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libvirt/tools/virsh.c
Martin Kletzander df8192aaf4 admin: Rename virAdmConnect to virAdmDaemon 
virAdmConnect was named after virConnect, but after some discussions,
most of the APIs called will be working with remote daemon and starting
them virAdmDaemon will make more sense.  Only possibly controversal name
is CloseCallback (de)registration, and connecting to the daemon (which
will still be Open/Close), but even this makes sense if one thinks about
the daemon being opened and closed, e.g. as file, etc.

This way all the APIs working with the daemon will start with
virAdmDaemon prefix, they will accept virAdmDaemonPtr as first parameter
and that will better suit with other namings as well (virDomain*,
virAdmServer*, etc.).

Because in virt-admin, the connection name does not refer to a struct
that would have a connect in its name, also adjust 'connname' in
clients.  And because it is not used anywhere in the vsh code, move it
from there into each client.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-12-01 11:44:48 +01:00

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/*
* virsh.c: a shell to exercise the libvirt API
*
* Copyright (C) 2005, 2007-2015 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Daniel Veillard <veillard@redhat.com>
* Karel Zak <kzak@redhat.com>
* Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include "virsh.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <unistd.h>
#include <errno.h>
#include <getopt.h>
#include <sys/time.h>
#include <fcntl.h>
#include <locale.h>
#include <time.h>
#include <limits.h>
#include <sys/stat.h>
#include <inttypes.h>
#include <signal.h>
#if WITH_READLINE
# include <readline/readline.h>
# include <readline/history.h>
#endif
#include "internal.h"
#include "virerror.h"
#include "virbuffer.h"
#include "viralloc.h"
#include <libvirt/libvirt-qemu.h>
#include <libvirt/libvirt-lxc.h>
#include "virfile.h"
#include "configmake.h"
#include "virthread.h"
#include "vircommand.h"
#include "conf/domain_conf.h"
#include "virtypedparam.h"
#include "virstring.h"
#include "virsh-console.h"
#include "virsh-domain.h"
#include "virsh-domain-monitor.h"
#include "virsh-host.h"
#include "virsh-interface.h"
#include "virsh-network.h"
#include "virsh-nodedev.h"
#include "virsh-nwfilter.h"
#include "virsh-pool.h"
#include "virsh-secret.h"
#include "virsh-snapshot.h"
#include "virsh-volume.h"
/* Gnulib doesn't guarantee SA_SIGINFO support. */
#ifndef SA_SIGINFO
# define SA_SIGINFO 0
#endif
static char *progname;
static const vshCmdGrp cmdGroups[];
static const vshClientHooks hooks;
/*
* Detection of disconnections and automatic reconnection support
*/
static int disconnected; /* we may have been disconnected */
/*
* virshCatchDisconnect:
*
* We get here when the connection was closed. We can't do much in the
* handler, just save the fact it was raised.
*/
static void
virshCatchDisconnect(virConnectPtr conn,
int reason,
void *opaque)
{
if (reason != VIR_CONNECT_CLOSE_REASON_CLIENT) {
vshControl *ctl = opaque;
const char *str = "unknown reason";
virErrorPtr error;
char *uri;
error = virSaveLastError();
uri = virConnectGetURI(conn);
switch ((virConnectCloseReason) reason) {
case VIR_CONNECT_CLOSE_REASON_ERROR:
str = N_("Disconnected from %s due to I/O error");
break;
case VIR_CONNECT_CLOSE_REASON_EOF:
str = N_("Disconnected from %s due to end of file");
break;
case VIR_CONNECT_CLOSE_REASON_KEEPALIVE:
str = N_("Disconnected from %s due to keepalive timeout");
break;
/* coverity[dead_error_condition] */
case VIR_CONNECT_CLOSE_REASON_CLIENT:
case VIR_CONNECT_CLOSE_REASON_LAST:
break;
}
vshError(ctl, _(str), NULLSTR(uri));
if (error) {
virSetError(error);
virFreeError(error);
}
disconnected++;
}
}
/* Main Function which should be used for connecting.
