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libvirt/tools/virt-admin.c
Michal Privoznik 1201299699 tools: Reformat --help output of virsh and virt-admin 
The --help output of virsh and virt-admin shows supported options
and commands and as such contains new lines. Both these strings
are marked for translation btw. But the way they are formatted
now ('\n' being at the start of new line instead at the end of
the previous) makes it hard to create a syntax-check rule for
'translation message on one line' (next commit).

Reformat both strings a bit (no user visible change though).

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2023-09-04 11:59:38 +02:00

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/*
* virt-admin.c: a shell to exercise the libvirt admin API
*
* Copyright (C) 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/>.
*/
#include <config.h>
#include <stdio.h>
#include <unistd.h>
#include <getopt.h>
#include "internal.h"
#include "virt-admin.h"
#include "viralloc.h"
#include "virerror.h"
#include "virfile.h"
#include "virstring.h"
#include "virthread.h"
#include "virgettext.h"
#include "virt-admin-completer.h"
#include "vsh-table.h"
#include "virenum.h"
#define VIRT_ADMIN_PROMPT "virt-admin # "
static char *progname;
static const vshCmdGrp cmdGroups[];
static const vshClientHooks hooks;
VIR_ENUM_DECL(virClientTransport);
VIR_ENUM_IMPL(virClientTransport,
VIR_CLIENT_TRANS_LAST,
N_("unix"),
N_("tcp"),
N_("tls"));
static const char *
vshAdmClientTransportToString(int transport)
{
const char *str = virClientTransportTypeToString(transport);
return str ? _(str) : _("unknown");
}
/*
* vshAdmCatchDisconnect:
*
* We get here when the connection was closed. Unlike virsh, we do not save
* the fact that the event was raised, since there is virAdmConnectIsAlive to
* check if the communication channel has not been closed by remote party.
*/
static void
vshAdmCatchDisconnect(virAdmConnectPtr conn G_GNUC_UNUSED,
int reason,
void *opaque)
{
vshControl *ctl = opaque;
const char *str = "unknown reason";
virErrorPtr error;
g_autofree char *uri = NULL;
if (reason == VIR_CONNECT_CLOSE_REASON_CLIENT)
return;
virErrorPreserveLast(&error);
uri = virAdmConnectGetURI(conn);
switch ((virConnectCloseReason) reason) {
case VIR_CONNECT_CLOSE_REASON_ERROR:
str = N_("Disconnected from %1$s due to I/O error");
break;
case VIR_CONNECT_CLOSE_REASON_EOF:
str = N_("Disconnected from %1$s due to end of file");
break;
case VIR_CONNECT_CLOSE_REASON_KEEPALIVE:
str = N_("Disconnected from %1$s due to keepalive timeout");
break;
case VIR_CONNECT_CLOSE_REASON_CLIENT:
case VIR_CONNECT_CLOSE_REASON_LAST:
break;
}
vshError(ctl, _(str), NULLSTR(uri));
virErrorRestore(&error);
}
static int
vshAdmConnect(vshControl *ctl, unsigned int flags)
{
vshAdmControl *priv = ctl->privData;
priv->conn = virAdmConnectOpen(ctl->connname, flags);
if (!priv->conn) {
if (priv->wantReconnect)
vshError(ctl, "%s", _("Failed to reconnect to the admin server"));
else
vshError(ctl, "%s", _("Failed to connect to the admin server"));
return -1;
} else {
if (virAdmConnectRegisterCloseCallback(priv->conn, vshAdmCatchDisconnect,
NULL, NULL) < 0)
vshError(ctl, "%s", _("Unable to register disconnect callback"));
if (priv->wantReconnect)
vshPrint(ctl, "%s\n", _("Reconnected to the admin server"));
}
return 0;
}
static int
vshAdmDisconnect(vshControl *ctl)
{
int ret = 0;
vshAdmControl *priv = ctl->privData;
if (!priv->conn)
return ret;
virAdmConnectUnregisterCloseCallback(priv->conn, vshAdmCatchDisconnect);
ret = virAdmConnectClose(priv->conn);
if (ret < 0)
vshError(ctl, "%s", _("Failed to disconnect from the admin server"));
else if (ret > 0)
vshError(ctl, "%s", _("One or more references were leaked after disconnect from the hypervisor"));
priv->conn = NULL;
return ret;
}
/*
* vshAdmReconnect:
*
* Reconnect to a daemon's admin server
*
*/
static void
vshAdmReconnect(vshControl *ctl)
{
vshAdmControl *priv = ctl->privData;
if (priv->conn)
priv->wantReconnect = true;
vshAdmDisconnect(ctl);
vshAdmConnect(ctl, 0);
priv->wantReconnect = false;
}
/*
* 'uri' command
*/
static const vshCmdInfo info_uri[] = {
{.name = "help",
.data = N_("print the admin server URI")
},
{.name = "desc",
.data = ""
},
{.name = NULL}
};
static bool
cmdURI(vshControl *ctl, const vshCmd *cmd G_GNUC_UNUSED)
{
g_autofree char *uri = NULL;
vshAdmControl *priv = ctl->privData;
uri = virAdmConnectGetURI(priv->conn);
if (!uri) {
vshError(ctl, "%s", _("failed to get URI"));
return false;
}
vshPrint(ctl, "%s\n", uri);
return true;
}
/*
* "version" command
*/
static const vshCmdInfo info_version[] = {
{.name = "help",
.data = N_("show version")
},
{.name = "desc",
.data = N_("Display the system and also the daemon version information.")
