libvirt/tools/virsh-network.c

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/*
* virsh-network.c: Commands to manage network
*
* Copyright (C) 2005, 2007-2012 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>
*
*/
/* default is lookup by Name and UUID */
#define vshCommandOptNetwork(_ctl, _cmd, _name) \
vshCommandOptNetworkBy(_ctl, _cmd, _name, \
VSH_BYUUID|VSH_BYNAME)
static virNetworkPtr
vshCommandOptNetworkBy(vshControl *ctl, const vshCmd *cmd,
const char **name, int flag)
{
virNetworkPtr network = NULL;
const char *n = NULL;
const char *optname = "network";
if (!cmd_has_option(ctl, cmd, optname))
return NULL;
if (vshCommandOptString(cmd, optname, &n) <= 0)
return NULL;
vshDebug(ctl, VSH_ERR_INFO, "%s: found option <%s>: %s\n",
cmd->def->name, optname, n);
if (name)
*name = n;
/* try it by UUID */
if ((flag & VSH_BYUUID) && strlen(n) == VIR_UUID_STRING_BUFLEN-1) {
vshDebug(ctl, VSH_ERR_DEBUG, "%s: <%s> trying as network UUID\n",
cmd->def->name, optname);
network = virNetworkLookupByUUIDString(ctl->conn, n);
}
/* try it by NAME */
if (network==NULL && (flag & VSH_BYNAME)) {
vshDebug(ctl, VSH_ERR_DEBUG, "%s: <%s> trying as network NAME\n",
cmd->def->name, optname);
network = virNetworkLookupByName(ctl->conn, n);
}
if (!network)
vshError(ctl, _("failed to get network '%s'"), n);
return network;
}
/*
* "net-autostart" command
*/
static const vshCmdInfo info_network_autostart[] = {
{"help", N_("autostart a network")},
{"desc",
N_("Configure a network to be automatically started at boot.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_autostart[] = {
{"network", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network name or uuid")},
{"disable", VSH_OT_BOOL, 0, N_("disable autostarting")},
{NULL, 0, 0, NULL}
};
static bool
cmdNetworkAutostart(vshControl *ctl, const vshCmd *cmd)
{
virNetworkPtr network;
const char *name;
int autostart;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (!(network = vshCommandOptNetwork(ctl, cmd, &name)))
return false;
autostart = !vshCommandOptBool(cmd, "disable");
if (virNetworkSetAutostart(network, autostart) < 0) {
if (autostart)
vshError(ctl, _("failed to mark network %s as autostarted"), name);
else
vshError(ctl, _("failed to unmark network %s as autostarted"), name);
virNetworkFree(network);
return false;
}
if (autostart)
vshPrint(ctl, _("Network %s marked as autostarted\n"), name);
else
vshPrint(ctl, _("Network %s unmarked as autostarted\n"), name);
virNetworkFree(network);
return true;
}
/*
* "net-create" command
*/
static const vshCmdInfo info_network_create[] = {
{"help", N_("create a network from an XML file")},
{"desc", N_("Create a network.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_create[] = {
{"file", VSH_OT_DATA, VSH_OFLAG_REQ, N_("file containing an XML network description")},
{NULL, 0, 0, NULL}
};
static bool
cmdNetworkCreate(vshControl *ctl, const vshCmd *cmd)
{
virNetworkPtr network;
const char *from = NULL;
bool ret = true;
char *buffer;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (vshCommandOptString(cmd, "file", &from) <= 0)
return false;
if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0)
return false;
network = virNetworkCreateXML(ctl->conn, buffer);
VIR_FREE(buffer);
if (network != NULL) {
vshPrint(ctl, _("Network %s created from %s\n"),
virNetworkGetName(network), from);
virNetworkFree(network);
} else {
vshError(ctl, _("Failed to create network from %s"), from);
ret = false;
}
return ret;
}
/*
* "net-define" command
*/
static const vshCmdInfo info_network_define[] = {
{"help", N_("define (but don't start) a network from an XML file")},
{"desc", N_("Define a network.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_define[] = {
{"file", VSH_OT_DATA, VSH_OFLAG_REQ, N_("file containing an XML network description")},
{NULL, 0, 0, NULL}
};
static bool
cmdNetworkDefine(vshControl *ctl, const vshCmd *cmd)
{
virNetworkPtr network;