* This function properly handles keepalive settings. */
virConnectPtr
virshConnect(vshControl *ctl, const char *uri, bool readonly)
{
virConnectPtr c = NULL;
int interval = 5; /* Default */
int count = 6; /* Default */
bool keepalive_forced = false;
if (ctl->keepalive_interval >= 0) {
interval = ctl->keepalive_interval;
keepalive_forced = true;
}
if (ctl->keepalive_count >= 0) {
count = ctl->keepalive_count;
keepalive_forced = true;
}
c = virConnectOpenAuth(uri, virConnectAuthPtrDefault,
readonly ? VIR_CONNECT_RO : 0);
if (!c)
return NULL;
if (interval > 0 &&
virConnectSetKeepAlive(c, interval, count) != 0) {
if (keepalive_forced) {
vshError(ctl, "%s",
_("Cannot setup keepalive on connection "
"as requested, disconnecting"));
virConnectClose(c);
return NULL;
}
vshDebug(ctl, VSH_ERR_INFO, "%s",
_("Failed to setup keepalive on connection\n"));
}
return c;
}
/*
* virshReconnect:
*
* Reconnect after a disconnect from libvirtd
*
*/
static void
virshReconnect(vshControl *ctl)
{
bool connected = false;
virshControlPtr priv = ctl->privData;
if (priv->conn) {
int ret;
connected = true;
virConnectUnregisterCloseCallback(priv->conn, virshCatchDisconnect);
ret = virConnectClose(priv->conn);
if (ret < 0)
vshError(ctl, "%s", _("Failed to disconnect from the hypervisor"));
else if (ret > 0)
vshError(ctl, "%s", _("One or more references were leaked after "
"disconnect from the hypervisor"));
}
priv->conn = virshConnect(ctl, priv->connname, priv->readonly);
if (!priv->conn) {
if (disconnected)
vshError(ctl, "%s", _("Failed to reconnect to the hypervisor"));
else
vshError(ctl, "%s", _("failed to connect to the hypervisor"));
} else {
if (virConnectRegisterCloseCallback(priv->conn, virshCatchDisconnect,
NULL, NULL) < 0)
vshError(ctl, "%s", _("Unable to register disconnect callback"));
if (connected)
vshError(ctl, "%s", _("Reconnected to the hypervisor"));
}
disconnected = 0;
priv->useGetInfo = false;
priv->useSnapshotOld = false;
priv->blockJobNoBytes = false;
}
int virshStreamSink(virStreamPtr st ATTRIBUTE_UNUSED,
const char *bytes, size_t nbytes, void *opaque)
{
int *fd = opaque;
return safewrite(*fd, bytes, nbytes);
}
/* ---------------
* Command Connect
* ---------------
*/
static const vshCmdOptDef opts_connect[] = {
{.name = "name",
.type = VSH_OT_STRING,
.flags = VSH_OFLAG_EMPTY_OK,
.help = N_("hypervisor connection URI")
},
{.name = "readonly",
.type = VSH_OT_BOOL,
.help = N_("read-only connection")
},
{.name = NULL}
};
static const vshCmdInfo info_connect[] = {
{.name = "help",
.data = N_("(re)connect to hypervisor")
},
{.name = "desc",
.data = N_("Connect to local hypervisor. This is built-in "
"command after shell start up.")
},
{.name = NULL}
};
static bool
cmdConnect(vshControl *ctl, const vshCmd *cmd)
{
bool ro = vshCommandOptBool(cmd, "readonly");
const char *name = NULL;
virshControlPtr priv = ctl->privData;
if (priv->conn) {
int ret;
virConnectUnregisterCloseCallback(priv->conn, virshCatchDisconnect);
ret = virConnectClose(priv->conn);
if (ret < 0)
vshError(ctl, "%s", _("Failed to disconnect from the hypervisor"));
else if (ret > 0)
vshError(ctl, "%s", _("One or more references were leaked after "
"disconnect from the hypervisor"));
priv->conn = NULL;
}
VIR_FREE(priv->connname);
if (vshCommandOptStringReq(ctl, cmd, "name", &name) < 0)
return false;
priv->connname = vshStrdup(ctl, name);
priv->useGetInfo = false;
priv->useSnapshotOld = false;
priv->blockJobNoBytes = false;
priv->readonly = ro;
priv->conn = virshConnect(ctl, priv->connname, priv->readonly);
if (!priv->conn) {
vshError(ctl, "%s", _("Failed to connect to the hypervisor"));
return false;
}
if (virConnectRegisterCloseCallback(priv->conn, virshCatchDisconnect,
NULL, NULL) < 0)
vshError(ctl, "%s", _("Unable to register disconnect callback"));
return true;
}
/* ---------------
* Utils for work with runtime commands data
* ---------------
*/
static bool
virshConnectionUsability(vshControl *ctl, virConnectPtr conn)
{
if (!conn ||
virConnectIsAlive(conn) == 0) {
vshError(ctl, "%s", _("no valid connection"));
return false;
}
/* The connection is considered dead only if
* virConnectIsAlive() successfuly says so.
