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1009 lines
27 KiB
1009 lines
27 KiB
4 weeks ago
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#! /bin/bash -eu
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# Script for checking various microcode caveats
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#
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#
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# SPDX-License-Identifier: CC0-1.0
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export LC_ALL=C
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: ${MC_CAVEATS_DATA_DIR=/usr/share/microcode_ctl/ucode_with_caveats}
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: ${FW_DIR=/lib/firmware}
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: ${CFG_DIR=/etc/microcode_ctl/ucode_with_caveats}
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MAX_NESTING_LEVEL=8
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usage() {
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echo 'Usage: check_caveats [-d] [-e] [-k TARGET_KVER] [-c CONFIG]'
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echo ' [-m] [-v]'
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echo
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echo ' -d - enables disclaimer printing mode'
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echo ' -e - check for early microcode load possibility (instead of'
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echo ' late microcode load)'
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echo ' -k - target version to check against, $(uname -r) is used'
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echo ' otherwise'
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echo ' -c - caveat config(s) to check, all configs are checked'
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echo ' otherwise'
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echo ' -m - check that caveats actually apply to the current model'
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echo ' -v - verbose output'
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echo
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echo 'Environment:'
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echo ' MC_CAVEATS_DATA_DIR - directory that contains caveats'
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echo ' configuration data'
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}
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debug() { [ 0 = "$verbose" ] || echo "$*" >&2; }
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# A simplified RPM version comparison that takes into account knowledge about
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# Y- and Z-streams (so it compares versions inside Y-stram or Z-stream if
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# the version against which comparison is performed has appropriate versioning
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# scheme).
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#
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# $1 - kernel version to check
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# $* - list of kernel versions to check against
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check_kver()
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{
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local t_major= t_minor= t_patch= t_y= t_z1= t_z2= t_rest=
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local m_major= m_minor= m_patch= m_y= m_z1= m_z2= m_rest=
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local cmp_type=
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# IFS=.- read -r t_major t_minor t_patch t_y t_z1 t_z2 t_rest <<<"$1"
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# "cannot create temp file for here-document: Read-only file system"
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# that's why we can't have nice things.
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t_major=${1%%.*}
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t_rest=${1#${t_major}}
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t_rest=${t_rest#.}
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t_minor=${t_rest%%.*}
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t_rest=${t_rest#${t_minor}}
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t_rest=${t_rest#.}
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t_patch=${t_rest%%-*}
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t_rest=${t_rest#${t_patch}}
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t_rest=${t_rest#-}
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t_y=${t_rest%%.*}
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t_rest=${t_rest#${t_y}}
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t_rest=${t_rest#.}
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t_z1=${t_rest%%.*}
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t_rest=${t_rest#${t_z1}}
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t_rest=${t_rest#.}
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t_z2=${t_rest%%.*}
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# minor/major/patch/y should be numeric
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[ -n "${t_major##*[!0-9]*}" ] || return 1
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[ -n "${t_minor##*[!0-9]*}" ] || return 1
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[ -n "${t_patch##*[!0-9]*}" ] || return 1
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[ -n "${t_y##*[!0-9]*}" ] || return 1
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# reset z1/z2 to zero if non-numeric
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[ -n "${t_z1##*[!0-9]*}" ] || t_z1=0
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[ -n "${t_z2##*[!0-9]*}" ] || t_z2=0
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while [ 1 -lt "$#" ]; do
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cmp_type=upstream
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shift
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m_major=${1%%.*}
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m_rest=${1#${m_major}}
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m_rest=${m_rest#.}
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m_minor=${m_rest%%.*}
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m_rest=${m_rest#${m_minor}}
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m_rest=${m_rest#.}
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m_patch=${m_rest%%-*}
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m_rest=${m_rest#${m_patch}}
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m_rest=${m_rest#-}
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m_y=${m_rest%%.*}
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m_rest=${m_rest#${m_y}}
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m_rest=${m_rest#.}
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m_z1=${m_rest%%.*}
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m_rest=${m_rest#${m_z1}}
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m_rest=${m_rest#.}
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m_z2=${m_rest%%.*}
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# minor/major/patch should be numeric
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[ -n "${m_major##*[!0-9]*}" ] || continue
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[ -n "${m_minor##*[!0-9]*}" ] || continue
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[ -n "${m_patch##*[!0-9]*}" ] || continue
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# reset z1/z2 to zero if non-numeric
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[ -n "${m_y##*[!0-9]*}" ] && cmp_type=y || m_y=0
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[ -n "${m_z1##*[!0-9]*}" ] && cmp_type=z || m_z1=0
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[ -n "${m_z2##*[!0-9]*}" ] && cmp_type=z || m_z2=0
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# Comparing versions
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case "$cmp_type" in
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upstream)
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[ "$t_major" -ge "$m_major" ] || continue
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[ "$t_minor" -ge "$m_minor" ] || continue
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[ "$t_patch" -ge "$m_patch" ] || continue
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return 0
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;;
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y)
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[ "$t_major" -eq "$m_major" ] || continue
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[ "$t_minor" -eq "$m_minor" ] || continue
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[ "$t_patch" -eq "$m_patch" ] || continue
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[ "$t_y" -ge "$m_y" ] || continue
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return 0
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;;
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z)
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[ "$t_major" -eq "$m_major" ] || continue
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[ "$t_minor" -eq "$m_minor" ] || continue
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[ "$t_patch" -eq "$m_patch" ] || continue
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[ "$t_y" -eq "$m_y" ] || continue
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[ "$t_z1" -ge "$m_z1" ] || continue
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[ "$t_z2" -ge "$m_z2" ] || continue
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return 0
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;;
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esac
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done
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return 1
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}
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# It is needed for SKX[1] for which different product segments
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# are differentiated by a value in the CAPID0 field of PCU registers
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# device[2].