const char *from = NULL;
bool ret = true;
char *buffer;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (vshCommandOptString(cmd, "file", &from) <= 0)
return false;
if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0)
return false;
network = virNetworkDefineXML(ctl->conn, buffer);
VIR_FREE(buffer);
if (network != NULL) {
vshPrint(ctl, _("Network %s defined from %s\n"),
virNetworkGetName(network), from);
virNetworkFree(network);
} else {
vshError(ctl, _("Failed to define network from %s"), from);
ret = false;
}
return ret;
}
/*
* "net-destroy" command
*/
static const vshCmdInfo info_network_destroy[] = {
{"help", N_("destroy (stop) a network")},
{"desc", N_("Forcefully stop a given network.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_destroy[] = {
{"network", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network name or uuid")},
{NULL, 0, 0, NULL}
};
static bool
cmdNetworkDestroy(vshControl *ctl, const vshCmd *cmd)
{
virNetworkPtr network;
bool ret = true;
const char *name;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (!(network = vshCommandOptNetwork(ctl, cmd, &name)))
return false;
if (virNetworkDestroy(network) == 0) {
vshPrint(ctl, _("Network %s destroyed\n"), name);
} else {
vshError(ctl, _("Failed to destroy network %s"), name);
ret = false;
}
virNetworkFree(network);
return ret;
}
/*
* "net-dumpxml" command
*/
static const vshCmdInfo info_network_dumpxml[] = {
{"help", N_("network information in XML")},
{"desc", N_("Output the network information as an XML dump to stdout.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_dumpxml[] = {
{"network", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network name or uuid")},
{"inactive", VSH_OT_BOOL, VSH_OFLAG_NONE, N_("network information of an inactive domain")},
{NULL, 0, 0, NULL}
};
static bool
cmdNetworkDumpXML(vshControl *ctl, const vshCmd *cmd)
{
virNetworkPtr network;
bool ret = true;
char *dump;
unsigned int flags = 0;
int inactive;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (!(network = vshCommandOptNetwork(ctl, cmd, NULL)))
return false;
inactive = vshCommandOptBool(cmd, "inactive");
if (inactive)
flags |= VIR_NETWORK_XML_INACTIVE;
dump = virNetworkGetXMLDesc(network, flags);
if (dump != NULL) {
vshPrint(ctl, "%s", dump);
VIR_FREE(dump);
} else {
ret = false;
}
virNetworkFree(network);
return ret;
}
/*
* "net-info" command
*/
static const vshCmdInfo info_network_info[] = {
{"help", N_("network information")},
{"desc", N_("Returns basic information about the network")},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_info[] = {
{"network", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network name or uuid")},
{NULL, 0, 0, NULL}
};
static bool
cmdNetworkInfo(vshControl *ctl, const vshCmd *cmd)
{
virNetworkPtr network;
char uuid[VIR_UUID_STRING_BUFLEN];
int autostart;
int persistent = -1;
int active = -1;
char *bridge = NULL;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (!(network = vshCommandOptNetwork(ctl, cmd, NULL)))
return false;
vshPrint(ctl, "%-15s %s\n", _("Name"), virNetworkGetName(network));
if (virNetworkGetUUIDString(network, uuid) == 0)
vshPrint(ctl, "%-15s %s\n", _("UUID"), uuid);
active = virNetworkIsActive(network);
if (active >= 0)
vshPrint(ctl, "%-15s %s\n", _("Active:"), active? _("yes") : _("no"));
persistent = virNetworkIsPersistent(network);
if (persistent < 0)
vshPrint(ctl, "%-15s %s\n", _("Persistent:"), _("unknown"));
else
vshPrint(ctl, "%-15s %s\n", _("Persistent:"), persistent ? _("yes") : _("no"));
if (virNetworkGetAutostart(network, &autostart) < 0)
vshPrint(ctl, "%-15s %s\n", _("Autostart:"), _("no autostart"));
else
vshPrint(ctl, "%-15s %s\n", _("Autostart:"), autostart ? _("yes") : _("no"));
bridge = virNetworkGetBridgeName(network);
if (bridge)
vshPrint(ctl, "%-15s %s\n", _("Bridge:"), bridge);
VIR_FREE(bridge);
virNetworkFree(network);
return true;
}
/*
* "net-list" command
