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1 | #!/bin/sh | |
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2 | ||
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3 | PREREQ="dropbear" | |
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4 | ||
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5 | prereqs() { | |
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6 | echo "$PREREQ" | |
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7 | } | |
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8 | ||
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9 | case "$1" in | |
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10 | prereqs) | |
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11 | prereqs | |
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12 | exit 0 | |
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13 | ;; | |
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14 | esac | |
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15 | ||
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16 | . "${CONFDIR}/initramfs.conf" | |
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17 | . /usr/share/initramfs-tools/hook-functions | |
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18 | ||
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19 | if [ "${DROPBEAR}" != "n" ] && [ -r "/etc/crypttab" ] ; then | |
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20 | cat > "${DESTDIR}/bin/unlock" << EOF | |
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21 | #!/bin/sh | |
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22 | if PATH=/lib/unlock:/bin:/sbin /scripts/local-top/cryptroot; then | |
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23 | kill \`ps | grep cryptroot | grep -v "grep" | awk '{print \$1}'\` | |
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24 | # following line kill the remote shell right after the passphrase has | |
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25 | # been entered. | |
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26 | kill -9 \`ps | grep "\-sh" | grep -v "grep" | awk '{print \$1}'\` | |
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27 | exit 0 | |
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28 | fi | |
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29 | exit 1 | |
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30 | EOF | |
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31 | ||
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32 | chmod 755 "${DESTDIR}/bin/unlock" | |
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33 | ||
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34 | mkdir -p "${DESTDIR}/lib/unlock" | |
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35 | cat > "${DESTDIR}/lib/unlock/plymouth" << EOF | |
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36 | #!/bin/sh | |
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37 | [ "\$1" == "--ping" ] && exit 1 | |
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38 | /bin/plymouth "\$@" | |
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39 | EOF | |
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40 | ||
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41 | chmod 755 "${DESTDIR}/lib/unlock/plymouth" | |
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42 | ||
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43 | echo To unlock root-partition run "unlock" >> ${DESTDIR}/etc/motd | |
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44 | ||
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45 | fi No newline at end of file | |
| @@ -63,13 +63,13 If you want to change e.g. cross-compiler -> Templates always override defaults | |||
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63 | 63 | |
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64 | 64 | ##### `RPI_MODEL`=2 |
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65 | 65 | Specifiy the target Raspberry Pi hardware model. The script at this time supports the following Raspberry Pi models: |
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66 | `0` = Used for Raspberry Pi 0 and Raspberry Pi 0 W | |
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67 | `1` = Used for Pi 1 model A and B | |
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68 | `1P` = Used for Pi 1 model B+ and A+ | |
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69 | `2` = Used for Pi 2 model B | |
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70 | `3` = Used for Pi 3 model B | |
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71 | `3P` = Used for Pi 3 model B+ | |
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72 | `BUILD_KERNEL`=true will automatically be set if the Raspberry Pi model `3` or `3P` is used. | |
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66 | - `0` = Used for Raspberry Pi 0 and Raspberry Pi 0 W | |
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67 | - `1` = Used for Pi 1 model A and B | |
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68 | - `1P` = Used for Pi 1 model B+ and A+ | |
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69 | - `2` = Used for Pi 2 model B | |
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70 | - `3` = Used for Pi 3 model B | |
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71 | - `3P` = Used for Pi 3 model B+ | |
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72 | - `BUILD_KERNEL`=true will automatically be set if the Raspberry Pi model `3` or `3P` is used. | |
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73 | 73 | |
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74 | 74 | ##### `RELEASE`="buster" |
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75 | 75 | Set the desired Debian release name. The script at this time supports the bootstrapping of the Debian releases `stretch` and `buster`. |
| @@ -412,6 +412,12 Set cipher specification string. `aes-xts*` ciphers are strongly recommended. | |||
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412 | 412 | ##### `CRYPTFS_XTSKEYSIZE`=512 |
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413 | 413 | Sets key size in bits. The argument has to be a multiple of 8. |
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414 | 414 | |
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415 | ##### `CRYPTFS_DROPBEAR`=false | |
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416 | Enable Dropbear Initramfs support | |
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417 | ||
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418 | ##### `CRYPTFS_DROPBEAR_PUBKEY`="" | |
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419 | Provide path to dropbear Public RSA-OpenSSH Key | |
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420 | ||
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415 | 421 | --- |
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416 | 422 | |
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417 | 423 | #### Build settings: |
| @@ -42,9 +42,40 if [ "$BUILD_KERNEL" = true ] && [ "$ENABLE_INITRAMFS" = true ] ; then | |||
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42 | 42 | install_exec files/initramfs/expand-premount "${ETC_DIR}/initramfs-tools/scripts/local-premount/expand-premount" |
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43 | 43 | install_exec files/initramfs/expand-tools "${ETC_DIR}/initramfs-tools/hooks/expand-tools" |
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44 | 44 | fi |
