void Client::parseTransmit()
{
qDebug() << "parseTransmit():";
if ( !(this->status_ == ST_ADMIN ||
this->status_ == ST_CLIENT))
{
qDebug() << "cmd not allowed";
this->disconnectFromHost();
return;
}
if (buf_.size()<9) // TODO: remove magic number
return; // not all data avaliable
qDebug() << "buf size" << buf_.size();
qDebug() << "packet len" << getPacketLength(buf_);
if (buf_.size()<getPacketLength(buf_)+9) // TODO: remove magic number
return; // not all data avaliable
qint16 clientId=getClientId(buf_);
QByteArray cmd=getPacketData(buf_);
QByteArray response;
response.append(CSPYP1_PROTOCOL_ID);
response.append(CSPYP1_PROTOCOL_VERSION);
response.append(CMD1_TRANSMIT);
response.append(toBytes(getId()));
response.append(toBytes(cmd.size()));
response.append(cmd);
auto destClient = getServer()->searchClient(clientId);
qDebug() << "Client to ID:" << clientId;
if (destClient != getServer()->clientEnd())
{
qDebug() << "transmiting data..";
destClient.value()->send(response);
}
buf_=buf_.right(buf_.size() - (getPacketLength(buf_) + 9));
if (buf_.size() > 0)
onDataReceived(); // If something in buffer - parse again
}
int sec_url_filter_slow(struct nf_queue_entry *entry, unsigned int queuenum)
{
if (entry != NULL)
{
if (filterMode)
{
struct sk_buff *skb = entry->skb;
char *request = NULL;
tcp_TrackInfo *gettingNode = NULL;
tcp_TrackInfo *notifyNode = NULL;
if (skb != NULL)
{
struct iphdr *iph = (struct iphdr*)ip_hdr(skb);
if (iph != NULL)
{
if (iph->protocol == 6)
{
struct tcphdr *tcph = (struct tcphdr *)skb_transport_header(skb);
if (tcph!= NULL)
{
notifyNode = find_tcp_TrackInfo(notifying_TrackInfo, skb, 0);
if (notifyNode != NULL) // If this is already notified to user, drop it.
{
unsigned int verdict = NF_DROP;
nf_reinject(entry, verdict);
return 0;
}
gettingNode = find_tcp_TrackInfo(getting_TrackInfo, skb, 1); // Find previous TCP Track Info and remove from list
if (gettingNode == NULL) // No previous Info
{
gettingNode = isURL(skb); // If this is URL Request then make TCP Track Info
}
if (gettingNode != NULL)
{
request = getPacketData(skb, gettingNode); // Get Packet
if (request != NULL) // If there is packet data
{
getURL(request, gettingNode); // Get URL and update status
kfree(request);
request = NULL;
if (gettingNode->status == GOT_FULL_URL) // If get Full URL, then make notify info
{
makeNotifyInfo(gettingNode);
if ((exceptionURL != NULL) && (gettingNode->url !=NULL))
{
if (strstr(&gettingNode->url[sizeof(URL_Info)], exceptionURL) != NULL) // This is exception URL
{
free_tcp_TrackInfo(gettingNode);
nf_reinject(entry, NF_ACCEPT);
return 0;
}
}
gettingNode->q_entry = entry;
add_tcp_TrackInfo(notifying_TrackInfo, gettingNode);
wake_up_interruptible(&user_noti_Q); // Wake Up read function
return 0;
}
}
add_tcp_TrackInfo_ToHead(getting_TrackInfo, gettingNode);
}
}
}
}
}
}
nf_reinject(entry, NF_ACCEPT);
}
return 0;
}