*/
static const vshCmdInfo info_network_list[] = {
{"help", N_("list networks")},
{"desc", N_("Returns list of networks.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_list[] = {
{"inactive", VSH_OT_BOOL, 0, N_("list inactive networks")},
{"all", VSH_OT_BOOL, 0, N_("list inactive & active networks")},
{NULL, 0, 0, NULL}
};
static bool
cmdNetworkList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
{
bool inactive = vshCommandOptBool(cmd, "inactive");
bool all = vshCommandOptBool(cmd, "all");
bool active = !inactive || all;
int maxactive = 0, maxinactive = 0, i;
char **activeNames = NULL, **inactiveNames = NULL;
inactive |= all;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (active) {
maxactive = virConnectNumOfNetworks(ctl->conn);
if (maxactive < 0) {
vshError(ctl, "%s", _("Failed to list active networks"));
return false;
}
if (maxactive) {
activeNames = vshMalloc(ctl, sizeof(char *) * maxactive);
if ((maxactive = virConnectListNetworks(ctl->conn, activeNames,
maxactive)) < 0) {
vshError(ctl, "%s", _("Failed to list active networks"));
VIR_FREE(activeNames);
return false;
}
qsort(&activeNames[0], maxactive, sizeof(char *), vshNameSorter);
}
}
if (inactive) {
maxinactive = virConnectNumOfDefinedNetworks(ctl->conn);
if (maxinactive < 0) {
vshError(ctl, "%s", _("Failed to list inactive networks"));
VIR_FREE(activeNames);
return false;
}
if (maxinactive) {
inactiveNames = vshMalloc(ctl, sizeof(char *) * maxinactive);
if ((maxinactive =
virConnectListDefinedNetworks(ctl->conn, inactiveNames,
maxinactive)) < 0) {
vshError(ctl, "%s", _("Failed to list inactive networks"));
VIR_FREE(activeNames);
VIR_FREE(inactiveNames);
return false;
}
qsort(&inactiveNames[0], maxinactive, sizeof(char*), vshNameSorter);
}
}
vshPrintExtra(ctl, "%-20s %-10s %s\n", _("Name"), _("State"),
_("Autostart"));
vshPrintExtra(ctl, "-----------------------------------------\n");
for (i = 0; i < maxactive; i++) {
virNetworkPtr network =
virNetworkLookupByName(ctl->conn, activeNames[i]);
const char *autostartStr;
int autostart = 0;
/* this kind of work with networks is not atomic operation */
if (!network) {
VIR_FREE(activeNames[i]);
continue;
}
if (virNetworkGetAutostart(network, &autostart) < 0)
autostartStr = _("no autostart");
else
autostartStr = autostart ? _("yes") : _("no");
vshPrint(ctl, "%-20s %-10s %-10s\n",
virNetworkGetName(network),
_("active"),
autostartStr);
virNetworkFree(network);
VIR_FREE(activeNames[i]);
}
for (i = 0; i < maxinactive; i++) {
virNetworkPtr network = virNetworkLookupByName(ctl->conn, inactiveNames[i]);
const char *autostartStr;
int autostart = 0;
/* this kind of work with networks is not atomic operation */
if (!network) {
VIR_FREE(inactiveNames[i]);
continue;
}
if (virNetworkGetAutostart(network, &autostart) < 0)
autostartStr = _("no autostart");
else
autostartStr = autostart ? _("yes") : _("no");
vshPrint(ctl, "%-20s %-10s %-10s\n",
inactiveNames[i],
_("inactive"),
autostartStr);
virNetworkFree(network);
VIR_FREE(inactiveNames[i]);
}
VIR_FREE(activeNames);
VIR_FREE(inactiveNames);
return true;
}
/*
* "net-name" command
*/
static const vshCmdInfo info_network_name[] = {
{"help", N_("convert a network UUID to network name")},
{"desc", ""},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_name[] = {
{"network", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network uuid")},
{NULL, 0, 0, NULL}
};
static bool
cmdNetworkName(vshControl *ctl, const vshCmd *cmd)
{
virNetworkPtr network;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (!(network = vshCommandOptNetworkBy(ctl, cmd, NULL,
VSH_BYUUID)))
return false;
vshPrint(ctl, "%s\n", virNetworkGetName(network));
virNetworkFree(network);
return true;
}
/*
* "net-start" command
*/
static const vshCmdInfo info_network_start[] = {
{"help", N_("start a (previously defined) inactive network")},
{"desc", N_("Start a network.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_start[] = {
