mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-28 17:08:18 +01:00
110 lines
3.0 KiB
Bash
Executable File
110 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
#
|
|
# rc functions library for CLOVER
|
|
#
|
|
# © JrCs 2013-2015
|
|
|
|
|
|
##################### VARIABLES #####################
|
|
|
|
# Export variables that can be used in custom scripts
|
|
export DEBUG=${DEBUG:-0}
|
|
|
|
declare -r CLOVER_LOG_LOCATION=/Library/Logs/CloverEFI
|
|
export CLOVER_LOG_LOCATION
|
|
|
|
##################### FUNCTIONS #####################
|
|
|
|
#
|
|
# get value of a nvram key
|
|
#
|
|
GetNVRamKey() {
|
|
# Arguments:
|
|
# $1: nvram key to search (case insensitive)
|
|
# Return:
|
|
# return the value of the nvram key
|
|
# exit code is != 0 if the nvram key wasn't found
|
|
local keyvalue exitCode
|
|
local IFS=$(printf "\t")
|
|
keyvalue=( $(/usr/sbin/nvram -p | /usr/bin/grep -i "^${1}\t*" 2>/dev/null) )
|
|
exitCode=$?
|
|
[[ $exitCode -eq 0 ]] && echo "${keyvalue[1]}"
|
|
return $exitCode
|
|
}
|
|
export -f GetNVRamKey
|
|
|
|
#
|
|
# get value of a boot flag
|
|
#
|
|
GetBootFlags() {
|
|
# Arguments:
|
|
# $1: boot flag key to search (case insensitive)
|
|
# Return:
|
|
# return the value of the boot flag
|
|
# exit code is != 0 if the boot flag wasn't found
|
|
local searchKey="$1"
|
|
local exitCode=1
|
|
local bootFlagValue=
|
|
|
|
local bootFlags=$(GetNVRamKey 'boot-args')
|
|
|
|
# Turn case-insensitive matching temporarily on, if necessary.
|
|
local nocasematchWasOff=0
|
|
shopt nocasematch >/dev/null || nocasematchWasOff=1
|
|
(( nocasematchWasOff )) && shopt -s nocasematch
|
|
|
|
for bootFlag in $bootFlags ; do
|
|
#
|
|
# Split the key and value
|
|
#
|
|
local bootFlagKey="${bootFlag%%=*}"
|
|
if [[ "$bootFlagKey" == "$searchKey" ]]; then
|
|
bootFlagValue=
|
|
[[ $bootFlag == *=* ]] && bootFlagValue="${bootFlag#*=}"
|
|
exitCode=0
|
|
break;
|
|
fi
|
|
done
|
|
|
|
# Restore state of 'nocasematch' option, if necessary.
|
|
(( nocasematchWasOff )) && shopt -u nocasematch
|
|
|
|
echo "$bootFlagValue"
|
|
return $exitCode
|
|
}
|
|
export -f GetBootFlags
|
|
|
|
GetDiskGUIDFromDevice() {
|
|
local arg="$1"
|
|
# keep only the device name (remove /dev/ and partition (aka s1))
|
|
local device=$(echo "$arg" | sed -E 's@^.*/?(disk[0-9]*).*@\1@')
|
|
# get the GPT table
|
|
gpt_table=$(dd if=/dev/$device iseek=512 count=72 bs=1 2>/dev/null | xxd -u -ps -c 72)
|
|
# Check if it is a GPT partition table (EFI PART signature)
|
|
[[ ! "${gpt_table:0:16}" == 4546492050415254 ]] && return 1
|
|
printf "%s-%s-%s-%s-%s\n" \
|
|
"${gpt_table:118:2}${gpt_table:116:2}${gpt_table:114:2}${gpt_table:112:2}" \
|
|
"${gpt_table:122:2}${gpt_table:120:2}" \
|
|
"${gpt_table:126:2}${gpt_table:124:2}" \
|
|
"${gpt_table:128:4}" "${gpt_table:132:16}"
|
|
}
|
|
export -f GetDiskGUIDFromDevice
|
|
|
|
####################### MAIN #######################
|
|
|
|
#
|
|
# Ensure log directory exists
|
|
#
|
|
[[ ! -d "${CLOVER_LOG_LOCATION}" ]] && mkdir -p "${CLOVER_LOG_LOCATION}"
|
|
|
|
|
|
|
|
# Local Variables: #
|
|
# mode: ksh #
|
|
# tab-width: 4 #
|
|
# indent-tabs-mode: nil #
|
|
# End: #
|
|
#
|
|
# vi: set expandtab ts=4 sw=4 sts=4: #
|