public void connect(string host, int port)
{
IPHostEntry iphost;
IPAddress[] addr;
EndPoint ep;
//tag = 10; removed
root = 9;
afid = -1;
cwd = 7;
fid = 6;
ffid = 5;
mmsgsz = (uint)proto.MAXPKTSIZE;
mdatasz = mmsgsz - (uint)proto.IOHDRSIZE;
uname = "andrey";
aname = "";
fT = new Fcall();
pktT = new Byte[mmsgsz];
iphost = Dns.GetHostEntry(host);
addr = iphost.AddressList;
ep = new IPEndPoint(addr[0], port);
sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try {
sock.Connect(ep);
Console.WriteLine("Connected");
} catch (Exception ex) {
throw new ninepexception(ex.ToString());
}
}
public TcpListener serve(int port)
{
//IPHostEntry iphost;
//IPAddress[] addr;
//EndPoint ep;
TcpListener server;
// tag = 10; removed
root = 9;
afid = -1;
cwd = 7;
fid = 6;
ffid = 5;
mmsgsz = (uint)proto.MAXPKTSIZE;
mdatasz = mmsgsz - (uint)proto.IOHDRSIZE;
uname = "andrey";
aname = "";
fT = new Fcall();
pktR = new Byte[mmsgsz];
//iphost = Dns.GetHostEntry(host);
//addr = iphost.AddressList;
server = new TcpListener(IPAddress.Any, port);
return(server);
// sock = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
// try {
// sock.Connect(ep);
// Console.WriteLine("Connected");
// } catch(Exception ex) {
// throw new ninepexception(ex.ToString());
// }
}
public void do9pT()
{
convS2M(fT, pktT);
send9pmsg(pktT);
pktR = read9pmsg();
fR = convM2S(pktR);
}
public void do9p()
{
convS2M(fin, pktin);
send9pmsg(pktin);
pktout = read9pmsg();
fout = convM2S(pktout);
}
public void recieve(TcpClient client)
{
///convS2M(fT, pktT);
//send9pmsg(pktT);
pktT = read9pmsg();
//printPacket (pktT, "recieveT");
fT = convM2S(pktT);
}
public uint convS2M(Fcall f, Byte[] pkt)
{
uint size, i, pp;
size = sizeS2M(f);
if (size == 0)
{
return(0);
}
if (size > pkt.Length)
{
return(0);
}
pp = 0;
putuint(pkt, pp, size);
pp += (uint)proto.BIT32SZ;
pkt[pp] = f.type;
pp += (uint)proto.BIT8SZ;
putushort(pkt, pp, f.tag);
pp += (uint)proto.BIT16SZ;
switch (f.type)
{
default:
return(0);
case (byte)proto.Tversion:
putuint(pkt, pp, f.msize);
pp += (uint)proto.BIT32SZ;
putstring(pkt, pp, f.version);
pp += (uint)proto.BIT16SZ + (uint)f.version.Length;
break;
case (byte)proto.Tflush:
putushort(pkt, pp, f.oldtag);
pp += (uint)proto.BIT16SZ;
break;
case (byte)proto.Tauth:
putuint(pkt, pp, (uint)f.afid);
pp += (uint)proto.BIT32SZ;
putstring(pkt, pp, f.uname);
pp += (uint)proto.BIT16SZ + (uint)f.uname.Length;
putstring(pkt, pp, f.aname);
pp += (uint)proto.BIT16SZ + (uint)f.aname.Length;
break;
case (byte)proto.Tattach:
putuint(pkt, pp, (uint)f.fid);
pp += (uint)proto.BIT32SZ;
putuint(pkt, pp, (uint)f.afid);
pp += (uint)proto.BIT32SZ;
putstring(pkt, pp, f.uname);
pp += (uint)proto.BIT16SZ + (uint)f.uname.Length;
putstring(pkt, pp, f.aname);
pp += (uint)proto.BIT16SZ + (uint)f.aname.Length;
break;
case (byte)proto.Twalk:
putuint(pkt, pp, (uint)f.fid);
pp += (uint)proto.BIT32SZ;
