int connected_client(void *data) {
thread_data *input_data = (thread_data *) data;
TCPsocket socket = *input_data->socket;
int my_slot = input_data->slot;
int i = 0, connection_state = -1;
char handshake[10];
char *client_data[10] = { NULL };
char msg[10];
int x = 0, y = 0, id = 0;
double angle = 0;
sprintf(handshake, "#|%d|#", *input_data->id);
send_data(handshake, socket, "#|%d|#");
SDL_Delay(10);
node * tmp = input_data->root;
for (i = 0; i < 11; i++) {
if (tmp != NULL) {
sprintf(msg, "*%d|%d|%d|%d*", tmp->astroid.id, tmp->astroid.x,
tmp->astroid.y, tmp->astroid.velocity);
send_data(msg, socket, "*%d|%d|%d|%d*");
printf("Asteroid #%d: %s\n", tmp->astroid.id, msg);
tmp = tmp->next;
SDL_Delay(10);
}
}
printf("Server: Start receiving data\n");
ready = 1;
while (1) {
//SDL_Delay(10);
connection_state = read_data(msg, socket, &id, &x, &y, &angle,
"#%d|%d|%d|%d|%d|%d#");
if (connection_state == -1) {
if (forward_data(msg, id, "#%d|%d|%d|%lf#") == -1) {
//return 0;
}
} else if (read_bullet_data(msg, "?%d|%d|%d|%d|%d?") == -1) {
if (forward_data(msg, id, "#%d|%d|%d|%lf#") == -1) {
//return 0;
}
} else if (read_astroid_data(msg, "*%d|%d|%d*", input_data->root)
== -1) {
printf("YO!\n");
if (forward_data(msg, id, "#%d|%d|%d|%lf#") == -1) {
//return 0;
}
} else if (connection_state == 0) {
// Connection is lost! Kill thread!
count_thread[my_slot] = 0;
SDLNet_TCP_Close(socket);
*input_data->id -= 1;
printf("Server: %d", *input_data->id);
return 0;
}
}
return 0;
}
extern Success send_command (Stream s, Connection_Id id)
{
SEND_HEADER (A_DATA);
if (read_reply (s) == NONE)
return ERROR;
if (forward_data (0, s, TRUE) == OK &&
forward_data (s, 1, FALSE) == OK)
return OK;
else
return ERROR;
}
int write_data_sch(struct object_descriptor *descr, int offset, int size, const void *buffer) {
struct write_packet p;
int res, wsize;
res = io_write(descr, offset, size, buffer);
if (res >= 0) {
if (offset != -1)
descr->meta.size = descr->meta.size > (unsigned int)(offset + size) ? descr->meta.size : offset + size;
else
descr->meta.size += size;
write_metadata(descr);
}
if (res < 0) {
p.obj = descr->id;
p.offset = offset;
p.size = size;
for (unsigned int i = 0; i < peers.size(); i++) {
pthread_mutex_lock(&peer_locks[i]);
forward_data(peer_srv_socks[i], OP_WRITE, OS_MASTER, &p, sizeof(p), buffer, size);
res = receive_reply(peer_srv_socks[i], &wsize, sizeof(wsize));
pthread_mutex_unlock(&peer_locks[i]);
if (res >= 0)
return wsize;
}
}
return res;
}
static int rtp_data_bts(struct osmo_fd *fd, unsigned int what)
{
char buf[4096];
struct sockaddr_in addr;
struct mgcp_endpoint *endp;
int rc, proto;
endp = (struct mgcp_endpoint *) fd->data;
rc = receive_from(endp, fd->fd, &addr, buf, sizeof(buf));
if (rc <= 0)
return -1;
proto = fd == &endp->bts_end.rtp ? PROTO_RTP : PROTO_RTCP;
/* We have no idea who called us, maybe it is the BTS. */
/* it was the BTS... */
discover_bts(endp, proto, &addr);
if (memcmp(&endp->bts_end.addr, &addr.sin_addr, sizeof(addr.sin_addr)) != 0) {
LOGP(DMGCP, LOGL_ERROR,
