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patch-fbc.sh
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patch-fbc.sh
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#!/bin/bash
# halt on any error for safety and proper pipe handling
set -euo pipefail ; # <- this semicolon and comment make options apply
# even when script is corrupt by CRLF line terminators (issue #75)
# empty line must follow this comment for immediate fail with CRLF newlines
backup_path="/opt/nvidia/libnvidia-fbc-backup"
silent_flag=''
manual_driver_version=''
flatpak_flag=''
backup_suffix=''
print_usage() { printf '
SYNOPSIS
patch-fbc.sh [-s] [-r|-h|-c VERSION|-l|-f]
DESCRIPTION
The patch for Nvidia drivers to allow FBC on consumer devices
-s Silent mode (No output)
-r Rollback to original (Restore lib from backup)
-h Print this help message
-c VERSION Check if version VERSION supported by this patch.
Returns true exit code (0) if version is supported.
-l List supported driver versions
-d VERSION Use VERSION driver version when looking for libraries
instead of using nvidia-smi to detect it.
-f Enable support for Flatpak NVIDIA drivers.
'
}
# shellcheck disable=SC2209
opmode="patch"
while getopts 'rshc:ld:f' flag; do
case "${flag}" in
r) opmode="${opmode}rollback" ;;
s) silent_flag='true' ;;
h) opmode="${opmode}help" ;;
c) opmode="${opmode}checkversion" ; checked_version="$OPTARG" ;;
l) opmode="${opmode}listversions" ;;
d) manual_driver_version="$OPTARG" ;;
f) flatpak_flag='true' ;;
*) echo "Incorrect option specified in command line" ; exit 2 ;;
esac
done
if [[ $silent_flag ]]; then
exec 1> /dev/null
fi
if [[ $flatpak_flag ]]; then
backup_suffix='.flatpak'
echo "WARNING: Flatpak flag enabled (-f), modifying ONLY the Flatpak driver."
fi
declare -A patch_list=(
["440.26"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.31"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.33.01"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.36"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.43.01"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.44"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.48.02"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.58.01"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.58.02"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.59"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.64"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.64.00"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.66.02"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.66.03"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.66.04"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.66.08"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.66.09"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.66.11"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.66.12"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.66.14"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.66.15"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.66.17"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.82"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.95.01"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.100"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["440.118.02"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["450.36.06"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["450.51"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["450.51.05"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["450.51.06"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["450.56.01"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["450.56.02"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["450.56.06"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["450.56.11"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["450.57"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["450.66"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["450.80.02"]='s/\x85\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/\x31\xc0\x89\xc3\x0f\x85\xa9\xfa\xff\xff/'
["455.23.04"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.23.05"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.26.01"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.26.02"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.28"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.32.00"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.38"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.45.01"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.46.01"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.46.02"]='s/\x83\xf8\x01\x0f\x84\x83/\x83\xf8\x69\x0f\x84\x83/'
["455.46.04"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.50.02"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.50.03"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.50.04"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.50.05"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.50.07"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["455.50.10"]='s/\x83\xf8\x01\x0f\x84\x85/\x83\xf8\x69\x0f\x84\x85/'
["460.27.04"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["460.32.03"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["460.39"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["460.56"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["460.67"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["460.73.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["460.80"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["460.84"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["460.91.03"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["465.19.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["465.24.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["465.27"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["465.31"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.42.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.57.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.62.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.62.05"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.63.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.74"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.82.00"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.82.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.86"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.94"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.103.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.129.06"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.141.03"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.161.03"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.182.03"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.199.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["470.223.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["495.29.05"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["495.44"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["495.46"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["510.39.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["510.47.03"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["510.54"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["510.60.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["510.68.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["510.73.05"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["510.73.08"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["510.85.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["510.108.03"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["515.43.04"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["515.48.07"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["515.57"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["515.65.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["515.76"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["515.86.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["515.105.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["520.56.06"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["520.61.05"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["525.60.11"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["525.60.13"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["525.78.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["525.85.05"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["525.85.12"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["525.89.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["525.105.17"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["525.116.03"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["525.116.04"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["525.125.06"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["525.147.05"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["530.30.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["530.41.03"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["535.43.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["535.54.03"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x00\x72\x08\x48/'
["535.86.05"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["535.86.10"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["535.98"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["535.104.05"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["535.104.12"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["535.113.01"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["535.129.03"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["535.146.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["535.154.05"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["545.23.06"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["545.23.08"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["545.29.02"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
["545.29.06"]='s/\x83\xfe\x01\x73\x08\x48/\x83\xfe\x01\x90\x90\x48/'
)
check_version_supported () {
local ver="$1"
[[ "${patch_list[$ver]+isset}" ]]
}
get_flatpak_driver_path () {
# Flatpak's package versioning replaces '.' by '-'
version="$(echo "$1" | tr '.' '-')"
# Attempts to patch system flatpak
if path=$(flatpak info --show-location "org.freedesktop.Platform.GL.nvidia-${version}" 2>/dev/null); then
echo "$path/files/lib"
# If it isn't found will login as the user that envoked sudo & patch this version
elif path=$(su -c - ${SUDO_USER} 'flatpak info --show-location "org.freedesktop.Platform.GL.nvidia-'${version}'"'); then
echo "$path/files/lib"
fi
}
get_supported_versions () {
for drv in "${!patch_list[@]}"; do
echo "$drv"
done | sort -t. -n
return 0
}
patch_common () {
NVIDIA_SMI="$(command -v nvidia-smi || true)"
if [[ ! "$NVIDIA_SMI" ]] ; then
echo 'nvidia-smi utility not found. Probably driver is not installed.'