*/
vshResetLibvirtError();
return true;
}
static void *
virshConnectionHandler(vshControl *ctl)
{
virshControlPtr priv = ctl->privData;
if (!priv->conn || disconnected)
virshReconnect(ctl);
if (virshConnectionUsability(ctl, priv->conn))
return priv->conn;
return NULL;
}
/* ---------------
* Misc utils
* ---------------
*/
int
virshDomainState(vshControl *ctl, virDomainPtr dom, int *reason)
{
virDomainInfo info;
virshControlPtr priv = ctl->privData;
if (reason)
*reason = -1;
if (!priv->useGetInfo) {
int state;
if (virDomainGetState(dom, &state, reason, 0) < 0) {
virErrorPtr err = virGetLastError();
if (err && err->code == VIR_ERR_NO_SUPPORT)
priv->useGetInfo = true;
else
return -1;
} else {
return state;
}
}
/* fall back to virDomainGetInfo if virDomainGetState is not supported */
if (virDomainGetInfo(dom, &info) < 0)
return -1;
else
return info.state;
}
/*
* Initialize connection.
*/
static bool
virshInit(vshControl *ctl)
{
virshControlPtr priv = ctl->privData;
/* Since we have the commandline arguments parsed, we need to
* reload our initial settings to make debugging and readline
* work properly */
vshInitReload(ctl);
if (priv->conn)
return false;
/* set up the library error handler */
virSetErrorFunc(NULL, vshErrorHandler);
if (virEventRegisterDefaultImpl() < 0)
return false;
if (virThreadCreate(&ctl->eventLoop, true, vshEventLoop, ctl) < 0)
return false;
ctl->eventLoopStarted = true;
if ((ctl->eventTimerId = virEventAddTimeout(-1, vshEventTimeout, ctl,
NULL)) < 0)
return false;
if (priv->connname) {
virshReconnect(ctl);
/* Connecting to a named connection must succeed, but we delay
* connecting to the default connection until we need it
* (since the first command might be 'connect' which allows a
* non-default connection, or might be 'help' which needs no
* connection).
*/
if (!priv->conn) {
vshReportError(ctl);
return false;
}
}
return true;
}
static void
virshDeinitTimer(int timer ATTRIBUTE_UNUSED, void *opaque ATTRIBUTE_UNUSED)
{
/* nothing to be done here */
}
/*
* Deinitialize virsh
*/
static bool
virshDeinit(vshControl *ctl)
{
virshControlPtr priv = ctl->privData;
vshDeinit(ctl);
VIR_FREE(priv->connname);
if (priv->conn) {
int ret;
virConnectUnregisterCloseCallback(priv->conn, virshCatchDisconnect);
ret = virConnectClose(priv->conn);
if (ret < 0)
vshError(ctl, "%s", _("Failed to disconnect from the hypervisor"));
else if (ret > 0)
vshError(ctl, "%s", _("One or more references were leaked after "
"disconnect from the hypervisor"));
}
virResetLastError();
if (ctl->eventLoopStarted) {
int timer;
virMutexLock(&ctl->lock);
ctl->quit = true;
/* HACK: Add a dummy timeout to break event loop */
timer = virEventAddTimeout(0, virshDeinitTimer, NULL, NULL);
virMutexUnlock(&ctl->lock);
virThreadJoin(&ctl->eventLoop);
if (timer != -1)
virEventRemoveTimeout(timer);
if (ctl->eventTimerId != -1)
virEventRemoveTimeout(ctl->eventTimerId);
ctl->eventLoopStarted = false;
}
virMutexDestroy(&ctl->lock);