"Data from wrong bts %s on 0x%x\n",
inet_ntoa(addr.sin_addr), ENDPOINT_NUMBER(endp));
return -1;
}
if (endp->bts_end.rtp_port != addr.sin_port &&
endp->bts_end.rtcp_port != addr.sin_port) {
LOGP(DMGCP, LOGL_ERROR,
"Data from wrong bts source port %d on 0x%x\n",
ntohs(addr.sin_port), ENDPOINT_NUMBER(endp));
return -1;
}
/* throw away the dummy message */
if (rc == 1 && buf[0] == DUMMY_LOAD) {
LOGP(DMGCP, LOGL_NOTICE, "Filtered dummy from bts on 0x%x\n",
ENDPOINT_NUMBER(endp));
return 0;
}
/* do this before the loop handling */
endp->bts_end.packets += 1;
endp->bts_end.octets += rc;
forward_data(fd->fd, &endp->taps[MGCP_TAP_BTS_IN], buf, rc);
switch (endp->type) {
case MGCP_RTP_DEFAULT:
return send_to(endp, DEST_NETWORK, proto == PROTO_RTP, &addr,
buf, rc);
case MGCP_RTP_TRANSCODED:
return send_transcoder(&endp->trans_bts, endp->cfg,
proto == PROTO_RTP, buf, rc);
}
LOGP(DMGCP, LOGL_ERROR, "Bad MGCP type %u on endpoint %u\n",
endp->type, ENDPOINT_NUMBER(endp));
return 0;
}
void create_replica(int node, oid_t id) {
struct create_packet pc;
struct write_packet pw;
struct object_descriptor obj;
void *buffer;
read_metadata(id, &obj);
buffer = malloc(obj.meta.size);
read_data(&obj, 0, obj.meta.size, buffer);
pc.obj = id;
pc.type = obj.meta.type;
strncpy((char*)pc.name, (const char*)obj.meta.name, 256);
pw.obj = id;
pw.offset = 0;
pw.size = obj.meta.size;
lock_object(id);
pthread_mutex_lock(&peer_locks[node]);
forward_packet(peer_srv_socks[node], OP_CREATE, OS_SLAVE, &pc, sizeof(pc));
receive_reply(peer_srv_socks[node], NULL, 0);
forward_data(peer_srv_socks[node], OP_WRITE, OS_SLAVE, &pw, sizeof(pw), buffer, pw.size);
receive_reply(peer_srv_socks[node], NULL, 0);
pthread_mutex_unlock(&peer_locks[node]);
unlock_object(id);
free(buffer);
}
void reqc_write(int sock, struct write_packet *p, const void *buffer) {
struct object_descriptor obj;
int wsize;
lock_object(p->obj);
if (read_metadata(p->obj, &obj)) {
reqm_write(sock, p, buffer, 1);
return;
}
for (unsigned int i = 0; i < peers.size(); i++) {
pthread_mutex_lock(&peer_locks[i]);
forward_data(peer_srv_socks[i], OP_WRITE, OS_MASTER, p, sizeof(*p), buffer, p->size);
wsize = receive_reply(peer_srv_socks[i], &wsize, sizeof(wsize));
pthread_mutex_unlock(&peer_locks[i]);
if (wsize >= 0) {
unlock_object(p->obj);
send_reply(sock, &wsize, sizeof(wsize));
return;
}
}
unlock_object(p->obj);
send_error(sock, ENOENT);
}
int mgcp_send(struct mgcp_endpoint *endp, int dest, int is_rtp,
struct sockaddr_in *addr, char *buf, int rc)
{
struct mgcp_trunk_config *tcfg = endp->tcfg;
struct mgcp_rtp_end *rtp_end;
struct mgcp_rtp_state *rtp_state;
int tap_idx;
/* For loop toggle the destination and then dispatch. */
if (tcfg->audio_loop)
dest = !dest;
/* Loop based on the conn_mode, maybe undoing the above */
if (endp->conn_mode == MGCP_CONN_LOOPBACK)
dest = !dest;
if (dest == MGCP_DEST_NET) {
rtp_end = &endp->net_end;
rtp_state = &endp->bts_state;
tap_idx = MGCP_TAP_NET_OUT;
} else {
rtp_end = &endp->bts_end;
rtp_state = &endp->net_state;
