[libvirt] [PATCH 03/12] network: Check for active network during networkGetDHCPLeases

[Lin Ma]

On 2020-09-11 13:22, Ján Tomko wrote:
> On a Friday in 2020, Lin Ma wrote:
>> It doesn't make sense querying dhcp leases for interfaces against an 
>> inactive
>> network, This patch adds a check to see if the network is active.
>> 
> 
> Why would the network need to be active? the leases are still there:
> 
> $ virsh net-destroy default
> Network default destroyed
> 
> $ virsh net-dhcp-leases default
>  Expiry Time           MAC address         Protocol   IP address
>     Hostname   Client ID or DUID
> ------------------------------------------------------------------------------------------------------------
>  2020-09-11 16:16:59   52:54:00:55:7c:df   ipv4
> 192.168.122.183/24   -          01:52:54:00:55:7c:df
> 

IMO the conception of leases doesn't make sense in case of no dhcp 
server daemon running.
I'll carry this patch in V2 patch set, Please feel free to decline it.

Thanks,
Lin

>> ---
>> src/network/bridge_driver.c | 7 +++++++
>> 1 file changed, 7 insertions(+)
>> 
>> diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
>> index 87d7acab06..1dffc2309f 100644
>> --- a/src/network/bridge_driver.c
>> +++ b/src/network/bridge_driver.c
>> @@ -4068,6 +4068,13 @@ networkGetDHCPLeases(virNetworkPtr net,
>>     if (virNetworkGetDHCPLeasesEnsureACL(net->conn, def) < 0)
>>         goto cleanup;
>> 
>> +    if (!virNetworkObjIsActive(obj)) {
>> +        virReportError(VIR_ERR_OPERATION_INVALID,
>> +                       _("network '%s' is not active"),
>> +                       def->name);
>> +        goto error;
>> +    }
>> +
>>     /* Retrieve custom leases file location */
>>     custom_lease_file = networkDnsmasqLeaseFileNameCustom(driver, 
>> def->bridge);
>> 
>> -- 2.26.0
>>