},
{.name = NULL}
};
static bool
cmdVersion(vshControl *ctl, const vshCmd *cmd G_GNUC_UNUSED)
{
unsigned long libVersion;
unsigned long long includeVersion;
unsigned long long daemonVersion;
int ret;
unsigned int major;
unsigned int minor;
unsigned int rel;
vshAdmControl *priv = ctl->privData;
includeVersion = LIBVIR_VERSION_NUMBER;
major = includeVersion / 1000000;
includeVersion %= 1000000;
minor = includeVersion / 1000;
rel = includeVersion % 1000;
vshPrint(ctl, _("Compiled against library: libvirt %1$d.%2$d.%3$d\n"),
major, minor, rel);
ret = virGetVersion(&libVersion, NULL, NULL);
if (ret < 0) {
vshError(ctl, "%s", _("failed to get the library version"));
return false;
}
major = libVersion / 1000000;
libVersion %= 1000000;
minor = libVersion / 1000;
rel = libVersion % 1000;
vshPrint(ctl, _("Using library: libvirt %1$d.%2$d.%3$d\n"),
major, minor, rel);
ret = virAdmConnectGetLibVersion(priv->conn, &daemonVersion);
if (ret < 0) {
vshError(ctl, "%s", _("failed to get the daemon version"));
} else {
major = daemonVersion / 1000000;
daemonVersion %= 1000000;
minor = daemonVersion / 1000;
rel = daemonVersion % 1000;
vshPrint(ctl, _("Running against daemon: %1$d.%2$d.%3$d\n"),
major, minor, rel);
}
return true;
}
/* ---------------
* Command Connect
* ---------------
*/
static const vshCmdOptDef opts_connect[] = {
{.name = "name",
.type = VSH_OT_STRING,
.flags = VSH_OFLAG_EMPTY_OK,
.help = N_("daemon's admin server connection URI")
},
{.name = NULL}
};
static const vshCmdInfo info_connect[] = {
{.name = "help",
.data = N_("connect to daemon's admin server")
},
{.name = "desc",
.data = N_("Connect to a daemon's administrating server.")
},
{.name = NULL}
};
static bool
cmdConnect(vshControl *ctl, const vshCmd *cmd)
{
const char *name = NULL;
vshAdmControl *priv = ctl->privData;
bool connected = priv->conn;
if (vshCommandOptStringReq(ctl, cmd, "name", &name) < 0)
return false;
if (name) {
VIR_FREE(ctl->connname);
ctl->connname = g_strdup(name);
}
vshAdmReconnect(ctl);
if (!connected && priv->conn)
vshPrint(ctl, "%s\n", _("Connected to the admin server"));
return !!priv->conn;
}
/* -------------------
* Command server-list
* -------------------
*/
static const vshCmdInfo info_srv_list[] = {
{.name = "help",
.data = N_("list available servers on a daemon")
},
{.name = "desc",
.data = N_("List all manageable servers on a daemon.")
},
{.name = NULL}
};
static bool
cmdSrvList(vshControl *ctl, const vshCmd *cmd G_GNUC_UNUSED)
{
int nsrvs = 0;
size_t i;
bool ret = false;
g_autofree char *uri = NULL;
virAdmServerPtr *srvs = NULL;
vshAdmControl *priv = ctl->privData;
g_autoptr(vshTable) table = NULL;
/* Obtain a list of available servers on the daemon */
if ((nsrvs = virAdmConnectListServers(priv->conn, &srvs, 0)) < 0) {
uri = virAdmConnectGetURI(priv->conn);
vshError(ctl, _("failed to obtain list of available servers from %1$s"),
NULLSTR(uri));
goto cleanup;
}
table = vshTableNew(_("Id"), _("Name"), NULL);
if (!table)
goto cleanup;
for (i = 0; i < nsrvs; i++) {
g_autofree char *idStr = NULL;
idStr = g_strdup_printf("%zu", i);
if (vshTableRowAppend(table,
idStr,
virAdmServerGetName(srvs[i]),
NULL) < 0)
goto cleanup;
}
vshTablePrintToStdout(table, ctl);
ret = true;
cleanup:
if (srvs) {
for (i = 0; i < nsrvs; i++)
virAdmServerFree(srvs[i]);
VIR_FREE(srvs);
}
return ret;
}
/* ------------------------------
* Command server-threadpool-info
* ------------------------------
*/
static const vshCmdInfo info_srv_threadpool_info[] = {
{.name = "help",
.data = N_("get server workerpool parameters")
},
{.name = "desc",
.data = N_("Retrieve threadpool attributes from a server. ")
},
{.name = NULL}
};
static const vshCmdOptDef opts_srv_threadpool_info[] = {
{.name = "server",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
.completer = vshAdmServerCompleter,
.help = N_("Server to retrieve threadpool attributes from."),
},
{.name = NULL}
};
static bool
cmdSrvThreadpoolInfo(vshControl *ctl, const vshCmd *cmd)
{
bool ret = false;
virTypedParameterPtr params = NULL;
int nparams = 0;
size_t i;
const char *srvname = NULL;
virAdmServerPtr srv = NULL;
vshAdmControl *priv = ctl->privData;
if (vshCommandOptStringReq(ctl, cmd, "server", &srvname) < 0)
return false;
if (!(srv = virAdmConnectLookupServer(priv->conn, srvname, 0)))
goto cleanup;
if (virAdmServerGetThreadPoolParameters(srv, &params,
&nparams, 0) < 0) {
vshError(ctl, "%s",
_("Unable to get server workerpool parameters"));
goto cleanup;
}
for (i = 0; i < nparams; i++)
vshPrint(ctl, "%-15s: %u\n", params[i].field, params[i].value.ui);
ret = true;
cleanup:
virTypedParamsFree(params, nparams);
if (srv)
virAdmServerFree(srv);
return ret;
}
/* -----------------------------
* Command server-threadpool-set
* -----------------------------
*/
static const vshCmdInfo info_srv_threadpool_set[] = {
{.name = "help",
.data = N_("set server workerpool parameters")
},
{.name = "desc",
.data = N_("Tune threadpool attributes on a server. See OPTIONS for "
"currently supported attributes.")
