public static void dofid(ninepc.ninep protocol, ushort tag, int fid, int newfid)
{
int cfid;
if (fid != root && newfid != ffid)
{
protocol.doTclunk(tag, cwd);
cfid = cwd;
cwd = fid;
fid = cfid;
}
}
public static void Main(string[] args)
{
ninepc.ninep protocol;
string cmd, server;
int i;
uint offset;
Dir[] dirs;
string[] lss, lsc;
ushort tag = 10;
int fid = 6;
ffid = 5;
root = 9;
cwd = 7;
protocol = new ninepc.ninep();
//server = "sources.cs.bell-labs.com";
server = "127.0.0.1";
try {
//test.connect (server, 564);
protocol.connect(server, 9999);
protocol.doTversion(65535);
protocol.doTauth(tag++);
protocol.doTattach(tag++, root);
protocol.doTwalk(tag++, root, cwd, new string[0]);
dofid(protocol, tag++, root, cwd);
for (;;)
{
Console.Write("{0}% ", server);
cmd = Console.ReadLine();
if (cmd.StartsWith("ls"))
{
protocol.doTwalk(tag++, cwd, ffid, new string[] { "." });
dofid(protocol, tag++, cwd, ffid);
//printPacket (test.pktR, "R");
protocol.doTopen(tag++, ffid, 0x00);
//printPacket (test.pktR, "R");
protocol.doTread(tag++, ffid, 0, (uint)protocol.mdatasz);
//printPacket (test.pktR, "R");
//printPacket (test.pktT, "T");
//printPacket (test.pktR, "R");
dirs = protocol.dols(protocol.readbuf);
foreach (Dir d in dirs)
{
Console.WriteLine("{0} {1} {2} {3} {4}", protocol.modestr(d.mode), d.uid,
d.gid, d.length, d.name);
}
protocol.doTclunk(tag++, ffid);
continue;
}
if (cmd.StartsWith("cd"))
{
lss = cmd.Split(" ".ToCharArray());
if (lss.Length < 2)
{
continue;
}
lsc = lss [1].Split("/".ToCharArray());
protocol.doTwalk(tag++, cwd, fid, lsc);
dofid(protocol, tag++, cwd, fid);
continue;
}
if (cmd.StartsWith("cat"))
{
lss = cmd.Split(" ".ToCharArray());
Array.Copy(lss, 1, lss, 0, lss.Length - 1);
for (i = 0; i < (lss.Length - 1); i++)
{
offset = 0;
protocol.doTwalk(tag++, cwd, ffid, new string[] { lss [i] });
dofid(protocol, tag++, cwd, ffid);
protocol.doTstat(tag++, ffid);
protocol.doTopen(tag++, ffid, 0x00);
protocol.doTread(tag++, ffid, offset, (uint)protocol.dir.length);
Console.WriteLine(protocol.convstring(protocol.readbuf));
protocol.doTclunk(tag++, ffid);
}
}
if (cmd.StartsWith("rm"))
{
lss = cmd.Split(" ".ToCharArray());
Array.Copy(lss, 1, lss, 0, lss.Length - 1);
for (i = 0; i < (lss.Length - 1); i++)
{
offset = 0;
protocol.doTwalk(tag++, cwd, ffid, new string[] { lss [i] });
dofid(protocol, tag++, cwd, ffid);
protocol.doTremove(tag++, ffid);
}
}
if (cmd.StartsWith("touch"))
{
lss = cmd.Split(" ".ToCharArray());
Array.Copy(lss, 1, lss, 0, lss.Length - 1);
for (i = 0; i < (lss.Length - 1); i++)
{
offset = 0;
protocol.doTcreate(tag++, cwd, lss[i], 0x0777, (byte)proto.ORDWR);
}
}
if (cmd.StartsWith("mkdir"))
{
lss = cmd.Split(" ".ToCharArray());
Array.Copy(lss, 1, lss, 0, lss.Length - 1);
for (i = 0; i < (lss.Length - 1); i++)
{
offset = 0;
protocol.doTcreate(tag++, cwd, lss[i], 0x00000777 | (uint)proto.DMDIR, (byte)proto.OREAD);
}
}
if (cmd.StartsWith("wstat"))
{
lss = cmd.Split(" ".ToCharArray());
//Array.Copy (lss, 1, lss, 0, lss.Length - 1);
Array.ForEach(lss, x => Console.WriteLine(x));
protocol.doTwalk(tag++, cwd, ffid, new string[] { lss [1] });
dofid(protocol, tag++, cwd, ffid);
Inode node = createnode(lss[2], 0x00000777, lss[3], lss[4], (byte)proto.QTFILE);
node.dir.length = 0;
Console.WriteLine("{0} {1} {2} {3} {4}", protocol.modestr(node.dir.mode), node.dir.uid,
node.dir.gid, node.dir.length, node.dir.name);
protocol.doTwstat(tag++, protocol.ffid, node.dir);
protocol.doTclunk(tag++, protocol.ffid);
}
if (cmd.StartsWith("q"))
{
break;
}
}
protocol.doTclunk(tag++, cwd);
protocol.doTclunk(tag++, root);
protocol.shutdown();
} catch (Exception ex) {
Console.WriteLine("Error main: {0}", ex.ToString());
}
}
public static void Main(string[] args)
{
//SERVER CODE: if you want the client, comment until CLIENT CODE
ninepc.ninep protocol;
protocol = new ninepc.ninep();
string clientname = "unset";
//string cmd, server;
TcpListener server = protocol.serve(9999);
Inode root = createnode("/", 0x00000755, "jeb", "kerman", (byte)proto.QTDIR);
root.data = new Byte[0];
Inode testdir = createnode("testdir", 0x00000755, "jeb", "kerman", (byte)proto.QTDIR);
testdir.data = new Byte[0];
testdir.parent = root;
root.children.Add(testdir);
Qid[] wqid = new Qid[10]; //max number of walks... increase if needed.
