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Networking v2 Extensions Networkipavailabilities cannot unmarshal into a *big.Int #2233
Description
If create big IPv6 subnet and try to collect information about available ips rise exception:
math/big: cannot unmarshal "4.722366482869645e+21" into a *big.Int
It happens because resopnse from networkipavailabilities.List() decoded to json and field "total_ips": 4722366482869645213694 decoded as total_ips:4.722366482869645e+21
allPagesNetworkIPAvailabilities, err := networkipavailabilities.List(client, networkipavailabilities.ListOpts{}).AllPages()
if err != nil {
fmt.Println(err)
}
After that if we try to extract pages like that:
_, err = networkipavailabilities.ExtractNetworkIPAvailabilities(allPagesNetworkIPAvailabilities)
if err != nil {
fmt.Println(err)
}
we will have exception
math/big: cannot unmarshal "4.722366482869645e+21" into a *big.Int
Activity
rrraditya commentedon Oct 19, 2021
hi @alexeymyltsev
I can see that no one handling this issue.
Do you have any plan or idea on this?
cause solving this issue will help us a lot and maybe a lot of users too.
Thank you.
mstinsky commentedon Sep 29, 2022
I just ran into the same issue with the openstack exporter where we run into the following error:
This error is triggered by an ipv6 subnet which has
1208925819614629174706175total ip's. And the deconding runs into the same issue as described by @alexeymyltsevmartialblog commentedon Nov 11, 2022
Hi, I been looking into this a bit.
I assume the underlying issue is when decoding a JSON number into an interface{}, the value will be of type float64 regardless of the original type.
See: https://go.dev/play/p/s3LhzDs-Mu5
I'm not yet sure where exactly this might happen in the gophercloud code base.