cilium-dbg: Add bpf ipcache match #38579
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Besides the pod IPs, the ipcache BPF map now stores the pod CIDRs too. Therefore, `cilium-dbg bpf ipcache get <addr>` may match such a pod CIDR entry even if the pod IP is not present in the map. The `match` subcommand works similar to the `get` one, but allows to lookup a key using an exact match, either an IP or a CIDR. Thus, given an IP, With `match` it is possible to differentiate the cases when the exact IP or a CIDR containing the IP are in the ipcache. Signed-off-by: Fabio Falzoi <fabio.falzoi@isovalent.com>
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Besides the pod IPs, the ipcache BPF map now stores the pod CIDRs too.
Therefore,
cilium-dbg bpf ipcache get <addr>may match such a pod CIDRentry even if the pod IP is not present in the map.
The
matchsubcommand works similar to thegetone, but allows tolookup a key using an exact match, either an IP or a CIDR. Thus, given an
IP, With
matchit is possible to differentiate the cases when theexact IP or a CIDR containing the IP are in the ipcache.
Related: #38483 and #38566
Blocked by: #38483