public FStat _fstat() { return new FStat(); }
}
- public int sys_opensocket(int cstring, int port) throws FaultException, ErrnoException {
+ private int sys_socket(int domain, int type, int proto) {
+ if(domain != AF_INET || (type != SOCK_STREAM && type != SOCK_DGRAM)) return -EPROTONOSUPPORT;
+ return addFD(new SocketFD(type == SOCK_STREAM ? SocketFD.TYPE_STREAM : SocketFD.TYPE_DGRAM));
+ }
+
+ private SocketFD getSocketFD(int fdn) throws ErrnoException {
+ if(fdn < 0 || fdn >= OPEN_MAX) throw new ErrnoException(EBADFD);
+ if(fds[fdn] == null) throw new ErrnoException(EBADFD);
+ if(!(fds[fdn] instanceof SocketFD)) throw new ErrnoException(ENOTSOCK);
+
+ return (SocketFD) fds[fdn];
+ }
+
+ private int sys_connect(int fdn, int addr, int namelen) throws ErrnoException, FaultException {
+ SocketFD fd = getSocketFD(fdn);
+
+ if(fd.type() == SocketFD.TYPE_STREAM && fd.o != null) return -EISCONN;
+ int word1 = memRead(addr);
+ if( ((word1 >>> 16)&0xff) != AF_INET) return -EAFNOSUPPORT;
+ int port = word1 & 0xffff;
+ byte[] ip = new byte[4];
+ copyin(addr+4,ip,4);
+
+ InetAddress inetAddr;
+ try {
+ inetAddr = InetAddress.getByAddress(ip);
+ } catch(UnknownHostException e) {
+ return -EADDRNOTAVAIL;
+ }
+
+ try {
+ switch(fd.type()) {
+ case SocketFD.TYPE_STREAM: {
+ Socket s = new Socket(inetAddr,port);
+ fd.o = s;
+ fd.setOptions();
+ fd.is = s.getInputStream();
+ fd.os = s.getOutputStream();
+ break;
+ }
+ case SocketFD.TYPE_DGRAM: {
+ DatagramSocket s = (DatagramSocket) fd.o;
+ if(s == null) s = new DatagramSocket();
+ s.connect(inetAddr,port);
+ break;
+ }
+ default:
+ throw new Error("should never happen");
+ }
+ } catch(IOException e) {
+ return -ECONNREFUSED;
+ }
+
+ return 0;
+ }
+
+ private int sys_resolve_hostname(int chostname, int addr, int sizeAddr) throws FaultException {
+ String hostname = cstring(chostname);
+ int size = memRead(sizeAddr);
+ InetAddress[] inetAddrs;
+ try {
+ inetAddrs = InetAddress.getAllByName(hostname);
+ } catch(UnknownHostException e) {
+ return HOST_NOT_FOUND;
+ }
+ int count = min(size/4,inetAddrs.length);
+ for(int i=0;i<count;i++,addr+=4) {
+ byte[] b = inetAddrs[i].getAddress();
+ copyout(b,addr,4);
+ }
+ memWrite(sizeAddr,count*4);
+ return 0;
+ }
+
+ private int sys_setsockopt(int fdn, int level, int name, int valaddr, int len) throws ReadFaultException, ErrnoException {
+ SocketFD fd = getSocketFD(fdn);
+ switch(level) {
+ case SOL_SOCKET:
+ switch(name) {
+ case SO_REUSEADDR:
+ case SO_KEEPALIVE: {
+ if(len != 4) return -EINVAL;
+ int val = memRead(valaddr);
+ if(val != 0) fd.options |= name;
+ else fd.options &= ~name;
+ fd.setOptions();
+ return 0;
+ }
+ default:
+ if(STDERR_DIAG) System.err.println("Unknown setsockopt name passed: " + name);
+ return -ENOPROTOOPT;
+ }
+ default:
+ if(STDERR_DIAG) System.err.println("Unknown setsockopt leve passed: " + level);
+ return -ENOPROTOOPT;
+ }
+ }
+
+ private int sys_getsockopt(int fdn, int level, int name, int valaddr, int lenaddr) throws ErrnoException, FaultException {
+ SocketFD fd = getSocketFD(fdn);
+ switch(level) {
+ case SOL_SOCKET:
+ switch(name) {
+ case SO_REUSEADDR:
+ case SO_KEEPALIVE: {
+ int len = memRead(lenaddr);
+ if(len < 4) return -EINVAL;
+ int val = (fd.options & name) != 0 ? 1 : 0;
+ memWrite(valaddr,val);
+ memWrite(lenaddr,4);
+ return 0;
+ }
+ default:
+ if(STDERR_DIAG) System.err.println("Unknown setsockopt name passed: " + name);
