Andrew Geissler | cc58928 | 2020-09-18 13:34:40 -0500 | [diff] [blame] | 1 | #!/bin/sh |
| 2 | |
| 3 | dmverity_enabled() { |
| 4 | return 0 |
| 5 | } |
| 6 | |
| 7 | dmverity_run() { |
| 8 | DATA_SIZE="__not_set__" |
| 9 | ROOT_HASH="__not_set__" |
| 10 | |
| 11 | . /usr/share/misc/dm-verity.env |
| 12 | |
Andrew Geissler | d1d22e6 | 2020-10-16 10:14:32 -0500 | [diff] [blame^] | 13 | C=0 |
| 14 | delay=${bootparam_rootdelay:-1} |
| 15 | timeout=${bootparam_roottimeout:-5} |
| 16 | RDEV="$(realpath /dev/disk/by-partuuid/${bootparam_root#PARTUUID=})" |
| 17 | while [ ! -b "${RDEV}" ]; do |
| 18 | if [ $(( $C * $delay )) -gt $timeout ]; then |
| 19 | fatal "Root device resolution failed" |
| 20 | exit 1 |
| 21 | fi |
Andrew Geissler | cc58928 | 2020-09-18 13:34:40 -0500 | [diff] [blame] | 22 | |
Andrew Geissler | d1d22e6 | 2020-10-16 10:14:32 -0500 | [diff] [blame^] | 23 | case "${bootparam_root}" in |
| 24 | ID=*) |
| 25 | RDEV="$(realpath /dev/disk/by-id/${bootparam_root#ID=})" |
| 26 | ;; |
| 27 | LABEL=*) |
| 28 | RDEV="$(realpath /dev/disk/by-label/${bootparam_root#LABEL=})" |
| 29 | ;; |
| 30 | PARTLABEL=*) |
| 31 | RDEV="$(realpath /dev/disk/by-partlabel/${bootparam_root#PARTLABEL=})" |
| 32 | ;; |
| 33 | PARTUUID=*) |
| 34 | RDEV="$(realpath /dev/disk/by-partuuid/${bootparam_root#PARTUUID=})" |
| 35 | ;; |
| 36 | PATH=*) |
| 37 | RDEV="$(realpath /dev/disk/by-path/${bootparam_root#PATH=})" |
| 38 | ;; |
| 39 | UUID=*) |
| 40 | RDEV="$(realpath /dev/disk/by-uuid/${bootparam_root#UUID=})" |
| 41 | ;; |
| 42 | *) |
| 43 | RDEV="${bootparam_root}" |
| 44 | esac |
| 45 | debug "Sleeping for $delay second(s) to wait root to settle..." |
| 46 | sleep $delay |
| 47 | C=$(( $C + 1 )) |
| 48 | |
| 49 | done |
Andrew Geissler | cc58928 | 2020-09-18 13:34:40 -0500 | [diff] [blame] | 50 | |
| 51 | veritysetup \ |
| 52 | --data-block-size=1024 \ |
| 53 | --hash-offset=${DATA_SIZE} \ |
| 54 | create rootfs \ |
| 55 | ${RDEV} \ |
| 56 | ${RDEV} \ |
| 57 | ${ROOT_HASH} |
| 58 | |
| 59 | mount \ |
| 60 | -o ro \ |
| 61 | /dev/mapper/rootfs \ |
| 62 | ${ROOTFS_DIR} || exit 2 |
| 63 | } |