{"network", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network name or uuid")},
{NULL, 0, 0, NULL}
};
static bool
cmdNetworkStart(vshControl *ctl, const vshCmd *cmd)
{
virNetworkPtr network;
bool ret = true;
const char *name = NULL;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (!(network = vshCommandOptNetwork(ctl, cmd, &name)))
return false;
if (virNetworkCreate(network) == 0) {
vshPrint(ctl, _("Network %s started\n"), name);
} else {
vshError(ctl, _("Failed to start network %s"), name);
ret = false;
}
virNetworkFree(network);
return ret;
}
/*
* "net-undefine" command
*/
static const vshCmdInfo info_network_undefine[] = {
{"help", N_("undefine an inactive network")},
{"desc", N_("Undefine the configuration for an inactive network.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_undefine[] = {
{"network", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network name or uuid")},
{NULL, 0, 0, NULL}
};
static bool
cmdNetworkUndefine(vshControl *ctl, const vshCmd *cmd)
{
virNetworkPtr network;
bool ret = true;
const char *name;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (!(network = vshCommandOptNetwork(ctl, cmd, &name)))
return false;
if (virNetworkUndefine(network) == 0) {
vshPrint(ctl, _("Network %s has been undefined\n"), name);
} else {
vshError(ctl, _("Failed to undefine network %s"), name);
ret = false;
}
virNetworkFree(network);
return ret;
}
/*
* "net-uuid" command
*/
static const vshCmdInfo info_network_uuid[] = {
{"help", N_("convert a network name to network UUID")},
{"desc", ""},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_uuid[] = {
{"network", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network name")},
{NULL, 0, 0, NULL}
};
static bool
cmdNetworkUuid(vshControl *ctl, const vshCmd *cmd)
{
virNetworkPtr network;
char uuid[VIR_UUID_STRING_BUFLEN];
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (!(network = vshCommandOptNetworkBy(ctl, cmd, NULL,
VSH_BYNAME)))
return false;
if (virNetworkGetUUIDString(network, uuid) != -1)
vshPrint(ctl, "%s\n", uuid);
else
vshError(ctl, "%s", _("failed to get network UUID"));
virNetworkFree(network);
return true;
}
/*
* "net-edit" command
*/
static const vshCmdInfo info_network_edit[] = {
{"help", N_("edit XML configuration for a network")},
{"desc", N_("Edit the XML configuration for a network.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_network_edit[] = {
{"network", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network name or uuid")},
{NULL, 0, 0, NULL}
};
static char *vshNetworkGetXMLDesc(virNetworkPtr network)
{
unsigned int flags = VIR_NETWORK_XML_INACTIVE;
char *doc = virNetworkGetXMLDesc(network, flags);
if (!doc && last_error->code == VIR_ERR_INVALID_ARG) {
/* The server side libvirt doesn't support
* VIR_NETWORK_XML_INACTIVE, so retry without it.
*/
virFreeError(last_error);
last_error = NULL;
flags &= ~VIR_NETWORK_XML_INACTIVE;
doc = virNetworkGetXMLDesc(network, flags);
}
return doc;
}
static bool
cmdNetworkEdit(vshControl *ctl, const vshCmd *cmd)
{
bool ret = false;
virNetworkPtr network = NULL;
virNetworkPtr network_edited = NULL;
if (!vshConnectionUsability(ctl, ctl->conn))
goto cleanup;
network = vshCommandOptNetwork(ctl, cmd, NULL);
if (network == NULL)
goto cleanup;
#define EDIT_GET_XML vshNetworkGetXMLDesc(network)
#define EDIT_NOT_CHANGED \
vshPrint(ctl, _("Network %s XML configuration not changed.\n"), \
virNetworkGetName(network)); \
ret = true; goto edit_cleanup;
#define EDIT_DEFINE \
(network_edited = virNetworkDefineXML(ctl->conn, doc_edited))
#define EDIT_FREE \
if (network_edited) \
virNetworkFree(network_edited);
#include "virsh-edit.c"
vshPrint(ctl, _("Network %s XML configuration edited.\n"),
virNetworkGetName(network_edited));
ret = true;
cleanup:
if (network)
virNetworkFree(network);
if (network_edited)
virNetworkFree(network_edited);
return ret;
}