/*
* Funzione che inizializza la socket di ascolto tcp.
* Ritorna 0 in caso successo e -1 in caso di errore.
*/
int set_listen_socket(unsigned short port) {
struct sockaddr_in my_addr;
int on = 1;
if ((tcp_listen = tcp_socket()) < 0) {
perror("set_listen_socket error - can't initialize tcp socket");
return -1;
}
if (setsockopt(tcp_listen, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0) {
perror("set_listen_socket error - setsockopt failed");
return -1;
}
printf("PORT: %d\n", ntohs(port));
set_addr_any(&my_addr, ntohs(port));
if (inet_bind(tcp_listen, &my_addr)){
perror ("set_listen_socket error - bind failed on tcp socket");
return -1;
}
if (listen(tcp_listen, BACKLOG) < 0) {
perror ("set_listen_socket error - listen failed on tcp socket");
return -1;
}
fd_add(tcp_listen);
return 0;
}
static int restore_tcp_conn_state(int sk, struct inet_sk_info *ii)
{
int ifd, aux;
TcpStreamEntry *tse;
pr_info("Restoring TCP connection id %x ino %x\n", ii->ie->id, ii->ie->ino);
ifd = open_image(CR_FD_TCP_STREAM, O_RSTR, ii->ie->ino);
if (ifd < 0)
goto err;
if (pb_read_one(ifd, &tse, PB_TCP_STREAM) < 0)
goto err_c;
if (restore_tcp_seqs(sk, tse))
goto err_c;
if (inet_bind(sk, ii))
goto err_c;
if (inet_connect(sk, ii))
goto err_c;
if (restore_tcp_opts(sk, tse))
goto err_c;
if (restore_tcp_queues(sk, tse, ifd))
goto err_c;
if (tse->has_nodelay && tse->nodelay) {
aux = 1;
if (restore_opt(sk, SOL_TCP, TCP_NODELAY, &aux))
goto err_c;
}
if (tse->has_cork && tse->cork) {
aux = 1;
if (restore_opt(sk, SOL_TCP, TCP_CORK, &aux))
goto err_c;
}
tcp_stream_entry__free_unpacked(tse, NULL);
close(ifd);
return 0;
err_c:
tcp_stream_entry__free_unpacked(tse, NULL);
close(ifd);
err:
return -1;
}
#include "inet_sockets.h"
#define BUF_SIZE 1024
int
main(int argc __attribute__((unused)),
char *argv[] __attribute__((unused)))
{
int retc;
int sfda, sfdb, sfdc;
struct sockaddr_in addr;
char buf[BUF_SIZE];
sfda = inet_bind("10001", SOCK_DGRAM, NULL);
if (sfda == -1) {
perror("inet_bind");
exit(EXIT_FAILURE);
}
sfdb = inet_bind("10002", SOCK_DGRAM, NULL);
if (sfdb == -1) {
perror("inet_bind");
exit(EXIT_FAILURE);
}
sfdc = inet_bind("10003", SOCK_DGRAM, NULL);
if (sfdc == -1) {
perror("inet_bind");
exit(EXIT_FAILURE);
