[libvirt] [PATCH v2 2/2] Don't drop expired lease while reading custom leases file

Michal Privoznik mprivozn at redhat.com
Mon Oct 3 07:49:55 UTC 2016


On 30.09.2016 17:11, Nehal J Wani wrote:
> Libvirt, on its own, shouldn't decide whether an expired lease should
> stay in the custom leases database or not. It should rather rely on
> the 'DEL' event from dnsmasq.
> ---
>  src/util/virlease.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/src/util/virlease.c b/src/util/virlease.c
> index 920ebaf..b49105d 100644
> --- a/src/util/virlease.c
> +++ b/src/util/virlease.c
> @@ -57,7 +57,6 @@ virLeaseReadCustomLeaseFile(virJSONValuePtr leases_array_new,
>  {
>      char *lease_entries = NULL;
>      virJSONValuePtr leases_array = NULL;
> -    long long currtime = 0;
>      long long expirytime;
>      int custom_lease_file_len = 0;
>      virJSONValuePtr lease_tmp = NULL;
> @@ -66,8 +65,6 @@ virLeaseReadCustomLeaseFile(virJSONValuePtr leases_array_new,
>      size_t i;
>      int ret = -1;
>  
> -    currtime = (long long) time(NULL);
> -
>      /* Read entire contents */
>      if ((custom_lease_file_len = virFileReadAll(custom_lease_file,
>                                                  VIR_NETWORK_DHCP_LEASE_FILE_SIZE_MAX,
> @@ -109,11 +106,6 @@ virLeaseReadCustomLeaseFile(virJSONValuePtr leases_array_new,
>                             _("failed to parse json"));
>              goto cleanup;
>          }
> -        /* Check whether lease has expired or not */
> -        if (expirytime < currtime) {
> -            i++;
> -            continue;
> -        }
>  
>          /* Check whether lease has to be included or not */
>          if (ip_to_delete && STREQ(ip_tmp, ip_to_delete)) {
> 

ACK

We are currently in the freeze preparing for the release. I'll keep this
locally and push them after the release.

Also, as we discussed earlier on IRC, I kind of wondered that
networkGetDHCPLeases() from src/network/bridge_driver.c does not need
change at all. And to my surprise, it is basically duplicating
virLeaseReadCustomLeaseFile() internals. Can you please look into it -
whether the code could be merged? Thanks,

Michal




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