UDP
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==========================================================*/
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printf("{udp_mcast} FERMETURE SOCKET CLIENT UDP!\n");
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close(SOCKET);
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return NULL;
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}
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@ -14,13 +14,15 @@
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/* local dependencies */
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#include "lib/network/tcp/server.h"
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#include "lib/network/udp/server.h"
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#include "lib/network/udp/client.h"
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#include "lib/local/middleware.h"
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#include "lib/local/handler.h"
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/* headers */
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void* LISTEN_TCP(void* THREADABLE_ARG);
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void* LISTEN_UDP(void* THREADABLE_ARG);
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void* LISTEN_TCP(void* THREADABLE_ARGS);
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void* LISTEN_UDP(void* THREADABLE_ARGS);
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void* MCAST_PUBLISH(void* THREADABLE_ARGS);
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@ -42,8 +42,8 @@
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#define BINDHDR_LEN ( sizeof(char)*(1+INET_ADDRSTRLEN)+sizeof(unsigned short) )
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#define BINDHEAD_CTL 0x01 // is command terminal (else: view terminal)
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#define BINDHEAD_SCK 0x02 // ask for com socket
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#define BINDHEAD_TCP 0x04 // ask TCP instead of UDP
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#define BINDHEAD_SCK 0x02 // ask for com socket (terminal)
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#define BINDHEAD_TCP 0x04 // ask TCP com socket (plane)
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struct bind_header{
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char flags;
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@ -53,6 +53,7 @@
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#define maxPortLen 6
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#define SOCK_TIMEOUT 3 // 3sec timeout (1+ temps refresh plane)
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#define PUBL_TIMEOUT 2 // 2sec entre chaque publication sur multicast UDP (pour avions)
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struct context{
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@ -11,78 +11,6 @@
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int multicastPlanes(struct middleware_arg* arg){
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/* [0] Initialisation
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=========================================================*/
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struct sockaddr_in clientInfo; // contiendra les infos client
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socklen_t len; // taille de la socket
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int read; // compteurs
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char buffer[MAX_BUF_LEN+1]; // buffer requête
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struct bind_header request; // requête parsée
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/* 1. On attends une connection UDP */
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len = sizeof(struct sockaddr_in);
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read = recvfrom(arg->listenSock, buffer, MAX_BUF_LEN, 0, (struct sockaddr*) &clientInfo, &len);
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/* 2. Si erreur reception ou taille incorrecte -> retour à l'écoute */
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if( read < BINDHDR_LEN ){
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if( DEBUGMOD&BUF ) printf("{%s} read('%s') = %d bytes (expected: %d)\n", arg->entity, buffer, read, (int) (BINDHDR_LEN) );
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return -1;
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}
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/* 3. On récupère l'adresse IP du client */
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if( DEBUGMOD&SCK ) printf("{%s} %s:%d connecté\n", arg->entity, inet_ntoa(clientInfo.sin_addr), ntohs(clientInfo.sin_port));
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/* [1] Gestion de la requête
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=========================================================*/
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/* 1. On parse la requête */
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memcpy(&request.flags, buffer, sizeof(char));
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memcpy(&request.addr, buffer+sizeof(char), sizeof(char)*15);
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memcpy(&request.port, buffer+sizeof(char)*16, sizeof(unsigned short));
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printf("{%s} received: bind_header{flag = %d; addr = '%s'; port = %d}\n", arg->entity, (int) request.flags, request.addr, request.port);
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/* (1) Envoi socket de communication (TCP)
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---------------------------------------------------------*/
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/* 1. Si flag manquant -> on quitte */
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if( !(request.flags&BINDHEAD_TCP) )
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return -1;
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strcpy(request.addr, SERV_HOST);
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request.port = TCP_LIST;
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/* [2] Envoi de la réponse
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=========================================================*/
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/* 1. On sérialise la réponse */
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bzero(buffer, MAX_BUF_LEN);
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memcpy(buffer, &request.flags, sizeof(char));
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memcpy(buffer+sizeof(char), &request.addr, sizeof(char)*INET_ADDRSTRLEN);
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memcpy(buffer+sizeof(char)*(1+INET_ADDRSTRLEN), &request.port, sizeof(unsigned short));
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/* 2. On envoie la réponse*/
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len = sizeof(struct sockaddr_in);
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if( sendto(arg->listenSock, buffer, BINDHDR_LEN/sizeof(char) + 1, 0, (struct sockaddr*) &clientInfo, len) < 0 ){
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printf("{%s} Impossible de répondre au client!\n", arg->entity);
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return -2;
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}
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printf("{%s} sent: bind_header{flag = %d; addr = '%s'; port = %d}\n", arg->entity, (int) request.flags, request.addr, request.port);