return true;
}
/*
* Print usage
*/
static void
virshUsage(void)
{
const vshCmdGrp *grp;
const vshCmdDef *cmd;
fprintf(stdout, _("\n%s [options]... [<command_string>]"
"\n%s [options]... <command> [args...]\n\n"
" options:\n"
" -c | --connect=URI hypervisor connection URI\n"
" -d | --debug=NUM debug level [0-4]\n"
" -e | --escape <char> set escape sequence for console\n"
" -h | --help this help\n"
" -k | --keepalive-interval=NUM\n"
" keepalive interval in seconds, 0 for disable\n"
" -K | --keepalive-count=NUM\n"
" number of possible missed keepalive messages\n"
" -l | --log=FILE output logging to file\n"
" -q | --quiet quiet mode\n"
" -r | --readonly connect readonly\n"
" -t | --timing print timing information\n"
" -v short version\n"
" -V long version\n"
" --version[=TYPE] version, TYPE is short or long (default short)\n"
" commands (non interactive mode):\n\n"), progname,
progname);
for (grp = cmdGroups; grp->name; grp++) {
fprintf(stdout, _(" %s (help keyword '%s')\n"),
grp->name, grp->keyword);
for (cmd = grp->commands; cmd->name; cmd++) {
if (cmd->flags & VSH_CMD_FLAG_ALIAS)
continue;
fprintf(stdout,
" %-30s %s\n", cmd->name,
_(vshCmddefGetInfo(cmd, "help")));
}
fprintf(stdout, "\n");
}
fprintf(stdout, "%s",
_("\n (specify help <group> for details about the commands in the group)\n"));
fprintf(stdout, "%s",
_("\n (specify help <command> for details about the command)\n\n"));
return;
}
/*
* Show version and options compiled in
*/
static void
virshShowVersion(vshControl *ctl ATTRIBUTE_UNUSED)
{
/* FIXME - list a copyright blurb, as in GNU programs? */
vshPrint(ctl, _("Virsh command line tool of libvirt %s\n"), VERSION);
vshPrint(ctl, _("See web site at %s\n\n"), "http://libvirt.org/");
vshPrint(ctl, "%s", _("Compiled with support for:\n"));
vshPrint(ctl, "%s", _(" Hypervisors:"));
#ifdef WITH_QEMU
vshPrint(ctl, " QEMU/KVM");
#endif
#ifdef WITH_LXC
vshPrint(ctl, " LXC");
#endif
#ifdef WITH_UML
vshPrint(ctl, " UML");
#endif
#ifdef WITH_XEN
vshPrint(ctl, " Xen");
#endif
#ifdef WITH_LIBXL
vshPrint(ctl, " LibXL");
#endif
#ifdef WITH_OPENVZ
vshPrint(ctl, " OpenVZ");
#endif
#ifdef WITH_VMWARE
vshPrint(ctl, " VMWare");
#endif
#ifdef WITH_PHYP
vshPrint(ctl, " PHYP");
#endif
#ifdef WITH_VBOX
vshPrint(ctl, " VirtualBox");
#endif
#ifdef WITH_ESX
vshPrint(ctl, " ESX");
#endif
#ifdef WITH_HYPERV
vshPrint(ctl, " Hyper-V");
#endif
#ifdef WITH_XENAPI
vshPrint(ctl, " XenAPI");
#endif
#ifdef WITH_BHYVE
vshPrint(ctl, " Bhyve");
#endif
#ifdef WITH_TEST
vshPrint(ctl, " Test");
#endif
vshPrint(ctl, "\n");
vshPrint(ctl, "%s", _(" Networking:"));
#ifdef WITH_REMOTE
vshPrint(ctl, " Remote");
#endif
#ifdef WITH_NETWORK
vshPrint(ctl, " Network");
#endif
#ifdef WITH_BRIDGE
vshPrint(ctl, " Bridging");
#endif
#if defined(WITH_INTERFACE)
vshPrint(ctl, " Interface");
# if defined(WITH_NETCF)
vshPrint(ctl, " netcf");
# elif defined(WITH_UDEV)
vshPrint(ctl, " udev");
# endif
#endif
#ifdef WITH_NWFILTER
