[libvirt] [PATCHv7 4/4] domifaddr: Add virsh support
Nehal J Wani
nehaljw.kkd1 at gmail.com
Wed Dec 17 00:16:23 UTC 2014
tools/virsh-domain-monitor.c
* Introduce new command : domifaddr
Usage: domifaddr <domain> [interface] [--full] [--lease] [--agent]
Example outputs:
virsh # domifaddr f20
Name MAC address Protocol Address
-------------------------------------------------------------------------------
lo 00:00:00:00:00:00 ipv4 127.0.0.1/8
- - ipv6 ::1/128
eth0 52:54:00:2e:45:ce ipv4 10.1.33.188/24
- - ipv6 2001:db8:0:f101::2/64
- - ipv6 fe80::5054:ff:fe2e:45ce/64
eth1 52:54:00:b1:70:19 ipv4 192.168.105.201/16
- - ipv4 192.168.201.195/16
- - ipv6 fe80::5054:ff:feb1:7019/64
eth2 52:54:00:36:2a:e5 N/A N/A
eth3 52:54:00:20:70:3d ipv4 192.168.105.240/16
- - ipv6 fe80::5054:ff:fe20:703d/64
virsh # domifaddr f20 eth1 --agent
Name MAC address Protocol Address
-------------------------------------------------------------------------------
eth1 52:54:00:b1:70:19 ipv4 192.168.105.201/16
- - ipv4 192.168.201.195/16
- - ipv6 fe80::5054:ff:feb1:7019/64
virsh # domifaddr f20 eth0 --agent --full
Name MAC address Protocol Address
-------------------------------------------------------------------------------
eth0 52:54:00:2e:45:ce ipv4 10.1.33.188/24
eth0 52:54:00:2e:45:ce ipv6 2001:db8:0:f101::2/64
eth0 52:54:00:2e:45:ce ipv6 fe80::5054:ff:fe2e:45ce/64
tools/virsh.pod
* Document new command
Signed-off-by: Nehal J Wani <nehaljw.kkd1 at gmail.com>
---
tools/virsh-domain-monitor.c | 141 ++++++++++++++++++++++++++++++++++++++++++
tools/virsh.pod | 16 +++++
2 files changed, 157 insertions(+)
diff --git a/tools/virsh-domain-monitor.c b/tools/virsh-domain-monitor.c
index 259400f..5542ad1 100644
--- a/tools/virsh-domain-monitor.c
+++ b/tools/virsh-domain-monitor.c
@@ -2170,6 +2170,141 @@ cmdDomstats(vshControl *ctl, const vshCmd *cmd)
return ret;
}
+/* "domifaddr" command
+ */
+static const vshCmdInfo info_domifaddr[] = {
+ {"help", N_("Get network interfaces' addresses for a running domain")},
+ {"desc", N_("Get network interfaces' addresses for a running domain")},
+ {NULL, NULL}
+};
+
+static const vshCmdOptDef opts_domifaddr[] = {
+ {.name = "domain",
+ .type = VSH_OT_DATA,
+ .flags = VSH_OFLAG_REQ,
+ .help = N_("domain name, id or uuid")},
+ {.name = "interface",
+ .type = VSH_OT_DATA,
+ .flags = VSH_OFLAG_NONE,
+ .help = N_("network interface name")},
+ {.name = "full",
+ .type = VSH_OT_BOOL,
+ .flags = VSH_OFLAG_NONE,
+ .help = N_("display full fields")},
+ {.name = "lease",
+ .type = VSH_OT_BOOL,
+ .flags = VSH_OFLAG_NONE,
+ .help = N_("parse dhcp lease file")},
+ {.name = "agent",
+ .type = VSH_OT_BOOL,
+ .flags = VSH_OFLAG_NONE,
+ .help = N_("query qemu guest agent")},
+ {.name = NULL}
+};
+
+static bool
+cmdDomIfAddr(vshControl *ctl, const vshCmd *cmd)
+{
+ virDomainPtr dom = NULL;
+ const char *interface = NULL;
+ virDomainInterfacePtr *ifaces = NULL;
+ size_t i, j;
+ int ifaces_count = 0;
+ unsigned int flags = 0;
+ bool ret = false;
+ bool full = vshCommandOptBool(cmd, "full");
+
+ if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
+ return false;
+
+ if (vshCommandOptString(cmd, "interface", &interface) < 0)
+ goto cleanup;
+
+ if (vshCommandOptBool(cmd, "lease"))
+ flags |= VIR_DOMAIN_INTERFACE_ADDRESSES_LEASE;
+
+ if (vshCommandOptBool(cmd, "agent"))
+ flags |= VIR_DOMAIN_INTERFACE_ADDRESSES_AGENT;
+
+ if ((ifaces_count = virDomainInterfaceAddresses(dom, &ifaces, flags)) < 0) {
