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Add a GENetLink.swift layer over the core NLSocket implementing generic netlink: resolve a family by name via the nlctrl controller (CTRL_CMD_GETFAMILY) and issue typed genl requests, decoding the genlmsghdr command/version and response attributes. Because the core NLSocket_CB_VALID dispatch only understands rtnetlink/netfilter objects, the genl layer installs its own valid/error callbacks on the underlying socket and tracks pending requests by sequence number. Wire libnl-genl-3 into the package and CNetLink shim, and add nltool genl_family and ethtool_pause subcommands demonstrating CTRL_CMD_GETFAMILY multicast-group listing and ETHTOOL_MSG_PAUSE_GET respectively.
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Add a GENetLink.swift layer over the core NLSocket implementing generic netlink: resolve a family by name via the nlctrl controller (CTRL_CMD_GETFAMILY) and issue typed genl requests, decoding the genlmsghdr command/version and response attributes. Because the core NLSocket_CB_VALID dispatch only understands rtnetlink/netfilter objects, the genl layer installs its own valid/error callbacks on the underlying socket and tracks pending requests by sequence number.
Wire libnl-genl-3 into the package and CNetLink shim, and add nltool genl_family and ethtool_pause subcommands demonstrating CTRL_CMD_GETFAMILY multicast-group listing and ETHTOOL_MSG_PAUSE_GET respectively.