vshPrint(ctl, " Nwfilter");
#endif
#ifdef WITH_VIRTUALPORT
vshPrint(ctl, " VirtualPort");
#endif
vshPrint(ctl, "\n");
vshPrint(ctl, "%s", _(" Storage:"));
#ifdef WITH_STORAGE_DIR
vshPrint(ctl, " Dir");
#endif
#ifdef WITH_STORAGE_DISK
vshPrint(ctl, " Disk");
#endif
#ifdef WITH_STORAGE_FS
vshPrint(ctl, " Filesystem");
#endif
#ifdef WITH_STORAGE_SCSI
vshPrint(ctl, " SCSI");
#endif
#ifdef WITH_STORAGE_MPATH
vshPrint(ctl, " Multipath");
#endif
#ifdef WITH_STORAGE_ISCSI
vshPrint(ctl, " iSCSI");
#endif
#ifdef WITH_STORAGE_LVM
vshPrint(ctl, " LVM");
#endif
#ifdef WITH_STORAGE_RBD
vshPrint(ctl, " RBD");
#endif
#ifdef WITH_STORAGE_SHEEPDOG
vshPrint(ctl, " Sheepdog");
#endif
#ifdef WITH_STORAGE_GLUSTER
vshPrint(ctl, " Gluster");
#endif
vshPrint(ctl, "\n");
vshPrint(ctl, "%s", _(" Miscellaneous:"));
#ifdef WITH_LIBVIRTD
vshPrint(ctl, " Daemon");
#endif
#ifdef WITH_NODE_DEVICES
vshPrint(ctl, " Nodedev");
#endif
#ifdef WITH_SECDRIVER_APPARMOR
vshPrint(ctl, " AppArmor");
#endif
#ifdef WITH_SECDRIVER_SELINUX
vshPrint(ctl, " SELinux");
#endif
#ifdef WITH_SECRETS
vshPrint(ctl, " Secrets");
#endif
#ifdef ENABLE_DEBUG
vshPrint(ctl, " Debug");
#endif
#ifdef WITH_DTRACE_PROBES
vshPrint(ctl, " DTrace");
#endif
#if WITH_READLINE
vshPrint(ctl, " Readline");
#endif
#ifdef WITH_DRIVER_MODULES
vshPrint(ctl, " Modular");
#endif
vshPrint(ctl, "\n");
}
static bool
virshAllowedEscapeChar(char c)
{
/* Allowed escape characters:
* a-z A-Z @ [ \ ] ^ _
*/
return ('a' <= c && c <= 'z') ||
('@' <= c && c <= '_');
}
/*
* argv[]: virsh [options] [command]
*
*/
static bool
virshParseArgv(vshControl *ctl, int argc, char **argv)
{
int arg, len, debug, keepalive;
size_t i;
int longindex = -1;
virshControlPtr priv = ctl->privData;
struct option opt[] = {
{"connect", required_argument, NULL, 'c'},
{"debug", required_argument, NULL, 'd'},
{"escape", required_argument, NULL, 'e'},
{"help", no_argument, NULL, 'h'},
{"keepalive-interval", required_argument, NULL, 'k'},
{"keepalive-count", required_argument, NULL, 'K'},
{"log", required_argument, NULL, 'l'},
{"quiet", no_argument, NULL, 'q'},
{"readonly", no_argument, NULL, 'r'},
{"timing", no_argument, NULL, 't'},
{"version", optional_argument, NULL, 'v'},
{NULL, 0, NULL, 0}
};
/* Standard (non-command) options. The leading + ensures that no
* argument reordering takes place, so that command options are
* not confused with top-level virsh options. */
while ((arg = getopt_long(argc, argv, "+:c:d:e:hk:K:l:qrtvV", opt, &longindex)) != -1) {
switch (arg) {
case 'c':
VIR_FREE(priv->connname);
priv->connname = vshStrdup(ctl, optarg);
break;
case 'd':
if (virStrToLong_i(optarg, NULL, 10, &debug) < 0) {
vshError(ctl, _("option %s takes a numeric argument"),
longindex == -1 ? "-d" : "--debug");
exit(EXIT_FAILURE);
}
if (debug < VSH_ERR_DEBUG || debug > VSH_ERR_ERROR)
vshError(ctl, _("ignoring debug level %d out of range [%d-%d]"),
debug, VSH_ERR_DEBUG, VSH_ERR_ERROR);
else
ctl->debug = debug;
break;