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# [1] https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues/21
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# [2] https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-scalable-spec-update.pdf#page=13
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#
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# $1 - params in config file, space-separated, in key=value form:
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# domain=* - PCI domain, '*' or number
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# bus=* - PCI bus, '*' or number
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# device=* - PCI device, '*' or number
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# function=* - PCI function, '*' or number
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# vid= - PCI vendor ID, empty or number
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# did= - PCI device ID, empty or number
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# offset=0 - offset in configuration space
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# size=4 - field size
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# mask=0 - mask applied to the data read
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# val=0 - comma-separated list of possible values
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# mode=success-any [ success-ail, fail-any, fail-all ] - matching mode:
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# success-any: Returns 0 if there was at least one match, otherwise 1.
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# success-all: Returns 0 if there was at least one device checked and all
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# the checked devices have matches, otherwise 1.
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# fail-any: Returns 1 if there was at least one match, otherwise 0.
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# fail-all: Returns 1 if there was at least one device checked and all
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# the checked devices have matches, otherwise 0.
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# $2 - whether model filter is engaged (if it is not '1', just return the result
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# based on "mode" value that assumes that there were 0 checks/0 matches).
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check_pci_config_val()
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{
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local domain='*' bus='*' device='*' func='*' vid= did=
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local offset=0 size=4 mask=0 val=0 mode=success-any
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local checked=0 matched=0 path=''
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local dev_path dev_vid dev_did dev_val
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local opts="${1:-}"
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local match_model="${2:-0}"
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set -- $1
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while [ "$#" -gt 0 ]; do
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[ "x${1#domain=}" = "x${1}" ] || domain="${1#domain=}"
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[ "x${1#bus=}" = "x${1}" ] || bus="${1#bus=}"
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[ "x${1#device=}" = "x${1}" ] || device="${1#device=}"
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[ "x${1#function=}" = "x${1}" ] || func="${1#function=}"
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[ "x${1#vid=}" = "x${1}" ] || vid="${1#vid=}"
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[ "x${1#did=}" = "x${1}" ] || did="${1#did=}"
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[ "x${1#offset=}" = "x${1}" ] || offset="${1#offset=}"
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[ "x${1#size=}" = "x${1}" ] || size="${1#size=}"
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[ "x${1#mask=}" = "x${1}" ] || mask="${1#mask=}"
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[ "x${1#val=}" = "x${1}" ] || val="${1#val=}"
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[ "x${1#mode=}" = "x${1}" ] || mode="${1#mode=}"
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shift
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done
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path="$domain"
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if [ "x$bus" = 'x*' ]; then
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path="$path:$bus";
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else
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path=$(printf '%s:%02x' "$path" "$bus")
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fi
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if [ "x$device" = 'x*' ]; then
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path="$path:$device";
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else
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path=$(printf '%s:%02x' "$path" "$device")
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fi
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if [ "x$func" = 'x*' ]; then
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path="$path.$func";
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else
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path=$(printf '%s.%01x' "$path" "$func")
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fi
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# Normalise VID, DID
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[ -n "$vid" ] || vid="$(printf '0x%04x' "$vid")"
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[ -n "$did" ] || did="$(printf '0x%04x' "$did")"
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( [ 1 != "$match_model" ] \
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|| /usr/bin/find /sys/bus/pci/devices/ -maxdepth 1 -name "$path" \
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|| : ) | (
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while read -r dev_path; do
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# Filter VID, DID
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if [ -n "$vid" ]; then
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dev_vid=$(/bin/cat "$dev_path/vendor")
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[ "x$vid" = "x$dev_vid" ] || continue
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fi
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if [ -n "$did" ]; then
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dev_did=$(/bin/cat "$dev_path/device")
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[ "x$did" = "x$dev_did" ] || continue
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fi
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checked="$((checked + 1))"
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dev_val="$(/usr/bin/od -j "$offset" -N "$size" -A n \
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-t "u$size" "$dev_path/config")"
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val_rest="${val}"
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while :; do
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cur_val="${val_rest%%,*}"
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if [ "$((dev_val & mask))" = "$((cur_val & mask))" ]
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then
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matched="$((matched + 1))"
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break
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fi
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[ "x${val_rest}" != "x${val_rest#*,}" ] || break
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val_rest="${val_rest#*,}"
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done
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case "$mode" in
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success-any) [ "$matched" -eq 0 ] || { echo 0; exit; } ;;
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success-all) [ "$matched" -eq "$checked" ] || { echo 1; exit; } ;;
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fail-any) [ "$matched" -eq 0 ] || { echo 1; exit; } ;;
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fail-all) [ "$matched" -eq "$checked" ] || { echo 0; exit; } ;;
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*) echo 2; exit;;
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esac
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done
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debug "PCI config value check ($opts): checked $checked," \
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"matched $matched (model check is set to $match_model)"
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case "$mode" in
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success-any) if [ "$matched" -eq 0 ]; then echo 1; else echo 0; fi ;;
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success-all) if [ "$matched" -gt 0 -a "$matched" -eq "$checked" ]; then echo 0; else echo 1; fi ;;
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fail-any) if [ "$matched" -eq 0 ]; then echo 0; else echo 1; fi ;;
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fail-all) if [ "$matched" -gt 0 -a "$matched" -eq "$checked" ]; then echo 1; else echo 0; fi ;;
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*) echo 2; exit;;
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esac
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)
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}
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# It is needed for filtering by BIOS vendor name that is available in DMI data
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#
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# $1 - params in config file, space-separated, in key=value form:
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# key= - DMI data record to check. Can be one of the following: bios_date,
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# bios_vendor, bios_version, board_asset_tag, board_name, board_serial,
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# board_vendor, board_version, chassis_asset_tag, chassis_serial,
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# chassis_type, chassis_vendor, chassis_version, product_family,
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# product_name, product_serial, product_uuid, product_version,
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# sys_vendor.