},
{.name = NULL}
};
static const vshCmdOptDef opts_srv_threadpool_set[] = {
{.name = "server",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
.completer = vshAdmServerCompleter,
.help = N_("Server to alter threadpool attributes on."),
},
{.name = "min-workers",
.type = VSH_OT_INT,
.help = N_("Change bottom limit to number of workers."),
},
{.name = "max-workers",
.type = VSH_OT_INT,
.help = N_("Change upper limit to number of workers."),
},
{.name = "priority-workers",
.type = VSH_OT_INT,
.help = N_("Change the current number of priority workers"),
},
{.name = NULL}
};
static bool
cmdSrvThreadpoolSet(vshControl *ctl, const vshCmd *cmd)
{
bool ret = false;
int rv = 0;
unsigned int val, min, max;
int maxparams = 0;
int nparams = 0;
const char *srvname = NULL;
virTypedParameterPtr params = NULL;
virAdmServerPtr srv = NULL;
vshAdmControl *priv = ctl->privData;
if (vshCommandOptStringReq(ctl, cmd, "server", &srvname) < 0)
return false;
#define PARSE_CMD_TYPED_PARAM(NAME, FIELD) \
if ((rv = vshCommandOptUInt(ctl, cmd, NAME, &val)) < 0) { \
vshError(ctl, _("Unable to parse integer parameter '%1$s'"), NAME); \
goto cleanup; \
} else if (rv > 0) { \
if (virTypedParamsAddUInt(&params, &nparams, &maxparams, \
FIELD, val) < 0) \
goto save_error; \
}
PARSE_CMD_TYPED_PARAM("max-workers", VIR_THREADPOOL_WORKERS_MAX);
PARSE_CMD_TYPED_PARAM("min-workers", VIR_THREADPOOL_WORKERS_MIN);
PARSE_CMD_TYPED_PARAM("priority-workers", VIR_THREADPOOL_WORKERS_PRIORITY);
#undef PARSE_CMD_TYPED_PARAM
if (!nparams) {
vshError(ctl, "%s",
_("At least one of options --min-workers, --max-workers, --priority-workers is mandatory"));
goto cleanup;
}
if (virTypedParamsGetUInt(params, nparams,
VIR_THREADPOOL_WORKERS_MAX, &max) &&
virTypedParamsGetUInt(params, nparams,
VIR_THREADPOOL_WORKERS_MIN, &min) && min > max) {
vshError(ctl, "%s", _("--min-workers must be less than or equal to --max-workers"));
goto cleanup;
}
if (!(srv = virAdmConnectLookupServer(priv->conn, srvname, 0)))
goto cleanup;
if (virAdmServerSetThreadPoolParameters(srv, params,
nparams, 0) < 0)
goto error;
ret = true;
cleanup:
virTypedParamsFree(params, nparams);
if (srv)
virAdmServerFree(srv);
return ret;
save_error:
vshSaveLibvirtError();
error:
vshError(ctl, "%s", _("Unable to change server workerpool parameters"));
goto cleanup;
}
/* ---------------------------
* Command server-clients-list
* ---------------------------
*/
static const vshCmdInfo info_srv_clients_list[] = {
{.name = "help",
.data = N_("list clients connected to <server>")
},
{.name = "desc",
.data = N_("List all manageable clients connected to <server>.")
},
{.name = NULL}
};
static const vshCmdOptDef opts_srv_clients_list[] = {
{.name = "server",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
.completer = vshAdmServerCompleter,
.help = N_("server which to list connected clients from"),
},
{.name = NULL}
};
static bool
cmdSrvClientsList(vshControl *ctl, const vshCmd *cmd)
{
int nclts = 0;
size_t i;
bool ret = false;
const char *srvname = NULL;
unsigned long long id;
virClientTransport transport;
virAdmServerPtr srv = NULL;
virAdmClientPtr *clts = NULL;
vshAdmControl *priv = ctl->privData;
g_autoptr(vshTable) table = NULL;
if (vshCommandOptStringReq(ctl, cmd, "server", &srvname) < 0)
return false;
if (!(srv = virAdmConnectLookupServer(priv->conn, srvname, 0)))
goto cleanup;
/* Obtain a list of clients connected to server @srv */
if ((nclts = virAdmServerListClients(srv, &clts, 0)) < 0) {
vshError(ctl, _("failed to obtain list of connected clients from server '%1$s'"),
virAdmServerGetName(srv));
goto cleanup;
}
table = vshTableNew(_("Id"), _("Transport"), _("Connected since"), NULL);
if (!table)
goto cleanup;
for (i = 0; i < nclts; i++) {
g_autoptr(GDateTime) then = NULL;
g_autofree gchar *thenstr = NULL;
g_autofree char *idStr = NULL;
virAdmClientPtr client = clts[i];
id = virAdmClientGetID(client);
then = g_date_time_new_from_unix_local(virAdmClientGetTimestamp(client));
transport = virAdmClientGetTransport(client);
thenstr = g_date_time_format(then, "%Y-%m-%d %H:%M:%S%z");
idStr = g_strdup_printf("%llu", id);
if (vshTableRowAppend(table, idStr,
vshAdmClientTransportToString(transport),
thenstr, NULL) < 0)
goto cleanup;
}
vshTablePrintToStdout(table, ctl);
ret = true;
cleanup:
if (clts) {
for (i = 0; i < nclts; i++)
virAdmClientFree(clts[i]);
VIR_FREE(clts);
}
virAdmServerFree(srv);
return ret;
}
/* -------------------
* Command client-info
* -------------------
*/
static const vshCmdInfo info_client_info[] = {
{.name = "help",
.data = N_("retrieve client's identity info from server")
},
{.name = "desc",
.data = N_("Retrieve identity details about <client> from <server>")
},
{.name = NULL}
};
static const vshCmdOptDef opts_client_info[] = {
{.name = "server",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
.completer = vshAdmServerCompleter,
.help = N_("server to which <client> is connected to"),
},