case 'e':
len = strlen(optarg);
if ((len == 2 && *optarg == '^' &&
virshAllowedEscapeChar(optarg[1])) ||
(len == 1 && *optarg != '^')) {
priv->escapeChar = optarg;
} else {
vshError(ctl, _("Invalid string '%s' for escape sequence"),
optarg);
exit(EXIT_FAILURE);
}
break;
case 'h':
virshUsage();
exit(EXIT_SUCCESS);
break;
case 'k':
if (virStrToLong_i(optarg, NULL, 0, &keepalive) < 0) {
vshError(ctl,
_("Invalid value for option %s"),
longindex == -1 ? "-k" : "--keepalive-interval");
exit(EXIT_FAILURE);
}
if (keepalive < 0) {
vshError(ctl,
_("option %s requires a positive integer argument"),
longindex == -1 ? "-k" : "--keepalive-interval");
exit(EXIT_FAILURE);
}
ctl->keepalive_interval = keepalive;
break;
case 'K':
if (virStrToLong_i(optarg, NULL, 0, &keepalive) < 0) {
vshError(ctl,
_("Invalid value for option %s"),
longindex == -1 ? "-K" : "--keepalive-count");
exit(EXIT_FAILURE);
}
if (keepalive < 0) {
vshError(ctl,
_("option %s requires a positive integer argument"),
longindex == -1 ? "-K" : "--keepalive-count");
exit(EXIT_FAILURE);
}
ctl->keepalive_count = keepalive;
break;
case 'l':
vshCloseLogFile(ctl);
ctl->logfile = vshStrdup(ctl, optarg);
vshOpenLogFile(ctl);
break;
case 'q':
ctl->quiet = true;
break;
case 't':
ctl->timing = true;
break;
case 'r':
priv->readonly = true;
break;
case 'v':
if (STRNEQ_NULLABLE(optarg, "long")) {
puts(VERSION);
exit(EXIT_SUCCESS);
}
/* fall through */
case 'V':
virshShowVersion(ctl);
exit(EXIT_SUCCESS);
case ':':
for (i = 0; opt[i].name != NULL; i++) {
if (opt[i].val == optopt)
break;
}
if (opt[i].name)
vshError(ctl, _("option '-%c'/'--%s' requires an argument"),
optopt, opt[i].name);
else
vshError(ctl, _("option '-%c' requires an argument"), optopt);
exit(EXIT_FAILURE);
case '?':
if (optopt)
vshError(ctl, _("unsupported option '-%c'. See --help."), optopt);
else
vshError(ctl, _("unsupported option '%s'. See --help."), argv[optind - 1]);
exit(EXIT_FAILURE);
default:
vshError(ctl, _("unknown option"));
exit(EXIT_FAILURE);
}
longindex = -1;
}
if (argc == optind) {
ctl->imode = true;
} else {
/* parse command */
ctl->imode = false;
if (argc - optind == 1) {
vshDebug(ctl, VSH_ERR_INFO, "commands: \"%s\"\n", argv[optind]);
return vshCommandStringParse(ctl, argv[optind]);
} else {
return vshCommandArgvParse(ctl, argc - optind, argv + optind);
}
}
return true;
}
static const vshCmdDef virshCmds[] = {
VSH_CMD_CD,
VSH_CMD_ECHO,
VSH_CMD_EXIT,
VSH_CMD_HELP,
VSH_CMD_PWD,
VSH_CMD_QUIT,
{.name = "connect",
.handler = cmdConnect,
.opts = opts_connect,
.info = info_connect,
.flags = VSH_CMD_FLAG_NOCONNECT
},
{.name = NULL}
};
static const vshCmdGrp cmdGroups[] = {
{VIRSH_CMD_GRP_DOM_MANAGEMENT, "domain", domManagementCmds},
{VIRSH_CMD_GRP_DOM_MONITORING, "monitor", domMonitoringCmds},
{VIRSH_CMD_GRP_HOST_AND_HV, "host", hostAndHypervisorCmds},
{VIRSH_CMD_GRP_IFACE, "interface", ifaceCmds},
{VIRSH_CMD_GRP_NWFILTER, "filter", nwfilterCmds},
{VIRSH_CMD_GRP_NETWORK, "network", networkCmds},