tap_idx = MGCP_TAP_BTS_OUT;
}
if (!rtp_end->output_enabled)
rtp_end->dropped_packets += 1;
else if (is_rtp) {
int cont;
int nbytes = 0;
int len = rc;
do {
cont = endp->cfg->rtp_processing_cb(endp, rtp_end,
buf, &len, RTP_BUF_SIZE);
if (cont < 0)
break;
mgcp_patch_and_count(endp, rtp_state, rtp_end, addr, buf, len);
forward_data(rtp_end->rtp.fd, &endp->taps[tap_idx],
buf, len);
rc = mgcp_udp_send(rtp_end->rtp.fd,
&rtp_end->addr,
rtp_end->rtp_port, buf, len);
if (rc <= 0)
return rc;
nbytes += rc;
len = cont;
} while (len > 0);
return nbytes;
} else if (!tcfg->omit_rtcp) {
return mgcp_udp_send(rtp_end->rtcp.fd,
&rtp_end->addr,
rtp_end->rtcp_port, buf, rc);
}
return 0;
}
static int rtp_data_net(struct osmo_fd *fd, unsigned int what)
{
char buf[4096];
struct sockaddr_in addr;
struct mgcp_endpoint *endp;
int rc, proto;
endp = (struct mgcp_endpoint *) fd->data;
rc = receive_from(endp, fd->fd, &addr, buf, sizeof(buf));
if (rc <= 0)
return -1;
if (memcmp(&addr.sin_addr, &endp->net_end.addr, sizeof(addr.sin_addr)) != 0) {
LOGP(DMGCP, LOGL_ERROR,
"Endpoint 0x%x data from wrong address %s vs. ",
ENDPOINT_NUMBER(endp), inet_ntoa(addr.sin_addr));
LOGPC(DMGCP, LOGL_ERROR,
"%s\n", inet_ntoa(endp->net_end.addr));
return -1;
}
if (endp->net_end.rtp_port != addr.sin_port &&
endp->net_end.rtcp_port != addr.sin_port) {
LOGP(DMGCP, LOGL_ERROR,
"Data from wrong source port %d on 0x%x\n",
ntohs(addr.sin_port), ENDPOINT_NUMBER(endp));
return -1;
}
/* throw away the dummy message */
if (rc == 1 && buf[0] == DUMMY_LOAD) {
LOGP(DMGCP, LOGL_NOTICE, "Filtered dummy from network on 0x%x\n",
ENDPOINT_NUMBER(endp));
return 0;
}
proto = fd == &endp->net_end.rtp ? PROTO_RTP : PROTO_RTCP;
endp->net_end.packets += 1;
endp->net_end.octets += rc;
forward_data(fd->fd, &endp->taps[MGCP_TAP_NET_IN], buf, rc);
switch (endp->type) {
case MGCP_RTP_DEFAULT:
return send_to(endp, DEST_BTS, proto == PROTO_RTP, &addr,
buf, rc);
case MGCP_RTP_TRANSCODED:
return send_transcoder(&endp->trans_net, endp->cfg,
proto == PROTO_RTP, buf, rc);
}
LOGP(DMGCP, LOGL_ERROR, "Bad MGCP type %u on endpoint %u\n",
endp->type, ENDPOINT_NUMBER(endp));
return 0;
}
static int send_to(struct mgcp_endpoint *endp, int dest, int is_rtp,
struct sockaddr_in *addr, char *buf, int rc)
{
struct mgcp_trunk_config *tcfg = endp->tcfg;
/* For loop toggle the destination and then dispatch. */
if (tcfg->audio_loop)
dest = !dest;
/* Loop based on the conn_mode, maybe undoing the above */
if (endp->conn_mode == MGCP_CONN_LOOPBACK)
dest = !dest;
if (dest == DEST_NETWORK) {
if (is_rtp) {
patch_and_count(endp, &endp->bts_state,
endp->net_end.payload_type,
addr, buf, rc);
forward_data(endp->net_end.rtp.fd,
&endp->taps[MGCP_TAP_NET_OUT], buf, rc);
return udp_send(endp->net_end.rtp.fd, &endp->net_end.addr,
endp->net_end.rtp_port, buf, rc);
} else if (!tcfg->omit_rtcp) {
return udp_send(endp->net_end.rtcp.fd, &endp->net_end.addr,
endp->net_end.rtcp_port, buf, rc);
}
} else {
if (is_rtp) {
patch_and_count(endp, &endp->net_state,
endp->bts_end.payload_type,