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45 | ||
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46 | if [ "$CRYPTFS_DROPBEAR" = true ]; then | |
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47 | if [ -n "$CRYPTFS_DROPBEAR_PUBKEY" ] && [ -f "$CRYPTFS_DROPBEAR_PUBKEY" ] ; then | |
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48 | install_readonly "${CRYPTFS_DROPBEAR_PUBKEY}" "${ETC_DIR}/dropbear-initramfs/id_rsa.pub" | |
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49 | cat /etc/dropbear-initramfs/id_rsa.pub >> /etc/dropbear-initramfs/authorized_keys | |
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50 | else | |
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51 | # Create key | |
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52 | chroot_exec /usr/bin/dropbearkey -t rsa -f /etc/dropbear-initramfs/id_rsa.dropbear | |
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53 | ||
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54 | # Convert dropbear key to openssh key | |
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55 | chroot_exec /usr/lib/dropbear/dropbearconvert dropbear openssh /etc/dropbear-initramfs/id_rsa.dropbear /etc/dropbear-initramfs/id_rsa | |
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56 | ||
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57 | # Get Public Key Part | |
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58 | touch /etc/dropbear-initramfs/id_rsa.pub | |
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59 | chroot_exec /usr/bin/dropbearkey -y -f /etc/dropbear-initramfs/id_rsa.dropbear | chroot_exec tee /etc/dropbear-initramfs/id_rsa.pub | |
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60 | ||
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61 | # Delete unwanted lines | |
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62 | sed -i '/Public/d' "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub | |
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63 | sed -i '/Fingerprint/d' "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub | |
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64 | ||
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65 | # Trust the new key | |
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66 | touch "${ETC_DIR}"/dropbear-initramfs/authorized_keys | |
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67 | cat "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub | chroot_exec tee -a "${ETC_DIR}"/dropbear-initramfs/authorized_keys | |
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45 | 68 | |
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46 | # Disable SSHD inside initramfs | |
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47 | printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=n\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf" | |
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69 | # Save Keys - convert with putty from rsa/openssh to puttkey | |
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70 | cp -f "${ETC_DIR}"/dropbear-initramfs/id_rsa "${BASEDIR}"/dropbear_initramfs_key.rsa | |
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71 | ||
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72 | #Get unlock script | |
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73 | install_exec files/initramfs/crypt_unlock.sh "${ETC_DIR}/initramfs-tools/hooks/crypt_unlock.sh" | |
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74 | fi | |
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75 | else | |
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76 | # Disable SSHD inside initramfs | |
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77 | printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=n\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf" | |
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78 | fi | |
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48 | 79 | |
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49 | 80 | # Add cryptsetup modules to initramfs |
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50 | 81 | printf "#\n# CRYPTSETUP: [ y | n ]\n#\n\nCRYPTSETUP=y\n" >> "${ETC_DIR}/initramfs-tools/conf-hook" |
| @@ -198,6 +198,10 CRYPTFS_PASSWORD=${CRYPTFS_PASSWORD:=""} | |||
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198 | 198 | CRYPTFS_MAPPING=${CRYPTFS_MAPPING:="secure"} |
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199 | 199 | CRYPTFS_CIPHER=${CRYPTFS_CIPHER:="aes-xts-plain64:sha512"} |
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200 | 200 | CRYPTFS_XTSKEYSIZE=${CRYPTFS_XTSKEYSIZE:=512} |
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201 | #Dropbear-initramfs supports unlocking encrypted filesystem via SSH on bootup | |
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202 | CRYPTFS_DROPBEAR=${CRYPTFS_DROPBEAR:=true} | |
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203 | #Provide your own Dropbear Public RSA-OpenSSH Key otherwise it will be generated | |
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204 | CRYPTFS_DROPBEAR_PUBKEY=${CRYPTFS_DROPBEAR_PUBKEY:=""} | |
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201 | 205 | |
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202 | 206 | # Chroot scripts directory |
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203 | 207 | CHROOT_SCRIPTS=${CHROOT_SCRIPTS:=""} |
| @@ -378,6 +382,11 if [ "$ENABLE_CRYPTFS" = true ] && [ "$BUILD_KERNEL" = true ] ; then | |||
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378 | 382 | REQUIRED_PACKAGES="${REQUIRED_PACKAGES} cryptsetup" |
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379 | 383 | APT_INCLUDES="${APT_INCLUDES},cryptsetup,busybox,console-setup" |
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380 | 384 | |
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385 | #If cryptfs,dropbear and initramfs are enabled include dropbear-initramfs package | |
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386 | if [ "$CRYPTFS_DROPBEAR" = true ] && [ "$ENABLE_INITRAMFS" = true ]; then | |
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387 | APT_INCLUDES="${APT_INCLUDES},dropbear-initramfs" | |
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388 | fi | |
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389 | ||
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381 | 390 | if [ -z "$CRYPTFS_PASSWORD" ] ; then |
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382 | 391 | echo "error: no password defined (CRYPTFS_PASSWORD)!" |
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383 | 392 | exit 1 |
| @@ -472,7 +481,7 if [ -n "$FBTURBOSRC_DIR" ] && [ ! -d "$FBTURBOSRC_DIR" ] ; then | |||
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472 | 481 | exit 1 |
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473 | 482 | fi |
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474 | 483 | |
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475 |
# Check if specified |
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484 | # Check if specified NEXMON_DIR directory exists | |
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476 | 485 | if [ -n "$NEXMON_DIR" ] && [ ! -d "$NEXMON_DIR" ] ; then |
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477 | 486 | echo "error: '${NEXMON_DIR}' specified directory not found (NEXMON_DIR)!" |
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478 | 487 | exit 1 |
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