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# val= - a string to match DMI data against. Can be enclosed in single
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# or double quotes.
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# keyval= - a string of format "KEY(!)?[=:]VAL" (so, one of "KEY=VAL",
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# "KEY!=VAL", "KEY:VAL", "KEY!:VAL") that allows providing
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# a key-value pair in a single parameter. It is possible to provide
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# multiple keyval= parameters. "!" before :/= means negated match.
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# The action supplied in the mode= parameter is executed upon
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# successful (non-)matching of all the keyval pairs (as well
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# as the pair provided in a pair of key= and val= parameters).
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# mode=success-equal [ success-equal, fail-equal ] - matching mode:
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# success-equal: Returns 0 if the all values present in the corresponding
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# files under /sys/devices/virtual/dmi/id/<KEY> are equal
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# (or not equal in case of a keyval= with negated match)
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# to the respective values supplied as the values
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# of the keyval= parameters or the pair of key= vand val=
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# parameters, otherwise 1.
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||
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# fail-equal: Returns 1 if all the values present in DMI files in sysfs
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||
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# match (as described above), otherwise 0.
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# no-model-mode=success [ success, fail ] - return value if model filter
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# is not enabled:
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# success: Return 0.
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||
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# fail: Return 1.
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||
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# $2 - whether model filter is engaged (if it is not '1', just return the result
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||
|
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# based on "no-model-mode" value).
|
||
|
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check_dmi_val()
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||
|
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{
|
||
|
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local key= val= keyval= keyvals= mode='success-equal' nm_mode='success'
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||
|
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local opts="${1:-}" opt= opt_=
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local match_model="${2:-0}"
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||
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|
||
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local valid_keys=" bios_date bios_vendor bios_version board_asset_tag board_name board_serial board_vendor board_version chassis_asset_tag chassis_serial chassis_type chassis_vendor chassis_version product_family product_name product_serial product_uuid product_version sys_vendor "
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||
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local success=1
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||
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|
||
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while [ -n "$opts" ]; do
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opt="${opts%%[ ]*}"
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||
|
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[ -n "${opt}" ] || { opts="${opts#[ ]}"; continue; }
|
||
|
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|
||
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[ "x${opt#key=}" = "x${opt}" ] || key="${opt#key=}"
|
||
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[ "x${opt#mode=}" = "x${opt}" ] || mode="${opt#mode=}"
|
||
|
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[ "x${opt#no-model-mode=}" = "x${opt}" ] || \
|
||
|
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nm_mode="${opt#no-model-mode=}"
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||
|
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|
||
|
|
# Handle possible quoting
|
||
|
|
[ "x${opt#val=}" = "x${opt}" ] || {
|
||
|
|
case "${opt#val=}" in
|
||
|
|
[\']*) opt_="${opts#val=\'}"; val="${opt_%%\'*}"; opt="val='${val}'" ;;
|
||
|
|
[\"]*) opt_="${opts#val=\"}"; val="${opt_%%\"*}"; opt="val=\"${val}\"" ;;
|
||
|
|
*) val="${opt#val=}" ;;