putuint(pkt, pp, (uint)f.newfid);
pp += (uint)proto.BIT32SZ;
putushort(pkt, pp, f.nwname);
pp += (uint)proto.BIT16SZ;
if (f.nwname > (uint)proto.MAXWELEM)
{
return(0);
}
for (i = 0; i < f.nwname; i++)
{
putstring(pkt, pp, f.wname[i]);
pp += (uint)proto.BIT16SZ + (uint)f.wname[i].Length;
}
break;
case (byte)proto.Topen:
putuint(pkt, pp, (uint)f.fid);
pp += (uint)proto.BIT32SZ;
pkt[pp] = f.mode;
pp += (uint)proto.BIT8SZ;
break;
case (byte)proto.Tcreate:
putuint(pkt, pp, (uint)f.fid);
pp += (uint)proto.BIT32SZ;
putstring(pkt, pp, f.name);
pp += (uint)proto.BIT16SZ + (uint)f.name.Length;
putuint(pkt, pp, f.perm);
pp += (uint)proto.BIT32SZ;
pkt[pp] = f.mode;
pp += (uint)proto.BIT8SZ;
break;
case (byte)proto.Tread:
putuint(pkt, pp, (uint)f.fid);
pp += (uint)proto.BIT32SZ;
putulong(pkt, pp, f.offset);
pp += (uint)proto.BIT64SZ;
putuint(pkt, pp, f.count);
pp += (uint)proto.BIT32SZ;
break;
case (byte)proto.Twrite:
putuint(pkt, pp, (uint)f.fid);
pp += (uint)proto.BIT32SZ;
putulong(pkt, pp, f.offset);
pp += (uint)proto.BIT64SZ;
putuint(pkt, pp, f.count);
pp += (uint)proto.BIT32SZ;
Array.Copy(f.data, 0, pkt, pp, f.count);
pp += f.count;
break;
case (byte)proto.Tclunk:
case (byte)proto.Tremove:
case (byte)proto.Tstat:
putuint(pkt, pp, (uint)f.fid);
pp += (uint)proto.BIT32SZ;
break;
case (byte)proto.Twstat:
putuint(pkt, pp, (uint)f.fid);
pp += (uint)proto.BIT32SZ;
///putushort(pkt, pp, f.nstat); // this is included in f.stat
Array.Copy(f.stat, 0, pkt, pp, f.stat.Length);
pp += (uint)f.stat.Length;
break;
case (byte)proto.Rversion:
putuint(pkt, pp, f.msize);
pp += (uint)proto.BIT32SZ;
putstring(pkt, pp, f.version);
pp += (uint)proto.BIT16SZ + (uint)f.version.Length;
break;
case (byte)proto.Rerror:
putstring(pkt, pp, f.ename);
pp += (uint)proto.BIT16SZ + (uint)f.ename.Length;
break;
case (byte)proto.Rflush:
case (byte)proto.Rclunk:
case (byte)proto.Rremove:
case (byte)proto.Rwstat:
break;
case (byte)proto.Rauth:
putqid(pkt, pp, f.aqid);
pp += (uint)proto.QIDSZ;
break;
case (byte)proto.Rattach:
putqid(pkt, pp, f.qid);
pp += (uint)proto.QIDSZ;
break;
case (byte)proto.Rwalk:
putushort(pkt, pp, f.nwqid);
pp += (uint)proto.BIT16SZ;
if (f.nwqid > (uint)proto.MAXWELEM)
{
return(0);
}
for (i = 0; i < f.nwqid; i++)
{
putqid(pkt, pp, f.wqid[i]);
pp += (uint)proto.QIDSZ;
}
break;
case (byte)proto.Ropen:
case (byte)proto.Rcreate:
putqid(pkt, pp, f.qid);
pp += (uint)proto.QIDSZ;
putuint(pkt, pp, f.iounit);
pp += (uint)proto.BIT32SZ;
break;
case (byte)proto.Rread:
putuint(pkt, pp, f.count);
pp += (uint)proto.BIT32SZ;
Array.Copy(f.data, 0, pkt, pp, f.count);
pp += f.count;
break;
case (byte)proto.Rwrite:
putuint(pkt, pp, f.count);
pp += (uint)proto.BIT32SZ;
break;
case (byte)proto.Rstat:
//putushort(pkt, pp, f.nstat);
//pp += (uint)proto.BIT16SZ;
Array.Copy(f.stat, 0, pkt, pp, f.stat.Length);
//Console.WriteLine (BitConverter.ToString (f.stat, 0));
printPacket(pkt, "presentRstat");
