diff options
Diffstat (limited to 'tools/domctl/src/uk/ac/cam/cl/xeno/domctl/CommandNew.java')
| -rw-r--r-- | tools/domctl/src/uk/ac/cam/cl/xeno/domctl/CommandNew.java | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/tools/domctl/src/uk/ac/cam/cl/xeno/domctl/CommandNew.java b/tools/domctl/src/uk/ac/cam/cl/xeno/domctl/CommandNew.java new file mode 100644 index 0000000000..1dd915686e --- /dev/null +++ b/tools/domctl/src/uk/ac/cam/cl/xeno/domctl/CommandNew.java @@ -0,0 +1,203 @@ +package uk.ac.cam.cl.xeno.domctl; + +import java.io.*; +import java.net.*; + +public class CommandNew extends Command +{ + public int doCommand(Defaults d, String args[]) + { + Runtime r = Runtime.getRuntime (); + String name = getStringParameter(args, 'n', d.domainName); + int size = getIntParameter(args, 'k', d.domainSizeKB); + String image = getStringParameter(args, 'i', d.domainImage); + String initrd = getStringParameter (args, 'r', d.domainInitRD); + int vifs = getIntParameter(args, 'v', d.domainVIFs); + String bargs = getStringParameter (args, 'a', ""); + String root_dev = getStringParameter (args, 'd', d.rootDevice); + String nfs_root_path = getStringParameter (args, 'f', d.NWNFSRoot); + String nw_ip = getStringParameter (args, '4', d.NWIP); + String nw_gw = getStringParameter (args, 'g', d.NWGW); + String nw_mask = getStringParameter (args, 'm', d.NWMask); + String nw_nfs_server = getStringParameter (args, 's', d.NWNFSServer); + String nw_host = getStringParameter (args, 'h', d.NWHost); + String domain_ip = ""; + int rc = 0; + int domain_id; + DataInputStream dis; + int idx; + int i; + + + try + { + /* Some initial sanity checks */ + if (root_dev.equals ("/dev/nfs") && (vifs == 0)) { + return reportError ("Cannot use NFS root without VIFs configured"); + } + + /* Create a new empty domain */ + Process create_p; + String create_cmdarray[] = new String[3]; + int create_rc; + create_cmdarray[0] = d.XIToolsDir + "xi_create"; + create_cmdarray[1] = "" + size; + create_cmdarray[2] = name; + if (Settings.TEST) { + reportCommand (create_cmdarray); + domain_id=1; + create_rc=0; + } else { + create_p = r.exec (create_cmdarray); + dis = new DataInputStream (new BufferedInputStream (create_p.getInputStream ())); + domain_id = Integer.parseInt (dis.readLine ()); + create_rc = create_p.waitFor (); + } + + if (create_rc != 0) { + return reportXIError ("Failed to create domain", create_cmdarray); + } else if (domain_id > d.MaxDomainNumber) { + return reportError ("Cannot configure more than " + + d.MaxDomainNumber + " domains"); + } + + /* Set up boot parameters to pass to xi_build. */ + bargs = ""; + + if (root_dev.equals ("/dev/nfs")) { + if (vifs == 0) { + return reportError ("Cannot use NFS root without VIFs configured"); + } + bargs = (bargs + + "root=/dev/nfs " + + "nfsroot=" + StringPattern.parse(nfs_root_path).resolve(domain_id) + + " "); + } else { + bargs = ("root=" + StringPattern.parse(root_dev).resolve(domain_id) + + " "); + + } + + if (vifs > 0) { + domain_ip = InetAddressPattern.parse(nw_ip).resolve(domain_id); + if (nw_host == null) { + try { + nw_host = InetAddress.getByName(domain_ip).getHostName(); + } catch (UnknownHostException uhe) { + nw_host = "" + nw_ip; + } + + } + bargs = ("ip=" + domain_ip + + ":" + InetAddressPattern.parse(nw_nfs_server).resolve(domain_id) + + ":" + InetAddressPattern.parse(nw_gw).resolve(domain_id) + + ":" + InetAddressPattern.parse(nw_mask).resolve(domain_id) + + ":" + nw_host + + ":eth0:off " + bargs); + } + + /* Build the domain */ + Process build_p; + String build_cmdarray[] = new String[6]; + int build_rc; + idx = 0; + for (i = 0; i < build_cmdarray.length; i ++) + build_cmdarray[i] = ""; + build_cmdarray[idx ++] = d.XIToolsDir + "xi_build"; + build_cmdarray[idx ++] = "" + domain_id; + build_cmdarray[idx ++] = "" + image; + build_cmdarray[idx ++] = "" + vifs; + if (initrd != null) build_cmdarray[idx ++] = "initrd=" + initrd; + build_cmdarray[idx ++] = "" + bargs; + System.out.println ("Build args: " + bargs); + if (Settings.TEST) { + reportCommand (build_cmdarray); + build_rc = 0; + } else { + build_p = r.exec (build_cmdarray); + build_rc = build_p.waitFor (); + } + + if (build_rc != 0) { + return reportXIError ("Failed to build domain", build_cmdarray); + } + + + /* Set up the first VIF if necessary */ + if (vifs > 0) { + Process vifinit_p; + String vifinit_cmdarray[] = new String[4]; + int vifinit_rc; + vifinit_cmdarray[0] = d.XIToolsDir + "xi_vifinit"; + vifinit_cmdarray[1] = "" + domain_id; + vifinit_cmdarray[2] = "0"; + vifinit_cmdarray[3] = domain_ip; + if (Settings.TEST) { + reportCommand (vifinit_cmdarray); + vifinit_rc = 0; + } else { + vifinit_p = r.exec (vifinit_cmdarray); + vifinit_rc = vifinit_p.waitFor (); + } + + if (vifinit_rc != 0) { + return reportXIError ("Failed to initialise VIF 0", vifinit_cmdarray); + } + } + } + catch (Exception e) + { + System.err.println ("Could not create new domain (" + e + ")"); + e.printStackTrace (); + rc = -1; + } + + return rc; + } + + public String getName() + { + return "new"; + } + + public String getUsage() + { + return "[-n<domain_name>] [-k<size>] [-i<image>] [-v<num_vifs>] [-r<initrd>] [-d<root_device>] [-f<nfs_root>] [-s<nfs_boot_server>] [-4<ipv4_boot_address>] [-g<ipv4_boot_gateway>] [-m<ipv4_boot_netmask>] [-h<hostname>] [-a<args>]"; + } + + public String getHelpText() + { + return + "Create a new domain. Note that most of the parameters will assume\n" + + "default values: it should not be necessary to specify them all. See\n" + + "domctl.xml for the current default settings.\n" + + "\n" + + "General command line options:\n" + + " -n Domain name domain_name\n" + + " -k Domain size (kb) domain_size_kb\n" + + " -i Domain image name domain_image\n" + + " -v Number of VIFs domain_vifs\n" + + " -r InitRD (if required) domain_init_rd\n" + + " -d Root device (e.g /dev/nfs, /dev/hda3) root_device\n" + + " -a Additional boot parameters\n" + + "\n" + + "Networking options:\n" + + " -f NFS root (if /dev/nfs specified) nw_nfs_root\n" + + " -s NFS server nw_nfs_server\n" + + " -4 Domain IPv4 address nw_ip\n" + + " -g Domain gateway nw_gw\n" + + " -m Domain net mask nw_mask\n" + + " -h Domain hostname nw_host\n" + + "\n" + + "Parameters to -d, -f, -4, -g, -h can be specified as patterns into\n" + + "which the allocated domain ID will be incorporated. e.g. for\n" + + "domain 1 patterns would expand as follows:\n" + + "\n" + + " /dev/hda+ /dev/hda1\n" + + " /dev/hda7+ /dev/hda8\n" + + " 128.232.8.50+ 128.232.8.51\n" + + "\n" + + "Additionally, patterns for -4 -g -m can include an = which is\n" + + "expanded to the corresponding setting from the calling domain.\n"; + } +} |