|
||
|
|
esac
|
||
|
|
}
|
||
|
|
[ "x${opt#keyval=}" = "x${opt}" ] || {
|
||
|
|
case "${opt#keyval=}" in
|
||
|
|
[\']*)
|
||
|
|
opt_="${opts#keyval=\'}"
|
||
|
|
keyval="${opt_%%\'*}"
|
||
|
|
opt="keyval='${keyval}'"
|
||
|
|
keyvals="${keyvals}
|
||
|
|
${keyval}"
|
||
|
|
;;
|
||
|
|
[\"]*)
|
||
|
|
opt_="${opts#keyval=\"}"
|
||
|
|
keyval="${opt_%%\"*}"
|
||
|
|
opt="keyval=\"${keyval}\""
|
||
|
|
keyvals="${keyvals}
|
||
|
|
${keyval}"
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
keyvals="${keyvals}
|
||
|
|
${opt#keyval=}"
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
}
|
||
|
|
|
||
|
|
opts="${opts#"${opt}"}"
|
||
|
|
continue
|
||
|
|
done
|
||
|
|
|
||
|
|
[ -z "$key" -a -z "$val" ] || keyvals="${key}=${val}${keyvals}"
|
||
|
|
|
||
|
|
[ -n "x${keyvals}" ] || {
|
||
|
|
debug "Neither key=, val=, nor keyval= parameters were privoded"
|
||
|
|
echo 2
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
[ 1 = "$match_model" ] || {
|
||
|
|
case "$nm_mode" in
|
||
|
|
success) echo 0 ;;
|
||
|
|
fail) echo 1 ;;
|
||
|
|
*)
|
||
|
|
debug "Invalid no-model-mode value: \"${nm_mode}\""
|
||
|
|
echo 2
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
case "$mode" in
|
||
|
|
success-equal|fail-equal) ;;
|
||
|
|
*) debug "Invalid mode value: \"${nm_mode}\""; echo 2; return ;;
|
||
|
|
esac
|
||
|
|
|
||
|
|
printf "%s\n" "${keyvals}" | (
|
||
|
|
while read l; do
|
||
|
|
[ -n "$l" ] || continue
|
||
|
|
key="${l%%[=:]*}"
|
||
|
|
val="${l#${key}[=:]}"
|
||
|
|
|
||
|
|
cmp="="
|
||
|
|
[ "x${key%!}" = "x${key}" ] || {
|
||
|
|
cmp="!="
|
||
|
|
key="${key%!}"
|
||
|
|
}
|
||
|
|
|
||
|
|
# Check key for validity
|
||
|
|
[ "x${valid_keys#* ${key} *}" != "x${valid_keys}" ] || {
|
||
|
|
debug "Invalid \"key\" parameter value: \"${key}\""
|
||
|
|
echo 2
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
[ -r "/sys/devices/virtual/dmi/id/${key}" ] || {
|
||
|
|
debug "Can't access /sys/devices/virtual/dmi/id/${key}"
|
||
|
|
echo 3
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
file_val="$(/bin/cat "/sys/devices/virtual/dmi/id/${key}")"
|
||
|
|
|
||
|
|
[ "x${val}" "${cmp}" "x${file_val}" ] || {
|
||
|
|
case "$mode" in
|
||
|
|
success-equal) echo 1 ;;
|
||
|
|
fail-equal) echo 0 ;;
|
||
|
|
esac
|
||
|
|
|
||
|
|
return
|
||
|
|
}
|
||
|
|
done
|
||
|
|
|
||
|
|
case "$mode" in
|
||
|
|
success-equal) echo 0 ;;
|
||
|
|
fail-equal) echo 1 ;;
|
||
|
|
esac
|
||
|
|
)
|
||
|
|
}
|
||
|
|
|
||
|
|
# check_dependency CURLEVEL DEP_TYPE DEP_NAME OPTS
|
||
|
|
# DEP_TYPE:
|
||
|
|
# required - caveat can be enabled only if dependency is enabled
|
||
|
|
# (is not forcefully disabled and meets caveat conditions)
|
||
|
|
# OPTS:
|
||
|
|
# match-model-mode=same [ on, off, same ] - what mode matching mode is to be used for dependency
|
||
|
|
# skip=skip [ fail, skip, success ]
|
||
|
|
# force-skip=skip [ fail, skip, success ]
|
||
|
|
# nesting-too-deep=fail [ fail, skip, success ]
|
||
|
|
# Return values:
|
||
|
|
# 0 - success
|
||
|
|
# 1 - fail
|
||
|
|
# 2 - skip
|
||
|
|
# 9 - error
|
||
|
|
check_dependency()
|
||
|
|
{
|
||
|
|
local cur_level="$1"
|
||
|
|
local dep_type="$2"
|
||
|
|
local dep_name="$3"
|
||
|
|
local match_model_mode=same old_match_model="${match_model}"
|
||
|
|
local skip=skip
|
||
|
|
local force_skip=skip
|
||
|
|
local nesting_too_deep=fail
|
||
|
|
|
||
|
|
local check="Dependency check for ${dep_type} ${dep_name}"
|
||
|
|
|
||
|
|
set -- ${4:-}
|
||
|
|
while [ "$#" -gt 0 ]; do
|
||
|
|
[ "x${1#match-model-mode=}" = "x${1}" ] || match_model_mode="${1#match-model-mode=}"
|
||
|
|
[ "x${1#skip=}" = "x${1}" ] || skip="${1#skip=}"
|
||
|
|
[ "x${1#force-skip=}" = "x${1}" ] || force_skip="${1#force-skip=}"
|
||
|
|
[ "x${1#nesting-too-deep=}" = "x${1}" ] || nesting_too_deep="${1#nesting-too-deep=}"
|
||
|
|
|
||
|
|
shift
|
||
|
|
done
|
||
|
|
|
||
|
|
case "${dep_type}" in
|
||
|
|
required)
|
||
|
|
[ "x${dep_name%/*}" = "x${dep_name}" ] || {
|
||
|
|
debug "${check} error: dependency name (${dep_name})" \
|
||
|
|
"cannot contain slashes"
|
||
|
|
echo 9
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
[ "${MAX_NESTING_LEVEL}" -ge "$cur_level" ] || {
|
||
|
|
local reason="nesting level is too deep (${cur_level}) and nesting-too-deep='${nesting_too_deep}'"
|
||
|
|
|
||
|
|
case "$nesting_too_deep" in
|
||
|
|
success) debug "${check} succeeded: ${reason}"; echo 0 ;;
|
||
|
|
fail) debug "${check} failed: ${reason}"; echo 1 ;;
|
||
|
|
skip) debug "${check} skipped: ${reason}"; echo 2 ;;
|
||
|
|
*) debug "${check} error: invalid" \
|
||
|
|
"nesting-too-deep mode" \
|
||
|
|
"(${nesting_too_deep})"; echo 9 ;;
|
||
|
|
esac
|
||
|
|
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
case "${match_model_mode}" in
|
||
|
|
same) ;;
|
||
|
|
on) match_model=1 ;;
|
||
|
|
off) match_model=0 ;;
|
||
|
|
*)
|
||
|
|
debug "${check} error: invalid match-model-mode" \
|
||
|
|
"(${match_model_mode})"
|
||
|
|
echo 9
|
||
|
|
return
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
|
||
|
|
local result=0
|
||
|
|
debug "${check}: calling check_caveat '${dep_name}'" \
|
||
|
|
"'$(($cur_level + 1))' match_model=${match_model}"
|
||
|
|
check_caveat "${dep_name}" "$(($cur_level + 1))" > /dev/null || result="$?"