exit 1
fi
if [[ "$manual_driver_version" ]]; then
driver_version="$manual_driver_version"
echo "Using manually entered nvidia driver version: $driver_version"
else
cmd="$NVIDIA_SMI --query-gpu=driver_version --format=csv,noheader,nounits"
driver_versions_list=$($cmd) || (
ret_code=$?
echo "Can not detect nvidia driver version."
echo "CMD: \"$cmd\""
echo "Result: \"$driver_versions_list\""
echo "nvidia-smi retcode: $ret_code"
exit 1
)
driver_version=$(echo "$driver_versions_list" | head -n 1)
echo "Detected nvidia driver version: $driver_version"
fi
if ! check_version_supported "$driver_version" ; then
echo "Patch for this ($driver_version) nvidia driver not found."
echo "Patch is available for versions: "
get_supported_versions
exit 1
fi
patch="${patch_list[$driver_version]}"
object='libnvidia-fbc.so'
if [[ $flatpak_flag ]]; then
driver_dir=$(get_flatpak_driver_path "$driver_version")
if [ -z "$driver_dir" ]; then
echo "ERROR: Flatpak package for driver $driver_version does not appear to be installed."
echo "Try rebooting your computer and/or running 'flatpak update'."
exit 1
fi
# return early because the code below is out of scope for the Flatpak driver
return 0
fi
declare -a driver_locations=(
'/usr/lib/x86_64-linux-gnu'
'/usr/lib/x86_64-linux-gnu/nvidia/current/'
'/usr/lib/x86_64-linux-gnu/nvidia/tesla/'
"/usr/lib/x86_64-linux-gnu/nvidia/tesla-${driver_version%%.*}/"
'/usr/lib64'
'/usr/lib'
"/usr/lib/nvidia-${driver_version%%.*}"
)
dir_found=''
for driver_dir in "${driver_locations[@]}" ; do
if [[ -e "$driver_dir/$object.$driver_version" ]]; then
dir_found='true'
break
fi
done
[[ "$dir_found" ]] || { echo "ERROR: cannot detect driver directory"; exit 1; }
}
ensure_bytes_are_valid () {
driver_file="$driver_dir/$object.$driver_version"
original_bytes=$(awk -F / '$2 { print $2 }' <<< "$patch")
patched_bytes=$(awk -F / '$3 { print $3 }' <<< "$patch")
if LC_ALL=C grep -qaP "$original_bytes" "$driver_file"; then
return 0 # file is ready to be patched
fi
if LC_ALL=C grep -qaP "$patched_bytes" "$driver_file"; then
return 0 # file is likely patched already
fi
echo "Error: Could not find bytes '$original_bytes' to patch in '$driver_file'."
exit 1
}
rollback () {
patch_common
if [[ -f "$backup_path/$object.$driver_version$backup_suffix" ]]; then
cp -p "$backup_path/$object.$driver_version$backup_suffix" \
"$driver_dir/$object.$driver_version"
echo "Restore from backup $object.$driver_version$backup_suffix"
else
echo "Backup not found. Try to patch first."
exit 1
fi
}
patch () {
patch_common
ensure_bytes_are_valid
if [[ -f "$backup_path/$object.$driver_version$backup_suffix" ]]; then
bkp_hash="$(sha1sum "$backup_path/$object.$driver_version$backup_suffix" | cut -f1 -d\ )"
drv_hash="$(sha1sum "$driver_dir/$object.$driver_version" | cut -f1 -d\ )"
if [[ "$bkp_hash" != "$drv_hash" ]] ; then
echo "Backup exists and driver file differ from backup. Skipping patch."
return 0
fi
else
echo "Attention! Backup not found. Copying current $object to backup."
mkdir -p "$backup_path"
cp -p "$driver_dir/$object.$driver_version" \
"$backup_path/$object.$driver_version$backup_suffix"
fi
sha1sum "$backup_path/$object.$driver_version$backup_suffix"
sed "$patch" "$backup_path/$object.$driver_version$backup_suffix" > \
"${PATCH_OUTPUT_DIR-$driver_dir}/$object.$driver_version"
sha1sum "${PATCH_OUTPUT_DIR-$driver_dir}/$object.$driver_version"
ldconfig
echo "Patched!"
}
query_version_support () {
if check_version_supported "$checked_version" ; then
echo "SUPPORTED"
exit 0
else
echo "NOT SUPPORTED"
exit 1
fi
}
list_supported_versions () {
get_supported_versions
}
case "${opmode}" in
patch) patch ;;
patchrollback) rollback ;;
patchhelp) print_usage ; exit 2 ;;
patchcheckversion) query_version_support ;;
patchlistversions) list_supported_versions ;;
*) echo "Incorrect combination of flags. Use option -h to get help."
exit 2 ;;
esac