{.name = "client",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
.help = N_("client which to retrieve identity information for"),
},
{.name = NULL}
};
static bool
cmdClientInfo(vshControl *ctl, const vshCmd *cmd)
{
bool ret = false;
size_t i;
unsigned long long id;
const char *srvname = NULL;
g_autoptr(GDateTime) then = NULL;
g_autofree gchar *thenstr = NULL;
virAdmServerPtr srv = NULL;
virAdmClientPtr clnt = NULL;
virTypedParameterPtr params = NULL;
int nparams = 0;
vshAdmControl *priv = ctl->privData;
if (vshCommandOptULongLong(ctl, cmd, "client", &id) < 0)
return false;
if (vshCommandOptStringReq(ctl, cmd, "server", &srvname) < 0)
return false;
if (!(srv = virAdmConnectLookupServer(priv->conn, srvname, 0)) ||
!(clnt = virAdmServerLookupClient(srv, id, 0)))
goto cleanup;
/* Retrieve client identity info */
if (virAdmClientGetInfo(clnt, &params, &nparams, 0) < 0) {
vshError(ctl, _("failed to retrieve client identity information for client '%1$llu' connected to server '%2$s'"),
id, virAdmServerGetName(srv));
goto cleanup;
}
then = g_date_time_new_from_unix_local(virAdmClientGetTimestamp(clnt));
thenstr = g_date_time_format(then, "%Y-%m-%d %H:%M:%S%z");
/* this info is provided by the client object itself */
vshPrint(ctl, "%-15s: %llu\n", "id", virAdmClientGetID(clnt));
vshPrint(ctl, "%-15s: %s\n", "connection_time", thenstr);
vshPrint(ctl, "%-15s: %s\n", "transport",
vshAdmClientTransportToString(virAdmClientGetTransport(clnt)));
for (i = 0; i < nparams; i++) {
g_autofree char *str = vshGetTypedParamValue(ctl, &params[i]);
vshPrint(ctl, "%-15s: %s\n", params[i].field, str);
}
ret = true;
cleanup:
virTypedParamsFree(params, nparams);
virAdmServerFree(srv);
virAdmClientFree(clnt);
return ret;
}
/* -------------------------
* Command client-disconnect
* -------------------------
*/
static const vshCmdInfo info_client_disconnect[] = {
{.name = "help",
.data = N_("force disconnect a client from the given server")
},
{.name = "desc",
.data = N_("Force close a specific client's connection to the given "
"server.")
},
{.name = NULL}
};
static const vshCmdOptDef opts_client_disconnect[] = {
{.name = "server",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
.completer = vshAdmServerCompleter,
.help = N_("server which the client is currently connected to"),
},
{.name = "client",
.type = VSH_OT_INT,
.flags = VSH_OFLAG_REQ,
.help = N_("client which to disconnect, specified by ID"),
},
{.name = NULL}
};
static bool
cmdClientDisconnect(vshControl *ctl, const vshCmd *cmd)
{
bool ret = false;
const char *srvname = NULL;
unsigned long long id = 0;
virAdmServerPtr srv = NULL;
virAdmClientPtr client = NULL;
vshAdmControl *priv = ctl->privData;
if (vshCommandOptStringReq(ctl, cmd, "server", &srvname) < 0)
return false;
if (vshCommandOptULongLongWrap(ctl, cmd, "client", &id) < 0)
return false;
if (!(srv = virAdmConnectLookupServer(priv->conn, srvname, 0)))
goto cleanup;
if (!(client = virAdmServerLookupClient(srv, id, 0)))
goto cleanup;
if (virAdmClientClose(client, 0) < 0) {
vshError(ctl, _("Failed to disconnect client '%1$llu' from server %2$s"),
id, virAdmServerGetName(srv));
goto cleanup;
}
vshPrint(ctl, _("Client '%1$llu' disconnected"), id);
ret = true;
cleanup:
virAdmClientFree(client);
virAdmServerFree(srv);
return ret;
}
/* ---------------------------
* Command server-clients-info
* ---------------------------
*/
static const vshCmdInfo info_srv_clients_info[] = {
{.name = "help",
.data = N_("get server's client-related configuration limits")
},
{.name = "desc",
.data = N_("Retrieve server's client-related configuration limits ")
},
{.name = NULL}
};
static const vshCmdOptDef opts_srv_clients_info[] = {
{.name = "server",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
.completer = vshAdmServerCompleter,
.help = N_("Server to retrieve the client limits from."),
},
{.name = NULL}
};
static bool
cmdSrvClientsInfo(vshControl *ctl, const vshCmd *cmd)
{
bool ret = false;
virTypedParameterPtr params = NULL;
int nparams = 0;
size_t i;
const char *srvname = NULL;
virAdmServerPtr srv = NULL;
vshAdmControl *priv = ctl->privData;
if (vshCommandOptStringReq(ctl, cmd, "server", &srvname) < 0)
return false;
if (!(srv = virAdmConnectLookupServer(priv->conn, srvname, 0)))
goto cleanup;
if (virAdmServerGetClientLimits(srv, &params, &nparams, 0) < 0) {
vshError(ctl, "%s", _("Unable to retrieve client limits from server's configuration"));
goto cleanup;
}
for (i = 0; i < nparams; i++)
vshPrint(ctl, "%-20s: %u\n", params[i].field, params[i].value.ui);
ret = true;
cleanup:
virTypedParamsFree(params, nparams);
virAdmServerFree(srv);
return ret;
}
/* --------------------------
* Command server-clients-set
* --------------------------
*/
static const vshCmdInfo info_srv_clients_set[] = {
{.name = "help",
.data = N_("set server's client-related configuration limits")
},
{.name = "desc",
.data = N_("Tune server's client-related configuration limits. "
"See OPTIONS for currently supported attributes.")