|
||
|
|
|
||
|
|
match_model="${old_match_model}"
|
||
|
|
|
||
|
|
case "${result}" in
|
||
|
|
0) debug "${check} succeeded: result=${result}"; echo "${result}" ;;
|
||
|
|
1) debug "${check} failed: result=${result}"; echo "${result}" ;;
|
||
|
|
2)
|
||
|
|
local reason="result=${result} and skip='${skip}'"
|
||
|
|
|
||
|
|
case "${skip}" in
|
||
|
|
success) debug "${check} succeeded: ${reason}"; echo 0 ;;
|
||
|
|
fail) debug "${check} failed: ${reason}"; echo 1 ;;
|
||
|
|
skip) debug "${check} skipped: ${reason}"; echo 2 ;;
|
||
|
|
*) debug "${check} error: unexpected skip=" \
|
||
|
|
"setting (${skip})"; echo 9 ;;
|
||
|
|
esac
|
||
|
|
;;
|
||
|
|
3)
|
||
|
|
local reason="result=${result} and force_skip='${force_skip}'"
|
||
|
|
|
||
|
|
case "${force_skip}" in
|
||
|
|
success) debug "${check} succeeded: ${reason}"; echo 0 ;;
|
||
|
|
fail) debug "${check} failed: ${reason}"; echo 1 ;;
|
||
|
|
skip) debug "${check} skipped: ${reason}"; echo 2 ;;
|
||
|
|
*) debug "${check} error: unexpected force-skip=" \
|
||
|
|
"setting (${skip})"; echo 9 ;;
|
||
|
|
esac
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
debug "${check} error: unexpected check_caveat result" \
|
||
|
|
"(${result})"; echo 9 ;;
|
||
|
|
esac
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
debug "${check} error: unknown dependency type '${dep_type}'"
|
||
|
|
echo 9
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
}
|
||
|
|
|
||
|
|
# Provides model in format "VENDOR_ID FAMILY-MODEL-STEPPING"
|
||
|
|
#
|
||
|
|
# We check only the first processor as we don't expect non-symmetrical setups
|
||
|
|
# with CPUs with caveats
|
||
|
|
get_model_string()
|
||
|
|
{
|
||
|
|
/usr/bin/printf "%s %02x-%02x-%02x" \
|
||
|
|
$(/bin/sed -rn '1,/^$/{
|
||
|
|
s/^vendor_id[[:space:]]*: (.*)$/\1/p;
|
||
|
|
s/^cpu family[[:space:]]*: (.*)$/\1/p;
|
||
|
|
s/^model[[:space:]]*: (.*)$/\1/p;
|
||
|
|
s/^stepping[[:space:]]*: (.*)$/\1/p;
|
||
|
|
}' /proc/cpuinfo)
|
||
|
|
}
|
||
|
|
|
||
|
|
get_model_name()
|
||
|
|
{
|
||
|
|
/bin/sed -rn '1,/^$/s/^model name[[:space:]]*: (.*)$/\1/p' /proc/cpuinfo
|
||
|
|
}
|
||
|
|
|
||
|
|
get_vendor_id()
|
||
|
|
{
|
||
|
|
/bin/sed -rn '1,/^$/s/^vendor_id[[:space:]]*: (.*)$/\1/p' /proc/cpuinfo
|
||
|
|
}
|
||
|
|
|
||
|
|
get_mc_path()
|
||
|
|
{
|
||
|
|
case "$1" in
|
||
|
|
GenuineIntel)
|
||
|
|
echo "intel-ucode/$2"
|
||
|
|
;;
|
||
|
|
AuthenticAMD)
|
||
|
|
echo "amd-ucode/$2"
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
# We actually only support Intel ucode, but things may break
|
||
|
|
# if nothing is printed (input would be gotten from stdin
|
||
|
|
# otherwise).
|
||
|
|
echo "invalid"
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
}
|
||
|
|
|
||
|
|
get_mc_ver()
|
||
|
|
{
|
||
|
|
/bin/sed -rn '1,/^$/s/^microcode[[:space:]]*: (.*)$/\1/p' /proc/cpuinfo
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
match_model=0
|
||
|
|
configs=
|
||
|
|
kver=$(/bin/uname -r)
|
||
|
|
verbose=0
|
||
|
|
early_check=0
|
||
|
|
print_disclaimers=0
|
||
|
|
|
||
|
|
ret=0
|
||
|
|
|
||
|
|
while getopts "dek:c:mv" opt; do
|
||
|
|
case "${opt}" in
|
||
|
|
d)
|
||
|
|
print_disclaimers=1
|
||
|
|
early_check=2
|
||
|
|
;;
|
||
|
|
e)
|
||
|
|
early_check=1
|
||
|
|
;;
|
||
|
|
k)
|
||
|
|
kver="$OPTARG"
|
||
|
|
;;
|
||
|
|
c)
|
||
|
|
configs="$configs $OPTARG"
|
||
|
|
;;
|
||
|
|
m)
|
||
|
|
match_model=1
|
||
|
|
;;
|
||
|
|
v)
|
||
|
|
verbose=1
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
usage
|
||
|
|
exit 1;
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
: "${configs:=$(find "${MC_CAVEATS_DATA_DIR}" -maxdepth 1 -mindepth 1 -type d -printf "%f\n")}"
|
||
|
|
|
||
|
|
cpu_model=$(get_model_string)
|
||
|
|
cpu_model_name=$(get_model_name)
|
||
|
|
cpu_vendor=$(get_vendor_id)
|
||
|
|
|
||
|
|
ret_paths=""
|
||
|
|
ok_paths=""
|
||
|
|
fail_paths=""
|
||
|
|
|
||
|
|
ret_cfgs=""
|
||
|
|
ok_cfgs=""
|
||
|
|
fail_cfgs=""
|
||
|
|
|
||
|
|
skip_cfgs=""
|
||
|
|
|
||
|
|
if [ 1 -eq "$early_check" ]; then
|
||
|
|
stage="early"
|
||
|
|
else
|
||
|
|
stage="late"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# check_caveat CFG [CHECK_LEVEL]
