On Thu, 29 Aug 2024 19:58:44 +1000 David Gibson <david(a)gibson.dropbear.id.au> wrote:As discussed on our recent call, this implements basing which ports we consider "ephemeral" on probing the host's settings, rather than just assuming the RFC 6335 recommended values, which are not what Linux uses by default. I think this is more correct, but additionally using the Linux values means we consider more ports ephemeral, reducing kernel memory consumption for -t all -u all. Changes in v3: * Used in_port_t instead of plan uint16_t * Considered using sscanf() rather than strchr() + strtol(), but decided against it. I can never remember exactly what is and isn't accepted by scanf(), plus clang-tidy complained about it. Changes in v2: * Add missing close() for the sysctl fileApplied. -- Stefano