},
{.name = NULL}
};
static const vshCmdOptDef opts_srv_clients_set[] = {
{.name = "server",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
.completer = vshAdmServerCompleter,
.help = N_("Server to alter the client-related configuration limits on."),
},
{.name = "max-clients",
.type = VSH_OT_INT,
.help = N_("Change the upper limit to overall number of clients "
"connected to the server."),
},
{.name = "max-unauth-clients",
.type = VSH_OT_INT,
.help = N_("Change the upper limit to number of clients waiting for "
"authentication to be connected to the server"),
},
{.name = NULL}
};
static bool
cmdSrvClientsSet(vshControl *ctl, const vshCmd *cmd)
{
bool ret = false;
int rv = 0;
unsigned int val, max, unauth_max;
int maxparams = 0;
int nparams = 0;
const char *srvname = NULL;
virAdmServerPtr srv = NULL;
virTypedParameterPtr params = NULL;
vshAdmControl *priv = ctl->privData;
if (vshCommandOptStringReq(ctl, cmd, "server", &srvname) < 0)
return false;
#define PARSE_CMD_TYPED_PARAM(NAME, FIELD) \
if ((rv = vshCommandOptUInt(ctl, cmd, NAME, &val)) < 0) { \
vshError(ctl, _("Unable to parse integer parameter '%1$s'"), NAME); \
goto cleanup; \
} else if (rv > 0) { \
if (virTypedParamsAddUInt(&params, &nparams, &maxparams, \
FIELD, val) < 0) \
goto save_error; \
}
PARSE_CMD_TYPED_PARAM("max-clients", VIR_SERVER_CLIENTS_MAX);
PARSE_CMD_TYPED_PARAM("max-unauth-clients", VIR_SERVER_CLIENTS_UNAUTH_MAX);
#undef PARSE_CMD_TYPED_PARAM
if (!nparams) {
vshError(ctl, "%s", _("At least one of options --max-clients, --max-unauth-clients is mandatory"));
goto cleanup;
}
if (virTypedParamsGetUInt(params, nparams,
VIR_SERVER_CLIENTS_MAX, &max) &&
virTypedParamsGetUInt(params, nparams,
VIR_SERVER_CLIENTS_UNAUTH_MAX, &unauth_max) &&
unauth_max > max) {
vshError(ctl, "%s", _("--max-unauth-clients must be less than or equal to --max-clients"));
goto cleanup;
}
if (!(srv = virAdmConnectLookupServer(priv->conn, srvname, 0)))
goto cleanup;
if (virAdmServerSetClientLimits(srv, params, nparams, 0) < 0)
goto error;
ret = true;
cleanup:
virTypedParamsFree(params, nparams);
virAdmServerFree(srv);
return ret;
save_error:
vshSaveLibvirtError();
error:
vshError(ctl, "%s", _("Unable to change server's client-related configuration limits"));
goto cleanup;
}
/* --------------------------
* Command server-update-tls
* --------------------------
*/
static const vshCmdInfo info_srv_update_tls_file[] = {
{.name = "help",
.data = N_("notify server to update TLS related files online.")
},
{.name = "desc",
.data = N_("notify server to update the CA cert, "
"CA CRL, server cert / key without restarts. "
"See OPTIONS for currently supported attributes.")
},
{.name = NULL}
};
static const vshCmdOptDef opts_srv_update_tls_file[] = {
{.name = "server",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
.help = N_("Available servers on a daemon. "
"Currently only supports 'libvirtd' or 'virtproxyd'.")
},
{.name = NULL}
};
static bool
cmdSrvUpdateTlsFiles(vshControl *ctl, const vshCmd *cmd)
{
bool ret = false;
const char *srvname = NULL;
virAdmServerPtr srv = NULL;
vshAdmControl *priv = ctl->privData;
if (vshCommandOptStringReq(ctl, cmd, "server", &srvname) < 0)
return false;
if (!(srv = virAdmConnectLookupServer(priv->conn, srvname, 0)))
goto cleanup;
if (virAdmServerUpdateTlsFiles(srv, 0) < 0) {
vshError(ctl, "%s", _("Unable to update server's tls related files."));
goto cleanup;
}
ret = true;
vshPrint(ctl, "update tls related files succeed\n");
cleanup:
virAdmServerFree(srv);
return ret;
}
/* --------------------------
* Command daemon-log-filters
* --------------------------
*/
static const vshCmdInfo info_daemon_log_filters[] = {
{.name = "help",
.data = N_("fetch or set the currently defined set of logging filters on "
"daemon")
},
{.name = "desc",
.data = N_("Depending on whether run with or without options, the command "
"fetches or redefines the existing active set of filters on "
"daemon.")