|
||
|
|
# changes ret_paths, ok_paths, fail_paths, ret_cfgs, ok_cfgs, fail_cfgs,
|
||
|
|
# skip_cfgs if CHECK_LEVEL is set to 0 (default).
|
||
|
|
# CHECK_LEVEL is used for recursive configuration dependency checks,
|
||
|
|
# and indicates nesting level.
|
||
|
|
# Return value:
|
||
|
|
# 0 - check is successful
|
||
|
|
# 1 - check has been failed
|
||
|
|
# 2 - configuration has been skipped
|
||
|
|
# 3 - configuration has been skipped due to presence of an override file
|
||
|
|
check_caveat() {
|
||
|
|
local cfg="$1"
|
||
|
|
local check_level="${2:-0}"
|
||
|
|
local dir="$MC_CAVEATS_DATA_DIR/$cfg"
|
||
|
|
|
||
|
|
[ -r "${dir}/readme" ] || {
|
||
|
|
debug "File 'readme' in ${dir} is not found, skipping"
|
||
|
|
return 2
|
||
|
|
}
|
||
|
|
|
||
|
|
[ -r "${dir}/config" ] || {
|
||
|
|
debug "File 'config' in ${dir} is not found, skipping"
|
||
|
|
return 2
|
||
|
|
}
|
||
|
|
|
||
|
|
local cfg_model=
|
||
|
|
local cfg_vendor=
|
||
|
|
local cfg_path=
|
||
|
|
local cfg_kvers=
|
||
|
|
local cfg_kvers_early=
|
||
|
|
local cfg_mc_min_ver_late=
|
||
|
|
local cfg_disable=
|
||
|
|
local cfg_pci=
|
||
|
|
local cfg_dmi=
|
||
|
|
local cfg_dependency=
|
||
|
|
|
||
|
|
local key
|
||
|
|
local value
|
||
|
|
|
||
|
|
while read -r key value; do
|
||
|
|
case "$key" in
|
||
|
|
model)
|
||
|
|
cfg_model="$value"
|
||
|
|
;;
|
||
|
|
vendor)
|
||
|
|
cfg_vendor="$value"
|
||
|
|
;;
|
||
|
|
path)
|
||
|
|
cfg_path="$cfg_path $value"
|
||
|
|
;;
|
||
|
|
kernel)
|
||
|
|
cfg_kvers="$cfg_kvers $value"
|
||
|
|
;;
|
||
|
|
kernel_early)
|
||
|
|
cfg_kvers_early="$cfg_kvers_early $value"
|
||
|
|
;;
|
||
|
|
mc_min_ver_late)
|
||
|
|
cfg_mc_min_ver_late="$value"
|
||
|
|
;;
|
||
|
|
disable)
|
||
|
|
cfg_disable="$cfg_disable $value "
|
||
|
|
;;
|
||
|
|
pci_config_val)
|
||
|
|
cfg_pci="$cfg_pci
|
||
|
|
$value"
|
||
|
|
;;
|
||
|
|
dmi)
|
||
|
|
cfg_dmi="$cfg_dmi
|
||
|
|
$value"
|
||
|
|
;;
|
||
|
|
dependency)
|
||
|
|
cfg_dependency="$cfg_dependency
|
||
|
|
$value"
|
||
|
|
;;
|
||
|
|
'#'*|'')
|
||
|
|
continue
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
debug "Unknown key '$key' (value '$value') in config" \
|
||
|
|
"'$cfg'"
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done < "${dir}/config"
|
||
|
|
|
||
|
|
debug "${cfg}: model '$cfg_model', path '$cfg_path', kvers '$cfg_kvers'"
|
||
|
|
echo "$cfg_path"
|
||
|
|
|
||
|
|
# Check for override files in the following order:
|
||
|
|
# - disallow early/late specific caveat for specific kernel
|
||
|
|
# - force early/late specific caveat for specific kernel
|
||
|
|
# - disallow specific caveat for specific kernel
|
||
|
|
# - force specific caveat for specific kernel
|
||
|
|
#
|
||
|
|
# - disallow early/late specific caveat for any kernel
|
||
|
|
# - disallow early/late any caveat for specific kernel
|
||
|
|
# - force early/late specific caveat for any kernel
|
||
|
|
# - force early/late any caveat for specific kernel
|
||
|
|
# - disallow specific caveat for any kernel
|
||
|
|
# - disallow any caveat for specific kernel
|
||
|
|
# - force specific caveat for any kernel
|
||
|
|
# - force any caveat for specific kernel
|
||
|
|
#
|
||
|
|
# - disallow early/late everything
|
||
|
|
# - force early/late everyhting
|
||
|
|
# - disallow everything
|
||
|
|
# - force everyhting
|
||
|
|
local ignore_cfg=0
|
||
|
|
local force_cfg=0
|
||
|
|
local override_file=""
|
||
|
|
local overrides="
|
||
|
|
0:$FW_DIR/$kver/disallow-$stage-$cfg
|
||
|
|
1:$FW_DIR/$kver/force-$stage-$cfg
|
||
|
|
0:$FW_DIR/$kver/disallow-$cfg
|
||
|
|
1:$FW_DIR/$kver/force-$cfg
|
||
|
|
0:$FW_DIR/$kver/disallow-$stage
|
||
|
|
0:$CFG_DIR/disallow-$stage-$cfg
|
||
|
|
1:$FW_DIR/$kver/force-$stage
|
||
|
|
1:$CFG_DIR/force-$stage-$cfg
|
||
|
|
0:$FW_DIR/$kver/disallow
|
||
|
|
0:$CFG_DIR/disallow-$cfg
|
||
|
|
1:$FW_DIR/$kver/force
|
||
|
|
1:$CFG_DIR/force-$cfg
|
||
|
|
0:$CFG_DIR/disallow-$stage
|
||
|
|
1:$CFG_DIR/force-$stage
|
||
|
|
0:$CFG_DIR/disallow
|
||
|
|
1:$CFG_DIR/force"
|
||
|
|
local o
|
||
|
|
local o_force
|
||
|
|
local override_file
|
||
|
|
for o in $(echo "$overrides"); do
|
||
|
|
o_force=${o%%:*}
|
||
|
|
override_file=${o#$o_force:}
|
||
|
|
|
||
|
|
[ -e "$override_file" ] || continue
|
||
|
|
|
||
|
|
if [ 0 -eq "$o_force" ]; then
|
||
|
|
ignore_cfg=1
|
||
|
|
else
|
||
|
|
force_cfg=1
|
||
|
|
fi
|
||
|
|
|
||
|
|
break
|
||
|
|
done
|
||
|
|
|
||
|
|
[ 0 -eq "$ignore_cfg" ] || {
|
||
|
|
debug "Configuration \"$cfg\" is ignored due to presence of" \
|
||
|
|
"\"$override_file\"."