UTF8Encoding utf8 = new UTF8Encoding();
Byte[] strdata = utf8.GetBytes("This is the file contents");
Inode child = createnode("test", 0x00000755, "valerie", "kerman", (byte)proto.QTFILE);
child.data = strdata;
child.dir.length = (ulong)strdata.Length;
child.dir.qid.vers++;
testdir.children.Add(child);
child.parent = testdir;
server.Start();
//ep = new IPEndPoint(addr[0], port);
while (true)
{
TcpClient client = protocol.AcceptTcpClient(server);
while (client.Connected)
{
protocol.recieve(client);
printPacket(protocol.pktT, "T");
ushort tag = protocol.fT.tag;
int fid = protocol.fT.fid;
switch (protocol.fT.type)
{
case (byte)proto.Tstat:
Inode statnode;
if (!fidlist.TryGetValue(fid, out statnode))
{
protocol.doRerror(tag, "unrecognized fid");
}
protocol.doRstat(tag, statnode.dir);
break;
case (byte)proto.Topen:
Inode opnode;
if (!fidlist.TryGetValue(fid, out opnode))
{
protocol.doRerror(tag, "unrecognized fid");
}
//permissions stuff goes here
opnode.mode = protocol.fT.mode;
protocol.doRopen(tag, opnode.dir.qid, protocol.mmsgsz);
break;
case (byte)proto.Tread:
Inode rnode;
uint count;
Byte[] data;
if (!fidlist.TryGetValue(fid, out rnode))
{
protocol.doRerror(tag, "unrecognized fid");
}
count = protocol.fT.count;
if (count + protocol.fT.offset > rnode.dir.length)
{
count = (uint)rnode.dir.length - (uint)protocol.fT.offset;
}
if (rnode.dir.qid.type == (byte)proto.QTDIR)
{
List <Byte[]> dirdata = new List <Byte[]> ();
int len = 0;
foreach (Inode i in rnode.children)
{
Byte[] temp = new Byte[protocol.sizeD2M(i.dir)];
protocol.convD2M(i.dir, temp);
//printPacket (temp, "D");
len += temp.Length;
dirdata.Add(temp);
}
data = new Byte[len];
int pp = 0;
foreach (Byte[] b in dirdata)
{
System.Buffer.BlockCopy(b, 0, data, pp, b.Length);
pp += b.Length;
}
protocol.doRread(tag, (uint)data.Length, data);
}
else
{
if (count > 0)
{
data = new Byte[count];
Array.Copy(rnode.data, (int)protocol.fT.offset, data, 0, count);
protocol.doRread(tag, count, data);
}
else
{
protocol.doRread(tag, 0, new Byte[0]);
}
}
break;
case (byte)proto.Tauth:
clientname = protocol.fT.uname;
protocol.doRerror(tag, "u9fs authnone: no authentication required");
break;
case (byte)proto.Tattach:
if (protocol.fT.aname.Equals(""))
{
if (fidlist.ContainsKey(fid) == false)
{
fidlist.Add(fid, root);
protocol.doRattach(tag, root.dir.qid);
}
else
{
protocol.doRerror(tag, "Fid currently in use");
}
}
printfidlist();
break;
case (byte)proto.Tclunk:
if (listclunk(fid))
{
Console.WriteLine("clunked fid:{0}", fid);
protocol.doRclunk(tag, fid);
}
else
{
protocol.doRerror(tag, "Unrecognized fid");
}
printfidlist();
break;
case (byte)proto.Twalk:
Inode cfidnode;
Inode wfidnode;
ushort nwqid = 0;
if (fidlist.TryGetValue(fid, out cfidnode) == false)
{
protocol.doRerror(tag, "Unrecognized fid");
break;
}
else if (fidlist.ContainsKey(protocol.fT.newfid))
{
//protocol.doRerror (tag, protocol.fT.tag, "New fid already in use");
listclunk(fid);
break;
}
if (protocol.fT.nwname > 0)
{
//walk throught the file tree, creating qid's
wfidnode = cfidnode;
for (nwqid = 0; nwqid < protocol.fT.nwname; nwqid++, cfidnode = wfidnode)
{
Console.WriteLine("nwname={0}, wname={1}", protocol.fT.nwname, protocol.fT.wname [nwqid]);
if (walkChild(cfidnode, protocol.fT.wname [nwqid], out wfidnode))
{
//Console.WriteLine ("Walkchild succeeded");
wqid [nwqid] = wfidnode.dir.qid;
}
else if (nwqid == 0)
{
protocol.doRerror(tag, "first nwname walk failed");
//Console.WriteLine ("first nwname walk failed");
break;
}
}
// take the last successful walk and make that the new fid.