addr, buf, rc);
forward_data(endp->bts_end.rtp.fd,
&endp->taps[MGCP_TAP_BTS_OUT], buf, rc);
return udp_send(endp->bts_end.rtp.fd, &endp->bts_end.addr,
endp->bts_end.rtp_port, buf, rc);
} else if (!tcfg->omit_rtcp) {
return udp_send(endp->bts_end.rtcp.fd, &endp->bts_end.addr,
endp->bts_end.rtcp_port, buf, rc);
}
}
return 0;
}
int main(int argc, const char * argv[]) {
/* Check arguments */
if(argc != 3) {
printf("Usage: %s <FROM_PORT> <TO_PORT>\n", argv[0]);
exit(-1);
}
forward_data(atoi(argv[1]), atoi(argv[2]));
}
void ForwardSocket::connection_handle() {
conn_receive();
/* Forward local socket data over the channel to the client */
forward_data();
if (_fd == -1) {
struct CMD_ClosePort cmd;
cmd.type = CMD_CLOSE_PORT;
cmd.id = _id;
printf("Send closeport %d\n", cmd.id);
_parent->txfifo_in( (unsigned char*)&cmd, sizeof(cmd) );
}
}
/*
* Setup networking
* Setup pty
*
* Forward
*/
int main(int argc, char** argv)
{
if (argc < 2)
{
printf("Usage: ./pty_forward <host> <port>\n");
return EXIT_FAILURE;
}
int socket_fd = socket(PF_INET, SOCK_STREAM, 0);
if (socket_fd < 0) {
perror("Failed to create network socket");
return EXIT_FAILURE;
}
struct hostent* host = gethostbyname(argv[1]);
if (!host) {
printf("Failed to get the hostent\n");
return EXIT_FAILURE;
}
struct sockaddr_in addr = { 0, };
addr.sin_family = PF_INET;
addr.sin_port = htons(atoi(argv[2]));
addr.sin_addr = *(struct in_addr*)host->h_addr;
int result = connect(socket_fd, (struct sockaddr*)&addr, sizeof(addr));
if (result < 0) {
perror("Connection failed");
return EXIT_FAILURE;
}
/*
* PTY code
*/
int master_fd;
int slave_fd;
char slave_name[PATH_MAX];
result = openpty(&master_fd, &slave_fd, slave_name, NULL, NULL);
if (result < 0) {
perror("openpty()");
return EXIT_FAILURE;
}
printf("You can now use '%s' %d %d %d\n", slave_name, socket_fd, master_fd, slave_fd);
forward_data(socket_fd, master_fd);
return EXIT_SUCCESS;
}
static gboolean client_handler(GIOChannel *channel, GIOCondition cond,
gpointer user_data)
{
if (forward_data(cond, client_fd, device_fd) == FALSE) {
g_printerr("Closing client connection\n");
if (device_watch > 0) {
g_source_remove(device_watch);
device_watch = 0;
}
client_watch = 0;
return FALSE;
}
return TRUE;
}
void reqm_write(int sock, struct write_packet *p, const void *buffer, int unlock) {
struct object_descriptor obj;
int wsize, node;
if (!read_metadata(p->obj, &obj)) {
if (unlock)
unlock_object(p->obj);
send_error(sock, ENOENT);
return;
}
wsize = write_data(&obj, p->offset, p->size, buffer);
if (p->offset != -1)
obj.meta.size = obj.meta.size > p->offset + p->size ? obj.meta.size : p->offset + p->size;
else
obj.meta.size += p->size;
write_metadata(&obj);
pthread_mutex_lock(&replicas_lock);
for (unsigned int i = 0; i < replicas.size(); i++) {
if (!memcmp(&replicas[i].id, &p->obj, sizeof(oid_t))) {
node = replicas[i].node;
pthread_mutex_lock(&peer_locks[node]);
forward_data(peer_srv_socks[node], OP_WRITE, OS_SLAVE, p, sizeof(*p), buffer, p->size);
receive_reply(peer_srv_socks[node], NULL, 0);