{VIRSH_CMD_GRP_NODEDEV, "nodedev", nodedevCmds},
{VIRSH_CMD_GRP_SECRET, "secret", secretCmds},
{VIRSH_CMD_GRP_SNAPSHOT, "snapshot", snapshotCmds},
{VIRSH_CMD_GRP_STORAGE_POOL, "pool", storagePoolCmds},
{VIRSH_CMD_GRP_STORAGE_VOL, "volume", storageVolCmds},
{VIRSH_CMD_GRP_VIRSH, "virsh", virshCmds},
{NULL, NULL, NULL}
};
static const vshClientHooks hooks = {
.connHandler = virshConnectionHandler
};
int
main(int argc, char **argv)
{
vshControl _ctl, *ctl = &_ctl;
virshControl virshCtl;
const char *defaultConn;
bool ret = true;
memset(ctl, 0, sizeof(vshControl));
memset(&virshCtl, 0, sizeof(virshControl));
ctl->name = "virsh"; /* hardcoded name of the binary */
ctl->log_fd = -1; /* Initialize log file descriptor */
ctl->debug = VSH_DEBUG_DEFAULT;
ctl->hooks = &hooks;
/* In order to distinguish default from setting to 0 */
ctl->keepalive_interval = -1;
ctl->keepalive_count = -1;
ctl->eventPipe[0] = -1;
ctl->eventPipe[1] = -1;
ctl->eventTimerId = -1;
virshCtl.escapeChar = "^]"; /* Same default as telnet */
ctl->privData = &virshCtl;
if (!(progname = strrchr(argv[0], '/')))
progname = argv[0];
else
progname++;
ctl->progname = progname;
if (!setlocale(LC_ALL, "")) {
perror("setlocale");
/* failure to setup locale is not fatal */
}
if (!bindtextdomain(PACKAGE, LOCALEDIR)) {
perror("bindtextdomain");
return EXIT_FAILURE;
}
if (!textdomain(PACKAGE)) {
perror("textdomain");
return EXIT_FAILURE;
}
if (isatty(STDIN_FILENO)) {
ctl->istty = true;
#ifndef WIN32
if (tcgetattr(STDIN_FILENO, &ctl->termattr) < 0)
ctl->istty = false;
#endif
}
if (virMutexInit(&ctl->lock) < 0) {
vshError(ctl, "%s", _("Failed to initialize mutex"));
return EXIT_FAILURE;
}
if (virInitialize() < 0) {
vshError(ctl, "%s", _("Failed to initialize libvirt"));
return EXIT_FAILURE;
}
virFileActivateDirOverride(argv[0]);
if ((defaultConn = virGetEnvBlockSUID("VIRSH_DEFAULT_CONNECT_URI")))
virshCtl.connname = vshStrdup(ctl, defaultConn);
if (!vshInit(ctl, cmdGroups, NULL))
exit(EXIT_FAILURE);
if (!virshParseArgv(ctl, argc, argv) ||
!virshInit(ctl)) {
virshDeinit(ctl);
exit(EXIT_FAILURE);
}
if (!ctl->imode) {
ret = vshCommandRun(ctl, ctl->cmd);
} else {
/* interactive mode */
if (!ctl->quiet) {
vshPrint(ctl,
_("Welcome to %s, the virtualization interactive terminal.\n\n"),
progname);
vshPrint(ctl, "%s",
_("Type: 'help' for help with commands\n"
" 'quit' to quit\n\n"));
}
do {
const char *prompt = virshCtl.readonly ? VIRSH_PROMPT_RO
: VIRSH_PROMPT_RW;
ctl->cmdstr =
vshReadline(ctl, prompt);
if (ctl->cmdstr == NULL)
break; /* EOF */
if (*ctl->cmdstr) {
#if WITH_READLINE
add_history(ctl->cmdstr);
#endif
if (vshCommandStringParse(ctl, ctl->cmdstr))
vshCommandRun(ctl, ctl->cmd);
}
VIR_FREE(ctl->cmdstr);
} while (ctl->imode);
if (ctl->cmdstr == NULL)
fputc('\n', stdout); /* line break after alone prompt */
}
virshDeinit(ctl);
exit(ret ? EXIT_SUCCESS : EXIT_FAILURE);
}
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