pp += (uint)f.stat.Length;
break;
}
if (size != pp)
{
return(0);
}
return(size);
}
public uint sizeS2M(Fcall f)
{
uint n, i;
n = (uint)proto.BIT32SZ + (uint)proto.BIT8SZ + (uint)proto.BIT16SZ;
switch (f.type)
{
default:
return(0);
case (byte)proto.Tversion:
case (byte)proto.Rversion:
n += (uint)proto.BIT32SZ + (uint)proto.BIT16SZ + (uint)f.version.Length;
break;
case (byte)proto.Tflush:
n += (uint)proto.BIT16SZ;
break;
case (byte)proto.Tauth:
n += (uint)proto.BIT32SZ + 2 * (uint)proto.BIT16SZ + (uint)f.uname.Length + (uint)f.aname.Length;
break;
case (byte)proto.Tattach:
n += 2 * (uint)proto.BIT32SZ + 2 * (uint)proto.BIT16SZ + (uint)f.uname.Length + (uint)f.aname.Length;
break;
case (byte)proto.Twalk:
n += 2 * (uint)proto.BIT32SZ + (uint)proto.BIT16SZ;
for (i = 0; i < f.nwname; i++)
{
n += (uint)f.wname[i].Length + (uint)proto.BIT16SZ;
}
break;
case (byte)proto.Topen:
n += (uint)proto.BIT32SZ + (uint)proto.BIT8SZ;
break;
case (byte)proto.Tcreate:
n += 2 * (uint)proto.BIT32SZ + (uint)proto.BIT8SZ + (uint)proto.BIT16SZ + (uint)f.name.Length;
break;
case (byte)proto.Twrite:
n += 2 * (uint)proto.BIT32SZ + (uint)proto.BIT64SZ + f.count;
break;
case (byte)proto.Tread:
n += 2 * (uint)proto.BIT32SZ + (uint)proto.BIT64SZ;
break;
case (byte)proto.Tclunk:
case (byte)proto.Tremove:
case (byte)proto.Tstat:
case (byte)proto.Rwrite:
n += (uint)proto.BIT32SZ;
break;
case (byte)proto.Twstat:
//n += (uint)proto.BIT32SZ + 2 * (uint)proto.BIT16SZ + f.nstat;
n += (uint)proto.BIT32SZ + (uint)f.stat.Length;
break;
case (byte)proto.Rerror:
n += (uint)proto.BIT16SZ + (uint)f.ename.Length;
break;
case (byte)proto.Rflush:
case (byte)proto.Rclunk:
case (byte)proto.Rremove:
case (byte)proto.Rwstat:
break;
case (byte)proto.Rauth:
case (byte)proto.Rattach:
n += (uint)proto.QIDSZ;
break;
case (byte)proto.Rwalk:
n += (uint)proto.BIT16SZ + f.nwqid * (uint)proto.QIDSZ;
break;
case (byte)proto.Ropen:
case (byte)proto.Rcreate:
n += (uint)proto.QIDSZ + (uint)proto.BIT32SZ;
break;
case (byte)proto.Rread:
n += (uint)proto.BIT32SZ + f.count;
break;
case (byte)proto.Rstat:
n += (uint)f.stat.Length; //(uint)proto.BIT16SZ + f.nstat;
break;
}
return(n);
}
public Fcall convM2S(Byte[] pkt)
{
Byte[] buf;
uint len, pp, i;
Fcall f;
f = new Fcall();
buf = new Byte[(int)proto.BIT32SZ];
pp = 0;
if (pkt.Length < (int)proto.BIT32SZ + (int)proto.BIT8SZ + (int)proto.BIT16SZ)
{
return(f);
}
len = getuint(pkt, 0);
if (len < (int)proto.BIT32SZ + (int)proto.BIT8SZ + (int)proto.BIT16SZ)
{
return(f);
}
pp += (uint)proto.BIT32SZ;
f.type = pkt[pp];
pp += (uint)proto.BIT8SZ;
Array.Copy(pkt, pp, buf, (uint)proto.BIT32SZ - (uint)proto.BIT16SZ, (uint)proto.BIT16SZ);
f.tag = getushort(pkt, pp);
pp += (uint)proto.BIT16SZ;
switch (f.type)
{
default:
return(f);
case (byte)proto.Tversion:
if (pp + (uint)proto.BIT32SZ > len)
{
return(f);
}