|
||
|
|
return 3
|
||
|
|
}
|
||
|
|
|
||
|
|
# Check model if model filter is enabled
|
||
|
|
if [ 1 -eq "$match_model" -a -n "$cfg_model" ]; then
|
||
|
|
[ "x$cpu_model" = "x$cfg_model" ] || {
|
||
|
|
debug "Current CPU model '$cpu_model' doesn't" \
|
||
|
|
"match configuration CPU model '$cfg_model'," \
|
||
|
|
"skipping"
|
||
|
|
return 2
|
||
|
|
}
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Check paths if model filter is enabled
|
||
|
|
local cpu_mc_path
|
||
|
|
local cfg_mc_present
|
||
|
|
if [ 1 -eq "$match_model" -a -n "$cfg_path" ]; then
|
||
|
|
cpu_mc_path="$MC_CAVEATS_DATA_DIR/$cfg/$(get_mc_path \
|
||
|
|
"$cpu_vendor" "${cpu_model#* }")"
|
||
|
|
cfg_mc_present=0
|
||
|
|
|
||
|
|
for p in $(printf "%s" "$cfg_path"); do
|
||
|
|
/usr/bin/find "$MC_CAVEATS_DATA_DIR/$cfg" \
|
||
|
|
-path "$MC_CAVEATS_DATA_DIR/$cfg/$p" -print0 \
|
||
|
|
| /bin/grep -zFxc "$cpu_mc_path" > /dev/null \
|
||
|
|
|| continue
|
||
|
|
|
||
|
|
cfg_mc_present=1
|
||
|
|
break
|
||
|
|
done
|
||
|
|
|
||
|
|
[ 1 = "$cfg_mc_present" ] || {
|
||
|
|
debug "No matching microcode files in '$cfg_path'" \
|
||
|
|
"for CPU model '$cpu_model', skipping"
|
||
|
|
return 2
|
||
|
|
}
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Check vendor if model filter is enabled
|
||
|
|
if [ 1 -eq "$match_model" -a -n "$cfg_vendor" ]; then
|
||
|
|
[ "x$cpu_vendor" = "x$cfg_vendor" ] || {
|
||
|
|
debug "Current CPU vendor '$cpu_vendor' doesn't" \
|
||
|
|
"match configuration CPU vendor '$cfg_vendor'," \
|
||
|
|
"skipping"
|
||
|
|
return 2
|
||
|
|
}
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Has to be performed before dependency checks
|
||
|
|
[ 0 -eq "$force_cfg" ] || {
|
||
|
|
debug "Checks for configuration \"$cfg\" are ignored due to" \
|
||
|
|
"presence of \"$override_file\"."
