98 lines
1.8 KiB
Bash
Executable File
98 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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# grub2-verify
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# Checks the signatures of every file which is has a signature in /boot.
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# Author: Bandie
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# Licence: GNU-GPLv3
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red=$(tput setaf 1)
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green=$(tput setaf 2)
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normal=$(tput sgr0)
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all_files=( )
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error_files=( )
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missing_files=( )
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# Signature check part + error counter + file counter + file list
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echo "Checking signatures in /boot..." >&2
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while IFS= read -r -d '' i
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do
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if ! gpg --verify-files "$i" >/dev/null 2>&1
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then
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error_files+=( "$i" )
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fi
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all_files+=( "$i" )
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done < <(find /boot -iname "efi" -prune -o -type f -name "*.sig" -print0)
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echo "Checking missing signatures in /boot..." >&2
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while IFS= read -r -d '' i
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do
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if test ! -f ${i}.sig
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then
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missing_files+=( "$i" )
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fi
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done < <(find /boot -iname "efi" -prune -o -type f -not -name "*.sig" -print0)
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# Nothing to verify? Exit 2.
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if (( ${#all_files[@]} == 0 ))
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then
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echo "Nothing to verify." >&2
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exit 2
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fi
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# Message signatures
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printf '%s' 'Found ' >&2
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if (( ${#error_files} == 0 ))
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then
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printf '%s' "$green" "no" "$normal" >&2
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else
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printf '%s' "$red" "${#error_files[@]}" "$normal" >&2
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fi
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if (( ${#error_files[@]} == 1 ))
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then
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echo " bad signature." >&2
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else
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echo " bad signatures." >&2
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fi
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# Message missing
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printf '%s' 'Found ' >&2
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if (( ${#missing_files} == 0 ))
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then
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printf '%s' "$green" "no" "$normal" >&2
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else
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printf '%s' "$red" "${#missing_files[@]}" "$normal" >&2
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fi
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if (( ${#missing_files[@]} == 1 ))
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then
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echo " missing signature." >&2
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else
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echo " missing signatures." >&2
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fi
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# File list
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if (( ${#error_files[@]} > 0 ))
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then
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printf 'BAD signature: %s\n' "${error_files[@]}"
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fi
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if (( ${#missing_files[@]} > 0 ))
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then
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printf 'MISSING signatures: %s\n' "${missing_files[@]}"
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fi
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# Exit codes
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if (( ${#error_files[@]} > 0 ))
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then
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exit 1
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fi
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if (( ${#missing_files[@]} > 0 ))
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then
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exit 3
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fi
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exit 0
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