future-install-scripts/common
Dave Reisner 7c53cd416b common: ignore errors from efivarfs mount failures
The existence of /sys/firmware/efi/efivars only indicates that we've
booted the kernel in EFI mode. It does not guarantee that the same
kernel has support for efivarfs. Since this isn't critical, don't fail
the whole api mount.
2013-11-29 14:08:37 -05:00

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# generated from util-linux source: libmount/src/utils.c
declare -A pseudofs_types=([anon_inodefs]=1
[autofs]=1
[bdev]=1
[binfmt_misc]=1
[cgroup]=1
[configfs]=1
[cpuset]=1
[debugfs]=1
[devfs]=1
[devpts]=1
[devtmpfs]=1
[dlmfs]=1
[fuse.gvfs-fuse-daemon]=1
[fusectl]=1
[hugetlbfs]=1
[mqueue]=1
[nfsd]=1
[none]=1
[pipefs]=1
[proc]=1
[pstore]=1
[ramfs]=1
[rootfs]=1
[rpc_pipefs]=1
[securityfs]=1
[sockfs]=1
[spufs]=1
[sysfs]=1
[tmpfs]=1)
# generated from: pkgfile -vbr '/fsck\..+' | awk -F. '{ print $NF }' | sort
declare -A fsck_types=([cramfs]=1
[exfat]=1
[ext2]=1
[ext3]=1
[ext4]=1
[ext4dev]=1
[jfs]=1
[minix]=1
[msdos]=1
[reiserfs]=1
[vfat]=1
[xfs]=1)
out() { printf "$1 $2\n" "${@:3}"; }
error() { out "==> ERROR:" "$@"; } >&2
msg() { out "==>" "$@"; }
msg2() { out " ->" "$@";}
die() { error "$@"; exit 1; }
ignore_error() {
"$@" 2>/dev/null
return 0
}
in_array() {
local i
for i in "${@:2}"; do
[[ $1 = "$i" ]] && return
done
}
track_mount() {
if [[ -z $CHROOT_ACTIVE_MOUNTS ]]; then
CHROOT_ACTIVE_MOUNTS=()
trap 'chroot_umount' EXIT
fi
mount "$@" && CHROOT_ACTIVE_MOUNTS=("$2" "${CHROOT_ACTIVE_MOUNTS[@]}")
}
mount_conditionally() {
local cond=$1; shift
if eval "$cond"; then
track_mount "$@"
fi
}
api_fs_mount() {
mount_conditionally "! mountpoint -q '$1'" "$1" "$1" --bind &&
track_mount proc "$1/proc" -t proc -o nosuid,noexec,nodev &&
track_mount sys "$1/sys" -t sysfs -o nosuid,noexec,nodev,ro &&
ignore_error mount_conditionally "[[ -d '$1/sys/firmware/efi/efivars' ]]" \
efivarfs "$1/sys/firmware/efi/efivars" -t efivarfs -o nosuid,noexec,nodev &&
track_mount udev "$1/dev" -t devtmpfs -o mode=0755,nosuid &&
track_mount devpts "$1/dev/pts" -t devpts -o mode=0620,gid=5,nosuid,noexec &&
track_mount shm "$1/dev/shm" -t tmpfs -o mode=1777,nosuid,nodev &&
track_mount run "$1/run" -t tmpfs -o nosuid,nodev,mode=0755 &&
track_mount tmp "$1/tmp" -t tmpfs -o mode=1777,strictatime,nodev,nosuid
}
chroot_umount() {
umount "${CHROOT_ACTIVE_MOUNTS[@]}"
}
valid_number_of_base() {
local base=$1 len=${#2} i=
for (( i = 0; i < len; i++ )); do
(( (${2:i:1} & ~(base - 1)) == 0 )) || return
done
}
mangle() {
local i= chr= out=
unset {a..f} {A..F}
for (( i = 0; i < ${#1}; i++ )); do
chr=${1:i:1}
case $chr in
[[:space:]\\])
printf -v chr '%03o' "'$chr"
out+=\\
;;&
# fallthrough
*)
out+=$chr
;;
esac
done
printf '%s' "$out"
}
unmangle() {
local i= chr= out= len=$(( ${#1} - 4 ))
unset {a..f} {A..F}
for (( i = 0; i < len; i++ )); do
chr=${1:i:1}
case $chr in
\\)
if valid_number_of_base 8 "${1:i+1:3}" ||
valid_number_of_base 16 "${1:i+1:3}"; then
printf -v chr '%b' "${1:i:4}"
(( i += 3 ))
fi
;;&
# fallthrough
*)
out+=$chr
esac
done
printf '%s' "$out${1:i}"
}
dm_name_for_devnode() {
read dm_name <"/sys/class/block/${1#/dev/}/dm/name"
if [[ $dm_name ]]; then
printf '/dev/mapper/%s' "$dm_name"
else
# don't leave the caller hanging, just print the original name
# along with the failure.
print '%s' "$1"
error 'Failed to resolve device mapper name for: %s' "$1"
fi
}
fstype_is_pseudofs() {
(( pseudofs_types["$1"] ))
}
fstype_has_fsck() {
(( fsck_types["$1"] ))
}