|
||
|
|
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
# Check dependencies
|
||
|
|
# It has to be performed here (before adding configuration
|
||
|
|
# to $ret_cfgs/$ret_paths) since it may be skipped.
|
||
|
|
if [ -n "$cfg_dependency" ]; then
|
||
|
|
dep_line="$(printf "%s\n" "$cfg_dependency" | \
|
||
|
|
while read -r dep_type dep_name dep_opts
|
||
|
|
do
|
||
|
|
[ -n "$dep_type" ] || continue
|
||
|
|
dep_res=$(check_dependency "$check_level" \
|
||
|
|
"$dep_type" \
|
||
|
|
"$dep_name" \
|
||
|
|
"$dep_opts")
|
||
|
|
[ 0 != "$dep_res" ] || continue
|
||
|
|
echo "$dep_res $dep_type $dep_name $dep_opts"
|
||
|
|
break
|
||
|
|
done
|
||
|
|
echo "0 ")"
|
||
|
|
|
||
|
|
case "${dep_line%% *}" in
|
||
|
|
0) ;;
|
||
|
|
2)
|
||
|
|
debug "Dependency check '${dep_line#* }'" \
|
||
|
|
"induced configuration skip"
|
||
|
|
return 2
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
debug "Dependency check '${dep_line#* }'" \
|
||
|
|
"failed (with return code ${dep_line%% *})"
|
||
|
|
return 1
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Check configuration files
|
||
|
|
|
||
|
|
[ "x${cfg_disable%%* $stage *}" = "x$cfg_disable" ] || {
|
||
|
|
debug "${cfg}: caveat is disabled in configuration"
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
|
||
|
|
# Check late load kernel version
|
||
|
|
if [ 1 -ne "$early_check" -a -n "$cfg_kvers" ]; then
|
||
|
|
check_kver "$kver" $cfg_kvers || {
|
||
|
|
debug "${cfg}: late load kernel version check for" \
|
||
|
|
" '$kver' against '$cfg_kvers' failed"
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Check early load kernel version
|
||
|
|
if [ 0 -ne "$early_check" -a -n "$cfg_kvers_early" ]; then
|
||
|
|
check_kver "$kver" $cfg_kvers_early || {
|
||
|
|
debug "${cfg}: early load kernel version check for" \
|
||
|
|
"'$kver' against '$cfg_kvers_early' failed"
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Check current microcode version for the late update
|
||
|
|
if [ -n "$cfg_mc_min_ver_late" -a 1 -ne "$early_check" -a \
|
||
|
|
"x$cpu_model" = "x$cfg_model" ]; then
|
||
|
|
cpu_mc_ver="$(get_mc_ver)"
|
||
|
|
|
||
|
|
[ 1 -eq $((cpu_mc_ver >= cfg_mc_min_ver_late)) ] || {
|
||
|
|
debug "${cfg}: CPU microcode version $cpu_mc_ver" \
|
||
|
|
"failed check (should be at least" \
|
||
|
|
"${cfg_mc_min_ver_late})"
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Check PCI devices if model filter is enabled
|
||
|
|
# Note that the model filter check is done inside check_pci_config_val
|
||
|
|
# based on the 'mode=' parameter.
|
||
|
|
if [ -n "$cfg_pci" ]; then
|
||
|
|
pci_line="$(printf "%s\n" "$cfg_pci" | while read -r pci_line; do
|
||
|
|
[ -n "$pci_line" ] || continue
|
||
|
|
pci_res=$(check_pci_config_val "$pci_line" \
|
||
|
|
"$match_model")
|
||
|
|
[ 0 != "$pci_res" ] || continue
|
||
|
|
echo "$pci_res $pci_line"
|
||
|
|
break
|
||
|
|
done
|
||
|
|
echo "0 ")"
|
||
|
|
|
||
|
|
[ -z "${pci_line#* }" ] || {
|
||
|
|
debug "PCI configuration word check '${pci_line#* }'" \
|
||
|
|
"failed (with return code ${pci_line%% *})"
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Check DMI data if model filter is enabled
|
||
|
|
# Note that the model filter check is done inside check_dmi_val
|
||
|
|
# (which returns the value of 'no-model-mode=' parameter
|
||
|
|
# if it is disenaged).
|
||
|
|
if [ -n "$cfg_dmi" ]; then
|
||
|
|
dmi_line="$(printf "%s\n" "$cfg_dmi" | while read -r dmi_line
|
||
|
|
do
|
||
|
|
[ -n "$dmi_line" ] || continue
|
||
|
|
dmi_res=$(check_dmi_val "$dmi_line" \
|
||
|
|
"$match_model")
|
||
|
|
[ 0 != "$dmi_res" ] || continue
|
||
|
|
echo "$dmi_res $dmi_line"
|
||
|
|
break
|
||
|
|
done
|
||
|
|
echo "0 ")"
|
||
|
|
|
||
|
|
[ -z "${dmi_line#* }" ] || {
|
||
|
|
debug "DMI data check '${dmi_line#* }'" \
|
||
|
|
"failed (with return code ${dmi_line%% *})"
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
fi
|
||
|
|
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
for cfg in $(echo "${configs}"); do
|
||
|
|
if cfg_path=$(check_caveat "$cfg"; exit "$?")
|
||
|
|
then
|
||
|
|
ret_cfgs="$ret_cfgs $cfg"
|
||
|
|
ret_paths="$ret_paths $cfg_path"
|
||
|
|
ok_cfgs="$ok_cfgs $cfg"
|
||
|
|
ok_paths="$ok_paths $cfg_path"
|
||
|
|
else
|
||
|
|
case "$?" in
|
||
|
|
1)
|
||
|
|
ret=1
|
||
|
|
|
||
|
|
ret_cfgs="$ret_cfgs $cfg"
|
||
|
|
ret_paths="$ret_paths $cfg_path"
|
||
|
|
fail_cfgs="$fail_cfgs $cfg"
|
||
|
|
fail_paths="$fail_paths $cfg_path"
|
||
|
|
|
||
|
|
[ 0 -eq "$print_disclaimers" ] \
|
||
|
|
|| [ ! -e "${MC_CAVEATS_DATA_DIR}/${cfg}/disclaimer" ] \
|
||
|
|
|| /bin/cat "${MC_CAVEATS_DATA_DIR}/${cfg}/disclaimer"
|
||
|
|
;;
|
||
|
|
2|3)
|
||
|
|
skip_cfgs="$skip_cfgs $cfg";
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
debug "Unexpected check_caveat return code '$?'" \
|
||
|
|
"for config '$cfg'"
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
|
||
|
|
[ 0 -eq "$print_disclaimers" ] || exit 0
|
||
|
|
|
||
|
|
echo "cfgs$ret_cfgs"
|
||
|
|
echo "skip_cfgs$skip_cfgs"
|
||
|
|
echo "paths$ret_paths"
|
||
|
|
echo "ok_cfgs$ok_cfgs"
|
||
|
|
echo "ok_paths$ok_paths"
|
||
|
|
echo "fail_cfgs$fail_cfgs"
|
||
|
|
echo "fail_paths$fail_paths"
|
||
|
|
|
||
|
|
exit $ret
|