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1 | 1 | #!/bin/sh |
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2 | 2 | # This file contains utility functions used by rpi23-gen-image.sh |
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3 | 3 | |
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4 | 4 | cleanup (){ |
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5 | 5 | set +x |
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6 | 6 | set +e |
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7 | 7 | |
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8 | 8 | # Remove exports from nexmon |
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9 | 9 | unset KERNEL |
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10 | 10 | unset ARCH |
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11 | 11 | unset SUBARCH |
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12 | 12 | unset CCPLUGIN |
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13 | 13 | unset ZLIBFLATE |
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14 | 14 | unset Q |
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15 | 15 | unset NEXMON_SETUP_ENV |
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16 | 16 | unset HOSTUNAME |
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17 | 17 | unset PLATFORMUNAME |
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18 | 18 | |
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19 | 19 | # Identify and kill all processes still using files |
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20 | 20 | echo "killing processes using mount point ..." |
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21 | 21 | fuser -k "${R}" |
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22 | 22 | sleep 3 |
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23 | 23 | fuser -9 -k -v "${R}" |
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24 | 24 | |
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25 | 25 | # Clean up temporary .password file |
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26 | 26 | if [ -r ".password" ] ; then |
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27 | 27 | shred -zu .password |
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28 | 28 | fi |
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29 | 29 | |
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30 | 30 | # Clean up all temporary mount points |
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31 | 31 | echo "removing temporary mount points ..." |
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32 | 32 | umount -l "${R}/proc" 2> /dev/null |
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33 | 33 | umount -l "${R}/sys" 2> /dev/null |
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34 | 34 | umount -l "${R}/dev/pts" 2> /dev/null |
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35 | 35 | umount "$BUILDDIR/mount/boot/firmware" 2> /dev/null |
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36 | 36 | umount "$BUILDDIR/mount" 2> /dev/null |
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37 | 37 | cryptsetup close "${CRYPTFS_MAPPING}" 2> /dev/null |
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38 | 38 | losetup -d "$ROOT_LOOP" 2> /dev/null |
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39 | 39 | losetup -d "$FRMW_LOOP" 2> /dev/null |
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40 | 40 | trap - 0 1 2 3 6 |
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41 | 41 | } |
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42 | 42 | |
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43 | 43 | chroot_exec() { |
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44 | 44 | # Exec command in chroot |
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45 | 45 | LANG=C LC_ALL=C DEBIAN_FRONTEND=noninteractive chroot "${R}" "$@" |
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46 | 46 | } |
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47 | 47 | |
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48 | 48 | as_nobody() { |
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49 | 49 | # Exec command as user nobody |
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50 | 50 | sudo -E -u nobody LANG=C LC_ALL=C "$@" |
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51 | 51 | } |
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52 | 52 | |
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53 | 53 | install_readonly() { |
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54 | 54 | # Install file with user read-only permissions |
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55 | 55 | install -o root -g root -m 644 "$@" |
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56 | 56 | } |
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57 | 57 | |
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58 | 58 | install_exec() { |
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59 | 59 | # Install file with root exec permissions |
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60 | 60 | install -o root -g root -m 744 "$@" |
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61 | 61 | } |
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62 | 62 | |
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63 | 63 | use_template () { |
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64 | 64 | # Test if configuration template file exists |
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65 | 65 | if [ ! -r "./templates/${CONFIG_TEMPLATE}" ] ; then |
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66 | 66 | echo "error: configuration template ${CONFIG_TEMPLATE} not found" |
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67 | 67 | exit 1 |
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68 | 68 | fi |
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69 | 69 | |
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70 | 70 | # Load template configuration parameters |
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71 | 71 | . "./templates/${CONFIG_TEMPLATE}" |
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72 | 72 | } |
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73 | 73 | |
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74 | 74 | chroot_install_cc() { |
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75 | 75 | # Install c/c++ build environment inside the chroot |
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76 | 76 | if [ -z "${COMPILER_PACKAGES}" ] ; then |
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77 | 77 | COMPILER_PACKAGES=$(chroot_exec apt-get -s install g++ make bc | grep "^Inst " | awk -v ORS=" " '{ print $2 }') |
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78 | 78 | # Install COMPILER_PACKAGES in chroot |
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79 |
chroot_exec apt-get -q -y --allow-unauthenticated --no-install-recommends install |
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79 | chroot_exec apt-get -q -y --allow-unauthenticated --no-install-recommends install ${COMPILER_PACKAGES} | |
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80 | 80 | fi |
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81 | 81 | } |
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82 | 82 | |
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83 | 83 | chroot_remove_cc() { |
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84 | 84 | # Remove c/c++ build environment from the chroot |
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85 | 85 | if [ -n "${COMPILER_PACKAGES}" ] ; then |
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86 | 86 | chroot_exec apt-get -qq -y --auto-remove purge "${COMPILER_PACKAGES}" |
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87 | 87 | COMPILER_PACKAGES="" |
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88 | 88 | fi |
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89 | 89 | } |
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90 | 90 | # GPL v2.0 - #https://github.com/sakaki-/bcmrpi3-kernel-bis/blob/master/conform_config.sh |
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91 | 91 | set_kernel_config() { |
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92 | 92 | # flag as $1, value to set as $2, config must exist at "./.config" |
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93 | 93 | TGT="CONFIG_${1#CONFIG_}" |
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94 | 94 | REP="${2}" |
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95 | 95 | if grep -q "^${TGT}[^_]" .config; then |
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96 | 96 | sed -i "s/^\(${TGT}=.*\|# ${TGT} is not set\)/${TGT}=${REP}/" .config |
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97 | 97 | else |
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98 | 98 | echo "${TGT}"="${2}" >> .config |
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99 | 99 | fi |
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100 | 100 | } |
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101 | 101 | # unset kernel config parameter |
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102 | 102 | unset_kernel_config() { |
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103 | 103 | # unsets flag with the value of $1, config must exist at "./.config" |
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104 | 104 | TGT="CONFIG_${1#CONFIG_}" |
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105 | 105 | sed -i "s/^${TGT}=.*/# ${TGT} is not set/" .config |
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106 | 106 | } |
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107 | 107 | |
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108 | 108 | # https://serverfault.com/a/682849 - converts e.g. /24 to 255.255.255.0 |
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109 | 109 | cdr2mask () |
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110 | 110 | { |
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111 | 111 | # Number of args to shift, 255..255, first non-255 byte, zeroes |
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112 | 112 | set -- $(( 5 - ($1 / 8) )) 255 255 255 255 $(( (255 << (8 - ($1 % 8))) & 255 )) 0 0 0 |
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113 | 113 | [ $1 -gt 1 ] && shift $1 || shift |
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114 | 114 | echo ${1-0}.${2-0}.${3-0}.${4-0} |
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115 | 115 | } No newline at end of file |
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