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return 0;
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}
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int multicastTerminal(struct middleware_arg* arg){
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/* [2] Envoi de la réponse
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=========================================================*/
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/* 1. On sérialise la réponse */
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bzero(buffer, MAX_BUF_LEN);
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bzero(buffer, MAX_BUF_LEN*sizeof(char));
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memcpy(buffer, &request.flags, sizeof(char));
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memcpy(buffer+sizeof(char), &request.addr, sizeof(char)*15);
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memcpy(buffer+sizeof(char)*16, &request.port, sizeof(unsigned short));
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@ -16,7 +16,7 @@
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#include "../header.h"
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#include "../network/udp/server.h"
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int multicastPlanes(struct middleware_arg* ARGS);
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// int multicastPlanes(struct middleware_arg* ARGS);
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int multicastTerminal(struct middleware_arg* ARGS);
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@ -0,0 +1,46 @@
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#include "client.h"
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int UDP_SOCKET(int* pSocket, const char* pAddr, const int pPort, struct sockaddr_in* pInfo){
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/* [0] Initialisation des variables
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=========================================================*/
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*pSocket = -1;
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struct timeval timeout;
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/* [1] Création de la socket
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=======================================================*/
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/* 1. Création de la socket */
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*pSocket = socket(AF_INET, SOCK_DGRAM, 0);
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/* 2. Gestion erreur */
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if( *pSocket < 0 )
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return -1;
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/* 3. Timeout */
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timeout.tv_sec = SOCK_TIMEOUT;
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timeout.tv_usec = 0;
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if( setsockopt(*pSocket, SOL_SOCKET, SO_RCVTIMEO|SO_SNDTIMEO, (char*) &timeout, sizeof(struct timeval) ) < 0 ){
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close(*pSocket);
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return -1;
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}
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/* [2] On définit les infos de la socket
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=========================================================*/
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/* (1) Reset des valeurs */
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bzero(pInfo, sizeof(struct sockaddr_in));
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/* (2) On définit les infos */
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pInfo->sin_family = AF_INET;
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pInfo->sin_port = htons(pPort);
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pInfo->sin_addr.s_addr = inet_addr(pAddr);
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/* [n] Code succès
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=========================================================*/
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return 0;
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}
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/**************************
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* UDP Client Dependency *
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***************************
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* Designed & Developed by *
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* Adrien Marquès *
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* <xdrm-brackets> *
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***************************
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* doowap31@gmail.com *
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**************************/
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#ifndef _LIB_NETWORK_UDP_CLIENT_H_
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#define _LIB_NETWORK_UDP_CLIENT_H_
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/* Remarque:
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*
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* Il s'agit en réalité d'un serveur UDP, mais en multicast les membres du groupe pour qui sont copiées les requêtes
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* sont par habitude appelés clients
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*
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*/
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#include "../../header.h"
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/* Créée une socket UDP + crée le sockaddr_in pour la suite
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*
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* ==IN==
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* @pAddr<const char*> Adresse du groupe multicast UDP
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* @pPort<const int> Port d'écoute UDP
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*
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* ==OUT==
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* @pSocket<int*> Pointeur sur le <int> à rempliR => contiendra un pointeur sur la socket créée
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* @pInfo<sockaddr_in*> Pointeur sur le <sockaddr_In> à remplir => contiendra un pointeur sur les infos server
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*
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* ==RETURN==
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* @status<int> -1 si erreur, sinon 0
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*
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* @history
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* [1] Création de la socket
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* [2] On définit les infos de la socket
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* [3] On crée la socket
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*
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*
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*/
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int UDP_SOCKET(int* pSocket, const char* pAddr, const int pPort, struct sockaddr_in* pInfo);
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#endif
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