/* create open */
int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen) {
int ret, new_sockfd;
struct sock *new_sk;
struct sock *sk;
socket_idesc_check(sockfd, sk);
if (((addr == NULL) && (addrlen != NULL))
|| ((addr != NULL) && (addrlen == NULL))
|| ((addrlen != NULL) && (*addrlen <= 0))) {
return SET_ERRNO(EINVAL);
}
ret = kaccept(sk, addr, addrlen, sk->idesc.idesc_flags, &new_sk);
if (ret < 0) {
return SET_ERRNO(-ret);
}
new_sockfd = get_index(new_sk);
if (new_sockfd < 0) {
ksocket_close(new_sk);
return SET_ERRNO(-new_sockfd);
}
return new_sockfd;
}
/*This function creates a server process listening at the socket rport*/
int tcp_serv (void *arg)
{
struct sockaddr_in relay_srv_addr, stClntAddr;
int iAddrlen;
int on = 1;
ksocket_t sockfd_chld;
/* kernel thread name*/
sprintf(current->comm, "krelaysrv");
allow_signal(SIGKILL);
allow_signal(SIGTERM);
/*Create socket*/
if ((SockfdRelayClntSide = ksocket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
printk(KERN_ERR "Can't create socket.");
memset(&relay_srv_addr, 0, sizeof(relay_srv_addr));
relay_srv_addr.sin_family = AF_INET;
relay_srv_addr.sin_addr.s_addr = INADDR_ANY;
relay_srv_addr.sin_port = htons(StrToInt((char *)(pListenPort->data)));
if (ksetsockopt(SockfdRelayClntSide, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0)
{
printk(KERN_ERR "ksetsockopt(SO_REUSEADDR) failed\n");
}
/*Bind our local addrress so that client can send*/
if (kbind(SockfdRelayClntSide, (struct sockaddr *) &relay_srv_addr, sizeof(relay_srv_addr)) < 0)
{
printk(KERN_ERR "Can't bind local address\n");
return -1;
}
/* Make socket a listening socket */
if (klisten(SockfdRelayClntSide, 15) < 0)
{
printk(KERN_ERR "Call to listen failed.");
return -1;
}
/* Loop infinitely to accept and service connections */
while ( 1 )
{
/* Wait for connection */
if ( (sockfd_chld = kaccept(SockfdRelayClntSide, (struct sockaddr *) &stClntAddr, &iAddrlen)) < 0 )
{
printk(KERN_ERR "Error calling accept()");
return -1;
}
ChldThdPid[iThdCnt] = kernel_thread ((void *)RedirectProc, sockfd_chld, 0);
if (iThdCnt == (MAX_THD_IDX - 1))
iThdCnt = 0;
else
iThdCnt++;
//Sleep for some time
// mdelay (1);
}
(void)kclose (SockfdRelayClntSide);
return -1; /* We shouldn't get here */
}