+ return -ENOPROTOOPT;
+ }
+ default:
+ if(STDERR_DIAG) System.err.println("Unknown setsockopt leve passed: " + level);
+ return -ENOPROTOOPT;
+ }
+ }
+
+ private int sys_bind(int fdn, int addr, int namelen) throws FaultException, ErrnoException {
+ SocketFD fd = getSocketFD(fdn);
+
+ if(fd.type() == SocketFD.TYPE_STREAM && fd.o != null) return -EISCONN;
+ int word1 = memRead(addr);
+ if( ((word1 >>> 16)&0xff) != AF_INET) return -EAFNOSUPPORT;
+ int port = word1 & 0xffff;
+ InetAddress inetAddr = null;
+ if(memRead(addr+4) != 0) {
+ byte[] ip = new byte[4];
+ copyin(addr+4,ip,4);
+
+ try {
+ inetAddr = InetAddress.getByAddress(ip);
+ } catch(UnknownHostException e) {
+ return -EADDRNOTAVAIL;
+ }
+ }
+
+ switch(fd.type()) {
+ case SocketFD.TYPE_STREAM: {
+ fd.bindAddr = inetAddr;
+ fd.bindPort = port;
+ return 0;
+ }
+ case SocketFD.TYPE_DGRAM: {
+ DatagramSocket s = (DatagramSocket) fd.o;
+ if(s != null) s.close();
+ try {
+ fd.o = inetAddr != null ? new DatagramSocket(port,inetAddr) : new DatagramSocket(port);
+ } catch(IOException e) {
+ return -EADDRINUSE;
+ }
+ return 0;
+ }
+ default:
+ throw new Error("should never happen");
+ }
+ }
+
+ private int sys_listen(int fdn, int backlog) throws ErrnoException {
+ SocketFD fd = getSocketFD(fdn);
+ if(fd.type() != SocketFD.TYPE_STREAM) return -EOPNOTSUPP;
+ if(fd.o != null) return -EISCONN;
+ if(fd.bindPort < 0) return -EOPNOTSUPP;
+
+ try {
+ fd.o = new ServerSocket(fd.bindPort,backlog,fd.bindAddr);
+ fd.flags |= SocketFD.LISTEN;
+ return 0;
+ } catch(IOException e) {
+ return -EADDRINUSE;
+ }
+
+ }
+
+ private int sys_accept(int fdn, int addr, int lenaddr) throws ErrnoException, FaultException {
+ SocketFD fd = getSocketFD(fdn);
+ if(fd.type() != SocketFD.TYPE_STREAM) return -EOPNOTSUPP;
+ if(!fd.listen()) return -EOPNOTSUPP;
+
+ int size = memRead(lenaddr);
+
+ ServerSocket s = (ServerSocket) fd.o;
+ Socket client;
+ try {
+ client = s.accept();
+ } catch(IOException e) {
+ return -EIO;
+ }
+
+ if(size >= 8) {
+ memWrite(addr,(6 << 24) | (AF_INET << 16) | client.getPort());
+ byte[] b = client.getInetAddress().getAddress();
+ copyout(b,addr+4,4);
+ memWrite(lenaddr,8);
+ }
+
+ SocketFD clientFD = new SocketFD(SocketFD.TYPE_STREAM);
+ clientFD.o = client;
+ try {
+ clientFD.is = client.getInputStream();
+ clientFD.os = client.getOutputStream();
+ } catch(IOException e) {
+ return -EIO;
+ }
+ int n = addFD(clientFD);
+ if(n == -1) { clientFD.close(); return -ENFILE; }
+ return n;
+ }
+
+ private int sys_shutdown(int fdn, int how) throws ErrnoException {
+ SocketFD fd = getSocketFD(fdn);
+ if(fd.type() != SocketFD.TYPE_STREAM || fd.listen()) return -EOPNOTSUPP;
+ if(fd.o == null) return -ENOTCONN;
+
+ Socket s = (Socket) fd.o;
+
+ try {
+ if(how == SHUT_RD || how == SHUT_RDWR) s.shutdownInput();
+ if(how == SHUT_WR || how == SHUT_RDWR) s.shutdownOutput();
+ } catch(IOException e) {
+ return -EIO;
+ }
+
+ return 0;
+ }
+
+ private static String hostName() {
+ try {
+ return InetAddress.getLocalHost().getHostName();
+ } catch(UnknownHostException e) {
+ return "darkstar";
+ }
+ }
+
+ private int sys_sysctl(int nameaddr, int namelen, int oldp, int oldlenaddr, int newp, int newlen) throws FaultException {
+ if(newp != 0) return -EPERM;
+ if(namelen == 0) return -ENOENT;
+ if(oldp == 0) return 0;
+
+ Object o = null;
+ switch(memRead(nameaddr)) {
+ case CTL_KERN:
+ if(namelen != 2) break;
+ switch(memRead(nameaddr+4)) {
+ case KERN_OSTYPE: o = "NestedVM"; break;
+ case KERN_HOSTNAME: o = hostName(); break;
+ case KERN_OSRELEASE: o = VERSION; break;
+ case KERN_VERSION: o = "NestedVM Kernel Version " + VERSION; break;
+ }
+ break;
+ case CTL_HW:
+ if(namelen != 2) break;
+ switch(memRead(nameaddr+4)) {
+ case HW_MACHINE: o = "NestedVM Virtual Machine"; break;
+ }
+ break;
+ }
+ if(o == null) return -ENOENT;
+ int len = memRead(oldlenaddr);
+ if(o instanceof String) {
+ byte[] b = getNullTerminatedBytes((String)o);
+ if(len < b.length) return -ENOMEM;
+ len = b.length;
+ copyout(b,oldp,len);
+ memWrite(oldlenaddr,len);
+ } else if(o instanceof Integer) {
+ if(len < 4) return -ENOMEM;
+ memWrite(oldp,((Integer)o).intValue());
+ } else {
+ throw new Error("should never happen");
+ }
+ return 0;
+ }
+
+
+ /*public int sys_opensocket(int cstring, int port) throws FaultException, ErrnoException {
String hostname = cstring(cstring);
try {
FD fd = new SocketFD(new Socket(hostname,port));
}
}
+int _sysctl_r(struct _reent *ptr, int *name, int namelen, void *oldp, size_t *oldlen, void *newp, size_t newlen) {
+ if(name[0] != CTL_USER) return _sysctl(name,namelen,oldp,oldlen,newp,newlen);
+ if(newp != NULL) { ptr->_errno = EPERM; return -1; }
+ if(namelen != 2) { ptr->_errno = EINVAL; return -1; }
+
+ switch(name[1]) {
+ default:
+ fprintf(stderr,"WARNING: sysctl: Unknown name: %d\n",name[1]);
+ ptr->_errno = EINVAL;
+ return -1;
+ }
+}
+
void sync() {
/* do nothing*/
}
return(bname);
}
+/* FreeBSD's uname */
+int
+uname(name)
+struct utsname *name;
+{
+ int mib[2], rval;
+ size_t len;
+ char *p;
+ int oerrno;
+
+ rval = 0;
+
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_OSTYPE;
+ len = sizeof(name->sysname);
+ oerrno = errno;
+ if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1) {
+ if(errno == ENOMEM)
+ errno = oerrno;
+ else
+ rval = -1;
+ }
+ name->sysname[sizeof(name->sysname) - 1] = '\0';
+
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_HOSTNAME;
+ len = sizeof(name->nodename);
+ oerrno = errno;
+ if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1) {
+ if(errno == ENOMEM)
+ errno = oerrno;
+ else
+ rval = -1;
+ }
+ name->nodename[sizeof(name->nodename) - 1] = '\0';
+
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_OSRELEASE;
+ len = sizeof(name->release);
+ oerrno = errno;
+ if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1) {
+ if(errno == ENOMEM)
+ errno = oerrno;
+ else
+ rval = -1;
+ }
+ name->release[sizeof(name->release) - 1] = '\0';
+
+ /* The version may have newlines in it, turn them into spaces. */
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_VERSION;
+ len = sizeof(name->version);
+ oerrno = errno;
+ if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1) {
+ if (errno == ENOMEM)
+ errno = oerrno;
+ else
+ rval = -1;
+ }
+ name->version[sizeof(name->version) - 1] = '\0';
+ for (p = name->version; len--; ++p) {
+ if (*p == '\n' || *p == '\t') {
+ if (len > 1)
+ *p = ' ';
+ else
+ *p = '\0';
+ }
+ }
+
+ mib[0] = CTL_HW;
+ mib[1] = HW_MACHINE;
+ len = sizeof(name->machine);
+ oerrno = errno;
+ if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1) {
+ if (errno == ENOMEM)
+ errno = oerrno;
+ else
+ rval = -1;
+ }
+ name->machine[sizeof(name->machine) - 1] = '\0';
+ return (rval);
+}
/* FreeBSD's daemon() - modified for nestedvm */
int