+ vshError(ctl, _("Failed to query for interfaces addresses"));
+ goto cleanup;
+ }
+
+ vshPrintExtra(ctl, " %-10s %-20s %-8s %s\n%s%s\n", _("Name"),
+ _("MAC address"), _("Protocol"), _("Address"),
+ _("-------------------------------------------------"),
+ _("------------------------------"));
+
+ for (i = 0; i < ifaces_count; i++) {
+ virDomainInterfacePtr iface = ifaces[i];
+ const char *hwaddr = "";
+ const char *ip_addr_str = NULL;
+ const char *type = NULL;
+
+ if (interface && STRNEQ(interface, iface->name))
+ continue;
+
+ hwaddr = iface->hwaddr;
+
+ /* When the interface has no IP address */
+ if (!iface->naddrs) {
+ vshPrintExtra(ctl, " %-10s %-17s %-12s %s\n",
+ iface->name, hwaddr, "N/A", "N/A");
+ continue;
+ }
+
+ for (j = 0; j < iface->naddrs; j++) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+
+ switch (iface->addrs[j].type) {
+ case VIR_IP_ADDR_TYPE_IPV4:
+ type = "ipv4";
+ break;
+ case VIR_IP_ADDR_TYPE_IPV6:
+ type = "ipv6";
+ break;
+ }
+
+ virBufferAsprintf(&buf, "%-12s %s/%d",
+ type, iface->addrs[j].addr,
+ iface->addrs[j].prefix);
+
+ if (virBufferError(&buf)) {
+ virBufferFreeAndReset(&buf);
+ virReportOOMError();
+ goto cleanup;
+ }
+
+ ip_addr_str = virBufferContentAndReset(&buf);
+
+ if (!ip_addr_str)
+ ip_addr_str = "";
+
+ /* Don't repeat interface name */
+ if (full || !j)
+ vshPrintExtra(ctl, " %-10s %-17s %s\n",
+ iface->name, hwaddr, ip_addr_str);
+ else
+ vshPrintExtra(ctl, " %-10s %-17s %s\n",
+ "-", "-", ip_addr_str);
+
+ virBufferFreeAndReset(&buf);
+ }
+ }
+
+ ret = true;
+
+ cleanup:
+ if (ifaces)
+ for (i = 0; i < ifaces_count; i++)
+ virDomainInterfaceFree(ifaces[i]);
+ VIR_FREE(ifaces);
+
+ virDomainFree(dom);
+ return ret;
+}
+
const vshCmdDef domMonitoringCmds[] = {
{.name = "domblkerror",
.handler = cmdDomBlkError,
@@ -2207,6 +2342,12 @@ const vshCmdDef domMonitoringCmds[] = {
.info = info_domif_getlink,
.flags = 0
},
+ {.name = "domifaddr",
+ .handler = cmdDomIfAddr,
+ .opts = opts_domifaddr,
+ .info = info_domifaddr,
+ .flags = 0
+ },
{.name = "domiflist",
.handler = cmdDomiflist,
.opts = opts_domiflist,
diff --git a/tools/virsh.pod b/tools/virsh.pod
index 0eba2c1..00aaa12 100644
--- a/tools/virsh.pod
+++ b/tools/virsh.pod
@@ -729,6 +729,22 @@ B<Explanation of fields> (fields appear in the following order):
flush_total_times - total time flush operations took (ns)
<-- other fields provided by hypervisor -->
+
+=item B<domifaddr> I<domain> [I<interface>] [I<--full>]
+ [I<--snoop>]] [I<--lease>] [I<--agent>]
+
+Get a list of interfaces of a running domain along with their IP and MAC
+addresses, or limited output just for one interface if I<interface> is
+specified. Note that I<interface> can be driver dependent, it can be the name
+within guest OS or the name you would see in domain XML. Moreover, the whole
+command may require a guest agent to be configured for the queried domain under
+some drivers, notably qemu. If I<--full> is specified, the interface name is
+always displayed when the interfac has multiple addresses or alias, otherwise
+it only displays the interface name for the first address, and "-" for the
+others. If I<--lease> is specified, dhcp file is parsed and if I<--agent> is
+specified, qemu guest agent is queried. It is not recommended to mix I<--agent>
+with I<--lease> as it may return ambiguous results.
+
=item B<domifstat> I<domain> I<interface-device>
Get network interface stats for a running domain.
--
1.7.10.4
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