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__" |
Patrick Williams | 93c203f | 2021-10-06 16:15:23 -0500 | [diff] [blame^] | 9 | DATA_BLOCK_SIZE="__not_set__" |
Andrew Geissler | cc58928 | 2020-09-18 13:34:40 -0500 | [diff] [blame] | 10 | ROOT_HASH="__not_set__" |
| 11 | |
| 12 | . /usr/share/misc/dm-verity.env |
| 13 | |
Andrew Geissler | d1d22e6 | 2020-10-16 10:14:32 -0500 | [diff] [blame] | 14 | C=0 |
| 15 | delay=${bootparam_rootdelay:-1} |
| 16 | timeout=${bootparam_roottimeout:-5} |
| 17 | RDEV="$(realpath /dev/disk/by-partuuid/${bootparam_root#PARTUUID=})" |
| 18 | while [ ! -b "${RDEV}" ]; do |
| 19 | if [ $(( $C * $delay )) -gt $timeout ]; then |
| 20 | fatal "Root device resolution failed" |
| 21 | exit 1 |
| 22 | fi |
Andrew Geissler | cc58928 | 2020-09-18 13:34:40 -0500 | [diff] [blame] | 23 | |
Andrew Geissler | d1d22e6 | 2020-10-16 10:14:32 -0500 | [diff] [blame] | 24 | case "${bootparam_root}" in |
| 25 | ID=*) |
| 26 | RDEV="$(realpath /dev/disk/by-id/${bootparam_root#ID=})" |
| 27 | ;; |
| 28 | LABEL=*) |
| 29 | RDEV="$(realpath /dev/disk/by-label/${bootparam_root#LABEL=})" |
| 30 | ;; |
| 31 | PARTLABEL=*) |
| 32 | RDEV="$(realpath /dev/disk/by-partlabel/${bootparam_root#PARTLABEL=})" |
| 33 | ;; |
| 34 | PARTUUID=*) |
| 35 | RDEV="$(realpath /dev/disk/by-partuuid/${bootparam_root#PARTUUID=})" |
| 36 | ;; |
| 37 | PATH=*) |
| 38 | RDEV="$(realpath /dev/disk/by-path/${bootparam_root#PATH=})" |
| 39 | ;; |
| 40 | UUID=*) |
| 41 | RDEV="$(realpath /dev/disk/by-uuid/${bootparam_root#UUID=})" |
| 42 | ;; |
| 43 | *) |
| 44 | RDEV="${bootparam_root}" |
| 45 | esac |
| 46 | debug "Sleeping for $delay second(s) to wait root to settle..." |
| 47 | sleep $delay |
| 48 | C=$(( $C + 1 )) |
| 49 | |
| 50 | done |
Andrew Geissler | cc58928 | 2020-09-18 13:34:40 -0500 | [diff] [blame] | 51 | |
| 52 | veritysetup \ |
Patrick Williams | 93c203f | 2021-10-06 16:15:23 -0500 | [diff] [blame^] | 53 | --data-block-size=${DATA_BLOCK_SIZE} \ |
Andrew Geissler | cc58928 | 2020-09-18 13:34:40 -0500 | [diff] [blame] | 54 | --hash-offset=${DATA_SIZE} \ |
| 55 | create rootfs \ |
| 56 | ${RDEV} \ |
| 57 | ${RDEV} \ |
| 58 | ${ROOT_HASH} |
| 59 | |
| 60 | mount \ |
| 61 | -o ro \ |
| 62 | /dev/mapper/rootfs \ |
| 63 | ${ROOTFS_DIR} || exit 2 |
| 64 | } |