Array.Copy(pkt, pp, buf, (uint)proto.BIT32SZ - (uint)proto.BIT16SZ, (uint)proto.BIT16SZ);
f.msize = getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.version = getstring(pkt, pp);
pp += (uint)f.version.Length;
break;
case (byte)proto.Tflush:
if (pp + (uint)proto.BIT16SZ > len)
{
return(f);
}
f.oldtag = getushort(pkt, pp);
pp += (uint)proto.BIT16SZ;
break;
case (byte)proto.Tauth:
if (pp + (uint)proto.BIT32SZ > len)
{
return(f);
}
f.afid = (int)getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.uname = getstring(pkt, pp);
pp += (uint)proto.BIT16SZ + (uint)f.uname.Length;
f.aname = getstring(pkt, pp);
pp += (uint)proto.BIT16SZ + (uint)f.aname.Length;
break;
case (byte)proto.Tattach:
if (pp + (uint)proto.BIT32SZ + (uint)proto.BIT32SZ > len)
{
return(f);
}
f.fid = (int)getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.afid = (int)getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.uname = getstring(pkt, pp);
pp += (uint)proto.BIT16SZ + (uint)f.uname.Length;
f.aname = getstring(pkt, pp);
pp += (uint)proto.BIT16SZ + (uint)f.aname.Length;
break;
case (byte)proto.Twalk:
if (pp + (uint)proto.BIT32SZ + (uint)proto.BIT32SZ + (uint)proto.BIT16SZ > len)
{
return(f);
}
f.fid = (int)getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.newfid = (int)getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.nwname = getushort(pkt, pp);
pp += (uint)proto.BIT16SZ;
if (f.nwname > (int)proto.MAXWELEM)
{
return(f);
}
f.wname = new string[f.nwname];
for (i = 0; i < f.nwname; i++)
{
f.wname[i] = getstring(pkt, pp);
pp += (uint)f.wname[i].Length + (uint)proto.BIT16SZ;
}
break;
case (byte)proto.Topen:
if (pp + (uint)proto.BIT32SZ + (uint)proto.BIT8SZ > len)
{
return(f);
}
f.fid = (int)getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.mode = pkt[pp];
pp += (uint)proto.BIT8SZ;
break;
case (byte)proto.Tcreate:
if (pp + (uint)proto.BIT32SZ > len)
{
return(f);
}
f.fid = (int)getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.name = getstring(pkt, pp);
pp += (uint)proto.BIT16SZ + (uint)f.name.Length;
if (pp + (uint)proto.BIT32SZ + (uint)proto.BIT8SZ > len)
{
return(f);
}
f.perm = getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.mode = pkt[pp];
pp += (uint)proto.BIT8SZ;
break;
case (byte)proto.Tread:
if (pp + (uint)proto.BIT32SZ + (uint)proto.BIT64SZ + (uint)proto.BIT32SZ > len)
{
return(f);
}
f.fid = (int)getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.offset = getulong(pkt, pp);
pp += (uint)proto.BIT64SZ;
f.count = getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
break;
case (byte)proto.Twrite:
if (pp + (uint)proto.BIT32SZ + (uint)proto.BIT64SZ + (uint)proto.BIT32SZ > len)
{
return(f);
}
f.fid = (int)getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.offset = getulong(pkt, pp);
pp += (uint)proto.BIT64SZ;
f.count = getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
if (pp + f.count > len)
{
return(f);
}
f.data = new Byte[f.count];
