38 lines
1.4 KiB
Bash
Executable File
38 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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# usage: install-bluetooth <source_dir> <destdir>
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# source_dir contains plain-text files of any filename.
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# for each file, this extracts the MAC and creates a symlink in destdir which
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# points to the original file, using the MAC name as file path
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#
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# bluetooth connection structure is /var/lib/bluetooth/<HOST_MAC>/<DEVICE_MAX>/{attributes,info}
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# bluetoothd/main.conf options can be found here:
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# - <https://pythonhosted.org/BT-Manager/config.html>
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# can be set via nixos' `hardware.bluetooth.settings`
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srcdir="$1"
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destdir="$2"
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if [ "x$destdir" = "x" ]
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then
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devmac=$(cat /sys/kernel/debug/bluetooth/hci0/identity | cut -f 1 -d' ' | tr "a-z" "A-Z")
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# default to the first MAC address on the host
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destdir="/var/lib/bluetooth/$devmac"
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test -d "$destdir" || mkdir "$destdir" || test -d "$destdir"
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fi
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for f in $(ls "$srcdir")
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do
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mac=$(sed -rn 's/# MAC=(.*)/\1/p' "$srcdir/$f")
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condir="$destdir/$mac"
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if ! test -f "$condir/info"
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then
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# don't *overwrite* pairings. instead, only copy the device data if the host doesn't yet know about it.
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# unfortunately, it seems that for most BT devices i can't share link keys across hosts.
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# perhaps i could using `bdaddr` to force a shared host MAC across all hosts, but that doesn't work for all manufacturers.
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# instead, my bluetooth "secrets" are mostly just a list of MACs i want a host to trust.
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mkdir "$condir"
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cp "$srcdir/$f" "$condir/info"
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touch "$condir/attributes"
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fi
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done
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