Age | Commit message (Collapse) | Author |
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Found when upgrading Ubuntu to 18.10.
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The HSM itself should be detecting carrier drop on its RPC port, but I
haven't figured out where the DCD bit is hiding in the STM32 UART API,
and the muxd has to be involved in this in any case, since only the
muxd knows when an individual client connection has dropped. So, for
the moment, we handle all of this in the muxd.
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We're using non-blocking I/O in any case, might as well take advantage
of it to keep console output a little smoother.
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Probably reached the point of diminishing returns for trying to get
probing to work better. Best option, where practical, is to avoid
probing completely; when necessary, best run it once then avoid
repeating it. cryptech_muxd will probe if requested, but probing is
never going to be reliable. Dedicated VID:PID would be much better.
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Internal probe code mostly works, probably about as well as
cryptech_probe ever did, but almost certainly needs timeouts around
its I/O calls, and perhaps additional error handling. At the moment,
it works except when it doesn't, just like cryptech_probe.
Some day we'll get away from this kludge, but not today.
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Renamed multiplexer to cryptech_muxd, since it now handles both RPC and CTY.
Added new program cryptech_console to act as client for CTY multiplexer.
Might want to add console logging capability eventually, not today.
Probably want to incorporate UART probing (what cryptech_probe does
now) eventually, also not today.
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