fidlist.Add(protocol.fT.newfid, wfidnode);
}
else // simply create a new fid for the current file
{
fidlist.Add(protocol.fT.newfid, cfidnode);
nwqid = 1;
wqid [0] = cfidnode.dir.qid;
}
printfidlist();
protocol.doRwalk(tag, nwqid, wqid);
break;
case (byte)proto.Tremove:
Inode rfidnode;
if (fidlist.TryGetValue(fid, out rfidnode) == false)
{
protocol.doRerror(tag, "Unrecognized fid");
break;
}
if (delnode(rfidnode.parent, rfidnode.dir.name))
{
listclunk(fid);
protocol.doRremove(tag);
}
break;
case (byte)proto.Tversion:
if (protocol.fT.version.Equals("9P2000"))
{
protocol.doRversion(tag);
}
else
{
protocol.doRerror(tag, "Version :" + protocol.fT.version + " not supported.");
}
break;
case (byte)proto.Tflush:
//do nothing
protocol.doRflush(tag);
break;
case (byte)proto.Tcreate:
Inode dirnode;
if (fidlist.TryGetValue(fid, out dirnode) == false)
{
protocol.doRerror(tag, "Unrecognized fid");
break;
}
byte type = (byte)proto.QTFILE;
Console.WriteLine("perm = {0}", BitConverter.ToString((BitConverter.GetBytes(protocol.fT.perm))));
if ((protocol.fT.perm & (uint)proto.DMDIR) != 0)
{
type = (byte)proto.QTDIR;
Console.WriteLine("Created Directory");
}
Inode newfile = createnode(protocol.fT.name, protocol.fT.perm, clientname, "client", type);
dirnode.children.Add(newfile);
newfile.parent = dirnode;
newfile.mode = protocol.fT.mode;
newfile.data = new Byte[0];
protocol.doRcreate(tag, new Qid(), protocol.mmsgsz);
break;
case (byte)proto.Twstat:
Inode wnode;
Dir tdir;
if (fidlist.TryGetValue(fid, out wnode) == false)
{
protocol.doRerror(tag, "Unrecognized fid");
break;
}
tdir = protocol.convM2D(protocol.fT.stat, 0);
wnode.dir = tdir; // some permissions stuff should precede this.
protocol.doRwstat(tag);
break;
case (byte)proto.Twrite:
Inode wrnode;
if (fidlist.TryGetValue(fid, out wrnode) == false)
{
protocol.doRerror(tag, "Unrecognized fid");
break;
}
if (wrnode.mode.Equals((uint)proto.OREAD))
{
protocol.doRerror(tag, "File not opened for writing");
break;
}
int woffset = (int)protocol.fT.offset;
if ((wrnode.mode & (uint)proto.OAPPEND) > 0)
{
woffset = (int)wrnode.data.Length;
}
if (woffset > (int)wrnode.data.Length)
{
protocol.doRerror(tag, "offset out of bounds");
break;
}
Byte[] newdata = new Byte[woffset + (int)protocol.fT.count];
Array.Copy(wrnode.data, 0, newdata, 0, woffset); //copy existing data before offset
Array.Copy(protocol.fT.data, 0, newdata, woffset, protocol.fT.count);
wrnode.data = newdata;
wrnode.dir.muid = clientname;
wrnode.dir.mtime = (uint)DateTime.Now.ToFileTime();
wrnode.dir.qid.vers += 1;
wrnode.dir.length = (ulong)wrnode.data.Length;
protocol.doRwrite(tag, protocol.fT.count);
Console.WriteLine("new contents:{0}", BitConverter.ToString(wrnode.data, 0, wrnode.data.Length));
break;
default:
throw new ninepexception("unrecognized message type");
}
printPacket(protocol.pktR, "R");
}
}
}