},
{.name = NULL}
};
static const vshCmdOptDef opts_daemon_log_filters[] = {
{.name = "filters",
.type = VSH_OT_STRING,
.help = N_("redefine the existing set of logging filters"),
.flags = VSH_OFLAG_EMPTY_OK
},
{.name = NULL}
};
static bool
cmdDaemonLogFilters(vshControl *ctl, const vshCmd *cmd)
{
vshAdmControl *priv = ctl->privData;
if (vshCommandOptBool(cmd, "filters")) {
const char *filters = NULL;
if ((vshCommandOptStringReq(ctl, cmd, "filters", &filters) < 0 ||
virAdmConnectSetLoggingFilters(priv->conn, filters, 0) < 0)) {
vshError(ctl, _("Unable to change daemon logging settings"));
return false;
}
} else {
g_autofree char *filters = NULL;
if (virAdmConnectGetLoggingFilters(priv->conn,
&filters, 0) < 0) {
vshError(ctl, _("Unable to get daemon logging filters information"));
return false;
}
vshPrintExtra(ctl, " %-15s", _("Logging filters: "));
vshPrint(ctl, "%s\n", NULLSTR_EMPTY(filters));
}
return true;
}
/* --------------------------
* Command daemon-log-outputs
* --------------------------
*/
static const vshCmdInfo info_daemon_log_outputs[] = {
{.name = "help",
.data = N_("fetch or set the currently defined set of logging outputs on "
"daemon")
},
{.name = "desc",
.data = N_("Depending on whether run with or without options, the command "
"fetches or redefines the existing active set of outputs on "
"daemon.")
},
{.name = NULL}
};
static const vshCmdOptDef opts_daemon_timeout[] = {
{.name = "timeout",
.type = VSH_OT_INT,
.help = N_("number of seconds the daemon will run without any active connection"),
.flags = VSH_OFLAG_REQ | VSH_OFLAG_REQ_OPT
},
{.name = NULL}
};
static bool
cmdDaemonTimeout(vshControl *ctl, const vshCmd *cmd)
{
vshAdmControl *priv = ctl->privData;
unsigned int timeout = 0;
if (vshCommandOptUInt(ctl, cmd, "timeout", &timeout) < 0)
return false;
if (virAdmConnectSetDaemonTimeout(priv->conn, timeout, 0) < 0)
return false;
return true;
}
/* --------------------------
* Command daemon-timeout
* --------------------------
*/
static const vshCmdInfo info_daemon_timeout[] = {
{.name = "help",
.data = N_("set the auto shutdown timeout of the daemon")
},
{.name = "desc",
.data = N_("set the auto shutdown timeout of the daemon")
},
{.name = NULL}
};
static const vshCmdOptDef opts_daemon_log_outputs[] = {
{.name = "outputs",
.type = VSH_OT_STRING,
.help = N_("redefine the existing set of logging outputs"),
.flags = VSH_OFLAG_EMPTY_OK
},
{.name = NULL}
};
static bool
cmdDaemonLogOutputs(vshControl *ctl, const vshCmd *cmd)
{
vshAdmControl *priv = ctl->privData;
if (vshCommandOptBool(cmd, "outputs")) {
const char *outputs = NULL;
if ((vshCommandOptStringReq(ctl, cmd, "outputs", &outputs) < 0 ||
virAdmConnectSetLoggingOutputs(priv->conn, outputs, 0) < 0)) {
vshError(ctl, _("Unable to change daemon logging settings"));
return false;
}
} else {
g_autofree char *outputs = NULL;
if (virAdmConnectGetLoggingOutputs(priv->conn, &outputs, 0) < 0) {
vshError(ctl, _("Unable to get daemon logging outputs information"));
return false;
}
vshPrintExtra(ctl, " %-15s", _("Logging outputs: "));
vshPrint(ctl, "%s\n", NULLSTR_EMPTY(outputs));
}
return true;
}
static void *
vshAdmConnectionHandler(vshControl *ctl)
{
vshAdmControl *priv = ctl->privData;
if (!virAdmConnectIsAlive(priv->conn))
vshAdmReconnect(ctl);
if (!virAdmConnectIsAlive(priv->conn)) {
vshError(ctl, "%s", _("no valid connection"));
return NULL;
}
return priv->conn;
}
/*
* Initialize connection.
