yahoo-eng-team team mailing list archive

[Harald Jensås <hjensas@xxxxxxxxxx>]

Public bug reported:

When subnets are created using a cidr the value provided is
normalized/converted to a proper subnet

https://opendev.org/openstack/neutron/src/branch/master/neutron/db/db_base_plugin_v2.py#L818-L820


818            # turn the CIDR into a proper subnet
819            net = netaddr.IPNetwork(s['cidr'])
820            subnet['subnet']['cidr'] = '%s/%s' % (net.network, net.prefixlen)


I.e if the user create using `192.168.100.1/24` as the cidr the subnet create is successfull. The cidr is turned into the proper subnet `192.168.100.0/24` internally in the pre-commit.


When listing subnets and filtering using the same value for the cidr the return is an empty list. Example:

$ curl -s -H "X-Auth-Token: $(openstack token issue -c id -f value)" -H "Content-Type: application/json" http://192.168.122.103:9696/v2.0/subnets?cidr=192.168.100.1/24 | json_reformat 
{
    "subnets": [

    ]
}

A user should be able to find the subnet by filtering using the same
`192.168.100.1/24` value used when creating the subnet.

** Affects: neutron
     Importance: Undecided
         Status: New


** Tags: queens-backport-potential

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https://bugs.launchpad.net/bugs/1831811

Title:
  Unable to filter using same cidr value as used for subnet create

Status in neutron:
  New

Bug description:
  When subnets are created using a cidr the value provided is
  normalized/converted to a proper subnet

  https://opendev.org/openstack/neutron/src/branch/master/neutron/db/db_base_plugin_v2.py#L818-L820

  
  818            # turn the CIDR into a proper subnet
  819            net = netaddr.IPNetwork(s['cidr'])
  820            subnet['subnet']['cidr'] = '%s/%s' % (net.network, net.prefixlen)

  
  I.e if the user create using `192.168.100.1/24` as the cidr the subnet create is successfull. The cidr is turned into the proper subnet `192.168.100.0/24` internally in the pre-commit.

  
  When listing subnets and filtering using the same value for the cidr the return is an empty list. Example:

  $ curl -s -H "X-Auth-Token: $(openstack token issue -c id -f value)" -H "Content-Type: application/json" http://192.168.122.103:9696/v2.0/subnets?cidr=192.168.100.1/24 | json_reformat 
  {
      "subnets": [

      ]
  }

  A user should be able to find the subnet by filtering using the same
  `192.168.100.1/24` value used when creating the subnet.

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