10:45 a.m.
On Fri, Aug 23, 2013 at 8:16 PM, Doug Goldstein <cardoe(a)gentoo.org> wrote:
On Thu, Aug 22, 2013 at 5:18 PM, nehaljwani <nehaljw.kkd1(a)gmail.com>
wrote:
>
> Use virDomainInterfacesAddresses in virsh
>
> tools/virsh-domain-monitor.c
> * Introduce new command : domifaddr
>
> virsh # domifaddr f18
> Name MAC address IP address
> ---------------------------------------------------
> lo 00:00:00:00:00:00 127.0.0.1/8 ::1/128
> eth0 52:54:00:89:ad:35 192.168.102.142/24fe80::5054:ff:fe89:ad35/64
> eth1 52:54:00:d3:39:ee 192.168.103.183/24fe80::5054:ff:fed3:39ee/64
> eth2 52:54:00:fe:4c:4f 192.168.101.197/24fe80::5054:ff:fefe:4c4f/64
> eth3 52:54:00:89:4e:97 192.168.101.130/24fe80::5054:ff:fe89:4e97/64
>
Not a review, but a question. How does this work with IP aliases? Will it
show all
the aliases 1 per line or just show the primary address?
>
> tools/virsh.pod
> * Document new command
>
> ---
> tools/virsh-domain-monitor.c | 99
++++++++++++++++++++++++++++++++++++++++++++
> tools/virsh.pod | 10 +++++
> 2 files changed, 109 insertions(+)
>
> diff --git a/tools/virsh-domain-monitor.c b/tools/virsh-domain-monitor.c
> index b29b82a..91efa71 100644
> --- a/tools/virsh-domain-monitor.c
> +++ b/tools/virsh-domain-monitor.c
> @@ -1871,6 +1871,99 @@ cleanup:
> }
> #undef FILTER
>
> +/* "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[] = {
> + {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or
uuid")},
> + {"interface", VSH_OT_DATA, VSH_OFLAG_NONE,
N_("network interface
name")},
> + {NULL, 0, 0, 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;
> +
> + if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
> + return false;
> +
> + if (vshCommandOptString(cmd, "interface", &interface) < 0) {
> + goto cleanup;
> + }
> +
> + if ((ifaces_count = virDomainInterfacesAddresses(dom, &ifaces,
flags))
< 0) {
> + vshError(ctl, _("Failed to query for interfaces
addresses"));
> + goto cleanup;
> + }
> +
> + vshPrintExtra(ctl, " %-10s %-17s %s\n%s\n",
> + _("Name"), _("MAC address"), _("IP
address"),
> +
"---------------------------------------------------");
> +
> + for (i = 0; i < ifaces_count; i++) {
> + virDomainInterfacePtr iface = ifaces[i];
> + virBuffer buf = VIR_BUFFER_INITIALIZER;
> + const char *hwaddr = "";
> + const char *ip_addr_str = NULL;
> +
> + if (interface && STRNEQ(interface, iface->name)) {
> + virBufferFreeAndReset(&buf);
> + continue;
> + }
> +
> + if (iface->hwaddr)
> + hwaddr = iface->hwaddr;
> +
> + for (j = 0; j < iface->naddrs; j++) {
> + if (j)
> + virBufferAddChar(&buf, ' ');
> + virBufferAsprintf(&buf, "%s/%d",
> + iface->addrs[j].addr,
> + iface->addrs[j].prefix);
> + }
> +
> + if (virBufferError(&buf)) {
> + virBufferFreeAndReset(&buf);
> + virReportOOMError();
> + return ret;
> + }
> +
> + ip_addr_str = virBufferContentAndReset(&buf);
> +
> + if (!ip_addr_str)
> + ip_addr_str = "";
> +
> + vshPrintExtra(ctl, " %-10s %-17s %s\n",
> + iface->name, hwaddr, ip_addr_str);
> +
> + virBufferFreeAndReset(&buf);
> + }
> +
> + ret = true;
> +
> +cleanup:
> + for (i = 0; i < ifaces_count; i++) {
> + if (ifaces[i])
> + virDomainInterfaceFree(ifaces[i]);
> + }
> + VIR_FREE(ifaces);
> +
> + virDomainFree(dom);
> + return ret;
> +}
> +
> const vshCmdDef domMonitoringCmds[] = {
> {.name = "domblkerror",
> .handler = cmdDomBlkError,
> @@ -1944,5 +2037,11 @@ const vshCmdDef domMonitoringCmds[] = {
> .info = info_list,
> .flags = 0
> },
> + {.name = "domifaddr",
> + .handler = cmdDomIfAddr,
> + .opts = opts_domifaddr,
> + .info = info_domifaddr,
> + .flags = 0
> + },
> {.name = NULL}
> };
> diff --git a/tools/virsh.pod b/tools/virsh.pod
> index 0ae5178..008ffea 100644
> --- a/tools/virsh.pod
> +++ b/tools/virsh.pod
> @@ -636,6 +636,16 @@ 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>]
> +
> +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.
> +
> =item B<domifstat> I<domain> I<interface-device>
>
> Get network interface stats for a running domain.
> --
> 1.7.11.7
>
> --
> libvir-list mailing list
> libvir-list(a)redhat.com
> https://www.redhat.com/mailman/listinfo/libvir-list
--
Doug Goldstein
The leases method will be applied to this API when
virNetworkGetDHCPLeases() API is accepted, which is the next step after
this.
Refer: http://www.redhat.com/archives/libvir-list/2013-July/msg01603.html and
its followups.
The output from the virNetworkGetDHCPLeases will be something of this kind:
virsh # net-dhcp-leases default
Virtual Network Expiry Time MAC address IP address
Hostname ClientId
------------------------------------------------------------
----------------------------------------
default 16-08-2013 03:53:11 52:54:00:89:4e:97
192.168.101.130 f18 *
default 16-08-2013 03:45:20 52:54:00:fe:4c:4f
192.168.101.197 * *
--
Nehal J Wani
UG3, BTech CS+MS(CL)
IIIT-Hyderabad
http://commandlinewani.blogspot.com