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46 lines
2.1 KiB
Bash
Executable File
46 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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BLOBDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
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FINAL_ME_BIN_SHA256SUM="1eef6716aa61dd844d58eca15a85faa1bf5f82715defd30bd3373e79ca1a3339 $BLOBDIR/me.bin"
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ME_EXE_SHA256SUM="48f18d49f3c7c79fa549a980f14688bc27c18645f64d9b6827a15ef5c547d210 83rf46ww.exe"
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ME7_5M_UPD_PRODUCTION_SHA256SUM="760b0776b99ba94f56121d67c1f1226c77f48bd3b0799e1357a51842c79d3d36 app/ME7_5M_UPD_Production.bin"
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if [ -e "$BLOBDIR/me.bin" ]; then
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echo "$BLOBDIR/me.bin found..."
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if ! echo "$FINAL_ME_BIN_SHA256SUM" | sha256sum --check; then
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echo "$BLOBDIR/me.bin doesn't pass integrity validation. Continuing..."
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rm -f "$BLOBDIR/me.bin"
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else
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echo "$BLOBDIR/me.bin already extracted and neutered outside of BUP"
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exit 0
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fi
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fi
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echo "### Creating temp dir"
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extractdir=$(mktemp -d)
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cd "$extractdir" || exit 1
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echo "### Downloading https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/83rf46ww.exe..."
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wget https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/83rf46ww.exe || { echo "ERROR: wget not found" && exit 1; }
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echo "### Verifying expected hash of 83rf46ww.exe"
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echo "$ME_EXE_SHA256SUM" | sha256sum --check || { echo "Failed sha256sum verification on downloaded binary..." && exit 1; }
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echo "### Extracting 83rf46ww.exe..."
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innoextract -I app/ME7_5M_UPD_Production.bin 83rf46ww.exe || { echo "Failed calling innoextract. Tool installed on host?" && exit 1; }
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echo "### Verifying expected hash of app/ME7_5M_UPD_Production.bin"
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echo "$ME7_5M_UPD_PRODUCTION_SHA256SUM" | sha256sum --check || { echo "Failed sha256sum verification on extracted binary..." && exit 1; }
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echo "###Generating neuter+deactivate+maximize reduction of ME on app/ME7_5M_UPD_Production.bin, outputting minimized ME under $BLOBDIR/me.bin... "
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( python3 "$BLOBDIR/me7_update_parser.py" -O "$BLOBDIR/me.bin" app/ME7_5M_UPD_Production.bin ) || { echo "Failed to generate ME binary..." && exit 1; }
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echo "### Verifying expected hash of me.bin"
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echo "$FINAL_ME_BIN_SHA256SUM" | sha256sum --check || { echo "Failed sha256sum verification on final binary..." && exit 1; }
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echo "###Cleaning up..."
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cd - || exit 1
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rm -r "$extractdir"
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