*/
static bool
vshAdmInit(vshControl *ctl)
{
vshAdmControl *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->connname) {
vshAdmReconnect(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
vshAdmDeinitTimer(int timer G_GNUC_UNUSED, void *opaque G_GNUC_UNUSED)
{
/* nothing to be done here */
}
/*
* Deinitialize virt-admin
*/
static void
vshAdmDeinit(vshControl *ctl)
{
vshAdmControl *priv = ctl->privData;
vshDeinit(ctl);
VIR_FREE(ctl->connname);
if (priv->conn)
vshAdmDisconnect(ctl);
virResetLastError();
if (ctl->eventLoopStarted) {
int timer = -1;
VIR_WITH_MUTEX_LOCK_GUARD(&ctl->lock) {
ctl->quit = true;
/* HACK: Add a dummy timeout to break event loop */
timer = virEventAddTimeout(0, vshAdmDeinitTimer, NULL, NULL);
}
virThreadJoin(&ctl->eventLoop);
if (timer != -1)
virEventRemoveTimeout(timer);
ctl->eventLoopStarted = false;
}
virMutexDestroy(&ctl->lock);
}
/*
* Print usage
*/
static void
vshAdmUsage(void)
{
const vshCmdGrp *grp;
const vshCmdDef *cmd;
fprintf(stdout, _("\n"
"%1$s [options]... [<command_string>]\n"
"%2$s [options]... <command> [args...]\n"
"\n"
" options:\n"
" -c | --connect=URI daemon admin connection URI\n"
" -d | --debug=NUM debug level [0-4]\n"
" -h | --help this help\n"
" -l | --log=FILE output logging to file\n"
" -q | --quiet quiet mode\n"
" -v short version\n"
" -V long version\n"
" --version[=TYPE] version, TYPE is short or long (default short)\n"
" commands (non interactive mode):\n\n"), progname,
progname);
for (grp = cmdGroups; grp->name; grp++) {
fprintf(stdout, _(" %1$s (help keyword '%2$s')\n"),
grp->name, grp->keyword);
for (cmd = grp->commands; cmd->name; cmd++) {
if (cmd->flags & VSH_CMD_FLAG_ALIAS ||
cmd->flags & VSH_CMD_FLAG_HIDDEN)
continue;
fprintf(stdout,
" %-30s %s\n", cmd->name,
_(vshCmddefGetInfo(cmd, "help")));
}
fprintf(stdout, "\n");
}
fprintf(stdout, "%s",
_("\n (specify help <group> for details about the commands in the group)\n"));
fprintf(stdout, "%s",
_("\n (specify help <command> for details about the command)\n\n"));
return;
}
/*
* Show version and options compiled in
*/
static void
vshAdmShowVersion(vshControl *ctl G_GNUC_UNUSED)
{
/* FIXME - list a copyright blurb, as in GNU programs? */
vshPrint(ctl, _("Virt-admin command line tool of libvirt %1$s\n"), VERSION);
vshPrint(ctl, _("See web site at %1$s\n\n"), "https://libvirt.org/");
vshPrint(ctl, "%s", _("Compiled with support for:"));
#ifdef WITH_LIBVIRTD
vshPrint(ctl, " Daemon");
#endif
vshPrint(ctl, " Debug");
#if WITH_READLINE
vshPrint(ctl, " Readline");
#endif
vshPrint(ctl, "\n");
}
static bool
vshAdmParseArgv(vshControl *ctl, int argc, char **argv)
{
int arg, debug;
size_t i;
int longindex = -1;
struct option opt[] = {
{ "connect", required_argument, NULL, 'c' },
{ "debug", required_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
{ "log", required_argument, NULL, 'l' },
{ "quiet", no_argument, NULL, 'q' },
{ "version", optional_argument, NULL, 'v' },
{ NULL, 0, NULL, 0 },
};
/* Standard (non-command) options. The leading + ensures that no
* argument reordering takes place, so that command options are
* not confused with top-level virt-admin options. */
while ((arg = getopt_long(argc, argv, "+:c:d:hl:qvV", opt, &longindex)) != -1) {
switch (arg) {
case 'c':
VIR_FREE(ctl->connname);
ctl->connname = g_strdup(optarg);
break;
case 'd':
if (virStrToLong_i(optarg, NULL, 10, &debug) < 0) {
vshError(ctl, _("option %1$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 %1$d out of range [%2$d-%3$d]"),
debug, VSH_ERR_DEBUG, VSH_ERR_ERROR);
else
ctl->debug = debug;
break;
case 'h':
vshAdmUsage();
exit(EXIT_SUCCESS);
break;
case 'l':
vshCloseLogFile(ctl);
ctl->logfile = g_strdup(optarg);
vshOpenLogFile(ctl);
break;
case 'q':
ctl->quiet = true;
break;
case 'v':
if (STRNEQ_NULLABLE(optarg, "long")) {
puts(VERSION);
exit(EXIT_SUCCESS);
}
G_GNUC_FALLTHROUGH;
case 'V':
vshAdmShowVersion(ctl);
exit(EXIT_SUCCESS);
case ':':
for (i = 0; opt[i].name != NULL; i++) {
if (opt[i].val == optopt)
break;
}
if (opt[i].name)
vshError(ctl, _("option '-%1$c'/'--%2$s' requires an argument"),
optopt, opt[i].name);
else
vshError(ctl, _("option '-%1$c' requires an argument"), optopt);
exit(EXIT_FAILURE);
case '?':
if (optopt)
vshError(ctl, _("unsupported option '-%1$c'. See --help."), optopt);
else
vshError(ctl, _("unsupported option '%1$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], NULL, 0);
} else {
return vshCommandArgvParse(ctl, argc - optind, argv + optind);
}
}
return true;
}
static const vshCmdDef vshAdmCmds[] = {
VSH_CMD_CD,
VSH_CMD_ECHO,
VSH_CMD_EXIT,
VSH_CMD_HELP,
VSH_CMD_PWD,
VSH_CMD_QUIT,
VSH_CMD_SELF_TEST,
VSH_CMD_COMPLETE,
{.name = "uri",
.handler = cmdURI,