pthread_mutex_unlock(&peer_locks[node]);
}
}
pthread_mutex_unlock(&replicas_lock);
if (unlock)
unlock_object(p->obj);
send_reply(sock, &wsize, sizeof(wsize));
}
int main(int argc, char **argv)
{
opterr = 0;
int option_index;
int chr;
char serial_node[30] = "\0";
int network_port;
int show_help = 0;
int modem_fd = 0, socket_fd = 0;
struct option opts[] = {
{ "node", required_argument, 0, 'n' },
{ "port", required_argument, 0, 'p' },
{ "help", no_argument, 0, 'h' },
};
while (1) {
option_index = 0;
chr = getopt_long(argc, argv, "n:p:h", opts, &option_index);
if (chr == -1)
break;
switch (chr) {
case 'h':
show_help = 1;
break;
case 'n':
snprintf(serial_node, 30, "%s", optarg);
break;
case 'p':
network_port = atoi(optarg);
break;
default:
break;
}
}
if (show_help || network_port == 0 || serial_node[0] == 0) {
printf("usage: samsung_ipc_forward -n <device node> -p <network port>\n");
exit(1);
}
socket_fd = init_network_connection(network_port);
if (socket_fd < 0)
return EXIT_FAILURE;
modem_fd = open(serial_node, O_RDWR | O_NOCTTY | O_NONBLOCK);
int connection_fd = -1;
struct sockaddr_in addr = { 0, };
socklen_t length = sizeof(addr);
while ((connection_fd = accept(socket_fd, (struct sockaddr*) &addr, &length)) >= 0) {
printf("New connection from: '%s'\n", inet_ntoa(addr.sin_addr));
forward_data(modem_fd, connection_fd);
close(connection_fd);
}
close(modem_fd);
close(socket_fd);
return 0;
socket_init_failed:
close(socket_fd);
return EXIT_FAILURE;
}
/* 处理客户端的连接 */
void handle_client(int client_sock, struct sockaddr_in client_addr)
{
int is_http_tunnel = 0;
if(strlen(remote_host) == 0) /* 未指定远端主机名称从http 请求 HOST 字段中获取 */
{
#ifdef DEBUG
LOG(" ============ handle new client ============\n");
LOG(">>>Header:%s\n",header_buffer);
#endif
if(read_header(client_sock,header_buffer) < 0)
{
LOG("Read Http header failed\n");
return;
} else
{
char * p = strstr(header_buffer,"CONNECT"); /* 判断是否是http 隧道请求 */
if(p)
{
LOG("receive CONNECT request\n");
is_http_tunnel = 1;
}
if(strstr(header_buffer,"GET /mproxy") >0 )
{
LOG("====== hand mproxy info request ====");
//返回mproxy的运行基本信息
hand_mproxy_info_req(client_sock,header_buffer);
return;
}
if(extract_host(header_buffer) < 0)
{
LOG("Cannot extract host field,bad http protrotol");
return;
}
LOG("Host:%s port: %d io_flag:%d\n",remote_host,remote_port,io_flag);
}
}
if ((remote_sock = create_connection()) < 0) {
LOG("Cannot connect to host [%s:%d]\n",remote_host,remote_port);
return;
}
if (fork() == 0) { // 创建子进程用于从客户端转发数据到远端socket接口
if(strlen(header_buffer) > 0 && !is_http_tunnel)
{
forward_header(remote_sock); //普通的http请求先转发header
}
forward_data(client_sock, remote_sock);
exit(0);
}
if (fork() == 0) { // 创建子进程用于转发从远端socket接口过来的数据到客户端
if(io_flag == W_S_ENC)
{
io_flag = R_C_DEC; //发送请求给服务端进行编码，读取服务端的响应则进行解码
} else if (io_flag == R_C_DEC)
{
io_flag = W_S_ENC; //接收客户端请求进行解码，那么响应客户端请求需要编码
}
if(is_http_tunnel)
{
send_tunnel_ok(client_sock);
}
forward_data(remote_sock, client_sock);
exit(0);
}
close(remote_sock);
close(client_sock);
}