Array.Copy(pkt, pp, f.data, 0, f.count);
pp += f.count;
break;
case (byte)proto.Tclunk:
case (byte)proto.Tremove:
case (byte)proto.Tstat:
if (pp + (uint)proto.BIT32SZ > len)
{
return(f);
}
f.fid = (int)getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
break;
case (byte)proto.Twstat:
if (pp + (uint)proto.BIT32SZ + (uint)proto.BIT16SZ > len)
{
return(f);
}
f.fid = (int)getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.nstat = getushort(pkt, pp);
//pp += (uint)proto.BIT16SZ; convm2d assumes size is still in byte[]
if (pp + f.nstat + (uint)proto.BIT16SZ > len)
{
return(f);
}
f.stat = new Byte[f.nstat + (uint)proto.BIT16SZ];
Array.Copy(pkt, pp, f.stat, 0, f.nstat);
//Console.WriteLine ("f.nstat={0}, f.stat={1}", f.nstat, BitConverter.ToString(f.stat));
pp += (uint)f.stat.Length;
break;
case (byte)proto.Rversion:
if (pp + (uint)proto.BIT32SZ > len)
{
return(f);
}
f.msize = getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
f.version = getstring(pkt, pp);
pp += (uint)f.version.Length;
break;
case (byte)proto.Rerror:
f.ename = getstring(pkt, pp);
pp += (uint)f.ename.Length;
break;
case (byte)proto.Rauth:
f.aqid = getqid(pkt, pp);
pp += (uint)proto.QIDSZ;
break;
case (byte)proto.Rattach:
f.qid = getqid(pkt, pp);
pp += (uint)proto.QIDSZ;
break;
case (byte)proto.Rwalk:
if (pp + (uint)proto.BIT16SZ > len)
{
return(f);
}
f.nwqid = getushort(pkt, pp);
pp += (uint)proto.BIT16SZ;
if (f.nwqid > (int)proto.MAXWELEM)
{
return(f);
}
f.wqid = new Qid[f.nwqid];
for (i = 0; i < f.nwqid; i++)
{
f.wqid[i] = getqid(pkt, pp);
pp += (uint)proto.QIDSZ;
}
break;
case (byte)proto.Ropen:
case (byte)proto.Rcreate:
f.qid = getqid(pkt, pp);
pp += (uint)proto.QIDSZ;
if (pp + (uint)proto.BIT32SZ > len)
{
return(f);
}
f.iounit = getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
break;
case (byte)proto.Rread:
if (pp + (uint)proto.BIT32SZ > len)
{
return(f);
}
f.count = getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
if (pp + f.count > len)
{
return(f);
}
f.data = new Byte[f.count];
Array.Copy(pkt, pp, f.data, 0, f.count);
pp += f.count;
break;
case (byte)proto.Rwrite:
if (pp + (uint)proto.BIT32SZ > len)
{
return(f);
}
f.count = getuint(pkt, pp);
pp += (uint)proto.BIT32SZ;
break;
case (byte)proto.Rremove:
case (byte)proto.Rwstat:
break;
case (byte)proto.Rclunk:
case (byte)proto.Rflush:
if (pp + (uint)proto.BIT16SZ > len)
{
return(f);
}
f.tag = getushort(pkt, pp);
pp += (uint)proto.BIT16SZ;
break;
case (byte)proto.Rstat:
if (pp + (uint)proto.BIT16SZ > len)
{
return(f);
}
f.nstat = getushort(pkt, pp);
//pp += (uint)proto.BIT16SZ; convM2D assumes length is still in the message
if (pp + f.nstat > len)
{
return(f);
}
f.stat = new Byte[f.nstat + (uint)proto.BIT16SZ];
Array.Copy(pkt, pp, f.stat, 0, f.nstat + (uint)proto.BIT16SZ);
pp += (uint)f.nstat + (uint)proto.BIT16SZ;
break;
}
if (pp <= len)
{
f.status = 1;
}
return(f);
}