.opts = NULL,
.info = info_uri,
.flags = 0
},
{.name = "version",
.handler = cmdVersion,
.opts = NULL,
.info = info_version,
.flags = 0
},
{.name = "connect",
.handler = cmdConnect,
.opts = opts_connect,
.info = info_connect,
.flags = VSH_CMD_FLAG_NOCONNECT
},
{.name = NULL}
};
static const vshCmdDef monitoringCmds[] = {
{.name = "srv-list",
.flags = VSH_CMD_FLAG_ALIAS,
.alias = "server-list"
},
{.name = "server-list",
.handler = cmdSrvList,
.opts = NULL,
.info = info_srv_list,
.flags = 0
},
{.name = "srv-threadpool-info",
.flags = VSH_CMD_FLAG_ALIAS,
.alias = "server-threadpool-info"
},
{.name = "server-threadpool-info",
.handler = cmdSrvThreadpoolInfo,
.opts = opts_srv_threadpool_info,
.info = info_srv_threadpool_info,
.flags = 0
},
{.name = "srv-clients-list",
.flags = VSH_CMD_FLAG_ALIAS,
.alias = "client-list"
},
{.name = "client-list",
.handler = cmdSrvClientsList,
.opts = opts_srv_clients_list,
.info = info_srv_clients_list,
.flags = 0
},
{.name = "client-info",
.handler = cmdClientInfo,
.opts = opts_client_info,
.info = info_client_info,
.flags = 0
},
{.name = "srv-clients-info",
.flags = VSH_CMD_FLAG_ALIAS,
.alias = "server-clients-info"
},
{.name = "server-clients-info",
.handler = cmdSrvClientsInfo,
.opts = opts_srv_clients_info,
.info = info_srv_clients_info,
.flags = 0
},
{.name = NULL}
};
static const vshCmdDef managementCmds[] = {
{.name = "srv-threadpool-set",
.flags = VSH_CMD_FLAG_ALIAS,
.alias = "server-threadpool-set"
},
{.name = "server-threadpool-set",
.handler = cmdSrvThreadpoolSet,
.opts = opts_srv_threadpool_set,
.info = info_srv_threadpool_set,
.flags = 0
},
{.name = "client-disconnect",
.handler = cmdClientDisconnect,
.opts = opts_client_disconnect,
.info = info_client_disconnect,
.flags = 0
},
{.name = "srv-clients-set",
.flags = VSH_CMD_FLAG_ALIAS,
.alias = "server-clients-set"
},
{.name = "server-clients-set",
.handler = cmdSrvClientsSet,
.opts = opts_srv_clients_set,
.info = info_srv_clients_set,
.flags = 0
},
{.name = "srv-update-tls",
.flags = VSH_CMD_FLAG_ALIAS,
.alias = "server-update-tls"
},
{.name = "server-update-tls",
.handler = cmdSrvUpdateTlsFiles,
.opts = opts_srv_update_tls_file,
.info = info_srv_update_tls_file,
.flags = 0
},
{.name = "daemon-log-filters",
.handler = cmdDaemonLogFilters,
.opts = opts_daemon_log_filters,
.info = info_daemon_log_filters,
.flags = 0
},
{.name = "daemon-log-outputs",
.handler = cmdDaemonLogOutputs,
.opts = opts_daemon_log_outputs,
.info = info_daemon_log_outputs,
.flags = 0
},
{.name = "daemon-timeout",
.handler = cmdDaemonTimeout,
.opts = opts_daemon_timeout,
.info = info_daemon_timeout,
.flags = 0
},
{.name = NULL}
};
static const vshCmdGrp cmdGroups[] = {
{"Virt-admin itself", "virt-admin", vshAdmCmds},
{"Monitoring commands", "monitor", monitoringCmds},
{"Management commands", "management", managementCmds},
{NULL, NULL, NULL}
};
static const vshClientHooks hooks = {
.connHandler = vshAdmConnectionHandler
};
int
main(int argc, char **argv)
{
vshControl _ctl = { 0 };
vshControl *ctl = &_ctl;
vshAdmControl virtAdminCtl = { 0 };
bool ret = true;
ctl->name = "virt-admin"; /* hardcoded name of the binary */
ctl->env_prefix = "VIRT_ADMIN";
ctl->log_fd = -1; /* Initialize log file descriptor */
ctl->debug = VSH_DEBUG_DEFAULT;
ctl->hooks = &hooks;
ctl->eventPipe[0] = -1;
ctl->eventPipe[1] = -1;
ctl->privData = &virtAdminCtl;
if (!(progname = strrchr(argv[0], '/')))
progname = argv[0];
else
progname++;
ctl->progname = progname;
if (virGettextInitialize() < 0)
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 (virAdmInitialize() < 0) {
vshError(ctl, "%s", _("Failed to initialize libvirt"));
return EXIT_FAILURE;
}
virFileActivateDirOverrideForProg(argv[0]);
if (!vshInit(ctl, cmdGroups, NULL))
exit(EXIT_FAILURE);
if (!vshAdmParseArgv(ctl, argc, argv) ||
!vshAdmInit(ctl)) {
vshAdmDeinit(ctl);
exit(EXIT_FAILURE);
}
if (!ctl->imode) {
ret = vshCommandRun(ctl, ctl->cmd);
} else {
/* interactive mode */
if (!ctl->quiet) {
vshPrint(ctl,
_("Welcome to %1$s, the administrating virtualization interactive terminal.\n\n"),
progname);
vshPrint(ctl, "%s",
_("Type: 'help' for help with commands\n"
" 'quit' to quit\n\n"));
}
do {
ctl->cmdstr = vshReadline(ctl, VIRT_ADMIN_PROMPT);
if (ctl->cmdstr == NULL)
break; /* EOF */
if (*ctl->cmdstr) {
vshReadlineHistoryAdd(ctl->cmdstr);
if (vshCommandStringParse(ctl, ctl->cmdstr, NULL, 0))
vshCommandRun(ctl, ctl->cmd);
}
VIR_FREE(ctl->cmdstr);
} while (ctl->imode);
if (ctl->cmdstr == NULL)
fputc('\n', stdout); /* line break after alone prompt */
}
vshAdmDeinit(ctl);
exit(ret ? EXIT_SUCCESS : EXIT_FAILURE);
}
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